Bell mouth

About: Bell mouth is a research topic. Over the lifetime, 603 publications have been published within this topic receiving 1624 citations.

Reinforced concrete sleeve for heating power jacking construction

Abstract: The utility model relates to a reinforced concrete sleeve for heating power jacking construction, relates to a rigidity pipe, particularly relates to a reinforced concrete pipe capable of hitching a heating power pipeline and being used for the heating power jacking construction, and aims to providing the reinforced concrete sleeve for the heating power jacking construction, wherein the reinforced concrete sleeve for the heating power jacking construction is good in tightness, water-seepage-proof and high in structural strength The improvement of the reinforced concrete sleeve for the heating power jacking construction mainly lies in a bell mouth A bell mouth ring 2 is fixedly connected at the left end of a reinforced concrete pipe wall 1 A water stop steel ring 21 coaxial with the bell mouth ring is welded on the right side of the left end surface on the reinforced concrete pipe wall 1 on the inner wall of the bell mouth ring A steel bar blocking ring 22 coaxial with the bell mouth ring is welded on the right side of the water stop steel ring 21 on the inner wall of the bell mouth ring Adhesive tape 5 is placed between the water stop steel ring 21 and the steel bar blocking ring 22, wherein the adhesive tape swells when meeting water A siliceous rubber cushion 6 and a siliceous bi-directional water stop sealed rubber ring 7 are stuck at the left end surface of the reinforced concrete pipe wall 1 The siliceous bi-directional water stop sealed rubber ring 7 is placed between the ring inner wall of the siliceous rubber cushion 6 and the inner wall of the reinforced concrete pipe wall 1

Fan motor vibration-proof structure for air conditioners and indoor unit of air conditioners

Abstract: This fan motor vibration-proof structure for air conditioners is equipped with: a body which has a suction port at the top thereof and a blowout port at the bottom thereof; and a propeller fan assembly which is disposed at an upper portion within the body, and blows out the air sucked in from the suction port to the blowout port. The propeller fan assembly has a propeller fan, a fan motor driving the propeller fan, and a bell mouth body. The bell mouth body has: a cylindrical bell mouth portion surrounding the propeller fan; a fan motor fixing portion disposed at the center of the bell mouth portion; a coupling portion that couples the bell mouth portion and the fan motor fixing portion; and mounting portions for mounting the propeller fan assembly. The fan motor is fixed to the fan motor fixing portion of the bell mouth body and the propeller fan, and is formed integrally therewith. The propeller fan assembly is mounted, at the mounting portions, with three or more vibration-proof members interposed therebetween, to a member of the body to which the propeller fan assembly is mounted.

Level pressure throttling arrangement that minor diameter water injection well was used

Abstract: The utility model provides a level pressure throttling arrangement that minor diameter water injection well was used, a water distribution section of thick bamboo is put into to the level pressure spring, the upper portion of screen pipe and the sub -unit connection of a water distribution section of thick bamboo, the valve bonnet is put into to the valve ball, the valve ball drops on on the valve opening, toper single current valve is connected with the upper portion of valve bonnet, there is the UNICOM hole bottom of toper single current valve, put into a water distribution section of thick bamboo outside the lower part of valve bonnet behind the suit movable sealing ring alive, the upper end at the level pressure spring is sat to the valve bonnet, the section of thick bamboo wall mounting water flow control orifice plate of a water distribution section of thick bamboo, there is the water distribution hole at the center of water flow control orifice plate, the lower screw thread of top connection and the upper portion threaded connection of a water distribution section of thick bamboo, there is the oil pipe screw thread on the upper portion of top connection, there is the bell mouth bottom of top connection, the cooperation of bell mouth and toper single current valve sealed, the water flow control orifice plate be in live movable sealing ring with the upper portion taper surface contact of bell mouth and toper single current valve take things between, the water injection mandrel is synthetic integrative with the flow controller, can reduce the external diameter, satisfies and goes into the requirement that the internal diameter reduces after the casing patching down, the ability can satisfy the water injection and return the well -flushing requirement.

Duct for cold air of refrigerator

Abstract: PURPOSE: A cooling air duct for refrigerator is provided to increase the amount of cooling air being introduced into the refrigerator by preventing generation of vortex. CONSTITUTION: A cooling air duct comprises a rear cover(11) having a predetermined thickness, and a front cover attached to the rear cover. The rear cover has a bottom surface(14) recessed into a predetermined depth from an upper surface(13) of the rear cover so as to form a predetermined space. The bottom surface accommodates a bell mouth(15) for introducing the cooling air into the space, and a guide member for changing the flow of the cooling air introduced into the space through the bell mouth. A vortex preventing structure(19) is arranged at the bottom surface, in such a manner that the vortex preventing structure is lower than the lower end of the guide member, with the bell mouth interposed between the guide member and the vortex preventing structure. The vortex preventing structure prevents generation of vortex of the cooling air being guided by the guide member.

Air suction sound eliminator of compressor

Abstract: The utility model discloses a compressor air suction silencer which comprises an air inlet channel for entering of the refrigerant, a silencer cavity, an air outlet channel and a part which is connected between the air outlet channel and the cylinder cover. The utility model is characterized in that the silencer cavity is composed of a cavity cover and an air suction cavity. The air suction cavity is provided with an air inlet channel and an air outlet channel. The front end of the air inlet channel is an air inlet opening with shape of bell mouth. The air suction cavity, the air inlet channel and the air outlet channel are a whole component. The cavity cover and the air suction cavity are welded and fixed through ultrasonic and are sealed and connected together. The versatility and noise reducing effect of the compressor air suction silencer according to the utility model are equally better than the existing silencer. The performance coefficient of the compressor can be effectively increased, and the problem of air leakage in the silencer with an upper-and-down connecting structure is avoided.