Buzzing tire pressure alarm installed on air tap

Abstract

The invention provides a buzzing tire pressure alarm installed on an air tap, and relates to the technical field of bicycle tire pressure alarms, the buzzing tire pressure alarm comprises an upper shell assembly, an air tap connecting assembly is arranged at the joint of the upper shell assembly, and the air tap connecting assembly is used for being fixedly connected with the tire air tap; the air nozzle connecting assembly comprises a connecting nozzle, a third connecting thread and an air inlet nozzle, the upper shell assembly is used for being connected, fixed and detached with the air nozzle connecting assembly, the upper shell assembly comprises an upper shell body, anti-skid lines and a first connecting thread, and the pressure sensor can accurately detect the input air pressure value. The air pressure of the tire can be monitored in real time in cooperation with data acquisition, conversion and judgment logic of the microprocessor, an alarm mechanism can be quickly triggered when the air pressure is lower than a safety threshold value, a rider can know the air pressure condition of the tire in time, and potential safety hazards such as increase of riding resistance, excessive abrasion of the tire and tire burst caused by insufficient air pressure are effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of bicycle tire pressure alarm, and in particular to a buzzer tire pressure alarm installed on a valve. Background Art

[0002] In modern bicycle riding scenarios, the appropriateness of tire pressure plays a vital role in riding experience and safety. With the continuous development of bicycle technology and the gradual improvement of people's requirements for riding quality, the demand for accurate monitoring and timely alarm of tire pressure has become increasingly prominent.

[0003] In traditional bicycle riding, riders can only rely on experience or regular manual inspection to determine whether the tire pressure is sufficient.

[0004] However, this method has many disadvantages. On the one hand, empirical judgment lacks accuracy. Different riding conditions, loads, tire types and other factors will affect the appropriate air pressure value. It is difficult to ensure that the tire is always in the best air pressure state based on subjective feeling alone. On the other hand, manual inspection is time-consuming and laborious, and it is impossible to detect the changes in air pressure in real time during riding. Once there is an emergency such as a sudden drop in tire pressure during riding, such as a slow leak caused by a puncture from a sharp object, it is difficult for the rider to discover it in time. This will not only increase the resistance of riding, affect the comfort and efficiency of riding, but may also cause safety accidents due to excessive tire wear or even a blowout, endangering the personal safety of the rider.

[0005] Therefore, we propose a buzzer tire pressure alarm installed on the air nozzle. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings existing in the prior art. In modern bicycle riding, tire pressure is very important. The traditional method of relying on experience or manually checking the air pressure has obvious disadvantages, is inaccurate and cannot be monitored in real time, which can easily cause safety problems.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A buzzer tire pressure alarm installed on a gas nozzle, comprising an upper shell component,

[0009] The connection of the upper shell assembly is provided with a gas nozzle connection assembly.

[0010] The air nozzle connection assembly is used to connect and fix with the tire air nozzle, and the air nozzle connection assembly includes a connection nozzle, a third connection thread and an air inlet nozzle.

[0011] The upper shell component is used to connect, fix and disassemble with the air nozzle connection component, and the upper shell component includes an upper shell body, anti-slip grooves and a first connecting thread.

[0012] A main board is provided inside the air nozzle connection assembly, a pressure sensor is installed at the bottom of the main board, a button battery is provided above the main board, a mounting seat is installed on the top of the button battery, a buzzer body is provided on the top of the mounting seat, two porous plates are installed above the buzzer body, a waterproof and sound-permeable membrane is provided between the two porous plates, and a microprocessor is also installed on the main board.

[0013] As a preferred solution of the present invention, the air nozzle connection assembly also includes a connecting plate, a mounting shell and a second connecting thread. The mounting shell is installed on the top of the connecting plate, and the second connecting thread is provided on the outer surface of the mounting shell near the bottom.

