Weighing device for road vehicle

Abstract

The utility model relates to the technical field of vehicle weighing, and discloses a weighing device for road vehicles, which comprises a fixed plate, the left and right sides of the fixed plate are movably connected with movable plates, and the fixed plate is internally provided with a moving assembly for adjusting the transverse position of the movable plate. The inner walls of the front end and the rear end of the movable plate are fixedly sleeved with sleeve rods. According to the utility model, through cooperation among the adjusting assembly, the extension plate, the double-shaft stepping motor and the electronic weighing platforms, the problem that the adjusting lengths of the hollow plates at the front side and the rear side are not consistent in the disclosed technical content is effectively solved, and a mode that the double-shaft stepping motor drives the electronic weighing platforms at the front side and the rear side to move simultaneously through the adjusting assembly is adopted; the use of the adjusting assembly replaces the use of an adjusting bolt by a worker in the disclosed technical content, thereby not only reducing the workload of the worker, but also simplifying the steps of adjusting the length of the electronic weighing platforms at the front and rear sides.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle weighing, in particular to a weighing device for road vehicles. Background Art

[0002] The vehicle weighing device is used to detect the weight of vehicles passing through the platform. It is used in the application sites of transportation weighing industries such as cement, building materials, logistics, and chemicals to calculate the weight of the vehicle and perform overweight detection.

[0003] However, the sensor module used in the existing weighing device is fixedly installed in the platform frame. Due to the different sizes of vehicles, the wheel spacing is also different. At this time, the sensor module fixedly installed on the platform makes the weighing device only applicable to vehicles of fixed size. Therefore, in order to expand the applicability of the weighing device, some technologies have proposed related weighing structures to assist in vehicle weighing. For example, there is a utility model patent with publication number CN218916506U, which proposes a freely adjustable vehicle weighing platform. The platform is activated by a hydraulic cylinder to change the distance between the second weighing platform assembly and the first weighing platform assembly to adapt to the detection of vehicles with different wheel spacings. At the same time, by increasing the length of the first weighing platform assembly and the second weighing platform assembly, it can also be adjusted for vehicles of different lengths.

[0004] From the above disclosed technical content, theoretically speaking, the implementation of the relevant technical structure is conducive to the weighing of the vehicle by the weighing device, but according to the description in the above disclosed technical content, by adjusting the bolts to connect the extension plate and the hollow plate, in order to achieve the length of the first weighing platform assembly and the second weighing platform assembly, at this time, the staff needs to move the hollow plates on the front and rear sides respectively. Due to the manual method of moving the hollow plates, it is very easy to cause inconsistency in the moving positions of the hollow plates on the front and rear sides, which will not only increase the workload of the staff in adjusting the length of the first weighing platform assembly and the second weighing platform assembly, but also affect the accuracy of the first weighing platform assembly and the second weighing platform assembly in weighing the vehicle due to the different adjustments of the hollow plates on the front and rear sides. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the present invention provides a weighing device for road vehicles, which has the advantages of being able to adjust the weighing device according to the actual size of the vehicle, improving the accuracy of vehicle weighing, and expanding the scope of application of the weighing device, thereby solving the problems raised in the above-mentioned background technology.

[0006] The utility model provides the following technical solutions: a weighing device for road vehicles, comprising a fixed plate, wherein the left and right sides of the fixed plate are movably connected with movable plates, a moving component for adjusting the lateral position of the movable plate is arranged inside the fixed plate, the inner walls of the front and rear ends of the movable plate are fixedly sleeved with sleeve rods, the inner wall of the sleeve rod away from the end of the movable plate is movably sleeved with an extension plate, the left and right sides of the extension plate are fixedly installed with convex strips, and the end of the convex strip away from the extension plate is movably engaged with the inner wall of the sleeve rod, an adjusting component for adjusting the telescopic length of the extension plate is arranged inside the sleeve rod, an electronic weighing platform located outside the sleeve rod is fixedly installed on the outer end of the extension plate, an inclined plate is fixedly installed on the outer side of the electronic weighing platform, and columns are fixedly installed on the outer sides of the electronic weighing platform and the movable plate.

