Throwable gas sensor

Abstract

The present invention discloses a throwable gas sensor, comprising a throwing drone and a controller, wherein the bottom of the controller is fixedly connected to a throwing device. The throwing device comprises a fixed plate and a rotating shaft rotatably connected to the fixed plate, and the fixed plate is rotatably connected to the controller via the rotating shaft, two limiting holes are provided at the bottom of the fixed plate, and electric push rods are provided inside the two limiting holes, and the bottoms of the two limiting holes are fixedly connected to a connecting mechanism; the effect of accurately detecting gas information is achieved through a buffer mechanism, when the shock absorbing mechanism lands at the moment, the buffer airbag absorbs the impact energy, and its internal movable rod moves, driving related components to pop out the parachute, avoiding covering the air inlet or sensing part of the detection mechanism, ensuring effective contact between the sensor and the external gas, thereby accurately converting the gas information into electrical signals, and realizing accurate detection after processing, providing reliable data for grasping the on-site gas conditions.

Description

Technical Field

[0001] The present invention relates to the technical field of throwable gas sensors, in particular to a throwable gas sensor. Background Art

[0002] In many complex and dangerous operational and monitoring scenarios, the need for accurate and rapid detection of gas composition and concentration in specific areas is becoming increasingly prominent. This is where throwable gas sensors emerge. Traditional gas detection methods often rely on personnel carrying equipment into the field or using fixed monitoring devices. However, in areas such as fire scenes, chemical leaks, narrow and difficult-to-access spaces (such as ventilation ducts and deep underground mine tunnels), and dangerous outdoor environments (such as swamps with toxic gas emissions), direct entry poses significant life risks, while fixed devices cannot be flexibly deployed in key locations. Furthermore, some temporary emergency monitoring scenarios, such as detecting gas indicators related to airborne pathogens in specific areas during public health emergencies and security early warning monitoring around large gathering places, require the rapid establishment of a gas monitoring network without the conditions for pre-installing large-scale fixed equipment. With their compact size, light weight, and ease of portability and delivery, throwable gas sensors can be quickly deployed to the target area using drones, robots, or manual delivery. They accurately detect multiple gases in real time and transmit data back via wireless transmission, providing indispensable technical support for timely understanding of on-site gas conditions, making scientific decisions, ensuring personnel safety, and environmental monitoring.

[0003] However, most of the existing throwable gas sensors are not equipped with a pop-up parachute mechanism. During the throwing operation, a parachute is generally used to assist in enhancing the stability and reliability of the sensor. However, when the parachute fails to pop out and moves away from the sensor, it often covers the air inlet or sensing part of the sensor, or falls near the air inlet or sensing part of the sensor, thereby blocking the effective contact between the gas and the sensor, making it impossible for the sensor to accurately capture gas information. The detection work is forced to be interrupted, which seriously reduces the detection efficiency. Moreover, this coverage situation not only causes the failure of a single detection task, but also creates a great obstacle to subsequent recycling and reuse. During recycling, extra effort is required to deal with the entanglement problem between the parachute and the sensor, and the sensor may even be damaged due to improper handling, further increasing the cost of use and waste of resources. It is far from meeting the current urgent demand for efficient, accurate and sustainable gas monitoring technology.

[0004] To this end, a throwable gas sensor is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a throwable gas sensor to solve the problem raised in the above-mentioned background technology that when the parachute fails to pop out and moves away from the sensor, it often covers the air inlet or sensing part of the sensor, which directly blocks the effective contact between the gas and the sensor, making it impossible for the sensor to accurately capture gas information, forcing the detection work to be interrupted, and seriously reducing the detection efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a throwable gas sensor, comprising a throwable drone and a controller, wherein the bottom of the controller is fixedly connected to a throwable device. The throwable device includes a fixed plate and a rotating shaft rotatably connected to the fixed plate, and the fixed plate is rotatably connected to the controller via the rotating shaft. The bottom of the fixed plate is defined by two limiting holes, each of which is provided with an electric push rod. The bottom of each limiting hole is fixedly connected to a connecting mechanism, and each limiting hole is detachably connected to a shock absorbing mechanism via the connecting mechanism.

[0007] The shock absorption mechanism includes a device housing, the top four ends of the device housing are fixedly connected to a detection mechanism for detecting gas, the four ends of the device housing are fixedly connected to a micro air pump, and the bottom of the device housing is fixedly connected to a buffer air bag for shock absorption, the interior of the device housing is opened and closed with an air channel matching the micro air pump and the buffer air bag, the interior of the device housing is also provided with a limit assembly matching the connection mechanism, and the top of the device housing is fixedly connected to the buffer mechanism;

[0008] The buffer mechanism includes an outer tube fixed to the device housing, and the internal movement of the outer tube is movably connected to a movable rod through an elastic component, and the movable rod is fixedly connected to the inside of the buffer airbag so that the movable rod moves upward when the buffer airbag contacts the ground. The interior of the outer tube is also movably connected to a limiting falcon through a limiting rod, and a support component for resetting is fixedly connected between the limiting falcon and the inner side of the outer tube, and the inner part of the outer tube is detachably connected to a limiting plate, a storage component is fixedly connected to the limiting plate, and a parachute for buffering is fixedly connected to the inside of the storage component, and the limiting plate is matched with the limiting falcon so that the parachute is ejected from the inner part of the outer tube when the movable rod moves upward.

[0009] Preferably, the four ends of the device housing are fixedly connected with exhaust ports for fine-tuning the landing position, and the exhaust ports are electrically connected to an adjustment system inside the device housing so as to adjust the landing position by changing the angle of the exhaust ports.

[0010] Preferably, a rubber pad for sealing is fixedly connected to the outer side of the exhaust port, so that when the exhaust port is closed, the gas flows to the cushioning airbag through the airway.

[0011] Preferably, the detection mechanism includes a detection shell fixed on the device housing, and a plurality of air holes are provided on the outer side of the detection shell for facilitating the entry of gas. A sensor is provided inside the detection shell, and the sensor is electrically connected to the electronic control system inside the device housing.

[0012] Preferably: the connecting mechanism includes a fixed shell, and a straight rod is movably connected to the interior of the fixed shell, a support rod for limiting is provided on the straight rod, and the support rod matches the interior of the fixed shell, and the straight rod is fixedly connected to an elastic component 2 for support near the bottom of the support rod.

[0013] Preferably, a slot matching the position-limiting assembly is provided at the bottom of the straight rod, and the position-limiting assembly includes a torsion spring insert so that the position-limiting assembly and the slot are engaged and fixed with each other.

[0014] Preferably: the fixed shell is also fixedly connected to the bottom of the device shell so that the throwing drone can throw multiple sensors at the same time, and the upper end of the straight rod is fixedly connected with a press button to make the buffer airbag expand and squeeze the straight rod to unlock the limit assembly and the slot.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention achieves the effect of accurately detecting gas information through a buffer mechanism. When the shock-absorbing mechanism lands, the buffer airbag absorbs the impact energy, and its internal movable rod moves, driving related components to eject the parachute, avoiding covering the air inlet or sensing part of the detection mechanism, ensuring effective contact between the sensor and the external gas, thereby accurately converting the gas information into an electrical signal. After processing, accurate detection is achieved, providing reliable data for understanding the gas conditions on site;

[0017] 2. The present invention achieves stable landing and fine-tuning of the position through the exhaust port and controller. During the falling process of the shock-absorbing mechanism, the micro air pump works, and the controller controls the exhaust direction and angle of the exhaust port according to a preset algorithm, fine-tuning the position of the device to maintain a stable vertical landing state and accurately land at the target position. At the same time, the rubber pad on the outside of the exhaust port ensures airtightness, ensuring that the gas flows along the preset path, ensuring the stable inflation state of the cushioning airbag, and further enhancing landing stability.

[0018] 3. The present invention achieves flexible deployment and separation of multiple sensors through a connecting mechanism. A fixed housing is connected to the bottom of the device housing. A straight rod engages the fixed housing via a support rod and is supported by an elastic component. A bottom slot engages with a limit assembly to connect the shock-absorbing mechanism and the casting device. A worker presses a button on the top of the straight rod to reconnect the multiple shock-absorbing mechanisms. When the airbag inflates, squeezing the straight rod unlocks the connection. The torsion spring of the limit assembly allows multiple device housings to be separated. By adjusting the exhaust port angle, multiple sensors can be deployed at designated locations, meeting different monitoring requirements and improving the flexibility and adaptability of sensor deployment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a disassembled diagram of the throwing device of the present invention;

[0021] Figure 3 This is a schematic diagram of the multi-stage release working state of the shock absorbing mechanism of the present invention;

[0022] Figure 4 is a three-dimensional diagram of the shock absorbing mechanism and the buffer mechanism of the present invention;

[0023] Figure 5 It is the overall position diagram of the present invention;

[0024] Figure 6 is a cross-sectional perspective view of the shock absorbing mechanism of the present invention;

[0025] Figure 7 is a cross-sectional schematic diagram of the buffer mechanism of the present invention;

[0026] Figure 8 2 is an exploded view of the connecting mechanism of the present invention.

[0027] In the picture:

[0028] 1. Throwing drone; 2. Controller;

[0029] 3. Throwing device; 31. Fixing plate; 32. Rotating shaft; 33. Limiting hole;

[0030] 4. Shock absorption mechanism; 41. Equipment housing; 42. Micro air pump; 43. Exhaust port; 44. Airway; 45. Buffer airbag; 46. Limiting assembly;

[0031] 5. Buffer mechanism; 51. Outer tube; 52. Movable rod; 53. Elastic component 1; 54. Limiting falcon; 55. Support component; 56. Limiting rod; 57. Limiting plate; 58. Storage component; 59. Parachute;

[0032] 6. Detection mechanism; 61. Detection housing; 62. Sensor;

[0033] 7. Connecting mechanism; 71. Fixed housing; 72. Straight rod; 73. Press button; 74. Support rod; 75. Elastic component 2; 76. Card slot. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] See also Figures 1 to 8 , the present invention provides a technical solution for a throwable gas sensor:

[0036] A throwable gas sensor includes a throwable drone 1 and a controller 2. The bottom of the controller 2 is fixedly connected to a throwable device 3. The throwable device 3 includes a fixed plate 31 and a rotating shaft 32 rotatably connected to the fixed plate 31. The fixed plate 31 is rotatably connected to the controller 2 via the rotating shaft 32. The bottom of the fixed plate 31 is defined with two limiting holes 33, each of which has an electric push rod disposed therein. The bottom of each limiting hole 33 is fixedly connected to a connecting mechanism 7, and each limiting hole 33 is detachably connected to a shock absorbing mechanism 4 via the connecting mechanism 7.

[0037] The shock absorption mechanism 4 includes a device housing 41. The four ends of the top of the device housing 41 are fixedly connected to a detection mechanism 6 for detecting gas. The four ends of the device housing 41 are fixedly connected to a micro air pump 42, and the bottom of the device housing 41 is fixedly connected to a cushioning air bag 45 for shock absorption. The interior of the device housing 41 is opened and closed to form an air channel 44 that matches the micro air pump 42 and the cushioning air bag 45. The interior of the device housing 41 is also provided with a limit assembly 46 that matches the connecting mechanism 7. The top of the device housing 41 is fixedly connected to the cushioning mechanism 5.

[0038] The buffer mechanism 5 includes an outer tube 51 fixed on the equipment housing 41. The internal movement of the outer tube 51 is movably connected to a movable rod 52 through an elastic component 53, and the movable rod 52 is fixedly connected to the inside of the buffer airbag 45 so that the movable rod 52 moves upward when the buffer airbag 45 contacts the ground. The interior of the outer tube 51 is also movably connected to a limiting falcon 54 through a limiting rod 56, and a support component 55 for resetting is fixedly connected between the limiting falcon 54 and the inner side of the outer tube 51, and the inner part of the outer tube 51 is detachably connected to a limiting plate 57, and a storage component 58 is fixedly connected to the limiting plate 57. A parachute 59 for buffering is fixedly connected to the storage component 58, and the limiting plate 57 is matched with the limiting falcon 54 so that the parachute 59 is ejected from the inside of the outer tube 51 when the movable rod 52 moves upward.

[0039] During operation, the throwing drone 1 carries the entire throwable gas sensor system and flies to the sky above the target area. It is stably connected to the controller 2 through the fixing plate 31 via the rotating shaft 32. The electric push rods in the two limiting holes 33 at the bottom of the fixing plate 31 are in the initial non-working state. The fixed shell 71 of the connecting mechanism 7 is firmly fixed to the bottom of the device shell 41. The straight rod 72 is supported by the elastic force of the elastic component 75 and is tightly matched with the inner wall of the fixed shell 71 through the support rod 74. It is in a stable limited state. The card slot 76 at the bottom of the straight rod 72 is precisely engaged with the limiting component 46 (torsion spring plug) inside the device shell 41 to ensure that the shock absorbing mechanism 4 is tightly connected to the throwing device 3 and will not fall off accidentally. At the same time, the detection mechanism 6 at the four ends of the top of the device shell 41 is ready, the air holes on the outside of the detection shell 61 are unobstructed, the internal sensor 62 is in standby state, and is connected with the The internal adjustment system of the device housing 41 establishes a stable telecommunications connection. The micro air pumps 42 at the four ends of the device housing 41 inflate an appropriate amount of air into the air channel 44 according to a preset program, so that the cushioning airbag 45 maintains a certain pre-inflation pressure, which can provide initial cushioning during casting without affecting the stability of the overall structure. In the cushioning mechanism 5, the movable rod 52 inside the outer tube 51 is in the lowest position under the initial elastic force of the elastic component 1 53, and is firmly connected to the inside of the cushioning airbag 45. The limit falcon 54, supported by the support component 55, is tightly pressed against the limit plate 57, ensuring that the parachute 59 in the storage component 58 is in a fully stored state and will not pop out accidentally. The rubber pad on the outside of the exhaust port 43 fits tightly, ensuring that the exhaust port 43 is in a fully closed state. The gas can only flow in the air channel 44 along the preset path, ensuring that the inflation state of the cushioning airbag 45 is stable.

[0040] When the shock absorbing mechanism 4 lands on the ground, the cushioning airbag 45 first contacts the ground. The impact force of the ground causes the cushioning airbag 45 to be rapidly compressed and deformed. The gas inside the cushioning airbag 45 is squeezed, and the pressure increases, effectively absorbing most of the impact energy and reducing the impact force on the device housing 41 and its internal components. At the same time, the movable rod 52 in the cushioning airbag 45 is subjected to the reaction force from the ground and begins to move upward. When the movable rod 52 moves upward, it compresses the elastic component 1 53, and the elastic component 1 53 stores elastic potential energy and generates an upward reaction force. The reaction force is transmitted to the limit falcon 54 through the movable rod 52, causing the limit falcon 54 to overcome the elastic force of the support assembly 55 and move outward, gradually breaking away from the contact with the limit plate 57. When the limit falcon 54 is completely free from the restriction of the limit plate 57, the parachute 59 in the storage assembly 58 quickly pops outward under the action of its own gravity and air resistance, and then the parachute 59 pops up from the inside of the outer tube 51, which can prevent the parachute 59 from covering the air inlet or sensing part of the detection mechanism 6, thereby ensuring the smooth progress of the gas detection work.

[0041] As an embodiment of the present invention, Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown, the four ends of the device housing 41 are fixedly connected with exhaust ports 43 for fine-tuning the landing position, and the exhaust ports 43 are electrically connected to the adjustment system inside the device housing 41 to adjust the landing position by changing the angle of the exhaust ports 43. A rubber pad for sealing is fixedly connected to the outer side of the exhaust port 43 so that when the exhaust port 43 is closed, the gas flows to the buffer airbag 45 through the air channel 44. The detection mechanism 6 includes a detection housing 61 fixed on the device housing 41, and a plurality of air holes are opened on the outer side of the detection housing 61 to facilitate the entry of gas. A sensor 62 is arranged inside the detection housing 61, and the sensor 62 is electrically connected to the electronic control system inside the device housing 41.

[0042] During operation, when the throwing drone 1 reaches the designated throwing point above the target area, the controller 2 receives the throwing instruction and immediately starts the electric push rod of the throwing device 3. The electric push rod quickly extends, pushing the straight rod 72 in the connecting mechanism 7 to overcome the elastic force of the elastic component 2 75 and move downward. As the straight rod 72 moves downward, the support rod 74 on the straight rod 72 gradually disengages from the limit fit with the inner wall of the fixed shell 71. At the same time, the card slot 76 at the bottom of the straight rod 72 gradually separates from the limit assembly 46 (torsion spring plug) in the device shell 41 until the connection is completely released, thereby releasing the shock absorbing mechanism 4 from the throwing device 3. 4 begins to fall freely under the action of gravity, and the parachute 59 inside the outer tube 51 pops out, while making the device always try to maintain a vertical posture when landing. During the falling process, the micro air pumps 42 at the four ends of the device housing 41 continue to work. Their working state is precisely controlled by the adjustment system inside the device housing 41 according to the preset posture adjustment algorithm. The position of the device is further fine-tuned by adjusting the direction and angle of the exhaust from the exhaust port 43. (With the help of advanced sensor technologies such as high-precision gyroscopes and inclination sensors, the device's rotation speed, tilt angle and other posture information are obtained in real time. The sensor converts this information into electrical signals. The signal is transmitted to the adjustment system through the pre-laid signal transmission line. After receiving the signal, the adjustment system starts the built-in attitude adjustment algorithm and compares and calculates the real-time attitude data with the preset ideal vertical landing attitude. If the equipment attitude deviates, the algorithm determines the thrust required to correct the deviation at the specific exhaust port based on the physical model and control strategy, and then calculates the gas flow and pressure value that the micro air pump should deliver, and generates a control instruction. The instruction is transmitted to the micro air pump through the signal line, and the drive motor is adjusted according to the instruction to control the gas to be discharged from the exhaust port. If the equipment needs to correct its attitude to the left front, the micro air pump delivers specific gas to the right exhaust port to produce a reaction. The force pushes the device to adjust. In this way, the device's posture in the air is finely adjusted in real time to ensure that it maintains a vertical descent and accurately reaches the predetermined position) so that the device can land at a more precise position and maintain a relatively stable falling state. When the position adjustment is completed, the exhaust port 43 is closed, and the gas from the micro air pump 42 is inflated into the cushioning airbag 45 through the air channel 44. During this period, the exhaust port 43 is always kept closed under the sealing effect of the rubber pad to prevent gas leakage from the exhaust port 43, ensuring that all gas flows into the cushioning airbag 45, so that the interior of the cushioning airbag 45 is filled with gas;

[0043] After landing, the detection mechanisms 6 at the four ends of the device housing 41 begin to officially work. Under the action of natural diffusion, the external gas enters the detection housing 61 through the air holes on the outside of the detection housing 61. The entering gas fully contacts the sensor 62. The sensor 62 converts information such as gas composition and concentration into electrical signals based on the physical or chemical properties of different gases. These electrical signals are transmitted to the electronic control system inside the device housing 41 through pre-laid lines. After receiving the electrical signals from the sensor 62, the electronic control system immediately starts the data processing program and performs a series of processing operations such as amplification, filtering, and analog-to-digital conversion on the signals to convert the raw signals into digital signals for analysis and transmission. Then, the electronic control system stores the processed data in the local memory according to the preset data storage format and strategy, and sends the data to a remote receiving end, such as a server in the command center or a mobile terminal of the staff, through a built-in wireless transmission module (such as Wi-Fi, Bluetooth, 4G / 5G, etc.). The remote receiving end can display and analyze the gas conditions in the target area in real time, providing accurate data support for decision-making.

[0044] As an embodiment of the present invention, Figure 2 Figure 3 、 Figure 4 、 Figure 5 and Figure 8 As shown, the connecting mechanism 7 includes a fixed shell 71, and the interior of the fixed shell 71 is movably connected to a straight rod 72, and a support rod 74 for limiting is provided on the straight rod 72, and the support rod 74 matches the interior of the fixed shell 71, and the straight rod 72 is fixedly connected to an elastic component 75 for support near the bottom of the support rod 74, and a card slot 76 matching the limit component 46 is provided at the bottom of the straight rod 72, and the limit component 46 includes a torsion spring insert so that the limit component 46 and the card slot 76 are engaged and fixed with each other, and the fixed shell 71 is also fixedly connected to the bottom of the device shell 41 so that the throwing drone 1 can throw multiple sensors 62 at the same time, and a press button 73 is fixedly connected to the upper end of the straight rod 72 to make the buffer airbag 45 expand and squeeze the straight rod 72 to unlock the limit component 46 and the card slot 76.

[0045] During operation, the staff first finds the specific position of the sensor 62 according to the position information sent by the positioning module (such as GPS module) in the device housing 41. When it is necessary to deploy multiple shock absorbing mechanisms 4 in an area, the staff manually presses the push button 73 at the upper end of the straight rod 72. After the push button 73 is pressed, the straight rod 72 is pushed downward again. During the downward movement, the card slot 76 at the bottom of the straight rod 72 engages with the limit assembly 46 (torsion spring plug) in the device housing 41, so that the shock absorbing mechanism 4 is firmly connected with the throwing device 3 again. Then, multiple shock absorbing mechanisms 4 are combined together through the connecting mechanism 7. When the buffer airbag 45 is filled, the buffer airbag 45 will squeeze the two straight rods 72 at the bottom of the device housing 41, so that the straight rod 72 moves downward, and then the straight rod 72 and the limit assembly 46 are unlocked. Under the action of the torsion spring inside the limit assembly 46, the tenon on the limit assembly 46 is disengaged from the slot 76 at the bottom of the straight rod 72, so that the multiple device housings 41 are separated, and then the angle of the exhaust port 43 is adjusted so that multiple devices can reach the specified position.

[0046] Working principle: When working, the throwing drone 1 carries the sensor system and flies over the target area. At this time, the connecting mechanism 7 ensures that the shock absorbing mechanism 4 is tightly connected to the throwing device 3, the detection mechanism 6 is on standby, the micro air pump 42 keeps the cushioning airbag 45 at the pre-inflated pressure, the parachute 59 in the cushioning mechanism 5 is stored, and the exhaust port 43 is closed. After receiving the throwing command, the controller 2 starts the electric push rod to push the straight rod 72 downward, so that the shock absorbing mechanism 4 is separated from the throwing device 3 and starts free fall. At the same time, the parachute 59 pops out and the device keeps landing vertically. The air pump 42 keeps working, and the adjustment system adjusts the exhaust direction and angle of the exhaust port 43 according to the algorithm to fine-tune the position, so that the landing of the equipment is more accurate and stable. After the position is adjusted, the exhaust port 43 is closed, and the gas is filled into the cushioning airbag 45. When landing, the cushioning airbag 45 contacts the ground and compresses and deforms to absorb the impact energy. The movable rod 52 moves upward, so that the limit falcon 54 is separated from the limit plate 57, and the parachute 59 pops out to avoid covering the air inlet or sensing part of the detection mechanism 6. Subsequently, the detection mechanism 6 works, and the outside gas enters through the air hole and contacts the sensor 62. Four detection housings 61 are provided on the device housing 41. Therefore, when it is necessary to detect multiple gases simultaneously in different scenarios, the sensor 62 inside the detection housing 61 can be replaced with a toxic and harmful gas detection sensor (for detecting carbon monoxide, hydrogen sulfide, ammonia, chlorine and nitrogen dioxide, etc.), a combustible gas detection sensor (for detecting methane, propane and hydrogen, etc.) and an environmental gas detection sensor (for detecting carbon dioxide, ozone and volatile organic compounds, etc.). Different sensors 62 are changed according to actual usage to expand the application field and use range of the device. The sensor converts gas information into an electrical signal and transmits it to the controller 2. The controller processes the signal, stores it and sends it to the remote receiving end through the wireless transmission module to realize real-time monitoring of the gas conditions in the target area. If multiple shock absorbing mechanisms 4 need to be deployed, press the push button 73 on the upper end of the straight rod 72 to reconnect the shock absorbing mechanism 4 with the throwing device 3. After the cushioning airbag 45 is full, the straight rod 72 is squeezed to unlock the straight rod 72 and the limit assembly 46. The multiple device housings 41 are separated, and then the exhaust port 43 angle is adjusted to make the device reach the specified position.

[0047] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A throwable gas sensor, comprising a throwable drone (1) and a controller (2), characterized in that: The bottom of the controller (2) is fixedly connected to a throwing device (3). The throwing device (3) comprises a fixed plate (31) and a rotating shaft (32) rotatably connected to the fixed plate (31), and the fixed plate (31) is rotatably connected to the controller (2) via the rotating shaft (32). The bottom of the fixed plate (31) is provided with two limiting holes (33), and electric push rods are provided inside the two limiting holes (33). The bottoms of the two limiting holes (33) are fixedly connected to a connecting mechanism (7), and the two limiting holes (33) are detachably connected to a shock absorbing mechanism (4) via the connecting mechanism (7). The shock absorbing mechanism (4) comprises a device housing (41), the top four ends of the device housing (41) are all fixedly connected to a detection mechanism (6) for detecting gas, the four ends of the device housing (41) are fixedly connected to a micro air pump (42), and the bottom of the device housing (41) is fixedly connected to a buffer air bag (45) for shock absorption, the interior of the device housing (41) is opened and closed with an air channel (44) matching the micro air pump (42) and the buffer air bag (45), the interior of the device housing (41) is further provided with a limit assembly (46) matching the connection mechanism (7), and the top of the device housing (41) is fixedly connected to a buffer mechanism (5); The buffer mechanism (5) includes an outer tube (51) fixed on the device housing (41), the inner movement of the outer tube (51) is movably connected to a movable rod (52) through an elastic component (53), and the movable rod (52) is fixedly connected to the inside of the buffer airbag (45), so that the movable rod (52) moves upward when the buffer airbag (45) contacts the ground, and the inner part of the outer tube (51) is also movably connected to a limit rod (54) through a limit rod (56), and the limit rod (5 4) and the inner side of the outer tube (51) are fixedly connected with a support assembly (55) for resetting, and a limit plate (57) is detachably connected inside the outer tube (51), a storage assembly (58) is fixedly connected to the limit plate (57), a parachute (59) for buffering is fixedly connected inside the storage assembly (58), and the limit plate (57) matches the limit falcon (54) so ​​that the parachute (59) is ejected from the inner side of the outer tube (51) when the movable rod (52) moves upward.

2. The throwable gas sensor according to claim 1, characterized in that: The four ends of the device housing (41) are fixedly connected with exhaust ports (43) for fine-tuning the landing position, and the exhaust ports (43) are electrically connected to the internal adjustment system of the device housing (41) so as to adjust the landing position by changing the angle of the exhaust ports (43).

3. The throwable gas sensor according to claim 2, characterized in that: A rubber pad for sealing is fixedly connected to the outer side of the exhaust port (43), so that when the exhaust port (43) is closed, gas flows to the buffer airbag (45) through the air passage (44).

4. The throwable gas sensor according to claim 1, characterized in that: The detection mechanism (6) includes a detection housing (61) fixed on the device housing (41), and a plurality of air holes are provided on the outer side of the detection housing (61) for facilitating the entry of gas. A sensor (62) is provided inside the detection housing (61), and the sensor (62) is electrically connected to an electric control system inside the device housing (41).

5. The throwable gas sensor according to claim 1, characterized in that: The connecting mechanism (7) includes a fixed shell (71), and a straight rod (72) is movably connected to the interior of the fixed shell (71), a support rod (74) for limiting is provided on the straight rod (72), and the support rod (74) matches the interior of the fixed shell (71), and a second elastic component (75) for supporting is fixedly connected to the bottom of the straight rod (72) near the support rod (74).

6. The throwable gas sensor according to claim 5, characterized in that: A slot (76) matching the position limiting assembly (46) is provided at the bottom of the straight rod (72), and the position limiting assembly (46) includes a torsion spring insert so that the position limiting assembly (46) and the slot (76) are engaged and fixed with each other.

7. The throwable gas sensor according to claim 5, characterized in that: The fixed housing (71) is also fixedly connected to the bottom of the device housing (41) so that the throwing drone (1) can throw multiple sensors simultaneously, and the upper end of the straight rod (72) is fixedly connected to a pressing button (73) so that the buffer airbag (45) expands and squeezes the straight rod (72) to unlock the limit assembly (46) and the card slot (76).

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