Forklift charging device with emergency lamp self-switching safety display

Abstract

The utility model discloses a forklift charging device with an emergency lamp self-switching safety display function. The forklift charging device comprises a safety display structure and an energy storage structure. The energy storage structure comprises a charger, an emergency lamp and a control structure; the control structure comprises a leakage protector and a switch interlocking controller; the emergency lamp is arranged on the outer side of the energy storage structure; the leakage protector, the switch linkage controller and the emergency lamp are sequentially connected in series; when current input and output are unbalanced during charging of the forklift, the leakage protector cuts off the power supply, the switch interlocking controller is triggered to start the emergency lamp, and the emergency lamp is turned on to provide temporary illumination. According to the forklift charging device provided by the utility model, a worker can clearly see warning characters or indicating lamps at a long distance. Meanwhile, when power failure is caused by accidental tripping during charging of the forklift, temporary lighting can be provided for a certain time, personnel can conveniently evacuate from a charging room or a working site, and safety accidents are avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the forklift charging device technical field, concretely relates to a forklift charging device with emergency light self -switching safety display. BACKGROUND

[0002] With the development of logistics storage, manufacturing industry and other industries, forklifts, as important material handling and transportation equipment, are used more frequently and widely. At the same time, forklifts, as a kind of high-risk industrial vehicles, may cause safety accidents during handling, driving and charging due to improper operation, blocked vision or equipment failure. Especially during charging, the charging room is a place where various forklifts are charged. Since forklifts are in close contact with charging equipment, the traditional forklift charging device may have some safety hazards, such as electric arc and high temperature during charging, which may cause damage to operators and equipment, making the charging area a high-risk area during forklift operation. Therefore, forklifts have very high safety requirements in the operation site. Modern forklift charging devices usually consider multiple safety protection mechanisms, such as overcurrent protection, overvoltage protection or short circuit protection, to ensure the safety and reliability of forklift charging.

[0003] Currently, the traditional forklift charger sold on the market mainly highlights the charging efficiency function, but rarely reflects the safety warning effect, resulting in the original purchase charger with power-on charging liquid crystal prompt text, but the prompt text is very small, which makes the safety warning effect not obvious when the forklift is charging, and the staff need to be close to see the safety warning text. LED (Light Emitting Diode) technology, as a new type of semiconductor light source, has the advantages of low power consumption, long service life, high brightness and easy control compared to liquid crystal display. With the rapid development of LED technology, its application range is becoming more and more extensive, including lighting, display, signal indication and other fields. However, when the forklift is charging and the power is cut off due to an accident, the liquid crystal display or LED screen text on the forklift charger will be extinguished, the charging room is relatively dark, the vision is poor, and accidental collision accidents are easy to occur, which poses a certain safety risk.

[0004] Therefore, it is necessary to design a dustproof and waterproof forklift charging device with emergency light self-switching safety display to display the working status of the forklift charging device and safety prompts and other information in real time through the display screen, so that the staff can clearly see the warning text or indicator light at a long distance. At the same time, when the forklift is charging and the power is cut off due to an accident, the emergency light is automatically triggered to provide temporary lighting for a certain period of time in the charging room or operation site, which facilitates personnel to evacuate the charging room or operation site and avoids safety accidents. In order to solve the problem of the safety warning text effect not obvious and the lack of emergency lighting function of the existing forklift charging device. UTILITY MODEL CONTENT

[0005] The purpose of the patent is to make the forklift display safety warning words when charging, when the forklift charging is completed, the internal circuit of the charging device automatically turns off the LED screen, when the forklift charging is accidentally tripped off, the charging device starts the emergency light to provide temporary lighting for a certain time.

[0006] To solve the above technical problems:

[0007] The patent provides a forklift charging device with emergency light self-switching safety display, comprising: safety display structure and energy storage structure; the energy storage structure comprises a charger, an emergency light and a control structure;

[0008] The control structure comprises a leakage protector and a switch interlocking controller; the emergency light is arranged on the outside of the energy storage structure; the leakage protector, the switch interlocking controller and the emergency light are connected in series;

[0009] When the forklift charging current input and output is unbalanced, the leakage protector cuts off the power supply, triggers the switch interlocking controller to start the emergency light, and the emergency light provides temporary lighting.

