Rotatable writing board
By designing a rotatable writing tablet and utilizing angle adjustment components and limiting structures, the problems of large space occupation and uncomfortable sitting posture of the writing tablet were solved, and the rotatability and stability were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- AVERY DISPLAY (JIANGSU) CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-05-15
AI Technical Summary
Existing fixed writing boards take up a lot of space, are inconvenient to use, and cannot be adjusted in posture, causing discomfort.
A rotatable writing board was designed, which realizes the rotation angle adjustment and stable fixation of the writing board through the angle adjustment component and the limiting structure, including the cooperation of the angle limiting shoulder and the limiting groove, the support structure of the lead screw and the screw sleeve, and the fastening connection of the ring plate.
It achieves the rotatability and storage of the writing tablet, improves user comfort and stability, and solves the problems of space occupation and posture adjustment.
Smart Images
Figure CN224234942U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of furniture technology, specifically a rotatable writing board. Background Technology
[0002] In real life, in government, corporate, and school settings where lectures and academic events are held, attendees often need to take notes or place items on the floor. Therefore, some chairs and sofas come with built-in writing boards. However, fixed writing boards take up a lot of space, cannot be stored away, and can cause inconvenience for attendees, as well as discomfort due to the inability to adjust their posture. Therefore, there is an urgent need to design a rotating writing board to solve these problems. Utility Model Content
[0003] The purpose of this invention is to provide a rotatable writing board, which solves the problems mentioned above with existing fixed writing boards, which take up a lot of space, cannot be stored, and cause inconvenience for listeners to get in and out and make them feel crowded and uncomfortable due to the inability to adjust their sitting posture.
[0004] To solve the above-mentioned technical problems, this utility model provides a rotatable writing board, including a support arm, a rotating base, a fixed plate, a board body, and a first ring plate. The lower part of the rotating base is disposed on the support arm, and the upper part cooperates with the fixed plate through an angle adjustment component. The board body is disposed on the fixed plate.
[0005] The angle adjustment assembly includes an angle limiting shoulder and a limiting groove. The angle limiting shoulder is disposed on the outer wall of the rotating seat, and the limiting groove is formed on the fixed plate. The angle limiting shoulder is fitted in the limiting groove to limit the rotation angle of the fixed plate. The upper end of the first ring plate is fixedly disposed at the bottom of the plate body, and the lower end is fixedly connected to a lead screw through the limiting groove of the fixed plate. The lead screw is fitted in the rotating seat.
[0006] Furthermore, the angle limiting shoulder is an arc-shaped shoulder, and a first limiting wall and a second limiting wall are respectively provided on both sides.
[0007] Furthermore, the limiting groove is provided with a first baffle and a second baffle. The included angle between the first baffle and the second baffle is smaller than the included angle between the first limiting wall and the second limiting wall. The first baffle is used to abut against the first limiting wall for limiting, or the second baffle is used to abut against the second limiting wall for limiting.
[0008] Furthermore, the limiting groove is provided with an arc-shaped segment, and the inner wall of the arc-shaped segment of the limiting groove rotates in cooperation with the outer wall of the arc-shaped shoulder of the angle limiting shoulder.
[0009] Furthermore, the plate body and the fixing plate are fixed together by fastening bolts.
[0010] Furthermore, the support arm is L-shaped, and a second ring plate is provided on the support arm.
[0011] Furthermore, the rotating seat is provided with a first annular plate mating hole, a through hole, a placement hole, and a second annular plate mating hole in sequence from top to bottom. The upper end of the first annular plate mating hole penetrates the top of the rotating seat and is mated with the first annular plate. A threaded sleeve is provided in the through hole, and the lower part of the threaded sleeve extends into the placement hole. After the lead screw passes through the through hole and the threaded sleeve, a limiting nut is screwed onto its end. The limiting nut is located in the placement hole.
[0012] The lower end of the second ring plate mating hole penetrates the bottom of the rotating seat. The second ring plate is disposed in the second ring plate mating hole. A step is formed between the placement hole and the second ring plate mating hole. The second ring plate is fixed on the step by fastening bolts.
