A suction type fire detection alarm device

Abstract

The present invention proposes an air-suction fire detection and alarm device, which relates to the field of fire early warning technology. The air-suction fire detection and alarm device of the present invention adopts a ring sleeve, an air intake pipe and a detection and alarm body. The ring sleeve is installed at the pipe seam position of two pipes through glass glue sealing. The inner side of the ring sleeve is provided with a gas flow groove. One end of the air intake pipe is connected to the ring sleeve, and the other end of the air intake pipe is connected to the detection and alarm body. The detection and alarm body is provided with a detection sensor and an audible and visual alarm that are electrically connected to each other. The ring sleeve includes an upper half, a lower half and a rubber nipple. The upper half is connected to one end of the air intake pipe. The rubber nipple is provided with a socket for inserting the upper half and the lower half. A rubber sealing block is provided in the socket. The lower half is provided with a fixing part connected to the upper half. The technical solution has the advantages of real-time monitoring and good leakage monitoring effect.

Description

Technical Field

[0001] The present invention relates to the technical field of fire early warning, and in particular to an air-suction type fire detection and alarm device. Background Art

[0002] In recent years, the development of fire detection technology has shown a trend of intelligence, diversification and systematization. As people's living standards improve, they pay more attention to the harm of fire and have higher and higher requirements for fire detection technology.

[0003] Natural gas fuel is one of the earliest and most widely used alternative fuels. However, when the content of natural gas in the air reaches a certain level, it will cause suffocation. When the concentration of natural gas reaches a certain proportion, it will cause a huge explosion, causing serious fire and affecting personal safety.

[0004] After natural gas pipelines are installed, they need to be inspected for leaks at their joints (seam). Even fragile or vulnerable seams require real-time monitoring to prevent fires. However, existing technologies lack effective products for detecting leaks at natural gas pipeline seams, leaving much room for improvement. Summary of the Invention

[0005] The purpose of the present invention is to provide an air-suction fire detection and alarm device, which can solve the problems existing in the prior art and propose corresponding solutions, and has the advantages of real-time monitoring and good leakage monitoring effect.

[0006] The embodiment of the present invention is achieved as follows:

[0007] An embodiment of the present application provides an air-suction fire detection and alarm device, which includes a ring sleeve, an air intake pipe and a detection and alarm body. The ring sleeve is installed at the pipe seam position of two pipes by means of glass glue sealing. A gas flow groove is provided on the inner side of the ring sleeve. One end of the air intake pipe is connected to the ring sleeve, and the other end of the air intake pipe is connected to the detection and alarm body. The detection and alarm body is provided with a detection sensor and an audible and visual alarm that are electrically connected to each other. The ring sleeve includes an upper half, a lower half and a rubber sleeve. The upper half is connected to one end of the air intake pipe. The rubber sleeve is provided with a socket for inserting the upper half and the lower half. A rubber sealing block is provided in the socket, and the lower half is provided with a fixing part connected to the upper half.

[0008] According to the technical solution of this embodiment, during installation, the upper and lower halves are aligned with the pipe seam of the pipeline, the rubber sleeve is installed, and the connection is fixed with fixing parts to realize the installation of the ring sleeve at the pipe seam position of the pipeline, and then glass glue is applied to the connection between the pipeline and the ring sleeve for sealing. During use, if a natural gas leak occurs at the pipe seam, the natural gas enters the gas flow groove, then enters the air inlet pipe, and finally enters the detection alarm body. The detection sensor of the detection alarm body detects the gas. If there is an abnormality, the sound and light alarm is controlled to sound and light alarm to alert relevant personnel to avoid fire. The ring sleeve better wraps the annular pipe seam, can collect leaked natural gas without omission, and has a better leakage monitoring effect.

[0009] In some embodiments of the present invention, the fixing member includes a buckle connected to the lower half, and the upper half is provided with a hook adapted to the buckle.

[0010] Through the technical solution of this embodiment, the upper half and the lower half are connected, the buckle ring is hung on the hook, and then pressed down hard to achieve a tighter connection between the upper half and the lower half, so that the ends of the upper half and the lower half squeeze the rubber sealing block to achieve better installation and sealing.

[0011] In some embodiments of the present invention, a detection cavity connected to the air intake pipe is provided inside the detection alarm body, the detection sensor is installed in the detection cavity, and a first one-way valve is provided on the top of the detection alarm body.

[0012] Through the technical solution of this embodiment, after the gas enters the detection cavity, the detection sensor analyzes and detects the gas, and after filling the detection cavity, it is discharged to the outside through the first one-way valve, preventing external gas from entering and interfering with gas monitoring.

[0013] In some embodiments of the present invention, the detection alarm body is further provided with a fan, and the fan blades of the fan extend into the air inlet pipe.

[0014] Through the technical solution of this embodiment, the fan drives the fan blades to rotate after being powered on, and the fan blades rotate to transport the gas in the air inlet pipe from left to right, which has a better use effect.

[0015] In some embodiments of the present invention, the upper half is provided with an air outlet connected to the air inlet pipe, a sealing partition close to the air outlet is provided in the gas flow groove, the gas flow groove is provided with an air inlet close to the sealing partition, the air inlet and the air outlet are respectively located on both sides of the sealing partition, and the air inlet is installed with a second one-way valve.

[0016] Through the technical solution of this embodiment, after the fan extracts the gas, the gas flows counterclockwise from the second one-way valve and then enters the air inlet pipe from the air outlet, which is convenient for real-time monitoring in coordination with the fan and has a better use effect.

[0017] In some embodiments of the present invention, a rubber sealing strip abutting against the pipeline is provided at the bottom of the sealing partition.

[0018] Through the technical solution of this embodiment, the rubber sealing strip has a better sealing effect and further improves the monitoring effect.

[0019] In some embodiments of the present invention, the detection alarm body is provided with a connector connected to a pipeline.

[0020] Through the technical solution of this embodiment, the detection alarm body is installed more stably and has a longer service life.

[0021] In some embodiments of the present invention, the connecting member includes a binding rope or a clamp.

[0022] The technical solution of this embodiment has a simple structure and is easier to install.

[0023] In some embodiments of the present invention, the detection sensor includes a gas sensor.

[0024] The technical solution of this embodiment is mature, stable and reliable.

[0025] In some embodiments of the present invention, a communication module is further included, and the communication module is electrically connected to the gas sensor.

[0026] The technical solution of this embodiment is more convenient to use.

[0027] Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects:

[0028] The embodiment of the present application provides an air-suction fire detection and alarm device, which is mainly composed of three parts: a ring sleeve, an air inlet pipe, and a detection and alarm body. The ring sleeve is used to be fixed at the connection between two pipes, that is, the position of the pipe seam, to collect natural gas leaked from the pipe seam; the air inlet pipe is used to transport and transfer gas, and transport the natural gas in the ring sleeve to the detection and alarm body; the detection and alarm body is used to detect and analyze the received gas, and issue an alarm after detecting a leak, reminding relevant personnel that there is a hidden fire. The detection and alarm body is composed of a detection sensor and an audible and visual alarm in the prior art, which is used to detect gas and issue an alarm. The ring sleeve adopts a circular plastic ring or metal ring, and the inner side wall of the ring sleeve is provided with a gas flow groove inward. At this time, the cross-section of the ring sleeve is in the shape of a "concave". The annular sleeve consists of three parts: a rubber nipple, an upper half, and a lower half of equal size. The concave-shaped rubber nipple has a through-hole, which houses a rubber seal. The upper end of the upper half is inserted into the upper hole, while the lower end of the lower half is inserted into the lower hole. The lower half is equipped with a fixing member, which is connected to the upper half. The ends of the upper and lower halves jointly squeeze the rubber seal, achieving a sealed connection between the upper and lower halves and forming the annular sleeve. The left end of the intake pipe is connected to the right side of the upper half, and the intake pipe is connected to the gas flow groove.

[0029] During installation, align the upper and lower halves with the pipe seam of the pipeline, install the rubber sleeve, and use fixings to fix the connection, so that the ring sleeve is installed at the pipe seam position of the pipeline, and then apply glass glue to the connection between the pipeline and the ring sleeve for sealing. During use, if a natural gas leak occurs at the pipe seam, the natural gas enters the gas flow groove, then enters the air intake pipe, and finally enters the detection alarm body. The detection sensor of the detection alarm body detects the gas. If there is an abnormality, the sound and light alarm is controlled to sound and light alarm to remind relevant personnel to pay attention and avoid fire. The ring sleeve better wraps the annular pipe seam, can collect leaked natural gas without omission, and has a better leakage monitoring effect. Therefore, the suction fire detection alarm device provided by the embodiment of the present invention has the advantages of real-time monitoring and good leakage monitoring effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 A schematic diagram of the external structure of an air-suction fire detection and alarm device provided in an embodiment of the present invention;

[0032] Figure 2A schematic diagram of the internal structure of an air-suction fire detection and alarm device provided in an embodiment of the present invention;

[0033] Figure 3 A schematic diagram of the internal structure of a ring sleeve provided in an embodiment of the present invention;

[0034] Figure 4 A schematic diagram of the three-dimensional structure of a rubber nipple provided in an embodiment of the present invention;

[0035] Figure 5 for Figure 4 Schematic diagram of the cross section of AA;

[0036] Figure 6 This is a schematic diagram of the internal structure of the detection and alarm body provided by an embodiment of the present invention.

[0037] Icon: 1-ring, 101-upper half, 1011-air outlet, 1012-sealing partition, 1013-second one-way valve, 1014-rubber sealing strip, 102-lower half, 103-rubber socket, 1031-socket, 1032-rubber sealing block, 104-fixing part, 2-inlet pipe, 3-detection alarm body, 301-detection sensor, 302-sound and light alarm, 303-detection cavity, 304-first one-way valve, 305-fan, 4-pipeline. DETAILED DESCRIPTION

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0041] In the description of the embodiments of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the invention is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0042] Furthermore, the terms “first”, “second”, etc. are merely used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0043] Furthermore, the use of terms such as "horizontal" and "vertical" does not necessarily imply that the component must be absolutely horizontal or vertical, but rather that it can be slightly tilted. For example, "horizontal" simply refers to a direction that is more horizontal than "vertical," not that the structure or component must be perfectly horizontal, but rather that it can be slightly tilted.

[0044] In the description of the embodiments of the present invention, "a plurality of" means at least two.

[0045] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0046] Example

[0047] Please refer to Figures 1 to 6 , shown is an embodiment of the present invention providing an air-suction type fire detection and alarm device, the specific structure of which is as follows.

[0048] The embodiment of the present application provides an air suction type fire detection alarm device, which includes a ring sleeve 1, an air intake pipe 2 and a detection alarm body 3. The ring sleeve 1 is installed at the pipe seam position of two pipes 4 by glass glue sealing. A gas flow groove is provided on the inner side of the ring sleeve 1. One end of the air intake pipe 2 is connected to the ring sleeve 1, and the other end of the air intake pipe 2 is connected to the detection alarm body 3. The detection alarm body 3 is provided with a detection sensor 301 and an audible and visual alarm 302 that are electrically connected to each other. The ring sleeve 1 includes an upper half 101, a lower half 102 and a rubber joint 103. The upper half 101 is connected to one end of the air intake pipe 2. The rubber joint 103 is provided with a socket 1031 for the upper half 101 and the lower half 102 to be inserted. A rubber sealing block 1032 is provided in the socket 1031. The lower half 102 is provided with a fixing part 104 connected to the upper half 101. Combined Figure 1 and Figure 2 As shown, the air-suction fire detection and alarm device of the present invention mainly consists of three parts: a ring sleeve 1, an air inlet pipe 2 and a detection and alarm body 3. The ring sleeve 1 is used to be fixed at the connection between two pipes 4, that is, the position of the pipe seam, to collect natural gas leaked from the pipe seam; the air inlet pipe 2 is used to transport and transfer gas, and transport the natural gas from the ring sleeve 1 to the detection and alarm body 3; the detection and alarm body 3 is used to detect and analyze the received gas, and issue an alarm after detecting a leak, reminding relevant personnel that there is a hidden fire.

[0049] like Figure 1 As shown, the detection alarm body 3 is composed of a detection sensor 301 and an audible and visual alarm 302 in the prior art. The detection sensor 301 and the audible and visual alarm 302 are electrically connected, and are also provided with a power supply and other structures. This part is well known to those skilled in the art and will not be described in detail here. The detection alarm body 3 is used to detect gas and issue an alarm.

[0050] Combine Figure 1 、 Figure 2 and Figure 3 As shown, the ring sleeve 1 is a circular plastic ring or metal ring, and the inner wall of the ring sleeve 1 is provided with a gas flow groove. At this time, the cross section of the ring sleeve 1 is a "concave" shape. The ring sleeve 1 is composed of three parts: a rubber sleeve 103, an upper half 101 and a lower half 102 of the same size. Figure 4 and Figure 5The concave-shaped rubber nipple 103 has a through-hole 1031, which houses a rubber seal 1032. The upper end of the upper section 101 is inserted through the upper hole 1031, while the lower end of the lower section 102 is inserted through the lower hole 1031. The lower section 102 is provided with a fixing member 104, which is connected to the upper section 101. The ends of the upper and lower sections 101, 102, jointly squeeze the rubber seal 1032, achieving a sealed connection between the upper and lower sections 101, forming the annular sleeve 1. The left end of the intake pipe 2 is connected to the right side of the upper section 101, and the intake pipe 2 is connected to the gas flow groove.

[0051] According to the technical solution of this embodiment, during installation, the upper half 101 and the lower half 102 are aligned with the pipe seam of the pipe 4, the rubber nipple 103 is installed, and the fixing piece 104 is used to fix the connection, so that the ring sleeve 1 is installed at the pipe seam position of the pipe 4. Then, glass glue is applied to the connection between the pipe 4 and the ring sleeve 1 to seal it. During use, if a natural gas leak occurs at the pipe seam, the natural gas enters the gas flow groove, then enters the air inlet pipe 2, and finally enters the detection alarm body 3. The detection sensor 301 of the detection alarm body 3 detects the gas. If there is any abnormality, the sound and light alarm 302 is controlled to sound and light alarm, alerting relevant personnel to avoid fire. The ring sleeve 1 better wraps the annular pipe seam, can collect leaked natural gas without omission, and has a good leakage monitoring effect.

[0052] In some embodiments of the present invention, the fixing member 104 includes a buckle, which is connected to the lower half 102, and the upper half 101 is provided with a hook adapted to the buckle. Figure 3 As shown, the fixing member 104 can be a conventional buckle. Two buckles are respectively installed on the left and right ends of the lower half 102, and two hooks are respectively installed on the left and right ends of the upper half 101, with the hooks and buckles aligned. Through the technical solution of this embodiment, the upper half 101 and the lower half 102 are connected, the buckle loop is hung on the hook, and then pressed down firmly to achieve a relatively tight connection between the upper half 101 and the lower half 102, so that the ends of the upper half 101 and the lower half 102 press against the rubber sealing block 1032, achieving a better installation and sealing.

