A vehicle axle-mounted odometer

Abstract

This application discloses a vehicle axle-mounted odometer detector, relating to the field of automotive odometer detection technology. It includes a Hall element mounted on the vehicle body and magnets mounted on the vehicle axle via a mounting strip and a clamping structure. The clamping structure is slidably sleeved on the mounting strip and includes a limiting deformation seat and strain plates on both sides, with a gap between the limiting deformation seat and the strain plates. A pin passes through the mounting strip and is threaded to the bottom of this gap. The technical advantages of this application are: the magnets are mounted on the vehicle axle via the mounting strip and clamping structure; the Hall element detects the magnets, enabling the calculation of mileage per unit travel; multiple magnets are arranged and their positions are adjustable; the stability of the mounting strip on the vehicle axle is achieved by setting an extended arc for internal interference fit; and the limiting deformation seat and strain plates have different deformation directions, effectively ensuring the stability of the installation between the mounting strip and the magnets.

Description

Technical Field

[0001] This application relates to the field of automotive mileage detection technology, and in particular to a vehicle axle-mounted mileage detector. Background Technology

[0002] As a crucial link in the urban public transportation system, taxis provide efficient and personalized transportation services for the public. Accurate mileage measurement is paramount in taxi operations, directly impacting the fairness of fare settlement and profoundly influencing the standardized and orderly development of the taxi industry. Early taxi mileage measurement primarily relied on mechanical odometers. These odometers calculated mileage by measuring the number of wheel rotations and combining this with preset wheel circumference data. The basic principle is to use a mechanical gear transmission structure to transmit wheel rotation to a counting device; each wheel rotation increments the count, thus accumulating the total mileage. With the rise of electronic technology, electronic mileage measurement has gradually replaced mechanical odometers, becoming the mainstream method for taxi mileage measurement. Common electronic mileage detectors mostly use sensors to acquire vehicle travel information. Among these, Hall effect sensors are widely used, typically installed on wheel hubs or axles. When the vehicle is moving, the wheel rotation causes a change in the magnetic field around the sensor. The Hall effect sensor converts this magnetic field change into electrical pulse signals, the number of which is proportional to the number of wheel rotations.

[0003] Existing odometers commonly suffer from poor clamping performance when installed on vehicle axles. This directly leads to a relative rotational difference between the magnet and the axle, preventing the magnet from accurately following the axle's rotation. Consequently, the rotational signal collected by the odometer deviates from the actual rotation of the axle, resulting in discrepancies between the mileage measurement and the actual mileage traveled, severely impacting the accuracy of mileage detection. Therefore, effectively improving the installation stability of odometers and eliminating the relative rotational difference between the magnet and the axle at its source has become a critical technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] This device provides a vehicle axle-mounted odometer detector, the specific implementation of which is as follows:

[0005] A vehicle-mounted odometer includes:

[0006] Hall effect sensors installed on the vehicle body;

[0007] The Hall element calculates the vehicle's mileage by counting the number of rotations of the magnet, which is mounted on the car's axle using a mounting strip and a shaft-mounting structure.

[0008] The shaft-holding structure is slidably sleeved on the mounting strip. The shaft-holding structure includes a limiting deformation seat and strain plates on both sides. There is a gap between the limiting deformation seat and the strain plates. The pins pass through the mounting strip and are threaded to the bottom of the gap. The end of each pin presses against the limiting deformation seat and the strain plates. After deformation, the two are interference-fitted onto the mounting strip.

[0009] Preferably, both the limiting deformation seat and the strain plate are mounted on the mounting plate, and a magnet is mounted on the outer end face of the mounting plate.

[0010] Preferably, there are no fewer than two magnets arranged along the direction of the mounting strip, and both are connected to the mounting strip through a shaft-holding structure.

[0011] Based on the above technical solution, the magnet is fixed to the car axle using an mounting strip and a shaft-holding structure. The Hall element detects the magnet to calculate the mileage for a single trip. To further improve the accuracy of mileage calculation, multiple magnets are used in the design, allowing the Hall element to be triggered two or more times per rotation of the axle, thus effectively improving detection accuracy. The Hall element, acting as a magnetic sensor, generates an electrical signal by sensing changes in the magnetic field of the magnet (which rotates synchronously with the car axle). The number of signal triggers is directly related to the number of rotations of the axle. Combined with parameters such as the wheel circumference, the mileage can be calculated. This method is simple in principle, cost-effective, highly reliable, and is an existing technology for taxi mileage measurement.

[0012] Preferably, the mounting strip has an inner and outer guiding positioning groove along its arc direction, and the two ends of the mounting strip are respectively provided with a first positioning protrusion and a second positioning protrusion, and the two are connected by bolts.

[0013] Preferably, the overall outline of the mounting strip is a spiral structure, and the end of the mounting strip near the first positioning protrusion extends with an extension arc, and the extension direction of the extension arc points downward to the second positioning protrusion.

[0014] Based on the above technical solution, by adding an extended arc to the mounting strip that can form an internal interference fit with the car shaft, the installation stability of the mounting strip on the shaft is significantly improved. During assembly, the radial pressure generated by the interference fit makes the inner surface of the extended arc fit tightly against the outer surface of the shaft, forming a reliable mechanical lock.

[0015] Preferably, the limiting deformation seat has a hollow trapezoidal structure, and its two sides have a first opening for the installation strip to pass through.

[0016] Preferably, the strain plate has an outwardly inclined angled structure, and a second opening is provided at the bottom of the strain plate for the installation strip to pass through.

[0017] Based on the above technical solution, by setting a limiting deformation seat and a strain plate, the two have different deformation directions. By generating a radial and oblique pressing effect on the mounting strip, a circumferential anti-slip force is simultaneously formed when the shaft rotates, thereby avoiding gaps or relative displacement between the mounting strip and the magnet.

[0018] Preferably, the sliding guide structure between the magnet and the mounting strip has two arrangement forms, namely:

[0019] Firstly, the back of the mounting plate is provided with a circular positioning block that is threaded to the end of the pin, and the circular positioning block is slidably connected to the positioning groove.

[0020] Secondly, the mounting plate is threaded to two parallel pins, and the outer circumferential surfaces of the two pins slide against the two sides of the positioning groove respectively.

[0021] Based on the above technical solutions, the stability of the magnet during the position adjustment process is improved by setting a sliding guide structure between the magnet and the mounting strip; a pre-embedded groove can be set inside the positioning groove to realize the embedded installation of the pin, limit deformation seat and strain plate, so as to avoid the installation height being higher than the depth of the positioning groove and affecting the car shaft.

[0022] In summary, this application includes the following beneficial technical effects:

[0023] 1. This utility model installs magnets on the car axle using mounting strips and a shaft-holding structure. By using Hall effect sensors to detect the magnets, it realizes the calculation of mileage per unit travel. Furthermore, multiple magnets are deployed and their positions are adjustable. By triggering the Hall effect sensors twice or multiple times within a single turn, the accuracy of mileage calculation is improved.

[0024] 2. This utility model achieves stability in the installation of the mounting strip on the automobile axle by setting an extended arc for internal interference fit;

[0025] 3. This utility model, by setting limiting deformation seats and strain plates with different deformation directions, generates a pressing effect on the mounting strip in three different directions, thereby effectively ensuring the stability of the installation between the mounting strip and the shaft structure;

[0026] 4. This utility model has a simple structure. By setting a sliding guide structure between the magnet and the mounting strip, the stability of the magnet during the position adjustment process is improved. Attached Figure Description

[0027] Figure 1 This is a front view structural diagram of the present invention;

[0028] Figure 2 This is a side view structural diagram of the present invention;

[0029] Figure 3This is a schematic diagram of the installation strip in this utility model;

[0030] Figure 4 This is a schematic diagram of the shaft-holding structure in this utility model;

[0031] Figure 5 This is a structural schematic diagram of the modified application of the mounting strip and the shaft structure in this utility model;

[0032] Figure 6 This is a structural schematic diagram of the second application of the mounting strip and shaft structure in this utility model.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Automotive axle, 2. Mounting strip, 3. Hall element, 4. Magnet, 5. Shaft clamping structure, 6. Bolt, 7. Vehicle body, 8. Pin, 9. Mounting bracket.

[0035] 201. Positioning groove; 202. First positioning protrusion; 203. Second positioning protrusion; 204. Extended arc.

[0036] 501. Mounting plate; 502. Limiting deformation seat; 503. Strain plate; 504. First opening; 505. Second opening; 506. Circular positioning block. Detailed Implementation

[0037] The specific embodiments of this utility model are described below with reference to the accompanying drawings and examples:

[0038] It should be noted that the structures, proportions, sizes, etc. shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0039] Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0040] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0041] This application discloses a vehicle axle-mounted odometer detector.

[0042] Example 1

[0043] Reference Figures 1 to 2 This embodiment discloses a vehicle axle-mounted mileage detector, including a Hall element 3 mounted on the vehicle body 7 via a mounting bracket 9 and a magnet 4 mounted on the vehicle axle 1 via a mounting strip 2 and an axle-mounting structure 5. The Hall element 3 calculates the vehicle's mileage by counting the number of rotations of the magnet 4. In this structure, two magnets 4 are arranged along the arc direction of the mounting strip 2, and both are connected to the mounting strip 2 via the axle-mounting structure 5.

[0044] The shaft-holding structure 5 is slidably sleeved on the mounting strip 2. The two ends of the mounting strip 2 are respectively provided with a first positioning protrusion 202 and a second positioning protrusion 203, and the two are connected by bolts 6. In this structure, the overall outline of the mounting strip 2 is a spiral structure. The end of the mounting strip 2 near the first positioning protrusion 202 extends with an extension arc 204, and the extension direction of the extension arc 204 points to the bottom of the second positioning protrusion 203.

[0045] The specific implementation process is as follows: During the movement of the vehicle body 7, the magnet 4 rotates synchronously with the car shaft 1. After the Hall element 3 detects the number of rotations of the magnet 4, it identifies the mileage of a single trip of the taxi based on calculations in the existing technology.

[0046] Example 2

[0047] Reference Figures 1 to 4 In addition to the above embodiments, this embodiment also discloses a vehicle axle-mounted odometer detector. The limiting deformation seat 502 and the strain plate 503 are both disposed on the mounting plate 501, and a magnet 4 is installed on the outer end face of the mounting plate 501. In this structure, the axle-mounted structure 5 includes the limiting deformation seat 502 and the strain plate 503 disposed on both sides. A gap is left between the limiting deformation seat 502 and the strain plate 503. The pin 8 passes through the mounting strip 2 and is threaded to the bottom of the gap. The end of each pin 8 is pressed against the limiting deformation seat 502 and the strain plate 503. After deformation, the two are interference-fitted with the mounting strip 2.

[0048] The limiting deformation seat 502 has a hollow trapezoidal structure, and first openings 504 are provided on both sides for the installation strip 2 to pass through. The strain plate 503 has an outwardly inclined angled structure, and a second opening 505 is provided below the strain plate 503 for the installation strip 2 to pass through.

[0049] The specific implementation process is as follows: When it is necessary to lock the magnet 4 onto the mounting strip 2, the pin 8 has a T-shaped structure and moves downward when tightened; the top of the pin 8 presses down on the limiting deformation seat 502 and the strain plate 503; the strain plate 503 deforms outward, and its outer end cooperates with the mounting plate 501 to form the first clamping position of the mounting strip 2; at the same time, the limiting deformation seat 502 is pressed down by force, and its top end cooperates with the mounting plate 501 to form the second clamping position of the mounting strip 2.

[0050] Example 3

[0051] Reference Figures 4 to 5 In addition to the above embodiment 2, this embodiment also discloses a vehicle axle-mounted odometer detector. The mounting strip 2 has an inner and outer conductive positioning groove 201 along its arc direction. The back of the mounting plate 501 is provided with a circular positioning block 506 that is threaded to the end of the pin 8, and the circular positioning block 506 is slidably connected to the positioning groove 201. When the position of the axle-mounted structure 5 is adjusted along the length direction of the mounting strip 2, the circular positioning block 506 slides along the direction of the positioning groove 201, ensuring the stability of the sliding of the axle-mounted structure 5. After sliding into place, the axle-mounted structure 5 is locked on the mounting strip 2 by tightening the pin 8.

[0052] Example 4

[0053] Reference Figure 3 and Figure 6 In addition to the above embodiment 2, this embodiment also discloses a vehicle axle-mounted odometer detector. The mounting strip 2 has an inner and outer conductive positioning groove 201 along its arc direction. The mounting plate 501 is threaded to two parallel pins 8, and the outer peripheral surfaces of the two pins 8 slide against the two sides of the positioning groove 201 respectively. When the axle-mounted structure 5 is adjusted in position along the length direction of the mounting strip 2, the smooth surface of the middle section of the two pins 8 slides with the positioning groove 201, ensuring the stability of the sliding of the axle-mounted structure 5. After sliding into position, the pins 8 are tightened, the front end of the pins 8 is threaded to the axle-mounted structure 5 and deformed, thereby locking the axle-mounted structure 5 onto the mounting strip 2.

[0054] Many other changes and modifications can be made without departing from the concept and scope of this utility model. It should be understood that this utility model is not limited to the specific embodiments, and the scope of this utility model is defined by the appended claims.

Claims

1. A vehicle-mounted odometer, characterized in that, include: Hall element (3) installed on the vehicle body (7); The Hall element (3) calculates the mileage of the car by counting the number of rotations of the magnet (4) mounted on the car axle (1) by the mounting strip (2) and the axle structure (5). The shaft-holding structure (5) is slidably sleeved on the mounting strip (2). The shaft-holding structure (5) includes a limiting deformation seat (502) and strain plates (503) on both sides. There is a gap between the limiting deformation seat (502) and the strain plates (503). The pins (8) pass through the mounting strip (2) and are threaded to the bottom of the gap. The ends of the pins (8) press against the limiting deformation seat (502) and the strain plates (503). After deformation, the two are interference-fitted to the mounting strip (2).

2. The vehicle axle-mounted odometer detector according to claim 1, characterized in that, The limiting deformation seat (502) and the strain plate (503) are both provided on the mounting plate (501), and a magnet (4) is installed on the outer end face of the mounting plate (501).

3. A vehicle-mounted odometer according to claim 2, characterized in that, The mounting strip (2) has an inner and outer guiding positioning groove (201) along its arc direction. The two ends of the mounting strip (2) are respectively provided with a first positioning protrusion (202) and a second positioning protrusion (203), and the two are connected by bolts (6).

4. A vehicle-mounted odometer according to claim 3, characterized in that, The overall outline of the mounting strip (2) is a vortex structure. The mounting strip (2) has an extension arc (204) extending from one end near the first positioning protrusion (202), and the extension direction of the extension arc (204) points to the bottom of the second positioning protrusion (203).

5. A vehicle-mounted odometer according to claim 1, characterized in that, The number of magnets (4) arranged along the direction of the mounting strip (2) is not less than two, and both are connected to the mounting strip (2) through the shaft structure (5).

6. A vehicle-mounted odometer according to claim 1, characterized in that, The limiting deformation seat (502) has a hollow trapezoidal structure, and first openings (504) are provided on both sides for the mounting strip (2) to pass through.

7. A vehicle-mounted odometer according to claim 1, characterized in that, The strain plate (503) has an outwardly sloping angle structure, and a second opening (505) is provided below the strain plate (503) for the mounting strip (2) to pass through.

8. A vehicle-mounted odometer according to claim 3, characterized in that, The back of the mounting plate (501) is provided with a circular positioning block (506) that is threaded to the end of the pin (8), and the circular positioning block (506) is slidably connected to the positioning groove (201).

9. A vehicle-mounted odometer according to claim 3, characterized in that, The mounting plate (501) is threaded to two parallel pins (8), and the outer peripheral surfaces of the two pins (8) slide against the two sides of the positioning groove (201).

Images