Wagon balance anti-floating device and wagon balance device
By installing pit limiting and weighbridge body limiting devices on the weighbridge, and using the limiting connecting shaft to restrict the weighbridge's floating, the problem of the weighbridge floating due to water accumulation is solved, ensuring weighing accuracy and equipment lifespan.
Patent Information
- Application Number
- CN202520949108.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-14
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-05-14
AI Technical Summary
During the rainy season, weighbridges may float due to water accumulation in the pit, affecting weighing accuracy and equipment lifespan.
A weighbridge anti-floating device was designed. By using a pit limiting device and a weighbridge body limiting device, the floating of the weighbridge is restricted by a limiting connecting shaft, ensuring that the weighbridge does not exceed the safe range under the action of buoyancy.
It effectively prevents the weighbridge from floating, maintains weighing accuracy, extends the service life of the equipment, and reduces the cost of modification.
Smart Images
Figure CN223940371U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of weighbridge technology, specifically to a weighbridge anti-floating device and a weighbridge device. Background Technology
[0002] A weighbridge is a static weighing device installed on the ground, typically consisting of a sturdy metal platform, sensors, and a weighing instrument. Once a vehicle drives onto the platform, the system converts the weight into an electrical signal via the sensors, ultimately displaying a precise weight value. Weighbridges are crucial weighing instruments at cargo terminal checkpoints in airports. However, during the rainy season, weighbridge systems at airport cargo terminal checkpoints experience frequent malfunctions. The lengthy troubleshooting and recalibration times prevent international cargo vehicles from passing through inspection and being loaded onto flights, severely impacting normal cargo operations. Investigations into the causes of these malfunctions revealed that the low-lying location of airport checkpoints makes them susceptible to water accumulation in the weighbridge pit during thunderstorms. This causes the weighbridge to float above its normal baseline, leading to malfunctions. Summary of the Invention
[0003] Therefore, the technical problem to be solved by this utility model is to overcome the defects in the prior art, thereby providing a weighbridge anti-floating device to prevent the weighbridge from floating beyond the normal baseline.
[0004] A weighbridge anti-floating device includes: a pit fixing device, a pit limiting device, and a weighbridge body limiting device; the pit limiting device is fixed on the pit fixing device; the weighbridge body limiting device is fixed on the weighbridge body; the pit limiting device is provided with a pit limiting hole, and the weighbridge body limiting device is provided with a weighbridge body limiting hole, the pit limiting hole and the weighbridge body limiting hole are coaxial, and the diameter of the weighbridge body limiting hole is larger than the diameter of the pit limiting hole, and a limiting connecting shaft is inserted into the pit limiting hole and the weighbridge body limiting hole.
[0005] Furthermore, the limiting connecting shaft includes a first shaft at the front end and a second shaft connected to the first shaft. The diameter of the first shaft is smaller than the diameter of the second shaft. The second shaft is matched with the limiting hole of the foundation pit. The diameter of the first shaft is smaller than the diameter of the limiting hole of the weighing body.
[0006] Furthermore, the pit limiting device includes a pit limiting base plate and two pit limiting side plates. The two pit limiting side plates are fixedly connected to both ends of the pit limiting base plate. The pit limiting base plate is fixed to the bottom of the pit side channel, and the pit limiting side plates are fixed to the side walls of the pit side channel. The pit side channel communicates with the pit and is used to install the weighbridge anti-floating device and weighbridge sensors, as well as for the maintenance of related components of the weighbridge.
[0007] Furthermore, the foundation pit limiting device includes a foundation pit limiting base, a pair of vertical plates, and a foundation pit limiting sleeve. The pair of vertical plates are provided with mounting holes and welded to the foundation pit limiting base, and the foundation pit limiting sleeve is installed in the mounting holes.
[0008] Furthermore, the weighing body limiting device includes a weighing body limiting base, a pair of perforated weighing body limiting plates, and a weighing body limiting sleeve. The pair of weighing body limiting plates are provided with limiting holes and welded to the weighing body limiting base, and the weighing body limiting sleeve is installed in the limiting holes.
[0009] Furthermore, the weighing body limiting base is vertically fixed on the weighing body.
[0010] A weighbridge device includes a weighbridge assembly, which includes any of the aforementioned weighbridge anti-floating devices. The weighbridge assembly also includes a weighbridge cover plate, multiple parallel U-shaped beams, a horizontal plate connected to and perpendicular to the U-shaped beams, and a weighbridge sensor. The weighbridge sensor and the weighbridge anti-floating device are located below the four corners of the weighbridge cover plate, and the upper part of the weighbridge sensor abuts against the horizontal plate.
[0011] Furthermore, the weighbridge device comprises multiple weighbridge components assembled in series. Two horizontal plates of two weighbridge components are connected together by bolts. At the connection point of the two weighbridge components, the weighbridge sensor is located below the two horizontal plates.
[0012] Furthermore, the outer U-shaped beam of the weighbridge assembly is shorter at both ends than the inner U-shaped beam. The ends of the outer U-shaped beam are sealed with anti-floating device fixing plates, and the anti-floating device fixing plates are fixedly connected to the inner U-shaped beam. The anti-floating device is fixed to the anti-floating device fixing plate with bolts.
[0013] Working Principle: During use, the limiting connecting shaft is inserted into the pit limiting hole and the weighbridge limiting hole. The diameter of the first shaft is smaller than the diameter of the second shaft, which aligns with the pit limiting hole. The diameter of the first shaft is smaller than the diameter of the weighbridge limiting hole, leaving a 2-5 cm gap between the outer surface of the first shaft and the inner surface of the weighbridge limiting hole. Under normal use, the slight displacement caused by the weighbridge's deformation during weighing will not cause the outer surface of the first shaft to contact the weighbridge limiting hole, thus not affecting weighing. When water accumulates in the pit, the weighbridge assembly will shift upwards under buoyancy. When the displacement distance exceeds the gap between the outer surface of the first shaft and the inner surface of the weighbridge limiting hole, the outer surface of the first shaft will contact the inner surface of the weighbridge limiting hole, preventing the weighbridge assembly from moving further upwards and thus protecting the weighbridge device.
[0014] The technical solution of this utility model has the following advantages:
[0015] The weighbridge anti-floating device of this utility model has a simple structure, low cost, and is easy to modify. It can limit the floating distance of the weighbridge to a safe range, thereby improving the service life of the weighbridge. Attached Figure Description
[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0017] Figure 1 This is a three-dimensional structural diagram of the anti-floating device for the weighbridge in Example 1;
[0018] Figure 2 for Figure 1 A three-dimensional structural diagram of the foundation pit limiting device;
[0019] Figure 3 for Figure 1 The diagram shows the three-dimensional structure of the pit limiting device and the weighing body limiting device relative to their positions.
[0020] Figure 4 for Figure 3 A three-dimensional structural diagram of the pit limiting device removed;
[0021] Figure 5 for Figure 1 A schematic diagram of the three-dimensional structure of the limiting connection shaft in the middle;
[0022] Figure 6 for Figure 1 A top-view structural diagram of the foundation pit;
[0023] Figure 7 This is a schematic diagram of the three-dimensional structure of the weighbridge in Example 2.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1-Foundation pit fixing device; 2-Foundation pit limiting device; 3-Weighbridge body limiting device; 4-Weighbridge body; 5-Foundation pit; 6-Weighbridge sensor; 21-Foundation pit limiting hole; 22-Limiting connecting shaft; 23-Foundation pit limiting base; 24-Vertical plate; 25-Foundation pit limiting sleeve; 31-Weighbridge body limiting base; 32-Weighbridge body limiting plate; 33-Weighbridge body limiting sleeve; 41-Weighbridge cover plate; 42-U-shaped beam; 43-Horizontal plate; 44-Anti-floating device fixing plate; 51-Foundation pit side trench. Detailed Implementation
[0026] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0027] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0028] Example 1
[0029] like Figure 1-6 A weighbridge anti-floating device includes: a pit fixing device 1, a pit limiting device 2, and a weighbridge body limiting device 3. The pit limiting device 2 is fixed to the pit fixing device 1, specifically by bolts, but can also be welded or integrally formed; the specific method is not limited. The weighbridge body limiting device 3 is fixed to the weighbridge body 4, specifically by bolts, but can also be welded or integrally formed; the specific method is not limited, and mature existing technology can be used. The pit limiting device 2 is provided with a pit limiting hole 21, and the weighbridge body limiting device 3 is provided with a weighbridge body limiting hole 31. The pit limiting hole 21 and the weighbridge body limiting hole 31 are coaxial and close to each other, which facilitates the installation of the limiting connecting shaft 22 and limits the floating displacement of the weighbridge body. The diameter of the weighbridge body limiting hole 31 is larger than the diameter of the pit limiting hole 21, and the limiting connecting shaft 22 is inserted into the pit limiting hole 21 and the weighbridge body limiting hole 31.
[0030] Furthermore, the limiting connecting shaft 22 includes a first shaft 221 at the front end and a second shaft 222 connected to the first shaft 221. A base can be provided at the end of the second shaft 222 to facilitate the installation and positioning of the limiting connecting shaft 22. When the limiting connecting shaft 22 is inserted into the pit limiting hole 21 and the weighing body limiting hole 31, the first shaft 221 is located in the weighing body limiting device 3, and the second shaft 222 is located in the pit limiting device 2. The diameter of the first shaft 221 is smaller than the diameter of the second shaft 222, and the second shaft 222 is smaller than the diameter of the weighing body limiting hole 31. During normal weighing of a vehicle, the first shaft 221 does not contact the weighing body limiting hole 31; the gap between them can be 2cm, 3cm, 4cm, or 5cm, depending on actual needs.
[0031] Furthermore, the weighbridge assembly is installed in the pit 5. The pit limiting device 1 includes a pit limiting base plate 11 and two pit limiting side plates 12. The two pit limiting side plates 12 are fixedly connected to both ends of the pit limiting base plate 11, specifically by bolts, welding, or integral molding. No specific limitation is imposed, and mature existing technology can be used.
[0032] The pit limiting base plate 11 is fixed to the bottom of the pit side channel 51, and the pit limiting side plate 12 is fixed to the side wall of the pit side channel 51. It can be fixed with bolts or other methods; existing technology is acceptable and not limited here. The pit side channel 51 is connected to the pit 5 and is used to install the weighbridge anti-floating device and the weighbridge sensor 6, as well as for the maintenance of related components of the weighbridge.
[0033] Furthermore, the pit limiting device 2 includes a pit limiting base 23, a pair of vertical plates 24, and a pit limiting sleeve 25. The pair of vertical plates 24 are provided with mounting holes and are welded to the pit limiting base 23. The pit limiting sleeve 25 is installed in the mounting holes. Furthermore, the pit limiting sleeve 25 is provided with pin fixing holes, which are used to insert pins into the pin fixing holes when the limiting connecting shaft 22 is inserted, and cooperate with the holes on the limiting connecting shaft 22 to prevent the limiting connecting shaft 22 from falling off.
[0034] Furthermore, the weighing body limiting device 3 includes a weighing body limiting base 31, a pair of perforated weighing body limiting plates 32, and a weighing body limiting sleeve 33. The pair of weighing body limiting plates 32 are provided with limiting holes and welded to the weighing body limiting base 31, and the weighing body limiting sleeve 33 is installed in the limiting holes.
[0035] Furthermore, the weighing body limiting base 31 is vertically fixed on the weighing body.
[0036] Example 2
[0037] like Figure 7Based on Embodiment 1, a further improvement is made to a weighbridge device, including a weighbridge assembly. The weighbridge assembly includes the anti-floating device described in Embodiment 1. The weighbridge assembly also includes a weighbridge cover plate 41, multiple parallel U-shaped beams 42, a horizontal plate 43 connected to and perpendicular to the U-shaped beams 42, and weighbridge sensors 6. The weighbridge sensors 6 and the anti-floating device are located below the four corners of the weighbridge cover plate 41, with the upper part of the weighbridge sensors 6 abutting against the horizontal plate 43. The horizontal plate 43 is located on the multiple U-shaped beams 42, and the horizontal plate 43 and the U-shaped beams 42 form a weighbridge frame. The weighbridge sensors 6 can be fixed to the foundation pit or placed directly on the foundation pit. A metal ball is fixed to the weighbridge sensor 6 with a sleeve, and an upper fixing sleeve is provided above the metal ball, directly bearing the pressure transmitted by the horizontal plate 43. The weighbridge sensor 6 is equipped with an information data line connected to a controller.
