CN202851501U - Cylinder internally-arranged hydraulic control one-way valve structure - Google Patents
Cylinder internally-arranged hydraulic control one-way valve structure Download PDFInfo
- Publication number
- CN202851501U CN202851501U CN 201220412585 CN201220412585U CN202851501U CN 202851501 U CN202851501 U CN 202851501U CN 201220412585 CN201220412585 CN 201220412585 CN 201220412585 U CN201220412585 U CN 201220412585U CN 202851501 U CN202851501 U CN 202851501U
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- CN
- China
- Prior art keywords
- piston rod
- piston
- way valve
- valve core
- spring
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model relates to a cylinder internally-arranged hydraulic control one-way valve structure which comprises a cylinder, a piston rod, a positioning screw, a spring, a one-way spool, a wearing ring and a piston. The cylinder internally-arranged hydraulic control one-way valve structure is characterized in that one end of the piston rod is fixed with the piston in a threaded mode, an oil passing hole is arranged on the internal portion of the piston rod, an oil return hole is formed in the piston, and the wearing ring is arranged on the piston, the one-way spool is arranged on the piston rod, an oil outlet of the pass oil hole in the internal portion of the piston rod is located at a pressure groove of the one-way spool, a sealing slope is arranged on the one-way spool, the sealing slope contacts a wearing ring line, one end of the spring is arranged in a spring installing hole of the one-way spool, the other end of the spring leans on the positioning screw, and the positioning screw is arranged on the piston rod. The cylinder internally-arranged hydraulic control one-way valve structure has the advantages of being reasonable in design and good in sealing.
Description
Technical field
The utility model relates to the built-in fluid-control one-way valve arrangement of a kind of oil cylinder.
Background technique
As the oil cylinder of actuating device, structure is varied, and the energy-saving type oil cylinder is the trend of development in science and technology.The oil cylinder of built-in one-way valve also is a kind of energy-saving type oil cylinder, but the complex structure of one-way valve, high, the easy damage of difficulty of processing, inconvenient maintenance, and sealing is inadequate, easily produces leakage phenomenon.
The model utility content
Technical problem to be solved in the utility model is to overcome deficiency of the prior art and provide a kind of oil cylinder reasonable in design, good airproof performance built-in fluid-control one-way valve arrangement.
The technical scheme in the invention for solving the above technical problem is: the fluid-control one-way valve arrangement that this oil cylinder is built-in, comprise oil cylinder, piston rod, setscrew nut, spring, nonreturn valve core, wear ring and piston, it is characterized in that: described piston rod threaded one end is fixed with piston, piston rod inside is provided with an oil through, be provided with spill port on the piston, and wear ring is installed on the piston, nonreturn valve core is installed on the piston rod, the oil outlet of the inner oil through of piston rod is in the pressure groove of nonreturn valve core, be provided with a sealing inclined-plane on the nonreturn valve core, the sealing inclined-plane contacts with wear-resisting loop wire, spring one end is installed in the spring mounting hole of nonreturn valve core, the spring the other end leans against on the setscrew nut, and the setscrew nut screw thread is installed on the piston rod.
On the piston described in the utility model Cock screw is installed.
Wear ring material hardness described in the utility model is less than sealing inclined plane materiel matter hardness.
Between nonreturn valve core described in the utility model and the piston rod seal ring is installed.
Angle between sealing described in the utility model inclined-plane and the horizontal plane is 30 °～60 °.
The utility model compared with prior art has the following advantages: the utility model overall structure is simple, compact, good airproof performance, and the life-span is long, assembling is simple, easy to maintenance.Cock screw prevents piston work relax, and wear ring is installed on the piston, and the wear ring material requires relatively soft, generally adopts copper, aluminium etc.The seal ring Leakage prevention is installed between nonreturn valve core and the piston rod, and after making oil cylinder work, inside does not produce leakage, and the angle that wear ring contacts with the sealing inclined-plane of nonreturn valve core keeps acute angle, and namely wear ring contacts by line with the sealing inclined-plane of nonreturn valve core.The sealing inclined-plane requires heat treatment, makes it to have higher hardness.
Description of drawings
Structural representation when Fig. 1 is the utility model nonreturn valve core closure.
Fig. 2 is the utility model one-way valve structural representation when newly opening.
