Device for detecting fireproof performance of constructional engineering material

By introducing a support plate and a movable plate into the testing device, the problem of inconvenient replacement of the flame gun and materials is solved, and convenient fire resistance performance testing is achieved.

CN224176486UActive Publication Date: 2026-04-28LANGFANG YUDA BUILDING MATERIALS TESTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LANGFANG YUDA BUILDING MATERIALS TESTING CO LTD
Filing Date
2025-04-16
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing fire resistance testing devices for building materials suffer from inconvenience due to their cramped internal space during fuel replacement of the flame gun and material loading/unloading operations.

Method used

A device comprising a testing box, a support plate, a moving plate, and a driving mechanism is designed. The support plate is provided with a first placement square tube for placing the flame gun and a second placement square tube for placing materials. The driving mechanism moves the support plate and the moving plate to facilitate the replacement of the flame gun and materials.

Benefits of technology

The increased operating space facilitates the replacement of flamethrowers and materials, improving the efficiency of fire resistance testing.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224176486U_ABST
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Abstract

The utility model is applicable to the technical field of fireproof detection of engineering materials, and provides a fireproof performance detection device for constructional engineering materials, which comprises a detection box, the bottom of the inner wall of the detection box is fixedly connected with a containing box, and the top of the containing box is provided with a supporting plate which moves along the horizontal direction through a driving mechanism. One end of the upper surface of the supporting plate is fixedly connected with a first containing square barrel used for containing a flame gun, and the other end of the upper surface of the supporting plate is fixedly connected with a moving plate moving in the horizontal direction. According to the fireproof performance detection device for the building engineering material, after the function of the driving mechanism, the supporting plate can be driven to move to the outside of the detection box, so that the engineering material and a flame gun are exposed out of the device, the operation space of a worker is increased, and the flame gun or the engineering material can be conveniently replaced; fireproof performance detection of the engineering material is facilitated, and the fireproof performance detection efficiency of the engineering material is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of fire protection testing technology for engineering materials, and in particular relates to a fire protection performance testing device for building engineering materials. Background Technology

[0002] Flame retardancy refers to the property of a substance or material after treatment to significantly delay the spread of flame. This plays a guiding role in the selection of materials for use, especially for building engineering materials that require high flame retardancy. For example, curtain wall insulation panels installed on the exterior surface of buildings to form an integrated exterior wall insulation and decoration are directly related to people's lives and property safety if their flame retardancy meets the standards.

[0003] Chinese patent CN222014112U discloses a flame retardancy testing device for building materials. This technical solution uses the cooperation between movable jaws, fixed jaws, threaded rods and sliding rods to clamp building materials between two jaws. The flame retardancy performance of different building materials can be tested at different angles by the mutual sliding between a fixed ring and a slider, and by a rotating component.

[0004] However, during the use of this fire resistance testing device for building materials, after the fuel in the flame gun is used up, staff need to replace the flame gun inside the device. After the testing of the building materials is completed, staff also need to load and unload the materials inside the device. The small space inside the device makes operation inconvenient and thus not conducive to the use of the fire resistance testing device for building materials. Utility Model Content

[0005] This utility model provides a fire resistance performance testing device for building materials, aiming to solve the problem that fire guns need to be replaced inside the device by staff, and the small space inside the device makes operation inconvenient.

[0006] This utility model is implemented as follows: a fire resistance performance testing device for building materials includes a testing box, a receiving box is fixedly connected to the bottom of the inner wall of the testing box, a support plate that moves horizontally is provided on the top of the receiving box through a driving mechanism, and a first placement square tube for placing a flame gun is fixedly connected to one end of the upper surface of the support plate.

[0007] The other end of the upper surface of the support plate is fixedly connected to a movable plate that moves in the horizontal direction. One end of the upper surface of the movable plate is fixedly connected to a second placement square tube for placing engineering materials, and the other end of the upper surface of the movable plate is fixedly connected to a high-temperature fire baffle plate that limits the length of flame jet.

[0008] Preferably, the front side of the testing box is provided with a door, and the door is provided with an explosion-proof window.

[0009] Preferably, the driving mechanism includes a motor, a threaded rod, a threaded sleeve, and a fixing block. The motor is fixedly connected to the front end of the inner wall of the receiving box, the threaded rod is fixedly connected to the output shaft of the motor, the threaded sleeve is threadedly connected to the surface of the threaded rod, the fixing block is fixedly connected to the top of the threaded sleeve, and the top extends movably to the outside of the receiving box. The top of the fixing block is fixedly connected to the lower surface of the support plate.

[0010] Preferably, a fixed seat is fixedly connected to one end of the front side of the upper surface of the support plate, and an electric telescopic rod is fixedly connected to the other side of the fixed seat. The other end of the electric telescopic rod is fixedly connected to the surface of the movable plate, and the side wall of the movable plate is slidably connected to the upper surface of the support plate.

[0011] Preferably, the first placement square tube is provided with a first bolt at both the front and rear ends. The outer end of the first bolt is fixedly connected to a first torsion handle, and the inner end of the first bolt extends rotatably into the interior of the first placement square tube and is rotatably connected to a first clamping plate that is slidably connected to the inner wall surface of the first placement square tube.

[0012] Preferably, a second bolt is provided on the other side of the second placement square tube, the outer end of the second bolt is fixedly connected to a second torsion handle, the inner end of the second bolt extends rotatably into the interior of the second placement square tube, and is rotatably connected to a second clamping plate that is slidably connected to the inner wall of the second placement square tube.

[0013] Preferably, the surface of the testing box is provided with a control panel, the top of the testing box is provided with a negative pressure purification component, the top of the testing box is connected to a suction hopper, the air inlet of the negative pressure purification component is connected to a connecting pipe, and the other end of the connecting pipe is connected to the suction hopper.

[0014] Beneficial Effects: Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a fire resistance performance testing device for building engineering materials. After the operator places the fire-resistant gun inside the first placement box, the engineering materials to be tested for fire resistance performance are placed inside the second placement box. The fire-resistant gun can then be turned on to test the performance of the engineering materials. After the test is completed, the drive mechanism moves the support plate to the outside of the testing box, exposing the engineering materials and the fire-resistant gun to the outside of the device. This increases the operator's working space and allows for convenient replacement of the fire-resistant gun or engineering materials, facilitating the testing of the fire resistance performance of engineering materials and improving the efficiency of the fire resistance performance testing. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a front structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the first and second placement square tubes in this utility model;

[0018] Figure 4 This is a schematic diagram of the drive mechanism in this utility model.

[0019] In the diagram: 1. Detection box; 2. Container box; 3. Threaded rod; 4. Motor; 5. Threaded sleeve; 6. Fixing block; 7. Support plate; 8. First placement square tube; 9. First bolt; 10. First torsion handle; 11. First clamping plate; 12. Fixing seat; 13. Electric telescopic rod; 14. Moving plate; 15. High-temperature fireproof plate; 16. Second placement square tube; 17. Second bolt; 18. Second torsion handle; 19. Second clamping plate; 20. Box door; 21. Explosion-proof window; 22. Suction duct; 23. Connecting pipe; 24. Negative pressure purification component; 25. Control panel. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] Please see Figure 1-4 This utility model provides a technical solution: a fire resistance performance testing device for building materials, including a testing box 1, a receiving box 2 fixedly connected to the bottom of the inner wall of the testing box 1, a support plate 7 that moves horizontally is provided on the top of the receiving box 2 through a driving mechanism, and a first placement square tube 8 for placing a flame gun is fixedly connected to one end of the upper surface of the support plate 7.

[0022] The other end of the upper surface of the support plate 7 is fixedly connected to a movable plate 14 that moves in the horizontal direction. One end of the upper surface of the movable plate 14 is fixedly connected to a second placement square tube 16 for placing engineering materials, and the other end of the upper surface of the movable plate 14 is fixedly connected to a high-temperature fire baffle 15 that limits the length of flame jet.

