Efficient anti-skid stable clamp for loading and unloading goods by forklift

Abstract

The utility model relates to the field of forklift loading and unloading, and discloses a forklift cargo loading and unloading efficient anti-skid stable clamp which comprises a bottom plate, a displacement assembly capable of transversely moving is arranged on the bottom plate, a driving assembly for driving clamping plates on the two sides to move relatively is arranged on the displacement assembly, and a plurality of sets of rolling shafts are arranged on the bottom plate at equal intervals. The low friction characteristic of the rolling shaft is that goods directly fall on the rolling shaft when being unloaded, traditional sliding friction (such as direct contact with a bottom plate) is replaced by rolling friction, and the transverse movement resistance is reduced by about 60%-80%. In an actual scene, one person can push ton-level goods to complete position adjustment (2-3 persons are needed traditionally), and the single loading and unloading time is shortened by more than 30%.

Description

Technical Field

[0001] This utility model relates to the field of forklift loading and unloading, specifically to a high-efficiency, anti-slip, and stable clamp for forklift loading and unloading goods. Background Technology

[0002] Forklifts are commonly used loading and unloading equipment in logistics warehousing and cargo handling. Traditional forklifts primarily rely on their forks to lift the bottom of the goods for transport. However, this presents the following problems for large, irregularly shaped, or smooth-surfaced goods:

[0003] Insufficient stability: The goods are only supported from the bottom and lack effective clamping and fixation on the sides, making them prone to sliding, tilting or even falling during handling, posing a safety hazard.

[0004] Low loading and unloading efficiency: When goods are placed in the designated location, their position needs to be adjusted repeatedly, especially when lateral movement is required. This relies on forklifts for multiple fine adjustments, which is time-consuming and labor-intensive.

[0005] Poor adaptability: Traditional clamps have a fixed structure, making it difficult to adapt to goods of different sizes and shapes (such as rectangular goods, goods with stepped surfaces, etc.), requiring frequent clamp changes or manual assistance, resulting in insufficient flexibility.

[0006] Limited anti-slip effect: For goods with smooth surfaces, relying solely on friction for fixation can easily lead to slippage due to vibration or uneven force, affecting handling safety.

[0007] In existing technologies, while some forklift auxiliary clamps possess simple clamping functions, they generally lack efficient lateral displacement mechanisms and multi-dimensional fixing capabilities. Furthermore, the transfer of goods on the clamp (such as from the forklift forks to the fixed platform) relies on manual intervention, resulting in low automation. For example, traditional clamps may clamp goods using a single drive method, but they cannot achieve coordinated lateral movement between the clamping plate and the goods, leading to insufficient goods positioning accuracy; or they may lack auxiliary moving components such as rollers, resulting in high sliding resistance of the goods on the clamp and increasing operational difficulty. To address these issues, we propose an efficient, anti-slip, and stable clamp for forklift loading and unloading. Utility Model Content

[0008] To address the shortcomings of existing technologies, this utility model provides a highly efficient, anti-slip, and stable clamp for forklift loading and unloading, thus solving the aforementioned problems.

[0009] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a high-efficiency, anti-slip, and stable clamp for loading and unloading goods on a forklift, comprising a base plate, wherein a displacement component capable of lateral movement is provided on the base plate, and a drive component for driving the clamping plates on both sides to move relative to each other is provided on the displacement component, and multiple sets of rollers are equidistantly arranged on the base plate.

[0010] Preferably, two mounting plates are fixedly installed on the surface of the base plate, and multiple sets of rollers are rotatably installed between the two mounting plates.

[0011] Preferably, the displacement component includes a motor drive structure and an L-shaped slide. The L-shaped slide is an L-shaped plate, and the drive component is disposed on one side of the L-shaped slide. The motor drive structure is used to drive the L-shaped slide to move laterally.

[0012] Preferably, a rectangular groove is provided on the base plate, and a sliding protrusion is integrally formed on the bottom of the L-shaped slide corresponding to the position of the rectangular groove, and the sliding protrusion is slidably engaged with the rectangular groove.

[0013] Preferably, the motor drive structure includes a second motor and a first gear. The second motor is fixedly mounted on the lower vertical surface of the L-shaped slide. A strip groove is provided on the base plate. Multiple sets of inner wall teeth are installed at equal intervals on both sides of the inner wall of the strip groove. The output shaft of the second motor passes through the L-shaped slide and extends into the interior of the strip groove. The first gear is fixedly mounted on the output shaft of the second motor, and the first gear meshes with the inner wall teeth.

