CN211315733U - Double-sealing one-way grease injection valve - Google Patents
Double-sealing one-way grease injection valve Download PDFInfo
- Publication number
- CN211315733U CN211315733U CN201921988765.5U CN201921988765U CN211315733U CN 211315733 U CN211315733 U CN 211315733U CN 201921988765 U CN201921988765 U CN 201921988765U CN 211315733 U CN211315733 U CN 211315733U
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- China
- Prior art keywords
- valve
- conical surface
- case
- grease injection
- cap
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Abstract
The utility model discloses a one-way grease injection valve of double seal, including end cap, case and valve body, the upper end threaded connection of case has the valve cap, cut open on the valve cap has the first through-hole, be provided with the end cap in the first through-hole, and the both ends of end cap all run through the first through-hole, the upper end of end cap cup joints the circlip, and the circlip is located the upside of valve cap, the lower extreme of end cap is provided with conical surface one, be provided with conical surface two on the case, conical surface one closely contacts with conical surface two, it has the grease injection hole to cut open in the case, cut open on the case and have the seal groove, be provided with the O type circle in the seal groove, the lower extreme threaded connection of; the utility model provides a one-way fat valve of annotating of dual seal, it easily adopts integrated configuration such as valve cap, end cap, valve body, case, steel ball after annotating the fat, carries out dual seal to the device, increases sealed reliability, is favorable to improving the security, prolongs the life of apparatus.
Description
Technical Field
The utility model relates to a well drilling oil recovery (gas) field especially relates to a double seal one-way notes fat valve.
Background
In the process of oil and gas exploitation operation, lubricating grease needs to be injected into wellhead equipment, the oil exploitation operation environment is generally poor, once pollutants such as sand grains enter a grease injection valve or the grease is doped with impurities, the grease injection valve is easy to fail to seal or lose effectiveness in time after the grease injection is finished, and the major defects such as pressure leakage and leakage are easily caused, so that the sealing effect and the safety of the whole device are poor.
In the prior art, the grease injection valve is sealed by a steel ball seat, and the metal collides with each other for many times to damage a sealing surface, so that the sealing fails, and the problem of short service life of the grease injection valve is caused.
Therefore, in order to solve the above technical problems, it is necessary to provide a double-sealing one-way grease injection valve.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a fat valve is annotated to dual seal one-way, it easily adopts integrated configuration such as valve cap, end cap, valve body, case, steel ball after annotating the fat, carries out dual seal to the device, increases sealed reliability, is favorable to improving the security, prolongs the life of apparatus.
In order to achieve the above object, an embodiment of the present invention provides the following technical solutions:
the utility model provides a one-way grease injection valve of double seal, includes end cap, case and valve body, the upper end threaded connection of case has the valve cap, it has first through-hole to open on the valve cap, be provided with the end cap in the first through-hole, and the both ends of end cap all run through first through-hole, circlip is cup jointed to the upper end of end cap, and circlip is located the upside of valve cap, the lower extreme of end cap is provided with conical surface one, be provided with conical surface two on the case, conical surface one and conical surface two in close contact with, it has the grease injection hole to open in the case, open on the case and have the seal groove, be provided with O type circle in the seal groove, the lower extreme threaded connection of case has the valve body, be provided with conical surface three and conical surface four on the valve body, conical surface three and conical surface.
As a further improvement of the utility model, the grease injection hole and the vertical part form a 45-degree included angle.
As a further improvement of the utility model, the lower end taper of the valve core is 60 degrees.
As a further improvement of the utility model, the one end of the steel ball contacts with the second conical surface on the valve body, and the other end contacts with the guide sleeve under the action of the spring.
As a further improvement of the utility model, the elastic retainer ring can fixedly connect the plug to the valve cap.
As a further improvement, the lower end of the steel ball is provided with a guide sleeve, the lower end of the guide sleeve is provided with a spring, and the spring directly acts on the guide sleeve.
