CN210715064U - Multistage combined sealing mechanism for plunger coupling piece - Google Patents
Multistage combined sealing mechanism for plunger coupling piece Download PDFInfo
- Publication number
- CN210715064U CN210715064U CN201921398164.9U CN201921398164U CN210715064U CN 210715064 U CN210715064 U CN 210715064U CN 201921398164 U CN201921398164 U CN 201921398164U CN 210715064 U CN210715064 U CN 210715064U
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- seal
- plunger coupling
- pump body
- inflation
- pipeline
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- Expired - Fee Related
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Abstract
The utility model relates to a multi-stage combined sealing mechanism for a plunger coupling piece in the field of fuel engines, which comprises a pump body, wherein a plunger coupling piece placing part is arranged in the pump body, and the plunger coupling piece is placed into the pump body from one side of the pump body; an inner bushing is arranged between the pump body and the plunger coupling piece, a gland is also arranged between the plunger coupling piece and the pump body in a matched manner, the inner bushing is pressed between the pump body and the plunger coupling piece by the gland, a multi-stage combined sealing mechanism is arranged between the gland and the inner bushing, the multi-stage combined sealing mechanism comprises a filler seal and an inflation seal, an inflation pipeline is arranged on the inflation seal in a matched manner, a pipeline channel is also arranged on the gland in a matched manner, and the inflation pipeline is communicated with the outside through the pipeline channel and is used for inflation; a sealing cover body is also arranged on the pipeline channel of the gland in a matching way; the utility model discloses a form stable sealed through traditional sealed cooperation inflatable seal between to the plunger coupling piece and the pump body, prolonged the life of the pump body, the cost is also reduced simultaneously.
Description
Technical Field
The utility model relates to a multistage combined sealing mechanism for plunger coupling spare in the fuel engine field.
Background
In the prior art, a plunger pump is an important device of a hydraulic system; the volume of a sealed working cavity is changed by reciprocating a plunger in a cylinder body to realize oil absorption and oil pressing; the plunger pump has the advantages of high rated pressure, compact structure, high efficiency, convenient flow regulation and the like; plunger pumps are generally classified into single plunger pumps, horizontal plunger pumps, axial plunger pumps and radial plunger pumps; the plunger pump is divided into an axial plunger pump and a radial plunger pump with two representative structural forms; as the radial plunger pump belongs to a novel high-efficiency pump with higher technical content, the radial plunger pump inevitably becomes an important component of the application field of the plunger pump along with the continuous acceleration of the localization; the radial plunger pump is a plunger pump with the reciprocating direction of a piston or a plunger vertical to a driving shaft; general sealing mechanisms can be damaged quickly due to long-term abrasion in the using process, and the long-term use is not facilitated.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a multistage combination formula sealing mechanism is used to plunger coupling, this utility model discloses a traditional sealed cooperation of packing inflatable seal forms stable sealed to between plunger coupling and the pump body, has prolonged the life of the pump body, the while cost is also reduced.
The purpose of the utility model is realized like this: a multi-stage combined sealing mechanism for a plunger coupling comprises a pump body, wherein a plunger coupling placing part is arranged in the pump body, and the plunger coupling is placed into the pump body from one side of the pump body; the plunger pump is characterized in that an inner bushing is arranged between the pump body and the plunger coupling piece, a gland is further arranged between the plunger coupling piece and the pump body in a matched mode, the inner bushing is pressed between the pump body and the plunger coupling piece by the gland, a multi-stage combined sealing mechanism is arranged between the gland and the inner bushing, the multi-stage combined sealing mechanism comprises a filler seal and an inflation seal, an inflation pipeline is arranged on the inflation seal in a matched mode, a pipeline channel is further arranged on the gland in a matched mode, and the inflation pipeline is communicated with the outside through the pipeline channel and used for inflation; and a sealing cover body is also arranged on the pipeline channel of the gland in a matching way.
