Fire detection hot smoke generator
By designing a detachable exhaust pipe and a dedicated smoke cake placement box, the problems of inconvenient transportation of the hot smoke generator and inconvenient cleaning of the smoke cake are solved, improving detection efficiency and convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN HONGXING FIRE FIGHTING EQUIPMENT CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-26
AI Technical Summary
The existing hot smoke generators have long exhaust pipes that are fixed in place, making transportation inconvenient. At the same time, there is a lack of dedicated smoke cake containers, which affects the detection efficiency.
A fire detection hot smoke generating device was designed, comprising a frame, a first housing, and a second housing. The smoke exhaust pipe can be detached and assembled through a sliding connection and a bidirectional screw mechanism. It is also equipped with a special smoke cake placement box for easy removal and cleaning of the smoke cake.
It enables convenient assembly and disassembly of the exhaust pipe, solves the problem of inconvenient transportation, and improves detection efficiency and simplifies the cleaning process through a special smoke cake placement box.
Smart Images

Figure CN224417383U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire protection, and more specifically, to a fire detection thermal smoke generator. Background Technology
[0002] Building fire protection facility inspection involves testing the specific technical performance indicators of various systems within a building's fire protection system using designated methods. This determines whether the fire protection facilities meet the standards and requirements stipulated in the regulations, ensuring they achieve their intended use. In the event of a fire or other fire accident indoors, smoke is generated. Smoke detectors are needed to detect this, triggering timely alarms and water spraying. Smoke detectors also require regular testing to ensure they can monitor indoor conditions in real time and take timely alarm measures. Before a building is officially put into use, it is crucial to evaluate the performance of its smoke control and exhaust systems through on-site thermal smoke testing, without causing damage to the site. This involves using thermal smoke generators to simulate fire conditions and test whether smoke detectors meet the standards.
[0003] Most existing hot smoke generators have long exhaust pipes and are fixed installations, making them very inconvenient to transport. In addition, there is a lack of containers specifically for placing smoke cakes. Therefore, we have made improvements to this by proposing a fire detection hot smoke generator. Utility Model Content
[0004] To achieve the above-mentioned objectives, this utility model provides the following technical solution:
[0005] Firefighting equipment for detecting and treating hot smoke generators is recommended to address the aforementioned issues.
[0006] The present invention is as follows:
[0007] The vehicle includes a frame, on which a first housing is fixedly mounted. A smoke pellet holder is placed inside the first housing, and a door panel is slidably connected to the smoke pellet holder. A second housing is fixedly mounted on the frame, communicating with the first housing. An exhaust fan is fixedly mounted between the second and first housings. A connecting seat is slidably connected to the top of the second housing, and a first exhaust pipe is fixedly mounted on the top of the connecting seat. A second exhaust pipe is fixedly mounted on the top of the first exhaust pipe. A connector is fixedly mounted on the front of the second housing, and a bidirectional lead screw is rotatably connected to the connector. Mounting blocks are threaded to both ends of the bidirectional lead screw, and L-shaped inserts are fixedly mounted on the mounting blocks. A drive mechanism is provided at the end of the bidirectional lead screw.
[0008] As a preferred technical solution of this utility model, a protective net is fixedly installed inside the smoke cake placement box, and a handle is fixedly installed on the top of the door panel.
[0009] As a preferred technical solution of this utility model, a slide bar is fixedly installed at the bottom of the connecting seat, and the connecting seat is slidably connected to the second housing through the slide bar.
[0010] As a preferred technical solution of this utility model, extension seats are fixedly installed on both sides of the second box.
[0011] As a preferred technical solution of this utility model, a slider is fixedly installed at the bottom of the L-shaped plug, and the L-shaped plug is slidably connected to the extension seat through the slider.
[0012] As a preferred technical solution of this utility model, the driving mechanism includes a handwheel fixedly installed at one end of a bidirectional lead screw, and a limit plate fixedly installed at the end of the bidirectional lead screw away from the handwheel.
[0013] As a preferred technical solution of this utility model, slots are provided on both sides of the connecting seat, and the slots are matched with the L-shaped plug rod.
[0014] As a preferred technical solution of this utility model, a brake caster is fixedly installed at the bottom of the frame, and a switch is provided on the side wall of the first housing.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] In the solution of this utility model:
[0017] 1. By sliding the connecting seat onto the top of the second housing, the slide bar slides into the groove on the top of the second housing. Then, the handwheel is turned, which drives the double-acting screw to rotate. The double-acting screw rotates, which moves the mounting block. The mounting block moves the L-shaped insert rod, which moves the slider in the groove on the top of the extension seat, allowing the L-shaped insert rod to be inserted into the slot on the side wall of the connecting seat, thus fixing the connecting seat in place. This allows for convenient and quick assembly or disassembly, solving the problem that the exhaust pipe of the existing hot smoke generator is long and fixed, making it very inconvenient to transport.
[0018] 2. By designing a special smoke pellet holder, the smoke pellet holder can be removed separately for easy cleaning, eliminating the need to clean the entire box. Attached Figure Description
[0019] Figure 1 A schematic diagram of the fire detection thermal smoke generator provided by this utility model;
[0020] Figure 2 A schematic diagram of the fire detection smoke generator provided by this utility model after removing the vehicle frame;
[0021] Figure 3A cross-sectional structural schematic diagram of the fire detection hot smoke generator provided by this utility model;
[0022] Figure 4 A schematic diagram of the connecting component structure of the fire detection hot smoke generator provided by this utility model;
[0023] Figure 5 A schematic diagram of the slot structure of the fire detection hot smoke generator provided by this utility model;
[0024] Figure 6 A schematic diagram of the protective net and handle structure of the fire detection hot smoke generator provided by this utility model;
[0025] Figure 7 A schematic diagram of the handwheel and limit plate structure of the fire detection hot smoke generator provided by this utility model.
[0026] The image shows:
[0027] 1. Frame; 2. First housing; 3. Smoke cake holder; 4. Door panel; 5. Second housing; 6. Exhaust fan; 7. Connecting seat; 8. First exhaust pipe; 9. Second exhaust pipe; 10. Connector; 11. Two-way lead screw; 12. Mounting block; 13. L-shaped insert; 14. Protective net; 15. Handle; 16. Slide bar; 17. Slider; 18. Slot; 19. Handwheel; 20. Limiting plate; 21. Switch; 22. Brake caster wheel; 23. Extension seat. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.
[0029] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0030] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.
[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0032] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0033] Example:
[0034] like Figure 1-7 As shown, this embodiment proposes a fire detection hot smoke generating device, including a frame 1. A first housing 2 is fixedly installed on the frame 1. A smoke pellet placement box 3 is placed inside the first housing 2. The smoke pellet placement box 3 is specially designed to hold the smoke pellets, allowing for easy removal and cleaning. A door panel 4 is slidably connected to the smoke pellet placement box 3. After opening the door panel 4, the smoke pellets are placed inside the smoke pellet placement box 3. A second housing 5 is fixedly installed on the frame 1, communicating with the first housing 2. An exhaust fan 6 is fixedly installed between the second housing 5 and the first housing 2, drawing hot smoke into the second housing 5. A connecting seat 7 is slidably connected to the top of the second housing 5. A first exhaust pipe 8 is fixedly installed on the top of the connecting seat 7, and then enters into the first exhaust pipe 8 at the top. A second exhaust pipe 9 is fixedly installed on the top of the first exhaust pipe 8, and then enters into the second exhaust pipe 9, and finally exits. A connector 10 is fixedly installed on the front of the second housing 5. A double-acting screw 11 is rotatably connected to the connector 10. Both ends of the double-acting screw 11 are threadedly connected to the mounting blocks 12. The rotation of the double-acting screw 11 drives the mounting blocks 12 to move. An L-shaped insert 13 is fixedly installed on the mounting blocks 12. The mounting blocks 12 drive the L-shaped insert 13 to move. A drive mechanism is provided at the end of the double-acting screw 11. The drive mechanism drives the double-acting screw 11 to rotate.
[0035] A protective net 14 is fixedly installed inside the smoke cake placement box 3, and a handle 15 is fixedly installed on the top of the door panel 4. Pulling the handle 15 will cause the door panel 4 to move.
[0036] A slide bar 16 is fixedly installed at the bottom of the connecting seat 7. The connecting seat 7 is slidably connected to the second housing 5 through the slide bar 16. The connecting seat 7 is slidably installed on the top of the second housing 5 so that the slide bar 16 slides into the groove on the top of the second housing 5.
[0037] Extension seats 23 are fixedly installed on both sides of the second housing 5. A slider 17 is fixedly installed at the bottom of the L-shaped plug 13. The L-shaped plug 13 is slidably connected to the extension seat 23 through the slider 17. The movement of the L-shaped plug 13 causes the slider 17 to slide in the groove at the top of the extension seat 23.
