A semi-automatic seat writing board connection structure

Abstract

The utility model relates to the technical field of seat accessories, and in particular to a semi-automatic seat writing board connection structure, including a bracket seat, a fixed block and a gas spring rod are arranged in the bracket seat, the fixed block is rotatably connected to the bracket seat, a connection hole is provided at one end of the fixed block, one end of the gas spring rod is rotatably connected to the connection hole, and the other end is rotatably connected to the bracket seat, a through hole is provided in the middle of the fixed block, a swing rod is rotatably connected in the through hole, and a writing board is fixedly connected to one end of the swing rod away from the fixed block. The utility model realizes automatic storage of the writing board into a storage box when storing it through the gas spring rod, and under the buffering effect of the gas spring rod, it avoids the impact caused by the writing board falling freely into the storage box, thereby causing damage to the writing board connection structure.

Description

Technical Field

[0001] The utility model relates to the technical field of seat accessories, in particular to a semi-automatic seat writing board connection structure. Background Art

[0002] Chairs with writing boards are generally used in government, business, school, college classrooms and other lecture venues for the audience to take notes.

[0003] Chinese patent CN220199138U discloses a folding writing board for a seat, comprising a storage box, a tray rack, a mounting seat, a first positioning plate and a second positioning plate, wherein the storage box is mounted on one side of the seat, the tray rack is fixedly mounted on the bottom of the writing board, the mounting seat comprises a swivel column and a limit tube, the swivel column is rotatably connected to one side of the opening of the storage box, the limit tube is fixedly mounted on the swivel shaft, the limit tube is rotatably connected to one end of the connecting shaft of the tray rack, a limit groove is arranged on the side of the limit tube, the limit groove is used for sliding connection of the limit column mounted on the connecting shaft, the first positioning plate is used to locate the rotation angle of the mounting seat, and the second positioning plate is used to locate the storage position of the writing board. The utility model can store the writing board on the side of the seat, which not only improves the aesthetics, but also shortens the distance between the writing board and the occupant, but when storing the writing board, it is necessary to manually place the writing board in the storage box, and if the writing board falls freely into the storage box, it will cause an impact and damage the writing board connection structure. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The purpose of the utility model is to provide a semi-automatic seat writing board connection structure to solve the problems raised in the above background technology.

[0006] (II) Technical solution

[0007] The utility model adopts the following technical solutions to solve the above technical problems: a semi-automatic seat writing board connection structure, including a bracket seat, a fixed block and a gas spring rod are arranged in the bracket seat, the fixed block is rotatably connected to the bracket seat, a connecting hole is opened at one end of the fixed block, one end of the gas spring rod is rotatably connected to the connecting hole, and the other end is rotatably connected to the bracket seat, a through hole is opened in the middle of the fixed block, a swing rod is rotatably connected in the through hole, and the writing board is fixedly connected to the end of the swing rod away from the fixed block.

[0008] Preferably, a positioning block is fixed on the rocker arm, the positioning block is fitted with an end surface of the fixing block, and a fixing bolt is threadedly connected to the tail handle of the rocker arm.

[0009] Preferably, a limiting groove is provided on the side plate of the bracket seat, and a limiting block is formed at the end surface where the fixing block and the positioning block are in contact, and the limiting groove and the limiting block are both used to limit the rotation range of the swing arm.

[0010] Preferably, the limit groove and the limit block limit the rotation range of the swing rod to 90°, and when the writing board rotates to a horizontal state and a vertical state along with the swing rod, the positioning block abuts against the limit groove and the limit block respectively.

[0011] Preferably, a spring slot is provided in the through hole, a spring is provided in the spring slot, one end of the spring abuts against the inner wall of the spring slot, and the other end of the spring abuts against the fixing bolt of the tail handle of the rocker arm.

[0012] Preferably, the writing board is formed with a placement groove for placing a water bottle and a writing pen.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model has the following beneficial effects: by limiting the limiting groove and the limiting block by the positioning block, the writing board is prevented from over-turning when being stored or unfolded, thereby ensuring that the writing board is in a horizontal state when unfolded, which is convenient for writing, and in a vertical state when stored, which is convenient for storage in a storage box; by the cooperation of the spring groove, the spring and the tightening bolt, the rotation tightness of the swing arm can be adjusted by tightening the tightening bolt under the elastic force of the spring; by the gas spring rod, the writing board can be automatically stored in the storage box when stored, and under the buffering effect of the gas spring rod, the impact caused by the free fall of the writing board into the storage box to damage the connecting structure of the writing board is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the structure of the utility model in the unfolded state;

[0017] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the utility model in the storage state;

[0019] Figure 4 It is a structural schematic diagram of the fixing block of the utility model;

[0020] Figure 5 It is a cross-sectional structural schematic diagram of the fixing block of the utility model;

[0021] Figure 6 for Figure 1 Enlarged view of part A in the middle.

