Fireproof material performance detection device

Abstract

The invention belongs to the technical field of fireproof material fire resistance tests, and particularly provides a fireproof material performance detection device which comprises a base, an overturning assembly, a clamping assembly and a combustion assembly, the clamping assembly is arranged on the overturning assembly, the combustion assembly is located on one side of the overturning assembly, and the combustion assembly sprays flames to burn a test piece to conduct a fire resistance test. The multiple clamping assemblies are arranged, multiple test pieces can be clamped at the same time, the combustion assemblies correspond to the clamping assemblies in a one-to-one mode, and fire resistance testing can be conducted on the multiple test pieces at the same time when a contrast test is conducted. In the test period, the combustion assembly is fixed, and the detection efficiency and the accuracy of the detection result can be guaranteed. And the overturning assembly drives the clamping assembly and the test piece to overturn between a horizontal state and a vertical state. And during testing, the overturning table is in a vertical state, so that a tester can conveniently check the combustion conditions of different test pieces in real time beside, and a video recording device can conveniently shoot and record videos on one side to reserve test data.

Description

Technical Field

[0001] This application belongs to the field of fire resistance testing technology for fire-resistant materials, specifically a fire-resistant material performance testing device. Background Technology

[0002] Fire-resistant materials are a general term for fire-resistant products such as fire-retardant coatings, fire-resistant boards, fire-resistant cloth, and fire blankets. They can be used in building or pipeline construction and are a passive fire prevention measure. The function of fire-resistant materials is to prevent the spread of fire in the event of a fire, buy valuable time for people to escape and extinguish the fire, and reduce casualties and property losses.

[0003] To enable R&D personnel to understand the performance of fire-resistant materials, fire resistance testing is necessary. Testing typically evaluates the product's fire resistance performance from three aspects: fire resistance duration, fire insulation, and fire integrity. For decorative fire-retardant coatings, the coating is applied to a combustible substrate, and the coated side is burned with an open flame. Parameters such as flame distance and burning time are varied to test the fire resistance performance. After the test, the surface integrity of the specimen is examined. Current testing methods involve directly burning the specimen with a handheld flame gun. Each tester can only test one specimen at a time. When conducting comparative tests on multiple products and test parameters, manual testing is time-consuming, and the handheld flame gun is prone to shaking, which can introduce errors into the test results. Summary of the Invention

[0004] Based on the above-mentioned technical problems, this application provides a fireproof material performance testing device to solve the technical problems of the existing handheld flame gun testing method, which can only test one specimen at a time, resulting in low efficiency and large errors.

[0005] To achieve the above objectives, the technical solution adopted in this application is: to provide a fire-resistant material performance testing device, comprising: Base, fixed installation; A flipping assembly includes a flipping platform and a first driving member. The flipping platform is rotatably connected to the base about a horizontal axis. The flipping platform has a horizontal state and a vertical state. The first driving member is disposed on the base and is used to drive the flipping platform to switch between the horizontal state and the vertical state. Multiple clamping assemblies are sequentially arranged on the tilting table along the rotation axis of the tilting table, and each clamping assembly has a clamping space for accommodating the specimen; and Multiple combustion components are spaced apart on the base along the axis of the flipping table. Each combustion component corresponds to a clamping component. When the flipping table is in a vertical state, the flame jet end of the combustion component faces the specimen.

[0006] In one possible implementation, the combustion assembly includes: A base is provided on the base and a first slide rail is provided in the horizontal direction. The length direction of the first slide rail is perpendicular to the rotation axis direction of the flipping table. The slide table slides in conjunction with the first slide rail; and A burner, located on the slide, has the flame jet end.

[0007] In one possible implementation, the fire-resistant material performance testing device further includes a translation component, which comprises: The second slide rail is provided on the tilting table and is parallel to the rotation axis of the tilting table; A scissor lift mechanism is provided along the length of the second slide rail, and the scissor lift mechanism is slidably engaged with the second slide rail. The clamping assemblies are correspondingly located on the hinge shafts of the scissor lift mechanism. The second driving component is disposed on the second slide rail and is used to drive the scissor mechanism to move linearly along the second slide rail.

[0008] In one possible implementation, the clamping assembly is defined to have an installation position and a detection position, and a plurality of the test pieces are disposed on the clamping assembly in a one-to-one correspondence; When in the installation position, the plurality of clamping components are sequentially connected along the length of the second slide rail so that two adjacent specimens fit together. When in the detection position, the plurality of clamping components are spaced apart so that the combustion component and the specimen correspond one-to-one in the horizontal direction perpendicular to the rotation axis of the flipping table.

