CN206439477U - Take out valve in advance - Google Patents
Take out valve in advance Download PDFInfo
- Publication number
- CN206439477U CN206439477U CN201720033666.6U CN201720033666U CN206439477U CN 206439477 U CN206439477 U CN 206439477U CN 201720033666 U CN201720033666 U CN 201720033666U CN 206439477 U CN206439477 U CN 206439477U
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- valve body
- hole
- valve
- flange
- piston
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Abstract
The utility model provides one kind and takes out valve in advance, including valve body, inner side are provided with the body cap of step, and valve body is corresponding with the step of body cap, and valve body is included provided with piston in cavity, cavity, and one end of piston rod is connected with piston, and the other end is connected with cylinder；Valve body first end is provided with first through hole, it is mutually perpendicular to being arranged on second through hole at the end of valve body second, the end of valve body second is connected with setting porose first flange, first hole is connected with work chamber, the end of valve body the 3rd is connected with setting porose second flange, and O-ring seal is provided between second flange and the end of valve body second；Spring is provided between piston and body cap, the first sealing ring is provided between piston and valve body, the second sealing ring is provided between piston rod and body cap；The utility model plays a part of isolation cavity and cylinder by the elastic deformation of spring, realizes the sealing compensation in cavity, and sealing is strong, reduces the abrasion of equipment, the service life of prolonged mechanical pump.
Description
Technical field
The utility model is related to the accessory of machinery industry molecular distillation equipment, and in particular to one kind takes out valve in advance.
Background technology
Molecular distillation is a kind of new isolation technics, has been widely used now.Molecular distillation is that vacuum is steamed
A type of system is evaporated, vacuum distillation system is generally divided into vacuum distillation, vacuum distillation, high vacuum distillation, short-path distillation etc.,
At present, the realization of molecular distillation must assure that work chamber is in vacuum state, so ensureing that the vacuum state of chamber is particularly weighed
Will, the actual conditions of the vacuum in work chamber determine whether still-process is smooth, and vacuum relies on working machine pump,
The vacuum in work chamber is set to reach the requirement of work, mechanical pump undertakes the operation to being vacuumized in work chamber, extraction
Vacuum is atmospheric pressure 10-1Pa, mechanical pump assume responsibility for normal atmospheric pressure treatment to relatively initial vacuum state, i.e., big
Air pressure 10-1Pa, therefore when extracting the vacuum state of work chamber, working machine pump frequently, easily breaks down, and in work chamber
The problem of vacuum, directly influence whether still-process can be smoothed out, be provided with production practices, in mechanical pump and take out valve in advance,
Take out valve in advance easily to break down, influence the work of mechanical pump；It is leakage problem to cause the pre- main cause for taking out valve failure, due to pre-
Take out valve and there is leakage point, cause atmospheric pressure to enter from leakage point by pressure differential in work chamber, cause working chamber house vacuum to be imitated
It is really poor, ultimately cause extraction vacuum time it is long because extract time it is long, mechanical pump for a long time work continuously, cause machine
The abrasion of tool pump is big, faults frequent, causes pre- valve of taking out to there is the generation being primarily due in work chamber leaked at present
Impurity, absorption taking out the surface of the parts such as valve body, the cylinder piston rod of valve in advance, with cylinder, piston rod reciprocating linear transport
It is dynamic, impurity is gathered in pre- taking out in valve core, and the friction to part is formed in the presence of air-flow, ultimately result in pre- valve of smoking
, there is leakage point in sealing part abrasion, deterioration, cause air to be flowed to by pressure, automatically into the cavity of working chamber, cause to take out
Take vacuum time long, mechanical pump continues work, parts depreciation aggravation, especially sealing device attrition are big, faults frequent.
Utility model content
In order to overcome defect present in above-mentioned prior art, the utility model provides one kind and takes out valve in advance, effective solution
Mechanical pump determined when extracting vacuum to the work chamber of distillation equipment, because take out the leakage of valve in advance and caused by the vacuum drawn time
It is long, the problem of causing equipment attrition.
