CN217951260U

CN217951260U - Butterfly valve with good sealing performance

Info

Publication number: CN217951260U
Application number: CN202222195474.9U
Authority: CN
Inventors: 郎基豪; 陈太东; 强美蓉; 郭培生; 范广成
Original assignee: Shanghai Yongtai Valve Co ltd
Current assignee: Shanghai Yongtai Valve Co ltd
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2022-12-02
Anticipated expiration: 2032-08-22

Abstract

The application relates to the field of butterfly valves and discloses a butterfly valve with good sealing performance. In this application, one side fixedly connected with top cap of valve body, one side fixedly connected with bottom of top cap is kept away from to the valve body, one side fixedly connected with bearing of valve body is kept away from to the top cap, the center of bearing is rotated and is connected with the transfer line, the one end fixedly connected with driving gear of transfer line, the waterproof ring of fixedly connected with between valve body inner wall top cap and the bottom, the dry box of one side fixedly connected with of switch handle is kept away from to the top cap, one side meshing of driving gear is connected with driven gear, one side fixedly connected with pole of driven gear, driven gear's one end fixedly connected with valve block is kept away from to the valve rod, driven gear and the one side sliding connection who keeps away from the valve block have waterproof awl at the center of valve rod. When the valve is opened, the waterproof cone is tightly attached to the valve rod under the action of the pressure of water, so that the sealing performance of the butterfly valve is greatly improved.

Description

Butterfly valve with good sealing performance

Technical Field

The application belongs to the technical field of valve leakproofness, specifically is a butterfly valve that leakproofness is good.

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 with a closing member which is a disc and rotates around a valve shaft to open and close. 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.

The application patent of publication number CN103498944A discloses a butterfly valve used in an oil circulation cooling device of a traction transformer of an electric locomotive, which comprises a valve body, a plate, a rotating shaft, a shaft head cover, a sealing element and a sealing groove, wherein a flange face on one side of the valve body is of a structure with thick middle and thin edges, the other side of the valve body is of a plane structure, reinforcing ribs respectively extend out of the sealing groove in the upper direction, the lower direction, the left direction and the right direction, the upper end of the shaft head of the rotating shaft is processed into a hexagonal shape, the hexagonal part of the section close to the top end is processed into a half hexagonal shape, the shaft head cover is provided with a kidney-shaped counter bore, the bottom of the kidney-shaped counter bore is respectively provided with a counter bore corresponding to a transverse and longitudinal semicircular switch key, the counter bore can be sleeved on the half-shaped rotating shaft, and the shaft head cover is fastened on the valve body. Through the structural improvement, the shaft head cover locks the rotating shaft and the valve plate, and the operation safety and reliability of the butterfly valve are improved.

Its security of above-mentioned patent increases to some extent, but the butterfly valve is owing to rotated by the valve rod, and valve body and valve rod department have certain clearance, and there is certain wearing and tearing along with the increase of butterfly valve number of times of use to make valve body and valve rod clearance have the grow risk, will have the bad condition to the leakproofness of water and liquid, provide a good butterfly valve of leakproofness for this reason.

SUMMERY OF THE UTILITY MODEL

The purpose of this application lies in: in order to solve the problem that the sealing performance of the butterfly valve is poor, the butterfly valve with good sealing performance is provided.

The technical scheme adopted by the application is as follows: the utility model provides a butterfly valve that leakproofness is good, includes the valve body, one side fixedly connected with top cap of valve body, one side fixedly connected with bottom of top cap is kept away from to the valve body, one side fixedly connected with bearing of valve body is kept away from to the top cap, the center of bearing is rotated and is connected with the transfer line, the one end fixedly connected with driving gear of transfer line, the waterproof ring of fixedly connected with between valve body inner wall top cap and the bottom, one side fixedly connected with switch handle of keeping away from the driving gear of transfer line, one side meshing of driving gear is connected with driven gear, one side fixedly connected with valve rod of driven gear, driven gear's one end fixedly connected with valve block is kept away from to the valve rod, the logical mouth department sliding connection that is close to the top cap of the valve body of valve rod has a waterproof awl.

