High flow low resistance copper adapter for valve

Abstract

The application belongs to the technical field of valves and discloses a high-flow and low-resistance copper connecting pipe for valves, which comprises a first copper pipe, one end of the first copper pipe is provided with a second copper pipe arranged concentrically, two first arc-shaped grooves are formed in the second copper pipe and arranged symmetrically, a first abutting block is arranged on the inner wall between the two first arc-shaped grooves of the second copper pipe, the first abutting block is in interference fit with the connecting end of the valve, an arc-shaped groove is formed in the end of the first copper pipe away from the second copper pipe, and a sealing assembly is arranged in the second copper pipe. The welding rod is arranged in the first arc-shaped groove to perform welding operation. Then, the end of the second copper pipe is circularly welded and reinforced with the connecting end of the valve. The connecting end of the second copper pipe and the valve form two welding connections and one sealing structure, and compared with a single welding structure, the reliability of the connection and the sealing performance are improved.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to high-flow-rate, low-resistance copper fittings for valves. Background Technology

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and regulate and control the parameters (temperature, pressure, and flow rate) of the transported medium. Based on their function, they can be classified into shut-off valves, check valves, regulating valves, etc. Valves are control components in fluid transport systems, possessing functions such as shut-off, regulation, flow diversion, backflow prevention, pressure stabilization, flow splitting, or pressure relief. Valves used in fluid control systems range from the simplest shut-off valves to the various valves used in extremely complex automated control systems, with a wide variety of types and specifications. Valves can be used to control the flow of various types of fluids, including air, water, steam, various corrosive media, slurry, oil, liquid metals, and radioactive media.

[0003] Valves are typically connected to pipelines via connecting pipes during operation. However, when using welded connections, the conventional practice is to simply weld the end of the connecting pipe to the valve connection point in a circumferential manner. This traditional welding method results in only one welded joint between the connecting pipe and the valve. When welding defects such as porosity, slag inclusions, or incomplete penetration occur in the welded area, the sealing performance of the connection structure is affected, leading to a decrease in connection reliability. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a high-flow, low-resistance copper fitting for valves.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a high-flow-rate, low-resistance copper pipe for valves, comprising a first copper pipe, a second copper pipe concentrically arranged at one end of the first copper pipe, two symmetrically arranged first arc-shaped grooves on the second copper pipe, a first abutting block on the inner wall of the second copper pipe between the two first arc-shaped grooves, the first abutting block being interference-fitted with the connection end of the valve, an arc groove being provided at the end of the first copper pipe away from the second copper pipe, and a sealing component being provided inside the second copper pipe.

[0006] By adopting the above technical solution, a first copper tube, a second copper tube, a first arc-shaped groove, a first contact block, and an arc-shaped groove are set up. The second copper tube is sleeved onto the valve's connection end, and then a welding rod is placed in the first arc-shaped groove to perform welding operations. The first contact block and the valve connection end form a tightly fitting contact area. The welding area and the contact area together constitute a complete annular sealing band, thereby achieving a reliable connection and seal between the second copper tube and the valve connection end. Subsequently, circumferential welding is performed to reinforce the connection end of the second copper tube and the valve. The sealing component plays a sealing role between the second copper tube and the first copper tube. The connection end of the second copper tube and the valve forms two welded connections and one sealing structure, which improves the reliability of the connection and the sealing performance compared to a single welded structure.

[0007] Furthermore, the inner diameter of the second copper tube is the same as the outer diameter of the first copper tube.

[0008] Furthermore, the rotation axis of the arc-shaped groove wall of the arc groove intersects perpendicularly with the center line of the first copper tube.

[0009] Furthermore, a marking annular groove is provided on the outer wall of the second copper tube on the side away from the first copper tube.

[0010] By adopting the above technical solution, a marking annular groove is provided on the outer wall of the second copper tube away from the first copper tube. The marking annular groove marks the welding area to ensure the firmness of the weld.

[0011] Furthermore, the sealing assembly includes a retaining ring disposed on the inner wall of the second copper tube, and a first sealing ring disposed on the side of the retaining ring away from the first copper tube.

[0012] By adopting the above technical solution, when the second copper tube is sleeved on the valve connection end, the first sealing ring contacts the end of the valve connection end to form a sealing structure.

[0013] Furthermore, the second copper tube has an installation annular groove on its inner wall between the first arc-shaped groove and the first sealing ring, and a second sealing ring is provided in the installation annular groove.

[0014] By adopting the above technical solution, an annular groove and a second sealing ring are installed, and the second sealing ring contacts the outer wall of the valve connection end, thereby further improving the sealing effect.

[0015] Furthermore, two symmetrically arranged second arc-shaped grooves are provided on the second copper tube, and a second abutment block is provided on the inner wall of the second copper tube between the two second arc-shaped grooves. The second abutment block is interference-fitted with the connection end of the valve.

