CN216143191U

CN216143191U - Manual bellows stop valve that can edulcoration

Info

Publication number: CN216143191U
Application number: CN202121966503.6U
Authority: CN
Inventors: 龙召森
Original assignee: Wuxi Longsen Vacuum Technology Co ltd
Current assignee: Wuxi Longsen Vacuum Technology Co ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-03-29
Anticipated expiration: 2031-08-20

Abstract

The utility model discloses a manual corrugated pipe stop valve capable of removing impurities, and belongs to the technical field of corrugated pipe stop valves. The manual corrugated pipe stop valve capable of removing impurities comprises an expansion blocking piece, a filtering assembly, a valve body, a valve disc, a valve cover, a corrugated valve rod and a hand wheel. According to the utility model, the filter assembly is used for replacing a filter screen in the traditional corrugated pipe stop valve, so that the filter assembly not only increases the filter area and enhances the filter effect, but also can take out the valve body, the filter structure is convenient to clean and replace, and the practicability of the impurity-removing corrugated pipe stop valve is improved; in addition, the expansion blocking piece is additionally arranged at the left part of the valve body, the medium in the pipeline is blocked at the left side of the valve body by utilizing the inflation and the expansion of the air bag, so that a normal pressure environment is provided for the use of the filtering assembly, the use of an external additional valve body is avoided, the precondition of pipeline distribution and control is reduced, the corrugated pipe stop valve can independently complete the impurity removal work, and the impurity removal capability of the corrugated pipe stop valve is enhanced.

Description

Manual bellows stop valve that can edulcoration

Technical Field

The utility model belongs to the technical field of corrugated pipe stop valves, and particularly relates to a manual corrugated pipe stop valve capable of removing impurities.

Background

Compared with a stop valve, the bellows stop valve has the advantages that the bellows is welded on the valve rod inside, the bellows can prevent process fluid from corroding the valve rod and can keep stable operation performance, valve rod vibration caused by valve plug vibration is avoided, and the bellows stop valve is suitable for pipelines of industries, power stations, vacuum devices, hot water, refrigeration systems, steam systems and the like. Because the bellows stop valve needs to deal with the medium that contains impurity, so partial bellows stop valve has add filtration, through periodic maintenance, has effectively improved the transportation environment of pipeline.

In the prior art, a filter screen is additionally arranged at a communication port of the bellows stop valve to block impurities at an input part of a valve body, and a cleaning plug arranged on the input part of the valve body is periodically opened to clean the impurities; because the filter screen has a simple structure and a unique installation position, when the filter screen is blocked, the filter screen is difficult to clean and replace from the port of the cleaning plug, and the inconvenience is brought to the use of the corrugated pipe stop valve, so that the poor practicability of the existing impurity-removing corrugated pipe stop valve is reflected; in addition, impurities are intercepted at the input part of the valve body, after the corrugated pipe stop valve is closed, high-pressure media are accumulated at the input end, and the high-pressure media are intercepted by an external additional valve body on the premise of opening the cleaning plug, so that the precondition of pipeline distribution control is increased, the corrugated pipe stop valve cannot independently complete impurity removal work, and the defect of impurity removal capability of the corrugated pipe stop valve is reflected.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model provides a manual bellows stop valve that can edulcoration to solve the above-mentioned problem that prior art exists.

The technical scheme is as follows: a manual corrugated pipe stop valve capable of removing impurities comprises an expansion blocking piece, a filtering assembly, a valve body, a valve disc, a valve cover, a corrugated valve rod and a hand wheel; the improved valve is characterized in that a filtering component is arranged inside the valve body, an expansion blocking piece is arranged on the left side of the filtering component, a valve disc is arranged on the upper side of the filtering component, a corrugated valve rod is arranged on the valve disc, the corrugated valve rod penetrates through the valve cover, a hand wheel is arranged at the tail end of the valve cover, and the valve cover is connected with the valve body through a bolt.

Furthermore, the filtering component consists of a top disc, a through rod, a sealing disc, a handle, a supporting keel and a filtering net; the handle is provided with a through rod, the through rod is provided with a plurality of supporting keels, a filter screen is arranged among the supporting keel pieces, the through rod is connected with a sealing disc, the sealing disc is arranged on the lower side of the supporting keels, and the top of the through rod is provided with a top disc; the filter screen among the filter assembly presents with the ellipsoid structure, possesses bigger filter space, and the filter assembly can take out the valve body, can high-efficient change and clearance filter screen, prevents to block up.

Furthermore, the support keel is a flexible metal strip, and two ends of the support keel are respectively sleeved on the through rod; the support keel made of flexible metal materials can deform under the adjustment of the sealing disc, and can be freely switched between the spherical structure and the strip-shaped structure.

