Water pump quick connection structure convenient to disassemble and assemble

Abstract

The utility model relates to the technical field of heating equipment, and discloses a water pump quick-connection structure convenient to disassemble and assemble, which comprises a stop ball valve, a quick-connection male head, a quick-connection female head and a clamp spring, the width of the clamp spring is increased, a square strip-shaped hole is changed into a round strip-shaped hole, the number of bent parts is increased from three to five, and the tail end is subjected to edge folding treatment, so that the performance of the water pump quick-connection structure is increased, and the service life of the water pump quick-connection structure is prolonged. The connectors at the two ends of the waterway are clamped through the clamping springs, it is guaranteed that pipelines at the two ends of the waterway can be connected together, waterway leakage is prevented, and replacement of the water pump can be completed only through simple operation without large-scale machine disassembly.

Description

Technical Field

[0001] The utility model relates to the technical field of heating equipment, in particular to a water pump quick-connect structure that is convenient for disassembly and assembly. Background Art

[0002] The water pump used in the heating machine is an integrated water pump, which is connected to the pipeline with a threaded joint. During its use, the water pump needs to be replaced frequently as a wearing part. When replacing, the water inside the heating machine needs to be drained before disassembly and assembly. This disassembly and assembly process requires a large installation space, and after disassembling the water pump, the pipeline of the water system will be filled with air. Therefore, the air needs to be emptied again after disassembling the water pump, resulting in a long replacement time for the water pump and cumbersome disassembly and assembly operations. At the same time, the copper pipes of the water channel are connected with a retaining spring. The service life of the retaining spring interface mainly depends on the structural strength of the retaining spring. The current retaining spring has three raised bends and the strip hole is square. The design water channel pressure that this retaining spring can withstand is small, while the actual water channel pressure is large. When the water channel pressure is greater than the design pressure of the retaining spring for a long time, this retaining spring will break, causing leakage in the water channel system. Utility Model Content

[0003] The utility model provides a water pump quick-connect structure that is convenient for disassembly and assembly, so as to solve the problems of long replacement time of the water pump, complicated disassembly and assembly operation, and broken retaining spring.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A water pump quick-connect structure that is easy to disassemble and assemble comprises a quick-connect male head, a quick-connect female head and a retaining spring, wherein a first interface is provided at one end of the quick-connect male head with a larger diameter, and a second interface is provided at the other end with a smaller diameter, and a first flange is raised between the first interface and the second interface; one end of the quick-connect female head is a third interface, and the third interface is turned outward to form a second flange, and the outer diameter of the second flange is consistent with the first flange; the other end of the quick-connect female head is a fourth interface, and the fourth interface shrinks inwardly to become smaller in diameter, and the second interface and the third interface are sleeved to the first flange and the second flange and are abutted and fixed by the retaining spring clamp, the retaining spring is a circular ring with an open end, and is provided with a plurality of raised bending parts, and the two ends of the bending parts are turned up toward the inner side of the retaining spring to form wrinkled edges, and a strip hole is opened at the groove adjacent to the bending part, and the strip hole extends to the adjacent bending part, and the extension height is higher than the height of the first flange turned up, and the width of the strip hole is consistent with the thickness of the flange edge after the first flange and the second flange abut.

[0006] Furthermore, the second interface is provided with an external thread.

[0007] Furthermore, the inner ring of the quick-connect female head is provided with an internal thread matching the second interface external thread of the quick-connect male head.

[0008] Furthermore, the second interface and the third interface are threadedly connected to the first flange and the second flange to abut against each other and are fixed by the retaining spring clamp.

[0009] Furthermore, a sealing groove is provided on the outer ring of the second interface of the quick-connect male connector.

[0010] Furthermore, an elastic sealing ring is installed in the sealing groove.

[0011] Furthermore, a cut-off ball valve is fixedly connected to the first interface of the quick-connect male connector.

