CN114517853A

CN114517853A - Plug valve for preventing leakage in valve body

Info

Publication number: CN114517853A
Application number: CN202210134414.8A
Authority: CN
Inventors: 张晓忠; 夏胜建; 黄晓云; 张晓秋; 戴雄浩; 沈兴伟
Original assignee: Baoyi Group Co ltd
Current assignee: Baoyi Group Co ltd
Priority date: 2022-02-14
Filing date: 2022-02-14
Publication date: 2022-05-20
Anticipated expiration: 2042-02-14
Also published as: CN114517853B

Abstract

The invention discloses a plug valve for preventing leakage in a valve body, which comprises a plug valve body and two groups of connecting pipes, wherein a first flange is integrally formed at two ends of the plug valve body, a second flange is integrally formed at one end, close to each other, of the two groups of connecting pipes, one side, close to each other, of each of the first flange and the second flange is movably connected, a leakage-preventing mechanism matched with the plug valve body is arranged on each connecting pipe, auxiliary frames matched with the leakage-preventing mechanism are vertically and fixedly connected to the front side and the back side of the plug valve body, and a handle is arranged on the plug valve body. The sealing effect of the plug valve body is improved, and liquid in the valve body can be effectively prevented from leaking through the connecting part.

Description

Plug valve for preventing leakage in valve body

Technical Field

The invention relates to the technical field of plug valves, in particular to a plug valve for preventing leakage in a valve body.

Background

The plug valve is a rotary valve in the shape of a closure member or a plug, and is a valve which is opened or closed by rotating 90 degrees to communicate or separate a passage port on the plug with a passage port on the valve body, and is most suitable for use as a valve for cutting and connecting a medium and for flow division, but may be used for throttling depending on the nature of the application and erosion resistance of a sealing surface.

However, the traditional plug valve has poor sealing effect with an external pipeline, cannot prevent liquid in the valve body from leaking, is very easy to cause the liquid in the valve body to overflow through a joint, and can generate irreversible harm to the surrounding environment and bring great potential safety hazard to people around if the irritant and harmful liquid transmitted in the valve body leaks.

Disclosure of Invention

The invention aims to provide a plug valve for preventing leakage in a valve body, and aims to solve the problems that the traditional plug valve and an external pipeline provided in the background technology have poor sealing effect and cannot prevent liquid in the valve body from leaking.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a plug valve of leakage in prevention valve body, includes plug valve body and two sets of connecting pipes, the equal integrated into one piece in both ends of plug valve body has first ring flange, and is two sets of the one end integrated into one piece that the connecting pipe is close to each other has the second ring flange, one side swing joint that first ring flange and second ring flange are close to each other, be provided with on the connecting pipe with plug valve body cooperation use prevent leaking the mechanism, the front of plug valve body and the equal vertical fixedly connected with in the back and the auxiliary frame that prevents that the cooperation of leaking the mechanism is used, be provided with the handle on the plug valve body.

Preferably, the leakage-proof mechanism comprises a sealing sleeve, one side of the sealing sleeve, which is close to each other, is fixedly connected to one side of the first flange plate, which is far away from each other, the inner ring of the sealing sleeve is movably connected with the surface of the second flange plate, one side of the first flange plate and one side of the second flange plate, which are close to each other, are movably connected with a sealing washer, the front and the back of the two groups of connecting pipes are movably connected with clamps, the top and the bottom of one side of the clamps, which is close to each other, are both connected with fixing bolts through screw holes and threads, the back of the fixing bolts are in threaded connection with fixing nuts used in cooperation with the clamps, one side of the clamps, which is close to the sealing sleeve, is fixedly connected with an extrusion plate used in cooperation with the connecting pipes, one side of the extrusion plate, which is close to the plug valve body, is attached to the second flange plate, one side of the clamps, which is far away from the connecting pipes, is fixedly connected with a plurality of turning rods along the up-down direction, one side that the riser was kept away from to the diversion pole has the accessory plate through sliding seat swing joint, it is provided with the auxiliary block to slide in the auxiliary frame, one side fixedly connected with movable plate and the movable plate that the auxiliary block was kept away from each other one side that is close to each other slide and set up on the auxiliary frame, one side that movable plate and accessory plate are close to each other has the auxiliary rod through sliding seat swing joint, there is the top of threaded rod and the bottom swing joint of auxiliary block bottom through thread bush threaded connection in the auxiliary frame inner chamber.

Preferably, the vertical groove is vertically formed in each of two sides of the auxiliary frame, an inserting rod matched with the vertical groove for use is inserted into one side of the auxiliary block, an auxiliary nut is meshed with one end of the inserting rod through external threads, and the right side of the auxiliary nut is movably connected with the left side of the auxiliary frame.

