CN214662171U

CN214662171U - Open-type gate valve capable of rapidly replacing corrugated pipe

Info

Publication number: CN214662171U
Application number: CN202120643442.3U
Authority: CN
Inventors: 刘俊军; 张立国
Original assignee: Hebei Lianchang Machinery Manufacturing Co ltd
Current assignee: Hebei Lianchang Machinery Manufacturing Co ltd
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2021-11-09
Anticipated expiration: 2031-03-30

Abstract

The utility model discloses a but open-type push-pull valve of quick replacement bellows, including valve body, valve plate, top clamping mechanism and running plate mechanism, the valve body passes through the connected mode of flange can be dismantled and be connected with split type bellows, in split type bellows is provided with the reinforcement with the junction of the attach fitting of valve body. The utility model discloses a when the bellows damages, directly change reserve bellows can, need not pull down the valve and return the factory maintenance, practiced thrift cost of maintenance, saved repair time. The utility model is suitable for a technical field that open-type push-pull valve reformed transform.

Description

Open-type gate valve capable of rapidly replacing corrugated pipe

Technical Field

The utility model belongs to the technical field of open-type push-pull valve, specific theory relates to an open-type push-pull valve of quick replacement bellows.

Background

The open gate valve is mainly used for gas pipelines of steel enterprises, has the caliber from DN600-DN4000 and plays a role in reliably cutting off the pipeline gas. Because the coal gas contains a large amount of chloride ion mechanical condensed water and other corrosive gases, the gas has strong corrosion effect on the corrugated compensator which is mainly made of stainless steel, and intergranular corrosion and coal gas leakage of the corrugated pipe are caused after the gas is used for a long time, so that the safety of a human body and equipment is threatened. In the past, this situation has required the entire valve to be removed from the pipeline and replaced with a backup valve. And returning the damaged valve of the corrugated pipe to a valve manufacturing plant for integrally disassembling and replacing the new corrugated pipe. High cost, large workload and long period.

The corrugated compensator of the old open type gate valve is welded with the valve body in the valve body, and the valve needs to be returned to a factory for maintenance if the valve is damaged.

SUMMERY OF THE UTILITY MODEL

The utility model provides a but open-type push-pull valve of quick replacement bellows for when the bellows damages, directly change reserve bellows can, need not pull down the valve and return the factory maintenance, practice thrift cost of maintenance, save repair time.

In order to achieve the above object, the utility model adopts the following technical scheme:

the open-type gate valve capable of rapidly replacing the corrugated pipe comprises a valve body, a valve plate, a top-opening clamping mechanism and a plate moving mechanism, wherein the valve body is detachably connected with the split-type corrugated pipe in a flange connection mode, and a reinforcing piece is arranged at the joint of the split-type corrugated pipe and the valve body.

Furthermore, a first connecting flange is formed at the end part of the connecting joint, a second connecting flange is formed at one end, close to the valve body, of the split type corrugated pipe, and the first connecting flange and the second connecting flange are connected through a plurality of fastening bolts.

Furthermore, a first clamping groove and a second clamping groove are formed in the end face, close to the second connecting flange, of the first connecting flange, and penetrate through the inner wall and the outer wall of the first connecting flange respectively, a first clamping block and a second clamping block corresponding to the first clamping groove and the second clamping groove respectively are formed in the end face, close to the second connecting flange, of the second connecting flange, and when the first connecting flange is connected with the second connecting flange, the first clamping block and the second clamping block are clamped in the first clamping groove and the second clamping groove respectively.

Furthermore, first draw-in groove and second draw-in groove symmetry set up, and the opening size of the two all reduces downwards along vertical, and the osculum end of first draw-in groove is greater than the macrostoma end of second draw-in groove.

Further, the reinforcing part comprises a pipe body arranged in the connecting joint and the split type corrugated pipe, and when the connecting joint and the split type corrugated pipe are connected and fastened, two ends of the pipe body are clamped between the connecting joint and the split type corrugated pipe.

Furthermore, one end of the pipe body is detachably connected in the connecting joint in a threaded connection mode, and the outer wall of the part of the pipe body extending into the split type corrugated pipe is matched with the inner wall of the split type corrugated pipe.

