CN202646212U - Double hydraulic control one-way valve - Google Patents
Double hydraulic control one-way valve Download PDFInfo
- Publication number
- CN202646212U CN202646212U CN 201220301126 CN201220301126U CN202646212U CN 202646212 U CN202646212 U CN 202646212U CN 201220301126 CN201220301126 CN 201220301126 CN 201220301126 U CN201220301126 U CN 201220301126U CN 202646212 U CN202646212 U CN 202646212U
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- CN
- China
- Prior art keywords
- valve
- liquid passage
- flow liquid
- cone
- valve body
- 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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Abstract
The utility model provides a double hydraulic control one-way valve which comprises a valve body. Valve cavities are arranged on the left side and the right side of the valve body. Cone valves, springs, end caps are arranged in the valve cavities. A push rod is arranged in the valve body between the two cone valves. Four fluid channels are arranged in the valve cavity. A sealing element group is arranged on one cone valve close to the push rod. Due to the fact that connecting threads of the fluid channels and hydraulic fluid ports of the double hydraulic control one-way valve are changed into inch pipe threads which are widely used in a market, great convenience is brought for maintenance; and O-shaped rings and plastic retainer rings are used in the seal element group, accordingly service life is significantly improved, and production cost is reduced.
Description
Technical field
The utility model relates to the hydraulic system technical field, especially relates to a kind of dual hydraulic control one-way valve.
Background technique
Dual hydraulic control one-way valve claims again bidirectional hydraulic lock, is applied in the fields such as engineering machinery, boats and ships and mine.Hydraulic lock is two Pilot operated check valves and uses together, usually be used in load-bearing oil hydraulic cylinder or the motor oil circuit, be used for preventing that oil hydraulic cylinder or motor from gliding voluntarily under the weight effect, when needing action, need to another road fuel feeding, open one-way valve by the internal control oil circuit oil circuit is connected, oil hydraulic cylinder or motor could move.If so in the situation that does not have hydraulic lock on the loop, oil cylinder or motor are in when not working, reason owing to weight self, add control valve itself and exist internal leakage, the position at oil hydraulic cylinder or oil hydraulic motor place is remained unchanged, so hydraulic lock has been arranged on the loop, in the time of can allowing oil hydraulic cylinder or oil hydraulic motor not work, has been in locking state.
Dual hydraulic control one-way valve of the prior art exists its flow liquid passage and adopts metric thread to be connected with the hydraulic fluid port connecting thread, and metric thread connects to maintenance makes troubles; Sealing means is the combination mat sealing simultaneously, and this combination mat is short working life, needs frequent, can cause the loss of hydraulic oil, increases maintenance expenses, reduces working efficiency.
Summary of the invention
The purpose of this utility model provides a kind of can increasing work efficiency, and reduces cost, improves the interchangeability of product, and the assurance usability is stablized dual hydraulic control one-way valve.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of dual hydraulic control one-way valve, comprise valve body, the described valve body left and right sides arranges valve pocket, in the described valve pocket cone valve is set, spring, plug, in the valve body between described two cone valves push rod is set, be provided with A flow liquid passage in the valve body on cone valve top, described left side, be provided with A1 flow liquid passage in the valve body of cone valve bottom, described left side, described left side cone valve control A flow liquid passage, the cut-off of A1 flow liquid passage and unimpeded, be provided with B flow liquid passage in the valve body on cone valve top, described right side, be provided with B2 flow liquid passage in the valve body of cone valve bottom, described right side, described right side cone valve control B flow liquid passage, the cut-off of B2 flow liquid passage and unimpeded, it is characterized in that: described cone valve is provided with the Sealing group, described A flow liquid passage at the cone valve of a side of close push rod, A1 flow liquid passage, B flow liquid passage, the hydraulic fluid port screw thread of B2 flow liquid passage is pipe thread made in Great Britain.
Described Sealing group comprises plastics back-up ring and an O type circle that is arranged near on the cone valve of a side of push rod.
Described push rod is provided with the 2nd O type circle.
Described plug is provided with the 3rd O type circle.
The beneficial effects of the utility model: owing to adopt flow liquid passage and hydraulic fluid port connecting thread at dual hydraulic control one-way valve to change pipe thread made in Great Britain into; It is more extensive that inch screw thread is used in market, adopts the Sealing group of O type circle and plastics back-up ring to the maintenance sealing means that brings great convenience, and can obviously improve working life, reduces production costs.
Below with reference to drawings and Examples, the utility model is described in detail.
Description of drawings
Fig. 1 is organigram of the present utility model.
