Clamping and pressing type anti-leakage branch pipe

Abstract

The utility model relates to the technical field of branch pipes, in particular to a clamping and pressing type leakage-proof branch pipe which comprises a branch main pipe, a branch straight pipe, a branch bent pipe and a Y-pipe. The branch main pipe, the branch straight pipe and the branch bent pipe are welded to three connectors of the Y-pipe respectively. The variable-diameter pipes are fixed to the ends, away from the Y-pipe, of the branch straight pipe and the branch bent pipe, the variable-diameter pipes effectively control the flow speed and pressure of fluid and reduce impact of the fluid on the pipeline, so that noise and vibration are reduced, and when pipelines with different pipe diameters are connected, a flexible solution can be provided; the peripheries of the medium-diameter pipe and the narrow-diameter pipe are sleeved with the rubber sealing rings in a limiting mode, the rubber sealing rings guarantee the sealing performance of the connecting positions, good leakage-proof performance can be kept, through the matched design of the inner protruding points of the reducer pipes and the outer protruding points of the pipes to be connected, the stability of pipeline connection can be guaranteed, field welding is not needed, the installation time is shortened, the labor intensity is reduced, and the production efficiency is improved. And the installation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of manifolds, in particular to a crimping type leak-proof manifold. Background Art

[0002] The central air-conditioning manifold is a pipe with one input end and multiple output ends, which is mainly used in the pipeline installation of the central air-conditioning VRV system. Its function is to divide the refrigerant in the pipeline into the indoor units in the multi-connected central air-conditioning installation system, playing a role of flow division. The manifold is made of high-quality purple copper pipes. For the common refrigerators and various refrigeration appliances we see, copper pipes are required for connection to achieve the refrigeration effect. Therefore, the installation of the central air-conditioning fluorine machine also uses the connection of copper pipes to achieve this refrigeration effect. The manifold is used to connect these copper pipes and each indoor unit. It can be seen that the manifold is very important for the installation and operation of the central air-conditioning. Its function simply means connecting with the copper pipes to connect each indoor unit, enabling the refrigerant to flow in the copper pipes, achieving the refrigeration and heat exchange effects;

[0003] Chinese Patent Publication No. CN207351005U discloses a crimping type manifold. An integrated annular protrusion is provided on the inlet section of the main manifold, the straight manifold, and the outlet section of the bent manifold. This structure integrates the crimping type pipe fittings onto the manifold. During installation, welding is not required, and it can be mechanically sealed and sleeved in, reducing the workload of operators and the number of crimping type pipe fittings. Most importantly, it solves the technical problems that when connecting with external insertion pipes through welding, oxides will be incorporated at the welding joints, and there are easily sand holes, welding detachment, and leakage after oxidation corrosion;

[0004] The above technology simply integrates the crimping type pipe fittings onto the manifold, which is difficult to meet the connection requirements of pipes with different diameters in the pipeline system, and the interface structure is prone to looseness, which is not conducive to maintaining the sealing performance. Therefore, the utility model discloses a crimping type leak-proof manifold to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a crimping type leak-proof manifold, which solves the technical problems that the traditional manifold simply integrates the crimping type pipe fittings onto the manifold, is difficult to meet the connection requirements of pipes with different diameters in the pipeline system, and the interface structure is prone to looseness, which is not conducive to maintaining the sealing performance.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions:

[0007] A clamping type leak-proof manifold, comprising a main manifold, straight branch pipes, bent branch pipes and a tee pipe. The three interfaces of the tee pipe are respectively welded with the main manifold, straight branch pipes and bent branch pipes. Variable diameter pipes are fixed at the ends of the straight branch pipes and bent branch pipes away from the tee pipe, and customized interface sleeves are fixed at the ends of the main manifold away from the tee pipe.

[0008] Among them, the variable diameter pipe is composed of a thick diameter pipe, a medium diameter pipe and a narrow diameter pipe which are fixedly connected in sequence. A first variable diameter part is connected between the thick diameter pipe and the medium diameter pipe, and a second variable diameter part is connected between the medium diameter pipe and the narrow diameter pipe.

