Automobile load weighing device

By collecting water in a water collection tank and using control and auxiliary devices to separate sand and gravel powder, the problems of vehicle water addition cheating and sensor flooding in unattended weighbridges have been solved, thus achieving weighing accuracy and device reliability.

CN224231067UActive Publication Date: 2026-05-12YIXING SANWEI ELECTRICAL MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YIXING SANWEI ELECTRICAL MFG CO LTD
Filing Date
2025-05-28
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing unattended weighbridges cannot effectively determine whether vehicles are cheating by adding water, resulting in inaccurate weighing and the sensors being easily submerged by water accumulation, and drainage pipes being easily blocked.

Method used

A vehicle load weighing device was designed, comprising a weighing device, a control device, and an auxiliary device. Water is collected through a water collection tank, and the water is discharged by using a baffle plate and an electric cylinder. Sand and gravel powder are separated through a separation pipe and a filter screen to reduce the risk of clogging.

Benefits of technology

It improves weighing accuracy, reduces sensor flooding and drainage pipe blockage, and enhances the practicality of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of wagon balances, in particular to an automobile load weighing device, which weighs the load of an automobile through a weighing device, collects water entering the bottom of the wagon balances, reduces the situation that a sensor is submerged by accumulated water, and controls the drainage of the accumulated water through a control device. Water in the wagon balance is discharged through the auxiliary device, sand and stone powder mixed in the water is separated from the water, the risk that a drainage pipeline is blocked is reduced, and the practicability of the device is improved; comprising a weighing device, a control device and an auxiliary device, the control device is installed on the weighing device, and the auxiliary device is installed on the weighing device.
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Description

Technical Field

[0001] This utility model relates to the technical field of weighbridges, and in particular to a vehicle load weighing device. Background Technology

[0002] Unmanned weighbridges offer four direct benefits: reduced costs, increased work efficiency, improved product quality, and enhanced logistics management. Using unmanned weighbridges reduces the number of personnel required, saving significant annual labor costs. They also improve cargo loading and unloading efficiency. Furthermore, unmanned weighbridges should prevent vehicles from improperly mounting the weighbridge, thus preventing cheating, improving weighing accuracy, and avoiding losses. Cheating behaviors, such as the front wheels leaving the weighbridge, the rear wheels not entering the weighbridge, or the wheels pressing against the edge of the weighbridge, can cause serious weighing errors.

[0003] The prior art Chinese utility model patent with application number CN202320732209.1 relates to an unattended weighbridge, which includes a weighing weighbridge, a detection weighbridge, a pressure sensor, a control host, an alarm and a camera, etc. It can use the detection weighbridge to detect whether a vehicle is outside the weighing weighbridge range, so as to make the vehicle wheels completely stop on the weighing weighbridge for weighing.

[0004] The most common way to increase the load capacity of a truck during the transportation of sand and gravel in construction projects is to add water to the sand and gravel in the truck bed, thereby increasing the weight and illegally profiting. During the weighing process of adding water to the truck, a large amount of water will drip down, and sand and gravel powder will be mixed in with the water. The aforementioned unmanned weighbridges do not have the ability to determine whether water has been added to the vehicle, and a large amount of water containing sand and gravel powder will flow into the weighbridge and accumulate, requiring regular cleaning to ensure the normal operation of the weighbridge. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a vehicle load weighing device that weighs the vehicle load and collects the water that enters the bottom of the weighbridge to reduce the possibility of water flooding the sensor. The device controls the drainage of the water and uses an auxiliary device to drain the water from the weighbridge and separate the sand and gravel powder mixed in the water from the water, thereby reducing the risk of drainage pipe blockage and improving the practicality of the device.

[0006] This utility model discloses a vehicle load weighing device, comprising a weighing device, a control device, and an auxiliary device. The control device is installed on the weighing device, and the auxiliary device is installed on the weighing device. The weighing device weighs the vehicle load and collects water that enters the bottom of the weighbridge, reducing the possibility of water flooding the sensors. The control device controls the drainage of the accumulated water, and the auxiliary device drains the water from the weighbridge and separates sand and gravel powder mixed in the water from the water, reducing the risk of drainage pipe blockage and improving the practicality of the device.

[0007] Preferably, the weighing device includes a weighing platform, pressure sensors, a main support plate, and a water collection tank. The weighing platform has an installation slot, and the main support plate is installed in the installation slot of the weighing platform via multiple sets of pressure sensors. Multiple sets of water collection tanks are provided on the lower end surface of the installation slot of the weighing platform. The main support plate supports the vehicle, the multiple pressure sensors weigh the vehicle, and the water collection tanks collect water that enters the installation slot of the weighing platform, quickly restoring a dry environment around the pressure sensors and reducing the impact of rust caused by a humid environment on the service life.

[0008] Preferably, the control device includes a baffle plate, a drain outlet, an electric cylinder, a strip groove, and a lifting plate. Multiple sets of drain outlets are provided on the rear side of the water collection tank, each set located behind multiple sets of water collection tanks. A baffle plate is provided at the rear of the water collection tank, with a drain outlet at the lower part of the baffle plate. A strip groove is provided on the top surface of the drain outlet, communicating with the upper surface of the baffle plate. An electric cylinder is installed in the middle of the upper surface of the baffle plate, with its moving end extending into the strip groove and connecting to the lifting plate. The baffle plate intercepts water in the water collection tank, facilitating the equipment's determination of the amount of water dripping during a single weighing process. By controlling the extension of the electric cylinder, the lifting plate moves up and down, sealing or opening the drain outlet, thereby controlling the discharge of water accumulated in the water collection tank and improving the device's practicality.

[0009] Preferably, it also includes a water level sensor. The water level sensor is installed on the side of the baffle plate, and the installation height of the water level sensor is adjusted according to the water level measurement requirements. The water level sensor judges the amount of water accumulated in the water collection tank. When the water level in the water collection tank is higher than the height of the water level sensor during a single weighing process, that is, when the vehicle is seriously leaking water, the signal is transmitted to the equipment controller, and the single weighing data is invalidated, which improves the practicality of the device.

[0010] Preferably, it also includes a water guide plate, which is provided on the upper part of the rear end face inside the mounting groove of the weighing platform; the water guide plate guides the water dripping from the rear of the weighing platform, reducing the impact of water being discharged directly from the drain outlet at the rear of the water collection tank on data acquisition, and improving the practicality of the device.

[0011] Preferably, the auxiliary device includes a separation pipe, a water collection pipe, a geared motor, spiral blades, and a filter screen. The separation pipe is installed at an angle on the rear side of the weighing platform. The drain outlets on the rear sides of multiple water collection tanks are connected to the interior of the separation pipe through the water collection pipe. A geared motor is installed on the left end face of the separation pipe. Spiral blades are installed inside the separation pipe. A filter screen is installed on the lower part of the right end face of the separation pipe. A waste discharge outlet is installed on the left side of the lower end face of the separation pipe. Water in the weighing platform is collected through the separation pipe and then discharged. The filter screen filters the sand and gravel powder in the water, reducing the possibility of sand and gravel powder entering the drain pipe and causing blockage. The geared motor is turned on to transmit power to the spiral blades, which drives the spiral blades to rotate, thereby lifting the waste in the separation pipe to the left and discharging it, thus separating the sand and gravel powder from the water, improving the practicality of the device.

[0012] Preferably, the weighing platform also includes a water receiving plate and a nut. A set of water receiving plates is installed on the front and rear end faces of the weighing platform by means of nuts. The water receiving plates increase the effective collection area of ​​the equipment for dripping water, thereby making it easier for the equipment to judge the water filling status of the vehicle and improving the practicality of the device.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the weighing device weighs the vehicle load and collects the water that enters the bottom of the weighbridge, reducing the situation of water flooding the sensor; the control device controls the drainage of the water; the auxiliary device drains the water from the weighbridge and separates the sand and gravel powder mixed in the water from the water, reducing the risk of drainage pipe blockage and improving the practicality of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0015] Figure 2 This is a first cross-sectional structural diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the second cross-sectional structure of this utility model;

[0017] Figure 4 This is a partially enlarged structural schematic diagram of the present invention;

