CN220850112U - Mechanical sealing device for sewage pump - Google Patents
Mechanical sealing device for sewage pump Download PDFInfo
- Publication number
- CN220850112U CN220850112U CN202322559093.9U CN202322559093U CN220850112U CN 220850112 U CN220850112 U CN 220850112U CN 202322559093 U CN202322559093 U CN 202322559093U CN 220850112 U CN220850112 U CN 220850112U
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- China
- Prior art keywords
- sealing
- pipe
- sewage pump
- water outlet
- wall
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- 238000007789 sealing Methods 0.000 title claims abstract description 103
- 239000010865 sewage Substances 0.000 title claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000009434 installation Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity 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
- 239000000123 paper Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Mechanical Sealing (AREA)
Abstract
The utility model discloses a mechanical sealing device for a sewage pump, which belongs to the technical field of sealing devices, and comprises a pump body and a drainage bent pipe, wherein one side of the pump body is communicated with a water outlet, the end part of the water outlet is connected with an outwards-expanding sealing pipe, and a first connecting flange is arranged on the outer surface of the joint of the sealing pipe and the water outlet; the utility model solves the problems that the existing pipe orifice joint for the sewage pump is mostly directly installed by adopting a simple connecting flange, the joint is easy to loosen due to vibration during the use of the sewage pump, the stability of the single seal of the connecting structure is lower, and leakage is easy to occur.
Description
Technical Field
The utility model relates to the technical field of sealing devices, in particular to a mechanical sealing device for a sewage pump.
Background
The sewage pump belongs to one of centrifugal impurity pumps, and has various forms, such as a submersible type and a dry type, the most commonly used submersible type at present is a QW type submersible sewage pump, and the most commonly used dry type sewage pump is a W type horizontal sewage pump and a WL type vertical sewage pump. The device is mainly used for conveying urban sewage, and feces or liquid contain fibers. The temperature of the medium to be conveyed is usually not more than 80 ℃ for solid particles such as paper dust. Because the conveyed medium contains fiber matters which are easy to wind or bunch. Therefore, the pump flow channel is easy to be blocked, once the pump is blocked, the pump can not work normally, even the motor is burnt, and thus, the pollution discharge is not smooth. And the method has serious influence on urban life and environmental protection. Therefore, the blocking resistance and the reliability are important factors for the advantages and disadvantages of the sewage pump.
The current sewage pump is with mouth of pipe junction is direct to adopt simple flange to install mostly, because self can produce vibrations when the sewage pump uses, it causes the junction to become flexible easily to connection structure is comparatively single sealed stability is lower, and the seepage appears easily, is unfavorable for people's use, consequently, the skilled person provides a mechanical seal device for the sewage pump, in order to solve the problem that proposes among the above-mentioned background art.
Disclosure of utility model
The utility model aims to provide a mechanical sealing device for a sewage pump, which solves the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the mechanical sealing device for the sewage pump comprises a pump body and a drainage bent pipe, wherein one side of the pump body is communicated with a water outlet, the end part of the water outlet is connected with an outwards-expanding sealing pipe, and a first connecting flange is arranged on the outer surface of the joint of the sealing pipe and the water outlet;
The end part of the outer surface of the drain elbow, which is close to the water outlet, is provided with a sealing block which can be attached to the inner wall of the sealing pipe, a first sealing ring is arranged between the outer ring of the sealing block and the inner wall of the sealing pipe, one side, which is far away from the pump body, of the sealing block is connected with a mounting pipe sleeved on the outer ring of the drain elbow through a spring, and one end, which is close to the pump body, of the mounting pipe is provided with a second connecting flange.
Preferably: the inner wall of the sealing tube is a conical surface which gradually expands towards the outside of the port, and the outer ring of the sealing block is a conical surface which can be completely attached to the inner wall of the sealing tube.
Preferably: the outer ring of the sealing block is fixedly provided with a first sealing ring, and the outer surface of the first sealing ring is contacted with the inner wall of the sealing tube.
Preferably: the side face of the sealing block is provided with a plurality of groups of springs which are circumferentially and equidistantly arranged around the bearing, and the middle part of each group of springs is provided with a telescopic component.
Preferably: the telescopic assembly comprises a fixed rod, a clamping plate and a movable pipe, one end of the fixed rod is welded with one side of the sealing block, the inner wall of the installation pipe is welded with the movable pipe capable of sliding on the surface of the fixed rod, and the other end of the fixed rod is welded with a disc-shaped clamping plate positioned inside the movable pipe.
