A new electrically heated shrink sleeve

Abstract

The utility model provides a novel electric heat melting sleeve belongs to electric heat melting sleeve technical field, including electric heat melting sleeve body still includes connecting mechanism, the connecting mechanism includes a plurality of connecting block no.

Description

Technical Field

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

[0002] Electrofusion sleeves are pipe fittings made of polyethylene sheet as the base material, with an electrothermal wire mesh laminated inside the polyethylene sheet. When using an electrofusion sleeve, first clean the rust from the pipe surface. Then, wrap the electrofusion sleeve around the joint of the pipe insulation layer, securing it with straps to ensure it is stably wrapped around the insulation layer and that both ends are aligned. Use a heat fusion gun to connect the side of the electrofusion sleeve to the insulation layer. Then, release the straps from the electrofusion sleeve and connect the ends of the electrofusion sleeve using the heat fusion gun. After connection, connect the terminals of the electrofusion sleeve to a dedicated device, supplying power according to the set parameters. This heats the electrothermal wire mesh inside the electrofusion sleeve, melting the polyethylene sheet and connecting the electrofusion sleeve to the pipe insulation layer. Finally, inject expanding foam into the electrofusion sleeve to seal the space between the electrofusion sleeve and the pipe, achieving insulation protection at the pipe joint.

[0003] When an electrofusion sleeve is wrapped around a pipe insulation layer, in order to prevent the electrofusion sleeve from moving freely and to ensure that the electrofusion sleeve is cylindrically wrapped around the surface of the insulation layer, a strap needs to be wrapped around the electrofusion sleeve after it is wrapped around the insulation layer. The strap needs to be tightened to restrain the electrofusion sleeve. During the tightening process, the end of the strap needs to be pulled continuously to make the strap stably restrain the electrofusion sleeve. The positioning operation of the electrofusion sleeve on the pipe insulation layer is relatively cumbersome. When there are many pipe joints to be wrapped, the convenience of the positioning operation of the electrofusion sleeve on the insulation layer needs to be improved. Therefore, this application provides a new type of electrofusion sleeve to meet the needs. Utility Model Content

[0004] This utility model provides a novel electrothermal fusion sleeve to solve the problem that the ease of positioning the electrothermal fusion sleeve on the insulation layer needs to be improved when there are many pipe joints to be wrapped.

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

[0006] A novel electrothermal fuselage includes an electrothermal fuselage body and further includes:

[0007] The connecting mechanism includes several connecting blocks 1 and 2 fixed on the electrothermal fuselage body. A rubber strip is fixed to the side of the connecting block 1, and a hanging hole is opened on the side of the rubber strip. A hook block is fixed to the side of the connecting block 2. The hook block hooks onto the hanging hole of the rubber strip to realize the docking of the two ends of the electrothermal fuselage body.

[0008] Preferably, the bottom of the rubber strip is integrally formed with a thickened portion.

[0009] Preferably, both connecting block one and connecting block two are frustum-shaped.

[0010] Preferably, both end faces of the electrothermal sleeve body are provided with toothed surfaces, and the two toothed surfaces fit together.

[0011] Preferably, the rubber strip is provided with a tensile component, which includes a steel wire rope pre-embedded in the rubber strip. The rubber strip has two through grooves. The end of the steel wire rope passes through one through groove, bends at the hanging hole position, and then passes through the other through groove. The bending area of ​​the steel wire rope corresponding to the hanging hole is the bending part.

[0012] Preferably, a connecting disc is pre-embedded inside the connecting block, and both ends of the wire rope are fixedly connected to the side of the connecting disc.

[0013] Preferably, the hook block includes an inclined portion and a connecting portion connected in sequence, the connecting portion is fixed to the side of the connecting block two, and the inner wall of the hanging hole is in contact with the connecting portion.

[0014] Preferably, both connecting block one and connecting block two are hard plastic blocks.

[0015] Compared with the prior art, this utility model has at least the following beneficial effects:

[0016] In the above solution, by setting rubber strips and hooks, after the electrothermal fusion sleeve body is wrapped around the insulation layer, pulling the rubber strips causes the hanging holes to hang on the hooks, thus stably wrapping the electrothermal fusion sleeve body around the insulation layer and simultaneously making the two ends of the electrothermal fusion sleeve body fit together. The operation is simple. When there are many pipe joints to be wrapped, the positioning of the electrothermal fusion sleeve body on the insulation layer can be achieved through simple operation, thereby improving the ease of operation of positioning the electrothermal fusion sleeve body.

