Uniformly heated electrically heated bushing

Abstract

The utility model provides a kind of even heated electric heat melting cover, belong to electric heat melting cover technical field;Including electric heat melting cover body, still include connecting mechanism, the connecting mechanism includes the upper connecting band and lower connecting band fixed in the both ends of electric heat melting cover body, the length of upper connecting band and lower connecting band is less than the width of electric heat melting cover body, and connecting piece is provided on lower connecting band.The utility model is through setting upper connecting band, lower connecting band and connecting piece, before electric heat melting cover body connection, by connecting piece, lower connecting band is fixed on upper connecting band, realize the preliminary positioning of electric heat melting cover body, at this time, without using band to fix electric heat melting cover body, since the length of upper connecting band and lower connecting band is less than the width of electric heat melting cover body, electric heat melting cover body and heat preservation layer between can be fixed directly using hot melting gun, after fixing is completed, lower connecting band is removed from upper connecting band, the connecting place of electric heat melting cover body is fixed, convenient operation.

Description

Technical Field

[0001] This utility model relates to the field of electrothermal fusion sleeve technology, and in particular to a uniformly heated electrothermal fusion sleeve. Background Technology

[0002] The electrofusion sleeve is composed of high-density polyethylene (HDPE) sheet and a special electrothermal mesh embedded in the sheet. When not in use, it is flat. When in use, first clean the surface of the iron pipe and install the insulation layer. Then, wrap the electrofusion sleeve around the joint of the insulation layer, ensuring a tight fit between the electrofusion sleeve and the outer surface of the insulation layer. Next, connect the terminals of the electrofusion sleeve to a special welding device and energize it according to the set parameters, causing the electrothermal mesh inside the electrofusion sleeve to heat up. During the heating process, the electrothermal mesh can evenly heat one ring of the electrofusion sleeve, resulting in uniform heating of the HDPE sheet and firmly connecting the joint of the insulation layer. After cooling, it forms a sealed whole. Finally, expanding foam is injected inside to protect the insulation layer and prevent heat loss.

[0003] Before fixing the electrofusion sleeve, it is first wrapped around the surface of the insulation layer, and then the strap is connected to the surface of the insulation layer to fix the electrofusion sleeve. After fixing, the connection of the electrofusion sleeve is fixed with a hot melt gun. After fixing, the strap is removed, and the two ends of the electrofusion sleeve are fixed to the insulation layer again with a hot melt gun. In the fixing process, not only do multiple people need to cooperate, but the strap also needs to be adjusted multiple times during the fixing process, which is cumbersome. Therefore, this application provides a uniformly heated electrofusion sleeve to meet the requirements. Utility Model Content

[0004] This invention provides a uniformly heated electrofusion sleeve to solve the problem of cumbersome installation of electrofusion sleeves.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A uniformly heated electrofusion sleeve includes an electrofusion sleeve body and a connecting mechanism. The connecting mechanism includes an upper connecting strip and a lower connecting strip fixed at both ends of the electrofusion sleeve body. The length of the upper connecting strip and the lower connecting strip is less than the width of the electrofusion sleeve body. A connector is provided on the lower connecting strip. Before the electrofusion sleeve body is connected, the lower connecting strip is fixed to the upper connecting strip by the connector to achieve the initial positioning of the electrofusion sleeve body.

[0007] Preferably, the upper connecting strip has a tear opening at one end near the electrothermal sleeve body. After the electrothermal sleeve body is initially sealed on both sides, the upper connecting strip is torn off through the tear opening.

[0008] Preferably, the lower connecting strip has a tear opening two at one end away from the electrothermal sleeve body, and the lower connecting strip forms a connecting part and a tearing part through the tear opening two, with the connecting part fixed to the surface of the electrothermal sleeve body.

[0009] Preferably, the connector consists of several hooks and hanging holes. The hooks are fixed to the end of the tear-off part, and the hanging holes are opened on the upper connecting strip. Before the electrothermal sleeve body is connected, the hooks are hung in the hanging holes.

[0010] Preferably, the end of the upper connecting strip is integrally formed with a winding portion.

[0011] Preferably, a pull ring is fixed to the surface of the upper connecting strip.

