Showing papers on "Bell mouth published in 2019"

Side push bell mouth panel and deflector manufacturing method

Abstract: The invention relates to a manufacturing method of a side push bell mouth panel and a deflector, comprising the following steps: selecting a base surface of a tire frame; Projecting the contour linesof the side pushing bell mouth enclosure plate and the air guide plate on the hull outer plate onto the base surface of the jig frame; setting a first upright column group and a second upright columngroup; welding a jig template on the upper ends of the first column group and the second column group respectively to complete the jig manufacturing; Lifting a plurality of processed and molded shroudboards to the tire frame respectively and fixing the plurality of shroud boards and the tire frame template respectively; splicing and fixing the side push bell mouth shroud and the air guide plate;the side push bell mouth shroud plate and the air guide plate are separated from the tire frame template respectively and the integral structure after the side push bell mouth shroud plate and the airguide plate are spliced and molded is obtained. The invention provides a manufacturing method of a side pushing bell mouth shroud and a deflector, which can save time for bulk loading of a ship slip,improve the working efficiency of the ship slip, and ensure the accuracy of the bell mouth shroud and the deflector.

Blower unit and method for manufacturing blower unit

Abstract: This method for manufacturing a blower unit that comprises: an electric motor (16); first and second centrifugal fans (11, 12); a blower casing (10); first and second scroll casings (13, 14); a seal material (17) for closing between the electric motor and the portion of the blower casing, in which an opening is formed; a bell mouth (150) for conducting an air flow to the second centrifugal fan; and holding sections (151a-151c, 155a-155c) for holding the seal material, has sandwiching the seal material between the electric motor and the holding sections and mounting the bell mouth and the holding sections to the electric motor, connecting the first and second centrifugal fans to the rotating shaft of the electric motor while the bell mouth and the holding sections are mounted to the electric motor, and accommodating the first and second centrifugal fans within the first and second scroll casings, respectively, and mounting the electric motor to the blower casing, thereby causing the electric motor to close the opening in the blower casing.

Cable carrier for commodity circulation

Abstract: The utility model discloses a cable carrier for commodity circulation, including bottom plate and duo gen stand, four angles of lower surface department of bottom plate all be provided with the gyro wheel, the stand pass through detachable construction and bottom plate and link to each other, the lower surface of bottom plate on set firmly so that being parallel to each other and many square steeltube of equidistant setting of fork truck transport, detachable construction include bolt and the equipartition big end down's on the bottom plate bell mouth, the screw thread section of bolt pass behind the bell mouth with stand threaded connection, wherein the canned paragraph of bolt is fixed with bell mouth cone combined with. The utility model discloses simple structure connects swiftly, andcan adjust the height as required to carry the cable better.

Ground brush for convenient-installation vacuum cleaner

Abstract: The invention discloses a ground brush for convenient-installation vacuum cleaner. The round brush comprises an air duct cover plate; the air duct cover plate is embedded in a relief hole and is engaged with a base opening and a protrusion part to form a dust suction port and a dust suction passage respectively; the dust suction port communicates with a pipe cavity in a pipe joint through the dustsuction passage located in the ground brush body; the upper end surface of the base is provided with two guide columns; the base is embedded in guide holes of a lifting plate; elastic members are mounted in accommodating cavities of the lifting plate; the elastic components are located between the accommodating cavities and the base; the opening of the pipe joint is a bell mouth; the diameter ofthe outer mouth of the pipe joint is larger than the diameter of the end mouth; and the diameter of the outer mouth of the bent pipe portion is between the diameter at the outer mouth of the pipe joint and the diameter at the end mouth. The ground brush can ensure a high degree of vacuum at an air inlet when the brush strips are extended, and improve dust suction efficiency, and suction force in front of the dust suction port.

Split type target shielding case

Abstract: The utility model discloses a split type target material shielding case which comprises a first body and a second body, the first body is provided with a bell mouth part, the second body is provided with an inserting part, and the first body and the second body are connected in a bell and spigot joint mode through the bell mouth part and the inserting part to form a case body which can be coveredon a target material. According to the utility model, the bell mouth is arranged on the first body of the shielding case; flange is arranged on the second body, the first body and the second body arein bell-and-spigot joint through the bell mouth and the flange, the size of the inner cavity of the shielding case is adjusted by changing the depth of the flange inserted into the bell mouth so as toadjust the distance between the target material and the shielding case, the target material is prevented from making contact with the shielding case in the rotating process, and meanwhile the high-purity requirement of sputter coating can be met.

Outdoor unit of air conditioning system

Abstract: The purpose of the present invention is to further increase the efficiency of heat exchange in an outdoor unit. An outdoor unit (1) comprising a cylindrical bell mouth (12) provided to a base plate (11) that constitutes part of a housing (10), a fan (20) provided inside the bell mouth (12), a motor (21) that is installed in a central part of the fan (20) and rotatably drives the fan (20), a motor support member (30A) that is provided so as to straddle an opening part (13) of the bell mouth (12) to support the motor (21), and heat exchangers (15) provided in a pair of two so as to face each other across the opening part (13) of the bell mouth (20). At least one end part (30a) of the motor support member (30A) is disposed between end parts (15e, 15f) of the pair of heat exchangers (15).

Ventilation leather shoes

Abstract: The utility model discloses a ventilation leather shoes, be provided with the cavity in the sole, be provided with two at least packing element of evenly distributed in the cavity, packing element's upper end and lower extreme are connected with the top surface and the bottom surface of cavity respectively, be provided with respectively on packing element's the left side lateral wall to the sunkenshrinkage pool in the outside, be provided with two at least bleeder vents on the shoe -pad evenly distributed, be provided with the bell mouth of at least two inverted cone shape on the vamp evenlydistributed, be provided with the dust screen in the bell mouth respectively, be connected with two at least springs between the top surface of cavity and the bottom surface evenly distributed, its ventilation effect is good, it is dustproof effectual, wear comfort is good.

Spigot-and-socket elbow for glass fiber reinforced plastic sand inclusion pipe

Abstract: The utility model discloses a spigot-and-socket type elbow for a glass fiber reinforced plastic sand inclusion pipe. Pipe joint, key points of the technical scheme are as follows: the key points are as follows; pipe body, one end of the pipe body is fixedly connected with a socket; the other end of the pipe body is connected with a bell mouth; the inserting openings can be inserted into the adjacent pipeline bell mouths; the inserting opening is connected with a sealing assembly for sealing a gap between the pipeline bell mouth and the inserting opening; the sealing assembly comprises a hollowsealing ring connected to the inserting opening in a sleeving mode, an air inlet pipe for inflating the sealing ring and a one-way valve for limiting the air flow direction, the air inlet pipe is communicated with an inner cavity of the sealing ring, and the one-way valve and the air inlet pipe are coaxially arranged and are communicated towards the sealing ring. The sealing device is reasonablein structure, the gap between the inserting opening and the pipeline is sealed through expansion of the sealing ring, the steps during installation of the pipeline and the elbow are reduced, and the working efficiency is improved.

Glass horn mouth forming device

Abstract: The utility model discloses a glass horn mouth forming device which comprises a glass lathe positioning support, a tool connecting plate, a tool transverse support, a tool vertical support, a supportsupporting shaft, a limiting support, a limiting shaft, a die limiting support, a die limiting shaft, a forming die handle, a forming die shaft, a forming die, a forming die bearing and a forming diefixing bolt The bell mouth forming device can be fixed on all horizontal glass lathes, is simple in structure and convenient to operate, can be used for machining a forming graphite die according tothe specific specification of a bell mouth, and can be used for machining a high-standard glass bell mouth by virtue of a bell mouth forming tool and the forming die

Experimental and numerical investigation of bottom outlet hydraulic model

Abstract: Using experimental models along with conducting numerical analysis have been widely used in performance recognition and optimization of hydraulic equipments. Numerical modeling has lower cost rather than experimental one; however practical tests are commonly used because of the hydraulic structure importance especially in dams. Meanwhile numerical methods could be used for future designs through validating numerical models. In this paper, volume of fluid method, VOF, has been employed to simulate the free surface flow at the dam bottom outlet form bell mouth section up to the downstream channel. Since the flow through the gates has high Reynolds number, the standard k-e and also Reynolds Stress Model, RSM, turbulence models is used and the results compared. The discharge coefficient and the ventilated air velocity through the vents is computed numerically and compared with the experimental data. Comparison between the experimental data and numerical simulation results shows good compatibility, especially in RSM turbulence model rather than k-e turbulence model. The results show that the maximum error percentage in simulation of the discharge coefficient and the ventilated air velocity is 9% and 3% respectively.

Drainage pipeline connector with anti-leakage structure

Abstract: The utility model discloses a drainage pipeline connector with an anti-leakage structure. The pipeline comprises a spigot pipeline, a bell mouth pipeline and a rubber ring, a bellmouth of the bellmouth pipeline is matched with a spigot of the spigot pipeline to form a pipeline interface; the rubber ring is arranged at the pipeline joint; the device further comprises lantern rings, geotechnical cloth and fixing nails. Wherein the lantern ring fixedly sleeves the spigot pipeline, the side wall, close to the bell mouth, of the lantern ring abuts against the end face of the bell mouth, the outer side wall of the lantern ring is flush with the outer side wall of the bell mouth pipeline, the geotextile wraps a connector of the drainage pipeline and covers the lantern ring, the fixing nails are nailed into the positions, opposite to the lantern ring, of the geotextile, and the fixing nails penetrate through the geotextile. According to the utility model, the situation of leakage caused by cracks at the pipeline joint can be reduced, the sealing performance of the pipeline joint is enhanced, the drainage pipeline joint is firmer, and the particle loss of a soil body is prevented, so that the occurrence of surface collapse is greatly reduced.

