CN207437798U - A kind of on-off valve - Google Patents
A kind of on-off valve Download PDFInfo
- Publication number
- CN207437798U CN207437798U CN201721636514.1U CN201721636514U CN207437798U CN 207437798 U CN207437798 U CN 207437798U CN 201721636514 U CN201721636514 U CN 201721636514U CN 207437798 U CN207437798 U CN 207437798U
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- China
- Prior art keywords
- sliding block
- extensible member
- flow pipe
- sealing
- valve casing
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- Temperature-Responsive Valves (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model is related to a kind of on-off valves, including the interior valve casing equipped with flow pipe, it is arranged on the sealing sliding block for being formed with contraction chamber in valve casing between valve casing, it is equipped in the contraction chamber using extensible member made of negative temperature expanding material, one end of extensible member is fixed with sealing sliding block, the other end is fixed with valve casing, can promote sealing sliding block that flow pipe is intercepted sealing after extensible member volume expansion, and sealing sliding block can be promoted to discharge flow pipe after extensible member volume contraction and opened；In or beyond the extensible member heating wires are connected with equipped with the heating wire that heat can be generated after the energization contacted with extensible member, heating wire.Compared with prior art, the utility model has the advantage of：By the way that sealing sliding block and driving is set to seal extensible member made of the use negative temperature expanding material of sliding block movement, the movement for sealing sliding block is realized by heated, the cooling of extensible member, opens so that flow pipe be discharged or flow pipe is intercepted into sealing.
Description
Technical field
The utility model is related to a kind of on-off valves.
Background technology
Existing on-off valve generally comprises valve body and spool, flow pipe is equipped in valve body, and spool is acted in driving mechanism
Under be turned on and off flow pipe, therefore, existing on-off valve be required to set spool driving mechanism.However, existing spool drives
Motivation structure is mostly complex, and cost is higher.
Utility model content
Technical problem to be solved in the utility model is that offer for the above-mentioned prior art is a kind of simple in structure, at low cost
On-off valve.
Technical solution is used by the utility model solves above-mentioned technical problem：A kind of on-off valve is equipped with stream including interior
The valve casing on siphunculus road, it is characterised in that：The sealing sliding block that contraction chamber is formed between valve casing, the receipts are equipped in the valve casing
Contracting intracavitary is equipped with using extensible member made of negative temperature expanding material, and one end and the sealing sliding block of extensible member are fixed, the other end and
Valve casing is fixed, and can be promoted sealing sliding block that flow pipe is intercepted sealing after extensible member volume expansion, be received in extensible member volume
Sealing sliding block can be promoted to discharge flow pipe after contracting to open；After the energization contacted with extensible member is equipped in or beyond the extensible member
The heating wire of heat can be generated, heating wire is connected with heating wires.
As an improvement, the contraction chamber valve casing in be equipped with using signal collecting element made of piezoelectric material and with letter
The signal acquisition line of number acquisition elements connection；Spring is additionally provided in the contraction chamber, one end and the signal collecting element of spring connect
It connects, the other end of spring is connected with sealing sliding block.
It improves again, the valve casing is equipped with the entrance and exit connected with flow pipe, and the sealing sliding block activity is set
In flow pipe, and the flow pipe between entrance and outlet can be intercepted sealing under extensible member effect or incited somebody to action by sealing sliding block
Flow pipe release between entrance and outlet is opened.
It improves again, the line segments opposite with exporting are tapered in the flow pipe, and energy also is provided on the sealing sliding block
The tapered end coordinated with the line segments of taper.
It improves again, the utility model is further included to be opened with the power supply of the power supply of heating wires and control power supply break-make
It closes.
It improves again, the utility model further includes the indicator light being connected with signal acquisition line.
Compared with prior art, the utility model has the advantage of：By the way that sealing sliding block and driving sealing sliding block is set to move
Extensible member made of dynamic use negative temperature expanding material realizes the movement of sealing sliding block by heated, the cooling of extensible member, from
And flow pipe is discharged and opens or flow pipe is intercepted into sealing.
Description of the drawings
Fig. 1 is the structure diagram (opening state) of on-off valve in the utility model embodiment.
Fig. 2 is the structure diagram (sealing state) of on-off valve in the utility model embodiment.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing embodiment.
On-off valve as shown in Figure 1, 2, including the interior valve casing 1 equipped with flow pipe 11, the valve casing 1 is equipped with and circulation
The entrance 12 and outlet 13 that pipeline 11 connects, the sealing sliding block 2 are movably arranged on 11 in flow pipe, are set in the valve casing 1
There is the sealing sliding block 2 that contraction chamber 14 is formed between valve casing, be equipped in the contraction chamber 12 using negative temperature expanding material system
Into extensible member 3, one end of extensible member 3 and sealing sliding block 2 fix, and the other end is fixed with valve casing 1, is equipped in or beyond extensible member 3
The heating wire 7 of heat can be generated after the energization contacted with extensible member, heating wire 7 is connected with heating wires 8, and heating wires are also connected with
There is power supply 9 and control the power switch 10 of power supply break-make；It can promote sealing sliding block 2 that will enter after extensible member volume expansion
Flow pipe between mouth and outlet intercepts sealing, can promote sealing sliding block will be between entrance and outlet after extensible member volume contraction
Flow pipe release open.
In the present embodiment, the line segments opposite with outlet 13 are tapered in flow pipe, also are provided on the sealing sliding block 2
The tapered end that can coordinate with the line segments of taper.
