Seat cushion front-back sliding adjusting mechanism

Abstract

The utility model discloses a seat cushion back-and-forth sliding adjusting mechanism which comprises a base, a sliding piece, a locking piece and a seat cushion, the seat cushion is fixed on the sliding piece, a first sliding hole is formed in the base, the sliding piece moves in the first sliding hole, a second sliding hole is further formed in the base, and the locking piece moves in the second sliding hole. The locking piece comprises an inserting plate, an elastic plate and a pushing block, an inserting hole is formed in the side face of the second sliding hole, a plurality of positioning grooves are formed in the side face of the sliding piece, the inserting plate is inserted into the inserting hole and inserted into the positioning grooves, and a pressing column is further formed on the base and located between the inserting plate and the elastic plate. According to the seat cushion, the pressing columns exert pressure on the inserting plates and the elastic plates through movement of the locking piece, the inserting plates move towards the inner side and are not inserted into the inserting holes any more, and the sliding piece can slide front and back to adjust the position of the seat cushion.

Description

Technical Field

[0001] The utility model relates to the technical field of learning seats, in particular to a front-back sliding adjustment mechanism for a seat cushion. Background Art

[0002] Existing learning seats generally can only adapt to different sitting postures by adjusting the front-back position of the backrest and the up-down position of the seat cushion. However, children of different heights have different sitting postures, and simply relying on the front-back adjustment of the backrest and the up-down adjustment of the seat cushion can no longer meet the usage requirements of children of all ages.

[0003] Therefore, a front-back sliding adjustment mechanism for a seat cushion is designed. By adjusting the front-back position of the seat cushion and combining with the adjustment of the backrest and seat cushion of the existing learning seat, the seat can meet the usage requirements of children of different ages. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a front-back sliding adjustment mechanism for a seat cushion. Through the movement of a locking member, a pressing column applies pressure to an insertion plate and an elastic plate, so that the insertion plate no longer inserts into a jack, avoiding the positioning of the insertion plate to a sliding member, enabling the sliding member to slide back and forth to adjust the position of the seat cushion. In the locked state, the insertion plate inserts into the jack and a positioning groove to fix the sliding member and the seat cushion.

[0005] The utility model provides the following technical solution: A front-back sliding adjustment mechanism for a seat cushion includes a base, a sliding member, a locking member, and a seat cushion. The seat cushion is fixed on the sliding member. A first sliding hole is formed in the base, and the sliding member moves in the first sliding hole. A second sliding hole is also formed in the base, and the locking member moves in the second sliding hole. The locking member includes an insertion plate, an elastic plate, and a push block. The insertion plate is formed at the end of the elastic plate. The elastic plate and the insertion plate are distributed at an angle. A jack is formed on the side of the second sliding hole. A plurality of positioning grooves are formed on the side of the sliding member. The insertion plate is inserted into the jack and into the positioning groove. A pressing column is also formed on the base, and the pressing column is located between the insertion plate and the elastic plate. The push block moves in the second sliding hole, causing the insertion plate to be squeezed inward by the pressing column, resulting in the insertion plate no longer being located in the jack and no longer limiting the sliding member.

[0006] In order to reset the elastic plate and the insertion plate, a first spring is also connected between the elastic plates.

[0007] In order to facilitate the installation and disassembly of the sliding member, a convex platform is formed on the edge of the first sliding hole, and an annular flange is formed on the side of the sliding member. The flange is arranged on the convex platform to enable the sliding member to move along the first sliding hole.

[0008] In order to guide the sliding direction of the locking member, a guide plate is also formed on the base, and the guide plate is located on both end faces of the locking member.

[0009] In order to limit the sliding stroke of the locking member, a guiding groove is formed in the locking member, and two positioning columns are formed on the base. The two positioning columns are respectively located on both sides inside the guiding groove to limit the sliding stroke of the locking member.

[0010] In order to enable the locking member to automatically reset, a second spring is provided between the positioning column and the inner wall of the guiding groove.

[0011] In order to limit the movement stroke of the locking member, grooves are formed on both side surfaces of the locking member, and an elastic plate is formed at one end of the groove. The elastic plate is located on one side of the guiding plate, and the guiding plate limits the sliding stroke of the elastic plate.

[0012] Furthermore, a push block is formed on the lower surface of the locking member, and the push block is formed by the locking member being recessed downward.

[0013] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows:

[0014] (1) By the movement of the locking member, the pressure column applies pressure to the plug board and the elastic plate, so that the plug board is no longer inserted into the jack, avoiding the positioning of the sliding member by the plug board, enabling the sliding member to slide back and forth to adjust the position of the cushion. When in the locked state, the plug board is inserted into the jack and the positioning groove to fix the sliding member and the cushion.

[0015] (2) By providing the first spring and the second spring, the locking member applies pressure to the first spring and the second spring after moving, causing the first spring and the second spring to be compressed, thereby generating elastic force. Under the action of the elastic force, the locking member realizes automatic reset, further ensuring the locking of the sliding member and the cushion, and avoiding the cushion being in a sliding state, thus eliminating potential safety hazards. Description of the Drawings

[0016] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0017] Figure 1 is a three-dimensional view of the overall structure of the present utility model;

[0018] Figure 2 is a three-dimensional view of the bottom view of the overall structure of the present utility model;

[0019] Figure 3 is a top view of the overall structure of the present utility model;

[0020] Figure 4 is an exploded view of the overall structure of the present utility model;

[0021] Figure 5It is a schematic diagram of the internal structure of the present utility model;

[0022] Figure 6 It is a schematic diagram of the structure of the sliding member of the present utility model;

[0023] Figure 7 It is a schematic diagram of the structure of the locking member of the present utility model;

[0024] In the figure: 1, base; 11, first sliding hole; 111, boss; 12, second sliding hole; 13, positioning post; 14, pressing post; 15, guiding plate; 2, seat cushion; 3, locking member; 31, pushing block; 32, guiding groove; 33, elastic plate; 34, inserting plate; 35, first spring; 36, second spring; 37, groove; 4, sliding member; 41, positioning groove; 42, flange. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. Embodiment

[0026] Please refer to Figures 1 to 7, the present utility model provides a technical solution: a front and rear sliding adjustment mechanism for a seat cushion, including a base 1, a sliding member 4, a locking member 3, and a seat cushion 2. The seat cushion 2 is fixed on the sliding member 4. A first sliding hole 11 is formed in the base 1, and the sliding member 4 moves within the first sliding hole 11. A second sliding hole 12 is also formed in the base 1, and the locking member 3 moves within the second sliding hole 12. The first sliding hole 11 and the second sliding hole 12 face the same direction. The locking member 3 includes an insertion plate 34, an elastic plate 33, and a push block 31. The insertion plate 34 is formed at the end of the elastic plate 33, and the elastic plate 33 and the insertion plate 34 are distributed at an angle. A jack is formed on the side of the second sliding hole 12, and a plurality of positioning grooves 41 are formed on the side of the sliding member 4. The insertion plate 34 is inserted into the jack and into the positioning groove 41 to position and lock the sliding member 4, thereby fixing the position of the seat cushion 2 on the sliding member 4. A pressing column 14 is also formed on the base 1, and the pressing column 14 is located between the insertion plate 34 and the elastic plate 33. When the push block 31 moves within the second sliding hole 12, it will drive the entire locking member 3 to move, causing the insertion plate 34 to be squeezed inward by the pressing column 14 and no longer located within the jack, no longer limiting the sliding member 4. At this time, the seat cushion 2 can be moved freely to adjust the front and rear position of the seat cushion 2. After the adjustment is completed, the push block 31 can be pushed in the reverse direction again to reset the push block 31. In this way, the elastic plate 33 and the insertion plate 34 will move toward one end, so that the insertion plate 34 is no longer squeezed by the pressing column 14. Under the elastic force of the elastic plate 33, the insertion plate 34 will move toward both sides again, insert into the jack to limit the sliding member 4, and fix the position of the sliding member 4 and the seat cushion 2. By moving the push block 31 to control the position of the locking member 3, the insertion plate 34 is inserted into the jack to position the sliding member 4 and fix the position of the seat cushion 2, or the insertion plate 34 is squeezed by the pressing column 14 so that the insertion plate 34 no longer positions the sliding member 4, facilitating the front and rear sliding adjustment of the position of the seat cushion 2.

[0027] As Figure 5 shown, a first spring 35 is also connected between the elastic plates 33. The first spring 35 can be compressed when the insertion plate 34 is under pressure, generating an elastic force to enable the insertion plate 34 and the elastic plate 33 to achieve automatic reset, further ensuring the locking of the seat cushion 2 and improving safety.

