Two-way bottled liquefied petroleum gas safety alarm cut-off device

Abstract

The invention relates to the technical field of liquefied petroleum gas safety protection equipment, in particular to a two-way bottled liquefied petroleum gas safety alarm cut-off device which comprises a main machine, an electricity storage bin, a pipeline and a ball valve. Power transmission and state induction are integrated in the same assembly, and the rotating ring and the limiting frame are matched in a rotating mode to guarantee the stability of power transmission and the reliability of structure limiting; meanwhile, the control circuit board is matched with at least two sensors and is in linkage with induction contacts on the two sides of the rotating ring, the full-opening state, the full-closing state and the half-opening state of the ball valve can be accurately recognized, the working state of the valve can be fed back in real time, the problems of valve clamping stagnation, not-in-place transmission and the like can be found in time, the hidden danger of liquefied petroleum gas leakage caused by half-opening of the valve is avoided, and the service life of the valve is prolonged. Therefore, the control accuracy and the use safety of the device are improved, the integrated assembly design has the function of simplifying the internal structure of the host, the matching error between parts is reduced, and therefore the device is convenient to assemble and maintain.

Description

Technical Field

[0001] This invention relates to the field of liquefied petroleum gas safety protection equipment, and in particular to a two-way bottled liquefied petroleum gas safety alarm and shut-off device. Background Technology

[0002] Bottled liquefied petroleum gas is widely used in residential and small-scale commercial applications, and the reliability of its safety protection equipment is directly related to its safety during use.

[0003] Currently, most liquefied petroleum gas (LPG) pipelines use electromagnetic shut-off valves as safety protection components. These valves rely on sealing rings for sealing, but some LPG on the market contains corrosive gases. Long-term use can cause corrosion and aging of the sealing rings, compromising the pipeline's sealing performance and increasing the risk of LPG leaks, posing a significant safety hazard. Furthermore, traditional LPG safety shut-off devices are limited in function, only monitoring gas leaks and unable to detect changes in ambient temperature and humidity. When a fire occurs in the operating environment causing a sudden temperature rise, they cannot trigger the shut-off action in time, resulting in insufficient comprehensiveness and timeliness of protection, failing to meet the safety requirements of actual use.

[0004] Based on the above background, a two-way bottled liquefied petroleum gas safety alarm and shut-off device is proposed to solve the problem. Summary of the Invention

[0005] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and other accompanying drawings.

[0006] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a two-way bottled liquefied petroleum gas safety alarm and shut-off device.

[0007] To achieve the above objectives, the technical solution of the present invention is: a two-way bottled liquefied petroleum gas safety alarm and shut-off device, comprising: a main unit, a storage tank, a pipeline, and a ball valve. The storage tank is connected to the main unit, and a ball valve is installed inside the pipeline. The main unit is installed on the pipeline and is used to control the rotation of the ball valve.

[0008] In some embodiments, the host is equipped with a micro motor, a speed reduction assembly, and an inductive transmission assembly, and the micro motor is connected to the inductive transmission assembly through the speed reduction assembly.

[0009] In some embodiments, the reduction assembly includes a pinion, a first large gear, a second large gear, and a third large gear. The pinion is mounted on the drive rod of the micro motor and meshes with the first large gear. The first large gear, the second large gear, and the third large gear drive each other in sequence.

[0010] In some embodiments, the inductive transmission assembly includes a control circuit board, a limit frame, a rotating ring, a rotating seat, a connecting plate, and inductive contacts. The rotating ring is rotatably mounted on the limit frame, and the rotating seat is connected to the rotating ring through the connecting plate. At least two sensors are provided on the control circuit board, and inductive contacts that are linked to the sensors are respectively installed on both sides of the rotating ring, which are used to correspond to the fully open, fully closed, and half-open states of the ball valve.

[0011] In some embodiments, the inductive actuation assembly further includes a socket to which the control circuit board is plugged.

[0012] In some embodiments, the sensor is a Hall sensor, and the sensing contact is a magnetic column structure.

[0013] In some embodiments, the rotating seat is connected to the drive rod of the micro motor, and a rotating plate is installed on the lower side of the rotating seat. The lower side of the rotating plate is inserted into the pipe and connected to the ball valve.

