Writing board guide rail sliding device

Abstract

The utility model is suitable for the technical field of writing boards, and provides a writing board guide rail sliding device which comprises a pair of guide rail shells arranged side by side and a pair of writing boards arranged between the two guide rail shells, the two writing boards are arranged in a staggered mode, a pair of sliding rails are symmetrically arranged on the guide rail shells in a sliding mode, and the pair of sliding rails are arranged on the guide rail shells in a sliding mode. The writing board is fixedly installed on the sliding rails, pulley blocks are symmetrically arranged in the guide rail shell, a braking assembly used for limiting rotation of the pulley blocks is arranged in the guide rail shell, and the braking assembly comprises a pair of movable plates symmetrically and movably arranged in the guide rail shell and a driving unit driving the two movable plates to move relatively. The side face, close to the pulley block, of the movable plate is fixedly provided with braking teeth, rotation of the pulley block can be effectively limited through the braking assembly, and therefore the writing board can be fixed at any position, and the problem that in the prior art, the writing board can only be fixed at a specific position is solved.

Description

Technical Field

[0001] This utility model relates to the field of writing board technology, specifically a writing board guide rail sliding device. Background Technology

[0002] In modern education and office settings, writing boards serve as an important tool for information display and communication. Their convenience and functionality play a key role in improving efficiency. The writing board guide rail sliding device is the core component that enables the writing board to move flexibly and directly affects the user experience.

[0003] Traditional writing board sliding mechanisms have significant limitations: in existing technology, when sliding two writing boards, they can only be fixed at the top or bottom, which greatly restricts the flexibility of use. In actual teaching or office work, it is often necessary to fix the writing board in any suitable position based on factors such as the content to be displayed, user habits, and space layout. For example, in teaching, a teacher may need to fix one writing board in the middle of the blackboard to display different teaching content simultaneously, or in office meetings, participants may want to adjust the writing board to a height convenient for note-taking and discussion. However, existing sliding mechanisms cannot meet these diverse needs, causing users to frequently adjust the writing board position during operation, consuming a lot of time and energy, and affecting the smoothness of teaching and office work.

[0004] Furthermore, because it can only be fixed in a specific location, the display space of the writing board cannot be fully utilized. When a lot of information needs to be displayed, the position of the writing board cannot be flexibly arranged according to the actual situation, which reduces the efficiency of the writing board. Moreover, this inflexible fixing method also increases the risk of the writing board accidentally sliding, which may interfere with ongoing teaching or office activities.

[0005] Therefore, developing a guide rail sliding device that can fix the writing board in any position is of great practical significance. This will help improve teaching and office efficiency, optimize the user experience, and promote the development of related fields. Utility Model Content

[0006] The purpose of this invention is to provide a writing board guide rail sliding device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A writing board guide rail sliding device includes a pair of guide rail housings arranged side by side and a pair of writing boards disposed between the two guide rail housings. The two writing boards are staggered. A pair of slide rails are symmetrically slidably arranged on the guide rail housings. The writing boards are fixedly mounted on the slide rails. A pulley group is symmetrically arranged inside the guide rail housings. A braking component for limiting the rotation of the pulley group is provided inside the guide rail housings. The braking component includes a pair of movable plates symmetrically movably arranged inside the guide rail housings and a driving unit for driving the two movable plates to move relative to each other. Braking teeth are fixedly provided on the side of the movable plates near the pulley group.

[0009] As a further embodiment of this utility model: the driving unit includes a transmission gear rotatably disposed in the guide rail housing and movable parts disposed on both sides of the transmission gear. The transmission gear is located between two sets of pulleys. The movable parts have an L-shaped structure and are movably disposed via a limiting rail. The side of the movable parts is fixedly provided with teeth that mesh with the transmission gear. The movable plate is fixedly mounted on the horizontal plate of the movable parts.

[0010] As a further embodiment of this utility model, a knob connected to the transmission gear is also installed on the outer side of the guide rail housing.

[0011] As a further embodiment of this utility model: each pulley group includes multiple fixed gears arranged in parallel and rotating within the guide rail housing, and a spur rack that meshes with the fixed gears is fixedly provided on the side of the slide rail.

