Water pump with joint convenient to lock

Abstract

The utility model provides a kind of water pump of water pump connector is locked easily, including rack, water pump main body, locking wrench and two water pump connectors, water pump main body is fixedly installed in rack, two water pump connectors are connected with the water outlet and water inlet of water pump main body respectively, and the outer periphery side of water pump connector is connected with at least three force pawls, the first side and the second side opposite of force pawl end away from water pump connector are parallel, the normal line of first side and second side is perpendicular to the axis of water pump connector, locking wrench includes the connecting section, the avoidance extension section and the handheld section connected in turn and is distributed in Z shape, connecting section is engaged with any one force pawl, and avoidance extension section is used to extend handheld section to rack outside to expand force space. Solve the technical problem that existing technology in compact space when locking water pump connector staff cannot effectively force, and easily slip, so that water pump connector and gasoline engine water pump's water inlet and water outlet close tightly density is low, causes fluid leakage.

Description

Technical Field

[0001] This utility model relates to the field of gasoline engine water pump technology, and in particular to a water pump that facilitates locking the water pump connector. Background Technology

[0002] Gasoline engine water pumps, as efficient and convenient mobile fluid transport devices, are widely used in agricultural irrigation, emergency drainage, and fire-fighting assistance. Their core is a water pump driven by a gasoline engine. To improve the overall structural strength, portability, and operational stability, most mainstream gasoline engine water pumps on the market today adopt an integrated design, compactly mounting the engine, water pump, and its control system within a single rigid frame. This frame design not only facilitates handling and storage but also provides reliable support and protection for all components.

[0003] To control manufacturing costs and pursue miniaturization, manufacturers typically design such racks to be extremely compact. However, while this compactness brings cost and size advantages, it also results in insufficient space for applying force when tightening the water pump connector. In particular, current water pump connectors only have two symmetrically arranged force-applying lugs, making it difficult for operators to select an effective force point when tightening the water pump connector in the confined space. This leads to poor fit between the water pump connector and the inlet and outlet of the gasoline engine water pump, causing fluid leakage. Utility Model Content

[0004] The purpose of this application is to provide a water pump that facilitates locking the water pump connector, thereby solving the technical problem in the prior art where workers cannot select a force application point to effectively apply force when locking the water pump connector in a confined space, resulting in low tightness between the water pump connector and the inlet and outlet of the gasoline engine water pump, causing fluid leakage.

[0005] To achieve the above objectives, the embodiments of this application adopt the following technical solutions:

[0006] A water pump that facilitates locking of water pump connectors includes a frame, a water pump body, and two water pump connectors;

[0007] The main body of the water pump is fixedly installed inside the frame;

[0008] The two pump connectors are respectively connected to the outlet and inlet of the pump body, and at least three force-applying pawls are connected to the outer periphery of the pump connectors.

[0009] The water pump described in this application embodiment for easy locking of the water pump connector also includes a locking wrench, which engages with any one of the force-applying pawls.

[0010] In a water pump that facilitates locking the water pump connector as described in the embodiments of this application, the locking wrench includes a connecting section, an avoidance extension section, and a hand-held section that are connected in sequence and distributed in a Z-shape;

[0011] The connecting section includes a base plate and two side plates. The base plate is connected to the clearance extension section, and the two side plates are respectively connected to opposite ends of the base plate.

[0012] In use, the base plate and the two side plates are attached to the force-applying pawl to engage the locking wrench with the force-applying pawl. The clearance extension is used to extend the hand-held section outside the frame to expand the force-applying space.

[0013] In a water pump that facilitates locking the water pump connector as described in the embodiments of this application, at least one threaded cylinder and at least one positioning pin are provided on the bottom crossbeam of the frame, a wing nut is connected to the threaded cylinder, and at least two fixing through holes are provided on the locking wrench.

[0014] When the locking wrench is not in use, the locking wrench is fixed to the frame by the threaded cylinder, the wing nut, the locating pin, and the two fixing through holes.

