CN1945074B - Control valve of automobile air conditioner refrigerant replacing device - Google Patents
Control valve of automobile air conditioner refrigerant replacing device Download PDFInfo
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- CN1945074B CN1945074B CN2006101176209A CN200610117620A CN1945074B CN 1945074 B CN1945074 B CN 1945074B CN 2006101176209 A CN2006101176209 A CN 2006101176209A CN 200610117620 A CN200610117620 A CN 200610117620A CN 1945074 B CN1945074 B CN 1945074B
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- valve
- control valve
- refrigeration agent
- spool
- automobile air
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Abstract
The present invention is one kind of control valve for automobile air conditioner refrigerant replacing device, and belongs to the field of refrigerating machine technology. The control valve is set in the refrigerant passage inside the refrigerant replacing device. It includes one valve body fixed onto the refrigerant replacing device, one valve rod penetrating the valve body, one handle fixed to the outer end of the valve rod, one spherical valve core fixed to the inner end of the valve rod and with through hole, and sealing gaskets. The control valve has simple structure, good sealing effect and simple operation.
Description
Technical field
The invention belongs to the refrigerating machine technical field, relate to more changing device of a kind of automobile air-conditioning refrigeration agent, particularly a kind of automobile air-conditioning refrigeration agent is the control valve of changing device more.
Background technique
In the automobile refrigerating system, the High Temperature High Pressure refrigerant vapor of coming out from compressor enters condenser by high pressure hose; Because the outer temperature of car is lower than the refrigerant temperature that enters condenser, by means of the effect of condenser fan, most of heat of the refrigeration agent that flows in condenser is taken away by the car outer air, thereby high temperature and high pressure gas is condensed into the liquid of High Temperature High Pressure.When this high temperature high pressure liquid flows through throttle expansion valve, because throttling action, volume becomes big suddenly and step-down, the fog-like liquid that becomes low-pressure low-temperature enters vaporizer, and under level pressure, vaporize, because the temperature when refrigeration agent is vaporized in pipe is lower than circulating wind in the car outside the evaporator tube, so heat in its energy absorption tube outer air, thereby the air temperature of the vaporizer of flowing through is reduced, thereby produce the refrigeration cool-down effect, the refrigerant vapor of having vaporized is become high temperature and high pressure gas by compressor suction compression, finishes the circulation of a refrigeration system.Therefore, the permanent refrigeration agent that uses waits the effect reduction that makes refrigeration, the refrigeration agent that need more renew because a variety of causes such as impurity enter.
Common refrigeration agent discharging recharging device as shown in Figure 1, Fig. 1 is the schematic perspective view of general refrigerant discharging recharging device, it has comprised a body 1, be provided with a low-voltage tube 4 and a high-voltage tube 5 at body 1, low-voltage tube 4 links to each other with the Auxiliary valves (suction service valve) of compressor input end, high-voltage tube 5 is connected with the Auxiliary valves (discharge service valve) of compressor output end, a conduit 6 is arranged between low-voltage tube 4 and high-voltage tube 5, conduit 6 is provided with control valve 7, the break-make that has valve 3 to control between them between low-voltage tube 4 and the conduit 6, the break-make that has valve 2 to control between them between high-voltage tube 5 and the conduit 6, two meters (8,9) be connected with high-voltage tube 5 with low-voltage tube 4 respectively; Between two control valves (2,3), also have a squint 1b, can observe the inside by it and whether also have remaining refrigeration agent.
The structure of two control valves (2,3) is an example with the valve 5 of controlling high-voltage tube as shown in Figure 2, is provided with threaded passage one 5a and threaded passage two 6a on body 1, and passage one 5a is connected with high-voltage tube 5, and passage two 6a are connected with conduit 6; Body 1 is provided with a chamber, this chamber is connected with through hole 1a with passage two 6a with passage one 5a, that chamber and through hole 1a intersect is sealing surface 1c, be provided with compressing tablet 1 and compressing tablet 2 14 in sealing surface 1c top, bottom at sealing surface 1c establishes a receiving cavity in addition, spring 12 and supporting element 15 are placed in this receiving cavity, and valve rod 12 movable screw are connected on the fixed block 10 that is connected with body 1.When valve rod 11 moves down, compressing tablet under the extruding of valve rod 11 with sealing surface 1c closure, realize sealing.When valve rod 11 moved up, compressing tablet separated with sealing surface 1c under the active force of spring 12, valve 5 conductings.
Valve arrangement for this common refrigerant replacing device exists following shortcoming: 1, the compressing tablet of the plastic production resistance that overcomes spring under the promotion of valve rod moves towards sealing surface, when contacting with sealing surface, the plastics compressing tablet just forms sealing effect, find out easily, this poor sealing performance, and valve rod is the central position of roof pressure at compressing tablet, break phenomenon that compressing tablet tilts sometimes can taking place and can produce through post use plastic compressing tablet repeatedly, this sealing configuration has just lost sealability.2, sealing mechanism has used parts such as valve rod, two compressing tablets, spring, fixed block, and number of spare parts is more, makes assembling become loaded down with trivial details.3, valve rod and fixed block have increased the cost of processing technology to be threaded.4, a few could allow control valve open or close troublesome poeration to need handle with sleeve.5, when being in the state of closing or opening at control valve, two recessed protrusions of handle influence outward appearance.
Summary of the invention
The objective of the invention is at existing automobile air-conditioning refrigeration agent more the above-mentioned technical problem that exists of the control valve of changing device a kind of good airproof performance is provided, simple in structure, assembling is easy to the more control valve of changing device of automobile air-conditioning refrigeration agent.
Purpose of the present invention can realize by following technical proposal: a kind of automobile air-conditioning refrigeration agent is the control valve of changing device more, be arranged on the coolant channel of changing in the device body, comprise the valve body that is fixed on the body, the valve rod that passes valve body and the handle that is connected with the valve rod outer end, it is characterized in that, the spool of a sphere is being fixed in described valve rod the inner, through hole is arranged on the spool, spool is on the above-mentioned coolant channel, and be provided with the sealing gasket that seals between the passway of spool and its both sides, sealing gasket is close on the edge of spool and passway.
In this control valve, when the through hole on the spool forwards to when being communicated with coolant channel, refrigeration agent can pass through control valve, control valve conducting.Other surfaces of passway and spool contact when through hole is not communicated with coolant channel, and refrigeration agent can not pass through control valve, and control valve ends.The valve rod that handle with sleeve and handle are connected just drives valve core rotation, thereby the conducting that realizes above-mentioned control valve ends.Sealing gasket can play good seal action, prevents the leakage of refrigeration agent.The automobile air-conditioning refrigeration agent more the right and left of changing device be respectively equipped with above-mentioned two identical control valves.
More in the control valve of changing device, also be provided with the limit structure of restriction valve rod rotation angle in above-mentioned automobile air-conditioning refrigeration agent between described handle and the body.Limit structure is the rotation angle when being used for limiting the control valve opening and closing, limits it and continue to rotate in the same way when forwarding maximum open degree to, limits it when closing fully and continues to rotate in the same way when forwarding to.The phenomenon that the dislocation of the passage on through hole and side opening and the body is communicated with so can not take place, as the side opening on the valve rod and the channel connection of changing device more, and through hole one end and measurement channel connection at this moment, the inner side surface of the other end and body contacts.This limit structure can also allow the operator know complete opening or close easy-to-operat.
In above-mentioned automobile air-conditioning refrigeration agent more in the control valve of changing device, described limit structure is for being provided with a bearing pin on described body, be provided with the block one and the block two that can contact with bearing pin in the bottom of described handle, above-mentioned bearing pin is between block one and the block two.When bearing pin contacted with one of them block, control valve was opened to maximum; When bearing pin contacted with another block, control valve was then closed fully.Handle with sleeve, handle drive valve core rotation, and when the channel connection of through hole and changing device more, the block of handle bottom has been stoped by pin, the operator is learnt be opened to maximum; In like manner, the counter-rotation handle, another block of handle bottom has been stoped by pin, the operator is learnt fully close.
More in the control valve of changing device, be provided with seal ring between described body and the valve body in above-mentioned automobile air-conditioning refrigeration agent.The sealing circle is pressed on the body of changing device more by valve body.Seal ring plays seal action, even the through hole from the spool and more leak out the sub-fraction refrigeration agent between the passage of changing device and can play seal action by the sealing measure.
More in the control valve of changing device, be provided with seal ring between described valve body and the valve rod in above-mentioned automobile air-conditioning refrigeration agent.Described seal ring can also stop refrigeration agent to spill between flange and seal ring, has increased the sealing effect of control valve.
More in the control valve of changing device, described spool also has a side opening that is connected with described through hole in above-mentioned automobile air-conditioning refrigeration agent.This side opening is to be used for being connected with the passage of meter.When the control valve conducting, the passage of meter and side opening are communicated with, side opening again with the through hole of spool together with, meter just can measure some desired values of refrigeration agent on this path like this.
More in the control valve of changing device, described valve rod and spool joint are provided with flange in above-mentioned automobile air-conditioning refrigeration agent.Therefore seal ring is set in the valve rod, and the seal ring that internal diameter is bigger is easy to deviate from from valve rod, is provided with a flange, can prevent that seal ring from deviating from.
In above-mentioned automobile air-conditioning refrigeration agent more in the control valve of changing device, the both sides of described sealing gasket respectively with the form fit of spool and passway.Can increase sealability like this, make refrigeration agent be difficult for leaking.
Compared with prior art, automobile air-conditioning refrigeration agent of the present invention more the control valve of changing device have the following advantages:
1, is provided with sealing gasket between the passway of spool and its both sides, when valve core rotation, can make refrigeration agent can not reveal outflow, except the sealing of sealing gasket, also be provided with valve body and the seal ring that is provided with of the body of changing device more, the seal ring that is provided with between valve body and the valve rod, all increased sealing effect, therefore good seal performance of the present invention.
2, the automobile air-conditioning refrigeration agent more changing device control valve only used these common valve class parts of valve body, valve rod spool and sealing gasket, number of spare parts is few, and valve rod and spool be connected as a single entity, simple in structure, assembling easily.
3, do not use between valve body and the valve rod and be threaded, and seal ring just is set between valve rod and valve body, manufacturing is easy, and all is common valve class part, and cost is low.
Rotation angle when 4, limit structure is used for limiting the control valve opening and closing limits it and rotates when forwarding maximum open degree to, limit it when closing fully and rotate when forwarding to.Like this as long as rotating an angle just can realize the unlatching of control valve or close, and easy perception complete opening or close whether, convenient to operation.
Description of drawings
Fig. 1 is the more schematic perspective view of changing device of automobile air-conditioning refrigeration agent.
Fig. 2 is the more original structure schematic representation of the control valve of changing device of automobile air-conditioning refrigeration agent.
Fig. 3 is the more horizontal sectional structure schematic representation of the control valve of changing device of automobile air-conditioning refrigeration agent of the present invention.
Fig. 4 is the more partial vertical sectional structure schematic representation of the control valve of changing device of automobile air-conditioning refrigeration agent of the present invention.
Among the figure, 1, body; 1a, through hole; 1b, squint; 1c, sealing surface; 2, valve; 3, valve; 4, low-voltage tube; 5, high-voltage tube; 5a, passage one; 6, conduit; 6a, passage two; 7, control valve; 8, meter; 9, meter; 10, fixed block; 11, valve rod; 12, spring; 13, compressing tablet 1, compressing tablet two; 15, supporting element; 16, passage; 17, handle; 18, through hole; 19, side opening; 20, spool; 21, sealing gasket; 22, flange; 23, seal ring; 24, valve rod; 25, seal ring; 26, bearing pin; 27a, block one; 27b, block two; 28, valve body.
Embodiment
As shown in Figure 3 and Figure 4, the agent of this automobile air-conditioning refrigeration is the control valve of changing device more, is arranged on the coolant channel of changing in the device body 16, comprises valve body 28, valve rod 24 and the handle 17 that is connected with valve rod 24 outer ends.Valve body 28 is connected on the body of changing device more by screw thread.Also be provided with a bearing pin 26 on the described body, be provided with block one 27a and block two 27b that can contact with bearing pin 26 in the bottom of described handle 17, above-mentioned bearing pin 26 is between block one 27a and block two 27b.When bearing pin 26 contacted with block one 27a, control valve was opened to maximum; When bearing pin 26 contacted with block two 27b, control valve was then closed fully.Handle with sleeve 17, handle 17 drive spools 20 and rotate, when through hole 18 when more the passage 16 of changing device is communicated with, block one 27a of handle 17 bottoms has been stoped by bearing pin 26, the operator is learnt be opened to maximum; In like manner, counter-rotation handle 17, block two 27b of handle 17 bottoms have been stoped by bearing pin 26, the operator is learnt fully close.
Described valve rod 24 passes valve body 28, and the spool 20 of a sphere is being fixed in its inner, and through hole 18 is arranged on the spool 20, and spool 20 is on the above-mentioned coolant channel 16.The valve rod 24 that handle with sleeve 17 and handle 17 are connected just drives spool 20 and rotates; Refrigeration agent can pass through control valve, control valve conducting when this through hole 18 and when more the passage 16 of changing device is communicated with; When this through hole 18 when more the passage 16 of changing device is not connected more other surfaces of the passway of changing device and spool 20 contact, refrigeration agent can not pass through control valve, control valve ends.Described spool 20 also has a side opening 19, and it communicates with through hole 18 on the described spool 20.This side opening 19 is to be used for being connected with the passage 16 of meter.When the control valve conducting, the passage of temperature, pressure table and side opening 19 is communicated with, side opening 19 again with the through hole 18 of spool 20 together with, the temperature, pressure table just can measure the numerical value of the temperature, pressure of refrigeration agent on this path like this.Also be provided with flange 22 on the valve rod 24.Therefore seal ring 23 is to be enclosed within the valve rod 24, and the seal ring 23 that internal diameter is bigger is easy to deviate from from valve rod 24, is provided with a flange 22, can prevent that seal ring 23 from deviating from.
Be provided with the sealing gasket 21 that seals between the passway of spool 20 and its both sides, sealing gasket 21 is close on the edge of spool 20 and passway.The sealing gasket 21 that is provided with between the passway of spool 20 and its both sides can play good seal action, prevents the leakage of refrigeration agent.
The both sides of sealing gasket 21 respectively with the form fit of spool 20 and passway.Can increase sealability like this, make refrigeration agent be difficult for leaking.
Originally more changing device is contained in the automobile refrigerating system, and two control valves are closed when not using.During use, a control valve is closed, and another control valve is opened, and refrigeration agent is got rid of enter in the recovering container, closes control of turning valve just now then conversely, and the control valve of open and close pours into new refrigeration agent, closes all control valves after finishing.
Claims (8)
1. the automobile air-conditioning refrigeration agent control valve of changing device more, be arranged on the coolant channel of changing in the device body (16), comprise the valve body (28) that is fixed on the body, pass the valve rod (24) of valve body (28) and the handle (17) that is connected with valve rod (24) outer end, it is characterized in that, the spool (20) of a sphere is being fixed in described valve rod (24) the inner, through hole (18) is arranged on the spool (20), spool (20) is on the above-mentioned coolant channel (16), and be provided with the sealing gasket (21) that seals between the passway of spool (20) and its both sides, sealing gasket (21) is close on the edge of spool (20) and passway; Also be provided with the limit structure of restriction valve rod (24) rotation angle between described handle (17) and the body.
