A lifting mechanism suitable for a battery pack trolley

Abstract

The application discloses a lifting mechanism suitable for a battery group trolley, which is used for quickly lifting the battery group trolley in a battery box. The lifting mechanism is arranged on both sides of the battery group trolley and comprises an extension cantilever assembly, a clamping shaft one assembly, a clamping shaft two assembly, a driving link assembly, a prying lever assembly and a driving sliding block assembly. The prying lever assembly is sleeved on the extension cantilever assembly. According to the lever principle, the prying lever assembly moves, drives the driving sliding block assembly to move in the sliding groove of the sliding groove block assembly in the extension cantilever assembly, the connecting rod assembly in the driving link assembly moves under the driving of the driving sliding block assembly, the arc surface of the semicircular arc plate assembly interacts with the clamping shaft one assembly, and then the lifting of the trolley is realized. Compared with the prior art, the technical scheme of the application has the advantages of simple structure, convenient disassembly and assembly, simple operation, less time, and single-person operation.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of rail transit, and in particular to a lifting mechanism suitable for a battery pack trolley. BACKGROUND

[0002] In the field of rail transit, a new type of energy storage is used on a locomotive, which can provide use in special occasions and environments. In order to improve the power of the energy storage battery, as many battery packs as possible are placed to improve the power of the entire energy storage device. The rail transit industry has strict requirements for product reliability, safety, maintainability, etc. Therefore, in order to meet the space installation size of the locomotive, the battery box must be compact, which will bring some inconvenience in operation. Due to the limited space inside the locomotive, the battery pack trolley needs to be installed and freely moved in and out, and the distance between the operating spaces of the devices (such as wiring space, operating space, water cooling pipe space, etc.) needs to be ensured. For example, when maintaining later, a group of battery pack trolleys need to be disassembled. The thickness of the fork of the forklift is greater than the clearance of the battery pack trolley, so that the fork of the forklift cannot be smoothly inserted to the bottom, the battery pack trolley cannot be lifted, and the battery pack trolley cannot be disassembled from the extended tooling to the ground.

[0003] The conventional battery box with this structure for rail transit is generally installed in a hanging form at the bottom of the vehicle. When maintaining and repairing, the distance from the battery box to the rail surface (generally more than 200 mm) can be used to easily insert the fork of the forklift into the bottom of the battery box to lift it, and the battery box can be moved away. In addition, there is a conventional layout form, that is, the battery box is installed on the top area of the vehicle, and can be lifted and disassembled by a travelling crane.

[0004] However, when the battery box is installed entirely on the inside of the locomotive car (4 groups of battery pack trolleys are arranged inside, and when maintaining, the battery pack trolleys are pulled out of the battery box, that is, protruding outside the box), the distance between the battery pack trolley and the inside bottom of the car is too small, for example, only 29*mm (and the thickness of the fork of the normal forklift increases from the front end to reach a length of 0.5 meters, and the thickness of the fork at this point will reach more than 40 mm, which causes the fork of the forklift to be unable to smoothly extend into the bottom of the battery pack trolley and lift it. If the fork is pressed into the bottom of the battery pack trolley due to insufficient operation height, the paint on the bottom of the battery pack trolley will be easily peeled off, and the battery pack trolley will be deformed.

[0005] Therefore, for the compact battery pack trolley installed in the compartment, a device or mechanism capable of quickly lifting the trolley to a certain height (mainly to exceed the thickness of the fork) and stabilizing the trolley is needed. The conventional mechanism can use a trapezoidal screw and a screw sleeve to cooperate, and the lifting can be realized by rotating the trapezoidal screw to drive. The battery pack trolley can also be lifted by using a jack. For the battery pack trolley to be lifted as a whole, in the case of one maintenance personnel, a sleeve or wrench is needed to rotate the T-shaped screw back and forth, so that the four T-shaped screws are roughly rotated to a certain horizontal height. If the jack is used to lift the battery pack trolley, the height of one end needs to be raised, the wood block is placed, and then the height of the other end is raised, the wood block is placed, and the process is repeated four times to complete the lifting of the battery pack trolley.

[0006] The operation mode of the above structure has the disadvantages of needing multiple assistance operations, being too time-consuming and being relatively complex. SUMMARY

[0007] The purpose of the present application is to provide a lifting mechanism suitable for a battery pack trolley, which uses a linkage mechanism and lever principle to realize the lifting and sliding limiting locking of the battery pack trolley, and the technical scheme of the present application is simple in structure, convenient to disassemble and assemble, simple to operate, time-saving, and can be operated by one person.

