A mechanism angle adjustment device and its application

Abstract

The present invention discloses a mechanism angle adjustment device and its application, the mechanism angle adjustment device comprises: an outer ring, an inner ring coaxially arranged with the outer ring, at least one accommodating space is formed between the outer ring and the inner ring; a locking assembly comprises at least one group of rolling bodies and a slider, the rolling bodies are assembled in the accommodating space, and the outer ring or the inner ring is provided with a slider receiving groove; the accommodating space comprises a wedge-shaped area, a group of rolling bodies are arranged on both sides of the slider, and are connected to the slider through a connecting piece; the slider moves in a radial direction, driving at least one group of rolling bodies to enter the limiting end of the wedge-shaped area respectively, thereby locking the relative rotation of the outer ring and the inner ring; on the contrary, the slider drives at least one group of rolling bodies away from the limiting end of the wedge-shaped area, and then releases the lock. The outer ring and the inner ring are locked by the wedging action of the wedge-shaped area on the rolling bodies. The mechanism angle adjustment device of the present invention has the characteristics of small size, small weight, low noise, easy assembly, easy to control rotation, firm structure, high sensitivity, and rapid locking response.

Description

Technical Field

[0001] The invention relates to the technical field of mechanism angle adjustment devices, and in particular to a mechanism angle adjustment device suitable for adjusting the angle of an armrest of a car seat, adjusting the angle of a backrest, and rotating the seat base. Background Art

[0002] At present, the manual mechanism angle adjustment devices of automobile seats at home and abroad are composed of an internal gear ring and a flat gear slider. The flat gear slider has a driving cam or ratchet inside. The structure is complex, and the existence of gaps causes noise in actual operation. The stability is poor, and after long-term use, there will be problems such as shaking and noise, and the locking response is slow.

[0003] In addition, the existing manual angle adjustment device for automobile seats is large in size and heavy in weight, and the torque resistance varies from 2000Nm to 4000Nm according to the performance of the structure and materials. When the torque is designed to 4000Nm, its size, weight and cost will rise sharply, which will put great pressure on the seat system. Summary of the invention

[0004] The present invention provides a mechanism angle adjustment device, which can solve the above-mentioned defects in the prior art.

[0005] The technical solution of the present invention is as follows:

[0006] An outer ring (2), an inner ring (1) coaxially arranged with the outer ring (2), and at least one accommodating space (3) is formed between the outer ring (2) and the inner ring (1);

[0007] A locking assembly (4) for locking or unlocking the relative rotation between the outer ring (2) and the inner ring (1), the locking assembly (4) comprising at least one group of rolling bodies and a slider (41), the group of rolling bodies comprising two rolling bodies (42) axially assembled in the at least one accommodating space (3), the outer ring (2) or the inner ring (1) being provided with a slider receiving groove (21) in the radial direction to allow the slider (41) to move in the radial direction;

[0008] A driving assembly, used for driving the radial movement of the slider (41);

[0009] The accommodating space (3) comprises at least one group of wedge-shaped areas, each group of the wedge-shaped areas comprises two opposite wedge-shaped areas, and the two opposite wedge-shaped areas are arranged on both sides of the slider (41); each of the wedge-shaped areas extends in a circumferential direction, and each of the wedge-shaped areas comprises a limiting end (32), and the size of the limiting end (32) in a radial direction is smaller than the size of the rolling body (42) in a certain area, and the radial space size of the wedge-shaped area increases to exceed the size of the rolling body (42) in a direction away from the limiting end (32) in the circumferential direction;

[0010] The at least one group of rolling bodies (42) are arranged on both sides of the slider (41) and are connected to the slider (41) via connecting members (43) respectively; wherein:

[0011] When the slider (41) moves in the radial direction and drives the at least one group of rolling bodies (42) to enter the limiting ends (32) of the at least one group of wedge-shaped areas, the outer ring (2) and the inner ring (1) are locked so that the two cannot rotate relative to each other;

[0012] When the slider (41) moves in the radial direction and drives the at least one group of rolling bodies (42) away from the limiting end (32) of the at least one group of wedge-shaped areas, the locking of the outer ring (2) and the inner ring (1) is released, and the two can rotate relative to each other.

[0013] The present invention uses the wedging effect of the roller and the wedge-shaped area to achieve the locking or unlocking of the relative rotation of the outer ring and the inner ring. One of the outer ring or the inner ring is fixed and does not rotate. When the roller rolls to the wedge-shaped area, the relative rotation of the outer ring or the inner ring is locked by the wedge surface of the wedge-shaped area, thereby achieving the locking of the outer ring or the inner ring.

[0014] The present invention replaces the existing meshing lock between teeth by locking the rolling body through the wedge-shaped area, and can withstand large torque; the circumferential movement of the rolling body is transmitted through the radial movement of the slider, replacing the existing ratchet or cam-driven flat-tooth slider, simplifying the structure; the rolling body slides in the wedge-shaped area, and a small displacement of the rolling body can achieve locking or unlocking, with high sensitivity, rapid locking response, and can stay in any position. Since the traditional mechanism angle adjustment device adopts the meshing principle for locking, its size will be larger, and after long-term use, the gears will be deformed or even damaged, affecting the unlocking of the mechanism angle adjustment device. The mechanism angle adjustment device of the present invention has the characteristics of small size, light weight, low noise, easy assembly, easy to control rotation, firm structure, the unlocking direction can be designed to be clockwise or counterclockwise, easy to operate, and greater torque resistance than the type of gear meshing transmission.

