CN219101686U - High-sealing sewage pump - Google Patents
High-sealing sewage pump Download PDFInfo
- Publication number
- CN219101686U CN219101686U CN202223360295.2U CN202223360295U CN219101686U CN 219101686 U CN219101686 U CN 219101686U CN 202223360295 U CN202223360295 U CN 202223360295U CN 219101686 U CN219101686 U CN 219101686U
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- pump shaft
- sealing
- pump
- cavity
- impeller
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- 238000007789 sealing Methods 0.000 title claims abstract description 88
- 239000010865 sewage Substances 0.000 title claims description 12
- 238000010030 laminating Methods 0.000 claims abstract description 7
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 239000004576 sand Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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Abstract
The utility model provides a high seal dredge pump, includes motor, pump body and impeller, form the cavity in the pump body, the impeller sets up in the cavity, the pump body top sets up the connecting seat, the motor sets up on the connecting seat, set up the pump shaft in the cavity, the one end and the motor coupling of pump shaft, the other end of pump shaft passes the connecting seat and stretches into the cavity and be connected with the impeller, set up first seal structure between pump shaft and the impeller, set up second seal structure between pump shaft and the connecting seat, set up the rotation spread groove on the impeller, first seal structure sets up the one end that is close to the notch in rotating the spread groove, first seal structure sets up and has and compress tightly sealing and laminating sealing, the pump shaft corresponds first seal structure and sets up the pressure part, after the pump shaft stretches into the rotation spread groove the pressure sealing compresses tightly sealing of first seal structure and drives the laminating sealing and remove towards the pump shaft surface.
Description
Technical Field
The utility model relates to the technical field of sewage pumps, in particular to a high-sealing sewage pump.
Background
The sewage pump is widely applied to municipal sewage (waste water) transportation, and because domestic sewage and industrial wastewater components are complicated, contains a large amount of sand grains with different densities and different specifications, can influence the safe use of mechanical seal, and the sewage pump is vertically installed in the pond, and during operation, suspended sand grains can enter the cavity where mechanical seal is located along with rivers, influence the sealing effect of mechanical seal pair to make liquid get into the motor cavity, cause the motor damage.
Disclosure of Invention
In view of this, the present utility model provides a high seal drain pump.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a high seal dredge pump, includes motor, pump body and impeller, form the cavity in the pump body, the impeller sets up in the cavity, the pump body top sets up the connecting seat, the motor sets up on the connecting seat, set up the pump shaft in the cavity, the one end and the motor coupling of pump shaft, the other end of pump shaft passes the connecting seat and stretches into the cavity and be connected with the impeller, set up first seal structure between pump shaft and the impeller, set up second seal structure between pump shaft and the connecting seat, set up the rotation spread groove on the impeller, first seal structure sets up the one end that is close to the notch in rotating the spread groove, first seal structure sets up and has and compress tightly sealing and laminating sealing, the pump shaft corresponds first seal structure and sets up the pressure part, after the pump shaft stretches into the rotation spread groove the pressure sealing compresses tightly sealing of first seal structure and drives the laminating sealing and remove towards the pump shaft surface.
Preferably, the rotating connecting groove is provided with a step structure on the inner wall of one side close to the notch, the step structure comprises an upper step surface and a lower step surface, the first sealing structure is a sealing ring formed on the upper step surface, an upper sealing ring groove and a lower sealing ring groove are formed between the upper step surface and the lower step surface and the pump shaft respectively, and one end of a compression sealing part of the first sealing structure extends to the upper part of the lower sealing ring groove.
Preferably, a connecting cavity is formed in the connecting seat, one end of the pump shaft penetrates through the connecting cavity and stretches into the rotating connecting groove to be connected with the impeller, and the second sealing structure comprises an inner sealing unit formed in the connecting cavity and a lower sealing unit formed at the bottom end of the connecting seat.
Preferably, the top cavity wall and the bottom cavity wall of the connecting cavity are both protruded to form corresponding positioning grooves, the pump shaft penetrates through the positioning grooves at the top and the positioning grooves at the bottom of the connecting cavity, the inner sealing unit is arranged in the positioning grooves, and the inner sealing unit is a sealing sleeve sleeved on the part of the pump shaft located in the connecting cavity.
Preferably, the bottom of the connecting seat is provided with a connecting groove, the lower sealing unit is arranged in the connecting groove, the lower sealing unit is a rubber sealing ring formed in the connecting groove, the pump shaft penetrates through the connecting groove, and the lower sealing unit is sleeved on the part of the pump shaft, which is located in the connecting groove.
Preferably, a limiting groove is formed in the inner wall of the bottom in the cavity, and one end of the impeller is rotatably inserted into the limiting groove.
The utility model has the beneficial effects that: according to the utility model, the first sealing structure is arranged between the pump shaft and the impeller, and the compression sealing part of the first sealing structure is gradually attached to the surface of the pump shaft under the compression drive of the compression part of the pump shaft, so that the sealing between the pump shaft and the impeller is realized.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is an enlarged view at a in fig. 1.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model will be further described with reference to the drawings.
The utility model provides the following technical scheme:
as shown in fig. 1-2, the utility model discloses a high-sealing sewage pump, which comprises a motor 1, a pump body 2 and an impeller 3, wherein a cavity 4 is formed in the pump body 2, the impeller 3 is arranged in the cavity 4, a connecting seat 5 is arranged at the top end of the pump body 2, the motor 1 is arranged on the connecting seat 5, a pump shaft 6 is arranged in the cavity 4, one end of the pump shaft 6 is connected with the motor 1, the other end of the pump shaft 6 penetrates through the connecting seat 5 to extend into the cavity 4 and is connected with the impeller 3, a first sealing structure 23 is arranged between the pump shaft 6 and the impeller 3, a second sealing structure 7 is arranged between the pump shaft 6 and the connecting seat 5, a rotating connecting groove 8 is formed in the impeller 3, the first sealing structure 23 is arranged at one end, close to the notch, of the pump shaft 6 is provided with a pressing sealing part 9 and a bonding sealing part 10, the pressing part 11 presses the pressing part 9 of the first sealing structure 23 after the pump shaft 6 extends into the rotating connecting groove 8, and drives the pressing part 10 of the pump shaft 6 to move towards the sealing surface 6. Specifically, in this design, through setting up first seal structure between pump shaft and impeller, first seal structure's compress tightly sealing portion and compress tightly under the pressure of the compression portion of pump shaft and drive, laminate to the surface of pump shaft gradually to realize with the seal between the pump shaft.
Specifically, in this embodiment, the first seal structure is the elastic sealing washer that has the deformation function, compresses tightly sealing portion and has an inclined plane, and the incline direction on inclined plane is for compressing tightly sealing portion top towards pump shaft bottom center slope setting, can contact the inclined plane gradually at compressing tightly the in-process of pushing down so that the inclined plane is driven towards the surface of pump shaft laminating gradually to realize sealedly.
Further, a step structure 12 is arranged on the inner wall of one side of the rotary connecting groove 8, which is close to the notch, the step structure 12 comprises an upper step surface 13 and a lower step surface 14, the first sealing structure 23 is a sealing ring formed on the upper step surface 13, an upper sealing ring groove 15 and a lower sealing ring groove 16 are formed between the upper step surface 13 and the lower step surface 14 and the pump shaft 6 respectively, and one end of a compression sealing part 9 of the first sealing structure 23 extends to the upper part of the lower sealing ring groove 16.
Further, a connecting cavity 17 is formed in the connecting seat 5, one end of the pump shaft 6 passes through the connecting cavity 17 and extends into the rotating connecting groove 8 to be connected with the impeller 3, and the second sealing structure 7 comprises an inner sealing unit 18 formed in the connecting cavity 17 and a lower sealing unit 19 formed at the bottom end of the connecting seat 5.
Further, the top cavity wall and the bottom cavity wall of the connecting cavity 17 are both protruded to form corresponding positioning grooves 20, the pump shaft 6 penetrates through the positioning grooves 20 at the top and the positioning grooves 20 at the bottom of the connecting cavity 17, the inner sealing unit 18 is arranged in the positioning grooves 20, and the inner sealing unit 18 is a sealing sleeve sleeved on the part of the pump shaft 6 located in the connecting cavity 17.
Further, the bottom end of the connecting seat 5 is provided with a connecting groove 21, the lower sealing unit 19 is arranged in the connecting groove 21, the lower sealing unit 19 is a rubber sealing ring formed in the connecting groove 21, the pump shaft 6 penetrates through the connecting groove 21, and the lower sealing unit 19 is sleeved on the part of the pump shaft 6 located in the connecting groove 21.
Further, a limiting groove 22 is formed in the inner wall of the bottom in the chamber 4, and one end of the impeller 3 rotatably extends into the limiting groove 22.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The utility model provides a high sealed dredge pump, includes motor, pump body and impeller, form the cavity in the pump body, the impeller sets up in the cavity, pump body top sets up the connecting seat, the motor sets up on the connecting seat, set up the pump shaft in the cavity, the one end and the motor of pump shaft are connected, the other end of pump shaft passes the connecting seat and stretches into the cavity and be connected with the impeller, its characterized in that: the pump comprises a pump shaft, a connecting seat, a first sealing structure, a second sealing structure, a rotating connecting groove, a pressing sealing part and a laminating sealing part, wherein the first sealing structure is arranged between the pump shaft and the impeller, the second sealing structure is arranged between the pump shaft and the connecting seat, the impeller is provided with the rotating connecting groove, the first sealing structure is arranged at one end, close to a notch, in the rotating connecting groove, the pressing sealing part is pressed by the pressing part, and the laminating sealing part is driven to move towards the surface of the pump shaft.
2. The high seal-off sewage pump of claim 1, wherein: the inner wall of one side of the rotary connecting groove, which is close to the notch, is provided with a step structure, the step structure comprises an upper step surface and a lower step surface, the first sealing structure is a sealing ring formed on the upper step surface, an upper sealing ring groove and a lower sealing ring groove are formed between the upper step surface and the lower step surface and the pump shaft respectively, and one end of a compression sealing part of the first sealing structure extends to the upper part of the lower sealing ring groove.
3. The high seal-off sewage pump of claim 1, wherein: the connecting seat is internally provided with a connecting cavity, one end of the pump shaft penetrates through the connecting cavity and stretches into the rotating connecting groove to be connected with the impeller, and the second sealing structure comprises an inner sealing unit formed in the connecting cavity and a lower sealing unit formed at the bottom end of the connecting seat.
4. A high seal capacity pump as claimed in claim 3, wherein: the top chamber wall and the bottom chamber wall of connecting chamber all bulge and form corresponding constant head tank, the constant head tank at pump shaft through connecting chamber top and the constant head tank of bottom, interior sealing unit sets up in the constant head tank, interior sealing unit is the cover and establishes the seal cover on the pump shaft is located the part of connecting chamber.
5. A high seal capacity pump as claimed in claim 3, wherein: the bottom of connecting seat sets up the spread groove, lower sealing unit sets up in the spread groove, lower sealing unit is the rubber seal who forms in the spread groove, the pump shaft runs through the spread groove, just lower sealing unit cover is established on the pump shaft is located the part of spread groove.
6. The high seal-off sewage pump of claim 1, wherein: and a limiting groove is formed in the inner wall of the bottom in the cavity, and one end of the impeller rotatably stretches into the limiting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223360295.2U CN219101686U (en) | 2022-12-12 | 2022-12-12 | High-sealing sewage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223360295.2U CN219101686U (en) | 2022-12-12 | 2022-12-12 | High-sealing sewage pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219101686U true CN219101686U (en) | 2023-05-30 |
Family
ID=86464034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223360295.2U Active CN219101686U (en) | 2022-12-12 | 2022-12-12 | High-sealing sewage pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219101686U (en) |
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2022
- 2022-12-12 CN CN202223360295.2U patent/CN219101686U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High sealing sewage pump Effective date of registration: 20231202 Granted publication date: 20230530 Pledgee: Industrial and Commercial Bank of China Limited Yongjia sub branch Pledgor: Yuquan Pump Industry Group Co.,Ltd. Registration number: Y2023330002939 |