Smoke-sensing fire alarm

Abstract

The invention relates to the technical field of fire detection, in particular to a smoke-sensing fire alarm which comprises a base, a sleeve and a smoke sensor, the sleeve is located below the base, the base is of a three-section structure, the diameter of the upper section of the base is larger than that of the middle section of the base, and the diameter of the middle section of the base is larger than that of the lower section of the base. A power supply module, a power storage module and a control module are arranged in the base, a supporting frame is arranged at the bottom of the base and fixedly connected with the middle section of the base through a connecting rod, an electric driving rod is arranged in the center below the supporting frame, a driving motor is arranged at the suspended end of the electric driving rod, and a smoke sensor is arranged below the electric driving rod. The smoke sensor is located in the sleeve, and the top of the smoke sensor is fixedly connected with a rotating shaft of the driving motor; through the arrangement of the driving motor, the air inlet direction of the smoke sensor can be adjusted, so that the smoke sensor can face the temperature change position monitored by the infrared temperature sensor, and the smoke monitoring time can be effectively shortened.

Description

Technical Field

[0001] The present invention relates to the technical field of fire detection, and in particular to a smoke fire alarm. Background Art

[0002] Fire alarm devices can detect fire quickly and accurately and sound the alarm before the fire spreads. Fire alarm devices will automatically sound the alarm when they detect a fire without the need for human intervention.

[0003] Existing indoor fire alarm sensors often incorporate devices that accelerate air flow, improving detection effectiveness. However, these devices consume excessive energy. Furthermore, smoke alarms often lack protection, potentially damaging them in high temperatures and resulting in financial losses. Summary of the Invention

[0004] Therefore, the present invention is made to avoid the above problems. The present invention provides a smoke fire alarm. The fire alarm sensor has a strong detection effect and is equipped with a fireproof and high-temperature resistant protective structure, which can effectively avoid the problem of damage and economic losses caused by high temperature. The present invention achieves the above objects through the following technical solutions:

[0005] A smoke fire alarm comprises a base, a sleeve, and a smoke sensor. The sleeve is located below the base. The base is a three-section structure. The diameter of the upper section of the base is larger than the diameter of the middle section, and the diameter of the middle section of the base is larger than the diameter of the lower section. A power supply module, a storage module, and a control module are arranged inside the base. A support frame is provided at the bottom of the base. The support frame is connected and fixed to the middle section of the base through a connecting rod. An electric drive rod is provided at the center below the support frame. A drive motor is provided at the suspended end of the electric drive rod. A smoke sensor is provided below the electric drive rod, and the smoke sensor is located inside the sleeve. The top of the smoke sensor is fixedly connected to the rotating shaft of the drive motor. An exhaust device is provided inside the smoke sensor, and an air intake pipe is provided at the bottom of the smoke sensor. A spring wire is provided inside the sleeve and on one side of the electric drive rod. The upper end of the spring wire is connected to the power supply module in the base, and the lower end of the spring wire is connected to the smoke sensor. An annular mounting seat is provided on the outer periphery of the lower part of the sleeve, and six infrared temperature sensors are provided on the outer periphery of the annular mounting seat.

[0006] Preferably, four raised mounting holes are evenly distributed on the outer circumference of the upper section of the base.

[0007] Preferably, the outer peripheral side of the annular mounting seat is inclined.

[0008] Preferably, the base is in the shape of a boss, and the entire base is made of fireproof and temperature-resistant material.

[0009] Preferably, the sleeve is a tubular structure, the upper end of the sleeve is sleeved on the outer wall of the middle section of the base, the sleeve is made of fireproof and temperature-resistant material as a whole, and the side wall of the sleeve adopts a double-layer hollow structure.

[0010] Preferably, a spring cable is provided inside the electric drive rod, the upper end of the spring cable is connected to the power supply module in the base and the other end is connected to the drive motor.

[0011] Preferably, the air intake pipe is a fan-shaped air intake pipe.

[0012] Preferably, a bottom cover is provided at the opening of the lower end of the sleeve, and the bottom cover is a two-section boss structure, and the diameter of the upper section of the bottom cover is smaller than the diameter of the lower section.

[0013] Preferably, the bottom cover is made entirely of fireproof and heat-resistant material, the top of the bottom cover is connected to the bottom of the air intake pipe, and a high-temperature resistant sealing ring is provided on the outer peripheral side of the upper section of the bottom cover.

[0014] Beneficial effects of the present invention:

[0015] The present invention employs multiple infrared temperature sensors to trigger the smoke sensors, which ensures that the smoke sensors operate for a certain period of time and does not perform excessive ineffective operations. This avoids the problem of existing indoor fire alarm sensors often having internal air circulation acceleration devices. These devices can accelerate air flow and improve detection effectiveness, but these devices can lead to excessive energy consumption.

