CN212868470U

CN212868470U - Novel pneumatic stop valve

Info

Publication number: CN212868470U
Application number: CN202021664902.2U
Authority: CN
Inventors: 徐星; 沈地
Original assignee: Wuhan Yong Tai'an Valve Co ltd
Current assignee: Wuhan Yong Tai'an Valve Co ltd
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2021-04-02
Anticipated expiration: 2030-08-12

Abstract

The utility model discloses a novel pneumatic stop valve in stop valve technical field, including single-action cylinder and valve body, fixedly connected with feed inlet and discharge gate are distinguished at the valve body both ends, sliding connection has the valve rod in the middle of the valve body, valve rod tip fixedly connected with valve clack, the material way has been seted up in the middle of the valve body, the fixed way of opening and close of having seted up in material way top, feed inlet and discharge gate and material way intercommunication, the valve rod is located opens and close in the middle of the way, valve body bottom fixedly connected with bottom flange, seted up in the middle of the bottom flange and held dirty guide way, valve rod top fixedly connected with connecting block, the expansion end of connecting block fixedly connected with single-action cylinder, the utility model discloses separation valve body and bottom flange regularly clear up impurity, the.

Description

Novel pneumatic stop valve

Technical Field

The utility model relates to a stop valve technical field specifically is a novel pneumatic stop valve.

Background

The stop valve, also called stop valve, is one of the most widely used valves, and it is popular because the friction between the sealing surfaces is small in the opening and closing process, it is durable, the opening height is not large, it is easy to manufacture, it is convenient to maintain, it is not only suitable for middle and low pressure, but also for high pressure. The opening and closing part of the stop valve is a plug-shaped valve clack, the sealing upper surface of the stop valve is a plane or sea conical surface, the valve clack moves linearly along the central line of a valve seat, the performance of the valve clack greatly influences the sealing performance of the valve, and most of the stop valves used in a boiler pipeline for a long time can cause the damage of the sealing surface of the valve or the loss of the sealing performance of the valve due to the deposition of impurities in the pipeline and the incapability of timely deslagging.

Based on this, the utility model designs a novel pneumatic stop valve to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel pneumatic stop valve to solve the problem that provides in the above-mentioned background art because the deposit of impurity in the pipeline and can not in time arrange the sediment, can lead to the sealed face of valve impaired or the sealing performance of valve loses.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a novel pneumatic stop valve, includes single-action cylinder and valve body, the valve body both ends are fixedly connected with feed inlet and discharge gate respectively, sliding connection has the valve rod in the middle of the valve body, valve rod end fixed connection has the valve clack, the expert's material way has been seted up in the middle of the valve body, the fixed way of opening and close of having seted up in expert's top, feed inlet and discharge gate and expert's material way intercommunication, the valve rod is located opens and close and says in the middle of, valve body bottom fixedly connected with bottom flange, seted up in the middle of the bottom flange and held dirty guide way, valve rod top fixedly connected with connecting block, the expansion end of connecting.

Preferably, an umbrella-shaped sealing surface is fixedly arranged at the bottom of the opening and closing channel of the valve body, and the valve clack is matched with the sealing surface.

Preferably, the top of the valve body is fixedly connected with a connecting cylinder, the top of the connecting cylinder is fixedly connected with a sealing seat, and a sealing filler is fixedly arranged between the sealing seat and the valve rod.

Preferably, the end part of the single-acting cylinder is fixedly connected with a plurality of groups of connecting rods, and the connecting rods are fixedly connected with the connecting cylinder through end flanges.

Preferably, the end part of the valve rod is positioned in the dirt containing guide groove and is in sliding fit with the dirt containing guide groove, and a sealing gasket is fixedly connected between the bottom flange and the valve body.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a two sections through-material ways that upwards misplace the setting to one side make the impurity in the medium sink, long-time back of using, impurity piles up in the dirty guide way of holding of bottom flange, can be through not hard up bolt, separation valve body and bottom flange regularly clear up impurity, and the life of sealed face is prolonged, avoids wearing and tearing to lose the leakproofness.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of a front view angle partial section structure of the present invention;

fig. 2 is the structure diagram of the valve body half-section of the utility model.