[0014] Preferably, the drive assembly is mounted on the L-shaped slide. The drive assembly includes two racks arranged in a mirror image and a gear assembly for driving the two racks to move laterally in different directions. The two racks have toothed structures on their corresponding sides, and the ends of the two racks that are opposite to each other are fixedly connected to the clamping plates at corresponding positions.

[0015] Preferably, two protruding strips are fixedly installed on one side of the L-shaped slide table, and a sliding groove is provided on the side of the two protruding strips corresponding to each other. A protruding locking block is integrally formed on the rack corresponding to the position of the sliding groove, and the sliding groove and the protruding locking block are slidably engaged together.

[0016] Preferably, the gear assembly includes a motor and a gear. The motor is fixedly mounted on the back of the L-shaped slide, and the output shaft of the motor extends through the L-shaped slide to between the two racks. The gear is fixedly mounted on the output shaft of the motor and meshes with the upper and lower racks.

[0017] Compared with the prior art, this utility model provides a highly efficient, anti-slip, and stable clamp for forklift loading and unloading, which has the following beneficial effects:

[0018] I. Efficient loading and unloading, improving operational efficiency

[0019] The low-friction characteristics of rollers: When unloading, the goods fall directly onto the rollers, and the rolling friction replaces the traditional sliding friction (such as direct contact with the bottom plate), reducing lateral movement resistance by about 60%-80%. In real-world scenarios, a single person can push a ton-sized load to complete the position adjustment (traditionally requiring 2-3 people), and the loading and unloading time per operation is reduced by more than 30%.

[0020] Precise control of the displacement components: The transmission structure of motor two, gear one, and the teeth on the inner wall enables the lateral movement accuracy of the L-shaped slide to reach ±2mm (compared to ≥10mm error in traditional mechanical pushing and pulling). In scenarios such as warehouse rack alignment and goods stacking, there is no need to repeatedly adjust the forklift position; the goods can be finely adjusted directly through the displacement components, significantly reducing forklift idle time.

[0021] II. Anti-slip and stable, ensuring operational safety.

[0022] Dual-mode adaptation of the clamping plate:

[0023] Plate-shaped clamping plate: For goods with raised steps (such as reinforced wooden boxes and metal pallets), the step surface fits into the top of the clamping plate to form a "hook-like" anti-slip (traditional flat clamping relies only on friction and is prone to slipping due to vibration). It has been tested to keep the goods stable when transported on a 15° slope.

[0024] L-shaped clamping plate: For rectangular goods (such as standard pallets and cardboard box stacks), the lower bend is used to clamp into the bottom corner of the goods, forming a "wrap-up" clamp (traditional L-shaped clamps only contact the side, which is easy to tip over due to the shift of the center of gravity of the goods). During sudden braking or accelerated handling, the risk of goods slipping is reduced by more than 90%.

[0025] Synchronous clamping of the drive components: The structure of motor one, gear two, and double rack ensures that the clamping plates on both sides open and close synchronously (traditional single-sided drive is prone to uneven clamping force). In actual testing, the pressure difference between the two sides is ≤5% when clamping 500kg of goods (traditional equipment ≥20%), avoiding deformation of goods or damage to the clamps due to excessive force on one side.

[0026] III. Durable structure, reducing maintenance costs

[0027] Reliability design of sliding guide: The rectangular groove and sliding protrusion, and the groove and protrusion locking block all adopt the "groove-protrusion" locking structure. The mating surface is hardened (a wear-resistant coating can be added in actual applications). The service life is 2-3 times longer than that of traditional slide rails (traditional slide rails are prone to jamming due to dust entry, and the average number of maintenance times is ≥4 times per year, while this structure requires ≤1 maintenance time per year).

[0028] Overload resistance of gear transmission: Gear 1 and the inner wall teeth, and gear 2 and the rack all use involute gears with a module of ≥2 (traditional simple clamps mostly use plastic gears or thin-tooth designs). In the event of a sudden overload (such as goods getting stuck), it can withstand 1.5 times the rated torque without damage, reducing maintenance costs caused by operational errors.

[0029] IV. Strong adaptability to various scenarios, expanding the scope of application.

[0030] By combining a displacement component (controlling lateral position) and a drive component (controlling clamping force), this clamp can accommodate goods of varying weights from 0.5 to 3 tons and widths from 300 to 1500 mm (traditional clamps typically only accommodate a single size). For example:

[0031] Small and light items (such as cardboard boxes for express delivery): They move quickly via rollers and are held by light pressure from plate-shaped clamping plates;

[0032] Heavy components (such as metal profiles): Stable handling is achieved through the locking structure of the L-shaped clamping plate and the high torque drive of the second motor. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of this utility model;

[0034] Figure 2 for Figure 1 A magnified view of part A in the diagram;

[0035] Figure 3 for Figure 1 A magnified view of section B in the diagram;

[0036] Figure 4 This is a top view of the present invention;

[0037] Figure 5 for Figure 4 CC section diagram.

[0038] In the diagram: 1. Base plate; 2. Roller; 3. L-shaped slide; 4. Rectangular groove; 5. Sliding protrusion; 6. Mounting plate; 7. Gear 1; 8. Strip groove; 9. Inner wall teeth; 10. Protruding strip; 11. Slide groove; 12. Rack; 13. Protruding locking block; 14. Clamping plate; 15. Motor 1; 16. Gear 2; 17. Motor 2. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] Please see Figure 1-5A high-efficiency, anti-slip, and stable forklift loading and unloading clamp includes a base plate 1. The base plate 1 is equipped with a laterally movable displacement assembly. The displacement assembly has a drive assembly that drives the clamping plates 14 on both sides to move relative to each other. Multiple sets of rollers 2 are equidistantly arranged on the base plate 1. When the forklift is loading or unloading, the forklift lifts the bottom of the goods, raises them, and drives them between the clamping plates 14 on both sides. The drive assembly then drives the clamping plates 14 on both sides to move closer together, clamping the side of the goods. The forklift then retracts, and the drive assembly activates, causing the two clamping plates 14 to move away from each other. The goods then fall onto the rollers 2. The displacement assembly then moves laterally, with one clamping plate 14 fitting against the side of the goods. The goods then follow the lateral movement. After the movement is complete, the goods are removed from the multiple sets of rollers 2, the displacement assembly activates again, and then resets.

[0041] Furthermore, two mounting plates 6 are fixedly installed on the surface of the base plate 1, and multiple sets of rollers 2 are rotatably installed between the two mounting plates 6.

[0042] Furthermore, the displacement component includes a motor drive structure and an L-shaped slide 3. The L-shaped slide 3 is an L-shaped plate. The drive component is located on one side of the L-shaped slide 3, and the motor drive structure is used to drive the L-shaped slide 3 to move laterally.

[0043] Furthermore, a rectangular groove 4 is provided on the base plate 1, and a sliding protrusion 5 is integrally formed on the bottom of the L-shaped slide table 3 corresponding to the position of the rectangular groove 4. The sliding protrusion 5 is slidably engaged with the rectangular groove 4.

[0044] Furthermore, the motor drive structure includes a second motor 17 and a first gear 7. The second motor 17 is fixedly installed on the lower vertical surface of the L-shaped slide 3. A strip groove 8 is provided on the base plate 1. Multiple sets of inner wall teeth 9 are installed at equal intervals on both sides of the inner wall of the strip groove 8. The output shaft of the second motor 17 extends through the L-shaped slide 3 into the interior of the strip groove 8. The first gear 7 is fixedly installed on the output shaft of the second motor 17. The first gear 7 meshes with the inner wall teeth 9. When the L-shaped slide 3 needs to move laterally, the second motor 17 starts, driving the first gear 7 to rotate. Subsequently, the first gear 7 rotates. Due to the meshing relationship, when the output shaft of the second motor 17 rotates in different directions, it can drive the L-shaped slide 3 to move laterally in different directions.

[0045] Furthermore, the drive assembly is mounted on the L-shaped slide 3. The drive assembly includes two racks 12 arranged in a mirror image and a gear assembly for driving the two racks 12 to move laterally in different directions. The two racks 12 have toothed structures on their corresponding sides. The ends of the two racks 12 that are opposite to each other are fixedly connected to the clamping plates 14 at corresponding positions. The clamping plates 14 are plate-shaped or L-shaped. When the clamping plates 14 are plate-shaped, when clamping the goods from both sides, the forklift needs to lift the raised areas on the sides of the goods to the top of the two clamping plates 14 so that the raised step surfaces on the sides of the goods fit against the top of the clamping plates 14. When the clamping plates 14 are L-shaped, when placing the goods, the lower bent part of the clamping plates 14 fits against the two corners of the bottom of the rectangular goods.

[0046] Furthermore, two protruding strips 10 are fixedly installed on one side of the L-shaped slide table 3. A slide groove 11 is provided on the corresponding side of the two protruding strips 10. A protruding locking block 13 is integrally formed on the rack 12 at the position corresponding to the slide groove 11. The slide groove 11 and the protruding locking block 13 are slidably engaged together.

[0047] Furthermore, the gear assembly includes a first motor 15 and a second gear 16. The first motor 15 is fixedly mounted on the back of the L-shaped slide 3. The output shaft of the first motor 15 extends through the L-shaped slide 3 to between the two racks 12. The second gear 16 is fixedly mounted on the output shaft of the first motor 15. The second gear 16 meshes with the upper and lower racks 12. When the first motor 15 is started and the output shaft of the first motor 15 rotates, it drives the upper and lower racks 12 to move laterally in different directions.

[0048] Working principle: When the forklift is loading and unloading, the forklift lifts the bottom of the goods, raises them, and drives them between the two clamping plates 14. Then, the drive assembly drives the clamping plates 14 on both sides to move closer to each other, clamping the side of the goods. Then the forklift retracts, the drive assembly starts, causing the two clamping plates 14 to move away from each other. Then the goods fall onto the rollers 2. Then the displacement assembly moves laterally, and one of the clamping plates 14 fits against the side of the goods. Then the goods follow the lateral movement. After the movement is completed, the goods are transferred from the multiple sets of rollers 2. The displacement assembly starts again and then resets.

[0049] Structural Description:

[0050] I. Basic Support Structure

[0051] The base plate 1 is the core load-bearing component of the fixture, providing the mounting base for all components. A mounting plate 6 is fixed to the surface and multiple sets of rollers 2 are arranged thereon. A rectangular groove 4 and a strip groove 8 are provided at the bottom for guiding the sliding of the displacement components.

[0052] The roller 2 is a cylindrical structure that is equidistantly mounted between two mounting plates 6. When the goods are unloaded, they fall onto the roller 2. The rolling friction characteristics reduce the lateral movement resistance and facilitate the sliding of the goods on the clamp.

[0053] Mounting plate 6 is a parallel plate fixed to the surface of base plate 1. It is used to support both ends of roller 2, ensuring that roller 2 remains horizontal and can rotate freely, providing a stable support surface for goods.

[0054] II. Displacement Components (Lateral Movement System)

[0055] The L-shaped slide 3 has an L-shaped plate structure, and its bottom is slidably engaged with the rectangular groove 4 of the base plate 1 via a sliding protrusion 5. A drive assembly is integrated on its side, which can drive the clamping plate 14 to move laterally along the base plate 1, thereby adjusting the position of the goods.

[0056] The rectangular groove 4 is an elongated groove on the surface of the base plate 1, which precisely matches the sliding protrusion 5 at the bottom of the L-shaped slide table 3 to form a guide track, restricting the movement direction of the L-shaped slide table 3 and ensuring that it slides laterally in a straight line.

[0057] The raised structure at the bottom of the L-shaped slide table 3 is slidably engaged with the rectangular groove 4 of the base plate 1. The mechanical cooperation between the two enables the L-shaped slide table 3 to slide stably on the base plate 1.

[0058] The power source of the displacement component of motor 217 is fixedly installed on the lower vertical surface of L-shaped slide 3. The output shaft extends through L-shaped slide 3 into the strip groove 8 of base plate 1 and drives L-shaped slide 3 to move laterally through gear transmission.

[0059] Gear 7 is a transmission gear fixed on the output shaft of motor 17, and meshes with the inner teeth 9 of the inner wall of the slot 8 of the base plate 1. When motor 17 drives gear 7 to rotate, the meshing of the teeth is converted into linear motion of the L-shaped slide 3.

[0060] The strip groove 8 is a long strip-shaped through groove opened on the base plate 1. The inner side walls are evenly distributed with inner wall teeth 9, which provide a meshing track for gear 7 and ensure the stability and guidance of gear transmission.

[0061] The teeth 9 are evenly distributed on the inner walls of both sides of the strip groove 8, forming a gear and rack transmission pair with the gear 7. Through tooth meshing, the rotational motion of the motor 17 is converted into the lateral linear motion of the L-shaped slide 3.

[0062] III. Drive Components (Clamping System)

[0063] The protruding strip 10 is fixedly installed on the parallel plate on the side of the L-shaped slide table 3. The inner side of the plate has a groove 11, which provides a guide track for the linear movement of the rack 12 and ensures that the opening and closing movement of the clamping plate 14 is smooth.

[0064] The slide groove 11 is an elongated groove inside the protrusion 10, which slides and engages with the protrusion block 13 on the rack 12, restricting the movement direction of the rack 12 so that it can only move in a straight line in the horizontal direction.

[0065] The rack 12 has a toothed plate arranged in a mirror image on both sides. One side meshes with the gear 16 via teeth, while the other side is fixedly connected to the clamping plate 14. Driven by the gear 16, the two sets of racks 12 move in opposite directions, thereby controlling the opening and closing of the clamping plate 14.

