Lithium battery electric forklift frame

Abstract

The utility model is suitable for the technical field of forklifts, and provides a lithium battery electric forklift frame which comprises a bottom plate. A connecting frame is connected to the left side of the bottom plate, a handrail is installed at the top of the connecting frame, an electric air cylinder is installed at the upper end of the bottom plate, and a supporting frame is installed at the top of an output shaft of the electric air cylinder. According to the lithium battery electric forklift frame, the bracket is arranged, the lithium battery pack is installed above the bracket, the bracket can be pushed into the lower portion of the connecting frame through sliding of the pulleys at the bottom of the bracket to be connected with the forklift body, the installation and connection mode is labor-saving and convenient, and vertical taking, placing, disassembling and assembling are not needed. The bracket is limited and fixed through the fixing bolts, the mounting mode enables the bracket to be more convenient to disassemble and assemble, the distance between the two sets of fork plates can be adjusted by arranging the connecting mechanism, and therefore materials with different widths can be conveniently forked and conveyed.

Description

Technical Field

[0001] The utility model belongs to the technical field of forklifts, and particularly relates to a frame of a lithium battery electric forklift. Background Art

[0002] For existing lithium battery electric forklifts, generally, the lead-acid battery is directly replaced by a lithium battery on the basis of a lead-acid battery electric forklift. The weight of a lithium battery with the same energy is 50%-60% lighter than that of a lead-acid battery. When directly replacing the lead-acid battery with a lithium battery, a counterweight block needs to be added below the lithium battery to achieve the same weight as the lead-acid battery, which raises the center of gravity of the lithium battery forklift and increases stability.

[0003] Currently, the lithium battery packs of electric forklifts are all installed on the battery racks of the forklifts, and the distance between the battery racks and the ground is relatively large. When the lithium battery pack runs out of power or fails and needs to be replaced, due to the heavy weight of the battery pack, multiple people are required to cooperate to lift the battery pack down with a hook rope and then lift the good battery pack up. This disassembly and assembly method is very troublesome and laborious, and it is easy to bump into the battery pack. Summary of the Utility Model

[0004] The utility model provides a frame of a lithium battery electric forklift, aiming to solve the problem of troublesome disassembly and assembly of the battery pack of the current electric forklift.

[0005] The utility model is realized as follows: A frame of a lithium battery electric forklift includes a bottom plate; a connecting frame is connected to the left side of the bottom plate, a handrail is installed on the top of the connecting frame, an electric cylinder is installed on the upper end of the bottom plate, a support frame is installed on the top of the output shaft of the electric cylinder, a sprocket is rotatably installed on the top of the support frame, a chain is engaged with the outside of the sprocket, one end of the chain is fixed to the top of the connecting frame, the movable end of the chain is connected to a fixing plate, the bottom plate is set to be U-shaped, sliding grooves are formed in the vertical plates on both sides of the bottom plate, and sliding blocks are slidably embedded in the sliding grooves. Both ends of the fixing plate are connected to the sliding blocks, a connecting mechanism is connected to the right side of the fixing plate, a fork plate is installed on the right side of the connecting mechanism, a groove is formed in the lower side of the connecting frame, and a bracket is installed in the groove. A lithium battery pack is installed above the bracket, and a pulley is installed at the bottom of the bracket.

[0006] Preferably, a groove is formed above the bracket, and the lithium battery pack is placed in the groove of the bracket.

[0007] Preferably, the pulley is installed around the bottom of the bracket by using universal wheels, and a vertical telescopic mechanism is installed between the pulley and the bracket.

[0008] Preferably, a fixing bolt is installed on the side of the connecting frame in a threaded manner, a turning handle is connected to the outside of the fixing bolt, a disc-shaped top block is connected to the inside of the fixing bolt, and a card slot adapted to the top block is formed on the side of the bracket.

[0009] Preferably, the connecting mechanism includes a frame, a bidirectional screw, a motor and a screw sleeve. The frame is installed on the front side of the fixing plate. The bidirectional screw is rotatably installed inside the frame. The motor is installed on the side of the frame and the output shaft is connected to the shaft end of the bidirectional screw. There are two groups of screw sleeves symmetrically sleeved outside the bidirectional screw. The fork plates are respectively installed on the sides of the two groups of screw sleeves.

[0010] Preferably, circular slots are equidistantly formed on the side surface of the fork plate.

