Electric hot melting sleeve for thermal insulation pipeline

Abstract

The utility model discloses an electric hot melting sleeve for a heat preservation pipeline, and relates to the technical field of electric hot melting sleeves, the electric hot melting sleeve comprises a hot melting sleeve main body, one surface of the hot melting sleeve main body is a hot melting surface, the hot melting sleeve main body can be curled to wrap a jacket pipe, and the hot melting surface is attached to the outer wall of the jacket pipe; one surface of the hot melting sleeve main body is provided with a hot melting part which is distributed in a U shape, two ends of the hot melting part are connected with leads, the hot melting sleeve main body is provided with a wiring hole, and the two leads penetrate through the wiring hole. Therefore, the problems are solved, air leakage along the lead is avoided, the connection air tightness is improved, and the fusion welding quality is improved.

Description

Technical Field

[0001] The present application relates to the technical field of electrofusion sleeves, and more particularly to an electrofusion sleeve for a heat-insulating pipeline. Background Art

[0002] An electrofusion sleeve is a connecting fitting in which a PE plate is subjected to mesh covering, bending, and coiling, and then connected to a jacket pipe through electrofusion. It is a new type of connecting fitting emerging in the anti-corrosion and heat-insulation industries in recent years and is widely used in the construction of heat-insulating pipeline networks. At present, in the actual use process, although it has high connection strength, corrosion resistance, aging resistance, and convenient and fast construction, there is a sealing problem. When the lead wire is connected to the power supply and the electrofusion mesh is heated to melt the plate, the electrofusion sleeve is welded to the outer wall of the jacket pipe to achieve joint repair. However, the lead wire of the electrofusion sleeve will not melt, and the lead wire extends out from the edge of the fusion sleeve, resulting in air leakage along the lead wire inside the electrofusion sleeve, reducing the welding quality, and thus unable to ensure the joint repair quality. Summary of the Utility Model

[0003] In order to solve the above problems, avoid air leakage along the lead wire, improve the connection airtightness, and improve the welding quality, the present application provides an electrofusion sleeve for a heat-insulating pipeline.

[0004] An electrofusion sleeve for a heat-insulating pipeline provided by the present application adopts the following technical solutions.

[0005] An electrofusion sleeve for a heat-insulating pipeline includes a fusion sleeve main body. One surface of the fusion sleeve main body is a fusion surface. The fusion sleeve main body can be curled and wrapped around the jacket pipe, and the fusion surface is attached to the outer wall of the jacket pipe.

[0006] On one surface of the fusion sleeve main body, fusion parts are arranged in a U-shaped distribution. Both ends of the fusion parts are connected with lead wires. A wiring hole is formed in the fusion sleeve main body, and the two lead wires penetrate through the wiring hole.

[0007] By adopting the above technical solutions, during use, the surface of the fusion sleeve main body with the fusion surface is curled and wrapped around the jacket pipe. The lead wires are externally connected to a power supply, and the fusion parts convert electrical energy into heat energy, welding the fusion sleeve main body and the outer wall of the jacket pipe together. And after the lead wires extend out from the wiring hole and the fusion sleeve main body and the outer wall of the jacket pipe are melted and welded together, there will be no more air leakage, improving the airtightness.

[0008] Optionally, the opening of the fusion parts arranged in a U-shaped distribution is closed.

[0009] By adopting the above technical solutions, the closed opening of the fusion parts is beneficial to increasing the electro-heatable fusion amount and also beneficial to improving the heat melting efficiency and ensuring the fusion welding quality.

[0010] Optionally, the two lead wires are respectively connected to the inner sides of the closed ends of the fusion parts.

[0011] By adopting the above technical solution, the lead wire is connected to the inner side of the closing part of the hot-melt part, so that the edges of the hot-melt part and the main body of the hot-melt sleeve are complete. The lead wire does not affect the hot-melt welding quality of the edge of the main body of the hot-melt sleeve, ensuring the sealing performance and preventing air leakage.

[0012] Optionally, two wiring holes are provided, and two lead wires respectively penetrate through the two wiring holes.

[0013] By adopting the above technical solution, the two wiring holes can enable the two lead wires to pass through the main body of the hot-melt sleeve. At the same time, the wiring holes are not at the edge of the main body of the hot-melt sleeve, ensuring the sealing performance after hot melting.

[0014] Optionally, a limiting part is provided at the end of the lead wire after passing through the wiring hole. The size of the limiting part is larger than the size of the wiring hole, and the limiting part includes a wiring terminal.

[0015] By adopting the above technical solution, through the setting of the limiting part, the lead wire is prevented from falling off from the wiring hole, that is, the lead wire does not penetrate through the wiring hole and is all located on one side of the main body of the hot-melt sleeve, and it can be directly used, avoiding unnecessary troubles during use. The setting of the wiring terminal not only prevents the lead wire from falling off from the wiring hole, but also facilitates the connection of the lead wire.

[0016] Optionally, a guiding part is provided on the hot-melt surface, and the lead wire on one side of the main body of the hot-melt sleeve is arranged in the guiding part.

[0017] By adopting the above technical solution, through the setting of the guiding part, the lead wire is guided and limited, preventing the lead wire from running around, and even preventing the two lead wires from touching each other and causing a short circuit.

[0018] Optionally, the hot-melt part is an electrothermal melting net.

[0019] Optionally, the main body of the hot-melt sleeve is rectangular, and the main body of the hot-melt sleeve is made of polyethylene material.

[0020] By adopting the above technical solution, the polyethylene material has a low melting point and good chemical stability.

[0021] Optionally, the hot-melt part is distributed at the edge position of the main body of the hot-melt sleeve.

[0022] Optionally, one end of the main body of the hot-melt sleeve corresponding to the opening direction of the hot-melt part is the lead wire end, and the other end of the main body of the hot-melt sleeve is the covering melting end. When the main body of the hot-melt sleeve is curled and wrapped on the jacket pipe, the two ends of the main body of the hot-melt sleeve overlap, and the covering melting end overlaps on the lead wire end.

[0023] By adopting the above technical solution, the melting end overlaps on the lead end. When the melting part is energized and heated, the melting part of the melting end fits with the outer surface of the lead melting part and melts together to achieve fusion welding and form a sleeve shape, so that the main body of the heat-melting sleeve firmly wraps around the jacket pipe.

[0024] In summary, the present application at least includes the following beneficial effects:

[0025] 1. When the present application is in use, the side of the main body of the heat-melting sleeve with the heat-melting surface is curled and wrapped around the jacket pipe. The lead is externally connected to a power supply, and the melting part converts electrical energy into heat energy to weld the main body of the heat-melting sleeve and the outer wall of the jacket pipe together. After the lead extends out from the wiring hole and the main body of the heat-melting sleeve and the outer wall of the jacket pipe are melted and welded together, there will be no air leakage anymore, improving the sealing performance.

[0026] 2. The opening and closing settings of the melting part of the present application are beneficial to increasing the electrically heatable melting amount and also beneficial to improving the heat melting efficiency and ensuring the quality of fusion welding.

[0027] 3. Through the setting of the limiting part, the lead can be prevented from falling off from the wiring hole, that is, the lead does not penetrate the wiring hole and is all located on one side of the main body of the heat-melting sleeve, and it can be directly used, avoiding unnecessary troubles during use. The setting of the wiring terminal can prevent the lead from falling off from the wiring hole and is also convenient for connecting the lead. Through the setting of the guiding part, it plays a guiding and limiting role for the lead, preventing the lead from running around, and even preventing two leads from touching each other and causing a short circuit.

[0028] 4. The melting end of the present application overlaps on the lead end. When the melting part is energized and heated, the melting part of the melting end fits with the outer surface of the lead melting part and melts together to achieve fusion welding and form a sleeve shape, so that the main body of the heat-melting sleeve firmly wraps around the jacket pipe. Description of the Drawings

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0030] Figure 1 It is a schematic structural diagram of an electrothermal melting sleeve for a heat-insulating pipeline in Embodiment 1.

[0031] Figure 2 It is a schematic structural diagram of another perspective of an electrothermal melting sleeve for a heat-insulating pipeline in Embodiment 1.

[0032] Figure 3 It is a schematic structural diagram of the reverse side of an electrothermal melting sleeve for a heat-insulating pipeline in Embodiment 1.

[0033] Figure 4 It is a front - view structural schematic diagram of an electro - thermal sleeve for a heat - insulating pipeline in the first embodiment.

[0034] Figure 5 It is a schematic diagram after the electro - thermal sleeve for a heat - insulating pipeline in the first embodiment is curled.

[0035] Figure 6 It is a structural schematic diagram of an electro - thermal sleeve for a heat - insulating pipeline in the second embodiment.

[0036] Figure 7 It is a structural schematic diagram of an electro - thermal sleeve for a heat - insulating pipeline in the third embodiment.

[0037] Explanation of reference numerals: 1. Main body of the electro - thermal sleeve; 2. Electro - thermal part; 3. Lead wire; 4. Wiring hole; 5. Lead - wire end; 6. Over - melting end; 7. Wiring terminal; 8. Raised strip. Detailed implementation manners

[0038] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0039] The following combines the attached Figures 1 to 7 This application will be further described in detail.

[0040] The embodiment of this application discloses an electro - thermal sleeve for a heat - insulating pipeline.

[0041] Embodiment 1

[0042] Referring to Figures 1 to 5 , an electro - thermal sleeve for a heat - insulating pipeline includes:

[0043] The main body 1 of the electro - thermal sleeve is in a rectangular sheet shape and is made of polyethylene material. The polyethylene material has a low melting point and good chemical stability.

[0044] One side of the main body 1 of the electro - thermal sleeve is the electro - thermal surface, that is, the reverse side. The main body 1 of the electro - thermal sleeve can be curled to wrap around the jacket pipe, and the electro - thermal surface is attached to the outer wall of the jacket pipe. [[ID=4…]]

[0045] At the edge position of one side of the main body 1 of the electro - thermal sleeve, the electro - thermal parts 2 are arranged in a U - shape. The electro - thermal parts 2 are electro - thermal meshes. The opening of the electro - thermal parts 2 arranged in a U - shape is closed. The closed setting is beneficial to increasing the electro - heat - melting amount and also beneficial to improving the heat - melting efficiency and ensuring the quality of electro - thermal welding.

[0046] Leads 3 are connected to both ends of the hot-melt part 2, and the two leads 3 are respectively connected to the inner side of the closing part of the hot-melt part 2. The leads 3 are connected to the inner side of the closing part of the hot-melt part 2, so that the edges of the hot-melt part 2 and the main body 1 of the hot-melt sleeve are complete. The leads 3 do not affect the hot-melt welding quality of the edge of the main body 1 of the hot-melt sleeve, ensuring the sealing performance and preventing air leakage.

[0047] Two wiring holes 4 are provided on the main body 1 of the hot-melt sleeve. The two leads 3 pass through the wiring holes 4 from one side of the main body 1 of the hot-melt sleeve to the other side. The provision of the two wiring holes 4 enables the two leads 3 to pass through the main body 1 of the hot-melt sleeve. At the same time, the wiring holes 4 are not at the edge of the main body 1 of the hot-melt sleeve, ensuring the sealing performance after hot melting.

[0048] One end of the main body 1 of the hot-melt sleeve corresponding to the opening direction of the hot-melt part 2 is the lead end 5, and the other end of the main body 1 of the hot-melt sleeve is the covering melting end 6. When the main body 1 of the hot-melt sleeve is curled and wrapped around the jacket pipe, the two ends of the main body 1 of the hot-melt sleeve overlap, and the covering melting end 6 overlaps on the lead end 5. When the covering melting end 6 overlaps on the lead end 5, when the hot-melt part 2 is energized and heated, the hot-melt part 2 of the covering melting end 6 fits with the outer surface of the lead melting part and melts together to achieve fusion welding, forming a sleeve shape, and further enabling the main body 1 of the hot-melt sleeve to firmly wrap around the jacket pipe.

[0049] During use, the side of the main body 1 of the hot-melt sleeve that is the hot-melt surface is curled and wrapped around the jacket pipe. The lead 3 is connected to an external power supply. The hot-melt part 2 converts electrical energy into heat energy, fusing the main body 1 of the hot-melt sleeve and the outer wall of the jacket pipe together. And after the lead 3 extends out from the wiring hole 4 and the main body 1 of the hot-melt sleeve and the outer wall of the jacket pipe are melted and welded together, there will be no more air leakage, improving the sealing performance.