[0017] By setting up a steel wire rope, the steel wire rope is in a bent state in the through groove when the rubber strip is not stretched. When the hanging hole is hung on the hook block, the steel wire rope is in a taut state. The steel wire rope disperses the force on the rubber strip, which on the one hand prevents the rubber strip from being over-deformed and affecting the positioning stability of the electrothermal sleeve body, and on the other hand prevents the rubber strip from being over-stressed and breaking. At the same time, the bent part of the steel wire rope at the position of the hanging hole can prevent the hanging hole from being over-twisted, ensuring that the hanging hole is stably hung on the hook block.

[0018] By setting a connecting plate, which is pre-embedded in the first connecting block, the contact area between the wire rope and the first connecting block is increased, thereby increasing the tensile strength of the wire rope and the first connecting block and preventing the wire rope from falling out of the rubber strip when it is pulled.

[0019] By setting a thickened section located at the bottom of the rubber strip, a stable force point is provided for pulling the rubber strip, making it easier for operators to hang the hanging holes on the rubber strip onto the hook block. 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 cross-sectional view of the rubber strip of this utility model;

[0022] Figure 3 This is a three-dimensional structural diagram of the wire rope section of this utility model;

[0023] Figure 4 This is a three-dimensional structural diagram of the hook block of this utility model.

[0024] In the figure: 1. Electrothermal sleeve body; 2. Connecting mechanism; 3. Rubber strip; 4. Connecting block one; 5. Hanging hole; 6. Connecting block two; 7. Hook block; 8. Inclined part; 9. Connecting part; 10. Thickened part; 11. Tensile component; 12. Connecting disc; 13. Through groove; 14. Steel wire rope; 15. Bending part; 16. Toothed surface. Detailed Implementation

[0025] The present invention provides a novel electrothermal fusion 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 1-4As shown, an embodiment of this utility model provides a novel electrothermal fusion sleeve, including an electrothermal fusion sleeve body 1 and a connecting mechanism 2. The connecting mechanism 2 includes a plurality of connecting blocks 4 and connecting blocks 6 fixed to the electrothermal fusion sleeve body 1. A rubber strip 3 is fixed to the side of the connecting block 4. The connecting block 4 is connected and fixed to the rubber strip 3 and the electrothermal fusion sleeve body 1 by adhesive. The connecting block 6 is connected and fixed to the electrothermal fusion sleeve body 1 by adhesive. A hanging hole 5 is provided on the side of the rubber strip 3. A hook block 7 is fixed to the side of the connecting block 6. Block 7 hooks onto the hanging hole 5 of the rubber strip 3 to achieve the connection of the two ends of the electrothermal fusion sleeve body 1. Connecting block 1 4 provides a stable installation support for the rubber strip 3, and connecting block 2 6 provides a fixed base for the hook block 7. The rubber strip 3 has good elasticity. By pulling, the hanging hole 5 is hung on the hook block 7, which can quickly achieve the positioning of the electrothermal fusion sleeve body 1 on the insulation layer, greatly improving the operation efficiency of pipe joint wrapping. After the hook block 7 hooks onto the hanging hole 5, it can provide a continuous tightening force for the electrothermal fusion sleeve body 1, ensuring that the electrothermal fusion sleeve body 1 is tightly wrapped on the insulation layer.

[0027] like Figure 1 As shown in this embodiment, the bottom of the rubber strip 3 is integrally formed with a thickened part 10. The thickened part 10 is connected to the rubber strip 3 through an integral molding process. Its thickness is greater than that of the main body of the rubber strip 3, which can provide the operator with a clear and non-slip force application point. When pulling the rubber strip 3, the fingers can firmly pinch the thickened part 10 to avoid slipping due to the smooth surface of the rubber strip 3.

[0028] like Figure 1 As shown in this embodiment, both connecting block 4 and connecting block 6 are frustum-shaped. The frustum-shaped structure increases the contact area between connecting block 4 and connecting block 6 and the electrothermal sleeve body 1, which can evenly distribute the tensile force transmitted by the rubber strip 3 or hook block 7, and prevent cracking at the connection between connecting block 4 and connecting block 6 and the electrothermal sleeve body 1 due to excessive local stress, thereby enhancing the connection stability between connecting block 4 and connecting block 6 and the electrothermal sleeve body 1.

