KR-102961662-B1 - Air Conditioner Pipe Connecting Apparatus

Abstract

The air conditioner pipe connection device according to the disclosed invention comprises: a body portion having a pipe insertion hole formed through it, which is partially inclined to allow pipes to be inserted from both sides, and a nut screw-fastened to both ends; and a pressure compression portion symmetrically arranged on the opposite outer side of the pipe insertion hole, through which the pipe passes, and having a pressure projection formed protruding from the inside, wherein when the nut is fastened, the pressure projection presses the outer surface of the pipe and simultaneously presses a sealing member at the end to maintain airtightness with the pipe. According to the present invention, during the process of inserting pipes into the pipe insertion holes on both sides of the body part and tightening nuts, the pressure compression part is compressed according to the degree of tightening of the nuts, and the pressure projection that is contracted thereby prevents pipe rotation by compressing the outer diameter of the pipe, thereby providing a pipe detachment prevention function. Additionally, as the pressure compression part advances, one side of the pressure compression part presses against the airtight sealing member, and as the pressure jaw of the pressure compression part contacts the sealing jaw of the pipe insertion hole, a solid sealing and fixation are possible. Furthermore, when the nut is rotated, the guide projection of the pressure compression part moves back and forth along the guide rail groove, thereby preventing rotation of the airtight sealing member and twisting of the pipe.

Inventors

• 황성수
• 신인녕

Dates

Publication Date

20260507

Application Date

20250929

Claims (6)

1. A body part having a pipe insertion hole formed through it, partially inclined to allow pipe insertion from both sides, and nuts spirally fastened at both ends; and A pressure compression part is symmetrically arranged on the opposite outer side of the pipe insertion hole, through which the pipe penetrates, and has a pressure projection formed protruding inside, wherein when the nut is fastened, the pressure projection presses the outer surface of the pipe and at the same time, the end presses a sealing member to maintain airtightness with the pipe. An air conditioner pipe connection device characterized in that the above-mentioned pressure compression part has a guide projection formed on its outer surface, and the guide projection moves along a guide rail groove formed in the outer insertion hole of the pipe insertion hole.
2. In paragraph 1, An air conditioner pipe connection device characterized by the above-mentioned pressure projection being able to be deformed starting from the uncut portion by radially cutting the inclined outer surface of the above-mentioned pressure compression portion.
3. In paragraph 1, An air conditioner pipe connection device characterized in that the above guide projections and guide rail grooves are formed radially.
4. In paragraph 1, An air conditioner pipe connection device characterized in that the above-mentioned guide projection and guide rail groove are provided in a curved or polygonal shape.
5. In paragraph 1, An air conditioner pipe connection device characterized by having at least one set of the above-mentioned pressure compression parts.
6. In paragraph 1, An air conditioner pipe connection device characterized by the pipe insertion hole having a detachment prevention device provided with an inclined radial catch on the inner surface of the annular structure to prevent the outer surface of the pipe from detaching when the pipe is inserted.

Description

Air Conditioner Pipe Connecting Apparatus The present invention relates to an air conditioner pipe connection device, and more specifically, to a device for connecting adjacent air conditioner pipes to each other. Generally, the piping of an air conditioner is made of copper and is configured to connect an indoor unit equipped with an evaporator and an outdoor unit equipped with a condenser, compressor, and expansion device, and is installed to connect at least one indoor unit and an outdoor unit according to the installation spacing. The conventional method of connecting pipes involved fixing them by welding while in surface contact with each other; however, when working inside an apartment, this method had problems such as exposure to fire hazards, uneven welding, and refrigerant gas leakage due to damage to the welded areas. Thus, in order to solve the above-mentioned problems, pipes are connected to each other using a connecting device, and technology related to the connecting device has been proposed in Korean Patent Publication No. 2010-0096974. However, Patent Document 1 had a problem in that it was difficult to achieve a secure fixation because the pipe was fixed only through a sealing member that is compressed through a pressurizing member. FIG. 1 is a perspective view illustrating an air conditioner pipe connection device of the present invention. FIG. 2 is an exploded perspective view illustrating the air conditioner pipe connection device of the present invention. FIGS. 3 and FIGS. 4 are cross-sectional views illustrating the state before and after operation of the air conditioner pipe connection device of the present invention. FIG. 5 is a perspective view showing the body portion of the air conditioner pipe connection device of the present invention. FIG. 6 is a perspective view illustrating a pressure compression part in the air conditioner pipe connection device of the present invention. Figure 7 is a cross-sectional view along line AA of Figure 1. The above-mentioned objectives, features, and other advantages of the present invention will become more apparent by describing preferred embodiments of the present invention in detail with reference to the accompanying drawings. Hereinafter, an air conditioner pipe connection device according to an embodiment of the present invention will be described in detail with reference to the attached drawings. FIG. 1 is a perspective view illustrating an air conditioner pipe connection device of the present invention, FIG. 2 is an exploded perspective view illustrating an air conditioner pipe connection device of the present invention, FIG. 3 and FIG. 4 are cross-sectional views illustrating the state before and after operation of the air conditioner pipe connection device of the present invention, FIG. 5 is a perspective view illustrating the body part of the air conditioner pipe connection device of the present invention, FIG. 6 is an exploded perspective view illustrating the compression part and the pressurizing part of the air conditioner pipe connection device of the present invention, and FIG. 7 is a cross-sectional view taken along line A-A of FIG. 1. Referring to FIGS. 1 and 7, an air conditioner pipe connection device (100) according to an embodiment of the present invention includes a body part (110) and a pressure compression part (120), and is a device that firmly connects opposing parts of pipes (P), which are copper pipes used in an air conditioner, while maintaining airtightness. At this time, since the air conditioner pipe connection device (100) of the present invention connects both pipes (P), both sides are provided with a symmetrical structure. As shown in FIGS. 1 to 5, the body portion (110) has a pipe insertion hole (112) formed through it in the axial direction so that a pipe (P) can be inserted from both sides, and a spiral is formed at both ends of the outer surface so that a nut (114) can be fastened in a spiral manner. The body portion (110) is formed in a hexagonal column shape so that it can be supported by a tool when fastening the nut (114) along the center of the outer surface. At this time, the pipe insertion hole (112) is provided with a stepped structure in which the inner diameter gradually expands from the center to the outside, and is composed of a pipe catch projection (1120), a pipe coupling groove (1122), an inclined groove (1124), an O-ring insertion groove (1126), and an outer insertion groove (1128). The pipe stopper (1120) is provided at the center to limit the insertion length of both pipes (P), and the ends of both pipes (P) come into contact. The pipe connection grooves (1122) are formed on both sides centered on the pipe catch projection (1120), and are symmetrically formed on both sides with an inner diameter corresponding to the diameter of the pipe (P) based on the pipe catch projection (1120), so that the ends of the pipe (P) are connected to each other. The inclined groove (1124) is formed at the end