Anti-dragging device and anti-dragging method for hose for hydrogen charging

Abstract

The invention relates to the technical field of hydrogen charging and particularly discloses an anti-dragging device for a hose for hydrogen charging and an anti-dragging method thereof.The anti-dragging device comprises a gun body, a gas supply pipe and a locking plate, the gas supply pipe is installed on the gun body, the locking plate is arranged on the outer side of the gun body, and a reverse thrust mechanism is arranged on the outer side of one end of the gun body; the triggering mechanism is arranged on the outer side of the other end of the air supply pipe and comprises a connecting assembly, two triggering assemblies, a pipe supporting assembly, a first limiting assembly and a sliding assembly. The pipe supporting assembly is pushed to move through bending of an air supply pipe, the pipe supporting assembly drives the first limiting assembly to transversely move through the triggering assembly, so that limiting on the sliding assembly is relieved, the sliding assembly slides, a gun body is separated from equipment, meanwhile, a fourth elastic piece pushes a second limiting assembly to move, a second pressing rod extrudes the pipe supporting assembly, and the gun body is clamped. At the moment, the pipe supporting assembly pushes the bent air supply pipe to reset, so that the air supply pipe is prevented from being excessively bent.

Description

Technical Field

[0001] The invention relates to the technical field of hydrogen charging, and in particular to a hose anti-drag device for hydrogen charging and an anti-drag method thereof. Background Art

[0002] Hydrogen energy is recognized as a clean energy source and stands out as a low-carbon energy source. In the comprehensive utilization of hydrogen energy, the construction of filling stations has become a necessity. Among them, the function of the filling station is to receive hydrogen and pressurize it to supply hydrogen long-tube trailers, hydrogen filling stations or other hydrogen storage facilities; During the hydrogen filling process, the hydrogen filling gun will be inserted into the hydrogen filling port of the vehicle and locked with the vehicle through the locking part of the hydrogen filling gun. However, after the hydrogen filling is completed, if the hydrogen filling gun is forgotten to be unplugged, the movement of the vehicle will drag the gas supply hose, causing a large bend between the gas supply hose and the hydrogen filling gun. At this time, if the hydrogen filling gun is not pulled out in time or dragging is prevented, not only will the connection between the hydrogen filling gun and the gas supply hose rupture, causing gas leakage, but also damage to the hydrogen filling gun.

[0003] Therefore, we propose a hydrogen charging hose anti-drag device and an anti-drag method thereof to solve the above-mentioned problems. Summary of the invention

[0004] The present invention provides a hydrogen charging hose anti-drag device and an anti-drag method thereof, aiming to solve the problem in the related art that the dragging of the gas supply hose easily leads to the rupture of the connection between the hydrogenation gun and the gas supply hose.

[0005] The anti-drag device for a hose for hydrogen charging of the present invention comprises: A gun body, an air supply pipe and a locking plate, wherein the air supply pipe is mounted on the gun body and the locking plate is arranged on the outside of the gun body; A reverse thrust mechanism is arranged outside one end of the gun body to push the gun body away from the equipment; A trigger mechanism is arranged outside the other end of the air supply pipe, and the trigger mechanism includes a connecting component and two trigger components, a supporting pipe component, a first limiting component, and a sliding component. The two trigger components are respectively arranged on both sides of the inner wall of the connecting component, the supporting pipe component is hinged on the trigger component, the first limiting component is installed on one side of the inner wall of the connecting component, and the sliding component is arranged on the connecting component; Two pressure-applying mechanisms are respectively arranged on both sides of the trigger mechanism to push the air supply pipe to reset, the pressure-applying mechanism includes a connecting tube installed on the connecting assembly, a rotating disk is arranged on the connecting tube, a rotating column is arranged at one end of the rotating disk, a spiral groove is opened on the rotating column, a vertical groove is opened between the head end and the end of the spiral groove, a lifting ring is sleeved on the rotating column, a protrusion is installed on the inner wall of the lifting ring, a second fixed rod is installed on the bottom end of the lifting ring, a second limiting assembly is installed on the second fixed rod, a fourth elastic member is installed on the top of the second limiting assembly, a third fixed rod is installed on the second limiting assembly, and a second pressure rod is installed on the third fixed rod.

