A water pump flow channel structure easy to exhaust

Abstract

The application discloses a water pump flow channel structure capable of exhausting easily, and aims at solving the problem of incomplete exhaust in a water pump, which influences the performance of the water pump. The application comprises a water inlet cavity arranged in the water pump and used for water inlet; a impeller cavity arranged in the water pump and used for mounting an impeller, the impeller cavity being communicated with the water inlet cavity; a water inlet port arranged at an upper position of a front part of the water pump, the water inlet port being communicated with the water inlet cavity; a water outlet port arranged at an upper position of a rear part of the water pump, the water outlet port being communicated with the impeller cavity; and the height position of the water outlet port on the water pump is higher than that of the water inlet port. The water pump flow channel structure capable of exhausting easily can exhaust more completely during the working process of the water pump, and guarantees the performance of the water pump.

Description

Technical Field

[0001] This invention relates to a water pump technology, and more specifically, to a water pump flow channel structure that facilitates venting. Background Technology

[0002] During operation, the amount of air inside a water pump affects its performance; therefore, the less air inside the pump, the better. However, many water pumps on the market currently have poor venting performance. When water enters the pump, it first forms high pressure inside, then flows to a lower pressure area. At the point where the pressure changes from low to high, the compressed air at the lower pressure area forms a dead space, causing poor water flow. Furthermore, the air bubbles in municipal water pipes differ significantly between off-peak and peak water usage periods. Especially after water outages, the accumulation of air further impacts pump performance. Summary of the Invention

[0003] To overcome the above shortcomings, the present invention provides a water pump flow channel structure that facilitates venting, which enables more thorough venting during water pump operation, ensuring water pump performance; moreover, it prevents impurities from accumulating inside the water pump.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a water pump flow channel structure for easy air release, comprising:

[0005] The water inlet chamber is located inside the water pump for water intake.

[0006] The impeller chamber is located inside the water pump and is used to install the impeller. The impeller chamber is connected to the inlet chamber.

[0007] The water inlet is located at the upper front of the water pump and is connected to the water inlet chamber.

[0008] The outlet is located at the upper rear of the water pump and is connected to the impeller chamber.

[0009] The water outlet of the water pump is positioned higher than the water inlet.

[0010] When the water pump is working, the impeller rotates, and water enters through the inlet, passes through the inlet chamber and impeller chamber, and is finally discharged through the outlet. If there is air in the water flow, it will be expelled along with the water. The outlet is located at the upper rear of the pump, higher than the inlet. Because air is lighter, it rises, thus allowing it to be completely expelled. Since both the inlet and outlet are positioned high up, some water accumulates inside the pump after shutdown. This water provides lubrication and protection for internal components such as the mechanical seal, and also ensures a sufficient water supply for safe restarting the pump. This easily vented pump flow channel structure allows for more thorough venting during operation, ensuring the pump's performance.

[0011] Preferably, the inlet is located on the front side wall of the water pump, and the outlet is located on the upper rear side of the water pump, with the inlet opening facing forward and the outlet opening facing upward.

[0012] This arrangement of the inlet and outlet helps improve the pump's venting efficiency.

[0013] As a preferred option, an inspection port is provided at the upper end of the water inlet chamber, and a pump cover is installed on the inspection port.

[0014] The inclusion of an inspection port facilitates the inspection and maintenance of the water inlet chamber.

[0015] Preferably, a drainage channel is provided between the impeller cavity and the outlet of the water pump.

[0016] The drainage channel allows water to be smoothly transported from the impeller cavity to the outlet.

[0017] Preferably, the water pump includes a pump body and a motor. The inlet chamber and the impeller chamber are disposed on the pump body. A partition plate is provided between the pump body and the motor. A cooling jacket is provided on the motor. The outlet is disposed on the cooling jacket. An annular drainage channel is formed between the inner wall of the cooling jacket and the outer wall of the motor. The partition plate is provided with slots that connect the impeller chamber and the drainage channel.

[0018] The annular drainage channel not only facilitates water flow but also improves the heat dissipation of the motor.

[0019] As a preferred embodiment, a filter cylinder is installed inside the water inlet chamber, and flow holes are provided on the side wall of the filter cylinder corresponding to the water inlet, and several filter holes are arranged on the filter cylinder.

[0020] A filter cartridge is installed inside the water inlet chamber to filter the water flow, preventing impurities from entering the water pump and making it less prone to impurities, thus avoiding blockages in the water pump.

[0021] Preferably, the outer wall of the filter cartridge is provided with a stepped surface, the inner wall of the water inlet chamber is provided with a supporting surface, the stepped surface is supported on the supporting surface, and a flow passage gap is provided between the outer wall of the filter cartridge below the stepped surface and the inner wall of the water inlet chamber; the inner wall of the water inlet chamber is provided with a flow hole connecting the flow passage gap and the impeller chamber.

[0022] The stepped and supporting surfaces facilitate stable installation of the filter cartridge. The flow gap design allows for smoother water flow.

[0023] Another option involves installing a self-cleaning filter mechanism inside the water inlet chamber. This mechanism includes an installation cylinder and a filter sleeve. Inside the installation cylinder are a rotating shaft, an upper fixed plate, an upper rotating plate, a lower rotating plate, and a lower fixed plate. Water-driven blades are mounted on the rotating shaft. Both the upper and lower rotating plates are securely connected to the shaft. The upper rotating plate rests against the lower surface of the upper fixed plate, and the lower rotating plate rests against the upper surface of the lower fixed plate. The upper fixed plate has several water inlet holes, and several water pipes connect the upper and lower rotating plates, with each end of a water pipe passing through both the upper and lower rotating plates. A filter sleeve is installed inside the water pipe, and a rotatable filter cover is connected to the lower end of the filter sleeve. The lower fixed plate is provided with a material discharge slot and a water outlet slot. The lower end of the mounting cylinder is provided with an impurity collection chamber and a water passage chamber. The material discharge slot is located at the upper end of the impurity collection chamber, and the water passage chamber is connected between the water outlet slot and the impeller chamber. When the two ends of the water pipe are connected to the water inlet and the water outlet slot respectively, the water flows into the water passage chamber after being filtered by the filter sleeve. When the upper end of the water pipe is closed and the lower end of the water pipe is connected to the material discharge slot, the filter cover is opened, and the impurities in the filter sleeve fall into the impurity collection chamber.

[0024] During pump operation, the water flow drives the blades, which in turn rotates the shaft. The upper and lower turntables rotate with the shaft, ensuring that a water pipe is always connected between the inlet and outlet, guaranteeing continuous water flow and preventing interruptions. When the upper end of the water pipe rotates to the position corresponding to the inlet, the lower end connects to the outlet. Water enters the water pipe from the inlet, is filtered by the filter sleeve, and then flows into the water chamber from the outlet, continuing its flow.

[0025] When the lower end of the water pipe is rotated to the position of the discharge slot, the upper end of the water pipe is already sealed by the upper fixed plate, and there is no water flow in the water pipe. When the filter cover is rotated to the position of the discharge slot, the filter cover opens, and the impurities inside the filter sleeve fall into the impurity collection chamber under the action of gravity. When the filter sleeve leaves the discharge slot, the filter cover returns to its original position and closes at the lower end of the filter sleeve.

[0026] When the lower end of the water pipe is rotated to the position of the water outlet hole, the filter sleeve and filter cover edge are supported on the upper surface of the lower fixed plate. At this time, if the upper end of the water pipe is connected to the corresponding water inlet hole, the water flow filtration can be realized.

[0027] During operation, the water pump drives the shaft to rotate continuously, thereby automatically removing and cleaning impurities from inside the filter sleeve. This prevents impurities from accumulating inside the filter sleeve and makes pump maintenance more convenient. Windows are created on the side wall of the impurity collection chamber, allowing impurities to automatically fall outwards.

[0028] Preferably, the filter cover and the filter sleeve are hinged, and a torsion spring is installed between the filter cover and the filter sleeve. The radial width of the filter cover is greater than the radial width of the outlet slot hole, and the radial width of the filter cover is less than the radial width of the discharge slot hole. When the filter cover moves to the position of the discharge slot hole, it is pushed downward and opened under the action of the torsion spring, allowing impurities inside the filter sleeve to fall.