The utility model discloses owing to adopted foretell structure, it compares with prior art, and the technical progress who gains lies in: the utility model discloses a bellows with original open-type push-pull valve, by the mode of welded fastening change into through flange joint realize, and then when split type bellows damage need maintain or change, need not all to dismantle whole valve get off, return the factory maintenance again, only need to dismantle split type bellows get off and renew can, but face a problem like this, just the intensity of flange joint's mode is less than the welded intensity, the vibrations or shearing force that both junctions received etc. make its connection become insecure, the utility model discloses a reinforcement that sets up at split type bellows and junction joint junction resists above-mentioned vibrations or shearing force, and then has effectively avoided the problem of connection not hard up, its joint strength is close with the welded connection mode; therefore, the utility model discloses a when the bellows damages, directly change reserve bellows can, need not pull down the valve and return the factory maintenance, practiced thrift cost of maintenance, saved repair time.

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 invention and not to limit the invention.

In the drawings:

FIG. 1 is a schematic structural view of a prior art open-type gate valve;

FIG. 2 is a side view of the connection structure of the split bellows and the valve body according to the embodiment of the present invention;

fig. 3 is a schematic structural view of the connection joint and the split type corrugated pipe according to the embodiment of the present invention after being disassembled;

FIG. 4 is a schematic view of the structure of FIG. 3 from another angle;

fig. 5 is a schematic structural view of the connection joint, the split bellows and the reinforcement of the embodiment of the present invention after being disassembled;

FIG. 6 is a schematic structural view of the connection joint and the reinforcement member of the embodiment of the present invention;

fig. 7 is an axial structural section view of the split bellows according to the embodiment of the present invention.

Labeling components: 1-a valve body, 2-a connecting joint, 3-a first connecting flange, 4-a first clamping groove, 5-a second clamping groove, 6-a split type corrugated pipe, 7-a second connecting flange, 8-a first clamping block, 9-a second clamping block, 10-a pipe body, 11-a plate walking mechanism, 12-a valve plate and 13-a jacking and clamping mechanism.

Detailed Description

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the invention.

The utility model discloses a but open-type push-pull valve of quick replacement bellows, as shown in figure 1, including valve body 1, valve plate 12, top open clamping mechanism 13 and deck mechanism 11, above-mentioned structure is the same with the structure at current open-type push-pull valve's corresponding position, and the difference lies in, as shown in figure 2-7, valve body 1 can dismantle through the connected mode of flange and be connected with split type bellows 6, is provided with the reinforcement in split type bellows 6 and the junction of the attach fitting 2 of valve body 1. The utility model discloses a theory of operation and advantage lie in: the utility model discloses a bellows with original open-type push-pull valve, the mode of changing into through flange joint by the welded fastening realizes, and then when split type bellows 6 damages and needs maintenance or change, need not all to dismantle whole valve, return the factory maintenance again, only need to dismantle split type bellows 6 get off and change new can, but face a problem like this, just the intensity of the mode of flange joint is less than the intensity of welding, the vibrations or shearing force that both junctions received etc. make its connection become insecure, the utility model discloses a reinforcement that sets up at split type bellows 6 and junction joint 2 junction resists above-mentioned vibrations or shearing force, and then has effectively avoided the problem of connection not hard up, its joint strength is close with welded connection mode; therefore, the utility model discloses a when the bellows damages, directly change reserve bellows can, need not pull down the valve and return the factory maintenance, practiced thrift cost of maintenance, saved repair time.

As a preferred embodiment of the present invention, a first connection flange 3 is formed at an end portion of the connection joint 2, a second connection flange 7 is formed at an end portion of the split bellows 6 adjacent to the valve body 1, and the first connection flange 3 and the second connection flange 7 are connected via a plurality of fastening bolts. In order to improve the shearing resistance of the first connecting flange 3 and the second connecting flange 7 after connection, as shown in fig. 3-4, a first clamping groove 4 and a second clamping groove 5 are constructed on the end surface of the first connecting flange 3 close to the second connecting flange 7, the first clamping groove 4 and the second clamping groove 5 respectively penetrate through the inner wall and the outer wall of the first connecting flange 3, a first clamping block 8 and a second clamping block 9 respectively corresponding to the first clamping groove 4 and the second clamping groove 5 are constructed on the end of the second connecting flange 7 close to the first connecting flange 3, and when the first connecting flange 3 is connected with the second connecting flange 7, the first clamping block 8 and the second clamping block 9 are respectively clamped in the first clamping groove 4 and the second clamping groove 5. This embodiment is connected with first flange 3 in order to ensure that second flange 7 is one-way to one-way in order to one-way dismouting, avoids dismouting in-process second flange 7 to bump other ascending parts in the side, and is concrete, and first draw-in

