A dust-collecting blackboard eraser

Abstract

This utility model discloses a dust-collecting blackboard eraser, relating to the technical field of blackboard eraser dust removal. It includes a guide rail, with both ends mounted on a wall via mounting brackets; a sliding plate slidably mounted on the guide rail; a connecting tube passing through the sliding plate and fixedly connected to it; a vacuum cleaner connected to the exterior wall of the classroom via a mounting bracket, the vacuum cleaner's air inlet connected to one end of the connecting tube via a first flexible hose; a blackboard eraser with an eraser body on the side facing the blackboard, containing a cavity, and a connecting tube on the side wall communicating with the cavity; several air inlets surrounding the eraser body on the side facing the blackboard; a second flexible hose, one end connected to the connecting tube and the other end connected to the connecting tube; and a controller mounted on the wall, connected to the vacuum cleaner via a second wire. This utility model has advantages such as ease of use and reduced inhalation of dust.

Description

Technical Field

[0001] This utility model relates to the technical field of blackboard eraser dust removal, and in particular to a dust-collecting blackboard eraser. Background Technology

[0002] In the course of teaching, it is necessary to write on the blackboard, mainly using chalk. When erasing the blackboard, a blackboard eraser is usually used to erase the notes. This process generates a lot of dust, which can be inhaled by the human body and affect human health and safety. Therefore, this application proposes a dust-collecting blackboard eraser. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a dust-collecting blackboard eraser to solve the problem in the prior art described in the background that a large amount of dust is generated during the use of the blackboard eraser and is inhaled by the human body.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a dust-collecting blackboard eraser, comprising... The guide rail is mounted on the wall at both ends via mounting brackets; The skateboard slides on the guide rail. Connecting tube, which passes through the skateboard and is fixedly connected to it; A vacuum cleaner is attached to the exterior wall of the classroom via a mounting bracket. The air intake of the vacuum cleaner is connected to one end of a connecting pipe via a first flexible hose. A blackboard eraser has an erasing body on the side facing the blackboard, a cavity inside the eraser, a connecting pipe on the side wall of the eraser communicating with the cavity, and several air inlets surrounding the erasing body on the side of the eraser facing the blackboard. The second hose has one end connected to the connecting pipe and the other end connected to the connecting pipe; The controller is mounted on the wall and is connected to the vacuum cleaner via a second wire.

[0005] Preferably, a positioning tube is provided on the wall, and the first flexible tube passes through the positioning tube.

[0006] Preferably, the guide rail is located at the top of the blackboard.

[0007] Preferably, the blackboard eraser has a positioning groove at the center of the side facing the wall, and a through hole on the eraser body corresponding to the positioning groove. A switch button is provided in the positioning groove, a pressure plate is provided on the switch button, a spring is provided on the pressure plate, and a slider is provided on the spring. The slider slides in contact with the inner wall of the positioning groove. A movable ball is embedded in the side of the slider facing the blackboard and protrudes from the surface of the eraser body. A remote control is also provided on the outer wall of the blackboard eraser. The remote control is connected to the switch button through a first wire, and the controller has an infrared receiver for receiving remote control signals.

[0008] The beneficial effects of adopting the above technical solutions are: This application connects a vacuum cleaner to a blackboard eraser, allowing the eraser's internal cavity and air inlet to suck up air from all sides. When dust is generated during the erasure process, the air inlet can suck it up, preventing inhalation. Furthermore, for easier dust collection, the application uses the pressure of a movable ball against the blackboard to activate the remote control's power button. This allows the infrared transmitter on the remote control to emit a signal, which is then received by the infrared receiver on the controller, thus starting the vacuum cleaner and increasing automation. Attached Figure Description

[0009] Figure 1 This is a front view of a dust-collecting blackboard eraser according to this utility model.

[0010] Figure 2 This is a schematic diagram of the blackboard eraser of this utility model.

[0011] Figure 3 This is a rear view of the blackboard eraser of this utility model.

[0012] Figure 4 This is a cross-sectional view of the eraser of this utility model.

[0013] The components include: wall 10, blackboard 20, blackboard eraser 30, cavity 31, air inlet 32, connecting pipe 33, positioning groove 34, eraser body 40, through hole 41, switch button 50, first wire 51, remote control 52, pressing plate 53, spring 54, slider 55, movable ball 56, vacuum cleaner 60, first hose 61, connecting pipe 62, second hose 63, positioning tube 64, mounting bracket 65, sliding plate 70, guide rail 71, mounting base 72, controller 80, and second wire 81. Detailed Implementation

[0014] The embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0015] like Figure 1-4 In this first embodiment, a dust-collecting blackboard eraser includes... The guide rail 71 is mounted on the wall 10 at both ends via mounting bases 72; The skateboard 70 is slidably mounted on the guide rail 71; Connecting pipe 62 passes through skateboard 70 and is fixedly connected to skateboard 70; The vacuum cleaner 60 is connected to the outer wall of the classroom via a mounting bracket 65. The air intake end of the vacuum cleaner 60 is connected to one end of the connecting pipe 62 via a first flexible hose 61. The blackboard eraser 30 has an erasing body 40 on the side facing the blackboard 20. The blackboard eraser 30 has a cavity 31 inside. The side wall of the blackboard eraser 30 has a connecting pipe 33 that communicates with the cavity 31. The side of the blackboard eraser 30 facing the blackboard 20 has several air inlets 32 surrounding the erasing body 40. The second flexible hose 63 is connected at one end to the connecting pipe 62 and at the other end to the connecting pipe 33; The controller 52 is mounted on the wall 10 and is connected to the vacuum cleaner 60 via the second wire 81.

