A battery pack hoisting device

Abstract

The application relates to the technical field of hoisting equipment, and discloses a battery pack hoisting device, which comprises a hanger and at least two hoisting units installed on the hanger along a first direction, the hoisting unit comprises a guide rail, a connecting rod assembly and two hook assemblies, the two hook assemblies are arranged on the guide rail along a second direction, and the two hook assemblies are connected through the connecting rod assembly; the hook assembly comprises a walking wheel, a hook, a chassis and a lock catch; a self-locking plate with a lock hole is installed on the guide rail, one end of the lock catch is clamped in the lock hole of the self-locking plate, a pull rope is connected to the lock catch, and pulling the pull rope can make one end of the lock catch disengage from the lock hole of the self-locking plate; the connecting rod assembly comprises a first supporting seat, a first rotating plate and two pull rods, the bottom of the first supporting seat is installed on the hanger, and when the first rotating plate rotates, the two pull rods drive the two groups of hook assemblies to move synchronously along the guide rail. The battery pack hoisting device is convenient to disassemble after the hoisting of the battery pack is completed, so that the hoisting efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hoisting equipment, in particular to a battery pack hoisting device. BACKGROUND

[0002] The battery pack of an electric truck is heavy and large in size, so it needs to be hoisted during the battery replacement process of the electric truck to be installed at a predetermined position. The cost of the battery pack accounts for a large proportion of the cost of the electric truck, and the battery pack itself has flammable and explosive characteristics, so safety needs to be ensured during hoisting to prevent the battery pack from falling.

[0003] Currently, when installing a battery pack of an electric truck, a hoisting chain is first used to pass through the hanging rod on the top of the battery pack, then the hook of a traveling crane is used to hang on the hoisting chain, and finally the battery pack is hoisted to a predetermined position on the truck for assembly. After assembly is completed, the hoisting chain needs to be disassembled from the hanging rod of the battery pack. Since the distance between the hanging rod of the battery pack and the ground is greater than 3 meters, a worker needs to climb onto the truck to remove the hoisting chain from the battery pack. Therefore, it is inconvenient to disassemble the hoisting equipment after hoisting the battery pack of the electric truck, thereby affecting the hoisting efficiency. SUMMARY

[0004] The purpose of the present application is to provide a battery pack hoisting device which is convenient to disassemble after hoisting the battery pack, thereby improving the hoisting efficiency.

[0005] In order to achieve the above-mentioned purpose, the present application provides a battery pack hoisting device, comprising a hoisting frame and at least two hoisting units installed on the hoisting frame in a first direction, the hoisting unit comprising a guide rail, a linkage assembly and two hook assemblies, the two hook assemblies being arranged on the guide rail in a second direction, and the two hook assemblies being connected by the linkage assembly;

[0006] The hook assembly comprises a traveling wheel, a hook, a chassis and a lock catch, the traveling wheel and the hook being installed on the lower part of the chassis, the lock catch being installed on the upper part of the chassis, the traveling wheel being slidingly arranged on the guide rail, and the hook extending downward out of the hoisting frame;

[0007] A self-locking plate with a lock hole is installed on the guide rail, one end of the lock catch being clamped in the lock hole of the self-locking plate, and a pull rope being connected to the lock catch, pulling the pull rope being able to make one end of the lock catch disengage from the lock hole of the self-locking plate;

[0008] The connecting rod assembly comprises a first support base, a first rotating plate and two pull rods, the bottom of the first support base is mounted on the hanger, the middle of the first rotating plate is hingedly connected to the top end of the first support base, one end of each of the two pull rods is hingedly connected to the bottom plate of each of the two hook assemblies, and the other end of each of the two pull rods is hingedly connected to the two ends of the first rotating plate; when the first rotating plate rotates, the two pull rods drive the two hook assemblies to move along the guide rail synchronously.

[0009] In some embodiments, the lock comprises a second support base, a second rotating plate, two latches, two latch seats and a spring mechanism.