[0012] Preferably, a pull ring 2 is fixed on the surface of the tearing part, and two pull ring 2 are provided in total, which are symmetrically arranged about the middle of the tearing part.

[0013] Preferably, the connection of the electrothermal sleeve body is provided with a serrated surface, and when the electrothermal sleeve body is fixed, the two serrated surfaces fit together.

[0014] Compared with the prior art, this utility model has at least the following beneficial effects:

[0015] In the above solution, by setting up an upper connecting strap, a lower connecting strap, and a connector, before connecting the electrothermal sleeve body, the lower connecting strap is fixed to the upper connecting strap using the connector to achieve initial positioning of the electrothermal sleeve body. At this time, there is no need to use a strap to fix the electrothermal sleeve body. Since the length of the upper and lower connecting straps is less than the width of the electrothermal sleeve body, the electrothermal sleeve body and the insulation layer can be fixed directly using a hot melt gun. After fixing, the lower connecting strap is removed from the upper connecting strap to fix the connection point of the electrothermal sleeve body, making the operation convenient.

[0016] By setting tear-out 1, tear-out 2, connecting part, and tear-off part, after the end of the electrothermal sleeve body is fixed, the upper connecting strip and connecting part can be torn off through tear-out 1 and tear-out 2 to achieve quick release of the lower connecting strip. Then, the connection of the electrothermal sleeve body can be fixed, further improving the convenience of operation. Secondly, after the connection of the electrothermal sleeve body is fixed, the connecting part is flipped upward and attached to the connection of the electrothermal sleeve body. Then, the connecting part is fixed to the connection of the electrothermal sleeve body to achieve secondary sealing of the connection of the electrothermal sleeve body, thereby improving the sealing performance of the electrothermal sleeve body during use.

[0017] By setting up a winding section, the end of the upper connecting strip is supported away from the electrothermal sleeve body. When the hook needs to be hung inside the hanging hole, the upper connecting strip needs to be removed, which further improves the convenience of operation.

[0018] By setting pull ring one and pull ring two, when tearing the upper connecting strip and the tear-off part, you can put your fingers inside pull ring one and pull ring two to provide a point of force for your fingers, making it easier to tear off the upper connecting strip and the tear-off part, and making the operation more effortless. Secondly, when hooking the hook of the lower connecting strip inside the hanging hole, you can put your fingers inside the two pull rings two to achieve quick hooking of the lower connecting strip.

[0019] By setting a serrated surface, the length of the connection point of the electrothermal sleeve body is increased, thereby increasing the connection strength of the connection point of the electrothermal sleeve body. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a bottom view of the present invention;

[0022] Figure 3 This is a schematic diagram of the upper connecting strip of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the lower connecting strip of this utility model.

[0024] In the diagram: 1. Electrothermal sleeve body; 2. Connecting mechanism; 3. Upper connecting strip; 4. Tear opening one; 5. Lower connecting strip; 6. Tear opening two; 7. Connecting part; 8. Tear-off part; 9. Connector; 10. Hook; 11. Hanging hole; 12. Winding part; 13. Pull ring one; 14. Pull ring two; 15. Serrated surface. Detailed Implementation

[0025] The present invention provides a uniformly heated electrofusion sleeve in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0026] like Figures 1-4 As shown, an embodiment of this utility model provides a uniformly heated electrothermal fusion sleeve, including an electrothermal fusion sleeve body 1, and further comprising:

[0027] The connecting mechanism 2 includes an upper connecting strip 3 and a lower connecting strip 5 fixed at both ends of the electrofusion sleeve body 1. The lengths of the upper connecting strip 3 and the lower connecting strip 5 are less than the width of the electrofusion sleeve body 1. A connector 9 is provided on the lower connecting strip 5. Before connecting the electrofusion sleeve body 1, the lower connecting strip 5 is fixed to the upper connecting strip 3 by the connector 9 to achieve the initial positioning of the electrofusion sleeve body 1. The electrofusion sleeve body 1 is used for the heat fusion connection and sealing of components such as pipes. The upper connecting strip 3 and the lower connecting strip 5 are fixed to the electrofusion sleeve body 1, and the initial positioning is achieved by the cooperation of the connector 9. There is no need to use additional straps for fixing, which simplifies the installation steps. The lengths of the two are less than the width of the electrofusion sleeve body 1, which can expose the connection area between the electrofusion sleeve body 1 and the insulation layer, making it easy to directly fix the electrofusion sleeve body 1 and the insulation layer with a heat fusion gun, and avoiding the connection strip from obstructing the fixing operation.

