Sealing structure of water inlet and outlet of water pump

Abstract

The utility model provides a sealing structure of a water inlet and outlet of a water pump and belongs to the technical field of water pumps. The problem that a water inlet and a water outlet of an existing water pump are poor in sealing effect is solved. According to the sealing structure of the water inlet and the water outlet of the water pump, the water pump comprises the water inlet and the water outlet, inserts used for being connected with a water pipe are arranged on the water inlet and the water outlet, sealing pieces are installed in the inserts, the outer walls of the sealing pieces abut against the inserts in a sealing mode, and the ends of the sealing pieces abut against the inserts, the water inlet and the water outlet in a sealing mode. The sealing structure has the advantage that the sealing effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of water pumps, and relates to a water pump structure, in particular to a sealing structure for the water inlet and outlet of a water pump. Background Technique

[0002] The water inlet and outlet of a water pump are usually connected to a water pipe by threads. In order to prevent water leakage, multiple layers of PTFE tape are wound around the outside of the water pipe before connection, and then connected to the water inlet and outlet of the water pump. However, in actual life, it is found that such a sealing method is very troublesome, the winding process is cumbersome, and over time, there will still be water leakage, affecting the use. Summary of the Invention

[0003] The purpose of the utility model is to provide a sealing structure for the water inlet and outlet of a water pump to solve the above problems existing in the prior art, so that the connection of the outer pipe does not require winding of PTFE tape and has the advantages of good sealing effect.

[0004] The purpose of the utility model can be achieved by the following technical solutions: A sealing structure for the water inlet and outlet of a water pump, the water pump includes a water inlet and a water outlet, and inserts for connecting a water pipe are arranged on the water inlet and the water outlet. It is characterized in that a sealing member is installed in the insert, and the outer wall of the sealing member abuts and seals with the insert, and the end of the sealing member abuts and seals with the insert and the water inlet and outlet.

[0005] In the above-mentioned sealing structure for the water inlet and outlet of a water pump, an interference fit is provided between the sealing member and the water inlet and outlet.

[0006] In the above-mentioned sealing structure for the water inlet and outlet of a water pump, the sealing member has an outwardly convex sealing protrusion, the inner end of the sealing protrusion is pressed against the water inlet and outlet, and the inner and outer walls of the sealing protrusion are respectively pressed against the water inlet and outlet and the wall surface of the insert;

[0007] A first sealing groove for the sealing protrusion to seal against is provided at the water inlet and outlet.

[0008] In the above-mentioned sealing structure for the water inlet and outlet of a water pump, the water inlet and outlet have an outwardly convex protrusion;

[0009] A second sealing groove for the protrusion to be sealed and pressed into is provided on the sealing member.

[0010] Compared with the prior art, the sealing structure for the water inlet and outlet of this water pump has the advantage of improving the sealing effect. Description of the Drawings

[0011] Figure 1 It is a structural diagram of the first embodiment in the sealing structure for the water inlet and outlet of this water pump.

[0012] Figure 2It is the structural diagram of the second embodiment in the sealing structure of the inlet and outlet of this water pump.

[0013] In the figure, 1 is the inlet and outlet; 2 is the insert; 3 is the seal; 4 is the sealing protrusion; 5 is the first sealing groove; 6 is the protruding part; 7 is the second sealing groove. Specific implementation mode

[0014] The following are specific embodiments of the present invention and in combination with the accompanying drawings, the technical solutions of the present invention will be further described, but the present invention is not limited to these embodiments.

[0015] As Figure 1 、 Figure 2 shown, for the sealing structure of the inlet and outlet of this water pump, the water pump includes the inlet and outlet 1, and an insert 2 for connecting a water pipe is arranged on the inlet and outlet 1. A seal 3 is installed in the insert 2, and the outer wall of the seal 3 abuts and seals against the insert 2, and the end of the seal 3 abuts and seals against the insert 2 and the inlet and outlet 1.

[0016] Preferably, there is an interference fit between the seal 3 and the inlet and outlet 1.

[0017] Embodiment 1: The seal 3 has an outwardly convex sealing protrusion 4. The inner end of the sealing protrusion 4 is pressed against the inlet and outlet 1, and the inner and outer walls of the sealing protrusion 4 are respectively pressed against the wall surfaces of the inlet and outlet 1 and the insert 2. A place for the sealing protrusion 4 to seal and abut is provided at the inlet and outlet 1.

[0018] Embodiment 2: The inlet and outlet 1 has an outwardly convex protruding part 6, and a second sealing groove 7 for the protruding part 6 to be sealed and pressed into is provided on the seal 3.

[0019] During the tightening process of the threaded pipe, the seal 3 is pressed inward towards the pump body, so that a pressing seal is formed between the seal 3 and the pump body. The sealing protrusion 4 in Embodiment 1 is pressed and sealed with the pump body, or the protruding part 6 in Embodiment 2 is pressed and sealed with the second sealing groove 7.

[0020] The specific embodiments described herein are only illustrative of the spirit of the present invention. Those skilled in the technical field to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0021] Although terms such as the inlet and outlet 1, the insert 2, the seal 3, the sealing protrusion 4, the first sealing groove 5, the protruding part 6, the second sealing groove 7, etc. are used more in this article, the possibility of using other terms is not excluded. Using these terms is only for more convenient description and explanation of the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A sealing structure for the inlet and outlet of a water pump. The water pump includes an inlet and an outlet (1), and an insert (2) for connecting a water pipe is arranged on the inlet and the outlet (1). It is characterized in that, A seal (3) is installed inside the insert (2), and the outer wall of the seal (3) abuts against the insert (2) for sealing. The end of the seal (3) abuts against the insert (2) and the inlet and outlet (1) for sealing.

2. The sealing structure of the water inlet and outlet of a water pump according to claim 1, characterized in that, An interference fit exists between the seal (3) and the inlet and outlet (1).

3. A sealing structure for the water inlet and outlet of a water pump according to claim 1, characterized in that, The seal (3) has an outwardly protruding sealing projection (4). The inner end of the sealing projection (4) is pressed against the inlet and outlet (1), and the inner and outer walls of the sealing projection (4) are respectively pressed against the inlet and outlet (1) and the wall surface of the insert (2). A first sealing groove (5) for the sealing projection (4) to seal against is provided at the inlet and outlet (1).

4. A sealing structure for the water inlet and outlet of a water pump according to claim 1, characterized in that, The inlet and outlet (1) has an outwardly protruding projection (6). A second sealing groove (7) for the projection (6) to be sealed and pressed into is provided on the seal (3).

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