CN206988489U

CN206988489U - A kind of safety valve

Info

Publication number: CN206988489U
Application number: CN201720895967.XU
Authority: CN
Inventors: 王宝敏
Original assignee: Wuxi Institute of Commerce
Current assignee: Wuxi Institute of Commerce
Priority date: 2017-07-17
Filing date: 2017-07-17
Publication date: 2018-02-09
Anticipated expiration: 2027-07-17

Abstract

The utility model discloses a kind of safety valve, including：Valve chest with entrance and exit and for stopping the film fluidly connected between the entrance and the outlet, also include spring housing, valve rod, spring, integrated buffer and control wheel, the control wheel is connected to the valve chest, the integrated buffer and the spring housing form the continuous guiding piece of spring and valve rod, the integrated buffer has the end face for suitably forming contact surface, when safety valve is in a fully open position, the end face is bonded with the film.Spring members are removed in the safety valve that the technical program provides, remaining part can be plastic material, solve accumulation of impurities and leakage of the valve in application.

Description

A kind of safety valve

Technical field

It the utility model is related to a kind of hydraulic valve, and in particular to a kind of safety valve.

Background technology

Now be commonly used to safety valve brass have some it is notable the shortcomings that, brass to calcareous/lime precipitation thing very It is sensitive.It can all be found in almost all of water calcareous, over time, they will be accumulated in valve part.Brass It is easy to adsorb this accumulation herein with other metals and influences valve normal work.

Experience have also shown that brass rod is riveted on wheel, there may be metal fillings.These metal fillings may reach diaphragm And damage, so that valve leak.

Utility model content

1st, technical problems to be solved

The defects of being brought for valve applications metal material existing for solution prior art, the utility model provide a kind of safety Valve.

2nd, technical scheme

The purpose of this utility model is mainly realized by following technical scheme.

A kind of safety valve of the present utility model, including：Valve chest with entrance and exit and for stopping the entrance The film fluidly connected between the outlet, in addition to spring housing, valve rod, spring, integrated buffer and control wheel, it is described Control wheel is connected to the valve chest, and the integrated buffer and the spring housing form the continuous guiding of spring and valve rod Part, the integrated buffer have the end face for suitably forming contact surface, when safety valve is in a fully open position, the end Face is bonded with the film.

Further, the valve rod is made of plastics and with the fixture for being used to be connected to the control wheel.

Further, the coniform shape that the fixture has for the valve rod in the end away from the film, institute Coniform shape is stated with the shoulder towards the film.

Further, the control wheel includes being suitable to catch the coniform shape and against multiple pawls of the shoulder, And the valve rod has the thin shape part from the shoulder towards the film, the diameter of the thin shape part is substantially equal to pawl Between gap.

Further, the pawl has the conical surface towards the coniform shape of the valve rod.

3rd, beneficial effect：

Compared with prior art, a kind of beneficial effect of safety valve of the present utility model is：

Spring members are removed in the safety valve, remaining part can be plastic material, and the impurity for solving valve in application gathers Collection and leakage.

Brief description of the drawings

Fig. 1 is a kind of open mode structural representation of safety valve of the utility model preferred embodiment.

Fig. 2 is a kind of closure state structural representation of safety valve of the utility model preferred embodiment.

In figure：Valve rod 1, spring 2, integrate buffer 3, spring housing 4, wheel 5, pawl 6, film 7, valve chest 8.

Embodiment

Hereinafter, specific embodiment of the utility model is described in detail refer to the attached drawing, it is detailed according to these Thin description, one of ordinary skill in the art can implement the utility model it can be clearly understood that the utility model.Do not disobeying In the case of carrying on the back the utility model principle, the feature in each different embodiment can be combined to obtain new embodiment party Formula, or some features in some embodiments are substituted, obtain other preferred embodiments.

Safety valve should prevent from gathering excessive pressure in tank by the way that liquid is opened and discharged with predetermined pressure.Work as pressure During again below VOP, valve will turn off.

Fig. 1,2 show a kind of safety valve formed according to the utility model preferred embodiment.Such as scheme a kind of safety valve, wrap Include：Valve chest 8 with entrance and exit and for stopping the film 7 fluidly connected between the entrance and the outlet, also The valve chest 8 is connected to including spring housing 4, valve rod 1, spring 2, integrated buffer 3 and control wheel 5, the control wheel 5, The integrated buffer 3 and the spring housing 4 form the continuous guiding piece of spring 2 and valve rod 1, and the integrated buffer 3 has There is the end face for suitably forming contact surface, when safety valve is in a fully open position, the end face is bonded with the film 7.

Further preferably, the valve rod 1 is made of plastics and with the fixation for being used to be connected to the control wheel 5 Part.

Further preferably, the fixture is the cone that the valve rod 1 has in the end away from the film 7 Shape, the coniform shape have the shoulder towards the film 7.

Further preferably, the control wheel 5 includes being suitable to catch the coniform shape and against the shoulder Multiple pawls 6, and the valve rod 1 has the thin shape part from the shoulder towards the film 7, the diameter base of the thin shape part The gap being equal in sheet between pawl 6.

Further preferably, the pawl 6 has the conical surface towards the coniform shape of the valve rod 1.

Although the utility model is described above by referring to specific embodiment, art technology people Member can be directed to the disclosed configuration of the utility model and details it should be appreciated that in the utility model principle disclosed and scope Make many modifications.The scope of protection of the utility model is determined by appended claim, and claim is intended to Whole modifications that the equivalent literal meaning of technical characteristic or scope are included in claim.

Claims

A kind of 1. safety valve, it is characterised in that including：Valve chest with entrance and exit and for stopping the entrance and institute State the film fluidly connected between outlet, in addition to spring housing, valve rod, spring, integrated buffer and control wheel, the control Wheel is connected to the valve chest, and the integrated buffer and the spring housing form the continuous guiding piece of spring and valve rod, institute State integrated buffer have suitably form contact surface end face, when safety valve is in a fully open position, the end face with The film fitting.
2. a kind of safety valve as claimed in claim 1, it is characterised in that the valve rod is made of plastics and with for joining It is connected to the fixture of the control wheel.
3. a kind of safety valve as claimed in claim 2, it is characterised in that the fixture is the valve rod away from the film The coniform shape that has of end, the coniform shape has the shoulder towards the film.
4. a kind of safety valve as claimed in claim 3, it is characterised in that the control wheel includes being suitable to catch the cone Shape and against multiple pawls of the shoulder, and the valve rod has the thin shape part from the shoulder towards the film, institute The diameter for stating thin shape part is substantially equal to gap between pawl.
5. a kind of safety valve as claimed in claim 4, it is characterised in that the pawl has the conical shape towards the valve rod The conical surface of shape.