CN205350502U - Valve drive closes and booster quick action emergency valve thereof - Google Patents
Valve drive closes and booster quick action emergency valve thereof Download PDFInfo
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- CN205350502U CN205350502U CN201620039503.4U CN201620039503U CN205350502U CN 205350502 U CN205350502 U CN 205350502U CN 201620039503 U CN201620039503 U CN 201620039503U CN 205350502 U CN205350502 U CN 205350502U
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Abstract
The utility model relates to a valve device technical field discloses a valve drive closes and booster quick action emergency valve thereof. It includes that support mainboard, one end are equipped with the movement weight rod of weight and set up buffering subassembly, movement weight rod stop device and the stop pin axle on the support mainboard to close valve drive, the support mainboard is connected with the valve body, the weight end valve hub connection of drive switch valve on the other end of movement weight rod and the valve body, the buffering subassembly is articulated with the middle part of movement weight rod, movement weight rod stop device respectively with stop pin axle and movement weight rod on the whereabouts and the location of weight lever pin shaft fit control weight. The utility model discloses a pure machinery is relied on oneself to drive and is closed the valve actuation work, and simple structure is reliable, maintains portably. Adopt the falling speed of buffering component control weight, prevent to produce pass valve water hammer.
Description
Technical field
The present invention relates to valve arrangement technical field, close valve drive and booster quick action emergency valve thereof in particular it relates to a kind of.
Background technology
In various Long-distance Water Transmission Pipeline, due to system self problem or exterior mechanical plant issue, it may occur that pipe explosion accident.If there is no quick action emergency valve, when, after pipeline generation booster, booster place sluices in a large number, causes water logging accident, it is likely to time serious injure personal safety and financial losses.Meanwhile, cause the flex point place near booster to form instantaneous fine vacuum because super-flow sluices, cause pipe negative pressure unstability.Secondly, when pipe explosion accident occurs, the closedown that stop valve can not be too fast, otherwise will easily produce to close valve water hammer, and cause secondary to destroy in pipeline, and so that control the speed of emergency cut-off, reduce current loss Slow Close simultaneously to greatest extent and produce without water hammer.
Pass valve drive many employings fluid power system of existing booster quick action emergency valve or Electric control drive system etc. carry out switch valve action.Once hydraulic circuit or circuit break down, the reliability of valve will be affected, and it will be fast to close valve speed, it is easy to produce to close valve water hammer, cause secondary to destroy in pipeline.
Summary of the invention
Present invention solves the technical problem that the defect being in that to overcome prior art, it is provided that a kind of structure is reliable, can prevent the pass valve drive of water hammer.
Another object of the present invention is to provide a kind of booster quick action emergency valve being provided with described pass valve drive.
The object of the invention is achieved through the following technical solutions:
A kind of close that valve drive includes support mainboard, one end is provided with the movement weight rod of weight and the Buffer Unit being arranged on support mainboard, movement weight rod stopping means and locking bearing pin；Described support mainboard is connected with valve body, and the other end of described movement weight rod is connected with the weight end valve axle driving switch valve on valve body；Described Buffer Unit is hinged with the middle part of movement weight rod；Described movement weight rod stopping means coordinates the whereabouts and location that control weight respectively with the movement weight rod bearing pin on locking bearing pin and movement weight rod.
When there is the accidents such as booster, the flow rate of water flow in pipeline raises extremely, and the detection of flow rate detection mechanism obtains detection signal and then the locking relation of unlocked by force transmission mechanism bearing pin and movement weight rod stopping means.The process of weight drop drives weight end valve axle rotate 90 °, and then valve body is closed by drive valve plate assembly.In weight drop process, Buffer Unit serves the speed effect controlling weight drop, controls the shut-in time, it is to avoid produce to close valve water hammer.Recovering after normally at pipeline, recover normal water supply by opening butterfly valve, weight rises under the driving of weight end valve axle simultaneously, closes valve drive and stop pin shaft locking.
Further, described support mainboard is connected with bearing pin support, and locking bearing pin is arranged on bearing pin support.Described bearing pin support is U-shaped frame, and the two ends of locking bearing pin are arranged at the sidewall of U-shaped frame.
Further, the one end of described locking bearing pin is provided with bearing pin lining；It is provided with in described bearing pin lining and locks the spring that bearing pin coordinates.Spring in described bearing pin lining contributes to locking bearing pin and ejects reset.
Further, being additionally provided with lining pressing plate between described support mainboard and stop pin bracing strut, described bearing pin lining is connected with lining pressing plate and support mainboard.Described lining pressing plate has the effect of the parts such as protection locking bearing pin, simultaneously facilitates the installation of bearing pin lining.
Further, described support mainboard is fixing with the axle bed flange of the weight end valve axle of valve body is connected.
Further, described Buffer Unit is hydraulic cylinder component, and the piston rod of described hydraulic cylinder component is hinged with the middle part of movement weight rod.The speed of weight drop can be controlled by hydraulic cylinder component, and then control the closing valve time of butterfly valve, it is prevented that produce to close valve water hammer.
Further, described hydraulic cylinder component also includes the hydraulic oil flow control valve that is arranged on return line.Described hydraulic flow control valve can regulate the flow that hydraulic oil passes through, thus regulating cut-out closing valve time.
Further, described movement weight rod stopping means includes chute cam, rotating disk, rotating disk bearing pin, weight fixture block；Described chute cam includes the hook portion matched with locking bearing pin being located at chute cam edge, the chute being radially arranged along chute cam limiting the motion of described rotating disk bearing pin；Described chute cam is connected with wheel disc, being arranged on support mainboard centrally through bearing pin of described wheel disc；Described rotating disk be located on support mainboard centrally through bearing pin, described rotating disk be radially provided with through hole, one end of described rotating disk bearing pin is fixed on through hole, and the other end coordinates with described chute；Described weight fixture block is connected with rotating disk, weight fixture block be radially provided with the bayonet socket matched with movement weight rod bearing pin.Described counterweight limit device has simple in construction, safe and reliable advantage.
For the ease of movement weight rod bearing pin and bayonet fittings, further, the opening part of described bayonet socket is provided with chamfering.
Further, described support mainboard is additionally provided with the second locating part that restriction movement weight rod excessively rotates.When butterfly valve carries out emergency cut-off, weight drop, after movement weight rod half-twist, will contact in the second locating part, it is to avoid after the valve plate contract fully of butterfly valve puts in place, the rubber seal of excessive compression valve plate under the effect of weight and cause damage.
Further, described second locating part includes the bolt being threaded the contiguous block in hole, nut and screwed hole and nut screw connection that is arranged on support mainboard.Coordinated with contiguous block by bolt, needed for scalable, be sized to compensate for manufacturing and positioning errors.
In order to increase and the contact surface of the second locating part, further, described movement weight rod is provided with the projection coordinated with bolt.
A kind of booster quick action emergency valve being provided with described pass valve drive.
Further, described valve body is butterfly valve or ball valve etc..
Further, described booster quick action emergency valve is additionally provided with flow rate detection mechanism and force transmission mechanism etc..
Compared with prior art, the method have the advantages that
The simple in construction of pass of the present invention valve drive and booster quick action emergency valve, reliable.Purely mechanic driving of relying on oneself is adopted to close valve events, simple and reliable for structure, easy maintenance.
The present invention adopts Buffer Unit to control the falling speed of weight, and then regulates closing valve time, it is prevented that produces water hammer, causes secondary to destroy.
Accompanying drawing explanation
Fig. 1 is the structural representation of described booster quick action emergency valve；
Fig. 2 is the structural representation of described butterfly valve；
Fig. 3 is the structural representation of described pass valve drive；
Fig. 4 is the structural representation of described force transmission mechanism；
Fig. 5 is the structural representation of force transmission mechanism protective cover；
Fig. 6 is the structural representation of described movement weight rod stopping means.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is further illustrated.Wherein, being merely cited for property of accompanying drawing illustrates, expression is only schematic diagram, but not pictorial diagram, it is impossible to it is interpreted as the restriction to this patent；In order to embodiments of the invention are better described, some parts of accompanying drawing have omission, zoom in or out, and do not represent the size of actual product；It will be understood by those skilled in the art that some known features and explanation thereof are likely to omission and will be understood by accompanying drawing.
Embodiment 1
As it is shown in figure 1, a kind of booster quick action emergency valve, including butterfly valve 1, flow rate detection mechanism 2, force transmission mechanism 3 and pass valve drive 4；
As in figure 2 it is shown, butterfly valve 1 include valve body 11, valve board assembly 12, weight end valve axle 13, for opening the manual worm gear case 14 of valve board assembly 12.Weight end valve axle 13 is connected with one end of valve board assembly 12, and manual worm gear case 14 is connected with the other end of valve board assembly 12 by worm gear case valve shaft (not shown).
As it is shown on figure 3, close the movement weight rod 43 and the Buffer Unit 44 being arranged on support mainboard 41, movement weight rod stopping means 45 and locking bearing pin 46 that valve drive 4 includes support mainboard 41, one end is provided with weight 42；Support mainboard 41 is connected with valve body 11.Weight end valve axle 13 is connected with the other end of movement weight rod 43；Buffer Unit 44 is hinged with the middle part of movement weight rod 43；Movement weight rod stopping means 45 coordinates the whereabouts and location that control weight 42 respectively with the movement weight rod bearing pin 431 on locking bearing pin 46 and movement weight rod 43.