[0014] As a preferred solution of the present invention, a connecting nozzle is installed at the bottom of the connecting plate, a third connecting thread is provided on the inner wall of the connecting nozzle near the bottom, and an air inlet nozzle is provided inside the connecting nozzle.

[0015] As a preferred solution of the present invention, anti-slip grooves are provided on the outer side wall of the upper shell body near the top, and a first connecting thread is provided inside the upper shell body near the bottom.

[0016] As a preferred solution of the present invention, the upper shell body of the upper shell assembly is threadedly connected to the second connecting thread of the air nozzle connecting assembly mounting shell through a first connecting thread, the air nozzle connecting assembly is interconnected with the tire air nozzle through a third connecting thread of the connecting nozzle, and the air inlet nozzle is used for gas input.

[0017] As a preferred solution of the present invention, the pressure sensor is electrically connected to the mainboard, and the pressure sensor is installed on the air inlet nozzle to detect the input air pressure value.

[0018] As a preferred solution of the present invention, the microprocessor is used to collect the value of the pressure sensor and convert the collected signal, which is then judged by the built-in judgment logic and triggers the corresponding alarm mechanism.

[0019] As a preferred solution of the present invention, a split fixing plate is further provided between the pressure sensor and the connecting plate, and the split fixing plate and the pressure sensor are fixed by sealing bolts.

[0020] As a preferred solution of the present invention, the button battery and the buzzer body are both electrically connected to the mainboard.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] In the present invention, firstly, in terms of the connection method, the threaded connection between the air valve connecting assembly and the tire air valve and the upper shell assembly makes the device easy to install and disassemble, which is convenient for the rider to easily replace the battery or perform maintenance when necessary, thereby improving the convenience and flexibility of use.

[0023] Secondly, the pressure sensor can accurately detect the input air pressure value, and cooperate with the microprocessor to collect, convert and judge the data logic, so as to monitor the tire pressure in real time and quickly trigger the alarm mechanism when the air pressure is lower than the safety threshold, so that the rider can understand the tire pressure status in time, effectively avoiding the safety hazards such as increased riding resistance, excessive tire wear and tire blowout caused by insufficient air pressure, and ensuring the safety and comfort of riding.

[0024] Finally, the waterproof and sound-permeable membrane and porous plate installed above the buzzer can not only effectively prevent water and protect the internal components from rain erosion and extend the service life, but also ensure that the alarm sound of the buzzer is clear and audible, and can promptly remind riders to pay attention to tire pressure issues even in complex riding environments, greatly improving the practicality and reliability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the main structure of a buzzer tire pressure alarm installed on a gas nozzle provided by the present invention;

[0026] Figure 2 A schematic diagram of the main body structure of a buzzer tire pressure alarm installed on a gas nozzle provided by the present invention when viewed from above;

[0027] Figure 3 A schematic diagram of an upper shell body and a mounting shell of a buzzer tire pressure alarm installed on a gas nozzle provided by the present invention;

[0028] Figure 4 A schematic diagram of the installation position of a first connecting thread of a buzzer tire pressure alarm installed on a gas nozzle provided by the present invention;

[0029] Figure 5 A schematic diagram of the main body explosion of a buzzer tire pressure alarm installed on a gas nozzle provided by the present invention;

[0030] Figure 6 A schematic cross-sectional view of the main body of a buzzer tire pressure alarm installed on a gas nozzle provided by the present invention;

[0031] Figure 7 A system block diagram of a buzzer tire pressure alarm installed on a gas nozzle provided by the present invention.

[0032] Legend:

[0033] 11. Upper housing body; 12. Anti-slip pattern; 13. First connecting thread;

[0034] 21. Connecting plate; 22. Mounting housing; 23. Second connecting thread; 24. Connecting nozzle; 25. Third connecting thread; 26. Air inlet nozzle;

[0035] 3. Split the fixed plate;

[0036] 5. Sealing bolts;

[0037] 6. Pressure sensor;

[0038] 7. Motherboard; 71. Microprocessor;

[0039] 8. Button battery;

[0040] 9. Mounting seat;

[0041] 10. Buzzer body;

[0042] 14. Multi-hole plate;

[0043] 15. Waterproof and sound-permeable membrane. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0045] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to related references, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0046] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0048] Example

[0049] like Figure 1-7 As shown, the present invention provides a technical solution: in terms of connection method, the tire pressure buzzer alarm of the present invention exhibits convenience and stability through a carefully designed threaded connection between the air valve connecting assembly, the tire air valve and the upper shell assembly.

[0050] The connecting nozzle 24 in the air valve connecting assembly has a third connecting thread 25 precisely set on its inner wall near the bottom. It adopts standard and fine thread specifications and is highly compatible with the thread structure of the tire air valve. The thread pitch, tooth angle and other parameters have been strictly designed and tested to ensure that there will be no slipping or loosening even when subjected to greater pressure and torque.

[0051] This threaded connection utilizes the tight engagement characteristics between the threads. During actual riding, no matter how complex and harsh the road conditions are, such as bumpy country roads, rugged and bumpy mountain trails, or frequent steering and braking when driving at high speeds, it can ensure that the connection parts always remain stable without any looseness or displacement.

[0052] This not only ensures the airtightness of gas transmission, allowing the gas in the tire to stably and accurately enter the area where the pressure sensor 6 is located, providing a reliable gas sample for subsequent air pressure measurement, but also lays a solid foundation for the stable operation of the entire device, avoiding measurement errors or device failures caused by loose connections.

[0053] The first connecting thread 13 near the bottom of the upper shell body 11 of the upper shell assembly cooperates with the second connecting thread 23 near the bottom of the outer surface of the air valve connection assembly mounting shell 22. When maintenance operations are required on the device, such as replacing the button battery 8, the rider only needs to use simple daily tools, such as a wrench or a screwdriver (if there is an auxiliary fixing structure), and rotate it according to the normal rotation direction of the thread to easily complete the disassembly and installation process of the upper shell assembly.

[0054] This design fully takes into account the actual usage scenarios of riders. Riders do not need to have complex professional skills or use special auxiliary equipment, which greatly reduces the usage threshold and maintenance costs. The device is extremely convenient and flexible in actual usage scenarios, and can meet the rider's maintenance needs at any time, ensuring that the tire pressure buzzer alarm is always in good working condition, providing continuous and reliable protection for cycling safety.

[0055] As the core component of tire pressure monitoring, the pressure sensor 6 is installed on the air intake nozzle 26 and realizes accurate measurement of air pressure based on the advanced and precise principle of piezoresistive effect. This process involves physical changes at the microscopic level and precise electronic signal conversion.

[0056] When the gas in the tire enters the sensing area of ​​the pressure sensor 6 through the air inlet nozzle 26 , the gas molecules will exert a continuous and stable pressure on the sensitive elements inside the sensor.

[0057] This pressure causes a change in the physical properties of the sensitive element, which manifests itself as a corresponding change in resistance value.

[0058] There is an accurate linear relationship between the change in resistance and the applied air pressure, which is the result of precise design and calibration by researchers in the laboratory using high-precision calibration equipment and complex algorithms. Through this linear relationship, the pressure sensor 6 can accurately convert air pressure information into electrical signals and transmit them to the mainboard 7 quickly and stably. The transmission line uses shielded wires, which effectively reduces the impact of external electromagnetic interference on the signal and ensures the accuracy and stability of the signal.

[0059] The pressure sensor 6 adopts the MPS20N0040D miniature pressure sensor 6, which is manufactured using advanced micro-electromechanical system (MEMS) technology and has high precision, high sensitivity and good stability.

[0060] The sensor can accurately convert the pressure inside the tire into a linearly varying electrical signal output. Its measurement range is usually 0-40psi (pounds per square inch), which meets the conventional air pressure range requirements of bicycle tires, and the accuracy can reach ±1psi, which can provide reliable pressure data for the system.

[0061] It has a compact package that can be easily installed near the valve of a bicycle tire. Its pins are clearly defined, including a power pin (VDD), a ground pin (GND), and a signal output pin (OUT), making it easy to connect to other circuit components.

[0062] The microprocessor 71 on the main board 7 is an important component of the entire system. It is equipped with a high-precision analog-to-digital conversion module. The module uses advanced integrated circuit technology and can convert the analog electrical signals received from the pressure sensor 6 into digital signals at extremely high speed and accuracy to facilitate subsequent complex and efficient data processing. The microprocessor 71 is pre-burned with a set of judgment logic programs that have been verified by a large amount of experimental data and optimized for actual riding scenarios.

[0063] The microprocessor 71 (MCU) adopts the STM8S103F3P6 single-chip microcomputer, which is based on the STM8 core and has rich on-chip resources and low power consumption characteristics. It integrates a 16MHz high-speed internal clock and can quickly process the data transmitted by the pressure sensor 6 to ensure the timely response of the system.

[0064] The single-chip microcomputer has multiple general input and output (GPIO) pins, among which PA1 can be used as an analog input pin to accurately receive the analog signal of the pressure sensor 6, and pins such as PB0 can be used as digital output pins to flexibly control external devices such as the buzzer body 10. At the same time, it also has a certain storage capacity and computing power, can store preset safety air pressure values, and perform operations such as data comparison and logical judgment to realize the intelligent control function of the system.

[0065] In the circuit connection between the pressure sensor 6 and the microprocessor, the power pin (VDD) of the pressure sensor 6 is connected to the power pin (VDD) of the MCU through a shorter wire, ensuring that the connection is tight and there is no looseness to ensure that the pressure sensor 6 can obtain a stable power supply.

[0066] Connect the ground pin (GND) of the pressure sensor 6 to the ground pin (GND) of the MCU with a wire so that the sensor and the MCU share a common ground, providing a stable reference potential for signal transmission. Also, the reliability of the ground connection must be ensured. Multi-point grounding can be used to reduce ground resistance and ground noise.

[0067] Connect the signal output pin (OUT) of the pressure sensor 6 to the analog input pin PA1 of the MCU through a wire. During the connection process, pay attention to the shielding of the wire to reduce the impact of external electromagnetic interference on the signal. At the same time, connect a 10kΩ pull-up resistor between the signal output pin (OUT) and the power pin (VDD). One end of the resistor is connected to the OUT pin and the other end is connected to the VDD pin. You can use a plug-in resistor or a chip resistor for welding connection to ensure that the resistance value of the resistor is accurate and the connection is firm.

[0068] During riding, the microprocessor 71 continuously collects digital signals from the pressure sensor 6 at an extremely high frequency (for example, hundreds of times per second), and compares it with the preset safety threshold in real time. Once the air pressure value is detected to be lower than the safety threshold, the microprocessor 71 will immediately start the preset alarm program. Its internal clock frequency and instruction execution speed ensure that signal processing and alarm triggering are completed in a very short time. It will send a trigger signal to the buzzer body 10, causing the buzzer body 10 to quickly emit an alarm sound.

[0069] The buzzer body 10 adopts the SFM-27 small electromagnetic active buzzer with an operating voltage range of 3-5V, which is very suitable for the system powered by a 3.7V lithium button battery 8. It has an internal oscillation circuit and only needs to apply a suitable DC voltage to generate a clear, loud and relatively stable frequency sound signal, ensuring that the rider can be effectively reminded even in a noisy outdoor environment.

[0070] The pins of the buzzer body 10 are two-pin type, usually the long pin is the positive pole and the short pin is the negative pole. This simple pin structure is convenient for connecting to the circuit. When connecting, it is necessary to connect to the digital output pin of the MCU through a 220Ω current limiting resistor to prevent excessive current from damaging the buzzer body 10 and the MCU pin.

[0071] In the circuit connection with the microprocessor 71, take a 220Ω current limiting resistor, connect one end of it to the positive pole of the buzzer body 10 through a wire, and connect the other end to the digital output pin PB0 of the MCU. When connecting, pay attention to whether the power of the resistor meets the requirements. Generally, a 1 / 4W or 1 / 8W resistor can be selected to ensure that it will not be damaged due to overheating during long-term operation.

[0072] Connect the negative pole of the buzzer body 10 to the power ground (GND) through a wire to form a complete current loop to ensure that the buzzer body 10 can sound normally under the control of the MCU. When connecting the wire of the buzzer body 10, choose a wire of appropriate thickness, generally 0.3mm 2 -0.5mm 2 A single-core wire is used to ensure the stability and reliability of current transmission. At the same time, attention should be paid to the installation position of the buzzer body 10 to avoid loosening or damage of the pins due to vibration or collision.

[0073] The pressure sensor 6 installed on the valve stem of the bicycle tire can accurately sense the position of the tire pressure. When the internal air pressure of the tire changes, the pressure sensor 6 will convert it into a corresponding electrical signal according to the size of the air pressure, and output it to the PA1 analog input pin of the MCU through the OUT pin. The safe air pressure value range of the bicycle tire is pre-programmed inside the MCU, such as 20-30psi (the specific value can be adjusted according to the actual requirements of the bicycle tire). The MCU will periodically sample and convert the analog signal of the PA1 pin, convert it into a corresponding digital air pressure value, and compare it with the preset safe air pressure range.

[0074] When the MCU determines that the air pressure value corresponding to the received signal from the pressure sensor 6 is lower than the lower limit of the safety range (such as 20psi), the MCU will immediately set the digital output pin PB0 connected to the buzzer body 10 to a high level. At this time, the current flows from the positive pole of the power supply (VCC) through the 220Ω current limiting resistor into the positive pole of the buzzer body 10, and then flows back from the negative pole of the buzzer body 10 to the power ground (GND), so that the buzzer body 10 is powered on and emits a continuous alarm sound to remind the rider that the tire pressure is too low and needs to be inflated.

[0075] While the alarm is sounded, the MCU will continue to monitor the signal from the pressure sensor 6. Once it detects that the air pressure has returned to a safe range, the MCU will set the PB0 pin to a low level and stop the alarm of the buzzer body 10. In this way, the system can monitor the air pressure of the bicycle tire in real time and accurately, and sound an alarm in time when the air pressure is abnormal, thereby providing the rider with reliable tire pressure monitoring and alarm services to ensure riding safety and comfort.

[0076] This detailed designed circuit has the characteristics of simple structure, low cost, easy installation and maintenance, and is very suitable for application on bicycles, providing cyclists with a practical tire pressure monitoring solution.

[0077] In principle, when the air pressure is insufficient, the physical form of the tire will change significantly. According to Hooke's law in physics and the elastic mechanics model of the tire, the reduction in air pressure will lead to an increase in the contact area between the tire and the ground. According to the friction formula, the friction is proportional to the contact area, which leads to a significant increase in riding resistance. The rider needs to consume more physical strength to maintain the same riding speed, thereby reducing riding efficiency. If the tire is ridden for a long time under insufficient air pressure, the tire wall will be subjected to greater pressure, and the friction with the ground will also be aggravated, which will accelerate the wear of the tire and shorten the service life of the tire. More seriously, too low air pressure will cause the internal structure of the tire to be subjected to excessive stress, greatly increasing the risk of tire blowout. Once a tire blows out, the rider is likely to lose balance, thereby endangering personal safety. The tire pressure buzzer alarm of the present invention can notify the rider as soon as the air pressure is abnormal through accurate pressure detection and timely alarm mechanism, so that the rider can take measures such as inflation in time, effectively avoiding the above-mentioned series of problems caused by insufficient air pressure, effectively ensuring the safety and comfort of riding, and providing reliable safety protection for the rider's travel.

