An intelligent explosion-proof shoe washing machine

By designing an intelligent explosion-proof shoe washing machine, the rotation device driven by the air press and the adjustable cleaning force are used, combined with the soft rubber stroke rod and fixed tube to deform the shoes, the shoe shape is automatically fitted and cleaned. Adjustment solves the problem that existing shoe washing machines cannot fully fit and automatically clean, improves cleaning effect and stability, and realizes automatic cleaning and labor liberation of the inside of the shoes.

CN114052618BActive Publication Date: 2025-02-25HEBEI SHANBAO ENVIRONMENTAL ENG CO LTD
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Patent Information

Application Number
CN202010789790.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-08-07
Publication Date
2025-02-25
Estimated Expiration
2040-08-07

AI Technical Summary

Technical Problem

The existing shoe washing machines cannot fully fit the outer surface of the shoe, so they need to manually adjust the posture of the shoe and cannot automatically clean the inside of the shoe, resulting in the inability to achieve complete automation and labor liberation.

Method used

An intelligent explosion-proof shoe washing machine is designed, using a rotating device driven by a pneumatic press and an adjustable cleaning force. The shoe is deformed and fitted through the stroke rod and fixed tube of soft rubber, and the piston plate is driven by a pressure limiting valve and air guide tube. Synchronous movement with the stroke sheet realizes automatic swing and cleaning of the brush.

Benefits of technology

It realizes the self-fitting of the shoe shape and automatic adjustment of the cleaning force, avoids the shortcomings of traditional shoe washing machines, improves the cleaning effect and stability, and realizes automatic cleaning of the inside of the shoe, achieving complete automation and labor liberation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the technical field of clothing cleaning, and discloses an intelligent explosion-proof shoe washing machine, which is fixedly installed by one end of a fixed tube and one end of a sealing sleeve, and the position of a limiting hole corresponds to the position of the washing bristles and the washing bristles extend from the limiting hole. The root of the washing bristles connected to the travel plate will move synchronously with the travel rod, and the top of the washing bristles will move in the opposite direction of the axial direction of the travel rod under the obstruction of the limiting hole, thereby producing a washing effect, and the power of the washing is derived from the pressure difference on both sides of the travel plate, rather than directly from the transmission structure, so that when the washing bristles and the shoes fit more closely, the friction effect between them is greater, and the travel plate automatically reduces the moving distance under the action of the pressure difference, thereby reducing the swing amplitude of the top of the washing bristles, avoiding the situation in which the swing amplitude of the top of the washing bristles remains unchanged and the leather material on the outer surface of the shoe is scratched, thereby improving the stability of the device when working.
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Description

Technical Field

[0001] The invention relates to the technical field of clothing cleaning, and in particular to an intelligent explosion-proof shoe washing machine. Background Art

[0002] With the advancement of science and technology, people have begun to look for ways to use machines to replace manual labor in various aspects, thereby liberating labor. Among them, the shoe washing machine is a machine produced on this basis. Usually a power machine or a pneumatic device is used to drive the rotating structure to clean the outer surface of the shoe. This method has a simple structure, is easy to operate, and is relatively cheap, but it still has limitations in the process of washing shoes.

[0003] Since the shapes of shoes are different, a simple roller cannot completely fit the outer surface of the shoe. The position of the shoe needs to be constantly adjusted to clean the outer surface of the shoe, so it is still impossible to completely get rid of manual labor. In addition, the diameter of the roller is large and cannot reach into the inside of the shoe for cleaning. As a result, the device still needs manual cleaning of the inside of the shoe after cleaning the shoe, making it impossible for the device to achieve full automation and thus unable to achieve the purpose of liberating labor. In this regard, the present application document proposes an intelligent explosion-proof shoe washing machine to solve the above-mentioned problems. Summary of the invention

[0004] In view of the shortcomings of the existing shoe washing machines mentioned in the background technology during use, the present invention provides an intelligent explosion-proof shoe washing machine, which has the advantages of being able to automatically fit the shape of the shoes and the cleaning force can be automatically adjusted according to the fitting force, solving the problem that traditional shoe washing machines cannot achieve complete fitting using a drum and require manual adjustment of the posture of the shoes.

