Fire-fighting detector action testing device

Abstract

The utility model discloses a fire-fighting detector action testing device, and relates to the technical field of fire-fighting detectors. The fire-fighting detector action testing device comprises a testing seat with a testing area, the testing seat is provided with a laser aligner and a flame simulation radiation source, the laser aligner is used for emitting visible laser from the testing area to the outside, and the flame simulation radiation source is used for simulating the flame simulation radiation source. The flame simulation radiation source is used for emitting radiation signals simulating flame radiation characteristics outwards from the test area. Compared with the prior art, the flame characteristic signal can be simulated under the condition that open fire is not used, so that comprehensive, safe and reliable testing of the fire-fighting detector is achieved, and the problem that a traditional flame testing method cannot be used in special places such as chemical workshops, oil depots and hospital operating rooms due to the risk of fire disasters or explosions is solved.

Description

Technical Field

[0001] This application relates to the field of fire detector technology, and specifically to a fire detector operation testing device. Background Technology

[0002] Fire detectors are key components of automatic fire alarm systems. Their primary function is to quickly detect fire characteristic signals such as smoke, temperature changes, or flames in the early stages of a fire and issue timely alarms, buying valuable time for evacuation and firefighting. Therefore, the reliability of fire detectors is crucial, directly impacting the timely detection and effective response to fires. Regularly testing fire detectors to ensure they function properly in critical moments is an essential aspect of ensuring fire safety.

[0003] Most existing fire detector operation testing devices use flame testing methods, such as using a lighter or candle as a flame source, placing it at a certain distance directly in front of the detector, and testing the detector's response by keeping the flame still or shaking. While this testing method is simple and direct, it has significant limitations in practical applications.

[0004] In certain specialized buildings and production environments, such as chemical workshops, oil depots, and hospital operating rooms, the control of fire sources is extremely strict, and any open flame could lead to a serious safety accident. Therefore, testing with flames is not permitted in these locations, which limits the comprehensiveness and applicability of existing flame testing methods and restricts the testing capabilities of fire detectors. Utility Model Content

[0005] The purpose of this application is to provide a fire detector operation testing device to solve the problem of the limitations of flame testing in special locations.

[0006] The technical solution adopted by this application to solve its technical problem is:

[0007] A fire detector operation testing device includes a test base with a test area, a laser alignment device and a flame simulation radiation source on the test base, the laser alignment device being used to emit visible laser light outward from the test area, and the flame simulation radiation source being used to emit radiation signals simulating flame radiation characteristics outward from the test area.

[0008] Furthermore, the flame-simulated radiation source includes at least one of an infrared radiation source, an ultraviolet radiation source, and a full-spectrum radiation source.

[0009] Furthermore, the full-spectrum radiation source includes a halogen lamp and a shielding mechanism for intermittently shielding the halogen lamp.

[0010] Furthermore, the blocking mechanism includes a motor and an oscillating fan blade connected to the motor, the motor being used to drive the oscillating fan blade to intermittently block the halogen lamp.

[0011] Furthermore, the test base is provided with a mounting cavity, the laser alignment device and the flame simulation radiation source are disposed in the mounting cavity, the test area is provided with a laser emission hole facing the emission head of the laser alignment device, and the test area is also provided with a transparent window facing the flame simulation radiation source.

[0012] Furthermore, it also includes a power converter and a control switch, wherein the power converter is connected to the laser alignment device and the flame simulation radiation source respectively via the control switch.

[0013] Furthermore, it also includes a base, and the test seat is rotatably connected to the base via a horizontal pivot.

[0014] Furthermore, a locking mechanism is provided between the base and the test seat.

[0015] Furthermore, the locking mechanism includes a locking shaft and a locking nut. The base is provided with an arc-shaped groove centered on the horizontal rotating shaft. One end of the locking shaft is connected to the test seat, and the other end of the locking shaft passes through the arc-shaped groove and is threadedly connected to the locking nut.

[0016] Furthermore, the base includes a horizontally arranged base plate and a pair of side plates fixed on the base plate, the test seat is disposed between the two side plates, and the two side plates are rotatably connected to the test seat through the horizontal rotating shaft.

