Transportation device with anti-seismic function for vehicle-mounted liquid hydrogen cylinders

Abstract

The invention discloses a vehicle-mounted liquid hydrogen cylinder transportation device with an anti-seismic function, and relates to the technical field of hydrogen cylinder transportation, the vehicle-mounted liquid hydrogen cylinder transportation device comprises a base, a movable plate is arranged in the base, a supporting frame and a placing groove are arranged at the top of the movable plate, and a two-way screw rod is mounted in the middle of the interior of the supporting frame; compared with the operation mode that hydrogen cylinders need to be independently fixed in a one-to-one mode in the prior art, the hydrogen cylinder fixing device has the advantages that the fixing process is greatly simplified, the fixing efficiency is improved, and the hydrogen cylinder fixing device is convenient to use and high in practicability. And the multi-bottle fixing operation is simplified from multiple repeated actions to single screw rod rotating operation, so that the loading operation time is remarkably shortened, and the working efficiency is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of hydrogen cylinder transportation technology, specifically to a vehicle-mounted liquid hydrogen cylinder transportation device with shock-resistant function. Background Technology

[0002] With the continuous progress of society and technology, people's environmental awareness is also constantly improving, and various new energy vehicles are appearing in people's lives, replacing the more polluting fossil fuel vehicles. Hydrogen-powered vehicles are one type of new energy vehicle. As the name suggests, they are vehicles that use hydrogen as an energy source, converting the chemical energy produced by the hydrogen reaction into mechanical energy to propel the vehicle. Hydrogen is required during its use, and hydrogen cylinders are needed for storage. Hydrogen cylinders themselves need to be secured with hydrogen cylinder transport and fixing devices during transportation.

[0003] Existing technology discloses a hydrogen transportation shock absorption device with patent number CN117799950A, including a main body of the device. The main body contains a hydrogen transportation shock absorption assembly, and anti-collision components are installed on the sides of the assembly. A hydrogen transportation fixing assembly is located on the top of the assembly. The hydrogen transportation shock absorption assembly includes a mounting base plate, a first T-shaped clamp, a second T-shaped clamp, a vertical sliding groove for the clamp, two end shaft connecting plates, a third T-shaped clamp, a horizontal sliding groove for the clamp, a clamp limiting rod, and a clamp buffer spring. The first T-shaped clamp is fixedly connected to the side of the mounting base plate, and the second T-shaped clamp is fixedly connected to the outer wall of the base plate. This invention facilitates shock absorption during hydrogen transportation, reducing the risk of collisions and improving the safety of the device during transport. However, in actual batch transportation scenarios (such as a logistics fleet transporting multiple cylinders of hydrogen at a time), the fixing structure design of this device still has significant limitations: the multiple sets of hydrogen transportation fixing components must form a "one-to-one" connection with the hydrogen cylinders. The operation is based on a fixed relationship, meaning that for each hydrogen cylinder placed, a separate set of fixing components must be adjusted to complete the clamping and positioning. This decentralized fixing method not only greatly increases the number of operation steps but also directly prolongs the loading operation time, resulting in low efficiency in transportation preparation. Summary of the Invention

[0004] Based on this, the purpose of the present invention is to provide a vehicle-mounted liquid hydrogen cylinder transportation device with shock-resistant function to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a vehicle-mounted liquid hydrogen cylinder transport device with shock-resistant function, comprising a base, an internal movable plate, a support frame and a placement groove on the top of the movable plate, a bidirectional lead screw installed in the middle of the internal part of the support frame, a threaded block threaded to the outer surface of the bidirectional lead screw, movable blocks fixed at the top and bottom of the threaded blocks, an actuating pin installed on the inner side of the movable blocks, an arc groove and a movable opening on the outer surface and back of the support frame, and a clamping rod installed on the inner side of the movable opening via a connecting shaft, the top of the clamping rod having an actuating opening.

[0006] Furthermore, the support frame is equipped with two sets of sliding rods, and the sliding rods are in sliding engagement with the movable block.

