A pipe and electrofusion fitting welding fixing device convenient to adjust

Abstract

The utility model discloses a pipe and electric melting pipe fitting welding fixing device convenient to adjust, including two adjusting base, two adjusting base relative rotation setting with pivot as the axle, be provided with the fixed module group for fixing pipe on the adjusting base, be provided with a plurality of locking holes with pivot as the axle and circular array on the adjusting base, be provided with the plug -in locking module group on any one adjusting base, and the plug -in locking module group can be plugged -in in the locking hole of two adjusting base's corresponding, thereby restricts two adjusting base relative rotation. Through two with pivot as the axle relative rotation's adjusting base, cooperate circular array distribution's locking hole and plug -in locking module group, can according to the bending angle of different specifications elbow head electric melting pipe fitting, and the included angle between two sides pipe is adjusted flexibly. Satisfy the demand of diversified engineering scene, need not for different angle's electric melting pipe fitting and equip the exclusive fixed tool.

Description

Technical Field

[0001] This utility model relates to the field of pipe welding and fixing technology, and in particular to a pipe and electrofusion fitting welding and fixing device that is easy to adjust. Background Technology

[0002] In the field of pipeline engineering, the insertion welding of pipes and electrofusion fittings is a key process for achieving pipeline connections, and the quality of the connection directly affects the sealing performance, pressure resistance, and service life of the pipeline system. During this welding process, ensuring that the pipes on both sides maintain a preset angle with the electrofusion fitting is crucial, as the accuracy of the angle directly determines the routing precision, stress distribution, and overall structural stability of the pipeline after welding.

[0003] To ensure the accuracy of the aforementioned included angle, specialized fixing tools are typically used to position and secure the pipes on both sides. The core function of these tools is to limit the displacement and angular changes of the pipes during the welding operation, keeping the relative position between the pipes and the electrofusion fittings stable. This provides a reliable reference for the welding process and ensures that the welded joint meets design standards.

[0004] However, in practical applications, electrofusion fittings exhibit diverse specifications, especially those used as bends. Their bending angles are designed in various types to meet different engineering requirements, such as the common 90°, 45°, and other special angles. Different specifications of bend fittings require different included angles between the two sides of the fitting to accommodate different pipeline routing designs.

[0005] Current tools for securing pipes have significant limitations: the included angle of existing tools is usually fixed and cannot be adjusted according to the specifications of electrofusion fittings. This means that when dealing with electrofusion fittings at different angles, construction workers must be equipped with fixing tools corresponding to the included angle, and each type of electrofusion fitting requires a dedicated fixing tool. This situation not only increases the procurement and storage costs of construction equipment but also prolongs construction preparation time and reduces construction efficiency. On the construction site, workers need to frequently change tools to adapt to different operational needs. Especially in complex pipeline laying scenarios, frequent tool changes can easily lead to cumbersome operations, delays, and other problems, seriously affecting the convenience and practicality of construction. Utility Model Content

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an easily adjustable welding and fixing device for pipes and electrofusion fittings.

[0007] A welding and fixing device for pipes and electrofusion fittings designed for this purpose includes two adjusting bases, which are arranged to rotate relative to each other about a rotating shaft.

[0008] The adjusting base is equipped with a fixing module for fixing the pipe;

[0009] The adjusting base has multiple locking holes arranged in a circular array around the pivot axis;

[0010] A locking module is provided on any one of the adjustment bases. The locking module can be inserted into the corresponding locking holes of the two adjustment bases, thereby constraining the relative rotation of the two adjustment bases.

[0011] Preferably, the plug-in locking module includes a mounting bracket fixed on any one of the adjustment bases, the mounting bracket is movably provided with a moving rod, the moving rod is connected to a movable locking pin that can be plugged into a locking hole, and the mounting bracket and the movable locking pin are connected with an elastic element;

[0012] The elastic element is used to apply force to the movable locking pin, so that the movable locking pin remains inserted in the two locking holes.

[0013] Preferably, the mounting bracket is provided with a through hole, the movable rod is movably inserted into the through hole, and a limit handle is connected to the end of the movable rod away from the movable locking pin.

[0014] Preferably, the fixing module includes a first clamping member and a second clamping member, and the fixing tube is clamped and fixed between the first clamping member and the second clamping member;

[0015] The first clamping member and the second clamping member are connected to each other by a number of fasteners;

[0016] The first clamping member is detachably connected to the adjusting base.

[0017] Preferably, the fixing module further includes a connecting base, which is detachably connected to the adjusting base, and the first clamping member is detachably connected to the connecting base.

[0018] Preferably, the adjusting base is provided with an adjusting groove, and the connecting base is provided with a through hole corresponding to the adjusting groove;

[0019] A bolt is inserted into the adjusting groove, and the bolt extends upward through the through hole; the bolt is threaded with a nut, and the adjusting base and the connecting base are clamped and fixed between the nut and the bolt head.

[0020] Preferably, the connecting base is provided with a mounting slot, and the first clamping member is provided with a mounting block, the mounting block being movably inserted into the mounting slot;

[0021] The connecting base has threaded holes on both sides that communicate with the mounting slot. The mounting block has a limiting hole that corresponds to and communicates with the threaded hole. A limiting bolt that is inserted into the limiting hole is threaded into the threaded hole.

[0022] Compared with existing technologies, this invention utilizes two adjusting bases that rotate relative to each other around a pivot, along with a circular array of locking holes and a plug-in locking module. This allows for flexible adjustment of the angle between the two pipes on either side, adapting to the bending angle of electrofusion fittings of different specifications. Construction workers simply rotate the adjusting base to the desired angle and insert the plug-in locking module into the corresponding locking hole to complete the fixation. It is compatible with electrofusion fittings at 90°, 45°, and other special angles, meeting the needs of diverse engineering scenarios without requiring dedicated fixing tools for fittings at different angles. Attached Figure Description

[0023] Figure 1 This is one of the three-dimensional structural schematic diagrams of this utility model;

[0024] Figure 2 This is the second three-dimensional structural schematic diagram of the present invention;

[0025] Figure 3 This is an exploded structural diagram of the present invention;

[0026] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle;

[0027] Figure 5 This is a cross-sectional structural diagram of the present invention;

[0028] Figure 6 for Figure 5 Enlarged structural diagram at point B. Detailed Implementation

[0029] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0031] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary and secondary relationship of the indicated technical features.

[0032] In this document, the term "implementation" means that a specific feature, structure, or characteristic described in connection with an implementation may be included in at least one implementation of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same implementation, nor is it a separate or alternative implementation mutually exclusive with other implementations. It will be explicitly and implicitly understood by those skilled in the art that the implementations described herein can be combined with other implementations.

[0033] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0034] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple groups" refers to two or more (including two groups), and "multiple pieces" refers to two or more (including two pieces).

[0035] In the description of the embodiments of this application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application 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 the embodiments of this application.

[0036] In the description of the embodiments of this application, unless otherwise explicitly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0037] See Figures 1-5An easily adjustable pipe and electrofusion fitting welding and fixing device includes two adjusting bases 10, which are rotatably arranged relative to each other about a pivot 100. Each adjusting base 10 is provided with a fixing module 20 for fixing a pipe 40. Multiple locking holes 120 are arranged in a circular array around the pivot 100. A plug-in locking module 30 is provided on any one of the adjusting bases 10, which can be plugged into the corresponding locking holes 120 of the two adjusting bases 10, thereby constraining the relative rotation of the two adjusting bases 10.

[0038] The working principle is as follows:

[0039] Two adjusting bases can rotate relative to each other around a pivot, providing a basis for adjusting the included angle of the two pipes. In use, first place the electrofusion fitting to be welded in the preset position, then insert the two pipes onto the corresponding ends of the electrofusion fitting, and finally secure the pipes using a fixing module to prevent displacement during welding.

[0040] Based on the bending angle requirements of the electrofusion fitting, rotate the two adjusting bases to form an angle between the pipes on both sides and the electrofusion fitting that meets the design requirements. Since multiple locking holes are arranged in a circular array around the pivot point on the adjusting bases, when the two adjusting bases rotate to the target angle, corresponding locking holes will appear on the two adjusting bases. At this time, operate the plug-in locking module located on either adjusting base and insert it into the corresponding locking hole on the two adjusting bases. With the cooperation of the plug-in locking module and the locking hole, the relative rotation of the two adjusting bases can be effectively constrained, keeping the angle between the pipes on both sides and the electrofusion fitting stable.

