Water inlet structure and water-cooled water pump

Abstract

The utility model relates to water cooling water pump technical field, concretely relates to a water inlet structure and water cooling water pump, including main pump body, water supply pipe and cooling pipe, the upper part of main pump body is provided with cavity, the lower part of cavity is provided with mounting cavity, the inside of mounting cavity is provided with pump shaft. The utility model discloses through setting up auxiliary chamber in one side of main pump body, and through the flow -through groove, the inside space of auxiliary chamber is communicated with mounting cavity, when the temperature in pump body rises, the high pressure air in mounting cavity can pass through the flow -through groove and enter the inside of auxiliary chamber, through the design adjustment one -way air valve of the inside setting of auxiliary chamber, makes the pressure in mounting cavity once reaches critical point, will radiate to the air in pump body outside, makes the pressure in pump body inside always in normal state, effectively avoided the problem that the sealing sleeve assembly displacement led to mounting cavity in liquid leakage erosion pump body internal part because of pressure too big.

Description

Technical Field

[0001] This utility model relates to the field of water-cooled water pump technology, specifically to a water inlet structure and a water-cooled water pump. Background Technology

[0002] The drive motors of lawnmower robots typically need to operate at high power continuously to complete lawn mowing tasks, generating a significant amount of heat, especially during prolonged operation or under heavy loads. Relying solely on air cooling (such as fan cooling) is insufficient to meet efficient heat dissipation requirements, leading to overheating, performance degradation, and even damage to the motor. Current technologies generally require water cooling systems that use circulating water to remove heat, offering higher cooling efficiency than fan cooling. Water pumps deliver cooling water to the core components of the motor, directly lowering its operating temperature and preventing problems such as increased resistance and insulation aging caused by high temperatures, thus ensuring long-term stable motor operation.

[0003] In existing technologies, due to robot size limitations, water-cooled pumps are typically installed in the same space as the robot's drive motor. Since the heat generated during motor operation is conducted to the robot's casing, and the water-cooled pump only cools the motor, prolonged operation leads to external heat transfer into the pump body. This heats the air in the pump's sealed cavity, increasing pressure within the pump. This air pressure continuously acts on the internal sealing components during operation. Since the sealing rings are mostly made of elastic chemical rubber, the high-pressure air inside the pump continuously pushes the sealing rings, causing them to shift or even deform and detach from the sealing connector, leading to seal failure. Coolant then enters the pump body from the cavity, corroding internal components such as bearings and the pump shaft, damaging the pump and preventing it from operating normally. Consequently, the robot's internal motor does not receive effective cooling, causing it to operate under constant load.

[0004] Therefore, it is necessary to invent a water inlet structure and a water-cooled water pump to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a water inlet structure and a water-cooled water pump to solve the problem mentioned in the background art that the high-pressure air in the pump body will continuously push the sealing ring assembly, causing the sealing ring to displace or even deform and detach from the sealing connection.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a water-cooled pump, comprising a main pump body, a water supply pipe, and a cooling pipe. The upper part of the main pump body has a cavity, and the lower part of the cavity has an installation cavity. A pump shaft is disposed inside the installation cavity. An impeller, a separator ring, a limiting ring, a sealing plate, and a transmission wheel are sequentially fixed to the upper and lower parts of the surface of the pump shaft. A sealing sleeve is fixed to the inner side of the main pump body, and one end of the sealing sleeve is fixed to the inner side of the separator ring. An auxiliary cavity is disposed on one side of the inner cavity of the main pump body. A flow groove is disposed between the auxiliary cavity and the installation cavity. An end cap is threaded onto the outer wall of the water supply pipe, and a sealing pipe seat is fixedly connected through the side wall of the end cap.

[0007] In one embodiment, a water outlet pipe is provided on one side of the cooling pipe, and a bearing is fixedly connected to the lower part of the mounting cavity, with the inner wall of the bearing being fixedly connected to the surface of the pump shaft.

[0008] In one embodiment, a connecting plate is bolted to one end of the cooling pipe, a liquid cooling plate is fixedly connected through the inner side of the connecting plate, and a motor is connected to one end of the liquid cooling plate.

[0009] In one embodiment, one end of the outer wall of the water supply pipe is connected to a connecting pump pipe, and the other end of the connecting pump pipe is bolted to the top of the main pump body. The connecting pump pipe has an inlet chamber inside, and the inlet chamber is connected to the cavity.

