Descaling device of air energy water heater

Abstract

The invention relates to the technical field of water heater cleaning, in particular to an air energy water heater descaling device which comprises a bearing plate and two water tanks, the two water tanks are mounted on the bearing plate, and a water adding hopper is fixedly arranged at the upper ends of the two water tanks; the water supply mechanism is installed on the bearing plate and connected with the water tank, the water supply mechanism is connected with a rotating mechanism installed on the bearing plate, and the water supply mechanism can guide water into the rotating mechanism and spray the water out; the folding mechanism is fixedly connected with the rotating mechanism, the rotating mechanism is used for driving the folding mechanism to rotate, and the power output end of the folding mechanism is fixedly connected with a telescopic mechanism; and the cleaning mechanism is fixedly connected with the power output end of the telescopic mechanism. According to the descaling device for the air energy water heater, the water tank of the water heater can be descaled, and the descaling device can be folded and unfolded, so that the descaling device can be conveniently used in the water tank, meanwhile, a water source can be supplied according to actual conditions, operation is easy, and practicability is high.

Description

Technical Field

[0001] The invention relates to the technical field of water heater cleaning, and in particular to a descaling device for an air energy water heater. Background Art

[0002] Air-energy water heater, also known as "air source heat pump water heater", has a working principle very similar to that of an air conditioner. It uses a small amount of electricity to drive the compressor. The high-pressure liquid working fluid evaporates into gas in the evaporator after passing through the expansion valve, and absorbs a large amount of heat energy from the air; the gaseous working fluid is compressed by the compressor into a high-temperature, high-pressure liquid, and then enters the condenser to release heat and heat the water. This continuous cycle of heating can heat the water to 50°C~65°C.

[0003] When the air-energy water heater is in use, scale will gradually form in its water tank. Since the entrance of the water tank is small, cleaning the scale is a problem. Although the existing descaling device can descaling, there are still some problems. First, the current descaling device cannot be folded and unfolded, which makes it difficult to use in the water tank. Second, the current descaling device cannot supply water according to actual conditions. Therefore, a descaling device for an air-energy water heater is needed to solve the above problems. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide an air-energy water heater descaling device, aiming to solve the following problems: the existing descaling device cannot be folded and unfolded and cannot supply water according to actual conditions.

[0005] The embodiment of the present invention is implemented as follows: an air-energy water heater descaling device comprises: a supporting plate and a water tank, wherein two water tanks are mounted on the supporting plate, and water filling buckets are fixedly arranged on the upper ends of the two water tanks; a water supply mechanism, which is mounted on the supporting plate and connected to the water tank, and is used to extract water from the water tank or introduce water into the water tank, wherein the water supply mechanism is connected to a rotating mechanism mounted on the supporting plate, and the water supply mechanism can introduce water into the rotating mechanism and spray it out; a folding mechanism, which is fixedly connected to the rotating mechanism, and the rotating mechanism is used to drive the folding mechanism to rotate, and a telescopic mechanism is fixedly connected to the power output end of the folding mechanism, and the folding mechanism is used to control the expansion or folding of the telescopic mechanism; a cleaning mechanism, which is fixedly connected to the power output end of the telescopic mechanism, and is used to clean the inner wall of the water tank of the water heater, and the cleaning mechanism can be folded.

[0006] Preferably, the water supply mechanism includes: a hard pipe, whose water inlet end is fixedly connected to the lower end of the water tank, a pump body for pumping water out of the water tank is installed on the hard pipe, and a sleeve is fixedly connected to the water outlet end of the hard pipe, and the sleeve is rotatably sleeved with a rotating mechanism; a hose, whose water outlet end is fixedly connected to the hard pipe, and a connector is installed at the water inlet end, and the connector is used to connect the hose to a municipal pipeline, a water diversion pipe is fixedly arranged on the hose, and one end of the water diversion pipe away from the hose is connected to the water tank; a first valve, which is installed on the water diversion pipe and is used to control the opening and closing of the water diversion pipe, a second valve for controlling the opening and closing of the hose is installed on the hose, and a third valve for controlling the opening and closing of the hose is installed on the hard pipe.