[0006] Preferably, the reverse thrust mechanism includes a mounting cover, a slip ring, a first elastic member and a plurality of pushing members, the mounting cover is mounted on the outside of one end of the gun body, the interior of the mounting cover has a cavity, the slip ring is slidably connected in the cavity of the mounting cover, the first elastic member is arranged between the inner wall of the mounting cover and the slip ring, a plurality of pushing members are installed at one end of the slip ring, the pushing member includes a first connecting rod and a reverse thrust block, the reverse thrust block is installed at one end of the first connecting rod, and the first connecting rod is installed at one end of the slip ring.

[0007] Preferably, the connecting assembly includes a connecting cover installed at one end of the gun body, the connecting cover has a partition, and limiting plates are installed on both sides of the connecting cover. The upper sliding connection of the limiting plate is connected to a guide plate, one end of the guide plate has a curved surface, and a first baffle is installed on the outer side of the guide plate.

[0008] Preferably, the trigger assembly includes a second connecting rod, a trigger plate, a first transverse plate and a connecting block, the second connecting rod is installed on the inner wall of the connecting cover, the trigger plate is arranged on the outside of the second connecting rod, the first transverse plate is installed on the top of one side of the trigger plate, and the connecting block is installed on the bottom of one side of the trigger plate.

[0009] Preferably, the supporting pipe assembly comprises a first movable plate and a first pressure rod, wherein the first pressure rod is mounted on one side of the first movable plate, a groove is provided in the middle of the other side of the first movable plate, and a connecting shaft is mounted on the inner wall of the groove.

[0010] Preferably, the first limiting assembly includes a second movable plate, a first mounting groove, a rotating shaft and a second baffle, the first mounting groove is opened at the top of the second movable plate, the rotating shaft is arranged on the inner wall of the first mounting groove, the second baffle is installed on the rotating shaft, a protrusion is provided on one side of the inner bottom wall of the first mounting groove, a through groove is opened on the top of one side of the second movable plate, and a reset member is installed at the bottom of the second movable plate.

[0011] Preferably, the sliding assembly includes a sliding plate, an unlocking plate and a convex plate, the sliding plate is formed by connecting a first L plate and a second L plate in the first position, the unlocking plate is installed on the bottom of the first L plate on the sliding plate, the convex plate is installed on the bottom of the second L plate on the sliding plate, and a second cross plate is installed on the top of the second L plate on the sliding plate, and the second cross plate is located in the partition of the connecting cover.

[0012] Preferably, the trigger mechanism further comprises two reset components, and the two reset components are both arranged in the partition of the connecting cover.

[0013] Preferably, the second limiting assembly includes a lifting plate installed at the bottom end of the second fixed rod, a second mounting groove is opened inside the lifting plate, a third elastic member is installed on the inner wall of the second mounting groove, a connecting frame is installed at one end of the third elastic member, an arc block is installed on the inner wall of the connecting frame, and a limiting rod is installed on one side of the connecting frame.

[0014] The method for preventing the hydrogen charging hose from dragging of the present invention utilizes the above-mentioned device for preventing the hydrogen charging hose from dragging, and comprises the following steps: S1: When dragging occurs, the air supply pipe pushes the first movable plate to move through the first pressure rod, causing the trigger plate to rotate, and at the same time the first horizontal plate drives the guide plate to move horizontally; S2: During the rotation of the trigger plate, the first limit assembly moves horizontally. At this time, the slip ring drives one end of the first connecting rod to pass through the mounting cover. As the slip ring continues to move, the sliding plate pushes the locking plate to move through the unlocking plate, so that the gun body and the device are unlocked, and the reverse push block pushes the mounting cover to move, so that the gun body and the device are separated; During the movement of the guide plate, the second limit assembly is unlocked from the connecting tube. At this time, the fourth elastic member pushes the lifting plate to move horizontally. The lifting plate drives the second pressure rod to move horizontally through the third fixed rod. The first movable plate pushes the bent air supply pipe to reset through the first pressure rod to avoid excessive bending of the air supply pipe.

[0015] By adopting the above technical scheme, the beneficial effects of the present invention are as follows: when dragging occurs, the bending of the air supply pipe pushes the supporting pipe assembly to move, and at this time the supporting pipe assembly drives the first limiting assembly to move horizontally through the trigger assembly, thereby releasing the limiting of the sliding assembly and allowing the sliding assembly to slide. During the sliding process of the sliding assembly, the first elastic member begins to reset to separate the gun body from the equipment, and at the same time the fourth elastic member pushes the second limiting assembly to move, causing the second pressure rod to squeeze the supporting pipe assembly, and at this time the supporting pipe assembly pushes the bent air supply pipe to reset to avoid excessive bending of the air supply pipe and prevent leakage between the gun body and the air supply pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of a specific embodiment of the present invention.