[0013] The beneficial effects of this utility model are: the writing board of this utility model can adjust the rotation angle between the rotating seat and the fixed plate through the angle adjustment component, so that the user can rotate the writing board to meet their own comfort.
[0014] The angle limiting shoulder and the limiting groove are matched and limited. By rotating the angle limiting shoulder, its first limiting wall abuts against the first stop wall of the limiting groove or its second limiting wall abuts against the second stop wall of the limiting groove, so as to effectively control the rotation range of the writing board and improve the rotatability and storage of the writing board.
[0015] The rotating seat design allows the inner wall of the first ring plate's mating hole to rotate along the circumferential direction of the first ring plate, limiting the position of the fixed plate and the plate body in various directions while also improving the smoothness of their rotation. The through-hole threaded sleeve and the lead screw and threaded sleeve at the bottom of the first ring plate provide support for the fixed plate and the plate body, improving smoothness and allowing for disassembly. The second ring plate's mating hole mates with the second ring plate, and the second ring plate is locked onto the step formed by the placement hole and the second ring plate's mating hole using fastening bolts. This improves the tightness between the rotating seat and the support arm, preventing the rotating seat from rotating with the fixed plate and the plate body, thus enhancing the stability of the writing board. Attached Figure Description
[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is an exploded view of a rotatable writing board according to this utility model;
[0018] Figure 2 This is a structural diagram of the rotating base of a rotatable writing board according to this utility model;
[0019] Figure 3 This is a bottom view of the rotating base of a rotatable writing board according to this utility model;
[0020] Figure 4 This is a bottom view of a rotatable writing board according to this utility model;
[0021] Figure 5 This is a top view of a rotatable writing board without a support arm, according to this utility model.
[0022] In the diagram: 1-support arm, 2-rotating seat, 3-fixed plate, 4-plate body, 5-first ring plate, 11-second ring plate, 21-first ring plate mating hole, 22-through hole, 23-placement hole, 24-second ring plate mating hole, 61-angle limiting shoulder, 62-limiting groove, 63-lead screw, 611-first limiting wall, 612-second limiting wall, 621-first baffle, 622-second baffle. Detailed Implementation
[0023] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0024] In one specific embodiment of this utility model, such as Figure 1-5 As shown, a rotatable writing tablet is disclosed, including a support arm 1, a rotating base 2, a fixed plate 3, a plate body 4, and a first ring plate 5. The lower part of the rotating base 2 is mounted on the support arm 1, and the upper part cooperates with the fixed plate 3 through an angle adjustment component. The plate body 4 is mounted on the fixed plate 3.
[0025] The angle adjustment assembly includes an angle limiting shoulder 61 and a limiting groove 62. The angle limiting shoulder 61 is disposed on the outer wall of the rotating seat 2, and the limiting groove 62 is opened on the fixed plate 3. The angle limiting shoulder 61 is disposed in the limiting groove 62 to limit the rotation angle of the fixed plate 3. The upper end of the first ring plate 5 is fixedly disposed at the bottom of the plate body 4, and the lower end passes through the limiting groove 62 of the fixed plate 3 and is fixedly connected to a lead screw 63. The lead screw 63 is disposed in the rotating seat 2.
[0026] The angle limiting shoulder 61 and the limiting groove 62 are designed to limit the rotation range of the writing board by rotating the angle limiting shoulder 61 so that its first limiting wall 611 abuts against the first stop wall 621 of the limiting groove 62 or its second limiting wall 612 abuts against the second stop wall 622 of the limiting groove 62, thereby effectively controlling the rotation range of the writing board and improving its rotatability and storage capacity.
[0027] The angle limiting shoulder 61 is an arc-shaped shoulder, and a first limiting wall 611 and a second limiting wall 612 are respectively provided on both sides of it.