[0007] Preferably, the adjustment assembly is composed of a ball nut, a ball screw and a short rod, the inner wall of the ball nut is threadedly connected to the outer wall of the ball screw, the outer wall of the ball nut is fixedly connected to the inner end of the short rod, the outer end of the short rod is fixedly connected to the inner wall of the extension plate, the inner end of the ball screw is fixedly installed with a dual-axis stepper motor located inside the movable plate, and a No. 2 reducer is provided on the output shaft of the dual-axis stepper motor, and the lower end of the dual-axis stepper motor is fixedly connected to the bottom surface of the inner wall of the movable plate.

[0008] Preferably, a warning light is fixedly mounted on the upper end of the column, and reflective strips are evenly distributed on the outer wall of the column.

[0009] Preferably, limiting grooves are provided on both the left and right sides of the fixed plate, mounting plates are fixedly installed on the front and back sides of the fixed plate, fastening bolts are threadedly sleeved on the inner walls of the mounting plates, grooves for the outside of the movable component are provided on the front and back sides of the inner wall of the fixed plate, a limiting rod is movably sleeved on the inner wall of the limiting groove, and the outer end of the limiting rod is fixedly connected to the inner side of the movable plate.

[0010] Preferably, the movable assembly includes a spur gear, a No. 1 ruler bar and a No. 2 ruler bar, the back of the spur gear is meshed with the front teeth of the No. 1 ruler bar, the front of the spur gear is meshed with the back teeth of the No. 2 ruler bar, the right end of the No. 1 ruler bar is fixedly connected to the outer wall of the movable plate on the right, and the left end of the No. 2 ruler bar is fixedly connected to the outer wall of the movable plate on the left.

[0011] Preferably, the inner wall of the spur gear is fixedly sleeved with a rotating shaft, and the upper and lower ends of the rotating shaft are movably sleeved with the upper and lower sides of the fixed plate, the upper end of the spur gear is fixedly mounted with a rotating motor located above the fixed plate, and a No. 1 reducer is provided on the output shaft of the rotating motor, the outer wall of the rotating motor is fixedly sleeved with a chassis, and the lower end of the chassis is fixedly connected to the upper end surface of the fixed plate, the outer walls of the No. 1 and No. 2 ruler bars are fixedly mounted with brackets, the inner wall of the bracket is evenly distributed with rollers, and the outer walls of the rollers are rollingly connected to the inner walls of the grooves.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The utility model effectively solves the problem of inconsistent adjustment lengths of the front and rear hollow plates in the above-mentioned disclosed technical content through the cooperation between the adjustment component, the extension plate, the dual-axis stepping motor and the electronic weighing platform. The dual-axis motor not only drives the front and rear electronic weighing platforms to move simultaneously through the adjustment component, but also the use of the adjustment component replaces the use of the adjustment bolts by the staff in the above-mentioned disclosed technical content, which not only reduces the workload of the staff, but also simplifies the adjustment steps of the front and rear electronic weighing platforms.

[0014] 2. The utility model realizes the protection of vehicles during weighing by coordinating the electronic weighing platform, upright posts, warning lights and reflective strips, and utilizing the settings of warning lights and reflective strips, and effectively solves the problem of position deviation of vehicles from the electronic weighing platform. The upright posts are used to limit the position of the vehicles on the electronic weighing platform, thereby preventing the vehicles from falling from the electronic weighing platform, thereby protecting the vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a top view of the rotating electrical machine of the present invention;

[0017] Figure 3 It is a top view of the movable plate of the utility model;

[0018] Figure 4 It is a cross-sectional view of the extension plate of the utility model;

[0019] Figure 5 For this utility model Figure 4 A magnified view of point A;

[0020] Figure 6 It is a top view of the inclined plate of the utility model;

[0021] Figure 7 It is a side view of the mobile assembly of the utility model;

[0022] Figure 8 This is a top view of the mounting plate of the utility model;

[0023] Figure 9 This is a schematic diagram of the structure of the utility model.

