Auxiliary cleaning structure of photovoltaic cleaning robot

Abstract

The invention relates to the technical field of photovoltaic cleaning robots, in particular to an auxiliary cleaning structure of a photovoltaic cleaning robot, which comprises a mounting mechanism and a photovoltaic main body, the photovoltaic main body is mounted at the top end of the mounting mechanism, four groups of universal wheels are mounted at the bottom end of the mounting mechanism, and a driving assembly is mounted at the bottom end of the photovoltaic main body. The bottom side of the driving assembly is provided with the pushing mechanism, the pushing mechanism comprises an upper pushing assembly and a lower pushing assembly, the two sides of the upper pushing assembly and the two sides of the lower pushing assembly are both connected with the cleaning mechanism, and cleaning is conveniently pushed out through a threaded sleeve and a pushing frame capable of achieving bidirectional pushing in the pushing mechanism so that cleaning can be conveniently conducted; the service life is prolonged, the transmission assembly is driven to rotate so that dust on the bottom side can be cleaned conveniently and rapidly, and the conveying belt set and the sweeping frame rotate synchronously so that resources can be saved, and cost can be saved.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic cleaning robots, and in particular to an auxiliary cleaning structure of a photovoltaic cleaning robot. Background Art

[0002] As the global demand for clean energy continues to grow, photovoltaic power generation has been widely used as a sustainable energy solution. However, when photovoltaic panels are exposed to the natural environment for a long time, they will be affected by pollutants such as dust, dirt, and bird droppings, which will reduce their power generation efficiency. In order to solve these problems, photovoltaic cleaning robots have come into being. This robot can automatically walk on the photovoltaic panels and effectively remove pollutants on the panel surface through various cleaning methods such as brush cleaning and vacuuming, thereby improving the power generation efficiency of photovoltaic power stations. At the same time, the photovoltaic cleaning robot also has the characteristics of intelligence, and can autonomously adjust and optimize the cleaning strategy according to different environmental conditions and panel states. For example, the announcement number CN111147011A discloses a cleaning robot bridge track for a photovoltaic tracking bracket, which relates to the application field of the photovoltaic tracking bracket cleaning robot, and includes a first supporting beam, a first sliding sleeve combination, a first fixed hinge combination, a first rotating hinge combination, a second supporting beam, a second sliding sleeve combination, a second fixed hinge combination, and a second rotating hinge combination; the present invention adopts a sliding sleeve connection to ensure that the gap between the two groups of photovoltaic tracking brackets is always connected and does not interfere with the independent operation of the photovoltaic tracking bracket; during the cleaning period of the present invention, the cleaning robot performs the cleaning task according to the actual bridging angle. When the actual cleaning angle is greater than the limit passing angle of the cleaning robot, the robot can rotate normally through the control program after reaching the position to ensure the normal cleaning of the front photovoltaic tracking bracket assembly; when the actual cleaning angle of the present invention is less than the limit passing angle of the cleaning robot, the cleaning robot can pass normally and complete the cleaning task; Although the cleaning mechanism in the prior art can meet the needs of use, it cannot be extended or retracted during use, so its cleaning range is small and it needs to be cleaned back and forth multiple times, which has low efficiency. The existing cleaning walls are small and difficult to support photovoltaics, and the stability is low. At the same time, it is difficult to recycle garbage inside during long-term operation, and it needs to be constantly replaced, which affects its cleaning efficiency and increases the workload. Summary of the invention

[0003] The purpose of the present application is to provide an auxiliary cleaning structure for a photovoltaic cleaning robot, so as to solve the technical problems raised in the above-mentioned background technology that the existing cleaning range is small due to the inability to extend and retract, and the cleaning efficiency is low due to the need for multiple reciprocating cleaning. The existing cleaning wall is small and it is difficult to support the photovoltaics, and the stability is low. At the same time, it is difficult to recycle garbage inside during long-term operation, and constant replacement is required, which affects its cleaning efficiency and increases the workload.

