Cauditorium chair writing board with rotary positioning function

Abstract

The utility model relates to the technical field of auditorium chair writing boards, in particular to an auditorium chair writing board with a rotary positioning function, which comprises an auditorium chair, one end of the auditorium chair is fixedly connected with a shell, one end of the inner wall of the auditorium chair is fixedly connected with a straight board, a writing board is arranged above the shell, and the straight board is fixedly connected with the shell. And two block bodies are arranged below the writing board. Through cooperation of an auditorium chair, a straight plate, a shell, a straight cylinder, a block body, a writing board, a rod body and an adjusting structure, a motor drives a worm to rotate, the worm drives a worm wheel to rotate, the worm wheel drives an inclined rod to rotate, the inclined rod drives a round rod to move upwards, the round rod drives a vertical rod to move upwards, then the writing board is adjusted to the proper height, and the writing board is rotated; and after the writing board is adjusted to a proper angle, the nut is rotated to move inwards on the outer wall of the lead screw, so that the writing board is rotationally positioned, the writing board can be rotationally positioned at different heights according to the requirements of personnel, and the use comfort is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of auditorium chair writing boards, in particular to an auditorium chair writing board with a rotation and positioning function. Background Art

[0002] Auditorium chairs are mostly composed of five parts: seat, back, armrests, feet, and writing board. In general, the feet and armrests are integrated into a firmly installed armrest frame. The structure is generally steel-wood structure, steel-plastic structure, or aluminum-wood structure.

[0003] There is an auditorium chair writing board with a rotation and positioning function (application number: 202021788794.X) which solves the problem that the existing writing board is set on the side of the armrest, which easily affects the usability and occupies space. The above problem still exists. When using the auditorium chair, sometimes it is necessary to record some content. At this time, the writing board on the auditorium chair will be used. The above device can rotate and position the writing board. However, due to the different users, it is not convenient to rotate and position the writing board at different heights according to the needs of the users, so the comfort of the users is low. Moreover, when using the writing board, it is not convenient to adjust the horizontal position of the writing board, which easily causes different people to be farther or closer to the writing board, further affecting the comfort of use. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings in the prior art that it is inconvenient to rotate and position the writing board at different heights according to the needs of personnel, resulting in low comfort for personnel, and it is inconvenient to adjust the lateral position of the writing board, which further affects the comfort of use. A writing board with a rotation and positioning function for an auditorium chair is proposed.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An auditorium chair writing board with a rotation positioning function is designed, comprising an auditorium chair, one end of the auditorium chair is fixedly connected to a shell, one end of the inner wall of the auditorium chair is fixedly connected to a straight board, a writing board is arranged above the shell, two blocks are arranged below the writing board, and an adjustment structure is arranged on one side of the auditorium chair.

[0007] Preferably, the adjustment structure includes a motor, the bottom of the motor is fixedly connected to the bottom of the inner wall of the auditorium chair, the output end of the motor is fixedly connected to a worm, the upper outer wall of the worm is rotatably connected to the inner wall of the straight plate through a bearing, one side of the worm is meshingly connected with a worm wheel, the rear end of the worm wheel is rotatably connected to the rear end of the inner wall of the auditorium chair through a pin shaft, the front end face of the worm wheel is fixedly connected to an inclined rod, a through groove on one side of the inclined rod is gap-matched with the outer wall of the round rod, the rear end of the round rod is fixedly connected to a vertical rod, the upper outer wall of the vertical rod is gap-matched with the top inner wall of the shell, a screw is provided above the vertical rod, one end of the screw is fixedly connected to a convex block on one side of the bottom of the writing board, one side of the outer wall of the screw is gap-matched with the top convex block of the block, and the outer wall of the screw is threadedly connected with a nut.

[0008] Preferably, a rod body is gap-matched in the bottom oblique groove of the block on one side, and the bottom of the rod body is fixedly connected to the top of the straight tube on one side.

[0009] Preferably, one end of the block on the other side is rotatably connected to the top of the straight cylinder on the other side through a pin.

[0010] Preferably, the bottom through groove of the straight tube is gap-matched with the upper outer wall of the vertical rod, a screw is threadedly connected to the inner wall of one end of the straight tube, and one end of the screw is rotatably connected to the upper side of the vertical rod through a bearing.

[0011] Preferably, a storage battery is fixedly connected to one side of the front end surface of the auditorium chair, and a control switch is installed on one side of the front end surface of the auditorium chair.