It is equipped in the valve casing of the contraction chamber 14 using signal collecting element 4 made of piezoelectric material and and signal acquisition
The signal acquisition line 5 of element connection；Spring 6 is additionally provided in the contraction chamber, one end of spring 6 is connected with signal collecting element 5,
The other end of spring 6 is connected with sealing sliding block 2；Signal acquisition line 5 is connected with indicator light 15.
When above-mentioned on-off valve needs to open, 10 are turned off the power switch, power supply 9 is made to supply electricity to heating wire 7, heating wire 7
Work on power, heating wire according to joule principle generate thermal energy, thermal energy formula be Q=UIT (U is input power, and I is input current,
T is conduction time), the thermal energy of heating wire can raise 3 internal temperature of extensible member, and extensible member 3 uses negative temperature expanding material, body
Product is gradually tapered up along cavity wall is shunk, so as to which sealing sliding block 2 be pulled to be moved to shrinkage direction, so that between entrance and exit
Passage open, until being pulled to limit point stops movement, valve inner pipeline degree of opening reaches maximum, and valve flux is by 0 to maximum
Throughput process is because the material property of extensible member is there are an amount of delay, therefore the process that can reach unlatching is gently stablized.Work as electricity
After source switch 10 is opened, heating wire power supply disconnects, and after heating wire is stopped power supply, heating wire temperature reduces, and is affected by temperature, and stretches
The volume of part 3 starts gradually to expand, and sealing sliding block is promoted to move closer to the outlet of flow pipe, after 40 degree, extensible member 3
A temperature expansion material of paying recover to maximum volume, finally be bonded with outlet, the access between blocking entrance and exporting.Power-off is dynamic
Make with being closed completely there are a delay time, delay time is related to electric current during work and voltage value, operating current and electricity
Pressing is determined, so delay time is a fixed value, thus achievees the effect that time-delay closing.
The indicating mechanism being made of in valve casing 1 spring and piezoelectric material, valve opening process, sealing sliding block is in moving process
In, spring is driven to generate deformation quantity and squeezes signal collecting element made of piezoelectric material, so as to output voltage signal, seals sliding block
Moving process voltage signal constantly change, when seal sliding block slide to the flux aperture maximum of spacing place, i.e. on-off valve when, voltage
Signal reaches stationary value, maximum and constant, it indicates that valve is opened completely；After valve is closed, sealing sliding block be gradually closed into
Pipeline between mouth and outlet, spring stretching, extension, signal collecting element made of piezoelectric material are subject to spring pressure to be gradually reduced, electricity
Signal is pressed to reduce, until sealing sliding block is fully sealed, the voltage value of signal collecting element is reduced to minimum, and remains motionless,
It then represents to be closed completely in on-off valve.
Claims (6)
1. a kind of on-off valve, including the interior valve casing equipped with flow pipe, it is characterised in that：It is equipped in the valve casing between valve casing
The sealing sliding block of contraction chamber is formed with, is equipped in the contraction chamber using extensible member, extensible member made of negative temperature expanding material
One end with sealing sliding block fix, the other end is fixed with valve casing, can be promoted after extensible member volume expansion seal sliding block by circulation
Pipeline intercepts sealing, and sealing sliding block can be promoted to discharge flow pipe after extensible member volume contraction and opened；In the extensible member
Or the heating wire that heat can be generated after the energization contacted with extensible member is externally provided with, heating wire is connected with heating wires.
2. on-off valve according to claim 1, it is characterised in that：It is equipped in the valve casing of the contraction chamber using piezoelectric material
Manufactured signal collecting element and the signal acquisition line being connected with signal collecting element；Spring, bullet are additionally provided in the contraction chamber
One end of spring is connected with signal collecting element, and the other end of spring is connected with sealing sliding block.
3. on-off valve according to claim 2, it is characterised in that：The valve casing is equipped with the entrance connected with flow pipe
And outlet, it is described sealing sliding block be movably arranged in flow pipe, and seal sliding block can extensible member effect under by entrance with going out
Flow pipe between mouthful intercepts sealing or discharges the flow pipe between entrance and outlet and opens.
4. on-off valve according to claim 3, it is characterised in that：The line segments opposite with exporting are in the flow pipe
Taper, it is described to seal the tapered end for also being provided with coordinating with the line segments of taper on sliding block.
5. on-off valve according to claim 4, it is characterised in that：It further includes and is supplied with the power supply of heating wires and control
The power switch of electric on/off.
6. on-off valve according to claim 5, it is characterised in that：Further include the indicator light being connected with signal acquisition line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721636514.1U CN207437798U (en) | 2017-11-30 | 2017-11-30 | A kind of on-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721636514.1U CN207437798U (en) | 2017-11-30 | 2017-11-30 | A kind of on-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207437798U true CN207437798U (en) | 2018-06-01 |
Family
ID=62285151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721636514.1U Active CN207437798U (en) | 2017-11-30 | 2017-11-30 | A kind of on-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207437798U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110370582A (en) * | 2019-05-31 | 2019-10-25 | 熊雪根 | A kind of preparation process and device of polyamide |
| CN111120719A (en) * | 2020-01-13 | 2020-05-08 | 广东振兴消防设备有限公司 | Sensing, driving and executing integrated mechanism controlled by action characteristics of temperature sensing element |
-
2017
- 2017-11-30 CN CN201721636514.1U patent/CN207437798U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110370582A (en) * | 2019-05-31 | 2019-10-25 | 熊雪根 | A kind of preparation process and device of polyamide |
| CN111120719A (en) * | 2020-01-13 | 2020-05-08 | 广东振兴消防设备有限公司 | Sensing, driving and executing integrated mechanism controlled by action characteristics of temperature sensing element |
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