An electric motorcycle telescopic fire test box

Abstract

The utility model relates to fire test device technical field especially relates to a kind of electric motorcycle telescopic fire test box, including fixed cabin, with the first accommodating cavity;Movable cabin, with the second accommodating cavity, movable cabin is slidably arranged in fixed cabin, and the cabin door for facilitating into movable cabin is equipped in front end;Travel mechanism, movable cabin moves relative to fixed cabin by travel mechanism, to change the length of the internal test space of fire test box;Movable plate assembly is set in fixed cabin.The utility model sets up travel mechanism, so that movable cabin can be moved in length direction relative to fixed cabin, change the length of test space formed by movable cabin and fixed cabin, to be able to satisfy the fire test demand of different specifications electric motorcycle or other test products, simultaneously, by setting movable plate assembly, with the rear end horizontal connection of movable cabin, extend movable cabin length, and the actual usable test space length inside test box is expanded.

Description

Technical Field

[0001] This utility model relates to the field of fire testing equipment technology, and in particular to a telescopic fire testing chamber for electric motorcycles. Background Technology

[0002] In the field of fire testing equipment technology, fire test chambers are core equipment for studying the fire resistance performance of materials, the fire spread law and the characteristics of smoke. By simulating different fire scenarios, they provide key data for fire protection scientific research, product certification and safety standard formulation.

[0003] Most existing fire test chambers are fixed structures, meaning the length and volume of the test space are fixed. They mainly consist of a single chamber, which forms a closed test area and is equipped with testing components such as ignition devices, temperature sensors, and gas analysis modules. These fixed-structure test chambers are simple to design and easy to manufacture, making them suitable for testing samples with relatively uniform specifications.

[0004] The existing fixed-structure fire test chamber has the following technical problems: due to the fixed length of the chamber, it is impossible to flexibly adjust the internal space according to the different sizes of other test objects such as electric motorcycles, which makes it impossible to guarantee the accuracy of the test environment (simulation of a closed space) and the test data. Utility Model Content

[0005] To address at least one of the aforementioned technical problems, this utility model proposes a telescopic fire test chamber for electric motorcycles, thereby solving the problem that existing fire test chambers cannot meet the testing needs of electric motorcycles or other test objects of different sizes.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A telescopic fire test chamber for electric motorcycles, comprising:

[0008] A fixed compartment having a first accommodating cavity, wherein a front hatch is provided at the front of the fixed compartment;

[0009] The movable cabin has a second accommodating cavity. The movable cabin is slidably disposed in the fixed cabin through the front hatch. The rear end of the movable cabin is provided with a rear hatch, and the front end is provided with a hatch for easy access to the movable cabin.

[0010] A traveling mechanism is provided between the inner wall of the fixed chamber and the outer wall of the movable chamber. The movable chamber moves relative to the fixed chamber through the traveling mechanism to change the length of the internal test space of the fire test chamber.

[0011] A movable plate assembly, disposed within the fixed cabin, is used to horizontally connect to the rear end of the movable cabin to extend the length of the movable cabin.

[0012] Preferably, the walking mechanism includes:

[0013] The inner rails are located on the upper and lower parts of the inner wall of the fixed cabin;

[0014] The outer track is located outside the fixed cabin and corresponds to the inner track located at the bottom of the fixed cabin;

[0015] The walking wheel assembly rolls along the inner and outer tracks. The walking wheel assembly includes a first walking wheel rotatably disposed at the lower front end of the active cabin, and a second and third walking wheels disposed at the upper and lower rear ends of the active cabin.

[0016] Preferably, the inner track and the outer track are both conical, and the outer periphery center of the first, second and third traveling wheels is provided with a conical groove, which is adapted to the conical track surface. The first, second and third traveling wheels are rotatably mounted on the movable cabin through a mounting base, and the first traveling wheel is a brake wheel.

[0017] Preferably, the movable plate assembly includes a support plate and a lifting mechanism disposed at the bottom of the four corners of the support plate for driving the support plate to rise and fall. The fixed end of the lifting mechanism is fixed to the lower inner wall of the fixed compartment, and the telescopic end of the lifting mechanism is fixed to the bottom of the support plate. The length of the support plate is less than the distance between the two third traveling wheels.

[0018] Preferably, the lifting mechanism is a synchronous hydraulic rod or a synchronous electric push rod.

[0019] Preferably, the movable cabin is provided with a limiting baffle on the front side of the second and / or third traveling wheels.

[0020] Preferably, the hatch is opened or closed by horizontal rotation of hinges spaced at intervals along the height direction of the movable cabin, and the movable cabin is fixed to the movable cabin by a door lock structure; a handle is provided on the side of the hatch away from the hinge to facilitate opening or closing the hatch; the hatch is provided with an observation window, the observation window is fitted with high-temperature resistant glass, and the high-temperature resistant glass is provided with a heat insulation layer on the outside.

[0021] Preferably, the door lock structure is a latch-type door lock, the latch-type door lock comprising:

[0022] A first base is fixedly disposed on the side of the hatch, and a fixed shaft is provided on the side of the first base away from the hatch;

[0023] The second base is fixedly installed on the side of the active cabin and has the same height as the first base. A locking post is vertically provided on the side of the second base away from the active cabin.

[0024] The handle is rotatably mounted on the fixed shaft and rotates around the central axis of the fixed shaft; the front end of the handle is a bent section.

[0025] The hook has a fixed end with a rotating groove, and the end of the bent section is vertically rotatably disposed in the rotating groove. The free end of the hook has a hook-shaped locking hook that is fastened to the locking post. Rotating the handle causes the fixed end of the hook to rotate, so that the locking hook is locked or disengaged from the locking post.

[0026] Preferably, the outer track is provided with a pad at the end away from the fixed compartment to facilitate the entry of an electric motorcycle into the fire test chamber, the side of the pad away from the fixed compartment is provided with a slope, and a sealing structure is provided between the fixed compartment and the movable compartment.

[0027] Preferably, the interior and / or exterior of the fixed compartment and / or the movable compartment are equipped with test components for fire testing.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. This utility model, by setting up a walking mechanism, enables the movable chamber to move relative to the fixed chamber in the length direction, changing the length of the test space formed by the movable chamber and the fixed chamber, thereby meeting the fire testing requirements of electric motorcycles or other test objects of different specifications. At the same time, when the movable chamber moves outward relative to the fixed chamber, there is a height difference between the rear end of the movable chamber and the lower inner wall of the fixed chamber. By setting up a movable plate assembly, which is horizontally connected to the rear end of the movable chamber, the length of the movable chamber is extended, and the actual usable test space length inside the test chamber is expanded.

[0030] 2. This utility model utilizes a "conical surface fit" formed by the conical track surface and the conical groove of the traveling wheel. The self-centering effect of the conical surface automatically corrects minor offsets during the sliding of the movable cabin, ensuring that the traveling wheel always rolls along the center of the track. This significantly improves guiding accuracy and avoids jamming or wear caused by track misalignment. Simultaneously, the conical surface contact increases the contact area between the traveling wheel and the track, distributing pressure, reducing localized wear, and enhancing the lateral constraint of the traveling wheel, effectively preventing derailment.

[0031] 3. This utility model achieves quick locking / unlocking through the hook-shaped engagement of the hook and the locking pin, making operation simple (simply by turning the handle). Simultaneously, the bent section of the handle connects to the rotating groove of the hook, forming a lever structure. This simple and labor-saving design ensures the hatch will not loosen under high temperature and vibration testing environments, improving sealing reliability. Attached Figure Description

[0032] Figure 1 A perspective view of a telescopic fire test chamber for electric motorcycles;

[0033] Figure 2 This is a side view of a telescopic fire test chamber for electric motorcycles.

[0034] Figure 3 A cross-sectional view of a telescopic fire test chamber for electric motorcycles;

[0035] Figure 4 An exploded view of a telescopic fire test chamber for an electric motorcycle.

