CN215445091U

CN215445091U - Double-flange butterfly valve with protective structure

Info

Publication number: CN215445091U
Application number: CN202121769003.3U
Authority: CN
Inventors: 王培安
Original assignee: Tianjin Shengyuan Danruisi Valve Co ltd
Current assignee: Tianjin Shengyuan Danruisi Valve Co ltd
Priority date: 2021-08-01
Filing date: 2021-08-01
Publication date: 2022-01-07
Anticipated expiration: 2031-08-01

Abstract

The utility model discloses a double-flange butterfly valve with a protection structure, which comprises a butterfly valve main body, wherein the top end of the butterfly valve main body is provided with a control shaft, the inside of the control shaft is rotatably connected with a rotating rod, the inside of the rotating rod is provided with a groove, the outer side wall of the control shaft is fixedly connected with a supporting plate, the surface of the supporting plate is fixedly provided with an electric push rod, the top end of the electric push rod is fixedly connected with a lug, the bottom end of the control shaft is provided with a valve plate, the surface of the valve plate is provided with a buffer component, and the buffer component comprises a sliding rod, a sliding sleeve, a top plate, a connecting rod, a protection plate and a waterproof rubber block.

Description

Double-flange butterfly valve with protective structure

Technical Field

The utility model relates to a double-flange butterfly valve, in particular to a double-flange butterfly valve with a protection structure.

Background

The butterfly valve has simple structure, small volume and light weight, and is composed of a few parts. And the valve can be quickly opened and closed only by rotating 90 degrees, the operation is simple, and meanwhile, the valve has good fluid control characteristics. The butterfly plate of the butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical channel of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, the rotation angle is 0-90 degrees, and when the disc-shaped butterfly plate rotates to 90 degrees, the valve is in a full-open state. When the flange butterfly valve is in a fully open position, the thickness of the butterfly plate is the only resistance when a medium flows through the valve body, so that the pressure drop generated by the valve is small, and the flange butterfly valve has a good flow control characteristic. The butterfly valve has two sealing types of elastic sealing and metal sealing. The utility model relates to an elastic sealing valve, wherein a sealing ring can be embedded on a valve body or attached to the periphery of a butterfly plate.

Patent numbers: CN106996461B discloses a fluorine-lined double eccentric flange butterfly valve, which is characterized in that a valve seat, a butterfly plate and a valve body are separated from a medium channel through a first fluorine-lined layer, a second fluorine-lined layer and a third fluorine-lined layer respectively, so that the valve body is prevented from being damaged by a medium, meanwhile, the valve seat and the butterfly plate are reliably sealed through the specific structures of the first fluorine-lined layer, the second fluorine-lined layer and the third fluorine-lined layer, a cavity is arranged to facilitate the action of the butterfly plate, so that the friction force is reduced, and a small amount of leakage occurs in time, the cavity can also contain the medium to prevent the medium from leaking, the first sealing part and the second sealing part are both L-shaped, so that the first fluorine-lined layer and the third fluorine-lined layer are sealed at right angles, the sealing effect is good, the medium leakage is avoided, the fluorine-lined layers are mutually matched to ensure that the product is good in sealing effect, the contact surface is reliable in sealing, and the utility model also has the advantages of simple structure, convenience in assembly, reliability in action, long service life and the like.

However, the above patents have the following disadvantages: 1. the above design is susceptible to valve washout and improvements are needed. 2. The handle is easy to move accidentally, so that the valve is opened, the safety is low, and improvement is needed.

Disclosure of Invention

The utility model mainly aims to provide a double-flange butterfly valve with a protection structure, which is not easy to break by flushing, can lock and unlock a handle, greatly enhances the safety coefficient and can effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides a two flange butterfly valves with protective structure, includes the butterfly valve main part, the top of butterfly valve main part is installed and is controlled the axle and control the inside rotation of axle and connect the bull stick, the inside of bull stick is seted up flutedly, the fixed surface who fixedly connected with backup pad and backup pad installs electric putter on controlling the lateral wall of axle, electric putter's top fixedly connected with lug, the surface mounting who controls the bottom of axle and install valve plate and valve plate has buffering subassembly, buffering subassembly includes slide bar, sliding sleeve, roof, connecting plate, connecting rod, guard plate and waterproof rubber piece.

Further, the equal fixedly connected with slide bar in upper and lower both sides of valve plate, sliding connection has the sliding sleeve on the slide bar lateral wall, the top fixedly connected with roof of slide bar, fixedly connected with connecting plate between the sliding sleeve, the left side fixedly connected with connecting rod of connecting plate and the left side fixedly connected with guard plate of connecting rod.

Furthermore, fixed mounting has waterproof rubber piece between the right side end of connecting plate and the surface of valve plate, and waterproof rubber piece has fine elasticity, can be fine cushion.

Furthermore, the top end of the rotating rod is fixedly connected with a handle, and the rotating rod is convenient to rotate by the handle.

Furthermore, the power output end of the electric push rod is connected with the power input end of the lug, and the electric push rod drives the lug to move back and forth.

Compared with the prior art, the utility model has the following beneficial effects: when water flow impacts a valve plate, most of middle water flow impacts a protection plate firstly, the protection plate starts to move towards the valve plate position, the protection plate drives a connecting plate to move towards the valve plate position, the connecting plate drives a sliding sleeve to move towards the valve plate position, the sliding sleeve moves towards the valve plate position along a sliding rod so as to extrude a waterproof rubber block, the waterproof rubber block utilizes the elasticity of rubber to play a certain buffering role so as to reduce the received force, so that the valve plate can be protected to prevent the valve plate from being damaged, when the opening and closing of a butterfly valve main body are required to be controlled by a handle, a rotating rod is rotated to the same horizontal position of a groove and a lug (the groove is slightly larger than the lug), then a built-in storage battery power supply is introduced into an electric push rod, the extension of the electric push rod is controlled by a controller on the electric push rod, the lug is inserted into the groove by the electric push rod, so that the rotating rod can drive the rotation of a control shaft when the rotating rod is rotated by the handle, thereby drive the rotation of valve plate, can accomplish the switch of butterfly valve main part (the butterfly valve main part is two flange butterfly valves), when need not control the butterfly valve main part, only need through the shortening of the controller control electric putter on the electric putter to extract the lug from the recess, when rotating the handle like this, the handle only can drive the rotation of bull stick, the bull stick is along controlling the inside rotation of axle, can not drive the rotation of controlling the axle, the security is very high.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a double-flange butterfly valve with a protection structure according to the present invention;

FIG. 2 is a schematic view of a valve plate connection structure of a double-flange butterfly valve with a protection structure according to the present invention;

fig. 3 is an enlarged view of a portion a of fig. 1 of a double-flange butterfly valve with a protective structure according to the present invention.

In the figure: 1. a butterfly valve body; 2. a steering shaft; 3. a rotating rod; 4. a groove; 5. a handle; 6. a support plate; 7. an electric push rod; 8. a bump; 9. a valve plate; 10. a buffer assembly; 1001. a slide bar; 1002. a sliding sleeve; 1003. a top plate; 1004. a connecting plate; 1005. a connecting rod; 1006. a protection plate; 1007. a waterproof rubber block.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

As shown in fig. 1-3, a two flange butterfly valve with protective structure, including butterfly valve main part 1, the top of butterfly valve main part 1 is installed and is controlled axle 2 and control the inside rotation of axle 2 and connect bull stick 3, recess 4 has been seted up to the inside of bull stick 3, fixedly connected with backup pad 6 and the fixed surface of backup pad 6 install electric putter 7 on the lateral wall of controlling axle 2, electric putter 7's top fixedly connected with lug 8, the surface mounting who controls axle 2's bottom and install valve plate 9 and valve plate 9 has buffer unit 10, buffer unit 10 includes slide bar 1001, sliding sleeve 1002, roof 1003, connecting plate 1004, connecting rod 1005, guard plate 1006 and waterproof rubber piece 1007.

The valve plate comprises a valve plate 9, a sliding rod 1001, a sliding sleeve 1002, a top plate 1003, a connecting plate 1004, a connecting plate 1005 and a protection plate 1006, wherein the sliding rod 1001 is fixedly connected to the upper side and the lower side of the valve plate 9, the sliding sleeve 1002 is connected to the outer side wall of the sliding rod 1001 in a sliding mode, the top end of the sliding rod 1001 is fixedly connected with the top plate 1003, the connecting plate 1004 is fixedly connected between the sliding sleeves 1002, and the left end of the connecting plate 1004 is fixedly connected with the connecting rod 1005 and the left end of the connecting rod 1005 is fixedly connected with the protection plate 1006.

