CN2925404Y - Time-delayed air-source shutoff assembly - Google Patents
Time-delayed air-source shutoff assembly Download PDFInfo
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- CN2925404Y CN2925404Y CN 200620070503 CN200620070503U CN2925404Y CN 2925404 Y CN2925404 Y CN 2925404Y CN 200620070503 CN200620070503 CN 200620070503 CN 200620070503 U CN200620070503 U CN 200620070503U CN 2925404 Y CN2925404 Y CN 2925404Y
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Abstract
The utility model relates to a time-lag air source closing assembly, belonging to medical equipment technical field, which is mainly characterized in that: an assembly chamber attached with an axial stair through hole is connected with a one-way valve and an assembly valve in rotation and another end of the assembly valve is connected with an assembly interface in rotation. The assembly valve is provided with two stair holes communicated with the stair through holes which are respectively connected with a pressure-relief screw and an interface. An exhaust hole communicated with the axial through hole of the assembly valve is arranged between the two stair holes and the exhaust opening connected inside the exhaust hole in rotation forms two air passages and pressure-relief air passages from interface to interface of assembly and then from interface to the exhaust opening. The movement of a piston and a push rod under the function of air pressure decides the conduction and closing of the air passage so as to control the refrigeration probe air-source time-lag's closing. The utility model has the advantages of long service life, compact structure, low manufacturing cost, easy processing and being applicable to the matching with the refrigeration therapeutic apparatus and controlling the output of the refrigeration probe.
Description
Technical field
This utility model relates to a kind of time-delay source of the gas and turn-offs assembly, and supporting with medical cold therapy instrument, as to control its chiller probe time-delay release parts belong to technical field of medical instruments.
Background technology
Existing medical cold therapy instrument, utilization joule---Thomson effect cooling principle is with the CO of compression
2Gas reaches refrigerating purpose in the rapid expansion working heat absorption of a cold treatment probe end.Instead, apply the CO of certain pressure rapidly then at refrigerating cold treatment pen probe
2Gas must discharge heat (thawing), and when thawing because of cold treatment pen probe, pressure against the ends is up to the CO more than the 5.5MPa
2Gas, and this air pressure need turn-off high-pressure air source and release in the back time-delay a period of time of thawing, existing this time delayed turn-off release technology is by check valve, time-delay reset cylinder and two position three-way valve are formed, during work, gases at high pressure, are promoted the two position three-way valve stem movement by the push rod of time-delay reset cylinder and cause intake interface in check valve enters the time-delay reset cylinder by the interface of check valve---and the interface conducting of giving vent to anger, gases at high pressure are added on cold treatments pen pops one's head in; After the high-pressure air source of interrupting check valve, time-delay reset cylinder time-delay " t " resetted after the time, and two position three-way valve time delayed turn-off intake interface---the interface gas circuit of giving vent to anger is turned off, and the residual gas in the cryopencil is discharged by exhaust port by the interface of giving vent to anger.
Above-mentioned existing time delayed turn-off release assembly structure complexity, materials are many, cost is high, difficulty of processing is big, and because of the many fault rate height of assembly element, plant maintenance inconvenience.
Summary of the invention
The purpose of this utility model provides a kind of time-delay source of the gas and turn-offs assembly, solve existing time delayed turn-off release assembly above shortcomings, realize having the repertoire of three parts of former shutoff assembly, long service life, compact conformation, cost of manufacture is low, the advantage of easy processing.
The purpose of this utility model is achieved through the following technical solutions, a kind of time-delay source of the gas turn-offs assembly, it is characterized in that described shutoff assembly comprises the assembly cavity with axial step through hole, the check valve that assembly cavity one end spins, the assembly valve body that the assembly cavity other end spins and has the axial step through hole, the other end of the assembly valve body assembly interface that spins, assembly valve body side is at a distance of perpendicular to assembly valve body axial step through hole and two shoulder holes that communicate with ladder hole, release screw and interface spin respectively in two shoulder holes, the steam vent that communicates with assembly valve body axially extending bore between two shoulder holes, the air vent that spins in the steam vent, assembly cavity one end in the assembly valve body shoulder hole inwardly is provided with piston and push rod successively, stair-stepping piston path section periphery is nested with spring, and pad outwards is set in the tract of assembly valve body and assembly interface successively, airtight stopper and spring.