[0041] See Figure 6 The insertion locking module 30 includes a mounting bracket 310 fixed on any one of the adjustment bases 10. The mounting bracket 310 is movably provided with a moving rod 330. The moving rod 330 is connected to a movable locking pin 320 that can be inserted into the locking hole 120. The mounting bracket 310 and the movable locking pin 320 are connected with an elastic element 340. The elastic element 340 is used to apply force to the movable locking pin 320 so that the movable locking pin 320 is kept inserted into the two locking holes 120.

[0042] When it is necessary to lock the relative angle of the two adjusting bases, the elastic element applies a continuous force to the movable locking pin, pushing the movable locking pin and its connected movable rod along the mounting bracket toward the locking hole, so that the movable locking pin is precisely inserted into the corresponding locking holes of the two adjusting bases. At this time, the movable locking pin, through its engagement with the locking hole, directly restricts the relative rotation of the two adjusting bases around the pivot axis, thereby firmly maintaining the preset included angle between the pipes on both sides and the electrofusion fitting.

[0043] When the angle needs to be adjusted, the installer can pull the moving rod, causing the movable locking pin to move in the opposite direction along the mounting bracket against the force of the elastic element. This allows the movable locking pin to be pulled out of the locking hole, releasing the constraint on the two adjusting bases. At this point, the two adjusting bases can rotate freely relative to each other to adjust to a new angle. Once the angle is determined, releasing the moving rod will immediately restore the elastic element's deformation, pushing the movable locking pin back into the new corresponding locking hole, thus re-locking the system.

[0044] Furthermore, the two adjustable bases are arranged to rotate and connect to each other in a stacked configuration, while the plug-in locking module is located on the upper adjustable base to facilitate manual operation of the plug-in locking module.

[0045] Furthermore, the elastic element 340 is a spring.

[0046] See Figure 6 The mounting bracket 310 is provided with a through hole 360, and the movable rod 330 is movably inserted into the through hole 360. The end of the movable rod 330 away from the movable locking pin 320 is connected to a limit handle 350.

[0047] In the structure of this plug-in locking module, the through hole of the mounting bracket provides precise guidance and movement space for the moving rod. The moving rod is inserted into the through hole in a movable plug-in manner, allowing it to move stably back and forth along the axial direction of the through hole. This, in turn, drives the connected moving locking pin to move synchronously, ensuring the straightness and accuracy of the moving locking pin during insertion or withdrawal from the locking hole, and avoiding locking failure or operational jamming caused by deviation of the movement trajectory.

[0048] The limiting handle connected to the end of the moving rod away from the moving locking pin plays a crucial role in operation. When it is necessary to adjust the relative angle of the two adjusting bases, the operator can easily move the moving rod along the through hole away from the locking hole by holding the limiting handle and applying pulling force. This allows the moving locking pin to overcome the force of the elastic element and be pulled out of the locking hole. At this time, the limiting handle provides a reliable point of force application for the operator, improving the convenience and labor-saving of the operation.

[0049] Meanwhile, the limit handle is used to constrain the force of the elastic element. When the elastic element pushes the moving rod to move closer to the locking hole, the limit handle will abut against the mounting bracket to form an effective limit, preventing the moving rod from disengaging from the through hole under the continuous force of the elastic element, thus ensuring the integrity of the entire plug-in locking module structure and the safety of operation.

[0050] See Figure 4The fixing module 20 includes a first clamping member 210 and a second clamping member 220, and the fixing tube 40 is clamped and fixed between the first clamping member 210 and the second clamping member 220; the first clamping member 210 and the second clamping member 220 are connected to each other by a plurality of fasteners 250; the first clamping member 210 is detachably connected to the adjusting base 10. The fasteners 250 may be bolts.

[0051] See Figure 4 The fixing module 20 further includes a connecting base 200, which is detachably connected to the adjusting base 10, and the first clamping member 210 is detachably connected to the connecting base 200. By setting the connecting base 200 to detach the first clamping member 210 for quick assembly and disassembly, it is convenient to replace the first clamping member 210 according to the pipe diameter of different pipe materials.

