Rotary adjustment device and seat

Abstract

The utility model discloses a kind of rotary adjusting device and seat, the rotary adjusting device includes: mounting box and adjusting mechanism.Mounting box is equipped with locking structure and the guiding slot along arc extension, locking structure includes multiple locking portions spaced apart along the extension direction of guiding slot;Adjusting mechanism includes adjusting piece and guide column, adjusting piece includes adjusting sheet and the locking block of being arranged in adjusting sheet, adjusting sheet is located in mounting box, guide column is arranged in adjusting sheet and at least part is contained in guiding slot, guide column is slidable along the extension direction of guiding slot, for adjusting piece movement is driven, in the process that guide column moves along first direction relative to mounting box, make locking block and one of multiple locking portions abut, for limit guide column movement along second direction relative to mounting box.According to the rotary adjusting device of the utility model embodiment, device parts are few, installation is simple, adjusting process is simple, when using, it can be directly installed in slot with fixed position, and the versatility is high.

Description

Technical Field

[0001] This utility model relates to the field of mechanical adjustment, and in particular to a rotary adjustment device and a seat. Background Technology

[0002] Conventional damping rotary mechanisms typically use ball bearings to provide damping and plastic stop blocks for locking. Some switch-type rotary mechanisms use metal pins inserted through the adjustment target, such as the limit groove of a seat, for locking. Rotary mechanisms are difficult to install, have too many parts, and are inconvenient to operate during adjustment. Each adjustment target requires a corresponding rotary mechanism, resulting in low versatility.

[0003] Therefore, the rotating mechanisms in related technologies suffer from problems such as difficult installation, difficult adjustment process, and low versatility. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide a rotary adjustment device that is simple to install and adjust, and can be directly installed in a slot with a fixed position, exhibiting high versatility.

[0005] A rotary adjustment device according to a first aspect of the present invention includes: a mounting box having a locking structure and a guide groove extending in an arc shape; the locking structure including a plurality of locking portions spaced apart along the extension direction of the guide groove; the two ends of the extension direction of the guide groove being a first end and a second end, respectively; and a first direction being the direction from the first end along the extension trajectory of the guide groove to the second end; and an adjustment mechanism including an adjustment member and a guide post; the adjustment member including an adjustment piece and a locking block disposed on the adjustment piece; the adjustment piece being located inside the mounting box; and the guide post being disposed on the adjustment piece and at least partially accommodated in the guide groove; the guide post being slidable along the extension direction of the guide groove to drive the adjustment member to move; wherein the adjustment mechanism is configured such that, during the movement of the guide post relative to the mounting box along the first direction, the locking block abuts against one of the plurality of locking portions to restrict the movement of the guide post relative to the mounting box along a second direction, the second direction being opposite to the first direction.

[0006] According to the embodiment of the present invention, the rotary adjustment device fixes the guide post and the mounting box between two relatively rotatable components, and rotates one of the two relatively rotatable components to drive the guide post and the adjustment plate to move relative to the mounting box. During the movement of the guide post relative to the mounting box in the first direction, the locking block can abut against the locking part of the locking structure in the mounting box to achieve the purpose of locking the two relatively rotatable components. The adjustment process is simple. By integrating the rotary adjustment device into a whole, it can be installed between two relatively rotatable components without adding extra parts. The rotary adjustment device can be connected to different types of adjustment targets. It is simple to install and has high versatility.

[0007] According to some embodiments of the present invention, the adjusting mechanism includes an elastic element disposed on the adjusting piece, the elastic element being adapted to abut against the locking block for driving the locking block to abut against the locking part.

[0008] According to some embodiments of the present invention, the mounting box is provided with an unlocking structure, which is located on one side of the locking structure along the first direction. The unlocking structure is configured to contact the locking block when the locking block moves along the first direction to the side of the locking structure along the first direction, so that the locking block moves relative to the adjusting piece from the locked position to the unlocked position. In the unlocked position, the locking block can move relative to the mounting box along the second direction.

[0009] According to some embodiments of the present invention, the inner wall of the mounting box is provided with a mating groove, the mating groove extends along the extension direction of the guide groove, at least a portion of the locking block is accommodated in the mating groove and is movable along the extension direction of the mating groove, the mating groove has a first sidewall and a second sidewall arranged radially opposite to each other along the mating groove, the first sidewall is provided with the locking structure and the unlocking structure, and the unlocking position is closer to the second sidewall than the locking position.

