Action sensing mechanism, fire extinguishing device, internet of things home system and control method

Abstract

The present application relates to action sensing mechanism based on internet of things home system, fire extinguishing device, internet of things home system and control method, the action sensing mechanism includes: temperature sensing trigger unit, it includes temperature sensing assembly and sliding assembly, temperature sensing assembly is connected with sliding assembly contact, temperature sensing assembly senses ambient temperature, and in the case where ambient temperature is lower than set temperature, sliding assembly is supported and positioned, in the case where ambient temperature reaches set temperature, it is separated from sliding assembly, and sliding assembly generates displacement; detection unit is used for detecting displacement signal of sliding assembly; control unit is connected with detection unit, and the control unit is configured to switch internet of things home system from safety scene mode to fire scene mode according to displacement signal detected by detection unit.The present application can realize the automatic shutdown of gas pipeline, gas stove and power supply when fire occurs, can avoid the intensification of fire to a certain extent, and reduce user life and property loss.

Description

Technical Field

[0001] This invention relates to the field of Internet of Things (IoT) technology, and in particular to a motion sensing mechanism, a fire extinguishing device, an IoT home system, and a control method. Background Technology

[0002] In related technologies, fixed heat-sensing fire extinguishing devices are installed on indoor roofs to automatically extinguish fires in the event of a fire, effectively protecting the lives and property of users. With the rapid development of IoT technology, smart fire monitoring systems have also seen rapid growth in recent years. While these systems typically detect fires and issue alarms to alert personnel to evacuate, they often fail to automatically shut off gas and electricity during a fire, potentially leading to the rapid spread of the fire and serious harm to users' lives and property. Summary of the Invention

[0003] To overcome the problems existing in related technologies, the first aspect of the present invention proposes a motion sensing mechanism based on an Internet of Things (IoT) home system, the motion sensing mechanism comprising:

[0004] A temperature-sensing trigger unit includes a temperature-sensing component and a sliding component. The temperature-sensing component is in contact with the sliding component. The temperature-sensing component senses the ambient temperature and supports and positions the sliding component when the ambient temperature is lower than a set temperature. When the ambient temperature reaches the set temperature, the temperature-sensing component separates from the sliding component, and the sliding component is displaced.

[0005] A detection unit is used to detect the displacement signal of the sliding component;

[0006] A control unit, connected to the detection unit, is configured to control the IoT home system to switch from a safety scene mode to a fire scene mode based on the displacement signal detected by the detection unit.

[0007] The fire scenario modes include at least one of cutting off the gas pipeline, turning off the gas stove, and cutting off the power supply.

[0008] In some embodiments, the temperature sensing component includes: the motion sensing mechanism includes a cylinder, the interior of which is provided with a slide rail arranged along its axial direction, the sliding component is movably disposed within the slide rail, and one axial end of the cylinder has an opening communicating with the slide rail; the temperature sensing component includes:

[0009] A support component is provided at the opening to support and position the sliding assembly;

[0010] A heat collection component is connected to the support component. The heat collection component is used to collect ambient heat and can transfer ambient heat to the support component. The support component separates from the sliding component when the temperature of the received heat reaches a set temperature.

[0011] In some embodiments, the cylindrical body includes a first boss and a second boss, the first boss and the second boss being disposed on opposite sides of the opening, and having an installation gap between the first boss and the second boss.

[0012] The supporting component includes a support column assembly, which is disposed in the installation gap. One axial end of the support column assembly is connected to the first boss, and the other axial end of the support column assembly supports and positions the sliding component on the side of the second boss facing the first boss. The heat collection component is connected to the support column assembly.

[0013] The support column assembly includes a hot-melt alloy component, and the set temperature is greater than or equal to the melting point of the hot-melt alloy component.

[0014] In some embodiments, the first boss is provided with a threaded hole that penetrates the first boss in the radial direction of the cylinder, and the heat collection component includes heat collection plates;

[0015] The support column assembly further includes a support column, an abutment column, and a set screw. The end of the support column facing away from the threaded hole is connected to the heat collection plate. A blind hole is opened at the end of the support column facing the threaded hole. The hot melt alloy part and the abutment column are arranged sequentially from the inside to the outside in the blind hole. The set screw is engaged with the threaded hole and one axial end of the set screw abuts against the abutment column. The sliding assembly is supported and positioned between the second boss and the heat collection plate.

[0016] In some embodiments, the heat collection plate includes a first segment and a second segment connected together. The second segment is located in the mounting gap and connected to the end of the support column opposite to the threaded hole. The first segment is disposed opposite to the end face of the second boss and covers the end face of the second boss. The first segment has a plurality of vent holes.

[0017] In some embodiments, the sliding component includes:

[0018] A sliding component is movably disposed within the slide rail, and the supporting component supports and positions the sliding component; the detection unit detects the displacement signal of the sliding component.

[0019] An elastic component is disposed within the slide rail and connected to the sliding component. When the supporting component supports and positions the sliding component, the elastic component is in a deformed state. When the supporting component separates from the sliding component, the elastic force of the elastic component drives the sliding component to move along the axial direction of the slide rail.

[0020] In some embodiments, the sliding component includes a slide plate, a slide cylinder, and a slider arranged sequentially along the axial direction of the slide rail, wherein one end of the slide plate in the longitudinal direction is confined within the slide cylinder and movably connected to the slide cylinder, the other end of the slide plate in the longitudinal direction extends to the mounting gap and is supported and positioned on the second boss by the support component, and the slider is fixedly connected to the slide cylinder and blocks the end of the slide cylinder away from the opening;

[0021] The elastic component includes a spring, one end of which is connected to one axial end of the slide rail, and the other end is connected to the slider.

