CN213953973U - Mechanical seal for sewage pump - Google Patents
Mechanical seal for sewage pump Download PDFInfo
- Publication number
- CN213953973U CN213953973U CN202022377673.2U CN202022377673U CN213953973U CN 213953973 U CN213953973 U CN 213953973U CN 202022377673 U CN202022377673 U CN 202022377673U CN 213953973 U CN213953973 U CN 213953973U
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- pump
- mechanical seal
- pump body
- pump cover
- partition plate
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a mechanical seal for sewage pump, which comprises a pump body, the right side fixedly connected with pump cover of the pump body, be provided with the output shaft in the pump body, the output shaft end is provided with stretches out the end, stretch out in the end stretches into the pump cover, be provided with the baffle between the pump body and the pump cover, be provided with spacing seat on the pump cover inner wall, be provided with one-level mechanical seal between spacing seat and the baffle, be provided with the axle rank on the output shaft, be provided with second grade mechanical seal between axle rank and the baffle, be provided with the fast-assembling device between the pump body, pump cover and the baffle. The utility model discloses simple structure, it is sealed effectual and the dismouting is convenient.
Description
Technical Field
The utility model relates to a sewage pump technical field specifically is a mechanical seal for sewage pump.
Background
The mechanical seal is a device for preventing fluid leakage, which is formed by at least one pair of end faces perpendicular to the rotation axis, keeping fit and relatively sliding under the action of fluid pressure and the elasticity of a compensating mechanism and the matching of an auxiliary seal. However, most of the existing mechanical sealing devices for sewage pumps have the defects of unsatisfactory sealing effect and difficulty in maintenance and replacement of the sealing devices. Therefore, a new mechanical sealing device for a sewage pump is needed to overcome the above defects.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a mechanical seal for sewage pump to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a mechanical seal for sewage pump, includes the pump body, the right side fixedly connected with pump cover of the pump body, be provided with the output shaft in the pump body, the output shaft end is provided with stretches out the end, stretch out in the end stretches into the pump cover, be provided with the baffle between the pump body and the pump cover, be provided with spacing seat on the pump cover inner wall, be provided with one-level mechanical seal between spacing seat and the baffle, be provided with the axle rank on the output shaft, be provided with second grade mechanical seal between axle rank and the baffle, be provided with the fast-assembling device between the pump body, pump cover and the baffle.
Preferably, the first-stage mechanical seal and the second-stage mechanical seal comprise a left sealing ring and a right sealing ring, and a spring is arranged between the left sealing ring and the right sealing ring.
Preferably, the pump cover is provided with a right flange, the pump body is provided with a left flange, and the partition plate is arranged between the left flange and the right flange.
Preferably, a group of connecting shafts are fixedly connected to the left flange, a screw rod is rotatably connected to the connecting shafts, a nut is connected to the screw rod in a threaded mode, and a screwing ring is fixedly connected to the nut.
Preferably, a group of U-shaped grooves are formed in the partition plate and the right flange, and the screw rod is in clamping fit with the U-shaped grooves.
Preferably, the partition plate and the pump cover are made of stainless steel.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses in, one-level mechanical seal and second grade mechanical seal cooperation have improved sealed effect, and the fast-assembling device makes things convenient for one-level mechanical seal, second grade mechanical seal dismouting, convenient maintenance and change. The spring provides elasticity to ensure that the end face of the sealing ring can be in good contact. The baffle sets up and conveniently dismantles second grade mechanical seal, and the pump body is connected with the pump cover to left flange and the cooperation realization of left flange. The nut can be driven to rotate by rotating the screwing ring by hand, and the disassembly and the assembly are convenient. The partition plate and the pump cover are made of stainless steel materials, so that the anti-rust performance is stronger, and the service life is longer. The utility model discloses simple structure, it is sealed effectual and the dismouting is convenient.
Drawings
FIG. 1 is a schematic structural view of a mechanical seal for a sewage pump;
fig. 2 is a partially enlarged view of fig. 1 at K.
In the figure: 1-pump body, 2-pump cover, 3-left flange, 4-right flange, 5-partition plate, 6-U-shaped groove, 7-connecting shaft, 8-screw rod, 9-nut, 10-screwing ring, 11-output shaft, 12-extending end, 13-secondary mechanical seal, 14-primary mechanical seal, 15-left sealing ring, 16-right sealing ring, 17-spring, 18-shaft step, 19-limiting seat and 20-quick assembly device.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution:
the utility model provides a mechanical seal for sewage pump, includes the pump body 1, the right side fixedly connected with pump cover 2 of the pump body 1, be provided with output shaft 11 in the pump body 1, output shaft 11 end is provided with stretches out end 12, stretch out in end 12 stretches into pump cover 2, be provided with baffle 5 between the pump body 1 and the pump cover 2, be provided with spacing seat 19 on the 2 inner walls of pump cover, be provided with one-level mechanical seal 14 between spacing seat 19 and the baffle 5, be provided with axle step 18 on the output shaft 11, be provided with second grade mechanical seal 13 between axle step 18 and the baffle 5, be provided with fast-assembling device 20 between the pump body 1, the pump cover 2 and the baffle 5.
