Auxiliary connecting device for electric smelting elbow and pipeline

Abstract

The utility model discloses an auxiliary connecting device for an electric smelting elbow and a pipeline, the connecting device comprises a supporting component for supporting the elbow and a connecting component for connecting the pipeline with the supporting component, and the connecting component can drive the pipeline to be gradually inserted into the elbow. The supporting component is an L-shaped support for supporting the two vertical side edges of the elbow, and an arc-shaped hoop for fastening the two side edges of the elbow to the L-shaped support is detachably arranged on the L-shaped support. According to the auxiliary connecting device, the stability of the elbow in the pipeline inserting process can be guaranteed, and the problems that the elbow deflects due to the acting force in the pipeline inserting process, and smooth pipeline inserting is further affected are solved. The connecting component can drive the pipeline to be axially inserted into the elbow step by step, so that the problem that the insertion resistance is further increased due to axial deflection when the pipeline and the elbow are inserted due to the influence of unstable factors during manual insertion operation at present is solved, and meanwhile, the defect that the elbow is damaged due to a knocking insertion mode is also avoided.

Description

Technical Field

[0001] This application relates to the field of electrofusion elbow and pipe connection technology, and in particular to an auxiliary connection device for electrofusion elbow and pipe. Background Technology

[0002] Electrofusion elbows are important pipe fittings. They utilize an electronic heater to electrically heat the pipe ends, causing the pipe molecules to move and melt, thus connecting the pipes through electrofusion heating. During the heating process, the pipe softens and can be bent into the required angle using a mold, achieving a curved connection. Electrofusion elbows are typically made of thermoplastic plastics such as PE, PP, PB, and PVDF. Their fusion connection ensures a tight seal and strong connection, resulting in a long service life. Due to their material properties, electrofusion elbows can withstand high temperatures and pressures, making them suitable for various working environments and offering corrosion resistance. The electrofusion connection process is relatively simple, eliminating the need for complex welding techniques, thus reducing installation difficulty and cost.

[0003] Currently, during the connection process of electrofusion elbows, the pipes to be connected must first be inserted to ensure the stability and sealing of the connection. However, to ensure a tight seal between the elbow and the pipe, the difference between the outer diameter of the pipe and the inner diameter of the elbow is usually small. Therefore, when the pipe is inserted into the elbow for a certain length, insertion resistance is very likely to occur, especially when there is axial misalignment between the pipe and the elbow during the insertion process (see instruction manual). Figure 1 As shown in the diagram, the insertion resistance between the two increases further, and using a hammering insertion method can also cause external force damage to the elbow (see instruction manual). Figure 2 As shown in the figure, this makes the connection between the pipe and the elbow time-consuming and laborious, and increases the cost of elbow damage. Summary of the Invention

[0004] To address the aforementioned problems, this application aims to provide an auxiliary connection device for electrofusion elbows and pipelines, which enables smooth insertion of pipelines and electrofusion elbows. This solves the problem that axial misalignment occurs during manual insertion due to unstable factors, further increasing insertion resistance. It also avoids the drawback of elbow damage caused by hammering during insertion.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: an auxiliary connection device for an electrofusion elbow and a pipeline, characterized in that: the connection device includes a support member for supporting the elbow, and a connecting member for connecting the pipeline to the support member, and the connecting member can drive the pipeline to be gradually inserted into the elbow.

[0006] Preferably, the supporting member is an L-shaped bracket that supports both vertical sides of the elbow, and an arc-shaped clamp is detachably provided on the L-shaped bracket to fasten both sides of the elbow to the L-shaped bracket.

[0007] Preferably, the connecting component includes a drive clamp sleeved on the pipe and a retractable connecting rope assembly that connects the drive clamp to the L-shaped bracket.

[0008] Preferably, an anti-slip rubber ring is provided inside the drive clamp and is fitted onto the pipe, and the anti-slip rubber ring contacts the inner wall of the drive clamp at an angle.

[0009] The beneficial effects of this application are as follows: The auxiliary connecting device, by supporting the elbow with the supporting member, ensures the stability of the elbow during pipe insertion, preventing the elbow from deflecting due to forces during the insertion process and further affecting the smooth insertion of the pipe. Furthermore, the connecting member allows the pipe to be gradually inserted axially into the elbow, solving the problem of axial deflection during manual insertion due to unstable factors, which further increases insertion resistance. It also avoids the drawback of elbow damage caused by hammering during insertion. Attached Figure Description

[0010] Figure 1 This diagram illustrates the current misalignment in the pipe connection to the electrofusion elbow.

[0011] Figure 2 This illustration shows how excessive force is used when inserting pipes into electrofusion elbows, causing the elbows to crack (as shown in the dotted box in the image).

[0012] Figure 3 This is a side view of the auxiliary connection device in this application.

[0013] Figure 4 This is a top view of the auxiliary connection device of this application.

[0014] Figure 5 The illustration shows the use of an auxiliary connection device to insert the pipe into the electrofusion elbow for this application.

[0015] Figure 6 For this application Figure 5 Top view of the structure.

[0016] Figure 7 This is a cross-sectional structural diagram of the drive clamp and anti-slip rubber ring of this application.