[0028] like Figure 2 and Figure 3 As shown in this embodiment, a tear opening 4 is provided at one end of the upper connecting strip 3 near the electrothermal sleeve body 1. After the two sides of the electrothermal sleeve body 1 are initially sealed, the upper connecting strip 3 can be torn off through the tear opening 4. The tear opening 4 is provided at one end of the upper connecting strip 3 near the electrothermal sleeve body 1. After the electrothermal sleeve body 1 is initially fixed to the insulation layer, the upper connecting strip 3 can be torn off along the tear opening 4 without the need for tools, making the operation convenient.

[0029] like Figure 2 and Figure 4 As shown in this embodiment, a tear opening 6 is provided at the end of the lower connecting strip 5 away from the electrothermal sleeve body 1. The lower connecting strip 5 forms a connecting part 7 and a tearing part 8 through the tear opening 6. The connecting part 7 is fixed to the surface of the electrothermal sleeve body 1. After the electrothermal sleeve body 1 is initially fixed, the tearing part 8 can be torn off along the tear opening 6 to release the connecting part of the electrothermal sleeve body 1, which is convenient for subsequent fixing operations.

[0030] like Figures 1-4 As shown in this embodiment, the connector 9 consists of several hooks 10 and hanging holes 11. The hooks 10 are fixed to the end of the tear-off part 8, and the hanging holes 11 are opened on the upper connecting band 3. Before the electrothermal sleeve body 1 is connected, the hooks 10 are hung in the hanging holes 11. The hooks 10 and the hanging holes 11 cooperate to form a detachable connection structure. Before the electrothermal sleeve body 1 is connected, the hooks 10 are hung into the hanging holes 11, which can quickly realize the fixation of the lower connecting band 5 and the upper connecting band 3 and complete the initial positioning of the electrothermal sleeve body 1.

[0031] like Figures 1-3As shown in this embodiment, the upper connecting strap 3 has an integrally formed winding portion 12 at its end. The winding portion 12 is integrally formed at the end of the upper connecting strap 3 and can naturally curl and support the end of the upper connecting strap 3, keeping it away from the surface of the electrothermal sleeve body 1. When the hook 10 needs to be hooked into the hanging hole 11, the winding portion 12 can prevent the end of the upper connecting strap 3 from sticking to the surface of the electrothermal sleeve body 1, making it convenient for the operator to take off the lower connecting strap 5 and quickly hook the hook 10 into the hanging hole 11, thus improving the convenience of the hooking operation.

[0032] like Figures 1-3 As shown in this embodiment, a pull ring 13 is fixed to the surface of the upper connecting strip 3. The pull ring 13 is fixed to the surface of the upper connecting strip 3, providing a force point for tearing the upper connecting strip 3. The operator can put their finger into the pull ring 13 and apply force outward to tear off the upper connecting strip 3 along the tear opening 4. There is no need to find the force application point, making the operation more labor-saving.

[0033] like Figure 1 , Figure 2 and Figure 4 As shown in this embodiment, a pull ring 14 is fixed on the surface of the tear-off part 8. There are two pull rings 14 in total. The two pull rings 14 are symmetrically arranged about the middle of the tear-off part 8. When the hook 10 is attached, the tear-off part 8 can be lifted by the pull rings 14 to make it easy to align with the hanging hole 11 of the upper connecting strip 3, thus improving the ease of attachment.

[0034] like Figure 1 and Figure 2 As shown in this embodiment, a serrated surface 15 is provided at the connection of the electrothermal sleeve body 1. When the electrothermal sleeve body 1 is fixed, the two serrated surfaces 15 are in contact with each other. When the two serrated surfaces 15 are in contact, the contact area at the connection can be increased. The larger contact area can enhance the connection strength at the connection of the electrothermal sleeve body 1 and prevent the connection from cracking due to external pulling or vibration during use.

