Seat structure with cushion capable of being adjusted front and back

Abstract

The utility model discloses a seat structure with a cushion capable of being adjusted front and back. The seat structure comprises a seat frame and the cushion, the cushion is movably arranged on the chair frame in a front-back adjustable manner; a sliding groove and a plurality of clamping positions are concavely arranged at the bottom of the cushion, the sliding groove extends front and back, a sliding block is arranged in the sliding groove, and the clamping positions are arranged front and back at intervals; the rear side of the chair frame is hinged to the sliding block, and a clamping point is arranged on the front side of the chair frame. The rear side of the chair frame is hinged to the sliding block, the clamping points are arranged on the front side of the chair frame, the elastic pressing mechanism is arranged in a matched mode, the elastic pressing mechanism is used for enabling the cushion to be pressed downwards so that the clamping points can be kept clamped in the corresponding clamping positions, and when the chair is used, only acting force needs to be applied to the front side of the cushion to enable the cushion to be turned upwards, then the cushion is pulled forwards or pushed backwards, and then the cushion is loosened. The locking mechanism does not need to be independently unlocked and locked manually, operation and use are very easy, convenient and rapid, meanwhile, components such as a motor do not need to be used, the manufacturing cost is effectively saved, and the market competitiveness of products is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to furniture field technology especially is a seat structure that seat cushion can be adjusted before and after. BACKGROUND

[0002] The seat cushion adjustable seat refers to the seat cushion part of the seat can move forward and backward within a certain range to adapt to the needs of different users or different use scenarios. This design usually appears in office chairs, car seats, racing seats and other occasions that need to meet different body types and use preferences. By adjusting the forward and backward position of the seat cushion, the user can ensure that his hips, waist and back are optimally supported, thereby maintaining the correct sitting posture and reducing physical fatigue and discomfort. This adjustment function helps to adapt to people of different heights, body types or sitting habits, improving the comfort and applicability of the seat.

[0003] The forward and backward adjustment of the seat cushion may vary depending on the brand and model of the seat, but generally includes electric adjustment and manual adjustment. Among them, the electric adjustment is driven by a motor, and the user only needs to press a button or turn a switch to complete the adjustment. Although this structure is easy to use, it requires the use of a motor and other components, which is very costly. Manual adjustment uses a separate locking mechanism to lock the seat cushion. When in use, the user needs to manually unlock the locking mechanism first, then pull or push the seat cushion forward or backward, and then manually lock the locking mechanism. This way is very cumbersome to operate and inconvenient to use. Therefore, it is necessary to study a scheme to solve the above problems. SUMMARY

[0004] Therefore, the utility model provides a seat cushion adjustable seat structure, which can effectively solve the problems of high cost or inconvenience of the existing seat forward and backward adjustment structure.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A seat cushion adjustable seat structure, comprising a chair frame and a seat cushion, the seat cushion is movably arranged on the chair frame, the bottom of the seat cushion is concave with a sliding groove and a plurality of clamping positions, the sliding groove extends forward and backward, a sliding block is arranged in the sliding groove, the sliding block slides back and forth along the sliding groove, the plurality of clamping positions are arranged in front of and behind each other, the rear side of the chair frame is hinged with the sliding block, the front side of the chair frame has a clamping point, the clamping point is below the plurality of clamping positions and clamped with the corresponding clamping position, the seat cushion is arranged reversibly relative to the chair frame, and the front side of the seat is provided with a springing mechanism, the springing mechanism promotes the seat cushion to be pressed down so that the clamping point is clamped in the corresponding clamping position.

[0007] As a preferred scheme, the bottom of the cushion is concave, the sliding groove is recessed in the inner side wall of the concave cavity, and the plurality of clamping positions are recessed in the inner bottom surface of the concave cavity.

[0008] As a preferred scheme, the left and right inner side walls of the concave cavity are recessed to form sliding grooves, the two sliding grooves are symmetrically arranged, a plurality of clamping positions are arranged beside each sliding groove, and the clamping points and the elastic pressing mechanisms are symmetrically arranged.

