Warning device for power system cabinet maintenance

Abstract

The present application provides a warning device for maintenance of power system cabinets, including a fixed housing for a roller shutter machine, a first roller shutter machine is provided in the fixed housing for the roller shutter machine, a driving device is provided at one end of the first roller shutter machine, and a warning device is also provided. The warning device is provided with a heavy plate, a first pull rope and a second pull rope are provided on one side of the heavy plate, the upper end of the first pull rope is connected to the first roller shutter machine, the upper end of the second pull rope is connected to the fixed housing for the roller shutter machine, and a rectangular shell is connected to the other side of the heavy plate. The heavy plate and the rectangular shell form a rectangular box-like structure, and at least three surfaces of the rectangular box-like structure are used to arrange warning signs, which solves the problem of status warning of the maintenance cabinet and adjacent cabinets during maintenance of the power system cabinet.

Description

Technical Field

[0001] The present invention relates to the field of power system panel cabinet maintenance, and in particular to a warning device for power system panel cabinet maintenance. Background Art

[0002] During power system panel maintenance, regulations require that "Work Here" signs be hung on the maintenance panel, and "Operation" signs be hung in front and behind adjacent operating panels. The current method involves personnel carrying the required number of signs, and operators referencing sign installation drawings to hang the appropriate signs on the panels.

[0003] Traditional methods have the following drawbacks: First, traditional signs are typically made of square, flat plastic, making them difficult to carry and posing a risk of slipping and scratching hands. Second, during equipment maintenance, "Operation" signs must be hung in areas adjacent to operating equipment. Installation and removal require personnel to run back and forth to carry these signs, which consumes considerable time and results in significant loss of human resources. Third, different people may have different understandings of sign installation requirements and hanging methods, resulting in overall inconsistency. Operators may also arbitrarily move signs to facilitate their work, creating a chaotic environment.

[0004] In addition, during routine annual maintenance, due to the wide scope of maintenance and the large number of equipment involved, hundreds of cabinet signs need to be installed and removed during installation and layout. During the maintenance process, the relevant cabinet signs need to be dynamically adjusted according to the maintenance progress. If traditional methods are used to install signs, hanging and adjusting the signs will take a lot of time and human resources. In addition, due to the concentrated location of the cabinets, installation errors and other problems are extremely easy to occur, causing management confusion. Summary of the Invention

[0005] The present invention provides an alarm device for maintenance of a power system cabinet, which solves the problem of status alarm of the maintenance cabinet and adjacent cabinets during maintenance of the power system cabinet.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a warning device for maintenance of power system cabinets, including a fixed housing of a roller shutter machine, a first roller shutter machine is provided in the fixed housing of the roller shutter machine, a driving device is provided at one end of the first roller shutter machine, and a warning device is also provided, the warning device is provided with a heavy plate, a first pull rope and a second pull rope are provided on one side of the heavy plate, the upper end of the first pull rope is connected to the first roller shutter machine, and the upper end of the second pull rope is connected to the fixed housing of the roller shutter machine, and a rectangular shell is connected to the other side of the heavy plate, the heavy plate and the rectangular shell form a rectangular box-like structure, and at least three surfaces of the rectangular box-like structure are used to arrange warning signs.

[0007] In the preferred solution, a cavity is provided in the rectangular shell, and the heavy plate is provided with at least two through holes, a U-shaped guide wire is provided in the rectangular shell, the U-shaped open end of the guide wire is connected to the inner side surface of the heavy plate, and the U-shaped open ends of the guide wire are each sleeved with a slidable sliding seat, a first spring is provided between the sliding seat and the inner side surface of the heavy plate, the first spring is sleeved with the guide wire, the lower ends of the first pull rope and the second pull rope pass through the through holes and are respectively connected to each sliding seat, a circular ring is provided on the inside of the guide wire, and an anti-tilt pendant device which is in a vertical state due to gravity is also provided, the anti-tilt pendant device is provided with an unbalance-triggered sound and light alarm device, a hanging ring is provided at the upper end of the anti-tilt pendant device, the hanging ring is slidably sleeved with the circular ring, and one end of the circular ring is connected to the heavy plate.