[0007] By adopting the above technical solution, the sliding cooperation between the slide rod and the movable block provides directional guidance for the displacement of the movable block, thus preventing the movable block from deviating.

[0008] Furthermore, a rudder is fixed to one end of the bidirectional lead screw.

[0009] By adopting the above technical solution, the rudder provides a direct force carrier for rotating the bidirectional lead screw, and the operator can easily drive the lead screw to rotate by operating the rudder.

[0010] Furthermore, the outer surface of the clamping rod and the inner side of the arc groove are provided with silicone pads, and the Shore hardness of the silicone pads is 50-70HA.

[0011] By adopting the above technical solution, the 50-70HA silicone pad has sufficient flexibility to fit closely to the outer wall of the hydrogen cylinder to form a buffer, avoiding scratching the cylinder or stress concentration due to hard contact when the clamp is tightened, while also having moderate rigidity to prevent excessive deformation from causing insufficient clamping force.

[0012] Furthermore, a ratchet is fixed to one side of the outer surface of the bidirectional lead screw, a fixing plate is fixed to one side of the support frame, a pull rod passes through the top of the fixing plate, a ratchet tooth that meshes with the ratchet is fixed to the bottom of the pull rod, and a return spring is sleeved on the outer surface of the pull rod.

[0013] By adopting the above technical solution, the return spring can ensure that the ratchet is always in close contact with the ratchet wheel, avoid loosening of the engagement caused by transportation bumps, greatly improve the locking reliability, and effectively prevent the clamping rod from loosening due to the reverse rotation of the bidirectional screw.

[0014] Furthermore, the actuating pin is located inside the actuating port, and the actuating pin slides in conjunction with the actuating port.

[0015] By adopting the above technical solution, when the movable block is displaced, the actuating pin slides directionally along the actuating port, which can convert linear motion into rotational motion of the clamping rod around the connecting shaft.

[0016] Furthermore, the pull rod is movably fitted with the fixed plate, and a pull ring is fixed to the top of the pull rod.

[0017] By adopting the above technical solution, the pull ring ensures that the pull rod can move smoothly up and down along the fixed plate to drive the ratchet to engage or disengage with the ratchet wheel, providing a convenient point of force application for pulling the pull rod.

[0018] Furthermore, the movable plate is slidably engaged with the base, and a damping rod and a shock-absorbing spring are fixed between the lower interior of the base and the bottom of the movable plate.

[0019] By adopting the above technical solution, the damping rod and the shock-absorbing spring together absorb the impact energy, which can effectively buffer the bumps and vibrations during transportation, avoid the impact damage to the hydrogen cylinder caused by rigid transmission, and ensure that the moving plate is stable and does not deviate.

[0020] Furthermore, the shock-absorbing springs are provided in multiple sets, and all sets of shock-absorbing springs are made of manganese steel.

[0021] By adopting the above technical solutions, manganese steel material ensures the fatigue resistance and durability of springs, avoids deformation and failure after long-term use, and further enhances the stability and service life of the shock absorption structure.

[0022] In summary, the present invention has the following main beneficial effects:

[0023] 1. This invention, comprising a bidirectional lead screw, a clamping rod, a movable block, a threaded block, a lever pin, a lever opening, a placement groove, an arc groove, and a connecting shaft, allows operators to first place multiple hydrogen cylinders in the placement groove. Then, simply rotating the bidirectional lead screw causes multiple sets of threaded blocks to move. During this movement, the movable block moves synchronously, causing the lever pin on the movable block to slide precisely within the lever opening. This sliding action drives the clamping rod to rotate synchronously around the connecting shaft, firmly securing the hydrogen cylinders within the arc groove. This achieves simultaneous clamping and fixing of multiple hydrogen cylinders at once. Compared to existing technologies that require individual "one-to-one" fixing of each hydrogen cylinder, this invention significantly simplifies the fixing process, reducing the multiple-cylinder fixing operation from multiple repetitive actions to a single lead screw rotation operation, significantly shortening loading time and effectively improving work efficiency.

