An early warning device for electrical equipment

Abstract

The present application relates to the technical field of electrical equipment, and in particular to an early warning device for electrical equipment. The present application provides an early warning device for electrical equipment, including: an air pump assembly and a telescopic airbag assembly; the air pump assembly includes a base plate, a pedal, a first fixing member, an air pump, a first conductive contact member, a second conductive contact member, a power supply and a first sliding rod member; the telescopic airbag assembly includes a vent plate, a second fixing member, a telescopic airbag member and an early warning sign; the air pump delivers gas to the telescopic airbag member through the vent plate to extend the telescopic airbag of the telescopic airbag member. The present application unfolds the early warning sign of the telescopic airbag member to serve as a reminder, and can also control the telescopic airbag member to shrink, thereby reducing the occupied volume of the early warning device of the present application, so that the device only provides safety reminders when pedestrians are about to cross the safe distance of the electrical equipment.

Description

Technical Field

[0001] The present application relates to the technical field of electrical equipment, and in particular to an early warning device for electrical equipment. Background Art

[0002] The new version of the safety regulations issued by the State Grid Corporation stipulates that voltage levels of 1000v and above are high-voltage electrical equipment, and voltage levels below 1000v are low-voltage electrical equipment. The provisions of the safety distance of electrical high-voltage equipment: 1. The safety distance when the equipment is not shut down, when the voltage level is 10kv and below, the safety distance is 0.7m, and as the voltage level increases, the safety distance becomes longer and longer. 2. The safety distance between the normal range of activities of the staff and the live equipment at work, when the voltage level is 10kv and below, the safety distance is 0.35m, and as the voltage level increases, the safety distance gradually increases. According to the different voltage levels, the prescribed safety distance is also different. Although the existing slogans to prevent approach are set near high-voltage electrical equipment, the warning effect is poor, and many people still ignore it. Some also set fences near high-voltage electrical equipment, but when performing maintenance operations, the fences need to be disassembled, which is also troublesome, and will affect the appearance and take up more space. Therefore, it is urgent to design an anti-approach warning device for high-voltage electrical equipment to solve the shortcomings of the existing technology. Summary of the invention

[0003] In view of this, the present application provides an early warning device for electrical equipment, which can solve the technical defects of the early warning devices of existing electrical equipment, such as cumbersome disassembly and large space occupation.

[0004] The present application provides an early warning device for electrical equipment, the early warning device comprising: an air pump assembly and a telescopic airbag assembly;

[0005] The air pump assembly includes a base plate, a pedal, a first fixing member, an air pump, a first conductive contact member, a second conductive contact member, a power source and a first sliding rod member;

[0006] The first fixing member is arranged on the bottom plate so that the bottom plate is fixed to the periphery of the electrical equipment; the air pump is mounted on the bottom plate; the first end of the first sliding rod member is arranged on the first surface of the bottom plate, and the second end of the first sliding rod member is arranged on the first surface of the pedal so that the pedal can slide along the direction of the first sliding rod member; the first surface of the bottom plate is provided with the first conductive contact member, the first surface of the pedal is provided with the second conductive contact member, and the first surface of the bottom plate is aligned with the first surface of the pedal; the air pump is electrically connected to the first conductive contact member; the power supply is electrically connected to the second conductive contact member; an external force acts on the pedal so that the pedal moves in the direction of the bottom plate, driving the first conductive contact member to contact the second conductive contact member, so that the power supply is electrically connected to the air pump through the first conductive contact member and the second conductive contact member, thereby starting the air pump;

[0007] The telescopic airbag assembly includes a vent plate, a second fixing member, a telescopic airbag component and a warning sign;

[0008] The telescopic airbag component is provided on the first surface of the ventilation plate, and the warning mark is arranged on the surface of the telescopic airbag component; the second surface of the ventilation plate is provided with the second fixing piece, so that the ventilation plate is fixed to the electrical equipment; the ventilation plate is connected with the telescopic airbag component; the air pump is connected with the ventilation plate, so that the air pump transports gas to the telescopic airbag component through the ventilation plate, so that the telescopic airbag of the telescopic airbag component can be expanded.