[0016] The electric drive rod provided in the present invention can retract the smoke sensor into the fireproof and heat-resistant structure formed by the base, sleeve and bottom cover after the smoke sensor completes the fire alarm function, effectively protecting the smoke sensor from damage by the high temperature of the fire, avoiding the problem that the smoke alarm often lacks protection and may be damaged at high temperatures during implementation, resulting in economic losses. At the same time, the setting of the drive motor can adjust the direction of the air inlet of the smoke sensor so that it can face the temperature change monitored by the infrared temperature sensor, which can effectively shorten the smoke monitoring time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a structural diagram of a smoke fire alarm.

[0018] Figure 2 This is a schematic diagram of the internal structure of a smoke fire alarm.

[0019] In the figure: 100, base; 200, sleeve; 300, electric drive rod; 400, smoke sensor; 500, spring wire; 600, bottom cover; 101, mounting hole; 102, support frame; 202, infrared temperature sensor; 301, drive motor; 401, intake pipe; 602, high-temperature resistant sealing ring. DETAILED DESCRIPTION

[0020] Preferred embodiments of the present invention will be described and presented with reference to the accompanying drawings, making them easier for those skilled in the art to implement. However, the present invention may be implemented in various forms and is therefore not limited to the embodiments described below. Furthermore, for a more intuitive description and easier understanding of the present invention, components not particularly relevant to the present invention may be omitted from the accompanying drawings.

[0021] like Figures 1 to 2 As shown, a smoke fire alarm includes: a base 100, a sleeve 200, an electric drive rod 300, a smoke sensor 400, a spring wire 500, and a bottom cover 600;

[0022] like Figure 1 , Figure 2 As shown, the base 100 is in the shape of a boss. The base 100 is made of fireproof and temperature-resistant material as a whole. The base 100 is a three-section structure. The diameter of the upper section of the base 100 is larger than the diameter of the middle section. The diameter of the middle section of the base 100 is larger than the diameter of the lower section. Four raised mounting holes 101 are evenly distributed on the outer circumference of the upper section of the base 100. The base 100 can be fixed to the ceiling through the mounting holes 101. A power supply module, a storage module and a control module are arranged inside the base 100. A support frame 102 is provided at the bottom of the base 100, and the support frame 102 is connected and fixed to the middle section of the base 100 through a connecting rod.

[0023] like Figure 1 , Figure 2 As shown, the sleeve 200 is a tubular structure. The sleeve 200 is made of fireproof and temperature-resistant material. The side wall of the sleeve 200 adopts a double-layer hollow structure. The sleeve 200 is located below the base 100. The upper end of the sleeve 200 is sleeved on the outer wall of the middle section of the base 100. An annular mounting seat is provided on the outer periphery of the lower portion of the sleeve 200. The outer periphery of the annular mounting seat is inclined. Six infrared temperature sensors 202 are evenly distributed on the outer periphery of the annular mounting seat.

[0024] like Figure 2 As shown, the electric drive rod 300 is arranged at the center below the support frame 102 and is located inside the sleeve 200. The suspended end of the electric drive rod 300 is provided with a drive motor 301. A spring cable is provided inside the electric drive rod 300. The upper end of the spring cable is connected to the power supply module in the base 100 and the other end is connected to the drive motor 301.

[0025] like Figure 2 As shown, the smoke sensor 400 is located inside the sleeve 200 and is arranged below the electric drive rod 300. The top of the smoke sensor 400 is fixedly connected to the rotating shaft of the drive motor 301. The smoke sensor 400 is provided with an exhaust device, and a fan-shaped air intake pipe 401 is provided at the bottom of the smoke sensor 400.

[0026] like Figure 2 As shown, the spring wire 500 is located inside the sleeve 200 and is set on one side of the electric drive rod 300. The upper end of the spring wire 500 is connected to the power supply module in the base 100, and the lower end of the spring wire 500 is connected to the smoke sensor 400. The spring wire 500 is used to supply power to the smoke sensor 400.

[0027] like Figure 2 As shown, the bottom cover 600 is located at the lower opening of the sleeve 200. The bottom cover 600 is a two-section boss structure. The diameter of the upper section of the bottom cover 600 is smaller than the diameter of the lower section. The bottom cover 600 is made of fireproof and heat-resistant material as a whole. The top of the bottom cover 600 is connected to the bottom of the air intake pipe 401, and a high-temperature resistant sealing ring 602 is provided on the outer peripheral side of the upper section of the bottom cover 600.

[0028] Working principle of the present invention:

[0029] In a specific implementation, the six infrared temperature sensors 202 installed on the fire alarm cover the entire range of the room. When the temperature within the monitoring range of one of the infrared temperature sensors 202 changes and reaches a set threshold, the control module in the base 100 controls the electric drive rod 300 to move the smoke sensor 400 out of the sleeve 200;

[0030] Immediately, the control module in the base 100 controls the drive motor 301 to rotate the smoke sensor 400, directing the opening of the air intake pipe 401 toward the point where the indoor temperature changes. This shortens the smoke monitoring time. The exhaust device installed in the smoke sensor 400 starts to draw ambient air into the smoke sensor 400 for smoke detection. When fire smoke is detected, the smoke sensor 400 sounds a fire alarm. When the smoke sensor 400 alarm duration reaches the preset duration, and the infrared temperature sensor 202 detects that the ambient temperature is continuously rising, the control module controls the electric drive rod 300 to retract the smoke sensor 400 into the sleeve 200. The bottom cover 600 installed below the air intake pipe 401 simultaneously moves to seal the bottom opening of the sleeve 200. Since the base 100, sleeve 200, and bottom cover 600 are all made of fireproof and heat-resistant materials, the service life of the smoke sensor 400 can be effectively extended.

Claims

1. A smoke fire alarm, comprising: include: A base (100), a sleeve (200), and a smoke sensor (400), wherein the sleeve (200) is located below the base (100), and is characterized in that: the base (100) is a three-section structure, the diameter of the upper section of the base (100) is larger than the diameter of the middle section, the diameter of the middle section of the base (100) is larger than the diameter of the lower section, a power supply module, a power storage module, and a control module are arranged inside the base (100), a support frame (102) is arranged at the bottom of the base (100), the support frame (102) is connected and fixed to the middle section of the base (100) through a connecting rod, an electric drive rod (300) is arranged at the center below the support frame (102), a drive motor (301) is arranged at the suspended end of the electric drive rod (300), and a smoke sensor (400) is arranged below the electric drive rod (300). A fog sensor (400) is provided, and the smoke sensor (400) is located inside the sleeve (200), the top of the smoke sensor (400) is fixedly connected to the rotating shaft of the driving motor (301), an exhaust device is provided inside the smoke sensor (400), an air intake pipe (401) is provided at the lower part of the smoke sensor (400), a spring wire (500) is provided inside the sleeve (200) and located on one side of the electric driving rod (300), the upper end of the spring wire (500) is connected to the power supply module in the base (100), and the lower end of the spring wire (500) is connected to the smoke sensor (400), an annular mounting seat (201) is provided on the outer peripheral side of the lower part of the sleeve (200), and six infrared temperature sensors (202) are provided on the outer peripheral side of the annular mounting seat (201).

2. A smoke fire alarm according to claim 1, characterized in that: Four raised mounting holes (101) are evenly distributed on the outer circumference of the upper section of the base (100).

3. A smoke fire alarm according to claim 1, characterized in that: The outer peripheral side of the annular mounting seat (201) is arranged inclined.

4. A smoke fire alarm according to claim 1, characterized in that: The base (100) is in the shape of a boss, and the base (100) is entirely made of fireproof and temperature-resistant material.

5. A smoke fire alarm according to claim 1, characterized in that: The sleeve (200) is a tubular structure. The upper end of the sleeve (200) is sleeved on the outer wall of the middle section of the base (100). The sleeve (200) is made of fireproof and temperature-resistant material. The side wall of the sleeve (200) adopts a double-layer hollow structure.

6. A smoke fire alarm according to claim 1, characterized in that: A spring cable is arranged inside the electric drive rod (300), the upper end of the spring cable is connected to the power supply module in the base (100) and the other end is connected to the drive motor (301).

7. A smoke fire alarm according to claim 1, characterized in that: The air intake pipe (401) is an air intake pipe (401) with a fan-shaped structure.

8. A smoke fire alarm according to claim 1, characterized in that: A bottom cover (600) is provided at the opening of the lower end of the sleeve (200). The bottom cover (600) is a two-section boss structure, and the diameter of the upper section of the bottom cover (600) is smaller than the diameter of the lower section.

9. A smoke fire alarm according to claim 8, characterized in that: The bottom cover (600) is made of fireproof and heat-resistant material as a whole. The top of the bottom cover (600) is connected to the bottom of the air inlet pipe (401). A high-temperature resistant sealing ring (602) is provided on the outer peripheral side of the upper section of the bottom cover (600).

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