This utility model is by the check valve that spins at the assembly cavity two ends with axial step through hole, assembly valve body and at the other end of the assembly valve body assembly interface that spins, in the ladder tract of assembly valve body, be provided with by air pressure control pistons reciprocating and push rod, constitute assembly and be interfaced to interface, be interfaced to two air flues and the release air flue of air vent, piston and push rod moving under gas pressure, the conducting or the shutoff of decision air flue, thereby realized the source of the gas time delayed turn-off of control chiller probe, the utlity model has long service life, compact conformation, cost of manufacture is low, the advantage of easy processing, be applicable to the cold therapy instrument supporting, control chiller probe output.
Description of drawings
Fig. 1 is this utility model sectional structure sketch map;
Fig. 2 is that Figure 1A-A is to structural representation;
Among the figure, 1 interface, 2 sealing rings, 3 check valves, 4 airtight stoppers, 5 sealing rings, 6 springs, 7 assembly cavitys, 8 assembly valve bodies, 9 springs, 10 sealing rings, 11 pistons, 12 O type circles, 13 nuts, bolt, 15 push rods are regulated in 14 releases, 16 interfaces, 17 assembly interfaces, 18 airtight stoppers, 19 springs, 20 air vents, 21 nylon washers.
The specific embodiment
Further specify this utility model in conjunction with the accompanying drawings and embodiments, this utility model is by the assembly cavity 7 with axial step through hole, the check valve 3 that assembly cavity 7 one ends spin, the interface 1 that the outer end of check valve 3 spins, the assembly valve body 8 that the assembly cavity other end spins and has the axial step through hole, the other end of the assembly valve body 8 assembly interface 17 that spins, assembly valve body 8 sides are at a distance of perpendicular to assembly valve body axial step through hole and two shoulder holes that communicate with ladder hole, bolt 14 and interface 16 are regulated in the release that spins respectively in 8 liang of shoulder holes of assembly valve body, assembly cavity 7 one ends in assembly valve body 8 shoulder holes inwardly are provided with piston 11 and push rod 15 successively, stair-stepping piston 11 path section peripheries are nested with spring 9, in the tract of assembly valve body 8 and assembly interface 17 pad outwards are set successively, airtight stopper 18 and spring 19.
High-pressure air source is by 17 inputs of assembly interface during work, blocking-up because of airtight stopper 18, source of the gas can not be entered in the assembly by interface 17, at this moment interface 16 makes b-c become path by the centre bore of push rod 15 with air vent 20, when another road high-pressure air source when interface 1 enters, promote airtight stopper 4, make high-pressure air source enter in the assembly cavity 7 and promote piston 11 in the assembly valve body 8, piston 11 promotes push rod 15 opens airtight stopper 18, on the one hand airtight stopper 18 has been blocked push rod 15 centre bores and is made the b-c can not conducting, and the airtight stopper motion makes the a-b conducting on the other hand.
Behind interface 1 end-grain cutting broken height pressurized air source, gas can not be by the discharge of interface 1 end in the cavity 7 because the gases at high pressure of assembly cavity and the effect of 6 pairs of airtight stoppers 4 of spring make, and interface 1, valve pocket 3, airtight stopper 4, O type rubber ring 2,5, spring 6 have been finished the function of check valve so here.
The Compressed Gas CO of assembly cavity 7
2Discharge through the pressure relief vent that release is regulated under the bolt 14, along with the time changes, assembly cavity 7 internal gas pressures progressively descend, piston 11 push rods 15 are under the effect of spring 9,19, final homing, airtight stopper 18 is got back to original state in the assembly, thereby turn-offs interface 17 to the path between the interface 16, and turn-offs the a-b passage
Regulate the degree of tightness of bolt 14, be convenient to regulate the extraction flow of pressure relief vent, thereby change the time that assembly a-b communication channel delay turn-offs.