[0012] Furthermore, the short side of the strip-shaped hole is arc-shaped.

[0013] Furthermore, the number of bent parts of the retaining spring protrusion is 5.

[0014] Furthermore, the quick-connect structure is used for quick connection between the water pump and the stop ball valve.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] A water pump quick-connect structure that is easy to disassemble and assemble is designed, including a stop ball valve, a quick-connect male head, a quick-connect female head and a retaining ring, so that the replacement of the water pump does not require large-scale machine disassembly, and can be completed with simple operations, including:

[0017] 1. The width of the circlip is increased, which has a greater waterway pressure bearing capacity than the existing circlip;

[0018] 2. The strip hole of the retaining spring is changed from square to round. The round hole has a larger force-bearing area and is less likely to break;

[0019] 3. The number of bending parts of the circlip is increased from 3 to 5, which increases the contact area with the water pipe joint, reduces the water pressure per unit area, and improves the strength;

[0020] 4. The end area of ​​the retaining spring is the weakest area and is most prone to cracks. The end of the retaining spring is treated with a wrinkled edge, which doubles the force-bearing area of ​​the existing retaining spring and improves the overall strength.

[0021] The above solution can effectively enhance the strength of the retaining spring, so that the water system of the water heater can withstand a certain degree of pressure exceeding its design, and the service life of the retaining spring and the sealing of the water system can be guaranteed. At the same time, the retaining spring cooperates with the stop ball valve, quick-connect male head and quick-connect female head to simplify the process of replacing the water pump, improve the equipment maintenance efficiency, reduce maintenance costs, and enhance user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the utility model quick-connect male connector, quick-connect female connector and their assembly;

[0024] Figure 3 This is a schematic diagram of the structure of the retaining spring of the utility model;

[0025] Figure 4 This is an exploded diagram of the quick-connect structure and water pump of the utility model;

[0026] Figure 5 A schematic diagram of a retaining spring of the prior art of the utility model;

[0027] In the figure: 100-water pump, 200-quick-connect female head, 210-third interface, 220-fourth interface, 230-second flange, 300-circlip, 310-bending part, 320-groove, 321-strip hole, 330-end of the bending part, 331-wrinkled edge, 400-quick-connect male head, 410-first interface, 420-second interface, 430-first flange, 440-sealing groove, 450-elastic sealing ring, 500-stop ball valve, 600-water pipe. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] like Figure 1 As shown, the utility model discloses a water pump quick-connect structure that is easy to disassemble and assemble, comprising a quick-connect male head, a quick-connect female head and a retaining spring, wherein a first interface is provided at one end of the quick-connect male head with a larger diameter, and a second interface is provided at the other end with a smaller diameter, and a first flange is raised between the first interface and the second interface; one end of the quick-connect female head is a third interface, and the third interface is turned outward to form a second flange, and the outer diameter of the second flange is consistent with the first flange; the other end of the quick-connect female head is a fourth interface, and the diameter of the fourth interface shrinks inward to become smaller, and the second interface and the third interface are sleeved to the first flange and the second flange to abut against each other and are fixed by the retaining spring clamp, and the retaining spring is a circular ring with an open end, and is provided with a plurality of raised bending parts, and the two ends of the bending parts are turned up toward the inner side of the retaining spring to form wrinkled edges, and a strip hole is opened at the groove adjacent to the bending part, and the strip hole extends to the adjacent bending part, and the extension height is higher than the height of the first flange turned up, and the width of the strip hole is consistent with the thickness of the flange edge after the first flange and the second flange abut against each other.

[0030] Preferably, the second interface is provided with an external thread.

[0031] Preferably, the inner ring of the quick-connect female head is provided with an internal thread matching the second interface external thread of the quick-connect male head.

[0032] like Figure 2 As shown, the second interface and the third interface are threadedly connected to the first flange and the second flange, abutted against each other and fixed by the retaining spring clamp.

[0033] like Figure 2 As shown, a sealing groove is provided on the outer ring of the second interface of the quick-connect male connector.

[0034] like Figure 2 As shown, an elastic sealing ring is installed in the sealing groove.

[0035] In actual use, the first interface of the quick-connect male connector is fixedly connected with a stop ball valve.

[0036] like Figure 3 As shown, the short side of the strip hole is arc-shaped.

[0037] like Figure 3 As shown, the number of the protruding bending parts of the retaining spring is 5. The width of the existing retaining spring is usually 10 to 16 mm. The width of the retaining spring of the utility model is increased to 20 mm, which has a greater water channel pressure bearing capacity than the existing retaining spring.

[0038] like Figure 4 As shown, the quick-connect structure is used for quick connection between the water pump and the stop ball valve.

[0039] The operating principle of the utility model is as follows:

[0040] When the user needs to replace the water pump, first, screw the stop ball valves at both ends of the water pump to the closed state. At this time, the water system is closed to prevent water leakage and gas from entering the water system; secondly, push the retaining ring in the opposite direction of the opening and remove it, and then push the ball valves at both ends away from the water pump to remove the water pump and install a new one. Finally, reverse the above process to complete the replacement of the water pump.

[0041] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water pump quick-connect structure that is convenient for disassembly and assembly, characterized in that: The fastener comprises a male quick connector, a female quick connector and a retaining spring, wherein a first interface is provided at one end of the male quick connector with a larger diameter, and a second interface is provided at the other end with a smaller diameter, and a first flange is protruded between the first interface and the second interface; one end of the female quick connector is a third interface, and the third interface is turned outward to form a second flange, and the outer diameter of the second flange is consistent with the first flange; the other end of the female quick connector is a fourth interface, and the fourth interface shrinks inwardly to become smaller in diameter, and the second interface and the third interface are sleeved to the first flange and the second flange and are abutted and fixed by the retaining spring clamp, and the retaining spring is a circular ring with an open end and is provided with a plurality of protruding bending portions, and the two ends of the bending portions are turned up toward the inner side of the retaining spring to form wrinkled edges, and a strip hole is opened at the groove adjacent to the bending portion, and the strip hole extends to the adjacent bending portion, and the extending height is higher than the turned-up height of the first flange, and the width of the strip hole is consistent with the thickness of the flange edge after the first flange and the second flange abut.

2. The water pump quick-connect structure for convenient disassembly and assembly according to claim 1, characterized in that: The second interface is provided with an external thread.

3. The water pump quick-connect structure for convenient disassembly and assembly according to claim 2, characterized in that: The inner ring of the quick-connect female head is provided with an internal thread matching the second interface external thread of the quick-connect male head.

4. The water pump quick-connect structure for convenient assembly and disassembly according to claim 3, characterized in that: The second interface and the third interface are threadedly connected to the first flange and the second flange, and are abutted and fixed by the retaining spring clamp.

5. The water pump quick-connect structure for convenient assembly and disassembly according to claim 1, characterized in that: The outer ring of the second interface of the quick-connect male connector is provided with a sealing groove.

6. The water pump quick-connect structure for convenient assembly and disassembly according to claim 5, characterized in that: An elastic sealing ring is installed in the sealing groove.

7. The water pump quick-connect structure for convenient assembly and disassembly according to claim 1, characterized in that: The first interface of the quick-connect male connector is fixedly connected with a stop ball valve.

8. The water pump quick-connect structure for convenient assembly and disassembly according to claim 1, characterized in that: The short side of the strip-shaped hole is in an arc shape.

9. The water pump quick-connect structure for convenient assembly and disassembly according to claim 1, characterized in that: The number of the bent parts of the retaining spring protrusion is 5.

10. The water pump quick-connect structure for convenient assembly and disassembly according to claim 7, characterized in that: The quick-connect structure is used for quick connection between the water pump and the stop ball valve.

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