Pressure sensing integrated fire-fighting buzzer alarm device based on combined modularization

Abstract

The utility model relates to the technical field of fire safety equipment, and discloses a pressure sensing integrated fire-fighting buzzer alarm device based on combined modularization, which comprises a protective shell mechanism I. The top end of the protective shell mechanism I is rotatably connected with a protective shell mechanism II, and the top end of the protective shell mechanism I is provided with a pressure sensor mechanism. A sealing mechanism is arranged outside the first protective shell mechanism and the second protective shell mechanism. The pressure sensor mechanism comprises a connecting module, the bottom end of the connecting module is fixedly connected to the top end of the first protective shell mechanism, and the front end of the connecting module is fixedly connected with a signal conversion module and a core sensing module through first interfaces. According to the utility model, the nondestructive replacement modular design ensures that other parts are not damaged when the sensor part is maintained and replaced, the maintenance difficulty and cost are reduced, and the availability and reliability of the equipment are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire safety equipment technical field especially based on combination modularization's pressure sensing integrated fire buzzer alarm device. BACKGROUND

[0002] In the fire alarm system, the technology based on pressure detection plays a key role in fire warning, however, the existing pressure sensing structure has many deficiencies, the installation mode of traditional pressure sensor is tedious, and professional personnel often need to operate with complex tools, which consumes a lot of time and manpower, when the sensor needs to be replaced, since it is closely connected with the overall system, the disassembly process is easy to cause damage to other parts, and in complex environments such as high temperature, humidity and serious electromagnetic interference, the sensor detection accuracy decreases greatly, leading to fire false alarm or missing report, which greatly affects the reliability of the fire alarm system.

[0003] At present, the common solution includes adopting the integrated design pressure sensor, which closely combines the sensor and the alarm device to reduce the complexity of installation and maintenance, another solution is to use high-precision sensor materials to improve detection accuracy, in addition, some technologies increase the protective cover outside the sensor to cope with complex environment. However, these solutions still have problems such as complex installation, difficult maintenance, poor environmental adaptability, etc., the integrated design simplifies the installation, but increases the difficulty of maintenance; high-precision materials have high cost, and cannot completely solve the precision problem in complex environment; the external protective cover can provide certain protection, but cannot fundamentally solve the problems of electromagnetic interference and high temperature and humidity.

[0004] The defects of the prior art mainly include complex installation process, difficult maintenance, high cost, poor environmental adaptability, unstable detection accuracy, etc., which will affect the normal use of the pressure sensor, and is not conducive to the use of fire fighting facilities, therefore, the pressure sensing integrated fire buzzer alarm device based on combination modularization is proposed to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] In order to make up for the above deficiencies, the utility model provides a pressure sensing integrated fire buzzer alarm device based on combination modularization, aiming at improving the problems of the prior art, such as complex installation process, difficult maintenance, high cost, poor environmental adaptability, unstable detection accuracy, etc.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a pressure sensor integrated fire alarm device of combination type modular based on siren, including protective shell mechanism no.

[0008] The pressure sensor mechanism includes a connecting module, a signal conversion module, and a core sensing module, the connecting module is fixedly connected to the top end of the protective shell mechanism one, the front end of the connecting module is fixedly connected with the signal conversion module and the core sensing module through an interface one respectively, the top end of the protective shell mechanism one is fixedly connected with a plurality of guide blocks, the interiors of the connecting module, the signal conversion module, and the core sensing module are all threadedly connected with fixing screws, the rear end of the connecting module is fixedly connected with a butt joint block, the exterior of the butt joint block is provided with a limiting assembly;

[0009] Through the above technical solution: the rotating connection design of the protective shell mechanism one and the protective shell mechanism two makes the installation, maintenance, and repair of the components such as the pressure sensor mechanism inside the device extremely convenient, the staff can easily open the protective shell mechanism two, operate the interior, and conveniently close it after completing the operation, at the same time, the protective shell mechanism one and the protective shell mechanism two cooperate with the sealing mechanism to provide a good protective environment for the internal components, effectively resist the physical damage, dust, and water vapor interference from the outside, the pressure sensor mechanism adopts a modular design, the connecting module is stably connected to the top end of the protective shell mechanism one, providing an installation basis for the signal conversion module and the core sensing module, the interface one realizes the quick and reliable connection between the modules, ensuring the stability of signal transmission, the guide blocks can provide accurate installation guidance for the modules during installation, preventing module damage or functional abnormalities due to installation errors, the threaded connection of the fixing screws not only ensures the firmness of the module connection, but also allows the staff to quickly disassemble and replace individual modules by rotating the fixing screws when needed, greatly reducing the maintenance difficulty and cost.

[0010] As a further description of the above technical solution:

[0011] The limiting assembly includes a rotating block, the interior of the rotating block is rotatably connected to the exterior of the butt joint block, the rear end of the rotating block is fixedly connected with a sliding ring, the exterior of the sliding ring is slidingly connected with a fixed ring, the exterior of the sliding ring is fixedly connected with a plurality of limiting blocks, the exterior of the fixed ring is slidingly connected with a mounting block, the interior of the mounting block is provided with a limiting slot, the exterior of the limiting block is slidingly connected in the interior of the limiting slot, the rear end of the sliding ring is fixedly connected with an extension column, the exterior of the extension column is sleeved with a spring;

[0012] Through the technical scheme, the limiting assembly provides accurate limiting for the docking process of the docking block and the alarm device main body, the rotating block can be flexibly rotated to drive the sliding ring to slide in the fixed ring and be limited by the limiting block and the limiting groove, and the rotating angle and position of the docking block are accurately limited. When the docking block is docked with the second interface, the accurate control can ensure the accuracy of the connection, thereby improving the reliability of the entire alarm device.

[0013] Further description of the technical scheme is as follows:

[0014] The second interface is slidably connected to the outside of the docking block, and the alarm device main body is fixedly connected to the outside of the second interface.

[0015] Through the technical scheme, the sliding connection mode of the docking block and the second interface provides a convenient way for the connection of the pressure sensor mechanism and the alarm device main body. This connection mode makes the installation process simpler and more efficient, and the staff can quickly dock the pressure sensor mechanism with the alarm device main body to realize the transmission of the pressure signal and trigger the alarm function of the alarm device main body, thereby responding to the pressure change in a timely manner in fire-fighting and other scenarios.

[0016] Further description of the technical scheme is as follows:

[0017] The rear end of the telescopic column is fixedly connected to the inside of the fixed ring, and the core sensing module is provided with a plurality of sensing heads on the outside.

[0018] Through the technical scheme, the rear end of the telescopic column is fixedly connected to the inside of the fixed ring, ensuring the stability of the telescopic column during work and providing reliable support for the movement of the sliding ring. The plurality of sensing heads on the outside of the core sensing module can collect pressure signals from different angles and positions, greatly improving the comprehensiveness and accuracy of pressure signal collection, so that the pressure sensor mechanism can more accurately perceive environmental pressure changes and provide a reliable data basis for subsequent signal conversion and alarm action.

[0019] Further description of the technical scheme is as follows:

[0020] The front end of the spring is fixedly connected to the rear end of the sliding ring, and the other end of the spring is fixedly connected to the inside of the fixed ring.

[0021] Through the technical scheme, the two ends of the spring are fixedly connected to the rear end of the sliding ring and the inside of the fixed ring, respectively. During the docking process, the spring can provide continuous elastic force for the sliding ring. When the docking block is rotated to the appropriate position, the spring pushes the sliding ring, so that the limiting block is stably clamped in the limiting groove, thereby ensuring the stability of the connection between the docking block and the second interface, preventing the connection from loosening due to vibration or other external forces during equipment operation, and ensuring the stability of signal transmission between the pressure sensor and the alarm device main body.

