Power distribution cabinet with monitoring function

Abstract

The invention relates to the technical field of power distribution cabinets, and discloses a power distribution cabinet with a monitoring function, which comprises a cabinet body, the bottom of the cabinet body is fixedly connected with a base, the top of the cabinet body is fixedly connected with a camera, the inner wall of the left side of the cabinet body is rotatably connected with a cabinet door, and the left side of the cabinet door is rotatably connected with a handle. The front part of the cabinet body is fixedly connected with a filter plate I. The camera can monitor the periphery of the power distribution cabinet, the safety of the power distribution cabinet is improved, the filter plate II can filter dust in air entering the power distribution cabinet, and the dust is prevented from entering the power distribution cabinet to cause short circuit of internal circuits. And meanwhile, the cleaning plate can clean dust accumulated on the filter plate II, so that the dust is prevented from being accumulated on the filter plate II, the filter plate II is prevented from being blocked, and the ventilation and heat dissipation effects of the power distribution cabinet are further prevented from being influenced.

Description

Technical Field

[0001] The present invention relates to the technical field of distribution cabinets, and particularly to a distribution cabinet with a monitoring function. Background Art

[0002] Distribution cabinets (boxes) are divided into power distribution cabinets (boxes), lighting distribution cabinets (boxes), and metering cabinets (boxes). They are the end - level equipment of the power distribution system. Distribution cabinets are the general term for motor control centers. Distribution cabinets are suitable for occasions where the load is relatively dispersed and the number of circuits is small; motor control centers are used for occasions where the load is concentrated and the number of circuits is large. They distribute the electric energy of a certain circuit of the upper - level power distribution equipment to nearby loads, and this level of equipment should provide protection, monitoring, and control for the load.

[0003] The patent with the publication number CN215816925U relates to a mosquito - proof distribution cabinet, including a distribution cabinet body and a cabinet door. An air duct is circumferentially arranged along the edge of the inner wall of the distribution cabinet body close to the cabinet door. The cavity inside the air duct forms an annular air duct. A fan is provided in the distribution cabinet body. A connecting pipe is connected between the fan and the air duct. The air duct is provided with a plurality of air outlets, and the air outlets are located on the side of the air duct away from the side wall of the distribution cabinet body. The air outlets are arranged in sequence along the extending direction of the air duct. This application can reduce the situation of mosquitoes entering the distribution cabinet when the cabinet door of the distribution cabinet is opened. However, there is a problem that dust enters the cabinet through the ventilation holes during the use of this device. The conventional technology to solve this problem is to add a filter plate to block the dust, but it is easy to cause dust to accumulate on the filter plate, resulting in the blockage of the filter plate and thus affecting the heat dissipation of the distribution cabinet, leading to an increase in the temperature inside the distribution cabinet and then damage. Therefore, a distribution cabinet with a monitoring function is proposed to solve the above - mentioned problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a distribution cabinet with a monitoring function aiming at the deficiencies in the above - mentioned prior art.

[0005] To solve the above technical problems, the technical solution adopted by the present invention is as follows: A power distribution cabinet with a monitoring function, including a cabinet body, a base is fixedly connected to the bottom of the cabinet body, a camera is fixedly connected to the top of the cabinet body, a cabinet door is rotatably connected to the inner wall on the left side of the cabinet body, a handle is rotatably connected to the left side of the cabinet door, a first filter plate is fixedly connected to the front part of the cabinet body, a fan assembly is installed at the rear of the first filter plate, a second filter plate is fixedly connected to the inner wall on the right side of the cabinet body, a first hollowed-out plate is fixedly connected to the inner wall of the cabinet body, a motor is fixedly connected to the top of the first hollowed-out plate, a connecting rod is fixedly connected to the output end of the motor, a U-shaped plate is slidably connected to the inner wall of the connecting rod, a conduction rod is fixedly connected to the inner wall on the side of the U-shaped plate away from the motor, a cleaning plate is fixedly connected to the right side of the conduction rod, a clamping block is fixedly connected to the right side of the second filter plate, and a elastic sheet is fixedly connected to the inner wall of the cleaning plate, so that the camera can monitor the surrounding of the power distribution cabinet, improving the safety of the power distribution cabinet. At the same time, the second filter plate can filter the dust in the air entering the power distribution cabinet to prevent the dust from entering the power distribution cabinet and causing a short circuit in the internal circuit. At the same time, the cleaning plate can clean the dust accumulated on the second filter plate to prevent the dust from accumulating on the second filter plate, thereby causing the second filter plate to be blocked, and further affecting the ventilation and heat dissipation effect of the power distribution cabinet.