[0038] Furthermore, the outer U-shaped beam 42 of the weighbridge assembly is shorter at both ends than the inner U-shaped beam 42. The ends of the outer U-shaped beam 42 are closed by an anti-floating device fixing plate 44, which is fixedly connected to the inner U-shaped beam 42. The anti-floating device fixing plate 44 extends outward from the outer U-shaped beam 42 to install and fix the anti-floating device. The anti-floating device is fixed to the anti-floating device fixing plate 44 by bolts.
[0039] Furthermore, the weighbridge device comprises multiple weighbridge components assembled in series. At the connection point, two horizontal plates 43 of two weighbridge components are connected together by bolts. At the connection point of two weighbridge components, a weighbridge sensor 6 is positioned below the two horizontal plates 43. The signals collected by the weighbridge sensor 6 are processed by the controller and displayed on the monitor.
[0040] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A weighbridge anti-floating device, characterized in that, include: The system includes a foundation pit fixing device, a foundation pit limiting device, and a weighbridge limiting device. The foundation pit limiting device is fixed to the foundation pit fixing device. The weighbridge limiting device is fixed to the weighbridge body. The foundation pit limiting device has a foundation pit limiting hole, and the weighbridge limiting device has a weighbridge limiting hole. The foundation pit limiting hole and the weighbridge limiting hole are coaxial, and the diameter of the weighbridge limiting hole is larger than the diameter of the foundation pit limiting hole. Limiting connecting shafts are inserted into the foundation pit limiting hole and the weighbridge limiting hole.
2. The weighbridge anti-floating device according to claim 1, characterized in that, The limiting connecting shaft includes a first shaft at the front end and a second shaft connected to the first shaft. The diameter of the first shaft is smaller than the diameter of the second shaft. The second shaft is matched with the limiting hole of the foundation pit. The diameter of the first shaft is smaller than the diameter of the limiting hole of the weighing body.
3. The weighbridge anti-floating device according to claim 1, characterized in that, The pit limiting device includes a pit limiting bottom plate and two pit limiting side plates. The two pit limiting side plates are fixedly connected to both ends of the pit limiting bottom plate. The pit limiting bottom plate is fixed to the bottom of the pit side trench, and the pit limiting side plates are fixed to the side wall of the pit side trench.
4. The weighbridge anti-floating device according to claim 1, characterized in that, The foundation pit limiting device includes a foundation pit limiting base, a pair of vertical plates, and a foundation pit limiting sleeve. The pair of vertical plates are provided with mounting holes and welded to the foundation pit limiting base, and the foundation pit limiting sleeve is installed in the mounting holes.
5. The weighbridge anti-floating device according to claim 1, characterized in that, The weighing body limiting device includes a weighing body limiting base, a pair of perforated weighing body limiting plates, and a weighing body limiting sleeve. The pair of weighing body limiting plates are provided with limiting holes and welded to the weighing body limiting base, and the weighing body limiting sleeve is installed in the limiting holes.
6. The weighbridge anti-floating device according to claim 1, characterized in that, The weighing scale's limiting base is vertically fixed to the weighing scale.
7. A weighbridge device, comprising weighbridge components, characterized in that, The weighbridge assembly includes a weighbridge anti-floating device as described in any one of claims 1-6, and further includes a weighbridge cover plate, multiple parallel U-shaped beams and a horizontal plate connected to and perpendicular to the U-shaped beams, and a weighbridge sensor. The weighbridge sensor and the weighbridge anti-floating device are located below the four corners of the weighbridge cover plate, and the upper part of the weighbridge sensor abuts against the horizontal plate.
8. The weighbridge device according to claim 7, characterized in that, The weighbridge device consists of multiple weighbridge components assembled in series. The two horizontal plates of two weighbridge components are connected together by bolts. At the connection point of the two weighbridge components, the weighbridge sensor is set below the two horizontal plates.
9. The weighbridge device according to claim 7, characterized in that, The outer U-shaped beam of the weighbridge assembly is shorter at both ends than the inner U-shaped beam. The ends of the outer U-shaped beam are closed with anti-floating device fixing plates, and the anti-floating device fixing plates are fixedly connected to the inner U-shaped beam. The anti-floating device is fixed to the anti-floating device fixing plate with bolts.