Branch pipe for central air conditioner and mounting structure of branch pipe

Abstract

The utility model provides a branch pipe for a central air conditioner and an installation structure of the branch pipe, and relates to the technical field of air conditioner branch pipes, the branch pipe comprises a pipe body, the pipe body comprises a main pipe, a first flow dividing pipe and a second flow dividing pipe, and the first flow dividing pipe and the second flow dividing pipe are integrally formed and are of a U-shaped structure; the main pipe and the horizontal sections of the first flow dividing pipe and the second flow dividing pipe are integrally formed through stamping, and the supporting assembly comprises connecting sleeves oppositely arranged on the outer walls of the first flow dividing pipe and the second flow dividing pipe in a sleeving mode in pairs, screw cylinders rotationally arranged on the side walls of the connecting sleeves and a screw connected between the two screw cylinders in a threaded mode. By means of the pipe body integrally formed through stamping, the quality of the pipe body can be improved, the problem of weld joint cracking caused by welding missing in a welding mode is avoided, the first flow dividing pipe and the second flow dividing pipe can be supported, the bending phenomenon of the first flow dividing pipe and the second flow dividing pipe is avoided, and the pipe body and the refrigerant straight pipe can be rapidly and stably installed.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning branch pipes, and in particular to a branch pipe used for a central air-conditioning and an installation structure thereof. Background Art

[0002] The regulating branch pipe is also called the air conditioning branch device or branch pipe, branch pipe, etc. It is a connecting pipe used in the VRV air conditioning system to connect the main unit and multiple terminal devices. It is divided into a gas pipe and a liquid pipe. The refrigerant can be divided into other branch pipes and terminal evaporators through the liquid pipe diversion. The refrigerant absorbs heat in the evaporator and becomes gas, and then flows back to the compressor of the main unit through the gas pipe.

[0003] At present, the branch pipe of the air conditioner is generally welded by the main pipe and the branch pipe of the U-shaped structure. Because there are many welding points, it is easy to have welding leakage problems, which in turn easily cause the weld cracking of the branch pipe. In addition, after long-term use, the U-shaped branch pipe is prone to bending due to long load-bearing time or aging, which affects the normal use function of the branch pipe. In addition, the branch pipe and the refrigerant straight pipe are also connected by spot welding, which is inconvenient to operate and wastes time. Utility Model Content

[0004] The utility model aims to solve the problems that the existing branch pipes for central air conditioners are not only inconvenient to install, but also prone to cracking of the pipe body welding seams and bending of the branch pipes.

[0005] In order to achieve the above-mentioned invention object, the utility model provides the following technical solutions:

[0006] A branch pipe for a central air conditioner, comprising a pipe body, the pipe body comprising a main pipe, a first branch pipe and a second branch pipe, the first branch pipe and the second branch pipe are integrally formed and have a U-shaped structure, the main pipe and the horizontal sections of the first branch pipe and the second branch pipe are integrally formed by stamping, and further comprising:

[0007] The supporting assembly comprises connecting sleeves which are sleeved on the outer walls of the first shunt pipe and the second shunt pipe in pairs, a screw barrel which is rotatably arranged on the side wall of the connecting sleeve, and a screw rod which is threadedly connected between the two screw barrels.

[0008] As a preferred technical solution of the present application, reinforcing ribs are provided at the connection between the first shunt pipe, the second shunt pipe and the main pipe.

[0009] As a preferred technical solution of the present application, the connecting sleeve is made of rubber.

[0010] As a preferred technical solution of the present application, the outer wall of the tube body is provided with a protective layer, which includes a reinforced viscose composite layer, a glass fiber layer, a reinforced alloy layer and a stainless steel anti-rust layer. The glass fiber layer is located on the outer surface of the reinforced viscose composite layer, the reinforced alloy layer is located on the outer surface of the glass fiber layer, and the stainless steel anti-rust layer is located on the outer surface of the reinforced alloy layer.

