High-strength alarm limited space gas monitoring system

Abstract

The invention discloses a high-strength alarm limited space gas monitoring system, and relates to the technical field of gas detection equipment, and the system comprises a detection lamp which comprises a lighting module, a gas detection module, an alarm module and a plurality of function switches which are electrically connected to a controller; the front-end receiver is wirelessly connected with the controller; a light source of the lighting module faces the outer side of the shell and comprises an RGB lamp source module or a plurality of lamp source modules with different lamp colors; the controller is configured to obtain a plurality of gas concentration parameters fed back by the gas detection module; lighting and alarm logic is executed based on the trigger signal of the function switch and the gas concentration parameter; the illumination and alarm logic comprises the following steps: if the gas concentration parameter exceeds a preset harmful gas safety threshold value, controlling the illumination module to be switched to a specified lamp color, flickering at a preset frequency and controlling the alarm module to be started. The application has the effect of improving the safety and convenience when workers go to a limited space for operation.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of gas detection equipment, in particular to a high-strength alarm limited space gas monitoring system. BACKGROUND

[0002] The work such as sewage plant dredging, underground pipe network maintenance and comprehensive pipe gallery construction has a commonality: limited space operation. Because the limited space is relatively closed and the exchange with the external atmosphere is relatively small, the probability of excessive content of carbon dioxide gas and harmful gas is greatly increased, which causes that the workers have safety risks if they dare to enter.

[0003] In the prior art, the workers usually carry multiple devices such as lighting equipment and harmful gas detection equipment when going to the limited space, which not only increases the burden but also is relatively easy to be neglected due to the dispersion of the devices, and the safety hazards are not found in time, so the application provides a new technical scheme. SUMMARY

[0004] In order to improve the safety and convenience of workers going to the limited space operation, the application provides a high-strength alarm limited space gas monitoring system.

[0005] The application provides a high-strength alarm limited space gas monitoring system, which adopts the following technical scheme:

[0006] A high-strength alarm limited space gas monitoring system comprises:

[0007] A detection lamp comprises a shell, a controller mounted on the shell, and a lighting module, a gas detection module, an alarm module and a plurality of function switches electrically connected to the controller;

[0008] A front-end receiver is wirelessly connected to the detection lamp and is used to receive the working data of the controller;

[0009] The light source of the lighting module is directed to the outside of the shell and comprises an RGB light source module or a plurality of light source modules of different colors, and the controller is configured to:

[0010] Obtain a plurality of gas concentration parameters fed back by the gas detection module; wherein the gas concentration parameters at least include one or more of carbon monoxide, hydrogen sulfide, oxygen and combustible gas;

[0011] Execute lighting and alarm logic based on the trigger signal of the function switch and the gas concentration parameter;

[0012] The lighting and alarm logic at least includes: if the gas concentration parameter exceeds the preset harmful gas safety threshold, control the lighting module to switch to the specified light color, flash at the preset frequency, and control the alarm module to be turned on.

[0013] Optionally, the lamp further comprises a display installed on the shell, and the front-end receiver is configured to acquire the gas concentration parameter and perform chart visualization processing.

[0014] Optionally, the shell comprises a body shell and a movable shell detachably connected to the body shell, a shoulder strap is fixed on the body shell, the lighting module is divided into a fixed lamp group and a movable lamp group, the fixed lamp group is installed on the body shell and electrically connected to the controller, and the movable lamp group and the gas detection module are both installed on the movable shell and electrically connected to the mobile control unit, and the mobile control unit is wirelessly connected to the controller.

[0015] Optionally, the movable shell is provided with a lamp cavity extending along the central axis of the movable shell and open at both ends, the end opening of the lamp cavity is covered with a transparent lampshade, the middle part of the lamp cavity is provided with a lamp holder rotatably connected thereto, the movable lamp group is fixed to the lamp holder, the center of gravity of the lamp holder and the movable lamp group is arranged on the side facing the body shell, and the movable shell is provided with a linkage limiting mechanism for limiting rotation of the lamp holder, and a triggering part of the linkage limiting mechanism extends out of the movable shell and is used for contacting the body shell.

[0016] Optionally, the linkage limiting mechanism comprises a limiting rod, a linkage rod and a reset spring, the limiting rod is vertically slidingly connected to the movable shell and coaxial with the rotating shaft of the lamp holder, one end of the limiting rod facing the lamp holder is polygonal, and one end of the rotating shaft of the lamp holder facing the limiting rod is provided with a limiting groove;

[0017] the reset spring is sleeved on the limiting rod and fixed at one end to the movable shell and at the other end to the limiting rod, and one end of the limiting rod away from the lamp holder is formed with a guide arc surface / slope;

[0018] the linkage rod is vertically arranged in the movable shell and perpendicular to the limiting rod, one end of the linkage rod abuts against the guide arc surface / slope of the limiting rod, and the other end of the linkage rod extends out of the movable shell as the triggering part towards the body shell.

[0019] Optionally, a ring groove is arranged around the outer wall of the movable shell, a gas bag is arranged in the ring groove and protrudes out of the ring groove after being inflated, and a trigger type inflation mechanism is further arranged on the movable shell and connected to the gas bag, and the trigger type inflation mechanism is used for inflating the gas bag after the movable shell is separated from the body shell.

[0020] Optionally, a ring plate is rotatably connected to the movable shell along the central axis, and the ring plate and the movable shell surround a cavity in front of the movable shell, and a plurality of micropores are arranged on the movable shell and connected to the cavity;

[0021] the ring plate is arranged with its center of gravity close to a certain section, and one end of a gas pipeline is fixed at a position opposite to the section, and the other end of the gas pipeline is rotatably connected to the gas detection module.

[0022] Optionally, the ring plate is provided with a buoyancy sealing unit, the buoyancy sealing unit comprises a structure block, a floating ball and a buoyancy rod, the structure block is provided with an air inlet channel, one section of the air inlet channel is expanded to form a ball section, and the floating ball is arranged in the ball section; the buoyancy rod is arranged outside the structure block and extends along the length of the ring plate, and the buoyancy rod is connected with the floating ball.

[0023] Optionally, the trigger type inflation mechanism comprises:

[0024] The gas storage ring pipe is fixed to one end of the movable shell along a concentric axis and is annular;

[0025] The annular piston is arranged in the gas storage ring pipe along a concentric axis;

[0026] The transmission rod is fixed to one end of the annular piston and the other end of the transmission rod is fixed to the linkage rod after extending out of the gas storage ring pipe;

[0027] The gas storage ring pipe is open at one end away from the movable shell and is provided with an elastic sheet for sealing, and the gas storage ring pipe is connected to the air bag.

[0028] In summary, the present application has the following beneficial technical effects: the detection lamp can be conveniently carried into a closed space, on one hand, illumination is provided, and on the other hand, when harmful gas with high concentration appears, the user can be intuitively reminded because the color of the lamp for illumination is switched, and the safety is higher because the dispersion and carelessness in the prior art are eliminated;

[0029] In addition, because the front-end receiver exists, the worker can first place the detection lamp into a certain closed area, and then exits, and then remotely detects and understands the environment in the closed area through the front-end receiver, so that the safety is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a system architecture diagram of the present application;

[0031] Figure 2 is a controller control structure diagram of the present application;

[0032] Figure 3 is a longitudinal section structure diagram of the movable shell of the present application;

[0033] Figure 4 is a radial section diagram of the ring plate of the present application.

[0034] Explanation of reference numerals in the attached drawings: 1. Detection lamp; 11. Housing; 111. Portable housing; 112. Movable housing; 12. Lighting module; 121. Movable lamp assembly; 13. Gas detection module; 14. Function switch; 15. Display; 2. Front-end receiver; 3. Transparent lampshade; 4. Lamp holder; 5. Linkage limiting mechanism; 51. Limiting rod; 52. Linkage rod; 53. Return spring 1; 6. Airbag; 7. Trigger-type inflation mechanism; 71. Gas storage ring pipe; 72. Ring piston; 73. Transmission rod; 8. Ring plate; 81. Gas pipeline; 82. Buoyancy sealing unit; 821. Structural block; 822. Float; 823. Buoyancy rod. Detailed Implementation

[0035] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0036] This application discloses a high-intensity alarm confined space gas monitoring system.

[0037] Reference Figure 1 and Figure 2 The high-intensity alarm confined space gas monitoring system includes a detection lamp 1 and a front-end receiver 2. The detection lamp 1 is carried by the user by hand or around the neck, providing lighting and harmful gas detection and warning functions when working in relatively confined environments such as pipe jacking, integrated pipe corridors, box culverts, sewage treatment plant pools, and underground pipelines. The front-end receiver 2 can be a mobile phone or other separately configured handheld device, which is connected to the detection lamp 1 via wireless communication methods such as Bluetooth and radio frequency, allowing the user to remotely obtain data from the detection lamp 1, making the use of this system more flexible.

[0038] The detection lamp 1 includes a housing 11, a controller mounted on the housing 11, and a lighting module 12, a gas detection module 13, an alarm module, and multiple function switches 14 electrically connected to the controller.

[0039] The outer casing 11 consists of two sections, front and back, with the rear section being rectangular in shape. A handle is mounted on the surface, and a ring for connecting a cord is fixed thereon, allowing the user to carry the device by holding the handle and slinging the cord over their shoulder. The outer casing 11 may be made of ABS plastic material, and the cord may be made of nylon material.

[0040] The light source of the lighting module 12 faces the outside of the housing 11 and includes an RGB light source module or multiple light source modules (i.e., circuit boards) with different light colors. In this embodiment, an RGB light source module is preferred, which is connected to the controller through an LED driver controller. The alarm module in this embodiment can be a buzzer or a small speaker, which is embedded in the housing. Multiple function switches 14, such as power switches and lighting on / off / toggle switches, are electrically connected to the controller and installed on the surface of the housing 11, such as at the handle position.

[0041] The controller is configured as follows:

[0042] The gas detection module 13 receives several gas concentration parameters from the gas detection module 13. The gas concentration parameters include at least one or more of carbon monoxide, hydrogen sulfide, oxygen, and combustible gas. That is, the gas detection module 13 can be one or more of carbon monoxide, hydrogen sulfide, oxygen, and combustible gas sensors, or it can be a composite sensor that integrates multiple functions.

[0043] The lighting and alarm logic is executed based on the trigger signal of the function switch and the gas concentration parameter.

[0044] Regarding the trigger signal of the function switch, for example: the function switch is a light color switching switch. Pressing it once will output an electrical signal. After the controller receives the corresponding signal, it will switch the current light color to another preset light color.

[0045] The above lighting and alarm logic includes at least the following: if the gas concentration parameter exceeds the preset hazardous gas safety threshold, for example, if it exceeds the preset carbon monoxide concentration safety threshold, then control the lighting module 12 to switch to the specified light color (e.g., red), flash at a preset frequency, and control the alarm module to turn on.

[0046] In this embodiment, the lighting module 12 can be set to use white light when the gas concentration parameter does not exceed the preset safety threshold for harmful gases; and can be set to use yellow light in low visibility scenarios such as high fog, dust, and smoke.

[0047] It is understandable that the controller should integrate a wireless communication unit, such as a Wi-Fi unit, a Bluetooth unit, or a radio frequency unit, so that it can wirelessly connect to the front-end receiver 2.

[0048] Based on the above settings, this application can be conveniently carried into enclosed spaces, providing lighting on the one hand, and on the other hand, when there is an excessively high concentration of harmful gas, the light color switching can provide a direct and strong reminder to the user, eliminating the distraction and negligence in existing work methods, thus making it safer.

[0049] Furthermore, due to the presence of the front-end receiver 2, staff can first place the detection lamp 1 in a closed area, then leave, and then remotely detect and understand the environment of the closed area through the front-end receiver 2, thereby further improving safety.

[0050] While the above settings can alert users to excessively high concentrations of harmful gases in the environment, users cannot directly ascertain the specific situation or its development. Therefore, this application also includes the following settings:

[0051] The detection lamp 1 also includes a display 15 installed in the housing 11. The display 15 is electrically connected to the controller, that is, the user can directly read the gas concentration information in the current environment through the display 15.

[0052] Furthermore, the front-end receiver 2 is configured to acquire the gas concentration parameters and perform chart visualization processing, such as recording gas concentration changes based on a time axis, so that users can understand the development trend of gas concentration and make timely work arrangements.

[0053] In another embodiment of this application, the outer shell 11 includes a portable shell 111 and a movable shell 112 detachably connected to the portable shell 111, wherein the portable shell 111 is the aforementioned cuboid segment; an example of the detachable connection method is as follows:

[0054] One end of the body shell 111 forms a tube opening, and multiple through holes are opened on the side wall of the tube opening; one end of the movable shell 112 is inserted into the tube opening, and a telescopic block extends from the outer wall of the inserted end of the movable shell 112. The telescopic block extends from the through hole and a spring is fixed at its inner end. Thus, the two sections can be fixed by insertion, and the body shell 112 can be disassembled by pushing the telescopic block to retract it and compressing the spring.

[0055] Reference Figure 2 and Figure 3 In this embodiment, the lighting module 12 is divided into a fixed light group and a movable light group 121. The fixed light group can be a single LED with lower power and brightness, which is embedded in the side wall of the housing 111 and exposed in the corresponding hole. It is used for temporary low-brightness lighting. The fixed light group is electrically connected to the controller in the housing 111.

[0056] The active light group 121 can be an RGB light source module, which is installed in the active housing 112. The active housing 112 is equipped with a mobile control unit, such as an LED driver controller with an integrated Bluetooth module, which is electrically connected to the active light group 121 and wirelessly connected to the controller.

[0057] The gas detection module 13 is also installed inside the movable housing 112, and the movable housing 112 has multiple micropores for gas to enter and contact the gas detection module 13. The multiple micropores can be distributed around the movable housing 112, and the channels corresponding to the micropores extend into a cavity around the movable housing 112 into which the probe of the gas detection module 13 extends.

[0058] Based on the above settings, users do not even need to enter certain closed areas with unknown situations; they can simply remove the active shell 112 and put it in for testing, thus making the use of this application safer.

[0059] It is understood that in this embodiment, the portable case 111 and the movable case 112 should each have a battery module, for example:

[0060] The carrying case 111 has a large-capacity rechargeable battery module, and the movable case 112 has a smaller-capacity rechargeable battery. The circuit in the movable case 112 has two power supplies: one is the smaller-capacity rechargeable battery, which operates a switch or is automatically turned on after the movable case 112 is removed; the other is a plug, which is inserted into the corresponding socket on the carrying case 111 when the movable case 112 is installed on the carrying case 111, and the socket is connected to the larger-capacity rechargeable battery module.

[0061] In one embodiment of this application, the movable shell 112 is a multi-section tube structure with different diameters coaxially interconnected. The interior of the movable shell 112 is called the lamp cavity. The two ends of the lamp cavity are connected by threads and a transparent lamp cover 3 is installed. The two transparent lamp covers 3 are one large and one small. When the movable shell 112 is not removed, the smaller one faces the body shell 111.

[0062] A lamp holder 4 is provided inside the movable housing 112. The lamp holder 4 is rotatably connected to the movable housing 112 via a rotating shaft, and the rotating shaft is perpendicular to the central axis of the movable housing 112. The movable lamp assembly 121 is fixed to the lamp holder 4, and the lamp beads face the transparent lamp cover 3. The center of gravity of the lamp holder 4 and the movable lamp assembly 121 is set on the side facing the housing 111.

[0063] A linkage limiting mechanism 5 for limiting the rotation of the lamp holder 4 is provided inside the movable shell 112. The trigger part of the linkage limiting mechanism 5 extends out of the movable shell 112 and is used to contact the body shell 111.

[0064] According to the above settings, after the user removes the movable shell 112 and throws it out, the movable shell 112 rolls to the target area and flips over. However, no matter which end is facing up, the lamp holder 4 will adjust due to the rotation of the center of gravity, so that the movable lamp group 121 faces up, thereby emitting light to illuminate the vicinity, making it easier for the user to observe the structure of the enclosed area, and also making it easier to see more clearly when the light color changes.

[0065] Reference Figure 3 In one embodiment of this application, the linkage limiting mechanism 5 includes a limiting rod 51, a linkage rod 52, and a return spring 53.

[0066] The limiting rod 51 is vertically slidably connected to the movable shell 112, with the sliding direction being radial, and is coaxial with the rotation axis of the lamp holder 4; the end of the limiting rod 51 facing the lamp holder 4 is polygonal in appearance; a limiting groove is provided at the end of the rotation axis of the lamp holder 4 facing the limiting rod 51, that is, when the limiting rod 51 is inserted into the rotation axis, the lamp holder 4 is locked and cannot be rotated; when the limiting rod 51 is pulled out, the lamp holder 4 can rotate freely.

[0067] The limiting rod 51 has an annular protrusion formed on its outer surface. The return spring 53 is sleeved on the limiting rod 51, with one end fixed to the annular protrusion and the other end fixed to the movable shell 112. Under the action of the return spring 53, the limiting rod 51 has the ability to automatically exit the limiting groove.

[0068] The end of the limiting rod 51 away from the lamp holder 4 has a guiding arc surface / sloping surface. Taking the sloping surface as an example, the end can be wedge-shaped. The linkage rod 52 passes through the movable shell 112 and is perpendicular to the limiting rod 51. One end of the linkage rod 52 abuts against the guiding end of the limiting rod 51 with another wedge-shaped block, and the other end extends toward the body shell 111 as a trigger part.

[0069] When the movable shell 112 is installed on the portable shell 111, the trigger part of the linkage rod 52 is pressed into the movable shell 112. At this time, under the action of the guide slope / arc surface, the linkage rod 52 presses and pushes the limiting rod 51 toward the lamp holder 4. The limiting groove of the rotating shaft of the lamp holder 4 is inserted and locked, ensuring that the light direction of the detection lamp 1 is correct during daily use and does not affect daily use.

[0070] When it is necessary to explore an unknown enclosed area, the movable shell 112 is removed. At this time, the limiting rod 51 exits the limiting groove under the action of the return spring 53, and the lamp holder 4 can rotate. Thus, when the movable shell 112 is thrown out for exploration, in conjunction with the center of gravity setting on the lamp holder 4, the lamp holder 4 can keep the light always pointing upward.

[0071] The aforementioned linkage limiting mechanism 5 consists of two sets, which are symmetrically distributed on both sides of the lamp holder 4. This arrangement is intended to not only achieve the aforementioned functions but also to dampen the lamp holder 4 and reduce the likelihood of damage to the lamp beads and other structures on its upper part.

[0072] Reference Figure 3 In another embodiment of this application, the outer wall of the movable shell 112 is recessed to form an annular groove, and the annular groove is provided with an airbag 6 that protrudes from the annular groove after inflation; a trigger-type inflation mechanism 7 connected to the airbag 6 is also provided on the movable shell 112, and the trigger-type inflation mechanism 7 is used to inflate the airbag 6 after the movable shell 112 is separated from the body shell 111.

[0073] According to the above configuration, after the movable shell 112 is removed, an inflated airbag 6 will appear around it. On the one hand, it can provide some protection for the movable shell 112. On the other hand, it can increase the buoyancy of the movable shell 112 so that it can float even if it falls into water, ensuring normal use.

[0074] In another embodiment of this application, it is considered that if the movable shell 112 is placed in water, even if the above-mentioned settings enable it to float, the conventional fixed gas detection air intake method may fail due to water immersion caused by incorrect posture. Therefore, the following settings are also made:

[0075] ReferenceFigure 3 and Figure 4 Inside the movable shell 112, a ring plate 8 is rotatably connected to the central axis. The two sides of the ring plate 8 are folded and inserted into the ring structure of the inner wall of the movable shell 112. The ring plate 8 is set with its center of gravity close to a certain section, and the relative position of that section is fixed to one end of a gas pipe 81. The cavity enclosed between the ring plate 8 and the movable shell 112 serves as the communication target of the micropore. The other end of the gas pipe 81 is rotatably connected to the detection part of the gas detection module 13.

[0076] According to the above settings, when the movable shell 112 is placed in water and floats, as long as it is not vertical and sinks safely, the ring plate 8 can rotate so that the air inlet port of the gas pipe 81 is in the upper position, thus maintaining the normal gas detection function.

[0077] It is understandable that if the circuit structure in the movable housing 112 is not independently sealed, the ring plate 8 and the movable housing 112 are connected by a rotating closed structure, such as an oil seal structure.

[0078] Furthermore, a buoyancy sealing unit 82 is fixed on the ring plate 8. The buoyancy sealing unit 82 includes a structural block 821, a float 822 and a buoyancy rod 823. An air intake channel is provided on the structural block 821. One section of the air intake channel is expanded outward to form a spherical segment. The float 822 is placed in the spherical segment and has a smaller diameter.

[0079] The buoyancy rod 823 is located outside the structural block 821 and extends along the length of the ring plate 8. The buoyancy rod 823 is connected to the float 822 by a connecting rod passing through the air intake channel of the structural block 821. The end of the buoyancy rod 823 can fix another float 822. The float 822 and the buoyancy rod 823 can be made of hollow plastic or foam.

[0080] According to the above settings, when the movable shell 112 falls into the water and is completely submerged, the buoyancy bar 823 floats up and can work with the float ball 822 to automatically seal the air intake channel.

[0081] Furthermore, a desiccant-free box can be installed between the gas pipeline 81 and the gas detection module 13. The desiccant-free box can be plugged in or fixed to the movable housing 112 by bolts.

[0082] Reference Figure 3 In one embodiment of this application, the trigger-type inflation mechanism 7 includes:

[0083] The gas storage ring pipe 71 is coaxially fixed to one end of the movable shell 112 and is in the shape of a ring.

[0084] An annular piston 72 is disposed in the gas storage ring pipe 71 along the central axis;

[0085] The transmission rod 73 has one end fixed to the annular piston 72, and the other end extends out of the gas storage ring pipe 71 and is fixed to the linkage rod 52.

[0086] The gas storage ring tube 71 has an opening at one end away from the movable shell 112, and the opening is fixed with an elastic sheet, such as rubber, for sealing; the gas storage ring tube 71 is connected to the airbag 6 through a pipe.

[0087] When the movable shell 112 is installed on the body shell 111, the annular piston 72 is far away from the elastic plate, and a large amount of gas is stored in the gas storage ring tube 71.

[0088] When the movable shell 112 is removed, the linkage rod 52 is pushed outward by the limiting rod 51 pushed by the reset spring 53. The outward movement of the linkage rod 52 drives the annular piston 72 to move toward the elastic plate. On the one hand, it squeezes gas into the airbag 6 to make it inflate, and on the other hand, it makes the elastic plate inflate. Thus, it can not only automatically inflate the airbag 6, but also use the inflated elastic plate to provide some protection for the end of the movable shell 112 facing the body shell 111.

[0089] Understandably, if the elastic potential energy of the first reset spring 53 is insufficient, a second reset spring can be installed on the linkage rod 52 to ensure that the end of the linkage rod 52 can be smoothly ejected outwards when it is not blocked by the body shell 111.

[0090] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high strength alarm confined space gas monitoring system, characterized by, The utility model relates to a detection lamp (1) comprising a shell (11), a controller mounted on the shell (11), a lighting module (12) electrically connected to the controller, a gas detection module (13), an alarm module and a plurality of function switches (14); a front-end receiver (2) wirelessly connected to the detection lamp (1) and used for receiving working data of the controller; wherein the light source of the lighting module (12) faces the outside of the shell (11) and comprises an RGB light source module or a plurality of light source modules of different colors, and the controller is configured to: obtain a plurality of gas concentration parameters fed back by the gas detection module (13); wherein the gas concentration parameters at least include one or more of carbon monoxide, hydrogen sulfide, oxygen and combustible gas; execute lighting and alarm logic based on a trigger signal of the function switch (14) and the gas concentration parameters; wherein the lighting and alarm logic at least includes: if the gas concentration parameters exceed a preset harmful gas safety threshold, control the lighting module (12) to switch to a specified light color, flash at a preset frequency and control the alarm module to turn on. The detection lamp (1) further comprises a display (15) mounted on the shell (11), and the front-end receiver (2) is configured to: obtain the detection gas concentration parameters and perform chart visualization processing.

2. The high strength alarm confined space gas monitoring system of claim 1, wherein: The shell (11) comprises a body shell (111) and a movable shell (112) detachably connected to the body shell (111), a shoulder strap is fixed on the body shell (111), the lighting module (12) is divided into a fixed light group and a movable light group (121), the fixed light group is mounted on the body shell (111) and electrically connected to the controller, and the movable light group (121) and the gas detection module (13) are both mounted on the movable shell (112) and electrically connected to a mobile control unit, and the mobile control unit is wirelessly connected to the controller.

3. The high strength alarm confined space gas monitoring system of claim 1, wherein: The movable shell (112) is provided with a lamp cavity extending along the central axis of the movable shell (112) and having two open ends, the end opening of the lamp cavity is covered with a transparent lampshade (3), the middle part of the lamp cavity is provided with a lamp holder (4) rotatably connected thereto, the movable light group (121) is fixed to the lamp holder (4), the gravity centers of the lamp holder (4) and the movable light group (121) are arranged on the side facing the body shell (111), and the movable shell (112) is provided with a linkage limiting mechanism (5) for limiting the rotation of the lamp holder (4), and a trigger part of the linkage limiting mechanism (5) extends out of the movable shell (112) and is used for contacting the body shell (111).

4. The high strength alarm confined space gas monitoring system of claim 3, wherein: The linkage limiting mechanism (5) comprises a limiting rod (51), a linkage rod (52) and a reset spring (53), the limiting rod (51) is vertically slidingly connected to the movable shell (112) and has the same central axis as the rotating shaft of the lamp holder (4), one end of the limiting rod (51) facing the lamp holder (4) is polygonal, and one end of the rotating shaft of the lamp holder (4) facing the limiting rod (51) is provided with a limiting groove; 5. The high strength alarm confined space gas monitoring system of claim 4, wherein: ​ The reset spring (53) is sleeved on the limiting rod (51) and fixed at one end of the movable shell (112) and at the other end of the limiting rod (51), and a guide arc / slope is formed at one end of the limiting rod (51) away from the lamp holder (4); The linkage rod (52) is vertically arranged in the movable shell (112) and abuts against the guide arc / slope of the limiting rod (51) at one end and extends towards the portable shell (111) as a trigger part at the other end.

6. The high strength alarm confined space gas monitoring system of claim 5, wherein: A ring groove is arranged on the outer wall of the movable shell (112), and an air bag (6) is arranged in the ring groove and protrudes from the ring groove after being inflated, and a trigger type inflation mechanism (7) is further arranged on the movable shell (112) and connected to the air bag (6), and the trigger type inflation mechanism (7) is used to inflate the air bag (6) after the movable shell (112) is separated from the portable shell (111).

7. The high strength alarm confined space gas monitoring system of claim 6, wherein: A ring plate (8) is rotationally connected to the movable shell (112) along the concentric axis, the ring plate (8) and the movable shell (112) surround a cavity in front of the movable shell (112), and a plurality of micro-holes are arranged on the movable shell (112) and connected to the cavity, the ring plate (8) is arranged with its gravity center close to a section and one end of a gas pipeline (81) is fixed at a position opposite to the section, and the other end of the gas pipeline (81) is rotationally connected to a gas detection module (13).

8. The high strength alarm confined space gas monitoring system of claim 7, wherein: A buoyancy sealing unit (82) is arranged on the ring plate (8), the buoyancy sealing unit (82) includes a structure block (821), a floating ball (822) and a buoyancy rod (823), an air inlet channel is arranged on the structure block (821), one section of the air inlet channel is expanded to form a ball section, and the floating ball (822) is arranged in the ball section, and the buoyancy rod (823) is arranged outside the structure block (821) and extends along the length of the ring plate (8), and the buoyancy rod (823) is connected to the floating ball (822).

9. The high strength alarm confined space gas monitoring system of claim 6, wherein, The trigger type inflation mechanism (7) includes: A gas storage ring pipe (71) is fixed at one end of the movable shell (112) along the concentric axis and has a ring shape; A ring-shaped piston (72) is arranged in the gas storage ring pipe (71) along the concentric axis; A transmission rod (73) is fixed at one end of the ring-shaped piston (72) and at the other end of the linkage rod (52) outside the gas storage ring pipe (71); The other end of the gas storage ring pipe (71) away from the movable shell (112) is open and fixed with an elastic sheet for sealing, and the gas storage ring pipe (71) is connected to the air bag (6).

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