Combustion performance test box

Abstract

The utility model relates to the technical field of combustion performance testing, and discloses a combustion performance testing box which comprises a box body and a movable window rotatably installed on the side face of the box body. A to-be-tested material is ignited through an ignition device for combustion performance testing, after testing is completed, a connecting rod can be pulled firstly, the connecting rod is pulled out along a first sliding groove, the connecting rod drives a connecting plate and a rotating rod to move outwards, and when the connecting plate moves, a movable rod is driven to slide along a second sliding groove; when the connecting plate moves outwards, the rotating rod makes contact with the steel wire brush, the steel wire brush brushes off combustion slag remaining on the rotating rod, cleaning of the interior of the connecting plate is automatically completed, and after cleaning is completed, the connecting rod is pushed into the first sliding groove. When the combustion performance test box is used, the rotating rod in the connecting plate can be cleaned by pulling the connecting rod, and therefore the combustion performance test box is convenient to use. And the subsequent combustion performance test can be conveniently carried out.

Description

Technical Field

[0001] This utility model relates to the field of combustion performance testing technology, specifically a combustion performance testing chamber. Background Technology

[0002] Combustion performance refers to all the physical and chemical changes that occur when a material burns or is exposed to fire. This performance is measured by characteristics such as the ignition and flame spread of the material surface, heat generation, smoke production, charring, weight loss, and the production of toxic products. Combustion can produce light and heat, and by detecting factors such as the flammability and combustion rate of a material, its applications in various fields can be determined.

[0003] A combustion performance testing device, such as one described in application number CN214845060U, is used to test the combustion of decorative panels. The device includes a housing, a heating assembly, a clamping assembly, a blocking assembly, and a controller. The heating assembly includes a slider and an igniter. The clamping assembly includes a fixing block, a telescopic component, and a clamping component. The blocking assembly includes a motor and a barrier plate with a through hole aligned with both the igniter and the decorative panel. The controller is located on one side of the slider and includes a pressure sensor and a timer. The controller is electrically connected to both the igniter and the motor. When the decorative panel is placed on the clamping assembly, the fixing block is slid to align the decorative panel with the through hole, and the slider is slid to align the igniter with the through hole. The pressure sensor receives pressure from the slider, the controller controls the igniter to ignite the panel, and the timer starts counting. Once the timer finishes counting, the controller controls the motor to rotate, displacing the through hole from the igniter, thus precisely controlling the combustion time of the decorative panel.

[0004] The aforementioned patent can precisely control the combustion time, but when conducting combustion performance tests, some materials produce a lot of residue during combustion. After the combustion test, the inside of the device needs to be cleaned before testing different materials or the next group of materials can be conducted. The cleaning process is quite cumbersome, and the ash produced by combustion is relatively light and easily blown away by the wind during cleaning, which is time-consuming and laborious.

[0005] Therefore, we propose a combustion performance test chamber to address the aforementioned problems. Utility Model Content

[0006] The purpose of this utility model is to provide a combustion performance testing chamber to solve the problems mentioned in the background art, such as the fact that some materials produce a lot of residue when burning during combustion performance testing, and the inside of the device needs to be cleaned after the combustion test before testing different materials or the next group of materials. The cleaning process is cumbersome, and the ash produced by combustion is light and easily blown away by the wind during cleaning, which is time-consuming and laborious.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a combustion performance testing chamber, comprising a chamber body and a movable window rotatably mounted on the side of the chamber body. A discharge port is provided at the lower end of the chamber body. An ignition device is installed inside the chamber body. A sliding groove is provided on the surface of the chamber body. A movable structure is installed inside the chamber body. The movable structure includes a connecting rod slidably mounted in the sliding groove. A connecting plate is fixedly mounted at one end of the connecting rod. Rotating rods are equidistantly mounted between the inner walls of the two sides of the connecting plate. Movable rods are fixedly mounted on both sides of one end of the connecting plate. A fixing block is fixedly mounted on the inner wall of the chamber body. A second sliding groove is provided on both sides of the fixing block. Two movable rods are slidably connected in the two second sliding grooves. An L-shaped rod is fixedly mounted on the upper end of the inner wall of the first sliding groove. A wire brush is fixedly mounted on the lower end of the L-shaped rod. When the connecting plate moves, the wire brush contacts the rotating rod.