[0052] See Figure 4 The adjusting base 10 is provided with an adjusting groove 110, and the connecting base 200 is provided with a through hole 203 corresponding to the adjusting groove 110. A bolt 230 is inserted into the adjusting groove 110, and the bolt 230 extends upward through the through hole 203. A nut 240 is threadedly connected to the bolt 230, and the adjusting base 10 and the connecting base 200 are clamped and fixed between the nut 240 and the bolt head of the bolt 230. The adjusting groove 110 allows the position of the connecting base 200 to be adjusted according to different pipe materials to meet different fixing requirements.

[0053] See Figure 4 The connecting base 200 is provided with a mounting slot 201, and the first clamping member 210 is provided with a mounting block 211, which is movably inserted into the mounting slot 201. The connecting base 200 has threaded holes 202 on both sides that communicate with the mounting slot 201. The mounting block 211 has a limiting hole 212 that corresponds to and communicates with the threaded hole 202. A limiting bolt 260, which is inserted into the limiting hole 212, is threaded into the threaded hole 202. Locking is achieved by using an insertion connection with the limiting bolt, facilitating disassembly and assembly, and simplifying future replacement operations.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An easily adjustable welding and fixing device for pipes and electrofusion fittings, characterized in that: It includes two adjusting bases (10), which are arranged to rotate relative to each other about a pivot (100); The adjusting base (10) is provided with a fixing module (20) for fixing the pipe (40); The adjusting base (10) has multiple locking holes (120) arranged in a circular array with the rotating shaft (100) as the axis; A plug-in locking module (30) is provided on any one of the adjustment bases (10). The plug-in locking module (30) can be plugged into the corresponding locking holes (120) of the two adjustment bases (10) to constrain the relative rotation of the two adjustment bases (10).

2. The easily adjustable pipe and electrofusion fitting welding and fixing device according to claim 1, characterized in that: The plug-in locking module (30) includes a mounting bracket (310) fixed on any one of the adjustment bases (10), the mounting bracket (310) is movably provided with a moving rod (330), the moving rod (330) is connected to a moving locking pin (320) that can be inserted into the locking hole (120), and the mounting bracket (310) and the moving locking pin (320) are connected with an elastic element (340); The elastic element (340) is used to apply force to the movable locking pin (320) so that the movable locking pin (320) remains inserted in the two locking holes (120).

3. The easily adjustable pipe and electrofusion fitting welding and fixing device according to claim 2, characterized in that: The mounting bracket (310) is provided with a through hole (360), and the movable rod (330) is movably inserted into the through hole (360). The end of the movable rod (330) away from the movable locking pin (320) is connected to a limit handle (350).

4. The easily adjustable pipe and electrofusion fitting welding and fixing device according to claim 1, characterized in that: The fixing module (20) includes a first clamping member (210) and a second clamping member (220), and the fixing tube (40) is clamped and fixed between the first clamping member (210) and the second clamping member (220); The first clamping member (210) and the second clamping member (220) are connected to each other by a plurality of fasteners (250); The first clamping member (210) is detachably connected to the adjusting base (10).

5. The easily adjustable pipe and electrofusion fitting welding and fixing device according to claim 4, characterized in that: The fixed module (20) further includes a connecting base (200), which is detachably connected to the adjusting base (10), and the first clamping member (210) is detachably connected to the connecting base (200).

6. The easily adjustable pipe and electrofusion fitting welding and fixing device according to claim 5, characterized in that: The adjusting base (10) is provided with an adjusting groove (110), and the connecting base (200) is provided with a through hole (203) corresponding to the adjusting groove (110); A bolt (230) is inserted into the adjusting groove (110), and the bolt (230) extends upward through the through hole (203); the bolt (230) is threadedly connected to a nut (240), and the adjusting base (10) and the connecting base (200) are clamped and fixed between the nut (240) and the bolt head of the bolt (230).

7. The easily adjustable pipe and electrofusion fitting welding and fixing device according to claim 5 or 6, characterized in that: The connecting base (200) is provided with a mounting slot (201), and the first clamping member (210) is provided with a mounting block (211), which is movably inserted into the mounting slot (201); The connecting base (200) has threaded holes (202) on both sides that communicate with the mounting slot (201). The mounting block (211) has a limiting hole (212) that corresponds to and communicates with the threaded hole (202). A limiting bolt (260) that is inserted into the limiting hole (212) is threaded into the threaded hole (202).

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