Adjustable arrangement device for electric bicycle fire experiment sensor

Abstract

The utility model discloses a kind of adjustable arrangement device for electric bicycle fire experiment sensor, belong to fire safety testing equipment field.The device includes ground fixed assembly, detachable top frame and sensor positioning assembly, adopt tenon-and-mortise structure connection, realize quick assembly and disassembly by modularization design, through square steel, rectangular connecting piece and "U" steel sheet sleeve nesting form spacing accurate sensor positioning matrix, without bolt, rivet or other fastener can complete quick disassembly, and electric bicycle can be freely placed in device below.The device solves the problem that sensor point arrangement is random and inaccurate, sensor height is fixed, and sensor fixed support is inconvenient to disassemble in existing electric bicycle fire experiment, and is suitable for multi-scene electric bicycle fire parameter acquisition.

Description

Technical Field

[0001] This utility model belongs to the field of fire safety testing equipment, and in particular relates to an adjustable arrangement device for electric bicycle fire test sensors. Background Technology

[0002] With the surge in the number of electric bicycles, the need for fire safety testing is becoming increasingly urgent. Fire tests require the use of sensors such as thermocouples and heat flow meters to collect parameter distribution data at different heights and locations.

[0003] The existing sensor positioning methods have the following drawbacks: the temporary sensor mounting brackets have poor stability and are prone to deformation under high temperature environments; the height is fixed, which cannot adapt to the parameter acquisition requirements of different combustion stages; the sensor placement spacing is arbitrary and inaccurate, resulting in poor repeatability of experimental data; and the device is cumbersome to disassemble and assemble, occupying a long time of experimental space.

[0004] Chinese invention patent document CN118178922A discloses a cooling and fire extinguishing device for electric bicycle charging piles. Through the layout of multiple nozzles and fire extinguishing devices, it can extinguish fires from multiple angles on the charging piles and charging electric bicycles under the canopy, effectively extinguishing the fire source. It discloses that multiple sensors are set on one side of the detection board, including smoke sensors, heat source sensors and vehicle detectors, to observe signs of fire. However, it does not conduct further research on the arrangement of the sensors and the portability of the canopy based on the need for collecting parameters of electric bicycle fires.

[0005] Chinese utility model patent CN222561750U discloses a battery thermal runaway detection device for electric bicycles. This device includes a mounting bracket with a controller connected to it. The temperature sensor's detection end is positioned on the electric bicycle's battery. The controller and the temperature sensor work together to measure the battery temperature. When the measured temperature reaches a threshold, the controller triggers an alarm to alert the testing personnel, prompting them to remove the battery or reset the throttle, thus preventing safety hazards caused by battery thermal runaway during testing. However, this patent does not focus on the acquisition of experimental parameters in electric bicycle fires, nor does it provide further improvements to the arrangement of the temperature sensor or the mounting bracket.

[0006] Therefore, there is an urgent need for an adjustable sensor arrangement device for electric bicycle fire experiments that is structurally stable, flexible in adjustment, has good data repeatability, and is easy to assemble and disassemble. Utility Model Content

[0007] The purpose of this invention is to provide an adjustable sensor arrangement device for electric bicycle fire experiments, in order to solve the problems existing in the background art. The device has a scientific and reasonable structural design, strong practicality, and is easy to install and disassemble. It can be quickly adapted to different electric bicycle fire experiment scenarios, realize the precise arrangement of sensors and multi-dimensional parameter acquisition, and at the same time reduce the interference of the bracket itself on the experimental data, thereby improving the reliability of the experimental results.

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

[0009] An adjustable arrangement device for electric bicycle fire test sensors includes a ground fixing component, a top frame component, and a sensor positioning component.

[0010] Four ground fixing components are arranged at the four vertices of the rectangle, and the height of the ground fixing components is greater than the height of the electric bicycle; as a preferred embodiment, the height of the ground fixing components is greater than or equal to 2.0m, so as to completely cover the height range of a typical electric bicycle.

[0011] The top frame assembly is detachably nested and connected to the top of the four ground fixing components;

[0012] The sensor positioning assembly includes several parallel sensor positioning square steels, which are detachably nested and connected to the top frame assembly. Several sensor mounting positions are evenly spaced along the length of the sensor positioning square steels, and the spacing between the parallel sensor positioning square steels is equal to the spacing between the several sensor mounting positions.

