Blackboard wiping mechanism

Abstract

The utility model provides a blackboard wiping mechanism which comprises a blackboard piece and wiping assemblies installed on the two sides of the blackboard piece, the blackboard piece comprises a frame installed on a wall, a fixed plate and a movable plate, the fixed plate and the movable plate are symmetrically arranged on the two sides of the frame, and the movable plate is installed in a guide groove corresponding to the frame in a sliding mode; the wiping assembly comprises a first elastic pressing sliding base, a second elastic pressing sliding base and two sets of wiping brush rollers installed between the first elastic pressing sliding base and the second elastic pressing sliding base in parallel, and the wiping brush rollers are driven by the first elastic pressing sliding base and the second elastic pressing sliding base. A first elastic pressing sliding base and a second elastic pressing sliding base drive wiping brush rollers to elastically abut against the surface of a moving plate, when a person slides on the moving plate, a rack plate at the bottom of the moving plate can drive a driven gear to rotate, the two sets of wiping brush rollers synchronously rotate through a synchronous gear, the surface of the moving plate is wiped, and the wiping effect is improved. The dustproof cover limits the dissipation of dust, and the dust is collected and filtered through the filtering piece.

Description

Technical Field

[0001] This utility model relates to the field of teaching equipment technology, specifically a blackboard erasing mechanism. Background Technology

[0002] Blackboards are commonly used teaching tools. To facilitate multimedia teaching, existing blackboards are generally sliding structures, with a display screen installed on the wall in the middle of the blackboard and covered by the sliding blackboard, allowing teachers to write on it. However, teachers often have to wipe the blackboard during use, which is not only time-consuming and laborious but also easily generates dust. Utility Model Content

[0003] The technical problem solved by this invention is to provide a mechanism that synchronously wipes as the blackboard moves, thereby solving the problems mentioned in the background art.

[0004] The technical problem solved by this utility model is achieved by the following technical solution: a blackboard wiping mechanism, including a blackboard component and wiping components installed on both sides of the blackboard component. The blackboard component includes a frame installed on the wall and fixed plates and movable plates symmetrically arranged on both sides of the frame. The movable plates are slidably installed in the corresponding guide grooves of the frame.

[0005] The wiping assembly includes a first spring-loaded slide and a second spring-loaded slide, and two sets of wiping brush rollers installed side by side between the first spring-loaded slide and the second spring-loaded slide. The wiping brush rollers are driven by the first spring-loaded slide and the second spring-loaded slide and elastically abut against the surface of the moving plate to wipe the moving plate.

[0006] The outer ends of the first and second spring-loaded slides are also equipped with dust covers to prevent dust from escaping.

[0007] As a further embodiment of this utility model:

[0008] The wiping brush roller is provided with shafts on both sides, and the shafts are rotatably connected by inserting them into the bearings corresponding to the first and second spring-loaded slides. The shaft of the wiping brush roller located at the outer end of the first spring-loaded slide is fixedly installed with a synchronous gear. The synchronous gears on the two sets of wiping brush rollers mesh with each other to drive the two sets of wiping brush rollers to rotate synchronously.

[0009] As a further embodiment of this utility model:

[0010] A driven gear is fixedly installed on the shaft of the wiping brush roller on one side of the second spring-loaded slide. A rack plate is provided at the lower end of the moving plate corresponding to the driven gear. The rack plate is connected to the driven gear in a transmission manner so that when the moving plate is pushed to slide, the wiping brush roller is driven to rotate synchronously.

[0011] As a further embodiment of this utility model:

[0012] The lower end of the second spring-loaded slide is equipped with a dust-collecting filter element, which includes an air box and a filter cartridge detachably installed on one side of the lower end of the air box to collect dust and exhaust air. The air box has an air inlet chamber communicating with the dust cover on one side and an exhaust chamber communicating with the filter cartridge on the other side. Two sets of air guide chambers are arranged side by side between the air inlet chamber and the exhaust chamber. Fan blades are installed in the air guide chambers and are mounted on the shaft at the lower end of the wiping brush roller. A one-way valve plate is rotatably installed at the air inlet of the air guide chamber near the air inlet chamber, so that the air inlet chamber can unidirectionally introduce air into the air guide chamber.

[0013] As a further embodiment of this utility model:

[0014] The lower end of the air box has a through hole corresponding to the filter cylinder. The air box has a retaining plate on both sides of the through hole. The retaining plate has a retaining groove on the side facing the through hole. The filter cylinder has a rotating plate on both sides. The rotating plate rotates and is engaged in the retaining groove to fix the filter cylinder.

[0015] As a further embodiment of this utility model:

[0016] The first and second spring-loaded slides have the same structure and are arranged symmetrically.

[0017] As a further embodiment of this utility model:

[0018] The second spring-loaded seat includes a base plate fixedly installed on the frame and slide rails on both sides of the base plate, and a spring plate slidably installed on the slide rails. Slider blocks are fixedly installed on both sides of the lower end of the spring plate corresponding to the slide rails. A limiting plate is provided at the outer end of the slide rails. A spring is installed between the two slide rails on the limiting plate. The side of the spring away from the limiting plate abuts against the spring plate to push the spring plate to move, so that the two sets of wiping brush rollers abut against the moving plate.

