Hot-pressing electric hot melting sleeve

Abstract

The utility model discloses a hot-pressing electric hot melting sleeve which comprises an electric hot melting sleeve body, fixing rings are arranged at the left end and the right end of the interior of the electric hot melting sleeve body, connecting rods are arranged on one sides of the back faces of the two fixing rings, and a plurality of connecting rods are arranged in the circumferential direction relative to the fixing rings. Reinforcing rings are connected to the outer side ends of the multiple connecting rods on the same side, cross-shaped reinforcing bases are arranged in the two reinforcing rings, the electric hot melting sleeve body comprises an inner hot melting layer, a heating wire net and an outer hot melting layer which are sequentially arranged from inside to outside, a flame-retardant layer is arranged at the outer side end of the outer hot melting layer, and the flame-retardant layer is arranged at the outer side end of the outer hot melting layer. And through the design of the reinforcing ring, the reinforcing ring is connected and arranged on the fixing ring through the multiple connecting rods, supporting is reinforced while preliminary limiting is achieved for installation, and the installation stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of electrothermal fusion sleeve technology, and more specifically, it relates to a hot-pressed electrothermal fusion sleeve. Background Technology

[0002] Hot melt sleeves are a type of connecting pipe fitting that uses electrofusion to connect jacketed pipes together by covering PE sheets with mesh, bending, and rolling. Hot melt sleeves are a relatively new type of connecting pipe fitting in the corrosion protection and insulation industry in recent years. Their anti-aging properties, connection strength, and ring stiffness are significantly superior to heat shrinkable tapes. However, existing hot melt sleeves suffer from poor overall installation stability and lack suitable installation reinforcement mechanisms. Furthermore, their insulation performance is poor due to a lack of suitable insulation protection mechanisms. Additionally, the hot melt sleeves are easily damaged by external environmental factors during use, and their corrosion resistance and wear resistance need improvement. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the problems existing in the prior art, this utility model provides a thermo-pressed electrothermal fusion sleeve to solve the technical problems mentioned in the background art, such as poor overall external installation stability and lack of suitable installation reinforcement mechanism.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hot-pressed electrofusion sleeve, comprising an electrofusion sleeve body, wherein fixed rings are provided at both the left and right ends of the electrofusion sleeve body, and connecting rods are provided on the opposite side of the two fixed rings. Multiple connecting rods are provided in the circumferential direction relative to the fixed rings, and reinforcing rings are connected to the outer ends of the multiple connecting rods on the same side. Cross-shaped reinforcing seats are provided inside the two reinforcing rings. The electrofusion sleeve body includes an inner hot-melt layer, a heating wire mesh, and an outer hot-melt layer, which are arranged sequentially from the inside to the outside. A flame-retardant layer is provided at the outer end of the outer hot-melt layer.

[0007] The present invention is further configured such that the flame-retardant layer includes a first protective layer and a second protective layer, wherein the first protective layer is disposed on the inner end of the second protective layer to improve the flame-retardant effect.

[0008] The present invention is further provided with an anti-corrosion layer at the outer end of the flame retardant layer and a wear-resistant layer at the outer end of the anti-corrosion layer, thereby improving the anti-corrosion and wear-resistant effects.

[0009] The present invention is further configured such that wear-resistant protrusions are provided on the outer end of the wear-resistant layer, and multiple wear-resistant protrusions are provided in the circumferential direction relative to the wear-resistant layer, thereby further improving the wear resistance effect.

[0010] The present invention is further configured such that the heating wire mesh is provided with through grooves, and multiple through grooves are provided, each of which is provided with a heat preservation mechanism to improve the heat preservation effect.

[0011] The present invention is further configured such that the heat preservation mechanism includes a first heat preservation layer, a fiber reinforcement layer and a second heat preservation layer, wherein the first heat preservation layer, the fiber reinforcement layer and the second heat preservation layer are arranged sequentially from the inside to the outside, so as to achieve efficient heat preservation while improving internal strength.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, this utility model provides a hot-pressed electrofusion sleeve, which has the following beneficial effects:

[0014] 1. Through the design of the reinforcing ring, which is connected to the fixed ring by multiple connecting rods, the installation is initially limited while strengthening the support and improving the stability of the installation.