[0009] Preferably, the telescopic airbag component comprises a connecting tube, a protection frame, a positioning ring, a positioning plate, a telescopic airbag, and a second sliding rod component;

[0010] The first surface of the ventilation plate is connected to the connecting tube, and the protective frame is fixed on the connecting tube; the positioning ring is fixed on the protective frame; the telescopic airbag is fixed on the positioning ring; the first surface of the positioning plate is fixed to the inside of the telescopic airbag, the first end of the second slide rod component is arranged on the second surface of the positioning plate, and the second end of the second slide rod component is arranged on the protective frame, so that the positioning plate can move along the direction of the second slide rod component to make the telescopic airbag shrink along the direction of the second slide rod component.

[0011] Preferably, the first slide bar component includes a first slide bar, a first coil spring and a spring seat, the first surface of the base plate is provided with a first through hole that allows the first slide bar to pass; the outer periphery of the first through hole and the first surface of the pedal are both provided with the spring seat; the first end of the first slide bar is arranged in the first through hole, the second end of the first slide bar is arranged on the first surface of the pedal, the first end of the first coil spring is fixed to the spring seat on the outer periphery of the first through hole, and the second end of the first coil spring is fixed to the spring seat of the pedal, so that the first slide bar is sleeved inside the first coil spring, and when an external force acts on the pedal, the first coil spring is compressed, and the first slide bar slides into the first through hole to make the pedal move toward the base plate.

[0012] Preferably, the first slide bar component includes a first sleeve, a first slide bar and a first coil spring; the first end of the first sleeve is a closed end, and the second end of the first sleeve is an open end; the first end of the first coil spring is fixed inside the first sleeve, the first end of the first slide bar is connected to the second end of the first coil spring, the first end of the first sleeve is fixed on the first surface of the base plate, and the second end of the first slide bar is fixed on the first surface of the pedal; when an external force acts on the pedal, the first coil spring is compressed, and the first slide bar slides into the first sleeve to move the pedal toward the base plate.

[0013] Preferably, the first fixing member is a connecting plate and a fastening screw, or an adhesive component; the connecting plate is fixed to the base plate, and the fastening screw is arranged on the connecting plate; the adhesive component is arranged on the second surface of the base plate.

[0014] Preferably, the second slide rod component includes a second slide rod, a second coil spring and a spring seat, and the positioning plate and the protective frame are both provided with a spring seat; the first end of the second coil spring is fixed to the spring seat of the protective frame, the second end of the second coil spring is fixed to the spring seat of the positioning plate, and the second slide rod is sleeved inside the second coil spring; the air pump transports gas to the telescopic airbag through the ventilation plate, and the telescopic airbag stretches, driving the positioning plate to move in a direction away from the ventilation plate, so that the second coil spring stretches; the air pump does not transport gas to the telescopic airbag through the ventilation plate, and the second coil spring contracts to a natural state, driving the telescopic airbag to contract.

[0015] Preferably, the second slide rod component includes a second sleeve, a second slide rod and a second coil spring; the first end of the second sleeve is a closed end, and the second end of the second sleeve is an open end; the first end of the second coil spring is fixed inside the second sleeve, the first end of the second slide rod is connected to the second end of the second coil spring, the first end of the second sleeve is fixed on the protective frame, and the second end of the second slide rod is fixed on the positioning plate; the air pump transports gas to the telescopic airbag through the ventilation plate, and the telescopic airbag stretches, driving the positioning plate to move in a direction away from the ventilation plate, so that the second coil spring stretches; the air pump does not transport gas to the telescopic airbag through the ventilation plate, and the second coil spring contracts to a natural state, driving the telescopic airbag to contract.

[0016] Preferably, the second fixing member includes a top rod, a connecting block and an adsorption plate; the first end of the top rod is fixed to the second surface of the ventilation plate, the first end of the connecting block is fixed to the second end of the top rod, and the adsorption plate is fixed to the second end of the connecting block.

[0017] Preferably, a through hole is provided on the surface of the telescopic airbag.

[0018] Furthermore, the early warning device also includes a protective film, which is wrapped around the surface of the base plate and the pedal.

