Chalkboard eraser cleaning equipment and cleaning method

Abstract

A chalkboard eraser cleaning device and cleaning method, the chalkboard eraser cleaning device includes a housing (1), a cleaning case (2) and a rinsing mechanism, the housing (1) has a storage chamber (11) and is provided with an opening (12), the cleaning case (2) is suitable for placing a chalkboard eraser (3), the cleaning case (2) is located within the storage chamber (11) and has a placement opening (21), and the cleaning case (2) is provided with a water supply port (22) and a water outlet port (23), respectively, the rinsing mechanism includes a pipe having one end connected to the water supply port (22) of the cleaning case (2) and the other end connected to a water source, and a first power member (4) provided on the inner wall surface or outer wall surface of the housing (1), connected to the piping, and used to provide power to the water in the piping, wherein when the chalkboard eraser (3) in the cleaning case (2) is rinsed away, the storage chamber (11) receives the dirty water left after rinsing. This device realizes automatic cleaning of the blackboard eraser, relieves the user from the task of manual cleaning, and does not require the user's hands to come into contact with dirty water containing dissolved dust during cleaning, thereby avoiding damage to physical health.

Description

[Technical field]

[0001] (CROSS REFERENCE TO RELATED APPLICATIONS) This patent application claims priority to Chinese Patent Application Nos. 202111164340.4 and CN202111160749.9, filed on September 30, 2021. The disclosures of the prior applications are incorporated herein by reference in their entireties.

[0002] FIELD OF THE DISCLOSURE This application is in the field of cleaning equipment technology, and more particularly relates to chalkboard eraser cleaning equipment and methods. [Background technology]

[0003] Currently, most schools use chalkboard writing for lessons. During lessons, teachers write on the chalkboard with chalk. The writing can be erased with a chalkboard eraser. For example, before the next lesson starts, the writing from the previous lesson is erased with a chalkboard eraser. When erasing the writing with a chalkboard eraser, dust is generated, and if the teacher and the students in the front row inhale the dust, it will have a negative impact on their health. In order to solve the above problem, in the prior art, a container for holding water is installed in the classroom, and when it is necessary to erase the writing on the chalkboard, the urethane foam part of the chalkboard eraser is washed and wetted in the container, and then the wet urethane foam is used to wipe the surface of the chalkboard.

[0004] The existing problems are as follows: In the process of cleaning the urethane foam, the user's hands need to touch the urethane foam, and will inevitably enter the dirty water containing dissolved dust, which is detrimental to the user's physical health. In addition, the method of manually cleaning the urethane foam by the user is inefficient, and the cleaning process takes up a lot of the user's time. Summary of the Invention [Problem to be solved by the invention]

[0005] The present application aims to provide a chalkboard eraser cleaning device and cleaning method, and to solve the problem in the prior art that users manually cleaning the chalkboard eraser is harmful to their physical health and the cleaning process takes up the users' time. [Means for solving the problem]

[0006] To achieve the above objectives, the present application adopts the following technical solutions:

[0007] A chalkboard eraser cleaning device is provided, the device comprising: A housing having a storage chamber, the housing having an opening communicating with the storage chamber on one side or a top surface of the housing; a cleaning case suitable for placing a chalkboard eraser, located within the storage chamber, and having a placement opening aligned with the opening, the cleaning case having a water inlet and a water outlet on two opposing side walls of the cleaning case; a flushing mechanism including a pipe having one end communicating with a water supply port of the cleaning case and the other end communicating with a water source, and a first power member provided on an inner wall surface or an outer wall surface of the housing, connected to the pipe, and used to provide power to the water in the pipe; Here, when the blackboard eraser in the cleaning case is washed away, the storage chamber receives the dirty water remaining after washing.

[0008] In one possible implementation, the piping is a hose, and the cleaning device for the chalkboard eraser comprises: a rotation mechanism located within the storage chamber, the rotation mechanism having a rotation drive end connected to an outer wall surface of the cleaning case, the rotation drive end being suitable for driving the cleaning case to rotate by a predetermined angle to bring the cleaning case into an initial state or an operating state; a pressing part that is movably installed in the storage chamber, the moving direction of which is perpendicular to the axial direction of the opening, has a pressing surface facing the cleaning case, and is connected to a second power member for driving the movement of the pressing part; When the cleaning case is in the initial state, the placement opening and the opening are aligned, and the blackboard eraser can be placed in the cleaning case; When the cleaning case is in the operating state, the placement opening and the pressing portion are aligned, and the pressing portion can press the blackboard eraser in the cleaning case.

[0009] In order to achieve the above object, the present application further provides a chalkboard eraser cleaning method, which can automatically clean a chalkboard eraser using the above chalkboard eraser cleaning device.

[0010] The method for cleaning a blackboard eraser comprises: A step of placing a chalkboard eraser in a cleaning case of a cleaning device, the cleaning device being provided with a rotating mechanism, a pressing mechanism and a cleaning mechanism, the pressing mechanism facing the cleaning mechanism and the rotating mechanism being connected to the cleaning case; The rotation mechanism drives the cleaning case to rotate to a cleaning position; The cleaning mechanism rinses the eraser, and the pressing mechanism presses the eraser; repeating the washing and pressing process until washing is complete; The rotation mechanism includes a step of driving the cleaning case to rotate to an initial position.

[0011] In one possible implementation, after the step of placing the eraser in a cleaning case of a cleaning device, the method of cleaning the eraser includes the steps of: The method further includes the step of determining whether the eraser is placed in the cleaning case.

[0012] In one possible implementation, a chalkboard eraser is placed in the cleaning case by the following method: The chalkboard eraser is placed in the cleaning case through the placement opening thereof so that the wiping surface of the chalkboard eraser is surrounded by the inner wall of the cleaning case and a gap exists between the wiping surface of the chalkboard eraser and the side wall of the cleaning case.

[0013] In one possible implementation, the step of the cleaning mechanism washing the eraser and the pressing mechanism pressing the eraser includes: The cleaning mechanism rinses the wiping surface of the chalkboard eraser within a predetermined time period; When rinsing is completed, the pressing mechanism presses the non-wiping surface of the eraser so that the wiping surface of the eraser presses the inner wall of the cleaning case to push out the water in the eraser.

