Wheel motion state monitoring device

Abstract

The utility model belongs to the technical field of wheel monitoring, and discloses a wheel motion state monitoring device, which comprises a fixed body, an elastic clamping foot, a balancing weight and a monitoring assembly, and is characterized in that the fixed body is provided with a circular cavity; the elastic clamping foot is arranged on the fixing body so that the fixing body can be fixed to a rim center hole. The balancing weight is provided with an arc-shaped surface, the arc-shaped surface of the balancing weight abuts against the cavity wall of the cavity, and when the fixing body rotates, the arc-shaped surface of the balancing weight slides relative to the cavity wall of the cavity; the monitoring assembly is arranged on the balancing weight, the monitoring assembly can collect vibration signals of the wheels in the direction perpendicular to the ground and transmit the vibration signals to an external device, and the device is simple in structure and easy to disassemble and assemble.

Description

Technical Field

[0001] This utility model relates to the field of wheel monitoring technology, and in particular to a wheel motion status monitoring device. Background Technology

[0002] With the rapid development of the automotive industry, safety performance has become an increasingly important feature for drivers; and the safety performance of the wheels is an important part of this. Good wheels can improve vehicle stability, braking and handling, and also extend tire life.

[0003] Whether the wheel movement is healthy can be fed back through the wheel's movement status. In order to ensure driving safety and improve the service life of the wheel, the movement status of the wheel can be monitored. There are various wheel detection systems in the existing technology, which are complex in structure and are all integrated into the tire, making installation and maintenance relatively complicated. Utility Model Content

[0004] The purpose of this invention is to provide a wheel motion status monitoring device that is simple in structure and easy to assemble and disassemble.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] Wheel motion status monitoring device, comprising:

[0007] The fixing body has a circular cavity;

[0008] The elastic locking foot is disposed on the fixing body so as to fix the fixing body to the center hole of the wheel rim;

[0009] The counterweight has an arc-shaped surface that abuts against the cavity wall. When the fixed body rotates, the arc-shaped surface slides relative to the cavity wall.

[0010] A monitoring component is mounted on the counterweight and is capable of collecting vibration signals of the wheel perpendicular to the ground and transmitting them to an external device.

[0011] In some embodiments, the monitoring component includes a fixed box fixed to the counterweight. The fixed box contains a data acquisition unit and a control unit. The data acquisition unit can acquire vibration signals of the wheel in the direction perpendicular to the ground and transmit them to an external device through the control unit.

[0012] In some embodiments, the acquisition unit is a three-phase accelerometer.

[0013] In some embodiments, the control unit includes a vibration generator, an energy storage device, and a signal transmitter. The vibration generator is connected to the energy storage device, the energy storage device is connected to the acquisition unit and the signal transmitter, and the acquisition unit is connected to the signal transmitter.

[0014] In some embodiments, the surface of the fixing body where the elastic locking foot is disposed has a through hole.

[0015] In some embodiments, the wheel motion status monitoring device is provided with a sealing cover, which covers the passage hole.

[0016] In some embodiments, a plurality of the resilient locking feet are arranged around the periphery of the through hole.

[0017] In some embodiments, the resilient locking foot includes a script body and a protrusion, a first end of the script body is connected to the fixing body, a second end of the script body extends away from the fixing body, and the protrusion is disposed on the side of the script body opposite to the through hole.

[0018] In some embodiments, the fixing body includes a fixing groove and a fixing cover, the inner cavity of the fixing groove is circular, and the fixing cover is disposed on the groove opening of the fixing groove.

[0019] In some embodiments, a sealing element is clamped between the fixing cover and the fixing groove.

[0020] The beneficial effects of this utility model are:

[0021] The fixing body can be fixed to the center hole of the wheel rim by setting elastic clips on the fixing body. Since the fixing body has a circular cavity, when the wheel drives the fixing body to rotate, the arc-shaped surface of the counterweight slides relative to the cavity wall and always abuts against the cavity wall. However, the counterweight does not rotate. It can only vibrate in the cavity when the wheel vibrates up and down. The vibration signal of the wheel in the direction perpendicular to the ground is collected by the monitoring component set on the counterweight and sent to the external device. The current health condition of the wheel is judged by analyzing the vibration frequency and vibration amplitude of the vibration signal perpendicular to the ground. The structure is simple and can be installed by snapping it on the center hole of the wheel rim. It is easy to install and disassemble. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the wheel motion state monitoring device of this utility model;

[0023] Figure 2 This is a top view of the wheel motion status monitoring device of this utility model without the fixed cover;

[0024] Figure 3 This is a connection diagram of the monitoring component of this utility model;

[0025] Figure 4 This is a side view of the wheel motion status monitoring device of this utility model;

[0026] Figure 5 This is a partial cross-sectional view of the wheel motion state monitoring device of this utility model;

[0027] Figure 6 This is a schematic diagram of the display cover of the wheel motion status monitoring device of this utility model.

[0028] In the picture:

[0029] 1. Fixing body; 11. Circular cavity; 12. Through hole; 13. Fixing groove; 14. Fixing cover;

[0030] 2. Flexible locking feet; 21. Script body; 22. Protrusion;

[0031] 3. Counterweight;

[0032] 4. Monitoring components; 41. Mounting box; 42. Acquisition unit; 43. Control unit; 431. Vibration generator; 432. Energy storage unit; 433. Signal transmitter;

[0033] 5. Seal the lid;

[0034] 6. Sealing components. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0036] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between 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.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0039] like Figures 1 to 6 As shown, this application provides a wheel motion state monitoring device, which includes a fixed body 1, an elastic locking foot 2, a counterweight 3, and a monitoring component 4. The fixed body 1 is provided with a circular cavity 11; the elastic locking foot 2 is disposed on the fixed body 1 so as to fix the fixed body 1 to the center hole of the wheel rim; the counterweight 3 has an arc-shaped surface, and the arc-shaped surface of the counterweight 3 abuts against the cavity wall. When the fixed body 1 rotates, the arc-shaped surface of the counterweight 3 slides relative to the cavity wall; the monitoring component 4 is disposed on the counterweight 3, and the monitoring component 4 can collect the vibration signal of the wheel in the direction perpendicular to the ground and transmit it to an external device.

[0040] By setting elastic clips 2 on the fixing body 1, the fixing body 1 can be fixed to the center hole of the wheel rim (the logo fixing hole). Since the fixing body 1 has a circular cavity 11, when the wheel drives the fixing body 1 to rotate, the arc-shaped surface of the counterweight 3 slides relative to the cavity wall of the circular cavity 11 and always abuts against the cavity wall of the circular cavity 11. However, the counterweight 3 does not rotate. It can only vibrate in the circular cavity 11 when the wheel vibrates up and down. Thus, the monitoring component 4 set on the counterweight 3 collects the vibration signal of the wheel in the direction perpendicular to the ground and sends it to an external device. By analyzing the vibration frequency and vibration amplitude of the vibration signal perpendicular to the ground, the current health condition of the wheel can be judged. This structure is simple and can be installed by simply snapping it on the center hole of the wheel rim. It is easy to install and remove.

[0041] like Figure 2As shown, in the current embodiment, the longitudinal section of the counterweight 3 is semi-circular, and the arc-shaped surface of the counterweight 3 is in smooth contact with the cavity wall of the circular cavity 11, thereby reducing friction and facilitating relative sliding. It is understood that the above-mentioned smooth contact refers to relative smoothness, not absolute smoothness.

[0042] like Figure 3 As shown, in some embodiments, the monitoring component 4 includes a fixing box 41, which is fixed to the counterweight 3. In the current embodiment, the fixing box 41 is disposed on the top plane of the counterweight 3. Exemplarily, the fixing box 41 can be connected to the counterweight 3 by means of snap-fit, adhesive, etc., and the material of the counterweight 3 is not specifically limited. The monitoring component 4 also includes a data acquisition unit 42 and a control unit 43 disposed in the fixing box 41. The data acquisition unit 42 can acquire vibration signals of the wheel in the direction perpendicular to the ground, and determine the current health status of the wheel by the vibration frequency and vibration amplitude. The data acquisition unit 42 can be, but is not limited to, a three-phase acceleration sensor. By connecting the data acquisition unit 42 to the counterweight 3, it is ensured that the lateral and longitudinal accelerations are always zero, excluding vibration signals in other directions, and only acquiring vibration signals in the direction perpendicular to the ground. After collecting the signal, the data acquisition unit 42 sends it to an external device through the control unit 43. The external device can be, but is not limited to, a vehicle infotainment system, a maintenance device, a mobile communication device, etc.

[0043] like Figure 3 As shown, in some embodiments, the control unit 43 includes a signal transmitter 433 connected to the acquisition unit 42, thereby connecting and transmitting data with external devices. The connection and transmission method is not specifically limited; one possible method is Bluetooth connection and transmission. Furthermore, the control unit 43 also includes a vibration generator 431 and an energy storage device 432. The vibration generator 431 is connected to the energy storage device 432, generating electricity through vibration during wheel movement and storing it in the energy storage device 432. The energy storage device 432 connects the acquisition unit 42 and the signal transmitter 433 to power both. The acquisition unit 42 is connected to the signal transmitter 433, allowing the signals acquired by the acquisition unit 42 to be transmitted through the signal transmitter 433. Of course, the control unit 43 may also include necessary components such as a circuit board, which will not be elaborated further. Using the vibration generator 431 for power generation enables long-term battery life, avoiding frequent battery replacements. It should be noted that the vibration generator 431 can be a miniature vibration generator in the prior art, such as the vibration generator mentioned in CN119652049A and CN109600013A.