[0010] Further, the energy storage structure further comprises a battery;

[0011] Further, the battery provides power for the emergency light; the battery capacity is 4000-10000mah.

[0012] Further, the emergency light is an incandescent lamp or a lamp bead.

[0013] Further, the emergency light can provide temporary lighting for at least 0.5 hours; the emergency light can provide temporary lighting with a brightness of at least 100 lux.

[0014] Further, the safety display structure comprises an LED screen and a support rod; the LED screen is detachably connected to the upper part of the energy storage structure through the support rod; the LED screen is parallel to the emergency light.

[0015] When the forklift is in charging state, the LED screen lights up to display warning words; when the forklift charging is completed, the LED screen automatically extinguishes; when the forklift charging current input and output is unbalanced, the LED screen automatically extinguishes.

[0016] Further, the LED screen comprises a display unit, and the display unit is a lamp bead.

[0017] Further, the length of the LED screen is 15-18cm, 18-20cm, 20-22cm or 22-25cm; the width of the LED screen is 8-10cm, 10-12cm, 12-14cm or 14-15cm.

[0018] Compared with the prior art, the patent has the following beneficial effects:

[0019] 1. By installing a larger LED screen on the original charging device, connecting the charging device through a control circuit, when the forklift passes through the charging device to access the power supply, the internal circuit automatically turns on the LED screen to display "power on" or other warning words with warning effect, to directly inform the operator that the forklift is currently in a charging state, so that the operator can clearly see; when the forklift charging is completed, the LED screen will automatically turn off in response.

[0020] 2. When the power supply is cut off due to accidental tripping during charging, the leakage protector inside the energy storage structure cuts off the power supply, automatically pushes the switch interlocking control device, and triggers the emergency light. At this time, the emergency light can provide an illumination brightness of 100-1500 lux, and the temporary lighting time provided by the emergency light is at least 0.5 hours, which facilitates personnel to evacuate the charging room or work site and avoids safety accidents.

[0021] 3. The dustproof and waterproof control box is provided on the outside of the emergency light, which can prolong the on-site service life of the entire forklift charging device. BRIEF DESCRIPTION OF DRAWINGS

[0022] The above content of the patent and the following detailed description will be better understood when read in conjunction with the accompanying drawings. It should be noted that the drawings are only examples of the claimed technical solutions.

[0023] Figure 1 Structure diagram of the forklift charging device;

[0024] Figure 2 Structure diagram of the energy storage structure of the forklift charging device;

[0025] Figure 3 Structure diagram of the safety display structure of the forklift charging device;

[0026] Figure 4 Work flow chart of the forklift charging device.

[0027] Among them, the reference signs are explained as follows:

[0028] Safety display structure: 100;

[0029] LED screen: 110;

[0030] Display unit: 111;

[0031] Supporting rod: 120;

[0032] Energy storage structure: 200;

[0033] Charging head: 210;

[0034] Telescopic cord: 220;

[0035] Emergency light: 230;

[0036] Control structure: 240;

[0037] Leakage protector: 241;

[0038] Switch interlock controller: 242;

[0039] Dustproof and waterproof control box: 250;

[0040] Handle: 251;

[0041] Wall hanging rack: 260. DETAILED DESCRIPTION

[0042] The detailed features and advantages of the present patent will be described in detail in the following detailed description, which is sufficient for any person skilled in the art to understand the technical content of the present patent and to implement it, and according to the description, claims and drawings disclosed in the specification, a person skilled in the art can easily understand the purposes and advantages related to the present patent.

[0043] It should be noted that in the present specification, similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0044] It should be understood that although the terms "upper", "lower", "back", "side" and the like may be used in the present patent to describe various information, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information without departing from the scope of the present patent. Therefore, the features defined as "upper", "lower", "back", "side" can explicitly or implicitly include one or more of the features. In the description of the present patent, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0045] In order to make the purposes, technical solutions and advantages of the present patent more clear, the embodiments of the present patent will be further described in detail below in combination with the drawings. The materials used in the detailed description of the present patent, such as no special description, can be obtained from commercial channels.

[0046] Please refer to Figures 1-4As shown in one specific embodiment of the patent, the patent provides a self-switch safety display forklift charging device with an emergency light, which comprises a safety display structure 100 and an energy storage structure 200; the safety display structure 100 comprises an LED screen 110 and a support rod 120; the energy storage structure 200 comprises a charger, an emergency light 230, a control structure 240, a dustproof and waterproof control box 250, and a wall hanging rack 260; the control structure 240 is arranged inside the energy storage structure 200, and the control structure 240 comprises a leakage protector 241 and a switch interlocking controller 242; the emergency light 230 is arranged on the front of the energy storage structure 200 for providing temporary lighting; the dustproof and waterproof control box 250 is arranged outside the emergency light 230 for protecting the emergency light 230 from damage; the charger comprises a charging head 210 and a stretchable wire 220, and the charger is arranged on the side of the energy storage structure 200; the wall hanging rack 260 is arranged on the back of the energy storage structure 200 for fixing the charging device on the wall; the upper part of the energy storage structure 200 is provided with an opening for detachably connecting the support rod 120.

[0047] Specifically, the LED screen 110 is provided with a plurality of display units 111, and the LED screen 110 is provided with an opening below and is detachably connected with the support rod 120; the support rod 120 is a hollow structure, and the display units 111 are connected on a circuit, which passes through the hollow structure of the support rod 120 and is connected to the energy storage structure 200 through the opening in the upper part of the energy storage structure 200.

[0048] When the charging head 210 of the charger on the energy storage structure 200 is connected to the charging interface of the forklift through the stretchable wire 220, i.e. when the forklift is in a charging state, the plurality of display units 111 in the LED screen 110 will be turned on synchronously; when the stretchable charger on the energy storage structure 200 is disconnected, i.e. when the forklift is in a power-off state, the plurality of display units 111 in the LED screen 110 will be turned off automatically.

[0049] Specifically, the width of the energy storage structure 200 is 7-8 cm, 8-9 cm, 9-10 cm, 10-11 cm, or 11-12 cm; the width of the energy storage structure 200 is 13-14 cm, 14-15 cm, 15-16 cm, 16-17 cm, or 17-18 cm; and the height of the energy storage structure 200 is 10-12 cm, 12-14 cm, 14-16 cm, 16-18 cm, or 18-20 cm.

[0050] Specifically, the length of the stretchable wire 220 is 2-3 m, 3-4 m, 4-5 m, or 5-7 m.

[0051] Specifically, the length of the LED screen 110 is 15-18 cm, 18-20 cm, 20-22 cm or 22-25 cm; the width of the LED screen 110 is 8-10 cm, 10-12 cm, 12-14 cm or 14-15 cm.

[0052] When the charging interface of the forklift is connected to the charging device and is in a charging state, the plurality of display units 111 built in the LED screen 110 will be turned on synchronously, clearly displaying "power on" or other warning words with a warning effect, so as to directly inform the operator that the forklift is currently in a charging state.

[0053] When the charging of the forklift is completed or the power is turned off, the LED screen 110 will be turned off automatically in response, and no information will be displayed on the LED screen 110, indicating that the forklift is in a power-off or non-working state.

[0054] Specifically, the display units 111 on the LED screen 110 are lamp beads, and the packaging mode of the lamp beads is direct insertion or SMD (Surface Mount Device); the size specification of the lamp beads is 3 mm, 5 mm, 10 mm or 15 mm in diameter; and the ambient temperature during the working of the lamp beads is <50 degrees, so as to prolong the service life of the lamp beads.

[0055] In one specific embodiment, the font color on the LED screen 110 is a fixed single color. Specifically, the fixed single color is red, green, blue or a color composed of different degrees of superposition of red, green and blue.

[0056] In another embodiment, the font color on the LED screen 110 is a non-fixed color displayed in rotation, and the non-fixed color is a plurality of colors displayed in rotation by red, green and blue or a color composed of different degrees of superposition of red, green and blue, so as to directly and visually prompt the operator that the forklift is currently in a charging state in more gorgeous colors, and enrich the user experience.

[0057] Specifically, the font size on the LED screen 110 can be clearly seen by the operator standing at 5-7 m, 7-9 m or 9-10 m.