[0019] It can be seen from the above technical solutions that this application has the following advantages:

[0020] In the present application, an early warning device for electrical equipment is designed. An external force acts on a pedal. Under the action of a first sliding rod component, the pedal moves toward a direction close to a bottom plate, driving the first conductive contact member to contact the second conductive contact member, so that the power supply is electrically connected to the air pump through the first conductive contact member and the second conductive contact member, and the air pump is started. The air pump can be controlled by setting the first conductive contact member and the second conductive contact member. The air pump transports gas to the telescopic airbag member through the vent plate to extend the telescopic airbag of the telescopic airbag member, thereby achieving control of the telescopic airbag member. The expansion and extension of the telescopic airbag member can play a blocking role, so that the early warning sign can better play a warning role, blocking and reminding when someone approaches the electrical equipment, thereby improving safety. By setting a second fixing member, it is convenient to quickly install the vent plate on the electrical equipment, and install the telescopic airbag member near the electrical equipment to block and warn. The position of the bottom plate can be controlled by the first fixing member, and the distance between the bottom plate and the electrical equipment can be adjusted according to different voltage levels, so that passers-by or maintenance personnel can be reminded when they exceed the safe distance of the electrical equipment to avoid electric shock accidents. When the air pump stops working, the telescopic airbag component is deflated, and the electrical equipment is not blocked at normal times, thereby reducing the occupied space. The design is reasonable and the operation is convenient, which meets the needs of the electrical equipment field. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A structural diagram of an early warning device for electrical equipment provided in an embodiment of the present application;

[0022] Figure 2 This is a structural diagram of the telescopic airbag and the positioning plate provided in an embodiment of the present application. DETAILED DESCRIPTION

[0023] The technical solutions of the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments in the embodiments of the present application are within the scope of protection of the embodiments of the present application.

[0024] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0026] It should be understood that the present application is applied to warning scenarios of electrical equipment, which may be high-voltage transformers, power distribution cabinets, and other electrical equipment that require warnings to prevent outsiders from approaching. Figure 1 , Figure 1 The structural diagram of the early warning device for electrical equipment provided in the embodiment of the present application is as follows: Figure 1 As shown, Figure 1The invention comprises an air pump assembly and a telescopic airbag assembly; the air pump assembly comprises a base plate 8, a pedal 2, a first fixing member, an air pump 7, a first conductive contact member 5, a second conductive contact member 6, a power source and a first sliding rod member; the first fixing member is arranged on the base plate 8, so that the base plate 8 is fixed to the periphery of the electrical equipment; the air pump 7 is installed on the base plate 8; the first end of the first sliding rod member is arranged on the first surface of the base plate 8, and the second end of the first sliding rod member is arranged on the first surface of the pedal 2, so that the pedal can slide along the direction of the first sliding rod member; the first surface of the base plate 8 is provided with a first conductive contact member 5, the first surface of the pedal 2 is provided with a second conductive contact member 6, and the first surface of the base plate 8 is aligned with the first surface of the pedal 2; the air pump 7 is electrically connected to the first conductive contact member 5; the power source is electrically connected to the second conductive contact member 6; an external force The second surface of the pedal 2 is acted on so that the pedal 2 slides toward the bottom plate 8, driving the first conductive contact 5 to contact the second conductive contact 6, so that the power supply is electrically connected to the air pump 7 through the first conductive contact 5 and the second conductive contact 6, and the air pump is started; the telescopic airbag assembly includes a vent plate 17, a second fixing member, a telescopic airbag component and a warning mark 23; the first surface of the vent plate 17 is provided with a telescopic airbag component, and the warning mark 23 is arranged on the surface of the telescopic airbag component; the second surface of the vent plate 17 is provided with a second fixing member, and the second fixing member fixes the vent plate 17 on the electrical equipment; the vent plate 17 is connected to the telescopic airbag component; the air pump 7 is connected to the vent plate 17, so that the air pump transports gas to the telescopic airbag component through the vent plate 17, so that the telescopic airbag of the telescopic airbag component is extended.

