Overload detection device for mechanical parking equipment

Abstract

The utility model discloses an overload detection device for mechanical parking equipment. Comprising a steel structure frame, a vehicle entrance hall and a control system are arranged on the steel structure frame, two sets of overload detection devices are arranged on the front portion of an entrance platform which is arranged in the vehicle entrance hall and used for parking a vehicle, and each set of overload detection device corresponds to a left tire and a right tire of the vehicle; each set of overload detection device comprises a weighing supporting seat, a weighing sensor, a weighing platform and a transmitter, the lower end of the weighing supporting seat is fixed on the inlet platform, the lower end of the weighing sensor is fixed on the weighing supporting seat, and the weighing platform is connected to the weighing sensor; the weighing sensor is connected with the transmitter, and the transmitter is connected with the control system. The overload detection is firstly carried out before the vehicle enters the garage, the control system calculates and analyzes the detection data of the overload detection device to find whether the vehicle to be put in the garage is overweight or not, measures including alarming and the like can be taken immediately, the overloaded vehicle is prevented from entering the garage, and equipment is prevented from being overloaded for use.

Description

Technical Field

[0001] The utility model relates to a vehicle weighing device, in particular to a vehicle weighing device used in a mechanical parking equipment, belonging to the technical field of mechanical stereo parking equipment. Background Art

[0002] With the development of the automotive industry and the improvement of people's living standards, the popularity of automobiles is becoming more and more extensive, and the per capita car ownership in cities is increasing continuously. The appearance of new energy vehicles is similar to that of ordinary vehicles, but their weight is much heavier. Therefore, it is impossible to judge whether a vehicle meets the parking requirements of a mechanical parking equipment only by its external dimensions. More importantly, it is necessary to detect the weight of the vehicle to ensure that the mechanical parking equipment does not operate overloaded, so as to ensure the safety of personnel, vehicles and parking equipment.

[0003] Previously, no overweight detection device was installed in mechanical parking equipment, and only by controlling the overload of the lifting motor to indirectly detect whether the vehicle is overweight. According to the requirements of Article A5.12, Paragraph (5) of the "Safety Technical Code for Lifting Machinery" TSG51-2023 "Overload Detection Device": "Mechanical parking equipment shall be equipped with an overload limiter. When the weight of the vehicle exceeds 95% of the rated load, the overload limiter shall give an alarm signal; when the weight reaches 100% - 110% of the rated load, the overload limiter shall take effect and automatically cut off the lifting power supply." And since January 2024, special equipment inspection and research institutes at all levels have inspected and accepted mechanical parking equipment in accordance with this new regulation, and the annual inspection of the original old mechanical parking equipment is also required to comply with this new regulation. Therefore, it is necessary to develop an overload detection device with low cost and accurate overload detection, which can not only meet the installation of new mechanical parking equipment but also be applicable to the transformation of old mechanical parking equipment. Summary of the Invention

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an overload detection device for mechanical parking equipment to solve the problems in the background art.

[0005] The technical solution adopted by the utility model to achieve the above purpose is as follows:

[0006] A mechanical parking equipment overload detection device, including a steel structure frame, on which a vehicle entrance lobby and a control system are provided. An entrance platform for parking cars is arranged in the vehicle entrance lobby. It is characterized in that: there are 2 sets of overload detection devices at the front of the entrance platform, and each set of overload detection devices corresponds to the left and right tires of the vehicle respectively; each set of overload detection devices includes a weighing support base, a weighing sensor, a weighing platform and a transmitter. The lower end of the weighing support base is fixed on the entrance platform, the lower end of the weighing sensor is fixed on the weighing support base, and the weighing platform is connected to the weighing sensor; the weighing sensor is connected to the transmitter, and the transmitter is connected to the control system.

[0007] By adopting the above technical solution, an overload detection device is arranged at the front of the vehicle entrance platform. Before the vehicle enters the warehouse, the overload detection is first carried out. The control system can calculate and analyze the detection data of the overload detection device to find out whether the vehicle to be stored is overweight, and can immediately take measures including alarming to prevent overweight vehicles from entering the warehouse, prevent the equipment from being overloaded, eliminate potential safety hazards, and ensure the safe operation of the parking equipment.

[0008] In the above-mentioned mechanical parking equipment overload detection device, each set of overload detection devices includes two weighing sensors, and the two weighing sensors jointly support a weighing platform.

[0009] Furthermore, the two weighing sensors are arranged side by side left and right.

[0010] By adopting the above technical solution, each set of overload detection devices includes two weighing sensors, the two weighing sensors jointly support a weighing platform, and the two weighing sensors are arranged side by side left and right, which can avoid inaccurate weighing caused by uneven force on the weighing platform.

[0011] In the above-mentioned mechanical parking equipment overload detection device, a display and an alarm unit are installed on the steel structure frame of the vehicle entrance lobby. When the control system detects overload, the control system controls the alarm unit to alarm; the display and the alarm unit are both connected to the control system.

[0012] Furthermore, the alarm unit includes a buzzer alarm, an indicator light and an LED display screen.

[0013] In the above-mentioned mechanical parking equipment overload detection device, a vehicle over-length detection device and a vehicle presence detection device are provided on the steel structure frame of the vehicle entrance lobby.

[0014] Furthermore, the steel structure frame of the vehicle entrance hall includes a left front column, a right front column, a left rear column, and a right rear column. The vehicle over-length detection device is a first group of photoelectric sensors arranged on the left front column and the right front column, and a second group of photoelectric sensors arranged on the left rear column and the right rear column; the vehicle presence detection device is a third group of photoelectric sensors arranged on the left front column and the right rear column.

[0015] Furthermore, the photoelectric sensor is a transmissive photoelectric sensor;

[0016] The transmitting end of the first group of photoelectric sensors is arranged on the left front column, and the receiving end is arranged on the right front column;

[0017] The transmitting end of the second group of photoelectric sensors is arranged on the left rear column, and the receiving end is arranged on the right rear column;

[0018] The transmitting end of the third group of photoelectric sensors is arranged on the left front column, and the receiving end is arranged on the right rear column.

[0019] A method for detecting equipment overload using the above mechanical parking equipment overload detection device includes the following steps:

[0020] S1: The driver drives the vehicle into the vehicle entrance hall;

[0021] S2: The vehicle moves forward, and the front wheels of the vehicle pass over the overload detection device. The two weighing sensors corresponding to the left wheels measure the weight data P 左1 、P 左2 , and the two weighing sensors corresponding to the right wheels measure the weight data P 右1 、P 右2 , and automatically upload the measurement data to the control system;

[0022] S3: The vehicle continues to move forward, and the rear wheels of the vehicle pass over the overload detection device. The two weighing sensors corresponding to the left wheels measure the weight data P 左3 、P 左4 , and the two weighing sensors corresponding to the right wheels measure the weight data P 右3 、P 右4 , and automatically upload the measurement data to the control system;

[0023] S4: The vehicle moves forward to the designated position and stops;

[0024] S5: The driver gets out of the vehicle and walks out of the vehicle entrance hall. The two weighing sensors corresponding to the left wheels measure the driver's weight data P 左5 、P 左6 ;

[0025] S6: The control system calculates the weight of the vehicle according to the following formula:

[0026] P = P 左1 + P 左2 + P 右1 + P 右2 + P 左3 + P 左4 + P 右3 + P 右4 - P 左5 - P 左6 ;

[0027] S7: The control system compares the vehicle weight P with the rated load P 0 as follows:

[0028] When P < 0.95P 0 the control system controls the alarm unit to send a signal, allowing the vehicle to enter the warehouse. At the same time, the display screen and the horn give voice prompts for the driver of the vehicle to stop the vehicle, turn off the engine and leave the vehicle; The driver presses the confirm parking button at the vehicle entrance, and the parking equipment continues to operate to send the vehicle to the target parking space;

[0029] 0.95P 0 <P<P 0 When, the control system controls the alarm unit to send a signal, allowing the vehicle to enter the warehouse. At the same time, the display screen and the horn give voice prompts for the driver of the vehicle that the equipment has reached the rated load, stop the vehicle, turn off the engine and leave the vehicle; The driver presses the confirm parking button at the vehicle entrance, and the parking equipment continues to operate to send the vehicle to the target parking space;

[0030] When P ≥ P 0 the control system controls the alarm unit to send an alarm signal. At the same time, the display screen and the horn give voice reminders to the driver of the vehicle that the vehicle is overweight and prompt it to exit the vehicle entrance.

[0031] In the above method for detecting equipment overload using the mechanical parking equipment overload detection device, before the step S2, there is also a step:

[0032] S21: The vehicle moves forward, the front of the vehicle blocks the first group of photoelectric sensors and at the same time blocks the third group of photoelectric sensors, and the control system starts the overload detection program.

[0033] In the above method for detecting equipment overload using the mechanical parking equipment overload detection device, the specific working process of the step S4 is as follows:

[0034] S41: The vehicle continues to move forward to the position and stops:

[0035] S42: If the third group of photoelectric sensors is blocked and the first group of photoelectric sensors and the second group of photoelectric sensors are not blocked, go to step S5;

[0036] S43: If the third group of photoelectric sensors is blocked and the second group of photoelectric sensors is blocked, the control system controls the alarm unit to emit an alarm signal, reminding that the vehicle is over-length and prompting it to exit the vehicle entrance. Beneficial effects

[0037] 1. An overload detection device is provided at the front of the vehicle entrance platform. The vehicle first undergoes overload detection before entering the warehouse. The control system can calculate and analyze the detection data of the overload detection device to determine whether the vehicle to be stored is overweight, and can immediately take measures including alarming to prevent overweight vehicles from entering the warehouse, prevent the equipment from being overloaded, eliminate potential safety hazards, and ensure the safe operation of the parking equipment.

[0038] 2. Each set of overload detection device includes two weighing sensors. The two weighing sensors jointly support a weighing platform, and the two weighing sensors are arranged side by side left and right, which can avoid inaccurate weighing caused by uneven force on the weighing platform.

[0039] 3. Installing this overload detection device does not affect the design of the original components. The structure is relatively independent and has stronger versatility.

[0040] 4. The structure is simple, the failure rate is low, and the weighing is accurate.

[0041] 5. It occupies a small space and has strong adaptability. It can meet various types of parking equipment warehouses and also meet the transformation needs of old parking equipment. Brief description of the drawings

[0042] Figure 1 It is a schematic diagram of the overload detection device of the present utility model installed in the vehicle entrance hall.

[0043] Figure 2 It is a schematic diagram of the overload detection device of the present utility model.

[0044] Figure 3 It is a top view of the overload detection device of the present utility model.

[0045] Figure 4 It is a side view of the overload detection device of the present utility model.

[0046] In the figure: 1 right rear column, 2 entrance platform, 3 right front column,

[0047] 4 overload detection device, 41 weighing support seat, 42 weighing sensor, 43 weighing platform;

[0048] 5 vehicle entrance device, 6 first group of photoelectric sensors, 7 third group of photoelectric sensors, 8 left front column, 9 second group of photoelectric sensors, 10 left rear column, 11 transmitter, 12 PLC controller. Detailed implementation manners

[0049] To clearly illustrate the technical features of this solution, the following provides a further description of the present utility model through non-limiting embodiments in conjunction with the accompanying drawings.

[0050] The front, rear, left, and right directions described in the present utility model are based on the front, rear, left, and right directions shown in the accompanying drawings. For ease of explanation, only parts related to the embodiments of the present utility model are shown. Embodiment 1:

[0051] Please refer to Figures 1 to 4 , a mechanical parking equipment overload detection device, including a steel structure frame, on which a vehicle entrance hall and a control system are provided. The vehicle entrance is usually set on the ground floor. An entrance platform 2 for parking cars is arranged in the vehicle entrance hall. A vehicle entrance device 5 is arranged on the entrance platform 2, including a vehicle stop system, a centering device, a micro-lifting platform, and a lifting mechanism for driving the micro-lifting platform to move up and down, etc.; in order to realize the forward entry and exit of vehicles, a rotary device is also provided on some vehicle entrance platforms 2; a vehicle detection device is arranged in the vehicle entrance, and the vehicle detection device is connected to the control system, including a detection device for detecting the presence or absence of a vehicle, a vehicle height detection device for detecting the height of the vehicle, a vehicle length detection device for detecting the length of the vehicle, a vehicle width detection device for detecting the width of the vehicle, and a vehicle in-place detection device; in the vehicle storage program, the control system judges whether the entering vehicle is suitable for parking according to the detection results. If the size exceeds the parking specifications of this parking equipment and is not suitable for parking, the subsequent program will be stopped and the driver will be reminded to drive out. In this embodiment, 2 sets of overload detection devices 4 are arranged at the front of the entrance platform 2, and each set of overload detection devices 4 corresponds to the left and right tires of the vehicle respectively; each set of overload detection devices 4 includes a weighing support seat 41, a weighing sensor 42, a weighing platform 43, and a transmitter 11. The lower end of the weighing support seat 41 is fixed on the entrance platform 2, the lower end of the weighing sensor 42 is fixed on the weighing support seat 41, and the weighing platform 43 is connected to the weighing sensor 42; the weighing sensor 42 is connected to the transmitter 11, and the transmitter 11 is connected to the control system. In this embodiment, the transmitter 11 adopts an LZ-SZQ4-485 type transmitter, and the control system adopts a PLC control system.

[0052] Specifically, each set of overload detection devices 4 includes two weighing sensors 42, and the two weighing sensors 42 jointly support a weighing platform 43 to avoid inaccurate weighing caused by uneven force on the weighing platform. The two weighing sensors 42 are arranged side by side left and right. In this embodiment, the weighing sensor 42 adopts an LZ-ZCH-1.5T type weighing sensor.

[0053] A display and an alarm unit are installed on the steel structure frame of the vehicle entrance vestibule. When the control system detects overloading, the control system controls the alarm unit to give an alarm; both the display and the alarm unit are connected to the control system. In this embodiment, the alarm unit includes a buzzer alarm, a horn, an indicator light, and an LED display screen.

[0054] A vehicle over-length detection device and a vehicle presence detection device are provided on the steel structure frame of the vehicle entrance vestibule. The steel structure frame of the vehicle entrance vestibule includes a left front column 8, a right front column 3, a left rear column 10, and a right rear column 1. The vehicle over-length detection device is a first group of photoelectric sensors 6 provided on the left front column 8 and the right front column 3, and a second group of photoelectric sensors 9 provided on the left rear column 10 and the right rear column 1; the vehicle presence detection device is a third group of photoelectric sensors 7 provided on the left front column 8 and the right rear column 1.

[0055] The transmitting end of the first group of photoelectric sensors 6 is provided on the left front column 8, and the receiving end is provided on the right front column 3;

[0056] The transmitting end of the second group of photoelectric sensors 9 is provided on the left rear column 10, and the receiving end is provided on the right rear column 1;

[0057] The transmitting end of the third group of photoelectric sensors 7 is provided on the left front column 8, and the receiving end is provided on the right rear column 1.

[0058] The above-mentioned photoelectric sensors adopt Panasonic NX5-M10RA type opposed photoelectric sensors.

[0059] In this embodiment, the control system uses a host computer software + PLC controller, which is prior art and will not be elaborated here. Embodiment 2:

[0060] Please refer to Figures 1 to 4 , a method for detecting equipment overloading by using the mechanical parking equipment overloading detection device described in Embodiment 1 includes the following steps:

[0061] S1: The driver drives the vehicle into the vehicle entrance vestibule;

[0062] S21: The vehicle moves forward, and the front of the vehicle blocks the first group of photoelectric sensors 6 and at the same time blocks the third group of photoelectric sensors 7, and the control system starts the overloading detection program;

[0063] S2: The vehicle moves forward, and the front wheels of the vehicle pass over the overloading detection device 4, and the two load cells 42 corresponding to the left wheels measure the weight data P 左1 、P 左2 , and the two load cells 42 corresponding to the right wheels measure the weight data P 右1 、P 右2 , and automatically upload the measurement data to the control system;

[0064] S3: The vehicle continues to move forward, and the rear wheels of the vehicle pass over the overload detection device 4. The two weighing sensors 42 corresponding to the left wheels measure the weight data P 左3 、P 左4 ,and the two weighing sensors 42 corresponding to the right wheels measure the weight data P 右3 、P 右4 ,and automatically upload the measurement data to the control system;

[0065] S41: The vehicle continues to move forward to the designated position and stops:

[0066] S42: If the third group of photoelectric sensors 7 is blocked and the first group of photoelectric sensors 6 and the second group of photoelectric sensors 9 are not blocked, go to step S5;

[0067] S43: If the third group of photoelectric sensors 7 is blocked and the second group of photoelectric sensors 9 is blocked, the control system controls the alarm unit to send out an alarm signal to remind the vehicle that it is over-length and prompt it to exit the vehicle entrance;

[0068] S4: The vehicle moves forward to the designated position and stops;

[0069] S5: The driver gets out of the vehicle and walks out of the vehicle entrance hall. The two weighing sensors 42 corresponding to the left wheels measure the driver's weight data P 左5 、P 左6 ;

[0070] S6: The control system calculates the weight of the vehicle according to the following formula:

[0071] P = P 左1 +P 左2 +P 右1 +P 右2 +P 左3 +P 左4 +P 右3 +P 右4 -P 左5 -P 左6 ;

[0072] S7: The control system compares the vehicle weight P with the rated load P 0 :

[0073] P < 0.95P 0 When, the control system controls the alarm unit to send out a signal, allowing the vehicle to enter the warehouse. At the same time, the display screen and the horn voice prompt the driver of the vehicle to stop the engine and leave the vehicle; The driver presses the confirmation button for parking the vehicle at the vehicle entrance, and the parking equipment continues to operate to send the vehicle to the target parking space;

[0074] 0.95P 0 <P<P 0When this occurs, the control system controls the alarm unit to send a signal to allow the vehicle to enter the warehouse. At the same time, the display screen and the horn give voice prompts to the driver of the vehicle that the driver's equipment has reached the rated load, and to park the vehicle, turn off the engine and leave the vehicle; the driver presses the confirmation button for parking the vehicle at the vehicle entrance, and the parking equipment continues to operate to send the vehicle to the target parking space;

[0075] P≥P 0 , the control system controls the alarm unit to send an alarm signal. At the same time, the display screen and the horn give voice reminders to the driver of the vehicle that the vehicle is overweight and prompt the driver to exit the vehicle entrance.