[0044] like Figure 4As shown, in some embodiments, for ease of subsequent maintenance, the fixing body 1 includes a fixing groove 13 and a fixing cover 14. The inner cavity of the fixing groove 13 is circular, and the fixing cover 14 covers the opening of the fixing groove 13, thereby forming the aforementioned circular cavity 11. In the current embodiment, the fixing cover 14 is snapped into the opening of the fixing groove 13. Further, a fixing step is provided on the inner wall of the opening of the fixing groove 13, and the fixing cover 14 abuts against the aforementioned fixing step. Figure 5 As shown, to ensure a seal, a mounting groove is also provided on the fixed step, and a sealing element 6 is embedded in the mounting groove, so that the sealing element 6 is clamped between the fixed cover 14 and the fixed groove body 13, thereby ensuring the outer sealing. For example, the sealing element 6 is a rubber ring.

[0045] Because the length of the axle used for wheel installation is currently variable, the depth of the center hole in the wheel rim varies across different vehicle models. Based on this reason, if... Figure 6 As shown, in some embodiments, the side of the fixing body 1 with the elastic locking foot 2 is also provided with a through hole 12, so that on vehicles with a shallow center hole in the wheel rim, the through hole 12 can be used to appropriately avoid the axle. Furthermore, the wheel motion monitoring device is provided with a sealing cover 5, which covers the through hole 12, thereby blocking the through hole 12 when it is not necessary to avoid the axle, reducing the probability of debris entering. It should be noted that, in order to better secure the sealing cover 5, a step can also be provided on the inner wall of the through hole 12 to support the sealing cover 5.

[0046] like Figure 4 As shown, to ensure the stability of the fixation, in some embodiments, multiple elastic locking feet 2 are provided, and the multiple elastic locking feet 2 are arranged around the outer periphery of the through hole 12. Each elastic locking foot 2 includes a script body 21, the first end of which is connected to the fixing body 1, and the second end of which extends away from the fixing body 1. A protrusion 22 is also provided on the side of the script body 21 facing away from the through hole 12, thereby locking the protrusion 22 into the center hole of the rim to fix the wheel motion monitoring device. To facilitate the insertion and removal of the protrusion 22 from the center hole of the rim, the protrusion 22 is provided with inclined surfaces. Two inclined surfaces are located on the upper and lower sides of the protrusion 22, respectively, and are connected to the ends of the protrusion 22 away from the script body 21, thus forming a triangular shape. Therefore, when inserting or removing the protrusion 22 from the center hole of the rim, only pressing or pulling the fixing body 1 is required.

[0047] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A wheel motion status monitoring device, characterized in that, include: A fixing body (1) is provided with a circular cavity (11); Elastic locking foot (2), the elastic locking foot (2) is disposed on the fixing body (1) so as to fix the fixing body (1) to the center hole of the wheel rim; The counterweight (3) has an arc-shaped surface that abuts against the wall of the circular cavity (11). When the fixed body (1) rotates, the arc-shaped surface slides relative to the wall of the circular cavity (11). The monitoring component (4) is disposed on the counterweight (3). The monitoring component (4) is capable of collecting vibration signals of the wheel perpendicular to the ground and transmitting them to an external device.

2. The wheel motion state monitoring device according to claim 1, characterized in that, The monitoring component (4) includes a fixed box (41) which is fixed to the counterweight (3). The fixed box (41) is provided with a collection unit (42) and a control unit (43). The collection unit (42) can collect vibration signals of the wheel perpendicular to the ground and transmit them to an external device through the control unit (43).

3. The wheel motion state monitoring device according to claim 2, characterized in that, The acquisition unit (42) consists of three acceleration sensors.

4. The wheel motion state monitoring device according to claim 2, characterized in that, The control unit (43) includes a vibration generator (431), an energy storage unit (432), and a signal transmitter (433). The vibration generator (431) is connected to the energy storage unit (432). The energy storage unit (432) is connected to the acquisition unit (42) and the signal transmitter (433). The acquisition unit (42) is connected to the signal transmitter (433).

5. The wheel motion state monitoring device according to claim 1, characterized in that, The surface of the fixing body (1) on which the elastic locking foot (2) is provided has a through hole (12).

6. The wheel motion state monitoring device according to claim 5, characterized in that, The wheel motion status monitoring device is provided with a sealing cover (5), which covers the passage hole (12).

7. The wheel motion state monitoring device according to claim 5, characterized in that, Multiple elastic locking feet (2) are arranged around the outer periphery of the through hole (12).

8. The wheel motion state monitoring device according to claim 5, characterized in that, The elastic locking foot (2) includes a script body (21) and a protrusion (22). The first end of the script body (21) is connected to the fixing body (1), and the second end of the script body (21) extends away from the fixing body (1). The protrusion (22) is disposed on the side of the script body (21) away from the through hole (12).

9. The wheel motion state monitoring device according to any one of claims 1-8, characterized in that, The fixing body (1) includes a fixing groove (13) and a fixing cover (14). The inner cavity of the fixing groove (13) is circular, and the fixing cover (14) is placed over the groove of the fixing groove (13).

10. The wheel motion state monitoring device according to claim 9, characterized in that, A sealing element (6) is held between the fixing cover (14) and the fixing groove (13).

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