Fireproof door detection device for fire-fighting equipment detection

Abstract

The utility model relates to fire door detection device technical field, concretely relates to a fire door detection device for fire fighting equipment detection, include: smoke module: for manufacturing and recycling smoke, detection end: for using smoke to carry out leakproofness detection to fire door, conveying pipeline: intercommunication smoke module and detection end, conveying pipeline includes recovery pipe, conveying pipe and handheld pole, recovery pipe and conveying pipe are fixed on handheld pole, realize very low smoke leakage detection through the dynamic sticking fire door irregular surface of double sleeve type self -adaptation sealing structure, the forced gathering smoke of inner layer sleeve improves detection accuracy, the real -time absorption of escaping smoke of outer layer sleeve combines negative pressure recovery channel, cooperate closed loop purification system and eliminate environmental pollution thoroughly, single hand holds integrated device synchronous completion and completes the whole process of crimping sealing, smoke release and recovery, break through the technical bottleneck of traditional detection low efficiency, complicated operation and serious pollution.

Description

Technical Field

[0001] This utility model relates to the technical field of fire door testing devices, specifically a fire door testing device for testing fire protection facilities. Background Technology

[0002] Fire door testing devices are specifically designed to test sealing performance. They actively generate tracer smoke (usually harmless aerosol or special detection smoke) and release it stably to one side of the fire door through a specific device. The device monitors and compares the difference in smoke concentration or air pressure on both sides of the door gap to accurately quantify and evaluate the smoke blocking performance and gap sealing integrity of the fire door under simulated fire conditions. If excessive smoke leakage or insufficient pressure difference is detected at the door gap, the seal is deemed to have failed.

[0003] Fire door testing devices can provide accurate data for maintenance, ensuring that fire doors can effectively block the spread of deadly smoke during a fire and meet the regulatory requirements for fire compartmentation in buildings. However, they still have certain problems: 1) Traditional equipment that uses smoke to test the sealing performance of fire doors lacks a smoke recovery structure, leading to smoke emission and pollution; 2) For equipment that uses smoke to test the sealing performance of fire doors, the uneven surface of the fire door causes excessive smoke emission, affecting testing efficiency and quality; 3) The equipment is cumbersome to operate. Therefore, in view of the above situation, there is an urgent need to develop a fire door testing device for testing fire protection facilities to overcome the shortcomings in current practical applications and meet current needs. Utility Model Content

[0004] The purpose of this utility model is to provide a fire door testing device for testing fire protection facilities, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fire door testing device for fire protection facility testing, comprising:

[0006] Smoke module: Used for generating and recycling smoke;

[0007] Testing end: Used to test the sealing performance of fire doors using smoke;

[0008] Delivery pipeline: connects the smoke module and the detection end;

[0009] The delivery pipeline includes a recovery pipe, a delivery pipe, and a handheld rod, with the recovery pipe and delivery pipe fixed to the handheld rod;

[0010] The delivery pipe connects the exhaust port of the smoke module to the input port of the detection end, and the recovery pipe connects the return port of the detection end to the recovery port of the smoke module.

[0011] Specifically, when smoke is delivered to the detection end through the delivery pipe for sealing testing, the escaping smoke is drawn back to the smoke module in real time using the recovery pipe. After being purified by a centrifugal separator and a filter, a closed-loop circulation is formed, preventing smoke diffusion and pollution. The handheld lever integrates a dual-pipe design, allowing the operator to control the release and recovery of smoke with one hand through the adaptive sealing structure of shielding component a and shielding component b, significantly improving detection efficiency and reducing operational intensity.