[0024] In the figure: 1. Fixed plate; 2. Movable plate; 3. Moving assembly; 301. Spur gear; 302. Ruler bar No. 1; 303. Ruler bar No. 2; 4. Sleeve rod; 5. Extension plate; 6. Adjustment assembly; 601. Ball nut; 602. Ball screw; 603. Short rod; 7. Electronic weighing platform; 8. Column; 9. Limit groove; 10. Mounting plate; 11. Groove; 12. Limit rod; 13. Bracket; 14. Roller; 15. Rotating shaft; 16. Rotating motor; 17. Chassis; 18. Raised strip; 19. Inclined plate; 20. Warning light; 21. Reflective strip; 22. Fastening bolt; 23. Dual-axis stepper motor. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1 、 Figure 3 and Figure 5A weighing device for road vehicles includes a fixed plate 1, and a movable plate 2 is movably connected to the left and right sides of the fixed plate 1. The movable connection method allows the spacing between the movable plates 2 on the left and right sides to be adjusted according to the spacing between the left and right wheels of the vehicle. A moving component 3 for adjusting the lateral position of the movable plate 2 is provided inside the fixed plate 1. The setting of the moving component 3 provides power for the movement of the movable plate 2. The inner walls of the front and rear ends of the movable plate 2 are fixedly sleeved with a sleeve rod 4. The installation of the sleeve rod 4 provides space for the movement of an extension plate 5. The sleeve rod 4 is movably sleeved with an extension plate 5 on the inner wall away from one end of the movable plate 2. The movable sleeve connection method allows the front and rear extension plates 5 to drive the front and rear extension plates 5 to move. The spacing of the electronic weighing platform 7 can be adjusted according to the spacing between the front and rear wheels of the vehicle. The left and right sides of the extension plate 5 are fixedly installed with convex strips 18, and the end of the convex strip 18 away from the extension plate 5 is movably engaged with the inner wall of the sleeve rod 4. The interior of the sleeve rod 4 is provided with an adjustment component 6 for adjusting the telescopic length of the extension plate 5. The installation of the adjustment component 6 provides power for the movement of the extension plate 5. The outer end of the extension plate 5 is fixedly installed with an electronic weighing platform 7 located outside the sleeve rod 4, and the outer side of the electronic weighing platform 7 is fixedly installed with an inclined plate 19. The outer sides of the electronic weighing platform 7 and the movable plate 2 are fixedly installed with columns 8. The setting of the column 8 limits the position of the vehicle on the weighing device to prevent the vehicle from falling from the weighing device.

[0027] The adjusting assembly 6 is composed of a ball nut 601, a ball screw 602 and a short rod 603. The inner wall of the ball nut 601 is threadedly sleeved with the outer wall of the ball screw 602. The threaded sleeve connection method enables the circumferential rotation of the ball screw 602 to drive the horizontal movement of the ball nut 601. The outer wall of the ball nut 601 is fixedly connected to the inner end of the short rod 603. The installation of the short rod 603 serves to connect the ball nut 601 with the extension plate 5. The outer end of the short rod 603 is fixedly connected to the inner wall of the extension plate 5. The inner end of the ball screw 602 is fixedly installed with a dual-axis stepper motor 23 located inside the movable plate 2, and a second reducer is provided on the output shaft of the dual-axis stepper motor 23. The dual-axis stepper motor 23 is configured to provide power for the movement of the adjusting assembly 6 on the front and rear sides, and the lower end of the dual-axis stepper motor 23 is fixedly connected to the bottom surface of the inner wall of the movable plate 2.

[0028] See also Figure 2 、 Figure 8 and Figure 9 A warning light 20 is fixedly mounted on the upper end of the column 8, and reflective strips 21 are evenly distributed on the outer wall of the column 8. Both the warning light 20 and the reflective strips 21 serve as a warning to the vehicle.

[0029] Limiting grooves 9 are provided on both sides of the left and right sides of the fixed plate 1. The limiting grooves 9 provide space for the movement of the limiting rod 12. The front and back sides of the fixed plate 1 are fixedly installed with mounting plates 10. The inner wall of the mounting plate 10 is threaded with a fastening bolt 22. The setting of the fastening bolt 22 enables the mounting plate 10 to be fixed to the ground. Grooves 11 on the outside of the movable component 3 are provided on the front and back sides of the inner wall of the fixed plate 1. The inner wall of the limiting groove 9 is movably connected to the limiting rod 12, and the outer end of the limiting rod 12 is fixedly connected to the inner side of the movable plate 2.

[0030] See also Figure 4 、 Figure 6 and Figure 7 The moving component 3 includes a spur gear 301, a No. 1 ruler bar 302 and a No. 2 ruler bar 303. The back of the spur gear 301 is meshed with the front teeth of the No. 1 ruler bar 302. The tooth meshing connection mode enables the circumferential rotation of the spur gear 301 to drive the horizontal movement of the No. 1 ruler bar 302 and the No. 2 ruler bar 303. The front of the spur gear 301 is meshed with the back teeth of the No. 2 ruler bar 303. The right end of the No. 1 ruler bar 302 is fixedly connected to the outer wall of the movable plate 2 on the right, and the left end of the No. 2 ruler bar 303 is fixedly connected to the outer wall of the movable plate 2 on the left. The movement of the No. 2 ruler bar 303 and the No. 1 ruler bar 302 provides power for the movement of the movable plates 2 on the left and right sides.

[0031] The inner wall of the spur gear 301 is fixedly sleeved with a rotating shaft 15, and the upper and lower ends of the rotating shaft 15 are movably sleeved with the upper and lower sides of the fixed plate 1. The installation of the rotating shaft 15 serves to connect the spur gear 301 with the rotating motor 16. The upper end of the spur gear 301 is fixedly installed with the rotating motor 16 located above the fixed plate 1, and a No. 1 reducer is provided on the output shaft of the rotating motor 16. The outer wall of the rotating motor 16 is fixedly sleeved with a chassis 17, and the lower end of the chassis 17 is fixedly connected to the upper end surface of the fixed plate 1. The chassis 17 is located below the vehicle floor. Due to a certain distance between the wheel and the floor, the chassis 17 will not hinder the movement of the vehicle on the weighing device. The outer walls of the No. 1 ruler bar 302 and the No. 2 ruler bar 303 are fixedly installed with brackets 13. The inner wall of the bracket 13 is evenly distributed with rollers 14, and the outer wall of the roller 14 is rollingly connected to the inner wall of the groove 11.

[0032] Working principle: When in use, first, adjust the spacing of the movable plates 2 on the left and right sides according to the width of the left and right wheels of the vehicle, turn on the power of the rotating motor 16, and after the rotating motor 16 is turned on, it drives the rotation of the spur gear 301 through the connection of the rotating shaft 15. Since the front and rear sides of the spur gear 301 are respectively engaged with the teeth of the second ruler bar 303 and the first ruler bar 302, the spur gear 301 rotates in a circle while driving the horizontal movement of the first ruler bar 302 and the first ruler bar 302. The movement of the first ruler bar 302 and the second ruler bar 303 respectively drives the right and left movable plates 2 to move toward the outside or inside of the fixed plate 1 at the same time, until the spacing of the left and right movable plates 2 is adjusted to suit the spacing of the left and right wheels of the vehicle. Then, the power of the rotating motor 16 can be turned off, and then the front and rear tires are adjusted according to the spacing of the front and rear tires of the vehicle. The distance between the electronic weighing platforms 7 on both sides is adjusted, and the power supply of the dual-axis stepper motor 23 is turned on. After the dual-axis stepper motor 23 is turned on, it drives the rotation of the ball screws 602 on the front and rear sides. Due to the threaded connection between the ball screw 602 and the ball nut 601, the ball screw 602 rotates in a circle and drives the ball nut 601 to move horizontally. When the ball nut 601 moves, the extension plate 5 is driven to telescopically move inside the sleeve rod 4 through the connection of the short rod 603. When the sleeve rod 4 moves, it drives the electronic weighing platform 7 to move in the same direction. Until the distance between the front and rear electronic weighing platforms 7 is adjusted to the distance between the front and rear wheels of the vehicle, the power supply of the dual-axis stepper motor 23 can be turned off. Finally, the vehicle drives onto the weighing device from the inclined plate 19 to be weighed. At this time, the pillars 8 on the left and right sides protect the vehicle and limit the vehicle's driving position on the weighing device.

[0033] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. At the same time, in the drawings of the present utility model, fill patterns are only used to distinguish layers and do not make any other limitations.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A weighing device for a road vehicle, comprising a fixing plate (1), characterized in that: The left and right sides of the fixed plate (1) are movably connected to the movable plate (2); a moving assembly (3) for adjusting the lateral position of the movable plate (2) is provided inside the fixed plate (1); the inner walls of the front and rear ends of the movable plate (2) are fixedly sleeved with sleeve rods (4); the inner wall of the sleeve rod (4) away from the movable plate (2) is movably sleeved with an extension plate (5); the left and right sides of the extension plate (5) are fixedly installed with convex strips (18), and the end of the convex strip (18) away from the extension plate (5) is movably engaged with the inner wall of the sleeve rod (4); an adjusting assembly (6) for adjusting the telescopic length of the extension plate (5) is provided inside the sleeve rod (4); the outer end of the extension plate (5) is fixedly installed with an electronic weighing platform (7) located outside the sleeve rod (4); the outer side of the electronic weighing platform (7) is fixedly installed with an inclined plate (19); and the outer sides of the electronic weighing platform (7) and the movable plate (2) are fixedly installed with columns (8).

2. A road vehicle weighing device according to claim 1, characterized in that: The adjustment assembly (6) is composed of a ball nut (601), a ball screw (602) and a short rod (603). The inner wall of the ball nut (601) is threadedly sleeved with the outer wall of the ball screw (602). The outer wall of the ball nut (601) is fixedly connected to the inner end of the short rod (603). The outer end of the short rod (603) is fixedly connected to the inner wall of the extension plate (5). The inner end of the ball screw (602) is fixedly mounted with a dual-axis stepper motor (23) located inside the movable plate (2), and a second reducer is provided on the output shaft of the dual-axis stepper motor (23). The lower end of the dual-axis stepper motor (23) is fixedly connected to the bottom surface of the inner wall of the movable plate (2).

3. A road vehicle weighing device according to claim 1, characterized in that: A warning light (20) is fixedly mounted on the upper end of the column (8), and reflective strips (21) are evenly distributed on the outer wall of the column (8).

4. A road vehicle weighing device according to claim 1, characterized in that: The fixed plate (1) is provided with limiting grooves (9) on both the left and right sides, and the fixing plate (1) is fixedly mounted with mounting plates (10) on the front and back sides, and the inner wall of the mounting plate (10) is threadedly sleeved with fastening bolts (22), and the front and rear sides of the inner wall of the fixed plate (1) are provided with grooves (11) for the outside of the movable component (3), and the inner wall of the limiting groove (9) is movably sleeved with a limiting rod (12), and the outer end of the limiting rod (12) is fixedly connected to the inner side of the movable plate (2).

5. A road vehicle weighing device according to claim 4, characterized in that: The moving assembly (3) comprises a spur gear (301), a first ruler bar (302) and a second ruler bar (303); the back surface of the spur gear (301) meshes with the front tooth pattern of the first ruler bar (302); the front surface of the spur gear (301) meshes with the back tooth pattern of the second ruler bar (303); the right end of the first ruler bar (302) is fixedly connected to the outer wall of the right movable plate (2); and the left end of the second ruler bar (303) is fixedly connected to the outer wall of the left movable plate (2).

6. A road vehicle weighing device according to claim 5, characterized in that: The inner wall of the spur gear (301) is fixedly sleeved with a rotating shaft (15), and the upper and lower ends of the rotating shaft (15) are movably sleeved with the upper and lower sides of the fixed plate (1). The upper end of the spur gear (301) is fixedly mounted with a rotating motor (16) located above the fixed plate (1), and a No. 1 speed reducer is provided on the output shaft of the rotating motor (16). The outer wall of the rotating motor (16) is fixedly sleeved with a chassis (17), and the lower end of the chassis (17) is fixedly connected to the upper end surface of the fixed plate (1). The outer walls of the No. 1 ruler bar (302) and the No. 2 ruler bar (303) are fixedly mounted with a bracket (13), and the inner wall of the bracket (13) is evenly distributed with rollers (14), and the outer wall of the roller (14) is rollingly connected to the inner wall of the groove (11).

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