[0010] In one embodiment, a one-way air valve is connected to the bottom of the auxiliary cavity.

[0011] In one embodiment, a limiting ring groove is formed inside the main pump body, and the outer wall of the limiting ring groove is rotatably sleeved with the surface of the limiting ring. Through holes are formed on both sides of the limiting ring groove.

[0012] A water inlet structure is disposed inside a water supply pipe. The water inlet structure includes a cleaning mechanism, which comprises a fixing ring and a positioning groove. One end of the fixing ring is fixedly connected to a spring. A positioning rod is slidably connected to the inner side of the positioning groove. One end of the positioning rod is fixedly connected to a connecting rod. One end of the connecting rod is fixedly connected to a placement cylinder. A filter kit is snapped into the interior of the placement cylinder. The inner wall of the sealing tube seat is rotatably connected to the outer wall of the connecting rod. One end of the positioning groove has an unlocking groove.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] 1. By setting an auxiliary chamber on one side of the main pump body and connecting the internal space of the auxiliary chamber with the installation chamber through a flow groove, when the temperature inside the pump body rises, the high-pressure air in the installation chamber will pass through the flow groove into the auxiliary chamber. By designing and adjusting the opening threshold of the one-way air valve set inside the auxiliary chamber, once the pressure inside the installation chamber reaches the critical point, it will be dissipated into the air outside the pump body, so that the internal pressure of the pump body is always in a normal state. This effectively avoids the problem of leakage in the installation chamber and corrosion of the internal parts of the pump body due to excessive pressure causing displacement of the sealing sleeve assembly.

[0015] 2. By setting up a water inlet structure, the pump body drives the coolant to flow back and forth in the water supply pipe and cooling pipe during operation. This allows the coolant to repeatedly pass through the filter kit. The filter element in the inner cavity of the placement cylinder filters the coolant, keeping the coolant entering the cooling pipe pure. This prevents particulate impurities carried in the coolant from adhering to the liquid cooling plate and reducing the cooling effect of the water-cooled pump. By rotating the positioning rod, it can be moved between the positioning slot and the unlocking slot, making it easy for the user to quickly pull out the filter element in the placement cylinder for replacement, thus keeping the coolant in the circulation pipeline clean. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a front view of the overall structure of this utility model;

[0018] Figure 2 This is a side view of the overall structure of this utility model;

[0019] Figure 3 This is a schematic diagram of part of the connection structure of this utility model;

[0020] Figure 4 This is a cross-sectional view of the water inlet structure of this utility model;

[0021] Figure 5 This is a cross-sectional view of the internal connection structure of the main pump body of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Main pump body; 2. Water supply pipe; 3. Cooling pipe; 4. Cavity; 5. Mounting cavity; 6. Pump shaft; 7. Impeller; 8. Separator ring; 9. Limiting ring; 10. Sealing plate; 11. Drive wheel; 12. Sealing sleeve; 13. Auxiliary cavity; 14. Flow groove; 15. Cleaning mechanism; 151. Fixing ring; 152. Positioning groove; 153. Spring; 154. Positioning rod; 155. Connecting rod; 156. Placement cylinder; 157. Filter kit; 16. Water outlet pipe; 17. Bearing; 18. End cap; 19. Sealing pipe seat; 20. Unlocking groove; 21. Connecting seat plate; 22. Liquid cooling plate; 23. Motor; 24. Connecting pump pipe; 25. Water inlet cavity; 26. One-way air valve; 27. Limiting ring groove. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] Example 1

[0026] This utility model provides, for example Figure 1-5 The water-cooled pump shown includes a main pump body 1, a water supply pipe 2, and a cooling pipe 3. The upper part of the main pump body 1 has a cavity 4, and the lower part of the cavity 4 has an installation cavity 5. The pump shaft 6 is arranged inside the installation cavity 5. An impeller 7, a partition ring 8, a limiting ring 9, a sealing plate 10, and a transmission wheel 11 are sequentially fixed to the upper and lower parts of the surface of the pump shaft 6. A sealing sleeve 12 is fixed to the inner side of the main pump body 1, and one end of the sealing sleeve 12 is fixed to the inner side of the partition ring 8. An auxiliary cavity 13 is opened on one side of the inner cavity of the main pump body 1. A flow groove 14 is opened between the auxiliary cavity 13 and the installation cavity 5. An end cap 18 is threadedly connected to the outer wall of the water supply pipe 2, and a sealing pipe seat 19 is fixedly connected through the side wall of the end cap 18.

[0027] A water outlet pipe 16 is provided on one side of the cooling pipe 3. A bearing 17 is fixedly connected to the lower part of the inner cavity of the mounting cavity 5, and the inner wall of the bearing 17 is fixedly connected to the surface of the pump shaft 6. A connecting seat plate 21 is bolted to one end of the cooling pipe 3. A liquid cooling plate 22 is fixedly connected through the inner side of the connecting seat plate 21. A motor 23 is connected to one end of the liquid cooling plate 22. A connecting pump pipe 24 is connected to one end of the outer wall of the water supply pipe 2, and the other end of the connecting pump pipe 24 is bolted to the top of the main pump body 1. A water inlet chamber 25 is provided inside the connecting pump pipe 24, and the water inlet chamber 25 is connected to the cavity 4. A one-way air valve 26 is connected to the bottom of the inner cavity of the auxiliary cavity 13. A limiting ring groove 27 is provided inside the main pump body 1, and the outer wall of the limiting ring groove 27 is rotatably sleeved with the surface of the limiting ring 9. Through holes are provided on both sides of the limiting ring groove 27.

[0028] Specifically, such as Figure 1 - Figure 4 As shown, during use, the outlet pipe 16 serves as a drain port to discharge the coolant in the cooling pipe 3, allowing the coolant to enter the circulation pipe. The bearing 17 is installed in the pump body to limit the pump shaft 6 and assist the pump shaft 6 in rotating. The bottom of the connecting base plate 21 is connected to the motor 23 and the cooling medium liquid cooling plate 22. One end of the liquid cooling plate 22 passes through the connecting base plate 21, allowing the coolant to exchange heat with the motor 23 through the liquid cooling plate 22, thereby dissipating heat from the motor 23.

[0029] After the impeller 7 rotates, a negative pressure is formed in the water inlet chamber 25 in the pump pipe 24. The high-speed rotation of the impeller 7 throws the coolant to one side of the water supply pipe 2, serving as an extension structure of the main pump body 1, which facilitates the disassembly, assembly and maintenance of the main pump body 1.

[0030] The air in the auxiliary chamber 13 is discharged from the main pump body 1 after reaching the pressure threshold set by the one-way air valve 26; the limiting ring groove 27 can ensure that the pump shaft 6, bearing 17 and sealing sleeve 12 are installed in place when the water pump is installed, and at the same time, as a limiting component, it ensures that the above components are in the normal installation position during operation.

[0031] Example 2

[0032] Reference Figure 1 - Figure 5 This embodiment is based on the previous embodiment, but differs in that it also includes a water inlet structure. The water inlet structure is disposed inside the water supply pipe 2. The water inlet structure includes a cleaning mechanism 15, which includes a fixing ring 151 and a positioning groove 152. One end of the fixing ring 151 is fixedly connected to a spring 153. The inner side of the positioning groove 152 is slidably connected to a positioning rod 154. One end of the positioning rod 154 is fixedly connected to a connecting rod 155. One end of the connecting rod 155 is fixedly connected to a placement cylinder 156. A filter kit 157 is snapped into the inside of the placement cylinder 156. The inner wall of the sealing tube seat 19 is rotatably connected to the outer wall of the connecting rod 155. One end of the positioning groove 152 is provided with an unlocking groove 20.

[0033] Specifically, a sealing ring is provided inside the end cap 18 and at the connection end of the water supply pipe 2 to ensure that cooling water cannot overflow through the end cap 18 after closing. The sealing pipe seat 19 allows the connecting rod 155 to extend through the end cap 18 from its inside side, so that the user can use the connecting rod 155 to drive the cleaning mechanism 15 in the water supply pipe 2 to fix or detach it. When it is necessary to remove the cleaning mechanism 15, the positioning rod 154 is rotated to be perpendicular to the unlocking groove 20, so that the positioning rod 154 loses the limit of the positioning groove 152, and the filter kit 157 can be pulled out directly.