[0017] Figure 2 It is a schematic diagram of the internal structure of the mounting cover of a specific embodiment of the present invention.

[0018] Figure 3 It is a schematic diagram of the internal structure of the connection cover of a specific embodiment of the present invention.

[0019] Figure 4 It is a schematic structural diagram of a support pipe assembly according to a specific embodiment of the present invention.

[0020] Figure 5 It is a schematic diagram of the cross-sectional structure of a reset member in a specific embodiment of the present invention.

[0021] Figure 6 It is a schematic diagram of the partial structure of the sliding plate in a specific embodiment of the present invention.

[0022] Figure 7 It is a schematic diagram of the internal structure of the connecting tube of a specific embodiment of the present invention.

[0023] Figure 8 It is a schematic diagram of the internal structure of the lifting plate in a specific embodiment of the present invention.

[0024] Reference numerals: 11. Gun body; 12. Air supply pipe; 13. Locking plate; 21. Mounting cover; 22. Slip ring; 23. First elastic member; 24. First connecting rod; 25. Back thrust block; 31. Connecting assembly; 311. Connecting cover; 312. Stop plate; 313. Guide plate; 314. First baffle; 32. Trigger assembly; 321. Second connecting rod; 322. Trigger plate; 323. First horizontal plate; 324. Connecting block; 33. Support pipe assembly; 331. First movable plate; 332. Groove; 333. Connecting shaft; 334. First pressure rod; 34. First stop assembly; 341. Second movable plate; 342. Through groove; 3 43. first mounting groove; 344. rotating shaft; 345. second baffle; 346. reset member; 3461. fixing plate; 3462. second elastic member; 3463. slide plate; 35. sliding assembly; 351. sliding plate; 352. unlocking plate; 353. convex plate; 354. second transverse plate; 36. reset assembly; 361. sliding sleeve; 362. sliding bar; 363. roller; 364. seesaw; 365. first fixing rod; 366. push plate; 41. Connecting tube; 42. Rotating disk; 43. Rotating column; 431. Spiral groove; 432. Vertical groove; 44. Lifting ring; 441. Protrusion; 45. Second fixing rod; 46. Second limiting assembly; 461. Lifting plate; 462. Second mounting groove; 463. Third elastic member; 464. Connecting frame; 465. Arc block; 466. Limiting rod; 47. Third fixing rod; 48. Second pressure rod; 49. Fourth elastic member. DETAILED DESCRIPTION

[0025] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0026] like Figures 1 to 8 As shown, the anti-drag device for the hose for hydrogen charging of the present invention includes a gun body 11, an air supply pipe 12, a locking plate 13, a reverse thrust mechanism, a trigger mechanism and two pressure mechanisms. The reverse thrust mechanism is arranged on the outside of one end of the gun body 11, the air supply pipe 12 is installed at the other end of the gun body 11, the trigger mechanism is arranged on the outside of the other end of the air supply pipe 12, and the locking plate 13 is arranged on the outside of the gun body 11 to lock the gun body 11 with the air charging port of the equipment. The two pressure mechanisms are respectively arranged on both sides of the trigger mechanism. When the air supply pipe 12 is dragged, the trigger mechanism is activated by the bending of the air supply pipe 12. At this time, the trigger mechanism triggers the reverse thrust mechanism and the pressure mechanism to operate, and the air supply pipe 12 is pushed to reset by the pressure applied by the pressure mechanism, and the reverse thrust mechanism pushes the gun body 11 to unlock and disengage from the equipment.