Between assembly interface 17 and the assembly valve body 8; Between interface 1 and the check valve body 3; Between check valve body 3 and the assembly cavity 7; Between assembly cavity 7 and the assembly valve body 8; Between piston 11 and the assembly valve body 8; O type rubber seal is housed, to reach the effect of sealing between push rod 15 and the assembly valve body 8 respectively.
Claims (7)
1, a kind of time-delay source of the gas turn-offs assembly, it is characterized in that described shutoff assembly comprises the assembly cavity with axial step through hole, the check valve that assembly cavity one end spins, the assembly valve body that the assembly cavity other end spins and has the axial step through hole, the other end of the assembly valve body assembly interface that spins, assembly valve body side is at a distance of perpendicular to assembly valve body axial step through hole and two shoulder holes that communicate with ladder hole, release screw and interface spin respectively in two shoulder holes, the steam vent that communicates with assembly valve body axially extending bore between two shoulder holes, the air vent that spins in the steam vent, assembly cavity one end in the assembly valve body shoulder hole inwardly is provided with piston and push rod successively, stair-stepping piston path section periphery is nested with spring, and pad outwards is set in the tract of assembly valve body and assembly interface successively, airtight stopper and spring.
2, time-delay source of the gas according to claim 1 turn-offs assembly, it is characterized in that the spring that is provided with in the axial centre tract of check valve by valve body, valve body, airtight stopper and the polytetrafluoroethylsealed sealed pad that spring contacts constitute.
3, time-delay source of the gas according to claim 1 turn-offs assembly, it is characterized in that the spin shoulder hole of release screw and interface of assembly valve body splits the end of assembly cavity in the end of nearly assembly interface in the corresponding assembly valve body and the assembly valve body.
4, time-delay source of the gas according to claim 1 turn-offs assembly, it is characterized in that the corresponding assembly valve body of the steam vent inner carrier path section position on the assembly valve body.
5, time-delay source of the gas according to claim 1 turn-offs assembly, it is characterized in that push rod has axial central through hole.
6, time-delay source of the gas according to claim 1 turn-offs assembly, it is characterized in that the pad of airtight stopper inner end in the assembly interface tract is polytetrafluoroethylsealed sealed pad, and polytetrafluoroethylsealed sealed pad forms the sealing notch automatically under the effect of pressure.
7, time-delay source of the gas according to claim 1 turn-offs assembly, it is characterized in that between assembly interface and the assembly valve body, between interface and the check valve body, between check valve and the assembly cavity, between assembly cavity and the assembly valve body, between piston and the assembly valve body; O type rubber seal is set respectively between push rod and the assembly valve body, reaches the effect of sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620070503 CN2925404Y (en) | 2006-03-18 | 2006-03-18 | Time-delayed air-source shutoff assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620070503 CN2925404Y (en) | 2006-03-18 | 2006-03-18 | Time-delayed air-source shutoff assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2925404Y true CN2925404Y (en) | 2007-07-25 |
Family
ID=38279632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620070503 Expired - Fee Related CN2925404Y (en) | 2006-03-18 | 2006-03-18 | Time-delayed air-source shutoff assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2925404Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110762266A (en) * | 2019-10-31 | 2020-02-07 | 山东中车华腾环保科技有限公司 | Gas circuit delay valve and full-pneumatic excrement collecting device and method |
| CN114576401A (en) * | 2022-03-17 | 2022-06-03 | 宁波广知电子科技有限公司 | Mechanical delay valve for fire-fighting system and operation method thereof |
-
2006
- 2006-03-18 CN CN 200620070503 patent/CN2925404Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110762266A (en) * | 2019-10-31 | 2020-02-07 | 山东中车华腾环保科技有限公司 | Gas circuit delay valve and full-pneumatic excrement collecting device and method |
| CN114576401A (en) * | 2022-03-17 | 2022-06-03 | 宁波广知电子科技有限公司 | Mechanical delay valve for fire-fighting system and operation method thereof |
| CN114576401B (en) * | 2022-03-17 | 2023-08-25 | 宁波广知电子科技有限公司 | Mechanical delay valve for fire-fighting system and operation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070725 Termination date: 20110318 |