[0009] In one possible implementation, the translation component further includes two limit switches, the detection ends of which correspond to the installation position and the detection position of the scissor mechanism, respectively, and the limit switches are communicatively connected to the second drive component.

[0010] In one possible implementation, the clamping component includes: A base plate is connected to the tilting table, and the base plate has a sliding groove arranged in a direction perpendicular to the rotation axis of the tilting table; The first clamping plate is fixedly disposed on the base plate; The second clamping plate slides in conjunction with the sliding groove, forming the clamping space between the second clamping plate and the first clamping plate; the first clamping plate and the second clamping plate respectively have slots on their sides adjacent to the specimen for holding the side plate of the specimen; and An elastic element is connected between the first clamping plate and the second clamping plate.

[0011] In one possible implementation, the top of the first clamping plate and the second clamping plate are respectively provided with clamping grooves, the clamping grooves extend along the rotation axis of the flipping table and penetrate the first clamping plate or the second clamping plate; The clamping assembly further includes a first partition and a second partition. The first partition is detachably accommodated in the clamping groove, and the second partition is detachably disposed between two adjacent bottom plates.

[0012] In one possible implementation, the clamping component further includes: A reversing rod is located on the side of the second clamping plate away from the first clamping plate. The reversing rod is a round rod and is arranged parallel to the rotation axis of the tilting table. Multiple locking screws are respectively disposed on one side of the clamping groove of the first clamping plate or the second clamping plate. The screw end of the locking screw is accommodated in the clamping groove, and the locking screw is threadedly engaged with the side wall of the corresponding clamping groove.

[0013] In one possible implementation, a temperature sensor is provided on the base plate, and the detection end of the temperature sensor is used to abut against the side of the specimen away from the combustion assembly.

[0014] In one possible implementation, the fire-resistant material performance testing device further includes a fire extinguishing tray, which is disposed between the combustion assembly and the tilting platform, and is used to store fire extinguishing materials.

[0015] Compared with existing technologies, the beneficial effects of the fire-resistant material performance testing device provided in this application are: The fire-resistant material performance testing device provided in this application includes a base, a tilting assembly, a clamping assembly, and a combustion assembly. The clamping assembly is mounted on the tilting assembly, and the combustion assembly is located on one side of the tilting assembly. During testing, the tilting table is first kept horizontal by a first driving component to facilitate fixing the fire-resistant product to be tested (i.e., the specimen) onto the clamping assembly. After the specimen is fixed, the first driving component is controlled to rotate the tilting table and clamping assembly to a vertical position, with the test surface of the specimen facing the combustion assembly. The combustion assembly emits flames to burn the specimen, thus conducting a fire resistance test.

[0016] This application features multiple clamping components, enabling simultaneous clamping of multiple specimens. Each combustion component corresponds one-to-one with a clamping component, allowing for simultaneous fire resistance testing of multiple specimens during control experiments. During testing, the combustion components remain stationary, ensuring both testing efficiency and accuracy of results.

[0017] In this application, the flipping assembly can rotate the clamping assembly and the specimen between horizontal and vertical positions. When clamping the specimen, the flipping table is horizontal, facilitating the tester's installation of the specimen onto the clamping assembly. Furthermore, when testing fire-retardant coatings, since the coating needs to be applied to a combustible substrate and requires a period of drying and curing before testing, the flipping table must remain horizontal during this period to prevent the incompletely cured coating from flowing and affecting thickness uniformity. During testing, the flipping table is vertical to allow the tester to observe the combustion of different specimens in real time and to facilitate video recording from one side, preserving the test data. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the clamping component in the fireproof material performance testing device provided in this application embodiment when it is in the installation position; Figure 2 A schematic diagram of the structure of the fireproof material performance testing device provided in this application when the clamping component is in the testing position and a test piece is installed; Figure 3 This is a schematic diagram of the structure of the fireproof material performance testing device provided in this application when the tilting table is in a vertical position. Figure 4 This is a schematic diagram of the structure of a single combustion component; Figure 5 This is a structural diagram of the flipping component and the clamping component; Figure 6 A schematic diagram of the structure of the fireproof material performance testing device provided in this application embodiment when the clamping component is in the installation position and the test piece, the first partition, and the second partition are installed; Figure 7 for Figure 6 Enlarged view of part A in the middle; Figure 8 This is a schematic diagram of the fire-resistant material performance testing device provided in the embodiments of this application after the clamping components are hidden. Figure 9 This is a structural diagram of the clamping assembly during the installation of fireproof cloth. Figure 10 A top-view structural diagram of the fireproof material performance testing device provided in an embodiment of this application. Explanation of reference numerals in the attached figures: 10. Base; 20. Tilting assembly; 21. Tilting table; 22. First drive component; 30. Clamping assembly; 31. Base plate; 32. First clamping plate; 321. Clamping groove; 33. Second clamping plate; 331. Slot; 34. Elastic component; 35. First partition; 36. Second partition; 37. Reversing rod; 38. Locking screw; 39. Temperature sensor; 40. Combustion assembly; 41. Base; 411. First slide rail; 42. Slide table; 43. Burner; 50. Translation assembly; 51. Second slide rail; 52. Scissor mechanism; 521. Hinge shaft; 53. Second drive component; 54. Limit switch; 60. Fire extinguishing tray; 70. Specimen; 80. Fireproof cloth. Detailed Implementation