[0028] The limiting groove 62 is provided with a first baffle 621 and a second baffle 622. The included angle between the first baffle 621 and the second baffle 622 is smaller than the included angle between the first limiting wall 611 and the second limiting wall 612. The first baffle 621 is used to abut against the first limiting wall 611 for limiting, or the second baffle 622 is used to abut against the second limiting wall 612 for limiting. In this embodiment, the included angle between the first limiting wall 611 and the second limiting wall 612 is preferably 90°.
[0029] The limiting groove 62 has an arc-shaped section inside, and the inner wall of the arc-shaped section of the limiting groove 62 rotates in cooperation with the outer wall of the arc-shaped shoulder of the angle limiting shoulder 61.
[0030] The plate 4 and the fixing plate 3 are fixed together by fastening bolts.
[0031] The support arm 1 is L-shaped and has a second ring plate 11. The support arm 1 is fixed to the object being used by several bolts. The object being used can be a seat, sofa, etc.
[0032] The rotating base 2 has, from top to bottom, a first annular plate mating hole 21, a through hole 22, a placement hole 23, and a second annular plate mating hole 24. The upper end of the first annular plate mating hole 21 penetrates the top of the rotating base 2 and mates with the first annular plate 5. A threaded sleeve is installed in the through hole 22, and the lower part of the threaded sleeve extends into the placement hole 23. The lead screw 63 passes through the through hole 22 and the threaded sleeve, and a limiting nut is screwed onto its end. The limiting nut is located in the placement hole 23.
[0033] The lower end of the second ring plate mating hole 24 penetrates the bottom of the rotating seat 2. The second ring plate 11 is set in the second ring plate mating hole 24. The placement hole 23 and the second ring plate mating hole 24 form a step. The second ring plate 11 is fixed on the step by fastening bolts.
[0034] The rotating seat 2 allows the inner wall of the first ring plate mating hole 21 inside the rotating seat 2 to rotate along the circumferential wall of the first ring plate 5, thereby limiting the position of the fixed plate 3 and the plate body 4 in various directions and improving the smoothness of rotation of the fixed plate 3 and the plate body 4. The threaded sleeve inside the through hole 22 and the threaded rod 63 at the bottom of the first ring plate 5 and the threaded sleeve can support the fixed plate 3 and the plate body 4, improve the smoothness, and also allow for the disassembly of the fixed plate 3 and the plate body 4. The second ring plate mating hole 24 mates with the second ring plate 11, and the second ring plate 11 is locked onto the step formed by the placement hole 23 and the second ring plate mating hole 24 by fastening bolts, thereby improving the tightness between the rotating seat 2 and the support arm 1, preventing the rotating seat 2 from rotating with the rotation of the fixed plate 3 and the plate body 4, and improving the stability of the writing board.
[0035] The writing board of this utility model is designed so that the rotation angle between the rotating base 2 and the fixed plate 3 can be adjusted by the angle adjustment component, so that the user can rotate the writing board to meet their own comfort level.
[0036] The working process of this utility model:
[0037] Installation process of the writing tablet:
[0038] The support arm 1 is fixed to the object by several bolts, and the second ring plate of the rotating seat 2 is fitted onto the second ring plate 11 on the support arm 1 by fitting the second ring plate 24 with the fitting hole 24. The second ring plate 11 is locked onto the step formed by the placement hole 23 and the fitting hole 24 of the second ring plate by fastening bolts.
[0039] Additionally, the fixing plate 3 is fixed to the bottom of the plate body 4 with bolts, and the first ring plate 5 is fixed to the bottom of the plate body 4. At the same time, the center of the first ring plate 5 is aligned with the center of the arc segment of the limiting groove 62. The lead screw 63 at the bottom of the first ring plate 5 is passed through the first ring plate mating hole 21 in the rotating seat 2 and then screwed over the threaded sleeve to extend out. The fixing plate 3 and the bottom first ring plate 5 move downward at the same time. When the first ring plate 5 is inserted into the first ring plate mating hole 21, the limiting groove 62 on the fixing plate 3 is fitted onto the outer wall of the angle limiting shoulder 61. The upper end of the angle limiting shoulder 61 is in contact with the bottom of the fixing plate 3. The limiting nut is screwed on the end of the extended lead screw 63 so that the limiting nut is located in the placement hole 23. The limiting nut abuts against the step formed by the placement hole 23 and the through hole 22 to form a limit, thereby realizing the installation.
