Sealing structure at pump of water supply and drainage pipeline

Abstract

The utility model relates to the technical field of sealing structures at pumps of water supply and drainage pipelines, in particular to a sealing structure at a pump of a water supply and drainage pipeline, which improves the sealing performance at the pump of the water supply and drainage pipeline and reduces the probability that water leaks from joints. The water supply and drainage pipeline sealing device comprises a pump body, the pump body is connected with a first connecting structure, the first connecting structure is connected with a second connecting structure through a plurality of threaded rods and nuts, and the first connecting structure comprises a water inlet pipe. A first flange plate is fixedly connected to the water inlet pipe, a plurality of first through holes are formed in the first flange plate, and a first fixing groove is formed in one side of the first flange plate.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing structures at pumps of water supply and drainage pipelines, in particular to a sealing structure at pumps of water supply and drainage pipelines. Background Art

[0002] As we all know, water supply and drainage pipes are generally used for urban water supply systems, drainage systems and other systems. When using water supply and drainage pipes, water pumps and other related equipment are required. When such equipment is in use, it needs to be sealed and connected with the corresponding water supply and drainage pipes. At present, they are usually fixed and installed by multiple bolts during installation, and single or multi-layer sealing gaskets are placed at the connection for sealing. Although the sealing gasket has a sealing effect, it is bound to cause leakage and other problems due to wear or aging after long-term use, and the sealing structure relying on the locking rubber gasket is relatively simple. For this reason, we propose a sealing structure at the pump of the water supply and drainage pipe. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the shortcomings of the prior art, the utility model provides a sealing structure at the pump of a water supply and drainage pipe, which improves the sealing performance of the pump of the water supply and drainage pipe and reduces the probability of water leakage from the joints. Multiple sealing structures cooperate with each other, so that the sealing effect of the pump of the water supply and drainage pipe is greatly improved, which can effectively solve the problems in the background technology.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealing structure at a pump of a water supply and drainage pipeline, comprising a pump body, a first connecting structure connected to the pump body, a second connecting structure connected to the first connecting structure through a plurality of threaded rods and nuts, the first connecting structure comprising an inlet pipe, a first flange fixedly connected to the water inlet pipe, a plurality of first through holes being provided on the first flange, a first fixing groove being provided on one side of the first flange, a second fixing groove being provided on one side of the first flange, a first connecting pipe connected to the water inlet pipe, a first circular expansion pipe being connected to the first connecting pipe, a second connecting pipe being connected to the first circular expansion pipe, an air release valve being installed on the second connecting pipe, a circular gasket being installed on the second fixing groove, the second connecting structure comprising an outlet pipe, a second flange fixedly connected to the water outlet pipe, a plurality of second through holes being provided on the second flange, a third fixing groove being provided on one side of the second flange, and a fourth fixing groove being provided on the second flange.

[0007] Furthermore, the circular expansion tube is made of rubber material, the first connecting tube is made of rubber material, the first fixing groove and the third fixing groove are matched with the circular expansion tube, and the first connecting tube is connected to the first flange through sliding.

[0008] Furthermore, the second connecting pipe is made of rubber, and the second connecting pipe is connected to the first flange through sliding.

[0009] Furthermore, the second fixing groove and the fourth fixing groove both match the circular pad.

[0010] Furthermore, each threaded rod passes through each first through hole and each second through hole correspondingly.

[0011] (III) Beneficial effects

[0012] Compared with the prior art, the utility model provides a sealing structure at the pump of a water supply and drainage pipeline, which has the following beneficial effects:

[0013] The sealing structure at the pump of the water supply and drainage pipeline performs primary waterproofing on the connection between the first flange and the second flange by installing a circular gasket between the second fixed groove and the fourth fixed groove. When the water pump is started, water enters the circular expansion tube through the first connecting pipe, causing the circular expansion tube to expand, thereby increasing the sealing again, thereby achieving multiple waterproofing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the isometric structure of the utility model;

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the first connecting structure in the utility model;

[0016] Figure 3 It is a schematic diagram of the three-dimensional structure of the second connecting structure in the utility model.