[0008] In a preferred solution, a sliding hole is provided in the sliding seat, the sliding hole is sleeved with the guide wire, and the diameter of the sliding hole of the sliding seat is larger than the outer diameter of the guide wire.

[0009] In a preferred solution, a weighted base is provided at the bottom end of the anti-tilt pendant device.

[0010] In a preferred solution, a battery and a switch device are provided in the anti-tilt pendant device, the sound and light alarm device is electrically connected to the battery through the switch device, and the anti-tilt pendant device is tilted to make the switch device conductive.

[0011] In the preferred solution, the weighted base is provided with an insulating plate, the insulating plate is provided with a guide rod, the guide rod is sleeved with a second spring, the switch device includes a floating touch plate and a contact seat, the floating touch plate is slidably sleeved on the guide rod, the lower end of the second spring abuts against the insulating plate, the upper end of the second spring abuts against the floating touch plate, a ball is provided on the upper surface of the floating touch plate, and the inclination angle of the anti-tilt pendant device causes the ball to separate from the floating touch plate, so that the floating touch plate contacts the contact seat.

[0012] In a preferred solution, the contact seat is a C-shaped structure, the floating contact plate is arranged in the contact seat, and connecting rods are respectively provided on both sides of the upper end surface of the contact seat, and the connecting rods are slidably connected to the anti-tilt hanging device.

[0013] In the preferred solution, a V-shaped groove is provided in the middle of the floating touch plate, guide vertical plates are provided on both sides of the V-shaped groove, and receiving blocks are provided on the other two sides of the V-shaped groove. The lower end of the receiving block is connected to the insulating plate, and the anti-tilt hanging device is tilted to allow the ball to roll from the contact seat to the receiving block.

[0014] In a preferred solution, a sloped surface is provided on the top of the receiving block, and the sloped surface is lower at one end close to the V-shaped groove. A pull rod is provided at the lower end of the floating touch plate, and the pull rod passes through the insulating plate and the weighted base.

[0015] In a preferred solution, a hollow portion is provided at the lower end of the contact seat, and a detachable contact screw is provided on the side of the floating contact plate, and the contact screw is used to contact the contact seat.

[0016] The beneficial effects of the present invention are: the signboard can be installed and disassembled with one click according to the operation task, which reduces the process of personnel carrying the signboard around, hanging and disassembling the signboard, and checking the installation drawings, greatly shortens the operation time, and reduces the human resource cost; the fixed installation position realizes the neatness of the signboard installation, and at the same time prevents the on-site staff from disassembling it privately, ensuring the safety and standardization of on-site work; the roller shutter machine can be connected to the system for unified control, reducing the time in the process and the probability of error; the warning device adopts an anti-tilt pendant device that can be triggered when the level is lost, to prevent non-operating personnel from accidentally moving the warning device and causing safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and examples.

[0018] Figure 1 It is a schematic diagram of the present invention.

[0019] Figure 2 It is a schematic diagram of a double roller blind machine of the present invention.

[0020] Figure 3 This is a state diagram of the rectangular warning device of the present invention.

[0021] Figure 4 This is the second state diagram of the rectangular warning device of the present invention.

[0022] Figure 5 It is three diagrams of the rectangular warning device state of the present invention.

[0023] Figure 6 1 is a diagram showing four states of the rectangular warning device of the present invention.

[0024] Figure 7 It is an internal view of the rectangular warning device of the present invention.

[0025] Figure 8 This is a diagram of the internal state of the rectangular warning device after an accidental touch of the present invention.

[0026] Figure 9 It is a schematic diagram of the interior of the anti-tilt pendant device of the present invention.

[0027] Figure 10 It is a schematic diagram of a top view of the interior of the anti-tilt pendant device of the present invention.

[0028] Figure 11 It is an internal cross-sectional view of the anti-tilt pendant device of the present invention.

[0029] Figure 12 It is a partial structural diagram of the anti-tilt pendant device of the present invention.

[0030] Figure 13 It is a schematic diagram of the contact seat of the anti-tilt pendant device of the present invention.

[0031] Figure 14 This is a diagram of the anti-tilt pendant device of the present invention in contact with the bottom of the seat.

[0032] Figure 15 It is a cross-sectional view of the anti-tilt pendant device of the present invention in an inclination state.

