Fire-resistant glass fire resistance testing device

Abstract

This invention provides a fire-resistant glass fire resistance performance testing device, comprising a device housing, a guide glass positioning structure slidably mounted at the bottom of the device housing, a communicating air guide mechanism fixedly mounted on the back of the device housing, and a pneumatic testing mechanism fixedly mounted on the top of the device housing, with the testing end of the pneumatic testing mechanism corresponding to the guide glass positioning structure. An igniter is fixedly mounted inside the device housing on the rear side of the guide glass positioning structure. This invention utilizes the pneumatic testing mechanism to perform physical testing of the glass during heating, dynamically testing the glass to determine its thermal shock resistance, thermal expansion, and fracture mode during heating, thus providing a more comprehensive testing scope. The operation of the air guide mechanism amplifies the fire source, allowing it to switch from a spontaneous combustion state, thereby increasing the impact force of the fire source on the glass and enhancing the testing intensity.

Description

Technical Field

[0001] This invention relates to the field of fire-resistant glass production technology, and more specifically to a device for testing the fire resistance performance of fire-resistant glass. Background Technology

[0002] Fire-resistant glass must meet national standards and relevant regulations to prove that it has certain fire resistance properties. The fire resistance testing process consists of two stages: laboratory testing and on-site installation testing.

[0003] Laboratory testing: Laboratory testing mainly involves testing the fire resistance limit, high temperature resistance, and cooling resistance of fire-resistant glass.

[0004] On-site installation and testing: On-site installation and testing mainly verify the fire resistance performance of fireproof glass in actual use.

[0005] A search of patent number CN114778593A reveals a fireproof board fire resistance performance testing device, including a housing. The housing is equipped with a distance control module, a fire spraying module, and a feeding module. The distance control module includes two I-shaped sliders slidably connected to the housing, a limiting plate located inside the housing and movably connected to the I-shaped sliders, a fireproof board detachably connected between the two limiting plates, and a motor connected to the limiting plate near the top of the housing.

[0006] While the fire resistance testing device for fireproof boards provided in the aforementioned patent documents solves the problems existing in the traditional methods, the testing scope of the above-mentioned solutions is still relatively limited. This is because the testing of fireproof glass in the laboratory requires not only testing the fire resistance time of the fireproof glass under high temperature conditions, but also testing its physical properties under both high temperature and cooling conditions. These properties include the thermal shock resistance, cooling performance, thermal expansion, and fracture mode of the fireproof glass. Therefore, the testing scope of the above solutions is still relatively limited and cannot better and more comprehensively test the fire resistance of fireproof glass. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides a fire-resistant glass fire resistance performance testing device, which solves the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A fire-resistant glass fire resistance performance testing device includes a device housing, a guide glass positioning structure slidably installed at the bottom of the device housing, a connected air guide mechanism fixedly installed on the back of the device housing, a pneumatic testing mechanism fixedly installed on the top of the device housing, and the testing end of the pneumatic testing mechanism corresponding to the guide glass positioning structure. An igniter is fixedly installed inside the device housing on the rear side of the guide glass positioning structure.

[0010] The guided glass positioning structure includes a guide component, a glass positioning component, an adjustment component, and a pull-out component. The pneumatic detection mechanism includes a telescopic component, a pushing component, an expansion component, and a triggering component. The guide component is fixedly installed at the bottom inside the device housing. The adjustment component is slidably installed on the guide component. The pull-out component is fixedly installed on the front of the adjustment component. The glass positioning component is slidably installed on the adjustment component. The pushing component is movably installed at the top of the device housing. The telescopic component is fixedly installed at the top of the device housing. The output end of the telescopic component is movably connected to the pushing component. The expansion component is installed inside the pushing component. The triggering component is installed inside the expansion component.

[0011] Furthermore, air inlets are provided on both sides of the device housing, support feet are fixedly installed at the bottom of the device housing, and an installation port for movable assembly with the pneumatic detection mechanism is provided at the top of the device housing.

[0012] Furthermore, the guiding component includes guide rails and guide blocks. Two sets of guide rails are fixedly installed at the bottom inside the device housing, and guide blocks connected to the glass positioning component are slidably mounted on the guide rails.

[0013] Furthermore, the glass positioning assembly includes clamping plates and clamping ports. Two sets of clamping plates are slidably installed on the top of the adjusting assembly, and clamping ports are provided on the inner side of the clamping plates.

