CN203286086U

CN203286086U - Dual-layer valve cover regulating valve

Info

Publication number: CN203286086U
Application number: CN2013202702936U
Authority: CN
Inventors: 吴亚萍
Original assignee: ZHEJIANG YUANYAO VALVE INDUSTRY Co Ltd
Current assignee: ZHEJIANG YUANYAO VALVE INDUSTRY Co Ltd
Priority date: 2013-05-17
Filing date: 2013-05-17
Publication date: 2013-11-13
Anticipated expiration: 2023-05-17

Abstract

The utility model relates to the field of regulating valves, in particular to a dual-layer valve cover regulating valve. The dual-layer valve cover regulating valve comprises a rotating handle, an adjusting screw rod, a gland, an adjusting spring, a spring seat, a membrane, a valve core, a spring and a base, wherein the rotating handle, the adjusting screw rod, the gland, the adjusting spring, the spring seat, the membrane, the valve core, the spring and the base are arranged in sequence. The dual-layer valve cover regulating valve further comprises a lower layer valve cover arranged on the base and an upper layer valve cover capable of rotating relative to the lower layer valve cover. After the adoption of the structure, the membrane is protected better, and the service life of the regulating valve is prolonged.

Description

A kind of two layers of valve gap modulating valve

Technical field

The utility model relates to the modulating valve field, refers in particular to a kind of two layers of valve gap modulating valve.

Background technique

Reduction valve is an indispensable accessory of pneumatic control valve, and Main Function is the pressure of source of the gas is reduced pressure and be stabilized to a definite value, so that modulating valve can obtain stable source of the gas power, is used for regulating control.The service behaviour of modulating valve and life-span depend primarily on the sensitive diaphragm of valve inside; therefore will protect diaphragm in assembling, avoid diaphragm to be damaged, what former valve gap adopted is integral structure; its defect is; the workman when assembling, is clipped in due to diaphragm between the base of valve gap and valve, is easy to be squeezed; the base of valve gap and valve is with bolts simultaneously; diaphragm can be subject to very large torsion, destroys diaphragm, reduces the working life of modulating valve.

Therefore, the inventor makes further research this, develops a kind of two layers of valve gap modulating valve, and this case produces thus.

The model utility content

The purpose of this utility model is to provide a kind of two layers of valve gap modulating valve, has better protected diaphragm, has extended the working life of modulating valve.

To achieve these goals, the technical solution of the utility model is as follows:

A kind of two layers of valve gap modulating valve, comprise the handle with sleeve, adjusting screw rod, gland, Regulation spring, spring seat, diaphragm, spool, spring, the base that set gradually; Also comprise the lower floor's valve gap that is arranged on base, and with respect to the rotating upper strata of lower floor's valve gap valve gap.

Further, be threaded connection between described lower floor's valve gap and base.

Further, in described base, inner chamber is arranged, the base angle of inner chamber is circular-arc.

Further, described spool comprises valve rod and valve seat, and base position corresponding to described valve rod below offers aperture.

After adopting such scheme, the utility model compared with prior art, has the following advantages:

Reduced regulating the torsion of valve film, improved the service behaviour of modulating valve, extended the working life of modulating valve.

Description of drawings

Fig. 1 is schematic diagram of the present utility model;

Label declaration

Handle with sleeve 1, adjusting screw rod 2, gland 3, Regulation spring 4, spring seat 5, diaphragm 6, valve rod 7, valve seat 8, spring 9, base 10, upper strata valve gap 11, lower floor's valve gap 12, inner chamber 13, base angle 14, aperture 15.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is further described.

As shown in the figure, a kind of two layers of valve gap modulating valve that the utility model discloses, comprise the handle with sleeve 1, adjusting screw rod 2, gland 3, Regulation spring 4, spring seat 5, diaphragm 6, spool, spring, the base 10 that set gradually; Also comprise the lower floor's valve gap 12 that is arranged on base 10, and with respect to the rotating upper strata of lower floor's valve gap 12 valve gap 11.

The top connection of rotating handle 1 of adjusting screw rod 2, bottom withstands on gland 3, and gland connects Regulation spring 43 times, and the other end of Regulation spring 4 withstands in spring seat 5; Diaphragm 6 is arranged between spring seat 5 and upper strata valve gap 11, and upper strata valve gap 11 is for fixing, and upper strata valve gap 11 and lower floor's valve gap 12 can move and rotate each other, are provided with spring 9 in lower floor's valve gap 12, and layer valve gap 12 and spool clamp on the lower.Because upper strata valve gap 11 is non-rotary, diaphragm 6 just can not be subject to torsion like this, and better diaphragm 6 has been arrived in protection.

Inner chamber 13 is arranged in base 10, and the base angle 14 of inner chamber 13 is circular-arc; The residual probability of pollutant is descended greatly, extended the scrubbing cycle, also improve the Flow characteristics of gas simultaneously, reach good effect.

Spool under inner chamber 13 comprises valve rod 7 and valve seat 8, and base 10 places of valve rod 7 below correspondences offer aperture 15, and spring housing is combined in outside valve rod 7 and is stuck in aperture 15 tops, and valve rod 7 can move in aperture 15.For the workman has reduced assembly process one, reduce labor strength, can also save cost, also improved simultaneously the Flow characteristics of modulating valve.

The utility model is mainly used in clean energy resource power generation system modulating valve, guarantees that the safety of various gas pipelines conveyings, with reliable, can improve the service behaviour of modulating valve, extends the working life of modulating valve.

Above are only specific embodiment of the utility model, but design concept of the present utility model is not limited to this, allly utilizes this design to carry out the change of unsubstantiality to the utility model, all should belong to the behavior of invading the utility model protection domain.

Claims

1. two layers of valve gap modulating valve, is characterized in that: comprise the handle with sleeve, adjusting screw rod, gland, Regulation spring, spring seat, diaphragm, spool, spring, the base that set gradually; Also comprise the lower floor's valve gap that is arranged on base, and with respect to the rotating upper strata of lower floor's valve gap valve gap.

2. a kind of two layers of valve gap modulating valve according to claim 1, is characterized in that: be threaded connection between described lower floor valve gap and base.

3. a kind of two layers of valve gap modulating valve according to claim 1, it is characterized in that: in described base, inner chamber is arranged, the base angle of inner chamber is circular-arc.

4. a kind of two layers of valve gap modulating valve according to claim 1, it is characterized in that: described spool comprises valve rod and valve seat, base position corresponding to described valve rod below offers aperture.