Electric fusion welding clamp for coil pipe

Abstract

The utility model discloses an electric fusion welding clamp for a coiled pipe, which comprises pipe clamp components arranged at intervals in the front-back direction, and a position adjusting component is connected between the front pipe clamp component and the rear pipe clamp component; the pipe clamp assembly comprises two semicircular clamping plates which are hinged to each other, and locking assemblies used for locking the two semicircular clamping plates are connected to the two semicircular clamping plates. According to the utility model, the two pipe clamp assemblies are arranged, so that the pipe fitting can be fixed, and meanwhile, the ends of two pipes needing electric fusion welding can be clamped and corrected, so that the out-of-roundness and the warping degree of the ends of the pipes can be corrected, the pipes at the two ends of the pipe fitting are kept coaxial, and a reasonable gap is kept between the pipe fitting and the welding surface of the pipes. Therefore, the two pipes and the electric melting pipe fitting can be assembled in a socket and spigot joint mode. And during socket assembly, the position adjusting assembly can drive the two pipe clamp assemblies to move relatively, so that the two pipes are driven to move through movement of the pipe clamp assemblies, the pipes and the electric smelting pipe fitting are subjected to socket, manual operation is facilitated, and the pipes and the electric smelting pipe fitting are conveniently driven to be subjected to socket in place.

Description

Technical Field

[0001] The utility model relates to the technical field of coiled pipe welding, and particularly relates to an electrofusion welding fixture for coiled pipes. Background Art

[0002] Most coiled pipes have a diameter below dn63, and electrofusion welding is inevitably involved in the use process for connection. Due to factors such as large out-of-roundness and self-bending of the pipe, problems often occur in the cooperation between the coiled pipe and the electrofusion fitting during electrofusion welding, resulting in unqualified weld joints.

[0003] For example, due to the excessive out-of-roundness of the coiled pipe, it cannot be inserted into the electrofusion socket of the electrofusion fitting. If forced to insert, the gap will be uneven. At the same time, due to the self-bending of the coiled pipe, situations such as misalignment during assembly or failure to achieve proper insertion and connection may occur.

[0004] Therefore, there is an urgent need for an electrofusion welding fixture for coiled pipes to solve the above problems. Content of the Utility Model

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides an electrofusion welding fixture for coiled pipes.

[0006] An electrofusion welding fixture for coiled pipes designed according to this purpose includes pipe clamp assemblies arranged at intervals front and back, and a position adjustment component is connected between the front and rear pipe clamp assemblies;

[0007] The pipe clamp assembly includes two semi-circular clamping plates hinged to each other, and a locking component for locking the two semi-circular clamping plates is connected between the two semi-circular clamping plates.

[0008] Preferably, the locking component includes a connecting seat arranged on one of the semi-circular clamping plates, a locking bolt is hinged to the connecting seat, a locking nut is threadedly connected to the locking bolt, a locking seat is arranged on the other semi-circular clamping plate, and the locking nut abuts against the locking seat to form a lock.

[0009] Preferably, the position adjustment component includes a rack fixedly connected to one of the pipe clamp assemblies, a gear seat is arranged on the other pipe clamp assembly, a gear is rotatably arranged on the gear seat, and the gear meshes with the rack.

[0010] Preferably, the gear is connected to a driving shaft head, and the driving shaft head and the gear are coaxially arranged.

[0011] Compared with the prior art, the utility model includes pipe clamp assemblies arranged at intervals front and back, and a position adjustment assembly is connected between the two pipe clamp assemblies front and back; the pipe clamp assembly includes two semi-circular clamping plates hinged to each other, and a locking assembly for locking the two semi-circular clamping plates is connected to the two semi-circular clamping plates. The utility model is provided with two pipe clamp assemblies, which can play a role in fixing pipe fittings, and at the same time can also clamp and correct the ends of two pipes that need to be electrofusion welded to correct the non-circularity and warping degree of the pipe ends, so as to facilitate the socket assembly of the two pipes and the electrofusion fitting. During the socket assembly, the position adjustment assembly can drive the two pipe clamp assemblies to move relatively, so as to drive the two pipes to move through the movement of the pipe clamp assemblies, so that the pipes and the electrofusion fitting are socketed, which is not only convenient for manual operation but also convenient for driving the pipes and the electrofusion fitting to be socketed in place. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 FIG. 1 is one of the three-dimensional structure diagrams of the utility model;

[0013] Figure 2 FIG. 2 is the second three-dimensional structure diagram of the utility model;

[0014] Figure 3 FIG. 3 is the structural diagram of the pipe clamp assembly in the open state;

[0015] Figure 4 FIG. 4 is one of the clamping diagrams of the pipe clamp assembly and the pipe;

[0016] Figure 5 FIG. 5 is the second clamping diagram of the pipe clamp assembly and the pipe;

[0017] Figure 6 FIG. 6 is the connection diagram of the pipe and the electrofusion fitting. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following further describes the utility model with reference to the drawings and embodiments.

[0019] See Figures 1-6 , an electrofusion welding jig for coiled pipes, including pipe clamp assemblies 10 arranged at intervals front and back, and a position adjustment assembly 20 is connected between the two pipe clamp assemblies 10 front and back; the position adjustment assembly 20 can drive the two pipe clamp assemblies 10 to move relatively to drive two pipes 40 to move relatively; the pipe clamp assembly 10 includes two semi-circular clamping plates 110 hinged to each other, and a locking assembly 30 for locking the two semi-circular clamping plates 110 is connected to the two semi-circular clamping plates 110.

[0020] In actual use, by providing two pipe clamp assemblies, it can play a role in fixing pipe fittings, and at the same time can also clamp and correct the ends of two pipes that need to be electrofusion welded to correct the non-circularity of the pipe ends, so as to facilitate the socket assembly of the two pipes and the electrofusion fitting.

[0021] During socket assembly, two pipe clamps are used to fix two pipes. The position adjustment assembly 20 can drive the two pipe clamp assemblies 10 to move relative to each other, so as to drive the two pipes 40 to move through the movement of the pipe clamp assemblies 10, so that the pipes 40 can be inserted into the electrofusion fitting 50. The setting of the position adjustment assembly 20 can facilitate the insertion of the pipes 40 into the electrofusion fitting 50, saving time and effort, facilitating manual operation, optimizing the assembly process, and thus improving the assembly efficiency.

[0022] See Figure 2 and Figure 3 , the locking assembly 30 includes a connecting seat 310 provided on one of the semi-circular clamping plates 110. The connecting seat 310 is hinged with a locking bolt 320. A locking nut 330 is threadedly connected to the locking bolt 320. A locking seat 340 is provided on the other semi-circular clamping plate 110. The locking nut 330 abuts against the locking seat 340 to form a lock.

[0023] When unlocking is required, by rotating the locking nut 330, the locking nut 330 is moved away from the locking seat 340, thereby unlocking, and the two semi-circular clamping plates 110 can be flipped open relative to each other.

[0024] When locking, first close the two semi-circular clamping plates 110, then rotate the locking bolt 320 to move it to the locking position, and then rotate the locking nut 330 so that the locking nut 330 abuts against the end face of the locking seat 340 facing away from the connecting seat 310, that is, the locking is completed.

[0025] See Figure 2 , the position adjustment assembly 20 includes a rack 210 fixedly connected to one of the pipe clamp assemblies 10. A gear seat 220 is provided on the other pipe clamp assembly 10. A gear 230 is rotatably provided on the gear seat 220. The gear 230 meshes with the rack 210. By rotating the gear 230, the rack 210 can be driven to move through the gear 230, so as to drive the two pipe clamp assemblies 10 to move relative to each other, that is, drive the clamped pipes 40 to move. So as to facilitate the insertion of the clamped pipes 40 into the electrofusion fitting 50.

[0026] See Figure 2 , the gear 230 is connected with a drive shaft head 240, and the drive shaft head 240 and the gear 230 are coaxially arranged. The drive shaft head 240 is a hexagonal sleeve. During operation, a hex wrench can be inserted into it to realize driving the drive shaft head 240 to rotate by rotating the hex wrench, thereby driving the gear 230 to rotate.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features.

[0028] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An electrofusion welding fixture for a coiled pipe, characterized in that: It includes pipe clip assemblies (10) arranged at intervals before and after, and a position adjustment assembly (20) is connected between the two pipe clip assemblies (10) before and after; The position adjustment assembly (20) can drive the two pipe clip assemblies (10) to move relatively, so as to drive the two pipes (40) to move relatively; The pipe clip assembly (10) includes two semi-circular clamping plates (110) hinged to each other, and a locking assembly (30) for locking the two semi-circular clamping plates (110) is connected between the two semi-circular clamping plates (110).

2. The electrofusion welding fixture for a coiled pipe according to claim 1, characterized in that: The locking assembly (30) includes a connecting seat (310) arranged on one of the semi-circular clamping plates (110), a locking bolt (320) is hinged to the connecting seat (310), a locking nut (330) is threadedly connected to the locking bolt (320), a locking seat (340) is arranged on the other semi-circular clamping plate (110), and the locking nut (330) abuts against the locking seat (340) to form a lock.

3. The electrofusion welding fixture for coiled pipes according to claim 1, characterized in that: The position adjustment assembly (20) includes a rack (210) fixedly connected to one of the pipe clip assemblies (10), a gear seat (220) is arranged on the other pipe clip assembly (10), a gear (230) is rotatably arranged on the gear seat (220), and the gear (230) meshes with the rack (210).

4. The electrofusion welding fixture for coiled pipes according to claim 3, wherein: The gear (230) is connected with a driving shaft head (240), and the driving shaft head (240) and the gear (230) are coaxially arranged.

Images