Step-operated liftable heavy-duty pallet box

Abstract

This utility model relates to a foot-operated, height-adjustable heavy-duty pallet box, comprising a box body and a carrying platform. The box body is fixedly mounted on the carrying platform. Multiple caster wheel lifting assemblies are provided at the bottom of the carrying platform. Each caster wheel lifting assembly includes a fixed base, a support column, a universal adjustment seat, rollers, roller lifting adjustment components, connecting rods, and a return spring. The fixed base is fixedly connected to the bottom surface of the carrying platform, the support column is fixedly connected below the fixed base, and the universal adjustment seat is rotatably connected to the fixed base. Adjustment elongated holes are provided on the mounting plates on both sides of the universal adjustment seat. The two ends of the roller's rotating shaft pass through the adjustment elongated holes. The lower ends of two connecting rods are movably connected to the two ends of the roller's rotating shaft, respectively. Connecting parts are provided on both sides of the roller lifting adjustment component, and the upper ends of the connecting rods are movably connected to the connecting parts. A pedal is provided at one end of the roller lifting adjustment component, and a rotating shaft seat is provided at the other end. This utility model's pallet box facilitates height adjustment and facilitates the handling of goods.

Description

Technical Field

[0001] This utility model relates to the field of cargo handling, and in particular to a foot-operated, liftable heavy-duty pallet box. Background Technology

[0002] Pallet boxes are commonly used tools in goods handling. Existing pallet boxes typically consist of a rectangular box body and a bottom tray with wheels at the bottom of the tray. To use existing pallet boxes, goods are placed inside the box, and the box is dragged to move the goods. However, in goods handling, equipment may need to be at different heights. Traditional trays are mostly designed with a fixed height, unable to be flexibly adjusted according to actual usage scenarios, severely limiting the ease of use and applicability of equipment or products. Therefore, developing a tray with a lifting function has significant practical importance and market demand. Utility Model Content

[0003] The purpose of this invention is to solve the problem that existing cargo handling pallets cannot be raised or lowered as needed, and to provide a foot-operated, liftable heavy-duty pallet box.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A foot-operated, liftable heavy-duty pallet box includes a box body and a carrying platform. The box body is fixedly mounted on the carrying platform. Multiple caster wheel lifting assemblies are provided at the bottom of the carrying platform. Each caster wheel lifting assembly includes a fixed base, a support column, a universal adjustment seat, rollers, roller lifting adjustment components, a connecting rod, and a return spring. The fixed base is fixedly connected to the bottom surface of the carrying platform. The support column is fixedly connected below the fixed base. The universal adjustment seat is rotatably connected to the fixed base. Mounting plates are provided on both sides of the universal adjustment seat, with cavities for accommodating the rollers between the mounting plates. The roller has an adjustment elongated hole through which both ends of its shaft pass. There are two connecting rods, the lower ends of which are movably connected to both ends of the roller's shaft. Connecting parts are provided on both sides of the roller lifting adjustment component, with the upper ends of the connecting rods movably connected to these connecting parts. A pedal is provided at one end of the roller lifting adjustment component, and a rotating shaft seat is provided at the end of the roller lifting adjustment component away from the pedal. The rotating shaft seat is rotatably connected to a universal adjustment seat via a rotating shaft. A roller height locking component is provided on the roller lifting adjustment component. The lower end of the return spring is connected to the lower part of the connecting rod, and the upper end of the return spring is connected to the universal adjustment seat.

[0006] In the above solution, the roller height locking component is a snap-locking component, a bolt locking component, or a hydraulic locking component. The roller height locking component can be selected according to design requirements. Snap-locking components are common locking components. The locking pin can be connected to the roller lifting adjustment component through connecting parts such as springs and nuts. When the pedal is rotated downwards to the correct position, the locking pin automatically inserts into the snap on the universal adjustment seat under the action of the spring, thereby locking the roller height. When it is necessary to release the roller height lock, pull the locking pin outwards to separate the locking pin from the snap. At this time, lift the pedal upwards, causing the roller lifting adjustment component to rotate upwards. When it rotates to the correct position, the locking pin automatically inserts into the snap on the universal adjustment seat under the action of the spring, thereby locking the roller height.

[0007] In the above design, the mounting base has multiple mounting holes, and the mounting base is fixedly connected to the support platform by bolts. This arrangement ensures that the mounting base is stably connected to the bottom of the support platform.

[0008] In the above design, the universal adjustment seat is rotatably connected to the fixed seat via a rotating shaft and bearings. This configuration allows the universal adjustment seat to rotate 360° horizontally relative to the fixed seat, facilitating directional adjustment.

[0009] In the above design, the bottom of the support platform is equipped with multiple base supports, each with a flat bottom and reinforcing ribs at the connection between the base support and the support platform. This design ensures that when the caster wheel lifting assembly is raised, the base supports contact the ground, providing support for the housing and the support platform. The reinforcing ribs also enhance the strength of the base supports, preventing deformation and damage.

[0010] In the above solution, omnidirectional wheel lifting assemblies are provided next to each base. With this arrangement, when the omnidirectional wheel lifting assemblies are lowered to support the bottom surface, each base can be lifted off the ground to facilitate the pushing of the pallet box.

[0011] In the above design, the box is rectangular and has a removable lid on top. The shape and size of the box can be customized as needed.

[0012] This invention offers several advantages: The foot-operated, height-adjustable heavy-duty pallet box features multiple sets of omnidirectional wheel lifting components at its bottom. These components facilitate height adjustment, allowing for easy handling of goods within the box. The wheel lifting components allow for height adjustment of the rollers by raising and lowering the foot pedal. When the pallet box needs to be moved, the foot pedals of each lifting component are lowered. This lowers the connecting rods via the lifting adjustment mechanism, causing the roller shafts to descend into the adjustment holes on the mounting plates on both sides of the adjustment seat. This lowering of the rollers also lifts the support column and the bottom support of the carrying platform off the ground, allowing the pallet box to be pushed to move goods. Once the goods are in place, the foot pedals of each lifting component are raised. As the foot pedals rise, the support column of the lifting component and the bottom support of the carrying platform are also supported on the ground, thus fixing the pallet box in place. This utility model's step-operated, height-adjustable heavy-duty pallet box can not only switch between pallet box handling and parking states, but also change the height of the pallet box, thereby changing the height of the goods inside, so as to facilitate processing by other mechanical equipment according to the operating procedures. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the foot-operated liftable heavy-duty pallet box of this utility model.

[0014] Figure 2 This is an exploded view of the foot-operated, liftable heavy-duty pallet box of this utility model.

[0015] Figure 3 This is a schematic diagram of the universal wheel lifting assembly of the foot-operated liftable heavy-duty pallet box of this utility model.

[0016] Figure 4 This is a schematic diagram of the rollers of the caster wheel lifting assembly in the lowered state.

[0017] Figure 5 This is a structural diagram showing the raised state of the rollers of the universal wheel lifting assembly.

[0018] The attached figures are labeled as follows: box body 1, box cover 11, bearing platform 2, base 21, reinforcing rib 22, universal wheel lifting assembly 3, fixed seat 31, mounting hole 311, support column 32, universal adjustment seat 33, assembly plate 331, adjustment elongated hole 332, roller 34, rotating shaft 341, roller lifting adjustment component 35, pedal 351, connecting part 352, rotating shaft seat 353, roller height locking component 354, connecting rod 36, and return spring 37. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below through embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] like Figure 1 and 2 As shown, the step-operated liftable heavy-duty pallet box of this utility model includes a box body 1 and a load-bearing platform 2.

[0021] The shape and size of the box 1 can be designed according to needs. For example, the box 1 can be designed as a cuboid shape. In order to close the box cavity, a box cover 11 can also be provided. The material of the box 1 can also be selected according to needs. For example, a high-strength, wear-resistant or corrosion-resistant box can be preferred.