[0014] In some embodiments, a lever is connected to the outside of the rotating ring, and a notch is provided on the limiting frame. The lever passes through the notch and is used to ensure that the ball valve is fully open or fully closed when the lever rotates and hits the two side walls of the notch, otherwise it is in a half-open state. A coil spring is sleeved on the outside of the rotating seat.

[0015] In some embodiments, a temperature and humidity sensor is mounted on the inductive drive assembly and electrically connected to the control circuit board.

[0016] In some embodiments, an alarm is also included, which is connected to the control circuit board via Bluetooth and to the user's mobile phone via a wireless network.

[0017] By adopting the above technical solution, the beneficial effects of the present invention are: 1. Durable and reliable sealing performance: The ball valve structure replaces the traditional sealing ring valve, achieving pipeline sealing without the need for a sealing ring. This fundamentally avoids the sealing failure problem caused by corrosion of the sealing ring by corrosive gases. The corrosion resistance and durability of the ball valve are greatly improved, effectively reducing the basic hidden dangers of liquefied gas leakage.

[0018] 2. Stable and Precise Power Transmission: The power transmission and status sensing are integrated into the same component. The rotational coordination between the rotating ring and the limit frame ensures the smoothness of power transmission and the reliability of structural limit. The connecting plate realizes the synchronous linkage between the rotating ring and the rotating seat, ensuring that the power can be accurately transmitted to the ball valve to achieve on / off control. At the same time, the control circuit board is equipped with at least two sensors, which are linked with the sensing contacts on both sides of the rotating ring. It can accurately identify the three states of the ball valve: fully open, fully closed, and half open. It can provide real-time feedback on the working status of the valve, promptly detect problems such as valve jamming and incomplete transmission, and avoid the hidden danger of liquefied petroleum gas leakage caused by the valve being half open. This improves the control accuracy and safety of the device. Moreover, the integrated component design simplifies the internal structure of the main unit, reduces the matching error between components, and facilitates the assembly and maintenance of the device.

[0019] 3. Real-time and accurate monitoring of valve status: Through the non-contact linkage of Hall sensor and magnetic column sensing contact, combined with the mechanical limit of lever and notch, the ball valve can be fully open, fully closed and half open. The monitoring results are accurate and the response speed is fast. It can detect problems such as valve jamming and transmission failure in time, avoid the leakage risk caused by the valve not being closed tightly. At the same time, the status signal can be fed back in real time, improving the accuracy of control.

[0020] 4. Comprehensive safety protection: In addition to gas leak monitoring, a temperature and humidity sensor is added to monitor changes in the temperature and humidity of the surrounding environment in real time. When a fire occurs and the temperature rises suddenly, it can automatically trigger the ball valve to shut off and the alarm to extend the protection scope of the device from gas leaks to environmental safety, achieving comprehensive safety protection.

[0021] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0022] Undoubtedly, such and other objects of the present invention will become more apparent after the following detailed description of the preferred embodiments, which are illustrated in various accompanying drawings and figures.

[0023] To make the above-mentioned beneficial effects and other objects, features and advantages of the present invention more apparent and understandable, one or more preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0024] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0025] In the accompanying drawings, the same parts use the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on such drawings without creative effort.

[0027] Explanation of key figure labels: Figure 1 This is a first-view structural schematic diagram of a two-way bottled liquefied petroleum gas safety alarm and cut-off device according to the present invention. Figure 2 This is a second-view structural schematic diagram of a two-way bottled liquefied petroleum gas safety alarm and cut-off device according to the present invention. Figure 3 This is a third-view structural diagram of a two-way bottled liquefied petroleum gas safety alarm and cut-off device according to the present invention; Figure 4 This is a schematic diagram of the internal structure of a two-way bottled liquefied petroleum gas safety alarm and shut-off device according to the present invention. Figure 5 This is a schematic diagram of the internal structure of the deceleration component of the present invention; Figure 6 This is a schematic diagram of the internal structure of the inductive transmission component of the present invention; Figure 7 This is a bottom view of the inductive transmission component of the present invention. Figure 8 This is a schematic diagram of the control circuit board and rotating ring of the present invention; Figure 9 This is an exploded view of the control circuit board and rotating ring of the present invention; Figure 10 This is a schematic diagram of the rotating ring structure from another perspective.