[0036] Figure 5 This is a schematic diagram of the fixed compartment in this utility model;

[0037] Figure 6 This is a cross-sectional view of the fixed compartment in this utility model;

[0038] Figure 7 This is a perspective view of the movable cabin in this utility model;

[0039] Figure 8 for Figure 1 Enlarged view of point A in the middle;

[0040] In the diagram: 10, fixed compartment; 101, forward hatch;

[0041] 20. Activity compartment; 201. Aft hatch; 202. Hatch door; 2021. Observation window; 203. Limiting baffle; 204. Hinge; 205. Handle;

[0042] 30. Traveling mechanism; 301. Inner track; 302. Outer track; 303. Traveling wheel assembly; 3031. First traveling wheel; 3032. Second traveling wheel; 3033. Third traveling wheel; 3034. Conical groove; 3035. Mounting base;

[0043] 40. Movable plate assembly; 401. Support plate; 402. Lifting mechanism;

[0044] 50. Door lock structure; 501. First base; 502. Fixed shaft; 503. Second base; 504. Lock pin; 505. Handle; 506. Hook; 5061. Lock hook;

[0045] 60. Spacer blocks;

[0046] 70. Sealed structure. Detailed Implementation

[0047] To enable those skilled in the art to better understand the technical solutions in this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments in this utility model, and not all of the embodiments in this utility model.

[0048] Please refer to Figure 1-7 As shown, a telescopic fire test chamber for electric motorcycles includes:

[0049] The fixed compartment 10 has a first accommodating cavity, and the front of the fixed compartment 10 is provided with a front hatch 101;

[0050] The movable cabin 20 has a second accommodating cavity. The movable cabin 20 is slidably disposed in the fixed cabin 10 through the front hatch 101. The rear end of the movable cabin 20 is provided with a rear hatch 201, and the front end is provided with a hatch 202 for easy access to the movable cabin 20.

[0051] The traveling mechanism 30 is located between the inner wall of the fixed chamber 10 and the outer wall of the movable chamber 20. The movable chamber 20 moves relative to the fixed chamber 10 through the traveling mechanism 30 to change the length of the internal test space of the fire test chamber.

[0052] The movable plate assembly 40 is disposed within the fixed compartment 10 and is used to horizontally connect to the rear end of the movable compartment 20 to extend the length of the movable compartment 20.

[0053] In this embodiment, by setting up a walking mechanism 30, the movable chamber 20 can move in the length direction relative to the fixed chamber 10, changing the length of the test space formed by the movable chamber 20 and the fixed chamber 10. This can meet the fire testing requirements of electric motorcycles of different sizes and other test objects of different sizes. At the same time, when the movable chamber 20 moves outward relative to the fixed chamber 10, there is a height difference between the rear end of the movable chamber 20 and the lower inner wall of the fixed chamber 10. By setting up a movable plate assembly 40, which is horizontally connected to the rear end of the movable chamber 20, the length of the movable chamber 20 is extended, and the actual usable test space length inside the test chamber is expanded.

[0054] It should be noted that in this embodiment, both the active cabin 20 and the fixed cabin 10 are cuboid structures, and the cross-sections of the first accommodating cavity and the second accommodating cavity are also rectangular.

[0055] Understandably, considering that electric motorcycles or other test items may be in a burning state during the use of the test chamber, resulting in high temperatures inside the chamber, the main bodies of the fixed chamber 10 and the movable chamber 20 in this embodiment can be made of heat-resistant steel, such as Cr25Ni20 (310S stainless steel) or Cr18Ni9Ti (321 stainless steel), to ensure structural stability of the fixed chamber 10 and the movable chamber 20 and guarantee the accuracy and integrity of the test results. Simultaneously, a heat insulation layer can be installed on the outside of the fixed chamber 10 and the movable chamber 20. This layer can be made of inorganic heat insulation materials, such as aluminum silicate cotton, aluminum silicate needled blanket, rock wool board, or ceramic fiber board, effectively preventing internal heat from transferring outwards and protecting operators and the surrounding environment.

[0056] Please refer to Figure 2-4 As shown, in this embodiment, the walking mechanism 30 includes: an inner track 301, which is disposed on the upper and lower parts of the inner wall of the fixed cabin 10; an outer track 302, which is disposed on the outside of the fixed cabin 10 and corresponds to the inner track 301 located at the lower part of the fixed cabin 10; and a walking wheel assembly 303, which rolls along the inner track 301 and the outer track 302. The walking wheel assembly 303 includes a first walking wheel 3031 rotatably disposed on the lower front end of the movable cabin 20, and a second walking wheel 3032 and a third walking wheel 3033 disposed on the upper and lower rear ends of the movable cabin 20.

[0057] It should be noted that in this example, the second traveling wheel 3032 and the third traveling wheel 3033 mainly roll along the inner track 301, while the first traveling wheel 3031 mainly travels along the outer track 302. The inner track 301 can be formed by extending the lower outer track 302. Specifically, in this embodiment, the track surfaces of both the inner track 301 and the outer track 302 are conical. The outer periphery centers of the first traveling wheel 3031, the second traveling wheel 3032, and the third traveling wheel 3033 are each provided with a conical groove 3034, which conforms to the conical track surface. The first traveling wheel 3031, the second traveling wheel 3032, and the third traveling wheel 3033 are all rotatably mounted on the movable cabin 20 via the mounting base 3035.

[0058] Understandably, the tapered track surface and the tapered groove 3034 of the traveling wheel form a "tapered fit". By utilizing the self-centering effect of the tapered surface, the slight offset of the moving cabin 20 during sliding is automatically corrected, ensuring that the traveling wheel always rolls along the center of the track, significantly improving the guiding accuracy and avoiding jamming or wear caused by track offset.

[0059] Meanwhile, the conical contact increases the contact area between the traveling wheel and the track, dispersing pressure, reducing localized wear, and enhancing the lateral restraint of the traveling wheel, effectively preventing derailment. The structure of the mounting base 3035 allows the traveling wheel to rotate flexibly, reduces frictional resistance, ensures smooth movement of the movable cabin 20, and reduces power consumption (such as manual pushing or load on the drive device).

[0060] To fix the position of the movable cabin relatively when it is moved to a suitable location, the first traveling wheel in this embodiment is equipped with a braking structure (not shown in the figure). The braking structure can be a foot-operated brake, and its specific structure can adopt the universal caster braking structure disclosed in application number CN201820165102.2. This application does not specifically limit the braking structure of the brake wheel in this application.

[0061] To prevent the second and third wheels 3032 and 3033 from colliding with the front inner wall of the fixed compartment 10 during movement, a limiting baffle 203 is provided on the front side of the second and / or third wheels 3032 and 3033 in this embodiment. In this embodiment, the limiting baffle 203 is L-shaped. Considering that the support plate 401 is positioned between the third wheels 3033 and the movable compartment 20, it is preferable to position the limiting baffle 203 on the upper part or both sides of the movable compartment 20, located in front of the second wheels 3032. In this case, the limiting baffle 203 can be extended along the width of the movable compartment 20. When the limiting baffle 203 is positioned at the lower part of the movable compartment 20, it can be positioned on the outer side of the two third wheels 3033 to avoid collision with the support plate 401.

[0062] To provide cushioning, a buffer pad can be installed on the side of the limiting baffle 203 that contacts the fixed chamber 10. This buffer pad must be made of a high-temperature resistant and fire-resistant material, such as an aluminum silicate fiber composite buffer pad. The base material is aluminum silicate fiber (with long-term temperature resistance above 1000℃), which is formed into a felt-like or plate-like structure with a certain degree of elasticity through needle punching, compression molding, or compounding with a small amount of high-temperature resistant adhesive. Utilizing its soft texture and moderate resilience, it can absorb impact energy through the gaps and deformation between fibers; it also has excellent high-temperature resistance, not burning or melting at high temperatures, and strong chemical stability, preventing the release of harmful gases due to high temperatures.

[0063] In order to maximize the effective length of the movable cabin 20, the length of the outer track 302 in this embodiment should be slightly greater than the distance between the limiting plate and the front inner wall of the fixed cabin 10.

