Axle load detection device for motor vehicle detection

Abstract

The utility model discloses an axle load detection device for motor vehicle detection, which belongs to the technical field of axle load detection devices and comprises a weighing platform, a pressure sensor fixedly mounted at the top of the weighing platform, a bearing plate fixedly mounted at the top of the pressure sensor, and mounting grooves formed in the outer walls of the two sides of the weighing platform. Mounting blocks are movably arranged in the mounting grooves, positioning holes are formed in the outer walls of the mounting blocks, fixing grooves are formed in the sides, close to each other, of the two mounting grooves, first movable doors are rotatably arranged on the front end faces of the fixing grooves, rotating plates are rotatably arranged in the fixing grooves, and positioning screw holes are formed in the bottoms of the fixing grooves; a positioning screw rod is movably arranged on the surface of the rotating plate in a penetrating manner. Through the structural design of the set square, the mounting groove, the mounting block, the positioning hole, the positioning rod, the moving block, the vertical rod, the fixed groove, the rotating plate and the threaded rod, the set square can be conveniently disassembled, assembled and replaced, so that axle load detection can be better carried out on a motor vehicle, and the use effect is good.

Description

Axle load detection device for motor vehicle inspection Technical Field

[0001] This utility model relates to the technical field of axle load detection devices, specifically an axle load detection device for motor vehicle inspection. Background Technology

[0002] A motor vehicle axle load meter is an instrument used to measure the axle load on a motor vehicle axle. Axle load refers to the weight of a locomotive or vehicle borne by an axle pair. Axle load reflects the static load strength of the wheel bearings of a motor vehicle, and it determines the average stress level of alternating stress in various components. From a design perspective, axle load is a very important parameter, as it is closely related to the performance of a motor vehicle. Axle load and wheelbase determine the position of the center of gravity of a motor vehicle. Therefore, once the wheelbase and axle load of a motor vehicle change, the overall layout design must be redesigned. Thus, it is necessary to frequently use an axle load meter to detect the axle load on the motor vehicle axle.

[0003] A search revealed Chinese patent CN212340392U, which discloses an axle load tester for motor vehicle inspection. The tester includes a load-bearing plate, a base, a triangular plate, a pressure sensor, a microprocessor, and a display. The microprocessor and pressure sensor are located between the load-bearing plate and the base, with one contact point between the microprocessor and both components. The pressure sensor detects deformation of the load-bearing plate and is signal-connected to the microprocessor. The display shows data processed by the microprocessor. The triangular plate is located on both sides of the base. The load-bearing plate has mounting cavities, and the pressure sensor is housed within these cavities. Support members are also provided on the base, located within the mounting cavities and surrounding the pressure sensor. Anti-slip plates are provided on the triangular plate, and a base plate with mounting holes is provided on the base. This invention effectively prevents damage to the pressure sensor and load-bearing plate when the measurement range is exceeded, thanks to the support members.

[0004] However, the above design still has shortcomings. In the above design, when using the axle load meter, the motor vehicle drives over the triangular plate and moves to the load-bearing plate for weighing. However, in the long-term use, because the triangular plate and the load-bearing plate are molded as one piece, the triangular plate is prone to deformation or damage under the repeated rolling of the motor vehicle wheels, and it is not easy to replace, resulting in poor performance.

[0005] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to provide an axle load detection device for motor vehicle inspection, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A vehicle axle load detection device, comprising a weighing platform, a pressure sensor fixedly mounted on the top of the weighing platform, a load-bearing plate fixedly mounted on the top of the pressure sensor, mounting grooves on both outer walls of the weighing platform, mounting blocks movably disposed inside the mounting grooves, positioning holes on the outer walls of the mounting blocks, and fixing grooves on the sides of the two mounting grooves that are close to each other. A first movable door is rotatably disposed on the front end face of the fixing groove, a rotating plate is rotatably disposed inside the fixing groove, and a positioning screw hole is disposed at the bottom of the fixing groove. A positioning screw is movably disposed through the surface of the rotating plate, and one end of the positioning screw is threaded inside the positioning screw hole. A threaded rod is fixedly connected to the center of the bottom of the rotating plate via a transmission rod. A movable block is threadedly connected to the outer wall of the threaded rod, and a vertical rod is movably disposed through the surface of the movable block. Positioning rods are fixedly connected to the ends of the two movable blocks that are far apart from each other, and one end of the positioning rod is movably disposed inside the positioning hole. Triangular plates are fixedly connected to the sides of the two mounting blocks that are far apart from each other.