[0010] According to some embodiments of the present invention, the first sidewall is located radially outside the second sidewall, and the second sidewall extends in an arc shape in the extending direction of the mating groove.

[0011] According to some embodiments of the present invention, the locking structure is formed as a sawtooth structure or a stepped structure, and the locking structure includes a locking portion and a guide portion arranged alternately in the extension direction of the mating groove, wherein the guide portion extends obliquely in the first direction toward the direction away from the second sidewall.

[0012] According to some embodiments of the present invention, the first sidewall includes a first sidewall segment and a second sidewall segment arranged sequentially along the first direction. The first sidewall segment forms the locking structure, and at least a portion of the second sidewall segment constitutes the unlocking structure. The unlocking structure extends obliquely in the first direction toward the direction close to the second sidewall.

[0013] According to some embodiments of the present invention, the adjusting mechanism includes an elastic element, the adjusting plate is provided with a mounting groove, the mounting groove includes a first mounting groove area and a second mounting groove area, the locking block is installed in the first mounting groove area and is movable relative to the adjusting plate between the locked position and the unlocked position, the elastic element includes a fixing part and an elastic part, the fixing part is accommodated in the second mounting groove area, the elastic part extends into the first mounting groove area and abuts against the locking block; wherein, the first mounting groove area has a third side wall, a fourth side wall and a fifth side wall, the third side wall and the fourth side wall are disposed opposite to each other, the fifth side wall is connected between the third side wall and the fourth side wall and is located on one side of the mounting groove along the first direction, in the locked position, the locking block is in contact with the third side wall, the fourth side wall and the fifth side wall.

[0014] According to some embodiments of the present invention, the mating groove and the guide groove are arranged along the first direction.

[0015] According to some embodiments of the present invention, the mounting box includes a detachably connected box body and a box cover, the adjusting piece is located within the space defined by the box body and the box cover, and at least one of the box cover and the box body is provided with the guide groove.

[0016] A seat according to a second aspect of the present invention includes: a seat body; an armrest rotatably connected to the seat body; and a rotation adjustment device according to a first aspect of the present invention, wherein the rotation adjustment device is installed at the rotational connection between the armrest and the seat body, one of the guide post and the mounting box is fixed to the seat body and the other is fixed to the armrest, and the curvature center of the extension trajectory of the guide groove is located on the rotation axis of the armrest; wherein, during the movement of the guide post relative to the mounting box along the first direction, the free end of the armrest moves upward relative to the seat body.

[0017] According to the embodiment of this utility model, the seat can be adjusted by rotating the free end of the armrest upward relative to the seat body, thereby driving the guide column to move the adjustment piece within the mounting box. As the guide column moves relative to the mounting box in the first direction, the locking block can abut against the locking part of the locking structure in the mounting box to achieve the purpose of locking. This simplifies the adjustment process of locking and unlocking the armrest. When connecting the rotating adjustment device to the seat, one of the guide column and the mounting box can be fixed to the seat body and the other to the armrest. The installation method of the rotating adjustment device and the seat is simple, saving manufacturing costs and installation time.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a schematic diagram of a rotation adjustment device according to some embodiments of the present invention;

[0021] Figure 2 yes Figure 1 A diagram from another angle;

[0022] Figure 3 yes Figure 1 Exploded view;

[0023] Figure 4 yes Figure 1 A schematic diagram of the assembly of the housing and the adjustment mechanism;

[0024] Figure 5 yes Figure 1 A schematic diagram of the box lid;

[0025] Figure 6 yes Figure 1 A schematic diagram showing the locking block in the locking position;

[0026] Figure 7 yes Figure 1 A schematic diagram showing the locking block in the unlocked position.

[0027] Figure label:

[0028] 100. Rotary adjustment device;

[0029] 10. Mounting box; 11. Locking structure; 111. Locking part; 112. Guide part; 12. Guide groove; 121. First end; 122. Second end; 13. Mating groove; 131. First side wall; 132. Second side wall; 133. First side wall section; 134. Second side wall section; 14. Unlocking structure; 15. Locking position; 16. Unlocking position; 17. Box body; 18. Box cover;

[0030] 20. Adjustment mechanism; 21. Adjustment component; 211. Adjustment piece; 212. Locking block; 213. Elastic component; 214. Fixing part; 215. Elastic part; 22. Guide post; 23. Mounting groove; 231. First mounting groove area; 232. Second mounting groove area; 233. Third side wall; 234. Fourth side wall; 235. Fifth side wall. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0032] The following is for reference. Figures 1-7 Describes a rotary adjustment device 100 according to an embodiment of the present invention.

