CN218480168U

CN218480168U - High gas tightness industrial chemicals carries stop valve

Info

Publication number: CN218480168U
Application number: CN202222233204.2U
Authority: CN
Inventors: 刘灯; 徐金海; 刘传
Original assignee: Huafeng Valve Zhejiang Co ltd
Current assignee: Huafeng Valve Zhejiang Co ltd
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2023-02-14
Anticipated expiration: 2032-08-24

Abstract

The utility model discloses a high gas tightness industrial chemicals carries stop valve, including valve body, valve clack and valve rod, the valve rod passes through external screw thread one and valve body threaded connection, and the valve clack is located the valve rod bottom, and the valve clack bottom is equipped with rubber seal one, and the valve body inner wall is equipped with the bracing piece in rubber seal one below, and the bracing piece top is equipped with the disc, and the disc inner wall is equipped with sliding connection's roof. The utility model increases the sealing performance between the valve clack and the valve body by means of the deformation generated by the rubber sealing ring, improves the sealing performance of the device, avoids the leakage condition, and can generate multiple sealing action between the valve clack and the valve body, thereby increasing the reliability of the device; meanwhile, the connecting port and the valve port can be tightly connected together, and the threaded sleeve is sleeved at the connecting part of the connecting port and the valve port, so that the sealing property of the connecting port and the valve port after connection can be improved, the possibility of permeation is reduced, and the reliability of the device is increased again.

Description

High gas tightness industrial chemicals carries stop valve

Technical Field

The utility model relates to a stop valve technical field specifically is a high gas tightness industrial chemicals carries stop valve.

Background

Chemical raw materials can be generally divided into two main types, namely organic chemical raw materials and inorganic chemical raw materials. The state of the pipeline conveying device comprises various forms such as gas, liquid, flowable solid and the like, and the pipeline conveying device is generally used for pipeline conveying, and a stop valve is inevitably required to be installed on a pipeline for conveying and used for controlling the conveying of chemical raw materials. The stop valve is a tool which makes the sealing surface of the valve clack and the sealing surface of the valve seat tightly attached by the pressure of a valve rod to prevent the medium from flowing, belongs to a forced sealing valve and is one of valves widely used. The stop valve is divided into a straight-through stop valve, an angle stop valve and a plunger stop valve according to the channel direction.

The chemical raw material has a high flow speed during conveying, and the valve clack is easy to damage due to large fluid resistance borne by the valve clack when the stop valve operates for a long time, so that the stop valve is prone to leakage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a stop valve is carried to high gas tightness industrial chemicals to solve the problem that proposes in the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a high gas tightness industrial chemicals carries stop valve, includes valve body, valve clack and valve rod, the valve rod pass through external screw thread one with valve body threaded connection, the valve clack is located the valve rod bottom, the valve clack bottom is equipped with rubber seal one, the valve body inner wall in rubber seal one below is equipped with the bracing piece, the bracing piece top is equipped with the disc, the disc inner wall is equipped with sliding connection's roof.

Furthermore, both sides of the valve body are respectively provided with a through valve port, the outer wall of the valve port is matched with a connecting port, the outer wall of the connecting port is sleeved with a first threaded sleeve, an external thread II is arranged outside the first threaded sleeve, and the outer wall of the valve port is sleeved with a second threaded sleeve which is meshed with the external thread II.

Furthermore, a sealing washer is arranged between the valve port and the connecting port, the sealing washer can increase the friction force between the valve port and the connecting port, so that the sealing performance between the connecting port and the valve port can be increased, and the inner wall of the second threaded sleeve is provided with a second internal thread which is meshed with the second external thread, so that the second threaded sleeve can move towards the inside of the second threaded sleeve through the second internal thread and the second external thread which are meshed with each other.

Further, valve rod one end extends to the valve body outside is equipped with the hand wheel, the valve body inner wall be equipped with an external screw thread engaged with internal thread one, utilize the steerable valve rod of hand wheel to rotate, the valve rod rotates and can drive an external screw thread and remove, because external screw thread one meshes with internal thread one mutually, according to the thread engagement principle, consequently can reciprocate in the vertical direction to the valve rod, realizes the threaded connection between valve rod and the valve body.

Furthermore, a pressing sheet is arranged on the outer wall of the valve rod above the valve clack, a rubber sealing ring II is arranged on the inner wall of the valve body below the pressing sheet, the pressing sheet is driven to move downwards by the downward movement of the valve clack, and after the pressing sheet is contacted with the rubber sealing ring II and continuously moves downwards, the rubber sealing ring II is deformed, so that the rubber sealing ring II can be in close contact with the outer surface of the valve clack, and the sealing performance between the valve clack and the valve body can be improved.

Further, the roof with be equipped with a plurality of spring between the disc, when the roof moved down by pressure, it can produce pressure to the spring, made the spring take place compression deformation, when the roof did not receive pressure, produced bounce-back after the spring compression deformation can drive the roof and shift up this moment, increased the distance between roof and the disc, the disc inner wall is equipped with a plurality of through-hole, because the roof shifts up and leaves the space between its and the disc that makes, consequently the industrial chemicals who carries also can pass and flow behind the through-hole to the velocity of flow when multiplicable transport industrial chemicals.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is:

1. the utility model discloses a set up rubber seal one, bracing piece, disc, roof, preforming, rubber seal two, spring and through-hole, rely on rubber seal to produce the leakproofness that deformation increased between valve clack and the valve body, improve the leakproofness of this device, avoid appearing the condition of seepage to this device can be to producing multiple sealed effect between valve clack and the valve body, increases the reliability of this device.

2. The utility model discloses a set up threaded sleeve one, external screw thread two, threaded sleeve two and seal ring, can make connector and valve port zonulae occludens together, and threaded sleeve overlaps the junction of locating connector and valve port to can improve the leakproofness after connector and valve port are connected, reduce the infiltration possibility, increase the reliability of this device once more.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the principles of the invention. In the drawings:

FIG. 1 is a front view of the present invention as a whole;

FIG. 2 is an overall front sectional view of the present invention;

FIG. 3 is a front sectional view of the disk of the present invention;

fig. 4 is a schematic structural view of the first threaded sleeve of the present invention;

in the figure: 1. a valve body; 2. a valve flap; 3. a valve stem; 4. the first external thread; 5. a first rubber sealing ring; 6. a support bar; 7. a disc; 8. a top plate; 9. a valve port; 10. a connecting port; 11. a first threaded sleeve; 12. a second external thread; 13. a second threaded sleeve; 14. a sealing gasket; 15. a hand wheel; 16. tabletting; 17. a rubber sealing ring II; 18. a spring; 19. and a through hole.

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.

Referring to fig. 1-4, the present invention provides a technical solution: the high-airtightness stop valve for conveying the chemical raw materials comprises a valve body 1, a valve clack 2 and a valve rod 3, wherein the valve rod 3 is in threaded connection with the valve body 1 through an external thread I4, the valve clack 2 is located at the bottom of the valve rod 3, a rubber seal ring I5 is arranged at the bottom of the valve clack 2, a support rod 6 is arranged below the rubber seal ring I5 on the inner wall of the valve body 1, a disc 7 is arranged at the top of the support rod 6, a top plate 8 in sliding connection is arranged on the inner wall of the disc 7, a through valve port 9 is respectively arranged on two sides of the valve body 1, a connecting port 10 is fitted on the outer wall of the valve port 9, a first threaded sleeve 11 is sleeved on the outer wall of the connecting port 10, a second external thread 12 is arranged outside the first threaded sleeve 11, a second threaded sleeve 13 meshed with the second external thread 12 is sleeved on the outer wall of the valve port 9, a sealing washer 14 is arranged between the valve port 9 and the connecting port 10, a second internal thread inner wall of the threaded sleeve 13 is provided with a second external thread 12, one end of the valve rod 3 extends to the outer wall of the valve body 1, a hand wheel 15 is arranged on the outer wall of the valve body, a pressing piece 16 pressing piece is arranged below the disc 7, and a plurality of pressing pieces 16 pressing pieces are arranged below the disc 7 inner wall of the disc 7.

