Chair seat and office chair

Abstract

The utility model relates to a chair seat and office chair, including the chair seat frame and the seat cushion that is slidingly connected to the chair seat frame, the chair seat also includes the adjustment locking mechanism that is used for making the seat cushion be fixed relative to the chair seat frame when the seat cushion moves to the corresponding position, the adjustment locking mechanism is at least partially arranged on the chair seat frame, and the adjustment locking mechanism is at least partially arranged on the chair seat frame. The rest part of the adjusting and locking mechanism is arranged on the seat cushion, at least part of the adjusting and locking mechanism and the rest part of the adjusting and locking mechanism are matched and locked through a concave-convex structure, and a lower convex part with a foot rest rod insertion through hole is integrally formed on the bottom surface of the seat frame. The office chair has the advantages that a user can quickly change setting according to specific conditions, and meanwhile, the locking mechanism can effectively prevent accidental adjustment in the use process, so that the stability and safety of the office chair are ensured, and the risk of accidents is reduced; according to the chair seat with the foot rest function, the problems that in the prior art, a chair seat with the foot rest function is high in manufacturing cost and complexity are solved, and firmer and more stable connection is formed.

Description

Technical Field

[0001] The present invention relates to the field of office furniture, and more particularly to a chair seat and an office chair. Background Art

[0002] Office chairs are ergonomically designed for comfort and support, and are widely used in offices and workplaces. They typically feature adjustable height, tilt, and armrests to meet the needs of different users while supporting posture during extended periods of sitting. A high-quality office chair not only reduces spinal stress and improves productivity, but also improves posture and overall well-being. Modern office chairs often feature breathable seat fabrics and wheels, allowing users to move flexibly within the office environment.

[0003] In the prior art, the seat and seat cushion of an office chair need to be adjusted in a complicated manner and fixed in position, resulting in a poor user experience. In addition, in a seat with a footrest function, the footrest and the seat are connected by a fixing member. In the prior art, the fixing member and the seat are designed in a split manner, that is, the two components are first manufactured, and then the fixing member and the seat are fixedly connected using screws or rivets. The production cost and complexity of this solution are relatively high. Utility Model Content

[0004] The purpose of this utility model is to provide a chair seat and an office chair that can solve the above technical problems.

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

[0006] The seat comprises a seat frame and a seat cushion slidably connected to the seat frame, the seat further comprising an adjustment locking mechanism for fixing the seat cushion relative to the seat frame when the seat cushion is moved to a corresponding position, the adjustment locking mechanism being at least partially provided on the seat frame, and the remaining portion of the adjustment locking mechanism being provided on the seat cushion, at least a portion of the adjustment locking mechanism being locked with the remaining portion of the adjustment locking mechanism through a concave-convex structure, and a lower convex portion having a through hole for inserting a footrest rod being integrally formed on the bottom surface of the seat frame.

[0007] Furthermore, the distribution direction of the adjustment locking mechanism is perpendicular to the sliding direction of the seat cushion.

[0008] Furthermore, the adjustment locking mechanism includes a locking plug-in slidably connected to the seat frame, and the locking plug-in is engaged with a slider fixedly connected to the bottom surface of the seat cushion through a concave-convex structure.

[0009] Furthermore, the concave-convex structure includes a gear position and a locking tooth that mesh with each other, and any one of the gear position and the locking tooth is provided on the slider, and the remaining one is provided on the locking plug-in.

[0010] Furthermore, the seat frame is provided with a return spring for resetting the position of the locking plug-in, one end of the return spring abuts or is fixed to the locking plug-in, and the other end of the return spring abuts or is fixed to the seat frame.

[0011] Furthermore, the seat frame is further provided with a slide rail for carrying the slider, the slide rail is provided with a first avoidance hole for avoiding the slider, and the slide rail is further provided with a second avoidance hole for avoiding the adjustment locking mechanism from contacting and connecting with the slider.

[0012] Furthermore, the seat further comprises a limiting protrusion and a limiting groove for limiting the travel of the slider, any one of the limiting protrusion and the limiting groove is provided on the slider, and the remaining one is provided on the slide rail.

[0013] Furthermore, a handle is provided on a side of the locking plug-in away from the slider, and the handle is fixedly connected to the locking plug-in by injection molding.

