Height-adjustable writing board

Abstract

The utility model discloses a height-adjustable writing board which comprises a support (1) and a writing board body (2), vertical rods (101) are arranged on the two sides of the support (1), and the writing board body (2) is installed between the vertical rods (101) on the two sides. The vertical rods (101) on the two sides are sequentially provided with n hanging holes (102) with the same number from top to bottom, and n is larger than or equal to 2; the vertical rods (101) on the two sides sequentially correspond to the hanging holes (102) from top to bottom in a one-to-one mode to form n adjusting gears; the two sides of the writing board (2) are each provided with one hanging piece (4), the hanging pieces (4) can be hung into any adjusting gear, and therefore the height of the writing board (2) on the vertical rod (101) can be rapidly adjusted. The writing board is simple in mounting structure, can be operated by a single person, and is simple and quick to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of cultural and educational supplies, and more specifically to a height-adjustable writing board. Background Art

[0002] A writing board is a reusable writing tool, such as a whiteboard or blackboard, and is usually used for teaching, conference discussions, or personal and family notes. Some writing boards are mounted on a bracket and are movable, making them very flexible to use. Some writing boards with brackets have several gears on the bracket to achieve height adjustment. Writing boards in the prior art are fixed by a structure in which fixing holes and fixing bolts are locked together, that is, a first fixing hole is provided on the bracket, and a second fixing hole is provided on the side wall of the writing board. The first fixing hole is aligned with the second fixing hole and then fixed with bolts. This prior art installation structure requires two people to install, and it is very difficult to align the holes during the installation process. During the gear shift operation, all bolts need to be removed before installation can be performed, and the operation steps are cumbersome and time-consuming. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a height-adjustable writing board with a simple installation structure, which can be operated by one person and can be easily and quickly assembled and disassembled.

[0004] The technical solution of the present utility model is to provide a height-adjustable writing board with the following structure, including a bracket and a writing board, wherein vertical poles are provided on both sides of the bracket, and the writing board is installed between the vertical poles on both sides; hanging holes, wherein the vertical poles on both sides are provided with n hanging holes of the same number in sequence from top to bottom, where n ≥ 2; adjustment gears, wherein the hanging holes on the vertical poles on both sides correspond to each other in sequence from top to bottom to form n adjustment gears; hanging parts, wherein hanging parts are provided on both sides of the writing board, and the hanging parts can be hung in any of the adjustment gears, so that the height of the writing board on the vertical poles can be quickly adjusted.

[0005] After adopting the above structure, the height-adjustable writing board of the present invention has the following advantages compared with the prior art:

[0006] Since the vertical poles on both sides of the height-adjustable writing board of the present invention are sequentially provided with n hanging holes of the same number from top to bottom, the hanging holes on the vertical poles on both sides correspond to each other in sequence to form n adjustment gears, and hanging parts are provided on both sides of the writing board. The hanging parts can be hung in any adjustment gear, and can be switched back and forth between the various adjustment gears as needed, so that the height of the writing board on the vertical poles can be quickly adjusted. This step can be completed by one person, and disassembly and assembly are simple and quick.

[0007] As an improvement, the writing board has locking holes on its side walls, and n connecting holes on its uprights, with the distance between two adjacent connecting holes being equal to the distance between two adjacent hanging holes. When the hanging member is engaged in one of the adjustment positions, the locking hole aligns with one of the connecting holes, and a locking member is connected between the locking hole and the connecting hole. With this structure, after the height of the writing board is adjusted, the locking member can lock the writing board and the uprights, ensuring a more stable installation.

[0008] As an improvement, the writing board is provided with a slide groove on both sides, each of which is embedded with a first fixing plate, and one end of the hanging member is connected to the first fixing plate. With this structure, the first fixing plate can be moved within the slide groove, thereby also moving the position of the hanging member, making it more flexible and convenient to use.

[0009] As an improvement, slots are provided on both side walls of the chute, and the two sides of the first fixing plate are inserted into the slots on both sides. This structure is simple and reliable, and the first fixing plate will not fall out of the chute. The slots have a limiting effect on the first fixing plate.