[0012] Preferably, the smoke module includes:

[0013] Housing: A side cover is detachably installed on one side, a top cover is detachably installed on the top, and an exhaust port a is provided on the outer wall;

[0014] Smoke generating mechanism: located inside the housing, including a smoke generator, centrifugal fan a and a smoke exhaust pipe; the smoke generator is fixed to the bottom of the housing, and an air inlet valve is installed on its side wall, extending to the outer wall of the housing; the centrifugal fan a is installed at the smoke exhaust port of the smoke generator, and the smoke exhaust pipe is connected to the air outlet of the centrifugal fan a and extends to the outside of the housing;

[0015] It should be noted that the smoke generator is a commercial-grade aerosol generator, which converts liquid smoke agent into suspended particles with a particle size of ≤5μm through an electrothermal atomization mechanism; after the air supply flow rate of the smoke agent is regulated by the air inlet valve, it is pressurized and delivered to the smoke exhaust pipe by centrifugal fan a, and the smoke generation rate is controlled by the button on the hand lever.

[0016] Smoke recovery mechanism: includes a centrifugal separator, centrifugal fan b, and filter screens; the centrifugal separator is fixed to the inner wall of the housing, and the housing has an independent filter chamber. The exhaust end of the centrifugal separator extends into the filter chamber. The centrifugal fan b is located in the filter chamber and is connected to the exhaust end of the centrifugal separator. Multiple filter screens can be detachably installed in the filter chamber. The air inlet end of the centrifugal separator is connected to an air inlet pipe that runs through the outside of the housing. A collection tank can be detachably installed at the bottom of the centrifugal separator.

[0017] Specifically, the detachable side and top covers facilitate maintenance of core components such as the smoke generator and centrifugal separator; the air inlet valve ensures controllable smoke generation; centrifugal fan a pressurizes and delivers detected smoke through the exhaust pipe; after the exhaust pipe draws in the escaping smoke, the centrifugal separator performs primary impurity separation, solid particles fall into the collection tank, and centrifugal fan b drives the gas into the filter chamber for deep purification through multiple layers of filters. Finally, clean air is discharged through exhaust port a, achieving efficient recycling and purification and avoiding the accumulation of toxic residues.

[0018] Preferably, the detection end includes:

[0019] Main pipe: The output end is equipped with a top plate, and the input end is connected to the conveying pipe;

[0020] Mounting plate: Fitted in the middle of the main pipe, including spiral tube and connecting ring; the connecting ring is fitted on the main pipe, and multiple spiral tubes radially connect the connecting ring and the mounting plate to form a connection. The mounting plate is provided with mounting groove a and mounting groove b.

[0021] Shielding component a and shielding component b: are installed through mounting slot a and mounting slot b on the mounting plate, respectively; the mounting plate has several vent holes b, and the end of the spiral tube is embedded in the vent holes b;

[0022] Both shielding component a and shielding component b are hollow columnar structures. The outer diameter of shielding component a is larger than that of shielding component b and the length is longer than that of shielding component b. The two are coaxially nested to form a double sleeve structure.

[0023] The connecting loop is connected to the intake pipe via the recovery pipe.

[0024] Specifically, the detection smoke conveyed by the main pipe through the delivery pipe is released directionally from the top plate. The inner cavity of the shielding component b encloses the main pipe to form a smoke-gathering channel, significantly improving the efficiency of door gap penetration detection. In the double-sleeve structure formed by the nested shielding components a and b, the outer shielding component a tightly fits the irregular surface of the fire door through the adaptive expansion and contraction of the shielding sheet, blocking the smoke from escaping. The cavity between the two sleeves is connected to the spiral pipe through the exhaust port b, and the smoke flows to the recovery pipe through the connecting ring, which draws in the dispersed smoke in real time. The mounting slot a / mounting slot b enables quick disassembly and maintenance of the double shielding components.

[0025] Preferably, both shielding component a and shielding component b include:

[0026] Annular mounting base: Multiple sliding grooves and limiting grooves communicating with the sliding grooves are opened on the outer wall;

[0027] Multiple shielding plates: They are arranged in a ring around the axis of the annular mounting base. The two sides of the shielding plate that contact the adjacent shielding plate are respectively provided with convex and concave surfaces. The adjacent shielding plates are tightly slidably attached to each other through the convex and concave surfaces.