[0010] The bottom of the second support base is mounted on the bottom plate, the middle of the second rotating plate is hingedly connected to the middle of the second support base, one end of each of the two latches is hingedly connected to the two ends of the second rotating plate, one end of the spring mechanism is mounted on the bottom plate, and the other end of the spring mechanism is connected to one of the latches; the elastic force generated by the spring mechanism allows the other end of each of the latches to pass through the insertion hole of each of the latch seats and then be inserted into the lock hole of the self-locking plate, so as to define the position of the hook assembly.

[0011] In some embodiments, the spring mechanism comprises a fixed block, a moving block, a bolt and a spring body.

[0012] The fixed block is mounted on the bottom plate, one end of the bolt passes through the middle of the fixed block and is provided with a first mounting hole, the moving block is fixed to the side surface of one of the latches and is provided with a second mounting hole, and the two ends of the spring body are respectively hung in the first mounting hole and the second mounting hole; the pulling force provided by the spring body allows the latch to be inserted into the insertion hole of the latch seat.

[0013] In some embodiments, the lock further comprises a swing arm and a hinge piece.

[0014] One end of the swing arm is hingedly connected to the top end of the second support base, the lower part of the swing arm is fixedly connected to the upper part of the second rotating plate, and the other end of the swing arm is hingedly connected to the hinge piece, and the hinge piece is connected to the pull rope.

[0015] In some embodiments, the guide rail comprises two side plates spaced apart along a first direction and an enclosing plate mounted at the two ends of the two side plates, and the two side plates are mounted on the hanger.

[0016] The walking wheels are arranged in the two side plates, the enclosing plate is provided with a through hole, and one end of the pull rope extends to the outside of the hanger through the through hole.

[0017] In some embodiments, the bottom plate comprises a lower bottom plate and an upper bottom plate mounted on the lower bottom plate.

[0018] The walking wheels are four in number and are installed around the bottom of the lower bottom plate; the lifting hooks are fixed to the middle of the bottom of the lower bottom plate, and the locks are installed on the upper bottom plate.

[0019] In some embodiments, the lifting hooks of each lifting unit are at the same horizontal position, and a buffer pad is arranged inside the lifting hook.

[0020] In some embodiments, the lifting frame comprises a first support, a support column and a second support, the second support is installed on the first support through the support column, and the guide rail is installed on the first support.

[0021] In some embodiments, a plurality of hanging plates are further installed on the first support, a shackle is installed on the hanging plate, and the shackle is used to connect a chain for lifting.

[0022] In some embodiments, the first rotating plate and the two pull rods are in the same plane, and one end of each pull rod is provided with a hinge barrel.

[0023] The hinge barrel comprises a barrel body, a sheath and a rotating shaft, the barrel body is installed on the chassis, the outer wall of the sheath is connected to one end of the pull rod, the sheath is arranged on the barrel body, the rotating shaft is sequentially installed in the sheath and the barrel body, the bottom of the rotating shaft rotates in the barrel body, and the upper part of the rotating shaft is fixedly connected with the sheath.

[0024] The battery pack lifting device and design method have the beneficial effects that: the guide rail is provided with a self-locking plate with a lock hole, one end of the lock is clamped in the lock hole of the self-locking plate, a pull rope is connected to the lock, pulling the pull rope can make one end of the lock separate from the lock hole of the self-locking plate, so that the lifting hook assembly can move on the guide rail; one end of the two pull rods is correspondingly hinged to the chassis of the two lifting hook assemblies, the other end of the two pull rods is hinged to the two ends of the first rotating plate, when the first rotating plate rotates, the two pull rods drive the two lifting hook assemblies to move synchronously along the guide rail, the hooks at the bottom of the two lifting hook assemblies are separated from each other, so that the hooks are easily detached from the battery pack, and the lifting efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The overall structure schematic diagram of the battery pack lifting device provided by the embodiment of the present application is shown.

[0026] Figure 2 The lifting frame structure schematic diagram of the battery pack lifting device provided by the embodiment of the present application is shown.

[0027] Figure 3 The Figure 2 The local enlarged structure schematic diagram of A in the middle is shown.

[0028] Figure 4 A top view structural schematic diagram of the battery pack hoisting device provided by the embodiment of the present application.

[0029] Figure 5 An installation enlarged structural schematic diagram of the connecting rod assembly and the hook assembly of the battery pack hoisting device provided by the embodiment of the present application.

