Device for detecting a hydrogen cylinder on board a vehicle

Abstract

The present disclosure relates to a detection device for a vehicle-mounted hydrogen cylinder, comprising a mounting frame, a connecting assembly and a sensor, the mounting frame is capable of being sleeved on the outer periphery of the vehicle-mounted hydrogen cylinder, a plurality of through holes are formed in the mounting frame, the connecting assembly is connected to the outer periphery of the mounting frame and is arranged in one-to-one correspondence with the through holes, and the sensor is arranged in the connecting assembly in one-to-one correspondence. The connecting assembly comprises a base frame, an elastic member and a sensor connecting member, the base frame is connected to the mounting frame, the elastic member abuts between the sensor connecting member and the base frame, and the sensor connecting member is connected to the sensor. The base frame is provided with a first limiting structure matched with the sensor connecting member, when the sensor connecting member is matched with the first limiting structure, the sensor is located on the outer side of the mounting frame, and when the sensor connecting member is disengaged from the first limiting structure, the sensor can abut on the outer periphery of the vehicle-mounted hydrogen cylinder through the through hole. The detection device can be quickly arranged while avoiding the loss of coupling agent, and the accuracy of detecting the vehicle-mounted hydrogen cylinder is improved.

Description

Technical Field

[0001] This disclosure relates to the field of vehicle component testing, and more specifically, to a testing device for an on-board hydrogen cylinder. Background Technology

[0002] In vehicle-mounted hydrogen systems, multiple cylinder groups are typically used. According to standards, these cylinders need to be inspected periodically to determine if they meet subsequent usage requirements. However, surface visual inspection of these cylinders suffers from low efficiency and inaccurate results. Improving accuracy requires larger inspection equipment. Given the high integration of cylinder groups and the small gaps between adjacent cylinders, each cylinder needs to be disassembled and removed from the vehicle for inspection. This process is complex, time-consuming, and ultimately inefficient. Summary of the Invention

[0003] The purpose of this disclosure is to provide a detection device for vehicle-mounted hydrogen cylinders that ensures detection accuracy while reducing detection time.

[0004] To achieve the above objectives, this disclosure provides a detection device for an on-board hydrogen cylinder, including a mounting frame, a connecting assembly, and a sensor.

[0005] The mounting bracket can be fitted onto the outer periphery of the vehicle-mounted hydrogen cylinder, and the mounting bracket has multiple through holes.

[0006] The connecting components are connected to the outer periphery of the rack and are provided in a one-to-one correspondence with the through holes.

[0007] The sensors are installed one-to-one in the connection assembly.

[0008] The connecting assembly includes a base frame, an elastic element, and a sensor connector. The base frame is connected to the arrangement frame. The elastic element abuts against the sensor connector and the base frame. The sensor connector connects to the sensor. The base frame is provided with a first limiting structure that cooperates with the sensor connector. When the sensor connector cooperates with the first limiting structure, the sensor is located outside the arrangement frame. When the sensor connector is disengaged from the first limiting structure, the sensor passes through the through hole and abuts against the outer periphery of the vehicle-mounted hydrogen cylinder.

[0009] Optionally, the base frame includes a housing, end caps, and fasteners.

[0010] The housing covers the outside of the through hole, and the first limiting structure is disposed on the housing. The sensor is disposed inside the housing.

[0011] The end cap is detachably connected to the side of the housing away from the mounting bracket, and the elastic element abuts between the end cap and the sensor connector.

[0012] The fasteners are connected to the housing and the arrangement frame, respectively.

[0013] Optionally, the fastener is magnetically attached to the arrangement frame.

[0014] Optionally, the mounting bracket is made of a magnetically conductive material, and there are two fixing members, which are disposed on both sides of the sensor. Each fixing member includes a magnetically conductive member and a first magnetic member. The first magnetic member is attracted to the magnetically conductive member. The magnetically conductive member is fixedly connected to the housing, and the end of the magnetically conductive member away from the end cap protrudes from the housing and contacts the mounting bracket.

[0015] Optionally, the magnetic conductor includes at least two opposing sidewalls, the first magnetic element is clamped between the two sidewalls, and one end of each sidewall protrudes from the housing. The fixing member also includes a magnetic element fixing piece, which is disposed between the two sidewalls and located on the side of the first magnetic element closer to the arrangement frame. The two ends of the magnetic element fixing piece extend out of the magnetic conductor in the longitudinal direction and are connected to the housing.

[0016] Optionally, the arrangement frame includes multiple arrangement segments connected end to end. Each arrangement segment includes two first arrangement segments and at least one second arrangement segment. The second arrangement segment is hinged to the adjacent arrangement segment. An openable and closable adjusting member is connected between the two first arrangement segments. The adjusting member can move the two first arrangement segments closer to or further apart from each other.

[0017] Optionally, the detection device further includes a toggle plate, which coincides with the central axis of the arrangement frame and is rotatably connected to the arrangement frame along the central axis. The toggle plate is provided with a second limiting structure corresponding to each of the connecting components, and the connecting components are at least partially located in the second limiting structure. When the toggle plate rotates, the sensor connector can be disengaged from the first limiting structure.

[0018] Optionally, the first limiting structure is a groove with an opening at one end, the second limiting structure is a recess, and the sensor connector includes a toggle rod that extends sequentially into the groove and the recess, wherein when the toggle plate rotates, the groove wall of the recess contacts the toggle rod.

[0019] Optionally, the detection device includes multiple connectors, one end of which is connected to the actuating plate. The arrangement frame is provided with multiple arc-shaped holes that correspond one-to-one with the connectors. The arc-shaped holes extend circumferentially, and the other end of the connector is located in the arc-shaped hole.

[0020] Optionally, the actuating plate includes multiple actuating segments and a limiting member connected between two adjacent actuating segments. The actuating segment has a strip-shaped limiting hole formed by bending inward on the side closest to the adjacent actuating segment. The limiting member includes a connecting piece and two movable shafts spaced apart and connected to the connecting piece. The two movable shafts are correspondingly disposed in the strip-shaped limiting hole.

[0021] Through the above technical solution, the mounting bracket can be directly fitted onto the outside of the vehicle-mounted hydrogen cylinder. Sensors are distributed on the mounting bracket via connecting components. The position of all sensors relative to the vehicle-mounted hydrogen cylinder can be adjusted by rotating or moving the mounting bracket. Since the mounting bracket can be directly fitted onto and attached to the vehicle-mounted hydrogen cylinder without additional fixing devices, its size and space requirements during installation are small. It can be installed without disassembling the vehicle-mounted hydrogen cylinder, effectively reducing installation difficulty and significantly shortening the installation time of the detection device. Furthermore, due to the sensor connector and the first limiting structure on the connecting components, both limit the sensors and maintain a distance from the vehicle-mounted hydrogen cylinder during bracket adjustment. This prevents the sensors from contacting the vehicle-mounted hydrogen cylinder during bracket adjustment. After bracket adjustment, disengaging the first limiting structure and sensor connector allows the sensors to rest against the outside of the vehicle-mounted hydrogen cylinder, completing the final sensor deployment. This avoids contact between the sensors and the vehicle-mounted hydrogen cylinder during bracket adjustment, preventing the loss of coupling agent applied to the sensor ends. This ensures both rapid deployment and high accuracy in detecting the vehicle-mounted hydrogen cylinder.

[0022] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a schematic diagram of a detection device for an on-board hydrogen cylinder according to one embodiment of the present disclosure, which is installed on the on-board hydrogen cylinder.

[0025] Figure 2 This is a schematic diagram of a detection device for an on-board hydrogen cylinder according to one embodiment of the present disclosure.

[0026] Figure 3This is an exploded view of the connecting components and sensors in a vehicle-mounted hydrogen cylinder detection device according to one embodiment of the present disclosure.

[0027] Figure 4 This is a schematic diagram of the connection components in a vehicle-mounted hydrogen cylinder detection device according to one embodiment of the present disclosure.

[0028] Figure 5 This is a schematic diagram of the rack and actuation plate in a vehicle-mounted hydrogen cylinder detection device according to one embodiment of the present disclosure.

[0029] Explanation of reference numerals in the attached figures

[0030] 100-Onboard hydrogen cylinder;

[0031] 1-Arching frame; 101-Through hole; 102-Arc-shaped hole; 11-First arrangement section; 12-Second arrangement section; 13-Adjusting component; 131-Fastener; 132-Adjusting nut; 133-Connecting shaft; 14-Limiting retaining ring;

[0032] 2-Connecting assembly; 21-Base frame; 210-First limiting structure; 211-Housing; 212-End cap; 213-Fixing component; 2131-Magnetic conductive component; 2132-First magnetic component; 2133-Magnetic component fixing piece; 214-Guide rod; 215-Guide groove; 22-Elastic component; 23-Sensor connector; 231-Actuating rod; 232-Side retainer; 24-Second magnetic component;

[0033] 3-Sensors;

[0034] 4-Actuating plate; 40-Second limiting structure; 41-Actuating section; 411-Strip-shaped limiting hole; 42-Limiting component; 421-Connecting piece; 422-Moving shaft; 43-Flanged edge;

[0035] 51-Connector; 52-Hinge shaft. Detailed Implementation

[0036] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0037] In this disclosure, unless otherwise stated, directional terms such as "inner" and "outer" are defined in relation to the outline of the corresponding components. The terms "first," "second," etc., are used to distinguish different components and are not sequential or significant. Furthermore, in the following description, when referring to the accompanying drawings, unless otherwise explained, the same reference numerals in different drawings denote the same or similar elements.

