Booster fork

Abstract

This utility model discloses a booster fork, belonging to the field of forklift technology. It includes a fork positioned at the bottom of the front of a mounting frame, with the back of the mounting frame connected to the fork carriage. This utility model reduces the contact area between the goods and the forks during unloading, thereby reducing static friction and allowing the goods to quickly detach from the forks. When the forklift moves in the opposite direction and causes displacement, it reduces the amplitude of tilting or swaying of the goods, preventing tipping. It eliminates the need for a spring-loaded quick-unloading device, thus reducing damage to fragile goods and avoiding economic losses during unloading. By installing a load-bearing plate between the two forks, it enables the smooth unloading of loose and irregularly shaped goods, improving unloading efficiency and ensuring smooth unloading operations.

Description

Technical Field

[0001] This utility model relates to the field of forklift technology, and in particular to a push-type forklift. Background Technology

[0002] In the field of forklift forks, existing technologies have significant technical bottlenecks and limitations. First, during unloading, the static friction between the upper surface of the existing forks and the goods is relatively large, which prevents the goods from quickly detaching from the forks, resulting in low unloading efficiency. At the same time, because the forklift suddenly moves in the opposite direction during unloading, the goods will sway from side to side, which can easily cause the goods to tip over. Existing technologies include installing a spring-loaded device on the forks to make the rear of the goods suddenly spring up to facilitate unloading, using the explosive force of the spring to make the goods quickly detach from the forks. However, this solution is prone to damage to fragile goods (such as glass and ceramics), resulting in economic losses during the unloading process.

[0003] Secondly, another existing technology involves installing a booster device at the tail of the forks to assist in unloading. However, the contact area between the goods and the forks is still very large, resulting in high static friction. This booster device has a generally low unloading efficiency and also occupies a large amount of cargo-carrying space on the forks.

[0004] Secondly, some loose and irregular goods (such as loose goods packaged in sacks) are prone to deformation between the two forks, causing the goods to come into direct contact with the ground. This increases the static friction of the goods, making it difficult for the goods to separate from the forks even when the forklift is reversing during unloading, resulting in low unloading efficiency.

[0005] To overcome the above-mentioned shortcomings, the inventor invented a booster fork. Utility Model Content

[0006] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a push-type fork that reduces the contact area between the goods and the forks during unloading, thereby reducing the static friction of the goods. This allows the goods to quickly detach from the forks during unloading. When the forklift moves in the opposite direction and causes displacement, it reduces the amplitude of tilting or swaying of the goods, preventing them from tipping over. It eliminates the need for a spring-loaded quick unloading device, thus reducing damage to fragile goods and avoiding economic losses during unloading. By installing a load plate between the two forks, it enables the smooth unloading of loose and irregularly shaped goods without occupying a large amount of the fork's loading space, while improving unloading efficiency and ensuring smooth unloading.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0008] A booster fork includes a fork, characterized in that the fork is disposed at the bottom of the front of a mounting frame, the back of the mounting frame is connected to the fork carriage, a motor housing is disposed at the bottom of the fork carriage, a motor in the motor housing is fixedly connected to a threaded rod, the threaded rod is threadedly connected to the center of a booster plate, a booster rail is reserved in the middle of the fork, a booster plate is embedded between two booster rails, and a beveled blade is disposed at the top of the booster plate.

[0009] As a further implementation, the two booster tracks are mirror-symmetrical, and the width of the booster plate is greater than the spacing between the outer sides of the forks.

[0010] As a further implementation, anti-tilt plates are provided at both ends of the booster plate, and the anti-tilt plates are L-shaped.

[0011] As a further implementation, the upper surface of the booster plate is lower than the upper surface of the fork, and the top of the slanted blade is higher than the upper surface of the fork.

[0012] As a further implementation, the booster plate has a rectangular cross-section, and its height is equal to the height of the booster track.

[0013] As a further implementation, a load-bearing plate is also provided at the end of the threaded rod closest to the cargo.

[0014] As a further implementation, the load-bearing plate includes a bearing plate, a fixing plate, and a cylinder, with the center of the bearing plate threadedly connected to a threaded rod.

[0015] As a further implementation, cylinder output ends are provided on both sides of the support plate, and the cylinder output ends are fixedly connected to the fixed plate. The height of the fixed plate is equal to the height of the booster track.

[0016] As a further implementation, after the piston rod of the cylinder is fully extended, the distance between the two fixed plates is equal to the distance between the two forks.

[0017] The beneficial effects of this utility model are as follows:

[0018] This utility model uses a push plate embedded between two push rails, and the top of the push plate is provided with a beveled blade. A threaded rod is threadedly connected to the center of the push plate. The push plate moves toward the cargo under the drive of the threaded rod. The push plate drives the beveled blade to move in the same direction. When the beveled blade moves to the bottom of the cargo, it can reduce the contact area between the cargo and the forks, thereby reducing the static friction between the cargo and the forks. During unloading, it improves the efficiency of cargo detaching from the forks. Moreover, the beveled blade of this application basically does not occupy the cargo-carrying space of the forks. Attached Figure Description

[0019] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0020] Figure 1 This is a perspective view of Embodiment 1 of this utility model;

[0021] Figure 2 This is a utility model Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 This is a side view of Embodiment 1 of this utility model;

[0023] Figure 4 This is a perspective view of the booster plate and the oblique blade of Embodiment 1 of this utility model;

[0024] Figure 5 This is a perspective view of Embodiment 2 of this utility model;

[0025] Figure 6 This is a perspective view of the load-bearing plate of this utility model;

[0026] Among them, 1. Fork; 2. Mounting bracket; 3. Fork carriage; 4. Motor housing; 5. Motor; 6. Threaded rod; 7. Push plate; 8. Push rail; 9. Angled blade; 10. Anti-tilt plate; 11. Load plate; 111. Bearing plate; 112. Fixing plate; 113. Cylinder. Detailed Implementation

[0027] Example 1

[0028] This embodiment provides a booster fork, such as Figure 1-4As shown, the forklift includes a fork 1, which serves as the main structure for carrying goods. The surface of the fork 1 is in direct contact with the goods. The fork 1 is located at the bottom of the front of the mounting frame 2, which is located at the top of the fork. The mounting frame 2 serves as a support structure connecting the fork 1 to the forklift body, ensuring the overall rigidity of the fork 1. The back of the mounting frame 2 is connected to the fork carriage 3. A motor housing 4 is located at the bottom of the fork carriage 3. The output end of the motor 5 inside the motor housing 4 is located on the center surface of the fork carriage 3. This is to ensure that the force output by the motor 5 is evenly distributed between the two forks 1, avoiding uneven force on the goods and causing them to tilt (i.e., achieving smooth unloading). The motor 5 inside the motor housing 4 is fixedly connected to a threaded rod 6, which is threadedly connected to the center of the push plate 7. This connection between the threaded rod 6 and the motor 5 converts the rotational motion of the motor 5 into an assistive force. The push plate 7 moves linearly (towards or away from the goods). A booster rail 8 is pre-installed in the middle of the fork 1 (that is, the booster rail 8 is installed inside the fork 1 body). The booster plate 7 is embedded between the two booster rails 8. The booster rails 8 allow the booster plate 7 to move in a direction toward the goods. The booster rails 8 provide a guiding function, limit the movement trajectory of the booster plate 7, and ensure the stability of the booster plate 7 when moving horizontally. The top of the booster plate 7 is provided with a slanted blade 9. When the booster plate 7 moves toward the goods, the slanted blade 9 lifts the bottom of the goods at a progressive angle, avoiding the impact damage to fragile goods caused by traditional lifting devices. At the same time, it reduces the contact area between the bottom of the goods and the fork 1, thereby reducing the static friction of the goods on the fork 1. Meanwhile, the slanted blade 9 provides a driving force for the goods to move away from the forklift, achieving efficient unloading.

[0029] The two booster rails 8 are mirror-symmetrical, ensuring that the booster plate 7 is evenly stressed during movement and preventing tilting or jamming of goods when lifted due to skewness of the booster rails 8. The width of the booster plate 7 is greater than the spacing on the outer side of the forks 1, allowing the booster plate 7 to completely cover the outer space of the forks 1. Anti-tilt plates 10 are installed at both ends of the booster plate 7. The anti-tilt plates 10 are L-shaped, and their L-shaped structure prevents lateral movement of goods in the horizontal direction. The wider booster plate 7 provides installation space for the anti-tilt plates 10. Compared to traditional forklifts, the addition of anti-tilt plates 10 prevents goods from tipping over in the left or right direction during unloading. The L-shaped structure of the anti-tilt plates 10 allows them to partially support the goods even without activating the device, preventing them from tipping over during transport.

[0030] The upper surface of the booster plate 7 is lower than the upper surface of the fork 1, ensuring that the main contact surface of the goods is still the fork 1. The top of the slanted blade 9 is higher than the upper surface of the fork 1, so that the slanted blade 9 first contacts the bottom of the goods. The goods are gradually lifted by the slanted blade 9, which can reduce the static friction of the bottom of the goods and reduce the impact on fragile items. Moreover, compared with the booster installed at the tail of the fork 1 in the prior art (Chinese patent document "CN201621081109.3" "Forklift Attachments"), the booster device in the prior art occupies a large amount of forklift loading space. The slanted blade 9 of this application can reduce the contact area between the goods and the fork 1 while moving to the bottom of the goods, thereby reducing the static friction between the goods and the fork 1. During unloading, the efficiency of the goods leaving the fork 1 is improved. Moreover, the slanted blade 9 of this application basically does not occupy the loading space of the fork 1.

