CN203798046U - Leakage-proof ejector pin device - Google Patents
Leakage-proof ejector pin device Download PDFInfo
- Publication number
- CN203798046U CN203798046U CN201420167992.2U CN201420167992U CN203798046U CN 203798046 U CN203798046 U CN 203798046U CN 201420167992 U CN201420167992 U CN 201420167992U CN 203798046 U CN203798046 U CN 203798046U
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- Prior art keywords
- connection
- pin device
- leakproof
- export
- push rod
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Abstract
The utility model providesa leakage-proof ejector pin device which is connected with a fluorine injection nozzle of an air conditioning unit, so that a refrigerant can be injected into or output from the air conditioning unit. The fluorine injection nozzle comprises a connecting sleeve and a valve needle connected with the connecting sleeve. The leakage-proof ejector pin device comprises a connecting nozzle and a trigger part, wherein the connecting nozzle comprises a first inlet and outlet detachably connected with the connecting sleeve; the trigger part is used for triggering the valve needle; when the first inlet and outlet of the connecting nozzle and the connecting sleeve are in a connecting state, the trigger part has a first position and a second position; when the trigger part is in the first position, the trigger part presses the valve needle of the fluorine injection nozzle so as to enable the fluorine injection nozzle to be in a connected state; and when the trigger part is in second first position, the trigger part leaves the valve needle of the fluorine injection nozzle so as to enable the fluorine injection nozzle to be in a disconnected state. With adoption of the technical scheme, before the valve needle is pressed, the first inlet and outlet is connected with the connecting sleeve of the fluorine injection nozzle, and the problem of refrigerant leakage when the refrigerant is injected into or output from the unit in the prior art is solved.
Description
Technical field
The utility model relates to art of refrigeration units, more specifically, relates to a kind of leakproof push pin device.
Background technology
By fluorinfused nozzle to injecting refrigerant in air-conditioning unit or when air-conditioning unit is exported refrigerant, first push pin device is connected with fluorinfused nozzle, fluorinfused nozzle comprises adapter sleeve and is arranged on the needle in adapter sleeve, the push pin device of prior art comprises connection and the push rod being fixedly connected with connection, in the process being connected of connection and fluorinfused nozzle, push rod touches needle, thereby cause just making fluorinfused nozzle conducting in not completing being connected of connection and fluorinfused nozzle, therefore easily cause that refrigerant leaks.In prior art, easily there is following problem:
1, in the time pinning the needle of fluorinfused nozzle, there is refrigerant ejection, easily cause operating personnel injured;
2, when fluorinfused nozzle is pressed needle, there is refrigerant ejection, the quantity of ejection refrigerant is difficult for determining, affect predetermined groundwater increment, if ejection too much, directly affect the normal work of air-conditioning unit, cause the bigger error in the time of the refrigerant pressure of working pressure sensor measurement air-conditioning unit, the data reference value testing out is little.
Utility model content
The utility model aims to provide a kind of leakproof push pin device, to solve in prior art to injecting refrigerant in unit or the problem of coolant leakage when unit is exported refrigerant.
To achieve these goals, the utility model provides a kind of leakproof push pin device, the fluorinfused nozzle that is used for connecting air-conditioning unit to inject refrigerant or to export refrigerant from unit in air-conditioning unit, fluorinfused nozzle comprises adapter sleeve and the needle being connected with adapter sleeve, leakproof push pin device comprises: connection, connection comprises the first import and export, and the first import and export are removably connected with adapter sleeve; Trigger unit, trigger unit is used for triggering needle, wherein, first of connection is imported and exported with adapter sleeve in the time of connection status, trigger unit have press fluorinfused nozzle needle so that the primary importance of fluorinfused nozzle in conducting state and the needle that leaves fluorinfused nozzle so that the second place of fluorinfused nozzle in closed condition.
Further, connection also comprises the second import and export, and the second import and export and first are imported and exported and communicated, and second imports and exports for Bonding pressure sensor; Or second import and export for connecting to injecting refrigerant in unit or exporting the conduit of refrigerant from unit.
Further, connection also comprises the second import and export and the 3rd import and export, second imports and exports and the 3rd imports and exports all with first and import and export and communicate, and second imports and exports and be used for Bonding pressure sensor, and the 3rd import and export are used for connecting to injecting refrigerant in unit or exporting the conduit of refrigerant from unit.
Further, connection is threaded with adapter sleeve.
Further, connection comprises attaching nut and the connection body being connected with attaching nut, and attaching nut is threaded with adapter sleeve, and one end that attaching nut is connected with adapter sleeve forms the first import and export.
Further, trigger unit comprises push rod, and push rod is arranged in connection, and connection first import and export with adapter sleeve in the time of connection status, push rod arranges movably along the bearing of trend of push rod.
Further, push rod comprises the body of rod and the stop part being connected with the body of rod, and connection also comprises stopper section, and stop part and stopper section are equipped with to prevent that push rod from shifting out connection.
Further, trigger unit also comprises the driver element for driving push rod to move along the bearing of trend of push rod.
Further, driver element comprises screw drive mechanism, and screw drive mechanism and push rod are in transmission connection.
Further, driver element also comprises instrument auxiliary section; Or driver element also comprises handle, handle and screw drive mechanism are in transmission connection.
Further, driver element also comprises drive motors, and drive motors and screw drive mechanism are in transmission connection.
Further, driver element also comprises thimble, and drive motors is driven and is connected with thimble by screw drive mechanism, and thimble is connected with top rod driving.
Application the technical solution of the utility model, leakproof push pin device comprises connection and trigger unit, connection comprises the first import and export, the first import and export are removably connected with adapter sleeve, trigger unit is used for triggering needle, first of connection is imported and exported with adapter sleeve in the time of connection status, first of connection is imported and exported with adapter sleeve in the time of connection status, trigger unit have press fluorinfused nozzle needle so that the primary importance of fluorinfused nozzle in conducting state and the needle that leaves fluorinfused nozzle so that the second place of fluorinfused nozzle in closed condition.Application the technical solution of the utility model, pressing before needle, is connected the first import and export with the adapter sleeve of fluorinfused nozzle, efficiently solve in prior art to injecting refrigerant in unit or the problem of coolant leakage when unit is exported refrigerant.
Brief description of the drawings
The Figure of description that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the structural representation of the leakproof push pin device of the first embodiment of the present utility model;
Fig. 2 shows the structural representation of the leakproof push pin device of the second embodiment of the present utility model;
Fig. 3 shows the structural representation of the leakproof push pin device of the 3rd embodiment of the present utility model.
Reference numeral: 1, connection; 11, attaching nut; 12, connection body; 2, trigger unit; 21, push rod; 211, the body of rod; 212, stop part; 22, handle; 23, instrument auxiliary section; 24, drive motors; 25, thimble; 3, adapter sleeve; 41, collar nut; 42, tube connector.
Detailed description of the invention
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
Embodiment mono-:
As shown in Figure 1, leakproof push pin device of the present utility model, the fluorinfused nozzle that is used for connecting air-conditioning unit is to inject refrigerant or to export refrigerant from unit in air-conditioning unit, and fluorinfused nozzle comprises adapter sleeve 3 and the needle being connected with adapter sleeve 3, and leakproof push pin device comprises connection 1 and trigger unit 2.Connection 1 comprises the first import and export, and the first import and export are removably connected with adapter sleeve 3.Trigger unit 2 is for triggering needle.
Wherein, first of connection 1 is imported and exported with adapter sleeve 3 in the time of connection status, trigger unit 2 have press fluorinfused nozzle needle so that the primary importance of fluorinfused nozzle in conducting state and the needle that leaves fluorinfused nozzle so that the second place of fluorinfused nozzle in closed condition.
