Device for testing fireproof performance of fireproof door

Abstract

The utility model belongs to the technical field of testing devices, and particularly relates to a fireproof door fireproof performance testing device which comprises a box body, a flame projector is arranged in the box body, a testing plate is slidably connected in the box body, the upper end of the box body is in contact with a cover, and a sealing gasket is slidably connected in the cover. The lower end of the cover is fixedly connected with a sliding rod, the sliding rod is in sliding connection with a sealing gasket, a spring is arranged in the sealing gasket, and a limiting mechanism is arranged on the outer side of the cover. According to the utility model, by arranging the box body, the cover, the sealing gasket and other parts, the fireproof plate can form an environment in which the back surface is sealed and the front side is sealed in the box body for testing, so that the fireproof performance of the fireproof plate is effectively tested, and the problem that the fireproof door is inconvenient to test during production is solved.

Description

Technical Field

[0001] This utility model relates to the field of testing device technology, specifically a fireproof door fire resistance performance testing device. Background Technology

[0002] Fire doors are doors specifically designed to prevent the spread of fire. They are primarily used in fire-resistant isolation and fire-separated areas of buildings, as well as in important evacuation routes. Made of special materials, fire doors effectively block the spread of flames, smoke, and high-temperature gases during a fire, thus buying time for evacuation and property protection. Fire doors are typically made of materials such as steel plates, aluminum alloys, and glass, and are filled with fire-resistant and heat-insulating materials such as rock wool and mineral wool. These materials effectively slow the spread of fire and ensure that the door maintains its structural integrity and high-temperature resistance during a fire. A fire door disclosed in utility model patent publication number CN221462181U includes a fire door panel and a gravity block. The gravity block is snapped into the interior of the fire door panel. Multiple support seats are fixedly installed inside the fire door panel. A first rotating bar and a second rotating bar are respectively hinged to the upper end of the multiple support seats. A locking block is fixedly installed at the end of the first rotating bar away from the second rotating bar. A locking groove is opened on the gravity block near the locking block. The locking block is snapped into the inside of the locking groove.

[0003] Testing the fire resistance of fire doors during the manufacturing process is a crucial step in ensuring they can effectively isolate fire sources and prevent the spread of fire in the event of a fire. However, in actual testing, due to the complexity and danger of simulated fire environments, it is often difficult to fully reproduce the various factors in real-world usage environments. Utility Model Content

[0004] The purpose of this invention is to provide a fireproof door fire resistance performance testing device, which solves the problem that it is inconvenient to test fireproof doors during production.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fireproof door fire resistance performance testing device, comprising a housing, a flamethrower installed inside the housing, a test plate slidably connected inside the housing, a cover in contact with the upper end of the housing, a sealing gasket slidably connected inside the cover, a sliding rod fixedly connected to the lower end of the cover, the sliding rod slidably connected to the sealing gasket, a spring installed inside the sealing gasket, and a limit mechanism installed on the outer side of the cover.

[0006] Preferably, a positioning seat is fixedly connected to the inner wall of the box, and the positioning seat is slidably connected to the test plate. The positioning seat can limit the position of the test plate.

[0007] Preferably, the sealing gasket is slidably connected to the chamber and contacts the test plate. The design of the sealing gasket can increase the sealing performance of the test plate inside the chamber.

[0008] Preferably, a limiting ring is fixedly connected inside the sealing gasket, and the limiting ring is slidably connected to the slide rod. Through the design of the limiting ring, the sealing gasket can be limited.

[0009] Preferably, one end of the spring contacts the sealing gasket, and the other end of the spring contacts the slide rod. Through the design of the spring, the sealing gasket can be driven to fit into the test plate.

[0010] Preferably, the limiting mechanism includes a limiting frame, a limiting frame slidably connected to the outer side of the cover, a limiting block fixedly connected to the outer side of the box, the limiting frame contacting the box, the limiting frame slidably connected to the limiting block, a threaded rod rotatably connected inside the limiting frame, a knob fixedly connected to the end of the threaded rod away from the limiting frame, the knob contacting the limiting frame, a fixing block fixedly connected to the upper end of the cover, the fixing block slidably connected to the limiting frame, and the fixing block and the threaded rod connected by threads. Through the design of the limiting mechanism, the cover can remain stable after installation.

[0011] Preferably, a retaining ring is fixedly connected to the outer side of the threaded rod, and the retaining ring is rotatably connected to the limiting frame. Through the design of the retaining ring, the threaded rod can drive the limiting frame to move.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, by setting up components such as a box, a cover, and a sealing gasket, can create an environment inside the box where the fireproof board is sealed on the back and tested on the front, thereby effectively testing the fireproof performance of the fireproof board and solving the problem that it is inconvenient to test fireproof doors during production.

[0014] 2. This utility model, by setting up components such as a limiting frame, a limiting block, and a threaded rod, can cause the threaded rod to rotate and make the threaded rod and the fixed block to move together, thereby causing the threaded rod to drive the limiting frame and the limiting block to engage, thus limiting the cover. This keeps the cover stable when the spring force causes the sealing gasket to stick to the test plate. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of this utility model;

[0016] Figure 2 For the present utility model Figure 1 A three-dimensional view of the local structure;

[0017] Figure 3 For the present utility model Figure 1 A front sectional view;

[0018] Figure 4 For the present utility model Figure 3 Enlarged view of part A of the structure.

[0019] In the diagram: 1. Box body; 11. Flamethrower; 12. Test plate; 13. Positioning seat; 2. Cover; 21. Sealing gasket; 22. Slide rod; 23. Limiting ring; 24. Spring; 3. Limiting mechanism; 31. Limiting bracket; 32. Limiting block; 33. Threaded rod; 34. Retaining ring; 35. Knob; 36. Fixing block. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4 A fireproof door fire resistance performance testing device includes a housing 1, a flamethrower 11 installed inside the housing 1, a test plate 12 slidably connected inside the housing 1, a positioning seat 13 fixedly connected to the inner wall of the housing 1, the positioning seat 13 slidably connected to the test plate 12, the positioning seat 13 is designed to limit the position of the test plate 12, a cover 2 is in contact with the upper end of the housing 1, a sealing gasket 21 is slidably connected inside the cover 2, the sealing gasket 21 is slidably connected to the housing 1, the sealing gasket 21 is in contact with the test plate 12, the sealing gasket 21 is designed to increase the sealing performance of the test plate 12 inside the housing 1.

[0022] Please see Figure 2-4 The lower end of the cover 2 is fixedly connected to a slide rod 22, which is slidably connected to the sealing gasket 21. A limit ring 23 is fixedly connected inside the sealing gasket 21, which is slidably connected to the slide rod 22. The limit ring 23 can limit the sealing gasket 21 through its design. A spring 24 is provided inside the sealing gasket 21. One end of the spring 24 contacts the sealing gasket 21, and the other end of the spring 24 contacts the slide rod 22. The spring 24 can drive the sealing gasket 21 to fit against the test plate 12. A limit mechanism 3 is provided on the outside of the cover 2.

[0023] Please see Figure 2-4The limiting mechanism 3 includes a limiting frame 31. The limiting frame 31 is slidably connected to the outside of the cover 2, and a limiting block 32 is fixedly connected to the outside of the box 1. The limiting frame 31 is in contact with the box 1, and the limiting frame 31 is slidably connected to the limiting block 32. A threaded rod 33 is rotatably connected inside the limiting frame 31, and a retaining ring 34 is fixedly connected to the outside of the threaded rod 33. The retaining ring 34 is rotatably connected to the limiting frame 31. Through the design of the retaining ring 34, the threaded rod 33 can drive the limiting frame 31 to move. A knob 35 is fixedly connected to the end of the threaded rod 33 away from the limiting frame 31. The knob 35 is in contact with the limiting frame 31. A fixing block 36 is fixedly connected to the upper end of the cover 2. The fixing block 36 is slidably connected to the limiting frame 31, and the fixing block 36 is threadedly connected to the threaded rod 33. Through the design of the limiting mechanism 3, the cover 2 can remain stable after installation.

[0024] The specific implementation process of this utility model is as follows: In use, the test plate 12 is inserted into the positioning seat 13, and then the cover 2 is installed with the box body 1, so that the cover 2 drives the sealing gasket 21 to slide into the box body 1. The elastic force of the spring 24 drives the sealing gasket 21 to fit with the test plate 12. Then, the knob 35 is turned, so that the knob 35 drives the threaded rod 33 to rotate, so that the threaded rod 33 and the fixing block 36 have threaded movement, so that the threaded rod 33 drives the limiting frame 31 to engage with the limiting block 32, so that the cover 2 can be fixed on the box body 1, thereby making the back of the test plate 12 in a sealed state.

[0025] By activating the flamethrower 11, the flamethrower 11 can be used to test the fire resistance performance of the test board 12. After the test is completed, the test board 12 can be removed from the box 1 by removing the cover 2, so as to check the front and back of the test board 12 to judge the fire resistance performance of the test board 12.

[0026] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for testing the fire resistance of a fire door, comprising a housing (1), characterised in that: The inside of the box (1) is provided with a fire sprayer (11), the inside of the box (1) is slidably connected with a test board (12), the upper end of the box (1) is contacted with a cover (2), the inside of the cover (2) is slidably connected with a sealing gasket (21), the lower end of the cover (2) is fixedly connected with a slide rod (22), the slide rod (22) is slidably connected with the sealing gasket (21), the inside of the sealing gasket (21) is provided with a spring (24), and the outer side of the cover (2) is provided with a limiting mechanism (3).

2. The fire door fire resistance performance testing device of claim 1, wherein: The inner wall of the box (1) is fixedly connected with a positioning seat (13), and the positioning seat (13) is slidably connected with the test board (12).

3. The fire door fire resistance performance testing device of claim 1, wherein: The sealing gasket (21) is slidably connected with the box (1), and the sealing gasket (21) is in contact with the test board (12).

4. The fire door fire resistance performance testing device of claim 1, wherein: The inside of the sealing gasket (21) is fixedly connected with a limiting ring (23), and the limiting ring (23) is slidably connected with the slide rod (22).

5. The fire door fire resistance performance testing device of claim 1, wherein: One end of the spring (24) is in contact with the sealing gasket (21), and the other end of the spring (24) is in contact with the slide rod (22).

6. The fire door fire resistance performance testing device of claim 1, wherein: The limiting mechanism (3) comprises a limiting frame (31), the outer side of the cover (2) is slidably connected with the limiting frame (31), the outer side of the box (1) is fixedly connected with a limiting block (32), the limiting frame (31) is in contact with the box (1), the limiting frame (31) is slidably connected with the limiting block (32), the inside of the limiting frame (31) is rotatably connected with a threaded rod (33), one end of the threaded rod (33) away from the limiting frame (31) is fixedly connected with a knob (35), the knob (35) is in contact with the limiting frame (31), the upper end of the cover (2) is fixedly connected with a fixed block (36), the fixed block (36) is slidably connected with the limiting frame (31), and the fixed block (36) is connected with the threaded rod (33) through threads.

7. The fire door fire resistance performance testing device of claim 6, wherein: The outer side of the threaded rod (33) is fixedly connected with a stop ring (34), and the stop ring (34) is rotatably connected with the limiting frame (31).

Images