[0020] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0021] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0022] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "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 application 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 application.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0025] Please refer to the following: Figures 1 to 10The following describes the fireproof material performance testing device provided in the embodiments of this application.

[0026] Please see Figures 1 to 3 ,as well as Figure 10 This application provides a fire-resistant material performance testing device, including a base 10, a flipping component 20, a clamping component 30, and a combustion component 40.

[0027] The base 10 is used to provide stable support for the various components installed on it. The base 10 is fixed to the ground and can be made of steel, aluminum alloy, concrete, etc., as long as it can provide stable support.

[0028] The flipping assembly 20 includes a flipping table 21 and a first driving member 22. The flipping table 21 is rotatably connected to the base 10 about a horizontal axis, and the flipping table 21 can rotate at least 90° relative to the base 10. Depending on the usage, the flipping table 21 has a horizontal state and a vertical state. The first driving member 22 is located on the base 10 and is used to drive the flipping table 21 to switch between the horizontal and vertical states. In the horizontal state, operations such as clamping and removing the specimen 70, applying fire-retardant coating to the substrate surface, and waiting for the fire-retardant coating to dry naturally can be performed. In the vertical state, it is used to conduct fire resistance tests on the specimen 70, and the testing process can be observed or photographed from the side.

[0029] Multiple clamping assemblies 30 are sequentially arranged on the tilting table 21 along the rotation axis of the tilting table 21. Each clamping assembly 30 has a clamping space for accommodating the specimen 70. Considering that the specimen 70 is usually plate-shaped, the clamping assemblies 30 can be directly selected from commercially available mechanical clamps capable of clamping plates. Two, three, or more clamping assemblies 30 can be provided as needed, depending on the number of specimens 70 to be tested.

[0030] Multiple combustion components 40 are spaced apart on the base 10 along the axis of the tilting table 21. Each combustion component 40 corresponds to a clamping component 30. When the tilting table 21 is in a vertical state, the flame jet end of the combustion component 40 faces the test piece 70. The combustion component 40 can be a commercially available oil or gas type flame burner 43, using external natural gas or liquefied petroleum gas as energy, as long as it can produce a stable flame.

[0031] It should be noted that, for ease of real-time observation of the testing process, the specimen 70 is upright during testing, and the flame direction should be perpendicular to the surface of the specimen 70, i.e., the flame needs to be horizontal. Therefore, when selecting the burner 43, a flat flame type burner 43 currently available on the market should be chosen. Multiple burners 43 should have the same model number to eliminate errors caused by differences in flame.

[0032] The testing device provided in this application embodiment can be used to conduct fire resistance tests on fire-resistant materials such as fireproof boards and fire-retardant coatings (which need to be evenly applied to combustible substrates such as wood panels). It is suitable for product research and development testing, external performance demonstrations, and quality spot checks during product manufacturing. It can be used to test the fire resistance performance of the same product under different flame distances and burning durations. It can also be used to conduct comparative tests on multiple products of different specifications (such as different coating thicknesses and different fire-resistant materials) simultaneously to identify the product with superior fire resistance performance.