The utility model has the advantages that: the utility model provides a one-way fat valve of annotating of dual seal, it easily adopts integrated configuration such as valve cap, end cap, valve body, case, steel ball after annotating the fat, carries out dual seal to the device, increases sealed reliability, is favorable to improving the security, prolongs the life of apparatus.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a double-sealing one-way grease injection valve according to an embodiment of the present invention.
In the figure: 1. the novel oil-gas mixing valve comprises a plug, 2 parts of an elastic retainer ring, 3 parts of a valve cap, 4 parts of a valve core, 5 parts of an O-shaped ring, 6 parts of a valve body, 7 parts of a steel ball, 8 parts of a guide sleeve, 9 parts of a spring and 10 parts of a grease injection hole.
Detailed Description
In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below 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, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
In the various figures of the present invention, certain dimensions of structures or portions are exaggerated relative to other structures or portions for ease of illustration, and thus, are used only to illustrate the basic structure of the subject matter of the present invention.
Terms such as "left", "right", and the like, used herein to denote relative spatial positions, are used for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "to the right" of other elements or features would then be oriented "to the left" of the other elements or features. Thus, the exemplary term "right side" may encompass both left and right orientations. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Referring to fig. 1, in an embodiment of the present invention, a double-sealing one-way grease injection valve comprises a plug 1, a valve core 4 and a valve body 6, wherein the upper end of the valve core 4 is connected with a valve cap 3 through a thread, a first through hole is drilled on the valve cap 3, the plug 1 is arranged in the first through hole, and the both ends of end cap 1 all run through first through-hole, the upper end of end cap 1 cup joints circlip 2, and circlip 2 is located the upside of valve cap 3, the lower extreme of end cap 1 is provided with conical surface one, be provided with conical surface two on the case 4, conical surface one and conical surface two in close contact with, it has annotate fat hole 10 to open in the case 4, it has the seal groove to open on the case 4, be provided with O type circle 5 in the seal groove, the lower extreme threaded connection of case 4 has valve body 6, be provided with conical surface three and conical surface four on the valve body 6, conical surface three and conical surface four in close contact with, be provided with steel ball 7 in the valve.
Referring to fig. 1, the grease injection hole 10 forms an included angle of 45 degrees with the vertical plane, so that the grease injection process is more smooth; the lower end taper of the valve core 4 is 60 degrees, which is not only beneficial to the sealing performance of the conical surface, but also beneficial to the smooth operation of the grease injection process; one end of the steel ball 7 is in contact with the second upper conical surface of the valve body 6, and the other end of the steel ball is in contact with the guide sleeve 8 under the action of the spring, when grease injection is not needed, the steel ball 7 is easy to abut against the second lower conical surface of the valve body 6 under the combined action of the guide sleeve 8 and the spring 9, the whole grease injection valve is convenient to seal again, and when grease injection is needed, the steel ball 7, the guide sleeve 8 and the spring 9 are not easy to influence the whole grease injection process; the elastic retainer ring 2 can fixedly connect the plug 1 to the valve cap 3, the elastic retainer ring 2 can fix the plug 1 on the valve cap 3 and can also take the plug 1 off the valve cap 3, so that the grease injection and sealing process can be assisted in time according to the requirements of actual conditions; the lower end of the steel ball 7 is provided with a guide sleeve 8, the lower end of the guide sleeve 8 is provided with a spring 9, the steel ball 7, the guide sleeve 8 and the spring 9 jointly form another sealing mechanism, the grease injection valve is convenient to seal, the grease injection process is easy to realize, the spring 9 directly acts on the guide sleeve 8, and the steel ball 7 is convenient to seal timely and accurately.