[0013] As a preferred embodiment, the above spacing is 20-30cm, and most preferably 25cm.

[0014] Preferably, the ground fixing component includes a vertical square steel and a square base integrally welded thereto. The square base has mounting holes distributed in a rectangular pattern and is anchored to the ground by fasteners. The upper end of the vertical square steel is provided with a "U"-shaped steel plate sleeve, which can be selectively oriented toward the vertical square steel of the adjacent ground fixing component. The top end of the vertical square steel has an insertion hole.

[0015] Preferably, the top frame assembly consists of two short-side square steel bars and two long-side square steel bars; the long-side square steel bars are nested in the insertion holes at the top of the vertical square steel bars via rectangular connectors at both ends, and the short-side square steel bars are nested in "U"-shaped steel sheet sleeves via rectangular connectors at both ends; or, the short-side square steel bars are nested in the insertion holes at the top of the vertical square steel bars via rectangular connectors at both ends, and the long-side square steel bars are nested in "U"-shaped steel sheet sleeves via rectangular connectors at both ends; a plurality of "U"-shaped steel sheet sleeves are evenly spaced on the opposite surfaces of the two short-side square steel bars; the sensor positioning square steel bars are provided with rectangular connectors at both ends for forming a mortise and tenon detachable connection with the "U"-shaped steel sheet sleeves nested on the short-side square steel bars.

[0016] Preferably, two "U"-shaped steel plate sleeves are also provided at the lower end of the vertical square steel near the square base. The two "U"-shaped steel plate sleeves face the vertical square steel of the adjacent ground fixing component, respectively, to detachably fix the lower frame component and enhance the overall torsional resistance.

[0017] Preferably, the adjustable arrangement device for electric bicycle fire test sensors in this technical solution also includes a lower frame assembly. The lower frame assembly consists of two lower frame short side square steels and two lower frame long side square steels, and its ends are nested in a "U"-shaped steel sheet sleeve near the lower end of the vertical square steels and the square base through rectangular connectors.

[0018] Preferably, the adjustable arrangement device for electric bicycle fire test sensors in this technical solution further includes a height adjustment component. The height adjustment component includes a height-adjusting square steel section. The bottom end of the height-adjusting square steel section has a rectangular connector that can be nested and connected to a vertical square steel section with an embedding hole at the top. The top side of the height-adjusting square steel section has a U-shaped steel sleeve. The height-adjusting square steel section is available in various length specifications. As a preferred embodiment, to facilitate obtaining parameters for each height dimension, the length of the height-adjusting square steel section is 20cm, 50cm, or 100cm.

[0019] Preferably, the square steel, square base, and rectangular connectors in the adjustable arrangement device for electric bicycle fire test sensors of this technical solution are all made of heat-resistant materials, such as 304 stainless steel square steel, anodized aluminum alloy square steel, etc.

[0020] The above-mentioned technical solutions adopted in the embodiments of this utility model can achieve the following beneficial effects:

[0021] (i) A fire test space specifically for electric bicycles was constructed, which does not affect the placement of electric bicycles on the ground and simulates the real fire conditions of electric bicycles.

[0022] (ii) Modular connection design, mortise and tenon detachable structure facilitates assembly, transportation and storage, and can be quickly reused in different experimental sites.

[0023] (iii) The spacing between the square steel for sensor positioning and the spacing between several sensor mounting positions are designed to be equal, forming a sensor array with precise positioning, ensuring the comparability and repeatability of sensor data.

[0024] (iv) The height adjustment component meets the parameter acquisition requirements of different experimental schemes and combustion stages.

[0025] (v) It is made of heat-resistant material and rigidly connected to the ground through a square base. It can withstand thermal deformation in high-temperature environments and is easy to reuse. Attached Figure Description

[0026] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0027] Figure 1 : Schematic diagram of the overall structure of this utility model

[0028] Figure 2 Schematic diagram of the height adjustment component in this utility model

[0029] Figure 3 A partially enlarged schematic diagram of the connection between the lower frame component and the ground fixing component in this utility model.

[0030] Figure 4 A partially enlarged schematic diagram of the connection between the top frame component and the ground fixing component in this utility model.

[0031] Figure 5 A partially enlarged schematic diagram of the connection between the height adjustment component and the ground fixing component in this utility model.

