High-pressure-resistant three-way connector

Abstract

The utility model relates to the technical field of three-way connectors, in particular to a high-pressure-resistant three-way connector which comprises a U-shaped pipe and bifurcated pipes, the U-shaped pipe and the bifurcated pipes are communicated with each other, annular protrusions are arranged on the outer walls of the two ends of the U-shaped pipe, and connecting assemblies are installed at the ends, away from the U-shaped pipe, of the bifurcated pipes. The connecting assembly comprises an external expansion pipe connected with the bifurcated pipe into an integrated structure, the end, away from the bifurcated pipe, of the external expansion pipe is connected with at least two elastic pieces, the middle of each elastic piece is provided with an arc-shaped protrusion, the tail end of the U-shaped pipe is used for being externally connected with a pipeline with the end provided with the connecting assembly, and the tail end of the bifurcated pipe is used for being externally connected with a pipeline with the end provided with an annular protrusion. According to the anti-falling device, fluid can be distributed to different directions, when the anti-falling device is installed, the annular protrusion opens the elastic piece until the annular protrusion and the arc-shaped protrusion are aligned and clamped, operation is convenient and fast, the anti-falling effect is good, disassembly and assembly are convenient, and the rubber sealing ring is hooped and sleeved on the outer side of a pipeline or a U-shaped pipe, so that the anti-leakage effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of three-way joints, and particularly relates to a three-way joint with high-pressure resistance. Background Art

[0002] In an air-conditioning refrigeration system, a three-way joint plays an important role. It allows refrigerant to be distributed and circulated between different pipelines. The material selection of the three-way joint should be based on its application environment and the requirements of the pipeline system. Common materials include stainless steel, copper, PVC, HDPE, PP, PPR, aluminum, and plastics, etc. When installing a three-way joint, it is necessary to ensure that its position, direction, and connection method meet the design requirements. For example, the installation position and direction of the valve should meet the design requirements. After installation, quality inspection should be carried out on the three-way joint, including checking its installation position, connection quality, and sealing performance;

[0003] Chinese Patent Publication No. CN215060369U discloses a three-way joint for an air-conditioning system. It is provided with a first communication part, and a second communication part with one end communicating with the first communication part. Both ends of the first communication part are provided with first communication ports. Accommodating units for accommodating nylon pipes are provided at both ends of the first communication part and at the end parts of the second communication part; by providing the first communication part and the second communication part, and respectively providing two first communication ports and second communication ports at the end parts of the first communication part and the second communication part, it is convenient to connect three pipelines. When connecting the pipelines in the air-conditioning system, the nylon pipes of the air-conditioning system can be placed and fixed in the accommodating units, and then the nylon pipes are respectively communicated with the first communication ports and the second communication ports through welding, so that the connection between the first communication part and the second communication part and the pipelines is tighter, and the sealing performance of the joint is better;

[0004] The above-mentioned technology makes the sealing performance of the joint better by placing and welding the nylon pipes of the air-conditioning system into the accommodating units. However, the operation method of welding and fixing is cumbersome and not convenient for disassembly and maintenance. Therefore, the utility model provides a three-way joint with high-pressure resistance to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a three-way joint with high-pressure resistance, and solve the technical problem that the traditional three-way joint makes the sealing performance of the joint better by placing and welding the nylon pipes of the air-conditioning system into the accommodating units. However, the operation method of welding and fixing is cumbersome and not convenient for disassembly and maintenance.

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

[0007] A high-pressure resistant three-way joint comprises a U-shaped tube and a bifurcated tube, wherein the U-shaped tube and the bifurcated tube are arranged to be interconnected, annular protrusions are arranged on the outer walls of both ends of the U-shaped tube, and a connecting component is installed on the end of the bifurcated tube away from the U-shaped tube, wherein the connecting component comprises an outer expansion tube connected to the bifurcated tube as an integral structure, and at least two spring pieces are connected to the end of the outer expansion tube away from the bifurcated tube, and an arc-shaped protrusion is arranged in the middle of each spring piece.

