A pipeline laying engineering auxiliary device

Abstract

This utility model relates to the field of pipeline laying technology, specifically to an auxiliary device for pipeline laying engineering. It includes a central frame and two sets of pipe end holders located on the left and right sides of the central frame. The two sets of pipe end holders are slidably connected to the central frame. A measuring rod is also attached to the pipe end holder and pulled along the length of the pipe fitting. The measuring rod is pushed inward against the inner wall of the female pipe until its front end touches the protrusion inside the female pipe. At this point, the depth of the measuring rod in the female pipe is equal to the heat fusion depth of the female pipe. A cartridge is fixed to the inner end of the measuring rod near the central axis of the pipe fitting, and a drawing pen is inserted into the cartridge. After measuring the heat fusion depth of the female pipe, the pipe end holders are brought close together and removed from the female pipe, then placed onto the male pipe. The two sets of pipe end holders are then repositioned on both sides of the male pipe opening. At this point, the drawing pen contacts the outer wall of the male pipe. By rotating the central frame, the two sets of pipe end holders rotate around the male pipe, completing the marking of the heat fusion depth on the outer wall of the male pipe.

Description

Technical Field

[0001] This utility model relates to the field of pipeline laying technology, specifically to an auxiliary device for pipeline laying projects. Background Technology

[0002] Pipeline laying requires pipe connection, especially for injection molded pipes, which often use fusion welding. During fusion welding, the depth of the melt needs to be controlled.

[0003] If the heat fusion depth of the male (convex end) and female (concave end) is inconsistent, it will lead to a mismatch in the volume of molten material, resulting in problems such as incomplete welding, missing welding, or uneven weld.

[0004] There are raised ridges on the inner wall of the female tube at the melting depth position to mark the female head's heat fusion depth, while there is no limiting structure for the heat fusion depth on the outer wall of the male tube, so it is necessary to measure and mark it.

[0005] The commonly used method is to measure the depth of the female connector with a ruler, then use the ruler to trace the required length along the circumference of the male connector tube, and finally use a pen to draw a line along the circumference of the tube to mark the heat fusion depth of the male connector tube.

[0006] To improve the efficiency and accuracy of calibrating the heat fusion depth of male pipes, a pipe laying engineering auxiliary device has been designed specifically for sampling the heat fusion depth of female pipes and calibrating the heat fusion depth of male pipes. Utility Model Content

[0007] (I) Technical Issues

[0008] The present invention aims to at least solve the problem that the heat fusion depth of the male connector needs to be compatible with that of the female connector in the prior art, and therefore a special tool needs to be designed to complete the heat fusion depth calibration of the male connector tube.

[0009] (II) Technical Content

[0010] This solution provides an auxiliary device for pipeline laying, which is achieved by the following specific technical means: including a central frame and two sets of pipe end holders located on the left and right sides of the central frame. The pipe end holders are placed on both sides of the pipe end face, and the two sets of pipe end holders are slidably connected to the central frame.

[0011] A measuring rod that can be pulled out along the length of the pipe fitting is also provided on the pipe fitting holder. The measuring rod is used to measure the heat fusion depth of the female pipe.

[0012] A tube is fixed at the inner end of the measuring rod near the central axis of the pipe fitting. A paintbrush is inserted into the tube and marks the heat fusion depth of the outer wall of the male pipe by rotating around it.

[0013] Preferred technical solution 1: There is a tightening bolt on the tube port holder. The end of the tightening bolt extends into the through hole and presses against the measuring rod to fix the measuring rod.

[0014] Preferred technical solution 2: The pipe fitting is an L-shaped structure, with the protruding part of the pipe fitting contacting the end wall of the female pipe fitting; at the same time, the recessed part of the pipe fitting is used to contact the end wall of the male pipe fitting.

[0015] Preferred technical solution 3: A roller is rotatably embedded in the groove on the inner side of the recessed portion of the pipe fitting.

[0016] Preferred technical solution four: Slide rails are fixed on both sides of the central frame, and the two sets of pipe port holders slide on the two sets of slide rails respectively.

[0017] Preferred technical solution five: A spring is connected between the central frame and the pipe end holder, and the tension of the spring provides the force to bring the two sets of pipe end holders closer to each other.

