CN216447445U

CN216447445U - Buffer protection type high-sealing butterfly valve

Info

Publication number: CN216447445U
Application number: CN202122290799.0U
Authority: CN
Inventors: 孙东; 郭继华
Original assignee: Shanghai Nuochen Energy Equipment Technology Co ltd
Current assignee: Shanghai Nuochen Energy Equipment Technology Co ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-05-06
Anticipated expiration: 2031-09-22

Abstract

The utility model discloses a buffer protection type high-sealing butterfly valve, which belongs to the technical field of valves and comprises a pull rod, wherein the left end of the pull rod is fixedly connected with the right side surface of a rotary table, the left side surface of the rotary table is fixedly connected with the right end of a rotary shaft, the left end of the rotary shaft is fixedly connected with the right side surface of a controller, the lower surface of the controller is in transmission connection with the top end of a valve rod, two upper connecting blocks are sleeved on the outer surface of the valve rod, two lower connecting blocks are sleeved on the outer surface of the valve rod, and the left side surfaces of the two upper connecting blocks are fixedly connected with the right side surface of the same first valve plate. This buffering protection formula high leakproofness butterfly valve through setting up valve rod, first valve plate and sealing washer, has made things convenient for to seal through this butterfly valve, has avoided the sealing performance of this butterfly valve to descend to made things convenient for the butterfly valve normal use, prevented simultaneously that the sealing washer that the cover was established on the valve plate from taking place to warp and reducing the leakproofness of butterfly valve, thereby prevented the life reduction of this butterfly valve.

Description

Buffer protection type high-sealing butterfly valve

Technical Field

The utility model belongs to the technical field of valves, and particularly relates to a buffer protection type high-sealing butterfly valve.

Background

The butterfly valve is a valve with a closing member (valve clack or butterfly plate) as a disc and capable of rotating around a valve shaft to open and close, mainly plays a role in cutting off and throttling on a pipeline, and the opening and closing member of the butterfly valve is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in a valve body, so that the opening and closing or adjusting purpose is achieved. The butterfly valve is applicable to the producer, coal gas, the natural gas, liquefied petroleum gas, city coal gas, cold and hot air, carry various corrosivity in engineering systems such as chemical industry smelting and electricity generation environmental protection, on the pipeline of non-corrosive fluid medium, a flow for adjusting and cutting the medium, current butterfly valve generally adopts rubber ring seal or metal ring seal, can lead to the sealing performance decline of butterfly valve after using for a long time, influence the normal use of butterfly valve, the butterfly plate is repeatedly opened and close, make the sealing washer of cover establishing on the butterfly plate warp easily, reduce the leakproofness of butterfly valve, reduce butterfly valve life.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects in the prior art, the utility model provides a buffer protection type butterfly valve with high sealing performance, and solves the problems that the sealing performance of the butterfly valve is reduced after long-time use and the normal use of the butterfly valve is influenced because the sealing performance of the butterfly valve is reduced because the conventional butterfly valve is generally sealed by a rubber ring or a metal ring, and the butterfly plate is repeatedly opened and closed, so that a sealing ring sleeved on the butterfly plate is easy to deform, the sealing performance of the butterfly valve is reduced, and the service life of the butterfly valve is shortened.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: a buffer protection type high-tightness butterfly valve comprises a pull rod, wherein the left end of the pull rod is fixedly connected with the right side face of a rotary table, the left side face of the rotary table is fixedly connected with the right end of a rotary shaft, the left end of the rotary shaft is fixedly connected with the right side face of a controller, the lower surface of the controller is in transmission connection with the top end of a valve rod, two upper connecting blocks are sleeved on the outer surface of the valve rod, two lower connecting blocks are sleeved on the outer surface of the valve rod, the left side faces of the two upper connecting blocks are fixedly connected with the right side face of the same first valve plate, the left side faces of the two lower connecting blocks are fixedly connected with the left side face of the same second valve plate, mounting grooves are formed in the outer surfaces of the first valve plate and the second valve plate, sealing rings are sleeved on the outer surfaces of the mounting grooves, the outer surfaces of the first valve plate and the second valve plate are mutually clamped with the inner wall of a valve body, through holes are formed in the inner wall of the valve body, and the left side surface and the right side surface of the valve body are respectively and fixedly connected with the opposite surfaces of the two flange plates.

As a further scheme of the utility model: the outer surface cover of valve rod is equipped with the lag.