[0033] Figure 16 It is an oblique view of the anti-tilt pendant device of the present invention in an inclination state.

[0034] Figure 17 It is a connection diagram of the anti-tilt pendant device system of the present invention.

[0035] Figure 18 It is an automatic control installation flow chart of the present invention.

[0036] In the figure: anti-tilt pendant device 1; hanging ring 101; roller shutter fixed shell 2; shielding part 201; warning device 3; counterweight bar 301; first pull rope 302; second pull rope 303; weight plate 304; rectangular shell 305; through hole 306; guide wire 307; ring 308; ring connecting part 309; sliding seat 310; first spring 311; first roller shutter 4; weighted base 5; insulating plate 501; guide rod 502; receiving block 503; second roller shutter 6; battery 7; buzzer 8; switch device 9; floating contact plate 901; contact seat 902; second spring 903; ball 904; connecting rod 905; ball limit frame 906; concave cavity area 907; guide vertical plate 908; V-groove 909; pull rod 910; contact screw 911; warning light 10; circuit board 11. DETAILED DESCRIPTION

[0037] Example 1:

[0038] like Figure 1-18 In the present invention, a warning device for maintenance of a power system cabinet includes a roller shutter fixed shell 2, a first roller shutter 4 is provided in the roller shutter fixed shell 2, a driving device is provided at one end of the first roller shutter 4, and a warning device 3 is also provided. The warning device 3 is provided with a heavy plate 304, and a first pull rope 302 and a second pull rope 303 are provided on one side of the heavy plate 304. The upper end of the first pull rope 302 is connected to the first roller shutter 4, and the upper end of the second pull rope 303 is connected to the roller shutter fixed shell 2. The other side of the heavy plate 304 is connected to a rectangular shell 305. The heavy plate 304 and the rectangular shell 305 form a rectangular box-like structure, and at least three surfaces of the rectangular box-like structure are used to arrange warning signs.

[0039] A driving motor is provided at one end of the first roller shutter machine 4, and the number of rotations of the driving motor is controlled by the control room. The fixed shell 2 of the roller shutter machine is fixed to the top of the power system cabinet by a clamp, a suction cup or a bolt, etc., and a shielding part 201 is provided at the front end. The warning device 3 can be lowered for display or lifted up to be covered by the shielding part 201.

[0040] The upper end of the first pull rope 302 is wound on the first roller shutter machine 4. In order to ensure the balance of both ends of the warning device 3, pull ropes are provided at both ends of the warning device 3.

[0041] The warning device 3 has four states. In the first state, the warning device 3 is in a state of being blocked by the blocking portion 201, the second pull rope 303 is in a relaxed state, and the first pull rope 302 is tightened; in the second state, as the lowering length of the first pull rope 302 increases, the second pull rope 303 is gradually tightened, and the warning device 3 moves down a distance as a whole. Since the heavy plate 304 is heavy and the rectangular shell 305 is light, the heavy plate 304 is in a nearly vertical state with a slight inclination, and the outer side of the heavy plate 304 faces outward. At this time, the outer side of the heavy plate 304 serves as a warning surface; in the third state, the lower end of the first pull rope 302 continues to move downward, and since the second pull rope 303 is tightened, the heavy plate 304 flips around the connection at the lower end of the second pull rope 303, and one side of the rectangular shell 305 serves as a warning surface; in the fourth state, the first pull rope 302 continues to be lowered until the outer side of the heavy plate 304 faces inward, and the other side of the rectangular shell 305 serves as a warning surface.

[0042] In the preferred embodiment, a cavity is provided in the rectangular shell 305, and the heavy plate 304 is provided with at least two through holes 306. A U-shaped guide wire 307 is provided in the rectangular shell 305. The U-shaped open end of the guide wire 307 is connected to the inner side of the heavy plate 304. The U-shaped open ends of the guide wire 307 are all covered with a slidable sliding seat 310. A first spring 311 is provided between the sliding seat 310 and the inner side of the heavy plate 304. The first spring 311 is sleeved with the guide wire 307. The lower ends of the first pull rope 302 and the second pull rope 303 pass through the through holes 306 and are respectively connected to each sliding seat 310. A ring 308 is provided on the inside of the guide wire 307. An anti-tilt pendant device 1 is also provided, which is in a vertical state due to gravity. An unbalanced sound and light alarm device is provided in the anti-tilt pendant device 1. A hanging ring 101 is provided at the upper end of the anti-tilt pendant device 1. The hanging ring 101 is slidably sleeved with the ring 308, and one end of the ring 308 is connected to the heavy plate 304.