[0027] The present application designs an early warning device for electrical equipment. First, the safe distance between the base plate 8 and the electrical equipment is adjusted according to the voltage level of the electrical equipment. The base plate 8 is installed at the safe distance outside the electrical equipment. The position of the base plate 8 is positioned by a first fixing member. At the same time, a warning mark 23 (which can be a safety reminder slogan) is set on the outer surface of the telescopic airbag 22. The telescopic airbag assembly is fixed to the electrical equipment or near the electrical equipment by a second fixing member. At this time, when maintenance personnel or passers-by are about to cross the safe distance, they will step on the pedal 2. At this time, the first slide bar component and the base plate 8 are slidably matched, which will move the pedal 2 in the direction close to the base plate 8, driving the first conductive contact 5 to contact the second conductive contact 6, so that the power supply is electrically connected to the air pump 7 through the first conductive contact 5 and the second conductive contact 6. , connect the air pump 7 to the circuit, at this time the air pump 7 will inflate the vent plate 17 through the vent pipe 9, and then inflate the telescopic airbag component, so that the telescopic airbag component is expanded and stretched, and the telescopic airbag component is unfolded, and the warning mark 23 on the telescopic airbag component is also unfolded, which serves as a reminder; when the passerby or maintenance personnel leave, they will stop stepping on the pedal 2, and then the pedal 2 will rise through the action of the first sliding rod component, so that the first conductive contact 5 is separated from the second conductive contact 6, and the air pump 7 is cut off from the power supply. At this time, the telescopic airbag component will shrink, reducing the occupied volume of the warning device of the present application, so that the device only provides a safety reminder when the pedestrian is about to cross the safe distance of the electrical equipment. For the safety fence that has been placed outside the electrical equipment, the device is a dynamic warning device with a better warning effect.

[0028] Specifically, the air pump 7 is installed on the side of the bottom plate 8 .

[0029] Specifically, the ventilation plate 17 is a hollow structure and a rubber hose is connected between the surface and the telescopic airbag 22 , so that the ventilation plate 17 is in communication with the telescopic airbag component.

[0030] Specifically, the air pump 7 is connected to the ventilation plate 17 through the ventilation pipe 9, and the ventilation pipe 9 is connected to the air outlet end of the air pump 7 and the ventilation plate 17 respectively.

[0031] Specifically, the bottom plate 8 is fixed at a safe distance from the electrical equipment through the first fixing member, and is not close to the electrical equipment, so as not to affect the construction of the electrical equipment.

[0032] Specifically, the telescopic airbag component used in the present application is an existing commonly used telescopic airbag device. Further, the telescopic airbag component of the embodiment of the present application includes a connecting tube 18, a protective frame 19, a positioning ring 20, a positioning plate 24, a telescopic airbag 22 and a second slide bar component; the vent plate 17 is connected to the telescopic airbag 22, the first surface of the vent plate 17 is connected to the connecting tube 18, the protective frame 19 is fixed on the connecting tube 18; the positioning ring 20 is fixed on the protective frame 19; the telescopic airbag 22 is fixed on the positioning ring 20; the first surface of the positioning plate 24 is fixed inside the telescopic airbag, the first end of the second slide bar component is arranged on the second surface of the positioning plate 24, and the second end of the second slide bar component is arranged on the protective frame 19, so that the positioning plate 24 can move along the direction of the second slide bar component to make the telescopic airbag 22 shrink along the direction of the second slide bar component.

[0033] See also Figure 2 , Figure 2 This is a structural diagram of the telescopic airbag and the positioning plate provided in an embodiment of the present application. The telescopic airbag 22 is a U-shaped structure and is made of rubber material. The surface of the telescopic airbag 22 is evenly covered with a clamp. After gas is passed into the telescopic airbag 22, the telescopic airbag 22 will expand, and the warning mark 23 set on the surface of the telescopic airbag component will also unfold, thereby providing a warning effect.

[0034] Specifically, the positioning plate 24 realizes the function of expanding and positioning the telescopic airbag 22 , so that the telescopic airbag 22 forms a frame structure. The positioning plate 24 limits the shape of the outer end of the telescopic airbag 22 , which is more conducive to the deployment of the telescopic airbag 22 .

