Chair seat and chair frame connecting structure and swivel chair

Abstract

The utility model relates to furniture field discloses a chair seat and chair frame connecting structure and swivel chair, wherein, chair seat and chair frame connecting structure include: seat board, the left and right sides are provided with connecting portion respectively, the side of mutual far away of two connecting portions is connected with connecting shaft respectively, and is provided with elastic part between at least one connecting portion and connecting shaft, and elastic part can drive seat board to rotate to set along up-down direction through connecting portion, stand, the left and right sides of seat board are provided with stand respectively, and the side of two stands corresponds seat board and is provided with connecting shell respectively, two connecting shafts are inserted into two connecting shell respectively, two connecting shells are provided with connecting piece respectively, and two connecting pieces are connected in two connecting shafts along the radial direction of connecting shaft respectively, the utility model integrates the structure of rotation in the connecting portion of chair seat directly, when dismounting, only need to carry out dismounting between connecting shaft and stand connection, whole process is simple, fast, has improved overall dismounting efficiency and the convenience of maintenance.

Description

Technical Field

[0001] This utility model relates to the field of furniture and discloses a connection structure between a chair seat and a chair frame, as well as a swivel chair. Background Technology

[0002] In self-lifting folding chairs, the seat can flip up and down. When not in use, the seat flips upwards to its vertical position, and when needed, it flips downwards to lie flat or nearly flat. Currently, self-lifting folding chairs have poor disassembly and assembly capabilities. Replacement and maintenance require disassembling the seat and frame panel structure, and then detaching the rotating connection between the seat and frame to separate the seat from the frame. This process is cumbersome and time-consuming. Therefore, there is an urgent need for a connection structure that allows for easy disassembly and assembly of the seat and frame. Utility Model Content

[0003] The purpose of this utility model is to provide a connection structure between a chair seat and a chair frame, and a swivel chair, so as to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0004] According to a first aspect of the present invention, a chair seat and chair frame connection structure includes: a seat plate, with connecting portions respectively provided on the left and right sides, and connecting shafts rotatably connected to the two connecting portions on opposite sides, the two connecting shafts being located on the same straight line, and an elastic element provided between at least one connecting portion and the connecting shaft, the elastic element driving the seat plate to rotate in the vertical direction through the connecting portion; and a stand, with the stand provided on the left and right sides of the seat plate, and connecting shells respectively provided on the side of the two stands corresponding to the seat plate, the two connecting shafts being inserted into the two connecting shells, and connecting members passing through the two connecting shells, the two connecting members being radially connected to the two connecting shafts.

[0005] This technical solution has at least the following beneficial effects: The seat is for users to sit on, and connecting parts are provided on its left and right sides respectively. Each of the two connecting parts has a rotatable connecting shaft. When assembling the seat and the frame, the connecting shafts in the two connecting parts are directly inserted into the connecting shells of the two uprights, which achieves the relative positioning between the two uprights and the seat. Then, connectors are inserted through the two connecting shells and connected to the connecting shafts radially, thereby fixing the connecting shafts to the uprights. This restricts relative movement between the connecting shafts and the frame. The chair frame is rotated and the connecting shaft is restricted from detaching outward from the chair frame, while the upright provides support for the whole. The connecting shaft can rotate relative to the connecting part, so that the chair seat can rotate upward relative to the upright to be set in the vertical direction. At this time, the chair seat is in the folded state. Alternatively, the chair seat can rotate downward relative to the upright to be laid flat or close to being flat. At this time, the chair seat is in the use state. In this way, the rotating structure is directly integrated into the connecting part of the chair seat. During disassembly and assembly, only the connection between the connecting shaft and the upright needs to be disassembled and assembled. The whole process is simple and quick, improving the overall disassembly and assembly efficiency and the convenience of maintenance.

[0006] According to some embodiments of the present invention, the connecting part includes a lower side plate disposed on the bottom side of the seat plate, and two connecting shafts respectively pass through the two lower side plates on opposite sides. The elastic element is disposed on the opposite sides of the two lower side plates respectively.