[0008] Beneficial effects: The high-pressure resistant three-way joint, the U-shaped tube end is used for connecting a pipe with a connecting component at the external end, and the forked tube end is used for connecting a pipe with an annular protrusion at the external end, which can divert the fluid to different directions. During installation, the annular protrusion opens the spring sheet until the annular protrusion is aligned with the arc-shaped protrusion and snaps in. The operation is convenient and quick, the anti-slip effect is good, and the disassembly and assembly are convenient. The rubber sealing ring is sleeved on the outside of the pipe or the U-shaped tube to prevent leakage and provide a better sealing effect under high pressure.

[0009] Furthermore, the outer diameter of the U-shaped tube is consistent with the inner diameter of the externally expanded tube, and the arc-shaped protrusion corresponds to the annular protrusion.

[0010] Furthermore, a limiting convex ring is provided on the peripheral wall of one end of the outward expansion tube close to the bifurcated tube, and a rubber sealing ring is interference-embedded in the limiting convex ring.

[0011] Furthermore, the outer expansion tube and the spring sheet are integrally formed, and cutting seams are formed between adjacent spring sheets.

[0012] Furthermore, chamfered slopes are provided on the peripheries of both end surfaces of the U-shaped tube.

[0013] Furthermore, the U-shaped tube and the bifurcated tube are made of 316 stainless steel or phosphorus deoxidized copper material. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional structural diagram of a high-pressure resistant three-way joint of the utility model;

[0015] Figure 2 It is a partial cross-sectional view of a high-pressure resistant three-way joint of the utility model;

[0016] Figure 3 It is a cross-sectional view of a bifurcated pipe externally connected to a pipeline in a high-pressure resistant three-way joint of the utility model;

[0017] Figure 4 The utility model is a three-way connector with high pressure resistance Figure 1 A magnified view of the structure in Figure 2.

[0018] Reference numerals: 1, U-shaped tube; 2, bifurcated tube; 3, annular protrusion; 4, connection assembly; 41, outwardly expanding tube; 42, elastic piece; 43, arc-shaped protrusion; 44, limiting convex ring; 45, rubber sealing ring. Detailed implementation mode

[0019] The following is only the preferred implementation mode of the present invention, and the protection scope is not limited to this embodiment. Any technical solution within the idea of the present invention shall fall within the protection scope of the present invention. At the same time, it should be pointed out that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

[0020] See Figures 1 to 4 As shown, a three-way joint resistant to high pressure includes a U-shaped tube 1 and a bifurcated tube 2. The U-shaped tube 1 and the bifurcated tube 2 are connected and communicated with each other. The U-shaped tube 1 and the bifurcated tube 2 are made of 316 stainless steel or phosphorus-deoxidized copper material.

[0021] Specifically, 316 stainless steel is an austenitic stainless steel with good corrosion resistance and high-temperature resistance. Phosphorus-deoxidized copper is a copper alloy containing a small amount of phosphorus. Phosphorus is used as a deoxidizer, which can improve the strength and hardness of copper while maintaining the excellent electrical conductivity and thermal conductivity of copper. Both materials have good mechanical properties and corrosion resistance, and are suitable for manufacturing three-way joints that need to withstand high-pressure and high-temperature environments.

[0022] Furthermore, annular protrusions 3 are provided on the outer walls of both ends of the U-shaped tube 1. Connection assemblies 4 are installed at the ends of the bifurcated tubes 2 far from the U-shaped tube 1. The connection assembly 4 includes an outwardly expanding tube 41 integrally connected to the bifurcated tube 2. At least two elastic pieces 42 are connected to the end of the outwardly expanding tube 41 far from the bifurcated tube 2. Arc-shaped protrusions 43 are provided in the middle of the elastic pieces 42.

[0023] Specifically, the end of the U-shaped tube 1 is used to externally connect a pipe with a connection assembly 4 at the end, and the end of the bifurcated tube 2 is used to externally connect a pipe with an annular protrusion 3 at the end, so that the fluid can be diverted in different directions.

[0024] Furthermore, the outwardly expanding tube 41 and the elastic pieces 42 are integrally formed, and a cutting seam is provided between adjacent elastic pieces 42.