[0018] (III) Technical Effects

[0019] The above structure gives this solution the following advantages:

[0020] It can quickly measure the set heat fusion depth data inside the male tube and transfer it to the male tube for quick marking. The marking line is accurate and not prone to deviation.

[0021] The use of two sets of measuring rods can enhance measurement accuracy and avoid unexpected problems caused by using only one set of measuring rods. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram of the structure of one embodiment of the present solution;

[0024] Figure 2 This is a schematic diagram of another embodiment of the present solution;

[0025] Figure 3 This diagram shows the state of the heat fusion depth of the female connector tube in this scheme.

[0026] Figure 4 This is a diagram showing the marked state of the heat fusion depth of the male connector tube in this scheme;

[0027] Figure 5 This is a structural diagram of the central frame and the pipe fitting in this scheme.

[0028] Among them, 1. center frame, 11. handle, 2. pipe port holder, 21. through hole, 22. threaded hole, 23. protruding part, 24. recessed part, 3. measuring rod, 31. insert, 32. pen, 4. roller, 5. spring, 6. tightening bolt, 7. slide rail, 8. female tube, 81. convex rib, 9. male tube. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-5 The auxiliary device for pipeline laying includes a central frame 1 and two sets of pipe end clamps 2 located on the left and right sides of the central frame 1. The two sets of pipe end clamps 2 are respectively clamped on both sides of the pipe end wall of the fitting. Slide rails 7 are fixed on both sides of the central frame 1. The two sets of pipe end clamps 2 slide on the two sets of slide rails 7 respectively. The position of the pipe end clamps 2 and the central frame 1 can be adjusted by moving the pipe end clamps 2 on the slide rails 7 to adapt to different pipe diameters.

[0031] A measuring rod 3 (a non-circular rod, to prevent it from rotating on the pipe fitting 2) is pulled out along the length of the pipe fitting in the through hole 21 opened on the pipe fitting 2. At the same time, the measuring rod 3 is connected to the through hole 21 with damping. By increasing the frictional resistance between the two (preferably by increasing the roughness of the inner wall of the through hole 21), the measuring rod 3 is prevented from sliding freely on the pipe fitting 2 without external force. When measuring the heat fusion depth of the female tube 8, the measuring rod 3 is pushed inward against the inner wall of the female tube 8 until the front end of the measuring rod 3 touches the protrusion 81 inside the female tube 8. At this time, the depth of the measuring rod 3 inserted into the female tube 8 is equal to the heat fusion depth of the female tube 8.

[0032] A tube 31 is fixed at the inner end of the measuring rod 3, near the central axis of the pipe fitting, and a paintbrush 32 is inserted into the tube 31.

[0033] After measuring the heat fusion depth of the female tube 8, the tube end holders 2 are brought close together and removed from the female tube 8, then placed onto the male tube 9. The two sets of tube end holders 2 are then placed back on both sides of the tube end of the male tube 9. At this time, the pen 32 is in contact with the outer wall of the male tube 9. By rotating the center frame 1, the two sets of tube end holders 2 are rotated around the male tube 9 to complete the marking of the heat fusion depth on the outer wall of the male tube 9. A handle 11 is fixed on the back of the center frame 1 for holding and using when marking.

[0034] In one set of embodiments

[0035] Please see Figure 1 , Figure 5 A threaded hole 22 communicating with the through hole 21 is formed on the pipe fitting 2. The end of the tightening bolt 6 installed in the threaded hole 22 extends into the through hole 21 and presses against the measuring rod 3 to fix the measuring rod 3. That is, after measuring the heat fusion depth of the female tube 8, the measurement data of the measuring rod 3 can be fixed.

[0036] In one set of embodiments

[0037] Please see Figure 3 , Figure 4 The pipe fitting 2 has an L-shaped structure. The protruding part 23 of the pipe fitting 2 is used to contact the pipe end wall of the female pipe 8; at the same time, the recessed part 24 of the pipe fitting 2 is used to contact the pipe end wall of the male pipe 9.

[0038] The distance between the protruding part 23 and the recessed part 24 of the pipe fitting 2 is equal to the distance between the end of the pen 32 and the front end of the measuring rod 3, so that the distance between the front end of the measuring rod 3 and the protruding part 23 of the pipe fitting 2 is equal to the distance between the end of the pen 32 and the bracket of the recessed part 24 of the pipe fitting 2, and both are equal to the heat fusion depth.

