CN201757183U - Explosion-preventing slow-opening and fast-closing cut-off type motor valve - Google Patents
Explosion-preventing slow-opening and fast-closing cut-off type motor valve Download PDFInfo
- Publication number
- CN201757183U CN201757183U CN2010201631338U CN201020163133U CN201757183U CN 201757183 U CN201757183 U CN 201757183U CN 2010201631338 U CN2010201631338 U CN 2010201631338U CN 201020163133 U CN201020163133 U CN 201020163133U CN 201757183 U CN201757183 U CN 201757183U
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- explosion
- valve
- valve seat
- lifting arm
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Abstract
The utility model discloses an explosion-preventing slow-opening and fast-closing cut-off type motor valve, which comprises a valve seat, a valve seal, a lifting arm, a drive unit, a transitive gear, a unidirectional gear and a swing rod, wherein the lifting arm is arranged in the valve seat, the lower end of the valve seat is connected with the valve seal, the transitive gear is connected to the end of the output shaft of the drive unit and engaged with the unidirectional gear which has a unidirectional bearing provided therein, the bearing shaft of the unidirectional bearing is fixed on the swing rod, and the other end of the swing rod is swingingly connected to valve seat, a mating bull gear is arranged on the side of the unidirectional bearing, a screw-casing is fixedly connected to the bull gear, a guide spindle is fixedly connected on the top of the lifting arm, the other end of the guide spindle is provided with a bearing which is movably arranged on a spiral up-lifting surface, and the bearing surface of the bearing is in rolling connection with the spiral up-lifting surface of the screw-casing. The stop valve has the advantages of high reliability of opening and closing valve, fast and accurate operation, and is capable of preventing explosion and leakage of combustion gas, and lengthening the service lifetime.
Description
Technical field
The utility model relates to a kind of mainly being mounted on the intelligent gas meter, to the device that the use of pipeline gas is controlled, and particularly a kind of explosion-proof type slow opening fast shutting cut-off type motor valve.
Background technique
Existing intelligent gas meter generally all adopts the pass formula that changes down slowly with stop valve, and there is certain defective in gas meter in the market, and does not have the emergency cut-off function with complicated not enough simplification of stop valve structure.
Therefore often have many problems in use, directly adopt screw thread, gear matched to be connected as the motor and the lifting arm of stop valve, make the stop valve structure complexity, and be easy to generate stuck phenomenon when working, making valve not reach accurate control can not close fast.
Too slow disappointing easily when stop valve is closed, motor places combustion gas, and the spark high temperature that occurs when electric motor starting is lighted combustion gas easily, combustion gas is fired, have potential safety hazard, valve is also corroded in the leakage of combustion gas simultaneously easily, cause damage parts and lost efficacy reduction of service life.
Summary of the invention
The purpose of this utility model is a kind of explosion-proof type slow opening fast shutting cut-off type motor valve that provides for the deficiency that solves above-mentioned technology, and valve is steady, reliable, the pass valve is reliable and rapid thereby make out.
In order to achieve the above object, the driving mechanism of the stop valve that the utility model is designed, it comprises valve seat, jam pot cover, lifting arm, drive unit, lifting arm is arranged in the valve seat, its lower end links to each other with jam pot cover, it is characterized in that also comprising transition gear, ratchet and fork, transition gear is connected the drive unit output shaft end, and be meshed with ratchet, be provided with unilateral bearing in the ratchet, the bearing shaft of this unilateral bearing is fixedly installed on the fork, and the other end of fork is connected on the valve seat by the bearing shaft swing; The unilateral bearing side is provided with the gearwheel that matches, and is fixedly connected with screw-casing on the gearwheel; The top of lifting arm is fixedly connected with the axis of guide, and the other end of the axis of guide is provided with bearing, and bearing is removably set on the spiral raised floor, and the bearing surface of bearing is connected with the spiral raised floor rolling of screw-casing; The lifting arm the other end is fixedlyed connected with jam pot cover.