[0017] The beneficial effects of this application are:

[0018] The fire detector operation testing device provided in this application embodiment is configured with a test base having a test area, and a laser alignment device and a flame simulation radiation source are set on the test base. The flame simulation radiation source can emit radiation signals simulating the radiation characteristics of flames from the test area outward, and the laser alignment device can emit visible lasers towards the fire detector under test to align the test area with the fire detector under test, ensuring that the radiation signals emitted by the flame simulation radiation source from the test area can accurately act on the sensing part of the fire detector under test, thereby realizing the operation test of the fire detector.

[0019] Compared with existing technologies, this application can simulate flame characteristic signals without the use of open flame, thereby achieving comprehensive, safe and reliable testing of fire detectors. It solves the problem that traditional flame testing methods cannot be used in special places such as chemical workshops, oil depots, and hospital operating rooms due to the risk of causing fires or explosions. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a perspective view of the fire detector operation testing device provided in the embodiments of this application;

[0022] Figure 2 This is a front view of the fire detector operation testing device provided in this application embodiment after removing the transparent window;

[0023] Figure 3 yes Figure 2 Top view;

[0024] Figure 4 yes Figure 2 The left view;

[0025] Figure 5 This is a schematic diagram of the shielding mechanism;

[0026] Figure 6 This is an electrical control block diagram of the fire detector operation test device provided in the embodiments of this application.

[0027] Figure label:

[0028] 1-Test socket;

[0029] 11-Test area; 12-Mounting cavity; 13-Laser emission port; 14-Transparent window;

[0030] 141 - Infrared transparent window; 142 - Ultraviolet transparent window; 143 - Halogen lamp transparent window;

[0031] 2-Laser alignment device;

[0032] 3-Flame simulated radiation source;

[0033] 31-Infrared radiation source; 32-Ultraviolet radiation source; 33-Full-spectrum radiation source;

[0034] 331-Halogen lamp; 332-Shielding mechanism; 3321-Motor; 3322-Oscillating fan blade;

[0035] 4-Power converter;

[0036] 5-Control switch;

[0037] 51-Main power switch; 52-Laser aligner switch; 53-Infrared radiation source switch; 54-Ultraviolet radiation source switch; 55-Full-spectrum radiation source intensity knob; 551-Bidirectional thyristor; 56-Full-spectrum radiation source frequency knob; 561-PWM;

[0038] 6-Base;

[0039] 61-Arc-shaped groove; 62-Bottom plate; 63-Side plate;

[0040] 7-Horizontal pivot;

[0041] 8-Locking mechanism;

[0042] 81-Locking shaft; 82-Locking nut;

[0043] 9. Power supply. Detailed Implementation

[0044] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0045] In the description of this application, the terms "upper," "lower," "left," "right," "front," "rear," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Unless otherwise specified, the above-mentioned orientational descriptions can be flexibly set in actual application, provided that the relative positional relationships shown in the accompanying drawings are satisfied.

[0046] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0047] See Figure 1 , Figure 2 , Figure 3 , Figure 4This application provides a fire detector operation testing device, including a test base 1 with a test area 11. The test base 1 is provided with a laser aligner 2 and a flame simulation radiation source 3. The laser aligner 2 is used to emit visible laser light from the test area 11 outwards, and the flame simulation radiation source 3 is used to emit radiation signals simulating the radiation characteristics of flames from the test area 11 outwards.

[0048] The test mount 1 is used to mount other components of the testing device. It can be made of robust and durable materials, such as high-strength metal alloys or high-strength engineering plastics, to ensure the stability and durability of the testing device. For example, the test mount 1 can be made of aluminum alloy to meet the requirements of lightweight, long service life, and high heat dissipation. A test area 11 is provided on one side of the test mount 1, which is used to face the fire detector under test during testing operations.

[0049] A laser alignment device 2 is mounted on the test base 1 and is used to emit a visible laser from the test area 11 for alignment. Visible laser refers to laser light that can be perceived by the human eye, such as laser light with a wavelength between 400-700 nm. During testing, the laser alignment device 2 emits a laser towards the fire detector under test, clearly indicating the location of the fire detector and assisting operators in quickly and accurately aligning the test area 11 of the test base 1 towards and in alignment with the fire detector.