The utility model provides one kind and takes out valve, including valve body, body cap in advance, and the inner side of the body cap is provided with step,
The valve body first end of the valve body is corresponding with step, and the valve body includes cavity, is provided with piston in the cavity, the piston with
One end connection of piston rod, the other end of piston rod is connected with cylinder, and the cylinder is connected with body cap；Valve body first end is provided with
First through hole, the end of valve body second is provided with the second through hole, and the first through hole is mutually perpendicular to the second through hole；The end of valve body second and the
One flange is connected, and the first flange is provided with the first hole corresponding with first through hole, and first hole is connected with work chamber；
The end of valve body the 3rd is connected with second flange, and the second flange is provided with the second hole corresponding with the second through hole, second method
O-ring seal is provided between the blue and end of valve body second；One end of spring is against the first position of body cap, and the other end is against piston
With the link position of piston rod；The first sealing ring is provided between the piston and valve body, is set between the piston rod and body cap
There is the second sealing ring；
First sealing ring and the second sealing ring use bowl-type circle.
The cylinder uses mode connects for screw with body cap.
Mode connects for screw is used between the valve body and body cap.
Mode connects for screw is used between the end of valve body second and first flange.
Mode connects for screw is used between the end of valve body the 3rd and second flange.
By adopting the above-described technical solution, compared with prior art, the utility model provides one kind and takes out valve, this reality in advance
Play a part of completely cutting off cavity and cylinder by the elastic deformation of spring with new pre- valve of taking out, realize the sealing compensation in cavity,
Sealing is strong, it is not easy to leak point occur, it is to avoid because in advance take out valve leakage and caused by the vacuum drawn time it is long, vacuum difference etc.
Problem, the utility model reduces the abrasion of equipment, extends mechanical pump service life, and the utility model is easy to make,
Material is cheap, reduces making and processing cost.
Brief description of the drawings
Fig. 1 is the utility model closure state structural representation；
Fig. 2 is the utility model open mode structural representation；
Reference：
1st, valve body 2, body cap 3, step 4, valve body first end 5, cavity 6, piston
7th, piston rod 8, cylinder 9, the second end of valve body 10, first through hole 11, the end of valve body the 3rd
12nd, the second through hole 13, first flange 14, the first hole 15, second flange
16th, the second hole 17, spring 18, body cap first position 19, the first sealing ring
20th, the second sealing ring 21, work chamber.
Embodiment
Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.It should be noted that herein
Described embodiment is merely to illustrate and explained the utility model, is not limited to the utility model.
As shown in Figure 1 and Figure 2, the utility model provides one kind and takes out valve, including valve body 1, body cap 2, the body cap in advance
2 inner side is provided with step 3, and the valve body first end 4 of the valve body 1 is corresponding with step 3, and is fixed with screw, the valve body 1
Including cavity 5, piston 6 is provided with the cavity 5, the piston 6 is connected with one end of piston rod 7, the piston rod 7 it is another
End is connected with cylinder 8, and the cylinder 8 uses mode connects for screw with body cap 2；The second end of valve body 9 is provided with first through hole 10, valve body the
Three ends 11 are provided with the second through hole 12, and the first through hole 10 is mutually perpendicular to the second through hole 12；The second end of valve body 9 and first flange
13 use mode connects for screw, and the first flange 13 is provided with first hole 14 corresponding with first through hole 10, first hole 14 with
Work chamber 21 connects；The end 11 of valve body the 3rd and second flange 15 use mode connects for screw, and the second flange 15 is provided with and the
Corresponding second hole 16 of two through hole 12, is provided with O-ring seal between the second flange 15 and the end 11 of valve body the 3rd；Spring 17
One end is against body cap first position 18, and the other end is against the link position of piston 6 and piston rod 7；The piston 6 and valve body 1
Between be provided with the first sealing ring 19, between the piston rod 7 and body cap 2 be provided with the second sealing ring 20, first sealing ring
19th, the second sealing ring 20 uses bowl-type circle.Operation principle of the present utility model：In use, cylinder 8 is moved back and forth, because bullet
The elastic deformation of spring 17, so spring 17 stretches with the motion of cylinder, makes piston 6 reciprocating, by work chamber 21
Air extract, the air of extraction is discharged from the second through hole 12, the second hole 16, work chamber 21 is realized vacuum state,
So as to smoothly complete still-process.In addition, when the air of pump tool pumping work chamber 21, accumulating in work chamber 21
Impurity particle, can along through hole enter it is pre- take out in valve, be gathered in the cavity 5 of valve body 1, due to spring 17, seal assembly
Effect, isolation impurity particle cannot be introduced into cylinder 8, so as to reach the pre- sealing for taking out valve of protection, the effect of prevent leakage；I.e.
