CN214699251U

CN214699251U - Manual dust butterfly valve

Info

Publication number: CN214699251U
Application number: CN202120675388.0U
Authority: CN
Inventors: 郑权峰
Original assignee: Zhejiang Xiafeng Precision Die Casting Co ltd
Current assignee: Zhejiang Xiafeng Precision Die Casting Co ltd
Priority date: 2021-04-01
Filing date: 2021-04-01
Publication date: 2021-11-12
Anticipated expiration: 2031-04-01

Abstract

The utility model relates to a manual dust butterfly valve, install in the valve rod of valve body upper end including the valve body, the valve rod is the setting of cavity cylinder, be equipped with the valve rod that cavity set up in the valve body, the one end of valve rod is located the outside of rod cover top, and the other end is located the valve body and fixedly connected with valve plate, one side that the valve plate deviates from the valve rod is equipped with and is used for rotating the pivot of connecting the valve body inner wall and drive valve plate pivoted, be equipped with the certain distance between valve plate and the valve body inner wall, be equipped with the standing groove on the lateral wall of the both sides of valve plate, the both ends of standing groove extend to valve rod and pivot respectively, be equipped with the inflatable seal spare that is used for sealed valve plate and valve body inner wall in the standing groove, the both sides of valve rod inner wall all are equipped with the venthole that cooperates with inflatable seal spare, be equipped with the inflatable air-pushing piece that is used for giving the air outlet hole inflation in the valve rod to provide a sealed effect splendid, Prevent the valve plate card from dying and rotate the manual dust butterfly valve of the valve plate flexibly.

Description

Manual dust butterfly valve

Technical Field

The utility model relates to the technical field of valves, in particular to manual dust butterfly valve.

Background

The butterfly valve is a regulating valve with simple structure, and can be used for on-off control of low-pressure pipeline media, namely, a valve with a closing member (a valve clack or a butterfly plate) which is a disc and rotates around a valve shaft to open and close, wherein the dust butterfly valve is one of the butterfly valves and is used for hard particle dust media such as dry dust and the like.

Among the prior art, to the dust butterfly valve, hard particle dust medium such as dry ash, if with the valve of hard seal, can certainly lead to the fact card main valve, cause the jam to cause the not tight condition of valve closure to take place, traditional dust butterfly valve adopts rubber seal to seal, because the influence of the long-time wearing and tearing of sealing washer and expend with heat and contract with cold, still has the gap between valve body and the valve plate, consequently needs a dust butterfly valve that sealing performance is better.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a sealed effect is splendid, prevent that the valve plate card from dying and the nimble manual dust butterfly valve who rotates the valve plate.

The technical scheme of the utility model is realized like this: the utility model provides a manual dust butterfly valve, includes that the valve body installs in the valve rod of valve body upper end, the valve rod sets up for the cavity cylinder, be equipped with the valve rod that cavity set up in the valve body, the one end of valve rod is located the outside of rod cover top, and the other end is located the valve body and fixedly connected with valve plate, one side that the valve plate deviates from the valve rod is equipped with and is used for rotating the pivot of connecting the valve body inner wall and drive valve plate pivoted, be equipped with the certain distance between valve plate and the valve body inner wall, be equipped with the standing groove on the lateral wall of the both sides of valve plate, the both ends of standing groove extend to on valve rod and the pivot respectively, be equipped with the inflatable seal spare that is used for sealed valve plate and valve body inner wall in the standing groove, the both sides of valve rod inner wall all are equipped with the venthole with inflatable seal spare matched with, be equipped with in the valve rod and be used for giving the gas pushing away the gas piece of gas pocket inflation.

By adopting the technical scheme, when the valve body needs to be closed, the push rod is pressed, the push rod pushes the fixed block to descend, the sealing block descends along with the air, the air in the valve rod is pushed, the air enters the sealing ring through the air outlet, the sealing ring is enlarged under the influence of the air, the clamping block is pushed, the clamping block is pressed with the groove to form a good sealing effect, the clamping rod is pushed by the first spring to enter the inserting hole at the moment, the air pushing piece is fixed at the same time, the air in the sealing ring is not lost, when the valve body needs to be opened, the clamping rod enters the chute only by pressing the clamping rod, the second spring is in a compressed state when the valve body is closed, the clamping rod is not limited at the moment, the air pushing piece is rebounded, the air pushing piece is lifted, the sealing block withdraws the air, the sealing ring shrinks and becomes shriveled, the clamping block is not limited with the groove, and can be easily rotated, can reach light rotation, and can prevent to be blocked dead phenomenon by the dust.

The utility model discloses further set up to: and the inner wall of the valve body is provided with a groove matched with the inflatable sealing element.

Through adopting above-mentioned technical scheme, through the setting of recess, can make inflatable seal spare reach better fixed sealed effect when the extrusion recess.

