Adjusting structure and seat
By introducing a matching mechanism between movable blocks and steel balls into the adjustment structure of the seat back, the problem that traditional seat backs cannot be adjusted individually is solved, and the adjustment effect is achieved that convenient and labor-saving is achieved, and the convenience and comfort of use are improved.
Patent Information
- Application Number
- CN202422411787.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-30
Smart Images
Figure CN223041173U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of seats, and particularly relates to an adjusting structure and a seat. Background Art
[0002] The position of a traditional seat backrest is fixed and cannot be adjusted individually according to the body shape and sitting posture of a user, resulting in the seat backrest being unable to provide better support for the user. To improve the above defects of traditional seats, some existing seats install the backrest adjustably on the bracket or armrest bracket of the seat cushion. For example, specifically, a chute is provided on the bracket, and the backrest is slidably installed in the chute. Steel balls are arranged between the mutually cooperating surfaces of the bracket and the backrest, and the steel balls cooperate with different card slots on the bracket or the backrest, so that after adjustment, the damping force provided by the steel balls is used to keep the backrest and the bracket in a fixed position. Although this structure can realize the up-and-down adjustment of the backrest, the damping force provided by the steel balls is relatively large. When adjustment is required, a relatively large external force needs to be applied to move the backrest to enable the steel balls to move between different card slots. Especially when applied to a children's seat, because a relatively large external force needs to be applied during adjustment, it is extremely inconvenient to use the children's seat. Content of the Utility Model
[0003] The purpose of the utility model is to provide an adjusting structure and a seat, which can be adjusted conveniently and can maintain a relatively stable state after adjustment.
[0004] To achieve the above purpose, the utility model adopts the following technical solutions:
[0005] The adjusting structure includes a fixed bracket, a movable seat, and steel balls;
[0006] The movable seat is installed on the fixed bracket and can slide relative to the fixed bracket along a straight line. A first mating surface facing the movable seat is provided on the fixed bracket, and a second mating surface opposite to the first mating surface is provided on the movable seat; a plurality of card slots arranged in a straight line are provided on the first mating surface;
[0007] A through hole is provided on the movable seat, one end of the through hole extends to the second mating surface, the steel balls are embedded in the through hole, and a part of the steel balls protrudes from the second mating surface and is placed in one of the card slots to lock the degree of freedom of movement of the movable seat relative to the fixed bracket; a movable block is arranged at the other end of the through hole on the movable seat, an avoidance groove and a stop surface are provided on the movable block, and the movable block is movably installed on the movable seat so that the movable block can move relative to the movable seat between a first position and a second position; when the movable block is in the first position, the stop surface blocks the other end of the through hole to prevent the steel balls from disengaging from the card slots, and when the movable block is in the second position, the avoidance groove is aligned with the other end of the through hole so that the steel balls can disengage from the card slots and a part of the steel balls can fall into the avoidance groove.
[0008] Preferably, a mounting groove extending along a straight line is provided on the movable seat, the other end of the through hole communicates with the mounting groove, and the movable block is embedded in the mounting groove and can slide in the mounting groove.
[0009] Preferably, the extending direction of the straight line is consistent with the up-and-down direction, so that the upper end of the mounting groove extends to the top surface of the movable seat to form an opening, the movable block penetrates into the mounting groove through the opening, and the top of the movable block protrudes from the opening to form a pressing portion; an elastic reset member is arranged between the movable block and the movable seat. Operating the pressing portion to move the movable block from the first position to the second position, and the elastic reset member is used to provide an elastic stress for pushing the movable block from the second position to the first position.
[0010] Preferably, the lower end of the mounting groove forms a blind end, the elastic reset member is a spring, the upper end of the spring abuts against the bottom surface of the movable block, and the lower end abuts against the blind end of the mounting groove.
[0011] Preferably, a limiting groove extending from bottom to top is provided on the movable seat, the limiting groove penetrates from the second mating surface to the mounting groove, a limiting member is fixedly connected to the movable block in a detachable manner, the limiting member is slidably embedded in the limiting groove, and the upper end and the lower end of the limiting groove are used to limit the range of up-and-down movement of the limiting member.
[0012] Preferably, the avoidance groove includes an arc-shaped receiving portion and an inclined guide wall. One side of the receiving portion extends to the surface of the movable block facing the first mating surface, and the inclined guide wall extends from the other side of the receiving portion to the surface of the movable block facing the first mating surface. The inclined guide wall is used to abut against the steel ball when the movable block moves from the second position to the first position so that the steel ball moves towards the first mating surface.