[0053] In some embodiments of the present invention, the detection alarm body 3 is provided with a detection cavity 303 in communication with the air intake pipe 2, the detection sensor 301 is installed in the detection cavity 303, and a first one-way valve 304 is provided on the top of the detection alarm body 3. Figure 1 and Figure 3As shown, a detection cavity 303 is provided within the detection alarm body 3. The right end of the air intake pipe 2 is connected to the left side wall of the detection alarm body 3, and the air intake pipe 2 and the detection cavity 303 are in communication. A detection sensor 301 is fixedly mounted within the detection cavity 303. A circular hole is provided at the top of the detection alarm body 3, and a first one-way valve 304 is installed in the circular hole. This allows the gas within the detection cavity 303 to be discharged through the first one-way valve 304, preventing outside air from entering through the first one-way valve 304. Through the technical solution of this embodiment, after gas enters the detection cavity 303, the detection sensor 301 analyzes and detects the gas. After filling the detection cavity 303, the gas is discharged to the outside through the first one-way valve 304, preventing outside gas from entering and interfering with gas monitoring.

[0054] In some embodiments of the present invention, the detection alarm body 3 is further provided with a fan 305, and the fan blades of the fan 305 extend into the air inlet pipe 2. Figure 2 and Figure 6 As shown, fan 305 is installed inside detection cavity 303, enabling directional gas flow. Fan 305 has blades that extend into intake pipe 2. Through the technical solution of this embodiment, when fan 305 is powered on, the blades rotate, which then transport the gas in intake pipe 2 from left to right, achieving a good performance.

[0055] In some embodiments of the present invention, the upper half 101 is provided with an air outlet 1011 connected to the air inlet pipe 2, a sealing partition 1012 is provided in the gas flow groove near the air outlet 1011, the gas flow groove is provided with an air inlet near the sealing partition 1012, the air inlet and the air outlet 1011 are respectively located on both sides of the sealing partition 1012, and the air inlet is installed with a second one-way valve 1013. Figure 1 and Figure 3 As shown, the air outlet 1011 is provided on the right side wall of the upper part 101, and the left end of the air inlet pipe 2 is inserted into the air outlet 1011. The sealing baffle 1012 is installed in the gas flow groove, located on the left side of the air outlet 1011, and horizontally 2cm-5cm away from the air outlet 1011. The air inlet is provided at the top of the upper part 101, located on the left side of the sealing baffle 1012, and horizontally 2cm-5cm away from the sealing baffle 1012. The second one-way valve 1013 is installed at the position of the air inlet. The sealing baffle 1012 seals the gas flow groove so that the gas in the gas flow groove will not pass through the sealing baffle 1012. Through the technical solution of this embodiment, after the blower 305 extracts the gas, the gas flows counterclockwise from the second one-way valve 1013, and then enters the air inlet pipe 2 from the air outlet 1011, which is convenient for real-time monitoring in coordination with the blower 305, and the use effect is better.

[0056] In some embodiments of the present invention, a rubber sealing strip 1014 is provided at the bottom of the sealing partition 1012 to abut against the pipe 4. Figure 3 As shown, the rubber sealing strip 1014 is fixed to the bottom of the sealing partition 1012. When installed, the rubber sealing strip 1014 abuts against the outer wall of the pipe 4. Through the technical solution of this embodiment, the rubber sealing strip 1014 makes the sealing effect better and further improves the monitoring effect.

[0057] In some embodiments of the present invention, the detection alarm body 3 is provided with a connector connected to the pipe 4. Figure 1 and Figure 2 As shown, in order to stabilize the detection alarm body 3, the detection alarm body 3 is provided with a connector, which is connected to the pipe 4. Through the technical solution of this embodiment, the detection alarm body 3 is installed more stably and has a longer service life.

[0058] Furthermore, the connecting piece can be a tie rope or a clamp in the prior art. Through the technical solution of this embodiment, the structure is simple and the installation is easier.

[0059] In some embodiments of the present invention, the detection sensor 301 includes a gas sensor. Figure 6 As shown, the detection sensor 301 can be a gas sensor in the prior art. Through the technical solution of this embodiment, the technology is mature, stable and reliable.