[0014] Furthermore, the adjustment assembly includes a crossbeam, mounting blocks, a reverse threaded rod, and a sliding component. The crossbeam is fixedly installed between the guide blocks, and a sliding component that is slidably connected to the clamping plate is provided on the top of the crossbeam. The mounting blocks are fixedly installed on the front of the clamping plate, and a reverse threaded rod is installed between the mounting blocks. The pull-out assembly includes a pull-out handle and a connecting plate. The connecting plate is fixedly installed on the front of the crossbeam, and a pull-out handle is fixedly installed on the top of the connecting plate.

[0015] Furthermore, the telescopic component includes a cylinder, a movable connector, and a fixed base. The fixed base is fixedly installed on the top of the device housing, and the cylinder is fixedly installed on the fixed base. The output end of the cylinder is connected to the movable connector, which is movably connected to the pushing component.

[0016] Furthermore, the pushing component includes a swing plate, positioning rods, cylinder two, and a movable pin. The swing plate is movably installed in the mounting port via the movable pin, and the top of the swing plate is movably connected to the movable connector. Two sets of positioning rods connected to the expansion component are installed through the outer side of the swing plate, and cylinder two connected to the expansion component is fixedly installed on the swing plate between the positioning rods.

[0017] Furthermore, the expansion assembly includes an installation cavity, a push plate, an expansion airbag, an air guide pipe, and an air inlet. The positioning rod and the end of the second cylinder are jointly fixedly installed in the installation cavity. The expansion airbag is fixedly installed on the inner wall of the installation cavity. The push plate is fixedly installed on the end face of the expansion airbag, and the side of the push plate is installed and connected to the trigger assembly. The air inlet is fixedly installed on the top of the installation cavity, and the air guide pipe connected to the air inlet is fixedly installed on the expansion airbag.

[0018] Furthermore, the actuation component includes a contact, a connecting rod, and a mating sleeve. The mating sleeves are evenly distributed on the outer side of the mounting cavity, and the contact is fitted inside the mating sleeve. The inner end of the contact is fixedly installed with a connecting rod that is connected to the push plate.

[0019] Furthermore, the air guiding mechanism includes a cavity, fan blades, and a motor. A communicating cavity is fixedly installed on the back of the device housing. Four sets of motors are assembled inside the cavity, and fan blades are rotatably installed at the output end of the motors.

[0020] This invention provides a device for testing the fire resistance performance of fire-resistant glass. Compared with the prior art, it has the following advantages:

[0021] By using a pneumatic testing mechanism, physical testing of glass can be performed during heating. Through impact and pushing, the glass can be dynamically tested to determine its thermal shock properties, thermal expansion, and fracture mode during heating, making the testing scope more comprehensive.

[0022] The operation of the air guide mechanism is used to amplify the fire source, allowing it to switch from a self-ignition state, thereby increasing the impact force of the fire source on the glass and enhancing the glass's testing strength. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This diagram shows the overall first appearance structure of the detection device of the present invention;

[0025] Figure 2 A schematic diagram of the overall second appearance state structure of the detection device of the present invention is shown;

[0026] Figure 3 A schematic diagram of the glass positioning and adjustment structure in this invention is shown;

[0027] Figure 4This diagram shows the assembly state structure of the telescopic component and the pushing component of the present invention;

[0028] Figure 5 This diagram shows the assembly state structure of the expansion component and the trigger component of the present invention.

[0029] Figure 6 A schematic diagram of the structure of the trigger component of the present invention is shown;

[0030] The diagram shows: 1. Device housing; 11. Air inlet; 12. Support leg; 13. Glass slag discharge gate; 14. Mounting port; 2. Guided glass positioning structure; 21. Guide assembly; 211. Guide rail; 212. Guide block; 22. Glass positioning assembly; 221. Clamping plate; 222. Clamping port; 23. Adjustment assembly; 231. Crossbeam; 232. Mounting block; 233. Reverse threaded rod; 234. Sliding component; 24. Pull-out assembly; 241. Pull-out handle; 242. Connecting plate; 3. Pneumatic detection mechanism; 31. 311 Telescopic assembly; 312 Cylinder 1; 313 Movable connector; 314 Fixed base; 32 Push assembly; 321 Swing plate; 322 Positioning rod; 323 Cylinder 2; 324 Movable pin; 33 Expansion assembly; 331 Mounting cavity; 332 Push plate; 333 Inflatable airbag; 334 Air guide pipe; 335 Air inlet; 34 Actuation assembly; 341 Contact; 342 Connecting rod; 343 Connecting sleeve; 4. Air guide mechanism; 41 Cavity; 42 Fan blade; 43 Motor; 5. Ignition device. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1

