CN219388626U - Valve with self-sealing structure - Google Patents

Abstract

The utility model relates to the technical field of valves, and discloses a valve with a self-sealing structure, which comprises: the valve body, inlet end, outlet end respectively fixedly connected with flange, disk seat, fixed connection is at the inner wall of valve body, and the valve rod, bottom screw thread run through the valve body and extend to the inside of valve body, the case, fixed connection is in the bottom of valve rod, case and disk seat cooperation set up, no. two flanges, no. three flanges, equal fixed mounting is at the surface of valve rod, through bolt threaded connection between No. two flanges and No. three flanges, filtration, set up inside the valve body. Through the filtration that sets up, through the filter screen that sets up, play the effect of filtering impurity, when two flanges of screw-thread installation, the marginal iron ring butt is in one flange and one side that external component is adjacent to play the effect of firm installation filter screen, the convenience is installed and is dismantled the filter screen.

Description

Valve with self-sealing structure

Technical Field

The utility model relates to the technical field of valves, in particular to a valve with a self-sealing structure.

Background

With the development of society, pipeline connection is required in both production and life. In pipe connections, it is necessary to apply to pipe connections, wherein a gate valve is one of the pipe connections that are often used.

According to Chinese patent publication: "a high leakproofness valve structure", patent number is: CN218031731U, though the slider is pushed to slide by the pushing sleeve, then the slider compresses the spring, the spring generates elastic force to push the sealing sleeve to be tightly matched with the valve rod, so that the sealing sleeve can be tightly sleeved on the valve rod, especially after the valve rod and the sealing sleeve are worn and slightly deformed, the elastic force of the spring pushes the sealing sleeve to be tightly sleeved on the valve rod, so that leakage is avoided. The valve rod, the valve cover and the valve seat all have good tightness, and are beneficial to preventing liquid leakage.

The valve of contrast leads to the valve body inside to pile up impurity easily in the in-process of using, causes the inside circulation of valve not smooth, and the filter screen is inconvenient to dismantle after the installation, and the valve of contrast can take place frictional wear after long-time use to produce the clearance between valve rod and the seal cover, can't carry out timely compensation after wearing and tearing moreover, just produce the phenomenon of leaking easily under high pressure environment. For this purpose we propose a valve with self-sealing structure to solve the problems presented in the background art.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a valve with a self-sealing structure.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: a valve having a self-sealing structure, comprising:

the water inlet end and the water outlet end of the valve body are respectively fixedly connected with a first flange;

the valve seat is fixedly connected to the inner wall of the valve body;

the bottom thread penetrates through the valve body and extends to the inside of the valve body;

the valve core is fixedly connected to the bottom end of the valve rod and is matched with the valve seat;

the second flange and the third flange are fixedly arranged on the surface of the valve rod, and the second flange and the third flange are connected through screw threads;

the filter structure is arranged inside the valve body;

the filter structure comprises:

the two filter frames are contacted with the inner wall of the valve body;

the two filter screens are respectively arranged at the inner sides of the two filter frames;

the two extension rings are respectively and fixedly connected to one sides of the two filter frames;

the two edge iron rings are respectively and fixedly connected to the outer walls of the two extension rings.

Preferably, the method further comprises:

the anti-leakage structure is arranged on the inner walls of the valve rod and the valve body;

the anti-leakage structure comprises:

the sealing sleeve is abutted against the inner wall of the valve body;

compression spring, one end fixed connection is in the bottom of seal cover, compression spring's the other end and the inner wall fixed connection of valve body, the inner wall space of valve body and valve rod is arc and upwards delivers, the seal cover is located the arc inner wall bottommost.

Preferably, two the through holes are all seted up to the edge hoop, and the through hole of seting up is symmetrical and mutually supporting with the flange hole on two first flanges and is set up, when two first flanges of screw thread installation, the screw thread installation of flange hole can not be influenced to the through hole of seting up on the edge hoop.

Preferably, an upper sealing ring is arranged on the valve rod and the inner wall of the valve body in a sealing way, and the anti-leakage function is achieved through the arranged upper sealing ring.

Preferably, the top fixedly connected with hand wheel of valve rod, fixedly connected with anti-skidding ripple on the hand wheel makes things convenient for operating personnel to rotate the hand wheel through the hand wheel that sets up, can avoid appearing the phenomenon of skidding through the anti-skidding ripple that sets up.