When the utility model works, the plunger coupling piece is matched with the pump body to work, and is sealed by the multistage combined sealing mechanism during the work, the multistage combined sealing mechanism is arranged between the inner lining and the gland, and then the plunger coupling piece and the inner lining are effectively sealed by the matching between the inflation sealing and the packing sealing of the multistage combined sealing mechanism; when the plunger coupling is in work, the traditional packing seal can be worn or flattened in the long-term use process, oil leakage can be realized, the inflation can be started regularly by adding the inflatable seal, and the outer surface of the plunger coupling can be pressed by the inflatable seal, so that the service life can be prolonged, and the cost can be reduced.
The beneficial effects of the utility model reside in that, this utility model forms stable sealed through traditional sealed cooperation inflatable seal of packing to between the plunger coupling spare and the pump body, has prolonged the life of the pump body, the while also the cost is reduced.
As a further improvement of the utility model, the sealing device is used for ensuring the reliable work of seasoning sealing and inflation sealing and avoiding the damage caused by long-term use; the packing seal is provided with three groups, the inflatable seal is provided with three groups, and the three groups of packing seals and the three groups of inflatable seals are arranged in a staggered manner.
As a further improvement of the utility model, the filler sealing of each layer can be ensured to work stably; the packing seal comprises an inner layer packing seal, a middle layer packing seal and an outer layer packing seal, wherein the inner layer packing seal is tightly attached to the inner bushing.
As a further improvement of the utility model, the inflatable pipeline for ensuring the inflation sealing is convenient to place; and a filler channel for placing an inflation pipeline is arranged in the middle of the filler seal, and the inflation pipeline is communicated to the inside of each inflation seal through the filler channel.
As a further improvement of the utility model, the inflatable seal is wear-resistant and durable for a long time; and a wear-resistant layer is arranged at the contact part of the inflatable seal and the plunger coupling piece.
As a further improvement of the utility model, in order to ensure that one inflation pipeline can inflate a plurality of inflation seals normally; the inflatable seal is provided with an inflatable pipeline which is communicated with the inflatable seals.
Drawings
Fig. 1 is a front view of the present invention.
Wherein, 1 pump body, 2 neck bush, 3 plunger coupling piece, 4 inner layer packing seal, 5 middle layer packing seal, 6 outer layer packing seal, 7 inflation seal, 8 inflation pipeline, 9 pipeline channel, 10 gland.
Detailed Description
As shown in fig. 1, the object of the present invention is achieved by: a multi-stage combined sealing mechanism for a plunger coupling comprises a pump body 1, wherein a plunger coupling placing part is arranged in the pump body 1, and a plunger coupling 3 is placed into the pump body 1 from one side of the pump body 1; an inner bushing 2 is arranged between the pump body 1 and the plunger coupling piece 3, a gland 10 is also arranged between the plunger coupling piece 3 and the pump body 1 in a matched manner, the inner bushing 2 is pressed between the pump body 1 and the plunger coupling piece 3 by the gland 10, a multi-stage combined sealing mechanism is arranged between the gland 10 and the inner bushing 2, the multi-stage combined sealing mechanism comprises a packing seal and an inflatable seal 7, an inflation pipeline 8 is arranged on the inflatable seal 7 in a matched manner, a pipeline channel 9 is also arranged on the gland 10 in a matched manner, and the inflation pipeline 8 is communicated with the outside and used for inflation through the pipeline channel 9; a sealing cover body is also arranged on the pipeline channel 9 of the gland 10 in a matching way; the three groups of packing seals are arranged, the three groups of inflatable seals 7 are arranged, and the three groups of packing seals and the three groups of inflatable seals 7 are arranged in a staggered manner; the packing seal comprises an inner packing seal 4, an intermediate packing seal 5 and an outer packing seal 6, wherein the inner packing seal 4 is arranged close to the inner bushing 2; a filler channel for placing an inflation pipeline 8 is arranged in the middle of the filler seal, and the inflation pipeline 8 is communicated to the inside of each inflation seal 7 through the filler channel; a wear-resistant layer is arranged at the contact part of the inflatable seal 7 and the plunger coupling piece 3; the inflatable seal 7 is provided with an inflatable pipeline 8, and the inflatable pipeline 8 is communicated with the inflatable seal 7.