[0014] Furthermore, the footrest rod is inserted into the through hole and is slidably connected to a support rod, and the support rod is connected to a footrest plate that rotates relative to the support rod.

[0015] As an application solution, the present application also provides an office chair, which includes the seat.

[0016] Compared with the existing technology, the advantages of this application are: the design of an adjustment locking mechanism with quick adjustment and locking, users can quickly change the settings according to specific circumstances, suitable for a variety of usage scenarios and different users, at the same time the locking mechanism can effectively prevent accidental adjustments during use, ensure the stability and safety of the office chair, and reduce the risk of accidents; the lower convex part integrally formed on the seat frame solves the problem of high production cost and complexity of the seat with footrest function in the existing technology, forming a more solid and stable connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front right side of the seat assembly of the utility model;

[0018] Figure 2 This is a bottom view of the assembly of the main components of the chair seat of the present invention;

[0019] Figure 3 This is a schematic diagram of the assembly of the main components of the chair seat of the present invention from the left side;

[0020] Figure 4 for Figure 3 A magnified view of the details of the components in area A;

[0021] Figure 5 This is a top view of the assembly of the main components of the adjustment and locking mechanism of the utility model;

[0022] Figure 6 This is a bottom view of the assembly of the main components of the adjustment and locking mechanism of the present invention;

[0023] Figure 7 This is a schematic diagram of the second handle design of the present invention;

[0024] Figure 8 for Figure 7 A magnified view of the details of the components in the middle B area;

[0025] Figure 9 This is the installation diagram for the first handle design;

[0026] Figure 10 This is the installation diagram of the second handle design.

[0027] In the figure, the seat frame 1, the lower protrusion 10, the through hole 100, the slide rail 11, the first avoidance hole 110, the second avoidance hole 111, the limiting groove 112, the guide groove 12, the adjustment locking mechanism 2, the locking plug-in 20, the locking tooth 200, the fixing rod 201, the handle 202, the slider 21, the gear position 210, the limiting protrusion 211, the return spring 3, the support rod 4, and the footrest 5. DETAILED DESCRIPTION

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0029] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0030] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0031] In the description of this embodiment, terms such as "upper," "lower," "right," and "left" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0032] Example 1

[0033] like Figure 1 As shown, in this embodiment, the chair seat with position adjustment function includes a chair seat frame 1, the structure of which is manufactured by injection molding or the like, and is usually made of high-strength plastic or metal to ensure that the user can safely bear the weight without deformation or breakage when in use. A seat cushion for carrying the user is also slidably connected to the above-mentioned chair seat frame 1. In this embodiment, the seat cushion has an adjustment function of moving back and forth, so that the user has a comfortable sitting and lying experience. The above-mentioned chair seat also includes an adjustment locking mechanism 2 for fixing the seat cushion relative to the chair seat frame 1 after the seat cushion is moved to the corresponding position. After the user adjusts the seat cushion to the ideal position, the above-mentioned adjustment locking mechanism 2 needs to be used to lock and fix the seat cushion to achieve a higher degree of freedom in adjusting the chair seat.

[0034] Furthermore, if Figure 5-Figure 6 As shown, in order to ensure a stable locking effect, the distribution direction of the above-mentioned adjustable locking mechanism 2 and the locking movement direction are cross-vertically distributed with the sliding direction of the above-mentioned seat cushion.

[0035] Specifically, the above-mentioned adjustment locking mechanism 2 is at least partially provided on the seat frame 1, and the remaining part of the adjustment locking mechanism 2 is provided on the seat cushion. At the same time, at least a part of the adjustment locking mechanism 2 provided on the seat frame 1 and the remaining part of the adjustment locking mechanism 2 provided on the bottom of the seat cushion are locked through a concave and convex structure.

[0036] In this embodiment, the adjustment locking mechanism 2 for interactive locking includes a locking plug 20 slidably connected to the seat frame 1, and a slider 21 fixedly connected to the bottom surface of the seat cushion. Specifically, the locking plug 20 and the slider 21 are engaged with each other through the above-mentioned concave-convex structure to achieve the adjustment locking effect; Figure 5-Figure 6 As shown, the concave-convex structure includes meshing teeth 210 and locking teeth 200. Either the teeth 210 or the locking teeth 200 are located on the slider 21, while the remaining one is located on the locking insert 20, thus achieving a flexible and reliable adjustable locking mechanism. Specifically, when the user adjusts the fore-aft position of the seat cushion, the concave-convex structure between the locking insert 20 and the slider 21 ensures a stable locking state. This structural design effectively prevents accidental sliding or loosening during use, enhancing the safety and comfort of the chair.

