A dynamic weight measuring device for road-going vehicles

Abstract

The present application relates to the field of dynamic weight measurement of traveling vehicles, and in particular to a dynamic weight measurement device for traveling vehicles on roads, which includes a plate frame, a plurality of plate beams are arranged inside the plate frame, a strain sensor is arranged between the plate beam and the inner side wall of the plate frame, and is connected to the plate beam, and also includes a partition plate, which is vertically arranged between the plate beam and the inner side wall of the plate frame, and a plurality of pieces are evenly spaced along the length direction of the plate beam, and the length direction of the partition plate is perpendicular to the length direction of the plate beam. The mounting plate is vertically arranged and slidably connected to the plate beam and between two adjacent partition plates, and the mounting plate is parallel to the partition plate, and is used to fix the strain sensor. The first sliding member is arranged between adjacent plate beams, connected to the mounting plate, and drives the mounting plate to slide along the length direction of the plate beam; the second sliding member is arranged on one side of the strain sensor, connected to the mounting plate, and drives the strain sensor to slide. The present invention has the effect of improving the accuracy of dynamic weight measurement of vehicles and adapting to traffic with different wheelbases.

Description

Technical Field

[0001] The present application relates to the field of dynamic weight measurement of traveling vehicles, and in particular to a dynamic weight measurement device for traveling vehicles on roads. Background Art

[0002] In the field of road safety, some non-dedicated roads and bridges with special structures have a load-bearing limit. When an overweight vehicle enters a road section with a load-bearing limit, it will accelerate the wear of the road surface and the collapse of the bridge. Therefore, it is necessary to limit the load of vehicles and protect the integrity of the road and bridge structures.

[0003] Common road weighing devices are generally static weighing. For example, in front of a road toll station, vehicles need to slow down and pass slowly or stop temporarily. This has a great impact on traffic and is likely to cause congestion behind. There are now dynamic weighing devices, which install multiple strain sensors inside the weighing body. When the vehicle drives onto the weighing device, the strain sensors of the weighing device are compressed and deformed to generate electrical signals, measure the instantaneous pressure value, and complete the weight measurement of a single vehicle.

[0004] However, the strain sensor on the existing dynamic weighing device is fixed, and the sensor position cannot be adjusted after the dynamic weighing device is installed on the road surface, resulting in large errors in the measurement of vehicles with different wheelbases. In view of the above-mentioned related technologies, the inventor believes that it is extremely necessary to set different sensor spacings for different traffic flows to avoid weighing errors caused by different sensor positions as much as possible.

[0005] Application Contents In order to improve the accuracy of dynamic weight measurement of vehicles and adapt to traffic with different wheelbases, the present invention provides a dynamic weight measurement device for road-going vehicles.

[0006] The present invention provides a dynamic weighing device for a road-going vehicle, which adopts the following technical solution: A dynamic weighing device for a road-going vehicle comprises a plate frame, a plurality of plate beams are arranged inside the plate frame, a strain force sensor is arranged between the plate beam and the inner side wall of the plate frame, and is connected to the plate beam, and further comprises: A partition plate is vertically arranged between the plate beam and the inner side wall of the plate frame, and a plurality of partition plates are evenly spaced along the length direction of the plate beam, wherein the length direction of the partition plate is perpendicular to the length direction of the plate beam; A mounting plate is vertically arranged and slidably connected between the plate beam and two adjacent partition plates, wherein the mounting plate is parallel to the partition plates and is used to fix the strain sensor; A first sliding member is disposed between adjacent plate beams, connected to the mounting plate, and drives the mounting plate to slide along the length direction of the plate beam; The second sliding member is arranged at one side of the strain force sensor, connected to the mounting plate, and drives the strain force sensor to slide along a length direction perpendicular to the plate beam.