[0043] Under normal conditions, the warning device 3 changes its posture under the joint action of the first pull rope 302 and the second pull rope 303. At this time, since the sliding seat 310 is tightened, the hanging ring 101 slides along the circular ring 308 during the whole process, and the warning device 3 flips relative to the anti-tilt pendant device 1. There will be no obstacles on the path of the anti-tilt pendant device 1, so the anti-tilt pendant device 1 is always in a vertical position. When other personnel mistakenly operate the warning device 3 and lift the warning device 3 or pick up the warning device 3 to flip it, as long as any one of the first pull rope 302 and the second pull rope 303 loses tension, the sliding seat 310 will move along the guide wire 307 to a position close to the circular ring 308 under the elastic force of the first spring 311, hit the anti-tilt pendant device 1 and stop on the moving path of the anti-tilt pendant device 1. At this time, the anti-tilt pendant device 1 is blocked and tilted, and the anti-tilt pendant device 1 emits an audible and visual alarm.

[0044] The circular ring 308 is connected to the inner side of the heavy plate 304 via the circular ring connecting portion 309 , and the circular ring connecting portion 309 also blocks the movement of the anti-tilt pendant device 1 relative to the warning device 3 .

[0045] The rectangular shell 305 is made of transparent or translucent material.

[0046] In a preferred embodiment, a sliding hole is provided in the sliding seat 310 , and the sliding hole is sleeved with the guide wire 307 . The diameter of the sliding hole of the sliding seat 310 is larger than the outer diameter of the guide wire 307 to ensure that the sliding seat 310 can move along the curve.

[0047] In a preferred solution, a weighted base 5 is provided at the bottom end of the anti-tilt pendant device 1 .

[0048] The weighted base 5 can move the overall center of the anti-tilt pendant device 1 downward to maintain the vertical state of the anti-tilt pendant device 1, and can increase the inertia of the anti-tilt pendant device 1 to appropriately reduce the sensitivity of the anti-tilt pendant device 1.

[0049] In a preferred embodiment, a battery 7 and a switch device 9 are provided in the anti-tilt pendant device 1 , the sound and light alarm device is electrically connected to the battery 7 via the switch device 9 , and the anti-tilt pendant device 1 is tilted to turn on the switch device 9 .

[0050] A concave cavity area 907 is provided in the anti-tilt pendant device 1, and an audible and visual alarm device is provided in the concave cavity area 907. The audible and visual alarm device includes a buzzer 8 and a warning light 10. The warning light 10 can be a light-emitting diode, and the battery 7 can be a button battery. The buzzer 8 and the warning light 10 are connected in series. A circuit board 11 is also provided. The circuit board 11 is provided with necessary electrical components, and the buzzer 8 supplies power to the circuit board 11.

[0051] In the preferred embodiment, the weighted base 5 is provided with an insulating plate 501, a guide rod 502 is provided on the insulating plate 501, a second spring 903 is sleeved on the guide rod 502, the switch device 9 includes a floating touch plate 901 and a contact seat 902, the floating touch plate 901 is slidably sleeved with the guide rod 502, the lower end of the second spring 903 abuts against the insulating plate 501, the upper end of the second spring 903 abuts against the floating touch plate 901, and a ball 904 is provided on the upper end surface of the floating touch plate 901. The anti-tilt pendant device 1 is tilted so that the ball 904 is separated from the floating touch plate 901, so that the floating touch plate 901 contacts the contact seat 902.

[0052] When the ball 904 is on the floating touch plate 901, gravity compresses the floating touch plate 901, causing the second spring 903 to be compressed. At this time, the floating touch plate 901 is separated from the contact seat 902. When the anti-tilt pendant device 1 flips over a certain angle, the ball 904 slides from the side of the floating touch plate 901, causing the total weight of the floating touch plate 901 to be reduced. Under the action of the second spring 903, the floating touch plate 901 moves upward and touches the contact seat 902.

