CN215928401U

CN215928401U - Filtration formula double containment formula stop valve

Info

Publication number: CN215928401U
Application number: CN202121550256.1U
Authority: CN
Inventors: 陈丰
Original assignee: Zhejiang Futai Valve Technology Co ltd
Current assignee: Zhejiang Futai Valve Technology Co ltd
Priority date: 2021-07-08
Filing date: 2021-07-08
Publication date: 2022-03-01
Anticipated expiration: 2031-07-08

Abstract

The utility model discloses a filtering type double-sealing stop valve which comprises a valve body and connecting flanges, wherein the connecting flanges are welded at two ends of the valve body, and a blocking device is arranged in the valve body. This filtration formula double containment stop valve, through first filter screen, the second filter screen, the valve rod, mutually support between valve clack and the lining fluorine pad isotructure, can drive the valve clack through the valve rod and remove, make the valve clack adjust the flow of valve body, can filter water through first filter screen and second filter screen simultaneously, through the disc, mutually support between sealed pad and the montant isotructure, can play limiting displacement to the valve rod through disc and montant, make the valve rod keep vertical direction removal throughout, simultaneously can improve the sealing performance of valve rod department through sealed the pad, through the threaded rod, mutually support between seal bearing and the casing isotructure, can drive the threaded rod through the carousel and rotate, the threaded rod drives the valve rod and removes, thereby made things convenient for and adjusted this device.

Description

Filtration formula double containment formula stop valve

Technical Field

The utility model relates to the technical field of stop valves, in particular to a filtering type double-sealing stop valve.

Background

The stop valve is a tool which depends on the pressure of a valve rod to enable the sealing surface of the valve clack to be tightly attached to the sealing surface of the valve seat and prevent medium from flowing, belongs to a forced sealing type valve and is one of the most widely used valves, and is divided into a straight-through type stop valve, a direct-flow type stop valve, an angle type stop valve and a plunger type stop valve according to the channel direction.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a filtering type double-sealing stop valve, which aims to solve the problems of single structure and low use effect of the stop valve in the prior art in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a filtering type double-sealing stop valve comprises a valve body and connecting flanges, wherein the connecting flanges are welded at two ends of the valve body, and a blocking device is arranged inside the valve body;

the blocking device comprises a valve cover, a bolt, a valve rod, a valve clack and a fluorine lining pad;

the valve cover is connected with the valve body through a plurality of bolts in a threaded mode, the valve rod is installed at the through hole of the valve cover, the outer wall of the valve rod is in clearance fit with the inner wall of the through hole of the valve cover, the valve clack is welded below the valve rod, a plurality of fluorine lining pads are tightly attached to the outer wall of the lower portion of the valve clack, and the lower portion of the fluorine lining pads is fixedly connected with the closed surface of the valve body.

Preferably, control flange's inboard is installed first filter screen and second filter screen respectively, and the outer wall of first filter screen and second filter screen all links to each other with the inner wall of valve body is fixed, can filter water through first filter screen and second filter screen like this.

Preferably, a sealing device is arranged on the outer wall above the valve rod;

the sealing device comprises a disc, a baffle, a sealing gasket and a vertical rod;

the inside of disc links to each other with the top outer wall of valve rod is fixed, the below of disc is equipped with a plurality of baffles, from top to bottom the inboard outer wall of baffle all links to each other with the valve gap is fixed, and the outer wall clearance fit of the through-hole department inner wall of baffle and valve rod, a plurality of sealed pads are installed to the inboard of baffle, the outer wall of sealed pad links to each other with the through-hole department inner wall of valve gap is fixed, and the outer wall of the sealed inner wall of pad closely laminates with the valve rod, the top welding of disc has a plurality of montants.

Preferably, the spring is arranged below the disc, the inner wall of the spring is in clearance fit with the outer wall of the valve rod, and the two ends of the spring are fixedly connected with the valve clack and the adjacent baffle respectively, so that the stability of the valve clack during movement can be improved through the elastic performance of the spring.

Preferably, an adjusting device is arranged above the valve rod;

the adjusting device comprises a threaded rod, a rotary table, a sealing bearing and a shell;

the below of threaded rod links to each other with the internal thread of valve rod, the top integrated into one piece of threaded rod is provided with the carousel, the top outer wall of threaded rod rotates through sealed bearing and is connected with the casing, the below of casing links to each other with the valve gap is fixed, and the top inner wall of casing links to each other with the montant welding.

Compared with the prior art, the utility model has the beneficial effects that: the filtering type double-sealing stop valve has the advantages that through the mutual matching of the first filter screen, the second filter screen, the valve cover, the bolt, the valve rod, the valve clack, the fluorine lining pad and other structures, the valve clack can be driven to move through the valve rod, so that the valve clack can adjust the flow of the valve body, and meanwhile, water can be filtered through the first filter screen and the second filter screen;

through the mutual matching among the structures such as the disc, the baffle, the sealing gasket, the vertical rod and the like, the valve rod can be limited through the disc and the vertical rod, so that the valve rod always keeps moving in the vertical direction, and meanwhile, the sealing performance of the valve rod can be improved through the sealing gasket;

through mutually supporting between structures such as threaded rod, carousel, sealed bearing and casing, can drive the threaded rod through the carousel and rotate, the threaded rod drives the valve rod and removes to made things convenient for and adjusted this device.

Drawings

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

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a schematic view of the connection flange, valve body and first screen of FIG. 2;

fig. 4 is a schematic view of the threaded rod, spring and disk of fig. 2.

In the figure: 1. valve body, 2, connecting flange, 3, blocking device, 301, valve cover, 302, bolt, 303, valve rod, 304, valve clack, 305, fluorine-lined gasket, 4, sealing device, 401, disc, 402, baffle, 403, sealing gasket, 404, vertical rod, 5, adjusting device, 501, threaded rod, 502, rotary disc, 503, sealing bearing, 504, shell, 6, first filter screen, 7, second filter screen, 8, spring.

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.

Referring to fig. 1-4, the present invention provides a technical solution: a filter type double-sealing stop valve comprises a valve body 1 and a connecting flange 2, the connecting flange 2 is welded at both ends of the valve body 1, the valve body 1 can be rapidly connected with external equipment through the connecting flange 2, a blocking device 3 is installed inside the valve body 1, the blocking device 3 comprises a valve cover 301, a bolt 302, a valve rod 303, a valve flap 304 and a fluorine lining pad 305, the valve cover 301 is in threaded connection with the valve body 1 through 4 bolts 302, a through hole is processed in the middle of the valve cover 301, the valve rod 303 is installed at the through hole of the valve cover 301, the outer wall of the valve rod 303 is in clearance fit with the inner wall of the through hole of the valve cover 301, the valve rod 303 can move at the through hole of the valve cover 301, the valve flap 304 is welded below the valve rod 303, the outer wall below the valve flap 304 is tightly attached with 2 fluorine lining pads 305, the sealing performance at the valve flap 304 can be improved through the fluorine lining pad 305, and the function of corrosion prevention can be achieved at the same time, and the below of lining fluorine pad 305 links to each other with the airtight face of valve body 1 is fixed, and left and right sides flange 2's inboard is installed first filter screen 6 and second filter screen 7 respectively, and the outer wall of first filter screen 6 and second filter screen 7 all links to each other with the inner wall of valve body 1 is fixed, can filter water through first filter screen 6 and second filter screen 7.

The sealing device 4 is installed on the outer wall above the valve rod 303, the sealing device 4 comprises a disc 401, a baffle 402, a sealing gasket 403 and vertical rods 404, the inside of the disc 401 is fixedly connected with the outer wall above the

valve rod

303, 2 baffles 402 are arranged below the disc 401, through holes are processed inside the baffles 402, the inner side outer walls of the upper baffle 402 and the lower baffle 402 are fixedly connected with the valve cover 301, the inner wall of the through hole of each baffle 402 is in clearance fit with the outer wall of the

valve rod

303, 2 sealing gaskets 403 are installed on the inner side of the baffles 402, the sealing gaskets 403 can be blocked by the baffles 402, the outer wall of each sealing gasket 403 is fixedly connected with the inner wall of the through hole of the valve cover 301, the inner wall of each sealing gasket 403 is tightly attached to the outer wall of the valve rod 303, the sealing performance of the valve rod 303 can be improved by the

sealing gaskets

403, 2 vertical rods 404 are welded above the disc 401, the vertical rods 404 are telescopic, and springs 8 are arranged below the disc 401, the inner wall of the spring 8 is in clearance fit with the outer wall of the valve rod 303, two ends of the spring 8 are fixedly connected with the valve clack 304 and the adjacent baffle 402 respectively, the spring 8 can be elastically deformed when the valve clack 304 moves, and the valve clack 304 can move more stably through the elastic performance of the spring 8.

Adjusting device 5 is installed to the top of valve rod 303, adjusting device 5 includes threaded rod 501, carousel 502, sealing bearing 503 and casing 504, the below of threaded rod 501 links to each other with the internal thread of valve rod 303, can drive valve rod 303 through threaded rod 501 and remove, the top integrated into one piece of threaded rod 501 is provided with carousel 502, the top outer wall of threaded rod 501 rotates through sealing bearing 503 and is connected with casing 504, can improve the leakproofness of threaded rod 501 with casing 504 department through sealing bearing 503, the below and the valve gap 301 of casing 504 are fixed continuous, and the top inner wall and the montant 404 welding of casing 504 link to each other.

In this embodiment, when an operator needs to use the filtering type double-sealing stop valve, firstly, the operator can connect the valve body 1 with an external device through the connecting flange 2, the valve cover 301 can be connected with the valve body 1 through the bolt 302, when the flow of the valve body 1 needs to be adjusted, the rotary disc 502 can be rotated, the rotary disc 502 drives the threaded rod 501 to rotate, the threaded rod 501 can rotate at the housing 504 through the sealing bearing 503, so that the sealing performance at the threaded rod 501 can be improved through the sealing bearing 503, meanwhile, the threaded rod 501 drives the valve rod 303 to move, the valve rod 303 drives the disc 401 and the valve flap 304 to move, the vertical rod 404 can be made to perform telescopic motion through the disc 401, so that the valve rod 303 can drive the valve flap 304 to move in the vertical direction through the cooperation of the vertical rod 404 and the disc 401, and then the flow of the sealing position of the valve body 1 can be adjusted all the time through the valve flap 304, can block sealed pad 403 through baffle 402, like this through sealed pad 403 alright with the leakproofness that improves valve rod 303 department, when rivers pass through valve body 1 department, can filter the impurity in the water through first filter screen 6 and second filter screen 7, and then just improved valve body 1's result of use.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a filtration formula double containment stop valve, includes valve body (1) and flange (2), its characterized in that have all been welded at the both ends of valve body (1): a blocking device (3) is arranged in the valve body (1);

the blocking device (3) comprises a valve cover (301), a bolt (302), a valve rod (303), a valve flap (304) and a fluorine-lined gasket (305);

valve gap (301) link to each other through a plurality of bolts (302) and valve body (1) screw thread, valve rod (303) are installed to the through-hole department of valve gap (301), and the outer wall of valve rod (303) and the through-hole department inner wall clearance fit of valve gap (301), the below welding of valve rod (303) has valve clack (304), the below outer wall of valve clack (304) closely laminates a plurality of lining fluorine pads (305), and the below of lining fluorine pad (305) links to each other with the airtight face of valve body (1) is fixed.

2. The filtering double-seal stop valve according to claim 1, wherein: control first filter screen (6) and second filter screen (7) are installed respectively to the inboard of flange (2), and the outer wall of first filter screen (6) and second filter screen (7) all links to each other with the inner wall of valve body (1) is fixed.

3. The filtering double-seal stop valve according to claim 1, wherein: a sealing device (4) is arranged on the outer wall of the upper part of the valve rod (303);

the sealing device (4) comprises a disc (401), a baffle plate (402), a sealing pad (403) and a vertical rod (404);

the inside of disc (401) links to each other with the top outer wall of valve rod (303) is fixed, the below of disc (401) is equipped with a plurality of baffles (402), and is from top to bottom baffle (402) inboard outer wall all links to each other with valve gap (301) is fixed, and the outer wall clearance fit of through-hole department inner wall and valve rod (303) of baffle (402), a plurality of sealed pads (403) are installed to the inboard of baffle (402), the outer wall of sealed pad (403) links to each other with the through-hole department inner wall of valve gap (301) is fixed, and the inner wall of sealed pad (403) closely laminates with the outer wall of valve rod (303), the top welding of disc (401) has a plurality of montants (404).

4. The filtering double-seal stop valve according to claim 3, wherein: a spring (8) is arranged below the disc (401), the inner wall of the spring (8) is in clearance fit with the outer wall of the valve rod (303), and two ends of the spring (8) are fixedly connected with the valve clack (304) and the adjacent baffle (402) respectively.

5. The filtering double-seal stop valve according to claim 4, wherein: an adjusting device (5) is arranged above the valve rod (303);

the adjusting device (5) comprises a threaded rod (501), a rotary disc (502), a sealing bearing (503) and a shell (504);

the below of threaded rod (501) links to each other with the internal thread of valve rod (303), the top integrated into one piece of threaded rod (501) is provided with carousel (502), the top outer wall of threaded rod (501) rotates through sealed bearing (503) and is connected with casing (504), the below and the valve gap (301) of casing (504) are fixed continuous, and the top inner wall and the montant (404) welding of casing (504) link to each other.