[0007] By adopting the above technical solution, the plate frame is the main body of the weighing device when the car is driving on the road. The whole is in the shape of a rectangular plate, which is similar to the shape of a scale. When installing, the corresponding part of the road surface should be broken and grooved, and the plate frame should be installed in the groove on the road surface. The top of the plate frame is flush with the road surface. When the car passes through the dynamic weighing device, the strain force sensor installed inside the plate frame is compressed, and the weight of the car is judged according to the detected pressure value. The plate beams inside the plate frame are arranged along the length direction of the plate frame, dividing the inside of the plate frame into a plurality of long strips of space, and the mounting plate divides each long strip of space into a plurality of blocks, so that there are a plurality of grid spaces inside the plate frame, and each grid space can be used to install strain sensors. The technicians can install strain sensors in all or part of the grids according to the road surface requirements; The detection end of the strain force sensor is upward, so that when a car passes by, the detection end of the strain force sensor detects pressure. The main body of the strain force sensor is fixedly mounted on the mounting plate. When the position of the strain force sensor needs to be adjusted, the first sliding member and the second sliding member drive the strain force sensor to adjust the position in the horizontal plane; the sliding direction of the first sliding member is perpendicular to the sliding direction of the second sliding member, and the strain force sensor can be adjusted to any reasonable position inside the grid space; In practical applications, multiple strain sensors should be arranged on both sides of the plate frame. The strain sensors on both sides of the plate frame correspond to the wheelbases of the tires on both sides of the car. When the first sliding member adjusts the position of the strain sensor with the second sliding member, the spacing between the strain sensors on both sides of the plate frame is adjusted.

[0008] Optionally, the first sliding member includes: A slide rail, the length direction of which is parallel to the length direction of the plate beam, and is horizontally arranged between two adjacent partition plates; The electric slide is slidably connected to the slide rail and connected to the mounting plate to drive the mounting plate to slide.

[0009] By adopting the above technical scheme, a slide rail is arranged in the long strip space near the inner center part of the plate frame. The slide rail can be fixed on the bottom wall of the plate frame, and can also be fixed on the vertical plate surface of the two adjacent dividing plates above the bottom wall of the plate frame. A slide is arranged on the slide rail, which can be driven by electricity, that is, a common electric slide. The electric slide has the advantages of precise sliding distance and stable sliding process, and is a relatively simple method to realize electric control; one side edge of the mounting plate extends to the inside of another long strip space, and the mounting plate is driven by the electric slide to slide along the length direction of the plate beam.

[0010] Optionally, a groove structure adapted to the plate beam is provided on the bottom edge of the mounting plate; The plate beam connected to the mounting plate is arranged obliquely.

[0011] By adopting the above technical solution, the groove structure at the bottom end of the mounting plate is adapted to the bottom end of the plate beam, so that the mounting plate and the plate beam are vertically and horizontally clamped, and the mounting plate is stably clamped with the plate beam under the action of gravity, and the clamping connection through the groove structure is a non-rigid connection, which can achieve both a stable connection and a sliding guide of the mounting plate; Furthermore, the plate beam is tilted at a preset angle, and the groove structure of the mounting plate is adapted to the tilted plate beam, thereby enhancing the sliding stability and connection strength of the mounting plate and the plate beam; In addition, the mounting plate in the present solution also plays the role of supporting the top of the plate frame. Due to the clamping connection between the mounting plate and the plate beam, the top side edge of the mounting plate is higher than the plate beam, and the top side edge of the mounting plate supports the top wall of the plate frame. When a car passes by on the road, the mounting plate plays a supporting role to prevent the top wall of the plate frame from bending.

[0012] Optionally, the second sliding member includes: An intermediate plate, the plate surface of which is vertically arranged and arranged on one side of the mounting plate; The electric push rod is horizontally arranged, the cylinder body is fixedly connected to the surface of the middle plate, and the end of the piston rod of the electric push rod is connected to the strain force sensor.

[0013] By adopting the above technical solution, the middle plate is connected to the mounting plate. When the mounting plate is driven to slide by the slide table, the middle plate slides accordingly. The middle plate is the main supporting structure of the second sliding member. The main body of the electric push rod is horizontally arranged and fixed on the middle plate. The middle plate is used as a basic structural member to support the electric push rod. The piston rod of the electric push rod is extended to adjust the position of the strain force sensor. In order to enhance the extension stability of the piston rod of the electric push rod and improve the sliding accuracy of the strain force sensor, an electric push rod is arranged on each corner part of the mounting plate corresponding to the strain force sensor, and multiple electric push rods move simultaneously to push the strain force sensor to slide.

[0014] Optionally, it also includes; A pressure plate is arranged on the top of the plate frame. The pressure plate is provided with a detection plate corresponding to the strain force sensor. The surface of the detection plate is flush with the surface of the pressure plate, and the bottom surface of the detection plate abuts against the top of the strain force sensor.

[0015] By adopting the above technical solution, the pressure plate is set on the top of the plate frame, keeping it flush with the road surface, replacing the road surface to ensure the integrity of the road surface; at the same time, it protects the electronic control structure such as the strain sensor inside the plate frame; A detection plate is arranged on the pressure plate. The detection plate should be arranged one by one corresponding to the grid space inside the plate frame in actual application. The bottom end of the detection plate abuts against the detection end of the strain force sensor and is only supported by the detection end of the strain force sensor. When the car enters the dynamic weighing device and the tire of the car presses down the detection plate, the detection plate transmits the pressure to the strain force sensor to complete the weighing of the car. At the same time, in actual applications, the part of the pressure plate corresponding to the detection plate should be equipped with an anti-warping structure to prevent the pressure plate from being warped by the tire. This is mainly to deal with the situation where the car tire instantly rolls over one end of the detection plate when the car is driving, causing the other end of the detection plate to warp. This can protect the strain force sensor and the straightness of the detection plate at the same time. In addition, the warping of the detection plate will bring huge noise. Therefore, an anti-warping structure is necessary in actual applications.

[0016] Optionally, a wire groove is horizontally opened in the central part of the plate beam; and a wire threading tube is arranged at the bottom of each partition plate.

[0017] By adopting the above technical solution, the data, signal transmission line, electric control line of each strain force sensor and the electric control lines of the above electric push rod and slide table need to be led to the outside of the dynamic weighing device; The threading tube is set between every two adjacent partitions, corresponding to the strain sensors between every two adjacent partitions one by one. The transmission lines of the strain sensors are collected through the corresponding threading tubes, and the transmission lines of the strain sensors are always constrained by the threading tubes during the position change process, ensuring the orderly distribution of the wire harness within the limited space of the two adjacent partitions; the transmission lines on the same side of the plate frame are collected through multiple threading tubes; The wire trough is opened on the side wall of the frame, and the transmission lines gathered from the wire threading tube extend from the wire threading tube to the outside of the frame, connecting the corresponding electric control components or setting a collection component through the wire trough on the corresponding frame, and gathering to the corresponding electric control components.

[0018] Optionally, the top side edges of the plurality of plate beams are bent toward a direction close to a central portion of the plate frame, and the height of the top side edges of the plate beams is higher than the height of the mounting plate.

[0019] By adopting the above technical solution, the top side edge of the plate beam is bent toward the direction close to the center part of the plate frame, so that the top side edge of the plate beam extends horizontally toward the center part of the plate beam, forming an L-shape as a whole. The horizontal part of the L-shaped edge is used to abut the mounting plate at the top of one side edge of the plate frame, and the bottom surface of the horizontal side abuts the top of one end of the mounting plate, thereby limiting the mounting plate when it slides and enhancing the sliding stability of the mounting plate.

[0020] Optionally, also include: A support plate is arranged at the central part of the plate frame, and two opposite side edges of the support plate are connected to two adjacent plate beams; A buffer block is arranged on the inner wall of the plate frame and abuts against the plate beam.