[0014] In one possible implementation, the step of the cleaning mechanism washing the eraser and the pressing mechanism pressing the eraser includes: The cleaning mechanism includes a step of rinsing the wiping surface of the eraser while the pressing mechanism presses against the non-wiping surface of the eraser.

[0015] In some embodiments, after the cleaning mechanism stops rinsing, the pressing mechanism reciprocates and presses the non-wiping surface of the eraser multiple times.

[0016] In one possible implementation, the step of the cleaning mechanism scrubbing the wiping surface of the chalkboard eraser includes: The water flow sent out from the cleaning mechanism washes the wiping surface of the blackboard eraser from top to bottom, and the water flow includes a step of wrapping around the wiping surface of the blackboard eraser.

[0017] In some embodiments, the step of the pressing mechanism pressing the non-wiping surface of the eraser includes: The pressing mechanism includes a step of reciprocating and pressing the non-wiping surface of the chalkboard eraser multiple times.

[0018] In one possible implementation, the blackboard eraser cleaning method includes: Collecting wastewater generated during the cleaning process; The method further includes filtering the collected wastewater and delivering the filtered water to a cleaning mechanism. Effect of the Invention

[0019] In the chalk eraser cleaning device provided in the present application, when cleaning a chalk eraser, first the chalk eraser is passed through the opening of the housing and the placement opening of the cleaning case, and the chalk eraser is positioned inside the cleaning case. Then, a first power member provides power to the water in the pipe, causing the water to flow from the water inlet into the cleaning case, flow through the chalk eraser, and then flow out of the cleaning case from the water outlet. As the water flows, it can carry away chalk dust on the chalk eraser, thereby cleaning the chalk eraser. Finally, the wastewater generated by cleaning the chalk eraser flows into the storage chamber of the housing, thereby collecting the wastewater.

[0020] Compared with the prior art, the chalkboard eraser cleaning device provided in this application can realize automatic cleaning of the chalkboard eraser by combining a housing, a cleaning case and a washing mechanism, and does not require the user's hands to come into contact with dirty water containing dissolved chalk dust, thereby avoiding damage to the user's physical health. In addition, because it is automatic cleaning, the user does not need to take the time and effort, thereby solving the problem that the cleaning process takes up the user's time.

[0021] The method for cleaning the eraser provided in this application can realize automatic cleaning of the eraser compared to the prior art. It does not require the user's hands to come into contact with dirty water containing dissolved dust, and can avoid damage to physical health. In addition, automatic cleaning does not occupy the user's time, and can free the user from manual cleaning work.

[0022] After the eraser is placed in the cleaning case of the cleaning device, the rotating mechanism rotates the eraser to a cleaning position. Then, the water flow provided by the cleaning mechanism washes the eraser to remove dust on the eraser, and during the washing process, the pressing mechanism repeatedly presses the eraser, so that the eraser repeatedly absorbs water and then the water is pushed out, and the pushed-out water can carry away the dust on the eraser, ensuring that the eraser is thoroughly washed. After the washing is completed, the eraser rotates to an initial position, and the user can take the eraser out of the cleaning case in the initial position. [Brief description of the drawings]

[0023] [Figure 1] 1 is a schematic diagram of the structure of a blackboard eraser cleaning device provided in an embodiment of the present application; [Diagram 2] 1 is a schematic diagram of the internal structure of a blackboard eraser cleaning device provided in an embodiment of the present application. [Diagram 3] FIG. 3 is an enlarged schematic view of part A in FIG. 2. [Figure 4] 1 is a schematic diagram of a guide structure portion of a blackboard eraser cleaning device provided in an embodiment of the present application. [Diagram 5] 1 is a schematic cross-sectional view of a cleaning case of a blackboard eraser cleaning device provided in an embodiment of the present application. [Figure 6] 1 is a schematic cross-sectional view of a positioning structure of a blackboard eraser cleaning device provided in an embodiment of the present application. [Figure 7] 1 is a flowchart of a blackboard eraser cleaning method provided in an embodiment of the present application. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] In order to make the technical problem, technical solution and beneficial effects that the present application aims to solve clearer, the present application will be described in more detail below in conjunction with the drawings and examples. It should be understood that the specific examples described herein are only used to interpret the present application and do not limit the present application.

[0025] A chalkboard eraser cleaning device provided in the present application will be described with reference to Figs. 1, 2 and 5. The chalkboard eraser cleaning device includes a housing 1, a cleaning case 2 and a washing mechanism. The housing 1 has a storage chamber 11, and an opening 12 (in Fig. 1, the opening 12 is located on the front side of the housing 1) communicating with the storage chamber 11 is provided on one side or the top surface of the housing 1. The washing case 2 is suitable for placing a chalkboard eraser 3. The washing case 2 is located in the storage chamber 11 and has a placement opening 21 aligned with the opening 12 (the chalkboard eraser can be placed in the washing case 2 after passing through the opening 12 and the placement opening 21). A water supply port 22 and a water outlet 23 are provided on two opposing side walls of the washing case 2, respectively. The washing mechanism includes a pipe and a first power member 4, and one end of the pipe is connected to the water supply port 22 of the washing case 2 and the other end is connected to a water source. The first power member 4 is provided on the inner or outer wall surface of the housing 1, the first power member 4 is connected to a pipe, and the first power member 4 is used to provide power to the water in the pipe (i.e., to drive the water and make it flow). Here, when the blackboard eraser 3 in the cleaning case 2 is washed, the storage chamber 11 receives the dirty water left after washing.

[0026] In the above embodiment, when cleaning the chalkboard eraser 3, first the chalkboard eraser 3 is passed through the opening 12 of the housing 1 and the placement opening 21 of the cleaning case 2, and the chalkboard eraser 3 is positioned inside the cleaning case 2; then the first power member 4 provides power to the water in the piping, causing the water to flow from the water inlet 22 into the cleaning case 2, and after flowing through the chalkboard eraser 3, it flows out of the cleaning case 2 from the water outlet 23; as the water flows, it can carry away the chalk dust on the chalkboard eraser 3, thereby cleaning the chalkboard eraser 3; and finally, the wastewater generated by cleaning the chalkboard eraser 3 flows into the storage chamber 11 of the housing 1, thereby collecting the wastewater.

