CN211059372U

CN211059372U - Leakage-proof butterfly valve

Info

Publication number: CN211059372U
Application number: CN201921944313.7U
Authority: CN
Inventors: 齐砚之
Original assignee: Tianjin Bohai Yongquan Valve Co ltd
Current assignee: Tianjin Bohai Yongquan Valve Co ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-07-21
Anticipated expiration: 2029-11-12

Abstract

The utility model discloses a butterfly valve of preventing leaking, which comprises a valve body, the internally mounted of valve body has valve plate and filter of vertical setting, the valve plate is located the right side of filter, the last lateral wall fixed mounting of valve plate has the rotating device who extends to the valve body outside, one side that the filter is close to the valve plate is rotated and is connected with first dwang, the one end that the filter was kept away from to first dwang is rotated and is connected with the second dwang, is located same water flat line fixedly connected with expanding spring, every between first dwang and the second dwang one side that the filter is relative is connected with buffer. The utility model discloses a handle rotates and drives the valve plate and rotate, and then drives the filter and rotate, filters impurity through the filter, prevents that the valve plate from getting into between valve plate and the valve body when rotating, causing the junction wearing and tearing, and then causing the leakage of valve body.

Description

Leakage-proof butterfly valve

Technical Field

The utility model relates to a butterfly valve technical field especially relates to a prevent butterfly valve of leakage.

Background

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.

When the butterfly valve is opened and closed, tiny impurities usually enter the joint of the valve plate and the valve body, and the friction of the impurities between the valve plate and the valve body for a long time causes the abrasion of the joint of the valve plate and the valve body, so that the leakage of the valve body is caused, and the butterfly valve cannot work normally.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem in the background art, and the butterfly valve of preventing leaking that provides.

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

the utility model provides a prevent butterfly valve of leakage, includes the valve body, the internally mounted of valve body has valve plate and filter of vertical setting, the valve plate is located the right side of filter, the last lateral wall fixed mounting of valve plate has the rotating device who extends to the valve body outside, one side that the filter is close to the valve plate is rotated and is connected with first dwang, the one end rotation that the filter was kept away from to first dwang is connected with the second dwang, is located same water flat line fixedly connected with expanding spring between first dwang and the second dwang, every one side that first dwang is relative with the filter is connected with buffer.

Preferably, the rotating device comprises a connecting rod fixedly mounted on the upper side wall of the valve plate, a cap is fixedly mounted at the upper end of the connecting rod, a cross rod is fixedly connected to one side of the cap, and a handle is fixedly mounted at one end, far away from the cap, of the cross rod.

Preferably, the buffering device comprises an ejector rod fixed on one side of the first rotating rod and a sleeve fixed on one side of the filter plate, one end, far away from the first rotating rod, of the ejector rod is located in the sleeve, and a buffering spring is fixedly installed between the inner bottom wall of the sleeve and the ejector rod located in the sleeve.

Preferably, the carrier rod and the sleeve are arranged in an arc.

Preferably, the outer walls of the first rotating rod and the second rotating rod are coated with paint.

Preferably, the valve plate and the filter plate are made of metal materials.

Compared with the prior art, this prevent butterfly valve of leakage's advantage lies in:

1. the valve plate is driven to rotate by rotating the handle, the second rotating rod is driven to rotate, the first rotating rod is driven to rotate by the telescopic spring, and then the filter plate is driven to rotate, impurities are filtered by the filter plate, and the situation that when the valve plate rotates, the impurities enter between the valve plate and the valve body to cause abrasion of a joint and further cause leakage of the valve body is prevented;

2. a buffer device is arranged between the first rotating rod and the filter plate, and is used for buffering, so that the first rotating rod is prevented from being in hard contact with the filter plate, the first rotating rod and the filter plate are prevented from being damaged due to the fact that the rotating speed of the handle is too high to drive the valve plate to rotate too fast, and the butterfly valve cannot work normally;

to sum up, the utility model discloses a handle rotates and drives the valve plate and rotate, and then drives the filter and rotate, filters impurity through the filter, prevents that the valve plate from when rotating, and impurity gets into between valve plate and the valve body, causes the junction wearing and tearing, and then causes the leakage of valve body.

Drawings

Fig. 1 is a schematic structural view of a leakage-proof butterfly valve according to the present invention;

fig. 2 is a top view of the connection between the valve plate and the filter plate in the leakproof butterfly valve of the present invention;

fig. 3 is an enlarged view of a portion a in fig. 2.

In the figure: 1 valve body, 2 valve plates, 3 filter plates, 4 first rotating rods, 5 second rotating rods, 6 telescopic springs, 7 connecting rods, 8 caps, 9 cross rods, 10 handles, 11 ejector rods, 12 sleeves and 13 buffer springs.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, a leakage-proof butterfly valve comprises a valve body 1, a valve plate 2 and a filter plate 3 which are vertically arranged are arranged inside the valve body 1, the valve plate 2 is positioned at the right side of the filter plate 3, specifically, the valve plate 2 and the filter plate 3 are made of metal materials, the rigidity of the valve plate 2 and the filter plate 3 made of metal materials is high, the deformation of the valve plate 2 and the filter plate 3 caused by overlarge pressure in the valve body 1 is avoided, and the butterfly valve can not work normally, the filter plate 3 filters impurities, so that the impurities can be prevented from entering between the valve plate 2 and the valve body 1 when the valve plate 2 rotates, the abrasion of a joint is caused, and the leakage of the valve body 1 is further caused, a rotating device which extends to the outside of the valve body 1 is fixedly arranged on the upper side wall of the valve plate 2, the rotating device comprises, one side fixedly connected with horizontal pole 9 of block 8, the one end fixed mounting that block 8 was kept away from to horizontal pole 9 has handle 10, rotates handle 10, and handle 10 rotates and drives horizontal pole 9 and rotate, and horizontal pole 9 rotates and drives block 8 and rotate, and block 8 rotates and drives connecting rod 7 and rotate, and connecting rod 7 rotates and drives valve plate 2 and rotate, and valve plate 2 rotates and then realizes opening and closing of butterfly valve.