[0022] A second aspect of the present invention provides a fire extinguishing device, the fire extinguishing device comprising an annular shell, a storage bottle, a puncture mechanism, and any of the motion sensing mechanisms proposed in the first aspect of the present invention, wherein:

[0023] The annular shell has an inner annular cavity through its center, and the interior of the annular shell forms an annular shell cavity for containing fire extinguishing agents. The annular shell cavity is connected to the inner annular cavity. The lower part of the annular shell has at least one mounting port for installing a fire extinguishing agent spraying assembly. The storage bottle, the puncture mechanism, and the motion sensing mechanism are arranged sequentially from top to bottom within the inner annular cavity.

[0024] The storage bottle is used to store propellant. The outlet end of the storage bottle is sealed and faces the piercing mechanism. The piercing mechanism includes a striking pin. The piercing end of the striking pin faces the outlet end and can move towards the outlet end. After the sliding component of the temperature-sensing trigger unit separates from the temperature-sensing component, it will push the striking pin towards the outlet end and pierce the outlet end. The propellant in the storage bottle is discharged from the outlet end and enters the annular shell cavity. The extinguishing agent in the annular shell cavity is sprayed out by the agent spraying component under pressure.

[0025] A third aspect of the present invention provides an Internet of Things (IoT) home system, which includes any of the motion sensing mechanisms proposed in the first aspect of the present invention, or includes the fire extinguishing device proposed in the second aspect of the present invention.

[0026] A fourth aspect of this invention provides a control method for an Internet of Things (IoT) home system, the control method being used to control any of the IoT home systems proposed in the third aspect of this invention, the control method comprising:

[0027] Determine whether the detection unit has detected a displacement signal;

[0028] When the detection unit detects a displacement signal, it controls the IoT home system to switch from a safety scene mode to a fire scene mode.

[0029] The fire scenario modes include at least one of cutting off the gas pipeline, turning off the gas stove, and cutting off the power supply.

[0030] The technical solution of the present invention can include the following beneficial effects: The present invention detects the displacement of the sliding component by a detection unit, thereby detecting the fire in a timely manner and controlling the Internet of Things home system to automatically enter the fire scene mode in the early stage of the fire, thereby realizing the shutdown of gas, gas stove and power, which can prevent the fire from further intensifying and reduce the loss of life and property of users.

[0031] 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. Attached Figure Description

[0032] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0033] Figure 1 This is a structural diagram of a motion sensing mechanism according to an exemplary embodiment.

[0034] Figure 2 This is a front view of a temperature-sensing trigger unit shown according to an exemplary embodiment.

[0035] Figure 3 yes Figure 2 Sectional view along the AA direction.

[0036] Figure 4 This is a diagram illustrating a state where a sliding component loses its supporting and positioning function according to an exemplary embodiment.

[0037] Figure 5 This is an exploded view of a portion of the structure of a temperature-sensing trigger unit according to an exemplary embodiment.

[0038] Figure 6 This is a structural diagram of a fire extinguishing device according to an exemplary embodiment.

[0039] Figure 7This is a cross-sectional view of a portion of the structure of a fire extinguishing device according to an exemplary embodiment.

[0040] Figure 8 This is an exploded view of the housing of a fire extinguishing device according to an exemplary embodiment.

[0041] Figure 9 This is a cross-sectional view of the housing, connectors, and nozzle seat assembly of a fire extinguishing device according to an exemplary embodiment.

[0042] Figure 10 This is a structural diagram of the nozzle of a fire extinguishing device according to an exemplary embodiment.

[0043] Figure 11 This is a structural diagram of a sealing component of a fire extinguishing device according to an exemplary embodiment.

[0044] Figure 12 This is a structural diagram of the connector of a fire extinguishing device according to an exemplary embodiment.

[0045] Figure 13 This is a structural diagram of the puncture mechanism of a fire extinguishing device according to an exemplary embodiment.

[0046] Figure 14 This is a cross-sectional view of the puncture mechanism of a fire extinguishing device according to an exemplary embodiment.

[0047] Figure 15 This is a structural diagram of the firing pin of a fire extinguishing device according to an exemplary embodiment.

[0048] The attached figures are labeled as follows:

[0049] 1. Annular shell; 11. Upper shell; 12. Lower shell; 13. Annular shell cavity; 14. Inner annular cavity; 114. First flange; 1151. Upper mounting hole; 124. Second flange; 1251. Lower mounting hole; 142. Mounting port; 143. Mounting space; 21. Nozzle seat; 213. Agent channel; 23. Nozzle; 231. Spraying hole; 24. Sealing component; 241. Sealing membrane; 2411. Sealing membrane body; 2412. Auxiliary groove; 242. Limiting ring; 3. Storage bottle; 31. Storage bottle body; 32. Bottle cover; 41. Connector; 411. Base; 412. Upper connector; 413. Lower connector; 414. First connecting channel; 416. Second connecting channel; 42. Upper nut; 43. Lower nut; 5. Puncture mechanism; 51. Impact 511. Needle sleeve; 512. Strike pin sleeve through hole; 53. Strike pin base; 54. Strike pin; 55. Strike pin channel; 56. Lateral through hole; 57. Top opening; 58. Strike pin body; 69. Temperature sensing trigger unit; 60. Cylinder; 611. First boss; 6111. Threaded hole; 612. Second boss; 613. Installation gap; 615. Slide rail; 62. Sliding component; 621. Sliding plate; 622. Sliding cylinder; 623. Sliding block; 64. Elastic component; 65. Support component; 66. Set screw; 67. Abutment post; 68. Hot melt alloy component; 69. Support post; 60. Heat collection component; 61. First segment; 62. Second segment; 6511. Vent hole; 66. Gasket; 7. Detection unit; 8. Control unit. Detailed Implementation

[0050] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the invention as detailed in the appended claims.

[0051] The following describes this embodiment in detail with reference to the accompanying drawings. Unless otherwise specified, the following embodiments and examples can be combined with each other.

[0052] According to an exemplary embodiment, such as Figures 1-5As shown, this embodiment proposes a motion sensing mechanism based on an IoT home system. The motion sensing mechanism includes a temperature-sensing trigger unit 6, a detection unit 7, and a control unit 8. The temperature-sensing trigger unit 6 includes a temperature-sensing component and a sliding component, which are in contact with each other. The temperature-sensing component senses the ambient temperature and supports and positions the sliding component when the ambient temperature is below a set temperature. When the ambient temperature reaches the set temperature, the temperature-sensing component separates from the sliding component, causing displacement. The set temperature is the lowest temperature in case of a fire, which can be determined by detecting the ambient temperature or by melting a thermoplastic alloy. The detection unit 7 is used to detect the displacement signal of the sliding component; for example, it is a displacement sensor. The control unit 8 is connected to the detection unit 7 and is configured to control the IoT home system to switch from a safety scene mode to a fire scene mode based on the displacement signal detected by the detection unit 7. The fire scene mode includes at least one of cutting off the gas pipeline, turning off the gas stove, and cutting off the power supply. In this embodiment, the displacement of the sliding component is detected by the detection unit 7, which can detect the fire in time and control the Internet of Things home system to automatically enter the fire scene mode in the early stage of the fire. This can realize the automatic shutdown of gas, gas stove and power, which can prevent the fire from escalating further and reduce the loss of life and property of users.

[0053] In some embodiments, such as Figures 1-5 As shown, the motion sensing mechanism includes a cylinder 61, and the temperature sensing component includes a support member 64 and a heat collecting member 65. The cylinder 61 has an axially oriented slide rail 615 inside, and the sliding component is movably disposed within the slide rail 615. At least one axial end of the cylinder 61 has an opening communicating with the slide rail 615, and the support member 64 is disposed at the opening for supporting and positioning the sliding component. In one example, one axial end of the cylinder 61 has an opening, while the other end is sealed, and the support member 64 is disposed at the opening. In other embodiments, the slide rail 615 penetrates the cylinder 61, meaning that openings are provided at both axial ends of the cylinder 61, and the support member 64 is disposed at any one of the axial openings of the cylinder 61. The heat collecting member 65 is connected to the support member 64. The heat collecting member 65 is used to collect ambient heat and can transfer ambient heat to the support member 64. When the temperature of the heat received by the support member 64 reaches a set temperature, it indicates that the ambient temperature is high and a fire is likely. At this time, the support member 64 separates from the sliding component.

[0054] In a specific example, such as Figure 1 and Figure 3As shown, the cylinder 61 includes a first boss 611 and a second boss 612, which are located on opposite sides of the opening, with an installation gap 613 between them. The support member 64 includes a support column assembly located within the installation gap 613. One axial end of the support column assembly is connected to the first boss 611, and the other axial end supports and positions the sliding component on the side of the second boss 612 facing the first boss 611. The heat collection member 65 is connected to the support column assembly. The support column assembly includes a thermoplastic alloy component 643, with a set temperature, for example, greater than or equal to the melting point of the thermoplastic alloy component 643. When the temperature of the heat received by the support member 64 reaches the set temperature, the thermoplastic alloy component 643 melts, causing the support to collapse. The support member 64 then fails to support and position the sliding component, and the support member 64 separates from the sliding component. Figure 4 A diagram showing the state of the sliding component losing the supporting and positioning function of component 64.

[0055] In one example, the support column assembly includes a support column 644, which is entirely made of a hot-melt alloy, or partially made of a hot-melt alloy. The support column 644 is located between the first boss 611 and the second boss 612, supporting and positioning the sliding member 62 on the second boss 612. In another example, as... Figure 3 As shown, the first boss 611 is provided with a threaded hole 6111, which penetrates the first boss 611 in the radial direction of the cylinder 61. The heat collection component 65 includes a heat collection plate. The support column assembly also includes a support column 644, an abutment column 642, and a set screw 641. The end of the support column 644 facing away from the threaded hole 6111 is connected to the heat collection plate. The sliding component is located between the second boss 612 and the heat collection plate. A blind hole is opened at the end of the support column 644 facing the threaded hole 6111. The thermoplastic alloy part 643 and the abutment column 642 are arranged sequentially from the inside to the outside in the blind hole. The set screw 641 cooperates with the threaded hole 6111 and abuts against the abutment column 642, so that the sliding component is supported and positioned between the second boss 612 and the heat collection plate.

[0056] In other embodiments, the temperature sensing component can also be a combination of a temperature sensor and an electrically controlled telescopic component. The electrically controlled telescopic component is disposed at the opening to support and position the sliding component. The temperature sensor detects the ambient temperature, and when the detected ambient temperature reaches the set temperature, the control unit 8 controls the electrically controlled telescopic component to retract and separate from the sliding component.