[0037] like Figure 3-Figure 4 As shown, the seat frame 1 is further provided with a slide rail 11 carrying a slider 21. The slider 21 slides in the slide rail 11. A first avoidance hole 110 is provided at the bottom of the slide rail 11 for fixedly connecting the slider 21 to the seat cushion, and the slide rail 11 is also provided with a second avoidance hole 111 for avoiding the adjustment locking mechanism 2 to contact the connecting slider 21. Through the above design, this slide rail structure not only effectively supports the movement of the slider 21, but also facilitates the rapid engagement and release of the adjustment locking mechanism 2.

[0038] like Figure 10 As shown, in order to ensure that the locking plug-in 20 is automatically reset to the locked state after adjustment, the seat frame 1 is further provided with a return spring 3 for resetting the position of the locking plug-in 20. One end of the return spring 3 abuts or is fixed to the locking plug-in 20, and the other end of the return spring 3 abuts or is fixed to the seat frame 1. Figure 10 As shown, in this embodiment, the locking plug 20 is provided with a fixing rod 201 on which the return spring 3 is fixed, and one end of the return spring 3 is fixedly connected to the fixing rod 201, while the other end abuts against the seat frame 1. In addition to the above scheme, as Figure 9As shown, the return spring 3 also has another design scheme. One end of the return spring 3 is fixedly connected to the above-mentioned seat frame 1, and the other end is connected to the bend buckle set in the locking plug 20. The rebound force for resetting is generated by stretching the return spring 3, while the first design scheme uses the compression return spring 3 to generate the rebound force for resetting. The two have the same effect and can be optimized according to the actual working conditions. At the same time, the above-mentioned locking plug 20 is also provided with a handle 202, which is conducive to the user to better operate the lock. When the user needs to adjust the seat cushion, the operating handle 202 is used to pull the locking plug-in 20 outwards away from the slider 21. At this time, the locking tooth 200 is disengaged from the tooth gear 210 and the return spring 3 is in a compressed state. The slider 21 can automatically move to the adjustment position. After the adjustment is completed, the user releases the handle 202. The locking plug-in 20 is pushed close to the slider 21 by the compressed return spring 3, and the locking tooth 200 engages with the tooth gear 210 to lock it. At the same time, to ensure that the handle 202 does not deviate when it is pulled, such as Figure 7-Figure 8 As shown, in this embodiment, a guide groove 12 for slidingly cooperating with the handle 202 is further provided on the seat frame 1. The guide groove 12 is directly fixed to the seat frame 1 by injection molding, and the handle 202 is at least partially distributed in the guide groove 12.

[0039] Specifically, if Figure 2 As shown, to accommodate the travel length of the gear position 210, the seat also includes a limiting protrusion 211 and a limiting groove 112 to limit the travel of the slider 21. Either the limiting protrusion 211 or the limiting groove 112 is located on the slider 21, while the remaining one is located on the slide rail 11. In this embodiment, the limiting protrusion 211 is located on the slider 21, while the limiting groove 112 is provided on the slide rail 11. The limiting protrusion 211 is only allowed to move within the travel range specified by the limiting groove 112. The position and shape of the limiting protrusion 211 are designed so that its height and width are compatible with the structure of the limiting groove 112. This design allows the limiting protrusion 211 to slide smoothly within the limiting groove 112 without getting stuck or falling off. When the user adjusts the seat cushion, the physical barrier formed by the junction of the limiting protrusion 211 and the limiting groove 112 effectively prevents the slider 21 from exceeding the preset travel range.

[0040] Example 2

[0041] The structure and principle of this embodiment are basically the same as those of the first embodiment. The difference lies in that, with respect to the chair seat of the first embodiment, this embodiment describes another advantageous design of this solution.

