Fixing device, tire pressure monitor and monitoring method

Abstract

This invention discloses a fixing device, a tire pressure monitoring device (TPMS), and a monitoring method. The fixing device is suitable for fixing the TPMS and includes a strap having a first end and a second end, and a buckle at the first end of the strap. The buckle has a receiving space for the second end of the strap to pass through, and a locking block is provided within the receiving space. The second end of the strap has several adjustment holes, which can be selectively engaged with the locking block to adjust the length of the second end of the strap passing through the receiving space. A limiting member is provided within the receiving space, operable in a first position and a second position. In the first position, the limiting member and the locking block are separated; in the second position, the limiting member abuts against the locking block to prevent the second end of the strap from detaching from the receiving space. By providing a limiting member, this invention enables the fixing device to securely fix the TPMS to wheel rims of different sizes, preventing it from easily coming loose. Simultaneously, the user can easily adjust the tightness of the strap and remove or detach it by moving the limiting member, making the operation very convenient and quick.

Description

Technical Field

[0001] This invention relates to the field of vehicle monitoring technology, and more particularly to a fixed device, a tire pressure monitor, and a monitoring method. Background Technology

[0002] Tire blowouts are a frequent occurrence during high-speed driving, causing traffic accidents and long being one of the most worrying and difficult-to-prevent problems for all drivers. Existing technology includes a TPMS (Tire Pressure Monitoring System) for real-time automatic detection of tire pressure while the vehicle is in motion. It primarily involves installing highly sensitive sensors on the tires to monitor tire pressure, temperature, and other data in real time, whether the vehicle is moving or stationary. This data is then wirelessly transmitted to a receiver installed in the driver's cab, alerting the driver with sound and light to ensure driving safety.

[0003] Currently, TPMS installation mainly involves using straps to attach the transmitter-equipped mounting bracket to the wheel hub. The transmitter is hidden under the tire, eliminating the need for frequent installation and removal. The sensor's sensitivity is stable and reliable, and it has a long service life.

[0004] Referring to application document CN200960836Y, the straps often bind the transmitter to the hub through the connection between bolts and nuts. This setup involves many parts, especially bolts and nuts, which are prone to being lost and require the purchase of new parts for assembly. Moreover, during the binding and adjustment of the strap length, the user needs to use external tools to tighten or loosen the nuts, which is not convenient enough.

[0005] Therefore, how to improve the technical defects existing in the prior art has always been a problem that ordinary people skilled in the art need to solve. Summary of the Invention

[0006] The purpose of this invention is to provide a fixing device, a tire pressure monitoring device, and a monitoring method. The fixing device can quickly and securely bind the tire pressure monitoring device to the wheel hub, and its size is adjustable to fit wheel hubs of different sizes. It has a wide range of applications and is not easy to loosen.

[0007] The technical solution provided by this invention is as follows:

[0008] A mounting device suitable for a tire pressure monitoring system includes:

[0009] A strap, having a first end and a second end;

[0010] A buckle is provided at the first end of the strap and has a receiving space for the second end of the strap to pass through;

[0011] The receiving space is provided with a locking block, and the second end of the strap is provided with a plurality of adjustment holes. The plurality of adjustment holes can be selectively matched with the locking block for limiting the length of the second end of the strap passing through the receiving space.

[0012] The accommodating space is provided with a limiting member, which can be operably positioned in a first position and a second position;

[0013] In the first position, the limiting member and the locking block are separated; in the second position, the limiting member abuts against the locking block to prevent the second end of the strap from leaving the receiving space.

[0014] In some embodiments, the locking block is inclined away from the first end of the strap, and the side of the locking block opposite to the strap is provided with a slot for placing the limiting member.

[0015] When the limiting member is in the first position, the limiting member disengages from the slot;

[0016] When the limiting member is in the second position, the limiting member is engaged in the slot.

[0017] In some embodiments, the limiting member is a rod and is arranged along the width direction of the strap;

[0018] Both ends of the limiting member are provided with abutment platforms, adapted to abut against the outer wall of the buckle, to restrict the limiting member from moving along the width direction of the strap; and

[0019] The buckle is provided with a first clearance hole for avoiding the limiting member.

[0020] In some embodiments, the buckle is located away from the side of the strap, and a second clearance hole is provided at the corresponding location of the buckle block.