The one-level mechanical seal 14 and the second-level mechanical seal 13 are matched, the sealing effect is improved, the quick mounting device 20 facilitates the dismounting and mounting of the one-level mechanical seal 14 and the second-level mechanical seal 13, and the maintenance and the replacement are convenient.
Preferably, the primary mechanical seal 14 and the secondary mechanical seal 13 comprise a left sealing ring 15 and a right sealing ring 16, and a spring 17 is arranged between the left sealing ring 15 and the right sealing ring 16.
The spring 17 provides elastic force to ensure that the end faces of the sealing rings can be in good contact.
Preferably, the pump cover 2 is provided with a right flange 4, the pump body 1 is provided with a left flange 3, and the partition plate 5 is arranged between the left flange 3 and the right flange 4.
The baffle 5 sets up and conveniently dismantles second grade mechanical seal 13, and left flange 2 realizes with the cooperation of left flange 4 that pump body 1 is connected with pump cover 2.
Preferably, a group of connecting shafts 7 is fixedly connected to the left flange 3, a screw 8 is rotatably connected to the connecting shafts 7, a nut 9 is connected to the screw 8 through threads, and a screwing ring 10 is fixedly connected to the nut 9.
The nut 9 can be driven to rotate by rotating the screwing ring 10 by hand, and the disassembly and the assembly are convenient.
Preferably, a group of U-shaped grooves 6 are formed in the partition plate 5 and the right flange 4, and the screw 8 is in clamping fit with the U-shaped grooves 6.
Preferably, the partition plate 5 and the pump cover 2 are made of stainless steel.
The partition plate 5 and the pump cover 2 are made of stainless steel, so that the anti-rust performance is stronger, and the service life is longer.
The utility model discloses a theory of operation is: the one-level mechanical seal 14 and the second-level mechanical seal 13 are matched, the sealing effect is improved, the quick mounting device 20 facilitates the dismounting and mounting of the one-level mechanical seal 14 and the second-level mechanical seal 13, and the maintenance and the replacement are convenient. The spring 17 provides elastic force to ensure that the end faces of the sealing rings can be in good contact. The baffle 5 sets up and conveniently dismantles second grade mechanical seal 13, and left flange 2 realizes with the cooperation of left flange 4 that pump body 1 is connected with pump cover 2. The nut 9 can be driven to rotate by rotating the screwing ring 10 by hand, and the disassembly and the assembly are convenient. The partition plate 5 and the pump cover 2 are made of stainless steel, so that the anti-rust performance is stronger, and the service life is longer.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The utility model provides a mechanical seal for sewage pump, includes pump body (1), its characterized in that: the pump comprises a pump body (1), and is characterized in that the right side of the pump body (1) is fixedly connected with a pump cover (2), an output shaft (11) is arranged in the pump body (1), an extending end (12) is arranged at the tail end of the output shaft (11), the extending end (12) extends into the pump cover (2), a partition plate (5) is arranged between the pump body (1) and the pump cover (2), a limiting seat (19) is arranged on the inner wall of the pump cover (2), a one-level mechanical seal (14) is arranged between the limiting seat (19) and the partition plate (5), an axial step (18) is arranged on the output shaft (11), a second-level mechanical seal (13) is arranged between the axial step (18) and the partition plate (5), and a fast assembling device (20) is arranged between the pump body (1), the pump cover (2) and the partition plate (5).
2. The mechanical seal for a sewage pump of claim 1, wherein: the primary mechanical seal (14) and the secondary mechanical seal (13) comprise a left sealing ring (15) and a right sealing ring (16), and a spring (17) is arranged between the left sealing ring (15) and the right sealing ring (16).
3. The mechanical seal for a sewage pump of claim 2, wherein: the pump cover (2) is provided with a right flange (4), the pump body (1) is provided with a left flange (3), and the partition plate (5) is arranged between the left flange (3) and the right flange (4).
4. The mechanical seal for a sewage pump of claim 3, wherein: fixedly connected with a set of connecting axle (7) on left side flange (3), it is connected with screw rod (8) to rotate on connecting axle (7), threaded connection has nut (9) on screw rod (8), fixedly connected with twists ring (10) on nut (9).
5. The mechanical seal for a sewage pump of claim 4, wherein: a group of U-shaped grooves (6) are formed in the partition plate (5) and the right flange (4), and the screw rod (8) is in clamping fit with the U-shaped grooves (6).
6. The mechanical seal for a sewage pump of claim 5, wherein: the partition plate (5) and the pump cover (2) are made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022377673.2U CN213953973U (en) | 2020-10-23 | 2020-10-23 | Mechanical seal for sewage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022377673.2U CN213953973U (en) | 2020-10-23 | 2020-10-23 | Mechanical seal for sewage pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213953973U true CN213953973U (en) | 2021-08-13 |
Family
ID=77204710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022377673.2U Active CN213953973U (en) | 2020-10-23 | 2020-10-23 | Mechanical seal for sewage pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213953973U (en) |
-
2020
- 2020-10-23 CN CN202022377673.2U patent/CN213953973U/en active Active
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