Liftable gas alarm system

Abstract

The present invention discloses a liftable gas alarm system, which belongs to the technical field of gas alarms. The liftable gas alarm system comprises a base, the base is provided with a connecting mechanism for connecting to a wall, the base is rotatably connected with a first rotating shaft and a second rotating shaft, the first rotating shaft is provided with a first gear, the second rotating shaft is provided with a second gear, a gap is left between the first gear and the second gear, a double-sided rack is provided in the gap, the two sides of the double-sided rack are respectively meshed with the first gear and the second gear, a gas alarm is fixedly connected to the double-sided rack; the base is fixedly connected with a frame, the frame is fixedly connected with a motor, and the output end of the motor is fixedly connected to the second gear. The invention has the advantages of meeting the flexibility of height adjustment, installation adaptability and maintenance convenience at the same time.

Description

Technical Field

[0001] The invention belongs to the technical field of gas alarms, and in particular relates to a liftable gas alarm system. Background Art

[0002] Gas is a widely used energy source and is used in many places such as homes and industries. However, gas leaks may cause serious safety accidents such as explosions and fires, causing huge losses to people's lives and property. As a key device for detecting gas leaks, the effective operation of gas alarms is crucial to ensuring safety.

[0003] Traditional gas alarms are usually installed in a fixed manner, and the installation location is determined when the equipment is installed. This fixed installation method has many limitations. First, in different usage environments, such as the uneven heights of various gas equipment in the kitchen, it is difficult for fixed gas alarms to accurately and effectively detect all areas where leakage may occur. For example, for a gas water heater installed at a higher position and a gas stove installed at a lower position, an alarm at a single height cannot simultaneously take into account the gas concentration monitoring near both, which easily forms a detection blind spot and reduces the effectiveness and reliability of the detection.

[0004] Secondly, in terms of installation adaptability, due to the different building structures and spatial layouts in different places, fixed gas alarms are limited by the initial installation position. If the installation position is too high, leaks may not be detected in a timely and accurate manner near some lower gas equipment; if the installation position is too low, the leak detection effect of gas equipment at higher locations will be greatly reduced. Moreover, once the installation is completed, it is difficult to adjust its installation height according to actual needs in the later stage, which limits its application scope in different scenarios.

[0005] Furthermore, regarding the ease of maintenance, when traditional fixed-installed gas alarms need to be maintained, overhauled, or have their batteries replaced, they are often very inconvenient to operate due to their high location. Maintenance personnel usually need to use climbing tools to perform operations, which not only increases the difficulty and risk of maintenance, but also prolongs maintenance time and increases maintenance costs. For example, in some commercial kitchens or industrial sites, there are a large number of gas alarms and their installation locations are complex. Fixed installation methods make regular maintenance work extremely cumbersome and difficult. The alarms may not be maintained in a timely manner due to inconvenient maintenance, affecting their normal operation and service life, and thus increasing the potential risk of gas leaks. Summary of the invention

[0006] In view of the problems existing in the prior art, the present invention provides a liftable gas alarm system, which has the advantages of satisfying the flexibility of height adjustment, installation adaptability and maintenance convenience, and solves the problems of the prior art.

[0007] The present invention is implemented as follows: a liftable gas alarm system includes a base, the base is provided with a connecting mechanism for connecting to a wall, the base is rotatably connected to a first rotating shaft and a second rotating shaft, the first rotating shaft is provided with a first gear, the second rotating shaft is provided with a second gear, a gap is left between the first gear and the second gear, a double-sided rack is provided in the gap, the two sides of the double-sided rack are respectively meshed with the first gear and the second gear, and a gas alarm is fixedly connected to the double-sided rack; the base is fixedly connected to a frame, the frame is fixedly connected to a motor, and the output end of the motor is fixedly connected to the second gear.