[0033] Compared with the prior art, the beneficial effects of the fire-resistant material performance testing device provided in this application embodiment are: The fire-resistant material performance testing device provided in this application includes a base 10, a flipping assembly 20, a clamping assembly 30, and a combustion assembly 40. The clamping assembly 30 is mounted on the flipping assembly 20, and the combustion assembly 40 is located on one side of the flipping assembly 20. During testing, the flipping table 21 is first kept horizontal by the first driving component 22 to facilitate fixing the fire-resistant product to be tested (i.e., the test specimen 70) onto the clamping assembly 30. After the test specimen 70 is fixed, the first driving component 22 is controlled to rotate the flipping table 21 and the clamping assembly 30 to a vertical position, with the test surface of the test specimen 70 facing the combustion assembly 40. The combustion assembly 40 sprays flames to burn the test specimen 70, thus conducting a fire resistance test.

[0034] This embodiment of the application includes multiple clamping components 30, capable of simultaneously clamping multiple specimens 70. A combustion component 40 corresponds one-to-one with each clamping component 30, allowing for simultaneous fire resistance testing of multiple specimens 70 during control experiments. During testing, the combustion component 40 remains stationary, ensuring both testing efficiency and the accuracy of the results.

[0035] In this embodiment, the flipping component 20 can rotate the clamping component 30 and the specimen 70 between horizontal and vertical states. When clamping the specimen 70, the flipping table 21 is in a horizontal state, making it convenient for the tester to install the specimen 70 onto the clamping component 30. Furthermore, when testing fire-retardant coatings, since the fire-retardant coating needs to be applied to a combustible substrate and can only be tested after a period of drying and curing, the flipping table 21 needs to remain horizontal during this period to avoid the incompletely cured fire-retardant coating flowing and affecting the uniformity of thickness. During testing, the flipping table 21 is in a vertical state to facilitate the tester to observe the burning status of different specimens 70 in real time, and also to facilitate video recording by a recording device to preserve test data.

[0036] The tilting table 21 is driven to tilt via a first driving component 22. The first driving component 22 can be a motor that is connected to the rotating shaft of the tilting table 21 through a transmission component such as gears. Alternatively, the first driving component 22 can also be an electric telescopic rod, with both ends of the electric telescopic rod hinged to the base 10 and the tilting table 21, respectively. Both the electric telescopic rod and the motor are connected to a power source for operation. Electric telescopic rods or motors are common power components on mechanical equipment, and their specific structures and installation methods will not be described in detail.

[0037] Please see Figure 4 The combustion assembly 40 includes a base 41, a slide 42, and a burner 43. In actual use, it may be necessary to adjust the horizontal distance between the burner 43 and the specimen 70 to test the fire resistance and fire integrity of the specimen 70 made of the same material under different flame distances.

[0038] To adjust the horizontal distance between the burner 43 and the specimen 70, the base 41 is fixedly mounted on the base 10 and a first slide rail 411 is provided in the horizontal direction. The length direction of the first slide rail 411 is perpendicular to the rotation axis of the flip table 21. The slide table 42 is slidably engaged with the first slide rail 411. The burner 43 is mounted on the slide table 42 and has a flame jet end. The burner 43 is a flat flame type burner 43, which can use existing fuels (such as natural gas, liquefied petroleum gas, etc.) as energy sources to produce a stable, horizontal flame.

[0039] The slide table 42 can move along the first slide rail 411 of the base 41. The movement of the slide table 42 can be achieved by existing mechanical structures that can realize linear reciprocating movement, such as a screw-slider mechanism or a gear and rack mechanism. When a screw-slider mechanism is used, a screw is rotatably installed on the base 41, and the slide table 42 is threadedly engaged with the screw. One end of the screw is connected to a handwheel. The distance between the burner 43 and the specimen 70 can be adjusted by rotating the handwheel in the forward or reverse direction.

[0040] It is understood that the shape and structure of the slide 42 and the base 41, as well as the driving method of the slide 42, are all existing technologies and will not be explained in detail here. Those skilled in the art can understand and implement them.

[0041] When the test specimen 70 is a fireproof board, it should be cut to a uniform size in advance. When the fireproof material to be tested is a fireproof coating, a combustible substrate (such as a wooden board) needs to be cut in advance. After the substrate is clamped into the clamping assembly 30, a fireproof coating of a certain thickness is applied to the substrate. The application method can be spraying with a spray gun or using a roller (also known as a roller) to form a fireproof coating of uniform thickness on the substrate surface.

[0042] Fire-retardant coating can be applied in one coat. If the coating is thick, it should be applied in multiple coats, with each coat drying before applying the next. To prevent the fire-retardant coating from flowing, the tilting table 21 should be kept horizontal during application. Only after the fire-retardant coating has dried and cured can the tilting table 21 be switched to a vertical position for fire resistance testing.