[0012] The utility model provides an auditorium chair writing board with a rotation positioning function, and has the beneficial effect that: through the coordination of the auditorium chair, the straight board, the shell, the straight tube, the block, the writing board, the rod body and the adjustment structure, the device can be used to drive the worm to rotate through the motor, the worm drives the worm wheel to rotate, the worm wheel drives the inclined rod to rotate, the inclined rod drives the round rod to move upward, the round rod drives the vertical rod to move upward, and then the writing board is adjusted to a suitable height, the writing board is rotated, and after the writing board is adjusted to a suitable angle, the nut is rotated to make the nut move inward on the outer wall of the screw rod, and then the writing board is rotated and positioned, which is convenient for rotating and positioning the writing board at different heights according to the needs of personnel, and improves the comfort of use;

[0013] Through the coordination of the vertical rod, straight tube, block, rod body, screw and writing board, when the device is in use, the screw rod can be rotated, the screw rod drives the straight tube to move left and right, the straight tube drives the block body and the rod body to move left and right, and then the writing board is moved left and right, so that the horizontal position of the writing board can be adjusted, and the comfort of use can be further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the auditorium chair, battery and control switch of the utility model;

[0016] Figure 3 This is a schematic diagram of the straight tube, rod body, and block structure of the utility model;

[0017] Figure 4 It is a schematic diagram of the structure of the worm, worm wheel and inclined rod of the utility model;

[0018] Figure 5 It is a schematic diagram of the structure of the vertical rod, the oblique rod and the round rod of the utility model;

[0019] Figure 6 The utility model is a schematic diagram of the writing board, nut and screw rod structure.

[0020] In the figure: 1, auditorium chair, 2, adjustment structure, 2a1, vertical rod, 2a2, motor, 2a3, worm, 2a4, worm wheel, 2a5, inclined rod, 2a6, round rod, 2a7, nut, 2a8, lead screw, 2b1, curved plate, 3, battery, 4, control switch, 5, housing, 6, straight cylinder, 7, screw, 8, straight plate, 9, block, 10, writing board, 11, rod body. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings:

[0022] Embodiment 1:

[0023] Refer to the attached Figure 1-6In the present embodiment, a writing board for an auditorium chair with a rotation positioning function comprises an auditorium chair 1, one end of the auditorium chair 1 is fixedly connected to a shell 5, one end of the inner wall of the auditorium chair 1 is fixedly connected to a straight board 8, a writing board 10 is arranged above the shell 5, and two blocks 9 are arranged below the writing board 10, a rod 11 is fitted in the bottom oblique groove gap of the block 9 on one side, the bottom of the rod 11 is fixedly connected to the top of the straight tube 6 on one side, and one end of the block 9 on the other side is rotatably connected to the top of the straight tube 6 on the other side through a pin shaft, and the pin shaft enables the block 9 on the other side to rotate on the top of the straight tube 6 on the other side when a force is applied, and the bottom of the straight tube 6 The through groove is matched with the clearance above the outer wall of the vertical rod 2a1, and the inner wall of one end of the straight tube 6 is threadedly connected with a screw 7, and one end of the screw 7 is rotatably connected to the upper side of the vertical rod 2a1 through a bearing. The bearing allows the screw 7 to rotate above the side of the vertical rod 2a1 when a force is applied. A battery 3 is fixedly connected to one side of the front end face of the auditorium chair 1, and a control switch 4 is installed on one side of the front end face of the auditorium chair 1. The battery 3 and the control switch 4 are electrically connected to the motor 2a2. An adjustment structure 2 is provided on one side of the auditorium chair 1. The adjustment structure 2 facilitates the rotation and positioning of the writing board 10 at different heights according to the needs of the personnel, thereby improving the comfort of use.

[0024] The adjustment structure 2 includes a motor 2a2, the bottom of the motor 2a2 is fixedly connected to the bottom of the inner wall of the auditorium chair 1, the model of the motor 2a2 is determined according to the actual use situation, the output end of the motor 2a2 is fixedly connected to a worm 2a3, the upper part of the outer wall of the worm 2a3 is rotatably connected to the inner wall of the straight plate 8 through a bearing, one side of the worm 2a3 is meshedly connected to a worm wheel 2a4, the rear end of the worm wheel 2a4 is rotatably connected to the rear end of the inner wall of the auditorium chair 1 through a pin, the front end surface of the worm wheel 2a4 is fixedly connected to an inclined rod 2a5, a through groove on one side of the inclined rod 2a5 is matched with the outer wall clearance of the round rod 2a6, and when the inclined rod 2a5 is rotated under force The round rod 2a6 can be driven to move up and down. The rear end of the round rod 2a6 is fixedly connected with the vertical rod 2a1. The upper part of the outer wall of the vertical rod 2a1 is clearance matched with the top inner wall of the shell 5. A screw rod 2a8 is arranged above the vertical rod 2a1. One end of the screw rod 2a8 is fixedly connected with the bottom side projection of the writing board 10. One side of the outer wall of the screw rod 2a8 is clearance matched with the top projection of the block 9. When the screw rod 2a8 is subjected to force, it can rotate on the inner wall of the top projection of the block 9. The outer wall of the screw rod 2a8 is threadedly connected with a nut 2a7, which is convenient for rotating and positioning the writing board 10 at different heights according to personnel needs, thereby improving the comfort of use.

