Lifting appliance for lifting hydrogen storage tank

Abstract

The utility model relates to the technical field of hydrogen exchange station equipment, and aims to solve the technical problem of low hydrogenation efficiency. In order to solve the technical problem, the utility model provides the lifting appliance for lifting the hydrogen storage tank. The utility model comprises: a main body; the four pulley assemblies are arranged at the top of the main body; the pulley assembly comprises a frame body and pulleys rotationally connected with the frame body, and the frame body is connected with the main body in an up-down moving mode; the four rotary lifting hook assemblies and the pulley assemblies are arranged in a one-to-one correspondence manner; the rotary lifting hook assembly comprises a lifting hook body which is rotationally connected to the bottom of the main body; the four push rod assemblies are used for driving the rotary lifting hook assemblies to rotate; the push rod assembly comprises a push rod power part, a push rod and a cam; the push rod power part is connected with the main body, an output shaft of the push rod power part is connected with one end of the push rod, and the other end of the push rod is connected with the cam which is connected with the lifting hook body. According to the utility model, the hydrogen storage tank can be quickly replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen exchange station equipment, in particular to a hoisting device for hoisting a hydrogen storage tank. Background Art

[0002] With the promotion of new energy, fuel cells are being used in heavy-duty trucks and buses, which are more environmentally friendly. Currently, hydrogen fuel cells are primarily used at hydrogen exchange stations, but heavy-duty trucks and buses have larger onboard hydrogen tanks. The hydrogen tanks have first openings at the top of each of the four corners, and second openings at the ends of each side. The first and second openings correspond to each other and are interconnected.

[0003] The hydrogen refueling process requires the station's hydrogen refueling nozzle to be installed, refueled, and then removed, which can take more than 20 minutes. Therefore, a lifting device is needed to quickly and efficiently replace the hydrogen tank. Utility Model Content

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the above-mentioned problems existing in the prior art.

[0005] In order to solve the above technical problems, the utility model provides a lifting device for lifting a hydrogen storage tank, comprising:

[0006] main body;

[0007] Four pulley assemblies are arranged on the top of the main body; the pulley assembly includes a frame and a pulley connected to the frame for rotation, and the frame is connected to the main body for vertical movement;

[0008] Four rotating hook assemblies, each of which corresponds to the pulley assembly; the rotating hook assembly includes a hook body, which is rotatably connected to the bottom of the main body;

[0009] Four push rod assemblies are arranged in a one-to-one correspondence with the rotating hook assembly, and are used to drive the rotating hook assembly to rotate; the push rod assembly includes a push rod power unit, a push rod and a cam; the push rod power unit is connected to the main body, the output shaft of the push rod power unit is connected to one end of the push rod, the other end of the push rod is connected to the cam, and the cam is connected to the hook body.

[0010] In one embodiment of the present invention, two push rod assemblies located at one end of the main body share a push rod and a push rod power unit.

[0011] In one embodiment of the utility model, the present application also includes multiple connecting components, the pulley component is arranged corresponding to at least one connecting component, and the connecting component drives the pulley component to move up and down relative to the main body; the connecting component includes a rod and a plug; the rod is arranged vertically, one end of the rod is connected to the main body and the other end is connected to the plug; the frame is provided with a through hole that cooperates with the rod.

[0012] In one embodiment of the present invention, the outer wall of the rod portion is provided with at least one first plane, and the inner wall of the through hole of the frame body is provided with a second plane matching the first plane.

[0013] In one embodiment of the utility model, the present application also includes four loose rope sensing components, which are arranged in a one-to-one correspondence with the pulley components; the loose rope sensing components include an electrically connected loose rope sensing transmitting end and a loose rope sensing receiving end; one of the loose rope sensing transmitting end and the loose rope sensing receiving end is connected to the main body and the other is connected to the frame of the pulley assembly.

[0014] In one embodiment of the present invention, the pulley assembly further includes a pulley cover, which is disposed on the pulley.

[0015] In one embodiment of the present invention, the rotary hook assembly further comprises an upper protective plate and a lower protective plate provided on the upper surface and the lower surface of the free end of the hook body.

