CN223049424U - Multi-layer sealing telescopic butterfly valve - Google Patents

Abstract

The utility model discloses a multi-layer sealing telescopic butterfly valve, which comprises a butterfly valve main body, wherein one end of the interior of the butterfly valve main body is telescopic, two ends of the butterfly valve main body are fixedly connected with flange plates, one end of the telescopic pipe is fixedly connected with a telescopic plate, a screw rod penetrates through the telescopic plate and the flange plate on one side, a plurality of nuts are connected with the inner threads of the screw rod, a first sealing block is fixedly connected with the inner side of the telescopic pipe, one end of the telescopic pipe is fixedly connected with a sealing ring, the other end of the telescopic pipe is provided with a first sealing groove, and a second sealing block is inserted into the first sealing groove. Through being provided with butterfly valve main part, flexible pipe, screw rod and expansion plate, through carrying out being connected with the pipeline with the butterfly valve main part, and can be according to the extension control of needs to flexible pipe in the connection process, play when conveniently being connected the pipeline and extend accomplish telescopic connection effect, improve the use convenience.

Description

Multi-layer sealing telescopic butterfly valve

Technical Field

The utility model relates to the technical field of telescopic butterfly valves, in particular to a multi-layer sealing telescopic butterfly valve.

Background

The telescopic butterfly valve is a valve which uses a circular butterfly plate as an opening and closing member and rotates along with a valve rod to open, close and regulate a fluid channel, and is used as a component for realizing on-off and flow control of a pipeline system.

The expansion butterfly valve in the prior art can be used according to the extension control of required length when using, but is relatively poor to the leakproofness effect, and the influence leakproofness of permeating appears easily, and the damage to the case can be caused to the inside if the water pressure is great to the expansion butterfly valve, influences the use simultaneously.

Disclosure of utility model

The utility model aims to provide a multi-layer sealed telescopic butterfly valve, which is characterized in that a butterfly valve main body is connected with a pipeline, and the extension of a telescopic pipe can be controlled according to the requirement in the connection process, so that the telescopic connection effect can be conveniently achieved when the pipeline is connected, and the use convenience is improved.

In order to achieve the aim, the multi-layer sealing telescopic butterfly valve comprises a butterfly valve body, wherein a telescopic pipe is arranged at one end of the interior of the butterfly valve body in a telescopic manner, flange plates are fixedly connected to two ends of the butterfly valve body, a telescopic plate is fixedly connected to one end of the telescopic pipe, a screw rod penetrates through the space between the telescopic plate and the flange plate at one side, a plurality of nuts are connected to the inner threads of the screw rod, and a first sealing block is fixedly connected to the inner side of the telescopic pipe;

one end fixedly connected with sealing washer of flexible pipe, first seal groove has been seted up to the other end of flexible pipe, the inside grafting of first seal groove has the second sealing piece, the inner wall fixed connection of second sealing piece and butterfly valve main part.

According to the multi-layer sealing telescopic butterfly valve, a buffer plate is arranged on the other side of the inner part of the butterfly valve main body, and a through hole is formed in the buffer plate.

According to the multilayer sealed telescopic butterfly valve, four corrugated pipes are fixedly connected to the inner side circumference of the buffer plate, one end of each corrugated pipe is fixedly connected with a limiting block, and the sealing effect can be achieved through the corrugated pipes.

According to the multi-layer sealing telescopic butterfly valve, the rigid spring is sleeved in the corrugated pipe, and elastic buffering can be achieved through the rigid spring.

According to the multi-layer sealing telescopic butterfly valve, a hand wheel is arranged in the middle of the top end of the butterfly valve body, a valve core is arranged in the middle of the inner part of the butterfly valve body, and the butterfly valve is closed and opened through the valve core.

According to the multi-layer sealing telescopic butterfly valve, the number of the nuts is three, and the nuts can be limited and supported through the nut structure.

According to the multilayer sealed telescopic butterfly valve, the second sealing groove is formed in the inner side of the flange plate, the first sealing block is in plug-in fit with the second sealing groove, and the tightness is improved through the sealing fit of the first sealing block and the second sealing groove.