[0017] In the diagram: 7 - wire rope; 8 - lever hoist. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solutions of this application, the technical solutions of this application will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] Refer to the attached Figures 1-7 The diagram illustrates an auxiliary connection device for an electrofusion elbow and a pipe. This device includes a support member that supports the elbow 1. Supporting the elbow 1 ensures its stability during pipe insertion, preventing elbow misalignment caused by forces during insertion and ensuring a smooth connection. It also includes a connecting member that connects the pipe 2 to the support member, allowing the pipe 2 to be gradually inserted into the elbow 1. Specifically, after the elbow 1 is fixed by the support member, the connecting member connects the pipe 2 to the elbow 1. In this connected state, the connecting member also drives the pipe 2 towards the elbow 1 for insertion, thus facilitating a smooth connection. This solves the problem of axial misalignment during manual insertion, caused by unstable factors, which increases insertion resistance. It also avoids damage to the elbow 1 caused by hammering during insertion.

[0020] Specifically, such as Figure 3-6 As shown, the supporting member is an L-shaped bracket 3 that supports both vertical sides of the elbow 1. An arc-shaped clamp 4 is detachably mounted on the L-shaped bracket 3 to secure both sides of the elbow 1 to the L-shaped bracket 3. Figure 3-4 As shown, both ends of each arc-shaped clamp 4 are detachably connected to the L-shaped bracket 3 via bolts. In use, as... Figure 5-6 As shown, elbow 1 is placed on L-shaped bracket 3, and elbow 1 is fixed to L-shaped bracket 3 on both the horizontal and vertical sides by arc-shaped clamps 4 in the horizontal and vertical directions, so as to realize the assembly and fixation of elbow 1.

[0021] Specifically, such as Figure 3-6 As shown, the connecting component includes a drive clamp 5 sleeved on the pipe 2, which is fixed to the pipe with two halves looped together. The connecting component also includes a retractable connecting rope assembly that connects the drive clamp 5 to the L-shaped bracket 3. The connecting rope assembly includes a hand crank 8 and a wire rope 7 connecting the L-shaped bracket 3 and the two sides of the drive clamp 5. By driving the hand crank, the wire rope on both sides is tightened, and then the drive clamp 5 gradually drives the pipe 2 axially into the elbow 1, realizing the smooth insertion operation of the pipe 2 and the elbow 1.

[0022] Since the surface of pipe 2 is usually smooth, to prevent the drive clamp 5 from sliding on the surface of pipe 2 during the insertion process, preferably, an anti-slip rubber ring 6 is provided inside the drive clamp 5 and fitted onto pipe 2, with the anti-slip rubber ring 6 contacting the inner wall of the drive clamp 5 at an angle. The anti-slip rubber ring 6 is preferably made of rubber, which can be pressed against the pipe surface under the clamping action of the drive clamp 5, improving the anti-slip properties between the drive clamp 5 and the surface of pipe 2. Further... Figure 7 As shown, since the anti-slip rubber ring 6 and the inner wall of the drive clamp 5 are in contact with each other at an angle, during the process of pulling the drive clamp 5 with the wire rope, the drive clamp 5 moves along the angle of the anti-slip rubber ring 6 relative to the anti-slip rubber ring 6. As the height of the anti-slip rubber ring 6 gradually increases, the resistance to the relative movement of the drive clamp 5 increases, and the clamping force between the two further increases, thus increasing the resistance to the movement of the drive clamp 5 and preventing the drive clamp 5 from slipping off the anti-slip rubber ring 6. At the same time, the anti-slip rubber ring 6 is further pressed against the pipe surface, which increases the contact friction between the anti-slip rubber ring 6 and the pipe surface. Therefore, during the external force insertion process, a larger insertion driving force can be applied, and the sliding of the drive clamp 5 and the anti-slip rubber ring 6 on the pipe surface can be effectively prevented.

[0023] The principle of this application is as follows: When performing the insertion operation of the electrofusion elbow 1 and the pipe 2, the elbow 1 is first placed on the L-shaped bracket 3, and the horizontal and vertical sides of the elbow 1 are fixed to the L-shaped bracket 3 by the arc-shaped clamps 4 in the horizontal and vertical directions, thereby realizing the assembly and fixation of the elbow 1. Then, the anti-slip rubber ring 6 and the driving clamp 5 are fitted on the pipe, and the driving clamp 5 is used to press the anti-slip rubber ring 6 tightly onto the circumference of the pipe 2.

[0024] Next, steel wire ropes are connected to both sides of the L-shaped bracket 3 and both sides of the drive clamp 5. Then, the two steel wire ropes are connected by a hand lever hoist. By driving the hand lever hoist, the steel wire ropes on both sides are tightened, and the pipe 2 is gradually driven axially into the elbow 1, so as to realize the smooth insertion operation of the pipe 2 and the elbow 1.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this application. Various changes and modifications may be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims.

Claims

1. An auxiliary connection device for an electrofusion elbow and a pipeline, characterized in that: The connecting device includes a support member for supporting the elbow (1) and a connecting member for connecting the pipe (2) to the support member, and the connecting member can drive the pipe (2) to be gradually inserted into the elbow (1); The supporting component is an L-shaped bracket (3) that supports both vertical sides of the elbow (1). An arc-shaped clamp (4) is detachably provided on the L-shaped bracket (3) to fasten both sides of the elbow (1) to the L-shaped bracket (3). The connecting component includes a drive clamp (5) sleeved on the pipe (2) and a retractable connecting rope assembly that connects the drive clamp (5) to the L-shaped bracket (3); the connecting rope assembly includes a hand-operated hoist (8) and a wire rope (7) that connect the L-shaped bracket (3) and the drive clamp (5) on both sides. An anti-slip rubber ring (6) is provided inside the drive clamp (5) and is fitted on the pipe (2), and the anti-slip rubber ring (6) is in contact with the inner wall of the drive clamp (5) at an angle.

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