When the grease injection valve is used, referring to fig. 1, the valve cap 3 is screwed off, the threads between the valve core 4 and the valve body 6 are unscrewed, the sealing at the lower ends of the valve core 4 and the valve body 6 fails, the grease injection channel is opened, the grease injection gun is hung on the grease injection port on the valve core 4 to inject grease under pressure, the grease enters the valve body cavity through the grease injection hole 10, the sealing steel ball 7 on the second conical surface of the valve body 6 is pushed open, and then the grease injection is completed. And after the grease injection is finished, the thread between the valve core 4 and the valve body 6 is screwed to finish the first sealing, and the steel ball 7 automatically resets under the elastic action of the spring 9 and is in close contact with the conical surface four to form sealing so as to form the second sealing. After finishing the sealing after the two grease injection processes, taking down the grease injection gun, screwing the thread between the valve cap 3 and the valve core 4, and finally sealing the end cap of the valve cap 3 and the conical surface of the valve core 4 to protect the cleanness of a grease injection channel.
According to the technical scheme provided by the utility model, the utility model discloses following beneficial effect has:
the utility model provides a one-way fat valve of annotating of dual seal, it easily adopts integrated configuration such as valve cap, end cap, valve body, case, steel ball after annotating the fat, carries out dual seal to the device, increases sealed reliability, is favorable to improving the security, prolongs the life of apparatus.
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 one-way notes fat valve of double seal, its characterized in that, includes end cap (1), case (4) and valve body (6), the upper end threaded connection of case (4) has valve cap (3), it has first through-hole to cut on valve cap (3), be provided with end cap (1) in the first through-hole, and the both ends of end cap (1) all run through first through-hole, the upper end of end cap (1) cup joints circlip (2), and circlip (2) are located the upside of valve cap (3), the lower extreme of end cap (1) is provided with conical surface one, be provided with conical surface two on case (4), conical surface one and conical surface two in close contact with, it has notes fat hole (10) to cut in case (4), it has the seal groove to cut on case (4), be provided with O type circle (5) in the seal groove, the lower extreme threaded connection of case (4) has valve body (6), the valve body (6) is provided with a third conical surface and a fourth conical surface which are in close contact, and the valve body (6) is internally provided with a steel ball (7), a guide sleeve (8) and a spring (9).
2. A double sealing one-way grease injection valve according to claim 1, characterized in that the grease injection hole (10) forms an angle of 45 ° with the vertical.
3. A double-sealing one-way grease injection valve according to claim 1, characterized in that the lower end of the valve core (4) is tapered by 60 °.
4. The double-sealing one-way grease injection valve according to claim 1, wherein one end of the steel ball (7) is in contact with the second conical surface on the valve body (6), and the other end of the steel ball is in contact with the guide sleeve (8) under the action of the spring.
5. A double-sealing one-way grease injection valve according to claim 1, characterized in that the circlip (2) can fixedly connect the plug (1) to the bonnet (3).
6. A double-sealing one-way grease injection valve according to claim 1, characterized in that the lower end of the steel ball (7) is provided with a guide sleeve (8), the lower end of the guide sleeve (8) is provided with a spring (9), and the spring (9) directly acts on the guide sleeve (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921988765.5U CN211315733U (en) | 2019-11-18 | 2019-11-18 | Double-sealing one-way grease injection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921988765.5U CN211315733U (en) | 2019-11-18 | 2019-11-18 | Double-sealing one-way grease injection valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211315733U true CN211315733U (en) | 2020-08-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921988765.5U Expired - Fee Related CN211315733U (en) | 2019-11-18 | 2019-11-18 | Double-sealing one-way grease injection valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211315733U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115479202A (en) * | 2021-06-16 | 2022-12-16 | 中国石油天然气股份有限公司 | Grease injection nozzle, detachable grease injection nozzle assembly and detaching method |
-
2019
- 2019-11-18 CN CN201921988765.5U patent/CN211315733U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115479202A (en) * | 2021-06-16 | 2022-12-16 | 中国石油天然气股份有限公司 | Grease injection nozzle, detachable grease injection nozzle assembly and detaching method |
| CN115479202B (en) * | 2021-06-16 | 2023-11-21 | 中国石油天然气股份有限公司 | Grease injection nozzle, detachable grease injection nozzle assembly and disassembly method |
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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: 20200821 Termination date: 20211118 |
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| CF01 | Termination of patent right due to non-payment of annual fee |