Electric forklift capable of adjusting distance between front forks

Abstract

The utility model relates to the technical field of electric forklifts, in particular to an electric forklift capable of adjusting the distance between front forks, which comprises a fixing frame and a mounting frame, a front fork distance adjusting device is arranged on the inner surface of the mounting frame, the front fork distance adjusting device comprises a motor and a connecting plate, and the output end of the motor is rotatably connected with a bidirectional screw rod. The outer surface of the bidirectional lead screw is in threaded connection with two threaded sleeves, fork claws are fixedly installed on the lower surfaces of the threaded sleeves, T-shaped sliding blocks are fixedly installed on the side surfaces of the fork claws, T-shaped sliding grooves are formed in the inner surfaces of the connecting plates, two symmetrically-arranged strip-shaped sliding grooves are formed in the side walls of the bottom ends of the fork claws, and extension arms are slidably connected to the inner surfaces of the strip-shaped sliding grooves. The forklift has the beneficial effects that the universality of the forklift is improved, the time consumed for replacing forklifts of different specifications to adjust goods is shortened by quickly adjusting the length of the fork claws, and the loading and unloading efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of electric forklifts, specifically an electric forklift with adjustable fork spacing. Background Technology

[0002] Electric forklifts use batteries as their power source to drive the drive motor and hydraulic system motor, thereby enabling driving and loading / unloading operations.

[0003] Existing electric forklifts typically adjust the fork spacing manually, which is convenient to operate and can meet the transportation needs of different types of materials.

[0004] However, manual adjustment is inefficient, and the lack of a fixing mechanism for the forks after adjustment affects work efficiency. During manual adjustment, the operator needs to be close to the front of the forklift. If the operation is improper or the goods are unstable, accidental injury can easily occur. In addition, when transporting some special goods, the length of the forks cannot be adjusted according to the length requirements of the goods, which reduces applicability. Utility Model Content

[0005] The purpose of this utility model is to provide an electric forklift with adjustable fork spacing to solve the problems mentioned in the background art, such as low efficiency of manual adjustment, lack of fixing mechanism for the fork after adjustment, which affects work efficiency, the need for the operator to be close to the front of the forklift during manual adjustment, and the risk of accidental injury if the operation is improper or the goods are unstable. In addition, when transporting some special goods, the length of the fork cannot be adjusted according to the length requirements of the goods, which reduces the applicability.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an electric forklift with adjustable fork spacing, comprising: a fixed frame and a mounting frame, the inner surface of the mounting frame being provided with a fork spacing adjustment device, the fork spacing adjustment device comprising: a motor and a connecting plate, the output end of the motor being rotatably connected to a two-way lead screw, the outer surface of the two-way lead screw being threadedly connected to two threaded sleeves, the lower surface of the threaded sleeves being fixedly mounted with fork pawls, the side surface of the fork pawls being fixedly mounted with T-shaped sliders, and the inner surface of the connecting plate being provided with a T-shaped groove;

[0007] The bottom sidewall of the fork has two symmetrically arranged strip grooves. An extension arm is slidably connected to the inner surface of the strip groove. A strip slider is fixedly installed on the inner side of the extension arm. A groove is formed on the inner surface of the extension arm.

[0008] Preferably, a movable frame is slidably connected to the inner side of the fixed frame, the side surface of the movable frame is fixedly connected to the mounting frame, and a lifting device is fixedly installed on the bottom surface of the fixed frame, with the output end of the lifting device fixedly connected to the movable frame.

[0009] Preferably, the fork pawl slides on the inner surface of the T-shaped groove via a threaded sleeve and a threaded connection between the fork and the bidirectional lead screw, and the T-shaped slider is slidably connected to the T-shaped groove.

[0010] Preferably, the inner surface of the fork is threaded with a first fastening bolt, and the T-shaped slider limits the fork by the first fastening bolt.

[0011] Preferably, the extension arm is slidably connected to the bottom sidewall of the fork through a sliding engagement between a strip slider and a strip groove.

[0012] Preferably, the side wall of the extension arm is threaded with a second fastening bolt, and the strip slider limits the sliding of the extension arm through the second fastening bolt.

[0013] Preferably, a reinforcing rib is fixedly installed on the side surface of the connecting plate, and two symmetrically arranged buffer blocks are fixedly installed on the top side surface of the reinforcing rib.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model proposes an electric forklift with adjustable front fork spacing.

[0016] 1. By setting up a fork spacing adjustment device, when adjusting the fork spacing of the fork pawls, the first fastening bolt connected to the threaded connection on the side surface of the fork pawl is loosened. The drive motor drives the bidirectional lead screw to rotate, which in turn causes the threaded sleeve to move the two fork pawls in a direction that is closer to or further away from each other. The T-shaped slider fixedly installed on the side surface of the fork pawl slides in the T-shaped groove in the connecting plate, which prevents the fork pawls from rotating when the bidirectional lead screw is rotated. It also plays a guiding role. When the fork pawls are adjusted to the appropriate position, the motor drive is stopped and the first fastening bolt is tightened to prevent the adjusted fork pawls from loosening or deviating due to external interference.

[0017] 2. When transporting special goods that require adjustment of the fork length, the extension arm can be slid through the strip-shaped slider in the groove within the groove on the side wall of the bottom of the fork by loosening the second fastening bolt. Once adjusted to the appropriate position according to the length requirements of the goods, the second fastening bolt can be tightened. This allows for adjustment of the fork length according to the length requirements of the goods, improving the versatility and applicability of the forklift. By quickly adjusting the fork length, the time spent adjusting goods due to changing to different specifications of forklifts is reduced, thus improving loading and unloading efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the front fork spacing adjustment device of this utility model;

[0020] Figure 3 For the present utility model Figure 2 Enlarged view of a portion of point A in the middle;

[0021] Figure 4 This is a schematic diagram of the mounting structure of the fork claw part of this utility model;

[0022] Figure 5 This is a schematic diagram of the extension arm mounting structure of this utility model.

[0023] In the diagram: 1. Fixed frame; 2. Movable frame; 3. Lifting device; 4. Mounting frame; 5. Reinforcing rib plate; 6. Motor; 7. Two-way lead screw; 8. Threaded sleeve; 9. Buffer block; 10. Connecting plate; 11. T-shaped slide rail; 12. Fork claw; 13. T-shaped slider; 14. First fastening bolt; 15. Strip slide rail; 16. Extension arm; 17. Groove; 18. Strip slider; 19. Second fastening bolt. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1 to 5 This utility model provides a technical solution: an electric forklift with adjustable front fork spacing;

[0026] Example 1:

[0027] To adjust the fork spacing of the fork pawl 12, a bidirectional lead screw 7 is rotatably connected to the output end of the motor 6. Two threaded sleeves 8 are threadedly connected to the outer surface of the bidirectional lead screw 7. The fork pawl 12 is fixedly mounted on the lower surface of the threaded sleeves 8, and a T-shaped slider 13 is fixedly mounted on the side surface of the fork pawl 12. A T-shaped groove 11 is formed on the inner surface of the connecting plate 10. The fork pawl 12 slides on the inner surface of the T-shaped groove 11 through the threaded connection between the threaded sleeves 8 and the bidirectional lead screw 7. The T-shaped slider 13 is slidably connected to the T-shaped groove 11. A first fastening bolt 14 is threadedly connected to the inner surface of the fork pawl 12. 3. The fork 12 is limited by the first fastening bolt 14. The first fastening bolt connected to the threaded side surface of the fork 12 is loosened. The drive motor 6 drives the bidirectional lead screw 7 to rotate, which in turn causes the threaded sleeve 8 to move the two fork 12 toward each other or away from each other. The T-shaped slider 13 fixedly installed on the side surface of the fork 12 slides in the T-shaped groove 11 in the connecting plate 10, which prevents the fork 12 from rotating when it is adjusted by the bidirectional lead screw 7. It also plays a guiding role. When the fork 12 is adjusted to the appropriate position, the drive of the motor 6 is stopped and the first fastening bolt 14 is locked.

[0028] Example 2:

[0029] Based on Embodiment 1, in order to adjust the length of the fork 12, two symmetrically arranged strip grooves 15 are provided on the bottom side wall of the fork 12. An extension arm 16 is slidably connected to the inner surface of the strip groove 15. A strip slider 18 is fixedly installed on the inner side of the extension arm 16. A groove 17 is provided on the inner surface of the extension arm 16. The extension arm 16 is slidably connected to the bottom side wall of the fork 12 through the sliding cooperation of the strip slider 18 and the strip groove 15. A second fastening bolt 19 is threadedly connected to the side wall of the extension arm 16. The strip slider 18 limits the sliding of the extension arm 16 through the second fastening bolt 19. By loosening the second fastening bolt 19, the extension arm 16 slides in the strip groove 15 provided on the bottom side wall of the fork 12 through the strip slider 18 in the groove 17. When it is adjusted to a suitable position according to the length requirements of the goods, the second fastening bolt 19 is locked, so that the length of the fork 12 can be adjusted according to the length requirements of the goods.

[0030] Working principle: In actual use, the drive motor 6 drives the bidirectional lead screw 7 to rotate, which in turn causes the threaded sleeve 8 to move the two forks 12 toward each other or away from each other. The T-shaped slider 13, fixedly mounted on the side surface of the forks 12, slides within the T-shaped groove 11 in the connecting plate 10, preventing the forks 12 from rotating along with the bidirectional lead screw 7 during adjustment. This also serves as a guide. When the forks 12 are adjusted to the appropriate position, the drive of the motor 6 is stopped, and the first fastening bolt 14 is tightened to prevent the adjusted forks 12 from rotating further. Without being disturbed by external forces, the extension arm 16 can be slid within the strip-shaped slide groove 15 on the bottom side wall of the fork 12 by loosening the second fastening bolt 19 and sliding the strip-shaped slider 18 in the groove 17. When adjusted to the appropriate position according to the length requirements of the goods, the second fastening bolt 19 can be tightened. This allows the length of the fork 12 to be adjusted according to the length requirements of the goods, improving the versatility and applicability of the forklift. By quickly adjusting the length of the fork 12, the time spent adjusting the goods due to changing to different specifications of forklifts is reduced, thus improving loading and unloading efficiency.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electric fork truck with adjustable fork spacing, characterized by: The utility model relates to a front fork distance adjusting device of a fixed frame (1) and mounting frame (4), the inner surface of mounting frame (4) is equipped with front fork distance adjusting device, and the front fork distance adjusting device includes: motor (6) and connecting plate (10), the output of motor (6) is rotatably connected with bidirectional screw rod (7), and the outer surface of bidirectional screw rod (7) is threadedly connected with two threaded sleeves (8), and the lower surface of threaded sleeve (8) is fixedly installed with prong jaw (12), and the side surface of prong jaw (12) is fixedly installed with T-shaped sliding block (13), and the inner surface of connecting plate (10) is provided with T-shaped sliding groove (11). The bottom end side wall of prong jaw (12) is provided with two symmetrically arranged strip-shaped sliding grooves (15), the inner surface of strip-shaped sliding groove (15) is slidably connected with extension arm (16), the inner side of extension arm (16) is fixedly installed with strip-shaped sliding block (18), and the inner surface of extension arm (16) is provided with recess (17). The inner side of fixed frame (1) is slidably connected with movable frame (2), the side surface of movable frame (2) is fixedly connected with mounting frame (4), and the bottom surface of fixed frame (1) is fixedly installed with lifting device (3), and the output of lifting device (3) is fixedly connected with movable frame (2).

2. The electric fork truck with adjustable fork spacing of claim 1, wherein: The prong jaw (12) is slidably connected with the inner surface of the T-shaped sliding groove (11) through the threaded connection of the threaded sleeve (8) and the bidirectional screw rod (7), and the T-shaped sliding block (13) is slidably connected with the T-shaped sliding groove (11).

3. The electric fork truck with adjustable fork spacing of claim 1, wherein: The inner surface of the prong jaw (12) is threadedly connected with the first fastening bolt (14), and the T-shaped sliding block (13) limits the prong jaw (12) through the first fastening bolt (14).

4. The electric fork truck with adjustable fork spacing of claim 1, wherein: The extension arm (16) is slidably connected with the bottom end side wall of the prong jaw (12) through the sliding cooperation of the strip-shaped sliding block (18) and the strip-shaped sliding groove (15).

5. The electric fork truck with adjustable front fork spacing of claim 1, wherein: The side wall of the extension arm (16) is threadedly connected with the second fastening bolt (19), and the strip-shaped sliding block (18) limits the sliding of the extension arm (16) through the second fastening bolt (19).

6. The electric fork truck with adjustable front fork spacing of claim 1, wherein: The side surface of the connecting plate (10) is fixedly installed with the reinforcing rib plate (5), and the top end side surface of the reinforcing rib plate (5) is fixedly installed with two symmetrically arranged buffer blocks (9).

7. The electric fork truck with adjustable front fork spacing of claim 1, wherein: ​

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