[0027] Compared with the prior art, the chalkboard eraser cleaning device provided in this application can realize automatic cleaning of the chalkboard eraser 3 by combining the housing 1, cleaning case 2 and washing mechanism, and does not require the user's hands to come into contact with dirty water containing dissolved chalk dust, thereby avoiding damage to the user's physical health. In addition, because it is automatic cleaning, the user does not need to take the time and effort, thereby solving the problem that the cleaning process takes up the user's time.

[0028] Also, as shown in Figures 1 and 2, two chalkboard erasers 3 can be arranged in correspondence with one housing 1. In this way, when one chalkboard eraser 3 is placed in the cleaning case 2 for cleaning, the other chalkboard eraser 3 is available for use. When a used chalkboard eraser 3 is placed in the cleaning case 2 for cleaning, the previously cleaned chalkboard eraser 3 becomes available for further use. In this way, a cleaned chalkboard eraser 3 is always available for the user to use, and the user does not need to waste time waiting for the cleaning of the chalkboard eraser 3 to be completed. Similarly, the number of chalkboard erasers 3 arranged may be two or more.

[0029] Furthermore, when the opening 12 is installed on one side of the housing 1 (as shown in FIG. 1), the housing 1 can be fitted into the wall of a classroom, exposing the opening 12 to the outside. In this case, the eraser 3 can be placed into the cleaning case 2 through the opening 12 to realize automatic cleaning. Fitting the housing 1 into the wall of a classroom can save space required to install the housing 1. The first power member 4 can be a water pump, which can provide power to the water in the piping, so that the water flow can constantly wash the eraser 3 in the cleaning case 2.

[0030] In one embodiment of the present application, the piping is a hose, and the cleaning device further includes a rotating mechanism 5, a pressing unit 6, and a second power member 7, as shown in Figures 2 and 4. The rotating mechanism 5 is located in the storage chamber 11, and has a rotating drive end connected to the outer wall surface of the cleaning case 2, and the rotating drive end is suitable for driving the cleaning case 2 to rotate at a predetermined angle. The pressing unit 6 is slidably installed in the storage chamber 11, and the sliding direction is perpendicular to the axial direction of the opening 12 (in Figure 1, the axial direction of the opening 12 is a direction perpendicular to the plate material in which the opening 12 is located). The pressing unit 6 has a pressing surface 61 facing the cleaning case 2. A second power member 7 for driving the movement of the pressing unit 6 is further connected to the pressing unit 6. The second power member 7 is connected to the inner wall surface of the storage chamber 11, and the second power member 7 has a driving end connected to the pressing unit 6. Here, the cleaning case 2 has an initial state in which it moves until the placement opening 21 and the opening 12 are aligned, and an operating state in which it rotates until the placement opening 21 and the pressing surface 61 are aligned. In the initial state, the cleaning case 2 is suitable for placing the blackboard eraser 3, and in the operating state, the pressing part 6 is suitable for pressing the blackboard eraser 3 in the cleaning case 2.

[0031] The rotation mechanism 5 drives the rotation of the cleaning case 2 and the eraser 3 (i.e., the rotation mechanism 5 directly drives the rotation of the cleaning case 2, and the eraser 3 is located inside the cleaning case 2 and rotates together with the cleaning case 2), so that the placement opening 21 of the cleaning case 2 can be aligned with the pressing surface 61, so that the pressing surface 61 can press the eraser 3. In the process of washing the eraser 3 inside the cleaning case 2, the second power member 7 drives the pressing part 6 to approach and press against the eraser 3, and then to move away from the eraser 3 and release it. When pressed, the water absorbed in the eraser 3 is pushed out, and the dust attached to the eraser 3 flows away with the water, thereby realizing the cleaning of the eraser 3. After being released, the eraser 3 can absorb water again, ready for the next pressing and cleaning. The second power member 7 drives the pressing part 6 to slide back and forth, and the pressing part 6 can continuously press and release the blackboard eraser 3, thereby achieving sufficient cleaning of the blackboard eraser 3 by multiple pressings. The sufficiently cleaned blackboard eraser 3 can then be used to wipe the blackboard. Compared with only using water flow to rinse, multiple pressings and cleanings can improve the cleaning quality of the blackboard eraser 3, fully meeting the needs of users.

[0032] As will be understood by those skilled in the art, the blackboard eraser 3 described in this embodiment being pressed actually means that the wiping part 32 of the blackboard eraser 3 is pressed. As shown in FIG. 5, the blackboard eraser 3 generally includes a handle part 31 and a wiping part 32. The wiping part 32 can be made of materials such as urethane foam and sponge, which are suitable for wiping a blackboard and have the characteristics of high elasticity and high water absorption. The wiping part 32 can absorb water when not pressed, and when pressed, the water absorbed in the wiping part 32 is pushed out. During the process from being pressed to being released, the wiping part 32 can restore its shape by its own elasticity.

[0033] As shown in Figures 2 and 5, the water inlets of the cleaning case 2 can be distributed on both sides of the rotation axis 51 of the cleaning case 2. In this case, the piping needs to be a hose so that the shape changes with the rotation of the cleaning case 2. It should be noted that the conventional means in this field can realize the coaxiality of the water inlets and the rotation axis 51, and in this case, the piping can be a hard tube. The water inlets can be installed on one side of the inside of the cleaning case 2 as a comb-shaped grid, which can disperse the water flow and make the water flow distribution more uniform, thereby generating a better cleaning effect.

[0034] In one embodiment of the present application, the pressing surface 61 is a concave curved surface that fits the outer surface of the chalkboard eraser 3 (i.e., the back surface of the chalkboard eraser 3, which is opposite to the wiping surface of the chalkboard eraser 3). In this way, the contact area between the pressing surface 61 and the chalkboard eraser 3 can be increased, making it easier for the pressing part 6 to stably press the chalkboard eraser 3, and there is no slippage between the pressing surface 61 and the chalkboard eraser 3 during the pressing process. Stable pressing can generate a stable pressing force, thereby ensuring the quality of cleaning.

