Multi-functional four-way running forklift truck

Abstract

The present application relates to warehouse equipment technical field, and disclose a kind of four-way travel fork truck of multifunction, including four-way mobile car body, light source, the light emitted by the light source can project limited length light band on horizontal ground, the light source is connected with the rotator with two degrees of freedom rotation, the rotator can make light source project transverse projection or longitudinal projection, the maximum elevation angle of the light source is horizontal angle.The four-way travel fork truck of multifunction, the light band projected by two side light sources indicates the width of goods, when driver drives fork truck to move forward and backward, can take light band as reference, judge whether the smoothness of front passage, second, when goods is moved on or off goods shelf, make light band projected by light source irradiate on target partition, then lift fork head, make fork head align with light band, can guarantee the accuracy of fork tip alignment position, reduce the mistake caused by insufficient operation experience.

Description

Technical Field

[0001] This invention relates to the field of warehousing equipment technology, specifically to a multi-functional forklift capable of four-way travel. Background Technology

[0002] Four-way forklifts can travel longitudinally forward and backward, as well as laterally, offering flexible steering and excellent maneuverability. The lateral movement capability is particularly advantageous when handling long and slender materials.

[0003] When a four-way forklift is transporting long and slender materials, the driver may have difficulty predicting the space occupied by the goods in the forklift's field of vision due to the uncertainty of the length of the goods being transported. When traveling longitudinally, the forklift may scrape against objects in front, causing the goods to fall.

[0004] Secondly, when moving goods into or out of the shelf, due to the angle in the field of vision, it is difficult to predict the position directly in front of the forks. When moving goods down, the fork tips may be pointing at the goods themselves. When approaching the goods, the fork tips may touch the goods and cause damage. When moving goods onto the shelf, the fork tips may be pointing at the shelf, causing collisions. Summary of the Invention

[0005] To address the shortcomings of the aforementioned background technology, this invention provides a technical solution for a multi-functional forklift capable of four-way travel. The light strips projected by the light sources on both sides indicate the width of the goods. When the driver moves the forklift back and forth, the light strips can be used as a reference to determine whether the passage ahead is smooth. Furthermore, when loading or unloading goods onto or off the shelf, the light strips projected by the light sources illuminate the target partition, guiding the forks to be raised to the optimal height, thus solving the problems raised in the background technology.

[0006] This invention provides the following technical solution: a multi-functional forklift capable of four-way travel, comprising a vehicle body capable of four-way movement, a lifting assembly connected to one side of the vehicle body, a connector connected to the lifting assembly, and a fork connected to the connector.

[0007] The light source emits light that can project a light band of finite length onto a horizontal ground. The light source is connected to a rotating component with two degrees of freedom: rotation and pitch. The rotation of the rotating component allows the light source to project a horizontal or vertical projection. The maximum elevation angle of the light source is a horizontal angle.

[0008] A lifting platform, which drives the light source and rotating components to rise and fall, and the rotating components are connected to the vehicle body through a lifting column.

[0009] Preferably, the lifting platform includes a horizontally arranged horizontal plate, a connecting plate corresponding to the lifting column is fixedly connected to the horizontal plate, a gear is connected to the connecting plate, the gear meshes with the lifting column, the horizontal plate clamps the lifting column through a clamping plate and the gear, at least one side of the clamping plate is smoothly arranged, the gears on both sides are connected together through a connecting shaft, and a motor is connected to the gear on one side.

[0010] Preferably, the light band illuminated by the light source has one color, and multiple color light bands are horizontal.

[0011] Preferably, when the longitudinal projection of the light source is projected onto the ground at the minimum elevation angle, the length of a light strip of one color is the same as the overall length of the vehicle body.

[0012] Preferably, the connector is fixedly connected to a first light sensor at the bottom of the fork head. The first light sensor is connected to a prompting device. When the first light sensor is illuminated by the light strip, the prompting device is triggered to remind the user. When the first light sensor is illuminated by the light strip, the fork head can pass above the illuminated area at a specified height.

[0013] Preferably, the surface of the first photosensor is provided with a filter, which only allows the upper light band to pass through.

[0014] Preferably, the front end of the fork is provided with a second photosensor. When the fork tilt angle is too large, the light strip will be projected onto the second photosensor. The second photosensor is connected to an early warning system. When the second photosensor is illuminated, the early warning system alarm is triggered.

[0015] Preferably, the fork head has an upwardly inclined receiving groove that runs from the outside in, corresponding to the position of the second photosensor, and the second photosensor is assembled in the receiving groove.

[0016] The present invention has the following beneficial effects:

[0017] 1. This multi-functional forklift can travel in four directions. The light strips projected by the light sources on both sides indicate the width of the goods. When the driver moves the forklift back and forth, he can use the light strips as a reference to judge whether the passage ahead is smooth and avoid collisions caused by excessively long goods when passing in front and behind.

