CN222085178U - Novel pneumatic expansion butterfly valve - Google Patents

Abstract

The utility model discloses a novel pneumatic expansion butterfly valve, which relates to the technical field of expansion butterfly valves, and comprises a shell, wherein an air pump is arranged above the shell and is used for conveying air to an expansion pipe, the output end of the air pump is fixedly provided with the expansion pipe, one end of the expansion pipe is fixedly provided with a connecting block, one side of the connecting block is fixedly connected with the outer surface of the shell, one side of the shell is provided with an expansion groove, the inner surface of the expansion groove is provided with an expansion rubber ring, one side of the expansion rubber ring is provided with a closing groove, the inner surface of the closing groove is fixedly provided with two rotary rubber rings, the outer surface of the expansion rubber ring is provided with a fixing groove, and the inner surface of the fixing groove is attached to the inner surface of the expansion groove.

Description

Novel pneumatic expansion butterfly valve

Technical Field

The utility model relates to the technical field of expansion butterfly valves, in particular to a novel pneumatic expansion butterfly valve.

Background

The butterfly valve is also called as a flap valve, and is a regulating valve with simple structure, the butterfly valve capable of being used for the on-off control of low-pressure pipeline medium is a valve in which a closing member is a disc and rotates around a valve shaft to achieve the opening and closing, and the valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive mediums, slurry, oil products, liquid metal, radioactive mediums and the like. The pipe is mainly used for cutting and throttling. The butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly valve opening and closing piece in the valve body, so that the purpose of opening and closing or adjusting is achieved.

However, the prior art has the following problems:

Firstly, when the butterfly valve is closed, most novel pneumatic expansion butterfly valves in the prior art cannot be well expanded, so that gaps are easy to appear after the novel pneumatic expansion butterfly valves are closed;

Secondly, when the butterfly valve is closed, most novel pneumatic expansion butterfly valves cannot be closed well, so that the novel pneumatic expansion butterfly valves are easy to scratch when closed.

In view of the above problems, the inventors propose a novel pneumatic expansion butterfly valve for solving the above problems.

Disclosure of utility model

The utility model aims to solve the problems that most novel pneumatic expansion butterfly valves cannot be well expanded and most novel pneumatic expansion butterfly valves cannot be well closed, and provides a novel pneumatic expansion butterfly valve.

In order to solve the technical problems, the novel pneumatic expansion butterfly valve comprises a shell, an air pump is arranged above the shell and is used for conveying air to an expansion pipe, the output end of the air pump is fixedly provided with the expansion pipe, one end of the expansion pipe is fixedly provided with a connecting block, one side of the connecting block is fixedly connected with the outer surface of the shell, one side of the shell is provided with an expansion groove, the inner surface of the expansion groove is provided with an expansion rubber ring, one side of the expansion rubber ring is provided with a closing groove, the inner surface of the closing groove is fixedly provided with two rotating rubber rings, the outer surface of the expansion rubber ring is provided with a fixing groove, the inner surfaces of the fixing grooves are attached to the inner surfaces of the expansion grooves, one ends of the opposite surfaces of the two rotating rubber rings are respectively provided with a rotating groove, the inner surfaces of the two rotating grooves are respectively attached to the outer surface of a rotating rod in a rotating mode, one side of the connecting block is provided with a connecting port, and the connecting port is matched with the expansion pipe.

Preferably, the surface fixing of shell is equipped with the mount, the upper end of mount is fixed and is equipped with the pneumatic valve, the pneumatic valve is in order to rotate the dwang, the output of pneumatic valve is fixed and is equipped with the dwang, the surface of dwang is equipped with the dwang, the fixed butterfly valve plate that is equipped with in one side of dwang, the rotation draw-in groove has been seted up to the upper end of mount, and rotates the internal surface of draw-in groove and the surface rotation laminating of dwang, the fixed draw-in groove has been seted up to the upper end of dwang, and the internal surface of fixed draw-in groove and the surface fixed connection of dwang, the surface of butterfly valve plate and the internal surface of closed groove laminating mutually.