[0016] By adopting the above technical solution, a second arc-shaped groove and a second contact block are set up. The welding rod is placed in the second arc-shaped groove for welding, and the second contact block is matched with the connection end of the valve. This makes the welding area and the matching area between the second contact block and the valve's connection end form an annular area to connect and seal the second copper pipe to the valve, further improving the connection and sealing effect.

[0017] Furthermore, the first arc-shaped groove and the second arc-shaped groove are arranged alternately.

[0018] Furthermore, an arc-shaped plate is provided at the end of the first copper tube away from the second copper tube, and the arc surface of the arc plate coincides with the rotation axis of the arc-shaped groove wall.

[0019] Furthermore, a through hole is provided in the middle of the arc-shaped plate, and the through hole is connected to the first copper tube.

[0020] In summary, this utility model has the following beneficial effects:

[0021] 1. In this application, a first copper pipe, a second copper pipe, a first arc-shaped groove, a first contact block, and an arc-shaped groove are provided. The second copper pipe is sleeved onto the connection end of the valve, and then a welding rod is placed in the first arc-shaped groove to perform welding operations. The first contact block and the valve connection end form a tightly fitting contact area. The welding area and the contact area together constitute a complete annular sealing band, thereby achieving a reliable connection and seal between the second copper pipe and the valve connection end. Subsequently, circumferential welding is performed to reinforce the connection end of the second copper pipe and the valve connection end. The sealing component plays a sealing role between the second copper pipe and the first copper pipe. The connection end of the second copper pipe and the valve forms two welded connections and one sealing structure, which improves the reliability of the connection and the sealing performance compared to a single welded structure.

[0022] 2. In this application, a second arc-shaped groove and a second contact block are provided. The welding rod is placed in the second arc-shaped groove for welding, and the second contact block cooperates with the connection end of the valve, so that the welding area and the cooperation area between the second contact block and the valve connection end form an annular area to connect and seal the second copper pipe to the valve, thereby further improving the connection and sealing effect. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of the first copper tube and the second copper tube in an embodiment of this utility model;

[0025] Figure 3 This is a schematic diagram of the overall structure from another perspective of an embodiment of this utility model.

[0026] In the figure: 10, first copper tube; 11, arc groove; 20, second copper tube; 21, first arc groove; 22, first abutting block; 23, marking annular groove; 24, second arc groove; 25, second abutting block; 26, arc plate; 30, sealing assembly; 31, fixing ring; 32, first sealing ring; 33, mounting annular groove; 34, second sealing ring. Detailed Implementation

[0027] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0028] like Figure 1-3 As shown in the embodiment of this application, a high-flow-rate, low-resistance copper pipe for valves includes a first copper pipe 10 and a second copper pipe 20. The second copper pipe 20 is disposed at one end of the first copper pipe 10 and is arranged concentrically. Two symmetrically arranged first arc-shaped grooves 21 are formed on the second copper pipe 20. A first abutment block 22 is provided on the inner wall of the second copper pipe 20 between the two first arc-shaped grooves 21. The first abutment block 22 is interference-fitted with the connection end of the valve. The second copper pipe 20 is sleeved onto the connection end of the valve, and then a welding rod is placed in the first arc-shaped groove 21 to perform welding operations. The first abutment block 22 and the valve connection end form a tightly fitted abutment fit area. The welding area and the abutment fit area together constitute a complete annular sealing band, thereby achieving a reliable connection and seal between the second copper pipe 20 and the connection end of the valve. Subsequently, the end of the second copper pipe 20 and the connection end of the valve are reinforced by circumferential welding. A sealing component 30 is provided inside the second copper pipe 20, and the sealing component 30 plays a sealing role between the second copper pipe 20 and the first copper pipe 10. The second copper pipe 20 forms two welded connections and one sealing structure at the connection end with the valve, which improves the reliability of the connection and the sealing performance compared to a single welded structure.

[0029] Specifically, an arcuate groove 11 is formed at the end of the first copper pipe 10 away from the second copper pipe 20 for connection to the conveying pipeline. The rotation axis of the arcuate groove wall 11 intersects perpendicularly with the center line of the first copper pipe 10. An arcuate plate 26 is provided at the end of the first copper pipe 10 away from the second copper pipe 20. The arcuate surface of the arcuate plate 26 coincides with the rotation axis of the arcuate groove wall 11. A through hole is formed in the middle of the arcuate plate 26, which connects to the first copper pipe 10. The first copper pipe 10 can be connected to the conveying pipeline by welding the arcuate plate 26 to the conveying pipeline. The frontal projection of the arcuate plate 26 is hexagonal with straight edges. Compared with the arcuate groove 11, the arcuate plate 26 is easier to weld to the conveying pipeline.

[0030] During setup, the inner diameter of the second copper pipe 20 is the same as the outer diameter of the first copper pipe 10, and the inner diameter of the second copper pipe 20 is the same as the outer diameter of the valve connection end, ensuring high fluid flow efficiency. The inner wall of the first copper pipe 10 is smooth, allowing the fluid inside the first copper pipe 10 to pass through with low resistance.

