CN214534672U - Airtight valve with non return performance - Google Patents

Abstract

The utility model discloses an inclosed valve with non return performance, include valve body, blade and be used for control the rotatory drive assembly who opens and close of blade, the blade sets up in the valve body inner chamber, the blade can be relative to valve body horizontal migration in the valve body inner chamber, the periphery of blade is provided with the screw thread, be provided with the internal thread ring that matches with the screw thread in the valve body inner chamber, the blade passes through threaded connection with the valve body inner chamber, drive assembly drives the blade and rotates along the internal thread ring, works as the blade pastes and applies on the valve body or when the blade rotates along the internal thread ring with the valve body and screws, the valve body is in the closed condition. The utility model discloses have higher seal performance when closing, when opening, only allow one-way the passing through, had switch function and non return function concurrently.

Description

Airtight valve with non return performance

Technical Field

The utility model relates to the technical field of valves, concretely relates to seal valve with non return performance.

Background

In an exhaust system, the requirement on the tightness of a valve is higher and higher, and a fully-closed valve is used in some places to ensure the stability of the system. The conventional circular valve is opened by a single blade, the adopted sealing mode is that the blade is lapped on a barrier strip for sealing, no good sealing device exists at the lapping position, a gap exists, and the sealing performance is poor; the blades are mostly in a plane type, when the blades are lapped with the blocking strips, the blocking strips and the blades cannot be tightly lapped on a uniform plane due to micro deformation caused by external force, so that gaps exist, and the sealing property is poor; moreover, the existing valve only has a single function, and can not be switched on or switched off at the same time.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide an seal valve with non return performance, improve the seal of valve, and only allow one-way passing through.

In order to solve the technical problem, the utility model provides an inclosed valve with non return performance, include valve body, blade and be used for control the rotatory drive assembly who opens and close of blade, the blade sets up in the valve body inner chamber, the blade can be in the valve body inner chamber for valve body horizontal migration, the periphery of blade is provided with the screw thread, be provided with the interior silk ring that matches with the screw thread in the valve body inner chamber, the blade passes through threaded connection with the valve body inner chamber, drive assembly drives the blade and rotates along interior silk ring, works as the blade pastes and applies on the valve body or when the blade rotates along interior silk ring with the valve body and screws, the valve body is in the closed condition.

The utility model discloses a preferred embodiment, further include drive assembly includes universal driving shaft, turbine and turbine pole, universal driving shaft and blade fixed connection, the universal driving shaft sets up the central point of blade and puts and outwards outstanding in the blade, the turbine cover is established on the universal driving shaft, the turbine drives the universal driving shaft and rotates, the turbine pole sets up the one side at the turbine, the one end and the turbine meshing of turbine pole are connected, the other end of turbine pole is followed the valve body is worn out.

The utility model discloses a preferred embodiment, further include be provided with long waist hole on the valve body, the turbine pole follows pass in the long waist hole, the turbine pole can follow long waist hole horizontal migration.

In a preferred embodiment of the present invention, it further includes that the end of the turbine rod is provided with a handwheel for driving the turbine rod to rotate.

In a preferred embodiment of the present invention, the turbine and the linkage shaft are disposed in a protective casing, and the protective casing includes an upper turbine casing and a lower turbine casing.

The utility model discloses a preferred embodiment, further include the threaded connection position of blade inboard and valve body inner chamber is provided with the compression seal strip.

In a preferred embodiment of the present invention, the blade further comprises a stainless steel core and a fluorine rubber covering the stainless steel core.

In a preferred embodiment of the present invention, the valve body is made of stainless steel and has a cylindrical shape.

In a preferred embodiment of the present invention, it further includes that flanges for connecting with the pipeline are disposed on both sides of the valve body.

In a preferred embodiment of the present invention, further comprising a cavity of the valve body coated with teflon.

