Portable tool for rapidly repairing cable sheath

Abstract

The invention discloses a portable tool for rapidly repairing a cable sheath, and belongs to the technical field of cable repairing, the portable tool comprises a repairing mold, the repairing mold can repair the cable sheath, the repairing mold comprises two arched mold bodies, a heating device and a control device, and the heating device is arranged on the mold bodies. After the two die bodies are combined, a cable needing to be repaired can be fixed; the heating device comprises a heating bag and a thermocouple temperature measuring probe, the heating bag is arranged on the outer side of the mold body, the thermocouple temperature measuring probe is arranged in the mold body, and the thermocouple temperature measuring probe can detect the surface temperature of the cable fixed by the mold body; the control device can control the heating device. According to the cable repairing mold, the mold body can ensure that the outer diameter of a repaired cable is consistent with the outer diameter of an original cable, the heating device is arranged on the outer side of the mold body, the heating device can ensure that the mold body is heated consistently, and the cable repairing quality at the damaged position in the mold body is ensured.

Description

Technical Field

[0001] The invention relates to a portable tool for quickly repairing a cable sheath and belongs to the technical field of cable repair. Background Art

[0002] With the rapid development of underground power cable laying projects, higher requirements are placed on the quality and service life of cables. Cable sheaths are usually made of polyethylene, polyvinyl chloride, cross-linked polyethylene, polyurethane, hinged polyvinyl chloride, etc. They can protect cables or wires, prevent electromagnetic interference, increase the service life of cables or wires, ensure the electrical performance of cables or wires, and improve the aesthetics and durability of cables or wires.

[0003] In the process of practical cable installation, the sheath layer of the cable is easily scratched due to the machine laying. The traditional repair methods, such as hot iron sheets, torches, etc., are not only complicated to operate, but also have certain safety hazards. The effect after the repair is completed still has certain defects. Therefore, a repair tool that can easily repair the cable sheath layer is needed. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a portable tool for quickly repairing cable sheaths, which solves the problem that the traditional cable repairing has poor effect and certain danger.

[0005] The technical problem to be solved by the present invention is achieved by adopting the following technical solution: a portable tool for quickly repairing cable sheaths, comprising:

[0006] A repair mold capable of repairing a cable sheath,

[0007] The repair mold comprises a mold body, a heating device, and a control device. There are two mold bodies, and the mold bodies are arched. The two mold bodies can fix the cable to be repaired after being combined.

[0008] The heating device comprises a heating pack and a thermocouple temperature measuring probe, wherein the heating pack is arranged outside the mold body, and the thermocouple temperature measuring probe is arranged inside the mold body, and the thermocouple temperature measuring probe can detect the surface temperature of the cable fixed to the mold body;

[0009] The control device is capable of controlling the heating device.

[0010] Preferably, the mold body is provided with fastening bolts at the edges of both ends.

[0011] Preferably, a fixing groove is provided in the middle of the mold body, and a fixing half groove is provided at the edge of the mold body.

[0012] Preferably, the mold body is fixed by the fastening bolts, and after the mold body is assembled, the fixing half grooves arranged on the edges of the mold body are connected to each other to form a fixing groove.

[0013] Preferably, the thermocouple temperature measuring probe can detect the temperature of the cable surface, and the thermocouple temperature measuring probe is fixed in the fixing groove.

[0014] Preferably, the heating pack can be mounted on the surface of the mold body.

[0015] The beneficial effects of the present invention are:

[0016] (1) Through the present invention, the sheath layer of the cable is easily damaged during use, and the protective effect of the sheath layer on the cable is weakened after being damaged. By setting a repair mold on the outside of the cable to repair the cable, it can be ensured that the subsequent use of the cable is not affected. The repair mold includes a mold body and a heating device. The mold body can ensure that the outer diameter of the repaired cable is consistent with the outer diameter of the original cable. The heating device is set on the outside of the mold body. The heating device can ensure that the mold body is heated uniformly, thereby ensuring the quality of the cable repair at the damaged part inside the mold body.

[0017] (2) Through the present invention, the repair mold is composed of a mold body, a heating device, and a control device. The heating device includes a heating pack and a thermocouple temperature probe. The heating pack uses electric heating to heat the mold body. The sheath layer of the cable is heated by electric heating. The traditional repair method is to heat the sheath layer of the cable by using a hot iron sheet, a fire gun, etc., and fill it with a repair film. Compared with the traditional repair method, the use of electric heating can avoid the risk of fire in the traditional repair method.

[0018] The control device can control the heating device, and the control device can control the heating temperature and heating time of the heating package; the heating device is also provided with a thermocouple temperature probe, which is arranged in the mold body to detect the temperature of the cable surface and convert it into an electrical signal to transmit to the control device. The control device adjusts the temperature of the heating package according to the set temperature, time and the temperature detected by the thermocouple temperature probe, which can ensure that the temperature of the cable heating is within a controllable range, and the sheath layer will not be damaged again due to excessive temperature, or the effect of the repair film installed on the cable surface will not be affected by too low temperature.

