Welding auxiliary device

Abstract

The utility model discloses an auxiliary welding device which comprises a clamp a, a clamp b and a connecting bridge frame, two ends of the connecting bridge frame are respectively welded on the clamp a and the clamp b, two sides of the clamp a and the clamp b are respectively provided with a fixing mechanism a and a fixing mechanism b, and the connecting bridge frame is provided with a positive electrode interface and a negative electrode interface. The pipeline welding fixture has the advantages that the fixture a and the fixture b are respectively fixed at the position of a welded pipe, and the fixture a and the fixture b are respectively welded at the two ends of the connecting bridge frame, so that pipelines on the two sides are coaxial, and displacement of the pipelines caused by thermal deformation during welding is avoided. And the phenomenon that when the bent pipe slowly returns to the bending degree after being straightened, the bent pipe is inserted and falls off or is not in place, and quality welding accidents are caused is avoided.

Description

Technical Field

[0001] This utility model relates to the field of polyethylene plastic pipe technology, and in particular to a welding auxiliary device. Background Technology

[0002] Electrofusion welding of polyethylene plastic pipes involves inserting polyethylene plastic pipes into sleeves, elbows, tees, etc., and then fusing the pipes and fittings together using electric heating. Small-diameter polyethylene plastic pipes are typically shipped in 100-meter coils. During construction, a pipe-laying tool is used to extend the pipe, but after extension, it remains in a bent state. During electrofusion connection, misalignment can cause excessive stress on the fittings, leading to welding quality issues. Furthermore, if the pipe is not promptly restored to its original curvature after cutting, it can shorten, further affecting weld quality. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a welding auxiliary device.

[0004] The purpose of this utility model is achieved through the following technical solution: a welding auxiliary device, including a clamp a, a clamp b and a connecting bridge, the two ends of the connecting bridge are respectively welded to the clamp a and the clamp b, and the clamp a and the clamp b are respectively provided on both sides, and the connecting bridge is provided with a positive terminal interface and a negative terminal interface.

[0005] Preferably, a reinforcing rib a is provided in the middle of the connecting cable tray, and the positive and negative terminals are located on both sides of the reinforcing rib a.

[0006] Preferably, both clamp a and clamp b are semi-circular.

[0007] Preferably, the fixing mechanism a includes a fixing plate a, which is disposed on both sides of the clamp a. The fixing plate a has a plurality of mounting holes a for mounting bolts a.

[0008] Preferably, the fixing mechanism b includes a fixing plate b, which is disposed on both sides of the clamp b. The fixing plate b has a plurality of mounting holes b for mounting bolts b.

[0009] Preferably, the surfaces of clamp a and clamp b are provided with reinforcing ribs b, and the ends of the reinforcing ribs b are welded to the connecting cable tray.

[0010] This utility model has the following advantages: By fixing clamp a and clamp b to the welding pipe respectively, and welding clamp a and clamp b to both ends of the connecting cable tray, the pipes on both sides are made coaxial, thereby ensuring that the pipe will not be displaced due to thermal deformation during welding. This avoids the possibility of the pipe falling out or not being in place when it slowly returns to the bend after straightening, which could lead to quality welding accidents. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the welding auxiliary device;

[0012] In the diagram, 1-bolt a, 3-reinforcing rib b, 4-clamp a, 5-connecting cable tray, 6-fixing plate a, 7-fixing plate a, 8-fixing plate b, 9-clamp b, 10-bolt b, 11-positive terminal interface, 12-negative terminal interface. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0014] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0015] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0016] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0017] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] In this embodiment, as Figure 1 As shown, a welding auxiliary device includes clamp a4, clamp b9, and connecting bridge 5. The two ends of the connecting bridge 5 are welded to clamp a4 and clamp b9, respectively. Fixing mechanisms a and b are respectively provided on both sides of clamp a4 and clamp b9. The connecting bridge 5 has a positive terminal interface 11 and a negative terminal interface 12. By fixing clamp a4 and clamp b9 to the welding pipe, and welding clamp a4 and clamp b9 to both ends of the connecting bridge 5, the pipes on both sides are made coaxial. This ensures that the pipes will not shift due to thermal deformation during welding, preventing welding quality accidents caused by the pipe slowly returning to its bending angle after straightening.

[0020] Furthermore, a reinforcing rib a6 is provided in the middle of the connecting cable tray 5, with the positive terminal 11 and the negative terminal 12 located on both sides of the reinforcing rib a6. Specifically, the main function of the reinforcing rib a6 is to increase the structural strength of the connecting cable tray 5 itself.

[0021] Furthermore, both clamps a4 and b9 are semi-circular. That is to say, when clamps a4 and b9 need to be fixed to the welded pipe, the installer will place the two clamps a4 and the two clamps b9 on the outside of the pipe and align the fixing mechanism a on the two clamps a4 to fix them to the welded pipe. The fixing method for clamp b9 is the same, so it will not be described in detail here.

[0022] In this embodiment, the fixing mechanism a includes a fixing plate a7, which is disposed on both sides of the clamp a4. The fixing plate a7 has several mounting holes a for mounting bolts a1. Specifically, the installer places the two clamps a4 onto the outside of the pipe, aligns the mounting holes a on the two fixing plates a7, and then passes the bolts a1 through the mounting holes a for tightening, thereby fixing the clamps a4 to the welded pipe. Further, the fixing mechanism b includes a fixing plate b8, which is disposed on both sides of the clamp b9. The fixing plate b8 has several mounting holes b for mounting bolts b10. Specifically, the fixing method of the clamp b9 is the same as that of the clamp a4, and will not be described again here.

[0023] In this embodiment, the surfaces of clamps a4 and b9 are provided with reinforcing ribs b3, and the ends of the reinforcing ribs b3 are welded to the connecting cable tray 5. Specifically, the main function of the reinforcing ribs b3 is to increase the connection strength between clamps a4, clamps b9 and the connecting cable tray 5.

[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A welding auxiliary device, characterized in that: It includes clamp a (4), clamp b (9) and connecting bridge (5). The two ends of the connecting bridge (5) are welded to clamp a (4) and clamp b (9) respectively. Fixing mechanism a and fixing mechanism b are respectively provided on both sides of clamp a (4) and clamp b (9). A positive terminal interface (11) and a negative terminal interface (12) are provided on the connecting bridge (5).

2. The welding auxiliary device according to claim 1, characterized in that: The connecting cable tray (5) is provided with a reinforcing rib a (6) in the middle, and the positive terminal interface (11) and the negative terminal interface (12) are located on both sides of the reinforcing rib a (6).

3. The welding auxiliary device according to claim 2, characterized in that: Both clamp a (4) and clamp b (9) are semi-circular.

4. The welding auxiliary device according to claim 3, characterized in that: The fixing mechanism a includes a fixing plate a (7), which is disposed on both sides of the clamp a (4). The fixing plate a (7) has several mounting holes a, which are used to install bolts a (1).

5. The welding auxiliary device according to claim 4, characterized in that: The fixing mechanism b includes a fixing plate b (8), which is disposed on both sides of the clamp b (9). The fixing plate b (8) has a plurality of mounting holes b for mounting bolts b (10).

6. The welding auxiliary device according to claim 5, characterized in that: The surfaces of the clamps a (4) and b (9) are provided with reinforcing ribs b (3), and the ends of the reinforcing ribs b (3) are welded to the connecting bridge (5).

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