[0028] A slider is fixed at the end of the shielding sheet, and a limiting shaft and a spring sleeved on the limiting shaft are installed on the slider; the slider is slidably disposed in the slide groove, and the limiting shaft is slidably disposed in the limiting groove.

[0029] Specifically, the sliding groove and the limiting groove on the annular mounting base form a sliding track, allowing multiple shielding sheets to move flexibly along the sliding groove via the end slider ("displacement constraint: the limiting shaft guides the sliding within the limiting groove"); the spring sleeved on the limiting shaft provides adaptive rebound force, pushing the shielding sheets to tightly fit the irregular surface of the fire door; adjacent shielding sheets maintain a seamless annular sealing surface during expansion and contraction through the meshing sliding contact of the convex and concave surfaces ("convex surface embedded in concave surface"), preventing the lateral escape of smoke.

[0030] Preferably, the inner cavity of the shielding component b covers the main pipe output end for focusing and detecting smoke;

[0031] The cavity between shielding component a and shielding component b is connected to the recovery pipe via a spiral tube and a connecting ring, and is used to absorb the emitted smoke.

[0032] Specifically, the inner cavity of shielding component b covers the main output end, forming a sealed smoke collection channel, which forces the detected smoke to penetrate the door gap in a directional manner, significantly improving the detection accuracy; the cavity between shielding component a and shielding component b flows to the connecting ring through radially distributed spiral tubes, and finally the escaping smoke is efficiently sucked up by the recovery tube, simultaneously realizing the dual anti-escape mechanism of physical isolation and negative pressure recovery of the double sleeve structure.

[0033] Preferably, the handheld lever integrates the recycling pipe and the conveying pipe, and the operator controls the detection end to press against the fire door seam through the handheld lever.

[0034] Specifically, through the dual-channel design integrating the recovery pipe and the delivery pipe, the operator can simultaneously control the detection end to press against the fire door seam, trigger smoke release and recovery with one hand, completely eliminating the operational redundancy of switching between multiple devices in traditional detection, significantly improving detection efficiency and reducing manual fatigue.

[0035] Compared with the prior art, this utility model provides a fire door testing device for fire protection facility testing, which has the following beneficial effects:

[0036] The device achieves extremely low smoke leakage detection by dynamically fitting the irregular surface of the fire door with a double-sleeve adaptive sealing structure. The inner sleeve forcibly gathers the smoke to improve detection accuracy, while the outer sleeve, combined with the negative pressure recovery channel, absorbs the dissipated smoke in real time. In conjunction with the closed-loop purification system, it completely eliminates environmental pollution. The single-handed integrated device can simultaneously complete the entire process of pressing and sealing, smoke release and recovery, breaking through the technical bottlenecks of low detection efficiency, cumbersome operation and serious pollution in traditional detection methods. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0039] Figure 2 This is an exploded view of the smoke module of this utility model;

[0040] Figure 3 This is a schematic diagram of the internal structure of the housing of this utility model;

[0041] Figure 4 This is a schematic diagram showing the positional relationship between the conveying pipeline and the detection end of this utility model;

[0042] Figure 5 This is a schematic diagram of the conveying pipeline structure of this utility model;

[0043] Figure 6 This is a schematic diagram of the detection end structure of this utility model;

[0044] Figure 7 This is a partial cross-sectional view of the detection end of this utility model;

[0045] Figure 8 This utility model Figure 7 Enlarged schematic diagram of part A;

[0046] Figure 9 This is a partial side longitudinal sectional view of the detection end of this utility model;

[0047] Figure 10 This is an exploded view of the detection end of this utility model;

[0048] Figure 11 This is an exploded view of the shielding component a of this utility model;

[0049] Figure 12 This is one of the schematic diagrams of the shielding sheet structure of this utility model;

[0050] Figure 13 This is the second schematic diagram of the shielding sheet structure of this utility model.

[0051] In the diagram: 10. Smoke module; 110. Housing; 111. Side cover; 112. Top cover; 113. Exhaust port a; 120. Smoke generating mechanism; 121. Smoke generator; 1211. Inlet valve; 122. Centrifugal fan a; 123. Exhaust pipe; 130. Smoke recovery mechanism; 131. Centrifugal separator; 1311. Collection tank; 1312. Inlet pipe; 132. Centrifugal fan b; 133. Filter screen; 20. Conveying pipe; 210. Recovery pipe; 220. Conveying pipe; 230. 30. Handheld rod; 310. Detection end; 311. Main pipe; 312. Top plate; 323. Mounting plate; 324. Mounting slot a; 325. Mounting slot b; 326. Vent hole b; 327. Spiral tube; 328. Connecting ring; 339. Shielding component a; 330. Annular mounting base; 3311. Slide groove; 3312. Limiting groove; 332. Shielding sheet; 3321. Slider; 3322. Limiting shaft; 3323. Spring; 3324. Convex surface; 3325. Concave surface; 340. Shielding component b. Detailed Implementation

[0052] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0053] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0054] Example:

[0055] Please see Figures 1-13 This utility model provides a technical solution: a fire door testing device for testing fire protection facilities, comprising:

[0056] Smoke Module 10: Used for generating and recycling smoke;

[0057] Detection end 30: Used to test the sealing performance of fire doors using smoke;

[0058] Delivery pipe 20: connects the smoke module 10 and the detection end 30;

[0059] The delivery pipe 20 includes a recovery pipe 210, a delivery pipe 220, and a handheld rod 230, with the recovery pipe 210 and the delivery pipe 220 fixed to the handheld rod 230;

[0060] The delivery pipe 220 connects the exhaust port of the smoke module 10 to the input port of the detection end 30, and the recovery pipe 210 connects the return port of the detection end 30 to the recovery port of the smoke module 10.

[0061] Specifically, when smoke is conveyed to the detection end 30 through the delivery pipe 220 for sealing testing, the escaping smoke is drawn back to the smoke module 10 in real time using the recovery pipe 210. After being purified by the centrifugal separator 131 and the filter screen 133, a closed-loop circulation is formed to prevent smoke diffusion and pollution. The handheld rod 230 integrates a dual-pipe design, allowing the operator to control the release and recovery of smoke with one hand through the adaptive sealing structure of the shielding component a330 and the shielding component b340, which significantly improves the detection efficiency and reduces the intensity of operation.

[0062] Preferably, the smoke module 10 includes:

[0063] Housing 110: A side cover 111 is detachably installed on one side, a top cover 112 is detachably installed on the top, and an exhaust hole a113 is provided on the outer wall;

[0064] Smoke generating mechanism 120: located inside housing 110, including smoke generator 121, centrifugal fan a122 and smoke exhaust pipe 123; smoke generator 121 is fixed to the bottom of housing 110, and its side wall is equipped with an air inlet valve 1211 that extends to the outer wall of housing 110; centrifugal fan a122 is installed at the smoke exhaust port of smoke generator 121; smoke exhaust pipe 123 is connected to the air outlet of centrifugal fan a122 and extends to the outside of housing 110;

[0065] It should be noted that the smoke generator 121 is a commercial-grade aerosol generator, which converts liquid smoke agent into suspended particles with a particle size ≤5μm through an electrothermal atomization mechanism. After the air supply flow rate of the smoke agent is regulated by the air inlet valve 1211, it is pressurized and delivered to the smoke exhaust pipe 123 by the centrifugal fan a122. The smoke generation rate is controlled by the button on the hand lever 230. The outlet flange of the smoke generator 121 is directly connected to the inlet of the centrifugal fan a122. Its working state is powered by the power interface outside the housing 110, and the smoke generation volume is adjusted by the opening of the air inlet valve 1211.

[0066] Smoke recovery mechanism 130: includes centrifugal separator 131, centrifugal fan b132 and filter screen 133; centrifugal separator 131 is fixed to the inner wall of housing 110, housing 110 has an independent filter chamber, the exhaust end of centrifugal separator 131 extends into the filter chamber, centrifugal fan b132 is located in the filter chamber and communicates with the exhaust end of centrifugal separator 131, multiple filter screens 133 are detachably installed in the filter chamber; the air inlet end of centrifugal separator 131 is connected to an air inlet pipe 1312 that passes through the outside of housing 110, and a collection tank 1311 is detachably installed at the bottom of centrifugal separator 131.