[0012] As a further embodiment of this utility model: the two fixed gears located on both sides of the transmission gear in the two pulley sets are connected by a synchronous pulley set, and the synchronous pulley set is staggered from the moving parts.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The braking assembly of this utility model can effectively limit the rotation of the pulley block. Specifically, when the drive unit drives the two movable plates to move closer to each other, the braking teeth on the movable plates engage with the pulley block, thereby fixing the pulley block and enabling the writing board to be fixed in any position, solving the problem that the existing technology can only be fixed in a specific position. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure of a writing board guide rail sliding device;

[0016] Figure 2 This is a top view of the guide rail housing in a writing board guide rail sliding device;

[0017] Figure 3 This is a cross-sectional view of the guide rail shell in a writing board guide rail sliding device;

[0018] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0019] Figure 5 for Figure 3 Enlarged view at point B in the middle;

[0020] Figure 6 for Figure 5 Enlarged 3D view of the moving parts and moving plates;

[0021] In the diagram: 1. Guide rail housing; 2. Writing board; 3. Slide rail; 4. Pulley block; 5. Movable plate; 6. Brake gear; 7. Transmission gear; 8. Movable part; 9. Limit rail; 10. Gear; 11. Knob; 12. Fixed gear; 13. Spur rack; 14. Synchronous belt pulley block. Detailed Implementation

[0022] The technical solution of this patent will be further described in detail below with reference to specific embodiments. Example

[0023] Please see Figure 1-6 A writing board guide rail sliding device includes a pair of guide rail shells 1 arranged side by side and a pair of writing boards 2 disposed between the two guide rail shells 1. The two writing boards 2 are staggered, which increases the flexibility of use and display area of ​​the writing boards 2. A pair of slide rails 3 are symmetrically slidably arranged on the guide rail shells 1, and the writing boards 2 are fixedly mounted on the slide rails 3. Pulley groups 4 are symmetrically arranged inside the guide rail shells 1, which realize the sliding of the slide rails 3 on the guide rail shells 1, making the movement of the writing boards 2 smoother. The guide rail shells 1 are also provided with a mechanism to limit the rotation of the pulley groups 4. The braking assembly includes a pair of movable plates 5 symmetrically and movably arranged within the guide rail housing 1, and a drive unit that drives the two movable plates 5 to move relative to each other. Braking teeth 6 are fixedly arranged on the side of the movable plates 5 near the pulley block 4. The braking assembly can effectively limit the rotation of the pulley block 4. Specifically, when the drive unit drives the two movable plates 5 to move closer to each other, the braking teeth 6 on the movable plates 5 engage with the pulley block 4, thereby fixing the pulley block 4 and fixing the writing board 2 at any position, solving the problem that the existing technology can only fix it at a specific position.

[0024] The drive unit includes a transmission gear 7 rotatably mounted within the guide rail housing 1 and movable parts 8 positioned on either side of the transmission gear 7. The transmission gear 7 is located between two sets of pulley blocks 4. The movable parts 8 have an L-shaped structure and are movably mounted via limiting rails 9. Teeth 10 that mesh with the transmission gear 7 are fixedly provided on the side of the movable parts 8. The movable plate 5 is fixedly mounted on the horizontal plate of the movable parts 8. The drive unit uses the meshing of the transmission gear 7 and the movable parts 8 to convert the rotation of the transmission gear 7 into the linear motion of the movable parts 8, thereby driving the relative movement of the movable plate 5. This structural design is simple and stable, enabling precise control of the movement of the movable plate 5 and ensuring that the braking teeth 6 accurately engage with the pulley blocks 4, achieving a reliable braking effect.

[0025] In addition, a knob 11 connected to the transmission gear 7 is installed on the outer side of the guide rail housing 1. The knob 11 makes it convenient for users to operate the rotation of the transmission gear 7 from outside the guide rail housing 1 without opening the guide rail housing 1. The operation is simple and convenient, which improves the user's control efficiency in fixing and moving the writing board 2. Example

[0026] This embodiment is an improvement on embodiment 1, specifically as follows:

[0027] Please see Figure 2-5 Each pulley assembly 4 includes multiple fixed gears 12 arranged in parallel and rotatably within the guide rail housing 1. A spur rack 13, meshing with the fixed gears 12, is fixedly mounted on the side of the slide rail 3. The meshing structure between the fixed gears 12 and the spur rack 13 makes the slide rail 3 slide more smoothly and precisely on the guide rail housing 1. The arrangement of multiple fixed gears 12 increases the stability of the transmission, ensuring that the writing tablet 2 will not experience jamming or shaking during movement, thus improving the user experience of the writing tablet 2.

