A surface treatment apparatus and method for solar screen printing plates

By designing a surface treatment device for cleaning and scraping mechanisms, the problems of scratches and dust residue during the cleaning process of solar screens were solved, achieving efficient and stable cleaning results.

CN117002149BActive Publication Date: 2025-12-02常州三洋精密制版股份有限公司
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Patent Information

Application Number
CN202311188018.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-09-15
Publication Date
2025-12-02
Estimated Expiration
2043-09-15

AI Technical Summary

Technical Problem

Existing solar screen cleaning devices are prone to causing scratches and secondary pollution from dust and residue on the screen surface during the brushing process.

Method used

A surface treatment device including a cleaning mechanism and a scraping mechanism was designed. The built-in motor drives the brush bristles to rotate and combines magnetic and elastic structures to achieve automatic adjustment and self-cleaning of the bristles, avoiding scratches caused by excessive force. The water spraying and scraping mechanism reduces the adhesion of dust and residue.

Benefits of technology

It effectively avoids secondary pollution from scratches and dust residue on the surface of the stencil, improves cleaning efficiency and stability, and ensures the quality of the stencil in use.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a surface treatment device for solar cell screens, including a built-in motor handle. A cleaning mechanism is provided outside the built-in motor handle. The cleaning mechanism includes a connecting plate, which is a circular disc structure. A rotating shaft is fixedly connected to the inner wall of the connecting plate, and one end of the rotating shaft is fixedly connected to the inner wall of the built-in motor handle. A turntable is fixedly connected to the outer wall of the connecting plate, and brush bristles are fixedly connected to the outer wall of the turntable. The connecting plate is used to drive the turntable to rotate via the built-in motor handle. This invention relates to the field of solar energy technology. By setting up the cleaning mechanism, the spring A on the fixed ring B is compressed and deformed between the fixed ring B and the fixed ring A, thereby completely pushing the brush bristles out of the sliding sleeve. This ensures that the brush bristles are only pushed out during cleaning; when not cleaning, the brush bristles are retracted into the sliding sleeve, effectively preventing dust from settling on the brush bristles when cleaning is not in operation.
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Description

Technical Field

[0001] This invention relates to the field of solar energy technology, specifically to a surface treatment device and method for solar screen printing. Background Technology

[0002] The cleaning device for solar screens refers to the device that cleans the screen to ensure its functionality. During the manufacturing or use of the screen, dust or grease often accumulates on its surface, and the accumulation of dust and grease can affect the screen's working efficiency. Therefore, cleaning the screen is essential.

[0003] Referring to the solar screen cleaning device described in patent application CN217917289U, this utility model relates to a solar screen cleaning device, belonging to the field of screen cleaning technology. The solar screen cleaning device includes a main body, a first fan blade, a first mounting frame, and a second mounting frame. The first fan blade is located inside the main body and is fixedly connected to the inner surface of the main body via a fixing block.

[0004] Currently, when cleaning the surface of solar grid panels, using a brush can easily lead to problems with controlling the brushing force. As a result, residual particles on the surface of the grid panel can be scratched when the brush is rolled back and forth. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a surface treatment device and method for solar screen printing plates, thereby achieving the goal of solving the aforementioned problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a surface treatment device for solar screens, including a built-in motor handle, wherein a cleaning mechanism is provided on the outside of the built-in motor handle;

[0007] The cleaning mechanism includes:

[0008] The connecting plate is a circular disc structure. A rotating shaft is fixedly connected to the inner wall of the connecting plate. One end of the rotating shaft is fixedly connected to the inner wall of the built-in motor handle. A turntable is fixedly connected to the outer wall of the connecting plate. Brush bristles are fixedly connected to the outer wall of the turntable. The connecting plate is used to drive the turntable to rotate by the built-in motor handle.

[0009] A fixed sleeve is provided, the outer wall of which is fixedly connected to the outer wall of the built-in motor handle. A sliding sleeve is slidably connected to the inner wall of the fixed sleeve. A fixed ring A is fixedly connected to the outer wall of the sliding sleeve. A spring A is fixedly connected to the outer wall of the fixed ring A. A fixed ring B is fixedly connected to one end of the spring A. The inner wall of the fixed ring B is fixedly connected to the outer wall of the fixed sleeve.