In the drawings, the components represented by the respective reference numerals are listed below:

1-single-acting cylinder, 2-valve body, 3-feed inlet, 4-discharge outlet, 5-valve rod, 6-valve flap, 7-material passage, 8-opening and closing passage, 9-bottom flange, 10-dirt-containing guide groove, 11-connecting block, 12-sealing surface, 13-connecting cylinder, 14-sealing seat, 15-sealing filler and 16-connecting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution:

the utility model provides a novel pneumatic stop valve, including single-action cylinder 1 and

valve body

2, 2 both ends of valve body are fixedly connected with feed inlet 3 and discharge gate 4 respectively, sliding connection has valve rod 5 in the middle of the

valve body

2, 5 end fixedly connected with valve clacks 6 of valve rod, the intercommunication material way 7 has been seted up in the middle of the valve body 2, the fixed opening and closing way 8 of having seted up in 7 tops of intercommunication material way, feed inlet 3 and discharge gate 4 and the intercommunication material way 7, valve rod 5 is located opens and closes in the middle of the

way

8, 2 bottom fixedly connected with bottom flanges 9 of valve body, seted up in the middle of the bottom flanges 9 and held

dirty guide way

10, 5 top fixedly connected with connecting block 11 of valve rod.

Wherein, the bottom of the opening and closing channel 8 of the valve body 2 is fixedly provided with an umbrella-shaped sealing surface 12, and the valve clack 6 is matched with the sealing surface 12. The top of the valve body 2 is fixedly connected with a connecting cylinder 13, the top of the connecting cylinder 13 is fixedly connected with a sealing seat 14, and a sealing filler 15 is fixedly arranged between the sealing seat 14 and the valve rod 5. The end part of the single-acting cylinder 1 is fixedly connected with a plurality of groups of connecting rods 16, and the connecting rods 16 are fixedly connected with the connecting cylinder 13 through end part flanges. The end part of the valve rod 5 is positioned in the sewage containing guide groove 10 and is in sliding fit with the sewage containing guide groove, and a sealing gasket is fixedly connected between the bottom flange 9 and the valve body 2.

One specific application of this embodiment is: the utility model discloses a 3 feeding of feed inlet, through opening and close the other end that says 7 from the expert material behind 8, through the 4 ejection of compact of discharge gate, when the valve was closed, through switch-on single action cylinder 1, the cylinder passed through connecting block 11 and drives valve rod 5 and rise, and valve clack 6 rises and sealed face 12 contact formation line seal in opening and close 8 simultaneously, and the valve is closed.

When the valve is opened, through the single-acting cylinder 1 gassing, its spring resetting means from the area makes the expansion end stretch out (the single-acting cylinder is the spring resetting cylinder, the principle that resets is no longer described here), drive valve rod 5 and valve clack 6 and move down, valve clack 6 leaves sealed face 12, the valve is opened, two sections through the skew to the dislocation set up lead to material way 7 make the impurity in the medium sink, after long-time the use, impurity piles up in the dirty guide way 10 of holding of bottom flange 9, can be through not hard up bolt, separation valve body 2 and bottom flange 9 regularly clear up impurity, the life of sealed face 12 is prolonged, avoid wearing and tearing to lose the leakproofness, only need during the clearance close the valve can, the clearance is convenient.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a novel pneumatic stop valve, includes single-action cylinder (1) and valve body (2), its characterized in that: valve body (2) both ends are fixedly connected with feed inlet (3) and discharge gate (4) respectively, sliding connection has valve rod (5) in the middle of valve body (2), valve rod (5) tip fixed connection has valve clack (6), logical material way (7) have been seted up in the middle of valve body (2), logical material way (7) top is fixed to have been seted up and is opened and close way (8), feed inlet (3) and discharge gate (4) and logical material way (7) intercommunication, valve rod (5) are located to open and close and say in the middle of (8), valve body (2) bottom fixedly connected with bottom flange (9), set up in the middle of bottom flange (9) and hold dirty guide way (10), valve rod (5) top fixedly connected with connecting block (11), the expansion end of connecting block (11) fixedly connected with single-action cylinder (1).

2. The new pneumatic stop valve of claim 1, wherein: an umbrella-shaped sealing surface (12) is fixedly arranged at the bottom of the opening/closing channel (8) of the valve body (2), and the valve clack (6) is matched with the sealing surface (12).

3. The new pneumatic stop valve of claim 1, wherein: the valve body (2) top fixedly connected with connecting cylinder (13), connecting cylinder (13) top fixedly connected with seal receptacle (14), it is fixed between seal receptacle (14) and valve rod (5) to be equipped with sealing filler (15).

4. The new pneumatic stop valve of claim 1, wherein: the end part of the single-acting cylinder (1) is fixedly connected with a plurality of groups of connecting rods (16), and the connecting rods (16) are fixedly connected with the connecting cylinder (13) through end flanges.

5. The new pneumatic stop valve of claim 1, wherein: the end part of the valve rod (5) is positioned in the dirt containing guide groove (10) and is in sliding fit with the dirt containing guide groove, and a sealing gasket is fixedly connected between the bottom flange (9) and the valve body (2).