[0015] In a water pump that facilitates locking the water pump connector as described in the embodiments of this application, at least three of the force-applying pawls are arranged in a circular array around the central axis of the water pump connector on the outer periphery of the water pump connector.

[0016] In a water pump that facilitates locking the water pump connector as described in the embodiments of this application, the first side and the second side of the force-applying pawl that are opposite each other at the end away from the water pump connector are parallel to each other, and the normals of the first side and the second side are both perpendicular to the axis of the water pump connector.

[0017] In the water pump described in the embodiments of this application, which facilitates locking of the water pump connector, the water pump connector includes a sealing ring, a water pump connector lock nut, and a water pump pipe connector;

[0018] The two sealing rings are respectively connected to the water outlet and the water inlet, the two water pump pipe joints are respectively sleeved in the two water pump joint lock nuts and abut against the two sealing rings, the two water pump joint lock nuts are respectively connected to the water outlet and the water inlet to lock the two water pump pipe joints on the water outlet and the water inlet respectively, and at least three force-applying pawls are connected to the outer periphery of the water pump joint lock nuts.

[0019] In a water pump that facilitates locking the water pump connector according to an embodiment of this application, both the outlet and the inlet are provided with external threads on their outer sides. The lock nut of the water pump connector is provided with an internal thread that matches the external threads. A limit ring is provided at the end of the lock nut that is away from the water pump body. A limit protrusion is provided at the end of the water pump pipe connector that is close to the sealing ring. When the lock nut of the water pump connector is threaded and tightened at the outlet or the inlet, the limit ring abuts against the limit protrusion.

[0020] In a water pump that facilitates locking of a water pump connector as described in the embodiments of this application, a plurality of square holes are uniformly provided on the force-applying pawl, and the axial direction of the square holes is parallel to the axial direction of the water pump connector.

[0021] In the water pump described in this application embodiment, which facilitates locking the water pump connector, the four corners of the square hole are all rounded.

[0022] Compared with the prior art, the embodiments of this application have the following beneficial effects:

[0023] As can be seen from the above technical solution, the water pump provided in this application embodiment is easy to lock. By setting at least three force-applying pawls on the water pump connector as locking force points, the influence of the frame, water pump body, etc. on the operator's selection of force points is reduced. At the same time, by setting a locking wrench, the avoidance extension of the locking wrench extends the hand-held section outside the frame, avoiding the frame from affecting the locking of the water pump connector. The operator can generate sufficient torque for locking the water pump connector by applying force to any force point through the locking wrench. This solves the technical problem in the prior art where the operator cannot effectively apply force when locking the water pump connector in a compact space, resulting in low tightness between the water pump connector and the inlet and outlet of the gasoline engine water pump, causing fluid leakage. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. The drawings are not intended to be drawn to scale, and for clarity, not every component will be labeled in each drawing. The drawings described below are merely some embodiments of this application. Those skilled in the art can obtain other drawings based on these drawings without creative effort. Wherein:

[0025] Figure 1 This is a schematic diagram of the structure of an embodiment of this application.

[0026] Figure 2 This is a structural schematic diagram from another perspective of an embodiment of this application.

[0027] Figure 3 yes Figure 2A magnified view of part A in the diagram.

[0028] Figure 4 This is an exploded schematic diagram of the water pump connector in an embodiment of this application.