One side of the filter plate 3 close to the valve plate 2 is rotatably connected with a first rotating rod 4, one end of the first rotating rod 4 far away from the filter plate 3 is rotatably connected with a second rotating rod 5, specifically, the outer walls of the first rotating rod 4 and the second rotating rod 5 are coated with paint, the service lives of the first rotating rod 4 coated with the paint and the second rotating rod 5 are longer, an expansion spring 6 is fixedly connected between the first rotating rod 4 and the second rotating rod 5 which are positioned on the same horizontal line, when the valve plate 2 is rotated and opened, one side of the valve plate 2 is close to the filter plate 3 to rotate, the other side of the valve plate 2 is far away from the filter plate 3 to rotate, the valve plate 2 is rotated to apply pressure to one of the second rotating rods 5, tension is applied to the other second rotating rod 5, the second rotating rod 5 which is subjected to the pressure is rotated to apply pressure to the expansion spring, the second rotating rod 5 which receives the tensile force rotates to apply the tensile force to the telescopic spring 6, the telescopic spring 6 expands to apply the tensile force to the first rotating rod 4, the two first rotating rods 4 rotate towards opposite directions, and the first rotating rod 4 rotates to drive the filter plate 3 to rotate along with the valve plate 2.

Each first rotating rod 4 is connected with a buffer device on one side opposite to the filter plate 3, the buffer device comprises an ejector rod 11 fixed on one side of the first rotating rod 4 and a sleeve 12 fixed on one side of the filter plate 3, specifically, the ejector rod 11 and the sleeve 12 are arranged in an arc shape, one end of the ejector rod 11 far away from the first rotating rod 4 is positioned inside the sleeve 12, a buffer spring 13 is fixedly arranged between the inner bottom wall of the sleeve 12 and the ejector rod 11 positioned inside the sleeve 12, further, one end of the ejector rod 11 close to the buffer spring 13 is always positioned inside the sleeve 12 and can not be separated from the sleeve 12, when the valve plate 2 is rotated to be opened and closed, the first rotating rod 4 is driven to rotate, the first rotating rod 4 rotates to drive the ejector rod 11 to rotate towards the inside of the sleeve 12, the buffer spring 13 buffers the ejector rod 11, and prevents the first rotating rod 4 from being in, the first rotating rod 4 and the filter plates 3 are damaged.

Further, unless otherwise specifically stated or limited, the above-described fixed connection is to be understood in a broad sense, and may be, for example, welded, glued, or integrally formed as is conventional in the art.

Now, the operation principle of the present invention is explained as follows:

rotate handle 10, handle 10 rotates and drives connecting rod 7 through horizontal pole 9 and rotate, connecting rod 7 rotates and drives valve plate 2 and rotate, valve plate 2 rotates and drives second dwang 5 and rotate, second dwang 5 rotates and drives first dwang 4 through expanding spring 6 and rotate, first dwang 4 rotates and drives filter 3 and rotate, realize that filter 3 rotates along with valve plate 2, filter 3 filters impurity, prevent valve plate 2 when rotating, impurity entering between valve plate 2 and the valve body 1, cause the junction wearing and tearing, and then cause the leakage of valve body 1.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a butterfly valve of preventing leaking, includes valve body (1), its characterized in that, the internally mounted of valve body (1) has valve plate (2) and filter (3) of vertical setting, valve plate (2) are located the right side of filter (3), the last side wall fixed mounting of valve plate (2) has the rotating device who extends to valve body (1) outside, one side rotation that filter (3) are close to valve plate (2) is connected with first dwang (4), the one end rotation that filter (3) were kept away from in first dwang (4) is connected with second dwang (5), is located same water flat line fixedly connected with expanding spring (6), every between first dwang (4) and second dwang (5) one side relative with filter (3) is connected with buffer.

2. A leakage-proof butterfly valve according to claim 1, wherein said rotation means comprises a connecting rod (7) fixedly mounted on the upper side wall of the valve plate (2), a cap (8) is fixedly mounted on the upper end of the connecting rod (7), a cross bar (9) is fixedly connected to one side of the cap (8), and a handle (10) is fixedly mounted on the end of the cross bar (9) away from the cap (8).

3. A leakage-proof butterfly valve according to claim 1, characterised in that the damping means comprises a push rod (11) fixed to one side of the first rotation rod (4) and a sleeve (12) fixed to one side of the filter plate (3), the end of the push rod (11) remote from the first rotation rod (4) being located inside the sleeve (12), and a damping spring (13) being fixedly mounted between the inner bottom wall of the sleeve (12) and the push rod (11) located inside the sleeve (12).

4. A leak resistant butterfly valve according to claim 3, characterised in that the carrier rod (11) and the sleeve (12) are arranged in an arc.

5. A leak resistant butterfly valve according to claim 1, characterised in that the outer walls of the first (4) and second (5) levers are painted.

6. A leak-proof butterfly valve according to claim 1, characterised in that the valve plate (2) and the filter plate (3) are made of a metal material.