[0029] like Figure 1 As shown in this embodiment, both end faces of the electrothermal sleeve body 1 are provided with toothed surfaces 16. The two toothed surfaces 16 fit together. The toothed surfaces 16, through the interlocking structure, can greatly increase the contact area of ​​the two end faces of the electrothermal sleeve body 1, thereby improving the connection strength of the two end faces.

[0030] like Figure 2 and Figure 3As shown, in this embodiment, a tensile component 11 is provided inside the rubber strip 3. The tensile component 11 includes a steel wire rope 14 pre-embedded in the rubber strip 3. Two through slots 13 are opened on the rubber strip 3. The end of the steel wire rope 14 passes through one through slot 13, bends at the hanging hole 5, and then passes through the other through slot 13. The bending area of ​​the steel wire rope 14 corresponding to the hanging hole 5 is the bending part 15. The steel wire rope 14 has high tensile strength. When the rubber strip 3 is pulled, the steel wire rope 14 can disperse most of the tension and prevent the rubber strip 3 from being excessively deformed. The loss of elasticity ensures stable tightening force on the electrothermal sleeve body 1, while preventing the rubber strip 3 from breaking due to excessive tension, thus extending the service life of the rubber strip 3. The through groove 13 provides a passage for the steel wire rope 14 to pass through, ensuring that the steel wire rope 14 is reasonably distributed within the rubber strip 3 and does not affect the overall elasticity of the rubber strip 3. The bending part 15 adapts to the shape of the hanging hole 5, which can enhance the structural strength of the hanging hole 5 area, prevent the hanging hole 5 from being excessively twisted under the pulling force of the hook block 7, ensure that the hanging hole 5 always fits stably against the hook block 7, and guarantee the fixing effect of the connecting mechanism 2.

[0031] like Figure 2 and Figure 3 As shown in this embodiment, a connecting plate 12 is pre-embedded inside the connecting block 4. Both ends of the wire rope 14 are fixedly connected to the side of the connecting plate 12. The connecting plate 12 is pre-embedded inside the connecting block 4, which can greatly increase the contact area between the wire rope 14 and the connecting block 4. Compared with the wire rope 14 being directly connected to the connecting block 4, the connecting plate 12 can evenly transmit the tension of the wire rope 14 to the entire connecting block 4, avoiding the tension being concentrated at the connection point between the wire rope 14 and the connecting block 4, and preventing the wire rope 14 from falling out of the connecting block 4.

[0032] like Figure 4 As shown in this embodiment, the hook block 7 includes an inclined part 8 and a connecting part 9 connected in sequence. The connecting part 9 is fixed to the side of the connecting block 6, and the inner wall of the hanging hole 5 fits against the connecting part 9. The connecting part 9 provides a stable bearing surface for the hanging hole 5. Its shape is adapted to the hanging hole 5, so that the inner wall of the hanging hole 5 fits tightly against the connecting part 9, preventing the hanging hole 5 from shaking on the connecting part 9, and ensuring that the tightening force at both ends of the electrothermal sleeve body 1 is uniform. At the same time, the inclined part 8 can prevent the hanging hole 5 from accidentally falling off the connecting part 9.

[0033] like Figure 1 As shown in this embodiment, both connecting block 4 and connecting block 6 are hard plastic blocks. Hard plastic blocks have high structural strength and rigidity, which can stably bear the tensile force transmitted by the rubber strip 3 or hook block 7, prevent deformation due to force, and ensure the stable fixing effect of the connecting mechanism 2.

[0034] Working principle: The electrofusion sleeve body 1 is wrapped around the joint of the pipe insulation layer, so that the two end faces of the electrofusion sleeve body 1 are close to each other. At this time, the toothed surfaces 16 of the two end faces will fit together. The toothed surfaces 16 can increase the contact area of ​​the end faces and improve the connection strength after subsequent heat fusion.

[0035] Then, pinch the thickened part 10 at the bottom of the rubber strip 3 and pull the rubber strip 3 towards the connecting block 2 6. The rubber strip 3 deforms, so that the hanging hole 5 on the side of the rubber strip 3 aligns with the hook block 7 on the connecting block 2 6. The hanging hole 5 passes through the inclined part 8 of the hook block 7 and hangs at the connecting part 9. The inclined part 8 is used to prevent the rubber strip 3 from separating from the connecting part 9, ensuring that the rubber strip 3 is stably hung at the hook block 7. Through the cooperation of the hook block 7 and the hanging hole 5, the two ends of the electrofusion sleeve body 1 are stably connected, and the electrofusion sleeve body 1 is stably wrapped on the insulation layer of the pipe, avoiding the electrofusion sleeve body 1 from shifting on the insulation layer. Even when facing multiple pipe joints, positioning can be completed quickly, improving the convenience of operation. After positioning, the electrofusion sleeve body 1 and the insulation layer can be connected using a hot melt gun.

