CN214146633U

CN214146633U - Vacuum butterfly valve

Info

Publication number: CN214146633U
Application number: CN202120116709.3U
Authority: CN
Inventors: 朱吉胜; 周彬; 杨智勇
Original assignee: Alken Valve Co ltd
Current assignee: Alken Valve Co ltd
Priority date: 2021-01-15
Filing date: 2021-01-15
Publication date: 2021-09-07
Anticipated expiration: 2031-01-15

Abstract

The utility model provides a vacuum butterfly valve, include: the valve body comprises a valve plate and a valve rod, the valve plate is connected with the valve rod, the valve rod can drive the valve plate to turn over, the valve rod comprises a lower end rod, and the outer wall of the lower end rod is provided with a ring groove; the valve seat, the valve seat lower extreme is provided with the end pole groove, the lower extreme pole stretches into in the end pole groove, end pole groove lateral wall is provided with the bulge loop, the annular cooperatees with the bulge loop. The lower end pole stretches into in the end pole groove, end pole groove lateral wall is provided with the bulge loop, the annular cooperatees with the bulge loop, and the annular cooperatees with the bulge loop and can improve the lower extreme pole of valve rod on the one hand and be in rotatory smoothness degree in the end pole groove, on the other hand, the annular cooperatees with the bulge loop and can prevent to use for a long time and lead to the not hard up of valve rod, avoids influencing valve seal nature because the valve rod is not hard up.

Description

Vacuum butterfly valve

The technical field is as follows:

the utility model relates to the technical field of valves, especially, relate to a vacuum butterfly valve.

Background art:

a butterfly valve, also called a flap valve, is a regulating valve with simple structure, and can be used for the on-off control of low-pressure pipeline media, namely a valve which is opened and closed by rotating around a valve shaft, wherein a closing member (a valve clack or a butterfly plate) is a disk. The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The pipe mainly plays a role in cutting off and throttling. The butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in the valve body, so that the opening and closing or adjusting purpose is achieved.

The valve plate is arranged in the valve seat, the valve rod is arranged in the valve seat, and the valve plate is arranged in the valve seat.

Therefore, there is a need in the art for a vacuum butterfly valve that solves at least one of the above-mentioned problems.

In view of this, the present invention is proposed.

The utility model has the following contents:

an object of the utility model is to provide a vacuum butterfly valve prevents that the valve rod is not hard up to influence valve seal nature.

Specifically, the utility model provides a vacuum butterfly valve, include:

the valve body comprises a valve plate and a valve rod, the valve plate is connected with the valve rod, the valve rod can drive the valve plate to turn over, the valve rod comprises a lower end rod, and the outer wall of the lower end rod is provided with a ring groove;

the valve seat, the valve seat lower extreme is provided with the end pole groove, the lower extreme pole stretches into in the end pole groove, end pole groove lateral wall is provided with the bulge loop, the annular cooperatees with the bulge loop.

Adopt above-mentioned scheme, the lower extreme pole stretches into in the end pole groove, end pole groove lateral wall is provided with the bulge loop, the annular cooperatees with the bulge loop, and the annular cooperatees with the bulge loop and can improve the lower extreme pole of valve rod on the one hand and be in rotatory smoothness degree in the end pole groove, on the other hand, the annular cooperatees with the bulge loop and can prevent to use for a long time and lead to the not hard up of valve rod, avoids influencing valve seal because the valve rod is not hard up.

Further, the lower end rod is arranged at the lower end of the valve rod.

Furthermore, a lower connecting plate is arranged on the outer side of the end rod groove, and a bottom plate movably connected with the lower connecting plate is arranged at the bottom of the end rod groove.

By adopting the scheme, the lower connecting plate is movably connected with the bottom plate, so that the maintenance in the end rod groove can be realized by dismantling the bottom plate, and the maintenance convenience is improved.

Further, the valve body still includes the connecting rod, the valve rod is provided with first connecting hole, the valve plate is provided with the spread groove, the connecting rod passes first connecting hole, the connecting rod tip stretches into the spread groove.

Adopt above-mentioned scheme, the connecting rod is used for connecting valve rod and valve plate set up first connecting hole at the valve rod, and the valve plate sets up the spread groove, and the connecting rod of being convenient for is connected, when improving valve rod and valve plate joint strength, the dismouting of the valve rod and the valve plate of being convenient for.

Further, the valve plate still is provided with the bump, the relative notch setting of spread groove of bump is in the valve plate opposite side.

By adopting the scheme, when the valve is closed, the valve plate isolates fluid, and the fluid is in contact with the salient points, so that the pressure borne by the outer plate is reduced, and the service life of the valve is prolonged.

Preferably, the protrusions are disposed on extension lines extending inward of the coupling grooves.

By adopting the scheme, the protruding points can prolong the extensible length of the connecting grooves, and when the connecting rods enter the connecting grooves, the connectivity of the inner plate and the outer plate is improved.

Further, the valve plate is provided with a flange which is arranged around the periphery of the valve plate.

By adopting the scheme, the sealing performance of the valve is generally higher than the edge relation of the valve plate, and the sealing performance of the valve is improved by arranging the flange at the periphery of the valve plate.

Further, the valve seat comprises a valve sleeve and a connecting sleeve, the valve sleeve is connected with the connecting sleeve, the valve plate is arranged inside the valve sleeve, the valve rod penetrates through the connecting sleeve, a sealing ring is arranged on the inner wall of the valve sleeve, and the sealing ring can be matched with the edge of the valve plate.

By adopting the scheme, the sealing ring is matched with the edge of the valve plate, so that the valve is prevented from being leaked, and the sealing performance of the valve is improved.

Preferably, the valve plate still is provided with the sealing washer, the flange outside is provided with the draw-in groove, the sealing washer inlay in the draw-in groove, the sealing washer can cooperate with the sealing ring.

By adopting the scheme, when the valve is closed, the sealing ring can be matched with the sealing ring, so that the valve is prevented from being leaked, and the tightness of the valve is improved.

Furthermore, connecting rings are arranged on two sides of the valve sleeve and used for being connected with a pipeline to connect the vacuum butterfly valve into the pipeline, and second connecting holes are formed in the connecting rings.

By adopting the scheme, the vacuum butterfly valve is connected into the pipeline through the connecting ring, and the connecting ring is provided with the second connecting hole, so that the vacuum butterfly valve is convenient to disassemble and assemble.

Preferably, the vacuum butterfly valve further comprises a driving device, the driving device is used for driving the valve rod to rotate, the driving device comprises a device shell and a motor, the motor is arranged inside the device shell, the motor is connected with the valve rod, and the motor can drive the valve rod to rotate.

By adopting the scheme, the motor is adopted to drive the valve rod to rotate, no manpower is needed, and the operation difficulty is reduced.

Preferably, an upper connecting plate is arranged at the upper end of the connecting sleeve, and the connecting sleeve is connected with the device shell through the upper connecting plate.

By adopting the scheme, the connection strength is improved.

To sum up, the utility model discloses following beneficial effect has:

1. the utility model provides a pair of vacuum butterfly valve, the lower end pole stretches into in the end pole groove, end pole groove lateral wall is provided with the bulge loop, the annular is cooperateed with the bulge loop, and the annular is cooperateed with the bulge loop and can improve the lower end pole of valve rod on the one hand and rotate the smoothness degree in the end pole groove, and on the other hand, the annular is cooperateed with the bulge loop and can prevent to use for a long time and lead to the not hard up of valve rod, avoids influencing the valve leakproofness because the valve rod is not hard up;

2. the utility model provides a vacuum butterfly valve, lower connecting plate and bottom plate swing joint can overhaul in the terminal rod groove through demolising the bottom plate, improve and overhaul the convenience;

3. the utility model provides a pair of vacuum butterfly valve, the connecting rod is used for connecting the valve rod and the valve plate, sets up the first connecting hole at the valve rod, and the valve plate sets up the spread groove, and the connecting rod of being convenient for is connected, when improving valve rod and valve plate joint strength, is convenient for the dismouting of valve rod and valve plate;

4. the utility model provides a pair of vacuum butterfly valve, when the valve is closed, the sealing washer can cooperate with the sealing ring, prevents that the valve from revealing, improves the valve seal.