[0024] 2. This invention, equipped with a ratchet, ratchet teeth, a return spring, and a pull rod, allows the ratchet to rotate coaxially with the bidirectional screw when it clamps and secures the hydrogen cylinder. The unidirectional meshing structure of the ratchet teeth and ratchet ensures that the ratchet rotates smoothly only in the forward direction with the bidirectional screw, without obstruction. Simultaneously, when the bidirectional screw stops rotating, the ratchet teeth tightly engage with the ratchet teeth, forming a mechanical locking limit. This effectively prevents the bidirectional screw from rotating in the opposite direction due to road bumps, sudden braking, or other external forces during transportation, thus avoiding the safety hazards of loosening of the clamping rod and cylinder displacement. When it is necessary to remove the hydrogen cylinder, the operator only needs to pull the pull rod with one hand. This allows the ratchet teeth to overcome the elastic force of the return spring and move upwards, quickly disengaging the ratchet teeth. Reversing the bidirectional screw then easily releases the clamping rod from the hydrogen cylinder, facilitating its removal. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the cross-sectional structure of the base of the present invention;

[0027] Figure 3 This is a schematic diagram of the support frame structure of the present invention;

[0028] Figure 4 This is a top-section schematic diagram of the support frame structure of the present invention;

[0029] Figure 5 This is a schematic diagram of the clamping rod structure of the present invention.

[0030] Figure 6 This is a schematic diagram of the bidirectional lead screw structure of the present invention.

[0031] Figure 7 This is a schematic diagram of the threaded block structure of the present invention.

[0032] Figure 8 This is a schematic diagram of the ratchet structure of the present invention.

[0033] In the diagram: 1. Base; 2. Movable plate; 3. Support frame; 4. Arc groove; 5. Placement slot; 6. Movable opening; 7. Clamping rod; 8. Fixed plate; 9. Damping rod; 10. Shock-absorbing spring; 11. Two-way lead screw; 12. Threaded block; 13. Ratchet; 14. Connecting shaft; 15. Movable block; 16. Slide rod; 17. Actuating port; 18. Actuating pin; 19. Pull rod; 20. Ratchet; 21. Return spring; 22. Pull ring; 23. Rudder. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0035] The embodiments of the present invention will now be described.

[0036] Example 1: A vehicle-mounted transport device for liquid hydrogen cylinders with shock-resistant function, such as... Figures 1-8 As shown, the device includes a base 1, with a movable plate 2 inside the base 1. The top of the movable plate 2 is provided with a support frame 3 and a placement groove 5. A bidirectional lead screw 11 is installed in the middle of the inside of the support frame 3. A threaded block 12 is threadedly connected to the outer surface of the bidirectional lead screw 11. Movable blocks 15 are fixed at the top and bottom of the threaded block 12. An actuating pin 18 is installed on the inner side of the movable block 15. The outer surface and back of the support frame 3 are provided with an arc groove 4 and a movable opening 6. A clamping rod 7 is installed on the inner side of the movable opening 6 through a connecting shaft 14. A silicone pad is provided on the outer surface of the clamping rod 7 and the inner side of the arc groove 4. The silicone pad has a Shore hardness of 50-70HA. The 50-70HA silicone pad has sufficient flexibility to fit tightly against the outer wall of the hydrogen cylinder to form a buffer, avoiding scratching the cylinder or stress concentration due to hard contact when the clamp is tightened. It also has moderate rigidity to prevent excessive deformation that would lead to insufficient clamping force. An actuating opening 17 is provided at the top of the clamping rod 7.

[0037] See Figure 2 , Figure 4 , Figure 5 and Figure 6 In the above embodiment, two sets of sliding rods 16 are installed inside the support frame 3, and the sliding rods 16 are slidably engaged with the movable block 15. The sliding engagement between the sliding rods 16 and the movable block 15 provides directional guidance for the displacement of the movable block 15, thereby preventing the movable block 15 from shifting.