[0042] In the prior art, footrests are connected to the seat via a fastener. However, in the prior art, the fastener and seat are designed separately, meaning both components are first manufactured and then secured to the seat using screws or rivets. This solution is costly and complex to manufacture. As shown in the figure, in this embodiment, to address the aforementioned drawbacks, a lower protrusion 10 having a through-hole 100 for inserting a footrest rod is integrally formed on the bottom surface of the seat frame 1. The footrest rod is slidably connected to a support rod 4 inserted into the through-hole 100, and the support rod 4 is connected to a footrest plate 5 that rotates relative to the support rod 4. To enhance structural stability, a locking mechanism is employed between the footrest plate 5 and the support rod 4 to secure the footrest's position during use. The lower protrusion 10 allows the support rod 4 to be directly inserted into the seat frame 1, forming a more robust and stable connection. This integrally formed design not only reduces the assembly time and cost associated with screws or rivets, but also mitigates the safety risks associated with loosening of the fastener during use.

[0043] Example 3

[0044] The structure and principle of this embodiment are basically the same as those of the first and second embodiments. The difference lies in that the office chair of this embodiment includes a seat, in contrast to the seats of the first and second embodiments.

[0045] Office chairs are ergonomically designed for comfort and support, and are widely used in offices and workplaces. They typically feature adjustable height, tilt, and armrests to meet the needs of different users while supporting posture during extended periods of sitting. A high-quality office chair not only reduces spinal stress and improves productivity, but also improves posture and overall well-being. Modern office chairs often feature breathable seat fabrics and wheels, allowing users to move flexibly within the office environment.

[0046] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A chair seat comprising a chair seat frame (1) and a seat cushion slidably connected to the chair seat frame (1), characterized in that: The seat further comprises an adjustment locking mechanism (2) for fixing the seat cushion relative to the seat frame (1) after the seat cushion is moved to a corresponding position, wherein the adjustment locking mechanism (2) is at least partially provided on the seat frame (1), and the remaining portion of the adjustment locking mechanism (2) is provided on the seat cushion, and at least a portion of the adjustment locking mechanism (2) is locked with the remaining portion of the adjustment locking mechanism (2) through a concave-convex structure, and a lower convex portion (10) having a through hole (100) for inserting a footrest rod is integrally formed on the bottom surface of the seat frame (1).

2. The chair seat according to claim 1, wherein: The distribution direction of the adjustment locking mechanism (2) is perpendicular to the sliding direction of the seat cushion.

3. The chair seat according to claim 1 or 2, characterized in that: The adjustment locking mechanism (2) comprises a locking plug-in (20) slidably connected to the seat frame (1); the locking plug-in (20) is engaged with a slider (21) fixedly connected to the bottom surface of the seat cushion via a concave-convex structure.

4. The chair seat according to claim 3, characterized in that The concave-convex structure comprises a toothed portion (210) and a locking tooth (200) that mesh with each other, wherein any one of the toothed portion (210) and the locking tooth (200) is provided on the slider (21), and the remaining one is provided on the locking plug-in (20).

5. The chair seat according to claim 3, characterized in that The seat frame (1) is further provided with a return spring (3) for resetting the position of the locking plug-in (20), one end of the return spring (3) abuts against or is fixed to the locking plug-in (20), and the other end of the return spring (3) abuts against or is fixed to the seat frame (1).

6. The chair seat according to claim 3, characterized in that The seat frame (1) is further provided with a slide rail (11) for carrying the slider (21), the slide rail (11) being provided with a first avoidance hole (110) for avoiding the slider (21), and the slide rail (11) being further provided with a second avoidance hole (111) for avoiding the adjustment locking mechanism (2) from contacting and connecting with the slider (21).

7. The chair seat according to claim 6, characterized in that The seat further comprises a limiting protrusion (211) and a limiting groove (112) for limiting the travel of the slider (21); either the limiting protrusion (211) or the limiting groove (112) is provided on the slider (21), and the remaining one is provided on the slide rail (11).

8. The chair seat according to claim 3, characterized in that A handle (202) is further provided on the side of the locking plug-in (20) away from the slider (21), and the handle (202) is fixedly connected to the locking plug-in (20) by injection molding.

9. The chair seat according to claim 1, wherein: The footrest rod is inserted into the through hole (100) and is slidably connected to a support rod (4), and the support rod (4) is connected to a footrest plate (5) that rotates relative to the support rod (4).

10. Office chair, characterized in that, The office chair comprises the seat according to any one of claims 1 to 9.

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