Seat writing board connecting structure

Abstract

The utility model relates to the technical field of seat accessories, in particular to a seat writing board connecting structure which comprises a support seat, a fixing block is rotatably connected into the support seat, a swing rod is rotatably connected to the fixing block, and a writing board is fixedly connected to the end, away from the fixing block, of the swing rod. A positioning block is formed at the end, away from the writing board, of the fixing block, a limiting block is fixed to the end, close to the fixing block, of the swing rod, a limiting stroke groove and a limiting groove are formed in two side plates of the support base, and the positioning block slides in the limiting stroke groove. The device is simple in structure, low in production cost and convenient to use.

Description

Technical Field

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

[0002] Chairs with writing boards are generally used in government, enterprise, school, college classrooms and other lecture venues to facilitate people to take notes.

[0003] Chinese patent CN216627998U discloses a flippable writing board, including a U-shaped bracket seat, a swing rod and a writing board body, one end of the swing rod is connected to the writing board body; the other end of the swing rod is hinged to the bracket seat through a rotating shaft sleeve, and an arc guide structure is arranged between the swing rod and the rotating shaft sleeve, and the arc guide structure includes an arc guide groove and a guide member slidably connected to the arc guide groove; when the writing board body is flipped relative to the bracket seat, the guide member moves along the guide of the arc guide groove to rotate the swing rod relative to the rotating shaft sleeve. The utility model utilizes the characteristics of the smooth transition surface of the arc guide groove to avoid the swing rod from being easily stuck when rotating relative to the rotating shaft sleeve, and has the advantages of reliable structure and good user experience, but its structure is complex, the processing difficulty is large, and the cost is high. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The purpose of the utility model is to provide a 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 seat writing board connection structure, including a bracket seat, a fixed block is rotatably connected inside the bracket seat, a swing rod is rotatably connected to the fixed block, the writing board is fixedly connected to one end of the swing rod away from the fixed block, a positioning block is formed on the end of the fixed block away from the writing board, a limiting block is fixed to the end of the swing rod close to the fixed block, and a limiting stroke groove and a limiting groove are provided on the two side plates of the bracket seat, and the positioning block slides in the limiting stroke groove.

[0008] Preferably, the limit travel groove limits the turning range of the fixed block in its travel groove to 180 degrees.

[0009] Preferably, the limit groove is used to limit the rotation range of the swing rod, and when the writing board rotates to the horizontal direction along with the swing rod, the limit block abuts against the limit groove.

[0010] Preferably, the writing board is formed with a placement groove for placing a water bottle and a writing pen.

[0011] Preferably, the fixing block is rotatably connected to the bracket seat via bolts.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: through the cooperation of the limit travel groove on the bracket seat and the positioning block on the fixed block, a limit effect is played on the flipping of the rocker arm, thereby preventing the writing board from over-flipping when stored or unfolded; through the cooperation of the limit groove on the bracket seat and the limit block on the rocker arm, a limit effect is played on the rotation of the rocker arm, thereby ensuring that the writing board is fixed when it is rotated to a horizontal state, thereby facilitating writing; through the placement groove on the surface of the writing board, a water bottle and a writing pen can be placed, thereby improving the practicality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] 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.

[0015] Figure 1 This is a structural schematic diagram of the writing board of the utility model in use;

[0016] Figure 2 It is a structural schematic diagram of the writing board of the utility model in the storage state.

[0017] In the figure: 1- bracket seat, 2- fixed block, 3- rocker, 4- writing board, 5- positioning block, 6- limit block, 7- limit travel slot, 8- limit slot. DETAILED DESCRIPTION

[0018] 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.

[0019] 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.

[0020] Please refer to the attached Figure 1 To Attachment Figure 2 The utility model is a seat writing board connection structure, including a bracket seat 1, a fixed block 2 is rotatably connected inside the bracket seat 1, a swing rod 3 is rotatably connected to the fixed block 2, a writing board 4 is fixedly connected to the end of the swing rod 3 away from the fixed block 2, a positioning block 5 is formed on the end of the fixed block 2 away from the writing board 4, a limiting block 6 is fixed to the end of the swing rod 3 close to the fixed block 2, and a limiting stroke groove 7 and a limiting groove 8 are provided on the two side plates of the bracket seat 1, and the positioning block 5 slides in the limiting stroke groove 7;

[0021] It should be noted that, through the cooperation between the limit travel groove 7 on the bracket seat 1 and the positioning block 5 on the fixed block 2, a limiting effect is played on the flipping of the rocker arm 3, preventing the writing board 4 from excessively flipping when stored or unfolded; through the cooperation between the limit groove 8 on the bracket seat 1 and the limit block 6 on the rocker arm 3, a limiting effect is played on the rotation of the rocker arm 6, ensuring that the writing board 4 is fixed when it is rotated to a horizontal state, which is convenient for writing.

[0022] Furthermore, the limit travel groove 7 limits the turning range of the fixing block 2 in its travel groove to 180 degrees.

[0023] Furthermore, the limit slot 8 is used to limit the rotation range of the swing rod 3. When the writing board 4 rotates to a horizontal state along with the swing rod 3, the limit block 6 abuts against the limit slot 8.

[0024] Furthermore, the writing board 4 is formed with a placement slot for placing a water bottle and a writing pen.

[0025] Furthermore, the fixing block 2 is rotatably connected to the bracket seat 1 via bolts.

[0026] Working principle: When using the seat writing board, lift the writing board 4 to drive the swing rod 3 to flip, and the swing rod 3 flips to drive the fixed block 2 to flip to a horizontal state in the limit stroke groove 7 on the bracket seat 1, and then rotate the swing rod 3 to limit the limit block 6 on the swing rod 3 with the limit groove 8 on the bracket seat 1, so that the writing board 4 is rotated to a horizontal position for the occupant to use.

[0027] 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 seat writing board connection structure, comprising a bracket seat (1), characterized in that The bracket seat (1) is internally rotatably connected with a fixed block (2), the fixed block (2) is rotatably connected with a swing rod (3), the end of the swing rod (3) away from the fixed block (2) is fixedly connected with a writing board (4), the end of the fixed block (2) away from the writing board (4) is formed with a positioning block (5), the end of the swing rod (3) close to the fixed block (2) is fixed with a limiting block (6), the two side plates of the bracket seat (1) are provided with a limiting stroke groove (7) and a limiting groove (8), and the positioning block (5) slides in the limiting stroke groove (7).

2. A seat writing board connection structure as claimed in claim 1, characterized in that: The limit travel groove (7) limits the range of the fixed block (2) turning over in its travel groove to 180 degrees.

3. A seat writing board connection structure as claimed in claim 1, characterized in that: The limiting groove (8) is used to limit the rotation range of the swing rod (3); when the writing board (4) rotates to a horizontal position along with the swing rod (3), the limiting block (6) abuts against the limiting groove (8).

4. A seat writing board connection structure as claimed in claim 1, characterized in that: The writing board (4) is formed with a placement groove for placing a water bottle and a writing pen.

5. The seat writing board connection structure according to claim 1, characterized in that: The fixing block (2) is rotatably connected to the bracket seat (1) via bolts.

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