[0015] Preferably, the side surface of the outer ring (2) is provided with the slider receiving groove (21), and the inner ring (1) is configured as a circular ring; the locking assembly (4) comprises a group of rolling bodies, and the rolling body (42) is configured as a columnar rolling body;

[0016] A supporting wedge block (6) is also provided in the accommodating space (3), and a wedge block assembly groove (22) is provided on the inner circumferential surface of the outer ring (2). One end of the supporting wedge block (6) abuts against the inner ring (1), and the other end is arranged in the wedge block assembly groove (22).

[0017] Further preferably, the material of the supporting wedge block is powder metallurgy, which has a self-lubricating effect, reduces the friction between the inner ring and the supporting wedge block, and reduces noise. In the case where the strength requirement is not high, the supporting wedge block can also be integrally formed with the outer ring.

[0018] Preferably, the inner circumferential surface of the outer ring (2) is provided with a linear plane or an arcuate surface, and the linear plane or the arcuate surface and the outer circumferential surface of the inner ring (1) form the wedge-shaped area.

[0019] The limiting end of the wedge-shaped area is arranged on a side close to the slider, and when the radial dimension of the wedge-shaped area increases in the direction away from the slider, the slider moves away from the axis in the radial direction, drives the group of rolling bodies to approach each other and enter the limiting end of the wedge-shaped area, thereby locking the relative rotation of the outer ring and the inner ring; the slider moves closer to the axis in the radial direction, drives the group of rolling bodies to move away from each other and away from the limiting end of the wedge-shaped area, thereby releasing the lock.

[0020] The limiting end of the wedge-shaped area is arranged at a position away from the slider, and when the radial dimension of the wedge-shaped area increases in a direction approaching the slider, the slider approaches the axis in the radial direction, and the slider drives the group of rolling bodies to move away from each other and enter the limiting end of the wedge-shaped area, thereby locking the relative rotation of the outer ring and the inner ring; the slider moves away from the axis in the radial direction, drives the group of rolling bodies to move towards each other and away from the limiting end of the wedge-shaped area, thereby releasing the lock.

[0021] Preferably, the inner ring (1) is provided with the slider receiving groove (21), and the outer ring (2) is set to be annular; the outer circumference of the inner ring (1) includes at least one straight plane or arc plane, and the accommodating space (3) is formed between the straight plane or the arc plane and the inner circumference of the outer ring (2), and the two ends of the accommodating space (3) form two opposite wedge-shaped areas of the group of wedge-shaped areas.

[0022] Preferably, an elastic element is provided in the radial direction of the slider (41) and is disposed in the slider receiving groove (21). The elastic element is used for resetting the slider during radial movement, and the elastic element can be a compression spring.

[0023] Preferably, the number of the locking assemblies (4) is set to 2-15 groups, the wedge-shaped areas are arranged in a manner adapted to the locking assemblies (4), and the supporting wedge blocks (6) are arranged between two adjacent groups of the wedge-shaped areas.

[0024] Preferably, the sliding blocks (41) are evenly arranged along the outer ring (2).

[0025] The locking components and supporting wedge blocks are evenly arranged, so that the locking components, outer ring, and inner ring are subjected to uniform force. At the same time, in the application scenario of small torque load, the number of the locking components can be set to a small number, such as one group, two groups, etc.; when the torque load is large, the number of the locking components is designed to be three groups, four groups, five groups, six groups or more groups. The more the number of the locking components, the greater the torque carried.

[0026] Preferably, the driving assembly comprises an unlocking disk (7) disposed on one side of the slider (41), a pin shaft (411) being disposed on the side of the slider (41), and correspondingly, a slide groove (71) for accommodating the pin shaft (411) being disposed on the side of the unlocking disk (7), and the slide groove (71) is arranged at an angle with the radial direction; an elastic reset member (8) for resetting the unlocking disk (7), disposed on a side of the unlocking disk (7) away from the slider (41), one end of the elastic reset member (8) being connected to the outer ring (2) or the inner ring (1), and the other end being connected to the unlocking disk (7).

[0027] The unlocking disk rotates, driving the slider to slide toward the axis, and the elastic reset member undergoes elastic deformation; the unlocking disk stops rotating, and the elastic reset member recovers its deformation, driving the unlocking disk to reset, and the slider moves away from the axis.

[0028] Preferably, the elastic return member can be set as a coil spring; in a scenario where the strength requirement is not high, the elastic return member can be set as a torsion spring. The torsion spring is more economical, and the coil spring has a stronger elastic return ability. The selection can be made according to actual needs and is not limited here.

[0029] Preferably, an axial positioning member is further included, the axial positioning member includes an axial body, and a first fixed end and a second fixed end provided at both ends of the axial body, the first fixed end fixes the driving disk, the axial body is passed through the inner ring and the outer ring, and the inner ring and the outer ring are fixed by the second fixed end. The axial positioning member is used to axially position the mechanism angle adjustment device to prevent axial displacement of various components.

[0030] Preferably, the first fixed end is detachably connected to or integrally formed with the driving disk, and the second fixed end includes an annular groove provided at the end of the axial body, and a retaining ring adapted to the annular groove, and the cooperation between the annular groove and the retaining ring realizes fixation.

[0031] The present invention also provides a clutch comprising any of the above-mentioned mechanism angle adjustment devices.

[0032] The present invention also provides a seat comprising any of the above-mentioned mechanical angle adjustment devices.

