Intelligent garbage room capable of achieving classified collection, automatic weighing, point conversion and exchange

By designing intelligent garbage rooms and using technologies such as hazardous waste disposal institutions and ventilation systems, problems such as different forms of domestic waste and the classification habits have not been formed, automatic classification and weighing of garbage have been achieved, and processing efficiency and safety have been improved.

CN119796734APending Publication Date: 2025-04-11TAIZHOU YICHENG ENVIRONMENTAL PROTECTION TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202510011715.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-05
Publication Date
2025-04-11

AI Technical Summary

Technical Problem

Domestic waste has different forms and stacking and adhesion. The existing technology rarely uses control robotic arms to combine image monitoring technology for garbage sorting. The management and environmental protection publicity of residential communities are insufficient, resulting in the failure of garbage classification models and habits.

Method used

Design an intelligent garbage room, including the roof panel and the shell, with a hazardous waste disposal mechanism on the outer periphery of the shell, which can sort and weigh garbage through the discharge port, discharge port, inlet port and detector, and combine the ventilation system and hydraulic cylinder technologies to ensure safe and effective garbage disposal.

Benefits of technology

It realizes automatic classification and weighing of garbage, ensures that hazardous waste is properly disposed of, avoids human errors, improves the safety and efficiency of garbage disposal, and promotes awareness and habits of garbage sorting.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119796734A_ABST
    Figure CN119796734A_ABST
Patent Text Reader

Abstract

The invention relates to the technical field of garbage classification, in particular to an intelligent garbage room capable of achieving classified collection, automatic weighing, point conversion and exchange, the intelligent garbage room comprises a top plate and a shell, the top plate is fixedly connected with the shell, a harmful garbage treatment mechanism is arranged on the peripheral surface of the shell, and through a discharging port and a discharging port formed in the outer wall of the shell, the harmful garbage treatment mechanism is arranged in the shell; when people discard harmful garbage such as batteries, the garbage can be placed in the discharging port of the device, people can throw the garbage into the device from the feeding port through the feeding port and the detector which are arranged on the shell, and when the detector detects that someone is near the device, the hydraulic cylinder of the device shrinks, so that the garbage can be thrown into the device through the discharging port. And a spring pulls a baffle to keep a tilting state, so that the situation that a palm placed in the feeding opening is pinched is avoided, air in the shell can be converted in real time by rotating air suction fan blades arranged on an air inlet cylinder, and the safety of the internal air is guaranteed.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the technical field of garbage classification, and in particular to an intelligent garbage room for classified collection, automatic weighing and point exchange. Background Art

[0002] According to the different components, properties, utilization value, environmental impact and different treatment requirements of domestic waste, it can be divided into several categories with different properties, which is conducive to the recycling and disposal of domestic waste. Glass, plastic, cardboard, metal and other components in domestic waste can be recycled to achieve resource reuse. Kitchen waste is an important part of domestic waste, with high carbon-nitrogen ratio, high water content, easy to decay and stink, etc. Proper treatment of kitchen waste is not only a demand for environmental protection, but also can bring certain economic benefits.

[0003] Domestic waste has various forms and tends to stack and adhere to each other when disposed of. In actual projects, controlled robotic arms and image monitoring technology are rarely used to sort waste. The management and facilities of most residential communities are weak, environmental protection publicity and popularization efforts are insufficient, and the public's environmental awareness is weak. Community waste classification models and residents' waste classification habits have not yet been formed. Summary of the invention

[0004] Based on the above-mentioned problems existing in the prior art, the problem to be solved by this application is: domestic waste has different forms, and there is a situation of stacking and adhering to each other when it is disposed. In actual projects, the control of robotic arms and image monitoring technology are rarely used to sort waste. The management and facilities of most residential communities are weak, the efforts to popularize environmental protection publicity are insufficient, the public's environmental awareness is relatively weak, and the community waste classification model and residents' waste classification habits have not yet been formed.

