CN216242321U

CN216242321U - Stop valve with anti-blocking mechanism

Info

Publication number: CN216242321U
Application number: CN202123063138.0U
Authority: CN
Inventors: 黄辉; 许良坤
Original assignee: Zhejiang Water Resources Technology Co ltd
Current assignee: Zhejiang Water Resources Technology Co ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-04-08
Anticipated expiration: 2031-12-08

Abstract

The utility model discloses a stop valve with an anti-blocking mechanism, which comprises a valve body, a valve plug core and a movable pipeline, wherein the valve plug core is arranged at the left end of the valve body, the central point of the upper end of the valve plug core is rotatably connected with a rotating rod, the top end of the rotating rod is fixedly connected with a rotating disc, the upper end surface of the valve plug core is fixedly connected with a second sleeve, the second sleeve is connected with the inner side wall of the first sleeve in a sliding manner through a telescopic spring and a micro sealing ring, and the middle of the valve body is fixedly connected with a rubber plate. The movable pipeline, the filter screen, the rubber plate and the sealing rubber ring are arranged, so that the model of the filter screen can be conveniently selected according to the actually conveyed fluid in the use process, and the movable pipeline can be detached to clean the interior of the valve body in the use process, so that the service life of the valve body can be prolonged while the valve body is effectively prevented from being blocked after long-time use, and the valve body has good practical value.

Description

Stop valve with anti-blocking mechanism

Technical Field

The utility model relates to the technical field of stop valves, in particular to a stop valve with an anti-blocking mechanism.

Background

The stop valve is also called a stop valve, belonging to a forced sealing type valve, so when the valve is closed, pressure must be applied to a valve clack to prevent a sealing surface from leaking, when a medium enters the valve from the lower part of the valve clack, the resistance to be overcome by an operating force is the friction force of a valve rod and a filler and the thrust generated by the pressure of the medium, the force for closing the valve is larger than the force for opening the valve, so the diameter of the valve rod is larger, otherwise, the failure of the valve rod bending can occur, and the stop valve is divided into three types according to the connection mode: the valve is characterized in that the valve body is provided with a valve clack, a valve body is arranged in the valve cavity, the valve clack is arranged in the valve cavity, the valve body is provided with a valve clack, the valve clack is connected with the valve body through a flange, a screw thread and a welding connection, the medium flow direction of the stop valve enters the valve cavity from the upper part of the valve clack, the force for closing the valve is small under the action of medium pressure, the force for opening the valve is large, the diameter of the valve rod can be correspondingly reduced, meanwhile, the valve in the form is tighter under the action of the medium, the three changes of the valve are specified in China, the flow direction of the stop valve is uniformly from top to bottom, the opening height of the valve clack is 25% -30% of the nominal diameter when the stop valve is opened, the flow reaches the maximum, the valve reaches the full opening position, the full opening position of the stop valve is determined by the stroke of the valve clack, the application of the stop valve with an anti-blocking mechanism is wider, and the demand for the stop valve with the anti-blocking mechanism is growing day by day.

Most stop valves on the market do not have the structure that prevents to block up at the in-process that uses, and the condition that the inside jam of valve body can appear after such stop valve appears for a long time takes place, need wholly change the valve body, does not have the setting of maintaining the clearance to the valve body in the in-process that uses moreover, and such stop valve is when carrying the more fluid of impurity, and life is shorter relatively, consequently, proposes a stop valve with anti-blocking mechanism to above-mentioned problem.

Disclosure of Invention

The present invention is directed to a shut-off valve with an anti-blocking mechanism to solve the above-mentioned problems of the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a stop valve with prevent stifled mechanism, includes valve body, valve sprue and movable pipeline, the valve body left end is equipped with valve sprue, valve sprue upper end central point rotates and is connected with the dwang, dwang top fixedly connected with rolling disc, valve sprue up end fixedly connected with second sleeve pipe, the second sleeve pipe passes through telescopic spring and miniature sealing washer and is in the same place with first sleeve intraductal lateral wall sliding connection, fixedly connected with rubber slab in the middle of the valve body, the sealed rubber ring of fixedly connected with in the middle of the rubber slab right-hand member face, the inboard sliding connection of sealed rubber ring has the movable pipeline, the inboard fixedly connected with filter screen of movable pipeline left end.

Preferably, the dwang upper end is threaded setting, the position of dwang upper end is in the same place through screw thread and fixed bolster spiral connection, the perpendicular cross-section of fixed bolster is the setting of "U" type, and the position and the valve body up end fixed connection of fixed bolster bottom are in the same place.

Preferably, the movable pipeline is in a cylindrical shape, a fixing nut is fixedly connected to the outer side of the right end of the movable pipeline, the outer side of the right end of the movable pipeline is provided with threads, and the right end of the movable pipeline is in threaded connection with the right end face of the valve body through the threads.

Preferably, the middle of the rubber plate is provided with an eyelet, and the central point of the eyelet arranged in the middle of the rubber plate and the central point of the movable pipeline are arranged on the same horizontal plane.

Preferably, the first sleeve and the second sleeve are both arranged in a cylindrical manner, the number of the micro sealing rings is two, and the inner side and the outer side of the upper end of the second sleeve are fixedly connected with the micro sealing rings.

Preferably, be the vertically setting between the up end of dwang and valve body, rotate between dwang and the valve body and link together.

The utility model has the beneficial effects that:

compared with the prior art, the movable pipeline, the filter screen, the rubber plate and the sealing rubber ring are arranged, so that the model of the filter screen can be conveniently selected according to the actually conveyed fluid in the use process, and the movable pipeline can be detached to clean the interior of the valve body in the use process, so that the valve body can be effectively prevented from being blocked after being used for a long time, the service life of the valve body can be prolonged, and the valve has good practical value;

compared with the prior art, through the first pipeline, the second pipe box, expanding spring and the miniature sealing washer that set up, can carry out stable spacing to valve stifled core when the in-process that uses can improve device overall structure leakproofness, have good practicality, be worth carrying on extensive popularization and use.

Drawings

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

FIG. 2 is a schematic view of the structure of FIG. 1 at A according to the present invention;

FIG. 3 is a schematic view of the structure at B in FIG. 2 according to the present invention.

Detailed Description

The utility model is described in further detail below with reference to the following figures and detailed description:

referring to fig. 1-3, the utility model provides a stop valve with an anti-blocking mechanism, which comprises a valve body 1, a valve plug core 3 and a movable pipeline 7, wherein the valve plug core 3 is arranged at the left end of the valve body 1, a rotating rod 4 is rotatably connected to the central point of the upper end of the valve plug core 3, a rotating disc 2 is fixedly connected to the top end of the rotating rod 4, a second sleeve 12 is fixedly connected to the upper end face of the valve plug core 3, the second sleeve 12 is slidably connected with the inner side wall of a first sleeve 10 through a telescopic spring 9 and a micro seal ring 11, a rubber plate 6 is fixedly connected to the middle of the valve body 1, a seal rubber ring 14 is fixedly connected to the middle of the right end face of the rubber plate 6, the movable pipeline 7 is slidably connected to the inner side of the seal rubber ring 14, and a filter screen 15 is fixedly connected to the inner side of the left end of the movable pipeline 7.

The upper end of the rotating rod 4 is provided with threads, the upper end of the rotating rod 4 is in threaded connection with the fixed support 5 through the threads, the vertical section of the fixed support 5 is in a U-shaped arrangement, the bottom end of the fixed support 5 is fixedly connected with the upper end face of the valve body 1, and the valve plug 3 can be adjusted to move up and down through rotating the rotating rod 4 in the using process; the movable pipeline 7 is arranged in a cylindrical shape, the outer side of the right end of the movable pipeline 7 is fixedly connected with the fixed nut 8, the outer side of the right end of the movable pipeline 7 is provided with threads, the right end of the movable pipeline 7 is spirally connected with the right end face of the valve body 1 through the threads, and the movable pipeline 7 and the valve body 1 can be stably connected together by rotating the fixed nut 8 through a tool in the installation process; an eyelet 13 is formed in the middle of the rubber plate 6, and the central point of the eyelet 13 formed in the middle of the rubber plate 6 and the central point of the movable pipeline 7 are arranged on the same horizontal plane, so that the circulation inside the stop valve is facilitated; the first sleeve 10 and the second sleeve 12 are both arranged in a cylindrical shape, the number of the micro sealing rings 11 is two, and the inner side and the outer side of the upper end of the second sleeve 12 are both fixedly connected with the micro sealing rings 11, so that the overall sealing effect of the device is effectively improved; be the vertically setting between the up end of dwang 4 and valve body 1, the swivelling joint is in the same place between dwang 4 and the valve body 1, can improve device overall structure's stability effectively at the in-process that uses.

The working principle of the stop valve with the anti-blocking mechanism of the utility model is explained as follows:

the stop valve with the anti-blocking mechanism is characterized in that in the installation and use process, firstly, workers need to select different types of filter screens 15 to be installed at the inner side of a movable pipeline 7 according to actual needs, after the installation is finished, the workers can integrally install the stop valve in the pipeline for use, in the use process, the workers can drive a rotating rod 4 to drive a valve plug 3 to move up and down by rotating a rotating disk 2, so that the integral blocking of the stop valve can be finished, the valve plug 3 simultaneously drives a second sleeve 12 to move up and down in the up and down moving process, water can be effectively prevented from entering the inner side positions of the first sleeve 10 and the second sleeve 12 by the arranged miniature rubber ring 11 in the moving process, the arrangement has good sealing effect in the use process, and meanwhile, the stability in the up and down moving process of the valve plug 3 can be ensured by the arranged first sleeve 10 and the second sleeve 12, have good practical value, simultaneously can rotate fixing nut 8 through the instrument and make the sealed effect of device in the use through sealed rubber ring 14 and the rubber slab 6 that set up when movable sleeve 7 and valve body 1 are stable link together at the in-process staff to the installation of movable pipeline 7, the filter screen 15 in the movable pipeline 7 of being convenient for is changed and is convenient for clear up valve body 1 inside when clearing up in the in-process of using to such setting, can prevent effectively that the condition of jam from taking place for valve body 1, be worth carrying on extensive popularization and use.

The stop valve with the anti-blocking mechanism provided by the embodiment of the utility model is described in detail above, and the principle and the implementation mode of the utility model are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the technical scheme disclosed by the utility model; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims

1. The utility model provides a stop valve with prevent stifled mechanism, includes valve body, valve stop core and movable pipeline, its characterized in that: the valve body left end is equipped with valve stop core, valve stop core upper end central point rotates and is connected with the dwang, dwang top fixedly connected with rolling disc, valve stop core up end fixedly connected with second sleeve pipe, the second sleeve pipe passes through extension spring and miniature sealing washer and is in the same place with first sleeve intraductal lateral wall sliding connection, fixedly connected with rubber slab in the middle of the valve body, fixedly connected with sealing rubber ring in the middle of the rubber slab right-hand member face, the inboard sliding connection of sealing rubber ring has the movable pipeline, the inboard fixedly connected with filter screen of movable pipeline left end.

2. A shut-off valve with an anti-clog mechanism according to claim 1, wherein: the dwang upper end is threaded setting, the position of dwang upper end is in the same place through screw thread and fixed bolster spiral connection, the perpendicular cross-section of fixed bolster is the setting of "U" type, and the position and the valve body up end fixed connection of fixed bolster bottom are in the same place.

3. A shut-off valve with an anti-clog mechanism according to claim 1, wherein: the movable pipeline is arranged in a cylindrical mode, a fixing nut is fixedly connected to the outer side of the right end of the movable pipeline, the outer side of the right end of the movable pipeline is provided with threads, and the right end of the movable pipeline is connected with the right end face of the valve body in a threaded mode through the threads.

4. A shut-off valve with an anti-clog mechanism according to claim 1, wherein: the middle of the rubber plate is provided with an eyelet, and the central point of the eyelet arranged in the middle of the rubber plate and the central point of the movable pipeline are arranged on the same horizontal plane.

5. A shut-off valve with an anti-clog mechanism according to claim 1, wherein: the first sleeve and the second sleeve are both arranged in a cylindrical shape, the number of the micro sealing rings is two, and the inner side and the outer side of the upper end of the second sleeve are fixedly connected with the micro sealing rings.

6. A shut-off valve with an anti-clog mechanism according to claim 1, wherein: be the vertically setting between the up end of dwang and valve body, rotate between dwang and the valve body and link together.