[0004] To achieve this goal, this application adopts the following technical solutions: An auxiliary cleaning structure of a photovoltaic cleaning robot comprises a mounting mechanism and a photovoltaic main body, wherein the photovoltaic main body is mounted on the top of the mounting mechanism; Four sets of universal wheels are installed at the bottom end of the mounting mechanism, a driving assembly is installed at the bottom end of the photovoltaic body, a pushing mechanism is installed on the bottom side of the driving assembly, the pushing mechanism includes an upper pushing assembly and a lower pushing assembly, both sides of the upper pushing assembly and the lower pushing assembly are connected to a cleaning mechanism, the cleaning mechanism includes a cleaning box, a partition plate is fixedly provided inside the cleaning box, a trash can is provided on the right side of the partition plate, and a cleaning assembly is installed on the left side of the partition plate.

[0005] Furthermore, the centers of the four walls of the bottom end of the installation mechanism are all provided with installation grooves, the center of the bottom end of the installation mechanism is provided with an inner groove upward, and the inner groove is extended outward to form an upper extension opening and a lower extension opening.

[0006] Furthermore, the driving assembly comprises a motor, a driving shaft is mounted at the bottom end of the motor, and a lower worm is fixedly arranged on the bottom side of the driving shaft.

[0007] Furthermore, the upper pushing assembly includes a connecting plate, the front and rear ends of the two groups of connecting plates are fixed on the two walls of the upper extension opening, sleeves are fixed in the centers of the two groups of connecting plates, threaded rods are inserted in the centers of the two groups of sleeves, a turbine is fixed in the center of the threaded rod, and threaded sleeves are sleeved on both ends of the threaded rod.

[0008] Furthermore, the front end of the turbine engages with an upper worm, and the upper worm is fixed at the top end of the drive shaft. The drive shaft is inserted in the center of a pad, and the pad is fixed at the bottom side of the front end of the two sets of connecting plates. The bottom end of the drive shaft is connected to a first chain group, and the right side of the first chain group is connected to the upper side of the drive shaft. The outer side of the threaded sleeve is connected to a push frame, and the outer side of the push frame is fixed to the inner wall of the cleaning box.

[0009] Furthermore, the overall structure of the lower pushing assembly is the same as that of the upper pushing assembly, and the turbine of the lower pushing assembly directly engages with the lower worm.

[0010] Furthermore, the cleaning assembly includes a driving box, an upper rotating shaft is installed at the front end of the driving box, the upper rotating shaft is installed at the top of the conveying belt group, a lower rotating shaft is fixed at the bottom end of the conveying belt group, the rear end of the lower rotating shaft is inserted into the rear wall of the cleaning box, and pushing parts are installed at equal distances on the outside of the conveying belt group, the center of the lower rotating shaft is connected to the right side of the conveying assembly, and the front end of the conveying assembly engages with the rear end of the driving cleaning frame.

[0011] Furthermore, the pushing member includes a square block, an inner groove is provided on the front side of the bottom end of the square block, fixed columns are fixed at the centers of the two walls of the inner groove, the fixed column sleeve is provided on the rear side of the rotating plate, and four groups of springs are fixed at the top end of the rotating plate and the bottom end of the inner groove.

[0012] Furthermore, the conveying assembly includes a second chain group, the right side of the second chain group is connected to the center of the lower rotating shaft, the left end of the second chain group is connected to the center of the left rotating shaft, the front end of the left rotating shaft is fixed with transverse bevel teeth, and the rear end of the left rotating shaft is inserted into the rear wall of the cleaning box.

[0013] Furthermore, the cleaning frame includes a fixed plate, which is tilted and fixed on the lower left side of the interior of the cleaning box. A driving rotating rod is inserted into the center of the fixed plate, a cleaning brush is installed on the top of the driving rotating rod, and a longitudinal bevel tooth is fixed at the bottom end of the driving rotating rod. A baffle is provided on the top side of the meshing point between the longitudinal bevel tooth and the transverse bevel tooth.