Description of the drawings:

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a side view of one embodiment of a vacuum butterfly valve of the present invention;

FIG. 2 is a cross-sectional view of the lower half of the vacuum butterfly valve of the present invention;

FIG. 3 is a schematic view of the lower half of the other side of FIG. 1;

FIG. 4 is an enlarged view of a portion of FIG. 2 at A;

fig. 5 is a partially enlarged view of fig. 2 at B.

Description of reference numerals:

through the above reference sign explanation, combine the embodiment of the utility model, can more clearly understand and explain the technical scheme of the utility model.

1. A valve body; 11. a valve plate; 111. connecting grooves; 112. salient points; 113. a flange; 114. a seal ring; 115. a card slot; 12. a valve stem; 121. a lower end bar; 1211. a ring groove; 122. a first connection hole; 13. a connecting rod; 2. a valve seat; 21. an end bar slot; 211. a convex ring; 212. a lower connecting plate; 213. a base plate; 22. a valve housing; 221. a seal ring; 222. a connecting ring; 2221. a second connection hole; 23. connecting sleeves; 231. an upper connecting plate; 3. a drive device;

the specific implementation mode is as follows:

reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

The present invention will be described in detail below by way of examples.

As shown in fig. 1, 2 and 5, the utility model provides a vacuum butterfly valve, including:

the valve body 1 comprises a valve plate 11 and a valve rod 12, the valve plate 11 is connected with the valve rod 12, the valve rod 12 can drive the valve plate 11 to turn over, the valve rod 12 comprises a lower end rod 121, and an annular groove 1211 is formed in the outer wall of the lower end rod 121;

the valve seat 2, the valve seat 2 lower extreme is provided with end rod groove 21, lower extreme pole 121 stretches into in the end rod groove 21, end rod groove 21 lateral wall is provided with bulge loop 211, annular 1211 cooperatees with bulge loop 211.

Adopt above-mentioned scheme, lower extreme pole 121 stretches into in the end pole groove 21, end pole groove 21 lateral wall is provided with bulge loop 211, annular 1211 cooperatees with bulge loop 211, and annular 1211 cooperatees with bulge loop 211 and can improve the lower extreme pole 121 of valve rod 12 on the one hand and be in rotatory fluency in the end pole groove 21, on the other hand, annular 1211 cooperatees with bulge loop 211 and can prevent to use for a long time and lead to the not hard up of valve rod 12, avoids influencing valve leakproofness because valve rod 12 is not hard up.

In a specific implementation, the lower end rod 121 is disposed at the lower end of the valve stem 12.

As shown in fig. 2 and 5, in a preferred embodiment of the present invention, a lower connecting plate 212 is disposed outside the end rod groove 21, and a bottom plate 213 movably connected to the lower connecting plate 212 is disposed at the bottom of the end rod groove 21.

In a specific implementation, the bottom plate 213 and the lower connecting plate 212 may be connected by a screw.

By adopting the scheme, the lower connecting plate 212 is movably connected with the bottom plate 213, so that the maintenance in the end rod groove 21 can be carried out by detaching the bottom plate 213, and the maintenance convenience is improved.

As shown in fig. 2 and 4, in a preferred embodiment of the present invention, the valve body 1 further includes a connecting rod 13, the valve rod 12 is provided with a first connecting hole 122, the valve plate 11 is provided with a connecting groove 111, the connecting rod 13 passes through the first connecting hole 122, and an end of the connecting rod 13 extends into the connecting groove 111.

