Large-tonnage electric fork truck

Abstract

The application relates to the technical field of electric forklifts, in particular to a large-tonnage electric forklift which comprises an electric forklift body, a cargo fork slidingly matched with the electric forklift body along a vertical direction and a driver one arranged on the electric forklift body and used for driving the cargo fork to lift, a tilting-preventing device is arranged on the electric forklift body, the tilting-preventing device comprises a sliding frame arranged on the electric forklift body, a pressing plate rotationally matched with the sliding frame and used for pressing the top end of goods on the cargo fork and a pressing mechanism arranged on the sliding frame, the pressing mechanism is used for driving the pressing plate to rotate, and the pressing plate is pressed against the goods when rotating to a horizontal position and located at the top end of the goods. Through arrangement of the tilting-preventing device, the top end of the goods can be pressed by the pressing plate; the large-tonnage electric forklift can reduce the phenomenon that the goods easily fall off the cargo fork, and the convenience of use of the electric forklift is improved.

Description

Technical Field

[0001] This application relates to the technical field of water dispensers, and in particular to a large-tonnage electric forklift. Background Technology

[0002] Forklifts are self-propelled loading and unloading conveying machines equipped with forks and lifting devices. They are various wheeled handling vehicles used for loading, unloading, stacking, and short-distance transportation of palletized goods. Most forklifts use hydraulic mechanical transmission and consist of a power unit, frame, working mechanism, traveling mechanism, and steering mechanism. A counterweight is often installed at the rear of the forklift. Forklifts are characterized by their maneuverability, adaptability, and high efficiency. Based on the fork installation position, they are classified as front-loading forklifts and side-loading forklifts. Their structural characteristics and working performance are indicated by technical parameters such as rated lifting capacity, load center distance, and mast tilt angle. They are generally classified into internal combustion forklifts and electric forklifts, and are widely used in various sectors of the national economy, including railway stations, ports, airports, factories, and warehouses. Large-tonnage electric forklifts are the most common type.

[0003] Currently, large-tonnage electric forklifts require lifting the goods with their forks and then transferring them during use.

[0004] The existing technology has the drawback that during the transfer process of electric forklifts, the goods are prone to tilting on the forks and falling off the forks, which makes the electric forklifts inconvenient to use. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention proposes a large-tonnage electric forklift. This large-tonnage electric forklift can reduce the likelihood of goods falling off the forks, thereby improving the ease of use of the electric forklift.

[0006] This application provides a high-tonnage electric forklift, which adopts the following technical solution:

[0007] A high-tonnage electric forklift includes an electric forklift body, forks slidably mounted on the electric forklift body in a vertical direction, and a drive unit mounted on the electric forklift body for raising and lowering the forks. The electric forklift body is equipped with an anti-tipping device, which includes a sliding frame mounted on the electric forklift body, a pressing plate rotatably mounted on the sliding frame for pressing the top of the cargo on the forks, and a pressing mechanism mounted on the sliding frame. The pressing mechanism drives the pressing plate to rotate, and when the pressing plate rotates to a horizontal position and is located at the top of the cargo, it presses the cargo.

[0008] By adopting the above technical solution and setting the anti-tipping device, after the goods are placed on the forks, the adjustment component and drive component are activated, which can drive the compression plate to rotate. The compression plate can then press the top of the goods firmly, reducing the phenomenon that the goods are easy to fall off the forks, thereby improving the convenience of using electric forklifts.

[0009] Optionally, the extrusion mechanism includes an adjustment component for driving the extrusion plate to rotate and a drive component disposed on the sliding frame for driving the adjustment component to move.

[0010] Optionally, the adjustment assembly includes a sliding block that is slidably fitted on the sliding frame along the vertical direction and a rotating rod for driving the extrusion plate to rotate. One end of the rotating rod is rotatably fitted with the sliding block, and the other end is rotatably fitted with the extrusion plate.

[0011] Optionally, the drive assembly includes a screw threaded into the sliding block and a drive component for rotating the screw, the drive component being mounted on the sliding frame.