[0031] The booster plate 7 has a rectangular cross-section, which provides higher bending strength. The height of the booster plate 7 is equal to the height of the booster track 8. The height of the booster plate 7 is consistent with that of the booster track 8 to ensure that there is no gap or swaying during the movement.

[0032] Example 2

[0033] The difference between this embodiment and Embodiment 1 is that, Figure 5-6 As shown, a load-bearing plate 11 is also provided at the end of the threaded rod 6 near the cargo. The load-bearing plate 11 includes a support plate 111, a fixing plate 112, and a cylinder 113. The center of the support plate 111 is threadedly connected to the threaded rod 6. The support plate 111 is connected to the threaded rod 6 through the thread, which evenly transmits the supporting force to the bottom of the cargo and avoids local stress concentration. Moreover, the support plate 111 fills part of the gap between the two forks 1, preventing loose cargo from falling between the two forks 1 and causing the cargo to come into contact with the ground, thus increasing the static friction of the cargo. This design scheme reduces the contact between the cargo and the ground when dealing with loose cargo, which is conducive to more efficient unloading.

[0034] The support plate 111 has output ends of cylinders 113 on both sides (cylinders 113 are located inside the support plate 111 and can be connected to an external air source). The output ends of cylinders 113 are fixed to the fixed plate 112. By adjusting the extension and retraction of cylinders 113, the distance between the fixed plates 112 can be dynamically adjusted. Because the support plate 111 has a threaded hole in the center, in the initial state, without starting cylinders 113, the support plate 111 is rotated to connect with the threaded rod 6. The operator rotates the support plate 111 from the end of the threaded rod 6 to move it to a suitable position between the two forks 1, keeping the support plate 111 horizontal. Then, cylinders 113 are started. The output end of cylinders 113 moves the fixed plate 112 and embeds it into the booster rail 8. After the piston rod of cylinders 113 is fully extended, the distance between the two fixed plates 112 is equal to the distance between the two forks 1.

[0035] The height of the fixed plate 112 is equal to the height of the booster rail 8, ensuring that the goods are centered and aligned with the forks 1, preventing uneven loading during unloading. This design allows irregularly shaped goods to be placed on the upper surface of the support plate 111. Other aspects of Embodiment 2 are the same as in Embodiment 1.

[0036] This application considers the side of the mounting bracket 2 facing the goods as the front and the side of the mounting bracket 2 away from the goods as the back.

[0037] The motor 5 in this application uses the YEJ160M-6 motor that is compatible with the Siemens MM440 frequency converter (or can be replaced with a motor of other brands with the same power and function).

[0038] The length, height, and curvature of the lines of motor 5, oblique blade 9, and load plate 11 in the attached diagram are for illustrative purposes only, and those skilled in the art can make adaptive adjustments according to actual usage.

[0039] The cylinder 113 is a conventional setting in the prior art. Those skilled in the art can select a suitable device or setting based on the above description to realize that "the distance between the fixed plates 112 can be dynamically adjusted by adjusting the extension and retraction of the cylinder 113".

[0040] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A push-type fork, comprising forks, characterized in that, The forks are mounted on the bottom of the front of the mounting frame, and the back of the mounting frame is connected to the fork carriage. A motor box is located at the bottom of the fork carriage. The motor inside the motor box is fixed to a threaded rod, which is threaded to the center of the booster plate. A booster rail is reserved in the middle of the forks, and the booster plate is embedded between the two booster rails. The top of the booster plate is provided with a beveled edge.

2. The booster fork according to claim 1, characterized in that, The two booster rails are mirror-symmetrical, and the width of the booster plate is greater than the spacing between the outer sides of the forks.

3. The booster fork according to claim 2, characterized in that, Anti-tilt plates are installed at both ends of the booster plate, and the anti-tilt plates are L-shaped.

4. The booster fork according to claim 1, characterized in that, The upper surface of the booster plate is lower than the upper surface of the forks, and the top of the slanted blade is higher than the upper surface of the forks.

5. The booster fork according to claim 4, characterized in that, The booster plate has a rectangular cross-section, and its height is equal to the height of the booster track.

6. The booster fork according to claim 1, characterized in that, A load-bearing plate is also installed at the end of the threaded rod closest to the cargo.

7. The booster fork according to claim 6, characterized in that, The load-bearing plate includes a load-bearing plate, a fixed plate, and a cylinder. The center of the load-bearing plate is threadedly connected to a threaded rod.

8. The booster fork according to claim 7, characterized in that, The bearing plate has cylinder output ends on both sides, and the cylinder output ends are fixedly connected to the fixed plate. The height of the fixed plate is equal to the height of the booster track.

9. The booster fork according to claim 8, characterized in that, After the piston rod of the cylinder is fully extended, the distance between the two fixed plates is equal to the distance between the two forks.

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