[0022] The support platform 2 needs to be made of high-strength material. The size and shape of the support platform 2 are adapted to the shape and size of the bottom surface of the box 1. The bottom surface of the box 1 is fixedly connected to the support platform 2.

[0023] The bottom of the support platform 2 is provided with multiple base supports 21. The bottom of each base support 21 is a flat plate, and the connection between the base support 21 and the support platform 2 is provided with reinforcing ribs 22. With this arrangement, when the universal wheel lifting assembly is raised, the base support 21 contacts the ground, supporting the housing 1 and the support platform 2. By providing reinforcing ribs 22, the strength of the base support 21 can be enhanced, preventing deformation and damage to the base support 21.

[0024] Multiple caster wheel lifting assemblies 3 are provided at the bottom of the support platform 2. The caster wheel lifting assemblies 3 can be located at various corners of the bottom of the support platform 2. Preferably, the caster wheel lifting assemblies 3 can be installed next to each base support 21. With this arrangement, when the rollers 34 of the caster wheel lifting assembly 3 descend to support the ground, it can ensure that the base support 21 at the bottom of the support platform 2 leaves the ground.

[0025] like Figure 3As shown, each set of universal wheel lifting components 3 includes a fixed base 31, a support column 32, a universal adjustment base 33, a roller 34, a roller lifting adjustment component 35, a connecting rod 36, and a return spring 37. The fixed base 31 is fixedly connected to the bottom surface of the support platform 2. The support column 32 is fixedly connected to the bottom of the fixed base 31. The universal adjustment base 33 is rotatably connected to the fixed base 31. Mounting plates 331 are provided on both sides of the universal adjustment base 33. A cavity for accommodating the roller is provided between the mounting plates 331. Adjustment elongated holes 332 are provided on the mounting plates on both sides of the universal adjustment base 33. The two ends of the rotating shaft 341 of the roller 34 pass through the adjustment elongated holes 332. The connecting rod 36... There are two connecting rods 36, the lower ends of which are movably connected to the two ends of the rotating shaft 341 of the roller 34. Connecting parts 352 are provided on both sides of the roller lifting adjustment component 35. The upper end of the connecting rod 36 is movably connected to the connecting part 352. A pedal 351 is provided at one end of the roller lifting adjustment component 35. A rotating shaft seat 353 is provided at the end of the roller lifting adjustment component 35 away from the pedal 351. The rotating shaft seat 353 is rotatably connected to the universal adjustment seat 33 through a rotating shaft. A roller height locking component 354 is provided on the roller lifting adjustment component 35. The lower end of the return spring 37 is connected to the lower part of the connecting rod 36, and the upper end of the return spring 37 is connected to the universal adjustment seat 33.

[0026] The roller height locking component 354 can be a snap-lock, bolt-lock, or hydraulic locking component. The roller height locking component 354 can be selected according to design requirements. Snap-lock is a common locking component; the locking pin is connected to the roller lifting adjustment component via a spring and nut. When the pedal is rotated downwards to its final position, the locking pin automatically inserts into the snap on the universal adjustment seat under the action of the spring, thus locking the roller height. To release the roller height lock, pull the locking pin outwards to separate it from the snap. Then, lift the pedal upwards, causing the roller lifting adjustment component to rotate upwards. When it reaches its final position, the locking pin automatically inserts into the snap on the universal adjustment seat under the action of the spring, thus locking the roller height.

[0027] The mounting base 31 has multiple mounting holes 311, and the mounting base 31 is fixedly connected to the support platform 2 by bolts. This arrangement allows the mounting base 31 to be stably connected to the bottom of the support platform 2.

[0028] The universal adjustment seat 33 is rotatably connected to the fixed seat 31 via a rotating shaft and bearings. With this configuration, the universal adjustment seat 33 can rotate 360° horizontally relative to the fixed seat 31 to facilitate directional adjustment.