[0057] In some implementations, such as Figure 1 , Figures 3-5As shown, the heat collection plate includes a first segment 651 and a second segment 652 connected together. The second segment 652 is located in the mounting gap 613 and connected to one end of the support column 644 away from the threaded hole 6111. The first segment 651 is located between the sliding assembly and the support column 644. The first segment 651 is positioned opposite to and covers the end face of the second boss 612. The first segment 651 senses ambient heat and transfers the heat to the second segment 652. The second segment 652 further transfers the heat to the support column 644, thereby melting the thermoplastic alloy part 643 inside the support column 644. This causes the support component 64 to lose its support and positioning of the sliding assembly, resulting in displacement of the sliding assembly. The second segment 652 has multiple vent holes 6511. These vent holes 6511 can reduce thermal resistance and improve the temperature distribution uniformity on both sides of the first segment 651 and the support column 644, allowing heat to concentrate on the support column 644. The heat collection plate, support column 644, and abutment column 642 are all made of materials with excellent thermal conductivity, such as metal. A gasket 66 is also provided between the second segment 652 and the sliding component to increase the contact area between the second segment 652 and the sliding component, increase friction, and further improve the support and positioning effect of the sliding component.

[0058] In some embodiments, such as Figure 1 and Figure 3 As shown, the sliding assembly includes a sliding component 62 and an elastic component 63. The sliding component 62 is movably disposed within the slide rail 615 of the cylinder 61, and the supporting component 64 supports and positions the sliding component 62. The detection unit 7 detects the displacement signal of the sliding component 62. The elastic component 63 is disposed within the slide rail 615 and connected to the sliding component 62. When the supporting component 64 supports and positions the sliding component 62, the elastic component 63 is in a deformed state. When the supporting component 64 separates from the sliding component 62, the elastic force of the elastic component 63 drives the sliding component 62 to move along the axial direction of the slide rail 615.

[0059] Preferred, such as Figures 3-5As shown, the sliding component 62 includes a sliding plate 621, a sliding cylinder 622, and a slider 623 arranged sequentially along the axial direction of the slide rail 615. One end of the sliding plate 621 in the length direction is confined within the sliding cylinder 622 and is movably connected to the sliding cylinder 622, thereby reducing the stress between the sliding plate 621 and the sliding cylinder 622. When the supporting component 64 loses its support and confinement for the sliding plate 621, it prevents the movement trajectory of the sliding plate 621 within the slide rail 615 from deviating, which could cause the elastic component 63 to be blocked from popping out, thus ensuring the reliability of the entire sliding assembly. One end of the slider 621 located inside the slide cylinder 622 extends along the width direction of the slider 621 to form a limiting part. The limiting part is matched with the end of the slide cylinder 622 near the opening to prevent the slider 621 from disengaging from the slide cylinder 622. The other end of the slider 621 extends to the installation gap 613 and is supported and positioned on the second boss 612 by the supporting member 64. The detection unit 7 detects the displacement signals of the slider 621, the slide cylinder 622 and / or the slider 623.

[0060] Preferred, such as Figure 3 As shown, the end of the slider 621 near the mounting gap 613 is bent towards the second boss 612 to form a bent portion. The end of the second boss 612 near the mounting gap 613 has an inclined portion. The bent portion and the inclined portion cooperate to improve the support and positioning effect of the slider 621. Furthermore, when the slider 621 separates from the support member 64, the inclined portion will not affect the axial movement of the slider 621 along the slide rail 615 under the elastic force of the elastic member 63. The slider 623 is fixedly connected to the slide cylinder 622 and seals the end of the slide cylinder 622 away from the opening, thereby achieving linkage between the slider 621, the slide cylinder 622, and the slider 623. The elastic member 63 includes a spring, one end of which is connected to one axial end of the slide rail 615, and the other end is connected to the slider 623. When the slider 621 separates from the second protrusion 612, the elastic force of the elastic component 63 drives the slider 623 to move along the axial direction of the slide 615. The movement of the slider 623 drives the slider 621 to move, so that the detection unit 7 can detect the displacement of the slider 621, thereby enabling timely detection of the fire in the early stage of the fire.

[0061] According to an exemplary embodiment, such as Figures 6-15 As shown, this embodiment proposes a fire extinguishing device, which includes an annular shell 1, a storage bottle 3, a puncture mechanism 5, and any of the motion sensing mechanisms proposed in the above embodiments, wherein: as Figure 6 , Figure 7 and Figure 9As shown, the annular housing 1 has an inner annular cavity 14 penetrating its center, and an annular shell cavity 13 is formed inside the annular housing 1. The annular shell cavity 13 is used to contain extinguishing agents, such as a mixture of potassium salt and water. The inner annular cavity 14 has a certain depth, allowing for the concealment of components within it, resulting in a compact structure and aesthetically pleasing appearance. Simultaneously, in the event of a fire, heat can accumulate in the lower part of the inner annular cavity 14, improving the efficiency and accuracy of temperature sensing of the environment surrounding the annular housing 1, thereby enabling timely fire suppression before the fire spreads, ensuring user safety and reducing property damage. The annular housing 1 is preferably made of metal, such as stainless steel, to ensure its normal operation in high-temperature environments. The annular shell cavity 13 communicates with the inner annular cavity 14, and the lower part of the annular housing 1 has at least one mounting port 142 for mounting the extinguishing agent spraying assembly. Figures 9-11 As shown, the fire extinguishing agent spraying assembly includes a nozzle seat 21, a nozzle 23, and a sealing member 24. The nozzle seat 21 is located at the mounting port 142, and the nozzle 23 is located on the nozzle seat 21 and outside the annular housing 1. The nozzle seat 21 has a fire extinguishing agent channel 213 that connects the annular housing 13 to the nozzle 23. The nozzle 23 has multiple spray holes 231, and the fire extinguishing agent entering the nozzle 23 is sprayed out from the spray holes 231. The sealing member 24 can open the passage between the annular housing 13 and the nozzle 23 when the pressure inside the annular housing 13 is greater than a preset pressure, so that the fire extinguishing agent inside the annular housing 13 can be sprayed out through the nozzle 23.