[0064] Please refer to Figure 3-6As shown, the movable plate assembly 40 described above in this embodiment includes a support plate 401 and a lifting mechanism 402 disposed at the bottom of the four corners of the support plate 401 for driving the support plate 401 to rise and fall. The fixed end of the lifting mechanism 402 is fixed to the lower inner wall of the fixed compartment 10, and the telescopic end of the lifting mechanism 402 is fixed to the bottom of the support plate 401. The length of the support plate 401 is less than the distance between the two third traveling wheels 3033.

[0065] It should be noted that the function of the lifting mechanism 402 in this embodiment is to provide lifting force for the support plate 401. Based on the consideration of installation space and the practicality and simplicity of the lifting structure, the lifting mechanism 402 in this embodiment can be a synchronous hydraulic rod or a synchronous electric push rod.

[0066] Specifically, when the length of the electric motorcycle or other test specimen exceeds the actual usable length of the movable chamber 20, the lifting mechanism 402 raises the support plate 401 to the height of the lower inner wall of the movable chamber 20, making the support plate 401 flush with the lower inner wall of the movable chamber 20, thereby expanding the length of the test specimen space. When it is necessary to retract the movable chamber 20 into the fixed chamber 10, the lifting mechanism 402 lowers the height of the support plate 401, making its upper surface lower than the lower part of the movable chamber 20, to avoid collision between the movable chamber 20 and the support plate 401.

[0067] Meanwhile, in this embodiment, multiple sets of the movable plate assembly 40 can be set. By combining them, the actual usable length of the sample space can be adjusted more flexibly, thereby more flexibly adapting to the testing needs of electric motorcycles or other test objects of different sizes.

[0068] Understandably, synchronous hydraulic rods or synchronous electric actuators need to be used under high-temperature conditions. Therefore, adaptive adjustments are required for the hydraulic cylinders and electric actuators. For example, the hydraulic oil for synchronous hydraulic rods must be high-temperature, flame-retardant hydraulic oil to prevent oil deterioration or combustion at high temperatures; the cylinder body and piston rod must be made of heat-resistant steel (such as 310S stainless steel), and the seals must be made of fluororubber to prevent leakage due to high-temperature aging. The motor for synchronous electric actuators must be a high-temperature resistant model (such as an F-class insulated motor, with a temperature resistance of over 155℃), and the actuator housing must be wrapped with heat-insulating material (such as ceramic fiber sleeve) to prevent radiant heat from the test chamber from directly affecting the motor; the cables must be made of high-temperature resistant silicone wire to prevent the insulation layer from melting.

[0069] It is understood that the specific structure, installation method, and working principle of the synchronous hydraulic rod and the electric push rod are existing technologies, and will not be elaborated here. Obviously, the lifting mechanism 402 can also use a similar scissor mechanism to achieve lifting.

[0070] Please refer to Figure 1 and Figure 4As shown, in this embodiment, the hatch 202 is opened or closed by horizontally rotating hinges 204 spaced at intervals along the height direction of the movable cabin 20. A handle 205 is provided on the side of the hatch 202 away from the hinges 204 to facilitate opening or closing the hatch 202. The hatch 202 is equipped with an observation window 2021, which is fitted with high-temperature resistant glass. The high-temperature resistant glass has an external heat insulation layer, effectively protecting the safety of the operator. Simultaneously, the observation window 2021 allows observation of the test status inside the cabin without opening the hatch 202, ensuring the continuity of the test.

[0071] In this embodiment, there are 3 hinges 204 and 2 handles 205. The high-temperature resistant glass can be borosilicate glass, high silica glass, quartz glass, etc.

[0072] Please refer to Figure 1 , Figure 4 , Figure 7 and Figure 8 As shown, in this embodiment, to improve the sealing between the hatch 202 and the movable compartment 20, the movable compartment 20 is fixed to the movable compartment 20 by a door lock structure 50. Specifically, the door lock structure 50 adopts a latch-type door lock, which includes:

[0073] The first base 501 is fixedly installed on the side of the hatch 202, and the first base 501 is provided with a fixed shaft 502 on the side away from the hatch 202;

[0074] The second base 503 is fixedly installed on the side of the active cabin 20 and has the same height as the first base 501. A locking post 504 is vertically provided on the side of the second base 503 away from the active cabin 20.

