Cleaning device and cleaning method for water pump parts

Abstract

The invention discloses a cleaning device and method for water pump parts, and belongs to the field of water pumps. The cleaning device for the water pump parts comprises a machine body and a limiting mechanism which is movably arranged on the machine body and used for fixing an opening part of a pump shell; the water spraying mechanism comprises a water spraying pipe, the water spraying pipe and the limiting mechanism move synchronously, and the water spraying mechanism is used for spraying water into the pump shell; the water injection mechanism is arranged on the machine body and used for injecting water into the machine body; the ultrasonic generator is arranged on the machine body and used for generating ultrasonic vibration. The water pump shell cleaning device has the advantage of improving the cleaning effect and efficiency of the water pump shell.

Description

Technical Field

[0001] The present application relates to the field of water pumps, and in particular to a cleaning device and a cleaning method for water pump parts. Background Art

[0002] As an indispensable power equipment in the fields of industry, agriculture, and domestic water, water pumps generate pressure energy through impellers to transport liquids. Before assembling the water pump, the cleanliness of the water pump parts directly affects the performance, life, and operating efficiency of the water pump. Among them, the cleaning of the water pump casing is of utmost importance. After production and processing, the water pump casing often has stains caused by metal powder, lubricating oil, etc., and needs to be cleaned before the water pump can be assembled.

[0003] The pump casing is generally provided with a water inlet, a water outlet and a mounting port. The flow channel connected to the water outlet is spiral-shaped so that the water pump can generate sufficient pressure. However, since the water pump is currently cleaned manually, after the human hand reaches into the water outlet, the depth of the flow channel that the human hand can reach is limited due to the spiral structure of the flow channel. If the human hand reaches into the mounting port, the distance between the mounting port and the flow channel is too large, which also limits the depth of the cleaning flow channel, resulting in low cleaning effect and efficiency. Summary of the invention

[0004] In order to improve the cleaning effect and efficiency of a water pump casing, the present application provides a cleaning device and a cleaning method for water pump parts.

[0005] In the first aspect, the cleaning device for water pump parts provided in the present application adopts the following technical solution: A cleaning device for pump parts, including the pump body, and: A limiting mechanism, movably arranged on the machine body, for fixing the opening of the pump casing; A water spray mechanism, comprising a water spray pipe, the water spray pipe moves synchronously with the limiting mechanism, and the water spray mechanism is used to spray water into the pump housing; A water injection mechanism, disposed on the machine body, for injecting water into the machine body; The ultrasonic generator is arranged on the machine body and is used for generating ultrasonic vibration.

[0006] By adopting the above technical solution, the limiting mechanism keeps the pump casing in a fixed position during cleaning to avoid collision during the cleaning process. At the same time, the water spray pipe and the limiting mechanism are moved synchronously. After the pump casing is fixed, the inside of the pump casing can be immediately sprayed with water for cleaning, thereby improving the cleaning efficiency and eliminating the trouble of manually inserting hands into the pump casing for cleaning. In addition to spraying water for cleaning, water is injected into the body, and ultrasonic vibration is performed after water injection to further clean the entire body, thereby improving the cleaning effect.

[0007] Optionally, the opening of the pump casing includes a water outlet, a water inlet and an installation port, the limiting mechanism includes a first limiting assembly, a second limiting assembly and a third limiting assembly, the water spray pipe includes a first water spray pipe and a second water spray pipe, the first limiting assembly is used to compress and limit the water outlet portion of the pump casing, the second limiting assembly is used to compress and limit the water inlet portion of the pump casing, the third limiting assembly is used to compress and limit the installation port portion of the pump casing and block the installation port, the first water spray pipe moves synchronously with the first limiting assembly, and the second water spray pipe moves synchronously with the second limiting assembly.

[0008] By adopting the above technical solution, when the first water spray pipe moves with the first limiting component to the water outlet of the pump housing, it can spray water to clean the area in a targeted manner, effectively removing dirt and residues at the water outlet; when the second water spray pipe moves with the second limiting component to the water inlet of the pump housing, it can also spray water to clean the water inlet accurately, ensuring that the water inlet is unobstructed. At the same time, the first water spray pipe and the second water spray pipe spray water to fill the inside of the pump housing with flowing water, greatly improving the coverage of the cleaning inside the pump housing. The third limiting component can not only press and limit the installation port of the pump housing to prevent the pump housing from moving or shaking during the cleaning process, but also block the installation port to prevent the cleaning water from flowing out of the installation port, thereby improving the cleaning effect.

