CN203230861U - Stop valve for air conditioner - Google Patents
Stop valve for air conditioner Download PDFInfo
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- CN203230861U CN203230861U CN 201320170240 CN201320170240U CN203230861U CN 203230861 U CN203230861 U CN 203230861U CN 201320170240 CN201320170240 CN 201320170240 CN 201320170240 U CN201320170240 U CN 201320170240U CN 203230861 U CN203230861 U CN 203230861U
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- valve
- spool
- lock pin
- valve body
- pipe
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Abstract
The utility model discloses a stop valve for an air conditioner. The stop valve comprises a valve body, a valve spool, a valve core and a locking component, wherein the valve body forms a vacuum cavity, the valve spool with a fastening portion is arranged in the valve body, the valve core is arranged on the valve body, and the locking component is arranged on the valve body. The locking component comprises a sleeve, a lock pin, an elastic element and a sealing element, the sleeve is arranged on the valve body and respectively communicated with the vacuum cavity and air, the lock pin is arranged in the sleeve, the elastic element is abutted to the sleeve and the lock pin, the sealing element is sleeved on the lock pin, the lock pin is fastened with the fastening portion of the valve spool under the action of the elastic element and pushes the elastic element by differential pressure generated when the valve core pumps vacuum, and the locking component moves to be separated from a lock fastener when the vacuum degree reaches a preset value. When the stop valve for the air conditioner is used, an installer needs to pump vacuum through the valve core, the stop valve can be opened when the vacuum degree reaches the preset value, non-standard operation or misoperation of the installer is effectively avoided, and potential safety hazards can be effectively eliminated when novel refrigerants are used.
Description
Technical field
The utility model relates to pipe-line control valve gate technique field, is specifically related to a kind of stop valve for air-conditioning duct control.
Background technique
Stop valve also claims valve, is to use the most a kind of valve, and it not only applies to the connection of various pipelines, and also extensively uses in refrigerating and air conditioning industry.The present stop valve in the refrigeration industry can only be realized the simple function of Push And Release, and along with the progressively utilization of novel refrigerant (R290, R32), present stop valve can not satisfy usage requirement.
See also Fig. 1, it has disclosed existing stop valve for domestic air conditioning, and this stop valve comprises: valve body 110, spool 120, copper screw cap 130, snap ring 140, plastic cap nut 150, connect pipe 160, valve inside 170 and copper screw cap 180.Be provided with the valve body conical surface 111 in the straight hole of valve body 110.The outside of spool 120 is provided with the screw thread with valve body 110 engagement, and the head of spool 120 has with the valve body conical surface 111 of valve body 110 and cooperates the spool conical surface 121 that forms sealing surface, and the root of spool 120 is provided with " O " RunddichtringO 122.
Before this stop valve of operation, earlier copper screw cap 130 is turned on, hexagon wrench is inserted in the inner hexagonal hole of spool 120 and drive spool 120 and rotate; When spool 120 was twisted to the valve body conical surface 111 clockwise, stop valve was closed, otherwise then stop valve is opened.
Air conditioner is when dispatching from the factory, and outdoor unit has poured into refrigeration agent, and at this moment, stop valve is in closed condition.And air conditioner when mounted, need indoor set and outdoor unit be docked by two connecting tubes, and need vacuumize these two connecting tubes and indoor set when indoor set and outdoor unit are docked.
There are two kinds of methods that two connecting tubes and indoor set are vacuumized at present, a kind of method is to vacuumize by 7 pairs of connecting tubes of valve inside and indoor set, after exhausting vacuum, turn on spool 120 again and open stop valve, thereby make refrigeration agent enter into indoor set from outdoor unit; Another kind method is to connect earlier a connecting tube, opens stop valve several seconds then, makes refrigeration agent enter connecting tube and indoor set, gets rid of the air in connecting tube and the indoor set, and then connects an other connecting tube rapidly, and the method also claims exhaust method.
Yet, above-mentioned two kinds of methods all are difficult to guarantee the degree of vacuum of connecting tube and indoor set, and for the air conditioner that uses novel refrigerant (as R290, R32), because novel refrigerant has inflammable and explosive characteristic, must guarantee that can not there be air the air conditioner the inside, therefore, use existing stop valve following security hidden trouble may occur:
The one,, can not prevent that installation personnel from getting rid of air in connecting tube and the indoor set by exhaust method, thereby have the hidden danger that occurs combustion explosion in the installation process; The 2nd,, even if installation personnel vacuumizes by valve inside 170, installation personnel may occur and just open stop valve the air in connecting tube and the indoor set not being extracted into predetermined value, thereby can't guarantee the degree of vacuum in the air conditioner, therefore also can there be potential safety hazard.