Adopt above-mentioned scheme, connecting rod 13 is used for connecting valve rod 12 and valve plate 11 set up first connecting hole 122 at valve rod 12, and valve plate 11 sets up connecting groove 111, and connecting rod 13 of being convenient for connects, when improving

valve rod

12 and 11 joint strength of valve plate, the dismouting of valve rod 12 and valve plate 11 of being convenient for.

In a specific implementation, the valve plate 11 and the valve rod 12 may be connected by a screw connection, a snap connection, or by the connecting rod 13.

In a specific implementation, a thread may be provided on an outer wall of the connecting rod 13 for fixing the valve plate 11 and the valve rod 12.

As shown in fig. 2 and 3, in a specific implementation process, the valve plate 11 is further provided with a protruding point 112, and the protruding point 112 is arranged on the other side of the valve plate 11 opposite to the notch of the connecting groove 111.

In a specific implementation process, the salient points 112 and the notches of the connecting grooves 111 are respectively arranged on two surfaces of the valve plate 11.

By adopting the scheme, when the valve is closed, the valve plate 11 isolates fluid, and the fluid is in contact with the salient points 112, so that the pressure borne by the outer plate is reduced, and the service life of the valve is prolonged.

In a preferred embodiment of the present invention, the protruding points 112 are disposed on an extension line extending inward from the connecting groove 111.

With the above-mentioned solution, the protruding points 112 can extend the extendable length of the connecting slots 111, and when the connecting rod 13 enters the connecting slots 111, the connectivity between the inner plate and the outer plate is improved.

As shown in fig. 2 and 3, in a preferred embodiment of the present invention, the valve plate 11 is provided with a flange 113, and the flange 113 is disposed around the periphery of the valve plate 11.

With the above arrangement, the sealing performance of the valve is generally greater than that of the edge of the valve plate 11, and the flange 113 is provided on the outer periphery of the valve plate 11 to improve the sealing performance of the valve.

In a preferred embodiment of the present invention, the height of the flange 113 is the same as the height of the protruding point 112.

As shown in fig. 1, 2 and 4, in a specific implementation process, the valve seat 2 includes a valve sleeve 22 and a connecting sleeve 23, the valve sleeve 22 is connected to the connecting sleeve 23, the valve plate 11 is disposed inside the valve sleeve 22, the valve rod 12 passes through the connecting sleeve 23, a sealing ring 221 is disposed on an inner wall of the valve sleeve 22, and the sealing ring 221 can be matched with an edge of the valve plate 11.

By adopting the scheme, the sealing ring 221 is matched with the edge of the valve plate 11, so that the valve is prevented from being leaked, and the sealing performance of the valve is improved.

In a specific implementation process, the sealing ring 221 may be made of a metal material or a non-metal material, and when the sealing ring 221 is made of a metal material, the sealing ring 221 may be made of copper, iron, stainless steel, or the like; when the sealing ring 221 is made of a non-metal material, the sealing ring 221 may be made of butyl rubber, fluororubber, or the like.

As shown in fig. 4, in a preferred embodiment of the present invention, the valve plate 11 is further provided with a sealing ring 114, the outer side of the flange 113 is provided with a clamping groove 115, the sealing ring 114 is embedded in the clamping groove 115, and the sealing ring 114 can be matched with the sealing ring 221.

By adopting the scheme, when the valve is closed, the sealing ring 114 can be matched with the sealing ring 221, so that the valve is prevented from being leaked, and the tightness of the valve is improved.

In the specific implementation, as shown in fig. 4, connection rings 222 are disposed on two sides of the valve housing 22, the connection rings 222 are used for connecting with a pipeline to connect the vacuum butterfly valve into the pipeline, and a second connection hole 2221 is disposed on the connection ring 222.

As shown in fig. 1, in a specific implementation process, the second connection holes 2221 are uniformly arranged at the edge of the connection ring 222.

By adopting the above scheme, the vacuum butterfly valve is connected to the pipeline through the connection ring 222, and the connection ring 222 is provided with the second connection hole 2221, so that the vacuum butterfly valve is convenient to disassemble and assemble.

