Vehicle-mounted hydrogen frame variable structure protection device and change method of protection structure

Abstract

The invention relates to the field of hydrogen energy vehicles, in particular to a vehicle-mounted hydrogen frame variable structure protection device and a change method of a protection structure. The mounting assembly is used for mounting the hydrogen tank, so that the hydrogen tank is mounted in the mounting frame; the four swing arms are located on the left side and the right side of the mounting frame respectively, the top ends of the swing arms are rotationally connected to the side wall of the mounting frame, and first guide inclined rails are arranged at the bottom ends of the swing arms; by arranging the first sealing plate, the second sealing plate, the swing arm and the fixed arm, the first sealing plate and the second sealing plate can be arranged up and down to be folded together, so that space is saved, on one hand, the occupied space in the overturning process is reduced, and the situation that operation cannot be conducted in a narrow space is avoided; and on the other hand, potential safety hazards caused to the following passing vehicles can be avoided.

Description

Technical Field

[0001] The present invention relates to the field of hydrogen energy vehicles, and in particular to a vehicle-mounted hydrogen frame variable structure protection device and a method for changing the protection structure. Background Art

[0002] With the continuous development of society, people have higher and higher requirements for environmental protection, especially in the automotive field. Hydrogen energy vehicles are favored by people because they are pollution-free. Hydrogen energy vehicles, as the name implies, need to use hydrogen, which is stored in hydrogen bottles. Hydrogen bottles need to be fixed in hydrogen energy vehicles, usually using hydrogen bottle frames to fix hydrogen bottles.

[0003] For example, the invention patent with application number CN202111123410.1 discloses a chassis layout structure of a hydrogen fuel tractor and a hydrogen fuel tractor, which includes: a frame, the frame includes a first beam and a second beam arranged in parallel; a cab, which is fixed on the top of the frame; a fuel cell engine, which is located between the first beam and the second beam and arranged below the cab; and a hydrogen storage system, which is fixed on the top of the frame and arranged on the back of the cab, and high-voltage accessories are arranged at the bottom of the hydrogen storage system.

[0004] In the prior art, in order to prevent the hydrogen tank from being damaged by being hit by external objects, protective plates are usually installed at both ends of the frame to seal and store the hydrogen tank. However, during the subsequent maintenance of the hydrogen cylinder, maintenance personnel are required to remove and install the protective plates. If the installation method is welding, the protective plates cannot be removed, thereby increasing the difficulty of maintenance.

[0005] To this end, the present invention proposes a vehicle-mounted hydrogen frame variable structure protection device and a method for changing the protection structure to solve the above-mentioned problems. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings existing in the prior art and to propose a vehicle-mounted hydrogen frame variable structure protection device and a method for changing the protection structure.

[0007] In order to achieve the above purpose, the technical solution adopted by the present invention is: a vehicle-mounted hydrogen frame variable structure protection device, comprising:

[0008] An installation frame, the installation frame having an upper and lower layer;

[0009] An installation component, wherein the installation component is used to install the hydrogen tank so as to install the hydrogen tank in the installation frame;

[0010] Four swing arms, the four swing arms are respectively located on the left and right sides of the mounting frame, the top ends of the swing arms are rotatably connected to the side walls of the mounting frame, and the bottom ends of the swing arms are provided with a first guiding ramp;

[0011] Four fixed arms, the four swing arms are respectively located on the left and right sides of the mounting frame, the fixed arms are fixedly connected to the side walls of the mounting frame, the top ends of the fixed arms are provided with second guiding ramps, and the top ends of the fixed arms are in contact with the bottom ends of the swing arms;

[0012] Two first sealing plates, the two first sealing plates are symmetrically located on the upper layer of the mounting frame, and two sides of the first sealing plates are fixedly connected to the swing arm so that the first sealing plates move together with the swing arm;

[0013] Two second sealing plates, the two second sealing plates are symmetrically located at the lower layer of the mounting frame, and two sides of the second sealing plates are slidably connected in the inner tracks of the swing arm and the fixed arm through a sliding assembly;

[0014] The traction assembly is used to pull the second sealing plate to move the second sealing plate upward until the second sealing plate is separated from the fixed arm, and the swing arm drives the second sealing plate to flip under the action of the traction assembly.

[0015] Preferably, the sliding assembly comprises:

[0016] Two upper rollers, the two upper rollers are symmetrically rotatably connected to the two side walls near the top of the second sealing plate, and the upper rollers are slidably connected in the swing arm;

[0017] Two lower rollers are symmetrically rotatably connected to the two side walls close to the bottom end of the second sealing plate, and the lower rollers are slidably connected in the fixed arm.

[0018] Preferably, it also includes:

[0019] A limit assembly, the limit assembly is used to limit the lower roller entering the swing arm, and the limit assembly includes:

[0020] A rotating shaft, the rotating shaft is rotatably connected to the inner wall near the bottom end of the swing arm;

[0021] A rotary valve, the rotary valve being fixedly connected to the surface of the rotating shaft;

[0022] A torsion spring, one end of which is fixedly connected to the inner arm of the swing arm, and the other end of which is fixedly connected to the rotary valve;

[0023] A slideway conduction block is fixedly connected to the top end of the fixed arm and is used to push the rotary valve to rotate the rotary valve.