[0028] Explanation of main attached reference numerals: Main unit - 1, Battery compartment - 2, Pipeline - 3, Ball valve - 4, Micro motor - 5, Reduction assembly - 6, Inductive transmission assembly - 7, Drive rod - 8, Small gear - 61, First large gear - 62, Second large gear - 63, Third large gear - 64, Control circuit board - 71, Limit bracket - 72, Rotary ring - 73, Rotating seat - 74, Connecting plate - 75, Inductive contact - 76, Sensor - 77, Socket - 78, Toggle lever - 79, Notch - 710, Rotating plate - 711, Coil spring - 712. Detailed Implementation

[0029] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings and examples, so that the process of how the present invention uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly. It should be noted that, as long as there is no conflict, the various embodiments and features in the various embodiments of the present invention can be combined with each other, and the resulting technical solutions are all within the protection scope of the present invention.

[0030] Furthermore, numerous specific details are set forth in the following description for illustrative purposes to provide a thorough understanding of the embodiments of the invention. However, it will be apparent to those skilled in the art that the invention may be practiced without the specific details or particular methods described herein.

[0031] Please see Figure 1-10 The present invention provides a two-way bottled liquefied petroleum gas safety alarm and shut-off device, comprising: a main unit 1, an energy storage compartment 2, a pipeline 3, and a ball valve 4. The energy storage compartment 2 is connected to the main unit 1, and the ball valve 4 is installed inside the pipeline 3. The main unit 1 is installed on the pipeline 3 and is used to control the rotation of the ball valve 4.

[0032] Specifically, the energy storage compartment 2 provides power to all electrical components of the entire device, ensuring normal operation even during power outages and preventing loss of safety protection capabilities when mains power is interrupted. The main unit 1, as the control and execution core of the device, integrates power, transmission, and sensing control components. It is directly installed on the liquefied petroleum gas pipeline 3 and can actively control the rotation of the ball valve 4 inside the pipeline 3 based on monitoring signals, thereby controlling the on / off state of the pipeline 3. This device replaces the traditional sealing ring valve with the ball valve 4, which is made of copper and has excellent corrosion resistance. It can achieve pipeline 3 sealing without the need for a sealing ring, completely solving the sealing failure problem caused by the corrosion of the sealing ring in traditional valves, and structurally improving the durability and reliability of the pipeline seal. The independent power supply design of the energy storage compartment 2 allows the device to break free from mains power dependence and improves the continuity of protection. The integrated installation of the main unit 1 and the pipeline 3 reduces the size of the device and facilitates installation and adaptation in various bottled liquefied petroleum gas usage scenarios.

[0033] According to some embodiments of this application, optionally, the host 1 is equipped with a micro motor 5, a reduction gear assembly 6, and an induction transmission assembly 7, and the micro motor 5 is connected to the induction transmission assembly 7 through the reduction gear assembly 6.

[0034] Specifically, the micro motor 5 provides the power source for the rotation of the ball valve 4. Its output power is adjusted in speed by the reduction gear 6 and then transmitted to the inductive transmission assembly 7, which in turn transmits the power to the ball valve 4, achieving precise rotation control of the ball valve 4. The inductive transmission assembly 7 also performs a status sensing function, monitoring its own transmission status in real time and feeding back the status signal to the control components. The micro motor 5 is small in size and has controllable torque, adapting to the miniaturized design of the main unit 1 and meeting the device's precise control requirements. The reduction gear 6 converts the high-speed, low-torque output of the micro motor 5 into a low-speed, high-torque output, ensuring sufficient power to rotate the ball valve 4 and preventing insufficient power from causing the ball valve 4 to fail to close effectively. The inductive transmission assembly 7 integrates power transmission and status sensing, allowing the device to monitor the action execution status in real time while performing the closing / opening action, improving control accuracy.

[0035] According to some embodiments of this application, optionally, the reduction assembly 6 includes a pinion 61, a first large gear 62, a second large gear 63, and a third large gear 64. The pinion 61 is mounted on the drive rod 8 of the micro motor 5. The pinion 61 meshes with the first large gear 62, and the first large gear 62, the second large gear 63, and the third large gear 64 drive each other in sequence.

[0036] Specifically, the drive rod 8 of the micro motor 5 drives the pinion 61 to rotate synchronously. The pinion 61 meshes with the first large gear 62, transmitting power to the first large gear 62, achieving the first reduction and torque increase. The first large gear 62 then transmits power sequentially to the second large gear 63 and the third large gear 64. Through three stages of gear meshing transmission, the output speed and torque of the micro motor 5 are adjusted, and finally the adjusted power is transmitted to the induction transmission component 7. This process adopts a three-stage gear meshing reduction structure, which has a more significant reduction and torque increase effect than single-stage or double-stage reduction. It can provide stable and sufficient torque for the rotation of the ball valve 4, ensuring that the ball valve 4 can be opened and closed smoothly under various operating conditions. The gear transmission method has high transmission efficiency and good stability, and is not prone to transmission slippage, ensuring the reliability of power transmission. Each gear is an independent component, which facilitates assembly and later maintenance and replacement, reducing the maintenance cost of the device.

[0037] According to some embodiments of this application, optionally, the inductive transmission assembly 7 includes a control circuit board 71, a limit frame 72, a rotating ring 73, a rotating seat 74, a connecting plate 75, and inductive contacts 76. The rotating ring 73 is rotatably mounted on the limit frame 72, and the rotating seat 74 is connected to the rotating ring 73 through the connecting plate 75. At least two sensors 77 are provided on the control circuit board 71, and inductive contacts 76 that are linked to the sensors 77 are respectively installed on both sides of the rotating ring 73, which are used to correspond to the fully open, fully closed, and half-open states of the ball valve 4.

[0038] Specifically, the limit frame 72 provides rotational support and limit for the rotating ring 73, ensuring the coaxiality of the rotating ring 73; the power transmitted by the deceleration assembly 6 drives the rotating seat 74 to rotate, and through the connecting plate 75, the rotating ring 73 rotates synchronously, and the rotating seat 74 then drives the ball valve 4 to rotate, realizing the on / off control of the pipeline 3; when the rotating ring 73 rotates, the sensing contacts 76 on both sides rotate together. When the sensing contact 76 corresponds to the sensor 77 on the control circuit board 71, the sensor 77 receives the sensing signal and transmits the signal to the control circuit board 71; two or more sensors 77 correspond to the fully open and fully closed positions of the ball valve 4 respectively. When the sensing contact 76 corresponds to any sensor 77, the control circuit board 71 determines that the ball valve 4 is in a fully open or fully closed state. When the sensing contact 76 does not correspond to any sensor 77, the control circuit board 71 determines that the ball valve 4 is in a half open state.

[0039] The control circuit board 71, as the control core of the device, can receive the sensing signals from the sensor 77, the temperature and humidity monitoring signals, and the leakage alarm signals, and issue corresponding action commands according to the signals to realize the automated control of the device. The transmission structure composed of the rotating ring 73, the connecting plate 75, and the rotating seat 74 ensures that the power is smoothly transmitted from the reduction assembly 6 to the ball valve 4 without any jamming during the transmission process. The linkage between the sensing contact 76 and the sensor 77 enables real-time and accurate monitoring of the status of the ball valve 4, and can accurately feed back the fully open, fully closed, and half-open status of the ball valve 4 to avoid the leakage hazards caused by the valve not being closed tightly. The half-open state monitoring design can promptly detect device transmission faults or valve jamming problems, facilitating timely maintenance by the user.

[0040] According to some embodiments of this application, optionally, the inductive transmission assembly 7 also includes a socket 78, on which the control circuit board 71 is plugged into the socket 78.

[0041] Specifically, the socket 78 is pre-connected to the device's power supply and signal lines. The control circuit board 71 is directly inserted into the socket 78, achieving electrical connection with the power supply line to obtain operating power, and simultaneously achieving signal connection with various sensors and actuators to complete signal reception and transmission. Its plug-in installation method replaces the traditional soldering connection, making the assembly and disassembly of the control circuit board 71 more convenient, facilitating later fault detection, circuit board replacement, and device maintenance. The socket 78's connection method ensures good contact, guaranteeing the stability of power and signal transmission and preventing device control failure due to poor wiring contact.

[0042] According to some embodiments of this application, optionally, the sensor 77 is a Hall sensor and the sensing contact 76 is a magnetic column structure.

[0043] Specifically, the Hall sensor operates based on the Hall effect. When the sensing contact 76 of the magnetic column structure rotates with the rotating ring 73 into the sensing range of the Hall sensor, the Hall sensor detects the change in magnetic field, thereby generating an electrical signal, which is then transmitted to the control circuit board 71. The control circuit board 71 determines the state of the ball valve 4 based on the electrical signal. The Hall sensor is a non-contact sensor, and its cooperation with the sensing contact 76 of the magnetic column structure eliminates mechanical contact wear, resulting in a long service life and adaptability to long-term rotation monitoring conditions. The non-contact sensing method has strong anti-interference capabilities and is not easily affected by impurities in the liquefied petroleum gas environment such as oil and dust, ensuring the accuracy of state monitoring. The Hall sensor has a fast response speed, providing real-time feedback on the valve state, allowing the control circuit board 71 to promptly acquire signals and issue commands, thus improving the device's responsiveness.

