Winding pipe

Abstract

The utility model provides a winding pipe which comprises a pipe body, a spiral winding layer is arranged on the outer wall of the pipe body, the two ends of the pipe body are fixedly connected with a bellmouth and a spigot respectively, an electric melting mesh belt is installed on the outer wall of the spigot, a first groove corresponding to a welding part is formed in the outer wall of the bellmouth, and a second groove corresponding to the welding part is formed in the outer wall of the spigot. And an annular thermosensitive color developing layer is arranged in the first groove. Through the arrangement of the first groove, the thermosensitive color development layer and the protective film, when the electric melting mesh belt is electrified for heating and welding, flowing molten slurry enables the color of the thermosensitive color development layer to change through the heat of the molten slurry; by observing the color changing range of the thermosensitive color developing layer and the continuity of the color changing area, the flowing range of molten slurry in the welding area and the temperature change of the welding area can be known, a constructor can intuitively judge whether the molten slurry on the welding surface completely fills the bell and spigot gap or not, and hidden dangers such as pseudo soldering and gas inclusion are remarkably reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline technical field, specifically, relate to a winding pipe. BACKGROUND

[0002] The polyethylene plastic steel winding pipe is made of the profiled strip of steel and plastic composite spiral winding welding, and the inner wall is smooth and even, the pipe has the advantages of corrosion resistance, light weight, simple installation, large flow capacity and long service life, can replace cement, cast iron, glass steel pipe, ceramic and other material pipe, belongs to the environment-friendly green product, the connecting mode of the pipe is that directional current is applied to the electric melting wire preset at the interface, the heat generated by the Joule effect makes the polyethylene material at the interface of the socket and the spigot melt, and the fusion connection of the two pipes is realized after cooling.

[0003] However, the connecting mode has the following disadvantages: in the process of fusion, the construction personnel cannot directly observe the interface melting state, it is difficult to accurately judge whether the flowing melt completely fills the gap between the socket and the spigot, and the virtual welding and air inclusion defects may occur, affecting the sealing property of the interface, and in the process of fusion, the two pipes need to be fixed by the fixed support, so that the socket and the spigot do not move and fall off during the fusion process, and the fixed support needs to be removed after the fusion and cooling, so that the operation is more complicated, therefore, the utility model provides a new solution. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problems that in the process of fusion, the construction personnel cannot directly observe the interface melting state, it is difficult to accurately judge whether the flowing melt completely fills the gap between the socket and the spigot, and the virtual welding and air inclusion defects may occur, affecting the sealing property of the interface, and in the process of fusion, the two pipes need to be fixed by the auxiliary support, so that the socket and the spigot do not move and fall off during the fusion process, and the auxiliary support needs to be removed after the fusion and cooling, so that the operation is more complicated, and provides a winding pipe.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] The winding pipe is used to improve the above-mentioned problems.

[0007] The utility model is specifically the following:

[0008] The utility model provides a pipe body, the outer wall of pipe body is equipped with spiral winding layer, both ends of pipe body are fixedly connected with socket and spigot respectively, the outer wall of spigot is equipped with electrically fused net belt, the outer wall of socket is equipped with the first recess groove corresponding with the fusing site, the inside of first recess groove is equipped with annular heat -sensitive color layer, the outside of heat -sensitive color layer is equipped with transparent protective film that installs in the inside of first recess groove, the outer wall of socket is fixedly connected with the inside limiting sleeve in the side of first recess groove, the outer wall of spigot is fixedly connected with the outside limiting sleeve that can be connected with inside limiting sleeve, a plurality of evenly distributed bolts are installed on the outside limiting sleeve.

[0009] As the preferred technical scheme of the utility model, the outer wall of the inside limiting sleeve is fixedly connected with a clamping block, the clamping block can be provided as an annular structure or a plurality of independent structures distributed in a ring shape, and the inner wall of the outside limiting sleeve is provided with a clamping groove matched with the clamping block.

[0010] As the preferred technical scheme of the utility model, the end of the outside limiting sleeve is provided with a stepped mounting hole matched with the bolt, and the end of the clamping block is provided with a plurality of screw holes matched with the bolt.

[0011] As the preferred technical scheme of the utility model, the winding layer comprises an outer wall fixedly connected to the outer wall of the pipe body, and a support rib fixedly connected to the inside of the outer wall, and a plurality of uniformly distributed reinforcing core wires embedded in the inside of the support rib.

[0012] As the preferred technical scheme of the utility model, the outer wall of the spigot is provided with a second recess groove matched with the electrically fused net belt, and the second recess groove is provided with a third recess groove and a fourth clamping groove provided in the outer wall of the spigot.

[0013] As the preferred technical scheme of the utility model, the inside of the third recess groove is mounted with a sealing ring, the fourth clamping groove is fixedly mounted with a water-soluble film, and the water-soluble film and the fourth clamping groove are filled with pigment powder.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] In the scheme of the utility model:

[0016] 1. Through the setting of the first groove, the heat-sensitive color developing layer and the protective film, when the electrically fused mesh belt is powered to be heated and fused, the flowing molten pulp can change the color of the heat-sensitive color developing layer through its heat, and the range of the molten pulp flowing in the fusion area and the change of the temperature in the fusion area can be known by observing the color changing range and the continuity of the color changing area, so that the construction personnel can directly judge whether the molten pulp of the fusion surface completely fills the gap between the socket and the spigot, and the hidden troubles such as false welding and air trapping are significantly reduced, and through the setting of the protective film, the heat-sensitive color developing layer can be protected while avoiding affecting the construction personnel to observe the color developing condition of the heat-sensitive color developing layer;

[0017] 2. Through the setting of the outer limiting sleeve, the inner limiting sleeve and the bolt, the inner limiting sleeve can be inserted into the inner part of the outer limiting sleeve to form mechanical interlocking of the socket and the spigot during the butt joint of the two pipe bodies, and if the butt joint effect of the two pipe bodies is not good, the connected outer limiting sleeve and inner limiting sleeve can also be conveniently disassembled and adjusted, and after the adjustment is completed, the outer limiting sleeve and the inner limiting sleeve are locked and connected through the bolt, so that the displacement of the outer limiting sleeve and the inner limiting sleeve during the fusion process can be avoided, the locking between the socket and the spigot can be realized without using additional fixing supports during the whole fusion process, and the operation steps and tool dependence during butt joint are reduced;

[0018] 3. The outer limiting sleeve and the inner limiting sleeve connected through the bolt can also strengthen the interface of the socket and the spigot during use, and can share the stress of the interface of the socket and the spigot when the soil at the bottom of the pipeline settles or is bent and deformed by external load, so that the cracking and water seepage of the interface due to the bending deformation of the whole pipeline can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The overall structure schematic view of the winding pipe is provided for the utility model;

[0020] Figure 2 The sectional view of the winding pipe is provided for the utility model;

[0021] Figure 3 The winding pipe is provided for the utility model Figure 2 The structure enlarged view of A place of the winding pipe;

[0022] Figure 4 The structure enlarged view of B place of the winding pipe Figure 2 is provided for the utility model;

[0023] Figure 5 The structure enlarged view of C place of the winding pipe Figure 2 is provided for the utility model;

[0024] Figure 6 The structure enlarged view of D place of the winding pipe Figure 2 is provided for the utility model.

[0025] Indicated in the figure:

[0026] 1, pipe body; 2, winding layer; 3, socket; 4, spigot; 5, outer limiting sleeve; 6, inner limiting sleeve; 7, electrically fused mesh belt; 8, sealing ring; 9, pigment powder; 10, water-soluble film; 11, protective film; 12, heat-sensitive color developing layer; 13, bolt; 14, first groove; 15, second groove; 16, third groove; 17, clamping groove; 18, mounting hole; 19, threaded hole; 20, clamping block; 21, fourth clamping groove; 201, outer wall; 202, supporting rib; 203, reinforcing core wire. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments.

