CN214838785U

CN214838785U - Actuating mechanism of pneumatic valve

Info

Publication number: CN214838785U
Application number: CN202121228794.9U
Authority: CN
Inventors: 李春艳; 赵峰; 华旻嘉; 李敬虎; 章树银
Original assignee: Wuxi Yuexin Industry And Trade Co ltd
Current assignee: Wuxi Yuexin Industry And Trade Co ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2021-11-23
Anticipated expiration: 2031-06-02

Abstract

The utility model discloses an actuating mechanism of pneumatic valve relates to valve technical field. The utility model comprises a shell and a valve body, wherein the valve cover is fixedly connected on the valve body and is vertically and fixedly connected with the shell through a bracket; a valve rod is movably and hermetically connected in the valve cover, the other end of the valve rod penetrates through the support and extends into the shell, an air port is formed in one end of the shell, an elastic diaphragm is fixedly connected to one end, close to the air port, in the shell, one surface of the elastic diaphragm is fixedly connected with a push rod, the other end of the shell is fixedly connected with a stop block, and the push rod is movably connected with the stop block; one end of the valve rod, which is positioned in the shell, is fixedly connected with a first wedge-shaped block, and a second wedge-shaped block which is extruded by matching with the first wedge-shaped block is fixedly connected on the push rod. The utility model discloses a gaseous drive diaphragm warp to drive the push rod and remove, the push rod drives the valve rod and removes, thereby realized the purpose to the switch of valve body.

Description

Actuating mechanism of pneumatic valve

Technical Field

The utility model belongs to the technical field of the valve, especially, relate to an actuating mechanism of pneumatic valve.

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.

The pneumatic valve is driven by compressed air, and the pneumatic valve can meet purchasing requirements only by specifying specification, category and pressure when purchased, and 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. In order to compete with products, pneumatic valve manufacturers respectively carry out different innovations under the concept of uniform design of pneumatic valves, and form respective enterprise standards and product individuality.

Pneumatic valve on the existing market simple structure, single spring has all been designed inside traditional pneumatic valve at present, and when the control of valve, sensitivity is relatively poor, and single spring long-term use easily appears tiredly soft simultaneously, and valve rod back and forth motion stability is relatively poor, and life is shorter.

Disclosure of Invention

An object of the utility model is to provide an actuating mechanism of pneumatic valve through be connected with the support between casing and valve body, is equipped with the push rod in the casing, all is equipped with the spring on push rod and the valve rod, has solved the short problem of traditional pneumatic valve life.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to an actuating mechanism of a pneumatic valve, which comprises a shell and a valve body, wherein the valve cover is fixedly connected on the valve body and is vertically and fixedly connected with the shell through a bracket; a valve seat is arranged in the valve body, a valve rod is movably and hermetically connected in the valve cover, one end of the valve rod is fixedly connected with a valve core which is hermetically matched with the valve seat, the other end of the valve rod penetrates through the support and extends into the shell, and the valve rod is movably and hermetically connected with the shell; one end of the shell is provided with a gas port, one end of the shell close to the gas port is fixedly connected with an elastic diaphragm, one surface of the elastic diaphragm is fixedly connected with a push rod, the other end of the shell is fixedly connected with a stop block, and the push rod is movably connected with the stop block; the valve rod is located one end fixedly connected with first wedge-shaped block in the casing, fixedly connected with on the push rod with the cooperation extruded second wedge-shaped block of first wedge-shaped block, just fixedly connected with keeps off the ring on the valve rod, first fender ring is located in the support, first fender ring with be connected with first spring between the support, first spring housing is established the valve rod surface.

Furthermore, the surfaces of the first wedge-shaped block and the second wedge-shaped block, which are connected with each other, are both provided with inclined surfaces.

Furthermore, a second stop ring is fixedly connected to the push rod, a second spring is connected between the second stop ring and the stop block, and the second spring is sleeved on the surface of the push rod.

Further, a sealing filler is connected between the valve rod and the valve cover.

Further, a guide sleeve connected with the push rod in a sliding manner is fixedly connected in the shell.

Furthermore, a scale pointer is connected to the valve rod and arranged in the support.

The utility model discloses following beneficial effect has:

the utility model discloses a gaseous drive diaphragm warp to drive the push rod and remove, the push rod drives the valve rod and removes, thereby has realized all being equipped with the spring on valve rod and the push rod to the purpose of the switch of valve body, through the effect of two springs, prevents single spring force undersize, can't open the valve body, and has improved the device's life.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

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 structural view of the present invention;

FIG. 2 is a schematic front view of FIG. 1;

fig. 3 is a schematic cross-sectional view of the present invention;

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

1-shell, 2-valve body, 3-valve rod, 4-bracket, 5-valve cover, 6-valve core, 7-valve seat, 8-first spring, 9-first retaining ring, 10-packing, 11-air port, 12-elastic diaphragm, 13-push rod, 14-stop block, 15-second retaining ring, 16-second spring, 17-first wedge block, 18-second wedge block, 19-guide sleeve and 20-scale pointer.

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.