[0029] Preferably, the lower edge of the filter sleeve is provided with two supporting protrusions, and the two upper edges of the feeding slot are recessed downward to form a relief groove. The radial width between the two relief grooves is greater than the radial width between the two supporting protrusions, greater than the radial width of the feeding slot, and greater than the radial width of the lower end of the filter sleeve. The bottom surface of the relief groove includes a horizontal surface and an inclined pushing surface. The pushing surface extends circumferentially from the horizontal surface upward to the upper surface of the lower fixed plate. A shaking spring is installed between the filter sleeve and the water pipe.

[0030] When the lower end of the water pipe rotates to the discharge slot, the upper end of the water pipe is already sealed by the upper fixed plate, and there is no water flow inside the water pipe. When the filter cover is fully positioned in the discharge slot, the filter cover opens first, and impurities inside the filter sleeve fall into the impurity collection chamber under gravity. At this time, the support protrusion rests on the upper surface of the lower fixed plate. As the shaft continues to rotate, when the support protrusion reaches the clearance slot, the filter sleeve moves downward under the action of the vibration spring, and the support protrusion rests on the horizontal surface, causing the filter sleeve to vibrate and facilitating the fall of impurities. The support protrusion moves along the bottom surface of the clearance slot, and the inclined pushing surface causes the support protrusion to move upward, thereby realizing the return of the filter sleeve. When the filter sleeve leaves the discharge slot, the filter cover returns to its original position and closes to the lower end of the filter sleeve, and the lower end of the filter sleeve returns to its original position and adheres to the upper surface of the lower fixed plate.

[0031] Compared with the prior art, the beneficial effects of the present invention are: (1) the easy-venting water pump flow channel structure of this patent application can make the water pump vent more thoroughly during operation, ensuring the performance of the water pump; (2) impurities are not easily deposited in the water pump, avoiding blockage; (3) the impurities generated by the water pump filtration can achieve self-cleaning, which is convenient for maintenance. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0033] Figure 2 This is a partial structural schematic diagram of Embodiment 2 of the present invention;

[0034] Figure 3 This is the invention Figure 2 A magnified view of a portion of position A in the diagram;

[0035] Figure 4 This is a partial exploded view of the self-cleaning filter mechanism of Embodiment 2 of the present invention;

[0036] In the diagram: 1. Inlet chamber, 2. Water pump, 3. Impeller chamber, 4. Impeller, 5. Inlet, 6. Outlet, 7. Dust cover, 8. Inspection port, 9. Pump cover, 10. Drainage channel, 11. Pump body, 12. Motor, 13. Divider plate, 14. Cooling jacket, 15. Extension sleeve, 16. Motor output shaft, 17. Slot, 18. Filter cartridge, 19. Flow passage, 20. Stepped surface, 21. Support surface, 22. Flow gap, 23. Flow hole, 24. Mounting cylinder 25. Filter sleeve, 26. Flow hole, 27. Rotating shaft, 28. Upper fixed plate, 29. Upper turntable, 30. Lower turntable, 31. Lower fixed plate, 32. Blade, 33. Mounting plate, 34. Water inlet, 35. Water pipe, 36. Filter cover, 37. Protruding ring, 38. Material discharge slot, 39. Water outlet slot, 40. Impurity collection chamber, 41. Water passage chamber, 42. Support protrusion, 43. Clearance groove, 44. Horizontal plane, 45. Pushing surface, 46. Vibration spring. Detailed Implementation

[0037] The technical solution of the present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0038] Example 1: A water pump flow channel structure for easy air venting (see attached diagram) Figure 1 ),include:

[0039] Water inlet chamber 1 is located inside water pump 2 for water intake;

[0040] Impeller chamber 3 is located inside the water pump for mounting impeller 4, and the impeller chamber is connected to the inlet chamber;

[0041] Inlet 5 is located at the upper front of the water pump and is connected to the inlet chamber.