[0023] After the staff places the fireproof gun inside the first placement box 8, they then place the engineering materials that need to be tested for fire resistance into the inner cavity of the second placement box 16, and then they can turn on the fireproof gun to test the performance of the engineering materials.

[0024] After the test is completed, the support plate 7 can be moved to the outside of the test box 1 by the drive mechanism, so that the engineering materials and the flame gun are exposed to the outside of the device, increasing the operating space of the staff, and making it easier to replace the flame gun or engineering materials. This facilitates the testing of the fire resistance performance of the engineering materials and improves the efficiency of the fire resistance performance testing.

[0025] Furthermore, the front side of the testing box 1 is provided with a door 20, and the door 20 is provided with an explosion-proof window 21.

[0026] In this embodiment, the explosion-proof window 21 facilitates staff to observe the changes of engineering materials in flames, and the box door 20 facilitates safety protection during the testing process.

[0027] Furthermore, the drive mechanism includes a motor 4, a threaded rod 3, a threaded sleeve 5, and a fixing block 6. The motor 4 is fixedly connected to the front end of the inner wall of the receiving box 2, the threaded rod 3 is fixedly connected to the output shaft of the motor 4, the threaded sleeve 5 is threadedly connected to the surface of the threaded rod 3, and the fixing block 6 is fixedly connected to the top of the threaded sleeve 5, with the top extending movably to the outside of the receiving box 2. The top of the fixing block 6 is fixedly connected to the lower surface of the support plate 7.

[0028] In this embodiment, after the motor 4 drives the threaded rod 3 to rotate, it can drive the threaded sleeve 5 to move. With the connection of the fixing block 6, the support plate 7 can also move together.

[0029] Furthermore, a fixed seat 12 is fixedly connected to one end of the front side of the upper surface of the support plate 7, and an electric telescopic rod 13 is fixedly connected to the other side of the fixed seat 12. The other end of the electric telescopic rod 13 is fixedly connected to the surface of the movable plate 14, and the side wall of the movable plate 14 is slidably connected to the upper surface of the support plate 7.

[0030] In this embodiment, when the electric telescopic rod 13 extends and retracts, it can drive the moving plate 14 to move in the horizontal direction, which facilitates the adjustment of the distance between the engineering material and the flame gun and facilitates the control of the detection temperature.

[0031] Furthermore, the front and rear ends of the first placement square tube 8 are provided with first bolts 9. The outer end of the first bolt 9 is fixedly connected to a first torsion handle 10, and the inner end of the first bolt 9 extends rotatably into the interior of the first placement square tube 8 and is rotatably connected to a first clamping plate 11 that is slidably connected to the inner wall surface of the first placement square tube 8.

[0032] In this embodiment, after the flame gun is placed inside the first placement square tube 8, the first torsion handle 10 is turned to move the first bolt 9, which in turn causes the first clamping plate 11 to come into contact with the surface of the flame gun, thereby clamping and fixing the flame gun.

[0033] Furthermore, a second bolt 17 is provided on the other side of the second placement square tube 16. The outer end of the second bolt 17 is fixedly connected to a second torsion handle 18. The inner end of the second bolt 17 extends rotatably into the interior of the second placement square tube 16 and is rotatably connected to a second clamping plate 19 that is slidably connected to the inner wall of the second placement square tube 16.

[0034] In this embodiment, after the engineering material is placed inside the second placement tube 16, the second torsion handle 18 is turned, and the second clamping plate 19 is brought into contact with the surface of the engineering material by the second bolt 17, so that the engineering material can be clamped and fixed.

[0035] Furthermore, the surface of the detection box 1 is provided with a control panel 25, the top of the detection box 1 is provided with a negative pressure purification component 24, the top of the detection box 1 is connected to a suction hopper 22, the air inlet of the negative pressure purification component 24 is connected to a connecting pipe 23, and the other end of the connecting pipe 23 is connected to the suction hopper 22.