[0075] The handle 505 is rotatably sleeved on the fixed shaft 502 and rotates around the central axis of the fixed shaft 502. The front end of the handle 505 is a bent section.

[0076] Hook 506, the fixed end of hook 506 is provided with a rotating groove, the end of the bent section is vertically rotatably set in the rotating groove, and the free end of hook 506 has a hook-shaped locking hook 5061 that is fastened to locking pin 504.

[0077] It should be noted that when locking the hatch 202 to the movable cabin 20 using the latch-type door lock, the operator engages the hook 5061 at the free end of the latch 506 onto the locking pin 504, and rotates the handle 505 to rotate the fixed end of the latch 506, pulling the hatch 202 toward the movable cabin 20 until the hook 5061 and the locking pin 504 are locked. Similarly, when opening the hatch 202, the operator finds that rotating the handle 505 causes the fixed end of the latch 506 to rotate obliquely toward the hook 5061, thereby disengaging the hook 5061 from the locking pin 504. Removing the hook 506 from the locking pin 504 allows the hatch 202 to be opened.

[0078] In this embodiment, the hook 506 and the locking pin 504 engage in a hook-like mechanism to achieve quick locking / unlocking, which is simple to operate (simply by rotating the handle 505). Simultaneously, the bent section of the handle 505 connects to the rotating groove of the hook 506, forming a lever structure. This simple and labor-saving structure ensures that the hatch 202 will not loosen under high temperature and vibration testing environments, improving sealing reliability. In this embodiment, there are two door lock structures 50, respectively located at corresponding positions on the upper and lower parts of the movable compartment 20 and the fixed compartment 10.

[0079] Obviously, the door lock structure 50 described above can also be other door lock structures 50, the purpose of which is to lock the hatch 202 to the movable compartment 20.

[0080] Meanwhile, in order to ensure the airtightness between the hatch 202 and the movable cabin 20, a high-temperature resistant sealing strip can be installed at the contact part between the movable cabin 20 and the hatch 202.

[0081] In order to facilitate the entry of electric motorcycles into the fire test chamber, in this embodiment, a pad 60 is provided at the end of the outer track 302 away from the fixed chamber 10, and a slope is provided on the side of the pad 60 away from the fixed chamber 10.

[0082] Understandably, due to the weight of electric motorcycles, there is a height difference between the entrance and the bottom of the test chamber. To avoid having to manually move them into the test chamber, they can enter the test chamber through the channel formed by the slope of the pad block 60, which improves convenience.

[0083] Meanwhile, to improve the airtightness of the test chamber, a sealing structure 70 is provided between the fixed chamber 10 and the movable chamber 20 in this embodiment. Specifically, the sealing structure 70 can be made of a high-temperature resistant sealing strip, which is set around the front hatch 101 of the fixed chamber 10. The sealing structure 70 can effectively prevent the leakage of high-temperature smoke or the intrusion of external cold air during the fire test, ensuring the stability of parameters such as temperature and smoke concentration inside the test chamber and improving the accuracy of test data.

[0084] In order to conduct fire tests, in this embodiment, the interior and / or exterior of the fixed compartment 10 and / or the movable compartment 20 are provided with test components for fire testing.

[0085] Below are some examples of test components. In actual operation, various test components can be combined and used in the fire test chamber disclosed in this application as needed to achieve the test objectives of fire testing.

[0086] I. Internal Testing Components (Interior of Fixed Chamber 10 / Moving Chamber 20)

[0087] Internal testing components act directly on the test space to simulate fire environments, monitor the combustion process, and observe specimen reactions. Common types and effects include:

[0088] 1. Ignition and combustion system: such as gas nozzle, electric heater, igniter, etc., can precisely control the position, power and ignition time of the fire source to simulate different fire scenarios (such as initial small fire, flashover, continuous combustion, etc.).

