Detection device for vehicle-mounted hydrogen cylinder

Abstract

The invention relates to a vehicle-mounted hydrogen cylinder detection device which comprises an arrangement frame, connecting assemblies and sensors, the arrangement frame can be arranged on the periphery of a vehicle-mounted hydrogen cylinder in a sleeving mode, a plurality of through holes are formed in the arrangement frame, the connecting assemblies are connected to the periphery of the arrangement frame and correspond to the through holes in a one-to-one mode, and the sensors are arranged in the connecting assemblies in a one-to-one mode. The connecting assembly comprises a base frame, an elastic piece and a sensor connecting piece, the base frame is connected with the arrangement frame, the elastic piece abuts against the position between the sensor connecting piece and the base frame, the sensor connecting piece is connected with a sensor, the base frame is provided with a first limiting structure matched with the sensor connecting piece, and when the sensor connecting piece is matched with the first limiting structure, the sensor connecting piece is connected with the sensor. The sensor is located on the outer side of the arrangement frame, and when the sensor connecting piece is separated from the first limiting structure, the sensor can penetrate through the through hole to abut against the periphery of the vehicle-mounted hydrogen cylinder. Therefore, loss of a coupling agent is avoided while the detection device is rapidly arranged, and the detection accuracy of the vehicle-mounted hydrogen cylinder is improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of vehicle component detection, in particular to a detection device for a vehicle-mounted hydrogen cylinder. BACKGROUND

[0002] In a vehicle-mounted hydrogen system, a plurality of cylinders are generally arranged in a group. According to the standard requirements, the hydrogen cylinders in the hydrogen system need to be detected periodically to determine whether they meet the subsequent use requirements. In the detection method for vehicle-mounted cylinders, if surface visual detection is used, there are problems such as low detection efficiency and low accuracy of detection results. If the detection accuracy is to be improved, large detection equipment is required. However, the integration of the cylinder group is high, and the gap between adjacent cylinders is small. Therefore, the cylinders in the cylinder group need to be disassembled and moved off the vehicle one by one for detection. This not only complicates the detection process, but also requires a lot of time, resulting in low detection efficiency. SUMMARY

[0003] The purpose of the present disclosure is to provide a detection device for a vehicle-mounted hydrogen cylinder to reduce the detection time while ensuring the accuracy of the detection.

[0004] To achieve the above-mentioned purpose, the present disclosure provides a detection device for a vehicle-mounted hydrogen cylinder, comprising a placement frame, a connecting assembly and a sensor,

[0005] The placement frame can be sleeved on the outer periphery of the vehicle-mounted hydrogen cylinder, and a plurality of through holes are formed in the placement frame, The connecting assembly is connected to the outer periphery of the placement frame and is arranged one-to-one corresponding to the through holes, The sensor is arranged one-to-one in the connecting assembly, The connecting assembly comprises a base frame, an elastic member and a sensor connecting member, the base frame is connected to the placement frame, the elastic member is abutted between the sensor connecting member and the base frame, and the sensor connecting member connects 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 outside the placement frame. When the sensor connecting member 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.

[0006] Optionally, the base frame comprises a housing, an end cover and a fixing member, The housing covers the outside of the through hole, and the first limiting structure is arranged on the housing, and the sensor is arranged in the housing, The end cover is detachably connected to the side of the housing away from the placement frame, and the elastic member is abutted between the end cover and the sensor connecting member, The fixing member is connected to the housing and the placement frame, respectively.

[0007] Optionally, the fixing member is magnetically attracted to the arrangement rack.

[0008] Optionally, the arrangement rack is made of magnetic material, the fixing member is two in number and is arranged on two sides of the sensor, the fixing member comprises a magnetic member and a first magnetic force member, the first magnetic force member is attracted to the magnetic member, the magnetic member is fixedly connected to the shell, and an end of the magnetic member away from the end cover protrudes from the shell and is in contact with the arrangement rack.

[0009] Optionally, the magnetic member comprises at least two oppositely arranged side walls, the first magnetic force member is clamped between the two side walls, and one end of the two side walls protrudes from the shell, the fixing member further comprises a magnetic force member fixing sheet, the magnetic force member fixing sheet is arranged between the two side walls and located on the side of the first magnetic force member close to the arrangement rack, wherein the two ends of the magnetic force member fixing sheet in the length direction protrude from the magnetic member and are connected to the shell.

[0010] Optionally, the arrangement rack comprises a plurality of arrangement sections connected end to end, the arrangement sections comprise two first arrangement sections and at least one second arrangement section, wherein the second arrangement section is hinged to the adjacent arrangement section, and an openable and closable adjusting member is connected between the two first arrangement sections, the adjusting member can drive the two first arrangement sections to move closer to or away from each other.

[0011] Optionally, the detection device further comprises a dial plate, the dial plate coincides with the central axis of the arrangement rack, and the dial plate is rotatably connected to the arrangement rack along the central axis relative to the arrangement rack, the dial plate is provided with a second limiting structure corresponding to the connecting assembly, and the connecting assembly is at least partially located in the second limiting structure, when the dial plate rotates, the sensor connecting member can be separated from the first limiting structure.

[0012] Optionally, the first limiting structure is a sliding groove, one end of the sliding groove is provided with an opening, the second limiting structure is a groove, and the sensor connecting member comprises a dial rod which extends into the sliding groove and the groove in sequence, wherein when the dial plate rotates, the groove wall of the groove is in contact with the dial rod.

[0013] Optionally, the detection device comprises a plurality of connecting members, one end of the connecting member is connected to the dial plate, the arrangement rack is provided with a plurality of arc-shaped holes corresponding to the connecting members, the arc-shaped holes extend in the circumferential direction, and the other end of the connecting member is located in the arc-shaped hole.

[0014] Optionally, the toggle plate comprises a plurality of toggle segments and a limiting piece connected between two adjacent toggle segments, one side of the toggle segment close to the adjacent toggle segment is inwardly bent to form a strip-shaped limiting hole, and the limiting piece comprises a connecting piece and two moving shafts spaced apart on the connecting piece, and the two moving shafts are correspondingly arranged in the strip-shaped limiting hole.

[0015] By the above technical solution, the arrangement frame can be directly sleeved outside the vehicle-mounted hydrogen cylinder, the sensors are distributed on the arrangement frame through the connecting assembly, and the positions of all the sensors relative to the vehicle-mounted hydrogen cylinder can be adjusted by rotating or moving the position of the arrangement frame. Since the arrangement frame can be directly sleeved on the vehicle-mounted hydrogen cylinder and adhered thereto without the need of an additional fixing device, the space occupied by the body and the installation process is small, the arrangement can be performed without disassembling the vehicle-mounted hydrogen cylinder, the arrangement difficulty can be effectively reduced, and thus the arrangement time of the detection device is greatly reduced. In addition, since the sensor connecting piece and the first limiting structure are arranged on the connecting assembly, the two are limited when the arrangement frame is adjusted, so that the sensor is spaced apart from the vehicle-mounted hydrogen cylinder. In this way, when the arrangement frame is adjusted, the sensor will not contact the vehicle-mounted hydrogen cylinder, and after the arrangement frame is adjusted, the first limiting structure and the sensor connecting piece are operated to be disengaged, so that the sensor can abut against the outside of the vehicle-mounted hydrogen cylinder, and the final arrangement of the sensor is completed. In this way, the sensor can be prevented from contacting the vehicle-mounted hydrogen cylinder when the arrangement frame is adjusted, so that the coupling agent applied on the end portion of the sensor is prevented from being wasted, the sensor can be quickly arranged, and the detection accuracy of the vehicle-mounted hydrogen cylinder can be ensured.

[0016] Other features and advantages of the present disclosure will be described in detail in the following detailed description section. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings are included to provide a further understanding of the present disclosure and constitute a part of the specification, and are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation on the present disclosure. In the drawings: Figure 1 is a schematic view of a detection device of a vehicle-mounted hydrogen cylinder according to an embodiment of the present disclosure arranged on the vehicle-mounted hydrogen cylinder.

[0018] Figure 2 is a schematic view of a detection device of a vehicle-mounted hydrogen cylinder according to an embodiment of the present disclosure.

[0019] Figure 3 is an exploded view of a connecting assembly and a sensor in a detection device of a vehicle-mounted hydrogen cylinder according to an embodiment of the present disclosure.

[0020] Figure 4 is a schematic view of a connecting assembly in a detection device of a vehicle-mounted hydrogen cylinder according to an embodiment of the present disclosure.

[0021] Figure 5Fig. 1 is a schematic view of a placement rack and a toggle plate in a detection device for a vehicle-mounted hydrogen cylinder according to an embodiment of the present disclosure.

[0022] Legend of reference signs 100 - vehicle-mounted hydrogen cylinder; 1 - placement rack; 101 - through hole; 102 - arc-shaped hole; 11 - first placement section; 12 - second placement section; 13 - adjusting member; 131 - fastener; 132 - adjusting nut; 133 - connecting shaft; 14 - limiting check ring; 2 - connecting assembly; 21 - base frame; 210 - first limiting structure; 211 - housing; 212 - end cover; 213 - fixing member; 2131 - magnetic conducting member; 2132 - first magnetic force member; 2133 - magnetic force member fixing plate; 214 - guide rod; 215 - guide groove; 22 - elastic member; 23 - sensor connecting member; 231 - toggle lever; 232 - limiting edge; 24 - second magnetic force member; 3 - sensor; 4 - toggle plate; 40 - second limiting structure; 41 - toggle section; 411 - strip-shaped limiting hole; 42 - limiting member; 421 - connecting plate; 422 - moving shaft; 43 - flange; 51 - connecting member; 52 - hinged shaft. DETAILED DESCRIPTION

[0023] The specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0024] In the present disclosure, the orientation words such as "inner" and "outer" are defined with respect to the outline of the corresponding components, unless otherwise stated. The use of the terms "first", "second", and the like is intended to distinguish different components, and does not have sequential and important meanings. In addition, in the following description, the same reference signs in different drawings represent the same or similar elements, unless otherwise explained.

[0025] According to an embodiment of the present disclosure, as shown in Fig. 1, a placement rack 1 and a toggle plate 4 are arranged in a detection device for a vehicle-mounted hydrogen cylinder 100. Figures 1 to 5As shown, a detection device for a vehicle-mounted hydrogen cylinder is provided, comprising a mounting frame 1, a connecting assembly 2 and a sensor 3. The mounting frame 1 can be sleeved on the outer periphery of the vehicle-mounted hydrogen cylinder 100, and a plurality of through holes 101 are formed in the mounting frame 1. The connecting assembly 2 is connected to the outer periphery of the mounting frame 1 and is arranged in one-to-one correspondence with the through holes 101, and the sensor 3 is arranged in the connecting assembly 2 in one-to-one correspondence. The connecting assembly 2 comprises a base frame 21, an elastic member 22 and a sensor connecting member 23, the base frame 21 is connected to the mounting frame 1, the elastic member 22 abuts between the sensor connecting member 23 and the base frame 21, and the sensor connecting member 23 connects the sensor 3. The base frame 21 is provided with a first limiting structure 210 matched with the sensor connecting member 23, when the sensor connecting member 23 is matched with the first limiting structure 210, the sensor 3 is located outside the mounting frame 1, and when the sensor connecting member 23 is disengaged from the first limiting structure 210, the sensor 3 can abut against the outer periphery of the vehicle-mounted hydrogen cylinder 100 through the through hole 101. Here, the elastic member 22 can be a spring or other elastic structure such as a compression rubber member, and the present disclosure does not limit this.

[0026] Through the above technical solution, the mounting frame 1 can be directly sleeved on the outside of the vehicle-mounted hydrogen cylinder 100, and the sensors 3 are distributed on the mounting frame 1 through the connecting assembly 2. By rotating or moving the position of the mounting frame 1, the positions of all the sensors 3 relative to the vehicle-mounted hydrogen cylinder 100 can be adjusted. Since the mounting frame 1 can be directly sleeved on the vehicle-mounted hydrogen cylinder 100 and is in close contact with it without the need for additional fixing devices, the space occupied by its body and the installation process is small. The mounting frame 1 can be arranged without the need to disassemble the vehicle-mounted hydrogen cylinder 100, which can effectively reduce the difficulty of arrangement and thus greatly reduce the arrangement time of the detection device. In addition, due to the arrangement of the sensor connecting member 23 and the first limiting structure 210 on the connecting assembly 2, the two can limit when adjusting the mounting frame 1, so that the sensor 3 is spaced apart from the vehicle-mounted hydrogen cylinder 100. In this way, when the mounting frame 1 is adjusted, the sensor 3 will not come into contact with the vehicle-mounted hydrogen cylinder 100, and after the mounting frame 1 is adjusted, the first limiting structure 210 and the sensor connecting member 23 are disengaged, so that the sensor 3 can abut against the outside of the vehicle-mounted hydrogen cylinder 100, and the final arrangement of the sensor 3 is completed. In this way, the sensor 3 can be prevented from coming into contact with the vehicle-mounted hydrogen cylinder 100 when the mounting frame 1 is adjusted, so that the coupling agent applied on the end of the sensor 3 is not wasted, and the accuracy of detection of the vehicle-mounted hydrogen cylinder 100 can be ensured while the sensor 3 is quickly arranged.

[0027] For the limiting mode between the first limiting structure 210 and the sensor connecting piece 23, the first limiting structure 210 can be a sliding groove mentioned below, one end of the sliding groove is provided with an opening, the sensor connecting piece 23 can include a toggle lever 231 mentioned below which sequentially extends into the sliding groove and the groove, the toggle lever 231 is moved, so that the toggle lever 231 slides out of the sliding groove, at this time, the first limiting structure 210 and the sensor connecting piece 23 are separated, the elastic element 22 releases the elastic force to press the sensor 3 on the surface of the vehicle-mounted hydrogen cylinder 100.

[0028] For example, the base frame 21 and the arrangement frame 1 are magnetically attracted and matched in the following text, the first limiting structure 210 can also include a protrusion, the sensor connecting piece 23 can be provided with a matching groove, when it is needed to separate the first limiting structure 210 and the sensor connecting piece 23, at this time, the base frame 21 can be moved, the protrusion can be moved in the matching groove until it slides out of the matching groove, at this time, the sensor connecting piece 23 and the first limiting structure are separated, the elastic element 22 releases the elastic force to press the sensor 3 on the surface of the vehicle-mounted hydrogen cylinder 100.

[0029] In addition, as shown in Figure 3 and Figure 4 The base frame 21 can also be provided with a guide groove 215, one end of the guide groove 215 can be connected at the opening of the sliding groove, and the extension direction of the guide groove 215 and the extension direction of the sliding groove are mutually at an included angle, the angle of the included angle can be a right angle or an acute angle, which is not limited by the present disclosure. Specifically, the extension direction of the guide groove 215 can be the same as the preset direction of the elastic element 22 releasing the elastic force, so that after the toggle lever 231 slides out of the sliding groove, it can be moved along the extension direction of the guide groove 215, to avoid the vibration caused by the elastic element 22 releasing the elastic force from causing the sensor connecting piece 23 to shake, causing the final installation position of the sensor 3 to deviate, to improve the installation accuracy of the sensor 3.

[0030] It should be noted that the sensor 3 can be an acoustic emission sensor, or can be set as a vibration sensor or an infrared sensor according to the detection requirement, and the present disclosure does not make any limitation on this. The diameter of the through hole 101 can also be set to 1.2 to 2 times the diameter of the sensor 3, so as to not only ensure that the sensor 3 can pass through, but also provide a certain fault tolerance space for the installation of the connecting assembly 2 and the sensor 3, and provide a radial compensation space during the movement of the sensor 3 driven by the elastic member 22 releasing the elastic force, so as to ensure that the sensor 3 will not hit the arrangement rack 1 during the process of being attached to the vehicle-mounted hydrogen cylinder 100. Of course, the diameters of the plurality of through holes 101 can be the same or different, and the diameter of the through hole 101 can also be set to 2.5 times, 3 times, etc. of the diameter of the sensor 3 according to the requirement, and the present disclosure does not make any limitation on this. The edge of the through hole 101 can also be provided with a limiting stop ring 14, which can not only facilitate the positioning of the connecting assembly 2 and the sensor 3 during installation, so as to ensure that the sensor 3 can face the through hole 101, but also when the sensor connecting member 23 cooperates with the first limiting structure 210, the end of the sensor 3 coated with the coupling agent can be located on the inner side of the limiting stop ring 14. In this way, after adjusting the position of the arrangement rack 1, the sensor 3 needs to be in contact with the vehicle-mounted hydrogen cylinder 100, at this time, the sensor connecting member 23 is controlled to be separated from the first limiting structure 210, and the limiting stop ring 14 can limit the sensor 3 in the radial direction, so as to ensure that the sensor 3 will not be offset when the elastic member 22 releases the elastic force to drive the sensor 3 to move to the vehicle-mounted hydrogen cylinder 100.

[0031] According to an embodiment of the present disclosure, as Figures 2 to 4As shown, the base frame 21 can include a shell 211, an end cover 212 and a fixing member 213, the shell 211 can cover the outside of the through hole 101, and the first limiting structure 210 is arranged on the shell 211, and the sensor 3 is arranged in the shell 211. The end cover 212 is detachably connected to the side of the shell 211 away from the arrangement frame 1, the elastic member 22 is abutted between the end cover 212 and the sensor connecting piece 23, and the fixing member 213 can be connected with the shell 211 and the arrangement frame 1 respectively. Here, the end cover 212 can be the top wall of the shell 211, or the top wall of the shell 211 can be provided with an opening for accommodating the end cover 212. The shell 211 covers the outside of the sensor 3, which can provide a certain protection for the sensor 3, and the detachable structure between the end cover 212 and the shell 211 can facilitate the installation of the elastic member 22 from the side of the end cover 212, thereby reducing the possibility of the sensor 3 being offset when the elastic member 22 releases the elastic force due to the installation offset. In addition, the fixing member 213 can be screwed, clamped or magnetically attracted to the arrangement frame 1, and the present disclosure does not limit this. When the fixing member 213 is detachably connected with the arrangement frame 1, the connecting assembly 2 and the sensor 3 can be selected to be placed outside the vehicle-mounted hydrogen cylinder 100 after being connected to the arrangement frame 1. It can also be connected to the arrangement frame 1 first, and then the arrangement frame 1 with the connecting assembly 2 and the sensor 3 is arranged outside the vehicle-mounted hydrogen cylinder 100, and the present disclosure also does not limit this.

[0032] Here, as shown in Figure 2 and Figure 3 The sensor connecting piece 23 can also be connected with a guide rod 214, one end of the guide rod 214 is connected to the sensor connecting piece 23, the other end can pass through the end cover 212, the elastic member 22 is sleeved outside the guide rod 214, and is abutted between the end cover 212 and the sensor connecting piece 23, so that the stability of the elastic member 22 in extension and contraction can be improved. The two ends of the elastic member 22 can be connected with the end cover 212 and the sensor connecting piece 23, or can be only sleeved on the guide rod 214, and the sensor connecting piece 23 and the end cover 212 can also be formed with a retaining edge 232 to connect or radially limit the end of the elastic member 22, and the present disclosure does not limit this.

[0033] As for the connection mode of the sensor connecting piece 23 and the sensor 3, since the sensor 3 itself is made of metal materials such as iron and steel, one side of the sensor connecting piece 23 close to the arrangement frame 1 can be provided with a second magnetic member 24, which can be a magnet, and can attract the sensor 3 to ensure the fixed connection of the sensor connecting piece 23 and the sensor 3. Of course, the sensor connecting piece 23 and the sensor 3 can also be fixed by screwing or clamping, and the present disclosure does not limit this.

[0034] For the connection mode between the fixing member 213 and the arrangement rack 1, the fixing member 213 can be magnetically attracted to the arrangement rack 1. The magnetic attraction can complete the positioning and fixing of the connecting assembly without the help of additional tools, greatly shortening the installation time of the detection device and improving the assembly efficiency and disassembly flexibility between the connecting assembly 2 and the arrangement rack 1, that is, the sensor 3 can be quickly installed. At the same time, only a small separation force needs to be applied to separate the connecting assembly 2 from the arrangement rack 1, so as to adjust the position of the connecting assembly 2 or disassemble and store the whole in time according to the detection requirements, improving the flexibility and operation convenience of the detection device. The design of magnetic attraction can also adapt to the slight concave-convex or arc of the surface of the arrangement rack 1, ensuring the close fit between the connecting assembly 2 and the arrangement rack 1, avoiding the connection loosening caused by the gap. In addition, the magnetic connection does not need to open complex connection holes on the arrangement rack 1 or the connecting assembly 2, reducing the damage to the structural strength of the two, ensuring the structural stability of the whole device, and the non-rigid contact connection mode can also effectively weaken the mechanical impact and friction loss of the sensor 3 during installation and disassembly, prolonging the service life of the sensor 3 and reducing the maintenance cost.

[0035] It should be noted that the elastic member 22 can form a downward pressure of 0.01MPa-0.1MPa on the sensor 3, so that when the sensor connecting member 23 and the first limiting structure 210 are separated, the sensor 3 can be in abutment with the vehicle-mounted hydrogen cylinder 100 to be detected. At the same time, when the force is within the range, the reaction force of the elastic member 22 on the base frame 21 is also much smaller than the magnetic force between the fixing member 213 and the arrangement rack 1, so that it does not affect the magnetic attraction connection between the connecting assembly 2 and the arrangement rack 1.

[0036] Further, the arrangement rack 1 can be a magnetic conductive material, such as Figure 3 As shown, the number of fixing members 213 can be two, and arranged on both sides of the sensor 3. The fixing member 213 includes a magnetic conductive member 2131 and a first magnetic force member 2132, the first magnetic force member 2132 is adsorbed on the magnetic conductive member 2131, the magnetic conductive member 2131 is fixedly connected with the shell 211, and one end of the magnetic conductive member 2131 away from the end cover 212 protrudes from the shell 211 and contacts with the arrangement rack 1. The two symmetrically arranged fixing members 213 with magnetism can effectively improve the connection stability of the connecting assembly 2, so that the connecting assembly 2 receives more uniform force, avoiding the inclination or loosening of the connecting assembly 2 caused by unilateral force, ensuring the fitting precision of the sensor 3 and the surface of the vehicle-mounted hydrogen cylinder 100, and improving the detection precision of the sensor 3.

[0037] In addition, the fixed part 213 is split into a magnetic conducting part 2131 and a first magnetic force part 2132, which can also protect the first magnetic force part 2132 from being damaged by friction with the arrangement rack 1 or environmental corrosion, thereby prolonging the service life of the first magnetic force part 2132. Here, the first magnetic force part 2132 can be a magnet, and the magnetic conducting part 2131 can be iron or a high-permeability carbon steel material, which is not limited in the present disclosure.

[0038] In addition, the fixed part 213 is split into a magnetic conducting part 2131 and a first magnetic force part 2132, which can also protect the first magnetic force part 2132 from being damaged by friction with the arrangement rack 1 or environmental corrosion, thereby prolonging the service life of the first magnetic force part 2132. Here, the first magnetic force part 2132 can be a magnet, and the magnetic conducting part 2131 can be iron or a high-permeability carbon steel material, which is not limited in the present disclosure.

[0039] Further, as shown in Figure 3 The magnetic conducting part 2131 can include at least two oppositely arranged side walls, and the first magnetic force part 2132 is clamped between the two side walls, and one end of the two side walls protrudes from the shell 211. In this way, the two side walls of the magnetic conducting part 2131 stand on the arrangement rack 1, and compared with the structure in which a single side wall stands on the arrangement rack 1, the magnetic attraction connection between the two side walls of the magnetic conducting part 2131 and the arrangement rack 1 can further improve the stability of the magnetic attraction connection between the connection assembly 2 and the arrangement rack 1. The fixed part 213 also includes a magnetic force part fixing sheet 2133 arranged between the two side walls and located on the side of the first magnetic force part 2132 close to the arrangement rack 1. The two ends of the magnetic force part fixing sheet 2133 in the length direction protrude from the magnetic conducting part 2131 and are connected with the shell 211. The magnetic force part fixing sheet 2133 can limit the first magnetic force part 2132 to prevent the first magnetic force part 2132 from sliding out of the magnetic conducting part 2131 due to deviation, thereby avoiding the connection assembly 2 from falling off due to the first magnetic force part 2132 sliding out, and further ensuring the connection stability.

[0040] Here, for the clamping mode between the first magnetic force piece 2132 and the magnetic conducting piece 2131, the magnetic conducting piece 2131 can only include two side walls, and the two side walls can be screwed with the shell 211, so that the bolts can pass through the shell 211 and the two side walls in turn, and the other side is screwed with a nut. By tightening the nut, the distance between the two side walls is continuously reduced until the two side walls clamp the first magnetic force piece 2132 therein. The magnetic conducting piece 2131 itself can also have elasticity to clamp the first magnetic force piece 2132. Here, the magnetic conducting piece 2131 can be V-shaped, U-shaped, H-shaped, etc., which are not limited in the present disclosure.

[0041] According to an embodiment of the present disclosure, as shown in Figure 1 、 Figure 2 and Figure 5 , the arrangement frame 1 can include a plurality of first and second arrangement sections connected end to end, and the arrangement sections can include two first arrangement sections 11 and at least one second arrangement section 12, wherein the second arrangement section 12 is hinged with the adjacent arrangement section, and the hinge point can be provided with a hinge shaft 52. The two first arrangement sections 11 are connected by an openable and closable adjusting piece 13, and the adjusting piece 13 can drive the two first arrangement sections 11 to move closer to or away from each other. Here, the number of second arrangement sections 12 can be set according to actual needs, which can be one section or multiple sections hinged with each other, which are not limited in the present disclosure.

[0042] The arrangement frame 1 is a multi-section structure, so that when the vehicle-mounted hydrogen bottle 100 is in a narrow space or is interfered by other components, and thus the arrangement frame 1 cannot be directly sleeved on the vehicle-mounted hydrogen bottle 100, the adjusting piece 13 can be opened to disconnect the connection between the two first arrangement sections 11, so that the arrangement frame 1 can be changed from a ring shape into a strip shape composed of multiple arrangement sections. At this time, the strip-shaped arrangement frame can be inserted into the narrow space, and then the adjusting piece 13 is buckled to fix the arrangement frame 1, so that the arrangement frame 1 restores the ring shape and is fixed outside the vehicle-mounted hydrogen bottle 100, thereby improving the installation adaptability of the detection device in a complex environment, and thus the installation of the sensor 3 is more convenient. The adjusting piece 13 can also adjust the diameter of the arrangement frame 1 by adjusting the distance between the two first arrangement sections 11, so as to adapt to vehicle-mounted hydrogen bottles 100 of different sizes, or adapt to the positions of the unified vehicle-mounted hydrogen bottle 100, whether in the middle of the bottle body or in the area close to the two ends, thereby improving the installation firmness of the arrangement frame 1 when installed in different sizes or different positions of the vehicle-mounted hydrogen bottle 100, and improving the universality and practicality of the detection device. In this way, it is not necessary to design a special arrangement frame 1 for vehicle-mounted hydrogen bottles 100 of different sizes, and the firmness of the arrangement frame 1 arranged on different vehicle-mounted hydrogen bottles 100 can also be ensured. The possibility of the sensor 3 being deviated due to external force during the detection process and affecting the detection result can be reduced, and the detection accuracy can be improved. In addition, the arrangement frame 1 is a multi-section structure, so that when detection is not needed, the arrangement frame 1 can also be folded and stored after being disassembled, thereby reducing the occupied space and storage cost. In addition, the arrangement frame 1 can also be an arc-shaped structure with elasticity, so that it can be clamped on the outside of the vehicle-mounted hydrogen bottle 100 by itself, or the adjacent arrangement sections are connected by springs to adapt to vehicle-mounted hydrogen bottles 100 of different sizes, which is not limited in the disclosure.

[0043] Here, for the specific structure of the adjusting piece 13, the adjusting piece 13 can include a fastener 131, an adjusting nut 132, and a connecting shaft 133. The connecting shaft 133 can be two and respectively installed on the two first arrangement sections 11, one end of the fastener 131 can be hinged with one connecting shaft 133, and the other end can pass through the other connecting shaft 133 and be connected with the adjusting nut 132. When the adjusting nut 132 is unscrewed, the fastener 131 can be separated from the connected connecting shaft 133, so that the adjusting piece 13 is in an open state, and the arrangement rack 1 can be changed into a strip-shaped structure for folding storage or installation in a narrow space. When the arrangement rack 1 needs to be buckled after installation, at this time, one end of the fastener 131 passes through the connecting shaft 133, and the adjusting nut 132 is screwed into the fastener 131, at this time, the adjusting nut 132 is screwed, the distance between the two first arrangement sections 11 is adjusted to adjust the diameter of the arrangement rack 1, at this time, the adjusting nut 132 can not be tightened, and the arrangement rack 1 is sleeved on the outer surface of the vehicle-mounted hydrogen bottle 100, so that the arrangement rack 1 can be rotated or moved according to the needs to adjust the relative position of the connection assembly 2 and the sensor 3 on the arrangement rack 1, until the arrangement rack 1 is adjusted, at this time, the adjusting nut 132 is tightened to fix the arrangement rack 1 on the outer surface of the vehicle-mounted hydrogen bottle 100, to complete the arrangement of the arrangement rack 1, at this time, the sensor connecting piece 23 and the first limiting structure 210 are separated, so that the sensor 3 abuts against the outer surface of the vehicle-mounted hydrogen bottle 100, and the arrangement of the sensor 3 is completed.

[0044] According to an embodiment of the present disclosure, as shown in Figure 1 、 Figure 2 and Figure 5 , the detection device can further include a toggle plate 4, the toggle plate 4 can coincide with the center axis of the arrangement rack 1, and the toggle plate 4 can be rotatably connected to the arrangement rack 1 along the center axis. The toggle plate 4 is provided with a second limiting structure 40 corresponding to the connection assembly 2, and the connection assembly 2 is at least partially located in the second limiting structure 40, and when the toggle plate 4 rotates, the sensor connecting piece 23 and the first limiting structure 210 can be separated. Here, the toggle plate 4 and the arrangement rack 1 can be connected by a spring, or the connection mode of the arc-shaped hole 102 and the connecting piece 51 as described below, which is not limited in the present disclosure.

[0045] The second limiting structure 40 on the toggle plate 4 is arranged in one-to-one correspondence with the connecting assembly 2 to form a synchronous transmission structure. By moving the toggle plate 4, the second limiting structure 40 is matched with the connecting assembly 2, all sensor connecting pieces 23 on the arrangement rack 1 can be simultaneously driven to be separated from the first limiting structure 210, so that the synchronous fixing between the sensor 3 and the vehicle-mounted hydrogen bottle 100 is quickly completed, and it is not necessary to adjust the sensor state one by one, and the operation efficiency of the detection device is greatly improved. At the same time, it can also avoid the problem that the missed part of the sensor 3 is caused by adjusting the sensor 3 state one by one, and the problem of missing detection is caused, the consistency of the detection state of all sensors 3 is ensured, and the reliability and accuracy of the detection data are improved. In addition, the design that the toggle plate 4 coincides with the central axis of the arrangement rack 1 and can rotate relatively makes the rotating operation of the toggle plate 4 more labor-saving and smooth, and also can simultaneously ensure that the toggle plate 4 uniformly distributes the force on each connecting assembly 2, is convenient to operate, reduces the labor intensity of the operator, and improves the ease of use of the device.

[0046] As for the matching mode between the second limiting structure 40 and the connecting assembly 2, here, the second limiting structure 40 can be a protrusion, and the base frame 21 is provided with a matching groove. The toggle plate 4 moves to drive the base frame 21 to move, so that the first limiting structure 210 is separated from the sensor connecting piece 23. Of course, the sensor connecting piece 23 can be provided with a matching groove, and the toggle plate 4 moves to drive the sensor connecting piece 23 to move, so that the sensor connecting piece 23 is separated from the first limiting structure 210.

[0047] Alternatively, as shown in Figure 2 and Figure 5 , the first limiting structure 210 can be a sliding groove, one end of the sliding groove is provided with an opening, the second limiting structure 40 is a groove, and the sensor connecting piece 23 can include a toggle rod 231 which extends into the sliding groove and the groove in sequence. When the toggle plate 4 rotates, the groove wall of the groove can contact the toggle rod 231 to drive the toggle rod 231 to move, so that the toggle rod 231 slides out of the sliding groove. At this time, the first limiting structure 210 is separated from the sensor connecting piece 23, and the elastic piece 22 releases the elastic force to press the sensor 3 on the surface of the vehicle-mounted hydrogen bottle 100.

[0048] According to an embodiment of the present disclosure, as shown in Figure 2 and Figure 5As shown, the detection device can further include a plurality of connecting members 51, one end of the connecting member 51 can be connected with the dial plate 4, and the arrangement frame 1 is provided with a plurality of arc-shaped holes 102 corresponding to the connecting members 51, the arc-shaped holes 102 can extend in the circumferential direction, and the other end of the connecting member 51 is located in the arc-shaped hole 102. The arc-shaped hole 102 can provide a movement space for the connecting member 51, so as to ensure that the dial plate 4 can move along a fixed track. Of course, one end of the connecting member 51 can be connected with the arrangement frame 1, and the arc-shaped hole 102 can be arranged on the dial plate 4, which is not limited in the present disclosure. Here, the connecting member 51 can be a rivet or a fastener. In addition, when the arrangement frame 1 is provided in multiple segments, the arc-shaped hole 102 can also provide displacement compensation when adjusting the diameter of the arrangement frame 1.

[0049] For the structure of the dial plate 4, the dial plate 4 can also include a plurality of dial segments 41 and a limiting member 42 connected between two adjacent dial segments 41, one side of the dial segment 41 close to the adjacent dial segment 41 is inwardly bent to form a strip-shaped limiting hole 411, and the limiting member 42 includes a connecting piece 421 and two moving shafts 422 spaced apart on the connecting piece 421, and the two moving shafts 422 are correspondingly arranged in the strip-shaped limiting hole 411. The structure that the dial plate 4 is provided in multiple dial segments 41 can facilitate the modular assembly of the dial plate 4. The moving shaft 422 can relatively displace along the extension direction of the strip-shaped limiting hole 411, so that the strip-shaped limiting hole 411 and the moving shaft 422 are arranged to hinge the plurality of dial segments 41, and also can displace a certain displacement compensation when the arrangement frame 1 is adjusted. For example, when the arrangement frame 1 is provided in multiple segments, the dial segment 41 can also be correspondingly arranged with the arrangement segment, and at this time the strip-shaped limiting hole 411 can provide a certain displacement space, and also can provide a certain displacement compensation when the adjusting member 13 adjusts the diameter of the arrangement frame 1.

[0050] Here, the dial plate 4 can also be provided with a plate body and a flange 43, and the two are at an included angle, so that the plate body is connected with the connecting member 51, and the flange 43 is spaced apart from the arrangement frame 1. When the dial plate 4 is dialed, the flange 43 can be dialed to drive the dial plate 4 to move, and the arrangement of the flange 43 can make it more convenient for the operator to dial the dial plate 4. In addition, when the dial plate 4 includes the flange 43, the limiting member 42 can be connected to the plate body of the adjacent dial segment 41 or the flange 43 of the adjacent dial segment 41, which is not limited in the present disclosure.

[0051] The preferred embodiments of the present disclosure are described in detail above with reference to the drawings, but the present disclosure is not limited to the specific details in the above-described embodiments. Within 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 belong to the protection scope of the present disclosure.

[0052] It should be further noted that various specific technical features described in the above specific embodiments can be combined in any suitable manner, and the disclosure will not be repeated here for various possible combinations.

[0053] In addition, various different embodiments of the disclosure can also be combined with each other as long as they do not contradict the idea of the disclosure, and they should also be considered as disclosed by the 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 arrangement frame and are provided in a one-to-one correspondence with the through holes. The sensors are installed in the connection assembly one by one. 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.

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 any one of claims 1-6, characterized in that, 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.

8. The detection device for vehicle-mounted hydrogen cylinders according to claim 7, 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.

9. The detection device for vehicle-mounted hydrogen cylinders according to claim 7, 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.

10. The detection device for vehicle-mounted hydrogen cylinders according to claim 7, 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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