[0010] Preferably, a fan blade is fixedly connected to the outer wall of the rotating shaft, a fixing block is fixedly connected to the outer wall of the fixing ring A, and a rotating ball is slidably connected to the inner wall of the fixing block, so as to move and adhere to the solar grid panel through the rotating ball.

[0011] Preferably, a filter plate is fixedly connected to the outer wall of the fixing ring A, a nozzle is fixedly connected to the inner wall of the fixing sleeve, a ventilation groove is provided on the inner wall of the fixing sleeve, one end of the water pipe is fixedly connected to the outer wall of the fixing sleeve, and a scraping mechanism is provided inside the fixing sleeve.

[0012] Preferably, the scraping mechanism includes a push rod, one end of which is rotatably connected to a hinge block A. The outer wall of the hinge block A is fixedly connected to the inner wall of the fixed sleeve. A spring B is fixedly connected to the outer wall of the hinge block A, and one end of the spring B is fixedly connected to the outer wall of the push rod.

[0013] Preferably, a push plate is fixedly connected to the inner wall of the sliding sleeve, and a groove is provided at one end of the push plate to push the push rod.

[0014] Preferably, a ring is fixedly connected to the outer wall of the push rod, a hinge ball is rotatably connected to the outer wall of the ring, a hinge rod is fixedly connected to the outer wall of the hinge ball, a hinge block B is hinged to one end of the hinge rod, a scraper ring is fixedly connected to the outer wall of the hinge block B, and the outer wall of the scraper ring is slidably connected to the inner wall of the fixed sleeve, so that the scraper ring can perform scraping and sliding.

[0015] Preferably, a connecting post is fixedly connected to the outer wall of the fixing sleeve, a magnetic ball is fixedly connected to one end of the connecting post, a retaining ring is fixedly connected to the outer wall of the connecting post, a spring C is fixedly connected to the outer wall of the retaining ring, and one end of the spring C is fixedly connected to the outer wall of the fixing sleeve, thereby fixing the spring.

[0016] Preferably, the inner wall of the rotating ball is provided with a magnetic groove, the magnetic groove itself is magnetic, the magnetic ball itself is magnetic, and the magnetic poles of the magnetic groove and the magnetic ball on the opposite side are like poles and repel each other, thereby repelling and pushing each other away.

[0017] A surface treatment method for solar screen printing plates:

[0018] S1: Hold the built-in motor handle and start the built-in motor handle to control the fixed sleeve and turntable to rotate, and drive the brush bristles on the outer wall of the turntable to rotate synchronously. The rapid rotation of the brush bristles wipes the surface of the solar grid panel, removing the adhesive residue on the surface of the solar grid panel and keeping it clean.

[0019] S2: Before wiping, water is sprayed onto the connecting plate through the water pipe connected inside the connecting plate. The water is then sprayed out through the nozzle inside the connecting plate to achieve the cleaning effect of wiping.

[0020] This invention provides a surface treatment apparatus and a surface treatment method for solar screen printing plates.

[0021] It has the following beneficial effects:

[0022] 1. This invention, through the setting of a cleaning mechanism, allows the hand and water pipe to hang down naturally under the weight of the arm when the hand is placed on the mesh plate for cleaning. This causes the fixed sleeve to be pressed down, and the outer wall of the sliding sleeve, which is slidably connected to the inner wall of the fixed sleeve, comes into contact with the outer wall of the solar mesh plate. As the fixed sleeve is pressed down, the spring A on the fixed ring B is squeezed and deformed between the fixed ring B and the fixed ring A, thereby pushing the bristles completely out of the sliding sleeve. This ensures that the bristles are only pushed out during cleaning, and when not cleaning, the bristles are retracted into the sliding sleeve, effectively preventing dust from falling onto the bristles when cleaning is not in progress.

[0023] 2. This invention, through the setting of a cleaning mechanism, pushes the sliding sleeve against the inner wall of the fixed sleeve with different forces. At the same time, the bristles are also pushed to be closer to the outer wall of the solar grid for brushing. At this time, the outer wall of the sliding sleeve rolls against the surface of the solar grid through the rotating ball in the fixed block. This achieves static friction between the rotating ball and the surface of the solar grid, preventing relative movement of dust on the surface of the solar grid and avoiding the problem of dust particles being scraped by friction, which would cause scratches on the solar grid. This further protects the quality of the solar grid under the forceful pressing cleaning state.