[0029] Figure 5 This is a schematic diagram of the structure of the water pump connector lock nut in the embodiment of this application.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1-Frame, 2-Pump body, 3-Lock wrench, 4-Pump connector, 5-Outlet, 6-Inlet, 7-Force pawl, 8-First side, 9-Second side, 10-Connecting section, 11-Allowing extension section, 12-Handheld section, 13-Sealing ring, 14-Pump connector lock nut, 15-Pump pipe connector, 16-Limiting ring, 17-Limiting protrusion, 18-Fitting side plate, 19-Square hole, 20-Threaded cylinder, 21-Positioning pin, 22-Wing nut, 23-Fixing through hole. Detailed Implementation

[0032] To control manufacturing costs and pursue miniaturization, current gasoline engine water pumps are typically designed with extremely compact frames. However, while this compactness brings cost and size advantages, it also results in insufficient space for tightening the water pump connector. In particular, current water pump connectors only have two symmetrically placed force-applying lugs, making it difficult for workers to apply effective force when tightening the connector in the confined space. This leads to poor sealing between the water pump connector and the inlet and outlet of the gasoline engine water pump, causing fluid leakage.

[0033] In view of this, the present application provides a water pump that facilitates the locking of the water pump connector. The concept is to set at least three force-applying pawls on the water pump connector as locking force points, reducing the influence of the frame, water pump body, etc. on the operator's selection of the force point. At the same time, by setting a locking wrench, the avoidance extension of the locking wrench extends the handle outside the frame, avoiding the frame from affecting the locking of the water pump connector. The operator can generate sufficient torque for locking the water pump connector by applying force to any one of the force points through the locking wrench. This solves the technical problem in the prior art where the operator cannot effectively apply force when locking the water pump connector in a compact space, resulting in low tightness between the water pump connector and the inlet and outlet of the gasoline engine water pump, causing fluid leakage.

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0035] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0036] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0037] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0039] This application provides a water pump that facilitates locking the water pump connector, such as... Figures 1 to 5 As shown. A water pump that facilitates locking of water pump connectors includes a frame 1, a water pump body 2, a locking wrench 3, and two water pump connectors 4.

[0040] The water pump body 2 is fixedly installed inside the frame 1. The two water pump connectors 4 are respectively connected to the water outlet 5 and the water inlet 6 of the water pump body 2. At least three force-applying pawls 7 are connected to the outer periphery of the water pump connectors 4.

[0041] Specifically, at least three of the force-applying pawls 7 are arranged in a circular array around the central axis of the water pump connector 4 on the outer periphery of the water pump connector 4. The water pump connector 4 includes a sealing ring 13, a water pump connector lock nut 14, and a water pump pipe connector 15. Two of the sealing rings 13 are respectively connected to the outlet 5 and the inlet 6. Two of the water pump pipe connectors 15 are respectively fitted into two of the water pump connector lock nuts 14 and abut against the two of the sealing rings 13. Two of the water pump connector lock nuts 14 are respectively connected to the outlet 5 and the inlet 6 to lock the two water pump pipe connectors 15 onto the outlet 5 and the inlet 6, respectively. Three force-applying pawls 7 are connected to the outer periphery of the water pump connector lock nut 14. The outer sides of the water outlet 5 and the water inlet 6 are provided with external threads, and the water pump connector lock nut 14 is provided with internal threads that match the external threads, so that the water pump connector lock nut 14 can be threadedly connected to the water outlet 5 and the water inlet 6. The end of the water pump connector lock nut 14 away from the water pump body 2 is provided as a limiting ring 16, and the end of the water pump pipe connector 15 near the sealing ring 13 is provided with a limiting protrusion 17. When the water pump connector lock nut 14 is threadedly tightened to the water outlet 5 or the water inlet 6, the limiting ring 16 abuts against the limiting protrusion 17.

[0042] The preferred number of the force-applying pawls 7 is three or four. In this embodiment, the number of force-applying pawls 7 is four. When the water pump connector lock nut 14 is threadedly fastened to the water outlet 5 or the water inlet 6, the limiting ring 16 clamps the limiting protrusion 17 onto the water outlet 5 or the water inlet 6 through the sealing ring 13, so as to achieve the purpose of fastening the water pump pipe connector 15 to the water outlet 5 or the water inlet 6.

[0043] The locking wrench 3 engages with any one of the force-applying pawls 7.

