Anti-electric shock high-voltage cable

Abstract

The invention discloses an anti-electric-shock high-voltage cable, and relates to the technical field of high-voltage cables. Comprising a cable installation part, two traction prompting parts are installed on the cable installation part, the two traction prompting parts are symmetrically arranged, and a power-off protection part is installed on the cable installation part; the power-off protection piece is used for limiting power-off maintenance; a row of pressure supply protection pieces are mounted on the cable mounting piece; by adopting the power-off protection part, the situation that a worker needs to control the power-off of a power switch of the cable installation part firstly when the cable installation part needs to be overhauled can be automatically limited; the invention aims to solve the problem that the existing anti-electric-shock high-voltage cable is inconvenient to limit a worker to ensure that the cable is directly scratched for maintenance when being powered off and electrified when the cable is maintained, so that potential safety hazards are caused.

Description

Technical Field

[0001] This invention relates to the field of high-voltage cable technology, specifically to a high-voltage cable designed to prevent electric shock. Background Technology

[0002] In actual industrial equipment power supply operations, 380V high-voltage cables are frequently used, which are crucial for the normal operation of equipment. After the high-voltage cables are laid, effective sealing is usually required to ensure subsequent waterproofing; otherwise, short circuits can easily occur. Currently, it is not easy to automatically detect excessive pulling when dragging high-voltage cables during installation. Excessive pulling can cause irreversible damage to the cable sheath and core. It is also not easy to ensure that the power is disconnected when workers inspect the cable. Directly cutting the cable while it is energized for maintenance can create safety hazards. Furthermore, it is not easy to automatically control and detect the cable's sealing performance. Once the seal fails, moisture can easily enter, further increasing safety hazards and the risk of damage to electrical equipment.

[0003] Therefore, we propose a high-voltage cable that is resistant to electric shock. Summary of the Invention

[0004] The purpose of this invention is to provide a high-voltage cable that is resistant to electric shock, in order to solve the problem mentioned in the background art that current high-voltage cables are not convenient for restricting workers from ensuring that the power is cut off when repairing the cable, and that directly cutting the cable while it is energized will cause safety hazards.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-voltage cable resistant to electric shock, comprising a cable mounting component, wherein two traction indicator components are mounted on the cable mounting component, the two traction indicator components are symmetrically arranged, and a power failure protection component is mounted on the cable mounting component; the power failure protection component is used to limit power failure maintenance; a row of pressure-applying protection components is mounted on the cable mounting component; one row of pressure-applying protection components is used to prevent leakage; a sealing indicator device is mounted on each of the row of pressure-applying protection components, and the row of sealing indicator devices is used to indicate sealing failure; the cable mounting component includes: a cable sheath and a covering filler, wherein the cable sheath is provided with a covering filler inside; the cable sheath is used for sealing protection.

[0006] Preferably, the cable mounting component further includes: cable cores, wherein the inner lining of the cable cores comprises three cable cores, which are equidistantly distributed.

[0007] Preferably, the pull indication component includes: pull detection strips and power terminals; two rows of pull detection strips are fixedly installed inside the covering filler, and the pull detection strips at both ends are fixedly connected to the two ends of the covering filler; power terminals are slidably installed on the two rows of pull detection strips; the two rows of pull detection strips and power terminals are conductors; the two rows of pull detection strips and power terminals are connected in series with a power supply; the two rows of pull detection strips and power terminals are used to detect excessive pull.

[0008] Preferably, the traction indicator further includes: an electric spring, wherein an electric spring is sleeved on each of the two rows of traction detection strips, and the two electric springs are respectively connected between the two rows of traction detection strips and the electric post.

[0009] Preferably, the power failure protection component includes: a sheath, mounting plates, and surrounding electromagnets. The sheath is fitted onto the cable sheath. Two rows of mounting plates are fixedly mounted on the sheath, and the two rows of mounting plates are aligned. Surrounding electromagnets are fixedly mounted on each of the two rows of mounting plates, and two surrounding electromagnets on the same side are magnetically attracted to each other. The two rows of surrounding electromagnets and the power switch of the cable core are connected in series. The sheath is an elastic plastic shell. The sheath is used to connect to the cable support.

[0010] Preferably, the power failure protection device further includes: a leakage indicator light and a traction indicator light. Three leakage indicator lights are fixedly installed on the casing. Two traction indicator lights are fixedly installed on the casing, and the two traction indicator lights are electrically connected to two traction detection strips at their ends, and the other two traction detection strips are connected by wires.

