Vehicle position reminding device for a weighbridge
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENGZHOU JINHENG ELECTRONICS TECH CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-21
Smart Images

Figure CN224535214U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of weighbridges and relates to a vehicle position reminder device for weighbridges. Background Technology
[0002] A weighbridge is a weighing device, primarily used for weighing vehicle cargo. When weighing, the vehicle needs to be driven onto the weighbridge so that it is completely positioned above it. Weighbridges have a certain height, and are often installed by adding ramps at both ends or placing the weighbridge in a pit.
[0003] When weighing vehicles, especially at night or in bad weather or other conditions with poor visibility, it is difficult to determine the vehicle's position, which may cause the wheels to drive out of the weighbridge boundary, resulting in inaccurate weighing or even the risk of rollover. Utility Model Content
[0004] To address the aforementioned problems, this utility model proposes a vehicle location reminder device for weighbridges, which effectively solves the problems in the prior art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A vehicle position reminder device for a weighbridge includes a pressure wave switch. The pressure wave switch includes a sensing air tube, the end of which is connected to a conducting air tube. The conducting air tube is connected to a pressure sensor. The device also includes a limiting mounting groove respectively opened on the upper end of the weighbridge near both sides, and a positioning mounting groove perpendicular to the limiting mounting groove. Multiple pressure wave switches are provided. The sensing air tubes are respectively fixedly installed in the limiting mounting grooves and the positioning mounting grooves. The upper side of the sensing air tube protrudes from the weighbridge. The pressure sensor is electrically connected to an alarm component.
[0007] Optionally, two positioning mounting slots are provided, located near both ends of the weighbridge.
[0008] Optionally, the alarm component includes a buzzer installed at the location of the pressure wave switch.
[0009] Optionally, limit indicator lights are fixedly installed at both ends of the limit mounting groove, and the limit indicator lights are electrically connected to the pressure wave switch inside the limit mounting groove.
[0010] Optionally, positioning indicator lights are fixedly installed at both ends of the limiting mounting groove, and the positioning indicator lights are electrically connected to the pressure wave switch inside the positioning mounting groove.
[0011] Optionally, the sensing air tube includes an air tube section and a pressure-bearing rod, the pressure-bearing rod is placed above the air tube section, and the pressure-bearing rod is slidably connected to the limiting mounting groove and the positioning mounting groove.
[0012] Compared with the prior art, the present invention has the following advantages: by installing pressure wave switches at the upper end of the weighbridge near both sides and perpendicular to the vehicle's direction of entry, an alarm component will be used to remind the vehicle when the vehicle's tires exert downward pressure on the sensing air pipe, thereby reducing the possibility of the vehicle leaving the weighbridge's range. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;
[0014] Figure 2 yes Figure 1 An enlarged schematic diagram of part A in the middle.
[0015] Reference numerals: 1. Pressure wave switch; 11. Sensing air tube; 111. Air tube section; 112. Pressure-bearing rod; 113. Mounting bracket; 12. Conducting air tube; 13. Air pressure sensor; 2. Limit mounting slot; 3. Positioning mounting slot; 4. Alarm assembly; 41. Limit indicator light; 42. Positioning indicator light. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] Please see Figure 1 and Figure 2 This utility model discloses a vehicle position reminder device for a weighbridge, comprising a pressure wave switch 1, a sensing air tube 11, a conducting air tube 12 connected to the end of the sensing air tube 11, a pressure sensor 13 connected to the conducting air tube 12, a limiting mounting groove 2 respectively opened at the upper end of the weighbridge near both sides, and a positioning mounting groove 3 set perpendicular to the limiting mounting groove 2. Multiple pressure wave switches 1 are provided, and the sensing air tubes 11 are respectively fixedly installed in the limiting mounting grooves 2 and the positioning mounting grooves 3. The upper side of the sensing air tube 11 protrudes from the weighbridge, and the pressure sensor 13 is electrically connected to an alarm component 4.
[0018] Specifically, by setting up the sensing air pipe 11, when the vehicle drives into the upper part of the weighbridge, the wheels exert pressure on the sensing air pipe 11. The deformation of the sensing air pipe 11 causes a change in gas pressure, which is transmitted to the air pressure sensor 13 through the conduction air pipe 12, causing the air pressure sensor 13 to send a signal and trigger the alarm component 4.
[0019] In this way, by installing pressure wave switches 1 at the upper end of the weighbridge near both sides and perpendicular to the direction of vehicle entry, an alarm component 4 will provide a reminder when the vehicle's tires exert downward pressure on the sensing air pipe 11, thereby reducing the possibility of the vehicle leaving the weighbridge range.
[0020] In some feasible methods, the pressure wave switch 1 is existing technology and is commonly used in the position of barrier gates in residential areas and parking lots. To facilitate understanding of this application, the existing pressure wave switch 1 is explained as follows: the sensing air tube 11 is a closed circular tube made of rubber, the conducting air tube 12 is an air tube, and the air pressure sensor 13 is connected to the sensing air tube 11 through the conducting air tube 12. When the sensing air tube 11 is pressurized, the gas is compressed, and the air pressure increases. After the air pressure sensor 13 senses the change in air pressure, it triggers the corresponding actuator to act through the signal line.
[0021] The limiting mounting groove 2 and the positioning mounting groove 3 are rectangular grooves set on the surface of the weighbridge. The sensing air pipe 11 is installed in the groove and protrudes from the weighbridge to facilitate deformation. The limiting mounting groove 2 is set at the upper end of the weighbridge near the sides to prevent vehicles from getting too close to the sides. The positioning mounting groove 3 is set perpendicular to the limiting mounting groove 2 so that the driver can judge the number of tires passing through the positioning mounting groove 3 by the number of alarms of the alarm component 4, and thus judge the position of the vehicle on the weighbridge.
[0022] As one specific embodiment of a vehicle position reminder device for a weighbridge provided in the application, there are two positioning mounting slots 3, which are located near both ends of the weighbridge.
[0023] Overall, by setting two positioning mounting slots 3, the stopping position of vehicles entering and exiting is reminded, which facilitates better weighing.
[0024] In use, the positioning mounting slots 3 are set at both ends of the weighbridge. When the vehicle's last wheel triggers the pressure wave switch 1 at the inlet end, the vehicle enters the weighing position. When the vehicle's front wheel triggers the pressure wave switch 1 at the outlet end, the vehicle is at its final stop position. If it exceeds this position, it should retreat a certain distance for weighing. The inlet and outlet ends are determined by the vehicle's direction of travel.
[0025] Furthermore, the alarm component 4 includes a buzzer installed at the location of the pressure wave switch 1.
[0026] It should be understood that by setting up multiple buzzers, the driver can determine the vehicle's position by the sound location.
[0027] Furthermore, limit indicator lights 41 are fixedly installed at both ends of the limit mounting groove 2, and the limit indicator lights 41 are electrically connected to the pressure wave switch 1 inside the limit mounting groove 2.
[0028] It should be understood that after the pressure wave switch 1 senses the feedback signal, it illuminates the limit indicator light 41, allowing the driver to judge whether the vehicle has deviated from its course in noisy conditions.
[0029] Furthermore, positioning indicator lights 42 are fixedly installed at both ends of the limiting mounting groove 2, and the positioning indicator lights 42 are electrically connected to the pressure wave switch 1 inside the positioning mounting groove 3.
[0030] In some feasible methods, a mounting groove is provided at the top corner of the weighbridge, and the limit indicator light 41 and the positioning indicator light 42 are installed in the mounting groove and connected to the signal line of the pressure wave switch 1. The limit indicator light 41 and the positioning indicator light 42 are different colors. The buzzer is installed on both sides and the end of the weighbridge to facilitate the determination of the buzzer position.
[0031] As another specific embodiment of the vehicle position reminder device for weighbridge provided in the application, the sensing air pipe 11 includes an air pipe section 111 and a pressure rod 112. The pressure rod 112 is placed above the air pipe section 111, and the pressure rod 112 is slidably connected to the limiting mounting groove 2 and the positioning mounting groove 3.
[0032] It should be understood that by setting up the pressure-bearing rod 112, the pressure-bearing rod 112 protrudes out of the weighbridge and contacts the vehicle tire, reducing the possibility that the air pipe section 111 will be squeezed to the groove edge by the tire and thus damaged.
[0033] In some feasible configurations, for ease of manufacturing and installation, both the limiting mounting groove 2 and the positioning mounting groove 3 are rectangular grooves. Mounting brackets 113 are provided on both sides of the air tube section 111. The outer side of the mounting brackets 113 fits against the side of the groove, and the bottom clamps the air tube section 111. Space is provided on both sides to facilitate the deformation of the air tube section 111. The pressure-bearing rod 112 is a rectangular strip. The two mounting brackets 113 form a rectangular mounting position at the upper end, where the pressure-bearing rod 112 can be installed vertically. The bottom of the pressure-bearing rod 112 is designed to fit the arc shape of the air tube section 111, allowing for elastic reset by the air tube section 111. When the pressure-bearing rod 112 has a large mass, rectangular blocks can be provided on both sides of the pressure-bearing rod 112, and a reset spring can be provided between the rectangular blocks and the bottom of the mounting brackets 113.
[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A vehicle position reminder device for a weighbridge, comprising a pressure wave switch (1), the pressure wave switch (1) comprising a sensing air tube (11), the end of the sensing air tube (11) being connected to a conducting air tube (12), the conducting air tube (12) being connected to a pressure sensor (13), characterized in that: It also includes a limiting installation groove (2) opened at the upper end of the weighbridge near both sides, and a positioning installation groove (3) set perpendicular to the limiting installation groove (2). Multiple pressure wave switches (1) are provided. The sensing air tube (11) is fixedly installed in the limiting installation groove (2) and the positioning installation groove (3) respectively. The upper side of the sensing air tube (11) protrudes from the weighbridge. The air pressure sensor (13) is electrically connected to the alarm component (4). The sensing air tube (11) includes an air tube part (111) and a pressure rod (112). The pressure rod (112) is placed above the air tube part (111). The pressure rod (112) is slidably connected to the limiting installation groove (2) and the positioning installation groove (3).
2. The vehicle position reminder device for a weighbridge according to claim 1, characterized in that: There are two positioning mounting slots (3), which are located near the two ends of the weighbridge.
3. A vehicle location reminder device for a weighbridge according to claim 2, characterized in that: The alarm component (4) includes a buzzer installed at the location of the pressure wave switch (1).
4. A vehicle position reminder device for a weighbridge according to claim 3, characterized in that: Limit indicator lights (41) are fixedly installed at both ends of the limit mounting groove (2), and the limit indicator lights (41) are electrically connected to the pressure wave switch (1) inside the limit mounting groove (2).
5. A vehicle position reminder device for a weighbridge according to claim 4, characterized in that: Positioning indicator lights (42) are fixedly installed at both ends of the limiting installation groove (2), and the positioning indicator lights (42) are electrically connected to the pressure wave switch (1) inside the positioning installation groove (3).