CN217081446U

CN217081446U - Butterfly valve with shock-absorbing function

Info

Publication number: CN217081446U
Application number: CN202220272963.7U
Authority: CN
Inventors: 徐乃银; 章星; 曹正; 周悠翔
Original assignee: Lianggong Valve Group Co ltd
Current assignee: Lianggong Valve Group Co ltd
Priority date: 2022-02-10
Filing date: 2022-02-10
Publication date: 2022-07-29
Anticipated expiration: 2032-02-10

Abstract

The utility model discloses a butterfly valve with shock-absorbing function, including valve body, upper valve rod and lower valve rod, be equipped with the valve opening on the valve body, be equipped with the valve pocket in the valve body, be equipped with the butterfly plate in the valve pocket, butterfly plate upper end with upper valve rod lower extreme fixed connection, upper valve rod upper end passes the valve opening and drive arrangement fixed connection, butterfly plate lower extreme with lower valve rod upper fixed connection, lower valve rod lower extreme and lower end cover fixed connection, the butterfly plate comprises face one, face two, connecting portion and fixed muscle, the face of face one and face two towards the outside all is equipped with the fixed ring post, be equipped with the bradyseism board in the fixed ring post, be equipped with a plurality of bradyseism structures between bradyseism board and face one and the face two; the utility model discloses it is strong to have shock-absorbing function and sealing performance.

Description

Butterfly valve with shock-absorbing function

Technical Field

The utility model relates to a butterfly valve technical field, more specifically the butterfly valve with shock-absorbing function that says so relates to one kind.

Background

A butterfly valve, also called a flap valve, is a regulating valve with simple structure, can be used for the on-off control of a low-pressure pipeline medium, and is a valve, the closing part of which is a disc and rotates around a valve rod to open and close, and 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, and mainly plays a role in cutting off and throttling on a pipeline.

The existing butterfly valve has the following defects: 1. the butterfly plate part of the butterfly valve has no shock resistance, when the butterfly valve is closed, the butterfly plate is in positive impact with a circulating medium to generate huge impact force on the butterfly plate, and the rotary rod connected with the butterfly plate is abraded by impact shock after long-term impact on the front surface of the butterfly plate, even can deviate, so that the butterfly valve is damaged and leaked to cause loss, and the practicability of the butterfly valve is reduced; 2. when the butterfly valve is opened, the medium can impact the side of the butterfly plate, so that the sealing ring on the side surface of the butterfly plate is abraded, and the sealing performance of the butterfly valve is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a butterfly valve with shock-absorbing function, it is strong to have shock-absorbing function and sealing performance.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a butterfly valve with shock-absorbing function, includes the valve body, goes up valve stem and lower valve rod, be equipped with the valve opening on the valve body, be equipped with the valve pocket in the valve body, be equipped with the butterfly plate in the valve pocket, butterfly plate upper end with go up valve stem lower extreme fixed connection, it passes to go up the valve stem upper end valve opening and drive arrangement fixed connection, the butterfly plate lower extreme with fixed connection on the valve stem down, valve stem lower extreme and lower end cover fixed connection down, the butterfly plate comprises face one, face two, connecting portion and fixed muscle, face one with face two towards the outside all is equipped with the fixed ring post, be equipped with the bradyseism board in the fixed ring post, the bradyseism board with face one with be equipped with a plurality of bradyseism structures between the face two.

Technical scheme more than adopting, the utility model has the advantages of it is following:

the upper valve rod and the lower valve rod of the butterfly valve are arranged, so that the driving device can control the rotation of the butterfly plate, and the opening and the closing of the butterfly valve are realized; be equipped with the bradyseism board in the fixed ring post, the bradyseism board with face one with be equipped with a plurality of bradyseism structures between the two faces, the setting up of bradyseism board and bradyseism structure makes face one and face two all have the ability of shocking resistance, plays the effect that weakens the medium impact, reduces the butterfly plate vibrations for the butterfly plate is difficult for leaking the damage, and the inside all is equipped with the bradyseism structure and the bradyseism board makes the butterfly valve can install at will, also can realize two-way circulation, has strengthened the practicality of butterfly valve.