[0014] Compared with the prior art, this application has the following beneficial effects: The auxiliary cleaning structure of the photovoltaic cleaning robot of the present application is convenient for installing the pushing mechanism by setting the upper extension port and the lower extension port opened in the installation mechanism, which is convenient for extending outward at the same time, and convenient for increasing the cleaning range, saving time and improving efficiency. The driving component makes it easy to drive the pushing mechanism and then extend it. The threaded sleeve and the pushing frame that can be pushed in both directions in the pushing mechanism make it convenient to push out the cleaning mechanism for cleaning, and the recycling is convenient for protection and improves the service life. The cleaning box is divided into two spaces by setting a partition plate, and the cleaning component installed on the left side sends dust and the like into the trash can placed on the inner wall of the right side. The trash can is convenient for cleaning and storing dust for a long time, increasing the use time and reducing the replacement frequency. The pushing piece can send the dust to the upper mouth of the trash can, and after pouring it, it is resisted by the partition plate under the action of the spring and then flipped upward without affecting the subsequent use. The driving rotating rod installed in the center of the cleaning frame is rotated under the drive of the transmission component, so that the dust on the bottom side is cleaned conveniently and quickly. By setting the transmission component, the transmission belt group and the cleaning frame can be rotated synchronously under the linkage of the second chain group, saving resource consumption and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which this application can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by this application, should still fall within the scope of the technical contents disclosed in this application.

[0017] Figure 1 It is a schematic side view of the structure of the present invention; Figure 2 It is a schematic diagram of the main structure of the present invention; Figure 3 It is a cross-sectional schematic diagram of the installation mechanism of the present invention; Figure 4 It is a schematic top view of the pushing mechanism structure of the present invention; Figure 5 It is a schematic cross-sectional view of the push assembly structure of the present invention; Figure 6 This is a schematic diagram of the structure of the drive assembly of the present invention; Figure 7 This is a schematic diagram of the internal structure of the cleaning box of the present invention; Figure 8 It is a top view schematic diagram of the cleaning assembly structure of the present invention; Fig. 9 This is a schematic diagram of the structural connection of the transmission component of the present invention; Fig.10 It is a schematic diagram of the connection of the push member structure of the present invention.

[0018] Illustrations: 1. Mounting frame; 101. Mounting slot; 102. Inner slot; 103. Upper extension port; 104. Lower extension port; 12. Universal wheel; 2. Photovoltaic main body; 21. Driving assembly; 211. Motor; 212. Driving shaft; 213. Lower worm; 22. Pushing mechanism; 221. Upper pushing assembly; 2211. Connecting plate; 2212. Sleeve; 2213. Threaded rod; 2214. Turbine; 2215. Upper worm; 2216. Driving shaft; 2217. Pad; 2218. First chain group; 2219. Threaded sleeve; 22101. Pushing frame; 222. Lower pushing assembly; 3. Cleaning machine Structure; 31. cleaning box; 32. partition plate; 33. garbage bin; 34. cleaning assembly; 341. drive box; 342. upper rotating shaft; 343. transmission belt assembly; 344. lower rotating shaft; 345. pushing member; 3451. square block; 3452. inner groove; 3453. fixed column; 3454. rotating plate; 3455. spring; 346. transmission assembly; 3461. second chain group; 3462. left rotating shaft; 3463. transverse bevel gear; 347. cleaning frame; 3471. fixed plate; 3472. driving rod; 3473. cleaning brush; 3474. longitudinal bevel gear; 3475. baffle. DETAILED DESCRIPTION

[0019] In order to make the purpose, features, and advantages of the invention of this application more obvious and easy to understand, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described below are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0020] In the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0021] The technical solution of the present application is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0022] refer to Figures 1 to 10An embodiment of the present invention provides an auxiliary cleaning structure of a photovoltaic cleaning robot, comprising a mounting mechanism 1 and a photovoltaic main body 2, wherein the photovoltaic main body 2 is mounted on the top of the mounting mechanism 1, and four sets of universal wheels 12 are mounted on the bottom of the mounting mechanism 1, and a driving component 21 is mounted on the bottom of the photovoltaic main body 2, and a pushing mechanism 22 is mounted on the bottom side of the driving component 21, and the pushing mechanism 22 comprises an upper pushing component 221 and a lower pushing component 222, and both sides of the upper pushing component 221 and the lower pushing component 222 are connected to a cleaning mechanism 3, and the cleaning mechanism 3 comprises a cleaning box 31, and a partition plate 32 is fixedly arranged inside the cleaning box 31, a trash bin 33 is arranged on the right side of the partition plate 32, and a cleaning component 34 is installed on the left side of the partition plate 32.

