CN206917971U - Relief valve - Google Patents
Relief valve Download PDFInfo
- Publication number
- CN206917971U CN206917971U CN201720702416.7U CN201720702416U CN206917971U CN 206917971 U CN206917971 U CN 206917971U CN 201720702416 U CN201720702416 U CN 201720702416U CN 206917971 U CN206917971 U CN 206917971U
- Authority
- CN
- China
- Prior art keywords
- bearing pin
- piston
- elastic component
- relief valve
- base
- 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.)
- Active
Links
Landscapes
- Safety Valves (AREA)
Abstract
The utility model discloses a kind of relief valve, the relief valve is arranged on the piston in piston cylinder, valve rod including base and under base, the base is provided with the first elastic component, the first elastic component upper end is connected with the first bearing pin, first bearing pin is provided with the second bearing pin, the second elastic component is connected between first bearing pin and the second bearing pin, the upper end of second bearing pin stretches out in the surface of piston, the length that second bearing pin stretches out in piston face is piston pressure release stroke, and the valve stem part stretches out in base.By the above-mentioned means, the utility model relief valve, using the teaching of the invention it is possible to provide longer pressure release stroke, it is simple in construction, securely and reliably.
Description
Technical field
Technical field of hydraulic pressure is the utility model is related to, more particularly to a kind of relief valve.
Background technology
On high-tension side pressure release when pressure valve can be used for piston movement, so as to realize buffering.Valve is installed on piston, valve rod is higher by
Piston end surface 1.2mm, in piston movement 1.2mm last to stroke, valve stem contacts end cap, compression, the pressure release of piston higher side.By
Size etc. limits, and the pressure release stroke of relief valve standard component only has 1.2mm.In some cases（As movement velocity is fast）It is, it is necessary to longer
Stroke, i.e. hydraulic oil pressure energy shifts to an earlier date pressure release.
The content of the invention
The utility model is mainly solving the technical problems that provide a kind of relief valve, using the teaching of the invention it is possible to provide longer pressure release stroke,
It is simple in construction, securely and reliably.
In order to solve the above technical problems, the technical scheme that the utility model uses is：A kind of relief valve is provided, it is described
Relief valve is arranged on the piston in piston cylinder, including base and the valve rod under base, and the base is provided with first
Elastic component, the first elastic component upper end are connected with the first bearing pin, and first bearing pin is provided with the second bearing pin, first pin
The second elastic component is connected between axle and the second bearing pin, the upper end of second bearing pin stretches out in the surface of piston, the second bearing pin
The length for stretching out in piston face is piston pressure release stroke, and the valve stem part stretches out in base.
In one preferred embodiment of the utility model, the piston driving relief valve motion makes its second bearing pin touch end
Lid, first compressing the first elastic component makes the first bearing pin be in contact with base, rear to compress the second elastic component until the second bearing pin is higher by work
The part of plug is fully compressed.
In one preferred embodiment of the utility model, the rigidity of first elastic component is less than the firm of the second elastic component
Degree.
In one preferred embodiment of the utility model, first elastic component is face of cylinder helical spring, described second
Elastic component is disc spring.
In one preferred embodiment of the utility model, the length that second bearing pin stretches out piston face is more than or equal to
5mm。
In one preferred embodiment of the utility model, the length that the valve rod stretches out in base is 1.2mm.
The beneficial effects of the utility model are：Relief valve of the present utility model, using the teaching of the invention it is possible to provide longer pressure release stroke, structure
Simply, securely and reliably.
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Other accompanying drawings are obtained, wherein：
Fig. 1 is the structural representation of the preferred embodiment of relief valve one of the present utility model；
Fig. 2 is Fig. 1 partial structural diagram；
The mark of each part is as follows in accompanying drawing：1st, relief valve, 11, base, 12, valve rod, the 13, first elastic component, 14, first
Bearing pin, the 15, second elastic component, the 16, second bearing pin, 2, piston cylinder, 21, piston, 22, end cap, 23, low-pressure side, 24, high-pressure side.
Embodiment
The technical scheme in the embodiment of the utility model will be clearly and completely described below, it is clear that described
Embodiment is only part of the embodiment of the present utility model, rather than whole embodiments.Based on the implementation in the utility model
Example, all other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, is belonged to
The scope of the utility model protection.
Referring to Fig. 1, a kind of relief valve, relief valve 1 is arranged on the piston 21 in piston cylinder 2, including base 11 and peace
Valve rod 12 under base 1, base 1 are provided with the first elastic component 13, and the upper end of the first elastic component 13 is connected with the first bearing pin 14,
First bearing pin 14 is provided with the second bearing pin 15, is connected with the second elastic component 16 between the first bearing pin 14 and the second bearing pin 15, and second
The upper end of bearing pin 15 stretches out in the surface of piston 21, and the length that the second bearing pin 15 stretches out in the surface of piston 21 is piston pressure release row
Journey, and the part of valve rod 12 stretches out in base 1.First elastic component 13 is supported on base 11, support other parts, prevent from rocking and
Low pressure is impacted, and causes relief valve pressure release, and gap is left in the first bearing pin 14 and the end face of valve rod 12, prevents from producing valve rod 12 during installation
Extruding.
In addition, piston 21 drives the motion of relief valve 1 its second bearing pin 16 is touched end cap 22, the first elastic component 13 is first compressed
The first bearing pin 14 is set to be in contact with base 2, the part that rear the second elastic component of compression 15 is higher by piston up to the second bearing pin 16 is complete
Full compression.