[0027] like Figure 1 and Figure 2 As shown, the reverse thrust mechanism includes a mounting cover 21, a slip ring 22, a first elastic member 23 and a plurality of pushers. The mounting cover 21 is mounted on the outer side of one end of the gun body 11. The interior of the mounting cover 21 has a cavity. The slip ring 22 is slidably connected in the cavity of the mounting cover 21. The first elastic member 23 is arranged between the inner wall of the mounting cover 21 and the slip ring 22 to drive the slip ring 22 to reset. In this embodiment, the first elastic member 23 is a spring. The first elastic member 23 is in a compressed state in an initial state. A plurality of pushers are mounted on one end of the slip ring 22. The plurality of pushers are distributed in a ring array with the axis of the slip ring 22 as the center. In this embodiment, the number of pushers is three. The pushers include a first connecting rod 24 and a reverse thrust block 25. The reverse thrust block 25 is mounted on one end of the first connecting rod 24. The first connecting rod 24 is mounted on one end of the slip ring 22. A hole for the reverse thrust block 25 to pass through is opened on the mounting cover 21.

[0028] After the trigger mechanism is triggered, the first elastic member 23 is reset. At this time, the first elastic member 23 drives one end of the first connecting rod 24 to pass through the mounting cover 21 through the slip ring 22. At the same time, the reverse thrust block 25 is pressed against the equipment. As the first elastic member 23 continues to push, under the action of the reverse thrust, the reverse thrust block 25 pushes the mounting cover 21 to move, so that the mounting cover 21 drives the gun body 11 to separate from the equipment.

[0029] like Figures 1 to 3 As shown, the trigger mechanism includes a connecting component 31 and two trigger components 32, a support pipe component 33, a first limit component 34, a sliding component 35, and a reset component 36. The connecting component 31 is arranged on the outside of one end of the gun body 11, and the two trigger components 32 are respectively arranged on both sides of the inner wall of the connecting component 31. The two trigger components 32 are symmetrically arranged along the axis of the gun body 11. The two support pipe components 33 are respectively hinged on the two trigger components 32. The air supply pipe 12 is arranged between the two support pipe components 33. The two first limit components 34 are both installed on one side of the inner wall of the connecting component 31. The two sliding components 35 are both slidably connected to one side of the connecting component 31. The first limit component 34 can limit the sliding component 35. One side of the sliding component 35 is connected to the slip ring 22. The two reset components 36 are both arranged on the connecting component 31.

[0030] When dragging occurs, a bend will occur between the gun body 11 and the air supply pipe 12. At this time, the air supply pipe 12 pushes the supporting pipe assembly 33 to move. The supporting pipe assembly 33 drives the first limiting assembly 34 to move horizontally through the trigger assembly 32, thereby releasing the limit on the sliding assembly 35, allowing the sliding assembly 35 to slide. During the sliding process of the sliding assembly 35, the first elastic member 23 begins to reset to disengage the gun body 11 from the device.

[0031] like Figure 1 and Figure 3 As shown, the connecting assembly 31 includes a connecting cover 311 installed at one end of the gun body 11, the connecting cover 311 has a partition, and limiting plates 312 are installed on both sides of the connecting cover 311. The limiting plates 312 are U-shaped, and the upper sliding connection of the limiting plates 312 is a guide plate 313. One end of the guide plate 313 passes through one side of the connecting cover 311 and extends to the interior of the connecting cover 311. The other end of the guide plate 313 has an arc surface. A first baffle plate 314 is installed on the outer side of the guide plate 313, and the first baffle plate 314 is located between the connecting cover 311 and the limiting plate 312.

[0032] like Figure 3 and Figure 4As shown, the trigger assembly 32 includes a second connecting rod 321, a trigger plate 322, a first transverse plate 323 and a connecting block 324. The second connecting rod 321 is installed on the inner wall of the connecting cover 311. The trigger plate 322 is rotatably connected to the outer side of the second connecting rod 321. The first transverse plate 323 is installed on the top of one side of the trigger plate 322. One end of the guide plate 313 is located on one side of the first transverse plate 323. The connecting block 324 is installed on the bottom of one side of the trigger plate 322. The support pipe assembly 33 is hinged to the trigger plate 322 through the connecting block 324.

[0033] like Figure 1 , Figure 3 and Figure 4 As shown, the support pipe assembly 33 includes a first movable plate 331 and a first pressure rod 334. The first pressure rod 334 is installed on one side of the first movable plate 331. A groove 332 is opened in the middle of the other side of the first movable plate 331. A connecting shaft 333 is installed on the inner wall of the groove 332. The connecting shaft 333 is rotatably connected to the connecting block 324. A torque spring (not shown in the figure) is arranged on the connecting shaft 333 to drive the first movable plate 331 to reset. The first movable plate 331 is arranged on one side of the air supply pipe 12.

[0034] When the air supply pipe 12 is dragged, the air supply pipe 12 pushes the first movable plate 331 to move through the first pressure rod 334. At the same time, due to the obstruction of the first horizontal plate 323, the first movable plate 331 can drive the trigger plate 322 to rotate during the movement, thereby squeezing the first limiting assembly 34 to drive the first limiting assembly 34 to move horizontally.

[0035] like Figure 3 and Figure 4 As shown, the first limiting assembly 34 includes a second movable plate 341, a first mounting groove 343, a rotating shaft 344 and a second baffle plate 345. The first mounting groove 343 is opened at the top of the second movable plate 341, and the rotating shaft 344 is rotatably connected to the inner wall of the first mounting groove 343. The second baffle plate 345 is installed on the outer side of the rotating shaft 344. A torque spring (not shown in the figure) is provided on the rotating shaft 344 to drive the second baffle plate 345 to reset. A protrusion is provided on one side of the inner bottom wall of the first mounting groove 343 to prevent the second baffle plate 345 from rotating in the release direction of the sliding assembly 35. A through groove 342 is opened on the top of one side of the second movable plate 341, and the side of the trigger plate 322 away from the first pressure rod 334 is located in the through groove 342. A reset member 346 is installed at the bottom of the second movable plate 341 to drive the second movable plate 341 to reset.

[0036] like Figure 4 and Figure 5As shown, the reset member 346 includes a fixed plate 3461, a second elastic member 3462 and a slide plate 3463. The fixed plate 3461 is L-shaped. One side of the fixed plate 3461 is installed on the inner wall of the connecting cover 311. The top of the fixed plate 3461 has a mounting cavity. The bottom end of the second elastic member 3462 is installed on the inner bottom wall of the mounting cavity of the fixed plate 3461. In this embodiment, the second elastic member 3462 is an elastic sheet. In other embodiments, the second elastic member 3462 is a spring. The bottom of the slide plate 3463 is installed on the top of the second elastic member 3462, and the top of the slide plate 3463 is installed on the bottom of the second movable plate 341.

[0037] When the trigger plate 322 rotates, the trigger plate 322 contacts the inner bottom wall of the through slot 342 of the second movable plate 341 and squeezes the second movable plate 341. At this time, the second elastic member 3462 is compressed, and the second movable plate 341 moves laterally, thereby driving the second baffle plate 345 to move laterally. When the trigger plate 322 is reset, the second elastic member 3462 is reset and drives the second baffle plate 345 to reset.

[0038] like Figure 2 , Figure 3 and Figure 6 As shown, the sliding assembly 35 includes a sliding plate 351, an unlocking plate 352 and a convex plate 353. The sliding plate 351 is formed by connecting a first L plate and a second L plate in the first position. The first L plate on the sliding plate 351 is located on the outside of the connecting cover 311 and is installed at one end of the slip ring 22. The unlocking plate 352 is installed at the bottom of the first L plate on the sliding plate 351. The second L plate on the sliding plate 351 is located inside the connecting cover 311. The convex plate 353 is installed at the bottom of the second L plate on the sliding plate 351. In the initial position, the convex plate 353 contacts the second baffle 345. A second cross plate 354 is installed on the top of the second L plate on the sliding plate 351. The second cross plate 354 is located in the partition of the connecting cover 311.

[0039] like Figure 3 and Figure 6 As shown, the reset assembly 36 includes a push plate 366 slidably connected in the interlayer of the connecting cover 311, a groove for the push plate 366 to pass through is opened on one side of the connecting cover 311, a rubber sleeve is sleeved on the outer side of the push plate 366, two slide bars 362 are installed on one side of the push plate 366, and a sliding sleeve 361 is sleeved on the outer side of the slide bar 362, and the sliding sleeve 361 is installed on the inner wall of the interlayer of the connecting cover 311, a roller 363 is installed on one side of the slide bar 362, and a rocker 364 is provided on one side of the roller 363, a second cross plate 354 is arranged between the two rockers 364 and contacts with the end of the rocker 364, and the middle part of the rocker 364 is rotatably connected to the first fixing rod 365, and the first fixing rod 365 is installed on the inner wall of the interlayer of the connecting cover 311.