[0022] As a further description of the above technical solution:

[0023] The protective shell mechanism includes an outermost layer, the outermost layer is fixedly connected to the inside of the protective shell mechanism, an intermediate layer is fixedly connected to the inside of the protective shell mechanism, and an innermost layer is fixedly connected to the inside of the protective shell mechanism.

[0024] Through the above technical solution: the layered structure design of the protective shell mechanism 1, the outermost high-strength engineering plastic shell can effectively resist external mechanical impacts and protect the internal components from physical damage; the middle layer filled with heat-insulating and moisture-proof materials, such as aerogel and silicone, can effectively block the influence of external high temperature and humidity environment on the internal components and maintain the normal operating temperature and humidity conditions of the components; the innermost metal shielding layer can shield electromagnetic interference, ensuring that the internal circuits such as the pressure sensor mechanism are not affected by external electromagnetic signals, and ensuring the accuracy of signal acquisition and transmission.

[0025] As a further description of the above technical solution:

[0026] The sealing mechanism includes a sealing block, the sealing block is fixedly connected to the top of the first protective shell mechanism, the second protective shell mechanism has a sealing groove inside, and both the first and second protective shell mechanisms have sealing rings fixedly connected inside.

[0027] Through the above technical solution: the sealing block and the sealing groove in the sealing mechanism cooperate to achieve a preliminary seal when the second protective shell mechanism and the first protective shell mechanism are closed, preventing external impurities from entering from the joint of the protective shell. The sealing ring fits tightly against the outside of the mating block, further enhancing the sealing effect.

[0028] As a further description of the above technical solution:

[0029] The outer part of the sealing block is slidably connected to the inside of the sealing groove, and the outer parts of the two sealing rings are in contact with the outer part of the mating block.

[0030] The above technical solution achieves a sealing effect at the interface by contacting the sealing ring with the docking block, thus ensuring the safety of the internal instruments.

[0031] This utility model has the following beneficial effects:

[0032] 1. In the utility model, when installing, butt joint block is inserted into interface two, rotates rotating block and makes limiting block slide to specified position, and the butt joint of pressure sensor and alarm device main body is completed by spring elastic force, when needing to disassemble connection module, signal conversion module and core sensing module, rotates fixed screw and can quickly complete disassembly, and guiding block can prevent inserting wrong when replacing module, reduces maintenance difficulty and component damage risk, combined modular installation structure makes the installation of pressure sensor become extremely simple, does not need professional tool and complex operation, and ordinary personnel can complete installation, improves installation efficiency, reduces installation cost, nondestructive replacement modular design ensures that other components are not damaged when maintaining and replacing sensor components, reduces maintenance difficulty and cost, improves the availability and reliability of equipment, complex environment adaptability design effectively improves the detection precision of pressure sensor under complex environment, reduces the false alarm and the missing report caused by environmental factors, provides more reliable fire warning information for fire alarm system.

[0033] 2. In the utility model, when protective shell mechanism one and two are closed, sealing block slides into sealing groove, sealing ring tightly adheres to butt joint block outside, realizes the sealing of device, protects internal electronic components, prolongs the service life of device, and ensures reliable operation under complex environment. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 It is the three-dimensional schematic view of the pressure sensing integrated fire buzzer alarm device based on combined modularization provided by the utility model;

[0035] Figure 2 It is the structure schematic view of rotating block of the pressure sensing integrated fire buzzer alarm device based on combined modularization provided by the utility model;

[0036] Figure 3 It is the structure schematic view of rotating block of the pressure sensing integrated fire buzzer alarm device based on combined modularization provided by the utility model; Figure 2

[0037] Figure 4 It is the structure schematic view of intermediate layer of the pressure sensing integrated fire buzzer alarm device based on combined modularization provided by the utility model.

[0038] LEGEND:

[0039] ​1, protective shell mechanism one; 11, the outermost layer; 12, the middle layer; 13, the innermost layer; 2, pressure sensor mechanism; 21, connection module; 22, interface one; 23, guide block; 24, fixed screw; 25, signal conversion module; 26, core sensing module; 27, sensing head; 28, docking block; 29, limiting assembly; 291, rotating block; 292, sliding ring; 293, limiting block; 294, fixed ring; 295, limiting groove; 296, mounting block; 297, telescopic column; 298, spring; 3, alarm device main body; 4, sealing mechanism; 41, sealing block; 42, sealing groove; 43, sealing ring; 5, protective shell mechanism two; 6, interface two. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0041] REFERENCE Figures 1 to 3 An embodiment provided by the utility model: based on the pressure sensing integrated fire buzzer alarm device of combination modular, including protective shell mechanism one 1, the top of protective shell mechanism one 1 rotatably connected with protective shell mechanism two 5, this rotatable connection makes protective shell mechanism two 5 open or close flexibly, it is convenient to install, overhaul etc. operation to internal component, the top of protective shell mechanism one 1 is provided with pressure sensor mechanism 2, pressure sensor mechanism 2 as core component, is responsible for gathering pressure signal and carries out preliminary processing, the outside of protective shell mechanism one 1 and protective shell mechanism two 5 is provided with sealing mechanism 4, sealing mechanism 4 can effectively block the impurity such as dust, moisture etc. of outside into the inside of device, ensure that internal electronic component runs stably under good environment;

[0042] The pressure sensor mechanism 2 comprises a connecting module 21, the bottom end of the connecting module 21 is fixedly connected to the top end of the protective shell mechanism one 1, the stable connection mode guarantees the integrity and stability between the pressure sensor mechanism 2 and the protective shell mechanism one 1, the front end of the connecting module 21 is fixedly connected with a signal conversion module 25 and a core sensing module 26 through an interface one 22 respectively, the interface one 22 enables the signal conversion module 25 and the core sensing module 26 to be conveniently connected with the connecting module 21, realizes the transmission and integration of signals, an adaptive filtering algorithm is added in the signal conversion module 25, the filtering parameters are automatically adjusted according to the change of environmental parameters, noise interference is removed, the accuracy of signals is improved, the top end of the protective shell mechanism one 1 is fixedly connected with a plurality of guide blocks 23, the guide blocks 23 play an important limiting and guiding role in the module installation process, can effectively avoid the situation that the position is inserted incorrectly during installation, the interiors of the connecting module 21, the signal conversion module 25 and the core sensing module 26 are all threadedly connected with fixing screws 24, this threaded connection mode is convenient for installation and can guarantee the firmness of the connection, when the operating personnel need to disassemble these modules, by rotating the fixing screws 24, each can be quickly disassembled, greatly improving the convenience of maintenance;

[0043] The rear end of the connecting module 21 is fixedly connected with a butt joint block 28, the butt joint block 28 is used for butt joint with the alarm device main body 3, the exterior of the butt joint block 28 is provided with a limiting assembly 29, the limiting assembly 29 can accurately control the stability of the butt joint block 28 when the butt joint block 28 is butt joint with the alarm device main body 3, ensures the accuracy and reliability of butt joint, the limiting assembly 29 comprises a rotating block 291, the interior of the rotating block 291 is rotatably connected to the exterior of the butt joint block 28, the rotating block 291 can flexibly rotate, providing a basis for the rotating operation of the butt joint block 28, the rear end of the rotating block 291 is fixedly connected with a sliding ring 292, the rotating block 291 can drive the sliding ring 292 to act when rotating, the exterior of the sliding ring 292 is slidably connected with a fixed ring 294, the fixed ring 294 plays a limiting and guiding role for the sliding of the sliding ring 292, the exterior of the sliding ring 292 is fixedly connected with a plurality of limiting blocks 293, the limiting blocks 293 move with the movement of the sliding ring 292, and play a key positioning role in the butt joint process, the interior of an installation block 296 is provided with a limiting groove 295, the exterior of the limiting block 293 is slidably connected in the interior of the limiting groove 295, the sliding of the limiting block 293 in the limiting groove 295 accurately controls the rotating angle and position of the butt joint block 28, the rear end of the sliding ring 292 is fixedly connected with an extension column 297, the extension column 297 can stretch and contract with the movement of the sliding ring 292, and plays an auxiliary supporting role for the movement of the sliding ring 292;

[0044] The outer part of the telescopic column 297 is sleeved with a spring 298, which provides elastic force for the sliding ring 292. When the butt joint block 28 is successfully butt jointed with the interface two 6 and rotated to the appropriate position, the spring 298 will continuously push the sliding ring 292 to slide to the outside of the fixed ring 294, so that the limiting block 293 is limited in the inside of the limiting groove 295, completing the butt joint of the whole pressure sensor and the whole alarm device main body 3, ensuring the stability of the connection. The outside of the butt joint block 28 is slidingly connected with the interface two 6, which provides an adaptive interface for the connection of the butt joint block 28 and the alarm device main body 3, so that the two can be smoothly connected. The outside of the interface two 6 is fixedly connected with the alarm device main body 3, realizing the final connection of the pressure sensor mechanism 2 and the alarm device main body 3, completing the transmission of the pressure signal and triggering the alarm function. The rear end of the telescopic column 297 is fixedly connected in the inside of the fixed ring 294. The outside of the core sensing module 26 is provided with a plurality of sensing heads 27, which are used for accurately collecting external pressure signals.

[0045] The design of the plurality of sensing heads 27 can improve the comprehensiveness and accuracy of pressure collection. The front end of the spring 298 is fixedly connected to the rear end of the sliding ring 292, and the other end of the spring 298 is fixedly connected to the inside of the fixed ring 294, so that the spring 298 can effectively provide elastic force for the sliding ring 292 and maintain the normal work of the limiting assembly 29. The outermost layer 11 is made of high-strength and corrosion-resistant engineering plastic shell, which can effectively resist mechanical impact from the outside and provide reliable mechanical protection for the internal components. The outside of the outermost layer 11 is fixedly connected to the inside of the protective shell mechanism one 1, ensuring the stable installation of the outermost layer 11. The inside of the protective shell mechanism one 1 is fixedly connected with the middle layer 12, which is filled with heat insulation and moisture-proof materials such as aerogel and silica gel, which can effectively block the influence of high temperature and humid environment on the sensor and ensure the normal operation of the internal electronic components. The inside of the protective shell mechanism one 1 is fixedly connected with the innermost layer 13, which is made of a metal shielding layer with good thermal conductivity, which can effectively shield electromagnetic interference and protect the internal circuit of the sensor, ensuring accurate collection and transmission of pressure signals.

[0046] Specifically, the device comprises a protective shell mechanism one 1, the top end of which is rotatably connected with a protective shell mechanism two 5, facilitating opening and closing to install, overhaul and other operations on the internal components; the top end of the protective shell mechanism one 1 is provided with a pressure sensor mechanism 2 responsible for collecting and preliminarily processing pressure signals; an external sealing mechanism 4 can block dust, water vapor and other impurities, ensuring the normal operation of internal electronic components; the bottom end of a connecting module 21 of the pressure sensor mechanism 2 is fixed at the top end of the protective shell mechanism one 1, and the front end is connected with a signal conversion module 25 and a core sensing module 26 through an interface one 22, realizing signal transmission integration; the guide block 23 at the top end of the protective shell mechanism one 1 can prevent module installation from being inserted incorrectly; the connecting module 21 and the like are threadedly connected through a fixing screw 24, facilitating disassembly and maintenance; the docking block 28 at the rear end of the connecting module 21 is used for docking with an alarm device main body 3; the limiting assembly 29 outside the docking block 28 is used for ensuring the stability of the connection; the rotating block 291 in the limiting assembly 29 drives the sliding ring 292 and other components to operate, and through the cooperation of the telescopic column 297 and the spring 298, the stable docking with the alarm device main body 3 is completed; the multiple sensing heads 27 of the core sensing module 26 can comprehensively and accurately collect pressure signals; the three-layer structure of the protective shell mechanism one 1 provides mechanical protection, heat and moisture resistance and electromagnetic shielding functions.

[0047] With reference to Figure 1 and Figure 4 , the sealing mechanism 4 comprises a sealing block 41 fixedly connected outside the top end of the protective shell mechanism one 1; when the protective shell mechanism two 5 is closed with the protective shell mechanism one 1, the sealing block 41 plays an important sealing role; the protective shell mechanism two 5 is internally provided with a sealing groove 42, which cooperates with the sealing block 41 to ensure the tightness of the sealing; the protective shell mechanism one 1 and the protective shell mechanism two 5 are both fixedly connected with a sealing ring 43 inside; the sealing ring 43 further enhances the sealing effect; the sealing block 41 is slidably connected outside the sealing groove 42; when the protective shell mechanism two 5 is closed with the protective shell mechanism one 1, the sealing block 41 will slide into the inside of the sealing groove 42, realizing preliminary sealing; the outside of the two sealing rings 43 is in contact with the outside of the docking block 28; at this time, the sealing rings 43 inside the protective shell mechanism one 1 and the protective shell mechanism two 5 will tightly adhere to the outside of the docking block 28, thereby realizing omnidirectional sealing effect, preventing external impurities from entering the inside of the device through the connection between the docking block 28 and the interface two 6.

[0048] Specifically, when the protective shell mechanism two 5 is closed with the protective shell mechanism one 1, the sealing block 41 precisely slides into the sealing groove 42, and the sealing ring 43 tightly surrounds and adheres to the docking block 28, which can effectively isolate dust, water vapor and other impurities from invading, protecting the internal electronic instruments.

[0049] Working principle: when the pressure sensor needs to be installed on the alarm device body 3 as a whole, the butt joint block 28 is inserted into the interface two 6, and the sliding ring 292 and the fixed ring 294 are driven to slide in the installation block 296 by rotating the block 291, and the outer part of the limiting block 293 slides in the limiting groove 295, when the butt joint block 28 and the interface two 6 are successfully connected, the sliding ring 292 is driven to rotate by rotating the rotating block 291, so that the limiting block 293 slides horizontally in the limiting groove 295, when the limiting block 293 slides to the specified position in the limiting groove 295, the spring 298 continuously pushes the sliding ring 292 to slide out of the fixed ring 294, so that the limiting block 293 is limited in the limiting groove 295, at this time, the butt joint of the pressure sensor as a whole and the alarm device body 3 as a whole is completed, at this time, the information can be collected through the sensing head 27, and the collected pressure signal is converted into an electrical signal through the signal conversion module 25, and then transmitted to the alarm device body 3 as a whole through the connection module 21 to complete the pressure collection effect, the innermost layer 13 in the protection shell mechanism one 1 and the protection shell mechanism two 5 adopts a metal shielding layer with good thermal conductivity, which can effectively shield electromagnetic interference and protect the internal circuit of the sensor, the middle layer 12 is filled with heat insulation and moisture-proof materials such as aerogel and silica gel to prevent the influence of high temperature and humid environment on the sensor, and the innermost layer 13 uses high-strength and corrosion-resistant engineering plastic shell to provide mechanical protection.

[0050] When the operator needs to disassemble the connection module 21, the signal conversion module 25 and the core sensing module 26, the fixed screw 24 is rotated to quickly disassemble each part, the limiting and guiding of the guide block 23 can avoid the wrong insertion when replacing the module, effectively reduce the maintenance difficulty and the risk of component damage caused by improper operation, and when the protection shell mechanism two 5 and the protection shell mechanism one 1 are closed, the sealing block 41 slides into the sealing groove 42, and the sealing ring 43 in the protection shell mechanism one 1 and the protection shell mechanism two 5 tightly adheres to the outside of the butt joint block 28, thereby realizing the sealing effect.

[0051] Finally, it should be pointed out that: the above-mentioned is only the preferred embodiment of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A pressure-sensing integrated fire alarm device based on a modular design, comprising a protective housing mechanism (1), characterized in that: The top of the first protective shell mechanism (1) is rotatably connected to the second protective shell mechanism (5), and the top of the first protective shell mechanism (1) is provided with a pressure sensor mechanism (2). The outer sides of the first protective shell mechanism (1) and the second protective shell mechanism (5) are provided with a sealing mechanism (4). The pressure sensor mechanism (2) includes a connection module (21). The bottom end of the connection module (21) is fixedly connected to the top end of the protective shell mechanism (1). The front end of the connection module (21) is fixedly connected to a signal conversion module (25) and a core sensing module (26) through an interface (22). The top end of the protective shell mechanism (1) is fixedly connected to multiple guide blocks (23). The connection module (21), the signal conversion module (25), and the core sensing module (26) are all threaded with fixing screws (24). The rear end of the connection module (21) is fixedly connected to a docking block (28). The docking block (28) is provided with a limit component (29) on its exterior.

2. The pressure-sensing integrated fire alarm device based on a modular design as described in claim 1, characterized in that: The limiting component (29) includes a rotating block (291), the interior of which is rotatably connected to the exterior of the docking block (28). A sliding ring (292) is fixedly connected to the rear end of the rotating block (291), and a fixed ring (294) is slidably connected to the exterior of the sliding ring (292). Multiple limiting blocks (293) are fixedly connected to the exterior of the sliding ring (292), and an installation block (296) is slidably connected to the exterior of the fixed ring (294). A limiting groove (295) is formed inside the installation block (296), and the exterior of the limiting block (293) is slidably connected to the interior of the limiting groove (295). A telescopic column (297) is fixedly connected to the rear end of the sliding ring (292), and a spring (298) is sleeved on the exterior of the telescopic column (297).

3. The pressure-sensing integrated fire alarm device based on a modular design according to claim 2, characterized in that: The docking block (28) has an external sliding connection to an interface two (6), and the external fixed connection of the interface two (6) is to an alarm device body (3).

4. The pressure-sensing integrated fire alarm device based on a modular design as described in claim 2, characterized in that: The rear end of the telescopic column (297) is fixedly connected to the inside of the fixed ring (294), and multiple sensor heads (27) are provided on the outside of the core sensing module (26).

5. The pressure-sensing integrated fire alarm device based on a modular design according to claim 2, characterized in that: The front end of the spring (298) is fixedly connected to the rear end of the sliding ring (292), and the other end of the spring (298) is fixedly connected to the inside of the fixed ring (294).

6. The pressure-sensing integrated fire alarm device based on a modular design according to claim 1, characterized in that: The protective shell mechanism one (1) includes an outermost layer (11), the outermost layer (11) is fixedly connected to the outside of the protective shell mechanism one (1), the middle layer (12) is fixedly connected to the inside of the protective shell mechanism one (1), and the innermost layer (13) is fixedly connected to the inside of the protective shell mechanism one (1).

7. The pressure-sensing integrated fire alarm device based on a modular design according to claim 1, characterized in that: The sealing mechanism (4) includes a sealing block (41), the outer side of which is fixedly connected to the top of the first protective shell mechanism (1), and the inner side of the second protective shell mechanism (5) is provided with a sealing groove (42). Both the first protective shell mechanism (1) and the second protective shell mechanism (5) are fixedly connected with sealing rings (43).

8. The pressure-sensing integrated fire alarm device based on a modular design according to claim 7, characterized in that: The outer side of the sealing block (41) is slidably connected to the inside of the sealing groove (42), and the outer side of the two sealing rings (43) is in contact with the outer side of the mating block (28).

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