[0033] Preferably, the seat comprises: a seat back wing (100) fixedly connected to the inner ring (1); a seat cushion side plate (200) fixedly connected to the outer ring (2); and a manipulation module connected to the drive assembly. The inner ring of the mechanism angle adjustment device is set as a flange, the flange is fixed to the seat back wing, and the outer ring is fixed to the seat cushion side plate. The manipulation module drives the drive assembly to rotate, the slider moves in the radial direction, drives the group of rolling bodies away from the limiting end of the wedge-shaped area, releases the lock on the inner ring, the outer ring and the inner ring can rotate relative to each other, and the seat back can adjust the angle to any position. The manipulation module drives the drive assembly to reset, drives the group of rolling bodies to enter the limiting end of the wedge-shaped area, the outer ring, the flange and the rolling bodies are locked with each other, thereby locking the relative rotation of the outer ring and the inner ring, thereby fixing the seat back.

[0034] The locking is achieved through the wedging action between the rolling body and the wedge-shaped area, which solves the problem of meshing and locking of teeth in the traditional seat mechanism angle adjustment device, which is not firmly locked; after long-term use, the teeth of the gear or ratchet will be damaged, which will affect the adjustment of the seat back, and will produce loud noise, affecting the user experience. In addition, due to the limitation of the meshing locking principle, the size of the traditional mechanism angle adjustment device is large. Locking and unlocking through the rolling body has a simple structure, firm locking, easy control, and small size. The slight displacement of the rolling body can achieve unlocking, with higher sensitivity, and can be unlocked without much effort, which can bring a better user experience.

[0035] Preferably, the seat comprises a seat back wing (100) fixedly connected to the inner ring (1); a seat armrest fixedly connected to the outer ring (2); and a manipulation module connected to the drive assembly. The manipulation module drives the drive assembly to rotate, and the group of rolling bodies move away from the limiting end of the wedge-shaped area, releasing the lock on the outer ring, and the armrest can adjust the angle to any position. The manipulation module drives the drive assembly to reset, and the outer ring is locked by the rolling bodies, thereby fixing the armrest. After unlocking, the seat armrest can hover at any position, and is firmly locked and will not loosen; the locking by the rolling body and the wedge-shaped area reduces noise, has high sensitivity, and saves more effort when unlocking.

[0036] Preferably, the seat body (700) and the fixing member (800); the inner ring (1) is fixedly connected to the seat body (700), and the outer ring (2) is fixedly connected to the fixing member (800); and the operating module is connected to the driving assembly. The inner ring of the mechanism angle adjustment device is set as a flange, and the flange is fixed on the seat body. The operating module drives the driving assembly to rotate, and the group of rolling bodies move away from the limiting end of the wedge-shaped area to release the lock on the inner ring, so that the seat body can rotate 360 ​​degrees to any position. The operating module drives the driving assembly to reset, and the inner shaft of the flange is locked by the rolling body, thereby fixing the seat body.

[0037] Preferably, it also includes a slide rail (900) fixedly connected to an external device, and the fixing member (800) is slidably connected to the slide rail (900). Such a structure enables the seat to slide along the slide rail and rotate 360 ​​degrees, enriching the functions of the seat and meeting more customer needs.

[0038] Preferably, the control module comprises a sliding stopper (102) fixed to the seat and a button body (108); the button body (108) is provided with a stopper receiving groove (107), the button body (108) is slidably connected to the sliding stopper (102) via the stopper receiving groove (107), the sliding stopper (102) is connected to the driving assembly via a cable (103); the two ends of the stopper receiving groove (107) along the sliding direction are provided with return springs. Such a structure enables the button to be unlocked when pressed or pulled upward, making it more convenient and flexible to use.

[0039] The control module may also be configured as a control handle or a knob, which is not limited here.

[0040] A car comprising any one of the seats described above.

[0041] Compared with the prior art, the present invention has the following beneficial effects:

[0042] First, the present invention uses the wedging action of the rolling body and the wedge-shaped area to achieve the locking or unlocking of the relative rotation of the outer ring and the inner ring; the locking of the rolling body by the wedge-shaped area replaces the existing meshing lock between teeth and can withstand large torque; the circumferential movement of the rolling body is transmitted to the radial movement of the slider, which replaces the existing ratchet or cam-driven flat-tooth slider and simplifies the structure; through the cooperation of the rolling body and the wedge-shaped area, a small displacement of the rolling body can achieve locking or unlocking, with high sensitivity, rapid locking response, and the ability to stay at any position.

[0043] Second, the mechanical angle adjustment device of the present invention has the characteristics of small size, light weight, low noise and easy assembly; it is easy to control the rotation, has a firm structure, the unlocking direction can be designed to be clockwise or counterclockwise, is easy to operate, and has greater torque resistance than the type of gear meshing of the transmission.

[0044] Third, the unlocking button of the present invention can be operated upward to unlock, and can also be pressed downward to unlock. Compared with traditional buttons or knobs, it is easier to operate and more flexible.

