Cable core wire protection warning device and use method thereof

Abstract

The invention discloses a cable core wire protection warning device and a use method thereof, and the cable core wire protection warning device comprises a wire core fixing assembly and an assembly type assembly. The wire core fixing assembly comprises a first insulating shell and a wire core fastener; the wire core fastener is arranged in the first insulating shell, the first insulating shell is provided with a wire core access port, and the wire core access port corresponds to the wire core fastener; the assembly type assembly comprises at least two warning marks, an insulating sheath, a protective cover and at least two functional accessories. The warning mark is arranged on the surface of the insulating sheath, and the surface of the protective cover is provided with an installation operation groove. And the first insulating shell is detachably connected with the functional accessory or the protective cover. The overall protection warning effect is achieved through self-defined matching of an operator, use is flexible, the sheath and functional accessories are replaced at any time, maintenance is easy, the operator is helped to visually know the condition of a cable core, and convenience is brought to operation on a secondary loop.

Description

Technical Field

[0001] The present invention relates to the technical field of cable protection, and in particular to a cable core wire protection warning device and a use method thereof. Background Art

[0002] During the process of disassembling, wiring and installing the core wires of the low-voltage cable in the power system, operators need to take some technical measures to provide safety protection and warnings for the core wires of single low-voltage cables to ensure that electric shock, wrong connection and missing connection do not occur. For the spare core wires of single cables that are not used for a long time, isolation and protection measures must be taken.

[0003] In this regard, the existing methods include using insulating tape to stick or wrap, and also using isolation rings. However, after a long period of use, these methods have gradually exposed problems such as single function, weak warning effect, and weak anti-electric shock effect, especially at night, the warning effect and anti-electric shock effect are poor; and with the continuous updating of the secondary circuit, the operators are not clear about what some single cable cores that have not been used for a long time may be used for, whether they will be energized, etc. during the operation process, and need to refer to the drawings to find out again, which brings inconvenience to the operation on the secondary circuit. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a cable core protection warning device and a method of using the same, which can flexibly display the condition of the cable core while providing protection, thereby bringing convenience to operations on the secondary circuit.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A cable core wire protection and warning device comprises a core fixing component and an assembled component;

[0007] The wire core fixing assembly comprises a first insulating shell and a wire core fastener;

[0008] The wire core fastener is arranged in the first insulating housing, and the first insulating housing is provided with a wire core access port, and the wire core access port corresponds to the wire core fastener;

[0009] The assembled component includes an insulating sheath, a protective cover, at least two warning signs and at least two functional accessories;

[0010] The warning mark is arranged on the surface of the insulating sheath, the insulating sheath is sleeved on the first insulating shell, the surface of the protective cover is provided with an installation operation groove, and the first insulating shell is detachably connected to the functional accessory or the protective cover.

[0011] In order to solve the above technical problems, another technical solution adopted by the present invention is:

[0012] A method for using a cable core wire protection and warning device, applied to the above-mentioned cable core wire protection and warning device, comprises the following steps:

[0013] S1. The operator selects an insulating sheath with a warning mark according to the core wire information of the cable core wire;

[0014] S2. The operator installs the selected insulating sheath onto the first insulating housing;

[0015] S3. The operator connects the protective cover or the selected functional accessories to the first insulating housing;

[0016] S4. The operator inserts the cable core wire into the core access port on the first insulating housing and fixes the cable core wire with the core fastener;

[0017] S5. When the cable core protection warning device is not needed, the operator shall remove and retract the protective cover or functional accessories, insulating sheath and core fixing components in sequence.

[0018] The beneficial effects of the present invention are: providing a cable core protection warning device and a method of using the same. When performing a cable core protection warning on a secondary circuit, first select a suitable insulating sheath with a warning mark according to the actual operating conditions such as the core information, and then install the selected insulating sheath on the first insulating shell, and then connect the protective cover or the functional accessories selected according to actual needs to the first insulating shell, and finally fix the first insulating shell and the core fasteners inside it to the cable core to form a protection warning. When used at night, the mark can be used for warning and has functions such as light indicator lights. The overall protection warning effect is achieved by the operator's customized matching, which is flexible to use, and the sheath and functional accessories can be replaced at any time. It is simple to maintain, helping the operator to intuitively understand the condition of the cable core and bringing convenience to operations on the secondary circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a wire core fixing assembly of a cable core wire protection and warning device of the present invention;

[0020] Figure 2 A cross-sectional view of a core fixing assembly of a cable core protection and warning device according to an embodiment of the present invention;

[0021] Figure 3 A schematic structural diagram of an insulating sheath with a warning mark of a cable core wire protection and warning device according to an embodiment of the present invention;

[0022] Figure 4It is a structural schematic diagram of a functional accessory of a cable core wire protection and warning device involved in an embodiment of the present invention;

[0023] Figure 5 A schematic diagram of the internal components of a light indicator of a cable core wire protection and warning device according to an embodiment of the present invention;

[0024] Figure 6 A schematic structural diagram of a protective cover of a cable core wire protection and warning device according to an embodiment of the present invention;

[0025] Figure 7 A schematic diagram of the position of an elastic pick of a cable core wire protection and warning device according to an embodiment of the present invention;

[0026] Figure 8 A schematic diagram of the effect of forming a converging and fixing opening of a cable core wire protection and warning device according to an embodiment of the present invention;

[0027] Fig. 9 The present invention is a schematic diagram of the steps of using a cable core wire protection and warning device.

[0028] Description of labels:

[0029] 1. First insulating shell; 2. Wire core fastener; 3. Warning mark; 4. Functional accessories; 5. Insulating sheath; 6. First connecting part; 7. Second connecting part; 8. Ejector pin; 9. Insulating chamber; 10. Bending and fixing port; 11. Elastic pick; 12. Protective cover; 13. Installation operation slot;

[0030] 41. Second insulating shell; 42. Power supply module; 43. Indicator light; 44. Elastic force control member; 45. Control head. DETAILED DESCRIPTION

[0031] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0032] Please refer to Figures 1 to 8 , a cable core wire protection warning device, comprising a core fixing component and an assembled component;

[0033] The wire core fixing assembly comprises a first insulating shell 1 and a wire core fastener 2;

[0034] The wire core fastener 2 is disposed in the first insulating housing 1, and a wire core access port is provided on the first insulating housing 1, and the wire core access port corresponds to the wire core fastener 2;

[0035] The assembled component includes an insulating sheath 5, a protective cover 12, at least two warning signs 3 and at least two functional accessories 4;

[0036] The warning mark 3 is arranged on the surface of the insulating sheath 5, the insulating sheath 5 is sleeved on the first insulating shell 1, and the surface of the protective cover 12 is provided with an installation operation groove 13; the first insulating shell 1 is detachably connected to the functional accessory 4 or the protective cover 12.

[0037] From the above description, it can be seen that the beneficial effects of the present invention are: when performing cable core protection warnings on the secondary circuit, first select a suitable insulating sheath 5 with a warning mark 3 according to the actual operating conditions such as the core information, and then install the selected insulating sheath 5 on the first insulating shell 1, and then connect the protective cover 12 or the functional accessory 4 (selected according to actual needs) to the first insulating shell 1, and finally fix the first insulating shell 1 and the core fasteners inside it to the cable core to form a protective warning. When used at night, the mark can be used for warning and has functions such as light indicator 43. The overall protective warning effect is achieved by the operator's customized matching, which is flexible to use, and the sheath and functional accessories can be replaced at any time. It is simple to maintain, helping the operator to intuitively understand the condition of the cable core and bringing convenience to the operation on the secondary circuit.

[0038] Furthermore, one of the functional accessories 4 is a light indicator, and the light indicator includes a second insulating shell 41, a power supply module 42 and an indicator light 43;

[0039] The power supply module 42 and the indicator light 43 are both located in the second insulating housing 41, and the power supply module 42 is electrically connected to the indicator light 43;

[0040] The surface of the second insulating shell 41 corresponding to the position of the indicator light 43 is a transparent outer wall, and the second insulating shell 41 is detachably connected to the first insulating shell 1.

[0041] From the above description, it can be seen that the light indicator is composed of a second insulating shell 41, a power supply module 42 and an indicator light 43; the second insulating shell 41 provides insulation protection while protecting the lamp; the indicator light 43 relies on the power supply module 42 for independent power supply; at night, the indicator light 43 plays a lighting role to enhance the warning effect.

[0042] Furthermore, the first insulating shell 1 is provided with a first connecting portion 6;

[0043] The functional accessory 4 is provided with a second connection portion 7 corresponding to the first connection portion 6, and the first connection portion 6 and the second connection portion 7 are detachably connected;

[0044] The first connection part 6 is provided with a pin 8, and the second connection part 7 is provided with a function-activating elastic switch;

[0045] When the first connection portion 6 and the second connection portion 7 are detachably connected, the ejector pin 8 abuts against the function activation elastic switch.

[0046] From the above description, it can be seen that the first insulating shell 1 and the functional accessory 4 are respectively provided with a first connecting part 6 and a second connecting part 7, which are connected by threads, and are very convenient to install and replace; and during installation, the ejector pin 8 on the first connecting part 6 corresponds to abutting against the function start elastic switch, that is, corresponding to starting the functional accessory 4, so as to achieve synchronization of installation and function activation, and synchronization of disassembly and function shutdown, thereby making the use of the device more convenient.

[0047] Further, the first connecting portion 6 is a fitting groove, the inner wall of the first connecting portion 6 is provided with a thread, the second connecting portion 7 is a cylinder matched with the first connecting portion 6, and the circumferential outer wall of the second connecting portion 7 is provided with a reverse thread;

[0048] The ejector pin 8 is located inside the first connection part 6 , the function start elastic switch is located inside the second connection part 7 , and the first connection part 6 is threadedly connected to the second connection part 7 .

[0049] From the above description, it can be seen that the first connecting part 6 is designed to be a mounting groove, and the second connecting part 7 is correspondingly designed to be a cylinder. During installation, the interior of the first connecting part 6 and the outer wall of the second connecting part 7 are spliced ​​into a closed space to protect the ejector pin 8 and the function-starting elastic switch, thereby preventing external factors from causing accidental shutdown of the function of the functional accessory 4.

[0050] Furthermore, an insulating chamber connected to the wire core access port is provided in the first insulating housing 1;

[0051] The wire core fastener 2 is disposed in the insulating chamber 9, and the wire core fastener 2 is provided with a bunching and fixing opening 10 for the wire to pass through, and the bunching and fixing opening 10 corresponds to the wire core access opening;

[0052] The size and shape of the converging and fixing opening 10 are adjustable.

[0053] From the above description, it can be seen that the wire core fastener 2 is provided with a gathering and fixing opening 10 for the wire to pass through, and the size and shape of the gathering and fixing opening 10 are adjustable, so that it can adapt to wire cores of different shapes and sizes to enhance the gathering and fixing effect.

[0054] Furthermore, the wire core fastener 2 includes at least two elastic picks 11;

[0055] All the elastic paddles 11 are sequentially distributed in the insulating chamber 9 in a direction close to the wire core access port, and adjacent elastic paddles 11 are staggered, and one end of each elastic paddle 11 for contacting the wire core corresponds to the wire core access port;

[0056] In the straight direction of entering and exiting the wire core access port, all the elastic paddles 11 are used to overlap and abut against one end of the wire core to form the bundling and fixing port 10 .

[0057] From the above description, it can be seen that a plurality of elastic paddles 11 are arranged in the insulating chamber to limit different positions on the cable core, and since the elastic paddles 11 are staggered, the directions of the forces applied to the cable core are different. The effect of combining them together is to bind and fix the cable core or the insulating surface part thereof.

[0058] Furthermore, each of the warning identification elements 3 is composed of at least one of a charged identification, a number identification and a usage type identification.

[0059] From the above description, it can be seen that each of the warning signs 3 can be a combination of a live sign, a number sign and a usage type sign, and can be flexibly selected according to the wire core information to meet the operational requirements in different situations.

[0060] Please refer to Fig. 9 A method for using a cable core wire protection warning device is applied to the above-mentioned cable core wire protection warning device, comprising the following steps:

[0061] S1. The operator selects an insulating sheath 5 with a warning mark 3 according to the core wire information of the cable core wire;

[0062] S2. The operator installs the selected insulating sheath 5 onto the first insulating housing 1;

[0063] S3, the operator connects the protective cover 12 or the selected functional accessory 4 to the first insulating housing 1;

[0064] S4, the operator inserts the cable core wire into the core access port on the first insulating housing 1, and fixes the cable core wire with the core fastener 2;

[0065] S5. When the cable core protection warning device is not needed, the operator removes and retracts the protection cover 12 or the functional accessory 4, the insulating sheath 5 and the core fixing assembly in sequence.

[0066] From the above description, it can be seen that the beneficial effects of the present invention are: when performing cable core protection warnings on the secondary circuit, first select a suitable insulating sheath 5 with a warning mark 3 according to the actual operating conditions such as the core information, and then install the selected insulating sheath 5 on the first insulating shell 1, and then connect the protective cover 12 or the functional accessory 4 (selected according to actual needs) to the first insulating shell 1, and finally fix the first insulating shell 1 and the core fasteners inside it to the cable core to form a protective warning. When used at night, the mark can be used for warning and has functions such as light indicator 43. The overall protective warning effect is achieved by the operator's customized matching, which is flexible to use, and the sheath and functional accessories can be replaced at any time. It is simple to maintain, helping the operator to intuitively understand the condition of the cable core and bringing convenience to the operation on the secondary circuit.

[0067] Please refer to Figures 1 to 4 , Embodiment 1 of the present invention is:

[0068] A cable core protection warning device comprises a core fixing component and an assembled component; the core fixing component comprises a first insulating shell 1 and a core fastener 2; the core fastener 2 is arranged in the first insulating shell 1, and a core access port is provided on the first insulating shell 1, and the core access port corresponds to the core fastener 2; the assembled component comprises an insulating sheath 5, a protective cover 12, at least two warning signs 3 and at least two functional accessories 4; the warning sign 3 is arranged on the surface of the insulating sheath 5, the insulating sheath 5 is sleeved on the first insulating shell 1, and an installation operation groove 13 is provided on the surface of the protective cover 12; the first insulating shell 1 is detachably connected to the functional accessory 4 or the protective cover 12.

[0069] In this embodiment, each warning sign 3 is composed of at least one of a live sign, a numbered sign, and a usage type sign; the live sign generally adopts a lightning sign to indicate whether the cable core is live, etc., while the numbered sign indicates the number of the cable core to distinguish it from other cores; when working, operators usually need to understand from the work instructions which cores with which labels need to be processed as the work content involves, etc., and the usage type sign generally includes words such as "powered", "spare core", etc.

[0070] In this embodiment, the functional accessory 4 is defined as providing other functions in addition to the insulation protection of the wire core; the functional accessory 4 may have functions such as smoke alarm, light indication, temperature detection, etc. For some cables in an environment where fire is prone to occur, it is possible to consider using a functional accessory 4 with a smoke alarm, which can not only protect the cable, but also provide early warning protection for other devices in the scene. Among them, taking the realization of the light indication function as an example, a functional accessory 4 is a light indicator, which includes a second insulating shell 41, a power supply module 42 and an indicator light 43; the power supply module 42 and the indicator light 43 are both located in the second insulating shell 41, and the power supply module 42 is electrically connected to the indicator light 43; the surface of the second insulating shell 41 corresponding to the position of the indicator light 43 is a transparent outer wall, and the second insulating shell 41 is detachably connected to the first insulating shell 1. The power supply module 42 can be simply powered by a button battery lamp independent power supply, and has good stability. Among them, the color of the second insulating shell 41 can be selected as red or black.

[0071] Therefore, the assembled component parts of a cable core protection warning device have at least the following combinations:

[0072] Combination 1: Select a warning sign 3 with only a number printed on it, such as a warning sign 3 with number ①, and tightly insert it into the outer side of the first insulating housing 1 through the second insulating housing 41;

[0073] Combination 2: Select a warning sign 3 printed with numbers, words and symbols, such as number ①, words “power on” and a lightning symbol, and tightly insert it into the outer side of the first insulating housing 1 through the second insulating housing 41;

[0074] Combination 3: Select a warning identification piece 3 printed with numbers and words, such as number ① and the words “spare core”, and tightly insert it into the outer side of the first insulating housing 1 through the second insulating housing 41;

[0075] Combination 4: Select a warning sign 3 printed with numbers and texts, such as number ①, “electricity” text and lightning symbol, and tightly insert it into the outside of the first insulating shell 1 through the second insulating shell 41, and select a light indicator.

[0076] Please refer to Figures 4 to 6 , Embodiment 2 of the present invention is:

[0077] A cable core protection warning device, based on the above-mentioned embodiment one, is provided with a first connecting part 6 on the first insulating shell 1; a second connecting part 7 corresponding to the first connecting part 6 is provided on the functional accessory 4, and the first connecting part 6 and the second connecting part 7 are detachably connected; the first connecting part 6 is provided with a pin 8, and the second connecting part 7 is provided with a function-starting elastic switch.

[0078] When the functional accessory 4 is installed on the first insulating shell 1, that is, the first connecting part 6 and the second connecting part 7 are detachably connected, the ejector pin 8 abuts against the function-starting elastic switch, and the functional accessory 4 is correspondingly started; taking the above-mentioned light indicator as an example, the function-starting elastic switch can be composed of an elastic control part 44, a moving contact and a control head 45, and the moving contact and the power supply module 42 and the indicator light 43 form a closed loop, the moving contact is arranged on one end of the elastic control part 44, and the control point is arranged on the other end of the elastic control part 44, and the control point corresponds to the ejector pin 8; when the ejector pin 8 hits the control point, the moving contact is driven to close by the elastic control part 44, and the power supply module 42 and the indicator light 43 are connected.

[0079] In addition, the first connecting part 6 is an assembly groove, a thread is provided on the inner wall of the first connecting part 6, the second connecting part 7 is a cylinder matched with the first connecting part 6, and a reverse thread is provided on the circumferential outer wall of the second connecting part 7; the ejector pin 8 is located inside the first connecting part 6, the function start elastic switch is located inside the second connecting part 7, and the first connecting part 6 is threadedly connected to the second connecting part 7.

[0080] In this embodiment, the second connection portion 7 is provided on the protective cover 12. The installation operation slot 13 preferably uses an opening that matches a flat-blade screwdriver carried by the operator. The operator inserts the flat-blade screwdriver into the operation opening to rotate the protective cover 12.

[0081] Please refer to Figure 7 and Figure 8 , Embodiment 3 of the present invention is:

[0082] A cable core wire protection warning device, based on the above-mentioned embodiment 1 or 2, an insulating chamber 9 connected to the core access port is provided in the first insulating shell 1; the core fastener 2 is arranged in the insulating chamber 9, and a constricting and fixing port 10 for the wire to pass through is provided on the core fastener 2, and the constricting and fixing port 10 corresponds to the core access port; the size and shape of the constricting and fixing port 10 are adjustable. In this embodiment, for a straight core, the constricting and fixing port 10 can be in the shape of a plum blossom port, and for a core with a hook, the constricting and fixing port 10 can be in the shape of a flat port.

[0083] Preferably, the wire core fastener 2 includes at least two elastic paddles 11; all the elastic paddles 11 are distributed in sequence in the insulating chamber 9 in the direction close to the wire core access port, and adjacent elastic paddles 11 are staggered, and one end of each elastic paddle 11 used to abut against the wire core corresponds to the wire core access port; in the straight line direction of entering and exiting the wire core access port, one end of all the elastic paddles 11 used to abut against the wire core overlaps to form a convergent fixing port 10.

[0084] Please refer to Fig. 9 , Embodiment 4 of the present invention is:

[0085] A method for using a cable core wire protection and warning device, applied to a cable core wire protection and warning device of embodiment one, two or three, comprises the following steps:

[0086] S1. The operator selects an insulating sheath 5 with a warning mark 3 according to the core wire information of the cable core wire;

[0087] S2. The operator installs the selected insulating sheath 5 onto the first insulating housing 1;

[0088] S3, the operator connects the protective cover 12 or the selected functional accessory 4 to the first insulating housing 1;

[0089] S4, the operator inserts the cable core wire into the core access port on the first insulating housing 1, and fixes the cable core wire with the core fastener 2;

[0090] In this embodiment, the following usages are referred to:

[0091] Usage 1: For cable cores that need to be temporarily protected and warned, if the cable cores are not energized, you can select combination 1 to serve as a warning, telling the operator that the cable core is temporarily removed; when the work is completed, just unplug combination 1.

[0092] Usage 2: For cable cores that need to be temporarily protected and warned, if the cable cores are charged, you can select combination 2 to play a better warning role, telling the operator that the cable cores are temporarily removed and are charged, and should not be touched randomly, and should be careful to prevent electric shock during work. When the work is finished and needs to be resumed, unplug combination 2, and the "charged" text and lightning symbol will serve as a reminder: pay attention to the charge, be careful when resuming work, and prevent electric shock.

[0093] Usage three: For cable core wires that are not used for a long time (spare core), protective measures need to be taken. You can choose combination three. The text "spare core" tells the operator that the cable core wire is a cable core wire that is not used for a long time (spare core). When needed, you can use this spare core.

[0094] Usage four: When working at night, for the cable core wires that need to be temporarily protected and warned, if the cable core wires are charged, you can choose combination four. This combination is printed with the words "powered" and the lightning symbol. At the same time, the indicator light 43 is lit and glows, which plays a better role in warning that there is electricity when working at night, telling the operator that the cable core wire is temporarily removed and is charged. It cannot be touched randomly and should be careful to prevent electric shock during work. When the work is finished and needs to be restored, unplug combination four. The words "powered", the lightning symbol and the indicator light 43 serve as reminders at the same time: pay attention to the power, be careful when restoring to prevent electric shock. When not in use, in order to prevent the button battery from consuming power, the functional accessory 4 can be screwed upward a little to turn off the indicator light 43.

[0095] Furthermore, the above digital numbers have two functions:

[0096] First, the tool number corresponds to the corresponding cable core number or its header number (a common working number for cable cores) one by one, which is convenient for recording. For example, tool No. ① is used on a cable core with header number 801, which can be conveniently recorded as ①→801.

[0097] Secondly, at the end of the work, count the numbers of the tools you brought. If you find that a tool with a certain number is missing, it will be easy to find out that a cable core has not been restored or the tool with that number is left at the scene. For example, if you find that tool No. ① is missing, inform the operator that the cable core 801 has not been restored or tool No. ① is left at the scene.

[0098] S5. When the cable core wire protection warning device is not needed, the operator shall remove and retract the protection cover 12 or the functional accessory 4, the insulating sheath 5 and the core fixing assembly in sequence.

[0099] In summary, the present invention provides a cable core protection warning device and a method of using the same. When performing a cable core protection warning on a secondary circuit, first select a suitable insulating sheath with a warning mark according to the actual operating conditions such as the core information, and then install the selected insulating sheath on the first insulating shell, and then connect the protective cover or the functional accessories selected according to actual needs to the first insulating shell, and finally fix the first insulating shell and the core fasteners inside it to the cable core to form a protection warning. When used at night, the mark can be used for warning and has functions such as light indicator lights. The overall protection warning effect is achieved by the operator's customized matching, which is flexible to use, and the sheath and functional accessories can be replaced at any time. It is simple to maintain, helping the operator to intuitively understand the condition of the cable core and bringing convenience to operations on the secondary circuit.

[0100] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A cable core protection warning device, comprising a core fixing component and an assembled component; The wire core fixing assembly comprises a first insulating shell and a wire core fastener; The wire core fastener is arranged in the first insulating housing, and the first insulating housing is provided with a wire core access port, and the wire core access port corresponds to the wire core fastener; The assembled component includes an insulating sheath, a protective cover, at least two warning signs and at least two functional accessories; The warning mark is arranged on the surface of the insulating sheath, the surface of the protective cover is provided with an installation operation groove, and the first insulating shell is detachably connected to the functional accessory or the protective cover.

2. A cable core protection warning device according to claim 1, characterized in that: One of the functional accessories is a light indicator, which includes a second insulating shell, a power supply module and an indicator light; The power supply module and the indicator light are both located in the second insulating housing, and the power supply module is electrically connected to the indicator light; The surface of the second insulating shell corresponding to the position of the indicator light is a transparent outer wall, and the second insulating shell is detachably connected to the first insulating shell.

3. A cable core protection warning device according to claim 1, characterized in that: The first insulating shell is provided with a first connecting portion; The functional accessory is provided with a second connection portion corresponding to the first connection portion, and the first connection portion and the second connection portion are detachably connected; The first connection part is provided with a pin, and the second connection part is provided with a function-activating elastic switch; When the first connection portion is detachably connected to the second connection portion, the ejector pin abuts against the function activation elastic switch.

4. A cable core protection warning device according to claim 3, characterized in that: The first connection part is a fitting groove, the inner wall of which is provided with a thread, the second connection part is a cylinder matched with the first connection part, and the circumferential outer wall of the second connection part is provided with a reverse thread; The ejector pin is located inside the first connection part, the function activation elastic switch is located inside the second connection part, and the first connection part is threadedly connected to the second connection part.

5. A cable core protection warning device according to claim 1, characterized in that: An insulating chamber connected to the wire core access port is provided in the first insulating shell; The wire core fastener is arranged in the insulating chamber, and the wire core fastener is provided with a bunching and fixing opening for the wire to pass through, and the bunching and fixing opening corresponds to the wire core access opening; The size and shape of the convergence and fixing opening are adjustable.

6. A cable core protection warning device according to claim 5, characterized in that: The wire core fastener comprises at least two elastic picks; All the elastic paddles are sequentially distributed in the insulating chamber in a direction close to the wire core access port, and adjacent elastic paddles are staggered, and one end of each elastic paddle for contacting the wire core corresponds to the wire core access port; In the straight line direction of entering and exiting the wire core access port, all the elastic paddles are used to overlap and abut against one end of the wire core to form the bundling and fixing port.

7. A cable core protection warning device according to claim 1, characterized in that: Each of the warning identification parts is composed of at least one of a live identification, a number identification and a usage type identification.

8. A method for using a cable core wire protection and warning device, applied to a cable core wire protection and warning device as claimed in any one of claims 1 to 7, characterized in that: The steps include: S1. The operator selects an insulating sheath with a warning mark according to the core wire information of the cable core wire; S2. The operator installs the selected insulating sheath onto the first insulating housing; S3. The operator connects the protective cover or the selected functional accessories to the first insulating housing; S4. The operator inserts the cable core wire into the core access port on the first insulating housing, and fixes the cable core wire with the core fastener; S5. When the cable core protection warning device is not needed, the operator removes and retracts the protection cover or the functional accessories, the insulating sheath and the core fixing assembly in sequence.

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