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

1. According to the novel pneumatic expansion butterfly valve, when the novel pneumatic expansion butterfly valve needs to be closed, the novel pneumatic expansion butterfly valve can be expanded after being closed, and the left gaps can be blocked and filled, so that the novel pneumatic expansion butterfly valve can be well expanded;

2. According to the butterfly valve plate, when the novel pneumatic expansion butterfly valve needs to be closed, the butterfly valve plate is closed in an eccentric motion, so that scratch on the inner wall during closing can be reduced, and the novel pneumatic expansion butterfly valve can be closed well.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model.

FIG. 2 is a portion of the present utility model schematic structural section.

FIG. 3 is a portion of the present utility model schematic structural section.

In the figure, 1, a shell, 20, an air pump, 21, a rotating rubber ring, 22, a rotating groove, 23, an expanding rubber ring, 24, a fixed groove, 25, a closing groove, 26, an expanding pipe, 27, a connecting block, 28, a connecting port, 29, an expanding groove, 30, a pneumatic valve, 31, a fixed frame, 32, a rotating clamping groove, 33, a rotating rod, 34, a fixed clamping groove, 35, a rotating block, 36 and a butterfly valve plate.

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, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

1-2, The utility model provides a novel pneumatic expansion butterfly valve, which comprises a housing 1, an air pump 20 is arranged above the housing 1, an expansion pipe 26 is fixedly arranged at the output end of the air pump 20, one end of the expansion pipe 26 is fixedly provided with a connecting block 27, one side of the connecting block 27 is fixedly connected with the outer surface of the housing 1, one side of the connecting block 27 is provided with a connecting port 28, the connecting port 28 is matched with the expansion pipe 26 for use, the expansion pipe 26 can convey air into the connecting port 28 through the connecting port 28 by adopting the technical scheme, one side of the housing 1 is provided with an expansion groove 29, the inner surface of the expansion groove 29 is provided with an expansion rubber ring 23, the outer surface of the expansion rubber ring 23 is provided with a fixed groove 24, the inner surface of the fixed groove 24 is attached to the inner surface of the expansion rubber ring 29, the expansion rubber ring 29 can be limited in the fixed groove 24 by adopting the technical scheme, one side of the expansion rubber ring 23 is provided with a closed groove 25, the inner surface of the closed groove 25 is fixedly provided with two rotating rubber rings 21, the two opposite rotating rings 21 can rotate to the inner surface of the housing 22 through the two rotating grooves 22, and the inner surface of the expansion rubber ring 22 can be rotatably closed by adopting the technical scheme, and the inner surface of the expansion rubber ring 22 can rotate to be rotatably filled with the inner surface of the expansion rubber ring 22 through the inner surface of the expansion rubber ring 22, and the inner surface of the expansion rubber ring 22 can rotate the inner surface of the expansion rubber ring, and can rotate the inner surface of the expansion rubber ring is made to rotate through the fixed groove 22, and can rotate the inner surface of the expansion groove 22 through the fixed groove is made. Thereby realizing the purpose that the novel pneumatic expansion butterfly valve can be well expanded.

In the second embodiment, as shown in fig. 3, a fixing frame 31 is fixedly arranged on the outer surface of the casing 1, a rotation clamping groove 32 is formed in the upper end of the fixing frame 31, the inner surface of the rotation clamping groove 32 is rotationally attached to the outer surface of the rotation rod 33, by adopting the technical scheme, the rotation rod 33 can rotate on the inner surface of the rotation clamping groove 32 through the rotation clamping groove 32, a pneumatic valve 30 is fixedly arranged at the upper end of the fixing frame 31, the rotation rod 33 is fixedly arranged at the output end of the pneumatic valve 30, a rotating block 35 is arranged on the outer surface of the rotation rod 33, a fixing clamping groove 34 is formed in the upper end of the rotating block 35, the inner surface of the fixing clamping groove 34 is fixedly connected with the outer surface of the rotation rod 33, the rotation rod 33 can be fixed on the inner surface of the fixing clamping groove 34 through the fixing clamping groove 34, one side of the rotation block 35 is fixedly provided with a valve plate 36, the outer surface of the plate 36 is attached to the inner surface of the closing groove 25, the inner surface of the closing groove 25 can be limited through the closing groove 25, the inner surface of the butterfly valve 25 can be driven to rotate on the inner surface of the closing groove 25, the butterfly valve can be well rotated through the butterfly valve 31, and the butterfly valve 33 can be driven to rotate on the inner surface of the butterfly valve 33, and the inner surface of the butterfly valve can be simultaneously rotated to rotate, and the butterfly valve plate 33 can be rotated to rotate by the novel butterfly valve 33, and the butterfly plate 33 can be rotated by the rotation plate 33.

