Weight balance detection device for vehicle-mounted goods shelf

Abstract

The utility model belongs to the technical field of logistics transportation equipment, and particularly relates to a vehicle-mounted goods shelf weight balance detection device which is applied to a truck and comprises an acquisition module, a control module and an output module. The acquisition module is arranged at the bottom of a goods shelf in the boxcar, is electrically connected with the control module and is used for acquiring weight information of the goods shelf in real time; the control module is used for receiving the goods shelf weight information and controlling signal output of the output module in real time; and the output module is arranged in the truck cab and is used for receiving the instruction of the control module and sending a signal to the outside in real time according to the instruction. The objective of the utility model is to solve the problems that manual estimation of cargo weight distribution by means of visual inspection, experience and the like is uncertain, unscientific and inaccurate, and it is difficult to predict the weight distribution change in the vehicle driving process in advance.

Description

Technical Field

[0001] The utility model belongs to the technical field of logistics and transportation equipment, and particularly relates to a vehicle-mounted shelf weight balance detection device. Background Art

[0002] Logistics transport vehicles often transport cargo on onboard racks. When the weight of cargo on the racks is unevenly distributed, especially at high speeds or over bumpy roads, the vehicle can easily veer off course, become unstable, or even roll over, resulting in immeasurable loss of life and property. Therefore, appropriate measures must be taken to ensure uniform weight distribution on the racks each time cargo is loaded. Furthermore, during driving, inertia can cause momentary imbalances in cargo weight due to cornering, uphill and downhill maneuvers, braking, and acceleration. This can be difficult to predict during loading.

[0003] Current inspection measures are still at the manual stage, relying on visual inspection and experience to estimate the distribution of cargo weight. This method has obvious drawbacks such as uncertainty, unscientific and inaccurateness, and it is difficult to predict changes in weight distribution during vehicle operation.

[0004] Therefore, there is an urgent need for a detection device that can detect the weight distribution of the vehicle-mounted rack during loading and monitor the changes in the weight distribution of the rack in real time. Once the safety threshold is exceeded, a warning message can be issued to avoid danger, thereby solving the above problems. Utility Model Content

[0005] This utility model proposes a vehicle-mounted rack balance detection device that, through an acquisition module, a control module, and an output module, automatically detects the weight difference of the racks in the vehicle compartment in real time and presents the results to the driver, thereby preventing the vehicle from tilting or rolling over due to uneven weight distribution. This solves the problem of manual estimation of cargo weight distribution based on visual inspection and experience, which is uncertain, unscientific, and inaccurate, and difficult to predict weight distribution changes during vehicle driving. The specific content is as follows:

[0006] A vehicle-mounted rack weight balance detection device, applied to a truck, comprising a collection module, a control module and an output module;

[0007] The acquisition module is arranged at the bottom of the shelf in the truck compartment and is electrically connected to the control module for collecting the weight information of the shelf in real time;

[0008] The control module is used to receive the shelf weight information and control the signal output of the output module in real time;

[0009] The output module is arranged in the truck cab and is used to receive instructions from the control module and send signals to the outside world in real time according to the instructions.

[0010] Furthermore, the acquisition module includes a plurality of pressure sensors; the plurality of pressure sensors are arranged at the bottom of each of the shelves in a one-to-one correspondence.

[0011] Furthermore, several of the pressure sensors are connected to the control module one by one through several first cables; a through hole is provided at the connection between the shell of the control module and each of the first cables, and an anti-loosening mechanism is provided in the through hole; the anti-loosening mechanism includes a threaded portion, a limiting portion and a locking portion; the threaded portion is a part with an external thread and a through hole, one end of which is fixedly connected to the limiting portion, and the other end passes through the through hole of the control module shell from the inside to the outside and is connected to the locking portion by a thread; the limiting portion and the locking portion are both provided with a through hole; the outer diameter of the limiting portion is larger than the diameter of the through hole of the control module shell; the first cable passes through the through holes of the locking portion, the threaded portion and the limiting portion in sequence and extends into the interior of the control module.

[0012] Furthermore, the control module includes an input / output interface and a PLC; the input / output interface is used to convert the electrical signals transmitted by the pressure sensors into a number of digital signals and transmit them to the PLC, and to convert the instructions issued by the PLC into electrical signals and send them to the output module; the PLC is provided with a threshold value, which is used to calculate the difference between the received digital signals and compare the difference with the threshold value, and to send instructions to the output module.

[0013] Furthermore, the control module is connected to the output module via a second cable; a through hole is provided at the connection between the housing of the control module and the second cable, and the anti-loosening mechanism is provided in the through hole.

[0014] Furthermore, the control module and the output module are both provided with a wireless adapter; the control module and the output module are connected via the wireless adapter and transmit signals.

[0015] Furthermore, the shell of the control module is provided with a first mounting plate and a second mounting plate; the first mounting plate is fixed on the left and right sides of the shell of the control module, and the first mounting plate is provided with mounting holes; the second mounting plate is fixed on the upper and lower sides of the shell of the control module, and the second mounting plate is provided with mounting holes.

[0016] Furthermore, a buzzer is provided inside the output module, and a display screen is provided on the end surface of the output module; an alarm light is provided below the display screen.

[0017] The beneficial effects of the present invention are that the vehicle-mounted shelf balance detection device is provided with a collection module that can collect the weight of the shelf in real time, especially during driving, when the vehicle is turning, braking, going uphill, etc., the weight change of the shelf can be collected in real time; by setting up a control module, the weight information of the collection module can be received, and the information can be compared and analyzed, so as to obtain the difference data of the shelf weight in real time, and judge in real time whether there will be dangers such as vehicle tilting or rollover; by setting up an output module in the cab, the data information transmitted by the control module can be displayed in real time, and an alarm signal can be sent to the driver to avoid the occurrence of dangers of vehicle tilting and rollover. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other embodiments can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a schematic diagram of the overall structure of a vehicle-mounted shelf weight balance detection device;

[0020] Figure 2 This is a schematic diagram of the overall structure of a vehicle-mounted rack weight balance detection device from another angle;

[0021] Figure 3 This is an enlarged schematic diagram of the anti-loosening mechanism structure of a vehicle-mounted shelf weight balance detection device;

[0022] Figure 4 This is a schematic diagram of the exploded structure of an anti-loosening mechanism of a vehicle-mounted rack weight balance detection device;

[0023] Figure 5 This is an enlarged structural diagram of a first mounting plate and a second mounting plate of a vehicle-mounted shelf weight balance detection device;

[0024] In the figure: 1. Acquisition module; 101. Pressure sensor; 102. First cable; 2. Control module; 201. Anti-loosening mechanism; 2011. Threaded portion; 2012. Limiting portion; 2013. Locking portion; 202. First mounting plate; 203. Second mounting plate; 3. Output module; 301. Second cable; 302. Display screen; 303. Alarm light; 304. Switch. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] It should be noted that when an element is referred to as being "fixed to," "disposed on," "provided with," "equipped with," "disposed on," or "connected to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element.

[0028] It should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0029] See also Figures 1 to 5 As shown, a vehicle-mounted rack weight balance detection device is applied to a truck, comprising a collection module 1, a control module 2 and an output module 3;

[0030] The acquisition module 1 is provided at the bottom of the shelf in the truck compartment and is electrically connected to the control module 2 for collecting the weight information of the shelf in real time;

[0031] The control module 2 is used to receive the shelf weight information and control the signal output of the output module 3 in real time;

[0032] The output module 3 is arranged in the truck cab, and is used to receive instructions from the control module 2 and send signals to the outside world in real time according to the instructions.

[0033] It should be noted that the shelves in the truck compartment are usually placed on the left and right sides of the compartment; once the weight of the shelves on the left and right sides is unevenly distributed, it will cause the vehicle to tilt due to different pressures on the left and right sides. This tilt may not have an impact during parking, steady, and low-speed driving. However, when the vehicle is driving, especially when turning, accelerating, braking, or driving on rough roads, it is easy to cause the center of gravity of the vehicle to shift or aggravate the uneven distribution of the center of gravity of the shelves, which can easily cause the vehicle to tilt and overturn. Therefore, the acquisition module 1 needs to have a higher acquisition frequency and be able to collect changes in the weight of the shelves in real time. In this solution, the acquisition module 1 with an acquisition frequency of 1kHz is preferred.

[0034] In the specific implementation, the utility model is provided with a collection module 1 that can collect the weight of the shelf in real time, especially during driving, when the vehicle turns, brakes, goes uphill, etc., the weight change of the shelf can be collected in real time; by setting up a control module 2, the weight information of the collection module 1 can be received, and the information can be compared and analyzed to obtain the difference data of the shelf weight in real time, and to judge in real time whether there will be dangers such as vehicle tilting or rollover; by setting up an output module 3 in the cab, the data information transmitted by the control module 2 can be displayed in real time, and an alarm signal can be sent to the driver to avoid the occurrence of vehicle tilting and rollover dangers.

[0035] In one embodiment of the present invention, Figure 1 As shown, the acquisition module 1 includes a plurality of pressure sensors 101; the plurality of pressure sensors 101 are arranged at the bottom of each of the shelves in a one-to-one correspondence.

[0036] It should be noted that the pressure sensor 101 is preferably the NS-TH18 series pressure sensor 101, which has the characteristics of compact structure, low height, good anti-eccentric load performance, all stainless steel material, and corrosion resistance.

[0037] It should be noted that each pressure sensor 101 has a unique identifier and is placed at the bottom of each shelf. The control module 2 can distinguish the information transmitted by sensors at different positions through the identifier, thereby determining the distribution of shelf weight.

[0038] In a specific implementation, the pressure sensor 101 is selected as a shelf weight monitor, which can collect shelf weight information in real time, accurately and uniquely, and provide a data basis for monitoring shelf weight distribution.

[0039] In one embodiment, Figure 2As shown, several of the pressure sensors 101 are connected to the control module 2 through several first cables 102 in a one-to-one manner; a through hole is provided at the connection between the shell of the control module 2 and each of the first cables 102, and an anti-loosening mechanism 201 is provided in the through hole; the anti-loosening mechanism 201 includes a threaded portion 2011, a limiting portion 2012 and a locking portion 2013; the threaded portion 2011 is a part with an external thread and a through hole, one end of which is fixedly connected to the limiting portion 2012, and the other end passes through the through hole of the shell of the control module 2 from the inside to the outside and is threadedly connected to the locking portion 2013; the limiting portion 2012 and the locking portion 2013 are both provided with through holes; the outer diameter of the limiting portion 2012 is larger than the diameter of the through hole of the shell of the control module 2; the first cable 102 passes through the through holes of the locking portion 2013, the threaded portion 2011 and the limiting portion 2012 in sequence and extends into the interior of the control module 2.

[0040] It should be noted that if Figure 4 As shown, one end of the threaded portion 2011 of the anti-loosening mechanism 201 is fixedly connected to the limiting portion 2012 by welding or being made into one piece, and the other end of the threaded portion 2011 passes out from the inside of the through hole of the control module 2 shell and is threadedly connected to the locking portion 2013. Since the outer diameter of the limiting portion 2012 is larger than the diameter of the through hole of the shell, the limiting portion 2012 is stuck inside the through hole of the shell; after the cable passes through the locking portion 2013, the threaded portion 2011 and the limiting portion 2012 in turn, the locking portion 2013 is tightened until it rests on the shell of the control module 2. At this time, the cable can be fixed to the shell of the control module 2 to achieve cable locking and positioning.

[0041] In a specific implementation, the anti-loosening mechanism 201 can effectively lock and fix the cable to the housing of the control module 2 to prevent the cable from loosening or falling off, thereby ensuring the stability of data transmission.

[0042] In the embodiment provided by the present utility model, the control module 2 includes an input and output interface and a PLC; the input and output interface is used to convert the electrical signals transmitted by the plurality of pressure sensors 101 into a plurality of digital signals and transmit them to the PLC, and to convert the instructions issued by the PLC into electrical signals and send them to the output module 3; the PLC is provided with a threshold value, which is used to calculate the difference between the plurality of received digital signals and compare the difference with the threshold value, and to send instructions to the output module 3.

[0043] It should be noted that PLC is the abbreviation of Programmable Logic Controller; PLC processes several digital signals received. In this solution, it mainly compares, sums and calculates the difference of the weight data of each shelf, and compares it with a preset threshold. Once the weight difference between the two shelves exceeds the threshold, it means that the shelf on one side is heavier. The PLC will send a digital signal instruction to the output module 3 and convert it into an electrical signal through the input and output interface and transmit it to the output module 3. The output module 3 will send an alarm message to the user. In addition, the PLC also transmits the weight data of each shelf to the output module 3 in real time, and the output module 3 displays the information to the outside world.

[0044] In the specific implementation, the digital-to-analog conversion of the signal is performed through the input and output interface, which can realize the data transmission between the PLC and the sensor and the PLC and the output module 3, providing data communication support for this test device; through the PLC data processing and sending instructions to the output module 3, the weight change of the shelf can be calculated in real time and accurately. Once a shelf is overweight, an alarm instruction will be immediately sent to the output module 3 to avoid danger.

[0045] In one embodiment, Figure 3 As shown, the control module 2 is connected to the output module 3 via a second cable 301 ; a through hole is provided at the connection between the housing of the control module 2 and the second cable 301 , and the anti-loosening mechanism 201 is provided in the through hole.

[0046] In a specific implementation, the anti-loosening mechanism 201 provided at the connection between the housing of the control module 2 and the second cable 301 is the same as the anti-loosening mechanism 201 at the connection between the first cable 102 and the housing of the control module 2, which can prevent the cable from loosening and ensure signal transmission.

[0047] In one embodiment, the control module 2 and the output module 3 are both provided with a wireless adapter; the control module 2 and the output module 3 are connected and transmit signals via the wireless adapter.

[0048] It should be noted that the wireless adapter is preferably a Bluetooth wireless adapter.

[0049] In a specific implementation, wireless data transmission can be achieved through Bluetooth connection. The output module 3 is placed in the cab and the control module 2 is placed in the car. While eliminating the inconvenience of wiring, data can also be transmitted in real time and efficiently.

[0050] The present invention provides an embodiment in which Figure 5As shown, the shell of the control module 2 is provided with a first mounting plate 202 and a second mounting plate 203; the first mounting plate 202 is fixed on the left and right sides of the shell of the control module 2, and the first mounting plate 202 is provided with mounting holes; the second mounting plate 203 is fixed on the upper and lower sides of the shell of the control module 2, and the second mounting plate 203 is provided with mounting holes.

[0051] It should be noted that the first mounting plate 202 and the second mounting plate 203 are both fixed to the corresponding positions of the control module 2 by welding; the control module 2 can be fixed to the required position, such as the inner wall of the vehicle compartment, by screws and mounting holes.

[0052] In a specific implementation, by setting the first mounting plate 202 and the second mounting plate 203, the control module 2 can be conveniently fixed at the required position to prevent damage to the control module 2 due to bumps, collisions, etc.; in addition, the control module 2 is fixed by screws and mounting holes, which can achieve convenient disassembly and assembly, which is conducive to later replacement and maintenance.

[0053] In one embodiment, a buzzer is disposed inside the output module 3 , and a display screen 302 is disposed on the end surface of the output module 3 ; an alarm light 303 is disposed below the display screen 302 .

[0054] It should be noted that a switch 304 is also installed on one side of the alarm light 303, which can turn off the alarm light 303 and the buzzer.

[0055] In a specific implementation, the display screen 302 can display the shelf weight information transmitted by the control module 2, making it easy for personnel to observe and understand the specific data; the buzzer and alarm light 303 can issue an alarm in time when the shelf weight is unevenly distributed, reminding personnel to deal with it to avoid danger to the vehicle.

[0056] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0057] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A vehicle-mounted rack weight balance detection device, applied to a truck, characterized in that: Including acquisition module, control module and output module; The acquisition module is arranged at the bottom of the shelf in the truck compartment, is electrically connected to the control module, and includes a plurality of pressure sensors for collecting the weight information of the shelf in real time; The pressure sensors are connected to the control modules via a plurality of first cables in a one-to-one correspondence; The control module is used to receive the shelf weight information and control the signal output of the output module in real time; A through hole is provided at the connection between the housing of the control module and each of the first cables, and an anti-loosening mechanism is provided in each of the through holes; The output module is arranged in the truck cab and is used to receive instructions from the control module and send signals to the outside world in real time according to the instructions.

2. The vehicle-mounted rack weight balance detection device according to claim 1, characterized in that: A plurality of pressure sensors are arranged at the bottom of each of the shelves in a one-to-one correspondence.

3. The vehicle-mounted rack weight balance detection device according to claim 2, characterized in that: The anti-loosening mechanism includes a threaded portion, a limiting portion and a locking portion; the threaded portion is a part with an external thread and a through hole, one end of which is fixedly connected to the limiting portion, and the other end passes through the through hole of the control module shell from the inside to the outside and is connected to the locking portion by a thread; the limiting portion and the locking portion are both provided with through holes; the outer diameter of the limiting portion is larger than the diameter of the through hole of the control module shell; the first cable passes through the through holes of the locking portion, the threaded portion and the limiting portion in sequence and extends into the interior of the control module.

4. The vehicle-mounted rack weight balance detection device according to claim 1, characterized in that: The control module includes an input / output interface and a PLC; the input / output interface is used to convert the electrical signals transmitted by the pressure sensors into a plurality of digital signals and transmit them to the PLC, and to convert the instructions issued by the PLC into electrical signals and send them to the output module; the PLC is provided with a threshold value, used to calculate the difference between the received digital signals and compare the difference with the threshold value, and to send instructions to the output module.

5. The vehicle-mounted rack weight balance detection device according to claim 1, characterized in that: The control module is connected to the output module via a second cable; a through hole is provided at the connection between the housing of the control module and the second cable, and the anti-loosening mechanism is provided in the through hole.

6. The vehicle-mounted rack weight balance detection device according to claim 1, characterized in that: The control module and the output module are both provided with a wireless adapter; the control module and the output module are connected via the wireless adapter and transmit signals.

7. The vehicle-mounted rack weight balance detection device according to claim 1, characterized in that: The shell of the control module is provided with a first mounting plate and a second mounting plate; the first mounting plate is fixed to the left and right sides of the shell of the control module, and the first mounting plate is provided with mounting holes; the second mounting plate is fixed to the upper and lower sides of the shell of the control module, and the second mounting plate is provided with mounting holes.

8. The vehicle-mounted rack weight balance detection device according to claim 1, characterized in that: A buzzer is arranged inside the output module, and a display screen is arranged on the end surface of the output module; an alarm light is arranged below the display screen.

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