[0033] refer to Figures 1-4 According to a first aspect embodiment of the present invention, a rotary adjustment device 100 includes: a mounting box 10 and an adjustment mechanism 20. The mounting box 10 is provided with a locking structure 11 and a guide groove 12 extending in an arc shape. The locking structure 11 includes a plurality of locking portions 111 spaced apart along the extension direction of the guide groove 12. The two ends of the extension direction of the guide groove 12 are a first end 121 and a second end 122, respectively. The direction from the first end 121 along the extension trajectory of the guide groove 12 to the second end 122 is defined as the first direction. The adjustment mechanism 20 includes an adjustment member 21 and a guide post 22. The adjustment member 21 includes an adjustment piece 211 and a locking block 212 disposed on the adjustment piece 211. The adjusting plate 211 is located inside the mounting box 10. The guide post 22 is disposed on the adjusting plate 211 and is at least partially accommodated in the guide groove 12. The guide post 22 is slidable along the extension direction of the guide groove 12 to drive the adjusting member 21 to move. The adjusting mechanism 20 is configured to, during the movement of the guide post 22 relative to the mounting box 10 in a first direction, cause the locking block 212 to abut against one of the plurality of locking parts 111 to restrict the movement of the guide post 22 relative to the mounting box 10 in a second direction, which is opposite to the first direction.

[0034] For example, the first direction can be referenced Figure 1In the e1 direction, the second direction can be referenced. Figure 1 In the e2 direction.

[0035] The mounting box 10 is used to accommodate the adjustment mechanism 20. The guide groove 12 extending in an arc shape is provided in the mounting box 10 to guide the guide column 22.

[0036] For example, the guide post 22 may be at least partially accommodated in the guide groove 12, or all of the guide post 22 may be accommodated in the guide groove 12. By accommodating the guide post 22 at least partially in the guide groove 12, when the guide post 22 slides from the first end 121 along the guide groove 12 to the second end 122, it can drive the adjusting member 21 in the adjusting mechanism 20 to move relative to the mounting box 10 in the first direction.

[0037] The locking part 111 serves to limit the locking block 212. Each locking part 111 corresponds to a position. By providing the locking structure 11 with multiple locking parts 111 spaced apart along the extension direction of the guide groove 12, multiple positions can be provided. During the movement, the locking block 212 abuts against the locking part 111 to achieve the effect of multi-position locking.

[0038] For example, when the rotation adjustment mechanism 20 is installed on the seat, the guide post 22 is fixed to the seat body, and the mounting box 10 is fixed to the armrest. During the movement of the guide post 22 relative to the mounting box 10 in the first direction, the locking block 212 abuts against one of the multiple locking parts 111 to restrict the movement of the guide post 22 relative to the mounting box 10 in the second direction, thereby preventing the seat and armrest from rotating relative to each other, achieving the purpose of locking the seat armrest. The adjustment process is simple.

[0039] By integrating the rotation adjustment device 100 into a single unit, it can be installed between two relatively rotatable components without the need for additional parts. The rotation adjustment device 100 can be connected to various types of adjustment targets, such as armrests of seats, adjustable-angle pillows, etc. It is not limited by assembly, is easy to install, has high versatility, and saves manufacturing costs and installation time.

[0040] According to the embodiment of the present invention, the rotary adjustment device 100 fixes the guide post 22 and the mounting box 10 between two relatively rotatable components, and rotates one of the two relatively rotatable components to drive the guide post 22 and the adjustment plate 211 to move relative to the mounting box 10. During the movement of the guide post 22 relative to the mounting box 10 in the first direction, the locking block 212 can abut against the locking part 111 of the locking structure 11 in the mounting box 10 to lock the two relatively rotatable components. The adjustment process is simple. By integrating the rotary adjustment device 100 into a whole, it can be installed between two relatively rotatable components without the need for additional parts. The rotary adjustment device 100 can be connected to different types of adjustment targets. It is simple to install and has high versatility.

[0041] refer to Figure 4 According to some embodiments of the present invention, the adjustment mechanism 20 includes an elastic element 213, which is disposed on the adjustment piece 211. The elastic element 213 is adapted to abut against the locking block 212 to drive the locking block 212 to abut against the locking part 111.

[0042] For example, the elastic element 213 can be a spring, elastic sheet, or other elastic part.

[0043] The elastic element 213 is provided on the adjusting plate 211. The elastic element 213 can be driven to move by driving the adjusting plate 211. For example, when the guide post 22 moves relative to the mounting box 10 in the first direction, it drives the adjusting plate 211 to move relative to the mounting box 10 in the first direction, and drives the elastic element 213 to move in the first direction as well.

[0044] The elastic element 213 is adapted to abut against the locking block 212, locking it in the corresponding position. The elastic element 213 can drive the locking block 212 to abut against the locking part 111 through its own elasticity, so that the locking block 212 cannot move relative to the mounting box 10 in the second direction.

[0045] refer to Figure 5 According to some embodiments of the present invention, the mounting box 10 is provided with an unlocking structure 14, which is located on one side of the locking structure 11 along the first direction. The unlocking structure 14 is configured to contact the locking block 212 when the locking block 212 moves along the first direction to the side of the locking structure 11 along the first direction, so that the locking block 212 moves relative to the adjusting piece 211 from the locked position 15 to the unlocked position 16. In the unlocked position 16, the locking block 212 can move relative to the mounting box 10 along the second direction.

[0046] An unlocking structure 14 is provided inside the mounting box 10, which can contact the locking block 212 and apply a force to the locking block 212 to prevent it from continuing to move relative to the mounting box 10 in the first direction. Under the drive of the elastic member 213, the locking block 212 moves from the locked position 15 to the unlocked position 16, and the guide post 22 can move relative to the mounting box 10 in the second direction.

[0047] For example, when the guide post 22 moves in the first direction, it drives the adjusting piece 211 to move in the first direction. The locking structure 11 limits the locking block 212, restricting the locking structure 11 from moving relative to the mounting box 10 in the second direction. This locks the adjusting piece 211 and the guide post 22 relative to the mounting box 10, preventing them from moving in the second direction. When the locking block 212 moves relative to the adjusting piece 211 from the locked position 15 to the unlocked position 16, in the unlocked position 16, the locking block 212 can move relative to the mounting box 10 in the second direction. This allows the adjusting piece 211 and the guide post 22 to move relative to the mounting box 10 in the second direction.

[0048] refer to Figure 5 According to some embodiments of the present invention, the inner wall of the mounting box 10 is provided with a mating groove 13, the mating groove 13 extends along the extension direction of the guide groove 12, at least a portion of the locking block 212 is accommodated in the mating groove 13 and is movable along the extension direction of the mating groove 13, the mating groove 13 has a first side wall 131 and a second side wall 132 arranged radially opposite to each other along the mating groove 13, the first side wall 131 is provided with a locking structure 11 and an unlocking structure 14, and the unlocking position 16 is closer to the second side wall 132 than the locking position 15.

[0049] For example, at least a portion of the locking block 212 may be accommodated in the mating groove 13. This could be a part of the locking block 212 being accommodated in the mating groove 13, or the entire locking block 212 being accommodated in the mating groove 13.

[0050] By providing a mating groove 13 on the inner wall of the mounting box 10, the rotation adjustment device 100 can be easily installed.

[0051] For example, the locking structure 11 and the first sidewall 131 can be integrally formed.

[0052] By bringing the unlock position 16 closer to the second side wall 132 relative to the locking position 15, the locking block 212 can be moved away from the first side wall 131. This facilitates the movement of the locking block 212 relative to the mounting box 10 in the second direction when it is in the unlock position 16, preventing the locking structure 11 of the first side wall 131 from blocking the locking block 212.

[0053] refer to Figure 5According to some embodiments of the present invention, the first sidewall 131 is located radially outside the second sidewall 132, and the second sidewall 132 extends in an arc shape in the extending direction of the mating groove 13.

[0054] By making the second sidewall 132 extend in an arc shape in the extension direction of the mating groove 13, it can guide the locking block 212, so that when the locking block 212 is in the unlocked position 16, the resistance of the locking block 212 relative to the mounting box 10 in the second direction is reduced, which facilitates the adjustment of the adjustment target connected to the rotary adjustment device 100.

[0055] refer to Figure 5 According to some embodiments of the present invention, the locking structure 11 is formed as a sawtooth structure or a stepped structure. The locking structure 11 includes a locking part 111 and a guide part 112 arranged alternately in the extension direction of the mating groove 13. The guide part 112 extends obliquely in the first direction toward the direction away from the second side wall 132.

[0056] By forming the locking structure 11 into a sawtooth structure or a stepped structure, multiple locking parts 111 can be formed in the locking structure 11, which is simple in structure and easy to process and form.

[0057] The locking structure 11 includes locking portions 111 and guide portions 112 alternately arranged in the extending direction of the mating groove 13. When the locking block 212 moves relative to the mounting box 10 in a first direction, the locking block 212 contacts the locking portion 111 to achieve locking. The limiting effect of the locking portion 111 prevents the locking block 212 from moving relative to the mounting box 10 in a second direction. When the locking block 212 moves relative to the mounting box 10 from one locking portion 111 to its adjacent locking portion 111 in the first direction, the guide portion 112 guides it to the next locking portion 111. The guide portion 112 extends obliquely in the first direction away from the second sidewall 132, which can reduce the resistance of the locking block 212 moving relative to the mounting box 10 in the first direction.

[0058] refer to Figure 5 According to some embodiments of the present invention, the first sidewall 131 includes a first sidewall segment 133 and a second sidewall segment 134 arranged sequentially along a first direction. The first sidewall segment 133 forms a locking structure 11, and at least a portion of the second sidewall segment 134 constitutes an unlocking structure 14. The unlocking structure 14 extends obliquely in the first direction toward the direction close to the second sidewall 132.

[0059] For example, at least a portion of the second sidewall segment 134 constitutes the unlocking structure 14. This can be either a part of the second sidewall segment 134 constituting the unlocking structure 14 or the entire second sidewall segment 134 constituting the unlocking structure 14.

[0060] The unlocking structure 14 extends obliquely in the first direction toward the second sidewall 132, thereby limiting the locking block 212 and preventing it from continuing to move relative to the mounting box 10 in the first direction. This allows the locking block 212 to move relative to the adjusting piece 211 from the locked position 15 to the unlocked position 16. The locking block 212 is locked by the locking structure 11 of the first sidewall section 133 and unlocked by the unlocking structure 14 of the second sidewall section 134. The locking and unlocking structures are simple.

[0061] refer to Figures 6-7 According to some embodiments of the present invention, the adjusting mechanism 20 includes an elastic element 213, and the adjusting plate 211 is provided with a mounting groove 23. The mounting groove 23 includes a first mounting groove area 231 and a second mounting groove area 232. The locking block 212 is installed in the first mounting groove area 231 and is movable relative to the adjusting plate 211 between the locked position 15 and the unlocked position 16. The elastic element 213 includes a fixing part 214 and an elastic part 215. The fixing part 214 is accommodated in the second mounting groove area 232, and the elastic part 215 extends... The first mounting groove 231 is inserted into the first mounting groove area 231 and abuts against the locking block 212. The first mounting groove area 231 has a third side wall 233, a fourth side wall 234 and a fifth side wall 235. The third side wall 233 and the fourth side wall 234 are arranged opposite to each other. The fifth side wall 235 is connected between the third side wall 233 and the fourth side wall 234 and is located on one side of the mounting groove 23 along the first direction. In the locked position 15, the locking block 212 is in contact with the third side wall 233, the fourth side wall 234 and the fifth side wall 235.

[0062] By accommodating the fixing part 214 of the elastic member 213 in the second mounting groove area 232, the installation of the elastic member 213 is facilitated, and the elastic member 213 is fixed. By extending the elastic part 215 of the elastic member 213 into the first mounting groove area 231 and abutting against the locking block 212, the elasticity of the elastic member 213 can drive the locking block 212 to abut against the locking part 111, and assist the locking block 212 to switch between the locking position 15 and the unlocking position 16.

[0063] When in the locked position 15, the locking block 212 is in contact with the third side wall 233, the fourth side wall 234 and the fifth side wall 235, so that when the locking part 111 limits the locking block 212, neither the adjusting piece 211 nor the guide post 22 can move relative to the mounting box 10 in the second direction.

[0064] refer to Figure 5 According to some embodiments of the present invention, the mating groove 13 and the guide groove 12 are arranged along the first direction.

[0065] By arranging both the mating groove 13 and the guide groove 12 along the first direction, the circumferential space of the mounting box 10 along the first direction can be fully utilized, resulting in a compact structure and reducing the radial installation dimensions of the rotation adjustment mechanism 20.