[0005] The technical solution adopted by the present application to solve the technical problem is: an intelligent garbage room with classified collection, automatic weighing and point exchange, comprising a top plate and a shell, wherein the top plate and the shell are fixedly connected, and a hazardous waste treatment mechanism is provided on the outer peripheral surface of the shell; The hazardous waste treatment mechanism includes a discharge port provided on the outer peripheral surface of the shell, a display is provided at the upper end of the discharge port, a discharge port is provided on the shell, a feed port is provided on the other side of the shell, a detector for detecting whether there is material in the close range of the feed port is fixedly provided on the shell, and a ventilation system for purifying the airflow in the garbage room is provided on the shell; The ventilation system includes a door panel rotatably arranged on the outer peripheral surface of the shell, an air intake cylinder is fixedly arranged on the shell, and a suction fan blade is rotatably arranged inside the air intake cylinder. A plurality of evenly arranged dustproof nets are opened at the upper end of the shell.

[0006] Preferably, a protective plate is fixedly provided at the edge of the top plate, a reinforcement strip is fixedly provided on the top plate, and a plurality of evenly distributed alarms are provided between two of the reinforcement strips.

[0007] Preferably, a bottom plate is fixedly provided on the bottom end of the shell, and a plurality of evenly arranged positioning openings are opened on the bottom plate, and each of the positioning openings is flush with the vertical plane of the feed port, and a load-bearing unit is provided on the bottom of the positioning openings.

[0008] Preferably, the load-bearing unit comprises a load-bearing column fixedly connected to the bottom of the shell, and a bearing plate is fixedly provided on the load-bearing column.

[0009] Preferably, a baffle is rotatably provided on the outer shell, a positioning plate is fixedly provided on the baffle, one end of the hydraulic cylinder is fixedly connected to the inner wall of the outer shell, a pull plate is fixedly provided on the other end of the hydraulic cylinder, one end of the pull plate is rotatably connected to one end of the positioning plate, and a spring is fixedly provided between the other end of the pull plate and the other end of the positioning plate.

[0010] Preferably, a connecting plate is fixedly provided on the air intake cylinder, and a bidirectional motor is rotatably provided on the connecting plate.

[0011] Preferably, two mutually parallel brackets are fixedly provided on the inner wall of the shell, a swing rod is rotatably provided between the two brackets, a slide groove is provided on the swing rod, an eccentric column is eccentrically provided on one end of the bidirectional motor, and the eccentric column is slidably connected to the slide groove.

[0012] Preferably, two vertical plates parallel to each other are fixedly provided on the side wall of the shell, a spray pipe is rotatably provided between the two vertical plates, a plurality of evenly arranged spray ports are provided on the outer peripheral surface of the spray pipe, and a transmission mechanism for controlling the rotation of the spray pipe is provided on the swing rod.

[0013] Preferably, a sliding column is slidably provided on the top plate, a guide plate is fixedly provided on the side wall of the shell, a slider is slidably provided on the guide plate, a scraper is fixedly provided on one end of the slider, the scraper is fitted with the shell, a hanging rod is fixedly provided on the other end of the slider, an arc-shaped plate matching the hanging rod is fixedly provided on the spray pipe, a limit plate is fixedly provided on the slider, a limit rod is fixedly provided on the limit plate, and the limit rod is slidably connected to the swing rod.

[0014] Preferably, a liquid storage tank is fixedly provided on the top plate, a water pump is fixedly provided on the outer wall of the liquid storage tank, a connecting pipe is fixedly provided on the water pump, a cleaning plate is slidingly provided in the liquid storage tank, a cleaning shaft is rotatably provided on the cleaning plate on the door lock, a stirring rod is fixedly provided on the outer peripheral surface of the cleaning shaft, and an adjusting plate is fixedly connected between the cleaning plate and the sliding column.

