Piling car with rotatable pallet forks

By designing a stacker truck with rotatable forks, and utilizing hydraulic lifting and drive mechanisms to achieve multi-directional adjustment of the forks, the inconvenience of unidirectional fork operation in existing technologies is solved, improving loading flexibility and safety in confined spaces.

CN223792868UActive Publication Date: 2026-01-13YUANREN INTELLIGENT EQUIP (SHANGHAI) CO LTD
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Patent Information

Application Number
CN202520525478.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-01-13
Estimated Expiration
2035-03-25

AI Technical Summary

Technical Problem

Existing stacker truck forks can only be raised or lowered in one direction, making it difficult to adjust flexibly in confined spaces and resulting in loading inconvenience.

Method used

A stacker truck with rotatable forks was designed. The lifting and lowering of the forks is controlled by a hydraulic lifting mechanism, and the mounting frame is rotated by a drive mechanism to achieve 0°, 90° and 180° adjustment of the forks. The fork spacing is adjusted by electric push rod and gear rack structure, and a stabilizer is equipped to ensure stable rotation.

Benefits of technology

It enables flexible adjustment of the forks in different directions, improves the ease of operation in confined spaces, reduces safety hazards, and enhances the versatility and stability of the forks.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a piling car with a rotatable pallet fork, and relates to the technical field of piling cars. A stacking car with a rotatable pallet fork comprises a stacking car body, one end of the stacking car body is fixedly connected with a connecting frame, the connecting frame is rotationally connected with a mounting frame, the stacking car body is provided with a driving mechanism for driving the mounting frame to rotate, and one side face of the mounting frame is slidably connected with a lifting seat. And a lifting mechanism for driving the lifting seat to perform lifting adjustment is arranged in the mounting frame, and the lifting mechanism is a hydraulic lifting mechanism. The pallet fork on the lifting seat is controlled to ascend and descend through the lifting mechanism so as to load and stack goods, the mounting frame is driven to rotate at the top of the connecting frame through the driving mechanism, so that the direction of the pallet fork is adjusted, the piling car body does not need to steer in the working process, operation is convenient and fast, and the working efficiency is improved. And under the action of the adjusting mechanism, the distance between the forks is adjusted according to the specification of the cargo tray, and the universality is high.
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Description

Technical Field

[0001] This utility model relates to a stacker truck, specifically a stacker truck with rotatable forks, and belongs to the field of stacker truck technology. Background Technology

[0002] A stacker truck is an industrial vehicle used for handling, stacking, and retrieving goods. Its hydraulic system is a key component in enabling these functions. The hydraulic system of a stacker truck mainly consists of key components such as an oil tank, pump, control valve, cylinder, and connecting pipelines. These components work together to ensure that the stacker truck can complete various tasks smoothly and efficiently.

[0003] Chinese Patent Publication No. CN220537429U discloses an adjustable fork structure for a pallet stacker. The stacker body has a front support frame fixedly installed on one side. Both the stacker body and the front support frame have movable wheels movably installed at their bottoms. An adjustment mechanism includes a lifting plate and a motor. This invention, through the interaction of a reverse screw, fork carriage, threaded sleeve, and sliding groove, allows for convenient rotation of the motor output end. This rotation of the reverse screw synchronously drives the threaded sleeve to move along the thread direction of the reverse screw, enabling the fork carriage to easily move closer and further away. It allows for different adjustments according to pallet specifications. Simultaneously, during the movement of the threaded sleeve, the sliding groove and sliding block engage, limiting the movement of the threaded sleeve and increasing stability during movement.

[0004] However, the inventor of the above device believes that there are certain defects. The above device can only realize the lifting or lowering of the forks in one direction. If the operation needs to be changed, the vehicle body can only be adjusted. When in a small space, it is not convenient to make adjustments, which brings certain inconvenience to loading. Therefore, this utility model provides a stacker truck with rotatable forks. Utility Model Content

[0005] The purpose of this invention is to provide a fork-rotating stacker to solve the aforementioned problems. This addresses the issue that existing technologies can only raise or lower the forks in one direction; changing direction requires adjusting the vehicle body, which is inconvenient in confined spaces and causes loading difficulties.

