A water pump body coupling structure

Abstract

This utility model discloses a pump body connection structure, including a pump body connector and a pipe connector. The pump body connector is provided with a plug tube, an outer sheath, and a conical head. The pipe connector is provided with a sleeve seat, a locking ring, and a locking assembly. The locking assembly includes a main ring and multiple stop plates, and several pressure-stopping pins are provided on the inner side of the locking ring. After the plug tube is inserted into the sleeve seat, the conical head and the sealing gasket layer inside the sleeve seat seal and engage. The locking assembly achieves initial locking by the stop plates abutting against the side of the conical head. The pressure-stopping pins slide against the surface of the stop plates to further limit the locking assembly, forming a stable and robust multi-locking and sealing structure. This structure has the advantages of high connection stability, good sealing effect, and convenient assembly and disassembly, and is suitable for rapid connection scenarios of pump bodies in various water pump systems.

Description

Technical Field

[0001] This utility model relates to the technical field of water pump pipe connection structure, specifically a water pump body connection structure. Background Technology

[0002] In existing water pump systems, the connection between the pump body and the delivery pipeline mostly uses threaded connections, flange fixings, or clamp tightening. While these structures can achieve basic fluid passage connection and sealing, they generally have the following shortcomings:

[0003] Traditional threaded or flanged connections involve cumbersome assembly steps, require tools for tightening, and have low disassembly and maintenance efficiency, making them particularly inconvenient in situations with limited space or frequent maintenance. Furthermore, human intervention during the connection process can easily cause gasket misalignment or insufficient clamping force, leading to leakage problems and affecting the safety of system operation.

[0004] Furthermore, while quick-connect structures using clamp locking mechanisms offer some assembly efficiency, they often suffer from insufficient structural strength or poorly designed locking mechanisms. This can lead to loosening or sealing failure under high-pressure transmission or vibration conditions, making it impossible to maintain a stable connection over the long term. Additionally, the locking mechanisms often lack multi-stage anti-loosening or precise limit designs, posing a risk of detachment of the plug-in components during long-term use, thus affecting the reliability and lifespan of the equipment.

[0005] Therefore, existing pump body connection technologies still have significant room for improvement in terms of sealing performance, assembly / disassembly efficiency, and locking reliability. There is an urgent need for a pump body connection structure that is simple in structure, has reliable sealing performance, high locking stability, and is easy to assemble and disassemble quickly, in order to improve the overall system operating efficiency and safety. Utility Model Content

[0006] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0007] Therefore, the technical solution adopted by this utility model is as follows: a water pump body connection structure, including key components such as pump body connection end, pipe connection end, plug pipe, cone head, locking kit, locking ring, and pressure relief pin, which completes sealing, locking and limiting operations through multi-layer cooperation to ensure the high stability and reliability of the connection structure during water pump operation.

[0008] In a preferred embodiment, the pump body connection is further configured as follows: a plug tube and an outer sheath are provided on the surface of the connection end, the plug tube and the outer sheath are arranged coaxially, and a cone head is fixedly installed at the end of the plug tube; a sleeve seat is provided on the surface of the connection end, a locking ring is slidably fitted on the outer side of the sleeve seat, and several pressure-stopping pins are fixed on the inner side of the locking ring; a locking kit is slidably installed inside the sleeve seat, the locking kit is an integrally formed structure, including a main ring and multiple stop plates, the stop plates cooperate with the side of the cone head on the plug tube to achieve initial locking. Specifically, this structure allows the plug tube to be inserted into the sleeve seat, the cone head and the inner sealing gasket to form a first layer of seal, then the locking kit abuts against the cone head to complete mechanical locking, and then the pressure-stopping pins limit the position of the stop plates to prevent loosening caused by elastic displacement, thereby enhancing the overall structure's vibration resistance and operational safety.

[0009] In a preferred embodiment, the sleeve seat is further configured such that a mating groove is formed inside to mate with the conical head, and a sealing gasket is provided within the mating groove to form a sealing transition zone by fitting against the surface of the conical head. Specifically, this structure improves the sealing effect between the plug end and the pipe fitting end, preventing leakage of the conveyed medium.

[0010] In a preferred embodiment, the pressure-stopping pin and the stop plate are configured in a one-to-one correspondence. The pressure-stopping pin slides through a groove on the locking ring and its end presses against the surface of the stop plate, thus completing the limiting operation of the locking assembly during the pushing process of the locking ring. Specifically, this structure achieves the linkage between the pressure-stopping pin and the stop plate, effectively fixing the locking assembly and preventing its displacement or loosening during pump operation.

[0011] In a preferred embodiment, the locking assembly is further configured such that the locking element is conical, tapering towards the pump body connection and the pipe connection, with the stop plate being oblique and its end abutting against the sidewall of the conical head. Specifically, this structure creates a self-locking wedge-tightening effect, further enhancing the locking force and strengthening the structure's resistance to pull-out.