[0045] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 is a schematic structural diagram of a mechanism angle adjustment device according to Embodiment 1 of the present invention;

[0047] Figure 2 is another structural schematic diagram of the mechanism angle adjustment device of Example 1 of the present invention;

[0048] Figure 3 It is a schematic diagram of the exploded structure of the mechanism angle adjustment device of Example 1 of the present invention;

[0049] Figure 4 is another exploded structural schematic diagram of the mechanism angle adjustment device of Example 1 of the present invention;

[0050] Figure 5 It is another exploded structural schematic diagram of the mechanism angle adjustment device of Example 1 of the present invention;

[0051] Figure 6 is another exploded structural schematic diagram of the mechanism angle adjustment device of embodiment 1 of the present invention;

[0052] Figure 7 is a schematic diagram of the exploded structure of another mechanism angle adjustment device of embodiment 1 of the present invention;

[0053] Figure 8 is a schematic structural diagram of a positioning member according to Embodiment 1 of the present invention;

[0054] Fig. 9 1 is a schematic structural diagram of a mechanism angle adjustment device assembly with a torsion spring according to Embodiment 1 of the present invention;

[0055] Fig.10 is another structural schematic diagram of the mechanism angle adjustment device assembly with a torsion spring according to Embodiment 1 of the present invention;

[0056] Fig.11 It is a partial structural schematic diagram of the mechanism angle adjustment device of Example 1 of the present invention;

[0057] Fig.12 1 is a schematic structural diagram of a mechanism angle adjustment device assembly with a coil spring according to Embodiment 1 of the present invention;

[0058] Fig.13 is another structural schematic diagram of the mechanism angle adjustment device assembly with a coil spring according to Embodiment 1 of the present invention;

[0059] Fig.14 It is a partial structural schematic diagram of the mechanism angle adjustment device of Example 2 of the present invention;

[0060] Fig.15 is a schematic diagram of the seat structure of embodiment 3 of the present invention;

[0061] Fig.16 is a schematic diagram of the chair armrest structure of embodiment 4 of the present invention;

[0062] Fig.17 is a schematic diagram of the seat structure of embodiment 5 of the present invention;

[0063] Fig.18 is another structural schematic diagram of a seat according to Embodiment 5 of the present invention;

[0064] Fig.19 It is another structural schematic diagram of the seat of embodiment 5 of the present invention.

[0065] Reference numerals: inner ring 1, outer ring 2, accommodating space 3, locking assembly 4, slider 41, rolling element 42, slider receiving groove 21, wedge area 31, limiting end 32, connecting member 43, wedge block assembly groove 22, supporting wedge block 6, unlocking plate 7, pin 411, slide groove 71, elastic reset member 8, positioning end 81, hook 82, round table 72, limiting groove 721, first hook pin 23; positioning shaft 9, annular groove 91, snap ring 10, annular disk surface 11, positioning shaft body 9 0, fixed end 92, latch 921, second latching slot 73, second hook pin 74, seat back side wing 100, cushion side panel 200, operating handle 300, assembly hole 93, connecting rod 400, button body 108, sliding limit member 102, limit member accommodating groove 107, cable 103, first return spring 105, second return spring 106, bushing 111, second latching pin 109, pawl 104, seat body 700, fastener 800, slide rail 900. DETAILED DESCRIPTION

[0066] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of protection of the present invention. Improvements and adjustments made by those skilled in the art in practical applications according to the present invention still belong to the scope of protection of the present invention.

[0067] Example 1

[0068] This embodiment provides a mechanism angle adjustment device, comprising: an inner ring 1, an outer ring 2 coaxially arranged with the inner ring 1, and a containing space 3 formed between the inner ring 1 and the outer ring 2; a locking assembly 4, used to lock or unlock the relative rotation between the outer ring 2 and the inner ring 1. The locking assembly 4 comprises at least one group of rolling bodies and a slider 41, wherein the group of rolling bodies comprises two rolling bodies 42, which are arranged in the containing space 3, and a slider receiving groove 21 is provided in the radial direction of the outer ring 2 or the inner ring 1, allowing the slider 41 to move radially; a driving assembly, used to drive the radial movement of the slider 41;

[0069] The accommodation space 3 includes at least one set of wedge-shaped areas 31, and the set of wedge-shaped areas 31 includes two wedge-shaped areas, and the two wedge-shaped areas are relatively arranged on both sides of the slider 41; each of the wedge-shaped areas extends along the circumferential direction, and includes a limiting end 32, and the size of the limiting end 32 along the radial direction is smaller than the size of the rolling body 42 in a certain area, and the radial space size of the wedge-shaped area increases to exceed the radial size of the rolling body 42 in the direction away from the limiting end 32 along the circumferential direction;

[0070] The group of rolling bodies 42 are disposed on both sides of the slider 41 and are connected to the slider 41 through connecting members 43 respectively;

[0071] The slider 41 moves in the radial direction, driving the group of rolling bodies 42 to lock the relative rotation between the outer ring 2 and the inner ring 1 when they approach the limiting end 32 in the circumferential direction within the wedge-shaped area; and the outer ring 2 and the inner ring 1 are unlocked when the rolling bodies 42 move away from the limiting end 32 in the circumferential direction within the wedge-shaped area.

[0072] This embodiment takes the wedge-shaped area 31 and the locking assembly 4 as an example to introduce the mechanism angle adjustment device. Figure 1-12 The inner ring 1 is set as a circular ring, and the outer ring 2 is coaxially arranged outside the outer circumference of the inner ring 1. The inner circumferential surface of the outer ring 2 is provided with a wedge block assembly groove 22, one end of the supporting wedge block 6 is stopped against the inner ring 1, and the other end is assembled in the wedge block assembly groove 22. The supporting wedge block 6 is staggered with the locking assembly 4. The supporting effect of the supporting wedge block 6 forms an annular storage space 3 between the inner ring 1 and the outer ring 2, which can reduce the noise generated when the inner ring 1 rotates.

[0073] Preferably, the material of the supporting wedge block 6 is powder metallurgy, which has a self-lubricating effect and reduces friction. In the case where the strength requirement is not high, the supporting wedge block 6 can also be integrally formed with the outer ring 2.

[0074] In this embodiment, the inner circumference of the outer ring 2 is located near the two sides of the slider 41 and is set as a linear plane, and the linear plane and the outer circumference portion corresponding to the inner ring 1 form the wedge-shaped area. At this time, the limiting end 32 of the wedge-shaped area is close to the slider 41.

[0075] In another optional embodiment, the linear plane is arranged at a position close to the supporting wedge block 6, and the wedge-shaped area is formed on both sides of the supporting wedge block 6; in this case, the limiting end 32 of the wedge-shaped area is close to the supporting wedge block 6. With such a structure, when the slider 41 moves close to the axis, it drives the group of rolling bodies 42 to move away from each other and enter the wedge-shaped area, thereby locking the relative rotation between the outer ring 2 and the inner ring 1; when the slider 41 moves away from the axis, the group of rolling bodies 42 move close to each other and away from the wedge-shaped area, thereby releasing the lock on the outer ring 2 and the inner ring 1.

[0076] The side surface of the outer ring 2 is evenly provided with three slider receiving grooves 21 along the circumferential direction. The slider 3 is assembled in the slider receiving groove 21. Three groups of wedge-shaped areas are evenly provided in the accommodating space 3. The rolling body 42 is arranged in one group of the wedge-shaped areas 31.

[0077] Specifically, considering symmetry and uniform distribution of force, the locking assembly 4 and the supporting wedge block 6 should be evenly arranged along the circumference of the accommodating space 3. In the application scenario of small torque, the locking assembly 4 can be set as one group or two groups; for large torque load, the locking assembly 4 is set as three groups or more. The number of the wedge-shaped areas 31 is not used to limit the protection scope of the present invention, and can be set according to the actual torque requirements. The locking assembly 4 is set in a manner adapted to the wedge-shaped area 31.

[0078] In this embodiment, the size and dimensions of the rolling bodies 42 are equal, and mold opening is easy; the rolling bodies 42 are connected to the slider 41 through a rigid connecting piece 43, such as a steel wire connecting rod or a plastic connecting rod, so that the movement state of the slider 1 is transmitted to the group of rolling bodies 42.

[0079] In this embodiment, when the slider 41 moves away from the axis, the group of rolling bodies 42 approach each other and enter the wedge-shaped area, and the rolling bodies 42 are locked by the wedge-shaped surface, thereby locking the relative rotation of the inner ring 1. When the slider 41 moves away from the axis, it pushes the group of rolling bodies 42 away from each other and away from the wedge-shaped area, releasing the lock, and the inner ring 1 can rotate relatively.

[0080] Further, see Figure 1 The slider receiving groove 21 is also provided with an elastic element 10, such as a compression spring, which is arranged at one end close to the axis and is used for resetting the slider 41 when it moves close to the axis.

[0081] Further, see Figure 3-6 The driving assembly includes an unlocking plate 7, which is arranged on one side of the slider 41; a pin shaft 411 is arranged on the side of the slider 41, and correspondingly, a slide groove 71 for accommodating the pin shaft 411 is arranged on the side of the unlocking plate 7, and the slide groove 71 is arranged at an angle with the radial direction;

[0082] An elastic return member 8 is provided on a side of the unlocking disk 7 away from the slider 41 and is used for resetting the unlocking disk 7 ; one end of the elastic return member 8 is connected to the outer ring 2 or the inner ring 1 , and the other end is connected to the unlocking disk 7 .

[0083] When the unlocking plate 7 rotates, the pin shaft 411 slides in the slide slot 71, thereby driving the slider 41 to move radially. As shown in the figure, when the unlocking plate 7 rotates clockwise, the slider 41 moves radially close to the axis, and when the unlocking plate 7 rotates counterclockwise, the slider 41 moves radially away from the axis.

[0084] In this embodiment, the elastic reset member 8 is configured as a coil spring. Figure 5 The inner end of the coil spring 8 is bent toward the axis to form a positioning end 81, and the outer end of the coil spring 8 is bent to form a hook 82. The unlocking plate 7 is provided with a truncated cone 72 on the side away from the slider 41, and a limiting groove 721 is provided on the circumferential side of the truncated cone 72 facing the center of the circle, and an axial first hook pin 23 is provided on the side of the outer ring 1; the positioning end 81 is provided in the limiting groove 721 of the truncated cone 72, and the hook 82 is clamped on the first hook pin 23.

[0085] In this embodiment, the unlocking disk 7 further includes a positioning shaft 9 for axial positioning, see Figure 6 The end of the positioning shaft 9 is provided with an annular groove 91 along the circumferential direction, and also includes a snap ring 10 adapted to the annular groove 91. The side of the inner ring 1 is connected with an annular disk surface 11, which is axially positioned with the positioning shaft 9. The positioning shaft 9 is penetrated by the outer ring 2 and the inner ring 1, and the annular groove 91 is engaged with the snap ring 10 outside the annular disk surface 11 of the inner ring 1, thereby realizing the axial positioning of the inner ring 1, the outer ring 2 and the unlocking disk 7.

[0086] In this embodiment, the positioning shaft 9 is integrally formed with the unlocking disk 7 and is disposed on the same side as the sliding groove 71 .

[0087] In another optional embodiment, the positioning shaft 9 includes an axially extending positioning shaft body 90, see Figure 7 , Figure 8One end of the axially extending positioning shaft body 90 is provided with an annular groove 91, and the other end is provided with a fixed end 92, and the fixed end 92 is provided with a bayonet 921 along the circumferential direction; the unlocking disk 7 is provided with a through hole, and the through hole is circumferentially provided with a second bayonet groove 73 adapted to the bayonet pin 921, the positioning shaft body 90 of the positioning shaft 9 passes through the through hole of the unlocking disk 7, and the bayonet pin 921 circumferentially of the fixed end 92 cooperates with the second bayonet groove 73 of the unlocking disk 7, thereby fixing the positioning shaft 9.