[0058] Specifically, the box material of the LED screen 110 is iron, aluminum or alloy material, which has a relatively light weight and a relatively high strength.

[0059] Specifically, the packaging material of the LED screen 110 is plastic, silicone or rubber material.

[0060] Specifically, the light guide plate of the LED screen 110 is made of acrylic (PMMA) or polycarbonate (PC) material, which has good transparency and optical performance. It can effectively conduct and scatter the light brought by the display unit 111, avoiding the problems of dark areas and uneven brightness. The use of the light guide plate improves the light utilization efficiency, reduces energy consumption, has good durability and anti-yellowing performance, and can maintain excellent lighting effect for a long time.

[0061] Specifically, the outermost thin film material of the LED screen 110 is tempered glass or an optical film with high transmittance, so that the text on the LED screen 110 can be clearly seen.

[0062] Specifically, the emergency light 230 is connected to the battery inside the energy storage structure 200 via a line. When the forklift's charging port is connected to the charging device and is in a charging state, the charging device can charge not only the forklift's own battery but also the battery inside the energy storage structure 200.

[0063] Specifically, the battery inside the energy storage structure 200 has a capacity of 4000-5000 mAh, 5000-7000 mAh, 7000-9000 mAh, or 9000-10000 mAh.

[0064] Specifically, a residual current device (RCD) primarily relies on a current transformer to detect the current balance in a circuit. When the circuit is operating normally, the current flowing into and out of the protector is equal, and the transformer does not generate an induced current. However, when a leakage occurs, some current flows into the ground through the human body or other conductive bodies, causing the current flowing into and out of the protector to become unequal, i.e., the current in the circuit is unbalanced. At this time, the transformer generates an induced electromotive force, triggering the residual current trip unit to trip the automatic switch, thereby cutting off the power supply and providing leakage protection. This process can respond quickly, effectively preventing electric shock accidents and ensuring the safety of people and equipment.

[0065] When the forklift is charging, if there is an imbalance between the inflow and outflow current, the leakage protection device 241 inside the energy storage structure 200 cuts off the power supply, automatically pushes the switch interlock control device 242, and triggers the emergency light 230. At this time, the emergency light 230 can provide temporary lighting for a certain period of time.

[0066] Specifically, the emergency light 230 is an incandescent bulb or LED, and the power of the emergency light 230 is 5-6 watts, 6-7 watts, 7-8 watts, or 8-10 watts.

[0067] Specifically, the emergency light 230 can provide illumination brightness of 100-500 lux, 500-800 lux, 800-1000 lux, 1000-1200 lux, or 1200-1500 lux.

[0068] Specifically, the emergency light 230 can provide temporary lighting for about 0.5-1.0 hours, 1.0-1.5 hours, 1.5-3.0 hours, 3.0-4.5 hours or 4.5-6.0 hours.

[0069] Specifically, the dustproof and waterproof control box 250 is arranged outside the emergency light 230, which can effectively block the dust from entering the internal circuit and prevent the circuit short circuit, component damage and other problems caused by dust accumulation; at the same time, the dustproof and waterproof control box 250 is made of waterproof material and sealing technology, which can prevent water from penetrating into the internal circuit and avoid the circuit short circuit, component corrosion and other problems caused by water.

[0070] Specifically, the dustproof and waterproof control box 250 is also provided with a handle 251, which can be used to take out the emergency light 230 for maintenance when the emergency light fails or is damaged.

[0071] Specifically, the dustproof and waterproof control box 250 is made of transparent material; the transparent material has high toughness, high transparency and strong impact resistance, and can not be deformed under high temperature and high humidity conditions; preferably, the transparent material is plastic; the plastic is polycarbonate (PC), polypropylene (PP), chlorinated polyethylene (PVC) or polymethyl methacrylate (commonly known as acrylic, PMMA).