[0009] Beneficial effects: For this clamping type leak-proof manifold, the variable diameter pipe effectively controls the flow rate and pressure of the fluid, reduces the impact of the fluid on the pipeline, thereby reducing noise and vibration. When connecting pipelines with different pipe diameters, it can also provide a flexible solution. Rubber sealing rings are sleeved on the peripheries of the medium diameter pipe and the narrow diameter pipe. The rubber sealing rings ensure the sealing performance at the connection, can maintain good leak-proof performance, and the matching design of the inner convex points of the variable diameter pipe and the outer convex points of the pipe to be connected can ensure the stability of the pipeline connection. There is no need for on-site welding, which reduces the installation time and labor intensity and improves the installation efficiency.

[0010] Further, concave rings are arranged on the outer sides of the medium diameter pipe and the narrow diameter pipe, and rubber sealing rings are sleeved on the outer sides of the concave rings.

[0011] Further, inner convex points are symmetrically arranged on both sides of the medium diameter pipe and the narrow diameter pipe.

[0012] Further, an annular slope is arranged at the end of the narrow diameter pipe away from the medium diameter pipe.

[0013] Further, outer convex points are symmetrically arranged on both sides of the customized interface sleeve. Description of the Drawings

[0014] Figure 1 is a perspective view of a clamping type leak-proof manifold of the present utility model;

[0015] Figure 2 is a cross-sectional view of the variable diameter pipe in a clamping type leak-proof manifold of the present utility model;

[0016] Figure 3 is a cross-sectional view of the customized interface sleeve in a clamping type leak-proof manifold of the present utility model;

[0017] Figure 4 is an enlarged view of the structure at A in a clamping type leak-proof manifold of the present utility model; Figure 1 in;

[0018] Figure 5 is a clamping type leak-proof manifold of the present utility model;Figure 1 Enlarged view of the structure at position B in

[0019] Reference numerals: 1, main branch pipe; 2, straight branch pipe; 3, bent branch pipe; 4, three-way pipe; 5, reducing pipe; 51, thick-diameter pipe; 52, medium-diameter pipe; 53, narrow-diameter pipe; 54, first reducing part; 55, second reducing part; 56, concave ring; 57, rubber sealing ring; 58, inner convex point; 59, annular slope; 6, customized interface sleeve; 61, outer convex point. Detailed implementation manners

[0020] The following is only the preferred implementation manner of the present utility model, and the protection scope is not limited to this embodiment. All technical solutions falling within the concept of the present utility model shall belong to the protection scope of the present utility model. At the same time, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications should also be regarded as the protection scope of the present utility model.

[0021] See Figures 1 to 5 As shown, a crimping type leak-proof branch pipe includes a main branch pipe 1, a straight branch pipe 2, a bent branch pipe 3 and a three-way pipe 4. The three interfaces of the three-way pipe 4 are respectively welded with the main branch pipe 1, the straight branch pipe 2 and the bent branch pipe 3;

[0022] Specifically, the three-way pipe 4 allows the fluid to be split in three different directions and is applicable to central air-conditioning systems or other occasions where multi-way fluid distribution is required.

[0023] Furthermore, customized interface sleeves 6 are fixed at the ends of the main branch pipe 1 far from the three-way pipe 4, and outer convex points 61 are symmetrically arranged on both sides of the customized interface sleeve 6;

[0024] Specifically, the outer convex point 61 is a raised part formed by extruding the inner wall of the main branch pipe 1 outward, and the inner convex point 58 of the external pipeline can be embedded into the outer convex point 61 to increase the anti-pulling resistance and improve the stability.

