A cavity-dividing flame-retardant testing device for environment-friendly building materials

Abstract

The utility model discloses a kind of cavity of environmental protection type building material is divided and flame-retardant testing device, including test box, gas-collecting cavity, gas inlet adsorption box and cover plate, symmetrically arranged gas-collecting cavity is installed in test box top, gas inlet adsorption box is installed in test box inner lower part, water is used for being absorbed to the harmful gas of sinking in gas inlet adsorption box interior, symmetrically arranged cover plate slidingly is installed in test box front side.The utility model placing table in supporting assembly can play stabilizing support effect to environmental protection type building material to be tested, after pulling up press frame and placing material on placing table, spring restores elastic deformation will drive press frame to slide down along slide rail and guide rod, until press frame is closely attached material surface, realize the pressing fixation of material, avoid material displacement or dumping due to combustion in combustion test process, guarantee the stability of test process, and then ensure the accuracy of test result.

Description

Technical Field

[0001] This utility model relates to the field of cavity flame retardancy testing technology for environmentally friendly building materials, and specifically to a cavity flame retardancy testing device for environmentally friendly building materials. Background Technology

[0002] In the field of flame retardant performance testing of environmentally friendly building materials, most existing flame retardant testing devices are single-chamber structures, mainly consisting of a test chamber, a simple material placement structure, and an ignition component. During use, personnel place the environmentally friendly building material to be tested directly into the placement area inside the test chamber, then ignite the material using the ignition component, observing the combustion state to assess its flame retardant performance. Some devices have ventilation openings on the side or top of the test chamber to exhaust the gases produced during combustion and prevent excessive pressure buildup inside the chamber.

[0003] However, existing technologies have significant shortcomings. On the one hand, the material fixing structures of existing devices are rudimentary, mostly relying solely on the flat support of the placement area, lacking specialized pressing and fixing components. When the material deforms due to heat or experiences slight shaking during combustion, it is prone to displacement or even tipping over, altering the contact position between the flame and the material. This makes it impossible to accurately simulate the actual combustion conditions of the material, thus affecting the accuracy of the test results and failing to meet the demand for precise testing of the flame-retardant performance of environmentally friendly building materials. On the other hand, while some devices attempt to add simple fixing components, the positions of these components cannot be flexibly adjusted, making it difficult to adapt to environmentally friendly building materials of different thicknesses and specifications. Either the fixing is too loose, failing to provide stability, or it is too tight, causing damage to the material under pressure, further limiting the applicability of the device. Furthermore, existing single-chamber testing devices can only test one material sample at a time. If it is necessary to compare the flame-retardant performance of different materials or different batches of the same material, multiple tests must be repeated, which not only consumes a lot of time but is also prone to inconsistencies in testing conditions due to changes in the external environment during the testing intervals, affecting the reliability of data comparison. Utility Model Content

[0004] The problem this invention aims to solve is to provide a cavity-type flame-retardant testing device for environmentally friendly building materials. The placement platform in the support assembly of this invention can provide stable support for the environmentally friendly building materials to be tested. After the pressure frame is pulled upward and the material is placed on the placement platform, the spring recovers its elastic deformation and drives the pressure frame to slide downward along the slide rail and guide rod until the pressure frame is tightly attached to the surface of the material, thereby pressing and fixing the material. This prevents the material from shifting or tipping over during the combustion test, ensuring the stability of the test process and thus ensuring the accuracy of the test results.

[0005] The technical solution provided by this utility model to solve the above problems is as follows: a cavity flame retardant testing device for environmentally friendly building materials, including a test chamber, a gas-gathering chamber, an air-inlet adsorption chamber, and a cover plate. The symmetrically arranged gas-gathering chambers are installed on the top of the test chamber, and the air-inlet adsorption chambers are installed in the lower part of the test chamber. The air-inlet adsorption chambers are filled with water to adsorb the sinking harmful gases. The symmetrically arranged cover plates are slidably installed on the front side of the test chamber. The device also includes a support component and an ignition component. The support component is used to support the test item, and the ignition component is used to ignite the test item.

