Smoke detector function tester for fire-fighting equipment maintenance

Abstract

The invention discloses a smoke detector function tester for fire-fighting equipment maintenance, and relates to the technical field of smoke detector detection, the tester comprises a mounting base, a medicine tank main body, an atomization tank and a connecting rod, the tester further comprises a partition plate, the partition plate is fixedly arranged on the inner wall of the medicine tank main body, and one side of the partition plate is provided with a driving rod through a bearing. When the driving rod is driven by the driving motor to rotate, the stirring plate on the connecting sleeve rotates in the medicine tank main body at an inclined angle, the layering trend of glycerol sedimentation, propylene glycol suspension and water layer floating is broken through by utilizing the circulation effect generated by the inclined structure, so that the mixed smoke agent forms uniform eddy current in the stirring process, and meanwhile, the stirring effect is improved. A spring is extruded to continuously push a second telescopic rod, so that a scraping plate is tightly attached to the inner wall of the medicine tank and scrapes residual substances on the tank wall in real time when synchronously rotating along with the first telescopic rod, high concentration caused by local glycerin accumulation is avoided, and potential safety hazards of fire early warning are eliminated.

Description

Technical Field

[0001] This invention relates to the field of smoke detector testing technology, specifically to a functional tester for smoke detectors used in the maintenance of fire protection facilities. Background Technology

[0002] In the maintenance of fire protection facilities, smoke detectors are the core components of fire early warning systems. Their sensitivity and reliability directly affect the effectiveness of fire prevention and control. Therefore, it is necessary to conduct performance tests regularly using a functional testing equipment. The core principle of a smoke detector testing equipment is to generate simulated fire smoke by heating a mixture of glycerol, propylene glycol, and water. The detector's response to the smoke (such as alarms or linkage actions) is used to determine whether it is damaged.

[0003] However, in actual maintenance scenarios, current commercially available testing equipment lacks efficient homogenization design in the smoke agent storage and delivery process. In the glycerol-propylene glycol-water mixture, glycerol has a significantly higher density than propylene glycol and water. During static storage or simple stirring, stratification easily occurs, with glycerol settling at the bottom of the container, propylene glycol suspended in the middle layer, and water floating on the surface. This stratification leads to large fluctuations in the concentration of the smoke agent delivered to the atomization chamber. For example, the initial delivery of smoke agent may be dominated by glycerol (too high concentration), while later delivery may be dominated by water and propylene glycol (too low concentration). Meanwhile, the smoke detector cannot accurately detect the concentration of smoke particles. The response threshold for the concentration has strict requirements. Fluctuations in concentration will make the smoke signal received by the detector unstable. This can lead to false alarms due to excessive sensitivity or missed alarms due to insufficient sensitivity. In severe cases, it can cause maintenance personnel to misjudge the detector's damage status, leaving a fire warning safety hazard. Moreover, most traditional test chambers rely solely on heating wires wrapped around the outer wall for heating of the atomization chamber. After the smoke is injected directly into the atomization chamber through the conduit, it accumulates at the bottom of the chamber due to gravity. Only a small amount of smoke at the bottom can contact the high-temperature chamber wall and atomize, while the smoke in the middle and upper parts can only gradually contact the heat source after the smoke at the bottom atomizes, resulting in low atomization efficiency. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a functional tester for smoke detectors used in the maintenance of fire protection facilities, thus solving the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a functional tester for smoke detectors used in the maintenance of fire protection facilities, comprising a mounting base, a main body of a chemical tank, an atomizing tank, and a connecting rod; the tester further comprises: A partition is fixedly installed on the inner wall of the main body of the medicine container, and an active rod is provided on one side of the partition via a bearing. The partition divides the interior of the main body of the medicine container into two parts, the upper part being the storage area for the detection medium. The partition can rotate via the bearing. Multiple connecting sleeves are fixedly installed on the outer surface of the active rod, and multiple stirring plates are fixedly installed on the outer surface of each connecting sleeve. When the multiple connecting sleeves rotate, they will drive the multiple stirring plates that are inclined to them to rotate. The multiple stirring plates stir the medium inside the medicine tank body, so that it is fully mixed together, while preventing sedimentation and affecting the generation of smoke. Multiple first telescopic rods are fixedly mounted on the outer surface of the active rod, and multiple second telescopic rods are movably embedded in the inner walls of the multiple first telescopic rods, and the multiple second telescopic rods can slide on the inner walls of the multiple first telescopic rods respectively.