[0013] Preferably, a sliding groove extending along a straight line is provided on the fixed bracket, and the movable seat is slidably mounted in the sliding groove so that the movable seat can slide relative to the fixed bracket along a straight line.
[0014] Preferably, the fixed bracket includes a backrest bracket and a fixing plate fixedly connected to the backrest bracket in a detachable manner. A retaining rib is respectively protruded on both sides of the fixing plate, and a sliding groove is formed between each retaining rib and the backrest bracket; two first ribs are protruded on the second mating surface of the movable seat, and second ribs extending towards each other are provided on the two first ribs. A guide groove is respectively formed between the two second ribs and the second mating surface, and the two second ribs are respectively slidably embedded in the two sliding grooves, and the two retaining ribs are respectively slidably embedded in the two guide grooves.
[0015] Preferably, a mounting groove is provided on the backrest bracket, and the fixing plate is embedded in the mounting groove.
[0016] A seat, including the above-mentioned adjustment structure.
[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0018] In the present utility model, an active block that can move relative to the active seat is provided on the active seat. When the active block moves relative to the active seat, the active block can abut against or avoid the steel ball. When the active block abuts against the steel ball, a part of the steel ball is placed in the through hole of the active seat and another part is placed in the card slot, so that the steel ball can stably lock the active seat and the fixed bracket. When the active block moves to avoid the steel ball in the avoidance groove, the steel ball can move on the normal phase of the first mating surface and the second mating surface, and then the steel ball can be disengaged from the card slot. Therefore, when adjusting the active seat, the active block is moved to the state where the avoidance groove avoids the steel ball, and the steel ball no longer contacts the inner wall of the card slot after moving, so that no damping force is generated on the movement of the active seat, and thus the active seat can be adjusted conveniently and labor-savingly. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 is a schematic structural view of the present utility model;
[0020] Figure 2 is a sectional view of the present utility model;
[0021] Figure 3 is a schematic view of a use state of the present utility model;
[0022] Figure 4 is Figure 2 the A-A sectional view of;
[0023] Figure 5 is Figure 2 the enlarged view at B in;
[0024] Figure 6 is Figure 1 the schematic structural view of the active seat in.
[0025] Wherein: 100, fixed bracket; 10, backrest bracket; 11, installation groove; 20, fixing plate; 201, first mating surface; 21, card slot; 22, retaining rib; 30, active seat; 301, second mating surface; 31, installation slot; 32, through hole; 33, guide groove; 331, first rib; 332, second rib; 34, limit slot; 40, active block; 41, limit screw; 42, pressing part; 43, avoidance groove; 431, inclined guide wall; 432, receiving part; 50, spring; 60, steel ball. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0026] Next, in combination with the accompanying drawings and specific embodiments, the present utility model will be further described. It should be noted that, on the premise of non-conflict, any combination of the following-described embodiments or technical features can form a new embodiment. Except as otherwise specifically stated, the materials and equipment used in this embodiment can be purchased from the market. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as a limitation to the present application.
[0027] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application. In the description of the present application, the meaning of "a plurality" is two or more, unless otherwise specifically and precisely defined.
[0028] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "connected", "communicated", "connected" should be understood in a broad sense. For example, it can be a fixed connection, or it can be connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0029] Such as Figure 1 、 2, 3, 4, 5, and 6 show an adjustment structure of the utility model, in particular, an adjustment structure of a seat back, which includes a fixed bracket 100, a movable seat 30, and a steel ball 60, wherein the seat back is mounted on the movable seat 30; the fixed bracket 100 is fixedly matched with a bracket, a base or a cushion of the seat, and as a fixing part of the adjustment structure, the movable seat 30 can slide relative to the fixed bracket 100 in the up-down direction, and a first mating surface 201 facing the movable seat 30 is provided on the fixed bracket 100, and a second mating surface 301 opposite to the first mating surface 201 is provided on the movable seat 30, and the first mating surface 201 and the second mating surface 301 both extend in the up-down direction, and a plurality of card slots 21 are provided on the first mating surface 201, and the plurality of card slots 21 are arranged in the up-down direction; the movable seat 30 A through hole 32 is provided, one end of the through hole 32 extends to the second mating surface 301, the steel ball 60 is embedded in the through hole 32, and a part of the steel ball 60 protrudes from the second mating surface 301 and is placed in one of the slots 21, so that the freedom of the movable seat 30 to move up and down relative to the fixed bracket 100 is locked by the steel ball 60; a movable block 40 is provided on the movable seat 30, the movable block 40 can be movably installed on the movable seat 30, and is located at the other end of the through hole 32, and an avoidance groove 43 and a stop surface are provided on the surface of the movable block 40 facing the steel ball 60, specifically, the avoidance groove 43 is formed by being recessed on the surface of the movable block 40 facing the steel ball 60 in the direction away from the fixed bracket 100, and the stop surface is formed on the surface of the movable block 40 facing the steel ball 60, The movable block 40 can move between the first position and the second position relative to the movable seat 30 in the up-down direction. When