As a further scheme of the utility model: the inner walls of the upper connecting block, the lower connecting block, the valve rod, the first valve plate and the second valve plate are all provided with threaded holes, the inner walls of the threaded holes are in threaded connection with the outer surface of a screw, and the outer surface of the screw is in threaded connection with the inner wall of a screw rod nut.

As a further scheme of the utility model: the surface cover of screw is equipped with the packing ring, the right flank of first valve plate passes through the left surface fixed connection of screw and second valve plate.

As a further scheme of the utility model: the outer surface cover of valve rod is equipped with the bearing, the bottom of valve rod and the mutual joint of the upper surface of supporting shoe.

As a further scheme of the utility model: the outer surface of the valve body is fixedly connected with the upper surface of the fixing block, the inner wall of the fixing block is provided with a limiting groove, and the lower surface of the inner wall of the limiting groove is fixedly connected with the bottom end of the spring.

As a further scheme of the utility model: the lower surface of the fixing block is provided with a water outlet, and the lower surface of the fixing block is clamped with the outer surface of the sealing plug through the water outlet.

(III) advantageous effects

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

1. the buffer protection type high-tightness butterfly valve comprises a valve rod, an upper connecting block, a lower connecting block, a first valve plate and a sealing ring, wherein after the valve plate is fixed, an operator rotates a pull rod to enable a rotary table to rotate, then the rotary shaft is driven to rotate, finally a controller is driven, the controller drives the valve rod to rotate after rotating, the valve rod drives a screw to rotate after rotating, then two upper connecting blocks and two lower connecting blocks are driven to rotate simultaneously, meanwhile, the first valve plate and the second valve plate on two sides of the two upper connecting blocks and the two lower connecting blocks do circular motion, when a water source in the valve body needs to be blocked, the two first valve plate and the second valve plate are rotated to be overlapped with a through hole, the sealing ring blocks the through hole and a gap between the first valve plate and the second valve plate, the through hole is blocked, when the water source needs to be discharged, the operator rotates the first valve plate and the second valve plate 180 degrees again, the butterfly valve has the advantages that the butterfly valve is convenient to seal, the sealing performance of the butterfly valve is prevented from being reduced, the butterfly valve is convenient to use normally, meanwhile, the sealing ring sleeved on the valve plate is prevented from deforming, the sealing performance of the butterfly valve is reduced, and the service life of the butterfly valve is prevented from being reduced.

2. This high leakproofness butterfly valve of buffer protection formula, through setting up the second valve plate, screw and second valve plate, operating personnel will go up the connecting block, lower connecting block, the valve rod, first valve plate and second valve plate all overlap in the top of valve rod, insert the connecting block after sheatheeing the packing ring with the screw afterwards, lower connecting block, the valve rod, the screw hole inside of first valve plate and second valve plate top, work as the connecting block, lower connecting block, the valve rod, first valve plate and second valve plate are fixed back with screw-nut's right-hand member, conveniently install this butterfly valve, thereby the work efficiency of this butterfly valve has been improved, simultaneously effectual stability that has improved first valve plate and second valve plate, thereby the effectual sealed effect that has improved this butterfly valve.

3. This high leakproofness butterfly valve of buffering protection formula, through setting up the supporting shoe, spacing groove and spring, when the inside pressure in water source is too big, the below of valve rod rotates in the supporting shoe top, the supporting shoe is at the inside spacing groove activity of fixed block afterwards, the spring of supporting shoe below slows the supporting shoe in the inside of fixed block afterwards, made things convenient for and slowed down vibrations at fluid flow in-process, avoided this butterfly valve because rock the damage that causes sealing performance, prevented simultaneously that the valve rod from receiving the damage because of vibrations, thereby the suitability of this butterfly valve has been improved.

Drawings

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

FIG. 2 is a three-dimensional structure diagram of the valve body of the present invention;

FIG. 3 is a schematic three-dimensional structure of the first valve plate of the present invention;

FIG. 4 is a schematic three-dimensional cross-sectional view of the fixing block according to the present invention;

in the figure: the device comprises a pull rod 1, a rotary table 2, a rotating shaft 3, a controller 4, a valve rod 5, a protective sleeve 6, an upper connecting block 7, a lower connecting block 8, a first valve plate 9, a second valve plate 10, an installation groove 11, a sealing ring 12, a threaded hole 13, a screw 14, a gasket 15, a lead screw nut 16, a bearing 17, a supporting block 18, a fixing block 19, a limiting groove 20, a spring 21, a water outlet 22, a sealing plug 23, a valve body 24, a through hole 25 and a flange 26.

