Seat and seat depth adjusting mechanism thereof

Abstract

The utility model relates to the field of seats, in particular to a seat and a seat depth adjusting mechanism thereof. A seat depth adjusting mechanism comprises a tray and a seat arranged on the tray. Guide blocks arranged in the front-back direction are constructed on the left side and the right side of the tray, and tooth grooves are constructed in the guide blocks at intervals. The chair seat is clamped on the guide blocks on the two sides and can slide back and forth along the guide blocks, and a locking assembly used for being clamped into and retreated from the tooth grooves is constructed in the chair seat; the locking assembly comprises a locking block and a spring acting on the locking block. Lock teeth for clamping the tooth grooves are constructed at the inner ends of the lock blocks, and shifting handles are constructed at the outer ends of the lock blocks; when the locking block is only under the action of the spring, the locking teeth are clamped into the tooth grooves, so that the chair seat and the guide block are positioned and locked; when external force acts on the shifting handle, the locking teeth retreat from the tooth grooves, and the chair seat can slide back and forth along the guide block. According to the scheme, the chair seat can slide back and forth on the tray so as to adjust the seat depth, and the application range is wider.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of seat, especially to a seat and seat depth adjusting mechanism thereof. BACKGROUND

[0002] With the rapid development of science and technology and the increasing social pressure, health has become an important topic that the society pays more and more attention to. The sedentary group quantity is continuously increased due to the sedentary brain work, and more and more people produce various diseases caused by the sedentary behavior due to the fast-paced lifestyle and the increasing job pressure. Ultimately, the reason for the sedentary is that the time limit for work generally will not easily leave the seat to do exercise. Therefore, people more urgently hope to achieve the purpose of exercise through less time and more exercise, that is, the fragmentation of exercise, and avoid the annoyance caused by occupational diseases. Because of the immersion work, people often forget to walk or do some body stretching.

[0003] The seat depth adjustment on the previous seat mainly focuses on supporting the waist of the passenger, so that the seat depth adjustment basically adjusts the position of the waist rest assembly, and is rarely adjusted on the seat. SUMMARY

[0004] In order to solve the above problems, the first purpose of the utility model is to provide a seat depth adjusting mechanism, which can realize the forward and backward sliding of the seat on the tray to adjust the seat depth, and has wider application range.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A seat depth adjusting mechanism, comprising a tray and a seat arranged on the tray, characterized in that: the left and right sides of the tray are provided with guide blocks arranged in the front and back directions, and the guide blocks are provided with tooth grooves at intervals; the seat is clamped on the guide blocks and can slide forward and backward along the guide blocks, and the seat is internally provided with a locking assembly for clamping into and out of the tooth groove; the locking assembly comprises a locking block movably arranged in the seat, and a spring acting on the locking block; the inner end of the locking block is provided with a locking tooth for clamping the tooth groove, and the outer end of the locking block is provided with a handle extending out of the side wall of the seat; when the locking block is only under the action of the spring, the locking tooth is clamped into the tooth groove to position and lock the seat and the guide block; when external force acts on the handle, the locking tooth exits the tooth groove, and the seat can slide forward and backward along the guide block.

[0007] The utility model discloses adopt above -mentioned technical scheme, this technical scheme relates to a kind of seat depth adjustment mechanism, guiding block is provided in the seat depth adjustment mechanism left and right two sides, chair seat is clamped on the guiding block of two sides and can slide along guiding block forwards and backwards, so that the forwards and backwards sliding of chair seat on tray thereby adjusts seat depth.Further, the guiding block in the present scheme is constructed with gear slot at interval, locking assembly for being inserted and withdrawn in the gear slot is constructed in the inside of chair seat, spring in locking assembly acts on lock block, when removing external force, lock tooth will be inserted into the gear slot, so that chair seat and guiding block are positioned and locked, thereby making chair seat position fixed.And when external force acts on the handle, spring is compressed, lock tooth is withdrawn in the gear slot, so seat depth can be adjusted.

[0008] Based on the above scheme, the forwards and backwards sliding of chair seat on tray can be realized to adjust seat depth, and the application range is wider.