Embodiment
Referring to Fig. 1, the utility model comprises oil cylinder 1, piston rod 2, setscrew nut 3, spring 4, nonreturn valve core 5, wear ring 6 and piston 7, and piston rod 2 inside arrange an oil through 21, and piston 7 usefulness screw threads are installed on piston rod 2 one ends, and Cock screw 71 is installed, prevent that piston 7 is loosening.Be provided with spill port 72 on the piston 7, and on the piston 7 wear ring 6 be installed, wear ring 6 materials require relatively soft, such as copper, aluminium etc.Nonreturn valve core 5 is installed on the piston rod 2, needs to install seal ring 8 Leakage preventions between nonreturn valve core 5 and the piston rod 2.Oil outlet 22 on the piston rod 2 is in nonreturn valve core 5 pressure grooves.Be provided with a sealing inclined-plane 51 on the nonreturn valve core 5, sealing inclined-plane 51 requires heat treatment, and hardness is higher than wear ring 6, and the angle between sealing inclined-plane 51 and the horizontal plane is 30 °～60 °.Sealing inclined-plane 51 contact with wear ring 6, and after making oil cylinder work, inside does not produce leakage, wear ring 6 and the angle maintenance acute angle that seals inclined-plane 51 and contact, namely wear ring 6 with seal inclined-plane 51 and contact by line.Spring 4 one ends are installed on the spring mounting hole of nonreturn valve core 5, and spring 4 the other ends lean against on the setscrew nut 3, and setscrew nut 3 usefulness screw threads are installed on the piston rod 2.
Referring to Fig. 1, when oil cylinder 1 work, need one-way valve to seal, pressure oil is from the oil-feed of P1 chamber, and under the effect of pressure oil, wear ring 6 is close on sealing inclined-plane 51, both line contacts.Because two surface of contact hardness are different, therefore the contact acute angle of wear ring 6 can be according to the bevel angle oneself chamfering of nonreturn valve core 5, thereby become the inclined-plane that fits like a glove with nonreturn valve core 5 inclined-planes by the contact acute angle, play seal action, and increased the unit lifting surface area, therefore increased the working life of nonreturn valve core 5 and wear ring 6.Drive piston 7 motions at oil pressure, when the needs one-way valve opens, referring to Fig. 2, the P2 chamber oil-feed of pressure oil from the piston rod 2 is under the effect of oil pressure, be under pressure in nonreturn valve core 5 grooves, thereby nonreturn valve core 5 and wear ring 6 are broken away from, and near spring 4 compressions of setscrew nut 3, the inner A chamber of oil cylinder and B chamber are connected, namely two cavity pressures are the same, and oil cylinder piston can move freely under external force.When the P2 chamber does not have pressure oil, spring 4 bounce-backs of compression, nonreturn valve core 5 is mobile under spring-force driven dual, and nonreturn valve core 5 and wear ring 6 are resealed, and namely oil cylinder 1 interior A chamber and B chamber become again independent closed state.
Above content described in this specification only is to the explanation of the utility model structure example.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment; only otherwise depart from structure of the present utility model or surmount this scope as defined in the claims, all should belong to protection domain of the present utility model.
Claims (5)
1. fluid-control one-way valve arrangement that oil cylinder is built-in, comprise oil cylinder, piston rod, setscrew nut, spring, nonreturn valve core, wear ring and piston, it is characterized in that: described piston rod threaded one end is fixed with piston, piston rod inside is provided with an oil through, be provided with spill port on the piston, and wear ring is installed on the piston, nonreturn valve core is installed on the piston rod, the oil outlet of the inner oil through of piston rod is in the pressure groove of nonreturn valve core, be provided with a sealing inclined-plane on the nonreturn valve core, the sealing inclined-plane contacts with wear-resisting loop wire, spring one end is installed in the spring mounting hole of nonreturn valve core, the spring the other end leans against on the setscrew nut, and the setscrew nut screw thread is installed on the piston rod.
2. the built-in fluid-control one-way valve arrangement of oil cylinder according to claim 1 is characterized in that: on the described piston Cock screw is installed.
3. the built-in fluid-control one-way valve arrangement of oil cylinder according to claim 1, it is characterized in that: described wear ring material hardness is less than sealing inclined plane materiel matter hardness.
4. the built-in fluid-control one-way valve arrangement of oil cylinder according to claim 1 is characterized in that: between described nonreturn valve core and the piston rod seal ring is installed.
5. the built-in fluid-control one-way valve arrangement of oil cylinder according to claim 1, it is characterized in that: the angle between described sealing inclined-plane and the horizontal plane is 30 °～60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220412585 CN202851501U (en) | 2012-08-20 | 2012-08-20 | Cylinder internally-arranged hydraulic control one-way valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220412585 CN202851501U (en) | 2012-08-20 | 2012-08-20 | Cylinder internally-arranged hydraulic control one-way valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851501U true CN202851501U (en) | 2013-04-03 |
Family
ID=47982708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220412585 Withdrawn - After Issue CN202851501U (en) | 2012-08-20 | 2012-08-20 | Cylinder internally-arranged hydraulic control one-way valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202851501U (en) |
-
2012
- 2012-08-20 CN CN 201220412585 patent/CN202851501U/en not_active Withdrawn - After Issue
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130403 Effective date of abandoning: 20180408 |
|
| AV01 | Patent right actively abandoned |