When the utility model works, the plunger coupling piece 3 cooperates with the pump body 1 to work, and when the utility model works, the multi-stage combined sealing mechanism is used for sealing, and the multi-stage combined sealing mechanism is arranged between the inner lining 2 and the gland 10, and then the plunger coupling piece 3 and the inner lining 2 are effectively sealed by the cooperation between the inflatable seal 7 and the filler seal of the multi-stage combined sealing mechanism; in operation, traditional packing can be worn and torn or flatten in long-term use, and then can the oil leak, and can be regularly beat through gas-filled pipeline 8 and aerify through adding inflatable seal 7, can ensure like this that inflatable seal 7 can press the surface of plunger coupling piece 3, and the wearing layer has better wear-resisting effect, can increase of service life like this, reduce cost.
The present invention is not limited to the above embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some replacements and transformations for some technical features without creative labor according to the disclosed technical contents, and these replacements and transformations are all within the protection scope of the present invention.
Claims (6)
1. A multi-stage combined sealing mechanism for a plunger coupling comprises a pump body, wherein a plunger coupling placing part is arranged in the pump body, and the plunger coupling is placed into the pump body from one side of the pump body; the plunger pump is characterized in that an inner bushing is arranged between the pump body and the plunger coupling piece, a gland is further arranged between the plunger coupling piece and the pump body in a matched mode, the inner bushing is pressed between the pump body and the plunger coupling piece by the gland, a multi-stage combined sealing mechanism is arranged between the gland and the inner bushing, the multi-stage combined sealing mechanism comprises a filler seal and an inflation seal, an inflation pipeline is arranged on the inflation seal in a matched mode, a pipeline channel is further arranged on the gland in a matched mode, and the inflation pipeline is communicated with the outside through the pipeline channel and used for inflation; and a sealing cover body is also arranged on the pipeline channel of the gland in a matching way.
2. The multi-stage combined type seal mechanism for a plunger coupling according to claim 1, wherein: the packing seal is provided with three groups, the inflatable seal is provided with three groups, and the three groups of packing seals and the three groups of inflatable seals are arranged in a staggered manner.
3. A multistage combined type seal mechanism for a plunger coupling according to claim 1 or 2, characterized in that: the packing seal comprises an inner layer packing seal, a middle layer packing seal and an outer layer packing seal, wherein the inner layer packing seal is tightly attached to the inner bushing.
4. A multistage combined type seal mechanism for a plunger coupling according to claim 1 or 2, characterized in that: and a filler channel for placing an inflation pipeline is arranged in the middle of the filler seal, and the inflation pipeline is communicated to the inside of each inflation seal through the filler channel.
5. A multistage combined type seal mechanism for a plunger coupling according to claim 1 or 2, characterized in that: and a wear-resistant layer is arranged at the contact part of the inflatable seal and the plunger coupling piece.
6. A multistage combined type seal mechanism for a plunger coupling according to claim 1 or 2, characterized in that: the inflatable seal is provided with an inflatable pipeline which is communicated with the inflatable seals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921398164.9U CN210715064U (en) | 2019-08-27 | 2019-08-27 | Multistage combined sealing mechanism for plunger coupling piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921398164.9U CN210715064U (en) | 2019-08-27 | 2019-08-27 | Multistage combined sealing mechanism for plunger coupling piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210715064U true CN210715064U (en) | 2020-06-09 |
Family
ID=70933922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921398164.9U Expired - Fee Related CN210715064U (en) | 2019-08-27 | 2019-08-27 | Multistage combined sealing mechanism for plunger coupling piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210715064U (en) |
-
2019
- 2019-08-27 CN CN201921398164.9U patent/CN210715064U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200609 Termination date: 20210827 |
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| CF01 | Termination of patent right due to non-payment of annual fee |