[0044] According to some embodiments of this application, optionally, the rotating seat 74 is connected to the drive rod 8 of the micro motor 5, and a rotating plate 711 is installed on the lower side of the rotating seat 74. The lower side of the rotating plate 711 is inserted into the pipe 3 and connected to the ball valve 4.

[0045] Specifically, one end of the rotating seat 74 is connected to the power transmitted by the reduction assembly 6, and the other end is fixedly connected to the rotating plate 711. The power output by the micro motor 5 is transmitted to the rotating seat 74 through the reduction assembly 6 and the induction transmission assembly 7, which drives the rotating plate 711 to rotate synchronously. The rotating plate 711 extends into the pipe 3 and connects to the ball valve 4, thereby driving the ball valve 4 to rotate within the pipe 3, realizing the switching of the pipe 3 on and off. In this process, the rotating plate 711, as the connecting component between the rotating seat 74 and the ball valve 4, extends into the pipe 3 to achieve a precise connection with the ball valve 4, ensuring the directness of power transmission and avoiding losses during power transmission. The connection between the rotating seat 74, the drive rod 8, and the rotating plate 711 is firm and can withstand the reaction force when the ball valve 4 rotates, ensuring the stability of the transmission structure. The structural design of the rotating plate 711 is adapted to the internal space of the pipe 3 and will not obstruct the normal transportation of liquefied petroleum gas.

[0046] According to some embodiments of this application, optionally, a lever 79 is connected to the outer side of the rotating ring 73, a notch 710 is provided on the limiting frame 72, the lever 79 passes through the notch 710 and is used to make the ball valve 4 fully open or fully closed when the lever 79 rotates and hits the two side walls of the notch 710, otherwise it is in a half-open state, and a coil spring 712 is sleeved on the outer side of the rotating seat 74.

[0047] Specifically, when the rotating ring 73 rotates, it drives the lever 79 to rotate synchronously within the notch 710. The two side walls of the notch 710 set the limit positions for the rotation of the lever 79. When the lever 79 rotates to touch one side wall of the notch 710, the rotating ring 73 can no longer rotate, and the ball valve 4 is in the fully open state. When the lever 79 rotates to touch the other side wall of the notch 710, the ball valve 4 is in the fully closed state. When the lever 79 does not touch either side wall of the notch 710, the ball valve 4 is in the half-open state. The coil spring 712 is sleeved on the outside of the rotating seat 74, with one end fixed to the rotating seat 74 and the other end fixed to the housing of the main unit 1. When the rotating seat 74 drives the ball valve 4 to rotate, the coil spring 712 undergoes elastic deformation. When the device is powered off or malfunctions, the elastic restoring force of the coil spring 712 can drive the rotating seat 74 to rotate in the opposite direction, so that the ball valve 4 returns to the closed state.

[0048] The mechanical limiting action of lever 79 and notch 710 provides dual limiting protection for the fully open and fully closed positions of ball valve 4. Combined with the electronic monitoring of sensing contact 76 and sensor 77, it achieves dual mechanical and electronic status determination, further improving the accuracy of valve status monitoring. Lever 79 extends beyond notch 710, allowing users to visually observe the working status of ball valve 4. It can also be manually operated to open and close ball valve 4 in case of power failure, enhancing the device's emergency operation capability. The reset function of coil spring 712 allows the device to automatically close ball valve 4 in case of power failure, motor failure, or other emergencies, preventing liquefied gas leakage due to device malfunction and further improving the device's safety protection level.

[0049] According to some embodiments of this application, optionally, a temperature and humidity sensor is mounted on the inductive transmission assembly 7 and electrically connected to the control circuit board 71.

[0050] Specifically, the temperature and humidity sensor monitors the temperature and humidity data of the surrounding environment in real time and continuously transmits the monitored electrical signals to the control circuit board 71. The control circuit board 71 has preset temperature and humidity thresholds. When the monitored temperature exceeds the preset temperature threshold (such as a sudden temperature rise caused by a fire) or when the humidity changes abnormally, the control circuit board 71 immediately issues a command to drive the micro motor 5 to close the ball valve 4 and trigger the alarm device.