[0053] The positive and negative poles of the battery 7 are electrically connected to the floating contact plate 901 and the contact seat 902 respectively. When the floating contact plate 901 contacts the contact seat 902, the buzzer 8 and the warning light 10 connected in series in the circuit are energized and work, emitting a buzzer and flashing, indicating that the anti-tilt pendant device 1 has been triggered and flipped over a certain angle.

[0054] In a preferred embodiment, the contact seat 902 is a C-shaped structure, the floating contact plate 901 is arranged in the contact seat 902, and connecting rods 905 are respectively provided on both sides of the upper end surface of the contact seat 902. The connecting rods 905 are slidably connected to the anti-tilt pendant device 1.

[0055] A strip groove is provided inside the anti-tilt pendant device 1, and the connecting rod 905 is stuck in the strip groove. When the anti-tilt pendant device 1 is turned over, due to the action of gravity, the floating contact plate 901 will move in the direction of gravity and contact the inner side of the C-type structure of the contact seat 902, turning on the circuit, and the buzzer 8 and warning light 10 will work to alert the operator.

[0056] In order to prevent the position of the ball 904 from being out of control during reversal, a plastic floating ball limit frame 906 can be covered on the guide vertical plate 908 to block the opening above the guide vertical plate 908. When the anti-tilt pendant device 1 is returned to the center, the ball 904 falls back and part of the structure of the ball limit frame 906 is hollowed out to prevent it from affecting the wiring.

[0057] In general, no matter the anti-tilt pendant device 1 tilts too much or is turned over, the sound and light alarm device will be activated to alert the operator, which greatly improves the safety factor during maintenance.

[0058] A delayed shutdown circuit can be set in the circuit board 11. After the sound and light alarm device is triggered, even if the anti-tilt pendant device 1 is reset or the warning device 3 is restored to its original shape, the buzzer 8 and the warning light 10 will still work for a certain period of time to ensure that the warning message can be received by the operator.

[0059] In the preferred embodiment, a V-shaped groove 909 is provided in the middle of the floating contact plate 901, and guide vertical plates 908 are provided on both sides of the V-shaped groove 909. A receiving block 503 is provided on the other two sides of the V-shaped groove 909. The lower end of the receiving block 503 is connected to the insulating plate 501, and the anti-tilt pendant device 1 is tilted to allow the ball 904 to roll from the contact seat 902 to the receiving block 503.

[0060] A channel is provided in the middle of the guide vertical plates 908 on both sides for allowing the ball 904 to pass through. The slope of the V-shaped groove 909 is along the moving direction of the channel. Therefore, when the anti-tilt pendant device 1 is tilted at a small angle, the ball 904 can be stabilized in the middle of the V-shaped groove 909. When the tilt angle is large, the ball 904 flips over the slope of the V-shaped groove 909 and falls onto the receiving block 503, thereby reducing the total weight of the floating touch plate 901.

[0061] In a preferred solution, a sloped surface is provided on the top of the receiving block 503 , and the sloped surface is lower at the end close to the V-shaped groove 909 . A pull rod 910 is provided at the lower end of the floating contact plate 901 , and the pull rod 910 passes through the insulating plate 501 and the weighted base 5 .

[0062] After the ball 904 falls onto the receiving block 503, when the anti-tilt pendant device 1 returns to vertical, since the slope surface is lower at one end close to the V-groove 909 and the height of the V-groove 909 is higher than the receiving block 503, the ball 904 will rest against the side wall of the V-groove 909. At this time, it is necessary to pull the pull rod 910 to make the V-groove 909 drop, and the ball 904 falls back to the center of the V-groove 909. The hanging device is reset, and the alarm is released after a delay.

[0063] In a preferred solution, a hollow portion is provided at the lower end of the contact seat 902 , and a detachable contact screw 911 is provided on the side of the floating contact plate 901 , and the contact screw 911 is used to contact the contact seat 902 .

[0064] The outline of the square hollow portion at the lower end of the contact seat 902 is larger than the outer outline of the floating touch plate 901, which facilitates the floating touch plate 901 to enter the contact seat 902. In order to facilitate the contact between the floating touch plate 901 and the contact seat 902 when the contact seat 902 moves upward, a contact screw 911 is installed on the side of the floating touch plate 901. When the contact seat 902 moves upward, it can be stopped by the contact screw 911 to form contact.