[0009] As a preferred scheme, the chair frame comprises a horizontal rod and a support piece, the horizontal rod extends horizontally, the support piece is fixed to the horizontal rod, the support piece extends longitudinally, the rear end of the support piece is hingedly connected to the sliding block through a pin shaft, the clamping point is located at the front end of the support piece, and the elastic pressing mechanism is arranged on the support piece.

[0010] As a preferred scheme, the support piece is provided with a guide groove, and the elastic pressing mechanism comprises a housing, a movable piece, a spring and a pressing rod; the housing is fixed to the outer side surface of the support piece, the movable piece is movably arranged in the housing, the spring is arranged in the housing and drives the movable piece to move downward, and the pressing rod is fixedly connected with the movable piece, extends transversely and extends into the sliding groove through the guide groove, and abuts against the lower bottom surface of the sliding groove.

[0011] As a preferred scheme, the movable piece is T-shaped, and the spring is symmetrically arranged in front of and behind the movable piece, and the two springs act on the front and rear sides of the movable piece to provide sufficient elastic pressing force.

[0012] As a preferred scheme, the housing is fixedly installed on the support piece through screws, and the structure is simple and easy to assemble.

[0013] As a preferred scheme, the support piece is symmetrically arranged in front of and behind the movable piece, and the connection structure is more stable.

[0014] As a preferred scheme, the opening of the sliding groove faces backward, the sliding block is loaded into the sliding groove from the rear end opening of the sliding groove, and the rear side of the cushion is fixedly provided with a limiting block through screws, the limiting block seals the rear end opening of the sliding groove, so that the sliding block is prevented from easily falling out of the sliding groove.

[0015] Compared with the prior art, the utility model has obvious advantages and beneficial effects, specifically speaking, according to the above technical scheme, the utility model has the advantages that:

[0016] By hinging the rear side of the chair frame with the sliding block, setting the clamping point on the front side of the chair frame, and cooperating with the elastic pressing mechanism, the elastic pressing mechanism is used to press the cushion downward to make the clamping point keep clamped in the corresponding clamping position, when in use, only need to exert force on the front side of the cushion to make the cushion turn up, then pull or push the cushion forward, and then release the cushion, without manually unlocking and locking the locking mechanism separately, the operation is very simple and fast, meanwhile, without using the motor and other components, the manufacturing cost is effectively saved, and the market competitiveness of the product is greatly improved.

[0017] In order to more clearly set forth the structural features and functions of the present application, the present application will be described in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the assembled perspective view of the preferred embodiment of the present application;

[0019] Figure 2 is the assembled perspective view of the preferred embodiment of the present application from another angle;

[0020] Figure 3 is the partial assembled view of the preferred embodiment of the present application;

[0021] Figure 4 is Figure 3 the schematic view from another angle;

[0022] Figure 5 is Figure 3 the exploded view of the preferred embodiment of the present application;

[0023] Figure 6 is Figure 3 the cross-sectional view of the preferred embodiment of the present application;

[0024] Figure 7 is Figure 3 the another cross-sectional view of the preferred embodiment of the present application.

[0025] Explanation of the drawings:

[0026] 10, chair frame 11, horizontal rod

[0027] 12, support sheet 13, pin shaft

[0028] 101, clamping point 102, round hole

[0029] 103, guide groove 20, cushion

[0030] 21, sliding block 22, screw

[0031] 23, limiting block 201, sliding groove

[0032] 202, clamping position 203, recess

[0033] 30, elastic pressing mechanism 31, housing

[0034] 32, movable piece 33, spring

[0035] 34, pressing rod 35, screw. DETAILED DESCRIPTION

[0036] Please refer to Figures 1 to 7 Fig. 1 shows the specific structure of the preferred embodiment of the present application, which comprises a chair frame 10 and a cushion 20.

[0037] The front side of the chair frame 10 is provided with a clamping point 101. Specifically, the chair frame 10 comprises a horizontal rod 11 and a support sheet 12. The horizontal rod 11 extends horizontally left and right. The support sheet 12 is fixed to the horizontal rod 11 and extends vertically front and back. In this embodiment, the horizontal rod 11 is a metal round pipe, and the support sheet 12 is a metal sheet. The support sheet 12 is triangular in shape, and a round hole 102 is formed in the support sheet 12. The horizontal rod 11 passes through the round hole 102 and is welded and fixed to the support sheet 12. The clamping point 101 is located at the front end of the support sheet 12 and is square in structure. In addition, the support sheet 12 is symmetrically arranged left and right. Furthermore, a guide groove 103 is formed in the support sheet 12.