[0050] Embodiment 2

[0051] Refer to Figures 1 to 6 , including all the content of Embodiment 1, further including:

[0052] A limiting part with a size larger than that of the wiring hole 4 is provided at the lead end 5 part after passing through the wiring hole 4. The limiting part is a wiring terminal 7. Through the provision of the limiting part, it is prevented that the lead 3 falls off from the wiring hole 4, that is, the lead 3 does not pass through the wiring hole 4 and is all located on one side of the main body 1 of the hot-melt sleeve, and it can be directly used, avoiding unnecessary trouble during use. The provision of the wiring terminal 7 not only avoids the lead 3 falling off from the wiring hole 4 but also facilitates the connection of the lead 3.

[0053] Embodiment 3

[0054] Refer to Figures 1 to 5 、7, including all the content of Embodiment 1, further including:

[0055] A guiding portion is provided on the heat-melting surface. The guiding portion is a raised strip 8, and a groove is formed along the length direction on the raised strip 8. The lead wire 3 on one side of the heat-melting sleeve body 1 is stuck in the groove. Through the arrangement of the guiding portion, a guiding and limiting effect is exerted on the lead wire 3, preventing the lead wire 3 from running around, and even preventing the two lead wires 3 from touching each other to cause a short circuit.

[0056] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "end portion", "one end", "the other end", "one side", "the other side", "both ends", "inner side", etc. is based on the orientation or positional relationship shown in the drawings, and 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, and therefore should not be construed as a limitation to the present utility model. In the description of the present utility model, unless otherwise specified and defined, it should be noted that the term "connection" should be understood in a broad sense. For example, it may be a mechanical connection or an electrical connection, or it may be the communication inside two elements. It may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific situations.

[0057] The above are only the preferred embodiments of the utility model, and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A hot melt sleeve for a heat-insulating pipeline, characterized in that, It includes a hot-melt sleeve body, one side of the hot-melt sleeve body is a hot-melt surface, the hot-melt sleeve body can be curled and wrapped around the jacket pipe, and the hot-melt surface is attached to the outer wall of the jacket pipe; One side of the hot-melt sleeve body is provided with hot-melt parts arranged in a U-shaped distribution, both ends of the hot-melt parts are connected with leads, a wiring hole is opened on the hot-melt sleeve body, and the two leads penetrate through the wiring hole.

2. The electrothermal sleeve for a heat-insulating pipeline according to claim 1, wherein The opening of the hot-melt part arranged in a U-shaped distribution is closed.

3. The electrothermal sleeve for a heat-insulating pipeline according to claim 2, wherein, The two leads are respectively connected to the inner sides of the closed ends of the hot-melt part.

4. A hot melt sleeve for a heat-insulating pipeline according to claim 1, characterized in that, Two wiring holes are opened, and the two leads respectively penetrate through the two wiring holes.

5. The electrothermal sleeve for a heat-insulating pipeline according to claim 1, wherein, A limiting part is arranged at the end of the lead after passing through the wiring hole, the size of the limiting part is larger than the size of the wiring hole, and the limiting part includes a wiring terminal.

6. The electrothermal sleeve for a heat-insulating pipeline according to claim 1, wherein A guiding part is arranged on the hot-melt surface, and the leads on one side of the hot-melt sleeve body are arranged in the guiding part.

7. The electrothermal sleeve for a heat-insulating pipeline according to claim 1, wherein The hot-melt part is an electrothermal melting net.

8. The electrothermal sleeve for a heat-insulating pipeline according to claim 1, wherein The hot-melt sleeve body is rectangular, and the hot-melt sleeve body is made of polyethylene material.

9. The electrothermal sleeve for a heat-insulating pipeline according to claim 8, wherein, The hot-melt parts are distributed at the edge position of the hot-melt sleeve body.

10. A hot melt sleeve for a heat-insulating pipeline according to claim 1, characterized in that, One end of the hot-melt sleeve body corresponding to the opening direction of the hot-melt part is the lead end, the other end of the hot-melt sleeve body is the covering melting end. When the hot-melt sleeve body is curled and wrapped around the jacket pipe, the two ends of the hot-melt sleeve body overlap, and the covering melting end overlaps on the lead end.

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