[0021] The present invention also provides a tire pressure monitoring device, comprising:

[0022] The detection component, the display component, and the fixing device provided by any of the above;

[0023] The fixing device is used to secure the detection component to the wheel hub;

[0024] The detection component is used to detect tire pressure and the binding pressure of the fixing device, and transmits the data to the display component;

[0025] The display component is used to display the data detected by the detection component.

[0026] In some embodiments, the detection component includes a body and a mounting base;

[0027] The body is equipped with a pressure sensor suitable for fitting into the wheel hub to detect tire pressure and the binding pressure of the fixing device;

[0028] The fixing base is provided with a through hole for the strap to pass through in order to fix the body to the strap, and the fixing base is provided with a third clearance hole corresponding to the pressure sensor.

[0029] In some embodiments, the mounting base is provided with at least one spring tab on one side adapted to fit against the wheel hub, and the spring tab is inclined away from the body; and

[0030] The fixing base is provided with a fourth clearance hole corresponding to the spring piece.

[0031] In some embodiments, the fixing seat is provided with a baffle to restrict the fixing seat from moving along the width direction of the strap.

[0032] The present invention also provides a monitoring method for a tire pressure monitoring device, used in any of the tire pressure monitoring devices provided above, comprising:

[0033] Preset the initial threshold for binding pressure and the alarm threshold for binding pressure;

[0034] The tire pressure monitoring system is strapped to the wheel hub to monitor the strapping pressure. If the monitored strapping pressure is less than or equal to the initial strapping pressure threshold, the tire pressure monitoring system will emit a warning sound.

[0035] If the detected tasseling pressure is less than or equal to the tasseling pressure alarm threshold while the vehicle is in motion, the tire pressure monitoring system will issue an alarm.

[0036] In some embodiments, the monitoring method, based on the tire pressure monitoring system issuing an alarm if the detected tasseling pressure is less than the tasseling pressure alarm threshold during vehicle operation, includes:

[0037] Preset binding pressure warning threshold;

[0038] If the detected tasseling pressure is greater than the tasseling pressure alarm threshold but less than or equal to the tasseling pressure warning threshold while the vehicle is in motion, the tire pressure monitoring system will issue a warning sound.

[0039] The technical effects of this invention are as follows:

[0040] 1. In this patent, by setting a limiting component, the fixing device can securely fix the tire pressure monitoring device to wheel rims of different sizes, making it difficult to loosen. Simultaneously, users can easily adjust the tightness of the straps and remove or install them by moving the limiting component, making operation very convenient and quick. More importantly, this fixing device does not involve the disassembly or assembly of parts during tightness adjustment and removal, preventing the loss of parts that could affect the performance of the fixing device and the tire pressure monitoring device. Furthermore, users do not need to purchase replacement parts, resulting in low cost.

[0041] 2. In this patent, the locking block is inclined away from the first end of the strap, and a slot for placing a limiting member is provided on the side of the locking block away from the strap. Thus, when the limiting member is engaged in the slot, it presses the locking block firmly, causing it to engage with any adjustment hole. If the strap tends to loosen, the end of the locking block engaging with the adjustment hole will press against the wall of the adjustment hole, preventing the strap from loosening. This significantly improves the fixing effect of the device on the tire pressure monitoring system and effectively prevents damage to the rubber tire and tire pressure monitoring system due to the strap loosening.

[0042] 3. In this patent, by setting a spring piece on the side of the fixing seat that is suitable for fitting the wheel hub, the friction between the fixing seat and the wheel hub is increased when the tire pressure monitoring device is tied to the wheel hub, which prevents the detection component from moving on the surface of the wheel hub. This allows the tire pressure monitoring device to detect the tire pressure and the binding pressure of the fixing device more accurately, and the performance is greatly improved. Attached Figure Description

[0043] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0044] Figure 1 This is a three-dimensional structural diagram of the wheel hub and tire pressure monitor provided by the present invention in one state;

[0045] Figure 2 This is a three-dimensional structural diagram of the wheel hub and tire pressure monitoring device provided by the present invention in another state;

[0046] Figure 3 This is a three-dimensional structural diagram of the tire pressure monitoring device provided by the present invention;

[0047] Figure 4 This is a partial cross-sectional view of the fixing device provided by the present invention when the limiting member is in the first position;

[0048] Figure 5 This is a partial cross-sectional view of the fixing device provided by the present invention when the limiting member is in the second position;

[0049] Figure 6 This is a partial perspective view of the fixing device provided by the present invention;

[0050] Figure 7 This is a partial three-dimensional view of the tire pressure monitoring device provided by the present invention in one state;

[0051] Figure 8 This is a partial perspective view of the tire pressure monitoring device provided by the present invention in another state;

[0052] Figure 9 This is a flowchart of the monitoring method of the tire pressure monitoring device provided by the present invention.

[0053] Explanation of icon numbers:

[0054] 100. Straps; 110. Adjustment hole;

[0055] 200, buckle; 210, receiving space; 211, locking block; 2111, locking slot; 212, limiting component; 2121, abutment platform; 220, first clearance hole; 230, second clearance hole;

[0056] 300. Detection component; 310. Body; 311. Pressure sensor; 320. Mounting base; 321. Through hole; 322. Third clearance hole; 323. Spring piece; 324. Fourth clearance hole; 325. Baffle;

[0057] 400. Wheel hub. Detailed Implementation

[0058] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application can also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0059] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0060] To keep the drawings concise, each figure only schematically shows the parts relevant to the invention, and these do not represent the actual structure of the product. Furthermore, to facilitate understanding, in some figures, only one of components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0061] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0062] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0063] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various components of the invention are relative rather than absolute. These descriptions are appropriate when these components are in the positions shown in the drawings. If the descriptions of the positions of these components change, these directional indications also change accordingly.

[0064] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0065] According to a specific embodiment provided by the present invention, see [link to specific embodiment]. Figures 1 to 9 A fixing device, a tire pressure monitoring device, and a monitoring method are disclosed. The fixing device is suitable for fixing the tire pressure monitoring device and may specifically include a strap 100 having a first end and a second end, and a buckle 200 disposed at the first end of the strap 100. The buckle 200 has a receiving space 210 for the second end of the strap 100 to pass through, and a locking block 211 is disposed within the receiving space 210. The second end of the strap 100 has a plurality of adjustment holes 110, which can selectively engage with the locking block 211 to adjust the length of the second end of the strap 100 passing through the receiving space 210. A limiting member 212 is disposed within the receiving space 210 and can be operably positioned in a first position and a second position. In the first position, the limiting member 212 is separated from the locking block 211; in the second position, the limiting member 212 abuts against the locking block 211 to prevent the second end of the strap 100 from disengaging from the receiving space 210.

[0066] Specifically, when the user secures the tire pressure monitoring device to the wheel hub 400 using the fixing device, first, the limiting member 212 is moved to the first position, separating the limiting member 212 from the locking block 211. Then, the second end of the strap 100 is passed through the receiving space 210 of the buckle 200, and the size of the area enclosed by the strap 100 is adjusted by changing the length of the second end of the strap 100 passing through the receiving space 210, so that the fixing device can be adapted to wheel hubs 400 of different sizes. After adjusting to the appropriate position, the locking block 211 is engaged with the corresponding adjustment hole 110, and the limiting member 212 is moved to the second position, thereby allowing the tire pressure monitoring device to be stably fixed to the wheel hub 400 by the strap 100.

[0067] Conversely, if it is necessary to adjust the tightness of the strap 100, the limiting member 212 can be moved from the second position to the first position first, and then the second end of the strap 100 can be tightened or loosened to change the tightness of the strap 100. After adjusting to the appropriate tightness, the limiting member 212 can be moved back to the second position to complete the adjustment.

[0068] In this embodiment, by setting a limiting member 212, the second end of the strap 100 is prevented from detaching from the receiving space 210, which can effectively prolong the time when the strap 100 loosens due to tire rotation, thereby reducing the possibility of damage to the tire and tire pressure monitoring device due to the loosening of the strap 100, and is highly practical. In addition, the fixing device provided in this embodiment can be well applied to wheel hubs 400 of different sizes, with a wide range of applications, which is conducive to mass production.

[0069] It is worth noting that the fixing device does not involve disassembling or assembling any parts during tension adjustment and disassembly; only the limiting component 212 needs to be moved. This makes operation convenient and quick, and prevents the loss of parts, ensuring the performance of both the fixing device and the tire pressure monitoring system. Furthermore, users do not need to carry replacement parts, resulting in low maintenance costs.

[0070] Specifically, see Figure 4 and Figure 5 The locking block 211 is inclined away from the first end of the strap 100, and the side of the locking block 211 away from the strap 100 is provided with a slot 2111 for placing the limiting member 212. When the limiting member 212 is in the first position, the limiting member 212 is disengaged from the slot 2111; when the limiting member 212 is in the second position, the limiting member 212 is engaged in the slot 2111.