[0009] Optionally, the pump casing is placed upright during cleaning.

[0010] Optionally, the first limiting assembly includes a first driving member, a first connecting ring and a first connecting frame, the output end of the first driving member is connected to the first connecting frame, the first connecting frame is connected to the first connecting ring, the first water spray pipe is connected to the first connecting frame, and the first connecting ring is used to be connected in contact with the water outlet of the pump casing.

[0011] By adopting the above technical solution, the first connecting ring is designed to be circular in shape in coordination with the water spout, thereby ensuring sufficient compression of the water spout, and the first connecting frame drives the first water spray pipe to move synchronously.

[0012] Optionally, the second limiting assembly includes a second driving member, a second connecting ring and a second connecting frame, the output end of the second driving member is connected to the second connecting frame, the second connecting frame is connected to the second connecting ring, the second water spray pipe is connected to the second connecting frame, and the second connecting ring is used to be connected to the water inlet of the pump casing in an abutting manner.

[0013] By adopting the above technical solution, the second connecting ring is designed to be circular in shape in conjunction with the water inlet, ensuring sufficient compression of the water inlet, and the second connecting frame drives the second water spray pipe to move synchronously.

[0014] Optionally, the third limiting assembly includes a third driving member and a sealing plate, the third driving member is connected to the sealing plate, and the sealing plate is used to contact and connect with the installation opening of the pump housing and seal the installation opening.

[0015] By adopting the above technical solution, when cleaning the inside of the pump casing, blocking the installation opening can prevent water from flowing out of the installation opening, so that the water flows along a predetermined path and flushes.

[0016] Optionally, the first water spray pipe includes a first straight section and a first soft section, the first straight section is connected to the first soft section, the first straight section is connected to the first connecting frame, the first straight section is passed through and slidably connected to the body, the first soft section is located outside the body, and the first soft section is used to connect to a tap water pipe.

[0017] By adopting the above technical solution, the first water spray pipe can move along with the movement of the first limiting component.

[0018] Optionally, a rotating blade is rotatably connected inside the first straight section, and the inner wall of the first straight section is provided with a plurality of arc-shaped protrusions along the circumferential direction.

[0019] By adopting the above technical solution, the rotating blades and the arc-shaped protrusions provide the water flow with a rotating tendency, so that a vortex is formed when the water flows through the first straight section. The water flow with the vortex can form a stronger flushing force when flowing through the throat and volute chamber in the pump casing. In addition, when the first water spray pipe and the second water spray pipe spray water at the same time to form a water flow collision, the liquid is fully driven to shake violently, thereby improving the cleaning effect.

[0020] Optionally, the second water spray pipe includes a second straight section and a second soft section, the second straight section is connected to the second soft section, the second soft section is connected to the second connecting frame, the second straight section is passed through the body, and the second straight section is used to connect to the tap water pipe.

[0021] By adopting the above technical solution, the second water spray pipe can move along with the movement of the second limiting assembly.

[0022] In the second aspect, the cleaning method of the water pump parts provided in the present application adopts the following technical solution: The cleaning method of water pump parts includes the following steps: Start the limiting mechanism to fix the pump casing inside the machine body; Start the water spray mechanism to spray water into the pump casing for flushing; Start the water injection mechanism and inject water into the machine body so that the water level overflows the pump casing; Start the ultrasonic generator to generate ultrasonic vibration in the water to complete the cleaning of the pump casing.

[0023] Optionally, in the process of starting the limiting mechanism and starting the water spraying mechanism, the first limiting component presses and limits the water outlet of the pump casing, the second limiting component presses and limits the water inlet of the pump casing, the third limiting component presses and limits the installation port of the pump casing and blocks the installation port, the first water spray pipe and the second water spray pipe spray water in turn to flush the inside of the pump casing, and finally the first water spray pipe and the second water spray pipe spray water at the same time to form convection inside the pump casing to flush the inside of the pump casing.

