Classroom competition writing board
By designing an adjustment and folding locking mechanism on the classroom competition writing board, the problem of the existing technology that it cannot be used by multiple students at the same time and the height cannot be adjusted is solved. Highly flexible adjustment and stable folding of the support rod are achieved, which improves the user experience.
Patent Information
- Application Number
- CN202422592560.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-26
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-10-26
AI Technical Summary
Existing classroom competition writing boards cannot accommodate two students answering questions face to face at the same time, and the height cannot be easily adjusted, making it uncomfortable for students of different heights to use.
A classroom competition writing board is designed. The height adjustment and folding lock of the support rod are achieved through an adjustment mechanism and a folding lock mechanism. The adjustment mechanism includes a fixed plate, a locking rod and a spring. The folding lock mechanism includes a movable rod and a buckle plate to achieve height adjustment and stable folding of the support rod.
The height of the writing board can be flexibly adjusted to meet the needs of students of different heights, and the support rods can be ensured not to fall apart after folding, thereby improving the user experience.
Smart Images
Figure CN223478627U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of writing board technology, specifically relating to a writing board for classroom competitions. Background Technology
[0002] A classroom competition writing board is a tool used in language education and competition scenarios. It usually consists of a writing surface that can be written on repeatedly, allowing participants to answer questions, demonstrate, or conduct other writing-related activities within a limited time. This type of writing board is widely used in classroom competitions, intellectual competitions, quiz contests, and other scenarios.
[0003] However, in actual use, it has been found that most existing writing boards require students to answer questions one by one, and two students cannot answer questions face to face at the same time. Furthermore, the height of most existing writing boards cannot be easily adjusted, making it uncomfortable for students of different heights to use and inconvenient for users. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a classroom competition writing board with the advantages of easy adjustment of the writing board height and easy folding and locking of the support rod.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a classroom competition writing board, including a connecting seat, with two correspondingly distributed rotating shafts rotatably connected inside the connecting seat, and two correspondingly distributed support rods fixedly connected to the outside of each of the two rotating shafts, a connecting rod fixedly connected between each pair of support rods, a connecting rope fixedly connected between the two connecting rods, a writing board provided outside each pair of support rods, an adjustment mechanism provided outside the support rods, and a folding locking mechanism provided outside the support rods.
[0006] Preferably, the adjustment mechanism includes two fixed plates, which are respectively fixedly connected to both sides of the writing board. The fixed plates have locking holes inside. An L-shaped plate is fixedly connected to the outside of the support rod. A locking rod is movably inserted into the inside of the L-shaped plate. A fixing ring is fixedly connected to the outside of the locking rod. A spring is sleeved on the outside of the locking rod. The spring is located between the L-shaped plate and the fixing ring. The locking rod is inserted into the locking hole.
[0007] Preferably, the locking rod is externally fixedly connected to a handle, the handle being made of stainless steel and having a circular shape.
[0008] Preferably, the number of locking holes is six, and the six locking holes are evenly distributed on the outside of the fixing plate.
[0009] Preferably, the folding locking mechanism includes a movable rod, which is fixedly connected to the outside of one of the support rods. A rotating plate is rotatably connected to the outside of the movable rod, and a buckle plate is fixedly connected to the outside of the rotating plate. A retaining block is fixedly connected to the outside of the other support rod, and a retaining hole is provided inside the retaining block.
[0010] Preferably, a fixing bolt is inserted into the inside of the buckle plate, and the fixing bolt is threaded into the fixing hole.
[0011] Preferably, each of the four support rods has a base hinged to its bottom, and the base is made of rubber.
[0012] Compared with the prior art, the beneficial effects of the present invention are:
[0013] By pulling the two handles outwards, the writing board is pulled downwards, which in turn moves the fixed plates on both sides downwards. When it reaches the appropriate position, the handles are released, and the spring elasticity pushes the locking rod forward, thus inserting it into the locking hole. At this point, the height of the writing board is adjusted. The multiple locking holes allow for easy adjustment of the writing board's height, flexibly adapting to students of different heights.
