CN213206597U

CN213206597U - Handle butt-clamping butterfly valve

Info

Publication number: CN213206597U
Application number: CN202022071302.1U
Authority: CN
Inventors: 吴晓川
Original assignee: Tianjin Amu Fluid Equipment Manufacturing Co ltd
Current assignee: Tianjin Amu Fluid Equipment Manufacturing Co ltd
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-05-14
Anticipated expiration: 2030-09-21

Abstract

The utility model discloses a handle butt clamp butterfly valve, including the valve body, the inboard middle part of valve body is provided with the butterfly plate through the pivot activity, butterfly plate outside surface is provided with sealing mechanism, sealing mechanism includes sealing washer, spout, slider, extrusion piece, first telescopic link, atress board, transfer line, butterfly plate outside surface is fixed cover all around and is equipped with the sealing washer, a plurality of spouts have evenly been seted up to butterfly plate outside surface four corners department, the inside activity block of spout is provided with the slider, the fixed extrusion piece that is provided with in slider upper end, butterfly plate surface middle part is fixed and is provided with first telescopic link, the fixed atress board that is provided with in first telescopic link upper end, atress board outside surface is provided with a plurality of transfer lines through the even activity of pivot all around. The utility model discloses result of use can further strengthen the sealed effect of device through water pressure after the valve is closed to can prevent effectively that the emergence from leaking between valve body and the closed butterfly plate.

Description

Handle butt-clamping butterfly valve

Technical Field

The utility model relates to the technical field of valves, specifically be a handle butt clamp butterfly valve.

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.

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.

However, when the butterfly valve is used, a further sealing device with the inner side wall of the valve is lacked after the butterfly plate is sealed in a rotating manner, so that water leakage is easily caused at the joint between the edge of the butterfly plate and the inner side wall of the valve.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a handle is to pressing from both sides butterfly valve to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a handle butt-clamping butterfly valve comprises a valve body, wherein a butterfly plate is movably arranged in the middle of the inner side of the valve body through a rotating shaft, the outer side surface of the butterfly plate is provided with a sealing mechanism which comprises a sealing ring, a chute, a slide block, an extrusion block, a first telescopic rod, a stress plate and a transmission rod, the periphery of the outer side surface of the butterfly plate is fixedly sleeved with a sealing ring, the four corners of the outer side surface of the butterfly plate are uniformly provided with a plurality of sliding chutes, a slide block is movably clamped in the chute, an extrusion block is fixedly arranged at the upper end of the slide block, a first telescopic rod is fixedly arranged in the middle of the surface of the butterfly plate, a stress plate is fixedly arranged at the upper end of the first telescopic rod, the outer side surface of the stress plate is uniformly and movably provided with a plurality of transmission rods through a rotating shaft, one end of each transmission rod, close to the corresponding extrusion block, is movably connected with the corresponding extrusion block through the rotating shaft, and a handle is fixedly arranged at the upper end of the rotating shaft where the butterfly plate is located.

Preferably, the outer side surface of the valve body is fixedly provided with a connecting flange, and the valve body can be conveniently connected with a pipeline externally through the connecting flange.

Preferably, the cross section of the extrusion block is arc-shaped, and the sealing ring can be conveniently attached to the extrusion block through the arc-shaped extrusion block, so that the sealing ring can be conveniently and closely attached to the inner side wall of the valve body.

Preferably, a side surface four corners department that the dish board was kept away from to the atress board all fixes and is provided with the second telescopic link, the fixed buffer board that is provided with of one end that the atress board was kept away from to the second telescopic link, when the valve body was closed, the water hammer effect can be produced by the intercepted rivers suddenly, and the water pressure that the water hammer effect produced this moment can strike buffer board and second telescopic link, so through the second telescopic link that can stretch out and draw back, can play the effect of buffering and energy-absorbing, so can reduce the impact force of water pressure to the valve body, thereby can play the effect of protection valve and pipeline.

Preferably, the spring is arranged in the second telescopic rod, and the spring can be matched with the second telescopic rod and the buffer board to play a role in buffering and absorbing energy.

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

1. the utility model discloses rivers also tend to steady back after the valve body is closed, thereby water pressure can extrude the atress board and make the atress board remove to the direction that is close to the butterfly plate, so can promote the extrusion piece through the transfer line and keep away from each other and open, so can be through extrusion piece extrusion sealing washer to make sealing washer and the inboard lateral wall of valve body further closely laminate, thereby can further strengthen the sealed effect of device through water pressure, thereby can prevent effectively that the emergence from leaking between valve body and the closed butterfly plate.

2. The utility model discloses when the valve body was closed, the water hammer effect can be produced by the rivers of truncation suddenly, and the water pressure that the water hammer effect produced this moment can strike buffer board and second telescopic link, so through second telescopic link and the spring that can stretch out and draw back, can play the effect of buffering and energy-absorbing, so can reduce the impact force of water pressure to the valve body to can play the effect of protection valve and pipeline.

Drawings

FIG. 1 is a schematic view of the overall structure of a handle butt-clamping butterfly valve of the present invention;

FIG. 2 is a view of the overall structure of a handle butt-clamping butterfly valve sealing mechanism of the present invention;

fig. 3 is an enlarged view of a portion a in fig. 2 of the handle-to-clip butterfly valve of the present invention.