[0009] As preferred, the chair seat includes a base plate, a cover fixed to the base plate, and a flexible cushion covering an upper end of the cover. In a further preferred scheme, an edge of the cover is upwardly protruded, and a groove is formed on an upper end surface of the cover; and the flexible cushion is partially embedded in the groove on the upper end of the cover. In this scheme, the cover is closed on the base plate to hide and store the adjusting structure, avoiding the adjusting structure from being interfered, including the stability of seat depth adjustment. The groove is formed on the upper end surface of the cover, and the flexible cushion is partially embedded in the groove on the upper end of the cover, so that the combination degree of the flexible cushion and the cover can be increased.

[0010] In a specific scheme, an adjusting cavity is constructed in the inside of the base plate, and a guide column is arranged in the adjusting cavity; a sliding groove is arranged on the lock block; and when the lock block is movably embedded in the adjusting cavity, the guide column is inserted into the sliding groove. In this scheme, the lock block moves in the adjusting cavity, and the guide column cooperates with the sliding groove to limit the moving direction of the lock block.

[0011] In a specific embodiment, a bottom cover plate is detachably connected to a lower end surface of the base plate, and a sliding chamber is constructed between the bottom cover plate and the base plate, and the guide block is inside the sliding chamber. When installing, the base plate of the chair seat is placed above the guide block first, and then the bottom cover plate is connected and installed on the lower end surface of the base plate, so that the guide block is inside the sliding chamber.

[0012] As preferred, a baffle is constructed on both sides of the sliding chamber of the base plate or the bottom cover plate, which can limit the moving range of the guide block in the sliding chamber, avoiding the guide block from escaping from the sliding chamber.

[0013] In a further preferred scheme, the top surface or bottom surface of the guide block is provided with elastic pressing strips arranged in left-right direction, and the lower end surface of the bottom plate or the upper end surface of the bottom sealing plate is provided with a front-rear direction arranged rib; the end of the elastic pressing strip is pressed against the rib and can slide along the rib. In this scheme, the cooperation of the elastic pressing strip and the rib can avoid the product loose feeling caused by the gap.

[0014] As preferred, the bottom plate is provided with a positioning table at the front end of the sliding chamber, and is provided with a positioning protrusion at the rear end of the sliding chamber; the front end of the bottom sealing plate is provided with a positioning end head matched with the positioning table, and the rear end is provided with a positioning groove matched with the positioning protrusion. During installation, the front end of the bottom sealing plate is first positioned and aligned, i.e. the positioning end head is matched with the positioning table, and then the rear end of the bottom sealing plate is positioned and aligned, i.e. the positioning groove of the bottom sealing plate is aligned with the positioning protrusion, so as to ensure the alignment and positioning of the bottom sealing plate and the bottom plate, and the locking through the screwing component.

[0015] The second object of the utility model is to provide a seat, characterized in that: comprising the seat depth adjusting mechanism as described above. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the seat.

[0017] Figure 2 It is a structural exploded view of the seat depth adjusting mechanism.

[0018] Figure 3 It is a schematic view of the sliding locking structure in the tray.

[0019] Figure 4 It is a schematic view of the bottom sealing plate being detached from the bottom plate.

[0020] Figure 5 It is a schematic view of the assembly of the bottom sealing plate and the seat.

[0021] Figure 6 It is a schematic view of the cooperation of the guide block and the bottom sealing plate.

[0022] Figure 7 It is a structural schematic view of the bottom sealing plate. DETAILED DESCRIPTION

[0023] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation of the utility model.