[0042] The outlet 6 is located at the upper rear of the water pump and is connected to the impeller chamber.

[0043] The water outlet of the water pump is positioned higher than the water inlet.

[0044] The inlet is located on the front side wall of the water pump, and the outlet is located on the upper rear side of the water pump. The inlet opening faces forward, and the outlet opening faces upward. The axis of the inlet and the axis of the outlet are perpendicular. Dust covers 7 are installed on both the inlet and the outlet. An inspection port 8 is provided at the upper end of the inlet chamber, and a pump cover 9 is installed on the inspection port.

[0045] A drainage channel 10 is provided between the impeller cavity and the outlet of the water pump. The water pump includes a pump body 11 and a motor 12. The inlet cavity and impeller cavity are located on the pump body, and a partition plate 13 separates the pump body and the motor. A cooling jacket 14 is installed over the motor, and the outlet is located on the cooling jacket. An extension sleeve 15 is provided at the outlet position on the cooling jacket, extending upwards, with an opening at the upper end of the extension sleeve forming the outlet. An annular drainage channel is formed between the inner wall of the cooling jacket and the outer wall of the motor. A slot 17 is provided on the partition plate to connect the impeller cavity and the drainage channel. The motor output shaft 16 extends into the impeller cavity, and the impeller is mounted on the motor output shaft.

[0046] A filter cartridge 18 is installed inside the water inlet chamber. The filter cartridge is vertically arranged, and flow passage holes 19 are provided on the side wall of the filter cartridge corresponding to the water inlet. Several filter holes are arranged on the filter cartridge. A stepped surface 20 is provided on the outer wall of the filter cartridge, and a supporting surface 21 is provided on the inner wall of the water inlet chamber. The stepped surface is supported on the supporting surface, and a flow passage gap 22 is provided between the outer wall of the filter cartridge below the stepped surface and the inner wall of the water inlet chamber. A flow passage hole 23 is provided on the inner wall of the water inlet chamber, connecting the flow passage gap and the impeller chamber. The lower end of the filter cartridge is supported at the bottom of the water inlet chamber, and the upper end of the filter cartridge rests on the pump cover.

[0047] When the water pump is working, the impeller rotates, and water enters through the inlet, passes through the inlet chamber and impeller chamber, and finally exits through the outlet. The filter cartridge filters the water flow, preventing impurities from entering the pump and reducing the likelihood of blockages. If air is present in the water flow, it will be expelled along with the water. The outlet is located at the upper rear of the pump, higher than the inlet; since air is lighter, it rises, allowing it to be completely expelled. Because both the inlet and outlet are positioned high, some water accumulates inside the pump after shutdown, providing lubrication and protection for internal components such as the mechanical seals, and ensuring a sufficient water supply for safe restarting.

[0048] Example 2: A water pump flow channel structure for easy air venting (see appendix) Figure 2 Appendix Figure 3 Appendix Figure 4Its structure is similar to that of Embodiment 1, with the main difference being that a self-cleaning filter mechanism is installed in the inlet chamber in this embodiment. The self-cleaning filter mechanism includes an installation cylinder 24 and a filter sleeve 25. The filter sleeve is provided with filter holes, and the side wall of the installation cylinder is provided with flow holes 26 corresponding to the inlet. A rotating shaft 27, an upper fixed plate 28, an upper rotating plate 29, a lower rotating plate 30, and a lower fixed plate 31 are installed inside the installation cylinder. A blade 32 driven by water flow is installed on the rotating shaft. The upper and lower rotating plates are both firmly connected to the rotating shaft. An installation plate 33 is connected to the upper end of the installation cylinder, and the upper end of the rotating shaft is rotatably mounted on the installation plate. The pump cover rests on the installation plate. The upper fixed plate, upper rotating plate, lower rotating plate, and lower fixed plate are arranged sequentially from top to bottom, with the upper fixed plate positioned below the flow holes. The upper turntable is attached to the lower surface of the upper fixed plate, and the lower turntable is attached to the upper surface of the lower fixed plate; the upper fixed plate is provided with several water inlet holes 34, and several water pipes 35 are connected between the upper and lower turntables, with the two ends of the water pipes passing through the upper and lower turntables respectively.

