A socket welding elbow with convenient butt joint and production process

Abstract

The application relates to the technical field of pipe fittings, in particular to a socket welding straight elbow convenient for butt joint and a production process, which comprises a straight elbow pipe body, both ends of the straight elbow pipe body are provided with lead-in rings, one end of each lead-in ring is provided with a sleeve ring, both ends of the straight elbow pipe body are inserted with pipelines, the inside of the straight elbow pipe body is provided with a limiting clamp for limiting the pipelines after the pipelines are inserted into the straight elbow pipe body, and a reserved port is arranged on the surface of the lead-in ring. The socket welding straight elbow convenient for butt joint and the production process have the beneficial effects that the limiting clamp is arranged between the straight elbow pipe body and the pipelines, the straight elbow pipe body and the pipelines can be quickly assembled, the assembled straight elbow pipe body and the pipelines can meet the normal conveying work of the pipelines even if the straight elbow pipe body and the pipelines are not welded, the reserved port is preset on the surface of the lead-in ring, the sleeve ring and the pipelines are welded through the reserved port, and the welding and reinforcement of the straight elbow pipe body and the pipelines are completed.

Description

Technical Field

[0001] This invention relates to the field of pipe fittings, specifically to a socket weld right-angle elbow that facilitates connection and its manufacturing process. Background Technology

[0002] In piping systems, elbows are fittings used to change the direction of pipelines. Based on angle, the three most common types are 45°, 90°, and 180°. Additionally, depending on project requirements, other non-standard angle elbows such as 60° are also available. Elbows are made from materials including cast iron, stainless steel, alloy steel, malleable cast iron, carbon steel, non-ferrous metals, and plastics.

[0003] In the existing technology, the bend is installed between the two pipe bodies. After the pipeline is connected by the bend, the bend and the pipe body need to be welded and reinforced. When the pipe body and the bend are not welded and fixed, the pipeline cannot complete the normal transportation work. That is, if a bend along the pipeline is not fixed, it will affect the normal use of the entire pipeline. Summary of the Invention

[0004] The purpose of this invention is to provide a socket weld right-angle elbow that is easy to connect and a manufacturing process, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a socket weld right-angle elbow that is easy to connect, comprising a right-angle elbow body, both ends of the right-angle elbow body are provided with guide rings, one end of the guide ring is provided with a collar, both ends of the right-angle elbow body are connected to pipes, the inside of the right-angle elbow body is provided with a limiting clip for limiting the pipe after it is inserted into the right-angle elbow body, and the surface of the guide ring is provided with a reserved opening.

[0006] Preferably, the inlet ring has a frustum-shaped ring plate structure, the diameter of the end of the inlet ring near the right-angle bend body is equal to the diameter of the right-angle bend body, and the diameter of the end of the inlet ring away from the right-angle bend body is greater than the diameter of the right-angle bend body.

[0007] Preferably, the collar has an annular plate structure, and the inner ring diameter of the collar is equal to the inner ring diameter of the end of the guide ring away from the right-angle bend body. The inner ring surface of the collar is provided with an insert groove, which has an annular plate structure. A sealing ring is fixed inside the insert groove. The inner ring diameter of the sealing ring is smaller than the inner ring diameter of the collar. After the pipe is inserted into the right-angle bend body, the sealing ring is clamped between the collar and the pipe.

[0008] Preferably, the inner annular surface of the sealing ring is provided with a groove, which is an annular groove.

[0009] Preferably, there are multiple reserved ports, which are arranged and distributed along the outer ring surface of the inlet ring.

[0010] Preferably, a welded connecting ring is fixed to the inner ring surface of the inlet ring. The welded connecting ring is a frustum-shaped tube. After the pipe is inserted into the right-angle bend body, the welded connecting ring is clamped between the pipe and the collar.

