CN202942544U - One-way charging valve - Google Patents
One-way charging valve Download PDFInfo
- Publication number
- CN202942544U CN202942544U CN 201220649892 CN201220649892U CN202942544U CN 202942544 U CN202942544 U CN 202942544U CN 201220649892 CN201220649892 CN 201220649892 CN 201220649892 U CN201220649892 U CN 201220649892U CN 202942544 U CN202942544 U CN 202942544U
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- China
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- hole
- valve body
- liquid nitrogen
- type valve
- way type
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- Expired - Fee Related
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- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The utility model relates to a one-way charging valve. One end of a three-way type valve body is connected with a liquid nitrogen tank, a choke plug is arranged at a corresponding tail end, the choke plug is fixed on the three-way type valve body, the other through hole is connected with an inner liquid storage tank, a thimble type valve core is arranged in the inner through hole which is connected with the liquid nitrogen tank, the front end of the thimble type valve core is a counter bored hole, the tail end of the thimble type valve core is a sealing head, a lateral through hole is formed in front of the sealing head and communicated with the counter bored hole, a matched conical surface or a first spherical surface is arranged on the contact portion of the sealing head and the inner through hole of the valve body, the back portion of the sealing head corresponds to the choke plug through a spring of a hole at the tail end, and a sealing pad is arranged between the choke plug and the valve body. The thimble type one-way charging valve is used for being connected with a liquid conveying flexible pipe and simultaneously pushing open a valve door, when charging of liquid nitrogen is completed and the liquid conveying flexible pipe is dismounted, the valve door is automatically closed, and so long as pressure exists between the liquid nitrogen tank and the inner liquid storage tank, the liquid nitrogen can be charged. The one-way charging valve is simple in structure, simple to operate, suitable for clinic, and capable of being connected with the liquid nitrogen tank in a butt mode fast and accurately.
Description
Technical field
This utility model relates to the nonstandard valve of fluid reservoir filling liquid nitrogen in liquid nitrogen cryotherapy machine machine, specifically unidirectional charging valve.
Background technology
The liquid nitrogen cryotherapy machine need to could be worked to the filling of the fluid reservoir in machine liquid nitrogen, generally can adopt unidirectional charging valve as intermediary interface, but inconvenient in use, need separately charging valve to be operated, especially medical personnel need quick and precisely docking, just can race against time and not the revealing of liquid nitrogen; When liquid nitrogen pressure hour just might stop to machine inner canister injection liquid nitrogen, the generation that can cause the accident.
Summary of the invention
This utility model is for can be quick and precisely and the jar docking of liquid nitrogen, and hour also can inject liquid nitrogen to fluid reservoir in the machine of liquid nitrogen cryotherapy machine in the force value of liquid nitrogen, specially proposes a kind of unidirectional charging valve.
For this reason, the technical solution of the utility model is that a kind of unidirectional charging valve comprises the three way type valve body, the three way type valve body is bolted on casing, wherein an end of three way type valve body is connected to the liquid nitrogen jar, and corresponding tail end is provided with plug, and plug is fixed on the three way type valve body, another through hole is connected to fluid reservoir in machine, it is characterized in that: be provided with the thimble-type spool in the inner via hole that connects the liquid nitrogen jar, thimble-type spool front end is counterbore, and tail end is seal head; Be provided with before seal head horizontal through hole and and counterbore perforation; Between seal head and valve body inner via hole, the contact position is provided with the conical surface or the sphere one of cooperation, and the rear portion of seal head is by the spring in the tail end hole and plug correspondence.
Improvement to such scheme is: the thimble-type spool stretches out the three way type valve hole, and the three way type valve body that connects the liquid nitrogen jar is provided with the docking screw thread outward, and the three way type valve hole is provided with the conical surface or the sphere two corresponding with coupling outward.
Improvement to such scheme is: be provided with sealing gasket between plug and three way type valve body.
Improvement to such scheme is: three way type valve body, spring, plug are to adopt rustless steel to make, and the thimble-type spool is to make with pyrite, and sealing gasket is made with red copper.
Improvement to such scheme is: between seal head and three way type valve body, the through hole of contact position is with 45 ~ 60 ° of inner conical surfaces, and seal head is 45 ~ 60 ° of male cone (strobilus masculinus)s that coordinate.
Beneficial effect:
It is to be fluid reservoir filling liquid nitrogen in liquid nitrogen cryotherapy machine machine that this utility model adopts the unidirectional charging valve of thimble-type, different from traditional hydraulically-controlled one-way valve door, not that pressure by liquid is opened valve, but back down valve when connecting infusion tube by the thimble-type spool; The thimble-type spool stretches out valve hole, is to open valve in order to allow infusion tube withstand the thimble-type spool; When liquid nitrogen filling complete, when infusion tube is pulled down, valve is autoshutdown, as long as have pressure to exist between fluid reservoir in liquid nitrogen jar and machine, can be to the machine inner canister liquid nitrogen of annotating.
Three way type valve body, spring, plug are to adopt rustless steel to make, and the thimble-type spool is to make with pyrite, and sealing gasket is made with red copper and utilized the sealing of copper to arrange.
Between seal head and three way type valve body, the through hole of contact position is with 45 ~ 60 ° of inner conical surfaces, and seal head is 45 ~ 60 ° of male cone (strobilus masculinus)s that coordinate, and is in order to increase sealing.
It is simple in structure, simple to operate be adapted to clinical, can be quick and precisely and the jar docking of liquid nitrogen.
Description of drawings
Fig. 1 is structure cutaway view of the present utility model.
