CN110398096B - Adjustable punching injection head of air conditioner refrigerant filling machine - Google Patents
Adjustable punching injection head of air conditioner refrigerant filling machine Download PDFInfo
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- CN110398096B CN110398096B CN201910715307.2A CN201910715307A CN110398096B CN 110398096 B CN110398096 B CN 110398096B CN 201910715307 A CN201910715307 A CN 201910715307A CN 110398096 B CN110398096 B CN 110398096B
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- gear
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- connecting rod
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- toothed belt
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B45/00—Arrangements for charging or discharging refrigerant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
- F25B2345/001—Charging refrigerant to a cycle
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- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
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- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention discloses an adjustable punching and injecting head of an air conditioner refrigerant filling machine, which comprises a connector, wherein a rotating sleeve is arranged at the bottom of the connector, a connecting sleeve is arranged on the outer wall of the rotating sleeve in a surrounding manner, the top of the rotating sleeve is fixedly connected with a clamping ring, the top of the clamping ring is fixedly connected with a spiral strip in a spiral manner, an annular groove is formed in the position, corresponding to the spiral strip, of the bottom of the connector, and a first gear is arranged at the top of the annular groove. According to the invention, high-pressure gas is sucked into the gas guide pipe through the gas guide pipe and then enters the accommodating cavity at the top of the closed cavity, the connecting rod is driven by the baffle plate to move downwards, the pressure at the bottom of the baffle plate is increased, the baffle plate is driven by the pressure spring to rise, the spiral strip is clamped with the first gear, and the first gear drives the second gear to rotate.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an adjustable flushing and injecting head of an air conditioner refrigerant filling machine.
Background
The refrigerant is needed to be filled into an evaporator of an indoor unit of the air conditioner during production, a pressure reducing valve is generally installed on a refrigerant pipeline, and a high-pressure liquid refrigerant in the pipeline directly enters the evaporator after being reduced in pressure by the pressure reducing valve to fill a storage tank of the machine.
Traditional fill and fill head and connect through simple bolt screw, this kind of structure is fairly simple, does not have regulatory function, needs the manometer of distal end to adjust just can stop equipment when holding the pipe and reaching the maximum pressure that can bear to reduction that can not be timely fills the speed of filling, arouses the potential safety hazard very easily, and also can not be rapid come equipment to stop through filling the head, in case the machine breaks down and just is difficult to stop to pour into, causes danger easily.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the adjustable filling head of the air-conditioning refrigerant filling machine, which has the advantages of adjusting the filling speed in real time according to the pressure, quickly stopping the filling work and ensuring the safety, and solves the problems that the traditional equipment cannot adjust the speed in time and cannot advance to stop through the filling pipe.
(II) technical scheme
In order to realize the purposes of adjusting the injection speed in real time according to the pressure, rapidly stopping the injection work and ensuring the safety, the invention provides the following technical scheme: an adjustable punching and injecting head of an air conditioner refrigerant filling machine comprises a connector, wherein a rotating sleeve is arranged at the bottom of the connector, a connecting sleeve is arranged on the outer wall of the rotating sleeve in a surrounding mode, a clamping ring is fixedly connected to the top of the rotating sleeve, a spiral strip is fixedly connected to the top of the clamping ring in a spiral mode, a circular groove is formed in the position, corresponding to the spiral strip, of the bottom of the connector, a first gear is arranged at the top of the circular groove, a second gear is arranged at the top of the first gear, the first gear is connected with the second gear through a toothed belt, a third gear is arranged on one side of the second gear, a closed cavity is arranged in the center of the interior of the connector, a rotating column is arranged inside the side wall of the closed cavity, an air guide pipe is vertically arranged at the top and the bottom of the rotating column, and a, the bottom that holds the chamber is provided with the baffle, the bottom of baffle is provided with the connecting rod, the inside of connecting rod is to run through and is provided with the breather pipe, one side of baffle is to run through and is provided with the draw-in groove.
Preferably, the inside of draw-in groove is to run through and is provided with the slide bar, the top and the bottom of slide bar all are provided with the closed ball, the center and the breather pipe of draw-in groove link up each other, the top and the bottom of draw-in groove all are provided with the arc recess that corresponds each other with the closed ball.
Preferably, the bottom of baffle is fixedly connected with pressure spring, the connecting rod passes pressure spring's center, the top and the baffle fixed connection of connecting rod, the breather pipe passes the lateral wall center of baffle, the breather pipe is the tubular metal resonator.
Preferably, the side wall of one end of the rotating column is provided with an air guide hole, the air guide hole is L-shaped, the outer wall of one side of the rotating column, which is far away from the air guide hole, is provided with a fixed gear in a surrounding manner, the outer wall of the fixed gear is provided with a toothed belt in a surrounding manner, and the toothed belt is a high-strength rubber toothed belt.
Preferably, the second gear is connected with the third gear through a toothed belt, the third gear is connected with the rotating column through a toothed belt, the first gear, the second gear and the third gear are all in a double-gear structure, the two gears are fixed with each other, and the gears are metal gears.
Preferably, the bottom of snap ring is vertical and is provided with the through hole, the outer wall of through hole is and encircles and be provided with the cylinder hole, the position that the bottom of connecting rod is close to the cylinder hole is provided with the fixed block, fixed block and the mutual joint of cylinder hole, the inside in cylinder hole is provided with the sealing rubber piece.
Preferably, the top of snap ring is the spiral and is provided with the spiral strip, the mutual joint of tooth of spiral strip and first gear outer wall, first gear is connected with connector rotation each other, the outer wall of snap ring is provided with lubricated butter.
Preferably, the outer wall in closed chamber is to encircle and be provided with fixed pipe, the inside of fixed pipe is cavity, the third gear is located the inside of fixed pipe, the lateral wall in closed chamber is provided with the inlet port, the inlet port communicates with the rotation post each other, the top of connector is provided with the connecting pipe, the connecting pipe communicates with the connector is inside each other, closed chamber is made for the metal.
Advantageous effects
Compared with the prior art, the invention provides an adjustable flushing and injecting head of an air-conditioning refrigerant filling machine, which has the following beneficial effects:
1. when in use, the rotating sleeve and the injection port of the air conditioner are mutually connected and fixed through the connecting sleeve, the injection equipment is opened again, a refrigerant is injected into the connector through the connecting pipe, the connecting rod is ejected downwards through the high-pressure refrigerant, the connecting rod is separated from the cylindrical hole, the refrigerant enters the refrigerant storage tank of the air conditioner through the pipeline, and when in injection, high-pressure gas is sucked into the air guide pipe through the air inlet hole and then enters the accommodating cavity at the top of the closed cavity through the air guide pipe, the baffle is pressed downwards through pressure, the baffle drives the connecting rod to move downwards, the end part of the connecting rod is further far away from the cylindrical hole, the injection speed is accelerated, the gas pressure in the refrigerant storage tank is guided into the clamping groove through the air guide pipe at the center of the connecting rod, the closed ball is pressed downwards through the gas in the accommodating cavity, and the closed ball at the bottom of the, and then make gas enter into the closed ball bottom, at the injection in-process, the inside pressure of refrigerant holding vessel increases, and then drives the pressure increase of baffle bottom, and then makes the pressure trend of closed intracavity portion balanced to make the baffle rise under pressure spring's drive, and then make the tip of connecting rod be close to the cylinder hole, and then make the flow diminish, thereby guarantee the steady of equipment.
2. When an accident occurs and emergency disconnection is needed, or filling is needed to be stopped temporarily, the connector can be rotated, the rotating sleeve and the refrigerant storage tank are fixed with each other, so that the annular groove and the clamping ring rotate relatively, the spiral strip and the first gear rotate mutually, the spiral strip and the first gear are clamped with each other, so that when the spiral strip rotates, the first gear is also driven to rotate, the first gear drives the second gear to rotate through the toothed belt, the second gear drives the third gear through the toothed belt, the third gear drives the rotating column to rotate through the toothed belt, the air inlet and the air guide pipe at the bottom are communicated with each other through the air guide hole in the rotating column, so that the air in the connector reaches the bottom of the baffle plate, the closed ball at the bottom is jacked up through larger air pressure, and the air guide pipe guides the air into the accommodating cavity, because the inside gas pressure of connector is higher than refrigerant holding vessel is inside, and then makes the baffle rise, and then drives the connecting rod and rises, and then makes the cylinder hole seal each other with the connecting rod again, and then seals the inside of connector, prevents gas blowout, reaches the function that the urgent interrupt stops.
Drawings
FIG. 1 is a front view of the structure of the present invention;
FIG. 2 is a cross-sectional view of the internal structure of the present invention;
FIG. 3 is an enlarged view taken at A in FIG. 2;
FIG. 4 is a bottom plan view of the structural connector of the present invention;
FIG. 5 is a sectional view of the internal structure of the structural closed cavity of the present invention;
FIG. 6 is an enlarged view at B in FIG. 5;
fig. 7 is a schematic structural view of the rotating column of the present invention.
In the figure: 1. a connector; 2. rotating the sleeve; 3. connecting sleeves; 4. a snap ring; 5. a helical strip; 6. an annular groove; 7. a first gear; 8. a toothed belt; 9. a second gear; 10. a third gear; 11. a closed cavity; 12. rotating the column; 13. an air duct; 14. an accommodating chamber; 15. a baffle plate; 16. a connecting rod; 17. a breather pipe; 18. a card slot; 19. a slide bar; 20. closing the ball; 21. a pressure spring; 22. an air vent; 23. fixing a gear; 24. a cylindrical bore; 25. a connecting pipe; 26. a fixed tube; 27. and (4) air inlet holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, other embodiments obtained by persons of ordinary skill in the art without any creative effort are within the protection scope of the present invention.
Referring to fig. 1-7, an adjustable punching head of an air conditioner refrigerant filling machine comprises a connector 1, a rotating sleeve 2 is arranged at the bottom of the connector 1, a connecting sleeve 3 is arranged around the outer wall of the rotating sleeve 2, a snap ring 4 is fixedly connected at the top of the rotating sleeve 2, a spiral strip 5 is fixedly connected at the top of the snap ring 4 in a spiral manner, an annular groove 6 is arranged at the bottom of the connector 1 corresponding to the spiral strip 5, a first gear 7 is arranged at the top of the annular groove 6, a second gear 9 is arranged at the top of the first gear 7, the first gear 7 is mutually connected with the second gear 9 through a toothed belt 8, a third gear 10 is arranged at one side of the second gear 9, a closed cavity 11 is arranged at the inner center of the connector 1, a rotating column 12 is arranged inside the side wall of the closed cavity 11, an air duct 13 is vertically arranged at the top and the bottom of the rotating column 12, an accommodating cavity 14 is, the bottom that holds chamber 14 is provided with baffle 15, and the bottom of baffle 15 is provided with connecting rod 16, and the inside of connecting rod 16 is to run through and is provided with breather pipe 17, and one side of baffle 15 is to run through and is provided with draw-in groove 18.
The inside of draw-in groove 18 is to run through and is provided with slide bar 19, and the top and the bottom of slide bar 19 all are provided with closed ball 20, and the center and the breather pipe 17 of draw-in groove 18 link up each other, and the top and the bottom of draw-in groove 18 all are provided with the arc recess that corresponds each other with closed ball 20, realize gaseous flow direction control through draw-in groove 18.
The bottom of baffle 15 is fixedly connected with pressure spring 21, and connecting rod 16 passes pressure spring 21's center, and the top and the baffle 15 fixed connection of connecting rod 16, breather pipe 17 pass the lateral wall center of baffle 15, support baffle 15 through pressure spring 21.