[0005] The present invention provides the following technical solution: an intelligent explosion-proof shoe washing machine comprises a power chamber, a cushion block is fixedly installed at the bottom of the inner cavity of the power chamber, an air compressor is fixedly installed on the top of the cushion block, a pressure limiting valve is fixedly installed on one end of the air compressor output port, an air duct is fixedly installed on the top of the pressure limiting valve, a bending part of the outer surface of the air duct is fixedly sleeved with a bending protective sleeve, one end of the air duct is movably sleeved with a sealing connector, one end of the sealing connector is fixedly sleeved with an anti-degassing port, one end of the anti-degassing port is fixedly sleeved with a rotating device, a piston plate is movably sleeved at a position of the inner cavity of the rotating device on one side of the anti-degassing port, a sealing sleeve is fixedly installed at one end of the rotating device, a cleaning device is movably adjusted at a position of the rotating device on one side of the piston plate, a swing device is fixedly installed at one end of the sealing sleeve, and a cleaning chamber is fixedly installed on one side of the power chamber.

[0006] Preferably, the rotating device includes a sleeve, the inner wall of the sleeve is fixedly sleeved with a spiral rod, and the number of the spiral rods is two, the shape of the spiral rod is spiral, and a limiting block is fixedly installed on the inner wall of the sleeve at one end of the spiral rod, and the cleaning device cooperates with the spiral rod in the sleeve.

[0007] Preferably, the cleaning device includes a travel plate, the outer surface of which is provided with a semicircular groove and the semicircular groove cooperates with the spiral rod in the sleeve, a travel rod is fixedly installed at one end of the travel plate, the travel rod is made of soft rubber, and the outer surface of the travel rod is fixedly sleeved with washing bristles, and the washing bristles extend from the inside of the swing device.

[0008] Preferably, the swinging device includes a fixed tube, the material of the fixed tube is soft rubber, one end of the fixed tube is fixedly installed with one end of the sealing sleeve, a limiting hole is opened on the outer surface of the fixed tube, the position of the limiting hole corresponds to the position of the washing bristles and the washing bristles extend out of the limiting hole, and a bending limiting device is fixedly installed at a position on the outer surface of the fixed tube between the limiting holes.

[0009] Preferably, the bending limit device includes an outer ring, an inner ring is fixedly installed inside the outer ring, the inner surface of the inner ring is fixedly connected to the outer surface of the fixed tube, anti-touch holes are opened at both ends of the outer ring and the positions of the anti-touch holes correspond to the limiting holes, and the diameter of the anti-touch holes is larger than the diameter of the limiting hole.

[0010] The present invention has the following beneficial effects:

[0011] 1. The present invention adopts a travel rod made of soft rubber and a fixed tube made of soft rubber, so that the travel rod and the fixed tube can be deformed and fitted by themselves according to the shape of the shoe, thereby avoiding the problem that the traditional drum-type cleaning structure cannot completely fit the surface of the shoe. At the same time, an air guide tube is fixedly installed on the top of the pressure limiting valve, and a bending protective sleeve is fixedly sleeved on the bending part of the outer surface of the air guide tube. A sealing connector is movably sleeved on one end of the air guide tube, and an anti-degassing port is fixedly sleeved on one end of the sealing connector. The air compressor changes the air pressure on one side of the piston plate in the rotating device through the air guide tube, thereby driving the piston plate to reciprocate inside the rotating device. When the piston plate moves to the right side in the figure driven by the anti-degassing port, the volume cavity between the rotating device and the piston plate becomes larger and the air pressure is reduced, so that a pressure difference appears on both sides of the travel plate, and the travel plate and the piston plate are synchronized under the action of the pressure difference. The shoe is then moved so that the travel rod is driven to move, and at this time, the travel rod is fixedly installed through one end of the fixed tube and one end of the sealing sleeve. At the same time, the position of the limiting hole corresponds to the position of the brush hair and the brush hair extends out of the limiting hole, so that the root of the brush hair and the part connected to the travel plate will move synchronously with the travel rod, and the top of the brush hair will move in the opposite direction of the axial direction of the travel rod under the obstruction of the limiting hole, thereby producing a brushing effect, and the power for brushing comes from the pressure difference on both sides of the travel plate, rather than directly from the transmission structure, so that when the brush hair fits closely to the shoe, the friction effect between them is greater, and the travel plate automatically reduces the moving distance under the action of the pressure difference, thereby reducing the swing amplitude of the top of the brush hair, avoiding the situation in which the leather material on the outer surface of the shoe is scratched due to the unchanged swing amplitude of the top of the brush hair, thereby improving the stability of the device when it is working.