Furthermore, the first plate and the second plate are fixedly provided with the connecting parts at the upper and lower ends, and the first plate and the second plate are fixedly provided with the fixing ribs between the middle parts.

the utility model discloses connecting portion play the effect of fixed face one and face two, and fixed muscle plays the effect of strengthening face one and face two intensity, and in addition fixed muscle still has and makes when the butterfly plate is opened, and the medium flows through from the butterfly plate both ends except can also follow the circulation between the fixed muscle, has increaseed the volume of circulation, and has reduced the area of contact of medium and butterfly plate side, has reduced the impact for butterfly plate side sealing washer is difficult for receiving the damage, has prolonged the life of butterfly valve.

Further, the first plate surface and the second plate surface are both sleeved with sealing rings, embedded grooves are formed in the two sides in the valve body, and sealing structures are arranged in the embedded grooves.

the utility model discloses the protection to face one and two outer lanes of face had both been played in the setting of sealing washer, had strengthened face one again and two and seal strength of face.

Furthermore, seal structure comprises U type circle and high-elastic circle, U type intra-annular be equipped with high elastic circle, U type circle with the sealing washer offsets.

the utility model discloses it is sealed that U type circle plays the first layer, and when U type circle because long-term and sealing washer friction lead to wearing and tearing, the setting of high-elastic circle further produces external pressure to U type circle for U type circle offsets with the sealing washer all the time, has prolonged the sealed ageing of butterfly valve.

Furthermore, a packing groove is formed between the upper end of the upper valve rod and the valve body, sealing packing is arranged in the packing groove, two O-shaped rings are arranged at the lower end of the sealing packing, and a packing cover plate is fixedly arranged at the upper end of the packing groove.

the utility model discloses the enhancement of sealing filler has the leakproofness between last valve stem and the valve body, prevents that the medium from spilling from the gap between last valve stem and the valve body, and the setting of O type circle has further strengthened the leakproofness between last valve stem and the valve body.

Furthermore, a limiting groove is formed in one side, in contact with the middle of the upper valve rod, of the valve body, a limiting block is fixedly arranged at the position, relative to the limiting groove, of the upper valve rod, and the limiting block is clamped in the limiting groove.

the utility model discloses the setting of spacing groove and stopper plays and carries out spacing effect to last valve stem, prevents to go up the valve stem and deviates from.

Furthermore, the inner sides of the fixed ring columns are provided with sliding grooves, and the shock absorption board is arranged in the sliding grooves.

the utility model discloses the setting of spout for the bradyseism board can remove in the spout.

Furthermore, the cushioning structure comprises a cushioning post and a cushioning spring, two ends of the cushioning post are respectively fixedly connected with the first board surface and the cushioning board, the second board surface and the cushioning board, and the cushioning spring is sleeved outside the cushioning post.

the utility model discloses the slow shock post and the slow shock spring play the effect that weakens the impact, reduce the vibration sense, play the guard action to the butterfly plate.

Drawings

The present invention will be further explained with reference to the drawings and examples.

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

fig. 2 is an enlarged schematic view of the a position of the present invention.

Reference numerals: 1. a valve body; 101. an embedded groove is formed; 102. a limiting groove; 103. a packing groove; 2. an upper valve stem; 201. a limiting block; 3. sealing and filling; 4. an O-shaped ring; 5. fixing the ring column; 501. a chute; 6. a first plate surface; 7. a second board surface; 8. fixing the ribs; 9. a cushioning plate; 10. a connecting portion; 11. a lower valve stem; 12. a drive device; 13. a high elastic ring; 14. a U-shaped ring; 15. a seal ring; 16. a cushioning column; 17. a cushioning spring; 18. and (4) a filler cover plate.