[0015] 2. Through the design of the anti-corrosion layer and the wear-resistant layer, the anti-corrosion layer is made of perfluoropolyether coating, and the wear-resistant layer and wear-resistant protrusions are made of polyurethane coating, which provides overall anti-corrosion and wear-resistant protection and extends service life.

[0016] 3. Through the design of the insulation mechanism, the insulation layer in the multiple slots of the heating wire mesh not only provides insulation and protection for the whole structure, but also further improves the overall strength. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of a preferred thermo-pressed electrothermal fusion sleeve;

[0018] Figure 2 A schematic diagram of a preferred mating structure of a hot-press electrofusion sleeve, comprising a fixing ring, a connecting rod, a reinforcing ring, and a cross-shaped reinforcing seat;

[0019] Figure 3 An exploded cross-sectional view of the internal structure of a preferred electrothermal fusion sleeve body for hot pressing;

[0020] Figure 4 Exploded cross-sectional view of the internal structure of a preferred flame-retardant layer in a thermoplastic electrothermal fusion sleeve;

[0021] Figure 5 An exploded cross-sectional view of the internal structure of a preferred insulation mechanism for a thermoplastic electrothermal fusion sleeve.

[0022] In the diagram: 1. Electrofusion sleeve body; 2. Fixing ring; 3. Connecting rod; 4. Reinforcing ring; 5. Cross-shaped reinforcing seat; 6. Inner heat-fusion layer; 7. Heating wire mesh; 8. Outer heat-fusion layer; 9. Flame-retardant layer; 10. First protective layer; 11. Second protective layer; 12. Corrosion-resistant layer; 13. Wear-resistant layer; 14. Wear-resistant protrusion; 15. Through groove; 16. First insulation layer; 17. Fiber reinforcement layer; 18. Second insulation layer. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0025] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0026] Please see Figures 1-3 A thermoforming electrofusion sleeve includes an electrofusion sleeve body 1. The electrofusion sleeve body 1 has fixing rings 2 at both its left and right ends. Each fixing ring 2 has a connecting rod 3 on one side opposite to the other. Multiple connecting rods 3 are arranged in the circumferential direction relative to the fixing rings 2. Reinforcing rings 4 are connected to the outer ends of the multiple connecting rods 3 on the same side. Cross-shaped reinforcing seats 5 are provided inside each of the two reinforcing rings 4. The electrofusion sleeve body 1 includes an inner thermofusion layer 6, a heating wire mesh 7, and an outer thermofusion layer 8. The inner thermofusion layer 6, heating wire mesh 7, and outer thermofusion layer 8 are arranged sequentially from the inside to the outside. A flame-retardant layer 9 is provided at the outer end of the outer thermofusion layer 8.

[0027] In this embodiment, the reinforcing ring 4 and the fixing ring 2 are connected by a connecting rod 3. The reinforcing ring 4 provides initial positioning for the installation, and the reinforcing ring 4 with the cross-shaped reinforcing seat 5 provides reinforcement for the installation.

[0028] More specifically, the flame-retardant layer 9 provides flame-retardant protection for the electrothermal fusion sleeve body 1.

[0029] Please see Figure 4 As one embodiment of the flame retardant layer 9: the flame retardant layer 9 includes a first protective layer 10 and a second protective layer 11, with the first protective layer 10 disposed on the inner end of the second protective layer 11.

[0030] Specifically, the first protective layer 10 is preferably made of halophosphate material, and the second protective layer 11 is preferably made of fluorocarbon resin material to improve the flame retardant effect.

[0031] Please see Figure 3 As an implementation method for corrosion resistance and wear resistance: an anti-corrosion layer 12 is provided at the outer end of the flame retardant layer 9, a wear-resistant layer 13 is provided at the outer end of the anti-corrosion layer 12, and a wear-resistant protrusion 14 is provided at the outer end of the wear-resistant layer 13. Multiple wear-resistant protrusions 14 are provided in the circumferential direction relative to the wear-resistant layer 13.