[0067] Specifically, the detachable side cover 111 and top cover 112 facilitate the maintenance of core components such as the smoke generator 121 and centrifugal separator 131; the air inlet valve 1211 ensures the controllability of smoke generation, and the centrifugal fan a122 pressurizes and delivers the detected smoke through the exhaust pipe 123; after the air inlet pipe 1312 draws in the escaping smoke, the centrifugal separator 131 performs primary impurity separation, and the solid particles fall into the collection tank 1311. The centrifugal fan b132 drives the gas into the filter chamber and performs deep purification through the multi-layer filter screen 133. Finally, the clean air is discharged through the exhaust port a113, achieving efficient recycling and purification and avoiding the accumulation of toxic residues.

[0068] Preferably, the detection end 30 includes:

[0069] Main pipe 310: The output end is equipped with a top plate 311, and the input end is connected to the conveying pipe 220;

[0070] Mounting disc 320: It is fitted in the middle of the main pipe 310 and includes a spiral tube 324 and a connecting ring 325. The connecting ring 325 is fitted on the main pipe 310. Multiple spiral tubes 324 are radially connected to the connecting ring 325 and the mounting disc 320 to form a connection. The mounting disc 320 is provided with mounting groove a321 and mounting groove b322.

[0071] Shielding component a330 and shielding component b340 are respectively installed through mounting slot a321 and mounting slot b322 on mounting plate 320; mounting plate 320 has several vent holes b323, and the end of spiral tube 324 is embedded in the vent hole b323;

[0072] Both shielding component a330 and shielding component b340 are hollow columnar structures. The outer diameter of shielding component a330 is larger than that of shielding component b340 and the length is longer than that of shielding component b340. The two are coaxially nested to form a double sleeve structure.

[0073] The connecting ring 325 is connected to the intake pipe 1312 through the recovery pipe 210.

[0074] Specifically, the detection smoke conveyed by the main pipe 310 via the conveying pipe 220 is released directionally by the top plate 311. The inner cavity of the shielding component b340 wraps around the main pipe 310 to form a smoke gathering channel, significantly improving the efficiency of door gap penetration detection. In the double-sleeve structure formed by the nested shielding components a330 and b340, the outer shielding component a330 adapts and expands to fit tightly against the irregular surface of the fire door through the shielding sheet 332, blocking the smoke from escaping. The cavity between the two sleeves is connected to the spiral pipe 324 through the exhaust hole b323, and the smoke converges to the recovery pipe 210 through the connecting ring 325 to draw out the escaping smoke in real time. The mounting slots a321 and b322 enable quick disassembly and maintenance of the double shielding components.

[0075] Preferably, both shielding component a330 and shielding component b340 include:

[0076] Annular mounting base 331: Multiple sliding grooves 3311 and limiting grooves 3312 communicating with the sliding grooves 3311 are provided on the outer wall;

[0077] Multiple shielding plates 332: They are arranged in a ring around the axis of the annular mounting base 331. The shielding plates 332 have convex surfaces 3324 and concave surfaces 3325 on the two sides that contact the adjacent shielding plates 332 respectively. The adjacent shielding plates 332 slide and fit tightly together through the convex surfaces 3324 and the concave surfaces 3325.

[0078] A slider 3321 is fixed at the end of the shielding plate 332. A limiting shaft 3322 and a spring 3323 sleeved on the limiting shaft 3322 are installed on the slider 3321. The slider 3321 is slidably disposed in the sliding groove 3311, and the limiting shaft 3322 is slidably disposed in the limiting groove 3312.