[0028] As Figures 1-6The embodiment shown provides a winding pipe, which comprises a pipe body 1, an outer wall of the pipe body 1 is provided with a spiral winding layer 2, two ends of the pipe body 1 are respectively fixedly connected with a socket 3 and a spigot 4, an outer wall of the spigot 4 is provided with an electrically fused mesh belt 7, an outer wall of the socket 3 is provided with a first groove 14 corresponding to a fusion position, an inner part of the first groove 14 is provided with an annular heat-sensitive color developing layer 12, the heat-sensitive color developing layer 12 can be heat-sensitive paint or heat-sensitive paper, a width of the heat-sensitive color developing layer 12 is greater than a width of the electrically fused mesh belt 7, an outer side of the heat-sensitive color developing layer 12 is provided with a transparent protective film 11 installed in the inner part of the first groove 14, through the first groove 14, the heat-sensitive color developing layer 12 and the protective film 11, when the electrically fused mesh belt 7 is powered and heated for fusion, flowing molten pulp can change the color of the heat-sensitive color developing layer 12 through its own heat, and the range of the molten pulp flowing in the fusion area and the temperature change of the fusion area can be known by observing the color change range and the continuity of the color change area, so that a construction worker can directly judge whether the molten pulp of the fusion surface completely fills the gap between the socket and the spigot, thereby significantly reducing hidden troubles such as false welding and air trapping, through the setting of the protective film 11, the heat-sensitive color developing layer 12 can be protected while avoiding affecting the construction worker to view the color developing condition of the heat-sensitive color developing layer 12; an outer wall of the socket 3 is fixedly connected with an inner limiting sleeve 6 located on one side of the first groove 14, an outer wall of the spigot 4 is fixedly connected with an outer limiting sleeve 5 which can be clamped and connected with the inner limiting sleeve 6, a plurality of uniformly distributed bolts 13 are installed on the outer limiting sleeve 5, through the setting of the outer limiting sleeve 5, the inner limiting sleeve 6 and the bolts 13, the inner limiting sleeve 6 can be inserted into the inner part of the outer limiting sleeve 5 to form mechanical interlocking of the socket 3 and the spigot 4 during the butt joint of the two pipe bodies 1, if the butt joint effect of the two pipe bodies 1 is not good, the clamped and connected outer limiting sleeve 5 and the inner limiting sleeve 6 can also be conveniently disassembled and adjusted, after the adjustment is completed, the outer limiting sleeve 5 and the inner limiting sleeve 6 are locked and connected through the bolts 13, so that the outer limiting sleeve 5 and the inner limiting sleeve 6 cannot be displaced during the fusion process, the locking between the socket 3 and the spigot 4 can be realized without using an additional fixing support during the whole fusion process, thereby reducing the operation steps and tool dependence during the butt joint, and the outer limiting sleeve 5 and the inner limiting sleeve 6 connected through the bolts 13 can also strengthen the interface between the socket 3 and the spigot 4, when the pipeline bottom soil is settled or is bent and deformed due to external load, the stress at the interface between the socket 3 and the spigot 4 can be shared, thereby avoiding the cracking and water seepage at the interface due to the bending deformation of the whole pipeline.

[0029] As Figures 3-5As shown, in a preferred embodiment, based on the above method, a locking block 20 is further fixedly connected to the outer wall of the inner limiting sleeve 6. The locking block 20 can be configured as a ring structure or multiple independent structures distributed in a ring. The inner wall of the outer limiting sleeve 5 is provided with a slot 17 that cooperates with the locking block 20. It should be noted that the locking block 20 and the slot 17 facilitate the locking and connection between the outer limiting sleeve 5 and the inner limiting sleeve 6.

[0030] like Figures 3-5 As shown, in a preferred embodiment, based on the above method, the outer limiting sleeve 5 has a stepped mounting hole 18 through which it engages with the bolt 13, and the end of the locking block 20 has multiple screw holes 19 that engage with the bolt 13. It should be noted that the mounting hole 18 and screw holes 19 facilitate the connection between the bolt 13 and the outer limiting sleeve 5 and the inner limiting sleeve 6 by passing through the outer limiting sleeve 5.

[0031] like Figure 1 , Figure 2 and Figure 6 As shown, in a preferred embodiment, based on the above method, the winding layer 2 further includes an outer wall 201 fixedly connected to the outer wall of the tube body 1, a support rib 202 fixedly connected inside the outer wall 201, and multiple evenly distributed reinforcing core wires 203 embedded inside the support rib 202. It should be noted that the outer wall 201 and the support rib 202 improve the overall compressive strength of the tube body 1, and the reinforcing core wires 203 enhance the overall strength of the outer wall 201 and the support rib 202.

[0032] like Figure 4 As shown, in a preferred embodiment, based on the above method, a second groove 15 is further provided on the outer wall of the socket 4 to cooperate with the electrofusion mesh belt 7. A third groove 16 and a fourth slot 21 are provided on one side of the second groove 15 on the outer wall of the socket 4. It should be noted that if there are two third grooves 16, the fourth slot 21 is located between the two third grooves 16; if there is only one third groove 16, the fourth slot 21 is located between the third groove 16 and the second groove 15. The second groove 15 facilitates the installation of the electrofusion mesh belt 7, and the third groove 16 facilitates the installation of the sealing ring 8.