[0012] In a preferred embodiment, the internal flow channel at the pump body connection extends through the plug pipe and the conical head, while the internal flow channel at the pipe connection end extends through the sleeve seat, forming a continuous liquid delivery path. Specifically, this design ensures channel connectivity during pump operation and reduces flow resistance.

[0013] In a preferred embodiment, the outer sheath is further configured such that its inner diameter is equal to the outer diameter of the sleeve seat, the sleeve seat end has a sleeve hole adapted to the plug tube, and the inner wall of the outer sheath also has a sealing ring that abuts against the end face of the sleeve seat. Specifically, this structure constitutes a second radial sealing interface, further improving sealing reliability and adapting to high-pressure operating conditions.

[0014] In summary, this utility model, through its structural design of plug-cone combination, sleeve hole insertion, locking kit with stop plate clamping, pressure-stopping pin limiting stop plate, and double sealing ring control, achieves the functions of quick connection, reliable locking, and multi-layer sealing. It significantly improves the problems of inconvenient assembly and disassembly, poor sealing, and loose connection existing in the prior art, and has broad application prospects.

[0015] The beneficial effects achieved by this utility model are as follows:

[0016] 1. In this utility model, the plug tube and the cone structure can be stably inserted into the pipe end, and through the multi-layer sealing design (including the cone contacting the sealing gasket layer and the outer sheath contacting the sealing ring at the end of the sleeve hole), the sealing performance of the connection part is effectively improved, liquid leakage is prevented, and the airtightness and reliability of the system are enhanced.

[0017] 2. In this utility model, by setting a locking kit and its stop plate structure, combined with the pressure-stopping pin built into the locking ring sliding against the stop plate, multi-level locking and anti-loosening control of the plug tube is realized, which improves the mechanical strength and vibration resistance of the connection structure, ensures that a stable connection can still be maintained under high pressure or fluid impact conditions, facilitates rapid assembly and efficient disassembly operations, and has significant practical value and engineering application prospects. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0019] Figure 2 This is a cross-sectional structural diagram of one embodiment of the present invention;

[0020] Figure 3 This is an exploded structural diagram of the pump body connection end and pipe connection end according to an embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of the plug tube and locking kit structure of one embodiment of the present invention.

[0022] Figure label:

[0023] 100. Pump body connector; 110. Outer sheath; 120. Plug tube; 121. Cone head; 200. Pipe connector end; 210. Sleeve seat; 220. Locking ring; 221. Pressure relief pin; 300. Locking kit; 301. Main ring; 302. Stop plate. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0025] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0026] The following describes, with reference to the accompanying drawings, some embodiments of a water pump body connection structure provided by this utility model.

[0027] Combination Figures 1-4 As shown, the present invention provides a pump body connection structure, including a pump body connector 100 and a pipe connector 200. An outer sheath 110 and a plug tube 120 are fixedly mounted on the surface of the pump body connector 100, and the outer sheath 110 and the plug tube 120 are arranged coaxially. A conical head 121 is fixedly mounted on one side of the plug tube 120 for insertion into the sleeve seat 210 of the pipe connector 200.

[0028] A sleeve seat 210 is provided on the surface of the pipe fitting end 200, and a locking ring 220 is slidably sleeved on the surface of the sleeve seat 210. Several pressure-stopping pins 221 are fixedly installed on the inner side of the locking ring 220. The pressure-stopping pins 221 slide through the sliding groove on the locking ring 220 and slide against the surface of the stop piece 302 (described later). A locking kit 300 is movably installed on the inner side of the sleeve seat 210. The locking kit 300 is an integrally formed structure, including a main ring 301 and several stop pieces 302 located on one side of the main ring 301.

[0029] In actual use, the operator inserts the plug tube 120 into the sleeve seat 210 in the pipe fitting end 200. The cone 121 on the plug tube 120 inserts into the engagement groove and abuts against the sealing gasket layer in the engagement groove, forming the first layer of seal. Subsequently, the locking kit 300 is pushed to the outside of the cone 121 of the plug tube 120, so that the ends of several stop pieces 302 abut against the side of the cone 121, thereby achieving the initial locking of the plug tube 120.

[0030] To further improve locking reliability, the operator pushes the locking ring 220 so that the pressure-stopping pin 221 on the inner side of the locking ring 220 abuts against the surface of the stop plate 302, further locking the locking assembly 300 and preventing it from undergoing elastic deformation during the force process, ensuring a firm and reliable connection between the plug tube 120 and the tube end 200.

[0031] Preferably, the pressure-stopping pins 221 and the stop pieces 302 are arranged in a one-to-one correspondence, and the end of the pressure-stopping pin 221 slides against the surface of the stop piece 302; a groove is provided on the surface of the pipe end 200 to guide the pressure-stopping pin 221 to slide, and the pressure-stopping pin 221 moves through the groove to achieve axial limiting and stable locking of the plug tube 120.