2. automobile air-conditioning refrigeration agent according to claim 1 is the control valve of changing device more, it is characterized in that, described limit structure is for being provided with a bearing pin (26) on described body, be provided with the block one (27a) and the block two (27b) that can contact with bearing pin (26) in the bottom of described handle (17), above-mentioned bearing pin (26) is between block one (27a) and the block two (27b).
3. automobile air-conditioning refrigeration agent according to claim 1 and 2 is the control valve of changing device more, it is characterized in that, is provided with seal ring (23) between described body and the valve body (28).
4. automobile air-conditioning refrigeration agent according to claim 1 and 2 is the control valve of changing device more, it is characterized in that, is provided with seal ring (25) between described valve body (28) and the valve rod (24).
5. automobile air-conditioning refrigeration agent according to claim 3 is the control valve of changing device more, it is characterized in that, is provided with seal ring (25) between described valve body (28) and the valve rod (24).
6. automobile air-conditioning refrigeration agent according to claim 5 is the control valve of changing device more, it is characterized in that, described spool (20) also has a side opening (19) that is connected with described through hole (18).
7. automobile air-conditioning refrigeration agent according to claim 6 is the control valve of changing device more, it is characterized in that, described valve rod (24) is provided with flange (22) with spool (20) joint.
8. automobile air-conditioning refrigeration agent according to claim 1 and 2 is the control valve of changing device more, it is characterized in that, the both sides of described sealing gasket (21) respectively with the form fit of spool (20) and passway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101176209A CN1945074B (en) | 2006-10-26 | 2006-10-26 | Control valve of automobile air conditioner refrigerant replacing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101176209A CN1945074B (en) | 2006-10-26 | 2006-10-26 | Control valve of automobile air conditioner refrigerant replacing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1945074A CN1945074A (en) | 2007-04-11 |
| CN1945074B true CN1945074B (en) | 2011-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101176209A Expired - Fee Related CN1945074B (en) | 2006-10-26 | 2006-10-26 | Control valve of automobile air conditioner refrigerant replacing device |
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| Country | Link |
|---|---|
| CN (1) | CN1945074B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527818B (en) * | 2013-10-25 | 2015-08-26 | 成都安迪生测量有限公司 | Two position three-way valve |
| DE102018108013B4 (en) * | 2018-04-05 | 2021-05-06 | Hanon Systems | Devices for regulating a flow rate and distributing a fluid in a fluid circuit |
| CN111720583B (en) * | 2019-03-20 | 2023-07-18 | 浙江三花汽车零部件有限公司 | Control valve, air conditioning system and processing method of control valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2138729Y (en) * | 1992-09-24 | 1993-07-21 | 陈小来 | Stop valve for refrigerating pipe |
| CN1532439A (en) * | 2003-03-10 | 2004-09-29 | ����-����ҹ�˾ | Dual body service valve |
| CN2674220Y (en) * | 2004-01-13 | 2005-01-26 | 李福昌 | High sealing performance, low temp. high pressure globe valve |
| CN201025310Y (en) * | 2006-10-26 | 2008-02-20 | 玉环县国达阀门有限公司 | A control valve for replacement device of car air-conditioner refrigerating agent |
-
2006
- 2006-10-26 CN CN2006101176209A patent/CN1945074B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2138729Y (en) * | 1992-09-24 | 1993-07-21 | 陈小来 | Stop valve for refrigerating pipe |
| CN1532439A (en) * | 2003-03-10 | 2004-09-29 | ����-����ҹ�˾ | Dual body service valve |
| CN2674220Y (en) * | 2004-01-13 | 2005-01-26 | 李福昌 | High sealing performance, low temp. high pressure globe valve |
| CN201025310Y (en) * | 2006-10-26 | 2008-02-20 | 玉环县国达阀门有限公司 | A control valve for replacement device of car air-conditioner refrigerating agent |
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| Publication number | Publication date |
|---|---|
| CN1945074A (en) | 2007-04-11 |
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