[0008] The technical solution for achieving the purpose of the present application is a lifting mechanism suitable for a battery pack trolley, which is used to quickly lift the battery pack trolley in the battery box. The lifting mechanism is arranged on both sides of the battery pack trolley. The lifting mechanism includes an extension cantilever assembly, a clamping shaft one assembly, a clamping shaft two assembly, a driving linkage assembly, a prying rod assembly, and a driving sliding block assembly. The extension cantilever assembly is fixedly connected with the battery box. The clamping shaft one assembly is fixed on the battery pack trolley. The semicircular plate assembly in the driving linkage assembly is rotatably connected with the extension cantilever assembly through the clamping shaft two assembly. The arc surface of the semicircular plate assembly is in contact with the lifting wheel in the clamping shaft one assembly. The connecting rod assembly in the driving linkage assembly is in contact with the driving sliding block assembly. The driving sliding block assembly is slidingly installed in the sliding groove of the sliding groove block assembly in the extension cantilever assembly. The prying rod assembly is sleeved on the extension cantilever assembly. The prying rod assembly moves to drive the driving sliding block assembly to move. The connecting rod assembly in the driving linkage assembly moves under the driving of the driving sliding block assembly, so that the arc surface of the semicircular plate assembly interacts with the clamping shaft one assembly, thereby realizing the lifting of the trolley.

[0009] Compared with the prior art, the present application has the following advantages:

[0010] (1) The present application uses a linkage mechanism and lever principle to realize the lifting and sliding limiting locking of the battery pack trolley, which is simple in structure.

[0011] (2) The present application adopts the setting of positioning gap, realizing quick positioning.

[0012] (3) The present application sets the telescopic clamping plate and other components, realizing quick installation of each component of the whole lifting structure.

[0013] (4) The present application realizes quick lifting of the battery pack trolley through pure mechanical mode and single-person operation.

[0014] (5) The present application sets the sliding groove block component 3-10, realizing the position limiting and keeping of the battery pack trolley. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 For the lifting mechanism assembly completed - solid Figure 1 (Small car not lifted state);

[0016] Figure 2 For the lifting mechanism assembly completed - solid Figure 2 (Small car is lifted state);

[0017] Figure 3 For the battery pack trolley - assembly completed schematic solid;

[0018] Figure 4 For the battery box schematic solid drawing;

[0019] Figure 5 For the extension cantilever assembly - solid schematic diagram;

[0020] Figure 6 For the extension cantilever assembly - solid area enlarged view;

[0021] Figure 7 For the sliding groove block component - explosion diagram;

[0022] Figure 8 For the sliding groove block component - solid drawing;

[0023] Figure 9 For the sliding groove block 3-10-1 solid Figure 1 ;

[0024] Figure 10 For the sliding groove block 3-10-1 solid Figure 2 ;

[0025] Figure 11 For the blocking cover plate two components 3-10-2;

[0026] Figure 12 For the protruding block 3-10-3 solid Figure 1 ;

[0027] Figure 13 For the protruding block 3-10-3 solid Figure 2 ;

[0028] Figure 14 Structure diagram of big spring 3-10-4

[0029] Figure 15 Structure diagram of pry stop shaft 3-9

[0030] Figure 16 Exploded view of clamping shaft assembly 4

[0031] Figure 17 Perspective view of clamping shaft assembly 4

[0032] Figure 18 Clamping shaft one 4-1 perspective Figure 1 ;

[0033] Figure 19 Clamping shaft one 4-1 perspective Figure 2 ;

[0034] Figure 20 Perspective view of stopper 44-2

[0035] Figure 21 Perspective view of plug cover plate (universal part) 4-3

[0036] Figure 22 Perspective view of telescopic clamping plate (universal part) 4-4 Figure 1 ;

[0037] Figure 23 Perspective view of telescopic clamping plate (universal part) 4-4 Figure 2 ;

[0038] Figure 24 Perspective view of spring positioning shaft (universal part) 4-5

[0039] Figure 25 Perspective view of small spring (universal part) 4-6

[0040] Figure 26 Lifting wheel 4-7 perspective Figure 1 ;

[0041] Figure 27 Lifting wheel 4-7 perspective Figure 2 ;

[0042] Figure 28 Exploded view of clamping shaft two assembly 5

[0043] Figure 29 Perspective view of clamping shaft 25-1

[0044] Figure 30 Perspective view of driving link assembly 6

[0045] Figure 31A three-dimensional diagram of the semicircular plate assembly 6-1

[0046] Figure 32 is a perspective view of the connecting rod assembly 6-2;

[0047] Figure 33 It is a three-dimensional diagram of the connecting rod 6-2-1;

[0048] Figure 34 6-3 is a stereogram of the rotating short axis;

[0049] Figure 35 is a perspective view of the prying rod assembly 7;

[0050] Figure 36 It is a front view of the prying rod assembly 7;

[0051] Figure 37 To drive the slider assembly 8 three-dimensional Figure 1 ;

[0052] Figure 38 To drive the slider assembly 8 three-dimensional Figure 2 ;

[0053] Figure 39 Schematic diagram of extending the cantilever assembly and inserting it into the box Figure 1 ;

[0054] Figure 40 Schematic diagram of extending the cantilever assembly and inserting it into the box Figure 2 ;

[0055] Figure 41 This is a three-dimensional diagram of the installation process of the clamping shaft 1 assembly;

[0056] Figure 42 This is a three-dimensional diagram of the drive connecting rod assembly - assembly process;

[0057] Figure 43 A three-dimensional diagram of the drive slider assembly installation process;

[0058] Figure 44 This is a schematic diagram of the landing distance of the battery pack cart when it is pulled out of the cabinet;

[0059] Figure 45 Forklift - Schematic diagram of the pins extending into the bottom of the battery pack cart after it is raised. DETAILED DESCRIPTION

[0060] The following is a combination of the embodiments of the present invention Figures 1-44The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0061] The present invention discloses a lifting mechanism suitable for a battery pack trolley, which is used to quickly lift the battery pack trolley in a battery box 1.

[0062] like Figures 1-4 As shown, the battery box 1 is mainly a welded box for placing the battery pack cart;

[0063] The battery pack cart 2 includes a battery 2-1, a cart frame 2-2 and rollers 2-3; wherein, the battery 2-1 is a purchased part, each battery pack cart 2 is equipped with 6 batteries, and the cart frame 2-2 is formed by welding of rectangular steel; the rollers 2-3 are turned and rotatably installed in the upper end area on both sides of the cart frame, and are used to realize the pushing and pushing out of the battery pack cart 2 in the battery box 1.

[0064] The lifting mechanism of the present invention includes an extension cantilever assembly 3, a first clamping shaft assembly 4, a second clamping shaft assembly 5, a driving connecting rod assembly 6, a prying rod assembly 7 and a driving slider assembly 8.

[0065] like Figure 5 As shown, the extended cantilever assembly 3 mainly includes a horizontal beam 3-1, a vertical beam 3-2, an oblique beam 3-3, a short vertical beam 3-4, an upper fixing block 3-5, a lower fixing block 3-6, a latch 3-7, a limit stop 3-8, a pry stop shaft 3-9, and a slide block assembly 3-10;

[0066] The crossbeam 3-1, vertical beam 3-2, and oblique beam 3-3 are all formed by cutting rectangular tubes and then welding. The upper fixing block 3-5 and the lower fixing block 3-6 are milled and welded to the tail end of the rectangular tube crossbeam 3-1 and the lower area of ​​the vertical beam 3-2. Similarly, the latch 3-7 is milled and welded to the side of the rectangular tube crossbeam 3-1.

[0067] The prying stop shaft 3-9 is formed by turning from stainless steel round steel and passes through the inclined beam 3-3 in the extended cantilever assembly 3. A stop shaft through hole 3-9-1 is provided at the end of the prying stop shaft 3-9; the prying stop shaft 3-9 passes through one end of the inclined beam 3-3 and a cotter pin 6-4 with a diameter of 3.2 mm passes through the through hole to stop the shaft 3-9-1 to stop and limit the position, and the other end is used to install the prying rod assembly 7; the slide block assembly 3-10 is installed on the inclined beam 3-3 by two sets of bolts, and is formed by milling and drilling of stainless steel plate.

[0068] Two through holes 3-1-1 are arranged on the crossbeam 3-1 for mounting the clamping shaft two-component 5, and a dismounting notch 3-1-2 is arranged at the edge of the through hole 3-1-1 for quick mounting and dismounting of the clamping shaft two-component 5.

[0069] The sliding block assembly 3-10 comprises a sliding block 3-10-1, a cover plate two-component 3-10-2, a protrusion 3-10-3, and a large spring 3-10-4, and is used for guiding and limiting the driving sliding block assembly 8.

[0070] The sliding block 3-10-1 is a T-shaped block structure formed by milling and drilling of a stainless steel plate, and the upper surface of the middle protrusion of the sliding block 3-10-1 is provided with a T-shaped notch 3-10-1-1 for guiding the driving sliding block assembly 8; the bottom of the T-shaped notch 3-10-1-1 is provided with a stepped square hole comprising a protrusion mounting step hole 3-10-1-2 and a protrusion protruding hole 3-10-1-3.

[0071] The cover plate two-component 3-10-2 is cut from a stainless steel plate, and comprises a cover plate two 3-10-2-1 and a positioning stud 3-10-2-2; the positioning stud 3-10-2-2 is fixed on the cover plate two 3-10-2-1.

[0072] The protrusion 3-10-3 is formed by milling and drilling of a stainless steel plate, and is provided with a stepped cylindrical hole 3-10-3-1 and an inclined step 3-10-3-2.

[0073] The upper fixed block 3-5 and the lower fixed block 3-6 limit the extension cantilever assembly 3 in the horizontal direction through a pin shaft, and limit the extension cantilever assembly 3 in the gravity direction through a bolt 3-7.

[0074] The limiting block 3-8 is fixedly installed on the crossbeam 3-1, and needs to be matched with the installation frame of the roller 2-3 for limiting when lifting, and is used for determining the relative position of the battery pack trolley 2 and the extension cantilever assembly 3.

[0075] When the battery pack trolley needs to be installed or dismounted, each trolley 2 needs two sets of extension cantilever assemblies 3, wherein the left and right symmetrical extension cantilever assemblies 3 are arranged on the two sides of each trolley 2. (The battery pack trolley 2 is in contact with the extension cantilever assembly 3, the roller groove surface on the two sides of the battery pack trolley 2 is in line contact with the narrow plane of the crossbeam 3-1, and after the battery pack trolley 2 is pulled out, the front end is stopped by the limiting block 3-8, which limits the continuous forward movement)

[0076] When installing, the sliding block assembly 3-10, the end of the inclined step 3-10-3-2 of the protrusion 3-10-3 is inserted into the protrusion mounting step hole 3-10-1-2 first, and then the inclined step 3-10-3-2 will protrude out of the hole 3-10-1-3, then the large spring 3-10-4 is sleeved into the positioning stud 3-10-2-2 of the plug cover plate two assembly 3-10-2; then it is integrated and covered on the sliding block 3-10-1, and four countersunk head screws are used for fastening; when the driving sliding block assembly 8 moves in the sliding block 3-10-1, the protrusion 3-10-3 is extruded, and the internal spring is contracted; when the extrusion force disappears, the protrusion is popped back out and clamped in the square hole 8-1-1 in the driving sliding block assembly 8, locking the driving sliding block assembly 8.

[0077] The clamping shaft one assembly 4 includes a clamping shaft one 4-1, a stop sheet four 4-2, a plug cover plate 4-3, a telescopic clamping plate 4-4, a spring positioning shaft 4-5, a first spring 4-6, and a lifting wheel 4-7. The components in the clamping shaft one assembly 4 are made of stainless steel material and are completed through turning, milling, cutting and other processes, and are assembled to form an assembly.

[0078] The clamping shaft one 4-1 is a stepped shaft structure, one end of which is used for mounting and lifting the wheel 4-7, and the other end is used for mounting the telescopic clamping plate 4-4. The clamping shaft one 4-1 is formed by turning a stainless steel round bar, and is provided with a first threaded hole 4-1-1, a pin-shaped groove 4-1-2, a positioning shaft round hole 4-1-3, and a second threaded hole 4-1-4; the first threaded hole 4-1-1 is used for fixing the plug cover plate 4-3, the pin-shaped groove 4-1-2 is used for mounting and limiting the telescopic clamping plate 4-4, the positioning shaft round hole 4-1-3 is used for mounting the first spring 4-6, and the second threaded hole 4-1-4 is used for mounting the stop sheet four 4-2.

[0079] The stop sheet four 4-2 is cut from a stainless steel plate and has a disc structure, which is provided with a positioning notch 4-2-1 and a large countersunk head hole 4-2-2; the positioning notch 4-2-1 is used for mounting and positioning, and when installing, the positioning notch 4-2-1 is arranged in parallel with the telescopic clamping plate (universal part) 4-4.

[0080] The plug cover plate 4-3 (universal part) is cut from a stainless steel plate, and then a countersunk head hole is processed by a drilling machine, and a small countersunk head hole 4-3-1 is provided.

[0081] The telescopic clamping plate 4-4 is formed by milling and drilling a stainless steel plate, and is provided with a positioning pin telescopic hole 4-4-1, a stop step 4-4-2, and a sliding inclined surface 4-4-3.

[0082] The spring positioning shaft (universal part) 4-5 is formed by turning a stainless steel round bar.

[0083] Lifting wheel 4-7 is made of stainless steel round steel turning and milling; the lifting wheel 4-7 is provided with a center through hole 4-7-1 and a recess shaft 4-7-2; the recess shaft 4-7-2 is installed to contact and interact with the arc surface of the semicircular arc plate assembly 6-1.

[0084] The assembly 4 of the clamping shaft is first inserted into the triangular slot 4-1-2 in the clamping shaft 4-1 with the sliding inclined surface 4-4-3 of one of the telescopic clamping plates (universal part) 4-4 facing outward, then the spring positioning shaft (universal part) 4-5 is inserted from the other side through the positioning shaft round hole 4-1-3 to reach the telescopic positioning pin hole 4-4-1, then the same operation is performed to insert the small spring (universal part) 4-6 (note that the spring is inserted to the bottom, only to the outside of the telescopic clamping plate (universal part) 4-4, and cannot enter the telescopic positioning pin hole 4-4-1), then use a flathead screwdriver to press against the small spring (universal part) 4-6 to compress it, and the same operation is performed to insert the other telescopic clamping plate (universal part) 4-4, then two countersunk head screws are used to screw and fasten the first threaded hole 4-1-1 through the small countersunk head hole 4-3-1 of the blocking cover plate (universal part) 4-3; finally, the center through hole 4-7-1 of the lifting wheel 4-7 is sleeved into the other end of the clamping shaft 4-1, and three countersunk head screws are used to screw and fasten the second threaded hole 4-1-4 through the large countersunk head hole 4-2-2 of the blocking piece 44-2, and the positioning notch 4-2-1 is arranged in parallel with the telescopic clamping plate (universal part) 4-4.

