Weighing anti-cheating system for transport vehicle

Abstract

The utility model provides an anti-cheating system used for transportation vehicle weighing, relates to the industrial technology field, especially relates to the wagon balance weighing technology field, comprises a wagon balance and an echelette grating device, and is characterized in that the ground at four corners of the wagon balance is respectively provided with a support rod, the support rods are used for fixing the echelette grating device, and the support rods are used for fixing the echelette grating device. The echelette grating device comprises an echelette grating transmitting end and an echelette grating receiving end; the echelette grating transmitting end and the echelette grating receiving end are respectively fixed on two supporting rods on the same side of the wagon balance; the system also comprises an alarm device which is connected to the alarm signal output end of the echelette grating device. The supporting rod is fixed to the ground through a locking mechanism. The structure of the supporting rod and the locking mechanism is adopted, the echelette grating device is effectively fixed, and the problem that a system is unstable and unreliable due to movement or external interference is avoided.

Description

Technical Field

[0001] The utility model relates to the field of industrial technology, in particular to the field of weighing technology of floor scales. Background Art

[0002] A weighbridge, also known as a truck scale, is a large scale set on the ground, mainly used to weigh the weight of a truck's cargo. It is an important device for factories, mines, businesses, etc. for measuring bulk goods. However, when a vehicle is weighed at the factory, drivers often use various means to deceive the weighbridge system, such as using external tools to change the weighing data, or simply bypassing the weighbridge system for illegal operations, which may lead to inaccurate and unfair weighing data, thereby affecting traffic safety and the normal order of the road transport industry. Drivers evade overload fines or other legal liabilities by deceiving the weighbridge system, which may cause overloaded vehicles to be on the road, increasing road safety risks and damaging the fair competition environment in the road transport industry. Therefore, solving this technical problem is crucial to ensuring traffic safety and the normal operation of the road transport industry.

[0003] At present, the infrared grating equipment of the existing weighing anti-cheating system is fixed around the floor scale. On the one hand, the infrared grating equipment may not be firmly fixed and easily affected by external interference or accidental movement, thus affecting the stability and reliability of the weighing anti-cheating system. On the other hand, some fixing schemes may require the shell of the infrared grating equipment to be modified or processed, which not only increases the complexity of installation and maintenance, but also limits the applicability of the equipment in different environments. Utility Model Content

[0004] Based on the above problems, the utility model proposes a system for preventing fraud in weighing of transport vehicles. The specific technical solution is as follows:

[0005] A system for preventing fraud in weighing transport vehicles, comprising a weighing scale and an infrared grating device, characterized in that support rods are respectively provided on the ground at the four corners of the weighing scale, the support rods are used to fix the infrared grating device, the infrared grating device comprises an infrared grating transmitting end and an infrared grating receiving end, the infrared grating transmitting end and the infrared grating receiving end are respectively fixed on two support rods on the same side of the weighing scale; the system also comprises an alarm device, the alarm device is connected to the alarm signal output end of the infrared grating device; the support rod is fixed to the ground by a locking mechanism.

[0006] Furthermore, the locking mechanism includes a chassis, the upper end face of which is integrally formed and provided with a cylindrical boss. Three U-shaped grooves are evenly arranged along the periphery of the boss, and a screw is hinged in each U-shaped groove. The lower end of the support rod is provided with an integrally formed base, whose cross-sectional profile matches the boss, that is, a U-shaped groove is also arranged at a corresponding position on the base, so that when the screw is erected, it will be stuck in the slot on the edge of the base. When the nut is tightened, it will contact the upper end face of the base, thereby achieving locking. The length of the screw is greater than the height of the base. When in use, the chassis is fixed to the ground, and the base is placed on the boss and aligned with the profile of the boss. Then the screw is erected vertically, and the nut is screwed into the upper end face of the base and tightened, thereby achieving locking of the base and the chassis.

[0007] Furthermore, a fixing rod is arranged in the U-shaped groove of the boss, and transverse openings are formed on both sides of the U-shaped groove and penetrate the cylindrical surface of the boss, and these openings are used to insert the fixing rod. The hinged end of the screw rod is annular, and the middle part of the fixing rod exposed in the U-shaped groove is hinged to the annular hinged end of the screw rod, so that the screw rod can rotate freely under the support of the fixing rod to achieve connection with the boss.

[0008] Furthermore, the alarm device adopts an audible and visual alarm.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0010] The utility model arranges the infrared grating device on the same side of the scale and firmly fixes it with a locking mechanism, which effectively prevents the driver from using external tools to modify the weighing data or bypassing the scale system to cheat, thereby improving the accuracy and fairness of the weighing data, effectively preventing overloaded vehicles from going on the road, reducing the risk of road traffic accidents, and also maintaining the normal order and competitive environment of the road transportation industry.

[0011] The utility model adopts the structure of the support rod and the locking mechanism, which effectively fixes the infrared grating device and avoids the problem of system instability and unreliability caused by movement or external interference.

[0012] The design of the locking mechanism makes the installation and removal process simple and quick, without the need to modify the housing of the infrared grating equipment, thus reducing the difficulty and cost of installation and maintenance.

[0013] Due to the universality of the locking mechanism design, it is suitable for infrared grating equipment of various models and specifications, which improves the flexibility and application scope of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of a system in an embodiment of the utility model;

[0015] Figure 2It is an isometric view of the support rod and its locking mechanism at the infrared grating emission end in the embodiment of the utility model;

[0016] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0017] Figure 4 It is an isometric view of the chassis in the embodiment of the utility model.

