Motion sensing mechanism based on Internet of Things home system and fire extinguishing device

Abstract

The utility model relates to a motion sensing mechanism based on Internet of Things home system, fire extinguishing device and Internet of Things home system, the motion sensing mechanism comprises: a temperature sensing trigger unit, which comprises a temperature sensing assembly and a sliding assembly, the temperature sensing assembly is in contact connection with the sliding assembly, the temperature sensing assembly senses the ambient temperature, and the sliding assembly is in contact connection with the sliding assembly; the sliding component is supported and positioned under the condition that the environment temperature is lower than the set temperature, and is separated from the sliding component under the condition that the environment temperature reaches the set temperature, and the sliding component generates displacement; the detection unit is used for detecting a displacement signal of the sliding assembly; and the control unit is connected with the detection unit, and the control unit is configured to control the Internet of Things home system to be switched from the safety scene mode to the fire scene mode according to the displacement signal detected by the detection unit. According to the utility model, automatic turn-off of the gas pipeline, the gas stove, the power supply and the like can be realized in case of fire, fire intensification can be avoided to a certain extent, and life and property loss of users is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of Internet of Things, and in particular to a motion sensing mechanism and a fire extinguishing device based on an Internet of Things home system. Background Art

[0002] In the related technology, by installing a fixed temperature-sensing fire extinguishing device on the indoor roof, it can automatically extinguish the fire when a fire occurs, thereby effectively protecting the lives and property of users. With the rapid development of Internet of Things technology, smart fire monitoring systems have developed rapidly in recent years. The role of fire monitoring systems is generally to detect the occurrence of fires, and then alert relevant personnel to retreat by issuing alarms. However, when a fire occurs, it is impossible to automatically shut down gas, power, etc., which is very likely to cause the fire to spread rapidly, seriously damaging the lives and property of users. Utility Model Content

[0003] In order to overcome the problems existing in the related art, the first aspect of the present invention proposes a motion sensing mechanism based on an Internet of Things home system, and the motion sensing mechanism includes:

[0004] A temperature-sensing trigger unit, comprising a temperature-sensing component and a sliding component, wherein the temperature-sensing component is in contact with and connected to 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, and separates from the sliding component when the ambient temperature reaches the set temperature, and the sliding component is displaced;

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

[0006] A control unit connected to the detection unit, the control unit being configured to control the IoT home system to switch from a safety scene mode to a fire scene mode according to a displacement signal detected by the detection unit;

[0007] The fire scene mode includes at least one of cutting off the gas pipeline, shutting down 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 cylinder is provided with a slideway arranged along its axial direction, the sliding component is movably arranged in the slideway, and one axial end of the cylinder has an opening connected to the slideway; the temperature sensing component includes:

[0009] A supporting component, disposed at the opening, for supporting and positioning the sliding assembly;

[0010] A heat collecting component is connected to the supporting component, and is used to collect ambient heat and transfer the ambient heat to the supporting component. The supporting component is separated from the sliding component when the temperature of the received heat reaches a set temperature.

[0011] In some embodiments, the cylinder includes a first boss and a second boss, the first boss and the second boss are disposed on opposite sides of the opening, and there is a mounting gap between the first boss and the second boss;

[0012] The support component includes a support column assembly, the support column assembly is arranged in the installation gap, one axial end of the support column assembly is connected to the first boss, the other axial end of the support column assembly supports and positions the sliding assembly on the side of the second boss facing the first boss, and the heat collecting component is connected to the support column assembly;

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

[0014] In some embodiments, the first boss is provided with a threaded hole, the threaded hole penetrates the first boss along the radial direction of the cylinder, and the heat collecting component comprises a heat collecting sheet;

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

[0016] In some embodiments, the heat collecting plate includes a first segment and a second segment connected to each other, the second segment is located in the installation gap and connected to the end of the support column away from the threaded hole, the first segment is arranged opposite to the end face of the second boss and covers the end face of the second boss, and the first segment is provided with a plurality of ventilation holes.

[0017] In some embodiments, the sliding assembly comprises:

[0018] a sliding component, which is movably disposed in the slideway, and the supporting component supports and positions the sliding component, and the detecting unit detects a displacement signal of the sliding component;

[0019] An elastic component is arranged in the slideway 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 is separated from the sliding component, the elastic force of the elastic component drives the sliding component to move along the axial direction of the slideway.

[0020] In some embodiments, the sliding component includes a sliding sheet, a sliding cylinder and a sliding block arranged in sequence along the axial direction of the slideway, wherein one end of the sliding sheet in the length direction is limited in the sliding cylinder and is movably connected to the sliding cylinder, the other end of the sliding sheet in the length direction extends to the installation gap and is supported by the supporting component and positioned on the second boss, and the sliding block is fixedly connected to the sliding cylinder and blocks one end of the sliding cylinder away from the opening;

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

[0022] The second aspect of the present invention provides a fire extinguishing device, which includes an annular housing, a storage bottle, a puncturing mechanism, and any action sensing mechanism provided in the first aspect of the present invention, wherein:

[0023] The center of the annular shell is provided with an inner ring cavity penetrating the annular shell, and the interior of the annular shell forms an annular shell cavity, the annular shell cavity is used to accommodate the fire extinguishing agent, the annular shell cavity is communicated with the inner ring cavity, the lower part of the annular shell is provided with at least one installation port, the installation port is provided with an agent spraying assembly, the storage bottle, the puncture mechanism and the action sensing mechanism are sequentially arranged in the inner ring cavity from top to bottom;

[0024] The storage bottle is used to store propellant, and the outlet end of the storage bottle is sealed and faces the puncturing mechanism. The puncturing mechanism includes a striker, and the puncturing end of the striker faces the outlet end and can move toward the outlet end. After the sliding component of the temperature-sensing trigger unit is separated from the temperature-sensing component, it will push the striker to move toward the outlet end and puncture the outlet end. The propellant in the storage bottle is discharged from the outlet end and enters the annular shell cavity. The fire extinguishing agent in the annular shell cavity is sprayed out through the agent spraying component under pressure.

[0025] The technical solution of the utility model can include the following beneficial effects: the utility model detects the displacement movement of the sliding component through the detection unit, so as to detect the fire in time, and controls the Internet of Things home system to automatically enter the fire scene mode at the early stage of the fire, so as to realize the shutdown of gas, gas stove and power supply, etc., which can avoid the further aggravation of the fire to a certain extent and reduce the loss of life and property of users.

[0026] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0028] Figure 1 is a structural diagram of a motion sensing mechanism according to an exemplary embodiment.

[0029] Figure 2 is a front view of a temperature sensing trigger unit according to an exemplary embodiment.

[0030] Figure 3 yes Figure 2 Sectional view along AA direction.

[0031] Figure 4 The diagram is a state diagram showing that a sliding assembly loses the supporting and positioning function of a supporting component according to an exemplary embodiment.

[0032] Figure 5 is an exploded view of a partial structure of a temperature sensing trigger unit according to an exemplary embodiment.

[0033] Figure 6 is a structural diagram of a fire extinguishing device according to an exemplary embodiment.

[0034] Figure 7 is a cross-sectional view showing a partial structure of a fire extinguishing device according to an exemplary embodiment.

[0035] Figure 8 FIG. 4 is an exploded view of a housing of a fire extinguishing device according to an exemplary embodiment.

[0036] Fig. 9 The figure is a cross-sectional view showing the assembly of a housing, a connecting piece and a nozzle holder of a fire extinguishing device according to an exemplary embodiment.

[0037] Fig.10 is a structural diagram of a nozzle of a fire extinguishing device according to an exemplary embodiment.

[0038] Fig.11 is a structural diagram of a blocking member of a fire extinguishing device according to an exemplary embodiment.

[0039] Fig.12 is a structural diagram of a connecting piece of a fire extinguishing device according to an exemplary embodiment.

[0040] Fig.13 is a structural diagram of a puncturing mechanism of a fire extinguishing device according to an exemplary embodiment.

[0041] Fig.14 is a cross-sectional view of a piercing mechanism of a fire extinguishing device according to an exemplary embodiment.

[0042] Fig.15 is a structural diagram of a striker of a fire extinguishing device according to an exemplary embodiment.

[0043] The reference numerals are as follows:

[0044] 1. Annular shell; 11. Upper half shell; 12. Lower half shell; 13. Annular shell cavity; 14. Inner ring 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. Drug channel; 23. Nozzle; 231. Spray hole; 24. Blocking piece; 241. Sealing film; 2411. Sealing film 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 Needle sleeve; 511, striker sleeve channel; 512, striker sleeve through hole; 52, striker base; 53, striker; 531, striker channel; 532, lateral through hole; 533, top opening; 534, striker body; 6, temperature sensing trigger unit; 61, cylinder; 611, first boss; 6111, threaded hole; 612, second boss; 613, installation gap; 615, slide; 62, sliding component; 621, slide; 622, slide; 623, slider; 63, elastic component; 64, supporting component; 641, top screw; 642, abutment column; 643, hot melt alloy part; 644, supporting column; 65, heat collecting component; 651, first segment; 652, second segment; 6511, vent; 66, gasket; 7, detection unit; 8, control unit. DETAILED DESCRIPTION

[0045] Here, exemplary embodiments will be described in detail, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the utility model. Instead, they are only examples of devices and methods consistent with some aspects of the utility model as detailed in the attached claims.

[0046] The present embodiment is described in detail below in conjunction with the accompanying drawings. The following embodiments and examples may be combined with each other unless there is any conflict.

[0047] According to an exemplary embodiment, Figure 1-Figure 5 As shown, this embodiment proposes a motion sensing mechanism based on an Internet of Things home system, the motion sensing mechanism includes a temperature sensing trigger unit 6, a detection unit 7 and a control unit 8, wherein the temperature sensing trigger unit 6 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 the set temperature, and separates from the sliding component when the ambient temperature reaches the set temperature, and the sliding component will produce displacement, the set temperature is the lowest temperature in the event of a fire, and the ambient temperature can be determined by directly detecting the ambient temperature or by melting the hot melt alloy. The detection unit 7 is used to detect the displacement signal of the sliding component, and the detection unit 7 is, for example, a displacement sensor. The control unit 8 is connected to the detection unit 7, and the control unit 8 is configured to control the Internet of Things home system to switch from a safety scene mode to a fire scene mode according to the displacement signal detected by the detection unit 7, and 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 detection unit 7 detects the displacement of the sliding component, so that the fire can be detected in time, and the Internet of Things home system is controlled to automatically enter the fire scene mode at the early stage of the fire, so that the gas, gas stove and power supply can be automatically shut down, which can avoid the fire from further aggravating to a certain extent and reduce the loss of life and property of users.

[0048] In some embodiments, Figure 1-Figure 5 As shown, the motion sensing mechanism includes a cylinder 61, and the temperature sensing component includes a support component 64 and a heat collecting component 65, wherein the cylinder 61 is provided with a slideway 615 arranged along its axial direction, and the sliding component is movably arranged in the slideway 615, and at least one end of the cylinder 61 in the axial direction has an opening connected to the slideway 615, and the support component 64 is arranged at the opening for supporting and positioning the sliding component. In one example, an opening is provided at one end of the cylinder 61 in the axial direction, and the other end is blocked, and the support component 64 is arranged at the opening. In other embodiments, the slideway 615 runs through the cylinder 61, that is, openings are provided at both ends of the cylinder 61 in the axial direction, and the support component 64 is arranged at any one of the openings in the axial direction of the cylinder 61. The heat collecting component 65 is connected to the support component 64, and the heat collecting component 65 is used to collect environmental heat and can transfer environmental heat to the support component 64. When the temperature of the heat received by the support component 64 reaches the set temperature, it means that the environmental temperature is high at this time, and a fire is likely to occur. At this time, the support component 64 is separated from the sliding component.

[0049] In a specific example, if Figure 1 and Figure 3As shown, the cylinder 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, the support component 64 includes a support column assembly, the support column assembly is arranged 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 assembly on the side of the second boss 612 facing the first boss 611, and the heat collecting component 65 is connected to the support column assembly, wherein the support column assembly includes a hot melt alloy part 643, and the set temperature is, for example, greater than or equal to the melting point of the hot melt alloy part 643. When the temperature of the heat received by the support component 64 reaches the set temperature, the hot melt alloy part 643 will melt and cause the support to collapse, and the support component 64 cannot play a supporting and positioning role for the sliding assembly, and the support component 64 is separated from the sliding assembly, such as Figure 4 The state diagram of the middle sliding assembly losing the supporting and positioning function of the supporting part 64.

[0050] In one example, the support column assembly includes a support column 644, and the support column 644 is made of a hot-melt alloy in its entirety, or a portion of the support column 644 is made of a hot-melt alloy. The support column 644 is located between the first boss 611 and the second boss 612, and supports and positions the sliding component 62 on the second boss 612. In another example, Figure 3 As shown, the first boss 611 is provided with a threaded hole 6111, and the threaded hole 6111 penetrates the first boss 611 along the radial direction of the cylinder 61, and the heat collecting component 65 includes a heat collecting sheet. The support column assembly also includes a support column 644, an abutment column 642 and a top screw 641, and the end of the support column 644 that is away from the threaded hole 6111 is connected to the heat collecting sheet, and the sliding assembly is located between the second boss 612 and the heat collecting sheet. The end of the support column 644 that faces the threaded hole 6111 is provided with a blind hole, and the hot melt alloy part 643 and the abutment column 642 are sequentially arranged in the blind hole from the inside to the outside, and the top screw 641 cooperates with the threaded hole 6111 and the top screw 641 is abutted against the abutment column 642, so that the sliding assembly is supported and positioned between the second boss 612 and the heat collecting sheet.

[0051] 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 arranged 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 shrink and separate from the sliding component.

[0052] In some embodiments, Figure 1 , Figure 3-Figure 5As shown, the heat collecting sheet 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 connected to the end of the support column 644 away from the threaded hole 6111, and the first segment 651 is located between the sliding assembly and the support column 644. The first segment 651 is arranged opposite to the end surface of the second boss 612 and covers the end surface of the second boss 612. The first segment 651 is used to sense the ambient heat and transfer the heat to the second segment 652. The second segment 652 further transfers the heat to the support column 644, so that the hot melt alloy part 643 in the support column 644 melts, so that the support component 64 loses the support and positioning of the sliding assembly, and the sliding assembly will be displaced. The second segment 652 is provided with a plurality of vents 6511, and the plurality of vents 6511 can reduce thermal resistance and improve the temperature distribution uniformity of both sides of the first segment 651 and the support column 644, so that the heat is concentrated on the support column 644. The heat collecting sheet, 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 assembly to increase the contact area between the second segment 652 and the sliding assembly, increase friction, and further enhance the supporting and positioning effect of the sliding assembly.

[0053] In some embodiments, 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 arranged in the slideway 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 arranged in the slideway 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 is separated 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 slideway 615.

[0054] Preferably, Figure 3-Figure 5As shown, the sliding component 62 includes a slide 621, a slide cylinder 622 and a slider 623 arranged in sequence along the axial direction of the slideway 615, wherein one end of the slide 621 in the length direction is limited in the slide cylinder 622 and is movably connected to the slide cylinder 622, thereby reducing the stress between the slide 621 and the slide cylinder 622, and avoiding the movement trajectory of the slide 621 in the slideway 615 from being offset when the support component 64 loses the support and limit on the slide 621, thereby preventing the elastic component 63 from being blocked from popping out, thereby ensuring the reliability of the entire sliding assembly. One end of the slide 621 located in the slide cylinder 622 extends along the width direction of the slide 621 to form a limiting portion, and the limiting portion cooperates with the end of the slide cylinder 622 close to the opening to prevent the slide 621 from detaching from the slide cylinder 622. The other end of the slide 621 in the length direction extends to the installation gap 613 and is supported by the support component 64 to be positioned on the second boss 612. The detection unit 7 detects the displacement signals of the slide 621, the slide cylinder 622 and / or the slider 623.

[0055] Preferably, Figure 3 As shown, one end of the slide 621 near the installation gap 613 is bent toward the second boss 612 to form a bent portion, and the end of the second boss 612 near the installation gap 613 is provided with an inclined portion, and the bent portion cooperates with the inclined portion to enhance the supporting and positioning effect of the slide 621, and when the slide 621 is separated from the support component 64, the inclined portion will not affect the axial movement of the slide 621 along the slideway 615 under the elastic force of the elastic component 63. The slider 623 is fixedly connected to the slide 622 and blocks the end of the slide 622 away from the opening to achieve linkage between the slide 621, the slide 622 and the slider 623. The elastic component 63 includes a spring, one end of which is connected to one axial end of the slideway 615, and the other end is connected to the slider 623. When the slide 621 is separated from the second boss 612, the elastic force of the elastic component 63 drives the slider 623 to move along the axial direction of the slideway 615, and the movement of the slider 623 drives the slide 621 to move, so that the detection unit 7 can detect the displacement of the slide 621, thereby detecting the fire in time at the early stage of the fire.

[0056] According to an exemplary embodiment, Figure 6-Figure 15 As shown, this embodiment proposes a fire extinguishing device, which includes an annular housing 1, a storage bottle 3, a puncture mechanism 5 and any action sensing mechanism proposed in the above embodiments, wherein: Figure 6 , Figure 7 and Fig. 9As shown, an inner ring cavity 14 penetrating the annular shell 1 is provided at the center of the annular shell 1, and an annular shell cavity 13 is formed inside the annular shell 1. The annular shell cavity 13 is used to accommodate a fire extinguishing agent, and the fire extinguishing agent includes, for example, a mixture of potassium salt and water. The inner ring cavity 14 has a certain depth, which can hide the components arranged therein, and has a compact structure and beautiful appearance. At the same time, when a fire occurs, heat can also be gathered at the lower part of the inner ring cavity 14, so as to improve the efficiency and accuracy of the temperature perception of the environment in which the annular shell 1 is located, so that the fire can be extinguished in time before the fire spreads, thereby ensuring the life safety of the user and reducing the property loss of the user. The annular shell 1 is preferably made of metal, such as stainless steel, so as to ensure that the annular shell 1 can be used normally in a high temperature environment. The annular shell cavity 13 is connected to the inner ring cavity 14, and the lower part of the annular shell 1 is provided with at least one mounting port 142, and the mounting port 142 is used to install the agent spraying component. As shown Figure 9-11 As shown, the agent spraying assembly includes a nozzle seat 21, a nozzle 23 and a blocking member 24. The nozzle seat 21 is arranged at the mounting opening 142. The nozzle 23 is arranged at the nozzle seat 21 and is located outside the annular housing 1. An agent channel 213 is arranged in the nozzle seat 21. The agent channel 213 connects the annular housing cavity 13 with the nozzle 23. The nozzle 23 is provided with a plurality of spray holes 231. The fire extinguishing agent entering the nozzle 23 is sprayed out from the spray holes 231. The blocking member 24 can open the passage between the annular housing cavity 13 and the nozzle 23 when the pressure in the annular housing cavity 13 is greater than the preset pressure, so that the fire extinguishing agent in the annular housing cavity 13 is sprayed out through the nozzle 23.

[0057] The annular shell 1 may be an integrally formed structure or may be formed by splicing two half shells. Figure 6-Figure 9As shown, the annular shell 1 includes an upper half shell 11 and a lower half shell 12. The upper half shell 11 and the lower half shell 12 are arranged opposite to each other and buckled together. The upper half shell 11 and the lower half shell 12 enclose an annular shell cavity 13. The upper half shell 11 includes a first annular curved surface structure that is convexly arranged, and the lower half shell 12 includes a second annular curved surface structure that is convexly arranged. The inner ring of the first annular curved surface structure and the inner ring of the second annular curved surface structure enclose an inner annular cavity 14. The upper half shell 11 and the lower half shell 12 both adopt the design of the annular curved surface structure to 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 to each other, and there is a mounting space 143 between the upper mounting hole 1151 and the lower mounting hole 1251. The overall appearance of the annular shell 1 of this embodiment is similar to a "donut" shape, which further improves the aesthetics of the overall structure while ensuring the volume of the annular shell cavity 13. At the same time, the structure is compact and occupies little space. Among them, the outer edge of the upper half shell 11 is provided with a first flange 114, and the outer edge of the lower half shell 12 is provided with a second flange 124. The first flange 114 and the second flange 124 are arranged in a close fit, which increases the contact area between the upper half shell 11 and the lower half shell 12, and ensures the assembly stability and connection sealing between the upper half shell 11 and the lower half shell 12. In a preferred embodiment, the first flange 114 and the second flange 124 are detachably connected by plugging, connecting with a fixing, bonding and / or welding to facilitate the assembly of the annular shell 1 and the maintenance of various structural components.

[0058] like Figure 6-Figure 9 As shown, in order to improve the spraying range of the nozzle 23 and avoid the lower half shell 12 blocking the spraying of the medicine, the installation port 142 is preferably set at the lowest position of the lower half shell 12. When there are multiple installation ports 142, the multiple installation ports 142 are spaced apart along the circumferential direction of the lower half shell 12.

[0059] There are many structural forms of the blocking member 24. In one example, the blocking member 24 adopts a valve structure, and can control the opening and closing of the valve structure by detecting the pressure value in the annular shell chamber 13, thereby realizing the opening and closing of the passage between the annular shell chamber 13 and the nozzle 23. Fig.11 As shown, the blocking member 24 includes a sealing film 241 and a limiting ring 242. The sealing film 241 is arranged on the limiting ring 242. The limiting ring 242 limits the sealing film 241 to the nozzle seat 21. The sealing film 241 can be broken when the pressure in the annular shell cavity 13 is greater than the preset pressure. The sealing film 241 is, for example, a rubber film. The blocking member 24 of this embodiment has a simple structure and does not require a complex structural design, which reduces the production difficulty and production cost and improves the overall assembly efficiency of the fire extinguishing agent spraying assembly.

[0060] The sealing film 241 and the limiting ring 242 can be an integrated structure, that is, the sealing film 241 is arranged in the inner ring of the limiting ring 242. The sealing film 241 can also be arranged independently of the limiting ring 242, that is, the sealing film 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 film 241. In the assembled state, the blocking member 24 is arranged on the nozzle seat 21 and is located between the nozzle seat 21 and the nozzle 23, and the sealing film 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 film 241, and a positioning convex ring matching the limiting groove is provided on the side of the sealing film 241 opposite to the limiting ring 242. When the sealing film 241 and the limiting ring 242 are assembled, the limiting groove and the positioning convex ring are positioned and matched.

[0061] In one example, if Fig.11 As shown, the sealing film 241 includes a sealing film body 2411 and an auxiliary groove 2412 formed on the sealing film body 2411. The thickness of the sealing film body 2411 at the position corresponding to the auxiliary groove 2412 is greater than the thickness at other positions, so that the sealing effect of the annular shell cavity 13 can be ensured in the non-working state, and the resistance of the fire extinguishing agent to break through the sealing film 241 can be reduced when the pressure in the annular shell cavity 13 reaches a preset pressure, so as to ensure that the fire extinguishing agent can be sprayed out from the nozzle 23 in time before the fire spreads, further improving the fire extinguishing effect and efficiency. The auxiliary groove 2412 on the sealing film body 2411 has various structural forms, for example, the auxiliary groove 2412 is linear, circular, square or other regular or irregular shapes.

[0062] In a preferred embodiment, Fig.11 As shown, the auxiliary groove 2412 includes a plurality of linear grooves, which are cross-arranged on the sealing film body 2411, and the intersection of the plurality of linear grooves is located at the center of the sealing film body 2411. At this time, the center of the sealing film body 2411 is the weakest part of the entire sealing film 241. When the pressure of the annular shell cavity 13 reaches the preset pressure, it is easier to break the sealing film 241 at the intersection of the plurality of linear grooves. And the intersection of the plurality of linear grooves is arranged at the center of the sealing film 241, which can ensure that the center of the sealing film 241 is subjected to balanced force and ensure the sealing reliability of the sealing film 241 in a non-working state. Exemplarily, the sealing film body 2411 is provided with two linear grooves, and the two linear grooves are in a "cross" structure. In other embodiments, the sealing film body 2411 is provided with four linear grooves, and the four linear grooves are in a "rice" structure.

[0063] In some embodiments, Figure 7 and Fig.12As shown, the fire extinguishing agent spraying assembly includes a connector 41, which includes an upper connector 412, a base 411 and a lower connector 413 connected in sequence. The base 411 is arranged at a position of the annular shell cavity 13 corresponding to the inner ring cavity 14, that is, arranged in the installation space 143. The upper connector 412 is located at the upper part of the inner ring cavity 14, and the lower connector 413 is located at the lower part of the inner ring cavity 14. A first connecting channel 414 and a second connecting channel 416 are formed in the connector 41. The first connecting channel 414 runs through the upper connector 412 and the lower connector 413. The second connecting channel 416 is formed in the base 411 and connects the annular shell cavity 13 with the first connecting channel 414. In order to improve the assembly reliability of the connector 41 and the annular shell 1, in a preferred embodiment, an upper annular groove is formed on the upper end surface of the base 411, and a lower annular groove is formed on the lower end surface of the base 411. The upper annular groove and the lower annular groove are used to accommodate a sealing ring. The outer parts of the upper connector 412 and the lower connector 413 are respectively provided with external threads. The upper nut 42 cooperates with the external threads 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 cooperates with the external threads 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 puncturing mechanism 5 is arranged in the first connecting channel 414, and the striker 53 of the puncturing mechanism 5 can move along the axial direction of the first connecting channel 414. The temperature-sensing trigger unit 6 can push the puncturing mechanism 5 to make the striker 53 puncture the storage bottle 3 when the pressure in the annular shell cavity 13 is greater than the preset pressure. The propellant in the storage bottle 3 can enter the annular shell cavity 13 after passing through the first connecting channel 414 and the second connecting channel 416. In a specific example, 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, and the bottle cover 32 is covered on the outside of the storage bottle body 31 and fixed to the upper nut 42 .

[0064] The inner ring cavity 14 of the annular shell 1 of the present embodiment is connected with the annular shell cavity 13. A storage bottle 3 containing a propellant and a puncture mechanism 5 are respectively arranged at the upper and lower parts of the inner ring cavity 14. When a fire occurs, the puncture mechanism 5 can puncture the storage bottle 3, so that the propellant in the storage bottle 3 enters the annular shell cavity 13, and the fire extinguishing agent in the annular shell cavity 13 can be sprayed out from the nozzle 23 under the action of high pressure, so that the fire extinguishing agent is stably stored in the annular shell cavity 13 at normal pressure when not in operation, and the fire extinguishing agent is sprayed out from the nozzle 23 under pressurization when a fire occurs, thereby ensuring the fire extinguishing effect, solving the problem that the fire extinguishing effect of the pressure storage type fire extinguishing device is reduced or even fails due to natural pressure relief, and ensuring the service life of the fire extinguishing device.

[0065] like Figure 7As shown, the storage bottle 3, the puncture mechanism 5 and the motion sensing mechanism are sequentially arranged in the inner annular cavity 14 from top to bottom. In the non-working state, the pressure in the annular shell cavity 13 is normal pressure, and the passage between the annular shell cavity 13 and the nozzle 23 is blocked by the blocking member 24. The storage bottle 3 stores a propellant, and the outlet end of the storage bottle 3 is sealed and faces the puncture mechanism 5. The propellant is, for example, an inert gas or a liquefied gas. Exemplarily, the propellant is liquid carbon dioxide, which can be stably stored in the storage bottle 3. When the storage bottle 3 is punctured, the liquid carbon dioxide will expand and gasify due to the instantaneous pressure change, thereby causing the pressure in the storage bottle to change, and the gaseous carbon dioxide enters the shell cavity 13 under the action of pressure. And in the case where the fire extinguishing agent includes a mixture of potassium salt and water, carbon dioxide reacts with water to produce bicarbonate ions that can decompose grease. In the kitchen application scenario, it is helpful to remove a large amount of oil smoke generated when the kitchen is on fire.

[0066] like Fig.13 and Fig.14 As shown, the puncturing mechanism 5 includes a striker 53, the puncturing end of the striker 53 faces the outlet end and can move toward the outlet end. After the sliding component of the temperature sensing trigger unit 6 is separated from the temperature sensing component, it will push the striker 53 to move toward 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 fire extinguishing agent in the annular shell cavity 13 is sprayed out through the agent spraying component under pressure.

[0067] In a specific example, if Fig.14 As shown, the puncturing mechanism 5 includes a striker sleeve 51, a striker base 52 and a striker 53. A striker sleeve channel 511 is formed inside the striker sleeve 51, and a striker sleeve through hole 512 is formed on the side wall of the striker sleeve 51. When the puncturing mechanism 5 is arranged in the first connecting channel 414 of the connecting member 41, the striker sleeve through hole 512 connects the striker sleeve channel 511 with the first connecting channel 414. The bottle mouth of the storage bottle 3 abuts against the top of the striker sleeve channel 511. The top of the striker sleeve channel 511 is formed with a tapered surface, so that the bottle mouth of the storage bottle 3 can be smoothly installed in the striker sleeve channel 511. The striker base 52 is slidably disposed in the striker sleeve passage 511, and one end of the striker base 52 in the length direction is located in the striker sleeve passage 511, and the other end is located outside the striker sleeve passage 511. The striker 53 is fixed to the end of the striker base 52 located in the striker sleeve passage 511, and the striker 53 can slide in the striker sleeve passage 511 along with the striker base 52. Fig.15As shown, the striker 53 is a tubular structure, comprising a striker body 534, the striker body 534 having a striker channel 531 formed therein, the top end of the striker body 534 comprising a puncture end having an inclined surface, the puncture end being used to puncture the outlet end of the storage bottle 3, and the puncture end being provided with a top opening 533, the side wall of the striker body 534 being formed with a lateral through hole 532, the top opening 533 and the lateral through hole 532 being both in communication with the striker channel 531. In a preferred embodiment, as Fig.15 As shown, the lateral through hole 532 includes a serrated through hole arranged along the axial direction of the striker body 534. The serrated through hole can increase the flow area of ​​the propellant and improve the discharge efficiency of the propellant.

[0068] When one end of the striker base 52 located outside the striker sleeve channel 511 is subjected to the thrust of the sliding assembly, the striker base 52 drives the striker 53 to move upward along the striker sleeve channel 511, and then the striker 53 can pierce the outlet end of the storage bottle 3, and the propellant in the storage bottle 3 enters the striker channel 531, the lateral through hole 532, and the striker sleeve 51 in sequence through the top opening 533, and is finally discharged from the puncturing mechanism 5 through the striker sleeve through hole 512. The propellant discharged from the puncturing mechanism 5 can directly enter the annular shell cavity 13, or when the puncturing mechanism 5 is arranged in the first connecting channel 414 of the connecting member 41, the propellant discharged from the puncturing mechanism 5 enters the annular shell cavity 13 after passing through the first connecting channel 414 and the second connecting channel 416. Specifically, as Figure 3 As shown, the slideway 615 penetrates the cylinder 61 along the axial direction of the cylinder 61. When the slide 621 of the sliding assembly is separated from the second boss 612, the slider 623 moves to the puncturing mechanism 5 under the elastic force of the elastic component 63, and pushes the striker base 52 of the puncturing mechanism 5 to move toward the storage bottle 3. The movement of the striker base 52 drives the striker 53 to move to puncture the outlet end of the storage bottle 3.

[0069] This embodiment combines the motion sensing mechanism with the fire extinguishing device, so that automatic fire extinguishing can be achieved when the fire is detected in time, effectively protecting the life and property safety of users.

[0070] According to an exemplary embodiment, this embodiment proposes an Internet of Things home system, which includes any motion sensing mechanism proposed in the above embodiment, or any fire extinguishing device proposed in the above embodiment. The Internet of Things home system of this embodiment can realize automatic shutdown of gas pipelines, gas stoves, power supplies, etc. when a fire occurs, which can avoid the fire from getting worse to a certain extent and reduce the loss of life and property of users.

[0071] After considering the specification and practicing the embodiments disclosed herein, those skilled in the art will easily think of other embodiments of the utility model. This application is intended to cover any variation, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary technical means in the art that are not disclosed in the present disclosure. The description and examples are to be regarded as exemplary only, and the true scope and spirit of the utility model are indicated by the following claims.

[0072] It should be understood that the present invention is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A motion sensing mechanism based on an Internet of Things home system, characterized in that: The motion sensing mechanism comprises: A temperature sensing trigger unit (6), comprising a temperature sensing component and a sliding component, wherein the temperature sensing component is in contact with and connected to 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, and separates from the sliding component when the ambient temperature reaches the set temperature, causing the sliding component to move; A detection unit (7), used for detecting a displacement signal of the sliding component; A control unit (8) connected to the detection unit (7), the control unit (8) being configured to control the Internet of Things home system to switch from a safety scene mode to a fire scene mode according to a displacement signal detected by the detection unit (7); The fire scene mode includes at least one of cutting off the gas pipeline, shutting down 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 is characterized in that: The motion sensing mechanism comprises a cylinder (61), a slideway (615) arranged along the axial direction of the cylinder (61) is arranged inside the cylinder (61), the sliding component is movably arranged in the slideway (615), and one axial end of the cylinder (61) has an opening connected to the slideway (615); the temperature sensing component comprises: A supporting component (64) is arranged at the opening and is used to support and position the sliding assembly; A heat collecting component (65) is connected to the support component (64). The heat collecting component (65) is used to collect ambient heat and transfer the ambient heat to the support component (64). The support component (64) is separated from the sliding component when the temperature of the received heat reaches a set temperature.

3. The motion sensing mechanism based on the Internet of Things home system according to claim 2 is characterized in that: The cylinder (61) comprises a first boss (611) and a second boss (612), wherein the first boss (611) and the second boss (612) are arranged on two opposite sides of the opening, and an installation gap (613) is provided between the first boss (611) and the second boss (612); The support component (64) comprises a support column assembly, the support column assembly is arranged 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 assembly on the side of the second boss (612) facing the first boss (611), and the heat collecting component (65) is connected to the support column assembly; Wherein, the support column assembly includes a hot-melt alloy part (643), and the set temperature is greater than or equal to the melting point of the hot-melt alloy part (643).

4. The motion sensing mechanism based on the Internet of Things home system according to claim 3 is characterized in that: The first boss (611) is provided with a threaded hole (6111), the threaded hole (6111) penetrates the first boss (611) along the radial direction of the cylinder (61), and the heat collecting component (65) comprises a heat collecting sheet; The support column assembly includes a support column (644), an abutment column (642) and a top screw (641); the end of the support column (644) facing away from the threaded hole (6111) is connected to the heat collecting plate; the end of the support column (644) facing the threaded hole (6111) is provided with a blind hole; the hot melt alloy part (643) and the abutment column (642) are sequentially arranged in the blind hole from the inside to the outside; the top screw (641) cooperates with the threaded hole (6111) and one axial end of the top screw (641) abuts against the abutment column (642); the sliding assembly is supported and positioned between the second boss (612) and the heat collecting plate.

5. The motion sensing mechanism based on the Internet of Things home system according to claim 4 is characterized in that: The heat collecting plate comprises a first segment (651) and a second segment (652) connected to each other, the second segment (652) being located in the installation gap (613) and connected to an end of the support column (644) facing away from the threaded hole (6111), the first segment (651) being arranged opposite to the end surface of the second boss (612) and covering the end surface of the second boss (612), and the first segment (651) being provided with a plurality of ventilation holes (6511).

6. The motion sensing mechanism based on the Internet of Things home system according to claim 3 is characterized in that: The sliding assembly comprises: A sliding component (62) is movably arranged in the slideway (615), and the supporting component (64) supports and positions the sliding component (62), and the detecting unit (7) detects a displacement signal of the sliding component (62); The elastic component (63) is arranged in the slideway (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) is separated 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 slideway (615).

7. The motion sensing mechanism based on the Internet of Things home system according to claim 6 is characterized in that: The sliding component (62) comprises a sliding piece (621), a sliding cylinder (622) and a sliding block (623) which are sequentially arranged along the axial direction of the slideway (615), wherein one end of the sliding piece (621) in the length direction is limited in the sliding cylinder (622) and is movably connected to the sliding cylinder (622), the other end of the sliding piece (621) in the length direction extends to the installation gap (613) and is supported by the supporting component (64) and positioned on the second boss (612), and the sliding block (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) comprises a spring, one end of which is connected to one axial end of the slideway (615), and the other end of which is connected to the slider (623).

8. A fire extinguishing device, characterized in that: The fire extinguishing device comprises an annular housing (1), a storage bottle (3), a puncturing mechanism (5) and the motion sensing mechanism according to any one of claims 1 to 7, wherein: An inner ring cavity (14) penetrating the annular shell (1) is provided at the center of the annular shell (1); an annular shell cavity (13) is formed inside the annular shell (1); the annular shell cavity (13) is used to accommodate a fire extinguishing agent; the annular shell cavity (13) is communicated with the inner ring cavity (14); at least one mounting opening (142) is provided at the lower part of the annular shell (1); the mounting opening (142) is used to mount an agent spraying assembly; the storage bottle (3), the piercing mechanism (5) and the action sensing mechanism are sequentially arranged in the inner ring cavity (14) from top to bottom; The storage bottle (3) is used to store a propellant. The outlet end of the storage bottle (3) is sealed and faces the piercing mechanism (5). The piercing mechanism (5) comprises a striker (531). The piercing end of the striker (531) faces the outlet end and can move toward the outlet end. After the sliding component of the temperature sensing trigger unit (6) is separated from the temperature sensing component, it pushes the striker (531) to move toward the outlet end and pierces the outlet end. The propellant in the storage bottle (3) is discharged from the outlet end and enters the annular shell cavity (13). The fire extinguishing agent in the annular shell cavity (13) is sprayed out through the agent spraying component under the action of pressure.

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