[0033] like Figure 3 and Figure 4As shown, as a preferred embodiment, on the basis of the above mode, further, the third groove 16 is internally mounted with a sealing ring 8, the number of the third groove 16 and the sealing ring 8 can be set to one or two, the fourth clamping groove 21 is internally fixedly mounted with a water-soluble film 10, and the water-soluble film 10 and the fourth clamping groove 21 are filled with pigment powder 9. It should be noted that, through the setting of the sealing ring 8, the sealing performance of the joint of the socket 3 and the spigot 4 can be improved, in the case that there is a gap in the fusion surface, the sealing ring 8 can block the water flow, and when the water seeps out through the fusion surface of the sealing ring 8 and the socket 3 and the spigot 4 during use, the flowing water flow will make the water-soluble film 10 dissolve, and the pigment powder 9 will enter the water flow after the water-soluble film 10 dissolves, and the dyed water flow will discolor the interface of the socket 3 and the spigot 4 and the soil near the interface, so that the maintenance personnel can find the position of the water seepage.

[0034] Specifically, the working principle of the present winding pipe is as follows: when performing fusion, the spigot 4 on one pipe body 1 is inserted into the socket 3 in another pipe body 1, the outer limiting sleeve 5 and the inner limiting sleeve 6 are clamped and connected when the spigot 4 is completely inserted into the socket 3, preventing the socket 3 and the spigot 4 from being separated, then the outer limiting sleeve 5 and the inner limiting sleeve 6 are secondarily fixed through the bolt 13, after the fixation is completed, the terminal of the electric melting mesh belt 7 is welded and connected to make it heat and fuse the socket 3 and the spigot 4, when heating and fusing, the flowing molten slag will change the color of the heat-sensitive color developing layer 12 through its own heat, and the range of the color change of the heat-sensitive color developing layer 12 and the continuity of the color change area can be known to know the range of the molten slag flowing in the fusion area and the temperature change of the fusion area, if the color developing range of the heat-sensitive color developing layer 12 is discontinuous, it can be known that there may be a problem of a broken joint or air inclusion in the fusion surface, if the color developing range of the heat-sensitive color developing layer 12 is narrow, it can be known that the molten slag flowing range of the fusion surface is small, and there may be a problem of a virtual weld between the socket 3 and the spigot 4.

[0035] The above embodiments are only used to illustrate the technical solutions described in the present application and not to limit the technical solutions described in the present application. Although the present application has been described in detail with reference to the above embodiments, the present application is not limited to the above specific embodiments, and any modification or equivalent replacement of the present application; and all technical solutions and improvements within the spirit and scope of the application are encompassed in the scope of the claims of the present application.

Claims

1. A spiral pipe comprising a pipe body (1), the outer wall of which is provided with a spiral winding layer (2), characterized in that, The both ends of the pipe body (1) are fixedly connected with the socket (3) and the spigot (4), respectively, the outer wall of the spigot (4) is provided with the electrically fused mesh belt (7), the outer wall of the socket (3) is provided with the first groove (14) corresponding to the fusion site, the inside of the first groove (14) is provided with the annular heat-sensitive color developing layer (12), the outside of the heat-sensitive color developing layer (12) is provided with the transparent protective film (11) installed in the inside of the first groove (14), the outer wall of the socket (3) is fixedly connected with the inner limiting sleeve (6) located at one side of the first groove (14), the outer wall of the spigot (4) is fixedly connected with the outer limiting sleeve (5) which can be clamped and connected with the inner limiting sleeve (6), the outer limiting sleeve (5) is installed with the plurality of uniformly distributed bolts (13).

2. A pipe in a winding according to claim 1, characterized in that The outer wall of the inner limiting sleeve (6) is fixedly connected with the clamping block (20), the clamping block (20) can be provided as an annular structure or a plurality of independent structures distributed in a ring shape, the inner wall of the outer limiting sleeve (5) is provided with the clamping groove (17) matched with the clamping block (20).

3. A pipe in a coil according to claim 2, characterized in that The end of the outer limiting sleeve (5) is provided with the stepped mounting hole (18) matched with the bolt (13), the end of the clamping block (20) is provided with the plurality of screw holes (19) matched with the bolt (13).

4. A pipe wrap according to claim 1, wherein, The winding layer (2) comprises the outer wall (201) fixedly connected to the outer wall of the pipe body (1), the inside of the outer wall (201) is fixedly connected with the support rib (202), the inside of the support rib (202) is inlaid with the plurality of uniformly distributed reinforcing core wires (203).

5. A pipe wrap according to claim 1, wherein, The outer wall of the spigot (4) is provided with the second groove (15) matched with the electrically fused mesh belt (7), one side of the second groove (15) is provided with the third groove (16) and the fourth clamping groove (21) provided in the outer wall of the spigot (4).

6. A pipe in a winding according to claim 5, characterized in that The inside of the third groove (16) is installed with the sealing ring (8), the inside of the fourth clamping groove (21) is fixedly installed with the water-soluble film (10), the water-soluble film (10) and the fourth clamping groove (21) are filled with the pigment powder (9).

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