Compared with the prior art, the utility model has the beneficial effects that:

1. The butterfly valve is provided with the butterfly valve body, the telescopic pipe, the screw rod and the telescopic disk, the butterfly valve body is connected with a pipeline, the telescopic pipe can be controlled according to the extension required in the connection process, the telescopic connection can be conveniently achieved when the pipeline is connected, the use convenience is improved, the screw rod can penetrate through the flange plate and the telescopic disk after the butterfly valve body is telescopic to the required length, then nuts on two sides in the middle can rotate, the flange plate and the telescopic disk can be abutted, and finally the butterfly valve is connected with the connected pipeline flange through the end nuts.

2. The buffer plate, the rigid spring and the through hole are arranged, when the pressure is high in the circulation process, the water pressure pushes the buffer plate, the buffer plate plays a role in buffering the water pressure, the rigid spring elastically returns pressure, the water pressure is permeated and discharged through the through hole, the internal pressure of the butterfly valve body can be slowly released, and the problem that the valve core is damaged due to overlarge pressure is prevented.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described below with reference to the drawings and examples;

FIG. 1 is a perspective view of a multi-layer seal expansion butterfly valve of the present utility model;

FIG. 2 is a cross-sectional elevation view of a multi-layer seal expansion butterfly valve of the utility model;

FIG. 3 is an enlarged view of the utility model at A in FIG. 2;

FIG. 4 is a cross-sectional elevation view of a bellows of a multi-layer seal butterfly valve of the utility model.

In the figure, 1, a butterfly valve main body, 2, a hand wheel, 3, a screw rod, 4, a nut, 5, a telescopic disc, 6, a telescopic tube, 7, a flange disc, 8, a buffer plate, 9, a through hole, 10, a limiting block, 11, a first sealing block, 12, a sealing ring, 13, a first sealing groove, 14, a second sealing groove, 15, a second sealing block, 16, a corrugated tube, 17 and a rigid spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which would be apparent to one of ordinary skill in the art without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc., are based on directions or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify description, rather than to indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model, and that the terms "first", "second", "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly specified or defined, the terms "mounted", "connected" should be construed broadly, for example, may be fixedly connected, may be detachably connected, or integrally connected, may be mechanically connected, may be directly connected, may be indirectly connected through intermediate mediums, or may be in communication with the inside of two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

1-4, The utility model provides a technical scheme, which comprises a butterfly valve main body 1, a telescopic pipe 6 is telescopic at one inner end of the butterfly valve main body 1, the butterfly valve main body 1 is connected with a pipeline, the telescopic pipe 6 can be controlled according to the extension required in the connection process, the telescopic connection can be conveniently completed when the pipeline is connected, the convenience in use is improved, flange plates 7 are fixedly connected at two ends of the butterfly valve main body 1, a telescopic disk 5 is fixedly connected at one end of the telescopic pipe 6, a screw rod 3 penetrates between the telescopic disk 5 and one side of the flange plate 7, the screw rod 3 penetrates through the flange plate 7 and the telescopic disk 5 after the butterfly valve main body is telescopic to the required length, then the screw rod 3 can rotate through nuts 4 at two sides in the middle, the flange plate 7 and the telescopic disk 5 can be abutted, a plurality of nuts 4 are connected with internal threads of the screw rod 3, a first sealing block 11 is fixedly connected at the inner side of the telescopic pipe 6, a second sealing block 14 is arranged at the middle of the top end of the butterfly valve main body 1, a valve core is arranged in the inner part of the butterfly valve main body 1, the number of the nuts 4 is three, a second sealing block 14 and a sealing groove 14 is arranged at the inner side of the flange plate 7, the inner side of the flange plate is matched with the second sealing groove 14 in a sealing groove, and the sealing groove is sealed in a sealing way is prevented from being increased;