[0006] The circumferential surface of the conduction rod is rotatably connected to the inner wall of the cabinet body, and the right side of the first hollowed-out plate is fixedly connected to the left side of the second filter plate.

[0007] Preferably, a second hollowed-out plate is fixedly connected to the inner wall of the cabinet body. A first limiting block is slidably connected to the inner wall on the left side of the second hollowed-out plate. A second limiting block is slidably connected to the inner wall of the first limiting block. A rotating shaft is rotatably connected to the inner wall of the second hollowed-out plate. A connecting shaft is rotatably connected to the right side of the cabinet door. A belt is drivingly connected to the circumferential surface of the connecting shaft. A transmission shaft is rotatably connected to the right side of the cabinet door. A second fixing block is fixedly connected to the right side of the cabinet door. A second rotating rod is rotatably connected to the inner wall of the second fixing block. A drawer is slidably connected to the top of the second hollowed-out plate. A first fixing block is fixedly connected to the left side of the drawer. A first rotating rod is rotatably connected to the inner wall of the first fixing block. An electronic component is installed inside the drawer. Tooth profiles are provided on the inner wall of the connecting shaft and the surface of the rotating shaft, and the connecting shaft and the rotating shaft are meshed with each other. The rear part of the first rotating rod is rotatably connected to the rear part of the second rotating rod. The left side of the transmission shaft is fixedly connected to the right side of the handle. The inner wall of the first limiting block is slidably connected to the surface of the second limiting block. Tooth profiles are provided on the surfaces of the first limiting block and the rotating shaft, and the first limiting block and the rotating shaft are meshed with each other. Tooth profiles are provided on the rear part of the second limiting block, and the second limiting block and the rotating shaft are meshed with each other. When the power distribution cabinet is opened, the drawer can drive the electrical components inside it to automatically move out of the power distribution cabinet, so that when workers perform maintenance, they do not need to stretch their bodies into the power distribution cabinet, making the maintenance more convenient and fast. The drawer can be limited by the first limiting block and the second limiting block to prevent the drawer from shaking during the movement of the power distribution cabinet, thereby preventing the electrical components in the drawer from colliding and being damaged.

[0008] Preferably, a collection box is installed inside the inner wall on the right side of the base. A pressing plate is slidably connected to the inner wall of the collection box. A spring is fixedly connected to the top of the pressing plate. A displacement plate is fixedly connected to the top of the spring. Spikes are fixedly connected to the inner wall of the collection box. The left side of the displacement plate is slidably connected to the right side of the cleaning plate. A plurality of springs are provided, and the plurality of springs are linearly arrayed on the top of the pressing plate. After dust falls into the collection box, the pressing plate can squeeze the dust in the collection box. The compressed dust can reduce the occupied space and improve the space utilization rate of the collection box, so as to accommodate more dust. The squeezed dust will adhere to the spikes to prevent the dust from flying and avoid the dust being sucked into the ventilation opening again.

[0009] The present invention adopts the above technical solutions and can bring the following beneficial effects: 1. The power distribution cabinet with monitoring function, through the cooperative operation among the cabinet body, base, filter plate 1, cabinet door, handle, camera, electronic components, U-shaped plate, conduction rod, connecting rod, motor, filter plate 2, hollow plate 1, and hollow plate 2, enables the camera to monitor the surroundings of the power distribution cabinet, improving the safety of the power distribution cabinet. At the same time, filter plate 2 can filter the dust in the air entering the power distribution cabinet to prevent dust from entering the power distribution cabinet and causing short circuits in the internal circuits. Meanwhile, the cleaning plate can clean the dust accumulated on filter plate 2 to prevent dust from accumulating on filter plate 2, which may lead to blockage of filter plate 2 and further affect the ventilation and heat dissipation effect of the power distribution cabinet.