[0021] By adopting the above technical solution, the support plate and the buffer block mainly play a protective role, protecting the structure of the plate frame and the specific active component structure inside the plate frame; the support plate is arranged at the central part of the plate frame, and abuts against the plate beams on both sides by means of the plate-shaped structure to maintain the spacing between the plate beams on both sides. Therefore, in this solution, the support plate is mainly used to support the spacing of the support structure of the strain force sensor on both sides of the plate beam; The buffer block is arranged at the edge of the inner wall of the plate beam. The buffer block is made of soft material, preferably polyurethane, and offsets the pressure transmitted by the plate beam through soft contact. When the car passes the dynamic weighing device at a high speed, the car presses down the support plate and the partition plate, and the partition plate and the support plate transmit the pressure horizontally to the plate beam at the edges of both sides of the plate frame. The plate beam squeezes the buffer block, and the deformation of the buffer block offsets the pressure applied by the plate beam to the inner wall of the plate frame, thereby protecting the overall structure of the dynamic weighing device. The plate beams at the edge of the dynamic weighing device are used to support the weighing structures on both sides of the dynamic weighing device. Deformation under pressure will cause the sliding support structure of the strain sensor to be distorted, reducing the accuracy of vehicle weighing.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. By setting up the partition plate and the mounting plate, the strain sensor can slide freely in the length direction and vertical direction of the plate beam, which improves the adaptability of the device to different vehicle models and loads and the measurement accuracy; 2. The first sliding member includes a slide rail and a slide table, and the mounting plate can slide along the slide rail through the slide table, which facilitates the installation and adjustment of the strain force sensor, simplifies the overall structure, and enhances the practicability of the device; 3. The groove structure on the bottom edge of the mounting plate and the inclined plate beam make the strain sensor more stable and adaptable to different location requirements, further improving the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0024] Figure 2 It is a structural schematic diagram used to highlight the detection board in the embodiment of the present application.

[0025] Figure 3 It is a structural schematic diagram used to highlight the mounting plate in the embodiment of the present application.

[0026] Figure 4 It is a structural schematic diagram used to highlight the wire threading tube in the embodiment of the present application.

[0027] Figure 5 It is a structural schematic diagram used to highlight the wire threading groove in the embodiment of the present application.

[0028] Explanation of the reference numerals: 1. Plate frame; 11. Wire threading main pipe; 12. Pressing plate; 13. Detection plate; 14. Buffer block; 15. Filling rack; 2. Strain sensor; 3. Plate beam; 31. Partition plate; 32. Mounting plate; 33. Electric slide; 34. Middle plate; 35. Electric push rod; 36. Wire threading tube; 37. Wire threading groove; 4. Support plate. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-5 This application is described in further detail.

[0030] The present application embodiment discloses a dynamic weighing device for a road-going vehicle. Figure 1 A dynamic weighing device for road-going vehicles includes a plate frame 1, which is in the shape of a rectangular plate. The top and side surfaces of the plate frame 1 are horizontal and are provided with a pressure plate 12, which is the top surface of the dynamic weighing device. Technicians dig a groove in the road surface and put it into the dynamic weighing device. The surface of the pressure plate 12 is used to replace the original road surface. The pressure plate 12 is provided with anti-skid patterns to simulate the friction of the original road surface to prevent the vehicle from slipping. Filling frames 15 are provided on both sides of the plate frame 1. The filling frames 15 are distributed along the length direction of the dynamic weighing device. The inside of the filling frames 15 can be used to install metal rods or to fill cement to fix the dynamic weighing device.

[0031] Reference Figure 1 A plurality of detection plates 13 are arranged on both sides of the pressing plate 12. The detection plates 13 are evenly spaced and parallel to the length of the pressing plate 12. The surfaces of the pressing plate 12 and the detection plates 13 are flush, and the four side edges of the detection plates 13 are attached to the pressing plate 12. Therefore, the detection plates 13 can be regarded as a part of the pressing plate 12.

[0032] Reference Figure 2 The interior of the plate frame 1 is hollow, and a plate beam 3 is arranged on the inner bottom wall. The plate beam 3 is a vertical rectangular plate. The bottom edge of the plate beam 3 is welded to the inside of the plate frame 1 to form an integral body. The length direction of the plate beam 3 is parallel to the length direction of the plate frame 1. The two ends of the plate beam 3 are welded to the inner walls of the two ends of the plate frame 1, so that the plate beam 3 serves as the skeleton structure of the plate frame 1, supporting the plate frame 1 to ensure the structural integrity of the plate frame 1; multiple plate beams 3 divide the internal space of the plate frame 1 into multiple strip spaces, which are strip bins, and multiple strip bins constitute the internal space of the plate frame 1 as a whole.

[0033] Reference Figure 2 In this embodiment, a total of six plate beams 3 are arranged, and the six plate beams 3 are distributed along the width direction of the plate frame 1, and are symmetrically distributed on both sides of the plate frame 1 along the center of the plate frame 1. A gap of preset width is arranged between the six plate beams 3 distributed on the outermost sides and the inner wall of the plate frame 1. Therefore, the strip bin only refers to the space part between the six plate beams 3.

[0034] Reference Figure 2 , the inner bottom wall of the plate frame 1 is fixed with multiple partition plates 31, the plate surface of the partition plate 31 is vertical, the length direction of the partition plate 31 is perpendicular to the length direction of the plate beam 3, the two ends of the partition plate 31 extend to the two plate beams 3 distributed on the outermost side, the bottom end of the partition plate 31 is welded to the bottom end of the plate frame 1, the partition plate 31 and the plate beam 3 are perpendicular to each other, and the connection points are welded and fixed, dividing the internal space of the plate frame 1, or each bar bin into multiple grid-type spaces, which are grid bins. The strain force sensor 2 is arranged in each grid bin, the size of the above-mentioned detection sheet is adapted to the size of each grid bin, and each detection sheet is arranged one-to-one above each grid bin.

[0035] Reference Figure 3 and Figure 4 In this embodiment, the strain sensor 2 can adopt a piezoelectric sensor. Taking a strain sensor 2 as an example, the strain gauge of the strain sensor 2 is horizontally arranged on the top of the cell, and is attached to the detection plate 13. The detection plate 13 is compressed and transmits the pressure to the strain sensor 2. The strain sensor 2 is compressed and detects the pressure value through the piezoelectric effect. In this embodiment, the body of the strain sensor 2 is fixed by a specific mounting structure. Specifically, a vertically arranged mounting plate 32 is slidably connected on the plate beam 3, and two mounting plates 32 are vertically arranged corresponding to each cell. The spacing between the two mounting plates 32 is adapted to the spacing of the strain sensor 2. The strain sensor 2 is fixed to the two mounting plates 32 by bolts. One end of the two mounting plates 32 in each cell extends to another cell in the width direction of the plate frame 1. A first sliding member is arranged in the other cell. The first sliding member connects the two mounting plates 32 to drive the two mounting plates 32 and the strain sensor 2 between the two mounting plates 32 to slide. The first sliding member includes a slide rail arranged in the cell, the slide rail is arranged horizontally, welded or integrally formed on the bottom wall of the cell, and the two ends extend to the partition plate 31. The slide rail is slidably connected with an electric slide 33. The electric slide 33 is a prior art and is not described in detail. The electric slide 33 is arranged between the two partition plates 31, and the electric slide 33 drives the two partition plates 31 to slide and drives the strain force sensor 2 to slide; the bottom edge of the mounting plate 32 between the strain force sensor 2 and the electric slide 33 corresponds to the plate beam 3 and is provided with a snap-in groove that is adapted to the shape of the plate beam 3. The plate beam 3 is snap-in by using the snap-in groove, so that when the mounting plate 32 slides, the plate beam 3 plays a guiding role.

[0036] Reference Figure 3 and Figure 5In order to stabilize the sliding of the mounting plate 32 and improve the position adjustment accuracy of the strain sensor 2, the plate beam 3 used for guiding is tilted. Under the action of gravity, the wall of the clamping groove on the bottom side of the mounting plate 32 is subjected to the friction of the side wall of the plate beam 3, and the friction is used to improve the stability. The top edges of the two plate beams 3 distributed on the outermost sides of the multiple plate beams 3 are bent horizontally inward, so that the two plate beams 3 are L-shaped as a whole; one end of the mounting plate 32 extends to the bottom end of the horizontal part of the L-shaped plate beam 3 and abuts against the vertical body part of the plate beam 3. Limited by its horizontal bending structure, the sliding stability of the mounting plate 32 is further improved.

