CN205984797U - Double -piston gas circuit flow switch - Google Patents
Double -piston gas circuit flow switch Download PDFInfo
- Publication number
- CN205984797U CN205984797U CN201620917969.XU CN201620917969U CN205984797U CN 205984797 U CN205984797 U CN 205984797U CN 201620917969 U CN201620917969 U CN 201620917969U CN 205984797 U CN205984797 U CN 205984797U
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- Prior art keywords
- traveller
- section
- diameter
- connecting seat
- sleeve pipe
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Abstract
The utility model relates to a flow switch, concretely relates to double -piston gas circuit flow switch, including the connecting seat, connecting seat one end is equipped with the joint, and the other end is equipped with the pad post, is equipped with the metallic gasket between connecting seat and the pad post, is close to the one section bore diameter who connects one end and is less than one section bore diameter near filling up post one end, be equipped with the traveller in the connecting seat, the traveller divide into two sections, is close to the one section smooth column diameter who connects one end and is greater than the one section smooth column diameter who is close to pad post one end, being equipped with the sealing washer on the big one section traveller of diameter, being equipped with the sleeve pipe on the little one section traveller of diameter, sleeve pipe one end is equipped with the boss, is equipped with set tube spring on the sleeve pipe between boss and metallic gasket, is equipped with the traveller spring on the little one section traveller of diameter between boss and diameter one section big traveller tip. This switch can effectively prevent not have the super temperature risk that circuit conduction results in under gaseous and the low pressure gas state, and the double -piston structure can realize the reequilibrate to air pressure fluctuation, circuit's stable connection.
Description
Technical field
This utility model is related to a kind of flow switch and in particular to a kind of double-piston gas circuit flow switch, for gas circuit stream
Lead to and circuit turn-on.
Background technology
Gas circulation is generally controlled to take button switch manually implemented, while pressing, by circuit turn-on, so no matter
Whether there are compressed gas to pass through, circuit all will turn on, gas is being carried out in instantaneous heating process, high-resistance electrothermic alloy heats
Under do not circulate compressed gas or too small pressure compressed gas state, surface heat measures and transmits less than timely silk, and temperature will
Reach 400 DEG C about, the plastics being connected with high-resistance electrothermic alloy and sealing ring all will damage；And in high-resistance electrothermic alloy
Temperature controller is installed in connector and can dramatically increase its volume again.
Utility model content
According to deficiency of the prior art above, the technical problems to be solved in the utility model is：A kind of double-piston is provided
Gas circuit flow switch, solves above-mentioned problem.
Double-piston gas circuit flow switch described in the utility model, including connecting seat, connecting seat one end is provided with joint, another
End is provided with pad post, is provided with the inner hole structure for hollow inside metallic gasket, connecting seat, near joint one between connecting seat and pad post
One section of diameter of bore at end is less than one section of diameter of bore near pad post one end；It is provided with traveller, traveller is divided into two sections in connecting seat,
One section of traveller near joint one end is with diameter greater than one section of traveller diameter near pad post one end；Set on one section of big traveller of diameter
Have sealing ring, one section of little traveller of diameter is provided with sleeve pipe, and sleeve pipe one end is provided with boss, on sleeve pipe boss and metallic gasket it
Between be provided with sleeve pipe spring, one section of little traveller of diameter is provided with traveller bullet between one section of big traveller end of boss and diameter
Spring.
Under the air pressure balance state of traveller two ends, traveller and sleeve pipe are located at close under traveller spring and sleeve pipe spring effect
The inlet port of joint, gas passage gap is reduced to and can only be passed through minimum gas by sealing ring, sleeve pipe and terminal circuit of giving vent to anger
Disconnect.
It is more than under the pressure state of outlet side in joint compression pressure, thrust gas are more than the elastic force of spring, promote
Traveller moves to pad post one end, under traveller spring and sleeve pipe spring effect, drives sleeve pipe mobile and outlet side circuit turn-on, sliding
Post is turned right after moving a certain distance, and sealing ring leaves at little endoporus, is at the big endoporus of connecting seat, gas can smoothly flow,
And the traveller displacement produced by small range fluctuation of air pressure fallen by traveller spring and sleeve pipe spring buffer, sleeve pipe and terminal circuit of giving vent to anger
Have been at conducting state.
Preferably, sealing ring is O-ring.
This utility model is compared with prior art had an advantageous effect in that：
Double-piston gas circuit flow switch structure is simple, in addition it is also necessary to there be the compression of certain pressure when by therapeutic method to keep the adverse QI flowing downwards button switch
Gas circulation ability start-up circuit, may be implemented in circuit turn-on under certain pressure gas circulation status, does not have gas circulation or gas
Under state that pressure is not enough, circuit disconnects, and can effectively prevent the overtemperature wind that under no gas and low pressure gaseous state, circuit turn-on leads to
Danger, dual-piston structure can achieve the reequilibrate to air pressure fluctuation, realizes being stably connected with of circuit.