[0008] Preferably, a telescopic block is fixedly installed inside the housing, and an electric push rod is fixedly installed between the inner wall of the movable end of the telescopic block and the inner wall of the housing. The ignition device is fixedly installed on the upper end of the movable end of the telescopic block.

[0009] Preferably, a fixing plate is fixedly installed at the lower end of the fixing block, and telescopic rods are fixedly installed on both sides of the side wall of the fixing plate. A movable block is fixedly installed at one end of each telescopic rod. A spring is sleeved on the outer side of each of the two telescopic rods, and the two ends of the spring are fixedly connected to the side wall of the fixing plate and the side wall of the movable block, respectively.

[0010] Preferably, a guide frame is fixedly installed on the inner wall of the box, one side wall of the guide frame is connected to the discharge port, and the movable block is movably installed inside the guide frame.

[0011] Preferably, the telescopic block is installed at the lower end of the fixed block, and the telescopic block contacts the side wall of the movable block when it extends.

[0012] Preferably, a smoke exhaust pipe is fixedly installed at the upper interior of the housing, and a fan is fixedly installed at one end of the smoke exhaust pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. When conducting a combustion performance test, first place the material to be tested onto the rotating rod through the movable window. Ignite the material using the ignition device to conduct the combustion performance test. After the test is completed, pull the connecting rod to extend it along the first slide groove. The connecting rod will move the connecting plate and the rotating rod outward. As the connecting plate moves, it will cause the movable rod to slide along the second slide groove. When the connecting plate moves outward, the rotating rod will come into contact with the wire brush. The wire brush will brush off the residual slag on the rotating rod, automatically cleaning the inside of the connecting plate. After cleaning, push the connecting rod back into the first slide groove. When using this combustion performance test chamber, the rotating rod inside the connecting plate can be cleaned by pulling the connecting rod, which facilitates subsequent combustion performance testing.

[0015] 2. With the cooperation of the telescopic block, electric actuator, ignition device, fan, fixed plate, telescopic rod, spring, guide frame and movable block, the device can directly discharge the slag produced during combustion to the outside through the guide frame, so that the lower end of the rotating rod is always within the receiving range of the guide frame and movable block, which facilitates the cleaning of slag. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall cross-sectional three-dimensional structure of this utility model;

[0018] Figure 3 This is a cross-sectional three-dimensional structural diagram of the fixing block system of this utility model;

[0019] Figure 4 For the present utility model Figure 2 Enlarged 3D structural diagram at point A.

[0020] In the diagram: 1. Box body; 11. Slide 1; 12. Discharge port; 13. L-shaped rod; 2. Movable window; 3. Movable structure; 31. Connecting rod; 32. Connecting plate; 33. Rotating rod; 34. Fixing block; 35. Slide 2; 36. Movable rod; 4. Wire brush; 5. Exhaust pipe; 6. Telescopic block; 61. Electric actuator; 7. Ignition device; 8. Fan; 9. Fixing plate; 91. Telescopic rod; 92. Spring; 93. Guide frame; 94. Movable block. Detailed Implementation

[0021] 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.