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] Example 1:

[0029] like Figures 1-7The embodiment relates to a seat depth adjusting mechanism, which comprises a tray (1) and a seat (2) arranged on the tray (1). The tray (1) is provided with guide blocks (11) arranged in the front-rear direction on the left and right sides, and the guide blocks (11) are provided with tooth grooves (110) at intervals. The seat (2) is clamped on the guide blocks (11) on the left and right sides and can slide forward and backward along the guide blocks (11), and the seat (2) is internally provided with a locking assembly (3) used for clamping and releasing the tooth grooves (110). The locking assembly (3) comprises a locking block (31) movably arranged in the seat (2) and a spring acting on the locking block (31). The inner end of the locking block (31) is provided with a locking tooth (36) used for clamping the tooth groove (110), and the outer end of the locking block (31) is provided with a handle (33) extending out of the side wall of the seat (2). When the locking block (31) is only under the action of the spring, the locking tooth (36) is clamped into the tooth groove (110) to positionally lock the seat (2) and the guide block (11). When external force acts on the handle (33), the locking tooth (36) is released from the tooth groove (110), and the seat (2) can slide forward and backward along the guide block (11).

[0030] The tray (1) in the seat depth adjusting mechanism is provided with guide blocks (11) on the left and right sides, the seat (2) is clamped on the guide blocks (11) on the left and right sides and can slide forward and backward along the guide blocks (11), so that the seat (2) slides forward and backward on the tray (1) to adjust the seat depth. Further, the guide blocks (11) are provided with tooth grooves (110) at intervals, the seat (2) is internally provided with a locking assembly (3) used for clamping and releasing the tooth grooves (110), the spring in the locking assembly (3) acts on the locking block (31), and when the external force is removed, the locking tooth (36) is clamped into the tooth groove (110) to positionally lock the seat (2) and the guide block (11), so that the position of the seat (2) is fixed. When external force acts on the handle (33), the spring is compressed, and the locking tooth (36) is released from the tooth groove (110), so that the seat depth can be adjusted. Based on the above scheme, the seat (2) can slide forward and backward on the tray (1) to adjust the seat depth, and the application range is wider.

[0031] As Figure 2As shown, the chair seat (2) comprises a base plate (21), a cover (22) fixed to the base plate (21), and a flexible cushion (23) wrapped on the upper end of the cover (22). In a further preferred embodiment, the edge of the cover (22) is upwardly convex, and a groove (221) is formed on the upper end surface of the cover (22). The flexible cushion (23) is partially embedded in the groove (221) on the upper end of the cover (22). In this embodiment, the cover (22) is arranged on the base plate (21) to hide and accommodate the adjusting structure, avoiding interference with the adjusting structure, including seat depth adjustment stability. The groove (221) is formed on the upper end surface of the cover (22), and the flexible cushion (23) is partially embedded in the groove (221) on the upper end of the cover (22), which can increase the bonding degree of the flexible cushion (23) and the cover (22).

[0032] In the specific embodiment as shown, Figure 2 In the specific embodiment as shown,

[0033] In the specific embodiment as shown, Figures 4-7 As shown, the lower end surface of the base plate (21) is detachably connected with a bottom cover plate (4), and a sliding chamber (40) is formed between the base plate (21) and the bottom cover plate (4), and the guide block (11) is inside the sliding chamber (40). During installation, the base plate (21) of the chair seat (2) is first placed above the guide block (11), and then the bottom cover plate (4) is connected and installed on the lower end surface of the base plate (21), so that the guide block (11) is inside the sliding chamber (40). As a preferred embodiment, the base plate (21) or the bottom cover plate (4) is provided with a baffle on both sides of the sliding chamber (40), which can limit the movement range of the guide block (11) in the sliding chamber (40), avoiding the guide block (11) from being pulled out of the sliding chamber (40).

[0034] In a further preferred embodiment, the top surface or the bottom surface of the guide block (11) is provided with a left-right direction arranged elastic pressing strip (111), and the lower end surface of the base plate (21) or the upper end surface of the bottom cover plate (4) is provided with a front-rear direction arranged rib. The end of the elastic pressing strip (111) is pressed against the rib and can slide along the rib. In this embodiment, the cooperation of the elastic pressing strip (111) and the rib can avoid the loose feeling caused by the gap.