[0011] The utility model also discloses a branch pipe installation structure for a central air conditioner, comprising a straight pipe threadedly connected to the inside of a main pipe, a threaded column arranged on the outer wall of the straight pipe, and a threaded sleeve slidably arranged on the outer wall of the main pipe and threadedly connected to the threaded column.

[0012] As a preferred technical solution of the present application, a sealing gasket is provided on the end face of the straight pipe close to the main pipe, a sealing ring is provided on the inner wall of the main pipe, the sealing gasket is in a T-shaped structure, and a sealing groove matching the sealing gasket is provided on the surface of the sealing ring.

[0013] As a preferred technical solution of the present application, a retaining ring is provided on the end face of one side of the main pipe close to the straight pipe.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The tube body is formed in one piece by stamping, so that the quality of the tube body can be improved, and the problem of weld cracking caused by welding leakage can be avoided. After the air-conditioning branch pipe is installed, the two relative connecting sleeves can be respectively mounted on the first branch pipe and the second branch pipe through the provided support assembly, and then the two screw barrels are rotated to move on the screw rod, so that the screw barrel and the screw move to a suitable position to support the first branch pipe and the second branch pipe, thereby solving the problem of the first branch pipe and the second branch pipe bending after long-term use in the prior art.

[0016] 2. When the pipe body and the refrigerant straight pipe need to be installed, first install the straight pipe thread inside the main pipe. At this time, the threaded column will abut against the end face of the main pipe. At this time, the threaded sleeve is rotated to connect to the outside of the threaded column, so that the straight pipe and the main pipe can be installed and fixed with rotational force in two directions. Continuously rotating the straight pipe and the main pipe in two directions will only make them tighter and tighter, which solves the problem of time-consuming and labor-intensive connection of the straight pipe and the main pipe by welding in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0018] Figure 2 It is a partial cross-sectional structural diagram of the utility model;

[0019] Figure 3 This is a structural diagram of the split straight pipe and main pipe of the utility model;

[0020] Figure 4 This is a structural diagram of the support assembly of the utility model;

[0021] Figure 5 For the utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0022] Indicated in the figure:

[0023] 1. Pipe body; 101. Main pipe; 102. First shunt pipe; 103. Second shunt pipe; 2. Connecting sleeve; 3. Screw barrel; 4. Screw rod; 5. Reinforcing rib; 6. Straight pipe; 601. Sealing gasket; 7. Threaded column; 8. Threaded sleeve; 9. Sealing ring; 10. Retaining ring. DETAILED DESCRIPTION

[0024] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0025] like Figure 1 , Figure 2 and Figure 4 As shown, this embodiment proposes a branch pipe for a central air conditioner, including a pipe body 1, the pipe body 1 includes a main pipe 101, a first branch pipe 102 and a second branch pipe 103, the first branch pipe 102 and the second branch pipe 103 are integrally formed and have a U-shaped structure, the main pipe 101 and the horizontal sections of the first branch pipe 102 and the second branch pipe 103 are integrally formed by stamping, and the supporting assembly includes connecting sleeves 2 that are relatively sleeved on the outer walls of the first branch pipe 102 and the second branch pipe 103, a screw barrel 3 that is rotatably arranged on the side wall of the connecting sleeve 2, and a screw rod 4 that is threadedly connected between the two screw barrels 3;

[0026] The main pipe 101, the first branch pipe 102 and the second branch pipe 103 are integrally formed by stamping, so that the sealing of the pipe body 1 can be improved, and the problem of welding leaks and cracks in the welding seam caused by manual spot welding can be avoided, thereby improving the quality and service life of the pipe body 1. When the pipe body 1 needs to be installed, the two opposing connecting sleeves 2 can be respectively sleeved on the first branch pipe 102 and the second branch pipe 103, and then the screw barrel 3 is rotated to move on the screw rod 4, and the position of the screw barrel 3 is adjusted so that the screw barrel 3 can just press the connecting sleeve 2, thereby supporting the first branch pipe 102 and the second branch pipe 103, preventing the first branch pipe 102 and the second branch pipe 103 from bending due to aging of the load after long-term use of the pipe body 1, thereby further improving the service life of the pipe body 1.