[0019] Compared with existing technologies, the advantages of this invention are as follows: the first and second spring-loaded sliding seats drive the wiping brush rollers to elastically abut against the surface of the moving plate. When a person slides on the moving plate, the rack plate at the bottom of the moving plate drives the driven gear to rotate, and through the synchronous gear, the two sets of wiping brush rollers rotate synchronously to wipe the surface of the moving plate, improving the wiping effect. The dust cover restricts dust escape and collects and filters the dust through the filter element. This device utilizes the rack plate and driven gear transmission to enable the person to simultaneously wipe the moving plate while pushing it, making operation simple and convenient, and requiring no electricity. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the wiping assembly installation structure of this utility model;

[0022] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0023] Figure 4 for Figure 2 Enlarged structural diagram at point B;

[0024] Figure 5 This is a partial cross-sectional view of the present invention.

[0025] Figure 6 for Figure 5 Enlarged structural diagram at point C;

[0026] Figure 7 This is a schematic diagram of the internal structure of the air box of this utility model;

[0027] The diagram shows the following components: 1. Frame; 2. Wiping assembly; 3. Air box; 4. Base plate; 11. Fixed plate; 12. Moving plate; 21. First spring-loaded slide; 22. Second spring-loaded slide; 23. Wiping brush roller; 24. Dust cover; 25. Shaft; 26. Synchronous gear; 27. Driven gear; 28. Rack plate; 31. Filter cartridge; 32. Air inlet chamber; 33. Air outlet chamber; 34. Air guide chamber; 35. Fan blade; 36. One-way valve plate; 37. Clamping plate; 38. Rotating plate; 41. Slide rail; 42. Spring plate; 43. Slider; 44. Limiting plate; 45. Spring. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.

[0029] like Figures 1-7 As shown,

[0030] This embodiment provides a blackboard wiping mechanism, including a blackboard component and wiping components 2 installed on both sides of the blackboard component. The blackboard component includes a frame 1 installed on a wall and a fixed plate 11 and a movable plate 12 symmetrically arranged on both sides of the frame 1. The movable plate 12 is slidably installed in the corresponding guide groove of the frame 1.

[0031] The wiping assembly 2 includes a first spring-loaded slide 21 and a second spring-loaded slide 22, and two sets of wiping brush rollers 23 installed side by side between the first spring-loaded slide 21 and the second spring-loaded slide 22. The wiping brush rollers 23 are driven by the first spring-loaded slide 21 and the second spring-loaded slide 22 and elastically abut against the surface of the moving plate 12 to wipe the moving plate 12.

[0032] The outer ends of the first spring-loaded slide 21 and the second spring-loaded slide 22 are also equipped with dust covers 24 to prevent dust from escaping.

[0033] In this embodiment, the two sides of the wiping brush roller 23 are respectively provided with shafts 25, and the shafts 25 are inserted into the bearings corresponding to the first spring-loaded slide 21 and the second spring-loaded slide 22 for rotatable connection. The shaft 25 of the wiping brush roller 23 located at the outer end of the first spring-loaded slide 21 is fixedly installed with a synchronous gear 26. The synchronous gears 26 on the two sets of wiping brush rollers 23 mesh with each other to drive the two sets of wiping brush rollers 23 to rotate synchronously.

[0034] A driven gear 27 is fixedly installed on the shaft 25 of the wiping brush roller 23 on one side of the second spring-loaded slide block 22. A rack plate 28 is provided at the lower end of the moving plate 12 corresponding to the driven gear 27. The rack plate 28 is connected to the driven gear 27 in a transmission manner so that when the moving plate 12 is pushed to slide, the wiping brush roller 23 is driven to rotate synchronously, thereby improving the wiping effect.

[0035] In this embodiment, a dust-collecting filter is installed at the lower end of the second spring-loaded slide 22. The filter includes an air box 3 and a filter cartridge 31 detachably installed on one side of the lower end of the air box 3, so as to collect dust and exhaust air using the filter cartridge 31. An air inlet chamber 32 communicating with the dust cover 24 is provided on one side of the air box 3, and an exhaust chamber 33 communicating with the filter cartridge 31 is provided on the other side. Two sets of air guide chambers 34 are arranged side by side between the air inlet chamber 32 and the exhaust chamber. A fan blade 35 is installed in the air guide chamber 34. The fan blade 35 is installed on the shaft 25 at the lower end of the wiping brush roller 23, so as to use the fan blade 35 to draw the dust in the dust cover 24 into the exhaust chamber 33 and collect it through the filter cartridge 31. A one-way valve plate 36 is rotatably installed at the air inlet of the air guide chamber 34 near the air inlet chamber 32, so that the air inlet chamber 32 guides the air inlet chamber 34 in one direction.