[0025] Specifically, the outwardly expanding tube 41 and the elastic pieces 42 are formed in the same manufacturing process, rather than being separately manufactured and then assembled, which can improve production efficiency, reduce assembly costs, and can improve the strength and reliability of the overall structure. During the assembly process, the cutting seam allows the elastic pieces 42 to open under the action of the expansion of the annular protrusion 3, so that the U-shaped tube 1 or the pipe with an annular protrusion 3 can be more easily inserted or connected.

[0026] Furthermore, the outer diameter of the U-shaped tube 1 is the same as the inner diameter of the outwardly expanding tube 41, and the arc-shaped protrusion 43 corresponds to the annular protrusion 3;

[0027] Specifically, the outer diameter of the U-shaped tube 1 is precisely matched with the inner diameter of the outwardly expanding tube 41. This design allows the U-shaped tube 1 to be closely inserted into the outwardly expanding tube 41, thereby achieving a firm connection. When the U-shaped tube 1 is inserted into the outwardly expanding tube 41, the annular protrusion 3 will align with and snap into the arc-shaped protrusion 43 to form a tight fit, preventing the two from separating.

[0028] Furthermore, chamfered slopes are provided on the peripheries of both end faces of the U-shaped tube 1;

[0029] Specifically, the chamfered slopes are beneficial for inserting the U-shaped tube 1 into the outwardly expanding tube 41 and can assist in achieving the alignment and insertion action. It should be noted that the pipe port with the annular protrusion 3 also has chamfered slopes, which facilitates the assembly of the pipe and the connecting component 4.

[0030] Furthermore, a limiting convex ring 44 is provided on the peripheral wall of one end of the outwardly expanding tube 41 close to the bifurcated tube 2, and a rubber sealing ring 45 is press-fitted in the limiting convex ring 44;

[0031] Specifically, the rubber sealing ring 45 is embedded in the limiting convex ring 44 under a certain pressure, that is, the size of the rubber sealing ring 45 is slightly larger than the inner diameter of the limiting convex ring 44. In this way, the rubber sealing ring 45 will be compressed to a certain extent in the limiting convex ring 44, so as to be better fixed in place and provide a sealing effect. The rubber sealing ring 45 has good elasticity and sealing performance, and can provide sufficient binding force to the U-shaped tube 1 or the pipe with the annular protrusion 3 to ensure fitting and prevent leakage.

[0032] 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 three-way joint resistant to high pressure, comprising a U-shaped pipe (1) and a bifurcated pipe (2), wherein the U-shaped pipe (1) and the bifurcated pipe (2) are communicatively connected to each other, and is characterized in that, Both outer walls of the two ends of the U-shaped tube (1) are provided with annular protrusions (3), and connection components (4) are installed at the ends of the bifurcated tubes (2) far away from the U-shaped tube (1). Among them, the connection component (4) includes an outwardly expanding tube (41) integrally connected to the bifurcated tube (2). At least two elastic pieces (42) are connected to the end of the outwardly expanding tube (41) far away from the bifurcated tube (2), and arc-shaped protrusions (43) are provided in the middle of the elastic pieces (42).

2. The tee joint with high-pressure resistance according to claim 1, characterized in that: The outer diameter of the U-shaped tube (1) is the same as the inner diameter of the outwardly expanding tube (41), and the arc-shaped protrusion (43) corresponds to the annular protrusion (3).

3. The tee joint with high-pressure resistance according to claim 1, characterized in that: A limiting convex ring (44) is provided on the peripheral wall of the outwardly expanding tube (41) near the bifurcated tube (2), and a rubber sealing ring (45) is press-fitted in the limiting convex ring (44).

4. The tee joint with high pressure resistance according to claim 1, characterized in that: The outwardly expanding tube (41) and the elastic piece (42) are integrally formed, and a cutting seam is provided between adjacent elastic pieces (42).

5. The three-way joint with high-pressure resistance according to claim 1, characterized in that: Chamfered slopes are provided on the peripheries of the two end faces of the U-shaped tube (1).

6. The three-way joint with high-pressure resistance according to claim 1, characterized in that: The U-shaped tube (1) and the bifurcated tube (2) are made of 316 stainless steel or phosphorus-deoxidized copper material.

Images