Business chair structure

Abstract

The utility model discloses an office chair structure which comprises a seat plate, supporting legs are installed at the bottom of the seat plate in an inserting and pulling mode, a backrest frame is connected to the right side of the top of the seat plate in an inserting and pulling mode, a back plate is detachably installed in the backrest frame, and armrests are installed at the top of the seat plate in an inserting and pulling mode. The seat plate, the supporting legs, the backrest frame, the back plate, the first inserting block, the second inserting block, a base plate, a shelving plate, a vertical rod, a third inserting block, a fourth inserting block, a positioning rod, a telescopic rod, a limiting plate, a limiting block, a first spring, a movement cavity, a movement plate, a connecting rod, a bottom plate, a locking rod, a clamping plate, a first transverse rod, a second transverse rod and a second spring are matched with one another; the seat plate, the supporting legs and the armrests are arranged in a split mode, no work is needed in the split disassembly process, use is convenient, a soft cushion and a cushion column on the backrest can be switched, selection is conducted according to weather and air temperature, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of class chairs, in particular to a class chair structure. Background Art

[0002] A term that has emerged in modern times and is commonly used in the furniture industry. It mainly refers to the chairs used by office staff at work, so it is called an office chair. In the existing technology, office chairs are generally fixed in one piece, which makes it inconvenient to assemble and disassemble the office chair without special tools. People who often use office chairs will know that some parts of the chair are easy to damage, especially the backrest, which is easy to break or damage at the connection. An office chair with a fixed one-piece setting is not convenient for each part to be separately improved, and is inconvenient to use.

[0003] For example, a class chair structure with publication number CN219877777U includes a seat frame, a backboard installed at the rear of the seat frame, armrests on the left and right sides of the seat frame, and horizontal bars extending outward on the left and right upper parts of the backboard. This technical solution also has the technical problems mentioned above. Utility Model Content

[0004] The purpose of the present invention is to provide a class chair structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a class chair structure, including a seat, the bottom of which is plugged and unplugged with a leg, the right side of the top of the seat is plugged and connected to a backrest frame, a backboard is detachably installed inside the backrest frame, and the top of the seat is plugged and unplugged with an armrest.

[0006] Optionally, the top of the support leg is fixedly connected to an insert block 1, and the top of the insert block 1 is movably inserted into the seat plate.

[0007] Optionally, a second plug-in block is fixedly connected to the bottom of the backrest frame, and the bottom of the second plug-in block is movably plugged into the seat plate.

[0008] Optionally, the armrest includes a pad arranged on the top of the seat, a shelf plate is arranged above the pad, the bottom of the shelf plate is fixedly connected to a vertical rod, the bottom end of the vertical rod is fixedly connected to the top of the pad, the bottom of the pad is fixedly connected to an insert block three, and the bottom of the insert block three is movably plugged into the seat.

[0009] Optionally, a fourth plug-in block is fixedly connected to the back panel, and the fourth plug-in block is movably plugged into the backrest frame. A positioning rod is movably connected to the backrest frame, and one end of the positioning rod is movably plugged into the fourth plug-in block.

[0010] Optionally, a telescopic rod is fixedly connected to the groove on the rear side of the backrest frame, the bottom end of the telescopic rod is fixedly connected to a limiting plate, the bottom of the limiting plate is fixedly connected to a limiting block, the bottom of the limiting block is movably inserted into the positioning rod, and a spring is provided on the surface of the telescopic rod.

[0011] Optionally, a movement cavity is provided on the seat plate, and a movement plate is slidably connected to the inner wall of the movement cavity, the bottom of the movement plate is connected to the base plate via a connecting rod, the top of the base plate is fixedly connected to a locking rod, a card plate is provided on the right side of the seat plate, the top of the locking rod is movably inserted on the card plate, the left side of the card plate is fixedly connected to a cross bar 1, the cross bar 1 passes through the plug block 1 and the plug block 3 in sequence, the left side of the card plate is fixedly connected to a cross bar 2, the left end of the cross bar 2 is movably inserted on the plug block 2, and the surface of the connecting rod is provided with a spring 2.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] The utility model uses the mutual cooperation of the seat plate, the supporting legs, the backrest frame, the back plate, the insert block 1, the insert block 2, the pad, the shelf plate, the vertical rod, the insert block 3, the insert block 4, the positioning rod, the telescopic rod, the limit plate, the limit block, the spring 1, the movement cavity, the movement plate, the connecting rod, the bottom plate, the locking rod, the clamping plate, the cross bar 1, the cross bar 2 and the spring 2. During use, the seat plate, the supporting legs and the armrests are all split-type settings, and no work is required during the split and disassembly process, which is convenient to use. In addition, the soft cushions and cushion columns on the backrest can be switched, and the selection here is based on the weather temperature, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural cross-sectional view of the front view of the utility model;