[0062] The annular shell 1 can be a one-piece molded structure or formed by splicing two half-shell sections. In one example, such as... Figures 6-9As shown, the annular shell 1 includes an upper shell 11 and a lower shell 12. The upper shell 11 and the lower shell 12 are arranged opposite each other and fastened together, forming an annular cavity 13. The upper shell 11 includes a first annular curved surface structure with an upward convexity, and the lower shell 12 includes a second annular curved surface structure with a downward convexity. The inner rings of the first annular curved surface structure and the inner rings of the second annular curved surface structure form an inner annular cavity 14. The design of both the upper shell 11 and the lower shell 12 using annular curved surface structures can increase the pressure-bearing capacity of the annular shell 1. The lowest position of the inner ring of the first annular curved surface structure is provided with an upper mounting hole 1151, and the highest position of the inner ring of the second annular curved surface structure is provided with a lower mounting hole 1251. The upper mounting hole 1151 and the lower mounting hole 1251 are arranged opposite each other, and there is a mounting space 143 between the upper mounting hole 1151 and the lower mounting hole 1251. The annular shell 1 of this embodiment has an overall appearance similar to a "donut," which enhances the aesthetics of the overall structure while ensuring the volume of the annular shell cavity 13. It is also compact and occupies little space. The outer edge of the upper shell 11 has a first flange 114, and the outer edge of the lower shell 12 has a second flange 124. The first flange 114 and the second flange 124 are fitted together, increasing the contact area between the upper shell 11 and the lower shell 12, ensuring the stability and sealing of the assembly between them. In a preferred embodiment, the first flange 114 and the second flange 124 are connected by insertion, fasteners, bonding, and / or welding to form a detachable connection, facilitating the assembly of the annular shell 1 and the maintenance of its components.

[0063] like Figures 6-9 As shown, in order to increase the spraying range of the nozzle 23 and prevent the lower shell 12 from blocking the spraying of the agent, it is preferable to set the mounting port 142 at the lowest position of the lower shell 12. When there are multiple mounting ports 142, the multiple mounting ports 142 are spaced apart along the circumferential direction of the lower shell 12.

[0064] The sealing element 24 can have various structural forms. In one example, the sealing element 24 adopts a valve structure, and the opening and closing of the valve structure can be controlled by detecting the pressure value inside the annular shell cavity 13, thereby realizing the opening and closing of the passage between the annular shell cavity 13 and the nozzle 23. In another example, such as... Figure 11 As shown, the sealing component 24 includes a sealing membrane 241 and a limiting ring 242. The sealing membrane 241 is disposed on the limiting ring 242, which limits the sealing membrane 241 to the nozzle seat 21. The sealing membrane 241 can rupture when the pressure inside the annular cavity 13 exceeds a preset pressure. The sealing membrane 241 is, for example, a rubber membrane. The sealing component 24 of this embodiment has a simple structure, requiring no complex structural design, reducing production difficulty and cost, and improving the overall assembly efficiency of the fire extinguishing agent spraying assembly.

[0065] The sealing membrane 241 and the limiting ring 242 can be an integral structure, that is, the sealing membrane 241 is disposed in the inner ring of the limiting ring 242. Alternatively, the sealing membrane 241 can be disposed independently of the limiting ring 242, that is, the sealing membrane 241 and the limiting ring 242 are independent components, and the hardness of the limiting ring 242 is greater than the hardness of the sealing membrane 241. In the assembled state, the sealing member 24 is disposed on the nozzle seat 21 and located between the nozzle seat 21 and the nozzle 23, and the sealing membrane 241 is fixed between the limiting ring 242 and the nozzle seat 21. In a preferred embodiment, a limiting groove is provided on the side of the limiting ring 242 opposite to the sealing membrane 241, and a positioning protrusion ring that mates with the limiting groove is provided on the side of the sealing membrane 241 opposite to the limiting ring 242. In the assembled state of the sealing membrane 241 and the limiting ring 242, the limiting groove and the positioning protrusion ring are positioned and engaged.

[0066] In one example, such as Figure 11 As shown, the sealing membrane 241 includes a sealing membrane body 2411 and an auxiliary groove 2412 formed on the sealing membrane body 2411. The thickness of the sealing membrane body 2411 at the position corresponding to the auxiliary groove 2412 is greater than the thickness at other positions. This ensures a sealing effect on the annular cavity 13 in the non-working state, while also reducing the resistance of the extinguishing agent to break through the sealing membrane 241 when the pressure inside the annular cavity 13 reaches a preset pressure. This ensures that the extinguishing agent can be sprayed from the nozzle 23 in time before the fire spreads, further improving the extinguishing effect and efficiency. The auxiliary groove 2412 can have various structural forms on the sealing membrane body 2411, such as being linear, circular, square, or other regular or irregular shapes.

[0067] In a preferred embodiment, such as Figure 11 As shown, the auxiliary groove 2412 includes multiple linear grooves, which intersect on the sealing membrane body 2411. The intersection of these grooves is located at the center of the sealing membrane body 2411. At this point, the center of the sealing membrane body 2411 is the weakest point of the entire sealing membrane 241. When the pressure in the annular cavity 13 reaches the preset pressure, it is easier for the sealing membrane 241 to be punctured at the intersection of the grooves. Furthermore, the intersection of the grooves at the center of the sealing membrane 241 ensures balanced force distribution at the center of the sealing membrane 241, guaranteeing the sealing reliability of the sealing membrane 241 in non-working states. For example, the sealing membrane body 2411 has two linear grooves in a cross shape. In other embodiments, the sealing membrane body 2411 has four linear grooves in a star shape.