In the description of the present invention, it is to be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "one end", "inner", and the like indicate positional or positional relationships, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1-3, the utility model relates to an actuator of a pneumatic valve, which comprises a housing 1 and a valve body 2, wherein the housing 1 is provided with a sealing structure, the valve body 2 is fixedly connected with a valve cover 5, the valve cover 5 is vertically and fixedly connected with the housing 1 through a bracket 4, and the bracket 4 is in a structure like a Chinese character 'kou'; a valve seat 7 is arranged in the valve body 2, a valve rod 3 is movably and hermetically connected in the valve cover 5, one end of the valve rod 3 is fixedly connected with a valve core 6 which is hermetically matched with the valve seat 7, the other end of the valve rod 3 penetrates through the support 4 and is extended into the shell 1, and the valve rod 3 is movably and hermetically connected with the shell 1; one end of the shell 1 is provided with a gas port 11 to facilitate gas to enter and exit from the gas port 11, one end of the shell 1 close to the gas port 11 is fixedly connected with an elastic diaphragm 12, one side of the elastic diaphragm 12 is fixedly connected with a push rod 13, the other end of the shell 1 is fixedly connected with a stop block 14, and the push rod 13 is movably connected with the stop block 14; the one end fixedly connected with of valve rod 3 is located casing 1 carves the shape 17 first, fixedly connected with on the push rod 13 carves the shape 18 with the extruded second of the shape 17 cooperation of first wedge, push rod 13 can drive valve rod 3 decline when moving left, and the first fender ring 9 of fixedly connected with on the valve rod 3, first fender ring 9 is located in support 4, is connected with first spring 8 between first fender ring 9 and the support 4, and first spring 8 cover is established on the valve rod 3 surface, and first spring 8 can make valve rod 3 rise and reset.

Preferably, the surfaces of the first wedge-shaped block 17 and the second wedge-shaped block 18 connected to each other are both inclined surfaces, so that the push rod 13 can move left and right to drive the valve rod 3 to lift.

Preferably, a second stop ring 15 is fixedly connected to the push rod 13, a second spring 16 is connected between the second stop ring 15 and the stop 14, the second spring 16 is sleeved on the surface of the push rod 13, and the second spring 16 enables the push rod 13 to move rightwards to reset.

Preferably, a sealing packing 10 is connected between the valve rod 3 and the valve cap 5 to improve the sealing property between the valve rod 3 and the valve cap 5.

Preferably, a guide sleeve 19 which is connected with the push rod 13 in a sliding way is fixedly connected in the shell 1, so that the push rod is stable in left and right movement,

preferably, a scale pointer 20 is connected to the valve rod 3, and the scale pointer 20 is arranged in the support 4, so that the moving position of the valve rod 3 can be observed conveniently.

One specific application of this embodiment is: when the utility model is used, gas enters the shell 1 from the gas port 11, the gas deforms the elastic diaphragm 12, the elastic diaphragm 12 makes the push rod 13 move leftwards, so as to drive the valve rod 3 to descend, and the valve core 6 is connected in the valve seat 7, so as to close the valve body 2; when it is necessary to open the valve body 2, gas is discharged from the gas port 11, the push rod 13 is moved rightward by the first spring 8 and the second spring 16, and the valve rod 3 is raised to open the valve body 2.

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. An actuating mechanism of a pneumatic valve is characterized in that:

the valve comprises a shell (1) and a valve body (2), wherein a valve cover (5) is fixedly connected to the valve body (2), and the valve cover (5) is vertically and fixedly connected with the shell (1) through a support (4);

a valve seat (7) is arranged in the valve body (2), a valve rod (3) is movably and hermetically connected in the valve cover (5), one end of the valve rod (3) is fixedly connected with a valve core (6) which is hermetically matched with the valve seat (7), the other end of the valve rod (3) penetrates through the support (4) and extends to the interior of the shell (1), and the valve rod (3) is movably and hermetically connected with the shell (1);

an air port (11) is formed in one end of the shell (1), an elastic diaphragm (12) is fixedly connected to one end, close to the air port (11), in the shell (1), one side of the elastic diaphragm (12) is fixedly connected with a push rod (13), the other end of the shell (1) is fixedly connected with a stop block (14), and the push rod (13) is movably connected with the stop block (14);

valve rod (3) are located the one end fixedly connected with in casing (1) carves shape piece (17) first, fixedly connected with on push rod (13) carve shape piece (18) with the extruded second of first wedge (17) cooperation, just valve rod (3) are gone up the first fender ring of fixedly connected with (9), first fender ring (9) are located in support (4), first fender ring (9) with be connected with first spring (8) between support (4), first spring (8) cover is established valve rod (3) surface.

2. A pneumatically actuated valve actuator as set forth in claim 1 wherein: the surfaces of the first wedge-shaped block (17) and the second wedge-shaped block (18) which are connected with each other are all provided with inclined surfaces.

3. A pneumatically actuated valve actuator as claimed in claim 1 or 2, wherein: the push rod (13) is fixedly connected with a second retaining ring (15), a second spring (16) is connected between the second retaining ring (15) and the stop block (14), and the surface of the push rod (13) is sleeved with the second spring (16).

4. A pneumatically actuated valve actuator as set forth in claim 3 wherein: and a sealing packing (10) is connected between the valve rod (3) and the valve cover (5).

5. A pneumatically actuated valve actuator as set forth in claim 1 wherein: the shell (1) is internally and fixedly connected with a guide sleeve (19) which is in sliding connection with the push rod (13).

6. A pneumatically actuated valve actuator as set forth in claim 1 wherein: the valve rod (3) is connected with a scale pointer (20), and the scale pointer (20) is arranged in the support (4).