[0007] According to some embodiments of the present invention, at least one of the lower side plates is connected to a stop shaft on the side near the connecting shell, and the connecting shell is provided with a limiting groove for the stop shaft to be inserted at the position corresponding to the stop shaft. When the seat plate rotates upward to the end of its stroke, the stop shaft abuts against one side of the limiting groove; when the seat plate rotates downward to the end of its stroke, the stop shaft abuts against the other side of the limiting groove.

[0008] According to some embodiments of the present invention, the connecting part further includes a connecting cover connected to the side of the lower side plate away from the connecting shell, and the ends of the elastic member and the connecting shaft that protrude from the lower side plate are both located inside the connecting cover.

[0009] A swivel chair according to a second aspect of the present invention includes the above-described seat and frame connection structure.

[0010] This technical solution has at least the following beneficial effects: In this swivel chair, since the connection between the chair seat and the chair frame directly integrates the rotating structure into the connection part of the chair seat, during disassembly and assembly, it is only necessary to disassemble and assemble the connection between the connecting shaft and the upright. The whole process is simple and fast, improving the overall disassembly and assembly efficiency and the convenience of maintenance.

[0011] According to some embodiments of the present invention, the present invention also includes a backrest, wherein connecting seats are respectively provided between the left and right sides of the backrest and the two uprights.

[0012] According to some embodiments of the present invention, the left and right sides of the backrest are respectively formed with rear flanges, and locking members are respectively provided on the opposite sides of the two rear flanges. The locking members pass through the connecting seat and are connected to the upright frame.

[0013] According to some embodiments of the present invention, the present invention also includes a tabletop, which is located behind the seat plate. Two connecting rods are spaced apart along the left and right direction on the bottom side of the tabletop, and the two connecting rods are respectively connected to the two uprights.

[0014] According to some embodiments of the present invention, the top sides of the two uprights are respectively provided with adjustment spaces for the two connecting rods to be inserted and move up and down, and the two locking members are connected to the ends of the two uprights, respectively extending into the two adjustment spaces and pressing against the outside of the two connecting rods.

[0015] According to some embodiments of the present invention, the bottom sides of the two uprights are respectively provided with support bases, and the top sides of the two support bases are respectively provided with mounting holes.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of this utility model, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the chair seat and chair frame connection structure after assembly, with the chair seat in use at this time.

[0019] Figure 2 This is an exploded structural diagram of the chair seat and top frame of this utility model, with the chair seat in use at this time.

[0020] Figure 3 This is a perspective view of the swivel chair of this utility model, with the seat in use at this time.

[0021] In the attached diagram: 100-seat plate, 110-connecting shaft, 120-elastic element, 130-lower side plate, 140-stop shaft, 150-connecting cover, 200-stand, 210-connecting shell, 211-limiting groove, 220-connecting piece, 230-support base, 300-backrest, 310-connecting base, 320-rear flange, 410-tabletop, 420-connecting rod. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional 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.

[0024] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it 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 indicated technical features, or implicitly indicating the order of the indicated technical features.

[0025] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" 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.

[0026] In the description of this application, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" 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 application based on the specific circumstances.

[0027] In the description of this application, the use of terms such as "one embodiment," "some embodiments," "an example," "some instances," "some embodiments," "illustrative embodiment," "example," "specific example," and "some examples" indicates that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] Reference Figure 1 and Figure 2 According to a first aspect embodiment of the present invention, a chair seat and chair frame connection structure includes a seat plate 100 and a support frame 200. The seat plate 100 has connecting portions on its left and right sides, and two connecting portions are rotatably connected to connecting shafts 110 on opposite sides. The two connecting shafts 110 are located on the same straight line. At least one connecting portion and the connecting shaft 110 are provided with an elastic element 120, which can drive the seat plate 100 to rotate in the vertical direction via the connecting portion. The support frame 200 is provided on the left and right sides of the seat plate 100, and the two support frames 200 correspond to the... A connecting shell 210 is provided on one side of the base plate 100. Two connecting shafts 110 are respectively inserted into the two connecting shells 210. Connecting members 220 are respectively passed through the two connecting shells 210. The two connecting members 220 are respectively connected to the two connecting shafts 110 radially. In practical applications, the two connecting shells 210 are respectively provided with insertion holes on the side near the base plate 100. The two connecting shafts 110 can be inserted into the two insertion holes respectively. The two connecting members 220 can be structural components such as screws, pins or clips. After the two connecting shells 210 are inserted, they are fixed to the connecting shafts 110 by means of threads or buckles.

