Replaceable hydrogen supply device and fuel cell forklift

Abstract

The utility model relates to the technical field of fuel cell forklifts, and discloses a replaceable hydrogen supply device and a fuel cell forklift, which comprise a rack and a box body detachably mounted on the rack, at least one hydrogen bottle is arranged in the box body, and the hydrogen bottle is used for providing hydrogen for the fuel cell system; the two ends of the box body extend upwards to be provided with hanging plates respectively, a plurality of hanging rings are arranged on the sides, deviating from each other, of the two hanging plates, and the hanging rings are used for hoisting the box body. The plurality of hydrogen cylinders are arranged in the box body, other hydrogen cylinders in the box body can be replaced in time after gas in one hydrogen cylinder is used up, the gas exchange time is greatly saved, the working efficiency of the fuel cell forklift is improved, on the other hand, the box body only needs to be lifted away from the fuel cell forklift through the lifting ring, and then a new box body is replaced, so that the gas exchange efficiency is greatly improved. And the fuel cell forklift can be immediately put into use, so that the problem of difficulty in ventilation of the fuel cell forklift at present is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a fuel cell forklift field, especially in a replaceable hydrogen supply device and fuel cell forklift. BACKGROUND

[0002] Fuel cell forklift is a kind of forklift using fuel cell as power source, with the enhancement of global environmental protection consciousness and the pursuit of sustainable development, fuel cell forklift as a kind of clean, efficient energy solution, its market prospect is more and more broad, simultaneously, with the continuous improvement of industrial chain and the continuous progress of technology, fuel cell forklift also hopes to become one of the important development trends of forklift industry.

[0003] At present, fuel cell forklift is mainly applied in factory area, since most of the factory area is not set up hydrogenation station, and fuel cell forklift is not allowed to go out of factory area, if needing to charge forklift, hydrogen bottle in fuel cell forklift is disassembled and is centrally transported to hydrogenation station to charge, seriously influence the gas exchange efficiency of fuel cell forklift, thereby causing the working efficiency of fuel cell forklift to be greatly influenced. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving above-mentioned problem and provides a kind of replaceable hydrogen supply device and fuel cell forklift, solve the problem of existing fuel cell forklift gas exchange troublesome, not high efficiency.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A replaceable hydrogen supply device, comprising:

[0007] Rack and box body detachably installed on the rack;

[0008] At least one hydrogen bottle is installed in the box body, and the hydrogen bottle is used to provide hydrogen for fuel cell system;

[0009] The box body is provided with a hanging plate extending upward at both ends respectively, and a plurality of lifting eyes are arranged on the side away from each other of the two hanging plates, and the lifting eyes are used to lift the box body.

[0010] Preferably, the box body further comprises:

[0011] Support, arranged in the box body;

[0012] Partition layer, embedded in the support, for separating hydrogen bottles.

[0013] Preferably, it further comprises first fastening device and second fastening device for fixing the box body;

[0014] The first fastening device is installed on the hanging plate, and the second fastening device is installed on the fuel cell forklift shell outside the box body.

[0015] The first fastening device is located above the second fastening device, and the first fastening device and the second fastening device are connected through a tightening device.

[0016] Preferably, the first fastening device comprises:

[0017] The locking hole-shaped sliding groove is installed on the hanging plate.

[0018] The latch is slidably connected to one end of the sliding groove.

[0019] The V-shaped lock plate has its closed end fixedly connected to the other end of the latch, and a crossbar is connected between the two open ends of the V-shaped lock plate.

[0020] Preferably, the sliding groove comprises a fixed slot and an unlocking slot.

[0021] The fixed slot is perpendicular to the top end surface of the box body.

[0022] The unlocking slot is connected to the end of the fixed slot away from the box body.

[0023] When the latch is in the fixed slot, the box body is in a tightly locked state.

[0024] When the latch is in the unlocking slot, the box body is in an unlocked state.

[0025] Preferably, the second fastening device comprises:

[0026] The base plate is fixedly connected to the forklift shell.

[0027] The U-shaped buckle ring has its two open ends fixedly connected to the base plate, and its closed end is connected to the crossbar through a tightening device.

[0028] Preferably, it further comprises a limiting device for limiting the displacement of the box body, the limiting device is arranged around the box body, and the bottom of the limiting device is fixedly connected to the rack.

[0029] Preferably, the limiting device comprises a wedge-shaped column.

[0030] The end of the wedge-shaped column away from the box body is fixedly connected to the rack.

[0031] The end of the wedge-shaped column close to the box body is provided with an inclined guide surface.

[0032] The included angle between the inclined guide surface and the side surface of the box body is an acute angle.

[0033] The clamping surface is arranged on the end of the inclined guide surface close to the box body and extends vertically downward.

[0034] Preferably, the box body further comprises:

[0035] A plurality of openings are arranged equidistantly on the top of the box body.

[0036] Two mutually opposite support plates are arranged on the top of the box body along the length direction of two sides of the openings respectively.

[0037] A plurality of bending plates are connected equidistantly on the top of the support plates.

[0038] A plurality of exhaust ports are arranged equidistantly along the length direction of the support plates between adjacent two bending plates.

[0039] A top plate is fixedly connected with the bending plates at the bottom, and the projection area of the top plate on the top of the box body covers the projection areas of the two support plates on the top of the box body.

[0040] A reinforcing plate is connected with the top plate at one end and arranged perpendicularly with the top plate, and connected with the top surface of the box body at the other end.

[0041] The fuel cell forklift comprises the hydrogen supply device.

[0042] The hydrogen supply device has the advantages that: a plurality of hydrogen cylinders are arranged in the box body, so that when the gas in one hydrogen cylinder is used up, other hydrogen cylinders in the box body can be replaced in time, thereby greatly saving the gas replacement time, improving the working efficiency of the fuel cell forklift, and on the other hand, the box body can be hung away from the fuel cell forklift through a lifting ring, and then a new box body is replaced, so that the fuel cell forklift can be immediately put into use, thereby solving the difficulty in gas replacement of the fuel cell forklift. BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1 is a structural schematic view of the hydrogen supply device of the utility model;

[0044] Figure 2 is a structural schematic view of the support and the partition layer in the box body of the utility model;

[0045] Figure 3 is a structural schematic view of the first fastening device and the second fastening device of the utility model;

[0046] Figure 4 is a structural schematic view of the lock hole-shaped sliding groove of the utility model;

[0047] Figure 5 is a structural schematic view of the limiting device of the utility model;

[0048] Figure 6Is one perspective structure schematic view of the box of the utility model;

[0049] Figure 7 Is the structure schematic view of roof, reinforcing plate, bending plate and support plate of the utility model;

[0050] Figure 8 Is the structure schematic view of opening on support plate of the utility model;

[0051] Figure 9 Is the structure schematic view of hydrogen supply device installation on fuel cell fork truck of the utility model;

[0052] Among them: rack 10, box 20, hanging plate 30, lifting ring 40, first fastening device 50, second fastening device 60, limiting device 70;

[0053] Support 21, partition 22, opening 23, support plate 24, bending plate 25, exhaust port 26, roof 27, reinforcing plate 28, chute 51, fixed groove 511, unlocking groove 512, bolt 52, V-shaped lock plate 53, cross bar 54, base plate 61, U-shaped buckle 62, wedge-shaped column 71, inclined guide surface 72, clamping surface 73. DETAILED DESCRIPTION

[0054] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements throughout. The embodiments described below by referring to the drawings are exemplary and are used only for explaining the present application, and should not be understood as limiting the present application.

[0055] In the description of the embodiments of the present application, the terms "first", "second" are only used for the purpose of description, and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0056] In addition, the terms "first", "second" are only used for the purpose of description, and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise stated, the meaning of "multiple" is two or more. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0057] As Figure 1As shown, a replaceable hydrogen supply device comprises:

[0058] A rack 10 and a box 20 detachably mounted on the rack 10;

[0059] At least one hydrogen bottle is mounted in the box 20, and the hydrogen bottle is used to provide hydrogen for a fuel cell system;

[0060] Two ends of the box 20 are upwardly extended to be provided with hanging plates 30, and a plurality of lifting rings 40 are arranged on sides of the two hanging plates 30 away from each other, and the lifting rings 40 are used to lift the box 20.

[0061] Specifically, the rack 10 is mounted at the rear of a fuel cell forklift cab, a detachable box 20 is mounted on the top of the rack 10, not less than one hydrogen bottle is arranged in the box 20, and the two ends of the box 20 are upwardly extended to be provided with the hanging plates 30, and the lifting rings 40 are arranged on the sides of the two hanging plates 30 away from each other, and two lifting rings 40 are arranged on each side in the embodiment. When the hydrogen in the hydrogen bottle is used up, the fuel cell system at the bottom of the fuel cell forklift cannot continue to generate electricity due to the lack of hydrogen supply, and the fuel cell forklift needs to replace the hydrogen. However, most factory areas cannot directly hydrogen filling (the fuel cell forklift is not allowed to leave the factory area), and the hydrogen bottle in the fuel cell forklift needs to be disassembled and transported to a hydrogen filling station for inflation, which greatly affects the working efficiency of the fuel cell forklift. In the utility model, a plurality of hydrogen bottles are arranged in the box 20, and when one of the hydrogen bottles is used up, the other hydrogen bottles in the box 20 can be replaced in time (the gas pipeline can be replaced, and the replacement can be completed in 5-7 minutes), which greatly saves the gas replacement time and improves the working efficiency of the fuel cell forklift.