[0012] 2. The present invention provides a semicircular groove on the outer surface of the travel plate, and the semicircular groove cooperates with the spiral rod in the sleeve, and the shape of the spiral rod is spiral, so that when the travel plate moves inside the rotating device, it will rotate along the spiral rod and drive the travel rod to rotate synchronously, so that the root of the washing bristles will rotate with the rotation of the travel rod, and the top of the washing bristles will be in the opposite direction and swing along the circumferential direction of the travel rod, thereby further enhancing the cleaning effect, thereby improving the cleaning effect of the device on shoes.

[0013] 3. The present invention fixes a bending limit device on the position between the limit holes on the outer surface of the fixed tube and the inner surface of the inner ring is fixedly connected to the outer surface of the fixed tube, so that there is a certain distance between the wider outer ring and the fixed tube, so that when the fixed tube is bent along the curvature of the shoe surface, when the bending degree is too large, the fixed tubes on both sides will contact each other, thereby preventing the fixed tube from further bending at this location, thereby avoiding the fixed tube from bending beyond the limit at a certain location and causing the inner diameter to change too much, resulting in the travel rods inside the fixed tube contacting and squeezing each other, thereby generating huge friction and causing the travel of the travel rod to be blocked, thereby improving the stability of the device. At the same time, anti-touch holes are opened at both ends of the outer ring and the positions of the anti-touch holes correspond to the limit holes. The diameter of the anti-touch holes is larger than the diameter of the limit holes, so that when the bending limit devices are fitted together, there will be no obstruction to the swing of the brush hairs, avoiding the problem of clamping the brush hairs when the bending limit devices are fitted together, making it impossible for the brush hairs to swing and lose the brushing effect, and further improving the working stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention;

[0015] Figure 2 It is a schematic cross-sectional view of the structure of the present invention;

[0016] Figure 3 The structure of the present invention Figure 2 The enlarged schematic diagram at A in the middle;

[0017] Figure 4 It is a schematic diagram of the structural rotating device of the present invention;

[0018] Figure 5 It is a schematic diagram of the structural cleaning device of the present invention;

[0019] Figure 6 It is a right side schematic diagram of the structural cleaning device of the present invention;

[0020] Figure 7 It is a schematic diagram of the structural swing device of the present invention;

[0021] Figure 8 It is a schematic front view of the structural swing device of the present invention;

[0022] Fig. 9 It is a schematic diagram of the structural bending limit device of the present invention;

[0023] Fig.10 It is a cross-sectional schematic diagram of the structural bending limit device of the present invention.