The utility model discloses further set up to: inflatable seal spare includes connecting block, joint piece and is used for gas filled sealing washer, the one end and the standing groove fixed connection of connecting block, the other end and sealing washer fixed connection, joint piece fixed connection deviates from the one end of connecting block in the sealing washer, and joint piece and recess joint.

Through adopting above-mentioned technical scheme, can make the fixed effect of sealing washer better, aerify through the sealing washer and can make the joint piece get into the recess in for sealed effect is better.

The utility model discloses further set up to: push away the gas spare include fixed block, joint pole, first spring, push rod and with valve rod inner wall sliding connection and form sealed piece, the one end and the sealed piece of fixed block are connected, and the other end is connected with the push rod, the one end that the push rod deviates from the fixed block runs through the valve rod top and is located the valve rod outside, be equipped with the holding tank on the lateral wall of fixed block, the one end fixed connection of first spring is in the holding tank bottom, the other end and joint pole fixed connection, be equipped with on the valve rod inside wall and be used for the gliding spout of joint pole, and the spout tank bottom is equipped with the spliced eye of pegging graft with the joint pole.

Through adopting above-mentioned technical scheme, through the setting that pushes away the gas spare, can push away the gas in the valve rod, and can be blocked, realize that sealing washer gas can not run off, just can externally just promote gas through the push rod, provide convenience greatly.

The utility model discloses further set up to: be equipped with the dead lever in the valve rod, and be located sealed piece below, be equipped with the second spring that is used for kick-backing air-pushing spare between dead lever and the sealed piece.

Through adopting above-mentioned technical scheme, can make and push away the automatic resilience of gas spare, facilitate.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic view of the overall structure of an embodiment of the present invention;

FIG. 2 is an enlarged view of the point A in FIG. 1 according to the embodiment of the present invention;

fig. 3 is a schematic structural view of the inflatable sealing element according to the embodiment of the present invention.

Reference numerals: 1. a valve body; 2. a valve plate; 3. a rotating shaft; 4. a groove; 5. a gas-filled seal; 6. a placement groove; 7. a rod sleeve; 8. a valve stem; 9. an air outlet; 10. a sealing block; 11. a fixed block; 12. a push rod; 13. Accommodating grooves; 14. a first spring; 15. a clamping and connecting rod; 16. a chute; 17. inserting holes; 18. a second spring; 19. fixing the rod; 20. a seal ring; 21. connecting blocks; 22. and a clamping block.

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 efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 3, the utility model discloses a manual dust butterfly valve, which comprises a valve body 1, a valve rod 8 mounted on the upper end of the valve body 1, wherein the valve rod 8 is a hollow cylinder, a hollow valve rod 8 is arranged in the valve body 1, one end of the valve rod 8 is positioned outside the upper part of a rod sleeve 7, the other end is positioned in the valve body 1 and is fixedly connected with a valve plate 2, one side of the valve plate 2, which is far away from the valve rod 8, is provided with a rotating shaft 3 for rotatably connecting the inner wall of the valve body 1 and driving the valve plate 2 to rotate, a certain distance is arranged between the valve plate 2 and the inner wall of the valve body 1, a placing groove 6 is arranged on the outer side wall of the two sides of the valve plate 2, the two ends of the placing groove 6 respectively extend to the valve rod 8 and the rotating shaft 3, an inflatable sealing element 5 for sealing the inner wall of the valve plate 2 and the valve body 1 is arranged in the placing groove 6, two sides of the inner wall of the valve rod 8 are both provided with air outlet holes 9 matched with the inflatable sealing element 5, the valve rod 8 is internally provided with an air pushing piece used for inflating the air hole 9, when the valve body 1 needs to be closed, the push rod 12 is pressed, the push rod 12 pushes the fixing block 11 to descend, the sealing block 10 descends along with the descending, air in the valve rod 8 is pushed, the air enters the sealing ring 20 through the air outlet hole 9, the sealing ring 20 is influenced by the air to be enlarged, the clamping block is pushed, the clamping block is pressed with the groove 4 to form a good sealing effect, the clamping rod 15 is pushed by the first spring 14 to enter the inserting hole 17 at the moment, meanwhile, the air pushing piece is fixed, so that the air in the sealing ring 20 is not lost, when the valve body 1 needs to be opened, the clamping rod 15 is only pressed to enable the clamping rod 15 to enter the chute 16, because the second spring 18 is in a compression state when the valve body 1 is closed, the air pushing piece is not limited by the clamping rod 15 at the moment, the air pushing piece rebounds to enable the air pushing piece to ascend, and the sealing block 10 withdraws the air at the same time, sealing washer 20 will contract and become flat, and the joint piece will not be in the restriction with recess 4 joint, just can rotate easily, can enough reach light rotation, and can prevent to be blocked dead phenomenon by the dust.