[0024] 3. This invention, through the setting of a cleaning mechanism, when the fixed sleeve is continuously pushed and pressed for cleaning, pushes the sliding sleeve, which in turn continuously retracts into the inner wall of the fixed sleeve. Then, the elastic force of spring A on the sliding sleeve gradually increases due to its own deformation. Thus, the operator can judge the pressure applied in real time by feeling the pressing stroke and the gradually increasing feedback of the spring. This avoids the situation where when directly contacting the solar grid panel through the outer wall of the sliding sleeve, there is no pressing stroke, and the operator cannot feel the amount of pressure applied. This can easily lead to excessive pressure, which can cause scratches on the surface of the solar grid panel due to friction from dust particles, even when the rotating ball is rolling.

[0025] 4. This invention, through the setting of a scraping mechanism, when the fixed sleeve gradually approaches the sliding sleeve and reaches a certain distance, the magnetic groove inside the rotating ball will start to rotate continuously with the rotation of the rotating ball. Through the magnetic repulsion between the magnetic groove and the magnetic ball on the outer wall of the fixed sleeve, the magnetic ball is pushed to slide on the inner wall of the fixed sleeve by the connecting column and compresses the spring C to deform it. When the magnetic groove disengages from the magnetic ball, the rebound force of the spring C will eject the magnetic ball and impact the outer wall of the sliding sleeve near the fixed sleeve. As the fixed sleeve is continuously pushed to drive the bristles to perform the cleaning work, the magnetic ball will continuously emit a metallic collision sound, thus reminding the cleaning staff that the pressing intensity is too high at this time, which may easily damage the surface of the solar grid panel. This allows the staff to stop and reduce the pressing intensity to maintain the stability of the cleaning work.

[0026] 5. This invention, through the setting of a scraping mechanism, when the sliding sleeve gradually retracts into the inner wall of the fixed sleeve, the push plate on the outer wall of the sliding sleeve will begin to touch the push rod and push the push rod. When the push rod is pushed, it will rotate hinged on the hinge block A, causing the spring B to deform. Thus, during the pressing and cleaning process, the rotating bristles will first contact the push rod that has not been pushed by the push plate, and through the continuous pushing of the push rod by the bristles, the bristles themselves will continuously bounce and flick due to elasticity, thereby achieving real-time self-cleaning of the bristles. At each start and stop, the push plate will return to its original position, and the push rod will begin to block the bristles and cause the bristles to be flicked to complete the fully automatic cleaning work, avoiding the adhesion of dust and residue to the bristles and causing subsequent secondary pollution. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the cleaning mechanism of the present invention. Figure 1 ;

[0029] Figure 3 For the present invention Figure 2 Enlarged view of point A;

[0030] Figure 4 For the present invention Figure 2 Enlarged view of point B;

[0031] Figure 5 This is a schematic diagram of the cleaning mechanism of the present invention. Figure 2 ;

[0032] Figure 6 This is a schematic diagram of the disassembly structure of the cleaning mechanism of the present invention. Figure 1 ;

[0033] Figure 7 This is a schematic diagram of the disassembly structure of the cleaning mechanism of the present invention. Figure 2 ;

[0034] Figure 8 This invention provides a three-dimensional transformation of the cleaning mechanism. Figure 1 ;

[0035] Figure 9 This invention provides a three-dimensional transformation of the cleaning mechanism. Figure 2 ;

[0036] Figure 10 This is a schematic diagram of the scraping mechanism of the present invention. Figure 1 ;

[0037] Figure 11 This is a schematic diagram of the scraping mechanism of the present invention. Figure 2 ;

[0038] Figure 12 For the present invention Figure 6 Enlarged view of point C;

[0039] Figure 13 This is a three-dimensional transformation diagram of the scraping mechanism of the present invention.

