CN202520541U - Autocompensation clearance expansion ring plunger - Google Patents
Autocompensation clearance expansion ring plunger Download PDFInfo
- Publication number
- CN202520541U CN202520541U CN2012201824452U CN201220182445U CN202520541U CN 202520541 U CN202520541 U CN 202520541U CN 2012201824452 U CN2012201824452 U CN 2012201824452U CN 201220182445 U CN201220182445 U CN 201220182445U CN 202520541 U CN202520541 U CN 202520541U
- Authority
- CN
- China
- Prior art keywords
- expanding ring
- autocompensation
- plunger
- ring plunger
- joint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model discloses an autocompensation clearance expansion ring plunger, and belongs to the technical field of oil well pumps. The autocompensation clearance expansion ring plunger comprises an upper delivery joint, a connection sleeve, and double-sleeve travelling valve assemblies, wherein a plurality of expansion rings are respectively arranged at the connection part between the upper delivery joint and the connection sleeve, the connection part between the connection sleeve and the travelling valve assembly and the connection part between the double-sleeve travelling valve assemblies. The autocompensation clearance expansion ring plunger is simple in structure, and convenient to install and maintain; after the expansion rings are abraded, a user only needs to replace the expansion rings; the cost is low; and because the expansion rings are closely matched with a pump cylinder, the seepage loss is greatly reduced, and the pump efficiency is improved.
Description
Technical field
[0001] the utility model relates to a kind of oil well pump and uses plunger, especially a kind of automatic compensation gap expanding ring plunger.
Background technique
[0002] present, widely used oil well pump in the bar oil recovery is arranged, in oil pumping process,, when moving up and down, plunger usually produces friction in pump barrel with pump barrel because the gap between plunger and the pump barrel is very little, cause the wearing and tearing of plunger and pump barrel; On the other hand, though the gap of plunger and pump barrel is very little, along with a small amount of fluid runs off from the gap, the sand grains in the fluid also can be clamp-oned in the gap, has strengthened the wearing and tearing of pump barrel and plunger, greatly reduces the working life of pump barrel and plunger.
Summary of the invention
The technical assignment of the utility model is a kind of automatic compensation gap expanding ring plunger that provides to the deficiency of above existing technology.
The utility model solves the technological scheme that its technical problem adopted: automatic compensation gap expanding ring plunger; Comprise delivery connection; Connecting sleeve; Two cover traveling valve assemblies, wherein the joint of joint, connecting sleeve and the traveling valve assembly of delivery connection and connecting sleeve and the joint between two cover traveling valve assembly are respectively equipped with some expanding rings on said.
The expanding ring of said each joint is 3, and purpose is the uncovered coincidence of avoiding on the expanding ring, prevents that fluid from leaking from the expanding ring open-mouth.
Said expanding ring is an opened type, and purpose is to have automatic expansion function, and it is also convenient to install.
The external diameter of said expanding ring is slightly larger than the pump barrel internal diameter, and purpose is that expanding ring is closely cooperated with pump barrel under elastic reaction all the time.
The utility model has the advantages that: 1, simple in structure, maintenance is installed conveniently, after the expanding ring wearing and tearing, only need to change expanding ring and get final product, expense is very low; 2, because expanding ring and pump barrel closely cooperate, significantly reduce wastage, improved pump efficiency; 3, because but expanding ring harmomegathus even the pump barrel size has deviation slightly, can not influence pump efficiency yet, this characteristic has more advantage when repairing old pump; 4, has certain function of strike-ofing.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the structural representation of the utility model expanding ring.
Embodiment
Below in conjunction with Figure of description the utility model is done following detailed description.
As depicted in figs. 1 and 2; Automatic compensation gap expanding ring plunger; Comprise delivery connection 1; Connecting sleeve 3, two cover traveling valve assemblies 4 and 5, wherein the joint of the joint of the joint of delivery connection 1 and connecting sleeve 3, connecting sleeve 3 and traveling valve assembly 4 and traveling valve assembly 4 and traveling valve assembly 5 is respectively equipped with some expanding rings 2 on said.
The expanding ring 2 of said each joint is 3, and purpose is the uncovered coincidence of avoiding on the expanding ring, prevents that fluid from leaking from the open-mouth of expanding ring.
Said expanding ring 2 is an opened type, and purpose is to have automatic expansion function, and it is also convenient to install.
The external diameter of said expanding ring 2 is slightly larger than the pump barrel internal diameter, and purpose is that expanding ring is closely cooperated with pump barrel under elastic reaction all the time.
Claims (4)
1. automatic compensation gap expanding ring plunger; Comprise delivery connection; Connecting sleeve; And two cover traveling valve assemblies, it is characterized in that the joint of joint, connecting sleeve and the traveling valve assembly of delivery connection and connecting sleeve on said and the joint between two cover traveling valve assembly are respectively equipped with some expanding rings.
2. automatic compensation gap expanding ring plunger according to claim 1, the expanding ring that it is characterized in that said each joint is 3.
3. automatic compensation gap expanding ring plunger according to claim 1 is characterized in that said expanding ring is an opened type.
4. according to each described automatic compensation gap expanding ring plunger of claim 1-3, it is characterized in that the external diameter of said expanding ring is slightly larger than the internal diameter of pump barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201824452U CN202520541U (en) | 2012-04-26 | 2012-04-26 | Autocompensation clearance expansion ring plunger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201824452U CN202520541U (en) | 2012-04-26 | 2012-04-26 | Autocompensation clearance expansion ring plunger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202520541U true CN202520541U (en) | 2012-11-07 |
Family
ID=47103493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201824452U Expired - Fee Related CN202520541U (en) | 2012-04-26 | 2012-04-26 | Autocompensation clearance expansion ring plunger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202520541U (en) |
-
2012
- 2012-04-26 CN CN2012201824452U patent/CN202520541U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20130426 |