[0036] In this embodiment, both the control panel 25 and the negative pressure purification component 24 are existing technologies and will not be described in detail here. After the negative pressure purification component 24 is working, it can draw the airflow inside the suction hopper 22 through the connecting pipe 23, so that the inside of the suction hopper 22 generates negative pressure, thereby absorbing and purifying the harmful gases generated during the fire detection work inside the detection box 1.

[0037] The working principle and usage process of this utility model are as follows: After the utility model is installed, the staff places the fireproof gun inside the first placement box 8, and then places the engineering materials that need to be tested for fire resistance performance inside the second placement box 16. The fireproof gun can then be turned on to test the performance of the engineering materials. After the test is completed, the support plate 7 can be moved to the outside of the test box 1 by the drive mechanism, so that the engineering materials and the fireproof gun are exposed to the outside of the device, increasing the operating space of the staff and making it convenient to replace the fireproof gun or the engineering materials.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fire resistance performance testing device for building materials, comprising a testing box (1), characterized in that: The bottom of the inner wall of the detection box (1) is fixedly connected to a receiving box (2), and the top of the receiving box (2) is provided with a support plate (7) that moves in the horizontal direction through a driving mechanism. One end of the upper surface of the support plate (7) is fixedly connected to a first placement square tube (8) for placing a flame gun. The other end of the upper surface of the support plate (7) is fixedly connected to a movable plate (14) that moves in the horizontal direction. One end of the upper surface of the movable plate (14) is fixedly connected to a second placement square tube (16) for placing engineering materials. The other end of the upper surface of the movable plate (14) is fixedly connected to a high-temperature fire baffle (15) that limits the length of flame jet. The drive mechanism includes a motor (4), a threaded rod (3), a threaded sleeve (5), and a fixing block (6). The motor (4) is fixedly connected to the front end of the inner wall of the housing (2). The threaded rod (3) is fixedly connected to the output shaft of the motor (4). The threaded sleeve (5) is threadedly connected to the surface of the threaded rod (3). The fixing block (6) is fixedly connected to the top of the threaded sleeve (5), and the top extends movably to the outside of the housing (2). The top of the fixing block (6) is fixedly connected to the lower surface of the support plate (7).

2. The fire resistance performance testing device for building materials as described in claim 1, characterized in that: The front side of the testing box (1) is provided with a door (20), and the door (20) is provided with an explosion-proof window (21).

3. The fire resistance performance testing device for building materials as described in claim 1, characterized in that: A fixed seat (12) is fixedly connected to one end of the front side of the upper surface of the support plate (7), and an electric telescopic rod (13) is fixedly connected to the other side of the fixed seat (12). The other end of the electric telescopic rod (13) is fixedly connected to the surface of the moving plate (14), and the side wall of the moving plate (14) is slidably connected to the upper surface of the support plate (7).

4. The fire resistance performance testing device for building materials as described in claim 1, characterized in that: The first placement square tube (8) is provided with a first bolt (9) at both the front and rear ends. The outer end of the first bolt (9) is fixedly connected to a first torsion handle (10). The inner end of the first bolt (9) extends rotatably into the interior of the first placement square tube (8) and is rotatably connected to a first clamping plate (11) that is slidably connected to the inner wall surface of the first placement square tube (8).

5. The fire resistance performance testing device for building materials as described in claim 1, characterized in that: A second bolt (17) is provided on the other side of the second placement tube (16). The outer end of the second bolt (17) is fixedly connected to a second torsion handle (18). The inner end of the second bolt (17) extends rotatably into the interior of the second placement tube (16) and is rotatably connected to a second clamping plate (19) that is slidably connected to the inner wall of the second placement tube (16).

6. The fire resistance performance testing device for building materials as described in claim 1, characterized in that: The surface of the test box (1) is provided with a control panel (25), the top of the test box (1) is provided with a negative pressure purification component (24), the top of the test box (1) is connected to a suction bucket (22), the air inlet of the negative pressure purification component (24) is connected to a connecting pipe (23), and the other end of the connecting pipe (23) is connected to the suction bucket (22).

Citation Information

Patent Citations

  • Device for detecting flame retardancy of constructional engineering material

    CN222014112U