Fig. 2 is user mode reference view of the present utility model.
In figure, 1 is the three way type valve body, the 2nd, and thimble-type spool, the 3rd, bolt, 4 cabinets, the 5th, spring, the 6th, sealing gasket, the 7th, plug, the 8th, counterbore, the 9th, through hole, the 10th, the conical surface or sphere one, the 11st, the interior fluid reservoir that picks, the 12nd, external screw thread, the 13rd, the conical surface or sphere two, the 14th, outer connected nut, the 15th, infusion tube.
The specific embodiment
This utility model as shown in Figure 1, 2.
A kind of unidirectional charging valve, comprise three way type valve body 1, three way type valve body 1 is fixed on casing 4 by bolt 3, wherein an end is connected to the liquid nitrogen jar, and corresponding tail end is provided with plug 7, and plug 7 is fixed on three way type valve body 1, another through hole is connected to fluid reservoir 11 in machine, be provided with thimble-type spool 2 in the inner via hole that connects the liquid nitrogen jar, thimble-type spool 2 front ends are counterbores 8, and tail end is seal head; Be provided with before seal head horizontal through hole 9 and and counterbore 8 perforations; Between seal head and three way type valve body inner via hole, the contact position is provided with the conical surface or the sphere 1 of cooperation, and the rear portion of seal head is by spring 5 and plug 7 correspondences in the tail end hole.
Thimble-type spool 2 stretches out valve hole, and the three way type valve body that connects the liquid nitrogen jar is provided with docking screw thread 12 outward, and three way type valve body 1 through hole is provided with the conical surface or the sphere two 13 corresponding with coupling outward.
Be provided with sealing gasket 6 between plug 7 and three way type valve body 1.
Three way type valve body 1, spring 5, plug 7 are to adopt rustless steel to make, and thimble-type spool 2 is to make with pyrite, and sealing gasket 6 use red coppers are made.
Between seal head and three way type valve body 1, the through hole of contact position is with 45 ~ 60 ° of inner conical surfaces, and seal head is 45 ~ 60 ° of male cone (strobilus masculinus)s that coordinate.
45 ~ 60 ° of conical surfaces on three way type valve body 1 and the sphere on spool be through facing-up, contacts under the combined effect of spring 5 and machine inner canister gas pressure, has high air-tightness.
During work as 2 figure, infusion tube 15 is pushed down thimble-type spool 2 to the joint of infusion tube 15 by outer connected nut 14, promotion thimble-type spool 2 overcomes spring 5 pressure and moves to left, the conical surface or sphere 2 13 and infusion tube 15 Butt sealings, form linear sealing, this moment, valve namely was opened, and liquid nitrogen just can be pressed into the interior fluid reservoir 11 that picks from infusion tube 15.
This utility model backs down valve by thimble-type spool 2 when three way type valve body 1 connects infusion tube 15, the liquid nitrogen filling completes, soft in transfusion, and 15 when pulling down, and valve is autoshutdown.As long as there is pressure to exist between liquid nitrogen transfer cask and machine inner canister, can be to machine inner canister filling liquid nitrogen.
Claims (5)
1. unidirectional charging valve, comprise the three way type valve body, the three way type valve body is bolted on casing, wherein an end of three way type valve body is connected to the liquid nitrogen jar, and corresponding tail end is provided with plug, and plug is fixed on the three way type valve body, another through hole is connected to fluid reservoir in machine, it is characterized in that: be provided with the thimble-type spool in the inner via hole that connects the liquid nitrogen jar, thimble-type spool front end is counterbore, and tail end is seal head; Be provided with before seal head horizontal through hole and and counterbore perforation; Between seal head and valve body inner via hole, the contact position is provided with the conical surface or the sphere one of cooperation, and the rear portion of seal head is by the spring in the tail end hole and plug correspondence.
2. a kind of unidirectional charging valve according to claim 1, it is characterized in that: the thimble-type spool stretches out the three way type valve hole, the three way type valve body that connects the liquid nitrogen jar is provided with the docking screw thread outward, and the three way type valve hole is provided with the conical surface or the sphere two corresponding with coupling outward.
3. a kind of unidirectional charging valve according to claim 1, is characterized in that: be provided with sealing gasket between plug and three way type valve body.
4. according to claim 1 and 2 or 3 described a kind of unidirectional charging valves is characterized in that: three way type valve body, spring, plug are to adopt rustless steel to make, and the thimble-type spool is to make with pyrite, and sealing gasket is made with red copper.
5. a kind of unidirectional charging valve according to claim 1, it is characterized in that: between seal head and three way type valve body, the through hole of contact position is with 45 ~ 60 ° of inner conical surfaces, seal head is 45 ~ 60 ° of male cone (strobilus masculinus)s that coordinate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220649892 CN202942544U (en) | 2012-12-02 | 2012-12-02 | One-way charging valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220649892 CN202942544U (en) | 2012-12-02 | 2012-12-02 | One-way charging valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202942544U true CN202942544U (en) | 2013-05-22 |
Family
ID=48418261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220649892 Expired - Fee Related CN202942544U (en) | 2012-12-02 | 2012-12-02 | One-way charging valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202942544U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107497550A (en) * | 2017-08-02 | 2017-12-22 | 嘉善县天成强磁有限责任公司 | The feed system of ceramic ball mill |
-
2012
- 2012-12-02 CN CN 201220649892 patent/CN202942544U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107497550A (en) * | 2017-08-02 | 2017-12-22 | 嘉善县天成强磁有限责任公司 | The feed system of ceramic ball mill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20151202 |
|
| EXPY | Termination of patent right or utility model |