[0062] In another embodiment of the utility model, a display and a hydrogen filling interface are further arranged on one side of the box 20. The display can timely monitor the remaining amount of each hydrogen bottle, and the forklift operator can be reminded to replace the hydrogen bottle. Further, when all the hydrogen bottles in the box 20 are used up, the box 20 can be lifted away from the fuel cell forklift through the lifting rings 40, and then a new box 20 (the new box 20 stores hydrogen bottles that have been inflated in advance) is replaced. The fuel cell forklift can be immediately put into use, and the difficulty in replacing the hydrogen of the fuel cell forklift is solved.

[0063] As shown, another embodiment of the utility model comprises: Figure 2 A support 21 is arranged in the box 20;

[0064] A partition layer 22 is embedded in the support 21, and the partition layer 22 is used to separate the hydrogen bottles.

[0065]

[0066] ​The bracket 21 in the box 20 is used to support the hydrogen bottle, and a partition 22 is arranged in the bracket 21, and the hydrogen bottle can be placed on each partition 22 Figure 2 Two hydrogen bottles are placed in each partition 22, and different numbers of hydrogen bottles can be arranged according to different requirements. The partition 22 is a ring, which is convenient for accommodating the hydrogen bottle, and a shock-absorbing sponge is arranged on each partition 22. Specifically, in order to ensure that the hydrogen bottles do not collide with each other, the distance between adjacent hydrogen bottles is not less than 10 cm.

[0067] Further explanation, as shown in Figure 3 It further comprises a first fastening device 50 and a second fastening device 60 for fixing the box 20;

[0068] The first fastening device 50 is installed on the hanging plate 30, and the second fastening device 60 is installed on the fuel cell forklift shell outside the box 20;

[0069] The first fastening device 50 is located above the second fastening device 60, and the first fastening device 50 and the second fastening device 60 are connected through a tightening device.

[0070] Further explanation, the first fastening device 50 and the second fastening device 60 are both used to stabilize the box 20, so as to avoid the shaking of the box 20. Specifically, the first fastening device 50 is installed on the hanging plate 30, and the hanging plate 30 has higher strength compared with the box 20 below and will not be easily deformed. The second fastening device 60 is installed near both ends of the box 20, specifically installed on the shell of the fuel cell forklift. The first fastening device 50 and the second fastening device 60 are connected through a tightening device (not shown in the figure). The tightening device includes a tightening belt, an elastic rope and other long strip-shaped objects with contraction function. The two ends of the tightening device are respectively wound on the first fastening device 50 and the second fastening device 60. Under the pulling of the contraction of the tightening device, the hanging plate 30 will exert downward pressure on the box 20, so that the box 20 is tightly attached to the bracket 21, thereby reducing the shaking of the box 20 and ensuring the safety of the hydrogen bottles in the box 20.

[0071] Further explanation, as shown in Figure 3 The first fastening device 50 comprises:

[0072] The slide groove 51 is in the shape of a lock hole and is installed on the hanging plate 30;

[0073] The bolt 52 is slidably connected to the slide groove 51 at one end;

[0074] The V-shaped lock plate 53 is fixedly connected with the other end of the bolt 52 at the closed end, and a cross bar 54 is connected between the two open ends of the V-shaped lock plate 53.

[0075] The bolt 52 moves in the sliding slot 51, thereby driving the V-shaped lock plate 53 to move. Since the two openings 23 ends of the V-shaped lock plate 53 are connected with the crossbar 54, the crossbar 54 is used to be connected with the tightening device, and the crossbar 54 moves, thereby driving the tightening device to move (generally, the crossbar 54 moves only when the box 20 needs to be loosened). The pulling force of the tightening device on the crossbar 54 is transmitted to the hanging plate 30 through the V-shaped lock plate 53, the bolt 52 and the lock hole-shaped sliding slot 51 in sequence, and the hanging plate 30 exerts downward pressure on the box 20, thereby ensuring that the box 20 is tightly pressed on the rack 10.