[0024] Preferably, the installation assembly includes:

[0025] Four sliding seats, two of which are symmetrically arranged on the upper layer of the mounting frame, and the other two are symmetrically arranged on the lower layer of the mounting frame;

[0026] An annular mounting frame, the annular mounting frame is arranged in the sliding seat, and an arc-shaped sliding groove is opened at the top of the annular mounting frame;

[0027] A hydraulic cylinder, wherein the hydraulic cylinder is fixedly connected in the arc-shaped slide groove, and the bottom end of the telescopic rod of the hydraulic cylinder is fixedly connected with an arc-shaped fastening plate;

[0028] A detection mechanism, the detection mechanism is used to detect the sealing information of the left and right sides of the installation frame. When the two sides of the installation frame are not in a sealed state, the arc-shaped fastening plate is away from the hydrogen tank, so that the hydrogen tank can be placed in the two annular mounting frames. When the two sides of the installation frame are sealed, the fastening mechanism is started to fasten the hydrogen tank to the annular mounting frame;

[0029] The detection mechanism includes:

[0030] Two arc-shaped trigger blocks, which are symmetrically distributed on the left and right sides of the mounting frame, and are coaxially fixed to the swing arms at corresponding positions;

[0031] Two pressure sensors are fixedly connected to the side wall of the mounting frame at positions corresponding to the arc-shaped trigger blocks.

[0032] Preferably, the sliding seat is slidably connected to the mounting frame, and the annular mounting frame is rotatably connected in the sliding seat;

[0033] The left and right sides of each layer of the installation frame are fixedly connected with a pushing cylinder, and the ends of the telescopic rods of the pushing cylinders are fixedly connected to the sliding seats at corresponding positions.

[0034] Preferably, it also includes:

[0035] A driving gear, the driving gear being symmetrically rotatably connected to a side wall of the mounting frame;

[0036] An annular rack, the annular rack is fixedly connected to the surface of the annular mounting frame, and the driving rack is meshed with the driving gear;

[0037] A screw rod is rotatably connected in the installation frame, the screw rod is slidably connected to two sliding seats, and the screw rod is threadedly connected to the driving gear.

[0038] Preferably, the traction assembly comprises:

[0039] A pneumatic motor, wherein the pneumatic motor is fixed to the top of the mounting frame;

[0040] A capstan, wherein the capstan is coaxially fixed to an output shaft of the pneumatic motor;

[0041] A steel wire rope, one end of which is wound around the capstan, and the other end of which is rotatably connected to the second sealing plate.

[0042] In order to solve the above problems, the present invention also proposes a protection method for a vehicle-mounted hydrogen frame protection structure, which also includes:

[0043] A controller, wherein the controller is disposed on the mounting frame;

[0044] The protection method of the protective structure includes:

[0045] The controller receives first request information sent by the pressure sensor based on the pressure parameter;

[0046] The controller generates first control information and second control information based on the first request information, wherein the first control information is used to control the hydraulic cylinder on the same side as the pressure sensor to start, and the second control information is used to control the push cylinder on a different side from the pressure sensor to start;

[0047] The controller sends the first control information and the second control information to the hydraulic cylinder and the push cylinder, firstly causing the telescopic rod of the hydraulic cylinder to pull the arc-shaped fastening plate, and then causing the push cylinder to push the sliding seat, so that the hydrogen tank moves to the side of the mounting frame that is not sealed;

[0048] Wherein, when one side of the hydrogen tank needs to be repaired, the pneumatic motor at the corresponding position is started to rotate the swing arm, so that the arc-shaped trigger block moves the pressure sensor, so that the pressure parameter of the pressure sensor increases, and the pressure sensor generates a first request information, and sends the first request information to the controller, so that the controller generates a first control information and a second control information, and sends the first control information and the second control information to the hydraulic cylinder at the same side position and the push cylinder at the other side position. After the hydraulic cylinder receives the first control information, the telescopic rod of the hydraulic cylinder pulls the arc-shaped fastening plate, and after the push cylinder receives the second control information, the push cylinder pushes the sliding seat to move the hydrogen tank to the side of the mounting frame that is not sealed. On the one hand, the end of the hydrogen tank is extended from the inside of the mounting frame, increasing the maintenance space, which is conducive to the maintenance personnel to repair the end of the hydrogen tank. On the other hand, the part of the hydrogen tank originally located in the annular mounting frame is exposed, which is conducive to the maintenance personnel to observe the whole of the hydrogen tank;

[0049] After the maintenance is completed, the swing arm rotates and resets, so that the arc-shaped trigger block is separated from the pressure sensor, so that the pressure value of the pressure sensor is restored, and the pressure sensor generates a second request information, and sends the first request information to the controller, so that the controller generates a third control information and a fourth control information, and sends the third control information and the fourth control information to the hydraulic cylinder at the same side position and the pushing cylinder at the other side position. After the pushing cylinder receives the third control information, the pushing cylinder pulls the sliding seat to make the hydrogen tank away from the mounting frame and is on the sealed side, so that the hydrogen tank is reset. After the hydraulic cylinder receives the fourth control information, the telescopic rod of the hydraulic cylinder pushes the arc-shaped fastening plate to tighten the hydrogen tank to ensure the stability of the hydrogen tank.