The utility model has the advantages that:

the utility model adopts the sealing mode of threaded connection of the blade and the valve body, and drives the blade to rotate along the inner threaded ring through the driving component, thereby achieving the action of opening and closing the valve;

moreover, the blades in the utility model can move horizontally in the inner cavity of the valve body relative to the valve body, when wind blows into the valve body from one side, the blades are close to or far away from the inner wire ring under the blowing action of the wind, the valve is in a closed state when the blades are close to the inner wire ring, and the valve is in an open state when the blades are far away from the inner wire ring, so that the wind can only pass through the valve in one way;

in conclusion, the valve has high sealing performance when being closed, only allows one-way passage when being opened, and has the switch function and the non-return function.

Drawings

Fig. 1 is a schematic view of the overall structure of the airtight valve with non-return performance according to the present invention;

fig. 2 is a perspective structure diagram of the valve inner cavity of the present invention;

fig. 3 is a schematic structural diagram of the driving assembly of the present invention;

fig. 4 is an exploded view of the sealing valve with non-return performance of the present invention.

The reference numbers in the figures illustrate: 1. a valve body; 2. a blade; 3. a drive assembly; 31. a linkage shaft; 32. a turbine; 33. A turbine rod; 4. a thread; 5. an inner wire ring; 6. an upper turbine shell; 7. a lower turbine shell; 8. a hand wheel; 9. and (4) a flange.

Detailed Description

The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

Referring to fig. 1-2, the utility model discloses an embodiment of leakproofness valve with non return performance, include valve body 1, blade 2 and be used for control 2 rotatory drive assembly 3 of opening and close of blade, blade 2 sets up in the valve body inner chamber, the periphery of blade 2 is provided with screw thread 4, be provided with the interior silk ring 5 that matches with screw thread 4 in the valve body inner chamber, blade 2 passes through screw thread 4 with the valve body inner chamber and is connected, drive assembly 3 drives blade 2 and rotates along interior silk ring 5 to reach the action of opening and close the valve, compare in prior art's butt formula switch, through the connected mode who changes blade 2 and the structure of valve body 1 and blade 2 and valve body 1, improve the leakproofness of blade 2 and the junction of valve body 1.

In this embodiment, the blade 2 can move horizontally in the inner cavity of the valve body relative to the valve body 1, and there are two moving modes of the blade 2 in the inner cavity of the valve body, the first moving mode is that the blade 2 rotates along the inner wire ring 5 under the driving of the driving component 3, at this time, the movement of the blade 2 is the movement connected by the thread 4, and at this time, the movement is the opening and closing of the control valve; the second moving mode is that the blade 2 is in an opening state, when wind blows into the valve body 1 from one side, the blade 2 is close to or away from the inner wire ring 5 under the blowing action of the wind, the valve is in a closing state when the blade 2 is close to the inner wire ring 5, the valve is in an opening state when the blade 2 is away from the inner wire ring 5, and the movement at the moment is a non-return function of the valve in the opening state.

Referring to fig. 3-4, the driving assembly 3 includes a linkage shaft 31, a turbine 32 and a turbine rod 33, the linkage shaft 31 is fixedly connected to the blade 2, the linkage shaft 31 is disposed at a center position of the blade 2 and protrudes outward from the blade 2, the turbine 32 is sleeved on the linkage shaft 31, the turbine 32 drives the linkage shaft 31 to rotate, the turbine rod 33 is disposed at one side of the turbine 32, one end of the turbine rod 33 is engaged with the turbine 32, the other end of the turbine rod 33 protrudes out of the valve body 1, the turbine rod 33 rotates, the turbine 32 drives the blade 2 to rotate by using the linkage shaft 31 as an axis, and in a rotating process of the blade 2, the peripheral threads 4 are screwed tightly or unscrewed on the inner wire ring 5, so as to control closing and opening of the valve.

Specifically, when blade 2 carries out threaded connection along inner wire ring 5, blade 2 will be at valve body inner chamber horizontal migration, because blade 2 is driven by turbine pole 33 and is connected, when blade 2 removed, turbine pole 33 also need remove together, in this embodiment, be provided with long waist hole on the valve body 1, turbine pole 33 follows pass in the long waist hole, long waist hole is seted up along blade 2's direction of movement, when blade 2 removes, turbine pole 33 can follow long waist hole horizontal migration.

In this embodiment, turbine 32 and universal driving shaft 31 set up in the protective housing, the protective housing includes turbine shell 6 and lower turbine shell 7, fixes turbine 32 and universal driving shaft 31's relative position through setting up the protective housing, prevents that turbine 32 from droing from universal driving shaft 31, turbine shell 7 is fixed on blade 2 down, go up turbine shell 6 components of a whole that can function independently detachable lock under on turbine shell 7, conveniently dismantle the protective housing, change inside turbine 32.

In order to achieve a better connection effect at the threaded connection position of the blade 2 and the valve body 1, a compression sealing strip is arranged at the threaded connection position of the inner side of the blade 2 and the inner cavity of the valve body, and the tightness of the valve during closing is further improved through the compression sealing strip.

In order to rotate the turbine rod 33 conveniently, a hand wheel 8 for driving the turbine rod 33 to rotate is arranged at the end of the turbine rod 33, and the rotation radius of the turbine rod 33 is enlarged through the hand wheel 8, so that an operator can rotate the turbine rod 33 more conveniently.

In this embodiment, the blade 2 is composed of a stainless steel core and fluororubber coating the stainless steel core; the inner cavity of the valve body 1 is coated with Teflon, so that the corrosion resistance of the blade 2 and the valve body 1 is improved.

In order to facilitate the connection of the valve of this embodiment with other pipelines, flanges 9 for connecting with pipelines are disposed on two sides of the valve body 1.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.

Claims (10)

1. The utility model provides an inclosed valve with non return performance, its characterized in that includes valve body, blade and is used for control the rotatory drive assembly who opens and close of blade, the blade sets up in the valve body inner chamber, the blade can be relative to valve body horizontal migration in the valve body inner chamber, the periphery of blade is provided with the screw thread, be provided with the internal thread ring that matches with the screw thread in the valve body inner chamber, the blade passes through threaded connection with the valve body inner chamber, drive assembly drives the blade and rotates along the internal thread ring, works as the blade pastes and applies on the valve body or when blade and valve body rotate along the internal thread ring and screw, the valve body is in the closed condition.

2. The hermetic valve with non-return performance according to claim 1, wherein the driving assembly comprises a linkage shaft, a turbine and a turbine rod, the linkage shaft is fixedly connected with the blade, the linkage shaft is arranged at the center of the blade and protrudes outwards from the blade, the turbine is sleeved on the linkage shaft and drives the linkage shaft to rotate, the turbine rod is arranged at one side of the turbine, one end of the turbine rod is engaged with the turbine, and the other end of the turbine rod penetrates out of the valve body.

3. The hermetic valve with check performance according to claim 2, wherein the valve body is provided with a long kidney hole through which the turbine rod passes, and the turbine rod is horizontally movable along the long kidney hole.

4. The hermetic valve with check performance according to claim 2, wherein the end of the worm wheel rod is provided with a hand wheel for driving the worm wheel rod to rotate.

5. The hermetic valve with non-return property according to claim 2, wherein the turbine and the linkage shaft are disposed in a protective housing, the protective housing comprising an upper turbine housing and a lower turbine housing.

6. The hermetic valve with check performance as claimed in claim 1, wherein a compression sealing strip is provided at a threaded connection position of the inner side of the blade and the inner cavity of the valve body.

7. The hermetic valve with non-return property according to claim 1, wherein the blade is composed of a stainless steel core and a fluororubber covering the stainless steel core.

8. The hermetic valve with check performance according to claim 1, wherein the valve body has a cylindrical shape and is made of a stainless steel material.

9. The hermetic valve with check performance according to claim 1, wherein flanges for connecting with a pipeline are provided at both sides of the valve body.

10. The leak-tight valve with check properties as recited in claim 1, wherein the interior cavity of the valve body is coated with teflon.

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