[0011] Preferably, the limiting device includes a retaining ring, a side groove, a sealing gasket ring, a mating groove, an elastic traction piece, and a locking strip. The retaining ring has an annular plate structure, and its outer ring surface is fixed to the inner wall of the right-angle bend body. The inner ring diameter of the retaining ring is equal to the inner ring diameter of the pipe. A side groove is provided at the end of the retaining ring facing the pipe. The side groove is an annular groove. The sealing gasket ring has an annular plate structure with a "U" shaped cross-section. The sealing gasket ring is fixed to the surface of the side groove. The thickness of the sealing gasket ring is greater than the depth of the side groove. Multiple mating grooves are provided on the inner ring surface of the retaining ring. An elastic traction piece is movably inserted into the mating groove. One end of the elastic traction piece is fixed to the surface of the pipe, and the other end of the elastic traction piece is fixed with a locking strip. The locking strip is a right-angled trapezoidal strip. When the pipe is inserted into the right-angle bend body and blocked by the retaining ring, the sealing gasket ring is squeezed and deformed by the pipe, and the locking strip is locked on one side of the retaining ring.

[0012] Preferably, the collar has a receiving groove on the side facing the right-angle bend body. The receiving groove is an annular groove. A rubber cover is fixed inside the receiving groove. A rubber ring is fixed at one end of the rubber cover. The rubber ring is pushed into the limiting groove. The limiting groove is a circular groove. The limiting groove is opened on the surface of the right-angle bend body. When the rubber ring is in the limiting groove, the rubber cover unfolds to protect the guide ring.

[0013] Preferably, the surface of the storage slot is fixed with an elastic clip, which is a ring plate structure with an arc-shaped cross section. When the rubber ring is pushed and clamped between the storage slot and the elastic clip, the rubber cover is folded into the storage slot.

[0014] A manufacturing process for socket welding right-angle elbows that facilitates joint connection, the manufacturing method comprising the following steps:

[0015] An inlet ring and a collar are integrally cast at both ends of the right-angle bend body. An elastic traction plate is pre-fixed at one end of the pipe, and a retaining ring is fixed on the inner wall of the right-angle bend body. A retaining strip is connected to the surface of the elastic traction plate, and multiple reserved openings are made on the surface of the inlet ring.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The present invention proposes a socket-welded right-angle elbow and its manufacturing process that facilitates connection. A limiting clip is installed between the right-angle elbow body and the pipe to achieve rapid assembly of the right-angle elbow body and the pipe. Even if the assembled right-angle elbow body and the pipe are not welded, they can still meet the normal transportation needs of the pipeline. A pre-reserved opening is preset on the surface of the inlet ring. The welding collar and the pipe are passed through the pre-reserved opening, thereby completing the welding reinforcement of the right-angle elbow body and the pipe. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a schematic diagram of a partial cross-section of the present invention;

[0020] Figure 3 This is a schematic diagram of the retaining ring structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the pipeline structure of the present invention;

[0022] Figure 5 This is a schematic diagram of the connection structure between the inlet ring and the collar of the present invention;

[0023] Figure 6 This is a half-sectional schematic diagram of the connection structure between the inlet ring and the collar of the present invention.

[0024] In the diagram: 1. Right-angle bend body; 2. Inlet ring; 3. Collar ring; 4. Pipe; 5. Retaining ring; 6. Side groove; 7. Sealing gasket ring; 8. Butt groove; 9. Elastic traction piece; 10. Clip; 11. Embedding groove; 12. Sealing ring; 13. Joint groove; 14. Welding ring; 15. Reserved opening; 16. Storage groove; 17. Rubber cover; 18. Rubber ring; 19. Limiting groove; 20. Elastic clamp. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Example 1

[0027] Please see Figures 1-2This invention provides a technical solution: a socket-welded right-angle elbow that facilitates connection, comprising a right-angle elbow body 1, with guide rings 2 at both ends of the right-angle elbow body 1, a collar 3 at one end of the guide ring 2, and pipes 4 inserted into both ends of the right-angle elbow body 1. A limiting clip is provided inside the right-angle elbow body 1 to limit the insertion of the pipe 4 into the right-angle elbow body 1. A pre-reserved opening 15 is provided on the surface of the guide ring 2. The limiting clip is installed between the right-angle elbow body 1 and the pipe 4 to achieve rapid assembly of the right-angle elbow body 1 and the pipe 4. Even without welding, the assembled right-angle elbow body 1 and pipe 4 can still meet the normal transport requirements of the pipeline. A pre-reserved opening 15 is pre-set on the surface of the guide ring 2, through which the collar 3 and pipe 4 are welded, thereby completing the welding reinforcement of the right-angle elbow body 1 and pipe 4.

[0028] Example 2

[0029] Based on Embodiment 1, in order to increase the friction force of the pipe 4 after it is inserted into the right-angle bend body 1 and then withdraws, the guide ring 2 has a frustum-shaped ring plate structure. The diameter of the end of the guide ring 2 near the right-angle bend body 1 is equal to the diameter of the right-angle bend body 1, and the diameter of the end of the guide ring 2 away from the right-angle bend body 1 is larger than the diameter of the right-angle bend body 1. The collar 3 has an annular plate structure. The inner ring diameter of the collar 3 is equal to the inner ring diameter of the end of the guide ring 2 away from the right-angle bend body 1. The inner ring surface of the collar 3 is provided with an insert groove 11. The insert groove 11 has an annular plate structure. A sealing ring 12 is fixed inside the insert groove 11. The inner ring diameter of the sealing ring 12 is smaller than the inner ring diameter of the collar 3. After the pipe 4 is inserted into the right-angle bend body 1, the sealing ring 12 is clamped between the collar 3 and the pipe 4. The inner ring surface of the sealing ring 12 is provided with a split groove 13. The split groove 13 is an annular groove.

[0030] Example 3

[0031] See attached document Figure 3 and Figure 4Based on Embodiment 2, in order to achieve rapid assembly of the right-angle bend body 1 and the pipe 4, a welded connecting ring 14 is fixed to the inner ring surface of the guide ring 2. The welded connecting ring 14 is a frustum-shaped pipe. After the pipe 4 is inserted into the right-angle bend body 1, the welded connecting ring 14 is clamped between the pipe 4 and the collar 3. The limiting clips include a retaining ring 5, a side groove 6, a sealing gasket ring 7, a mating groove 8, an elastic traction piece 9, and a locking strip 10. The retaining ring 5 has an annular plate structure. The outer ring surface of the retaining ring 5 is fixed to the inner wall of the right-angle bend body 1. The inner ring diameter of the retaining ring 5 is equal to the inner ring diameter of the pipe 4. The end of the retaining ring 5 facing the pipe 4 is opened. There is a side groove 6, which is an annular groove. The sealing gasket 7 is a ring plate structure with a "U" shaped cross section. The sealing gasket 7 is fixed to the surface of the side groove 6. The thickness of the sealing gasket 7 is greater than the depth of the side groove 6. The inner ring surface of the retaining ring 5 has multiple mating grooves 8. An elastic traction piece 9 is movably inserted into the inside of the mating groove 8. One end of the elastic traction piece 9 is fixed to the surface of the pipe 4, and the other end of the elastic traction piece 9 is fixed with a retaining strip 10. The retaining strip 10 is a right-angled trapezoidal strip. When the pipe 4 is inserted into the right-angled bend body 1 and blocked by the retaining ring 5, the sealing gasket 7 is squeezed and deformed by the pipe 4, and the retaining strip 10 is stuck on one side of the retaining ring 5.