[0010] 2. The power distribution cabinet with monitoring function, through the cooperative operation among the drawer, fan assembly, fixed block 1, rotating rod 1, rotating rod 2, fixed block 2, connecting shaft, belt, transmission shaft, limit block 1, rotating shaft, and limit block 2, when the power distribution cabinet is opened, allows the drawer to drive the electrical components inside it to automatically move out of the power distribution cabinet, enabling workers to perform maintenance more conveniently and quickly without reaching into the power distribution cabinet. The drawer can be limited by limit block 1 and limit block 2 to prevent the drawer from shaking during the movement of the power distribution cabinet, which may cause the electrical components in the drawer to collide and be damaged.

[0011] 3. The power distribution cabinet with monitoring function, through the cooperative operation among the collection box, clamping block, cleaning plate, elastic sheet, spring, pressing plate, displacement plate, and spikes, after the dust falls into the collection box, the pressing plate can squeeze the dust in the collection box. The compressed dust can reduce the occupied space and improve the space utilization rate of the collection box, thus accommodating more dust. The squeezed dust will adhere to the spikes to prevent the dust from flying and avoid the dust being sucked into the ventilation opening again. Description of the Drawings

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the cabinet body of the present invention; Figure 3 It is a schematic diagram of the structure of hollow plate 2 of the present invention; Figure 4 It is a schematic diagram of the structure of the cabinet door of the present invention; Figure 5 It is a schematic diagram of the structure of hollow plate 1 of the present invention; Figure 6 It is a semi-sectional view of the structure of the collection box of the present invention; Figure 7 It is a schematic diagram of the structure of the cleaning plate of the present invention.

[0013] In the figure: 1, cabinet body; 2, base; 3, first filter plate; 4, cabinet door; 5, handle; 6, camera; 7, electronic components; 8, drawer; 9, fan assembly; 10, first fixing block; 11, first rotating rod; 12, second rotating rod; 13, second fixing block; 14, connecting shaft; 15, belt; 16, transmission shaft; 17, first limiting block; 18, rotating shaft; 19, second limiting block; 20, U-shaped plate; 21, conduction rod; 22, connecting rod; 23, motor; 24, second filter plate; 25, first hollow plate; 26, collection box; 27, clamping block; 28, cleaning plate; 29, elastic sheet; 30, spring; 31, pressing plate; 32, displacement plate; 33, spike; 34, second hollow plate. Specific embodiments

[0014] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0015] Please refer to Figures 1-7 One embodiment of the present invention is: a power distribution cabinet with a monitoring function, including a cabinet body 1, a base 2 is fixedly connected to the bottom of the cabinet body 1, a camera 6 is fixedly connected to the top of the cabinet body 1, a cabinet door 4 is rotatably connected to the inner wall on the left side of the cabinet body 1, a handle 5 is rotatably connected to the left side of the cabinet door 4, a first filter plate 3 is fixedly connected to the front part of the cabinet body 1, a fan assembly 9 is installed at the rear of the first filter plate 3, a second filter plate 24 is fixedly connected to the inner wall on the right side of the cabinet body 1, a first hollow plate 25 is fixedly connected to the inner wall of the cabinet body 1, a motor 23 is fixedly connected to the top of the first hollow plate 25, an output end of the motor 23 is fixedly connected to a connecting rod 22, a U-shaped plate 20 is slidably connected to the inner wall of the connecting rod 22, a conduction rod 21 is fixedly connected to the inner wall of the U-shaped plate 20 away from the motor 23, a cleaning plate 28 is fixedly connected to the right side of the conduction rod 21, a clamping block 27 is fixedly connected to the right side of the second filter plate 24, and an elastic sheet 29 is fixedly connected to the inner wall of the cleaning plate 28.

