CN205331447U - Velocity of flow detection mechanism and booster quick action emergency valve thereof - Google Patents
Velocity of flow detection mechanism and booster quick action emergency valve thereof Download PDFInfo
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- CN205331447U CN205331447U CN201620039504.9U CN201620039504U CN205331447U CN 205331447 U CN205331447 U CN 205331447U CN 201620039504 U CN201620039504 U CN 201620039504U CN 205331447 U CN205331447 U CN 205331447U
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- flow rate
- detection arm
- rate detection
- velocity
- detection mechanism
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Abstract
The utility model relates to a valve device technical field discloses a velocity of flow detection mechanism and booster quick action emergency valve thereof. Velocity of flow detection mechanism includes the adjusting device of nozzle stub, the one end that feeds through with the infusion pipeline and the nozzle stub middle part feeds through and the other end is sealed measuring branch pipe, velocity of flow detection arm and change velocity of flow detection range, the upper portion of detecting the branch pipe is equipped with the axle bed, axle bed and detection arm counter roll swing joint, and velocity of flow detection arm's sense terminal sets up in the nozzle stub, velocity of flow detection arm's top and detection arm counter roll fixed connection, an adjusting device and a detection arm hub connection. The booster quick action emergency valve includes that the butterfly valve still is equipped with power transmission element and connects, and power transmission element includes dowel steel, connecting rod, right angle crank with shaft coupling fixed connection. Flow detection mechanism simple structure, pure mechanical type detection mode, the testing result is reliable, converts the change of the velocity of flow into moment and exports for outside mechanism, can realize the control of valve with the cooperation of multiple outside mechanism.
Description
Technical field
The present invention relates to valve arrangement technical field, in particular it relates to a kind of flow rate detection mechanism and booster quick action emergency valve thereof。
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。
The flow rate detection mechanism majority of existing booster quick action emergency valve adopts the electromagnetic electronic elements such as sensor, such as ultrasonic sensor etc.。Owing to the situation of usual pipeline burst is less, booster quick action emergency valve does not use generally for a long time, and has and be installed on comparatively remote area, and therefore existing flow rate detection mechanism often lacks maintenance and damages or malfunctioning, once accident occurs to timely respond to。And existing flow sensor needs power supply etc. to maintain running, too increase cost and maintenance difficulties etc.。
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, flow resistance is little, the flow rate detection mechanism of Purely mechanical。
Another object of the present invention is to provide a kind of booster quick action emergency valve being provided with described flow rate detection mechanism。
The object of the invention is achieved through the following technical solutions:
A kind of flow rate detection mechanism include with the short tube that liquid-transport pipe-line connects, one end and connect in the middle part of short tube and the other end seal detection arm, flow rate detection arm and change flow rate detection scope adjustment device；The top of described detection arm is provided with axle bed, and described axle bed is flexibly connected with detection arm fulcrum, and the test side of described flow rate detection arm is arranged in short tube, and the top of described flow rate detection arm is fixing with detection arm fulcrum to be connected；Described adjustment device is connected with detection arm fulcrum。
When pipeline normal water supply, the test side of flow velocity detection arm is formed impulsive force by current, promotes flow rate detection arm to swing in certain amplitude, and the more fast amplitude of fluctuation of flow rate of water flow is more big。When if it occur that during the accidents etc. such as booster, the flow rate of water flow in pipeline is abnormal to be raised, when the amplitude of fluctuation of flow rate detection arm reaches preset value, the dynamic detection arm fulcrum of flow rate detection arm straps is significantly around axial-rotation。The axial-rotation of detection arm fulcrum and then external agency can be driven to transmit out by flow velocity abnormal conditions。Described adjustment device can arrange the water flow impact pressure needed for flow rate detection arm swing according to the application scenario of flow rate detection mechanism, to provide more application scenario。
For the ease of being connected with adjustment device and transmit the moment of detection arm fulcrum, and prevent flow rate detection arm from significantly swinging and touching detection arm, cause damage, further, one end of described detection arm fulcrum is provided with shaft coupling, described shaft coupling is provided with the locating part of restriction detection arm fulcrum axial-rotation angle, and the outer wall of described detection arm is provided with the spacing bearing pin matched with locating part。
Further, described locating part is the groove on shaft coupling, is arranged at screwed hole symmetrical on the sidewall of described groove and the bolt supporting with screwed hole；One end of described spacing bearing pin is between bolt。Distance between described bolt scalable and spacing bearing pin, and then define the rotational angle of shaft coupling, i.e. the amplitude of fluctuation of flow rate detection arm。
Further, described adjustment device includes regulating lever and slide block；Described slide block is arranged at the two ends regulating lever；Described adjustment lever is provided with scale, and the middle part of described adjustment lever is connected by shaft coupling and detection arm fulcrum are fixing。Described adjustment device, by controlling to adjust the slide block at lever two ends, regulates flow rate detection arm swing amplitude and reaches preset value。
