CN107100915A - A kind of structure of relief valve - Google Patents
A kind of structure of relief valve Download PDFInfo
- Publication number
- CN107100915A CN107100915A CN201710465955.8A CN201710465955A CN107100915A CN 107100915 A CN107100915 A CN 107100915A CN 201710465955 A CN201710465955 A CN 201710465955A CN 107100915 A CN107100915 A CN 107100915A
- Authority
- CN
- China
- Prior art keywords
- spring
- valve element
- valve
- cavity
- piston
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
- F15B20/005—Leakage; Spillage; Hose burst
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a kind of structure of relief valve, including housing, valve element and valve seat, valve seat is arranged on below housing, is provided with housing in activity cavity and fixed cavity, activity cavity and is provided with spring, valve element is provided with fixed cavity, activity cavity is located at the lower section of fixed cavity, and connecting portion is provided between valve element and spring, is connected between valve element and spring by piston, the contact position of piston and spring is provided with catch, and sealing structure is provided between valve element and spring.The beneficial effects of the invention are as follows：It is simple in construction, it is easy for installation using simple operation, will be movable between valve element and spring by piston, with preferable circulation effect, range of regulation is big, override pressure is small, and pressure oscillation is small, is active in one's movements, overload capacity is big, noise is small, and the setting of catch can effectively improve the stability of overflow valve, the O-ring seal of addition, with preferable sealing effectiveness, the appearance of leakage phenomenon can be effectively prevented.
Description
Technical field
The present invention relates to a kind of valve, more particularly to a kind of structure of relief valve.
Background technology
Overflow valve is a kind of hydraulic pressure control valve, mainly plays level pressure overflow in hydraulic test, voltage stabilizing, system is unloaded
Lotus and safeguard protection effect.Overflow valve has the effect of level pressure overflow, voltage stabilizing, system unloaded, safeguard protection.One in practical application
As have：It is used as unloading valve, makees remote pressure regulating valve, makees high-low pressure multilevel control valve, make sequence valve, for producing back pressure（String is being returned
On oil circuit）.
But existing overflow valve is complicated in process, it is impossible to meet demand.
Therefore, to solve the above problems, special provide a kind of new technical scheme.
The content of the invention
The present invention provides a kind of structure of relief valve.
The technical solution adopted by the present invention is：
A kind of structure of relief valve, including housing, valve element and valve seat, the valve seat are arranged on below housing, are provided with the housing
It is provided with activity cavity and fixed cavity, the activity cavity in spring, the fixed cavity and is provided with valve element, the activity cavity
Connecting portion is provided between the lower section of fixed cavity, the valve element and spring, is connected between the valve element and spring by piston
Connect, the contact position of the piston and spring is provided with catch, and sealing structure is provided between the valve element and spring.
Further, the seat bottom portion is provided with drain tap.
Further, it is provided with hole on the valve element.
Further, the piston is in connecting portion.
Further, the connecting portion is arc-shaped.
Further, the sealing structure is O-ring seal.
The beneficial effects of the invention are as follows：It is simple in construction, it is easy for installation using simple operation, by piston by valve element and bullet
Movable between spring, with preferable circulation effect, range of regulation is big, and override pressure is small, and pressure oscillation is small, is active in one's movements, overload
Ability is big, and noise is small, and the setting of catch can effectively improve the stability of overflow valve, the O-ring seal of addition, with preferable
Sealing effectiveness, can effectively prevent the appearance of leakage phenomenon.
Brief description of the drawings
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the structural representation of the present invention.
Wherein：1st, housing, 2, valve element, 3, valve seat, 4, activity cavity, 5, fixed cavity, 6, spring, 7, connecting portion, 8, living
Plug, 9, drain tap, 10, hole, 11, catch, 12, O-ring seal.
Embodiment
In order to deepen the understanding of the present invention, below in conjunction with embodiment and accompanying drawing, the invention will be further described, should
Embodiment is only used for explaining the present invention, does not constitute the restriction to protection scope of the present invention.
A kind of structure of relief valve as shown in Figure 1, including housing 1, valve element 2 and valve seat 3, valve seat 3 are arranged under housing 1
It is provided with side, housing 1 in activity cavity 4 and fixed cavity 5, activity cavity 4 and is provided with spring 6, valve element 2 is provided with fixed cavity 5,
Activity cavity 4 is located at the lower section of fixed cavity 5, and connecting portion 7 is provided between valve element 2 and spring 6, is passed through between valve element 2 and spring 6
Piston 8 is connected, and the contact position of piston 8 and spring 6 is provided with catch 11, and O-ring seal is provided between valve element 2 and spring 6
12, the bottom of valve seat 3, which is provided with drain tap 9, valve element 2, is provided with hole 10, and piston 8 is in connecting portion 7, and connecting portion 7 is arc-shaped.