Double-bell-and-spigot reinforced concrete jacking pipe

Abstract: The utility model discloses a reinforced concrete jacking pipe with double bell and spigot joints. Wherein the bell mouth steel ring and the spigot steel ring are located at the two ends of the pipe body respectively. The pipe body is made of reinforced concrete. The bell mouth steel ring and the spigot steel ring are respectively welded with two ends of the pipe body; an outer wall steel bellmouth is arranged on the outer side face of the pipe body port where the bellmouth steel ring is located, an outer wall steel inserting opening is formed in the outer side face of the pipe body port wherethe inserting opening steel ring is located, the outer wall steel inserting opening is matched with the outer wall steel bellmouth, and the bellmouth steel ring is matched with the inserting openingsteel ring. According to the utility model, the problem of water leakage at the joint of the existing reinforced concrete jacking pipe is solved, and the sealing zero leakage of the pipe joint is realized through the inner and outer bell and spigot structures.

Centrifugal Blower, Air Conditioner, and Refrigeration Cycle Apparatus

Abstract: A centrifugal blower having high efficiency and reduced noise is provided. A centrifugal blower to be accommodated in a housing having an air inlet includes a spiral casing having a bell mouth and a centrifugal fan housed in the casing. The bell mouth includes a first region and a second region. The first region is disposed closest to the air inlet. A distance from a rotational axis of the centrifugal fan to a downstream end in the first region is greater than a distance from the rotational axis to the downstream end in the second region. A curvature of a surface of the first region in a cross section including the rotational axis is smaller than a curvature of a surface of the second region in a cross section including the rotational axis.

Inspection well flexible interface structure

Abstract: The invention relates to an inspection well flexible interface structure. The inspection well flexible interface structure comprises a bell mouth located on a reserved hole and a socket on a drainagepipe, wherein the bell mouth comprises an inclined surface, a circle of flange is arranged at the end of the socket, a circle of first sealing ring is arranged on the flange in a sleeve mode, when thesocket and the bell mouth are used for inserting, and the first sealing ring abuts against the inclined surface. According to the structure, the effect of improving the sealing performance between the bell mouth and the socket is achieved.

Centrifugal blower, air conditioner, and refrigeration cycle device

Abstract: Provided are a high-efficiency, low-noise centrifugal blower, and an air conditioner and a refrigeration cycle device in which this centrifugal blower is used. The centrifugal blower, which is accommodated in a housing (1) having an air intake port (8), is provided with a volute casing (7) and a centrifugal fan (3) accommodated inside the volute casing (7). The volute casing (7) includes a side wall (7c). The side wall (7c) has a bell mouth (5) encircling an opening. The bell mouth (5) includes a first area and a second area. The first area is placed in a position nearest to the air intake port (8). A distance (L2) from a rotation shaft (X) of the centrifugal fan (3) to a downstream end (5a) in the first area is greater than a distance (L1) from the rotation shaft (X) to the downstream end (5a) in the second area. The curvature of a surface (5c) in the first area of a cross section that includes the rotation shaft (X) is less than the curvature of a surface (5b) of the second area of a cross section that includes the rotation shaft (X).

System for coupling between a bend stiffener and a bell mouth comprising a plurality of locking mechanisms

Abstract: The present invention provides a system for coupling between a bend stiffener (1) and a bell mouth (2) comprising a plurality of locking mechanisms (3), wherein each locking mechanism (3) is secured externally to the bell mouth (2) and comprises a movable lug (30) positioned such as to slope downwards, in which the lug (30) accesses the interior of the bell mouth (2) and is actuated by an elastic element (34) designed to exert pressure on the lug (30) in the direction of the interior of the bell mouth (2).

low standing wave ratio antenna structure

Abstract: The invention belongs to the field of electromagnetics and relates to a low standing wave ratio antenna structure. The antenna structure comprises a circular bell mouth surface, a cone, a square-circle transition section and a rectangular transition section; The arc line corresponding to one 90 degree and the arc line corresponding to the other 120 degree on the circular bell mouth surface are removed by a certain thickness, and the maximum removal thickness is 1mm; The arc line corresponding to 90 DEG and the arc line corresponding to 120 DEG have the same axis of symmetry. The invention breaks through the traditional design method and improves the standing wave ratio, an important parameter of the horn antenna.

Blower and refrigeration device comprising blower

Abstract: The present invention improves the efficiency of a blower. In this blower, a first extended section (61) comprises a first extended end (611) overlapping with a bell mouth upwind-side end (66) when viewed from a radial direction (dr2), and said first extended section (61) extends along a rotational axis direction (dr1) on the inner side in the radial direction (dr2) of a bell mouth (65). A second extended section (62) comprises a second extended end (621) overlapping with the bell mouth (65) when viewed from the rotational axis direction (dr1), and said second extended section (62) is connected to the first extended end (611) and extends along the radial direction (dr2) to the second extended end (621). The second extended end (621) overlaps with a virtual point (P1) in a location where the bell mouth upwind-side end (66) is extended linearly on the upwind side along the rotational axis direction (dr1). A third extended section (63) is connected to the second extended end (621), extends along the radial direction (dr2) further to the exterior in the radial direction (dr2) than the bell mouth upwind-side end (66), and has a size (L1) (the length of the third extended section (63) in the radial direction (dr2)) that is at least 0.5 times the length of a distance (D1) (the linear distance between the bell mouth upwind-side end (66) and the virtual point (P1)).

Systems and methods for low pressure condenser inlet baffles

Abstract: A condenser includes a refrigerant inlet having an inlet pipe traversing from an outside of the shell to the interior space. The inlet pipe includes an inlet pipe inner diameter. Additionally, the refrigerant inlet includes a bell mouth tapered outward from the inlet pipe and into the interior space of the shell. The condenser also includes a refrigerant inlet baffle configured to distribute a low pressure refrigerant gas along a portion of an interior length of a shell of the condenser. An upper surface of the refrigerant inlet baffle is vertically spaced from a bottom edge of the bell mouth by an upper layout height. Additionally, a bottom surface of the refrigerant inlet baffle is vertically spaced from a bottom inner surface of the shell by a lower layout height. The upper layout height is greater than 0.25 of the inlet pipe inner diameter.

Blower and refrigeration cycle device

Abstract: This blower is provided with a propeller fan, a bell mouth which surrounds the outer peripheral side of the propeller fan, and a fan grille which is disposed downstream of the bell mouth and which has a plurality of first bars. The edge of the outlet of the bell mouth has a change section, the distance of which from the rotation axis of the propeller fan changes. In a cross section of an arbitrary one of the plurality of first bars obtained by cutting the arbitrary first bar by a plane perpendicular to the longitudinal direction of the arbitrary first bar, an imaginary straight line which connects an upstream end section and a downstream end section is defined as a first imaginary line. In each of the portions of the plurality of first bars, which are disposed on the inner peripheral side of the change section, the angle between an imaginary straight line parallel to the rotation axis and the first imaginary straight line is varied according to the distance between the side surface wall of the edge and the rotation axis.

Machining process of three-way pipe fitting for pipeline

Abstract: The invention discloses a machining process of a three-way pipe fitting for a pipeline, and belongs to the technical field of metal machining processes. The process includes 1) a step of blanking; 2)a step of molding; 3) a step of punching, spinning, shaping and flattening, namely, on the first station, punching a protruding sealing end in the middle of a formed three-way pipe blank; on the second station, subjecting a punched middle bellmouth to spinning extrusion through a spinning head until the bell mouth is completely opened; on the third station, flaring the three bellmouths of the three-way pipe blank through an upper die and a lower die respectively; and flattening the middle bell mouth of the three-way pipe blank on the fourth station; 4) a step of polishing, cleaning and drying;5) a step of inspecting and warehousing. According to the machining process of the three-way pipe fitting for the pipeline, the pipe utilization rate is increased, materials are saved, the weight ofthe three-way pipe fitting is reduced, and meanwhile the product standard can still be met.

Bell mouth device for constructional column top concrete pouring and supporting method thereof

Abstract: Disclosed is a bell mouth device for constructional column top concrete pouring. The device includes an angle steel frame and a slide plate. The device is characterized in that the angle steel frame is a rectangular frame, the rectangular frame includes upper, middle and lower parts from top to bottom, the slide plate is a first steel plate (6) which is obliquely arranged, the bottom of the firststeel plate is aligned with and welded to the top of a third steel plate, side baffle plates are arranged on the two sides of the first steel plate, one side of each side baffle plate is aligned withand welded to the side of the first steel plate, the other side of each side baffle plate is aligned with and welded to angle steel at a middle hole of the angel steel frame, and so a bell mouth structure defined by a second steel plate, the two side baffle plates and the first steel plate is achieved. The bell mouth device for constructional column top concrete pouring has the advantages that thedevice is simple in structure and convenient in manufacturing, the engineering quality is safe and reliable, the occurrence of holes and gaps caused by uncompacted concrete pouring at a contact partbetween the top of a constructional column and a beam is effectively avoided, the engineering quality and seismic performance of a wall are ensured, and the construction cost is reduced.