Extensible area push-pull splicing blackboard

Abstract

The utility model relates to teaching equipment technical field, concretely relates to a push -and -pull spliced blackboard of extensible area, the utility model provides a push -and -pull spliced blackboard of extensible area, including fixed frame and movable frame, the inside of fixed frame is equipped with at least two blackboard plate bodies of staggered arrangement, and blackboard plate body is connected with the inside slide of fixed frame, movable frame is slidably arranged in the front of fixed frame, and the inside of movable frame is equipped with the sub -blackboard, the upper and lower sides of fixed frame are symmetrically equipped with the guide slide that is connected with movable frame sliding, the four corners of movable frame are rotationally connected with pulley assembly at guide slide, and the both ends of guide slide are equipped with the release that can let pulley assembly pass.

Description

Technical Field

[0001] This utility model relates to the field of teaching equipment technology, specifically to a push-pull modular blackboard with expandable area. Background Technology

[0002] Sliding blackboards are commonly used writing tools in modern teaching and meetings. Through the sliding structure, the display area of ​​the blackboard can be adjusted to adapt to different teaching or meeting needs. Compared with fixed blackboards, sliding blackboards can be folded or retracted to reduce space occupation. In addition, double-sided or multi-board designs can store smart blackboards and other similar devices to meet more information display needs.

[0003] However, existing ordinary sliding blackboards only use a single-layer sliding structure, and their overall area is the same as the original blackboard when unfolded, which cannot expand the area; secondly, some sliding blackboards use a single-sided design, which cannot make full use of the blackboard space and affects teaching efficiency. Utility Model Content

[0004] This invention provides a push-pull modular blackboard with expandable area. Through an optimized sliding structure and double-sided blackboard design, the writing area can be flexibly adjusted, improving the user experience and teaching efficiency.

[0005] The present invention provides a push-pull modular blackboard with expandable area, comprising a fixed frame and a movable frame; the fixed frame has at least two blackboard panels arranged in a staggered manner, and the blackboard panels are slidably connected to the inner side of the fixed frame; the movable frame is slidably disposed in front of the fixed frame, and a sub-blackboard is provided inside the movable frame; the upper and lower sides of the fixed frame are symmetrically provided with guide grooves that are slidably connected to the movable frame, and the four corners of the movable frame are rotatably connected to pulley assemblies at the guide grooves, and the two ends of the guide grooves are provided with release ports that allow the pulley assemblies to pass through.

[0006] As a preferred technical solution of this utility model, the sub-blackboard is a double-sided blackboard that can be written on both sides.

[0007] As a preferred technical solution of this utility model, the pulley assembly consists of a bracket and a guide wheel. The bracket is T-shaped, with its top end located in the guide groove and matching the shape of the guide groove. The guide wheel is located at both ends of the bracket and its rotation direction matches the direction of the guide groove.

[0008] As a preferred embodiment of this utility model, the end of the bracket protrudes from the fixed frame and is rotatably connected to the middle of the movable frame.

[0009] As a preferred technical solution of this utility model, the guide groove has the same length as the inside of the fixed frame, and both ends of the guide groove are provided with shock-absorbing pads.

[0010] As a preferred embodiment of this utility model, the fixed frame is provided with magnetic plates at both ends of its front side, and the movable frame is provided with magnetic strips corresponding to the magnetic plates at its front edge.

[0011] As a preferred technical solution of this utility model, the length of the release port from the edge of the guide groove is equal to the width of the movable frame, so that when the pulley assembly at one end of the movable frame abuts the inner edge of the guide groove, the pulley assembly at the other end can pass through the release port by rotation.

[0012] As a preferred technical solution of this utility model, the blackboard panels arranged in an alternating pattern are slidably connected to the inner side of the fixed frame via a sliding track.

[0013] The advantages of this utility model compared with the prior art are as follows:

[0014] This push-pull modular blackboard connects to a movable frame by sliding it to the outside of a fixed frame. The movable frame features a double-sided sub-blackboard design, allowing it to flip and unfold at the edges as it moves. This enables it to be combined with the blackboard body inside the fixed frame to form a larger blackboard, significantly increasing the usable area of ​​the blackboard and adapting to different teaching needs. Attached Figure Description

[0015] Figure 1 This is a structural diagram of a push-pull splicing blackboard with expandable area according to this utility model.

[0016] Figure 2 This is a structural diagram of the end of the guide groove of a push-pull splicing blackboard with expandable area according to the present invention.

[0017] Figure 3 This utility model describes the movable frame of an expandable sliding and splicing blackboard that can change states. Figure 1 .

[0018] Figure 4 This utility model describes the movable frame of an expandable sliding and splicing blackboard that can change states. Figure 2 .

[0019] As shown in the figure:

[0020] 1. Fixed frame; 2. Movable frame; 3. Blackboard body; 4. Sub-blackboard; 5. Guide slide; 6. Pulley assembly; 7. Release port; 8. Bracket; 9. Guide wheel; 10. Shock-absorbing pad; 11. Magnetic plate; 12. Magnetic strip; 13. Sliding track. Detailed Implementation

[0021] 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.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Example 1:

[0024] As per the instruction manual Figure 1-4 As shown, an expandable sliding blackboard includes a fixed frame 1 and a movable frame 2. The fixed frame 1 has at least two blackboard panels 3 arranged in a staggered manner, and the blackboard panels 3 are slidably connected to the inner side of the fixed frame 1 via a sliding rail 13.