[0040] When the slip ring 22 slides in the mounting cover 21, the slip ring 22 drives the sliding plate 351 to move synchronously. At the same time, the sliding plate 351 drives the second cross plate 354 to move in the partition of the connecting cover 311. During the movement, the second cross plate 354 pushes the two rocker plates 364 to rotate around the first fixed rod 365. At this time, the rocker plate 364 pushes the push plate 366 on the slide bar 362 to move out of the partition of the connecting cover 311 through the roller 363. When the slip ring 22 needs to be reset, the push plate 366 is pushed into the connecting cover 311.

[0041] like Figure 1 , Figure 3 , Figure 7 and Figure 8 As shown, the pressure-applying mechanism includes a connecting tube 41 installed on one side of the connecting cover 311, one end of the connecting tube 41 is rotatably connected to a rotating disk 42, one end of the rotating disk 42 is rotatably connected to a rotating column 43, the rotating column 43 is located inside the connecting tube 41, a spiral groove 431 is provided on the outer side of the rotating column 43, a vertical groove 432 connected to the spiral groove 431 is provided between the head end and the tail end of the spiral groove 431, a lifting ring 44 is sleeved on the outer side of the rotating column 43, a protrusion 441 is installed on the inner wall of the lifting ring 44, and in the initial position, the protrusion 441 is arranged above the inner part of the vertical groove 432, second fixing rods 45 are installed on both sides of the bottom end of the lifting ring 44, and a second limiting assembly 46 is installed on the bottom end of the second fixing rod 45.

[0042] like Figure 3 and Figure 7 As shown, a third fixing rod 47 is installed at the bottom end of the second limiting assembly 46, and the bottom end of the third fixing rod 47 passes through the connecting cover 311 and extends to the inside of the connecting cover 311, and a second pressure rod 48 is installed at the bottom end of the third fixing rod 47. The second pressure rod 48 is arranged on one side of the first movable plate 331, and a fourth elastic member 49 is arranged between the inner wall of the connecting tube 41 and the second limiting assembly 46. In this embodiment, the fourth elastic member 49 is a spring, and the fourth elastic member 49 is in a compressed state when in the initial position.

[0043] like Figure 3 , Figure 7 and Figure 8As shown, the second limiting assembly 46 includes a lifting plate 461 installed at the bottom end of the second fixing rod 45, a second mounting groove 462 is provided inside the lifting plate 461, a third elastic member 463 is installed on one side of the inner wall of the second mounting groove 462, in this embodiment, the third elastic member 463 is an elastic sheet, a connecting frame 464 is installed on one end of the third elastic member 463, an arc block 465 is installed on one side of the inner wall of the connecting frame 464, the guide plate 313 is located inside the connecting frame 464, and one end of the guide plate 313 with an arc surface contacts with the bottom of one side of the arc block 465, a groove for the guide plate 313 to pass through is provided on the lifting plate 461, a limiting rod 466 is installed on one side of the connecting frame 464, and a limiting hole for the limiting rod 466 to be inserted is provided on the inner side wall of the connecting cylinder 41.

[0044] When dragging occurs, the air supply pipe 12 pushes the first movable plate 331 to move through the first pressure rod 334, causing the trigger plate 322 to rotate. At the same time, the first cross plate 323 drives the guide plate 313 to move horizontally. During the rotation, the trigger plate 322 drives the second movable plate 341 to move horizontally, thereby disengaging the second baffle plate 345 from the convex plate 353. At this time, the first elastic member 23 drives one end of the first connecting rod 24 through the slip ring 22 to pass through the mounting cover 21. As the slip ring 22 continues to move, the sliding plate 351 pushes the locking plate 13 to move through the unlocking plate 352, thereby unlocking the gun body 11 from the device. The reverse push block 25 pushes the mounting cover 21 to move, thereby disengaging the gun body 11 from the device.

[0045] During the movement of the guide plate 313, the guide plate 313 pushes the arc block 465 to move, compressing the third elastic member 463, thereby driving the limiting rod 466 to disengage from the connecting tube 41 to release the limiting of the lifting plate 461. At this time, the fourth elastic member 49 pushes the lifting plate 461 to move horizontally, and the lifting plate 461 drives the second pressure rod 48 to move horizontally through the third fixed rod 47 to squeeze the first movable plate 331. At this time, the first movable plate 331 pushes the bent air supply pipe 12 to reset through the first pressure rod 334 to avoid excessive bending of the air supply pipe 12 and prevent leakage between the gun body 11 and the air supply pipe 12. During the horizontal movement of the lifting plate 461, the protrusion 441 moves horizontally along the vertical groove 432 and contacts the inner bottom wall of the vertical groove 432.