When there is the accidents such as booster, the flow rate of water flow in pipeline raises extremely, and the detection of flow rate detection mechanism obtains detection signal and then the locking relation of unlocked by force transmission mechanism bearing pin and movement weight rod stopping means.The process of weight drop drives weight end valve axle rotate 90 °, and then butterfly valve cuts out by drive valve plate assembly.In weight drop process, Buffer Unit serves the speed effect controlling weight drop, controls the shut-in time, it is to avoid produce water hammer.Recovering after normally at pipeline, can open butterfly valve by rotary manual worm gear case, recover normal water supply, weight rises under the driving of weight end valve axle simultaneously, closes valve drive and stop pin shaft locking.
As shown in Figure 4, force transmission mechanism 3 includes being connected with flow rate detection mechanism dowel steel 31, connecting rod 32, quarter crank 33.Dowel steel 31 is connected with one end of connecting rod 32 by articulated elements.Quarter crank 33 rotates around fixed center axis 331, and its one end is connected with locking bearing pin 46 respectively, and the other end is hinged with connecting rod 32.Flow rate detection mechanism active force is delivered to dowel steel 31, and dowel steel 31 transfers the force to locking bearing pin 46 by connecting rod 32 and quarter crank 33, it is achieved the motion of locking bearing pin 46.
Specifically, articulated elements includes the driving link 341 being connected with dowel steel 31 and the driven member 342 being connected with connecting rod 32.Driving link 341 be axially provided with 3 hinge point 343.The hinge point 343 of driving link 341 or driven member 342 can select according to the length of parts such as connecting rod 32 or the size of active force, so that meeting transmission requirement.
Support mainboard 41 is connected with bearing pin support 461, and locking bearing pin 46 is arranged on bearing pin support 461.Fixed center axis 331 is connected with bearing pin support 461.Further, bearing pin support 461 is U-shaped frame, and the two ends of locking bearing pin 46 are arranged at the sidewall of U-shaped frame, and fixed center axis 331 is connected with the base plate of U-shaped frame.
The one end of locking bearing pin 46 is provided with groove 462, and the other end is provided with bearing pin lining 463.One end of quarter crank 33 coordinates with groove 462.It is provided with in bearing pin lining 463 and locks the spring that bearing pin 46 coordinates.Spring in bearing pin lining 463 contributes to locking bearing pin 46 and ejects reset.
Lining pressing plate 464 it is additionally provided with between support mainboard 41 and bearing pin support 461.Bearing pin lining 463 is connected with lining pressing plate 464 and support mainboard 41.Lining pressing plate 464 has the effect of the protection locking parts such as bearing pin 46 and quarter crank 33, simultaneously facilitates the installation of bearing pin lining 463.
Support mainboard 41 is fixing with the axle bed flange 131 of the weight end valve axle 13 of butterfly valve 1 to be connected.
Buffer Unit 44 is hydraulic cylinder component, and the piston rod 442 of hydraulic cylinder component is hinged with the middle part of movement weight rod 43.Can control, by hydraulic cylinder component, the speed that weight 42 falls, and then control the closing valve time of butterfly valve, it is prevented that produce to close valve water hammer.
Hydraulic cylinder component also includes the hydraulic oil flow control valve 441 being arranged on return line.Hydraulic flow control valve 441 can regulate the cushion effect of hydraulic jack, to adapt to different application condition.
As shown in Figure 6, movement weight rod stopping means 45 includes chute cam 451, rotating disk 452, rotating disk bearing pin 453, weight fixture block 454.Chute cam 451 includes the chute 4513 being radially arranged along chute cam 451 being located at the hook portion 4512 matched with locking bearing pin 46 of chute cam edge, restriction rotating disk bearing pin 453 motion.Chute cam 451 is connected with wheel disc 455, being arranged on support mainboard 41 centrally through bearing pin of wheel disc 455.Rotating disk 452 be located on support mainboard 41 centrally through bearing pin, rotating disk 452 be radially provided with through hole, one end of rotating disk bearing pin 453 is fixed on through hole, and the other end coordinates with chute 4513.Weight fixture block 454 is connected with rotating disk 452, weight fixture block 454 be radially provided with the bayonet socket 4541 matched with movement weight rod bearing pin 431.Counterweight limit device 45 has simple in construction, safe and reliable advantage.
Coordinating with bayonet socket 4541 for the ease of movement weight rod bearing pin 431, the opening part of bayonet socket 4541 is provided with chamfering.
Support mainboard 41 is additionally provided with the second locating part 47 that restriction movement weight rod 43 excessively rotates.When butterfly valve 1 carries out emergency cut-off, weight 42 falls, and after movement weight rod 43 half-twist, will contact in the second locating part 47, it is to avoid after the valve plate contract fully of butterfly valve 1 puts in place, the rubber seal of excessive compression valve plate under the effect of weight 42 and cause damage.