[0006] According to the above technical solution, a scraper is fixedly installed at one end of each of the multiple second telescopic rods, and a compression spring is fixedly installed at the other end of each of the multiple second telescopic rods. One end of each of the compression springs is fixedly installed on one side of the inner wall of each of the multiple first telescopic rods. A medicine inlet pipe is fixedly installed on the upper side of the mounting base. Each of the multiple stirring plates is a single flat plate structure, which is inclinedly installed on the outer surface of each of the multiple connecting sleeves. In use, by rotating the cap on the medicine inlet pipe, the glycerol-propylene glycol-water mixed smoke agent is poured into the inside of the medicine tank body through the medicine inlet pipe.

[0007] According to the above technical solution, an atomizing chamber is fixedly provided on the inner wall of the atomizing can, and an electric heating wire is wound and installed on the outer surface of the atomizing chamber. When the switch of the electric heating wire is turned on, the electric heating wire is energized to heat the atomizing chamber, and further heats the medium inside the atomizing chamber.

[0008] According to the above technical solution, a rotating rod is provided on one side of the inner wall of the atomizing chamber via a bearing. Multiple push plates are fixedly provided on the outer surface of the rotating rod. When the rotating rod rotates, it drives the multiple push plates and anti-slip washers to rotate. The multiple push plates push the medium inside the atomizing chamber, so that the smoke medium can fully contact the inner wall of the atomizing chamber, thereby improving the heating efficiency of the medium.

[0009] According to the above technical solution, a smoke collection hood is fixedly installed on one side of the atomizing chamber, and a smoke outlet pipe is installed on the side of the smoke collection hood away from the atomizing chamber. An anti-slip washer is fixedly sleeved on the outer surface of the rotating rod, and a fan blade is fixedly installed on the outer surface of the anti-slip washer. The fan blade is fixedly connected to the rotating rod through the anti-slip washer to prevent it from loosening when the fan blade rotates. At this time, when the fan blade rotates clockwise around the axis of the rotating rod, it generates a swinging effect on the surrounding air, so that the air in the inner area of ​​the fan blade is quickly carried away, and the smoke generated inside the atomizing chamber is drawn into the smoke outlet pipe.

[0010] According to the above technical solution, a first conduit is installed on the outer surface of the main body of the medicine canister near the lower side, a micro water pump is installed at one end of the first conduit, a second conduit is installed at the water outlet end of the micro water pump, and one end of the second conduit is installed on the outer surface of the atomizing chamber near the upper side.

[0011] According to the above technical solution, a drive motor is fixedly installed on one side of the inner wall of the medicine tank body. The output shaft of the drive motor is fixedly set to one end of the active rod through a coupling. A first synchronous wheel is fixedly sleeved on the outer surface of the active rod. When the external power switch of the drive motor is turned on, the output shaft of the drive motor drives the active rod to rotate.

[0012] According to the above technical solution, a synchronous belt is provided on the outer surface of the first synchronous pulley, and a second synchronous pulley is provided on the inner wall of the synchronous belt. A secondary moving rod is fixedly embedded on the inner wall of the second synchronous pulley. One end of the secondary moving rod is fixedly provided on one end of the rotating rod. A protective box is fixedly provided on the opposite side of the medicine canister body and the atomizing canister. When the active rod rotates, it simultaneously drives the first synchronous pulley to rotate, and further drives the second synchronous pulley to rotate through the synchronous belt, thereby causing the secondary moving rod to drive the rotating rod to rotate. The protective box has the function of protecting its internal structure and preventing it from being exposed and damaged.

[0013] According to the above technical solution, a hand handle is threaded onto the outer surface of the connecting rod near the lower side, and anti-slip stripes are formed on the outer surface of the hand handle. The outer surface of the connecting rod near the upper side is threaded into the inner wall of the mounting base. The anti-slip stripes on the hand handle make it easy to hold the entire tester, so that the smoke outlet pipe is aligned with the detector. The hand handle is fixed to the lower end of the connecting rod by rotating the hand handle, and then the mounting base is rotated to fix the mounting base and the connecting rod together.