[0011] Preferably, the pressure protection component includes: a pressure installation pipe, a lower stop block, and a valve pipe. The pressure installation pipe is fixedly installed on the cable sheath, and the inside of the cable sheath is connected to the pressure installation pipe. Two lower stops block are fixedly installed at the bottom of the pressure installation pipe, and there is a gap between the two lower stops block. A valve pipe is fixedly installed on the side of the pressure installation pipe, and a valve is provided on the valve pipe. The valve pipe is used to connect to the air pump.

[0012] Preferably, the pressure protection component further includes: a stop float and a one-way limiting cylinder, wherein the stop float is located inside the pressure installation pipe; the stop float is located above two lower blocks; a one-way limiting cylinder is fixedly installed inside the pressure installation pipe, and the bottom of the one-way limiting cylinder has an inclined structure; the side of the one-way limiting cylinder is provided with a through hole for connecting the valve pipe; and the stop float is used to fit against the one-way limiting cylinder.

[0013] Preferably, the sealing indication device includes: an indication mounting cylinder and a lifting piston, wherein the indication mounting cylinder is threadedly connected to the pressure-applying mounting pipe; the lifting piston is slidably sleeved inside the indication mounting cylinder; and the indication mounting cylinder is used to detect the seal.

[0014] Preferably, the sealing warning device further includes: a warning switch and a push spring; the warning switch is fixedly installed inside the warning mounting cylinder and is located above the lifting piston; the push spring is sleeved inside the warning mounting cylinder; the push spring is connected between the warning mounting cylinder and the lifting piston; the warning switch is electrically connected to a leakage warning light on the same side.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention employs a tension warning device that can automatically detect and alert workers when excessive tension is applied during cable laying, causing excessive stretching of the cable sheath and insulation. By alerting workers, this effectively reduces damage to the cable and improves the safety of cable laying.

[0016] By using power-off protection devices, it is possible to automatically prevent workers from disconnecting the power switch of the cable installation before they need to perform maintenance on it, thereby improving maintenance safety and reducing the risk of electric shock.

[0017] Using a pressure protection device allows workers to pressurize the inside of the cable installation components and then use a sealing indicator device to automatically monitor the internal sealing of the cable installation components. This can better ensure the internal sealing of the cable installation components and reduce safety hazards caused by sealing failure. The pressure protection device also allows for pressurization, which can help remove water if moisture has seeped into the cable installation components. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an anti-electric shock high-voltage cable according to the present invention; Figure 2 This is a cross-sectional view of the internal structure of a high-voltage cable designed to prevent electric shock according to the present invention. Figure 3 This is a schematic diagram showing the installation position of the tension detection strip of the present invention; Figure 4 This is a schematic diagram of the cable mounting component structure of the present invention; Figure 5 For the present invention Figure 3 Enlarged view of the structure of region D in the middle; Figure 6 This is a schematic diagram of the power failure protection component of the present invention; Figure 7 For the present invention Figure 3 Enlarged view of the structure of region E in the middle; Figure 8 For the present invention Figure 2 Enlarged view of the structure of the F region.

[0019] In the diagram: 1. Cable installation component; 101. Cable sheath; 102. Sheathing filler; 103. Cable core; 2. Pulling indicator component; 201. Pulling detection strip; 202. Electrical connection post; 203. Electrical connection spring; 3. Power failure protection component; 301. Sheath; 302. Mounting plate; 303. Enclosing electromagnet; 304. Leakage indicator light; 305. Pulling indicator light; 4. Pressure protection component; 401. Pressure installation pipe; 4011. Lower stop block; 402. Valve pipe; 403. Stop float; 404. One-way limit cylinder; 5. Closure indicator device; 501. Indicator installation cylinder; 502. Lifting piston; 503. Indicator switch; 504. Push spring. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1: Please refer to Figures 1 to 8 As shown: This invention provides a technical solution: a high-voltage cable resistant to electric shock, comprising a cable mounting component 1, two traction indicator components 2 symmetrically arranged on the cable mounting component 1, and a power failure protection component 3 installed on the cable mounting component 1; the power failure protection component 3 is used to limit power failure for maintenance; a row of pressure-applying protection components 4 are installed on the cable mounting component 1; the row of pressure-applying protection components 4 is used to prevent leakage; a sealing indicator device 5 is installed on each of the row of pressure-applying protection components 4, and the row of sealing indicator devices 5 is used to indicate sealing failure; the cable mounting component 1 includes: a cable sheath 101 and a covering filler 102, the cable sheath 101 being provided with the covering filler 102; the cable sheath 101 is used for sealing protection.