[0037] Reference Figure 3 A second sliding member is arranged between the two mounting plates 32, and the second sliding member is used to drive the strain force sensor 2 to slide in a direction perpendicular to the slide rail; the second sliding member includes an intermediate plate 34 and an electric push rod 35. The intermediate plate 34 is vertically arranged between the two mounting plates 32 and between the strain force sensor 2 and the plate beam 3. The two opposite side edges of the intermediate plate 34 are fixedly connected to the two mounting plates 32. Some of the intermediate plates 34 near the strain force sensor 2 are provided with multiple electric push rods 35. In actual application, micro electric push rods 35 are used. Multiple electric push rods 35 are distributed on the edge part of the strain force sensor 2. The piston rods of the multiple electric push rods 35 are extended and retracted simultaneously and synchronously, and the strain force sensor 2 is pushed to any reasonable position in cooperation with the electric slide 33.

[0038] Reference Figure 4 and Figure 5 When the electric slide 33 and the electric push rod 35 push the strain force sensor 2 to slide, in order to ensure that the wiring harness inside the cell is neatly distributed, a horizontally arranged wire threading tube 36 is fixedly connected to the bottom edge of the side wall of each cell, that is, the bottom of the side wall of the partition plate 31. The wire threading tube 36 is tubular and its length is less than the width of the cell to reserve enough space for the wire harness to pass through. When the electric slide 33 and the electric push rod 35 slide, their connecting wires are bound to the wire threading tube 36 as a whole; the two plate beams 3 on the two side edges of the plate frame 1 are horizontally penetrated with wire grooves, which lead the wire harnesses on the multiple wire threading tubes 36 horizontally distributed along the length direction of the plate frame 1 to the outside of the plate frame 1.

[0039] Reference Figure 1 In practical applications, the wiring harness is specifically the data transmission line and wire control line of the strain sensor 2, as well as the electric control line of the electric slide 33 and the electric push rod 35. In addition to the grooves, a threading main pipe 11 can also be set at the corner of the outer wall of the plate frame 1 to transport the wiring harnesses from all the threading pipes 36 in the plate frame 1 to the outside to connect the external electronic control components.

[0040] Reference Figure 3, a buffer block 14 is arranged between the plate frame 1 and the two plate beams 3 distributed at the edges of both sides thereof. The buffer block 14 is made of polyurethane and is fixed on the inner walls of both sides of the plate frame 1. The buffer blocks 14 are evenly spaced along the length direction of the inner walls of the plate frame 1. One side of the buffer block 14 abuts against the plate beam 3 to play a buffering role. When the car passes the dynamic weighing device, the partition plate 31 is pressed down, and the plate beam 3 inclined at the center of the plate frame 1 gives the partition plate 31 a horizontal pressure distribution, which causes the plate beams 3 at both ends of the partition plate 31 to have a deformation tendency. The buffer block 14 plays a protective role during the pressure process and maintains the structural stability of the plate beam 3 through deformation. In addition to the buffer block 14, in this embodiment, a support plate 4 is arranged between the two plate beams 3 distributed at the center of the plate frame 1. The support plate 4 is arranged vertically and a plurality of the support plates 4 are evenly spaced along the length direction of the plate frame 1. The edges of the two sides of the plurality of vertically arranged support plates 4 are adapted to and abut against the opposite side edges of the plate beams 3. The plate surface structure is used to support the plate beam 3 and maintain the spacing between the plate beams 3 on both sides of the plate frame 1.

[0041] The implementation principle of a dynamic weighing device for road-going vehicles in an embodiment of the present application is as follows: a technician installs the dynamic weighing device on the road surface so that the pressure plate 12 and the detection plate 13 are flush with the road surface. When the vehicle passes over the pressure plate 12, the tires on both sides of the vehicle press down the detection plates 13 on both sides of the pressure plate 12 frame 1 respectively, and the detection plate 13 transmits the pressure to the strain gauge, and the piezoelectric sensor generates an electrical signal to measure the weight of the vehicle.

[0042] When the staff learns that the current traffic flow is mainly large vehicles or small vehicles, the positions of the strain force sensors 2 on both sides can be adjusted through the electric system. The electric slide 33 of the first pusher is used to adjust the spacing between the strain force sensors 2 on the same side of the dynamic weighing device to adapt to the wheelbase of the front and rear axles of the car. The electric slide 33 of the second pusher is used to adjust the spacing between the strain force sensors 2 on different sides of the dynamic weighing device to adapt to the wheelbase of the wheels on different sides of the car.

