Quick release type natural gas detection early warning device with protection structure

Abstract

The invention discloses a quick release type natural gas detection early warning device with a protection structure, which comprises a mounting seat and a fixed seat, the top end of the mounting seat is connected with the fixed seat, the two sides of the fixed seat are respectively connected with a right fixed arm and a left fixed arm which are used for clamping a natural gas pipe, and the top end of the mounting seat is movably connected with a protection shell. According to the quick release type natural gas detection early warning device with the protection structure, a driving motor is used for driving a power shaft to rotate, a power transmission assembly is matched to enable a power gear and a rotating shaft to synchronously rotate, then the rotating shaft is turned over towards the inner side, and in the process, the rotating shaft drives the power gear to rotate; and under the mutual meshing action of a power gear, a power transmission gear, an auxiliary gear and a subordinate gear, the overturning shaft can synchronously rotate, and then the overturning shaft is overturned towards the inner side till the two sets of fixing clamping blocks surround the natural gas pipeline.

Description

Technical Field

[0001] The invention relates to the technical field of natural gas detection, and in particular to a quick-detachable natural gas detection early warning device with a protective structure. Background Art

[0002] With the popularization of natural gas use, its safety issues have received increasing attention from all walks of life. Leakage of natural gas pipelines and facilities may not only cause serious accidents such as fires and explosions, but may also have long-term impacts on the environment and public health. Therefore, the development of efficient and reliable natural gas survey and early warning devices has become the key to ensuring the safe use of natural gas. Although traditional natural gas survey and early warning devices can detect and warn of natural gas leaks to a certain extent, they often have problems such as complex installation, difficult maintenance, and insufficient protection performance. In response to the above problems, we have developed a quick-detachable natural gas detection and early warning device with a protective structure; In a leakage prevention warning device for filling a liquefied natural gas ship with the announcement number CN118031092A; it includes a casing, a connecting hose and a pipe clamp, and a leakage warning mechanism is arranged on the top of the casing, which includes an air intake channel, a gas storage tank is arranged on the top of the air intake channel, a groove is opened at the inner bottom of the gas storage tank, an exhaust pipe is arranged at the bottom of the gas storage tank, and a first movable plate is slidably connected in the gas storage tank, and the first movable plate is arranged on the trigger switch. In the present invention, when a valve leak occurs during liquefied natural gas filling, the natural gas diffuses into the connecting hose, and more natural gas enters the gas storage tank, the trigger switch automatically pops up, and the warning light comes on, thereby prompting the leakage; in addition, when the leaked natural gas enters the gas storage tank, the first movable plate moves upward, driving the fan to rotate, and the wind blows upward in the guide channel to guide the second movable plate to move upward, thereby understanding the rotation speed of the fan and the degree of natural gas leakage; When the above-mentioned prior art is used, the detection casing is mainly fixed on the pipeline with a pipe clamp to detect natural gas leakage. However, the method of directly docking and installing the above-mentioned pipe clamp with the natural gas pipeline requires manual tightening with the help of external tools, which is cumbersome to operate and inconvenient to disassemble later, resulting in that the later disassembly and maintenance cannot be carried out efficiently. On the other hand, when the pipe clamp is fixedly installed, the firmness and sealing of the installation cannot be effectively guaranteed, which may lead to natural gas leakage at the installation connection of the pipe clamp, thereby affecting the use of the natural gas pipeline itself and the accuracy of natural gas leakage detection. In addition, the gas storage tank used for detection in the above-mentioned prior art is directly exposed for use, lacks protection, and has poor dustproof effect, which affects subsequent use. Therefore, corresponding improvements are needed. Summary of the invention

[0003] The purpose of the present invention is to provide a quick-detachable natural gas detection and early warning device with a protective structure to solve the problem that the natural gas detection and early warning devices currently on the market are inconvenient to disassemble and assemble during use and lack protection, which affects the natural gas detection and early warning.

[0004] To achieve the above object, the present invention provides the following technical solutions: a quick-detachable natural gas detection and early warning device with a protective structure, comprising a mounting seat and a fixing seat, the top of the mounting seat is connected to the fixing seat, and the two sides of the fixing seat are respectively connected to a right fixing arm and a left fixing arm for clamping a natural gas pipe, and the top of the mounting seat is movably connected to a protective shell; Also includes: An actuator is arranged on the back of the mounting seat and the fixing seat, and the actuator includes a driving motor, and the driving motor is arranged on one side of the mounting seat through a supporting seat, one end of the driving motor is connected to a power shaft, the outer side of the power shaft is sleeved with a power transmission component, and a rotating shaft is penetrated at one end inside the power transmission component, a power gear is sleeved on the outer side of the rotating shaft, and a power transmission gear is meshed on one side of the power gear, an auxiliary gear is meshed on one side of the power transmission gear, and a subordinate gear is meshed on one side of the auxiliary gear, a flip shaft is penetrated inside the subordinate gear, and both the flip shaft and the rotating shaft penetrate from the inside of the fixing seat; The right fixed arm and the left fixed arm are respectively sleeved on the outside of the flip shaft and the rotating shaft, a flip assembly is arranged at one end of the rotating shaft, and air flow stirring mechanisms are arranged on both sides of the mounting seat.

[0005] Furthermore, the power transmission gear and the auxiliary gear have the same diameter, the power gear, the power transmission gear, the auxiliary gear and the subordinate gear are all meshed and connected, and the power gear and the subordinate gear rotate in opposite directions.

[0006] Furthermore, the flip assembly includes a driving gear arranged on the outside of the mounting seat, and a pulley assembly is connected between the driving gear and the rotating shaft, a passive gear is meshed on one side of the driving gear, and a driven shaft passes through the inside of the passive gear, a rectangular sleeve block is sleeved on the outside of the driven shaft, and the rectangular sleeve block is connected to the bottom end of the protective shell, and a breathable filter is evenly arranged on the outside of the protective shell.

[0007] Furthermore, the pulley assembly includes two groups of pulleys and a linkage belt. The two groups of pulleys are respectively sleeved on the outside of the rotating shaft and the transmission shaft, and a linkage belt is connected between the pulleys.

[0008] Furthermore, a PLC sensor is connected to the outside of the mounting base, a natural gas early warning detector is connected to the top of the mounting base, and an audible and visual alarm is connected to the top of the mounting base. The output end of the natural gas early warning detector is electrically connected to the input end of the PLC sensor through a wire, and the output end of the PLC sensor is electrically connected to the input end of the audible and visual alarm through a wire.

[0009] Furthermore, the airflow stirring mechanism includes a driving motor, and the driving motor is arranged at the bottom end of the mounting seat, one end of the driving motor is connected to a protective shell, and one side of the mounting seat above the horizontal axis is connected to a stirring shaft, a transmission belt is connected between the horizontal axis and the stirring shaft, one end of the stirring shaft is connected to a breaking up disk, and one side of the breaking up disk is evenly connected to an airflow breaking up rod.

[0010] Furthermore, the cross-section of the scattering disk is circular, and four airflow scattering rods are arranged on one side of the scattering disk, and the airflow scattering rods are distributed in a cross shape on the scattering disk.

[0011] Furthermore, adsorption blocks are connected to both sides of the bottom end of the protective shell. After the adsorption block is flipped, a snap-fit ​​groove with a rectangular cross-section is provided on the mounting seat at the corresponding position, and magnetic blocks are connected to both sides of the snap-fit ​​groove. The adsorption block and the magnetic block are adsorbed to each other.

[0012] Furthermore, one side of the right fixed arm and the left fixed arm are both connected to a fixed clamping block, and both ends of one side of the fixed clamping block are connected to an anti-slip pad.

[0013] Compared with the prior art, the invention has the following beneficial effects: the quick-detachable natural gas detection and early warning device with a protective structure is not only easy to disassemble and assemble when in use, but can also simultaneously realize the synchronous protection of the early warning device, and has an air flow stirring effect during the natural gas detection and early warning process, promoting gas dispersion, so that natural gas leakage can be quickly detected; When it is necessary to detect natural gas leakage on the natural gas pipeline, the driving motor is used to drive the power shaft to rotate, and the power transmission component is used to make the power gear and the rotating shaft rotate synchronously, and then the rotating shaft is turned inward. In this process, the rotating shaft drives the power gear to rotate, and under the mutual meshing action of the power gear, the power transmission gear, the auxiliary gear and the subordinate gear, the turning shaft can be rotated synchronously, and then the turning shaft is also turned inward, until the two sets of fixed clamps are embraced on the natural gas pipeline, and cooperate with the anti-slip pad to achieve close protection, further enhancing the clamping effect of the fixed clamps on the natural gas pipeline, so that the natural gas early warning detector can be installed on the natural gas pipeline when in use, and the natural gas early warning detector can be used to detect the leaked natural gas, and the detection signal can be transmitted to the PLC sensor, and the PLC sensor can be used to drive the sound and light alarm to send out the sound and light alarm, which has a better early warning effect, and the above reverse operation can be performed to realize the convenient disassembly of the mounting seat and the fixing seat, and the quick disassembly effect is achieved, and the later inspection and maintenance are more convenient; During the rotation of the rotating shaft, the pulley assembly is cooperated to make the transmission shaft rotate synchronously, and then the driving gear is rotated. The mutual meshing action of the driving gear and the passive gear is utilized, and then the passive gear and the driven shaft are rotated synchronously, so that the protective shell can be turned over, and the adsorption block is inserted into the buckling groove and adsorbed with the buckling groove, so that the turning of the protective shell can be limited to a certain extent, and the protective shell can be used to protect the natural gas early warning detector and the sound and light alarm during the natural gas leakage detection process. On the one hand, it can play a dustproof effect, and on the other hand, it can prevent the natural gas early warning detector and the sound and light alarm from being damaged by external impact, which helps to extend the service life of the natural gas early warning detector and the sound and light alarm; During the natural gas detection process, a driving motor is used to drive the horizontal axis to rotate, and a transmission belt is used to make the stirring shaft and the breaking disk rotate synchronously, thereby rotating multiple sets of breaking disks to stir the detected gas, promote the diffusion of the gas, and make the natural gas diffuse in the detection space, so that the gas can be distributed to the detection area faster, so that the natural gas early warning detector can capture the leakage signal faster and improve the detection sensitivity. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a rear view structural schematic diagram of the present invention; Figure 3 It is a side view structural schematic diagram of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the protective shell of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the fixing seat and the right fixing arm and the left fixing arm of the present invention; Figure 6It is a schematic diagram of the structure of the airflow stirring mechanism of the present invention; Figure 7 It is a three-dimensional structural schematic diagram of the distribution state of the snap-fit ​​grooves on the mounting seat of the present invention.

[0015] In the figure: 1, mounting base; 101, snap-fitting groove; 102, magnetic block; 2, protective shell; 201, air permeable filter; 202, adsorption block; 3, natural gas early warning detector; 4, sound and light alarm; 5, air flow stirring mechanism; 501, driving motor; 502, horizontal axis; 503, stirring axis; 504, transmission belt; 505, breaking plate; 506, air flow breaking rod; 6, fixed base; 7, turning axis; 8, rotating axis; 9, right fixed arm; 10 , left fixed arm; 1001, fixed clamp; 1002, anti-slip pad; 11, pulley assembly; 12, transmission shaft; 13, driving gear; 14, passive gear; 15, driven shaft; 16, actuator; 1601, drive motor; 1602, power transmission assembly; 1603, power gear; 1604, power transmission gear; 1605, auxiliary gear; 1606, slave gear; 1607, power shaft; 17, PLC sensor. DETAILED DESCRIPTION

[0016] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0017] See also Figure 1-Figure 7 , the present invention provides the following technical solutions: Embodiment 1

[0018] In order to solve the problem that the existing natural gas detection and early warning device is cumbersome to disassemble and assemble during use, and does not have the problem of later maintenance, the following technical solution is announced. For details, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5, including a mounting base 1 and a fixing base 6, the top of the mounting base 1 is connected to the fixing base 6, and the two sides of the fixing base 6 are respectively connected to a right fixing arm 9 and a left fixing arm 10 for clamping the natural gas pipe, the top of the mounting base 1 is movably connected to a protective shell 2, and also includes: an actuator 16 is arranged on the back of the mounting base 1 and the fixing base 6, and the actuator 16 includes a driving motor 1601, and the driving motor 1601 is arranged on one side of the mounting base 1 through a supporting base, one end of the driving motor 1601 is connected to a power shaft 1607, the outer side of the power shaft 1607 is sleeved with a power transmission component 1602, and one end of the power transmission component 1602 is penetrated by a rotating shaft 8, the outer side of the rotating shaft 8 is sleeved with a power gear 1603, and one side of the power gear 1603 is meshed with a power transmission gear 1604, and one side of the power transmission gear 1604 is meshed with an auxiliary gear Wheel 1605, and one side of the auxiliary gear 1605 is meshed with a subordinate gear 1606, the interior of the subordinate gear 1606 is penetrated by a flip shaft 7, the flip shaft 7 and the rotating shaft 8 are penetrated from the interior of the fixed seat 6, the power transmission gear 1604 and the auxiliary gear 1605 have the same diameter, the power gear 1603, the power transmission gear 1604, the auxiliary gear 1605, and the subordinate gear 1606 are all meshed and connected, the power gear 1603 and the subordinate gear 1606 turn in opposite directions, the outer side of the mounting seat 1 is connected with a PLC sensor 17, the top of the mounting seat 1 is connected with a natural gas early warning detector 3, the top of the mounting seat 1 is connected with an audible and visual alarm 4, the output end of the natural gas early warning detector 3 is electrically connected to the input end of the PLC sensor 17 through a wire, and the output end of the PLC sensor 17 is electrically connected to the input end of the audible and visual alarm 4 through a wire; When the present embodiment is in use, the natural gas early warning detector 3 is mainly used for air detection. When a natural gas leak is detected, the detection signal is transmitted to the PLC sensor 17, and the detection signal is transmitted to the sound and light alarm 4 through the PLC sensor 17, and then the sound and light alarm 4 emits a sound and light alarm, so that the staff can quickly find the natural gas leak and make timely repairs. During the natural gas detection process, the driving motor 1601 is used to drive the power shaft 1607 to rotate, and the power transmission component 1602 is used to make the power gear 1603 and the rotating shaft 8 rotate synchronously, and then the rotating shaft 8 is turned inward. In this process, the rotating shaft 8 drives the power gear 1603 to rotate. Under the mutual meshing action of the wheel 1603, the power transmission gear 1604, the auxiliary gear 1605 and the slave gear 1606, the flip shaft 7 can rotate synchronously, and then the flip shaft 7 can also flip inward until the two sets of fixed clamps 1001 are surrounded by the natural gas pipeline, and cooperate with the anti-slip pad 1002 to achieve close protection, further enhancing the clamping effect of the fixed clamp 1001 on the natural gas pipeline, so that the natural gas early warning detector 3 can be installed on the natural gas pipeline when in use, and the natural gas early warning detector 3 can be conveniently installed. The natural gas early warning detector 3 can be conveniently disassembled by performing the reverse operation at a later time, achieving the effect of quick disassembly and assembly, making the later inspection and maintenance easier. Embodiment 2

[0019] The present embodiment is different from the first embodiment in that the protection shell 2 can be conveniently flipped by using the setting of the flip assembly, so as to effectively protect the natural gas early warning detector 3. Therefore, the following technical solution is published. For details, please refer to Figure 1 , Figure 2 , Figure 3 , body 4, Figure 7The right fixed arm 9 and the left fixed arm 10 are respectively sleeved on the outside of the flip shaft 7 and the rotating shaft 8, and one side of the right fixed arm 9 and the left fixed arm 10 are connected to a fixed clamping block 1001, and both ends of one side of the fixed clamping block 1001 are connected to an anti-slip pad 1002. A flip assembly is provided at one end of the rotating shaft 8, and the flip assembly includes a driving gear 13 arranged on the outside of the mounting seat 1, and a pulley assembly 11 is connected between the driving gear 13 and the rotating shaft 8. The pulley assembly 11 includes two sets of pulleys and a linkage belt. The two sets of pulleys are respectively sleeved on the outside of the rotating shaft 8 and the transmission shaft 12, and the pulleys are connected to the outside of the rotating shaft 8 and the transmission shaft 12. A linkage belt is connected, a driven gear 14 is meshed on one side of the driving gear 13, and a driven shaft 15 is penetrated inside the driven gear 14, a rectangular sleeve block is sleeved on the outside of the driven shaft 15, and the rectangular sleeve block is connected to the bottom end of the protective shell 2, and a breathable filter screen 201 is evenly arranged on the outside of the protective shell 2, and adsorption blocks 202 are connected to both sides of the bottom end of the protective shell 2. After the adsorption block 202 is turned over, a buckling groove 101 with a rectangular cross-section is arranged on the mounting seat 1 at the corresponding position, and magnetic blocks 102 are connected to both sides of the buckling groove 101, and the adsorption block 202 and the magnetic block 102 are adsorbed to each other; When the present embodiment is in use, the right fixed arm 9 and the left fixed arm 10 are used to clamp the natural gas pipeline. The cooperation of the fixed clamp block 1001 and the anti-skid pad 1002 can achieve the stability of the clamping. During the flipping of the rotating shaft 8, the pulley assembly 11 can be used to make the transmission shaft 12 rotate synchronously, and then the driving gear 13 rotates. The driving gear 13 and the driven gear 14 are meshed with each other, so that the driven gear 14 rotates synchronously, and then the driven shaft 15 rotates, and the protective shell 2 is flipped, so that the protective shell 2 is flipped to cover the natural gas early warning detector 3 and the sound and light alarm 4, so as to achieve the shielding and maintenance of the natural gas early warning detector 3 and the sound and light alarm 4. In addition, during the rotation of the protective shell 2, the adsorption block 202 is inserted into the buckle groove 101, and the mutual adsorption of the adsorption block 202 and the magnetic block 102 can be used to enhance the firmness of the protection of the protective shell 2, and achieve better dustproof and external protection effects. Embodiment 3

[0020] This embodiment is different from the first and second embodiments. By using the air flow stirring mechanism 5, the air flow can be dispersed and the diffusion of the air flow can be accelerated during the natural gas leakage detection, so the detection efficiency can be improved accordingly. Therefore, the following technical solutions are published. For details, please refer to Figure 1 , Figure 2 , Figure 6, air flow stirring mechanisms 5 are arranged on both sides of the mounting seat 1, and the air flow stirring mechanisms 5 include a driving motor 501, and the driving motor 501 is arranged at the bottom end of the mounting seat 1, one end of the driving motor 501 is connected to the protective shell 2, and one side of the mounting seat 1 above the horizontal axis 502 is connected to the stirring shaft 503, and a transmission belt 504 is connected between the horizontal axis 502 and the stirring shaft 503, one end of the stirring shaft 503 is connected to a scattering disk 505, and one side of the scattering disk 505 is evenly connected with air flow scattering rods 506, the cross-section of the scattering disk 505 is circular, and four air flow scattering rods 506 are arranged on one side of the scattering disk 505, and the air flow scattering rods 506 are distributed in a cross shape on the scattering disk 505; When this embodiment is in use, during the natural gas detection process, the driving motor 501 is used to drive the horizontal axis 502 to rotate, and the transmission belt 504 is used to make the stirring shaft 503 and the breaking disk 505 rotate synchronously, and then the multiple groups of breaking disks 505 are rotated, so that the detected gas can be stirred, and the diffusion of the gas is promoted, so that the natural gas can be diffused in the detection space, and the gas can be distributed to the detection area more quickly, so that the natural gas early warning detector 3 can capture the leakage signal more quickly, thereby improving the detection sensitivity.

[0021] It should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the devices or components referred to must have specific directions, be constructed and operated in specific directions, and therefore cannot be understood as limitations on the protection content of the present invention. The standard parts used in the present invention can all be purchased on the market, and special-shaped parts can all be customized according to the instructions and the drawings. The specific connection methods of each part all adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0022] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A quick-detachable natural gas detection and early warning device with a protective structure, comprising a mounting seat (1) and a fixing seat (6), wherein the top of the mounting seat (1) is connected to the fixing seat (6), and the two sides of the fixing seat (6) are respectively connected to a right fixing arm (9) and a left fixing arm (10) for clamping a natural gas pipe, and the top of the mounting seat (1) is movably connected to a protective shell (2); It is characterized in that Also includes: An actuator (16) is arranged on the back of the mounting seat (1) and the fixing seat (6), and the actuator (16) comprises a drive motor (1601), and the drive motor (1601) is arranged on one side of the mounting seat (1) through a support seat, one end of the drive motor (1601) is connected to a power shaft (1607), the outer side of the power shaft (1607) is sleeved with a power transmission component (1602), and one end of the power transmission component (1602) penetrates a rotating shaft (8), The outer side of the rotating shaft (8) is sleeved with a power gear (1603), and one side of the power gear (1603) is meshed with a power transmission gear (1604), one side of the power transmission gear (1604) is meshed with an auxiliary gear (1605), and one side of the auxiliary gear (1605) is meshed with a subordinate gear (1606), and the interior of the subordinate gear (1606) is penetrated by a flip shaft (7), and the flip shaft (7) and the rotating shaft (8) are both penetrated from the interior of the fixed seat (6); The right fixed arm (9) and the left fixed arm (10) are respectively sleeved on the outside of the flip shaft (7) and the rotating shaft (8); a flip assembly is provided at one end of the rotating shaft (8); and air flow stirring mechanisms (5) are provided on both sides of the mounting seat (1).

2. The quick-detachable natural gas detection and early warning device with a protective structure according to claim 1 is characterized in that: The power transmission gear (1604) and the auxiliary gear (1605) have the same diameter, the power gear (1603), the power transmission gear (1604), the auxiliary gear (1605), and the subordinate gear (1606) are all meshingly connected, and the power gear (1603) and the subordinate gear (1606) rotate in opposite directions.

3. The quick-detachable natural gas detection and early warning device with a protective structure according to claim 1 is characterized in that: The flip assembly comprises a driving gear (13) arranged on the outside of 1, and a pulley assembly (11) is connected between the driving gear (13) and the rotating shaft (8), a driven gear (14) is meshed on one side of the driving gear (13), and a driven shaft (15) penetrates the interior of the driven gear (14), a rectangular sleeve block is sleeved on the outside of the driven shaft (15), and the rectangular sleeve block is connected to the bottom end of the protective shell (2), and a breathable filter screen (201) is evenly arranged on the outside of the protective shell (2).

4. The quick-detachable natural gas detection and early warning device with a protective structure according to claim 3 is characterized in that: The pulley assembly (11) comprises two groups of pulleys and a linkage belt, the two groups of pulleys are respectively sleeved on the outside of the rotating shaft (8) and the transmission shaft (12), and a linkage belt is connected between the pulleys.

5. The quick-detachable natural gas detection and early warning device with a protective structure according to claim 1 is characterized in that: The outer side of the mounting seat (1) is connected to a PLC sensor (17), the top of the mounting seat (1) is connected to a natural gas early warning detector (3), the top of the mounting seat (1) is connected to an audible and visual alarm (4), the output end of the natural gas early warning detector (3) is electrically connected to the input end of the PLC sensor (17) via a wire, and the output end of the PLC sensor (17) is electrically connected to the input end of the audible and visual alarm (4) via a wire.

6. The quick-detachable natural gas detection and early warning device with a protective structure according to claim 1 is characterized in that: The airflow stirring mechanism (5) comprises a driving motor (501), and the driving motor (501) is arranged at the bottom end of the mounting seat (1), one end of the driving motor (501) is connected to a protective shell (2), and one side of the mounting seat (1) above the transverse axis (502) is connected to a stirring shaft (503), a transmission belt (504) is connected between the transverse axis (502) and the stirring shaft (503), one end of the stirring shaft (503) is connected to a scattering disk (505), and one side of the scattering disk (505) is evenly connected to an airflow scattering rod (506).

7. The quick-detachable natural gas detection and early warning device with a protective structure according to claim 6 is characterized in that: The scattering disc (505) has a circular cross-section, and four airflow scattering rods (506) are arranged on one side of the scattering disc (505). The airflow scattering rods (506) are distributed in a cross shape on the scattering disc (505).

8. The quick-detachable natural gas detection and early warning device with a protective structure according to claim 1 is characterized in that: Both sides of the bottom end of the protective shell (2) are connected to adsorption blocks (202); after the adsorption block (202) is turned over, a buckling groove (101) with a rectangular cross-section is provided on the mounting seat (1) at the corresponding position, and both sides of the buckling groove (101) are connected to magnetic blocks (102); the adsorption block (202) and the magnetic block (102) are mutually adsorbed.

9. The quick-detachable natural gas detection and early warning device with a protective structure according to claim 1 is characterized in that: One side of the right fixed arm (9) and the left fixed arm (10) are both connected to a fixed clamping block (1001), and both ends of one side of the fixed clamping block (1001) are connected to an anti-slip pad (1002).

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