[0036] The lower end of the air box 3 is provided with a through hole corresponding to the filter cylinder 31. The air box 3 is provided with a retaining plate 37 on both sides of the through hole. The retaining plate 37 is provided with a retaining groove on the side facing the through hole. The filter cylinder 31 is provided with a rotating plate 38 on both sides. The rotating plate 38 is rotated and locked in the retaining groove to fix the filter cylinder 31.

[0037] In this embodiment, the first spring-loaded slide 21 and the second spring-loaded slide 22 have the same structure and are arranged symmetrically.

[0038] The second spring-loaded seat includes a base plate 4 fixedly installed on the frame 1 and slide rails 41 arranged on both sides of the base plate 4, and spring plates 42 slidably installed on the slide rails 41. Slider blocks 43 are fixedly installed on both sides of the lower end of the spring plate 42 corresponding to the slide rails 41. A limiting plate 44 is provided at the outer end of the slide rails 41. A spring 45 is installed between the two slide rails 41 and the side of the limiting plate 44 away from the limiting plate 44 abuts against the spring plate 42 to push the spring plate 42 to move, so that the two sets of wiping brush rollers 23 abut against the moving plate 12.

[0039] The working principle of this utility model is as follows: Wiping components 2 are provided on both sides of the blackboard component. The first spring-loaded slide 21 and the second spring-loaded slide 22 drive the wiping brush rollers 23 to elastically abut against the surface of the moving plate 12. When a person slides on the moving plate 12, the rack plate 28 at the bottom of the moving plate 12 drives the driven gear 27 to rotate. Through the synchronous gear 26, the two sets of wiping brush rollers 23 rotate synchronously to wipe the surface of the moving plate 12, improving the wiping effect. The dust cover 24 restricts dust escape and collects and filters the dust through a filter element.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents. It should be noted that, in this document, the use of relational terms such as "first" and "second" is merely used to distinguish one entity or operation from another, and does not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In the absence of further restrictions, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A blackboard erasing mechanism, comprising a blackboard component and erasing assemblies mounted on both sides of the blackboard component, wherein the blackboard component includes a frame mounted on a wall and fixed plates and movable plates symmetrically arranged on both sides of the frame, the movable plates being slidably mounted in corresponding guide grooves of the frame, characterized in that: The wiping assembly includes a first spring-loaded slide and a second spring-loaded slide, and two sets of wiping brush rollers installed side by side between the first spring-loaded slide and the second spring-loaded slide. The wiping brush rollers are driven by the first spring-loaded slide and the second spring-loaded slide and elastically abut against the surface of the moving plate to wipe the moving plate. The outer ends of the first and second spring-loaded slides are also equipped with dust covers to prevent dust from escaping.

2. The blackboard erasing mechanism according to claim 1, characterized in that: The wiping brush roller is provided with shafts on both sides, and the shafts are rotatably connected by inserting them into the bearings corresponding to the first and second spring-loaded slides. The shaft of the wiping brush roller located at the outer end of the first spring-loaded slide is fixedly installed with a synchronous gear. The synchronous gears on the two sets of wiping brush rollers mesh with each other to drive the two sets of wiping brush rollers to rotate synchronously.

3. The blackboard erasing mechanism according to claim 2, characterized in that: A driven gear is fixedly installed on the shaft of the wiping brush roller on one side of the second spring-loaded slide block, and a rack plate is provided at the lower end of the moving plate corresponding to the driven gear. The rack plate is connected to the driven gear in a transmission manner.

4. A blackboard erasing mechanism according to claim 3, characterized in that: The lower end of the second spring-loaded slide is equipped with a dust-collecting filter element, which includes an air box and a filter cartridge detachably installed on one side of the lower end of the air box. The air box has an air inlet chamber communicating with the dust cover on one side and an air outlet chamber communicating with the filter cartridge on the other side. Two sets of air guide chambers are arranged side by side between the air inlet chamber and the air outlet chamber. Fan blades are installed in the air guide chambers and are mounted on the shaft at the lower end of the wiping brush roller. A one-way valve plate is rotatably installed at the air inlet of the air guide chamber near the air inlet chamber, so that the air inlet chamber can unidirectionally introduce air into the air guide chamber.

5. A blackboard erasing mechanism according to claim 4, characterized in that: The lower end of the air box has a through hole corresponding to the filter cylinder. The air box has a retaining plate on both sides of the through hole. The retaining plate has a retaining groove on the side facing the through hole. The filter cylinder has a rotating plate on both sides. The rotating plate rotates and is engaged in the retaining groove to fix the filter cylinder.

6. A blackboard erasing mechanism according to claim 2, characterized in that: The first and second spring-loaded slides have the same structure and are arranged symmetrically.

7. A blackboard erasing mechanism according to claim 6, characterized in that: The second spring-loaded slide includes a base plate fixedly installed on the frame and slide rails on both sides of the base plate, and a spring plate slidably installed on the slide rails. Slider blocks are fixedly installed on both sides of the lower end of the spring plate corresponding to the slide rails. A limiting plate is provided at the outer end of the slide rails. A spring is installed between the two slide rails on the limiting plate. The side of the spring away from the limiting plate abuts against the spring plate to push the spring plate to move, so that the two sets of wiping brush rollers abut against the moving plate.

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