Preferably: one end of the sealing tube, which is far away from the water outlet, is integrally formed with a sealing ring, one side of the sealing ring, which is far away from the water outlet, is provided with a groove, and the interior of the groove is provided with a second sealing ring which extends to the exterior of the groove.
Compared with the prior art, the utility model has the beneficial effects that:
1. in the utility model, the sealing joint is connected with the inside of the pipe, so that the weathering caused by long-time use can be reduced, the service life of the pipe is prolonged, and the mechanical sealing device is simple to install and easy to operate.
2. According to the utility model, the elastic force is provided for the mechanical sealing structure by compressing the spring to the limit, so that the sealing performance of the mechanical connection part of the sewage pump can be further improved, and the friction force of the threaded connection part of the bolt can be increased to prevent the loosening of the threaded connection part.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a test chart of the overall structure of the present utility model;
FIG. 3 is a cross-sectional view of a partial structure of the present utility model;
FIG. 4 is an enlarged view of A in FIG. 3;
Fig. 5 is an enlarged view of B in fig. 3.
In the figure: 1. a pump body; 2. a drain trap; 3. a water outlet; 4. sealing the tube; 5. a first connection flange; 6. a sealing block; 7. a first seal ring; 8. a spring; 9. installing a pipe; 10. a second connection flange; 11. a fixed rod; 12. a clamping plate; 13. a movable tube; 14. a seal ring; 15. a groove; 16. and a second sealing ring.
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.
Referring to fig. 1 to 5, in the embodiment of the utility model, a mechanical sealing device for a sewage pump comprises a pump body 1 and a drain elbow 2, wherein one side of the pump body 1 is communicated with a water outlet 3, an end part of the water outlet 3 is connected with an outwards-expanded sealing pipe 4, a first connecting flange 5 is arranged on the outer surface of the joint of the sealing pipe 4 and the water outlet 3, a sealing block 6 which can be attached to the inner wall of the sealing pipe 4 is arranged on the outer surface of the drain elbow 2 near the end part of the drain elbow, which is connected with the water outlet 3, a first sealing ring 7 is arranged between the outer ring of the sealing block 6 and the inner wall of the sealing pipe 4, one side of the sealing block 6, which is far away from the pump body 1, is connected with a mounting pipe 9 sleeved on the outer ring of the drain elbow 2 through a spring 8, and one end of the mounting pipe 9, which is near the pump body 1, is provided with a second connecting flange 10.
When the drain elbow 2 and the water outlet 3 of the sewage pump are in butt joint installation, the end part of the drain elbow 2 with the sealing block 6 is buckled into the sealing pipe 4 and the water outlet 3, the pipe diameter of the drain elbow 2 is smaller than the pipe diameter of the water outlet 3, after the drain elbow 2 and the water outlet 3 are assembled, a part of the end part of the drain elbow 2 is inserted into the water outlet 3, the sealing block 6 is abutted against the surface of the sealing pipe 4, the first sealing ring 7 seals the joint between the sealing block and the sealing pipe, a user presses the installation pipe 9 to drive the spring 8 to compress, after the spring 8 is compressed to the limit, the first connecting flange 5 and the second connecting flange 10 are fixedly connected through bolts, so that the butt joint sealing installation of the drain elbow 2 and the water outlet 3 is completed, the inside of the sealing pipe 4 is connected and sealed, the sealing effect can be improved due to the weathering of the sealing ring, the sealing effect can be further improved by utilizing the elastic force provided by the spring 8 to the installation pipe 9 and the second connecting flange 10, the sealing performance of the mechanical joint of the sewage pump can be further improved, and the friction force of the threaded connection of the bolts can be increased, and the loosening of the friction force can be prevented.
The inner wall of the sealing tube 4 is a conical surface gradually expanding towards the outside of the port, the outer ring of the sealing block 6 is a conical surface which can be completely attached to the inner wall of the sealing tube 4, the contact area between the sealing block and the conical surface can be increased, the sealing performance between the sealing block and the conical surface is improved, the outer ring of the sealing block 6 is fixedly provided with the first sealing ring 7, the outer surface of the first sealing ring 7 is contacted with the inner wall of the sealing tube 4, and the first sealing ring 7 is conveniently extruded when the sealing block and the sealing block are inserted, so that the sealing block can achieve a good sealing effect.