Further, described flow rate detection arm includes pole and test side, and described test side is the baffle plate being arranged on pole bottom, and the top of described pole is fixing with detection arm fulcrum to be connected。Flow velocity variation is made direct response by described flow rate detection arm so that detection is more quick, and result is relatively reliable。
In order to prevent foreign material from encountering shaft coupling, regulating the parts such as device, causing butterfly valve misoperation, further, the top of described detection arm is provided with protection and regulates the protection board of device and force transmission mechanism。
A kind of booster quick action emergency valve being provided with described flow rate detection mechanism。The short tube of described flow rate detection mechanism connects with butterfly valve or ball valve。
Further, described in be provided with the booster quick action emergency valve of flow rate detection mechanism and be additionally provided with force transmission mechanism and connect, described force transmission mechanism include fixing with shaft coupling be connected dowel steel, connecting rod, quarter crank；Described dowel steel is connected with one end of connecting rod by articulated elements；Described quarter crank rotates around fixed center axis, and its one end is connected with executive item respectively, and the other end is hinged with connecting rod。The active force of described detection arm fulcrum is delivered to dowel steel by shaft coupling, and dowel steel transfers the force to executive item by connecting rod and quarter crank, it is achieved the motion of executive item。Described executive item is locking bearing pin etc.。
Further, what described articulated elements included the driving link being connected with dowel steel and the driven member being connected with connecting rod, described driving link or driven member is axially provided with at least one hinge point。The hinge point of described driving link or driven member can select according to the size of the length of the parts such as connecting rod or active force, so that meeting transmission requirement。
Further, described booster quick action emergency valve is additionally provided with the protective cover for protecting dowel steel, connecting rod, quarter crank and executive item。
Compared with prior art, the method have the advantages that
Flow process testing agency of the present invention simple in construction, Purely mechanical detection mode, testing result is reliable, the change of flow velocity is converted to moment and exports to external agency, can coordinate, with multiple external agency, the control realizing valve。
Described adjustment device can arrange the water flow impact pressure needed for flow rate detection arm swing according to the application scenario of flow rate detection mechanism, to provide more application scenario。It is provided with the protection mechanisms such as locating part, flow velocity detection arm has been carried out effective protection。
Described booster quick action emergency valve adopts mechanical detection water flow variation, and by mechanical type, testing result passes to executive item, stable and reliable operation。
Accompanying drawing explanation
Fig. 1 is the structural representation of described booster quick action emergency valve；
Fig. 2 is the sectional view of described flow rate detection mechanism；
Fig. 3 is the structural representation of described flow rate detection mechanism；
Fig. 4 is the structural representation of described shaft coupling；
Fig. 5 is the structural representation of described force transmission mechanism；
Fig. 6 is the structural representation of force transmission mechanism protective cover。
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 shown in Figures 2 and 3, short tube 21, one end and the adjustment device 24 detecting arm 22, flow rate detection arm 23 and change flow rate detection scope connected in the middle part of short tube 21 and the other end seals that flow rate detection mechanism 2 includes with butterfly valve 1 is connected。The top of detection arm 22 is provided with axle bed 25, and axle bed 25 is flexibly connected with detection arm fulcrum 26, and the test side 231 of flow rate detection arm 23 is arranged in short tube 21。The top of flow rate detection arm 23 is fixing with detection arm fulcrum 26 to be connected。Regulate device 24 to be connected with detection arm fulcrum 26。
When pipeline normal water supply, the test side of flow velocity detection arm is formed impulsive force by current, promotes flow rate detection arm to swing in certain amplitude, and the more fast amplitude of fluctuation of flow rate of water flow is more big。When there is the accidents such as booster, the flow rate of water flow in pipeline is abnormal to be raised, and when the amplitude of fluctuation of flow rate detection arm reaches preset value, the dynamic detection arm fulcrum of flow rate detection arm straps is significantly around axial-rotation。The axial-rotation of detection arm fulcrum and then external agency can be driven to transmit out by flow velocity abnormal conditions。Described adjustment device can arrange the water flow impact pressure needed for flow rate detection arm swing according to the application scenario of flow rate detection mechanism, to provide more application scenario。
For the ease of being connected and transmit the moment of detection arm fulcrum with adjustment device, and prevent flow rate detection arm from significantly swinging and touching detection arm, cause damage。One end of detection arm fulcrum 26 is provided with shaft coupling 28, and shaft coupling 28 is provided with the locating part of restriction detection arm fulcrum 26 axial-rotation angle。The outer wall of detection arm 22 is provided with the spacing bearing pin 27 matched with locating part。
As shown in Figure 4, specifically, locating part is the groove 281 on shaft coupling 28, is arranged at screwed hole symmetrical on the sidewall of groove 281 and the bolt 282 supporting with screwed hole。One end of spacing bearing pin 27 is between bolt 282。Distance between bolt 282 scalable and spacing bearing pin 27, and then define the rotational angle of shaft coupling 28, i.e. the amplitude of fluctuation of flow rate detection arm 23。