[0018] The figure marks include: 1. floor scale; 2. infrared grating transmitting end; 3. infrared grating receiving end; 4. support rod; 5. chassis; 6. boss; 7. U-shaped groove; 8. support rod; 9. base; 10. screw rod; 11. fixing rod; 12. nut. DETAILED DESCRIPTION

[0019] Hereinafter, the technology in the embodiments of the present invention will be described clearly and completely in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, not all of them; based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present invention. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0020] Reference Figure 1 The present embodiment provides a system for preventing fraud in weighing transport vehicles, including a floor scale 1 and an infrared grating device. Support rods 4 are respectively provided on the ground at the four corners of the floor scale 1. The support rods 4 are used to fix the infrared grating device. The infrared grating device includes an infrared grating transmitting end 2 and an infrared grating receiving end 3. The infrared grating transmitting end 2 and the infrared grating receiving end 3 are respectively fixed on two support rods 4 on the same side of the floor scale 4; the system also includes an alarm device, which is connected to the alarm signal output end of the infrared grating device; the support rods 4 are fixed to the ground by a locking mechanism.

[0021] Reference Figures 2 to 4The locking mechanism includes a chassis 5, the upper end surface of which is integrally formed with a cylindrical boss 6. Three U-shaped grooves 7 are evenly opened along the periphery of the boss 6, and a screw 10 is hinged in each U-shaped groove 7. The lower end of the support rod 4 is provided with an integrally formed base 9, and its cross-sectional profile matches the boss 6, that is, the corresponding position on the base 9 is also provided with a U-shaped groove, so when the screw 10 is erected, it will be stuck in the groove on the edge of the base 9. When the nut 12 is tightened, it will contact the upper end surface of the base 9, thereby achieving locking. The length of the screw 10 is greater than the height of the base 9. When in use, the chassis 5 is fixed to the ground, and the base 9 is placed on the boss 6 and aligned with the profile of the boss 6. Then the screw 10 is erected vertically, and the nut 12 is screwed into the upper end surface of the base and tightened, thereby achieving the locking of the base 9 and the chassis 5.

[0022] Reference Figure 4 A fixing rod 11 is arranged in the U-shaped groove 7 of the boss 6, and the U-shaped groove 7 has transverse openings on both sides thereof and penetrates the cylindrical surface of the boss 6, and these openings are used to insert the fixing rod 11. The hinged end of the screw rod 10 is annular, and the middle part of the fixing rod 11 exposed in the U-shaped groove 7 is hinged to the annular hinged end of the screw rod 10, so that the screw rod 10 can rotate freely under the support of the fixing rod 11, and realizes the hinged connection with the boss 11.

[0023] Preferably, in this embodiment, the alarm device adopts an audible and visual alarm.

[0024] The working principle of this embodiment is as follows:

[0025] The overload of vehicles leaving the factory is monitored through infrared grating devices, and an alarm is triggered when the driver attempts to cheat. The infrared grating device is used to detect the entry and exit of people in the prevention area, the controller is used to power and deploy the equipment, and the alarm device is used to sound an alarm when an abnormal situation is detected. The infrared grating device is set in the prevention area around the factory scale. Once a person enters the area, the infrared grating device will detect it and send a signal to the controller. After receiving the signal, the controller will trigger the alarm device and send an audible and visual signal alarm to remind relevant personnel that someone has entered the prevention area and there may be cheating. The locking mechanism can completely prevent high-IQ illegal drivers from translating one end of the grating to make the control invalid.

Claims

1. A system for preventing fraud in weighing transport vehicles, the system comprising a weighbridge and an infrared grating device, It is characterized in that Support rods are respectively provided on the ground at the four corners of the floor scale, and the support rods are used to fix the infrared grating device, and the infrared grating device includes an infrared grating transmitting end and an infrared grating receiving end, and the infrared grating transmitting end and the infrared grating receiving end are respectively fixed on two support rods on the same side of the floor scale; the system also includes an alarm device, and the alarm device is connected to the alarm signal output end of the infrared grating device; the support rods are fixed to the ground by a locking mechanism.

2. A system for preventing fraud in weighing transport vehicles according to claim 1, It is characterized in that The locking mechanism includes a chassis, an upper end surface of the chassis is integrally formed with a cylindrical boss, the boss has three U-shaped grooves evenly arranged along the circumference, a screw is hinged in the U-shaped groove, and the lower end of the support rod is provided with an integrally formed base, the cross-sectional profile of the base matches the cross-sectional profile of the boss, the length of the screw is greater than the height of the base. When in use, the chassis is fixed to the ground, the base is placed on the boss and aligned with the boss profile, the screw is erected vertically, and then the nut is screwed into the upper end surface of the base and tightened to achieve locking of the base and the chassis.

3. A system for preventing fraud in weighing transport vehicles according to claim 2, It is characterized in that A fixing rod is provided in the U-shaped groove, and transverse openings are provided on both sides of the U-shaped groove. The openings penetrate the cylindrical surface of the boss for inserting the fixing rod. The hinged end of the screw rod is annular, and the middle part of the fixing rod exposed in the U-shaped groove is hinged to the hinged end of the screw rod.

4. A system for preventing fraud in weighing transport vehicles according to claim 1, It is characterized in that The alarm device is an audible and visual alarm.

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