Water pump for oral irrigator and oral irrigator with water pump

Abstract

The utility model discloses a water pump of an oral irrigator and the oral irrigator. The water pump of the oral irrigator comprises a water pump shell, the water outlet mechanism comprises a pump body and a water inlet connector, the water inlet connector is installed on the pump body, the pump body and the water inlet connector are both arranged in the water pump shell, the pump body is provided with a water outlet, the water inlet connector is provided with a water inlet, and the water inlet connector and the pump body jointly form a pump body water path communicating with the water inlet and the water outlet; the driving mechanism is mounted in the water pump shell, and the driving mechanism extends into the water path of the pump body and drives the water outlet mechanism to pump water to the water outlet; the water pump shell is provided with a via hole, the direction of the via hole is opposite to that of the water outlet, the water inlet connector is provided with a water inlet nozzle, and the water inlet nozzle extends out of the shell from the via hole. The water pump of the oral irrigator has the advantages of being good in sealing performance, high in reliability and the like.

Description

Technical Field

[0001] This utility model relates to the field of dental floss equipment technology, and in particular to a dental floss pump and a dental floss device having the same. Background Technology

[0002] In related technologies, water pumps for oral irrigators typically involve installing the pump body and the pump housing, and then installing the inlet connector and the pump housing, thus forming a water inlet path that passes sequentially through the inlet connector, the pump housing, and the pump body. However, when the inlet connector is installed outside the pump housing, it is exposed to the external environment. When the water pump is working, the inlet connector may be affected by the external environment. At the same time, both the pump body and the inlet connector need to be installed with the pump housing, and poor sealing can easily occur between the pump body and the pump housing, as well as between the inlet connector and the pump housing, leading to liquid leakage. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide a water pump for a dental irrigator that has advantages such as good sealing performance and high reliability.

[0004] Another objective of this invention is to provide a dental flosser having the aforementioned dental flosser pump.

[0005] According to a first aspect of the present invention, a water pump for a dental flosser includes: a pump housing; a water outlet mechanism, the water outlet mechanism including a pump body and a water inlet connector, the water inlet connector being installed in the pump body, both the pump body and the water inlet connector being disposed within the pump housing, the pump body having a water outlet, the water inlet connector having a water inlet, the water inlet connector and the pump body together forming a pump body water passage connecting the water inlet and the water outlet; a drive mechanism, the drive mechanism being installed within the pump housing, the drive mechanism extending into the pump body water passage and driving the water outlet mechanism to pump water to the water outlet; wherein, the pump housing has a through hole, the orientation of the through hole being opposite to the orientation of the water outlet, the water inlet connector having a water inlet nozzle, the water inlet nozzle extending out of the housing from the through hole.

[0006] According to some embodiments of the present invention, the water pump housing includes: a first half-shell and a second half-shell. The first half-shell is configured with a receiving groove. The water outlet mechanism and the drive mechanism are installed in the receiving groove. The second half-shell and the first half-shell are fastened together to close the receiving groove.

[0007] According to some embodiments of the present invention, a notch is formed on the side of the first half-shell facing the second half-shell, and the second half-shell closes the opening side of the notch to form the through hole.

[0008] According to some embodiments of the present invention, one of the first half-shell and the second half-shell has a snap fastener and the other has a snap hole. The snap fastener and the snap hole are located on the side of the press pump away from the water outlet mechanism. The first half-shell and the second half-shell are engaged by the snap fastener and the snap hole and fastened by fasteners.

[0009] According to some embodiments of the present invention, one of the first half-shell and the second half-shell has a first retaining edge on the side facing away from the other, the first retaining edge being adapted to engage and fix the circuit board.

[0010] According to some embodiments of the present invention, one of the first half-shell and the second half-shell has a second retaining edge on the side facing away from the other, the second retaining edge being adapted to engage and fix the battery.