[0078] The button battery 8 serves as the power supply unit of the entire device. It can provide continuous and stable power output for the tire pressure buzzer alarm in a limited space. Its stable power supply ensures that key components such as the pressure sensor 6, microprocessor 71, buzzer body 10 can continue to work normally, and the accuracy and reliability of monitoring and alarm will not be affected by power fluctuations or interruptions.

[0079] During the operation of the entire device, the button battery 8 consistently provides stable power to each component, so that the pressure sensor 6 can accurately measure the air pressure, the microprocessor 71 can quickly and accurately process data and determine the air pressure status, and the buzzer body 10 can promptly issue an alarm when needed, thereby ensuring the stable operation of the entire system.

[0080] At the same time, the waterproof and sound-permeable membrane 15 and the porous plate 14 structure arranged above the buzzer body 10 improve the performance of the product in many aspects, providing a strong guarantee for its reliable operation in a complex and changeable riding environment. This is a perfect combination of material science and acoustic principles.

[0081] The waterproof and sound-permeable membrane 15 is made of special polymer materials. Its microstructure has a large number of carefully designed tiny pores. The sizes of these pores have been precisely calculated and optimized, utilizing the size difference between water molecules and air molecules and the wave characteristics of sound propagation. It can allow sound signals to pass smoothly and effectively block the intrusion of water molecules.

[0082] When it rains or a vehicle passes through a flooded section of road, water molecules cannot pass through these tiny pores due to their larger molecular size and are effectively blocked outside the buzzer body 10, avoiding problems such as circuit short circuits and component corrosion caused by water contact, greatly extending the service life of internal components and ensuring that the buzzer body 10 can work normally under various severe weather conditions.

[0083] The porous plate 14 further optimizes the sound propagation effect. Its porous structure can scatter and enhance the sound emitted by the buzzer body 10. This is based on the diffraction and interference principles in acoustics. When the buzzer body 10 emits an alarm, the sound waves will be reflected, refracted and interfered in the pores of the porous plate 14, so that the sound can be propagated to the surrounding more evenly, and to a certain extent, the loudness and clarity of the sound are enhanced. In this way, even in a complex riding environment, such as a noisy street, surrounded by various car engine sounds, horn sounds, and pedestrian noises, or in the suburbs with strong winds and serious interference from the whistling wind, the alarm sound can still be clearly audible, which will attract the attention of the rider in time and ensure that the rider will not miss the alarm information of abnormal tire pressure due to interference from the external environment. The practicality and reliability of the product are greatly improved, so that it can work stably and reliably under various harsh riding conditions, and protect the safety of the rider.

[0084] The working process of the entire tire pressure buzzer alarm is as follows:

[0085] First, after the device is installed, the gas in the tire enters the area where the pressure sensor 6 is located through the air inlet nozzle 26 of the air nozzle connecting assembly. The pressure sensor 6 converts the air pressure into an electrical signal based on the piezoresistive effect, and transmits it to the microprocessor 71 on the main board 7 with extremely low signal attenuation through a carefully designed shielded transmission line.

[0086] After the analog-to-digital conversion module of the microprocessor 71 converts the received analog electrical signal into a digital signal, it continuously compares it with the preset safety air pressure threshold at an extremely high frequency. During riding, if the air pressure value always remains within the safety threshold range, the system maintains a normal monitoring state and does not trigger the alarm mechanism. The microprocessor 71 is in a low-power standby mode and only wakes up periodically for data collection and comparison to save energy.

[0087] Once the air pressure is lower than the safety threshold due to various reasons (such as leakage, etc.), the microprocessor 71 immediately switches from standby mode to working mode, starts the alarm program, and sends a trigger signal to the buzzer body 10. After receiving the signal, the buzzer body 10 starts working and sounds an alarm. At the same time, due to the waterproof and sound-permeable membrane 15 and the porous plate 14 structure above the buzzer body 10, the alarm sound can be clearly transmitted in the surrounding environment and can be heard by the rider in time even under harsh riding conditions.