[0029] As described above, the seat 100 is for users to sit on, and it has connecting parts on its left and right sides, each with a rotatable connecting shaft 110. When assembling the seat and the frame, the connecting shafts 110 in the two connecting parts are directly inserted into the connecting shells 210 of the two uprights 200, thus achieving relative positioning between the two uprights 200 and the seat. Then, connectors 220 are inserted through the two connecting shells 210, and the connectors 220 are radially connected to the connecting shafts 110, thereby fixing the connecting shafts 110 and the uprights 200 together. This restricts the movement of the connecting shafts 110 and the frame. The connecting shaft 110 rotates relative to the chair frame, preventing it from detaching outwards. The upright frame 200 provides support for the entire structure. The connecting shaft 110 can rotate relative to the chair frame within the connecting part, allowing the chair seat to rotate upwards relative to the upright frame 200 to be positioned vertically. At this point, the chair seat is in a folded-up state. Alternatively, the chair seat can rotate downwards relative to the upright frame 200 to be laid flat or close to being flat. At this point, the chair seat is in the usable state. In this way, the rotating structure is directly integrated into the connecting part of the chair seat. During disassembly and assembly, only the connection between the connecting shaft 110 and the upright frame 200 needs to be disassembled or reassembled. The whole process is simple and quick, improving the overall disassembly and assembly efficiency and the convenience of maintenance.

[0030] As a specific embodiment of the connecting part, the connecting part includes a lower side plate 130 disposed on the bottom side of the base plate 100. Two connecting shafts 110 respectively protrude from the two lower side plates 130 on opposite sides. Elastic members 120 are respectively disposed on the opposite sides of the two lower side plates 130. The lower side plate 130 located on the bottom side of the base plate 100 can provide a structure for mounting and connecting the connecting shafts 110. With the side of the lower side plate 130 away from the upright 200 as the inner side, the elastic members 120 are disposed on the inner side of the lower side plate 130, which can reduce the exposure of the structure for transmission connection with the connecting shafts 110. Only the end of the connecting shaft 110 used for connection protrudes from the outer side of the lower side plate 130, which facilitates fixed connection with the connecting shell 210, and the overall structure is simpler.

[0031] After the connecting shaft 110 is connected to the connecting shell 210, the seat plate 100 can rotate around the connecting shaft 110 through the connecting part, thereby realizing up and down rotation to adjust its posture. Naturally, a structure is provided between the lower side plate 130 and the upright frame 200 to limit the rotation stroke of the seat plate 100. Specifically, at least one of the lower side plates 130 is connected to a stop shaft 140 on the side near the connecting shell 210. The connecting shell 210 is provided with a limiting groove 211 for the stop shaft 140 to be inserted at the position corresponding to the stop shaft 140. When the seat plate 100 rotates upward to the end of its stroke, the stop shaft 140 abuts against one side of the limiting groove 211; when the seat plate 100 rotates downward to the end of its stroke, the stop shaft 140 abuts against the other side of the limiting groove 211. The limiting groove 211 provides movement space for the stop groove and also limits the stroke. Specifically, when the seat plate 100 rotates, the lower side plate 130 rotates around the connecting shaft 110, causing the stop shaft 140 to move within the limiting groove 211. When the stop shaft 140 abuts against one side of the limiting groove 211, the seat plate 100 rotates upward to the end of its stroke. At this time, the seat plate 100 has achieved upward rotation and reset to the up-down orientation, which in particular limits the stroke of the elastic element 120 driving the seat plate 100 to rotate upward and reset. When the stop shaft 140 abuts against the other side of the limiting groove 211, the seat plate 100 rotates downward to the end of its stroke. At this time, the seat plate 100 is in a usable riding position, and the side wall of the limiting groove 211 can provide support for the seat plate 100, improving the stability of the seat plate 100 during use.

