Vehicle weighing device and system

Abstract

The utility model discloses a vehicle weighing device and system, and belongs to the technical field of weighing equipment, the vehicle weighing device comprises a weighing unit, the weighing unit is used for vehicle single wheel weighing, the weighing unit comprises a weighing member and a distance adjusting member, the weighing piece comprises a first protective layer, a first bearing layer, an induction layer, a second bearing layer and a second protective layer which are sequentially arranged from bottom to top, the first protective layer and the second protective layer are made of rubber materials, the first bearing layer and the second bearing layer are made of steel sheets, the induction layer is formed by arranging and combining a plurality of pressure sensors in a matrix mode, and the second protective layer is made of steel sheets. The distance adjusting piece comprises a first connecting block and a distance measuring rod, the first connecting block is arranged at the end of one side edge of the weighing piece, one end of the distance measuring rod is rotationally connected with the first connecting block, and the distance measuring rod is provided with distance marks. The vehicle weighing system adopts the weighing device, and weighing data weighed by the weighing unit is transmitted to the processor through the wireless transmission module, is received and stored by the processor, and can be displayed and checked at the display end in real time.

Description

Technical Field

[0001] The utility model belongs to the technical field of weighing equipment, and in particular relates to a vehicle weighing device and system. Background Art

[0002] Vehicle weighing is crucial to the management and operation of the freight industry. Proper cargo loading can improve transportation efficiency and help ensure road traffic safety. By accurately understanding the weight of the vehicle, it is possible to determine whether the vehicle is overloaded, avoid problems such as reduced vehicle braking performance and increased tire wear caused by overloading, and thus reduce the risk of traffic accidents.

[0003] Most existing vehicle weighing systems can only weigh the gross weight of the vehicle. When precise vehicle axle weight is required for engineering inspections, existing vehicle weighing systems are unable to quickly and accurately weigh the axle weight of the vehicle and the weight of a single wheel of the vehicle, resulting in low accuracy of the test results. Utility Model Content

[0004] The purpose of the utility model is to provide a vehicle weighing device and system, aiming to solve the problems existing in the prior art in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A vehicle weighing device comprises a weighing unit, the weighing unit is used for weighing a single wheel of a vehicle, the weighing unit comprises a weighing piece and a distance adjusting piece, the weighing piece comprises a first protective layer, a first force-bearing layer, a sensing layer, a second force-bearing layer and a second protective layer which are arranged in sequence from bottom to top, the first protective layer and the second protective layer are made of rubber material, the first force-bearing layer and the second force-bearing layer are made of steel sheets, the sensing layer is composed of a plurality of pressure sensor matrices arranged and combined, the distance adjusting piece comprises a first connecting block and a distance measuring rod, the first connecting block is arranged at an end of one side of the weighing piece, one end of the distance measuring rod is rotatably connected to the first connecting block, the distance measuring rod is provided with a distance mark along its length direction, and the distance measuring rod is used to adjust the distance between the wheel and the weighing piece.

[0007] Furthermore, the distance adjusting member also includes a second connecting block, which is arranged at the other end of one side of the weighing member, and the second connecting block is provided with a bracket, and the bracket is used to place the free end of the distance measuring rod.

[0008] Furthermore, a connecting part is arranged on the side of the weighing piece located on the opposite side of the ranging rod, and the connecting part is provided with a threaded groove, and the notch of the threaded groove is horizontally oriented toward the side away from the weighing piece, and a telescopic rod is arranged between the weighing pieces in the same row, and the two ends of the telescopic rod are respectively rotatably connected to the rotating connecting part, and the rotating connecting part is provided with an external thread, and the threaded groove is threadedly connected to the rotating connecting part.

[0009] Furthermore, protrusions are evenly distributed on the bottom surface of the first protective layer, and striped protrusions are arranged on the top surface of the second protective layer.

[0010] Furthermore, the pressure sensor is connected in a full-bridge connection manner.

[0011] A vehicle weighing system adopts the above-mentioned vehicle weighing device, including a vehicle weighing device, a processor and a display end, wherein the processor is connected to the vehicle weighing unit through signals, the weighing unit is provided with a wireless transmission module, the wireless transmission module is used to transmit the vehicle single-wheel weighing data to the processor, the processor is used to receive, store and process data, the display end is connected to the processor through signals, and the display end is used to display the weighing results.

[0012] Compared with the shortcomings and deficiencies of the prior art, the utility model has the following beneficial effects.

[0013] 1. The utility model provides a vehicle weighing device, which is composed of a weighing unit. The weighing unit is used to weigh the weight of a single wheel of a vehicle. Through the combination of multiple weighing units, the weight of a single wheel, the weight of a single axle and the weight of the whole vehicle can be measured quickly and accurately. The distance measuring rod is used to adjust the distance between the wheel and the weighing piece, so that each wheel of the vehicle can be moved synchronously to the weighing piece for weighing. The pressure sensors are arranged in a matrix structure, which is conducive to ensuring the weighing accuracy. The weighing piece adopts a multi-layer structure, which is conducive to improving the durability of the weighing unit while ensuring the weighing accuracy.

[0014] 2. The utility model also provides a vehicle weighing system, which adopts the above-mentioned vehicle weighing device. The weighing unit is provided with a wireless transmission module, and the vehicle single wheel weighing data is transmitted to the processor through the wireless transmission module. The processor receives, stores and processes the data, and the display end can view the single wheel, single axle and whole vehicle weighing results in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the weighing unit in the utility model.

[0016] Figure 2 It is a structural schematic diagram of a weighing unit provided with a second connecting block in the utility model.

[0017] Figure 3 It is a structural schematic diagram of the utility model in which weighing units in the same row are connected by telescopic rods.

[0018] Figure 4 It is a schematic diagram of the connection structure between the rotary connection part and the thread groove in the utility model.

[0019] Figure 5 It is a schematic diagram of the connection structure of a weighing unit for weighing a rear double-row wheel vehicle in the utility model.

[0020] Figure 6 It is a schematic diagram of a weighing device for weighing a vehicle in the utility model.

[0021] Figure 7 It is a data transmission schematic diagram of a vehicle weighing system in the utility model.

[0022] Figure 8 It is a schematic diagram of the full-bridge connection mode of the pressure sensor in the utility model.

[0023] In the figure: 1-weighing piece; 2-distance adjusting piece; 3-first protective layer; 4-first force-bearing layer; 5-sensing layer; 6-second force-bearing layer; 7-second protective layer; 8-first connecting block; 9-distance measuring rod; 10-second connecting block; 11-wheel; 12-telescopic rod; 13-connecting part; 14-rotating connecting part; 15-bracket; 16-thread groove. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] Reference Figure 1-Figure 6 A vehicle weighing device, the weighing device is composed of a weighing unit, the weighing unit is used for weighing a single wheel of a vehicle, through the combination of the weighing units, the single wheel of the vehicle, the axle, and the total weight of the vehicle can be conveniently weighed.

[0026] The weighing unit includes a weighing piece 1 and a distance adjusting piece 2. The weighing piece 1 includes a first protective layer 3, a first force-bearing layer 4, a sensing layer 5, a second force-bearing layer 6 and a second protective layer 7 which are arranged in sequence from bottom to top. The bottom surface of the first protective layer 3 is evenly provided with protrusions to increase the grip of the first protective layer 3. The top surface of the second protective layer 7 is provided with striped protrusions to increase the friction between it and the wheel 11. The first protective layer 3 and the second protective layer 7 can be made of rubber; the first force-bearing layer 4 and the second force-bearing layer 6 are made of steel sheets to enhance the strength and durability of the weighing piece 1; (refer to Figure 8 ) The sensing layer 5 uses a pressure sensor, and multiple pressure sensors are arranged and bridged in a matrix, and the bridge connection is preferably a full-bridge connection to ensure the stability of the pressure sensors in parallel. The length of the weighing piece 1 is preferably 30-50 cm, and the width is preferably 40-60 cm.

[0027] The distance adjusting member 2 is arranged on one side of the weighing member 1, and is used to adjust the distance between the edge of the weighing member 1 and the wheel 11, so as to control the synchronous weighing of each tire of the vehicle. The distance adjusting member 2 includes a first connecting block 8 and a distance measuring rod 9. The length of the distance measuring rod 9 is the same as the length of the side of the weighing member 1. The first connecting block 8 is arranged at the end of the side of the weighing member 1. One end of the distance measuring rod 9 is rotatably connected to the first connecting block 8. The other end of the distance measuring rod 9 is provided with a second connecting block 10. The second connecting block 10 is arranged at the other end of the side of the weighing member 1. The top surface of the second connecting block 10 is provided with a bracket 15. The bracket 15 is used for the free end of the distance measuring rod 9 to be placed. The distance measuring rod 9 is provided with a distance mark along its length direction. Before weighing, the distance measuring rod 9 is located on one side of the weighing member 1. The distance measuring rod 9 is rotated to rotate its free end to the other side away from the weighing member 1. The free end of the distance measuring rod 9 can be placed on one side of the wheel 11, so as to accurately adjust the distance between the wheel 11 and the weighing member 1. For freight vehicles with double-row rear wheels, when weighing, the weighing pieces 1 can be placed front and back, the end of the distance measuring rod 9 located at the rear weighing unit can be placed in the bracket 15 located at the front weighing unit, and the distance between the front and rear weighing units can be adjusted to facilitate accurate weighing of the double-row rear wheel truck.

[0028] In one embodiment, a connection portion 13 is provided at the edge of the weighing member 1 on the opposite side of the distance adjusting member 2, and a thread groove 16 is provided on the connection portion 13 along the side facing away from the weighing member 1 horizontally, and the two weighing units placed in opposite positions can be connected by a telescopic rod 12, and a rotating connection portion 14 is provided at both ends of the telescopic rod 12, and the rotating connection portion 14 is provided with an external thread that is threadedly matched with the thread groove 16, and the rotating connection portion 14 is rotatably matched with the end of the telescopic rod 12. By connecting the weighing units on both sides by the telescopic rod 12, the weighing units on both sides can be accurately aligned, which is conducive to ensuring the weighing accuracy.

[0029] Reference Figure 7 A vehicle weighing system includes a weighing device, a processor and a display terminal. The weighing device adopts the above-mentioned vehicle weighing device. The weighing unit is provided with a wireless transmission module. The wireless transmission module is connected to the processor signal and is used to transmit the weighing data of the weighing unit to the processor. The processor is connected to the display signal. The processor is used to receive and store the weighing data of each weighing unit and identify the position of each weighing unit. The processor can process the weighing data. By combining the weighing data of the weighing units on both sides, the corresponding axle weight can be calculated, providing more comprehensive and accurate data for vehicle weighing. The final weighing result can be displayed on the display.

[0030] When the vehicle weighing device is used, the distance measuring rod 9 is rotated, and the free end of the distance measuring rod 9 is located at the wheel 11, and the distance between the weighing piece 1 and the wheel 11 is adjusted. When the wheels 11 in the same row are weighed, the weighing units on both sides are connected by the telescopic rod 12, so that the weighing units on both sides are accurately aligned with the wheels 11 on both sides. When the rear double-row wheels are weighed, the weighing units are placed in front and behind, and the distance measuring rod 9 of the weighing unit close to the wheel 11 is used to adjust the distance between the wheel 11, and the free end of the distance measuring rod 9 of the weighing unit far from the wheel 11 is placed in the bracket 15 of the adjacent weighing unit, and the distance between the adjacent weighing units is adjusted to match the distance between the wheels 11. Move the vehicle so that the wheel 11 is located on the top surface of the weighing piece 1, and weigh it through the matrix pressure sensor. The wireless transmission module transmits the single-wheel weighing data to the processor, and the processor receives and stores the data, and displays the weighing data in real time through the display terminal.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle weighing device, characterized in that: The invention comprises a weighing unit, the weighing unit is used for weighing a single wheel of a vehicle, the weighing unit comprises a weighing piece (1) and a distance adjusting piece (2), the weighing piece (1) comprises a first protective layer (3), a first force bearing layer (4), a sensing layer (5), a second force bearing layer (6) and a second protective layer (7) arranged in sequence from bottom to top, the first protective layer (3) and the second protective layer (7) are made of rubber material, the first force bearing layer (4) and the second force bearing layer (6) are made of steel sheets, the sensing layer (5) is composed of a plurality of pressure sensors arranged in a matrix, the distance adjusting piece (2) comprises a first connecting block (8) and a distance measuring rod (9), the first connecting block (8) is arranged at an end of one side of the weighing piece (1), one end of the distance measuring rod (9) is rotatably connected to the first connecting block (8), the distance measuring rod (9) is provided with a distance mark along its length direction, and the distance measuring rod (9) is used to adjust the distance between the wheel (11) and the weighing piece (1).

2. The vehicle weighing device according to claim 1, characterized in that: The distance adjusting member (2) further comprises a second connecting block (10), the second connecting block (10) being arranged at the other end of one side of the weighing member (1), the second connecting block (10) being provided with a bracket (15), the bracket (15) being used to place the free end of the distance measuring rod (9).

3. The vehicle weighing device according to claim 1, characterized in that: A connecting portion (13) is provided on the side of the weighing piece (1) located on the opposite side of the distance measuring rod (9), the connecting portion (13) being provided with a thread groove (16), the notch of the thread groove (16) being horizontally oriented toward a side away from the weighing piece (1), a telescopic rod (12) being provided between the weighing pieces (1) in the same row, the two ends of the telescopic rod (12) being rotatably connected to a rotating connecting portion (14), the rotating connecting portion (14) being provided with an external thread, and the thread groove (16) being threadedly connected to the rotating connecting portion (14).

4. The vehicle weighing device according to claim 1, characterized in that: The bottom surface of the first protective layer (3) is evenly provided with protrusions, and the top surface of the second protective layer (7) is provided with striped protrusions.

5. The vehicle weighing device according to claim 1, characterized in that: The pressure sensor is connected in a full-bridge connection manner.

6. A vehicle weighing system, using the vehicle weighing device according to any one of claims 1 to 5, characterized in that: It includes a vehicle weighing device, a processor and a display end. The processor is connected to the vehicle weighing unit through signals. The weighing unit is provided with a wireless transmission module. The wireless transmission module is used to transmit the vehicle single-wheel weighing data to the processor. The processor is used to receive, store and process data. The display end is connected to the processor through signals and is used to display the weighing results.

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