CN211738178U

CN211738178U - Pneumatic cut-off valve

Info

Publication number: CN211738178U
Application number: CN201922123089.1U
Authority: CN
Inventors: 张凌慷; 范传哲; 张曙东; 范光丰
Original assignee: Zhejiang East Valve Co ltd
Current assignee: Zhejiang East Valve Co ltd
Priority date: 2019-12-02
Filing date: 2019-12-02
Publication date: 2020-10-23
Anticipated expiration: 2029-12-02

Abstract

The utility model discloses a pneumatic trip valve, including last valve body and lower valve body, go up the bottom of valve body and the middle part fixed connection of lower valve body, go up the fixed cylinder that is equipped with in the inside top of valve body, the output of cylinder passes through piston bush fixedly connected with piston core, and the one end fixedly connected with spring post of piston core, the outer wall of spring post is through a plurality of spheroid and valve chamber swing joint, and the bottom cover of going up the valve body outer wall is equipped with the clamp, the beneficial effects of the utility model are that: the output through the cylinder passes through piston bush fixedly connected with piston core, and the one end fixedly connected with spring post of piston core, and the outer wall of spring post is through a plurality of spheroids and valve room swing joint, increases case mobility stability to increase the security performance, the bottom cover through last valve body outer wall is equipped with the clamp, through the setting of clamp, is convenient for install the trip valve body, and increases the protectiveness to last valve body inner structure.

Description

Pneumatic cut-off valve

Technical Field

The utility model relates to a trip valve, in particular to pneumatic trip valve belongs to valve gear technical field.

Background

The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like. Valves used in fluid control systems range in variety and size from the simplest shut-off valves to the variety of valves used in extremely complex autonomous systems. The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The valves are further divided into cast iron valves, cast steel valves, stainless steel valves, chromium molybdenum vanadium steel valves, dual-phase steel valves, plastic valves, nonstandard valves and the like according to the material.

The pneumatic cut-off valve has the function of quick cut-off and has the characteristics of simple structure, sensitive response, reliable action and the like. Can be widely applied to industrial production departments such as petroleum, chemical industry, metallurgy and the like. The source of the pneumatic shut-off valve requires filtered compressed air and the media flowing through the valve body should be contaminant-free and particle-free liquids and gases. The pneumatic cut-off valves are classified into a common pneumatic cut-off valve and a quick emergency pneumatic cut-off valve.

The existing pneumatic cut-off valve is not stable enough in the using process, the safety performance is not high, the existing pneumatic cut-off valve is easy to damage and is not easy to install, and therefore the existing pneumatic cut-off valve still has the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pneumatic trip valve to the current pneumatic trip valve that proposes in solving above-mentioned background art is stable inadequately at the in-process that uses, and the security performance is not high, and current pneumatic trip valve fragile, and the difficult problem of installing.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a pneumatic trip valve, includes valve body and lower valve body, go up the bottom of valve body and the middle part fixed connection of lower valve body, the fixed valve chamber that is equipped with in inside of going up the valve body, go up the fixed cylinder that is equipped with in the inside top of valve body, the output of cylinder passes through piston bush fixedly connected with piston core, the one end fixedly connected with spring post of piston core, the outer wall of spring post is through a plurality of spheres and valve chamber swing joint, the bottom cover of going up the valve body outer wall is equipped with the clamp.

As an optimal technical scheme of the utility model, the fixed passageway that is equipped with in inside of lower valve body, one side of passageway is fixed and is equipped with the mobile chamber.

As a preferred technical scheme of the utility model, the bottom of spring post is through pressure plate fixedly connected with cutting rod, cutting rod's bottom alternates and is connected with the case.

As a preferred technical scheme of the utility model, the bottom of cutting rod is passed through the nut and is connected with the passageway interlude, the fixed arc convex body that is equipped with of one end of nut.

As an optimized technical scheme of the utility model, the fixed valve gap that is equipped with in middle part on last valve body top, the valve gap is the hexagon socket head cap structure.

As an optimized technical scheme of the utility model, the outside both sides of clamp are all fixed and are equipped with the otic placode, the clamp is made by stainless steel material.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a pneumatic trip valve passes through piston bush fixedly connected with piston core through the output of cylinder, and the one end fixedly connected with spring post of piston core, and the outer wall of spring post is through a plurality of spheroid and valve chamber swing joint, increases case mobility stability to increase the security performance, the bottom cover through last valve body outer wall is equipped with the clamp, through the setting of clamp, is convenient for install the trip valve body, and increases the protectiveness to last valve body inner structure.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the front internal structure of the present invention;

fig. 3 is a schematic view of a partial structure a of the present invention.

In the figure: 1. an upper valve body; 2. a lower valve body; 3. a channel; 4. a flow chamber; 5. a cylinder; 6. a valve chamber; 7. a piston sleeve; 8. a piston core; 9. a spring post; 10. a pressure plate; 11. cutting off the rod; 12. a sphere; 13. a valve core; 14. a valve cover; 15. clamping a hoop; 16. an ear plate.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-3, the utility model provides a pneumatic trip valve, including last valve body 1 and lower valve body 2, go up the bottom of valve body 1 and the middle part fixed connection of lower valve body 2, the fixed valve chamber 6 that is equipped with in inside of going up valve body 1, the fixed cylinder 5 that is equipped with in top of going up the inside of valve body 1, the output of cylinder 5 passes through 7 fixedly connected with piston cores 8 of piston bush, the one end fixedly connected with spring post 9 of piston core 8, the outer wall of spring post 9 is through a plurality of

spheroid

12 and 6 swing joint of valve chamber, increase case 13 mobility stability, thereby increase the security performance, the bottom cover of going up valve body 1 outer wall is equipped with clamp 15, be convenient for install the trip valve body, and increase the protection to the internal structure of last valve body 1.

Preferably, a channel 3 is fixedly arranged inside the lower valve body 2, and a flow cavity 4 is fixedly arranged on one side of the channel 3, so that whether the flow cavity 4 circulates or not can be conveniently controlled; the bottom end of the cutting rod 11 is inserted and connected with the channel 3 through a nut, one end of the nut is fixedly provided with an arc-shaped convex body, so that the cutting rod 11 and the channel 3 are fixed through the arrangement of the nut, and the flowing cavity 4 is cut off to be communicated with the valve chamber 6; the bottom end of the spring column 9 is fixedly connected with a cut-off rod 11 through a pressure plate 10, and the bottom of the cut-off rod 11 is connected with a valve core 13 in an inserting manner, so that the valve core 13 is pushed to move through the movement of the cut-off rod 11, and the cut-off work of the cut-off valve is controlled; the middle part of the top end of the upper valve body 1 is fixedly provided with a valve cover 14, and the valve cover 14 is of an inner hexagonal structure, so that the valve cover 14 is convenient to mount; the outside both sides of clamp 15 are all fixed and are equipped with otic placode 16, and clamp 15 is made by stainless steel material, through the setting of clamp 15 and otic placode 16, is convenient for install the trip valve body, and increases the structural rigidity and to the protectiveness of last valve body 1 inner structure.

When specifically using, the utility model relates to a pneumatic trip valve, at first when the pneumatic trip valve body of installation, otic placode 16 on the handheld clamp 15 installs pneumatic trip valve body and erection equipment, after the installation finishes, when using pneumatic trip valve body, open cylinder 5, the action of cylinder 5 drives piston core 8 downstream, piston core 8 promotes spring post 9 downstream, the in-process that spring post 9 removed, setting through a plurality of spheroid 12, spring post 9 steady movement in valve chamber 6, thereby guarantee case 13 steady movement, promote pressure plate 10 and drive cutting off pole 11 downstream when spring post 9 removes, the nut of the one end fixed connection of cutting off pole 11 passes passageway 3, realize cutting off work between flow chamber 4 and the valve chamber 6.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a pneumatic trip valve, includes valve body (1) and lower valve body (2), its characterized in that, go up the bottom of valve body (1) and the middle part fixed connection of lower valve body (2), the inside fixed valve room (6) that is equipped with of going up valve body (1), go up fixed cylinder (5) that is equipped with in top of valve body (1) inside, the output of cylinder (5) passes through piston bush (7) fixedly connected with piston core (8), the one end fixedly connected with spring post (9) of piston core (8), the outer wall of spring post (9) is through a plurality of spheroid (12) and valve room (6) swing joint, the bottom cover of going up valve body (1) outer wall is equipped with clamp (15).

2. A pneumatic shut-off valve according to claim 1, characterised in that the interior of the lower valve body (2) is fixedly provided with a channel (3), and one side of the channel (3) is fixedly provided with a flow chamber (4).

3. A pneumatic cut-off valve according to claim 1, wherein the bottom end of the spring column (9) is fixedly connected with a cut-off rod (11) through a pressure plate (10), and the bottom of the cut-off rod (11) is inserted and connected with a valve core (13).

4. A pneumatic cut-off valve according to claim 3, characterized in that the bottom end of the cut-off rod (11) is inserted into the channel (3) through a nut, and an arc-shaped convex body is fixedly arranged at one end of the nut.

5. A pneumatic cut-off valve according to claim 1, characterized in that a valve cover (14) is fixedly arranged in the middle of the top end of the upper valve body (1), and the valve cover (14) is of a hexagon socket structure.

6. A pneumatic shut-off valve according to claim 1, characterised in that the clamp (15) is provided with lugs (16) fixed to both sides of its outer portion, the clamp (15) being made of stainless steel.