[0051] It can add temperature and humidity monitoring functions to the gas leak monitoring, so that the protection scope of the device can be expanded from a single gas leak to the abnormal temperature and humidity of the environment, achieving all-round safety protection; when a fire occurs in the surrounding area, it can trigger shutdown and alarm actions in advance to avoid serious accidents such as explosion and combustion of liquefied gas when it comes into contact with open flame; real-time monitoring of temperature and humidity can also provide users with safety data of the operating environment, so that users can promptly discover safety hazards in the operating environment.

[0052] According to some embodiments of this application, optionally, the cutting-off device also includes an alarm, which is connected to the control circuit board 71 via Bluetooth and to the user's mobile phone via a wireless network.

[0053] Specifically, when the control circuit board 71 receives a gas leak signal, an abnormal temperature and humidity signal, or a valve half-open fault signal, it immediately sends an alarm command to the alarm via Bluetooth. After receiving the command, the alarm emits an audible and visual alarm signal to alert on-site personnel. At the same time, the alarm sends alarm information and valve status information to the user's mobile phone via a wireless network, realizing remote alarm and status feedback.

[0054] The process features on-site audible and visual alarms that promptly alert nearby personnel to take emergency measures and prevent the accident from escalating; remote mobile phone alarms allow users to monitor the safety status of liquefied petroleum gas usage in real time, even when they are not on-site, to be aware of faults and alarm information, and to remotely guide on-site emergency handling; Bluetooth connectivity enables short-range communication between the host device and the alarm, ensuring stable transmission and low power consumption; and wireless network remote transmission allows the device's safety warnings to overcome spatial limitations, improving the timeliness and convenience of safety protection. Example

[0055] In actual use, first connect the device's pipe 3 to the bottled liquefied petroleum gas delivery pipeline to complete the installation and fixation of the device. The energy storage tank 2 is fully charged in advance to provide working power for the device.

[0056] When the device is working normally, the control circuit board 71 receives environmental monitoring signals from the temperature and humidity sensor in real time, and monitors the status of the ball valve 4 through the sensor 77. At this time, the ball valve 4 is in the fully open state, and liquefied petroleum gas is delivered normally through the pipeline 3. When a liquefied gas leak is detected, or the temperature and humidity sensor detects that the ambient temperature exceeds the preset threshold (such as in the event of a fire), the alarm is triggered, and the control circuit board 71 immediately issues a command to drive the micro motor 5 to start. The drive rod 8 of the micro motor 5 drives the pinion 61 to rotate. After three stages of reduction and torque amplification by the first large gear 62, the second large gear 63, and the third large gear 64, the power is transmitted to the rotating seat 74 of the inductive transmission component 7.

[0057] The rotating seat 74, via the connecting plate 75, carries the rotating ring 73 and rotates on the limiting frame 72. The rotating seat 74 also drives the rotating plate 711 to rotate, which in turn drives the ball valve 4 inside the pipeline 3 to rotate, thus shutting off the pipeline 3. During the rotation of the rotating ring 73, the sensing contacts 76 on both sides rotate simultaneously. When a sensing contact 76 aligns with a corresponding sensor 77 on the control circuit board 71, the sensor 77 transmits a shutdown signal to the control circuit board 71. The control circuit board 71 determines that the ball valve 4 is fully closed and then controls the micro motor 5 to stop working. If, after the rotating ring 73 rotates, the sensing contact 76 does not align with any sensor 77, the control circuit board 71 determines that the ball valve 4 is in a half-open state, the alarm continues, and it will also be displayed on the associated app on the user's mobile phone.

[0058] As the ball valve 4 rotates to close, the control circuit board 71 sends an alarm command to the alarm via Bluetooth. The alarm then issues an audible and visual alarm and simultaneously sends the alarm information and the closing or fault status of the ball valve 4 to the user's mobile phone via a wireless network, enabling remote alarm functionality. In the event of a power outage, a malfunction of the micro motor 5, or other emergencies, the coil spring 712 on the outside of the rotating seat 74 uses its elastic restoring force to rotate the rotating seat 74 in the opposite direction, thereby automatically closing the ball valve 4 and preventing liquefied gas leakage.