Fluorinfused nozzle comprises adapter sleeve 3 and the needle being connected with adapter sleeve 3.Fluorinfused nozzle also comprises spring, and Spring driving needle moves to the direction of closing fluorinfused nozzle.Needle is in the process of the driving lower compression spring of external force, and needle is opened fluorinfused nozzle.
Using leakproof push pin device to injecting refrigerant in air-conditioning unit or when unit is exported refrigerant, first importing and exporting and be connected with fluorinfused nozzle first of connection 1, and then press needle by trigger unit 2.Effectively solve in prior art to injecting refrigerant in unit or the problem of coolant leakage when unit exports refrigerant.
Connection also comprises the second import and export, and the second import and export and first are imported and exported and communicated.Second imports and exports for Bonding pressure sensor.Pressure sensor is imported and exported and is connected with tube connector 42 and second by collar nut 41.Or second imports and exports for connecting to injecting refrigerant in unit or exporting the conduit of refrigerant from unit.
In the present embodiment, second import and export both can Bonding pressure sensor to measure the pressure of refrigerant in unit, also can connect refrigerant conduit to inject refrigerant or export refrigerant from unit in unit.
Preferably, connection 1 also comprises the second import and export and the 3rd import and export, second imports and exports and the 3rd imports and exports all with first and import and export and communicate, and second imports and exports and be used for Bonding pressure sensor, and the 3rd import and export are used for connecting to injecting refrigerant in unit or exporting the conduit of refrigerant from unit.
Preferably, connection 1 is threaded with adapter sleeve 3.
In the present embodiment, connection 1 comprises attaching nut 11 and the connection body 12 being connected with attaching nut 11, and attaching nut 11 is threaded with adapter sleeve 3, and one end that attaching nut 11 is connected with adapter sleeve 3 forms the first import and export.
After attaching nut 11 is connected with adapter sleeve 3, by trigger unit 2 trigger fluorinfused nozzle needle so that fluorinfused nozzle in open mode, fluorinfused nozzle communicates with connection.Effectively avoid the leakage of refrigerant.
Trigger unit 2 comprises push rod 21, and push rod 21 is arranged in connection 1, and connection 1 first import and export with adapter sleeve 3 in the time of connection status, push rod 21 arranges movably along the bearing of trend of push rod 21.Push rod 21 is realized needle is pressed to open fluorinfused nozzle in the process moving along its bearing of trend.
Push rod 21 comprises the body of rod 211 and the stop part 212 being connected with the body of rod 211, and connection 1 also comprises stopper section, and stop part 212 is equipped with to prevent that with stopper section push rod 21 from shifting out connection 1.
Stopper section is the step surface that is formed at connection body 12 inside.Stop part is connected with the outer peripheral face of push rod and extends to the direction away from push rod 21.Stop part and stopper section are equipped with to prevent that push rod 21 from shifting out connection 1.
In the present embodiment, trigger unit 2 also comprises the driver element for driving push rod 21 to move along the bearing of trend of push rod 21.Driver element comprises screw drive mechanism, and screw drive mechanism and push rod 21 are in transmission connection.Driver element also comprises the instrument auxiliary section 23 being in transmission connection with screw drive mechanism.
Screw drive mechanism comprises double-screw bolt, and the bearing of trend of this double-screw bolt is consistent with the bearing of trend of push rod 21.Double-screw bolt is threaded with connection 1.In the process of this double-screw bolt precession, double-screw bolt drives push rod 21 to press needle to open fluorinfused nozzle.In the process that this double-screw bolt screws out, Spring driving needle is closed fluorinfused nozzle.
Instrument auxiliary section 23 for be arranged on double-screw bolt end face with the suitable groove of interior hex tool.Drive precession and the back-out of double-screw bolt by interior hex tool, improved the practicality of leakproof push pin device.
Embodiment bis-:
As shown in Figure 2, the present embodiment being improved to embodiment mono-: driver element comprises handle 22.Handle 22 is in transmission connection with screw drive mechanism.In the present embodiment, utilize handle drives to replace and implement instrument auxiliary section in.Handle and Stud connection are to drive precession and the back-out of double-screw bolt, thereby driving push rod 21 is along the bearing of trend of push rod 21.
In connection body 12, be provided with the through hole consistent with the bearing of trend of push rod 21.Push rod is arranged in through hole.Through hole comprises near the first hole section of attaching nut 11 and the second hole section communicating with described the first hole section.The internal diameter of the first hole section is less than the internal diameter of the second hole section.The junction of the first hole section and the second hole section forms step surface.This step surface coordinates to prevent that with stop part 212 push rod 21 from shifting out connection body 12.
1. after attaching nut 11 being connected with adapter sleeve 3, tighten;
2. pressure sensor is imported and exported and is connected with tube connector 42 and second by collar nut 41;
3. rotary handle 22 drives push rod to move along the bearing of trend of push rod, and push rod 21 is pressed the needle of fluorinfused nozzle, and pressure sensor shows result.
Embodiment tri-:
As shown in Figure 3, in the present embodiment, driver element also comprises drive motors 24 and screw drive mechanism.Drive motors and screw drive mechanism are in transmission connection.
Driver element also comprises thimble 25, and drive motors 24 is driven and is connected with thimble 25 by screw drive mechanism, and thimble 25 drives and is connected with push rod 21.
Screw drive mechanism comprises the internal thread on the inner peripheral surface that is arranged on connection body and the thimble arranging with screw-internal thread fit.On the outer peripheral face of thimble, be provided with the external screw thread arranging with above-mentioned screw-internal thread fit.This thimble and drive motors are in transmission connection.The rotating drive thimble of drive motors rotates, and the process that thimble rotates with respect to internal thread moves along the bearing of trend of push rod, thereby has realized pressing push rod.
In the present embodiment, drive motors is stepper motor, and the direction of rotation of stepper motor depends on the phase place of electric pulse, and the size of the anglec of rotation of stepper motor depends on the quantity of pulse.Drive motors is according to the amount of spin of the number of pulses decision receiving itself.Continuous pulse will make it constantly rotate.Thereby the driving shaft of rotor and thimble 25 are in transmission connection and are driven thimble 25 to move along the bearing of trend of push rod 21 by screw drive mechanism.
In the present embodiment, utilize the course of work of leakproof push pin device connection fluorinfused nozzle as follows:
1. after attaching nut 11 being connected with adapter sleeve 3, tighten;
2. pressure sensor is imported and exported and is connected with tube connector and second by collar nut;
3. drive motors drives thimble 25 to move along the bearing of trend of push rod 21 under the driving of forward pulse, thereby thimble 25 drives push rod 21 to make push rod 21 press the needle of fluorinfused nozzle, and pressure sensor shows result;
Drive motors under the driving of back pulse, drive thimble 25 along the bearing of trend of push rod 21 move to away from push rod 21 direction move, needle moves to the position of closing fluorinfused nozzle, final plant closure fluorinfused nozzle.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (12)
1. a leakproof push pin device, the fluorinfused nozzle that is used for connecting air-conditioning unit to inject refrigerant or to export refrigerant from unit in described air-conditioning unit, described fluorinfused nozzle comprises adapter sleeve (3) and the needle being connected with described adapter sleeve (3), it is characterized in that, described leakproof push pin device comprises:
Connection (1), described connection (1) comprises the first import and export, described the first import and export are removably connected with described adapter sleeve (3);
Trigger unit (2), described trigger unit (2) is for triggering described needle,
Wherein, described first of described connection (1) is imported and exported with described adapter sleeve (3) in the time of connection status, described trigger unit (2) have press described fluorinfused nozzle described needle so that the primary importance of described fluorinfused nozzle in conducting state and the described needle that leaves described fluorinfused nozzle so that the second place of described fluorinfused nozzle in closed condition.