[0012] Optionally, the electric forklift body is provided with a lifting device, which includes a sliding plate for driving the sliding frame to slide in the vertical direction and a second driver for driving the sliding plate to lift. One end of the second driver is mounted on the electric forklift body, and the other end of the second driver is mounted on the sliding plate.

[0013] By adopting the above technical solution, and through the setting of the lifting device, the second driver can be activated to drive the sliding plate to rise and fall, thereby adjusting the position of the sliding frame and adjusting the height between the pressing plate and the forks. This makes it easier to press goods of different heights, thus expanding the application range of the electric forklift.

[0014] Optionally, the electric forklift body is provided with a rotating device, which includes a rotating component disposed on the electric forklift body for driving the goods to rotate and a power component for driving the rotating component to move.

[0015] By adopting the above technical solution and configuring the rotating device, when unloading goods, activating the power component drives the rotating component to move, thereby causing the goods to rotate. This causes the end of the goods closest to the electric forklift body to rotate upwards, tilting the goods and allowing them to slide slowly, thus achieving automatic unloading.

[0016] Optionally, the rotating assembly includes a rotating plate for rotating the goods, a rotating rod one for rotating the rotating plate, a rotating rod two for rotating the rotating rod one, a support member for supporting the end of the rotating plate near the electric forklift body, and a mounting plate disposed on the electric forklift body.

[0017] Optionally, the power assembly includes a sliding plate that is slidably fitted onto the mounting plate along the length of the electric forklift body and a driver four for driving the sliding plate to slide, with one end of the rotating rod two rotatably fitted onto the sliding plate.

[0018] Optionally, the support member is a driver three, one end of which is rotatably engaged with the rotating plate, and the other end is rotatably engaged with the sliding plate.

[0019] Optionally, the electric forklift body is provided with a slide rail, the slide rail including a fixed part mounted on the electric forklift body and a rotating part rotatably engaged with the fixed part, and a slider slidably engaged with the slide rail is provided on the mounting plate.

[0020] By adopting the above technical solution, the sliding rail and slider are designed to allow the rotating device to slide within the sliding rail, thereby making way for the forks when using the rotating device, facilitating the use of the forks. At the same time, the fixed part and the rotating part are designed to allow the rotating part to be folded, thereby allowing the rotating device to be folded, which reduces the space occupied by the rotating device.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. With the anti-tipping device, after the goods are placed on the forks, the adjustment and drive components are activated, which can drive the pressure plate to rotate. The pressure plate can then press the top of the goods firmly, reducing the likelihood of the goods falling off the forks and thus improving the ease of use of the electric forklift.

[0023] 2. By setting up the lifting device and starting the second driver, the sliding plate can be raised and lowered, thereby adjusting the position of the sliding frame and adjusting the height between the pressing plate and the forks. This makes it easier to press goods of different heights, thus expanding the application range of the electric forklift.

[0024] 3. By setting up a rotating device, when unloading goods, activating the power unit can drive the rotating component to move, thereby causing the goods to rotate. This causes the end of the goods closest to the electric forklift body to rotate upward, tilting the goods and allowing them to slide slowly, thus achieving automatic unloading of the goods.

[0025] 4. By setting up the slide rail and slider, the rotating device can slide within the slide rail, thereby allowing the rotating device to make way for the forks when they are used, making it convenient for the forks to use. At the same time, by setting up the fixed part and the rotating part, the rotating part can be folded, thereby achieving the folding of the rotating device, so that the rotating device occupies less space. Attached Figure Description

[0026] Figure 1 This is a partial sectional view of this application;

[0027] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0028] Figure 3 yes Figure 1 A magnified view of a section at point B in the middle;

[0029] Figure 4 yes Figure 1 A magnified view of a section at point C.

[0030] Explanation of reference numerals in the attached drawings: 1. Electric forklift body; 2. Forks; 3. Driver 1; 4. Anti-tipping device; 41. Sliding frame; 42. Pressing plate; 43. Adjustment assembly; 431. Sliding block; 432. Rotating rod; 44. Drive assembly; 441. Screw; 442. Drive component; 5. Lifting device; 51. Sliding plate; 52. Driver 2; 6. Rotating device; 61. Rotating assembly; 611. Rotating plate; 612. Rotating rod 1; 613. Rotating rod 2; 614. Support component; 615. Mounting plate; 62. Power assembly; 621. Sliding plate; 622. Driver 4; 7. Slide rail; 71. Fixed part; 72. Rotating part. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0032] This application discloses a large-tonnage electric forklift. (Refer to...) Figure 1 and Figure 2 The system includes an electric forklift body 1, forks 2 that slide vertically onto the electric forklift body 1, and a driver 3 mounted on the electric forklift body 1 for raising and lowering the forks 2. The forks 2 have an "L" shape and are spaced apart along the width of the electric forklift body 1. One end of each fork 2 facing away from the electric forklift body 1 has an inclined surface. A fixing rod connects the two forks 2. The driver 3 can be a hydraulic cylinder, with its cylinder body fixed to the electric forklift body 1 and its piston rod fixed to the fixing rod. When goods need to be transferred, the electric forklift body 1 is moved to the location of the goods to be transferred. The forks 2 support the goods, and then the driver 3 is activated, raising the forks 2 and thus the goods. The goods are then transferred via the electric forklift body 1.

[0033] Reference Figure 1 and Figure 2In order to limit the goods on the forks 2 and prevent the goods from tipping over, an anti-tipping device 4 is provided on the electric forklift body 1. The anti-tipping device 4 includes a sliding frame 41 on the electric forklift body 1, a pressing plate 42 rotatably fitted on the sliding frame 41 and used to press the top of the goods on the forks 2, and a pressing mechanism on the sliding frame 41. The sliding frame 41 is slidably fitted on the electric forklift body 1 in the vertical direction and has a U-shaped structure.

[0034] Reference Figure 1 and Figure 2 The extrusion mechanism is used to drive the extrusion plate 42 to rotate. When the extrusion plate 42 rotates to a horizontal position and is located at the top of the goods, it compresses the goods. The extrusion mechanism includes an adjustment component 43 for driving the extrusion plate 42 to rotate and a drive component 44 set on the sliding frame 41 for driving the adjustment component 43 to move. The adjustment component 43 includes a sliding block 431 that slides vertically on the sliding frame 41 and a rotating rod 432 for driving the extrusion plate 42 to rotate. The sliding frame 41 has a sliding groove, which is a "T" shaped groove. The sliding block 431 slides in the sliding groove and is a "T" shaped block. Both ends of the rotating rod 432 are provided with rotating seats. One end of the rotating rod 432 is rotatably engaged with the sliding block 431 through the rotating seat, and the other end is rotatably engaged with the extrusion plate 42 through the rotating seat.

[0035] Reference Figure 1 and Figure 2 The drive assembly 44 includes a screw 441 threaded into the sliding block 431 and a drive member 442 for driving the screw 441 to rotate. The drive member 442 is fixedly installed on the sliding frame 41. The drive member 442 can be directly an electric motor. The output shaft of the drive member 442 is fixedly connected to the screw 441, and the sliding frame 41 supports the rotation of the screw 441.

[0036] Reference Figure 1 and Figure 2 The electric forklift body 1 is equipped with a lifting device 5, which is used to adjust the height of the sliding frame 41. The lifting device 5 includes a sliding plate 51 for sliding the sliding frame 41 vertically and a second driver 52 for raising and lowering the sliding plate 51. The second driver 52 can be a hydraulic cylinder. One end of the second driver 52 is fixedly installed on the electric forklift body 1, and the other end is fixedly installed on the sliding plate 51. The sliding plate 51 is fixedly connected to the side of the sliding frame 41. Activating the second driver 52 can raise and lower the sliding plate 51, thereby adjusting the height between the pressing plate 42 and the forks 2. This facilitates the pressing of goods of different heights, making the electric forklift body 1 more versatile.

