CN207018610U - A kind of piston type vacuum coaxial valve using vacuum as power gas source - Google Patents
A kind of piston type vacuum coaxial valve using vacuum as power gas source Download PDFInfo
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- CN207018610U CN207018610U CN201720747729.4U CN201720747729U CN207018610U CN 207018610 U CN207018610 U CN 207018610U CN 201720747729 U CN201720747729 U CN 201720747729U CN 207018610 U CN207018610 U CN 207018610U
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Abstract
The utility model provides a kind of piston type vacuum coaxial valve using vacuum as power gas source, including piston valve core, cylinder barrel, briquetting, sealing block, sealing ring, seal valve seat, electromagnetic control apparatus；The piston valve core is tubular, is sleeved in cylinder barrel and can move back and forth；The both ends of the cylinder barrel are provided with sealing block, for the packaging clearance between sealing piston formula valve element and cylinder barrel；The sealing block outer end is provided with briquetting, for compressing sealing block；Seal valve seat is also equipped with the port of export of the piston valve core, for the port of sealing piston formula valve element；The sealing ring contacting with each other on face between each part.Using scheme of the present utility model, without external connection power source of the gas, using vacuum as power source, you can the open and close of coaxial valve are realized with low power two-bit triplet magnetic valve, consumption power is small, easy to operate.
Description
Technical field
It the utility model is related to fluid flow valve gate technology field, more particularly to a kind of piston using vacuum as power gas source
Formula vacuum coaxial valve.
Background technology
Vacuum solenoid refers to the magnetic valve for being less than the negative pressure of vacuum system of normal atmosphere (An) for pressure, suitable for vacuum
Equipment pipeline does two formula break-make switching executing agencies, and it is widely used on the industry vacuum system pipeline such as food, metallurgy.Its
Operation principle is exactly to utilize electromagnetic induction phenomenon, it is carried out induction control to pipeline, using vacuum principle, to valve
Door is internal to make vacuum construction, improves effectively the operating efficiency of vacuum solenoid, when the medium in pipeline is passing through
Near vacuum solenoid when pipeline, medium will send information to the induction installation of vacuum solenoid, and valve will lead to
Information is crossed, the flow velocity of medium in pipeline is adjusted, efficiency is very high.
Chinese patent 201420600537.7 discloses a kind of vacuum solenoid, including valve body, and toroid is provided with valve body
Enclose, be equipped with static iron core and dynamic iron core successively in the annular ring, body top is fixed with nut, and the nut is provided with through hole, quiet
Iron core is embedded in the top of loop coil, and the static iron core center is provided with the first through hole connected with nut through hole, dynamic iron core and ring
Passage is formed between shape coil, body base is provided with the second through hole, has and communicates therewith below the second through hole both sides
Oblique through hole；Chinese patent 201210577436.8 discloses a kind of multi-level throttle regulating valve, including：Bonnet, valve body, valve rod,
Valve element, seal assembly, valve core housing, drain pipe, feed tube；Wherein, valve core housing is hollow cylinder, and its both ends is fixed on valve body
On the top and bottom cavity wall of chamber, valve core housing inwall has a plurality of rib, and the internal diameter of rib matches with valve core diameter, close to valve core housing
Top end is radially provided with inlet opening；Valve element is the polyhedral structure that is processed on a cylinder matrix, valve element upper end
There is a boss at place, and boss lower inclined plane is sealing surface, has a flow restriction control face under sealing surface at a certain distance.It is above-mentioned existing
Technology, when the power that the environment such as zero pressure difference or vacuum, high pressure needs is larger, it is necessary to be horizontally mounted, limit the wide of valve
General application.
Therefore, design it is a kind of can with any angle install, without other additional power gas sources, great-power electromagnetic need not be used
The vacuum valve of coil turns into one of technical problem.
Utility model content
For overcome the limitation of setting angle present in prior art, electromagnetic power limitation etc. technical problem, this practicality is newly
Type provides a kind of piston type vacuum coaxial valve using vacuum as power gas source.