[0059] Once the fault is cleared, the user can send a command via mobile phone or operate on-site to control the micro motor 5 to start in reverse, driving the ball valve 4 to rotate to the fully open state. The lever 79 will then contact the side wall of the notch 710, and the sensing contact 76 will align with the corresponding sensor 77. The control circuit board 71 will then determine that the ball valve 4 is fully open, and the device will return to normal operation. If the device requires maintenance, the control circuit board 71 can be directly removed for inspection and replacement. Each gear, sensor, and other component is an independent structure and can be disassembled and maintained individually, making operation convenient.

[0060] It should be understood that the embodiments disclosed herein are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0061] The term "embodiment" in this specification refers to a specific feature or characteristic described in connection with an embodiment that is included in at least one embodiment of the invention. Therefore, phrases or "embodiments" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0062] Furthermore, the described features or characteristics can be incorporated into one or more embodiments in any other suitable manner. In the above description, specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of embodiments of the invention. However, those skilled in the art will understand that the invention can be implemented without the aforementioned specific details or may be implemented using other methods, components, materials, etc.

Claims

1. A two-way bottled liquefied petroleum gas safety alarm and shut-off device, characterized in that, include: The main unit (1), the battery compartment (2), the pipeline (3), and the ball valve (4) are connected to the main unit (1). The ball valve (4) is installed in the pipeline (3). The main unit (1) is installed on the pipeline (3) and is used to control the rotation of the ball valve (4). The main unit (1) is equipped with a micro motor (5), a reduction gear assembly (6), and an induction transmission assembly (7). The micro motor (5) is connected to the induction transmission assembly (7) through the reduction gear assembly (6). The inductive transmission assembly (7) includes a control circuit board (71), a limit frame (72), a rotating ring (73), a rotating seat (74), a connecting plate (75), and inductive contacts (76). The rotating ring (73) is rotatably mounted on the limit frame (72), and the rotating seat (74) is connected to the rotating ring (73) through the connecting plate (75). At least two sensors (77) are provided on the control circuit board (71), and inductive contacts (76) linked with the sensors (77) are installed on both sides of the rotating ring (73), which are respectively used to correspond to the fully open, fully closed, and half-open states of the ball valve (4).

2. The bidirectional bottled liquefied petroleum gas safety alarm and shut-off device according to claim 1, characterized in that, The speed reduction assembly (6) includes a pinion (61), a first large gear (62), a second large gear (63), and a third large gear (64). The pinion (61) is mounted on the drive rod (8) of the micro motor (5). The pinion (61) meshes with the first large gear (62), and the first large gear (62), the second large gear (63), and the third large gear (64) drive each other in sequence.

3. The bidirectional bottled liquefied petroleum gas safety alarm and shut-off device according to claim 1, characterized in that, The inductive drive assembly (7) also includes a socket (78) to which the control circuit board (71) is plugged.

4. The bidirectional bottled liquefied petroleum gas safety alarm and shut-off device according to claim 1, characterized in that, The sensor (77) is a Hall sensor, and the sensing contact (76) is a magnetic column structure.

5. A two-way bottled liquefied petroleum gas safety alarm and shut-off device according to claim 1, characterized in that, The rotating seat (74) is connected to the drive rod (8) of the micro motor (5). A rotating plate (711) is installed on the lower side of the rotating seat (74). The lower side of the rotating plate (711) is inserted into the pipe (3) and connected to the ball valve (4).

6. A bidirectional bottled liquefied petroleum gas safety alarm and shut-off device according to claim 1 or 5, characterized in that, A lever (79) is connected to the outside of the rotating ring (73). A notch (710) is provided on the limiting frame (72). The lever (79) passes through the notch (710) and is used to make the ball valve (4) fully open or fully closed when the lever (79) rotates and hits the two side walls of the notch (710). Otherwise, it is in a half-open state. A coil spring (712) is sleeved on the outside of the rotating seat (74).

7. A bidirectional bottled liquefied petroleum gas safety alarm and shut-off device according to claim 1, characterized in that, A temperature and humidity sensor is installed on the inductive drive assembly (7) and is electrically connected to the control circuit board (71).

8. A bidirectional bottled liquefied petroleum gas safety alarm and shut-off device according to claim 1, characterized in that, It also includes an alarm, which communicates with the control circuit board (71) via Bluetooth and with the user's mobile phone via a wireless network.

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