[0006] More preferably, the test chamber is divided into two cavities.

[0007] More preferably, air holes are evenly distributed on both the top and bottom sides of the test chamber.

[0008] More preferably, the support assembly includes a placement platform, slide rails, pressure frame, guide rods, and springs. The symmetrically arranged placement platforms are installed inside the test chamber, the symmetrically arranged slide rails are respectively installed in two cavities of the test chamber, the symmetrically arranged pressure frame is slidably connected between the corresponding slide rails, the symmetrically arranged guide rods are respectively fixed to two cavities of the test chamber, and the springs connect the pressure frame and the test chamber.

[0009] More preferably, the ignition assembly includes a fixing clamp, a gas cylinder, a gas supply pipe, a mounting component, and a flame nozzle. The symmetrically arranged gas cylinders are fixed to the top of the test chamber by the fixing clamp, and the symmetrically arranged mounting components are installed on the top of the corresponding pressure frame. Each mounting component is equipped with a flame nozzle, and each mounting component is connected to the corresponding gas cylinder by a gas supply pipe.

[0010] More preferably, the gas supply pipe is retractable.

[0011] Compared with the prior art, the advantages of this utility model are: the placement platform in the support assembly of this utility model can provide stable support for the environmentally friendly building materials to be tested. After the pressure frame is pulled upward and the material is placed on the placement platform, the spring restores its elastic deformation and drives the pressure frame to slide downward along the slide rail and guide rod until the pressure frame is tightly attached to the surface of the material, thereby pressing and fixing the material, preventing the material from shifting or tipping over due to combustion during the combustion test, ensuring the stability of the test process, and thus ensuring the accuracy of the test results.

[0012] The gas cylinder is securely connected to the top of the test chamber by a fixing clamp, which prevents the gas cylinder from shifting during the test. The gas can be stably delivered to the burner on the mounting piece through the gas pipe, so as to achieve accurate ignition of the material to be tested. The gas pipe is also telescopic, which can flexibly adapt to the adjustment needs of different positions of the pressure frame, avoiding damage to the gas pipe or affecting the gas delivery due to the movement of the pressure frame, ensuring a smooth ignition process and ensuring the smooth progress of the test.

[0013] It can effectively treat the gases generated during testing, reducing environmental pollution and health hazards. The gases produced by material combustion will rise, and the gas collection chamber at the top of the test chamber can collect these gases, preventing them from spreading randomly and facilitating the subsequent collection and detection of parameters such as the composition and concentration of the combustion gases. At the same time, some of the denser harmful gases will sink downwards and enter the air intake adsorption chamber at the bottom of the test chamber. The air intake adsorption chamber is filled with water, which can adsorb these sinking harmful gases, reducing the emission of harmful gases into the external environment and reducing the pollution to the environment and the impact on the health of workers. Attached Figure Description

[0014] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

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

[0016] Figure 2 This is a partial three-dimensional structural diagram of the present invention.

[0017] Figure 3 This is a partial cross-sectional three-dimensional structural schematic diagram of the present invention.

[0018] Attached diagram labels: 1. Test chamber; 2. Gas collection chamber; 3. Gas inlet adsorption chamber; 4. Cover plate; 5. Placement platform; 6. Slide rail; 7. Pressure frame; 8. Guide rod; 9. Spring; 10. Fixing clamp; 11. Gas cylinder; 12. Gas supply pipe; 13. Mounting parts; 14. Flame nozzle. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. In the description of the present utility model, it should be noted that the terms "first," "second," etc., are used for descriptive purposes only and do not specifically refer to any order or sequence, nor are they intended to limit the present utility model. They are merely used to distinguish components or operations described with the same technical terms, and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. The term "comprising" and any variations thereof in the specification, claims, and accompanying drawings of the present utility model are intended to cover non-exclusive inclusion.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; or internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] Furthermore, it should be understood in the description of this utility model that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0022] Example: As shown in the attached figure, a cavity-based flame retardant testing device for environmentally friendly building materials includes a test chamber 1, a gas-gathering chamber 2, an air inlet adsorption chamber 3, and a cover plate 4. The symmetrically arranged gas-gathering chamber 2 is installed on the top of the test chamber 1 and is used to gather the gas generated during the flame retardant test. The test chamber 1 is divided into two cavities, which can simultaneously conduct separate controlled flame retardant tests on two environmentally friendly building materials. Air holes are evenly opened on both the upper and lower sides of the test chamber 1. The air inlet adsorption chamber 3 is installed in the lower part of the test chamber 1 and is filled with water to adsorb the sinking harmful gases. The symmetrically arranged cover plate 4 is slidably installed on the front side of the test chamber 1. The device also includes a support assembly and an ignition assembly. The support assembly is used to support the test item, and the ignition assembly is used to ignite the test item.

[0023] In this embodiment, the support assembly specifically includes a placement platform 5, a slide rail 6, a pressure frame 7, a guide rod 8, and a spring 9. The symmetrically arranged placement platform 5 is installed inside the test chamber 1 to support the environmentally friendly building material to be tested. The symmetrically arranged slide rails 6 are respectively installed in the two cavities of the test chamber 1. The symmetrically arranged pressure frame 7 is slidably connected between the corresponding slide rails 6 and is used to press the environmentally friendly building material to be tested. The symmetrically arranged guide rods 8 are respectively fixed to the two cavities of the test chamber 1. The spring 9 connects the pressure frame 7 and the test chamber 1. Furthermore, the ignition assembly includes a fixing clamp 10, a gas cylinder 11, a gas supply pipe 12, a mounting component 13, and a flame nozzle 14. The symmetrically arranged gas cylinders 11 are fixed to the top of the test chamber 1 by the fixing clamp 10. The symmetrically arranged mounting components 13 are installed on the top of the corresponding pressure frame 7. Each mounting component 13 is equipped with a flame nozzle 14 for igniting the environmentally friendly building material to be tested. Each mounting component 13 is connected to the corresponding gas cylinder 11 by a gas supply pipe 12, which is retractable.

[0024] When using the cavity-type flame-retardant testing device for this environmentally friendly building material, first slide the cover plate 4 on the front side of the test chamber 1 to open the cover plate 4. Then, according to the specifications of the environmentally friendly building material to be tested, pull the pressure frame 7 upward. The pressure frame 7 slides along the slide rail 6, and at the same time, the pressure frame 7 moves on the guide rod 8 and stretches the spring 9, causing the spring 9 to undergo elastic deformation. Place the environmentally friendly building material to be tested on the placement platform 5 corresponding to the two cavities inside the test chamber 1. The placement platform 5 provides stable support for the material. Then, slowly release the pressure frame 7. The spring 9 returns to its elastic deformation, causing the pressure frame 7 to slide downward along the slide rail 6 and the guide rod 8 until the pressure frame 7 is tightly attached to the surface of the material to be tested, thereby pressing and fixing the material to prevent displacement or tipping due to combustion during the test, ensuring the stability and accuracy of the test process.

[0025] After securing the materials, close the cover plate 4 and open the valve of the gas cylinder 11. The gas in the gas cylinder 11 is delivered to the burner nozzle 14 on the mounting bracket 13 through the gas delivery pipe 12. The extendable nature of the gas delivery pipe 12 can adapt to the adjustment needs of different positions of the pressure frame 7, preventing damage to the gas delivery pipe 12 or affecting the gas delivery due to the movement of the pressure frame 7. Ignite the burner nozzle 14, which ignites the material to be tested, and the flame retardant test begins. Since the test chamber 1 is divided into two chambers, it can simultaneously conduct separate controlled flame retardant tests on two different environmentally friendly building materials or two samples of the same material, eliminating the need for multiple separate tests, effectively improving testing efficiency, and reducing the interference of external environmental factors on the test results of different samples, facilitating comparative analysis of test data.