[0035] In this embodiment, each cleaning case 2 corresponds to one pressing part 6, and one pressing surface 61 can cover the back surface of the blackboard eraser 3, and the area of ​​the pressing surface 61 is approximately equal to the area of ​​the back surface of the blackboard eraser 3. In addition, two pressing parts may be provided corresponding to each cleaning case 2, in which case the area of ​​the pressing surface is approximately half the area of ​​the back surface of the blackboard eraser 3.

[0036] In one embodiment of the present application, the rotation angle of the cleaning case 2 may be 90° (i.e., the predetermined angle is 90°). As shown in FIG. 2, when the cleaning case 2 is rotated 90° by the driving of the upright rotating shaft 51, the back surface of the blackboard eraser 3 can be aligned with the pressing part 6. Depending on the desired orientation of the placement opening 21, the rotation angle of the cleaning case 2 may be other values. Before and after the rotation of the cleaning case 2, the back surface of the blackboard eraser 3 is aligned with the opening 12 and the pressing part 6, respectively, and any rotation angle that can achieve this purpose falls within the scope of protection of the present application.

[0037] In one embodiment of the present application, as shown in Figures 2 and 4, the second power member 7 includes an electric push rod, which is provided on the inner wall surface of the receiving chamber 11, and the driving end of the electric push rod is connected to the pressing part 6. The electric push rod is a proficient industrial product, which has excellent performance and low cost. The pressing part 6 is driven by the electric push rod to reciprocate linearly and slide, thereby pressing the blackboard eraser 3 in the cleaning case 2, and realizing cleaning of the blackboard eraser 3.

[0038] It should be noted that the second power member 7 may be an air cylinder or a hydraulic cylinder. Any structural form of the second power member 7 obtained without any creative effort is within the scope of protection of the present application.

[0039] In one embodiment of the present application, as shown in FIG. 2, the rotation mechanism 5 includes a rotating shaft 51, a connecting member, and a third power member 52. The rotating shaft 51 is erected in the storage chamber 11, and is connected to the housing 1 so as to rotate around its own axis. The connecting member has a first connecting end connected to the outer wall surface of the cleaning case 2 and a second connecting end connected to the outer wall surface of the rotating shaft 51. The cleaning case 2 is fixed to the rotating shaft 51 by the connecting member. The third power member 52 is provided on the outer wall surface or the inner wall surface of the housing 1, and the driving end of the third power member 52 is a rotation driving end, and the rotation driving end is connected to one end of the rotating shaft 51.

[0040] The connecting member may be a bolt. A screw hole that fits the bolt may be provided on the outer wall surface of the cleaning case 2, or a through hole that is aligned with the screw hole may be provided on the rotating shaft 51. When the bolt passes through the through hole in the rotating shaft 51 and is screwed into the screw hole in the cleaning case 2, the cleaning case 2 can be fixed to the rotating shaft 51. The bolt is generally perpendicular to the rotating shaft 51 and the outer wall surface of the cleaning case 2. The rotation drive end of the third power member 52 is fixedly connected to the rotating shaft 51, and the rotating shaft 51 can be driven to rotate around its own axis as the rotation axis. By driving the rotating shaft 51, the cleaning case 2 can be rotated by a predetermined angle, so that the cleaning case 2 is in the initial state, the placement opening 21 and the opening 12 are aligned, or in the operating state, and the placement opening 21 and the pressing part 6 are aligned. Note that this embodiment is just one example of the rotation mechanism 5. Components of the second power member 7 obtained without creative effort are also within the scope of protection of the present application. For example, the rotating mechanism 5 may be realized by a general structure in the art. The general structure may be a crank mechanism. In this embodiment, the power output end of the third power member 52 is directly connected to the rotating shaft 51. When using a crank mechanism, the power output end of the third power member 52 is connected to a turntable fixed coaxially to the rotating shaft through a crank. The crank drives the rotation of the turntable, and the turntable drives the rotation of the rotating shaft. The turntable does not need to be installed at the end of the rotating shaft 51, and the end can be exposed so that a water supply port coaxial with the rotating shaft 51 is installed on the rotating shaft. In this case, the rotating shaft is not installed on the back of the cleaning case 2 as shown in FIG. 2, but faces the upper plate surface of the cleaning case 2, and the water supply port penetrates the rotating shaft and the upper plate of the cleaning case along the axial direction of the rotating shaft.

[0041] In one embodiment of the present application, as shown in FIG. 2, a partition plate 13 is provided in the storage chamber 11. The partition plate 13 divides the storage chamber 11 into an upper chamber 14 and a lower chamber 15, and the partition plate 13 is close to the top of the storage chamber 11. The third power member 52 may be a rotary motor, and the rotary motor is fixed to the inner wall surface of the upper chamber 14. The water pump as the first power member 4 may be fixed to the upper surface of the partition plate 13. A through hole is provided in the housing 1, and the piping outside the housing 1 can enter the inside of the housing 1 through the through hole. The rotating shaft 51, the cleaning case 2, the pressing part 6, and the second power member 7 are installed in the lower chamber 15.

[0042] In one embodiment of the present application, as shown in Fig. 4, the blackboard eraser cleaning device further includes a guide structure 8. The guide structure 8 can guide the sliding of the pressing part 6, and improve the stability of the pressing part 6 when it slides.

[0043] In one embodiment of the present application, as shown in FIG. 2 and FIG. 4, a gate-shaped support frame 10 is further fixed below the second power member 7, and the gate-shaped support frame 10 is located in the accommodation chamber 11 and used to support the second power member 7. The guide structure 8 includes a sleeve 81 and a guide rod 82. The sleeve 81 is provided inside the gate-shaped support frame 10. The axial direction of the sleeve 81 is the same as the sliding direction of the pressing part 6, and the sleeve 81 faces the pressing part 6 (i.e., the opening of the sleeve 81 is aligned with the pressing part 6). The pressing part 6 is fixedly connected to one end of the guide rod 82, and the other end of the guide rod 82 passes through the sleeve 81, and the guide rod 82 is slidably fitted into the sleeve 81. The fitting between the sleeve 81 and the guide rod 82 can guide the sliding of the pressing part 6, thereby improving the stability of the pressing part 6 when sliding.