[0071] In this embodiment, the locking block 211 is preferably elastically constructed and has two opposing ends. One end is a fixed end, fixed within the receiving space 210, and the other end is a movable end, suitable for acting on the adjustment hole 110. Thus, when the limiting member 212 is engaged in the locking slot 2111, the limiting member 212 will press the locking block 211 tightly, so that the locking block 211 is engaged with either adjustment hole 110. Conversely, if the locking block 211 tends to disengage from the corresponding adjustment hole 110 due to vibration, the limiting member 212 can also press the locking block 211 tightly, preventing the locking block 211 from disengaging from the adjustment hole 110 and causing the strap 100 to loosen.

[0072] In contrast, in this embodiment, if the strap 100 tends to loosen, the end of the locking block 211 that is in a limiting fit with the adjustment hole 110 will abut against the wall of the adjustment hole 110, preventing the strap 100 from loosening. This greatly improves the fixing effect of the fixing device on the tire pressure monitoring device, effectively prolongs the time when the strap 100 loosens due to tire rotation, and reduces the probability of the rubber tire and the tire pressure monitoring device being damaged due to the strap 100 loosening.

[0073] If the strap 100 tends to tighten, the adjusting hole 110, which is matched with the locking block 211, tends to move toward the second end. At this time, the wall of the adjusting hole 110 will apply pressure to the movable end of the locking block 211, thereby causing the locking block 211 to disengage from the adjusting hole 110 and engage with the adjacent adjusting hole 110 to tighten the strap 100.

[0074] In this way, when tightening the strap 100, the user does not need to move the limiting piece 212 from the second position to the first position, but can directly pull the second end of the strap 100 to make the adjustment.

[0075] Specifically, see Figures 4 to 6 The limiting member 212 is a rod and is arranged along the width direction of the strap 100. At this time, both ends of the limiting member 212 are provided with abutment platforms 2121, suitable for abutting against the outer wall of the buckle 200, to restrict the limiting member 212 from moving along the width direction of the strap 100. Correspondingly, the buckle 200 is provided with a first clearance hole 220 for avoiding the limiting member 212.

[0076] Preferably, the first clearance hole 220 is provided with a locking position at the part corresponding to the slot 2111 to prevent the limiting member 212 from disengaging from the slot 2111 due to vibration when it is in the second position. This improves the limiting effect of the limiting member 212 and allows the tire pressure monitoring device to be more securely fixed to the wheel hub 400 by the fixing device.

[0077] In the above embodiments, see Figure 1 and Figures 3 to 6When the second end of the strap 100 passes through the receiving space 210, it is preferably located on the side of the strap 100 away from the wheel hub 400, so as to facilitate user adjustment and fit the surface of the wheel hub 400 better.

[0078] Specifically, see Figures 4 to 6 The buckle 200 is located on the side opposite to the strap 100, and a second clearance hole 230 is provided at the corresponding position of the locking block 211. On one hand, the second clearance hole 230 provides deformation space for the locking block 211. On the other hand, the user's finger can directly press the locking block 211 through the second clearance hole 230, so that the movable end of the locking block 211 engages with the appropriate adjustment hole 110, and then the limiting member 212 is moved into the slot 2111 to complete the fixation of the tire pressure monitoring device.

[0079] See Figure 2 , Figure 3 , Figure 7 and Figure 8 The present invention also provides a tire pressure monitoring device suitable for tire pressure monitoring of small, medium, and heavy commercial vehicles and engineering vehicles. Specifically, it may include a detection component 300, a display component, and a fixing device provided in any of the above embodiments. The fixing device is used to secure the detection component 300 to the wheel hub 400. The detection component 300 detects the tire pressure and the binding pressure of the fixing device, and transmits the data to the display component. The display component then displays the data detected by the detection component 300, which is more conducive to users' inspection and maintenance of the vehicle and its various parameters.

[0080] As a preferred option, the detection component 300 can detect not only tire pressure and the binding pressure of the fixing device, but also tire temperature, which helps users to further understand the real-time condition of the tire.

[0081] Specifically, see Figure 3 , Figure 7 and Figure 8 The detection component 300 includes a body 310 and a mounting base 320. The body 310 is equipped with a pressure sensor 311 adapted to fit against the wheel hub 400 for detecting tire pressure and the binding pressure of the securing device. The mounting base 320 has a through hole 321 for the strap 100 to pass through, thereby securing the body 310 to the strap 100. The mounting base 320 also has a third clearance hole 322 corresponding to the pressure sensor 311. It is worth noting that the stress sensor and the corresponding third clearance hole 322 should be positioned away from the strap 100.

