CN2527936Y

CN2527936Y - Fast liquid-filling valve for air conditioner

Info

Publication number: CN2527936Y
Application number: CN 02216134
Authority: CN
Inventors: 蔡旭军; 汪道赏
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-03-12
Filing date: 2002-03-12
Publication date: 2002-12-25
Anticipated expiration: 2012-03-12

Abstract

The utility model relates to a refrigerating equipment, in particular to the improvement of a liquid adding tube for air conditioners. The utility model is composed of a tube shaped valve body and a market offered valve core. An internal thread matched with an external thread of the valve core is arranged at the lower port of the valve body; a tube hole with a trapezoid lengthwise section is arranged above the internal thread; a sealing ring on the valve core is arranged on the truncated cone slant of the tube hole. The utility model has the advantage of rapid assembling, compensate sealing and good sealing effect.

Description

The quick charging valve of air-conditioner

Technical field:

The utility model relates to refrigeration plant, particularly the improvement of detachable air conditioner topping up pipe.

Background technology:

In existing separate type air conditioner in the machine pipe-line system, the method of filling cold-producing medium or other medium is: adopt on the joint of indoor set input tube connector to connect the copper union nut and have bell-mouthed copper pipe, fill cold-producing medium or other medium with the liquid feeding rifle then, it is dead again copper pipe to be pressed from both sides flat weldering after the filling, is used for medium in the sealing pipeline system.Need the fastening torque that has bell-mouthed copper pipe and union nut weight management but adopt said method to exist,, just exist the defective that pipeline inner refrigerant or other medium leak outside as fastening not tight.And when air conditioner was installed and used, manufacturer used the adapter that has the inside and outside unit of union nut junction chamber, passed into disuse and will be loaded on the copper union nut of indoor set input tube connector joint and have bell-mouthed copper pipe, the waste copper material.Adopt welding in addition, the technology more complicated adopts acetylene, oxygen welding security not high in welding process, and the waste gas of generation has greater environmental impacts.Chinese patent 00268565 " topping up pipe (2) fast " has been introduced a kind of technical scheme, is made up of body, cone poppet, spring, baffle plate, ring washer.And very difficulty of above-mentioned part will be installed in tiny pipe, make efficiency is low.To spool cone face process required precision height, if fineness then is easy to generate leakage inadequately, need to change spool after the conical surface wearing and tearing in addition, this has also improved production cost.

Summary of the invention:

The purpose of this utility model is the deficiency that exists at above-mentioned prior art, and a kind of good sealing effect is provided, and technology is simple, the quick charging valve of safety, environmental protection.

The utility model is made up of tubular valve body of plastics and valve inside, it is characterized in that the valve body lower end mouth is shaped on the internal thread that cooperates with the valve inside external screw thread, the internal thread top has one section longitudinal section to be up-small and down-big trapezoidal pore, and the sealing ring on the valve inside is positioned at the inclined-plane of truncated cone-shaped pore.

Valve inside adopts commercially available standard component.

The utility model replaces the plastics valve body original copper nut and has bell-mouthed copper pipe, itself and copper connector engages, sealing easily; Owing to adopt commercially available valve inside, only need to make tubular valve body, valve inside is screwed in i.e. assembling finishes in the valve body lower end mouth, assemble laborsaving, quick; The sealing ring of valve inside cooperates with the truncated cone-shaped pore, when long-time use back produces leakage if ring wear takes place, only needs that valve inside is continued precession and just can realize excellent sealing again, need not to change valve inside; Valve inside belongs to standard component, and the air pressure of unlatching standard is arranged, and grasps topping up time and filling amount easily.

Description of drawings:

Fig. 1 is the utility model example structure figure, and Fig. 2 is Fig. 1 vertical view.

The specific embodiment:

In conjunction with Fig. 1.Valve body 1 injection mo(u)lding, its upper end and copper connector engages, the lower port pore is shaped on the internal thread that cooperates with the external screw thread of valve inside 2, the internal thread top has one section to make round table surface pore 1-2, after valve inside 2 screws in valve body 1 lower port, its sealing ring 3 just is positioned at the round table surface 1-2 of valve body 1, screws in deeply more, and sealing surface is big more.

During topping up, push up in the push rod 2-2 of liquid feeding rifle head with valve inside 2, chock plug 2-1 and core body produce at interval, and media fluid is from entering in the pipe at interval.Because the sealing that valve inside 2 self has and the design of round platform sealing surface make to the utlity model has better sealing effectiveness and compensation sealing performance.

Claims

1, the quick charging valve of a kind of air-conditioner, form by tubular valve body of plastics (1) and valve inside (2), it is characterized in that being shaped in valve body (1) lower port internal thread that cooperates with valve inside (2) external screw thread, this internal thread top has one section longitudinal section to be up-small and down-big trapezoidal pore (1-2), and the sealing ring (3) on the valve inside (2) is positioned at the inclined-plane of pore (1-2).