[0050] Specifically, it also includes:

[0051] The pressure sensor generates a first request message based on an increase in a pressure parameter;

[0052] The pressure sensor sends first request information to the controller to request the controller to generate first control information and second control information.

[0053] Specifically, it also includes:

[0054] The hydraulic cylinder is started after receiving the first control information, so that the telescopic rod of the hydraulic cylinder pulls the arc-shaped fastening plate;

[0055] The push cylinder receives the second control information to move the hydrogen tank toward the side of the mounting frame that is not sealed.

[0056] Compared with the prior art, the present invention has the following beneficial effects:

[0057] 1. The present invention can arrange the first closing plate, the second closing plate, the swing arm and the fixed arm so that the first closing plate and the second closing plate can be folded together up and down, thereby saving space. On the one hand, it is helpful to reduce the space occupied during the flipping process to avoid being unable to work in a small space. On the other hand, it is helpful to avoid safety hazards caused to vehicles passing behind.

[0058] 2. The present invention provides a hydraulic cylinder, an arc-shaped fastening plate and a pushing cylinder. When one side of the hydrogen tank needs to be repaired, the first sealing plate and the second sealing plate at the corresponding position are first moved away from the mounting frame, and then the hydraulic cylinder at the same side is started, so that the telescopic rod of the hydraulic cylinder pulls the arc-shaped fastening plate to cancel the fastening of the left side of the hydrogen tank. Then the pushing cylinder is started to move the hydrogen tank to the side of the mounting frame that is not sealed. On the one hand, the end of the hydrogen tank is extended from the inside of the mounting frame, increasing the maintenance space, which is convenient for maintenance personnel to repair the end of the hydrogen tank. On the other hand, the part of the hydrogen tank originally located in the annular mounting frame is exposed, which is convenient for maintenance personnel to observe the entire hydrogen tank.

[0059] 3. The present invention sets a driving gear and an annular rack. In the process of pushing the sliding seat by the pushing cylinder, the driving gear slides along the surface of the screw rod. Under the action of the threaded connection, the driving gear rotates. Under the action of meshing, the driving rack drives the annular mounting frame to rotate, thereby rotating the hydrogen tank, reducing visual interference and facilitating maintenance personnel to fully inspect the surface of the hydrogen tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 is a flow chart of the protection method of the present invention;

[0061] Figure 2 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0062] Figure 3 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0063] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0064] Figure 5 for Figure 3 Enlarged view of point B in the middle;

[0065] Figure 6 It is a connection diagram of the hydrogen tank and the annular mounting frame in the present invention;

[0066] Figure 7 is a cross-sectional view of the annular mounting frame of the present invention;

[0067] Figure 8 It is a connection diagram of the pneumatic motor, winch and wire rope in the present invention;

[0068] Fig. 9 A connection diagram of the first sealing plate and the second sealing plate in the present invention;

[0069] Fig.10 It is a connection diagram of the swing arm and the fixed arm in the present invention;

[0070] Fig.11 for Fig.10 Enlarged view of point C in the middle;

[0071] Fig.12 It is a connection diagram of the fixed arm and the slideway conduction block in the present invention;

[0072] Fig.13 is a flow chart of a method for using the pressure sensor of the present invention;

[0073] Fig.14 The present invention is a flowchart of the method for using the hydraulic cylinder and the push cylinder.

[0074] In the figure: mounting frame 1, controller 2, hydrogen tank 3, swing arm 4, first guide ramp 5, fixed arm 6, second guide ramp 7, first closing plate 8, second closing plate 9, upper roller 10, lower roller 11, rotating shaft 12, rotary valve 13, torsion spring 14, slideway conduction block 15, sliding seat 16, annular mounting frame 17, arc-shaped slide groove 18, hydraulic cylinder 19, arc-shaped fastening plate 20, arc-shaped trigger block 21, pressure sensor 22, pushing cylinder 23, driving gear 24, annular rack 25, screw 26, pneumatic motor 27, winch 28, wire rope 29. DETAILED DESCRIPTION

[0075] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0076] like Figures 2 to 12 A vehicle-mounted hydrogen frame variable structure protection device shown includes:

[0077] An installation frame 1, the installation frame 1 has an upper and lower layer;

[0078] An installation component, the installation component is used to install the hydrogen tank 3, so as to install the hydrogen tank 3 in the installation frame 1;

[0079] Four swing arms 4, the four swing arms 4 are respectively located on the left and right sides of the mounting frame 1, the top ends of the swing arms 4 are rotatably connected to the side walls of the mounting frame 1, and the bottom ends of the swing arms 4 are provided with first guiding ramps 5;

[0080] Four fixed arms 6 and four swing arms 4 are respectively located on the left and right sides of the mounting frame 1, the fixed arms 6 are fixedly connected to the side walls of the mounting frame 1, the top ends of the fixed arms 6 are provided with second guiding ramps 7, and the top ends of the fixed arms 6 are in contact with the bottom ends of the swing arms 4;

[0081] Two first sealing plates 8, the two first sealing plates 8 are symmetrically located on the upper layer of the mounting frame 1, and both sides of the first sealing plates 8 are fixedly connected to the swing arm 4 so that the first sealing plates 8 move together with the swing arm 4;