[0036] When the rubber strip 3 is not pulled, the steel wire rope 14 is bent in the through groove 13. After the hanging hole 5 is hung on the hook block 7, the steel wire rope 14 is straightened and taut. The steel wire rope 14 disperses the tension on the rubber strip 3, preventing the rubber strip 3 from being excessively deformed and affecting the positioning stability. At the same time, it avoids the rubber strip 3 from breaking due to excessive tension. The bend 15 of the steel wire rope 14 corresponding to the hanging hole 5 can prevent the hanging hole 5 from being excessively twisted when under force, ensuring that the hanging hole 5 always fits stably with the connecting part 9 of the hook block 7. In addition, the two ends of the steel wire rope 14 are fixedly connected to the connecting plate 12 embedded in the connecting block 4. The connecting plate 12 increases the contact area between the steel wire rope 14 and the connecting block 4, greatly improving the tensile strength of the steel wire rope 14 and preventing the steel wire rope 14 from falling off the rubber strip 3 or the connecting block 4 when pulled, further ensuring the reliability of the connecting mechanism 2.

[0037] After the side of the electrothermal sleeve body 1 is connected to the insulation layer by the hot melt gun, pull the rubber strip 3 to deform the area of ​​the hanging hole 5, thereby separating the hanging hole 5 from the hook block 7. After separation, flip the rubber strip 3 upward to prevent the rubber strip 3 from blocking the contact area of ​​the two toothed surfaces 16. Then use the hot melt gun to heat melt the contact area of ​​the two toothed surfaces 16. After the connection, the subsequent heating and foaming operation can be carried out. After the operation is completed, the hanging hole 5 of the rubber strip 3 can be hung on the hook block 7 again to achieve further protection after the two toothed surfaces 16 are connected.

[0038] 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 new electric heat shrink sleeve comprising an electric heat shrink sleeve body (1), characterized in that, It also includes a connecting mechanism (2), which includes several connecting blocks 1 (4) and connecting blocks 2 (6) fixed on the electrothermal fusel body (1). A rubber strip (3) is fixed on the side of the connecting block 1 (4), and a hanging hole (5) is opened on the side of the rubber strip (3). A hook block (7) is fixed on the side of the connecting block 2 (6). The hook block (7) hooks the hanging hole (5) of the rubber strip (3) to realize the docking of the two ends of the electrothermal fusel body (1).

2. The novel electric heat shrink sleeve according to claim 1, characterized in that, The bottom of the rubber strip (3) is integrally formed with a thickened part (10).

3. The novel electric heat shrink sleeve of claim 1, wherein, Both connecting block one (4) and connecting block two (6) are frustum-shaped.

4. The novel electric heat shrink sleeve of claim 1, wherein, The two end faces of the electrothermal sleeve body (1) are provided with toothed surfaces (16), and the two toothed surfaces (16) fit together.

5. The novel electric heat shrink sleeve of claim 1, wherein, The rubber strip (3) is provided with a tensile component (11). The tensile component (11) includes a steel wire rope (14) pre-embedded in the rubber strip (3). Two through grooves (13) are opened on the rubber strip (3). The end of the steel wire rope (14) passes through one through groove (13), bends at the hanging hole (5), and then passes through the other through groove (13). The bending area of ​​the steel wire rope (14) corresponding to the hanging hole (5) is the bending part (15).

6. The novel electric heat shrink sleeve of claim 5, wherein, The connecting block (4) has a pre-embedded connecting plate (12), and both ends of the wire rope (14) are fixedly connected to the side of the connecting plate (12).

7. The novel electric heat shrink sleeve of claim 1, wherein, The hook block (7) includes an inclined part (8) and a connecting part (9) connected in sequence. The connecting part (9) is fixed to the side of the connecting block two (6), and the inner wall of the hanging hole (5) is in contact with the connecting part (9).

8. The novel electric heat shrink sleeve of claim 1, wherein, Both connecting block one (4) and connecting block two (6) are hard plastic blocks.

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