CN201818862U - Double-channel breakaway valve and seal ring thereof - Google Patents
Double-channel breakaway valve and seal ring thereof Download PDFInfo
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- CN201818862U CN201818862U CN2010202425234U CN201020242523U CN201818862U CN 201818862 U CN201818862 U CN 201818862U CN 2010202425234 U CN2010202425234 U CN 2010202425234U CN 201020242523 U CN201020242523 U CN 201020242523U CN 201818862 U CN201818862 U CN 201818862U
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- spigot
- socket
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- pull breaking
- breaking ualve
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Abstract
The utility model provides a double-channel breakaway valve. The valve comprises a valve body, a center joint and a valve core, wherein the valve body comprises a hollow inner joint and an outer joint; a first ring-shaped groove is formed on the inner wall at the rear end of the outer joint; a second ring-shaped groove is formed on the outer wall at the front end of the inner joint and corresponds to the first ring-shaped groove; a breakaway ring is arranged in the first ring-shaped groove and the second ring-shaped groove respectively to fix the outer joint and the inner joint; the breakaway rings are elastically deformed under the tangential force separating the outer joint from the inner joint to detach from the first ring-shaped groove and the second ring-shaped groove, so as to separate the outer joint from the inner joint; an O-ring seal is sleeved on the outer side at the front end of the valve core; the inner side surface of the O-ring seal is a recessed cambered surface; a projection protruding outwards is arranged on the upper side and the lower side of the cambered surface respectively; and the projections are in line contact with a contact surface. In the double-channel breakaway valve, the breakaway rings capable of being elastically deformed under the action of external forces are adopted to replace the conventional connecting pin, so that the breakaway valve can be used repeatedly.
Description
Technical field
The utility model relates to the pipeline transmission protective gear, particularly a kind of Twin channel Pull breaking ualve and seal ring thereof.
Background technique
Pull breaking ualve is parts on the oilling machine, it be installed between nozzle and the sebific duct or sebific duct and oilling machine fuselage between, effect is when strong external force acts on the nozzle; the Pull breaking ualve automatic disconnection; the protection oilling machine is not forgotten about it, and Pull breaking ualve itself sealing does not simultaneously make oil leak outside.
Therefore, Pull breaking ualve is a safety block on the oilling machine, and during proper functioning, it is equivalent to one section pipeline, does the time spent in unusual external force, and it at first disconnects, and seals oil circuit simultaneously, thus the protection oilling machine, in case oil leakage.
Before gas recovery system for oil was not installed by the gas station, the sebific duct on the oilling machine, nozzle and Pull breaking ualve all were single pass, promptly have only asphalt channel; Reclaim transformation along with the gas station carries out oil gas, nozzle, sebific duct and Pull breaking ualve all must be replaced by Twin channel, and promptly existing asphalt channel has gas channels again, but under the situation that Pull breaking ualve power effect is outside broken, only need the oil circuit sealing, do not need the gas circuit sealing.
Fig. 1 shows employed a kind of Twin channel Pull breaking ualve in the prior art.As shown in Figure 1, Pull breaking ualve comprises valve body 1, center sub 2 and spool 3.Valve body 1 comprises the spigot 4 and the socket 5 of hollow, and wherein, the front end of spigot 4 can be set in the rear end of socket 5, and the center channel of spigot 4 and socket 5 forms valve pocket.
The rear end of spigot 4 is connected with oil delivery hose with internal thread, and the front end of socket 5 is connected with output units such as oil guns with outside thread.
The center channel of socket 5 has the contraction limited part 51 that diameter reduces, and its front end that is used to prevent spigot 4 skids off from the front end of socket 5.The connecting pin 6 of the sidewall of the relative position of spigot 4 and socket 5 by penetrating spigot 4 and socket 5 is fixing.
Center sub 2 is installed in the valve pocket of valve body 1, and its rear end stretches in the center channel of spigot 4.The rear end of center sub 2 is limited by the connecting sleeve 7 that is installed in the spigot 4, thereby prevents that center sub 2 from skidding off from the rear end of valve pocket.The front end of center sub 2 is limited by the back-up ring 8 that is arranged in the socket 5, thereby prevents that center sub 2 from skidding off from the front end of valve pocket.Spool 3 is set in the rear portion of center sub 2, and the front end of spool 3 has annular protrusion 31, and the rear end of center sub 2 has annular protrusion 21, and Pull breaking ualve spring 9 is installed between annular protrusion 31 and the annular protrusion 21.
When Pull breaking ualve was in user mode, because the qualification effect of connecting sleeve 7 and back-up ring 8, Pull breaking ualve spring 9 was in compressive state.
The center channel of spigot 4 has the contraction limited part 41 that internal diameter reduces, and is corresponding, and the front end of spool 3 also has the sealed department 32 corresponding with contraction limited part 41.Sealed department 32 can contact with 41 sealings of contraction limited part.Wherein, the distance between contraction limited part 41 and center sub 2 rear ends is smaller or equal to the natural length of Pull breaking ualve spring 9.
Form the oil circuit path between center sub 2 and the valve pocket, the center channel of the center channel of center sub 2 and spigot 4 then forms the gas circuit path of Pull breaking ualve.Wherein, the oil stream of importing from oil delivery hose passes through from the outside of spigot 4, the outside of spool 3 and the space between center sub 2 and the socket 5, and flows out to output units such as oil gun from the front end of socket 5 and the space between the center sub 2.
When the pipeline that connects Pull breaking ualve or nozzle are subjected to surpassing the pulling force of setting value, when for example being subjected to 130～230 kgfs, the connecting pin 6 of Pull breaking ualve can be broken because of being subjected to horizontal tangential force, make spigot 4 separate with socket 5, then the position-limiting action of 8 pairs of center sub 2 front ends of the back-up ring in the socket 5 disappears, and then the compression of 2 pairs of Pull breaking ualve springs 9 of center sub also disappears simultaneously.Pull breaking ualve spring 9 is replied its nature.Then spool 3 under the promotion of Pull breaking ualve spring 9, the sealed department 21 of spool front end be pushed to and shrink limited part 41 sealing position contacting; the oil circuit path of spigot one side that then is connected with oil delivery hose will be closed; thereby cut off oil stream, prevent fuel injection, the protection fuel-servicing equipment.
But the connecting pin of existing product stressedly has a strict demand to it, needs to calculate and processing through strict, can not arbitrarily replace, so after connecting pin was broken, then whole Pull breaking ualve can not be reused, and can only discard.In fact, the mechanism of each joint part of Pull breaking ualve all is intact, and the connecting pin that only is connected between the joint has been subjected to damage.Therefore, in a single day the connecting pin of this structure is just broken and is gone out of use, and can cause the very big economic loss and the wasting of resources.
The model utility content
For fear of the problems referred to above, the utility model provides a kind of Pull breaking ualve and seal ring thereof, replaces existing connecting pin can produce the elastically-deformable ring of breaking under external force, can realize the repeated use of Pull breaking ualve, not only reduce user cost, and can realize good sealing effect.
The technological scheme that its technical problem that solves the utility model adopts is:
A kind of Twin channel Pull breaking ualve comprises valve body, center sub and first spool,
Described valve body comprises the spigot and the socket of hollow, and the front end of spigot can be set in the rear end of socket, and the center channel of spigot and socket forms valve pocket;
Center sub is installed in the described valve pocket, and the rear end of described center sub stretches in the spigot;
Be fixed with the back-up ring that limits the center sub front end in the described socket, fix the connecting sleeve of the described center sub of qualification rear end in the described spigot;
Described valve core housing is located at the outside of center sub rear end, outer sheathed first spring of described spool, and this first spring is pushed into first spool position that makes the first spool front end block the center channel of described spigot and socket when socket and spigot separate;
The inwall of described socket rear end has first annular groove, the position that the outer wall of described spigot front end is corresponding with this first annular groove has second annular groove, one breaks ring is arranged in first annular groove and second annular groove, with the position of fixing described socket and spigot;
The described ring of breaking produces resiliently deformable and breaks away from described first annular groove and second annular groove under the tangential force effect that described socket and spigot are separated, make described socket and spigot separately;
The described spool front end sheathed O-ring seal in the outside, the inner side surface of sealing circle is recessed cambered surface, and the both sides up and down of this cambered surface have a bump that outwards protrudes respectively, and described bump forms line with surface of contact and contacts.
Preferably, described break the ring be an opening jump ring.
Preferably, described Twin channel Pull breaking ualve also comprises an O type circle, and an O type snare is located at the front end outside of described center sub.
Preferably, described Twin channel Pull breaking ualve also comprises the 2nd O type circle, and the 2nd O type snare is located at the front end outside of described socket.
Preferably, described Twin channel Pull breaking ualve comprises that also one is used to prevent between described spigot and the socket expansion controlling ring-shaped insert in relative rotation,
This expansion controlling ring-shaped insert is between the rear end of the front end of described spigot and described socket.
Preferably, described Twin channel Pull breaking ualve also comprises the 3rd O type circle, and the 3rd O type snare is located at the outside of described spigot front end.
Preferably, described Twin channel Pull breaking ualve also comprises the 4th O type circle, and the 4th O type snare is located at the outside of described center sub rear end.
Preferably, described Twin channel Pull breaking ualve also comprises second spool,
Described second valve core housing is located at the outside of center sub front end, outer sheathed second spring of described spool, this second spring is pushed into second spool position that makes the second spool front end block the center channel of described spigot and socket when socket and spigot separate.
The utility model also provides a kind of O-ring seal, and the inner side surface of sealing circle is recessed cambered surface, and the both sides of this cambered surface have a bump that outwards protrudes respectively, and described bump forms line with surface of contact and contacts.
Preferably, the radius of described bump is 0.2mm.
Preferably, the external diameter of described O-ring seal is 22mm, and internal diameter is 18mm.
Twin channel Pull breaking ualve of the present utility model with can produce under external force elastically-deformable break ring replace existing can only expendable connecting pin, can realize the repeated use of Pull breaking ualve, greatly reduce the user cost of Pull breaking ualve.In addition, Twin channel Pull breaking ualve of the present utility model is by being provided with the seal ring of number of different types at diverse location, can realize between the oil circuit path and gas circuit path of Pull breaking ualve, the good sealing effect between oil circuit path and the external world.
Description of drawings
Fig. 1 is the sectional view of employed a kind of Twin channel Pull breaking ualve in the prior art.
Fig. 2 is an embodiment's of a Twin channel Pull breaking ualve of the present utility model sectional view.
Fig. 3 is the sectional view of seal ring of the present utility model.
Fig. 4 is another embodiment's of a Twin channel Pull breaking ualve of the present utility model sectional view.
Embodiment
The purpose of this utility model is to provide a kind of Pull breaking ualve and seal ring thereof, replace existing connecting pin can produce the elastically-deformable ring of breaking under external force, can realize the repeated use of Pull breaking ualve, not only reduce user cost, and can realize good sealing effect.
For making the purpose of this utility model, technological scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the utility model is further described.
Fig. 2 shows the sectional view of Twin channel Pull breaking ualve of the present utility model.As shown in Figure 2, Pull breaking ualve comprises valve body 201, center sub 202 and spool 203.Valve body 201 comprises the spigot 204 and the socket 205 of hollow, and wherein, the front end of spigot 204 can be set in the rear end of socket 205, and the center channel of spigot 204 and socket 205 forms valve pocket.
The rear end of spigot 204 is connected with oil delivery hose with internal thread, and the front end of socket 205 is connected with output units such as oil guns with outside thread.Wherein, the internal thread of spigot 204 rear ends is M34 * 1.5-7H, and the outside thread of socket 205 front ends is M34 * 1.5-6h.
The center channel of socket 205 has the contraction limited part 251 that diameter reduces, and its front end that is used to prevent spigot 204 skids off from the front end of socket 205.The rear end inwall of socket 205 has first annular groove, the outer wall of spigot 204 front ends has second annular groove in the position corresponding with this first annular groove, one breaks ring 206 is arranged in first annular groove and second annular groove, with the fixing position of socket 205 and spigot 206.
Under the tangential force effect that socket 205 and spigot 204 are separated, can produce resiliently deformable and break away from first annular groove and second annular groove thereby break ring 206, make socket 205 and spigot 204 separately.
When Pull breaking ualve was in user mode, because the qualification effect of connecting sleeve 207 and back-up ring 208, Pull breaking ualve spring 209 was in compressive state.
The center channel of spigot 204 has the contraction limited part 241 that internal diameter reduces, and is corresponding, and the front end of spool 203 also has the sealed department 232 corresponding with contraction limited part 241.Sealed department 232 can contact with 241 sealings of contraction limited part.Wherein, the distance between contraction limited part 241 and center sub 202 rear ends is smaller or equal to the natural length of Pull breaking ualve spring 209.
Form the oil circuit path between center sub 202 and the valve pocket, the center channel of the center channel of center sub 202 and spigot 204 then forms the gas circuit path of Pull breaking ualve.Wherein, pass through from the outside of spigot 204, the outside of spool 203 and the space between center sub 202 and the socket 205 from the oil stream of oil delivery hose input, and flow out to output units such as oil gun from the front end of socket 205 and the space between the center sub 202.
When the pipeline that connects Pull breaking ualve or nozzle are subjected to surpassing the pulling force of setting value, when for example being subjected to 130～230 kgfs, Pull breaking ualve break ring 206 can produce elastic strain because of being subjected to horizontal tangential force, thereby break away from first annular groove and second annular groove, then break the position-limiting action disappearance of ring, make spigot 204 separate with socket 205 to socket 205 and spigot 204.
Then the position-limiting action of 208 pairs of center sub 202 front ends of the back-up ring in the socket 205 disappears, and then the compression of 202 pairs of Pull breaking ualve springs 209 of center sub also disappears simultaneously.Pull breaking ualve spring 209 is replied its nature.Then spool 203 under the promotion of Pull breaking ualve spring 210, the sealed department 232 of its front end is pushed to shrink limited part 241 sealing position contacting; thereby block the center channel between spigot 204 and the socket 205; the oil circuit path of spigot 204 1 sides that then are connected with oil delivery hose will be closed; thereby cut off oil stream; prevent fuel injection, the protection fuel-servicing equipment.
Under the effect of tangential force, can produce resiliently deformable owing to break ring 206, and under the situation that tangential force disappears, can restore to the original state, therefore, after the spigot 204 of Pull breaking ualve and socket 205 are separated, breaking ring 206 can also be mounted in first annular groove and second annular groove, thereby realize reusing, can reduce user cost greatly.
Preferably, of the present utility modelly break the opening jump ring that ring 206 can adopt GB/T 305-1989, this jump ring is the annular with an opening, because the existence of this opening, therefore it is under the effect that is subjected to tangential force, the ring wall of opening both sides is understood owing to the caused by relative motion resiliently deformable, thereby breaks away from first annular groove and second annular groove.
Because it is Pull breaking ualve of the present utility model is a Twin channel Pull breaking ualve, therefore, very strict for the seal request between oil circuit path and the gas circuit path.Therefore, Twin channel Pull breaking ualve of the present utility model further comprises a plurality of seal rings that are used to seal.
Preferably, the sheathed O-ring seal 301 in the outside of the front end of spool 203, Fig. 3 is the sectional view of O-ring seal of the present utility model.As shown in Figure 3, the inner side surface 311 of sealing circle 301 is recessed cambered surface, and the both sides of this cambered surface have a bump 312 that outwards protrudes respectively, and bump 312 can form line with surface of contact and contact.
O-ring seal 301 is set in outside the sealed department 232 of spool front end, and when sealed department 232 contacted with 241 sealings of contraction limited part, the bump 312 of O-ring seal 301 can form lines with contraction limited part 241 and contact.Under the pressure effect of spring 209, bump 312 can contact with shrinking limited part 241 sealings, thoroughly to block the oil circuit path of Pull breaking ualve.
This O-ring seal is made by teflon, and this material is met oil and do not produced dilatancy, is suitable for using in the oil circuit path.
Preferably, the radius of bump 312 is 0.2mm.Can have arc-shaped transition between the main body of the root of this bump 312 and O-ring seal 301, the radius of this transition arcs is 0.25mm.
Preferably, the external diameter of O-ring seal 301 is 22mm, and internal diameter is 18mm, and thickness is 1.6mm.
Referring to Fig. 2, Twin channel Pull breaking ualve of the present utility model comprises that also an O type circle 302, the one O type circles 302 are sheathed on the front end outside of center sub 202, are used to separate the oil circuit path of gas circuit path and oil gun.
Twin channel Pull breaking ualve of the present utility model comprises that also the 2nd O type circle 303, the two O type circles 303 are sheathed on the front end outside of socket 205, are used to prevent that the oil circuit path from communicating with the external world.
Twin channel Pull breaking ualve of the present utility model comprises that also one is used to prevent between spigot 204 and the socket 205 expansion controlling ring-shaped insert 304 in relative rotation, and this expansion controlling ring-shaped insert 304 is between the rear end of the front end of spigot 204 and socket 205.
Twin channel Pull breaking ualve of the present utility model comprises that also the 3rd O type circle 305, the three O type circles 305 are sheathed on the outside of spigot 204 front ends, realize fit sealing by compressing the 3rd O type circle 305 between socket 205 and the spigot 204.
Twin channel Pull breaking ualve of the present utility model comprises that also the 4th O type circle 306, the four O type circles 306 are sheathed on the outside of center sub 202 rear ends, to separate the oil circuit path of gas circuit path and oil gun.
Twin channel Pull breaking ualve of the present utility model with can produce under external force elastically-deformable break ring replace existing can only expendable connecting pin, can realize the repeated use of Pull breaking ualve, greatly reduce the user cost of Pull breaking ualve.In addition, Twin channel Pull breaking ualve of the present utility model is by being provided with the seal ring of number of different types at diverse location, can realize between the oil circuit path and gas circuit path of Pull breaking ualve, the good sealing effect between oil circuit path and the external world.
More than be that example has been described Twin channel Pull breaking ualve of the present utility model with the single face Pull breaking ualve, but the utility model is not limited in this, Twin channel Pull breaking ualve of the present utility model also can comprise two-sided Pull breaking ualve, and Fig. 4 is another embodiment's of a Twin channel Pull breaking ualve of the present utility model sectional view.As shown in Figure 4, this two-sided Pull breaking ualve comprises valve body 401, center sub 402 and first spool 403.Valve body 401 comprises the spigot 404 and the socket 405 of hollow, and wherein, the front end of spigot 404 can be set in the rear end of socket 405, and the center channel of spigot 404 and socket 405 forms valve pocket.
The rear end of spigot 404 is connected with oil delivery hose with internal thread, and the front end of socket 405 is connected with output units such as another root oil delivery hoses with internal thread.Wherein, the internal thread of the internal thread of spigot 404 rear ends and socket 405 front ends is M34 * 1.5-7H.
What the center channel of socket 405 had that the diameter of contiguous socket rear end one side reduces first shrinks limited part 451, and its front end that is used to prevent spigot 404 skids off from the front end of socket 205.The rear end inwall of socket 405 has first annular groove, the outer wall of spigot 404 front ends has second annular groove in the position corresponding with this first annular groove, one breaks ring 406 is arranged in first annular groove and second annular groove, with the fixing position of socket 405 and spigot 406.
Under the tangential force effect that socket 405 and spigot 404 are separated, can produce resiliently deformable and break away from first annular groove and second annular groove thereby break ring 406, make socket 405 and spigot 404 separately.
What the center channel of socket 405 had that the diameter of contiguous socket front end one side reduces second shrinks limited part 452, and its front end that is used to prevent center sub 402 skids off from the front end of socket 405.The front end of center sub 402 stretches in the center channel of socket 405.The front end of center sub 402 is limited by second connecting sleeve 407 ' that is installed in the socket 405, thereby prevents that center sub 402 from skidding off from the front end of valve pocket.
Second spool 403 ' is set in the front portion of center sub 202, the front end of second spool 403 ' has annular protrusion 431 ', the front end of center sub 402 has annular protrusion 421 ', the second spring 409 ' and is installed between annular protrusion 431 ' and the annular protrusion 421 '.
When Pull breaking ualve was in user mode, because the qualification effect of first connecting sleeve 407 and second connecting sleeve 407 ', first spring 409 and second spring 409 ' all were in compressive state.
The center channel of spigot 404 has the contraction limited part 441 that internal diameter reduces, and is corresponding, and the front end of first spool 403 also has the sealed department 432 corresponding with contraction limited part 441.Sealed department 432 can contact with 441 sealings of contraction limited part.Wherein, the distance between contraction limited part 441 and center sub 402 rear ends is smaller or equal to the natural length of first spring 409.
The center channel of socket 405 has the contraction limited part 441 ' that internal diameter reduces, and is corresponding, and the front end of second spool 403 ' also has the sealed department 432 ' corresponding with contraction limited part 441 '.Sealed department 432 ' can contact with the 441 ' sealing of contraction limited part.Wherein, the distance between contraction limited part 441 ' and center sub 402 front ends is smaller or equal to the natural length of second spring 409 '.
Form the oil circuit path between center sub 402 and the valve pocket, the center channel of the center channel of center sub 402 and spigot 404 then forms the gas circuit path of Pull breaking ualve.Wherein, pass through from the outside of spigot 404, the outside of spool 403 and the space between center sub 402 and the socket 405 from the oil stream of oil delivery hose input, and flow out to output units such as another oil delivery hose from the front end of socket 405 and the space between the center sub 402.
When the pipeline that connects Pull breaking ualve or nozzle are subjected to surpassing the pulling force of setting value, when for example being subjected to 130～230 kgfs, Pull breaking ualve break ring 406 can produce elastic strain because of being subjected to horizontal tangential force, thereby break away from first annular groove and second annular groove, then break the position-limiting action disappearance of ring, make spigot 404 separate with socket 405 to socket 405 and spigot 404.
Then the position-limiting action of second connecting sleeve 407 ' in the socket 405 and the 407 pairs of center subs 402 of first connecting sleeve in the spigot 404 disappears, and then the compression of 402 pairs first springs 409 of center sub and second spring 409 ' also disappears simultaneously.At this moment, first spring 409 and second spring 409 ' are replied its nature.Then first spool 403 under the promotion of first spring 409, the sealed department 432 of its front end is pushed to shrink limited part 441 sealing position contacting; Second spool 403 ' under the promotion of second spring 409 ', the sealed department 432 ' of its front end is pushed to shrink limited part 441 ' sealing position contacting; thereby block center channel between spigot 404 and the socket 405 from twocouese; the oil circuit path of spigot 404 1 sides that then are connected with oil delivery hose will be closed; thereby cut off oil stream; prevent fuel injection, the protection fuel-servicing equipment.
Two-sided Pull breaking ualve be to use equally can produce under external force elastically-deformable break ring replace existing can only expendable connecting pin, can realize the repeated use of Pull breaking ualve.It blocks the oil circuit path simultaneously from twocouese, has improved the reliability of sealing further.
The above, it is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, any those skilled in the art, in not breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all still belong to the scope of technical solutions of the utility model.
Claims (11)
1. a Twin channel Pull breaking ualve comprises valve body, center sub and first spool,
Described valve body comprises the spigot and the socket of hollow, and the front end of spigot can be set in the rear end of socket, and the center channel of spigot and socket forms valve pocket;
Center sub is installed in the described valve pocket, and the rear end of described center sub stretches in the spigot;
Be fixed with the back-up ring that limits the center sub front end in the described socket, fix the connecting sleeve of the described center sub of qualification rear end in the described spigot;
Described first valve core housing is located at the outside of center sub rear end, outer sheathed first spring of described spool, and this first spring is pushed into first spool position that makes the spool front end block the center channel of described spigot and socket when socket and spigot separate;
It is characterized in that,
The inwall of described socket rear end has first annular groove, the position that the outer wall of described spigot front end is corresponding with this first commutation groove has second annular groove, one breaks ring is arranged in first annular groove and second annular groove, with the position of fixing described socket and spigot;
The described ring of breaking produces resiliently deformable and breaks away from described first annular groove and second annular groove under the tangential force effect that described socket and spigot are separated, make described socket and spigot separately;
The described spool front end sheathed O-ring seal in the outside, the inner side surface of sealing circle is recessed cambered surface, and the both sides up and down of this cambered surface have a bump that outwards protrudes respectively, and described bump forms line with surface of contact and contacts.
2. Twin channel Pull breaking ualve according to claim 1 is characterized in that, described break the ring be an opening jump ring.
3. Twin channel Pull breaking ualve according to claim 1 and 2 is characterized in that, described Twin channel Pull breaking ualve also comprises an O type circle, and an O type snare is located at the front end outside of described center sub.
4. Twin channel Pull breaking ualve according to claim 1 and 2 is characterized in that, described Twin channel Pull breaking ualve also comprises the 2nd O type circle, and the 2nd O type snare is located at the front end outside of described socket.
5. Twin channel Pull breaking ualve according to claim 1 and 2 is characterized in that, described Twin channel Pull breaking ualve comprises that also one is used to prevent between described spigot and the socket expansion controlling ring-shaped insert in relative rotation,
This expansion controlling ring-shaped insert is between the rear end of the front end of described spigot and described socket.
6. Twin channel Pull breaking ualve according to claim 1 and 2 is characterized in that, described Twin channel Pull breaking ualve also comprises the 3rd O type circle, and the 3rd O type snare is located at the outside of described spigot front end.
7. Twin channel Pull breaking ualve according to claim 1 and 2 is characterized in that, described Twin channel Pull breaking ualve also comprises the 4th O type circle, and the 4th O type snare is located at the outside of described center sub rear end.
8. Twin channel Pull breaking ualve according to claim 1 and 2 is characterized in that, described Twin channel Pull breaking ualve also comprises second spool,
Described second valve core housing is located at the outside of center sub front end, outer sheathed second spring of described spool, this second spring is pushed into second spool position that makes the second spool front end block the center channel of described spigot and socket when socket and spigot separate.
9. an O-ring seal is characterized in that, the inner side surface of sealing circle is recessed cambered surface, and the both sides of this cambered surface have a bump that outwards protrudes respectively, and described bump forms line with surface of contact and contacts.
10. O-ring seal according to claim 9 is characterized in that, the radius of described bump is 0.2mm.
11. O-ring seal according to claim 10 is characterized in that, the external diameter of described O-ring seal is 22mm, and internal diameter is 18mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202425234U CN201818862U (en) | 2010-06-21 | 2010-06-21 | Double-channel breakaway valve and seal ring thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202425234U CN201818862U (en) | 2010-06-21 | 2010-06-21 | Double-channel breakaway valve and seal ring thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201818862U true CN201818862U (en) | 2011-05-04 |
Family
ID=43916814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202425234U Expired - Lifetime CN201818862U (en) | 2010-06-21 | 2010-06-21 | Double-channel breakaway valve and seal ring thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201818862U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056692A (en) * | 2019-05-22 | 2019-07-26 | 苏州三米格环保科技有限公司 | Pull breaking ualve |
| CN110185821A (en) * | 2019-06-26 | 2019-08-30 | 上海康措流体控制有限公司 | One kind pulling valve |
-
2010
- 2010-06-21 CN CN2010202425234U patent/CN201818862U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056692A (en) * | 2019-05-22 | 2019-07-26 | 苏州三米格环保科技有限公司 | Pull breaking ualve |
| CN110185821A (en) * | 2019-06-26 | 2019-08-30 | 上海康措流体控制有限公司 | One kind pulling valve |
| CN110185821B (en) * | 2019-06-26 | 2024-05-14 | 上海康措流体控制有限公司 | Pulling-out valve |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110504 |