[0006] This utility model is achieved through the following technical solution: a stacker truck with rotatable forks, including a stacker truck body, a connecting frame fixedly connected to one end of the stacker truck body, a mounting frame rotatably connected to the connecting frame, a drive mechanism for driving the mounting frame to rotate on the stacker truck body, a lifting seat slidably connected to one side of the mounting frame, a lifting mechanism for driving the lifting seat to adjust its height inside the mounting frame, the lifting mechanism being a hydraulic lifting mechanism, two forks mounted on one side of the lifting seat, an adjustment mechanism for adjusting the distance between the two forks inside the lifting seat, the adjustment mechanism including an electric push rod fixed to one side of the lifting seat.

[0007] Preferably, both ends of the mounting frame are fixedly connected to connecting shafts, the connecting shaft at the bottom of the mounting frame is rotatably connected to the top of the connecting frame, a stabilizing frame is fixedly connected to the stacker vehicle body, and the connecting shaft at the top of the mounting frame is rotatably connected to one end of the stabilizing frame. Through the stabilizing frame, the mounting frame can rotate stably on the connecting frame.

[0008] Preferably, the drive mechanism includes a motor fixed on the stabilizer frame, and sprockets are fixedly connected to the output shaft end of the motor and the top of the connecting shaft. The two sprockets are connected by a transmission chain, and the motor is started to drive the mounting frame to rotate on the connecting frame.

[0009] Preferably, one side of the lifting seat is provided with a through groove, and a fixed slide rod is fixedly connected inside the lifting seat. Two connecting sliders are slidably connected on the fixed slide rod. One end of each connecting slider is fixedly connected to a connecting plate. The forks are mounted on the connecting plates. The two forks are mounted on the lifting seat by the action of the connecting sliders, the fixed slide rod and the connecting plates.

[0010] Preferably, the lifting seat is internally rotatably connected to a connecting gear, and each connecting slider is fixedly connected to a connecting rack rod at its top. Both connecting rack rods mesh with the connecting gear. The telescopic end of the electric push rod is fixedly connected to one connecting rack rod. By activating the electric push rod, one connecting rack rod is pushed to slide. Under the meshing action of the connecting gear and the two connecting rack rods, the two connecting sliders slide closer to each other.

[0011] Preferably, a pin seat is fixedly connected to the connecting plate, and one end of the fork is hinged to the inside of the pin seat by a pin. The fork is mounted on one side of the connecting plate by the provided pin seat.

[0012] Preferably, a threaded sleeve is fixedly connected to the pin seat, and a fixing bolt is threaded inside the threaded sleeve. One end of the fixing bolt extends into the interior of the pin seat. A fixing hole corresponding to the fixing bolt is provided on the fork. By flipping the fork upward and then rotating the fixing bolt so that one end is inserted into the fixing hole, the rotation of the fork is restricted.

[0013] This utility model provides a stacker truck with rotatable forks, which has the following beneficial effects:

[0014] 1. This device uses a lifting mechanism to control the lifting forks on the lifting platform to lift and lower for loading and stacking goods. A drive mechanism drives the mounting frame to rotate on top of the connecting frame, thereby adjusting the direction of the forks. No steering of the stacker truck is required during operation, making it convenient to operate. Furthermore, the spacing of the forks can be adjusted according to the specifications of the pallet under the action of the adjustment mechanism, making it highly versatile.

[0015] 2. This device flips the forks upwards, allowing them to rotate parallel to the mounting frame when not in use. This facilitates movement of the stacker vehicle and reduces potential safety hazards. With the help of the stabilizing frame, the mounting frame rotates stably on top of the connecting frame. Attached Figure Description

[0016] Figure 1 This is a perspective view of the entire utility model;

[0017] Figure 2 This is a perspective view of the mounting bracket of this utility model;

[0018] Figure 3 For the present utility model Figure 2 Enlarged view at point A;

[0019] Figure 4 This is a sectional perspective view of the lifting seat of this utility model.

[0020] [Explanation of Key Component Symbols]

[0021] 1. Stacker body; 2. Connecting frame; 3. Mounting frame; 31. Connecting shaft; 4. Lifting seat; 41. Connecting slider; 42. Fixed slide bar; 43. Connecting rack; 44. Connecting gear; 45. Electric push rod; 5. Forks; 51. Fixing hole; 6. Connecting plate; 7. Pin seat; 71. Threaded sleeve; 72. Fixing bolt; 8. Stabilizer; 81. Motor. Detailed Implementation

[0022] This utility model embodiment provides a stacker truck with rotatable forks.

[0023] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 A fork-rotating stacker includes a stacker body 1, with electric wheels mounted on the bottom of the stacker body 1 and a controller mounted on the stacker body 1. A connecting frame 2 is fixedly connected to one end of the stacker body 1, and movable wheels supporting the movement of the connecting frame 2 are mounted on the bottom of the connecting frame 2. A mounting frame 3 is rotatably connected to the connecting frame 2. The stacker body 1 is provided with a drive mechanism for driving the mounting frame 3 to rotate. A lifting seat 4 is slidably connected to one side of the mounting frame 3. The mounting frame 3 is provided with a lifting mechanism for driving the lifting seat 4 to adjust its height. The lifting mechanism is a hydraulic lifting mechanism. Two forks 5 are mounted on one side of the lifting seat 4. The drive mechanism drives the mounting frame 3 to rotate on top of the connecting frame 2, thereby adjusting the orientation of the forks 5. It can perform three-directional operation of 0°, 90°, and 180°. The hydraulic lifting mechanism is the hydraulic system of an existing forklift, which will not be described in detail in this application.

[0024] Please refer to it again. Figure 1 and Figure 2 Both ends of the mounting frame 3 are fixedly connected to connecting shafts 31. The connecting shaft 31 at the bottom of the mounting frame 3 is rotatably connected to the top of the connecting frame 2. A stabilizing frame 8 is fixedly connected to the stacker vehicle body 1. The connecting shaft 31 at the top of the mounting frame 3 is rotatably connected to one end of the stabilizing frame 8. The stabilizing frame 8 is in the shape of an inverted L. The stability of the rotation of the mounting frame 3 is improved by the stabilizing frame 8. The driving mechanism includes a motor 81 fixed on the stabilizing frame 8. A sprocket is fixedly connected to the output shaft end of the motor 81 and the top of the connecting shaft 31. The sprocket is driven to rotate by starting the motor 81. Under the action of the two sprockets and the transmission chain, the mounting frame 3 is driven to rotate between the stabilizing frame 8 and the connecting frame 2.

[0025] Please refer to it again. Figure 1 , Figure 2 , Figure 3 and Figure 4 The lifting seat 4 has a through groove on one side. A fixed slide rod 42 is fixedly connected inside the lifting seat 4. Two connecting sliders 41 are slidably connected to the fixed slide rod 42. A connecting plate 6 is fixedly connected to one end of each connecting slider 41. One end of the connecting slider 41 slides inside the through groove. The forks 5 are installed on the connecting plate 6. By controlling the rotation of the two connecting sliders 41 on the fixed slide rod 42, the distance between the two connecting plates 6 is adjusted, thereby adjusting the distance between the two forks 5.

[0026] Please refer to it again. Figure 1 , Figure 2 and Figure 4The lifting seat 4 is equipped with an adjustment mechanism for adjusting the distance between the two forks 5. The adjustment mechanism includes an electric push rod 45 fixed to one side of the lifting seat 4. A connecting gear 44 is rotatably connected inside the lifting seat 4. A connecting rack rod 43 is fixedly connected to the top of each connecting slider 41. Both connecting rack rods 43 mesh with the connecting gear 44. The telescopic end of the electric push rod 45 is fixedly connected to one connecting rack rod 43. The teeth of the two connecting rack rods 43 are symmetrically arranged about the connecting gear 44. By activating the electric push rod 45, one connecting rack rod 43 is pushed to move. Under the meshing action of the connecting gear 44 and the two connecting rack rods 43, the other connecting rack rod 43 is driven to slide together, so that the two connecting sliders 41 slide closer to each other or further away from each other.

[0027] Please refer to it again. Figure 1 , Figure 2 and Figure 3 A pin seat 7 is fixedly connected to the connecting plate 6. One end of the fork 5 is hinged to the inside of the pin seat 7 via a pin. A threaded sleeve 71 is fixedly connected to the pin seat 7. A fixing bolt 72 is threadedly connected inside the threaded sleeve 71. One end of the fixing bolt 72 extends into the inside of the pin seat 7. The fork 5 has a fixing hole 51 corresponding to the fixing bolt 72. By rotating the fixing bolt 72, one end of the fixing bolt 72 is inserted into the inside of the threaded sleeve 71. Then, by flipping the fork 5, the fork 5 is rotated to be parallel to the mounting frame 3. Then, by rotating the fixing bolt 72, one end of it is inserted into the inside of the fixing hole 51 to restrict the rotation of the fork 5, so that the fork 5 can be folded and stored when the device is not in use.

[0028] Working principle: The lifting mechanism controls the forks 5 to rise for loading and stacking goods. The starting motor 81 drives the connecting shaft 31 to rotate through the two sprockets and the transmission chain, thereby rotating the mounting frame 3 to adjust the orientation of the forks 5 to 0°, 90°, and 180°. The electric push rod 45 pushes a connecting rack rod 43 to slide. The meshing action of the connecting gear 44 and the two connecting rack rods 43 causes the two connecting sliders 41 to slide closer to each other on the fixed slide rod 42, thereby adjusting the distance between the two forks 5 to facilitate the loading of pallets of different sizes. When the forks 5 are not in use, the fixing bolt 72 is rotated to retract one end of the fixing bolt 72 into the threaded sleeve 71, and then the forks 5 are flipped so that they are parallel to the mounting frame 3 for folding and storage.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rotatable fork stacker comprising a stacker body (1), characterised in that: One end of the stacker body (1) is fixedly connected with a connecting frame (2), the connecting frame (2) is rotatably connected with a mounting frame (3), the stacker body (1) is provided with a driving mechanism for driving the mounting frame (3) to rotate, one side of the mounting frame (3) is slidably connected with a lifting seat (4), the inside of the mounting frame (3) is provided with a lifting mechanism for driving the lifting seat (4) to lift and adjust, the lifting mechanism is a hydraulic lifting mechanism, one side of the lifting seat (4) is provided with two forks (5), the inside of the lifting seat (4) is provided with an adjusting mechanism for adjusting the distance between the two forks (5), the adjusting mechanism comprises an electric push rod (45) fixed on one side of the lifting seat (4).

2. A rotatable forklift according to claim 1, characterized in that: Both ends of the mounting frame (3) are fixedly connected with connecting shafts (31), the connecting shafts (31) at the bottom of the mounting frame (3) are rotatably connected to the top of the connecting frame (2), the stacker body (1) is fixedly connected with a stabilizing frame (8), the connecting shafts (31) at the top of the mounting frame (3) are rotatably connected to one end of the stabilizing frame (8).

3. A rotatable forklift according to claim 2, wherein: The driving mechanism comprises a motor (81) fixed on the stabilizing frame (8), the output shaft end of the motor (81) and the top of one connecting shaft (31) are both fixedly connected with a chain wheel, and the two chain wheels are drivingly connected through a transmission chain.

4. A rotatable forklift according to claim 1, characterized in that: One side of the lifting seat (4) is provided with a through sliding groove, the inside of the lifting seat (4) is fixedly connected with a fixed sliding rod (42), the fixed sliding rod (42) is slidably connected with two connecting sliding blocks (41), one end of each connecting sliding block (41) is fixedly connected with a connecting plate (6), and the fork (5) is mounted on the connecting plate (6).

5. A rotatable forklift according to claim 4, wherein: The inside of the lifting seat (4) is rotatably connected with a connecting gear (44), the top of each connecting sliding block (41) is fixedly connected with a connecting rack rod (43), and the two connecting rack rods (43) are engaged with the connecting gear (44), and the telescopic end of the electric push rod (45) is fixedly connected with one connecting rack rod (43).

6. A rotatable forklift according to claim 4, wherein: The connecting plate (6) is fixedly connected with a pin shaft seat (7), and one end of the fork (5) is hingedly connected in the inside of the pin shaft seat (7).

7. A rotatable forklift according to claim 6, characterized in that: The pin shaft seat (7) is fixedly connected with a threaded sleeve (71), the inside of the threaded sleeve (71) is threadedly connected with a fixed bolt (72), one end of the fixed bolt (72) extends into the inside of the pin shaft seat (7), and the fork (5) is provided with a fixed hole (51) corresponding to the fixed bolt (72).

Citation Information

Patent Citations

  • Adjustable pallet fork structure of pallet piling car

    CN220537429U