Among the figure: 1. valve body, 2. valve pocket, 3. cone valve, 4. spring, 5. plug, 6. push rod, 7. A flow liquid passage, 8. A1 flow liquid passage, 9. B flow liquid passage, 10. B2 flow liquid passage, 11. hydraulic fluid port screw threads, 12. plastics back-up rings, 13. the one O type circles, 14. the 2nd O type circles, 15. the 3rd O type circles.
Embodiment
Embodiment, as shown in Figure 1, a kind of dual hydraulic control one-way valve, comprise valve body 1, described valve body 1 left and right sides arranges valve pocket 2, in the described valve pocket 2 cone valve 3 is set, spring 4, plug 5, in the valve body 1 between described two cone valves push rod 6 is set, be provided with A flow liquid passage 7 in the valve body 1 on cone valve top, described left side, be provided with A1 flow liquid passage 8 in the valve body 1 of cone valve bottom, described left side, described left side cone valve control A flow liquid passage 7, the cut-off of A1 flow liquid passage 8 and unimpeded, be provided with B flow liquid passage 9 in the valve body 1 on cone valve top, described right side, be provided with B2 flow liquid path 10 in the valve body 1 of cone valve bottom, described right side, described right side cone valve control B flow liquid passage 9, the cut-off of B2 flow liquid path 10 and unimpeded, it is characterized in that: described cone valve 3 is provided with the Sealing group, described A flow liquid passage 7 at the cone valve of a side of close push rod 6, A1 flow liquid passage 8, B flow liquid passage 9, the hydraulic fluid port screw thread 11 of B2 flow liquid path 10 is pipe thread made in Great Britain.
Described Sealing group comprises plastics back-up ring 12 and an O type circle 13 that is arranged near on the cone valve 3 of a side of push rod 6.
Described push rod 6 is provided with the 2nd O type circle 14.
Described plug 5 is provided with the 3rd O type circle 15.
A described O type circle 13, the 2nd O type circle 14, the 3rd O type circle 15 materials are that its hardness of nitrile butadiene rubber is NRB90, and temperature resistant range is :-30 ℃ to+150 ℃,
Above embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that the common engineers and technicians in related domain make the technical solution of the utility model all should fall in the definite protection domain of claims of the present utility model.
The utility model does not relate to partly all, and the prior art that maybe can adopt same as the prior art is realized.
Claims (4)
1. dual hydraulic control one-way valve, comprise valve body, the described valve body left and right sides arranges valve pocket, in the described valve pocket cone valve is set, spring, plug, in the valve body between described two cone valves push rod is set, be provided with A flow liquid passage in the valve body on cone valve top, described left side, be provided with A1 flow liquid passage in the valve body of cone valve bottom, described left side, described left side cone valve control A flow liquid passage, the cut-off of A1 flow liquid passage and unimpeded, be provided with B flow liquid passage in the valve body on cone valve top, described right side, be provided with B2 flow liquid passage in the valve body of cone valve bottom, described right side, described right side cone valve control B flow liquid passage, the cut-off of B2 flow liquid passage and unimpeded, it is characterized in that: described cone valve is provided with the Sealing group, described A flow liquid passage at the cone valve of a side of close push rod, A1 flow liquid passage, B flow liquid passage, the hydraulic fluid port screw thread of B2 flow liquid passage is pipe thread made in Great Britain.
2. dual hydraulic control one-way valve according to claim 1 is characterized in that: described Sealing group comprises plastics back-up ring and an O type circle that is arranged near on the cone valve of a side of push rod.
3. described dual hydraulic control one-way valve according to claim 1, it is characterized in that: described push rod is provided with the 2nd O type circle.
4. described dual hydraulic control one-way valve according to claim 1, it is characterized in that: described plug is provided with the 3rd O type circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220301126 CN202646212U (en) | 2012-06-26 | 2012-06-26 | Double hydraulic control one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220301126 CN202646212U (en) | 2012-06-26 | 2012-06-26 | Double hydraulic control one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202646212U true CN202646212U (en) | 2013-01-02 |
Family
ID=47415328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220301126 Expired - Fee Related CN202646212U (en) | 2012-06-26 | 2012-06-26 | Double hydraulic control one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202646212U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382267A (en) * | 2016-12-14 | 2017-02-08 | 湘潭大学 | Hydraulic lock |
-
2012
- 2012-06-26 CN CN 201220301126 patent/CN202646212U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382267A (en) * | 2016-12-14 | 2017-02-08 | 湘潭大学 | Hydraulic lock |
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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: 20130102 Termination date: 20130626 |