Through adopting above-mentioned technical scheme, one side fixedly connected with top cap of valve body, the top cap can be with valve rod seal, also the switch handle of easy to assemble simultaneously, one side fixedly connected with bottom that the top cap was kept away from to the valve body, the mode that its traditional rotation was screwed up can be replaced to the bottom to increase butterfly valve's leakproofness. The one side fixedly connected with bearing of valve body is kept away from to the top cap, makes things convenient for its switch handle's rotation, the center of bearing is rotated and is connected with the transfer line, and the one end fixedly connected with driving gear of transfer line utilizes rotary switch valve, reduces its operation degree of difficulty, the waterproof ring of fixedly connected with between valve body inner wall top cap and the bottom, the waterproof ring can be better prevent its rivers, switch handle's one side fixedly connected with drying box is kept away from to the top cap, has drier and sponge in the drying box, prevents that its gear from rustting under long-time. One side meshing of driving gear is connected with driven gear, makes the driving gear can drive its driven gear and begin to rotate, and reduces the wearing and tearing of gear, one side fixedly connected with valve rod of driven gear, driven gear drive its valve rod motion, driven gear's one end fixedly connected with valve block is kept away from to the valve rod, and driven gear drives its valve rod rotatory, makes its valve block rotatory to make the valve switch closed, driven gear is kept away from at the center of valve rod and one side sliding connection who keeps away from the valve block has waterproof awl, and waterproof awl makes waterproof awl tightly laminate the valve rod under the pressure effect of water when the valve is opened, thereby makes the leakproofness of butterfly valve improve greatly.

In a preferred embodiment, the valve rod is positioned between the driven gear and the first waterproof cone and fixedly connected with a plurality of first retaining rings, and the first retaining rings are slidably embedded on the valve body.

Through adopting above-mentioned technical scheme, have a plurality of rings that keep off on the valve rod, and every keeps off the effect that the ring all can play sealed butterfly valve, improves the leakproofness of its butterfly valve greatly.

In a preferred embodiment, a rubber plate is fixedly connected to one side of the valve plate, and a fixing plate is fixedly connected to one side of the rubber plate.

Through adopting above-mentioned technical scheme, the rubber slab stops that its rivers play certain sealed effect, and the fixed plate then fixes the rubber slab and plays fixed effect on the valve block.

In a preferred embodiment, the valve rod is fixedly connected between the valve plate and the bottom cover and is provided with a second retaining ring, and the valve rod is slidably connected with a second waterproof cone at a position, close to the through hole of the bottom cover, of the valve body.

Through adopting above-mentioned technical scheme, have a plurality of seconds on the bottom to keep off the ring, every second keeps off the ring and all can play the effect of sealed butterfly valve, and the waterproof awl of second prevents that rivers from flowing to the bottom when water passes through, improves the leakproofness of its butterfly valve greatly.

In a preferred embodiment, a sealing ring is fixedly installed on the periphery of the valve plate, and the diameter of the sealing ring is larger than that of the inner wall of the valve body.

Through adopting above-mentioned technical scheme, the sealing ring is fixed around the valve block, guarantees the leakproofness of valve block when playing the rotatory valve block, and its diameter slightly is greater than the valve body inner wall, makes it just can fix between two waterproof rings.

In a preferred embodiment, a switch handle is fixedly connected to one side of the transmission rod, which is far away from the driving gear, and the diameter of the switch handle is larger than that of the driven gear.

Through adopting above-mentioned technical scheme, rotate the switch handle to make its valve open or close, the switch handle diameter is greater than driven gear and driving gear diameter is less than driven gear, reduces the operation degree of difficulty of its valve.

In conclusion, due to the adoption of the technical scheme, the beneficial effects of the application are as follows:

in this application, when the valve is opened to needs, begin to rotate the switch handle, the switch handle drives the transfer line and rotates, thereby make the driving gear begin to rotate, driven gear begins to rotate under the drive of driving gear, make its valve rod begin to rotate, the valve block is under the rotation of valve rod, begin to rotate, make its valve block not blocking rivers, when the rivers are through, under the water pressure effect, water begins to flow to the top cap, firmly laminate the valve rod under the pressure effect of water with the waterproof awl of second when first waterproof awl, and first waterproof awl is inseparabler with the waterproof awl of second just laminating under the big circumstances of water pressure, thereby the leakproofness of butterfly valve has been promoted greatly.

Drawings

FIG. 1 is a schematic view of a butterfly valve of the present application;

FIG. 2 is a schematic structural view of the butterfly valve of the present application when closed;

FIG. 3 is a schematic diagram of the operation of the butterfly valve of the present application;

the mark in the figure is: 1. a valve body; 2. a valve plate; 3. a seal ring; 4. a first waterproof cone; 5. a first retainer ring; 6. a valve stem; 7. a driven gear; 8. a driving gear; 9. a transmission rod; 10. a switch handle; 11. a bearing; 12. a top cover; 13. drying the box; 14. a bottom cover; 15. a waterproof ring; 16. a rubber plate; 17. a fixing plate; 18. a second retainer ring; 19. and a second waterproof cone.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The present application is described in detail below with reference to figures 1-3:

example (b): the utility model provides a butterfly valve that leakproofness is good, including valve body 1, one side fixedly connected with top cap 12 of valve body 1, top cap 12 can be sealed with valve rod 6, one side fixedly connected with bottom 14 of top cap 12 is kept away from to valve body 1, one side fixedly connected with bearing 11 of valve body 1 is kept away from to top cap 12, make things convenient for its switch handle 10's rotation, bearing 11's center is rotated and is connected with transfer line 9, transfer line 9's one end fixedly connected with driving gear 8, utilize rotary switch valve, reduce its operation degree of difficulty, fixedly connected with waterproof ring 15 between 1 inner wall top cap 12 of valve body and the bottom 14, waterproof ring 15 can be better prevent its rivers, one side fixedly connected with drying box 13 of switch handle 10 is kept away from to top cap 12, there are drier and sponge in drying box 13, prevent that its gear from rustting under long-time.

Referring to fig. 1-3, one side of the driving gear 8 is engaged with the driven gear 7, so that the driving gear 8 can drive the driven gear 7 to start rotating and reduce the abrasion of the gear, one side of the driven gear 7 is fixedly connected with the valve rod 6, the driven gear 7 drives the valve rod 6 to move, one end of the valve rod 6, far away from the driven gear 7, is fixedly connected with the valve plate 2, the driven gear 7 drives the valve rod 6 to rotate, so that the valve plate 2 rotates, so that the valve switch is closed, the through hole of the valve body 1, close to the top cover 12, of the valve rod 6 is slidably connected with the first waterproof cone 4, and when the valve is opened, the first waterproof cone 4 tightly adheres to the valve rod under the pressure of water, so that the sealing performance of the butterfly valve is greatly improved.

Referring to fig. 1, driven gear 7 is kept away from and the first ring 5 that keeps off of one side fixedly connected with of first waterproof awl 4 is kept away from to valve rod 6, has a plurality of first ring 5 that keep off on the valve rod, and every first ring 5 that keeps off can all play the effect of sealed butterfly valve, improves the leakproofness of its butterfly valve greatly.

Referring to fig. 1-2, one side of the valve plate 2 is fixedly connected with a rubber plate 16, one side of the rubber plate 16 is fixedly connected with a fixing plate 17, the rubber plate 16 blocks water flow to play a certain sealing role, and the fixing plate 17 fixes the rubber plate 16 on the valve plate 2 to play a fixing role.

Referring to fig. 1, the valve rod 6 is located between the valve plate 2 and the bottom cover 14 and is fixedly connected with a second retaining ring 18, the valve rod 6 is located at a through hole of the valve body 1 close to the bottom cover 14 and is connected with a second waterproof cone 19 in a sliding mode, the bottom cover 14 is provided with a plurality of second retaining rings 18, each second retaining ring 18 can play a role in sealing a butterfly valve, and when water passes through the second waterproof cone 19, the water is prevented from flowing to the bottom cover 14, and the sealing performance of the butterfly valve is greatly improved.