[0076] Further, as shown in Figure 4 The sliding slot 51 includes a fixed slot 511 and an unlocking slot 512;

[0077] The fixed slot 511 is perpendicular to the top end surface of the box 20;

[0078] The unlocking slot 512 is connected with one end of the fixed slot 511 away from the box 20;

[0079] When the bolt 52 is in the fixed slot 511, the box 20 is in a tightly locked state;

[0080] When the bolt 52 is in the unlocking slot 512, the box 20 is in an unlocked state.

[0081] The fixed slot 511 is perpendicular to the top end surface of the box 20, thereby ensuring that the pressure exerted by the hanging plate 30 on the box 20 is vertically downward, and the box 20 will not be offset. When the fuel cell forklift runs, one end of the bolt 52 will always fall into the fixed slot 511, thereby ensuring that the box 20 is always subjected to downward pressure and will not shake. When the hydrogen cylinder or the box 20 needs to be replaced, the bolt 52 can be pulled out by sliding the bolt 52 into the unlocking slot 512, thereby releasing the control of the hanging plate 30 on the box 20.

[0082] Further, as shown in Figure 3 The second fastening device 60 includes:

[0083] The base plate 61 is fixedly connected with the forklift shell;

[0084] The U-shaped buckle 62 is fixedly connected with the base plate 61 at the two openings 23 ends, and the closed end is connected with the crossbar 54 through the tightening device.

[0085] Further, the limiting device 70 for limiting the displacement of the box 20 is further included, the limiting device 70 is arranged around the box 20, and the bottom of the limiting device 70 is fixedly connected with the rack 10.

[0086] The function of the limiting device 70 is to further limit the displacement of the box 20 when the fuel cell forklift is running, and the limiting device 70 also plays a guiding role, ensuring that the replaced box 20 can accurately fall on the rack 10, further reducing the time of replacing the box 20, and improving the gas exchange efficiency of the fuel cell forklift.

[0087] Further description, as shown in Figure 5 The limiting device 70 includes a wedge-shaped column 71;

[0088] The end of the wedge-shaped column 71 away from the box 20 is fixedly connected with the rack 10;

[0089] The end of the wedge-shaped column 71 close to the box 20 is provided with an inclined guide surface 72;

[0090] The included angle between the inclined guide surface 72 and the side surface of the box 20 is an acute angle;

[0091] The end of the inclined guide surface 72 close to the box 20 is vertically extended downward and provided with a clamping surface 73.

[0092] Specifically, the included angle between the inclined guide surface 72 and the box 20 is between 35°-45°, and the bottom of the box 20 will move downward along the inclined guide surface 72 after contacting the inclined guide surface 72. When the box 20 slides to the bottom end of the inclined guide surface 72, it will fall on the designated position of the rack 10. Due to the existence of the clamping surface 73, the four sides of the box 20 will be in close contact with the clamping surface 73. The clamping surface 73 further limits the movement of the box 20 on the rack 10, ensuring that the hydrogen bottles in the box 20 will not shake randomly.

[0093] Further description, as shown in Figures 6-8 The box 20 further comprises:

[0094] A plurality of openings 23 are equidistantly arranged on the top of the box 20;

[0095] Two mutually opposite support plates 24 are arranged on the top of the box 20 along the length direction of the two sides of the opening 23, respectively;

[0096] A plurality of bending plates 25 are equidistantly connected to the top of the support plate 24;

[0097] A plurality of exhaust ports 26 are equidistantly arranged between adjacent two bending plates 25 along the length direction of the support plate 24;

[0098] A top plate 27 is fixedly connected with the bending plate 25 at the bottom, and the projection area of the top plate 27 on the top of the box 20 covers the projection areas of the two support plates 24 on the top of the box 20;

[0099] A reinforcing plate 28 is connected to the bottom of the top plate 27 and arranged perpendicularly to the top plate 27, and the other end of the reinforcing plate 28 is connected to the top surface of the box 20.

[0100] Further, since hydrogen is lighter than air, the hydrogen discharged from the hydrogen cylinder will accumulate on the top of the box 20 and be discharged from the openings 23 on the top of the box 20, and the openings 23 are arranged at equal intervals to ensure that the hydrogen accumulated on the top of the box 20 can be discharged from different positions and not accumulated locally (only some of the openings 23, the support plates 24 and the top plate 27 are shown in the figure, and according to different use locations, multiple rows of openings 23, support plates 24 and top plates 27 can be arranged on the top of the box 20).