[0032] Specifically, the anti-corrosion layer 12 is preferably made of perfluoropolyether coating, and the wear-resistant layer 13 and wear-resistant protrusions 14 are preferably made of polyurethane coating, so as to improve the overall anti-corrosion and wear-resistant effect during use and extend the service life.

[0033] Please see Figure 3 and Figure 5 As one implementation of heat preservation: the heating wire mesh 7 has through grooves 15, and multiple through grooves 15 are provided. Each through groove 15 is provided with a heat preservation mechanism. The heat preservation mechanism includes a first heat preservation layer 16, a fiber reinforcement layer 17, and a second heat preservation layer 18. The first heat preservation layer 16, the fiber reinforcement layer 17, and the second heat preservation layer 18 are arranged sequentially from the inside to the outside.

[0034] Specifically, the first insulation layer 16 and the second insulation layer 18 inside the through groove 15 work together to achieve a protective effect on the whole, and the fiber reinforcement layer 17 further improves the internal strength.

[0035] In summary, the overall equipment is in use:

[0036] During the initial installation, the reinforcing ring 4 is installed to correspond to the external pipeline. The reinforcing ring 4 is fixedly connected to the outer end of the fixed ring 2 by the connecting rod 3. The internal cross-shaped reinforcing seat 5 provides reinforcement support for the reinforcing ring 4, thereby achieving overall reinforcement support and improving installation stability.

[0037] When in a corrosion-resistant and wear-resistant protective state, the corrosion-resistant layer 12 is preferably made of perfluoropolyether coating, and the wear-resistant layer 13 and wear-resistant protrusions 14 are preferably made of polyurethane coating, so as to improve the overall corrosion resistance and wear resistance during use and extend the service life.

[0038] When in flame-retardant protection mode, the first protective layer 10 is preferably made of halophosphate material, and the second protective layer 11 is preferably made of fluorocarbon resin material to improve the flame-retardant effect.

[0039] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A thermoforming electrofusion sleeve, comprising an electrofusion sleeve body (1), characterized in that: The electrothermal fusion sleeve body (1) is provided with fixing rings (2) at both the left and right ends. Each of the two fixing rings (2) is provided with a connecting rod (3) on the opposite side. Multiple connecting rods (3) are provided in the circumferential direction relative to the fixing rings (2). Reinforcing rings (4) are connected to the outer ends of multiple connecting rods (3) on the same side. Cross-shaped reinforcing seats (5) are provided inside the two reinforcing rings (4). The electrothermal fusion sleeve body (1) includes an inner heat fusion layer (6), a heating wire mesh (7) and an outer heat fusion layer (8). The inner heat fusion layer (6), the heating wire mesh (7) and the outer heat fusion layer (8) are arranged sequentially from the inside to the outside. A flame retardant layer (9) is provided at the outer end of the outer heat fusion layer (8).

2. The thermoforming electrofusion sleeve according to claim 1, characterized in that: The flame-retardant layer (9) includes a first protective layer (10) and a second protective layer (11), with the first protective layer (10) disposed on the inner end of the second protective layer (11).

3. The thermoforming electrofusion sleeve according to claim 1, characterized in that: The flame retardant layer (9) has an anti-corrosion layer (12) on its outer end, and the anti-corrosion layer (12) has a wear-resistant layer (13) on its outer end.

4. The thermoforming electrofusion sleeve according to claim 3, characterized in that: The wear-resistant layer (13) has wear-resistant protrusions (14) on its outer end, and multiple wear-resistant protrusions (14) are provided in the circumferential direction relative to the wear-resistant layer (13).

5. The thermoforming electrofusion sleeve according to claim 1, characterized in that: The heating wire mesh (7) has a through groove (15), and there are multiple through grooves (15). Each of the multiple through grooves (15) is equipped with a heat preservation mechanism.

6. The thermoforming electrofusion sleeve according to claim 5, characterized in that: The insulation mechanism includes a first insulation layer (16), a fiber reinforcement layer (17), and a second insulation layer (18), which are arranged sequentially from the inside to the outside.

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