CN212297654U

CN212297654U - Double-eccentric fluorine-lined flange butterfly valve

Info

Publication number: CN212297654U
Application number: CN202020458652.0U
Authority: CN
Inventors: 朱仲生
Original assignee: Anhui Jack Corrosion Resistant Pump Valve Co ltd
Current assignee: Anhui Jack Corrosion Resistant Pump Valve Co ltd
Priority date: 2020-04-01
Filing date: 2020-04-01
Publication date: 2021-01-05
Anticipated expiration: 2030-04-01

Abstract

The utility model provides a double eccentric lining fluorine flange butterfly valve, which comprises a valve body, a bracket, a rotating handle and a valve seat, wherein the valve seat is arranged at the middle position of the bottom of the valve body; the utility model discloses in, all seted up the constant head tank through the upper and lower both sides at the butterfly plate, and the constant head tank becomes T type structure, go up the valve rod simultaneously and all be connected with the constant head tank block with lower valve rod, adopt T type structure, can guarantee that the area of contact between valve rod and the butterfly plate is bigger, the inside of two constant head tanks all is provided with first rubber bump simultaneously, then can guarantee that the leakproofness between valve rod and the butterfly plate is higher, be provided with butterfly plate lining and valve body lining simultaneously between butterfly plate and valve body, the wholeness ability of lining fluorine butterfly valve has been improved greatly.

Description

Double-eccentric fluorine-lined flange butterfly valve

Technical Field

The utility model relates to a butterfly valve field especially relates to a two eccentric lining fluorine flange butterfly valves.

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.

But because the structure of current butterfly valve is comparatively complicated, packs at valve rod and valve body junction and packs and seal, nevertheless after long-time the use, packs and constantly wears out, makes sealed effect variation, and packs the process loaded down with trivial details, has seriously reduced the production efficiency of butterfly valve, and the corrosion resistance of current butterfly valve is not enough simultaneously, by the butterfly valve after the corruption, life will shorten greatly. Therefore, the utility model provides a double eccentric lining fluorine flange butterfly valve according to above-mentioned problem solves above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two eccentric lining fluorine flange butterfly valves to solve above-mentioned technical problem.

The utility model discloses a solve above-mentioned technical problem, adopt following technical scheme to realize: the utility model provides a two eccentric lining fluorine flange butterfly valves, includes valve body, support, rotation handle and disk seat, and wherein the disk seat setting is in the bottom intermediate position department of valve body, and there is rotation handle, its characterized in that at the top intermediate position department of valve body through the leg joint: the support comprises a first support and a second support, wherein the second support is arranged in the middle of the top of the valve body, the top of the second support is connected with the first support through a bolt rod, the top of the first support is movably connected with a rotating handle, and a limiting block is arranged on the top of the valve body and positioned on the outer side of the second support and used for limiting the position of the valve body;

the butterfly valve further comprises a butterfly plate positioned in the valve body, wherein an upper positioning groove is formed in the top of the butterfly plate, a lower positioning groove is formed in the bottom of the butterfly plate, and the upper positioning groove and the lower positioning groove are both formed in a vertical central vertical line of the butterfly plate;

still include the valve rod, go up the valve rod from the top down and run through the top of first support, second support and valve body in proper order and extend to the last constant head tank at butterfly plate top, the inside of going up the constant head tank and the outside that is located the valve rod are provided with a plurality of first rubber convex blocks, the inside of disk seat is provided with down the valve rod, and wherein in the lower valve rod runs through the bottom of valve body and extends to the lower constant head tank that the butterfly plate bottom was seted up, the inside of lower constant head tank and the outside that is located the lower valve rod also are provided with a plurality of first rubber convex blocks.

Preferably, last constant head tank is T type structure with constant head tank down, the bottom of going up the valve rod is T type structure, the top of valve rod is T type structure also down.

Preferably, the outside of going up the valve rod and being located the inside cladding of second support, first support and valve body upside have one deck to go up the sealing washer, wherein go up the outside of sealing washer and be located the inboard of first support and second support and be provided with a plurality of second rubber bumps, its a plurality of second rubber bumps and last sealing washer are laminated mutually.