[0040] In the diagram: 1 Water pipe, 2 Built-in motor handle, 3 Cleaning mechanism, 301 Connecting plate, 302 Turntable, 303 Brush bristles, 304 Fixing sleeve, 305 Sliding sleeve, 306 Fixing ring A, 307 Spring A, 308 Fixing ring B, 309 Fixing block, 310 Rotating ball, 311 Rotating shaft, 312 Fan blade, 313 Filter plate, 314 Nozzle, 315 Ventilation slot, 4 Scraping mechanism, 401 Push plate, 402 Hinge block A, 403 Spring B, 404 Push rod, 405 Ring, 406 Hinge rod, 407 Hinge block B, 408 Scraper ring, 409 Connecting column, 410 Spring C, 411 Magnetic ball, 412 Retaining ring, 413 Magnetic groove. Detailed Implementation

[0041] Example 1, please refer to Figure 1-3 The present invention provides a technical solution: a surface treatment device for solar screens, including a built-in motor handle, and a cleaning mechanism is provided outside the built-in motor handle;

[0042] The cleaning facilities include:

[0043] The connecting plate is a circular disc structure. A rotating shaft is fixedly connected to the inner wall of the connecting plate. One end of the rotating shaft is fixedly connected to the inner wall of the built-in motor handle. A turntable is fixedly connected to the outer wall of the connecting plate. Brush bristles are fixedly connected to the outer wall of the turntable. The connecting plate is used to drive the turntable to rotate by the built-in motor handle.

[0044] A fixed sleeve is fixedly connected to the outer wall of the built-in motor handle. A sliding sleeve is slidably connected to the inner wall of the fixed sleeve. A fixed ring A is fixedly connected to the outer wall of the sliding sleeve. A spring A is fixedly connected to the outer wall of the fixed ring A. A fixed ring B is fixedly connected to one end of the spring A. The inner wall of the fixed ring B is fixedly connected to the outer wall of the fixed sleeve.

[0045] Hold the built-in motor handle and start the built-in motor handle to control the rotation of the fixing sleeve and the turntable, and drive the brush bristles on the outer wall of the turntable to rotate synchronously. The rapid rotation of the brush bristles wipes the surface of the solar grid panel, removing the adhesive residue and keeping it clean. At the same time, water is sprayed into the connecting plate through the water pipe inside the connecting plate. The water spray is sprayed out through the nozzle inside the connecting plate to achieve the water wiping cleaning effect.

[0046] When the hand is placed on the grid plate for cleaning, the hand and water pipe will hang down naturally due to the weight of the arm, which will cause the fixing sleeve to press down. The outer wall of the sliding sleeve, which is slidably connected to the inner wall of the fixing sleeve, will contact the outer wall of the solar grid plate. As the fixing sleeve is pressed down, the spring A on the fixing ring B will be squeezed and deformed between the fixing ring B and the fixing ring A, thereby pushing the bristles completely out of the sliding sleeve. This ensures that the bristles are only pushed out when cleaning, and when not cleaning, the bristles are retracted into the sliding sleeve, effectively preventing dust from falling on the bristles when cleaning is not in progress.

[0047] Example 2, please refer to Figure 1-9 Based on Embodiment 1, the present invention provides a technical solution: a fan blade is fixedly connected to the outer wall of the rotating shaft, a fixing block is fixedly connected to the outer wall of the fixing ring A, and a rotating ball is slidably connected to the inner wall of the fixing block.

[0048] A filter plate is fixedly connected to the outer wall of the fixed ring A, a nozzle is fixedly connected to the inner wall of the fixed sleeve, a ventilation groove is opened on the inner wall of the fixed sleeve, one end of the water pipe is fixedly connected to the outer wall of the fixed sleeve, and a scraping mechanism is provided inside the fixed sleeve.

[0049] When the sliding sleeve is pushed down by different forces to slide against the inner wall of the fixed sleeve, the bristles are also pushed to be closer to the outer wall of the solar grid for brushing. At this time, the outer wall of the sliding sleeve rolls against the surface of the solar grid through the rotating ball in the fixed block, thus achieving static friction between the rotating ball and the surface of the solar grid. This prevents relative movement of dust on the surface of the solar grid, which would cause the dust particles to be scraped and scratched, and further protects the quality of the solar grid under the forceful pressing and cleaning state.

[0050] Simultaneously, as the turntable rotates rapidly, the shaft and fan blades rotate in sync. The fan blades blow away particles adhering to the bristles and disperse water and particles sprayed onto the solar panel surface, improving the cleaning effect of the bristles on the solar grid. The dust blown off and the water flowing out are blocked and filtered by the filter plates on both sides of the turntable, and a large amount of residue is collected inside the filter plates, preventing sand and gravel residue from sliding down and causing secondary pollution around the solar grid.

