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CN-224215611-U - Portable automobile air conditioner refrigerant adding device

CN224215611UCN 224215611 UCN224215611 UCN 224215611UCN-224215611-U

Abstract

The portable automobile air conditioner refrigerant adding device comprises a filling head, a connecting hose, a pressure gauge and an adapter connector, wherein the filling head is in sealing connection with an outlet for filling refrigerant, the filling head comprises an automatic pressing reset type sealing valve and a folding angle pipe connected with a valve core of the automatic pressing reset type sealing valve, the folding angle pipe is connected with the connecting hose in a plugging mode, the connecting hose comprises a first connecting hose and a second connecting hose, the filling head is connected with the pressure gauge through the first connecting hose, the pressure gauge is connected with the adapter connector through the second connecting hose, the adapter connector is connected with an automobile air conditioner low-pressure port, filling operation and connecting operation can be conveniently achieved, sealing performance is good, injection of the automobile air conditioner refrigerant can be accurately controlled, and meanwhile a leakage detection function is achieved.

Inventors

  • ZENG YONGHUA
  • ZENG HUI

Assignees

  • 广东北莫新材料有限公司

Dates

Publication Date
20260508
Application Date
20250411

Claims (9)

  1. 1. The portable automobile air conditioner refrigerant adding device is characterized by comprising a filling head, a connecting hose, a pressure gauge and an adaptive connector; the filling head is in sealing connection with an outlet for filling the refrigerant, and is provided with an automatic pressing reset type sealing valve and a bevel pipe connected with a valve core of the automatic pressing reset type sealing valve; the automatic pressing reset type sealing valve comprises an automatic pressing reset knob and a sealing valve main body, the automatic pressing reset knob is released to realize the sealing connection between the automatic pressing reset type sealing valve and the agent outlet, so that the refrigerant enters a corner tube through the valve core, the corner tube is connected with a connecting hose through plugging, and the connecting hose comprises a first connecting hose and a second connecting hose; the automatic pressing reset knob is rotatably arranged above the main body of the automatic pressing reset type sealing valve; The filling head further comprises a protective cover, an O-shaped sealing ring and an O-shaped gasket, wherein the O-shaped sealing ring and the O-shaped gasket are used for providing buffer sealing when the filling head and the refrigerant outlet of the refrigeration tank are detachably installed.
  2. 2. The portable automotive air conditioning refrigerant addition device of claim 1, wherein the protective cover is removably mounted to the filler head.
  3. 3. The portable automotive air conditioning refrigerant addition device as recited in any one of the preceding claims 1-2, characterized in that said automatic push return type sealing valve and said angled tube are of an integral injection molded construction.
  4. 4. The portable automotive air conditioning refrigerant addition device as recited in any one of the preceding claims 1 to 2, characterized in that said automatic pressing reset type sealing valve and said corner tube are of a split molding structure.
  5. 5. The portable automobile air conditioner refrigerant adding device according to claim 4, wherein the valve core of the automatic pressing reset type sealing valve is connected with the bevel pipe through threads.
  6. 6. The portable automobile air conditioner refrigerant adding device according to claim 4, wherein the valve core of the automatic pressing reset type sealing valve is connected with the bevel pipe in a clamping manner.
  7. 7. Portable automotive air conditioning refrigerant addition device according to any of the preceding claims 1-2, characterized in that the pressure gauge is a passive pressure gauge or an active pressure gauge.
  8. 8. Portable automotive air conditioning refrigerant addition device according to any of the preceding claims 1-2, characterized in that an aerosol is used instead of automotive air conditioning refrigerant for aerosol addition.
  9. 9. The portable automotive air conditioning refrigerant addition device according to claim 8, wherein the aerosol is a tire repair liquid for the addition of the tire repair liquid.

Description

Portable automobile air conditioner refrigerant adding device Technical Field The utility model relates to the field of automobile air conditioner refrigerants, in particular to a portable automobile air conditioner refrigerant adding device. Background The automobile air conditioner refrigerant is a working medium of an automobile air conditioner, and absorbs heat through compression and expansion and evaporation, so that a refrigeration effect is generated. Unlike common household or commercial air conditioner, the compressor of the automobile air conditioner is a semi-closed compressor, and the use environment of the automobile air conditioner is complex and severe, high temperature, oil, gas and water pollution and jolt vibration are caused, so that the refrigerant leakage and pollution of the automobile air conditioner are caused, and the refrigerant filling is an important service of each maintenance factory in summer. In the prior art, some portable air-filled refrigerants exist, and a driver can automatically and directly add the refrigerants to an air-conditioning system. The traditional refrigerant adding tool is to puncture a refrigerant outlet in a gas tank through a puncture needle so as to enable the refrigerant to flow out of the gas tank and further flow into an automobile air conditioning system, but a cover of the gas tank opening is usually required to be made of iron or other metals with certain strength, rigidity and hardness due to the sealing requirement. Thus, the requirements for the lancet are relatively high. In addition, the cover of the refrigerant outlet of the conventional air tank cannot be effectively sealed once being pierced, so that the residual refrigerant in the tank can be leaked into the air, thereby causing waste of the refrigerant and air pollution. Like chinese patent application publication CN216742877U, it discloses a novel refrigerant tank injection valve, including refrigerant tank and valve body, the outside surface fixedly connected with disk lock nut of valve body, the valve body upper surface fixedly connected with valve cap, valve cap one side surface fixedly connected with screwed joint, valve cap upper end fixedly connected with valve rod sheath, valve rod sheath internal thread connection has the valve rod, valve rod upper end fixedly connected with dished handle, valve rod lower extreme fixedly connected with needle valve, needle valve lower extreme is connected with the sealing washer bottom plate, sealing washer bottom plate lower surface fixedly connected with first sealing washer, needle valve surface fixedly connected with second sealing washer, the inside sealed chamber that is equipped with of valve body. For another example, chinese patent grant publication CN211903394U discloses a device for filling refrigerant in an automotive air conditioner, which comprises a storage tank, a control valve, a vent pipe and a working cylinder, wherein a buffer sleeve is sleeved on the outer wall of the storage tank, a wear-resistant sleeve is sleeved outside the buffer sleeve, a locking cover is arranged at the top of the wear-resistant sleeve, the control valve is arranged at the top of the storage tank, the right side of the control valve is connected with the vent pipe, a flowmeter is arranged on the vent pipe, a pipe joint is arranged at the tail end of the vent pipe, the working cylinder is arranged on the vent pipe, a one-way valve is arranged at the left side of the inner cavity of the working cylinder, and a filter screen is arranged at the right side of the inner cavity of the working cylinder. The injection valve of the automobile air conditioner refrigerant filling device has a complex structure and inconvenient operation, and the injection of the refrigerant cannot be accurately controlled. However, there is a need in the art for a portable automotive air conditioner refrigerant adding device that is adaptable to any configuration of injection valve, is simple to operate, and is capable of precisely controlling the amount of refrigerant injected. Disclosure of utility model The utility model aims to solve the problems, and provides a portable automobile air conditioner refrigerant adding device which can conveniently realize filling operation and connecting operation, has good sealing performance, can accurately control the injection of automobile air conditioner refrigerant, and has a leakage detection function. A portable automobile air conditioner refrigerant adding device is characterized by comprising a filling head, a connecting hose, a pressure gauge and an adaptive connector, wherein the filling head is in sealing connection with a refrigerant outlet of a filling refrigerant, the filling head is provided with an automatic pressing reset type sealing valve and a bevel pipe connected with a valve core of the automatic pressing reset type sealing valve, the automatic pressing reset type sealing valve comprises an automatic pressing reset knob