[0082] Two second sealing plates 9, the two second sealing plates 9 are symmetrically located at the lower layer of the mounting frame 1, and the two sides of the second sealing plates 9 are slidably connected in the inner tracks of the swing arm 4 and the fixed arm 6 through a sliding assembly;

[0083] A traction assembly is used to pull the second sealing plate 9 so that the second sealing plate 9 moves upward until the second sealing plate 9 is separated from the fixed arm 6, and then the swing arm 4 drives the second sealing plate 9 to flip under the action of the traction assembly;

[0084] Specifically, in the prior art, in order to prevent the hydrogen tank 3 from being damaged by being hit by external objects, protective plates are usually installed at both ends of the frame to seal and store the hydrogen tank 3. However, during the later maintenance of the hydrogen cylinder, maintenance personnel are required to disassemble and install the protective plates. If the installation method is welding, the protective plates cannot be disassembled, thereby increasing the difficulty of maintenance. The present technical solution can solve the above problem. The specific operation is as follows: when maintenance is required to repair one end of the hydrogen tank 3, the traction mechanism at the corresponding position is started, and the second sealing plate 9 is pulled by the traction assembly, so that the second sealing plate 9 slides upward along the fixed arm 6. Under the guidance of the first guide ramp 5 and the second guide ramp 7, the second sealing plate 9 is moved to the top of the first sealing plate 8, thereby canceling the seal on the lower layer of the installation frame 1;

[0085] After the first sealing plate 8 is separated from the fixed arm 6, the swing arm 4 is rotated under the action of the traction assembly, thereby rotating the first sealing plate 8, thereby canceling the sealing of the side of the installation frame 1, so that the side of the installation frame 1 is opened, so that the maintenance personnel can repair the hydrogen tank 3;

[0086] After the maintenance is completed, the traction mechanism is started, and the swing arm 4 drives the first sealing plate 8 to rotate under the action of gravity to seal the upper layer of the installation frame 1 until the bottom end of the swing arm is docked with the top end of the fixed arm 6. Then, under the action of gravity, the second sealing plate 9 slides along the fixed arm 6 to seal the installation frame 1. When the other side of the hydrogen tank 3 needs to be repaired, the same is true;

[0087] The protective device can arrange the first closing plate 8, the second closing plate 9, the swing arm 4 and the fixed arm 6, so that the first closing plate 8 and the second closing plate 9 can be folded together up and down, which is beneficial to saving space. On the one hand, it is beneficial to reduce the space occupied during the flipping process to avoid being unable to work in a small space. On the other hand, it is beneficial to avoid safety hazards caused to passing vehicles behind.

[0088] As an optional embodiment of the traction mechanism, the traction assembly includes:

[0089] A pneumatic motor 27, the pneumatic motor 27 is fixed to the top of the mounting frame 1;

[0090] A capstan 28, which is coaxially fixed to the output shaft of the pneumatic motor 27;

[0091] A steel wire rope 29, one end of which is wound around the capstan 28, and the other end of which is rotatably connected to the second sealing plate 9;

[0092] Specifically, when maintenance is required, the pneumatic motor at the corresponding position is used to rotate the winch 28, thereby tightening the wire rope 29, so that the wire rope 29 pulls the second sealing plate 9 to slide upward along the fixed arm 6, and under the guidance of the first guide ramp 5 and the second guide ramp 7, the second sealing plate 9 moves to the top of the first sealing plate 8, thereby canceling the seal on the lower layer of the installation frame 1;

[0093] After the first sealing plate 8 is separated from the fixed arm 6, the swing arm 4 is rotated under the continued pulling of the wire rope 29, thereby rotating the first sealing plate 8, thereby canceling the sealing of the side of the installation frame 1, so that the side of the installation frame 1 is opened, so that the maintenance personnel can repair the hydrogen tank 3;

[0094] After the maintenance is completed, the capstan 28 is rotated by the pneumatic cylinder motor to loosen the wire rope 29. Under the action of gravity, the swing arm 4 drives the first sealing plate 8 to rotate to seal the upper layer of the installation frame 1 until the bottom end of the swing arm is docked with the top end of the fixed arm 6. Under the action of gravity, the second sealing plate 9 slides along the fixed arm 6 to seal the installation frame 1.

[0095] It should be noted that the bottom end of the first sealing plate 8 and the top end of the second sealing plate 9 are both beveled edges.

[0096] Among them, the two side arms of the second sealing plate 9 are symmetrically rotatably connected with steel wire lifting ears, and the steel wire rope 29 is fixedly connected to the steel wire lifting ears.

[0097] As a further embodiment of the present invention, the installation assembly comprises:

[0098] Four sliding seats 16, two of which are symmetrically arranged on the upper layer of the mounting frame 1, and the other two sliding seats 16 are symmetrically arranged on the lower layer of the mounting frame 1;

[0099] An annular mounting frame 17, the annular mounting frame 17 is arranged in the sliding seat 16, and an arc-shaped sliding groove 18 is opened at the top of the annular mounting frame 17;

[0100] A hydraulic cylinder 19, the hydraulic cylinder 19 is fixedly connected in the arc-shaped slide groove 18, and the bottom end of the telescopic rod of the hydraulic cylinder 19 is fixedly connected with an arc-shaped fastening plate 20;

[0101] The detection mechanism is used to detect the sealing information of the left and right sides of the installation frame 1. When the two sides of the installation frame 1 are not in a sealed state, the arc-shaped fastening plate 20 is away from the hydrogen tank 3, so that the hydrogen tank 3 can be placed in the two annular mounting frames 17. When the two sides of the installation frame 1 are sealed, the fastening mechanism is started to fasten the hydrogen tank 3 to the annular mounting frame 17;

[0102] Testing agencies include:

[0103] Two arc-shaped trigger blocks 21, which are symmetrically distributed on the left and right sides of the mounting frame 1, and the arc-shaped trigger blocks 21 are coaxially fixed with the swing arms 4 at corresponding positions;

[0104] Two pressure sensors 22, the two pressure sensors 22 are fixedly connected to the side wall of the mounting frame 1 at positions corresponding to the arc-shaped trigger blocks 21;

[0105] The sliding seat 16 is slidably connected to the mounting frame 1, and the annular mounting frame 17 is rotatably connected in the sliding seat 16;

[0106] The left and right sides of each layer of the installation frame 1 are fixedly connected with a push cylinder 23, and the end of the telescopic rod of the push cylinder 23 is fixedly connected to the sliding seat 16 at the corresponding position;

[0107] Specifically, when the left side of the hydrogen tank 3 needs to be repaired, the pneumatic motor on the left side is started. Under the above principle, the swing arm 4 is rotated, so that the arc-shaped trigger block 21 moves the pressure sensor 22, so that the pressure parameter of the pressure sensor 22 increases, and then the hydraulic cylinder 19 on the left side is started, so that the telescopic rod of the hydraulic cylinder 19 pulls the arc-shaped fastening plate 20 to cancel the fastening of the left side of the hydrogen tank 3, and then the push cylinder 23 is started to move the hydrogen tank 3 to the side of the mounting frame 1 that is not sealed (i.e., the left side). On the one hand, the left end of the hydrogen tank 3 is extended from the left end of the mounting frame 1, increasing the maintenance space, which is conducive to the maintenance personnel to repair the left end of the hydrogen tank 3. On the other hand, the part of the left side of the hydrogen tank 3 originally in the annular mounting frame 17 is exposed, which is conducive to the maintenance personnel to observe the hydrogen tank 3 as a whole;

[0108] After the maintenance is completed, the swing arm 4 rotates to make the arc-shaped trigger block 21 separate from the pressure sensor 22, so that the pressure value of the pressure sensor 22 is restored, and the push cylinder 23 first pushes the sliding seat 16 to reset the hydrogen tank 3, and then the hydraulic cylinder 19 on the left position is started to tighten the hydrogen tank 3 to ensure the stability of the hydrogen tank 3;

[0109] When the right side of the hydrogen tank 3 needs to be inspected, the above operation is performed in the same manner.

[0110] As a further embodiment of the present invention, it also includes:

[0111] A driving gear 24, the driving gear 24 is symmetrically rotatably connected to the side wall of the mounting frame 1;

[0112] An annular rack 25, the annular rack 25 is fixedly connected to the surface of the annular mounting frame 17, and the driving rack is meshed with the driving gear 24;

[0113] The screw rod 26 is rotatably connected in the mounting frame 1, the screw rod 26 is slidably connected to the two sliding seats 16, and the screw rod 26 is threadedly connected to the driving gear 24;

[0114] Specifically, by setting a driving gear 24 and an annular rack 25, in the process of pushing the cylinder 23 to push the sliding seat 16, the driving gear 24 slides along the surface of the screw rod 26, and under the action of the threaded connection, the driving gear 24 rotates, and under the action of meshing, the driving rack drives the annular mounting frame 17 to rotate, thereby rotating the hydrogen tank 3, reducing visual interference, so that maintenance personnel can fully inspect the surface of the hydrogen tank 3.

[0115] As an optional embodiment of the sliding assembly, the sliding assembly includes:

[0116] Two upper rollers 10, the two upper rollers 10 are symmetrically connected to the two side walls near the top of the second sealing plate 9, and the upper rollers 10 are slidably connected in the swing arm 4;

[0117] Two lower rollers 11, the two lower rollers 11 are symmetrically connected to the two side walls near the bottom end of the second sealing plate 9, and the lower rollers 11 are slidably connected in the fixed arm 6;

[0118] Specifically, by providing the upper and lower rollers 11 and the lower roller, the second closing plate 9 can slide along the track of the inner wall of the fixed arm 6 , so that the second closing plate 9 can be arranged on the first closing plate 8 .