[0014] According to the above technical solution, the main body of the medicine canister is fixedly disposed on the end of the mounting base away from the connecting rod, and the atomizing canister is fixedly disposed on the outer surface of the main body of the medicine canister.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this invention, when the drive motor drives the active rod to rotate, the stirring plate on the connecting sleeve rotates at an inclined angle inside the main body of the medicine tank. The circulation effect generated by the inclined structure breaks the stratification trend of glycerin settling, propylene glycol suspension, and water layer floating, so that the mixed fumigant forms a uniform vortex during the stirring process. At the same time, the compression spring continuously pushes the second telescopic rod, so that the scraper is in close contact with the inner wall of the medicine tank. When it rotates synchronously with the first telescopic rod, it scrapes off the residual substances on the tank wall in real time, avoiding local glycerin accumulation that leads to high concentration and eliminating fire early warning safety hazards. 2. In this invention, when the active rod rotates, it drives the second synchronous wheel and the secondary active rod to rotate through the first synchronous wheel and the synchronous belt, thereby causing the rotating rod in the atomization chamber to rotate synchronously. The push plate on the rotating rod rotates with it, pushing the smoke agent injected into the atomization chamber towards the high-temperature chamber wall where the heating wire is wound, thereby increasing the contact area between the smoke agent and the high-temperature chamber wall, improving the atomization efficiency, and further improving the efficiency of maintenance operations. 3. In this invention, four functions can be achieved simultaneously: stirring of medicine tank, cleaning of tank wall, dispersion of smoke agent in atomization chamber, and smoke exhaust by fan blades, with only one power source, without the need for an additional independent motor, which is energy-saving and environmentally friendly. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a disassembly diagram of the various parts in this invention; Figure 3 This is a cross-sectional view of the atomizing can in this invention. Figure 4 This is a cross-sectional structural diagram of the main body of the medicine jar of the present invention; Figure 5 This is a schematic diagram of the partition connection structure in this invention; Figure 6 This is a cross-sectional view of the atomizing chamber in this invention; Figure 7 For the present invention Figure 4 Enlarged view of point A in the middle; Figure 8 For the present invention Figure 4 Enlarged view at point B in the middle; Figure 9 For the present invention Figure 6 Enlarged view of point C.

[0017] The meanings of the labels in the diagram are as follows: 1. Mounting base; 2. Medicine canister body; 201. Partition plate; 202. Active rod; 203. Connecting sleeve; 204. Stirring plate; 205. First telescopic rod; 206. Second telescopic rod; 207. Scraper; 208. Compression spring; 209. Medicine inlet pipe; 3. Atomizing canister; 301. Atomizing chamber; 302. Rotating rod; 303. Push plate; 304. Smoke hood; 305. Smoke outlet pipe; 306. Anti-slip washer; 307. Fan blade; 308. Heating wire; 309. First conduit; 310. Miniature water pump; 311. Second conduit; 4. Connecting rod; 401. Handheld rod; 402. Drive motor; 403. First synchronous pulley; 404. Synchronous belt; 405. Second synchronous pulley; 406. Protective box; 407. Secondary moving rod. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] like Figures 1 to 9 As shown, this invention provides a functional tester for smoke detectors used in the maintenance of fire protection facilities. The tester includes a mounting base 1, a main body 2 of a medicine tank, an atomizing tank 3, and a connecting rod 4. The tester also includes: a partition 201 fixedly disposed on the inner wall of the main body 2 of the medicine tank, with a drive rod 202 mounted on one side of the partition 201 via a bearing; multiple connecting sleeves 203 fixedly disposed on the outer surface of the drive rod 202, with multiple stirring plates 204 fixedly disposed on the outer surface of each connecting sleeve 203; and multiple first telescopic rods 205 fixedly disposed on the drive rod 202. On the outer surface of the base 1, a second telescopic rod 206 is movably embedded in the inner wall of the first telescopic rod 205. A scraper 207 is fixedly installed at one end of the second telescopic rod 206, and a compression spring 208 is fixedly installed at the other end of the second telescopic rod 206. One end of the compression spring 208 is fixedly installed on one side of the inner wall of the first telescopic rod 205. A medicine inlet pipe 209 is fixedly installed on the upper side of the mounting base 1. The multiple stirring plates 204 are all single flat plate structures and are respectively inclined on the outer surface of the multiple connecting sleeves 203.