[0016] In one embodiment of the utility model, the present application also includes multiple lower limit sensing components, and the lower limit sensing components include an electrically connected lower limit transmitting end and a lower limit receiving end; of the lower limit transmitting end and the lower limit receiving end, one is set at the bottom of the main body and the other is set at the top of the hydrogen storage tank to be hoisted.

[0017] In one embodiment of the utility model, the present application also includes a lifting limit sensing component, which includes an electrically connected lifting limit transmitting end and a lifting limit receiving end; one of the lifting limit transmitting end and the lifting limit receiving end is arranged at the top of the main body and the other is arranged at the bottom of the lifting equipment.

[0018] In one embodiment of the present invention, the present application further includes at least two first guide positioning members, and the first guide positioning members are connected to the bottom of both ends of the main body.

[0019] In one embodiment of the present invention, the present application further includes a plurality of battery guide assemblies disposed at the bottom of the main body.

[0020] In one embodiment of the present invention, the present application further includes a plurality of pads provided at the bottom of the main body.

[0021] The above technical solution of the utility model has the following advantages compared with the prior art:

[0022] The lifting device for lifting the hydrogen storage tank described in the utility model has a push rod assembly that pushes the cam to rotate, thereby driving the hook body to rotate, so that when the lifting device descends to the hydrogen storage tank, the push rod is pushed out to make the hook body rotate outward, and at this time the hook body is hooked on the outer frame of the hydrogen storage tank, so that the hydrogen storage tank can be lifted; the lifting is achieved by the pulley assembly and the wire rope; when the hydrogen storage tank is lifted to the target position, the push rod is retracted to make the hook body rotate inward, and at this time the hook body is separated from the hydrogen storage tank, completing the lifting; thereby achieving rapid replacement of the hydrogen storage tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to make the content of the utility model easier to understand, the utility model is further described in detail below based on the specific embodiments of the utility model in conjunction with the accompanying drawings, wherein:

[0024] Figure 1 It is a three-dimensional schematic diagram of a hoisting device for hoisting a hydrogen storage tank in a preferred embodiment of the present utility model;

[0025] Figure 2 yes Figure 1 A partial cross-sectional view of a lifting device for lifting a hydrogen storage tank;

[0026] Figure 3 yes Figure 1 A front view of a lifting device for lifting a hydrogen storage tank;

[0027] Figure 4 yes Figure 1 A top view of a lifting device for lifting a hydrogen storage tank;

[0028] Figure 5 yes Figure 1 A side view of a lifting device for lifting a hydrogen storage tank;

[0029] Figure 6 yes Figure 1 A schematic diagram of the structure of a pulley assembly in a hoist for hoisting a hydrogen storage tank;

[0030] Figure 7 yes Figure 1 A schematic structural diagram of a rotating hook assembly in a hoist for hoisting a hydrogen storage tank;

[0031] Figure 8 yes Figure 1 A schematic diagram of the structure of a push rod assembly in a hoist for hoisting a hydrogen storage tank;

[0032] Description of the accompanying drawings: 100, main body; 110, pad;

[0033] 200, pulley assembly; 210, frame; 220, pulley; 230, pulley shaft; 240, pulley housing;

[0034] 300, rotating hook assembly; 310, hook body; 311, countersunk screw; 312, rotating handle; 313, rotating sleeve; 320, upper protective plate; 330, lower protective plate;

[0035] 400, push rod assembly; 410, push rod power unit; 420, push rod; 430, cam;

[0036] 500, connecting assembly; 510, rod; 520, plug; 530, first plane;

[0037] 600, loose rope sensing component; 610, loose rope sensing transmitting end; 620, loose rope sensing receiving end;

[0038] 700, lower limit sensing component;

[0039] 800, lifting limit sensor component;

[0040] 900, first guide positioning member;

[0041] 1000. Battery guide assembly;

[0042] 1100. Protective cover assembly. DETAILED DESCRIPTION

[0043] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0044] Reference Figures 1 to 8 As shown, the embodiment of the present utility model provides a hoist for hoisting a hydrogen storage tank, comprising:

[0045] The main body 100 is a frame structure, which is welded;

[0046] Four pulley assemblies 200 are mounted on top of the main body 100. The pulley assemblies 200 include a frame 210 and pulleys 220 rotatably connected to the frame 210. The frame 210 is connected to the main body 100 for vertical movement. The pulleys 220 are rotatably connected to the frame 210 via pulley shafts 230. The lifting equipment is equipped with four steel wire ropes, which are respectively wound around the pulleys 220 of the four pulley assemblies 200.

[0047] Four rotating hook assemblies 300, each corresponding to the pulley assembly 200; the rotating hook assembly 300 includes a hook body 310, which is rotatably connected to the bottom of the main body 100;

[0048] Four push rod assemblies 400 are arranged in a one-to-one correspondence with the rotating hook assembly 300, and are used to drive the rotating hook assembly 300 to rotate; the push rod assembly 400 includes a push rod power unit 410 (for example, a motor), a push rod 420 and a cam 430; the push rod power unit 410 is connected to the main body 100, the output shaft of the push rod power unit 410 is connected to one end of the push rod 420, the other end of the push rod 420 is connected to the cam 430, and the cam 430 is connected to the hook body 310.

[0049] Specifically, the push rod assembly 400 of this embodiment pushes the cam 430 to rotate, thereby driving the hook body 310 to rotate, so that when the hoist descends to the hydrogen storage tank, the push rod 420 is pushed out to cause the hook body 310 to rotate outward. At this time, the hook body 310 is hooked on the outer frame of the hydrogen storage tank, so that the hydrogen storage tank can be lifted; the lifting is achieved through the pulley assembly 200 and the wire rope; when the hydrogen storage tank is lifted to the target position, the push rod 420 is retracted to cause the hook body 310 to rotate inward. At this time, the hook body 310 is separated from the hydrogen storage tank, and the lifting is completed; thereby, rapid replacement of the hydrogen storage tank is achieved.

[0050] Furthermore, a countersunk screw 311 is installed at the top of the hook body 310, and a rotating handle 312 is connected to the top of the countersunk screw 311. A cam 430 is connected to the top of the rotating handle 312. The main body 100 has a circular hole for mounting the hook body 310, and a rotating sleeve 313 is installed in the circular hole. The hook body 310 and the rotating handle 312 are rotatably connected to the main body 100 via the rotating sleeve 313.

[0051] Furthermore, the two push rod assemblies 400 at one end of the main body 100 share a push rod 420 and a push rod power unit 410. In this way, the two ends of the push rod 420 are respectively connected to the cams 430 of the two push rod assemblies 400. Specifically, this embodiment saves manufacturing costs.

[0052] Furthermore, the present application also includes a plurality of connecting assemblies 500, and the pulley assembly 200 is provided corresponding to at least one connecting assembly 500, and the connecting assembly 500 drives the pulley assembly 200 to move up and down relative to the main body 100; the connecting assembly 500 includes a rod 510 and a plug 520. In some possible embodiments, the rod 510 and the plug 520 are threadedly connected. The rod 510 is arranged vertically, with one end of the rod 510 connected to the main body 100 and the other end connected to the plug 520; the frame 210 is provided with a through hole that cooperates with the rod 510. The frame 210 is passed through the rod 510. During the entire movement process, the wire rope will tighten the pulley assembly 200, and the pulley assembly 200 will be subjected to tension at the uppermost end of the rod 510. If the spreader and hydrogen storage tank deviate during interaction, the lower limit sensor assembly 700 next to the spreader hook body 310 will not fully sense the spreader. In this case, the spreader will not stop, and the wire rope will continue to loosen. At this time, the pulley assembly 200 will slide downward due to the reduced tension. When it slides down to the limit of the loose rope sensor assembly 600, it will stop, thus ensuring smooth and reliable operation.