Preferably, the front and the back of connecting pipe all transversely fixedly connected with joint board, all set up in clamp and the stripper plate with the joint groove that the joint board cooperation was used.

Preferably, the top of one side, close to each other, of the second flange plate is fixedly connected with a mounting block, and one side, close to each other, of the mounting block penetrates through the sealing washer and is inserted into the first flange plate.

Preferably, one side fixedly connected with sealing ring that the seal cover kept away from each other, one side and the clamp that the sealing ring kept away from each other are close to one side swing joint of plug valve body, the inner circle of sealing ring and the surperficial swing joint of stripper plate.

Preferably, one side that the diversion pole is close to each other is fixedly connected with many spinal branchs post, the diversion pole is the slope form.

Preferably, the extrusion plate is of a semicircular structure, and the side, close to each other, of the auxiliary frame is of an arc structure.

Compared with the prior art, the invention has the beneficial effects that:

1. in the invention, through arranging the leakage-proof mechanism, two adjacent groups of clamps can be quickly fixed by utilizing the threaded connection of the fixing bolt, the threaded hole and the fixing nut, so that the two groups of clamps can form a complete ring shape and can move on the connecting pipe without obstruction, meanwhile, the auxiliary block can be fixed in the auxiliary frame by utilizing the inserted rod without influencing the normal up-and-down displacement of the auxiliary block, at the moment, the threaded rod can rotate and move up and push the auxiliary block upwards by utilizing the threaded connection of the threaded rod and the threaded sleeve, at the moment, the auxiliary rod can be driven to move under the assistance of the movable plate and the auxiliary plate can be pushed to move outwards at the same time, so that the vertical plate can be simultaneously pulled inwards under the assistance of the turning rod, and the extrusion plate can be further driven to push the second flange plate to quickly move inwards and carry out omnibearing extrusion on the sealing washer until the second flange plate completely enters the sealing sleeve, the extruded sealing washer can be continuously deformed in the sealing sleeve at the moment, all gaps between the first flange plate and the second flange plate are filled, the butt joint between the first flange plate and the second flange plate is completely sealed conveniently, the sealing effect of the plug valve body is improved, and liquid in the valve body can be effectively prevented from leaking through the joint.

2. According to the auxiliary block, the vertical groove and the inserting rod are arranged, the inserting rod penetrates through the vertical groove and the auxiliary block, the auxiliary block can be limited, the auxiliary block is prevented from being separated from the auxiliary frame, meanwhile, the auxiliary nut is meshed with threads on the inserting rod, the inserting rod can be prevented from being separated from the vertical groove and the auxiliary block, the stability is improved, meanwhile, when the auxiliary block moves to a proper height, the auxiliary block can be further limited by means of continuous contact of the auxiliary nut and the auxiliary frame, and the auxiliary block is prevented from moving downwards to influence the sealing effect between the first flange plate and the second flange plate.

3. According to the invention, the clamping plate and the clamping groove are arranged, and the clamping of the clamping plate and the clamping groove can be utilized to limit the position of the clamp, so that the clamp is prevented from rotating on the connecting pipe at will and influencing the installation speed of the clamp.

The anti-leakage mechanism is utilized, so that the extruded sealing washer can be continuously deformed in the sealing sleeve and all gaps between the first flange plate and the second flange plate are filled, the butt joint part between the first flange plate and the second flange plate is conveniently and completely sealed, the sealing effect of the plug valve body is improved, and the liquid in the valve body can be effectively prevented from leaking through the joint part.

Drawings

FIG. 1 is a schematic structural view of a plug valve of the present invention for preventing leakage in the valve body;

FIG. 2 is a partial cross-sectional view of the structure of a plug valve of the present invention for preventing leakage in the valve body;

FIG. 3 is a partial perspective view of the structure of the leak prevention mechanism of the present invention;

FIG. 4 is a structural side view of the plug valve body of the present invention;

FIG. 5 is a perspective view of the structure of the auxiliary plate, the auxiliary block, the moving plate, the auxiliary rod, the insertion rod and the auxiliary frame of the present invention;

fig. 6 is a perspective view of the structure of the connecting pipe, the second flange, the sealing sleeve and the sealing washer of the present invention.