[0032] Example 4

[0033] See attached document Figure 5 and Figure 6 Based on Embodiment 3, in order to enable the rubber cover 17 to unfold the protective collar 3 and to fold the rubber cover 17 into the storage groove 16, a storage groove 16 is provided on the side of the collar 3 facing the right-angle bend body 1. The storage groove 16 is an annular groove, and the rubber cover 17 is fixed inside the storage groove 16. A rubber ring 18 is fixed to one end of the rubber cover 17. The rubber ring 18 is pushed into the limiting groove 19. The limiting groove 19 is a circular groove and is opened on the surface of the right-angle bend body 1. When the rubber ring 18 is in the limiting groove 19, the rubber cover 17 unfolds to protect the guide ring 2. An elastic clip 20 is fixed to the surface of the storage groove 16. The elastic clip 20 is a ring plate structure with an arc-shaped cross section. When the rubber ring 18 is pushed and clamped between the storage groove 16 and the elastic clip 20, the rubber cover 17 is folded into the storage groove 16.

[0034] Example 5

[0035] A manufacturing process for socket welding right-angle elbows that facilitates joint connection, the manufacturing method comprising the following steps:

[0036] An inlet ring 2 and a collar 3 are integrally cast at both ends of the right-angle bend body 1. An elastic traction piece 9 is pre-fixed at one end of the pipe 4. A retaining ring 5 is fixed on the inner wall of the right-angle bend body 1. A retaining strip 10 is connected to the surface of the elastic traction piece 9. Multiple reserved openings 15 are opened on the surface of the inlet ring 2.

[0037] In actual use, when pipe 4 is pushed into the right-angle bend body 1, as pipe 4 is pushed forward, sealing ring 12 is squeezed between pipe 4 and collar 3. After the inclined surface of clamping strip 10 contacts retaining ring 5, as pipe 4 continues to advance, clamping strip 10 pushes elastic traction plate 9 to deform elastically until clamping strip 10 passes retaining ring 5. Then, elastic traction plate 9 rebounds and clamps clamping strip 10 on one side of retaining ring 5. At this time, sealing gasket 7 is compressed and deformed, clamped between pipe 4 and retaining ring 5. The rebound force of sealing gasket 7 pushes pipe 4, thereby causing clamping strip 12 to be squeezed between pipe 4 and retaining ring 5. 0 is tightly secured to one side of the retaining ring 5. At this time, even if the right-angle bend body 1 and pipe 4 are not welded, it will not affect the connection between the right-angle bend body 1 and pipe 4 to complete the conveying work. The welding ring 14 and pipe 4 are welded together through the reserved opening 15, thereby strengthening the connection between the right-angle bend body 1 and pipe 4. Then, the rubber ring 18 is pulled out from the storage groove 16 and put on the limiting groove 19. At this time, the rubber cover 17 unfolds and surrounds the outside of the inlet ring 2, thereby preventing rainwater from entering the gap between the inlet ring 2 and pipe 4 through the reserved opening 15.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A socket weld right-angle elbow for easy connection, comprising a right-angle elbow body (1), characterized in that: Both ends of the right-angle bend body (1) are provided with guide rings (2), one end of the guide ring (2) is provided with a collar (3), both ends of the right-angle bend body (1) are connected to pipes (4), the inside of the right-angle bend body (1) is provided with a limiting clip to limit the pipe (4) after it is inserted into the right-angle bend body (1), and the surface of the guide ring (2) is provided with a reserved opening (15). The limiting components include a retaining ring (5), a side groove (6), a sealing gasket ring (7), a docking groove (8), an elastic traction piece (9), and a locking strip (10). The retaining ring (5) has an annular plate structure. The outer ring surface of the retaining ring (5) is fixed to the inner wall of the right-angle bend body (1). The inner ring diameter of the retaining ring (5) is equal to the inner ring diameter of the pipe (4). The retaining ring (5) has a side groove (6) at one end facing the pipe (4). The side groove (6) is an annular groove. The sealing gasket ring (7) has an annular plate structure with a "U" shaped cross section. The sealing gasket ring (7) is fixed to the surface of the side groove (6). The thickness of the sealing gasket ring (7) is greater than the depth of the side groove (6). The inner ring surface of the retaining ring (5) has multiple docking grooves (8). An elastic traction piece (9) is movably inserted into the docking groove (8). One end of the elastic traction piece (9) is fixed to the surface of the pipe (4). On the other end of the elastic traction piece (9), a retaining strip (10) is fixed. The retaining strip (10) is a right-angled trapezoidal strip. When the pipe (4) is inserted into the right-angled bend body (1) and blocked by the retaining ring (5), the sealing gasket (7) is squeezed and deformed by the pipe (4), and the retaining strip (10) is stuck on one side of the retaining ring (5). The collar (3) is provided with a receiving groove (16) on the side facing the right-angled bend body (1). The receiving groove (16) is an annular groove. A rubber cover (17) is fixed inside the receiving groove (16). A rubber ring (18) is fixed at one end of the rubber cover (17). The rubber ring (18) is pushed into the limiting groove (19). The limiting groove (19) is a circular groove. The limiting groove (19) is opened on the surface of the right-angled bend body (1). When the rubber ring (18) is in the limiting groove (19), the rubber cover (17) unfolds to protect the guide ring (2).