[0079] Specifically, the sliding groove 3311 and the limiting groove 3312 on the annular mounting base 331 form a sliding track, allowing multiple shielding plates 332 to move flexibly along the sliding groove 3311 via the end slider 3321 ("displacement constraint: the limiting shaft 3322 guides the sliding within the limiting groove 3312"); the spring 3323 is sleeved on the limiting shaft 3322 to provide adaptive rebound force, pushing the shielding plates 332 to tightly fit the irregular surface of the fire door; adjacent shielding plates 332 make interlocking sliding contact through the convex surface 3324 and the concave surface 3325 ("convex surface 3324 is embedded in concave surface 3325"), maintaining a seamless annular sealing surface during the extension and retraction process, thus preventing the lateral escape of smoke.

[0080] Preferably, the inner cavity of the shielding component b340 covers the output end of the main pipe 310 for focusing and detecting smoke;

[0081] The cavity between shielding component a330 and shielding component b340 is connected to recovery pipe 210 through spiral tube 324 and connecting ring 325, and is used to absorb diffuse smoke.

[0082] Specifically, the inner cavity of shielding component b340 covers the output end of main pipe 310, forming a sealed smoke collection channel, which forces the detected smoke to penetrate the door gap in a directional manner, significantly improving the detection accuracy; the cavity between shielding component a330 and shielding component b340 is connected to the connecting ring 325 through radially distributed spiral tubes 324, and finally the escaping smoke is efficiently sucked up by the recovery tube 210, simultaneously realizing the dual anti-escape mechanism of physical isolation and negative pressure recovery of the double sleeve structure.

[0083] Preferably, the handheld lever 230 integrates the recycling pipe 210 and the conveying pipe 220, and the operator controls the detection end 30 to press the fire door seam through the handheld lever 230.

[0084] Specifically, by integrating the dual-channel design of the recovery pipe 210 and the delivery pipe 220, the operator can simultaneously control the detection end 30 to press against the fire door seam, trigger smoke release and recovery with one hand, completely eliminating the operational redundancy of switching multiple devices in traditional detection, significantly improving detection efficiency and reducing manual fatigue.

[0085] Working principle: The smoke generator 121 generates detection smoke, which is pressurized by the centrifugal fan a122 and enters the conveying pipe 220 through the smoke exhaust pipe 123. It is then conveyed to the main pipe 310 of the detection end 30 and released from the top plate 311. The operator uses the hand lever 230 to press the shielding assembly a330 and the shielding assembly b340 into the fire door seam. The shielding plate 332 slides along the slide groove 3311 under pressure, and the spring 3323 provides adaptive rebound force. The convex surface 3324 and the concave surface 3325 engage to achieve dynamic sealing. The inner cavity of the shielding assembly b340 converges. Smoke seeps through the door gaps and escapes. The smoke is blocked by the shielding component a330 and drawn into the cavity between it and the shielding component b340. It then enters the spiral tube 324 through the exhaust port b323, flows into the connecting ring 325, and is then drawn in by the recovery pipe 210. The recovered smoke enters the centrifugal separator 131 through the air inlet pipe 1312 to separate solid particles. The separated solid particles fall into the collection tank 1311. The remaining gas is driven by the centrifugal fan b132 to pass through the multi-layer filter screen 133 for purification. Finally, the clean air is discharged from the exhaust port a113, forming a closed-loop detection system.

[0086] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A fire door testing device for testing fire protection facilities, characterized in that, include: Smoke module (10): Used for generating and recycling smoke; Detection end (30): Used to test the sealing performance of fire doors using smoke; Delivery pipe (20): connects the smoke module (10) and the detection end (30); The delivery pipe (20) includes a recovery pipe (210), a delivery pipe (220), and a handheld rod (230), wherein the recovery pipe (210) and the delivery pipe (220) are fixed to the handheld rod (230); The delivery pipe (220) connects the exhaust port of the smoke module (10) to the input port of the detection end (30), and the recovery pipe (210) connects the return port of the detection end (30) to the recovery port of the smoke module (10).