[0015] The beneficial effects of the present application are as follows: the present application provides an intelligent garbage room with classified collection, automatic weighing and point exchange, which, through the discharge port and the outlet port arranged on the outer wall of the shell, enables people to place hazardous garbage such as batteries in the discharge port of the device when discarding the garbage, and then through the feed port and the detector arranged on the shell, enables people to throw the garbage into the device through the feed port when it is ordinary garbage, and when the detector detects that there is someone near the device, the hydraulic cylinder of the device contracts, and the baffle is pulled by the spring to keep it in an upturned state to avoid pinching the palm put into the feed port, and then by rotating the suction fan blades arranged on the air intake cylinder, the gas in the shell can be converted in real time to ensure the safety of the internal air. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a side view structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the internal structure of the housing of the present invention; Figure 4 It is a schematic diagram of the local structure of the present invention Figure 1 ; Figure 5 It is a structural schematic diagram of a load-bearing unit of the present invention; Figure 6 It is a schematic diagram of the local structure of the present invention Figure 2 ; Figure 7 It is a schematic diagram of the local structure of the present invention Figure 3 ; Figure 8 It is a schematic diagram of the internal structure of the liquid storage tank of the present invention.

[0017] In the figure: 1. top plate; 11. reinforcement strip; 12. alarm; 13. protective plate; 2. shell; 21. hazardous waste treatment mechanism; 211. discharge port; 212. discharge port; 213. display; 3. ventilation system; 31. door panel; 32. air intake cylinder; 33. dust screen; 34. suction fan blade; 35. two-way motor; 36. connecting plate; 37. eccentric column; 38. bracket; 381. swing rod; 382. slideway; 4. liquid storage tank; 41. water pump; 42. connecting pipe ; 43. Adjustment plate; 44. Cleaning plate; 45. Cleaning shaft; 46. Stirring rod; 5. Feed inlet; 51. Detector; 52. Baffle; 521. Positioning plate; 522. Spring; 53. Hydraulic cylinder; 531. Pull plate; 6. Positioning port; 61. Load-bearing plate; 62. Load-bearing column; 7. Vertical plate; 71. Spray pipe; 72. Spray port; 73. Arc plate; 8. Guide plate; 81. Sliding block; 82. Scraper; 9. Sliding column; 91. Hanging rod; 92. Limit plate; 93. Limit rod. DETAILED DESCRIPTION

[0018] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0019] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0020] Reference Figure 1-Figure 3 , a smart garbage room with classified collection, automatic weighing and point exchange, comprising a top plate 1 and a shell 2, the top plate 1 and the shell 2 are fixedly connected, and a hazardous waste treatment mechanism 21 is provided on the outer peripheral surface of the shell 2; The hazardous waste treatment mechanism 21 includes a discharge port 211 provided on the outer peripheral surface of the housing 2, a display 213 is provided on the upper end of the discharge port 211, a discharge port 212 is provided on the housing 2, a feed port 5 is provided on the other side of the housing 2, a detector 51 for detecting whether there is material in the close range of the feed port 5 is fixedly provided on the housing 2, and a ventilation system 3 for purifying the airflow in the garbage room is provided on the housing 2; The ventilation system 3 includes a door panel 31 rotatably arranged on the outer peripheral surface of the shell 2, an air intake cylinder 32 is fixedly arranged on the shell 2, and a suction fan blade 34 is rotatably arranged in the air intake cylinder 32. A plurality of evenly arranged dustproof nets 33 are opened at the upper end of the shell 2.

[0021] Reference Figure 1 , Figure 4 and Figure 5 A protective plate 13 is fixedly provided at the edge of the top plate 1, a reinforcement strip 11 is fixedly provided on the top plate 1, and a plurality of evenly arranged alarms 12 are provided between the two reinforcement strips 11. By providing the protective plate 13 on the top plate 1, the overall strength of the garbage room is increased.

[0022] Reference Figure 1 , Figure 3 and Figure 5 A bottom plate is fixedly provided on the bottom end of the shell 2, and a plurality of evenly arranged positioning holes 6 are opened on the bottom plate, and each positioning hole 6 is flush with the vertical surface of the feed port 5. A load-bearing unit is provided on the bottom of the positioning hole 6. By means of the positioning hole 6 provided on the bottom plate, when the staff places the trash can, they can snap the bottom end of the trash can into the positioning hole 6 of the device to ensure the stability of the trash can. The load-bearing unit includes a load-bearing column 62 fixedly connected to the bottom of the shell 2, and a bearing plate 61 is fixedly provided on the load-bearing column 62.