[0022] In the figure: 1- bracket seat, 2- fixing block, 3- gas spring rod, 4- connecting hole, 5- through hole, 6- rocker arm, 7- writing board, 8- positioning block, 9- fastening bolt, 10- limiting groove, 11- limiting block, 12- spring groove, 13- spring. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] Please see attached Figure 1 To Attachment Figure 6 The utility model is a semi-automatic chair writing board connection structure, including a bracket seat 1, a fixing block 2 and a gas spring rod 3 are arranged in the bracket seat 1, the fixing block 2 is rotatably connected to the bracket seat 1, a connecting hole 4 is opened at one end of the fixing block 2, one end of the gas spring rod 3 is rotatably connected to the connecting hole 4, and the other end is rotatably connected to the bracket seat 1, a through hole 5 is opened in the middle of the fixing block 2, a swing rod 6 is rotatably connected in the through hole 5, and a writing board 7 is fixedly connected to the end of the swing rod 6 away from the fixing block 2;

[0026] It should be noted that the gas spring rod 3 can be used to automatically store the writing board 7 into the storage box when storing it, and the gas spring rod 3 can be used to buffer the writing board 7 from being hit when it freely falls into the storage box, thereby preventing the writing board connection structure from being damaged.

[0027] Furthermore, a positioning block 8 is fixed on the swing rod 6, the positioning block 8 is in contact with the end surface of the fixing block 2, and a fixing bolt 9 is screwed to the tail handle of the swing rod 6;

[0028] Furthermore, a spring slot 12 is provided in the through hole 5, and a spring 13 is provided in the spring slot 12. One end of the spring 13 abuts against the inner wall of the spring slot 12, and the other end abuts against the fastening bolt 9 of the tail handle of the swing rod 6.

[0029] It should be noted that, through the cooperation of the spring slot 12 , the spring 13 and the fixing bolt 9 , under the elastic force of the spring 13 , by tightening the fixing bolt 9 , the tightness of the rotation of the swing arm 6 can be adjusted.

[0030] Furthermore, a limiting groove 10 is provided on the side plate of the bracket seat 1, and a limiting block 11 is formed at the end surface where the fixing block 2 and the positioning block 8 are in contact. The limiting groove 10 and the limiting block 11 are both used to limit the rotation range of the swing rod 6;

[0031] Furthermore, the limit groove 10 and the limit block 11 limit the swing rod 6 to rotate by 90°. When the writing board 7 rotates to the horizontal and vertical states along with the swing rod 6, the positioning block 8 abuts against the limit groove 10 and the limit block 11 respectively.

[0032] It should be noted that the positioning block 8 limits the limit groove 10 and the limit block 10 to prevent the writing board 7 from excessively flipping when stored or unfolded, thereby ensuring that the writing board 7 is in a horizontal state when unfolded, which is convenient for writing, and is in a vertical state when stored, which is convenient for storage in a storage box.

[0033] Furthermore, the writing board 7 is formed with a placement slot for placing a water bottle and a writing pen.

[0034] Working principle: when unfolding the seat writing board, lift the writing board 7 to drive the swing rod 6 to flip to a horizontal state, and then rotate the swing rod 6, through the limiting effect of the positioning block 8 on the swing rod 6 on the limit groove 10 and the limit block 10, the writing board 7 is rotated to a horizontal state, which is convenient for writing; when storing the seat writing board, rotate the swing rod 6, through the limiting effect of the positioning block 8 on the swing rod 6 on the limit groove 10 and the limit block 10, the writing board 7 is rotated to a vertical state, and then under the action of the gas spring rod 3, the writing board 7 is automatically stored in the storage box, and under the buffering effect of the gas spring rod 3, the writing board 7 is prevented from being hit when it falls freely into the storage box, thereby causing damage to the writing board connection structure.

[0035] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A semi-automatic seat writing board connection structure, comprising a bracket seat (1), characterized in that The support seat (1) is provided with a fixed block (2) and a gas spring rod (3), the fixed block (2) is rotatably connected to the support seat (1), one end of the fixed block (2) is provided with a connecting hole (4), one end of the gas spring rod (3) is rotatably connected to the connecting hole (4), and the other end is rotatably connected to the support seat (1), a through hole (5) is provided in the middle of the fixed block (2), a swing rod (6) is rotatably connected in the through hole (5), and a writing board (7) is fixedly connected to the end of the swing rod (6) away from the fixed block (2).

2. A semi-automatic seat writing board connection structure as claimed in claim 1, characterized in that: A positioning block (8) is fixed on the swing rod (6), the positioning block (8) is in contact with the end surface of the fixing block (2), and a fixing bolt (9) is screwed onto the tail handle of the swing rod (6).

3. A semi-automatic seat writing board connection structure as claimed in claim 1, characterized in that: A limiting groove (10) is provided on the side plate of the bracket seat (1), and a limiting block (11) is formed at the end surface where the fixing block (2) and the positioning block (8) are in contact. The limiting groove (10) and the limiting block (11) are both used to limit the rotation range of the swing rod (6).

4. A semi-automatic seat writing board connection structure as claimed in claim 3, characterized in that: The limiting groove (10) and the limiting block (11) limit the rotation range of the swing rod (6) to 90 degrees. When the writing board (7) rotates to a horizontal state and a vertical state along with the swing rod (6), the positioning block (8) abuts against the limiting groove (10) and the limiting block (11) respectively.

5. A semi-automatic seat writing board connection structure as claimed in claim 1, characterized in that: A spring groove (12) is provided in the through hole (5), a spring (13) is provided in the spring groove (12), one end of the spring (13) abuts against the inner wall of the spring groove (12), and the other end abuts against the fastening bolt (9) of the tail handle of the swing rod (6).

6. A semi-automatic seat writing board connection structure as claimed in claim 1, characterized in that: The writing board (7) is formed with a placement groove for placing a water bottle and a writing pen.

Images