[0026] During the test, the gases produced by the combustion of the material will flow upward. The gas collection chamber 2 at the top of the test chamber 1 will collect these gases to prevent them from spreading randomly, which will facilitate the subsequent collection and detection of parameters such as the composition and concentration of the combustion gases. At the same time, some of the denser harmful gases will sink downward and enter the air intake adsorption chamber 3 at the bottom of the test chamber 1. The air intake adsorption chamber 3 is filled with water, which can adsorb these sinking harmful gases, reducing the emission of harmful gases into the external environment and reducing the pollution to the environment and the impact on the health of the staff.

[0027] After the test is completed, close the valve of gas cylinder 11 and stop the gas supply from the flame nozzle 14. Once the temperature inside the test chamber 1 has dropped to a safe range and the gas has fully settled and absorbed, open the cover 4, pull the pressure frame 7 again, and remove the tested material, completing the entire flame retardant testing process. Throughout the process, the support components stably fix the test material, the ignition components accurately ignite the material, the chamber design improves testing efficiency and data comparability, the gas handling structure reduces pollution and safety hazards, and the coordinated action of all components ensures that the flame retardant test is conducted efficiently, accurately, and safely.

[0028] The above description only illustrates the preferred embodiment of this utility model and should not be construed as limiting the scope of the claims. This utility model is not limited to the above embodiments, and variations in its specific structure are permitted. All changes made within the scope of the independent claims of this utility model are also within the scope of protection of this utility model.

Claims

1. A cavity-type flame retardant testing device for environmentally friendly building materials, comprising a test chamber (1), a gas-gathering chamber (2), an air-inlet adsorption chamber (3), and a cover plate (4), wherein the symmetrically arranged gas-gathering chambers (2) are installed on the top of the test chamber (1), the air-inlet adsorption chamber (3) is installed in the lower part of the test chamber (1), the air-inlet adsorption chamber (3) is filled with water for adsorbing the sinking harmful gases, and the symmetrically arranged cover plates (4) are slidably installed on the front side of the test chamber (1), characterized in that, It also includes a support component and an ignition component. The support component is used to support the test item, and the ignition component is used to ignite the test item.

2. The cavity-type flame retardant testing device for environmentally friendly building materials according to claim 1, characterized in that, The test chamber (1) is divided into two cavities.

3. The cavity-type flame retardant testing device for environmentally friendly building materials according to claim 1, characterized in that, The test chamber (1) has air holes evenly distributed on both the top and bottom sides.

4. The cavity-type flame retardant testing device for environmentally friendly building materials according to claim 1, characterized in that, The support components include a placement platform (5), a slide rail (6), a pressure frame (7), a guide rod (8), and a spring (9). The symmetrically arranged placement platform (5) is installed inside the test chamber (1). The symmetrically arranged slide rails (6) are respectively installed in the two cavities of the test chamber (1). The symmetrically arranged pressure frame (7) is slidably connected between the corresponding slide rails (6). The symmetrically arranged guide rods (8) are respectively fixed in the two cavities of the test chamber (1). The spring (9) is connected between the pressure frame (7) and the test chamber (1).

5. The cavity-type flame retardant testing device for environmentally friendly building materials according to claim 4, characterized in that, The ignition assembly includes a fixing clamp (10), a gas cylinder (11), a gas supply pipe (12), a mounting component (13), and a flame nozzle (14). The symmetrically arranged gas cylinders (11) are fixed to the top of the test chamber (1) by the fixing clamp (10). The symmetrically arranged mounting components (13) are installed on the top of the corresponding pressure frame (7). Each mounting component (13) is equipped with a flame nozzle (14), and each mounting component (13) is connected to the corresponding gas cylinder (11) by a gas supply pipe (12).

6. The cavity-type flame retardant testing device for environmentally friendly building materials according to claim 5, characterized in that, The gas supply pipe (12) is retractable.

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