[0043] It should be noted that in some special measurement situations, it is necessary to widen the pressure detection length in the length direction of the plate frame 1. A strain force sensor 2 can be fixedly connected to the back side of one of the mounting plates 32 of the grid compartment by bolts as an expansion component. The expansion component can be formed by opening a groove on the mounting plate 32 between the two strain force sensors 2 to combine the two strain force sensors 2 into a whole, so that the expansion component can slide synchronously with the original strain force sensor 2 and change its position. It is also possible to fix the strain force sensor 2 on the mounting plate 32 and only adjust the position of the plate frame 1 in the length direction along with the mounting plate 32.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A dynamic weighing device for a road-going vehicle, comprising a plate frame (1), wherein a plurality of plate beams (3) are arranged inside the plate frame (1), and a strain force sensor (2) is arranged between the plate beams (3) and the inner side wall of the plate frame (1) and connected to the plate beams (3), characterized in that: Also includes: A partition plate (31) is vertically arranged between the plate beam (3) and the inner side wall of the plate frame (1), and a plurality of partition plates are evenly spaced and distributed along the length direction of the plate beam (3), and the length direction of the partition plate (31) is perpendicular to the length direction of the plate beam (3); A mounting plate (32) is vertically arranged and slidably connected between the plate beam (3) and two adjacent partition plates (31); the mounting plate (32) is parallel to the partition plates (31) and is used to fix the strain force sensor (2); A first sliding member, arranged between adjacent plate beams (3), connected to the mounting plate (32), and driving the mounting plate (32) to slide along the length direction of the plate beam (3); The second sliding member is arranged on one side of the strain force sensor (2), connected to the mounting plate (32), and drives the strain force sensor (2) to slide along a length direction perpendicular to the plate beam (3).

2. A dynamic weighing device for a road-going vehicle according to claim 1, characterized in that: The first sliding member comprises: A slide rail, the length direction of which is parallel to the length direction of the plate beam (3), and is horizontally arranged between two adjacent partition plates (31); An electric slide (33) is slidably connected to the slide rail and connected to the mounting plate (32) to drive the mounting plate (32) to slide.

3. A dynamic weighing device for a road-going vehicle according to claim 2, characterized in that: The bottom edge of the mounting plate (32) is provided with a groove structure adapted to fit the plate beam (3); The plate beam (3) connected to the mounting plate (32) is arranged at an angle.

4. A dynamic weighing device for a road-going vehicle according to claim 1, characterized in that: The second sliding member comprises: An intermediate plate (34) with a plate surface arranged vertically and arranged on one side of the mounting plate (32); The electric push rod (35) is arranged horizontally, and the cylinder body is fixedly connected to the surface of the middle plate (34). The end of the piston rod of the electric push rod (35) is connected to the strain force sensor (2).

5. A dynamic weighing device for a road-going vehicle according to claim 1, characterized in that: Also includes; A pressure plate (12) is arranged on the top of the plate frame (1), and a detection plate (13) is arranged on the pressure plate (12) corresponding to the strain force sensor (2). The surface of the detection plate (13) is flush with the surface of the pressure plate (12), and the bottom surface of the detection plate (13) abuts against the top of the strain force sensor (2).

6. A dynamic weighing device for a road-going vehicle according to claim 1, characterized in that: A wire groove is horizontally provided at the center of the plate beam (3); and a wire threading tube (36) is provided at the bottom of each partition plate (31).

7. A dynamic weighing device for a road-going vehicle according to claim 1, characterized in that: The top side edges of the plurality of plate beams (3) are bent toward the direction close to the central part of the plate frame (1), and the height of the top side edges of the plate beams (3) is higher than the height of the mounting plate (32).

8. A dynamic weighing device for a road-going vehicle according to claim 1, characterized in that: Also includes: A support plate (4) is arranged at the central part of the plate frame (1), and two opposite side edges of the support plate (4) are connected to two adjacent plate beams (3); A buffer block (14) is arranged on the inner wall of the plate frame (1) and abuts against the plate beam (3).

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