[0088] Furthermore, the fixed end 92 of the positioning shaft 9 extends out of the unlocking disk 7; the elastic reset member 8 is configured as a torsion spring, see Fig. 9 A second axial hook pin 74 is provided on the side of the unlocking disk 7, the torsion spring is sleeved on the fixed end 92, one end hook 81 of the torsion spring is sleeved on the first hook pin 23 of the outer ring 2, and the other end hook 82 of the torsion spring is sleeved on the second hook pin 74.

[0089] The structure that the positioning shaft 9 and the unlocking disk 7 are separated reduces the difficulty of mold opening, and the elastic reset member 8 is a torsion spring, which is more economical and reduces the cost.

[0090] In this embodiment, the inner ring 1, the outer ring 2, the locking assembly 4, the unlocking disk 7, and the elastic reset member 8 together constitute the mechanism angle adjustment device assembly. Figure 9-13 As shown, it can be used to lock circumferential motion.

[0091] Example 2

[0092] This embodiment provides another implementation of the mechanism angle adjustment device, whose structure is similar to that of the embodiment 1, except that the outer ring 2 is set to be annular, and the inner ring 1 is inscribed in the outer ring 2, see Fig.14 The accommodating space 3 is formed between the circumferential straight edge of the inner ring 1 and the outer ring 2, and is used to accommodate the group of rolling elements 42. The circumferential straight edge of the inner ring 1 and the inner circumferential surface of the outer ring 2 form wedge-shaped areas at both ends of the accommodating space 3. The group of rolling elements 42 are disposed at both ends of the accommodating space 3, and when located in the wedge-shaped areas, the outer ring 2 and the inner ring 1 are locked.

[0093] In this embodiment, the inner ring 1 is provided with the slider receiving groove 21 , and the slider 41 is disposed in the slider receiving groove 21 of the inner ring 1 .

[0094] In this embodiment, when the slider 41 moves away from the axis, it drives a group of rolling bodies 42 of the locking assembly 4 to move away from each other and enter the wedge-shaped areas at both ends of the accommodating space 3, and the outer ring 2 is locked by the wedge-shaped surface under the action of the rolling bodies 42; when the slider 41 moves close to the axis, it drives a group of rolling bodies 42 of the locking assembly 4 to move close to each other and away from the wedge-shaped areas at both ends of the accommodating space 3, thereby releasing the lock on the outer ring 2.

[0095] Example 3

[0096] This embodiment provides an application of the mechanism angle adjustment device described in Embodiment 1 on a car seat.

[0097] In this embodiment, the automobile seat comprises a seat back side wing 100 and a seat cushion side panel 200. Fig.15 The inner ring of the mechanism angle adjustment device is set as a flange, the annular disk surface 11 of the inner ring is fixed to the seat back wing 100, and the outer circumference of the outer ring 2 is fixed to the seat cushion side plate 200. It also includes a manipulation handle 300 connected to the unlocking disk 7. The manipulation handle 300 is rotated to drive the unlocking disk 7 to rotate, and the unlocking disk 7 drives the slider 1 to move radially, and the slider 1 drives a group of rolling bodies 42 of the locking assembly 4 away from the limiting end of the wedge-shaped area, thereby releasing the lock of the inner ring 1, and the seat back wing 100 can rotate, thereby adjusting the angle of the seat back. The manipulation handle 300 is reset, driving a group of rolling bodies 42 of the locking assembly 4 to enter the limiting end of the wedge-shaped area, and the inner ring 1 is locked by the wedge surface of the wedge-shaped area under the action of the rolling body 42, thereby fixing the seat back so that it cannot rotate.

[0098] In this embodiment, the positioning shaft 9 of the mechanism angle adjustment device includes an axially arranged assembly hole 93, and the outer side of the mechanism angle adjustment device is connected to the operating handle 300 through the assembly hole 93. The seat back side wings 100 on both sides of the automobile seat are both installed with the mechanism angle adjustment device, and the mechanism angle adjustment devices of the seat back side wings 100 on both sides of the seat are connected by a connecting rod 400, and the connecting rod 400 is installed in the assembly hole 93 of the positioning shaft 9, so that the seat back side wings 100 on both sides of the seat are linked.

[0099] When the mechanism angle adjustment device of Example 2 is applied to the automobile seat of this embodiment, the inner ring 1 is fixedly connected to the seat back side wing 100 through a rotating shaft, and the outer ring 2 is fixedly connected to the seat cushion side panel 200 .

[0100] Under normal circumstances, the angle adjustment device of the mechanism is in a normally locked state, so that the seat back is fixed at a fixed angle. When the seat back angle needs to be adjusted, the seat back can be adjusted to any angle by operating the external operating handle and unlocking it. After the operating handle is reset, it will return to the normally locked state.

[0101] Example 4

[0102] This embodiment provides another application scenario of the mechanism angle adjustment device described in Embodiment 1 in a car seat.

[0103] In this embodiment, the automobile seat comprises a seat back side wing and a seat armrest 101 , the outer ring 2 is fixedly connected to the seat back side wing, and the inner ring 1 is fixedly connected to the seat armrest 101 .

[0104] Under normal circumstances, the mechanism angle adjustment device is in a normally locked state. The operating module drives the unlocking disk 7, and the unlocking disk 7 drives the slider 1 to move radially. The slider 1 drives a group of rolling bodies 42 of the locking assembly 4 away from the limiting end of the wedge-shaped area, and the inner ring 1 can rotate relative to the outer ring 2, and the seat armrest can be raised or lowered to a comfortable position; the operating handle is reset, and a group of rolling bodies 42 of the locking assembly 4 enter the limiting end of the wedge-shaped area. The inner ring 1 is locked by the wedge surface of the wedge-shaped area under the action of the rolling bodies 42, thereby locking the seat armrest.

[0105] For details, see Fig.16 The control module includes a button body 108 and a sliding stopper 102 fixed to the seat armrest 101, the button body 108 is provided with a stopper accommodating groove 107, the button is slidably connected to the sliding stopper 102 through the stopper accommodating groove 107, and the button body 108 is connected to the unlocking plate 7 through a cable 103. A first return spring 105 and a second return spring 106 are provided at two ends of the stopper accommodating groove 107 along the sliding direction.

[0106] Furthermore, a first engaging pin is provided on the outer side of the unlocking disk 7, a sleeve 111 is provided on the outer side of the button body 108 at one end of the cable 103, and the cable 103 is connected to the first engaging pin of the unlocking disk 7 through the sleeve 111. A second engaging pin 109 is provided on the other end of the cable 103, and two opposite protruding claws 104 are provided on the outer side of the button, and the two protruding claws 104 fix the second engaging pin 109 to the button body 108.

[0107] When the button body 108 of the present embodiment is pressed, the button body 108 pulls the cable 103 to move toward the button body 108 , driving the unlocking disk 7 to rotate, and the button is released, and the first reset spring 105 drives the button body 108 to reset.

[0108] The button body 108 of this embodiment can also be pulled upward to unlock. Compared with the traditional push-type button, the operation mode of the button is enriched to meet more needs.

[0109] Example 5

[0110] This embodiment provides another application scenario of the mechanism angle adjustment device described in Embodiment 1 in a car seat.

[0111] Specifically, the car seat includes a seat body 700, an annular disk surface 11 of the inner ring 1 of the mechanism angle adjustment device is fixedly connected to the seat body 700, and an outer ring 2 of the mechanism angle adjustment device is fixedly connected to the car through a fixing member 800, see Figure 17-19 The external operating module drives the driving disk 7, and the unlocking disk 7 drives the slider 1 to move radially. The slider 1 drives a group of rolling bodies 42 of the locking assembly 4 away from the limiting end of the wedge-shaped area, and the inner ring 1 can rotate relative to the outer ring 2, and the seat body 700 can rotate freely. The operating module returns, and a group of rolling bodies 42 of the locking assembly 4 enter the limiting end of the wedge-shaped area. The inner ring 1 is locked by the wedge surface of the wedge-shaped area under the action of the rolling bodies 42, thereby locking the seat body 700.

[0112] Furthermore, the fixing member 800 is slidably connected to the automobile, a slide rail 900 is provided in the automobile, and the seat body 700 can slide along the slide rail 900 .

[0113] The seat body of this embodiment can rotate 360 ​​degrees around the fastening member after being unlocked to meet more customer needs. After the fastening member 800 is connected to the slide rail, the seat body can also slide along the slide rail 900, enriching the functions of the car seat.

[0114] Examples 3-5 only take car seats as an example to illustrate the application of the mechanism angle adjustment device of Examples 1 and 2 on seats. It should be noted that the mechanism angle adjustment device of Examples 1 and 2 is also applicable to the angle adjustment of seats in the field of life and seat backs, armrests or seat bodies of trains, high-speed trains, airplanes, etc., and will not be described in detail here.

[0115] Example 6

[0116] This embodiment provides an application of the mechanism angle adjustment device described in Example 1 in an axial connection. The mechanism angle adjustment device of the present invention can simultaneously achieve clockwise and counterclockwise locking. The inner ring 1 is connected to the input shaft, the outer ring 2 is connected to the output shaft, the group of rolling elements is driven by a drive assembly, and the drive assembly is connected to an external unlocking module.

[0117] When the input torque of the input shaft is greater than the set torque value, the mechanism angle adjustment device of Example 1 can be easily and quickly unlocked, so that the input shaft and the output shaft are quickly disconnected, thereby protecting the equipment at the lower end of the output shaft.

[0118] The above disclosure is only the preferred embodiment of the present invention. The preferred embodiment does not describe all the details in detail, nor does it limit the invention to the specific implementation method described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can make good use of the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A mechanism angle adjustment device, characterized in that: include: An outer ring (2), an inner ring (1) coaxially arranged with the outer ring (2), and at least one accommodating space (3) is formed between the outer ring (2) and the inner ring (1); A locking assembly (4) for locking or unlocking the relative rotation between the outer ring (2) and the inner ring (1), the locking assembly (4) comprising at least one group of rolling bodies and a slider (41), the group of rolling bodies comprising two rolling bodies (42) axially assembled in the at least one accommodating space (3), the outer ring (2) or the inner ring (1) being provided with a slider receiving groove (21) in the radial direction, the slider (41) being assembled in the slider receiving groove (21), and the slider receiving groove (21) allowing the slider (41) to move radially; A driving assembly, used for driving the radial movement of the slider (41); The accommodating space (3) comprises at least one group of wedge-shaped areas, each group of the wedge-shaped areas comprises two opposite wedge-shaped areas, and the two opposite wedge-shaped areas are arranged on both sides of the slider (41); each of the wedge-shaped areas extends in a circumferential direction, and each of the wedge-shaped areas comprises a limiting end (32), and the size of the limiting end (32) in a radial direction is smaller than the size of the rolling body (42) in a certain area, and the radial space size of the wedge-shaped area increases to exceed the size of the rolling body (42) in a direction away from the limiting end (32) in the circumferential direction; The at least one group of rolling bodies (42) are arranged on both sides of the slider (41) and are connected to the slider (41) via connecting members (43) respectively; wherein: When the slider (41) moves in the radial direction and drives the at least one group of rolling bodies (42) to enter the limiting ends (32) of the at least one group of wedge-shaped areas, the outer ring (2) and the inner ring (1) are locked so that the two cannot rotate relative to each other; When the slider (41) moves in the radial direction and drives the at least one group of rolling bodies (42) away from the limiting end (32) of the at least one group of wedge-shaped areas, the locking of the outer ring (2) and the inner ring (1) is released, and the two can rotate relative to each other.

