New energy forklift safety warning system

Abstract

The utility model relates to the technical field of safety of new energy forklifts, and particularly discloses a safety warning system of a new energy forklift, which comprises two subsystems, namely a'three-belt one-lamp 'subsystem and a'rear radar' subsystem, the three-belt-one-lamp subsystem is composed of a 24V transformer, a 80V lithium battery, an ignition key, a first control switch, a 10A safety piece, a relay, a left-side straight-line-shaped red warning lamp, a right-side straight-line-shaped red warning lamp, a rear-side circular blue warning lamp and a rear-side straight-line-shaped red warning lamp. The rear radar subsystem is composed of a first 5A safety piece, a 24V lead-acid storage battery, a second control switch, a controller, an ultrasonic radar, a state indicator lamp, a rotary warning lamp, a buzzing alarm and a second 5A safety piece. The three-belt-one-lamp type warning lamp irradiates the ground in a U shape to serve as normal area protection. The rear radar gives an audible and visual alarm to remind nearby employees to be far away from a dangerous area and remind a driver to make an emergency response.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy forklift safety, and in particular to a new energy forklift safety warning system. Background Art

[0002] A new energy forklift safety warning system is mainly used to improve the safety of forklifts in complex operating environments, especially for forklifts operating in confined spaces, with many blind spots and frequent cross-operations. It can effectively avoid safety accidents caused by the low operating noise of forklifts through its unique lighting and sensing device design, providing strong protection for the safety of forklift operators and surrounding personnel.

[0003] In practical applications, new energy forklift safety warning systems usually require the following technologies:

[0004] 1. Warning lights are used to ensure clear visibility in all lighting conditions, allowing people around to easily identify the location and operating range of the forklift.

[0005] 2. Ultrasonic radar ensures timely and accurate detection of approaching personnel. It can accurately sense the approach of personnel near the circular blue warning light on the rear side of the forklift, providing a reliable basis for subsequent alarm triggering.

[0006] 3. The alarm device can effectively attract the attention of surrounding personnel, prompting nearby employees to stay away from the dangerous area, while reminding the driver to make an emergency response.

[0007] Currently, the industry has adopted a variety of safety measures to ensure forklift operation safety. Some forklifts are only equipped with simple reversing horns or a few warning lights, but these warnings are limited in complex environments. Other forklifts, while equipped with multiple safety devices, lack effective coordination between them, failing to provide comprehensive safety protection. While some high-end forklifts have comprehensive safety systems, they are expensive and may place high demands on the forklift's overall structure and performance, hindering widespread adoption.

[0008] However, there is a problem with the above method, that is, the safety warning system is not very effective and adaptable in actual use, especially in complex and high-risk working environments, where the safety hazards faced by forklifts cannot be effectively resolved. In response to this problem, this application proposes a solution and designs a new energy forklift safety warning system. When the forklift ignition lock is powered on, the straight red warning lights on the left, right and rear sides of the vehicle body and the circular blue warning light on the rear side light up at the same time, forming a U-shaped normal area protection of "three belts and one light". When a person approaches the circular blue warning light on the rear side, the installed ultrasonic radar and its controller will immediately output a sensing signal, causing the buzzer alarm to sound and the rotating warning light to flash, forming the final three-dimensional effect of "three belts, two lights and one radar". This design greatly improves the safety of forklift operations and effectively addresses the safety hazards of new energy forklifts in the actual production process. Utility Model Content

[0009] In response to the shortcomings of the existing technology, the utility model provides a new energy forklift safety warning system to solve the technical problem that the safety warning system is not effective and adaptable in actual use, especially in complex and high-risk working environments, where the safety hazards faced by forklifts cannot be effectively solved.

[0010] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0011] A new energy forklift safety warning system includes two subsystems: "three belts and one light" and "rear radar". The "three belts and one light" subsystem consists of a 24V transformer, an 80V lithium battery, an ignition key, a control switch 1, a 10A fuse, a relay, a left-side straight red warning light, a right-side straight red warning light, a rear round blue warning light, and a rear straight red warning light. The "rear radar" subsystem consists of a 5A fuse 1, a 24V lead-acid battery, a control switch 2, a controller, an ultrasonic radar, a status indicator light, a rotating warning light, a buzzer alarm, and a 5A fuse 2.