[0089] Function: To ensure the controllability and repeatability of fire simulation and to meet the requirements of different testing standards (such as ISO, GB, etc.) for fire source conditions.

[0090] 2. Temperature monitoring components: including thermocouples, infrared thermometers, etc., distributed in different locations inside the chamber (such as the top, side, and surface of the specimen) to collect temperature data in real time.

[0091] Function: To accurately record the temperature field distribution and heating rate within the test space, reflecting the fire spread pattern and the temperature resistance performance of the specimen.

[0092] 3. Gas Analysis Components

[0093] Such as oxygen sensors, carbon monoxide sensors, and smoke concentration detectors, which monitor changes in gas composition during combustion (such as oxygen consumption rate and toxic gas concentration).

[0094] Purpose: To assess the fire hazard (such as the risk of suffocation and poisoning), and to analyze the completeness of combustion and the characteristics of the combustion products of the specimen.

[0095] 4. Specimen fixing and monitoring device

[0096] Fixtures and load-bearing supports are used to fix test samples (such as building materials and electrical equipment) and, together with displacement sensors and stress sensors, monitor the deformation, weight loss, and structural failure of the test pieces in a fire.

[0097] Purpose: To quantify the fire resistance limit and combustion performance of test specimens (such as whether they drip or spread), and to provide data for the fire resistance rating of materials.

[0098] II. External Test Components (External components of Fixed Chamber 10 / Moving Chamber 20)

[0099] External testing components are mainly used to assist in test control, data processing, and safety assurance. Common types and effects include:

[0100] 1. Control System

[0101] Devices such as PLC controllers, touch screens, and computer terminals are connected to internal sensors and actuators (such as igniters and temperature controllers) to enable the setting, real-time control, and automated operation of test parameters.

[0102] Function: To improve the convenience of test operations, reduce human error, and support the programmed simulation of complex fire scenarios (such as heating according to a preset curve).

[0103] 2. Data Acquisition and Storage System

[0104] It includes data loggers, servers, etc., which receive and store signals from internal sensors, and can generate temperature-time curves, gas concentration change charts, etc.

[0105] Function: To enable complete retention and traceability of experimental data, facilitating subsequent analysis, report generation, and experiment reproduction.

[0106] 3. Safety protection components

[0107] External alarms such as temperature alarms, smoke alarms, and emergency stop buttons are installed on the outside of the chamber. When the parameters inside the chamber exceed the safe range, an alarm is triggered or the test is automatically terminated.

[0108] Function: To ensure the safety of testing equipment and operators, and to prevent fires from getting out of control or leaks of harmful gases.

[0109] In summary, the testing components function by simulating fire environments, monitoring key parameters, and ensuring test safety, enabling the electric motorcycle telescopic fire test chamber to efficiently complete various tests such as material fire resistance, fire spread patterns, and smoke toxicity, providing reliable technical support for fire protection research and product certification.

[0110] The above description is a specific implementation of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A telescopic fire test chamber for electric motorcycles, characterized in that, include: The fixed compartment (10) has a first accommodating cavity, and the front of the fixed compartment (10) is provided with a front hatch (101); The movable cabin (20) has a second accommodating cavity. The movable cabin (20) is slidably disposed in the fixed cabin (10) through the front hatch (101). The rear end of the movable cabin (20) is provided with a rear hatch (201), and the front end is provided with a hatch (202) to facilitate entry into the movable cabin (20). A walking mechanism (30) is provided between the inner wall of the fixed chamber (10) and the outer wall of the movable chamber (20). The movable chamber (20) moves relative to the fixed chamber (10) through the walking mechanism (30) to change the length of the internal test space of the fire test chamber. An active panel assembly (40) is disposed within the fixed compartment (10) and is used to be horizontally connected to the rear end of the active compartment (20) to extend the length of the active compartment (20).