[0046] like Figures 1 to 8 As shown, the present invention also provides an anti-drag method using the above-mentioned anti-drag device for hydrogen charging hose, which specifically includes the following steps: S1: When dragging occurs, the air supply pipe 12 pushes the first movable plate 331 to move through the first pressure rod 334, so that the trigger plate 322 rotates, and at the same time, the first horizontal plate 323 drives the guide plate 313 to move horizontally; S2: During the rotation of the trigger plate 322, the first limit assembly 34 moves horizontally. At this time, the slip ring 22 drives one end of the first connecting rod 24 to pass through the mounting cover 21. As the slip ring 22 continues to move, the sliding plate 351 pushes the locking plate 13 to move through the unlocking plate 352, so that the gun body 11 is unlocked from the device, and the reverse push block 25 pushes the mounting cover 21 to move, so that the gun body 11 is separated from the device; During the movement of the guide plate 313, the second limit assembly 46 is unlocked from the connecting tube 41. At this time, the fourth elastic member 49 pushes the lifting plate 461 to move horizontally. The lifting plate 461 drives the second pressure rod 48 to move horizontally through the third fixed rod 47. The first movable plate 331 pushes the bent air supply pipe 12 to reset through the first pressure rod 334 to avoid excessive bending of the air supply pipe 12.

[0047] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A hydrogen charging hose anti-drag device, characterized in that: include: A gun body (11), an air supply pipe (12) and a locking plate (13), wherein the air supply pipe (12) is mounted on the gun body (11) and the locking plate (13) is arranged on the outside of the gun body (11); A reverse thrust mechanism is arranged outside one end of the gun body (11) to push the gun body (11) away from the device; A trigger mechanism is arranged outside the other end of the air supply pipe (12), the trigger mechanism comprising a connecting component (31) and two trigger components (32), a support pipe component (33), a first limit component (34), and a sliding component (35), the two trigger components (32) are respectively arranged on both sides of the inner wall of the connecting component (31), the support pipe component (33) is hinged on the trigger component (32), the first limit component (34) is installed on one side of the inner wall of the connecting component (31), and the sliding component (35) is arranged on the connecting component (31); Two pressure-applying mechanisms are respectively arranged on both sides of the trigger mechanism to push the air supply pipe (12) to reset. The pressure-applying mechanism comprises a connecting tube (41) mounted on the connecting assembly (31). A rotating disk (42) is arranged on the connecting tube (41). A rotating column (43) is arranged at one end of the rotating disk (42). A spiral groove (431) is provided on the rotating column (43). A vertical groove (432) is provided between the head end and the tail end of the spiral groove (431). A lifting ring (44) is sleeved on the rotating column (43). A protrusion (441) is installed on the inner wall of the lifting ring (44). A second fixing rod (45) is installed at the bottom end of the lifting ring (44). A second limiting assembly (46) is installed on the second fixing rod (45). A fourth elastic member (49) is installed at the top end of the second limiting assembly (46). A third fixing rod (47) is installed on the second limiting assembly (46). A second pressure rod (48) is installed on the third fixing rod (47).

2. The anti-drag device for hydrogen charging hose according to claim 1, characterized in that: The reverse thrust mechanism comprises a mounting cover (21), a slip ring (22), a first elastic member (23) and a plurality of push members, wherein the mounting cover (21) is mounted on the outside of one end of a gun body (11), the interior of the mounting cover (21) comprises a cavity, the slip ring (22) is slidably connected in the cavity of the mounting cover (21), the first elastic member (23) is arranged between the inner wall of the mounting cover (21) and the slip ring (22), a plurality of push members are mounted on one end of the slip ring (22), the push members comprise a first connecting rod (24) and a reverse thrust block (25), the reverse thrust block (25) is mounted on one end of the first connecting rod (24), and the first connecting rod (24) is mounted on one end of the slip ring (22).

3. The anti-drag device for hydrogen charging hose according to claim 2, characterized in that: The connection assembly (31) comprises a connection cover (311) mounted on one end of the gun body (11), the connection cover (311) having a partition, limit plates (312) being mounted on both sides of the connection cover (311), a guide plate (313) being slidably connected to the upper portion of the limit plate (312), one end of the guide plate (313) having a curved surface, and a first baffle (314) being mounted on the outer side of the guide plate (313).