the movable block 40 is in the first position, the stop surface blocks the other end of the through hole 32, and the steel ball 60 is resisted by the stop surface to prevent the steel ball 60 from escaping from the slot 21. When the movable block 40 moves downward from the first position to the second position, the avoidance groove 43 on the movable block 40 faces the other end of the through hole 32. At this time, the steel ball 60 located in the through hole 32 can enter the avoidance groove 43 through the through hole 32, so that a part of the steel ball 60 is embedded in the avoidance groove 43, and the steel ball 60 is located in the slot 21. The part in the middle moves to the through hole 32. At this time, the steel ball 60 no longer limits the freedom of the movable seat 30 to move up and down relative to the fixed bracket 100, so that the movable seat 30 can move up and down relative to the fixed bracket 100 under the action of external force, so as to achieve the purpose of adjusting the height of the movable seat 30. When the height position of the movable seat 30 is adjusted to the right position, the movable block 40 moves upward from the second position to the first position, and the steel ball 60 disengages from the avoidance groove 43, so that a part of the steel ball 60 is embedded in the card slot 21 at the corresponding position, and the steel ball 60 re-locks the freedom of the movable seat 30 relative to the fixed bracket 100.
[0030] In the present utility model, an active block 40 that can move relative to the active seat 30 is provided on the active seat 30. When the active block 40 moves relative to the active seat 30, the active block 40 can abut against or avoid the steel ball 60. When the active block 40 abuts against the steel ball 60, a part of the steel ball 60 is placed in the through hole 32 of the active seat 30 and another part is placed in the card slot 21, so that the steel ball 60 can stably lock the active seat 30 and the fixed bracket 100. When the active block 40 moves to avoid the steel ball 60 by the avoidance groove 43, the steel ball 60 can move on the normal phase of the first mating surface 201 and the second mating surface 301, and then the steel ball 60 can be disengaged from the card slot 21. Therefore, when adjusting the active seat 30, the active block 40 is moved to a state where the avoidance groove 43 avoids the steel ball 60, and the steel ball 60 no longer contacts the inner wall of the card slot 21 after moving, so that no damping force is generated on the movement of the active seat 30, and thus the active seat 30 can be adjusted conveniently and labor-savingly.
[0031] In a preferred embodiment, a mounting groove 31 extending in the up-down direction is provided on the movable seat 30, and a wall panel is formed on the portion of the movable seat 30 located between the mounting groove 31 and the second mating surface 301, and a through hole 32 passes through the wall panel, so that one end of the through hole 32 extends to the second mating surface 301 and the other end is connected to the mounting groove 31, and the movable block 40 is embedded in the mounting groove 31 and can slide in the mounting groove 31. The mounting groove 31 is used to guide the movable block 40 so that when the movable block 40 is in the second position, the avoidance groove 43 can be aligned with the through hole 32, so that the avoidance groove 43 can accommodate the steel ball 60. The upper end of the above-mentioned mounting groove 31 extends to the top surface of the movable seat 30 to form an opening, and the movable block 40 is connected to the mounting groove 31 through the opening. The top of the movable block 40 protrudes from the opening to form a pressing portion 42. An elastic reset member is arranged between the movable block 40 and the movable seat 30. When the movable seat 30 needs to be adjusted, downward pressure is applied to the pressing portion 42 to make the movable block 40 move downward from the first position to the second position. The elastic reset member is used to provide an elastic stress, which always pushes the movable block 40 upward. When the movable block 40 moves downward to the second position, the elastic reset member is compressed, and the elastic stress generated by the elastic reset member pushes the movable block 40 upward. When the external force on the movable block 40 is removed, the elastic stress of the elastic reset member pushes the movable block 40 upward from the second position to the first position. During use, the user presses the pressing portion 42 of the movable block 40 downward, and the movable block 40 moves downward to the second position, so that the avoidance groove 43 is aligned with the through hole 32. At this time, the movable seat 30 is moved. Since the movable block 40 does not limit the freedom of the steel ball 60 to move toward it, the steel ball 60 is pushed by the inner wall of the through hole 32, and moves along the through hole 32 toward the avoidance groove 43, and a part of the steel ball 60 falls into the avoidance groove 43, so that the steel ball 60 can be easily detached from the slot 21, and the resistance generated when moving the movable seat 30 is small. After the position adjustment of the movable seat 30 is completed, the external force on the pressing portion 42 is released, and the elastic reset member pushes the movable block 40 upward. During the upward movement of the movable block 40, the inner wall surface of the avoidance groove 43 pushes the steel ball 60 to move toward the slot 21, until the movable block 40 moves to the first position, the stop surface blocks the through hole 32 and abuts against the steel ball 60, so that a part of the steel ball 60 is stuck in the slot 21, and the freedom of movement of the steel ball 60 is limited by the stop surface, so that the steel ball 60 can be stably stuck in the slot 21. The lower end of the mounting slot 31 forms a blind end, and the elastic reset member is a spring 50, the upper end of the spring 50 abuts against the bottom surface of the movable block 40, and the lower end abuts against the blind end of the mounting slot 31. It should be pointed out that the above-mentioned elastic reset member is not limited to the spring 50, and it can also be other elastic reset members such as elastic rubber blocks and springs.
[0032] To prevent the movable block 40 from detaching from the movable seat 30 while facilitating the installation of the movable block 40 on the movable seat 30, a limiting groove 34 extending from bottom to top is provided on the movable seat 30. The limiting groove 34 penetrates from the second mating surface 301 to the installation groove 31, that is, the limiting groove 34 is provided on the wall plate formed between the second mating surface 301 and the installation groove 31. A limiting screw 41 is screwed on the movable block 40, and the limiting screw 41 is slidably embedded in the limiting groove 34. The upper and lower ends of the limiting groove 34 are used to limit the range of the up and down movement of the limiting screw 41, and then limit the range of the up and down movement of the movable block 40 relative to the movable seat 30. During assembly, the movable block 40 is inserted into the installation groove 31 from the opening of the installation groove 31, and then the limiting screw 41 is passed through the limiting groove 34 from the side of the second mating surface 301 and screwed onto the movable block 40.
[0033] In another preferred embodiment, the avoidance groove 43 includes an arc-shaped receiving portion 432 and an inclined guide wall 431. One side of the receiving portion 432 extends to the surface of the movable block 40 facing the first mating surface 201, and the inclined guide wall 431 extends from the other side of the receiving portion 432 to the surface of the movable block 40 facing the first mating surface 201. When the movable block 40 moves from the second position to the first position, the inclined guide wall 431 abuts against the steel ball 60. Through the inclined surface formed by the inclined guide wall 431, the steel ball 60 gradually moves towards the card slot 21 and finally the steel ball 60 completely detaches from the avoidance groove 43.
[0034] In the present utility model, a chute extending in the up and down direction is provided on the fixed bracket 100, and the movable seat 30 is slidably installed in the chute, so that the movable seat 30 can slide relative to the fixed bracket 100 in the up and down direction. Specifically, the fixed bracket 100 includes a backrest bracket 10 and a fixing plate 20. The fixing plate 20 is detachably fixed to the backrest bracket 10 by screw connection or other fixing means. Two retaining ribs 22 are respectively protrudingly provided on both sides of the fixing plate 20, and the retaining ribs 22 extend in the up and down direction. When the fixing plate 20 is fixedly connected to the front side of the backrest bracket 10, a chute is respectively formed between each retaining rib 22 and the backrest bracket 10; two first protruding ribs 331 are protrudingly provided on the second mating surface 301 of the movable seat 30, and second protruding ribs 332 extending towards each other are provided on the two first protruding ribs 331. A guide groove 33 is respectively formed between the two second protruding ribs 332 and the second mating surface 301. The two second protruding ribs 332 are respectively slidably embedded in the two chutes, and the two retaining ribs 22 are respectively slidably embedded in the two guide grooves 33. During assembly, the fixing plate 20 can be placed between the two first protruding ribs 331, so that the two retaining ribs 22 are inserted into the two guide grooves 33 from top to bottom. Then, the fixing plate 20 and the backrest bracket 10 are fixed together by screws from the rear side of the backrest bracket 10. To reduce the occupation of the front and rear space, an installation groove 11 is provided on the backrest bracket 10, and the fixing plate 20 is embedded in the installation groove 11.
[0035] It should be noted that the adjustment structure of the present utility model is applicable to the vertical position adjustment of the above-mentioned seat backrest. In fact, it can also be applicable to the vertical adjustment of the seat headrest; of course, it can also be applicable to the adjustment of other components on the seat, not limited to vertical adjustment, and it can also be the adjustment of other linearly moving components.
[0036] The seat of the present utility model includes the above-mentioned adjustment structure, and the other structures of the seat are the same as those in the prior art and will not be described in detail here.
[0037] Finally, it should be noted that the above embodiments are only optional embodiment modes of the present utility model, and the scope of protection of the present utility model cannot be limited thereby. Any non-substantive changes and substitutions made by those skilled in the art on the basis of the present utility model belong to the scope of protection required by the present utility model.
Claims
1. A regulating structure, characterized in that: Including fixed bracket, movable seat and steel ball; The movable seat is mounted on the fixed bracket and can slide relative to the fixed bracket along a straight line. The fixed bracket is provided with a first mating surface facing the movable seat, and the movable seat is provided with a second mating surface opposite to the first mating surface. A plurality of slots arranged along a straight line are provided on the first mating surface. The movable seat is provided with a through hole, one end of which extends to the second matching surface, the steel ball is embedded in the through hole, and a part of the steel ball protrudes from the second matching surface and is placed in one of the slots to lock the freedom of movement of the movable seat relative to the fixed bracket; a movable block is provided on the movable seat at the other end of the through hole, the movable block is provided with an avoidance groove and a stop surface, and the movable block can be movably installed on the movable seat so that the movable block can move relative to the movable seat between a first position and a second position; when the movable block is in the first position, the stop surface blocks the other end of the through hole to prevent the steel ball from detaching from the slot, and when the movable block is in the second position, the avoidance groove is opposite to the other end of the through hole so that the steel ball can detach from the slot and a part of the steel ball can fall into the avoidance groove.
2. The adjustment structure according to claim 1, characterized in that: The movable seat is provided with a mounting groove extending in a straight line, the other end of the through hole is connected to the mounting groove, and the movable block is embedded in the mounting groove and can slide in the mounting groove.
3. The adjustment structure according to claim 2, characterized in that: The extension direction of the straight line is consistent with the up and down direction, so that the upper end of the mounting groove extends to the top surface of the movable seat to form an opening, the movable block is inserted into the mounting groove through the opening, and the top of the movable block protrudes from the opening to form a pressing portion; an elastic reset member is arranged between the movable block and the movable seat, the pressing portion is operated to move the movable block from the first position to the second position, and the elastic reset member is used to provide an elastic stress to push the movable block from the second position to the first position.
4. The adjustment structure according to claim 3, characterized in that: The lower end of the installation slot forms a blind end, the elastic reset piece is a spring, the upper end of the spring abuts against the bottom surface of the movable block, and the lower end of the spring abuts against the blind end of the installation slot.
5. The adjustment structure according to claim 3, characterized in that: A limit groove extending from bottom to top is provided on the movable seat, and the limit groove runs through the second mating surface to the installation groove. A limit piece is fixedly connected to the movable block in a detachable manner, and the limit piece is slidably embedded in the limit groove. The upper end and the lower end of the limit groove are used to limit the range of the upper and lower movements of the limit piece.
6. The adjustment structure according to claim 1, characterized in that: The avoidance groove includes an arc-shaped receiving portion and an inclined guide wall. One side of the receiving portion extends to the surface of the movable block facing the first mating surface, and the inclined guide wall extends from the other side of the receiving portion to the surface of the movable block facing the first mating surface. The inclined guide wall is used to push against the steel ball when the movable block moves from the second position to the first position so that the steel ball moves toward the first mating surface.
7. The adjustment structure according to claim 1, characterized in that: The fixed bracket is provided with a slide groove extending along a straight line, and the movable seat is slidably installed in the slide groove so that the movable seat can slide along a straight line relative to the fixed bracket.
8. The adjustment structure according to claim 7, characterized in that: The fixed bracket includes a backrest bracket and a fixed plate fixedly connected to the backrest bracket in a detachable manner, and a retaining rib is protruded from both sides of the fixed plate, and each retaining rib forms a sliding groove with the backrest bracket; two first ribs are protruded from the second mating surface of the movable seat, and second ribs extending toward each other are provided on the two first ribs, and a guide groove is formed between the two second ribs and the second mating surface, and the two second ribs are slidably embedded in the two sliding grooves, and the two retaining ribs are slidably embedded in the two guide grooves.
9. The adjustment structure according to claim 8, characterized in that: The backrest bracket is provided with a mounting groove, and the fixing plate is embedded in the mounting groove.
10. A seat, characterized in that: Comprising the regulating structure according to any one of claims 1-9.