[0023] In one embodiment, the four walls at the bottom of the installation mechanism 1 are centrally provided with installation grooves 101, the bottom center of the installation mechanism 1 is upwardly provided with an inner groove 102, and the inner groove 102 is respectively extended outwardly to form an upper extension opening 103 and a lower extension opening 104, so as to facilitate the installation of the cleaning mechanism.

[0024] In one embodiment, the driving assembly 21 includes a motor 211, a driving shaft 212 is installed at the bottom end of the motor 211, and a lower worm 213 is fixed to the bottom side of the driving shaft 212 to facilitate driving the upper pushing assembly and the lower pushing assembly to move.

[0025] In one embodiment, the upper push assembly 221 includes a connecting plate 2211, the front and rear ends of the two groups of connecting plates 2211 are fixedly arranged on the two walls of the upper extension opening 103, the centers of the two groups of connecting plates 2211 are fixedly provided with sleeves 2212, the centers of the two groups of sleeves 2212 are inserted with threaded rods 2213, the centers of the threaded rods 2213 are fixedly provided with turbines 2214, both ends of the threaded rods 2213 are sleeved with threaded sleeves 2219, the front end of the turbine 2214 is engaged with an upper worm 2215, and the upper worm 2215 is fixedly arranged on the drive shaft 2 The top of 216, the driving shaft 2216 is inserted in the center of the pad 2217, the pad 2217 is fixed on the bottom side of the front end of the two groups of connecting plates 2211, the bottom end of the driving shaft 2216 is connected to the first chain group 2218, the right side of the first chain group 2218 is connected to the upper side of the driving shaft 212, the outer side of the threaded sleeve 2219 is connected to the pushing frame 22101, the outer side of the pushing frame 22101 is fixed on the inner wall of the cleaning box 31, which is convenient for pushing out the cleaning mechanism for cleaning, recycling and protection to increase the service life.

[0026] In one embodiment, the overall structure of the lower pushing assembly 222 is the same as that of the upper pushing assembly 221 , and the turbine 2214 of the lower pushing assembly 222 directly engages with the lower worm 213 , and pushes out the four cleaning mechanisms at the same time, thereby improving efficiency.

[0027] In one embodiment, the cleaning component 34 includes a driving box 341, the front end of the driving box 341 is installed with an upper rotating shaft 342, the upper rotating shaft 342 is installed with the top of the conveying belt group 343, the bottom end of the conveying belt group 343 is fixed with a lower rotating shaft 344, the rear end of the lower rotating shaft 344 is inserted into the rear wall of the cleaning box 31, and the outer side of the conveying belt group 343 is evenly installed with a pushing member 345, the center of the lower rotating shaft 344 is connected to the right side of the conveying component 346, and the front end of the conveying component 346 engages with the rear end of the driving cleaning frame 347 to facilitate the cleaning and storage of dust.

[0028] In one embodiment, the pushing member 345 includes a square block 3451, and an inner groove 3452 is provided on the front side of the bottom end of the square block 3451. Fixed columns 3453 are fixed at the centers of the two walls of the inner groove 3452. The fixed columns 3453 are sleeved on the rear inner side of a rotating plate 3454. Four groups of springs 3455 are fixed at the top of the rotating plate 3454 and the bottom of the inner groove 3452 to facilitate quick and convenient transportation.