The working principle is that by adopting the technical scheme, the rotating rod 33 can rotate in the rotating groove 22 through the rotating groove 22, the air pump 20 above the shell 1 is started to convey air into the connecting port 28 in the connecting block 27 through the expansion pipe 26, so that air can circulate between the expansion groove 29 and the fixed groove 24, the expansion rubber ring 23 can expand, and gaps generated when the novel pneumatic expansion butterfly valve is closed can be filled and blocked, so that the novel pneumatic expansion butterfly valve can be well expanded, the butterfly valve plate 36 can be limited on the inner surface of the closing groove 25 through the closing groove 25 by adopting the technical scheme, the pneumatic valve 30 on the fixing frame 31 can be started to drive the rotating rod to rotate in the rotating clamping groove 32, and meanwhile, the rotating rod can also rotate in the rotating groove 22 in the rotating rubber ring 21 through the fixed clamping groove 34, so that the butterfly plate 36 can rotate on the inner surface of the closing groove 25, and the novel pneumatic expansion butterfly valve plate can be well closed.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (8)

1. A novel pneumatic expansion butterfly valve comprises a shell (1) and is characterized in that an air pump (20) is arranged above the shell (1), an expansion pipe (26) is fixedly arranged at the output end of the air pump (20), a connecting block (27) is fixedly arranged at one end of the expansion pipe (26), one side of the connecting block (27) is fixedly connected with the outer surface of the shell (1), an expansion groove (29) is formed in one side of the shell (1), an expansion rubber ring (23) is arranged on the inner surface of the expansion groove (29), a closed groove (25) is formed in one side of the expansion rubber ring (23), and two rotating rubber rings (21) are fixedly arranged on the inner surface of the closed groove (25).

2. The novel pneumatic expansion butterfly valve according to claim 1, wherein a fixing frame (31) is fixedly arranged on the outer surface of the housing (1), a pneumatic valve (30) is fixedly arranged at the upper end of the fixing frame (31), a rotating rod (33) is fixedly arranged at the output end of the pneumatic valve (30), a rotating block (35) is arranged on the outer surface of the rotating rod (33), and a butterfly valve plate (36) is fixedly arranged on one side of the rotating block (35).

3. The novel pneumatic expansion butterfly valve according to claim 1, wherein the outer surface of the expansion rubber ring (23) is provided with a fixing groove (24), and the inner surface of the fixing groove (24) is attached to the inner surface of the expansion groove (29).

4. The novel pneumatic expansion butterfly valve according to claim 1, wherein one end of each of opposite faces of the two rotary rubber rings (21) is provided with a rotary groove (22), and inner surfaces of the two rotary grooves (22) are rotationally attached to an outer surface of the rotary rod (33).

5. A novel pneumatic expansion butterfly valve as claimed in claim 1, wherein a connecting port (28) is provided on one side of the connecting block (27), and the connecting port (28) is used in cooperation with the expansion pipe (26).

6. The novel pneumatic expansion butterfly valve as claimed in claim 2, wherein a rotating clamping groove (32) is formed in the upper end of the fixing frame (31), and the inner surface of the rotating clamping groove (32) is rotationally attached to the outer surface of the rotating rod (33).

7. The novel pneumatic expansion butterfly valve according to claim 2, wherein a fixing slot (34) is formed in the upper end of the rotating block (35), and the inner surface of the fixing slot (34) is fixedly connected with the outer surface of the rotating rod (33).

8. A new pneumatic expansion butterfly valve according to claim 2, characterised in that the outer surface of the butterfly valve plate (36) is in abutment with the inner surface of the closing groove (25).