[0032] To further reduce the exposure of the elastic element 120, in this embodiment, the connecting portion further includes a connecting cover 150 connected to the side of the lower side plate 130 away from the connecting shell 210. The ends of the elastic element 120 and the connecting shaft 110 that protrude from the lower side plate 130 are both located inside the connecting cover 150. The connecting cover 150 further covers and protects the end of the elastic element 120 located inside the lower side plate 130 and the elastic element 120 itself, effectively reducing structural exposure and improving the overall appearance and stability during use.

[0033] The elastic element 120 is mainly used to provide external force for the rotational reset of the lower side plate 130. It has various structural forms, such as tension spring or torsion spring. For example, when the elastic element 120 uses a torsion spring, one arm of the torsion spring can be connected to the connecting shaft 110, and the other arm of the torsion spring can be connected to the connecting cover 150 or the lower side plate 130, so that the seat plate 100 can be rotated through the connecting cover 150 or the lower side plate 130.

[0034] A swivel chair according to a second aspect embodiment of the present utility model, such as Figure 3 As shown, it includes the aforementioned connection structure between the chair seat and the chair frame.

[0035] In this swivel chair, the two uprights 200 can be directly used to support the whole. Since the connection between the chair seat and the chair frame directly integrates the rotating structure into the connection part of the chair seat, during disassembly and assembly, it is only necessary to disassemble and assemble the connection between the connecting shaft 110 and the upright 200. The whole process is simple and quick, which improves the overall disassembly and assembly efficiency and the convenience of maintenance.

[0036] This utility model also includes a backrest 300, with connecting seats 310 respectively provided between the left and right sides of the backrest 300 and the two uprights 200. The backrest 300 provides a leaning function when the user sits on it, thereby improving the comfort of use. Furthermore, the backrest 300 is connected between the two uprights 200, so that the backrest 300 and the two uprights 200 form a stable frame structure, further improving the reliability of the overall structure.

[0037] In a specific embodiment where the backrest 300 is connected to the upright frame 200 via the connecting seat 310, the left and right sides of the backrest 300 are respectively provided with rear flanges 320, and locking members are respectively provided on the opposite sides of the two rear flanges 320. The locking members pass through the connecting seat 310 and are connected to the upright frame 200. The locking members can be connected by screws, pins or locking pins. The rear flange 320 formed on the side of the backrest 300 provides a fulcrum for the connecting seat 310 to abut against, making the contact between the connecting seat 310 and the rear flange 320 more stable. During installation, a locking member is inserted into the side of the rear flange 320 away from the upright 200. After the locking member passes through the connecting seat 310, it is connected to the upright 200. The locking member can be fixed to the upright 200 by means of threaded connection or snap-fit ​​connection, thereby connecting and fixing the backrest 300, the connecting seat 310 and the upright 200 together. This makes assembly convenient, and the fact that the locking member can be inserted into the side of the rear flange 320 away from the upright 200 can reduce the exposure of the connection structure and further improve the overall appearance.

[0038] To further enrich the overall functionality, this utility model also includes a tabletop 410, located behind the seat 100. Two connecting rods 420 are spaced apart along the bottom side of the tabletop 410 in the left-right direction, and each connecting rod 420 is connected to one of the two uprights 200. In use, multiple swivel chairs can be arranged at intervals in the front-back direction. In two adjacent swivel chairs, the tabletop 410 of the front chair can be used by the user located behind it, making it particularly suitable for use in conference rooms, classrooms, and other similar spaces, thus enriching the overall functionality.

[0039] In the above embodiment, when the connecting rod 420 is connected to the stand 200, the two can be directly fixed to each other. In order to further adjust the height of the tabletop 410, as a further implementation of the connection between the connecting rod 420 and the stand 200, the top sides of the two stands 200 are respectively provided with adjustment spaces for the two connecting rods 420 to be inserted and move up and down. The ends of the two locking members connected to the two stands 200 extend into the two adjustment spaces and press against the outside of the two connecting rods 420. In practical applications, the locking members can adopt a threaded connection structure such as screws. In addition, multiple connecting seats 310 can be provided on each side of the backrest 300 to connect with the stand 200. For example, two connecting seats 310 are provided between one side of the backrest 300 and the stand 200. After the two connecting rods 420 are inserted into the stand 200, they can move up and down relative to each other within the stand 200 to adjust the height of the tabletop 410. After the height of the tabletop 410 is adjusted, the two locking parts are further connected to the two stands 200, so that the ends of the two locking parts press against the outside of the two connecting rods 420, and the two connecting rods 420 are pressed and fixed within the two stands 200.