[0027] Among them, reinforcing ribs 5 are provided at the connection points between the first diverter pipe 102 and the second diverter pipe 103 and the main pipe 101; the provided reinforcing ribs 5 can improve the connection stability between the first diverter pipe 102 and the second diverter pipe 103 and the main pipe 101, and avoid shaking between the first diverter pipe 102 and the second diverter pipe 103 and the main pipe 101.

[0028] In addition, the connecting sleeve 2 is made of rubber; the connecting sleeve 2 is elastic and can be easily mounted on the tube bodies 1 of different thicknesses and sizes.

[0029] It should be noted that a protective layer is provided on the outer wall of the tube body 1, and the protective layer includes a reinforced viscose composite layer, a glass fiber layer, a reinforced alloy layer and a stainless steel anti-rust layer. The glass fiber layer is located on the outer surface of the reinforced viscose composite layer, the reinforced alloy layer is located on the outer surface of the glass fiber layer, and the stainless steel anti-rust layer is located on the outer surface of the reinforced alloy layer. The protective layer composed of the reinforced viscose composite layer, the glass fiber layer, the reinforced alloy layer and the stainless steel anti-rust layer can enhance the hardness of the tube body 1, making it less likely to rust, having higher strength and increasing service life.

[0030] like Figure 3 and Figure 5 As shown, the utility model also discloses a branch pipe installation structure for a central air conditioner, comprising a straight pipe 6 threadedly connected to the inside of a main pipe 101, a threaded column 7 arranged on the outer wall of the straight pipe 6, and a threaded sleeve 8 slidably arranged on the outer wall of the main pipe 101 and threadedly connected to the threaded column 7;

[0031] When it is necessary to install and connect the pipe body 1 and the refrigerant straight pipe 6, first thread the straight pipe 6 into the inside of the main pipe 101 so that the threaded column 7 abuts against the end face of the main pipe 101. Then rotate the 01 threaded sleeve 8 on the outer wall of the main pipe 1 so that the threaded sleeve 8 is threaded onto the threaded column 7. Thus, the straight pipe 6 and the main pipe 101 can be installed and fixed from two directions. No matter in which direction the straight pipe 6 and the main pipe 101 rotate due to shaking or other factors, it will only cause the straight pipe 6 and the main pipe 101 to become tighter and tighter, thereby improving the installation speed and stability of the pipe body 1.

[0032] Among them, a retaining ring 10 is provided on one end face of the main pipe 101 close to the straight pipe 6; when the rotating threaded sleeve 8 is connected to the threaded column 7, the retaining ring 10 can block the threaded sleeve 8 moving to the edge of the main pipe 101 to prevent the threaded sleeve 8 from detaching from the main pipe 101.

[0033] like Figure 3 and Figure 5As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, a sealing gasket 601 is provided on the end face of the straight pipe 6 close to the main pipe 101, a sealing ring 9 is provided on the inner wall of the main pipe 101, the sealing gasket 601 is in a T-shaped structure, and a sealing groove matching with the sealing gasket 601 is provided on the surface of the sealing ring 9;

[0034] When the straight pipe 6 is screwed into the main pipe 101, the sealing gasket 601 on the end face of the straight pipe 6 will contact the sealing ring 9 inside the main pipe 101. At this time, the straight pipe 6 continues to be screwed in, so that the T-shaped sealing gasket 601 is deformed and forcefully passes through the sealing groove on the sealing ring 9. After passing through the sealing groove, the sealing gasket 601 will rebound to its original shape and block the sealing groove, so that the T-shaped sealing gasket 601 can cooperate with the sealing ring 9 to improve the sealing performance of the connection between the straight pipe 6 and the main pipe 101.