[0065] Real-time example 2:

[0066] A roller shutter sign installation device includes an automatic roller shutter machine, a transparent traction rope, an operating status display sign, and a counterweight bar. The automatic roller shutter machine is installed on the top of the cabinet, the operating status display sign is connected to the automatic roller shutter machine via the transparent traction rope, and the counterweight bar is assembled at the bottom of the operating status display sign.

[0067] There are two roller shutter devices installed in the automatic roller shutter machine on the top. One of them has a "Work Here" sign, and the other has a "Transport" sign.

[0068] The automatic roller shutter machine consists of a rotating motor and control system, a roller, a transmission connection device, and a roller shutter machine housing. The rotating motor and the roller are connected through a transmission gear set, so that the motor drives the roller to rotate.

[0069] When the equipment is assembled, the shutter motor is controlled to rotate and reel the operating status display sign onto the automatic shutter drum on the top of the cabinet, ensuring normal standby. When the sign needs to be installed during equipment maintenance, the operating status display sign on the automatic shutter drum is lowered by controlling the motor to rotate in the opposite direction. The operating status display sign moves downward under the action of the weight bar, completing the installation of the sign.

[0070] Specific process description:

[0071] S1: Create the required operation ticket according to the operation task;

[0072] S2: Start the operation ticket identification and retrieval function and enter S3;

[0073] S3: Extract all cabinets that need to hang signs and corresponding sign information in the operation ticket, and enter S4;

[0074] S4: The system issues the installation instructions for the corresponding cabinet nameplate based on the extracted installation information;

[0075] S5: The local automatic roller shutter machine control box receives the control command and drives the automatic roller shutter machine to the corresponding cabinet;

[0076] S6: After receiving the control command, the signboard roller shutter control module is powered on and rotates to install the relevant signboard;

[0077] S7: The detection device detects whether the sign is installed in place, if it is detected that it is installed in place, it proceeds to S10, if it is detected that it is not installed in place, it proceeds to S8;

[0078] S8: If the position identification device does not detect that the sign is installed at the designated location, an alarm message is sent to the remote terminal;

[0079] S9: After receiving the alarm information, the on-duty personnel go to the site to manually adjust the sign into place. The detection device automatically resets the alarm signal after detecting that the sign is installed in place;

[0080] S10: The installation is complete and the process ends.

[0081] Example 3:

[0082] like Figure 1-18 In the invention, a device for automatically lowering a signboard includes a roller shutter fixed housing 2 installed on the top of a power system cabinet, a first roller shutter 4 and a second roller shutter 6 are provided in the roller shutter fixed housing 2, a driving device is provided at one end of the first roller shutter 4 and the second roller shutter 6, and at least two warning devices 3 are provided. The warning device 3 is a deployable roller shutter structure, a counterweight bar 301 is provided at the lower end of the warning device 3, and a first pull rope 302 is provided at the upper end of the warning device 3, and the upper ends of the first pull ropes 302 of each warning device 3 are respectively wound around the first roller shutter 4 and the second roller shutter 6.

[0083] A control system is also provided. The driving device of the fixed housing 2 of the roller shutter machine is electrically connected to the control system. A driving motor is provided at one end of the first roller shutter machine 4. The driving motor has an encoder that can feedback the lowering position information. The number of rotations of the driving motor is controlled by the control room. The fixed housing 2 of the roller shutter machine is fixed to the top of the power system cabinet by a clamp, a suction cup or a bolt, and a shielding part 201 is provided at the front end. The warning device 3 can be lowered for display or lifted up to be covered by the shielding part 201.

[0084] The warning device 3 can be rolled up on the rotating drum of the first roller blind machine 4 or the second roller blind machine 6. The counterweight bar 301 increases the weight of the lower end of the warning device 3 to prevent the warning device 3 from curling naturally.

[0085] The upper end of the first pull rope 302 is wound on the first roller shutter machine 4. In order to ensure the balance of both ends of the warning device 3, pull ropes are provided at both ends of the warning device 3.