[0088] When the rider hears the alarm, the tire can be checked and inflated in time. If the device needs maintenance, such as replacing the button battery 8, the rider can use simple tools and the threaded connection structure between the air nozzle connecting assembly and the upper shell assembly to easily disassemble the upper shell assembly, and reinstall it after maintenance so that the device can continue to work normally, thereby realizing real-time and accurate monitoring of the bicycle tire pressure and timely alarm, effectively ensuring the safety and comfort of riding.

[0089] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A buzzer tire pressure alarm installed on a valve, characterized in that: including an upper housing assembly, The connection of the upper shell assembly is provided with a gas nozzle connection assembly. The air nozzle connection assembly is used to be connected and fixed to the tire air nozzle, and the air nozzle connection assembly comprises a connection nozzle (24), a third connection thread (25) and an air inlet nozzle (26). The upper shell component is used for connection, fixation and disassembly with the air nozzle connection component, and the upper shell component comprises an upper shell body (11), anti-slip grooves (12) and a first connecting thread (13). A main board (7) is provided inside the air nozzle connection assembly, a pressure sensor (6) is installed at the bottom of the main board (7), a button battery (8) is provided above the main board (7), a mounting seat (9) is installed on the top of the button battery (8), a buzzer body (10) is provided on the top of the mounting seat (9), two porous plates (14) are installed above the buzzer body (10), a waterproof sound-permeable membrane (15) is provided between the two porous plates (14), and a microprocessor (71) is also installed on the main board (7).

2. The buzzer tire pressure alarm installed on the air nozzle according to claim 1, characterized in that: The air nozzle connection assembly also includes a connection plate (21), a mounting shell (22) and a second connection thread (23); the mounting shell (22) is mounted on the top of the connection plate (21); and the second connection thread (23) is provided on the outer surface of the mounting shell (22) near the bottom.

3. The buzzer tire pressure alarm installed on the air nozzle according to claim 2, characterized in that: A connecting nozzle (24) is installed at the bottom of the connecting plate (21), a third connecting thread (25) is provided on the inner wall of the connecting nozzle (24) near the bottom, and an air inlet nozzle (26) is provided inside the connecting nozzle (24).

4. The buzzer tire pressure alarm installed on the air nozzle according to claim 3, characterized in that: An anti-slip groove (12) is provided on the outer side wall of the upper shell body (11) near the top, and a first connecting thread (13) is provided inside the upper shell body (11) near the bottom.

5. The buzzer tire pressure alarm installed on the air nozzle according to claim 4, characterized in that: The upper shell body (11) of the upper shell assembly is threadedly connected to the second connecting thread (23) of the air nozzle connecting assembly mounting shell (22) via a first connecting thread (13); the air nozzle connecting assembly is interconnected with the tire air nozzle via a third connecting thread (25) of the connecting nozzle (24); and the air inlet nozzle (26) is used for gas input.

6. The buzzer tire pressure alarm installed on the air nozzle according to claim 5, characterized in that: The pressure sensor (6) is electrically connected to the main board (7), and the pressure sensor (6) is mounted on the air inlet nozzle (26) to detect the input air pressure value.

7. The buzzer tire pressure alarm installed on the air nozzle according to claim 6, characterized in that: The microprocessor (71) is used to collect the value of the pressure sensor (6), convert the collected signal, and then make a judgment through the built-in judgment logic, and trigger the corresponding alarm mechanism.

8. The buzzer tire pressure alarm installed on the air nozzle according to claim 7, characterized in that: A split fixing plate (3) is also provided between the pressure sensor (6) and the connecting plate (21), and the split fixing plate (3) and the pressure sensor (6) are fixed via sealing bolts (5).

9. The buzzer tire pressure alarm installed on the air nozzle according to claim 8, characterized in that: The button battery (8) and the buzzer body (10) are both electrically connected to the main board (7).

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