[0053] Furthermore, at least one first flat surface 530 is formed on the outer wall of the rod portion 510, and a second flat surface is formed on the inner wall of the through hole of the frame body 210 to match the first flat surface 530. Specifically, the first flat surface 530 cooperates with the second flat surface to prevent the pulley assembly 200 from rotating in the horizontal plane when moving up and down, thereby ensuring stable lifting operation.

[0054] Furthermore, the present application also includes four loose rope sensing assemblies 600, which are arranged in a one-to-one correspondence with the pulley assembly 200. The loose rope sensing assemblies 600 include an electrically connected loose rope sensing transmitter 610 and a loose rope sensing receiver 620. One of the loose rope sensing transmitter 610 and the loose rope sensing receiver 620 is connected to the main body 100, and the other is connected to the frame 210 of the pulley assembly 200. Specifically, in this embodiment, when the loose rope sensing transmitter 610 and the loose rope sensing receiver 620 exchange information, it indicates that the wire rope is loose. Therefore, this embodiment can detect whether the wire rope is loose, achieving full automation.

[0055] Furthermore, the pulley assembly 200 further includes a pulley cover 240, which is covered on the pulley 220. Specifically, the pulley cover 240 can protect the pulley 220 and prevent dust accumulation or excessive corrosion.

[0056] Furthermore, the rotating hook assembly 300 also includes an upper protective plate 320 and a lower protective plate 330 provided on the upper and lower surfaces of the free end of the hook body 310. Specifically, the upper protective plate 320 and the lower protective plate 330 in this embodiment protect the hydrogen storage tank to be hoisted, preventing damage caused by collisions with the hook body 310 during the lifting process; they also prevent sparks from collisions and provide explosion protection. Thus, this embodiment has a simple structure, and the addition of explosion-proof measures makes it well suited to the scenario of replacing hydrogen fuel cells.

[0057] Furthermore, the present application also includes multiple lower limit sensing assemblies 700, each comprising an electrically connected lower limit transmitter and a lower limit receiver; one of the lower limit transmitter and the lower limit receiver is positioned at the bottom of the main body 100, and the other at the top of the hydrogen storage tank to be hoisted. Specifically, this embodiment uses information exchange between the lower limit transmitter and the lower limit receiver to identify the descent position of the hoist, thereby preventing the hoist from descending too low and colliding with the hydrogen storage tank to be hoisted, potentially causing safety accidents. In some embodiments, there are four lower limit sensing assemblies 700, each positioned at the fourth corner.

[0058] Furthermore, the present application also includes a lift limit sensing assembly 800, which includes an electrically connected lift limit transmitter and a lift limit receiver. One of the lift limit transmitter and the lift limit receiver is located at the top of the main body 100, and the other is located at the bottom of the lifting device. Specifically, the lift limit sensing assembly 800 in this embodiment can identify the position of the lifting device when it is raised, thereby preventing the lifting device from colliding with the lifting device if it is raised too high.

[0059] Furthermore, the present application also includes at least two first guide positioning members 900, and the first guide positioning members 900 are connected to the bottom of both ends of the main body 100. Correspondingly, a second guide positioning member matching the guide positioning member is provided at the bottom of the lifting device. Of the first guide positioning member 900 and the second guide positioning member, one is a guide cylinder and the other is a guide cone, and the guide cone is inserted into the guide cylinder. Specifically, the first guide positioning member 900 in this embodiment cooperates with the second guide positioning member of the lifting device, so that the sling and the lifting device are relatively limited, avoiding the sling and the hydrogen storage tank to be hoisted from shaking back and forth and left and right when they move horizontally with the lifting device after lifting, thereby improving the safety factor.

[0060] Because the outer frame of the hydrogen storage tank is close to the hydrogen fuel cell, it can prevent the hydrogen storage tank from rotating when the hoist is lifted. This may cause a collision with a heavy truck or a battery swap station, which is very dangerous. Therefore, the present application further includes multiple battery guide assemblies 1000 located at the bottom of the main body 100. Specifically, the battery guide assemblies 1000 in this embodiment can fix the hydrogen storage tank. In this way, the hydrogen storage tank is constrained by the battery guide assemblies 1000 during lifting, and will not rotate significantly, thereby improving the safety factor.