[0060] In some embodiments of the present invention, a communication module is further included, and the communication module is electrically connected to the gas sensor. Figure 6 As shown, the communication module can be a conventional H7000E universal embedded wireless data terminal, which is compact, has a flexible interface, and is easy to integrate. The communication module and the gas sensor are connected via a circuit, facilitating transmission of gas sensor data to a remote server. This portion of the technology is conventional, and its structural principles are not described in detail. The technical solution of this embodiment provides greater convenience.

[0061] In summary, an embodiment of the present invention provides an air-suction fire detection and alarm device, which includes a ring sleeve 1, an air intake pipe 2 and a detection and alarm body 3. The ring sleeve 1 is installed at the pipe seam position of the two pipes 4 by sealing with glass glue. A gas flow groove is provided on the inner side of the ring sleeve 1. One end of the air intake pipe 2 is connected to the ring sleeve 1, and the other end of the air intake pipe 2 is connected to the detection and alarm body 3. The detection and alarm body 3 is provided with a detection sensor 301 and an audible and visual alarm 302 that are electrically connected to each other. The ring sleeve 1 includes an upper half 101, a lower half 102 and a rubber sleeve 103. The upper half 101 is connected to one end of the air intake pipe 2. The rubber sleeve 103 is provided with a socket 1031 for inserting the upper half 101 and the lower half 102. A rubber sealing block 1032 is provided in the socket 1031. The lower half 102 is provided with a fixing part 104 connected to the upper half 101, which has the advantages of real-time monitoring and good leakage monitoring effect.

[0062] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An air-suction fire detection and alarm device, characterized in that: The invention comprises a ring sleeve, an air intake pipe and a detection alarm body, wherein the ring sleeve is installed at the pipe seam position of the two pipes by means of glass glue sealing, a gas flow groove is provided on the inner side of the ring sleeve, one end of the air intake pipe is connected to the ring sleeve, and the other end of the air intake pipe is connected to the detection alarm body, the detection alarm body is provided with a detection sensor and an audible and visual alarm that are electrically connected to each other, the ring sleeve comprises an upper half, a lower half and a rubber nipple, the upper half is connected to one end of the air intake pipe, the rubber nipple is provided with a socket for inserting the upper half and the lower half, a rubber sealing block is provided in the socket, and the lower half is provided with a fixing piece connected to the upper half; The upper half is provided with an air outlet connected to the air inlet pipe, a sealing partition is provided in the gas flow groove close to the air outlet, the gas flow groove is provided with an air inlet close to the sealing partition, the air inlet and the air outlet are respectively located on both sides of the sealing partition, and the air inlet is installed with a second one-way valve; the bottom of the sealing partition is provided with a rubber sealing strip that abuts the pipeline.

2. The air-suction fire detection and alarm device according to claim 1, characterized in that: The fixing member includes a buckle connected to the lower half, and the upper half is provided with a hook adapted to the buckle.

3. The air-suction fire detection and alarm device according to claim 1, characterized in that: A detection cavity communicated with the air inlet pipe is provided inside the detection alarm body, the detection sensor is installed in the detection cavity, and a first one-way valve is provided on the top of the detection alarm body.

4. The air-suction fire detection and alarm device according to claim 3, characterized in that: The detection alarm body is also provided with a fan, and the fan blades of the fan extend into the air inlet pipe.

5. The air-suction fire detection and alarm device according to claim 1, characterized in that: The detection alarm body is provided with a connector connected to the pipeline.

6. The air-suction fire detection and alarm device according to claim 5, characterized in that: The connecting piece includes a binding rope or a clamp.

7. The air-suction fire detection and alarm device according to any one of claims 1 to 6, characterized in that: The detection sensor includes a gas sensor.

8. The air-suction fire detection and alarm device according to claim 7, characterized in that: It also includes a communication module, which is electrically connected to the gas sensor.

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