[0010] As an improvement, the middle portion of the first fixing plate is arched to form a first arched portion, and this first arched portion faces the opening of the chute. One end of the suspension member is connected to the first arched portion. With this structure, the middle portion of the first fixing plate is arched to form the first arched portion, and the first fixing plate can fit tightly within the chute, moving only when subjected to force, making installation more reliable.

[0011] As an improvement, a second fixing plate is embedded in each of the chute slots, and the locking hole is provided on the second fixing plate. With this structure, the second fixing plate can be moved within the chute slot, thereby also moving the position of the locking hole, making it more flexible and convenient to use, and also ensuring a more precise fit between the locking hole and the connecting hole.

[0012] As an improvement, the middle portion of the second fixing plate is arched to form a second arched portion, and this second arched portion faces the opening of the chute, and the locking hole is provided on this second arched portion. With this structure, the middle portion of the second fixing plate is arched to form the second arched portion, and the second fixing plate can fit more tightly within the chute, and will only move when subjected to force, making the installation more reliable.

[0013] As an improvement, the first arched portion of the first fixing plate is also provided with the locking hole. With this structure, the number of locking holes is increased, making the connection between the writing board and the upright pole more stable and secure.

[0014] As an improvement, the upper portion of the hanging hole is a first hole portion, and the lower portion is a second hole portion. The first and second hole portions are interconnected, and the first hole portion has a larger diameter than the second hole portion. The end of the hanging member can pass through the first hole portion, and the hanging member can be embedded in the second hole portion and cannot be axially separated from the second hole portion. With this structure, the first hole portion has a larger diameter, making it easier to insert and install the hanging member. The second hole portion matches the size of the hanging member, preventing the writing board from moving back and forth. This structure is more convenient for one person to hang the writing board.

[0015] As an improvement, a limiting cap is provided at the end of the hanging member, the diameter of the first hole portion is larger than the diameter of the limiting cap, and the diameter of the second hole portion is smaller than the diameter of the limiting cap. With this structure, the limiting cap plays a limiting role. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a height-adjustable writing board of the utility model.

[0017] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of part A.

[0018] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of part B.

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the second fixing piece of the height-adjustable writing board of the utility model.

[0020] Figure 5 The utility model is a schematic diagram of the three-dimensional structure of the column of the height-adjustable writing board.

[0021] As shown in the figure: 1. bracket, 101. vertical pole, 102. hanging hole, 103. first hole portion, 104. second hole portion, 105. connecting hole, 2. writing board, 201. slide groove, 202. slot, 203. locking hole, 3. first fixing plate, 301. first arch portion, 302. first threaded hole, 4. hanging part, 401. limiting cap, 5. locking part, 6. second fixing plate, 601. second arch portion. DETAILED DESCRIPTION

[0022] In order to better understand the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely descriptions of exemplary embodiments of the present application and are not intended to limit the scope of the present application in any way. Throughout the specification, the same reference numerals refer to the same elements.

[0023] In the accompanying drawings, the thickness, size and shape of objects have been slightly exaggerated for ease of explanation. The accompanying drawings are only examples and are not drawn strictly to scale.

[0024] It should also be understood that the terms “comprises,” “has,” “includes,” and “comprising,” when used in this specification, indicate the presence of the stated features, integers, steps, operations, elements, and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, and / or combinations thereof.

[0025] like Figures 1 to 5 As shown, this specific embodiment discloses a height-adjustable writing board, including a bracket 1 and a writing board 2. Vertical poles 101 are provided on both sides of the bracket 1, and the writing board 2 is installed between the vertical poles 101 on both sides.

[0026] The vertical rods 101 on both sides are sequentially provided with an equal number of n hanging holes 102 from top to bottom, where n ≥ 2. In this specific embodiment, there are two hanging holes 102. The hanging holes 102 on both sides of the vertical rods 101 correspond to each other from top to bottom to form n adjustment gears. That is, the first hanging holes 102 of the vertical rods 101 on both sides are at the same height. These two first hanging holes 102 form the first adjustment gear, and so on. In this specific embodiment, there are two adjustment gears. The writing board 2 is provided with a hanging member 4 on both sides. The hanging member 4 can be hung in any of the adjustment gears, thereby quickly adjusting the height of the writing board 2 on the vertical rods 101.

[0027] The upper portion of the hanging hole 102 is a first hole portion 103, and the lower portion of the hanging hole 102 is a second hole portion 104. The first hole portion 103 and the second hole portion 104 are interconnected, and the aperture of the first hole portion 103 is larger than the aperture of the second hole portion 104. The end of the hanging member 4 can pass through the first hole portion 103, and the hanging member 4 can be embedded in the second hole portion 104 and cannot be axially separated from the second hole portion 104. During operation, due to the larger aperture of the first hole portion 103, a single person can easily insert the hanging member 4 into the first hole portion 103. When the hanging members 4 on both sides of the writing board 2 are inserted into the first hole portion 103, the hanging members 4 on both sides can be embedded in the corresponding second hole portion 104 under the action of the gravity of the writing board 2. The hanging hole 102 can be a gourd hole.

[0028] The writing board 2 is provided with a slide groove 201 on both sides, and slots 202 are provided on both side walls of the slide groove 201. A first fixing plate 3 is embedded in each of the slide grooves 201, with both sides of the first fixing plate 3 inserted into the slots 202 on either side. The slots 202 on either side limit the first fixing plate 3, preventing it from slipping out of the opening of the slide groove 201. The middle portion of the first fixing plate 3 is arched to form a first raised portion 301, which faces the opening of the slide groove 201. One end of the hanging member 4 is connected to the first raised portion 301. The provision of the first raised portion 301 ensures that the thickness of the first fixing plate 3 matches that of the slide groove 201. The first fixing plate 3 fits tightly within the slide groove 201, and only by manually pushing can the first fixing plate 3 be moved within the slide groove. This structure ensures that the first fixing plate 3 is positioned correctly.

[0029] The end of the hanging member 4 is provided with a limiting cap 401. The diameter of the first hole portion 103 is larger than the diameter of the limiting cap 401, and the diameter of the second hole portion 104 is smaller than the diameter of the limiting cap 401. The second hole portion 104 can limit the limiting cap 401 to the inner side of the vertical rod 101, making the installation of the writing board 2 more secure. In this specific embodiment, the hanging member 4 is a bolt, and the limiting cap 401 is a nut. The first arched portion 301 is provided with a first threaded hole 302. One end of the screw of the bolt is screwed into the first threaded hole 302. This simple structure makes the hanging member 4 easy to install.

[0030] The writing board 2 has locking holes 203 formed on its sidewalls, and n connecting holes 105 formed on the uprights 101. The distance between two adjacent connecting holes 105 is equal to the distance between two adjacent hanging holes 102. This ensures that the locking holes 203 are aligned with one of the connecting holes 105 regardless of the adjustment position in which the writing board 2 is connected. When the hanging member 4 is engaged in one of the adjustment positions, the locking holes 203 are aligned with one of the connecting holes 105. A locking member 5 is connected between the locking holes 203 and the connecting holes 105. The locking member 5 secures the writing board 2 to the uprights 101, ensuring that the writing board 2 is stably mounted between the uprights 101 on both sides. In this specific embodiment, the locking hole 203 is a second threaded hole, and the locking member 5 is a locking bolt. When locking, the end of the screw of the locking member 5 passes through the connecting hole 105 and is screwed into the locking hole 203. When the bolt is tightened, the writing board 2 and the upright pole 101 can be locked. The writing board 2 and the upright pole 101 can be locked or unlocked by simply rotating the locking member 5, which is very convenient to operate.

[0031] A second fixing plate 6 is embedded in the chute 201. Both sides of the second fixing plate 6 are inserted into slots 202 on either side of the chute 201. The slots 202 on either side limit the second fixing plate 6, preventing it from slipping out of the opening of the chute 201. The middle portion of the second fixing plate 6 is arched to form a second raised portion 601, which faces the opening of the chute 201. The locking hole 203 is provided on the second raised portion 601. The second raised portion 601 ensures that the thickness of the second fixing plate 6 matches that of the chute 201. The second fixing plate 6 fits tightly within the chute 201 and can only be moved by manual force. This structure ensures that the second fixing plate 6 is positioned correctly. The first raised portion 301 of the first fixing plate 3 is also provided with the locking hole 203.

[0032] When using the height-adjustable writing board disclosed in the present application, first pick up the writing board 2 and hang the hanging members 4 on both sides of the writing board 2 in the hanging holes 102 of the two side vertical rods 101 of a certain gear. Then, install the locking members 5 between the two side walls of the writing board 2 and the corresponding vertical rods 101. The screws of the locking members 5 pass through the connecting holes 105 and screw into the locking holes 203 to lock and secure. When it is necessary to change gears or disassemble the writing board 2, first loosen the locking members 5 between the two side walls of the writing board 2 and the corresponding vertical rods 101. Then, remove the hanging members 4 on both sides of the writing board 2 from the hanging holes 102 of the two side vertical rods 101 one by one. In this way, the writing board 2 can be removed from the vertical rods 101. Disassembly and assembly can be performed by one person, and the operation is very convenient.

[0033] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the principles and spirit of the present application are included in the scope of protection of the present application.

Claims

1. A height-adjustable writing board, comprising a bracket (1) and a writing board (2), wherein both sides of the bracket (1) are provided with vertical rods (101), and the writing board (2) is installed between the vertical rods (101) on both sides; characterized in that: Hanging holes (102), the vertical poles (101) on both sides are provided with n hanging holes (102) of the same number in order from top to bottom, n ≥ 2; Adjust the gear position, the hanging holes (102) on the vertical poles (101) on both sides from top to bottom correspond to each other in sequence to form n adjustment gear positions; A hanging member (4) is provided on both sides of the writing board (2). The hanging member (4) can be hung in any of the adjustment gears, so that the height of the writing board (2) on the vertical pole (101) can be quickly adjusted.

2. The height-adjustable writing board according to claim 1, characterized in that: The side wall of the writing board (2) is provided with a locking hole (203), and the vertical rod (101) is provided with n connecting holes (105), and the distance between two adjacent connecting holes (105) is equal to the distance between two adjacent hanging holes (102); when the hanging member (4) is hung in one of the adjustment gears, the locking hole (203) is aligned with one of the connecting holes (105), and a locking member (5) is connected between the locking hole (203) and the connecting hole (105).

3. The height-adjustable writing board according to claim 2, characterized in that: Both sides of the writing board (2) are provided with a slide groove (201), a first fixing plate (3) is embedded in each of the slide grooves (201), and one end of the hanging member (4) is connected to the first fixing plate (3).

4. The height-adjustable writing board according to claim 3, characterized in that: Slots (202) are provided on both side walls of the slide groove (201), and both sides of the first fixing plate (3) are inserted into the slots (202) on both sides.

5. The height-adjustable writing board according to claim 3, characterized in that: The middle portion of the first fixing plate (3) is arched to form a first arched portion (301), and the first arched portion (301) faces the opening side of the sliding groove (201), and one end of the hanging member (4) is connected to the first arched portion (301).

6. The height-adjustable writing board according to claim 3, characterized in that: The second fixing plate (6) is embedded in each of the sliding grooves (201), and the locking hole (203) is provided on the second fixing plate (6).

7. The height-adjustable writing board according to claim 6, characterized in that: The middle portion of the second fixing plate (6) is arched to form a second arched portion (601), and the second arched portion (601) faces the opening side of the sliding groove (201), and the locking hole (203) is provided on the second arched portion (601).

8. The height-adjustable writing board according to claim 5, characterized in that: The first arched portion (301) of the first fixing plate (3) is also provided with the locking hole (203).

9. The height-adjustable writing board according to claim 1, characterized in that: The upper portion of the suspension hole (102) is a first hole portion (103), and the lower portion of the suspension hole (102) is a second hole portion (104). The first hole portion (103) and the second hole portion (104) are connected to each other, and the aperture of the first hole portion (103) is larger than the aperture of the second hole portion (104). The end of the suspension member (4) can pass through the first hole portion (103), and the suspension member (4) can be embedded in the second hole portion (104) and cannot be axially separated from the second hole portion (104).

10. The height-adjustable writing board according to claim 9, characterized in that: A limiting cap (401) is provided at the end of the suspension member (4), the aperture of the first hole portion (103) is larger than the diameter of the limiting cap (401), and the aperture of the second hole portion (104) is smaller than the diameter of the limiting cap (401).

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