CN103743172B - Air-conditioning refrigerant counterflow-preventing rushes safely dispensing device - Google Patents
Air-conditioning refrigerant counterflow-preventing rushes safely dispensing device Download PDFInfo
- Publication number
- CN103743172B CN103743172B CN201310746009.2A CN201310746009A CN103743172B CN 103743172 B CN103743172 B CN 103743172B CN 201310746009 A CN201310746009 A CN 201310746009A CN 103743172 B CN103743172 B CN 103743172B
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- Prior art keywords
- air
- conditioning
- steel ball
- refrigerant
- valve
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 57
- 239000003507 refrigerant Substances 0.000 title claims abstract description 52
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 33
- 239000010959 steel Substances 0.000 claims abstract description 33
- 125000006850 spacer group Chemical group 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims description 5
- 238000002347 injection Methods 0.000 abstract description 16
- 239000007924 injection Substances 0.000 abstract description 16
- 238000004080 punching Methods 0.000 abstract description 9
- 239000007789 gas Substances 0.000 abstract description 7
- 238000004891 communication Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000009469 supplementation Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The invention discloses a kind of air-conditioning refrigerant counterflow-preventing and rush safely dispensing device, rush the technical problem of dispensing device poor stability for solving existing air-conditioning refrigerant.Technical scheme is to add steel ball (3) and spacer pin (6) on the basis of air-conditioning refrigerant rushes dispensing device.Steel ball (3) and spacer pin (6) load the cavity of air-conditioning low pressure injection port (2) and form valve for preventing reverse-flow.Design due to valve for preventing reverse-flow, it is ensured that during cold-producing medium punching note, cold-producing medium can only be from refrigerant tank to air-conditioning low pressure injection port (2) one-way flow；Once incorrect link is to air-conditioning High voltage output port, owing in valve for preventing reverse-flow, steel ball (3) seals refrigerant flow paths, can end moment from the communication paths of High voltage output port to refrigerant tank, thus the refrigerant tank blast preventing gases at high pressure backflow from causing, improve air-conditioning refrigerant and rush the safety of dispensing device.
Description
Technical field
The present invention relates to a kind of air-conditioning refrigerant and rush dispensing device, particularly relate to a kind of air-conditioning refrigerant counterflow-preventing and rush safely
Dispensing device.
Background technology
After operation of air conditioner a period of time, the fault that cold-producing medium requires supplementation with often occurs.The interpolation of air-conditioning refrigerant needs
Injected by the low pressure injection port of air conditioning system.But, near low-pressure port, often have a similar high pressure
Output port.Owing to high and low pressure port in outward appearance and connects on interface closely similar, and traditional maintenance filling system
Lacking corresponding safety and Protection in cryogen attachment means, maintainer, in maintenance filling refrigerant process, can go out
Now should be connected to the cold-producing medium of low pressure injection port rush note equipment and be inadvertently coupled to High voltage output port, so that high pressure
Cold-producing medium is directly communicated to cold-producing medium Packaging Bottle, frequently occurs cold-producing medium Packaging Bottle blast person wound during causing punching note
Die accident.
According to statistics, rush note equipment owing to lacking the cold-producing medium possessing misconnection function of safety protection on domestic market,
Only 2013 1 year, certain famous brand name car air conditioner refrigerant domestic just there occurs that in maintenance process more than 20 play bottle explosion
Accident.
Summary of the invention
In order to overcome existing air-conditioning refrigerant to rush the deficiency of dispensing device poor stability, the present invention provides a kind of air-conditioning refrigerant
Counterflow-preventing rushes safely dispensing device.This device adds steel ball and spacer pin on the basis of air-conditioning refrigerant rushes dispensing device.Steel
Ball and spacer pin load the cavity of air-conditioning low pressure injection port and form valve for preventing reverse-flow.Due to the design of valve for preventing reverse-flow, permissible
During guaranteeing cold-producing medium punching note, cold-producing medium can only be from refrigerant tank to air-conditioning low pressure injection port one-way flow；Once wrong
It is inadvertently coupled to air-conditioning High voltage output port, due to steel ball sealing refrigerant flow paths in valve for preventing reverse-flow, defeated from high pressure
Go out port to refrigerant tank communication paths can moment cut-off, thus prevent the gases at high pressure refrigerant tank that causes of backflow quick-fried
Fried, air-conditioning refrigerant can be improved and rush the safety of dispensing device.