[0049] Three water inlets are spaced circumferentially on the upper fixed plate, two of which are symmetrically arranged, and the third is located between the two. Three water pipes are evenly distributed circumferentially. A filter sleeve is installed inside the water pipe, and a rotatable filter cover 36 is connected to the lower end of the filter sleeve; one end of the filter cover is hinged to the filter sleeve, thus enabling it to flip, and a torsion spring is installed between the filter cover and the filter sleeve. A raised ring 37 is provided on the inner wall of the lower end of the filter cylinder, and the filter cover can be placed between the lower fixed plate and the raised ring. The lower fixed plate is provided with a material discharge slot 38 and a water outlet slot 39. The lower end of the mounting cylinder is provided with an impurity collection chamber 40 and a water passage chamber 41. The material discharge slot is located above the impurity collection chamber, and the water passage chamber connects the water outlet slot and the impeller chamber; both the material discharge slot and the water outlet slot are arc-shaped, and the projections of the three water inlets on the lower fixed plate are all in the water outlet slot. When the two ends of the water pipe are connected to the inlet and outlet holes respectively, the water flows into the water chamber after being filtered by the filter sleeve; when the upper end of the water pipe is closed and the lower end of the water pipe is connected to the discharge trough hole, the filter cover is opened and the impurities in the filter sleeve fall into the impurity collection chamber.

[0050] The radial width of the filter cover is greater than the radial width of the outlet slot, and the radial width of the filter cover is less than the radial width of the feed slot. Two supporting protrusions 42 are provided on the lower edge of the filter sleeve. The two upper edges of the feed slot are recessed downwards to form clearance grooves 43. The radial width between the two clearance grooves is greater than the radial width between the two supporting protrusions, greater than the radial width of the feed slot, and greater than the radial width of the lower end of the filter sleeve. The bottom surface of the clearance groove includes a horizontal surface 44 and an inclined pushing surface 45. The pushing surface extends circumferentially from the horizontal surface upwards to the upper surface of the lower fixed plate. A vibrating spring 46 is installed between the filter sleeve and the water pipe. Other structures are the same as in Embodiment 1.

[0051] During pump operation, the water flow drives the blades, which in turn rotates the shaft. The upper and lower turntables rotate with the shaft, ensuring that a water pipe is always connected between the inlet and outlet, guaranteeing continuous water flow and preventing interruptions. When the upper end of the water pipe rotates to the position corresponding to the inlet, the lower end connects to the outlet. Water enters the water pipe from the inlet, is filtered by the filter sleeve, and then flows into the water chamber from the outlet, continuing its flow.

[0052] When the lower end of the water pipe rotates to the discharge slot, the upper end of the water pipe is already sealed by the upper fixed plate, and there is no water flow inside the water pipe. When the filter cover is fully positioned in the discharge slot, the filter cover opens first, and impurities inside the filter sleeve fall into the impurity collection chamber under gravity. At this time, the support protrusion rests on the upper surface of the lower fixed plate. As the shaft continues to rotate, when the support protrusion reaches the clearance slot, the filter sleeve moves downward under the action of the vibration spring, and the support protrusion rests on the horizontal surface, causing the filter sleeve to vibrate and facilitating the fall of impurities. The support protrusion moves along the bottom surface of the clearance slot, and the inclined pushing surface causes the support protrusion to move upward, thereby realizing the return of the filter sleeve. When the filter sleeve leaves the discharge slot, the filter cover returns to its original position and closes to the lower end of the filter sleeve, and the lower end of the filter sleeve returns to its original position and adheres to the upper surface of the lower fixed plate.

[0053] When the lower end of the water pipe is rotated to the position of the water outlet hole, the filter sleeve and filter cover edge are supported on the upper surface of the lower fixed plate. At this time, if the upper end of the water pipe is connected to the corresponding water inlet hole, the water flow filtration can be realized.

