Tire pressure monitoring device for a trailer

Abstract

The utility model provides a kind of tyre pressure monitoring device for tractor, including tyre pressure sensor, first repeater, second repeater, support one and support two, tyre pressure sensor is installed on the rim of each wheel, wherein the tyre pressure sensor on front axle is electrically connected with tractor instrument by first repeater, the tyre pressure sensor on middle axle and rear axle is electrically connected with tractor instrument by second repeater;First repeater is installed on support one, support one both ends are bent outward respectively, and bending portion is connected with frame;Second repeater is installed on support two, and horizontal part of support two is connected with frame.The utility model realizes real-time monitoring to each tyre pressure of tractor by the signal transmission of sensor and repeater, and timely discovers abnormal situation of tyre, and repeater is installed on frame by support, and the installation position of repeater can be flexibly adjusted according to the specific structure of tractor, and line layout is facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of tire pressure monitoring technology, and in particular relates to a tire pressure monitoring device for tractor vehicles. Background Technology

[0002] During the operation of a tractor unit, tire pressure has a crucial impact on vehicle safety. When a tractor unit is connected to a trailer for cargo transport, the middle and rear axles often bear the main load, resulting in significant pressure on the tires. Under prolonged driving conditions or poor road conditions, the tires on the middle and rear axles are more prone to wear and overheating, which can lead to serious malfunctions such as tire blowouts.

[0003] For tractor-trailers transporting hazardous materials and tractor-trailers with speeds exceeding 90 km / h, relevant operating regulations explicitly require that tire pressure monitoring devices be installed when a single tire is used on the middle or rear axle to ensure driving safety. However, existing tire pressure monitoring devices are often limited to monitoring the tire pressure of the front axle tires, lacking effective means to monitor the tire pressure of the middle and rear axle tires. This fails to meet the regulatory requirements for monitoring the tire pressure of the middle and rear axle tires, making it difficult to detect potential abnormalities in the middle and rear axle tires in a timely manner, thus increasing the safety risks of vehicle operation. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model aims to propose a tire pressure monitoring device for tractor vehicles. This device solves the problem of inconvenient monitoring of the rear axle tires in tractor vehicles. By using tire pressure sensors and repeaters, the tire pressure of all tires in the vehicle can be monitored, thereby improving the overall driving safety of the vehicle.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] A tire pressure monitoring device for a tractor unit, wherein the tractor unit's frame has a front axle, a middle axle, and a rear axle arranged sequentially from the front to the rear, and each end of the front axle, middle axle, and rear axle is equipped with a wheel; a tractor unit instrument is installed in the driver's cab; the tire pressure monitoring device includes:

[0007] A bracket for installing the first repeater is a U-shaped bracket with both ends bent outwards and the bent parts connected to the vehicle frame.

[0008] A second bracket for mounting the second repeater, the second bracket being an L-shaped plate, the horizontal portion of the second bracket being connected to the vehicle frame; wherein:

[0009] Tire pressure sensors are installed on the rims of each wheel of the tractor. The tire pressure sensors on the front axle wheels are electrically connected to the tractor's instrument panel via a first repeater, while the tire pressure sensors on the middle and rear axles are electrically connected to the tractor's instrument panel via a second repeater.

[0010] Furthermore, the first repeater is located above the front axle and is mounted on the side of the frame near the front axle rim.

[0011] Furthermore, the second repeater is mounted on a crossbeam on the frame near the center axle.

[0012] Furthermore, the horizontal portion of the bracket is provided with a through hole for bolting to the first repeater, and the two bent ends of the bracket are respectively provided with through holes for bolting to the vehicle frame.

[0013] Furthermore, the horizontal part of the second bracket is located at the bottom of the vehicle frame crossbeam and is bolted to the vehicle frame crossbeam, and the vertical part of the second bracket is bolted to the second repeater.

[0014] Furthermore, the tire pressure sensor is a built-in tire pressure sensor.

[0015] Furthermore, the tire pressure sensor is model MLX91805.

[0016] Furthermore, the first and second repeaters are model CM4XL-4S / 4M.

[0017] Compared with existing technologies, the tire pressure monitoring device for tractors described in this utility model has the following advantages:

[0018] The tire pressure monitoring device for tractor units described in this invention features a tire pressure sensor installed on the rim of each wheel. These sensors monitor tire pressure in real time and convert the monitored pressure data into electrical signals, which are then sent to corresponding repeaters. The repeaters process and amplify the received signals before transmitting them to the tractor unit's instrument panel. Upon receiving the tire pressure signals from the repeaters, the instrument panel displays the tire pressure values ​​of each tire digitally on the dashboard. The driver can visually view the real-time tire pressure of each tire on the tractor unit's instrument panel, allowing for timely understanding of tire inflation and deflation. The repeaters are mounted on the vehicle frame via brackets, facilitating flexible adjustment of the repeater's installation position according to the specific structure of the tractor unit, ensuring the repeater's plug-in ports are in suitable locations for convenient wiring layout.

[0019] This invention uses sensors and repeaters to transmit signals and achieve real-time monitoring of tire pressure on each tire of a tractor unit, enabling timely detection of tire abnormalities such as excessively high or low tire pressure. For vehicles transporting hazardous materials or tractor units with speeds exceeding 90 km / h, when a single tire is used on the middle or rear axle, relevant regulations require that a tire pressure monitoring device be installed on the single-tire axle. Attached Figure Description

[0020] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0021] Figure 1 This is a schematic diagram of the tractor frame structure provided in an embodiment of the present utility model;

[0022] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0023] Figure 3 for Figure 1 Enlarged view of part B in the middle;

[0024] Figure 4 This is a schematic diagram of the installation of the vehicle frame and the first repeater provided in an embodiment of the present utility model;

[0025] Figure 5 This is a schematic diagram of the installation of the vehicle frame and the second repeater provided in an embodiment of the present utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Frame; 2. Front axle; 3. Bottom axle; 4. Rear axle; 5. Wheel rim; 6. Tire pressure sensor; 7. First repeater; 8. Second repeater; 9. Bracket 1; 10. Bracket 2. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0029] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] like Figures 1 to 5 As shown, a tire pressure monitoring device for a tractor unit is disclosed. The tractor unit's frame 1 has a front axle 2, a middle axle 3, and a rear axle 4 arranged sequentially from the front to the rear. Wheels are mounted at both ends of the front axle 2, the middle axle 3, and the rear axle 4. A tractor unit instrument panel is installed in the driver's cab. The tire pressure monitoring device includes:

[0033] A bracket 9 for installing the first repeater 7, wherein the bracket 7 is a U-shaped bracket with both ends bent outwards and the bent ends connected to the frame 1;

[0034] A bracket 10 for mounting the second repeater 8, wherein the bracket 10 is an L-shaped plate, and the horizontal part of the bracket 10 is connected to the vehicle frame 1; wherein:

[0035] Tire pressure sensors 6 are installed on the rims 5 of each wheel of the tractor. The tire pressure sensors 6 on the front axle 2 wheel are electrically connected to the tractor instrument via a first repeater 7, and the tire pressure sensors on the middle axle 3 and the rear axle 4 are electrically connected to the tractor instrument via a second repeater 8.

[0036] The tire pressure monitoring device for tractors described in this utility model has a tire pressure sensor installed on the rim of each wheel. The tire pressure sensor monitors the tire pressure in real time and converts the monitored tire pressure data into an electrical signal, which is then sent to the corresponding repeater. The repeater processes and amplifies the received signal and transmits it to the tractor's instrument panel. After receiving the tire pressure signal from the repeater, the tractor's instrument panel displays the tire pressure value of each tire in digital form on the instrument panel.

[0037] In a preferred embodiment of this utility model, the first repeater 7 is located above the front axle 2 and is installed on the side of the frame 1 near the wheel rim 5, ensuring that the signal coverage of the first repeater 7 is accurately focused on the tire pressure sensors 6 of the wheel rims 5 at both ends of the front axle 2, ensuring that the tire pressure data of all tires on the front axle 2 can be effectively collected and transmitted, avoiding the problem of weak or unreceived signals from some tires due to positional deviation.

[0038] In a preferred embodiment of this invention, the second repeater 8 is mounted on a crossbeam on the frame 1 near the central axle 3, placing the second repeater 8 within the signal transmission range of the tire pressure sensors 6 on the central axle 3 and rear axle 4. This results in a short signal transmission distance and minimal attenuation, enabling stable reception of tire pressure signals from the central and rear axles, ensuring continuous and accurate data, and improving the reliability of the device. The crossbeam is a lateral support structure of the frame, and its placement here provides the repeater with good stability.