[0020] In use, by rotating the cap on the inlet pipe 209, a glycerin-propylene glycol-water mixed fumigant is poured into the inside of the main body 2 of the medicine container through the inlet pipe 209. The partition 201 divides the inside of the main body 2 of the medicine container into two parts. The upper part is the storage area for the detection medium. At this time, the rotation of the drive rod 202 drives the multiple connecting sleeves 203 and the multiple first telescopic rods 205 to rotate. When the multiple connecting sleeves 203 rotate, they will drive the multiple stirring plates 204 that are inclined to them to rotate. The multiple stirring plates 204 agitate the medium inside the main body 2 of the medicine container, making it full. To prevent sedimentation and thus affect smoke generation, multiple compression springs 208 are used. These springs compress multiple second telescopic rods 206, causing one end of each rod to press against multiple scrapers 207. This ensures the scrapers 207 are tightly attached to the inner wall of the medicine container body 2. When the first telescopic rods 205 rotate, they drive the scrapers 207 to rotate as well. The rotating scrapers 207 scrape the inner wall of the medicine container body 2, preventing the medium from adhering to it.

[0021] Please see Figures 1 to 9 In one embodiment, an atomizing chamber 301 is fixedly provided on the inner wall of the atomizing can 3, and an electric heating wire 308 is wound and installed on the outer surface of the atomizing chamber 301. When the switch of the electric heating wire 308 is turned on, the electric heating wire 308 is energized to heat the atomizing chamber 301, and further heats the medium inside the atomizing chamber 301.

[0022] Please see Figures 1 to 9In one embodiment, a rotating rod 302 is provided on one side of the inner wall of the atomizing chamber 301 via a bearing. Multiple push plates 303 are fixedly provided on the outer surface of the rotating rod 302. When the rotating rod 302 rotates, it drives the multiple push plates 303 and the anti-slip washer 306 to rotate. The multiple push plates 303 push the medium inside the atomizing chamber 301, so that the smoke medium can fully contact the inner wall of the atomizing chamber 301, thereby improving the heating efficiency of the medium.

[0023] Please see Figures 1 to 9 In one embodiment, a smoke collection hood 304 is fixedly installed on one side of the atomizing chamber 301. A smoke outlet pipe 305 is installed on the side of the smoke collection hood 304 away from the atomizing chamber 301. An anti-slip washer 306 is fixedly sleeved on the outer surface of the rotating rod 302. A fan blade 307 is fixedly installed on the outer surface of the anti-slip washer 306. The fan blade 307 is fixedly connected to the rotating rod 302 through the anti-slip washer 306 to prevent it from loosening when the fan blade 307 rotates. When the fan blade 307 rotates clockwise around the axis of the rotating rod 302, it generates a swinging effect on the surrounding air, so that the air in the inner area of ​​the fan blade 307 is quickly carried away, and the smoke generated inside the atomizing chamber 301 is drawn into and discharged into the smoke outlet pipe 305.

[0024] Please see Figures 1 to 9 In one embodiment, a first conduit 309 is installed on the outer surface of the medicine canister body 2 near the lower side. A micro water pump 310 is installed at one end of the first conduit 309. A second conduit 311 is installed at the water outlet end of the micro water pump 310. One end of the second conduit 311 is installed on the outer surface of the atomizing chamber 301 near the upper side. When the external power switch of the micro water pump 310 is turned on, the water inlet end of the micro water pump 310 generates suction, which draws the mixed smoke medium inside the medicine canister body 2 into the first conduit 309 and discharges it into the interior of the second conduit 311.

[0025] Please see Figures 1 to 9 In one embodiment, a drive motor 402 is fixedly installed on one side of the inner wall of the medicine container body 2. The output shaft of the drive motor 402 is fixedly mounted on one end of the drive rod 202 through a coupling. A first synchronous wheel 403 is fixedly sleeved on the outer surface of the drive rod 202. When the external power switch of the drive motor 402 is turned on, the output shaft of the drive motor 402 drives the drive rod 202 to rotate.

[0026] Please see Figures 1 to 9In one embodiment, a timing belt 404 is provided on the outer surface of the first timing pulley 403, and a second timing pulley 405 is provided on the inner wall of the timing belt 404. A secondary moving rod 407 is fixedly embedded on the inner wall of the second timing pulley 405. One end of the secondary moving rod 407 is fixedly provided on one end of the rotating rod 302. A protective box 406 is fixedly provided on the opposite side of the medicine canister body 2 and the atomizing canister 3. When the driving rod 202 rotates, it simultaneously drives the first timing pulley 403 to rotate, and further drives the second timing pulley 405 to rotate through the timing belt 404, thereby causing the secondary moving rod 407 to drive the rotating rod 302 to rotate. The protective box 406 has the function of protecting its internal structure and preventing it from being exposed and damaged.

[0027] Please see Figures 1 to 9 In one embodiment, a handheld rod 401 is threaded onto the outer surface of the connecting rod 4 near its lower side. Anti-slip stripes are formed on the outer surface of the handheld rod 401. The outer surface of the connecting rod 4 near its upper side is threaded into the inner wall of the mounting base 1. The anti-slip stripes on the handheld rod 401 make it easy to hold the entire tester, so that the smoke pipe 305 is aligned with the detector. The handheld rod 401 is fixed to the lower end of the connecting rod 4 by rotating the handheld rod 401. Then, the mounting base 1 is rotated to fix the mounting base 1 and the connecting rod 4 together.

[0028] Please see Figures 1 to 9 In one embodiment, the medicine canister body 2 is fixedly disposed on the end of the mounting base 1 away from the connecting rod 4, and the atomizing canister 3 is fixedly disposed on the outer surface of the medicine canister body 2.

[0029] The working principle and usage process of this invention are as follows: When detecting a smoke detector, by rotating the cap on the inlet tube 209, a glycerol-propylene glycol-water mixed smoke agent is poured into the body 2 of the medicine container through the inlet tube 209. This is a special medium for the smoke detector. At this time, the hand handle 401 is fixed to the lower end of the connecting rod 4 by rotating the hand handle 401. Then, the mounting base 1 is rotated to fix the mounting base 1 and the connecting rod 4. When in use, the handle is rotated in the opposite direction to disassemble. When in use, the mounting base 1, the connecting rod 4 and the hand handle 401 are fixedly connected so that the smoke outlet tube 305 can contact the smoke detector. The anti-slip stripes on the handle 401 make it easy to hold the entire test apparatus, aligning the smoke outlet 305 with the detector. Then, the external power switch of the drive motor 402 is turned on, causing the output shaft of the drive motor 402 to rotate the active rod 202. The partition 201 divides the interior of the main body 2 of the medicine container into two parts; the upper part is the storage area for the detection medium. The rotation of the active rod 202 drives multiple connecting sleeves 203 and multiple first telescopic rods 205 to rotate. As the connecting sleeves 203 rotate, they drive multiple inclined stirring plates 204 to rotate. The inclined stirring plates 204 agitate the medium inside the main body 2 of the medicine container, utilizing the circulation effect generated by the inclined structure to break up the glycerin... The stratification trend of sedimentation, propylene glycol suspension, and water layer floating prevents precipitation and affects smoke generation. Multiple compression springs 208 have elasticity, and the elasticity of multiple compression springs 208 respectively compresses multiple second telescopic rods 206, which in turn compresses multiple scrapers 207 at one end, so that multiple scrapers 207 are tightly attached to the inner wall of the medicine tank body 2. When multiple first telescopic rods 205 rotate, they will drive multiple scrapers 207 to rotate. The rotating multiple scrapers 207 scrape the inner wall of the medicine tank body 2, preventing the medium from sticking to the inner wall of the medicine tank body 2. Thus, when using the tester, the smoke medium is fully mixed together, and at the same time, precipitation can be prevented. After the medium is fully mixed, the smoke outlet pipe 305 contacts the smoke detector. At this time, the external power switch of the micro water pump 310 is turned on, and the water inlet of the micro water pump 310 generates suction, drawing the mixed smoke medium inside the medicine canister body 2 into the first conduit 309 and into the second conduit 311, and further into the atomizing chamber 301. Simultaneously, the switch of the heating wire 308 is turned on, and the heating wire 308 is energized to heat the atomizing chamber 301, further heating the medium inside the atomizing chamber 301. When the active rod 202 rotates, it simultaneously drives the first synchronous pulley 403 to rotate, which in turn drives the second synchronous pulley 405 to rotate via the synchronous belt 404. This causes the secondary rod 407 to drive the rotating rod 302 to rotate. The protective box 406 protects its internal structure, preventing it from being exposed to the outside and causing damage. When the rotating rod 302 rotates, it drives multiple push plates 303 and anti-slip washers 306 to rotate. The multiple push plates 303 push the medium inside the atomizing chamber 301, so that the smoke medium can fully contact the inner wall of the atomizing chamber 301, improving the heating efficiency of the medium. The fan blade 307 is fixedly connected to the rotating rod 302 through the anti-slip washers 306 to prevent it from loosening when the fan blade 307 rotates. At this time, when the fan blade 307 rotates clockwise around the axis of the rotating rod 302, it generates a swinging effect on the surrounding air, so that the air in the inner area of ​​the fan blade 307 is quickly carried away, and the smoke generated inside the atomizing chamber 301 is sucked into the smoke outlet pipe 305 and further discharged to the smoke detector. By observing whether the smoke detector makes a sound or sprays water, it can be determined whether the smoke detector is damaged, thus completing the detection of the smoke detector.