The technical solution of the utility model is：A kind of piston type vacuum coaxial valve using vacuum as power gas source, its feature
It is：Including coaxial valve portion and electromagnetism valve portion, the coaxial valve portion using vacuum as power source, including piston valve core,
Cylinder barrel, briquetting, sealing block, sealing ring, seal valve seat, the electromagnetism valve portion include electromagnetic control apparatus；The piston type
Valve element is tubular, is sleeved in cylinder barrel and can move back and forth；The side wall of the cylinder barrel has passage, the cylinder
The both ends of cylinder are provided with sealing block, for the packaging clearance between sealing piston formula valve element and cylinder barrel；The sealing block outer end
Briquetting is installed, for compressing sealing block；Seal valve seat is also equipped with the port of export of the piston valve core, for sealing work
The port of plug valve element；The electromagnetic control apparatus is connected by pipeline one end with cylinder barrel side wall, the other end and seal valve seat
Outer briquetting connection；The sealing ring contacting with each other on face between each part.
On this basis, the outer wall of the piston valve core has circular step, has annular ditch groove, institute on the step
State that annular ditch groove is embedded to be cased with piston packing, the inwall of the piston packing and cylinder barrel is in sealing contact；In piston type
Spring is cased with the side wall of valve element entrance point, the spring one end is against on sealing block section, and the other end is against circular step side
On face.
On this basis, the cylinder barrel side wall has two passages, and two passages are respectively communicated with and plunger valve
The space of core circular step both sides, the wherein passage of entrance point are connected by pipeline with electromagnetic control apparatus, and the port of export leads to
Stomata is connected with air.
On this basis, the sealing block is middle porose round pie, and the outer wall of the cake has ring-shaped groove, institute
State groove and be nested with flexible sealing ring, the elastic seal ring is resilient contacting sealing with briquetting inwall；The interstitial hole
Inwall has ring-shaped groove, and the groove is nested with flexible sealing ring, and the sealing block is sleeved on the piston valve core two
On the outer wall at end, the elastic seal ring is resilient contacting sealing with plunger valve outer core；The section of the sealing block and gas
The port of cylinder barrel offsets；The edge of the sealing block of the port of export also has the flanging to stretch out.
On this basis, the briquetting is located at the outside of the sealing block, leads to inside the briquetting with cylindrical fluid
Road, the briquetting inside have step, form into the cylindrical channel of 2-3 section different-diameters；The cylinder barrel, sealing block cover
In the barrel dliameter of briquetting；The inner most step of briquetting of the entrance point and the port of piston valve core offset；The outlet
The briquetting side wall at end has stomata, is connected by pipeline with electromagnetic control apparatus；Pass through bolt between the left and right briquetting block
Connection fastening.
On this basis, the seal valve seat is round pie, and at its section edges and flanging end face of sealing block offsets,
There is circular elastic sealing gasket at round pie kernel of section, have a diameter larger than or the diameter equal to piston valve core, and with work
The port of export of plug valve element forms elastic packing；As a kind of optional embodiment of the utility model, described elastic packing
Pad as round pie, have a diameter larger than the external diameter of piston valve core；It is described as another optional embodiment of the utility model
Elastic sealing gasket be annular shape, the section of its ring cross-section covering piston valve core port；The seal valve seat is close in elasticity
Some through holes are also distributed with the outer rim of packing, the through hole is correspondingly distributed in annular cross section between piston valve core and cylinder barrel
On.
On this basis, the piston valve core port of export is inner conical, and the edge of a knife, structure are formed at the fascia edge of port
The elastic sealing gasket in circlewise sealed knife, the annular seal knife and seal valve seat center, which offsets, to be resilient sealing.
On this basis, the electromagnetic control apparatus includes：Two-bit triplet magnetic valve, magnetic valve spring, valve core of the electromagnetic valve；
The two-bit triplet magnetic valve Single port is connected with air, and Single port connects with the passage at cylinder barrel entrance point end, one end
Connected with the passage of the briquetting of the port of export.
