CN217814994U

CN217814994U - Stop valve rotary lifting rod anti-rotation device

Info

Publication number: CN217814994U
Application number: CN202222036986.0U
Authority: CN
Inventors: 严明; 刘茂年; 张成新; 李凤彪; 孙佳春
Original assignee: Yancheng Fuyang Machinery Manufacturing Co ltd
Current assignee: Yancheng Fuyang Machinery Manufacturing Co ltd
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2022-11-15
Anticipated expiration: 2032-08-02

Abstract

The utility model belongs to the technical field of the stop valve, concretely relates to rotatory lifter rotational lock of stop valve, including the rotatory lifting rod body, valve body and setting hand wheel and the valve clack in rotatory lifting rod body top and bottom, the fixed cover of surface of the rotatory lifting rod body is equipped with down spacing anti-rotation ring, the top fixed mounting of valve body inner wall has last spacing anti-rotation ring. The utility model discloses a lower spacing anti-rotating ring, rubber seal, spacing swivel nut with have with the last spacing anti-rotating ring of spacing anti-rotating ring and the unsmooth adaptation of rubber seal looks down, but the rotatory lift of the rotatory body of rod of rotation lift is to preventing changeing after a position, the device has reached and has prevented changeing purpose to the rotatory lifter of stop valve, carry on spacingly to it betterly, the normal work and the use of stop valve have been guaranteed, still carry out the auxiliary stay to relevant department betterly, the relative safety stability and the sealed effect of stop valve have been improved.

Description

Stop valve rotary lifting rod anti-rotation device

Technical Field

The utility model belongs to the technical field of the stop valve, concretely relates to rotatory lifter rotational lock of stop valve.

Background

The stop valve is also called stop valve, belonging to forced sealing type valve, and mainly uses the drive of rotating lifting rod to drive valve clack to lift so as to attain the goal of opening and closing, connecting and cutting medium of stop valve. However, when the valve flap is driven by the rotating lifting rod to ascend, the rotation of the existing rotating lifting rod is mostly prevented through the valve flap, the top of the valve flap moving upwards along with the rotating lifting rod is directly contacted with the inner wall surface of the stop valve so as to prevent the rotating lifting rod from rotating and blocking, the mode easily causes abrasion on the top of the valve flap to influence the normal use of the stop valve, and therefore the anti-rotation device for the rotating lifting rod of the stop valve is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: aims to provide a stop valve rotating lifting rod anti-rotation device to solve the problems in the prior art.

In order to realize the technical purpose, the utility model adopts the following technical scheme:

the technical scheme of the utility model is that the anti-rotation device for the rotary lifting rod of the stop valve comprises a rotary lifting rod body, a valve body, and a hand wheel and a valve clack which are arranged at the top and the bottom of the rotary lifting rod body, wherein the outer surface of the rotary lifting rod body is fixedly sleeved with a lower limiting anti-rotation ring, the top of the inner wall of the valve body is fixedly provided with an upper limiting anti-rotation ring, the top of the lower limiting anti-rotation ring is provided with a rubber sealing ring, the inner part of the rubber sealing ring is fixedly sleeved on the outer surface of the rotary lifting rod body, the inner part of the upper limiting anti-rotation ring is respectively provided with a sealing cavity and a limiting cavity which are in concave-convex fit with the rubber sealing ring and the lower limiting anti-rotation ring, and the sealing cavity is communicated with the limiting cavity;

the outer surface threaded connection of the rotatory body of rod that goes up and down has the nut, nut fixed connection is at the top of valve body the hand wheel extremely be equipped with spacing swivel nut between the nut, the inside of wearing to locate the valve body is sealed to the surface of the rotatory body of rod that goes up and down.

Further inject, there are two supports at the top of the valve body through bolt fixed mounting, the top of the support is fixedly connected with the limiting screw sleeve, and the inside of the limiting screw sleeve is connected with the outer surface thread of the rotary lifting rod body.

Further inject, the top fixedly connected with of spacing swivel nut consolidates wear-resisting gasket, just the rotatory body of rod is located the inside of consolidating wear-resisting gasket.