In the figure: 1. a plug valve body; 2. a first flange plate; 3. a connecting pipe; 4. a second flange plate; 5. a leakage prevention mechanism; 501. sealing sleeves; 502. a sealing gasket; 503. clamping a hoop; 504. fixing the bolt; 505. a pressing plate; 506. a vertical plate; 507. a direction-changing lever; 508. an auxiliary plate; 509. an auxiliary block; 510. moving the plate; 511. an auxiliary lever; 512. a threaded rod; 6. a seal ring; 7. an auxiliary frame; 8. a clamping and connecting plate; 9. a vertical slot; 10. inserting a rod; 11. a clamping groove; 12. and (7) installing the block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-6, the present invention provides a technical solution: a plug valve for preventing leakage in a valve body comprises a plug valve body 1 and two groups of connecting pipes 3, wherein a first flange 2 is integrally formed at two ends of the plug valve body 1, a second flange 4 is integrally formed at one end, close to each other, of each group of connecting pipes 3, one side, close to each other, of each group of first flange 2 and one side, close to each other, of each group of second flanges 4 are movably connected, a leakage-preventing mechanism 5 matched with the plug valve body 1 for use is arranged on each connecting pipe 3, auxiliary frames 7 matched with the leakage-preventing mechanisms 5 for use are vertically and fixedly connected to the front side and the back side of the plug valve body 1, the leakage-preventing mechanisms 5 are designed, so that extruded sealing gaskets 502 can be continuously deformed in a sealing sleeve 501 and fully fill all gaps between the first flanges 2 and the second flanges 4, the butt joint between the first flanges 2 and the second flanges 4 is conveniently and completely sealed, and the sealing effect of the plug valve body 1 is improved, can effectively prevent the liquid in the valve body from leaking through the connecting part, and the handle is arranged on the plug valve body 1.

Example 2

Referring to fig. 1-6, the present invention provides a technical solution: a plug valve for preventing leakage in a valve body comprises a plug valve body 1 and two groups of connecting pipes 3, wherein a first flange 2 is integrally formed at two ends of the plug valve body 1, a second flange 4 is integrally formed at one end, close to each other, of each group of connecting pipes 3, one side, close to each other, of each group of first flange 2 and one side, close to each other, of each group of second flanges 4 are movably connected, a leakage-preventing mechanism 5 matched with the plug valve body 1 for use is arranged on each group of connecting pipes 3, auxiliary frames 7 matched with the leakage-preventing mechanisms 5 for use are vertically and fixedly connected to the front side and the back side of the plug valve body 1, each leakage-preventing mechanism 5 comprises a sealing sleeve 501, one side, close to each other, of each sealing sleeve 501 is fixedly connected to one side, far away from each other, of each sealing sleeve 501 is movably connected with the surface of each second flange 4, and one side, close to each other, of each first flange 2 and each second flange 4 is movably connected with a sealing washer 502, the top of the side, close to each other, of the second flange plate 4 is fixedly connected with a mounting block 12, the side, close to each other, of the mounting block 12 penetrates through a sealing washer 502 and is inserted into the first flange plate 2, the position of the connecting pipe 3 can be limited by the insertion of the mounting block 12 and the first flange plate 2, the mounting speed of the leakage-proof mechanism 5 is improved, the front and the back of the two groups of connecting pipes 3 are movably connected with clamps 503, the top and the bottom of the side, close to each other, of each clamp 503 are connected with a fixing bolt 504 through screw holes and threads, the back of each fixing bolt 504 is connected with a fixing nut matched with the corresponding clamp 503, one side, close to the sealing sleeve 501, of each clamp 503 is fixedly connected with an extrusion plate 505 matched with the connecting pipe 3, the extrusion plate 505 is of a semicircular structure and can be matched with the shape of the connecting pipe 3, the auxiliary clamp 503 can move on the connecting pipe 3 without hindrance, and one side, close to each other, of the auxiliary frame 7 is of an arc-shaped structure, one side of the extrusion plate 505 close to the plug valve body 1 is attached to the second flange plate 4, the front surface and the back surface of the connecting pipe 3 are transversely and fixedly connected with clamping plates 8, clamping grooves 11 matched with the clamping plates 8 are formed in the clamp 503 and the extrusion plate 505, the position of the clamp 503 can be limited by utilizing the clamping of the clamping plates 8 and the clamping grooves 11, the clamp 503 is prevented from freely rotating on the connecting pipe 3 to influence the installation speed of the clamp 503, a vertical plate 506 is fixedly connected to one side of the clamp 503 far away from the connecting pipe 3, a plurality of groups of turning rods 507 are movably connected to one side of the vertical plate 506 close to the plug valve body 1 in the up-down direction, an auxiliary plate 508 is movably connected to one side of the turning rods 507 far away from the vertical plate 506 through a movable seat, a plurality of support columns are fixedly connected to one side of the turning rods 507 close to each other, the stability of the plurality of groups of turning rods 507 is improved, and the turning rods 507 are inclined, an auxiliary block 509 is arranged in the auxiliary frame 7 in a sliding manner, vertical grooves 9 are vertically formed in two sides of the auxiliary frame 7, an insertion rod 10 matched with the vertical grooves 9 for use is inserted into one side of the auxiliary block 509, an auxiliary nut is meshed with one end of the insertion rod 10 through external threads, the right side of the auxiliary nut is movably connected with the left side of the auxiliary frame 7, the insertion rod 10 is designed to limit the auxiliary block 509 and prevent the auxiliary block 509 from being separated from the auxiliary frame 7, meanwhile, the auxiliary nut is meshed with the upper threads of the insertion rod 10, when the auxiliary block 509 moves to a proper height, the auxiliary block 509 is further limited by continuous contact of the auxiliary nut and the auxiliary frame 7, the auxiliary block 509 is prevented from moving downwards, a movable plate 510 is fixedly connected to one side of the auxiliary block 509, the side of the movable plate 510 close to each other is arranged on the auxiliary frame 7 in a sliding manner, an auxiliary rod 511 is movably connected to one side of the movable plate 510 and the plate 508 close to each other through a movable base, the bottom of the inner cavity of the auxiliary frame 7 is connected with a threaded rod 512 through a threaded sleeve thread, the top end of the threaded rod 512 is movably connected with the bottom of the auxiliary block 509, and the design of the leakage-proof mechanism 5 can ensure that the extruded sealing washer 502 can be continuously deformed in the sealing sleeve 501 and fully fills all gaps between the first flange plate 2 and the second flange plate 4, so that the butt joint between the first flange plate 2 and the second flange plate 4 can be completely sealed, the sealing effect of the plug valve body 1 is improved, the liquid in the valve body can be effectively prevented from leaking through the joint, the side, far away from each other, of the sealing sleeve 501 is fixedly connected with the sealing ring 6, the side, far away from each other, of the sealing ring 6 is movably connected with the side, close to the plug valve body 1, of the clamp 503, the inner ring of the sealing ring 6 is movably connected with the surface of the extrusion plate 505, and the design of the sealing ring 6 improves the sealing performance between the clamp 503 and the sealing sleeve 501, can further prevent the liquid in the valve body from leaking, and the cock valve body 1 is provided with a handle.

The working principle is as follows: the user butt joints the connecting pipe 3 with the plug valve body 1 in advance, at this time, the second flange plate 4 drives the mounting block 12 to enter the sealing sleeve 501, and the mounting block 12 is inserted into the first flange plate 2, then the user clamps the clamp 503 and the extrusion plate 505 on the clamping plate 8, and uses the fixing bolt 504 to be connected with the thread hole and the thread of the fixing nut, the two adjacent groups of clamp 503 are fixed quickly, so that the two groups of clamp 503 can form a complete ring shape and can move on the connecting pipe 3 without hindrance, then the user clamps the auxiliary block 509 in the auxiliary frame 7, and penetrates the inserting rod 10 through the auxiliary block 509 via the vertical groove 9, fixes the auxiliary block 509 in the auxiliary frame 7, and does not affect the normal up-and-down displacement of the auxiliary block 509, at this time, the user rotates the threaded rod 512, and uses the thread connection of the threaded rod 512 and the thread sleeve to make the threaded rod 512 move upwards and push the auxiliary block 509 upwards, at this time, with the aid of the moving plate 510, the auxiliary rod 511 can be driven to move, and the auxiliary plate 508 can be pushed to move outward at the same time, so that with the aid of the direction-changing rod 507, the vertical plate 506 can be pulled inward at the same time, and further, the extrusion plate 505 can be driven to push the second flange plate 4 to move inward quickly, and the sealing washer 502 can be extruded in all directions until the second flange plate 4 completely enters the sealing sleeve 501, at this time, the extruded sealing washer 502 can be deformed in the sealing sleeve 501 continuously, and all gaps between the first flange plate 2 and the second flange plate 4 are filled, the butt joint between the first flange plate 2 and the second flange plate 4 is completely sealed, the sealing effect of the plug valve body 1 is improved, the liquid in the valve body can be effectively prevented from leaking through the joint, when the auxiliary block 509 moves to an appropriate height, the auxiliary nut is utilized to continuously contact with the auxiliary frame 7, the auxiliary block 509 is further limited, and the auxiliary block 509 is prevented from moving downwards to influence the sealing effect between the first flange plate 2 and the second flange plate 4.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a plug valve of prevention internal leakage of valve, includes plug valve body (1) and two sets of connecting pipe (3), its characterized in that: the equal integrated into one piece in both ends of plug valve body (1) has first ring flange (2), and is two sets of the one end integrated into one piece that connecting pipe (3) are close to each other has second ring flange (4), one side swing joint that first ring flange (2) and second ring flange (4) are close to each other, be provided with on connecting pipe (3) with plug valve body (1) cooperation use prevent leaking mechanism (5), the front of plug valve body (1) and the equal vertical fixedly connected with in the back and prevent auxiliary frame (7) that leak mechanism (5) cooperation was used, be provided with the handle on plug valve body (1).