Further, the inner side wall and the outer side wall of the sealing disc are respectively provided with threads, and the inside of the sealing disc is connected with a rod and the outside of the sealing disc is connected with a valve body; the ability of the sealing disk to mount the filter assembly to the valve body is critical to the proper use of the filter assembly.

Furthermore, the support keel and the filter screen form an ellipsoidal filter structure, and the structure is tightly connected with a communication port in the valve body; the flexible supporting keel can be tightly attached to the communicating opening of the valve body, so that the function of the filter screen is fully exerted.

Further, an air bag groove is formed in the left portion of the inner side of the valve body, the expansion stopping piece is arranged at the air bag groove and consists of an air bag, a threaded pipe, a barometer and an inflation valve, the air bag is arranged in the air bag groove and is connected with the threaded pipe, the threaded pipe is installed on the valve body, the tail end of the threaded pipe extends to the outside of the valve body, the barometer is installed on the threaded pipe, and the inflation valve is installed at the tail end of the threaded pipe; the expansion blocking piece fills the air bag through external air transmission after the valve disc blocks the communication opening, so that a normal pressure environment is provided for the use of the filtering component.

Has the advantages that: according to the utility model, the filter assembly is used for replacing a filter screen in the traditional corrugated pipe stop valve, so that the filter assembly not only increases the filter area and enhances the filter effect, but also can be taken out of the valve body, and the filter structure is convenient to clean and replace, thereby improving the practicability of the impurity-removing corrugated pipe stop valve; in addition, the expansion blocking piece is additionally arranged at the left part of the valve body, the medium in the pipeline is blocked at the left side of the valve body by utilizing the inflation and the expansion of the air bag, so that a normal pressure environment is provided for the use of the filtering assembly, the use of an external additional valve body is avoided, the precondition of pipeline distribution and control is reduced, the corrugated pipe stop valve can independently complete the impurity removal work, and the impurity removal capability of the corrugated pipe stop valve is further enhanced.

Drawings

Fig. 1 is a half sectional view of the present invention.

Fig. 2 is an enlarged view of the utility model at a in fig. 1.

Fig. 3 is a schematic view of the construction of the filter assembly of the present invention.

The reference signs are: the device comprises an expansion interceptor 1, an air bag 11, a threaded pipe 12, an air pressure gauge 13, an inflation valve 14, a filter assembly 2, a top disc 21, a through rod 22, a sealing disc 23, a handle 24, a support keel 25, a filter screen 26, a valve body 3, an air bag groove 31, a valve disc 4, a valve cover 5, a corrugated valve rod 6 and a hand wheel 7.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the utility model.

As shown in fig. 1, a manual corrugated pipe stop valve capable of removing impurities comprises an expansion block piece 1, a filter assembly 2, a valve body 3, a valve disc 4, a valve cover 5, a corrugated valve rod 6 and a hand wheel 7; the internally mounted of valve body 3 has filtering component 2, and the left side of filtering component 2 is provided with expansion stop 1, and the upside of filtering component 2 is provided with valve disc 4, installs ripple valve rod 6 on the valve disc 4, and ripple valve rod 6 extends to the valve body 3 outside to pass valve gap 5, still installed hand wheel 7 at its end, valve gap 5 passes through the bolt and installs on valve body 3.

As shown in fig. 2, an air bag groove 31 is formed in the left portion of the inner side of the valve body 3, the expansion blocking member 1 is arranged at the air bag groove 31, the expansion blocking member 1 is composed of an air bag 11, a threaded pipe 12, a barometer 13 and an inflation valve 14, the air bag 11 is arranged in the air bag groove 31, the air bag 11 is connected with the threaded pipe 12, the threaded pipe 12 is installed on the valve body 3, the tail end of the threaded pipe 12 extends to the outside of the valve body 3, the barometer 13 is installed on the threaded pipe 12, the inflation valve 14 is installed at the tail end of the threaded pipe 12, and after the valve disc 4 blocks the communication opening, the expansion blocking member 1 inflates the air bag 11 through external air input, so that a normal pressure environment is provided for the use of the filter assembly 2.