[0044] In one embodiment of the present application, as shown in Figures 5 and 6, a positioning structure 9 suitable for positioning the blackboard eraser 3 in the cleaning case 2 is provided. The positioning structure 9 can position the relative positions of the cleaning case 2 and the blackboard eraser 3, so that the blackboard eraser 3 does not displace excessively in any direction other than the pressing direction during the process of being pressed. That is, the positioning structure 9 is used to maintain a relatively stable position of the blackboard eraser 3 during the process of being pressed, and to prevent the occurrence of excessive displacement thereof, thereby ensuring that the pressing part 6 is always aligned with the blackboard eraser 3 during the process of pressing.

[0045] As shown in Figures 5 and 6, the chalkboard eraser 3 generally includes a handle part 31 and a wiping part 32. There is a gap between the wiping part 32 and the side wall of the cleaning case 2, which ensures that the wiping part 32 and the inner wall of the cleaning case 2 do not rub against each other during the process of putting the chalkboard eraser 3 into the cleaning case 2, and the chalkboard eraser 3 can be quickly and smoothly put into the cleaning case 2. After being put into the cleaning case 2, the wiping part 32 is surrounded by the side wall of the cleaning case 2, and the dust on the wiping part 32 does not leak out. The diameter of the water outlet 23 may be larger than the thickness of the wiping part 32, so as to fully collect the dirty water generated by cleaning and prevent the dirty water from flowing out.

[0046] 5 and 6, the handle part 31 and the wiping part 32 are both provided with positioning holes 33 that are aligned with each other. In one embodiment of the present application, the positioning structure 9 includes a positioning post 91. One end of the positioning post 91 is fixedly connected to the case bottom of the cleaning case 2, and the other end is inserted into the positioning hole 33 of the chalkboard eraser 3 for positioning. There is a gap 311 between the insertion end of the positioning post 91 (i.e. the end inserted into the chalkboard eraser 3) and the bottom of the positioning hole 33 of the chalkboard eraser 3.

[0047] The positioning post 91 can be installed horizontally. After the positioning post 91 is inserted into the positioning hole 33 of the blackboard eraser 3 and positioned, the blackboard eraser 3 is restricted in position within the cleaning case 2. Because there is a gap 311 between the insertion end of the positioning post 91 and the positioning hole 33, the blackboard eraser 3 can move relative to the positioning post 91 in its thickness direction (i.e., the axial direction of the positioning post 91). In this way, when the blackboard eraser 3 is pressed, the wiping part 32 can be smoothly pressed, the thickness is reduced, and the water in the wiping part 32 is pushed out. When the blackboard eraser 3 is pressed, elastic deformation occurs in the wiping part 32, and when the pressing part 6 and the blackboard eraser 3 are separated, the shape of the wiping part 32 is restored. By inserting and positioning the positioning post 91 into the positioning hole 33, the blackboard eraser 3 can also be guided during the shape restoration process of the wiping part 32, ensuring that the blackboard eraser 3 does not undergo excessive displacement in any direction other than the thickness direction.

[0048] 5 and 6, in one embodiment of the present application, the positioning structure 9 further includes a magnetically attracting sheet 92 and an elastic member 93, and the magnetically attracting sheet 92 is located in the positioning hole 33 of the blackboard eraser 3. The positioning post 91 is a magnetically attracting post, and the insertion end of the magnetically attracting post can be attracted to the magnetically attracting sheet 92. The elastic member 93 has a first end connected to the magnetically attracting sheet 92 and a second end connected to the bottom of the positioning hole 33.

[0049] The elastic member 93 may be a spring. One end of the spring is fixedly connected to the bottom of the positioning hole 33, and the other end of the spring is fixedly connected to the magnetic attraction sheet 92. The magnetic attraction post and the magnetic attraction sheet 92 attract each other to stably hold the blackboard eraser 3 in the cleaning case 2, and prevent the blackboard eraser 3 from accidentally falling out of the cleaning case 2, especially when the cleaning case 2 rotates and when the blackboard eraser 3 is pressed against each other. Naturally, the magnetic attraction force between the magnetic attraction post and the magnetic attraction sheet 92 is adequate, and the user can easily release the magnetic attraction force and take out the blackboard eraser 3 from the cleaning case 2. As shown in FIG. 6, in the general case, the magnetic attraction sheet 92 has a certain thickness, and the peripheral wall of the magnetic attraction sheet 92 slides in contact with the hole wall of the positioning hole 33. During the process of the spring expanding and contracting, the magnetic attraction sheet 92 can slide along the axial direction of the positioning hole 33. Specifically, when the blackboard eraser 3 is pressed, the spring is compressed and the magnetic attraction sheet 92 slides to the back surface of the blackboard eraser 3 (to the left in FIG. 6), and when the blackboard eraser 3 is released, the spring is expanded and the magnetic attraction sheet 92 moves to the wiping surface of the blackboard eraser 3. The elastic member 93 has the function of driving the wiping part 32 to restore its own shape. Normally, the wiping part 32 has a certain elasticity, and when the blackboard eraser 3 is released, the wiping part 32 can restore its shape by its own elasticity, but the wiping part 32 has low elasticity and a low restoration speed, which affects the efficiency of cleaning. The elastic member 93 can drive the wiping part 32 to proceed to the next pressing cycle by quickly restoring its own shape, improving the efficiency of cleaning.

