High-leakproofness gas collecting pipe

Abstract

The utility model discloses a high-leakproofness gas collecting pipe, which relates to the technical field of gas collecting pipes of air conditioners, and comprises a main pipe, one end of the main pipe is communicated with a plurality of connecting rings, one end of each connecting ring is communicated with a branch pipe, and a sealing assembly is arranged between each branch pipe and the corresponding connecting ring; each sealing assembly comprises an expansion ring, one end of each expansion ring is fixedly connected with a sealing ring, one end of each branch pipe is provided with a connecting groove, the connecting grooves are matched with the expansion rings and the sealing rings, the connecting rings are distributed in the horizontal direction of the main pipe at equal intervals, and connecting assemblies are arranged in the connecting rings. The expansion ring can generate a certain elastic variable when the branch pipe and the main pipe expand with heat and contract with cold, the tightness of the joint of the main pipe and the branch pipe is kept through the elastic characteristic of the expansion ring, a gap caused by temperature change can be filled, liquid is effectively prevented from leaking from the joint, the sealing performance of a system is kept, and the service life of the system is prolonged. And normal operation of equipment is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning air collecting pipes, in particular to a highly airtight air collecting pipe. Background Art

[0002] The air collecting pipe of the air conditioner refers to a part of the piping system used to transport cold (or hot) liquids in the air conditioning system. In the refrigerant pipeline, the air collecting pipe assembly is often used to distribute the flow of the refrigerant. This air collecting pipe assembly is mostly connected to the inlet and outlet ends of the condenser and evaporator. Traditional air collecting pipe assemblies are all made of copper, which has high material costs. In order to reduce costs, the existing technology has a gas collecting pipe assembly made of a seamed stainless steel pipe as the main pipe of the air collecting pipe assembly, and then a copper branch pipe is welded on the main pipe.

[0003] The gas collecting pipe assembly with announcement number CN205481966U has a side branch pipe inserted into the sleeve of the side wall of the main pipe, and the pipe section of the side branch pipe located in the sleeve is a small section of the reduced pipe, thereby enhancing the welding reliability between the main pipe and the side branch pipe.

[0004] However, after long-term use, the pipe of this patent will be affected by temperature changes. Since the degree of thermal expansion and contraction of the stainless steel pipe and the copper branch pipe may be different, such a difference will cause a certain stress or displacement at the connection between the main pipe and the branch pipe, which will lead to reduced sealing and shorten the service life of the equipment. Utility Model Content

[0005] The utility model aims to provide a highly airtight gas collecting pipe to solve the problems raised in the prior art.

[0006] To achieve the above object, the utility model provides the following technical solutions: a highly airtight gas collecting pipe, comprising a main pipe, one end of which is connected to a plurality of connecting rings, one end of each of which is connected to a branch pipe, and a sealing assembly is provided between the branch pipe and the connecting ring;

[0007] There are multiple groups of sealing components, each group of sealing components includes an expansion ring, one end of the expansion ring is fixedly connected with a sealing ring, and one end of the branch pipe is provided with a connecting groove, which matches the expansion ring and the sealing ring.

[0008] As a preferred technical solution, a plurality of connecting rings are distributed at equal distances along the horizontal direction of the main pipe, and connecting components are provided inside the plurality of connecting rings.

[0009] As a preferred technical solution, multiple groups of connection components are provided, each group of connection components includes an L-shaped groove, the number of L-shaped grooves is set to multiple, the outer wall of the branch pipe is fixedly connected with multiple fixed blocks, and the multiple fixed blocks are respectively slidably connected to the corresponding L-shaped grooves. The L-shaped grooves and the fixed blocks make the installation and disassembly process of the branch pipe and the main pipe more portable.

[0010] As a preferred technical solution, each horizontal section of the L-shaped groove is fixedly connected with a stopper, and the cross-section of the multiple stoppers is semicircular. The stoppers limit the fixed blocks to prevent the fixed blocks from displacement.

[0011] As a preferred technical solution, each stopper is made of rubber material, and the stopper has a certain elastic deformation. When the fixed block is not subjected to external force, the fixed block can always be located on one side of the stopper.

[0012] As a preferred technical solution, the inner diameter of the connecting ring is half of the inner diameter of the main pipe.

[0013] As a preferred technical solution, both ends of the main pipe are fixedly connected with connecting plates, and a plurality of threaded holes are provided inside the two connecting plates.

[0014] As a preferred technical solution, fixing bolts are threadedly connected inside the threaded holes, and a placement groove is opened inside one of the connecting plates, and the fixing bolts can connect the two main pipes.

[0015] As a preferred technical solution, a sealing ring is fixedly connected to one end of the other connecting plate, and the sealing ring matches the placement groove. The sealing ring can fill the gap between the connecting plates and form a sealed environment to prevent liquid from leaking from the connection.

[0016] As a preferred technical solution, a plurality of L-shaped grooves are evenly arranged in a ring shape, and the positions of the plurality of expansion rings correspond to the plurality of L-shaped grooves.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The expansion ring of the utility model can produce a certain elastic variable when the branch pipe and the main pipe are subjected to thermal expansion and contraction. Through its elastic characteristics, the tightness of the connection between the main pipe and the branch pipe can be maintained, and the gap caused by temperature changes can be filled, which effectively prevents liquid leakage from the connection, maintains the sealing of the system, and avoids affecting the normal operation of the equipment.

[0019] 2. The L-shaped groove and fixing block of the utility model make the installation and removal process of the branch pipe and the main pipe more portable. When installing, it is only necessary to rotate the branch pipe to make the fixing block enter the L-shaped groove. When removing, it is only necessary to rotate the branch pipe in the opposite direction to transfer the fixing block from the horizontal section of the L-shaped groove to the vertical section and then remove it. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the connection structure between the expansion ring and the sealing ring of the utility model;

[0022] Figure 3This is a schematic diagram of the connection structure between the connecting ring and the branch pipe of the utility model;

[0023] Figure 4 This is a schematic diagram of the internal structure of the L-shaped groove of the utility model;

[0024] Figure 5 This is a schematic diagram of the main pipe connection structure of the utility model;

[0025] Figure 6 For the utility model Figure 4 A magnified view of the structure in the middle.

[0026] Numbers in the figure: 1. main pipe; 2. connecting ring; 3. branch pipe; 4. expansion ring; 5. sealing ring; 6. L-shaped groove; 7. connecting groove; 8. connecting plate; 9. fixing bolt; 10. sealing ring; 11. placement groove; 12. fixing block; 13. stopper. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] like Figure 1-Figure 6 As shown, the utility model provides the following technical solution: a highly airtight gas collecting pipe, comprising a main pipe 1, one end of the main pipe 1 is connected to a plurality of connecting rings 2, one end of the plurality of connecting rings 2 is connected to a branch pipe 3, and a sealing component is provided between the branch pipe 3 and the connecting ring 2;

[0029] There are multiple groups of sealing components, each group of sealing components includes an expansion ring 4, one end of the expansion ring 4 is fixedly connected to a sealing ring 5, and one end of the branch pipe 3 is provided with a connecting groove 7, which matches the expansion ring 4 and the sealing ring 5.

[0030] Wherein: the expansion ring 4 can produce a certain elastic variable when the branch pipe 3 and the main pipe 1 are subjected to thermal expansion and contraction, and maintain the tightness of the connection between the main pipe 1 and the branch pipe 3 through its elastic characteristics, and can fill the gap caused by temperature changes, effectively preventing liquid leakage from the connection, and maintaining the sealing of the system.

[0031] The expansion ring 4 is made of expandable graphite. When it is heated and expanded, it will make the connection between the main pipe 1 and the branch pipe 3 tighter. Even if the branch pipe 3 shrinks, the expansion ring 4 can maintain its compressed state and ensure the tightness of the connection between the main pipe 1 and the branch pipe 3.

[0032] like Figure 2 , Figure 4 and Figure 6 As shown, multiple connecting rings 2 are equidistantly distributed along the horizontal direction of the main pipe 1, and connecting components are provided inside the multiple connecting rings 2. The connecting components are provided in multiple groups, and each group of connecting components includes L-shaped grooves 6. The number of L-shaped grooves 6 is set to multiple, and the outer wall of the branch pipe 3 is fixedly connected with multiple fixing blocks 12. The multiple fixing blocks 12 are respectively slidably connected to the corresponding L-shaped grooves 6. The horizontal section of each L-shaped groove 6 is fixedly connected with a stopper 13. The cross-section of the multiple stoppers 13 is semicircular, and each stopper 13 is made of rubber material.

[0033] Among them: when the branch pipe 3 needs to be installed, the fixing block 12 of the branch pipe 3 is inserted into the vertical section of the L-shaped groove 6, and then the branch pipe 3 is rotated to rotate the fixing block 12 on the branch pipe 3 to the horizontal section of the L-shaped groove 6. When rotating, the stopper 13 will be subjected to pressure and elastic deformation will occur. When the fixing block 12 moves to one side of the stopper 13, the stopper 13 is restored to limit the fixing block 12 to prevent the fixing block 12 from being displaced. When disassembly is required, the branch pipe 3 is rotated in the opposite direction to transfer the fixing block 12 from the horizontal section of the L-shaped groove 6 to the vertical section and then removed, making the installation and disassembly process more convenient and efficient.

