CN217874215U - Butterfly valve with compression-resistant structure - Google Patents

Abstract

The utility model discloses a butterfly valve of compressive structure, the on-line screen storage device comprises a base, the upper surface of base is provided with the valve body, be provided with the flange on the outer wall of valve body, all be provided with the frame on the preceding terminal surface of valve body and the rear end face, the frame passes through bolt and valve body fixed connection, the inside of frame is provided with the buffer layer, the buffer layer passes through the inner wall fixed connection of reinforcement and frame, the bottom of valve body is provided with the bearing, the valve body passes through the bearing and is connected with the valve rod key-type, be provided with the connection lug on the outer wall of valve rod, and connect the inside that the lug is located the valve body, the one side of connecting the lug is provided with the butterfly plate, and the butterfly plate passes through welded connection with the connection lug, all be provided with the sealing washer on the both sides outer wall of butterfly plate, the valve body passes through screw thread and valve gap fixed connection. The utility model discloses a buffer layer that sets up can reduce the medium to the impact pressure of butterfly plate at the in-process of butterfly valve transmission medium to reach the purpose of resistance to compression.

Description

Butterfly valve with compression-resistant structure

Technical Field

The utility model relates to a butterfly valve technical field specifically is a compressive structure's butterfly valve.

Background

A butterfly valve, also called a flap valve, is a regulating valve with a simple structure, and can be used for on-off control of low-pressure pipeline media, namely a valve with a closing part (a valve clack or a butterfly plate) which is a disc and rotates around a valve shaft to open and close, and 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.

In the process of transmitting media, because no effective pressure-resistant measures are provided, the damage to the butterfly plate inside the butterfly valve is caused frequently because the impact pressure of the media is too large, and the butterfly valve cannot transmit and control the media with too large pressure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compressive structures's butterfly valve to the problem of carrying out transmission control to the too big medium of pressure that provides in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a compressive structure's butterfly valve, includes the base, the upper surface of base is provided with the valve body, be provided with the flange on the outer wall of valve body, all be provided with the frame on the preceding terminal surface of valve body and the rear end face, the frame passes through bolt and valve body fixed connection, the inside of frame is provided with the buffer layer, the buffer layer passes through the inner wall fixed connection of reinforcement and frame, the bottom of valve body is provided with the bearing, the valve body passes through bearing and valve rod key-type connection, be provided with connecting lug on the outer wall of valve rod, and connecting lug is located the inside of valve body, one side of connecting the lug is provided with the butterfly plate, and the butterfly plate passes through welded connection with connecting lug, be provided with the sealing washer on the butterfly plate, the valve body passes through screw thread and valve gap fixed connection, be provided with the filler on the outer wall of valve rod, the filler upper surface is provided with gland, gland's top is provided with the guide, the upper surface of guide is provided with the connecting piece, the top of connecting piece is provided with the cylinder, the valve rod runs through guide and connecting piece and extends to the inside of cylinder.

Preferably, the buffer layer is composed of a mesh cage and granular fillers, and the mesh cage is positioned at two sides of the granular fillers in the thickness direction.

Preferably, a turbine speed reducer is arranged on the outer wall of the valve rod and is located below the valve cover.

Preferably, the front end face of the cylinder is provided with two adjusting screws.

Preferably, the vertical center line of the base coincides with the vertical center line of the valve body.

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

1. the utility model discloses a buffer layer that sets up in valve body both sides can play the effect of resistance to compression, and when butterfly valve transmission medium, the medium line passes through the buffer layer and flows through the butterfly plate department of opening again, and when the buffer layer, the buffer layer has reduced partly impact pressure of medium for the medium is when butterfly plate department, to the impact pressure greatly reduced of butterfly plate, has avoided the problem that the butterfly plate damaged because the impact pressure of medium is too big, plays the effect of resistance to compression and protection butterfly plate.

2. Through the turbine reduction gear through setting up on the valve rod, butterfly valve and valve rod itself do not have the auto-lock ability, for the location of butterfly plate, will install the turbine reduction gear additional on the valve rod. By adopting the worm reducer, the butterfly plate can have self-locking capability, so that the butterfly plate stops at any position, and the operating performance of the valve can be improved.