[0061] Furthermore, the present application also includes a plurality of pads 110 provided at the bottom of the main body 100. Specifically, when the sling of this embodiment contacts the outer frame of the hydrogen storage tank, the pads 110 contact first, which can provide a buffer and make it more stable.

[0062] Furthermore, the present application also includes a protective cover assembly 1100, which seals important components such as the push rod assembly 400 and the handle 312 to prevent dust accumulation from affecting the service life of the mechanism, and is also more aesthetically pleasing.

[0063] The present application can be applied to various hydrogen storage tanks. By changing the specifications of the hook body 310 and the position of the battery guide assembly 1000, it can be applied to the replacement of hydrogen storage tanks of various sizes.

[0064] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A hoist for hoisting a hydrogen storage tank, characterized by: include: main body; Four pulley assemblies are arranged on the top of the main body; the pulley assembly includes a frame and a pulley rotatably connected to the frame, and the frame is connected to the main body for vertical movement; Four rotating hook assemblies, each of the rotating hook assemblies is provided in a one-to-one correspondence with the pulley assemblies; the rotating hook assembly includes a hook body, and the hook body is rotatably connected to the bottom of the main body; Four push rod assemblies, which are arranged in a one-to-one correspondence with the rotating hook assembly and are used to drive the rotating hook assembly to rotate; the push rod assembly includes a push rod power unit, a push rod and a cam; the push rod power unit is connected to the main body, the output shaft of the push rod power unit is connected to one end of the push rod, the other end of the push rod is connected to the cam, and the cam is connected to the hook body.

2. The lifting device for lifting a hydrogen storage tank according to claim 1, characterized in that: The two push rod assemblies located at one end of the main body share a push rod and a push rod power unit.

3. The lifting device for lifting a hydrogen storage tank according to claim 1, characterized in that: It also includes multiple connecting components, the pulley component is arranged corresponding to at least one of the connecting components, and the connecting component drives the pulley component to move up and down relative to the main body; the connecting component includes a rod and a plug; the rod is arranged vertically, one end of the rod is connected to the main body, and the other end is connected to the plug; the frame is provided with a through hole that cooperates with the rod.

4. The lifting device for lifting a hydrogen storage tank according to claim 3, characterized in that: The outer wall of the rod portion is provided with at least one first plane, and the inner wall of the through hole of the frame body is provided with a second plane matching the first plane.

5. The lifting device for lifting a hydrogen storage tank according to claim 3, characterized in that: It also includes four loose rope sensing components, which are arranged in a one-to-one correspondence with the pulley components; the loose rope sensing components include an electrically connected loose rope sensing transmitting end and a loose rope sensing receiving end; one of the loose rope sensing transmitting end and the loose rope sensing receiving end is connected to the main body, and the other is connected to the frame of the pulley assembly.

6. The lifting device for lifting a hydrogen storage tank according to claim 1, characterized in that: The rotary hook assembly further includes an upper protective plate and a lower protective plate provided on the upper surface and the lower surface of the free end of the hook body.

7. The lifting device for lifting a hydrogen storage tank according to claim 1, characterized in that: It also includes multiple lower limit sensing components, which include an electrically connected lower limit transmitting end and a lower limit receiving end; one of the lower limit transmitting end and the lower limit receiving end is arranged at the bottom of the main body and the other is arranged at the top of the hydrogen storage tank to be hoisted.

8. The lifting device for lifting a hydrogen storage tank according to claim 1, characterized in that: It also includes a lifting limit sensing component, which includes an electrically connected lifting limit transmitting end and a lifting limit receiving end; one of the lifting limit transmitting end and the lifting limit receiving end is arranged at the top of the main body and the other is arranged at the bottom of the lifting equipment.

9. The lifting device for lifting a hydrogen storage tank according to claim 1, characterized in that: It also includes at least two first guide positioning members, which are connected to the bottoms of both ends of the main body.

10. The lifting device for lifting a hydrogen storage tank according to claim 1, characterized in that: It also includes a plurality of battery guide components arranged at the bottom of the main body.

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