In the figure: 1. a valve body; 2. a butterfly plate; 3. a seal ring; 4. a chute; 5. a slider; 6. extruding the block; 7. a first telescopic rod; 8. a stress plate; 9. a transmission rod; 10. a handle; 11. a connecting flange; 12. a second telescopic rod; 13. a buffer plate.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a handle butt-clamping butterfly valve comprises a valve body 1, wherein a butterfly plate 2 is movably arranged in the middle of the inner side of the valve body 1 through a rotating shaft, a sealing mechanism is arranged on the surface of the outer side of the butterfly plate 2 and comprises a sealing ring 3, sliding grooves 4, a sliding block 5, an extrusion block 6, a first telescopic rod 7, a stress plate 8 and a transmission rod 9, the sealing ring 3 is fixedly sleeved on the periphery of the surface of the outer side of the butterfly plate 2, the sliding grooves 4 are uniformly formed in the four corners of the surface of the outer side of the butterfly plate 2, the sliding block 5 is movably clamped in the sliding grooves 4, the extrusion block 6 is fixedly arranged at the upper end of the sliding block 5, the first telescopic rod 7 is fixedly arranged in the middle of the surface of the butterfly plate 2, the stress plate 8 is fixedly arranged at the upper end of the first telescopic rod 7, a plurality of transmission rods 9 are uniformly and movably arranged on the periphery of the surface of the, the upper end of the rotating shaft where the butterfly plate 2 is located is fixedly provided with a handle 10.

The outer side surface of the valve body 1 is fixedly provided with a connecting flange 11, the connecting flange 11 can facilitate the external connection of the valve body 1 with a pipeline, the cross section of the extrusion block 6 is arc-shaped, the sealing ring 3 can be conveniently attached through the arc-shaped extrusion block 6, so that the sealing ring 3 can be conveniently extruded to be tightly attached to the inner side wall of the valve body 1, the four corners of one side surface of the stress plate 8, which is far away from the disc plate, are fixedly provided with second telescopic rods 12, one end of the second telescopic rod 12, which is far away from the stress plate 8, is fixedly provided with a buffer plate 13, when the valve body 1 is closed, a water hammer effect can be generated by a water flow which is suddenly cut off, and the water pressure generated by the water hammer effect can impact the buffer plate 13 and the second telescopic rod 12, so that the functions of buffering and energy absorption can be achieved through the telescopic second telescopic rod 12, and the, therefore, the valve and the pipeline can be protected, the spring is arranged inside the second telescopic rod 12, and the spring can be matched with the second telescopic rod 12 and the buffer plate 13 to play a role in buffering and absorbing energy.

The working principle is as follows: when the device is used, the device can be externally connected with a pipeline through the connecting flange 11, when the valve body 1 is closed, suddenly cut water flow can generate a water hammer effect, the water pressure generated by the water hammer effect can impact the buffer plate 13 and the second telescopic rod 12, the telescopic second telescopic rod 12 and the spring can play roles of buffering and energy absorption, the impact force of the water pressure on the valve body 1 can be reduced, the valve and the pipeline can be protected, and after the valve body 1 is closed and the water flow tends to be stable, the water pressure can extrude the stress plate 8 to enable the stress plate 8 to move towards the direction close to the butterfly plate 2, the extrusion blocks 6 can be pushed to be away from each other through the transmission rod 9 to be opened, the sealing ring 3 can be extruded through the extrusion blocks 6, and the sealing ring 3 is further tightly attached to the inner side wall of the valve body 1, thereby can further strengthen the sealed effect of device through water pressure to can prevent effectively that the emergence from leaking between valve body 1 and the closed butterfly plate 2, this is exactly the utility model relates to a handle is to pressing from both sides the theory of operation of butterfly valve.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a handle butt clamp butterfly valve, includes valve body (1), its characterized in that: the valve is characterized in that a butterfly plate (2) is movably arranged in the middle of the inner side of a valve body (1) through a rotating shaft, a sealing mechanism is arranged on the surface of the outer side of the butterfly plate (2) and comprises a sealing ring (3), sliding grooves (4), a sliding block (5), an extrusion block (6), a first telescopic rod (7), a stress plate (8) and a transmission rod (9), the sealing ring (3) is fixedly sleeved on the periphery of the surface of the outer side of the butterfly plate (2), the sliding grooves (4) are uniformly formed in the four corners of the surface of the outer side of the butterfly plate (2), the sliding block (5) is movably clamped in the sliding grooves (4), the extrusion block (6) is fixedly arranged at the upper end of the sliding block (5), the first telescopic rod (7) is fixedly arranged in the middle of the surface of the butterfly plate (2), the stress plate (8) is fixedly arranged at the upper end of the first telescopic, one end of the transmission rod (9) close to the extrusion block (6) is movably connected with the extrusion block (6) through a rotating shaft, and a handle (10) is fixedly arranged at the upper end of the rotating shaft where the butterfly plate (2) is located.

2. The handle butt-clamp butterfly valve of claim 1, wherein: and a connecting flange (11) is fixedly arranged on the outer side surface of the valve body (1).

3. The handle butt-clamp butterfly valve of claim 1, wherein: the cross section of the extrusion block (6) is arc-shaped.

4. The handle butt-clamp butterfly valve of claim 1, wherein: the dish board is kept away from in atress board (8) one side surface four corners department all fixedly is provided with second telescopic link (12), the one end that atress board (8) were kept away from in second telescopic link (12) is fixed and is provided with buffer board (13).

5. The handle butt-clamp butterfly valve of claim 4, wherein: and a spring is arranged in the second telescopic rod (12).