[0043] The substrate made of fireproof board or combustible material is usually rectangular or square in shape for easy clamping and fixing. The length and width of the specimen 70 or substrate can be between 25-40 cm, and the thickness can be selected according to the test requirements.

[0044] Since multiple specimens 70 will undergo fire resistance testing simultaneously during the experiment, and multiple burners 43 will ignite and burn at the same time, in order to prevent interference between adjacent burners 43, an appropriate distance, such as 30-50 cm, needs to be maintained between adjacent burners 43 and specimens 70.

[0045] When testing the fire resistance of the same fire-retardant coating (with the same material ratio and coating thickness) at different flame distances, in order to facilitate the spraying of the fire-retardant coating, multiple test specimens 70 can be spliced ​​together into a long strip, and then a roller or spray gun can be moved along the length of the spliced ​​test specimens 70 to complete the spraying of the fire-retardant coating.

[0046] To achieve the above functions, the specific structure adopted in this application is as follows: Please refer to Figure 1 , Figure 2 , Figure 5 , Figure 8 and Figure 10 The fire-resistant material performance testing device also includes a translation component 50, which includes a second slide rail 51, a scissor mechanism 52, and a second drive component 53. The second slide rail 51 is located on the tilting table 21 and is parallel to the rotation axis of the tilting table 21; the scissor mechanism 52 is arranged along the length direction of the second slide rail 51 and is slidably engaged with the second slide rail 51; the clamping components 30 are correspondingly located on the hinge shafts 521 of the scissor mechanism 52; the second drive component 53 is located on the second slide rail 51 and is used to drive the scissor mechanism 52 to move linearly along the second slide rail 51.

[0047] like Figure 8 As shown, in a specific embodiment, the scissor mechanism 52 includes four hinge shafts 521, and each hinge shaft 521 is provided with a clamping component 30. The hinge shaft 521 located at the bottom of the figure is fixedly installed, while the other three hinge shafts 521 are slidably engaged with the second slide rail 51, which can drive the corresponding clamping component 30 to move.

[0048] Please see Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 10 The clamping assembly 30 is defined to have an installation position and a detection position, and multiple test pieces 70 are respectively arranged on the clamping assembly 30. When in the installation position, the multiple clamping assemblies 30 are sequentially connected in the length direction of the second slide rail 51 so that two adjacent test pieces 70 are in close contact with each other. When in the detection position, the multiple clamping assemblies 30 are spaced apart from each other so that the combustion assembly 40 and the test piece 70 correspond to each other in the horizontal direction perpendicular to the rotation axis of the flipping table 21.

[0049] In this embodiment, the clamping assembly 30 is mounted on the hinge shaft 521 of the scissor mechanism 52. The scissor mechanism 52 can move along the second slide rail 51. The scissor mechanism 52 consists of multiple connecting rods. The middle parts of two opposing connecting rods are rotatably engaged through the hinge shaft 521. The multiple connecting rods along the length direction of the second slide rail 51 are sequentially hinged end to end. By simply rotating the connecting rod at the very end, the scissor mechanism 52 can be controlled to extend or retract along the length direction of the second slide rail 51, allowing the clamping assembly 30 to quickly switch between the installation position and the detection position. Compared with conventional screw-slider mechanisms and gear-rack mechanisms, the second driving member 53 of the scissor mechanism 52 has a smaller movement range and faster operation.

[0050] To achieve accurate control over the extension length of the scissor lift mechanism 52, please refer to [link / reference needed]. Figure 1 , Figure 2 , Figure 8 and Figure 10 In some possible embodiments, the translation component 50 also includes two limit switches 54. The detection ends of the two limit switches 54 correspond to the installation position and detection position of the scissor mechanism 52, respectively. The limit switches 54 are communicatively connected to the second drive member 53. When the corresponding connecting rod rotates to abut against the limit switch 54, the limit switch 54 generates a signal and sends the signal to the second drive member 53, and the second drive member 53 stops operating.

[0051] Limit switch 54 can be any existing product on the market. It can generate a sensing signal when touched, and there are no restrictions on its specific specifications and models.

[0052] The second driving component 53 is used to drive the scissor lift mechanism 52 to extend or retract. Specifically, the second driving component 53 is a drive motor, and the motor shaft of the drive motor is connected to one of the connecting rods of the scissor lift mechanism 52 through a connecting member, enabling it to drive the connecting rod to rotate around... Figure 8 The arc-shaped groove shown rotates, thereby driving the scissor mechanism 52 to extend and retract.