[0030] Figure 6 An enlarged structural schematic diagram of the battery pack hoisting device provided by the embodiment of the present application. Figure 5 An enlarged structural schematic diagram of the battery pack hoisting device provided by the embodiment of the present application.

[0031] Figure 7 An enlarged structural schematic diagram of the hook assembly of the battery pack hoisting device provided by the embodiment of the present application.

[0032] Figure 8 An installation enlarged structural schematic diagram of the battery pack hoisting device provided by the embodiment of the present application.

[0033] Figure 9 A use schematic diagram of the battery pack hoisting device provided by the embodiment of the present application.

[0034] In the figure: 1, a hanger; 11, a first support; 12, a support column; 13, a second support; 14, a hanging plate; 15, a shackle; 16, a chain; 2, a hoisting unit; 21, a guide rail; 211, a lock hole; 212, a self-locking plate; 213, a side plate; 214, an end plate; 22, a connecting rod assembly; 221, a first support seat; 222, a first rotating plate; 223, a pull rod; 224, a hinged cylinder; 2241, a cylinder body; 2242, a sheath; 2243, a rotating shaft; 23, a hook assembly; 231, a walking wheel; 232, a hook; 2321, a buffer pad; 233, a chassis; 2331, a lower bottom plate; 2332, an upper bottom plate; 234, a shackle; 2341, a second support seat; 2342, a second rotating plate; 2343, a bolt; 2344, a bolt seat; 2345, a spring mechanism; 23451, a fixed block; 23452, a moving block; 23453, a bolt; 23454, a spring body; 2346, a swing arm; 2347, a hinged piece; 235, a pull rope; a, a first direction; b, a second direction. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application.

[0036] It should be understood that, in the description of the present application, the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. The terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated, that is, the features with "first", "second" can explicitly or implicitly include one or more of the features. In addition, unless otherwise stated, the meaning of "multiple" is two or more.

[0037] According to Figures 1-9 As shown in the drawings, the battery pack hoisting device provided by the embodiment of the present application comprises a hanging bracket 1 and at least two hoisting units 2 installed on the hanging bracket in a first direction a, the hoisting unit 2 comprises a guide rail 21, a connecting rod assembly 22 and two hook assemblies 23, the two hook assemblies 23 are arranged on the guide rail 21 in a second direction b, and the two hook assemblies 23 are connected through the connecting rod assembly 22; wherein the first direction a and the second direction b are perpendicular to each other.

[0038] The hook assembly 23 comprises a walking wheel 231, a hook 232, a chassis 233 and a lock catch 234, the walking wheel 231 and the hook 232 are installed on the lower part of the chassis 233, the lock catch 234 is installed on the upper part of the chassis 233, the walking wheel 231 is slidingly arranged on the guide rail 21, and the hook 232 extends downward out of the hanging bracket 1;

[0039] A self-locking plate 212 with a lock hole 211 is installed on the guide rail 21, one end of the lock catch 234 is clamped in the lock hole 211 of the self-locking plate 212, a pull rope 235 is connected to the lock catch 234, and pulling the pull rope 235 can make one end of the lock catch 234 disengage from the lock hole 211 of the self-locking plate 212;

[0040] The connecting rod assembly 22 comprises a first support seat 221, a first rotating plate 222 and two pull rods 223, the bottom of the first support seat 221 is installed on the hanging bracket 1, the middle part of the first rotating plate 222 is hinged to the top end of the first support seat 221, one end of each of the two pull rods 223 is hinged to the chassis 233 of each of the two hook assemblies 23, and the other end of each of the two pull rods 223 is hinged to the two ends of the first rotating plate 222, when the first rotating plate 222 rotates, the two pull rods 223 drive the two hook assemblies 23 to move synchronously along the guide rail 21.