[0008] As a further embodiment of this utility model: the bottom of the triangular plate is provided with a groove, the upper surface of the triangular plate extends into the interior to provide a limiting groove, a limiting plate is movably provided inside the limiting groove, and a rubber anti-slip plate is fixedly connected to the top of the limiting plate.

[0009] As a further embodiment of this utility model: mounting cavities are provided on the outer walls of both sides of the lower end of the limiting plate, and a connecting limiting hole is provided on the side of the two mounting cavities that are far apart from each other. The limiting hole is connected to the interior of the groove, and a limiting block is movably arranged inside the limiting hole.

[0010] As a further embodiment of this utility model: a movable plate is fixedly connected to one side of each of the two limiting blocks that are close to each other, and a spring is fixedly connected to one side of each of the two movable plates that are close to each other.

[0011] As a further embodiment of this utility model: a display is fixedly installed on the front end face of the weighing platform, and a fixed cavity is provided on the right side of the display inside the weighing platform.

[0012] As a further embodiment of this utility model: a microprocessor is installed inside the fixed cavity, and a second movable door is rotatably provided on the front end face of the fixed cavity.

[0013] This utility model has the following beneficial effects:

[0014] The structural design of the triangular plate, mounting groove, mounting block, positioning hole, positioning rod, moving block, vertical rod, fixing groove, rotating plate, and threaded rod allows for easy disassembly and replacement of the triangular plate, thus facilitating better axle load testing of motor vehicles. This design offers superior performance and solves the problem of poor performance when using the axle load meter. Previously, when a vehicle drove over the triangular plate and moved to the load-bearing plate for weighing, the triangular plate was easily deformed or damaged under repeated pressure from vehicle wheels, making replacement difficult and resulting in poor performance.

[0015] Through the structural design of the rubber anti-slip plate, limiting groove, limiting plate, limiting hole, limiting block, moving plate, spring and mounting cavity, the friction between the rubber anti-slip plate and the vehicle wheel can be increased, making it easier for the vehicle to drive onto the load-bearing plate. At the same time, it can be easily disassembled and replaced, and the vehicle can be better inspected, thereby improving the practicality of the device. Attached Figure Description

[0016] Figure 1 is a partial three-dimensional schematic diagram of the overall structure of this utility model;

[0017] Figure 2 is a schematic diagram of the internal partial structure of the present invention from the front view.

[0018] Figure 3 is an enlarged partial structural diagram of point A of this utility model;

[0019] Figure 4 is an enlarged partial structural diagram of section B of this utility model.

[0020] In the diagram: 1. Weighing platform; 2. Rubber anti-slip plate; 3. Triangular plate; 4. Display; 5. Load-bearing plate; 6. Pressure sensor; 7. First movable door; 8. Groove; 9. Second movable door; 10. Limiting groove; 11. Limiting plate; 12. Fixed cavity; 13. Microprocessor; 14. Limiting hole; 15. Limiting block; 16. Moving plate; 17. Spring; 18. Mounting cavity; 19. Mounting groove; 20. Mounting block; 21. Positioning hole; 22. Positioning rod; 23. Moving block; 24. Vertical rod; 25. Fixed groove; 26. Rotating plate; 27. Positioning screw; 28. Positioning screw hole; 29. ​​Threaded rod. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Please refer to Figures 1-4. One embodiment of this utility model provides an axle load detection device for motor vehicle inspection, including a weighing platform 1. A pressure sensor 6 is fixedly installed on the top of the weighing platform 1, and a load-bearing plate 5 is fixedly installed on the top of the pressure sensor 6. Mounting grooves 19 are formed on the outer walls of both sides of the weighing platform 1. Mounting blocks 20 are movably arranged inside the mounting grooves 19. Positioning holes 21 are formed on the outer walls of the mounting blocks 20. Fixing grooves 25 are formed on the sides of the two mounting grooves 19 that are close to each other. A first movable door 7 is rotatably arranged on the front end face of the fixing groove 25. A rotating plate 26 is rotatably arranged inside the fixing groove 25. A positioning screw hole 28 is formed at the bottom of the fixing groove 25. A positioning screw 27 is movably arranged through the surface of the rotating plate 26, and the positioning screw is positioned... One end of the screw 27 is threaded inside the positioning screw hole 28. A threaded rod 29 is fixedly connected to the center of the bottom of the rotating plate 26 via a transmission rod. A moving block 23 is threadedly connected to the outer wall of the threaded rod 29. A vertical rod 24 is movably provided through the surface of the moving block 23. A positioning rod 22 is fixedly connected to the ends of the two moving blocks 23 that are far apart from each other. One end of the positioning rod 22 is movably provided inside the positioning hole 21. A triangular plate 3 is fixedly connected to the sides of the two mounting blocks 20 that are far apart from each other. A display 4 is fixedly installed on the front end face of the weighing platform 1. A fixed cavity 12 is provided on the right side of the display 4 inside the weighing platform 1. A microprocessor 13 is installed inside the fixed cavity 12. A second movable door 9 is rotatably provided on the front end face of the fixed cavity 12.

[0027] Specifically, as shown in Figures 1, 2, and 4, when it is necessary to disassemble and replace the triangle 3, the rotating plate 26 can be rotated. The rotation of the rotating plate 26 drives the threaded rod 29 to rotate via the transmission rod. The rotation of the threaded rod 29 drives the two moving blocks 23 to move closer to each other. The movement of the moving blocks 23 drives the positioning rod 22 to move until the positioning rod 22 disengages from the positioning hole 21. Then, the triangle 3 is moved outward until the mounting block 20 disengages from the mounting groove 19, thus completing the disassembly of the triangle 3. Similarly, the installation of the triangle 3 can be achieved, making it convenient to disassemble the triangle 3. The axle load tester can be disassembled and replaced to facilitate better axle load testing of motor vehicles, resulting in good performance. After the triangular plate 3 is installed, the positioning screw 27 can be passed through the rotating plate 26 and screwed into the positioning screw hole 28 to fix the rotating plate 26 and prevent it from rotating. This solves the problem that when using this axle load tester, the motor vehicle drives over the triangular plate 3 and moves to the load-bearing plate 5 for weighing. However, during long-term use, because the triangular plate 3 and the load-bearing plate 5 are integrally formed, the triangular plate 3 is prone to deformation or damage under the repeated rolling of motor vehicle wheels, making it difficult to replace and resulting in poor performance.

[0028] The system consists of a weighing platform 1, a display 4, a load-bearing plate 5, a pressure sensor 6, and a microprocessor 13. When a motor vehicle needs to be inspected, the driver first drives the vehicle onto the load-bearing plate 5, then gets off and on the vehicle. The load-bearing plate 5 and the pressure sensor 6 work together to inspect the vehicle and transmit the data to the microprocessor 13 for processing. The microprocessor 13 then transmits the processed results to the display 4 for display, making it convenient for inspectors to view.

[0029] The bottom of the triangle plate 3 is provided with a groove 8, and the upper surface of the triangle plate 3 extends into the interior to provide a limiting groove 10. A limiting plate 11 is movably provided inside the limiting groove 10. A rubber anti-slip plate 2 is fixedly connected to the top of the limiting plate 11. Mounting cavities 18 are provided on the outer walls of both sides at the lower end of the limiting plate 11. A connecting limiting hole 14 is provided on the side of the two mounting cavities 18 that is far apart from each other, and the limiting hole 14 is connected to the interior of the groove 8. A limiting block 15 is movably provided inside the limiting hole 14. A movable plate 16 is fixedly connected to the side of the two limiting blocks 15 that is close to each other. A spring 17 is fixedly connected to the side of the two movable plates 16 that is close to each other.

[0030] Specifically, as shown in Figures 1, 2, and 3, during use, the rubber anti-slip plate 2 increases the friction with the vehicle wheels, making it easier for the vehicle to drive onto the load-bearing plate 5. When the rubber anti-slip plate 2 is damaged to a certain extent and needs replacement, pressing the limiting block 15 moves it away from the limiting hole 14 and towards the mounting cavity 18. Once the limiting block 15 reaches the appropriate position, the rubber anti-slip plate 2 is moved upwards until the limiting plate 11 disengages from the limiting groove 10, thus completing the disassembly of the rubber anti-slip plate 2. Similarly, the rubber anti-slip plate 2 can be installed. By facilitating the disassembly and replacement of the rubber anti-slip plate 2, vehicle inspection can be better performed, thereby improving the practicality of the device.

[0031] Working principle: In this application, when it is necessary to disassemble and replace the triangle plate 3, the rotating plate 26 can be rotated. The rotation of the rotating plate 26 drives the threaded rod 29 to rotate via the transmission rod. The rotation of the threaded rod 29 drives the two moving blocks 23 to move in a direction closer to each other. The movement of the moving blocks 23 drives the positioning rod 22 to move until the positioning rod 22 disengages from the positioning hole 21. Then, the triangle plate 3 is moved outward until the mounting block 20 disengages from the mounting groove 19, thereby completing the disassembly of the triangle plate 3. Similarly, the installation of the triangle plate 3 can be achieved. By facilitating the disassembly and replacement of the triangle plate 3, it is easier to perform axle load detection on motor vehicles. The effect is good. Secondly, it can be achieved through rubber... The rubber anti-slip plate 2 increases the friction with the vehicle wheels, making it easier for the vehicle to drive onto the load-bearing plate 5. When the rubber anti-slip plate 2 is damaged to a certain extent and needs to be replaced, the limiting block 15 can be pressed to move the limiting block 15 away from the limiting hole 14 and closer to the mounting cavity 18. When the limiting block 15 moves to the appropriate position, the rubber anti-slip plate 2 is moved upward until the limiting plate 11 disengages from the limiting groove 10, thus completing the disassembly of the rubber anti-slip plate 2. Similarly, the rubber anti-slip plate 2 can be installed. By facilitating the disassembly and replacement of the rubber anti-slip plate 2, better vehicle inspection can be carried out, thereby improving the practicality of the device.

[0032] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. At the same time, the electrical components mentioned in this application are all connected to an external power supply and control switch when in use. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Therefore, this utility model will not explain the control method and circuit connection in detail. Moreover, the external controller mentioned in the specification can play a control role for the electrical components mentioned in this article, and the external controller is a conventional known device.

[0033] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above are only preferred embodiments of this utility model. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this utility model, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A motor vehicle axle load testing device, comprising a weighing platform (1), characterized in that: A pressure sensor (6) is fixedly installed on the top of the weighing platform (1), and a load-bearing plate (5) is fixedly installed on the top of the pressure sensor (6). Mounting grooves (19) are provided on the outer walls of both sides of the weighing platform (1). Mounting blocks (20) are movably arranged inside the mounting grooves (19). Positioning holes (21) are provided on the outer walls of the mounting blocks (20). Fixing grooves (25) are provided on the sides of the two mounting grooves (19) that are close to each other. A first movable door (7) is rotatably arranged on the front end face of the fixing groove (25). A rotating plate (26) is rotatably arranged inside the fixing groove (25). A positioning screw hole (28) is provided at the bottom of the fixing groove (25). A positioning screw (27) is movably disposed through the surface of the rotating plate (26), and one end of the positioning screw (27) is threaded inside the positioning screw hole (28). A threaded rod (29) is fixedly connected to the center of the bottom of the rotating plate (26) through a transmission rod. A moving block (23) is threadedly connected to the outer wall of the threaded rod (29). A vertical rod (24) is movably disposed through the surface of the moving block (23). A positioning rod (22) is fixedly connected to the ends of the two moving blocks (23) that are far apart from each other. One end of the positioning rod (22) is movably disposed inside the positioning hole (21). A triangular plate (3) is fixedly connected to the sides of the two mounting blocks (20) that are far apart from each other.

2. The axle load detection device for motor vehicle inspection according to claim 1, characterized in that: The bottom of the triangular plate (3) is provided with a groove (8), and the upper surface of the triangular plate (3) extends into the interior to provide a limiting groove (10). A limiting plate (11) is movably provided inside the limiting groove (10), and a rubber anti-slip plate (2) is fixedly connected to the top of the limiting plate (11).

3. The axle load detection device for motor vehicle inspection according to claim 2, characterized in that: The lower end of the limiting plate (11) has two outer walls on which mounting cavities (18) are provided. The two mounting cavities (18) are provided with connecting limiting holes (14) on the side away from each other. The limiting holes (14) are connected to the inside of the groove (8). The limiting holes (14) are movably provided with limiting blocks (15) inside the limiting holes (14).

4. The axle load detection device for motor vehicle inspection according to claim 3, characterized in that: Each of the two limiting blocks (15) is fixedly connected to a movable plate (16) on the side that is close to each other, and each of the two movable plates (16) is fixedly connected to a spring (17) on the side that is close to each other.

5. The axle load detection device for motor vehicle inspection according to claim 1, characterized in that: A display (4) is fixedly installed on the front end of the weighing platform (1), and a fixed cavity (12) is provided on the right side of the display (4) inside the weighing platform (1).

6. The axle load detection device for motor vehicle inspection according to claim 5, characterized in that: The fixed cavity (12) is equipped with a microprocessor (13), and a second movable door (9) is rotatably provided on the front end face of the fixed cavity (12).

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