[0029] In one embodiment, the conveying component 346 includes a second chain group 3461, the right side of the second chain group 3461 is connected to the center of the lower rotating shaft 344, the left end of the second chain group 3461 is connected to the center of the left rotating shaft 3462, the front end of the left rotating shaft 3462 is fixed with a transverse bevel gear 3463, and the rear end of the left rotating shaft 3462 is inserted into the rear wall of the cleaning box 31, so that the conveying belt group and the cleaning frame can be rotated synchronously to save resource consumption and save costs.

[0030] In one embodiment, the cleaning frame 347 includes a fixed plate 3471, which is tilted and fixed on the lower left side of the interior of the cleaning box 31. A driving rod 3472 is inserted into the center of the fixed plate 3471, and a cleaning brush 3473 is installed on the top of the driving rod 3472. A longitudinal bevel tooth 3474 is fixed at the bottom end of the driving rod 3472. A baffle 3475 is provided on the top side of the meshing point between the longitudinal bevel tooth 3474 and the transverse bevel tooth 3463. The dust is swept into the interior by a soft cleaning brush, which facilitates the transmission belt group to send the dust into the trash can for long-term use.

[0031] In one embodiment of a scenario, during operation, when cleaning is required, the motor 211 is first started to drive the driving shaft 212 installed on the bottom side to rotate. The driving shaft 212 rotates to drive the first chain group 2218 and the lower worm 213 installed at the bottom to rotate, and then drives the upper pushing assembly 221 and the lower pushing assembly 222 to push outward. When the first chain group 2218 rotates, it can drive the connected driving shaft 2216 to rotate at the center of the pad 2217. The driving shaft 2216 rotates to drive the upper worm 221 fixed at the top. 5 is rotated, the upper worm 2215 rotates to engage with the turbine 2214 at the rear side to rotate, the turbine 2214 rotates at the center of the threaded rod 2213 to move the threaded sleeves 2219 on both sides outward, the movement of the threaded sleeves 2219 can push the fixed pushing frame 22101 to push the cleaning box 31 outward, when the four groups of cleaning boxes 31 are pushed to the outside, the driving box 341 can be powered on to start, the driving box 341 drives the installed upper rotating shaft 344 to rotate, and the upper rotating shaft 344 rotates to drive the installed The transmission belt group 343 drives the lower rotating shaft 344 inserted at the bottom to rotate. When the lower rotating shaft 344 rotates, the left rotating shaft 3462 on the left side can be driven to rotate through the second chain group 3461. The rotation of the left rotating shaft 3462 can drive the transverse bevel gear 3463 fixed at the front end to rotate and engage the longitudinal bevel gear 3474 to rotate. The rotation of the longitudinal bevel gear 3474 can drive the driving rod 3472 to rotate at the center of the fixed plate 3471. The rotation of the driving rod 3472 can drive the cleaning brush 3473 fixed at the top. The dust is then swept to the top of the rotating plate 3454 in the pushing piece 345 fixed to the outside of the conveyor belt group 343 through the notch opened on the lower left side of the cleaning box 31. The dust is sent to the top of the trash can 33 under the rotation of the conveyor belt group 343, and the dust falls. When the rotating plate 3454 descends and presses against the partition plate 32, it rotates upward under the elastic force of the spring 3455. When the conveyor belt group 343 drives the square block 3451 to descend to the bottom side, the rotating plate 3454 returns to its original position under the elastic force of the spring 3455 to facilitate the next dust collection.

[0032] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An auxiliary cleaning structure of a photovoltaic cleaning robot, characterized in that: It comprises a mounting mechanism and a photovoltaic main body, wherein the photovoltaic main body is mounted on the top of the mounting mechanism; Four sets of universal wheels are installed at the bottom end of the mounting mechanism, a driving assembly is installed at the bottom end of the photovoltaic body, a pushing mechanism is installed on the bottom side of the driving assembly, the pushing mechanism includes an upper pushing assembly and a lower pushing assembly, both sides of the upper pushing assembly and the lower pushing assembly are connected to a cleaning mechanism, the cleaning mechanism includes a cleaning box, a partition plate is fixedly provided inside the cleaning box, a trash can is provided on the right side of the partition plate, and a cleaning assembly is installed on the left side of the partition plate.

2. The auxiliary cleaning structure of a photovoltaic cleaning robot according to claim 1, characterized in that: The centers of the four walls at the bottom of the installation mechanism are all provided with installation grooves, the center of the bottom of the installation mechanism is upwardly provided with an inner groove, and the inner groove is respectively extended outward to form an upper extension opening and a lower extension opening.

3. The auxiliary cleaning structure of a photovoltaic cleaning robot according to claim 1, characterized in that: The driving assembly comprises a motor, a driving shaft is mounted on the bottom end of the motor, and a lower worm is fixed on the bottom side of the driving shaft.

4. The auxiliary cleaning structure of a photovoltaic cleaning robot according to claim 1, characterized in that: The upper pushing assembly includes a connecting plate, and the front and rear ends of the two groups of connecting plates are fixed on the two walls of the upper extension opening. A sleeve is fixed at the center of the two groups of connecting plates, and a threaded rod is inserted at the center of the two groups of sleeves. A turbine is fixed at the center of the threaded rod, and threaded sleeves are sleeved at both ends of the threaded rod.

5. The auxiliary cleaning structure of a photovoltaic cleaning robot according to claim 4, characterized in that: The front end of the turbine engages with the upper worm, and the upper worm is fixed to the top of the driving shaft. The driving shaft is inserted in the center of the pad, and the pad is fixed to the bottom side of the front end of the two sets of connecting plates. The bottom end of the driving shaft is connected to the first chain group, and the right side of the first chain group is connected to the upper side of the driving shaft. The outer side of the threaded sleeve is connected to the pushing frame, and the outer side of the pushing frame is fixed to the inner wall of the cleaning box.

6. The auxiliary cleaning structure of a photovoltaic cleaning robot according to claim 1, characterized in that: The overall structure of the lower pushing assembly is the same as that of the upper pushing assembly, and the turbine of the lower pushing assembly directly meshes with the lower worm.

7. The auxiliary cleaning structure of a photovoltaic cleaning robot according to claim 1, characterized in that: The cleaning assembly includes a driving box, an upper rotating shaft is installed at the front end of the driving box, the upper rotating shaft is installed with the top of the conveying belt group, a lower rotating shaft is fixed at the bottom end of the conveying belt group, the rear end of the lower rotating shaft is inserted into the rear wall of the cleaning box, and pushing pieces are installed at equal distances on the outside of the conveying belt group, the center of the lower rotating shaft is connected to the right side of the conveying assembly, and the front end of the conveying assembly engages with the rear end of the driving cleaning frame.

8. The auxiliary cleaning structure of a photovoltaic cleaning robot according to claim 7, characterized in that: The pushing member includes a square block, an inner groove is provided on the front side of the bottom end of the square block, fixed columns are fixedly provided at the centers of the two walls of the inner groove, the fixed columns are sleeved on the rear inner side of the rotating plate, and four groups of springs are fixedly provided at the top end of the rotating plate and the bottom end of the inner groove.

9. The auxiliary cleaning structure of a photovoltaic cleaning robot according to claim 7, characterized in that: The conveying assembly includes a second chain group, the right side of the second chain group is connected to the center of the lower rotating shaft, the left end of the second chain group is connected to the center of the left rotating shaft, the front end of the left rotating shaft is fixed with transverse bevel teeth, and the rear end of the left rotating shaft is inserted into the rear wall of the cleaning box.

10. The auxiliary cleaning structure of a photovoltaic cleaning robot according to claim 7, characterized in that: The cleaning frame includes a fixed plate, which is tilted and fixed on the lower left side of the interior of the cleaning box. A driving rotating rod is inserted into the center of the fixed plate, a cleaning brush is installed on the top of the driving rotating rod, and a longitudinal bevel tooth is fixed on the bottom end of the driving rotating rod. A baffle is provided on the top side of the meshing point between the longitudinal bevel tooth and the transverse bevel tooth.

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