[0008] As a preferred embodiment of the present invention, the gas alarm includes a sensor module, a controller, a communication module and an alarm module, and the sensor module, the communication module and the alarm module are all connected to the controller by signals; The sensor module is used to detect the gas concentration; The controller is used to receive the gas concentration signal transmitted by the sensor module and analyze and process the signal. When the gas concentration signal exceeds the preset safety threshold, the controller triggers the alarm module to send an alarm signal and controls the communication module to send the alarm information to the preset receiving device. The communication module is used to transmit the working status information and gas concentration data of the gas alarm to an external device or a remote monitoring platform in real time; The alarm module is used to send out sound and light alarm signals after receiving the alarm command sent by the controller.

[0009] As a preferred embodiment of the present invention, the controller signal is connected to the motor. When the sensor module detects that the gas concentration reaches a first preset value, the controller controls the motor to rotate, thereby moving the gas alarm up and down. If the sensor module detects that the gas concentration reaches a second preset value, the alarm module is controlled to sound an alarm; wherein the second preset value is greater than the first preset value.

[0010] As a preferred embodiment of the present invention, the bilateral rack includes a left rack and a right rack symmetrically arranged, and the left rack and the right rack are respectively meshed with a first gear and a second gear; the corresponding positions of the left rack and the right rack are respectively provided with aligned left notches and right notches, and blocks are clamped in the left notch and the right notch, and a mounting base is fixedly connected to the block, and the gas alarm is fixedly connected to the mounting base.

[0011] As a preferred embodiment of the present invention, a connecting plate is fixedly connected to a side of the block away from the mounting seat, the connecting plate is attached to the back side of the double-sided rack, and the edge of the connecting plate is aligned with the rack of the double-sided rack.

[0012] As a preferred embodiment of the present invention, a power supply bar is fixedly connected to the base; a channel is provided inside the block, and a power supply sheet is provided in the channel, one end of the power supply sheet is connected to the gas alarm, and the other end of the power supply sheet is connected to the power supply bar.

[0013] As a preferred embodiment of the present invention, the connecting mechanism includes a first connecting component and a second connecting component for embedding into the wall, and the first connecting component and the second connecting component are symmetrically arranged.

[0014] As a preferred embodiment of the present invention, the first connecting component includes a first circular tube, and a spring piece is fixedly connected to the interior of the first circular tube; a first round rod is inserted into the interior of the first circular tube, and the first round rod is fixedly connected to the first rotating shaft. A plurality of slots are equidistantly arranged on the first circular rod, and the spring piece is snapped into one of the slots.

[0015] As a preferred embodiment of the present invention, the second connecting assembly includes a second round tube, the second round tube includes an outer sub-segment and an inner sub-segment which are coaxially fixedly connected, and the inner wall of the inner sub-segment is provided with an internal thread; the second rotating shaft is fixedly connected to a second round rod through a coupling, the second round rod is provided with a strip groove, a cylinder is slidably sleeved on the second round rod, a fixing strip is fixedly connected to the interior of the cylinder, the fixing strip is slidably connected to the strip groove, and the outer surface of the cylinder is provided with an external thread connected to the internal thread.

[0016] Compared with the prior art, the present invention has the following beneficial effects: Height adjustment flexibility: The height of the gas alarm can be easily adjusted according to the actual use environment and needs. For example, in places such as kitchens, different gas equipment has different heights. The alarm can be adjusted to a suitable height to detect gas leaks more accurately and improve the effectiveness and reliability of detection.

[0017] Installation adaptability: It can adapt to different installation scenarios and space layouts. Whether the base is installed near a higher ceiling or at a relatively low position, the lifting function can be used to place the alarm at the optimal working height range, reducing the detection blind area caused by the installation position limitation.

[0018] Convenient maintenance: When the gas alarm needs to be maintained, repaired or the battery needs to be replaced, it can be lowered to a convenient height without the need for climbing tools, which reduces the difficulty and risk of maintenance, improves maintenance efficiency, and reduces maintenance costs and time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a liftable gas alarm system provided by an embodiment of the present invention; Figure 2It is a structural schematic diagram of a liftable gas alarm system with split double-sided racks provided in an embodiment of the present invention; Figure 3 The embodiment of the present invention provides Figure 1 A schematic diagram of the enlarged structure of part A; Figure 4 1 is a schematic diagram of the top view of the structure of a liftable gas alarm system provided by an embodiment of the present invention; Figure 5 The embodiment of the present invention provides Figure 4 A schematic diagram of the enlarged structure of part B; Figure 6 The embodiment of the present invention provides Figure 4 Schematic diagram of the cross-sectional structure of the CC part; Figure 7 The embodiment of the present invention provides Figure 6 A schematic diagram of the enlarged structure of part E in the middle; Figure 8 The embodiment of the present invention provides Figure 4 Schematic diagram of the cross-sectional structure of the DD part; Fig. 9 The embodiment of the present invention provides Figure 8 Schematic diagram of the enlarged structure of part F.

[0020] In the figure: 1. base; 2. first rotating shaft; 3. second rotating shaft; 4. first gear; 5. second gear; 6. double-sided rack; 61. left rack; 62. right rack; 63. left notch; 64. right notch; 7. gas alarm; 8. rack; 9. motor; 10. block; 11. mounting base; 12. connecting plate; 13. power supply bar; 14. power supply sheet; 15. first round tube; 16. spring piece; 17. first round rod; 18. slot; 19. second round tube; 20. second round rod; 21. strip slot; 22. cylinder; 23. fixing bar. DETAILED DESCRIPTION

[0021] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0022] The structure of the present invention is described in detail below in conjunction with the accompanying drawings.

[0023] like Figures 1 to 9As shown, the liftable gas alarm system provided by the embodiment of the present invention includes a base 1, on which a connecting mechanism for connecting to a wall is provided, and the base 1 is rotatably connected to a first rotating shaft 2 and a second rotating shaft 3, on which a first gear 4 is provided, and on which a second rotating shaft 3 is provided, and a gap is left between the first gear 4 and the second gear 5, and a double-sided rack 6 is provided in the gap, and the two sides of the double-sided rack 6 are respectively meshed with the first gear 4 and the second gear 5, and a gas alarm 7 is fixedly connected to the double-sided rack 6; a frame 8 is fixedly connected to the base 1, and a motor 9 is fixedly connected to the frame 8, and the output end of the motor 9 is fixedly connected to the second gear 5.

[0024] Through the above arrangement, in the initial state, the gas alarm 7 is fixed between the first gear 4 and the second gear 5 through the double-sided rack 6, the motor 9 is in a stopped state, and the entire system remains stationary.

[0025] When the height of the gas alarm 7 needs to be adjusted, the motor 9 is started. The output end of the motor 9 drives the second gear 5 to start rotating. Since the two sides of the double-sided rack 6 are respectively meshed with the first gear 4 and the second gear 5, the rotation of the second gear 5 causes the double-sided rack 6 to produce linear movement.

[0026] When the second gear 5 rotates clockwise, the double-sided rack 6 moves upward, driving the gas alarm 7 fixed thereon to rise; conversely, when the second gear 5 rotates counterclockwise, the double-sided rack 6 moves downward, and the gas alarm 7 falls accordingly. By controlling the forward and reverse rotation of the motor 9 and the rotation time or angle, the gas alarm 7 can be accurately adjusted to the desired height position.

[0027] Specifically, the gas alarm 7 includes a sensor module, a controller, a communication module and an alarm module, and the sensor module, the communication module and the alarm module are all connected to the controller by signals; The sensor module is used to detect the gas concentration; The controller is used to receive the gas concentration signal transmitted by the sensor module and analyze and process the signal. When the gas concentration signal exceeds the preset safety threshold, the controller triggers the alarm module to send an alarm signal and controls the communication module to send the alarm information to the preset receiving device. The communication module is used to transmit the working status information and gas concentration data of the gas alarm 7 to an external device or a remote monitoring platform in real time; The alarm module is used to send out sound and light alarm signals after receiving the alarm command sent by the controller.

[0028] Furthermore, the controller signal is connected to the motor 9. When the sensor module detects that the gas concentration reaches a first preset value, the controller controls the motor 9 to rotate, thereby moving the gas alarm 7 up and down. If the sensor module detects that the gas concentration reaches a second preset value, the alarm module is controlled to sound an alarm; wherein the second preset value is greater than the first preset value.

[0029] When the gas alarm system 7 operates normally, the sensor module continuously monitors the gas concentration in the surrounding environment. When the gas concentration gradually rises and reaches the first preset value, the sensor module transmits the signal to the controller. After receiving the signal, the controller starts the motor 9. The motor 9 drives the second gear 5 to rotate. Due to the meshing relationship between the double-sided rack 6 and the first gear 4 and the second gear 5, the double-sided rack 6 begins to move, so that the gas alarm 7 begins to move up and down. The purpose is to adjust to a more suitable detection position, or to avoid false alarms caused by local gas accumulation, and to further confirm the gas concentration by moving. During the movement of the gas alarm 7, if the gas concentration continues to rise and reaches the second preset value, the sensor module transmits the signal to the controller again, and the controller controls the alarm module to emit an audible and visual alarm. This indicates that the gas leakage is more serious at this time, and it is necessary to immediately attract the attention of the surrounding personnel and take corresponding measures, such as closing the gas valve, ventilation, and personnel evacuation.

[0030] Through the above settings, the beneficial effects are as follows: Accurate alarm: By setting two different preset values, a graded early warning mechanism is implemented. When the gas concentration just reaches the first preset value, the alarm position is adjusted and a preliminary early warning judgment is made first to avoid immediate triggering of a strong alarm due to some instantaneous, local gas concentration fluctuations, reducing the possibility of false alarms. Only when the gas concentration does reach the more dangerous second preset value, the comprehensive alarm function is activated, which can more accurately judge the severity of the gas leak, making the alarm more reliable and targeted.

[0031] Optimize detection: When the gas concentration reaches the first preset value, the alarm is activated to move, allowing the alarm to re-detect the gas concentration at different heights or positions, expanding the detection range, helping to more comprehensively and accurately grasp the gas leakage in the environment, improve the effectiveness of detection, and promptly discover potential dangers and hidden dangers to ensure the safety of gas use places.

[0032] Intelligent response: The entire system automatically performs different response operations according to changes in gas concentration, from adjusting the alarm position to finally sounding the alarm, without the need for human intervention. This reflects the characteristics of intelligence, improves the automation level and processing efficiency of the gas alarm 7 system in responding to gas leaks, reduces the risk of accidents due to human negligence or delays, and provides a more efficient and intelligent solution for gas safety management.

[0033] Furthermore, the bilateral rack 6 includes a symmetrically arranged left rack 61 and a right rack 62, and the left rack 61 and the right rack 62 are respectively meshed with the first gear 4 and the second gear 5; the corresponding positions of the left rack 61 and the right rack 62 are respectively provided with aligned left notches 63 and right notches 64, and a clamping block 10 is clamped in the left notch 63 and the right notch 64, and a mounting base 11 is fixedly connected to the clamping block 10, and the gas alarm 7 is fixedly connected to the mounting base 11.

[0034] When installing the gas alarm 7, first align the block 10 with the left notch 63 and the right notch 64 so that the block 10 is engaged therein, so that the mounting seat 11 is connected to the double-sided rack 6, and then the gas alarm 7 is installed on the double-sided rack 6 and is in the working position through the fixed connection with the mounting seat 11. When the gas alarm 7 needs to be disassembled, the double-sided rack 6 is disengaged from the first gear 4 and the second gear 5. At this time, the left rack 61 and the right rack 62 can be relatively separated, so that the block 10 can be disengaged from the left notch 63 and the right notch 64, and then the mounting seat 11 can be removed from the double-sided rack 6 together with the gas alarm 7, completing the disassembly process.

[0035] The beneficial effects of the above settings are as follows: Convenient installation: This structural design makes the installation process of the gas alarm 7 simple and direct. The installation can be completed by simply inserting the block 10 into the gap of the left and right racks 62, without the need for complicated threaded connections or other cumbersome fixing methods, which greatly shortens the installation time and reduces the installation difficulty. Even non-professionals can easily perform the installation operation, thereby improving the installation efficiency.

[0036] Easy disassembly: When the gas alarm 7 needs to be maintained, repaired, replaced or the system needs to be upgraded, the disassembly process is also convenient. After the double-sided rack 6 is disengaged from the gear, the left and right racks 62 can be easily separated, so that the block 10 and the mounting seat 11 can be smoothly disengaged, and the gas alarm 7 can be easily removed. This not only reduces the time and labor costs required for maintenance work, but also effectively avoids damage to other components during the disassembly process, prolongs the service life of the entire system, and improves the maintainability and flexibility of the system.

[0037] Improved versatility: Due to the detachable clamping connection between the mounting base 11 and the double-sided rack 6, the gas alarm 7 can be conveniently used with double-sided racks 6 of different specifications or designs and related lifting mechanisms. When upgrading or replacing a different model of gas alarm 7, it is only necessary to ensure that the size of the clamping block 10 of the mounting base 11 matches the notch of the new double-sided rack 6 to achieve quick replacement, thereby improving the versatility and adaptability of the product and reducing the overall cost increase caused by equipment upgrading.

[0038] Furthermore, a connecting plate 12 is fixedly connected to one side of the block 10 away from the mounting seat 11 , and the connecting plate 12 is attached to the back side of the double-sided rack 6 , and the edge of the connecting plate 12 is aligned with the rack of the double-sided rack 6 .

[0039] During the operation of the liftable gas alarm system, the double-sided rack 6 moves up and down under the drive of the first gear 4 and the second gear 5 to realize the lifting function of the gas alarm 7. Under normal circumstances, the double-sided rack 6 should only perform stable linear motion in the vertical direction. However, due to possible external interference forces, installation errors or system vibrations, the double-sided rack 6 may have a tendency to move along the axial direction of the gear. At this time, since the connecting plate 12 on the block 10 is tightly fitted on the back of the double-sided rack 6, and the edge of the connecting plate 12 is aligned with the rack of the double-sided rack 6, when the double-sided rack 6 attempts to move axially, the connecting plate 12 will contact and block the side of the gear. Because the gear is fixed on the corresponding rotating shaft and the position is relatively stable, this contact between the connecting plate 12 and the side of the gear limits the axial freedom of the double-sided rack 6, making it impossible to move axially easily, thereby ensuring that the double-sided rack 6 always maintains a good meshing state with the gear, ensuring the stable and reliable operation of the lifting function of the gas alarm 7.

[0040] Furthermore, a power supply bar 13 is fixedly connected to the base 1; a channel is provided inside the block 10, and a power supply sheet 14 is provided in the channel. One end of the power supply sheet 14 is connected to the gas alarm 7, and the other end of the power supply sheet 14 is connected to the power supply bar 13.

[0041] When the gas alarm 7 is in a normal installation working state, the card block 10 is inserted into the left notch 63 and the right notch 64 of the double-sided rack 6. At this time, one end of the power-carrying piece 14 in the internal channel of the card block 10 is connected to the power supply line of the gas alarm 7, and the other end is in contact with and connected to the power supply bar 13 fixed on the base 1, thereby forming a complete power supply circuit, providing power support for the gas alarm 7 so that it can operate normally, including the sensor module for gas concentration detection, the controller for data processing and transmission of control signals, the communication module for data interaction, and the alarm module for standby.

[0042] When the gas alarm 7 needs to be disassembled, the double-sided rack 6 is disengaged from the gear. Since the clamping block 10 is in a linkage relationship with the double-sided rack 6, the clamping block 10 will also be displaced accordingly during the process of the double-sided rack 6 disengaging from the gear. This displacement will cause the power supply sheet 14 in the internal channel of the clamping block 10 to gradually separate from the power supply bar 13 on the base 1. When the separation reaches a certain degree, the power supply circuit is cut off, and power can no longer be supplied to the gas alarm 7, thereby realizing the automatic power-off function.

[0043] The beneficial effects of the above settings are: Safety and convenience: When the gas alarm 7 is disassembled, the power is automatically cut off, which effectively avoids the risk of electric shock caused by accidentally touching the live parts during the disassembly process, and ensures the personal safety of the operator. At the same time, there is no need for additional manual power-off steps, which simplifies the disassembly process, makes the disassembly work more convenient and efficient, and improves the convenience of maintenance and replacement of equipment.

[0044] Protect equipment and systems: prevent short circuits, leakage and other electrical faults that may occur after the gas alarm 7 is removed, which may damage the equipment due to the power supply line being powered on. It also avoids the potential impact of abnormal power on other related components in the entire gas alarm system, reduces the risk of system failure or damage due to electrical problems, and is conducive to extending the service life of equipment and systems and reducing repair costs and maintenance workload.

[0045] Furthermore, the connecting mechanism includes a first connecting component and a second connecting component for embedding into the wall, and the first connecting component and the second connecting component are symmetrically arranged.

[0046] Specifically, the first connecting component includes a first circular tube 15, and a spring piece 16 is fixedly connected to the inside of the first circular tube 15; a first round rod 17 is inserted into the inside of the first circular tube 15, and the first round rod 17 is fixedly connected to the first rotating shaft 2. A plurality of slots 18 are equidistantly arranged on the first circular rod 17, and the spring piece 16 is snapped into one of the slots 18.

[0047] Furthermore, the second connecting assembly includes a second circular tube 19, which includes an outer sub-segment and an inner sub-segment that are coaxially fixedly connected, and the inner wall of the inner sub-segment is provided with an internal thread; the second rotating shaft 3 is fixedly connected to a second round rod 20 through a coupling, and a strip groove 21 is provided on the second round rod 20, and a cylinder 22 is slidably sleeved on the second round rod 20, and a fixing strip 23 is fixedly connected to the inside of the cylinder 22, and the fixing strip 23 is slidably connected to the strip groove 21, and the outer surface of the cylinder 22 is provided with an external thread connected to the internal thread.

[0048] When in use, the first round tube 15 and the second round tube 19 are embedded in the wall. When the first gear 4 and the second gear 5 move the double-sided rack 6 up and down, the following processes are carried out simultaneously: First, the first round rod 17 rotates, thereby making different slots 18 cooperate with the spring pieces 16. When adjusted to the preset position, the first round rod 17 cannot rotate due to the cooperation between the slots 18 and the spring pieces 16, thereby completing the locking of the first gear 4 and preventing the double-sided rack 6 from moving accidentally.

[0049] Second, during the lifting, lowering, installation and disassembly of the double-sided rack 6, the second rotating shaft 3 drives the second round rod 20 to rotate, and then the first cylinder 22 moves axially, but during this process, the external thread is always connected to the internal thread (the number of turns of the external thread and the internal thread are relatively large), and at this time, the base 1 is always in a connected state with the wall.

[0050] When the base 1 needs to be disassembled, the motor 9 only needs to drive the second round rod 20 to rotate continuously until the external thread and the internal thread are disengaged, and then the base 1 can be disassembled.

[0051] Working principle of the present invention: When in use, in the initial state, the gas alarm 7 is fixed between the first gear 4 and the second gear 5 by the double-sided rack 6, the motor 9 is in a stopped state, and the entire system remains stationary. When the height of the gas alarm 7 needs to be adjusted, start the motor 9. The output end of the motor 9 drives the second gear 5 to start rotating. Since the two sides of the double-sided rack 6 are respectively meshed with the first gear 4 and the second gear 5, the rotation of the second gear 5 causes the double-sided rack 6 to produce linear movement. When the second gear 5 rotates clockwise, the double-sided rack 6 will move upward, driving the gas alarm 7 fixed thereon to rise; conversely, when the second gear 5 rotates counterclockwise, the double-sided rack 6 moves downward, and the gas alarm 7 drops accordingly. By controlling the forward and reverse rotation of the motor 9 and the rotation time or angle, the gas alarm 7 can be accurately adjusted to the desired height position.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0053] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A liftable gas alarm system, comprising a base (1), wherein the base (1) is provided with a connecting mechanism for connecting to a wall, wherein: The base (1) is rotatably connected to a first rotating shaft (2) and a second rotating shaft (3); a first gear (4) is provided on the first rotating shaft (2); a second gear (5) is provided on the second rotating shaft (3); a gap is left between the first gear (4) and the second gear (5); a double-sided rack (6) is provided in the gap; two sides of the double-sided rack (6) are respectively meshed with the first gear (4) and the second gear (5); a gas alarm (7) is fixedly connected to the double-sided rack (6); The base (1) is fixedly connected to a frame (8), the frame (8) is fixedly connected to a motor (9), and the output end of the motor (9) is fixedly connected to the second gear (5).

2. The liftable gas alarm system according to claim 1, characterized in that: The gas alarm (7) comprises a sensor module, a controller, a communication module and an alarm module, wherein the sensor module, the communication module and the alarm module are all signal-connected to the controller; The sensor module is used to detect the gas concentration; The controller is used to receive the gas concentration signal transmitted by the sensor module and analyze and process the signal. When the gas concentration signal exceeds the preset safety threshold, the controller triggers the alarm module to send an alarm signal and controls the communication module to send the alarm information to the preset receiving device. The communication module is used to transmit the working status information and gas concentration data of the gas alarm (7) to an external device or a remote monitoring platform in real time; The alarm module is used to send out sound and light alarm signals after receiving the alarm command sent by the controller.

3. The liftable gas alarm system according to claim 2, characterized in that: The controller signal is connected to the motor (9); when the sensor module detects that the gas concentration reaches a first preset value, the controller controls the motor (9) to rotate, thereby moving the gas alarm (7) up and down; if the sensor module detects that the gas concentration reaches a second preset value, the alarm module is controlled to sound an alarm; wherein the second preset value is greater than the first preset value.

4. The liftable gas alarm system according to claim 1, characterized in that: The double-sided rack (6) comprises a left rack (61) and a right rack (62) which are symmetrically arranged, and the left rack (61) and the right rack (62) are respectively meshed with the first gear (4) and the second gear (5); Aligned left notches (63) and right notches (64) are respectively provided at corresponding positions of the left rack (61) and the right rack (62); a clamping block (10) is clamped in the left notch (63) and the right notch (64); a mounting seat (11) is fixedly connected to the clamping block (10); and the gas alarm (7) is fixedly connected to the mounting seat (11).

5. The liftable gas alarm system according to claim 4, characterized in that: A connecting plate (12) is fixedly connected to one side of the clamping block (10) away from the mounting seat (11); the connecting plate (12) is attached to the back side of the double-sided rack (6); and the edge of the connecting plate (12) is aligned with the rack of the double-sided rack (6).

6. The liftable gas alarm system according to claim 4, characterized in that: A power supply bar (13) is fixedly connected to the base (1); A channel is provided inside the card block (10), and a power supply sheet (14) is provided inside the channel. One end of the power supply sheet (14) is connected to the gas alarm (7), and the other end of the power supply sheet (14) is connected to the power supply bar (13).

7. The liftable gas alarm system according to claim 1, characterized in that: The connecting mechanism comprises a first connecting component and a second connecting component for embedding into the wall, and the first connecting component and the second connecting component are symmetrically arranged.

8. The liftable gas alarm system according to claim 7, characterized in that: The first connecting assembly comprises a first round tube (15), the interior of the first round tube (15) being fixedly connected with a spring sheet (16); A first round rod (17) is inserted into the interior of the first round tube (15); the first round rod (17) is fixedly connected to the first rotating shaft (2); a plurality of slots (18) are equidistantly arranged around the first round rod (17); the spring sheet (16) is snap-fitted into one of the slots (18).

9. The liftable gas alarm system according to claim 8, characterized in that: The second connection assembly comprises a second circular tube (19), the second circular tube (19) comprising an outer sub-segment and an inner sub-segment coaxially fixedly connected, the inner wall of the inner sub-segment being provided with an internal thread; The second rotating shaft (3) is fixedly connected to a second round rod (20) via a coupling, a strip groove (21) is provided on the second round rod (20), a cylinder (22) is slidably sleeved on the second round rod (20), a fixing strip (23) is fixedly connected inside the cylinder (22), the fixing strip (23) is slidably connected to the strip groove (21), and an outer surface of the cylinder (22) is provided with an external thread connected to the internal thread.

Images