The technical solution adopted for the present invention to solve the technical problems is: a kind of air-conditioning refrigerant counterflow-preventing rushes safely note
Device, injects connectivity port 2, refrigerant tank connectivity port 4 and valve thimble 5 including rotary valve 1, air-conditioning low pressure,
Rotary valve 1 is connected with the afterbody of valve thimble 5, and the head of valve thimble 5 coordinates with refrigerant tank connectivity port 4,
Valve thimble 5 exits, and air-conditioning low pressure is injected connectivity port 2 and formed current path, valve with refrigerant tank connectivity port 4
Door thimble 5 advances, and air-conditioning low pressure injects the current path cut-out of connectivity port 2 and refrigerant tank connectivity port 4, its
Feature is: also include steel ball 3 and spacer pin 6.Steel ball 3 and spacer pin 6 load the sky of air-conditioning low pressure injection port 2
Chamber forms valve for preventing reverse-flow.Described air-conditioning low pressure injection port 2 is the cavity slightly larger than steel ball 3 diameter, to put into smoothly
Steel ball 3 is as the criterion, and the bottom of cavity is the semi-circular shape consistent with steel ball 3 curvature, coordinates with steel ball 3, one-way sealing
Current path.Cavities open direction threaded limited location pin 6, spacer pin 6 is hollow shape.Steel ball 3 and spacer pin 6
Between leave the gap passed through of supply stream.
The invention has the beneficial effects as follows: on the basis of air-conditioning refrigerant rushes dispensing device, add steel ball and spacer pin.Steel ball
The cavity loading air-conditioning low pressure injection port with spacer pin forms valve for preventing reverse-flow.Design due to valve for preventing reverse-flow, it is ensured that
During cold-producing medium punching note, cold-producing medium can only be from refrigerant tank to air-conditioning low pressure injection port one-way flow；Once mistake is even
It is connected to air-conditioning High voltage output port, due to steel ball sealing refrigerant flow paths in valve for preventing reverse-flow, from high-voltage output end
Mouth can end moment to the communication paths of refrigerant tank, thus the refrigerant tank preventing gases at high pressure backflow from causing explodes,
Improve air-conditioning refrigerant and rush the safety of dispensing device.
With detailed description of the invention, the present invention is elaborated below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the structural representation that air-conditioning refrigerant counterflow-preventing of the present invention rushes safely dispensing device.
Fig. 2 is the sectional view of Fig. 1.
In figure, 1-rotary valve, 2-air-conditioning low pressure injects connectivity port, 3-steel ball, 4-refrigerant tank connectivity port, 5-valve
Door thimble, 6-spacer pin.
Detailed description of the invention
With reference to Fig. 1-2.Air-conditioning refrigerant counterflow-preventing of the present invention rushes safely dispensing device and includes that rotary valve 1, air-conditioning low pressure are injected
Connectivity port 2, steel ball 3, refrigerant tank connectivity port 4 and valve thimble 5.When air-conditioning refrigerant punching note, first
Rotary valve 1 is outwarded winding, connects refrigerant tank connectivity port 4 and refrigerant tank, connect air-conditioning low pressure and inject connectivity port
2 and air-conditioning low-pressure port.Then screw rotary valve 1 so that valve thimble 5 penetrates refrigerant tank, unscrew rotation afterwards
Valve 1, makes refrigerant tank connectivity port 4 and air-conditioning low pressure inject between connectivity port 2 and forms path, and cold-producing medium is able to
Flow into air-conditioning low pressure injection port, carry out cold-producing medium punching note.
Air-conditioning refrigerant counterflow-preventing of the present invention rushes safely dispensing device to be increased valve for preventing reverse-flow on the basis of tradition rushes dispensing device and sets
Meter.Valve for preventing reverse-flow injects between connectivity port 2 and rotary valve 1 in air-conditioning low pressure.Implement is at tradition punching note
Adding steel ball 3 on the air-conditioning low pressure injection port 2 of device and the path of rotary valve 1, steel ball 3 and spacer pin 6 load
The cavity of air-conditioning low pressure injection port 2 forms valve for preventing reverse-flow.Air-conditioning low pressure injection port 2 is slightly larger than steel ball 3 diameter
Cavity, be as the criterion putting into steel ball 3 smoothly, the bottom of cavity is the semi-circular shape consistent with steel ball 3 curvature, with steel
Ball 3 coordinates, one-way sealing current path.Cavities open direction threaded limited location pin 6, spacer pin 6 is hollow
Shape.The gap that supply stream passes through is left between steel ball 3 and spacer pin 6.When normal punching note, gas is by refrigerant tank
Entering via rotary valve 1, gas pressure promotes steel ball that path is opened.When the connection that makes a mistake, cause air-conditioning low
When pressure injection inbound port 2 is connected to air-conditioning High voltage output port, air-conditioning high-voltage output end the gases at high pressure exported will promote
Steel ball moves to bottom so that the path cut-off between air-conditioning low pressure injection port 2 and rotary valve 1.Thus prevent height
The refrigerant tank blast that pressure gas backstreaming causes.
Apply above-mentioned air-conditioning refrigerant counterflow-preventing to rush safely dispensing device, air conditioning for automobiles is carried out cold-producing medium punching note, can be effective
Avoid the cold-producing medium Packaging Bottle explosion accident that the high and low pressure port misconnection caused due to operational error causes, and set
Meter is simple, effectively.