[0038] According to one embodiment of this disclosure, such as Figures 1 to 5As shown, a detection device for a vehicle-mounted hydrogen cylinder is provided, including a mounting frame 1, a connecting assembly 2, and sensors 3. The mounting frame 1 can be fitted onto the outer periphery of the vehicle-mounted hydrogen cylinder 100, and the mounting frame 1 has multiple through holes 101. The connecting assembly 2 is connected to the outer periphery of the mounting frame 1 and is arranged one-to-one with the through holes 101. The sensors 3 are arranged one-to-one in the connecting assembly 2. The connecting assembly 2 includes a base frame 21, an elastic element 22, and a sensor connector 23. The base frame 21 is connected to the mounting frame 1, the elastic element 22 abuts against the sensor connector 23 and the base frame 21, and the sensor connector 23 connects to the sensors 3. The base frame 21 is provided with a first limiting structure 210 that cooperates with the sensor connector 23. When the sensor connector 23 cooperates with the first limiting structure 210, the sensor 3 is located outside the mounting frame 1. When the sensor connector 23 is disengaged from the first limiting structure 210, the sensor 3 can pass through the through holes 101 and abut against the outer periphery of the vehicle-mounted hydrogen cylinder 100. Here, the elastic element 22 can be a spring, or a compression rubber element or other elastic structure, and this disclosure does not limit it.

[0039] Through the above technical solution, the mounting frame 1 can be directly fitted onto the outside of the vehicle-mounted hydrogen cylinder 100. The sensors 3 are distributed on the mounting frame 1 via the connecting assembly 2. By rotating or moving the position of the mounting frame 1, the position of all the sensors 3 relative to the vehicle-mounted hydrogen cylinder 100 can be adjusted. Since the mounting frame 1 can be directly fitted onto the vehicle-mounted hydrogen cylinder 100 and fits against it, no additional fixing device is required. Therefore, its body and the space occupied during installation are small. It can be installed without disassembling the vehicle-mounted hydrogen cylinder 100, which can effectively reduce the installation difficulty and thus significantly reduce the installation time of the detection device. In addition, due to the setting of the sensor connector 23 and the first limiting structure 210 on the connecting assembly 2, when the mounting frame 1 is adjusted, the two limit each other, which can keep the sensors 3 separated from the vehicle-mounted hydrogen cylinder 100. In this way, when the mounting frame 1 is adjusted, the sensors 3 will not contact the vehicle-mounted hydrogen cylinder 100. After the mounting frame 1 is adjusted, the first limiting structure 210 and the sensor connector 23 are disengaged, so that the sensors 3 can be pressed against the outside of the vehicle-mounted hydrogen cylinder 100, completing the final installation of the sensors 3. This avoids contact between sensor 3 and vehicle-mounted hydrogen tank 100 during the adjustment of the mounting frame 1, thereby preventing the loss of coupling agent applied to the end of sensor 3. While allowing for rapid setup, it also ensures the accuracy of detection of vehicle-mounted hydrogen tank 100.

[0040] Regarding the limiting method between the first limiting structure 210 and the sensor connector 23, the first limiting structure 210 can be a sliding groove mentioned below, with an opening at one end. The sensor connector 23 can include a toggle rod 231 mentioned below that extends into the sliding groove and the recess in sequence. Moving the toggle rod 231 causes it to slide out of the sliding groove. At this time, the first limiting structure 210 is disengaged from the sensor connector 23, and the elastic member 22 releases its elastic force to press the sensor 3 onto the surface of the vehicle hydrogen tank 100.

[0041] In the following text, the base frame 21 and the arrangement frame 1 are magnetically attached. The first limiting structure 210 may also include a protrusion, and the sensor connector 23 may be provided with a mating groove. When it is necessary to separate the first limiting structure 210 and the sensor connector 23, the base frame 21 can be moved, and the protrusion can move in the mating groove until it slides out of the mating groove. At this time, the sensor connector 23 is separated from the first limiting structure, and the elastic member 22 releases its elastic force to press the sensor 3 onto the surface of the vehicle hydrogen tank 100.

[0042] In addition, such as Figure 3 and Figure 4 As shown, a guide groove 215 can also be provided on the base frame 21. One end of the guide groove 215 can be connected to the opening of the slide groove, and the extension direction of the guide groove 215 and the extension direction of the slide groove form an angle with each other. The angle can be a right angle or an acute angle, and this disclosure does not limit it. Specifically, the extension direction of the guide groove 215 can be the same as the preset direction of the elastic force released by the elastic member 22. In this way, after the toggle rod 231 slides out of the slide groove, it can move along the extension direction of the guide groove 215, so as to avoid the vibration generated when the elastic member 22 releases the elastic force, which would cause the sensor connector 23 to shake and cause the sensor 3 to be offset in the final installation position, thereby improving the installation accuracy of the sensor 3.

[0043] It should be noted that sensor 3 can be an acoustic emission sensor, or it can be set as a vibration sensor or infrared sensor, etc., depending on the detection requirements. This disclosure does not limit this. The diameter of the through hole 101 can also be set to 1.2 to 2 times the diameter of sensor 3. This ensures that sensor 3 can pass through while providing a certain margin of error for the installation of connecting component 2 and sensor 3. It also provides radial compensation space when the elastic element 22 releases its elastic force to move sensor 3, ensuring that sensor 3 will not collide with the mounting bracket 1 when it is attached to the vehicle hydrogen tank 100. Of course, the diameters of multiple through holes 101 can be the same or different. The diameter of through hole 101 can also be set to 2.5 times, 3 times, etc., the diameter of sensor 3, depending on the requirements. This disclosure does not limit this. A limiting ring 14 can also be provided at the edge of the through hole 101. This can facilitate the positioning of connecting component 2 and sensor 3 during installation, ensuring that sensor 3 is directly facing through hole 101. It can also allow the end of sensor 3 coated with coupling agent to be located inside the limiting ring 14 when sensor connector 23 is engaged with first limiting structure 210. Thus, after adjusting the position of the rack 1, when the sensor 3 needs to contact the vehicle hydrogen tank 100, the sensor connector 23 is disengaged from the first limiting structure 210, and the limiting ring 14 can limit the sensor 3 in the radial direction to ensure that the sensor 3 will not deviate when the elastic member 22 releases its elastic force to move the sensor 3 toward the vehicle hydrogen tank 100.

[0044] According to one embodiment of this disclosure, such as Figures 2 to 4As shown, the base frame 21 may include a housing 211, an end cap 212, and a fixing member 213. The housing 211 can cover the outside of the through hole 101, and the first limiting structure 210 is provided on the housing 211. The sensor 3 is disposed in the housing 211. The end cap 212 is detachably connected to the side of the housing 211 away from the arrangement frame 1. The elastic member 22 abuts against the end cap 212 and the sensor connector 23. The fixing member 213 can be connected to the housing 211 and the arrangement frame 1 respectively. Here, the end cap 212 can be the top wall of the housing 211, or the top wall of the housing 211 can have an opening to accommodate the end cap 212. The housing 211 covers the outside of the sensor 3, which can provide a certain degree of protection for the sensor 3. At the same time, the detachable structure between the end cap 212 and the housing 211 can also facilitate the installation of the elastic member 22 from the side of the end cap 212, thereby reducing the possibility of the sensor 3 shifting when the elastic member 22 releases its elastic force due to installation misalignment. Alternatively, the fastener 213 can also be screwed, snap-fitted, or magnetically attached to the mounting bracket 1 as described below; this disclosure does not limit this. When the fastener 213 is detachably connected to the mounting bracket 1, the connecting assembly 2 and the sensor 3 can be connected to the mounting bracket 1 after the mounting bracket 1 is placed outside the vehicle-mounted hydrogen tank 100. Alternatively, they can be connected to the mounting bracket 1 first, and then the mounting bracket 1 with the connecting assembly 2 and the sensor 3 can be placed outside the vehicle-mounted hydrogen tank 100; this disclosure also does not limit this.

[0045] Here, as Figure 2 and Figure 3 As shown, a guide rod 214 can also be connected to the sensor connector 23. One end of the guide rod 214 is connected to the sensor connector 23, and the other end can pass through the end cap 212. The elastic member 22 is sleeved on the outside of the guide rod 214 and abuts against the end cap 212 and the sensor connector 23, thus improving the stability of the elastic member 22's extension and contraction. Both ends of the elastic member 22 can be connected to the end cap 212 and the sensor connector 23, or they can be sleeved only on the guide rod 214. The sensor connector 23 and the end cap 212 can also have retaining edges 232 to connect the ends of the elastic member 22 or to radially limit their movement. This disclosure does not limit this aspect.

[0046] Regarding the connection method between sensor connector 23 and sensor 3, since sensor 3 itself is made of metal materials such as iron or steel, a second magnetic element 24 can be provided on the side of sensor connector 23 near the arrangement frame 1. The second magnetic element 24 can be a magnet, which can attract sensor 3 to ensure a fixed connection between sensor connector 23 and sensor 3. Of course, sensor connector 23 and sensor 3 can also be fixed by screwing or snap-fitting, and this disclosure does not limit this.

[0047] Regarding the connection between the fixing component 213 and the rack 1, the fixing component 213 can magnetically engage with the rack 1. This magnetic engagement eliminates the need for additional tools, allowing for the positioning and fixing of the connecting components. This significantly reduces the installation time of the detection device, improving the assembly efficiency and disassembly flexibility between the connecting component 2 and the rack 1, facilitating the rapid installation of the sensor 3. Furthermore, disassembly requires only a small separating force to detach the connecting component 2 from the rack 1, allowing for timely adjustment of the connecting component 2's position or complete disassembly and storage according to detection needs, enhancing the flexibility and ease of operation of the detection device. The magnetic engagement design also accommodates slight irregularities or curvatures on the surface of the rack 1, ensuring a tight fit between the connecting component 2 and the rack 1 and preventing loosening due to gaps. In addition, the magnetic connection eliminates the need for complex connection holes on the rack 1 or the connecting component 2, reducing damage to their structural strength and ensuring the overall structural stability of the device. The non-rigid contact connection also effectively reduces mechanical impact and frictional wear on the sensor 3 during installation and disassembly, extending the sensor 3's lifespan and reducing maintenance costs.

[0048] It should be noted that the elastic element 22 can exert a downward pressure of 0.01MPa-0.1MPa on the sensor 3. This ensures that when the sensor connector 23 and the first limiting structure 210 are disengaged, the sensor 3 still abuts against the vehicle-mounted hydrogen cylinder 100 to be tested. At the same time, when the force is within this range, the reaction force of the elastic element 22 on the base frame 21 is much smaller than the magnetic force between the fixing element 213 and the arrangement frame 1, so that it does not affect the magnetic connection between the connecting assembly 2 and the arrangement frame 1.

[0049] Furthermore, the mounting frame 1 can be made of a magnetically conductive material, such as... Figure 3 As shown, there can be two fixing members 213, which are arranged on both sides of the sensor 3. The fixing member 213 includes a magnetic conductive member 2131 and a first magnetic member 2132. The first magnetic member 2132 is attracted to the magnetic conductive member 2131. The magnetic conductive member 2131 is fixedly connected to the housing 211, and the end of the magnetic conductive member 2131 away from the end cap 212 protrudes from the housing 211 and contacts the mounting bracket 1. The symmetrical arrangement of two magnetic fixing members 213 can effectively improve the connection stability of the connecting component 2, make the force on the connecting component 2 more uniform, avoid the tilting or loosening of the connecting component 2 due to unilateral force, ensure the contact accuracy between the sensor 3 and the surface of the vehicle hydrogen tank 100, and thus improve the detection accuracy of the sensor 3.

[0050] Furthermore, the arrangement of the fixing member 213 into a magnetic conductive member 2131 and a first magnetic member 2132 also protects the first magnetic member 2132, preventing it from being damaged by direct friction with the arrangement frame 1 or by environmental corrosion, thus extending its service life. Here, the first magnetic member 2132 can be a magnet, and the magnetic conductive member 2131 can be made of iron or high-permeability carbon steel; this disclosure does not limit this.

[0051] The arrangement of the magnetic conductor 2131, with one end away from the end cap 212 protruding from the housing 211 and contacting the mounting bracket 1, allows the magnetic attraction force to be applied more concentratedly, preventing the housing 211 from obstructing the magnetic attraction effect. Furthermore, since the magnetic conductor 2131 protrudes and is only located on both sides of the housing 211, a gap exists between the housing 211 and the mounting bracket 1 during installation. This gap allows installers to observe the inside of the housing 211 to determine the position of the through hole 101. This also helps to position the connecting component 2, ensuring precise alignment between the connecting component 2 and the through hole 101 on the mounting bracket 1, thus preventing the sensor 3 from failing to pass through the through hole 101.

[0052] Furthermore, such as Figure 3 As shown, the magnetic guide 2131 may include at least two opposing sidewalls. The first magnetic member 2132 is clamped between the two sidewalls, and one end of each sidewall protrudes from the housing 211. Thus, both sidewalls of the magnetic guide 2131 stand on the arrangement frame 1. Compared to a structure where only one sidewall stands on the arrangement frame 1, the magnetic connection between the two sidewalls and the arrangement frame 1 can further improve the stability of the magnetic connection between the connecting assembly 2 and the arrangement frame 1. The fixing member 213 also includes a magnetic member fixing piece 2133, which is disposed between the two sidewalls and located on the side of the first magnetic member 2132 closer to the arrangement frame 1. The two ends of the magnetic member fixing piece 2133 extend out of the magnetic guide 2131 along its length and are connected to the housing 211. The magnetic fixing piece 2133 can limit the first magnetic component 2132 to prevent the first magnetic component 2132 from shifting and sliding out of the magnetic conductor 2131, thus avoiding the connection component 2 from falling off due to the first magnetic component 2132 sliding out, and further ensuring connection stability.

[0053] Regarding the clamping method between the first magnetic component 2132 and the magnetic conductor 2131, the magnetic conductor 2131 may consist of only two sidewalls, which can be screwed to the housing 211. In this case, a bolt can pass sequentially through the housing 211 and the two sidewalls, with a nut tightened on the other side. By tightening the nut, the distance between the two sidewalls is continuously reduced until the first magnetic component 2132 is clamped between them. Alternatively, the magnetic conductor 2131 itself may have elasticity to clamp the first magnetic component 2132. The magnetic conductor 2131 can have a V-shaped, U-shaped, H-shaped, or other structures; this disclosure does not limit its specific design.

[0054] According to one embodiment of this disclosure, such as Figure 1 , Figure 2 and Figure 5 As shown, the arrangement frame 1 may include multiple arrangement segments connected end to end. Each arrangement segment may include two first arrangement segments 11 and at least one second arrangement segment 12. The second arrangement segment 12 is hinged to the adjacent arrangement segment, and the hinge point may be provided with a hinge shaft 52. An openable and closable adjusting member 13 connects the two first arrangement segments 11, enabling the two first arrangement segments 11 to move closer or further apart. The number of second arrangement segments 12 can be set according to actual needs; it can be a single segment or multiple segments hinged together. This disclosure does not limit this.

[0055] The mounting bracket 1 has a multi-segment structure. When the vehicle-mounted hydrogen tank 100 is in a confined space or is interfered with by other components, making it impossible to directly mount the mounting bracket 1 onto the vehicle-mounted hydrogen tank 100, the adjusting member 13 can be opened to disconnect the connection between the two first mounting segments 11. In this way, the mounting bracket 1 can change from a ring shape to a strip structure composed of multiple mounting segments. At this time, the strip-shaped mounting bracket can be extended into the confined space, and then the adjusting member 13 can be fastened to fix the mounting bracket 1, thereby restoring the mounting bracket 1 to a ring structure and fixing it to the outside of the vehicle-mounted hydrogen tank 100. This improves the installation adaptability of the detection device in complex environments, thus making it easier to install the sensor 3. The adjusting component 13 can also adjust the diameter of the mounting frame 1 by adjusting the distance between the two first mounting sections 11 to accommodate different sizes of vehicle-mounted hydrogen cylinders 100, or to accommodate different sizes of vehicle-mounted hydrogen cylinders 100, whether in the middle of the cylinder or near the ends. This improves the installation stability of the mounting frame 1 when installed on different sizes or in different positions of vehicle-mounted hydrogen cylinders 100, thereby enhancing the versatility and practicality of the detection device. This eliminates the need to design a dedicated mounting frame 1 for different sizes of vehicle-mounted hydrogen cylinders 100, and ensures the stability of the mounting frame 1 on different vehicle-mounted hydrogen cylinders 100. It also reduces the possibility of sensor 3 shifting due to external force during detection, thus affecting the detection results. This not only reduces detection costs but also improves detection accuracy. Furthermore, the mounting frame 1 has a multi-section structure and can be folded and stored after disassembly when not in use, reducing space occupation and storage costs. Alternatively, the mounting bracket 1 can also be a flexible arc-shaped structure, so that it can be snapped onto the outside of the vehicle-mounted hydrogen cylinder 100 by its own elasticity, or adjacent mounting sections can be connected by springs so that the mounting bracket 1 can adapt to vehicle-mounted hydrogen cylinders 100 of different sizes. This disclosure does not limit this.

[0056] Here, regarding the specific structure of the adjusting component 13, the adjusting component 13 may include a fastener 131, an adjusting nut 132, and a connecting shaft 133. There may be two connecting shafts 133, which are respectively installed on two first arrangement sections 11. One end of the fastener 131 may be hinged to one connecting shaft 133, and the other end may pass through the other connecting shaft 133 and be connected to the adjusting nut 132. When the adjusting nut 132 is unscrewed, the fastener 131 can be separated from the connecting shaft 133, so that the adjusting component 13 is in the open state, allowing the arrangement rack 1 to become a strip structure for folding and storage or installation in confined spaces. When the mounting bracket 1 needs to be fastened after installation, one end of the fastener 131 is passed through the connecting shaft 133, and the adjusting nut 132 is screwed into the fastener 131. By turning the adjusting nut 132, the diameter of the mounting bracket 1 can be adjusted by adjusting the distance between the two first mounting sections 11. At this time, the adjusting nut 132 can be left loose, so that the mounting bracket 1 is loosely fitted on the outer surface of the vehicle hydrogen tank 100. This allows the mounting bracket 1 to be rotated or moved as needed to adjust the relative position of the connecting component 2 and the sensor 3 on the mounting bracket 1 until the position of the mounting bracket 1 is adjusted. Then, the adjusting nut 132 is tightened to fix the mounting bracket 1 against the outer surface of the vehicle hydrogen tank 100, thus completing the mounting of the mounting bracket 1. At this time, the control sensor connector 23 and the first limiting structure 210 are disengaged so that the sensor 3 abuts against the outer surface of the vehicle hydrogen tank 100, thus completing the mounting of the sensor 3.

[0057] According to one embodiment of this disclosure, such as Figure 1 , Figure 2 and Figure 5 As shown, the detection device may further include a toggle plate 4, which may coincide with the central axis of the arrangement frame 1 and be rotatably connected to the arrangement frame 1 along the central axis. The toggle plate 4 is provided with a second limiting structure 40 corresponding to the connecting component 2, and the connecting component 2 is at least partially located within the second limiting structure 40. When the toggle plate 4 rotates, the sensor connector 23 can be disengaged from the first limiting structure 210. Here, the toggle plate 4 and the arrangement frame 1 can be connected by a spring, or by a connection method described below, which includes an arc-shaped hole 102 and a connector 51. This disclosure does not limit the connection method.

[0058] The second limiting structure 40 on the actuating plate 4 is configured in a one-to-one correspondence with the connecting component 2 to form a synchronous transmission structure. By moving the actuating plate 4, the second limiting structure 40 cooperates with the connecting component 2, which simultaneously drives all the sensor connectors 23 on the arrangement frame 1 to disengage from the first limiting structure 210. This quickly completes the synchronous fixing of the sensor 3 and the vehicle-mounted hydrogen cylinder 100 without the need to adjust the sensor status one by one, greatly improving the operating efficiency of the detection device. At the same time, it also avoids the problem of missing some sensors 3 due to the need to adjust the status of each sensor 3, thus ensuring the consistency of the detection status of all sensors 3 and improving the reliability and accuracy of the detection data. In addition, the design of the actuating plate 4 coinciding with the central axis of the arrangement frame 1 and being able to rotate relative to each other makes the rotation operation of the actuating plate 4 easier and smoother. It also ensures that the force exerted by the actuating plate 4 on each connecting component 2 is evenly distributed, making the operation convenient, reducing the labor intensity of the operator, and improving the ease of use of the device.

[0059] Regarding the engagement method between the second limiting structure 40 and the connecting component 2, the second limiting structure 40 can be a protrusion, while the base frame 21 has a mating groove. Moving the actuating plate 4 moves the base frame 21, thereby disengaging the first limiting structure 210 from the sensor connector 23. Alternatively, the sensor connector 23 can have a mating groove, and moving the actuating plate 4 moves the sensor connector 23, thereby disengaging the sensor connector 23 from the first limiting structure 210.

[0060] Or, such as Figure 2 and Figure 5 As shown, the first limiting structure 210 can be a groove with an opening at one end, and the second limiting structure 40 is a groove. The sensor connector 23 can include a lever 231 that extends into the groove and the groove in sequence. When the lever plate 4 rotates, the groove wall can contact the lever 231, causing the lever 231 to move and slide out of the groove. At this time, the first limiting structure 210 is disengaged from the sensor connector 23, and the elastic member 22 releases its elastic force to press the sensor 3 onto the surface of the vehicle hydrogen tank 100.

[0061] According to one embodiment of this disclosure, such as Figure 2 and Figure 5As shown, the detection device may also include multiple connectors 51. One end of each connector 51 can be connected to the actuating plate 4. The arrangement frame 1 has multiple arc-shaped holes 102 corresponding to each connector 51. The arc-shaped holes 102 can extend circumferentially, and the other end of each connector 51 is located within one of the arc-shaped holes 102. The arc-shaped holes 102 provide movement space for the connectors 51, ensuring that the actuating plate 4 can move along a fixed trajectory. Alternatively, one end of the connector 51 can be connected to the arrangement frame 1, and the arc-shaped holes 102 can be located on the actuating plate 4; this disclosure does not limit this. Here, the connector 51 can be a rivet or a fastener. Furthermore, when the arrangement frame 1 is multi-segmented, the arc-shaped holes 102 can also provide displacement compensation when adjusting the diameter of the arrangement frame 1.

[0062] Regarding the structure of the actuating plate 4, the actuating plate 4 can also include multiple actuating segments 41 and limiting members 42 connected between two adjacent actuating segments 41. The side of the actuating segment 41 closest to the adjacent actuating segment 41 is bent inward to form a strip-shaped limiting hole 411. The limiting member 42 includes a connecting piece 421 and two movable shafts 422 spaced apart and connected to the connecting piece 421. The two movable shafts 422 are correspondingly arranged in the strip-shaped limiting hole 411. The actuating plate 4 is configured with multiple actuating segments 41, which facilitates the modular assembly of the actuating plate 4. The movable shafts 422 can be relatively displaced along the extension direction of the strip-shaped limiting hole 411. In this way, the arrangement of the strip-shaped limiting hole 411 and the movable shaft 422 can not only hinge the multiple actuating segments 41, but also allow for a certain displacement compensation when the arrangement frame 1 is adjusted. For example, when the arrangement frame 1 is set to multiple segments, the actuating segment 41 can also be set to correspond one-to-one with the arrangement segment. In this case, the strip-shaped limiting hole 411 can provide a certain displacement space, and when the adjusting component 13 adjusts the diameter of the arrangement frame 1, it can also provide a certain displacement compensation.

[0063] Here, the actuating plate 4 can also be provided with a plate body and a flange 43, which form an angle with each other. In this way, the plate body is connected to the connecting member 51, and the flange 43 is spaced apart from the arrangement frame 1. When the actuating plate 4 is actuated, the flange 43 can be actuated to drive the actuating plate 4 to move. The flange 43 makes it easier for the operator to actuate the actuating plate 4. In addition, when the actuating plate 4 includes the flange 43, the limiting member 42 can be connected to either the plate body of the adjacent actuating section 41 or the flange 43 of the adjacent actuating section 41. This disclosure does not limit this.

[0064] The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0065] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0066] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A detection device for vehicle-mounted hydrogen cylinders, characterized in that, Includes racks, connecting components, and sensors. The mounting bracket can be fitted onto the outer periphery of the vehicle-mounted hydrogen cylinder, and the mounting bracket has multiple through holes. The connecting components are connected to the outer periphery of the rack and are provided in a one-to-one correspondence with the through holes. The sensors are installed one-to-one in the connection assembly. The connecting assembly includes a base frame, an elastic element, and a sensor connector. The base frame is connected to the mounting frame. The elastic element abuts against the sensor connector and the base frame. The sensor connector connects to the sensor. The base frame has a first limiting structure that mates with the sensor connector. When the sensor connector mates with the first limiting structure, the sensor is located outside the mounting frame. When the sensor connector disengages from the first limiting structure, the sensor passes through the through-hole and abuts against the outer periphery of the vehicle-mounted hydrogen cylinder. The detection device further includes a toggle plate, which coincides with the central axis of the arrangement frame and is rotatably connected to the arrangement frame along the central axis. The toggle plate is provided with a second limiting structure corresponding to the connecting components, and the connecting components are at least partially located in the second limiting structure. When the toggle plate rotates, the sensor connector can be disengaged from the first limiting structure.

2. The detection device for vehicle-mounted hydrogen cylinders according to claim 1, characterized in that, The base frame includes a shell, end caps, and fasteners. The housing covers the outside of the through hole, and the first limiting structure is disposed on the housing. The sensor is disposed inside the housing. The end cap is detachably connected to the side of the housing away from the mounting bracket, and the elastic element abuts between the end cap and the sensor connector. The fasteners are connected to the housing and the arrangement frame, respectively.

3. The detection device for vehicle-mounted hydrogen cylinders according to claim 2, characterized in that, The fastener is magnetically attached to the arrangement frame.

4. The detection device for vehicle-mounted hydrogen cylinders according to claim 3, characterized in that, The mounting bracket is made of magnetic material. There are two fixing components, which are located on both sides of the sensor. Each fixing component includes a magnetic component and a first magnetic component. The first magnetic component is attracted to the magnetic component. The magnetic component is fixedly connected to the housing. The end of the magnetic component away from the end cap protrudes from the housing and contacts the mounting bracket.

5. The detection device for vehicle-mounted hydrogen cylinders according to claim 4, characterized in that, The magnetic conductor includes at least two opposing sidewalls, the first magnetic element is clamped between the two sidewalls, and one end of each sidewall protrudes from the housing. The fixing member also includes a magnetic element fixing piece, which is disposed between the two sidewalls and located on the side of the first magnetic element closer to the arrangement frame. The two ends of the magnetic element fixing piece extend out of the magnetic conductor in the longitudinal direction and are connected to the housing.

6. The detection device for vehicle-mounted hydrogen cylinders according to claim 1, characterized in that, The arrangement frame includes multiple arrangement sections connected end to end. Each arrangement section includes two first arrangement sections and at least one second arrangement section. The second arrangement section is hinged to the adjacent arrangement section. An openable and closable adjusting member is connected between the two first arrangement sections. The adjusting member can move the two first arrangement sections closer to each other or further apart.

7. The detection device for vehicle-mounted hydrogen cylinders according to claim 1, characterized in that, The first limiting structure is a groove with an opening at one end. The second limiting structure is a groove. The sensor connector includes a lever that extends into the groove and the groove in sequence. When the lever rotates, the groove wall contacts the lever.

8. The detection device for vehicle-mounted hydrogen cylinders according to claim 1, characterized in that, The detection device includes multiple connectors, one end of which is connected to the actuating plate. The arrangement frame is provided with multiple arc-shaped holes that correspond one-to-one with the connectors. The arc-shaped holes extend circumferentially, and the other end of the connector is located in the arc-shaped hole.

9. The detection device for vehicle-mounted hydrogen cylinders according to claim 1, characterized in that, The actuating plate includes multiple actuating segments and a limiting member connected between two adjacent actuating segments. The side of the actuating segment closest to the adjacent actuating segment is bent inward to form a strip-shaped limiting hole. The limiting member includes a connecting piece and two movable shafts spaced apart and connected to the connecting piece. The two movable shafts are correspondingly arranged in the strip-shaped limiting hole.

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