[0011] Compared with the prior art, the embodiments of the present application mainly have the following beneficial effects:

[0012] By providing a bracket, the lithium battery pack is installed above the bracket, and the bracket can be slid through the pulleys at its bottom to be pushed under the connecting frame and connected to the forklift body. This installation and connection method is labor-saving and convenient, without the need for up and down handling and disassembly, thus improving the practicality of the device. The bracket is limited and fixed by fixing bolts, and this installation method can make the disassembly and assembly of the bracket more convenient. By providing a connecting mechanism, the distance between the two fork plates can be adjusted, so as to facilitate the fork-lifting of materials with different widths. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the front sectional structure schematic diagram of the present utility model;

[0014] Figure 2 is the side view structure schematic diagram of the present utility model;

[0015] Figure 3 is the top sectional structure schematic diagram of the connecting mechanism of the present utility model;

[0016] In the figure: 1, bottom plate; 2, connecting frame; 3, handrail; 4, electric cylinder; 5, support frame; 6, sprocket; 7, chain; 8, fixing plate; 9, connecting mechanism; 91, frame; 92, bidirectional screw; 93, motor; 94, screw sleeve; 10, fork plate; 11, bracket; 12, lithium battery pack; 13, pulley; 14, fixing bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order.

[0018] As used herein, the term "embodiment" means that the specific features, structures, or characteristics described in connection with an embodiment may be included in at least one embodiment of the present application. The phrase may appear in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

[0019] An embodiment of the utility model provides a frame of a lithium battery electric forklift, as Figures 1-3 shown, which includes a bottom plate 1. A connecting frame 2 is connected to the left side of the bottom plate 1. A handrail 3 is installed at the top of the connecting frame 2. An electric cylinder 4 is installed at the upper end of the bottom plate 1. A support frame 5 is installed at the top of the output shaft of the electric cylinder 4. A sprocket 6 is rotatably installed at the top of the support frame 5. A chain 7 is engaged with the outside of the sprocket 6. One end of the chain 7 is fixed to the top of the connecting frame 2. The movable end of the chain 7 is connected to a fixing plate 8. The bottom plate 1 is set in a U shape. Sliding grooves are formed in the vertical plates on both sides of the bottom plate 1, and sliding blocks are slidably embedded in the sliding grooves. Both ends of the fixing plate 8 are connected to the sliding blocks. A connecting mechanism 9 is connected to the right side of the fixing plate 8. A fork plate 10 is installed on the right side of the connecting mechanism 9. A groove is formed on the lower side of the connecting frame 2, and a bracket 11 is installed in the groove. A lithium battery pack 12 is installed above the bracket 11. A pulley 13 is installed at the bottom of the bracket 11. When the device is in use, the electric cylinder 4 is powered by the lithium battery pack 12. The electric cylinder 4 pushes the sprocket 6 upward. At this time, since one end of the chain 7 is fixed, the other end will pull the fixing plate 8 upward. The fixing plate 8 is limited by the sliding blocks, so that the fork plate 10 can be pulled upward, thereby realizing the fork-lifting operation. By providing the bracket 11, the lithium battery pack 12 is installed above the bracket 11, and the bracket 11 can be pushed into the lower part of the connecting frame 2 by sliding through the pulleys 13 at its bottom and connected to the forklift body. This installation and connection method is labor-saving and convenient, and there is no need to carry out up-and-down disassembly and assembly, thereby improving the practicability of the device.

[0020] A groove is formed above the bracket 11, and the lithium battery pack 12 is placed in the groove of the bracket 11. The lithium battery pack 12 is placed and limited through the groove of the bracket 11. This setting can make it more convenient to take and place the lithium battery pack 12 from the surface of the bracket 11 without disassembly and assembly.

[0021] The pulley 13 is installed around the bottom of the bracket 11 by using universal wheels. A vertical telescopic mechanism is installed between the pulley 13 and the bracket 11. By setting the pulley 13 as a universal wheel, the push-pull connection between the bracket 11 and the connecting frame 2 can be made more convenient.

[0022] A fixing bolt 14 is threadedly installed on the side surface of the connecting frame 2. A rotary handle is connected to the outside of the fixing bolt 14, and a disc-shaped top block is connected to the inside of the fixing bolt 14. A clamping groove adapted to the top block is formed on the side surface of the bracket 11. By providing the fixing bolt 14, when the fixing bolt 14 rotates, it advances in a threaded manner with the connecting frame 2, so that the top block can be inserted into the clamping groove on the side surface of the bracket 11, thereby realizing the limit fixation of the bracket 11. This installation method makes the disassembly and assembly of the bracket 11 more convenient.

[0023] The connecting mechanism 9 includes a frame 91, a bidirectional screw 92, a motor 93 and a screw sleeve 94. The frame 91 is installed on the front side of the fixing plate 8. The bidirectional screw 92 is rotatably installed inside the frame 91. The motor 93 is installed on the side of the frame 91 and the output shaft is connected to the shaft end of the bidirectional screw 92. Two groups of screw sleeves 94 are provided and symmetrically sleeved on the outside of the bidirectional screw 92. The fork plates 10 are respectively installed on the side surfaces of the two groups of screw sleeves 94. By providing the connecting mechanism 9, the connecting mechanism 9 drives the bidirectional screw 92 to rotate through the motor 93, and the screw sleeve 94 slides horizontally under the action of the threads on the surface of the bidirectional screw 92. Through this setting, the distance between the two fork plates 10 can be adjusted, so as to facilitate the forking of materials with different widths.

[0024] Circular slots are equidistantly formed on the side surface of the fork plate 10. By forming circular slots on the side surface of the fork plate 10, it is convenient to sleeved the extension plate in the follow-up. The extension plate can be positioned by inserting a pin through the circular slot.

[0025] It should be noted that for the foregoing embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the present invention is not limited by the described action sequence, because according to the present invention, certain steps may be adopted in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0026] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the above-mentioned unit division can be realized in other ways in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point, the shown or discussed coupling or communication connection between each other can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunications or other forms.

[0027] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0028] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the protection scope of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict and without making creative efforts, combine, add or delete the features in the embodiments of the present invention according to the situation or make other adjustments, so as to obtain different technical solutions that are essentially not divorced from the concept of the present invention, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A lithium battery electric forklift frame, characterized in that: The invention comprises a base plate (1): a connecting frame (2) is connected to the left side of the base plate (1), a handrail (3) is installed on the top of the connecting frame (2), an electric cylinder (4) is installed on the upper end of the base plate (1), a support frame (5) is installed on the top of the output shaft of the electric cylinder (4), a sprocket (6) is rotatably installed on the top of the support frame (5), a chain (7) is meshed on the outer side of the sprocket (6), one end of the chain (7) is fixed to the top of the connecting frame (2), the movable end of the chain (7) is connected to a fixed plate (8), and the The bottom plate (1) is set to be U-shaped, and the vertical plates on both sides of the bottom plate (1) are provided with sliding grooves, and sliding blocks are slidably embedded in the sliding grooves. Both ends of the fixed plate (8) are connected to the sliding blocks. The right side of the fixed plate (8) is connected to a connecting mechanism (9), and the right side of the connecting mechanism (9) is installed with a fork plate (10). The lower side of the connecting frame (2) is provided with a groove, and a bracket (11) is installed in the groove. A lithium battery pack (12) is installed above the bracket (11), and a pulley (13) is installed at the bottom of the bracket (11).

2. A lithium battery electric forklift frame as claimed in claim 1, characterized in that: A groove is provided on the upper side of the bracket (11), and the lithium battery pack (12) is placed in the groove of the bracket (11).

3. A lithium battery electric forklift frame as claimed in claim 2, characterized in that: The pulley (13) is installed around the bottom of the bracket (11) using a universal wheel, and a vertical telescopic mechanism is installed between the pulley (13) and the bracket (11).

4. A lithium battery electric forklift frame as claimed in claim 1, characterized in that: A fixing bolt (14) is threadedly mounted on the side of the connecting frame (2), a turning handle is connected to the outside of the fixing bolt (14), a disc-shaped top block is connected to the inside of the fixing bolt (14), and a slot matching the top block is provided on the side of the bracket (11).

5. A lithium battery electric forklift frame as claimed in claim 1, characterized in that: The connecting mechanism (9) comprises a frame (91), a bidirectional screw (92), a motor (93) and a screw sleeve (94); the frame (91) is mounted on the front side of the fixing plate (8); the bidirectional screw (92) is rotatably mounted on the inner side of the frame (91); the motor (93) is mounted on the side of the frame (91) and the output shaft is connected to the axial end of the bidirectional screw (92); the screw sleeve (94) is provided in two groups and is symmetrically sleeved on the outer side of the bidirectional screw (92); the fork plate (10) is respectively mounted on the side surfaces of the two groups of screw sleeves (94).

6. A lithium battery electric forklift frame as claimed in claim 1, characterized in that: Circular slots are equidistantly provided on the side of the fork plate (10).

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