Wherein, fixed mounting has waterproof rubber piece 1007 between the right side end of connecting plate 1004 and the surface of valve plate 9, and waterproof rubber piece 1007 has fine elasticity, can be fine cushion.

Wherein, the top fixedly connected with handle 5 of bull stick 3, handle 5 conveniently rotates bull stick 3.

Wherein, the power output end of the electric push rod 7 is connected with the power input end of the lug 8, and the electric push rod 7 drives the lug 8 to move back and forth.

It should be noted that, the utility model is a double-flange butterfly valve with a protection structure, when water flow impacts the valve plate 9, most of the middle water flow impacts the protection plate 1006 at first, the protection plate 1006 starts to move to the valve plate 9, the protection plate 1006 drives the connection plate 1004 to move to the valve plate 9, the connection plate 1004 drives the sliding sleeve 1002 to move to the valve plate 9, the sliding sleeve 1002 moves to the valve plate 9 along the sliding rod 1001, so as to extrude the waterproof rubber block 1007, the waterproof rubber block 1007 plays a certain buffering role by using the elasticity of rubber, so as to reduce the force applied, thus protecting the valve plate 9, preventing the valve plate 9 from being damaged, when the handle 5 is used to control the opening and closing of the butterfly valve main body 1, the rotating rod 3 is rotated to the same horizontal position of the groove 4 and the lug 8 (the groove 4 is slightly larger than the lug 8), then the built-in battery power supply is provided to the electric push rod 7, extension through controller control electric putter 7 on electric putter 7, electric putter 7 inserts lug 8 in recess 4, like this also can drive the rotation of controlling axle 2 when rotating bull stick 3 through handle 5, thereby drive the rotation of valve plate 9, can accomplish the switch of butterfly valve main part 1 (butterfly valve main part 1 is the double flange butterfly valve), when not needing to control butterfly valve main part 1, only need the shortening of controller control electric putter 7 on electric putter 7, thereby extract lug 8 from recess 4, like this when rotating handle 5, handle 5 only can drive the rotation of bull stick 3, bull stick 3 is along controlling the inside rotation of axle 2, can not drive the rotation of controlling axle 2, the security is very high.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A double-flange butterfly valve with a protective structure comprises a butterfly valve main body (1) and is characterized in that, the top end of the butterfly valve main body (1) is provided with a control shaft (2), the interior of the control shaft (2) is rotatably connected with a rotating rod (3), a groove (4) is formed in the rotating rod (3), a supporting plate (6) is fixedly connected to the outer side wall of the control shaft (2), an electric push rod (7) is fixedly arranged on the surface of the supporting plate (6), the top end of the electric push rod (7) is fixedly connected with a convex block (8), the bottom end of the control shaft (2) is provided with a valve plate (9), the surface of the valve plate (9) is provided with a buffer component (10), the buffer assembly (10) comprises a sliding rod (1001), a sliding sleeve (1002), a top plate (1003), a connecting plate (1004), a connecting rod (1005), a protection plate (1006) and a waterproof rubber block (1007).

2. A double-flange butterfly valve with a protective structure according to claim 1, wherein: the equal fixedly connected with slide bar (1001) in upper and lower both sides of valve plate (9), sliding connection has sliding sleeve (1002) on slide bar (1001) lateral wall, the top fixedly connected with roof (1003) of slide bar (1001), fixedly connected with connecting plate (1004) between sliding sleeve (1002), the left side fixedly connected with guard plate (1006) of connecting rod (1005) and connecting rod (1005) of left side fixedly connected with connecting plate (1004).

3. A double-flange butterfly valve with a protective structure according to claim 1, wherein: and a waterproof rubber block (1007) is fixedly arranged between the right side end of the connecting plate (1004) and the surface of the valve plate (9).

4. A double-flange butterfly valve with a protective structure according to claim 1, wherein: the top end of the rotating rod (3) is fixedly connected with a handle (5).

5. A double-flange butterfly valve with a protective structure according to claim 1, wherein: and the power output end of the electric push rod (7) is connected with the power input end of the lug (8).