2. leakproof push pin device according to claim 1, is characterized in that, described connection also comprises the second import and export, and described the second import and export and described first are imported and exported and communicated,
Described second imports and exports for Bonding pressure sensor; Or
Described second imports and exports for connecting to injecting refrigerant in unit or exporting the conduit of refrigerant from unit.
3. leakproof push pin device according to claim 1, it is characterized in that, described connection (1) also comprises the second import and export and the 3rd import and export, described the second import and export and the described the 3rd are imported and exported all and are communicated with described the first import and export, described second imports and exports for Bonding pressure sensor, and the described the 3rd imports and exports for connecting to injecting refrigerant in unit or exporting the conduit of refrigerant from unit.
4. leakproof push pin device according to claim 1, is characterized in that, described connection (1) is threaded with described adapter sleeve (3).
5. leakproof push pin device according to claim 4, it is characterized in that, described connection (1) comprises attaching nut (11) and the connection body (12) being connected with described attaching nut (11), described attaching nut (11) is threaded with described adapter sleeve (3), and one end that described attaching nut (11) is connected with described adapter sleeve (3) forms described the first import and export.
6. leakproof push pin device according to claim 1, it is characterized in that, described trigger unit (2) comprises push rod (21), described push rod (21) is arranged in described connection (1), and described first of described connection (1) is imported and exported with described adapter sleeve (3) in the time of connection status, and described push rod (21) arranges movably along the bearing of trend of described push rod (21).
7. leakproof push pin device according to claim 6, it is characterized in that, described push rod (21) comprises the body of rod (211) and the stop part (212) being connected with the described body of rod (211), described connection (1) also comprises stopper section, and described stop part and described stopper section are equipped with to prevent that described push rod (21) from shifting out described connection (1).
8. leakproof push pin device according to claim 6, is characterized in that, described trigger unit (2) also comprises the driver element for driving described push rod (21) to move along the bearing of trend of described push rod (21).
9. leakproof push pin device according to claim 8, is characterized in that, described driver element comprises screw drive mechanism, and described screw drive mechanism and described push rod (21) are in transmission connection.
10. leakproof push pin device according to claim 9, is characterized in that,
Described driver element also comprises instrument auxiliary section (23); Or,
Described driver element also comprises handle (22), and described handle (22) is in transmission connection with described screw drive mechanism.
11. leakproof push pin device according to claim 9, is characterized in that, described driver element also comprises drive motors (24), and described drive motors and screw drive mechanism are in transmission connection.
12. leakproof push pin device according to claim 11, it is characterized in that, described driver element also comprises thimble (25), and described drive motors (24) is driven and is connected with described thimble (25) by described screw drive mechanism, and described thimble (25) drives and is connected with described push rod (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420167992.2U CN203798046U (en) | 2014-04-08 | 2014-04-08 | Leakage-proof ejector pin device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420167992.2U CN203798046U (en) | 2014-04-08 | 2014-04-08 | Leakage-proof ejector pin device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203798046U true CN203798046U (en) | 2014-08-27 |
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ID=51380251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420167992.2U Expired - Fee Related CN203798046U (en) | 2014-04-08 | 2014-04-08 | Leakage-proof ejector pin device |
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|---|---|
| CN (1) | CN203798046U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633356A (en) * | 2014-12-10 | 2015-05-20 | 珠海格力电器股份有限公司 | Fluorine injection nozzle safety switching device |
-
2014
- 2014-04-08 CN CN201420167992.2U patent/CN203798046U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633356A (en) * | 2014-12-10 | 2015-05-20 | 珠海格力电器股份有限公司 | Fluorine injection nozzle safety switching device |
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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: 20140827 |
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| CF01 | Termination of patent right due to non-payment of annual fee |