Intelligent forklift special for plastic foam plates

Abstract

The utility model relates to a forklift, in particular to a special intelligent forklift for a plastic foam board, which comprises a forklift body, a gantry mounted at the front end of the forklift and a pair of fork plates mounted on the gantry, and each fork plate comprises a vertical moving arm capable of moving up and down along the gantry and a transverse bearing arm used for bearing goods. Widening mechanisms are fixedly arranged on the outward sides of the bearing arms in the horizontal direction, and each widening mechanism comprises a widening shell and an extension arm; a pressing mechanism located above the bearing arm is fixedly arranged at the upper end of the portal frame, the pressing mechanism is arranged in the direction facing the front end of the forklift, and the pressing mechanism and the bearing arm clamp the upper face and the lower face of goods respectively. An anti-collision sensing device is fixedly arranged at the front end of the pressing mechanism so as to monitor the condition of obstacles in front of the forklift in real time and give an alarm. The cargo transport vehicle is simple in structure, capable of improving safety in the cargo transport process and preventing cargoes from toppling, falling and colliding, and suitable for transport of cargoes large in size and light in weight.

Description

Technical Field

[0001] The utility model relates to a forklift, in particular to an intelligent forklift special for plastic foam boards. Background Art

[0002] A forklift is an industrial handling vehicle, typically powered by a gasoline engine or battery. It can load, unload, stack, and transport goods over short distances. It is an essential piece of handling equipment in the warehousing and logistics industries, and is widely used in factory workshops, warehouses, ports, stations, airports, freight yards, and distribution centers. It saves manpower and improves efficiency when handling large and heavy goods. The forklift's forklift, also known as the cargo fork, is one of its core components. It typically consists of two shovel-like fork arms located on the forklift's front mast. These arms are used to lift and support cargo, completing loading, unloading, and other tasks. To accommodate the handling of various types and volumes of cargo, the effective handling width of the forklift's forklift can be adjusted by moving two vertical arms. This adjustment is typically done manually or electrically by pulling up the fixed fork pins on the vertical arms, manually or automatically moving the arms to the appropriate position, and then re-securing the fixed fork pins. With the advancement of intelligent technology, some functional forklifts are equipped with sensor control systems that detect obstacles to address the problem of obstructed vision when handling larger cargo.

[0003] During the production process, PET plastic foam boards need to be transferred and transported between different processes. Due to their large size and light weight, the following problems arise during the transportation process using forklifts: although the effective transportation width of the forklift is adjustable, the adjustment range is limited, and the maximum adjustment can only be adjusted to the same width as the vehicle body. This width is still a large gap compared to the plastic foam boards to be transported. When encountering uneven ground or turning during transportation, the goods are very likely to sway left and right and fall over, causing production accidents; in addition, sensors and other devices used to detect obstacles are blocked by the large volume of plastic foam boards, making them unable to work normally, causing collisions and damage to the goods. Utility Model Content

[0004] In order to solve the above deficiencies in the prior art, the present invention aims to provide a special intelligent forklift for plastic foam boards, so as to achieve the purpose of transporting large-volume, lightweight plastic foam boards or similar goods, prevent tipping and collision during transportation, and improve transportation safety.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a special intelligent forklift for plastic foam boards, comprising a forklift body, a mast installed at the front end of the forklift, and a pair of fork plates installed on the mast, the fork plates comprising a movable arm in the vertical direction that can move up and down along the mast and a load-bearing arm in the horizontal direction for carrying goods, and the load-bearing arm is fixedly provided with a widening mechanism on the side facing outward in the horizontal direction; a clamping mechanism located above the load-bearing arm is fixedly provided at the upper end of the mast, the clamping mechanism is arranged toward the front end of the forklift and parallel to the load-bearing arm, and the clamping mechanism and the load-bearing arm respectively clamp the upper and lower sides of the goods; an anti-collision sensing device is fixedly provided at the front end of the clamping mechanism.