Described drive unit can be the composite set of motor and speed reducer, also can be motor or other drive units.During work,, drive the transition gear that is connected the drive unit output shaft end and rotate when drive unit just changes, ratchet is by rotating with the engagement of transition gear, fork is flapped toward gearwheel, makes ratchet and gearwheel engagement on the fork, drives gearwheel and rotates, screw-casing rotation when gearwheel rotates, bearing along with the rotation of screw-casing to helicoid, drive the axis of guide and rise, lifting arm is risen, thereby drive jam pot cover and leave valve port, finish out valve.When the drive unit counter-rotating, the driven gear transmission makes the fork pendulum from gearwheel, and the ratchet on the fork is thrown off gearwheel, thereby lifting arm and jam pot cover are descended rapidly under the deadweight effect, finishes the pass valve.
As being provided with plane bearing in the preferred described transition gear, be provided with the bearing shaft that matches in the plane bearing, this bearing shaft lower end is arranged on the fork simultaneously, and fork is connected with the valve seat swing by this bearing shaft.
As further scheme, can be provided with spring on the described jam pot cover, lifting arm passes spring fixedlys connected with jam pot cover, the flange that the spring the other end is fixed in the valve seat puts, the pressure that lifting arm drive jam pot cover rose when this spring can utilize out valve compresses, make that jam pot cover not only descends under the self gravitation effect at lifting arm and jam pot cover when closing valve, more utilize rebounding force after the length of spring compressed allow jam pot cover close port more fast, reach the purpose that speed is closed.
Motor is an explosion-proof type coiling armature permanent magnet DC motor.
The resulting explosion-proof type slow opening fast shutting of the utility model cut-off type motor valve, because after motor is oppositely switched on, the driven gear transmission, fork at the effect bottom of unilateral bearing from gearwheel, lifting arm and jam pot cover descend rapidly under the elastic force effect of self gravitation and spring, and jam pot cover covers valve port can finish fast quick-closing valve.Lifting arm is lived in being connected with screw-casing by the axis of guide and bearing stop valve is rotated flexibly at work, is not prone to stuck phenomenon, drives valve steadily, reliably, closes valve reliably, quick and precisely.And valve driving machine adopts is anti-explosion motor, has avoided machine operation to produce spark and has caused gas explosion.And the quick closedown of stop valve has prevented that also combustion gas from leaking, and has increased the life-span of part.
Description of drawings
Fig. 1 is an explosion-proof type slow opening fast shutting cut-off type motor valve shaft side figure of the present utility model.
Fig. 2 is the sectional view of embodiment's 1 explosion-proof type slow opening fast shutting cut-off type motor valve.
Fig. 3 is the sectional view of embodiment's 2 explosion-proof type slow opening fast shutting cut-off type motor valves.
Fig. 4 is the partial sectional view of embodiment's 2 explosion-proof type slow opening fast shutting cut-off type motor valves.
Wherein: motor 1, speed reducer 2, transition gear 3, plane bearing 4, fork 5, transition gear axle 6, ratchet 7, unilateral bearing 8, unilateral bearing axle 9, gearwheel 10, screw-casing 11, lifting arm 12, the axis of guide 13, bearing 14, cover plate 15, flange cover 16, spring 17, jam pot cover 18.
Embodiment
The utility model will be further described in conjunction with the accompanying drawings below by embodiment.
As shown in Figure 2, the utility model relates to a kind of explosion-proof type slow opening fast shutting cut-off type motor valve, comprise valve seat, jam pot cover, lifting arm, drive unit, lifting arm is arranged in the valve seat, its lower end links to each other with jam pot cover, described drive unit is the composite set of motor 1 and speed reducer 2, it is characterized in that also comprising transition gear 3, ratchet 7 and fork 5, transition gear 3 is connected the drive unit output shaft end, and is meshed with ratchet 7, is provided with unilateral bearing 8 in the ratchet 7, the unilateral bearing axle 9 of this unilateral bearing 8 is fixedly installed on the fork 5, and the swing of the other end of fork 5 is connected on the valve seat; Unilateral bearing 8 sides are provided with the gearwheel 10 that matches, and are fixedly connected with screw-casing 11 on the gearwheel 10; The top of described lifting arm 12 is fixedly connected with the axis of guide 13, the other end of this axis of guide 13 is provided with bearing 14, bearing 14 is removably set on the spiral raised floor, and the spiral raised floor of the bearing surface of bearing 14 and screw-casing 11 rolls and be connected, and the lower end of lifting arm 12 is fixed with jam pot cover 18.