[0035] Specifically, the first sliding rod component used in the present application is an existing commonly used retractable sliding rod device. Further, the first slide bar component of the embodiment of the present application includes a first slide bar 4, a first coil spring 3 and a spring seat, the first surface of the bottom plate 8 is provided with a first through hole for the first slide bar 4; the outer periphery of the first through hole and the first surface of the pedal 2 are both provided with spring seats; the first end of the first slide bar 4 is arranged in the first through hole, the second end of the first slide bar 4 is arranged in the first surface of the pedal 2, the first end of the first coil spring 3 is fixed on the spring seat of the outer periphery of the first through hole, and the second end of the first coil spring 3 is fixed on the spring seat of the pedal 2, so that the first slide bar 4 is sleeved inside the first coil spring 3, the external force acts on the pedal 2, the first coil spring 3 is compressed, and the first slide bar 4 slides into the first through hole, so that the pedal 2 moves toward the bottom plate 8, driving the first conductive contact 5 to contact the second conductive contact 6; when the external force disappears, the first coil spring 3 returns to its natural state, the first slide bar 4 slides out of the first through hole, driving the second conductive contact 6 to move away from the first conductive contact 5, and finally, the first conductive contact 5 does not contact the second conductive contact 6. Among them, the first slide bar 4 plays a guiding role.

[0036] In addition, in addition to the above structure, the first slide bar component can also be another structure. The first slide bar component of the embodiment of the present application includes a first sleeve, a first slide bar and a first coil spring; the first end of the first sleeve is a closed end, and the second end of the first sleeve is an open end; the first end of the first coil spring is fixed inside the first sleeve, the first end of the first slide bar is connected to the second end of the first coil spring, the first end of the first sleeve is fixed on the first surface of the bottom plate 8, and the second end of the first slide bar is fixed on the first surface of the pedal 2; when an external force acts on the pedal 2, the first coil spring is compressed, and the first slide bar slides into the first sleeve to move the pedal 2 toward the bottom plate 8, driving the first conductive contact 5 to contact the second conductive contact 6, and after the external force disappears, the first coil spring returns to its self-heating state, so that the first slide bar moves toward the pedal 2, driving the second conductive contact 6 to move away from the first conductive contact 5, and finally, the first conductive contact 5 is not in contact with the second conductive contact 6.

[0037] Furthermore, the first fixing member of the embodiment of the present application is a connecting plate and a fastening screw, or an adhesive component; the connecting plate is fixed to the base plate, and the fastening screw is arranged on the connecting plate; the adhesive component is arranged on the second surface of the base plate.

[0038] Specifically, the adhesive component can be a commonly used strong adhesive.

[0039] Specifically, the second slide bar component used in the present application is an existing commonly used retractable slide bar device. Further, the second slide bar component of the embodiment of the present application includes a second slide bar 15, a second coil spring 16 and a spring seat, and the positioning plate 24 and the protection frame 19 are both provided with a spring seat; the first end of the second coil spring 16 is fixed on the spring seat of the protection frame 19, the second end of the second coil spring 16 is fixed on the spring seat of the positioning plate 24, and the second slide bar 15 is sleeved inside the second coil spring 16, and the air pump 7 delivers gas to the telescopic airbag 22 through the vent plate 17, and the telescopic airbag 22 stretches, driving the positioning plate 24 to move in a direction away from the vent plate 17, so that the second coil spring 16 stretches; the air pump 7 does not deliver gas to the telescopic airbag 22 through the vent plate 17, and the second coil spring 16 shrinks to a natural state, driving the telescopic airbag 22 to shrink through the positioning plate 24. The volume occupied by the device is reduced so that the device can provide safety reminders only when pedestrians are about to cross the safety distance of electrical equipment. For safety fences that are always placed outside electrical equipment, the device is a dynamic warning device with a better warning effect.

[0040] In addition, in addition to the above structure, the second slide bar component can also be another structure. The second slide bar component of the embodiment of the present application includes a second sleeve, a second slide bar and a second coil spring; the first end of the second sleeve is a closed end, and the second end of the second sleeve is an open end; the first end of the second coil spring is fixed inside the second sleeve, the first end of the second slide bar is connected to the second end of the second coil spring, the first end of the second sleeve is fixed on the protection frame 19, and the second end of the second slide bar is fixed on the positioning plate 24; the air pump 7 transports the gas to the telescopic airbag 22 through the vent plate 17, and the telescopic airbag 22 stretches, driving the positioning plate 24 to move in a direction away from the vent plate 17, so that the second coil spring stretches; the air pump 7 does not transport the gas to the telescopic airbag 22 through the vent plate 17, the second coil spring shrinks to a natural state, and drives the telescopic airbag 22 to shrink through the positioning plate 24.

[0041] Furthermore, the second fixing member of the embodiment of the present application includes a top rod 12, a connecting block 13 and an adsorption plate 14; the first end of the top rod 12 is fixed to the second surface of the ventilation plate 17, the first end of the connecting block 13 is fixed to the second end of the top rod 12, the adsorption plate 14 is fixed to the second end of the connecting block 13, and the adsorption plate 14 is made of magnetic material.

[0042] Furthermore, a through hole 21 is provided on the surface of the telescopic airbag in the embodiment of the present application, and the through hole 21 is used to deflate the telescopic airbag component to accelerate the contraction of the telescopic airbag component.

[0043] Furthermore, the early warning device of the embodiment of the present application also includes a protective film 1, which is wrapped around the surface of the base plate 8 and the pedal 2 to extend the service life of the base plate 8 and the pedal 2.

[0044] Specifically, the area of ​​the bottom plate 8 can be larger than that of the pedal 2. The pedal 2, the first fixing member, the air pump 7, the first conductive contact member 5, the second conductive contact member 6, the power supply and the first slide bar can be arranged in the center of the bottom plate 8. The larger the area of ​​the bottom plate 8, the easier it is to fix and install the device. Figure 1 As shown, the protective film 1 can surround the outer circumference between the pedal 2 and the base plate 8 .

[0045] The terms "first", "second", "third", "fourth", etc. (if any) in the specification of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0046] It should be understood that in the present application, "at least one (item)" means one or more, and "plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0047] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An early warning device for electrical equipment, characterized in that: include: Air pump assembly and telescopic air bag assembly; The air pump assembly includes a base plate, a pedal, a first fixing member, an air pump, a first conductive contact member, a second conductive contact member, a power source and a first sliding rod member; The first fixing member is arranged on the bottom plate so that the bottom plate is fixed to the periphery of the electrical equipment; the air pump is mounted on the bottom plate; the first end of the first sliding rod member is arranged on the first surface of the bottom plate, and the second end of the first sliding rod member is arranged on the first surface of the pedal so that the pedal can slide along the direction of the first sliding rod member; the first surface of the bottom plate is provided with the first conductive contact member, the first surface of the pedal is provided with the second conductive contact member, and the first surface of the bottom plate is aligned with the first surface of the pedal; the air pump is electrically connected to the first conductive contact member; the power supply is electrically connected to the second conductive contact member; an external force acts on the pedal so that the pedal moves in the direction of the bottom plate, driving the first conductive contact member to contact the second conductive contact member, so that the power supply is electrically connected to the air pump through the first conductive contact member and the second conductive contact member, thereby starting the air pump; The telescopic airbag assembly includes a vent plate, a second fixing member, a telescopic airbag component and a warning sign; The first surface of the ventilation plate is provided with the telescopic airbag component, and the warning mark is arranged on the surface of the telescopic airbag component; the second surface of the ventilation plate is provided with the second fixing member, so that the ventilation plate is fixed to the electrical equipment; the ventilation plate is communicated with the telescopic airbag component; the air pump is communicated with the ventilation plate, so that the air pump transports gas to the telescopic airbag component through the ventilation plate, so that the telescopic airbag of the telescopic airbag component is expanded; The telescopic airbag component includes a connecting tube, a protection frame, a positioning ring, a positioning plate, a telescopic airbag and a second sliding rod component; The first surface of the ventilation plate is connected to the connecting tube, and the protective frame is fixed on the connecting tube; the positioning ring is fixed on the protective frame; the telescopic airbag is fixed on the positioning ring; the first surface of the positioning plate is fixed to the inside of the telescopic airbag, the first end of the second slide rod component is arranged on the second surface of the positioning plate, and the second end of the second slide rod component is arranged on the protective frame, so that the positioning plate can move along the direction of the second slide rod component to make the telescopic airbag shrink along the direction of the second slide rod component.

2. The early warning device according to claim 1, characterized in that: The first slide bar component includes a first slide bar, a first coil spring and a spring seat, the first surface of the base plate is provided with a first through hole into which the first slide bar can slide; the outer periphery of the first through hole and the first surface of the pedal are both provided with the spring seat; the first end of the first slide bar is arranged in the first through hole, the second end of the first slide bar is arranged on the first surface of the pedal, the first end of the first coil spring is fixed to the spring seat on the outer periphery of the first through hole, and the second end of the first coil spring is fixed to the spring seat of the pedal, so that the first slide bar is sleeved inside the first coil spring, and when an external force acts on the pedal, the first coil spring is compressed, and the first slide bar slides into the first through hole to make the pedal move toward the base plate.

3. The early warning device according to claim 1, characterized in that: The first slide bar component includes a first sleeve, a first slide bar and a first coil spring; the first end of the first sleeve is a closed end, and the second end of the first sleeve is an open end; the first end of the first coil spring is fixed inside the first sleeve, the first end of the first slide bar is connected to the second end of the first coil spring, the first end of the first sleeve is fixed on the first surface of the base plate, and the second end of the first slide bar is fixed on the first surface of the pedal; when an external force acts on the pedal, the first coil spring is compressed, and the first slide bar slides into the first sleeve to move the pedal toward the base plate.

4. The early warning device according to claim 1, characterized in that: The first fixing member is a connecting plate and a fastening screw, or an adhesive component; the connecting plate is fixed to the base plate, and the fastening screw is arranged on the connecting plate; the adhesive component is arranged on the second surface of the base plate.

5. The early warning device according to claim 1, characterized in that: The second slide bar component includes a second slide bar, a second coil spring and a spring seat, and the positioning plate and the protective frame are both provided with a spring seat; the first end of the second coil spring is fixed to the spring seat of the protective frame, the second end of the second coil spring is fixed to the spring seat of the positioning plate, and the second slide bar is sleeved inside the second coil spring; the air pump transports gas to the telescopic airbag through the ventilation plate, and the telescopic airbag stretches, driving the positioning plate to move in a direction away from the ventilation plate, so that the second coil spring stretches; the air pump does not transport gas to the telescopic airbag through the ventilation plate, and the second coil spring contracts to a natural state, driving the telescopic airbag to contract.

6. The early warning device according to claim 1, characterized in that: The second slide bar component includes a second sleeve, a second slide bar and a second coil spring; the first end of the second sleeve is a closed end, and the second end of the second sleeve is an open end; the first end of the second coil spring is fixed inside the second sleeve, the first end of the second slide bar is connected to the second end of the second coil spring, the first end of the second sleeve is fixed on the protective frame, and the second end of the second slide bar is fixed on the positioning plate; the air pump transports gas to the telescopic airbag through the ventilation plate, and the telescopic airbag stretches, driving the positioning plate to move in a direction away from the ventilation plate, so that the second coil spring stretches; the air pump does not transport gas to the telescopic airbag through the ventilation plate, and the second coil spring contracts to a natural state, driving the telescopic airbag to contract.

7. The early warning device according to claim 1, characterized in that: The second fixing member includes a top rod, a connecting block and an adsorption plate; the first end of the top rod is fixed to the second surface of the ventilation plate, the first end of the connecting block is fixed to the second end of the top rod, and the adsorption plate is fixed to the second end of the connecting block.

8. The early warning device according to claim 1, characterized in that: The surface of the telescopic airbag is provided with through holes.

9. The early warning device according to claim 1, characterized in that: A protective film is also included, and the protective film is wrapped around the surfaces of the bottom plate and the pedal.

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