[0053] Please see Figure 5 , Figure 6 and Figure 9In some possible embodiments, the clamping assembly 30 includes a base plate 31, a first clamping plate 32, a second clamping plate 33, and an elastic element 34. The base plate 31 is connected to the tilting table 21, and the base plate 31 has a sliding groove arranged in a direction perpendicular to the rotation axis of the tilting table 21; the first clamping plate 32 is fixedly disposed on the base plate 31; the second clamping plate 33 is slidably engaged with the sliding groove, and a clamping space is formed between the second clamping plate 33 and the first clamping plate 32; the first clamping plate 32 and the second clamping plate 33 respectively have a slot 331 for clamping the side plate of the test piece 70 on the side adjacent to the test piece 70; the elastic element 34 is connected between the first clamping plate 32 and the second clamping plate 33, and the elastic element 34 can specifically be a spring.

[0054] The two ends of the elastic member 34 are fixedly connected to the first clamping plate 32 and the second clamping plate 33 respectively. After the specimen 70 is clamped, the elastic member 34 is stretched and the elastic member 34 applies a tension to the second clamping plate 33, causing the second clamping plate 33 to tend to move closer to the first clamping plate 32. The first clamping plate 32 and the second clamping plate 33 can firmly clamp the specimen 70.

[0055] In order to measure the temperature of the test specimen 70 away from the burner 43, a temperature sensor 39 is provided on the base plate 31. The detection end of the temperature sensor 39 is used to abut against the side of the test specimen 70 away from the combustion assembly 40. The temperature sensor 39 can be a thermocouple sensor with a large temperature measurement range.

[0056] As needed, the temperature sensor 39 can be designed to move along the thickness direction of the specimen 70 to ensure that the detection end of the temperature sensor 39 can be adapted to specimens 70 of different thicknesses and remain in contact with the specimen 70 during the test.

[0057] The movement of the temperature sensor 39 can be adjusted manually (e.g., by adding or removing pads at the installation location of the temperature sensor 39) or automatically by using an electric telescopic rod.

[0058] In addition to using temperature sensor 39 to monitor the temperature, non-contact methods can also be used to detect the temperature of specimen 70, such as an infrared thermal imager. The infrared thermal imager should be placed on the side of specimen 70 away from the flame.

[0059] When fire-retardant coating is applied to a substrate surface using a spray gun, the large coverage area of ​​the spray gun means that when the fire-retardant coating falls onto adjacent substrates, the coating thickness on those substrates will increase. This is especially problematic when the coating materials on different substrates are different, as it can significantly interfere with the test results. To prevent the sprayed fire-retardant coating from falling onto other substrates or components, it is necessary to install a protective structure around the substrate to confine the spraying area to the area within the protective structure.

[0060] To achieve the above objectives, please refer to Figure 7 and Figure 9 In some possible embodiments, the top of the first clamping plate 32 and the second clamping plate 33 are respectively provided with clamping grooves 321. The clamping grooves 321 extend along the rotation axis of the flipping table 21 and pass through the first clamping plate 32 or the second clamping plate 33. The clamping assembly 30 also includes a first partition 35 and a second partition 36. The first partition 35 is detachably accommodated in the clamping groove 321, and the second partition 36 is detachably provided between two adjacent base plates 31. When spraying, the first partition 35 and the second partition 36 need to be installed first to form a protective area to prevent the fire retardant coating from falling onto the adjacent substrate or other areas and interfering with the test results.

[0061] The first partition 35 and the second partition 36 can be made of wood or metal and serve as a shielding device. They can be removed after the spraying is completed.

[0062] The fire-resistant products on the market include not only fire-resistant boards and fire-resistant coatings, but also flexible fire-resistant products such as fire-resistant cloth 80 and fire blankets. These flexible fire-resistant products are prone to curling and wrinkling under natural conditions, and need to be tensioned during testing.

[0063] Please see Figure 9 When testing flexible fireproof products such as fireproof cloth 80 and fireproof blankets is required, the clamping assembly 30 can further include a reversing rod 37 and locking screws 38 in addition to the above structure. The reversing rod 37 is located on the side of the second clamping plate 33 away from the first clamping plate 32. The reversing rod 37 is a round rod and is arranged parallel to the rotation axis of the flipping table 21. Multiple locking screws 38 are respectively located on one side of the clamping groove 321 of the first clamping plate 32 or the second clamping plate 33. The screw end of the locking screw 38 is accommodated in the clamping groove 321, and the locking screw 38 is threadedly engaged with the side wall of the corresponding clamping groove 321.

