CN208417611U - Cut-off type two-position three-way valve - Google Patents
Cut-off type two-position three-way valve Download PDFInfo
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- CN208417611U CN208417611U CN201820986997.6U CN201820986997U CN208417611U CN 208417611 U CN208417611 U CN 208417611U CN 201820986997 U CN201820986997 U CN 201820986997U CN 208417611 U CN208417611 U CN 208417611U
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Abstract
The utility model discloses a kind of cut-off type two-position three-way valves, front cover and rear cover including valve body and before and after valve body, air inlet is offered on the valve body, working hole and exhaust outlet, it is characterized in that, valve rod is equipped in the valve body, the valve rod left and right ends are separately installed with forward bolt piston and rear end piston, forward end seal circle is equipped between the valve rod and forward bolt piston, back-end sealing circle is equipped between valve rod and rear end piston, the valve rod is mobile to be made to be in contact between forward end seal circle and valve body to form sealing surface air inlet is connected to working hole, valve rod is mobile to be made to be in contact between back-end sealing circle and valve body to form sealing surface exhaust outlet is connected with working hole.By the above-mentioned means, the utility model cut-off type two-position three-way valve, can simplify structure, the response time is short, and starting pressure is low, long service life, and production cost is low.
Description
Technical field
The utility model relates to two-position three-way valve fields, more particularly to a kind of cut-off type two-position three-way valve.
Background technique
General cut-off type structure type valve body main aperture needs Precision Machining to seal gas nozzle, and cut-off type sealing gland processing technology is multiple
It is miscellaneous, it needs first to process sealing cover inserts and carries out the vulcanization of rubber again, flat stone mill is needed to process seal face after vulcanization, control terminal is living
Plug also will first process skeleton inserts, then carry out rubber curing forming, more demanding to processing technology, be easy to appear waste product and cause
Waste, so overall process is more complicated, processing cost is also relatively high.General common cut-off type two-bit triplet solenoid valve
Structure is rear cover spring reset, and the general service life of spring is shorter, and 5,000,000 times spring fatigue test has been the limit, therefore
Spring life is usually the short slab place in solenoid valve service life.
Summary of the invention
The utility model can simplify structure mainly solving the technical problems that provide a kind of cut-off type two-position three-way valve,
Response time is short, and starting pressure is low, long service life, and production cost is low.
In order to solve the above technical problems, the technical solution that the utility model uses is: providing a kind of cut-off type two
Triple valve, front cover and rear cover including valve body and before and after valve body offer air inlet, working hole and row on the valve body
Port, the valve body is interior to be equipped with valve rod, and the valve rod left and right ends are separately installed with forward bolt piston and rear end piston, the valve rod
It is equipped with forward end seal circle between forward bolt piston, back-end sealing circle is equipped between valve rod and rear end piston, the valve rod movement makes
It is in contact between forward end seal circle and valve body and to form sealing surface air inlet is connected to working hole, valve rod movement makes back-end sealing
It is in contact to form sealing surface exhaust outlet is connected with working hole between circle and valve body.
In one preferred embodiment of the utility model, the valve rod is equipped with close for being clamped forward end seal circle and rear end
Seal extension, has chamfering structure on the end of the extension, and the front and back ends sealing ring is mounted on front and back ends piston
Mounting groove in and fallen to prevent anti-avulsion by chamfering structure compression.
There is lug boss, the boss is moved forward and backward in the medium position of valve rod, the valve rod on the inside of the valve body
Forward end seal circle or back-end sealing circle is set to be in contact with lug boss to realize forward end seal circle or back-end sealing circle and valve body
Between sealing.
In one preferred embodiment of the utility model, the symmetrical structure of valve rod.
In one preferred embodiment of the utility model, V-shaped seal ring is additionally provided on the forward bolt piston.
In one preferred embodiment of the utility model, first guide bracket is installed on the right side of the valve body, on elder generation's guide bracket
First guide bracket gas nozzle is offered, is equipped with dynamic iron core on the right side of elder generation's guide bracket gas nozzle, the dynamic iron core is equipped with static iron core, the valve body
Inside also there is valve body elder generation gas port.
In one preferred embodiment of the utility model, it is respectively provided with lower glue at left and right sides of the dynamic iron core and blocks up and glues
Stifled, the static iron core is equipped with static iron core gas nozzle.
In one preferred embodiment of the utility model, elder generation's guide bracket is equipped with for controlling dynamic iron core and static iron core
Manual knob and electromagnetic coil.
The beneficial effects of the utility model are: the utility model cut-off type two-position three-way valve, structure can be simplified, when response
Between it is short, starting pressure is low, long service life, and production cost is low.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings, in which:
Fig. 1 is the structural schematic diagram of one preferred embodiment of the utility model；
Fig. 2 is the partial structural diagram of Fig. 1；
The components in the drawings are labeled as follows: 1, valve rod, 2, rear end piston, 3, back-end sealing circle, 4, valve body elder generation gas port,
5, forward end seal circle, 6, forward bolt piston, 7, V-shaped seal ring, 8, front cover, 9, manual knob, 10, first guide bracket gas nozzle, 11, lower glue
It is stifled, 12, gluing it is stifled, 13, static iron core gas nozzle, 14, electromagnetic coil, 15 exhaust outlets, 16, working hole, 17, air inlet, 18, rear cover,
19, valve body, 20, first guide bracket, 21, dynamic iron core, 22, static iron core, 23, chamfering structure, 24, lug boss, 25, extension, 26, installation
Slot.
Specific embodiment
Below by the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment is only a part of the embodiment of the utility model, instead of all the embodiments.Based on the implementation in the utility model
Example, all other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Referring to Fig. 1, a kind of cut-off type two-position three-way valve, 8 He of front cover including valve body 19 and set on 19 front and back of valve body
Rear cover 18 offers air inlet 17, working hole 16 and exhaust outlet 15 on valve body 19, is equipped with valve rod 1, valve rod 1 or so in valve body 19
Both ends are separately installed with forward bolt piston 6 and rear end piston 2, and forward end seal circle 5, valve rod 1 are equipped between valve rod 1 and forward bolt piston 6
Be equipped with back-end sealing circle 3 between rear end piston 2, valve rod 1 is mobile make to be in contact between forward end seal circle 5 and valve body 19 to be formed it is close
Cover is connected to air inlet 17 with working hole 16, valve rod 1 is mobile make to be in contact between back-end sealing circle 3 and valve body 19 to be formed it is close
Cover makes exhaust outlet 15 be connected with working hole 16.
In addition, valve rod 1 is equipped with the extension 25 for being clamped forward end seal circle 5 and back-end sealing circle 3, extension 25
There is chamfering structure 23, front and back ends sealing ring is mounted in the mounting groove 26 of front and back ends piston and passes through chamfering structure on end
23 compressions fall to prevent anti-avulsion.End seal form using front and back ends sealing ring and 19 planar end surface of valve body, valve rod 1, which improves, to be added
One chamfering structure 23 of work, current, back-end sealing circle are installed in the slot of front and back ends piston dress, and piston and valve rod installation are locked
After tight, front and back ends sealing ring side can be compressed at valve rod chamfering, blow out front and back ends sealing ring will not by air pressure.
In addition, having lug boss 24 on the inside of valve body 19, lug boss 24 is located at the medium position of valve rod 1, and valve rod 1 is moved forward and backward
Forward end seal circle 5 or back-end sealing circle 3 is set to be in contact with lug boss 24 to realize forward end seal circle 5 or back-end sealing circle 3
With the sealing between valve body 19.
In addition, the symmetrical structure of valve rod 1 is easy to process and assembles.
In addition, being additionally provided with V-shaped seal ring 7 on forward bolt piston 6.The air pressure that valve rod 1 is generated by front and back end piston area product moment
Thrust pushes it to be acted.
In addition, the right side of valve body 19 is equipped with first guide bracket 20, first guide bracket gas nozzle 10, first guide bracket gas are offered on first guide bracket 20
Dynamic iron core 21 is equipped on the right side of mouth 10, dynamic iron core 21 is equipped with static iron core 22, also has valve body elder generation gas port 4 in valve body 19.
In addition, the left and right sides of dynamic iron core 21 is respectively provided with lower glue stifled 11 and gluing stifled 12, static iron core 22 is equipped with quiet iron
Core gas nozzle 13.
In addition, first guide bracket 20 is equipped with manual knob 9 and electromagnetic coil 14 for controlling dynamic iron core 21 and static iron core 22.
The specific working principle is as follows for the utility model cut-off type two-position three-way valve:
A condition: in the case of electromagnetic coil no power and manual knob closing, from 17 air inlet of air inlet, air pressure passes through valve body
19 first gas port 4 enters 10 at first guide bracket gas nozzle, at this time by dynamic iron core reset spring pressing against under dynamic iron core glue stifled 11 with
First guide bracket gas nozzle 10 seals, the thrust that the air pressure that air inlet is come in relies on piston 2 size face area difference in rear end to generate, after promotion
End piston 2 acts to the right, at this point, rear end cut-off sealing ring 3 and an end face of valve body 4 are sealed, air inlet 17 and working hole
16 are not connected to, and the other end of front end cut-off sealing ring 5 and valve body 4 is in open state, working hole 16 and exhaust outlet 15 at this time
Connection；
B state: when electromagnetic coil 14 is powered or manual knob 9 is opened, dynamic iron core can be made to act to the right and inhaled with static iron core
It closing, glue stifled 11 is separated from first guide bracket gas nozzle 10 under dynamic iron core at this time, and gluing stifled 12 generates sealing with static iron core gas nozzle 13, and
The stomata that the air pressure come out at first guide bracket gas nozzle 10 then passes through front cover 8 enters the open end of V-shaped seal ring 7 in valve body 4, pushes V
Type sealing ring 7 generates movement together with forward bolt piston 6 and valve rod to the left, until the generation of the hole end surface of forward end seal circle 5 and valve body 4 is close
Envelope cut-off, working hole 16 are no longer connected to exhaust outlet 15, and a seal face of rear end sealing ring 3 and valve body 4 is separated from and,
Air inlet 17 is set to be connected with working hole 16；
After the power-off of electromagnetic coil 14 and manual knob 9 are closed, solenoid valve has been returned to A condition,
Movement is circuited sequentially, to control the on-off of air inlet 17, working hole 16 and exhaust outlet 15.
It is different from the prior art, the utility model cut-off type two-position three-way valve can simplify structure, and influence time is short, makes
Long with the service life, production cost is low.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Using equivalent structure or equivalent flow shift made by the utility model description, it is applied directly or indirectly in other phases
The technical field of pass, is also included in the patent protection scope of the utility model.
Claims (8)
1. a kind of cut-off type two-position three-way valve, front cover and rear cover including valve body and before and after valve body are opened on the valve body
Equipped with air inlet, working hole and exhaust outlet, which is characterized in that be equipped with valve rod, the valve rod left and right ends difference in the valve body
Forward bolt piston and rear end piston are installed, forward end seal circle, valve rod and rear end piston are equipped between the valve rod and forward bolt piston
Between be equipped with back-end sealing circle, the valve rod is mobile to be made to be in contact between forward end seal circle and valve body to form sealing surface and make air inlet
It mouthful is connected to working hole, valve rod moves to make to be in contact between back-end sealing circle and valve body to form sealing surface and make exhaust outlet and work
Mouth is connected.
2. cut-off type two-position three-way valve according to claim 1, which is characterized in that before the valve rod is equipped with for being clamped
Sealing ring and back-end sealing circle extension are held, there is chamfering structure, the front and back ends sealing ring peace on the end of the extension
It is compressed in the mounting groove of front and back ends piston and by chamfering structure and is fallen to prevent anti-avulsion.
3. cut-off type two-position three-way valve according to claim 2, which is characterized in that there is lug boss on the inside of the valve body,
The boss makes forward end seal circle or back-end sealing circle and protrusion in the medium position of valve body, the valve rod back-and-forth motion
Portion, which is in contact, forms sealing surface between forward end seal circle or back-end sealing circle and valve body to realize.
4. cut-off type two-position three-way valve according to claim 3, which is characterized in that the symmetrical structure of valve rod.
5. cut-off type two-position three-way valve according to claim 4, which is characterized in that be additionally provided with V-type on the forward bolt piston
Sealing ring.
6. -5 any cut-off type two-position three-way valve according to claim 1, which is characterized in that install on the right side of the valve body
There is first guide bracket, first guide bracket gas nozzle is offered on elder generation's guide bracket, is equipped with dynamic iron core, the dynamic iron core on the right side of elder generation's guide bracket gas nozzle
Right side is equipped with static iron core, also has valve body elder generation gas port in the valve body.
7. cut-off type two-position three-way valve according to claim 6, which is characterized in that distinguish the left and right sides of the dynamic iron core
It blocks up and glues equipped with lower glue and block up, the static iron core is equipped with static iron core gas nozzle.
8. cut-off type two-position three-way valve according to claim 7, which is characterized in that elder generation's guide bracket is equipped with for controlling
The manual knob and electromagnetic coil of dynamic iron core and static iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820986997.6U CN208417611U (en) | 2018-06-26 | 2018-06-26 | Cut-off type two-position three-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820986997.6U CN208417611U (en) | 2018-06-26 | 2018-06-26 | Cut-off type two-position three-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208417611U true CN208417611U (en) | 2019-01-22 |
Family
ID=65110153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820986997.6U Active CN208417611U (en) | 2018-06-26 | 2018-06-26 | Cut-off type two-position three-way valve |
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| Country | Link |
|---|---|
| CN (1) | CN208417611U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043688A (en) * | 2019-04-29 | 2019-07-23 | 江苏沙洲阀门有限公司 | A kind of high-pressure pneumatic reversing solenoid valve |
| CN110925457A (en) * | 2019-12-26 | 2020-03-27 | 鞍山电磁阀有限责任公司 | External pilot-operated electromagnetic valve |
-
2018
- 2018-06-26 CN CN201820986997.6U patent/CN208417611U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043688A (en) * | 2019-04-29 | 2019-07-23 | 江苏沙洲阀门有限公司 | A kind of high-pressure pneumatic reversing solenoid valve |
| CN110925457A (en) * | 2019-12-26 | 2020-03-27 | 鞍山电磁阀有限责任公司 | External pilot-operated electromagnetic valve |
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