The model utility content
Main purpose of the present utility model is to provide a kind of idle call stop valve, is intended to effectively solve present idle call stop valve and can't guarantees to vacuumize the degree of vacuum that reaches predetermined and the technical problem that has potential safety hazard when using novel refrigerant.
In order to realize the utility model purpose, the utility model provides a kind of idle call stop valve, comprising:
Be formed with the valve body of vacuum chamber;
Be arranged at the spool in the valve body, this spool is provided with the engagement portion;
Be arranged on the valve inside that being used on the valve body vacuumizes; And
Be arranged at the locking assembly on the valve body;
Described locking assembly has the sleeve pipe that is arranged on the valve body and is communicated with vacuum chamber and atmosphere respectively, be arranged on lock pin in the sleeve pipe, be connected to the elastic element on sleeve pipe and the lock pin and be set in the Sealing for Sealed casing pipe on the lock pin, this lock pin engages with the engagement portion of spool under the elastic element effect, the pressure reduction that causes when valve inside vacuumizes makes lock pin pushing elastic element, and this latch is moved to snap close piece break away from.
Preferably, described valve body has spool mounting pipe, inlet tube, outer pipe and valve inside mounting pipe, and an end of spool mounting pipe, inlet tube, outer pipe and valve inside mounting pipe links together and forms described vacuum chamber; Spool is screwed onto on the spool mounting pipe, and valve inside is arranged on the valve inside mounting pipe, and an end of the sleeve pipe of described locking assembly is arranged on the spool mounting pipe and with atmosphere and is communicated with, and the other end of sleeve pipe is arranged on the outer pipe and with vacuum chamber and is communicated with.
Preferably, the engagement portion of described spool is a card complex hole.
Preferably, described sleeve pipe has cavity and connecting tube, and an end of cavity is arranged on the valve body and with atmosphere and is communicated with, and the two ends of connecting tube are separately positioned on the other end and valve body of cavity, and connecting tube is communicated with cavity and vacuum chamber.
Preferably, described sleeve pipe has a receiving bore and a bullport, and the diameter of bullport is less than the diameter of receiving bore, and the joint of receiving bore and bullport forms step, and described elastic element is connected on step and the lock pin.
Preferably, the guide portion that described lock pin has sticking department and extends out from sticking department, sticking department are arranged in the receiving bore of cavity, and guide portion stretches in the bullport of cavity, described elastic element is set on the guide portion, and this elastic element is connected on the step of sticking department and cavity.
Because the utility model idle call stop valve pins spool by the cooperation of lock pin and elastic element, thereby can prevent the improper idle call stop valve of opening; When vacuumizing by valve inside, atmospheric pressure can promote lock pin and move, and when degree of vacuum reached predetermined value, lock pin moved certain position and breaks away from the engagement portion of spool, thereby removes the locking of spool, and can open the idle call stop valve this moment.Therefore, by using the utility model idle call stop valve, installation personnel is when being connected indoor machine of air-conditioner by connecting tube with outdoor unit, must come vacuum chamber, connecting tube and indoor set are vacuumized by valve inside, and when degree of vacuum reaches predetermined value, installation personnel just can be opened the idle call stop valve, and this can effectively be avoided operator's operation lack of standardization or misoperation, thereby has guaranteed installation quality and the conformity of air conditioner.
Description of drawings
Fig. 1 is the cross section view of existing stop valve;
Fig. 2 is the cross section view of idle call stop valve when being in open mode in the utility model one preferred embodiment;
Fig. 3 is the partial enlarged drawing of III part among Fig. 2;
Fig. 4 is the cross section view of idle call stop valve when being in closed condition in the utility model preferred embodiment;
Fig. 5 is the partial enlarged drawing of V part among Fig. 4.
The realization of the utility model purpose, functional characteristics and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
The utility model provides a kind of idle call stop valve, with reference to Fig. 2 to Fig. 5, among the utility model one embodiment, this idle call stop valve comprises: valve body 210, be arranged at spool 220 on the valve body 210, be arranged on the valve body 210 and can and be arranged on the valve inside 240 that being used on the valve body 210 vacuumizes with spool 220 lockings and the locking assembly 230 that breaks away from.
Valve body 210 has spool mounting pipe 211, inlet tube 212, outer pipe 213 and valve inside mounting pipe 214.One end of spool mounting pipe 211, inlet tube 212, outer pipe 213 and valve inside mounting pipe 214 links together and forms vacuum chamber 215.Offer a fixed hole 216 that is positioned at vacuum chamber 215 tops on the tube wall of spool mounting pipe 211.Inlet tube 212 is used for being connected with the corresponding pipe 250 that connects of air conditioner, and its top is formed with the body conical surface 217.Outer pipe 213 is used for connecting corresponding connecting tube when air conditioner is installed, so that indoor machine of air-conditioner and outdoor unit are coupled together.Valve inside mounting pipe 214 is used for installing valve inside 240, thereby can come connecting tube and the indoor set of vacuum chamber 215, connection indoor set and outdoor unit chambers are vacuumized by valve inside 240.
Spool 220 is arranged in the spool mounting pipe 211 of valve body 210, and it has core body 221 and seal ring 222.Core body 221 is screwed onto in the spool mounting pipe 211, and offers card complex hole 223 and the ringwise groove 224 that is positioned at card complex hole 223 belows on the side of this core body 221.The mounting hole 225 of hexagonal shape in the upper end of core body 221 offers and is.The lower end of core body 221 is formed with the core body conical surface 226.Seal ring 222 is inserted in the groove 224, and it is connected on the spool mounting pipe 211, thereby sealed valve core mounting pipe 211 is with vacuum chamber 215 and extraneous the isolation.
In addition, in order to prevent that pollutant from entering valve body 210, all be covered with nut 260 on spool mounting pipe 211, outer pipe 213 and the valve inside mounting pipe 214, the material that its middle cover is located at the nut 260 on spool mounting pipe 211 and the valve inside mounting pipe 21 is copper, and the material that lid is located at the nut 260 on the outer pipe 213 is plastics.For preventing that spool 220 from excessively screwing out spool mounting pipe 211, be arranged with a snap ring 270 in the spool mounting pipe 211, this snap ring 270 is jam spool 220 when opening spool 220 to maximum position, as shown in Figure 2.
See also Fig. 4 and Fig. 5, when the idle call stop valve is in closed condition, the body conical surface 217 of the core body conical surface 226 butt valve bodies 210 of core body 221, thereby seal up inlet tube 212 to prevent leakage of refrigerant, the sticking department 2321 of lock pin 232 is in elastic element 233 is done the card complex hole 223 that snaps in core body 221 under the effect, thereby locking core body 221 is removed itself and the sealing of inlet tube 212 to prevent turn core body 221, so can prevent that installation personnel from vacuumizing by exhaust method.
When needs are opened stop valve, vacuumize by valve inside 240 earlier, air pressure in the vacuum chamber 215 is more and more lower at this moment, thereby cavity 2311 can increase gradually at the pressure reduction of the both sides of Sealing 234, this pressure reduction can produce the active force that the sticking department 2321 that makes lock pin 232 pushes elastic element 233 left, along with the increase of pressure reduction, lock pin 232 can be moved to the left gradually, that is lock pin 232 is moved to the left under the effect of atmospheric pressure gradually; When degree of vacuum reaches predetermined value, lock pin 232 is moved to the left to certain position and breaks away from the card complex hole 223 of core body 221, at this moment, hexagon wrench can be inserted in the mounting hole 225 of core body 221 and drives core body 221 and rotate counterclockwise, thereby open stop valve, as shown in Figures 2 and 3.
Because the utility model stop valve pins core body 221 by the cooperation of lock pin 232 and elastic element 233, thereby can prevent the improper stop valve of opening; When vacuumizing by valve inside 240, atmospheric pressure can promote lock pin 232 and be moved to the left gradually, when degree of vacuum reaches predetermined value, lock pin 232 is moved to the left certain position and breaks away from the card complex hole 223 of spool 220, thereby remove the locking of spool 220, can rotate core body 221 by hexagon wrench and open stop valve this moment.Therefore, by using the utility model idle call stop valve, installation personnel is when being connected indoor machine of air-conditioner by connecting tube with outdoor unit, must come vacuum chamber 215, connecting tube and indoor set are vacuumized by valve inside 240, and when degree of vacuum reaches predetermined value, installation personnel just can be opened the idle call stop valve, and this can effectively be avoided operator's operation lack of standardization or misoperation, thereby has guaranteed installation quality and the conformity of air conditioner.