[0024] In summary, this application has the following beneficial effects: 1. The limit mechanism keeps the pump casing in a fixed position during cleaning to avoid collision during the cleaning process. At the same time, the water spray pipe and the limit mechanism are moved synchronously. After the pump casing is fixed, the inside of the pump casing can be sprayed with water for cleaning immediately, which improves the cleaning efficiency and eliminates the trouble of manually inserting hands into the pump casing for cleaning. In addition to spraying water for cleaning, water is injected into the body, and ultrasonic vibration is performed after water injection to further clean the entire body, thereby improving the cleaning effect.

[0025] 2. When the first water spray pipe moves with the first limiting component to the water outlet of the pump housing, it can spray water to clean the area in a targeted manner, effectively removing dirt and residues at the water outlet; when the second water spray pipe moves with the second limiting component to the water inlet of the pump housing, it can also spray water to clean the water inlet accurately, ensuring that the water inlet is unobstructed. At the same time, the first and second water spray pipes spray water to fill the inside of the pump housing with flowing water, greatly improving the coverage of the cleaning inside the pump housing. The third limiting component can not only press and limit the installation port of the pump housing to prevent the pump housing from moving or shaking during the cleaning process, but also block the installation port to prevent the cleaning water from flowing out of the installation port, thereby improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structural diagram of the water pump casing.

[0027] Figure 2 It is a cross-sectional structural diagram of a cleaning device for water pump parts according to an embodiment of the present application.

[0028] Figure 3 This is a cross-sectional structural diagram from another angle of the cleaning device for water pump parts in an embodiment of the present application.

[0029] Figure 4 It is a cross-sectional structural diagram of the first straight section of an embodiment of the present application.

[0030] Figure 5 This is another angle cross-sectional structural diagram of the first straight section of the embodiment of the present application.

[0031] Description of reference numerals: 1. Pump casing; 11. Water inlet; 12. Water outlet; 13. Mounting port; 2. Machine body; 3. Water injection mechanism; 4. Ultrasonic generator; 5. First limiting assembly; 51. First driving member; 52. First connecting ring; 53. First connecting frame; 6. Second limiting assembly; 61. Second driving member; 62. Second connecting ring; 63. Second connecting frame; 7. Third limiting assembly; 71. Third driving member; 72. Sealing plate; 8. First water spray pipe; 81. First straight section; 82. First soft section; 83. Rotating blade; 84. Arc-shaped protrusion; 9. Second water spray pipe; 91. Second straight section; 92. Second soft section. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-5 This application is described in further detail.

[0033] like Figure 1 As shown, the water pump component is specifically a pump housing 1 , and the pump housing 1 is provided with a plurality of openings, including a water inlet 11 , a water outlet 12 and a mounting port 13 .

[0034] The present application discloses a cleaning device for water pump parts. Figure 2 As shown, the cleaning device for water pump parts includes a body 2, a limiting mechanism, a water spraying mechanism, a water injection mechanism 3 and an ultrasonic generator 4. When cleaning is required, the pump housing 1 is placed inside the body 2, and the pump housing 1 is in an upright state.

[0035] The body 2 is specifically a hollow cubic structure, and the pump housing 1 and water for cleaning can be accommodated inside the body 2.

[0036] The limiting mechanism is movably arranged on the body 2, and is used to fix the opening part of the pump housing 1. Specifically, the opening part refers to the edge entity located around the opening in the pump housing 1, so the opening part includes the edge entity located around the water inlet 11 in the pump housing 1, the edge entity located around the water outlet 12 in the pump housing 1, and the edge entity located around the installation port 13 in the pump housing 1.

[0037] like Figure 2 and Figure 3 As shown, the limiting mechanism includes a first limiting assembly 5, a second limiting assembly 6 and a third limiting assembly 7. The first limiting assembly 5 is used to press and limit the water outlet 12 of the pump casing 1, the second limiting assembly 6 is used to press and limit the water inlet 11 of the pump casing 1, and the third limiting assembly 7 is used to press and limit the installation port 13 of the pump casing 1 and block the installation port 13.

[0038] The first limiting assembly 5 includes a first driving member 51, a first connecting ring 52 and a first connecting frame 53. The first driving member 51 is specifically a cylinder. Two first driving members 51 are provided. The first driving member 51 is installed on the top wall of the body 2. The output end of the first driving member 51 extends into the interior of the body 2 and is fixedly connected to the first connecting frame 53. The first connecting frame 53 is fixedly connected to the first connecting ring 52. The first connecting ring 52 is a circular structure, which matches the shape of the water outlet 12 of the pump casing 1. The first connecting ring 52 is used for contact connection with the water outlet 12 of the pump casing 1.

[0039] The output end of the first driving member 51 extends downward, driving the first connecting ring 52 to press the water outlet 12 of the pump housing 1, thereby limiting and fixing the pump housing 1 in the vertical direction, thereby improving the stability of the pump housing 1 during cleaning.

[0040] The second limiting assembly 6 includes a second driving member 61, a second connecting ring 62 and a second connecting frame 63. The second driving member 61 is specifically a cylinder. There are two second driving members 61 in total. The second driving member 61 is installed on the side wall of the body 2. The output end of the second driving member 61 extends into the interior of the body 2 and is fixedly connected to the second connecting frame 63. The second connecting frame 63 is fixedly connected to the second connecting ring 62. The second connecting ring 62 is a circular structure, which matches the shape of the water inlet 11 of the pump casing 1. The second connecting ring 62 is used for contact connection with the water inlet 11 of the pump casing 1.

[0041] The third limiting assembly 7 includes a third driving member 71 and a sealing plate 72. The third driving member 71 is specifically a cylinder. Two third driving members 71 are provided. The third driving member 71 is installed on the side wall of the body 2 away from the second driving member 61. The output end of the third driving member 71 extends into the interior of the body 2 and is fixedly connected to the sealing plate 72. The sealing plate 72 is a plate-shaped structure and its area is larger than the area of ​​the installation port 13. The sealing plate 72 is used to contact and connect with the water inlet 11 of the pump casing 1 and completely cover and seal the installation port 13.

[0042] The output end of the second driving member 61 extends in the horizontal direction, driving the second connecting ring 62 to press the water inlet 11 of the pump casing 1. The output end of the third driving member 71 extends in the horizontal direction, driving the sealing plate 72 to press the installation port 13 of the pump casing 1, thereby cooperating to limit and fix the pump casing 1 in the horizontal direction, thereby improving the stability of the pump casing 1 during cleaning.

[0043] The water spraying mechanism includes a water spraying pipe, and the water spraying pipe includes a first water spraying pipe 8 and a second water spraying pipe 9. The first water spraying pipe 8 moves synchronously with the first limiting assembly 5, and the second water spraying pipe 9 moves synchronously with the second limiting assembly 6.

[0044] Specifically, the first water spray pipe 8 includes a first straight section 81 and a first soft section 82, the first straight section 81 is made of a hard tube structure, the first soft section 82 is made of a flexible tube structure, the first straight section 81 is fixedly connected to the first soft section 82, the first straight section 81 is fixedly connected to the first connecting frame 53, so that the first water spray pipe 8 and the first limiting component 5 can move synchronously, the first straight section 81 is penetrated and slidably connected to the body 2, the first soft section 82 is located outside the body 2, the first soft section 82 is used to communicate with the tap water pipe, and the flexible structure of the first soft section 82 enables the first straight section 81 to maintain water input when sliding, so that while the first limiting component 5 presses the water outlet 12 of the pump casing 1, water is sprayed to the inside of the pump casing 1 through the first water spray pipe 8, and under the action of the sealing plate 72, water rushes in from the water outlet 12 and rushes out from the water inlet 11, taking away the dirt inside the pump casing 1, eliminating the trouble of manually reaching into the inside of the pump casing 1 for cleaning, and quickly cleaning the inside of the pump casing 1.

[0045] The second water spray pipe 9 includes a second straight section 91 and a second soft section 92. The second straight section 91 is made of a hard tube structure, and the second soft section 92 is made of a flexible tube structure. The second straight section 91 is fixedly connected to the second soft section 92, and the second soft section 92 is connected to the second connecting frame 63, so that the first water spray pipe 8 and the first limiting component 5 can move synchronously. The second straight section 91 is fixedly penetrated into the body 2, and the second straight section 91 is used to communicate with the tap water pipe. The flexible structure of the second soft section 92 enables the second soft section 92 to maintain water input when moving, so that when the second limiting component 6 presses the water inlet 11 of the pump casing 1, water is sprayed to the inside of the pump casing 1 through the second water spray pipe 9. Under the action of the sealing plate 72, water rushes in from the water inlet 11 and rushes out from the water outlet 12, taking away the dirt inside the pump casing 1, eliminating the trouble of manually reaching into the inside of the pump casing 1 for cleaning, and quickly cleaning the inside of the pump casing 1.