[0025] In this utility model, the movable frame 2 is slidably disposed in front of the fixed frame 1, and the movable frame 2 is provided with a sub-blackboard 4. The sub-blackboard 4 is a double-sided blackboard that can be written on both sides. The fixed frame 1 is provided with magnetic plates 11 at both ends of the front side, and the movable frame 2 is provided with magnetic strips 12 corresponding to the magnetic plates 11 at the edge of the front side.

[0026] In this utility model, the fixed frame 1 is symmetrically provided with guide grooves 5 on the upper and lower sides, which are slidably connected to the movable frame 2. The four corners of the movable frame 2 are rotatably connected to the guide grooves 5. The pulley assembly 6 consists of a bracket 8 and a guide wheel 9. The bracket 8 has a T-shaped structure, with its top end located inside the guide groove 5 and matching the shape inside the guide groove 5. The guide wheel 9 is located at the middle two ends of the bracket 8, and its rotation direction matches the direction of the guide groove 5. The end of the bracket 8 protrudes from the fixed frame 1 and is rotatably connected to the middle of the movable frame 2. The guide groove 5 has the same length as the inside of the fixed frame 1, and both ends of the guide groove 5 are provided with shock-absorbing pads 10, which can reduce the impact of sliding to one side, ensure the stability of the blackboard, and increase the service life of the pulley assembly 6.

[0027] In this utility model, the guide groove 5 is provided with release ports 7 at both ends, which allow the pulley assembly 6 to pass through. The length of the release port 7 from the edge of the guide groove 5 is equal to the width of the movable frame 2, so that when the pulley assembly 6 at one end of the movable frame 2 abuts against the inner edge of the guide groove 5, the pulley assembly 6 at the other end can pass through the release port 7 by rotation.

[0028] In a specific implementation of this invention, the movable frame 2 slides within the guide groove 5 via the pulley assembly 6, thereby expanding the blackboard area and enabling flexible auxiliary writing during use. Furthermore, the movable frame 2 can be flipped at the edge of the guide groove 5 via the pulley assembly 6, allowing the magnetic strip 12 at the front edge of the movable frame 2 to adhere and limit the magnetic plates 11 at both ends of the front of the fixed frame 1, thus expanding the area of ​​the spliced ​​blackboard board 3. The shock-absorbing pads 10 provided at both ends of the guide groove 5 can reduce the impact of sliding to one side, ensuring the stability of the blackboard and increasing the service life of the pulley assembly 6.

[0029] The present invention and its embodiments have been described above. This description is not restrictive, and the specific embodiments shown are only one of the embodiments of the present invention. The actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. A sliding and modular blackboard with expandable area, characterized in that: It includes a fixed frame (1) and a movable frame (2); The fixed frame (1) has at least two blackboard boards (3) arranged in a staggered manner, and the blackboard boards (3) are slidably connected to the inner side of the fixed frame (1). The movable frame (2) is slidably disposed in front of the fixed frame (1), and a sub-blackboard (4) is provided inside the movable frame (2); The fixed frame (1) is symmetrically provided with guide grooves (5) that are slidably connected to the movable frame (2) on the upper and lower sides. The four corners of the movable frame (2) are rotatably connected with pulley assemblies (6) at the guide grooves (5). The two ends of the guide grooves (5) are provided with release ports (7) that allow the pulley assemblies (6) to pass through.

2. The expandable area sliding and splicing blackboard according to claim 1, characterized in that: The sub-blackboard (4) is a double-sided blackboard that can be written on both sides.

3. The expandable area sliding and splicing blackboard according to claim 1, characterized in that: The pulley assembly (6) consists of a bracket (8) and a guide wheel (9). The bracket (8) is a T-shaped structure with its top end located in the guide groove (5) and matching the shape of the guide groove (5). The guide wheel (9) is located at both ends of the middle of the bracket (8) and its rotation direction matches the direction of the guide groove (5).

4. The expandable area sliding and splicing blackboard according to claim 3, characterized in that: The end of the bracket (8) protrudes from the fixed frame (1) and is rotatably connected to the middle of the movable frame (2).

5. The expandable area sliding and splicing blackboard according to claim 1, characterized in that: The guide groove (5) has the same length as the inside of the fixed frame (1), and both ends of the guide groove (5) are provided with shock-absorbing pads (10).

6. The expandable area sliding and splicing blackboard according to claim 1, characterized in that: The fixed frame (1) has magnetic plates (11) at both ends of its front side, and the movable frame (2) has magnetic strips (12) at the edge of its front side that correspond to the magnetic plates (11).

7. The expandable area sliding and splicing blackboard according to claim 1, characterized in that: The length of the release port (7) from the edge of the guide groove (5) is equal to the width of the movable frame (2), so that when the pulley assembly (6) at one end of the movable frame (2) abuts against the inner edge of the guide groove (5), the pulley assembly (6) at the other end can pass through the release port (7) by rotation.

8. The expandable area sliding and splicing blackboard according to claim 1, characterized in that: The blackboard panels (3) arranged in an alternating pattern are slidably connected to the inner side of the fixed frame (1) via a sliding track (13).

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