Further inject, the upper and lower spacing anti-rotation rings are both located between the hand wheel and the valve clack, and the upper spacing anti-rotation ring is located right above the lower spacing anti-rotation ring.

Further defined, the valve flap is located within the valve body.

Drawings

The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings;

fig. 1 is a schematic view of the overall cross-sectional structure of the present invention.

Fig. 2 is a schematic view of the specific structure of the upper limiting anti-rotation ring section of the utility model.

Fig. 3 is a schematic view of the local specific structure of the rotary lifting rod of the present invention.

The main element symbols are as follows:

1. rotating the lifting rod body; 2. a valve body; 3. a hand wheel; 4. a valve flap; 5. a nut; 6. a lower limiting anti-rotation ring; 7. an upper limiting anti-rotation ring; 8. a rubber seal ring; 9. sealing the cavity; 10. a limiting cavity; 11. a support; 12. a limiting screw sleeve; 13. and (6) reinforcing the wear-resistant gasket.

Detailed Description

In order to make the present invention better understood by those skilled in the art, the technical solutions of the present invention are further described below with reference to the accompanying drawings and examples.

The first embodiment of the present application is:

as shown in fig. 1-3, the utility model discloses a stop valve rotating lifting rod rotation-preventing device, including the rotating lifting rod body 1, the valve body 2 and set up hand wheel 3 and valve clack 4 at the top and bottom of the rotating lifting rod body 1, the outer surface of the rotating lifting rod body 1 is fixed with the lower spacing anti-rotation ring 6, the top of the inner wall of the valve body 2 is fixedly installed with the upper spacing anti-rotation ring 7, the top of the lower spacing anti-rotation ring 6 is equipped with the rubber seal ring 8, and the inner part of the rubber seal ring 8 is fixed on the outer surface of the rotating lifting rod body 1, the inner part of the upper spacing anti-rotation ring 7 is respectively provided with the seal cavity 9 and the spacing cavity 10 which are in concave-convex fit with the rubber seal ring 8 and the lower spacing anti-rotation ring 6, the seal cavity 9 is communicated with the spacing cavity 10;

the outer surface threaded connection of the rotatory body of rod 1 that goes up and down has nut 5, and nut 5 fixed connection is equipped with spacing swivel nut 12 at the top of valve body 2 between 3 to nut 5 from the hand wheel, and the inside of valve body 2 is worn to locate in the surface seal of the rotatory body of rod 1 that goes up and down.

In the embodiment, the lower limiting anti-rotation ring 6, the rubber seal ring 8, the limiting screw sleeve 12 and the upper limiting anti-rotation ring 7 with concave-convex fit with the lower limiting anti-rotation ring 6 and the rubber seal ring 8 can rotate and lift the rotary lifting rod body 1 to a certain position for rotation prevention, namely, the rotary lifting rod body 1 in threaded connection with the nut 5 and the limiting screw sleeve 12 can be driven by hands, tools and the like through the hand wheel 3 to move up or down according to needs, and further the lower limiting anti-rotation ring 6 and the rubber seal ring 8 on the rotary lifting rod body 1 move up and down in a synchronous manner, when the rotary lifting rod body 1 moves up to and contacts with the limiting cavity 10 and the sealing cavity 9, the lower limiting anti-rotation ring 6 can not move up under the block of the upper limiting anti-rotation ring 7, and further the rotary lifting rod body 1 can not move up, and the rotary lifting rod body 1 which can not move up and is in threaded connection with the nut 5 and the limiting screw sleeve 12 can not rotate, so that the rotary lifting rod body 1 can not rotate down to prevent the valve clack 4 from contacting with the stop valve body 2, and the stop valve body 2 from being directly when the rotary lifting rod body 2 and the rotary lifting rod body 2 move down, and the stop valve body 2, and the rotary lifting rod body 2 can not be connected with the stop valve body, and the stop valve body 4, carry on spacingly to the rotation lift body of rod 1 betterly, and then guaranteed the normal work and the use of stop valve and rotation lift pole etc., the lift of avoiding the rotation lift body of rod 1 exceeds certain extent and causes the accident, still carry out the auxiliary stay to relevant department betterly, the security and the stability of stop valve have been improved, rubber seal 8 is current, this application text is no longer repeated, and spacing anti-rotating ring 6 and rubber seal 8 shift up to spacing chamber 10 and sealed chamber 9 in and rather than in close contact with down, still can increase the relative leakproofness of last spacing anti-rotating ring 7 department, and then improved the relative sealed effect of valve body 2.

