CN209213015U - A kind of fool proof butterfly valve - Google Patents
A kind of fool proof butterfly valve Download PDFInfo
- Publication number
- CN209213015U CN209213015U CN201822137948.8U CN201822137948U CN209213015U CN 209213015 U CN209213015 U CN 209213015U CN 201822137948 U CN201822137948 U CN 201822137948U CN 209213015 U CN209213015 U CN 209213015U
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- China
- Prior art keywords
- valve
- valve shaft
- rack gear
- locking screw
- supporting case
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- Lift Valve (AREA)
- Preventing Unauthorised Actuation Of Valves (AREA)
Abstract
The utility model provides a kind of fool proof butterfly valve, including valve body, valve shaft and butterfly plate, valve body is equipped with the valve body hole passed through for valve shaft, valve shaft is located at the connection of the part in valve channel butterfly plate, supporting case is equipped on the upside of the valve body, supporting case is equipped with the through-hole passed through for valve shaft, valve shaft upper end is equipped with handwheel, pitch wheel and rack gear are equipped in supporting case, gear set is on valve shaft, supporting case inner wall is equipped with the sliding slot slided for rack gear, the both ends of rack gear connect locking screw, supporting case side wall is equipped with the through-hole passed through for locking screw, locking screw is equipped with the lock nut cooperated with locking screw far from one end of rack gear.The butterfly valve can carry out limitation locking to valve shaft, prevent faulty operation from valve shaft being made to rotate and influence the state of valve.
Description
Technical field
The utility model belongs to valve technology field, in particular to a kind of fool proof butterfly valve.
Background technique
Butterfly valve is called flap valve, is a kind of simple regulating valve of structure, can be used for the switch control of low pressure pipeline medium, butterfly
Valve refers to that closure member (flap or butterfly plate) is disk, and a kind of valve of open and close is reached around valve shaft rotation.
Valve can be used for controlling empty gas and water, steam, various corrosive medias, mud, oil product, liquid metal and radioactivity
The flowing of the various types fluid such as medium.Cutting and throttling action are mainly played on pipeline.Butterfly valve opening and closing element is a disc
Butterfly plate, in valve body around its own axis rotate, to achieve the purpose that opening and closing or adjusting.
Existing butterfly valve does not have locking device, in use Chang Yinwei maloperation or touching handwheel revolves valve shaft
Turn to change the open/close states of valve, and general locking device can only carry out the locking of open or closed position, for it
He can not achieve in the locking of position, or can only carry out the discrete locking of several positions.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of fool proof butterfly valves, carry out limiting lock to valve shaft
It is fixed, it prevents faulty operation from valve shaft being made to rotate and influences the state of valve.
A kind of in order to solve the above technical problems, the technical scheme adopted by the utility model is: fool proof butterfly valve, packet
Valve body, valve shaft and butterfly plate are included, valve body is equipped with the valve body hole passed through for valve shaft, and valve shaft is located at the connection of the part in valve channel butterfly
Plate, the valve body upside are equipped with supporting case, and supporting case is equipped with the through-hole passed through for valve shaft, and valve shaft upper end is equipped with handwheel, supporting case
Interior to be equipped with pitch wheel and rack gear, for gear set on valve shaft, supporting case inner wall is equipped with the sliding slot slided for rack gear, tooth
The both ends of item connect locking screw, and supporting case side wall is equipped with the through-hole passed through for locking screw, locking screw far from rack gear one
End is equipped with the lock nut cooperated with locking screw.
In preferred scheme, being set in the sliding slot there are two limit plate, two limit plates are separately positioned on the both ends of rack gear,
Limit plate is equipped with the through-hole passed through for locking screw.
In preferred scheme, the locking screw is equipped with anti-off board far from one end of lock nut.
In preferred scheme, it is circumferentially equipped with groove on the outside of the butterfly plate, is equipped with sealing ring in groove.
A kind of fool proof butterfly valve provided by the utility model limits tooth by the cooperation of locking screw and lock nut
Item 7 moves left and right, to prevent gear from being rotated, realizes the locking to valve shaft, prevents maloperation in sub- use process
Or the open/close states for causing valve shaft to rotate and changing valve are touched, realize the locking to valve.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawings and examples:
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the scheme of installation of wheel and rack；
In figure: valve body 1, valve shaft 2, butterfly plate 3, supporting case 4, handwheel 5, gear 6, rack gear 7, sliding slot 8, locking screw 9, locking
Nut 10, limit plate 11, anti-off board 12, sealing ring 13.
Specific embodiment
As shown in Figure 1 and 2, a kind of fool proof butterfly valve, including valve body 1, valve shaft 2 and butterfly plate 3, valve body 1 are equipped with for valve
The valve body hole that axis 2 passes through, valve shaft 2 are located at the connection of the part in 1 channel of valve body butterfly plate 3, are equipped with supporting case 4 on the upside of the valve body 1,
4 bottom of supporting case can be set connecting plate, connecting plate is connect by bolt with valve body 1, and supporting case 4 for valve shaft 2 equipped with passing through
Through-hole, 2 upper end of valve shaft are equipped with handwheel 5, are equipped with pitch wheel 6 and rack gear 7 in supporting case 4, gear 6 is sleeved on valve shaft 2
On, valve shaft 2 is connected by key with gear 6, and 4 inner wall of supporting case is equipped with the sliding slot 8 slided for rack gear 7, and the both ends of rack gear 7 connect lock
Determine screw rod 9,4 side wall of supporting case is equipped with the through-hole passed through for locking screw 9, and locking screw 9 is equipped with and lock far from one end of rack gear 7
Determine the lock nut 10 of the cooperation of screw rod 9.
When specifically used, valve shaft 2 is rotated by handwheel 5, so as to adjust the closed state of valve, when 3 turns of butterfly plate
It moves to certain angle, after flow reaches required flow, rotates lock nut 10, adjust lock nut 10 in locking screw 9
Position, by the way that two lock nuts 10 are resisted against 4 outside of supporting case, limitation locking screw 9 is moved left and right, to limit
Rack gear 7 moves horizontally, and since rack gear 7 is engaged with gear 6, rack gear 7 not can be carried out rotation, realizes the locking to valve.It prevents
After adjusting valve, handwheel 5 is touched due to maloperation or in narrow space, valve shaft 2 is made to rotate and change valve
Open state；Meanwhile butterfly plate 3 turns to any angle, can lock to valve, to realize to valve in any state
Under locking, be suitble to adjusting to flow.
It is set in the sliding slot 8 there are two limit plate 11, two limit plates 11 are separately positioned on the both ends of rack gear 7, limit plate
11 are equipped with the through-hole passed through for locking screw 9.
The butterfly plate 3 of butterfly valve is rotated at 0 ° ~ 90 °, realizes the closure or openness of valve, by setting limit plate 11 come
Carry out the instruction of switching signal.When 7 one end of rack gear resists one of 11 side of limit plate, valve is in the open state, by
It limits rack gear 7 in limit plate 11 to continue to rotate, so that handwheel 5 cannot continue to rotate；Handwheel 5 is rotated backward, when 7 one end of rack gear is tight
When leaning against another 11 side of limit plate, valve is in close state, and due to the position-limiting action of limit plate 11, handwheel 5 cannot be after
Continuous rotation.To guarantee that valve is completely closed or fully opened, indicative function is played to the position of the switch.
The locking screw 9 is equipped with anti-off board 12 far from one end of lock nut 10.The anti-off board 12 of setting prevents from locking
Nut 10 is detached from locking screw 9.
3 outside of butterfly plate is circumferentially equipped with groove, is equipped with sealing ring 13 in groove.Improve the sealing of butterfly plate 3 and valve body 1
Property.
The above embodiments are only the optimal technical scheme of the utility model, and are not construed as the limit for the utility model
System, the technical solution that the protection scope of the utility model should be recorded with claim, the technical solution recorded including claim
The equivalents of middle technical characteristic are protection scope.Equivalent replacement i.e. within this range is improved, also in the utility model
Protection scope within.
Claims (4)
1. a kind of fool proof butterfly valve, including valve body (1), valve shaft (2) and butterfly plate (3), valve body (1) is equipped with for valve shaft (2)
The valve body hole passed through, valve shaft (2) are located at the connection of the part in valve body (1) channel butterfly plate (3), it is characterised in that: the valve body (1)
Upside is equipped with supporting case (4), and supporting case (4) is equipped with the through-hole passed through for valve shaft (2), and valve shaft (2) upper end is equipped with handwheel (5), branch
It supports and is equipped with pitch wheel (6) and rack gear (7) in box (4), gear (6) is sleeved on valve shaft (2), supporting case (4) inner wall
Equipped with the sliding slot (8) slided for rack gear (7), the both ends of rack gear (7) connect locking screw (9), and supporting case (4) side wall is equipped with for lock
Determine the through-hole that screw rod (9) passes through, locking screw (9) is equipped with the locking spiral shell cooperated with locking screw (9) far from the one end of rack gear (7)
Female (10).
2. a kind of fool proof butterfly valve according to claim 1, it is characterised in that: there are two being set in the sliding slot (8)
Limit plate (11), two limit plates (11) are separately positioned on the both ends of rack gear (7), and limit plate (11) is equipped with for locking screw
(9) through-hole passed through.
3. a kind of fool proof butterfly valve according to claim 1, it is characterised in that: the locking screw (9) is far from lock
The one end for determining nut (10) is equipped with anti-off board (12).
4. a kind of fool proof butterfly valve according to claim 1, it is characterised in that: on the outside of the butterfly plate (3) circumferentially
Equipped with groove, sealing ring (13) are equipped in groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822137948.8U CN209213015U (en) | 2018-12-19 | 2018-12-19 | A kind of fool proof butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822137948.8U CN209213015U (en) | 2018-12-19 | 2018-12-19 | A kind of fool proof butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209213015U true CN209213015U (en) | 2019-08-06 |
Family
ID=67465171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822137948.8U Active CN209213015U (en) | 2018-12-19 | 2018-12-19 | A kind of fool proof butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209213015U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113357022A (en) * | 2020-03-05 | 2021-09-07 | 光宝电子(广州)有限公司 | Butterfly valve module, engine management system and vehicle control method |
| CN117028655A (en) * | 2023-10-07 | 2023-11-10 | 福建长远通风设备有限公司 | Locking mechanism of high leakproofness fire damper that discharges fume |
-
2018
- 2018-12-19 CN CN201822137948.8U patent/CN209213015U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113357022A (en) * | 2020-03-05 | 2021-09-07 | 光宝电子(广州)有限公司 | Butterfly valve module, engine management system and vehicle control method |
| CN117028655A (en) * | 2023-10-07 | 2023-11-10 | 福建长远通风设备有限公司 | Locking mechanism of high leakproofness fire damper that discharges fume |
| CN117028655B (en) * | 2023-10-07 | 2024-01-16 | 福建长远通风设备有限公司 | Locking mechanism of high leakproofness fire damper that discharges fume |
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| GR01 | Patent grant |