[0050] As shown in Figures 5 and 6, a retaining ring can be installed in the positioning hole 33. The retaining ring is fixed to the connection point between the handle part 31 and the wiping part 32. The retaining ring can restrict the position of the magnetic attraction sheet 94 within the positioning hole 33 in the handle part 31, preventing the magnetic attraction sheet 92 from slipping out of the handle part 31. If the magnetic attraction sheet 92 slips into the positioning hole 33 of the wiping part 32, the wiping part 32 will be deformed by the force when wiping the blackboard, and the wiping part 32 will be easily damaged by the magnetic attraction sheet 92 inside it, causing damage to the blackboard eraser 3.

[0051] As shown in Figures 5 and 6, several position limiting parts 94 can be installed in the positioning hole 33. The position limiting parts 94 are fixed to the connection points between the handle part 31 and the wiping part 32. Several position limiting parts 94 are distributed along the circumferential direction of the positioning hole 33. Each position limiting part 94 has a position limiting surface that contacts the magnetic attraction sheet 92. The function of the position limiting parts 94 is the same as that of a retaining ring, and the function of the position limiting parts 94 will not be described here. The position limiting parts 94 differ from a retaining ring only in the installation method.

[0052] Furthermore, when it is necessary to remove the magnetic attraction sheet 92, the magnetic attraction sheet 92 can be removed by rotating the magnetic attraction sheet 92 so that it can pass through the slot of the adjacent position limiting portion 94. A notch that matches the shape of the position limiting portion 94 can be provided on the edge of the magnetic attraction sheet 92. The magnetic attraction sheet 92 can also be removed by rotating the magnetic attraction piece 92 to align the notch with the position limiting portion 94. When the magnetic attraction sheet 92 operates, the notch and the position limiting portion 94 are misaligned in the circumferential direction and cannot be aligned.

[0053] In one embodiment of the present application, as shown in Figures 5 and 6, a baffle 95 is provided at the second end of the elastic member 93, and the baffle 95 is fixed to the bottom of the positioning hole 33. The second end of the elastic member 93 is engaged with the baffle 95. An engagement chamber 951 is formed between the baffle 95 and the bottom of the positioning hole 33. The elastic member 93 may be a spring, and the width of the baffle 95 (in Figures 5 and 6, the width direction of the baffle 95 is the direction perpendicular to the paper) is smaller than the diameter of the spring, and the second end of the spring can be screwed into the engagement chamber 951, realizing the engagement between the second end of the spring and the baffle 95 and limiting the movement of the spring along its axial direction.

[0054] In one embodiment of the present application, as shown in Figures 5 and 6, the positioning post 91 and the case bottom of the cleaning case 2 are connected by one or more of the following: engagement, pin connection, and bolt connection. In this embodiment, bolt connection is taken as an example. A screw hole (the depth direction of this screw hole coincides with the axial direction of the positioning post 91) is provided at the fixed end of the positioning post 91 (i.e., the end connected to the cleaning case 2), and a through hole that is aligned with the screw hole of the positioning post 91 is provided in the cleaning case 2. After the screw hole of the positioning post 91 is aligned with the through hole of the cleaning case 2, the positioning post 91 is fixed with a bolt.

[0055] 2 and 3, in one embodiment of the present application, a water tank 16 is provided below the housing 1, and the inside of the water tank 16 is divided into a dirty water area 161 and a fresh water area 162. The end of the piping away from the cleaning case 2 communicates with the fresh water area 162. A water leak port 17 communicating with the dirty water area 161 is provided at the bottom of the housing 1.

[0056] Wastewater generated during the process of rinsing the blackboard eraser 3 flows into the wastewater area 161 of the water tank 16 from the water leak 17 of the housing 1, and the wastewater area 161 collects the wastewater. The fresh water area 162 of the water tank 16 is connected to the piping, and the water pump transports the water in the fresh water area 162 into the cleaning case 2, supplying clean fresh water to the cleaning case 2 to rinse the blackboard eraser 3. A filtering structure 18 is provided between the wastewater area 161 and the fresh water area 162, and the filtering structure 18 can filter the wastewater generated during the cleaning process. The filtered wastewater enters the fresh water area 162, thereby realizing the cyclical use of water.

[0057] In one embodiment of the present application, as shown in Fig. 2 and Fig. 3, the filtering structure 18 includes a filtering frame, and several layers of filtering cotton are provided in the filtering frame. The filtering frame can cross the water tank 16 and divide the waste water area 161 and the fresh water area 162. The two opposing inner walls of the water tank 16 are provided with an insertion groove 19. The insertion groove 19 is erected, and the filtering frame is inserted into the water tank 16 through the insertion groove 19 and fixed to the water tank 16. This method not only allows the filtering structure 18 to be stably held between the waste water area 161 and the fresh water area 162 during use, but also makes it easy to replace the filtering structure 18. When replacing, the water tank 16 is first separated from the housing 1, then the old filtering structure 18 is extracted from the insertion groove 19 of the water tank 16, and finally the new filtering structure 18 is inserted into the insertion groove 19, which is simple, convenient, fast and efficient.

[0058] The present application further provides a method for using the above-mentioned chalkboard eraser cleaning device, i.e., a chalkboard eraser cleaning method.

[0059] The present application provides a method for cleaning a blackboard eraser. Step S101 of placing a chalkboard eraser in a cleaning case of a cleaning device, in which a rotating mechanism, a pressing mechanism and a cleaning mechanism are provided in the cleaning device, the pressing mechanism faces the cleaning mechanism and the rotating mechanism is connected to the cleaning case; The rotation mechanism drives the cleaning case to rotate to a cleaning position in step S102; A step S103 in which the cleaning mechanism washes the eraser and the pressing mechanism presses the eraser; Step S104 repeats the cleaning and pressing process until cleaning is completed; The step S105 includes driving the rotation mechanism to rotate the cleaning case to an initial position.