[0007] Preferably, the rotating mechanism includes: a supporting box, which is fixedly mounted on the supporting plate, a first power member is fixedly mounted inside the supporting box, and the output shaft of the first power member is fixedly connected to a first gear; a rotating tube, which is rotatably mounted on the supporting box, a sleeve and the rotating tube are rotatably sleeved, and a second gear meshing with the first gear is fixedly provided on the rotating tube; an inlet pipe, which passes through the supporting plate and is fixedly connected to the rotating tube, the folding mechanism and the inlet pipe are fixedly connected, and a micro nozzle for spraying water is installed on the inlet pipe.

[0008] Preferably, the folding mechanism includes: a support sleeve, which is fixedly connected to the rotating mechanism and is provided with a groove, a second power member is fixedly installed in the support sleeve, and the output shaft of the second power member is fixedly connected to the third gear; a threaded column, both ends of which are rotatably connected to the inner wall of the support sleeve, and a fourth gear meshing with the third gear is fixedly provided on one side of the threaded column; a double-sided rack, whose threaded sleeve is provided on the threaded column and is slidably connected to the inner wall of the support sleeve, and the double-sided rack is meshed with an expansion and contraction gear rotatably installed on the support sleeve, and two expansion and contraction gears are provided and can rotate under the drive of the double-sided rack; a connecting frame, which is fixedly connected to the expansion and contraction gears, and the telescopic mechanism and the connecting frame are fixedly connected.

[0009] Preferably, the telescopic mechanism includes: a circular sleeve, which is fixedly connected to the connecting frame, a third power member is fixedly installed in the circular sleeve, and an output shaft of the third power member is fixedly connected to a driving bevel gear; a screw rod, both ends of which are rotatably connected to the inner wall of the circular sleeve, and one side of the screw rod is fixedly provided with a driven bevel gear meshing with the driving bevel gear; a guide rod, both ends of which are fixedly connected to the inner wall of the circular sleeve, and a moving block threadedly connected to the screw rod is sleeved on the guide rod; a buffer assembly, which is fixedly installed on the moving block, an extension rod is fixedly provided on the buffer assembly, and one end of the extension rod away from the buffer assembly is fixedly connected to the cleaning mechanism.

[0010] Preferably, the buffer assembly includes: an inner box, which is fixedly mounted on the moving block, a sliding rod is fixedly arranged inside the inner box, a sliding plate is sleeved on the sliding rod, and the extension rod and the sliding plate are fixedly connected; a buffer spring, whose two ends are respectively fixedly connected to the inner wall of the inner box and the sliding plate, for providing buffering for the cleaning mechanism.

[0011] Preferably, the cleaning mechanism comprises: a shaft rod, which is fixedly connected to the power output end of the telescopic mechanism, cleaning plates are rotatably provided at both ends of the shaft rod, the cleaning plates are provided with slots, the shaft rod is arranged in the slots, and a cleaning brush is fixedly provided on the cleaning plates; a fixed block, which is fixedly mounted on the shaft rod, and a reset spring is fixed between the fixed block and the inner wall of the slot for pulling the cleaning plate to rotate around the shaft rod and reset.

[0012] The air energy water heater descaling device provided by the present invention can not only descale the water tank of the water heater, but also can be folded and unfolded, so as to be convenient for use in the water tank. At the same time, it can supply water according to actual conditions, and the operation is simple and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the air-energy water heater descaling device.

[0014] Figure 2 This is a schematic diagram of the water supply mechanism of the air energy water heater descaling device structure.

[0015] Figure 3 The figure is a schematic diagram of the folding mechanism of the descaling device structure of the air energy water heater.

[0016] Figure 4 The figure is a schematic diagram of the telescopic mechanism of the descaling device structure of the air energy water heater.

[0017] Figure 5 The figure is a schematic diagram of the cleaning mechanism of the descaling device structure of the air energy water heater.