[0054] During operation, the water pump drives the shaft to rotate continuously, thereby automatically removing and cleaning impurities from inside the filter sleeve. This prevents impurities from accumulating inside the filter sleeve and makes pump maintenance more convenient. Windows are created on the side wall of the impurity collection chamber, allowing impurities to automatically fall outwards.

[0055] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Other variations and modifications may be made without departing from the technical solutions described in the claims.

Claims

1. A water pump flow channel structure for easy air venting, characterized in that, include: The water inlet chamber is located inside the water pump for water intake. The impeller chamber is located inside the water pump and is used to install the impeller. The impeller chamber is connected to the inlet chamber. The water inlet is located at the upper front of the water pump and is connected to the water inlet chamber. The outlet is located at the upper rear of the water pump and is connected to the impeller chamber. The water pump's outlet is positioned higher than its inlet. A self-cleaning filter mechanism is installed inside the inlet chamber. This mechanism includes an installation cylinder and a filter sleeve. The installation cylinder houses a rotating shaft, an upper fixed plate, an upper rotating plate, a lower rotating plate, and a lower fixed plate. Water-driven blades are mounted on the rotating shaft, and both the upper and lower rotating plates are securely connected to it. The upper fixed plate has several water inlet holes, and several water pipes connect the upper and lower rotating plates. Each end of one water pipe passes through the upper and lower rotating plates, and a filter sleeve is installed inside. A rotatable filter cover is connected to the lower end of the filter sleeve. The lower fixed plate has a material discharge slot and a water outlet slot. The lower end of the installation cylinder has an impurity collection chamber and a water passage chamber. When the two ends of the water pipe are connected to the water inlet and outlet slots respectively, water flows through the filter sleeve and into the water passage chamber. When the upper end of the water pipe is closed and the lower end is connected to the material discharge slot, the filter cover opens, and impurities inside the filter sleeve fall into the impurity collection chamber.

2. The easily vented water pump flow channel structure according to claim 1, characterized in that, The inlet is located on the front side wall of the water pump, and the outlet is located on the upper rear side of the water pump. The inlet opening faces forward, and the outlet opening faces upward.

3. The easily vented water pump flow channel structure according to claim 1, characterized in that, An inspection port is provided at the upper end of the water inlet chamber, and a pump cover is installed on the inspection port.

4. The easily vented water pump flow channel structure according to claim 1, characterized in that, A drainage channel is provided between the impeller chamber and the outlet of the water pump.

5. The easily vented water pump flow channel structure according to claim 4, characterized in that, The water pump includes a pump body and a motor. The inlet chamber and impeller chamber are located on the pump body. A partition plate separates the pump body and the motor. A cooling jacket is installed on the motor. The outlet is located on the cooling jacket. An annular drainage channel is formed between the inner wall of the cooling jacket and the outer wall of the motor. The partition plate is provided with slots that connect the impeller chamber and the drainage channel.

6. A water pump flow channel structure for easy air venting according to any one of claims 1 to 5, characterized in that, The upper turntable is attached to the lower surface of the upper fixed plate, and the lower turntable is attached to the upper surface of the lower fixed plate; the material discharge slot is located at the upper end of the impurity collection chamber, and the water passage chamber is connected between the water outlet slot and the impeller chamber.

7. The easily vented water pump flow channel structure according to claim 6, characterized in that, The filter cover and filter sleeve are hinged together, and a torsion spring is installed between the filter cover and the filter sleeve. The radial width of the filter cover is greater than the radial width of the outlet slot hole, and the radial width of the filter cover is less than the radial width of the feed slot hole.

8. The easily vented water pump flow channel structure according to claim 6, characterized in that, The filter sleeve has two supporting protrusions on its lower edge, and the two upper edges of the feeding slot are recessed downward to form clearance grooves. The radial width between the two clearance grooves is greater than the radial width between the two supporting protrusions, which is greater than the radial width of the feeding slot, which is greater than the radial width of the lower end of the filter sleeve. The bottom surface of the clearance groove includes a horizontal surface and an inclined pushing surface. The pushing surface extends circumferentially from the horizontal surface upward to the upper surface of the lower fixed plate. A shaking spring is installed between the filter sleeve and the water pipe.

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