[0022] The cable installation component 1 further includes: a cable core 103, with three cable cores 103 equidistantly distributed inside the sheathing filler 102; the pull indication component 2 includes: pull detection strips 201 and power terminals 202, with two rows of pull detection strips 201 fixedly installed inside the sheathing filler 102, and the pull detection strips 201 at both ends fixedly connected to the two ends of the sheathing filler 102; power terminals 202 are slidably installed on the two rows of pull detection strips 201 respectively; the two rows of pull detection strips 201 and power terminals 202 are conductors; the two rows of pull detection strips 201 and power terminals 202 are connected in series with a power source; the two rows of pull detection strips 201 and power terminals 202 are used to detect excessive pull; the pull indication component 2 also includes: a power connection spring 203, with the two rows of pull detection strips 201 and power terminals 202 connected in series with a power source. Each of the 01 components is fitted with a connecting spring 203, which is connected between two rows of tension detection strips 201 and connecting posts 202. The tension warning device 2 can automatically detect and warn workers when excessive tension is applied during cable laying, causing excessive stretching of the cable sheath 101 and the filling sheath 102. By warning workers, damage to the cable is effectively reduced, and the safety of cable laying is improved. The structure is simple, the detection is accurate, and the safety of the input power supply is improved. Once the tension detection strip 201 and the connecting post 202 are separated, the tension warning light 305 will be directly de-energized and extinguished, prompting workers to reduce the tension. The power supply to the tension detection strip 201 and the connecting post 202 can be reconnected during cable installation.

[0023] The power failure protection component 3 includes: a sheath 301, mounting plates 302, and surrounding electromagnets 303. The sheath 301 is sleeved on the cable sheath 101. Two rows of mounting plates 302 are fixedly installed on the sheath 301, and the two rows of mounting plates 302 are aligned. Surrounding electromagnets 303 are fixedly installed on the two rows of mounting plates 302 respectively, and the two surrounding electromagnets 303 on the same side are magnetically attracted to each other. The two rows of surrounding electromagnets 303 are electrically connected to the power supply of the cable core 103. The outer perimeter of the iron 303 is unobstructed. Two rows of electromagnets 303 each have their own independent power adapters connected via wires. These adapters are connected to the on / off switch of the cable core 103 via wires, allowing for control via the on / off switch of the cable core 103. The sheath 301 is a flexible plastic shell used for connecting to cable supports. The power failure protection component 3 also includes: a leakage indicator light 304 and a pull indicator light 305. Three leakage indicator lights 304 are fixedly installed on the sheath 301. Two pull indicator lights 305 are fixedly installed on the cable installation component 1, and the two pull indicator lights 305 are electrically connected to two pull detection strips 201 at their ends. The other two pull detection strips 201 are connected by wires. The power-off protection component 3 can automatically limit the power supply of the cable installation component 1 before maintenance is required, thus improving maintenance safety. By using the power switch of the electromagnet 303 and the cable core 103 in series, it is ensured that the magnetic connection of the electromagnet 303 can only be released after the cable core 103 is de-energized. Otherwise, the sheath 301 will protect the cable installation component 1 from the outside. By limiting maintenance to the priority of power-off, maintenance safety is improved, especially when the cable sheath 101 needs to be cut open for maintenance, avoiding safety hazards caused by forgetting to disconnect the power. The structure is simple and the control is more direct. At the same time, the use of the sheath 301 to protect the cable sheath 101 can further extend the service life of the sheath 301.

[0024] In Example 2, based on Example 1, the pressure protection component 4 includes: a pressure installation pipe 401, lower blocks 4011, and a valve pipe 402. The pressure installation pipe 401 is fixedly installed on the cable sheath 101, and the cable sheath 101 is internally connected to the pressure installation pipe 401. Two lower blocks 4011 are fixedly installed at the bottom of the pressure installation pipe 401, and there is a gap between the two lower blocks 4011. The valve pipe 402 is fixedly installed on the side of the pressure installation pipe 401, and a valve is provided on the valve pipe 402. The valve pipe 402 is used to connect to the air pump. The pressure protection component 4 also includes: a stop float 403 and a one-way limiting cylinder 404. The stop float 403 is located inside the pressure installation pipe 401. The stop float 403 is located above the two lower blocks 4011. A one-way limiting cylinder 404 is fixedly installed inside the pressure-applying installation pipe 401, and the bottom of the one-way limiting cylinder 404 has a sloping structure; the side of the one-way limiting cylinder 404 is provided with a through hole connecting to the valve pipe 402; a stop float 403 is used to fit the one-way limiting cylinder 404; the sealing indication device 5 includes: an indication installation cylinder 501 and a lifting piston 502, the indication installation cylinder 501 is threadedly connected to the pressure-applying installation pipe 401; the lifting piston 502 is slidably sleeved inside the indication installation cylinder 501; the indication installation cylinder 501 is used to detect the seal; the sealing indication device 5 also includes: an indication switch 503 and a push spring 504, the indication switch 503 is fixedly installed inside the indication installation cylinder 501, and the indication switch 503 is located above the lifting piston 502; the push spring 504 is sleeved inside the indicator installation cylinder 501; the push spring 504 is connected between the indicator installation cylinder 501 and the lifting piston 502; the indicator switch 503 is electrically connected to the leakage indicator light 304 on the same side. The use of a pressure protection component 4 allows workers to pressurize the inside of the cable installation component 1, and then, in conjunction with the sealing indicator device 5, automatically monitor the internal sealing of the cable installation component 1. This better ensures the internal sealing of the cable installation component 1, reduces safety hazards caused by sealing failure, and enables automatic detection. The indicator is simple and clear, effectively improving safety. Simultaneously, the pressure protection component 4 allows for pressurization, which can assist in air inflation to remove water if moisture has seeped into the cable installation component 1, ensuring the insulation of the cable installation component 1. The stop float 403 prevents moisture from overflowing from the connecting valve pipe 402, facilitating air pressure inflation to remove water. After the cable mounting component 1 is installed on the cable rack with the pressure protection component 4 facing upwards, and the terminals connecting the cable sheath 101 and the cable core 103 are sealed using tools such as heat shrink tubing, the air pump can be connected through the valve pipe 402 to supply air pressure to the inside of the cable mounting component 1. At this time, under the action of air pressure, the lifting piston 502 will be pushed upwards, compressing the push spring 504 and pressing the indicator switch 503. Similarly, once the cable mounting component 1 leaks, the air pressure inside the cable mounting component 1 decreases. Under the compression of the spring inside the push spring 504, the lifting piston 502 moves downwards and no longer presses the indicator switch 503, thus controlling the leak indicator light 304 to light up.

[0025] The working principle of this embodiment is as follows: First, when laying the cable installation component 1 by pulling one end, if the cable sheath 101 is pulled too much, causing excessive stretching of the cable sheath 101 and the covering filler 102, the elastic stroke of the connecting spring 203 is limited, and it cannot guarantee that the middle tension detection strip 201 and the connecting post 202 can still be in contact and connected. At this time, once the tension detection strip 201 and the connecting post 202 separate, the tension indicator light 305 will directly cut off the power and go out to indicate that the staff needs to reduce the tension. After the cable installation component 1 is installed on the cable rack with the pressure protection component 4 facing upward, after sealing the terminals connecting the cable sheath 101 and the cable core 103 with tools such as heat shrink tubing, air can be supplied to the inside of the cable installation component 1 through the air pump via the valve pipe 402. When the air pressure is applied, the lifting piston 502 will be pushed upward, compressing the push spring 504 and pressing the indicator switch 503. Similarly, if the cable mounting component 1 leaks, the air pressure inside the cable mounting component 1 will decrease. Under the compression of the spring inside the push spring 504, the lifting piston 502 will move downward and no longer compress the indicator switch 503, thus controlling the leakage indicator light 304 to light up. At the same time, if the cable mounting component 1 has not been inspected for a long time and water has seeped into it, it is necessary to inflate it to drain the water. The air pump can be connected to the valve pipe 402 to supply air pressure for drainage. At the same time, even if there is a lot of water inside the cable mounting component 1, when the water level is high, the stop float 403 can float up and fit against the one-way limit cylinder 404 to seal it, preventing direct overflow and further reducing the risk of leakage. When it is necessary to inspect the cable installation component 1, the power switch of the cable core 103 needs to be turned off. At this time, the power supply surrounding the electromagnet 303 is also turned off, which can control the electromagnet 303 to release the magnetic attraction. The covering shell 301 of the position to be inspected can be pushed open to both sides, and the cable installation component 1 of this section can be taken out for inspection.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-voltage cable designed to prevent electric shock, comprising a cable mounting component (1), wherein two pull-in indicators (2) are mounted on the cable mounting component (1), the two pull-in indicators (2) being symmetrically arranged, characterized in that: The cable mounting component (1) is equipped with a power failure protection component (3); the power failure protection component (3) is used to limit power failure maintenance; A row of pressure protection components (4) is installed on the cable mounting component (1); the row of pressure protection components (4) is used to prevent leakage; A sealing indicator (5) is installed on each of the row of pressure protection components (4), and the row of sealing indicator (5) is used to indicate sealing failure; The cable mounting component (1) includes: a cable sheath (101) and a covering filler (102), wherein the cable sheath (101) is provided with a covering filler (102); the cable sheath (101) is used for sealing and protection.

2. The anti-electric shock high-voltage cable according to claim 1, characterized in that: The cable mounting component (1) further includes a cable core (103), wherein the covering filling (102) has three cable cores (103) inside, and the three cable cores (103) are equidistantly distributed.

3. The anti-electric shock high-voltage cable according to claim 1, characterized in that: The traction indicator (2) includes: traction detection strips (201) and power terminals (202). Two rows of traction detection strips (201) are fixedly installed inside the covering filler (102), and the traction detection strips (201) at both ends are fixedly connected to the two ends of the covering filler (102). Power terminals (202) are slidably installed on the two rows of traction detection strips (201). The two rows of traction detection strips (201) and power terminals (202) are conductors. The two rows of traction detection strips (201) and power terminals (202) are connected in series with a power supply. The two rows of traction detection strips (201) and power terminals (202) are used to detect excessive traction.

4. The anti-electric shock high-voltage cable according to claim 1, characterized in that: The traction indicator (2) further includes: an electric spring (203), on which an electric spring (203) is sleeved on each of the two rows of traction detection strips (201), and the two electric springs (203) are respectively connected between the two rows of traction detection strips (201) and the electric post (202).

5. The anti-electric shock high-voltage cable according to claim 1, characterized in that: The power failure protection component (3) includes: a sheath (301), mounting plates (302), and a surrounding electromagnet (303). The sheath (301) is sleeved on the cable sheath (101). Two rows of mounting plates (302) are fixedly installed on the sheath (301), and the two rows of mounting plates (302) are aligned. Surrounding electromagnets (303) are fixedly installed on the two rows of mounting plates (302), and the two surrounding electromagnets (303) on the same side are magnetically attracted to each other. The power switches of the two rows of surrounding electromagnets (303) and the cable core (103) are connected in series. The sheath (301) is an elastic plastic shell. The sheath (301) is used to connect to the cable bracket.

6. The anti-electric shock high-voltage cable according to claim 1, characterized in that: The power failure protection component (3) further includes: a leakage indicator light (304) and a traction indicator light (305). Three leakage indicator lights (304) are fixedly installed on the casing (301). Two traction indicator lights (305) are fixedly installed on the casing (301), and the two traction indicator lights (305) are electrically connected to two traction detection strips (201) at their ends, and the other two traction detection strips (201) are connected by wires.

7. The anti-electric shock high-voltage cable according to claim 1, characterized in that: The pressure protection component (4) includes: a pressure installation pipe (401), a lower stop block (4011), and a valve pipe (402). The pressure installation pipe (401) is fixedly installed on the cable sheath (101), and the cable sheath (101) is internally connected to the pressure installation pipe (401). Two lower stops block (4011) are fixedly installed at the bottom of the pressure installation pipe (401), and there is a gap between the two lower stops block (4011). A valve pipe (402) is fixedly installed on the side of the pressure installation pipe (401), and a valve is provided on the valve pipe (402). The valve pipe (402) is used to connect to the air pump.

8. A high-voltage cable for protection against electric shock according to claim 1, characterized in that: The pressure protection component (4) further includes: a stop float (403) and a one-way limiting cylinder (404). The stop float (403) is located inside the pressure installation pipe (401). The stop float (403) is located above the two lower blocks (4011). The one-way limiting cylinder (404) is fixedly installed inside the pressure installation pipe (401), and the bottom of the one-way limiting cylinder (404) is a sloping structure. The side of the one-way limiting cylinder (404) is provided with a through hole for connecting the valve pipe (402). The stop float (403) is used to fit against the one-way limiting cylinder (404).

9. A high-voltage cable for protection against electric shock according to claim 1, characterized in that: The sealing indication device (5) includes: an indication mounting cylinder (501) and a lifting piston (502). The indication mounting cylinder (501) is threadedly connected to the pressure mounting pipe (401). The lifting piston (502) is slidably sleeved inside the indication mounting cylinder (501). The indication mounting cylinder (501) is used to detect the seal.

10. A high-voltage cable for protection against electric shock according to claim 1, characterized in that: The closed warning device (5) further includes: a warning switch (503) and a push spring (504). The warning switch (503) is fixedly installed inside the warning mounting cylinder (501), and the warning switch (503) is located above the lifting piston (502). The push spring (504) is sleeved inside the warning mounting cylinder (501). The push spring (504) is connected between the warning mounting cylinder (501) and the lifting piston (502). The warning switch (503) is electrically connected to the leakage warning light (304) on the same side.

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