Preferably, the two edge iron rings are respectively contacted with one sides of the two first flanges, and when the two first flanges are installed in a threaded manner, the edge iron rings are abutted against one sides of the first flanges adjacent to the external element, so that the effect of firmly installing the filter screen is achieved.

(III) beneficial effects

Compared with the prior art, the utility model provides the valve with the self-sealing structure, which has the following beneficial effects:

1. this valve with self sealss structure through the filtration that sets up, plays the effect of filtering impurity through the filter screen that sets up, when two flanges of screw-thread installation, the edge hoop butt is in one flange and one side that external component is adjacent to play the effect of firm installation filter screen, the convenience is installed and is dismantled the filter screen.

2. This valve with self sealss structure, through the antiseep structure of setting, through compression spring elasticity, make the seal cover compress to the seal cover upwards is close to and lasts the extrusion valve rod outer wall, consequently has the automatic compensation function, avoids leading to the leakproofness variation after wearing and tearing, plays the effect of antiseep through the last sealing washer of setting, can improve holistic sealed effect.

Drawings

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

FIG. 1 is a front view of the present utility model;

FIG. 2 is a cross-sectional view of the present utility model;

FIG. 3 is a schematic view of a filter structure according to the present utility model;

fig. 4 is a schematic structural view of the leakage preventing structure of the present utility model.

In the figure: 1. a valve body; 2. a first flange; 3. a second flange; 4. a third flange; 5. a valve stem; 6. a hand wheel; 7. a valve seat; 8. a valve core; 9. an upper sealing ring; 10. a filtering structure; 1001. a filter frame; 1002. an extension ring; 1003. an edge iron ring; 11. an anti-seepage structure; 1101. sealing sleeve; 1102. compressing the spring.

Detailed Description

Example 1

As shown in fig. 1-4, the present utility model provides a valve having a self-sealing structure, comprising: valve body 1, inlet end, outlet end respectively fixedly connected with flange No. 2, disk seat 7, fixed connection is at the inner wall of valve body 1, valve rod 5, the bottom screw thread runs through valve body 1 and extends to the inside of valve body 1, the top fixedly connected with hand wheel 6 of valve rod 5, fixedly connected with anti-skidding ripple on the hand wheel 6, make things convenient for operating personnel to rotate hand wheel 6 through the hand wheel 6 that sets up, phenomenon that skidding can be avoided appearing through the anti-skidding ripple that sets up, case 8, fixed connection is in the bottom of valve rod 5, case 8 and disk seat 7 cooperation set up, valve rod 5 and the inner wall seal of valve body 1 are provided with sealing washer 9, play antiseep effect through the last sealing washer 9 that sets up, no. 3, no. 4 flange, equal fixed mounting is at the surface of valve rod 5, pass through bolt threaded connection between No. 3 flange No. 4, filter structure 10, set up inside valve body 1, filter structure 10 includes: the two filter frames 1001 are in contact with the inner wall of the valve body 1, the two filter screens are respectively arranged on the inner sides of the two filter frames 1001, the two extension rings 1002 are respectively and fixedly connected to one sides of the two filter frames 1001, the two edge iron rings 1003 are respectively and fixedly connected to the outer walls of the two extension rings 1002, through holes are respectively formed in the two edge iron rings 1003, the formed through holes are symmetrical to flange holes on the two first flanges 2 and are mutually matched, the two first flanges 2 are installed through threads, the through holes formed in the edge iron rings 1003 cannot affect the threaded installation of the flange holes, the two edge iron rings 1003 are respectively in contact with one sides of the two first flanges 2, and the edge iron rings 1003 are abutted to one side of the first flanges 2 adjacent to an external element when the two first flanges 2 are installed through threads, so that the effect of installing the filter screens is played.

In this embodiment, through the filtration 10 that sets up, through the filter screen of setting, play the effect of filtering impurity, when two flanges 2 of screw thread installation, the marginal hoop 1003 butt is in flange 2 and the adjacent one side of external component No. one to play the effect of firm installation filter screen, the convenience is installed and is dismantled the filter screen.