3. The adjusting screw that sets up through the preceding terminal surface of cylinder can play the effect that the butterfly valve was opened and close of regulation, and when the butterfly valve opened not in place, the adjusting screw on the left side was transferred and is opened, and when the butterfly valve closed not in place, the adjusting screw on the right was transferred and is closed, through controlling adjusting screw for the switch of butterfly valve is more stable.

Drawings

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

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a partially enlarged view of a portion a in fig. 2 according to the present invention.

In the figure: 1. a base; 2. a valve body; 3. a bolt; 4. an outer frame; 5. a buffer layer; 6. a flange; 7. a valve cover; 8. A guide member; 9. a connecting member; 10. adjusting screws; 11. a cylinder; 12. a seal ring; 13. a butterfly plate; 14. a valve stem; 15. A packing gland; 16. a filler; 17. a turbo reducer; 18. a bearing; 19. a connecting lug; 20. a reinforcement.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, the present invention provides an embodiment: a butterfly valve with a compression-resistant structure comprises a base 1, wherein a valve body 2 is arranged on the upper surface of the base 1, a flange 6 is arranged on the outer wall of the valve body 2, the flange 6 is used for connecting two sides of the valve body 2 to upper guide pipes, outer frames 4 are arranged on the front end surface and the rear end surface of the valve body 2, the outer frames 4 are fixedly connected with the valve body 2 through bolts 3, the bolts 3 can effectively fix the outer frames 4 on the valve body 2, a buffer layer 5 is arranged inside the outer frames 4, the buffer layer 5 can play a role in relieving impact pressure on a butterfly plate 13, the buffer layer 5 is fixedly connected with the inner wall of the outer frame 4 through a reinforcing member 20, the reinforcing member 20 can play a role in reinforcing the buffer layer 5, so that the connection between the buffer layer 5 and the outer frames 4 is firmer, a bearing 18 is arranged at the bottom of the valve body 2, the bearing 18 can play a role in assisting a valve rod 14 to rotate, and reduce friction force during rotation, the valve body 2 is connected with a valve rod 14 through a bearing 18 in a key mode, the valve rod 14 can control opening and closing of a butterfly valve through rotation, a connecting lug 19 is arranged on the outer wall of the valve rod 14, the connecting lug 19 is located inside the valve body 2, a butterfly plate 13 is arranged on one side of the connecting lug 19, the butterfly plate 13 plays a role in intercepting, the butterfly plate 13 is connected with the connecting lug 19 through welding, a sealing ring 12 is arranged on the butterfly plate 13, the sealing ring 12 can play a sealing role, leakage of media from a connecting part of the butterfly plate 13 and the valve body 2 is avoided when the butterfly valve is closed, the valve body 2 is fixedly connected with a valve cover 7 through threads, a packing 16 is arranged on the outer wall of the valve rod 14, a packing gland 15 is arranged on the upper surface of the packing 16, a guide part 8 is arranged above the packing gland 15, the guide part 8 can play a role in guiding and limiting the valve rod 14, and a connecting part 9 is arranged on the upper surface of the guide part 8, the connecting piece 9 is used for connecting guide 8 and cylinder 11, is provided with cylinder 11 above the connecting piece 9, and valve rod 14 runs through guide 8 and connecting piece 9 and extends to the inside of cylinder 11, and cylinder 11 can play the effect that control valve rod 14 rotated.

The buffer layer 5 is composed of a net cage 51 and granular fillers 52, the net cage 51 is positioned at two sides of the granular fillers 52 in the thickness direction, and the granular fillers 52 are filled in the net cage 51. The cylinder mould 51 is latticed to every side has the bilayer, avoids inside graininess filler 52 to break away from, and double-deck cylinder mould 51 has anticreep grain effect.

The outer wall of the valve rod 14 is provided with the turbine reducer 17, the turbine reducer 17 is located below the valve cover 7, and the turbine reducer 17 can enable the butterfly plate 13 to have self-locking capacity, enable the butterfly plate 13 to stop at any position, improve the operation performance of the valve and play a role in positioning the butterfly plate 13.