2. The plug valve of claim 1, wherein the plug valve is configured to prevent leakage from the body of the valve, the plug valve comprising: the leakage-proof mechanism (5) comprises a sealing sleeve (501), one side, close to each other, of the sealing sleeve (501) is fixedly connected to one side, away from each other, of a first flange plate (2), the inner ring of the sealing sleeve (501) is movably connected with the surface of a second flange plate (4), one side, close to each other, of the first flange plate (2) and the second flange plate (4) is movably connected with a sealing washer (502), the front and the back of the two groups of connecting pipes (3) are movably connected with a clamp (503), the top and the bottom, close to each other, of the clamp (503) are both connected with a fixing bolt (504) through screw hole threads, the back of the fixing bolt (504) is connected with a fixing nut matched with the clamp (503) in use, one side, close to the sealing sleeve (501), of the clamp (503) is fixedly connected with an extrusion plate (505) matched with the connecting pipes (3) in use, one side laminating that stripper plate (505) is close to plug valve body (1) is on second ring flange (4), one side fixedly connected with riser (506) of connecting pipe (3) are kept away from in clamp (503), one side that riser (506) are close to plug valve body (1) has multiunit diversion pole (507) along upper and lower direction swing joint, one side that riser (506) were kept away from in diversion pole (507) has auxiliary plate (508) through activity seat swing joint, it is provided with auxiliary block (509) to slide in auxiliary frame (7), one side fixedly connected with movable plate (510) and movable plate (510) that auxiliary block (509) kept away from each other slide the setting on auxiliary frame (7) that one side fixedly connected with movable plate (510) and movable plate (510) are close to each other, there is auxiliary rod (511) through activity seat swing joint in one side that movable plate (510) and auxiliary plate (508) are close to each other, there is the top of threaded rod (512) and threaded rod (512) bottom in auxiliary frame (7) inner chamber through thread bush threaded connection Is movably connected with the bottom of the auxiliary block (509).

3. The plug valve of claim 2, wherein the plug valve is configured to prevent leakage from the body of the valve, the plug valve comprising: the utility model discloses a vertical groove (9) have all vertically been seted up to the both sides of auxiliary frame (7), one side of auxiliary block (509) is inserted and is equipped with inserted bar (10) of using with vertical groove (9) cooperation, the one end of inserted bar (10) has auxiliary nut through the external screw thread meshing, and the right side of auxiliary nut and the left side swing joint of auxiliary frame (7).

4. The plug valve of claim 2, wherein the plug valve is configured to prevent leakage from the body of the valve, the plug valve comprising: the front and the back of the connecting pipe (3) are respectively and fixedly connected with a clamping plate (8), and clamping grooves (11) matched with the clamping plates (8) for use are formed in the clamping hoop (503) and the extrusion plate (505).

5. The plug valve of claim 1, wherein the plug valve is configured to prevent leakage from the body of the valve, the plug valve comprising: the top of one side, close to each other, of the second flange plate (4) is fixedly connected with an installation block (12), and one side, close to each other, of the installation block (12) penetrates through the sealing washer (502) and is inserted into the first flange plate (2).

6. The plug valve of claim 2, wherein the plug valve is configured to prevent leakage from the body of the valve, the plug valve comprising: one side fixedly connected with sealing ring (6) that seal cover (501) kept away from each other, one side that sealing ring (6) kept away from each other and clamp (503) are close to one side swing joint of plug valve body (1), the inner circle of sealing ring (6) and the surperficial swing joint of stripper plate (505).

7. The plug valve of claim 2, wherein the plug valve is configured to prevent leakage from the body of the valve, the plug valve comprising: one side that diversion pole (507) are close to each other is fixedly connected with many spinal branchs post, diversion pole (507) are the slope form.

8. The plug valve of claim 2, wherein the plug valve is configured to prevent leakage from the body of the valve, the plug valve comprising: the extrusion plate (505) is in a semicircular structure, and the sides, close to each other, of the auxiliary frames (7) are in an arc structure.