[0085] As shown in Figure 1 The assembly 4 of the clamping shaft is first inserted into the triangular slot 4-1-2 in the clamping shaft 4-1 with the sliding inclined surface 4-4-3 of one of the telescopic clamping plates (universal part) 4-4 facing outward, then the spring positioning shaft (universal part) 4-5 is inserted from the other side through the positioning shaft round hole 4-1-3 to reach the telescopic positioning pin hole 4-4-1, then the same operation is performed to insert the small spring (universal part) 4-6 (note that the spring is inserted to the bottom, only to the outside of the telescopic clamping plate (universal part) 4-4, and cannot enter the telescopic positioning pin hole 4-4-1), then use a flathead screwdriver to press against the small spring (universal part) 4-6 to compress it, and the same operation is performed to insert the other telescopic clamping plate (universal part) 4-4, then two countersunk head screws are used to screw and fasten the first threaded hole 4-1-1 through the small countersunk head hole 4-3-1 of the blocking cover plate (universal part) 4-3; finally, the center through hole 4-7-1 of the lifting wheel 4-7 is sleeved into the other end of the clamping shaft 4-1, and three countersunk head screws are used to screw and fasten the second threaded hole 4-1-4 through the large countersunk head hole 4-2-2 of the blocking piece 44-2, and the positioning notch 4-2-1 is arranged in parallel with the telescopic clamping plate (universal part) 4-4.

[0086] The assembly 5 of the clamping shaft includes the clamping shaft 5-1, the blocking piece 4-2, the telescopic clamping plate 4-4, the spring positioning shaft 4-5, and the first spring 4-6, which are made of stainless steel through turning and milling, cutting and other processes, and are assembled to form the assembly.

[0087] The clamping shaft 5-1 of the assembly 5 of the clamping shaft is connected to the blocking piece 4-2, the telescopic clamping plate 4-4, the spring positioning shaft 4-5, and the first spring 4-6 in the same way as the clamping shaft 4-1 is connected to the above-mentioned parts, thereby completing the installation of the telescopic clamping plate (universal part) 4-4.

[0088] The other end of the assembly 5 of the clamping shaft is provided with a boss, and the boss is provided with a clamping shaft positioning notch.

[0089] Connection mode with the outside world

[0090] The drive link assembly 6 includes a semicircular arc plate assembly 6-1, a connecting rod assembly 6-2, a rotating short shaft 6-3, and a split pin 6-4.

[0091] The semicircular arc plate assembly 6-1 includes a semicircular arc plate 6-1-1 and a semicircular arc boss hole 6-1-2, wherein the semicircular arc plate 6-1-1 is cut from a stainless steel plate, and the semicircular arc boss hole 6-1-2 is arranged in the middle region of the semicircular arc plate 6-1-1 and is formed by turning a round steel, and the semicircular arc boss hole 6-1-2 is arranged in the middle region of the semicircular arc plate by welding;

[0092] The connecting rod assembly 6-2 is cut from a stainless steel plate; the connecting rod assembly 6-2 includes a connecting rod 6-2-1 and a limiting disc 6-2-2 arranged at the end of the connecting rod 6-2-1; and the connecting rod 6-2-1 is provided with a third threaded hole 6-2-1-1 and a rotating hole 6-2-1-2;

[0093] The rotating short shaft 6-3 is turned from a stainless steel round steel, and is provided with a through small circular hole for mounting a 3.2 mm diameter split pin 6-4.

[0094] The driving connecting rod assembly 6 is first screwed and fastened by means of a countersunk screw through the limiting disc 6-2-2 (two limiting discs are arranged) and the third threaded hole 6-2-1-1 at one end of the connecting rod 6-2-1, and then the rotating short shaft 6-3 is first inserted through the side edge hole of the semicircular arc plate assembly 6-1, and then is inserted into the rotating hole 6-2-1-2, and finally is locked by means of the 3.2 mm diameter split pin 6-4;

[0095] The semicircular arc boss hole 6-1-2 on the semicircular arc plate assembly 6-1 is rotatably connected with the through circular hole 3-1-1 on the cross beam 3-1 through the rotating short shaft 6-3; and the tail end of the rotating short shaft 6-3 is provided with a 3.2 mm diameter split pin 6-4 for limiting.