Be provided with adjusting screw 10 on the preceding terminal surface of cylinder 11, and adjusting screw 10 is provided with two, and adjusting screw 10 can be when the butterfly valve is opened not in place, and adjusting screw 10 on the left side is transferred and is opened, and when the butterfly valve closed not in place, adjusting screw 10 on the right transfers and closes, through controlling adjusting screw 10 for the switch of butterfly valve is more stable.

The flange 6 passes through welded connection with the outer wall of valve body 2, and the flange 6 is provided with six, and the flange 6 can be connected the upper pipe way with the both ends of butterfly valve for connect more firmly.

The vertical center line of the base 1 coincides with the vertical center line of the valve body 2, and the base 1 is used for supporting the valve body 2, so that the valve body 2 can be stably placed on a horizontal plane.

The connecting lugs 19 are provided with two, the upper connecting lug 19 and the lower connecting lug 19 are symmetrical about the horizontal center line of the butterfly plate 13, the connecting lugs 19 are used for connecting the valve rod 14 and the butterfly plate 13 together, and when the valve rod 14 rotates, the butterfly plate 13 is driven to rotate along with the connecting lugs, so that the opening and closing operation of the butterfly valve is controlled.

The working principle is as follows: during the use, both ends and the pipe fixed connection of butterfly valve are through flange 6 on the outer wall of valve body 2, cylinder 11 drives valve rod 14 and rotates, through controlling left adjusting screw 10, open butterfly plate 13 of butterfly valve completely, the medium passes through buffer layer 5 earlier, under buffer layer 5's effect, the impact pressure of medium reduces, medium after the decompression passes valve body 2, flow in the opposite side pipe of being connected with valve body 2, can control the opening angle of butterfly plate 13 through control cylinder 11, thereby the flow after the control medium passes through valve body 2, after the transmission is accomplished, through controlling right side adjusting screw 10, make butterfly plate 13 close, cut off the medium, accomplish the work of opening and close or adjusting medium transmission.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (5)

1. The butterfly valve with the compression-resistant structure comprises a base (1) and is characterized in that a valve body (2) is arranged on the upper surface of the base (1), a flange (6) is arranged on the outer wall of the valve body (2), outer frames (4) are arranged on the front end surface and the rear end surface of the valve body (2), the outer frames (4) are fixedly connected with the valve body (2) through bolts (3), a buffer layer (5) is arranged inside the outer frames (4), the buffer layer (5) is fixedly connected with the inner wall of the outer frames (4) through a reinforcing member (20), a bearing (18) is arranged at the bottom of the valve body (2), the valve body (2) is in key connection with a valve rod (14) through the bearing (18), a connecting lug (19) is arranged on the outer wall of the valve rod (14), the connecting lug (19) is located inside the valve body (2), a butterfly plate (13) is arranged on one side of the connecting lug (19), the butterfly plate (13) is in welded connection with the connecting lug (19), a sealing ring (12) is arranged on the butterfly plate (13), the valve body (2) is fixedly connected with a valve cover (7) through a screw thread, and a packing gland (16) is arranged on the outer wall of the valve rod (14), the packing gland is characterized in that a guide part (8) is arranged above the packing gland (15), a connecting part (9) is arranged on the upper surface of the guide part (8), an air cylinder (11) is arranged above the connecting part (9), and the valve rod (14) penetrates through the guide part (8) and the connecting part (9) and extends to the inside of the air cylinder (11).

2. The butterfly valve with a pressure resistant structure of claim 1, wherein: the buffer layer (5) is composed of a net cage (51) and granular fillers (52), and the net cage (51) is located on two sides of the granular fillers (52) in the thickness direction.

3. The butterfly valve of claim 1 or 2, wherein: the outer wall of the valve rod (14) is provided with a turbine speed reducer (17), and the turbine speed reducer (17) is located below the valve cover (7).

4. The butterfly valve with a pressure resistant structure according to claim 1 or 2, wherein: the front end face of the air cylinder (11) is provided with two adjusting screws (10), and the number of the adjusting screws (10) is two.

5. The butterfly valve of claim 1 or 2, wherein: the vertical center line of the base (1) is superposed with the vertical center line of the valve body (2).

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