Referring to fig. 1-3, the periphery of the valve plate 2 is fixedly provided with a sealing ring 3, the diameter of the sealing ring 3 is larger than that of the inner wall of the valve body 1, the sealing ring 3 is fixed around the valve plate 2, the sealing performance of the valve plate 2 is ensured when the valve plate 2 is rotated, and the diameter of the sealing ring is slightly larger than that of the inner wall of the valve body 1, so that the sealing ring can be just fixed between the two waterproof rings 15.

Referring to fig. 1, a drying box 13 is fixedly connected to a side of the top cover 12 away from the switch handle 10, and a drying agent is contained in the drying box 13, and the drying box 13 keeps the gear engagement part dry and prevents the top cover 12 and the internal parts thereof from rusting.

The application principle of the butterfly valve embodiment that leakproofness is good is: when the valve needs to be opened, the switch handle 10 starts to rotate, the switch handle 10 drives the transmission rod 9 to rotate, so that the driving gear 8 starts to rotate, the driven gear 7 starts to rotate under the driving of the driving gear 8, the valve rod 6 starts to rotate, the valve block 2 starts to rotate under the rotation of the valve rod 6, the valve block 2 does not block water flow, when the water flow passes, the water starts to flow to the top cover 12 under the action of water pressure, when the first waterproof cone 4 and the second waterproof cone 19 are firmly attached to the valve rod 6 under the action of the water pressure, and the first waterproof cone 4 and the second waterproof cone 19 are attached to each other more tightly under the condition that the water pressure is higher, so that the sealing performance of the butterfly valve is greatly improved.

The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. The utility model provides a butterfly valve that leakproofness is good, includes valve body (1), its characterized in that: one side fixedly connected with top cap (12) of valve body (1), one side fixedly connected with bottom (14) of top cap (12) are kept away from in valve body (1), one side fixedly connected with bearing (11) of valve body (1) are kept away from in top cap (12), the center of bearing (11) is rotated and is connected with transfer line (9), the one end fixedly connected with driving gear (8) of transfer line (9), fixedly connected with waterproof ring (15) between valve body (1) inner wall top cap (12) and bottom (14), one side fixedly connected with switch handle (10) of keeping away from driving gear (8) of transfer line (9), one side meshing of driving gear (8) is connected with driven gear (7), one side fixedly connected with valve rod (6) of driven gear (7), the one end fixedly connected with valve block (2) of driven gear (7) are kept away from in valve rod (6), the through-hole department sliding connection that is close to top cap (12) of valve body (1) that is located of valve rod (6) has first waterproof awl (4).

2. The butterfly valve with good sealing performance according to claim 1, wherein: the valve rod (6) is located between the driven gear (7) and the first waterproof cone (4) and fixedly connected with a plurality of first retaining rings (5), and the first retaining rings (5) are slidably embedded on the valve body (1).

3. The butterfly valve with good sealing performance according to claim 1, wherein: one side fixedly connected with rubber slab (16) of valve block (2), one side fixedly connected with fixed plate (17) of rubber slab (16).

4. The butterfly valve with good sealing performance according to claim 1, wherein: the valve rod (6) is located fixedly connected with second retaining ring (18) between valve block (2) and bottom (14), through hole department sliding connection that valve rod (6) are located valve body (1) and are close to bottom (14) has second waterproof awl (19).

5. The butterfly valve with good sealing performance according to claim 1, wherein: fixed mounting all around of valve block (2) has sealing ring (3), sealing ring (3) diameter is greater than valve body (1) inner wall diameter.

6. The butterfly valve with good sealing performance according to claim 1, wherein: one side of the top cover (12) far away from the switch handle (10) is fixedly connected with a drying box (13), and a drying agent is arranged in the drying box (13).

7. The butterfly valve with good sealing performance according to claim 1, wherein: the waterproof ring (15) is embedded in the inner wall of the valve body (1) in a sliding mode, and the outer diameter of the waterproof ring is larger than that of the inner wall of the valve body (1).

8. The butterfly valve with good sealing performance according to claim 1, wherein: the valve body (1) is made of an anticorrosive material, and anticorrosive paint is coated on the surface of the valve body (1).