[0012] Preferred: The relay consists of an internal pull-in and holding coil, the relay is fixed in the front instrument panel of the cab, the left-side one-line red warning light, the right-side one-line red warning light, the rear one-line red warning light and the circular blue warning are all composed of LED lights, a fixed bracket and its circuit. The left-side one-line red warning light is a vertical one-line red light on the left side of the forklift, fixed on the left door column of the cab, with a height of about 180cm, the right-side one-line red warning light is a vertical one-line red light on the right side of the forklift, fixed on the right door column of the cab, with a height of about 180cm, the rear one-line red warning light is a horizontal one-line red light on the rear side of the forklift, fixed on the rear top of the cab, with a height of about 220cm, and the circular blue warning light is a circular blue light on the rear side of the forklift, fixed on the rear top of the cab, with a height of about 220cm.

[0013] Preferred: The 24V lead-acid battery is composed of two 12V, 9.0Ah batteries connected in series and fixed to the bottom of the right door of the cab. The controller consists of its shell, internal circuit board, status indicator light, positive terminal, negative terminal, NO normally open terminal, COM common terminal and related lines, and is fixed to the bottom of the right door of the cab. The ultrasonic radar consists of a radar detection sensor, a shell, a manufactured fixing bracket and its lines, which are directly connected to the controller signal and fixed on the hatch panel at the middle and rear of the forklift, with a height of about 120cm. The rotating warning light consists of an LED rotating lamp bead, a shell, a lamp holder, a manufactured fixing bracket and its lines. The positive pole is controlled by the controller signal and is fixed upside down outside the right rear of the cab at a height of about 200cm. The buzzer alarm consists of an alarm assembly, a manufactured fixing bracket and its lines. The positive pole is controlled by the controller signal and is fixed on the counterweight beam at the bottom of the cab, with a height of about 120cm.

[0014] The utility model has the following beneficial effects:

[0015] When the forklift's ignition lock is powered on, the straight red warning lights on the left, right and rear sides of the vehicle body and the circular blue warning light on the rear side light up at the same time. At this time, the "three belts and one light" shine in a U shape on the ground as normal area protection; when someone approaches the circular blue warning light on the rear side, the installed ultrasonic radar and its controller will be triggered to immediately output a sensing signal, causing the installed buzzer alarm to sound and the rotating warning light to flash, presenting the final three-dimensional effect of "three belts, two lights and one radar", reminding nearby employees to stay away from dangerous areas and reminding the driver to make an emergency response. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the "three belts and one light" warning system of this utility model new energy forklift;

[0018] Figure 2 This is a schematic diagram of the "rear radar" alarm system of this utility model new energy forklift.

[0019] Legend: 1. 24V transformer; 2. 80V lithium battery; 3. Ignition key; 4. Control switch 1; 5. 10A fuse; 6. Relay; 7. Left straight red warning light; 8. Right straight red warning light; 9. Rear round blue warning light; 10. Rear straight red warning light; 11. 5A fuse 1; 12. 24V lead-acid battery; 13. Control switch 2; 14. Controller; 15. Ultrasonic radar; 16. Status indicator light; 17. Rotating warning light; 18. Buzzer alarm; 19. 5A fuse 2. DETAILED DESCRIPTION

[0020] The embodiments of the present application provide a new energy forklift safety warning system, which effectively solves the technical problem that the safety warning system is not effective and adaptable in actual use, especially in complex and high-risk working environments, where the safety hazards faced by forklifts cannot be effectively solved. Example

[0021] according to Figure 1 and Figure 2 As shown, the technical solution in the embodiment of the present application effectively solves the technical problem that the safety warning system is not effective and adaptable in actual use, especially in complex and high-risk working environments, and the safety hazards faced by forklifts cannot be effectively solved. The overall idea is as follows:

[0022] In view of the problems existing in the prior art, the utility model provides a new energy forklift safety warning system, including two subsystems: "three belts and one light" and "rear radar". The "three belts and one light" subsystem consists of a 24V transformer 1, an 80V lithium battery 2, an ignition key 3, a control switch 1 4, a 10A fuse 5, a relay 6, a left-side straight red warning light 7, a right-side straight red warning light 8, a rear round blue warning light 9, and a rear-side straight red warning light 10. The "rear radar" subsystem consists of a 5A fuse 11, a 24V lead-acid battery 12, a control switch 2 13, a controller 14, an ultrasonic radar 15, a status indicator light 16, The "three belts and one light" warning system consists of a rotating warning light 17, a buzzer alarm 18, and a 5A fuse 2 19. When the ignition key 3 is turned on, the power supply of the original vehicle's 80V lithium battery 2 is converted to 24V output through the on-board 24V transformer 1, and then reaches the pull-in end of the relay 6 after passing through the installed control switch 1 4 and the 10A fuse 5, and then the relay 6 remains energized; at this time, the left-side straight-line red warning light 7, the right-side straight-line red warning light 8, the rear-side straight-line red warning light 10 and a round blue warning light, which constitute the "three belts and one light" warning system, begin to light up continuously, and three eye-catching red straight-line light belts appear on the left and right sides and the rear of the forklift. When the forklift is in operation, a blue circular light ring appears at the center of the key protection area at the rear of the forklift, which provides a highly recognizable safety warning effect to the surrounding workers when the forklift is running. When the "rear radar" alarm system is in use, it is another independent detection radar alarm system, which is mainly used to prevent the electromagnetic effect of the original lithium battery of the new energy forklift from interfering with the controller 14, ultrasonic radar 15 and buzzer alarm 18. Therefore, the 24V lead-acid battery 12 installed in the appropriate position effectively solves this problem, and a 5A fuse 11 is connected in series to the positive pole of the line and a 5A fuse 2 19 is connected in series to the negative pole to prevent short circuit; when the independent The added control switch 2 13 illuminates the status indicator 16 of the controller 14. Simultaneously, the radar signal terminal of the controller 14 outputs power to the ultrasonic radar 15, which then begins operating. The ultrasonic radar 15 then begins operating, effectively monitoring a range of approximately 80cm from the rear of the forklift. When a person or object comes within 80cm of the ultrasonic radar 15, the ultrasonic radar 15 sends a feedback signal to the controller 14, causing the status indicator 16 to turn from red to green. Simultaneously, the normally-open terminal of the controller 14 outputs current to the buzzer alarm 18 and the rotating alarm light 17, causing the buzzer alarm 18 to begin beeping and the rotating alarm light 17 to rotate and illuminate synchronously. This provides a three-dimensional "sound, light, and electricity" warning effect to the driver and personnel behind the equipment during operation. Three striking red light strips appear on the sides and rear of the forklift, while a blue circular light ring appears at the center of the key protection area at the rear of the forklift, providing a highly recognizable safety warning to personnel nearby while the forklift is in operation.

[0023] The relay 6 is composed of an internal pull-in and holding coil. The relay 6 is fixed in the front instrument panel of the cab. The left-side straight red warning light 7, the right-side straight red warning light 8, the rear-side straight red warning light 10 and the circular blue warning are all composed of LED lights, a fixed bracket and its circuit. The left-side straight red warning light 7 is a vertical straight red light on the left side of the forklift and is fixed on the left door column of the cab. It is about 180cm high. The right-side straight red warning light 8 is a vertical straight red light on the right side of the forklift and is fixed on the right door column of the cab. It is about 180cm high. The rear-side straight red warning light 10 is a horizontal straight red light on the rear side of the forklift and is fixed on the rear top of the cab. It is about 220cm high. The circular blue warning light is a circular blue light on the rear side of the forklift and is fixed on the rear top of the cab. It is about 220cm high. The 24V lead-acid battery 12 consists of two 12V , 9.0Ah batteries are connected in series and fixed at the bottom of the right door of the cab. The controller 14 consists of its shell, internal circuit board, status indicator light 16, positive terminal, negative terminal, NO normally open terminal, COM common terminal and related lines, and is fixed at the bottom of the right door of the cab. The ultrasonic radar 15 consists of a radar detection sensor, a shell, a manufactured fixing bracket and its lines, and is directly connected to the controller 14 signal. It is fixed on the hatch panel at the middle and rear of the forklift, with a height of about 120cm. The rotating alarm light 17 consists of an LED rotating lamp bead, a shell, a lamp holder, a manufactured fixing bracket and its lines. The positive pole is controlled by the signal of the controller 14 and is fixed upside down at the right rear outside the cab at a height of about 200cm. The buzzer alarm 18 consists of an alarm assembly, a manufactured fixing bracket and its lines. The positive pole is controlled by the signal of the controller 14 and is fixed on the counterweight beam at the bottom of the cab, with a height of about 120cm.

