CN206175671U

CN206175671U - Stop valve

Info

Publication number: CN206175671U
Application number: CN201621135526.1U
Authority: CN
Inventors: 陈水灵
Original assignee: Shanghai Lianggong Valve Factory Co Ltd
Current assignee: Shanghai Lianggong Valve Factory Co Ltd
Priority date: 2016-10-18
Filing date: 2016-10-18
Publication date: 2017-05-17
Anticipated expiration: 2026-10-18

Abstract

The utility model provides a stop valve, including the valve body, the valve body is inside to be provided with the valve pocket, and stop valve still includes a valve clack, and in the valve pocket was arranged in to the valve clack, the valve clack included a guide part, and pressure relief groove has been seted up to the guide part periphery, and pressure relief groove is worn to establish to the guide part lower surface by the guide part upper surface. This stop valve simple structure, processing convenience, simple to use can realize automatic pressure release, prevent that the valve from suppressing the pressure, phenomenons such as difficulty, damage part are died, are opened to the card.

Description

Stop valve

Technical field

The utility model is related to a kind of stop valve.

Background technology

In the prior art, traditional stop valve body is by valve pocket and flap external diameter positioning and is oriented to, and is to ensure axiality, it Between using gap coordinate, when valve opening and closing, pressure medium cannot quick release, particularly repid cut-off valve in valve pocket (such as HTHP pneumatic stopping valve, opening and closing time is exceedingly fast, general 2~3 seconds) easily makes middle chamber portion pressure anomaly boost, suppress it is dead, Difficulty is opened and closed, or even damages the phenomenons such as part.

Utility model content

The technical problems to be solved in the utility model be in order to overcome prior art in valve build the pressure, it is stuck, open difficult, Damage the defects such as part, there is provided a kind of stop valve.

The utility model is to solve above-mentioned technical problem by following technical proposals：

A kind of stop valve, including valve body, the valve inner is provided with valve pocket, and its feature is that the stop valve includes One flap, the flap is placed in the valve pocket, and the flap includes a guide part, and the guide part periphery offers pressure release Groove, the gas pressure relief slot is worn to the guiding lower surface by the guide part upper surface.

It is preferred that the gas pressure relief slot there are four, and it is uniformly distributed along excircle.

It is preferred that the gas pressure relief slot rectangular cross-section, or it is semicircle, or V-arrangement, or it is trapezoidal.

In the technical program, can be different according to processing request or the flap shape, select the described of different cross section to let out Indent.

It is preferred that the stop valve also includes a valve rod, the holding tank that a section is T-shaped is offered in the middle of the flap, The valve rod is placed in the holding tank.

It is preferred that the valve rod includes the first limiting section and the second limiting section, the holding tank includes the first draw-in groove and the Two draw-in groove, two sides that first limiting section is parallel to each other coordinate with the first draw-in groove contacts side surfaces, second limit Position portion is placed in second draw-in groove.

In the technical program, between holding tank and valve rod using plane clearance coordinate, not only prevented flap rotate but also can band Dynamic flap is moved up and down in valve pocket.

It is preferred that first draw-in groove and second draw-in groove are U-lag.

It is preferred that the gas pressure relief slot is worn to the guiding lower surface by the holding tank lower surface.

It is preferred that a round platform portion, the round platform portion and the equal built-up welding hard of the guide part are extended in the guide part lower section Alloy.

In the technical program, the round platform portion and the equal pile-up welding hard alloy of the guide part are wear-resisting for strengthening flap Property.

On the basis of common sense in the field is met, above-mentioned each optimum condition can be combined, obtain final product the utility model respectively compared with Good example.

Positive effect of the present utility model is：

Stop valve structure that the utility model is provided is simple, easy to process, using simple, releasing pressure automatically can be realized, prevent Only valve builds the pressure, stuck, unlatching is difficult, damage the phenomenons such as part occurs.

Description of the drawings

Fig. 1 is the cut-away section structural representation of the stop valve of the preferred embodiment of the utility model one.

Fig. 2 is the cross-sectional view of the valve pocket of the stop valve of the preferred embodiment of the utility model one.

Fig. 3 is the cross-sectional view of the flap of the stop valve of the preferred embodiment of the utility model one.

Fig. 4 is the overlooking the structure diagram of the flap of the stop valve of the preferred embodiment of the utility model one.

Fig. 5 is the structural representation of the valve rod of the stop valve of the preferred embodiment of the utility model one.

Fig. 6 is the A-A cross-sectional views of Fig. 5.