[0011] According to some embodiments of the present invention, the driving mechanism includes: a drive motor installed inside the water pump housing; and a transmission mechanism connected to the drive motor. The receiving slot includes: a pump slot, a transmission slot, and a motor slot, arranged sequentially along the length of the water pump housing. The pump body and the inlet connector are adapted to be received together in the pump slot, the motor is adapted to be received in the motor slot, and the transmission mechanism is adapted to be received in the transmission slot.

[0012] According to some embodiments of the present invention, the transmission mechanism includes: a gear transmission mechanism located in the transmission groove and connected to the drive motor, wherein a cam is formed on one side of the gear transmission mechanism in the thickness direction; a transmission cover cooperating with the cam, wherein the cam drives the transmission cover to move axially along the piston rod; and a piston rod connected to one end of the transmission cover to pump water to the outlet; wherein the transmission groove is constructed with a slide rail extending in a straight line, and the transmission cover cooperates with the slide rail to move in a straight line.

[0013] According to some embodiments of the present invention, it further includes: a water inlet pipe, one end of which is connected to the water inlet nozzle, and the other end of which extends to the end of the housing away from the water outlet; wherein the housing is configured with a connector for fixing the water inlet pipe, and the other end of the water inlet pipe is inserted into the connector.

[0014] The oral irrigator according to a second aspect of the present invention includes the oral irrigator water pump according to the first aspect of the present invention described above.

[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a structural schematic diagram of the water pump for a dental flosser according to an embodiment of the present invention;

[0018] Figure 2 This is another structural schematic diagram of the water pump for the oral irrigator according to an embodiment of the present utility model;

[0019] Figure 3 This is an exploded view of the water pump of the oral irrigator according to an embodiment of the present utility model;

[0020] Figure 4 This is a cross-sectional view of the water pump for a dental flosser according to an embodiment of the present invention.

[0021] Figure label:

[0022] Dental irrigator water pump 1, water pump housing 100, water outlet mechanism 200, drive mechanism 300, water inlet pipe 400.

[0023] Through hole 101, water inlet nozzle 102, connector 103, first half-shell 110, second half-shell 120, receiving groove 130.

[0024] Buckle 113, first retaining edge 114, retaining hole 121, second retaining edge 122, pump groove 131, transmission groove 132

[0025] Motor slot 133, pump body 210, water inlet connector 220, drive motor 310, transmission mechanism 320.

[0026] Gear transmission mechanism 321, transmission cover 322, piston rod 323, cam 301, circuit board 10, battery 20. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0028] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.

[0030] In the description of this utility model, "multiple" means two or more, and "several" means one or more.

[0031] The following description, with reference to the accompanying drawings, describes a water pump 1 for a dental flosser according to an embodiment of the present invention.

[0032] like Figures 1-4 As shown, the dental pump 1 of the oral irrigator according to the first aspect of the present invention includes a pump housing 100, a water outlet mechanism 200 and a drive mechanism 300.

[0033] The water outlet mechanism 200 includes a pump body 210 and an inlet connector 220. The inlet connector 220 is installed in the pump body 210. Both the pump body 210 and the inlet connector 220 are located inside the pump housing 100. The pump body 210 has an outlet, and the inlet connector 220 has an inlet. The inlet connector 220 and the pump body 210 together form a water passage connecting the inlet 221 and the outlet. The drive mechanism 300 is installed inside the pump housing 100. The drive mechanism 300 extends into the water passage and drives the water outlet mechanism 200 to pump water to the outlet. The pump housing 100 has a through hole 101, the orientation of which is opposite to the outlet orientation. The inlet connector 220 has an inlet nozzle 102, which extends out of the pump housing 100 from the through hole 101.

[0034] For example, such as Figure 2 As shown, Figure 2 The direction of the arrow indicates the water flow direction. The water inlet nozzle 102 of the water pump 1 extends out of the pump housing 100 through the through hole 101, allowing an external water source to connect to the water inlet connector 220. At this time, the water inlet nozzle 102 is connected to the water inlet, and water enters the water inlet connector 220 through the water inlet nozzle 102 and enters the pump body 210. The water inlet connector 220 and the pump body 210 together form the pump body water passage, ensuring that water can flow smoothly from the water inlet to the water outlet. The drive mechanism 300 is installed inside the pump housing 100 to drive the pump body 210 to work. As the drive mechanism 300 works, the water in the pump body 210 is driven and transported along the pump body water passage to the water outlet. At this time, the water outlet of the water outlet mechanism 200 can spray water out.