Second locating part 47 includes the bolt 473 being arranged on the contiguous block 471 being threaded hole of support mainboard 41, nut 472 and screwed hole and nut screw connection.Coordinated with contiguous block 471 by bolt 473, the size needed for scalable.
In order to increase and the contact surface of the second locating part 47, movement weight rod 43 is provided with the projection coordinated with bolt 473.
As it is shown in figure 5, booster quick action emergency valve is additionally provided with for protecting force transmission mechanism 3 and the protective cover 35 of locking bearing pin 46.
Obviously, above-described embodiment is only for clearly demonstrating technical scheme example, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also cannot all of embodiment be given exhaustive.All any amendment, equivalent replacement and improvement etc. made within the spirit and principles in the present invention, should be included within the protection domain of the claims in the present invention.
Claims (10)
1. one kind closes valve drive, it is characterised in that include support mainboard, one end is provided with movement weight rod and the Buffer Unit being arranged on support mainboard, the movement weight rod stopping means of weight and locks bearing pin；Described support mainboard is connected with valve body, and the other end of described movement weight rod is connected with the weight end valve axle driving switch valve on valve body；Described Buffer Unit is hinged with the middle part of movement weight rod；Described movement weight rod stopping means coordinates the whereabouts and location that control weight respectively with the movement weight rod bearing pin on locking bearing pin and movement weight rod.
2. close valve drive according to claim 1, it is characterised in that described support mainboard is fixing with the axle bed flange of the weight end valve axle of valve body to be connected.
3. closing valve drive according to claim 1, it is characterised in that described Buffer Unit is hydraulic cylinder component, the piston rod of described hydraulic cylinder component is hinged with the middle part of movement weight rod.
4. close valve drive according to claim 3, it is characterised in that described hydraulic cylinder component also includes the hydraulic oil flow control valve being arranged on return line.
5. close valve drive according to claim 1, it is characterised in that described movement weight rod stopping means includes chute cam, rotating disk, rotating disk bearing pin, weight fixture block；Described chute cam includes the hook portion matched with locking bearing pin being located at chute cam edge, the chute being radially arranged along chute cam limiting the motion of described rotating disk bearing pin；Described chute cam is connected with wheel disc, being arranged on support mainboard centrally through bearing pin of described wheel disc；Described rotating disk be located on support mainboard centrally through bearing pin, described rotating disk be radially provided with through hole, one end of described rotating disk bearing pin is fixed on through hole, and the other end coordinates with described chute；Described weight fixture block is connected with rotating disk, weight fixture block be radially provided with the bayonet socket matched with movement weight rod bearing pin.
6. close valve drive according to claim 5, it is characterised in that the opening part of described bayonet socket is provided with chamfering.
7. close valve drive according to claim 1, it is characterised in that described support mainboard is additionally provided with the second locating part that restriction movement weight rod excessively rotates.
8. close valve drive according to claim 7, it is characterised in that described second locating part includes the bolt being threaded the contiguous block in hole, nut and screwed hole and nut screw connection being arranged on support mainboard.
9. close valve drive according to claim 8, it is characterised in that described movement weight rod is provided with the projection coordinated with bolt.
10. one kind is provided with the booster quick action emergency valve closing valve drive described in claim 1 ~ 9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620039503.4U CN205350502U (en) | 2016-01-18 | 2016-01-18 | Valve drive closes and booster quick action emergency valve thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620039503.4U CN205350502U (en) | 2016-01-18 | 2016-01-18 | Valve drive closes and booster quick action emergency valve thereof |
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| Publication Number | Publication Date |
|---|---|
| CN205350502U true CN205350502U (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620039503.4U Active CN205350502U (en) | 2016-01-18 | 2016-01-18 | Valve drive closes and booster quick action emergency valve thereof |
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| Country | Link |
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| CN (1) | CN205350502U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508690A (en) * | 2016-01-18 | 2016-04-20 | 株洲南方阀门股份有限公司 | Valve-closure drive device and emergency burst pipe cut-off valve thereof |
| CN105972231A (en) * | 2016-07-05 | 2016-09-28 | 天津国际机械有限公司 | Heavy punch butterfly valve closing angle adjustor with spring buffering structure |
-
2016
- 2016-01-18 CN CN201620039503.4U patent/CN205350502U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508690A (en) * | 2016-01-18 | 2016-04-20 | 株洲南方阀门股份有限公司 | Valve-closure drive device and emergency burst pipe cut-off valve thereof |
| CN105508690B (en) * | 2016-01-18 | 2018-10-30 | 株洲南方阀门股份有限公司 | A kind of pass valve drive and its booster quick action emergency valve |
| CN105972231A (en) * | 2016-07-05 | 2016-09-28 | 天津国际机械有限公司 | Heavy punch butterfly valve closing angle adjustor with spring buffering structure |
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| GR01 | Patent grant |