[0068] In some implementations, such as Figure 7 and Figure 12As shown, the fire extinguishing agent spraying assembly includes a connector 41, which comprises an upper connector 412, a base 411, and a lower connector 413 connected in sequence. The base 411 is located in the annular cavity 13 at a position corresponding to the inner annular cavity 14, i.e., in the installation space 143. The upper connector 412 is located at the upper part of the inner annular cavity 14, and the lower connector 413 is located at the lower part of the inner annular cavity 14. A first connecting channel 414 and a second connecting channel 416 are formed within the connector 41. The first connecting channel 414 passes through the upper connector 412 and the lower connector 413, and the second connecting channel 416 is formed within the base 411 and communicates the annular cavity 13 with the first connecting channel 414. To improve the assembly reliability of the connector 41 and the annular cavity 1, in a preferred embodiment, an upper annular groove is formed on the upper end face of the base 411, and a lower annular groove is formed on the lower end face of the base 411. The upper and lower annular grooves are used to accommodate a sealing ring. The upper connector 412 and the lower connector 413 are respectively provided with external threads. The upper nut 42 engages with the external thread of the upper connector 412 to fix the upper half shell 11 between the base 411 and the upper nut 42. The lower nut 43 engages with the external thread of the lower connector 413 to fix the lower half shell 12 between the base 411 and the lower nut 43. The upper connector 412 is used to connect to the storage bottle 3, and the lower connector is used to connect to the temperature-sensing trigger unit 6. The piercing mechanism 5 is disposed in the first connecting channel 414, and the striking pin 53 of the piercing mechanism 5 can move along the axial direction of the first connecting channel 414. When the pressure in the annular cavity 13 is greater than the preset pressure, the temperature-sensing trigger unit 6 can push the piercing mechanism 5 to make the striking pin 53 pierce the storage bottle 3. The propellant in the storage bottle 3 can enter the annular cavity 13 through the first connecting channel 414 and the second connecting channel 416. In a specific example, such as Figure 7 The storage bottle 3 includes a storage bottle body 31 and a bottle cover 32. The outlet end of the storage bottle body 31 is sealed. The bottle cover 32 covers the outside of the storage bottle body 31 and is fixed to the upper nut 42.

[0069] In this embodiment, the inner annular cavity 14 of the annular shell 1 is connected to the annular shell cavity 13. A storage bottle 3 containing a propellant and a puncture mechanism 5 are respectively provided in the upper and lower parts of the inner annular cavity 14. When a fire occurs, the puncture mechanism 5 can puncture the storage bottle 3, allowing the propellant in the storage bottle 3 to enter the annular shell cavity 13. The extinguishing agent in the annular shell cavity 13 can be sprayed out from the nozzle 23 under high pressure. This achieves the goal of storing the extinguishing agent stably in the annular shell cavity 13 at normal pressure when not in operation, and spraying the extinguishing agent out from the nozzle 23 under pressure when a fire occurs, ensuring the fire extinguishing effect. This solves the problem of reduced fire extinguishing effect or even failure of the pressurized fire extinguishing device due to natural pressure relief, and ensures the service life of the fire extinguishing device.

[0070] like Figure 7As shown, the storage bottle 3, the puncture mechanism 5, and the motion sensing mechanism are arranged sequentially from top to bottom within the inner annular cavity 14. In the non-operating state, the pressure within the annular cavity 13 is atmospheric pressure, and the passage between the annular cavity 13 and the nozzle 23 is sealed by the sealing member 24. The storage bottle 3 stores a propellant, and its outlet end is sealed and faces the puncture mechanism 5. The propellant is, for example, an inert gas or liquefied gas; exemplarily, it is liquid carbon dioxide, which allows for stable storage within the storage bottle 3. When the storage bottle 3 is punctured, the liquid carbon dioxide expands and vaporizes due to the instantaneous pressure change, causing a pressure change within the storage bottle. The gaseous carbon dioxide then enters the cavity 13 under pressure. Furthermore, when the extinguishing agent includes a mixture of potassium salt and water, the carbon dioxide reacts with water to produce bicarbonate ions that can decompose grease. In kitchen applications, this is beneficial for removing large amounts of oil fumes generated during kitchen fires.

[0071] like Figure 13 and Figure 14 As shown, the puncture mechanism 5 includes a striking pin 53. The puncture end of the striking pin 53 faces the outlet end and can move towards the outlet end. After the sliding component of the temperature-sensing trigger unit 6 separates from the temperature-sensing component, it will push the striking pin 53 to move towards the outlet end and puncture the outlet end. The propellant in the storage bottle 3 is discharged from the outlet end and enters the annular shell cavity 13. The extinguishing agent in the annular shell cavity 13 is sprayed out by the agent spraying component under pressure.

[0072] In a specific example, such as Figure 14 As shown, the puncture mechanism 5 includes a firing pin sleeve 51, a firing pin base 52, and a firing pin 53. The firing pin sleeve 51 has an internal firing pin sleeve channel 511, and its sidewall has a firing pin sleeve through hole 512. When the puncture mechanism 5 is located within the first connecting channel 414 of the connector 41, the firing pin sleeve through hole 512 connects the firing pin sleeve channel 511 and the first connecting channel 414. The bottle neck of the storage bottle 3 abuts against the top of the firing pin sleeve channel 511. The top of the firing pin sleeve channel 511 has a tapered surface, allowing the bottle neck of the storage bottle 3 to be smoothly installed into the firing pin sleeve channel 511. The firing pin base 52 is slidably disposed within the firing pin sleeve channel 511, with one end of the firing pin base 52 located inside the firing pin sleeve channel 511 and the other end located outside the firing pin sleeve channel 511. The firing pin 53 is fixed to the end of the firing pin base 52 located inside the firing pin sleeve channel 511, and the firing pin 53 can slide with the firing pin base 52 within the firing pin sleeve channel 511. Figure 15As shown, the firing pin 53 has a tubular structure and includes a firing pin body 534. A firing pin channel 531 is formed inside the firing pin body 534. The top end of the firing pin body 534 includes a needle-like end with an inclined surface, used to pierce the outlet end of the storage bottle 3. The needle-like end has a top opening 533. A lateral through hole 532 is formed on the side wall of the firing pin body 534. Both the top opening 533 and the lateral through hole 532 communicate with the firing pin channel 531. In a preferred embodiment, as... Figure 15 As shown, the lateral through-hole 532 includes a serrated through-hole arranged along the axial direction of the firing pin body 534. The serrated through-hole can increase the flow area of ​​the propellant and improve the emission efficiency of the propellant.

[0073] When the end of the firing pin base 52 located outside the firing pin sleeve channel 511 is pushed by the sliding component, the firing pin base 52 drives the firing pin 53 to move upward along the firing pin sleeve channel 511. The firing pin 53 then punctures the outlet end of the storage bottle 3. The propellant in the storage bottle 3 enters the firing pin channel 531, the side through-hole 532, and the firing pin sleeve 51 sequentially through the top opening 533, and finally exits the puncturing mechanism 5 through the firing pin sleeve through-hole 512. The propellant exiting the puncturing mechanism 5 can directly enter the annular cavity 13, or, if the puncturing mechanism 5 is located in the first connecting channel 414 of the connector 41, the propellant exiting the puncturing mechanism 5 enters the annular cavity 13 after passing through the first connecting channel 414 and the second connecting channel 416. Specifically, as shown... Figure 3 As shown, the slide 615 extends through the cylinder 61 along the axial direction of the cylinder 61. When the slide plate 621 of the sliding assembly separates from the second boss 612, the slider 623 moves to the piercing mechanism 5 under the elastic force of the elastic component 63. This pushes the firing pin base 52 of the piercing mechanism 5 to move towards the storage bottle 3. The movement of the firing pin base 52 drives the firing pin 53 to move and pierce the outlet end of the storage bottle 3.

[0074] This embodiment combines a motion sensing mechanism with a fire extinguishing device, enabling automatic fire extinguishing when a fire is detected in a timely manner, effectively protecting the safety of users' lives and property.

[0075] According to an exemplary embodiment, this embodiment proposes an Internet of Things (IoT) home system. The IoT home system includes any of the motion sensing mechanisms or fire extinguishing devices proposed in the above embodiments. In the event of a fire, the IoT home system of this embodiment can automatically shut off gas pipelines, gas stoves, and power supplies, which can, to some extent, prevent the fire from escalating and reduce loss of life and property for users.

[0076] According to an exemplary embodiment, this embodiment proposes a control method for an Internet of Things (IoT) home system. The control method is used to control any of the IoT home systems proposed in the above embodiment, and the control method includes:

[0077] Determine whether the detection unit 7 has detected a displacement signal. If the detection unit 7 has detected a displacement signal, control the IoT home system to switch from the safety scene mode to the fire scene mode.

[0078] In this embodiment, the temperature-sensing trigger unit 6 will generate displacement when it senses that the ambient temperature has reached the set temperature. The detection unit 7 detects the displacement of the temperature-sensing trigger unit 6. When the detection unit 7 detects the displacement signal of the temperature-sensing trigger unit 6, it indicates that a fire is highly likely to occur in the environment where the temperature-sensing trigger unit 6 is located. At this time, it is necessary to cut off the gas pipeline, turn off the gas stove, and cut off the power supply as soon as possible to avoid greater loss of life and property. The IoT home system of this embodiment can preset a safety scene mode and a fire scene mode through a smart terminal. In the safety scene mode, the gas pipeline is allowed to be open, the gas stove is allowed to be turned on, and the power supply is also allowed. In the fire scene mode, the gas pipeline will be automatically cut off, the gas stove will be automatically turned off if it is turned on, and the gas stove will not be allowed to be turned on if it is turned off. The power supply will also be cut off. Under normal circumstances, the IoT home system is in the safety scene mode. When the detection unit 7 detects a displacement signal, it will control the IoT home system to automatically switch from the safety scene mode to the fire scene mode to reduce user losses. In addition, when the motion sensing mechanism is applied to the fire extinguishing device, when the detection unit 7 detects a displacement signal, it will also realize automatic fire extinguishing, thereby effectively protecting the safety of users' lives and property.

[0079] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the following claims.

[0080] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A motion sensing mechanism based on an Internet of Things (IoT) home system, characterized in that, The motion sensing mechanism includes: A cylindrical body (61) has a slide rail (615) arranged along its axial direction inside. One end of the cylindrical body (61) in the axial direction has an opening communicating with the slide rail (615). The cylindrical body (61) includes a first boss (611) and a second boss (612). The first boss (611) and the second boss (612) are arranged on opposite sides of the opening, and there is an installation gap (613) between the first boss (611) and the second boss (612). A temperature-sensing trigger unit (6) includes a temperature-sensing component and a sliding component. The sliding component is movably disposed within the slide rail (615). The temperature-sensing component is in contact with the sliding component. The temperature-sensing component senses the ambient temperature and supports and positions the sliding component when the ambient temperature is lower than a set temperature. When the ambient temperature reaches the set temperature, the temperature-sensing component separates from the sliding component, causing the sliding component to displace. The temperature-sensing component includes a support member (64) and a heat-collecting member (65). The support member (64) is disposed at the opening and is used to support and position the sliding component. The heat-collecting member (65) is connected to the support member (64) and is used to collect ambient heat and can... The ambient heat is transferred to the support member (64), and the support member (64) separates from the sliding component when the temperature of the received heat reaches a set temperature; the support member (64) includes a support column assembly, which is disposed in the installation gap (613). One axial end of the support column assembly is connected to the first boss (611), and the other axial end of the support column assembly supports and positions the sliding component on the side of the second boss (612) facing the first boss (611). The heat collection member (65) is connected to the support column assembly; wherein, the support column assembly includes a thermoplastic alloy part (643), and the set temperature is greater than or equal to the melting point of the thermoplastic alloy part (643); The detection unit (7) is used to detect the displacement signal of the sliding component; Control unit (8), connected to the detection unit (7), the control unit (8) is configured to control the Internet of Things home system to switch from safety scene mode to fire scene mode according to the displacement signal detected by the detection unit (7); The fire scenario modes include at least one of cutting off the gas pipeline, turning off the gas stove, and cutting off the power supply.