The second embodiment of the present application is:

on the basis of embodiment one, two rotatory lifter rotational lock of stop valve of this embodiment still include that bolt fixed mounting has two supports 11 at the top of valve body 2, the top and the spacing swivel nut 12 fixed connection of support 11, and the inside of the spacing swivel nut 12 and the surface threaded connection of the rotatory body of rod 1 of going up and down, wear-resisting gasket 13 is consolidated to the top fixedly connected with of the spacing swivel nut 12, and the rotatory body of rod 1 of going up and down is located the inside of consolidating wear-resisting gasket 13

As shown in the attached drawing 1, the limit screw sleeve 12 can be supported and fixed through the support 11, when the relative stability of the limit screw sleeve 12 is improved, the limit screw sleeve 12 and the nut 5 are kept at a certain distance, interference caused by contact between the limit screw sleeve and the nut is prevented, the support 11 and the limit screw sleeve 12 can be disassembled and replaced, the limit screw sleeve 12 and the like can play a certain rotation prevention role in the rotating lifting rod body 1, the contact surface and the stability of the rotating lifting rod body 1 are increased, and the top of the limit screw sleeve 12 can be reinforced through the reinforcing wear-resistant gasket 13, so that the hand wheel 3 is prevented from being directly contacted with the limit screw sleeve 12.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention shall be covered by the claims of the present invention.

Claims

1. The utility model provides a rotatory lifter rotational lock of stop valve, includes the rotatory body of the lifting rod (1), valve body (2) and sets up hand wheel (3) and valve clack (4) in the rotatory body of the lifting rod (1) top and bottom, its characterized in that: the outer surface of the rotary lifting rod body (1) is fixedly sleeved with a lower limiting anti-rotation ring (6), the top of the inner wall of the valve body (2) is fixedly provided with an upper limiting anti-rotation ring (7), the top of the lower limiting anti-rotation ring (6) is provided with a rubber sealing ring (8), the inner part of the rubber sealing ring (8) is fixedly sleeved on the outer surface of the rotary lifting rod body (1), the inner part of the upper limiting anti-rotation ring (7) is respectively provided with a sealing cavity (9) and a limiting cavity (10) which are in concave-convex fit with the rubber sealing ring (8) and the lower limiting anti-rotation ring (6), and the sealing cavity (9) is communicated with the limiting cavity (10);

the surface threaded connection of the rotatory body of rod (1) that goes up and down has nut (5), nut (5) fixed connection is at the top of valve body (2), follows hand wheel (3) extremely be equipped with spacing swivel nut (12) between nut (5), the inside of valve body (2) is worn to locate by the surface seal of the rotatory body of rod (1) that goes up and down.

2. The anti-rotation device for the rotary lifting rod of the stop valve according to claim 1, characterized in that: the top of valve body (2) has two supports (11) through bolt fixed mounting, the top and the spacing swivel nut (12) fixed connection of support (11), just the inside of spacing swivel nut (12) and the surface threaded connection of rotatory lifting rod body (1).

3. The anti-rotation device for the rotary lifting rod of the stop valve according to claim 2, characterized in that: the top fixedly connected with of spacing swivel nut (12) consolidates wear-resisting gasket (13), just the rotatory body of rod (1) that goes up and down is located the inside of consolidating wear-resisting gasket (13).

4. The anti-rotation device for the rotary lifting rod of the stop valve according to claim 1, characterized in that: go up spacing anti-rotating ring (7) and lower spacing anti-rotating ring (6) and all be located between hand wheel (3) and valve clack (4), just go up spacing anti-rotating ring (7) and be located down spacing anti-rotating ring (6) directly over.

5. The anti-rotation device for the rotary lifting rod of the stop valve according to claim 4, wherein: the valve clack (4) is positioned inside the valve body (2).