CN220455452U - Safety warning device for cable withstand voltage test - Google Patents
Safety warning device for cable withstand voltage test Download PDFInfo
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- CN220455452U CN220455452U CN202321622954.7U CN202321622954U CN220455452U CN 220455452 U CN220455452 U CN 220455452U CN 202321622954 U CN202321622954 U CN 202321622954U CN 220455452 U CN220455452 U CN 220455452U
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- withstand voltage
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- 238000012360 testing method Methods 0.000 title claims abstract description 54
- 230000006698 induction Effects 0.000 claims abstract description 37
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- 230000001939 inductive effect Effects 0.000 abstract description 3
- 230000000007 visual effect Effects 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 6
- 238000013459 approach Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008676 import Effects 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of electric tests, and particularly relates to a safety warning device for a cable withstand voltage test, which comprises a fixed fence and a fixed guardrail, wherein an inlet and an outlet are formed in the middle of the fixed guardrail, a movable guardrail is accommodated in the fixed guardrail, rollers are arranged at the bottom of the movable guardrail, two cross bars are fixedly arranged in the movable guardrail and are rotationally connected with a vertical rod, a safety signboard is mounted on the vertical rod, a servo motor is connected to the bottom end of the vertical rod in a transmission manner, and an induction assembly is arranged outside the fixed guardrail and is used for inducing a human body and sending warning information. This device is through under multiple warning effect such as fixed rail, fixed guardrail, response subassembly, movable guardrail and the safety sign board of setting on movable guardrail, can be for the personnel that are close to pressurized equipment with enough and obvious warning, even have the test personnel forget upset safety sign board because of carelessly, but still usable response subassembly plays the warning effect to the mistake personnel of going into.
Description
Technical Field
The utility model belongs to the technical field of electrical tests, and particularly relates to a safety warning device for a cable withstand voltage test.
Background
The industrial frequency alternating current withstand voltage test is the most direct method for identifying the insulation strength of the wires and the cables, has decisive significance for judging whether the wires and the cables are put into operation, and is also an important means for ensuring the insulation level of the wires and the cables and avoiding insulation accidents. The cable withstand voltage test has higher requirements on the cable insulation performance, and is also a method for testing the best cable insulation performance.
Generally, a safety fence or other safety measures should be installed around a field where a power frequency withstand voltage test is performed, so that electric shock is prevented, and a special person should be dispatched if necessary. In high pressure testing, the test personnel must adhere to the high pressure test protocol and operating procedures and strictly prevent non-test personnel from entering the pressurizing equipment by mistake. However, the existing safety fence mostly adopts a guardrail formed by a plurality of railings and supports, and then the safety identification plate is hung on the guardrail, so that the warning effect is not obvious, people can make mistakes, and once test personnel forget to hang the safety identification plate, other personnel are caused to approach to the pressurizing equipment, no warning is given out to the test field, and the safety guarantee coefficient is lower.
For this reason, improvements are needed.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model provides a safety warning device for a cable withstand voltage test, which comprises a fixed fence arranged on three sides of a test field and a fixed guardrail arranged on the other side of the test field, wherein the fixed fence and the fixed guardrail are used for isolating the test field from the outside, an inlet and an outlet for equipment and personnel to enter and exit the test field are formed in the middle of the fixed guardrail, a movable guardrail is accommodated in the fixed guardrail, rollers are arranged at the bottom of the movable guardrail, two cross bars are fixed in the movable guardrail and are rotationally connected with a vertical rod, a safety signboard is arranged on the vertical rod, a servo motor is connected at the bottom end of the vertical rod in a transmission way, and an induction component is arranged outside the fixed guardrail and is used for inducing a human body and sending warning information; in addition, the outside in test field still is provided with the control room, and the inside in control room is provided with the control cabinet, is provided with the controller in the control cabinet, and the outside in control room is provided with alarm bell, warning light and camera, and alarm bell, warning light and camera all are connected with the controller electricity, and the controller still is connected with the power electricity that is arranged in the test field for the power supply of test instrument simultaneously.
Optionally, the sensing assembly includes first induction system and second induction system, left and right sides that import and export are located respectively to first induction system and second induction system, first induction system and second induction system all include the casing, set up infrared inductor on the casing, set up audible-visual annunciator at the casing top and set up the support in the casing below, be provided with laser emitter on the casing of first induction system, be provided with laser receiver on the casing of second induction system, and the laser receiver of second induction system is just relative with the laser emitter of first induction system.
Specifically, the shell of the first sensing device and the shell of the second sensing device are respectively provided with a switch for controlling the start and stop of the first sensing device and the second sensing device; the infrared sensor is used for detecting whether a human body approaches, and the infrared sensor, the audible and visual alarm, the laser transmitter and the laser receiver are all electrically connected with a controller in the control room.
Optionally, an adjusting bolt for adjusting the length of the bracket is further arranged on the bracket.
Optionally, the safety signboard on the vertical rod is located between the two cross rods, and when the servo motor drives the vertical rod to rotate, the safety signboard is not interfered with the two cross rods.
Optionally, an anti-drop hook is further arranged on the movable guardrail and used for preventing the movable guardrail from being separated from the fixed guardrail.
The utility model also comprises other components which can enable the safety warning device for the cable withstand voltage test to be normally used, and the safety warning device is a conventional technical means in the field. In addition, the devices or components not defined in the present utility model are all conventional in the art, such as servo motors, infrared sensors, laser transmitters, laser receivers, and audible and visual alarms.
After a cable withstand voltage test is started in a test field, a tester closes the movable guardrail, drives the vertical rod to rotate by controlling the servo motor, displays the safety signboard to provide a warning effect, then presses down a switch, and starts the first sensing device and the second sensing device; when a person enters a safety warning distance range of 1 meter, after the infrared sensor detects that a human body approaches, a signal is sent to a background controller, the controller gives instructions to an alarm bell, an alarm lamp, an audible and visual alarm and a laser transmitter, the alarm bell, the alarm lamp and the audible and visual alarm act to give an alarm, the laser transmitter continuously transmits a laser beam visible to the human eye to a laser receiver to form a laser grid for informing other people of dangerous areas, the person is forbidden to enter, and meanwhile, the controller cuts off a power supply of a test instrument to stop working so as to ensure the safety of the person and meet the requirement of the cable pressure test on safety; after the test is finished, the test personnel shut down the first sensing device and the second sensing device, drive the safety signboard to turn back through controlling the servo motor, make its back outwards to lock the movable guardrail.
The utility model has the beneficial effects that under the multiple warning effects of the fixed fence, the sensing component, the movable fence, the safety signboard arranged on the movable fence and the like, the safety fence can give enough and obvious warning to the personnel close to the pressurizing equipment, even if the test personnel forget to turn over the safety signboard due to negligence, the sensing component can still be utilized to play a warning effect on the personnel entering by mistake, and meanwhile, the indoor controller is controlled to ensure that the test instrument is automatically powered off, so that the safety and reliability are realized, and the safety guarantee coefficient is high.
Drawings
The utility model will be further described with reference to the drawings and examples.
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a schematic structural diagram of a first sensing device according to the present utility model.
Fig. 3 is a schematic diagram of a safety warning device for a cable voltage test in an embodiment in practical application.
In the figure: 1. the safety protection device comprises a fixed guardrail, a import and export, a movable guardrail, a roller, a cross bar, a vertical bar, a safety signboard, a servo motor, a first induction device, a second induction device, a shell, an infrared inductor, a laser emitter, a laser receiver, a sound and light alarm, a bracket, a regulating bolt, an anti-falling hook, a control room, a camera and a switch.
Detailed Description
The present utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the utility model are shown, and in which embodiments of the utility model are shown. All other embodiments, modifications, equivalents, improvements, etc., which are apparent to those skilled in the art without the benefit of this disclosure, are intended to be included within the scope of this utility model.
Examples
As shown in fig. 1, an embodiment of the present utility model provides a safety warning device for a cable withstand voltage test, including a fixing rail provided at three sides of a test field and a fixing rail 1 provided at the other side of the test field, the fixing rail and the fixing rail 1 being used to isolate the test field from the outside; the middle part of the fixed guardrail 1 is provided with an inlet and outlet 2 for equipment and personnel to enter and exit a test field, the fixed guardrail 1 is internally provided with a movable guardrail 3, the bottom of the movable guardrail 3 is provided with a roller 4, the movable guardrail 3 is provided with an anti-drop hook 18 for preventing the movable guardrail 3 from separating from the fixed guardrail 1, two cross bars 5 are fixed in the movable guardrail 3 and are rotationally connected with a vertical bar 6, a safety signboard 7 is arranged on the vertical bar 6, the bottom end transmission of the vertical bar 6 is connected with a servo motor 8, the safety signboard 7 on the vertical bar 6 is positioned between the two cross bars 5, and when the servo motor 8 drives the vertical bar 6 to rotate, the safety signboard 7 does not interfere with the two cross bars 5; in addition, the outside in test field still is provided with control room 19, and the inside in control room 19 is provided with the control cabinet, is provided with the controller in the control cabinet, and the outside in control room 19 is provided with alarm bell, warning light and camera 20, and alarm bell, warning light and camera 20 all are connected with the controller electricity, and the controller still is connected with the power electricity that is arranged in the test field for the test instrument power supply simultaneously.