[0031] Specifically, the second copper tube 20 has two symmetrically arranged second arc-shaped grooves 24. A second contact block 25 is provided on the inner wall of the second copper tube 20 between the two arc-shaped grooves 24. The second contact block 25 is interference-fitted with the valve's connection end. Welding rods are placed within the second arc-shaped grooves 24 for welding, and the second contact block 25 fits with the valve's connection end, forming a ring-shaped area that connects and seals the second copper tube 20 to the valve, further improving the sealing effect. The first arc-shaped groove 21 and the second arc-shaped groove 24 are arranged alternately.

[0032] A marking annular groove 23 is provided on the outer wall of the second copper tube 20 on the side away from the first copper tube 10. The marking annular groove 23 marks the welding area. During welding, the welding metal needs to be stacked onto the marking annular groove 23 to ensure a firm weld. A weld bevel is provided at the end of the second copper tube 20 away from the first copper tube 10 to increase the welding area and further ensure the stability of the weld.

[0033] In a specific configuration, the sealing assembly 30 includes a fixing ring 31 disposed on the inner wall of the second copper tube 20, with the fixing ring 31 adjacent to the first copper tube 10. A first sealing ring 32 is disposed on the side of the fixing ring 31 away from the first copper tube 10. When the second copper tube 20 is fitted onto the connecting end of the valve, the first sealing ring 32 contacts the end of the valve's connecting end, forming a sealing structure. An installation annular groove 33 is formed on the inner wall of the second copper tube 20 between the first arc-shaped groove 21 and the first sealing ring 32. A second sealing ring 34 is disposed within the installation annular groove 33, and the second sealing ring 34 contacts the outer wall of the valve's connecting end, further improving the sealing effect.

[0034] In this embodiment, the high-flow-rate, low-resistance copper connector for the valve operates as follows: The second copper pipe 20 is fitted onto the valve's connection end, and then welding is performed by placing a welding rod within the first arc-shaped groove 21 and the second arc-shaped groove 24. Subsequently, circumferential welding is performed to reinforce the connection between the end of the second copper pipe 20 and the valve. At this point, the first sealing ring 32 contacts the end of the valve's connection end, and the second sealing ring 34 contacts the outer wall of the valve's connection end. This creates two welded connections and two sealing structures between the second copper pipe 20 and the valve's connection end, improving the reliability of the connection and the sealing performance.

[0035] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A high flow low resistance copper adapter for valves, characterized in that: The device includes a first copper pipe (10), a second copper pipe (20) arranged concentrically at one end of the first copper pipe (10), two symmetrically arranged first arc-shaped grooves (21) on the second copper pipe (20), a first abutting block (22) on the inner wall of the second copper pipe (20) between the two first arc-shaped grooves (21), the first abutting block (22) being interference-fitted with the connection end of the valve, an arc groove (11) at the end of the first copper pipe (10) away from the second copper pipe (20), and a sealing assembly (30) inside the second copper pipe (20).

2. The high-flow-rate, low-resistance copper fitting for valves according to claim 1, characterized in that: The inner diameter of the second copper tube (20) is the same as the outer diameter of the first copper tube (10).

3. The high-flow-rate, low-resistance copper fitting for valves according to claim 1, characterized in that: The rotation axis of the arc groove (11) wall is perpendicular to the center line of the first copper tube (10).

4. The high-flow-rate, low-resistance copper fitting for valves according to claim 1, characterized in that: A marking annular groove (23) is provided on the outer wall of the second copper tube (20) away from the first copper tube (10).

5. The high-flow-rate, low-resistance copper fitting for valves according to claim 1, characterized in that: The sealing assembly (30) includes a fixing ring (31) disposed on the inner wall of the second copper tube (20), and a first sealing ring (32) disposed on the side of the fixing ring (31) away from the first copper tube (10).

6. The high-flow-rate, low-resistance copper fitting for valves according to claim 5, characterized in that: The second copper tube (20) has an installation annular groove (33) on its inner wall between the first arc groove (21) and the first sealing ring (32), and a second sealing ring (34) is provided in the installation annular groove (33).

7. The high-flow-rate, low-resistance copper fitting for valves according to claim 1, characterized in that: The second copper tube (20) has two symmetrically arranged second arc-shaped grooves (24). The second copper tube (20) has a second abutment block (25) on its inner wall between the two second arc-shaped grooves (24). The second abutment block (25) is interference-fitted with the connection end of the valve.

8. The high-flow-rate, low-resistance copper fitting for valves according to claim 7, characterized in that: The first arc-shaped groove (21) and the second arc-shaped groove (24) are arranged alternately.

9. The high-flow-rate, low-resistance copper fitting for valves according to claim 1, characterized in that: An arc plate (26) is provided at the end of the first copper tube (10) away from the second copper tube (20), and the arc plate surface of the arc plate (26) coincides with the rotation axis of the arc groove (11) wall.

10. The high-flow-rate, low-resistance copper fitting for valves according to claim 9, characterized in that: The arc-shaped plate (26) has a through hole in the middle, and the through hole is connected to the first copper tube (10).

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