[0101] The support plates 24 are arranged along the length direction of the openings 23, and the support plates 24 are used to provide support points for the top plate 27, and the projection area of the top plate 27 on the top of the box 20 covers the projection areas of the two support plates 24 on the top of the box 20 (the top plate 27 can cover the exhaust ports 26, the support plates 24 and the bent plates 25), so that rainwater from the outside cannot enter the box 20 through the top, and the fuel cell forklift of the present application can also be used outdoors on rainy days, and further, a plurality of exhaust ports 26 are arranged in the length direction of the support plates 24, so that the hydrogen discharged from the openings 23 can be discharged in eight directions, and the hydrogen will not be concentrated and discharged upward, and a large amount of hydrogen will not be accumulated on the roof in a short time.

[0102] As shown in Figure 9 A fuel cell forklift comprising the hydrogen supply device.

[0103] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the description of the present application, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0104] Although the present application has been disclosed through the above embodiments, the protection scope of the present application is not limited thereto, and any deformation, replacement, etc. of the above components will fall within the scope of the claims of the present application without deviating from the concept of the present application.

Claims

1. A replaceable hydrogen supply device characterized by comprising: The utility model provides a hydrogen supply device, comprising: a rack and a box body detachably mounted on the rack; at least one hydrogen cylinder is installed in the box body, and the hydrogen cylinder is used for providing hydrogen for a fuel cell system; two lifting plates are respectively arranged at two ends of the box body and extend upward, and a plurality of lifting rings are arranged on sides of the two lifting plates away from each other, and the lifting rings are used for lifting the box body.

2. The replaceable hydrogen supply device of claim 1, wherein The box body further comprises: a support arranged in the box body; a partition layer embedded in the support, and the partition layer is used for separating the hydrogen cylinders.

3. The replaceable hydrogen supply device of claim 1, wherein: The box body further comprises a first fastening device and a second fastening device for fixing the box body; the first fastening device is mounted on the lifting plate, and the second fastening device is mounted on a fuel cell forklift shell outside the box body; the first fastening device is located above the second fastening device, and the first fastening device and the second fastening device are connected through a tightening device.

4. A replaceable hydrogen supply device according to claim 3, wherein The first fastening device comprises: a lock hole-shaped sliding groove mounted on the lifting plate; a bolt slidably connected to one end of the sliding groove; a V-shaped lock plate, a closed end of the V-shaped lock plate is fixedly connected to the other end of the bolt, and a cross bar is connected between two open ends of the V-shaped lock plate.

5. A replaceable hydrogen supply device according to claim 4, wherein: The sliding groove comprises a fixed groove and an unlocking groove; the fixed groove is perpendicular to the top end surface of the box body; the unlocking groove is connected to one end of the fixed groove away from the box body; when the bolt is in the fixed groove, the box body is in a locked and fixed state; when the bolt is in the unlocking groove, the box body is in an unlocked and released state.

6. A replaceable hydrogen supply device according to claim 5, wherein The second fastening device comprises: a base plate fixedly connected to the forklift shell; a U-shaped buckle ring, two open ends of the U-shaped buckle ring are fixedly connected to the base plate, and a closed end is connected to the cross bar through a tightening device.

7. The replaceable hydrogen supply of claim 1, wherein: The box body further comprises a limiting device for limiting displacement of the box body, the limiting device is arranged around the box body, and a bottom of the limiting device is fixedly connected to the rack.

8. A replaceable hydrogen supply device according to claim 7, wherein: The limiting device comprises a wedge-shaped column; one end of the wedge-shaped column away from the box body is fixedly connected to the rack; an inclined guide surface is arranged at one end of the wedge-shaped column close to the box body; an included angle between the inclined guide surface and a side surface of the box body is an acute angle; a clamping surface is vertically arranged at one end of the inclined guide surface close to the box body.

9. The replaceable hydrogen supply device of claim 1, wherein The box body further comprises: a plurality of openings are arranged at the top of the box body at equal intervals; two mutually opposite support plates are arranged at the top of the box body along the length direction of two sides of the opening respectively; a plurality of bending plates are connected to the top of the support plate at equal intervals; a plurality of exhaust ports are arranged between adjacent two bending plates along the length direction of the support plate at equal intervals; a top plate is fixedly connected to the bending plate at the bottom, and a projection area of the top plate on the top of the box body covers projection areas of the two support plates on the top of the box body; a reinforcing plate is connected to the top plate at one end and is arranged perpendicularly to the top plate, and the other end of the reinforcing plate is connected to the top surface of the box body.

10. A fuel cell fork truck characterized by, The utility model provides a hydrogen supply device comprising any one of claims 1-9.

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