As shown in fig. 2, an induction component is arranged outside the fixed guardrail 1 and is used for inducing a human body and sending out warning information; the induction component comprises a first induction device 9 and a second induction device 10, the first induction device 9 and the second induction device 10 are respectively arranged at the left side and the right side of the inlet and outlet 2, the first induction device 9 and the second induction device 10 respectively comprise a shell 11, an infrared inductor 12 arranged on the shell 11, an audible-visual annunciator 15 arranged at the top of the shell 11 and a bracket 16 arranged below the shell 11, a laser emitter 13 is arranged on the shell 11 of the first induction device 9, a laser receiver 14 is arranged on the shell 11 of the second induction device 10, and the laser receiver 14 of the second induction device 10 is just opposite to the laser emitter 13 of the first induction device 9.
It can be understood that the switch 21 is arranged on the shell 11 of the first sensing device 9 and the second sensing device 10 and is used for controlling the start and stop of the first sensing device 9 and the second sensing device 10; the infrared sensor 12 is used for detecting whether a human body approaches, and the infrared sensor 12, the audible and visual alarm 15, the laser transmitter 13 and the laser receiver 14 are all electrically connected with a controller in the control room 19.
The bracket 16 is also provided with an adjusting bolt 17 for adjusting the length of the bracket 16.
Referring to fig. 1-3, the working principle of the utility model is that after a cable withstand voltage test is started in a test field, a tester closes the movable guardrail 3 and drives the vertical rod 6 to rotate by controlling the servo motor 8 to display the safety signboard 7 so as to provide a warning effect, then presses down the switch 21 to start the first sensing device 9 and the second sensing device 10; when a person enters a safety warning distance range of 1 meter, after the infrared sensor 12 detects that a human body approaches, a signal is sent to a background controller, the controller gives instructions to an alarm bell, an alarm lamp, an audible and visual alarm 15 and a laser transmitter 13, the alarm bell, the alarm lamp and the audible and visual alarm 15 act to give an alarm, the laser transmitter 13 continuously transmits a laser beam visible to the human eye to the laser receiver 14 to form a laser grid for informing other people of dangerous areas, the person is forbidden to enter, and meanwhile, the controller cuts off a power supply of a test instrument to stop working so as to ensure the safety of the person and meet the requirement on safety in a cable withstand voltage test; after the test is finished, the test personnel shut down the first sensing device 9 and the second sensing device 10, drive the safety signboard 7 to turn back through controlling the servo motor 8, make its back outwards, and lock the movable guardrail 3.
The servo motor 8, the infrared sensor 12, the laser transmitter 13, the laser receiver 14 and the audible and visual alarm 15 are all known devices in the prior art, and the principle and structure of the device are clear and complete to those skilled in the art.
The embodiments of the present utility model have been described above, the description is illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (5)
1. The utility model provides a cable withstand voltage test's safety warning device, includes the fixed rail of setting at the three side in experimental place and the fixed guardrail of setting at the another side in experimental place, and fixed rail and fixed guardrail are used for keeping apart experimental place and outside, its characterized in that: the middle part of fixed guardrail has been offered and has been used for supplying equipment and personnel to get in and out the exit in experimental place, and has been accomodate movable guardrail in the fixed guardrail, and movable guardrail's bottom is provided with the gyro wheel, and movable guardrail's inside is fixed with two horizontal poles and rotates and be connected with a montant, installs safe signboard on the montant, and the bottom transmission of montant is connected with servo motor, and fixed guardrail's outside is provided with response subassembly for respond to the human body and send warning information.
2. The safety warning device for a cable withstand voltage test according to claim 1, wherein: the induction component comprises a first induction device and a second induction device, the first induction device and the second induction device are respectively arranged at the left side and the right side of the inlet and the outlet, the first induction device and the second induction device comprise a shell, an infrared inductor arranged on the shell, an audible-visual annunciator arranged at the top of the shell and a bracket arranged below the shell, a laser emitter is arranged on the shell of the first induction device, a laser receiver is arranged on the shell of the second induction device, and the laser receiver of the second induction device is just opposite to the laser emitter of the first induction device.
3. The safety warning device for a cable withstand voltage test according to claim 2, wherein: the bracket is also provided with an adjusting bolt for adjusting the length of the bracket.
4. A safety warning device for a cable withstand voltage test according to claim 3, wherein: the safety signboard on the vertical rod is positioned between the two cross rods, and when the servo motor drives the vertical rod to rotate, the safety signboard is not interfered with the two cross rods.
5. The safety warning device for cable withstand voltage test according to claim 4, wherein: the movable guardrail is also provided with an anti-drop hook for preventing the movable guardrail from being separated from the fixed guardrail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321622954.7U CN220455452U (en) | 2023-06-25 | 2023-06-25 | Safety warning device for cable withstand voltage test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321622954.7U CN220455452U (en) | 2023-06-25 | 2023-06-25 | Safety warning device for cable withstand voltage test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220455452U true CN220455452U (en) | 2024-02-06 |
Family
ID=89739760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321622954.7U Active CN220455452U (en) | 2023-06-25 | 2023-06-25 | Safety warning device for cable withstand voltage test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220455452U (en) |
-
2023
- 2023-06-25 CN CN202321622954.7U patent/CN220455452U/en active Active
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