[0038] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 8 In the above embodiment, a rudder 23 is fixed at one end of the bidirectional lead screw 11. The rudder 23 provides a direct force carrier for rotating the bidirectional lead screw 11, and the operator can easily drive the lead screw to rotate by operating the rudder 23.

[0039] See Figures 4-7In the above embodiment, the actuating pin 18 is located inside the actuating port 17, and the actuating pin 18 is slidably engaged with the actuating port 17. When the movable block 15 is displaced, the actuating pin 18 slides directionally along the actuating port 17, which can convert linear motion into rotational motion of the clamping rod 7 around the connecting shaft 14.

[0040] Example 2: To prevent the bidirectional lead screw from loosening during transportation, Example 2 is an improvement on Example 1. (See attached document for details.) Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 8 A ratchet 13 is fixed to one side of the outer surface of the bidirectional lead screw 11, and a fixing plate 8 is fixed to one side of the support frame 3. A pull rod 19 passes through the top of the fixing plate 8, and a ratchet tooth 20 that meshes with the ratchet 13 is fixed to the bottom of the pull rod 19. A return spring 21 is sleeved on the outer surface of the pull rod 19. The return spring 21 can ensure that the ratchet tooth 20 is always tightly engaged with the ratchet 13, avoiding loosening of the engagement caused by transportation bumps, greatly improving the locking reliability, and effectively preventing the clamping rod 7 from loosening due to the reverse rotation of the bidirectional lead screw 11.

[0041] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 8 In the above embodiment, the pull rod 19 is movably engaged with the fixed plate 8, and a pull ring 22 is fixed at the top of the pull rod 19. The pull ring 22 ensures that the pull rod 19 can move smoothly up and down along the fixed plate 8 to drive the ratchet 20 to engage or disengage with the ratchet 13, providing a convenient point of force application for pulling the pull rod 19.

[0042] Example 3: To provide shock absorption and cushioning during transportation, Example 3 is an improvement upon Example 1. (See attached document for details.) Figure 2 The movable plate 2 is slidably engaged with the base 1. A damping rod 9 and a shock-absorbing spring 10 are fixed between the lower interior of the base 1 and the bottom of the movable plate 2. The damping rod 9 and the shock-absorbing spring 10 together absorb the impact energy, effectively buffering the bumps and vibrations during transportation and avoiding impact damage to the hydrogen cylinder caused by rigid transmission. The sliding engagement ensures that the movable plate 2 is stably displaced without deviation.

[0043] See Figure 1 In the above embodiments, the shock-absorbing spring 10 is provided in multiple sets, and all sets of shock-absorbing spring 10 are made of manganese steel. The manganese steel material ensures the fatigue resistance and durability of the spring, avoids deformation and failure after long-term use, and further enhances the stability and service life of the shock-absorbing structure.

[0044] The implementation principle of this invention is as follows: Workers place multiple hydrogen cylinders in the placement slot 5 in batches. Rotating the rudder 23 drives the bidirectional lead screw 11 to rotate. The bidirectional lead screw 11 drives multiple sets of threaded blocks 12 to move synchronously, thereby moving the movable block 15. When the movable block 15 moves, its actuating pin 18 slides within the actuating port 17 of the clamping rod 7, converting linear motion into rotation of the clamping rod 7 around the connecting shaft 14. This causes the clamping rod 7 to move closer to the gas cylinders, achieving synchronous clamping of multiple cylinders. Simultaneously, when the bidirectional lead screw 11 is rotated in the forward direction to clamp and fix the hydrogen cylinders, the bidirectional lead screw 11 synchronously drives the ratchet 13 to rotate coaxially. Utilizing the one-way meshing structure between the ratchet 20 and the ratchet 13, the ratchet 20 only allows the ratchet 13 to rotate with the bidirectional lead screw 11 in the forward direction. The rotation is smooth and unobstructed. At the same time, when the bidirectional screw 11 stops rotating, the ratchet 20 can tightly engage the tooth groove of the ratchet 13, forming a mechanical locking limit. This effectively prevents the bidirectional screw 11 from rotating in the opposite direction due to external forces such as road bumps and sudden braking vibrations during transportation, thereby avoiding the safety hazards of the clamping rod 7 loosening and the gas cylinder shifting. When it is necessary to remove the hydrogen cylinder, the staff only needs to pull the lever 19 with one hand. The lever 19 will drive the ratchet 20 to overcome the elastic force of the return spring 21 and move upward, quickly realizing the disengagement and unlocking of the ratchet 13 and the ratchet 20. At this time, rotating the bidirectional screw 11 in the opposite direction can easily release the clamping rod 7 from the hydrogen cylinder, making it easy for the staff to remove the hydrogen cylinder.