Make have partial impurities particle in the case where extracting vacuum pneumatic effect, enter mechanical pump by taking out valve in advance, because mechanical pump was provided with
Device is filtered, the damage to mechanical pump is not resulted in.
In summary, the utility model effectively solves mechanical pump when to extracting vacuum in work chamber, because taking out in advance
The vacuum drawn time that valve is leaked and caused is long, the problems such as vacuum is poor, reduces the abrasion of equipment, the use of prolonged mechanical pump
Life-span.
Preferred embodiment of the present utility model is described in detail above in association with accompanying drawing, still, the utility model is not limited to
The detail in embodiment is stated, can be to technical side of the present utility model in range of the technology design of the present utility model
Case carries out a variety of simple variants, and these simple variants belong to protection domain of the present utility model.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, it can be combined by any suitable means, in order to avoid unnecessary repetition, how each the utility model is
Possible combination is planted no longer separately to illustrate.
In addition, can also be combined between a variety of embodiments of the present utility model, as long as it is not disobeyed
Thought of the present utility model is carried on the back, it should equally be considered as content disclosed in the utility model.
Claims (6)
1. one kind takes out valve, including valve body (1), body cap (2) in advance, it is characterised in that：The inner side of the body cap (2) is provided with step
(3), the valve body first end (4) of the valve body (1) is corresponding with step (3), and the valve body (1) includes cavity (5), the cavity
(5) piston (6) is provided with, the piston (6) is connected with one end of piston rod (7), the other end and cylinder of the piston rod (7)
(8) connect, the cylinder (8) is connected with body cap (2)；The end of valve body second (9) is provided with first through hole (10), the end of valve body the 3rd
(11) the second through hole (12) is provided with, the first through hole (10), the second through hole (12) are mutually perpendicular to；The end of valve body second (9) and the
One flange (13) is connected, and the first flange (13) is provided with the first hole (14) corresponding with first through hole (10), described first
Hole (14) is connected with work chamber (21)；The end (11) of valve body the 3rd is connected with second flange (15), on the second flange (15)
Provided with the second hole (16) corresponding with the second through hole (12), O is provided between the second flange (15) and the end (11) of valve body the 3rd
Type sealing ring；One end of spring (17) is against body cap first position (18), and the other end is against piston (6) and piston rod (7)
Link position；The first sealing ring (19), the piston rod (7) and body cap (2) are provided between the piston (6) and valve body (1)
Between be provided with the second sealing ring (20).
2. pre- valve is taken out according to claim 1, it is characterised in that：First sealing ring (19) and the second sealing ring (20)
Use bowl-type circle.
3. pre- valve is taken out according to claim 1, it is characterised in that：The cylinder (8) is connected with body cap (2) using screw
Connect.
4. pre- valve is taken out according to claim 1, it is characterised in that：The valve body (1) is connected with body cap (2) using screw
Connect.
5. pre- valve is taken out according to claim 1, it is characterised in that：The end of valve body second (9) is adopted with first flange (13)
Use mode connects for screw.
6. pre- valve is taken out according to claim 1, it is characterised in that：Adopted with second flange (15) at the end (11) of valve body the 3rd
Use mode connects for screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720033666.6U CN206439477U (en) | 2017-01-12 | 2017-01-12 | Take out valve in advance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720033666.6U CN206439477U (en) | 2017-01-12 | 2017-01-12 | Take out valve in advance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206439477U true CN206439477U (en) | 2017-08-25 |
Family
ID=59642809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720033666.6U Expired - Fee Related CN206439477U (en) | 2017-01-12 | 2017-01-12 | Take out valve in advance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206439477U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108868522A (en) * | 2018-06-30 | 2018-11-23 | 安徽安旺门业股份有限公司 | A kind of dust protected fire window |
-
2017
- 2017-01-12 CN CN201720033666.6U patent/CN206439477U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108868522A (en) * | 2018-06-30 | 2018-11-23 | 安徽安旺门业股份有限公司 | A kind of dust protected fire window |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170825 Termination date: 20210112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |