Warning device for lifting platform

Abstract

The warning device for the lifting platform comprises a base, protection plates are arranged on the two sides of the base, a plurality of evenly-distributed through holes are formed in the two sides of each protection plate, a first sliding groove and a second sliding groove are formed in each protection plate, the first sliding grooves are located in the upper portions of the second sliding grooves, and the second sliding grooves are located in the lower portions of the first sliding grooves. Two oppositely-arranged first hydraulic rods are arranged in the first sliding groove, a warning placard slides in the second sliding groove, and a telescopic mechanism is arranged between the warning placard and the first hydraulic rods. According to the device, flexible lifting can be achieved through a telescopic mechanism connected with a warning placard and a first hydraulic rod so as to adapt to different scenes to enhance the warning effect, a third sliding groove and a second hydraulic rod in the base can achieve convenient extending and retracting of the hanging ladder, the stability of the hanging ladder is guaranteed, and people can go up and down more safely and conveniently; when the hanging ladder is not used, the hanging ladder is withdrawn without occupying space, and the interference collision risk is reduced, so that the overall use convenience, safety and warning information transmission efficiency of the lifting platform are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting platforms, in particular to a warning device for lifting platforms. Background Art

[0002] Lifting platforms are widely used in many scenarios involving aerial work or requiring personnel to work at different heights. However, there are certain safety hazards during the use of lifting platforms, and effective warning devices are needed to ensure the safety of surrounding personnel and improve the standardization of operations.

[0003] For some lifting platforms that need to be frequently moved and used in different places, the adaptability and convenience of their warning devices are also particularly important. Traditional warning devices may be inconvenient in installation, operation and maintenance, and cannot meet the diverse needs of actual work; for example, the display of warning signs may not be flexible enough, and the height or angle cannot be adjusted according to different work scenarios and needs; the use of suspended ladders may not be convenient enough, and they cannot be extended and retracted quickly and safely when people need to go up and down.

[0004] For this reason, we propose a warning device for a lifting platform. Utility Model Content

[0005] The main purpose of the present utility model is to provide a warning device for a lifting platform, in order to prevent safety accidents, low work efficiency and other problems caused by inconvenience in operation and maintenance, which bring many hidden dangers to the use of the lifting platform, thereby improving the safety and convenience of the use of the lifting platform, and can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] 18. The repairing kit for automotive dents, according to claim 1, wherein a bottom of the foot stand comprises a through-hole, and the two foot stands are connected by a threaded cantilever cam, and the two foot stands are connected by a threaded cantilever cam. The two foot stands are connected by a threaded cantilever cam, and the two foot stands are connected by a threaded cantilever cam.

[0008] A third slide is provided inside the base, a second hydraulic rod is fixedly installed on the inner wall of one end of the third slide, a push plate is fixedly connected to the output end of the second hydraulic rod, a counterweight plate is clamped on the end of the third slide away from the second hydraulic rod, and a hanging ladder is fixedly connected between the counterweight plate and the push plate.

[0009] By adopting the above technical solution, when it is necessary to extend the warning placard, the first hydraulic rod in the protective plates on both sides starts to extend, and the output end of the first hydraulic rod pushes the first connecting rod and the second connecting rod rotatably connected thereto. Since the multiple groups of first connecting rods and second connecting rods are vertically cross-arranged, as the first hydraulic rod extends, they gradually expand and push the support rod to move downward, and the support rod is fixedly connected to the top of the warning placard, thereby driving the warning placard to slide downward along the second slide groove inside the protective plate. When the warning placard slides to the required height, the first hydraulic rod stops extending. At this time, the warning placard is in the extended state, which can serve as an obvious warning to the surrounding people; when the warning placard is no longer needed to be displayed, the first hydraulic rod is retracted, and the output end of the first hydraulic rod pulls the first connecting rod and the second connecting rod to gradually retract. The support rod moves upward as the first connecting rod and the second connecting rod are retracted, driving the warning placard to slide upward along the second slide groove, and the bottom plate at the bottom of the warning placard matches the groove at the bottom of the second slide groove, ensuring that the warning placard is stably placed inside the protective plate when it is retracted;

[0010] When the suspension ladder needs to be used, the second hydraulic rod at one end of the third slide groove inside the base starts to extend, and the output end of the second hydraulic rod pushes the push plate to move in the third slide groove, and the push plate pushes the suspension ladder fixedly connected to it to move toward the third slide groove away from the end of the second hydraulic rod. The other end of the suspension ladder is connected to the counterweight plate. With the push of the push plate, the counterweight plate slides in the third slide groove until the suspension ladder is completely pushed out of the base, allowing people to go up and down the lifting platform; when the suspension ladder is not needed, the second hydraulic rod contracts, and the output end of the second hydraulic rod pulls the push plate to move in the direction of the second hydraulic rod, and the push plate pulls the suspension ladder back into the third slide groove, and the suspension ladder drives the counterweight plate to move in the direction of the second hydraulic rod until the suspension ladder is completely retracted into the third slide groove inside the base.

[0011] Furthermore, an installation cavity is provided inside the base, and a battery pack is provided in the installation cavity.

[0012] By adopting the above technical solution, first, it provides a power source for the first hydraulic rod in the protective plates on both sides and the second hydraulic rod at one end of the third slide groove inside the base. In the absence of external power supply, the battery pack can ensure the normal raising and retraction of the warning signboard and the extension and retraction of the suspension ladder. This enables the warning device to maintain good working performance in different usage scenarios. Whether in temporary sites or areas without fixed power supply, it can reliably play the role of warning and assisting personnel to go up and down; at the same time, installing the battery pack in the installation cavity can effectively protect the battery pack from the influence of the external environment, such as dust, moisture, etc., thereby extending the service life of the battery pack.

[0013] Furthermore, two warning lights are fixedly mounted on the lower outer sides of the two protective plates.

[0014] By adopting the above technical solution, the warning light can emit a striking light in a dimly lit environment or at a long distance, attracting the attention of people around, which is crucial to improving the safety around the lifting platform, especially during night operations or low visibility conditions. The warning light can effectively remind passers-by to notice the existence of the lifting platform and avoid accidents such as collisions. At the same time, combined with the liftable warning signboards, a multi-level warning system is formed, which visually gives people around stronger warning signals to ensure the safe use of the lifting platform.

[0015] Furthermore, an alarm is fixedly installed on the outside of the two protective plates and between the two warning lights.

[0016] By adopting the above technical solution, when the lifting platform is in operation or an emergency occurs, the alarm can emit a loud sound signal, which can effectively penetrate the surrounding noise in a noisy working environment and attract people's attention. Together with the warning lights and liftable warning signs, it forms a full-dimensional warning system that combines vision and hearing. In actual application, when the lifting platform starts to run, an alarm sounds to remind the surrounding people to pay attention and avoid approaching the running equipment. In the event of a fault or abnormal situation, such as overload, equipment failure, etc., the alarm can promptly emit a continuous alarm to warn the operator and surrounding people to take corresponding measures to ensure the safety of personnel and the normal operation of equipment. The alarm further improves the warning effect and safety of the warning device for the lifting platform.

[0017] Furthermore, a guardrail is fixedly connected to the top of the base and located between the two guard plates, and a regulator is fixedly mounted on the guardrail.

[0018] By adopting the above technical solution, the guardrail can effectively prevent people from accidentally slipping from the edge of the lifting platform, greatly improving the safety of the working environment. During the operation of the lifting platform, shaking or sudden situations may occur. The presence of the guardrail can give workers a sense of psychological security, allowing them to work more attentively. At the same time, the fixed connection method of the guardrail ensures that it can remain stable under various circumstances and will not easily loosen or be damaged.

[0019] Through the controller, the operator can easily control the various parts of the warning device. The operator can control the first hydraulic rod to adjust the height of the warning signboard so that it can play the best warning effect under different environments and needs. The second hydraulic rod can also be operated to push out or retract the ladder to meet the needs of people going up and down the lifting platform. In addition, the controller can also control the switch and flashing mode of the warning light, as well as the start and stop of the alarm, so as to flexibly adjust the intensity and type of the warning signal according to actual conditions. This centralized control method improves the operating convenience and efficiency of the device, allowing operators to quickly and accurately adjust the warning device to ensure the safe operation of the lifting platform.

[0020] Furthermore, a protective door is rotatably connected between the two protective plates away from the protective fence, and a handle is provided on the outer side of the protective door.

[0021] By adopting the above technical solution, when the lifting platform is in a stationary state or a working state, the protective door can be closed to prevent unauthorized personnel from accidentally entering the lifting platform area and avoid danger; at the same time, it can also prevent objects or personnel on the platform from accidentally falling during the operation of the lifting platform; through the setting of the protective door, the personnel entering the lifting platform can be restricted and managed, and only authorized personnel can open the protective door by the handle to enter the platform, ensuring the safe and standardized use of the lifting platform; the protective door is connected to the protective plate, which increases the structural stability of the entire device. During the operation of the lifting platform, the protective door can share part of the external force, reduce the force on the protective plate, and improve the wind resistance and earthquake resistance of the entire device;

[0022] The design of the handle should conform to ergonomic principles and be easy for the operator to grasp and operate. In an emergency, the operator can quickly open the protective door through the handle for emergency evacuation or rescue.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] (1) The utility model provides a warning device for a lifting platform. The warning sign is connected to the first hydraulic rod through a telescopic mechanism and can be raised and lowered according to actual needs. In this way, the height of the warning sign can be flexibly adjusted so that it can be in the best visible position in different working scenes and environments, thereby enhancing the pertinence and adaptability of the warning effect. For example, in a site with high obstacles, the warning sign can be raised to ensure its visibility; in an area with dense crowds and low sight lines, the height of the warning sign can be appropriately lowered to make it easier to be noticed. This adjustability enables the warning device to better adapt to various complex working environments and improves the efficiency of conveying warning information.

[0025] (2) The utility model is a warning device for a lifting platform. The third slide groove and the second hydraulic rod arranged inside the base realize the convenient extension and retraction of the hanging ladder. When personnel need to go up and down the lifting platform, the second hydraulic rod is activated to quickly push the hanging ladder out of the base for personnel to use. The counterweight plate connected to one end of the hanging ladder slides smoothly under the push of the push plate, ensuring the stability of the hanging ladder during the extension and retraction process. This design makes it safer and more convenient for personnel to go up and down the lifting platform, avoiding safety accidents caused by temporary construction of simple ladders or improper climbing; at the same time, when the hanging ladder is not needed, it can be completely retracted into the third slide groove inside the base, without taking up additional space, reducing the interference of the hanging ladder on the surrounding environment and the potential risk of collision, and improving the overall convenience and safety of the lifting platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The utility model is a structural schematic diagram of a warning device for a lifting platform.

[0027] Figure 2 This is a schematic diagram of the unfolded structure of the telescopic mechanism of a warning device for a lifting platform according to the present invention.

[0028] Figure 3 This is a top view of the interior of the base of a warning device for a lifting platform according to the present invention.

[0029] In the figure: 1. Base; 2. Protective plate; 3. Through hole; 4. First slide; 5. Second slide; 6. First hydraulic rod; 7. First connecting rod; 8. Second connecting rod; 9. Support rod; 10. Warning placard; 11. Bottom plate; 12. Telescopic mechanism; 13. Mounting cavity; 14. Third slide; 15. Second hydraulic rod; 16. Push plate; 17. Counterweight plate; 18. Ladder; 19. Warning light; 20. Siren; 21. Guardrail; 22. Controller; 23. Protective door; 24. Handle; 25. Battery pack. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0031] In order to prevent the inconvenience of operation and maintenance, which may lead to safety accidents, low work efficiency and other problems, and bring many hidden dangers to the use of lifting platforms, the safety and convenience of the lifting platforms can be improved. Figure 1 、 Figure 2 、 Figure 3 As shown, a warning device for a lifting platform includes a base 1, and protective plates 2 are provided on both sides of the base 1, and multiple evenly distributed through holes 3 are provided on both sides of the protective plates 2. A first slide groove 4 and a second slide groove 5 are respectively provided inside the protective plates 2, and the first slide groove 4 is located at the upper part of the second slide groove 5. Two oppositely arranged first hydraulic rods 6 are provided inside the first slide groove 4, and a warning placard 10 is slid inside the second slide groove 5. A telescopic mechanism 12 is provided between the warning placard 10 and the first hydraulic rod 6. The telescopic mechanism 12 includes a first connecting rod 7 rotatably connected to the output end of one of the first hydraulic rods 6 and a second connecting rod 8 rotatably connected to the output end of the other first hydraulic rod 6. The first hydraulic rod 6 and the second connecting rod 8 are vertically crossed and provided with multiple groups, and the bottom end is fixedly connected to a support rod 9, and the support rod 9 is fixedly connected to the top of the warning placard 10. The bottom end of the warning placard 10 is provided with a bottom plate 11 matching the groove at the bottom end of the second slide groove 5;

[0032] A third slide groove 14 is provided inside the base 1, and a second hydraulic rod 15 is fixedly installed on the inner wall of one end of the third slide groove 14. A push plate 16 is fixedly connected to the output end of the second hydraulic rod 15. A counterweight plate 17 is clamped on the end of the third slide groove 14 away from the second hydraulic rod 15, and a hanging ladder 18 is fixedly connected between the counterweight plate 17 and the push plate 16.

[0033] During use, when the warning placard needs to be extended, the first hydraulic rod 6 in the protective plates on both sides starts to extend, and the output end of the first hydraulic rod 6 pushes the first connecting rod 7 and the second connecting rod 8 rotatably connected thereto. Since multiple groups of first connecting rods 7 and second connecting rods 8 are arranged vertically crosswise, as the first hydraulic rod 6 extends, they gradually unfold and push the support rod 9 to move downward. The support rod 9 is fixedly connected to the top of the warning placard 10, thereby driving the warning placard 10 to slide downward along the second slide groove 5 inside the protective plate. When the warning placard 10 slides to the required height, the first hydraulic rod 6 stops. When the warning placard 10 is not needed to be displayed, the first hydraulic rod 6 is retracted, and the output end of the first hydraulic rod 6 pulls the first connecting rod 7 and the second connecting rod 8 to gradually retract. The support rod 9 moves upward as the first connecting rod 7 and the second connecting rod 8 retract, driving the warning placard 10 to slide upward along the second slide 5. The bottom plate 11 at the bottom end of the warning placard 10 matches the groove at the bottom end of the second slide 5, ensuring that the warning placard 10 is stably placed inside the protective plate when it is retracted.

[0034] When the lifting platform 18 is not needed, the second hydraulic rod 15 is retracted, and the output end of the second hydraulic rod 15 pulls the push plate 16 to move in the third slide groove 14, and the push plate 16 pulls the lifting platform 18 back into the third slide groove 14, and the lifting platform 18 drives the counterweight plate 17 to move in the direction of the second hydraulic rod 15 until the lifting platform 18 is completely retracted into the third slide groove 14 inside the base 1.

[0035] For example, Figure 3 As shown, the present invention further includes that a mounting cavity 13 is provided inside the base 1 , and a battery pack 25 is provided in the mounting cavity 13 .

[0036] When in use, first, it provides a power source for the first hydraulic rod 6 in the protective plates on both sides and the second hydraulic rod 15 at one end of the third slide groove 14 inside the base 1. In the absence of external power supply, the battery pack 25 can ensure the normal raising and retraction of the warning sign 10 and the pushing out and retraction of the suspension ladder 18. This enables the warning device to maintain good working performance in different usage scenarios. Whether in temporary sites or areas without fixed power supply, it can reliably play the role of warning and assisting personnel to go up and down; at the same time, installing the battery pack 25 in the installation cavity 13 can effectively protect the battery pack 25 from the influence of the external environment, such as dust, moisture, etc., thereby extending the service life of the battery pack 25.

[0037] For example, Figure 1 As shown, the present invention further comprises two warning lights 19 fixedly mounted on the lower outer sides of the two protective plates 2 .

[0038] When in use, in a dimly lit environment or at a long distance, the warning light 19 can emit a striking light to attract the attention of people around, which is crucial to improving the safety around the lifting platform, especially during night operations or low visibility conditions. The warning light 19 can effectively remind passers-by to notice the existence of the lifting platform and avoid accidents such as collisions. At the same time, combined with the liftable warning sign 10, a multi-level warning system is formed, which visually gives people around a stronger warning signal to ensure the safe use of the lifting platform.

[0039] For example, Figure 1 As shown, the present invention further includes a siren 20 fixedly mounted on the outside of the two protective plates 2 and between the two warning lights 19 .

[0040] During use, when the lifting platform is in operation or an emergency occurs, the alarm 20 can emit a loud sound signal, which can effectively penetrate the surrounding noise in a noisy working environment and attract people's attention. Together with the warning light 19 and the liftable warning sign 10, a full-dimensional warning system combining vision and hearing is formed; in actual application, when the lifting platform starts to run, an alarm sounds to remind the surrounding people to pay attention and avoid approaching the running equipment; in the event of a fault or abnormal situation, such as overload, equipment failure, etc., the alarm 20 can promptly emit a continuous alarm sound to warn the operator and surrounding people to take corresponding measures to ensure the safety of personnel and the normal operation of equipment. The alarm 20 further improves the warning effect and safety of the warning device for the lifting platform.

[0041] For example, Figure 1As shown, the present invention further includes a guardrail 21 fixedly connected to the top of the base 1 and located between the two guard plates 2 , and a regulator 22 fixedly mounted on the guardrail 21 .

[0042] When in use, the guardrail 21 can effectively prevent personnel from accidentally slipping off the edge of the lifting platform, greatly improving the safety of the working environment. During the operation of the lifting platform, shaking or sudden situations may occur. The presence of the guardrail 21 can give workers a sense of psychological security, allowing them to work more attentively. At the same time, the fixed connection method of the guardrail 21 ensures that it can remain stable under various circumstances and will not easily loosen or be damaged.

[0043] Through the controller 22, the operator can easily control various parts of the warning device. The operator can control the first hydraulic rod 6 to adjust the height of the warning sign 10 so that it can play the best warning effect under different environments and needs. The second hydraulic rod 15 can also be operated to push out or retract the suspension ladder 18 to meet the needs of people going up and down the lifting platform. In addition, the controller 22 can also control the switch and flashing mode of the warning light 19, and the start and stop of the alarm 20, so as to flexibly adjust the intensity and type of the warning signal according to actual conditions. This centralized control method improves the operating convenience and efficiency of the device, allowing operators to quickly and accurately adjust the warning device to ensure the safe operation of the lifting platform.

[0044] For example, Figure 1 As shown, the present invention further includes a protective door 23 rotatably connected between the two protective plates 2 away from the protective fence 21 , and a handle 24 is provided on the outer side of the protective door 23 .

[0045] During use, when the lifting platform is in a stationary state or in a working state, the protective door 23 can be closed to prevent unauthorized personnel from accidentally entering the lifting platform area and avoid danger; at the same time, it can also prevent objects or personnel on the platform from accidentally falling during the operation of the lifting platform; through the setting of the protective door 23, the personnel entering the lifting platform can be restricted and managed, and only authorized personnel can open the protective door 23 through the handle 24 to enter the platform, ensuring the safe and standardized use of the lifting platform; the protective door 23 is connected to the protective plate 2, which increases the structural stability of the entire device. During the operation of the lifting platform, the protective door 23 can share part of the external force, reduce the force on the protective plate 2, and improve the wind resistance and earthquake resistance of the entire device;

[0046] The design of the handle 24 should conform to ergonomic principles and be convenient for the operator to grasp and operate. In an emergency, the operator can quickly open the protective door 23 through the handle 24 for emergency evacuation or rescue.

[0047] When the warning sign 10 is in the state of being extended, the first hydraulic rod 6 is retracted by the regulator 22 on the guardrail 21, and the first hydraulic rod 6 pushes the first connecting rod 7 and the second connecting rod 8 connected thereto for rotation to unfold, pushing the support rod 9 to move downward, and the support rod 9 drives the warning sign 10 to slide downward along the second slide groove 5 inside the guard plate. When the warning sign 10 slides to the required height, the first hydraulic rod 6 stops extending. At this time, the warning sign is in the extended state, playing a warning role; the first hydraulic rod 6 is retracted by the regulator 22, and the first hydraulic rod 6 pulls the first connecting rod 7 and the second connecting rod 8 to retract. The support rod 9 moves upward as the connecting rods are retracted, driving the warning sign 10 to slide upward along the second slide groove 5. The bottom plate 11 at the bottom end of the warning sign 10 matches the groove at the bottom end of the second slide groove 5, ensuring that the warning sign is stably retracted into the inside of the guard plate;

[0048] The second hydraulic rod 15 at one end of the third slide groove 14 inside the base 1 is extended by the regulator 22, and the second hydraulic rod 15 pushes the push plate 16 to move in the third slide groove 14, and the push plate 16 pushes the suspension ladder 18 to move toward the end of the third slide groove 14 away from the second hydraulic rod 15, and the counterweight plate 17 at the other end of the suspension ladder 18 slides in the third slide groove 14 until the suspension ladder is completely pushed out of the base 1, which can be used for people to go up and down the lifting platform; the second hydraulic rod 15 is controlled to retract by the regulator 22, and the second hydraulic rod 15 pulls the push plate 16 to move in its direction, and the push plate 16 pulls the suspension ladder 18 back into the third slide groove 14, and the suspension ladder 18 drives the counterweight plate 17 to move in the direction of the second hydraulic rod 15 until the suspension ladder is completely retracted into the third slide groove 14 inside the base 1;

[0049] The switch and flashing mode of the warning light 19 are controlled by the controller 22. When the light is dim or the warning effect needs to be enhanced, the warning light 19 is turned on and the appropriate flashing mode is selected. The start and stop of the alarm 20 is controlled by the controller 22. When the lifting platform starts to operate or an emergency occurs, the alarm 20 is started to emit a loud sound signal. After the situation is resolved, the alarm 20 is stopped.

[0050] When the lifting platform is in a stationary or working state, the protective door 23 is closed by rotating the handle 24 to prevent unauthorized personnel from entering the lifting platform area, avoid danger, and prevent objects or personnel on the platform from accidentally falling; when an authorized person needs to enter the lifting platform, the protective door 23 is opened by rotating the handle 24. In an emergency, the operator can quickly open the protective door 23 by the handle 24 for emergency evacuation or rescue.

[0051] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A warning device for a lifting platform, comprising a base (1), characterized in that: Both sides of the base (1) are provided with protective plates (2), and both sides of the protective plates (2) are provided with a plurality of evenly distributed through holes (3). The interior of the protective plates (2) is provided with a first slide groove (4) and a second slide groove (5), and the first slide groove (4) is located above the second slide groove (5). Two first hydraulic rods (6) arranged opposite to each other are provided inside the first slide groove (4). A warning placard (10) slides inside the second slide groove (5). A telescopic mechanism (12) is provided between the warning placard (10) and the first hydraulic rod (6). The telescopic mechanism (12) includes a first connecting rod (7) rotatably connected to the output end of one of the first hydraulic rods (6) and a second connecting rod (8) rotatably connected to the output end of the other first hydraulic rod (6), the first hydraulic rod (6) and the second connecting rod (8) are vertically cross-arranged and provided in multiple groups, and the bottom end is fixedly connected to a support rod (9), the support rod (9) is fixedly connected to the top end of the warning sign (10), and the bottom end of the warning sign (10) is provided with a bottom plate (11) matching the groove at the bottom end of the second chute (5); A third slide groove (14) is provided inside the base (1), a second hydraulic rod (15) is fixedly installed on the inner wall of one end of the third slide groove (14), an output end of the second hydraulic rod (15) is fixedly connected to a push plate (16), an end of the third slide groove (14) away from the second hydraulic rod (15) is clamped with a counterweight plate (17), and a hanging ladder (18) is fixedly connected between the counterweight plate (17) and the push plate (16).

2. The warning device for a lifting platform according to claim 1, characterized in that: The base (1) is further provided with a mounting cavity (13) inside, and a battery pack (25) is provided in the mounting cavity (13).

3. The warning device for a lifting platform according to claim 1, characterized in that: Two warning lights (19) are fixedly mounted on the lower outer sides of the two protective plates (2).

4. The warning device for a lifting platform according to claim 1, characterized in that: An alarm (20) is fixedly installed outside the two protective plates (2) and between the two warning lights (19).

5. The warning device for a lifting platform according to claim 1, characterized in that: A guardrail (21) is fixedly connected to the top of the base (1) and located between the two guard plates (2), and a regulator (22) is fixedly mounted on the guardrail (21).

6. The warning device for a lifting platform according to claim 1, characterized in that: A protective door (23) is rotatably connected between the two protective plates (2) away from the protective fence (21), and a handle (24) is provided on the outside of the protective door (23).

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