[0045] Although embodiments of the present invention have been shown and described, these specific embodiments are merely illustrative of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A vehicle-mounted transport device for liquid hydrogen cylinders with shock-resistant function, comprising a base (1), characterized in that: The base (1) has a movable plate (2) inside. The top of the movable plate (2) has a support frame (3) and a placement groove (5). The support frame (3) has a double-acting screw (11) installed in the middle. The outer surface of the double-acting screw (11) is threaded with a threaded block (12). The top and bottom of the threaded block (12) are fixed with movable blocks (15). The inner side of the movable block (15) is equipped with a toggle pin (18). The outer surface and back of the support frame (3) are provided with an arc groove (4) and a movable opening (6). The inner side of the movable opening (6) is equipped with a clamping rod (7) through a connecting shaft (14). The top of the clamping rod (7) is provided with a toggle opening (17).

2. The vehicle-mounted liquid hydrogen cylinder transport device with shock-resistant function according to claim 1, characterized in that: The support frame (3) is equipped with two sets of sliding rods (16), and the sliding rods (16) are in sliding cooperation with the movable block (15).

3. The vehicle-mounted liquid hydrogen cylinder transport device with shock-resistant function according to claim 1, characterized in that: One end of the bidirectional lead screw (11) is fixed with a rudder (23).

4. The vehicle-mounted liquid hydrogen cylinder transport device with shock-resistant function according to claim 1, characterized in that: The outer surface of the clamping rod (7) and the inner side of the arc groove (4) are provided with silicone pads, and the Shore hardness of the silicone pads is 50-70HA.

5. The vehicle-mounted liquid hydrogen cylinder transport device with shock-resistant function according to claim 1, characterized in that: A ratchet (13) is fixed on one side of the outer surface of the bidirectional lead screw (11), a fixing plate (8) is fixed on one side of the support frame (3), a pull rod (19) passes through the top of the fixing plate (8), a ratchet tooth (20) that meshes with the ratchet (13) is fixed at the bottom of the pull rod (19), and a return spring (21) is sleeved on the outer surface of the pull rod (19).

6. The vehicle-mounted liquid hydrogen cylinder transport device with shock-resistant function according to claim 1, characterized in that: The actuating pin (18) is located inside the actuating port (17), and the actuating pin (18) and the actuating port (17) are in sliding fit.

7. The vehicle-mounted liquid hydrogen cylinder transport device with shock-resistant function according to claim 1, characterized in that: The pull rod (19) is movably fitted with the fixing plate (8), and a pull ring (22) is fixed at the top of the pull rod (19).

8. The vehicle-mounted liquid hydrogen cylinder transport device with shock-resistant function according to claim 1, characterized in that: The movable plate (2) is slidably engaged with the base (1), and a damping rod (9) and a shock-absorbing spring (10) are fixed between the lower interior of the base (1) and the bottom of the movable plate (2).

9. The vehicle-mounted liquid hydrogen cylinder transport device with shock-resistant function according to claim 8, characterized in that: The shock-absorbing spring (10) is provided in multiple sets, and all sets of shock-absorbing springs (10) are made of manganese steel.

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