[0034] like Figure 4 and Figure 5 As shown, the inner diameter of the connecting ring 2 is half of the inner diameter of the main pipe 1, and connecting plates 8 are fixedly connected at both ends of the main pipe 1. Multiple threaded holes are opened inside the two connecting plates 8, and fixing bolts 9 are threadedly connected inside the threaded holes. A placement groove 11 is opened inside one of the connecting plates 8, and a sealing ring 10 is fixedly connected to one end of the other connecting plate 8, and the sealing ring 10 matches the placement groove 11. Multiple L-shaped grooves 6 are evenly arranged in a ring shape, and the positions of the multiple expansion rings 4 correspond to the multiple L-shaped grooves 6.

[0035] Wherein: when two main pipes 1 need to be installed, align the two connecting plates 8 so that the sealing ring 10 enters the placement groove 11. When the sealing ring 10 is correctly placed in the placement groove 11, it will fill the gap between the connecting plates 8 and form a sealed environment to prevent liquid from leaking from the connection. Then align the threaded holes of the connecting plates 8 and screw the fixing bolts 9 into the threaded holes to achieve the connection of the two main pipes 1.

[0036] Working principle: When in use, insert the branch pipe 3 into the vertical section of the fixed block 12 of the branch pipe 3 into the L-shaped groove 6, and then rotate the branch pipe 3 to rotate the fixed block 12 on the branch pipe 3 to the horizontal section of the L-shaped groove 6. When rotating, the stopper 13 will be subjected to pressure and elastically deform. When the fixed block 12 moves to one side of the stopper 13, the stopper 13 recovers and limits the fixed block 12 to prevent the fixed block 12 from moving. At this time, the connecting groove 7 of the branch pipe 3 is in contact with the expansion ring 4 and the sealing ring 5. The expansion ring 4 will fill the gap caused by temperature changes, effectively preventing liquid leakage from the connection and maintaining the sealing of the system.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A highly airtight gas collecting pipe, characterized in that: include: A main pipe (1), one end of the main pipe (1) being connected to a plurality of connecting rings (2), one end of each of the plurality of connecting rings (2) being connected to a branch pipe (3), and a sealing assembly being provided between the branch pipe (3) and the connecting ring (2); The sealing components are provided in a plurality of groups, each group of the sealing components comprising an expansion ring (4), one end of the expansion ring (4) being fixedly connected to a sealing ring (5), and one end of the branch pipe (3) being provided with a connecting groove (7), the connecting groove (7) matching the expansion ring (4) and the sealing ring (5).

2. A highly airtight gas collecting pipe according to claim 1, characterized in that: The plurality of connecting rings (2) are distributed at equal distances in the horizontal direction of the main pipe (1), and connecting components are provided inside the plurality of connecting rings (2).

3. A highly airtight gas collecting pipe according to claim 2, characterized in that: The connection components are provided in a plurality of groups, each group of the connection components comprises an L-shaped groove (6), the number of the L-shaped grooves (6) is set to be plural, the outer wall of the branch pipe (3) is fixedly connected with a plurality of fixing blocks (12), and the plurality of fixing blocks (12) are respectively slidably connected to corresponding L-shaped grooves (6).

4. A highly airtight gas collecting pipe according to claim 3, characterized in that: A stopper (13) is fixedly connected to the horizontal section of each L-shaped groove (6); the cross sections of the plurality of stoppers (13) are semicircular.

5. The highly airtight gas collecting pipe according to claim 4, characterized in that: Each of the stoppers (13) is made of rubber material.

6. The highly airtight gas collecting pipe according to claim 1, characterized in that: The inner diameter of the connecting ring (2) is half the inner diameter of the main pipe (1).

7. The highly airtight gas collecting pipe according to claim 1, characterized in that: Both ends of the main pipe (1) are fixedly connected to connecting plates (8), and a plurality of threaded holes are provided inside the two connecting plates (8).

8. The highly airtight gas collecting pipe according to claim 7, characterized in that: The threaded holes are all threadedly connected with fixing bolts (9), and a placement groove (11) is provided inside one of the connecting plates (8).

9. The highly airtight gas collecting pipe according to claim 7, characterized in that: A sealing ring (10) is fixedly connected to one end of the other connecting plate (8), and the sealing ring (10) matches the placement groove (11).

10. The highly airtight gas collecting pipe according to claim 3, characterized in that: The plurality of L-shaped grooves (6) are evenly arranged in a ring shape, and the positions of the plurality of expansion rings (4) correspond to the plurality of L-shaped grooves (6).

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