[0015] Figure 2 This is a structural cross-sectional view of the seat plate, motion chamber, motion plate, connecting rod, bottom plate, locking rod and spring of the utility model;

[0016] Figure 3 This is a structural cross-sectional view of the backrest frame, backboard, cushion column, positioning rod, telescopic rod, limit plate, limit block and spring - a right side view of the utility model;

[0017] Figure 4 This is a structural cross-sectional view of the top view of the seat plate, insert block 1, insert block 2 and insert block 3 of the utility model;

[0018] Figure 5 This is a schematic structural diagram of a three-dimensional diagram of the support leg and the insert block of the utility model;

[0019] Figure 6 It is a structural schematic diagram of the three-dimensional view of the handrail and the insert block of the utility model.

[0020] In the figure: 1 seat plate, 2 legs, 3 backrest frame, 4 back plate, 5 insert block 1, 6 insert block 2, 7 pad, 8 shelf plate, 9 vertical rod, 10 insert block 3, 11 insert block 4, 12 positioning rod, 13 telescopic rod, 14 limit plate, 15 limit block, 16 spring 1, 17 movement cavity, 18 movement plate, 19 connecting rod, 20 bottom plate, 21 locking rod, 22 card plate, 23 cross bar 1, 24 cross bar 2, 25 spring 2, 26 cushion, 27 cushion column. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-6 A class chair structure includes a seat plate 1, a leg 2 is installed on the bottom of the seat plate 1, a backrest frame 3 is plugged in and connected to the right side of the top of the seat plate 1, a back plate 4 is detachably installed inside the backrest frame 3, and an armrest is plugged in and installed on the top of the seat plate 1.

[0023] See also Figure 1-6 The top of the leg 2 is fixedly connected with an insert block 5, the top of the leg 2 is in contact with the bottom of the seat plate 1, and the top of the insert block 5 is movably connected to the seat plate 1. The left side of the back plate 4 is fixedly connected with a cushion 26. The setting of the cushion 26 can be used in winter and is more comfortable to lean on. The right side of the back plate 4 is fixedly connected with a pad column 27. There are gaps between the pad columns 27, so that the user's back can be prevented from getting hot when used in summer.

[0024] See also Figure 1-6 The bottom of the backrest frame 3 is fixedly connected with an insert block 2 6, and the bottom of the insert block 2 6 is movably plugged into the seat plate 1.

[0025] See also Figure 1-6 The armrest includes a pad 7 arranged on the top of the seat 1, a shelf plate 8 is arranged above the pad 7, the bottom of the shelf plate 8 is fixedly connected with a vertical rod 9, the bottom end of the vertical rod 9 is fixedly connected to the top of the pad 7, and the bottom of the pad 7 is fixedly connected with an insertion block three 10, and the bottom of the insertion block three 10 is movably plugged into the seat 1.

[0026] See also Figure 1-6 The back plate 4 is fixedly connected to a plug block 11, which is movably connected to the backrest frame 3. The backrest frame 3 is movably connected to a positioning rod 12, and one end of the positioning rod 12 is movably connected to the plug block 11.

[0027] See also Figure 1-6 A telescopic rod 13 is fixedly connected to the groove on the rear side of the backrest frame 3. The bottom end of the telescopic rod 13 is fixedly connected to the limit plate 14. The bottom of the limit plate 14 is fixedly connected to the limit block 15. The bottom of the limit block 15 is movably inserted into the positioning rod 12. A spring 16 is provided on the surface of the telescopic rod 13.

[0028] See also Figure 1-6 A motion cavity 17 is provided on the seat plate 1, and a motion plate 18 is slidably connected to the inner wall of the motion cavity 17. The bottom of the motion plate 18 is connected to the bottom plate 20 through a connecting rod 19, and the top of the bottom plate 20 is fixedly connected to the locking rod 21. A card plate 22 is provided on the right side of the seat plate 1, and the top of the locking rod 21 is movably inserted into the card plate 22. The left side of the card plate 22 is fixedly connected to a cross bar 1 23, and the cross bar 1 23 passes through the plug block 1 5 and the plug block 3 10 in sequence. The left side of the card plate 22 is fixedly connected to a cross bar 24, and the left end of the cross bar 24 is movably inserted into the plug block 2 6. The surface of the connecting rod 19 is provided with a spring 25.