[0006] As a limitation of the present utility model: the widening mechanism includes a widening shell and an extension arm. The widening shell is fixed on the outward side of the load-bearing arm. The widening shell is a hollow rectangular parallelepiped. The length direction is arranged along the extension direction of the load-bearing arm. The outward side is open. The extension arm is placed in the widening shell. One end of the extension arm is rotatably connected to the electric shaft in the widening shell, and the other end can be rotatably extended out of the widening shell. The electric shaft is fixed at the front end or rear end of the widening shell.

[0007] As a definition of the present utility model: the extension arm includes a first extension arm and a second extension arm, and the first extension arm and the second extension arm are both placed in the widened shell. One end of the first extension arm is rotatably connected to the first electric shaft located at the front end of the widened shell, and the other end can be rotatably extended out of the widened shell; one end of the second extension arm is rotatably connected to the second electric shaft located at the rear end of the widened shell, and the other end can be rotatably extended out of the widened shell.

[0008] As a limitation of the present utility model: the clamping mechanism is connected to the door frame through a telescopic arm that can be extended and retracted up and down. The clamping mechanism includes a clamping arm, a pressure plate, a spring, and a pressure sensor. The clamping arm is arranged toward the front end of the forklift. The pressure plate is located below the clamping arm. Several springs are arranged between the pressure plate and the clamping arm. The pressure sensor is arranged between the pressure plate and the clamping arm to detect the compression state of the spring.

[0009] As a limitation of the present invention: the clamping mechanism can be provided in two groups, which are respectively provided corresponding to a pair of load-bearing arms located below the clamping mechanism.

[0010] As a limitation of the present invention: the telescopic arm is any one of an electric telescopic arm, a cylinder telescopic arm, and a hydraulic cylinder telescopic arm.

[0011] As a limitation of the present invention: the anti-collision sensing device includes an ultrasonic sensor and an alarm, the ultrasonic sensor is electrically connected to the alarm, the ultrasonic sensor monitors obstacles in front of the forklift and generates a monitoring signal, and transmits the monitoring signal to the alarm.

[0012] As a limitation of the present utility model: the load-bearing arm has a hollow structure, a telescopic rod is fixedly installed at one end of the load-bearing arm close to the forklift, and a load-bearing extension arm is fixedly connected to the front end of the telescopic rod. The load-bearing extension arm can be retracted or partially extended from the load-bearing arm to increase the usable length of the load-bearing arm.

[0013] As a limitation of the present invention: the telescopic rod is an electric telescopic rod.

[0014] Due to the adoption of the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0015] (1) The utility model is provided with a widening mechanism on both sides of the fork plate. The extension arm in the widening mechanism can be rotated and extended to increase the effective width of the fork plate to prevent large-volume cargo from tilting to the sides and falling. The extension arm can also be provided in two groups to increase the protection of both sides of the bottom of the cargo. The widening mechanism can be retracted into the widening shell when not in use, without affecting the normal use of the fork plate during loading and unloading of cargo;

[0016] (2) The clamping mechanism of the utility model can compress large, lightweight cargo from above. The clamping mechanism and the load-bearing arm clamp the upper and lower sides of the cargo respectively, further improving the stability of the transportation process and ensuring that the upper layer of layered cargo will not fall off. The clamping mechanism is also equipped with a spring and a pressure sensor to keep the applied pressure within a certain range, avoiding damage to the surface of the plastic foam board due to excessive pressure.

[0017] (3) The utility model has an anti-collision sensing device fixed at the front end of the clamping mechanism. The ultrasonic sensor can monitor the obstacle situation in front of the goods in real time, and send out an alarm to remind the operator through the alarm to prevent the occurrence of collision and production accidents;

[0018] (4) The utility model is also provided with a retractable load-bearing extension arm on the load-bearing arm, so that the usable length of the load-bearing arm is lengthened, so as to be suitable for the transportation of large-volume goods.

[0019] In summary, the utility model has a simple structure, and the widening mechanism, the pressing mechanism and the anti-collision sensing device are used in conjunction with each other to improve the safety during cargo transportation. It is suitable for the transportation of large-volume, light-weight cargo, especially plastic foam boards. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the utility model;

[0022] Figure 2This is a schematic diagram of the use state of the fork plate widening mechanism and the load-bearing extension arm in the embodiment of the utility model;

[0023] Figure 3 This is a structural diagram of the clamping mechanism of an embodiment of the utility model.

[0024] In the figure: 1-forklift, 2-fork plate, 21-movable arm, 22 load-bearing arm, 3-gantry, 31-hanging bracket, 4-widened shell, 41-first extension arm, 42-second extension arm, 43-electric shaft, 5-load-bearing extension arm, 6-pressing mechanism, 61-pressing arm, 62-pressing plate, 63-spring, 64-pressure sensor, 7-telescopic arm, 8-ultrasonic sensor. DETAILED DESCRIPTION

[0025] The preferred embodiment of the present invention will be described below with reference to the accompanying drawings. It should be understood that the intelligent forklift for handling plastic foam boards described herein is a preferred embodiment and is only used to illustrate and explain the present invention, and does not constitute a limitation of the present invention.

[0026] The directional terms or positional relationships such as "front", "back", "left" and "right" described in the present invention are based on the directional relationships in the drawings of the present invention specification and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the content protected by the present invention. Example

[0027] This embodiment Figures 1 to 3 The figure shows an intelligent forklift for handling plastic foam boards, comprising a forklift 1, a mast 3 mounted at the front end of the forklift 1, and a pair of fork plates 2 mounted on the mast 3. The mast 3 is provided with a hanging bracket 31 that can be moved up and down for raising or lowering the fork plates 2. The mast 3 also includes a lifting chain, a lifting cylinder, and other devices, which are not shown in the figure.

[0028] The fork plate includes an L-shaped movable arm 21 and a load-bearing arm 22. The movable arm 21 is vertical, fixed to the hanger 31, and can move up and down along the door frame 3. The load-bearing arm 22 is horizontal and is used to place and carry cargo. A widening mechanism is fixed to the horizontally outward side of the load-bearing arm 22. The widening mechanism includes a widening shell 4 and an extension arm. The widening shell 4 is fixed to the outward surface of the load-bearing arm 22. The widening shell 4 is a hollow rectangular parallelepiped, with its length extending along the direction of extension of the load-bearing arm 22. Its outward side is open. The extension arm is placed within the widening shell 4. One end of the extension arm is rotatably connected to the electric shaft 43 within the shell, and the other end can be rotated and extended from the opening of the widening shell 4, thereby widening the usable width of the fork plate 2. The degree of rotation of the electric shaft 43 can be controlled by a control system to form a certain angle between the extension arm and the load-bearing arm 22. Preferably, the extension arm is perpendicular to the load-bearing arm 22 when in use. The motorized shaft 43 can be fixed at the front or rear end of the widened housing 4, thereby increasing the length of the extension arm. Alternatively, the motorized shaft 43 can be fixed at other locations within the widened housing 4. According to the aforementioned operating mode of the extension arm, a rotatable extension arm is provided within each widened housing 4. This arm rotates to extend out of the widened housing 4 and form a predetermined angle with the widened housing 4 to support both sides of the cargo. Furthermore, two rotatable extension arms can be provided within each widened housing 4 to enhance support. Regardless of the number of extension arms provided, they can be retracted into the widened housing 4 when not in use, without interfering with the normal operation of the fork plate 2 during loading and unloading.

[0029] like Figure 2 As shown, to better protect the cargo when it tilts, two extension arms are provided in each widened housing 4 in this embodiment. Specifically, they include a first extension arm 41 and a second extension arm 42. Both the first extension arm 41 and the second extension arm 42 are positioned within the widened housing 4. One end of the first extension arm 41 is rotatably connected to a motorized shaft 43 located at the front end of the widened housing 4, and the other end can be rotated and extended out of the widened housing 4. One end of the second extension arm 42 is rotatably connected to a motorized shaft 43 located at the rear end of the widened housing 4, and the other end can be rotated and extended out of the widened housing 4. When both the first extension arm 41 and the second extension arm 42 are extended out of the widened housing 4, they simultaneously support the cargo bottom in both the front and rear directions. The first and second extension arms 41, 42 can be fully retracted into the widened housing 4, without affecting the normal use of the fork plate 2 during loading and unloading.

[0030] like Figure 2As shown, in order to further accommodate large-volume cargo, the length of the load-bearing arm 22 in this embodiment can be lengthened. Specifically, the load-bearing arm 22 is set to a hollow structure, and a telescopic rod (not shown in the figure) is fixedly installed in the load-bearing arm 22 near the forklift 1 body. The front end of the telescopic rod is fixedly connected to the load-bearing extension arm 5. The load-bearing extension arm 5 can be retracted or partially extended from the load-bearing arm 22 to increase the usable length of the load-bearing arm 22. The telescopic rod is an electric telescopic rod.

[0031] like Figure 3 As shown, a telescopic arm 7 that can be extended and retracted vertically is fixedly mounted on the upper end of the mast 3. The upper end of the telescopic arm 7 is fixedly connected to a clamping mechanism 6. The clamping mechanism 6 is arranged horizontally toward the front end of the forklift 1 and is parallel to the load-bearing arm 22 located below it. The telescopic arm 7 can be any of an electric telescopic arm, a cylinder telescopic arm, and a hydraulic cylinder telescopic arm. The telescopic arm 7 drives the clamping mechanism 6 to move up and down, pressing the clamping mechanism 6 against the top of the cargo. The clamping mechanism 6 includes a clamping arm 61, a pressing plate 62, a spring 63, and a pressure sensor 64. The pressing plate 62 is located below the clamping arm 61 and is connected to the clamping arm 63 by a plurality of springs 63 fixed between the pressing plate 62 and the clamping arm 63. The pressure sensor 64 is located between the pressing plate 62 and the clamping arm 61 to detect the compression state of the spring 63. The compression degree of the spring 63 can be controlled by setting a fixed pressure sensor 64. When the pressure sensor 64 receives a signal that the spring 63 has been compressed, the telescopic arm 7 stops moving, that is, the clamping mechanism 6 stops clamping, ensuring that the applied pressure is within a certain range. This can not only compress the goods but also prevent damage to the surface of the plastic foam board due to excessive pressure. During operation, the plastic foam board can be clamped by raising the fork plate 2 or lowering the clamping mechanism 6, or by raising the fork plate 2 and lowering the clamping mechanism 6 at the same time. The clamping mechanism 6 can be provided in one or two groups. In this embodiment, the clamping mechanism 6 is provided in one group. When the clamping mechanism 6 is provided in two groups, the two groups of clamping mechanisms 6 are respectively provided corresponding to the pair of load-bearing arms 22 located below them.

[0032] When a forklift 1 is transporting a large amount of cargo, it creates an obstruction in front of the forklift 1. Although the operator can complete the transport by reversing or other operations, he still needs to determine the space conditions in front of the forklift 1. Therefore, an anti-collision sensing device is fixed to the front end of the clamping mechanism 6 to monitor in real time whether there are any obstacles in front of the cargo. Specifically, the anti-collision sensing device includes an ultrasonic sensor 8 and an alarm (not shown in the figure). The ultrasonic sensor 8 is electrically connected to the alarm. The ultrasonic sensor 8 monitors obstacles in front of the forklift 1 and can determine the distance of the obstacles. The generated monitoring signal is transmitted to the alarm, which sounds an alarm to alert the operator to prevent collisions and production accidents. The anti-collision sensing device can be implemented using existing technology. However, if it is installed on the forklift 1 body, it will lose its monitoring function due to obstruction caused by large-volume cargo. Therefore, the anti-collision sensing device in the present invention is installed at the front end of the clamping mechanism 6 where there is no cargo obstruction.

[0033] The electric shaft 43, telescopic rod, telescopic arm 7, etc. involved in this embodiment are all electrically connected to the drive motor of the forklift 1, powered by the drive motor, and are respectively provided with a control device for the operator to operate. The control device can be implemented using existing technology, and the electric shaft 43, telescopic rod, telescopic arm 7, etc. also use existing technology.

[0034] When using this embodiment, the operator first adjusts the fork plate 2 of the forklift 1 to the appropriate height so that the load-bearing arm 22 can be inserted under the plastic foam board. Then, the forklift 1 moves forward to place the plastic foam board above the fork plate 2, and slightly lifts the fork plate 2 to lift the goods. The fork plate 2 is adjusted to the appropriate height again to prepare for transportation. Then, the extension arms in the widening housing 4 on both sides of the fork plate 2 are opened, and the load-bearing extension arms 5 inside the load-bearing arms 22 are pushed out to the appropriate position by the telescopic rod. The telescopic arm 7 is adjusted downward to extend and retract so that the pressing mechanism 6 presses against the top of the plastic foam board. The plastic foam board is then carried. After it is carried to the designated location, the pressing mechanism 6 is raised, the extension arms of the widening mechanism and the load-bearing extension arms 5 are retracted, and the goods are unloaded.

Claims

1. An intelligent forklift for plastic foam boards, comprising a forklift body, a mast mounted at the front end of the forklift, and a pair of fork plates mounted on the mast. The fork plates include a vertically movable arm that can move up and down along the mast and a horizontally loaded arm for carrying cargo. The fork plates are characterized by: The load-bearing arm is fixedly provided with a widening mechanism on the side facing outward in the horizontal direction; the upper end of the door frame is fixedly provided with a clamping mechanism located above the load-bearing arm, the clamping mechanism is arranged toward the front end of the forklift and parallel to the load-bearing arm, and the clamping mechanism and the load-bearing arm respectively clamp the upper and lower sides of the cargo; an anti-collision sensing device is fixedly provided at the front end of the clamping mechanism.

2. The intelligent forklift for plastic foam boards according to claim 1, characterized in that: The widening mechanism includes a widening shell and an extension arm. The widening shell is fixed on the outward side of the load-bearing arm. The widening shell is a hollow rectangular parallelepiped. The length direction is arranged along the extension direction of the load-bearing arm. The outward side is open. The extension arm is placed in the widening shell. One end of the extension arm is rotatably connected to the electric shaft in the widening shell, and the other end can be rotatably extended out of the widening shell. The electric shaft is fixed at the front end or rear end of the widening shell.

3. The intelligent forklift for plastic foam boards according to claim 2, characterized in that: The extension arm includes a first extension arm and a second extension arm. The first extension arm and the second extension arm are both placed in the widened shell. One end of the first extension arm is rotatably connected to the first electric shaft located at the front end of the widened shell, and the other end can be rotatably extended out of the widened shell; one end of the second extension arm is rotatably connected to the second electric shaft located at the rear end of the widened shell, and the other end can be rotatably extended out of the widened shell.

4. The intelligent forklift for plastic foam boards according to any one of claims 1 to 3, characterized in that: The clamping mechanism is connected to the door frame through a telescopic arm that can be extended and retracted up and down. The clamping mechanism includes a clamping arm, a pressure plate, a spring, and a pressure sensor. The clamping arm is arranged toward the front end of the forklift, and the pressure plate is located below the clamping arm. Several springs are arranged between the pressure plate and the clamping arm. The pressure sensor is arranged between the pressure plate and the clamping arm to detect the compression state of the spring.

5. The intelligent forklift for plastic foam boards according to claim 4, characterized in that: The pressing mechanism is provided in two groups, which are respectively provided corresponding to a pair of load-bearing arms located below the pressing mechanism.

6. The intelligent forklift for plastic foam boards according to claim 5, characterized in that: The telescopic arm is any one of an electric telescopic arm, a cylinder telescopic arm, and a hydraulic cylinder telescopic arm.

7. The intelligent forklift for plastic foam boards according to any one of claims 1 to 3 and 5, characterized in that: The anti-collision sensing device includes an ultrasonic sensor and an alarm. The ultrasonic sensor is electrically connected to the alarm. The ultrasonic sensor monitors obstacles in front of the forklift and generates a monitoring signal, and transmits the monitoring signal to the alarm.

8. The intelligent forklift for plastic foam boards according to claim 7, characterized in that: The load-bearing arm has a hollow structure, and a telescopic rod is fixedly installed at one end of the load-bearing arm close to the forklift. The front end of the telescopic rod is fixedly connected to a load-bearing extension arm. The load-bearing extension arm can be retracted or partially extended from the load-bearing arm to increase the usable length of the load-bearing arm.

9. The intelligent forklift for plastic foam boards according to claim 8, characterized in that: The telescopic rod is an electric telescopic rod.

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