[0038] The cushion 20 is adjustably arranged on the chair frame 10 front and back. The bottom of the cushion 20 is recessed with a sliding groove 201 and a plurality of clamping points 202. The sliding groove 201 extends front and back. A sliding block 21 is arranged in the sliding groove 201 and slides back and forth along the sliding groove 201. The plurality of clamping points 202 are arranged front and back at intervals. The rear side of the chair frame 10 is hinged to the sliding block 21. The clamping point 101 is located below the plurality of clamping points 202 and is clamped with the corresponding clamping point 202. The cushion 20 is arranged on the chair frame 10 and can be flipped up and down. In the embodiment, the bottom of the cushion 20 is recessed with a recess 203. The sliding groove 201 is recessed in the inner side wall of the recess 203. The plurality of clamping points 202 are recessed in the inner bottom surface of the recess 203. The plurality of clamping points 202 are located beside the sliding groove 201, and each clamping point 202 is a square recess. In addition, the recess 203 is recessed with a sliding groove 201 on both left and right inner side walls. The two sliding grooves 201 are symmetrically arranged left and right. A plurality of clamping points 202 are arranged beside each sliding groove 201. Correspondingly, the clamping point 101 is symmetrically arranged left and right, and the two clamping points 101 are located at the front ends of the two support sheets 12. Furthermore, the rear end of the support sheet 12 is hinged to the sliding block 21 through a pin shaft 13. In addition, the opening of the sliding groove 201 faces the rear. The sliding block 21 is loaded into the sliding groove 201 from the rear end opening of the sliding groove 201. The rear side of the cushion 20 is fixed with a limiting block 23 through a screw 22. The limiting block 23 covers the rear end opening of the sliding groove 201 to prevent the sliding block 21 from easily coming out of the sliding groove 201.

[0039] The front side of the seat 10 is provided with a spring pressing mechanism 30, which promotes the downward pressing of the cushion 20 to make the clamping point 101 remain clamped in the corresponding clamping position 202. In the embodiment, the spring pressing mechanism 30 is arranged on the support piece 12. Moreover, the spring pressing mechanism 30 is arranged in a left-right symmetry, and two spring pressing mechanisms 30 are arranged on the two support pieces 12 respectively. Specifically, the spring pressing mechanism 30 comprises a housing 31, a movable piece 32, a spring 33 and a pressing rod 34. The housing 31 is fixed on the outer side of the support piece 12, the movable piece 32 is arranged in the housing 31 and can move up and down, the spring 33 is arranged in the housing 31 and promotes the downward movement of the movable piece 32, and the pressing rod 34 is fixedly connected with the movable piece 32 and extends transversely and penetrates through the guide groove 103 to extend into the sliding groove 201, and the pressing rod 34 presses the lower bottom surface of the sliding groove 201. In the embodiment, the housing 31 is fixedly installed on the support piece 12 by means of the screw 35. The movable piece 32 is T-shaped, and the spring 33 is arranged in a front-rear symmetry, and two springs 33 act on the front and rear sides of the movable piece 32 to provide sufficient spring pressing force.

[0040] The use method of the embodiment is described in detail as follows:

[0041] When the front and rear positions of the cushion 20 need to be adjusted, first, an acting force is applied to the front side of the cushion 20 by hand to overcome the action of the spring 33, so that the cushion 20 is turned upward, at this time, the front side of the cushion 20 is upturned, so that the clamping point 101 is separated from the original clamping position 202, then the cushion 20 is pulled forward or pushed backward according to the front and rear positions to be adjusted, the sliding block 21 slides forward and backward along the sliding groove 201, when the position to be adjusted is adjusted, the cushion 20 is released, under the action of the spring 33, the pressing rod 34 promotes the downward turning of the cushion 20 to reset, at this time, the clamping point 101 is clamped in another clamping position 202 to be positioned, at this time, the cushion 20 is fixed and cannot move forward and backward.