[0086] In the preferred solution, the counterweight bar 301 is fixedly connected to the warning device 3, and an anti-tilt pendant device 1 is provided at the lower middle end of the counterweight bar 301. An imbalance-triggered sound and light alarm device is provided inside the anti-tilt pendant device 1. The anti-tilt pendant device 1 is fixedly connected to the counterweight bar 301, and a weighted base 5 is provided at the bottom end of the anti-tilt pendant device 1.

[0087] If the anti-tilt pendant device 1 is illegally operated by a non-operating personnel, such as lifting the warning device 3 or placing the warning device 3 on the top of the roller shutter machine fixed housing 2, the anti-tilt pendant device 1 will trigger an audible and visual alarm to remind the operating personnel that the warning function of the warning device 3 has failed.

[0088] The weighted base 5 can move the overall center of the anti-tilt pendant device 1 downward to maintain the vertical state of the anti-tilt pendant device 1, and can increase the inertia of the anti-tilt pendant device 1 to appropriately reduce the sensitivity of the anti-tilt pendant device 1.

[0089] In a preferred embodiment, a battery 7 and a switch device 9 are provided in the anti-tilt pendant device 1 , the sound and light alarm device is electrically connected to the battery 7 via the switch device 9 , and the anti-tilt pendant device 1 is tilted to turn on the switch device 9 .

[0090] A concave cavity area 907 is provided in the anti-tilt pendant device 1, and an audible and visual alarm device is provided in the concave cavity area 907. The audible and visual alarm device includes a buzzer 8 and a warning light 10. The warning light 10 can be a light-emitting diode, and the battery 7 can be a button battery. The buzzer 8 and the warning light 10 are connected in series. A circuit board 11 is also provided. The circuit board 11 is provided with necessary electrical components, and the buzzer 8 supplies power to the circuit board 11.

[0091] In the preferred embodiment, the weighted base 5 is provided with an insulating plate 501, a guide rod 502 is provided on the insulating plate 501, a second spring 903 is sleeved on the guide rod 502, the switch device 9 includes a floating touch plate 901 and a contact seat 902, the floating touch plate 901 is slidably sleeved with the guide rod 502, the lower end of the second spring 903 abuts against the insulating plate 501, the upper end of the second spring 903 abuts against the floating touch plate 901, and a ball 904 is provided on the upper end surface of the floating touch plate 901. The anti-tilt pendant device 1 is tilted so that the ball 904 is separated from the floating touch plate 901, so that the floating touch plate 901 contacts the contact seat 902.

[0092] When the ball 904 is on the floating touch plate 901, gravity compresses the floating touch plate 901, causing the second spring 903 to be compressed. At this time, the floating touch plate 901 is separated from the contact seat 902. When the anti-tilt pendant device 1 flips over a certain angle, the ball 904 slides from the side of the floating touch plate 901, causing the total weight of the floating touch plate 901 to be reduced. Under the action of the second spring 903, the floating touch plate 901 moves upward and touches the contact seat 902.

[0093] The positive and negative poles of the battery 7 are electrically connected to the floating contact plate 901 and the contact seat 902 respectively. When the floating contact plate 901 contacts the contact seat 902, the buzzer 8 and the warning light 10 connected in series in the circuit are energized and work, emitting a buzzer and flashing, indicating that the anti-tilt pendant device 1 has been triggered and flipped over a certain angle.