[0060] Compared with the prior art, the chalkboard eraser cleaning method provided in the present application can realize automatic cleaning of the chalkboard eraser through steps S101 to S105. It is not necessary for the user's hands to come into contact with dirty water containing dissolved dust, and damage to physical health can be avoided. In addition, automatic cleaning does not occupy the user's time and can free the user from manual cleaning work. After the chalkboard eraser 3 is placed in the cleaning case 2 of the cleaning device, the rotating mechanism 5 rotates the chalkboard eraser 3 to the cleaning position. Then, the water flow provided by the cleaning mechanism washes the chalkboard eraser 3 to remove the dust on the chalkboard eraser 3, and during the washing process, the pressing mechanism repeatedly presses the chalkboard eraser 3, so that the chalkboard eraser 3 repeatedly absorbs water and then the water is pushed out, and the pushed-out water can carry away the dust on the chalkboard eraser 3, ensuring that the chalkboard eraser is thoroughly cleaned. After the cleaning is completed, the chalkboard eraser 3 rotates to the initial position, and the user can take the chalkboard eraser 3 out of the cleaning case at the initial position.

[0061] In one embodiment of the present application, after placing the chalkboard eraser in the cleaning case of the cleaning device, i.e., after step S101, the chalkboard eraser cleaning method provided in the present application includes: The method further includes a step S101-1 of determining whether a chalkboard eraser is placed in the cleaning case. The determination process can be realized by a detection switch installed in the cleaning case. The detection switch can be a position sensor, and after the chalkboard eraser is placed in the cleaning case, the position sensor generates a position signal. When the position signal goes from nonexistent to active, it can be determined that the chalkboard eraser is placed in the cleaning case and the user needs to clean the chalkboard eraser. In this case, the rotation mechanism drives the cleaning case to rotate, and places the chalkboard eraser in the cleaning position.

[0062] This embodiment realizes automatic detection of the operation of placing the eraser. Whether the rotating mechanism operates is determined according to the result of the automatic detection, and the degree of automation of the cleaning of the eraser is further increased. Otherwise, if the automatic detection is not used, the user needs to input a command by a button or the like to instruct the rotating mechanism to operate. In practical application, this step does not usually occur after the eraser is placed in the cleaning case, but is always performed continuously. For example, this step can be continuously executed by a PLC (Programmable Logic Controller) program with a period of time in milliseconds. That is, the PLC can detect once every tens of milliseconds, and when it finds that the eraser is placed in the cleaning case, it can drive the rotating mechanism to rotate and start the cleaning process.

[0063] In one embodiment of the present application, a blackboard eraser is placed in the cleaning case by the following method: The chalkboard eraser is placed in the cleaning case through the placement opening thereof so that the wiping surface of the chalkboard eraser is surrounded by the inner wall of the cleaning case and a gap exists between the wiping surface of the chalkboard eraser and the side wall of the cleaning case.

[0064] As described above, the wiping surface of the chalkboard eraser limited to this embodiment is surrounded by the inner wall of the cleaning case, and a gap exists between the wiping surface and the inner wall of the cleaning case, which can be realized by the positioning structure 9 shown in Figures 5 and 6.

[0065] In this embodiment, the wiping surface is surrounded by the inner wall of the cleaning case, so that dust on the eraser can be prevented from leaking out, and a gap exists between the wiping surface and the inner wall of the cleaning case, so that the water flow can pass through the gap and easily wrap around the wiping surface of the eraser, enhancing the cleaning effect.

[0066] In one embodiment of the present application, the step of the cleaning mechanism washing the eraser and the pressing mechanism pressing the eraser, i.e., step S103, includes: Within a predetermined time, the cleaning mechanism performs a step S103-1 of cleaning the wiping surface of the chalkboard eraser; The method includes step S103-2 in which, after rinsing is completed, the pressing mechanism presses the non-wiping surface of the eraser so that the wiping surface of the eraser presses the inner wall of the cleaning case to push out the water in the eraser.

[0067] After rinsing, the pressing mechanism presses the eraser, which can push out the water inside the eraser and make the dust on the wiping surface flow out with the water. The above rinsing and pressing process is repeated to ensure that the eraser is thoroughly cleaned.

[0068] 5, the blackboard eraser 3 includes a handle portion 31 and a wiping portion 32. The wiping surface is the surface of the wiping portion 32, and the non-wiping surface is the surface of the handle portion 31.

[0069] In one embodiment of the present application, the step of the cleaning mechanism washing the eraser and the pressing mechanism pressing the eraser, i.e., step S103, includes: The method includes a step S103-3 in which the cleaning mechanism rinses the wiping surface of the eraser while the pressing mechanism presses the non-wiping surface of the eraser.

[0070] This embodiment and the previous embodiment have two different washing and pressing methods. In the previous embodiment, washing and pushing are performed back and forth, but in this embodiment, washing and pushing are performed simultaneously. In this embodiment, the eraser is pressed during the washing process, so that the eraser is always under the action of the water flow impact, and the eraser is ensured to be thoroughly cleaned.

[0071] In one embodiment of the present application, after the cleaning mechanism stops rinsing, the pressing mechanism moves back and forth and presses the non-wiping surface of the eraser multiple times. By pressing the eraser multiple times, the water in the eraser can be sufficiently pushed out. By controlling the depth of pressing, the amount of water remaining in the eraser can be controlled, and the wiping unit 32 is thereby controlled to control the humidity of the eraser. The wiping unit 32 with the appropriate humidity is used to wipe the blackboard, resulting in a high wiping effect.

[0072] In one embodiment of the present application, the step of cleaning the wiping surface of the chalkboard eraser by the cleaning mechanism includes: The water flow sent from the cleaning mechanism cleans the surface of the eraser from top to bottom, and the water flow includes a step of wrapping the surface of the eraser. This embodiment adopts a cleaning method in which the water flow flows from top to bottom. This cleaning method can increase the impact force by utilizing the gravity of the water flow, thereby achieving a better cleaning effect. In this cleaning method, the impact force of the water flow comes from two aspects: the driving force of the cleaning mechanism to the water and the gravity of the water.

[0073] In one embodiment of the present application, the step of the pressing mechanism pressing the non-wiping surface of the eraser includes the step of the pressing mechanism reciprocating and pressing the non-wiping surface of the eraser multiple times. By pressing the eraser multiple times, the water in the eraser can be better pushed out, so that the water flow can sufficiently carry away the dust in the eraser.