Claims (1)
1. air-conditioning refrigerant counterflow-preventing rushes safely a dispensing device, injects connect end including rotary valve (1), air-conditioning low pressure
Mouth (2), refrigerant tank connectivity port (4) and valve thimble (5), rotary valve (1) and the tail of valve thimble (5)
Portion is connected, and the head of valve thimble (5) coordinates with refrigerant tank connectivity port (4), and valve thimble (5) exits,
Air-conditioning low pressure is injected connectivity port (2) and is formed current path, valve thimble (5) with refrigerant tank connectivity port (4)
Advancing, air-conditioning low pressure injects the current path cut-out of connectivity port (2) and refrigerant tank connectivity port (4), and it is special
Levy and be: also include steel ball (3) and spacer pin (6)；Steel ball (3) and spacer pin (6) load air-conditioning low pressure and inject
The cavity of connectivity port (2) forms valve for preventing reverse-flow；It is slightly larger than steel ball that described air-conditioning low pressure injects connectivity port (2)
(3) cavity of diameter, is as the criterion putting into steel ball (3) smoothly, and the bottom of cavity is consistent with steel ball (3) curvature
Semi-circular shape, coordinates with steel ball (3), one-way sealing current path；Cavities open direction threaded limited location pin (6),
Spacer pin (6) is hollow shape；The gap that supply stream passes through is left between steel ball (3) and spacer pin (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310746009.2A CN103743172B (en) | 2013-12-30 | 2013-12-30 | Air-conditioning refrigerant counterflow-preventing rushes safely dispensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310746009.2A CN103743172B (en) | 2013-12-30 | 2013-12-30 | Air-conditioning refrigerant counterflow-preventing rushes safely dispensing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103743172A CN103743172A (en) | 2014-04-23 |
| CN103743172B true CN103743172B (en) | 2016-08-17 |
Family
ID=50500219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310746009.2A Expired - Fee Related CN103743172B (en) | 2013-12-30 | 2013-12-30 | Air-conditioning refrigerant counterflow-preventing rushes safely dispensing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103743172B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678442A (en) * | 2016-12-21 | 2017-05-17 | 佛山市顺德区鼎联智能科技有限公司 | Pipeline piercing valve |
| CN109028668A (en) * | 2017-06-08 | 2018-12-18 | 杭州致宏进出口有限公司 | A kind of car air conditioner refrigerant adding set |
| CN107642475B (en) * | 2017-08-08 | 2023-08-11 | 江苏昊科汽车空调有限公司 | Stable energy-saving automobile air conditioner compressor |
| CN110398096B (en) * | 2019-08-05 | 2020-12-22 | 南通市江海钢绳有限公司 | Adjustable punching injection head of air conditioner refrigerant filling machine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4576015A (en) * | 1983-04-14 | 1986-03-18 | Crawford A Gerrit | Lightweight high pressure tubular storage system for compressed gas and method for cryogenic pressurization |
| JPH0674615A (en) * | 1993-06-14 | 1994-03-18 | Nippon Piston Ring Co Ltd | Fluid charging connector |
| CN2632597Y (en) * | 2003-07-10 | 2004-08-11 | 刘万国 | Joint with fillig refrigerant |
| KR20090036305A (en) * | 2007-10-09 | 2009-04-14 | (주)피티씨 | Stopcork for refrigerant tank in chiller apparatus |
| CN102155826A (en) * | 2010-12-15 | 2011-08-17 | 赵敏 | One-way movable throttle valve and air-conditioning outdoor unit using same |
| CN202066264U (en) * | 2011-04-30 | 2011-12-07 | 林勇 | One-way liquid charging pipe |
| CN203704479U (en) * | 2013-12-30 | 2014-07-09 | 西安邮电大学 | Air-conditioner refrigerant safely filling device |
-
2013
- 2013-12-30 CN CN201310746009.2A patent/CN103743172B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4576015A (en) * | 1983-04-14 | 1986-03-18 | Crawford A Gerrit | Lightweight high pressure tubular storage system for compressed gas and method for cryogenic pressurization |
| JPH0674615A (en) * | 1993-06-14 | 1994-03-18 | Nippon Piston Ring Co Ltd | Fluid charging connector |
| CN2632597Y (en) * | 2003-07-10 | 2004-08-11 | 刘万国 | Joint with fillig refrigerant |
| KR20090036305A (en) * | 2007-10-09 | 2009-04-14 | (주)피티씨 | Stopcork for refrigerant tank in chiller apparatus |
| CN102155826A (en) * | 2010-12-15 | 2011-08-17 | 赵敏 | One-way movable throttle valve and air-conditioning outdoor unit using same |
| CN202066264U (en) * | 2011-04-30 | 2011-12-07 | 林勇 | One-way liquid charging pipe |
| CN203704479U (en) * | 2013-12-30 | 2014-07-09 | 西安邮电大学 | Air-conditioner refrigerant safely filling device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103743172A (en) | 2014-04-23 |
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Granted publication date: 20160817 |