[0066] refer to Figure 3 According to some embodiments of the present invention, the mounting box 10 includes a detachably connected box body 17 and a box cover 18. The adjusting piece 211 is located in the space defined by the box body 17 and the box cover 18. At least one of the box cover 18 and the box body 17 is provided with a guide groove 12.

[0067] For example, at least one of the lid 18 and the body 17 is provided with a guide groove 12. The guide groove 12 can be provided on the lid 18, the guide groove 12 can be provided on the body 17, or both the lid 18 and the body 17 are provided with guide grooves 12.

[0068] The detachable connection between the box body 17 and the box cover 18 facilitates the maintenance and replacement of components such as the adjusting plate 211, locking block 212, and elastic element 213 in the adjusting mechanism 20. The adjusting plate 211 is located within the space defined by the box body 17 and the box cover 18, which facilitates the rotation of the adjusting plate 211 along the first and second directions with the guide column 22.

[0069] A seat according to a second aspect of the present invention includes: a seat body and an armrest, the armrest being rotatably connected to the seat body; a rotation adjustment device 100 according to a first aspect of the present invention, the rotation adjustment device 100 being installed at the rotational connection between the armrest and the seat body; one of the guide post 22 and the mounting box 10 being fixed to the seat body and the other being fixed to the armrest; the curvature center of the extension trajectory of the guide groove 12 being located on the rotation axis of the armrest; wherein, during the movement of the guide post 22 relative to the mounting box 10 in a first direction, the free end of the armrest moves upward relative to the seat body.

[0070] The curvature center of the extended trajectory of the guide groove 12 is located on the rotation axis of the armrest, allowing it to rotate coaxially and smoothly. This facilitates the sliding of the guide post 22 in the guide groove 12 along the guide groove 12. When the user drives the free end of the armrest upward relative to the seat body to the desired angle for use, the guide post 22 moves relative to the mounting box 10 in the first direction. At this time, the locking block 212 in the rotation adjustment device 100 is in the locked position 15 and abuts against the locking part 111 in the mounting box 10, preventing the guide post 22 from moving relative to the mounting box 10 in the second direction. At this time, the free end of the armrest cannot move downward relative to the seat itself, and the free end of the armrest reaches the locked state, allowing the user to place their hand on the armrest. When the free end of the armrest is raised to the highest point, the locking block 212 contacts the unlocking structure 14 and is in the unlocked position 16. At this time, the free end of the armrest can move downward relative to the seat itself. When the free end of the armrest is raised to the lowest point, the locking block 212 contacts the locking structure 11 and is in the locked state. At this time, the user can move the free end of the armrest upward relative to the seat body to the required angle for use.

[0071] According to the embodiment of the present invention, the seat can be driven by rotating the free end of the armrest to move upward relative to the seat body. This drives the guide column 22 to drive the adjustment piece 211 to move within the mounting box 10. As the guide column 22 moves relative to the mounting box 10 in the first direction, the locking block 212 can abut against the locking part 111 of the locking structure 11 in the mounting box 10 to achieve the purpose of locking. This simplifies the adjustment process of locking and unlocking the armrest. When connecting the rotating adjustment device 100 to the seat, one of the guide column 22 and the mounting box 10 can be fixed to the seat body and the other to the armrest. The installation method of the rotating adjustment device 100 and the seat is simple, saving manufacturing costs and installation time.

[0072] The following is combined Figures 1-7 The rotary adjustment device 100 of some embodiments of the present invention is described.

[0073] In this embodiment, the rotation adjustment device 100 includes a mounting box 10 and an adjustment mechanism 20.

[0074] The mounting box 10 is provided with a locking structure 11, an unlocking structure 14, and a guide groove 12 extending in an arc shape. The mounting box 10 includes a detachably connected box body 17 and a box cover 18. An adjusting piece 211 is located within the space defined by the box body 17 and the box cover 18. Both the box cover 18 and the box body 17 are provided with guide grooves 12. The locking structure 11 includes a plurality of locking parts 111 spaced apart along the extension direction of the guide groove 12. The two ends of the extension direction of the guide groove 12 are a first end 121 and a second end 122, respectively. The direction from the first end 121 along the extension trajectory of the guide groove 12 to the second end 122 is the first direction. The adjusting mechanism 20 includes an adjusting member 21 and a guide post 22. 21 includes an adjusting plate 211 and a locking block 212 disposed on the adjusting plate 211. The adjusting mechanism 20 also includes an elastic member 213 disposed on the adjusting plate 211 and adapted to abut against the locking block 212. The adjusting plate 211 is located inside the mounting box 10. A guide post 22 is disposed on the adjusting plate 211 and partially accommodated in the guide groove 12. The guide post 22 is slidable along the extension direction of the guide groove 12. During the movement of the guide post 22 relative to the mounting box 10 in a first direction, the locking block 212 abuts against one of the plurality of locking parts 111 to limit the movement of the guide post 22 relative to the mounting box 10 in a second direction, which is opposite to the first direction.