[0018] The following are labels in the attached diagram: 1. Weighing platform; 2. Pressure sensor; 3. Main support plate; 4. Water collection tank; 5. Water baffle; 6. Drain outlet; 7. Electric cylinder; 8. Strip trough; 9. Lifting plate; 10. Water level sensor; 11. Water guide plate; 12. Separation pipe; 13. Water collection pipe; 14. Gear motor; 15. Spiral blade; 16. Filter screen; 17. Water receiving plate; 18. Nut. Detailed Implementation

[0019] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1

[0020] Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the control device is installed on the weighing device, and the auxiliary device is installed on the weighing device;

[0021] First, the vehicle is supported by the main bearing plate 3. The vehicle is weighed by multiple pressure sensors 2. Water entering the weighing platform 1 is collected by the water collection tank 4. Then, the water in the water collection tank 4 is intercepted by the baffle plate 5. The water level sensor 10 judges the water level in the water collection tank 4. When the water level in the water collection tank 4 is higher than the height of the water level sensor 10 during a single weighing process, that is, when the vehicle is seriously leaking water, the signal is transmitted to the equipment controller, the single weighing data is invalidated, and then the electric cylinder 7 is controlled to retract to lift the lifting plate 9, thereby draining the water. Then, the water in the weighing platform 1 is collected and discharged through the separation pipe 12. The sand and gravel powder in the water is filtered by the filter screen 16 to reduce the sand and gravel powder entering the drain pipe and causing the drain pipe to be blocked. The reduction motor 14 is turned on to transmit power to the spiral blade 15 to drive the spiral blade 15 to rotate, thereby lifting the waste in the separation pipe 12 to the left and discharging it, thus separating the sand and gravel powder from the water.

[0022] The weighing device includes a weighing platform 1, a pressure sensor 2, a main support plate 3, and a water collection tank 4. The weighing platform 1 is provided with an installation groove. The main support plate 3 is installed in the installation groove of the weighing platform 1 through multiple sets of pressure sensors 2. Multiple sets of water collection tanks 4 are provided on the lower end surface of the installation groove of the weighing platform 1.

[0023] The control device includes a baffle plate 5, a drain outlet 6, an electric cylinder 7, a strip groove 8, and a lifting plate 9. Multiple sets of drain outlets are provided on the rear side of the water collection tank 4. The multiple sets of drain outlets are located on the rear side of the multiple sets of water collection tanks 4. A baffle plate 5 is provided at the rear of the water collection tank 4. A drain outlet 6 is provided at the lower part of the baffle plate 5. A strip groove 8 is provided on the top surface of the drain outlet 6. The strip groove 8 is connected to the upper end surface of the baffle plate 5. An electric cylinder 7 is installed in the middle of the upper end surface of the baffle plate 5. The moving end of the electric cylinder 7 extends into the strip groove 8 and connects with the lifting plate 9.

[0024] It also includes a water level sensor 10, which is installed on the side of the baffle plate 5. The installation height of the water level sensor 10 is adjusted according to the water level measurement requirements.

[0025] It also includes a water guide plate 11, which is provided on the upper part of the rear end face of the mounting groove of the weighing platform 1;

[0026] The auxiliary device includes a separation pipe 12, a water collection pipe 13, a reduction motor 14, a spiral blade 15, and a filter screen 16. The separation pipe 12 is installed at an angle on the rear side of the weighing platform 1. The drain outlets on the rear side of the multiple sets of water collection tanks 4 are connected to the interior of the separation pipe 12 through the water collection pipe 13. The reduction motor 14 is installed on the left end face of the separation pipe 12. The spiral blade 15 is installed inside the separation pipe 12. The filter screen 16 is provided on the lower part of the right end face of the separation pipe 12. The waste discharge outlet is provided on the left side of the lower end face of the separation pipe 12.

[0027] It also includes a water receiving plate 17 and a nut 18. A set of water receiving plates 17 are installed on the front and rear end faces of the weighing platform 1 through the nut 18. The weighing device weighs the vehicle load and collects the water that enters the bottom of the weighbridge, reducing the possibility of water flooding the sensor. The drainage of the accumulated water is controlled by the control device, and the water in the weighbridge is drained by the auxiliary device. The sand and gravel powder mixed in the water are separated from the water, reducing the risk of drainage pipe blockage and improving the practicality of the device.