2. The fire door testing device for fire protection facility testing according to claim 1, characterized in that: The smoke module (10) includes: Housing (110): A side cover (111) is detachably installed on one side, a top cover (112) is detachably installed on the top, and an exhaust hole a (113) is provided on the outer wall. Smoke generating mechanism (120): located inside the housing (110), including a smoke generator (121), a centrifugal fan a (122), and a smoke exhaust pipe (123); the smoke generator (121) is fixed to the bottom of the housing (110), and an air inlet valve (1211) is installed on its side wall, extending to the outer wall of the housing (110); the centrifugal fan a (122) is installed at the smoke exhaust port of the smoke generator (121); the smoke exhaust pipe (123) is connected to the air outlet of the centrifugal fan a (122) and extends to the outside of the housing (110); Smoke recovery mechanism (130): includes centrifugal separator (131), centrifugal fan b (132) and filter screen (133); the centrifugal separator (131) is fixed to the inner wall of the housing (110), the housing (110) is provided with an independent filter chamber, the exhaust end of the centrifugal separator (131) extends into the filter chamber, the centrifugal fan b (132) is located in the filter chamber and communicates with the exhaust end of the centrifugal separator (131), and multiple filter screens (133) are detachably installed in the filter chamber; the air inlet end of the centrifugal separator (131) is connected to an air inlet pipe (1312) that penetrates the outside of the housing (110), and a collection tank (1311) is detachably installed at the bottom of the centrifugal separator (131).

3. The fire door testing device for fire protection facility testing according to claim 1, characterized in that: The detection end (30) includes: Main pipe (310): The output end is equipped with a top plate (311), and the input end is connected to the conveying pipe (220). Mounting disc (320): Sleeved in the middle of the main pipe (310), including a spiral tube (324) and a connecting ring (325); the connecting ring (325) is sleeved on the main pipe (310), and multiple spiral tubes (324) are radially connected to the connecting ring (325) and the mounting disc (320) to form a connection; the mounting disc (320) is provided with mounting groove a (321) and mounting groove b (322); Shielding component a (330) and shielding component b (340): respectively installed through mounting slot a (321) and mounting slot b (322) on the mounting plate (320); the mounting plate (320) has several vent holes b (323), and the end of the spiral tube (324) is embedded in the vent hole b (323); Both shielding component a (330) and shielding component b (340) are hollow columnar structures. The outer diameter of shielding component a (330) is larger than that of shielding component b (340) and the length is longer than that of shielding component b (340). The two are coaxially nested to form a double sleeve structure. The connecting loop (325) is connected to the intake pipe (1312) through the recovery pipe (210).

4. The fire door testing device for fire protection facility testing according to claim 3, characterized in that: Both the shielding component a (330) and the shielding component b (340) include: Annular mounting base (331): Multiple sliding grooves (3311) and limiting grooves (3312) communicating with the sliding grooves (3311) are provided on the outer wall. Multiple shielding plates (332): arranged in a ring around the axis of the annular mounting base (331), with convex surfaces (3324) and concave surfaces (3325) respectively on the two sides of the shielding plate (332) that contact the adjacent shielding plate (332), and the adjacent shielding plates (332) are tightly slidably attached to each other through the convex surfaces (3324) and concave surfaces (3325); The shielding sheet (332) has a slider (3321) fixed at its end. A limiting shaft (3322) and a spring (3323) sleeved on the limiting shaft (3322) are installed on the slider (3321). The slider (3321) is slidably disposed in the slide groove (3311), and the limiting shaft (3322) is slidably disposed in the limiting groove (3312).

5. A fire door testing device for testing fire protection facilities according to claim 3, characterized in that: The shielding component b (340) has its inner cavity covering the output end of the main tube (310) for gathering and detecting smoke; The cavity between shielding component a (330) and shielding component b (340) is connected to the recovery pipe (210) via a spiral tube (324) and a connecting ring (325) for absorbing the escaping smoke.

6. The fire door testing device for fire protection facility testing according to claim 1, characterized in that: The handheld lever (230) integrates a recycling pipe (210) and a conveying pipe (220). The operator controls the detection end (30) to press the fire door seam through the handheld lever (230).

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