[0028] As Figure 5 and 6 shown, a convex platform 111 is formed on the edge of the first sliding hole 11, and an annular flange 42 is formed on the side of the sliding member 4. The flange 42 is arranged on the convex platform 111, making the installation and disassembly of the sliding member 4 convenient, and the sliding member 4 moves along the first sliding hole 11.

[0029] As Figure 5 shown, a guide plate 15 is also formed on the base 1. The guide plate 15 is located on both end faces of the locking member 3. The guide plate 15 limits the sliding of the locking member 3 to ensure the sliding direction of the locking member 3.

[0030] A guiding groove 32 is formed in the locking member 3, and two positioning posts 13 are formed on the base 1. The two positioning posts 13 are both located in the guiding groove 32 and are respectively located on both inner sides of the guiding groove 32 to limit the sliding stroke of the locking member 3 and prevent the locking member 3 from slipping off the base 1.

[0031] A second spring 36 is arranged between the positioning post 13 and the inner wall of the guiding groove 32. The second spring 36 can be compressed after the locking member 3 slides, so as to provide elastic force to reset the locking member 3 and reduce the pressure on the plug board 34.

[0032] As Figure 5 shown, grooves 37 are formed on both side surfaces of the locking member 3. An elastic plate 33 is formed at one end of the groove 37. The elastic plate 33 is located on one side of the guiding plate 15. The guiding plate 15 can block the movement of the elastic plate 33 to limit the sliding stroke of the elastic plate 33 and prevent the locking member 3 from slipping off the base 1.

[0033] As Figure 7 shown, a push block 31 is formed on the lower surface of the locking member 3. The push block 31 is formed by recessing downward from the locking member 3, which reduces the weight of the push block 31, integrally forms the push block 31 and the locking member 3, enhances the connection strength between the two, and extends the service life.

[0034] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A seat cushion forward and backward sliding adjustment mechanism, comprising a base, a sliding member, a locking member and a seat cushion, wherein the seat cushion is fixed on the sliding member, and is characterized in that: The base is provided with a first sliding hole, the sliding member moves in the first sliding hole, the base is also provided with a second sliding hole, the locking member moves in the second sliding hole, the locking member comprises an insert plate, an elastic plate and a push block, the insert plate is formed at the end of the elastic plate, the elastic plate and the insert plate are distributed at an angle, a plug hole is provided on the side of the second sliding hole, a plurality of positioning grooves are formed on the side of the sliding member, the insert plate is plugged into the plug hole and inserted into the positioning groove, a pressure column is also formed on the base, the pressure column is located between the insert plate and the elastic plate, the push block moves in the second sliding hole, so that the insert plate is squeezed by the pressure column and moves inward, resulting in the insert plate no longer being located in the plug hole and no longer limiting the sliding member.

2. The seat cushion forward and backward sliding adjustment mechanism according to claim 1, characterized in that: A first spring is also connected between the elastic plates.

3. The seat cushion forward and backward sliding adjustment mechanism according to claim 1, characterized in that: A boss is formed on the edge of the first sliding hole, and an annular flange is formed on the side of the sliding member. The flange is arranged on the boss so that the sliding member moves along the first sliding hole.

4. The seat cushion forward and backward sliding adjustment mechanism according to claim 1, characterized in that: A guide plate is also formed on the base, and the guide plate is located on both end surfaces of the locking member.

5. The seat cushion forward and backward sliding adjustment mechanism according to claim 1, characterized in that: A guide groove is provided in the locking member, and two positioning columns are formed on the base. The two positioning columns are respectively located on both sides of the guide groove to limit the sliding stroke of the locking member.

6. The seat cushion forward and backward sliding adjustment mechanism according to claim 5, characterized in that: A second spring is arranged between the positioning column and the inner wall of the guide groove.

7. The seat cushion forward and backward sliding adjustment mechanism according to claim 4, characterized in that: Grooves are formed on both side surfaces of the locking member, an elastic plate is formed on one end of the groove, the elastic plate is located on one side of the guide plate, and the guide plate limits the sliding travel of the elastic plate.

8. The seat cushion forward and backward sliding adjustment mechanism according to claim 1, characterized in that: The push block is formed on the lower surface of the locking member, and the push block is formed by being recessed downwards by the locking member.

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