CN210716005U

CN210716005U - Bidirectional sealing butterfly valve

Info

Publication number: CN210716005U
Application number: CN201921856736.3U
Authority: CN
Inventors: 陈金钻
Original assignee: Benxing Valve Manufacturing Co ltd
Current assignee: Benxing Valve Manufacturing Co ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-06-09
Anticipated expiration: 2029-10-31

Abstract

The utility model relates to the technical field of valves, and a two-way seal butterfly valve is disclosed, which comprises an outer shell, the bottom fixed mounting of shell has the fixed plate, the inside movable mounting of shell has the dish board, the right side fixed mounting of dish board has quantity to be two installation cover, the top movable mounting of fixed plate has the inside first pivot that is located the shell and extends to below installation cover inside, the top movable mounting of first pivot has the second pivot that runs through top installation cover and extend to the shell top, the inside fixed mounting of shell has the outside sealing washer that is located the dish board, the top movable mounting of second pivot has fixed cover, the left side movable mounting of second pivot has the fixture block that is located fixed cover inside, the top fixed mounting of fixed cover has the gear. The bidirectional sealing butterfly valve can ensure that the pressure inside the bidirectional sealing butterfly valve is not too large, and effectively protects the disc plate, thereby prolonging the service life of the bidirectional sealing butterfly valve.

Description

Bidirectional sealing butterfly valve

Technical Field

The utility model relates to the technical field of valves, specifically a two way seal butterfly valve.

Background

The bidirectional sealing butterfly valve is mainly used in the fields of petroleum, chemical industry, chemical fertilizer, power station, metallurgy, papermaking, light industry and the like, is used as a mechanism for cutting off and adjusting on a pipeline, is suitable for media such as gas, liquid and the like, has the advantages of short switching time, small flow resistance and the like, adopts a double-eccentric structure, hard alloy is built up on a sealing surface of a valve body, a sealing ring of the butterfly valve adopts stainless steel and graphite asbestos, and has good elasticity and high service temperature.

The existing bidirectional sealing butterfly valve is often in a high-pressure state when in use, and if the pressure is too high, the disc plate can be damaged, so that the service life of the bidirectional sealing butterfly valve is shortened, and the bidirectional sealing butterfly valve is provided.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a two-way seal butterfly valve possesses advantages such as long service life, has solved current two-way seal butterfly valve and often can be in high-pressure state using, can damage the dish board if pressure is too big to two-way seal butterfly valve life's problem has been reduced.

(II) technical scheme

In order to realize the purpose of the service life, the utility model provides a following technical scheme: a two-way sealing butterfly valve comprises an outer shell, wherein a fixed plate is fixedly arranged at the bottom of the outer shell, a disc plate is movably arranged in the outer shell, the right side of the disc plate is fixedly provided with two installation sleeves, the top of the fixed plate is movably provided with a first rotating shaft which is positioned in the outer shell and extends to the inside of a lower installation sleeve, the top of the first rotating shaft is movably provided with a second rotating shaft which penetrates through the upper installation sleeve and extends to the upper part of the outer shell, a sealing ring which is positioned outside the disc plate is fixedly arranged in the outer shell, a fixed sleeve is movably arranged at the top of the second rotating shaft, a clamping block which is positioned in the inner part of the fixed sleeve is movably arranged at the left side of the second rotating shaft, a gear is fixedly arranged at the top of the fixed sleeve, an installation shell which is positioned outside the gear is fixedly arranged at the top of the outer shell, a worm which, the utility model discloses a worm and gear engagement, the positive fixed mounting of worm has the carousel, the top fixed mounting of shell has the connection shell that is located the installation shell left, the inside movable mounting of connection shell has steady voltage spring, steady voltage spring's bottom fixed mounting has first spring holder, the bottom movable mounting of first spring holder has the movable block, steady voltage spring's top fixed mounting has the second spring holder, the top fixed mounting of connection shell has the screw thread post, the top movable mounting of second spring holder has the connecting rod that runs through the screw thread post and extend to screw thread post top, the outside threaded connection of screw thread post has the regulation lid that is located the connecting rod top.