The side-mounting of sealing block 6 has the multiunit around wherein the bearing is circumference equidistance and arranges spring 8, the expansion assembly is all installed at the middle part of every group spring 8, prevent that it from taking place the side deformation when compressing spring 8, expansion assembly includes dead lever 11, cardboard 12 and movable tube 13, the one end of dead lever 11 and one side welding of sealing block 6, the inner wall welding of installation tube 9 has can be at the gliding movable tube 13 in dead lever 11 surface, the other end welding of dead lever 11 has the discoid cardboard 12 that is located movable tube 13 inside, when pressing installation tube 9, installation tube 9 can drive movable tube 13 at the surface slip of dead lever 11, cardboard 12 can prevent that the looks from taking place to break away from between the two.
One end of the sealing tube 4 far away from the water outlet 3 is integrally formed with a sealing ring 14, one side of the sealing ring 14 far away from the water outlet 3 is provided with a groove 15, the interior of the groove 15 is provided with a second sealing ring 16 extending to the exterior of the groove, after the spring 8 is compressed to the limit, the inner wall of the mounting tube 9 presses the second sealing ring 16, so that the sealing performance of the mechanical sealing structure can be further improved.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The utility model provides a mechanical seal device for sewage pump, includes pump body (1) and drainage return bend (2), one side intercommunication of pump body (1) has delivery port (3), its characterized in that: the end part of the water outlet (3) is connected with an outwards-expanded sealing pipe (4), and a first connecting flange (5) is arranged on the outer surface of the joint of the sealing pipe (4) and the water outlet (3);
The utility model discloses a drainage return bend, including drainage return bend (2), sealing block (6) that can laminate mutually with sealed pipe (4) inner wall is installed to the tip department that drainage return bend (2) surface is close to its delivery port (3), install first sealing washer (7) between the outer lane of sealing block (6) and sealed pipe (4) inner wall, one side that the pump body (1) was kept away from to sealing block (6) is connected with through spring (8) and overlaps and establish installation pipe (9) at drainage return bend (2) outer lane, second flange (10) are installed to one end that installation pipe (9) are close to the pump body (1).
2. A mechanical seal for a sewage pump according to claim 1, wherein: the inner wall of the sealing tube (4) is a conical surface which gradually expands towards the outside of the port, and the outer ring of the sealing block (6) is a conical surface which can be completely attached to the inner wall of the sealing tube (4).
3. A mechanical seal for a sewage pump according to claim 2, wherein: the outer ring of the sealing block (6) is fixedly provided with a first sealing ring (7), and the outer surface of the first sealing ring (7) is contacted with the inner wall of the sealing tube (4).
4. A mechanical seal for a sewage pump according to claim 1, wherein: the side face of the sealing block (6) is provided with a plurality of groups of springs (8) which are circumferentially and equidistantly arranged around the bearing, and the middle part of each group of springs (8) is provided with a telescopic component.
5. A mechanical seal for a sewage pump according to claim 4, wherein: the telescopic assembly comprises a fixed rod (11), a clamping plate (12) and a movable pipe (13), one end of the fixed rod (11) is welded with one side of the sealing block (6), the inner wall of the installation pipe (9) is welded with the movable pipe (13) capable of sliding on the surface of the fixed rod (11), and the other end of the fixed rod (11) is welded with a disc-shaped clamping plate (12) located inside the movable pipe (13).
6. A mechanical seal for a sewage pump according to claim 1, wherein: one end of the sealing tube (4) far away from the water outlet (3) is integrally formed with a sealing ring (14), one side of the sealing ring (14) far away from the water outlet (3) is provided with a groove (15), and a second sealing ring (16) extending to the outside of the groove (15) is arranged in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322559093.9U CN220850112U (en) | 2023-09-20 | 2023-09-20 | Mechanical sealing device for sewage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322559093.9U CN220850112U (en) | 2023-09-20 | 2023-09-20 | Mechanical sealing device for sewage pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220850112U true CN220850112U (en) | 2024-04-26 |
Family
ID=90776473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322559093.9U Active CN220850112U (en) | 2023-09-20 | 2023-09-20 | Mechanical sealing device for sewage pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220850112U (en) |
-
2023
- 2023-09-20 CN CN202322559093.9U patent/CN220850112U/en active Active
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