4. The anti-drag device for hydrogen charging hose according to claim 3, characterized in that: The trigger assembly (32) comprises a second connecting rod (321), a trigger plate (322), a first transverse plate (323) and a connecting block (324); the second connecting rod (321) is mounted on the inner wall of the connecting cover (311); the trigger plate (322) is arranged on the outside of the second connecting rod (321); the first transverse plate (323) is mounted on the top of one side of the trigger plate (322); and the connecting block (324) is mounted on the bottom of one side of the trigger plate (322).

5. The anti-drag device for hydrogen charging hose according to claim 4, characterized in that: The support pipe assembly (33) comprises a first movable plate (331) and a first pressure rod (334), wherein the first pressure rod (334) is mounted on one side of the first movable plate (331), a groove (332) is provided in the middle of the other side of the first movable plate (331), and a connecting shaft (333) is mounted on the inner wall of the groove (332).

6. The anti-drag device for hydrogen charging hose according to claim 5, characterized in that: The first limiting assembly (34) comprises a second movable plate (341), a first mounting groove (343), a rotating shaft (344) and a second baffle (345); the first mounting groove (343) is provided at the top of the second movable plate (341); the rotating shaft (344) is provided on the inner wall of the first mounting groove (343); the second baffle (345) is installed on the rotating shaft (344); a protrusion is provided on one side of the inner bottom wall of the first mounting groove (343); a through groove (342) is provided on the top of one side of the second movable plate (341); and a reset member (346) is installed on the bottom of the second movable plate (341).

7. The anti-drag device for hydrogen charging hose according to claim 6, characterized in that: The sliding assembly (35) comprises a sliding plate (351), an unlocking plate (352) and a convex plate (353); the sliding plate (351) is formed by connecting a first L-plate and a second L-plate in the first position; the unlocking plate (352) is mounted on the bottom of the first L-plate on the sliding plate (351); the convex plate (353) is mounted on the bottom of the second L-plate on the sliding plate (351); a second transverse plate (354) is mounted on the top of the second L-plate on the sliding plate (351); and the second transverse plate (354) is located in the compartment of the connecting cover (311).

8. The anti-drag device for hydrogen charging hose according to claim 6, characterized in that: The trigger mechanism further comprises two reset components (36), and the two reset components (36) are both arranged in the compartment of the connection cover (311).

9. The anti-drag device for hydrogen charging hose according to claim 6, characterized in that: The second limiting assembly (46) comprises a lifting plate (461) mounted on the bottom end of the second fixing rod (45); a second mounting groove (462) is provided inside the lifting plate (461); a third elastic member (463) is mounted on the inner wall of the second mounting groove (462); a connecting frame (464) is mounted on one end of the third elastic member (463); an arc block (465) is mounted on the inner wall of the connecting frame (464); and a limiting rod (466) is mounted on one side of the connecting frame (464).

10. A method for preventing a hose from dragging when filling hydrogen, characterized in that: The anti-drag device for hydrogen charging hose according to claim 9 comprises the following steps: S1: When dragging occurs, the air supply pipe (12) pushes the first movable plate (331) to move via the first pressure rod (334), causing the trigger plate (322) to rotate, while the first horizontal plate (323) drives the guide plate (313) to move horizontally; S2: During the rotation of the trigger plate (322), the first limit assembly (34) is caused to move horizontally. At this time, the slip ring (22) drives one end of the first connecting rod (24) to pass through the mounting cover (21). As the slip ring (22) continues to move, the sliding plate (351) pushes the locking plate (13) to move through the unlocking plate (352), thereby unlocking the gun body (11) from the device. The reverse push block (25) pushes the mounting cover (21) to move, thereby disengaging the gun body (11) from the device. During the movement of the guide plate (313), the second limit assembly (46) is unlocked from the connecting tube (41), at which time the fourth elastic member (49) pushes the lifting plate (461) to move horizontally, and the lifting plate (461) drives the second pressure rod (48) to move horizontally via the third fixed rod (47), and the first movable plate (331) pushes the bent air supply pipe (12) to reset via the first pressure rod (334) to prevent the air supply pipe (12) from being excessively bent.

Images