[0082] The mounting base 320 is preferably made of spring steel, which has good elasticity and good support strength, thus improving the overall strength of the detection component 300.

[0083] In this embodiment, the fixing base 320 and the body 310 are fastened together by fasteners. Specifically, the fixing base 320 extends toward the body 310 with a mounting ear, and both the mounting ear and the body 310 are provided with fastening holes. Fasteners pass through the mounting ear and the fastening holes provided on the body 310 in sequence to fix the fixing base 320 and the body 310 together.

[0084] In actual production, fasteners can be rivets, screws, bolts, etc., which will not be described in detail here, and are all within the protection scope of this invention.

[0085] Preferably, see Figure 3 , Figure 7 and Figure 8 The mounting base 320 is adapted to fit against one side of the wheel hub 400 and is provided with at least one spring piece 323, and the spring piece 323 is inclined in the direction away from the body 310. At this time, the mounting base 320 is provided with a fourth clearance hole 324 corresponding to the spring piece 323.

[0086] In this embodiment, when the tire pressure monitoring device is secured to the wheel hub 400 by the fixing device, the spring 323 of the fixing seat 320 and the pressure sensor 311 on the body 310 preferentially contact the wheel hub 400. The body 310 can determine whether the strap 100 is securely installed based on the data collected by the pressure sensor 311. When the strap 100 is securely installed, the wheel hub 400 applies force to the spring 323, increasing the friction between the fixing seat 320 and the wheel hub 400, reducing the loosening of the strap 100 caused by vibration when the wheel hub 400 rotates, and effectively extending the time before the strap 100 loosens. At the same time, increasing the friction between the fixing seat 320 and the wheel hub 400 can also prevent the detection component 300 from moving on the surface of the wheel hub 400, allowing the tire pressure monitoring device to more accurately detect tire pressure and the binding pressure of the fixing device, thus greatly improving its performance.

[0087] In this embodiment, the vertical distance between the end of the spring piece 323 that is inclined away from the body 310 and the fixing seat 320 should not be greater than 3mm.

[0088] Further, see Figure 3 , Figure 7 and Figure 8 The fixing seat 320 is provided with a baffle 325 to limit the movement of the fixing seat 320 along the width direction of the strap 100, which further improves the detection accuracy of the tire pressure monitoring device and enhances its performance. At the same time, the baffle 325 can also prevent the strap 100 from loosening due to misalignment during passage.

[0089] In this embodiment, the fixing base 320 is preferably plate-shaped. In this case, the baffle 325 can not only restrict the position of the strap 100, but also support the body 310 and separate the body 310 from the spring piece 323 by a certain distance, forming an active space for the spring piece 323 to deform.

[0090] In one specific embodiment, the body 310 may also be equipped with a temperature sensor to detect tire temperature, which helps users to have a more comprehensive understanding of the real-time condition of the tires, thereby enabling them to better inspect and maintain the vehicle and its various parameters.

[0091] See Figure 9 The present invention also provides a monitoring method for a tire pressure monitoring device, used in any of the tire pressure monitoring devices provided in the above embodiments, which may specifically include the following steps:

[0092] Preset the initial threshold for binding pressure and the alarm threshold for binding pressure;

[0093] The tire pressure monitoring system is strapped to the wheel hub 400 to monitor the strapping pressure. If the monitored strapping pressure is less than or equal to the initial strapping pressure threshold, the tire pressure monitoring system will emit a warning sound.

[0094] If the detected tasseling pressure is less than or equal to the tasseling pressure alarm threshold while the vehicle is in motion, the tire pressure monitoring system will issue an alarm.

[0095] As an option, users can also preset the tacking pressure warning threshold. In this way, if the detected tacking pressure is greater than the tacking pressure alarm threshold but less than or equal to the tacking pressure warning threshold while the vehicle is in motion, the tire pressure monitor will sound a warning.

[0096] Furthermore, users can preset a threshold for excessive binding pressure. When the user binds the tire pressure monitor to the wheel hub 400, if the detected binding pressure is greater than the excessive binding pressure threshold, the tire pressure monitor will issue an alarm.

[0097] Specifically, see Figure 9 The user-preset initial binding pressure threshold range is 95-105N, the excessive binding pressure threshold is 120N, the binding pressure warning threshold is 80N, and the binding pressure alarm threshold is 60N.