[0018] 2. This multi-functional four-way forklift illuminates the target shelf with a light strip projected by the light source when loading or unloading goods. Then, the forks are raised or lowered to align with the light strip. This operation ensures the accuracy of the fork tip alignment and reduces errors caused by insufficient operating experience. Furthermore, when controlling the raising and lowering of the forks, the driver can focus more on the stability of the goods as they rise with the forks, reducing the probability of the goods collapsing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a front view of the present invention;

[0021] Figure 3 This is a schematic diagram of the lifting platform in this invention;

[0022] Figure 4 This is a partial structural diagram of the present invention.

[0023] In the diagram: 1. Vehicle body; 2. Lifting assembly; 3. Connector; 4. Fork head; 5. Light source; 6. Rotating component; 7. Lifting column; 8. Lifting platform; 81. Horizontal plate; 82. Connecting plate; 83. Clamping plate; 84. Gear; 85. Connecting shaft; 9. First light sensor; 10. Second light sensor; A. Shelf; B. Light strip. Detailed Implementation

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

[0025] Please see Figure 1 and Figure 2 A multi-functional forklift capable of four-way travel includes a vehicle body 1. The bottom of the vehicle body 1 is provided with a drive structure capable of lateral and longitudinal movement. A lifting assembly 2 is connected to one side of the vehicle body 1. The lifting assembly 2 is connected to a connector 3. The connector 3 is connected to a fork 4. The lifting assembly 2 drives the connector 3 to lift and lower the fork 4. The existing mechanisms of the vehicle body 1 and the lifting assembly 2 are prior art and are well known to those skilled in the art, and will not be described in detail here.

[0026] A lifting column 7 is fixedly connected to the vehicle body 1. The lifting column 7 is vertically set and is located between the front end of the vehicle body 1 and the lifting assembly 2. The height of the lifting column 7 is approximately the same as the lifting height of the lifting assembly 2. A lifting platform 8 is movably connected to the lifting column 7. Light sources 5 are connected to both sides of the lifting platform 8 through rotating parts 6. The lifting platform 8 moves up and down along the lifting column 7, causing the light sources 5 to move up and down.

[0027] The light emitted by the light source 5 can project a light band of finite length on a horizontal ground. The rotating part 6 has two degrees of freedom: rotation and pitch. The rotation of the rotating part 6 can make the light source 5 project a horizontal or vertical projection. The rotating part 6 can rotate 90 degrees. Initially, the light source 5 projects a vertical projection. After rotating 90 degrees, it projects a horizontal projection. The maximum elevation angle of the light source 5 is a horizontal angle.

[0028] The horizontal projection of the light sources 5 on both sides shows the width of the goods in the forward field of vision. Within the light band, objects or people in front may interfere with the forward movement. The horizontal projection of the light source 5 shows the alignment position of the fork head 4, so that the forks can be accurately inserted into the bottom of the goods, avoiding the forks from hitting the goods or the shelf.

[0029] Please see Figure 3 The lifting platform 8 includes a horizontally positioned horizontal plate 81. Both ends of the horizontal plate 81 are fixedly connected to the rotating component 6. The horizontal plate 81 is pressed against the front end face of the lifting column 7 via a clamping plate 83. At least one side of the clamping plate 83 is smoothly positioned. The clamping plate 83 is fixedly connected to the horizontal plate 81, and the surfaces of the clamping plate 83 and the lifting column 7 are slidably connected. A connecting plate 82 corresponding to the lifting column 7 is fixedly connected to the horizontal plate 81. A gear 84 is connected to the connecting plate 82, and the gear 84 meshes with the rear end face of the lifting column 7. The gear 84 and the clamping plate 83 clamp the lifting column 7. The surfaces of the lifting column 7 and the gear 84 opposite each other have corresponding tooth grooves. The clamping plate 83 is elastic, ensuring the meshing state of the gear 84 and the lifting column 7. The gears 84 on both sides are connected together via a connecting shaft 85 to ensure synchronous rotation. A motor is connected to one side of the gear 84.

[0030] Please see Figure 4 The light band illuminated by the light source 5 has 2-3 colors. The multi-color light band is horizontal. When a two-color light band is selected, when the light source 5 is horizontally projected, two layers of color light bands are formed on the illuminated object. The lower light band is projected onto the edge of the shelf partition, and the upper light band and the fork 4 are projected onto the lower surface of the fork 4. At this time, the fork 4 can move along the upper surface of the shelf partition. When a three-color light band is selected, the middle layer is used for transition to ensure that there is a sufficiently large gap between the fork 4 and the shelf partition.

[0031] When the longitudinal projection of light source 5 is projected onto the ground at the minimum elevation angle, the length of a light strip of one color is the same as the overall length of the vehicle body 1. When the minimum angle is projected onto the ground, the distance between the projection and the vehicle body 1 is 30-50 centimeters. When moving laterally, the length of the light strip is used to determine whether the vehicle can pass.

[0032] The connector 3 is fixedly connected to the bottom of the fork 4 with a first light sensor 9. The first light sensor 9 is connected to a prompting device. When the first light sensor 9 is illuminated by the light strip, the prompting device is triggered to remind the user. The prompting device can be a light or a prompting sound. When the first light sensor 9 is illuminated by the light strip, the fork 4 can pass above the illuminated area at a specified height. The light strip indicates the alignment position of the fork tip 4 to avoid collision between the fork tip and the goods or shelf.

[0033] The surface of the first light sensor 9 is provided with a filter. The filter only allows the upper light band to pass through, while other color light bands are absorbed or reflected to prevent other color light bands from triggering prompts.

[0034] A second light sensor 10 is provided at the front end of the fork head 4. When the tilt angle of the fork head 4 is too large, that is, when the deformation of the fork head 4 is too large, the light strip will be projected onto the second light sensor 10. The second light sensor 10 is connected to an early warning system. When the second light sensor 10 is illuminated, it triggers an alarm of the early warning system, indicating that the fork head 4 is unusable and that the goods are at risk of tipping over.

[0035] The fork head 4 has an upwardly inclined receiving groove corresponding to the position of the second light sensor 10. The second light sensor 10 is installed in the receiving groove to ensure that when it is horizontal, the light strip will not shine on the second light sensor 10. The warning is triggered only when the fork head 4 tilts excessively.

[0036] The working principle and workflow of this invention:

[0037] When moving long goods, first turn on the light sources 5 on both sides at a distance, and adjust the elevation angle of the light sources 5 on both sides to extend the light strip to the edge of the goods. Then control the forklift to move and insert the goods. At this time, the light strips on both sides indicate the width of the goods in the front field of vision when passing back and forth, so as to avoid the driver from bumping into other objects during the back and forth movement.

[0038] When moving goods onto or off the shelf, first select 90 degrees for the light source 5 to project horizontally, then adjust the elevation angle to make the projection horizontal. Move the light source 5 so that the lower light strip is aligned with the upper edge of the partition. Then, control the lifting of the fork head 4 through the lifting assembly 2. When the target height is reached, the upper light strip shines on the first light sensor 9, triggering a prompt and completing the height adjustment of the fork head 4.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-functional forklift capable of four-way travel, comprising a vehicle body (1) capable of four-way movement, wherein a lifting assembly (2) is connected to one side of the vehicle body (1), the lifting assembly (2) is connected to a connector (3), and the connector (3) is connected to forks (4), characterized in that: The light source (5) emits light that can project a light band of finite length onto a horizontal ground surface. The light source (5) is connected to a rotating component (6) with two degrees of freedom: rotation and pitch. The rotating component (6) can rotate to make the light source (5) project a horizontal or vertical projection. The maximum elevation angle of the light source (5) is a horizontal angle. The lifting platform (8) drives the light source (5) and the rotating component (6) to rise and fall. The rotating component (6) is connected to the vehicle body (1) through the lifting column (7). The connector (3) is fixedly connected to a first light sensor (9) at the bottom of the fork (4). The first light sensor (9) is connected to a prompting device. When the first light sensor (9) is illuminated by the light strip, the prompting device is triggered to remind the user. When the first light sensor (9) is illuminated by the light strip, the fork (4) can pass above the illuminated area at a specified height.

2. The multi-functional four-way travel forklift truck according to claim 1, characterized by: The lifting platform (8) includes a horizontally arranged horizontal plate (81), which is fixedly connected to a connecting plate (82) corresponding to the lifting column (7). The connecting plate (82) is connected to a gear (84), which meshes with the lifting column (7). The horizontal plate (81) clamps the lifting column (7) through a clamping plate (83) and the gear (84). The clamping plate (83) has at least one side that is smoothly arranged. The gears (84) on both sides are connected together through a connecting shaft (85). One side of the gear (84) is connected to a motor.

3. The multi-functional four-way travel forklift truck according to claim 1, characterized by: The light band illuminated by the light source (5) has 2-3 colors, and the light band of multiple colors is horizontal.

4. The multi-functional four-way forklift truck according to claim 3, wherein: When the light source (5) is projected longitudinally onto the ground at the minimum elevation angle, a light strip of one color has the same length as the overall length of the vehicle body (1).

5. The multi-functional four-way travel forklift truck according to claim 3, characterized by: The surface of the first photosensor (9) is provided with a filter, which only allows the upper light band to pass through.

6. The multi-functional four-way forklift truck of claim 1, wherein: The fork (4) is provided with a second light sensor (10) at the front end. When the fork (4) tilts too much, the light strip will be projected onto the second light sensor (10). The second light sensor (10) is connected to an early warning system. When the second light sensor (10) is illuminated, the early warning system alarm is triggered.

7. A multi-functional four-way forklift according to claim 6, characterized in that: The fork head (4) is provided with an upwardly inclined receiving groove from the outside to the inside corresponding to the position of the second light sensor (10), and the second light sensor (10) is assembled in the receiving groove.

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