[0044] By setting the locking wrench 3, the lever arm is increased and the point of force application is extended to the outside of the frame 1, making it easier for the staff to lock the water pump connector 4.

[0045] Specifically, the locking wrench 3 includes a connecting section 10, an avoidance extension section 11, and a handheld section 12 that are connected sequentially and arranged in a Z-shape. The connecting section 10 engages with any one of the force-applying pawls 7. Specifically, the connecting section 10 includes a base plate and two side plates 18. The base plate is connected to the avoidance extension section 11, and the two side plates 18 are respectively connected to opposite ends of the base plate. In use, the base plate and the two side plates 18 are attached to the force-applying pawl 7 to achieve engagement between the locking wrench 3 and the force-applying pawl 7. The avoidance extension section 11 is used to extend the handheld section 12 outside the frame 1 to expand the force-applying space.

[0046] Preferably, to facilitate better engagement of the locking wrench 3 into the force-applying pawl 7 and reduce the risk of slippage during force application, the first side 8 and the second side 9 of the force-applying pawl 7, located away from the water pump connector 4, are arranged to be parallel to each other, with the normals of both sides perpendicular to the axis of the water pump connector 4. It should be noted that, in this application, the parallel first side 8 and the second side 9 do not extend to the end where the force-applying pawl 7 connects to the water pump connector lock nut 14. The end where the force-applying pawl 7 connects to the water pump connector lock nut 14 generally still exhibits a trapezoidal structure with a gradually changing cross-section to avoid stress concentration and breakage at the connection point.

[0047] Among them, specifically such as Figure 1As shown in the figure, the water pump connector 4 and the locking wrench 3 are located in the lower part of the frame 1. The connecting section 10 of the locking wrench 3 is located inside the frame 1 and is engaged with the force-applying pawl 7. One end of the clearance extension section 11 of the locking wrench 3 is connected to the connecting section 10, and the other end extends to the outside of the frame 1 and is connected to the handle section 12 of the locking wrench 3 to expand the force application space, so that the operator can apply force to the force-applying pawl 7 through the locking wrench 3 outside the frame 1 to lock the water pump connector 4. The vertical distance between the first side 8 and the second side 9 is defined as H, and the vertical distance between the two mating side plates 18 is defined as h, then H ≤ h is satisfied. It should be noted that the vertical distance h between the two mating side plates 18 can be equal to the vertical distance H between the first side plate 8 and the second side plate 9, so as to achieve a tight engagement between the connecting segment 10 and the force-applying pawl 7. Alternatively, it can be slightly larger than the vertical distance H between the first side plate 8 and the second side plate 9, so that the connecting segment 10 can more easily engage with the force-applying pawl 7, for example, hH=1mm.

[0048] In some preferred embodiments, the force-applying pawl 7 is provided with a plurality of square holes 19 evenly, the axial direction of the square holes 19 being parallel to the axial direction of the water pump connector 4. By evenly providing a plurality of square holes 19 on the force-applying pawl 7, a reinforcing rib structure is formed on the force-applying pawl 7 to enhance the structural strength of the force-applying pawl 7.

[0049] In some preferred embodiments, the four corners of the square hole 19 are all rounded. By making the four corners of the square hole 19 rounded, stress concentration at right angles is avoided, and breakage or damage caused by local stress concentration is prevented.

[0050] In some preferred embodiments, at least one threaded cylinder 20 and at least one locating pin 21 are provided on the bottom crossbeam of the frame 1. A wing nut 22 is threadedly connected to the threaded cylinder 20. The locking wrench 3 is provided with at least two fixing through holes 23. When the locking wrench 3 is not in use, the locking wrench 3 is fixed to the frame 1 through the threaded cylinder 20, the locating pin 21, the wing nut 22 and the two fixing through holes 23.