[0035] According to the embodiment of the present invention, the water pump 1 for a dental irrigator eliminates the need for assembly between the pump body 210 and the inlet connector 220, both of which are located within the pump housing 100. This eliminates the gap between the inlet connector 220 and the pump housing 100, as well as the gap between the pump body 210 and the pump housing 100, reducing the risk of leakage due to connection gaps and improving the overall sealing performance. Furthermore, the inlet connector 220 and the pump body 210 form an integral water outlet mechanism 200 structure. The direct connection between them simplifies the entire water circuit structure, thereby reducing potential leakage points and significantly improving the sealing performance of the water pump 1 for the dental irrigator.

[0036] Furthermore, the inlet of the water inlet 102 faces rearward, while the outlet of the water outlet mechanism faces forward. This ensures that when the water flosser pump 1 is pumping water, the drive mechanism 300 provides pressure towards the outlet during the pumping process, preventing the pressure in the pump body's water circuit from being transmitted towards the inlet. This effectively avoids the pressure generated during the operation of the water flosser pump 1 being transmitted towards the inlet connector, further reducing the pressure on the inlet and the risk of potential leakage, and improving the sealing performance and reliability of the water flosser pump 1.

[0037] Therefore, the water pump 1 for the oral irrigator according to the present invention has the advantages of good sealing performance and high reliability.

[0038] In some optional embodiments of this utility model, reference is made to Figure 2 The water pump housing 100 includes a first half-shell 110 and a second half-shell 120. The first half-shell 110 is configured with a receiving groove 130, and the water outlet mechanism 200 and the drive mechanism 300 are installed in the receiving groove 130. The second half-shell 120 is fastened to the first half-shell 110 to close the receiving groove 130.

[0039] The receiving groove 130 allows the water outlet mechanism 200 and the drive mechanism 300 to be safely enclosed inside the water pump housing 100, preventing external impurities such as dust from entering and thus extending the service life of the water pump 1. At the same time, the interlocking structure of the first half-shell 110 and the second half-shell 120 simplifies the assembly process. By interlocking with each other, the internal components can be quickly and effectively fixed together, reducing the complexity of assembly.

[0040] Furthermore, the second half-shell 120 and the first half-shell 110 are interlocked to close the receiving groove 130, which helps to keep the overall design of the water pump 1 within a compact range, saving space and improving the aesthetics of the product, while also making it easy for users to carry and use.

[0041] In some optional embodiments of this utility model, such as Figure 2 and Figure 3 As shown, the first half-shell 110 has a notch on the side facing the second half-shell 120, and the second half-shell 120 closes the opening side of the notch to form a through hole 101. The through hole 101 is formed by the first half-shell 110 and the second half-shell 120, which reduces the processing difficulty and facilitates the assembly of the water inlet nozzle 102 with the through hole 101, as well as the disassembly and assembly of the water pump housing 100.

[0042] In some optional embodiments of this utility model, such as Figure 2 As shown, one of the first half-shell 110 and the second half-shell 120 has a snap-fit ​​113 and the other has a locking hole 121. The snap-fit ​​113 and the locking hole 121 are located on the side of the water pump 1 away from the water outlet mechanism 200. The first half-shell 110 and the second half-shell 120 are engaged by the snap-fit ​​113 and the locking hole 121 and secured by fasteners. There may also be multiple snap-fit ​​113 and locking holes 121, arranged at intervals on the side of the first half-shell 110 and the second half-shell 120 away from the water outlet mechanism 200.

[0043] The structure of the clip 113 and the locking hole 121 effectively and accurately positions the first half-shell 110 and the second half-shell 120, and securely fixes them together with other fasteners. This ensures that the first half-shell 110 and the second half-shell 120 can be tightly aligned during assembly, preventing displacement caused by vibration or mechanical impact, thereby improving the overall stability of the water pump 1. Simultaneously, during assembly, the operator only needs to insert the clip 113 into the locking hole 121 to quickly complete the initial fixing of the first half-shell 110 and the second half-shell 120, reducing the need for precise alignment and making the assembly of the internal components of the water pump 1 more convenient and efficient.

[0044] In some optional embodiments of this utility model, such as Figure 1 and Figure 2 As shown, one of the first half-shell 110 and the second half-shell 120 has a first retaining edge 114 on its opposite side, which is adapted to engage and fix the circuit board 10. The circuit board 10 has a mounting notch corresponding to the position of the first retaining edge 114, the shape of which is adapted to the shape of the first retaining edge 114. During assembly, the first retaining edge 114 is assembled with the mounting notch, and the circuit board 10 can be securely fixed to the first half-shell 110 or the second half-shell 120.

[0045] By aligning the first clip 114 with the mounting notch, the circuit board 10 is securely fixed within the half-shell during assembly. This precise fit effectively prevents the circuit board 10 from loosening due to vibration or impact during use, improving the overall stability of the water pump 1 of the oral irrigator.

[0046] In some optional embodiments of this utility model, reference is made to Figure 1 One of the first half-shell 110 and the second half-shell 120 has a second retaining edge 122 on its opposite side, which is adapted to engage and secure the battery 20. The second retaining edges 122 can be distributed on both sides of one of the first half-shell 110 and the second half-shell 120, and the second retaining edges 122 on both sides are respectively fixed to both sides of the battery 20. The bottom of the battery 20 is also fixed with a retaining edge to ensure that the battery 20 is fixed in the designated position.

[0047] The second retaining edge 122 effectively secures the battery 20 in the designated position, preventing it from shifting due to vibration or movement during use. This stable fixation helps ensure the normal operation of the water pump 1 of the oral irrigator and avoids malfunctions caused by poor contact of the battery 20. Simultaneously, by providing the second retaining edge 122 on both sides of the first half-shell 110 and the second half-shell 120, the user can easily place and secure the battery 20 in the designated position, making battery installation and removal simpler and allowing for easy battery replacement without complicated procedures.

[0048] In some optional embodiments of this utility model, such as Figure 3 As shown, the drive mechanism 300 includes a drive motor 310 and a transmission mechanism 320. The drive motor 310 is installed inside the water pump housing 100. The transmission mechanism 320 is connected to the drive motor 310. The receiving slot 130 includes a pump slot 131, a transmission slot 132, and a motor slot 133. The pump slot 131, transmission slot 132, and motor slot 133 are arranged sequentially along the length of the water pump housing 100. The pump body 210 and the inlet connector are adapted to be housed together in the pump slot 131, the drive motor 310 is adapted to be housed in the motor slot 133, and the transmission mechanism 320 is adapted to be housed in the transmission slot 132.

[0049] Arranging the pump slot 131, transmission slot 132, and motor slot 133 sequentially along the length of the pump housing 100 fully utilizes the internal space of the pump housing 100, ensuring that all components are effectively housed within the pump housing 100 and reducing the overall volume. The different slot structures allow for the separate positioning of components such as the drive motor 310 and transmission mechanism 320, reducing interference between components. In particular, the isolation of the drive motor 310 from other components helps prevent moisture from affecting the drive motor 310, enhancing the safety and reliability of the water pump 1. Simultaneously, the independent slot structure for positioning the drive motor 310 and transmission mechanism 320 simplifies the assembly and disassembly of components, making maintenance or component replacement easier and saving time and effort for users.