[0029] This utility model relates to a foot-operated, height-adjustable heavy-duty pallet box, such as... Figure 3-5As shown, in use, first raise the rollers of the caster wheel lifting assembly to support the bottom support of the carrying platform and the support column of the caster wheel lifting assembly on the ground, thus fixing the position of the pallet box. Then, load the goods to be transported into the box. After loading, pull out the locking pin on the roller lifting adjustment component, press the pedal, and the pedal will drive the caster wheel lifting adjustment component to descend. At the same time, it will drive the connecting rod to descend, pushing the roller's shaft to the lower end of the adjustment hole on the assembly plate, so that the support column of the caster wheel lifting assembly and the bottom support of the carrying platform are off the ground. After it is in place, insert the locking pin into the lock at the lower end to automatically lock the roller height. After all the caster wheel lifting components are adjusted, each roller is supported on the ground. At this time, the pallet box can be pushed to move the goods in the pallet box to the predetermined position. After the goods have been moved, the locking pin can be pulled out, and the pedal of the caster wheel lifting assembly can be raised. Under the pull of the return spring, the roller shaft moves to the top of the adjustment hole. After it moves into place, the locking pin is inserted into the upper lock, completing the automatic locking of the roller height. At this time, the height of the roller is higher than the height of the support column and the base. The support column of the caster wheel lifting assembly and the base of the carrying platform are both supported on the ground. The position of the pallet box is fixed, and the goods can be processed by other mechanical equipment according to the operating procedure.

[0030] 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 foot-operated, liftable heavy-duty pallet box, characterized in that: The device includes a housing and a support platform. The housing is fixedly mounted on the support platform. Multiple caster wheel lifting assemblies are located at the bottom of the support platform. Each caster wheel lifting assembly includes a fixed base, a support column, a universal adjustment seat, rollers, roller lifting adjustment components, a connecting rod, and a return spring. The fixed base is fixedly connected to the bottom surface of the support platform. The support column is fixedly connected below the fixed base. The universal adjustment seat is rotatably connected to the fixed base. Mounting plates are located on both sides of the universal adjustment seat, with cavities between the mounting plates for accommodating the rollers. Adjustment elongated holes are located on the mounting plates on both sides of the universal adjustment seat. The roller's shaft passes through adjusting holes at both ends. There are two connecting rods, with the lower ends of the two connecting rods movably connected to the two ends of the roller's shaft, respectively. Connecting parts are provided on both sides of the roller lifting adjustment component, and the upper ends of the connecting rods are movably connected to the connecting parts. A pedal is provided at one end of the roller lifting adjustment component, and a rotating shaft seat is provided at the end of the roller lifting adjustment component away from the pedal. The rotating shaft seat is rotatably connected to a universal adjustment seat via a rotating shaft. A roller height locking component is provided on the roller lifting adjustment component. The lower end of the return spring is connected to the lower part of the connecting rod, and the upper end of the return spring is connected to the universal adjustment seat.

2. The foot-operated, liftable heavy-duty pallet box according to claim 1, characterized in that: The roller height locking component is a snap-locking component, a bolt locking component, or a hydraulic locking component.

3. The foot-operated, liftable heavy-duty pallet box according to claim 1, characterized in that: The mounting base has multiple assembly holes, and the mounting base is fixedly connected to the bearing platform by bolts.

4. The foot-operated, liftable heavy-duty pallet box according to claim 1, characterized in that: The universal adjustment seat is rotatably connected to the fixed seat via a rotating shaft and bearings.

5. The foot-operated, liftable heavy-duty pallet box according to claim 1, characterized in that: The bottom of the support platform is provided with multiple base supports, the bottom of which is a flat plate, and the connection between the base support and the support platform is provided with reinforcing ribs.

6. The foot-operated, liftable heavy-duty pallet box according to claim 5, characterized in that: The base is equipped with omnidirectional wheel lifting components.

7. The foot-operated, liftable heavy-duty pallet box according to claim 1, characterized in that: The box is rectangular and has a removable cover on the top.

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