[0034] Refer to the instruction manual appendix Figure 1-5Working principle: After the cold water pump has been used for a period of time, the filter element in the inlet structure of the water supply pipe 2 needs to be replaced to ensure that the cold water entering the cooling pipe 3 remains pure. First, the cooling water in the pump body needs to be drained. Then, rotate the end cap 18 to remove it from the water supply pipe 2. Then, pull and rotate the connecting rod 155 so that the connecting rod 155 drives the positioning rod 154 to rotate in the positioning groove 152 until the other end of the positioning rod 154 rotates to be perpendicular to the unlocking groove 20. The connecting rod 155, together with the spring 153, pops the filter kit 157 out of the unlocking groove 20. Then, take out the filter kit 157 stuck in the placement cylinder 156. The filter kit 157 is generally a PP cotton filter element. After removing it, replace it with a new filter element. Then, insert the positioning rod 154 into the water supply pipe 2 along the unlocking groove 20 and rotate it half a turn. The spring 153 pushes the locking rod with its own elasticity, so that it is limited by the locking groove. Then, install the end cap 18 on the water supply pipe 2 to complete the replacement.

[0035] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A water-cooled water pump comprising a main pump body (1), a water supply pipe (2) and a cooling pipe (3), characterized in that: The upper part of the main pump body (1) is provided with a cavity (4), and the lower part of the cavity (4) is provided with an installation cavity (5). The pump shaft (6) is provided inside the installation cavity (5). An impeller (7), a partition ring (8), a limiting ring (9), a sealing plate (10) and a transmission wheel (11) are fixedly connected to the upper and lower parts of the surface of the pump shaft (6) in sequence. A sealing sleeve (12) is fixedly connected to the inner side of the main pump body (1), and one end of the sealing sleeve (12) is fixedly connected to the inner side of the partition ring (8). An auxiliary cavity (13) is provided on one side of the inner cavity of the main pump body (1). A flow groove (14) is provided between the auxiliary cavity (13) and the installation cavity (5). An end cap (18) is threadedly connected to the outer wall of the water supply pipe (2). A sealing pipe seat (19) is fixedly connected through the side wall of the end cap (18).

2. A water cooled water pump according to claim 1, characterized in that: A water outlet pipe (16) is provided on one side of the cooling pipe (3), and a bearing (17) is fixedly connected to the lower part of the inner cavity of the mounting cavity (5), and the inner wall of the bearing (17) is fixedly connected to the surface of the pump shaft (6).

3. A water cooled water pump according to claim 1, characterized in that: One end of the cooling pipe (3) is bolted to a connecting seat plate (21), and a liquid cooling plate (22) is fixedly connected through the inner side of the connecting seat plate (21). One end of the liquid cooling plate (22) is connected to a motor (23).

4. A water cooled water pump according to claim 1, characterized in that: One end of the outer wall of the water supply pipe (2) is connected to the connecting pump pipe (24), and the other end of the connecting pump pipe (24) is bolted to the top of the main pump body (1). The connecting pump pipe (24) has an inlet chamber (25) inside, and the inlet chamber (25) is connected to the cavity (4).

5. A water cooled water pump according to claim 1, characterized in that: The bottom of the auxiliary cavity (13) is connected to a one-way air valve (26).

6. A water cooled water pump according to claim 1, characterized in that: The main pump body (1) has a limiting ring groove (27) inside, and the outer wall of the limiting ring groove (27) is rotatably sleeved with the surface of the limiting ring (9). Both sides of the limiting ring groove (27) have through holes.

7. A water inlet structure installed in the water-cooled water pump according to any one of claims 1 to 6, characterized by: The water inlet structure is located inside the water supply pipe (2). The water inlet structure includes a cleaning mechanism (15). The cleaning mechanism (15) includes a fixing ring (151) and a positioning groove (152). One end of the fixing ring (151) is fixedly connected to a spring (153). The inner side of the positioning groove (152) is slidably connected to a positioning rod (154). One end of the positioning rod (154) is fixedly connected to a connecting rod (155). One end of the connecting rod (155) is fixedly connected to a placement cylinder (156). The inside of the placement cylinder (156) is fitted with a filter kit (157). The inner wall of the sealing tube seat (19) is rotatably connected to the outer wall of the connecting rod (155). One end of the positioning groove (152) is provided with an unlocking groove (20).

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