[0046] A certain distance is left between the first straight section 81 and the first connecting ring 52 so that the first straight section 81 does not exceed the first connecting ring 52. When the first water spray pipe 8 and the second water spray pipe 9 spray water in turn, the kinetic energy of the water is reduced due to the throat and the volute of the pump housing 1. Therefore, the water flows between the straight section 81 and the first connecting ring 52, reducing the situation where the water sprayed from the first water spray pipe 8 flows into the second water spray pipe 9. Similarly, a certain distance is left between the second soft section 92 and the second connecting ring 62 so that the second soft section 92 does not exceed the second connecting ring 62, so as to reduce the situation where the water sprayed from the second water spray pipe 9 flows into the first water spray pipe 8. In addition, a one-way valve can be provided inside the second soft section 92 to further reduce the situation where water flows into the second water spray pipe 9.

[0047] like Figure 4 and Figure 5As shown, the first straight section 81 is internally connected with a rotating blade 83, the rotation axis of the rotating blade 83 is the same as the axis of the first straight section 81, and the inner wall of the first straight section 81 is provided with a plurality of arc-shaped protrusions 84 along the circumferential direction. The rotating blade 83 and the arc-shaped protrusions 84 provide a rotating tendency for the water flow, so that a vortex is formed when the water flows through the first straight section 81. The water flow with the vortex can form a stronger flushing force when it flows through the throat and the volute chamber in the pump housing 1. In addition, when the first water spray pipe 8 and the second water spray pipe 9 spray water at the same time to form a water flow collision, the liquid is fully driven to shake violently, thereby improving the cleaning effect.

[0048] like Figure 2 As shown, the water injection mechanism 3 and the ultrasonic generator 4 are both installed on the body 2. The water injection mechanism 3 includes a water injection pipe, which is used to connect with the tap water pipeline. The water injection pipe injects water into the body 2 so that the water level overflows the pump casing 1. The ultrasonic generator 4 is used to generate ultrasonic vibrations. The ultrasonic wave forms countless tiny bubbles in the water. These bubbles are continuously formed and burst under the action of pressure, generating a strong impact force to peel off the dirt on the surface of the pump casing 1, thereby achieving a further cleaning effect.

[0049] The present application also discloses a method for cleaning water pump parts, comprising the following steps: Start the limiting mechanism to fix the pump housing 1 inside the machine body 2; Start the water spray mechanism to spray water into the pump housing 1 for flushing; Start the water injection mechanism 3 to inject water into the body 2 so that the water level overflows the pump housing 1; The ultrasonic generator 4 is started to generate ultrasonic vibration in the water to complete the cleaning of the pump housing 1.

[0050] Specifically, in the process of starting the limiting mechanism and starting the water spraying mechanism, the first limiting component 5 presses and limits the water outlet 12 of the pump casing 1, the second limiting component 6 presses and limits the water inlet 11 of the pump casing 1, and the third limiting component 7 presses and limits the installation port 13 of the pump casing 1 and blocks the installation port 13.

[0051] First, the first water spray pipe 8 and the second water spray pipe 9 spray water in turn to flush the inside of the pump casing 1 from different directions. For the difficult-to-clean spiral bend parts in the pump casing 1, it can quickly peel off dirt and avoid the trouble of manually reaching into the pump casing 1 for cleaning.

[0052] Finally, the first water spray pipe 8 and the second water spray pipe 9 spray water simultaneously to form convection inside the pump casing 1 to flush the inside of the pump casing 1. The water spraying amount is controlled so that the water inside the pump casing 1 just fills the inside of the pump casing 1, further improving the effect and efficiency of cleaning the pump casing 1.

[0053] This specific implementation manner is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make non-creative modifications to the specific implementation manner as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A cleaning device for water pump parts, characterized in that: It comprises a body (2), and: A limiting mechanism, movably arranged on the machine body (2), and used for fixing the opening portion of the pump casing (1); A water spray mechanism, comprising a water spray pipe, the water spray pipe and the limiting mechanism move synchronously, and the water spray mechanism is used to spray water into the interior of the pump casing (1); A water injection mechanism (3), arranged on the machine body (2), and used for injecting water into the interior of the machine body (2); An ultrasonic generator (4) is arranged on the machine body (2) and is used to generate ultrasonic vibrations.