[0040] The writing board rotation process:
[0041] Rotate plate 4 to drive fixed plate 3 to rotate. At the same time, the inner wall of the limiting groove 62 on fixed plate 3 rotates along the peripheral wall of the arc-shaped shoulder of the angle limiting shoulder 61 of rotating seat 2. When the first limiting wall 611 of angle limiting shoulder 61 abuts against the first stop wall 621 of limiting groove 62, the fixed plate 3 is in a state parallel to the support arm 1. When the second limiting wall 612 of angle limiting shoulder 61 abuts against the second stop wall 622 of limiting groove 62, the fixed plate 3 is in a state perpendicular to the support arm 1, so as to realize the angle switching of the horizontal plane of fixed plate 3.
[0042] The above-disclosed embodiment is merely a preferred embodiment of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A rotatable writing board, characterized in that, It includes a support arm (1), a rotating seat (2), a fixed plate (3), a plate body (4), and a first ring plate (5). The lower part of the rotating seat (2) is disposed on the support arm (1), and the upper part cooperates with the fixed plate (3) through an angle adjustment component. The plate body (4) is disposed on the fixed plate (3). The angle adjustment assembly includes an angle limiting shoulder (61) and a limiting groove (62). The angle limiting shoulder (61) is disposed on the outer wall of the rotating seat (2), and the limiting groove (62) is opened on the fixed plate (3). The angle limiting shoulder (61) is disposed in the limiting groove (62) to limit the rotation angle of the fixed plate (3). The upper end of the first ring plate (5) is fixedly disposed at the bottom of the plate body (4), and the lower end passes through the limiting groove (62) of the fixed plate (3) and is fixedly connected to a lead screw (63). The lead screw (63) is disposed in the rotating seat (2).
2. The rotatable writing board according to claim 1, characterized in that, The angle limiting shoulder (61) is an arc-shaped shoulder, and a first limiting wall (611) and a second limiting wall (612) are respectively provided on both sides.
3. A rotatable writing board according to claim 2, characterized in that, The limiting groove (62) is provided with a first baffle (621) and a second baffle (622). The included angle between the first baffle (621) and the second baffle (622) is smaller than the included angle between the first limiting wall (611) and the second limiting wall (612). The first baffle (621) is used to abut against the first limiting wall (611) for limiting, or the second baffle (622) is used to abut against the second limiting wall (612) for limiting.
4. A rotatable writing board according to claim 3, characterized in that, The limiting groove (62) is provided with an arc-shaped section, and the inner wall of the arc-shaped section of the limiting groove (62) rotates in cooperation with the outer wall of the arc-shaped shoulder of the angle limiting shoulder (61).
5. A rotatable writing board according to claim 1, characterized in that, The plate (4) and the fixing plate (3) are fixed together by fastening bolts.
6. A rotatable writing board according to claim 1, characterized in that, The support arm (1) is L-shaped, and a second ring plate (11) is provided on the support arm (1).
7. A rotatable writing board according to claim 6, characterized in that, The rotating base (2) is provided with a first ring plate mating hole (21), a through hole (22), a placement hole (23), and a second ring plate mating hole (24) in sequence from top to bottom. The upper end of the first ring plate mating hole (21) penetrates the top of the rotating base (2) and is mated with the first ring plate (5). A threaded sleeve is provided in the through hole (22), and the lower part of the threaded sleeve extends into the placement hole (23). The lead screw (63) passes through the through hole (22) and the threaded sleeve, and a limiting nut is screwed on its end. The limiting nut is located in the placement hole (23). The lower end of the second ring plate mating hole (24) passes through the bottom of the rotating seat (2). The second ring plate (11) is set in the second ring plate mating hole (24). The placement hole (23) and the second ring plate mating hole (24) form a step. The second ring plate (11) is fixed on the step by fastening bolts.