[0074] In one embodiment of the present application, the method for cleaning a blackboard eraser provided herein further includes a step of collecting wastewater generated during the cleaning process, filtering the collected wastewater, and sending the filtered clean water back into the cleaning mechanism, thereby realizing water recycling and reducing cleaning costs.

[0075] The size of the numbers of each step in the above embodiment does not mean the order of execution, and the execution order of each process should be determined by its function and inherent logic, and does not limit the implementation process of the embodiment of the present application. It should be understood that the above description is only a preferred embodiment of the present application and does not limit the present application, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application. [Explanation of symbols]

[0076] 1... housing, 11... storage chamber, 12... opening, 13... partition plate, 14... upper chamber, 15... lower chamber, 16... water tank, 161... dirty water area, 162... fresh water area, 17... leakage port, 18... filtration structure, 19... insertion groove, 2... cleaning case, 21... placement port, 22... water supply port, 23... water outlet, 3... blackboard eraser, 31... handle, 311... gap, 32... wiping part, 33... positioning hole, 4...first power member, 5...rotation mechanism, 51...rotation shaft, 52...third power member, 6...pressing portion, 61...pressing surface, 7...second power member, 8...guide structure, 81...sleeve, 82...guide rod, 9...positioning structure, 91...positioning post, 92...magnetic attraction sheet, 93...elastic member, 94...position limiting portion, 95...baffle, 951...engagement chamber, 10...portion-shaped support frame.

Claims

1. A housing having a storage chamber, the housing having an opening communicating with the storage chamber on one side or a top surface of the housing; a cleaning case suitable for placing a blackboard eraser, located within the storage chamber, and having a placement opening aligned with the opening, the cleaning case having a water inlet and a water outlet on two opposing side walls of the cleaning case; a flushing mechanism including a pipe having one end communicating with a water supply port of the cleaning case and the other end communicating with a water source, and a first power member provided on an inner wall surface or an outer wall surface of the housing, connected to the pipe, and used to provide power to the water in the pipe; Here, when the blackboard eraser in the cleaning case is washed away, the storage chamber receives the dirty water after washing away, The blackboard eraser cleaning device is a rotation mechanism located within the storage chamber, the rotation mechanism having a rotation drive end connected to an outer wall surface of the cleaning case, the rotation drive end being suitable for driving the cleaning case to rotate by a predetermined angle to bring the cleaning case into an initial state or an operating state; a pressing part that is slidably installed in the storage chamber, has a pressing surface facing the cleaning case, and is connected to a second power member for driving the movement of the pressing part; When the cleaning case is in the initial state, the placement opening and the opening are aligned, and the blackboard eraser can be placed in the cleaning case; The chalkboard eraser cleaning device described in claim 1, characterized in that when the cleaning case is in the operating state, the placement opening and the pressing part are aligned, the pressing part can press the chalkboard eraser in the cleaning case, and while rinsing the wiping surface of the chalkboard eraser or after the rinsing of the chalkboard eraser is completed, the pressing part presses the non-wiping surface of the chalkboard eraser, so that the wiping surface of the chalkboard eraser presses the inner wall of the cleaning case and pushes out the water in the chalkboard eraser.

2. 2. The blackboard eraser cleaning device according to claim 1, wherein the piping is a hose, and the sliding direction of the pressing portion is perpendicular to the axial direction of the opening.

3. 3. The chalkboard eraser cleaning device according to claim 2, wherein the pressing surface is a concave curved surface that matches the outer surface of the chalkboard eraser.

4. The rotation mechanism includes: a rotation shaft that is erected in the accommodation chamber and rotatably installed on the housing; a connecting member having a first connecting end connected to an outer wall surface of the cleaning case and a second connecting end connected to an outer wall surface of the rotating shaft; The blackboard eraser cleaning device as described in claim 2, characterized in that it includes a third power member provided on the outer wall surface or inner wall surface of the housing, the drive end of which is the rotational drive end of the rotation mechanism, and the rotational drive end is connected to one end of the rotation shaft.

5. The blackboard eraser cleaning device according to claim 2, characterized in that the second power member includes an electric push rod, the electric push rod is provided on an inner wall surface of the housing, and a driving end of the electric push rod is connected to the pressing portion.

6. a gate-shaped support frame is further fixedly provided below the second power member, the gate-shaped support frame is located within the accommodation chamber, and is used to support the second power member; A sleeve is installed inside the gate-shaped support frame, the axial direction of the sleeve is the same as the sliding direction of the pressing part, and the opening of the sleeve is aligned with the pressing part; 3. The blackboard eraser cleaning device according to claim 2, wherein a guide rod is connected to the pressing portion, the guide rod passing through the sleeve and slidably fitted into the sleeve.

7. A chalkboard eraser cleaning device as described in any one of claims 1 to 6, characterized in that a positioning structure suitable for positioning a chalkboard eraser in the cleaning case is provided, the positioning structure includes a positioning post, one end of the positioning post is connected to the bottom of the cleaning case and the other end is inserted into a positioning hole in the chalkboard eraser to position it, and there is a sliding gap between the insertion end of the positioning post and the bottom of the positioning hole in the chalkboard eraser.

8. The positioning structure includes: A magnetically attracted sheet located in a positioning hole of a chalkboard eraser, the positioning post being a magnetically attracted post, and an insertion end of the magnetically attracted post being adapted to be attracted to the magnetically attracted sheet; The blackboard eraser cleaning device of claim 7, further comprising an elastic member located within the positioning hole and having a first end connected to the magnetic attraction sheet and a second end connected to the bottom of the positioning hole.

9. A blackboard eraser cleaning device as described in any one of claims 1 to 6, characterized in that a water tank is provided below the housing, the inside of the water tank is divided into a wastewater area and a fresh water area, the end of the piping away from the cleaning case is connected to the fresh water area, there is a water leakage outlet at the bottom of the housing that is connected to the wastewater area, and a filtration structure is provided between the wastewater area and the fresh water area.

10. The blackboard eraser cleaning device of claim 9, characterized in that an insertion groove is provided on each of two opposing inner wall surfaces of the water tank, the insertion groove is installed in a vertical direction, and the filtering structure is inserted into the insertion groove and traverses the water tank.

Images