[0041] Based on the above setting, in use, the guide rail 21 is provided with a self-locking plate 212 provided with a locking hole 211, one end of the locking buckle 234 is clamped in the locking hole 211 of the self-locking plate 212, the locking buckle 234 is connected with a pull rope 235, and pulling the pull rope 235 can make one end of the locking buckle 234 disengage from the locking hole 211 of the self-locking plate 212, so that the hook assembly 23 can move on the guide rail 21; one end of each of the two pull rods 223 of the connecting rod assembly 22 is hingedly connected to the bottom plate 233 of each of the two hook assemblies 23, and the other end of the two pull rods 223 is hingedly connected to the two ends of the first rotating plate 222, so that when the first rotating plate 222 rotates, the two pull rods 223 drive the two hook assemblies 23 to move synchronously along the guide rail 21, and the hooks 232 at the bottom of the two hook assemblies 23 are separated from each other, so that the hooks 232 are easily detached from the battery pack, and the hoisting efficiency is improved.

[0042] According to Figure 7 and 8 , the locking buckle 234 comprises a second support seat 2341, a second rotating plate 2342, two latches 2343, two latch seats 2344 and a spring mechanism 2345;

[0043] The second support seat 2341 is mounted at the bottom of the bottom plate 233, the second rotating plate 2342 is hingedly connected to the middle of the second support seat 2341, one end of each of the two latches 2343 is hingedly connected to the two ends of the second rotating plate 2342, one end of the spring mechanism 2345 is mounted on the bottom plate 233, and the other end of the spring mechanism 2345 is connected with one of the latches 2343, so that the spring force generated by the spring mechanism 2345 makes the other end of each of the latches 2343 pass through the insertion hole of each of the latch seats 2344 and then inserted into the locking hole 211 of the self-locking plate 212, so as to limit the position of the hook assembly 23.

[0044] In this way, during hoisting, the locking buckle 234 can limit the position movement of the walking wheel 231, so that the hook 232 is stable in position during the process of suspending the battery pack, thereby ensuring the safety of the hoisting process.

[0045] According to Figure 8 , the spring mechanism 2345 comprises a fixed block 23451, a moving block 23452, a bolt 23453 and a spring body 23454;

[0046] The fixed block 23451 is installed on the chassis 233, one end of the bolt 23453 is arranged in the middle of the fixed block 23451, and a first mounting hole is arranged; the moving block 23452 is fixed to the side of one of the latches 2343, and a second mounting hole is arranged; the spring body 23454 is hung in the first mounting hole and the second mounting hole at both ends, respectively, and the spring body 23454 provides a pulling force to make the latch 2343 inserted into the insertion hole of the latch seat 2344. In actual use, the spring body 23454 only exerts a pulling force on one of the latches 2343, and since one end of each of the two latches 2343 is correspondingly hinged to both ends of the second rotating plate 2342, through the transmission of the second rotating plate 2342, the other latch 2343 can be synchronously moved and inserted into the insertion hole of the latch seat 2344, and further inserted into the lock hole 21 of the self-locking plate 212, so as to realize the stability of the positioning of the lock catch 234.

[0047] According to Figure 8 As shown in the drawings, the lock catch 234 further comprises a swing arm 2346 and a hinge member 2347;

[0048] One end of the swing arm 2346 is hinged to the top end of the second support seat 2341, the lower part of the swing arm 2346 is fixedly connected with the upper part of the second rotating plate 2342, the hinge member 2347 is hinged to the other end of the swing arm 2346, and the hinge member 2347 is connected with the pull rope 235.

[0049] Based on the above arrangement, when the pull rope 235 is pulled, the swing arm 2346 can drive the second rotating plate 2342 to rotate counterclockwise, so that the two latches 2343 at both ends of the second rotating plate 2342 can be separated from the lock hole 211 of the self-locking plate 212 and the insertion hole of the latch seat 2344, and then the pulling force is applied to the pull rope 235, which can drive the walking wheels 231 of the hook assembly 23 to move on the guide rail 21, and further, the two hook assemblies 23 are connected through the connecting rod assembly 22, and the pulling force is transmitted through the connecting rod assembly 22, so that the hooks 232 of the two hook assemblies 23 move away from each other, so that the hooks 232 are only separated from the battery pack by pulling the pull rope 235, which is convenient to disassemble after hoisting and improves the hoisting efficiency.