[0035] Working principle: Place the electrofusion sleeve body 1 in the position to be installed. After aligning the connection of the electrofusion sleeve body 1, hook your fingers into the two pull rings 14 of the tear-off part 8 of the lower connecting strap 5. With the help of the force points of the pull rings 14, align the hook 10 at the end of the tear-off part 8 with the hanging hole 11 of the upper connecting strap 3 and hang it in, so that the lower connecting strap 5 is fixed on the upper connecting strap 3. At this time, the electrofusion sleeve body 1 forms a ring shape, and there is no need to use a strap for fixation.

[0036] Since the lengths of the upper connecting strip 3 and the lower connecting strip 5 are less than the width of the electrofusion sleeve body 1, the electrofusion sleeve body 1 is directly fixed to the insulation layer to be connected using a hot melt gun to ensure that the position of the electrofusion sleeve body 1 on the insulation layer is stable.

[0037] After fixing, fasten the pull ring 13 and pull ring 2 14 again, tear off the upper connecting strip 3 and tear-off part 8, release the lower connecting strip 5, align the connection of the electrothermal sleeve body 1, so that the serrated surfaces 15 of the two places fit together, and then fix the connection to ensure a tight connection.

[0038] After the connection is fixed, the remaining connecting part 7 of the lower connecting strip 5 is flipped upwards so that it fits against the connection of the electrothermal sleeve body 1. Then, the connecting part 7 is fixed to the connection by heat fusion to achieve secondary sealing of the connection of the electrothermal sleeve body 1 and improve the sealing performance during use.

[0039] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A uniformly heated electrothermal fusion sleeve, comprising an electrothermal fusion sleeve body (1), characterized in that, Also includes: The connecting mechanism (2) includes an upper connecting strip (3) and a lower connecting strip (5) fixed at both ends of the electrothermal fusel body (1). The length of the upper connecting strip (3) and the lower connecting strip (5) is less than the width of the electrothermal fusel body (1). A connector (9) is provided on the lower connecting strip (5). Before the electrothermal fusel body (1) is connected, the lower connecting strip (5) is fixed on the upper connecting strip (3) by the connector (9) to achieve the initial positioning of the electrothermal fusel body (1).

2. The uniformly heated electrofusion sleeve according to claim 1, characterized in that, The upper connecting strip (3) has a tear opening (4) at one end near the electrothermal fusel body (1). After the electrothermal fusel body (1) is initially sealed on both sides, the upper connecting strip (3) is torn off through the tear opening (4).

3. The uniformly heated electrofusion sleeve according to claim 2, characterized in that, The lower connecting strip (5) has a tear opening (6) at one end away from the electrothermal fusel body (1). The lower connecting strip (5) forms a connecting part (7) and a tearing part (8) through the tear opening (6). The connecting part (7) is fixed to the surface of the electrothermal fusel body (1).

4. The uniformly heated electrofusion sleeve according to claim 3, characterized in that, The connector (9) consists of several hooks (10) and hanging holes (11). The hooks (10) are fixed to the end of the tear-off part (8), and the hanging holes (11) are opened on the upper connecting strip (3). Before the electrothermal fusel body (1) is connected, the hooks (10) are hung in the hanging holes (11).

5. The uniformly heated electrofusion sleeve according to claim 4, characterized in that, The upper connecting strip (3) has an integrally formed winding portion (12) at its end.

6. The uniformly heated electrofusion sleeve according to claim 1, characterized in that, A pull ring (13) is fixed to the surface of the upper connecting strip (3).

7. The uniformly heated electrofusion sleeve according to claim 3, characterized in that, The surface of the tear-off part (8) is fixed with a pull ring two (14). There are two pull ring two (14) in total, and the two pull ring two (14) are symmetrically arranged about the middle of the tear-off part (8).

8. The uniformly heated electrofusion sleeve according to claim 1, characterized in that, The connection of the electrothermal sleeve body (1) is provided with a serrated surface (15). When the electrothermal sleeve body (1) is fixed, the two serrated surfaces (15) fit together.

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