CN216627997U

CN216627997U - Hinge device with reset structure

Info

Publication number: CN216627997U
Application number: CN202122539993.8U
Authority: CN
Inventors: 张久智
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2022-05-31
Anticipated expiration: 2031-10-21

Abstract

The present invention relates to a hinge device, and more particularly, to a hinge device having a reset structure, which can be reset when a user excessively adjusts an angle of a device to which the hinge device is mounted. By last installed part, lower installed part, the pivot module is constituteed, its characterized in that, the axis body cross sectional shape of pivot module is polygonal shape, the locking wheel is installed to the axis body of pivot module, the locking wheel is equipped with locking insection, depression bar, the locking module is installed to the installed part down, the locking module includes the block tongue, in the tooth's socket of the one end chucking locking insection of block tongue, the vortex wind spring is installed to the pivot module. The utility model aims to provide a hinge device with a reset structure. When the user excessively adjusts the angle of the hinge device, the pressing rod presses the clamping tongue, so that the locking wheel is not clamped any more, and the hinge device resets under the rebound action of the volute coil spring.

Description

Hinge device with reset structure

Technical Field

The utility model relates to a hinge device, in particular to a hinge device with a reset structure, which can reset automatically when a user excessively adjusts the angle of a device provided with the hinge device.

Background

The headrest is arranged on the backrest of a common seat, in order to meet the use requirements of different users, an angle-adjustable hinge device is arranged between the headrest and the backrest, and the self-locking hinge device can be realized after the angle adjustment is finished, so that the angle of the headrest can be adjusted by a user through a method of directly pulling the headrest, and the self-locking of the hinge device is generally realized through a built-in clamping tongue clamping insection. However, when the angle of the user is excessively adjusted, the user often needs to pull the headrest back with great force when trying to reset the headrest, which is time-consuming, labor-consuming and easy to cause serious abrasion to insections used for fixing the headrest in the hinge device, and leads to the difficulty in angle fixation of the headrest through occlusion of the insections.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a hinge device with a reset structure. When the user excessively adjusts the angle of the device provided with the hinge device, the pressure rod 34 presses the clamping tongue 41, so that the locking wheel 31 is not clamped any more, and the hinge device automatically resets under the rebounding action of the volute coil spring 5.

The utility model provides an articulated mounting device with reset structure, by last installed part 1, lower installed part 2, pivot module 3 constitutes, pivot module 3 will go up installed part 1 and lower installed part 2 cluster together. This hinge assembly can install between the back of seat and headrest, and the person of facilitating the use pulls the headrest, pulls installed part 1 promptly for the contained angle between installed part 1 and the lower installed part 2 changes, thereby lets the headrest be in on the position that suitably uses.

The improved structure is characterized in that the section shape of the shaft body of the rotating shaft module 3 is a polygonal shape, the locking wheel 31 is installed on the shaft body of the rotating shaft module 3, the rotating shaft hole is formed in the upper installation part 1 and matched with the shaft body of the rotating shaft module 3, and the lower installation part 2 is provided with a lower round hole and a hook hole. The purpose of the polygonal shaft body structure is that the swing of the upper mounting part 1 can drive the rotating shaft module 3 to rotate, so as to drive the locking wheel 31 to rotate.

Locking wheel 31 is equipped with and rotates boss 32, locking insection 33, depression bar 34, rotate the lower round hole of installed part 2 under the boss 32 installation, locking wheel 31 is opened has the locking of the axis body matched with pivot module 3 and is changeed hole 321, locking commentaries on classics hole 321, rotation boss 32, pivot hole are coaxial relation, the axis body of pivot module 3 is installed in pivot hole and locking commentaries on classics hole 321, locking insection 33 all establishes the side at locking wheel 31 with depression bar 34. The locking insection 33 can be provided either on one full circle of the side of the locking wheel 31 or only on a small section of the side. The pressing rod 34 may be in the shape of a rod with a small protruding section, or may be in the shape of a hook.

The shapes of the inner side surfaces of the rotating shaft hole matched with the shaft body of the rotating shaft module 3 and the locking rotating hole 321 are consistent with the shape of the outer side surface of the shaft body of the rotating shaft module 3.

Lower installed part 2 comprises installed part, the right side down installed part under the left side, the installed part is mirror symmetry relation with the right side down installed part under the left side, install locking module 4 under a left side between installed part and the right side down the installed part. Locking module 4 includes block tongue 41, in the tooth's socket of one end chucking locking insection 33 of block tongue 41, the other end of block tongue 41 is opened has block tongue to change the hole, locking module 4 is equipped with the block tongue pivot, the block tongue changes the hole and installs in the block tongue pivot, install block tongue spring 44 between block tongue 41 and the locking module 4. The clamping tongue can be provided with a clamping boss matched with the locking insection 33 in shape, and can also be provided with a clamping tongue insection matched with the locking insection 33 in shape, so that the purpose is to effectively limit the rotation of the locking wheel 31 through the clamping locking insection 33, and then limit the swing motion of the upper mounting part 1 through the rotating shaft module 3.

The rotating shaft module 3 is provided with a volute coil spring 5, one end of the inner side of the volute coil spring 5 is arranged in the rotating shaft module 3, and one end of the outer side of the volute coil spring 5 is hooked with the hook hole. The two ends of the rotating shaft module 3 are provided with rotating shaft heads, wherein the rotating shaft heads are provided with countersunk grooves, and one end of the inner side of the volute coil spring 5 is arranged in the countersunk grooves. The function of the volute coil spring 5 is to provide a reset resilience energy storage function, and when the hinge device is reset, the resilience force of the volute coil spring 5 is used as the power for resetting.

The clamping tongue 41 is provided with clamping tongue insections which are matched with the locking insections 33, and the tooth grooves of the locking insections 33 clamped by one end of the clamping tongue 41 are meshed with the locking insections 33. Wherein the one end of the latch 41 that is equipped with the latch insection is an inclined plane, and the latch insection established on this inclined plane can play the effect of very big resistance to the locking insection 33 that turns to anticlockwise, and plays the effect of little resistance to the locking insection 33 that turns to clockwise for the user only can adjust this hinge structure by a single angle of adjustment direction.

Locking module 4 still includes release link 42, release link 42 is equipped with reset groove 421, the lug 422 that resets, resets and changes the hole, depression bar 34 is arranged in reset groove 421, locking module 4 still is equipped with the pivot that resets, it installs in the pivot that resets to reset to change the hole. The reset rod 42 is used for enhancing the function of the pressure rod 34, and the pressing position of the pressure rod 34 on the latch tongue 41 during reset is transferred to a position close to the position where the latch tongue 41 is meshed with the locking insection 33, so that the operation of the latch tongue 41 during reset can be ensured. The pressing rod 34 is disposed in the reset groove 421, when the hinge assembly is swung to adjust the angle, the pressing rod 34 moves from the upper end to the lower end of the reset groove 421, and when the pressing rod 34 continues to swing downward after contacting the bottom surface of the reset groove 421, the pressing rod 42 is pressed, so that the latch 41 is pressed downward, and the latch 41 is not locked to the locking wheel 31.

The edge of locking module 4 is equipped with the locking wall that its terminal surface is the planomural, two terminal surfaces of locking wall respectively with left side down installed part, right side down installed part in close contact with, left side down installed part, locking wall, right side down the installed part constitute a 4 inner chamber structures of sealed locking module jointly. Wherein the left lower mounting part, the locking module 4 and the right lower mounting part are mounted through bolts. The locking wall that is equipped with to and two terminal surfaces of locking wall respectively with left side down installed part, right side down installed part in close contact with, let locking module 4 form a dustproof construction, ensure that inside device is durable.

The section of the shaft body of the rotating shaft module 3 is hexagonal. Namely, the rotating shaft hole and the locking rotating hole 321 which are matched with the shaft body are all in a hexagonal hole shape. The rotating shaft module 3 of the shaft body with the hexagonal prism structure provides a shaft body structure which is not easy to wear and can effectively transfer torsion.

The installed part is equipped with spacing boss down, it is equipped with the stopper to go up the installed part. The limit block and the limit boss are arranged to limit the maximum angle which can be reached by the hinge device in resetting.

Drawings

Fig. 1 is a perspective view of a hinge device having a reset structure according to the present invention.

Fig. 2 is a structural view of a hinge device locking module 4 having a reset structure according to the present invention.

Fig. 3 is a perspective view of a reset lever 42 of a hinge assembly having a reset structure according to the present invention.