Brief description
Fig. 1 is structural representation of the present utility model；
Fig. 2 is this utility model off working state sectional view；
Fig. 3 is utility model works state sectional view.
In figure：1st, connecting seat；2nd, metallic gasket；3rd, pad post；4th, joint；5th, sleeve pipe；6th, sleeve pipe spring；7th, traveller；8th, sliding
Post spring；9th, sealing ring.
Specific embodiment
Below in conjunction with the accompanying drawings embodiment of the present utility model is described further：
As shown in Figure 1-Figure 3, double-piston gas circuit flow switch includes connecting seat 1, and connecting seat 1 one end is provided with joint 4, another
End is provided with pad post 3, is provided with metallic gasket 2 between connecting seat 1 and pad post 3, and connecting seat 1 inside is the inner hole structure of hollow, close
One section of diameter of bore of joint 4 one end is less than one section of diameter of bore near pad post 3 one end；It is provided with traveller 7 in connecting seat 1, sliding
Post 7 is divided into two sections, and one section of traveller near joint 4 one end is with diameter greater than one section of traveller diameter near pad post 3 one end；Diameter is big
One section of traveller 7 be provided with sealing ring 9, one section of little traveller 7 of diameter is provided with sleeve pipe 5, and sleeve pipe 5 one end is provided with boss, sleeve pipe 5
On be provided with sleeve pipe spring 6 between boss and metallic gasket 2, in big one section of boss and diameter on one section of little traveller 7 of diameter
It is provided with traveller spring 8 between traveller end.
Sealing ring 9 is preferably O-ring.
During off working state, under traveller 7 two ends air pressure balance state, traveller 7 and sleeve pipe 5 are in traveller spring 8 and sleeve pipe
Spring 6 effect is lower to be located at inlet port, and that is, near one end of joint 4, gas passage gap is given that be reduced to can only be micro by O-ring
Gas passes through, and sleeve pipe 5 is disconnected with terminal circuit of giving vent to anger.
During working condition, at joint 4, compression pressure is more than under the pressure state of outlet side, and thrust gas are more than spring
Elastic force, promote traveller 7 toward moving right, under traveller spring 8 and sleeve pipe spring 6 act on, sleeve pipe 5 is toward moving right and outlet side electricity
Road turns on, and traveller 7 is turned right after moving a certain distance, and O-ring leaves at little endoporus, is in the big endoporus of connecting seat 1, gas can be suitable
Smooth flowing, and produced by the small range fluctuation of air pressure, traveller 7 displacement is buffered by traveller spring 8 and sleeve pipe spring 6, sleeve pipe
5 have been at conducting state with terminal circuit of giving vent to anger.
The above, be only preferred embodiment of the present utility model, is not to make other forms to this utility model
Restriction, any be familiar with this professional professional and technical personnel and changed or be modified as possibly also with the technology contents of the disclosure above
The Equivalent embodiments of equivalent variations.But every without departing from technical solutions of the utility model content, according to skill of the present utility model
Any simple modification, equivalent variations and remodeling that art is substantially made to above example, still fall within technical solutions of the utility model
Protection domain.
Claims (2)
1. a kind of double-piston gas circuit flow switch, including connecting seat (1), connecting seat (1) one end is provided with joint (4), and the other end sets
Have pad post (3) it is characterised in that：It is provided with metallic gasket (2), during connecting seat (1) inside is between connecting seat (1) and pad post (3)
Empty inner hole structure, one section of diameter of bore near joint (4) one end is less than one section of diameter of bore near pad post (3) one end；
It is provided with traveller (7), traveller (7) is divided into two sections, one section of traveller near joint (4) one end is with diameter greater than close in connecting seat (1)
One section of traveller diameter of pad post (3) one end；One section of big traveller (7) of diameter is provided with sealing ring (9), one section of little traveller of diameter
(7) it is provided with sleeve pipe (5), sleeve pipe (5) one end is provided with boss, sleeve pipe (5) is provided with sleeve pipe between boss and metallic gasket (2)
Spring (6), one section of little traveller (7) of diameter is provided with traveller spring (8) between one section of big traveller end of boss and diameter.
2. double-piston gas circuit flow switch according to claim 1 it is characterised in that：Described sealing ring (9) is O-shaped
Circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620917969.XU CN205984797U (en) | 2016-08-22 | 2016-08-22 | Double -piston gas circuit flow switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620917969.XU CN205984797U (en) | 2016-08-22 | 2016-08-22 | Double -piston gas circuit flow switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205984797U true CN205984797U (en) | 2017-02-22 |
Family
ID=58032829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620917969.XU Active CN205984797U (en) | 2016-08-22 | 2016-08-22 | Double -piston gas circuit flow switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205984797U (en) |
-
2016
- 2016-08-22 CN CN201620917969.XU patent/CN205984797U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |