Non-blocking vane adjustable pressurized water pump

Abstract

This invention discloses a non-obstructive, adjustable-blade booster pump, comprising a pump casing, a booster impeller rotatably mounted inside the pump casing, and an impeller base. An energy storage tank is located at the center of the impeller base. Multiple elongated slots are radially arranged at equal intervals around the energy storage tank, facing the edge of the impeller base. The openings of the energy storage tank and the elongated slots are located on the end face of the impeller base facing the front pump cover. A telescopic spring is installed inside the energy storage tank. Multiple traction ropes are fixed to the end of the telescopic spring facing the front pump cover, corresponding to the position and number of elongated slots. Each traction rope is connected to a centrifugal slider, which is located within a sliding groove. The sliding groove is located in the middle of the corresponding elongated slot. A telescopic plate is installed within the elongated slot. The end of the telescopic plate near the energy storage tank has a long slot for engaging with the sliding groove. Blades are hinged to the side of the telescopic plate facing the front pump cover. This design allows the blades to be vertical or flattened, thus eliminating the need for a separate parallel circuit and allowing direct installation in the main water pipe.

Description

Technical Field

[0001] This invention relates to the field of pump manufacturing technology, specifically to a non-obstruction adjustable blade pressurized water pump. Background Technology

[0002] A pump is a device that is controlled by a prime mover to drive the movement of a medium. It is an energy conversion device that converts the energy output by the prime mover into the pressure energy of the medium. It is a machine that draws in and discharges fluids and can lift, transport, or compress fluids. Pumps are mainly used to transport liquids including water, oil, acid and alkali solutions, emulsions, suspensions, and liquid metals.

[0003] Water pumps are the most widely used type of water pump, especially in domestic water systems where they are an essential component. The water pressure needs to be increased step by step from the water source to the user to ensure that the water pressure meets the usage requirements. For users with unreasonable pipeline design or those who are far from the water source, unstable water pressure is very likely to occur during peak water usage periods, which greatly affects the user experience. Therefore, many users will add a backup booster pump to turn on when the water pressure is insufficient and turn off when the water pressure is normal. However, traditional booster pumps need to be connected in parallel with the main water pipe during installation, adding an independent circuit. Otherwise, when the booster pump is not working, the resistance generated by the blades will seriously affect the normal water pressure. Moreover, the installation cost is high and the disassembly is complicated. In addition, the additional parallel circuit will aggravate the water hammer effect of the water pipes and reduce the service life of the water pipes.

[0004] In view of this, we propose a low-cost, unobstructed, adjustable-blade booster pump that does not require the design of a separate parallel circuit. Summary of the Invention

[0005] The purpose of this invention is to provide a non-obstruction adjustable impeller booster pump to solve the problems mentioned in the background art. To achieve the above objective, this invention provides the following technical solution: A non-obstruction adjustable impeller booster pump includes a pump casing, with a front pump cover and a rear pump cover installed at the front and rear ends of the pump casing, respectively. An outlet is provided on one side of the pump casing, and an inlet is provided in the middle of the front pump cover. A booster impeller is rotatably mounted inside the pump casing. The booster impeller includes an impeller base, with an energy storage tank at the center of the impeller base. Multiple elongated slots are radially arranged at equal intervals around the energy storage tank, facing the edge of the impeller base. The openings of the energy storage tank and the elongated slots are located on the end face of the impeller base facing the front pump cover. A limiting edge is provided inside the opening of the elongated slot. A telescopic spring is installed inside the energy storage tank, with the telescopic spring facing forward... One end of the pump cover is fixed with multiple traction ropes corresponding to the position and number of long slots. Each traction rope is connected to a centrifugal slider, which is set in a trough. The trough is opened in the middle of the long slot at the corresponding position and runs through both ends of the long slot. A telescopic plate is set in the long slot, which can accommodate the telescopic plate to move up and down. The end of the telescopic plate near the energy storage tank has a long strip slot that connects with the trough. The long strip slot can accommodate the centrifugal slider. A blade is hinged to the side of the telescopic plate facing the front pump cover, and a limiting strip that cooperates with the limiting edge is set on this side. The blade can freely pass through the opening of the long slot. The long strip slot is inclined towards the blade in the radially inward to radially outward direction.

[0006] Preferably: a stop bar is provided on the side edge opposite to the rotation direction of the pressurizing impeller at the opening of the long groove. A notch is provided on the stop bar, and a rotating shaft is mounted in the notch. The rotating shaft passes through the middle of the locking post, and the locking post is located in the notch. A groove is provided at the opening of the long groove corresponding to the notch to allow the locking post to rotate. A stop block is provided at the upper end of the locking post to abut against the blade. A second traction rope is fixed to the bottom end of the locking post. The second traction rope passes through the corresponding L-shaped channel and connects to the edge of the pressure plate in the energy storage tank. A pressure plate is provided on the telescopic spring. Both the first and second traction ropes are fixed to the edge of the pressure plate. The L-shaped channel is located between the groove and the energy storage tank.

[0007] Preferably, a protective cap is provided above the energy storage tank via bolts.

[0008] Preferably, an oil seal bushing is provided inside the rear pump cover, and multiple heat dissipation fins are provided on the outside of the oil seal bushing. A pump shaft is provided inside the oil seal bushing, with one end of the pump shaft connected to a pressure impeller and the other end connected to a bearing housing.

[0009] Preferably, the front pump cover and the rear pump cover are detachably installed at the front and rear ends of the pump casing.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0011] This invention achieves the pump impeller's blades opening under centrifugal force when the pump impeller rotates, enabling the pump to pressurize the water. When the pump impeller stops rotating, the telescopic plate loses centrifugal force, allowing the blades to fold and enabling water to flow freely through the pump, effectively reducing the resistance of the blades to the water flow.

[0012] This invention, through the cooperation of a stop bar, a telescopic spring, and a magnetic block, enables the blades to actively adhere to the bottom surface of the impeller base when the water pump stops rotating, reducing the possibility of the blades obstructing the water flow and further improving the smoothness of the water flow through the water pump. Attached Figure Description

[0013] Figure 1 This is a schematic cross-sectional view of the present invention;

[0014] Figure 2 This is a three-dimensional schematic diagram of the overall pressure impeller and some of its components assembled according to the present invention;

[0015] Figure 3 This is a three-dimensional cross-sectional view of the impeller base of the present invention;

[0016] Figure 4 This is a schematic diagram showing the relationship between the telescopic plate, blades, and telescopic springs of the present invention.

[0017] Figure 5 This is a top perspective view of the pressurized impeller of the present invention;

[0018] Figure 6 This is an enlarged schematic diagram of point A in the present invention;

[0019] Figure 7 This is a three-dimensional schematic diagram of the locking pin of the present invention.

[0020] In the diagram, 1. Pump casing, 2. Front pump cover, 3. Rear pump cover, 4. Bearing housing, 5. Inlet, 6. Outlet, 7. Pressure plate, 8. Impeller base, 9. Blade, 10. Energy storage tank, 11. Long groove, 12. Telescopic spring, 13. Centrifugal slider, 14. Slide groove, 15. Telescopic plate, 17. Limiting edge, 18. Stop bar, 20. Locking post, 21. Abutment block, 22. L-shaped channel, 24. Protective cap, 25. Oil seal bushing, 26. Heat sink, 29. Groove, 30. Long strip bayonet, 32. Hinge, 33. Limiting bar. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figure 1-7 This invention provides a technical solution: a non-obstruction adjustable blade booster pump, comprising a pump casing 1, with a front pump cover 2 and a rear pump cover 3 installed at the front and rear ends of the pump casing 1, respectively. An outlet 6 is provided on one side of the pump casing 1, and an inlet 5 is provided in the middle of the front pump cover 2. The water entering the pump through the inlet 5 in the middle of the front pump cover 2 carries a certain water pressure. Therefore, when the pump is not working, the water can actively enter the pump from the inlet 5 and actively flow out from the outlet 6. The pump casing 1 rotates... A pressurizing impeller is provided, comprising an impeller base 8. An energy storage tank 10 is located at the center of the impeller base 8. Multiple elongated slots 11 are radially arranged at equal intervals around the energy storage tank 10, facing the edge of the impeller base 8. The openings of the energy storage tank 10 and the elongated slots 11 are located on the end face of the impeller base 8 facing the front pump cover 2. A limiting edge 17 is provided inside the opening of each elongated slot 11. A telescopic spring 12 is installed inside the energy storage tank 10, with the end of the telescopic spring 12 facing the front pump cover 2... Multiple traction ropes are fixed to the long trough 11 at its position and in its quantity. Each traction rope is connected to a centrifugal slider 13, which is located within a slide 14. The slide 14 is located in the middle of the long trough 11 at the corresponding position and extends through both ends of the long trough 11. A telescopic plate 15 is installed inside the long trough 11, allowing the telescopic plate 15 to move up and down. The end of the telescopic plate 15 near the energy storage tank 10 has a long slot 30 that mates with the slide trough, allowing the centrifugal slider to be accommodated. 13. The telescopic plate 15 is hinged to the side facing the front pump cover 2 with blades 9, and a limiting strip 33 that cooperates with the limiting edge is provided on the side edge. The cooperation between the limiting strip 33 and the limiting edge 17 prevents the telescopic plate 15 from disengaging from the opening of the long groove 11. The blades 9 can freely pass through the opening of the long groove 11. The limiting edge 17 at the opening of the long groove 11 will not affect the passage of the blades 9. The long strip latch 30 is inclined toward the blades 9 in the direction from the radial inner side to the radial outer side.

