CN203560528U - Unloading valve additionally provided with function of safety valve - Google Patents
Unloading valve additionally provided with function of safety valve Download PDFInfo
- Publication number
- CN203560528U CN203560528U CN201320484143.5U CN201320484143U CN203560528U CN 203560528 U CN203560528 U CN 203560528U CN 201320484143 U CN201320484143 U CN 201320484143U CN 203560528 U CN203560528 U CN 203560528U
- Authority
- CN
- China
- Prior art keywords
- valve
- spring
- safety
- core base
- unloading
- 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 - Lifetime
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Abstract
The utility model discloses an unloading valve additionally provided with a function of a safety valve. The unloading valve comprises a valve body, a valve core of an unloading valve, a valve core base, a spring, a valve seat pressing shelf, a valve seat pressing frame, an adjusting bolt, a valve core and a spring base. The valve seat pressing frame of a first oil way of the unloading valve is connected with the valve seat pressing shelf of a second oil way of the safety valve in series into the valve body. The valve core of the unloading valve and the valve core base are arranged close to the valve core base along the pressing direction of the spring. One side, relative to the valve core and the valve core base, is provided with a spring adjusting bolt. The valve core of a safety valve side is arranged close to the valve core base along the pressing direction of the spring. One side, opposite to the valve core and the valve core base, is provided with the spring base and another spring adjusting bolt. By adjusting the spring adjusting bolt, pressure of the first oil way of the unloading valve is arranged lower than pressure of the second oil way of the safety valve. When pressure of the first oil way of the unloading valve is overloaded, overloaded pressure of the first oil way of the unloading valve is released by the second oil way of the safety valve which is connected with the first oil way of the unloading valve in series. The unloading valve additionally provided with the function of the safety valve has following beneficial effects: the safety valve and a pressure relief valve are integrated so as to give a higher priority to protection of oil ways; and when the pressure relief valve is out of order, the oil ways are automatically protected so that safety of operation is improved.
Description
Technical field
The utility model relates to a kind of feather valve, relates in particular to a kind of feather valve of subsidiary safety valve function.
Background technique
The pressure-relief valve of currently available technology does not directly configure safety guarantee function, but indirectly another valve piece is installed with the form of safety valve, realizes safety guarantee function, and safety coefficient is low, and personal safety is not ensured.
Safety valve is a kind of safety protection valve; its open-shut device is subject under External Force Acting in normally off; pressure medium in equipment or pipeline raises, and while surpassing specified value, automatically opens, and by discharge medium outside system, prevents that in pipeline or equipment, pressure medium surpasses specified value.Safety valve belongs to self-acting valve class, is mainly used on boiler, pressurized container and pipeline, and pilot pressure is no more than specified value, and personal safety and equipment have been moved to important protective action.
Summary of the invention
For the deficiency of prior art, the purpose of this utility model is to provide a kind of feather valve of simple in structure, a kind of subsidiary safety valve function that safety coefficient is high.
Realize the present utility model object technological scheme as follows:
The feather valve of subsidiary safety valve function, comprise: valve body, feather valve spool, valve core base, spring, valve seat pressure rack, valve seat pressure rack, adjusting bolt, spool, spring pedestal, the second oil circuit valve seat pressure rack substring of the valve seat pressure rack of the first oil circuit of described feather valve and safety valve is associated in a valve body.The spool of feather valve and valve core base are set to approach valve core base along the pressured direction of spring, in the relative side of spool and valve core base, are provided with spring adjusting bolt.
The spool of described safety valve side is set to approach valve core base along the pressured direction of spring.Spool arranges spring pedestal and spring adjusting bolt with a contrary side of valve core base, by the adjusting to spring adjusting bolt, and the second oil circuit by the pressure setting of the first oil circuit of feather valve lower than safety valve; When first oil circuit pressure when overload of feather valve, the second oil circuit of the safety valve by series connection discharges the overburden pressure of feather valve the first oil circuit.The utility model safety valve and pressure-relief valve are integrated, more priority protection oil circuit.When pressure-relief valve is malfunctioning, automatically protect oil circuit, improve the Security of operation.
accompanying drawing explanation
Fig. 1 is the utility model structural representation
Number in the figure explanation:
1-valve body 2-feather valve spool 3-valve core base A 4-spring A
The sub-6-valve seat of 5-valve seat pressure rack pressure rack 7-adjusting bolt 8-spool
9-spring B 10-valve core base B 11-adjusting bolt 12-spring pedestal
embodiment
How below in conjunction with accompanying drawing, further illustrate the utility model realizes:
As shown in Figure 1, the feather valve of subsidiary safety valve function, comprising: valve body, feather valve valve
Core, valve core base, spring, valve seat pressure rack, valve seat pressure rack, adjusting bolt, spool, spring pedestal, the valve seat pressure rack 6 of the first oil circuit of described feather valve is connected in a valve body 1 with the second oil circuit valve seat pressure rack 5 of safety valve simultaneously.Feather valve spool 2 and valve core base A3 are set to be toward or away from valve core base A3 along the pressured direction of spring A4, and the relative side at feather valve spool 2 and valve core base A3, is provided with spring adjusting bolt 7.
The spool 8 of described safety valve side is set to be toward or away from valve core base B10 along the pressured direction of spring B 9.A contrary side of spool 8 and spring B 9, is provided with spring pedestal 12 and spring adjusting bolt 11, by the adjusting to spring adjusting bolt 11, and the second oil circuit by the pressure setting of the first oil circuit of feather valve lower than safety valve; When first oil circuit pressure when overload of feather valve, the second oil circuit of the safety valve by series connection discharges the overburden pressure of feather valve the first oil circuit.
Claims (2)
1. attach the feather valve of safety valve function, comprise: valve body, feather valve spool, valve core base, spring, valve seat pressure rack, valve seat pressure rack, adjusting bolt, spool, spring pedestal, it is characterized in that: the second oil circuit valve seat pressure rack substring of the valve seat pressure rack of the first oil circuit of described feather valve and safety valve is associated in a valve body, the spool of feather valve and valve core base A are set to approach valve core base A along the pressured direction of spring A, in a relative side of spool and valve core base A, are provided with spring adjusting bolt.
2. the feather valve of subsidiary safety valve function according to claim 1, it is characterized in that: the spool of described safety valve side is set to approach valve core base B along the pressured direction of spring B, spool arranges spring pedestal and spring adjusting bolt with a contrary side of valve core base B, by the adjusting to spring adjusting bolt, the second oil circuit by the pressure setting of the first oil circuit of feather valve lower than safety valve; When first oil circuit pressure when overload of feather valve, the second oil circuit of the safety valve by series connection discharges the overburden pressure of feather valve the first oil circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320484143.5U CN203560528U (en) | 2013-08-09 | 2013-08-09 | Unloading valve additionally provided with function of safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320484143.5U CN203560528U (en) | 2013-08-09 | 2013-08-09 | Unloading valve additionally provided with function of safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203560528U true CN203560528U (en) | 2014-04-23 |
Family
ID=50510249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320484143.5U Expired - Lifetime CN203560528U (en) | 2013-08-09 | 2013-08-09 | Unloading valve additionally provided with function of safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203560528U (en) |
-
2013
- 2013-08-09 CN CN201320484143.5U patent/CN203560528U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140423 |
|
| CX01 | Expiry of patent term |