[0028] In addition, the two fixed gears 12 located on both sides of the transmission gear 7 in the two pulley sets 4 are connected by a synchronous pulley set 14. The synchronous pulley set 14 is offset from the moving part 8. The synchronous pulley set 14 ensures the synchronous rotation of the two pulley sets 4, enabling the two writing boards 2 to move synchronously and avoiding positional deviation. The offset from the moving part 8 avoids mutual interference, ensuring the normal operation of the entire device and improving its reliability and stability.

[0029] When it is necessary to move the writing board 2, turn the knob 11 to make the transmission gear 7 rotate. The transmission gear 7 drives the movable parts 8 on both sides to move in opposite directions on the limit rail 9, so that the movable plates 5 move away from each other. The brake tooth 6 disengages from the fixed gear 12 of the pulley group 4. At this time, the pulley group 4 can rotate freely. Since the spur rack 13 on the side of the slide rail 3 meshes with the fixed gear 12, by pushing the writing board 2, the fixed gear 12 rotates and drives the slide rail 3 to slide on the guide rail shell 1, thereby realizing the movement of the writing board 2.

[0030] Once the writing board 2 is moved to the desired position, the knob 11 is rotated in the opposite direction. The transmission gear 7 drives the movable part 8 to move in opposite directions. The movable plate 5 approaches the pulley group 4, and the brake gear 6 meshes with the fixed gear 12, restricting the rotation of the fixed gear 12, thereby fixing the slide rail 3 and realizing the fixation of the writing board 2 in any position. At the same time, the synchronous pulley group 14 ensures the synchronous rotation of the two pulley groups 4, so that the two writing boards 2 can move and be fixed synchronously.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A chalkboard guide rail sliding device comprising a pair of guide rail housings (1) arranged side by side and a pair of chalkboards (2) arranged between the two guide rail housings (1), the two chalkboards (2) being arranged staggered, characterized in that, A pair of slide rails (3) are symmetrically arranged on the guide rail shell (1), and a writing board (2) is fixedly installed on the slide rails (3); a pair of pulley blocks (4) are symmetrically arranged in the guide rail shell (1), and a brake assembly for limiting rotation of the pulley blocks (4) is arranged in the guide rail shell (1); the brake assembly comprises a pair of movable plates (5) which are symmetrically movably arranged in the guide rail shell (1) and a driving unit for driving relative movement of the two movable plates (5); the movable plates (5) are fixedly provided with brake teeth (6) on the side close to the pulley blocks (4).

2. The chalkboard guide rail sliding device according to claim 1, wherein The driving unit comprises a transmission gear (7) which is rotatably arranged in the guide rail shell (1) and a movable piece (8) which is arranged on both sides of the transmission gear (7); the transmission gear (7) is located between the two pulley blocks (4); the movable piece (8) has an L-shaped structure and is movably arranged through a limiting rail (9); the side of the movable piece (8) is fixedly provided with gear teeth (10) which are engaged with the transmission gear (7); and the movable plate (5) is fixedly installed on the horizontal plate of the movable piece (8).

3. The chalkboard guide rail sliding device according to claim 2, wherein A knob (11) connected with the transmission gear (7) is further installed on the outer side of the guide rail shell (1).

4. The chalkboard guide rail sliding device according to claim 2, wherein Each of the pulley blocks (4) comprises a plurality of fixed gears (12) which are arranged in parallel and rotatably in the guide rail shell (1); and the slide rails (3) are fixedly provided with a straight rack (13) which is engaged with the fixed gears (12).

5. The chalkboard guide rail sliding device according to claim 4, wherein The two fixed gears (12) located on both sides of the transmission gear (7) in the two pulley blocks (4) are drivingly connected through a synchronous belt pulley set (14); and the synchronous belt pulley set (14) is arranged in a staggered manner with the movable piece (8).

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