[0098] When the user straps the tire pressure monitoring system (TPMS) to the wheel hub (400), if the detected strapping pressure is within the range of 95-105 N, then the locking torque is 10 N·m, indicating that the TPMS sensor is securely installed. If the detected strapping pressure is below 95 N, the TPMS will emit a warning sound, and the user should retighten the strap (100) after hearing the warning sound.

[0099] When the binding pressure exceeds 120N after locking, which is above the excessive binding pressure threshold, the tire pressure monitoring system will sound an alarm. After hearing the alarm, the user should loosen the binding strap 100 to prevent it from breaking due to excessive stress.

[0100] During vehicle operation, the tire pressure monitoring system (TPMS) may loosen slightly. At this time, the pressure sensor 311 will detect a decrease in the binding pressure. When the binding pressure drops to 80N, the TPMS will sound an alarm, indicating to the user that the tire pressure monitoring system (TPMS) has begun to loosen. When the binding pressure drops to 60N, the TPMS will sound an alarm, indicating to the user that the tire pressure monitoring system (TPMS) has loosened and the tire pressure monitoring system (TPMS) must be re-taped.

[0101] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0102] It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A fixing device for a tire pressure monitor, characterized by comprising: include: A strap, having a first end and a second end; A buckle is provided at the first end of the strap and has a receiving space for the second end of the strap to pass through; The receiving space is provided with a locking block, which is inclined away from the first end of the strap and has a locking groove on the side of the locking block away from the strap; and the second end of the strap is provided with a plurality of adjustment holes, which can be selectively matched with the locking block to adjust the length of the second end of the strap passing through the receiving space. The accommodating space is provided with a limiting member, which is placed in the slot and can be operably positioned in a first position and a second position. When the limiting member is in the first position, the limiting member is disengaged from the slot; when the limiting member is in the second position, the limiting member is engaged in the slot to prevent the second end of the strap from disengaging from the receiving space. The limiting member is a rod and is arranged along the width direction of the strap; Both ends of the limiting member are provided with abutment platforms, adapted to abut against the outer wall of the buckle, to restrict the limiting member from moving along the width direction of the strap; and The buckle is provided with a first clearance hole for avoiding the limiting member.

2. The fixing device according to claim 1, characterized in that, The buckle is located on the side opposite to the strap, and a second clearance hole is provided at the corresponding buckle block.

3. A tire pressure monitoring device, characterized in that, include: The detection component, the display component, and the fixing device as described in claim 1 or 2; The fixing device is used to secure the detection component to the wheel hub; The detection component is used to detect tire pressure and the binding pressure of the fixing device, and transmits the data to the display component; The display component is used to display the data detected by the detection component.

4. The tire pressure monitoring device according to claim 3, characterized in that, The detection component includes a body and a mounting base; The body is equipped with a pressure sensor suitable for fitting into the wheel hub to detect tire pressure and the binding pressure of the fixing device; The fixing base is provided with a through hole for the strap to pass through in order to fix the body to the strap, and the fixing base is provided with a third clearance hole corresponding to the pressure sensor.

5. The tire pressure monitoring device according to claim 4, characterized in that, The mounting base is adapted to have at least one spring tab on one side that fits against the wheel hub, and the spring tab is inclined away from the body. The fixing base is provided with a fourth clearance hole corresponding to the spring piece.

6. The tire pressure monitoring device according to claim 4 or 5, characterized in that, The fixing seat is provided with a baffle to restrict the fixing seat from moving along the width direction of the strap.

7. A method for monitoring tire pressure using a tire pressure monitoring device, used in any one of claims 3-6, characterized in that, include: Preset the initial threshold for binding pressure and the alarm threshold for binding pressure; The tire pressure monitoring system is strapped to the wheel hub to monitor the strapping pressure. If the monitored strapping pressure is less than or equal to the initial strapping pressure threshold, the tire pressure monitoring system will emit a warning sound. If the detected tasseling pressure is less than or equal to the tasseling pressure alarm threshold while the vehicle is in motion, the tire pressure monitoring system will issue an alarm.

8. The monitoring method according to claim 7, characterized in that, include: Preset binding pressure warning threshold; If the detected tasseling pressure is greater than the tasseling pressure alarm threshold but less than or equal to the tasseling pressure warning threshold while the vehicle is in motion, the tire pressure monitoring system will issue a warning sound.

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