Description of reference numerals：

1：Valve rod

11：First limiting section

12：Second limiting section

2：Valve body

3：Flap

31：Guide part

32：Holding tank

321：First draw-in groove

322：Second draw-in groove

33：Round platform portion

34：Gas pressure relief slot

4：Valve pocket

Specific embodiment

Name preferred embodiment, and combine accompanying drawing becoming apparent from intactly illustrating the utility model.

As shown in figures 1 to 6, a kind of stop valve, including valve body 2, valve body 2 is internally provided with valve pocket 4, also including a flap 3, Flap 3 is placed in valve pocket 4, and flap 3 includes a guide part 31, and the periphery of guide part 31 offers gas pressure relief slot 34, the lower section of guide part 31 Extend a round platform portion 33, as shown in figure 4, gas pressure relief slot 34 there are four, and be uniformly distributed along excircle.Pressure release in the present embodiment The rectangular cross-section of groove 34, also may be selected in other embodiments section for semicircle, or V-arrangement, or trapezoidal groove is used as gas pressure relief slot 34。

In the present embodiment, the external diameter of flap 3 opens gas pressure relief slot 34, and valve medium in opening-closing process is pressed from the release of gas pressure relief slot 34 Power, not only realizes the guide effect of flap 3, also achieves the releasing pressure automatically function of valve pocket 4.

As seen in figs. 5-6, stop valve also includes a valve rod 1, and the holding tank 32 that a section is T-shaped is offered in the middle of flap 3, Valve rod 1 is placed in holding tank 32.Valve rod 1 includes the first limiting section 11 and the second limiting section 12, and holding tank 32 includes the first draw-in groove 321 and second draw-in groove 322, two sides that the first limiting section 11 is parallel to each other coordinate with the contacts side surfaces of the first draw-in groove 321, prevent Flap 3 is rotated, and the second limiting section 12 is placed in the second draw-in groove 322, and valve rod 1 can drive flap 3 to move.Accommodate in the present embodiment Between groove 32 and valve rod 1 using plane clearance coordinate, not only prevented flap 3 rotate but also can drive flap 3 in valve pocket 4 on move down It is dynamic.

Because the first draw-in groove 321 and the second draw-in groove 322 are U-lag, in the present embodiment, there is a gas pressure relief slot 34 by accommodating The lower surface of groove 32 is worn to the lower surface of guide part 31, has three gas pressure relief slots 34 to be worn to guide part 31 by the upper surface of guide part 31 Surface.

In order to reach the effect for strengthening the wearability of flap 3, round platform portion 33 and the equal pile-up welding hard alloy of guide part 31, guide part 31 built-up welding " STL21 " hard alloy, the built-up welding of round platform portion 33 " STL6 " hard alloy.

Although the foregoing describing specific embodiment of the present utility model, it will be appreciated by those of skill in the art that This is merely illustrative of, and protection domain of the present utility model is defined by the appended claims.Those skilled in the art On the premise of without departing substantially from principle of the present utility model and essence, various changes or modifications can be made to these embodiments, But these changes and modification each fall within protection domain of the present utility model.

Claims

1. a kind of stop valve, including valve body, the valve inner is provided with valve pocket, it is characterised in that the stop valve includes one Flap, the flap is placed in the valve pocket, and the flap includes a guide part, and the guide part periphery offers gas pressure relief slot, The gas pressure relief slot is worn to the guiding lower surface by the guide part upper surface.

2. stop valve as claimed in claim 1, it is characterised in that the gas pressure relief slot has four, and is uniformly distributed along excircle.

3. stop valve as claimed in claim 1, it is characterised in that the gas pressure relief slot rectangular cross-section, or it is semicircle, or V-arrangement, Or it is trapezoidal.

4. stop valve as claimed in claim 1, it is characterised in that the stop valve also includes a valve rod, in the middle of the flap The holding tank that a section is T-shaped is offered, the valve rod is placed in the holding tank.

5. stop valve as claimed in claim 4, it is characterised in that the valve rod includes the first limiting section and the second limiting section, The holding tank includes the first draw-in groove and the second draw-in groove, two sides that first limiting section is parallel to each other and the described first card Groove contacts side surfaces coordinate, and second limiting section is placed in second draw-in groove.

6. stop valve as claimed in claim 5, it is characterised in that first draw-in groove and second draw-in groove are U-lag.

7. stop valve as claimed in claim 4, it is characterised in that the gas pressure relief slot is worn to institute by the holding tank lower surface State guiding lower surface.

8. stop valve as claimed in claim 1, it is characterised in that extend a round platform portion, the circle in the guide part lower section Platform portion and the equal pile-up welding hard alloy of the guide part.