[0032] Furthermore, the locking assembly 300 is generally conical in shape, tapering towards the pump body end 100 and the pipe end 200. The stop plate 302 is oblique in shape, with one end abutting against the surface of the cone head 121 to enhance locking force and sealing.

[0033] As shown in the figure, the internal flow channel of the pump body connector 100 passes through the pump body connector 100, the plug pipe 120 and the cone head 121, forming a channel on one side of the water pump; at the same time, the internal flow channel of the pipe connector 200 passes through the pipe connector 200 and the sleeve seat 210, forming a channel on the other side, so as to realize the smooth transport of fluid.

[0034] In terms of structural fit, the inner diameter of the outer sheath 110 is equal to the outer diameter of the sleeve seat 210, and a sleeve hole adapted to the end of the plug tube 120 is provided on one side of the sleeve seat 210; a sealing ring is provided on the inner side of the outer sheath 110 to abut against the end of the sleeve seat 210, thereby achieving a second layer of sealing fit during insertion.

[0035] Through the above-described structural fit and assembly steps, this utility model forms a quick connection mechanism with axial locking, radial limiting and multiple sealing functions, which is particularly suitable for the reliable and quick installation and disassembly of water pump bodies and has high practical value.

[0036] Working principle and usage process of this utility model:

[0037] This utility model achieves a reliable connection of the water pump delivery channel by connecting the pump body end 100 and the pipe end 200. Specifically, the connection and sealing are achieved through the following structural cooperation:

[0038] The plug tube 120 and the cone 121 extend into the tube end 200, forming a sealed fit with the internal engagement groove and sealing gasket.

[0039] After the cone 121 on the plug tube 120 is inserted into the sleeve seat 210 and abuts against the sealing gasket, it further cooperates with the locking kit 300 so that the ends of several stop pieces 302 on the surface of the locking kit 300 abut against the side of the cone 121, thereby locking the plug tube 120, and then locking the surface of the cone 121 by the locking kit 300.

[0040] The sliding locking ring 220 then slides, causing the multiple pressure-stopping pins 221 on its inner side to abut against the surface of the stop piece 302, further locking the surface of the locking assembly 300 and preventing the plug tube 120 from disengaging due to elastic deformation of the locking assembly 300. The pressure-stopping pins 221 slide against the stop piece 302 through a groove, achieving axial limiting and stable locking of the plug tube; the overall structure forms a quick-connect mechanism with axial locking, radial limiting, and multiple sealing.

[0041] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is 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. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] Although embodiments of the present 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 present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A water pump body connection structure, characterized in that, include: The pump body connector (100) and the pipe connector (200) are provided with an outer sheath (110) and a plug tube (120) fixedly installed on the surface of the pump body connector (100), and the outer sheath (110) and the plug tube (120) are arranged coaxially. The pipe connector (200) is provided with a sleeve seat (210), and a locking ring (220) is slidably sleeved on the surface of the sleeve seat (210). Several pressure-stopping pins (221) are fixedly installed on the inner side of the locking ring (220). A locking kit (300) is movably installed on the inner side of the sleeve seat (210). The locking kit (300) is an integrally formed structure, including a main ring (301) and several stop pieces (302) located on one side of the main ring (301). A cone head (121) is fixedly installed on one side of the plug tube (120).

2. The pump body connection structure according to claim 1, characterized in that, The inner side of the pipe end (200) is provided with a mating groove that is compatible with the cone (121), and the inner side of the mating groove is provided with a sealing gasket that abuts against the cone (121).

3. The pump body connection structure according to claim 1, characterized in that, The pressure relief pin (221) and the stop plate (302) are arranged in a one-to-one correspondence. The end of the pressure relief pin (221) slides against the surface of the stop plate (302). The surface of the pipe end (200) is provided with a groove for guiding the pressure relief pin (221) to slide, and the pressure relief pin (221) moves through the groove.

4. The pump body connection structure according to claim 1, characterized in that, The locking assembly (300) is conical and tapers from the pump body end (100) to the pipe end (200). The stop plate (302) is oblique and one end of the stop plate (302) abuts against the surface of the cone head (121).

5. The pump body connection structure according to claim 1, characterized in that, The flow channel inside the pump body connector (100) passes through the pump body connector (100), the plug tube (120) and the cone (121), and the flow channel inside the pipe connector (200) passes through the pipe connector (200) and the sleeve seat (210).

6. The pump body connection structure according to claim 1, characterized in that, The inner diameter of the outer sheath (110) is equal to the outer diameter of the sleeve seat (210), and a sleeve hole adapted to the end of the plug tube (120) is provided on one side of the sleeve seat (210). A sealing ring that abuts against the end of the sleeve seat (210) is provided on the inner side of the outer sheath (110).

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