The invention discloses a multifunctional office chair, comprising a chair frame, a chair cushion, a chair back assembly, two armrests, a massaging assembly and a connecting assembly, wherein the two armrests are respectively and fixedly arranged on the left and right sides of the chair cushion The multifunctional office chair is characterized in that the massaging assembly is arranged at the rear side of the chair back assembly and used for massaging the back of a human body; the connecting assembly comprises a fixed plate, a connecting frame, pull rods, torsional springs and a chair cushion guide rail assembly; the fixed plate is fixedly arranged on the chair frame; the connecting frame is fixedly arranged on the fixed plate and the chair cushion is fixedly arranged on the fixed plate through the chair cushion guide rail assembly; the chair back assembly is rotatably connected to the connecting frame; and the linkage of the chair cushion and the chair back assembly is realized through the pull rods When the chair back assembly lies down, the chair cushion is driven by the pull rods to move far away from the chair back assembly on the chair cushion guide rail assembly The torsional springs are arranged on the chair back assembly and the connecting assembly and used for returning the chair back assembly which lies down

Multifunctional office chair

The invention discloses a massage office chair capable of manually adjusting massage positions, and belongs to the field of massage chairs. The massage office chair disclosed by the invention comprises a chair frame, a chair seat, a chair back, a left handrail, a right handrail and a massager, wherein the massager is mounted on the chair back through a transverse-longitudinal slipping mechanism; a transverse pulling rope and a longitudinal pulling rope capable of polling the massager transversely and longitudinally are arranged on two sides of the chair frame through pulley blocks respectively; a rest mechanism for driving the massager to reset transversely and a supporting mechanism for supporting the massager transversely are further arranged on the transverse-longitudinal slipping mechanism; the rear part of the left handrail and the rear part of the right handrail are mounted on the chair frame in a rotating manner separately; the transverse pulling rope is connected with the front part of one of the left handrail and the right handrail after bypassing the corresponding pulley block; the longitudinal pulling rope is connected with the front part of the other of the left handrail and the right handrail after bypassing the corresponding pulley block. The adjustment for the massage positions is realized by using the rotation of the left handrail and the right handrail, the adjustment is flexible, the controllability is high, and the massage comfort level is greatly improved; moreover, the massage office chair is smart in structure design and stable and reliable in operation.

Massage office chair capable of manually adjusting massage positions

The invention relates to a gear-shaping clamp, which is fixed on a gear shaper machine tool and comprises a core seat fixed on the gear shaper machine tool, a spherical-surface gasket, an extension-bellow sleeve, a spherical-surface pressing ring and a pull rod, wherein a stepped end is arranged on the core seat, and the spherical-surface gasket is fixed at the stepped end; the upper surface of the stepped end of the core seat extends upwards to form a mandrel, the extension-bellow sleeve penetrates through the spherical-surface gasket and is tightly sleeved on the mandrel, and the extension-bellow sleeve is positioned on the upper surface of the stepped end; and the spherical-surface pressing ring is located at the upper end face of the extension-bellow sleeve, and the pull rod penetrates through the spherical-surface pressing ring and the core seat. The gear-shaping clamp is high in positioning precision, very convenient and rapid for mounting and dismounting a workpiece and long in service life, and has the advantages of increasing the gear shaping precision, shortening the auxiliary time for machining the workpiece and increasing the machining production efficiency.

Gear-shaping clamp

The invention discloses a gear shaping fixture, which comprises a base and a pull rod. The lower end of the base is provided with an annular mounting boss; the mounting boss is provided with a bolt via hole along the axial direction; the top face of the base is a locating face; the pull rod is of a three-section step structure, and is provided with a conical section, a cylindrical section and a threaded section from top to bottom in sequence, wherein the upper part of the conical section is big, and the lower part of the conical section is small; the diameter of the cylindrical section is less than the minimum diameter of the conical section; the cylindrical section penetrates the interior of a center hole of the base; the threaded section is exposed on the bottom face of the base; the conical section of the pull rod is sheathed with an elastic sleeve; the upper end of an inner hole of the elastic sleeve is a conical horn mouth which is adaptive to the conical section; and the circumferential wall of the elastic sleeve is provided with an axial slot (6a). According to the gear shaping fixture disclosed by the invention, the inner hole wall of a gear blank is located through the elastic sleeve, the locating accuracy is high, and eccentricity can be well prevented. Moreover, the gear blank can be conveniently assembled and disassembled and as a gasket in a traditional structure is canceled, a gear shaper cutter can be effectively prevented from being opened, and defects of the traditional structure are well overcome.

Gear shaping fixture

The invention provides a clamping tool for gear shaping of a synchronizer. The clamping tool comprises a body, a conical core structure, a pressing plate and a pull rod; the body comprises a fixing disc and a sleeved inner core, and the sleeved inner core is fixed on the upper surface of the fixing disc and coaxial with the fixing disc; the conical core structure comprises an inner conical core and an inner core sleeve, and is connected to the sleeved inner core in a sleeving mode; the inner conical core is a cone, the upper surface area is smaller than the lower surface area of the inner conical core, and the inner conical core is fixed on the upper surface of the inner core sleeve coaxial with the inner conical core; a through hole coaxial with the pressing plate is formed in the pressing plate, a pressing claw is arranged on the lower surface of the pressing plate, and the pressing plate is arranged on the body; the pull rod comprises a fixing unit and a rod portion, the rod portion is sleeved with the pressing plate and the body in sequence, the upper end of the rod portion is tightly connected with the fixing unit, and the lower end of the rod portion is fixedly connected with a pulling device. Through the movable conical core structure, seamless fit of a workpiece and the inner conical core is achieved, the workpiece is convenient to mount and dismount, scratching of an inner hole of the workpiece is reduced, and manufacturing precision of workpiece outer teeth is greatly improved.

Clamping tool for gear shaping of synchronizer

The utility model relates to a gear shaping fixture which is fixed on a gear shaping machine tool and comprises a mandrel holder fixed on the gear shaping machine tool, a spherical washer, a bellows sleeve, a spherical clamping ring and a draw bar, wherein a stepped end is arranged on the mandrel holder, and the spherical washer is fixed on the stepped end; a mandrel extends upwards from the upper surface of the stepped end of the mandrel, and the bellows sleeve penetrates through the spherical washer to be tightly sheathed on the mandrel and is positioned on the upper surface of the stepped end; and the spherical pressing ring is positioned on the upper end surface of the bellows sleeve, and the draw bar penetrates through the spherical pressing ring and the mandrel holder The gear shaping fixture is high in positioning precision, the gear shaping machining precision is improved, a workpiece is convenient and quick to install and dismantle, auxiliary time for machining the workpiece is shortened, and the machining production efficiency is improved; and the service life of the fixture is long

The utility model discloses a fitness office chair which comprises a chair frame, a chair back assembly, a headrest assembly and handrail assemblies Corresponding portions of the chair frame, the chair back assembly, the headrest assembly and the handrail assemblies are wrapped by sponge and leather The fitness office chair is characterized by further comprising a foot plate, a chair back angle adjusting device and a connecting rod assembly The chair frame is rotatably connected with the chair back assembly, and the chair back angle adjusting device is arranged between the chair back assembly and the chair frame; the upper end of the foot plate is hinged to the upper end of the front portion of the chair frame; the foot plate is connected with the lower portion of the chair back assembly through the corresponding connecting rod assembly; the headrest assembly is fixedly connected onto the upper end of the chair back assembly in inserting mode and can be adjusted up and down; the two handrail assemblies are divided into a left handrail assembly and a right handrail assembly according to positions of the handrail assemblies; the left handrail assembly and the right handrail assembly are rotatably connected onto the left side and the right side of the chair back assembly through torsion assemblies at the rear ends of the left handrail assembly and the right handrail assembly; and corresponding positions of the chair back angle regulating device and the foot plate are wrapped by sponge and leather

Fitness office chair

The utility model discloses a multifunctional office chair which comprises a chair frame, a chair back component, a headrest component and armrest components; and the corresponding parts of the chair frame, the chair back component, the headrest component and the armrest component are wrapped with sponge and leather covering. The multifunctional office chair has the key points that the office chair further comprises a foot plate, a massage component, a chair back angle adjusting device and a connecting rod component; the chair frame and the chair back component are rotationally connected; the chair back angle adjusting device is arranged between the chair frame and the chair back component; the upper end of the foot plate is hinged at the upper end of the front part of the chair frame; the foot plate is connected with the lower part of the chair back component through the corresponding connecting rod component; the headrest component is fixed at the upper end of the chair back component in a plug-in connection manner; the massage component is fixed in the middle of the chair back component in left-right direction; the left side armrest component is rotationally connected to the left side of the chair back component through a torsion component at the rear end of the left side armrest component; the right side armrest component is rotationally connected to the right side of the chair back component through a torsion component at the rear end of the right side armrest component; the armrest components drive the massage component to move accordingly through a corresponding transmission piece; and the corresponding parts of the chair back angle adjusting device, the massage component and the foot plate are wrapped with sponge and leather covering.

The utility model discloses a massage office chair which comprises a chair frame, a chair back assembly, a headrest assembly and handrail assemblies, wherein the corresponding parts of the chair frame, the chair back assembly, the headrest assembly and the handrail assembly are coated by sponge and leather covering The massage office chair is characterized by further comprising a massage assembly and a chair back angle regulating device, wherein the chair frame and the chair back assembly are rotatably connected, and the chair back angle regulating device is arranged; the headrest assembly is inserted and fixed at the upper end of the chair back assembly; the massage assembly is fixed on the middle part of the chair back assembly in the left and right direction; a left side handrail assembly and a right side handrail assembly are respectively rotatably connected to the left side and the right side of the chair back assembly by torsion assembles at the rear ends of the left side handrail assembly and the right side handrail assembly; the handrail assemblies drive the massage assembly to perform corresponding motions through corresponding drive elements, and the neck part of a person is massaged by the massage assembly correspondingly; and the corresponding parts of the chair back angle regulating device and the massage assembly are coated by the sponge and the leather covering

Zhengyuan Zhou

Papers

Gear-shaping clamp

Gear shaping fixture

Fitness office chair

Multifunctional office chair

Massage office chair