[0035] The working principle of the utility model is as follows: the main pipe 101, the first shunt pipe 102 and the second shunt pipe 103 are integrally formed by stamping, which can improve the sealing of the pipe body 1 and avoid the problem of welding seam cracking caused by welding leakage in the manual spot welding method, thereby improving the quality and service life of the pipe body 1. Before the pipe body 1 needs to be installed, the two opposing connecting sleeves 2 can be respectively sleeved on the first shunt pipe 102 and the second shunt pipe 103, and then the screw barrel 3 is rotated to move on the screw rod 4, and the position of the screw barrel 3 is adjusted so that the screw barrel 3 can just press the connecting sleeve 2, so as to support the first shunt pipe 102 and the second shunt pipe 103, and prevent the pipe body 1 from being loaded after long-term use. The first shunt pipe 102 and the second shunt pipe 103 are bent due to aging, thereby further improving the service life of the pipe body 1; and when the pipe body 1 and the refrigerant straight pipe 6 need to be installed and connected, the straight pipe 6 is first threadedly installed into the inside of the main pipe 101, so that the threaded column 7 is abutted against the end face of the main pipe 101, and then the 01 threaded sleeve 8 on the outer wall of the main pipe 1 is rotated to make the threaded sleeve 8 threadedly installed on the threaded column 7, so that the straight pipe 6 and the main pipe 101 can be installed and fixed from two directions, no matter in which direction the straight pipe 6 and the main pipe 101 are rotated due to shaking or other factors, it will only cause the straight pipe 6 and the main pipe 101 to become tighter and tighter, thereby improving the installation speed and stability of the pipe body 1.

[0036] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A branch pipe for a central air conditioner, comprising a pipe body (1), characterized in that: The pipe body (1) comprises a main pipe (101), a first shunt pipe (102) and a second shunt pipe (103); the first shunt pipe (102) and the second shunt pipe (103) are integrally formed and present a U-shaped structure; the main pipe (101) and the horizontal sections of the first shunt pipe (102) and the second shunt pipe (103) are integrally formed by stamping; and further comprises: A support assembly, comprising connecting sleeves (2) which are sleeved on the outer walls of a first shunt pipe (102) and a second shunt pipe (103) in pairs, a screw barrel (3) which is rotatably arranged on the side wall of the connecting sleeve (2), and a screw rod (4) which is threadedly connected between the two screw barrels (3).

2. A branch pipe for central air conditioning according to claim 1, characterized in that: Reinforcing ribs (5) are provided at the connection points between the first shunt pipe (102) and the second shunt pipe (103) and the main pipe (101).

3. A branch pipe for central air conditioning according to claim 1, characterized in that: The connecting sleeve (2) is made of rubber.

4. A branch pipe for central air conditioning according to claim 1, characterized in that: The outer wall of the tube body (1) is provided with a protective layer, the protective layer comprising a reinforced viscose composite layer, a glass fiber layer, a reinforced alloy layer and a stainless steel anti-rust layer, the glass fiber layer is located on the outer surface of the reinforced viscose composite layer, the reinforced alloy layer is located on the outer surface of the glass fiber layer, and the stainless steel anti-rust layer is located on the outer surface of the reinforced alloy layer.

5. A branch pipe installation structure for a central air conditioner according to any one of claims 1 to 4, characterized in that: It comprises a straight pipe (6) threadedly connected to the inside of a main pipe (101), a threaded column (7) arranged on the outer wall of the straight pipe (6), and a threaded sleeve (8) slidably arranged on the outer wall of the main pipe (101) and threadedly connected to the threaded column (7).

6. A branch pipe installation structure for a central air conditioner according to claim 5, characterized in that: A sealing gasket (601) is provided on the end surface of the straight pipe (6) close to the main pipe (101), a sealing ring (9) is provided on the inner wall of the main pipe (101), the sealing gasket (601) is in a T-shaped structure, and a sealing groove matching the sealing gasket (601) is provided on the surface of the sealing ring (9).

7. A branch pipe installation structure for a central air conditioner according to claim 5, characterized in that: A retaining ring (10) is provided on one end surface of the main pipe (101) close to the straight pipe (6).

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