[0037] Reference Figure 1 and Figure 2 When it is necessary to press the top of the goods firmly and not to rotate the goods for automatic unloading, first start the drive unit 442, drive the screw 441 to rotate, drive the sliding block 431 to slide along the screw 441, drive the rotating rod 432 to rotate, and then drive the pressing plate 42 to rotate. When the pressing plate 42 rotates to the horizontal position, turn off the drive unit 442, then start the second drive unit 52, drive the sliding plate 51 to descend, and then drive the sliding frame 41 to descend, and drive the pressing plate 42 to press and lock the top of the goods. By pressing the top of the goods with the pressing plate 42, the phenomenon of goods easily falling off the forks 2 can be reduced, thereby improving the ease of use of the electric forklift body 1.

[0038] Reference Figure 1 and Figure 2 In order to rotate the goods so that they can slide down automatically after the transfer is completed, thus realizing automatic unloading of the goods, a rotating device 6 is provided on the electric forklift body 1. The rotating device 6 includes a rotating component 61 installed on the electric forklift body 1 for rotating the goods and a power component 62 for driving the rotating component 61.

[0039] Reference Figures 1-3 The rotating assembly 61 includes a rotating plate 611 for rotating the goods, a rotating rod 612 for rotating the rotating plate 611, a rotating rod 613 for rotating the rotating rod 612, a support member 614 for supporting one end of the rotating plate 611 near the electric forklift body 1, and a mounting plate 615 disposed on the electric forklift body 1. One end of the rotating rod 612 is rotatably engaged with the mounting plate 615, and the other end of the rotating rod 612 abuts against the lower surface of the rotating plate 611. The rotating plate 611 is a rectangular plate, and two rotating plates 611 are disposed along the width direction of the electric forklift body 1, and the two rotating plates 611 are located between the two forks 2.

[0040] Reference Figures 1-3 One end of the rotating rod 613 is rotatably engaged with one end of the rotating rod 612. The power assembly 62 includes a sliding plate 621 slidably engaged on a mounting plate 615 along the length of the electric forklift body 1, and a driver 622 for driving the sliding plate 621 to slide. The mounting plate 615 has a T-shaped groove, and the sliding plate 621 is slidably engaged within the groove. One end of the rotating rod 613 is rotatably engaged with the sliding plate 621. The support member 614 is the driver 614, which can be a hydraulic cylinder. One end of the support member 614 is rotatably engaged with the rotating plate 611, and the other end is rotatably engaged with the sliding plate 621.

[0041] Reference Figure 1 and Figure 4The electric forklift body 1 is fixedly provided with a slide rail 7. The slide rail 7 includes a fixed part 71 fixedly installed on the electric forklift body 1 and a rotating part 72 rotatably engaged with the fixed part 71. The fixed part 71 has a U-shaped structure and a clearance groove for the forks 2 to pass through, thereby realizing the clearance of the rotating device 6 for the forks 2 when they are used, making it convenient for the forks 2 to be used.

[0042] Reference Figures 1-4 A rotating seat is installed on the rotating part 72. The rotating part 72 is rotatably engaged with the fixed part 71 through the rotating seat. A limiting plate for rotating the rotating part 72 downward is installed at the bottom of the fixed part 71. An electric motor for driving the rotating part 72 to rotate automatically can be fixedly installed on the fixed part 71. A slider that slides on the slide rail 7 is fixedly installed on the mounting plate 615. The slider is a "T" shaped block. The length of the slider is greater than the length of the clearance groove, so that the slider can slide in the slide rail 7. A hydraulic cylinder for driving the slider to slide in the slide rail 7 can be fixedly installed on the rotating part 72. By setting the rotating seat, the rotating part 72 can be folded, thereby realizing the folding of the rotating device 6, so that the rotating device occupies less space.

[0043] Reference Figures 1-4 In the initial state, the mounting plate 615 slides into the rotating part 72, and the rotating part 72 rotates to a vertical position. The electric forklift body 1 has a threaded bolt (not shown in the figure) for pressing and locking the rotating part 72. Rotating the bolt toward the mounting plate can press and lock the mounting plate 615, thereby allowing the mounting plate 615 to be in a vertical position. Through the setting of the fixing part 71 and the rotating part 72, the rotating part 72 can be folded, thereby folding the rotating device 6, so that the rotating device 6 occupies less space.

[0044] Reference Figures 1-4 After the goods are placed on the forks 2, the forks 2 are raised by the driver 3, and the bolts no longer press and tighten against the mounting plate 615. Then, the rotating part 72 is rotated, so that the rotating part 72 rotates from the vertical position to the horizontal position (its state is as follows). Figure 1 As shown), at this time, the forks 2 are above the rotating plate 611. Then, the mounting plate 615 is slid from the rotating part 72 into the fixed part 71. After the mounting plate 615 is slid and adjusted, the driver 3 drives the forks 2 to descend, which in turn drives the cargo to descend. When the cargo abuts the upper surface of the rotating plate 611, the forks 2 are now below the mounting plate 615 (its state is as shown). Figure 1As shown), the goods are pressed by the extrusion plate 42. When the goods need to be unloaded, the driver 622 is activated, which drives the sliding plate 621 to slide, which drives the rotating rod 613 and the rotating rod 612 to rotate. At the same time, the support 614 is activated, which drives the rotating plate 611 to rotate upward at one end near the electric forklift body 1 and downward at the other end. At the same time, the driver 442 is activated, which drives the screw 441 to rotate, which drives the sliding block 431 to slide along the screw 441, which drives the rotating rod 432 to rotate, which in turn drives the extrusion plate 42 to rotate. This makes the extrusion plate 42 and the rotating plate 611 rotate synchronously, which drives the goods to rotate and tilt the goods. When the extrusion plate 42 rotates and no longer presses the goods, the goods can slide along the inclined surface of the rotating plate 611 away from the end of the electric forklift body 1, so that the goods can be automatically unloaded.

[0045] The implementation principle of a large-tonnage electric forklift according to this application is as follows: When goods need to be transferred, the electric forklift body 1 is moved to the location of the goods to be transferred. The goods are supported by the forks 2. Then, the driver 3 is started, which drives the forks 2 to rise, thereby driving the goods to rise. The bolts no longer squeeze and lock the mounting plate 615 when the driver 3 drives the forks 2 to rise. Then, the rotating part 72 is rotated, so that the rotating part 72 rotates from the vertical position to the horizontal position. The forks 2 are located above the rotating plate 611. Then, the mounting plate 615 is slid into the fixed part 71. After the adjustment is completed, the driver 3 drives the forks 2 to fall, which drives the goods to fall. When the goods come into contact with the upper surface of the rotating plate 611, the rotating plate 611 supports the goods. At this time, the forks 2 are located below the mounting plate 615.

[0046] Next, start the drive unit 442, which drives the screw 441 to rotate, causing the sliding block 431 to slide along the screw 441, which in turn drives the rotating rod 432 to rotate, and then drives the extrusion plate 42 to rotate. When the extrusion plate 42 rotates to the horizontal position, turn off the drive unit 442. Then start the second driver 52, which drives the sliding plate 51 to descend, which in turn drives the sliding frame 41 to descend, and drives the extrusion plate 42 to press and lock the top of the goods.

[0047] When unloading is required, the driver 622 is activated, which drives the sliding plate 621 to slide, causing the rotating rod 613 and the rotating rod 612 to rotate. At the same time, the support 614 is activated, causing the rotating plate 611 to rotate upward at one end near the electric forklift body 1 and downward at the other end. Simultaneously, the driver 442 is activated, which drives the screw 441 to rotate, causing the sliding block 431 to slide along the screw 441, causing the rotating rod 432 to rotate, which in turn causes the pressing plate 42 to rotate downward, so that the pressing plate 42 and the rotating plate 611 rotate synchronously, causing the goods to rotate and tilt the goods.

[0048] Then restart the drive unit 442, drive the screw 441 to rotate, drive the sliding block 431 to slide along the screw 441, drive the rotating rod 432 to rotate, and then drive the extrusion plate 42 to rotate. When the extrusion plate 42 no longer presses the goods, turn off the drive unit 442.

[0049] At this time, the goods can slide along the inclined surface of the rotating plate 611 away from the end of the electric forklift body 1, so that the goods can be automatically unloaded.

[0050] By setting the anti-tipping device 4, after the goods are placed on the forks 2, the adjustment component 43 and the drive component 44 are activated, which can drive the pressing plate 42 to rotate. The pressing plate 42 can then press the top of the goods, reducing the phenomenon that the goods are easy to fall off the forks 2, thereby improving the ease of use of the electric forklift body 1.

[0051] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0053] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A high-tonnage electric forklift, comprising an electric forklift body (1), forks (2) slidably fitted on the electric forklift body (1) in a vertical direction, and a drive unit (3) disposed on the electric forklift body (1) for driving the forks (2) to lift and lower, characterized in that: The electric forklift body (1) is provided with an anti-tipping device (4). The anti-tipping device (4) includes a sliding frame (41) provided on the electric forklift body (1), an extrusion plate (42) rotatably fitted on the sliding frame (41) and used to press the top of the goods on the forks (2), and an extrusion mechanism provided on the sliding frame (41). The extrusion mechanism is used to drive the extrusion plate (42) to rotate. When the extrusion plate (42) rotates to a horizontal position and is located at the top of the goods, it presses the goods. The electric forklift body (1) is provided with a rotating device (6), which includes a rotating component (61) disposed on the electric forklift body (1) and used to drive the goods to rotate, and a power component (62) used to drive the rotating component (61) to move. The rotating assembly (61) includes a rotating plate (611) for rotating the goods, a rotating rod one (612) for rotating the rotating plate (611), a rotating rod two (613) for rotating the rotating rod one (612), a support member (614) for supporting one end of the rotating plate (611) near the electric forklift body (1), and a mounting plate (615) disposed on the electric forklift body (1). The power assembly (62) includes a sliding plate (621) that is slidably fitted on a mounting plate (615) along the length of the electric forklift body (1) and a driver four (622) for driving the sliding plate (621) to slide. One end of the rotating rod two (613) is rotatably fitted with the sliding plate (621).

2. The large-tonnage electric forklift according to claim 1, characterized in that: The extrusion mechanism includes an adjustment component (43) for rotating the extrusion plate (42) and a drive component (44) disposed on the sliding frame (41) for moving the adjustment component (43).

3. A large-tonnage electric forklift according to claim 2, characterized in that: The adjustment assembly (43) includes a sliding block (431) that is slidably fitted on the sliding frame (41) in the vertical direction and a rotating rod (432) for driving the extrusion plate (42) to rotate. One end of the rotating rod (432) is rotatably fitted with the sliding block (431), and the other end is rotatably fitted with the extrusion plate (42).

4. A large-tonnage electric forklift according to claim 3, characterized in that: The drive assembly (44) includes a screw (441) threaded into the sliding block (431) and a drive member (442) for rotating the screw (441), the drive member (442) being mounted on the sliding frame (41).

5. A large-tonnage electric forklift according to claim 4, characterized in that: The electric forklift body (1) is provided with a lifting device (5). The lifting device (5) includes a sliding plate (51) for driving the sliding frame (41) to slide in the vertical direction and a second driver (52) for driving the sliding plate (51) to lift. One end of the second driver (52) is installed on the electric forklift body (1), and the other end of the second driver (52) is installed on the sliding plate (51).

6. A large-tonnage electric forklift according to claim 5, characterized in that: The support member (614) is a driver three. One end of the support member (614) is rotatably engaged with the rotating plate (611), and the other end is rotatably engaged with the sliding plate (621).

7. A large-tonnage electric forklift according to claim 6, characterized in that: The electric forklift body (1) is provided with a slide rail (7), the slide rail (7) includes a fixed part (71) installed on the electric forklift body (1) and a rotating part (72) rotatably engaged with the fixed part (71), and a slider is provided on the mounting plate (615) slidably engaged with the slide rail (7).

Images