MPP pipe convenient to weld

Abstract

The utility model discloses an MPP (modified polypropylene) pipe convenient to weld, which belongs to the field of MPP pipes and comprises MPP pipe bodies, a positioning connecting mechanism and an L-shaped positioning inserting rod are matched with the MPP pipe bodies for use, and when the two MPP pipe bodies need to be welded together, the positioning connecting mechanism is connected with the L-shaped positioning inserting rod. An L-shaped positioning inserting rod at one end of the outer wall of one MPP pipe body can be inserted into a movable opening formed in the side wall of a connecting plate installed at one end of the outer wall of the other MPP pipe body, a rotary knob is rotated to drive a screw to rotate, the screw pushes a movable block through a rotating block, and a limiting rod on the bottom face of the movable block penetrates through a limiting inserting opening to be inserted into a limiting inserting groove; the two MPP pipe bodies are connected and installed together rapidly before welding, the problem that errors are caused by shaking of the MPP pipe bodies in the welding process can be avoided, the welding stability between the MPP pipe bodies is guaranteed, the purpose that workers can weld the MPP pipe bodies conveniently is achieved, and the welding quality of the MPP pipe bodies is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of MPP pipes, in particular to an MPP pipe which is convenient for welding. Background Art

[0002] MPP pipe is also called MPP power cable protection pipe, which is divided into trenching type and non-trenching type. MPP non-trenching pipe is also called MPP jacking pipe or dragging pipe. MPP pipe uses modified polypropylene as the main raw material. It has the characteristics of high temperature resistance and external pressure resistance, and is suitable for medium and low voltage transmission line cable pipes below 10KV. MPP uses modified polypropylene as the main raw material, which does not require a large amount of dredging, digging and road damage, and can be used for laying pipelines, cables and other construction projects in special areas such as roads, railways, buildings, and riverbeds.

[0003] In the prior art, MMP pipes often need to be welded at the joints when they are connected. However, when the existing MPP pipes are connected through welded parts, there is no positioning structure at the pipe joints to position the pipes, resulting in poor stability of the pipes during welding and easy movement, which makes the MPP pipes prone to shaking during welding. There are certain deviations in the welding of the MPP pipes, which makes it inconvenient for workers to weld the MPP pipes, thereby reducing the welding quality of the MPP pipes. Utility Model Content

[0004] The main purpose of the utility model is to provide an MPP pipe that is easy to weld and can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A conveniently welded MPP pipe comprises an MPP pipe body, one end of the MPP pipe body is provided with a positioning connection mechanism, and the positioning connection mechanism comprises a connecting plate, a movable block, a limiting rod and a screw rod, one end of the outer wall of the MPP pipe body is fixedly connected to a symmetrical connecting plate by welding, and the movable block is movably connected to the inside of the connecting plate by sliding blocks on both sides, the limiting rod is fixedly connected to the bottom surface of the movable block, the screw rod is movably connected to the threaded hole on the top surface of the connecting plate, and the screw rod is also movably connected to the connecting plate by a rotating block at the bottom end, and the other end of the outer wall of the MPP pipe body is also fixedly connected to a symmetrical L-shaped positioning plug rod by welding.

[0007] Preferably, a group of vertically symmetrical connecting plates are fixedly installed on one end of the outer wall of the MPP pipe body, and a movable opening is opened on the side wall of the connecting plate, a limiting slot is opened on the inner bottom surface of the movable opening, and sliding openings are respectively opened on the inner side walls of the movable opening, and a threaded hole is opened on the inner top surface of the movable opening.

[0008] Preferably, sliding blocks are fixedly mounted on both sides of the movable block, and the sliding blocks are movably mounted in the sliding openings.

[0009] Preferably, a convex groove is formed on the top surface of the movable block, and a limiting rod is fixedly installed on the bottom surface of the movable block, and the limiting rod is inserted and installed in the limiting slot.

[0010] Preferably, the screw rod is threadedly connected to the threaded hole, and a knob is fixedly mounted on the top end of the screw rod, and a rotating block is fixedly mounted on the bottom end of the screw rod, and the rotating block is movably mounted in the convex groove.