[0016] The circumferential surface of the conduction rod 21 is rotatably connected to the inner wall of the cabinet body 1. The right side of the first hollow plate 25 is fixedly connected to the left side of the second filter plate 24. When the power distribution cabinet is in use, the camera 6 can monitor the surrounding environment of the power distribution cabinet in real time, improving safety and helping to detect abnormal situations in a timely manner and take corresponding measures. When the motor 23 is started, the motor 23 drives the connecting rod 22 to perform circular motion. While the connecting rod 22 performs circular motion, it slides on the circumferential surface at the bottom of the U-shaped plate 20 and drives the U-shaped plate 20 to swing reciprocally. The U-shaped plate 20 drives the conduction rod 21 to rotate reciprocally. The conduction rod 21 drives the cleaning plate 28 to swing. The cleaning plate 28 drives the elastic sheet 29 to swing reciprocally. When the cleaning plate 28 swings, it will scrape off the dust accumulated on the right side of the second filter plate 24. At the same time, the cleaning plate 28 drives the elastic sheet 29 to swing. During the movement of the elastic sheet 29, it impacts with the fixture block 27 and generates vibration. The elastic sheet 29 will transmit the vibration to the cleaning plate 28 and cause it to vibrate. At this time, the vibration of the cleaning plate 28 will shake off the dust adhered to its surface, realizing self-cleaning. The fallen dust falls into the collection box 26 and is collected.

[0017] A collection box 26 is installed on the inner wall of the right side of the base 2. A pressing plate 31 is slidably connected to the inner wall of the collection box 26. The top of the pressing plate 31 is fixedly connected to a spring 30. The top of the spring 30 is fixedly connected to a displacement plate 32. A spike 33 is fixedly connected to the inner wall of the collection box 26. The left side of the displacement plate 32 is slidably connected to the right side of the cleaning plate 28. The number of the springs 30 is set to be multiple, and the multiple springs 30 are linearly arrayed on the top of the pressing plate 31. When the dust entering the collection box 26 falls inside the collection box 26, and when the cleaning plate 28 swings, it will drive the displacement plate 32 to move. The displacement plate 32 drives the spring 30 to move. The spring 30 drives the pressing plate 31 to move. The movement of the pressing plate 31 will push the dust to both sides of the collection box 26 and squeeze the dust. The compressed dust can reduce the occupied space and improve the space utilization rate of the collection box 26. At the same time, the compressed dust will be pressed on the spikes 33, so that the spikes 33 limit it to prevent the dust from flying again and leaving the collection box 26.

[0018] Working principle: When the power distribution cabinet is in use, the camera 6 can monitor the surrounding environment of the power distribution cabinet in real time, improving safety and helping to detect abnormal situations in a timely manner and take corresponding measures. When the motor 23 starts, the motor 23 drives the connecting rod 22 to perform circular motion. While the connecting rod 22 is performing circular motion, it will slide on the circumferential surface at the bottom of the U-shaped plate 20 and drive the U-shaped plate 20 to swing reciprocally. The U-shaped plate 20 drives the conduction rod 21 to rotate reciprocally, the conduction rod 21 drives the cleaning plate 28 to swing, and the cleaning plate 28 drives the elastic piece 29 to swing reciprocally. When the cleaning plate 28 swings, it will scrape off the dust accumulated on the right side of the second filter plate 24. At the same time, the cleaning plate 28 drives the elastic piece 29 to swing. During the movement of the elastic piece 29, it impacts with the fixture block 27 and generates vibration. The elastic piece 29 will transmit the vibration to the cleaning plate 28 and cause it to vibrate. At this time, the vibration of the cleaning plate 28 will shake off the dust adhering to its surface, realizing self-cleaning. The fallen dust falls into the collection box 26 and is collected.

[0019] When the dust that enters the collection box 26 lands inside the collection box 26, and when the cleaning plate 28 swings, it will drive the displacement plate 32 to move. The displacement plate 32 drives the spring 30 to move, the spring 30 drives the pressing plate 31 to move, and the movement of the pressing plate 31 will push the dust to both sides of the collection box 26 and squeeze the dust. The compressed dust can reduce the occupied space and improve the space utilization rate of the collection box 26. At the same time, the compressed dust will be pressed on the spikes 33, so that the spikes 33 limit it to prevent the dust from flying again and leaving the collection box 26.