The specific implementation mode is as follows: when the device is used, one end of the connecting port 10 is connected with a pipeline for conveying chemical raw materials, then the valve port 9 and the connecting port 10 can be attached together, the first threaded sleeve 11 is rotated to enable one end of the first threaded sleeve to move to the inside of the second threaded sleeve 13, the second external thread 12 on the outer wall of the first threaded sleeve 11 is meshed with the second internal thread on the inner wall of the second threaded sleeve 13 and gradually moves towards the inside of the second threaded sleeve 13, because the first threaded sleeve 11 and the outer wall of the connecting port 10 are both provided with bulges, the first threaded sleeve 11 can increase the friction force between the valve port 9 of the connecting port 10, so that the sealing performance after the connecting port 10 is connected with the valve port 9 can be improved, after the operation is completed, the chemical raw materials can be conveyed, when the chemical raw materials are required to be stopped to be conveyed, the valve rod 3 can be rotated by using the hand wheel 15, the valve rod 3 can be meshed with the first external thread 4 to move downwards, the valve rod 3 can move downwards to drive the valve clack 2 to move downwards, when the rubber seal ring I5 at the bottom of the valve clack 2 contacts with the top plate 8, pressure is generated on the top plate 8, so that the top plate 8 moves downwards, when the top plate 8 moves downwards to be completely matched with the disc 7, the top plate 8 cannot move downwards, at the same time, the rubber seal ring I5 generates reverse force to the rubber seal ring I5, so that the rubber seal ring I5 generates deformation, and after the rubber seal ring I5 deforms, the friction force with the inner wall of the valve body 1 can be increased, so that the sealing performance of the valve clack 2 can be increased, the leakage situation can be avoided, meanwhile, the pressing sheet 16 can be driven to move downwards when the valve clack 2 moves downwards, when the pressing sheet 16 generates force to the rubber seal ring II 17, so that the sealing performance between the valve clack 2 and the valve body 1 can be increased, the reliability of the device can be improved again, when the raw material conveying needs to be controlled to continue, the valve clack 2 moves upwards, at the moment, the rebound force generated after the spring 18 is compressed can drive the top plate 8 to move upwards, increase the clearance between roof 8 and the disc 7, and fluidic industrial chemicals can flow from through-hole 19, increase the velocity of flow that industrial chemicals carried, this application is through setting up rubber seal 5, bracing piece 6, disc 7, roof 8, preforming 16, rubber seal 17, spring 18 and through-hole 29, rely on rubber seal to produce deformation and increase the leakproofness between valve clack 2 and the valve body 1, improve the leakproofness of this device, avoid appearing the condition of seepage, and this device can be to the multiple sealing effect of producing between valve clack 2 and the valve body 1, increase the reliability of this device, through setting up threaded sleeve 11, external screw thread 12, threaded sleeve 13 and seal ring 14, can make connector 10 and valve port 9 zonulae occludens together, and threaded sleeve cover locates the junction of connector 10 and valve port 9, thereby can improve the leakproofness after connector 10 and the valve port 9 are connected, reduce the infiltration possibility, increase the reliability of this device again.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a high gas tightness industrial chemicals carries stop valve, includes valve body (1), valve clack (2) and valve rod (3), its characterized in that: valve rod (3) through external screw thread (4) with valve body (1) threaded connection, valve clack (2) are located valve rod (3) bottom, valve clack (2) bottom is equipped with rubber seal ring (5), valve body (1) inner wall in rubber seal ring (5) below is equipped with bracing piece (6), bracing piece (6) top is equipped with disc (7), disc (7) inner wall is equipped with sliding connection's roof (8).

2. The high-airtightness chemical raw material conveying stop valve according to claim 1, wherein: the valve comprises a valve body (1) and is characterized in that two sides of the valve body (1) are respectively provided with a through valve port (9), the outer wall of the valve port (9) is matched with a connecting port (10), a first threaded sleeve (11) is sleeved on the outer wall of the connecting port (10), a second external thread (12) is arranged outside the first threaded sleeve (11), and a second threaded sleeve (13) meshed with the second external thread (12) is sleeved on the outer wall of the valve port (9).

3. The high-airtightness chemical raw material conveying stop valve according to claim 2, wherein: a sealing gasket (14) is arranged between the valve port (9) and the connecting port (10), and an internal thread II meshed with the external thread II (12) is arranged on the inner wall of the threaded sleeve II (13).

4. The high-airtightness chemical raw material conveying stop valve according to claim 1, wherein: valve rod (3) one end extends to the valve body (1) outside is equipped with hand wheel (15), valve body (1) inner wall be equipped with external screw thread (4) engaged with internal thread one.

5. The high-airtightness chemical raw material conveying stop valve according to claim 1, wherein: the outer wall of the valve rod (3) is provided with a pressing sheet (16) above the valve clack (2), and the inner wall of the valve body (1) is provided with a rubber sealing ring II (17) below the pressing sheet (16).

6. The high-airtightness chemical raw material conveying stop valve according to claim 1, wherein: a plurality of springs (18) are arranged between the top plate (8) and the disc (7), and a plurality of through holes (19) are formed in the inner wall of the disc (7).