[0011] Preferably, a group of L-shaped positioning rods symmetrically installed in the upper and lower directions are fixedly installed on the other end of the outer wall of the MPP pipe body, and the transverse part of the L-shaped positioning rod is inserted and installed in the movable opening. A limiting socket is provided on the top surface of the transverse part of the L-shaped positioning rod, and the limiting rod passes through the limiting socket.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] In the utility model, the positioning connection mechanism and the L-shaped positioning rod are used in conjunction with the MPP pipe body. When two MPP pipe bodies need to be welded together, the L-shaped positioning rod at one end of the outer wall of one MPP pipe body can be inserted into the movable opening opened on the side wall of the connecting plate installed at one end of the outer wall of the other MPP pipe body, and the knob is rotated to drive the screw to rotate, so that the screw pushes the movable block through the rotating block to allow the limiting rod on the bottom of the movable block to pass through the limiting insertion opening and be inserted into the limiting slot, so that the two MPP pipe bodies can be quickly connected and installed together before welding, which can avoid the problem of errors caused by the shaking of the MPP pipe body during the welding process and ensure the welding stability between the MPP pipe bodies, thereby not only achieving the purpose of facilitating the staff to weld the MPP pipe body, but also ensuring the welding quality of the MPP pipe body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the overall structure of the L-shaped positioning rod of the utility model;

[0016] Figure 3 It is a schematic diagram of the structural disassembly of the positioning and connecting mechanism of the utility model.

[0017] In the figure: 1. MPP pipe body; 2. positioning connection mechanism; 3. L-shaped positioning rod; 4. limit socket; 5. connecting plate; 6. movable port; 7. limit slot; 8. sliding port; 9. threaded hole; 10. movable block; 11. sliding block; 12. convex groove; 13. limit rod; 14. screw; 15. knob; 16. rotating block. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] like Figure 1 - Figure 3 As shown, an MPP pipe that is easy to weld includes an MPP pipe body 1, one end of the MPP pipe body 1 is provided with a positioning connection mechanism 2, and the positioning connection mechanism 2 includes a connecting plate 5, a movable block 10, a limiting rod 13 and a screw 14, one end of the outer wall of the MPP pipe body 1 is fixedly connected with a symmetrical connecting plate 5 by welding, and the movable block 10 is movably connected to the inside of the connecting plate 5 through sliding blocks 11 on both sides, the limiting rod 13 is fixedly connected to the bottom surface of the movable block 10, the screw 14 is movably connected to the threaded hole 9 on the top surface of the connecting plate 5, and the screw 14 is also movably connected to the connecting plate 5 through a rotating block 16 at the bottom end, and the other end of the outer wall of the MPP pipe body 1 is also fixedly connected with a symmetrical L-shaped positioning plug 3 by welding.

[0020] like Figure 1 - Figure 3 As shown, in this embodiment, in order to connect the adjacent MPP pipe bodies 1 together through the positioning connection mechanism 2 and the L-shaped positioning rod 3, so as to facilitate the staff to weld the connection between the two MPP pipe bodies 1, a group of vertically symmetrical connecting plates 5 are fixedly installed at one end of the outer wall of the MPP pipe body 1, and a movable opening 6 is opened on the side wall of the connecting plate 5, and a limited slot 7 is opened on the inner bottom surface of the movable opening 6, and sliding openings 8 are respectively opened on the inner side walls of the movable opening 6, and a threaded hole 9 is opened on the inner top surface of the movable opening 6, and sliding blocks 11 are respectively fixedly installed on both sides of the movable block 10, and the sliding block 11 is movably installed in the sliding opening 8, and the movable A convex groove 12 is provided on the top surface of the movable block 10, and a limit rod 13 is fixedly installed on the bottom surface of the movable block 10, and the limit rod 13 is inserted and installed in the limit slot 7, the screw 14 is threadedly connected with the threaded hole 9, and a knob 15 is fixedly installed on the top of the screw 14, and a rotating block 16 is fixedly installed on the bottom end of the screw 14, and the rotating block 16 is movably installed in the convex groove 12, and a group of upper and lower symmetrical L-shaped positioning rods 3 are fixedly installed on the other end of the outer wall of the MPP pipe body 1, and the lateral part of the L-shaped positioning rod 3 is inserted and installed in the movable opening 6, and a limit socket 4 is provided on the top surface of the lateral part of the L-shaped positioning rod 3, and the limit rod 13 passes through the limit socket 4;