[0038] The drive mechanism includes a handwheel 19 fixedly installed at one end of the bidirectional lead screw 11. Rotating the handwheel 19 causes the bidirectional lead screw 11 to rotate. A limit plate 20 is fixedly installed at the end of the bidirectional lead screw 11 away from the handwheel 19.
[0039] Slots 18 are provided on both sides of the connector 7. The slots 18 match the L-shaped plug 13. When the L-shaped plug 13 is inserted into the slots 18 on the side wall of the connector 7, the connector 7 is fixed in place.
[0040] Brake casters 22 are fixedly installed at the bottom of the frame 1 to facilitate the movement of this device. A switch 21 is provided on the side wall of the first housing 2, and the switch 21 controls the exhaust fan 6.
[0041] Specifically, when using this fire detection smoke generator: install the smoke exhaust pipe on the top of the second housing 5, slide the connecting seat 7 on the top of the second housing 5, so that the slide bar 16 slides into the slide groove on the top of the second housing 5, then turn the handwheel 19. The rotation of the handwheel 19 drives the double-acting screw 11 to rotate, the rotation of the double-acting screw 11 drives the mounting block 12 to move, the mounting block 12 drives the L-shaped insert rod 13 to move, the movement of the L-shaped insert rod 13 drives the slider 17 to slide in the slide groove on the top of the extension seat 23, so that the L-shaped insert rod 13 is inserted into the slot 18 on the side wall of the connecting seat 7, thus fixing the connecting seat 7; thus realizing convenient and quick assembly or disassembly.
[0042] Next, pull handle 15, which will open door panel 4. Place the smoke pellet in smoke pellet placement box 3, ignite the smoke pellet, close door panel 4, and start exhaust fan 6. Exhaust fan 6 draws the hot smoke into the second chamber 5, then into the first exhaust pipe 8 at the top, then into the second exhaust pipe 9, and finally out. The smoke pellet placement box 3 is specially designed to hold the smoke pellet, allowing it to be removed separately for easy cleaning without having to clean the entire chamber.
[0043] After use, remove the exhaust pipe and place it on frame 1 to prevent inconvenience during transportation due to the high height of the exhaust pipe.
[0044] All technical features in this embodiment can be freely combined according to actual needs.
[0045] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.
Claims
1. A fire detection hot smoke generator, comprising a frame (1), characterized in that, A first housing (2) is fixedly installed on the frame (1). A smoke pellet holder (3) is placed inside the first housing (2). A door panel (4) is slidably connected to the smoke pellet holder (3). A second housing (5) is fixedly installed on the frame (1). The second housing (5) is connected to the first housing (2). An exhaust fan (6) is fixedly installed between the second housing (5) and the first housing (2). A connecting seat (7) is slidably connected to the top of the second housing (5). (7) A first exhaust pipe (8) is fixedly installed on the top. A second exhaust pipe (9) is fixedly installed on the top of the first exhaust pipe (8). A connector (10) is fixedly installed on the front of the second housing (5). A two-way screw (11) is rotatably connected to the connector (10). A mounting block (12) is threaded at both ends of the two-way screw (11). An L-shaped plug (13) is fixedly installed on the mounting block (12). A drive mechanism is provided at the end of the two-way screw (11).
2. The fire detection thermal smoke generator according to claim 1, characterized in that, A protective net (14) is fixedly installed inside the tobacco cake placement box (3), and a handle (15) is fixedly installed on the top of the door panel (4).
3. The fire detection thermal smoke generator according to claim 2, characterized in that, The bottom of the connecting seat (7) is fixedly installed with a slide bar (16), and the connecting seat (7) is slidably connected to the second housing (5) through the slide bar (16).
4. A fire detection smoke generator according to claim 3, characterized in that, Extension seats (23) are fixedly installed on both sides of the second housing (5).
5. A fire detection smoke generator according to claim 4, characterized in that, The bottom of the L-shaped insert (13) is fixedly installed with a slider (17), and the L-shaped insert (13) is slidably connected to the extension seat (23) through the slider (17).
6. A fire detection smoke generator according to claim 5, characterized in that, The drive mechanism includes a handwheel (19) fixedly installed at one end of a bidirectional lead screw (11), and a limit plate (20) fixedly installed at the end of the bidirectional lead screw (11) away from the handwheel (19).
7. A fire detection thermal smoke generator according to claim 6, characterized in that, The connecting seat (7) has slots (18) on both sides, and the slots (18) are matched with the L-shaped plug (13).
8. A fire detection smoke generator according to claim 7, characterized in that, The bottom of the frame (1) is fixedly equipped with a brake caster (22), and the side wall of the first housing (2) is provided with a switch (21).