2. The cleaning device for water pump parts according to claim 1, characterized in that: The opening of the pump housing (1) comprises a water outlet (12), a water inlet (11) and a mounting opening (13); the limiting mechanism comprises a first limiting assembly (5), a second limiting assembly (6) and a third limiting assembly (7); the water spray pipe comprises a first water spray pipe (8) and a second water spray pipe (9); the first limiting assembly (5) is used for pressing and limiting the water outlet (12) of the pump housing (1); the second limiting assembly (6) is used for pressing and limiting the water inlet (11) of the pump housing (1); the third limiting assembly (7) is used for pressing and limiting the mounting opening (13) of the pump housing (1) and blocking the mounting opening (13); the first water spray pipe (8) moves synchronously with the first limiting assembly (5); and the second water spray pipe (9) moves synchronously with the second limiting assembly (6).

3. The cleaning device for water pump parts according to claim 2, characterized in that: The first limiting assembly (5) comprises a first driving member (51), a first connecting ring (52) and a first connecting frame (53); the output end of the first driving member (51) is connected to the first connecting frame (53); the first connecting frame (53) is connected to the first connecting ring (52); the first water spray pipe (8) is connected to the first connecting frame (53); and the first connecting ring (52) is used for contact connection with the water outlet (12) of the pump housing (1).

4. The cleaning device for water pump parts according to claim 2, characterized in that: The second limiting assembly (6) comprises a second driving member (61), a second connecting ring (62) and a second connecting frame (63); the output end of the second driving member (61) is connected to the second connecting frame (63); the second connecting frame (63) is connected to the second connecting ring (62); the second water spray pipe (9) is connected to the second connecting frame (63); and the second connecting ring (62) is used for contact connection with the water inlet (11) of the pump housing (1).

5. The cleaning device for water pump parts according to claim 2, characterized in that: The third limiting assembly (7) comprises a third driving member (71) and a blocking plate (72); the third driving member (71) is connected to the blocking plate (72); the blocking plate (72) is used to contact and connect with the mounting opening (13) of the pump housing (1) and block the mounting opening (13).

6. The cleaning device for water pump parts according to claim 3, characterized in that: The first water spray pipe (8) comprises a first straight section (81) and a first soft section (82); the first straight section (81) is connected to the first soft section (82); the first straight section (81) is connected to the first connecting frame (53); the first straight section (81) is passed through and slidably connected to the machine body (2); the first soft section (82) is located outside the machine body (2); and the first soft section (82) is used to communicate with a tap water pipeline.

7. The cleaning device for water pump parts according to claim 6, characterized in that: The first straight section (81) is rotatably connected with a rotating blade (83) inside, and the inner wall of the first straight section (81) is provided with a plurality of arc-shaped protrusions (84) along the circumferential direction.

8. The cleaning device for water pump parts according to claim 4, characterized in that: The second water spray pipe (9) comprises a second straight section (91) and a second soft section (92); the second straight section (91) is connected to the second soft section (92); the second soft section (92) is connected to the second connecting frame (63); the second straight section (91) is passed through the machine body (2); and the second straight section (91) is used to communicate with a tap water pipeline.

9. A method for cleaning water pump parts, based on the cleaning device for water pump parts according to any one of claims 1 to 8, characterized in that: The following steps are involved: The limiting mechanism is activated to fix the pump housing (1) inside the machine body (2); The water spray mechanism is started to spray water into the interior of the pump casing (1) for flushing; Starting the water injection mechanism (3) to inject water into the machine body (2) so that the water level overflows the pump casing (1); The ultrasonic generator (4) is started to generate ultrasonic vibration in the water, thereby completing the cleaning of the pump casing (1).

10. The cleaning device for water pump parts according to claim 9, characterized in that: In the process of starting the limiting mechanism and the water spraying mechanism, the first limiting component (5) presses and limits the water outlet (12) of the pump housing (1), the second limiting component (6) presses and limits the water inlet (11) of the pump housing (1), the third limiting component (7) presses and limits the installation opening (13) of the pump housing (1) and blocks the installation opening (13), the first water spraying pipe (8) and the second water spraying pipe (9) spray water in turn to flush the inside of the pump housing (1), and finally the first water spraying pipe (8) and the second water spraying pipe (9) spray water simultaneously to form convection inside the pump housing (1) to flush the inside of the pump housing (1).

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