[0050] In some optional embodiments of this utility model, such as Figure 4As shown, the transmission mechanism 320 includes a gear transmission mechanism 321, a transmission cover 322, and a piston rod 323. The gear transmission mechanism 321 is located in the transmission groove 132 and is connected to the drive motor 310. A cam 301 is formed on one side of the gear transmission mechanism 321 in the thickness direction. The transmission cover 322 is fitted with the cam 301, and the cam 301 drives the transmission cover 322 to move axially along the piston rod 323. The piston rod 323 is connected to one end of the transmission cover 322 to pump water to the outlet. The transmission groove 132 is constructed with a slide rail extending in a straight line, and the transmission cover is fitted with the slide rail to move in a straight line.

[0051] For example, the gear transmission mechanism 321 is rotatably connected to the drive motor 310, converting the rotational power of the drive motor 310 into mechanical energy. The cam 301 of the gear transmission mechanism 321 is connected to the transmission cover 322. The driving force of the drive motor 310 causes the cam 301 to produce a circular motion, which is then converted into the reciprocating motion of the transmission cover 322. The piston rod 323 moves with the movement of the transmission cover 322. The piston rod 323 connected to the transmission cover 322 moves along its axial direction to squeeze the water flow channel in the water outlet mechanism 200, thereby pushing the water flow to be discharged in the direction of the outlet.

[0052] According to the water pump 1 of the water flosser in this embodiment of the present invention, the cam 301 performs circular motion under the driving force of the drive motor 310 and the gear transmission mechanism 321. The cam 301 drives the transmission cover 322 to perform smooth reciprocating motion. Through the cooperation between the transmission cover 322 and the cam 301, the transmission cover 322 converts the swing motion of the cam 301 into linear motion, ensuring stability in the transmission process, reducing the energy loss caused by excessive swing of the cam 301, and reducing the generation of vibration and noise. Meanwhile, the transmission cover 322 is not only connected to the cam 301, but also stably installed inside the water pump housing 100, providing guidance for the piston rod 323 of the transmission cover 322, ensuring that the transmission cover 322 maintains a straight reciprocating motion during movement, avoiding swaying or instability. During the rotation of the gear transmission mechanism 321, the transmission cover 322 moves in coordination with the cam 301, limiting the reciprocating motion range, so that the water outlet mechanism 200 continuously squeezes out water flow, which makes the movement of the piston rod 323 more stable, ensuring the consistency of water flow output, and guaranteeing the reliable operation of the water pump 1 of the oral irrigator.

[0053] When the transmission cover 322 drives the piston rod 323 to reciprocate, the piston rod 323 can move along a predetermined trajectory due to the guiding device of the water outlet mechanism 200. This makes the water flow in the water channel more evenly compressed, and the water outlet mechanism 200 can efficiently discharge the water, thereby improving the rinsing effect. Through the good cooperation between the gear transmission mechanism 321 and the transmission cover 322 and other components, the movement of the entire structure of the water pump 1 of the oral irrigator is more coordinated, thereby achieving efficient and stable water flow output and providing a better rinsing experience.

[0054] In some optional embodiments of this utility model, such as Figures 1-4 As shown, the oral irrigator pump 1 also includes a water inlet pipe 400. One end of the water inlet pipe 400 is connected to the water inlet nozzle 102, and the other end extends to the end of the pump housing 100 away from the outlet. The pump housing 100 has a connector 103 for fixing the water inlet pipe 400, and the other end of the water inlet pipe 400 is inserted into the connector 103. The connector 103 can be located on the same side as the water inlet pipe 400, and the water inlet pipe 400 passes through the pump housing 100 and is directly connected to the connector. A sealing sleeve is provided at the connection between the connector 103 and the water inlet pipe 400 to prevent water leakage between the water inlet pipe 400 and the connector 103. By providing a tight seal, water leakage from the connection is effectively prevented, maintaining the airtightness of the oral irrigator pump 1.

[0055] The water inlet pipe 400 allows water to flow smoothly from the water inlet nozzle 102 into the water pump housing 100, ensuring an effective water supply and providing the necessary water volume for the normal operation of the oral irrigator pump 1. The connector 103 serves as a fixing point for the water inlet pipe 400, ensuring that the water inlet pipe 400 will not loosen or fall off during use. This stable connection ensures unobstructed water flow and avoids leakage or blockage problems caused by improper connection.