[0024] In the figure: 1. power room; 2. cushion block; 3. air compressor; 4. pressure limiting valve; 5. air guide pipe; 6. protective cover for bend; 7. sealing connector; 8. anti-degassing port; 9. piston plate; 10. rotating device; 101. sleeve; 102. screw rod; 103. limit block; 11. sealing sleeve; 12. cleaning device; 121. travel plate; 122. travel rod; 123. washing brush; 13. swinging device; 131. fixed tube; 132. limit hole; 133. bending limit device; 1331. outer ring; 1332. inner ring; 1333. anti-touch hole; 14. cleaning room. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-10A smart explosion-proof shoe washing machine comprises a power chamber 1, a cushion block 2 is fixedly installed at the bottom of the inner cavity of the power chamber 1, an air compressor 3 is fixedly installed on the top of the cushion block 2, a pressure limiting valve 4 is fixedly installed at one end of the output port of the air compressor 3, an air guide pipe 5 is fixedly installed on the top of the pressure limiting valve 4, a bending part of the outer surface of the air guide pipe 5 is fixedly sleeved with a bending protection sleeve 6, one end of the air guide pipe 5 is movably sleeved with a sealing connector 7, one end of the sealing connector 7 is fixedly sleeved with an anti-degassing port 8, one end of the anti-degassing port 8 is fixedly sleeved with a rotating device 10, a piston sheet 9 is movably sleeved at a position on one side of the anti-degassing port 8 at the inner cavity of the rotating device 10, and the rotating device 10 is movably sleeved with a piston sheet 9. The device 10 includes a sleeve 101, the inner wall of the sleeve 101 is fixedly sleeved with a spiral rod 102, and the number of the spiral rods 102 is two, the shape of the spiral rod 102 is spiral, the inner wall of the sleeve 101 is located at the position of one end of the spiral rod 102, and a limited block 103 is fixedly installed, the spiral rod 102 in the sleeve 101 cooperates with the cleaning device 12, a sealing sleeve 11 is fixedly installed at one end of the rotating device 10, and the interior of the rotating device 10 is located at a position on one side of the piston plate 9 and is movably adjusted with a cleaning device 12, and the cleaning device 12 includes a travel plate 121, and the outer surface of the travel plate 121 is provided with a semicircular groove and the semicircular groove In cooperation with the spiral rod 102 in the sleeve 101, a travel rod 122 is fixedly installed at one end of the travel sheet 121. The material of the travel rod 122 is soft rubber. The outer surface of the travel rod 122 is fixedly sleeved with a washing bristle 123. The washing bristle 123 extends from the inside of the swing device 13. A swing device 13 is fixedly installed at one end of the sealing sleeve 11. The swing device 13 includes a fixed tube 131. The material of the fixed tube 131 is soft rubber. One end of the fixed tube 131 is fixedly installed with one end of the sealing sleeve 11. A limiting hole 132 is provided on the outer surface of the fixed tube 131. The position of the limiting hole 132 is consistent with the position of the washing bristle 123. The brush bristles 123 extend from the limiting holes 132, and a bending limiting device 133 is fixedly installed on the outer surface of the fixed tube 131 at a position between the limiting holes 132. The bending limiting device 133 includes an outer ring 1331, and an inner ring 1332 is fixedly installed inside the outer ring 1331. The inner surface of the inner ring 1332 is fixedly connected to the outer surface of the fixed tube 131, and anti-touch holes 1333 are provided at both ends of the outer ring 1331 and the positions of the anti-touch holes 1333 correspond to the limiting holes 132, and the diameter of the anti-touch holes 1333 is larger than the diameter of the limiting holes 132. A cleaning chamber 14 is fixedly installed on one side of the power chamber 1.

[0027] Among them, the material of the stroke rod 122 is soft rubber and the material of the fixed tube 131 is soft rubber, so that the stroke rod 122 and the fixed tube 131 can deform and fit according to the shape of the shoe, thereby avoiding the problem that the traditional drum-type cleaning structure cannot completely fit the surface of the shoe. At the same time, an air guide tube 5 is fixedly installed on the top of the pressure limiting valve 4, and a bending protective sleeve 6 is fixedly sleeved on the bending part of the outer surface of the air guide tube 5. One end of the air guide tube 5 is movably sleeved with a sealing connector 7, and one end of the sealing connector 7 is fixedly sleeved with an anti-degassing port 8. When the air compressor 3 drives the pressure limiting valve 4 to rotate, the transmission effect of the air guide tube 5, the bending protective sleeve 6, the sealing connector 7 and the anti-degassing port 8 can be used to drive the piston plate 9 to reciprocate inside the rotating device 10. When the piston plate 9 is driven by the anti-degassing port 8 to move back and forth Figure 2 When the right side of the travel plate 121 moves, the volume cavity between the rotating device 10 and the piston plate 9 becomes larger and the air pressure is reduced, so that a pressure difference appears on both sides of the travel plate 121 and the travel plate 121 and the piston plate 9 move synchronously under the action of the pressure difference, thereby driving the travel rod 122 to move. At this time, one end of the fixing tube 131 is fixedly installed with one end of the sealing sleeve 11, and the position of the limiting hole 132 corresponds to the position of the washing hair 123 and the washing hair 123 extends out of the limiting hole 132, so that the root of the washing hair 123 and the part connected to the travel plate 121 will move synchronously with the travel rod 122, and the washing hair 123 The top of the travel rod 122 moves in the opposite axial direction under the obstruction of the limiting hole 132, thereby producing a brushing effect, and the power of the brushing comes from the pressure difference on both sides of the travel plate 121, rather than directly from the transmission structure, so that when the brushing hairs 123 fit closely to the shoes, the friction effect between them is greater, and the moving distance of the travel plate 121 under the action of the pressure difference is reduced by itself, thereby reducing the swing amplitude of the top of the brushing hairs 123, avoiding the situation in which the leather material on the outer surface of the shoe is scratched due to the unchanged swing amplitude of the top of the brushing hairs 123, thereby improving the stability of the device during operation.

[0028] Among them, a semicircular groove is opened on the outer surface of the travel plate 121 and the semicircular groove cooperates with the spiral rod 102 in the sleeve 101 and the shape of the spiral rod 102 is spiral, so that when the travel plate 121 moves inside the rotating device 10, it will rotate along the spiral rod 102 and drive the travel rod 122 to rotate synchronously, so that the root of the washing bristles 123 will rotate with the rotation of the travel rod 122, and the top of the washing bristles 123 will be in the opposite direction and swing along the circumferential direction of the travel rod 122, thereby further enhancing the cleaning effect, thereby improving the cleaning effect of the device on shoes.

[0029] The bending limit device 133 is fixedly installed at the position between the limit holes 132 on the outer surface of the fixing tube 131, and the inner surface of the inner ring 1332 is fixedly connected to the outer surface of the fixing tube 131, so that there is a certain distance between the wider outer ring 1331 and the fixing tube 131, so that when the fixing tube 131 is bent along the curvature of the shoe surface, when the bending degree is too large, the fixing tubes 131 on both sides will contact each other, thereby preventing the fixing tube 131 from further bending at this point, thereby avoiding the fixing tube 131 from bending beyond the limit at a certain point and causing the inner diameter to change too much, resulting in the travel rods 122 inside the fixing tube 131 being mutually bent. The contact and squeezing generate huge friction force, which causes the travel of the travel rod 122 to be blocked, thereby improving the stability of the device. At the same time, anti-touch holes 1333 are opened at both ends of the outer ring 1331 and the positions of the anti-touch holes 1333 correspond to the limiting holes 132. The diameter of the anti-touch holes 1333 is larger than the diameter of the limiting holes 132, so that when the bending limit devices 133 are fitted together, there will be no obstruction to the swing of the washing bristles 123, avoiding the problem of clamping the washing bristles 123 when the bending limit devices 133 are fitted together, making it impossible for the washing bristles 123 to swing and lose the washing effect, further improving the working stability of the device.

[0030] The method of use of the present invention is as follows:

[0031] When in use, the travel rod 122 and the fixing tube 131 can deform and fit according to the shape of the shoe. At the same time, the air compressor 4 drives the piston plate 9 to reciprocate inside the rotating device 10 through the air guide pipe 5. When the piston plate 9 is driven by the anti-degassing port 8 to Figure 2When the travel piece 121 moves to the right side in the middle, the volume cavity between the rotating device 10 and the piston plate 9 becomes larger and the air pressure is reduced, so that a pressure difference appears on both sides of the travel piece 121 and the travel piece 121 moves synchronously with the piston plate 9 under the action of the pressure difference, thereby driving the travel rod 122 to move, so that the root of the washing bristle 123 connected to the travel piece 121 will move synchronously with the travel rod 122, and the top of the washing bristle 123 will move in the opposite direction of the axial direction of the travel rod 122 under the obstruction of the limiting hole 132, thereby producing a washing effect. When the travel piece 121 moves inside the rotating device 10, the travel piece 121 will The spiral rod 102 rotates and drives the travel rod 122 to rotate synchronously, so that the roots of the washing bristles 123 rotate with the rotation of the travel rod 122, and the tops of the washing bristles 123 are in the opposite direction and swing along the circumferential direction of the travel rod 122. When the fixed tube 131 bends along the curvature of the shoe surface, when the bending degree is too large, the fixed tubes 131 on both sides will contact each other, thereby preventing the fixed tube 131 from further bending at this point. The diameter of the anti-touch hole 1333 is larger than the diameter of the limiting hole 132, so that when the bending limit devices 133 fit together, they will not hinder the swing of the washing bristles 123.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent explosion-proof shoe washing machine, comprising a power chamber (1), characterized in that: A cushion block (2) is fixedly mounted on the bottom of the inner cavity of the power chamber (1), an air compressor (3) is fixedly mounted on the top of the cushion block (2), a pressure limiting valve (4) is fixedly mounted on one end of the output port of the air compressor (3), an air guide tube (5) is fixedly mounted on the top of the pressure limiting valve (4), a bend protection sleeve (6) is fixedly sleeved on the bend of the outer surface of the air guide tube (5), one end of the air guide tube (5) is movably sleeved on a sealing connector (7), one end of the sealing connector (7) is fixedly sleeved on an anti-degassing port (8), and the anti-degassing port (8) is fixedly sleeved on the outer surface of the air guide tube (5). A rotating device (10) is fixedly sleeved at one end of the degassing port (8); a piston plate (9) is movably sleeved at a position of an inner cavity of the rotating device (10) located on one side of the anti-degassing port (8); a sealing sleeve (11) is fixedly mounted at one end of the rotating device (10); a cleaning device (12) is movably adjusted at a position of an inner portion of the rotating device (10) located on one side of the piston plate (9); a swing device (13) is fixedly mounted at one end of the sealing sleeve (11); and a cleaning chamber (14) is fixedly mounted at one side of the power chamber (1); The rotating device (10) comprises a sleeve (101), the inner wall of the sleeve (101) is fixedly sleeved with a spiral rod (102), the number of the spiral rods (102) is two, the outer shape of the spiral rod (102) is spiral, a limit block (103) is fixedly mounted on the inner wall of the sleeve (101) at a position at one end of the spiral rod (102), and the cleaning device (12) cooperates with the spiral rod (102) in the sleeve (101); The cleaning device (12) comprises a travel plate (121), the outer surface of the travel plate (121) is provided with a semicircular groove and the semicircular groove cooperates with the spiral rod (102) in the sleeve (101), one end of the travel plate (121) is fixedly mounted with a travel rod (122), the material of the travel rod (122) is soft rubber, the outer surface of the travel rod (122) is fixedly sleeved with washing bristles (123), and the washing bristles (123) extend from the inside of the swing device (13); The swing device (13) comprises a fixed tube (131), the fixed tube (131) is made of soft rubber, one end of the fixed tube (131) is fixedly mounted to one end of the sealing sleeve (11), a limiting hole (132) is provided on the outer surface of the fixed tube (131), the position of the limiting hole (132) corresponds to the position of the washing bristles (123) and the washing bristles (123) extend from the limiting hole (132), and a bending limiting device (133) is fixedly mounted on the outer surface of the fixed tube (131) at a position between the limiting holes (132).

2. The intelligent explosion-proof shoe washing machine according to claim 1 is characterized in that: The bending limit device (133) comprises an outer ring (1331), an inner ring (1332) is fixedly installed inside the outer ring (1331), the inner surface of the inner ring (1332) is fixedly connected to the outer surface of the fixed tube (131), anti-touch holes (1333) are provided at both ends of the outer ring (1331), and the positions of the anti-touch holes (1333) correspond to the limit holes (132), and the diameter of the anti-touch holes (1333) is larger than the diameter of the limit holes (132).

Citation Information

Patent Citations

  • Intelligent explosion-proof shoe washing machine

    CN212281280U