[0051] In summary, the water pump provided in this application embodiment facilitates the locking of the water pump connector. By setting at least three force-applying pawls on the water pump connector as locking force points, the influence of the frame, water pump body, etc. on the operator's selection of the force point is reduced. At the same time, by setting a locking wrench, the avoidance extension of the locking wrench extends the handle outside the frame, avoiding the frame from affecting the locking of the water pump connector. The operator can generate sufficient torque for locking the water pump connector by applying force to any one of the force points through the locking wrench. This solves the technical problem in the prior art where the operator cannot effectively apply force when locking the water pump connector in a compact space, resulting in low tightness between the water pump connector and the inlet and outlet of the gasoline engine water pump, causing fluid leakage.

[0052] The above provides a detailed description of a water pump that facilitates locking the water pump connector, as provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A water pump facilitating locking of a water pump joint, characterized by, Includes the frame, the main body of the water pump, and two water pump connectors; The main body of the water pump is fixedly installed inside the frame; The two pump connectors are respectively connected to the outlet and inlet of the pump body, and at least three force-applying pawls are connected to the outer periphery of the pump connectors.

2. A water pump facilitating locking of a water pump joint as claimed in claim 1, wherein, It also includes a locking wrench, which engages with any of the force-applying pawls.

3. A water pump facilitating locking of a water pump joint as claimed in claim 2, wherein, The locking wrench includes a connecting section, an avoidance extension section, and a hand-held section that are connected sequentially and distributed in a Z-shape. The connecting section includes a base plate and two side plates. The base plate is connected to the clearance extension section, and the two side plates are respectively connected to opposite ends of the base plate. In use, the base plate and the two side plates are attached to the force-applying pawl to engage the locking wrench with the force-applying pawl. The avoidance extension is used to extend the hand-held section outside the frame to expand the force-applying space.

4. A water pump facilitating locking of a water pump joint as claimed in claim 2 wherein, The bottom crossbeam of the frame is provided with at least one threaded cylinder and at least one positioning pin. A wing nut is connected to the threaded cylinder, and the locking wrench is provided with at least two fixing through holes. When the locking wrench is not in use, the locking wrench is fixed to the frame by the threaded cylinder, the wing nut, the locating pin, and the two fixing through holes.

5. A water pump facilitating locking of a water pump joint as claimed in claim 1, wherein, At least three of the force-applying pawls are arranged in a circular array around the central axis of the water pump connector on the outer periphery of the water pump connector.

6. A water pump facilitating locking of a water pump joint as claimed in claim 1, wherein, The first and second sides of the force-applying pawl, which are opposite each other at the end away from the water pump connector, are parallel to each other, and the normals of the first and second sides are both perpendicular to the axis of the water pump connector.

7. A water pump as described in claim 1, characterized in that, The water pump connector includes a sealing ring, a water pump connector lock nut, and a water pump pipe connector. The two sealing rings are respectively connected to the water outlet and the water inlet, the two water pump pipe joints are respectively sleeved in the two water pump joint lock nuts and abut against the two sealing rings, the two water pump joint lock nuts are respectively connected to the water outlet and the water inlet to lock the two water pump pipe joints on the water outlet and the water inlet respectively, and at least three force-applying pawls are connected to the outer periphery of the water pump joint lock nuts.

8. A water pump facilitating locking of a water pump joint as claimed in claim 7, wherein, Both the outlet and the inlet are provided with external threads on their outer sides. The pump connector lock nut is provided with an internal thread that matches the external thread. A limit ring is provided at the end away from the pump body. A limit protrusion is provided at the end of the pump pipe connector near the sealing ring. When the pump connector lock nut is threaded and tightened at the outlet or the inlet, the limit ring abuts against the limit protrusion.

9. A water pump as described in claim 1, characterized in that, The force-applying pawl is provided with several square holes evenly distributed on it, and the axial direction of the square holes is parallel to the axial direction of the water pump connector.

10. A water pump as described in claim 9, characterized in that, The four corners of the square hole are all rounded.

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