[0022] Example 1: Please refer to Figure 1 - Figure 3 A combustion performance testing chamber includes a chamber body 1 and a movable window 2 rotatably mounted on the side of the chamber body 1. A discharge port 12 is provided at the lower end of the chamber body 1. An ignition device 7 is installed inside the chamber body 1. A sliding groove 11 is provided on the surface of the chamber body 1. A movable structure 3 is installed inside the chamber body 1. The movable structure 3 includes a connecting rod 31 slidably mounted in the sliding groove 11. A connecting plate 32 is fixedly mounted at one end of the connecting rod 31. Rotating rods 33 are rotatably mounted at equal intervals between the inner walls of the two sides of the connecting plate 32. Movable rods 36 are fixedly mounted on both sides of one end of the connecting plate 32. A fixing block 34 is fixedly mounted on the inner wall of the chamber body 1. A second sliding groove 35 is provided on both sides of the fixing block 34. Two movable rods 36 are slidably connected in the two second sliding grooves 35 respectively. An L-shaped rod 13 is fixedly mounted on the upper end of the inner wall of the sliding groove 11. A wire brush 4 is fixedly mounted on the lower end of the L-shaped rod 13. When the connecting plate 32 moves, the wire brush 4 contacts the rotating rod 33.

[0023] In this embodiment: When using this device to test the combustion performance of materials, the material to be tested is first placed on the rotating rod 33 through the movable window 2, and the material to be tested is ignited by the ignition device 7 to conduct the combustion performance test. After the test is completed, the connecting rod 31 can be pulled out along the slide groove 11. The connecting rod 31 drives the connecting plate 32 and the rotating rod 33 to move outward. When the connecting plate 32 moves, it drives the movable rod 36 to slide along the slide groove 35. When the connecting plate 32 moves outward, the rotating rod 33 comes into contact with the wire brush 4. The wire brush 4 brushes off the slag remaining on the rotating rod 33, automatically completing the cleaning of the inside of the connecting plate 32. After cleaning, the connecting rod 31 can be pushed back into the slide groove 11. When using this combustion performance test box, the rotating rod 33 inside the connecting plate 32 can be cleaned by pulling the connecting rod 31, which facilitates the subsequent combustion performance test.

[0024] Example 2: This example is an improvement on Example 1. For details, please refer to [link / reference]. Figure 2 - Figure 4 An extension block 6 is fixedly installed inside the housing 1. An electric push rod 61 is fixedly installed between the inner wall of the movable end of the extension block 6 and the inner wall of the housing 1. An ignition device 7 is fixedly installed on the upper end of the movable end of the extension block 6. The ignition device 7 can be pushed outward to a designated position for ignition by the electric push rod 61.

[0025] A fixed plate 9 is fixedly installed at the lower end of the fixed block 34. Telescopic rods 91 are fixedly installed on both sides of the side wall of the fixed plate 9. A movable block 94 is fixedly installed at one end of the telescopic rods 91. Springs 92 are sleeved on the outer sides of the two telescopic rods 91. The two ends of the springs 92 are fixedly connected to the side wall of the fixed plate 9 and the side wall of the movable block 94, respectively. The springs 92 can pull the movable block 94 back to its original position after it moves.

[0026] A guide frame 93 is fixedly installed on the inner wall of the box 1. One side wall of the guide frame 93 is connected to the discharge port 12. The movable block 94 is movably installed inside the guide frame 93. The residue generated by combustion can be discharged outward through the guide frame 93.

[0027] The telescopic block 6 is installed at the lower end of the fixed block 34. When the telescopic block 6 extends, it contacts the side wall of the movable block 94. When the telescopic block 6 pushes out the ignition device 7, it can push the movable block 94.

[0028] A smoke exhaust pipe 5 is fixedly installed at the upper part of the interior of the housing 1. A fan 8 is fixedly installed at one end of the smoke exhaust pipe 5. The smoke generated by combustion can be directly discharged to the outside through the cooperation between the smoke exhaust pipe 5 and the fan 8.

[0029] In this embodiment: When using the device to perform a combustion performance test, the connecting rod 31 can be pulled to clean the rotating rod 33 while the material to be tested is placed on the inner side of the rotating rod 33. At this time, the connecting rod 31 can be pushed back to its original position. The electric push rod 61 pushes the movable end of the telescopic block 6 to push it towards the lower end of the test material. The movable end of the telescopic block 6 drives the ignition device 7 to move. During the movement of the telescopic block 6, it contacts the movable block 94 and pushes the movable block 94. At this time, the movable block 94 is pushed into the guide frame 93. After ignition is completed, the electric push rod 61 drives the ignition device 7 to move back to its original position. Under the action of the spring 92, the movable block 94 is automatically pulled back. The device is positioned in place and fits against the inner wall of the guide frame 93, ensuring that there is always a receiving structure at the lower end during the combustion performance test of the material. It receives the slag produced during combustion, and the smoke generated during combustion is directly discharged to the outside through the cooperation between the fan 8 and the exhaust pipe 5 at the upper end. The exhaust pipe 5 is designed to prevent smoke from filling the entire interior of the chamber 1, and to prevent unburned substances mixed in the smoke from adhering to the inner wall of the chamber after long-term operation, thus affecting the normal combustion performance test inside the chamber 1. This device can directly discharge the slag produced during combustion to the outside through the guide frame 93, ensuring that the lower end of the rotating rod 33 is always within the receiving range of the guide frame 93 and the movable block 94, which facilitates the cleaning of slag.

[0030] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A combustion performance testing chamber, comprising a chamber body (1) and a movable window (2) rotatably mounted on the side of the chamber body (1), wherein a discharge port (12) is provided at the lower end of the chamber body (1), and an ignition device (7) is installed inside the chamber body (1), characterized in that: The surface of the box (1) is provided with a sliding groove (11). The box (1) is equipped with a movable structure (3). The movable structure (3) includes a connecting rod (31) that is slidably installed in the sliding groove (11). A connecting plate (32) is fixedly installed at one end of the connecting rod (31). Rotating rods (33) are equidistantly installed between the inner walls of the two sides of the connecting plate (32). Movable rods (36) are fixedly installed on both sides of one end of the connecting plate (32). A fixing block (34) is fixedly installed on the inner wall of the box (1). A sliding groove (35) is provided on both sides of the fixing block (34). The two movable rods (36) are slidably connected in the two sliding grooves (35). An L-shaped rod (13) is fixedly installed at the upper end of the inner wall of the sliding groove (11). A wire brush (4) is fixedly installed at the lower end of the L-shaped rod (13). When the connecting plate (32) moves, the wire brush (4) contacts the rotating rod (33).

2. The combustion performance testing chamber according to claim 1, characterized in that: The box (1) is fixedly installed with a telescopic block (6). An electric push rod (61) is fixedly installed between the inner wall of the movable end of the telescopic block (6) and the inner wall of the box (1). The ignition device (7) is fixedly installed on the upper end of the movable end of the telescopic block (6).

3. The combustion performance testing chamber according to claim 2, characterized in that: A fixing plate (9) is fixedly installed at the lower end of the fixing block (34). Telescopic rods (91) are fixedly installed on both sides of the side wall of the fixing plate (9). A movable block (94) is fixedly installed at one end of each telescopic rod (91). A spring (92) is sleeved on the outer side of each of the two telescopic rods (91). The two ends of the spring (92) are fixedly connected to the side wall of the fixing plate (9) and the side wall of the movable block (94), respectively.

4. A combustion performance testing chamber according to claim 3, characterized in that: The inner wall of the box (1) is fixedly installed with a guide frame (93), one side wall of the guide frame (93) is connected to the discharge port (12), and the movable block (94) is movably installed in the guide frame (93).

5. A combustion performance testing chamber according to claim 4, characterized in that: The telescopic block (6) is installed at the lower end of the fixed block (34), and the telescopic block (6) contacts the side wall of the movable block (94) when it extends.

6. A combustion performance testing chamber according to claim 5, characterized in that: A smoke exhaust pipe (5) is fixedly installed at the upper part of the inside of the housing (1), and a fan (8) is fixedly installed at one end of the smoke exhaust pipe (5).

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