2. The socket weld right-angle elbow according to claim 1, characterized in that: The inlet ring (2) has a frustum-shaped ring plate structure. The diameter of the inlet ring (2) near the right-angle bend body (1) is equal to the diameter of the right-angle bend body (1), and the diameter of the inlet ring (2) away from the right-angle bend body (1) is greater than the diameter of the right-angle bend body (1).

3. A socket-welded right-angle elbow as described in claim 1, characterized in that: The collar (3) has an annular plate structure. The inner ring diameter of the collar (3) is equal to the inner ring diameter of the end of the guide ring (2) away from the right-angle bend body (1). The inner ring surface of the collar (3) is provided with an insert groove (11). The insert groove (11) has an annular plate structure. A sealing ring (12) is fixed inside the insert groove (11). The inner ring diameter of the sealing ring (12) is smaller than the inner ring diameter of the collar (3). After the pipe (4) is inserted into the right-angle bend body (1), the sealing ring (12) is clamped between the collar (3) and the pipe (4).

4. A socket-welded right-angle elbow as described in claim 3, characterized in that: The inner ring surface of the sealing ring (12) is provided with a groove (13), which is an annular groove.

5. A socket-welded right-angle elbow as described in claim 1, characterized in that: The reserved opening (15) is provided in multiple ways, and the multiple reserved openings (15) are arranged and distributed along the outer ring surface of the inlet ring (2).

6. A socket-welded right-angle elbow as described in claim 1, characterized in that: The inner ring surface of the inlet ring (2) is fixed with a welding ring (14). The welding ring (14) is a frustum-shaped tube. After the pipe (4) is inserted into the right-angle bend body (1), the welding ring (14) is clamped between the pipe (4) and the collar (3).

7. A socket-welded right-angle elbow as described in claim 1, characterized in that: The surface of the storage groove (16) is fixed with an elastic clip (20). The elastic clip (20) has a ring plate structure with a circular arc cross section. When the rubber ring (18) is pushed and clamped between the storage groove (16) and the elastic clip (20), the rubber cover (17) is folded into the storage groove (16).

8. A manufacturing process for a socket-welded right-angle elbow for easy connection as described in any one of claims 1-7, characterized in that: The production method includes the following steps: An inlet ring (2) and a collar (3) are integrally cast at both ends of the right-angle bend body (1), and an elastic traction piece (9) is pre-fixed at one end of the pipe (4), and a retaining ring (5) is fixed on the inner wall of the right-angle bend body (1). A retaining strip (10) is connected to the surface of the elastic traction piece (9), and multiple reserved openings (15) are opened on the surface of the inlet ring (2).

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