[0029] When in use, the bottom plate 20 moves downward, and the bottom plate 20 will drive the moving plate 18 to move downward through the connecting rod 19, the spring 25 will be compressed, the bottom plate 20 will drive the locking rod 21 to disengage from the card plate 22, pull the card plate 22, the card plate 22 drives the cross bar 24 to disengage from the plug block 2 6, the card plate 22 drives the cross bar 1 23 to disengage from the plug block 1 5 and the plug block 3 10, so that the seat 1 and the leg 2 are separated, so that the vertical rod 9 moves upward, the vertical rod 9 will drive the plug block 3 10 to disengage from the seat plate 1 through the pad 7, and the armrest will Disengage from the seat panel 1 and pull the backrest frame 3. The backrest frame 3 will drive the insert block 2 6 to disengage from the seat panel 1. In this way, the seat panel 1 will be separated from the backrest frame 3, causing the limit plate 14 to move upward. The telescopic rod 13 and the spring 1 16 will be compressed. The limit plate 14 will drive the limit block 15 to disengage from the positioning rod 12. Pull the positioning rod 12 and the positioning rod 12 will disengage from the insert block 4 11. In this way, the back panel 4 can be pulled and the back panel 4 will drive the insert block 4 11 to disengage from the backrest frame 3. It is possible to switch which of the cushion 26 and the cushion column 27 is facing the user.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A class chair structure, comprising a seat plate (1), characterized in that: The bottom of the seat (1) is pluggably mounted with a support leg (2), the right side of the top of the seat (1) is pluggably connected with a backrest frame (3), a backrest frame (4) is detachably mounted inside the backrest frame (3), and the top of the seat (1) is pluggably mounted with an armrest.

2. The office chair structure according to claim 1, characterized in that: The top of the support leg (2) is fixedly connected to an insert block (5), and the top of the insert block (5) is movably inserted into the seat plate (1).

3. The office chair structure according to claim 2, characterized in that: The bottom of the backrest frame (3) is fixedly connected with a second plug-in block (6), and the bottom of the second plug-in block (6) is movably plugged into the seat plate (1).

4. The office chair structure according to claim 3, characterized in that: The armrest comprises a pad (7) arranged on the top of the seat (1), a shelf (8) is arranged above the pad (7), the bottom of the shelf (8) is fixedly connected to a vertical rod (9), the bottom end of the vertical rod (9) is fixedly connected to the top of the pad (7), the bottom of the pad (7) is fixedly connected to an insert block three (10), and the bottom of the insert block three (10) is movably plugged into the seat (1).

5. The office chair structure according to claim 4, characterized in that: The backboard (4) is fixedly connected with an insert block four (11), and the insert block four (11) is movably plugged into the backrest frame (3). The backrest frame (3) is movably connected with a positioning rod (12), and one end of the positioning rod (12) is movably plugged into the insert block four (11).

6. The office chair structure according to claim 5, characterized in that: A telescopic rod (13) is fixedly connected in the groove on the rear side of the backrest frame (3); the bottom end of the telescopic rod (13) is fixedly connected to a limiting plate (14); the bottom of the limiting plate (14) is fixedly connected to a limiting block (15); the bottom of the limiting block (15) is movably plugged into the positioning rod (12); and a spring (16) is sleeved on the surface of the telescopic rod (13).

7. The office chair structure according to claim 6, characterized in that: The seat plate (1) is provided with a movement cavity (17), and a movement plate (18) is slidably connected to the inner wall of the movement cavity (17). The bottom of the movement plate (18) is connected to the base plate (20) through a connecting rod (19), and the top of the base plate (20) is fixedly connected to a locking rod (21). A card plate (22) is provided on the right side of the seat plate (1), and the top of the locking rod (21) is movably plugged into the card plate (22). The left side of the card plate (22) is fixedly connected to a cross bar 1 (23), and the cross bar 1 (23) passes through the plug block 1 (5) and the plug block 3 (10) in sequence. The left side of the card plate (22) is fixedly connected to a cross bar 2 (24), and the left end of the cross bar 2 (24) is movably plugged into the plug block 2 (6). The surface of the connecting rod (19) is provided with a spring 2 (25).

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