[0050] Since the human eye with normal vision is most sensitive to electromagnetic waves with a wavelength of approximately 555 nm, which falls within the green region of the optical spectrum, the laser aligner 2, for example, employs a 532 nm laser pointer to emit a green laser beam. Of course, in other embodiments, the laser aligner 2 may also employ a laser pointer capable of emitting red, blue, or blue-violet laser beams, as long as they are observable by the human eye; no specific limitation is made here.

[0051] A simulated flame radiation source 3 is installed on the test base 1 to emit radiation signals simulating the radiation characteristics of a flame from the test area 11. These radiation signals are similar to those produced by a real flame in terms of wavelength and intensity, thus simulating the flame radiation characteristics in a real fire scenario without the use of an open flame, providing a realistic test environment for the operation testing of fire detectors. During testing, the simulated flame radiation source 3 can stably emit radiation signals simulating the radiation characteristics of a flame, and also avoids the problem of unstable test results caused by factors such as flame flickering and inconsistent size in traditional flame testing.

[0052] This application provides a method for testing the operation of a fire detector, including the following steps:

[0053] S1. Place the fire detector operation testing device provided in the above embodiment within the monitoring area of ​​the fire detector to be tested. For example, the distance between the fire detector operation testing device and the fire detector to be tested does not exceed 20m, and power is supplied to the laser alignment device 2 and the flame simulation radiation source 3 using power supply 9. Power supply 9 can be mains power or a battery.

[0054] S2. Control the laser alignment device 2 to emit a visible laser outward, and adjust the angle of the test base 1 to align the visible laser with the fire detector to be tested. This operation ensures that the test area 11 is aligned with the fire detector to be tested, and guarantees that the radiation signal emitted by the flame simulation radiation source 3 can be fully covered by the fire detector to be tested, so that the fire detector can receive the strongest trigger signal source.

[0055] S3. Control the simulated flame radiation source 3 to emit a radiation signal simulating the radiation characteristics of a flame to trigger the fire detector under test. When the fire detector emits an alarm signal, it indicates that the fire detector is in good working order; when the fire detector does not emit an alarm signal, it indicates that the fire detector is in abnormal working order and needs to be repaired or replaced.

[0056] The fire detector operation testing device provided in this application embodiment is configured with a test base 1 having a test area 11, and a laser alignment device 2 and a flame simulation radiation source 3 on the test base 1. The flame simulation radiation source 3 can emit radiation signals simulating the radiation characteristics of flames from the test area 11 outwards, and the laser alignment device 2 can emit visible lasers towards the fire detector to be tested, so as to align the test area 11 with the fire detector to be tested, and ensure that the radiation signals emitted by the flame simulation radiation source 3 from the test area 11 outwards can accurately act on the sensing part of the fire detector to be tested, thereby realizing the operation test of the fire detector.

[0057] Compared with existing technologies, this application can simulate flame characteristic signals without the use of open flame, thereby achieving comprehensive, safe and reliable testing of fire detectors. It solves the problem that traditional flame testing methods cannot be used in special places such as chemical workshops, oil depots, and hospital operating rooms due to the risk of causing fires or explosions.

[0058] Fire detectors are key equipment in automatic fire alarm systems. Depending on their working principle, they can include infrared flame detectors, ultraviolet flame detectors, and image-type flame detectors.

[0059] In some embodiments, see Figure 2The flame simulation radiation source 3 includes at least one of an infrared radiation source 31, an ultraviolet radiation source 32, and a full-spectrum radiation source 33. Specifically, the infrared radiation source 31 emits infrared radiation signals that can trigger an alarm action of an infrared flame detector; the ultraviolet radiation source 32 emits ultraviolet radiation signals that can trigger an alarm action of an ultraviolet flame detector; and the full-spectrum radiation source 33 emits full-spectrum radiation signals that can trigger an alarm action of an image-type flame detector.

[0060] The fire detector action testing device provided in this application embodiment allows for the selection of any one or more combinations of infrared radiation source 31, ultraviolet radiation source 32, and full-spectrum radiation source 33 when the flame simulation radiation source 3 includes at least two of these. This flexibility enables the testing device to simulate triggering various types of fire detectors, improving the versatility and practicality of the testing device.

[0061] In some embodiments, the infrared radiation source 31 may be an infrared signal source capable of emitting a wavelength of 3-5 μm and a frequency of 2-20 Hz, used to trigger the alarm action of the infrared flame detector. The ultraviolet radiation source 32 may be an ultraviolet signal source capable of emitting a wavelength of 185-400 nm, used to trigger the alarm action of the ultraviolet flame detector.

[0062] In some embodiments, see Figure 2 The full-spectrum radiation source 33 may include a halogen lamp 331 and a blocking mechanism 332 for intermittently blocking the halogen lamp 331. The halogen lamp 331, as an energy release source, can emit light waves in the 0.35-3.5μm band, covering most spectral frequency reception ranges based on image-based fire detection principles. Due to the high power characteristics of the halogen lamp 331, it cannot perform high-frequency on / off changes. Therefore, the blocking mechanism 332 intermittently blocks the halogen lamp 331 to modulate the radiation source of the halogen lamp 331, thereby simulating flame flickering and triggering the alarm action of the image-type flame detector.

[0063] For example, see Figure 5 The blocking mechanism 332 includes a motor 3321 and a swing fan blade 3322 connected to the motor 3321. The motor 3321 drives the swing fan blade 3322 to intermittently block the halogen lamp 331. The motor 3321 is mounted on the test base 1, and the swing fan blade 3322 is mounted on the output shaft of the motor 3321. After the motor 3321 is started, it drives the swing fan blade 3322 to swing, intermittently blocking the halogen lamp 331. By controlling the swing amplitude and frequency of the swing fan blade 3322, the radiation source of the halogen lamp 331 is modulated to simulate flame flickering, thus triggering the alarm action of the image-type flame detector.

[0064] In some embodiments, see Figure 1 , Figure 2 The test base 1 has a mounting cavity 12, in which the laser alignment device 2 and the flame simulation radiation source 3 are disposed. The test area 11 has a laser emission port 13 facing the emission head of the laser alignment device 2, and a transparent window 14 facing the flame simulation radiation source 3. For example, the transparent window 14 can be made of glass, PVC board, etc.

[0065] By placing the laser alignment device 2 and the simulated flame radiation source 3 within the mounting cavity 12, the laser alignment device 2 and the simulated flame radiation source 3 can be effectively protected from external physical damage, extending their service life and improving the durability of the testing device. The laser emission hole 13 allows the laser emitted by the laser alignment device 2 to be emitted outwards. The transparent window 14 provides an output channel for the radiation signal emitted by the simulated flame radiation source 3, allowing the radiation signal to be output outwards through the transparent window 14 of the testing area 11. This also reduces interference from external environmental factors on the radiation signal, ensuring that the radiation signal can clearly and stably act on the fire detector.

[0066] For example, the test base 1 is a cuboid test box, with an inner cavity forming a mounting cavity 12 and a front sidewall forming a test area 11. A laser aligner 2, an infrared radiation source 31, an ultraviolet radiation source 32, a halogen lamp 331, a motor 3321, and a swing fan blade 3322 are all mounted within the mounting cavity 12. A laser emission aperture 13 penetrates the front sidewall of the test box, and the emitting head of the laser aligner 2 is mounted within the laser emission aperture 13 to allow the laser to be emitted outwards through the laser emission aperture 13. The laser emitted by the laser aligner 2 can be perpendicular to the front sidewall of the test box. A transparent window 14 may be included, through which the radiation signals emitted by the infrared radiation source 31, the ultraviolet radiation source 32, and the halogen lamp 331 are simultaneously output outwards. See also... Figure 1 The transparent window 14 may also include three: an infrared transparent window 141, an ultraviolet transparent window 142, and a halogen lamp transparent window 143. The infrared transparent window 141 faces the infrared radiation source 31, and the radiation signal emitted by the infrared radiation source 31 can be output outward through the infrared transparent window 141. The ultraviolet transparent window 142 faces the ultraviolet radiation source 32, and the radiation signal emitted by the ultraviolet radiation source 32 can be output outward through the ultraviolet transparent window 142. The halogen lamp transparent window 143 faces the halogen lamp 331, and the radiation signal emitted by the halogen lamp 331 can be output outward through the halogen lamp transparent window 143. The oscillating fan blade 3322 is disposed between the halogen lamp 331 and the halogen lamp transparent window 143. The motor 3321 drives the oscillating fan blade 3322 to oscillate back and forth, thereby intermittently blocking the halogen lamp 331 by the oscillating fan blade 3322.

[0067] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 The fire detector action testing device provided in this application embodiment also includes a power converter 4 and a control switch 5. The power converter 4 is connected to the laser alignment device 2 and the flame simulation radiation source 3 respectively through the control switch 5.

[0068] Accordingly, a power converter 4 is provided to centrally manage and distribute power sources 9, such as mains power or batteries, providing suitable operating voltages and currents for different types of flame simulation radiation sources 3 and laser alignment devices 2. A control switch 5 is provided to control the opening and closing of the laser alignment device 2 and the flame simulation radiation source 3.

[0069] For example, see Figure 1 , Figure 3 , Figure 6 The control switch 5 includes a main power switch 51, a laser alignment switch 52, an infrared radiation source switch 53, an ultraviolet radiation source switch 54, a full-spectrum radiation source intensity knob 55, and a full-spectrum radiation source frequency knob 56. The power converter 4 is connected to the power supply 9, which is an AC220V AC power supply. The main power switch 51 controls the power supply of the entire test device. Under the action of the power converter 4, the internal power supply can simultaneously output DC3.3V, DC5V, DC12V, DC24V and AC220V voltages, thereby supplying power to the ultraviolet radiation source 32, the laser alignment device 2, the infrared radiation source 31, the motor 3321 and the halogen lamp 331 respectively.

[0070] Laser alignment switch 52 is used to control the opening and closing of laser alignment 2; infrared radiation source switch 53 is used to control the opening and closing of infrared radiation source 31; ultraviolet radiation source switch 54 is used to control the opening and closing of ultraviolet radiation source 32; full-spectrum radiation source intensity knob 55 is used to control the radiation intensity of halogen lamp 331 by adjusting bidirectional thyristor 551; full-spectrum radiation source frequency knob 56 is used to control motor 3321 to perform reciprocating rotation at a specified step frequency by adjusting the frequency and duty cycle of PWM 561, thereby driving oscillating fan blade 3322 to repeatedly block halogen lamp 331 at a specified frequency to achieve the purpose of simulating flame flickering characteristics.

[0071] During operation, connect the power converter 4 to the power supply 9, press the main power switch 51 to power the entire test device; press the laser alignment switch 52, the laser alignment device 2 emits a visible laser, adjust the angle of the test base 1 to align the visible laser with the fire detector to be tested; this operation can ensure that the radiation source can be fully covered by the fire detector to be tested, and ensure that the fire detector can receive the strongest trigger signal source.

[0072] For the infrared flame detector, pressing the infrared radiation source switch 53 will allow the testing device to emit an infrared signal source with a wavelength of 3-5nm and a frequency of 2-20Hz.

[0073] For the ultraviolet flame detector, press the ultraviolet radiation source switch 54, and the testing device will be able to release an ultraviolet signal source with a wavelength of 185-400nm.

[0074] For infrared-ultraviolet composite flame detectors, the infrared radiation source switch 53 and the ultraviolet radiation source switch 54 can be pressed simultaneously, at which time the testing device can release infrared and ultraviolet signal sources at the same time.

[0075] For image-type flame detectors, by adjusting the full-spectrum radiation source intensity knob 55 and the full-spectrum radiation source frequency knob 56, the testing device can release a full-spectrum signal source with a power of 100-1000W, a wavelength of 0.35-3.5μm, and a scintillation frequency of 2-20Hz.

[0076] In some embodiments, see Figure 1 , Figure 2 , Figure 3 , Figure 4 The fire detector operation testing device provided in this application embodiment also includes a base 6, and a test seat 1 is rotatably connected to the base 6 via a horizontal pivot 7. Exemplarily, the base 6 includes a horizontally arranged base plate 62 and a pair of side plates 63 fixed on the base plate 62. The test seat 1 is disposed between the two side plates 63, and the two side plates 63 are rotatably connected to the test seat 1 via the horizontal pivot 7. During operation, the base 6 can be placed on the base. After the laser alignment device 2 emits a laser, the angle of the test seat 1 is adjusted by controlling the rotation of the test seat 1 around the horizontal pivot 7, so that the laser quickly aligns with the fire detector.