[0039] In a preferred embodiment of the present invention, the horizontal part of the bracket 9 is provided with a through hole for bolting to the first repeater 7, and the two ends of the bracket 9 are respectively provided with through holes for bolting to the frame 1. The frame 1 is provided with corresponding through holes for bolts to pass through.

[0040] Specifically, the two bent ends of the U-shaped bracket are bolted to the vehicle frame 1, allowing for flexible adjustment of the installation position of the first repeater 7 according to the specific structure of the tractor. This ensures that the plug-in port of the first repeater 7 is in a suitable position, facilitating wiring and ensuring signal reception quality. When the first repeater 7 needs to be inspected or replaced, it can be disassembled simply by loosening the bolts, and vice versa. No complicated operations are required, reducing maintenance costs and time.

[0041] In a preferred embodiment of this utility model, the horizontal portion of the second bracket 10 is located at the bottom of the crossbeam of the vehicle frame 1 and is bolted to the crossbeam of the vehicle frame 1, while the vertical portion of the second bracket 10 is bolted to the second repeater 8. The second bracket 10 allows for flexible adjustment of the installation position of the second repeater 8 according to the specific structure of the tractor, ensuring that the plug-in port of the second repeater 8 is in a suitable position, facilitating wiring layout.

[0042] When the second repeater 8 needs to be inspected or replaced, it can be disassembled simply by loosening the bolts, and vice versa. No complicated operations are required, which reduces maintenance costs and time.

[0043] In a preferred embodiment of this invention, the tire pressure sensor 6 is a built-in tire pressure sensor, which can more stably monitor the air pressure inside the tire and is less affected by the external environment. Specifically, the tire pressure sensor 6 is installed on each wheel rim 5 to monitor the tire pressure of the corresponding tire and convert it into an electrical signal to be sent to the corresponding repeater.

[0044] In a preferred embodiment of this utility model, the tire pressure sensor 6 is model MLX91805, and the first repeater 7 and the second repeater 8 are model CM4XL-4S / 4M.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tire pressure monitoring device for a tractor unit, wherein the tractor unit's frame is provided with a front axle, a middle axle, and a rear axle sequentially from the front to the rear, and each end of the front axle, middle axle, and rear axle is provided with a wheel; and a tractor unit instrument is provided in the driver's cab; characterized in that, The tire pressure monitoring device includes: A bracket for installing the first repeater is a U-shaped bracket with both ends bent outwards and the bent parts connected to the vehicle frame. A second bracket for mounting the second repeater, the second bracket being an L-shaped plate, the horizontal portion of the second bracket being connected to the vehicle frame; wherein: Tire pressure sensors are installed on the rims of each wheel of the tractor. The tire pressure sensors on the front axle wheels are electrically connected to the tractor's instrument panel via a first repeater, while the tire pressure sensors on the middle and rear axles are electrically connected to the tractor's instrument panel via a second repeater.

2. The tire pressure monitoring device for tractors according to claim 1, characterized in that: The first repeater is located above the front axle and is mounted on the side of the frame near the front axle rim.

3. The tire pressure monitoring device for tractors according to claim 1, characterized in that: The second repeater is mounted on a crossbeam on the frame near the center axle.

4. The tire pressure monitoring device for tractors according to claim 1, characterized in that: The horizontal part of the bracket is provided with a through hole for bolting to the first repeater, and the two bent ends of the bracket are respectively provided with through holes for bolting to the vehicle frame.

5. The tire pressure monitoring device for tractors according to claim 1, characterized in that: The horizontal part of the second bracket is located at the bottom of the vehicle frame crossbeam and is bolted to the vehicle frame crossbeam. The vertical part of the second bracket is bolted to the second repeater.

6. The tire pressure monitoring device for tractors according to claim 1, characterized in that: The tire pressure sensor is a built-in tire pressure sensor.

7. The tire pressure monitoring device for tractors according to claim 1, characterized in that: The tire pressure sensor is model MLX91805.

8. The tire pressure monitoring device for tractors according to claim 1, characterized in that: The first and second repeaters are model CM4XL-4S / 4M.

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