2. The mechanism angle adjustment device according to claim 1, characterized in that: The side surface of the outer ring (2) is provided with the slider receiving groove (21), and the inner ring (1) is set to be annular; the locking assembly (4) includes a group of rolling bodies, and the rolling body (42) is set to be a columnar rolling body; A supporting wedge block (6) is also provided in the accommodating space (3), and a wedge block assembly groove (22) is provided on the inner circumferential surface of the outer ring (2). One end of the supporting wedge block (6) abuts against the inner ring (1), and the other end is assembled in the wedge block assembly groove (22).

3. The mechanism angle adjustment device according to claim 2, characterized in that: The inner circumferential surface of the outer ring (2) is provided with a linear plane or an arcuate surface, and the linear plane or the arcuate surface and the outer circumferential surface of the inner ring (1) form the wedge-shaped area.

4. The mechanism angle adjustment device according to claim 1, characterized in that: The inner ring (1) is provided with the slider receiving groove (21), and the outer ring (2) is set to be annular; the outer circumference of the inner ring (1) includes at least one straight plane or arc plane, and the accommodating space (3) is formed between the straight plane or the arc plane and the inner circumference of the outer ring (2), and the two ends of the accommodating space (3) form two opposite wedge-shaped areas of the group of wedge-shaped areas.

5. The mechanism angle adjustment device according to claim 1, characterized in that: An elastic element is provided in the radial direction of the slider (41) and is arranged in the slider receiving groove (21).

6. The mechanism angle adjustment device according to claim 2, characterized in that: The number of the locking assemblies (4) is set to 2-15 groups, the wedge-shaped areas are arranged in a manner adapted to the locking assemblies (4), and the supporting wedge blocks (6) are arranged between two adjacent groups of the wedge-shaped areas.

7. The mechanism angle adjustment device according to claim 6, characterized in that: The sliding blocks (41) are evenly arranged along the outer ring (2).

8. The mechanism angle adjustment device according to claim 1, characterized in that: The driving assembly comprises: An unlocking plate (7) is arranged on one side of the slider (41), a pin shaft (411) is arranged on the side of the slider (41), and correspondingly, a sliding groove (71) for accommodating the pin shaft (411) is arranged on the side of the unlocking plate (7), and the sliding groove (71) is arranged at an angle with the radial direction; An elastic reset member (8) is used for resetting the unlocking disk (7) and is arranged on a side of the unlocking disk (7) away from the slider (41). One end of the elastic reset member (8) is connected to the outer ring (2) or the inner ring (1), and the other end is connected to the unlocking disk (7).

9. The mechanism angle adjustment device according to claim 8, characterized in that: It also includes an axial positioning member, which includes an axial body, and a first fixed end and a second fixed end arranged at both ends of the axial body, the first fixed end fixes the unlocking disk (7), the axial body is passed through the inner ring (1), and is fixed on one side of the inner ring (1) by the second fixed end.

10. The mechanism angle adjustment device according to claim 9, characterized in that: The first fixed end is integrally formed with the unlocking disk (7) or is detachably connected thereto, and the second fixed end comprises an annular groove (91) arranged circumferentially at the end of the axial body, and a retaining ring (10) adapted to the annular groove (91), wherein the annular groove (91) and the retaining ring (10) cooperate to achieve fixation.

11. A clutch comprising the mechanism angle adjustment device as claimed in any one of claims 1 to 10.

12. A seat comprising the mechanical angle adjustment device as claimed in any one of claims 1 to 10.

13. The seat according to claim 12, characterized in that include, A seat back wing (100) fixedly connected to the inner ring (1); A cushion side plate (200) fixedly connected to the outer ring (2); The operating module is connected with the driving component.

14. The seat according to claim 12, characterized in that include, A seat back wing (100) fixedly connected to the inner ring (1); A seat armrest, fixedly connected to the outer ring (2); The operating module is connected with the driving component.

15. The seat according to claim 12, characterized in that include, A seat body (700) and a fastening member (800); The inner ring (1) is fixedly connected to the seat body (700), and the outer ring (2) is fixedly connected to the fixing member (800); The operating module is connected with the driving component.

16. The seat according to claim 15, characterized in that It also includes a slide rail (900) fixedly connected to an external device, and the fixing member (800) is slidably connected to the slide rail (900).

17. The seat according to any one of claims 13 to 16, characterized in that: The control module comprises a sliding stopper (102) fixedly connected to the seat and a button body (108); The button body (108) is provided with a limit member accommodating groove (107), and the button body (108) is slidably connected to the sliding limit member (102) via the limit member accommodating groove (107), and the sliding limit member (102) is connected to the driving component via a cable (103); and return springs are provided at two ends of the limit member accommodating groove (107) along the sliding direction.

18. A vehicle comprising a seat according to any one of claims 12 to 17.

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