The one end fixedly connected with sealing washer 12 of flexible pipe 6, first seal groove 13 has been seted up to the other end of flexible pipe 6, the inside grafting of first seal groove 13 has second sealing piece 15, the inner wall fixed connection of second sealing piece 15 and butterfly valve main part 1, the inside opposite side of butterfly valve main part 1 is provided with buffer plate 8, realize the circulation through butterfly valve main part 1, when pressure is great appears in the circulation in-process, the water pressure will be to the promotion of buffer plate 8, buffer plate 8 plays the buffering this moment, can play the contradiction effect to water pressure, through-hole 9 has been seted up to the inside of buffer plate 8, four bellows 16 of inboard circumference fixedly connected with of buffer plate 8, it is flexible to improve the ripple through bellows 6, can prevent moisture infiltration to the inside of rigid spring 17, influence the use, the one end fixedly connected with stopper 10 of bellows 16, the inside cover of bellows 16 is equipped with rigid spring 17, rigid spring 17 elasticity back pressure, later water pressure is discharged through the infiltration of through-hole 9, can play slowly-releasing to the internal pressure of butterfly valve main part 1, prevent damage problem to cause the pressure too big appearance to the case.

The butterfly valve is characterized in that the butterfly valve body 1 is connected with a pipeline in use, the extension of the telescopic pipe 6 can be controlled according to the requirement in the connection process, the telescopic connection effect is conveniently achieved when the pipeline is connected, the use convenience is improved, the screw 3 can penetrate through the flange 7 and the telescopic disk 5 after the butterfly valve body is telescopic to the required length, then the screw 4 on two sides in the middle is rotated, the flange 7 and the telescopic disk 5 can be abutted, finally the end nut 4 is connected with the connected pipeline flange, the position of the telescopic pipe 6 is fixed, after the butterfly valve body 1 is installed, liquid can circulate through the butterfly valve body 1, when the pressure is high in the circulation process, the water pressure pushes the buffer plate 8, at the moment, the buffer plate 8 plays a role of abutting the water pressure, the rigid spring 17 elastically returns to the pressure, then the water pressure is permeated and discharged through the through hole 9, the internal pressure of the butterfly valve body 1 can be slowly released, and the problem that the pressure is excessively high to the valve core is prevented from being damaged is solved.

It should be noted that the foregoing description is only a preferred embodiment of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it should be understood that modifications, equivalents, improvements and modifications to the technical solution described in the foregoing embodiments may occur to those skilled in the art, and all modifications, equivalents, and improvements are intended to be included within the spirit and principle of the present utility model.

Claims (7)

1. The multi-layer sealing telescopic butterfly valve comprises a butterfly valve main body (1), and is characterized in that one end of the inside of the butterfly valve main body (1) is telescopic with a telescopic pipe (6), two ends of the butterfly valve main body (1) are fixedly connected with flange plates (7), one end of the telescopic pipe (6) is fixedly connected with a telescopic plate (5), a screw rod (3) penetrates through the space between the telescopic plate (5) and the flange plate (7) on one side, a plurality of nuts (4) are connected with the internal threads of the screw rod (3), and a first sealing block (11) is fixedly connected with the inner side of the telescopic pipe (6);

One end fixedly connected with sealing washer (12) of flexible pipe (6), first seal groove (13) have been seted up to the other end of flexible pipe (6), the inside grafting of first seal groove (13) has second sealing block (15), the inner wall fixed connection of second sealing block (15) and butterfly valve main part (1).

2. The multi-layer sealing telescopic butterfly valve of claim 1, wherein a buffer plate (8) is arranged on the other side of the inner part of the butterfly valve main body (1), and a through hole (9) is formed in the buffer plate (8).

3. The multi-layer sealing telescopic butterfly valve of claim 2, wherein four corrugated pipes (16) are fixedly connected to the inner side circumference of the buffer plate (8), and a limiting block (10) is fixedly connected to one end of each corrugated pipe (16).

4. A multi-layer sealed expansion butterfly valve as claimed in claim 3, characterized in that the bellows (16) is internally sleeved with a rigid spring (17).

5. A multi-layer sealed telescopic butterfly valve as claimed in claim 1, wherein a hand wheel (2) is arranged in the middle of the top end of the butterfly valve body (1), and a valve core is arranged in the middle of the inner part of the butterfly valve body (1).

6. A multi-layer sealing expansion butterfly valve as claimed in claim 1, characterized in that the number of nuts (4) is three.

7. The multi-layer sealing telescopic butterfly valve of claim 1, wherein the inner side of the flange plate (7) is provided with a second sealing groove (14), and the first sealing block (11) and the second sealing groove (14) are in plug-in fit.