In a specific implementation process, as shown in fig. 1, the vacuum butterfly valve further includes a driving device 3, where the driving device 3 is configured to drive the valve rod 12 to rotate, and the driving device 3 includes a device housing and a motor, where the motor is disposed inside the device housing, the motor is connected to the valve rod 12, and the motor is capable of driving the valve rod 12 to rotate.

By adopting the scheme, the valve rod 12 is driven to rotate by the motor, manpower is not needed, and the operation difficulty is reduced.

In a specific implementation, the device housing is arranged on the outer surface of the drive device 3.

In a specific implementation process, the driving device 3 may be an electric driving device or a valve that is rotated by manpower.

As shown in fig. 1 and 2, in a preferred embodiment of the present invention, an upper connection plate 231 is disposed at an upper end of the connection sleeve 23, and the connection sleeve 23 is connected to the device housing through the upper connection plate 231.

By adopting the scheme, the connection strength is improved.

It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall into the protection scope of the claims of the present invention.

Claims

1. A vacuum butterfly valve, comprising:

the valve body (1), the valve body (1) comprises a valve plate (11) and a valve rod (12), the valve plate (11) is connected with the valve rod (12), the valve rod (12) can drive the valve plate (11) to overturn, the valve rod (12) comprises a lower end rod (121), and an annular groove (1211) is formed in the outer wall of the lower end rod (121);

valve seat (2), valve seat (2) lower extreme is provided with end rod groove (21), lower extreme pole (121) stretch into in end rod groove (21), end rod groove (21) lateral wall is provided with bulge loop (211), annular (1211) cooperatees with bulge loop (211).

2. The vacuum butterfly valve of claim 1, wherein: a lower connecting plate (212) is arranged on the outer side of the end rod groove (21), and a bottom plate (213) movably connected with the lower connecting plate (212) is arranged at the bottom of the end rod groove (21).

3. The vacuum butterfly valve of claim 1 or 2, wherein: valve body (1) still includes connecting rod (13), valve rod (12) are provided with first connecting hole (122), valve plate (11) are provided with connecting groove (111), connecting rod (13) pass first connecting hole (122), connecting rod (13) tip stretches into connecting groove (111).

4. The vacuum butterfly valve of claim 3, wherein: valve plate (11) still are provided with bump (112), the notch setting of bump (112) relative spread groove (111) is in valve plate (11) opposite side.

5. The vacuum butterfly valve of claim 4, wherein: the salient point (112) is arranged on an extension line extending inwards from the connecting groove (111).

6. The vacuum butterfly valve of claim 1 or 5, wherein: the valve plate (11) is provided with a flange (113), and the flange (113) is arranged on the periphery of the valve plate (11) in a surrounding mode.

7. The vacuum butterfly valve of claim 6, wherein: valve seat (2) are including valve barrel (22) and adapter sleeve (23), valve barrel (22) are connected with adapter sleeve (23), valve plate (11) set up inside valve barrel (22), valve rod (12) pass adapter sleeve (23), valve barrel (22) inner wall is provided with sealing ring (221), sealing ring (221) can with valve plate (11) edge cooperatees.

8. The vacuum butterfly valve of claim 7, wherein: valve plate (11) still is provided with sealing washer (114), flange (113) outside is provided with draw-in groove (115), sealing washer (114) inlay in draw-in groove (115), sealing washer (114) can cooperate with sealing ring (221).

9. The vacuum butterfly valve of claim 8, wherein: and connecting rings (222) are arranged on two sides of the valve sleeve (22), the connecting rings (222) are used for being connected with a pipeline to connect the vacuum butterfly valve into the pipeline, and second connecting holes (2221) are formed in the connecting rings (222).

10. The vacuum butterfly valve of claim 1 or 9, wherein: the vacuum butterfly valve further comprises a driving device (3), wherein the driving device (3) is used for driving the valve rod (12) to rotate, the driving device (3) comprises a device shell and an electric motor, the electric motor is arranged inside the device shell and connected with the valve rod (12), and the electric motor can drive the valve rod (12) to rotate.