[0075] The inner wall of the mounting box 10 is provided with a mating groove 13, which extends along the extension direction of the guide groove 12. At least a portion of the locking block 212 is accommodated in the mating groove 13 and is movable along the extension direction of the mating groove 13. The mating groove 13 has a first sidewall 131 and a second sidewall 132 arranged radially opposite to each other along the mating groove 13. The first sidewall 131 is provided with a locking structure 11 and an unlocking structure 14. The unlocking position 16 is closer to the second sidewall 132 than the locking position 15. The first sidewall 131 is located radially outside the second sidewall 132. The second sidewall 132 extends in an arc shape in the extension direction of the mating groove 13. The first sidewall 131 includes a first sidewall segment 133 and a second sidewall segment 134 arranged sequentially along a first direction. The first sidewall segment 133 forms the locking structure 11, and a portion of the second sidewall segment 134 constitutes the unlocking structure 14. The unlocking structure 14 extends obliquely in the first direction toward the direction closer to the second sidewall 132. The locking structure 11 is formed as a stepped structure. The locking structure 11 includes a locking part 111 and a guide part 112 arranged alternately in the extension direction of the mating groove 13. The guide part 112 extends obliquely in the first direction toward the direction away from the second side wall 132.

[0076] The adjusting piece 211 is provided with a mounting groove 23, which includes a first mounting groove area 231 and a second mounting groove area 232. The locking block 212 is installed in the first mounting groove area 231 and is movable relative to the adjusting piece 211 between the locked position 15 and the unlocked position 16. The elastic member 213 includes a fixing part 214 and an elastic part 215. The fixing part 214 is accommodated in the second mounting groove area 232, and the elastic part 215 extends into the first mounting groove area 231 and is in contact with the locking block 212. 12 Abutting, the first mounting groove area 231 has a third side wall 233, a fourth side wall 234 and a fifth side wall 235. The third side wall 233 and the fourth side wall 234 are arranged opposite to each other. The fifth side wall 235 is connected between the third side wall 233 and the fourth side wall 234 and is located on one side of the mounting groove 23 along the first direction. When the locking block 212 is in the locking position 15, the locking block 212 is in contact with the third side wall 233, the fourth side wall 234 and the fifth side wall 235.

[0077] When the guide post 22 moves relative to the mounting box 10 in the first direction, it drives the locking block 212 in the adjusting plate 211 to move relative to the mounting box 10 in the first direction. The locking block 212 abuts against one of the multiple locking parts 111. At this time, the locking block 212 is in the locked position 15. The locking block 212 cannot move relative to the mounting box 10 in the second direction. By abutting against different locking parts 111, different angles can be adjusted.

[0078] When the guide post 22 moves relative to the mounting box 10 in the first direction until the locking block 212 contacts the unlocking structure 14, the unlocking structure 14 limits the locking block 212, preventing the locking block 212 from continuing to move relative to the mounting box 10 in the first direction. This causes the locking block 212 to move relative to the adjusting piece 211 from the locked position 15 to the unlocked position 16. At this time, the guide post 22 can move relative to the mounting box 10 in the second direction, driving the locking block 212 to move relative to the mounting box 10 along the second side wall 132 in the second direction.

[0079] When the guide post 22 moves relative to the mounting box 10 in the second direction until the locking block 212 contacts the locking structure 11, the locking structure 11 limits the locking block 212, preventing the locking block 212 from continuing to move relative to the mounting box 10 in the second direction. This causes the locking block 212 to move relative to the adjusting piece 211 from the unlocked position 16 to the locked position 15. At this time, the guide post 22 cannot move relative to the mounting box 10 in the second direction, but the guide post 22 can continue to move relative to the mounting box 10 in the first direction for adjustment.

[0080] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0081] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.

[0082] In the description of this utility model, "multiple" means two or more.

[0083] In the description of this utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0084] In the description of this utility model, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0085] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0086] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A rotary adjustment device, characterized in that include: The mounting box is provided with a locking structure and a guide groove extending in an arc shape. The locking structure includes a plurality of locking parts spaced apart along the extension direction of the guide groove. The two ends of the extension direction of the guide groove are a first end and a second end, respectively. The direction from the first end along the extension trajectory of the guide groove to the second end is the first direction. An adjustment mechanism is provided, comprising an adjustment element and a guide post. The adjustment element includes an adjustment plate and a locking block disposed on the adjustment plate. The adjustment plate is located inside the mounting box. The guide post is disposed on the adjustment plate and is at least partially accommodated in the guide groove. The guide post is slidable along the extension direction of the guide groove to drive the adjustment element to move. The adjusting mechanism is configured such that, during the movement of the guide post relative to the mounting box in the first direction, the locking block abuts against one of the plurality of locking portions to restrict the movement of the guide post relative to the mounting box in a second direction, which is opposite to the first direction.

2. The rotational adjustment device of claim 1, wherein, The adjusting mechanism includes an elastic element disposed on the adjusting plate. The elastic element is adapted to abut against the locking block to drive the locking block to abut against the locking part.

3. The rotational adjustment device of claim 1, wherein, The mounting box is provided with an unlocking structure located on one side of the locking structure along the first direction. The unlocking structure is configured to contact the locking block when the locking block moves along the first direction to the side of the locking structure along the first direction, so that the locking block moves relative to the adjusting piece from the locked position to the unlocked position. In the unlocked position, the locking block can move relative to the mounting box along the second direction.

4. A rotational adjustment device according to claim 3, characterized in that The inner wall of the mounting box is provided with a mating groove, which extends along the extension direction of the guide groove. At least a portion of the locking block is accommodated in the mating groove and is movable along the extension direction of the mating groove. The mating groove has a first sidewall and a second sidewall that are radially opposite to each other along the mating groove. The first sidewall is provided with the locking structure and the unlocking structure. The unlocking position is closer to the second sidewall than the locking position.

5. A rotational adjustment device according to claim 4, characterized in that The first sidewall is located radially outside the second sidewall, and the second sidewall extends in an arc shape in the extending direction of the mating groove.

6. The rotational adjustment device of claim 4, wherein, The locking structure is formed as a sawtooth structure or a stepped structure. The locking structure includes locking portions and guide portions that are alternately arranged in the extension direction of the mating groove. The guide portions extend obliquely in the first direction toward the direction away from the second sidewall.

7. The rotational adjustment device of claim 5, wherein, The first sidewall includes a first sidewall segment and a second sidewall segment arranged sequentially along the first direction. The first sidewall segment forms the locking structure, and at least a portion of the second sidewall segment constitutes the unlocking structure. The unlocking structure extends obliquely in the first direction toward the direction close to the second sidewall.

8. The rotational adjustment device of claim 5, wherein, The adjustment mechanism includes an elastic element, and the adjustment piece is provided with a mounting groove. The mounting groove includes a first mounting groove area and a second mounting groove area. The locking block is installed in the first mounting groove area and is movable relative to the adjustment piece between the locked position and the unlocked position. The elastic element includes a fixing part and an elastic part. The fixing part is accommodated in the second mounting groove area, and the elastic part extends into the first mounting groove area and abuts against the locking block. The first mounting groove area has a third sidewall, a fourth sidewall, and a fifth sidewall. The third sidewall and the fourth sidewall are disposed opposite to each other. The fifth sidewall is connected between the third sidewall and the fourth sidewall and is located on one side of the mounting groove along the first direction. In the locking position, the locking block is in contact with the third sidewall, the fourth sidewall, and the fifth sidewall.

9. The rotational adjustment device of claim 4, wherein, The mating groove and the guide groove are arranged along the first direction.

10. A rotational adjustment device according to any one of claims 1-9, characterized in that, The mounting box includes a detachably connected box body and a box cover. The adjustment piece is located within the space defined by the box body and the box cover. At least one of the box cover and the box body is provided with the guide groove.

11. A seat, characterized by include: Seat body; Armrests, which are rotatably connected to the seat body. ； According to any one of claims 1-10, the rotation adjustment device is installed at the rotational connection between the armrest and the seat body, one of the guide column and the mounting box is fixed to the seat body and the other is fixed to the armrest, and the curvature center of the extension trajectory of the guide groove is located on the rotation axis of the armrest. wherein As the guide post moves relative to the mounting box along the first direction, the free end of the armrest moves upward relative to the seat body.

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