The side wall of one end of the rotating column 12 is provided with an air guide hole 22, the air guide hole 22 is L-shaped, the outer wall of one side of the rotating column 12, which is far away from the air guide hole 22, is provided with a fixed gear 23 in a surrounding manner, the outer wall of the fixed gear 23 is provided with a toothed belt 8 in a surrounding manner, the toothed belt 8 drives the fixed gear 23, and the fixed gear 23 drives the rotating column 12 to rotate.
The bottom of snap ring 4 is vertical and is provided with the through hole, and the outer wall of through hole is and encircles and be provided with cylinder hole 24, and the position that the bottom of connecting rod 16 is close to cylinder hole 24 is provided with the fixed block, fixed block and the mutual joint of cylinder hole 24, and cylinder hole 24 and connecting rod 16 are mutually sealed, and then with the inside seal of connector 1.
The top of snap ring 4 is the spiral and is provided with helical strip 5, and helical strip 5 and the mutual joint of tooth of first gear 7 outer wall, first gear 7 and 1 looks mutual rotation of connector are connected, and helical strip 5 takes place mutual rotation with first gear 7, because helical strip 5 and the mutual joint of first gear 7, so when helical strip 5 rotates, also drive first gear 7 and then rotate.
The outer wall of closed chamber 11 is to encircle and is provided with fixed pipe 26, and the inside of fixed pipe 26 is cavity, and third gear 10 is located fixed pipe 26's inside, and the lateral wall of closed chamber 11 is provided with inlet port 27, and inlet port 27 communicates with each other with rotation post 12, and the top of connector 1 is provided with connecting pipe 25, and connecting pipe 25 communicates with the connector 1 is inside each other, and the refrigerant pours into connector 1 inside through connecting pipe 25.
The working principle is as follows: when the air conditioner is used, the rotating sleeve 2 and an injection opening of the air conditioner are connected and fixed with each other through the connecting sleeve 3, then the injection equipment is opened, a refrigerant is injected into the connecting head 1 through the connecting pipe 25, the connecting rod 16 is ejected downwards through the high-pressure refrigerant, the connecting rod 16 is separated from the cylindrical hole 24, and further the refrigerant enters a refrigerant storage tank of the air conditioner, and during injection, high-pressure gas is sucked into the gas guide pipe 13 through the gas inlet hole 27, the gas enters the accommodating cavity 14 at the top of the closed cavity 11 through the gas guide pipe 13, the baffle plate 15 is pressed downwards through pressure, the baffle plate 15 drives the connecting rod 16 to move downwards, so that the end part of the connecting rod 16 is further far away from the cylindrical hole 24, the injection speed is accelerated, the gas pressure in the refrigerant storage tank is guided into the clamping groove 18 through the gas in the gas guide pipe 17 at the center of the connecting rod 16, and the closed, the bottom sealing ball 20 of the clamping groove 18 is separated, so that gas enters the bottom of the sealing ball 20, in the injection process, the pressure inside the refrigerant storage tank is increased, so that the pressure at the bottom of the baffle plate 15 is increased, so that the pressure inside the closed cavity 11 tends to be balanced, the baffle plate 15 is lifted under the driving of the pressure spring 21, so that the end part of the connecting rod 16 is close to the cylindrical hole 24, so that the flow is reduced, so that the stability of the equipment is ensured, when an accident occurs and emergency disconnection is needed, or the injection is temporarily stopped, the connector 1 can be rotated, because the rotating sleeve 2 and the refrigerant storage tank are mutually fixed, so that the annular groove 6 and the snap ring 4 are relatively rotated, so that the spiral strip 5 and the first gear 7 are mutually rotated, and because the spiral strip 5 and the first gear 7 are mutually clamped, when the spiral strip 5 rotates, the first gear 7 is also driven to rotate, and then the first gear 7 drives the second gear 9 to rotate through the toothed belt 8, the second gear 9 drives the third gear 10 through the toothed belt 8, the third gear 10 drives the rotary column 12 to rotate through the toothed belt 8, the air inlet 27 and the bottom air duct 13 are communicated with each other through the air guide hole 22 inside the rotary column 12, so that the gas inside the connector 1 reaches the bottom of the baffle 15, and the sealing ball 20 at the bottom is jacked up by the larger gas pressure, so that the vent pipe 17 guides the gas into the accommodating cavity 14, because the gas pressure inside the connector 1 is higher than that inside the refrigerant storage tank, the baffle 15 is further lifted, thereby driving the connecting rod 16 to ascend, further leading the cylindrical hole 24 to be sealed with the connecting rod 16 again, further, the interior of the connector 1 is sealed to prevent gas from being ejected, thereby achieving the function of emergency stop.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an adjustable dashing of air conditioner refrigerant filling machine annotates head, includes connector (1), its characterized in that: the bottom of the connector (1) is provided with a rotating sleeve (2), the outer wall of the rotating sleeve (2) is provided with a connecting sleeve (3) in a surrounding manner, the top of the rotating sleeve (2) is fixedly connected with a clamping ring (4), the top of the clamping ring (4) is fixedly connected with a spiral strip (5), the bottom of the connector (1) is provided with an annular groove (6) at a position corresponding to the spiral strip (5), the top of the annular groove (6) is provided with a first gear (7) which is meshed with the spiral strip (5), the top of the first gear (7) is provided with a second gear (9), the first gear (7) is connected with the second gear (9) through a toothed belt (8), one side of the second gear (9) is provided with a third gear (10), and the second gear (9) drives the third gear (10) to rotate through the toothed belt (8), a closed cavity (11) is formed in the center of the interior of the connector (1), a rotating column (12) is arranged inside the side wall of the closed cavity (11), an air guide pipe (13) is vertically arranged at the top and the bottom of the rotating column (12), the third gear (10) drives the rotating column (12) to rotate through a toothed belt (8), an accommodating cavity (14) is formed in the center of the interior of the closed cavity (11), a baffle (15) is arranged at the bottom of the accommodating cavity (14), a connecting rod (16) is arranged at the bottom of the baffle (15), an air pipe (17) penetrates through the interior of the connecting rod (16), and a clamping groove (18) penetrates through one side of the baffle (15); a sliding rod (19) penetrates through the inside of the clamping groove (18), sealing balls (20) are arranged at the top and the bottom of the sliding rod (19), the center of the clamping groove (18) is communicated with the vent pipe (17), and arc-shaped grooves corresponding to the sealing balls (20) are formed in the top and the bottom of the clamping groove (18); an air guide hole (22) is formed in the side wall of one end of the rotating column (12), the air guide hole (22) is L-shaped, a fixed gear (23) is arranged on the outer wall of one side, away from the air guide hole (22), of the rotating column (12) in a surrounding mode, and a toothed belt (8) is arranged on the outer wall of the fixed gear (23) in a surrounding mode;
in the injection process, the pressure in the refrigerant storage tank is increased, so that the pressure at the bottom of the baffle plate (15) is driven to be increased, the pressure in the closed cavity (11) tends to be balanced, the baffle plate (15) is driven to rise by the pressure spring (21), the end part of the connecting rod (16) is close to the cylindrical hole (24), so that the flow is reduced, the equipment is ensured to be stable, when an accident occurs and emergency disconnection is needed, or filling is needed to be stopped temporarily, the connecting head (1) can be rotated, because the rotating sleeve (2) and the refrigerant storage tank are fixed with each other, the annular groove (6) and the snap ring (4) are rotated relatively, so that the spiral strip (5) and the first gear (7) are rotated mutually, and because the spiral strip (5) and the first gear (7) are clamped with each other, when the spiral strip (5) is rotated, the first gear (7) is also driven to rotate, and then the first gear (7) drives the second gear (9) to rotate through the toothed belt (8), the second gear (9) drives the third gear (10) through the toothed belt (8), and then the third gear (10) drives the rotating column (12) to rotate through the toothed belt (8), the air inlet hole (27) and the air guide pipe (13) at the bottom are communicated with each other through the air guide hole (22) in the rotating column (12), so that the gas in the connector (1) reaches the bottom of the baffle plate (15), and the sealing ball (20) at the bottom is jacked up through larger air pressure, so that the air is guided into the accommodating cavity (14) through the air vent pipe (17), and because the gas pressure in the connector (1) is higher than the inside of the refrigerant storage tank, the baffle plate (15) rises, and then the connecting rod (16) is driven to rise, and then the cylindrical hole (24) and the connecting rod (16) are sealed with each other again, further, the interior of the connector (1) is sealed to prevent gas from being sprayed out, thereby achieving the function of emergency interruption and stop.
2. The adjustable flushing head of an air conditioner refrigerant filling machine according to claim 1, wherein: the bottom of baffle (15) is fixedly connected with pressure spring (21), connecting rod (16) passes pressure spring (21)'s center, the top and baffle (15) fixed connection of connecting rod (16), breather pipe (17) pass the lateral wall center of baffle (15).
3. The adjustable flushing head of an air conditioner refrigerant filling machine according to claim 1, wherein: the second gear (9) is connected with the third gear (10) through a toothed belt (8), the third gear (10) is connected with the rotating column (12) through the toothed belt (8), the first gear (7), the second gear (9) and the third gear (10) are of a double-gear structure, and the two gears are fixed with each other.
4. The adjustable flushing head of an air conditioner refrigerant filling machine according to claim 1, wherein: the bottom of snap ring (4) is vertical and is provided with the through hole, the outer wall of through hole is and encircles and is provided with cylinder hole (24), the position that the bottom of connecting rod (16) is close to cylinder hole (24) is provided with the fixed block, the fixed block and cylinder hole (24) joint each other.
5. The adjustable flushing head of an air conditioner refrigerant filling machine according to claim 1, wherein: the top of snap ring (4) is the spiral and is provided with helical strip (5), helical strip (5) and the mutual joint of tooth of first gear (7) outer wall, first gear (7) are connected with connector (1) rotation each other.
6. The adjustable flushing head of an air conditioner refrigerant filling machine according to claim 1, wherein: the outer wall of closed chamber (11) is to encircle and is provided with fixed pipe (26), the inside of fixed pipe (26) is cavity, third gear (10) are located the inside of fixed pipe (26), the lateral wall of closed chamber (11) is provided with inlet port (27), inlet port (27) and rotation post (12) communicate each other, the top of connector (1) is provided with connecting pipe (25), connecting pipe (25) and connector (1) inside communicate each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910715307.2A CN110398096B (en) | 2019-08-05 | 2019-08-05 | Adjustable punching injection head of air conditioner refrigerant filling machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910715307.2A CN110398096B (en) | 2019-08-05 | 2019-08-05 | Adjustable punching injection head of air conditioner refrigerant filling machine |
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| CN110398096A CN110398096A (en) | 2019-11-01 |
| CN110398096B true CN110398096B (en) | 2020-12-22 |
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| DE10361068A1 (en) * | 2003-10-22 | 2005-05-25 | Wiederkehr, Kurt | Valve |
| KR100597501B1 (en) * | 2004-07-20 | 2006-07-05 | (주) 에이치비에스 | Relief device for providing oxygen |
| DE102007005864A1 (en) * | 2007-02-06 | 2008-08-14 | Sprügel, Friedrich A. | Connecting device for connecting a pressure vessel with a Flüssiggaseinfüllstutzen |
| CN203501579U (en) * | 2013-08-29 | 2014-03-26 | 深圳麦克维尔空调有限公司 | Coolant filling system and connecting device thereof |
| CN105987206A (en) * | 2015-01-30 | 2016-10-05 | 浙江三花股份有限公司 | Stop valve |
| CN206018268U (en) * | 2016-08-30 | 2017-03-15 | 成都安迪生测量有限公司 | A kind of intelligent filling gun |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110398096A (en) | 2019-11-01 |
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