[0051] While continuing to push the fixed sleeve to clean, the fixed sleeve pushes the sliding sleeve, which in turn retracts into the inner wall of the fixed sleeve. The elastic force of spring A on the sliding sleeve gradually increases due to its deformation. Thus, the staff can judge the pressure applied in real time by feeling the pressing stroke and the gradually increasing feedback of the spring. This avoids the situation where there is no pressing stroke when directly contacting the solar grid panel through the outer wall of the sliding sleeve, and the staff cannot feel how much pressure they are applying. This can easily lead to excessive pressure, which can cause scratches on the surface of the solar grid panel due to friction from dust particles, even when the ball is rolling.

[0052] Example 3, please refer to Figure 1-13 Based on Embodiment 1 and Embodiment 2, the present invention provides a technical solution: the scraping mechanism includes a push rod, one end of which is rotatably connected to a hinge block A, the outer wall of the hinge block A is fixedly connected to the inner wall of the fixed sleeve, and a spring B is fixedly connected to the outer wall of the hinge block A, one end of which is fixedly connected to the outer wall of the push rod.

[0053] A push plate is fixedly connected to the inner wall of the sliding sleeve, and a groove is provided at one end of the push plate.

[0054] A ring is fixedly connected to the outer wall of the push rod, a hinged ball is rotatably connected to the outer wall of the ring, a hinged rod is fixedly connected to the outer wall of the hinged ball, a hinged block B is hinged to one end of the hinged rod, a scraper ring is fixedly connected to the outer wall of the hinged block B, and the outer wall of the scraper ring is slidably connected to the inner wall of the fixed sleeve.

[0055] A connecting post is fixedly connected to the outer wall of the fixed sleeve. A magnetic ball is fixedly connected to one end of the connecting post. A retaining ring is fixedly connected to the outer wall of the connecting post. A spring C is fixedly connected to the outer wall of the retaining ring. One end of the spring C is fixedly connected to the outer wall of the fixed sleeve.

[0056] The inner wall of the rotating sphere has magnetic grooves. The magnetic grooves themselves are magnetic, and the magnetic sphere itself is magnetic. The magnetic poles on the opposite side of the magnetic grooves and the magnetic sphere repel each other.

[0057] A surface treatment method for solar screen printing plates,

[0058] S1: Hold the built-in motor handle and start the built-in motor handle to control the fixed sleeve and turntable to rotate, and drive the brush bristles on the outer wall of the turntable to rotate synchronously. The rapid rotation of the brush bristles wipes the surface of the solar grid panel, removing the adhesive residue on the surface of the solar grid panel and keeping it clean.

[0059] S2: Before wiping, water is sprayed onto the connecting plate through the water pipe connected inside the connecting plate. The water is then sprayed out through the nozzle inside the connecting plate to achieve the cleaning effect of wiping.

[0060] Furthermore, as the fixed sleeve gradually approaches the sliding sleeve and reaches a certain distance, the magnetic groove inside the rotating ball will start to rotate continuously with the rotation of the ball. Through the magnetic repulsion between the magnetic groove and the magnetic ball on the outer wall of the fixed sleeve, the magnetic ball is pushed to slide on the inner wall of the fixed sleeve by the connecting column and squeezes the spring C to deform it. When the magnetic groove disengages from the magnetic ball, the rebound force of the spring C will eject the magnetic ball and hit the outer wall of the sliding sleeve near the fixed sleeve. As the fixed sleeve is continuously pushed to drive the bristles to perform cleaning work, the magnetic ball will continuously emit a metallic clanging sound, thus reminding the cleaning staff that the pressing intensity is too high at this time. At this pressure, it is easy to damage the surface of the solar grid panel. This allows the staff to stop and reduce the pressing pressure to maintain the stability of the cleaning work.

[0061] As the sliding sleeve gradually retracts into the inner wall of the fixed sleeve, the push plate on the outer wall of the sliding sleeve will begin to touch the push rod and push the push rod. When the push rod is pushed, it will rotate hinged on the hinge block A, causing the spring B to deform. Thus, during the pressing and cleaning process, the rotating bristles will first contact the push rod that has not been pushed by the push plate, and the bristles will continuously push the push rod, causing the bristles to bounce back and move with elasticity, thereby achieving real-time self-cleaning of the bristles. At each start and stop, the push plate will return to its original position, and the push rod will then block the bristles and cause the bristles to be moved to complete the fully automatic cleaning work, preventing the bristles from adhering to dust and residue and causing subsequent secondary pollution.