2. The electric motorcycle telescopic fire test chamber according to claim 1, characterized in that, The walking mechanism (30) includes: The inner track (301) is provided on the upper and lower parts of the inner wall of the fixed cabin (10); The outer track (302) is located outside the fixed cabin (10) and corresponds to the inner track (301) located at the lower part of the fixed cabin (10); The walking wheel assembly (303) rolls along the inner track (301) and the outer track (302). The walking wheel assembly (303) includes a first walking wheel (3031) rotatably disposed at the lower front end of the active cabin (20) and a second walking wheel (3032) and a third walking wheel (3033) disposed at the upper and lower rear ends of the active cabin (20).

3. The electric motorcycle telescopic fire test chamber according to claim 2, characterized in that, The inner track (301) and the outer track (302) are both conical. The outer circumference center of the first traveling wheel (3031), the second traveling wheel (3032) and the third traveling wheel (3033) are all provided with conical grooves (3034). The conical grooves (3034) are adapted to the conical track surface. The first traveling wheel (3031), the second traveling wheel (3032) and the third traveling wheel (3033) are all rotatably mounted on the movable cabin (20) through the mounting base (3035). The first traveling wheel (3031) is a brake wheel.

4. The electric motorcycle telescopic fire test chamber according to claim 3, characterized in that, The movable plate assembly (40) includes a support plate (401) and a lifting mechanism (402) disposed at the bottom of the four corners of the support plate (401) for driving the support plate (401) to rise and fall. The fixed end of the lifting mechanism (402) is fixed to the lower inner wall of the fixed compartment (10), and the telescopic end of the lifting mechanism (402) is fixed to the bottom of the support plate (401). The length of the support plate (401) is less than the distance between the two third traveling wheels (3033).

5. The electric motorcycle telescopic fire test chamber according to claim 4, characterized in that, The lifting mechanism (402) is a synchronous hydraulic rod or a synchronous electric push rod.

6. The electric motorcycle telescopic fire test chamber according to claim 2, characterized in that, The movable cabin (20) is provided with a limiting baffle (203) on the front side of the second traveling wheel (3032) and / or the third traveling wheel (3033).

7. The electric motorcycle telescopic fire test chamber according to claim 2, characterized in that, The hatch (202) is opened or closed by rotating horizontally through hinges (204) spaced at intervals along the height direction of the movable cabin (20). The movable cabin (20) is fixed to the movable cabin (20) by a door lock structure (50). A handle (205) is provided on the side of the hatch (202) away from the hinges (204) to facilitate opening or closing the hatch (202). The hatch (202) is provided with an observation window (2021), which is fitted with high-temperature resistant glass, and the high-temperature resistant glass is provided with a heat insulation layer on the outside.

8. The electric motorcycle telescopic fire test chamber according to claim 7, characterized in that, The door lock structure (50) is a latch-type door lock, which includes: A first base (501) is fixedly disposed on the side of the hatch (202), and a fixed shaft (502) is provided on the side of the first base (501) away from the hatch (202); The second base (503) is fixedly installed on the side of the active cabin (20) and has the same height as the first base (501). The second base (503) has a locking post (504) vertically installed on the side away from the active cabin (20). The handle (505) is rotatably sleeved on the fixed shaft (502) and rotates around the central axis of the fixed shaft (502). The front end of the handle (505) is a bent section. The hook (506) has a fixed end with a rotating groove, and the end of the bent section is vertically rotatably disposed in the rotating groove. The free end of the hook (506) has a hook-shaped locking hook (5061) that is fastened to the locking post (504). Rotating the handle (505) causes the fixed end of the hook (506) to rotate, so that the locking hook (5061) is locked or disengaged from the locking post (504).

9. The electric motorcycle telescopic fire test chamber according to any one of claims 2-8, characterized in that, The outer track (302) is provided with a pad (60) at the end away from the fixed compartment (10) to facilitate the entry of electric motorcycles into the fire test chamber. The side of the pad (60) away from the fixed compartment (10) is provided with a slope. A sealing structure (70) is provided between the fixed compartment (10) and the movable compartment (20).

10. The electric motorcycle telescopic fire test chamber according to any one of claims 2-8, characterized in that, The fixed compartment (10) and / or the movable compartment (20) are equipped with test components for fire testing inside and / or outside.

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