CN213017741U

CN213017741U - Needle-shaped stop valve for high-purity gas

Info

Publication number: CN213017741U
Application number: CN202021895444.3U
Authority: CN
Inventors: 杨波; 王阳
Original assignee: Kezhe Shanghai Valve Co ltd
Current assignee: Kezhe Shanghai Valve Co ltd
Priority date: 2020-09-03
Filing date: 2020-09-03
Publication date: 2021-04-20
Anticipated expiration: 2030-09-03

Abstract

The utility model discloses a high-purity gas aciculiform stop valve, which comprises a valve body, one side of valve body is equipped with by the hole, both sides surface both ends that end the hole all are equipped with the intercommunicating pore, the opposite side of valve body is equipped with the disk seat, the inside of disk seat is equipped with adjusts the cavity, the upper end fixed mounting who adjusts the cavity has the apron, the upper end side slidable mounting who adjusts the cavity has the regulating plate, be equipped with adjusting screw hole on the regulating plate, adjusting screw hole's side thread installs adjusting threaded rod, adjusting threaded rod's lower extreme is equipped with the connecting block, there is the toper piece the lower surface of connecting block through screw fixed mounting, the surface sliding connection of toper piece is in the top that ends the hole, can improve the convenience and the stability.

Description

Needle-shaped stop valve for high-purity gas

Technical Field

The utility model relates to a stop valve field, more specifically says, relates to a high-purity gaseous aciculiform stop valve.

Background

In the process of conveying high-purity gas, a stop valve is required to be installed on a pipeline to cut off gas flow, so that the management and the use are convenient, and most of the common stop valves are needle-shaped stop valves.

But among the current stop valve structure, it is direct through threaded rod fixed mounting case that many, can screw drive during the regulation, just so can slow adjust from top to bottom and carry out the end seal, can not press to seal fast and detect, and adaptability is poor, and the seal block of valve core part receives the cavitation erosion easily moreover, is unfavorable for changing the maintenance, awaits improving.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model aims to provide a high-purity gas aciculiform stop valve through at the inside hole that ends that sets up of valve body, can compress tightly and end, simultaneously through adjusting the inside slidable mounting regulating plate of cavity, and then threaded connection adjusting threaded rod, combine the conical block of screw installation, can stably compress tightly by screw thread adjustment, also can directly manually promote to carry out quick seal, do benefit to the detection, conveniently maintain the change simultaneously, can improve the convenience and the stability of use greatly like this, guarantee the security.

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

The utility model provides a high-purity gaseous aciculiform stop valve, includes the valve body, one side of valve body is equipped with by the hole, both sides surface both ends that stop the hole all are equipped with the intercommunicating pore, the opposite side of valve body is equipped with the disk seat, the inside of disk seat is equipped with adjusts the cavity, the upper end fixed mounting who adjusts the cavity has the apron, the upper end side slidable mounting who adjusts the cavity has the regulating plate, be equipped with adjusting screw hole on the regulating plate, adjusting screw hole's side threaded mounting has adjusting threaded rod, adjusting threaded rod's lower extreme is equipped with the connecting block, there is the toper piece the lower surface of connecting block through screw fixed mounting, the surperficia.

Further, the fixed surface of toper piece installs the sealing ring, the surperficial sliding connection of sealing ring is in the internal surface of adjusting the cavity, through at toper piece surface adhesion sealing ring, can be connected sealedly with adjusting the cavity, avoids leaking, guarantees slide adjusting's stability.

Furthermore, the upper end fixed mounting of adjusting threaded rod has the hand wheel, the hand wheel rotates to be connected in the upper end surface middle part of disk seat, through the installation hand wheel, does benefit to and rotates the regulation from the upper end, avoids interfering, and is convenient high-efficient.

Furthermore, the surfaces of the two sides of the adjusting cavity are both provided with sliding grooves, and the side surfaces of the sliding grooves are fixedly provided with return springs.

Further, reset spring's lower extreme slidable mounting has the sliding block, the upper end fixed connection of sliding block is in the both sides surface of regulating plate.

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

(1) this scheme can compress tightly by the hole through setting up in that the valve body is inside, through adjusting the inside slidable mounting regulating plate of cavity simultaneously, and then threaded connection adjusting threaded rod, combines the screw installation bell block, can stably compress tightly by the screw thread regulation, also can direct manual promotion seal fast, does benefit to the detection, conveniently maintains the change simultaneously.

(2) Through at toper piece surface adhesion sealing ring, can be connected sealedly with adjusting the cavity, avoid leaking, guarantee slide adjusting's stability.

(3) Through the installation hand wheel, do benefit to and rotate the regulation from the upper end, avoid interfering, convenient high-efficient.

(4) The adjusting plate is connected through the sliding block which is tightly pushed by the reset spring, the sliding block can be upwards pushed to reset, the quick operation is facilitated to detect, the interference is avoided, the thread adjustment cannot be interfered, and the operation is convenient and stable.

Drawings

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

FIG. 2 is a schematic cross-sectional view of a valve seat according to the present invention;

fig. 3 is a partial schematic view of the connection of the tapered blocks of the present invention.

The reference numbers in the figures illustrate:

1. a valve body; 11. a cut-off hole; 12. a communicating hole; 13. a valve seat; 14. adjusting the cavity; 15. a cover plate; 16. an adjusting plate; 17. adjusting the threaded hole; 2. adjusting the threaded rod; 21. connecting blocks; 22. a screw; 23. A conical block; 24. a seal ring; 25. a hand wheel; 26. a sliding groove; 27. a return spring; 28. and a slider.

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. 1-3, for the high purity gas needle stop valve of the present invention, including a valve body 1, please refer to fig. 1 and 3, one side of the valve body 1 is provided with a stop hole 11 for sealing and stopping, which is convenient for operation and use, both ends of both side surfaces of the stop hole 11 are provided with communication holes 12, the other side of the valve body 1 is provided with a valve seat 13, the inside of the valve seat 13 is provided with an adjusting cavity 14, the upper end of the adjusting cavity 14 is fixedly provided with a cover plate 15, which is convenient for installation and fixation, which is beneficial for disassembly and replacement, and avoids mutual interference, the upper end side of the adjusting cavity 14 is slidably provided with an adjusting plate 16, the adjusting plate 16 is provided with an adjusting threaded hole 17, the side thread of the adjusting threaded hole 17 is provided with an adjusting threaded rod 2, which can be adjusted by thread rotation, so that the conical block, can not become flexible, can not rock after mechanical seal like this, guarantee the stability of stop valve, adjusting threaded rod 2's lower extreme is equipped with connecting block 21, and there is conical block 23 connecting block 21's lower surface through screw 22 fixed mounting, and conical block 23's sliding surface connects in the top of ending hole 11, promptly, conical block 23 can slide from top to bottom in adjusting cavity 14, and conical block 23's fixed surface installs sealing ring 24, guarantees the leakproofness of junction, avoids leaking, can not influence sliding adjustment about simultaneously, and sealing ring 24's sliding surface connects in the internal surface who adjusts cavity 14.

As shown in fig. 1 and 2, a hand wheel 25 is fixedly installed at the upper end of the adjusting threaded rod 2, so that the adjusting is convenient to rotate from the upper end, the adjusting is stable and efficient, the hand wheel 25 is rotatably connected to the middle part of the upper end surface of the valve seat 13, sliding grooves 26 are respectively formed in the two side surfaces of the adjusting cavity 14, a return spring 27 is fixedly installed on the side surface of each sliding groove 26, a sliding block 28 is slidably installed at the lower end of each return spring 27, the return springs 27 can be pushed upwards to ensure the stability of the adjusting plate 16, the return springs 27 cannot act during the thread adjusting and sealing, so that the stop sealing effect cannot be affected, when the opening state needs to be rapidly stopped, the hand wheel 25 is pushed downwards, the adjusting threaded rod 2 can be directly pushed downwards to drive the conical block 23 to downwards, the manual sealing can be achieved, at the moment, the, do benefit to and end to detect temporarily, guarantee the safety and stability that the valve used, adaptability is high, and the upper end fixed connection of sliding block 28 is in the both sides surface of regulating plate 16.

When in use, the valve body 1 can be installed on a pipeline, and during operation, the valve body can be adjusted by rotating the screw thread, so that the conical block 23 at the lower end can be tightly propped against the stop hole 11 for sealing, and simultaneously, the adjusting plate 16 can be ensured to be tightly propped upwards without looseness, so that the valve body does not shake after mechanical sealing, the stability of stopping is ensured, meanwhile, the conical block 23 can be tightly propped upwards through the reset spring 27, the stability of the adjusting plate 16 is ensured, and when the screw thread is adjusted and sealed, the reset spring 27 can not act, so that the stopping sealing effect can not be influenced, and when the valve needs to be quickly stopped in an opening state, the hand wheel 25 is pushed downwards, the adjusting screw rod 2 can be directly pushed downwards to drive the conical block 23 to be downwards, the sliding block can be manually sealed, at the moment, the sliding block 28 is supported downwards in the sliding groove 26 in, the adaptability is high.

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 high-purity gas aciculiform stop valve, includes the valve body, its characterized in that, one side of valve body is equipped with and ends the hole, both sides surface both ends that end the hole all are equipped with the intercommunicating pore, the opposite side of valve body is equipped with the disk seat, the inside of disk seat is equipped with adjusts the cavity, the upper end fixed mounting who adjusts the cavity has the apron, the upper end side slidable mounting who adjusts the cavity has the regulating plate, be equipped with adjusting screw hole on the regulating plate, adjusting screw hole's side thread installs adjusting threaded rod, adjusting threaded rod's lower extreme is equipped with the connecting block, there is the toper piece the lower surface of connecting block through screw fixed mounting, the surperf.

2. The high purity gas needle stop valve of claim 1 wherein a sealing ring is fixedly mounted to a surface of said conical block, said sealing ring having a surface slidably attached to an inner surface of the adjustment cavity.

3. The high purity gas needle stop valve according to claim 1, wherein a hand wheel is fixedly installed at an upper end of the adjusting screw rod, and the hand wheel is rotatably connected to a middle portion of an upper end surface of the valve seat.

4. The high purity gas needle stop valve according to claim 1, wherein the adjustment cavity is provided at both side surfaces thereof with a sliding groove, and a return spring is fixedly installed at a side surface of the sliding groove.

5. The high purity gas needle stop valve according to claim 4, wherein the lower end of the return spring is slidably mounted with a sliding block, and the upper end of the sliding block is fixedly connected to both side surfaces of the adjusting plate.