CN111336262A - Butterfly valve capable of preventing misoperation - Google Patents
Butterfly valve capable of preventing misoperation Download PDFInfo
- Publication number
- CN111336262A CN111336262A CN201811557053.8A CN201811557053A CN111336262A CN 111336262 A CN111336262 A CN 111336262A CN 201811557053 A CN201811557053 A CN 201811557053A CN 111336262 A CN111336262 A CN 111336262A
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- CN
- China
- Prior art keywords
- valve
- rack
- valve shaft
- butterfly
- valve body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/221—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves specially adapted operating means therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/54—Mechanical actuating means with toothed gearing with pinion and rack
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K35/00—Means to prevent accidental or unauthorised actuation
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Preventing Unauthorised Actuation Of Valves (AREA)
Abstract
The invention provides a butterfly valve preventing misoperation, which comprises a valve body, a valve shaft and a butterfly plate, wherein a valve body hole for the valve shaft to pass through is formed in the valve body, the part of the valve shaft, which is positioned in a valve body channel, is connected with the butterfly plate, a support box is arranged on the upper side of the valve body, a through hole for the valve shaft to pass through is formed in the support box, a hand wheel is arranged at the upper end of the valve shaft, a gear and a rack which are meshed with each other are arranged in the support box, the gear is sleeved on the valve shaft, a sliding groove for the rack to slide is formed in the inner wall of the support box, two ends of the rack are connected with locking screw rods, a. The butterfly valve can limit and lock the valve shaft, and prevents the valve shaft from rotating due to misoperation to influence the state of the valve.
Description
Technical Field
The invention belongs to the technical field of valves, and particularly relates to a butterfly valve capable of preventing misoperation.
Background
A butterfly valve, also called a flap valve, is a regulating valve with a simple structure, can be used for the on-off control of low-pressure pipeline media, and is a valve which is opened and closed by rotating around a valve shaft and taking a closing member (a valve clack or a butterfly plate) as a disc.
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 existing butterfly valve is not provided with a locking device, the valve shaft is rotated due to misoperation or touching of a hand wheel in the use process so as to change the opening and closing state of the valve, and the common locking device can only lock the opening or closing position, and can not realize the locking of other positions or can only carry out discrete locking of a plurality of positions.
Disclosure of Invention
The invention aims to solve the technical problem of providing a butterfly valve for preventing misoperation, which is used for limiting and locking a valve shaft and preventing the valve shaft from rotating due to misoperation to influence the state of a valve.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides a butterfly valve of preventing maloperation, includes valve body, valve shaft and butterfly plate, is equipped with the valve body hole that supplies the valve shaft to pass on the valve body, and the butterfly plate is connected to the part that the valve shaft is located the valve body passageway, the valve body upside is equipped with the support box, supports the box and is equipped with the through-hole that supplies the valve shaft to pass, and the valve shaft upper end is equipped with the hand wheel, is equipped with intermeshing's gear and rack in the support box, and the gear suit is on the valve shaft, supports the box inner wall and is equipped with the gliding spout of confession rack, and locking screw is connected at the both ends of rack, supports the box lateral wall and is equipped with.
In the preferred scheme, two limiting plates are arranged in the sliding groove, the two limiting plates are respectively arranged at two ends of the rack, and through holes for the locking screw to pass through are formed in the limiting plates.
In a preferable scheme, one end of the locking screw rod, which is far away from the locking nut, is provided with an anti-drop plate.
In the preferred scheme, a groove is formed in the outer side of the butterfly plate along the circumference, and a sealing ring is arranged in the groove.
According to the butterfly valve preventing misoperation, the left and right movement of the rack 7 is limited through the matching of the locking screw rod and the locking nut, so that the gear is prevented from rotating, the valve shaft is prevented from being locked, the opening and closing state of the valve is prevented from being changed due to the rotation of the valve shaft caused by misoperation or touch in the using process, and the valve is locked.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the mounting of the gear and rack;
in the figure: the valve comprises a valve body 1, a valve shaft 2, a butterfly plate 3, a supporting box 4, a hand wheel 5, a gear 6, a rack 7, a sliding groove 8, a locking screw rod 9, a locking nut 10, a limiting plate 11, an anti-dropping plate 12 and a sealing ring 13.
Detailed Description
As shown in figures 1-2, a butterfly valve for preventing misoperation comprises a valve body 1, a valve shaft 2 and a butterfly plate 3, wherein the valve body 1 is provided with a valve body hole for the valve shaft 2 to pass through, the part of the valve shaft 2 positioned in a channel of the valve body 1 is connected with the butterfly plate 3, 1 upside of valve body is equipped with supports box 4, support box 4 bottom can set up the connecting plate, the connecting plate passes through the bolt and is connected with valve body 1, support box 4 and be equipped with the through-hole that supplies valve shaft 2 to pass, 2 upper ends of valve shaft are equipped with hand wheel 5, be equipped with intermeshing's gear 6 and rack 7 in the support box 4, gear 6 suit is on valve shaft 2, valve shaft 2 passes through the key-type connection with gear 6, support box 4 inner wall and be equipped with the gliding spout 8 of confession rack 7, locking screw 9 is connected at the both ends of rack 7, support box 4 lateral wall is equipped with the through-hole that supplies locking screw 9 to pass, locking screw 9 keeps away from the one end of rack 7 and is.
During specific use, the valve shaft 2 is rotated through the hand wheel 5, so that the closing state of the valve is adjusted, when the butterfly plate 3 rotates to a certain angle, after the flow reaches the required flow, the locking nut 10 is rotated, the position of the locking nut 10 on the locking screw 9 is adjusted, the locking screw 9 is limited to move left and right by abutting the two locking nuts 10 against the outer side of the supporting box 4, so that the horizontal movement of the rack 7 is limited, and the rack 7 cannot rotate due to the meshing of the rack 7 and the gear 6, so that the valve is locked. The valve shaft 2 is prevented from rotating to change the opening state of the valve due to misoperation or touch of the hand wheel 5 in a narrow space after the valve is adjusted; meanwhile, the butterfly plate 3 can lock the valve when rotating to any angle, so that the valve can be locked in any state, and the butterfly plate is suitable for adjusting the flow.
Two limiting plates 11 are arranged in the sliding groove 8, the two limiting plates 11 are respectively arranged at two ends of the rack 7, and through holes for the locking screw rods 9 to pass through are formed in the limiting plates 11.
The butterfly plate 3 of the butterfly valve rotates at 0-90 degrees to open or close the valve, and a limit plate 11 is arranged to indicate a switching signal. When one end of the rack 7 abuts against one side of one of the limiting plates 11, the valve is in an open state, and the limiting plate 11 limits the rack 7 to rotate continuously, so that the hand wheel 5 cannot rotate continuously; and the hand wheel 5 is rotated reversely, when one end of the rack 7 is abutted against one side of the other limiting plate 11, the valve is in a closed state, and the hand wheel 5 cannot rotate continuously due to the limiting effect of the limiting plate 11. Therefore, the valve is ensured to be completely closed or completely opened, and the indicating function is realized on the opening and closing position.
And one end of the locking screw 9, which is far away from the locking nut 10, is provided with an anti-drop plate 12. The house pallet 12 is provided to prevent the lock nut 10 from being disengaged from the lock screw 9.
The outer side of the butterfly plate 3 is circumferentially provided with a groove, and a sealing ring 13 is arranged in the groove. The sealing performance of the butterfly plate 3 and the valve body 1 is improved.
The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention is defined by the claims, and equivalents including technical features described in the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.
Claims (4)
1. The utility model provides a butterfly valve of preventing maloperation, includes valve body (1), valve shaft (2) and butterfly plate (3), is equipped with the valve body hole that supplies valve shaft (2) to pass on valve body (1), and butterfly plate (3), its characterized in that are connected to the part that valve shaft (2) are located valve body (1) passageway: valve body (1) upside is equipped with support box (4), support box (4) and be equipped with the through-hole that supplies valve shaft (2) to pass, valve shaft (2) upper end is equipped with hand wheel (5), be equipped with intermeshing's gear (6) and rack (7) in support box (4), gear (6) suit is on valve shaft (2), support box (4) inner wall is equipped with supplies gliding spout (8) of rack (7), locking screw (9) are connected at the both ends of rack (7), support box (4) lateral wall is equipped with the through-hole that supplies locking screw (9) to pass, the one end that rack (7) were kept away from in locking screw (9) is equipped with and locking nut (10) with locking screw (9) complex.
2. A butterfly valve against incorrect operation according to claim 1, characterized in that: the novel gear rack is characterized in that two limiting plates (11) are arranged in the sliding groove (8), the two limiting plates (11) are respectively arranged at two ends of the gear rack (7), and through holes for the locking screw rods (9) to penetrate are formed in the limiting plates (11).
3. A butterfly valve against incorrect operation according to claim 1, characterized in that: and one end of the locking screw rod (9) far away from the locking nut (10) is provided with an anti-drop plate (12).
4. A butterfly valve against incorrect operation according to claim 1, characterized in that: the outer side of the butterfly plate (3) is circumferentially provided with a groove, and a sealing ring (13) is arranged in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811557053.8A CN111336262A (en) | 2018-12-19 | 2018-12-19 | Butterfly valve capable of preventing misoperation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811557053.8A CN111336262A (en) | 2018-12-19 | 2018-12-19 | Butterfly valve capable of preventing misoperation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111336262A true CN111336262A (en) | 2020-06-26 |
Family
ID=71179489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811557053.8A Pending CN111336262A (en) | 2018-12-19 | 2018-12-19 | Butterfly valve capable of preventing misoperation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111336262A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111895108A (en) * | 2020-08-17 | 2020-11-06 | 杨桂英 | Throttle adjusting butterfly valve |
| CN114183543A (en) * | 2021-12-10 | 2022-03-15 | 江苏瑞润隆机械有限公司 | Butterfly valve for petroleum drilling and production and use method thereof |
| CN114738499A (en) * | 2022-03-24 | 2022-07-12 | 华能国际电力江苏能源开发有限公司 | Urea inlet means based on SCR denitration |
-
2018
- 2018-12-19 CN CN201811557053.8A patent/CN111336262A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111895108A (en) * | 2020-08-17 | 2020-11-06 | 杨桂英 | Throttle adjusting butterfly valve |
| CN114183543A (en) * | 2021-12-10 | 2022-03-15 | 江苏瑞润隆机械有限公司 | Butterfly valve for petroleum drilling and production and use method thereof |
| CN114183543B (en) * | 2021-12-10 | 2024-01-12 | 江苏优特莫森机械有限公司 | Butterfly valve for petroleum drilling and use method thereof |
| CN114738499A (en) * | 2022-03-24 | 2022-07-12 | 华能国际电力江苏能源开发有限公司 | Urea inlet means based on SCR denitration |
| CN114738499B (en) * | 2022-03-24 | 2023-11-03 | 华能国际电力江苏能源开发有限公司 | Urea feed liquor device based on SCR denitration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200626 |
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| WD01 | Invention patent application deemed withdrawn after publication |