[0042] The design emphasis of the utility model lies in: the rear side of the chair frame is hinged with the sliding block, the clamping point is arranged on the front side of the chair frame, and the spring pressing mechanism is arranged in cooperation, the spring pressing mechanism promotes the downward pressing of the cushion to make the clamping point remain clamped in the corresponding clamping position, when used, only need to apply an acting force to the front side of the cushion to make the cushion turn upward, then the cushion is pulled forward or pushed backward, and then the cushion is released, without manually unlocking and locking the locking mechanism separately, the operation and use are very simple and fast, meanwhile, without using motors and other components, the manufacturing cost is effectively saved, and the market competitiveness of the product is greatly improved.

[0043] The above merely describes the preferred embodiment of the present application, and is not intended to limit the technical scope of the present application in any way. Any slight modification, equivalent change, and modification made according to the technical essence of the present application shall still fall within the scope of the technical scheme of the present application.

Claims

1. A seat structure with an adjustable seat cushion, comprising a chair frame and a seat cushion; the seat cushion is movably and adjustable on the chair frame; characterized in that: The bottom of the seat cushion has a recessed groove and multiple locking positions. The groove extends back and forth and a slider is provided in the groove. The slider slides back and forth along the groove. The multiple locking positions are arranged at intervals. The rear side of the chair frame is hinged to the slider, and the front side of the chair frame has locking points. The locking points are located below the multiple locking positions and engage with the corresponding locking positions. The seat cushion can be flipped up and down relative to the chair frame. The front side of the seat is provided with a spring-loaded mechanism. The spring-loaded mechanism causes the seat cushion to press down so that the locking points are locked in the corresponding locking positions.

2. The seat structure with an adjustable seat cushion according to claim 1, characterized in that: The bottom of the cushion has a recessed cavity, the slide groove is recessed in the inner wall of the cavity, the multiple clips are recessed in the inner bottom surface of the cavity, and the multiple clips are located on the side of the slide groove.

3. The seat structure with an adjustable seat cushion according to claim 2, characterized in that: The inner walls of the cavity on both sides are recessed to form grooves. The two grooves are symmetrically arranged on the left and right. A number of locking positions are arranged on the side of each groove. Correspondingly, the locking points and the spring pressing mechanism are two symmetrically arranged on the left and right.

4. The seat structure with an adjustable seat cushion according to claim 1, characterized in that: The chair frame includes a crossbar and a support plate. The crossbar extends laterally to the left and right. The support plate is fixed to the crossbar and extends longitudinally to the front and back. The rear end of the support plate is hinged to a slider via a pin. The locking point is located at the front end of the support plate. The spring-loaded mechanism is provided on the support plate.

5. The seat structure with an adjustable seat cushion according to claim 4, characterized in that: The support plate is provided with a guide groove. The spring-loaded mechanism includes a housing, a movable part, a spring, and a pressing rod. The housing is fixed to the outer side of the support plate. The movable part is movably disposed inside the housing. The spring is disposed inside the housing and causes the movable part to move downward. The pressing rod is fixedly connected to the movable part. The pressing rod extends laterally and passes through the guide groove into the slide groove, and the pressing rod presses against the bottom surface of the slide groove.

6. The seat structure with an adjustable seat cushion according to claim 5, characterized in that: The movable component is T-shaped, and there are two springs arranged symmetrically at the front and back, with the two springs acting on the front and back sides of the movable component.

7. The seat structure with an adjustable seat cushion according to claim 5, characterized in that: The housing is fixedly installed to the support plate by screws.

8. The seat structure with an adjustable seat cushion according to claim 4, characterized in that: The support plates are two pieces arranged symmetrically on the left and right.

9. The seat structure with an adjustable seat cushion according to claim 2, characterized in that: The opening of the slide groove faces rearward. The slider is inserted into the slide groove from the rear opening of the slide groove, and a limit block is fixed to the rear side of the seat cushion by screws. The limit block seals the rear opening of the slide groove.

Images