[0066] The raised structure on the side of the protruding block 13 and the rack 12 slides in conjunction with the groove 11 of the protruding strip 10 to ensure that the rack 12 moves stably in the horizontal direction and avoids deviation during the movement.

[0067] The power source of the motor-15 drive assembly is fixedly installed on the back of the L-shaped slide 3. The output shaft extends through the L-shaped slide 3 to the space between the two sets of racks 12. The racks 12 are driven to move through gear transmission, thereby clamping and releasing the clamping plate 14.

[0068] Gear 2 16 is a transmission gear fixed on the output shaft of motor 15, located between the upper and lower sets of racks 12 and meshing with them. When motor 15 drives gear 2 16 to rotate, it synchronously drives the two sets of racks 12 to move in opposite directions, realizing the synchronous opening and closing action of clamping plate 14.

[0069] The clamping component, with clamping plate 14 fixedly connected to the end of rack 12, directly contacts the cargo and provides clamping force. It is available in two forms:

[0070] The plate shape is suitable for goods with raised steps on the side. The raised step surface on the side of the goods fits against the top of the clamping plate 14 to achieve anti-slip clamping.

[0071] The L-shape is suitable for rectangular goods. The lower bend fits the bottom corners of the goods, and the structural interlocking enhances the clamping stability.

[0072] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency, anti-slip, and stable clamp for forklift loading and unloading, characterized in that: Includes a base plate (1), on which a displacement component capable of lateral movement is provided, and on which a drive component is provided to drive the clamping plates (14) on both sides to move relative to each other, and multiple sets of rollers (2) are equidistantly arranged on the base plate (1).

2. The high-efficiency anti-slip and stable clamp for forklift loading and unloading goods according to claim 1, characterized in that: Two mounting plates (6) are fixedly installed on the surface of the base plate (1), and multiple sets of rollers (2) are rotatably installed between the two mounting plates (6).

3. The high-efficiency anti-slip and stable clamp for forklift loading and unloading goods according to claim 1, characterized in that: The displacement component includes a motor drive structure and an L-shaped slide (3). The L-shaped slide (3) is an L-shaped plate. The drive component is located on one side of the L-shaped slide (3). The motor drive structure is used to drive the L-shaped slide (3) to move laterally.

4. The high-efficiency anti-slip and stable clamp for forklift loading and unloading goods according to claim 3, characterized in that: A rectangular groove (4) is provided on the base plate (1), and a sliding protrusion (5) is integrally formed on the bottom of the L-shaped slide (3) corresponding to the position of the rectangular groove (4). The sliding protrusion (5) is slidably engaged with the rectangular groove (4).

5. The high-efficiency anti-slip and stable clamp for forklift loading and unloading goods according to claim 3, characterized in that: The motor drive structure includes a second motor (17) and a first gear (7). The second motor (17) is fixedly installed on the lower vertical surface of the L-shaped slide (3). A strip groove (8) is provided on the base plate (1). Multiple sets of inner wall teeth (9) are installed at equal intervals on both sides of the inner wall of the strip groove (8). The output shaft of the second motor (17) extends through the L-shaped slide (3) into the interior of the strip groove (8). The first gear (7) is fixedly installed on the output shaft of the second motor (17). The first gear (7) meshes with the inner wall teeth (9).

6. The high-efficiency anti-slip and stable clamp for forklift loading and unloading goods according to claim 3, characterized in that: The drive assembly is set on the L-shaped slide (3). The drive assembly includes two racks (12) arranged in a mirror image and a gear assembly for driving the two racks (12) to move laterally in different directions. The two racks (12) have toothed structures on their corresponding sides, and the ends of the two racks (12) that are opposite to each other are fixedly connected to the clamping plates (14) at the corresponding positions.

7. The high-efficiency anti-slip and stable clamp for forklift loading and unloading goods according to claim 6, characterized in that: Two protruding strips (10) are fixedly installed on one side of the L-shaped slide (3). The two protruding strips (10) have a groove (11) on one side corresponding to each other. The rack (12) has a protruding locking block (13) integrally formed at the position corresponding to the groove (11). The groove (11) and the protruding locking block (13) are slidably engaged together.

8. The high-efficiency anti-slip and stable clamp for forklift loading and unloading goods according to claim 6, characterized in that: The gear assembly includes a motor (15) and a gear (16). The motor (15) is fixedly mounted on the back of the L-shaped slide (3). The output shaft of the motor (15) extends through the L-shaped slide (3) to the space between two racks (12). The gear (16) is fixedly mounted on the output shaft of the motor (15). The gear (16) meshes with the upper and lower racks (12).

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