Stair climbing carrier

Abstract

The utility model relates to the technical field of carrying device, and disclose a kind of stair carrying device, including frame assembly, the frame assembly includes frame, bottom plate and wheel carrier;Limiting component, the limiting component includes two groups of moving frame and fixed plate, two groups of fixed plate between being provided with adjusting unit, the side of moving frame is provided with clamping frame;The adjusting unit includes adjusting shaft and hand wheel. By setting limiting component, adjusting unit, clamping frame and locking unit etc. component, adjusting shaft's reverse thread drives moving frame synchronous adjustment, guide rod guarantees moving smoothly, clamping frame realizes accurate fine adjustment by slide rod, locking unit realizes reliable locking by screw transmission, rubber protection pad protects goods surface, not only realizes the firm clamping of different size goods, improve the security in goods carrying process, also simplify operation process, reduce operation difficulty, avoid goods damage, improve the versatility and practicality of device.

Description

Technical Field

[0001] This utility model relates to the field of handling device technology, and in particular to a stair-climbing handling device. Background Technology

[0002] The stair-climbing transport device is a cargo transport equipment that integrates the functions of moving on flat ground and climbing stairs. It is mainly used in logistics distribution, home decoration, construction, warehousing and transshipment and other scenarios. Its core function is to solve the problems of low efficiency and high labor intensity of manual handling of goods up and down stairs.

[0003] For example, utility model application CNCN201520387479.9 discloses a screen cabinet climbing and transporting device, including a frame, a loading platform connected to the bottom of the frame, combined wheels and a drive assembly for driving the combined wheels to rotate on both sides of the bottom of the frame, a handrail frame on the top of the frame, a support frame rotatably connected to the middle section of the frame, and a support assembly rotatably provided at the bottom of the loading platform to prevent the frame from tipping backward when climbing stairs.

[0004] Existing stair-climbing handling equipment has the following drawbacks: It relies solely on a support plate to carry goods, lacking a dedicated clamping mechanism. Goods are not effectively secured after placement, and during the climbing process, vibrations from the equipment and uneven stair steps can easily cause displacement, tilting, or even slippage, leading to damage and safety hazards. Some users use ropes to secure goods to prevent them from falling, but this is cumbersome and time-consuming. The tightness of the ropes is difficult to control precisely; too loose and it fails to provide stability, while too tight a rope may crush or damage the goods. This is especially problematic when handling fragile, irregularly shaped, or heavy items, significantly impacting handling efficiency and cargo transport safety. Utility Model Content

[0005] In view of the shortcomings of the prior art, the present invention provides a stair-climbing and transporting device, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A stair-climbing transport device includes: a frame assembly comprising a chassis, a base plate, and wheel frames, the base plate being fixedly installed on one side of the chassis and perpendicular to the chassis; a handrail being fixedly installed at the top of the chassis; and a limiting assembly disposed on the outer wall of the chassis for limiting and clamping goods; the limiting assembly comprising two sets of movable frames and fixed plates, the two sets of fixed plates being fixedly installed on both sides of the chassis, the two sets of movable frames being located between the two sets of fixed plates, an adjustment unit for adjusting the movement of the movable frames being disposed between the two sets of fixed plates, and a clamping frame being disposed on one side of the movable frames; the adjustment unit comprising an adjustment shaft and a handwheel.

[0007] According to the aforementioned stair-climbing and transporting device, the wheel frame consists of two sets, which are fixedly installed on one side of the bottom of the frame. The wheel frame is triangular, and wheels are movably installed at the three ends of the wheel frame. A main shaft movably passes through the two sets of wheel frames.

[0008] According to the aforementioned stair-climbing and transporting device, the cross-section of the moving frame is L-shaped, the projection of the moving frame is U-shaped, and one end of the two sets of moving frames is symmetrically located between the two sets of fixed plates.

[0009] According to the aforementioned stair-climbing and transporting device, the adjustment unit further includes guide rods fixedly installed between two sets of fixed plates. There are two sets of guide rods, which are parallel to each other and both sets of guide rods move through the middle part of the two sets of moving frames. The two sets of guide rods are perpendicular to the middle part of the moving frames.

[0010] According to the aforementioned stair-climbing and transporting device, the adjusting shaft is movably installed between two sets of fixed plates. A set of reverse threads is provided on the outer wall of the adjusting shaft. Both ends of the adjusting shaft movably pass through the middle part of the corresponding moving frame. The adjusting shaft and the two sets of moving frames are connected by threads. The handwheel is located on the outside of the two sets of fixed plates and is fixedly connected to one end of the corresponding adjusting shaft.

[0011] According to the aforementioned stair-climbing and transporting device, there are two sets of clamping frames. Rubber protective pads are attached and fixed to the side of the two sets of clamping frames near the vehicle frame. Two sets of sliding rods are fixedly installed at one end of the clamping frame. The two sets of sliding rods move through the two ends of the corresponding moving frame, and the sliding rods drive the clamping frame to slide along the direction of the moving frame.

[0012] According to the aforementioned stair-climbing transport device, a locking unit for locking is provided at one end of the outer wall of the movable frame near the sliding rod. The locking unit includes a fixed block, a threaded sleeve, and a threaded rotating rod. A rectangular groove is provided at the center of the fixed block, and a stop block is movably engaged in the rectangular groove. One side of the stop block is arc-shaped. The threaded sleeve is fixedly connected to the fixed block. The threaded rotating rod movably passes through the rectangular groove of the threaded sleeve and the fixed block and is movably connected to the stop block. The threaded rotating rod and the threaded sleeve are threadedly connected.

[0013] This utility model provides a stair-climbing and transporting device. It has the following beneficial effects: (1) By setting up components such as frame, base plate, wheel frame, handrail and main shaft, the frame, base plate and wheel frame form an integrated stable frame. The wheel frame adopts a triangular structure and works with the main shaft to realize the synchronous operation of two sets of wheels. The handrail provides convenient control fulcrum for the operator. It not only ensures the overall load-bearing capacity and structural stability of the device, but also realizes flexible turning on flat ground and smooth operation during the climbing process, improves the safety of operation and the efficiency of handling, and reduces the risk of tipping during the handling of goods.

[0014] (2) By setting up a limiting component, an adjustment unit, a clamping frame and a locking unit, the reverse thread of the adjustment shaft drives the moving frame to adjust synchronously, the guide rod ensures smooth movement, the clamping frame achieves precise fine adjustment through the slide rod, the locking unit achieves reliable locking through the thread transmission, and the rubber protective pad protects the surface of the goods. It not only achieves stable clamping of goods of different sizes and improves the safety of goods handling, but also simplifies the operation process, reduces the difficulty of operation, avoids damage to goods, and improves the versatility and practicality of the device. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a stair-climbing and transporting device according to the present invention; Figure 2 This is a front view schematic diagram of a stair-climbing and transporting device according to the present invention; Figure 3 This is a three-dimensional structural diagram of the limiting component of a stair-climbing and transporting device according to the present invention; Figure 4 This is a schematic diagram showing the connection relationship between the moving frame and the clamping frame of the stair-climbing and transporting device of this utility model; Figure 5 This is a cross-sectional structural diagram of the locking unit of a stair-climbing transport device according to the present invention.

[0016] Legend: 10. Frame; 11. Handrail; 12. Base plate; 13. Wheel frame; 14. Wheel; 15. Limiting assembly; 16. Moving frame; 17. Fixing plate; 18. Adjusting shaft; 19. Guide rod; 20. Handwheel; 21. Clamping frame; 22. Locking unit; 23. Slide rod; 24. Fixing block; 25. Threaded sleeve; 26. Threaded rotating rod; 27. Abutment block. Detailed Implementation The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] Please see Figure 1-5As shown, this utility model is a stair-climbing transport device, including a frame assembly. The frame assembly includes a chassis 10, a base plate 12, and wheel frames 13. The base plate 12 is fixedly installed on one side of the chassis 10, and the base plate 12 and the chassis 10 are perpendicular to each other. A handrail 11 is fixedly installed on the top of the chassis 10. There are two sets of wheel frames 13, which are fixedly installed on one side of the bottom of the chassis 10. The wheel frames 13 are triangular, and wheels 14 are movably installed at the three ends of each wheel frame 13. A main shaft movably passes through the two sets of wheel frames 13. By setting the integrated design of the chassis 10, base plate 12, and wheel frames 13, a stable and high-load-bearing frame foundation is formed. The handrail 11 provides a convenient control point for the operator, making it easier for the operator to control the direction of the device during movement on flat ground and stair climbing, thus improving operational safety and flexibility.

[0018] like Figure 1-2 As shown, the limiting component 15 is installed on the outer wall of the frame 10 for limiting and clamping the goods. The limiting component 15 includes two sets of movable frames 16 and fixed plates 17. The two sets of fixed plates 17 are fixedly installed on both sides of the frame 10, and the two sets of movable frames 16 are located between the two sets of fixed plates 17. The cross-section of the movable frames 16 is L-shaped, and the projection of the movable frames 16 is U-shaped. One end of the two sets of movable frames 16 is symmetrically located between the two sets of fixed plates 17. By setting the limiting component 15, the goods on the bottom plate 12 can be specifically limited and clamped, preventing displacement and slippage of the goods during handling from the source. The two sets of fixed plates 17 are fixed to one side of the frame 10, providing a stable installation and guiding foundation for the movable frames 16.

[0019] like Figure 3As shown, an adjustment unit for moving and adjusting the movable frame 16 is provided between the two sets of fixed plates 17. A clamping frame 21 is provided on one side of the movable frame 16. The adjustment unit includes an adjustment shaft 18 and a handwheel 20. The adjustment unit also includes guide rods 19 fixedly installed between the two sets of fixed plates 17. There are two sets of guide rods 19, which are parallel to each other and both sets of guide rods 19 move through the middle part of the two sets of movable frames 16. The two sets of guide rods 19 are perpendicular to the middle part of the movable frame 16. The adjustment shaft 18 is movably installed between the two sets of fixed plates 17. A set of reverse threads is opened on the outer wall of the adjustment shaft 18. Both ends of the adjustment shaft 18 move through the middle part of the corresponding movable frame 16. The adjustment shaft 18 and the two sets of movable frames 16 are connected by threads. The handwheel 20 is located on the outside of the two sets of fixed plates 17 and is fixedly connected to one end of the corresponding adjustment shaft 18. Two sets of guide rods 19 movably pass through the movable frame 16, serving as a limit and guide for the movement of the movable frame 16, preventing jamming or offset during movement and ensuring smooth movement. A set of reverse threads is provided on the outer wall of the adjusting shaft 18, and both ends of the adjusting shaft 18 movably pass through the middle of the corresponding movable frame 16. The adjusting shaft 18 and the two sets of movable frames 16 are connected by threads. The rotation of the adjusting shaft 18 enables the two sets of movable frames 16 to move synchronously in opposite directions without separate adjustment, greatly improving the adjustment efficiency of the limit clamping and ensuring consistent adjustment accuracy of the two sets of movable frames 16. A handwheel 20 is provided to convert the rotation adjustment of the adjusting shaft 18 into convenient manual operation, requiring no additional tools and reducing the difficulty of operation.

[0020] like Figure 4-5As shown, there are two sets of clamping frames 21. Rubber protective pads are attached and fixed to the side of the two sets of clamping frames 21 near the frame 10. Two sets of sliding rods 23 are fixedly installed at one end of the clamping frame 21. The two sets of sliding rods 23 pass through the two ends of the corresponding moving frame 16. The sliding rods 23 drive the clamping frame 21 to slide along the direction of the moving frame 16. A locking unit 22 for locking is provided on the outer wall of the moving frame 16 near the sliding rod 23. The locking unit 22 includes a fixing block 24, a threaded sleeve 25 and a threaded rotating rod 26. A rectangular groove is opened at the center of the fixing block 24. A stop block 27 is movably engaged in the rectangular groove. One side of the stop block 27 is arc-shaped. The threaded sleeve 25 is fixedly connected to the fixing block 24. The threaded rotating rod 26 passes through the rectangular groove of the threaded sleeve 25 and the fixing block 24 and is movably connected to the stop block 27. The threaded rotating rod 26 and the threaded sleeve 25 are threadedly connected. The design of the slide bar 23 driving the clamping frame 21 to slide along the moving frame 16 allows the position of the clamping frame 21 to be adjusted according to the size of the goods. The locking unit 22 is driven by a threaded transmission. Rotating the threaded rotating rod 26 pushes the abutment 27 to press the slide bar 23, thus restricting the sliding of the slide bar 23 and achieving reliable locking of the clamping frame 21. The locking structure is simple and highly stable, effectively preventing the clamping frame 21 from loosening due to vibration during handling and ensuring the stability of the goods after clamping. The arc design of the abutment 27 increases the contact area with the slide bar 23, improves the uniformity of pressure transmission during locking, avoids excessive local pressure that could damage the slide bar 23, and enhances the locking friction.