In addition, the rigidity of the first elastic component 13 is less than the rigidity of the second elastic component 15.
In addition, the first elastic component 13 is face of cylinder helical spring, the second elastic component 15 is disc spring.
In addition, the length that the second bearing pin 14 stretches out the surface of piston 21 is more than or equal to 5mm.
In addition, the length that valve rod 12 stretches out in base 11 is 1.2mm.
Relief valve concrete operating principle of the present utility model is as follows：Piston 21 moves from low-pressure side 23 to high-pressure side 24, living
The promotion relief valve 1 of plug 21 moves, the upper-end contact of the second bearing pin 16 to end cap 22, and second elastic 15 rigidity are sufficiently large, the first bullet
Property part 13 first compressed, valve rod 12 is pressed simultaneously, and valve starts pressure release, and the 1.2mm that valve rod 12 is higher by base has been compressed, when first
After bearing pin 14 touches base 11, the second elastic component 15 starts to be compressed, until the upper surface of piston 21 contacts with cylinder cover, the
Two bearing pins 16 are compressed completely above the 5mm of piston 21, and now hydraulic valve remains pressure release.
It is different from prior art, relief valve of the present utility model, using the teaching of the invention it is possible to provide longer pressure release stroke, simple in construction, peace
It is complete reliable.
Embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model, it is every
The equivalent structure or equivalent flow conversion made using the utility model description, or directly or indirectly it is used in other phases
The technical field of pass, similarly it is included in scope of patent protection of the present utility model.
Claims (6)
1. a kind of relief valve, the relief valve is arranged on the piston in piston cylinder, it is characterised in that including base and is arranged on
Valve rod under base, the base are provided with the first elastic component, and the first elastic component upper end is connected with the first bearing pin, and described
One bearing pin is provided with the second bearing pin, and the second elastic component, second bearing pin are connected between first bearing pin and the second bearing pin
Upper end stretch out in the surface of piston, the length that the second bearing pin stretches out in piston face is piston pressure release stroke, the valve stem
Divide and stretch out in base.
2. relief valve according to claim 1, it is characterised in that the piston driving relief valve motion makes its second bearing pin
End cap is touched, first compressing the first elastic component makes the first bearing pin be in contact with base, rear to compress the second elastic component until the second bearing pin
The part for being higher by piston is fully compressed.
3. relief valve according to claim 2, it is characterised in that the rigidity of first elastic component is less than the second elastic component
Rigidity.
4. relief valve according to claim 3, it is characterised in that first elastic component is face of cylinder helical spring, institute
It is disc spring to state the second elastic component.
5. according to any described relief valves of claim 1-4, it is characterised in that second bearing pin stretches out the length of piston face
Degree is more than or equal to 5mm.
6. relief valve according to claim 5, it is characterised in that the length that the valve rod stretches out in base is 1.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720702416.7U CN206917971U (en) | 2017-06-16 | 2017-06-16 | Relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720702416.7U CN206917971U (en) | 2017-06-16 | 2017-06-16 | Relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206917971U true CN206917971U (en) | 2018-01-23 |
Family
ID=61321596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720702416.7U Active CN206917971U (en) | 2017-06-16 | 2017-06-16 | Relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206917971U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112696397A (en) * | 2020-12-22 | 2021-04-23 | 张燕 | Buffer hydraulic oil cylinder |
-
2017
- 2017-06-16 CN CN201720702416.7U patent/CN206917971U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112696397A (en) * | 2020-12-22 | 2021-04-23 | 张燕 | Buffer hydraulic oil cylinder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206917971U (en) | Relief valve | |
| CN207296260U (en) | A kind of environmentally friendly face brick for building | |
| CN206084322U (en) | Bayonet lock assembly fixture | |
| CN206092571U (en) | Damping type pneumatic cylinder | |
| CN204200945U (en) | A kind of vibration damper | |
| CN103410805B (en) | Floating type unidirectional pair of bar cylinder | |
| CN204140754U (en) | Hydraulic buffer | |
| CN203374813U (en) | Mechanical sealing device under grain oil condition | |
| CN204025226U (en) | A kind of spring reverse motion for piston mechanism | |
| CN204140751U (en) | A kind of hydraulic buffer of Novel shaft seal structure | |
| CN204457497U (en) | A kind of sucker rod power slip structure of improvement | |
| CN203297474U (en) | Piston structure of shock absorber | |
| CN205386615U (en) | Reinforcing bar device of flare -outing for construction machinery | |
| CN203868216U (en) | Damper | |
| CN204200944U (en) | A kind of constitutionally stable automobile absorber | |
| CN203560441U (en) | Bidirectional combined sealing ring | |
| CN204188455U (en) | A kind of fixture for testing metallic elastic component compression property | |
| CN201367480Y (en) | Compressing apparatus of discharge hole of feeding device | |
| CN202669044U (en) | Buffering structure for hydraulic machine | |
| CN202370790U (en) | Piston assembly of air pump | |
| CN102619920A (en) | Unpowered hydraulic one-way buffer device | |
| CN208565395U (en) | New hub-and-spoke configuration spring | |
| CN104226876A (en) | Hydraulic damping device | |
| CN201842610U (en) | Hydraulic jack | |
| CN202971415U (en) | Two-gear buffer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |