CN213146085U

CN213146085U - Pneumatic control cylinder valve

Info

Publication number: CN213146085U
Application number: CN202021772105.6U
Authority: CN
Inventors: 杨波; 王阳
Original assignee: Kezhe Shanghai Valve Co ltd
Current assignee: Kezhe Shanghai Valve Co ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-05-07
Anticipated expiration: 2030-08-24

Abstract

The utility model discloses a pneumatic control gas cylinder valve, which comprises a valve body, the inside of valve body is equipped with the connection cavity, the lower extreme of connecting the cavity is equipped with the toper through-hole, the lower extreme fixed surface of valve body is connected with the installation screw thread section of thick bamboo, the left side fixed surface of valve body installs the outlet duct, connect the middle part side fixedly connected with baffle of cavity, the fixed surface of baffle is connected with the sealing washer, the side slidable mounting of sealing washer has the valve rod, the upper end fixedly connected with piston of valve rod, the side slidable mounting of piston is in the upper end inner wall of connecting the cavity, the lower extreme fixedly connected with sealing head of valve rod, the side slidable connection of sealing head is in the internal surface of toper through-hole, can improve the convenience and the stability of using greatly like this, guarantees the.

Description

Pneumatic control cylinder valve

Technical Field

The utility model relates to a valve field, more specifically say, relate to a pneumatic control gas cylinder valve.

Background

In the use process of the gas cylinder, a gas cylinder valve needs to be installed for closed control, so that the gas cylinder is convenient and safe to use.

However, the existing gas cylinder valve structure mostly adopts manual control, cannot be connected with a gas source to perform pneumatic control opening and closing, and is poor in adaptability, and due to the single gas control structure, the required control gas pressure is large, so that the operation is not facilitated, the stability is insufficient, and the improvement is needed.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model aims to provide a pneumatic control gas cylinder valve, through at the inside connection cavity installation valve rod of valve body, can keep apart the regulation, and then change the area of both sides, just also increase the pressure of control gas end, do benefit to the control and compress tightly to connect through piston and sealed head, do benefit to and compress tightly the closure, combine the threaded rod of tip, can manual regulation control, can improve the convenience and the stability of using like this greatly, guarantee the security of adjusting.

In order to solve the above problems, the utility model adopts the following technical proposal.

The utility model provides a pneumatic control gas cylinder valve, includes the valve body, the inside of valve body is equipped with connects the cavity, the lower extreme of connecting the cavity is equipped with the toper through-hole, the lower extreme fixed surface of valve body is connected with the installation screw thread section of thick bamboo, the left side fixed surface of valve body installs the outlet duct, the middle part side fixedly connected with baffle of connecting the cavity, the fixed surface of baffle is connected with the sealing washer, the side slidable mounting of sealing washer has the valve rod, the upper end fixedly connected with piston of valve rod, the side slidable mounting of piston is in the upper end inner wall of connecting the cavity, the lower extreme fixedly connected with of valve rod seals the head, the side slidable connection of sealed head is in the internal.

Furthermore, reset spring has been cup jointed in the upper end surface slip of valve rod, reset spring's lower terminal surface fixed connection is in the upper surface of baffle, through cup jointing reset spring on the valve rod, can support to reset, guarantees the stability of adjusting.

Further, the upper end right side end face fixed mounting control trachea of valve body, the control trachea is located the upper end of piston, through at valve body upper end right side installation control trachea, can put through control gas and adjust control, and is safe high-efficient, does benefit to the operation and uses.

Furthermore, the threaded rod is installed to the upper end screw thread of connecting the cavity, the upper end fixed mounting of threaded rod has the hand wheel, through threaded rod installation hand wheel, does benefit to manual regulation and control, and the adaptability is high.

Further, the upper end of threaded rod is through mounting hole fixedly connected with stay cord, the lower extreme fixed connection of stay cord is in the opposite side surface of piston, connects the piston through the stay cord, can stimulate rebound, can not interfere pneumatic control, and is convenient stable, does benefit to the use.

Compared with the prior art, the utility model has the advantages of:

(1) this scheme is through at the inside connection cavity installation valve rod of valve body, can keep apart the regulation, and then changes the area of both sides, just also increases the pressure of control gas end, does benefit to the control and compresses tightly to connect through piston and sealed head, do benefit to and compress tightly the closure, combine the threaded rod of tip, can manual regulation control.

(2) Through cup jointing reset spring on the valve rod, can support and reset, guarantee the stability of adjusting.

(3) Through at valve body upper end right side installation control trachea, can switch on control gas and adjust control, it is safe high-efficient, do benefit to the operation and use.

(4) And a hand wheel is installed through a threaded rod, so that manual adjustment and control are facilitated, and the adaptability is high.

(5) The piston is connected through the stay cord, can stimulate the rebound, can not interfere the pneumatic control, and convenient stable does benefit to the use.

Drawings

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

fig. 2 is an enlarged view of the connection point a of the pulling rope in fig. 1.

The reference numbers in the figures illustrate:

1. a valve body; 11. a connecting cavity; 12. a tapered through hole; 13. installing a threaded cylinder; 14. an air outlet pipe; 15. A partition plate; 16. a seal ring; 17. a valve stem; 18. a piston; 19. a sealing head; 2. a return spring; 21. A control air pipe; 22. a threaded rod; 23. a hand wheel; 24. mounting holes; 25. and pulling a rope.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present embodiment, unless otherwise specified, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience of description and simplification of description, and do not indicate or imply that the referred high purity gas diaphragm valve must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 and fig. 2, for the pneumatic control cylinder valve of the present invention, including a valve body 1, please refer to fig. 1, a connection cavity 11 is provided inside the valve body 1, a tapered through hole 12 is provided at the lower end of the connection cavity 11, which can vent gas and seal at the bottom, and is beneficial for adjustment, a mounting threaded cylinder 13 is fixedly connected to the lower end surface of the valve body 1, a gas outlet pipe 14 is fixedly mounted on the left side surface of the valve body 1, a partition 15 is fixedly connected to the middle side surface of the connection cavity 11, which can separate two layers of space, gas can enter and exit at the bottom, and gas can be pneumatically controlled at the upper end, so that the area of the lower end pushing valve rod 17 is smaller, and the area of the upper end pushing piston 18 is large, so that the pressure requirement for sealing adjustment is smaller, which is beneficial for operation control, safety and stability, a sealing ring, valve rod 17's upper end fixedly connected with piston 18, piston 18's side slidable mounting is in the up end inner wall of connecting cavity 11, valve rod 17's the sealed head 19 of lower extreme fixedly connected with, can promote sealed head 19 downstream through piston 18, and then compress tightly 12 inside seal of toper through-hole, avoid leaking, do benefit to the gas cylinder storage, the side slidable connection of sealed head 19 is in the internal surface of toper through-hole 12, reset spring 2 has been cup jointed in the upper end surface sliding of valve rod 17, can assist piston 18 to reset, do benefit to and open, and is convenient to use, reset spring 2's lower terminal surface fixed connection is in the upper surface of baffle 15.

As shown in fig. 1 and 2, the control air pipe 21 is fixedly installed on the side face of the right end of the valve body 1, the control air pipe 21 is located at the upper end of the piston 18, the threaded rod 22 is installed on the upper end thread of the connecting cavity 11, the hand wheel 23 is fixedly installed on the upper end of the threaded rod 22, the pull rope 25 is fixedly connected to the upper end of the threaded rod 22 through the installation hole 24, the lower end of the pull rope 25 is fixedly connected to the upper end surface of the piston 18, the threaded rod 22 can be rotated through the hand wheel 23 to be manually controlled, the pull rope 25 can be avoided, the pneumatic control cannot be interfered.

When the gas cylinder is used, the gas cylinder can be installed on a large gas cylinder through the installation thread cylinder 13, the bottom of the valve body 1 is inserted into the gas cylinder, when the sealing head 19 is separated from the conical through hole 12, the gas cylinder can be opened, gas can flow out of the gas outlet pipe 14 and is beneficial to use, when the sealing head needs to be sealed, control gas can be introduced from the control gas pipe 21, the protection piston 18 can be pushed to move downwards, the sealing head 19 is enabled to compress the conical through hole 12, internal sealing is achieved, leakage is avoided, gas cylinder storage is facilitated, the pull rope 25 can be straightened to avoid the internal sealing without interference, meanwhile, the threaded rod can be rotated through the hand wheel 23, the piston 18 can be directly pushed to move downwards, mechanical connection is stable, adaptability is high, selective adjustment and use can be achieved, the hand wheel 23 can be rotated reversely when the hand wheel 23 is.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a pneumatic control gas cylinder valve, includes the valve body, its characterized in that, the inside of valve body is equipped with connects the cavity, the lower extreme of connecting the cavity is equipped with the toper through-hole, the lower extreme fixed surface of valve body is connected with the installation screw thread section of thick bamboo, the left side fixed surface of valve body installs the outlet duct, the middle part side fixedly connected with baffle of connecting the cavity, the fixed surface of baffle is connected with the sealing washer, the side slidable mounting of sealing washer has the valve rod, the upper end fixedly connected with piston of valve rod, the side slidable mounting of piston is in the upper end inner wall of connecting the cavity, the lower extreme fixedly connected with sealing head of valve rod, the side slidable connection of sealing head is in the internal.

2. The pneumatically controlled cylinder valve according to claim 1, wherein a return spring is slidably fitted over an upper end surface of the valve stem, and a lower end surface of the return spring is fixedly connected to an upper surface of the partition plate.

3. The pneumatic control cylinder valve according to claim 1, wherein a control air pipe is fixedly installed on the right end face of the upper end of the valve body, and the control air pipe is located at the upper end of the piston.

4. The pneumatically controlled cylinder valve of claim 1, wherein a threaded rod is threadedly mounted to an upper end of said connecting cavity, and a hand wheel is fixedly mounted to an upper end of said threaded rod.

5. The pneumatically controlled cylinder valve according to claim 4, wherein a pull cord is fixedly connected to an upper end of the threaded rod through the mounting hole, and a lower end of the pull cord is fixedly connected to the other side surface of the piston.