[0032] Figure 6 A partially enlarged schematic diagram of the connection between the sensor positioning component and the top frame component in this utility model.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1-Vertical square steel; 2-Square base; 3-Base mounting hole; 4-Short side square steel of lower frame; 5-Long side square steel of lower frame; 6-"U" shaped steel sheet sleeve; 7-Short side square steel of top frame; 8-Long side square steel of top frame; 9-Sensor positioning square steel; 10-Sensor mounting hole; 11-Rectangular connector; 12-Height adjustment square steel section;

[0035] If the same or similar structure is marked only once in the accompanying drawings, and the other unmarked similar parts have the same structure as the marked parts, they are also within the protection scope of this utility model. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0037] The following detailed description, in conjunction with the accompanying drawings, describes an adjustable arrangement device for experimental sensors in electric bicycle fires, based on various embodiments of the present invention.

[0038] Reference Figures 1 to 6 As shown, this utility model embodiment provides an adjustable arrangement device for electric bicycle fire test sensors, including a ground fixing component, a top frame component, and a sensor positioning component;

[0039] See Figure 1 Four ground fixing components are arranged at the four vertices of the rectangle. The ground fixing components include vertical square steel 1 and square base 2. The vertical square steel 1 and square base 2 are integrated welded structures. Four base mounting holes 3 are evenly distributed on the base. The base is anchored to the ground by fastening screws to ensure overall stability and anti-overturning ability. The height is 2.0m, which completely covers the height range of a typical electric bicycle, thus creating a fire test space specifically for electric bicycles.

[0040] like Figure 1 , Figure 4 As shown, a U-shaped steel sleeve 6 is provided at the upper end of the vertical square steel 1. The U-shaped steel sleeve 6 can be selectively oriented toward the adjacent vertical square steel 1. The top end of the vertical square steel 1 has an embedding hole. The U-shaped steel sleeve 6 and the embedding hole are used for nested connection with the top frame assembly. The top frame assembly is detachably nested and connected to the top of the four ground fixing assemblies.

[0041] In this embodiment, the "U"-shaped steel sheet sleeve 6 is a sleeve with a rectangular opening at the top and closed on all sides, used to nest and accommodate the rectangular connector 11 set at the end of each square steel.

[0042] like Figure 1 , Figure 4As shown, the top frame assembly consists of two short-side square steel bars 7 and two long-side square steel bars 8. The lengths of the short-side square steel bars 7 and the long-side square steel bars 8 are 2.0m and 4.0m, respectively. Rectangular connectors 11 are provided on the same surface at both ends of the short-side square steel bars 7 and the long-side square steel bars 8. The short-side square steel bars 7 are nested in the embedding holes at the top of the vertical square steel bars 1 through the rectangular connectors 11 at both ends, and the long-side square steel bars 8 are nested in the "U"-shaped steel sheet sleeves 6 through the rectangular connectors 11 at both ends. Alternatively, in another embodiment, the long-side square steel bars 8 are nested in the embedding holes at the top of the vertical square steel bars 1 through the rectangular connectors 11 at both ends, and the short-side square steel bars 7 are nested in the "U"-shaped steel sheet sleeves 6 through the rectangular connectors 11 at both ends.

[0043] Multiple U-shaped steel sleeves 6 are installed on the opposite surfaces of the two short-side square steel bars 7 of the top frame. Each short-side square steel bar 7 of the top frame has a sensor positioning U-shaped steel sleeve 6 every 25cm along its length. Each short-side square steel bar 7 of the top frame has 7 U-shaped steel sleeves 6. Figure 1 , Figure 6 As shown in the image.

[0044] The sensor positioning assembly is detachably installed on the top frame assembly. Specifically, in this embodiment, the sensor positioning assembly includes 7 parallel sensor positioning square steels 9, each 4.0m long. Rectangular connectors 11 are provided on the same surface at both ends of the sensor positioning square steels 9. A mortise and tenon joint is formed by a U-shaped steel sleeve 6 nested on the short side square steel 7 of the top frame.

[0045] Sensor mounting positions are set every 25cm along the length of the sensor positioning square steel 9. In this embodiment, 15 sensor mounting positions are set on each sensor positioning square steel 9. The spacing between the sensor positioning square steel 9 and the spacing between the sensor mounting positions are equal to 25cm. This can form a uniform and precise sensor array, so that the data collected by the sensors in the same spatial position under different experimental conditions (such as different brands of electric bicycles, different battery types, and different experimental batches) can be directly compared. Under the same experimental conditions (such as the same electric bicycle, the same batch of batteries, and the same environmental parameters), the sensor arrangement position can be accurately reproduced when the experiment is repeated multiple times.

[0046] Two U-shaped steel sleeves 6 are also installed at the lower end of the vertical square steel 1 near the square base 2. The two U-shaped steel sleeves 6 face the adjacent vertical square steel 1 respectively. Figure 1 As shown.

[0047] In this embodiment, as Figure 1As shown in Figure 3, the system also includes a lower frame assembly, which consists of two long-side square steel bars 5 and two short-side square steel bars 4. The length of the long-side square steel bars 5 is equal to the length of the long-side square steel bars 8 of the top frame, and the length of the short-side square steel bars 4 is shorter than the short-side square steel bars 7 of the top frame by two vertical square steel bars 1. Alternatively, in another embodiment, corresponding to a change in the connection method between the top frame assembly and the ground fixing assembly, the length of the short-side square steel bars 4 is equal to the short-side square steel bars 7 of the top frame, and the length of the long-side square steel bars 5 is shorter than the length of the long-side square steel bars 8 of the top frame by two vertical square steel bars 1. Rectangular connectors 11 are provided on the same side at both ends of the long-side square steel bars 5 and the short-side square steel bars 4, which are nested and connected by inserting into the U-shaped steel sleeves 6 at the lower end of the vertical square steel bars 1. This frame, together with the ground fixing assembly, forms a stable lower support structure, enhancing the overall torsional resistance.

[0048] In this embodiment, as Figure 2 As shown, it also includes a height adjustment component, which includes a height adjustment square steel section 12. The bottom end of the height adjustment square steel section 12 is provided with a rectangular connector 11, which can be nested and connected to the embedding hole at the top of the vertical square steel 1. The top end of the height adjustment square steel section 12 is provided with an embedding hole, and the side of the top end is provided with a "U"-shaped steel sheet sleeve 6. The height adjustment square steel section 12 is provided with various length specifications, with lengths of 20cm, 50cm and 100cm respectively. By combining adjustable square steel sections 12 and vertical square steel sections 1 at different heights, and then nesting the top frame assembly with the height adjustment assembly, four height adjustments of 2.0m, 2.2m, 2.5m, and 3.0m can be achieved. The 2.0m height is suitable for electric bicycle fire experiments in low-ceilinged spaces such as small residential apartments and storage rooms, reflecting the fire spread characteristics in confined spaces. The 2.2m height corresponds to the net height environment of common indoor charging locations such as centralized charging rooms, ensuring that the experimental results accurately reflect actual usage scenarios. The 2.5m height is suitable for larger spaces such as underground garages or parking garages, facilitating the study of the development patterns of multi-vehicle or whole-vehicle fires in medium-height spaces. The 3.0m height is designed for high-ceiling environments such as open carports, factories, or large experimental halls, meeting the needs of fire plume and jet monitoring in intense fire conditions and multi-vehicle combustion experiments. These four heights cover the ceiling height limitations of common electric bicycle usage scenarios, facilitating device installation in actual experimental environments.

[0049] Since the device is mainly located outside the combustion zone in the electric bicycle fire test, and the temperature range it needs to withstand is mainly concentrated between 150-400℃, the square steel, square base, and rectangular connectors in the adjustable arrangement device of the electric bicycle fire test sensor in this embodiment are all made of heat-resistant materials, such as 304 stainless steel square steel, anodized aluminum alloy square steel, etc., which can withstand high temperatures continuously and be reused.

[0050] In experimental applications, the adjustable arrangement device for electric bicycle fire test sensors provided in this embodiment is first assembled. A rectangular area of ​​4.0m × 2.0m is measured and marked in the field. Holes are drilled at the four corners and ground fixing components are installed. According to the required arrangement height for the experiment, a suitable height-adjustable square steel section 12 is selected. The required height is achieved by nesting the ground fixing components and the height-adjustable components. Subsequently, the lower frame assembly and the top frame assembly are installed in sequence, and the seven sensor positioning square steels 9 are inserted into the "U"-shaped steel sleeves 6 on the short side square steel 7 of the top frame. Sensors are installed at the sensor mounting positions to form a uniform sensor matrix. The electric bicycle can be directly placed on the ground area below the adjustable arrangement device for electric bicycle fire test sensors to collect fire test data such as temperature and heat flow.