[0023] Reference Figure 4-Figure 6 The load-bearing unit includes a load-bearing column 62 fixedly connected to the bottom of the shell 2, and a load-bearing plate 61 is fixedly arranged on the load-bearing column 62. By setting the load-bearing plate 61 on the bottom of the shell 2, as the garbage on the trash can increases, the weight of the trash can increases accordingly, and the pressure on the load-bearing column 62 increases. When the weight on the load-bearing column 62 reaches the rated value, the alarm 12 sounds an alarm, and then the staff will replace it.

[0024] Reference Figure 3-Figure 5 A baffle 52 is rotatably provided on the outer shell 2, and a positioning plate 521 is fixedly provided on the baffle 52. One end of the hydraulic cylinder 53 is fixedly connected to the inner wall of the outer shell 2, and a pull plate 531 is fixedly provided on the other end of the hydraulic cylinder 53. One end of the pull plate 531 is rotatably connected to one end of the positioning plate 521, and a spring 522 is fixedly provided between the other end of the pull plate 531 and the other end of the positioning plate 521. By means of the baffle 52 provided on the outer shell 2, when the detector 51 detects that there is someone near the device, the hydraulic cylinder 53 is started and drives the baffle 52 to rotate, thereby ensuring that the baffle 52 is in an open state, thereby preventing the staff from being pinched when throwing garbage.

[0025] Reference Figure 1 , Figure 6 and Figure 7 A connecting plate 36 is fixedly provided on the air inlet cylinder 32, and a bidirectional motor 35 is rotatably provided on the connecting plate 36. By means of the bidirectional motor 35 provided on the connecting plate 36, when the bidirectional motor 35 rotates, the suction fan blades 34 fixedly connected to the output end of the bidirectional motor 35 rotate, thereby changing the airflow inside the device.

[0026] Reference Figure 6-Figure 8 Two mutually parallel brackets 38 are fixedly provided on the inner wall of the shell 2, a swing rod 381 is rotatably provided between the two brackets 38, a slide groove 382 is provided on the swing rod 381, an eccentric column 37 is eccentrically provided on one end of the bidirectional motor 35, and the eccentric column 37 is slidably connected to the slide groove 382. The swing rod 381 provided between the two brackets 38 can drive the eccentrically provided eccentric column 37 to rotate when the bidirectional motor 35 rotates, and the eccentrically rotating eccentric column 37 can drive the sliding along the slide groove 382 and drive the swing rod 381 to swing up and down.

[0027] Reference Figure 1 , Figure 6 and Figure 7 Two vertical plates 7 parallel to each other are fixedly arranged on the side wall of the shell 2, a spray pipe 71 is rotatably arranged between the two vertical plates 7, a plurality of evenly arranged spray ports 72 are opened on the outer peripheral surface of the spray pipe 71, and a transmission mechanism for controlling the rotation of the spray pipe 71 is provided on the swing rod 381. Through the spray pipe 71 arranged between the two vertical plates 7, the interior of the garbage room can be regularly disinfected by spraying disinfectant water to ensure the cleanliness of the interior of the garbage room.

[0028] Reference Figure 6-Figure 8 , a sliding column 9 is slidably provided on the top plate 1, a guide plate 8 is fixedly provided on the side wall of the shell 2, and a slider 81 is slidably provided on the guide plate 8, a scraper 82 is fixedly provided on one end of the slider 81, and the scraper 82 is fitted with the shell 2, and a hanging rod 91 is fixedly provided on the other end of the slider 81, and an arc plate 73 matching the hanging rod 91 is fixedly provided on the spray pipe 71, a limit plate 92 is fixedly provided on the slider 81, and a limit rod 93 is fixedly provided on the limit plate 92, and the limit rod 93 is slidably connected with the swing rod 381. Through the sliding column 9 provided on the top plate 1, it is realized that in the process of the swing rod 381 swinging up and down, the slider 81 is driven to slide along the guide plate 8 by the limit plate 92, thereby pushing the sliding column 9 to move up and down, and the arc plate 73 is toggled by the hanging rod 91 on the slider 81, so as to change the spraying angle of the spray pipe 71, and at the same time, the scraper 82 can scrape off impurities attached to the dustproof net 33.