Detailed Description

The technical solution of the present patent will be further described in detail with reference to the following embodiments.

As shown in fig. 1 to 4, the present invention provides a technical solution: a buffer protection type high-tightness butterfly valve comprises a pull rod 1, wherein the left end of the pull rod 1 is fixedly connected with the right side face of a rotary table 2, the left side face of the rotary table 2 is fixedly connected with the right end of a rotary shaft 3, the left end of the rotary shaft 3 is fixedly connected with the right side face of a controller 4, the lower surface of the controller 4 is in transmission connection with the top end of a valve rod 5, the outer surface of the valve rod 5 is sleeved with two upper connecting blocks 7, the outer surface of the valve rod 5 is sleeved with two lower connecting blocks 8, the left side faces of the two upper connecting blocks 7 are fixedly connected with the right side face of the same first valve plate 9, the left side faces of the two lower connecting blocks 8 are fixedly connected with the left side face of the same second valve plate 10, mounting grooves 11 are formed in the outer surfaces of the first valve plate 9 and the second valve plate 10, sealing rings 12 are sleeved on the outer surfaces of the mounting grooves 11, the outer surfaces of the first valve plate 9 and the second valve plate 10 are mutually clamped with the inner wall of a valve body 24, through-hole 25 has been seted up to the inner wall of valve body 24, the left surface and the right flank of valve body 24 respectively with the opposite face fixed connection of two ring flanges 26, made things convenient for and sealed through this butterfly valve, avoided the sealing performance of this butterfly valve to descend to made things convenient for butterfly valve normal use, prevented simultaneously that the sealing washer 12 that the cover was established on the valve plate from taking place to warp and reducing the leakproofness of butterfly valve, thereby prevented that the life of this butterfly valve from reducing.

Specifically, as shown in fig. 1, 2 and 3, the outer surface of the valve rod 5 is sleeved with the protective sleeve 6, the valve rod 5 is protected conveniently by arranging the protective sleeve 6, and the influence on the working efficiency of the butterfly valve caused by the influence of the outside on the valve rod 5 is avoided, the inner walls of the upper connecting block 7, the lower connecting block 8, the valve rod 5, the first valve plate 9 and the second valve plate 10 are all provided with threaded holes 13, the inner wall of each threaded hole 13 is in threaded connection with the outer surface of a screw 14, the outer surface of the screw 14 is in threaded connection with the inner wall of a screw nut 16, the butterfly valve is convenient to install by arranging the screw 14, so that the working efficiency of the butterfly valve is improved, meanwhile, the stability of the first valve plate 9 and the second valve plate 10 is improved effectively, so that the sealing effect of the butterfly valve is improved effectively, the outer surface of the screw 14 is sleeved with a gasket 15, the right side surface of the first valve plate 9 is fixedly connected with the left side surface of the second valve plate 10 by the screw 14, by arranging the gasket 15, the sealing of the first valve plate 9 and the second valve plate 10 is effectively improved, so that the sealing performance of the butterfly valve is improved.

Specifically, as shown in fig. 1, 2 and 4, a bearing 17 is sleeved on the outer surface of the valve rod 5, the bottom end of the valve rod 5 is clamped with the upper surface of the supporting block 18, the rotation efficiency of the valve rod 5 is effectively improved by arranging the bearing 17, the outer surface of the valve body 24 is fixedly connected with the upper surface of the fixing block 19, the inner wall of the fixing block 19 is provided with a limiting groove 20, the lower surface of the inner wall of the limiting groove 20 is fixedly connected with the bottom end of a spring 21, the spring 21 is arranged, so that the vibration is conveniently reduced in the fluid flowing process, the damage of the sealing performance of the butterfly valve caused by the shaking is avoided, meanwhile, the valve rod 5 is prevented from being damaged due to the shaking, the applicability of the butterfly valve is improved, the lower surface of the fixing block 19 is provided with a water outlet 22, the lower surface of the fixing block 19 is clamped with the outer surface of the butterfly valve 23 through the water outlet 22, the butterfly valve is convenient to clean.

The working principle of the utility model is as follows:

s1, before use, an operator sleeves the upper connecting block 7, the lower connecting block 8, the valve rod 5, the first valve plate 9 and the second valve plate 10 above the valve rod 5, then sleeves a screw 14 on a gasket 15 and inserts the screw into a threaded hole 13 above the upper connecting block 7, the lower connecting block 8, the valve rod 5, the first valve plate 9 and the second valve plate 10, and after the upper connecting block 7, the lower connecting block 8, the valve rod 5, the first valve plate 9 and the second valve plate 10 are fixed, the right end of the lead screw nut 16 is fixed;

s2, after the valve plate is fixed, the operator rotates the pull rod 1 to rotate the turntable 2, then drives the rotating shaft 3 to rotate, finally drives the controller 4, after the controller 4 rotates, the valve rod 5 rotates, after the valve rod 5 rotates, the screw 14 is driven to rotate, then the two upper connecting blocks 7 and the two lower connecting blocks 8 are driven to rotate simultaneously, at the same time, the first valve plates 9 and the second valve plates 10 on both sides of the two upper connecting blocks 7 and the two lower connecting blocks 8 do circular motion, when it is necessary to block the water supply inside the valve body 24, the two first valve plates 9 and the second valve plate 10 are rotated to coincide with the through holes 25, while the sealing ring 12 blocks the through hole 25 and the gap between the first valve plate 9 and the second valve plate 10, so as to block the through hole 25, when the water source needs to be discharged, the operator rotates the first valve plate 9 and the second valve plate 10 by 180 degrees again;

s3, when the pressure inside the water source is too high, the lower part of the valve rod 5 rotates above the supporting block 18, then the supporting block 18 moves in the limiting groove 20 inside the fixing block 19, and then the spring 21 below the supporting block 18 buffers the supporting block 18 inside the fixing block 19.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The utility model provides a high leakproofness butterfly valve of buffering protection formula, includes pull rod (1), its characterized in that: the left end of the pull rod (1) is fixedly connected with the right side face of the turntable (2), the left side face of the turntable (2) is fixedly connected with the right end of the rotating shaft (3), the left end of the rotating shaft (3) is fixedly connected with the right side face of the controller (4), the lower surface of the controller (4) is in transmission connection with the top end of the valve rod (5), two upper connecting blocks (7) are sleeved on the outer surface of the valve rod (5), two lower connecting blocks (8) are sleeved on the outer surface of the valve rod (5), the left side faces of the two upper connecting blocks (7) are fixedly connected with the right side face of the same first valve plate (9), the left side faces of the two lower connecting blocks (8) are fixedly connected with the left side face of the same second valve plate (10), mounting grooves (11) are formed in the outer surfaces of the first valve plate (9) and the second valve plate (10), and sealing rings (12) are sleeved on the outer surfaces of the mounting grooves (11), the surface of first valve plate (9) and second valve plate (10) and the mutual joint of inner wall of valve body (24), through-hole (25) have been seted up to the inner wall of valve body (24), the left surface and the right flank of valve body (24) respectively with the opposite face fixed connection of two ring flanges (26).

2. The buffer protection type high-tightness butterfly valve according to claim 1, characterized in that: the outer surface of the valve rod (5) is sleeved with a protective sleeve (6).

3. The buffer protection type high-tightness butterfly valve according to claim 1, characterized in that: go up connecting block (7), lower connecting block (8), valve rod (5), first valve plate (9) and second valve plate (10) the inner wall all seted up screw hole (13), the outer surface threaded connection of the inner wall of screw hole (13) and screw (14), the outer surface of screw (14) and the inner wall threaded connection of screw-nut (16).

4. The buffer protection type high-tightness butterfly valve according to claim 3, characterized in that: the surface cover of screw (14) is equipped with packing ring (15), the right flank of first valve plate (9) passes through the left surface fixed connection of screw (14) and second valve plate (10).

5. The buffer protection type high-tightness butterfly valve according to claim 1, characterized in that: the outer surface cover of valve rod (5) is equipped with bearing (17), the bottom of valve rod (5) and the mutual joint of upper surface of supporting shoe (18).

6. The buffer protection type high-tightness butterfly valve according to claim 1, characterized in that: the outer surface of valve body (24) is connected with the last fixed surface of fixed block (19), spacing groove (20) have been seted up to the inner wall of fixed block (19), the lower surface of spacing groove (20) inner wall and the bottom fixed connection of spring (21).

7. The buffer protection type high-tightness butterfly valve according to claim 6, characterized in that: the lower surface of the fixing block (19) is provided with a water outlet (22), and the lower surface of the fixing block (19) is mutually clamped with the outer surface of the sealing plug (23) through the water outlet (22).