[0025] Working principle:

[0026] When using auditorium chair 1:

[0027] The auditorium chair 1 is connected to the ground by bolts, the motor 2a2 is electrically connected to the battery 3, and the writing board 10 is rotated to move the block 9 on one side out of the outer wall of the rod body 11, thereby opening the front of the auditorium chair 1. After the person sits on the auditorium chair 1, the writing board 10 is rotated back to its original position, and the block 9 on one side is reinserted into the outer wall of the rod body 11, and the control switch 4 is pressed to start the motor 2a2, and the motor 2a2 drives the worm 2a3 to rotate, the worm 2a3 drives the worm wheel 2a4 to rotate, and the worm wheel 2a4 drives the inclined rod 2 a5 rotates, the oblique rod 2a5 drives the round rod 2a6 to move upward, the round rod 2a6 drives the vertical rod 2a1 to move upward, and then the writing board 10 is adjusted to a suitable height, the screw rod 7 is rotated, the screw 7 drives the straight tube 6 to move, the lateral position of the writing board 10 is adjusted, the writing board 10 is rotated, and after the writing board 10 is adjusted to a suitable angle, the nut 2a7 is rotated to make the nut 2a7 move inward on the outer wall of the screw rod 2a8, thereby realizing the rotation positioning of the writing board 10, and placing the paper on the writing board 10, which is convenient for people to use.

[0028] Embodiment 2:

[0029] Refer to the attached Figure 1-6 In this embodiment, an auditorium chair writing board with a rotation positioning function is provided, wherein the adjustment structure 2 may further include a curved plate 2b1, the bottom of the curved plate 2b1 being fixedly connected to one side of the top of the writing board 10.

[0030] Working principle:

[0031] When a person is taking notes and placing a paper on the top of the writing board 10 , the setting of the curved plate 2 b 1 prevents the paper from falling from the right end of the writing board 10 .

[0032] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. An auditorium chair writing board with a rotation positioning function, comprising an auditorium chair (1), characterized in that: One end of the auditorium chair (1) is fixedly connected to a shell (5), one end of the inner wall of the auditorium chair (1) is fixedly connected to a straight board (8), a writing board (10) is provided above the shell (5), two blocks (9) are provided below the writing board (10), one side of the auditorium chair (1) is provided with an adjustment structure (2), the adjustment structure (2) comprises a motor (2a2), the bottom of the motor (2a2) is fixedly connected to the bottom of the inner wall of the auditorium chair (1), the output end of the motor (2a2) is fixedly connected to a worm (2a3), the upper part of the outer wall of the worm (2a3) is rotatably connected to the inner wall of the straight board (8) through a bearing, one side of the worm (2a3) is meshingly connected to a worm wheel (2a4), the worm wheel (2a4) The rear end of the worm wheel (2a4) is rotatably connected to the rear end of the inner wall of the auditorium chair (1) through a pin shaft, the front end surface of the worm wheel (2a4) is fixedly connected to an inclined rod (2a5), a through groove on one side of the inclined rod (2a5) is gap-matched with the outer wall of the round rod (2a6), the rear end of the round rod (2a6) is fixedly connected to a vertical rod (2a1), the upper part of the outer wall of the vertical rod (2a1) is gap-matched with the top inner wall of the shell (5), a screw rod (2a8) is provided above the vertical rod (2a1), one end of the screw rod (2a8) is fixedly connected to a convex block on one side of the bottom of the writing board (10), one side of the outer wall of the screw rod (2a8) is gap-matched with the top convex block of the block (9), and the outer wall of the screw rod (2a8) is threadedly connected to a nut (2a7).

2. The auditorium chair writing board with a rotation positioning function according to claim 1, characterized in that: A rod body (11) is fitted in the bottom inclined groove gap of the block body (9) on one side, and the bottom of the rod body (11) is fixedly connected to the top of the straight cylinder (6) on one side.

3. The auditorium chair writing board with a rotation positioning function according to claim 2, characterized in that: One end of the block (9) on the other side is rotatably connected to the top of the straight cylinder (6) on the other side via a pin.

4. The auditorium chair writing board with a rotation positioning function according to claim 3, characterized in that: The bottom through groove of the straight cylinder (6) is clearance-matched with the upper outer wall of the vertical rod (2a1); the inner wall of one end of the straight cylinder (6) is threadedly connected with a screw rod (7); one end of the screw rod (7) is rotatably connected to the upper side of one side of the vertical rod (2a1) via a bearing.

5. The auditorium chair writing board with a rotation positioning function according to claim 4, characterized in that: A storage battery (3) is fixedly connected to one side of the front end surface of the auditorium chair (1), and a control switch (4) is installed on one side of the front end surface of the auditorium chair (1).

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