[0018] In the attached drawings: 1-carrying plate, 2-water tank, 3-water adding bucket, 4-water supply mechanism, 5-rotating mechanism, 6-folding mechanism, 7-telescopic mechanism, 8-cleaning mechanism, 41-hard pipe, 42-pump body, 43-sleeve, 44-hose, 45-connector, 46-water diversion pipe, 47-first valve, 48-second valve, 49-third valve, 51-support box, 52-first power member, 53-first gear, 54-rotating pipe, 55-second gear, 56-introduction pipe, 57-micro nozzle, 61-support sleeve, 62-third Second power piece, 63-third gear, 64-threaded column, 65-fourth gear, 66-double-sided rack, 67-expansion and contraction gear, 68-connecting frame, 71-circular sleeve, 72-third power piece, 73-driving bevel gear, 74-screw, 75-driven bevel gear, 76-guide rod, 77-moving block, 78-buffer assembly, 79-extension rod, 781-inner box, 782-slide rod, 783-slide plate, 784-buffer spring, 81-shaft rod, 82-cleaning plate, 83-cleaning brush, 84-fixed block, 85-reset spring. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and do not limit the present invention.

[0020] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0021] See also Figure 1 , an embodiment of the present invention provides an air-energy water heater descaling device, the air-energy water heater descaling device comprising: A carrying plate 1 and a water tank 2, wherein the water tank 2 is mounted on the carrying plate 1 and is provided with two, and a water adding bucket 3 is fixedly provided on the upper ends of the two water tanks 2; a water supply mechanism 4, which is mounted on the carrying plate 1 and connected to the water tank 2, and is used to extract water from the water tank 2 or introduce water into the water tank 2, and the water supply mechanism 4 is connected to a rotating mechanism 5 mounted on the carrying plate 1, and the water supply mechanism 4 can introduce water into the rotating mechanism 5 and spray it out; a folding mechanism 6, which is fixedly connected to the rotating mechanism 5, and the rotating mechanism 5 is used to drive the folding mechanism 6 to rotate, and the power output end of the folding mechanism 6 is fixedly connected to a telescopic mechanism 7, and the folding mechanism 6 is used to control the expansion or folding of the telescopic mechanism 7; a cleaning mechanism 8, which is fixedly connected to the power output end of the telescopic mechanism 7, and is used to clean the inner wall of the water tank of the water heater, and the cleaning mechanism 8 can be folded.

[0022] When using the air-energy water heater descaling device, first, when the telescopic mechanism 7 and the cleaning mechanism 8 are in a folded state, the folding mechanism 6, the telescopic mechanism 7 and the cleaning mechanism 8 are placed in the water tank, and the supporting plate 1 can be placed on the water tank for support. After the placement is completed, the folding mechanism 6 is opened to make the telescopic mechanism 7 and the cleaning mechanism 8 unfold outward. After unfolding, the telescopic mechanism 7 is opened to make the cleaning mechanism 8 close to the inner wall of the water tank. At this time, the water supply mechanism 4 can be opened, and the water supply mechanism 4 can draw water in the water tank 2 or the municipal water pipe into the rotating mechanism 5 and spray it out, and the water can be sprayed into the inner wall of the water tank. The rotating mechanism 5 is opened, and the rotating mechanism 5 can drive the folding mechanism 6 to rotate, thereby driving the telescopic mechanism 7 and the cleaning mechanism 8 to rotate, and the cleaning mechanism 8 can descale the inner wall of the water heater.

[0023] like Figure 2As shown, as a preferred embodiment of the present invention, the water supply mechanism 4 includes: a hard pipe 41, whose water inlet end is fixedly connected to the lower end of the water tank 2, a pump body 42 for pumping water out of the water tank 2 is installed on the hard pipe 41, and a sleeve 43 is fixedly connected to the water outlet end of the hard pipe 41, and the sleeve 43 is rotatably sleeved with the rotating mechanism 5; a hose 44, whose water outlet end is fixedly connected to the hard pipe 41, and a connector 45 is installed at the water inlet end, and the connector 45 is used to connect the hose 44 to the municipal pipeline, and a water diversion pipe 46 is fixedly provided on the hose 44, and the end of the water diversion pipe 46 away from the hose 44 is connected to the water tank 2; a first valve 47, which is installed on the water diversion pipe 46, and is used to control the opening and closing of the water diversion pipe 46, and a second valve 48 for controlling its opening and closing is installed on the hose 44, and a third valve 49 for controlling its opening and closing is installed on the hard pipe 41.

[0024] When cleaning and supplying water to the water heater, if the connecting head 45 is convenient to be connected to the municipal pipeline, the hose 44 is connected to the municipal pipeline through the connecting head 45, the first valve 47 is opened, the second valve 48 is closed, and the third valve 49 is closed, and the water in the municipal pipeline can flow from the hose 44 through the water diversion pipe 46 into the water tank 2, so that the water tank 2 can be supplied with water. After the water tank 2 is filled with water, the first valve 47 is closed, the second valve 48 is opened, and the third valve 49 is closed, and the water can flow from the hose 44 through the sleeve 43 into the rotating mechanism 5, and finally spray onto the inner wall of the air-energy water heater. If the connecting head 45 is not convenient to be connected to the municipal pipeline, the first valve 47, the second valve 48, the third valve 49 are closed, and the pump body 42 is started, and the water can flow from the hard pipe 41 through the sleeve 43 into the rotating mechanism 5, and finally spray onto the inner wall of the air-energy water heater.

[0025] like Figure 1 and Figure 2 As shown, as a preferred embodiment of the present invention, the rotating mechanism 5 includes: a supporting box 51, which is fixedly mounted on the supporting plate 1, a first power member 52 is fixedly mounted inside the supporting box 51, and the output shaft of the first power member 52 is fixedly connected to the first gear 53; a rotating tube 54, which is rotatably mounted on the supporting box 51, the sleeve 43 and the rotating tube 54 are rotatably sleeved, and the rotating tube 54 is fixedly provided with a second gear 55 meshing with the first gear 53; an inlet pipe 56, which passes through the supporting plate 1 and is fixedly connected to the rotating tube 54, the folding mechanism 6 is fixedly connected to the inlet pipe 56, and a micro nozzle 57 for spraying water is installed on the inlet pipe 56.

[0026] After water flows into the sleeve 43, it will flow into the rotating tube 54 and the inlet tube 56 in turn, and finally be sprayed out from the micro nozzle 57, so that water can be supplied to the air-energy water heater; when cleaning, turn on the first power component 52, the first power component 52 is specifically a motor, the output shaft of the first power component 52 drives the first gear 53 to rotate, the first gear 53 drives the second gear 55 and the rotating tube 54 to rotate, the rotating tube 54 drives the inlet tube 56 to rotate, thereby driving the folding mechanism 6, the telescopic mechanism 7 and the cleaning mechanism 8 to rotate, so that the water heater can be cleaned.

[0027] like Figure 3 As shown, as a preferred embodiment of the present invention, the folding mechanism 6 includes: a support sleeve 61, which is fixedly connected to the rotating mechanism 5 and is provided with a groove, a second power member 62 is fixedly installed in the support sleeve 61, and the output shaft of the second power member 62 is fixedly connected to the third gear 63; a threaded column 64, both ends of which are rotatably connected to the inner wall of the support sleeve 61, and a fourth gear 65 meshing with the third gear 63 is fixedly provided on one side of the threaded column 64; a double-sided rack 66, a threaded sleeve of which is arranged on the threaded column 64 and is slidably connected to the inner wall of the support sleeve 61, the double-sided rack 66 is meshed with an expansion and contraction gear 67 rotatably installed on the support sleeve 61, and two expansion and contraction gears 67 are provided and can rotate under the drive of the double-sided rack 66; a connecting frame 68, which is fixedly connected to the expansion and contraction gear 67, and the telescopic mechanism 7 and the connecting frame 68 are fixedly connected.

[0028] When the telescopic mechanism 7 is unfolded to both sides, the second power member 62 is turned on, the second power member 62 drives the third gear 63 to rotate, the third gear 63 drives the fourth gear 65 to rotate, the fourth gear 65 drives the threaded column 64 to rotate, and the threaded column 64 rotates to move the double-sided rack 66 downward, thereby driving the expansion and contraction gear 67 to rotate, and the expansion and contraction gear 67 can drive the telescopic mechanism 7 and the cleaning mechanism 8 to rotate upward and unfold, so that the water heater can be cleaned.

