CN217633069U

CN217633069U - Sealing structure of water pump

Info

Publication number: CN217633069U
Application number: CN202221397670.8U
Authority: CN
Inventors: 王根青
Original assignee: Taizhou Bozhou Machinery Co ltd
Current assignee: Taizhou Bozhou Machinery Co ltd
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2022-10-21
Anticipated expiration: 2032-06-02

Abstract

The utility model belongs to the technical field of water pumps, in particular to a sealing structure of a water pump, which comprises a pump shell and a pipe body, wherein the connecting end of the pipe body is communicated with the water inlet end or the water outlet end of the pump shell; and a sealing gasket is arranged between the sealing bulge and the sealing groove. The utility model discloses with the help of the cooperation structure between sealed arch and the sealed recess for seal ring is wrapped up between pump case and body, thereby keeps apart seal ring and external, has ensured that seal ring possesses better life and sealed effect, simultaneously, also makes the outward appearance of whole water pump can be succinct, pleasing to the eye.

Description

Sealing structure of water pump

The technical field is as follows:

the utility model belongs to the technical field of the water pump, refer in particular to a seal structure of water pump.

Background art:

at present, a basic structure of a water pump includes a pump case, a motor, a water inlet pipe and a water outlet pipe, in which the water inlet pipe and the water outlet pipe are fixed at a water inlet end and a water outlet end of the pump case respectively, and the motor drives a impeller to rotate in the pump case, so that water enters the pump case from the water inlet pipe and is pressurized and discharged from the water outlet pipe. In order to avoid the leakage of water in the fit clearance between the pump case and the water inlet pipe body and between the pump case and the water outlet pipe body, a sealing washer is stacked between the pump case and the water inlet pipe body and between the pump case and the water outlet pipe body, the side wall surface of the sealing washer is exposed outside to influence the appearance of the whole machine, and meanwhile, the sealing washer is extruded and fixed between the pump case and the corresponding pipe body, and the side wall surface of the sealing washer deforms outwards under the extrusion action, so that the sealing washer is easily interfered by external physics to reduce the service life and the sealing effect of the sealing washer.

The invention content is as follows:

the utility model aims at providing a seal structure of water pump, it wraps up seal ring between pump case and body for seal ring can keep apart with the external world, ensures seal ring's life and sealed effect.

The utility model discloses a realize like this:

a sealing structure of a water pump comprises a pump shell and a pipe body, wherein a connecting end of the pipe body is communicated with a water inlet end or a water outlet end of the pump shell;

or the corresponding end surface of the pump shell extends outwards to form a sealing bulge, and the end surface of the connecting end of the pipe body is sunken inwards to form a sealing groove into which the sealing bulge can be inserted;

and a sealing gasket is arranged between the sealing bulge and the sealing groove.

In the above sealing structure of a water pump, the sealing groove is an open groove without an inner ring wall surface, the sealing washer corresponds to the groove bottom surface structure of the sealing groove, and the inner ring edge of the sealing washer extends inwards to the outside of the sealing groove.

In the above-mentioned seal structure of a water pump, the groove depth of the seal groove is 2mm ± 0.2mm, the height of the seal protrusion is 0.5mm ± 0.2mm, and the thickness of the seal washer is 2.2mm ± 0.2mm.

In the above sealing structure of a water pump, the end face of the pump case corresponding to the end face is provided with a screwing hole, the pipe body and the sealing washer are both provided with through holes corresponding to the screwing hole, and the tail end of the fastener sequentially penetrates through the through holes of the pipe body and the sealing washer and is screwed on the screwing hole.

In the sealing structure of the water pump, the connecting end of the pipe body is communicated with the water inlet end of the pump body, the inner ring wall of the sealing washer is connected with the one-way baffle positioned at the inner ring of the sealing washer through the connecting rib, and the one-way baffle can completely cover the connecting port of the pipe body.

In the sealing structure of the water pump, the inner edge of the connecting port of the pipe body extends towards the pump shell to form an extending part, and the length of the extending part gradually increases along the direction away from the connecting rib.

In the sealing structure of the water pump, the outer annular wall of the sealing washer opposite to the connecting rib extends outwards to penetrate out of the pump body and is provided with the positioning block.

Compared with the prior art, the utility model outstanding advantage is:

the utility model discloses with the help of the cooperation structure between sealed arch and the sealed recess for seal ring is wrapped up between pump case and body, thereby keeps apart seal ring and external, has ensured that seal ring possesses better life and sealed effect, simultaneously, also makes the outward appearance of whole water pump can be succinct, pleasing to the eye.

Description of the drawings:

FIG. 1 is an overall perspective view of the present invention;

fig. 2 is an overall sectional view of the present invention;

fig. 3 is an overall exploded view of the present invention.

In the figure: 1. a pump housing; 2. a tube body; 3. sealing the protrusion; 4. sealing the groove; 5. a sealing gasket; 6. screwing holes; 7. a through hole; 8. a one-way baffle; 9. connecting ribs; 10. an extension portion; 11. and (5) positioning the blocks.

The specific implementation mode is as follows:

the invention will now be further described with reference to specific embodiments, with reference to figures 1 to 3:

the utility model provides a seal structure of water pump, is including pump case 1 and body 2 of link and the end intercommunication of intaking or play water end of pump case 1, outwards extend on the link terminal surface of body 2 and be formed with sealed arch 3, inwards cave in on the corresponding terminal surface of pump case 1 and be formed with and supply sealed protruding 3 male sealed recess 4, be provided with seal ring 5 between sealed arch 3 and the sealed recess 4. Promptly in this embodiment, the cooperation structure between sealed arch 3 and the sealed recess 4 for seal ring 5 is wrapped up between pump case 1 and body 2, thereby keeps apart seal ring 5 with the external world, has ensured that seal ring 5 possesses better life and sealed effect, simultaneously, also makes the outward appearance of whole water pump can be succinct, pleasing to the eye.

Of course, the arrangement positions of the sealing protrusion 3 and the sealing groove 4 can be interchanged, that is, the corresponding end surface of the pump shell 1 extends outwards to form the sealing protrusion 3, and the end surface of the connecting end of the pipe body 2 is recessed inwards to form the sealing groove 4 into which the sealing protrusion 3 can be inserted.

And in order to enable the sealing gasket 5 to be tightly attached under the extrusion of the sealing groove 4 and the sealing bulge 3, the sealing performance between the sealing groove 4 and the sealing bulge 3 is further improved, the sealing groove 4 is an open groove without an inner ring wall surface, the sealing gasket 5 corresponds to the groove bottom surface structure of the sealing groove 4, and the inner ring edge of the sealing gasket 5 extends inwards out of the sealing groove 4. That is, the sealing washer 5 can only deform inward under the compression, so that the sealing washer 5 can be tightly attached to the pump housing 1 and the pipe body 2.

Meanwhile, in order to enable the sealing gasket 5 to realize a sealing effect between the sealing groove 4 and the sealing protrusion 3, the depth of the sealing groove 4 is 2mm +/-0.2 mm, the height of the sealing protrusion 3 is 0.5mm +/-0.2 mm, and the thickness of the sealing gasket 5 is 2.2mm +/-0.2 mm.

In addition, in this embodiment, the concrete connection structure between the pump housing 1 and the pipe body 2 is: the end face of the corresponding end of the pump shell 1 is provided with a threaded hole 6, the pipe body 2 and the sealing washer 5 are both provided with through holes 7 corresponding to the threaded hole 6, and the tail end of the fastener sequentially penetrates through the through holes 7 of the pipe body 2 and the sealing washer 5 and is in threaded connection with the threaded hole 6.

Furthermore, when the connection end of the pipe body 2 is communicated with the water inlet end of the pump body, in order to prevent water liquid in the pump case 1 from flowing back into the pipe body 2, the inner ring wall of the sealing washer 5 is connected with a one-way baffle 8 positioned at the inner ring of the sealing washer 5 through a connection rib 9, and the one-way baffle 8 can completely cover the connection port of the pipe body 2, namely the one-way baffle 8 can achieve the purpose of one-way circulation.

In order to effectively cooperate with the one-way baffle 8, an extension part 10 is formed by extending the inner edge of the connecting port of the pipe body 2 towards the pump shell 1, and the length of the extension part 10 gradually increases along the direction away from the connecting rib 9.

Furthermore, in order to facilitate the installation and positioning of the sealing gasket 5, the outer annular wall of the sealing gasket 5 opposite to the connecting rib 9 extends outwards to penetrate out of the pump body and is provided with a positioning block 11.

The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so: all equivalent changes made according to the shape, structure and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a seal structure of water pump, including pump case (1) and body (2) of the end intercommunication is held or goes out to the end of intaking of link and pump case (1), its characterized in that: a sealing bulge (3) is formed on the end face of the connecting end of the pipe body (2) in an outward extending mode, and a sealing groove (4) into which the sealing bulge (3) can be inserted is formed on the end face of the corresponding end of the pump shell (1) in an inward recessed mode;

or the corresponding end surface of the pump shell (1) extends outwards to form a sealing bulge (3), and the end surface of the connecting end of the pipe body (2) is sunken inwards to form a sealing groove (4) into which the sealing bulge (3) can be inserted;

a sealing gasket (5) is arranged between the sealing bulge (3) and the sealing groove (4).

2. A sealing structure of a water pump according to claim 1, characterized in that: the sealing groove (4) is an open groove without an inner ring wall surface, the sealing gasket (5) corresponds to the groove bottom surface structure of the sealing groove (4), and the inner ring edge of the sealing gasket (5) inwards extends out of the sealing groove (4).

3. A sealing structure of a water pump according to claim 1 or 2, characterized in that: the depth of the groove of the sealing groove (4) is 2mm +/-0.2 mm, the height of the sealing bulge (3) is 0.5mm +/-0.2 mm, and the thickness of the sealing gasket (5) is 2.2mm +/-0.2 mm.

4. A sealing structure of a water pump according to claim 1, characterized in that: the pump casing (1) correspond and have seted up spiro union hole (6) on the end face, all seted up on body (2) and seal ring (5) with the corresponding through-hole (7) of spiro union hole (6), the tail end of fastener runs through-hole (7) and the spiro union of body (2) and seal ring (5) in proper order on spiro union hole (6).

5. A sealing structure of a water pump according to claim 1, characterized in that: the connecting end of the pipe body (2) is communicated with the water inlet end of the pump body, the inner ring wall of the sealing washer (5) is connected with a one-way baffle (8) located at the inner ring of the sealing washer (5) through a connecting rib (9), and the one-way baffle (8) can completely cover the connecting port of the pipe body (2).

6. A seal structure of a water pump according to claim 5, characterized in that: the inner edge of the connecting port of the pipe body (2) extends towards the pump shell (1) to form an extending part (10), and the length of the extending part (10) gradually increases along the direction far away from the connecting rib (9).

7. A sealing structure of a water pump according to claim 5 or 6, characterized in that: the outer annular wall of the sealing washer (5) opposite to the connecting rib (9) extends outwards to penetrate out of the pump body and is provided with a positioning block (11).