Be equipped with on the inner wall of valve body 1 with inflatable seal spare 5 matched with recess 4, through the setting of recess 4, can make inflatable seal spare 5 reach better fixed sealed effect when extrusion recess 4.

Inflatable seal 5 includes connecting block 21, joint piece and is used for gas filled sealing washer 20, the one end and the 6 fixed connection of standing groove of connecting block 21, the other end and sealing washer 20 fixed connection, joint piece fixed connection is in the one end that sealing washer 20 deviates from connecting block 21, and joint piece and 4 joints of recess, can make sealing washer 20 fixed effect better, aerify through sealing washer 20 and can make the joint piece get into in recess 4 for sealed effect is better.

The gas pushing part comprises a fixed block 11, a clamping rod 15, a first spring 14, a push rod 12 and a sealing block 10 which is connected with the inner wall of the valve rod 8 in a sliding manner and forms a seal, one end of the fixed block 11 is connected with the sealing block 10, the other end of the fixed block is connected with the push rod 12, one end of the push rod 12, which is far away from the fixed block 11, penetrates through the top end of the valve rod 8 and is positioned outside the valve rod 8, a containing groove 13 is arranged on the side wall of the fixed block 11, one end of the first spring 14 is fixedly connected to the bottom of the containing groove 13, the other end of the first spring is fixedly connected with the clamping rod 15, a sliding groove 16 for sliding the clamping rod 15 is arranged on the inner side wall of the valve rod 8, a plug hole 17 for plugging the clamping rod 15 is arranged at the bottom of the sliding groove 16, gas in the valve rod 8 can be pushed through the gas pushing part, and can be blocked, the gas of the sealing ring 20 can not be lost, and can be pushed outside through the push rod 12, greatly providing convenience.

Be equipped with dead lever 19 in the valve rod 8, and be located sealed piece 10 below, be equipped with the second spring 18 that is used for kick-backing to push away the gas piece between dead lever 19 and the sealed piece 10, can make and push away the automatic resilience of gas piece, facilitate.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a manual dust butterfly valve, includes that valve body (1) installs in valve rod (8) of valve body (1) upper end, valve rod (8) are the setting of cavity cylinder, its characterized in that: the valve is characterized in that a hollow valve rod (8) is arranged in the valve body (1), one end of the valve rod (8) is positioned outside the upper part of the rod sleeve (7), the other end of the valve rod is positioned in the valve body (1) and is fixedly connected with a valve plate (2), one side of the valve plate (2) departing from the valve rod (8) is provided with a rotating shaft (3) which is used for rotatably connecting the inner wall of the valve body (1) and driving the valve plate (2) to rotate, a certain distance is arranged between the valve plate (2) and the inner wall of the valve body (1), a placing groove (6) is arranged on the outer side wall of the two sides of the valve plate (2), the two ends of the placing groove (6) respectively extend onto the valve rod (8) and the rotating shaft (3), an inflatable sealing element (5) used for sealing the inner wall of the valve plate (2) and the valve body (1) is arranged in the placing groove (6), the two sides of the inner wall of the valve rod (8) are respectively provided with an air outlet hole (9) matched with the inflatable sealing element (5), an air pushing piece used for inflating the air hole (9) is arranged in the valve rod (8).

2. A manual dust butterfly valve in accordance with claim 1, wherein: and a groove (4) matched with the inflatable sealing element (5) is arranged on the inner wall of the valve body (1).

3. A manual dust butterfly valve in accordance with claim 1, wherein: inflatable seal spare (5) include connecting block (21), joint piece and are used for gas filled sealing washer (20), the one end and standing groove (6) fixed connection of connecting block (21), the other end and sealing washer (20) fixed connection, joint piece fixed connection deviates from the one end of connecting block (21) in sealing washer (20), and joint piece and recess (4) joint.

4. A manual dust butterfly valve in accordance with claim 1, wherein: push away the gas spare and include fixed block (11), joint pole (15), first spring (14), push rod (12) and with valve rod (8) inner wall sliding connection and form sealed piece (10), the one end and the sealed piece (10) of fixed block (11) are connected, and the other end is connected with push rod (12), the one end that push rod (12) deviate from fixed block (11) runs through valve rod (8) top and is located valve rod (8) outside, be equipped with holding tank (13) on the lateral wall of fixed block (11), the one end fixed connection of first spring (14) is in holding tank (13) tank bottom, and the other end and joint pole (15) fixed connection, be equipped with on valve rod (8) inside wall and be used for joint pole (15) gliding spout (16), and spout (16) tank bottom is equipped with spliced eye (17) of pegging graft with joint pole (15).

5. A manual dust butterfly valve according to claim 4, wherein: be equipped with dead lever (19) in valve rod (8), and be located sealed piece (10) below, be equipped with second spring (18) that are used for kick-backing air-pushing spare between dead lever (19) and sealed piece (10).