Detailed Description

As shown in fig. 1, in a specific embodiment, a butterfly valve with a shock absorption function includes a valve body 1, an upper valve rod 2 and a lower valve rod 11, a valve hole is formed in the valve body 1, a valve cavity is formed in the valve body 1, a butterfly plate is arranged in the valve cavity, the upper end of the butterfly plate is fixedly connected with the lower end of the upper valve rod 2, the upper end of the upper valve rod 2 penetrates through the valve hole and is fixedly connected with a driving device 12, the lower end of the butterfly plate is fixedly connected with the lower valve rod 11, the lower end of the lower valve rod 11 is fixedly connected with a lower end cover, the butterfly plate is composed of a first plate surface 6, a second plate surface 7, a connecting portion 10 and fixing ribs 8, fixing ring columns 5 are arranged on the outward-facing surfaces of the first plate surface 6 and the second plate surface 7, shock absorption plates 9 are arranged in the fixing ring columns 5, and a plurality of shock absorption structures are arranged between the shock absorption plates 9 and the first plate surface 6 and the second plate surface 7; the upper end and the lower end between the first plate surface 6 and the second plate surface 7 are both fixedly provided with connecting parts 10, and a fixing rib 8 is fixedly arranged between the first plate surface 6 and the middle part of the second plate surface 7; a packing groove 103 is formed between the upper end of the upper valve rod 2 and the valve body 1, a sealing packing 3 is arranged in the packing groove 103, two O-shaped rings 4 are arranged at the lower end of the sealing packing 3, and a packing cover plate 18 is fixedly arranged at the upper end of the packing groove 103; one side of the valve body 1 contacting with the middle part of the upper valve rod 2 is provided with a limiting groove 102, a limiting block 201 is fixedly arranged at the position of the upper valve rod 2 relative to the limiting groove 102, and the limiting block 201 is clamped in the limiting groove 102.

Through the arrangement, the upper valve rod 2 and the lower valve rod 11 of the butterfly valve are arranged, so that the driving device 12 can control the rotation of the butterfly plate, and the butterfly valve is opened and closed; the utility model discloses be equipped with bradyseism board 9 in the fixed ring post 5, be equipped with a plurality of bradyseism structures between bradyseism board 9 and face one 6 and face two 7, the setting up of bradyseism board 9 and bradyseism structure makes face one 6 and face two 7 all have shock resistance, plays the effect that weakens the medium impact, reduces the butterfly plate vibrations, makes the butterfly plate difficult to leak and damage, and the inside all is equipped with bradyseism structure and bradyseism board 9 and makes the butterfly valve can install at will, also can realize two-way circulation, has strengthened the practicality of butterfly valve; the utility model discloses connecting portion 10 plays the effect of fixed face one 6 and face two 7, and fixed muscle 8 plays the effect of reinforcing face one 6 and face two 7 intensity, and in addition fixed muscle 8 still has and makes when the butterfly plate is opened, the medium can also circulate from between fixed muscle 8 except flowing through from the butterfly plate both ends, has strengthened the volume of circulating, and has reduced the area of contact of medium and butterfly plate side, has reduced the impact, makes butterfly plate side sealing washer 15 be difficult for receiving the damage, has prolonged the life of butterfly valve; the sealing packing 3 of the utility model strengthens the sealing property between the upper valve rod 2 and the valve body 1, prevents the medium from leaking out from the gap between the upper valve rod 2 and the valve body 1, and the O-shaped ring 4 further strengthens the sealing property between the upper valve rod 2 and the valve body 1; the utility model discloses the setting of spacing groove 102 and stopper 201 plays and carries out spacing effect to last valve rod 2, prevents to go up valve rod 2 and deviates from.

As shown in fig. 2, the first plate surface 6 and the second plate surface 7 are both externally sleeved with a sealing ring 15, the two sides in the valve body 1 are both provided with an embedded groove 101, and a sealing structure is arranged in the embedded groove 101; the sealing structure consists of a U-shaped ring 14 and a high elastic ring 13, the high elastic ring 13 is arranged in the U-shaped ring 14, and the U-shaped ring 14 abuts against a sealing ring 15; the inner sides of the fixed ring columns 5 are provided with sliding grooves 501, and the shock absorption plates 9 are clamped in the sliding grooves 501; the cushioning structure comprises a cushioning column 16 and a cushioning spring 17, wherein two ends of the cushioning column 16 are fixedly connected with the first plate surface 6 and the cushioning plate 9, the second plate surface 7 and the cushioning plate 9 respectively, and the cushioning spring 17 is sleeved outside the cushioning column 16.

Through the arrangement, the sealing ring 15 of the utility model not only protects the outer rings of the first plate surface 6 and the second plate surface 7, but also strengthens the first plate surface 6, the second plate surface 7 and the sealing strength; the U-shaped ring 14 of the utility model has the first layer of sealing, when the U-shaped ring 14 is abraded due to long-term friction with the sealing ring 15, the arrangement of the high elastic ring 13 further generates external pressure on the U-shaped ring 14, so that the U-shaped ring 14 always offsets against the sealing ring 15, and the sealing aging of the butterfly valve is prolonged; the sliding groove 501 of the utility model is arranged, so that the shock absorption plate 9 can move in the sliding groove 501; the utility model discloses 16 and the slow shake spring 17 of bradyseism post play the effect that weakens the impact, reduce the sense of shake, play the guard action to the butterfly plate.

The working principle is as follows:

the butterfly valve can be installed between pipelines in any direction, when the butterfly valve is opened, the upper valve rod 2 and the lower valve rod 11 are driven to rotate through the driving device 12, so that the butterfly plate rotates, media can flow through the two sides of the butterfly plate and between the fixing ribs 8, and impact on the side face of the butterfly plate is reduced; when closing the butterfly valve, drive upper valve rod 2 and lower valve rod 11 through drive arrangement 12 and rotate to make the butterfly plate rotate, the sealing washer 15 of butterfly plate offsets with U type circle 14 and forms sealedly, cuts the circulation of medium, and the medium strikes bradyseism board 9, and bradyseism post 16 and bradyseism spring 17 weaken the impact force, have reduced the vibrations of butterfly plate.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A butterfly valve with a damping function comprises a valve body (1), an upper valve rod (2) and a lower valve rod (11), and is characterized in that a valve hole is formed in the valve body (1), a valve cavity is formed in the valve body (1), a butterfly plate is arranged in the valve cavity, the upper end of the butterfly plate is fixedly connected with the lower end of the upper valve rod (2), the upper end of the upper valve rod (2) penetrates through the valve hole and is fixedly connected with a driving device (12), the lower end of the butterfly plate is fixedly connected with the lower valve rod (11), the lower end of the lower valve rod (11) is fixedly connected with a lower end cover, the butterfly plate is composed of a first plate surface (6), a second plate surface (7), a connecting portion (10) and a fixing rib (8), fixing ring columns (5) are arranged on the surfaces of the first plate surface (6) and the second plate surface (7) facing the outer side, and a damping plate (9) is arranged in the fixing ring columns (5), and a plurality of shock absorption structures are arranged between the shock absorption plate (9) and the first plate surface (6) and the second plate surface (7).

2. The butterfly valve with the shock absorption function according to claim 1, wherein the connecting portion (10) is fixedly arranged at each of upper and lower ends between the first plate surface (6) and the second plate surface (7), and the fixing rib (8) is fixedly arranged between the middle portions of the first plate surface (6) and the second plate surface (7).

3. The butterfly valve with the shock absorption function according to claim 2, wherein the first plate surface (6) and the second plate surface (7) are both externally sleeved with a sealing ring (15), the valve body (1) is provided with inner embedding grooves (101) on both inner sides, and the inner embedding grooves (101) are internally provided with sealing structures.

4. The butterfly valve with the shock absorption function according to claim 3, wherein the sealing structure is composed of a U-shaped ring (14) and a high elastic ring (13), the high elastic ring (13) is arranged in the U-shaped ring (14), and the U-shaped ring (14) abuts against the sealing ring (15).

5. The butterfly valve with the shock absorption function according to claim 1, wherein a packing groove (103) is formed between the upper end of the upper valve rod (2) and the valve body (1), a sealing packing (3) is arranged in the packing groove (103), two O-rings (4) are arranged at the lower end of the sealing packing (3), and a packing cover plate (18) is fixedly arranged at the upper end of the packing groove (103).

6. The butterfly valve with the shock absorption function according to claim 5, wherein a limiting groove (102) is formed in one side of the valve body (1) contacting with the middle of the upper valve rod (2), a limiting block (201) is fixedly arranged on the upper valve rod (2) relative to the limiting groove (102), and the limiting block (201) is clamped in the limiting groove (102).

7. The butterfly valve with the shock absorption function according to claim 1, wherein the fixing ring posts (5) are provided with sliding grooves (501) on the inner sides, and the shock absorption plates (9) are clamped in the sliding grooves (501).

8. The butterfly valve with the shock absorption function according to claim 7, wherein the shock absorption structure is composed of a shock absorption column (16) and a shock absorption spring (17), two ends of the shock absorption column (16) are fixedly connected with the first plate surface (6) and the shock absorption plate (9), the second plate surface (7) and the shock absorption plate (9), and the shock absorption spring (17) is sleeved outside the shock absorption column (16).