[0039] In one set of embodiments

[0040] Please see Figure 1 , Figure 5 A rollable roller 4 is embedded in the groove on the inner side of the recessed portion 24 of the pipe fitting 2. The roller 4 is used to contact the end wall of the male pipe 9. When marking lines, the roller 4 rolls to reduce the frictional resistance between the pipe fitting 2 and the end wall of the male pipe 9.

[0041] In one set of embodiments

[0042] Please see Figure 2 , Figure 3 , Figure 4 A spring 5 is connected between the central frame 1 and the pipe end holder 2. The tension of the spring 5 provides the force for the two sets of pipe end holders 2 to move closer to each other.

[0043] In use, first pull the measuring rod 3 forward, then insert the two sets of measuring rods 3 into the female tube 8 initially, and pull the two sets of tube port holders 2 away from each other until the measuring rod is close to the inner wall of the female tube 8. Then push the whole thing forward. The front end of the measuring rod first contacts the protrusion 81 inside the female tube 8 and is blocked, so it cannot go deeper. The tube port holder 2 continues to move forward until the protrusion 23 contacts the tube port end wall of the female tube 8. At this time, the measurement of the heat fusion depth can be completed. Then release the pulling force of the two sets of tube port holders 2 and pull the whole thing out of the female tube 8 smoothly.

[0044] If necessary, choose whether to use the tightening bolt 6 to fix the position of the measuring rod 3. Then, pull open the two sets of pipe port holders 2 and place them at the port of the male pipe 9. At this time, the concave part of the pipe port holder 2 is in contact with the end wall of the pipe port, and the pen 32 at the end of the measuring rod 3 is in contact with the outer wall of the male pipe 9. At this time, the hot melt depth can be marked on the wall of the male pipe 9 by rotating the whole thing.

[0045] During use, this solution requires daily maintenance of each component according to the established maintenance plan to ensure its working condition.

[0046] The parts not disclosed in this utility model are all prior art, and their specific structures and working principles will not be described in detail.

[0047] Unless otherwise expressly specified and limited, the terms "set up," "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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0048] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pipeline construction aid, characterised in that: It includes a central frame (1) and two sets of pipe end holders (2) located on the left and right sides of the central frame (1). The two sets of pipe end holders (2) are respectively placed on both sides of the pipe end wall, and the two sets of pipe end holders (2) are slidably connected to the central frame (1). A measuring rod (3) is also pulled out along the length of the pipe fitting on the pipe fitting seat (2) for measuring the heat fusion depth of the female pipe (8); A tube (31) is fixed at the inner end of the measuring rod (3) near the central axis of the pipe fitting. A pen (32) is inserted into the tube (31). After measuring the heat fusion depth of the female tube (8), the pipe end holder (2) is placed on the male tube (9). The pen (32) contacts the outer wall of the male tube (9) and marks the heat fusion depth on the outer wall of the male tube (9).

2. A pipeline construction aid according to claim 1, characterised in that: The pipe mouth holder (2) has an L-shaped structure. The protruding part (23) of the pipe mouth holder (2) is used to contact the pipe mouth end wall of the female pipe (8); at the same time, the recessed part (24) of the pipe mouth holder (2) is used to contact the pipe mouth end wall of the male pipe (9). The distance between the protruding part (23) and the recessed part (24) of the tube holder (2) is equal to the distance between the end of the pen (32) and the front end of the measuring rod (3).

3. A pipeline construction aid according to claim 2, wherein: A roller (4) is rotatably embedded on the inner side of the recessed portion (24) of the pipe fitting (2), and the roller (4) is used to contact the end wall of the male pipe (9).

4. A pipe laying aid according to claim 1, characterised in that: A spring (5) is connected between the center frame (1) and the nozzle holder (2).

5. The auxiliary device for pipeline laying engineering according to claim 1, characterized in that: The measuring rod (3) and the nozzle holder (2) are connected by a damped sliding connection.

6. The auxiliary device for pipeline laying engineering according to claim 1, characterized in that: There are tightening bolts (6) on the tube holder (2) for pressing and fixing the measuring rod (3).

7. The auxiliary device for pipeline laying engineering according to claim 1, characterized in that: Slide rails (7) are fixed on both sides of the central frame (1), and the two sets of pipe port holders (2) slide on the two sets of slide rails (7) respectively.

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