Example 2

As shown in fig. 1-4, on the basis of embodiment 1, the present utility model provides a technical solution: preferably, the method further comprises: the antiseep structure 11 sets up the inner wall at valve rod 5 and valve body 1, and antiseep structure 11 includes: seal cover 1101 butt is at the inner wall of valve body 1, and compression spring 1102 one end fixed connection is in the bottom of seal cover 1101, and compression spring 1102's the other end and the inner wall fixed connection of valve body 1, and valve body 1 and valve rod 5's inner wall space are arc and go up the transfer, and seal cover 1101 is located the arc inner wall bottommost.

In this embodiment, through the antiseep structure 11 of setting, through compression spring 1102 elasticity, make seal cover 1101 compress to seal cover 1101 upwards is close to and continuously extrudees valve rod 5 outer wall, consequently has the automatic compensation function, avoids leading to the leakproofness variation owing to seal cover 1101 wearing and tearing back, plays the effect of antiseep through the last sealing washer 9 of setting, can improve holistic sealed effect.

The working principle of the valve with the self-sealing structure is specifically described below.

As shown in fig. 1-4, when in use, the hand wheel 6 is rotated to drive the valve rod 5 to move up and down on the inner wall of the valve body 1, so that the valve rod 5 drives the valve core 8 to open and close the valve seat 7, the anti-leakage function is achieved through the arranged upper sealing ring 9, the integral sealing effect can be improved, the sealing sleeve 1101 is compressed through the elastic force of the compression spring 1102, the sealing sleeve 1101 is upwards close to and continuously extrudes the outer wall of the valve rod 5, and therefore the automatic compensation function is achieved, the sealing performance is prevented from being deteriorated due to abrasion of the sealing sleeve 1101, the impurity filtering function is achieved through the arranged filter screen, the filter screen is firmly installed on one side of the first flange 2 adjacent to an external element while the first flange 2 is installed through threads, and the filter screen is conveniently installed and detached.

Claims (6)

1. A valve having a self-sealing structure, comprising:

the water inlet end and the water outlet end of the valve body (1) are respectively and fixedly connected with a first flange (2);

the valve seat (7) is fixedly connected to the inner wall of the valve body (1);

a valve rod (5) with a bottom thread penetrating the valve body (1) and extending into the valve body (1);

the valve core (8) is fixedly connected to the bottom end of the valve rod (5), and the valve core (8) is matched with the valve seat (7);

the second flange (3) and the third flange (4) are fixedly arranged on the surface of the valve rod (5), and the second flange (3) and the third flange (4) are connected through screw threads;

the filter structure (10) is arranged inside the valve body (1);

the filter structure (10) comprises:

two filter frames (1001) are contacted with the inner wall of the valve body (1);

two filter screens respectively arranged on the inner sides of the two filter frames (1001);

two extension rings (1002) fixedly connected to one sides of the two filter frames (1001), respectively;

the two edge iron rings (1003) are respectively fixedly connected to the outer walls of the two extension rings (1002).

2. The valve with self-sealing structure according to claim 1, further comprising:

the anti-leakage structure (11) is arranged on the inner walls of the valve rod (5) and the valve body (1);

the leakage preventing structure (11) comprises:

a seal sleeve (1101) abutted against the inner wall of the valve body (1);

compression spring (1102), one end fixed connection is in the bottom of seal cover (1101), the other end of compression spring (1102) and the inner wall fixed connection of valve body (1), the inner wall space of valve body (1) and valve rod (5) is arc and goes up the delivery, seal cover (1101) are located arc inner wall bottommost.

3. A valve with self-sealing structure according to claim 1, characterized in that: the two edge iron rings (1003) are provided with through holes, and the provided through holes are symmetrical to and matched with the flange holes on the two first flanges (2).

4. A valve with self-sealing structure according to claim 1, characterized in that: an upper sealing ring (9) is arranged between the valve rod (5) and the inner wall of the valve body (1) in a sealing way.

5. A valve with self-sealing structure according to claim 1, characterized in that: the top of valve rod (5) fixedly connected with hand wheel (6), fixedly connected with anti-skidding ripple on hand wheel (6).

6. A valve with self-sealing structure according to claim 1, characterized in that: the two edge iron rings (1003) are respectively contacted with one sides of the two first flanges (2).