[0029] like Figure 4 As shown, as a preferred embodiment of the present invention, the telescopic mechanism 7 includes: a circular sleeve 71, which is fixedly connected to the connecting frame 68, a third power member 72 is fixedly installed in the circular sleeve 71, and the output shaft of the third power member 72 is fixedly connected to the active bevel gear 73; a screw rod 74, both ends of which are rotatably connected to the inner wall of the circular sleeve 71, and a driven bevel gear 75 meshing with the active bevel gear 73 is fixedly provided on one side of the screw rod 74; a guide rod 76, both ends of which are fixedly connected to the inner wall of the circular sleeve 71, and a moving block 77 threadedly connected to the screw rod 74 is sleeved on the guide rod 76; a buffer assembly 78, which is fixedly installed on the moving block 77, and an extension rod 79 is fixedly provided on the buffer assembly 78, and the end of the extension rod 79 away from the buffer assembly 78 is fixedly connected to the cleaning mechanism 8.

[0030] like Figure 4As shown, as a preferred embodiment of the present invention, the buffer assembly 78 includes: an inner box 781, which is fixedly mounted on the moving block 77, a slide rod 782 is fixedly arranged in the inner box 781, a slide plate 783 is sleeved on the slide rod 782, and an extension rod 79 and the slide plate 783 are fixedly connected; a buffer spring 784, both ends of which are respectively fixedly connected to the inner wall of the inner box 781 and the slide plate 783, for providing buffering for the cleaning mechanism 8.

[0031] When the cleaning mechanism 8 is controlled to be close to the inner wall of the water heater, the third power member 72 is turned on. The third power member 72 is embodied as a motor. The output shaft of the third power member 72 drives the active bevel gear 73 to rotate, and the active bevel gear 73 drives the driven bevel gear 75 and the screw rod 74 to rotate. The rotation of the screw rod 74 can make the moving block 77 drive the extension rod 79 to move outward along the buffer assembly 78, thereby driving the cleaning mechanism 8 to gradually stick to the inner wall of the water heater, and the buffer spring 784 can provide a buffer for the cleaning mechanism 8 to prevent the cleaning mechanism 8 from being damaged by excessive pressure from the water heater.

[0032] like Figure 5 As shown, as a preferred embodiment of the present invention, the cleaning mechanism 8 includes: a shaft 81, which is fixedly connected to the power output end of the telescopic mechanism 7, and cleaning plates 82 are rotatably provided at both ends of the shaft 81, the cleaning plate 82 has a slot, the shaft 81 is arranged in the slot, and a cleaning brush 83 is fixedly provided on the cleaning plate 82; a fixed block 84, which is fixedly installed on the shaft 81, and a return spring 85 is fixed between the fixed block 84 and the inner wall of the slot for pulling the cleaning plate 82 to rotate and return to its original position around the shaft 81.

[0033] When cleaning the water heater, the rotating mechanism 5 can drive the cleaning plate 82 to rotate, so as to clean the inner wall of the water heater. The design of the reset spring 85 can pull the cleaning plate 82 and the telescopic mechanism 7 vertically when the telescopic mechanism 7 is unfolded. When the telescopic mechanism 7 is folded, the cleaning plate 82 is blocked by the folding mechanism 6, and the cleaning plate 82 can gradually become parallel to the telescopic mechanism 7, ensuring that the folding mechanism 6, the telescopic mechanism 7 and the cleaning mechanism 8 can smoothly take out the water heater after the water heater is cleaned.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An air-energy water heater descaling device, comprising a bearing plate and a water tank, characterized in that: The water tank is mounted on the bearing plate and is provided with two of them, and a water adding bucket is fixedly provided on the upper ends of the two water tanks; A water supply mechanism, which is mounted on the bearing plate and connected to the water tank, and is used to pump water out of the water tank or introduce water into the water tank. The water supply mechanism is connected to a rotating mechanism mounted on the bearing plate, and the water supply mechanism can introduce water into the rotating mechanism and spray it out; A folding mechanism, which is fixedly connected to the rotating mechanism, the rotating mechanism is used to drive the folding mechanism to rotate, the power output end of the folding mechanism is fixedly connected to the telescopic mechanism, and the folding mechanism is used to control the expansion or folding of the telescopic mechanism; The cleaning mechanism is fixedly connected to the power output end of the telescopic mechanism and is used for cleaning the inner wall of the water tank of the water heater. The cleaning mechanism can be folded.