[0056] Meanwhile, the water inlet pipe 400 passing through the water pump housing 100 can effectively utilize the internal space, making the entire water flosser pump 1 more compact and avoiding redundant components occupying the internal space of the water flosser pump 1, thereby improving the overall appearance and design aesthetics of the water flosser pump 1.

[0057] The following describes a water flosser according to an embodiment of the present invention.

[0058] The oral irrigator according to the present invention includes the oral irrigator water pump 1 of the above-described embodiments of the present invention.

[0059] The oral irrigator according to the present invention has advantages such as good sealing performance and high reliability by utilizing the oral irrigator water pump 1 of the above-described embodiment of the present invention.

[0060] The water pump 1 and other components and operations of the oral irrigator according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0061] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0062] Although embodiments of the invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. An oral irrigator water pump, characterized by, The oral irrigator water pump comprises a water pump shell, a water outlet mechanism, and a driving mechanism. The water outlet mechanism comprises a pump body and a water inlet connector, the water inlet connector is installed on the pump body, the pump body and the water inlet connector are arranged in the water pump shell, the pump body is configured with a water outlet, the water inlet connector is configured with a water inlet, and the water inlet connector and the pump body jointly form a pump body water channel connecting the water inlet and the water outlet. The driving mechanism is installed in the water pump shell, extends into the pump body water channel, and drives the water outlet mechanism to pump water to the water outlet. The water pump shell is configured with a through hole, the through hole is opposite to the water outlet, the water inlet connector is provided with a water inlet nozzle, and the water inlet nozzle extends out of the water pump shell from the through hole. The water pump shell comprises a first half shell and a second half shell.

2. The oral irrigator water pump of claim 1, wherein, The first half shell is configured with a receiving groove, the water outlet mechanism and the driving mechanism are installed in the receiving groove, and the second half shell is installed with the first half shell to close the receiving groove. The side of the first half shell facing the second half shell is configured with a notch, and the second half shell closes the opening side of the notch to form the through hole.

3. The oral irrigator water pump of claim 2, wherein, One of the first half shell and the second half shell is configured with a buckle, and the other is configured with a clamping hole.

4. The oral irrigator water pump of claim 2, wherein, One of the first half shell and the second half shell is configured with a first clamping edge on the side away from the other, and the first clamping edge is suitable for clamping and fixing a circuit board.

5. The oral irrigator water pump of claim 2, wherein, One of the first half shell and the second half shell is configured with a second clamping edge on the side away from the other, and the second clamping edge is suitable for clamping and fixing a battery.

6. The oral irrigator water pump of claim 2, wherein, The driving mechanism comprises a driving motor and a transmission mechanism.

7. The oral irrigator water pump of claim 2, wherein, The transmission mechanism is in transmission connection with the driving motor. The receiving groove comprises a pump groove, a transmission groove, and a motor groove arranged in sequence along the length direction of the water pump shell. The transmission mechanism comprises a gear transmission mechanism and a transmission cover. The gear transmission mechanism is located in the transmission groove and is in transmission connection with the driving motor.

8. The oral irrigator water pump of claim 7, wherein, The transmission cover is matched with the cam, the cam drives the transmission cover to move along the axial direction of the piston rod. The piston rod is connected to one end of the transmission cover to pump water to the water outlet. The transmission groove is configured with a sliding rail extending in a straight line, and the transmission cover is matched with the sliding rail to move in a straight line. The oral irrigator water pump further comprises a water guide pipe. One end of the water guide pipe is connected to the water inlet nozzle, and the other end of the water guide pipe extends to the end of the water pump shell away from the water outlet.

9. The oral irrigator water pump of claim 1, wherein, ​ ​ In the water pump, the water guide pipe is inserted into the joint portion of the water pump housing.

10. An oral irrigator characterized by, Comprising: The water pump of any one of claims 1-9.

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