[0035] In addition, the bottom plate (21) is provided with a positioning platform (212) at the front end of the sliding chamber (40), and is provided with a positioning protrusion (213) at the rear end of the sliding chamber (40). The front end of the bottom sealing plate (4) is provided with a positioning end (41) matched with the positioning platform (212), and the rear end is provided with a positioning groove (42) matched with the positioning protrusion (213). During installation, first, the front end of the bottom sealing plate (4) is positioned and aligned, that is, the positioning end (41) is matched with the positioning platform (212), and then the rear end of the bottom sealing plate (4) is positioned and aligned, that is, the positioning groove (42) of the bottom sealing plate (4) is aligned with the positioning protrusion (213), so that the bottom sealing plate (4) and the bottom plate (21) can be aligned and positioned, and can be locked by a screwing part.

[0036] Embodiment 2:

[0037] The second purpose of the utility model lies in providing a seat which comprises the seat depth adjusting mechanism described in embodiment 1.

[0038] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0039] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model. The ordinary skilled in the art can change, modify, replace and modify the above-mentioned embodiments in the range of the utility model without departing from the principles and purposes of the utility model.

Claims

1. A seat depth adjustment mechanism, comprising a tray (1) and a seat (2) disposed on the tray (1); characterized in that: The tray (1) has guide blocks (11) arranged in a front-to-back direction on its left and right sides, and the guide blocks (11) have toothed grooves (110) spaced apart on them; the chair seat (2) is clamped on the guide blocks (11) on both sides and can slide back and forth along the guide blocks (11), and the chair seat (2) has a locking assembly (3) inside for engaging and disengaging from the toothed grooves (110); the locking assembly (3) includes a locking block (31) movably disposed inside the chair seat (2) and a spring acting on the locking block (31); The inner end of the locking block (31) is provided with locking teeth (36) for engaging the tooth groove (110), and the outer end of the locking block (31) is provided with a lever (33) extending out of the side wall of the seat (2). The locking block (31) only engages the locking teeth (36) in the tooth groove (110) under the action of the spring, thereby positioning and locking the seat (2) and the guide block (11). When an external force is applied to the lever (33), the locking teeth (36) disengage from the tooth groove (110), and the seat (2) can slide back and forth along the guide block (11).

2. The seat depth adjustment mechanism according to claim 1, characterized in that: The chair seat (2) includes a chassis (21), a cover (22) fixed to the chassis (21), and a flexible cushion (23) covering the upper end of the cover (22).

3. The seat depth adjustment mechanism according to claim 2, characterized in that: The chassis (21) has an adjustment cavity (210) inside, and a guide post (211) is provided inside the adjustment cavity (210); the locking block (31) is provided with a sliding groove (311); when the locking block (31) is movably embedded in the adjustment cavity (210), the guide post (211) is inserted into the sliding groove (311).

4. The seat depth adjustment mechanism according to claim 2, characterized in that: A bottom sealing plate (4) is detachably connected to the lower end face of the chassis (21), and a sliding chamber (40) is formed between the bottom sealing plate (4) and the chassis (21), with the guide block (11) located inside the sliding chamber (40).

5. The seat depth adjustment mechanism according to claim 4, characterized in that: The chassis (21) or bottom sealing plate (4) has baffles on both sides of the sliding chamber (40).

6. The seat depth adjustment mechanism according to claim 4, characterized in that: The guide block (11) has an elastic pressure strip (111) arranged in the left-right direction on its top or bottom surface, and a rib arranged in the front-back direction is provided on the lower end surface of the chassis (21) or the upper end surface of the bottom sealing plate (4); the end of the elastic pressure strip (111) presses against the rib and can slide back and forth along the rib.

7. The seat depth adjustment mechanism according to claim 4, characterized in that: The chassis (21) has a positioning platform (212) built on the front end of the sliding chamber (40) and a positioning protrusion (213) built on the rear end of the sliding chamber (40); the bottom sealing plate (4) has a positioning end (41) adapted to the positioning platform (212) at the front end and a positioning groove (42) adapted to the positioning protrusion (213) at the rear end.

8. The seat depth adjustment mechanism according to claim 2, characterized in that: The edge of the cover (22) protrudes upward and a groove (221) is formed on the upper surface of the cover (22); the flexible cushion (23) is partially embedded in the groove (221) at the upper end of the cover (22).

9. A type of seat, characterized in that: Includes the seat depth adjustment mechanism as described in any one of claims 1 to 8.

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