[0024] Working principle:

[0025] The first step is design confirmation: First, the functionality, specifications, and quantity of required accessories (such as warning lights, controller 14, and ultrasonic radar 15) are confirmed to ensure they meet design requirements. Furthermore, through actual measurements, the projection range of the linear red warning lights and circular blue warning lights is determined to ensure the warning zone covers critical areas around the forklift. The actual power is then mapped to determine the wiring route. The new energy forklift's lithium battery provides an 80V power output, and the output voltage through one port of its transformer is a constant 24V. Therefore, three linear red warning lights and one circular blue warning light, rated at 70W at 24V, are installed in parallel. Based on calculations, a 10A fuse is used, and 2.5mm² copper wire is laid as the power supply line. The radar warning system is designed to have an effective detection range of approximately 80cm. When a person is within 80cm of the ultrasonic radar 15, it will generate a feedback signal to the controller 14, which will trigger a beeping buzzer 18 and a synchronously rotating warning light 17.

[0026] The second step is installation and deployment: cut and punch holes to make brackets and fix them, and adjust the angle of the lights. Install a bracket on each side of the forklift, fix two of the straight red warning lights on the left and right sides of the forklift respectively, and then make a two-position parallel bracket to install another straight red warning light and a circular blue warning light on the top of the rear of the forklift. The three red warning lights are fixed at an angle to form a highly recognizable U-shaped surrounding warning area, and the circular blue warning light serves as a warning for the key area at the rear of the forklift to enhance the prompt effect. When the forklift is powered on, the three side lights and the rear blue light will light up. The ultrasonic radar 15 is made with a fixed bracket and installed on the hatch panel at the middle and rear of the forklift to ensure that it can fully monitor the environment around the forklift.

[0027] The third step is system integration: the "rear radar" alarm system integrates the rotating warning light 17, buzzer alarm 18, ultrasonic radar 15 and other components through the controller 14 to achieve unified signal processing and output. However, since the components of the "rear radar" alarm system are interfered with by the internal electromagnetic effect of the forklift's lithium battery, two 12V lead-acid batteries are connected in series and fixed in a position away from the original lithium battery of the new energy forklift as a dedicated 24V power supply for the "rear radar" alarm system. At the same time, the controller 14 is also fixed nearby. When the ultrasonic radar 15 detects an obstacle, the controller 14 will immediately trigger the buzzer alarm 18 fixed to the bottom of the cab to sound an audible alarm, and at the same time trigger the warning light fixed to the right rear of the forklift to rotate and flash, reminding the driver to pay attention to objects behind and reminding the rear workers to avoid them.

[0028] The fourth step is debugging and optimization: after the system is installed, debug the "three belts and one light" warning system. When the ignition key is turned on 3, the power supply of the original vehicle's 80V lithium battery 2 is converted to 24V output through the on-board 24V transformer 1, and reaches the pull-in end of the relay 6 after passing through the installed control switch 1 4 and 10A fuse 5, and then the relay 6 remains energized. At this time, the "three belts and one light" warning system consisting of the left-side straight-line red warning light 7, the right-side straight-line red warning light 8, the rear-side straight-line red warning light 10 and a circular blue warning light begins to light up continuously. Three eye-catching red straight-line light strips appear on the left and right sides and the rear of the forklift. At the same time, a blue circular light ring appears at the center of the key protection area at the rear of the forklift, so that the forklift can provide a highly recognizable safety warning effect to the surrounding workers when it is running. Debug the "rear radar" alarm system, which is another independent detection radar alarm system. It is mainly used to prevent the original vehicle lithium battery of the new energy forklift from damaging the controller 14. , the electromagnetic effect interference between the ultrasonic radar 15 and the buzzer alarm 18, so the 24V lead-acid battery 12 installed at the appropriate position effectively solves this problem, and a 5A fuse 11 is connected in series with the positive pole of the circuit and a 5A fuse 2 19 is connected in series with the negative pole to prevent short circuit; when the independently added control switch 2 13 is turned on, the status indicator light 16 of the controller 14 lights up, and at the same time, the radar signal end of the controller 14 outputs electricity to the ultrasonic radar 15. At this time, the ultrasonic radar 15 starts to work, and the effective monitoring range is about 80cm in radius from the rear of the forklift. When a person or object is within 80cm of the ultrasonic radar 15, the ultrasonic radar 15 will give a feedback signal to the controller 14, and the status indicator light 16 will change from red to green. At this time, the normally open end of the controller 14 outputs current to the buzzer alarm 18 and the rotating alarm light 17. At this time, the buzzer alarm 18 starts to make a dripping sound, and the rotating alarm light 17 starts to rotate and emit light synchronously. This provides a three-dimensional warning effect of "sound, light and electricity" to the driver and the workers behind the equipment in the operating state. Multiple debugging and optimization are carried out to ensure that the components of the "three belts and one light" warning system and the "rear radar" alarm system can work together to achieve the best warning effect. At the same time, the system parameters are appropriately adjusted according to the on-site working environment and usage requirements to adapt to different working scenarios.

[0029] Finally, it should be noted that the above embodiments are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to enumerate all embodiments here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A new energy forklift safety warning system, including two subsystems: "three belts and one light" and "rear radar", characterized in that: The "three belts and one light" subsystem consists of a 24V transformer (1), an 80V lithium battery (2), an ignition key (3), a control switch (4), a 10A fuse (5), a relay (6), a left-side straight-line red warning light (7), a right-side straight-line red warning light (8), a rear circular blue warning light (9), and a rear-side straight-line red warning light (10). The "rear radar" subsystem consists of a 5A fuse (11), a 24V lead-acid battery (12), a control switch (2) (13), a controller (14), an ultrasonic radar (15), a status indicator light (16), a rotating warning light (17), a buzzer alarm (18), and a 5A fuse (2) (19).

2. A new energy forklift safety warning system according to claim 1, characterized in that: The relay (6) is composed of an internal pull-in and holding coil. The relay (6) is fixed in the front instrument panel of the cab. The left-side straight-line red warning light (7), the right-side straight-line red warning light (8), the rear-side straight-line red warning light (10) and the circular blue warning light are all composed of LED lights, a manufactured fixing bracket and its circuit.

3. A new energy forklift safety warning system according to claim 2, characterized in that: The left-side straight-line red warning light (7) is a vertical straight-line red light that lights up on the left side of the forklift and is fixed on the left door column of the cab, with a height of about 180 cm. The right-side straight-line red warning light (8) is a vertical straight-line red light that lights up on the right side of the forklift and is fixed on the right door column of the cab, with a height of about 180 cm. The rear-side straight-line red warning light (10) is a horizontal straight-line red light that lights up on the rear side of the forklift and is fixed on the rear top of the cab, with a height of about 220 cm. The circular blue warning light is a circular blue light that lights up on the rear side of the forklift and is fixed on the rear top of the cab, with a height of about 220 cm.

4. A new energy forklift safety warning system according to claim 3, characterized in that: The 24V lead-acid battery (12) is composed of two 12V, 9.0Ah batteries connected in series and is fixed to the bottom of the right door of the cab. The controller (14) is composed of its housing, internal circuit board, status indicator light (16), positive terminal, negative terminal, NO normally open terminal, COM common terminal and related circuits and is fixed to the bottom of the right door of the cab.

5. A new energy forklift safety warning system according to claim 4, characterized in that: The ultrasonic radar (15) is composed of a radar detection sensor, a housing, a manufactured fixing bracket and its circuit, and is directly connected to the controller (14) for signal transmission. It is fixed on the hatch panel at the rear of the forklift at a height of about 120 cm.

6. A new energy forklift safety warning system according to claim 5, characterized in that: The rotating warning light (17) is composed of an LED rotating lamp bead, a housing, a lamp holder, a manufactured fixing bracket and its circuit. The positive electrode is controlled by a signal from the controller (14). The light is fixed upside down at the right rear outside the cab at a height of about 200 cm. The buzzer alarm (18) is composed of an alarm assembly, a manufactured fixing bracket and its circuit. The positive electrode is controlled by a signal from the controller (14). The light is fixed on the counterweight beam at the bottom of the cab at a height of about 120 cm.

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