[0020] Please refer to Figures 1-7, on the basis of the above embodiments, in another embodiment of the present invention, a hollow plate two 34 is fixedly connected to the inner wall of the cabinet body 1. A first limiting block 17 is slidably connected to the inner wall on the left side of the hollow plate two 34. A second limiting block 19 is slidably connected to the inner wall of the first limiting block 17. A rotating shaft 18 is rotatably connected to the inner wall of the hollow plate two 34. A connecting shaft 14 is rotatably connected to the right side of the cabinet door 4. A belt 15 is drivingly connected to the circumferential surface of the connecting shaft 14. A transmission shaft 16 is rotatably connected to the right side of the cabinet door 4. A second fixing block 13 is fixedly connected to the right side of the cabinet door 4. A second rotating rod 12 is rotatably connected to the inner wall of the second fixing block 13. A drawer 8 is slidably connected to the top of the hollow plate two 34. A first fixing block 10 is fixedly connected to the left side of the drawer 8. A first rotating rod 11 is rotatably connected to the inner wall of the first fixing block 10. An electronic component 7 is installed in the inner wall of the drawer 8. Tooth teeth are provided on the inner wall of the connecting shaft 14 and the surface of the rotating shaft 18, and the connecting shaft 14 and the rotating shaft 18 are meshed with each other. The rear part of the first rotating rod 11 is rotatably connected to the rear part of the second rotating rod 12. The left side of the transmission shaft 16 is fixedly connected to the right side of the handle 5. The inner wall of the first limiting block 17 is slidably connected to the surface of the second limiting block 19. Tooth teeth are provided on the surface of the first limiting block 17 and the rotating shaft 18, and the first limiting block 17 and the rotating shaft 18 are meshed with each other. Tooth teeth are provided on the rear part of the second limiting block 19, and the second limiting block 19 and the rotating shaft 18 are meshed with each other. When it is necessary to open the cabinet door 4, first rotate the handle 5. The handle 5 drives the transmission shaft 16 to rotate, and then drives the connecting shaft 14 to rotate through the belt 15. The rotation of the connecting shaft 14 drives the first limiting block 17 to move downward through the tooth teeth, and the connecting shaft 14 drives the second limiting block 19 to move upward. At this time, the first limiting block 17 and the second limiting block 19 will no longer block the drawer 8, thereby releasing the limit on the drawer 8. At this time, open the cabinet door 4. The cabinet door 4 drives the second fixing block 13 to move. The second fixing block 13 drives the second rotating rod 12 to rotate. The second rotating rod 12 drives the first rotating rod 11 to rotate. The first rotating rod 11 drives the first fixing block 10 to move. The first fixing block 10 drives the drawer 8 to move, thereby releasing the limit on the drawer 8, so that the drawer 8 can be smoothly pulled out, facilitating the maintenance and repair of the electronic component 7.

[0021] Working principle: when it is necessary to open the cabinet door 4, the handle 5 is turned first, and the handle 5 drives the transmission shaft 16 to rotate, and then drives the connecting shaft 14 to rotate through the belt 15, and the connecting shaft 14 rotates and drives the limit block 17 to move downward through the teeth, and the connecting shaft 14 drives the limit block 2 19 to move upward. At this time, the limit block 17 and the limit block 2 19 will no longer block the drawer 8, thereby releasing the limit on the drawer 8. At this time, the cabinet door 4 is opened, the cabinet door 4 drives the fixed block 2 13 to move, the fixed block 2 13 drives the rotating rod 2 12 to rotate, the rotating rod 2 12 drives the rotating rod 1 11 to rotate, the rotating rod 1 11 drives the fixed block 10 to move, and the fixed block 10 drives the drawer 8 to move, thereby releasing the limit on the drawer 8, so that the drawer 8 can be smoothly pulled out, which is convenient for the maintenance and inspection of the electronic component 7. There is a large gap between the connecting shaft 14 and the rotating shaft 18, but it can still be transmitted through the teeth. Therefore, when the cabinet door 4 is opened, the connecting shaft 14 can follow the cabinet door 4 to open and disengage from the rotating shaft 18.