[0096] The connecting mode of the limiting disc 6-2-2 and the driving sliding block assembly 8 is that after installation, the two groups of left and right symmetrical limiting discs 6-2-2 and the driving sliding block assembly 8 form a mutual wrapping state;

[0097] It is noted that this assembly, one battery car needs four driving connecting rod assemblies 6, and is symmetrically assembled in a “2+2” mode;

[0098] The prying rod assembly 7 includes a stainless steel round pipe 7-1 and an L-shaped support 7-2; wherein the L-shaped support 7-2 is cut from a stainless steel plate, is bent into shape, and is finally welded at one end of the stainless steel round pipe 7-1; and the L-shaped support 7-2 is provided with a sleeve circular hole 7-2-1 for mounting the sleeve circular hole 7-2-1 on the prying stop shaft 3-9 during use.

[0099] The driving sliding block assembly 8 is cut and milled from a stainless steel plate; and includes a driving sliding block 8-1 and a prying contact column 8-2, which are fixedly connected.

[0100] The driving sliding block 8-1 is provided with a square hole 8-1-1, a slope 8-1-2, a welding round hole 8-1-3 and a stop slope 8-1-4; when the square hole 8-1-1 is matched with the protrusion 3-10-3, the driving sliding block 8-1 is limited; the slope 8-1-2 is used for quickly clamping the driving sliding block 8-1 into the T-shaped notch 3-10-1-1 of the sliding block 3-10-1; the welding round hole 8-1-3 is used for fixing the prying contact column 8-2; the stop slope 8-1-4 is contacted with the connecting rod 6-2-1 between the limiting disc 6-2-2 and interacts.

[0101] The mounting steps and working principles of the lifting mechanism suitable for the battery group trolley in use are as follows:

[0102] Firstly, the battery group trolley 2 is unlocked from the inside of the battery box body 1, for example, the related wires, water pipes and the like connected with the battery group trolley are removed, the fastening bolts of the battery group trolley 2 are roughly loosened, the bolts are not completely removed, and after the extension cantilever assembly 3 is installed, the complete removal of the bolts is performed.

[0103] Secondly, the extension cantilever assembly 3 (two sets are needed for a single battery group trolley, which are completely symmetrical in structure) which is welded and fastened by bolts is respectively inserted into the battery box body 1 and combined with the corresponding area inside the battery box body 1 (which can be fixed by using horizontal insertion pins and vertical pins), then the bottom fixing bolts of the battery group trolley 2 are removed, the battery group trolley 2 is pulled out to the front end limiting block 3-8 of the extension cantilever assembly 3, at this time, due to the weight of the battery group trolley 2, the trolley will hover in the front end area of the extension cantilever assembly 3, then the clamping shaft one assembly 4 (four pieces in total for the left and right sides) is respectively inserted, during the insertion process, when the sliding slope 4-4-3 contacts the edge of the through round hole 3-1-1, it is extruded, the compression spring is compressed, the telescopic clamping plate (universal piece) 4-4 is retracted, then no matter how many layers of holes are passed through, the principle is the same, extrusion, contraction, and then pop out; when finally inserted to the bottom, the stop step 4-4-2 is attached to the side of the cross beam 1, and then the clamping shaft one assembly 4 is fixed on the battery group trolley 2; it is noted that no matter how it is inserted, the positioning gap 4-2-1 is finally rotated into the form of gap up and down layout, such a setting is to prevent the clamping shaft one assembly 4 from falling off from the dismounting gap 3-1-2; in addition, the advantage of this structure is that the clamping shaft one assembly 4 can be quickly dismounted, only by rotating the positioning gap 4-2-1 to the horizontal direction, the clamping shaft one assembly 4 can be quickly pulled out, achieving quick insertion, clamping, rotation to the gap and quick dismounting and pulling out.

[0104] Third step, the use of card shaft two components 5 first through the drive link assembly 6 semicircular arc boss hole 6-1-2, and then directly into the extension cantilever assembly 3 through the round hole 3-1-1, to the bottom of the retractable card 4-4 in the spring, stretch card in the side of the beam 1, stop step 4-4-2 just with the side of the beam 1 contact, mutual restraint (the basic principle of the above, the same as the second step of the card shaft one component 4 operation process); the same side after the installation of a group, then install the second group of symmetry, the same operation complete the battery pack car opposite side of the 2 sets of installation.

[0105] Fourth step, pry contact column 8-2 of the drive slider assembly 8 outward downward, and then roughly perpendicular to the downward insertion into the two limit disc 6-2-2 of the drive link assembly 6, with the continuous downward, let it gradually contact to the T type slot 3-10-1-1 in the slide block assembly 3-10, and at this time, the downward insertion has been unable to slide, because the two sides of the semicircular arc plate assembly 6-1 of the drive link assembly 6 with the recess shaft 4-7-2 of the lifting wheel 4-7 contact, the same operation steps, complete the installation of the other side of the battery pack car.

[0106] Fifth step, the end of the pry lever assembly 7 into the round hole 7-2-1, into the pry stop shaft 3-9 in the extension cantilever assembly 3, and then the round tube 7-1 lap to the pry contact column 8-2, using the principle of lever, from one end of the round tube 7-1 to quickly apply downward force, in turn make the drive slider assembly 8 slide down, when the inclined surface 8-1-2 contact to the inclined surface step 3-10-3-2, the protrusion 3-10-3 begins to compress the internal spring, shrink, and when the square hole 8-1-1 of the drive slider assembly 8 is basically located in the area of the protrusion 3-10-3, the protrusion 3-10-3 is popped in the square hole 8-1-1 under the action of the spring, that is, the locking is completed; at the same time in the process of sliding down, the stop inclined surface 8-1-4 and the R angle of the connecting rod 6-2-1 end tangent, make the other end of the connecting rod 6-2-1 rotate drive semicircular arc plate assembly 6-1 inward shrink, with the recess shaft 4-7-2 tangent extrusion; finally the battery pack car is lifted to a certain height, the same operation, the pry lever assembly 7 is inserted into the other side of the battery pack car, complete the operation of the down pressure, drive, lift.

[0107] Sixth step, the battery pack car after lifting, the ground clearance height is more than 50 mm, meet the thickness requirement of 40 mm of the forklift, in turn make the forklift can smoothly lift it and move away.

[0108] The whole operation process, a person can complete, through the fast installation of the relevant accessories, realize the can be installed and can be removed, only with a set of related accessories, save cost and space;

[0109] It should be noted that all directional indications, such as upper, lower, left, right, front, back, and the like, are merely used for convenience of description and are not intended to limit the application to a particular orientation.

[0110] In addition, the terms "first", "second", and the like, used in the description and in the claims of the present application are intended to describe various embodiments and are not intended to be construed as indicating or implying that a particular order of described events or sequence of described actions is required. Accordingly, the terms "first", "second", and the like, are not intended to connote any specific order or sequence, but are merely intended to distinguish between two or more different features, structures, or steps. The terms "first", "second", and the like, are used merely as labels to refer to elements having certain attributes or characteristics, and are not intended to connote any specific order or sequence.

[0111] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixing", and the like, should be understood in a broad sense, for example, "fixing" can be fixed connection, or detachable connection, or integral; "connection" can be mechanical connection, or electrical connection. 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.

Claims

1. A lifting mechanism suitable for a battery pack trolley, used for quickly lifting a battery pack trolley (2) in a battery box (1); characterized in that: The lifting mechanism is arranged on both sides of the battery pack trolley (2), and the lifting mechanism comprises an extended cantilever assembly (3), a first clamping shaft assembly (4), a second clamping shaft assembly (5), a driving connecting rod assembly (6), a prying rod assembly (7) and a driving slider assembly (8); the extended cantilever assembly (3) is fixedly mounted on the battery box (1), the first clamping shaft assembly (4) is fixed on the battery pack trolley (2), the semicircular plate assembly (6-1) in the driving connecting rod assembly (6) is rotatably connected to the extended cantilever assembly (3) through the second clamping shaft assembly (5), and the arc surface of the semicircular plate assembly (6-1) is in contact with the lifting rod assembly in the first clamping shaft assembly (4). The wheel (4-7) contacts; the connecting rod assembly (6-2) in the driving connecting rod assembly (6) contacts the driving slider assembly (8); the driving slider assembly (8) is slidably installed in the slide groove of the slide groove block assembly (3-10) in the extended cantilever assembly (3); the prying rod assembly (7) is sleeved on the extended cantilever assembly (3); the prying rod assembly (7) moves, driving the driving slider assembly (8) to move, and the connecting rod assembly (6-2) in the driving connecting rod assembly (6) moves under the drive of the driving slider assembly (8), so that the arc surface of the semicircular arc plate assembly (6-1) interacts with the clamping shaft assembly (4), thereby realizing the lifting of the trolley.

2. The lifting mechanism for the battery pack cart according to claim 1, characterized in that: The extended cantilever assembly (3) mainly comprises a crossbeam (3-1), a vertical beam (3-2), an oblique beam (3-3), a short vertical beam (3-4), an upper fixed block (3-5), a lower fixed block (3-6), a latch (3-7), a limit block (3-8), a prying stop shaft (3-9), and a chute block assembly (3-10); wherein the crossbeam (3-1), the vertical beam (3-2), and the oblique beam (3-3) are fixedly connected at their ends to form a triangular structure; the two ends of the short vertical beam (3-4) are fixedly connected to the crossbeam (3-1) and the oblique beam (3-3) respectively; the upper fixed block (3-5) and the lower fixed block (3-6) are fixed to the tail end of the rectangular tube crossbeam (3-1) and the vertical beam (3-2); ) lower area; the same latch (3-7) is fixed on the side of the rectangular tube crossbeam (3-1); the extended cantilever assembly (3) is fixedly connected to the battery box (1) through the upper fixed block (3-5), the lower fixed block (3-6) and the same latch (3-7); the limit block (3-8) is fixedly installed on the crossbeam (3-1) and is used to determine the stop position of the extended cantilever assembly (3) after the battery pack trolley (2) is pulled out; the prying stop shaft (3-9) is fixedly installed on the inclined beam (3-3) and is used to sleeve the prying rod assembly (7); the slide block assembly (3-10) is fixedly installed on the inclined beam (3-3) and is used to guide and limit the driving slider assembly (8).

3. The lifting mechanism for the battery pack cart according to claim 2, characterized in that: The crossbeam (3-1) is provided with two through-holes (3-1-1) for installing the second clamping shaft assembly (5); the edges of the through-holes (3-1-1) are provided with detachable notches (3-1-2) for installing the second clamping shaft assembly (5) for quick assembly and disassembly.

4. The lifting mechanism for the battery pack cart according to claim 2, characterized in that: The chute block assembly (3-10) comprises: a chute block (3-10-1), a second blocking cover assembly (3-10-2), a protrusion (3-10-3), and a large spring (3-10-4); the protrusion (3-10-3) is installed in a square hole at the bottom of the chute block (3-10-1), and the large spring (3-10-4) is inserted into a positioning stud (3-10-2-2) of the second blocking cover assembly (3-10-2); and the second blocking cover assembly (3-10-2) is fixedly connected to the chute block (3-10-1).

5. The lifting mechanism for the battery pack cart according to claim 4, characterized in that: The slide block (3-10-1) is a T-shaped block structure; a T-shaped notch (3-10-1-1) is provided on the upper surface of the middle protrusion of the slide block (3-10-1) for driving the guide of the slider assembly (8); a stepped square hole is provided at the bottom of the T-shaped notch (3-10-1-1), and the stepped square hole includes a protrusion mounting step hole (3-10-1-2) and a protrusion emerging hole (3-10-1-3).

6. The lifting mechanism for a battery pack cart according to claim 1, characterized in that: The clamping shaft assembly (4) comprises a clamping shaft (4-1), a blocking plate (4-2), a blocking cover (4-3), a telescopic clamping plate (4-4), a spring positioning shaft (4-5), a first spring (4-6), and a lifting wheel (4-7); a pinion-shaped notch (4-1-2) is provided at one end of the clamping shaft (4-1), and the telescopic clamping plate (4-4) is symmetrically arranged through the spring positioning shaft (4-5) and the first spring (4-6). Installed in the Chinese-character groove (4-1-2), the blocking cover plate (4-3) is fixedly connected to the clamping shaft (4-1) to realize the axial limitation of the telescopic clamping plate (4-4) on the clamping shaft (4-1), the lifting wheel (4-7) is sleeved on the other stepped shaft of the clamping shaft (4-1), and the blocking plate (4-2) is fixedly connected to the clamping shaft (4-1) to realize the axial limitation of the lifting wheel (4-7) on the clamping shaft (4-1).

7. The lifting mechanism for the battery pack cart according to claim 6, characterized in that: The driving connecting rod assembly (6) comprises a semicircular plate assembly (6-1) and a connecting rod assembly (6-2); the semicircular plate assembly (6-1) and the connecting rod assembly (6-2) are hinged, the arc surface of the semicircular plate assembly (6-1) is in contact with and connected to the lifting wheel (4-7), and one end of the connecting rod assembly (6-2) is in contact with and connected to the driving slider assembly (8).

8. The lifting mechanism for a battery pack cart according to claim 2, characterized in that: The prying rod assembly (7) comprises a stainless steel round tube (7-1) and an L-shaped bracket (7-2); wherein the L-shaped bracket (7-2) is fixed to one end of the stainless steel round tube (7-1); and a sleeved circular hole (7-2-1) is provided on the L-shaped bracket (7-2); when used for installation, the circular hole (7-2-1) is sleeved on the prying stop shaft (3-9).

9. The lifting mechanism for the battery pack cart according to claim 7, characterized in that: A driving slider assembly (8) comprises a driving slider (8-1) and a prying contact column (8-2), which are fixedly connected. The driving slider (8-1) is provided with a square hole (8-1-1), an inclined surface (8-1-2), a welding circular hole (8-1-3), and a stop inclined surface (8-1-4). The square hole (8-1-1) is used to limit the driving slider (8-1) when cooperating with a protrusion (3-10-3). The inclined surface (8-1-2) is used to enable the driving slider (8-1) to be quickly inserted into a T-shaped notch (3-10-1-1) of a chute block (3-10-1). The welding circular hole (8-1-3) is used to fixedly install the prying contact column (8-2). The stop inclined surface (8-1-4) contacts and interacts with a connecting rod (6-2-1).

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