During work, when drive unit just changes, the transition gear 3 that drive is connected the drive unit output shaft end rotates, ratchet 7 is by rotating with the engagement of transition gear 3, fork 5 is flapped toward gearwheel 10, make ratchet 7 and gearwheel 10 engagements on the fork 5, driving gearwheel 10 rotates, screw-casing 11 rotations when gearwheel 10 rotates, bearing 14 drives the axis of guide 13 and rises along with the rotation of screw-casing 11 is rolled to the helicoid rising portion, and lifting arm 12 is risen, thereby drive jam pot cover 18 and leave valve port, finish out valve.When the drive unit counter-rotating, drive transition gear 3 transmissions, make fork 5 pendulum from gearwheel 10, the ratchet 7 on the fork 5 is thrown off gearwheel 10, thereby lifting arm 12 and jam pot cover 18 are descended rapidly under the deadweight effect, finishes the pass valve.
A kind of explosion-proof type slow opening fast shutting cut-off type motor valve provided by the utility model has solved the requirement of gas meter to the valve emergency cut-off well, and simultaneously, it is opened, and valve is steady, reliable, electric current is little, closes valve reliably and rapidly; Reliable in function, compact structure, work is flexibly explosion-proofly anti-ly let out long service life.
As Fig. 3, shown in 4, the utility model relates to a kind of explosion-proof type slow opening fast shutting cut-off type motor valve, comprise valve seat, jam pot cover, lifting arm, drive unit, lifting arm is arranged in the valve seat, its lower end links to each other with jam pot cover, described drive unit is the composite set of motor 1 and speed reducer 2, it is characterized in that also comprising transition gear 3, ratchet 7 and fork 5, transition gear 3 is connected the drive unit output shaft end, and be meshed with ratchet 7, a plane bearing 4 is arranged at the endoporus bottom of transition gear 3, the cylindrical of plane bearing 4 and transition gear 3 closely cooperate, and fork 5 is connected on the valve seat with 6 swings of transition gear axle, and are provided with unilateral bearing 8 in the ratchet 7 that transition gear 3 is meshed, the unilateral bearing axle 9 of this unilateral bearing 8 is fixedly installed on the fork 5, and the swing of the other end of fork 5 is connected on the valve seat; Unilateral bearing 8 sides are provided with the gearwheel 10 that matches, and are fixedly connected with screw-casing 11 on the gearwheel 10; The top of described lifting arm 12 is fixedly connected with the axis of guide 13, the other end of this axis of guide 13 is provided with bearing 14, bearing 14 is removably set on the spiral raised floor, and the bearing surface of bearing 14 rolls with the spiral raised floor of screw-casing 11 and is connected, lifting arm 12 the other ends pass cover plate 15, flange cover 16 and spring 17, and the bottom is connected with jam pot cover 18.
During work, when drive unit just changes, the transition gear 3 that drive is connected the drive unit output shaft end rotates, ratchet 7 is by rotating with the engagement of transition gear 3, fork 5 is flapped toward gearwheel 10, make ratchet 7 and gearwheel 10 engagements on the fork 5, driving gearwheel 10 rotates, screw-casing 11 rotations when gearwheel 10 rotates, bearing 14 drives the axis of guide 13 and rises along with the rotation of screw-casing 11 is rolled to the helicoid rising portion, and lifting arm 12 is risen, thereby drive jam pot cover 18 and leave valve port, finish out valve; At this moment, spring 17 places and compressive state.When the drive unit counter-rotating, drive transition gear 3 transmissions, make fork 5 pendulum from gearwheel 10, ratchet 7 on the fork 5 is thrown off gearwheel 10, and at this moment, lifting arm 12 and jam pot cover 18 descend rapidly under the elastic force effect of self gravitation and spring 17, bearing 14 also rolls to the lower of helicoid fast, when jam pot cover 18 covered valve port, the pass valve was finished in bearing 14, lifting arm 12 stop motions.
A kind of explosion-proof type slow opening fast shutting cut-off type motor valve provided by the utility model has solved the requirement of gas meter to the valve emergency cut-off well, and simultaneously, it is opened, and valve is steady, reliable, electric current is little, closes valve reliably and rapidly; Reliable in function, compact structure, work is flexibly explosion-proofly anti-ly let out long service life; And as further preferred version, this cut-off type motor valve is the purpose that reaches the pass valve of quick and stable more, effectively explosion-proof anti-letting out.