[0072] The working process of the forklift charging device provided by the utility model is as follows: when the charging interface of the forklift is connected to the charging device and is in a charging state, a plurality of display units 111 built in the LED screen 110 will be lit synchronously, and a single color display or a non-fixed color alternating display of "power on" or other warning words with warning effect is realized, so as to intuitively inform the operator that the forklift is in a charging state; when the forklift charging is completed, the LED screen 110 will be automatically extinguished in response; when the power is cut off due to an accident during the charging process, the leakage protector 241 in the energy storage structure 200 cuts off the power, automatically pushes the switch interlocking control device 242, and triggers the emergency light 230; at this time, the emergency light 230 can provide temporary lighting for a certain period of time.

[0073] Therefore, it can be concluded that the forklift charging device with an emergency light self-switch safety display provided by the utility model has the following beneficial effects compared with the prior art:

[0074] 1. By installing a larger LED screen 110 on the original charging device, through the control circuit connection charging device, when the forklift through the charging device access power, the internal circuit automatically turn on the LED screen 100 display "power on" or other warning words with warning effect, in an intuitive way to inform the operator that the current forklift is in charging state, so that the operator can clearly see; when the forklift charging is completed, the LED screen 110 will automatically extinguish in response.

[0075] 2. When the power supply is cut off due to accidental tripping during charging, the leakage protector 241 inside the energy storage structure 200 cuts off the power supply, automatically pushes the switch interlocking control device 242, triggers the emergency light 230, at this time, the emergency light 230 can provide an illumination brightness of 100-1500 lux, the emergency light 230 can provide temporary lighting time of at least 0.5 hours, which facilitates personnel evacuation from the charging room or work site, and avoids safety accidents.

[0076] 3. The emergency light 230 is provided with a dustproof and waterproof control box 250 outside, which can prolong the on-site service life of the entire forklift charging device.

[0077] Herein based on the terms and expressions are only used to describe, the utility model should not be limited to these terms and expressions. Using these terms and expressions does not mean excluding any equivalent features of the description (or part thereof), and it should be recognized that various modifications that can exist should also be included in the scope of the claims. Other modifications, changes and replacements can also exist. Accordingly, the claims should be considered to cover all these equivalents.

[0078] Similarly, it should be noted that although the utility model has been described with reference to the current specific embodiments, those skilled in the art should recognize that the above embodiments are only used to illustrate the utility model, and various equivalent changes or replacements can be made without departing from the spirit of the utility model, therefore, as long as the changes, variations of the above-mentioned embodiments are within the scope of the utility model, the changes, variations of the above-mentioned embodiments will fall within the scope of the claims of the utility model.

Claims

1. A forklift charging device with emergency light self-switching safety display, characterized in that, The utility model relates to a safety display structure and energy storage structure, the energy storage structure includes charger, emergency light and control structure, the control structure includes leakage protector and switch interlocking controller, the emergency light is arranged at the outside of the energy storage structure, the leakage protector, the switch interlocking controller and the emergency light are connected in series, when the forklift is in charging and current input and output are unbalanced, the leakage protector cuts off the power supply, triggers the switch interlocking controller to start the emergency light, and the emergency light provides temporary lighting. The energy storage structure further includes a storage battery. The storage battery provides power for the emergency light, and the storage battery has a capacity of 4000-10000 mAh. The emergency light is an incandescent lamp or a lamp bead.

2. The forklift charging device of claim 1, wherein, The emergency light can provide temporary lighting for at least 0.5 hours, and the brightness of the temporary lighting is at least 100 lux. The safety display structure includes an LED screen and a support rod, the LED screen is detachably connected to the upper part of the energy storage structure through the support rod.

3. The forklift charging device of claim 1, wherein, The LED screen is parallel to the emergency light.

4. The forklift charging device of claim 1, wherein, When the forklift is in charging, the LED screen displays warning words, when the forklift is fully charged, the LED screen automatically turns off, and when the forklift is in charging and current input and output are unbalanced, the LED screen automatically turns off.

5. The forklift charging device of claim 1, wherein, The LED screen includes a display unit, and the display unit is a lamp bead. The length of the LED screen is 15-18 cm, 18-20 cm, 20-22 cm or 22-25 cm, and the width of the LED screen is 8-10 cm, 10-12 cm, 12-14 cm or 14-15 cm. ​ 6. The forklift charging device of claim 5, wherein, ​ 7. The forklift charging device of claim 5, wherein, ​

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