[0019] (3) Through the present invention, the mold design is reasonable, and the mold body in the repair tool is set with multiple sizes. When facing cables of different sizes, a cable mold of a suitable size can be selected to repair the cable surface. The overall structure of the repair tool is simple and the operation process is simple. Only the heating temperature and heating time need to be set in the control system to ensure the overall repair effect of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 It is a schematic structural diagram of the mold body of the present invention.

[0022] Figure 3 It is a side sectional view of the present invention.

[0023] In the figure: 1-mold body, 11-fixing groove, 12-fixing half groove, 13-screw hole, 2-cable, 3-fastening bolt. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments.

[0025] Example 1

[0026] like Figure 1-Figure 3 As shown, a portable tool for quickly repairing a cable sheath includes a repair mold, and the repair mold can repair the sheath of the cable. During the use of the cable 2, the sheath layer of the cable 2 is easily scratched by the machine because the cable 2 is laid by a machine, resulting in certain damage to the sheath of the cable 2. In the subsequent use of the cable 2, the cable 2 with damaged sheath layer needs to be repaired and used again. In the traditional repair method, the sheath layer of the cable 2 is heated by using tools such as hot iron sheets and flamethrowers, and the sheath layer is repaired using repair materials. The surface quality of the cable 2 after repair by this type of repair method is significantly different from the surface quality of the undamaged cable 2, and secondary damage is prone to occur.

[0027] Reference Figure 1 The repair mold includes a mold body 1, a heating device, and a control device. There are two mold bodies 1, and the mold body 1 is arched. The two mold bodies 1 can form a hollow cylinder after being combined, and the hollow cylinder can fix the cable 2 to be repaired and the heating device.

[0028] Reference Figure 2-Figure 3 The mold body 1 is arched, and a fixing frame for accommodating the fixing device is arranged at the edge of the mold body 1, and a screw hole 13 is arranged on the fixing frame. In this embodiment, the mold body 1 is fixed by bolts.

[0029] After the two mold bodies 1 are combined, the fastening bolts 3 can be disposed in the screw holes 13 to fix the mold bodies 1 through the screw holes 13 .

[0030] The arched top of the mold body 1 is provided with a plurality of fixing grooves 11, which are cylindrical grooves. A plurality of fixing grooves 11 can be provided on the mold body 1, and the intervals between the fixing grooves 11 are the same. In this embodiment, the number of the fixing grooves is two, and the intervals between the fixing grooves 11 are equal. A fixing half groove 12 is provided on the side of the mold body 1, and the fixing half groove 12 is half of the fixing groove 11. After the two mold bodies 1 are assembled, the fixing half grooves 12 provided on the mold body 1 can be connected to each other to form a fixing groove. The position of the fixing half groove 12 corresponds to the position of the fixing groove 11.

[0031] The diameter of the mold body 1 is the same as the diameter of the cable 2. The mold body 1 is fixed on the cable 2 and fixed using the screw holes 13 to prevent the mold body 1 from being offset on the cable 2. When the diameter of the cable 2 to be repaired changes, the mold body 1 has multiple sizes. The appropriate mold body 1 is selected according to the diameter of the cable 2 to be repaired, which can ensure the repair effect of cables 2 of different sizes.

[0032] The heating device includes a heating pack and a thermocouple temperature probe. Figure 1 , Figure 3 The heating pack is arranged on the outside of the mold body 1 and can wrap the mold body 1. A heating device is arranged inside the heating pack, and the heating device can be connected to a power source to convert electrical energy into thermal energy. The thermocouple temperature probe is fixed on the heating pack, specifically, a fixed groove formed by the combination of the fixed groove 11 of the mold body 1 and the two mold bodies 1 and the fixed half groove 12. The thermocouple temperature probe can detect the current temperature of the cable 2 and convert the current temperature of the cable 2 into a signal to be transmitted to the control device.

[0033] In this embodiment, the heating pack is strip-shaped and can be arranged around the surface of the mold body 1. The thermocouple temperature measuring probe is arranged on one side of the heating pack. The thermocouple temperature measuring probe can be fixed in the mold body 1 through a fixed groove formed by a combination of a fixed groove 11 and two fixed half grooves 12. The thermocouple temperature measuring probe can detect the temperature of the surface of the cable 2 through the hole.

[0034] In this embodiment, the heating pack includes a shell, a heating device, an energy supply system, and a plastic structure. The energy supply system is connected to the heating device and fixed in the plastic structure. The shell wraps the plastic structure, and the plastic structure can adjust its shape to cover the outside of the mold body 1.

[0035] The plastic structure adopts a metal heat conductive sheet, the heating device adopts an electric heating wire, the energy supply system includes a power interface and a battery, and the outer shell includes silicone.

[0036] The metal heat conductive sheet has multiple layers, and electric heating wires are arranged between the metal heat conductive sheets. The electric heating wires are connected to a power interface or a battery, and energy is provided to the electric heating wires through the power interface or the battery. When there is an external power supply at the place where the jacket is repaired, the external power supply can be connected through the power interface to provide power to the heating device. When there is no external power supply at the place where the jacket is repaired, the metal heat conductive sheet is provided with power through the battery, which is suitable for construction sites without power supply.

[0037] The outer side of the plastic structure is wrapped with a shell, which is made of silicone. The plastic structure can change its own state and is wrapped on the outer side of the mold body 1. The shell can ensure that the plastic structure is protected during use to prevent damage and reduce the heating effect.

[0038] The thermocouple temperature measuring probe is arranged on the side of the heating package contacting the mold body 1 , and the thermocouple temperature measuring probe can detect the temperature of the cable inside the mold body 1 .

[0039] The control device can control the heating device, specifically:

[0040] The control device includes a regulator, through which the operator can set the heating temperature and heating time of the de-pyrogenic pack. The regulator is connected to the heating pack and the thermocouple temperature probe. The thermocouple temperature probe can detect the temperature of the cable surface and transmit the temperature to the regulator. The regulator adjusts the temperature of the heating pack according to the temperature detected by the thermocouple temperature probe. It is ensured that the temperature of the heating pack is not too high to damage the internal structure of the cable 2 or too low to cause the repair strip to fail to repair normally.

[0041] The working principle of the heating device is:

[0042] 1. Heating:

[0043] After the power is turned on, the current passes through the heating wire, and the inductive electrical energy of the heating wire is converted into thermal energy. The heat is transferred to the mold body 1 through the heating pack to heat the mold.

[0044] 2. Deformation:

[0045] By using a plastic structure, the shape of the heating pack can be fitted to the surface of the mold body 1 to prevent uneven heat transfer. When the size of the mold body 1 changes, the mold body 1 and the heating pack will not fit well.

[0046] 3. Control system:

[0047] The control system detects the thermocouple temperature probe and transmits the signal to the control system. The control system adjusts the heating package according to the set temperature and time to ensure temperature stability.

[0048] 4. Repair process:

[0049] The mold body 1 heats the repaired film to soften and flow the colloid to fill the damaged part of the cable.

[0050] It is then cured under temperature-controlled conditions to complete the repair of the cable.

[0051] The heating pack uses the above principles and structures to ensure uniform heat distribution during the cable repair process while being easy to operate and carry.

[0052] How to use the portable tool for quickly repairing cable sheaths:

[0053] 1. Fix the cable 2 with damaged sheath and the repairing film on the mold body 1. There are two mold bodies 1. The repairing film is fixed at the damaged position of the cable sheath;

[0054] 2. Use the fastening bolts 3 to fix the two mold bodies 1 to prevent the mold bodies 1 from shifting;

[0055] 3. Install the heating pack and fix it on the surface of the mold body 1;

[0056] 4. When fixing the heating pack, fix the thermocouple temperature measuring probe in the fixing groove composed of the fixing groove 11 and the fixing half groove 12;

[0057] 5. Start the heating pack and set the temperature of the heating pack to 200°C and the heating time to 20 minutes in the control device;

[0058] 6. After heating is completed, wait for natural cooling; after cooling, release the tightening bolt 3.

[0059] In the present invention, electric heating is used to avoid the use of open flames, high temperatures, etc. in the traditional method of repairing the cable 2 to heat the cable sheath, thereby reducing the potential safety hazards in the repair process. A repair film is used at the damaged part of the cable 2, and the outer diameter of the repaired cable 2 is controlled by the mold body 1 to ensure that the outer diameter of the repaired cable 2 is consistent with the original cable, and the heating pack transfers heat through the mold body 1 to ensure that the cable 2 is heated evenly and the repair quality is high. In terms of structure, the tool of the present invention is compact and easy to operate, and can repair the cable 2 to a better quality under various conditions.

[0060] The basic principles, main features and advantages of the present invention are shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A portable tool for quickly repairing cable sheaths, comprising: A repair mold capable of repairing a cable sheath, Features: The repair mold comprises a mold body, a heating device, and a control device. There are two mold bodies, and the mold bodies are arched. The two mold bodies can fix the cable to be repaired after being combined. The heating device comprises a heating pack and a thermocouple temperature measuring probe, wherein the heating pack is arranged outside the mold body, and the thermocouple temperature measuring probe is arranged inside the mold body, and the thermocouple temperature measuring probe can detect the surface temperature of the cable fixed to the mold body; The control device is capable of controlling the heating device.

2. A portable tool for quickly repairing a cable sheath according to claim 1, characterized in that: The mold body is provided with fastening bolts at the edges of both ends.

3. A portable tool for quickly repairing a cable sheath according to claim 2, characterized in that: A fixing groove is arranged in the middle of the mold body, and a fixing half groove is arranged at the edge of the mold body.

4. A portable tool for quickly repairing a cable sheath according to any one of claims 1 to 3, characterized in that: The mold body is fixed by the fastening bolts. After the mold body is assembled, the fixing half grooves arranged on the edges of the mold body are connected to each other to form a fixing groove.

5. A portable tool for quickly repairing a cable sheath according to claim 4, characterized in that: The thermocouple temperature measuring probe can detect the temperature of the cable surface, and the thermocouple temperature measuring probe is fixed in the fixing groove.

6. A portable tool for quickly repairing a cable sheath according to claim 1, characterized in that: The heating pack can be installed on the surface of the mold body.

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