[0021] The specific use principle of the positioning connection mechanism 2 and the L-shaped positioning rod 3 in conjunction with the MPP pipe body 1 is as follows: before welding the two MPP pipe bodies 1, the symmetrical L-shaped positioning rod 3 installed at one end of the outer wall of one of the MPP pipe bodies 1 is inserted into the movable opening 6 opened on the side wall of the symmetrical connecting plate 5 installed at one end of the outer wall of the other MPP pipe body 1, and then, the knob 15 located on the connecting plate 5 is rotated in sequence, and the knob 15 will drive the screw rod 14 to realize the threaded rotation operation in the threaded hole 9 opened on the inner top surface of the movable opening 6, and in the process of threaded rotation, the rotating block 16 installed at the bottom end will be driven to rotate in the convex groove 12 opened on the top surface of the movable block 10, and when the knob 15 is continuously rotated, the screw rod 14 will gradually move into the movable opening 6 through the threaded hole 9, and push the movable block 10 inwardly through the rotating block 16, and when the movable block 10 moves in the movable opening 6, the sliding blocks 11 installed on both sides of the movable block 10 will be on the inner side walls of the movable opening 6 The L-shaped positioning rod 3 is inserted into the movable opening 6 to slide in the sliding opening 8, and the knob 15 is continuously rotated until the limiting rod 13 installed on the bottom surface of the movable block 10 passes through the limiting socket 4 opened on the top surface of the transverse part of the L-shaped positioning rod 3 inserted in the movable opening 6 and is inserted into the limiting slot 7 opened on the inner bottom surface of the movable opening 6, and the knob 15 can no longer be rotated, so that the two MPP pipe bodies 1 can be quickly positioned and connected together. Finally, the staff can weld the joints between the MPP pipe bodies 1 through welding parts, and during welding, the transverse part of the L-shaped positioning rod 3 has a certain distance from the connection, so it will not affect the welding operation, so that the two MPP pipe bodies 1 are quickly connected and installed together before welding, which can avoid the problem of error caused by the shaking of the MPP pipe body 1 during the welding process, and ensure the welding stability between the MPP pipe bodies 1, thereby not only achieving the purpose of facilitating the staff to weld the MPP pipe body 1, but also ensuring the welding quality of the MPP pipe body 1.

[0022] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, various improvements may be made to the present invention and its components may be replaced by equivalents, or some of its technical features may be replaced by equivalents without departing from the scope of the present invention. All that is within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An MPP pipe that is easy to weld, comprising an MPP pipe body (1), characterized in that: One end of the MPP pipe body (1) is provided with a positioning connection mechanism (2), and the positioning connection mechanism (2) comprises a connecting plate (5), a movable block (10), a limiting rod (13) and a screw (14); one end of the outer wall of the MPP pipe body (1) is fixedly connected to a symmetrical connecting plate (5) by welding, and the movable block (10) is movably connected to the inside of the connecting plate (5) by sliding blocks (11) on both sides; the limiting rod (13) is fixedly connected to the bottom surface of the movable block (10); the screw (14) is movably connected to a threaded hole (9) on the top surface of the connecting plate (5), and the screw (14) is also movably connected to the connecting plate (5) by a rotating block (16) at the bottom end; and the other end of the outer wall of the MPP pipe body (1) is also fixedly connected to a symmetrical L-shaped positioning plug rod (3) by welding.

2. The MPP pipe convenient for welding according to claim 1, characterized in that: A group of vertically symmetrical connecting plates (5) are fixedly mounted on one end of the outer wall of the MPP pipe body (1), and a movable opening (6) is provided on the side wall of the connecting plate (5), a limiting slot (7) is provided on the inner bottom surface of the movable opening (6), and sliding openings (8) are respectively provided on the inner side walls of the movable opening (6), and a threaded hole (9) is provided on the inner top surface of the movable opening (6).

3. The MPP pipe convenient for welding according to claim 2, characterized in that: Sliding blocks (11) are fixedly mounted on both sides of the movable block (10), and the sliding blocks (11) are movably mounted in the sliding opening (8).

4. The MPP pipe convenient for welding according to claim 3, characterized in that: The top surface of the movable block (10) is provided with a convex groove (12), and the bottom surface of the movable block (10) is also fixedly mounted with a limit rod (13), wherein the limit rod (13) is inserted and mounted in the limit slot (7).

5. The MPP pipe convenient for welding according to claim 4, characterized in that: The screw rod (14) is threadedly connected to the threaded hole (9), and a knob (15) is fixedly mounted on the top end of the screw rod (14), and a rotating block (16) is fixedly mounted on the bottom end of the screw rod (14), and the rotating block (16) is movably mounted in the convex groove (12).

6. The MPP pipe convenient for welding according to claim 5, characterized in that: A set of vertically symmetrical L-shaped positioning rods (3) are fixedly mounted on the other end of the outer wall of the MPP pipe body (1), and the transverse portion of the L-shaped positioning rod (3) is inserted and mounted in the movable opening (6). A limit slot (4) is provided on the top surface of the transverse portion of the L-shaped positioning rod (3), and the limit rod (13) passes through the limit slot (4).

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