[0062] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A surface treatment device for solar screen printing plates, comprising a built-in motor handle (2), characterized in that: The built-in motor handle (2) is provided with a cleaning mechanism (3) on the outside; The cleaning mechanism (3) includes: A connecting plate (301) is a circular disc structure. A rotating shaft (311) is fixedly connected to the inner wall of the connecting plate (301). One end of the rotating shaft (311) is fixedly connected to the inner wall of the built-in motor handle (2). A turntable (302) is fixedly connected to the outer wall of the connecting plate (301). Brush bristles (303) are fixedly connected to the outer wall of the turntable (302). The connecting plate (301) is used to drive and control the rotation of the turntable (302) by the built-in motor handle (2). A fixed sleeve (304) is fixedly connected to the outer wall of the built-in motor handle (2). A sliding sleeve (305) is slidably connected to the inner wall of the fixed sleeve (304). A fixed ring A (306) is fixedly connected to the outer wall of the sliding sleeve (305). A spring A (307) is fixedly connected to the outer wall of the fixed ring A (306). A fixed ring B (308) is fixedly connected to one end of the spring A (307). The inner wall of the fixed ring B (308) is fixedly connected to the outer wall of the fixed sleeve (304). The outer wall of the rotating shaft (311) is fixedly connected to a fan blade (312), the outer wall of the fixing ring A (306) is fixedly connected to a fixing block (309), and the inner wall of the fixing block (309) is slidably connected to a rotating ball (310). A filter plate (313) is fixedly connected to the outer wall of the fixed ring A (306), a nozzle (314) is fixedly connected to the inner wall of the fixed sleeve (304), a ventilation groove (315) is provided on the inner wall of the fixed sleeve (304), one end of the water pipe (1) is fixedly connected to the outer wall of the fixed sleeve (304), and a scraping mechanism (4) is provided inside the fixed sleeve (304). The scraping mechanism (4) includes a push rod (401), one end of which is rotatably connected to a hinge block A (402). The outer wall of the hinge block A (402) is fixedly connected to the inner wall of the fixed sleeve (304). A spring B (403) is fixedly connected to the outer wall of the hinge block A (402), and one end of the spring B (403) is fixedly connected to the outer wall of the push rod (401).

2. The surface treatment device for solar screen printing according to claim 1, characterized in that: A push plate (404) is fixedly connected to the inner wall of the sliding sleeve (305), and a groove is provided at one end of the push plate (404).

3. The surface treatment device for solar screens according to claim 2, characterized in that: A ring (405) is fixedly connected to the outer wall of the push rod (401). A hinge ball (414) is rotatably connected to the outer wall of the ring (405). A hinge rod (406) is fixedly connected to the outer wall of the hinge ball (414). A hinge block B (407) is hinged to one end of the hinge rod (406). A scraper ring (408) is fixedly connected to the outer wall of the hinge block B (407). The outer wall of the scraper ring (408) is slidably connected to the inner wall of the fixed sleeve (304).

4. The surface treatment device for solar screens according to claim 3, characterized in that: A connecting post (409) is fixedly connected to the outer wall of the fixed sleeve (304). A magnetic ball (411) is fixedly connected to one end of the connecting post (409). A retaining ring (412) is fixedly connected to the outer wall of the connecting post (409). A spring C (410) is fixedly connected to the outer wall of the retaining ring (412). One end of the spring C (410) is fixedly connected to the outer wall of the fixed sleeve (304).

5. A surface treatment apparatus for solar screens according to claim 4, characterized in that: The inner wall of the rotating ball (310) is provided with a magnetic groove (413). The magnetic groove (413) itself is magnetic, and the magnetic ball (411) itself is magnetic. The magnetic poles on the opposite side of the magnetic groove (413) and the magnetic ball (411) are like poles that repel each other.

Citation Information

Patent Citations

  • Cleaning device for solar screen printing plate

    CN217917289U

  • Building equipment for assisting in building wall construction

    CN116138675A