[0064] The clamping groove 321 of the first clamping plate 32 is used to accommodate one end of the fireproof cloth 80, and the end of the fireproof cloth 80 is pressed against the clamping groove 321 by the locking screw 38. The clamping groove 321 of the second clamping plate 33 is used to accommodate the other end of the fireproof cloth 80, and the end of the fireproof cloth 80 is pressed against the clamping groove 321 by the locking screw 38. The fireproof cloth 80 is first fixed to the first clamping plate 32, passes around the reversing rod 37, and is then fixed to the second clamping plate 33. At this time, the elastic member 34 applies a pulling force to the second clamping plate 33, which moves it towards the first clamping plate 32. Under the action of the pulling force, the fireproof cloth 80 is tensioned to facilitate testing.

[0065] The clamping assembly 30 provided in this embodiment can meet the testing requirements for three types of fireproof materials: fireproof board, fireproof coating and fireproof cloth 80. It has a wide range of applications and strong versatility.

[0066] Please see Figures 1 to 3 , Figure 6 and Figure 10 In some possible embodiments, the fire-resistant material performance testing device also includes a fire extinguishing tray 60, which is disposed between the combustion assembly 40 and the tilting table 21, and is used to store fire extinguishing materials.

[0067] The fire extinguishing tray 60 can be made of metal materials, such as steel. The fire extinguishing tray 60 can hold a certain amount of water, sand, and other fire-fighting materials to extinguish flames that fall during testing.

[0068] The method of using the fireproof material performance testing device provided in this application embodiment is as follows: 1. When testing fireproof boards or fireproof cloth 80, the fireproof boards or fireproof cloth 80 are cut into test pieces 70 with the required length and width. When testing fireproof coatings, a substrate is cut from a combustible substrate such as a wooden board. After the substrate is clamped into the clamping assembly 30, fireproof coating is sprayed or brushed onto the surface of the substrate.

[0069] 2. Position the tilting table 21 in a horizontal position and clamp the different test pieces 70 onto the corresponding clamping components 30 respectively; drive the tilting table 21 to rotate to a vertical position through the first driving component 22 so that the test surface faces the flame end of the burner 43.

[0070] 3. Adjust the horizontal distance between the burner 43 and the specimen 70 using the base 41 and the slide table 42.

[0071] 4. Start the burner 43 to scorch the surface of the specimen 70 with the flame. After the set scorching time is reached, turn off the burner 43. After the specimen 70 cools down naturally, remove the specimen 70 and observe the surface condition of the specimen 70.

[0072] 5. During the test, the temperature of the test specimen 70 can be measured by a temperature sensor 39 or a thermal imager located on the side of the test specimen 70 away from the burner 43.

[0073] It is understandable that the aforementioned mechanisms and drive devices can be opened and closed manually, or they can be automated using PLC or microcontroller systems to achieve processes such as flipping, ignition, timing, and temperature measurement. PLC or microcontrollers are common control methods in the mechanical field, and their specific working principles will not be elaborated further.

[0074] It is understood that the parts in the above embodiments can be freely combined or deleted to form different combined embodiments. The specific contents of each combined embodiment will not be repeated here. After this description, it can be considered that the present invention specification has recorded each combined embodiment and can support different combined embodiments.

[0075] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for detecting the properties of a fireproof material, characterized in that, The device comprises: a base (10) fixedly arranged; a turnover assembly (20) comprising a turnover table (21) and a first driving member (22), the turnover table (21) is rotationally connected with the base (10) around an axis in a horizontal direction, the turnover table (21) has a horizontal state and a vertical state, and the first driving member (22) is arranged on the base (10) and used for driving the turnover table (21) to switch between the horizontal state and the vertical state; a plurality of clamping assemblies (30) sequentially arranged on the turnover table (21) along the rotation axis direction of the turnover table (21), the clamping assembly (30) has a clamping space used for accommodating a test piece (70); and a plurality of combustion assemblies (40) arranged on the base (10) along the axis direction of the turnover table (21) at intervals, the combustion assembly (40) corresponds to the clamping assembly (30) in one-to-one correspondence, and when the turnover table (21) is in the vertical state, a flame injection end of the combustion assembly (40) faces the test piece (70).

2. The apparatus for detecting the performance of fireproof materials according to claim 1, wherein, The combustion assembly (40) comprises: a base (41) arranged on the base (10) and provided with a first sliding rail (411) in a horizontal direction, the length direction of the first sliding rail (411) is perpendicular to the rotation axis direction of the turnover table (21); a sliding table (42) in sliding fit with the first sliding rail (411); and a burner (43) arranged on the sliding table (42) and having the flame injection end.

3. The apparatus for detecting the performance of fireproof materials according to claim 1, wherein, The device further comprises a translation assembly (50), the translation assembly (50) comprises: a second sliding rail (51) arranged on the turnover table (21) and parallel to the rotation axis of the turnover table (21); a scissor mechanism (52) arranged along the length direction of the second sliding rail (51), the scissor mechanism (52) is in sliding fit with the second sliding rail (51), and the clamping assembly (30) is arranged on a hinge shaft (521) of the scissor mechanism (52) in one-to-one correspondence; and a second driving member (53) arranged on the second sliding rail (51) and used for driving the scissor mechanism (52) to move linearly along the second sliding rail (51).

4. The apparatus for detecting the performance of fireproof materials according to claim 3, wherein, The clamping assembly (30) has a mounting position and a detection position, and a plurality of test pieces (70) are arranged on the clamping assembly (30) in one-to-one correspondence; when in the mounting position, the plurality of clamping assemblies (30) are sequentially connected in the length direction of the second sliding rail (51) so that two adjacent test pieces (70) are attached to each other, and when in the detection position, the plurality of clamping assemblies (30) are spaced from each other so that the combustion assembly (40) and the test piece (70) correspond to each other in a horizontal direction perpendicular to the rotation axis of the turnover table (21).

5. The apparatus for detecting the performance of fireproof materials according to claim 4, wherein, The translation assembly (50) further comprises two limit switches (54), the detection ends of the two limit switches (54) correspond to the mounting position and the detection position of the scissor mechanism (52) respectively, and the limit switches (54) are in communication connection with the second driving member (53).

6. The apparatus for detecting properties of fireproof materials according to claim 1, wherein The clamping assembly (30) comprises: A bottom plate (31) is connected with the turnover table (21), and the bottom plate (31) is provided with a sliding groove arranged along a direction perpendicular to a rotation axis of the turnover table (21); A first clamping plate (32) is fixedly arranged on the bottom plate (31); A second clamping plate (33) is in sliding cooperation with the sliding groove, and the clamping space is formed between the first clamping plate (32) and the second clamping plate (33); the first clamping plate (32) and the second clamping plate (33) are respectively provided with clamping grooves for clamping side plates of the test piece (70) on a side adjacent to the test piece (70); and An elastic member (34) is connected between the first clamping plate (32) and the second clamping plate (33).

7. The apparatus for detecting properties of fireproof materials according to claim 6, wherein The first clamping plate (32) and the second clamping plate (33) are respectively provided with clamping grooves (321) at top portions, the clamping grooves (321) extend along the rotation axis of the turnover table (21) and penetrate through the first clamping plate (32) or the second clamping plate (33); The clamping assembly (30) further comprises a first partition plate (35) and a second partition plate (36), the first partition plate (35) is detachably arranged in the clamping groove (321), and the second partition plate (36) is detachably arranged between adjacent two bottom plates (31).

8. The apparatus for detecting the performance of fireproof materials according to claim 7, wherein, The clamping assembly (30) further comprises: A reversing rod (37) is arranged on a side of the second clamping plate (33) away from the first clamping plate (32), the reversing rod (37) is a round rod and is arranged parallel to the rotation axis of the turnover table (21); and A plurality of locking screws (38) are respectively arranged on one side of the clamping groove (321) of the first clamping plate (32) or the second clamping plate (33), screw rod ends of the locking screws (38) are arranged in the clamping groove (321), and the locking screws (38) are in threaded cooperation with side walls of the corresponding clamping grooves (321).

9. The apparatus for detecting the performance of fireproof materials according to claim 6, wherein, A temperature sensor (39) is arranged on the bottom plate (31), and a detection end of the temperature sensor (39) is used for abutting against a side of the test piece (70) away from the combustion assembly (40).

10. The apparatus for detecting properties of fireproof materials according to claim 1, wherein The fireproof material performance detection device further comprises a fire extinguishing disc (60), the fire extinguishing disc (60) is arranged between the combustion assembly (40) and the turnover table (21), and the fire extinguishing disc (60) is used for storing a fire extinguishing object.

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