[0016] This embodiment is implemented as follows: In use, the vacuum cleaner 60 is first turned on via the controller 80, and then the blackboard eraser 30 is used to wipe the blackboard 20. During the wiping process, dust will be raised around the eraser body 40. At this time, the suction port 32 will suck the dust into the cavity 31, and then suck it into the vacuum cleaner 60 through the second hose 63, connecting pipe 62, and first hose 61. This achieves dust removal. At the same time, when the blackboard eraser 30 moves, it will drive the second hose 63 and connecting pipe 62 to move, which will also drive the slide plate 70 to move on the guide rail 71. In addition, the first hose 61 and the second hose 63 in this application have spiral parts, which facilitate movement and limit the height of the blackboard eraser 30, making it easy to operate.

[0017] Please see Figure 1 A positioning tube 64 is installed on the wall 10, and a first flexible tube 61 passes through the positioning tube 64.

[0018] This application uses a positioning tube 64 to position a portion of the first hose 61, thus preventing the first hose 61 from becoming unstable.

[0019] Please see Figure 1 The guide rail 71 is located at the top of the blackboard 10.

[0020] By placing the guide rail at the top of the blackboard 10, the blackboard eraser 30 can be suspended on the front of the blackboard 10, making it easy to operate without having to bend over to pick up the blackboard eraser 30.

[0021] Please see Figure 1 , 23, 4. The blackboard eraser 30 has a positioning groove 34 at the center of the side facing the wall 10. The eraser body 40 has a through hole 41 at the position corresponding to the positioning groove 34. A switch button 50 is provided in the positioning groove 34. A pressure plate 53 is provided on the switch button 50. A spring 54 is provided on the pressure plate 53. A slider 55 is provided on the spring 54. The slider 55 slides in contact with the inner wall of the positioning groove 34. A movable ball 56 is embedded in the side of the slider 55 facing the blackboard 20. The movable ball 56 protrudes from the surface of the eraser body 40. A remote control 52 is also provided on the outer wall of the blackboard eraser 30. The remote control 52 is connected to the switch button 50 through a first wire 51. The controller 80 has an infrared receiver to receive the signal from the remote control 52.

[0022] During the use of the blackboard eraser 30, the movable ball 56 is pressed, which drives the sliding plate 55 to move in the positioning groove 34 toward the switch button 50. At this time, the spring 54 is compressed and undergoes a certain elastic deformation, which also pushes the pressure plate 53 to move. The pressure plate 53 then presses the switch button 50, which activates the remote control 52. The infrared transmitter on the remote control 52 then emits an infrared signal to the controller 80. The infrared receiver in the controller 80 can receive the signal, and after receiving the signal, the controller starts the vacuum cleaner 60.

[0023] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A dust-collecting blackboard eraser, characterized in that, include The guide rail is mounted on the wall at both ends via mounting brackets; The skateboard slides on the guide rail. Connecting tube, which passes through the skateboard and is fixedly connected to it; A vacuum cleaner is attached to the exterior wall of the classroom via a mounting bracket. The air intake of the vacuum cleaner is connected to one end of a connecting pipe via a first flexible hose. A blackboard eraser has an erasing body on the side facing the blackboard, a cavity inside the eraser, a connecting pipe on the side wall of the eraser communicating with the cavity, and several air inlets surrounding the erasing body on the side of the eraser facing the blackboard. The second hose has one end connected to the connecting pipe and the other end connected to the connecting pipe; The controller is mounted on the wall and is connected to the vacuum cleaner via a second wire.

2. The dust-collecting blackboard eraser according to claim 1, characterized in that, A positioning tube is installed on the wall, and the first flexible tube passes through the positioning tube.

3. A dust-collecting blackboard eraser according to claim 1, characterized in that, The guide rail is located at the top of the blackboard.

4. A dust-collecting blackboard eraser according to claim 1, characterized in that, The blackboard eraser has a positioning groove at the center of the side facing the wall. The eraser body has a through hole at the corresponding position of the positioning groove. A switch button is installed in the positioning groove. A pressure plate is installed on the switch button. A spring is installed on the pressure plate. A slider is installed on the spring. The slider slides in contact with the inner wall of the positioning groove. A movable ball is embedded in the side of the slider facing the blackboard. The movable ball protrudes from the surface of the eraser body. A remote control is also installed on the outer wall of the blackboard eraser. The remote control is connected to the switch button through a first wire. The controller has an infrared receiver to receive the remote control signal.

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