[0119] As a further embodiment of the present invention, it also includes:

[0120] The limiting assembly is used to limit the lower roller 11 entering the swing arm 4, and the limiting assembly includes:

[0121] A rotating shaft 12, the rotating shaft 12 is rotatably connected to the inner wall near the bottom end of the swing arm 4;

[0122] A rotary valve 13, wherein the rotary valve 13 is fixedly connected to the surface of the rotating shaft 12;

[0123] A torsion spring 14, one end of which is fixedly connected to the inner arm of the swing arm 4, and the other end of which is fixedly connected to the rotary valve 13;

[0124] A slideway conduction block 15, which is fixedly connected to the top of the fixed arm 6 and is used to push the rotary valve 13 to rotate the rotary valve 13;

[0125] Specifically, by setting the rotary valve 13, during the relaxation of the wire rope 29, under the action of gravity, the second sealing plate 9 moves downward, so that the lower roller 11 moves to the position of the rotary valve 13 to wait;

[0126] During the docking process between the swing arm 4 and the fixed arm 6, the rotary valve 13 is pushed by the slideway guide block 15 to flip the rotary valve 13, cancel the limit of the lower roller 11, and make the lower roller 11 move along the first guide ramp 5 into the fixed arm 6, so that the second sealing plate 9 seals the lower layer of the installation frame 1;

[0127] After the swing arm 4 is separated from the fixed arm 6, the rotary valve 13 is rotated and reset under the action of the torsion spring 14 to block the bottom of the swing arm 4, thereby facilitating the positioning of the lower roller 11 and preventing the second sealing plate 9 from falling off.

[0128] Reference Figure 1 , Fig.13 and Fig.14 In order to solve the above problems, the present invention also proposes a protection method for a vehicle-mounted hydrogen frame protection structure, which also includes:

[0129] A controller 2, wherein the controller 2 is arranged on the mounting frame 1;

[0130] The protection method of the protective structure includes:

[0131] The controller 2 receives the first request information sent by the pressure sensor 22 based on the pressure parameter;

[0132] The controller 2 generates first control information and second control information based on the first request information, wherein the first control information is used to control the hydraulic cylinder 19 on the same side as the pressure sensor 22 to start, and the second control information is used to control the push cylinder 23 on a different side from the pressure sensor 22 to start;

[0133] The controller 2 sends the first control information and the second control information to the hydraulic cylinder 19 and the push cylinder 23, firstly making the telescopic rod of the hydraulic cylinder 19 pull the arc-shaped fastening plate 20, and then making the push cylinder 23 push the sliding seat 16, so as to move the hydrogen tank 3 to the side of the mounting frame 1 that is not sealed;

[0134] When one side of the hydrogen tank 3 needs to be repaired, the pneumatic motor at the corresponding position is started to rotate the swing arm 4, so that the arc-shaped trigger block 21 moves the pressure sensor 22, so that the pressure parameter of the pressure sensor 22 increases, and the pressure sensor 22 generates a first request information, and sends the first request information to the controller 2, so that the controller 2 generates a first control information and a second control information, and sends the first control information and the second control information to the hydraulic cylinder 19 at the same side position and the push cylinder 23 at the other side position. After the hydraulic cylinder 19 receives the first control information, the telescopic rod of the hydraulic cylinder 19 pulls the arc-shaped fastening plate 20, and after the push cylinder 23 receives the second control information, the push cylinder 23 pushes the sliding seat 16, so that the hydrogen tank 3 moves to the side of the mounting frame 1 that is not sealed. On the one hand, the end of the hydrogen tank 3 extends from the inside of the mounting frame 1, increasing the maintenance space, which is conducive to the maintenance personnel to repair the end of the hydrogen tank 3, and on the other hand, the part of the hydrogen tank 3 originally in the annular mounting frame 17 is exposed, which is conducive to the maintenance personnel to observe the whole of the hydrogen tank 3;

[0135] After the maintenance is completed, the swing arm 4 rotates and resets, so that the arc-shaped trigger block 21 is separated from the pressure sensor 22, so that the pressure value of the pressure sensor 22 is restored, and the pressure sensor 22 generates a second request information, and sends the first request information to the controller 2, so that the controller 2 generates a third control information and a fourth control information, and sends the third control information and the fourth control information to the hydraulic cylinder 19 at the same side position and the pushing cylinder 23 at the other side position. After the pushing cylinder 23 receives the third control information, the pushing cylinder 23 pulls the sliding seat 16 to make the hydrogen tank 3 away from the mounting frame 1 and be on the sealed side, so that the hydrogen tank 3 is reset. After the hydraulic cylinder 19 receives the fourth control information, the telescopic rod of the hydraulic cylinder 19 pushes the arc-shaped fastening plate 20 to fasten the hydrogen tank 3 to ensure the stability of the hydrogen tank 3.

[0136] Specifically, it also includes:

[0137] The pressure sensor 22 generates a first request message based on an increase in a pressure parameter;

[0138] The pressure sensor 22 sends the first request information to the controller 2 to request the controller 2 to generate the first control information and the second control information;

[0139] When one side of the hydrogen tank 3 needs to be repaired, the pneumatic motor at the corresponding position is started to rotate the swing arm 4, so that the arc-shaped trigger block 21 moves the pressure sensor 22, so that the pressure parameter of the pressure sensor 22 increases, and the pressure sensor 22 generates a first request information, and sends the first request information to the controller 2, so that the controller 2 generates a first control information and a second control information;

[0140] After the maintenance is completed, the swing arm 4 rotates and resets, so that the arc trigger block 21 is separated from the pressure sensor 22, so that the pressure value of the pressure sensor 22 is restored, and the pressure sensor 22 generates a second request information and sends the first request information to the controller 2, so that the controller 2 generates a third control information and a fourth control information.

[0141] Specifically, it also includes:

[0142] The hydraulic cylinder 19 is activated after receiving the first control information, so that the telescopic rod of the hydraulic cylinder 19 pulls the arc-shaped fastening plate 20;

[0143] The push cylinder 23 receives the second control information, so that the hydrogen tank 3 moves to the side of the mounting frame 1 that is not sealed;

[0144] After the hydraulic cylinder 19 receives the first control information, the telescopic rod of the hydraulic cylinder 19 pulls the arc-shaped fastening plate 20, and after the push cylinder 23 receives the second control information, the push cylinder 23 pushes the sliding seat 16 to move the hydrogen tank 3 to the side of the mounting frame 1 that is not sealed;

[0145] After the pushing cylinder 23 receives the third control information, it pulls the sliding seat 16 to move the hydrogen tank 3 away from the mounting frame 1 and to the sealed side, so that the hydrogen tank 3 is reset. After the hydraulic cylinder 19 receives the fourth control information, the telescopic rod of the hydraulic cylinder 19 pushes the arc-shaped fastening plate 20 to fasten the hydrogen tank 3.

[0146] The working principle of the present invention is as follows: when one end of the hydrogen tank 3 needs to be repaired, the traction mechanism at the corresponding position is started, and the second sealing plate 9 is pulled by the traction assembly, so that the second sealing plate 9 slides upward along the fixed arm 6, and under the guidance of the first guide ramp 5 and the second guide ramp 7, the second sealing plate 9 moves to the top of the first sealing plate 8, thereby canceling the seal on the lower layer of the installation frame 1;

[0147] After the first sealing plate 8 is separated from the fixed arm 6, the swing arm 4 is rotated under the action of the traction assembly, thereby rotating the first sealing plate 8, thereby canceling the sealing of the side of the installation frame 1, so that the side of the installation frame 1 is opened, so that the maintenance personnel can repair the hydrogen tank 3;

[0148] After the maintenance is completed, the traction mechanism is started, and the swing arm 4 drives the first sealing plate 8 to rotate under the action of gravity to seal the upper layer of the installation frame 1 until the bottom end of the swing arm is docked with the top end of the fixed arm 6. Then, under the action of gravity, the second sealing plate 9 slides along the fixed arm 6 to seal the installation frame 1. When the other side of the hydrogen tank 3 needs to be repaired, the same is true;

[0149] The protective device can arrange the first closing plate 8, the second closing plate 9, the swing arm 4 and the fixed arm 6, so that the first closing plate 8 and the second closing plate 9 can be folded together up and down, which is beneficial to saving space. On the one hand, it is beneficial to reduce the space occupied during the flipping process to avoid being unable to work in a small space. On the other hand, it is beneficial to avoid safety hazards caused to passing vehicles behind.

[0150] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A vehicle-mounted hydrogen frame variable structure protection device, characterized in that: include: A mounting frame (1), the mounting frame (1) having an upper and a lower layer; An installation assembly, the installation assembly being used to install the hydrogen tank (3) so as to install the hydrogen tank (3) in the installation frame (1); Four swing arms (4), the four swing arms (4) are respectively located on the left and right sides of the mounting frame (1), the top ends of the swing arms (4) are rotatably connected to the side walls of the mounting frame (1), and the bottom ends of the swing arms (4) are provided with a first guiding ramp (5); Four fixed arms (6), the four swing arms (4) are respectively located on the left and right sides of the mounting frame (1), the fixed arms (6) are fixedly connected to the side walls of the mounting frame (1), the top ends of the fixed arms (6) are provided with second guiding ramps (7), and the top ends of the fixed arms (6) are in contact with the bottom ends of the swing arms (4); Two first sealing plates (8), the two first sealing plates (8) being symmetrically located on the upper layer of the mounting frame (1), and the two sides of the first sealing plates (8) being fixedly connected to the swing arm (4) so ​​that the first sealing plates (8) move together with the swing arm (4); Two second sealing plates (9), the two second sealing plates (9) are symmetrically located on the lower layer of the mounting frame (1), and two sides of the second sealing plates (9) are slidably connected in the inner tracks of the swing arm (4) and the fixed arm (6) through a sliding assembly; A traction assembly is used to pull the second sealing plate (9) so that the second sealing plate (9) moves upward until the second sealing plate (9) is separated from the fixed arm (6), and under the action of the traction assembly, the swing arm (4) drives the second sealing plate (9) to flip.

2. The vehicle-mounted hydrogen frame variable structure protection device according to claim 1 is characterized in that: The sliding assembly comprises: Two upper rollers (10), the two upper rollers (10) are symmetrically rotatably connected to the two side walls near the top of the second sealing plate (9), and the upper rollers (10) are slidably connected inside the swing arm (4); Two lower rollers (11) are symmetrically rotatably connected to two side walls near the bottom end of the second sealing plate (9), and the lower rollers (11) are slidably connected inside the fixed arm (6).

3. The vehicle-mounted hydrogen frame variable structure protection device according to claim 2 is characterized in that: Also includes: A limiting assembly, the limiting assembly is used to limit the lower roller (11) entering into the swing arm (4), and the limiting assembly comprises: A rotating shaft (12), the rotating shaft (12) being rotatably connected to an inner wall near the bottom end of the swing arm (4); A rotary valve (13), wherein the rotary valve (13) is fixedly connected to the surface of the rotary shaft (12); A torsion spring (14), one end of the torsion spring (14) is fixedly connected to the inner arm of the swing arm (4), and the other end of the torsion spring (14) is fixedly connected to the rotary valve (13); A slideway conduction block (15) is fixedly connected to the top end of the fixed arm (6) and is used to push the rotary valve (13) so as to rotate the rotary valve (13).

4. The vehicle-mounted hydrogen frame variable structure protection device according to claim 1 is characterized in that: The installation assembly includes: Four sliding seats (16), two of which are symmetrically arranged on the upper layer of the mounting frame (1), and the other two of which are symmetrically arranged on the lower layer of the mounting frame (1); An annular mounting frame (17), wherein the annular mounting frame (17) is arranged in the sliding seat (16), and an arc-shaped sliding groove (18) is formed at the top of the annular mounting frame (17); A hydraulic cylinder (19), wherein the hydraulic cylinder (19) is fixedly connected in the arc-shaped slide groove (18), and the bottom end of the telescopic rod of the hydraulic cylinder (19) is fixedly connected with an arc-shaped fastening plate (20); A detection mechanism, the detection mechanism is used to detect the sealing information of the left and right sides of the installation frame (1); when the two sides of the installation frame (1) are not in a sealed state, the arc-shaped fastening plate (20) is away from the hydrogen tank (3) to facilitate the placement of the hydrogen tank (3) in the two annular mounting frames (17); when the two sides of the installation frame (1) are sealed, the fastening mechanism is activated to fasten the hydrogen tank (3) to the annular mounting frame (17); The detection mechanism includes: Two arc-shaped trigger blocks (21), the two arc-shaped trigger blocks (21) are symmetrically distributed on the left and right sides of the installation frame (1), and the arc-shaped trigger blocks (21) are coaxially fixed with the swing arms (4) at corresponding positions; Two pressure sensors (22), the two pressure sensors (22) being fixedly connected to the side wall of the installation frame (1) at positions corresponding to the arc-shaped triggering blocks (21).

5. The vehicle-mounted hydrogen frame variable structure protection device according to claim 4 is characterized in that: The sliding seat (16) is slidably connected to the mounting frame (1), and the annular mounting frame (17) is rotatably connected inside the sliding seat (16); The left and right sides of each layer of the installation frame (1) are fixedly connected with a pushing cylinder (23), and the end of the telescopic rod of the pushing cylinder (23) is fixedly connected to the sliding seat (16) at the corresponding position.

6. The vehicle-mounted hydrogen frame variable structure protection device according to claim 5, characterized in that: Also includes: A driving gear (24), the driving gear (24) being symmetrically rotatably connected to a side wall of the mounting frame (1); an annular rack (25), the annular rack (25) being fixedly connected to the surface of the annular mounting frame (17), the driving rack being meshed with the driving gear (24); A screw rod (26), the screw rod (26) is rotatably connected in the installation frame (1), the screw rod (26) is slidably connected to two sliding seats (16), and the screw rod (26) is threadedly connected to the driving gear (24).

7. The vehicle-mounted hydrogen frame variable structure protection device according to claim 1 is characterized in that: The traction assembly comprises: A pneumatic motor (27), wherein the pneumatic motor (27) is fixed to the top of the mounting frame (1); A capstan (28), wherein the capstan (28) is coaxially fixed to an output shaft of the pneumatic motor (27); A steel wire rope (29), one end of which is wound around the capstan (28), and the other end of which is rotatably connected to the second sealing plate (9).

8. A method for protecting a vehicle-mounted hydrogen frame protection structure, applicable to a vehicle-mounted hydrogen frame variable structure protection device according to claim 5, characterized in that: Also includes: A controller (2), the controller (2) being arranged on the mounting frame (1); The protection method of the protective structure includes: The controller (2) receives first request information sent by the pressure sensor (22) based on the pressure parameter; The controller (2) generates first control information and second control information based on the first request information, wherein the first control information is used to control the hydraulic cylinder (19) on the same side as the pressure sensor (22) to start, and the second control information is used to control the push cylinder (23) on a different side from the pressure sensor (22) to start; The controller (2) sends the first control information and the second control information to the hydraulic cylinder (19) and the pushing cylinder (23), firstly causing the telescopic rod of the hydraulic cylinder (19) to pull the arc-shaped fastening plate (20), and then causing the pushing cylinder (23) to push the sliding seat (16), so as to move the hydrogen tank (3) toward the side of the mounting frame (1) that is not sealed.

9. A method for protecting a vehicle-mounted hydrogen frame protection structure according to claim 8, characterized in that: Also includes: The pressure sensor (22) generates first request information based on an increase in a pressure parameter; The pressure sensor (22) sends first request information to the controller (2) to request the controller (2) to generate first control information and second control information.

10. A method for protecting a vehicle-mounted hydrogen frame protection structure according to claim 8, characterized in that: Also includes: The hydraulic cylinder (19) is activated after receiving the first control information, so that the telescopic rod of the hydraulic cylinder (19) pulls the arc-shaped fastening plate (20); The pushing cylinder (23) receives the second control information, so that the hydrogen tank (3) moves toward the side of the mounting frame (1) that is not sealed.

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