[0021] The implementation principle of this utility model of a stair-climbing transport device is as follows: The operator drives the adjusting shaft 18 to rotate by turning the handwheel 20. Using the reverse thread on the outer wall of the adjusting shaft 18, the two moving frames 16 move synchronously towards each other along the guide rod 19, initially adjusting them to a position close to both sides of the goods. Then, the clamping frame 21 is pushed, and the clamping frame 21 slides along the moving frame 16 through the slide rod 23, so as to achieve precise contact between the clamping frame 21 and the surface of the goods. Finally, the threaded rotating rod 26 is rotated to push the abutment 27 to press the slide rod 23, completing the locking of the position of the clamping frame 21 and ensuring that the goods are firmly clamped.

[0022] 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 claimed utility model.

Claims

1. A stair-climbing transport device, characterized in that, include: The frame assembly includes a frame (10), a base plate (12) and a wheel frame (13). The base plate (12) is fixedly installed on one side of the frame (10). The base plate (12) and the frame (10) are perpendicular to each other. A handrail (11) is fixedly installed on the top of the frame (10). Limiting component (15), which is disposed on the outer wall of the frame (10) for limiting and clamping the goods; The limiting component (15) includes two sets of movable frames (16) and fixed plates (17). The two sets of fixed plates (17) are fixedly installed on both sides of the frame (10). The two sets of movable frames (16) are located between the two sets of fixed plates (17). An adjustment unit for moving and adjusting the movable frames (16) is provided between the two sets of fixed plates (17). A clamping frame (21) is provided on one side of the movable frame (16). The adjustment unit includes an adjustment shaft (18) and a handwheel (20).

2. The stair-climbing transport device according to claim 1, characterized in that: The wheel frame (13) consists of two sets. The two sets of wheel frames (13) are fixedly installed on one side of the bottom end of the frame (10). The wheel frame (13) is triangular. Wheels (14) are movably installed at the three ends of the wheel frame (13). A main shaft movably passes through the two sets of wheel frames (13).

3. The stair-climbing transport device according to claim 1, characterized in that: The cross-section of the movable frame (16) is L-shaped, and the projection of the movable frame (16) is U-shaped. One end of the two sets of movable frames (16) is symmetrically located between the two sets of fixed plates (17).

4. The stair-climbing transport device according to claim 1, characterized in that: The adjustment unit also includes guide rods (19) fixedly installed between two sets of fixed plates (17). There are two sets of guide rods (19), which are parallel to each other. Both sets of guide rods (19) pass through the middle part of the two sets of moving frames (16), and the two sets of guide rods (19) are perpendicular to each other.

5. The stair-climbing transport device according to claim 1, characterized in that: The adjusting shaft (18) is movably installed between two sets of fixed plates (17). A set of reverse threads is provided on the outer wall surface of the adjusting shaft (18). Both ends of the adjusting shaft (18) movably pass through the middle part of the corresponding moving frame (16). The adjusting shaft (18) and the two sets of moving frames (16) are connected by threads. The handwheel (20) is located outside the two sets of fixed plates (17) and is fixedly connected to one end of the corresponding adjusting shaft (18).

6. The stair-climbing transport device according to claim 1, characterized in that: The clamping frame (21) consists of two sets. Rubber protective pads are attached and fixed to the side of the clamping frame (21) near the frame (10). Two sets of sliding rods (23) are fixedly installed at one end of the clamping frame (21). The two sets of sliding rods (23) move through the two ends of the corresponding moving frame (16). The sliding rods (23) drive the clamping frame (21) to slide along the direction of the moving frame (16).

7. The stair-climbing transport device according to claim 1, characterized in that: The outer wall of the movable frame (16) near the sliding rod (23) is provided with a locking unit (22) for locking. The locking unit (22) includes a fixed block (24), a threaded sleeve (25) and a threaded rotating rod (26). A rectangular groove is provided at the center of the fixed block (24). A stop block (27) is movably engaged in the rectangular groove. One side of the stop block (27) is arc-shaped. The threaded sleeve (25) is fixedly connected to the fixed block (24). The threaded rotating rod (26) movably passes through the rectangular groove of the threaded sleeve (25) and the fixed block (24) and is movably connected to the stop block (27). The threaded rotating rod (26) and the threaded sleeve (25) are threadedly connected.

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