Preferably, the left side of the second rotating shaft and the left side of the inner wall of the fixing sleeve are both provided with a clamping groove, the clamping groove is matched with the clamping block, and the clamping block is located inside the clamping groove.

Preferably, the left side of the fixed sleeve is provided with a fixing screw which penetrates through the second rotating shaft and extends to the inside of the disc plate, the inside of the second rotating shaft is provided with a mounting hole, and the mounting hole is matched with the fixing screw.

Preferably, the connecting shell is internally provided with a connecting hole, the connecting hole is positioned at the bottom of the movable block, the connecting shell is internally provided with a drainage hole, and the drainage hole is positioned on the left side of the movable block.

Preferably, a movable hole is formed in the connecting shell, the diameter of the movable hole, the maximum diameter of the first spring seat and the maximum diameter of the second spring seat are the same, and the first spring seat and the second spring seat are located in the movable hole.

Preferably, the inside of adjusting the lid is seted up threaded hole, and threaded hole and screw thread post are adapted.

(III) advantageous effects

Compared with the prior art, the utility model provides a two-way seal butterfly valve possesses following beneficial effect:

1. this two way seal butterfly valve, can give a decurrent power of first spring holder all the time through steady voltage spring, thereby make the movable block receive a decurrent power all the time, make inside liquid or the gas of shell can not enter into the inside of discharge orifice, when the dish board is in the closed condition, if the inside pressure of shell is too big, can make the movable block receive an ascending pressure, when this pressure is greater than the power that steady voltage spring gave, the movable block can upwards lift up, inside liquid or the gas of shell then can get into the inside of discharge orifice through the connecting hole, thereby can carry out the pressure release to the inside of shell, thereby make the inside pressure of this two way seal butterfly valve can not be too big, the effectual dish board of having protected, thereby the life of this two way seal butterfly valve has been increased.

2. This two way seal butterfly valve, adjust the lid through rotating, under the effect of screw hole, can drive and adjust the lid and reciprocate, thereby can drive connecting rod and second spring holder in proper order and reciprocate, and then can make the distance between first spring holder and the second spring holder change, thereby make the elasticity degree of steady voltage spring change, make the power that first spring holder received change, finally make the movable block lift the change that required power has taken place, can reach the effect of adjusting this two way seal butterfly valve internal pressure, make this two way seal butterfly valve's suitability wider.

Drawings

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

FIG. 2 is an enlarged schematic view of the structure at the position A of the present invention;

fig. 3 is a front view of the housing of the present invention.

In the figure: the device comprises a shell 1, a fixing plate 2, a disc plate 3, a mounting sleeve 4, a first rotating shaft 5, a second rotating shaft 6, a sealing ring 7, a fixing sleeve 8, a clamping block 9, a gear 10, a mounting shell 11, a worm 12, a connecting shell 13, a pressure stabilizing spring 14, a first spring seat 15, a movable block 16, a second spring seat 17, a threaded column 18, a connecting rod 19, an adjusting cover 20 and a rotary disc 21.