[0028] like Figures 1 to 4 As shown, this utility model discloses a vehicle load-bearing weighing device. During operation, the vehicle is first supported by a main load-bearing plate 3, weighed by multiple pressure sensors 2, and water entering the weighing platform 1's mounting groove is collected by a water collection tank 4. Then, a baffle plate 5 intercepts the water in the water collection tank 4, and a water level sensor 10 judges the amount of water accumulated in the water collection tank 4. When the water level in the water collection tank 4 is higher than the height of the water level sensor 10 during a single weighing process, indicating severe water leakage in the vehicle, a signal is transmitted... The data is sent to the equipment controller, which invalidates the single weighing data. Then, the electric cylinder 7 is controlled to retract, raising the lifting plate 9 to drain the accumulated water. The water in the weighing platform 1 is then collected and discharged through the separation pipe 12. The sand and gravel powder in the water is filtered through the filter screen 16 to reduce the possibility of sand and gravel powder entering the drain pipe and causing blockage. The geared motor 14 is turned on to transmit power to the spiral blade 15, which drives the spiral blade 15 to rotate, thereby lifting and discharging the waste material in the separation pipe 12 to the left, thus separating the sand and gravel powder from the water.

[0029] The geared motor 14, electric cylinder 7, water level sensor 10, and pressure sensor 2 of the automobile load weighing device of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0030] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A vehicle load weighing device; characterized in that, It includes a weighing device, a control device, and an auxiliary device. The control device is installed on the weighing device, and the auxiliary device is installed on the weighing device. The weighing device includes a weighing platform (1), a pressure sensor (2), a main support plate (3) and a water collection tank (4). The weighing platform (1) is provided with an installation groove. The main support plate (3) is installed in the installation groove of the weighing platform (1) through multiple sets of pressure sensors (2). Multiple sets of water collection tanks (4) are provided on the lower end surface of the installation groove of the weighing platform (1). The control device includes a baffle plate (5), a drain outlet (6), an electric cylinder (7), a strip groove (8), and a lifting plate (9). Multiple drain outlets are provided on the rear side of the water collection tank (4). The multiple drain outlets are located on the rear side of the multiple water collection tanks (4). A baffle plate (5) is provided at the rear of the water collection tank (4). A drain outlet (6) is provided at the lower part of the baffle plate (5). A strip groove (8) is provided on the top surface of the drain outlet (6). The strip groove (8) is connected to the upper surface of the baffle plate (5). An electric cylinder (7) is installed in the middle of the upper surface of the baffle plate (5). The moving end of the electric cylinder (7) extends into the strip groove (8) and connects with the lifting plate (9). It also includes a water level sensor (10), which is installed on the side of the baffle (5). The installation height of the water level sensor (10) is adjusted according to the water level measurement requirements.

2. The vehicle load weighing device as described in claim 1, characterized in that, It also includes a water guide plate (11), which is provided on the upper part of the rear end face of the mounting groove of the weighing platform (1).

3. The vehicle load weighing device as described in claim 2, characterized in that, The auxiliary device includes a separation pipe (12), a water collection pipe (13), a geared motor (14), a spiral blade (15), and a filter screen (16). The separation pipe (12) is installed at an angle on the rear side of the weighing platform (1). The drain outlets on the rear side of multiple sets of water collection tanks (4) are connected to the inside of the separation pipe (12) through the water collection pipe (13). The geared motor (14) is installed on the left end face of the separation pipe (12). The spiral blade (15) is installed inside the separation pipe (12). The filter screen (16) is installed on the lower part of the right end face of the separation pipe (12). The waste discharge outlet is installed on the left side of the lower end face of the separation pipe (12).

4. The vehicle load weighing device as described in claim 3, characterized in that, It also includes a water receiving plate (17) and a nut (18). A set of water receiving plates (17) are installed on the front and rear end faces of the weighing platform (1) respectively by nuts (18).