[0040] To improve the supporting stability of the two uprights 200, in this embodiment, each of the two uprights 200 is provided with a support base 230 on its bottom side, and each of the two support bases 230 is provided with a mounting hole on its top side. The two support bases 230 can increase the contact area between the uprights 200 and the ground, thereby improving the supporting stability of the two uprights 200. Furthermore, screws, clips, or other connecting structures can be driven into the top sides of the two support bases 230 to further secure the uprights 200 to the ground.

[0041] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A connection structure between a chair seat and a chair frame, characterized in that: include: The seat plate (100) has connecting parts on its left and right sides respectively. The two connecting parts are rotatably connected to connecting shafts (110) on the sides that are far apart from each other. The two connecting shafts (110) are located on the same straight line. At least one of the connecting parts and the connecting shaft (110) is provided with an elastic element (120). The elastic element (120) can drive the seat plate (100) to rotate in the vertical direction through the connecting parts. The support frame (200) is provided on the left and right sides of the base plate (100). The two support frames (200) are respectively provided with connecting shells (210) on one side of the base plate (100). The two connecting shafts (110) are respectively inserted into the two connecting shells (210). The two connecting shells (210) are respectively provided with connecting members (220). The two connecting members (220) are respectively connected to the two connecting shafts (110) radially along the connecting shafts (110).

2. The chair seat and chair frame connection structure according to claim 1, characterized in that: The connecting part includes a lower side plate (130) disposed on the bottom side of the seat plate (100), and two connecting shafts (110) respectively pass through the two lower side plates (130) on opposite sides. The elastic element (120) is disposed on the opposite sides of the two lower side plates (130).

3. The chair seat and chair frame connection structure according to claim 2, characterized in that: At least one of the lower side plates (130) is connected to a stop shaft (140) on the side near the connecting shell (210). The connecting shell (210) is provided with a limiting groove (211) for the stop shaft (140) to be inserted at the position corresponding to the stop shaft (140). When the seat plate (100) rotates upward to the end of its stroke, the stop shaft (140) abuts against one side of the limiting groove (211); when the seat plate (100) rotates downward to the end of its stroke, the stop shaft (140) abuts against the other side of the limiting groove (211).

4. The chair seat and chair frame connection structure according to claim 2, characterized in that: The connecting part also includes a connecting cover (150) connected to the side of the lower side plate (130) away from the connecting shell (210), and the ends of the elastic member (120) and the connecting shaft (110) that protrude from the lower side plate (130) are both located inside the connecting cover (150).

5. A swivel chair, characterized in that: Includes the seat and frame connection structure as described in any one of claims 1 to 4.

6. A swivel chair according to claim 5, characterized in that: It also includes a backrest (300), and connecting seats (310) are respectively provided between the left and right sides of the backrest (300) and the two uprights (200).

7. A swivel chair according to claim 6, characterized in that: The backrest (300) has rear flanges (320) on its left and right sides respectively. Locking members are respectively provided on the opposite sides of the two rear flanges (320). The locking members pass through the connecting seat (310) and are connected to the upright frame (200).

8. A swivel chair according to claim 7, characterized in that: It also includes a tabletop (410) located behind the seat (100), and two connecting rods (420) are provided at intervals along the left and right direction on the bottom side of the tabletop (410), and the two connecting rods (420) are respectively connected to the two uprights (200).

9. A swivel chair according to claim 8, characterized in that: The top sides of the two uprights (200) are respectively provided with adjustment spaces for the two connecting rods (420) to be inserted and move up and down. The two locking members are connected to the ends of the two uprights (200) and extend into the two adjustment spaces respectively and press against the outside of the two connecting rods (420).

10. A swivel chair according to claim 5, characterized in that: The bottom sides of the two uprights (200) are respectively provided with support bases (230), and the top sides of the two support bases (230) are respectively provided with mounting holes.

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