[0022] The present invention provides a power distribution cabinet with monitoring function. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A power distribution cabinet with monitoring function, comprising a cabinet body (1), characterized in that: The bottom of the cabinet (1) is fixedly connected to a base (2), the top of the cabinet (1) is fixedly connected to a camera (6), the inner wall on the left side of the cabinet (1) is rotatably connected to a cabinet door (4), the left side of the cabinet door (4) is rotatably connected to a handle (5), the front of the cabinet (1) is fixedly connected to a filter plate 1 (3), the rear of the filter plate 1 (3) is equipped with a fan assembly (9), the inner wall on the right side of the cabinet (1) is fixedly connected to a filter plate 2 (24), and the inner wall of the cabinet (1) is fixedly connected to a hollow plate 1 (25), The top of the hollow plate 1 (25) is fixedly connected to a motor (23), the output end of the motor (23) is fixedly connected to a connecting rod (22), the inner wall of the connecting rod (22) is slidably connected to a U-shaped plate (20), the inner wall of the U-shaped plate (20) away from the motor (23) is fixedly connected to a conduction rod (21), the right side of the conduction rod (21) is fixedly connected to a cleaning plate (28), the right side of the filter plate 2 (24) is fixedly connected to a clamping block (27), and the inner wall of the cleaning plate (28) is fixedly connected to a spring sheet (29).

2. A power distribution cabinet with monitoring function according to claim 1, characterized in that; The circumferential surface of the conduction rod (21) is rotatably connected to the inner wall of the cabinet (1), and the right side of the first hollow plate (25) is fixedly connected to the left side of the second filter plate (24).

3. A power distribution cabinet with monitoring function according to claim 2, characterized in that: The inner wall of the cabinet body (1) is fixedly connected to a hollow plate 2 (34); the inner wall on the left side of the hollow plate 2 (34) is slidably connected to a limit block 1 (17); the inner wall of the limit block 1 (17) is slidably connected to a limit block 2 (19); the inner wall of the hollow plate 2 (34) is rotatably connected to a rotating shaft (18); the right side of the cabinet door (4) is rotatably connected to a connecting shaft (14); the circumferential surface of the connecting shaft (14) is transmission-connected to a belt (15); the cabinet door (4) The right side of the cabinet door (4) is rotatably connected to a transmission shaft (16); the right side of the cabinet door (4) is fixedly connected to a fixed block 2 (13); the inner wall of the fixed block 2 (13) is rotatably connected to a rotating rod 2 (12); the top of the hollow plate 2 (34) is slidably connected to a drawer (8); the left side of the drawer (8) is fixedly connected to a fixed block 1 (10); the inner wall of the fixed block 1 (10) is rotatably connected to a rotating rod 1 (11); and the inner wall of the drawer (8) is installed with an electronic component (7).

4. A power distribution cabinet with monitoring function according to claim 3, characterized in that: The inner wall of the connecting shaft (14) and the surface of the rotating shaft (18) are both provided with teeth, and the connecting shaft (14) and the rotating shaft (18) are meshed with each other, and the rear part of the rotating rod 1 (11) is rotatably connected to the rear part of the rotating rod 2 (12).

5. A power distribution cabinet with monitoring function according to claim 4, characterized in that: The left side of the transmission shaft (16) is fixedly connected to the right side of the handle (5), and the inner wall of the first limit block (17) is slidably connected to the surface of the second limit block (19).

6. A power distribution cabinet with monitoring function according to claim 5, characterized in that: The surfaces of the limit block 1 (17) and the rotating shaft (18) are both provided with teeth, and the limit block 1 (17) and the rotating shaft (18) are meshed with each other. The rear part of the limit block 2 (19) is provided with teeth, and the limit block 2 (19) and the rotating shaft (18) are meshed with each other.

7. A power distribution cabinet with monitoring function according to claim 6, characterized in that: A collection box (26) is mounted on the inner wall on the right side of the base (2); a pressure plate (31) is slidably connected to the inner wall of the collection box (26); a spring (30) is fixedly connected to the top of the pressure plate (31); a displacement plate (32) is fixedly connected to the top of the spring (30); and a spike (33) is fixedly connected to the inner wall of the collection box (26).

8. A power distribution cabinet with monitoring function according to claim 7, characterized in that: The left side of the displacement plate (32) is slidably connected to the right side of the cleaning plate (28), a plurality of springs (30) are provided, and a plurality of springs (30) are linearly arrayed on the top of the pressing plate (31).

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