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, a bidirectional sealing butterfly valve comprises a housing 1, a fixed plate 2 is fixedly installed at the bottom of the housing 1, a disc plate 3 is movably installed inside the housing 1, two installation sleeves 4 are fixedly installed on the right side of the disc plate 3, a first rotating shaft 5 which is located inside the housing 1 and extends into the installation sleeve 4 below is movably installed at the top of the fixed plate 2, a second rotating shaft 6 which penetrates through the installation sleeve 4 above and extends to the upper side of the housing 1 is movably installed at the top of the first rotating shaft 5, a sealing ring 7 which is located outside the disc plate 3 is fixedly installed inside the housing 1, the sealing ring 7 can be made of polytetrafluoroethylene, a fixed sleeve 8 is movably installed at the top of the second rotating shaft 6, a fixing screw which penetrates through the second rotating shaft 6 and extends into the disc plate 3 is arranged on the left side of the fixed sleeve 8, an installation hole is formed inside the second rotating shaft 6, the mounting hole is matched with a fixing screw, so that the second rotating shaft 6 can drive the fixing sleeve 8 to rotate while rotating, and further drive the disc plate 3 to rotate, a clamping block 9 positioned inside the fixing sleeve 8 is movably mounted on the left side of the second rotating shaft 6, clamping grooves are formed in the left side of the second rotating shaft 6 and the left side of the inner wall of the fixing sleeve 8 and are matched with the clamping block 9, the clamping block 9 is positioned inside the clamping groove, so that the clamping block 9 and the second rotating shaft 6 can be driven to rotate together when the fixing sleeve 8 rotates, a gear 10 is fixedly mounted at the top of the fixing sleeve 8, a mounting shell 11 positioned outside the gear 10 is fixedly mounted at the top of the shell 1, a worm 12 positioned on the right side of the gear 10 and extending to the front side of the mounting shell 11 is movably mounted inside the mounting shell 11, the worm 12 is meshed with the gear 10, a rotating disc 21 is fixedly mounted on the front side of the, a pressure stabilizing spring 14 is movably arranged inside the connecting shell 13, a first spring seat 15 is fixedly arranged at the bottom of the pressure stabilizing spring 14, a movable block 16 is movably arranged at the bottom of the first spring seat 15, a connecting hole is formed inside the connecting shell 13 and is positioned at the bottom of the movable block 16, a drain hole is formed inside the connecting shell 13 and is positioned at the left side of the movable block 16, when the movable block 16 rises, the connecting hole is communicated with the drain hole so as to facilitate drainage, a second spring seat 17 is fixedly arranged at the top of the pressure stabilizing spring 14, a movable hole is formed inside the connecting shell 13, the diameter of the movable hole is the same as the maximum diameter of the first spring seat 15 and the maximum diameter of the second spring seat 17, the first spring seat 15 and the second spring seat 17 are both positioned inside the movable hole and are used for the up-down movement of the first spring seat 15 and the second spring seat 17, a threaded column 18 is fixedly arranged, the top of the second spring seat 17 is movably provided with a connecting rod 19 which penetrates through the threaded column 18 and extends to the top of the threaded column 18, the outer part of the threaded column 18 is in threaded connection with an adjusting cover 20 positioned at the top of the connecting rod 19, the adjusting cover 20 is internally provided with a threaded hole, the threaded hole is matched with the threaded column 18, the adjusting cover 20 can be driven to move up and down by rotating the adjusting cover 20, so that the heights of the connecting rod 19 and the second spring seat 17 can be sequentially adjusted, and finally the pressure of the pressure stabilizing spring 14 is adjusted, the two-way sealing butterfly valve can always give a downward force to the first spring seat 15 through the pressure stabilizing spring 14, so that the movable block 16 always receives a downward force, liquid or gas in the shell 1 can not enter the inside of the drainage hole, when the disc plate 3 is in a closed state, if the pressure in the shell 1 is overlarge, the movable block 16 can receive, when the pressure is greater than the force given by the pressure stabilizing spring 14, the movable block 16 will lift upwards, the liquid or gas in the housing 1 will enter the inside of the drainage hole through the connecting hole, so as to relieve the pressure in the housing 1, so that the pressure in the bidirectional sealing butterfly valve will not be too large, the butterfly plate 3 is effectively protected, so as to prolong the service life of the bidirectional sealing butterfly valve, the adjusting cover 20 is rotated to drive the adjusting cover 20 to move up and down under the action of the threaded hole, so as to sequentially drive the connecting rod 19 and the second spring seat 17 to move up and down, so as to change the distance between the first spring seat 15 and the second spring seat 17, so as to change the tightness degree of the pressure stabilizing spring 14, change the force received by the first spring seat 15, and finally make the movable block 16 lift up the required force, the effect of adjusting the internal pressure of the bidirectional sealing butterfly valve can be achieved, and the applicability of the bidirectional sealing butterfly valve is wider.