[0025] Furthermore, reducing pipes 5 are fixed at the ends of the straight branch pipe 2 and the bent branch pipe 3 far from the three-way pipe 4. The reducing pipe 5 is composed of a thick-diameter pipe 51, a medium-diameter pipe 52 and a narrow-diameter pipe 53 which are fixedly connected in sequence. A first reducing part 54 is connected between the thick-diameter pipe 51 and the medium-diameter pipe 52, and a second reducing part 55 is connected between the medium-diameter pipe 52 and the narrow-diameter pipe 53;

[0026] Specifically, when the fluid passes through the reducer pipe 5, due to the change in flow velocity, the impact on the pipeline can be reduced, thereby reducing noise and vibration, improving the operating stability of the system. Moreover, different devices or components may require pipelines with different diameters for connection. The design of the reducer pipe 5 can well adapt to this requirement, enabling the pipeline system to flexibly connect pipelines with different diameters. And since the reducer pipe 5 has already integrated pipeline parts with different diameters, there is no need for on-site pipeline cutting or welding during installation. Just connect the reducer pipe 5 to other pipelines, which can greatly reduce the installation time and labor intensity.

[0027] Further, recessed rings 56 are provided on the outer sides of the medium-diameter pipe 52 and the narrow-diameter pipe 53, and rubber sealing rings 57 are sleeved on the outer sides of the recessed rings 56;

[0028] Specifically, the recessed rings 56 enable the rubber sealing rings 57 to be conveniently installed on the medium-diameter pipe 52 and the narrow-diameter pipe 53. The rubber material has good elasticity and sealing performance, which can effectively prevent fluid leakage. In central air-conditioning and refrigeration systems, it can ensure the safe and efficient transmission of refrigerants or other fluids.

[0029] Further, inner convex points 58 are symmetrically provided on both sides of the medium-diameter pipe 52 and the narrow-diameter pipe 53;

[0030] Specifically, when the end of the narrow-diameter pipe 53 is inserted into the port of the external pipeline, the inner convex points 58 of the narrow-diameter pipe 53 can be adapted to the outer convex points 61 of the external pipeline, which can improve the anti-pulling resistance and stability.

[0031] Further, an annular slope 59 is provided at one end of the narrow-diameter pipe 53 away from the medium-diameter pipe 52;

[0032] Specifically, the annular slope 59 can make the pipeline connection smoother. In a narrow space, the slope design can reduce the resistance during connection, making it easier for the pipelines to be aligned and inserted.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A clamping type leak-proof manifold, comprising a main manifold (1), straight branch pipes (2), bent branch pipes (3) and a tee pipe (4). Three interfaces of the tee pipe (4) are respectively welded with the main manifold (1), the straight branch pipes (2) and the bent branch pipes (3), and it is characterized in that One end of the diverging straight pipe (2) and the diverging elbow pipe (3) far from the three-way pipe (4) is fixedly provided with a reducing pipe (5), and one end of the diverging main pipe (1) far from the three-way pipe (4) is fixedly provided with a customized interface sleeve (6); Wherein, the reducing pipe (5) is composed of a thick-diameter pipe (51), a medium-diameter pipe (52) and a narrow-diameter pipe (53) which are fixedly connected in sequence. A first reducing part (54) is connected between the thick-diameter pipe (51) and the medium-diameter pipe (52), and a second reducing part (55) is connected between the medium-diameter pipe (52) and the narrow-diameter pipe (53).

2. The crimping type leak-proof manifold according to claim 1, wherein: Depression rings (56) are arranged on the outer sides of the medium-diameter pipe (52) and the narrow-diameter pipe (53), and rubber sealing rings (57) are sleeved on the outer sides of the depression rings (56).

3. A pressing type leak-proof manifold according to claim 1, characterized in that: Inner convex points (58) are symmetrically arranged on both sides of the medium-diameter pipe (52) and the narrow-diameter pipe (53).

4. A clamping type leak-proof manifold according to claim 1, characterized in that: An annular slope (59) is arranged at one end of the narrow-diameter pipe (53) far from the medium-diameter pipe (52).

5. A clamping type leak-proof manifold according to claim 1, wherein: Outer convex points (61) are symmetrically arranged on both sides of the customized interface sleeve (6).

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