[0050] As Figure 1 shown, the guide rail 21 comprises two side plates 213 spaced apart along the first direction a and an enclosing plate 214 installed at both ends of the two side plates 213, and the two side plates are installed on the hanger;

[0051] The walking wheels 231 are arranged in the two side plates 213, the enclosing plate 214 is provided with a through hole, and one end of the pull rope 235 extends to the outside of the hanger 1 through the through hole. Among them, the enclosing plate 214 can limit the stroke of the walking wheels 231 in the side plate 213, and prevent the walking wheels 231 from being separated from the side plate 213.

[0052] As shown in Figure 7 The chassis 233 comprises a lower bottom plate 2331 and an upper bottom plate 2332 mounted on the lower bottom plate 2331;

[0053] The walking wheels 231 are four in number and are installed at the bottom of the four sides of the lower bottom plate 2331, which facilitates the movement of the walking wheels 231 in the guide rail 21; the lifting hooks 232 are fixed at the middle position of the bottom of the lower bottom plate 2331, and the locking buckles 234 are installed on the upper bottom plate 2332, which facilitates the clamping of the locking buckles 234 with the self-locking holes 211 of the self-locking plates 212 installed on the guide rail 21.

[0054] In one embodiment, the lifting hooks 232 of each lifting unit 2 are at the same horizontal position, and the inner side of the lifting hook 232 is provided with a buffer pad 2321. This makes the lifting hook 232 stable during the lifting of the battery pack, and the buffer pad 2321 can protect the battery pack during lifting.

[0055] In one embodiment, the lifting frame 1 comprises a first support 11, a support column 12, and a second support 13, the second support 13 being installed on the first support 11 through the support column 12, and the guide rail 21 being installed on the first support 11. The first support 11 and the second support 13 are arranged in a layered manner, so that the lifting frame 1 has space inside to install the guide rail 2.

[0056] According to Figure 2 and 3 A plurality of hanging plates 14 are also installed on the first support 11, and the hanging plates 14 are provided with shackles 15 for connecting the chain 16 used for lifting. The shackles 15 make it convenient to disassemble and assemble the chain 16 and the hanging plates 14.

[0057] According to Figure 5 and 6 The first rotating plate 222 and the two pull rods 223 are in the same plane, and one end of each pull rod 223 is provided with a hinge cylinder 224;

[0058] The hinge cylinder 224 comprises a cylinder body 2241, a sheath 2242, and a rotating shaft 2243. The cylinder body 2241 is installed on the chassis 233, the sheath 2242 is connected to one end of the pull rod 223, the sheath 2242 is arranged on the cylinder body 2241, and the rotating shaft 2243 is installed in the sheath 2242 and the cylinder body 2241 in sequence. The bottom of the rotating shaft 2243 rotates in the cylinder body 2241, and the upper part of the rotating shaft 2243 is fixedly connected with the sheath 2242.

[0059] In use, pulling the pull rope 235 makes the lock catch 234 on the hook assembly 23 disengage from the lock hole 211 in the self-locking plate 212 on the guide rail 21, and then the pull rope 235 drives the walking wheels 231 of the hook assembly 23 to move outward in the guide rail 21, and the two groups of hook assemblies 23 are connected through the connecting rod assembly 22, so that the hooks 232 of the two groups of hook assemblies 23 move synchronously in opposite directions, so as to facilitate the dismounting of the hooks 232 from the battery pack, and improve the efficiency of lifting. Artificial climbing to the top of the battery pack for dismounting is avoided, and the safety of the lifting process is maintained.

[0060] The above only describes the preferred embodiments of the present application, and it should be noted that those skilled in the art can make several improvements and replacements without departing from the technical principles of the present application, and these improvements and replacements should also be considered as the protection scope of the present application.