groove

4 and 5 symmetry settings of second draw-in groove, and the opening size of the two all reduces downwards along vertical, and the osculum end of first draw-in groove 4 is greater than the osculum end of second draw-in groove 5. And moreover, the shear resistance of the two connected parts is improved by adopting a reducing design.

As a preferred embodiment of the present invention, as shown in fig. 5, the reinforcing member includes a tube body 10 installed in the connection joint 2 and the split bellows 6, and when the connection joint 2 and the split bellows 6 are fastened, both ends of the tube body 10 are clamped between the connection joint 2 and the split bellows 6. When the connector 2 and the split corrugated pipe 6 are subjected to vibration and shearing force, most of the connecting force is borne by the pipe body 10, and external force applied to the fastening bolt is shared, so that the connecting strength is improved. Wherein, as shown in fig. 6, when the valve body 1 can be connected to the split bellows 6 with different pipe diameters in this embodiment, the pipe body 10 is adapted to the corresponding split bellows 6, one end of the pipe body 10 is detachably connected to the connector 2 by a threaded connection, and the outer wall of the portion of the pipe body 10 extending into the split bellows 6 is adapted to the inner wall of the split bellows 6. When the valve body 1 is connected with different split corrugated pipes 6, the pipe body 10 is of a corresponding type, the radius of one end, connected with the valve body 1, of the pipe body 10 is different, and the radius, extending into the split corrugated pipes 6, of the pipe body 10 is correspondingly changed.

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 in the foregoing embodiments, 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 scope of the protection of the claims of the present invention.

Claims

1. The utility model provides a but open-type push-pull valve of quick replacement bellows, includes valve body, valve plate, top clamping mechanism and carriage mechanism, its characterized in that: the valve body is detachably connected with a split type corrugated pipe through a flange connection mode, and a reinforcing piece is arranged at the joint of the split type corrugated pipe and the connection joint of the valve body.

2. An open gate valve with quick bellows change as claimed in claim 1, wherein: the end part of the connecting joint is provided with a first connecting flange, one end of the split type corrugated pipe close to the valve body is provided with a second connecting flange, and the first connecting flange and the second connecting flange are connected through a plurality of fastening bolts.

3. An open gate valve with quick bellows change as claimed in claim 2, wherein: the first clamping groove and the second clamping groove are formed in the end face, close to the second connecting flange, of the first connecting flange, the first clamping groove and the second clamping groove penetrate through the inner wall and the outer wall of the first connecting flange respectively, a first clamping block and a second clamping block corresponding to the first clamping groove and the second clamping groove respectively are formed in the end face, close to the first connecting flange, of the second connecting flange, and when the first connecting flange is connected with the second connecting flange, the first clamping block and the second clamping block are clamped in the first clamping groove and the second clamping groove respectively.

4. An open gate valve with quick bellows change as claimed in claim 3, wherein: first draw-in groove and second draw-in groove symmetry set up, and the opening size of the two all reduces downwards along vertical, and the osculum end of first draw-in groove is greater than the macrostoma end of second draw-in groove.

5. An open gate valve with quick bellows change as claimed in claim 1, wherein: the reinforcing part comprises a pipe body arranged in the connecting joint and the split type corrugated pipe, and when the connecting joint and the split type corrugated pipe are connected and fastened, two ends of the pipe body are clamped between the connecting joint and the split type corrugated pipe.

6. An open gate valve with quick bellows change as claimed in claim 5, wherein: one end of the pipe body is detachably connected in the connecting joint in a threaded connection mode, and the outer wall of the part, extending into the split corrugated pipe, of the pipe body is matched with the inner wall of the split corrugated pipe.