[0094] The above embodiments are merely preferred technical solutions of the present invention and should not be construed as limiting the present invention. The scope of protection of the present invention shall be the technical solutions set forth in the claims, including equivalent alternatives to the technical features of the technical solutions set forth in the claims. In other words, equivalent alternatives and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A warning device for power system cabinet maintenance, characterized by: The invention comprises a roller shutter fixed housing (2), wherein a first roller shutter (4) is provided in the roller shutter fixed housing (2), a driving device is provided at one end of the first roller shutter (4), and a warning device (3) is also provided, wherein the warning device (3) is provided with a heavy plate (304), a first pull rope (302) and a second pull rope (303) are provided on one side of the heavy plate (304), the upper end of the first pull rope (302) is connected to the first roller shutter (4), the upper end of the second pull rope (303) is connected to the roller shutter fixed housing (2), the other side of the heavy plate (304) is connected to a rectangular shell (305), the heavy plate (304) and the rectangular shell (305) form a rectangular box-shaped structure, and at least three surfaces of the rectangular box-shaped structure are used for arranging warning signs; A cavity is provided in the rectangular shell (305), and the weight plate (304) is provided with at least two through holes (306). A U-shaped guide wire (307) is provided in the rectangular shell (305), and the U-shaped opening end of the guide wire (307) is connected to the inner side of the weight plate (304). The U-shaped opening end of the guide wire (307) is covered with a slidable sliding seat (310), and a first spring (311) is provided between the sliding seat (310) and the inner side of the weight plate (304). The first spring (311) is sleeved with the guide wire (307), and the first pull rope ( 302) and the lower end of the second pull rope (303) passes through the through hole (306) and is respectively connected to each sliding seat (310), a circular ring (308) is provided on the inner side of the guide wire (307), and an anti-tilt hanging device (1) in a vertical state due to gravity is also provided, and an unbalance-triggered sound and light alarm device is provided in the anti-tilt hanging device (1), and a hanging ring (101) is provided on the upper end of the anti-tilt hanging device (1), and the hanging ring (101) is slidably sleeved with the circular ring (308), and one end of the circular ring (308) is connected to the heavy plate (304).

2. The power system cabinet maintenance warning device according to claim 1 is characterized by: A sliding hole is provided in the sliding seat (310), and the sliding hole is sleeved with the guide wire (307). The diameter of the sliding hole of the sliding seat (310) is larger than the outer diameter of the guide wire (307).

3. The warning device for power system cabinet maintenance according to claim 1 is characterized by: The bottom end of the anti-tilt hanging device (1) is provided with a weighted base (5).

4. The power system cabinet maintenance warning device according to claim 3 is characterized by: A battery (7) and a switch device (9) are provided in the anti-tilt pendant device (1); the sound and light alarm device is electrically connected to the battery (7) via the switch device (9); and the anti-tilt pendant device (1) is tilted so as to turn on the switch device (9).

5. The warning device for power system cabinet maintenance according to claim 4 is characterized by: The weighted base (5) is provided with an insulating plate (501), a guide rod (502) is provided on the insulating plate (501), a second spring (903) is sleeved on the guide rod (502), the switch device (9) comprises a floating touch plate (901) and a contact seat (902), the floating touch plate (901) and the guide rod (502) are slidably sleeved, the lower end of the second spring (903) abuts against the insulating plate (501), the upper end of the second spring (903) abuts against the floating touch plate (901), a ball (904) is provided on the upper end surface of the floating touch plate (901), and the anti-tilt hanging device (1) is tilted so that the ball (904) is separated from the floating touch plate (901) so that the floating touch plate (901) contacts the contact seat (902).

6. The warning device for power system cabinet maintenance according to claim 5 is characterized by: The contact seat (902) is a C-shaped structure, the floating touch plate (901) is arranged in the contact seat (902), and connecting rods (905) are respectively provided on both sides of the upper end surface of the contact seat (902), and the connecting rods (905) are slidably connected to the anti-tilt hanging device (1).

7. The warning device for power system cabinet maintenance according to claim 6 is characterized by: A V-shaped groove (909) is provided in the middle of the floating contact plate (901), guide vertical plates (908) are provided on both sides of the V-shaped groove (909), and receiving blocks (503) are provided on the other two sides of the V-shaped groove (909). The lower end of the receiving block (503) is connected to the insulating plate (501), and the anti-tilt hanging device (1) is tilted to allow the ball (904) to roll from the contact seat (902) to the receiving block (503).

8. The warning device for power system cabinet maintenance according to claim 7 is characterized by: The top of the receiving block (503) is provided with a sloped surface, and the end of the sloped surface close to the V-shaped groove (909) is lower. The lower end of the floating touch plate (901) is provided with a pull rod (910), and the pull rod (910) passes through the insulating plate (501) and the weighted base (5).

9. The power system cabinet maintenance warning device according to claim 6 is characterized by: A hollow portion is provided at the lower end of the contact seat (902), and a detachable contact screw (911) is provided on the side of the floating contact plate (901), wherein the contact screw (911) is used to contact the contact seat (902).

Images