In summary, in the bidirectional sealing butterfly valve, the pressure stabilizing spring 14 always gives a downward force to the first spring seat 15, so that the movable block 16 always receives a downward force, so that liquid or gas inside the housing 1 cannot enter the inside of the drain hole, when the disc 3 is in a closed state, if the pressure inside the housing 1 is too high, the movable block 16 can receive an upward pressure, when the pressure is greater than the force given by the pressure stabilizing spring 14, the movable block 16 can lift upward, the liquid or gas inside the housing 1 can enter the inside of the drain hole through the connecting hole, so that the pressure inside the housing 1 can be relieved, so that the pressure inside the bidirectional sealing butterfly valve cannot be too high, the disc 3 is effectively protected, the service life of the bidirectional sealing butterfly valve is prolonged, by rotating the adjusting cover 20, under the action of the threaded hole, can drive regulation lid 20 and reciprocate, thereby can drive connecting rod 19 and second spring holder 17 in proper order and reciprocate, and then can make the distance between first spring holder 15 and the second spring holder 17 change, thereby make the elasticity degree of zener spring 14 change, make the power that first spring holder 15 received change, finally make the movable block 16 lift the change that required power has taken place, can reach the effect of adjusting the inside pressure of this two-way seal butterfly valve, make the suitability of this two-way seal butterfly valve wider, it often can be in high-pressure state to have solved current two-way seal butterfly valve in the use, if too big can damage dish board 3, thereby the problem of two-way seal butterfly valve life has been reduced.

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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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. A two-way sealed butterfly valve, includes shell (1), its characterized in that: the bottom fixed mounting of shell (1) has fixed plate (2), the inside movable mounting of shell (1) has dish board (3), the right side fixed mounting of dish board (3) has quantity to be two installation cover (4), the top movable mounting of fixed plate (2) has the inside first pivot (5) that is located shell (1) and extends to below installation cover (4) inside, the top movable mounting of first pivot (5) has second pivot (6) that runs through top installation cover (4) and extends to shell (1) top, the inside fixed mounting of shell (1) has sealing washer (7) that is located dish board (3) outside, the top movable mounting of second pivot (6) has fixed cover (8), the left side movable mounting of second pivot (6) has fixture block (9) that is located fixed cover (8) inside, the top fixed mounting of fixed cover (8) has gear (10), the top fixed mounting of shell (1) has installation shell (11) that is located gear (10) outside, the inside movable mounting of installation shell (11) has right side that is located gear (10) and extends to installation shell (11) positive worm (12), worm (12) and gear (10) meshing, the front fixed mounting of worm (12) has carousel (21), the top fixed mounting of shell (1) has connecting shell (13) that is located installation shell (11) left, the inside movable mounting of connecting shell (13) has steady voltage spring (14), the bottom fixed mounting of steady voltage spring (14) has first spring holder (15), the bottom movable mounting of first spring holder (15) has movable block (16), the top fixed mounting of steady voltage spring (14) has second spring holder (17), the top fixed mounting who connects shell (13) has screw thread post (18), the top movable mounting of second spring holder (17) has connecting rod (19) that runs through screw thread post (18) and extend to screw thread post (18) top, the outside threaded connection of screw thread post (18) has regulation lid (20) that are located connecting rod (19) top.

2. A bi-directional sealing butterfly valve according to claim 1, wherein: the clamping groove is formed in the left side of the second rotating shaft (6) and the left side of the inner wall of the fixing sleeve (8), the clamping groove is matched with the clamping block (9), and the clamping block (9) is located inside the clamping groove.

3. A bi-directional sealing butterfly valve according to claim 1, wherein: the left side of fixed cover (8) is provided with the set screw who runs through second pivot (6) and extend to dish board (3) inside, and the mounting hole has been seted up to the inside of second pivot (6), mounting hole and set screw looks adaptation.

4. A bi-directional sealing butterfly valve according to claim 1, wherein: the connecting shell (13) is internally provided with a connecting hole which is positioned at the bottom of the movable block (16), the connecting shell (13) is internally provided with a drainage hole which is positioned at the left side of the movable block (16).

5. A bi-directional sealing butterfly valve according to claim 1, wherein: the movable hole is formed in the connecting shell (13), the diameter of the movable hole, the maximum diameter of the first spring seat (15) and the maximum diameter of the second spring seat (17) are the same, and the first spring seat (15) and the second spring seat (17) are located in the movable hole.

6. A bi-directional sealing butterfly valve according to claim 1, wherein: the inside of the adjusting cover (20) is provided with a threaded hole, and the threaded hole is matched with the threaded column (18).