[0076] In the weighing sensor set in the present utility model, the two weighing data information of the vehicle and the body weight information of the driver are transmitted to the control system. The control system automatically calculates the weight of the vehicle, compares the vehicle weight with the rated load, judges whether to allow the vehicle to enter the warehouse, and sends an alarm prompt signal. The above actions are all controlled by the control system; the specific control programming process is designed according to the characteristics of the vehicle storage process and the actual operation needs, which does not belong to the structural scope of the present utility model, and the circuit layout and connection for realizing the control can be designed according to the hardware structure of the present utility model, and can be overcome by combining the action purpose and with the help of the common sense in the field of electronic control, so it will not be elaborated.

[0077] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "left", "right", "front", "rear", "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. The above terms are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 a limitation to the present utility model.

[0078] Unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" 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, an electrical connection, a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0079] Except for the technical features described in the specification, the rest are the known technologies of those skilled in the art.

[0080] The embodiments listed above are only for understanding the present utility model and are not intended to limit the technical solutions described in the present utility model. Those of ordinary skill in the relevant art can make various changes or deformations on the basis of the technical solutions described in the claims, and all equivalent changes or deformations should be covered within the scope of protection of the claims of the present utility model.

Claims

1. A mechanical parking equipment overload detection device, comprising a steel structure frame, a vehicle entrance hall and a control system arranged on the steel structure frame, an entrance platform for parking cars arranged in the vehicle entrance hall, characterized in that: Two sets of overload detection devices are provided at the front of the entrance platform, and each set of overload detection devices corresponds to the left and right tires of the vehicle respectively; each set of overload detection devices includes a weighing support seat, a weighing sensor, a weighing platform and a transmitter, the lower end of the weighing support seat is fixed on the entrance platform, the lower end of the weighing sensor is fixed on the weighing support seat, and the weighing platform is connected to the weighing sensor; the weighing sensor is connected to the transmitter, and the transmitter is connected to the control system.

2. The overload detection device for mechanical parking equipment according to claim 1, characterized in that: Each set of overload detection devices includes two weighing sensors, and the two weighing sensors jointly support a weighing platform.

3. The overload detection device for mechanical parking equipment according to claim 2 is characterized in that: The two weighing sensors are arranged side by side on the left and right.

4. A mechanical parking equipment overload detection device according to claim 1, 2 or 3, characterized in that: A display and an alarm unit are installed on the steel structure frame located at the vehicle entrance lobby. When the control system detects overload, the control system controls the alarm unit to alarm; the display and the alarm unit are both connected to the control system.

5. The overload detection device for mechanical parking equipment according to claim 4 is characterized in that: The alarm unit comprises a buzzer alarm, a speaker, an indicator light and an LED display screen.

6. The overload detection device for mechanical parking equipment according to claim 1, characterized in that: A vehicle overlength detection device and a vehicle presence detection device are arranged on the steel structure frame of the vehicle entrance lobby.

7. The overload detection device for mechanical parking equipment according to claim 6, characterized in that: The steel structure frame of the vehicle entrance hall includes a left front pillar, a right front pillar, a left rear pillar, and a right rear pillar. The vehicle overlength detection device is a first group of photoelectric sensors arranged on the left front pillar and the right front pillar, and a second group of photoelectric sensors arranged on the left rear pillar and the right rear pillar; the vehicle presence detection device is a third group of photoelectric sensors arranged on the left front pillar and the right rear pillar.

8. The overload detection device for mechanical parking equipment according to claim 7, characterized in that: The photoelectric sensor is a through-beam photoelectric sensor; The transmitting end of the first group of photoelectric sensors is arranged on the left front column, and the receiving end is arranged on the right front column; The transmitting end of the second group of photoelectric sensors is arranged on the left rear pillar, and the receiving end is arranged on the right rear pillar; The transmitting end of the third group of photoelectric sensors is arranged on the left front column, and the receiving end is arranged on the right rear column.

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