On this basis, when the coaxial valve is opened, the passage of the cylinder barrel port of export passes through pipeline, two-bit triplet
Magnetic valve connects with the briquetting of the port of export；When the coaxial valve is closed, the passage of the cylinder barrel entrance point passes through pipeline, two
Position-3-way solenoid valve and atmosphere.
On this basis, the gas in the coaxial valve or other media can realize two-way flow control, entrance point pipeline
Interior fluid is positive pressure or negative pressure of vacuum；When the valve is closed, vacuum and positive pressure pressure can be born without leaking.
With compared with traditional vacuum solenoid, the beneficial effects of the utility model are：
1) without external connection power source of the gas, using vacuum as power source, i.e., without powerful solenoid controlled coaxial valve
Open and close, but use low power two-bit triplet magnetic valve be controllable negative pressure of vacuum transmission whether, so as to realize together
The open and close of axle valve, consumption power is small, easy to operate.
2) the technical solution of the utility model, according to vacuum pump flow rate size, the vacuum that can manufacture and design big flow is same
Axle valve.And traditional vacuum solenoid, the vacuum coaxial valve of big flow is manufactured, it is extremely difficult, and also operational control cost is high.
3) the technical solution of the utility model, balance type structure design is employed between inlet and outlet, and entrance point connects
The pipeline connect or other inner chambers can be positive pressure or negative pressure of vacuum.
4) traditional vacuum solenoid, valve function are influenceed by setting angle, and the technical solution of the utility model solution
Determine this technical problem, be adapted to any angle and position installation, do not interfere with the conducting of fluid in valve body.
5) the technical solution of the utility model, valve body axially loaded balance, can regardless of shunt pressure and pressure difference factor
Control high vacuum or high pressure.
6) the technical solution of the utility model, gas or other media can two-way flow control, valve close when, can bear
Vacuum and positive pressure pressure are without leaking, and the structure of prior art, can only realize individual event flowing control.
Brief description of the drawings
Fig. 1 is the structural representation when piston type vacuum coaxial valve using vacuum as power gas source is opened；
Fig. 2 is the structural representation when piston type vacuum coaxial valve using vacuum as power gas source is closed.
Reference is as follows in figure：Electromagnetism valve portion A and coaxial valve portion B, two-bit triplet electromagnetic valve coil 1, two three
Three-way electromagnetic valve spring 2, two-bit triplet valve core of the electromagnetic valve 3, left briquetting 4, left sealing block 5, sealing block inner seal ring 6, outside sealing block
Sealing ring 7, briquetting sealing ring 8, valve core spring 9, cylinder barrel 10, piston valve core 11, piston packing 12, sealing gasket 13, the right side
Sealing block 16, seal valve seat 17, connecting bolt 18, right briquetting 19.
Embodiment
Below in conjunction with drawings and examples, the utility model is further elaborated.It should be appreciated that this place is retouched
The specific embodiment stated only to explain the utility model, is not used to limit the utility model.
Embodiment 1
As depicted in figs. 1 and 2, a kind of piston type vacuum coaxial valve using vacuum as power gas source, including electromagnetism valve portion A
With coaxial valve portion B：Electromagnetism valve portion includes electromagnetic control apparatus；Coaxial valve portion is using vacuum as power source, including piston type
Valve element 11, cylinder barrel 10, left briquetting 4, right briquetting 19, left sealing block 5, right sealing block 16, sealing ring, seal valve seat 17.Wherein,
Piston valve core 11 is tubular, is sleeved in cylinder barrel 10 and can realize and moves back and forth；The both ends of cylinder barrel 10 are provided with
Sealing block, left and right each one, respectively left sealing block 5, right sealing block 16, sealing block be used for sealing piston formula valve element and cylinder barrel it
Between packaging clearance；Sealing block outer end is also equipped with briquetting, left and right each one, respectively left briquetting 4, right briquetting 19, for compressing
Sealing block；Seal valve seat 17 is also equipped with the port of export of piston valve core 11, for the port of sealing piston formula valve element 11；Electricity
Magnetic controller is connected by pipeline one end with the side wall of cylinder barrel 10, and the other end connects with the briquetting outside seal valve seat.