Fig. 4 is a perspective view of a locking wheel 31 of a hinge device having a reset structure according to the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, 2, 3, 4: according to the hinge device with the reset structure, based on the direction shown in fig. 2, when a user applies force to the upper mounting part 1, the locking wheel 31 in the locking module 4 rotates anticlockwise under the action of the rotating shaft module 3 to drive the pressing rod 34 to swing downwards, at the moment, the volute coil spring 5 is driven to roll, and the volute coil spring 5 stores energy. When excessive application of force causes the pressing rod 34 to continue to swing downwards at the bottom which is in contact with the reset groove 421, the reset rod 42 is pressed to press the clamping tongue 41 downwards, so that the clamping tongue 41 is not clamped on the locking wheel 31, at the moment, the rotating shaft module 3 does not apply force to the volute coil spring 5 any more, so that the volute coil spring 5 can release energy, the locking wheel 31 rotates clockwise to the limit block arranged on the upper mounting part 1 to impact on the limit boss arranged on the lower mounting part 2, the locking wheel 31 does not rotate any more, the clamping tongue 41 swings upwards under the action of the clamping tongue spring 44 to clamp the locking wheel 31 again, and resetting caused by excessive adjustment of the angle is completed.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims

1. A hinge device with a reset structure comprises an upper mounting part (1), a lower mounting part (2) and a rotating shaft module (3), wherein the rotating shaft module (3) enables the upper mounting part (1) and the lower mounting part (2) to be connected in series,

characterized in that the section of the shaft body of the rotating shaft module (3) is polygonal, the shaft body of the rotating shaft module (3) is provided with a locking wheel (31), the upper mounting piece (1) is provided with a rotating shaft hole which is matched with the shaft body of the rotating shaft module (3), the lower mounting piece (2) is provided with a lower round hole and a hook hole,

the locking wheel (31) is provided with a rotating boss (32), locking insections (33) and a pressure lever (34), the rotating boss (32) is arranged in a lower round hole of the lower mounting part (2), the locking wheel (31) is provided with a locking rotating hole (321) matched with the shaft body of the rotating shaft module (3), the locking rotating hole (321), the rotating boss (32) and the rotating shaft hole are in coaxial relation, the shaft body of the rotating shaft module (3) is arranged in the rotating shaft hole and the locking rotating hole (321), the locking insections (33) and the pressure lever (34) are arranged on the side surface of the locking wheel (31),

the lower mounting piece (2) consists of a left lower mounting piece and a right lower mounting piece, the left lower mounting piece and the right lower mounting piece are in mirror symmetry, a locking module (4) is arranged between the left lower mounting piece and the right lower mounting piece,

the locking module (4) comprises a clamping tongue (41), one end of the clamping tongue (41) is clamped in the tooth groove of the locking insection (33), the other end of the clamping tongue (41) is provided with a clamping tongue rotating hole, the locking module (4) is provided with a clamping tongue rotating shaft, the clamping tongue rotating hole is arranged on the clamping tongue rotating shaft, a clamping tongue spring (44) is arranged between the clamping tongue (41) and the locking module (4),

the rotating shaft module (3) is provided with a volute coil spring (5), one end of the inner side of the volute coil spring (5) is arranged in the rotating shaft module (3), and one end of the outer side of the volute coil spring (5) is hooked with the hook hole.

2. The hinge assembly with the reset structure according to claim 1, wherein the latch tongue (41) is provided with a latch tongue insection, the latch tongue insection is matched with the locking insection (33), and the tooth socket for clamping the locking insection (33) at one end of the latch tongue (41) is realized by the engagement of the latch tongue insection and the locking insection (33).

3. The hinge assembly with the reset structure according to claim 1, wherein the locking module (4) further comprises a reset rod (42), the reset rod (42) is provided with a reset groove (421), a reset protrusion (422) and a reset rotating hole, the pressing rod (34) is disposed in the reset groove (421), the locking module (4) is further provided with a reset rotating shaft, and the reset rotating hole is installed on the reset rotating shaft.

4. The hinge assembly with the reset structure according to claim 1, wherein the edge of the locking module (4) is provided with a locking wall whose end surfaces are flat surfaces, two end surfaces of the locking wall are respectively in close contact with the left lower mounting member and the right lower mounting member, and the left lower mounting member, the locking wall and the right lower mounting member together form a sealed inner cavity structure of the locking module (4).

5. The hinge apparatus having a reset structure according to claim 1, wherein the shaft body of the spindle module (3) has a hexagonal sectional shape.

6. The hinge assembly with a restoring structure according to claim 1, wherein the lower mounting member is provided with a limit boss, and the upper mounting member is provided with a limit block.