Claims

1. A battery pack hoisting device characterized by comprising: The crane includes a hanger and at least two hoisting units mounted on the hanger along a first direction, the hoisting unit includes a guide rail, a connecting rod assembly and two hook assemblies, the two hook assemblies are arranged on the guide rail along a second direction, and the two hook assemblies are connected by the connecting rod assembly; The hook assembly includes a walking wheel, a hook, a chassis and a lock catch, the walking wheel and the hook are mounted on the lower part of the chassis, the lock catch is mounted on the upper part of the chassis, the walking wheel is slidingly arranged on the guide rail, and the hook extends downward out of the hanger; A self-locking plate with a lock hole is mounted on the guide rail, one end of the lock catch is clamped in the lock hole of the self-locking plate, a pull rope is connected to the lock catch, and pulling the pull rope can make one end of the lock catch disengage from the lock hole of the self-locking plate; The connecting rod assembly includes a first support seat, a first rotating plate and two pull rods, the bottom of the first support seat is mounted on the hanger, the middle part of the first rotating plate is hingedly connected to the top end of the first support seat, one end of each of the two pull rods is hingedly connected to the chassis of each of the two hook assemblies, and the other end of each of the two pull rods is hingedly connected to the two ends of the first rotating plate, when the first rotating plate rotates, the two pull rods drive the two hook assemblies to move along the guide rail synchronously; The lock catch includes a second support seat, a second rotating plate, two latches, two latch seats and a spring mechanism; The bottom of the second support seat is mounted on the chassis, the middle part of the second rotating plate is hingedly connected to the middle part of the second support seat, one end of each of the two latches is hingedly connected to the two ends of the second rotating plate, one end of the spring mechanism is mounted on the chassis, the other end of the spring mechanism is connected to one of the latches, and the elastic force generated by the spring mechanism makes the other end of each of the latches pass through the insertion hole of each of the latch seats and then be inserted into the lock hole of the self-locking plate, so as to limit the position of the hook assembly.

2. The battery pack hoist of claim 1, wherein: The spring mechanism includes a fixed block, a moving block, a bolt and a spring body; The fixed block is mounted on the chassis, one end of the bolt passes through the middle part of the fixed block and is provided with a first mounting hole, the moving block is fixed to the side surface of one of the latches and is provided with a second mounting hole, and the two ends of the spring body are respectively hung in the first mounting hole and the second mounting hole, and the pulling force provided by the spring body makes the latch be inserted into the insertion hole of the latch seat.

3. The battery pack hoist of claim 1, wherein: The lock catch further includes a swing arm and a hinge piece; One end of the swing arm is hingedly connected to the top end of the second support seat, the lower part of the swing arm is fixedly connected to the upper part of the second rotating plate, the hinge piece is hingedly connected to the other end of the swing arm, and the hinge piece is connected to the pull rope.

4. The battery pack hoist of claim 1, wherein: The guide rail includes two side plates spaced apart along a first direction and an enclosing plate mounted on the two ends of the two side plates, and the two side plates are mounted on the hanger; The walking wheel is arranged in the two side plates, the enclosing plate is provided with a through hole, and one end of the pull rope extends to the outside of the hanger through the through hole.

5. The battery pack hoist of claim 1, wherein: The chassis includes a lower bottom plate and an upper bottom plate mounted on the lower bottom plate. The walking wheels are four in number and are installed around the bottom of the lower bottom plate; the lifting hooks are fixed to the middle position of the bottom of the lower bottom plate, and the lock buckles are installed on the upper bottom plate.

6. The battery pack hoist of claim 1, wherein: The lifting hooks of each lifting unit are in the same horizontal position, and the inner side of the lifting hooks is provided with a buffer pad.

7. The battery pack hoist of claim 1, wherein: The lifting frame comprises a first support, a support column and a second support, the second support is installed on the first support through the support column, and the guide rail is installed on the first support.

8. The battery pack hoist of claim 7, wherein: A plurality of hanging plates are also installed on the first support, the hanging plates are provided with shackles, and the shackles are used to connect the chain for lifting.

9. The battery pack hoist of any of claims 1-8, wherein: The first rotating plate and the two pull rods are in the same plane, and one end of each pull rod is provided with a hinged barrel. The hinged barrel comprises a barrel body, a sheath and a rotating shaft, the barrel body is installed on the bottom disc, the outer wall of the sheath is connected to one end of the pull rod, the sheath is arranged on the barrel body, the rotating shaft is installed in the sheath and the barrel body in sequence, the bottom part of the rotating shaft rotates in the barrel body, and the upper part of the rotating shaft is fixedly connected with the sheath.

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