2. The descaling device for air-energy water heater according to claim 1, characterized in that: The water supply mechanism comprises: A hard pipe, whose water inlet end is fixedly connected to the lower end of the water tank, a pump body for pumping water out of the water tank is installed on the hard pipe, and a sleeve is fixedly connected to the water outlet end of the hard pipe, and the sleeve is rotatably sleeved with the rotating mechanism; A hose, whose water outlet end is fixedly connected to a hard pipe, and whose water inlet end is provided with a connector, which is used to connect the hose to a municipal pipeline. A water diversion pipe is fixedly provided on the hose, and one end of the water diversion pipe away from the hose is connected to a water tank; The first valve is installed on the water diversion pipe and is used to control the opening and closing of the water diversion pipe. The second valve for controlling the opening and closing of the flexible pipe is installed on the flexible pipe, and the third valve for controlling the opening and closing of the rigid pipe is installed on the rigid pipe.

3. The descaling device for air-energy water heater according to claim 2, characterized in that: The rotating mechanism comprises: A support box is fixedly mounted on the bearing plate, a first power member is fixedly mounted in the support box, and an output shaft of the first power member is fixedly connected to a first gear; A rotating tube is rotatably mounted on the supporting box, the sleeve and the rotating tube are rotatably sleeved, and a second gear meshing with the first gear is fixedly arranged on the rotating tube; The introduction pipe passes through the bearing plate and is fixedly connected to the rotating pipe. The folding mechanism is fixedly connected to the introduction pipe. A micro nozzle for spraying water is installed on the introduction pipe.

4. The descaling device for air-energy water heater according to claim 1, characterized in that: The folding mechanism comprises: A support sleeve, which is fixedly connected to the rotating mechanism and has a groove, a second power member is fixedly installed in the support sleeve, and a third gear is fixedly connected to the output shaft of the second power member; A threaded column, both ends of which are rotatably connected to the inner wall of the support sleeve, and a fourth gear meshing with the third gear is fixedly arranged on one side of the threaded column; A double-sided rack, whose threaded sleeve is arranged on the threaded column and is slidably connected with the inner wall of the support sleeve, and the double-sided rack is meshed with an expansion and contraction gear rotatably mounted on the support sleeve, and two expansion and contraction gears are provided and can rotate under the drive of the double-sided rack; The connecting frame is fixedly connected to the expansion and contraction gear, and the telescopic mechanism is fixedly connected to the connecting frame.

5. The descaling device for air-energy water heater according to claim 4, characterized in that: The telescopic mechanism comprises: A circular sleeve, which is fixedly connected to the connecting frame, a third power member is fixedly installed in the circular sleeve, and an output shaft of the third power member is fixedly connected to a driving bevel gear; The screw rod has two ends rotatably connected to the inner wall of the circular sleeve, and a driven bevel gear meshing with the driving bevel gear is fixedly arranged on one side of the screw rod; A guide rod, both ends of which are fixedly connected to the inner wall of the circular sleeve, and a moving block which is threadedly connected to the screw rod is sleeved on the guide rod; The buffer component is fixedly mounted on the moving block. An extension rod is fixedly arranged on the buffer component. One end of the extension rod away from the buffer component is fixedly connected to the cleaning mechanism.

6. The descaling device for air-energy water heater according to claim 5, characterized in that: The buffer assembly comprises: The inner box is fixedly mounted on the moving block, a slide bar is fixedly arranged in the inner box, a slide plate is sleeved on the slide bar, and the extension rod is fixedly connected to the slide plate; The buffer spring has two ends fixedly connected to the inner wall of the inner box and the slide plate respectively, and is used to provide buffering for the cleaning mechanism.

7. The descaling device for air-energy water heater according to claim 1, characterized in that: The cleaning mechanism comprises: A shaft rod is fixedly connected to the power output end of the telescopic mechanism, cleaning plates are rotatably arranged at both ends of the shaft rod, the cleaning plates are provided with slots, the shaft rod is arranged in the slots, and a cleaning brush is fixedly arranged on the cleaning plates; The fixed block is fixedly mounted on the shaft rod, and a reset spring used for pulling the cleaning plate to rotate around the shaft rod and reset is fixed between the fixed block and the inner wall of the notch.

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