[0017] In the figure: 1. pump body; 2. water inlet pipe; 3. first flange; 4. first through hole; 5. first fixing groove; 6. second fixing groove; 7. first connecting pipe; 8. circular expansion pipe; 9. circular pad; 10. second connecting pipe; 11. air release valve; 12. water outlet pipe; 13. second flange; 14. second through hole; 15. third fixing groove; 16. fourth fixing groove; 17. threaded rod; 18. nut. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-3The utility model discloses a sealing structure for a pump of a water supply and drainage pipeline, comprising a pump body 1, a first connecting structure connected to the pump body 1, a second connecting structure connected to the first connecting structure via a plurality of threaded rods 17 and nuts 18, the first connecting structure comprising an inlet pipe 2, a first flange 3 fixedly connected to the inlet pipe 2, a plurality of first through holes 4 arranged on the first flange 3, a first fixing groove 5 arranged on one side of the first flange 3, a second fixing groove 6 arranged on one side of the first flange 3, a first connecting pipe 7 connected to the water inlet pipe 2, a first circular expansion pipe 8 connected to the first connecting pipe 7, a second connecting pipe 10 connected to the first circular expansion pipe 8, the second connecting pipe 10 is made of rubber, and the second connecting pipe 10 is connected to the first flange 3 by sliding, A vent valve 11 is installed on the second connecting pipe 10, a circular pad 9 is installed on the second fixed groove 6, the second connecting structure includes a water outlet pipe 12, a second flange 13 is fixedly connected to the water outlet pipe 12, a plurality of second through holes 14 are arranged on the second flange 13, a third fixed groove 15 is arranged on one side of the second flange 13, the circular expansion tube 8 is made of rubber material, the first connecting tube 7 is made of rubber material, the first fixed groove 5 and the third fixed groove 15 are matched with the circular expansion tube 8, the first connecting tube 7 is connected with the first flange 3 by sliding, a fourth fixed groove 16 is arranged on the second flange 13, the second fixed groove 6 and the fourth fixed groove 16 are matched with the circular pad 9, and each threaded rod 17 passes through each first through hole 4 and each second through hole 14 correspondingly.

[0020] To sum up, the sealing structure at the pump of the water supply and drainage pipeline, when in use, starts the water pump, and water flows into the water outlet pipe 12 through the water inlet pipe 2. At the same time, part of the water passes through the first connecting pipe 7 and enters the circular expansion tube 8. Under the action of water pressure, the circular expansion tube 8 expands to seal the first fixed groove 5 and the third fixed groove 15, and the circular gasket 9 seals the first flange 3 and the second flange 13, so that the multi-layer waterproof effect can be achieved.

[0021] Although 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 sealing structure for a pump of a water supply and drainage pipeline, comprising a pump body (1), characterized in that: The pump body (1) is connected to a first connection structure, the first connection structure is connected to a second connection structure via a plurality of threaded rods (17) and nuts (18), the first connection structure comprises a water inlet pipe (2), the water inlet pipe (2) is fixedly connected to a first flange (3), the first flange (3) is provided with a plurality of first through holes (4), a first fixing groove (5) is provided on one side of the first flange (3), a second fixing groove (6) is provided on one side of the first flange (3), a first connecting pipe (7) is provided and connected to the water inlet pipe (2), the first connecting pipe (7) is provided with a first connecting pipe (7) A first circular expansion tube (8) is connected, a second connecting tube (10) is connected to the first circular expansion tube (8), a venting valve (11) is installed on the second connecting tube (10), a circular pad (9) is installed on the second fixing groove (6), the second connecting structure comprises a water outlet pipe (12), a second flange (13) is fixedly connected to the water outlet pipe (12), a plurality of second through holes (14) are arranged on the second flange (13), a third fixing groove (15) is arranged on one side of the second flange (13), and a fourth fixing groove (16) is arranged on the second flange (13).

2. The sealing structure at the pump of a water supply and drainage pipeline according to claim 1, characterized in that: The circular expansion tube (8) is made of rubber, the first connecting tube (7) is made of rubber, the first fixing groove (5) and the third fixing groove (15) are both matched with the circular expansion tube (8), and the first connecting tube (7) is connected to the first flange (3) by sliding.

3. The sealing structure at the pump of a water supply and drainage pipeline according to claim 1, characterized in that: The second connecting pipe (10) is made of rubber material, and the second connecting pipe (10) is connected to the first flange (3) by sliding.

4. The sealing structure at the pump of a water supply and drainage pipeline according to claim 1, characterized in that: The second fixing groove (6) and the fourth fixing groove (16) both match the circular pad (9).

5. The sealing structure at the pump of a water supply and drainage pipeline according to claim 1, characterized in that: Each of the threaded rods (17) passes through each of the first through holes (4) and each of the second through holes (14) correspondingly.

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