Preferably, the outside of lower valve rod and the inside cladding that is located disk seat and valve body downside have one deck lower seal circle, and wherein the outside of lower seal circle and the inside that is located disk seat and valve body downside are provided with a plurality of third rubber bumps, and a plurality of third rubber bumps and lower seal circle laminate mutually.

Preferably, a butterfly plate lining is arranged inside the valve body and outside the butterfly plate.

Preferably, a valve body lining is arranged outside the butterfly plate and inside the valve body.

Preferably, the butterfly plate lining is attached to the valve body lining.

Compared with the prior art, the utility model provides a two eccentric lining fluorine flange butterfly valves have following beneficial effect:

the utility model provides a double eccentric fluorine lining flange butterfly valve, firstly, through setting up locating slots on the upper and lower sides of the butterfly plate, and the locating slots are T-shaped structures, and the upper valve stem and the lower valve stem are connected with the locating slots, adopting T-shaped structures, the contact area between the valve stem and the butterfly plate can be ensured to be larger, and at the same time, the inside of the two locating slots is provided with a first rubber bump, so that the sealing performance between the valve stem and the butterfly plate can be ensured to be higher, and at the same time, a butterfly plate lining and a valve body lining are arranged between the butterfly plate and the valve body, so that the corrosion resistance of the butterfly valve is remarkable, the overall performance of the fluorine lining butterfly valve is greatly improved, the butterfly valve is practical and simple, the sealing performance is good, the service life is long, and the butterfly valve is safe and reliable, secondly, the inside of the first bracket and the second bracket is provided with a second rubber bump, meanwhile, a third rubber bump is arranged inside the valve seat, a layer of lower sealing ring is sleeved outside the outer side of the lower valve rod and inside the valve seat, the rubber bump and the sealing ring are matched, the sealing performance of the rubber bump and the sealing ring is greatly increased, sealing between the valve rod and the support and between the valve rod and the valve seat is guaranteed, and the defect that the sealing effect is reduced due to the fact that the sealing ring is deformed for a long time can be effectively overcome.

Drawings

Fig. 1 is a schematic structural view of a double eccentric fluorine-lined flange butterfly valve of the present invention;

fig. 2 is a partial cross-sectional view of a double eccentric fluorine-lined flange butterfly valve of the present invention;

FIG. 3 is a schematic view of A-A of FIG. 2 according to the present invention;

FIG. 4 is a schematic view of the structure of B-B in FIG. 2 according to the present invention;

reference numerals: 1. rotating the handle; 2. a first bracket; 3. a second bracket; 4. a limiting block; 5. a valve body; 6. a valve body liner; 7. a butterfly plate liner; 8. a butterfly plate; 9. a valve seat; 10. an upper valve stem; 11. an upper positioning groove; 12. a first rubber bump; 13. a lower positioning groove; 14. a lower valve stem; 15. a second rubber bump; 16. an upper sealing ring; 17. a lower seal ring; 18. and a third rubber bump.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

In the specific implementation process, as shown in fig. 1-2, a double-eccentric fluorine-lined flange butterfly valve comprises a valve body 5, a support, a rotating handle 1 and a valve seat 9, wherein the valve seat 9 is arranged at the middle position of the bottom of the valve body 5, the middle position of the top of the valve body 5 is connected with the rotating handle 1 through the support, and the double-eccentric fluorine-lined flange butterfly valve is characterized in that: the support comprises a first support 2 and a second support 3, wherein the second support 3 is arranged in the middle of the top of the valve body 5, the top of the second support 3 is connected with the first support 2 through a bolt rod, the top of the first support 2 is movably connected with a rotating handle 1, and a limiting block 4 is arranged on the top of the valve body 5 and positioned on the outer side of the second support 3 and used for limiting the position of the valve body 5;

the butterfly valve further comprises a butterfly plate 8 positioned inside the valve body 5, an upper positioning groove 11 is formed in the top of the butterfly plate 8, a lower positioning groove 13 is formed in the bottom of the butterfly plate 8, and the upper positioning groove 11 and the lower positioning groove 13 are both formed in a vertical central vertical line of the butterfly plate 8;

still include valve rod 10, last valve rod 10 from the top down runs through first support 2 in proper order, the top of second support 3 and valve body 5 and extend to the last constant head tank 11 at butterfly plate 8 top, the inside of going up constant head tank 11 and the outside that is located valve rod 10 are provided with a plurality of first rubber bumps 12, the inside of disk seat 9 is provided with lower valve rod 14, wherein lower valve rod 14 runs through the bottom of valve body 5 and extends to the lower constant head tank 13 that butterfly plate 8 bottom was seted up in, the inside of lower constant head tank 13 and the outside that is located lower valve rod 14 also are provided with a plurality of first rubber bumps 12.

In the specific implementation process, as shown in fig. 2, the upper positioning groove 11 and the lower positioning groove 13 are both T-shaped structures, the bottom of the upper valve rod 10 is a T-shaped structure, and the top of the lower valve rod 14 is also a T-shaped structure.

In the specific implementation process, as shown in fig. 2-3, the outer side of the upper valve rod 10 and the inner sides of the second bracket 3, the first bracket 2 and the valve body 5 are coated with a layer of upper sealing ring 16, wherein a plurality of second rubber bumps 15 are arranged on the outer side of the upper sealing ring 16 and the inner sides of the first bracket 2 and the second bracket 3, and the plurality of second rubber bumps 15 are attached to the upper sealing ring 16.

In the specific implementation process, as shown in fig. 2 and 4, the outer side of the lower valve rod 14 and the inner portions of the lower sides of the valve seat 9 and the valve body 5 are wrapped with a layer of lower sealing ring 17, wherein a plurality of third rubber bumps 18 are arranged on the outer side of the lower sealing ring 17 and the inner portions of the lower sides of the valve seat 9 and the valve body 5, and the plurality of third rubber bumps 18 are attached to the lower sealing ring 17.

In the specific implementation, as shown in fig. 1-2, a butterfly plate liner 7 is provided inside the valve body 5 and outside the butterfly plate 8.

In the specific implementation process, as shown in fig. 1-2, a valve body lining 6 is arranged outside the butterfly plate 8 and inside the valve body 5; the butterfly plate lining 7 is attached to the valve body lining 6.

The working principle of the utility model is as follows: when the utility model is used, firstly, the butterfly plate 8 can be driven to rotate by rotating the rotating handle 1 through the upper valve rod 10, meanwhile, the rotation of the butterfly plate 8 drives the lower valve rod 14 to rotate at the bottom of the valve seat 9, thereby playing the role of limiting driving, in the process that the upper valve rod and the lower valve rod drive the butterfly plate 8 to rotate, the butterfly plate lining 7 at the outer side of the butterfly plate 8 is fully contacted and jointed with the valve body lining 6 at the inner side of the valve body 5, meanwhile, the upper sealing ring 16 on the outer side of the upper valve rod 10 rotates on the inner side of the second rubber bump 15 and is jointed with the second rubber bump 15, thereby increasing the sealability between the upper valve stem 10 and the first bracket 3 and the first bracket 2 and the valve body 5, meanwhile, the lower sealing ring 17 on the outer side of the lower valve rod 14 rotates on the inner side of the third rubber bump 18 and is attached to the third rubber bump 18, so that the sealing performance between the lower valve rod 14 and the valve body 5 and the valve seat 9 is improved.

firstly, the upper side and the lower side of the butterfly plate 8 are both provided with positioning grooves which are in T-shaped structures, the upper valve rod 10 and the lower valve rod 14 are both clamped and connected with the positioning grooves, the T-shaped structures are adopted, the contact area between the valve rod and the butterfly plate 8 can be ensured to be larger, meanwhile, the first rubber bumps 12 are arranged inside the two positioning grooves, the sealing property between the valve rod and the butterfly plate 8 can be ensured to be higher, meanwhile, the butterfly plate lining 7 and the valve body lining 6 are arranged between the butterfly plate 8 and the valve body 5, the corrosion resistance of the butterfly valve is remarkable, the overall performance of the fluorine-lined butterfly valve is greatly improved, the butterfly valve is practical and simple, the sealing property is good, the service life is long, the butterfly valve is safe and reliable, secondly, the second rubber bumps 15 are arranged inside the first bracket 2 and the second bracket 3, the outer side of the upper valve rod 10 is positioned inside the first bracket 2 and the second bracket, meanwhile, a third rubber bump 18 is arranged inside the valve seat 9, a layer of lower sealing ring 17 is sleeved outside the outer side of the lower valve rod 14 and inside the valve seat 9, the rubber bump and the sealing ring are matched, the sealing performance of the rubber bump and the sealing ring is greatly increased, sealing between the valve rod and the support and between the valve seat 9 is guaranteed, and the defect that the sealing effect is reduced due to the fact that the sealing ring is deformed for a long time can be effectively overcome.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a two eccentric lining fluorine flange butterfly valves, includes valve body (5), support, rotates handle (1) and disk seat (9), and wherein disk seat (9) set up the bottom intermediate position department at valve body (5), and there is rotation handle (1), its characterized in that at the top intermediate position department of valve body (5) through the leg joint: the support comprises a first support (2) and a second support (3), wherein the second support (3) is arranged in the middle of the top of the valve body (5), the top of the second support (3) is connected with the first support (2) through a bolt rod, the top of the first support (2) is movably connected with a rotating handle (1), and a limiting block (4) is arranged on the top of the valve body (5) and on the outer side of the second support (3) and used for limiting the position of the valve body (5);

the butterfly valve is characterized by further comprising a butterfly plate (8) positioned inside the valve body (5), wherein an upper positioning groove (11) is formed in the top of the butterfly plate (8), a lower positioning groove (13) is formed in the bottom of the butterfly plate (8), and the upper positioning groove (11) and the lower positioning groove (13) are formed in a vertical central vertical line of the butterfly plate (8);

still include valve rod (10), go up valve rod (10) from the top down run through the top of first support (2), second support (3) and valve body (5) in proper order and extend to last constant head tank (11) at butterfly plate (8) top, the inside of going up constant head tank (11) and the outside that is located last valve rod (10) are provided with a plurality of first rubber bump (12), the inside of disk seat (9) is provided with lower valve rod (14), and wherein lower valve rod (14) run through the bottom of valve body (5) and extend to in lower constant head tank (13) that butterfly plate (8) bottom was seted up, the inside of lower constant head tank (13) and the outside that is located lower valve rod (14) also are provided with a plurality of first rubber bump (12).

2. The double eccentric fluorine lined flange butterfly valve of claim 1, wherein: go up constant head tank (11) and constant head tank (13) down and be T type structure, the bottom of going up valve rod (10) is T type structure, the top of lower valve rod (14) also is T type structure.

3. The double eccentric fluorine lined flange butterfly valve of claim 1, wherein: go up the outside of valve rod (10) and be located inside cladding of second support (3), first support (2) and valve body (5) upside and have one deck to go up sealing washer (16), wherein go up the outside of sealing washer (16) and be located the inboard of first support (2) and second support (3) and be provided with a plurality of second rubber convex blocks (15), its a plurality of second rubber convex blocks (15) are laminated with last sealing washer (16) mutually.

4. The double eccentric fluorine lined flange butterfly valve of claim 1, wherein: the outside of lower valve rod (14) just is located disk seat (9) and the inside cladding of valve body (5) downside and has one deck lower sealing washer (17), and wherein the outside of lower sealing washer (17) just is located the inside of disk seat (9) and valve body (5) downside and is provided with a plurality of third rubber bump (18), and a plurality of third rubber bump (18) and lower sealing washer (17) are laminated mutually.

5. The double eccentric fluorine lined flange butterfly valve of claim 1, wherein: a butterfly plate lining (7) is arranged inside the valve body (5) and outside the butterfly plate (8).

6. The double eccentric fluorine lined flange butterfly valve of claim 5, wherein: and a valve body lining (6) is arranged on the outer side of the butterfly plate (8) and inside the valve body (5).

7. The double eccentric fluorine lined flange butterfly valve of claim 6, wherein: the butterfly plate lining (7) is attached to the valve body lining (6).