Self-suction pump body sealing structure

Abstract

The utility model provides a self-priming pump body sealing structure, which belongs to the technical field of self-priming pumps, and is characterized by comprising a first connecting port and a second connecting port, the first connecting port is positioned on a self-priming pump body and is fixedly connected with the self-priming pump body, the second connecting port is movably connected with a water pipe, and the first connecting port is positioned on the self-priming pump body and is fixedly connected with the self-priming pump body. The second connecting port is used for fixing a water pipe and the first connecting port together, the first connecting port and the second connecting port are detachably connected through threads, and a rotation stopping mechanism is arranged at the contact position of the first connecting port and the second connecting port; the rotation stopping mechanism is used for preventing the first connecting port and the second connecting port from rotating relatively when the self-priming pump body works, and the rotation stopping mechanism is a one-way ratchet wheel at the mutual contact position of the first connecting port and the second connecting port; the self-priming pump can solve the problem of water leakage caused by the fact that the connectors at the water inlet of the self-priming pump rotate mutually and are loosened and cannot be sealed, and the fault that the self-priming pump cannot work due to water leakage is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of self-priming pumps, and in particular relates to a self-priming pump body sealing structure. Background Art

[0002] As an outstanding representative of self-priming centrifugal pumps, the self-priming pump stands out among pumps for its compact design, convenient operation, stable operation, simple maintenance procedures, excellent energy efficiency, and long service life. Even more remarkable is its excellent self-priming capability, eliminating the need for a foot valve in the pipeline. Simply ensure the pump is filled with an appropriate amount of priming fluid before starting, and you can easily start and continue to operate efficiently.

[0003] To meet the demands of conveying diverse media, self-priming pumps utilize a variety of materials, such as stainless steel, cast iron, and engineering plastics, to ensure stable operation under a variety of harsh operating conditions. Their operating principle is ingenious and efficient: before startup, the pump casing is pre-filled with clean water (or a certain amount of water is already stored inside the pump casing). As the pump starts, the impeller begins to rotate at high speed, driving the water in the impeller grooves toward the volute. Simultaneously, a vacuum rapidly forms at the pump's inlet, causing the water inlet check valve to automatically open. This allows air in the suction pipe to be smoothly drawn into the pump and pushed to the outer edge through the impeller grooves.

[0004] Self-priming pumps demonstrate remarkable capabilities in liquid lifting, easily lifting liquids from low-lying areas to higher locations. They are widely used in a variety of fields, including agricultural irrigation, urban water supply, and industrial cooling cycles, providing strong support for the transportation of various liquids. Furthermore, in scenarios where increased liquid pressure is required, self-priming pumps can easily meet various pressure requirements by adjusting the speed or optimizing the pump structure, achieving efficient liquid transportation.

[0005] However, it is worth noting that self-priming pumps do produce some vibration during operation. If the vibration amplitude is too large or the duration is too long, it may cause the water pipe connector at the water inlet to loosen due to friction, thus affecting the normal operation of the self-priming pump. Utility Model Content

[0006] In view of this, the utility model provides a self-priming pump body sealing structure, which can solve the problem of water leakage caused by the joints at the water inlet of the self-priming pump rotating relative to each other and becoming loose and unable to seal, thereby avoiding the failure of the self-priming pump to fail to work due to water leakage.

[0007] The utility model is achieved in this way:

[0008] The utility model provides a self-priming pump body sealing structure, which includes a first connecting port and a second connecting port. The first connecting port is located on the self-priming pump body and is fixedly connected to the self-priming pump body. The second connecting port is movably connected to a water pipe and is used to fix the water pipe and the first connecting port together. The first connecting port and the second connecting port are detachably connected through threads. A rotation-stop mechanism is provided at the contact point between the first connecting port and the second connecting port, which is used to prevent the first connecting port and the second connecting port from rotating relative to each other when the self-priming pump body is working.

[0009] On the basis of the above technical solution, the self-priming pump body sealing structure of the present invention can also be improved as follows:

[0010] In which, the anti-rotation mechanism includes a first anti-rotation disc and a second anti-rotation disc, the first anti-rotation disc is an annular protrusion located on the first connecting port, and the second anti-rotation disc is an annular protrusion on the second connecting port. The first anti-rotation disc and the first connecting port are integrally formed, and the second anti-rotation disc and the second connecting port are integrally formed. After the first connecting port and the second connecting port are connected, the first anti-rotation disc and the second anti-rotation disc contact each other, and a one-way ratchet is provided at the contact point between the first anti-rotation disc and the second anti-rotation disc.

[0011] Furthermore, the direction of the one-way ratchet is the same as the direction of the threads of the first connecting port and the second connecting port.

[0012] The beneficial effect of adopting the above-mentioned improvement scheme is that by providing a one-way ratchet, the vibration of the self-priming pump during operation is prevented from causing the first connecting port and the second connecting port to rotate relative to each other and become loose.

[0013] Furthermore, the first anti-rotation disk and the second anti-rotation disk are provided with through holes, and the through holes on the first anti-rotation disk and the second anti-rotation disk correspond to each other.

[0014] Furthermore, a first color paint is provided on the surface of the first anti-rotation disk and the second anti-rotation disk, and a second color paint is provided on the through holes of the first anti-rotation disk and the second anti-rotation disk. The first color paint is different from the second color paint.

[0015] Furthermore, the colors of the first color paint and the second color paint are contrasting colors.

[0016] The beneficial effect of adopting the above-mentioned improvement scheme is: by setting the colors of the first color paint and the second color paint to contrast with each other, it is convenient to display the contrasting colors when the first connecting port and the second connecting port are rotated relative to each other, thereby indicating whether the first connecting port and the second connecting port are rotated relative to each other.

[0017] Furthermore, a water pipe fixing piece is provided at one end of the second connection port away from the first connection port, and the water pipe fixing piece is used to further fix the water pipe.

[0018] Furthermore, the surface of the second connecting port and the inner wall of the water pipe fixing member are provided with mutually adapted threads.

[0019] Furthermore, the radius of the surface of the second connection port away from the end of the second anti-rotation disk is smaller than the radius of the second connection port close to the end of the second connection port.

[0020] The beneficial effect of adopting the above-mentioned improvement scheme is: by setting the axial radius of the outer side wall of the second connection port to be different, the sealing degree of the contact part between the second connection port and the water pipe gradually increases along the direction approaching the second anti-rotation disk, thereby increasing the contact area between the second connection port and the water pipe.

[0021] Furthermore, a rubber gasket is provided at the contact point between the first connection port and the second connection port.

[0022] Compared with the prior art, the self-priming pump body sealing structure provided by the present invention has the following beneficial effects:

[0023] The threaded detachable connection between the first and second connection ports, as well as the anti-rotation mechanism, particularly the one-way ratchet design, effectively prevents the connection from loosening due to vibration during operation of the self-priming pump, thereby improving the sealing and overall connection stability.

[0024] Through holes are provided on the first anti-rotation disk and the second anti-rotation disk, and a first color paint and a second color paint of obvious color contrast are applied. When the first connection port and the second connection port rotate relative to each other, the color contrast change at the through hole will be clearly displayed, which is convenient for the user to promptly discover and take measures to ensure the firmness of the connection;

[0025] A water pipe fixing piece is added to the end of the second connection port away from the first connection port, and the water pipe is further fixed by a threaded connection, which not only increases the stability of the water pipe, but also improves the safety and durability of the entire system;

[0026] The design of the outer wall of the second connection port gradually improves the sealing degree of the contact area with the water pipe as it approaches the second anti-rotation disk. This design increases the contact area, improves the sealing effect, and reduces the possibility of leakage;

[0027] A rubber gasket is added at the contact point between the first connecting port and the second connecting port to further enhance the sealing performance, effectively prevent medium leakage, and improve work efficiency and safety.

[0028] In summary, this utility model significantly improves the structural stability and sealing performance of the self-priming pump body sealing structure through a series of innovative designs, while facilitating user monitoring and maintenance, providing a strong guarantee for the safe and efficient operation of pump equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0030] Figure 1 It is a schematic diagram of a self-priming pump body sealing structure;

[0031] Figure 2 An exploded diagram of a self-priming pump body sealing structure

[0032] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0033] 1. First connection port; 11. First anti-rotation disk; 2. Second connection port; 21. Water pipe fixing member; 22. Second anti-rotation disk. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0035] like Figure 1 , Figure 2 As shown, it is a first embodiment of a self-priming pump body sealing structure provided by the utility model. In this embodiment, it includes a first connecting port 1 and a second connecting port 2. The first connecting port 1 is located on the self-priming pump body and is fixedly connected to the self-priming pump body. The second connecting port 2 is movably connected to the water pipe and is used to fix the water pipe and the first connecting port 1 together. The first connecting port 1 and the second connecting port 2 are detachably connected by threads. A rotation-stop mechanism is provided at the contact point between the first connecting port 1 and the second connecting port 2 to prevent the first connecting port 1 and the second connecting port 2 from rotating relative to each other when the self-priming pump body is working.

[0036] Among them, in the above technical scheme, the anti-rotation mechanism includes a first anti-rotation disk 11 and a second anti-rotation disk 22. The first anti-rotation disk 11 is an annular protrusion located on the first connecting port 1, and the second anti-rotation disk 22 is an annular protrusion on the second connecting port 2. The first anti-rotation disk 11 is integrally formed with the first connecting port 1, and the second anti-rotation disk 22 is integrally formed with the second connecting port 2. After the first connecting port 1 and the second connecting port 2 are connected, the first anti-rotation disk 11 and the second anti-rotation disk 22 contact each other, and a one-way ratchet is provided at the contact point between the first anti-rotation disk 11 and the second anti-rotation disk 22.

[0037] Furthermore, in the above technical solution, the direction of the one-way ratchet is the same as the direction of the threads of the first connecting port 1 and the second connecting port 2 .

[0038] Furthermore, in the above technical solution, a water pipe fixing part 21 is provided at one end of the second connecting port 2 away from the first connecting port 1 , and the water pipe fixing part 21 is used to further fix the water pipe.

[0039] Furthermore, in the above technical solution, the surface of the second connecting port 2 and the inner wall of the water pipe fixing member 21 are provided with mutually adapted threads.

[0040] Furthermore, in the above technical solution, the radius of the surface of the second connection port 2 away from the second anti-rotation disk 22 is smaller than the radius of the second connection port 2 near the second connection port 2 .

[0041] When in use, fix the water pipe to the outer wall of the second connecting port 2, tighten the water pipe fixing piece 21 on the surface of the water pipe, and wrap a circle of screws around the side of the water pipe fixing piece 21 away from the second anti-rotation disk 22 to prevent the water pipe from loosening.

[0042] Furthermore, in the above technical solution, a rubber gasket is provided at the contact point between the first connection port 1 and the second connection port 2 .

[0043] like Figure 1 As shown, it is a second embodiment of a self-priming pump body sealing structure provided by the utility model. In this embodiment, it includes a first connecting port 1 and a second connecting port 2. The first connecting port 1 is located on the self-priming pump body and is fixedly connected to the self-priming pump body. The second connecting port 2 is movably connected to the water pipe and is used to fix the water pipe and the first connecting port 1 together. The first connecting port 1 and the second connecting port 2 are detachably connected by threads. A rotation-stop mechanism is provided at the contact point between the first connecting port 1 and the second connecting port 2 to prevent the first connecting port 1 and the second connecting port 2 from rotating relative to each other when the self-priming pump body is working.

[0044] Among them, in the above technical scheme, the anti-rotation mechanism includes a first anti-rotation disk 11 and a second anti-rotation disk 22. The first anti-rotation disk 11 is an annular protrusion located on the first connecting port 1, and the second anti-rotation disk 22 is an annular protrusion on the second connecting port 2. The first anti-rotation disk 11 is integrally formed with the first connecting port 1, and the second anti-rotation disk 22 is integrally formed with the second connecting port 2. After the first connecting port 1 and the second connecting port 2 are connected, the first anti-rotation disk 11 and the second anti-rotation disk 22 contact each other, and a one-way ratchet is provided at the contact point between the first anti-rotation disk 11 and the second anti-rotation disk 22.

[0045] Furthermore, in the above technical solution, the direction of the one-way ratchet is the same as the direction of the threads of the first connecting port 1 and the second connecting port 2 .

[0046] Furthermore, in the above technical solution, through holes are provided on the first anti-rotation disk 11 and the second anti-rotation disk 22, and the through holes on the first anti-rotation disk 11 and the second anti-rotation disk 22 correspond to each other.

[0047] When in use, install the water pipe on the second connecting port 2, fix the first connecting port 1 and the second connecting port 2 together, the through holes on the first anti-rotation disk 11 and the second anti-rotation disk 22 correspond to each other, and fix the bolts on the through holes to prevent the first connecting port 1 and the second connecting port 2 from rotating relative to each other.

[0048] Furthermore, in the above technical solution, a water pipe fixing part 21 is provided at one end of the second connecting port 2 away from the first connecting port 1 , and the water pipe fixing part 21 is used to further fix the water pipe.

[0049] Furthermore, in the above technical solution, the surface of the second connecting port 2 and the inner wall of the water pipe fixing member 21 are provided with mutually adapted threads.

[0050] Furthermore, in the above technical solution, the radius of the surface of the second connection port 2 away from the second anti-rotation disk 22 is smaller than the radius of the second connection port 2 near the second connection port 2 .

[0051] When in use, fix the water pipe to the outer wall of the second connecting port 2, tighten the water pipe fixing piece 21 on the surface of the water pipe, and wrap a circle of screws around the side of the water pipe fixing piece 21 away from the second anti-rotation disk 22 to prevent the water pipe from loosening.

[0052] Furthermore, in the above technical solution, a rubber gasket is provided at the contact point between the first connection port 1 and the second connection port 2 .

[0053] like Figure 1As shown, it is a third embodiment of a self-priming pump body sealing structure provided by the utility model. In this embodiment, it includes a first connecting port 1 and a second connecting port 2. The first connecting port 1 is located on the self-priming pump body and is fixedly connected to the self-priming pump body. The second connecting port 2 is movably connected to the water pipe and is used to fix the water pipe and the first connecting port 1 together. The first connecting port 1 and the second connecting port 2 are detachably connected by threads. A rotation-stop mechanism is provided at the contact point between the first connecting port 1 and the second connecting port 2 to prevent the first connecting port 1 and the second connecting port 2 from rotating relative to each other when the self-priming pump body is working.

[0054] Among them, in the above technical scheme, the anti-rotation mechanism includes a first anti-rotation disk 11 and a second anti-rotation disk 22. The first anti-rotation disk 11 is an annular protrusion located on the first connecting port 1, and the second anti-rotation disk 22 is an annular protrusion on the second connecting port 2. The first anti-rotation disk 11 is integrally formed with the first connecting port 1, and the second anti-rotation disk 22 is integrally formed with the second connecting port 2. After the first connecting port 1 and the second connecting port 2 are connected, the first anti-rotation disk 11 and the second anti-rotation disk 22 contact each other, and a one-way ratchet is provided at the contact point between the first anti-rotation disk 11 and the second anti-rotation disk 22.

[0055] Furthermore, in the above technical solution, the direction of the one-way ratchet is the same as the direction of the threads of the first connecting port 1 and the second connecting port 2 .

[0056] Furthermore, in the above technical solution, a first color paint is provided on the surface of the first anti-rotation disk 11 and the second anti-rotation disk 22, and a second color paint is provided on the through holes of the first anti-rotation disk 11 and the second anti-rotation disk 22, and the first color paint and the second color paint are different in color.

[0057] Furthermore, in the above technical solution, the colors of the first color paint and the second color paint are contrasting colors.

[0058] When in use, install the water pipe on the second connecting port 2, fix the first connecting port 1 and the second connecting port 2 together, and the through holes on the first anti-rotation disk 11 and the second anti-rotation disk 22 correspond to each other. If the first connecting port 1 and the second connecting port 2 rotate relative to each other, the colors on the first anti-rotation disk 11 and the second anti-rotation disk 22 can be observed from the inner wall of the through hole. Since the first color paint and the second color paint are contrasting colors, obvious color contrast can be observed from inside the through hole.

[0059] Furthermore, in the above technical solution, a water pipe fixing part 21 is provided at one end of the second connecting port 2 away from the first connecting port 1 , and the water pipe fixing part 21 is used to further fix the water pipe.

[0060] Furthermore, in the above technical solution, the surface of the second connecting port 2 and the inner wall of the water pipe fixing member 21 are provided with mutually adapted threads.

[0061] Furthermore, in the above technical solution, the radius of the surface of the second connection port 2 away from the second anti-rotation disk 22 is smaller than the radius of the second connection port 2 near the second connection port 2 .

[0062] When in use, fix the water pipe to the outer wall of the second connecting port 2, tighten the water pipe fixing piece 21 on the surface of the water pipe, and wrap a circle of screws around the side of the water pipe fixing piece 21 away from the second anti-rotation disk 22 to prevent the water pipe from loosening.

[0063] Furthermore, in the above technical solution, a rubber gasket is provided at the contact point between the first connection port 1 and the second connection port 2 .

[0064] Specifically, the principle of the present invention is: during installation, the water pipe fixing part 21 is put on the water pipe, the second connecting port 2 is inserted into the inner wall of the water pipe, the outer wall of the second connecting port 2 is tightly connected with the inner wall of the first connecting port 1, the water pipe fixing part 21 is tightened with the second connecting port 2, and the second connecting port 2 is tightened with the first connecting port 1 through a thread, so that the second anti-rotation disk 22 is in contact with the water pipe fixing part 21, and the anti-rotation mechanism is used to determine whether the second connecting port 2 and the first connecting port 1 are tightened.

Claims

1. A self-priming pump body sealing structure, characterized in that: The invention comprises a first connection port (1) and a second connection port (2), wherein the first connection port (1) is located on the self-priming pump body and is fixedly connected to the self-priming pump body, and the second connection port (2) is movably connected to the water pipe and is used to fix the water pipe and the first connection port (1) together, and the first connection port (1) and the second connection port (2) are detachably connected by a thread, and a rotation-stop mechanism is provided at the contact point between the first connection port (1) and the second connection port (2) to prevent the first connection port (1) and the second connection port (2) from rotating relative to each other when the self-priming pump body is working.

2. A self-priming pump body sealing structure according to claim 1, characterized in that: The anti-rotation mechanism includes a first anti-rotation disc (11) and a second anti-rotation disc (22), wherein the first anti-rotation disc (11) is an annular protrusion located on the first connecting port (1), and the second anti-rotation disc (22) is an annular protrusion on the second connecting port (2), the first anti-rotation disc (11) and the first connecting port (1) are integrally formed, and the second anti-rotation disc (22) and the second connecting port (2) are integrally formed, and after the first connecting port (1) and the second connecting port (2) are connected, the first anti-rotation disc (11) and the second anti-rotation disc (22) contact each other, and a one-way ratchet is provided at the contact point between the first anti-rotation disc (11) and the second anti-rotation disc (22).

3. A self-priming pump body sealing structure according to claim 2, characterized in that: The direction of the one-way ratchet is the same as the direction of the threads of the first connecting port (1) and the second connecting port (2).

4. A self-priming pump body sealing structure according to claim 3, characterized in that: The first anti-rotation disc (11) and the second anti-rotation disc (22) are provided with through holes, and the through holes on the first anti-rotation disc (11) and the second anti-rotation disc (22) correspond to each other.

5. A self-priming pump body sealing structure according to claim 4, characterized in that: A first color paint is provided on the surface of the first anti-rotation disk (11) and the second anti-rotation disk (22), and a second color paint is provided on the through holes of the first anti-rotation disk (11) and the second anti-rotation disk (22), and the first color paint is different from the second color paint.

6. A self-priming pump body sealing structure according to claim 5, characterized in that: The first color paint and the second color paint are in contrasting colors.

7. A self-priming pump body sealing structure according to claim 6, characterized in that: A water pipe fixing part (21) is provided at one end of the second connecting port (2) away from the first connecting port (1), and the water pipe fixing part (21) is used to further fix the water pipe.

8. A self-priming pump body sealing structure according to claim 7, characterized in that: The surface of the second connecting port (2) and the inner side wall of the water pipe fixing member (21) are provided with mutually adapted threads.

9. A self-priming pump body sealing structure according to claim 8, characterized in that: The radius of the surface of the second connection port (2) away from the end of the second anti-rotation disk (22) is smaller than the radius of the end of the second connection port (2) close to the second connection port (2).

10. A self-priming pump body sealing structure according to claim 9, characterized in that: A rubber gasket is provided at the contact point between the first connecting port (1) and the second connecting port (2).

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