As shown in fig. 1 and 3, the filter assembly 2 is composed of a top plate 21, a through rod 22, a sealing plate 23, a handle 24, a support keel 25 and a filter screen 26; the handle 24 is provided with the through rod 22, the through rod 22 is provided with a plurality of supporting keels 25, the supporting keels 25 are flexible metal strips, two ends of each supporting keel 25 are respectively sleeved on the through rod 22, the supporting keels 25 made of flexible metal materials can be freely switched between a spherical structure and a strip-shaped structure, a filter screen 26 is arranged among the plurality of supporting keels 25, the supporting keels 25 and the filter screen 26 form an ellipsoidal filter structure, the structure is tightly connected with a communication port in the valve body 3, the function of the filter screen 26 is fully exerted, the through rod 22 is connected with a sealing disc 23, the inner side wall and the outer side wall of the sealing disc 23 are respectively provided with threads, the through rod 22 in the sealing disc 23 and the valve body 3 are connected with each other, the filtering component 2 can be arranged on the valve body 3 and is a key for normal use of the filtering component 2, the sealing disc 23 is arranged on the lower side of the supporting keels 25, the top of the through rod 22 is provided with a top disc 21, filter screen 26 among the filter assembly 2 presents with the ellipsoid structure, possesses bigger filter space, and filter assembly 2 can take out valve body 3, can high-efficient change and clearance filter screen 26, prevents to block up.

When the utility model is used normally, the air bag 11 of the expansion stopping piece 1 is contracted in the air bag groove 31, and the medium circulation is not influenced; the supporting keel 25 and the filter screen 26 of the filter component 2 are opened in a spherical structure and are closely connected with the communication port of the valve body 3, so that impurities in the medium are filtered in a spherical posture;

when the filter assembly 2 needs to be maintained, the hand wheel 7 is rotated firstly, the corrugated valve rod 6 is made to descend along the thread structure on the valve cover 5 until the valve disc 4 is tightly connected with the communication port, after the medium is blocked from flowing, an external pneumatic device is communicated with the inflation valve 14 of the expansion blocking piece 1, the air bag 11 is inflated by air pressure, the air bag is expanded to fill the left part of the valve body 3, when the barometer 13 reaches a specified value, the inflation is finished, the expansion blocking piece 1 can block the medium on the left side of the expansion blocking piece 1, and a normal-pressure replacement environment is provided for the filter assembly 2;

then the handle 24 of the column filter assembly 2 is held, the sealing disc 23 is rotated to enable the sealing disc 23 to descend along the thread of the through rod 22, and in the process, the structures of the supporting keel 25 and the filter screen 26 are transited from a spherical shape to a strip shape until the structures can be taken out from a port for installing the sealing disc 23; the filter assembly 2 taken out can be cleaned and replaced, after maintenance is completed, the steps are operated in a reverse mode, the filter assembly 2 is installed inside the valve body 3, then gas in the air bag 11 is extracted to enable the air bag to recover the original shape, and finally the valve disc 4 is opened to enable the bellows stop valve to work normally.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the embodiments, and various equivalent changes can be made to the technical solution of the present invention within the technical idea of the present invention, and these equivalent changes are within the protection scope of the present invention.

Claims

1. A manual corrugated pipe stop valve capable of removing impurities is characterized by comprising an expansion blocking piece, a filtering assembly, a valve body, a valve disc, a valve cover, a corrugated valve rod and a hand wheel; the improved valve is characterized in that a filtering component is arranged inside the valve body, an expansion blocking piece is arranged on the left side of the filtering component, a valve disc is arranged on the upper side of the filtering component, a corrugated valve rod is arranged on the valve disc, the corrugated valve rod penetrates through the valve cover, a hand wheel is arranged at the tail end of the valve cover, and the valve cover is connected with the valve body through a bolt.

2. The manual corrugated pipe stop valve capable of removing impurities according to claim 1, wherein the filtering assembly consists of a top disc, a through rod, a sealing disc, a handle, a supporting keel and a filtering net; install the through-rod on the handle, be provided with a plurality of support fossil fragments on the through-rod, a plurality of support fossil fragments install the filter screen between the spare, be connected with sealed dish on the through-rod, sealed dish sets up the downside at the support fossil fragments, the top dish is installed at the top of through-rod.

3. The manual corrugated pipe stop valve capable of removing impurities according to claim 1, characterized in that an air bag groove is formed in the left portion of the inner side of the valve body, the expansion stopping piece is arranged at the air bag groove and consists of an air bag, a threaded pipe, a barometer and an inflation valve, the air bag is arranged in the air bag groove and connected with the threaded pipe, the threaded pipe is installed on the valve body, the tail end of the threaded pipe extends to the outside of the valve body, the barometer is installed on the threaded pipe, and the inflation valve is installed at the tail end of the threaded pipe.

4. The manual bellows stop valve that can edulcorate of claim 2, characterized in that, the support fossil fragments are flexible metal strip, the both ends of support fossil fragments are the suit respectively on the through-rod.

5. An impurity-removing manual corrugated pipe stop valve as claimed in claim 2, wherein the inner side wall and the outer side wall of the sealing disc are respectively threaded, and the connecting rod and the valve body are connected inside the sealing disc.

6. A manual corrugated pipe stop valve capable of removing impurities according to claim 2, wherein the support keel and the filter screen form an ellipsoidal filter structure, and the structure is tightly connected with a communication port in the valve body.