Certainly, the card complex hole 223 of the core body 221 of spool 220 can replace with the engagement portion of other structure, as be set to projection, and form the different tube chamber of diameter up and down in spool mounting pipe 211, the sealing that is spirally connected of the tube chamber that spool mounting pipe 211 lower end diameter are less and core body 221, the tube chamber that spool mounting pipe 211 upper end diameter are bigger are used for holding the projection of core body 221 etc.
It below only is preferred embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (6)
1. an idle call stop valve is characterized in that, comprising:
Be formed with the valve body of vacuum chamber;
Be arranged at the spool in the valve body, this spool is provided with the engagement portion;
Be arranged on the valve inside that being used on the valve body vacuumizes; And
Be arranged at the locking assembly on the valve body;
Described locking assembly has the sleeve pipe that is arranged on the valve body and is communicated with vacuum chamber and atmosphere respectively, be arranged on lock pin in the sleeve pipe, be connected to the elastic element on sleeve pipe and the lock pin and be set in the Sealing for Sealed casing pipe on the lock pin, this lock pin engages with the engagement portion of spool under the elastic element effect, the pressure reduction that causes when valve inside vacuumizes makes lock pin pushing elastic element, and this latch is moved to snap close piece break away from.
2. idle call stop valve as claimed in claim 1, it is characterized in that, described valve body has spool mounting pipe, inlet tube, outer pipe and valve inside mounting pipe, and an end of spool mounting pipe, inlet tube, outer pipe and valve inside mounting pipe links together and forms described vacuum chamber; Spool is screwed onto on the spool mounting pipe, and valve inside is arranged on the valve inside mounting pipe, and an end of the sleeve pipe of described locking assembly is arranged on the spool mounting pipe and with atmosphere and is communicated with, and the other end of sleeve pipe is arranged on the outer pipe and with vacuum chamber and is communicated with.
3. idle call stop valve as claimed in claim 1 is characterized in that, the engagement portion of described spool is a card complex hole.
4. idle call stop valve as claimed in claim 1, it is characterized in that described sleeve pipe has cavity and connecting tube, an end of cavity is arranged on the valve body and with atmosphere and is communicated with, the two ends of connecting tube are separately positioned on the other end and valve body of cavity, and connecting tube is communicated with cavity and vacuum chamber.
5. idle call stop valve as claimed in claim 1, it is characterized in that described sleeve pipe has a receiving bore and a bullport, the diameter of bullport is less than the diameter of receiving bore, the joint of receiving bore and bullport forms step, and described elastic element is connected on step and the lock pin.
6. idle call stop valve as claimed in claim 5, it is characterized in that, the guide portion that described lock pin has sticking department and extends out from sticking department, sticking department is arranged in the receiving bore of cavity, guide portion stretches in the bullport of cavity, described elastic element is set on the guide portion, and this elastic element is connected on the step of sticking department and cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320170240 CN203230861U (en) | 2013-04-03 | 2013-04-03 | Stop valve for air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320170240 CN203230861U (en) | 2013-04-03 | 2013-04-03 | Stop valve for air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203230861U true CN203230861U (en) | 2013-10-09 |
Family
ID=49286988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320170240 Expired - Lifetime CN203230861U (en) | 2013-04-03 | 2013-04-03 | Stop valve for air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203230861U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206550A (en) * | 2013-04-03 | 2013-07-17 | 广东美的制冷设备有限公司 | Stop valve for air conditioners |
| CN104147968A (en) * | 2014-07-21 | 2014-11-19 | 梁建民 | Medicine mixing device |
| CN104832655A (en) * | 2014-02-12 | 2015-08-12 | 浙江盾安禾田金属有限公司 | Stop valve for air conditioner |
-
2013
- 2013-04-03 CN CN 201320170240 patent/CN203230861U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206550A (en) * | 2013-04-03 | 2013-07-17 | 广东美的制冷设备有限公司 | Stop valve for air conditioners |
| CN104832655A (en) * | 2014-02-12 | 2015-08-12 | 浙江盾安禾田金属有限公司 | Stop valve for air conditioner |
| CN104147968A (en) * | 2014-07-21 | 2014-11-19 | 梁建民 | Medicine mixing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220119 Address after: 510275 No. 135 West Xingang Road, Guangdong, Guangzhou Patentee after: SUN YAT-SEN University Patentee after: GD MIDEA AIR-CONDITIONING EQUIPMENT Co.,Ltd. Address before: 528311, 26-28, B District, Mei headquarters building, 6 Mei Road, Beijiao Town, Shunde District, Foshan, Guangdong. Patentee before: GD MIDEA AIR-CONDITIONING EQUIPMENT Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131009 |
|
| CX01 | Expiry of patent term |