Regulate device 24 to include regulating lever 241 and slide block 242。Slide block 242 is arranged at the two ends regulating lever 241。Regulating lever 241 and be provided with scale, the middle part regulating lever 241 is connected by the through hole 283 on shaft coupling 28 is fixing with detection arm fulcrum 26。Regulate device 24 by controlling to adjust the slide block 242 at lever 241 two ends, regulate flow rate detection arm 23 amplitude of fluctuation and reach preset value。
Flow rate detection arm 23 includes pole and test side 231, and test side 231 is the baffle plate being arranged on pole bottom, and the top of pole is fixing with detection arm fulcrum 26 to be connected。Flow velocity variation is made direct response by flow rate detection arm 23 so that detection is more quick, and result is relatively reliable。
As it is shown in figure 5, force transmission mechanism 3 include fixing with shaft coupling 28 be connected 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。The active force of detection arm fulcrum 26 is delivered to dowel steel 31 by shaft coupling 28, 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。
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 rotates ejection counterclockwise。Bearing pin support 461 is additionally provided with lining pressing plate 464。Bearing pin lining 463 is connected with lining pressing plate 464。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。
In order to prevent foreign material from encountering shaft coupling 28, regulating the parts such as device 24, causing butterfly valve 1 misoperation, the top of detection arm 22 is provided with protection and regulates the protection board 29 of device 24 and force transmission mechanism 3。
As shown in Figure 6, booster quick action emergency valve is additionally provided with the protective cover 35 for protecting dowel steel 31, connecting rod 32, quarter crank 33 and 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. a flow rate detection mechanism, it is characterised in that include with the short tube that liquid-transport pipe-line connects, one end and connect in the middle part of short tube and the other end seal detection arm, flow rate detection arm and change flow rate detection scope adjustment device；The top of described detection arm is provided with axle bed, and described axle bed is flexibly connected with detection arm fulcrum, and the test side of described flow rate detection arm is arranged in short tube, and the top of described flow rate detection arm is fixing with detection arm fulcrum to be connected；Described adjustment device is connected with detection arm fulcrum。
2. flow rate detection mechanism according to claim 1, it is characterized in that, one end of described detection arm fulcrum is provided with shaft coupling, and described shaft coupling is provided with the locating part of restriction detection arm fulcrum axial-rotation angle, and the outer wall of described detection arm is provided with the spacing bearing pin matched with locating part。
3. flow rate detection mechanism according to claim 2, it is characterised in that described locating part is the groove on shaft coupling, is arranged at screwed hole symmetrical on the sidewall of described groove and the bolt supporting with screwed hole；One end of described spacing bearing pin is between bolt。
4. flow rate detection mechanism according to claim 2, it is characterised in that described adjustment device includes regulating lever and slide block；Described slide block is arranged at the two ends regulating lever, and described adjustment lever is provided with scale。
5. flow rate detection mechanism according to claim 4, it is characterised in that the middle part of described adjustment lever is fixed with detection arm fulcrum by shaft coupling and is connected。
6. flow rate detection mechanism according to claim 1, it is characterised in that described flow rate detection arm includes pole and test side, and described test side is the baffle plate being arranged on pole bottom, the top of described pole is fixing with detection arm fulcrum to be connected。
7. flow rate detection mechanism according to claim 1, it is characterised in that the top of described detection arm is provided with protection and regulates the protection board of device and force transmission mechanism。
8. the booster quick action emergency valve being provided with flow rate detection mechanism described in claim 1～7 any one。
9. be provided with the booster quick action emergency valve of flow rate detection mechanism according to claim 8, it is characterised in that be additionally provided with force transmission mechanism and connect, described force transmission mechanism include fixing with shaft coupling be connected dowel steel, connecting rod, quarter crank；Described dowel steel is connected with one end of connecting rod by articulated elements；Described quarter crank rotates around fixed center axis, and its one end is connected with executive item respectively, and the other end is hinged with connecting rod。
10. it is provided with the booster quick action emergency valve of flow rate detection mechanism according to claim 9, it is characterized in that, what described articulated elements included the driving link being connected with dowel steel and the driven member being connected with connecting rod, described driving link or driven member is axially provided with at least one hinge point。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620039504.9U CN205331447U (en) | 2016-01-18 | 2016-01-18 | Velocity of flow detection mechanism and booster quick action emergency valve thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620039504.9U CN205331447U (en) | 2016-01-18 | 2016-01-18 | Velocity of flow detection mechanism and booster quick action emergency valve thereof |
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| CN205331447U true CN205331447U (en) | 2016-06-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508632A (en) * | 2016-01-18 | 2016-04-20 | 株洲南方阀门股份有限公司 | Flow speed detecting mechanism and pipe explosion emergency cut-off valve thereof |
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2016
- 2016-01-18 CN CN201620039504.9U patent/CN205331447U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508632A (en) * | 2016-01-18 | 2016-04-20 | 株洲南方阀门股份有限公司 | Flow speed detecting mechanism and pipe explosion emergency cut-off valve thereof |
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