The outer wall of piston valve core 11 has circular step, has annular ditch groove on step, and annular ditch groove is embedded to be cased with living
The inwall of plug sealing ring 12, piston packing 12 and cylinder barrel 10 is in sealing contact；In the side wall of the entrance point of piston valve core 11
On be cased with valve core spring 9, the one end of valve core spring 9 is against on the section of left sealing block 4, and the other end is against the ring of piston valve core 11
On the side of shape step.
The side wall of cylinder barrel 10 has two passages, and two passages are respectively communicated with and the circular step two of piston valve core 11
The passage in the space of side, wherein entrance point is connected by pipeline with electromagnetic control apparatus, the passage of the port of export and big gas phase
Connection.
Sealing ring contacting with each other on face between each part, is mainly distributed on several contact surfaces：Piston valve core
Contact surface between 11 outer wall and the inwall of sealing block, such as the sealing block inner seal ring 6 in figure, left and right each one；Outside sealing block
Contact surface between wall and briquetting inwall, such as the sealing block exterior seal ring 7 in figure, left and right each one；The outer wall and pressure of cylinder barrel 10
Contact surface between block inwall, such as the briquetting sealing ring 8 in figure, left and right each one.The mode of sealing ring sealing uses annular ditch groove
The mode being combined with annular seal ring.
Sealing block is left and right each one, and both are slightly different, and sealing block is middle porose round pie, and the outer wall of cake has
Ring-shaped groove, groove are nested with flexible sealing ring, and elastic seal ring is resilient contacting sealing with briquetting inwall；Interstitial hole it is interior
Wall has ring-shaped groove, and groove is nested with flexible sealing ring, and sealing block is sleeved on the outer wall at piston valve core both ends, elasticity
Sealing ring is resilient contacting sealing with plunger valve outer core；The section of sealing block and the port of cylinder barrel offset；The port of export
The edge of sealing block also has the flanging to stretch out.
Briquetting is located at the outside of sealing block, has cylindrical fluid passage inside briquetting, has step inside briquetting, forms
Into the cylindrical channel of 2-3 section different-diameters；Cylinder barrel 10, left sealing block 5, right sealing block 16 are sleeved on the barrel dliameter of briquetting
It is interior；The port of the 4 inner most step of left briquetting and piston valve core 11 of entrance point offsets；The side wall of right briquetting 19 tool of the port of export
There is stomata, be connected by pipeline with electromagnetic control apparatus；Connected and fastened by bolt 18 between the briquetting block of left and right.
Seal valve seat 17 is round pie, and at its section edges and flanging end face of sealing block offsets, in round pie section
There is circular elastic sealing gasket 13, elastic sealing gasket 13 is round pie, is had a diameter larger than or equal to piston valve core 11 at the heart
Diameter, and form elastic packing with the port of export of piston valve core 11；The port of export of piston valve core 11 is inner conical, in port
Fascia edge at form the edge of a knife, form annular seal knife, the central elastic sealing gasket of annular seal knife and seal valve seat offsets
It is resilient sealing.
Electromagnetic control apparatus includes：Two-bit triplet magnetic valve, magnetic valve spring, valve core of the electromagnetic valve；Two-bit triplet magnetic valve
Single port is connected with air, and Single port connects with the passage at cylinder barrel entrance point end, and the briquetting of one end and the port of export leads to
Stomata connects.
When coaxial valve is opened, pressure that the passage of the cylinder barrel port of export passes through pipeline, two-bit triplet magnetic valve and the port of export
Block connects；When coaxial valve is closed, the passage of cylinder barrel entrance point passes through pipeline, two-bit triplet magnetic valve and atmosphere.
Gas or other media can realize two-way flow control, and the fluid in entrance point pipeline is born for positive pressure or vacuum
Pressure；When the valve is closed, vacuum and positive pressure pressure can be born without leaking.
Embodiment 2
With reference to shown in figure 1 and Fig. 2, a kind of piston type vacuum coaxial valve using vacuum as power gas source, including electromagnetism valve portion
Divide and coaxial valve portion：Electromagnetism valve portion includes electromagnetic control apparatus；Coaxial valve portion is using vacuum as power source, including piston type
Valve element 11, cylinder barrel 10, left briquetting 4, right briquetting 19, left sealing block 5, right sealing block 16, sealing ring, seal valve seat 17.Wherein,
Piston valve core 11 is tubular, is sleeved in cylinder barrel 10 and can realize and moves back and forth；The both ends of cylinder barrel 10 are provided with
Sealing block, left and right each one, respectively left sealing block 5, right sealing block 16, sealing block be used for sealing piston formula valve element and cylinder barrel it
Between packaging clearance；Sealing block outer end is also equipped with briquetting, left and right each one, respectively left briquetting 4, right briquetting 19, for compressing
Sealing block；Seal valve seat 17 is also equipped with the port of export of piston valve core 11, for the port of sealing piston formula valve element 11；Electricity
Magnetic controller is connected by pipeline one end with the side wall of cylinder barrel 10, and the other end connects with the briquetting outside seal valve seat.
Miscellaneous part 26S Proteasome Structure and Function is with embodiment 1, its difference：In the present embodiment, seal valve seat 17 is circle
Pie, at its section edges and flanging end face of sealing block offset, and have circular elastic packing at round pie kernel of section
Pad 13, elastic sealing gasket 13 are annular shape, the section of its ring cross-section covering piston valve core port, and with piston valve core 11
The port of export form elastic packing.
Schematic diagram when Fig. 1 is coaxial valve opening, its principle are：When right briquetting 19 passes through pipeline with vavuum pump in figure
When being connected, and starting vavuum pump, negative pressure of vacuum is produced in right briquetting cavity, while two-bit triplet magnetic valve is in opening state
State, two-bit triplet magnetic valve a mouths communicate with p mouths, the negative pressure of vacuum in right briquetting cavity is transmitted by two-bit triplet magnetic valve
In the cavity for having valve core spring 9 to the left side of piston valve core 11, due to being in atmospheric pressure state all the time on the right side of piston valve core,
And this left side cavity is under vacuum, both sides produce differential pressure, when power caused by differential pressure is more than spring force, piston valve core
11 are moved to the left, so that the edge of a knife of piston valve core 11 leaves the rubber gasket 13 of seal valve seat 17, when being moved to the left to 4
The inner side step spacing place of left briquetting, piston valve core stops movement, so that coaxial valve is in open mode, in right side vacuum
Under effect, left side air-flow flows to vavuum pump by the circular hole among piston valve core, make pipeline that left briquetting 4 is connected or its
He forms vacuum by cavity.
When two-bit triplet closed electromagnetic valve, two-bit triplet magnetic valve a communicates with r, and a is obstructed with p, so that plunger valve
Cavity communicates with air on the left of core, becomes atmospheric pressure.It reclaims Fig. 1 state again.
Schematic diagram when Fig. 1 is coaxial valve closed mode.Its principle is：When right briquetting 19 passes through pipeline with vavuum pump in figure
When being connected and starting vavuum pump, negative pressure of vacuum is produced in the right cavity of briquetting 19, while close when two-bit triplet magnetic valve is in
During state, the left side that negative pressure of vacuum can not be delivered to piston valve core 11 has in the cavity of 9 springs.Now two-bit triplet magnetic valve
Close, a mouths communicate with r mouths, and a mouths and p mouths are obstructed, so that the left side cavity of piston valve core 11 communicates with air, become air
Pressure, the rubber of the sealing edge of a knife and seal valve seat 17 on the right side of piston valve core 11 is then made by the spring force of valve core spring 9
Sealing gasket 13 compresses, so that coaxial valve sealing is closed.