[0030] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A functional tester for smoke detectors used in the maintenance of fire protection facilities, comprising a mounting base (1), a main body of a medicine tank (2), an atomizing tank (3), and a connecting rod (4), characterized in that, The testing apparatus also includes: A partition (201) is fixedly installed on the inner wall of the main body (2) of the medicine container, and an active rod (202) is provided on one side of the partition (201) through a bearing. Multiple connecting sleeves (203) are fixedly disposed on the outer surface of the active rod (202), and multiple stirring plates (204) are fixedly disposed on the outer surface of each of the multiple connecting sleeves (203). Multiple first telescopic rods (205) are fixedly disposed on the outer surface of the active rod (202), and a second telescopic rod (206) is movably embedded in the inner wall of each of the multiple first telescopic rods (205).

2. The functional tester for smoke detectors used in fire protection facility maintenance according to claim 1, characterized in that: Each of the multiple second telescopic rods (206) has a scraper (207) fixedly installed at one end, and a compression spring (208) fixedly installed at the other end. One end of each compression spring (208) is fixedly installed on one side of the inner wall of each of the multiple first telescopic rods (205). A medicine inlet pipe (209) is fixedly installed on the upper side of the mounting base (1). Each of the multiple stirring plates (204) is a single flat plate structure, which is inclinedly installed on the outer surface of each of the multiple connecting sleeves (203).

3. The functional tester for smoke detectors used in fire protection facility maintenance according to claim 1, characterized in that: An atomizing chamber (301) is fixedly provided on the inner wall of the atomizing can (3), and an electric heating wire (308) is wound and installed on the outer surface of the atomizing chamber (301).

4. The functional tester for smoke detectors used in fire protection facility maintenance according to claim 3, characterized in that: A rotating rod (302) is provided on one side of the inner wall of the atomizing chamber (301) via a bearing, and multiple push plates (303) are fixedly provided on the outer surface of the rotating rod (302).

5. The functional tester for smoke detectors used in fire protection facility maintenance according to claim 4, characterized in that: A smoke collection hood (304) is fixedly installed on one side of the atomizing chamber (301). A smoke outlet pipe (305) is installed on the side of the smoke collection hood (304) away from the atomizing chamber (301). An anti-slip washer (306) is fixedly sleeved on the outer surface of the rotating rod (302). A fan blade (307) is fixedly installed on the outer surface of the anti-slip washer (306).

6. The functional tester for smoke detectors used in fire protection facility maintenance according to claim 5, characterized in that: A first conduit (309) is installed on the outer surface of the main body (2) near the lower side. A micro water pump (310) is installed at one end of the first conduit (309). A second conduit (311) is installed at the water outlet end of the micro water pump (310). One end of the second conduit (311) is installed on the outer surface of the atomizing chamber (301) near the upper side.

7. The functional tester for smoke detectors used in fire protection facility maintenance according to claim 5, characterized in that: A drive motor (402) is fixedly installed on one side of the inner wall of the medicine container body (2). The output shaft of the drive motor (402) is fixedly set at one end of the active rod (202) through a coupling. A first synchronous wheel (403) is fixedly sleeved on the outer surface of the active rod (202).

8. The functional tester for smoke detectors used in fire protection facility maintenance according to claim 7, characterized in that: A timing belt (404) is provided on the outer surface of the first timing pulley (403), and a second timing pulley (405) is provided on the inner wall of the timing belt (404). A secondary moving rod (407) is fixedly embedded on the inner wall of the second timing pulley (405). One end of the secondary moving rod (407) is fixedly provided on one end of the rotating rod (302). A protective box (406) is fixedly provided on the opposite side of the medicine canister body (2) and the atomizing canister (3).

9. The functional tester for smoke detectors used in fire protection facility maintenance according to claim 1, characterized in that: The connecting rod (4) has a hand handle (401) threaded on its outer surface near the lower side. The hand handle (401) has anti-slip stripes on its outer surface. The connecting rod (4) has a threaded outer surface near the upper side embedded in the inner wall of the mounting base (1).

10. The functional tester for smoke detectors used in fire protection facility maintenance according to claim 9, characterized in that: The main body (2) of the medicine canister is fixedly disposed on the end of the mounting base (1) away from the connecting rod (4), and the atomizing canister (3) is fixedly disposed on the outer surface of the main body (2).

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