The beneficial effects of the invention are as follows：It is simple in construction, it is easy for installation using simple operation, by piston by valve element and bullet
Movable between spring, with preferable circulation effect, range of regulation is big, and override pressure is small, and pressure oscillation is small, is active in one's movements, overload
Ability is big, and noise is small, and the setting of catch can effectively improve the stability of overflow valve, the O-ring seal of addition, with preferable
Sealing effectiveness, can effectively prevent the appearance of leakage phenomenon.
The above described is only a preferred embodiment of the present invention, being not the limit for making any other form to the present invention
System, and any modification made according to technical spirit of the invention or equivalent variations, still fall within model claimed of the invention
Enclose.
Claims (6)
1. a kind of structure of relief valve, it is characterised in that：Including housing, valve element and valve seat, the valve seat is arranged on below housing, institute
State to be provided with activity cavity and fixed cavity, the activity cavity in housing and be provided with spring, valve element is provided with the fixed cavity,
The activity cavity is located at the lower section of fixed cavity, is provided with connecting portion between the valve element and spring, the valve element and spring it
Between connected by piston, the contact position of the piston and spring is provided with catch, and sealing is provided between the valve element and spring
Structure.
2. a kind of structure of relief valve according to claim 1, it is characterised in that：The seat bottom portion is provided with drain tap.
3. a kind of structure of relief valve according to claim 1, it is characterised in that：Hole is provided with the valve element.
4. a kind of structure of relief valve according to claim 1, it is characterised in that：The piston is in connecting portion.
5. a kind of structure of relief valve according to claim 1, it is characterised in that：The connecting portion is arc-shaped.
6. a kind of structure of relief valve according to claim 1, it is characterised in that：The sealing structure is O-ring seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710465955.8A CN107100915A (en) | 2017-06-19 | 2017-06-19 | A kind of structure of relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710465955.8A CN107100915A (en) | 2017-06-19 | 2017-06-19 | A kind of structure of relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107100915A true CN107100915A (en) | 2017-08-29 |
Family
ID=59659454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710465955.8A Pending CN107100915A (en) | 2017-06-19 | 2017-06-19 | A kind of structure of relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107100915A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5285813A (en) * | 1990-02-22 | 1994-02-15 | Ingenieurtechnik Gmbh & Co. Kg | Pressure limiting valve with stable spring pad |
| CN202252194U (en) * | 2011-09-13 | 2012-05-30 | 龙工（上海）桥箱有限公司 | Overflow valve for main control valve of excavator |
| CN203856792U (en) * | 2014-05-26 | 2014-10-01 | 圣邦集团有限公司 | Deflector type shock-absorption relief valve |
| CN204312799U (en) * | 2014-11-18 | 2015-05-06 | 上海立新液压有限公司 | A kind of plug-in overflow valve |
| CN204387418U (en) * | 2014-11-20 | 2015-06-10 | 上海立新液压有限公司 | A kind of direct acting relief valve |
| CN205026166U (en) * | 2015-09-29 | 2016-02-10 | 浙江华益精密机械股份有限公司 | Bidirectional relief valve |
-
2017
- 2017-06-19 CN CN201710465955.8A patent/CN107100915A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5285813A (en) * | 1990-02-22 | 1994-02-15 | Ingenieurtechnik Gmbh & Co. Kg | Pressure limiting valve with stable spring pad |
| CN202252194U (en) * | 2011-09-13 | 2012-05-30 | 龙工（上海）桥箱有限公司 | Overflow valve for main control valve of excavator |
| CN203856792U (en) * | 2014-05-26 | 2014-10-01 | 圣邦集团有限公司 | Deflector type shock-absorption relief valve |
| CN204312799U (en) * | 2014-11-18 | 2015-05-06 | 上海立新液压有限公司 | A kind of plug-in overflow valve |
| CN204387418U (en) * | 2014-11-20 | 2015-06-10 | 上海立新液压有限公司 | A kind of direct acting relief valve |
| CN205026166U (en) * | 2015-09-29 | 2016-02-10 | 浙江华益精密机械股份有限公司 | Bidirectional relief valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170829 |