The piston type vacuum coaxial valve using vacuum as power gas source of offer of the present utility model, without external connection power gas
Source, using vacuum as power source, i.e., the open and close without powerful solenoid controlled coaxial valve, but with low power
Whether is the transmission of the i.e. controllable negative pressure of vacuum of two-bit triplet magnetic valve, so as to realize the open and close of coaxial valve, consumes power
It is small, it is easy to operate.And the vacuum coaxial valve of big flow, valve work(according to vacuum pump flow rate size, can be manufactured and designed
It can not be influenceed by installation, be adapted to any angle and position installation.The structure design of balanced type, gas or other media can bidirectional flows
Dynamic control, regardless of shunt pressure and pressure difference factor, it is particularly suitable for the Valve controlling of high vacuum or high pressure.
Preferred embodiment of the present utility model has shown and described in described above, as previously described, it should be understood that this practicality is new
Type is not limited to form disclosed herein, is not to be taken as the exclusion to other embodiment, and available for various other groups
Conjunction, modification and environment, and above-mentioned teaching or the technology of association area can be passed through in utility model contemplated scope described herein
Or knowledge is modified.And the change and change that those skilled in the art are carried out do not depart from spirit and scope of the present utility model, then
All should be in the protection domain of the appended claims for the utility model.
Claims (10)
- A kind of 1. piston type vacuum coaxial valve using vacuum as power gas source, it is characterised in that：Including coaxial valve portion and electromagnetism Valve portion, the coaxial valve portion using vacuum as power source, including piston valve core, cylinder barrel, briquetting, sealing block, sealing ring, Seal valve seat, the electromagnetism valve portion include electromagnetic control apparatus；The piston valve core is tubular, is sleeved in cylinder barrel simultaneously And it can move back and forth；The side wall of the cylinder barrel has passage, and the both ends of the cylinder barrel are provided with sealing block, for close The packaging clearance sealed between piston valve core and cylinder barrel；The sealing block outer end is provided with briquetting, for compressing sealing block； The port of export of the piston valve core is also equipped with seal valve seat, for the port of sealing piston formula valve element；The Electromagnetic Control Device is connected by pipeline one end with cylinder barrel side wall, and the other end connects with the briquetting outside seal valve seat；The sealing ring is located at Contacting with each other on face between each part.
- 2. the piston type vacuum coaxial valve according to claim 1 using vacuum as power gas source, it is characterised in that：The work The outer wall of plug valve element has circular step, has annular ditch groove on the step, and the annular ditch groove is embedded, and to be cased with piston close Seal, the inwall of the piston packing and cylinder barrel is in sealing contact；Bullet is cased with the side wall of piston valve core entrance point Spring, the spring one end are against on sealing block, and the other end is against on circular step side.
- 3. the piston type vacuum coaxial valve according to claim 2 using vacuum as power gas source, it is characterised in that：The gas Cylinder barrel side wall has two passages, and two passages are respectively communicated with the space with piston valve core circular step both sides, wherein The passage of entrance point is connected by pipeline with electromagnetic control apparatus, and the passage of the port of export is connected with air.
- 4. the piston type vacuum coaxial valve according to claim 2 using vacuum as power gas source, it is characterised in that：It is described close Seal block has ring-shaped groove for middle porose round pie, the outer wall of the cake, and the groove is nested with flexible sealing ring, The elastic seal ring is resilient contacting sealing with briquetting inwall；The inwall of the interstitial hole has ring-shaped groove, the groove Flexible sealing ring is nested with, the sealing block is sleeved on the outer wall at the piston valve core both ends, the elastic seal ring It is resilient contacting sealing with plunger valve outer core；The section of the sealing block and the port of cylinder barrel offset；The port of export it is close The edge for sealing block also has the flanging to stretch out.
- 5. the piston type vacuum coaxial valve according to claim 4 using vacuum as power gas source, it is characterised in that：The pressure Block is located at the outside of the sealing block, has cylindrical fluid passage inside the briquetting, has step, structure inside the briquetting Into the cylindrical channel into 2-3 section different-diameters；The cylinder barrel, sealing block are sleeved in the barrel dliameter of briquetting；The import The inner most step of briquetting at end and the port of piston valve core offset；The briquetting side wall of the port of export has stomata, passes through Pipeline is connected with electromagnetic control apparatus；Fastening is bolted between the left and right briquetting block.
- 6. the piston type vacuum coaxial valve according to claim 4 using vacuum as power gas source, it is characterised in that：It is described close Envelope valve seat is round pie, and at its section edges and flanging end face of sealing block offsets, and has circle at round pie kernel of section Elastic sealing gasket, have a diameter larger than or the diameter equal to piston valve core, and elasticity is formed with the port of export of piston valve core Sealing；Some through holes are also distributed with the seal valve seat at the outer rim of elastic sealing gasket.
- 7. the piston type vacuum coaxial valve according to claim 6 using vacuum as power gas source, it is characterised in that：The work Plug cartridge outlet end is inner conical, and the edge of a knife is formed at the fascia edge of port, forms annular seal knife, the annular seal Knife and the elastic sealing gasket in seal valve seat center offset and are resilient sealing.
- 8. the piston type vacuum coaxial valve according to claim 5 using vacuum as power gas source, it is characterised in that：The electricity Magnetic controller includes：Two-bit triplet magnetic valve, magnetic valve spring, valve core of the electromagnetic valve；The two-bit triplet magnetic valve Single port It is connected with air, Single port connects with the passage at cylinder barrel entrance point end, and the passage of the briquetting of one end and the port of export connects It is logical.
- 9. the piston type vacuum coaxial valve according to claim 8 using vacuum as power gas source, it is characterised in that：It is described same When axle valve is opened, the passage of the cylinder barrel port of export is connected by pipeline, two-bit triplet magnetic valve with the briquetting of the port of export； When the coaxial valve is closed, the passage of the cylinder barrel entrance point passes through pipeline, two-bit triplet magnetic valve and atmosphere.
- 10. the piston type vacuum coaxial valve using vacuum as power gas source according to claim any one of 1-9, its feature exist In：Gas or other media in the coaxial valve can realize two-way flow control, and the fluid in entrance point pipeline is pressed to be positive Power or negative pressure of vacuum；When the valve is closed, vacuum and positive pressure pressure can be born without leaking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720747729.4U CN207018610U (en) | 2017-06-26 | 2017-06-26 | A kind of piston type vacuum coaxial valve using vacuum as power gas source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720747729.4U CN207018610U (en) | 2017-06-26 | 2017-06-26 | A kind of piston type vacuum coaxial valve using vacuum as power gas source |
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| Publication Number | Publication Date |
|---|---|
| CN207018610U true CN207018610U (en) | 2018-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720747729.4U Active CN207018610U (en) | 2017-06-26 | 2017-06-26 | A kind of piston type vacuum coaxial valve using vacuum as power gas source |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084276A (en) * | 2017-06-26 | 2017-08-22 | 南通虹登机械设备有限公司 | A kind of piston type vacuum coaxial valve using vacuum as power gas source |
| CN109632403A (en) * | 2018-12-06 | 2019-04-16 | 成都华科阀门制造有限公司 | A kind of gas collecting device |
-
2017
- 2017-06-26 CN CN201720747729.4U patent/CN207018610U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084276A (en) * | 2017-06-26 | 2017-08-22 | 南通虹登机械设备有限公司 | A kind of piston type vacuum coaxial valve using vacuum as power gas source |
| CN109632403A (en) * | 2018-12-06 | 2019-04-16 | 成都华科阀门制造有限公司 | A kind of gas collecting device |
| CN109632403B (en) * | 2018-12-06 | 2024-02-06 | 成都华科阀门制造有限公司 | Gas collection device |
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