Chair component and chair

Abstract

The utility model discloses a chair component and a chair, the chair component comprises a chair seat, the chair seat is provided with a first supporting part, the first supporting part extends upwards to form a second supporting part, the front side of the second supporting part is provided with a guide plate, and the guide plate is provided with a plurality of positioning through holes along the vertical direction; a sliding plate is arranged on the rear side of the backrest and is in sliding connection with the guide plate; and the positioning structure is arranged on the rear side of the sliding plate, and the positioning structure is used for fixedly connecting the sliding plate to different positioning through holes. A guide plate with a plurality of positioning through holes with different heights is arranged on a second supporting part of a seat, a sliding plate is arranged on the rear side of a backrest, and the sliding plate is connected with the guide plate in a sliding manner, so that the backrest can slide up and down on the second supporting part to adjust the height of the backrest; the sliding plate can be fixedly connected into the positioning through holes with different heights, so that the backrest is fixed at different heights, the height of the backrest is adjusted, and the backrest is simple in structure and convenient to operate.

Description

Technical Field

[0001] This utility model relates to the field of furniture technology, and in particular to a chair component and a chair. Background Technology

[0002] Chairs are essential for modern work and life, and their comfort is directly related to people's health. Currently, most chairs on the market have their backrests mounted on the seat via a backrest bracket, and the backrest and backrest bracket are often designed as a single unit, making it impossible to adjust the height of the backrest and failing to meet the needs of different users. While some chairs do have height-adjustable backrests, their complex structures make them inconvenient to manufacture, install, and operate, resulting in a poor user experience. Utility Model Content

[0003] This utility model provides a chair component, which aims to solve at least one of the technical problems existing in the prior art.

[0004] The first aspect of this utility model relates to a chair component, comprising:

[0005] The chair seat includes a first support part and a second support part extending upward from the rear end of the first support part. A guide plate is provided on the front side of the second support part, and the guide plate is provided with a plurality of positioning through holes along the vertical direction.

[0006] The backrest has a sliding plate on the rear side, and the sliding plate is slidably connected to the guide plate.

[0007] A positioning structure connects the sliding plate and the positioning through holes, the positioning structure being used to enable the sliding plate to switch positioning positions between the positioning through holes.

[0008] According to some embodiments of the present invention, the positioning structure includes an elastic element and an inserter. A blind hole is provided on the rear side of the sliding plate. One end of the elastic element is connected to the blind hole, and the other end is connected to the inserter. The elastic element is used to drive the inserter to be inserted into the positioning through hole.

[0009] The length of the elastic element is less than the depth of the blind hole.

[0010] According to some embodiments of the present invention, it further includes an unlocking component, which is disposed on the rear side of the guide plate. The unlocking component is provided with a push rod, which is inserted into the positioning through hole. The push rod is used to push the insert forward out of the positioning through hole.

[0011] According to some embodiments of this utility model, the number of push rods is the same as the number of positioning through holes.

[0012] According to some embodiments of the present invention, a cover is also included, which is used to cover the guide plate and the sliding plate from the rear. The cover is provided with a clearance hole, and the unlocking member is movably disposed in the clearance hole. The shape of the clearance hole is consistent with the shape of the unlocking member.

[0013] According to some embodiments of this utility model, the avoidance hole is provided with a recess on the front side, and the unlocking member is provided with a step portion. The step portion is engaged with the recess portion to prevent the unlocking member from falling out of the cover.

[0014] According to some embodiments of the present invention, a boss is provided on the rear side of the backrest, a threaded hole is provided at the center of the boss, a countersunk hole matching the boss is provided on the sliding plate, a mounting through hole is provided at the center of the countersunk hole, and the mounting through hole is coaxial with the threaded hole.

[0015] According to some embodiments of the present invention, the second support portion is further provided with a hollow portion, which is circular or rectangular.

[0016] According to some embodiments of this utility model, a handle is provided above the backrest, and a connecting hole is provided below the seat for connecting a support frame.

[0017] The second aspect of this utility model relates to a chair, including the chair components described in any of the preceding claims.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. By setting a guide plate with multiple positioning through holes of different heights on the second support part of the chair seat, and setting a sliding plate on the back of the backrest, the sliding plate is slidably connected to the guide plate, so that the backrest can slide up and down on the second support part to adjust the backrest height. At the same time, a positioning structure is set so that the sliding plate can be fixedly connected to the positioning through holes of different heights, thereby fixing the backrest at different heights, realizing the height adjustment of the backrest, and the structure is simple and easy to operate. Attached Figure Description

[0020] Figure 1 This is an overall schematic diagram of a chair component according to an embodiment of the present utility model;

[0021] Figure 2 This is an exploded view of a chair component according to an embodiment of the present utility model;

[0022] Figure 3 This is an exploded view of a chair component according to an embodiment of the present utility model from another perspective;

[0023] Figure 4 This is a cross-sectional view of a chair component according to an embodiment of the present utility model;

[0024] Figure 5 yes Figure 4 This is a partially enlarged schematic diagram of a chair component.

[0025] Icon labels:

[0026] Seat 100, first support part 110, second support part 120, hollow part 121, guide plate 130, positioning through hole 131;

[0027] Backrest 200, sliding plate 210, blind hole 211, mounting through hole 212, boss 220, threaded hole 221, handle 230;

[0028] Positioning structure 300, elastic element 310, insert element 320;

[0029] Unlocking part 400, push rod 410, step part 420;

[0030] 500 for the cap, 510 for the clearance hole, and 520 for the recess. Detailed Implementation

[0031] The following will describe several embodiments of the present invention, including embodiments corresponding to the accompanying drawings. It should be understood that the drawings are used to assist in understanding the technical features and technical solutions of the present invention, and should not be construed as limiting the scope of protection of the present invention.

[0032] The following will provide a clear and complete description of the concept, specific structure, and technical effects of this utility model in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, solution, and effects of this utility model. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0033] It should be noted that, unless otherwise explicitly defined, when a feature is referred to as "fixed," "connected," "installed," or "set" on another feature, it can be "fixed," "connected," "installed," or "set" directly on the other feature, or it can be "fixed," "connected," "installed," or "set" on the other feature indirectly. The terms "fixed," "connected," "installed," and "set" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0034] It should be noted that the descriptions of orientations or positional relationships indicated by terms such as up, down, left, right, top, bottom, front, back, inside, and outside used in this utility model are based on the orientations or positional relationships indicated by the accompanying drawings or embodiments. They are only for the purpose of facilitating the description of this utility model and simplifying the description, and are not intended to 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.

[0035] It should be noted that the term "and / or" used in this utility model includes any combination of one or more related listed items, "several" means one or more, "multiple" means at least two, "greater than", "less than", "exceeding" are understood to exclude the number itself, and "above", "below", "within" are understood to include the number itself.

[0036] It should be noted that the use of "first" and "second" in this utility model is only for the purpose of distinguishing technical features, and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0037] It should be noted that, unless otherwise expressly defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this specification is for the purpose of describing particular embodiments only and not for limiting the scope of the invention.

[0038] Reference Figures 1 to 5 The first aspect of this utility model relates to a chair component, including a seat 100, including a first support portion 110 and a second support portion 120 extending upward from the rear end of the first support portion 110. A guide plate 130 is provided on the front side of the second support portion 120, and the guide plate 130 is provided with a plurality of positioning through holes 131 along the vertical direction; a backrest 200, with a sliding plate 210 provided on the rear side, the sliding plate 210 being slidably connected to the guide plate 130; and a positioning structure 300 connecting the sliding plate 210 and the positioning through holes 131, the positioning structure 300 being used to enable the sliding plate 210 to switch positioning positions between the positioning through holes 131.

[0039] The use of the above-mentioned chair components has at least the following beneficial effects: By providing a guide plate 130 with multiple positioning through holes 131 of different heights on the second support part 120 of the seat 100, and providing a sliding plate 210 on the rear side of the backrest 200, the sliding plate 210 is slidably connected to the guide plate 130, so that the backrest 200 can slide up and down on the second support part 120 to adjust the height of the backrest 200. At the same time, a positioning structure 300 is provided so that the sliding plate 210 can be fixedly connected to the positioning through holes 131 of different heights, thereby fixing the backrest 200 at different heights, realizing the height adjustment of the backrest 200, and the structure is simple and easy to operate.

[0040] According to some embodiments of the present invention, the positioning structure 300 includes an elastic element 310 and an insert 320. A blind hole 211 is provided on the rear side of the sliding plate 210. One end of the elastic element 310 is connected to the blind hole 211, and the other end is connected to the insert 320. The elastic element 310 is used to drive the insert 320 to insert into the positioning through hole 131. The length of the elastic element 310 is less than the depth of the blind hole 211. In this embodiment, the elastic element 310 is set as a spring, and the insert 320 is set as a cylinder. The front end of the cylinder is provided with a spherical surface, which can guide the cylinder to quickly insert into the positioning through hole 131.

[0041] In some other embodiments, the insert rod can be directly inserted into the positioning through hole 131 on the rear side of the guide plate 130. After the backrest 200 is moved up and down to the corresponding height by the sliding plate 210, the insert rod is pushed forward into the blind hole 211 to complete the fixation. At the same time, the front end of the insert rod can be provided with a spherical surface for guidance. The insert rod can be provided in each positioning through hole 131, or only in one positioning through hole 131. The backrest 200 at different heights can be fixed by pulling out the insert rod and inserting it into the corresponding positioning through hole 131.

[0042] According to some embodiments of this utility model, an unlocking component 400 is also included. The unlocking component 400 is disposed on the rear side of the guide plate 130. The unlocking component 400 includes a push plate, on which a push rod 410 is provided. The push rod 410 is inserted into the positioning through hole 131. The push rod 410 is used to push the insert 320 forward out of the positioning through hole 131. When the height of the backrest 200 needs to be adjusted, the push plate is pushed forward, and the push plate drives the push rod 410 to move forward. The push rod 410 pushes the insert 320 forward out of the positioning through hole 131. The insert 320 presses the elastic member 310 forward, and the backrest 200 moves up or down. At this time, the spherical surface at the front end of the insert 320 slides on the front end surface of the guide plate 130 until it moves to the lower positioning position. In the through hole 131, under the action of the elastic element 310, the insert 320 is pushed backward into the positioning through hole 131 at the corresponding height to complete the fixation. It should be noted that when the insert 320 is inserted into the positioning through hole 131, a part of it is still located in the blind hole 211. That is, the fixation between the guide plate 130 and the sliding plate 210 is completed by the insert 320 itself. The insert 320 is pushed out of the positioning through hole 131 by pushing the push plate, and the backrest 200 is driven to slide up and down by the sliding plate 210. Finally, the elastic element 320 drives the insert 320 to be inserted into the positioning through hole 131 to complete the positioning and fixation. The entire operation of adjusting the height of the backrest 200 is simple and convenient, and the overall structure is simple and uncomplicated.

[0043] According to some embodiments of this utility model, the number of push rods 410 is the same as the number of positioning through holes 131. By setting a push rod 410 in each positioning through hole 131, the push plate can be pushed to make the insert 320 inserted in any positioning through hole 131 exit the positioning through hole 131 without having to remove the unlocking part 400. The operation is simple and convenient.

[0044] According to some embodiments of the present invention, a cover 500 is also included. The cover 500 is used to shield the guide plate 130 and the sliding plate 210 from the rear. The cover 500 is provided with a clearance hole 510. The unlocking member 400 is movably disposed in the clearance hole 510. The shape of the clearance hole 510 is consistent with the shape of the unlocking member 400. A recess 520 is provided on the front side of the clearance hole 510. The unlocking member 400 is provided with a step portion 420. The step portion 420 is engaged with the recess to prevent the unlocking member 400 from falling out of the cover 500.

[0045] According to some embodiments of the present invention, a boss 220 is provided on the rear side of the backrest 200, and a threaded hole 221 is provided in the center of the boss 220. A countersunk hole matching the boss 220 is provided on the sliding plate 210, and a mounting through hole 212 is provided in the center of the countersunk hole. The mounting through hole 212 is coaxial with the threaded hole 221. A bolt is passed through the mounting through hole 212 and connected to the threaded hole 221, so that the sliding plate 210 is connected to the rear side of the backrest 200. At the same time, through the action between the countersunk hole and the boss 220, the stress on the bolt itself is reduced, making the connection between the two more stable and reliable.

[0046] According to some embodiments of the present invention, the second support portion 120 is further provided with a hollow portion 121, which is circular or rectangular. By providing a hollow portion 121 on the second support portion 120, the deformation capability of the second support portion 120 is enhanced, making the support of the second support portion 120 more flexible, and at the same time, the overall aesthetics of the chair components can be improved.

[0047] According to some embodiments of the present invention, a handle 230 is also provided above the backrest 200 to facilitate lifting the backrest 200 for height adjustment.

[0048] According to some embodiments of the present invention, a connecting hole is also provided below the seat 100 for connecting a support frame.

[0049] The second aspect of this utility model relates to a chair, including the chair components described in any of the preceding claims.

[0050] It should be noted that in this specification, terms such as "one embodiment", "some embodiments", "basic embodiment", and "extended embodiment" may be used to describe several embodiments of the present invention, and the specific features, structures, materials or characteristics of the several embodiments may be combined in accordance with the principles and spirit of the present invention.

[0051] Although some embodiments of the present invention have been shown and described in this specification, the present invention should not be limited to the above embodiments. As long as they achieve the technical effects of the present invention by the same or equivalent means, any changes, modifications, equivalent substitutions and equivalent variations of these embodiments within the spirit and principles of this disclosure, without departing from the principles and purpose of the present invention, should be included within the scope of protection of this disclosure and should be considered to fall within the protection scope of the present invention.

Claims

1. A chair component, characterized in that, include: The chair seat (100) includes a first support part (110) and a second support part (120) extending upward from the rear end of the first support part (110). A guide plate (130) is provided on the front side of the second support part (120), and the guide plate (130) is provided with a plurality of positioning through holes (131) in the vertical direction. The backrest (200) has a sliding plate (210) on the rear side, and the sliding plate (210) is slidably connected to the guide plate (130); A positioning structure (300) connects the sliding plate (210) and the positioning through hole (131). The positioning structure (300) enables the sliding plate (210) to switch positioning positions between the positioning through holes (131).

2. A chair component according to claim 1, characterized in that, The positioning structure (300) includes an elastic element (310) and an insert (320). A blind hole (211) is provided on the rear side of the sliding plate (210). One end of the elastic element (310) is connected to the blind hole (211), and the other end is connected to the insert (320). The elastic element (310) is used to drive the insert (320) to be inserted into the positioning through hole (131). The length of the elastic element (310) is less than the depth of the blind hole (211).

3. A chair component according to claim 2, characterized in that, It also includes an unlocking component (400), which is located on the rear side of the guide plate (130). The unlocking component (400) is provided with a push rod (410), which is inserted into the positioning through hole (131). The push rod (410) is used to push the insert (320) forward out of the positioning through hole (131).

4. A chair component according to claim 3, characterized in that, The number of push rods (410) is the same as the number of positioning through holes (131).

5. A chair component according to claim 3, characterized in that, It also includes a cover (500) for covering the guide plate (130) and the sliding plate (210) from the rear. The cover (500) is provided with a clearance hole (510). The unlocking member (400) is movably disposed in the clearance hole (510). The shape of the clearance hole (510) is consistent with the shape of the unlocking member (400).

6. A chair component according to claim 5, characterized in that, The clearance hole (510) has a recess (520) on the front side, and the unlocking member (400) has a step (420) which engages with the recess (520) to prevent the unlocking member (400) from coming off the cover (500) backward.

7. A chair component according to claim 1, characterized in that, The backrest (200) has a boss (220) on its rear side. The boss (220) has a threaded hole (221) at its center. The sliding plate (210) has a countersunk hole that matches the boss (220). The countersunk hole has a mounting through hole (212) at its center. The mounting through hole (212) is coaxial with the threaded hole (221).

8. A chair component according to claim 1, characterized in that, The second support part (120) is also provided with a hollow part (121), which is circular or rectangular.

9. A chair component according to claim 1, characterized in that, The backrest (200) is provided with a handle (230) above it, and the seat (100) is provided with a connecting hole below it for connecting a support frame.

10. A chair, characterized in that, Includes the chair components as described in any one of claims 1 to 9.

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