Claims (5)
1. explosion-proof type slow opening fast shutting cut-off type motor valve, it comprises valve seat, jam pot cover, lifting arm, drive unit, lifting arm is arranged in the valve seat, its lower end links to each other with jam pot cover, it is characterized in that also comprising transition gear, ratchet and fork, and transition gear is connected the drive unit output shaft end, and be meshed with ratchet, be provided with unilateral bearing in the ratchet, the bearing shaft of this unilateral bearing is fixedly installed on the fork, and the other end swing of fork is connected on the valve seat; The unilateral bearing side is provided with the gearwheel that matches, and is fixedly connected with screw-casing on the gearwheel; The top of described lifting arm is fixedly connected with the axis of guide, and the other end of this axis of guide is provided with bearing, and bearing is removably set on the spiral raised floor, and the bearing surface of bearing is connected with the spiral raised floor rolling of screw-casing.
2. explosion-proof type slow opening fast shutting cut-off type motor valve according to claim 1, it is characterized in that being provided with plane bearing in the described transition gear, be provided with the bearing shaft that matches in the plane bearing, this bearing shaft lower end is arranged on the fork simultaneously, and fork is connected with the valve seat swing by this bearing shaft.
3. explosion-proof type slow opening fast shutting cut-off type motor valve according to claim 1 and 2, it is characterized in that described jam pot cover is provided with spring, lifting arm passes spring fixedlys connected with jam pot cover, is provided with the flange cover in the valve seat, and the flange that the spring the other end is fixed in the valve seat puts.
4. explosion-proof type slow opening fast shutting cut-off type motor valve according to claim 1 and 2, it is characterized in that: motor is an explosion-proof type coiling armature permanent magnet DC motor.
5. explosion-proof type slow opening fast shutting cut-off type motor valve according to claim 3, it is characterized in that: motor is an explosion-proof type coiling armature permanent magnet DC motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201631338U CN201757183U (en) | 2010-04-19 | 2010-04-19 | Explosion-preventing slow-opening and fast-closing cut-off type motor valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201631338U CN201757183U (en) | 2010-04-19 | 2010-04-19 | Explosion-preventing slow-opening and fast-closing cut-off type motor valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201757183U true CN201757183U (en) | 2011-03-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201631338U Expired - Lifetime CN201757183U (en) | 2010-04-19 | 2010-04-19 | Explosion-preventing slow-opening and fast-closing cut-off type motor valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201757183U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546187A (en) * | 2015-12-30 | 2016-05-04 | 金卡高科技股份有限公司 | Built-in flow control mechanism of gas meter |
| CN114183576A (en) * | 2022-02-14 | 2022-03-15 | 杭州先锋电子技术股份有限公司 | Electric valve with double transmission mechanisms |
| CN114215923A (en) * | 2021-12-17 | 2022-03-22 | 油威力液压科技股份有限公司 | High-flow plug-in electro-hydraulic servo valve with valve core in combination of horizontal rotation |
-
2010
- 2010-04-19 CN CN2010201631338U patent/CN201757183U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546187A (en) * | 2015-12-30 | 2016-05-04 | 金卡高科技股份有限公司 | Built-in flow control mechanism of gas meter |
| CN114215923A (en) * | 2021-12-17 | 2022-03-22 | 油威力液压科技股份有限公司 | High-flow plug-in electro-hydraulic servo valve with valve core in combination of horizontal rotation |
| CN114215923B (en) * | 2021-12-17 | 2024-04-12 | 油威力液压科技股份有限公司 | Large-flow plug-in electrohydraulic servo valve with valve core combined in horizontal rotation mode |
| CN114183576A (en) * | 2022-02-14 | 2022-03-15 | 杭州先锋电子技术股份有限公司 | Electric valve with double transmission mechanisms |
| CN114183576B (en) * | 2022-02-14 | 2022-04-26 | 杭州先锋电子技术股份有限公司 | Electric valve with double transmission mechanisms |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110309 |
|
| CX01 | Expiry of patent term |