[0014] By rotating the support rods towards the center until they are joined together, and then rotating the rotating plate, the plate rotates around the movable rod, causing the fixed buckle plate to hook onto the outside of the fixing block. Then, the fixing bolt is rotated, and the screw is threaded into the fixing hole. At this point, the positions of the two support rods are locked, ensuring that they will not fall apart when folded and placed, making it more convenient for users to use. Attached Figure Description
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 This is a top view of the overall structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the overall side structure of this utility model;
[0018] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.
[0019] In the diagram: 1. Connecting seat; 2. Rotating shaft; 3. Support rod; 4. Base; 5. Connecting rod; 6. Connecting rope; 7. Writing board; 8. Adjustment mechanism; 801. Fixing plate; 802. Locking hole; 803. Pull handle; 804. L-shaped plate; 805. Fixing ring; 806. Locking rod; 807. Spring; 9. Folding locking mechanism; 901. Movable rod; 902. Rotating plate; 903. Buckle plate; 904. Fixing bolt; 905. Retaining block; 906. Fixing hole. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example
[0021] Please see Figure 1-4 This utility model provides a technical solution: a classroom competition writing board, including a connecting seat 1, with two correspondingly distributed rotating shafts 2 rotatably connected inside the connecting seat 1, and two correspondingly distributed support rods 3 fixedly connected to the outside of each of the two rotating shafts 2, a connecting rod 5 fixedly connected between each pair of support rods 3, a connecting rope 6 fixedly connected between the two connecting rods 5, a writing board 7 set outside each pair of support rods 3, an adjustment mechanism 8 set outside the support rods 3, a folding locking mechanism 9 set outside the support rods 3, and a base 4 hinged to the bottom of each of the four support rods 3, the base 4 being made of rubber.
[0022] In this implementation scheme, the height of the writing board 7 can be easily adjusted by the adjustment mechanism 8, so as to facilitate writing for students of different heights. The folding locking mechanism 9 can be easily locked after the support rod 3 is folded to prevent it from falling apart. Example
[0023] Please see Figure 1-4Based on Embodiment 1, this utility model provides a technical solution: the adjustment mechanism 8 includes two fixing plates 801, which are respectively fixedly connected to both sides of the writing board 7. The fixing plates 801 have locking holes 802 inside. An L-shaped plate 804 is fixedly connected to the outside of the support rod 3. A locking rod 806 is movably inserted into the inside of the L-shaped plate 804. A fixing ring 805 is fixedly connected to the outside of the locking rod 806. A spring 807 is sleeved on the outside of the locking rod 806. The spring 807 is located between the L-shaped plate 804 and the fixing ring 805. The locking rod 806 is inserted into the locking hole 802. A handle 803 is fixedly connected to the outside of the locking rod 806. The handle 803 is made of stainless steel and is circular in shape. There are six locking holes 802, which are evenly distributed on the outside of the fixing plates 801.
[0024] In this embodiment, when it is necessary to conveniently adapt to the use of students of different heights, first pull the two handles 803 outwards, then pull the writing board 7 downwards, which will drive the fixed plates 801 fixed on both sides to move downwards at the same time. When it moves to the appropriate position, release the handles 803. At this time, the elasticity of the spring 807 will push the locking rod 806 forward, thereby inserting it into the locking hole 802. At this time, the height adjustment of the writing board 7 is completed. Through the multiple locking holes 802, the different heights of the writing board 7 can be conveniently adjusted, thereby flexibly adapting to the use of students of different heights. Example
[0025] Please see Figure 1-3 Based on Embodiment 1 and Embodiment 2, this utility model provides a technical solution: the folding locking mechanism 9 includes a movable rod 901, which is fixedly connected to the outside of one of the support rods 3. A rotating plate 902 is rotatably connected to the outside of the movable rod 901, and a buckle plate 903 is fixedly connected to the outside of the rotating plate 902. A retaining block 905 is fixedly connected to the outside of the other support rod 3. A fixing hole 906 is provided inside the retaining block 905. A fixing bolt 904 is inserted into the inside of the buckle plate 903, and the fixing bolt 904 is threaded into the fixing hole 906.
[0026] In this embodiment, to prevent the support rods from unfolding after folding, the support rods 3 are first rotated towards the center until they are joined together. Then, the rotating plate 902 is rotated. At this time, the rotating plate 902 rotates around the movable rod 901, which in turn drives the fixed buckle plate 903 to be hooked onto the outside of the fixing block 905. Then, the fixing bolt 904 is rotated, and then the screw is threaded into the fixing hole 906. At this time, the positions of the two support rods 3 have been locked, thus ensuring that they will not unfold when folded and placed, making it more convenient for users to use.
[0027] The working principle and usage process of this utility model are as follows: When it is necessary to conveniently adapt to students of different heights, first pull the two handles 803 outwards, then pull the writing board 7 downwards. This will cause the fixed plates 801 on both sides to move downwards simultaneously. When it moves to the appropriate position, release the handles 803. At this time, the elasticity of the spring 807 will push the locking rod 806 forward, thereby inserting it into the locking hole 802. At this point, the height adjustment of the writing board 7 is completed. The multiple locking holes 802 allow for convenient adjustment of the writing board. The different heights of the 7 support rods allow for flexible use by students of different heights. To prevent them from unfolding after folding, first rotate the support rod 3 towards the center until they are joined together. Then rotate the rotating plate 902, which rotates around the movable rod 901. This causes the fixed buckle plate 903 to hook onto the outside of the fixing block 905. Then rotate the fixing bolt 904, which is then threaded into the fixing hole 906. At this point, the positions of the two support rods 3 are locked, ensuring that they will not unfold when folded, making it more convenient for users.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A classroom competition writing board, comprising a connecting base (1), characterized in that: The connecting seat (1) has two correspondingly distributed rotating shafts (2) rotatably connected inside. Two correspondingly distributed support rods (3) are fixedly connected to the outside of each of the two rotating shafts (2). A connecting rod (5) is fixedly connected between each pair of support rods (3). A connecting rope (6) is fixedly connected between the two connecting rods (5). A writing board (7) is provided on the outside of each pair of support rods (3). An adjustment mechanism (8) is provided on the outside of the support rods (3). A folding locking mechanism (9) is provided on the outside of the support rods (3).
2. The classroom competition writing board according to claim 1, characterized in that: The adjustment mechanism (8) includes two fixing plates (801), which are fixedly connected to the two sides of the writing board (7). The fixing plates (801) have locking holes (802) inside. An L-shaped plate (804) is fixedly connected to the outside of the support rod (3). A locking rod (806) is movably inserted into the inside of the L-shaped plate (804). A fixing ring (805) is fixedly connected to the outside of the locking rod (806). A spring (807) is sleeved on the outside of the locking rod (806). The spring (807) is located between the L-shaped plate (804) and the fixing ring (805). The locking rod (806) is inserted into the locking hole (802).
3. A classroom competition writing board according to claim 2, characterized in that: The locking rod (806) is externally fixedly connected to a handle (803), which is made of stainless steel and is circular in shape.
4. A classroom competition writing board according to claim 3, characterized in that: The number of the locking holes (802) is six, and the six locking holes (802) are evenly distributed on the outside of the fixing plate (801).
5. A classroom competition writing board according to claim 4, characterized in that: The folding locking mechanism (9) includes a movable rod (901), which is fixedly connected to the outside of one of the support rods (3). A rotating plate (902) is rotatably connected to the outside of the movable rod (901), and a buckle plate (903) is fixedly connected to the outside of the rotating plate (902). A retaining block (905) is fixedly connected to the outside of the other support rod (3), and a fixing hole (906) is provided inside the retaining block (905).
6. A classroom competition writing board according to claim 5, characterized in that: A fixing bolt (904) is inserted inside the buckle plate (903), and the fixing bolt (904) is threaded into the fixing hole (906).
7. A classroom competition writing board according to claim 6, characterized in that: The bottom of each of the four support rods (3) is hinged to a base (4), and the base (4) is made of rubber.