[0077] For example, see Figure 1 , Figure 2 , Figure 3 , Figure 4 A locking mechanism 8 is provided between the base 6 and the test seat 1. Accordingly, by setting the locking mechanism 8, the test seat 1 can be locked after it is adjusted to a specific angle, ensuring that the test seat 1 will not shift its angle due to external force or vibration during the test. This is especially important when long-term testing or testing in complex environments is required, ensuring the accuracy and reliability of the test results.

[0078] See Figure 4The locking mechanism 8 includes a locking shaft 81 and a locking nut 82. The base 6 has an arc-shaped groove 61 centered on a horizontal rotating shaft 7. One end of the locking shaft 81 is connected to the test seat 1, and the other end passes through the arc-shaped groove 61 and is threadedly connected to the locking nut 82. For example, the arc-shaped groove 61 is located on the side plate 63. When the angle of the test seat 1 needs to be adjusted, simply loosen the locking nut 82. After the locking nut 82 separates from the side plate 63 of the base 6, the test seat 1 rotates around the horizontal rotating shaft 7, and the locking shaft 81 moves within the arc-shaped groove 61. After the angle of the test seat 1 is adjusted, simply tighten the locking nut 82 until it abuts against the side plate 63 of the base 6, thus locking the test seat 1 at a specific angle.

[0079] In other embodiments, the locking mechanism 8 may also consist of only a locking bolt, which passes through the side plate 63 of the base 6 and is threadedly connected to the side plate 63, with one end of the locking bolt used to abut against the test seat 1.

[0080] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A fire detector operation testing device, characterized in that, The test fixture (1) includes a test area (11), on which a laser alignment device (2) and a flame simulation radiation source (3) are provided. The laser alignment device (2) is used to emit visible laser light from the test area (11), and the flame simulation radiation source (3) is used to emit radiation signals simulating flame radiation characteristics from the test area (11).

2. The fire detector operation testing device according to claim 1, characterized in that, The flame simulation radiation source (3) includes at least one of an infrared radiation source (31), an ultraviolet radiation source (32), and a full-spectrum radiation source (33).

3. The fire detector operation testing device according to claim 2, characterized in that, The full-spectrum radiation source (33) includes a halogen lamp (331) and a shielding mechanism (332) for intermittently shielding the halogen lamp (331).

4. The fire detector operation testing device according to claim 3, characterized in that, The blocking mechanism (332) includes a motor (3321) and an oscillating fan blade (3322) connected to the motor (3321). The motor (3321) is used to drive the oscillating fan blade (3322) to intermittently block the halogen lamp (331).

5. The fire detector operation testing device according to claim 1, 2, 3 or 4, characterized in that, The test base (1) is provided with a mounting cavity (12), the laser alignment device (2) and the flame simulation radiation source (3) are arranged in the mounting cavity (12), the test area (11) is provided with a laser emission hole (13) facing the emission head of the laser alignment device (2), and the test area (11) is also provided with a transparent window (14) facing the flame simulation radiation source (3).

6. The fire detector operation testing device according to claim 1, 2, 3 or 4, characterized in that, It also includes a power converter (4) and a control switch (5), wherein the power converter (4) is connected to the laser alignment device (2) and the flame simulation radiation source (3) respectively via the control switch (5).

7. The fire detector operation testing device according to claim 1, 2, 3 or 4, characterized in that, It also includes a base (6), and the test seat (1) is rotatably connected to the base (6) via a horizontal pivot (7).

8. The fire detector operation testing device according to claim 7, characterized in that, A locking mechanism (8) is provided between the base (6) and the test seat (1).

9. The fire detector operation testing device according to claim 8, characterized in that, The locking mechanism (8) includes a locking shaft (81) and a locking nut (82). The base (6) is provided with an arc-shaped groove (61) centered on the horizontal rotating shaft (7). One end of the locking shaft (81) is connected to the test seat (1), and the other end of the locking shaft (81) passes through the arc-shaped groove (61) and is threadedly connected to the locking nut (82).

10. The fire detector operation testing device according to claim 7, characterized in that, The base (6) includes a horizontally arranged base plate (62) and a pair of side plates (63) fixed on the base plate (62). The test seat (1) is arranged between the two side plates (63), and the two side plates (63) are rotatably connected to the test seat (1) through the horizontal rotating shaft (7).

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