[0051] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. An adjustable arrangement device for electric bicycle fire test sensors, characterized in that, Includes ground fixing components, top frame components, and sensor positioning components; The four ground fixing components are arranged at the four vertices of the rectangle, and the height of the ground fixing components is greater than the height of the electric bicycle; The top frame assembly is detachably nested and connected to the top of the four ground fixing components; The sensor positioning assembly includes several parallel sensor positioning square steels (9), which are detachably nested and connected to the top frame assembly; the sensor positioning square steels (9) are provided with several sensor mounting positions at equal intervals along the length direction, and the spacing between the several parallel sensor positioning square steels (9) is equal to the spacing between the several sensor mounting positions.

2. The adjustable arrangement device for electric bicycle fire test sensors as described in claim 1, characterized in that, The ground fixing component includes a vertical square steel (1) and a square base (2) integrally welded thereto. The square base is provided with mounting holes (3) distributed in a rectangular pattern and is anchored to the ground by fasteners. The upper end of the vertical square steel (1) is provided with a "U"-shaped steel plate sleeve (6). The "U"-shaped steel plate sleeve (6) can be selectively oriented toward the vertical square steel (1) of the adjacent ground fixing component. The top end of the vertical square steel (1) has an embedding hole.

3. The adjustable arrangement device for electric bicycle fire test sensors as described in claim 2, characterized in that, Two "U"-shaped steel sleeves (6) are also provided near the square base (2) at the lower end of the vertical square steel (1). The two "U"-shaped steel sleeves (6) face the vertical square steel (1) of the adjacent ground fixing component.

4. The adjustable arrangement device for electric bicycle fire test sensors as described in claim 2, characterized in that, The top frame assembly consists of two short-side square steel bars (7) and two long-side square steel bars (8); rectangular connectors (11) are provided on the same surface at both ends of the short-side square steel bars (7) and the long-side square steel bars (8); The long side square steel (8) of the top frame is nested in the embedding hole at the top of the vertical square steel (1) through the rectangular connectors (11) at both ends; the short side square steel (7) of the top frame is nested in the "U"-shaped steel sheet sleeve (6) through the rectangular connectors (11) at both ends; or, the short side square steel (7) of the top frame is nested in the embedding hole at the top of the vertical square steel (1) through the rectangular connectors (11) at both ends; the long side square steel (8) of the top frame is nested in the "U"-shaped steel sheet sleeve (6) through the rectangular connectors (11) at both ends. Several "U"-shaped steel sheet sleeves (6) are evenly spaced on the opposite surfaces of the two short side square steel bars (7) of the top frame; the sensor positioning square steel bar (9) is provided with rectangular connectors (11) at both ends, which are used to form a tenon-and-mortise detachable connection with the "U"-shaped steel sheet sleeves (6) nested on the short side square steel bars (7) of the top frame.

5. The adjustable arrangement device for electric bicycle fire test sensors as described in claim 3, characterized in that, It also includes a lower frame assembly, which consists of two lower frame short side square steels (4) and two lower frame long side square steels (5). Both ends of the lower frame long side square steels (5) and the lower frame short side square steels (4) are provided with rectangular connectors (11), and their ends are nested in the "U"-shaped steel sheet sleeve (6) near the square base (2) at the lower end of the vertical square steel (1) through the rectangular connectors (11).

6. The adjustable arrangement device for electric bicycle fire test sensors as described in claim 2, characterized in that, It also includes a height adjustment component, which includes a height adjustment square steel section (12). The bottom end of the height adjustment square steel section (12) is provided with a rectangular connector (11), which can be nested and connected to the embedding hole at the top of the vertical square steel (1). The top end of the height adjustment square steel section (12) is also provided with an embedding hole, and the side is provided with a "U"-shaped steel sheet sleeve (6). The height adjustment square steel section (12) is provided with various length specifications.

7. The adjustable arrangement device for electric bicycle fire test sensors as described in claim 1, characterized in that, The spacing is 20-30cm.

8. The adjustable arrangement device for electric bicycle fire test sensors as described in claim 1, characterized in that, The height of the ground fixing component is greater than or equal to 2.0m.

9. The adjustable arrangement device for electric bicycle fire test sensors as described in claim 6, characterized in that, The length of the adjustable square steel section (12) is 20cm, 50cm or 100cm.

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