[0033] To address the technical problems mentioned in the background section, the following fire resistance performance testing device for fire-resistant glass is provided:

[0034] Combination Figures 1-6As shown, the fire-resistant glass fire resistance performance testing device provided by the present invention includes a device housing 1, a guide glass positioning structure 2 slidably installed at the bottom of the device housing 1, a communicating air guide mechanism 4 fixedly installed on the back of the device housing 1, a pneumatic testing mechanism 3 fixedly installed on the top of the device housing 1, and the testing end of the pneumatic testing mechanism 3 corresponds to the guide glass positioning structure 2. An igniter 5 is fixedly installed inside the device housing 1 on the rear side of the guide glass positioning structure 2. Air vents 11 are provided on both sides of the device housing 1. A support foot 12 is fixedly installed at the bottom of the device housing 1. An installation port 14 is provided on the top of the device housing 1 for movable assembly with the pneumatic testing mechanism 3.

[0035] The guided glass positioning structure 2 includes a guide component 21, a glass positioning component 22, an adjustment component 23, and a pull-out component 24. The pneumatic detection mechanism 3 includes a telescopic component 31, a pushing component 32, an expansion component 33, and a triggering component 34. The guide component 21 is fixedly installed at the bottom inside the device housing 1. The adjustment component 23 is slidably installed on the guide component 21. The pull-out component 24 is fixedly installed on the front of the adjustment component 23. The glass positioning component 22 is slidably installed on the adjustment component 23. The pushing component 32 is movably installed on the top of the device housing 1. The telescopic component 31 is fixedly installed on the top of the device housing 1. The output end of the telescopic component 31 is movably connected to the pushing component 32. The expansion component 33 is installed inside the pushing component 32. The triggering component 34 is installed inside the expansion component 33.

[0036] Personnel place the device in a suitable working position using the support feet 12 until it is stable. Then, the device is adjusted inward or outward by sliding the guide glass positioning structure 2. Personnel use the sliding of the guide glass positioning structure 2 to clamp and position the fireproof glass to be tested. During this process, personnel make targeted adjustments according to the actual size of the glass. The igniter 5 simulates the fire source during a fire.

[0037] The operation of the air guide mechanism 4 is used to blow the fire source, so that the fire source can switch from the spontaneous combustion state, thereby increasing the impact of the fire source on the glass and increasing the detection strength of the glass.

[0038] At the same time, cooling can be achieved through the air guide mechanism 4. Switching from the blowing state to the exhaust state requires stopping the operation of the igniter 5 and starting the air guide mechanism 4 to rotate. At that time, the external air will quickly cool the glass, allowing personnel to test its resistance to temperature gradient impact and cooling performance.

[0039] The pneumatic testing mechanism 3 can perform physical testing on the glass during heating. By impacting and pushing, the glass can be dynamically tested to determine its thermal shock properties, thermal expansion, and fracture mode during heating.

[0040] The guide component 21 facilitates the personnel to pull the glass positioning component 22 inward and outward. The glass positioning component 22 can be clamped and positioned by adjusting the component 23. Before and after the inspection, the personnel can pull the guide component 21 as a whole by pulling the component 24.

[0041] The telescopic movement of the telescopic component 31 can drive the push component 32 to swing open and close. Its effect is reduced to the detection state during detection. When personnel load or unload materials, the push component 32 can switch to the unfolded state under the pull of the telescopic component 31 to avoid hindering the normal operation of the device. The push component 32 can drive the trigger component 34 on the front expansion component 33 to perform an impact movement, which can achieve a thermal impact effect on the glass. The impact expansion of the expansion component 33 can also achieve the following:

[0042] Example 2

[0043] like Figure 1 and Figure 3 As shown, based on the above embodiments, this embodiment further provides the following:

[0044] In this embodiment, the guide component 21 includes a guide rail 211 and a guide block 212. Two sets of guide rails 211 are fixedly installed at the bottom inside the device housing 1, and a guide block 212 connected to the glass positioning component 22 is slidably mounted on the guide rail 211.