[0029] Reference Figure 6-Figure 8A liquid storage tank 4 is fixedly arranged on the top plate 1, a water pump 41 is fixedly arranged on the outer wall of the liquid storage tank 4, a connecting pipe 42 is fixedly arranged on the water pump 41, a cleaning plate 44 is slidably arranged in the liquid storage tank 4, a cleaning shaft 45 is rotatably arranged on the cleaning plate 44 on the door lock, a stirring rod 46 is fixedly arranged on the outer peripheral surface of the cleaning shaft 45, and an adjusting plate 43 is fixedly connected between the cleaning plate 44 and the sliding column 9. By means of the adjusting plate 43 arranged between the cleaning plate 44 and the sliding column 9, it is achieved that during the process of the sliding column 9 sliding up and down, the cleaning shaft 45 can be controlled to slide up and down, thereby driving the stirring rod 46 to slide up and down, and the disinfectant stored in the liquid storage tank 4 is stirred.

[0030] The specific solution is as follows: when using the device, the staff first fixes the device in a suitable position, and increases the overall strength of the garbage room by setting the protective plate 13 on the top plate 1. By setting the positioning hole 6 on the bottom plate, the staff can buckle the bottom end of the garbage can at the positioning hole 6 of the device when placing the garbage can, thereby ensuring the stability of the garbage can. The bearing plate 61 set on the bottom of the shell 2 realizes that as the garbage on the garbage can increases, the weight of the garbage can increases accordingly, and the pressure on the load-bearing column 62 increases. When the weight on the load-bearing column 62 reaches the rated value, the alarm 12 sounds an alarm, and then the staff replaces it. When the detector 51 detects that there is someone near the device, the hydraulic cylinder 53 starts, and the load The movable baffle 52 rotates to ensure that the baffle 52 is in an open state to prevent the staff from being pinched when throwing garbage. The sliding column 9 arranged on the top plate 1 can realize that during the up and down swinging of the swing rod 381, the slider 81 is driven by the limit plate 92 to slide along the guide plate 8, thereby pushing the sliding column 9 to move up and down, and the hanging rod 91 on the slider 81 is used to move the arc plate 73, thereby changing the spraying angle of the spray pipe 71. The adjustment plate 43 arranged between the cleaning plate 44 and the sliding column 9 can control the cleaning shaft 45 to slide up and down during the up and down sliding of the sliding column 9, thereby driving the stirring rod 46 to slide up and down, and stirring the disinfectant stored in the liquid storage tank 4.

[0031] A person skilled in the art should understand that the discussion of any of the above embodiments is only exemplary, and within the spirit of the present invention, the technical features in the above embodiments or in different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0032] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An intelligent garbage room for classified collection, automatic weighing and point redemption, comprising a top plate (1) and a shell (2), characterized in that: The top plate (1) is fixedly connected to the outer shell (2), and a hazardous waste treatment mechanism (21) is provided on the outer peripheral surface of the outer shell (2); The hazardous waste treatment mechanism (21) comprises a discharge port (211) provided on the outer peripheral surface of the housing (2), a display (213) being provided on the upper end of the discharge port (211), a discharge port (212) being provided on the housing (2), a feed port (5) being provided on the other side of the housing (2), a detector (51) being fixedly provided on the housing (2) for detecting whether there is material in the close proximity of the feed port (5), and a ventilation system (3) for purifying airflow in the garbage room being provided on the housing (2); The ventilation system (3) comprises a door panel (31) rotatably arranged on the outer peripheral surface of the outer shell (2), an air intake cylinder (32) is fixedly arranged on the outer shell (2), a suction fan blade (34) is rotatably arranged in the air intake cylinder (32), and a plurality of evenly arranged dustproof nets (33) are provided at the upper end of the outer shell (2).

2. According to claim 1, the intelligent garbage room with classified collection, automatic weighing and point exchange is characterized in that: A protective plate (13) is fixedly arranged at the edge of the top plate (1), a reinforcement strip (11) is fixedly arranged on the top plate (1), and a plurality of evenly arranged alarms (12) are arranged between two reinforcement strips (11).

3. According to claim 1, the intelligent garbage room with classified collection, automatic weighing and point exchange is characterized in that: A bottom plate is fixedly arranged on the bottom end of the shell (2), and a plurality of evenly arranged positioning openings (6) are provided on the bottom plate, and each of the positioning openings (6) is flush with the vertical surface of the feed opening (5), and a load-bearing unit is provided at the bottom of the positioning opening (6).

4. According to claim 3, the intelligent garbage room with classified collection, automatic weighing and point exchange is characterized in that: The load-bearing unit comprises a load-bearing column (62) fixedly connected to the bottom of the housing (2), and a bearing plate (61) is fixedly arranged on the load-bearing column (62).

5. According to claim 1, the intelligent garbage room with classified collection, automatic weighing and point exchange is characterized in that: A baffle (52) is rotatably provided on the outer shell (2), a positioning plate (521) is fixedly provided on the baffle (52), a hydraulic cylinder (53) is fixedly connected to the inner wall of the outer shell (2), a pulling plate (531) is fixedly provided at the other end of the hydraulic cylinder (53), one end of the pulling plate (531) is rotatably connected to one end of the positioning plate (521), and a spring (522) is fixedly provided between the other end of the pulling plate (531) and the other end of the positioning plate (521).

6. According to claim 1, the intelligent garbage room with classified collection, automatic weighing and point exchange is characterized in that: A connecting plate (36) is fixedly arranged on the air intake cylinder (32), and a bidirectional motor (35) is rotatably arranged on the connecting plate (36).

7. The intelligent garbage room with classified collection, automatic weighing and point exchange according to claim 6 is characterized in that: Two brackets (38) parallel to each other are fixedly arranged on the inner wall of the housing (2), a swing rod (381) is rotatably arranged between the two brackets (38), a slide groove (382) is provided on the swing rod (381), an eccentric column (37) is eccentrically arranged on one end of the bidirectional motor (35), and the eccentric column (37) is slidably connected to the slide groove (382).

8. The intelligent garbage room with classified collection, automatic weighing and point exchange according to claim 7 is characterized in that: Two mutually parallel vertical plates (7) are fixedly arranged on the side wall of the shell (2), a spray pipe (71) is rotatably arranged between the two vertical plates (7), a plurality of evenly arranged spray ports (72) are provided on the outer peripheral surface of the spray pipe (71), and a transmission mechanism for controlling the rotation of the spray pipe (71) is provided on the swing rod (381).

9. The intelligent garbage room with classified collection, automatic weighing and point exchange according to claim 8 is characterized in that: A sliding column (9) is slidably provided on the top plate (1), a guide plate (8) is fixedly provided on the side wall of the shell (2), a slider (81) is slidably provided on the guide plate (8), a scraper (82) is fixedly provided on one end of the slider (81), the scraper (82) is fitted with the shell (2), a hanging rod (91) is fixedly provided on the other end of the slider (81), an arc-shaped plate (73) matching the hanging rod (91) is fixedly provided on the spray pipe (71), a limit plate (92) is fixedly provided on the slider (81), a limit rod (93) is fixedly provided on the limit plate (92), and the limit rod (93) is slidably connected to the swing rod (381).

10. The intelligent garbage room with classified collection, automatic weighing and point exchange according to claim 9 is characterized in that: A liquid storage tank (4) is fixedly arranged on the top plate (1), a water pump (41) is fixedly arranged on the outer wall of the liquid storage tank (4), a connecting pipe (42) is fixedly arranged on the water pump (41), a cleaning plate (44) is slidably arranged in the liquid storage tank (4), a cleaning shaft (45) is rotatably arranged on the cleaning plate (44) on the door lock, a stirring rod (46) is fixedly arranged on the outer peripheral surface of the cleaning shaft (45), and an adjusting plate (43) is fixedly connected between the cleaning plate (44) and the sliding column (9).