[0023] In this embodiment: A stop bar 18 is provided on the edge of the opening of the long groove 11 opposite to the rotation direction of the pressurizing impeller. A notch is provided on the stop bar 18, and a rotating shaft is mounted in the notch. The rotating shaft passes through the middle of the locking post 20, which is located in the notch. A groove 29 is provided at the opening of the long groove 11 corresponding to the notch to allow the locking post 20 to rotate. A stop block that abuts against the blade 9 is provided at the upper end of the locking post 20. A traction rope 2 is fixed to the bottom end of the locking post 20. The traction rope 2 passes through the corresponding L-shaped channel 22 and connects to the edge of the pressure plate 7 in the energy storage tank 10. The L-shaped channel 22 is located between the groove 29 and the energy storage tank 10. When the locking post 20 is not provided, the blade 9 is in a free state when the pressurizing water pump is not started, and moves in the direction of the water flow. The rotating blades 9, not obstructed by the stop bar 18, will adhere to the impeller base 8. However, the blades 9 moving in the opposite direction of the water flow will not rotate in the opposite direction and adhere to the impeller base 8 because they are obstructed by the stop bar 18. Therefore, they can generate resistance to the water flow. Thus, without the locking column 20, the water flow in the main pipe can still pass through the pump more smoothly than a traditional water pump. Adding the locking column 20 is a better technical solution. The function of the locking column 20 is to ensure that each blade 9 can adhere to the impeller base 8, minimizing the resistance of the water flow through the pressurized water pump. The function of the L-shaped channel 22 is to change the traction direction of the traction rope 2 on the locking column 20, so that the locking column 20 can do work correctly. A protective cap 24 is provided on the top of the energy storage tank 10 by bolts.

[0024] In this embodiment: a pressure plate 7 is provided on the telescopic spring 12. The pressure plate 7 enables the telescopic spring 12 to store and release energy more evenly, improve the spring life, and reduce the error rate. Both the first traction rope and the second traction rope are fixed to the edge of the pressure plate 7.

[0025] In this embodiment: an oil seal bushing 25 is provided inside the rear pump cover 3, and multiple heat dissipation fins 26 are sleeved on the outside of the oil seal bushing 25. A pump shaft is sleeved inside the oil seal bushing 25. One end of the pump shaft is connected to a pressure impeller, and the other end is connected to a bearing housing 4. The function of the oil seal bushing 25 is to prevent water in the pump casing 1 from entering the bearing housing 4 along the pump shaft and damaging the various parts inside the bearing housing 4.

[0026] In this embodiment, the front pump cover 2 and the rear pump cover 3 are detachably installed at the front and rear ends of the pump casing 1. The detachable installation facilitates the maintenance of the water pump, and all internal components of the pump are made of corrosion-resistant materials.

[0027] In this embodiment: Appendix Figure 2 and 4The image only shows four elongated slots 11 on the impeller base 8, but this application claims protection for, but not limited to, the presence of four elongated slots 11 on the impeller base 8. This means that during use, more or fewer elongated slots 11 and related components or structures can be optimally selected based on actual needs. Figure 2 In order to clearly show the position and structure of components such as the long slot 11, only one of the four long slots 11 is shown as an example. The long slot 11 is equipped with structures and components such as blades 9. This does not mean that the other long slots 11 do not have structures and components such as blades 9 or are not equipped.

[0028] The working principle of this invention is as follows:

[0029] When the water pump is working, the centrifugal force generated by the rotation of the pressurizing impeller causes the centrifugal slider 13 to move away from the energy storage tank 10 along the slide groove and enter the long slot 30 of the telescopic plate 15. Since the long slot 30 is tilted upward (towards the blade 9) and the slide groove 14 restricts the upward movement of the centrifugal slider 13, the centrifugal slider 13 will force the telescopic plate 15 to retract into the long groove 11 when it comes into contact with the slope of the long slot 30. This causes the blade 9 to retract into the long slot 11. Since the telescopic plate 15 is connected to the blade 9 by the hinge 32, it can rotate relative to the telescopic plate 15. Therefore, when the bottom part of the blade 9, which was originally attached to the impeller base 8, is pulled into the long slot 11, it is gradually erected by the resistance of the edge of the opening of the long slot 11 during the process of being pulled into the long slot 11. Then, it is completely erected by the impact of the water flow. The stop bar 18 restricts the rotation of the blade 9 and bears the impact force of the water flow on the blade 9, preventing damage to the hinge 32 or deformation of the blade 9. This allows the blade 9 to effectively do work, further pressurizing the water flow pressed into the inlet 5 and sending it out from the outlet 6, thus achieving pressurization. At this time, since the centrifugal slider 13 drives the pressure plate 7 to compress the spring in the energy storage tank 10, the locking column 20 is not subjected to the traction force provided by the extension of the telescopic spring 12, and therefore will not affect the work done by the blade 9. When the water pump stops working, the pressurizing impeller gradually stops rotating. As the centrifugal slider 13 gradually loses centrifugal force, it gradually moves away from the strip-shaped slot under the action of the telescopic spring 12. At this time, the telescopic spring 12 gradually extends, and the bottom end of the locking post 20 is pulled by the telescopic spring 12, causing the abutment block 21 at the upper end of the locking post 20 to press against the blade 9, causing the blade 9 to rotate towards the end face of the impeller base 8. Since the locking post 20 is set in the notch of the abutment strip 18, and the abutment strip 18 is set on the edge of the opening of the long groove 11, the abutment block 21 of the locking post 20 is higher than the horizontal plane when the blade 9 is attached to the impeller base 8. Therefore, the locking post 20 can completely press the blade 9 onto the end face of the impeller base 8. There is a hinge 32 at the connection between the blade 9 and the telescopic plate 15. The width of the hinge 32 causes the hinge point (i.e., the rotation point) of the blade 9 to be slightly higher than the end face of the impeller base 8. Therefore, the blade 9 will not be blocked by the edge of the opening of the long groove 11 during the process of attaching to the end face of the impeller base 8. At this time, the water flow will not be resisted by the blade 9 when passing through the water pump. Therefore, the water pump can be directly connected in series in the main water pipe and will not affect the original water pressure in the water pipe when it is not started.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A non-obstructive, adjustable-blade booster pump, comprising a pump casing, a front pump cover and a rear pump cover respectively installed at the front and rear ends of the pump casing, an outlet on one side of the pump casing, and an inlet in the middle of the front pump cover, characterized in that: A pressure impeller is rotatably mounted inside the pump casing. The pressure impeller includes an impeller base, with an energy storage tank at its center. Multiple elongated slots are radially arranged at equal intervals around the energy storage tank, facing the edge of the impeller base. The openings of the energy storage tank and the elongated slots are located on the end face of the impeller base facing the front pump cover. A limiting edge is provided inside the opening of each elongated slot. A telescopic spring is installed inside the energy storage tank. Multiple traction ropes are fixed to the end of the telescopic spring facing the front pump cover, corresponding to the position and number of elongated slots. Each traction rope is connected to a centrifugal slider. All are installed in the slide groove, which is opened in the middle of the long groove at the corresponding position and runs through both ends of the long groove. A telescopic plate is installed in the long groove, which can accommodate the telescopic plate to move up and down. The end of the telescopic plate near the energy storage tank has a long strip slot that connects with the slide groove. The long strip slot can accommodate the centrifugal slider. A blade is hinged to the side of the telescopic plate facing the front pump cover, and a limiting strip that cooperates with the limiting edge is provided on this side. The blade can freely pass through the opening of the long groove. The long strip slot is inclined towards the blade in the direction from the radial inside to the radial outside.

2. A non-obstruction adjustable blade booster pump according to claim 1, characterized in that: A stop bar is provided on the side edge opposite to the rotation direction of the pressurizing impeller at the opening of the long slot. A notch is provided on the stop bar, and a rotating shaft is mounted in the notch. The rotating shaft passes through the middle of the locking post, and the locking post is located in the notch. A groove is provided at the opening of the long slot corresponding to the notch to allow the locking post to rotate. A stop block is provided at the upper end of the locking post to abut against the blade. A second traction rope is fixed to the bottom end of the locking post. The second traction rope passes through the corresponding L-shaped channel and connects to the edge of the pressure plate in the energy storage tank. A pressure plate is provided on the telescopic spring. Both the first and second traction ropes are fixed to the edge of the pressure plate. The L-shaped channel is located between the groove and the energy storage tank.

3. A non-obstruction adjustable blade booster pump according to claim 2, characterized in that: A protective cap is bolted to the top of the energy storage tank.

4. A non-obstruction adjustable blade booster pump according to claim 1, characterized in that: An oil seal bushing is installed inside the rear pump cover, and multiple heat dissipation fins are fitted on the outside of the oil seal bushing. The pump shaft is fitted inside the oil seal bushing, with one end of the pump shaft connected to a pressure impeller and the other end connected to a bearing housing.

5. A non-obstruction adjustable blade booster pump according to claim 1, characterized in that: The front pump cover and the rear pump cover are detachable and installed at the front and rear ends of the pump casing.

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