2. The motion sensing mechanism based on the Internet of Things home system according to claim 1, characterized in that, The first boss (611) is provided with a threaded hole (6111), the threaded hole (6111) penetrates the first boss (611) in the radial direction of the cylinder (61), and the heat collection component (65) includes heat collection plates. The support column assembly includes a support column (644), an abutment column (642), and a set screw (641). The end of the support column (644) facing away from the threaded hole (6111) is connected to the heat collection plate. A blind hole is opened at the end of the support column (644) facing the threaded hole (6111). The hot melt alloy part (643) and the abutment column (642) are arranged sequentially from the inside to the outside in the blind hole. The set screw (641) is engaged with the threaded hole (6111), and one axial end of the set screw (641) abuts against the abutment column (642). The sliding assembly is supported and positioned between the second boss (612) and the heat collection plate.

3. The motion sensing mechanism based on the Internet of Things home system according to claim 2, characterized in that, The heat collection plate includes a first segment (651) and a second segment (652) connected to each other. The second segment (652) is located in the installation gap (613) and is connected to the end of the support column (644) away from the threaded hole (6111). The first segment (651) is arranged opposite to the end face of the second boss (612) and covers the end face of the second boss (612). The first segment (651) has a plurality of vent holes (6511).

4. The motion sensing mechanism based on the Internet of Things home system according to claim 1, characterized in that, The sliding component includes: A sliding component (62) is movably disposed within the slide rail (615), and the supporting component (64) supports and positions the sliding component (62), and the detection unit (7) detects the displacement signal of the sliding component (62); An elastic component (63) is disposed within the slide rail (615) and connected to the sliding component (62). When the support component (64) supports and positions the sliding component (62), the elastic component (63) is in a deformed state. When the support component (64) separates from the sliding component (62), the elastic force of the elastic component (63) drives the sliding component (62) to move along the axial direction of the slide rail (615).

5. The motion sensing mechanism based on the Internet of Things home system according to claim 4, characterized in that, The sliding component (62) includes a sliding plate (621), a sliding cylinder (622), and a slider (623) arranged sequentially along the axial direction of the slide rail (615). One end of the sliding plate (621) in the length direction is confined within the sliding cylinder (622) and is movably connected to the sliding cylinder (622). The other end of the sliding plate (621) in the length direction extends to the mounting gap (613) and is supported and positioned on the second boss (612) by the support component (64). The slider (623) is fixedly connected to the sliding cylinder (622) and blocks the end of the sliding cylinder (622) away from the opening. The elastic component (63) includes a spring, one end of which is connected to one axial end of the slide rail (615), and the other end is connected to the slider (623).

6. A fire extinguishing device, characterized in that, The fire extinguishing device includes an annular shell (1), a storage bottle (3), a puncture mechanism (5), and a motion sensing mechanism as described in any one of claims 1-5, wherein: The annular shell (1) has an inner annular cavity (14) that penetrates the annular shell (1) at its center. An annular shell cavity (13) is formed inside the annular shell (1). The annular shell cavity (13) is used to contain fire extinguishing agents. The annular shell cavity (13) is connected to the inner annular cavity (14). The lower part of the annular shell (1) is provided with at least one mounting port (142). The mounting port (142) is used to install the agent spraying assembly. The storage bottle (3), the puncture mechanism (5), and the motion sensing mechanism are arranged sequentially from top to bottom in the inner annular cavity (14). The storage bottle (3) is used to store the propellant. The outlet end of the storage bottle (3) is sealed and faces the puncture mechanism (5). The puncture mechanism (5) includes a firing pin (531). The puncture end of the firing pin (531) faces the outlet end and can move towards the outlet end. After the sliding component of the temperature-sensing trigger unit (6) separates from the temperature-sensing component, it will push the firing pin (531) to move towards the outlet end and puncture the outlet end. The propellant in the storage bottle (3) is discharged from the outlet end and enters the annular shell cavity (13). The extinguishing agent in the annular shell cavity (13) is sprayed out by the agent spraying component under pressure.

7. An Internet of Things (IoT) home system, characterized in that, The IoT home system includes the motion sensing mechanism as described in any one of claims 1-5, or includes the fire extinguishing device as described in claim 6.

8. A control method for an Internet of Things (IoT) home system, characterized in that, The control method is used to control the Internet of Things (IoT) home system according to claim 7, and the control method includes: Determine whether the detection unit (7) has detected a displacement signal; When the detection unit (7) detects a displacement signal, it controls the IoT home system to switch from a safety scene mode to a fire scene mode; The fire scenario modes include at least one of cutting off the gas pipeline, turning off the gas stove, and cutting off the power supply.

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