[0045] During this process, the guide rail 211 and the guide block 212 cooperate with each other, and the guide block 212 slides smoothly on the guide rail 211, which facilitates the assembly of glass by personnel.

[0046] In this embodiment, the glass positioning component 22 includes a clamping plate 221 and a clamping port 222. Two sets of clamping plates 221 are slidably installed on the top of the adjusting component 23, and the clamping port 222 is provided on the inner side of the clamping plate 221.

[0047] During the operation, the personnel need to clamp and fix the glass to be tested, ensuring that both sides of the glass are embedded in the clamping openings 222 on the clamping plate 221 to complete the fixation; the personnel can lock the clamping state by adjusting the clamping plate 221 in real time.

[0048] In this embodiment, the adjustment component 23 includes a crossbeam 231, a mounting block 232, a reverse threaded rod 233, and a sliding component 234. The crossbeam 231 is fixedly installed between the guide blocks 212. The top of the crossbeam 231 is provided with a sliding component 234 that is slidably connected to the clamping plate 221. The mounting block 232 is fixedly installed on the front of the clamping plate 221, and the reverse threaded rod 233 is mated between the mounting blocks 232. The pull-out component 24 includes a pull-out handle 241 and a connecting plate 242. The connecting plate 242 is fixedly installed on the front of the crossbeam 231, and the pull-out handle 241 is fixedly installed on the top of the connecting plate 242.

[0049] Before and after operation, personnel can pull the pull handle 241 to load and unload the fireproof glass in conjunction with the connecting plate 242; the sliding component 234 can be used to ensure that the clamping plate 221 slides on the crossbeam 231, and the reverse threaded rod 233 between the mounting blocks 232 can be used to adjust the distance between the two, and also to adjust the distance between the clamping plates 221.

[0050] Example 3

[0051] like Figures 1-6 As shown, based on the above embodiments, this embodiment further provides the following:

[0052] In this embodiment, the telescopic component 31 includes a cylinder 311, a movable connector 312, and a fixed base 313. The fixed base 313 is fixedly installed on the top of the device housing 1, and the cylinder 311 is fixedly installed on the fixed base 313. The output end of the cylinder 311 is connected to the movable connector 312, which is movably connected to the push component 32.

[0053] By starting and running cylinder 311, cylinder 311 can drive the structural components at the connection end to perform moving operations through movable connector 312. Since there is a moving connection between the push component 32 and the mounting port 14, the lever principle can be used to complete the moving linkage of the push component 32, ensuring that the push component 32 can be carried out.

[0054] The pushing component 32 includes a swing plate 321, a positioning rod 322, a second cylinder 323, and a movable pin 324. The swing plate 321 is movably mounted in the mounting port 14 via the movable pin 324, and the top of the swing plate 321 is movably connected to the movable connector 312. Two sets of positioning rods 322 connected to the expansion component 33 are installed through the outer side of the swing plate 321, and a second cylinder 323 connected to the expansion component 33 is fixedly mounted on the swing plate 321 between the positioning rods 322.

[0055] The push component 32 serves to receive the push, and the swing plate 321 swings open and closes after being subjected to the force.

[0056] Then, start cylinder 2 323. Adjust the distance between expansion component 33 and detection glass by extending and retracting cylinder 2 323 to ensure that the required detection work can be carried out better. The detection needs under different conditions can also be met by adjusting the distance.

[0057] Finally, the expansion component 33 is used to test the required physical properties of the glass.

[0058] In this embodiment, the expansion assembly 33 includes an installation cavity 331, a push plate 332, an expansion airbag 333, an air guide pipe 334, and an air inlet 335. The positioning rod 322 and the end of the cylinder 323 are jointly fixedly installed in the installation cavity 331. The expansion airbag 333 is fixedly installed on the inner wall of the installation cavity 331. The push plate 332 is fixedly installed on the end face of the expansion airbag 333, and the side of the push plate 332 is installed and connected to the trigger assembly 34. The air inlet 335 is fixedly installed on the top of the installation cavity 331, and the air guide pipe 334 connected to the air inlet 335 is fixedly installed on the expansion airbag 333.

[0059] During operation, the cavity 331 serves as an external drive component 32 and an internal detection component;

[0060] The air inlet 335 is used to connect with an external air pressure device for installation. During this process, the air inlet 333 is inflated through the air inlet 335. The expansion and contraction of the air inlet 333 drives the push plate 332 at the front end. Since the push plate 332 is connected to the trigger component 34, the expansion and contraction of the air inlet 333 will drive the trigger component 34 to move synchronously. The impact speed of the trigger component 34 is determined by the inflation speed.

[0061] In this embodiment, the actuation component 34 includes a contact 341, a connecting rod 342, and a mating sleeve 343. The mating sleeves 343 are evenly distributed on the outer side of the mounting cavity 331. The contact 341 is fitted inside the mating sleeve 343, and the connecting rod 342 connected to the push plate 332 is fixedly installed at the inner end of the contact 341.

[0062] The contact 341 is constrained by the docking sleeve 343, and the connecting rod 342 serves as a receiving and connecting element. The connecting rod 342 is connected to the push plate 332. Due to the driving motion of the push plate 332, the contact 341 reciprocates within the docking sleeve 343. The speed of this reciprocating motion is adjusted in real time according to the expansion speed during inflation. The contact 341 is used to detect the material in the glass.

[0063] In this embodiment, the air guiding mechanism 4 includes a cavity 41, a fan blade 42, and a motor 43. The back of the device housing 1 is fixedly installed with a communicating cavity 41. Four sets of motors 43 are assembled in the cavity 41, and the output end of the motor 43 is rotatably mounted with a fan blade 42.

[0064] During this period, personnel can use motor 43 to drive fan blade 42 to rotate and blow air onto the glass during the inspection. There are two states: one is to blow air onto the glass during the inspection to conduct thermal shock, and the other is to blow air after the flame stops to conduct cooling inspection.

[0065] Working principle and usage process of this invention:

[0066] When doing homework:

[0067] Personnel place the device in a suitable working position using the support feet 12 until it is stable. Activation of cylinder 311 allows it to drive the structural components at the connecting end via the movable connector 312. Since the pushing component 32 is movably connected to the mounting port 14, lever principle is used to achieve the linkage of the pushing component 32's movement, ensuring its operation. Personnel must first clamp and fix the glass to be inspected, ensuring both sides of the glass are embedded in the clamping openings 222 on the clamping plate 221, thus securing it. Personnel then lock the clamping state by real-time adjustment of the clamping plate 221 before activating cylinder 311 to lower the pushing component 32.

[0068] By igniting the fire source during a fire using the igniter 5, personnel can start the motor 43 to drive the fan blades 42 to rotate and blow air onto the glass during the inspection. There are two states: one is to blow air onto the glass during the inspection to cause thermal shock, and the other is to blow air after the flame stops to carry out cooling inspection.

[0069] Start cylinder 2 323, and adjust the distance between expansion component 33 and detection glass by extending and retracting cylinder 2 323 to ensure that the required detection work can be carried out better. The distance can also be adjusted to meet the detection needs under different conditions.

[0070] The air inlet 335 is connected to an external pneumatic device. During this process, the air inlet 335 inflates the expansion airbag 333. The expansion and contraction of the expansion airbag 333 drives the push plate 332 at the front end. Since the push plate 332 is connected to the actuation component 34, the expansion and contraction of the expansion airbag 333 drives the actuation component 34 to move synchronously. The impact speed of the actuation component 34 is determined by the inflation speed. The push plate 332 drives the contact 341 to reciprocate within the docking sleeve 343. The speed of this reciprocating motion is adjusted in real time according to the inflation speed. The contact 341 is used to perform material testing on the glass and to conduct a comprehensive test on the glass's fire resistance.

[0071] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0072] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for testing the fire resistance of fire-resistant glass, characterized in that: Including device shell (1), the bottom sliding installation of device shell (1) in the glass guiding type position structure (2) is fixedly installed in the back of device shell (1) with the communication air guide mechanism (4), the top of device shell (1) is fixedly installed with pneumatic detection mechanism (3), and the detection end of pneumatic detection mechanism (3) corresponds with guiding type glass positioning structure (2), the device shell (1) in the rear side of guiding type glass positioning structure (2) is fixedly installed with igniter (5); The guiding type glass positioning structure (2) includes guiding component (21), glass positioning component (22), adjusting component (23), pull-out component (24), pneumatic detection mechanism (3) includes telescopic component (31), push component (32), expansion component (33), touch component (34), the bottom of device shell (1) is fixedly installed with guiding component (21), adjusting component (23) is slidably installed on guiding component (21), and the front of adjusting component (23) is fixedly installed with pull-out component (24), glass positioning component (22) is slidably installed on adjusting component (23), the top of device shell (1) is movably installed with push component (32), the top of device shell (1) is fixedly installed with telescopic component (31), and the output end of telescopic component (31) is movably connected with push component (32), expansion component (33) is installed in the inner side of push component (32) and is connected with the extension touch component (34) in the inner side, The expansion component (33) includes installation cavity (331), push plate (332), expansion air bag (333), air pipe (334), gas connection head (335), the end of positioning rod (322) and cylinder two (323) is fixedly installed with installation cavity (331), the inner wall of installation cavity (331) is fixedly installed with expansion air bag (333), the end face of expansion air bag (333) is fixedly installed with push plate (332), and the side of push plate (332) is connected with touch component (34), the top of installation cavity (331) is fixedly installed with gas connection head (335), expansion air bag (333) is fixedly installed with air pipe (334) connected with gas connection head (335); The touch component (34) includes contact head (341), connecting rod (342), docking sleeve (343), the outer side of installation cavity (331) is uniformly distributed with the communication docking sleeve (343), the contact head (341) is sleeved in the docking sleeve (343), and the inner end of contact head (341) is fixedly installed with connecting rod (342) connected with push plate (332).

2. The apparatus for testing the fire resistance of fire-resistant glass according to claim 1, characterized in that: Both sides of the device shell (1) are provided with air inlet (11), the bottom of device shell (1) is fixedly installed with supporting leg (12), and the top of device shell (1) is provided with mounting port (14) movably assembled with pneumatic detection mechanism (3).

3. The apparatus for testing the fire resistance of fire-resistant glass according to claim 2, characterized in that: The guide assembly (21) comprises guide rails (211) and guide blocks (212), two groups of guide rails (211) are fixedly installed on the bottom of the device shell (1), and the guide blocks (212) connected with the glass positioning assembly (22) are slidably assembled on the guide rails (211).

4. The apparatus for testing the fire resistance of fire-resistant glass according to claim 3, characterized in that: The glass positioning assembly (22) comprises clamping plates (221) and clamping openings (222), two groups of clamping plates (221) are slidably installed on the top of the adjusting assembly (23), and the inner sides of the clamping plates (221) are provided with clamping openings (222).

5. The apparatus of claim 4, wherein: The adjusting assembly (23) comprises cross arms (231), mounting blocks (232), reverse threaded rods (233) and sliding parts (234), the cross arms (231) are fixedly installed between the guide blocks (212), the sliding parts (234) slidably connected with the clamping plates (221) are arranged on the top of the cross arms (231), the mounting blocks (232) are fixedly installed on the front faces of the clamping plates (221), the reverse threaded rods (233) are installed in a butt joint manner between the mounting blocks (232), the pulling assembly (24) comprises pulling handles (241) and link plates (242), the link plates (242) are fixedly installed on the front faces of the cross arms (231), and the pulling handles (241) are fixedly installed on the top of the link plates (242).

6. The apparatus for testing the fire resistance of fire-resistant glazing according to claim 1, wherein: The telescopic assembly (31) comprises air cylinder one (311), movable connecting heads (312) and fixed seats (313), the fixed seats (313) are fixedly installed on the top of the device shell (1), the air cylinder one (311) is fixedly installed on the fixed seats (313), and the output end of the air cylinder one (311) is connected in a butt joint manner with the movable connecting heads (312) of the pushing assembly (32).

7. The apparatus of claim 6, wherein: The pushing assembly (32) comprises swing plates (321), positioning rods (322), air cylinder two (323) and movable pin shafts (324), the swing plates (321) are movably installed in the mounting openings (14) through the movable pin shafts (324), the top of the swing plates (321) is movably connected with the movable connecting heads (312), the positioning rods (322) connected with the expansion assembly (33) are installed on the outer side of the swing plates (321), the air cylinder two (323) connected with the expansion assembly (33) is fixedly installed on the swing plates (321) between the positioning rods (322).

8. The apparatus for testing the fire resistance of fire resistant glazing according to claim 1, wherein: The air guiding mechanism (4) comprises cavities (41), fan leaves (42) and motors (43), the cavities (41) are fixedly installed on the back of the device shell (1) in communication, four groups of motors (43) are assembled in the cavities (41), and the output ends of the motors (43) are rotatably installed with the fan leaves (42).

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