A portable item lifting device

Abstract

The utility model relates to mechanical engineering technical field discloses a portable equipment of taking out, including connecting seat, and the bottom of connecting seat is equipped with support assembly, and the top of connecting seat is rotatably connected with rotary seat, and the upper inside of rotary seat is hinged with sleeve rod, and the inboard of sleeve rod is slidably installed with telescopic link, and the one end of telescopic link is connected with handle outside sleeve rod, and the one end of sleeve rod is equipped with the fixed mechanism of being connected with telescopic link close to handle, and the one end of sleeve rod is connected with the hook away from handle, and the hook is connected with clamping assembly through chain, and the fixed mechanism includes fixed box, and the inboard of fixed box is fixedly installed with sleeve rod, and the inside of fixed box is equipped with the push board symmetry, and the opposite inboard wall of push board is equipped with the clamping block symmetry, the utility model discloses through the sliding adjustment of sleeve rod and telescopic link and the fixed mechanism adjustment operating arm, and the stable clamping structure of collocating support rod hinged folding structure and X -shaped hinged rod, promote use convenience and scene adaptability, guarantee the reliability and portability of carrying, and adapt to agricultural production and warehousing logistics scene.

Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering technology, and in particular to a portable lifting device. Background Technology

[0002] In agricultural production and warehousing logistics, silage bales, as important carriers for storing green fodder, are typically large and heavy. Manual handling is not only inefficient but also prone to causing physical exhaustion and even injury to operators. Portable lifting devices, with their advantages of portability and labor-saving, have become key tools for assisting in the handling of silage bales. For example, through the combination of brackets, connecting frames, support rods, hooks, chains, and scissor clamping structures, lever principles are used to pull the chain to tighten the clamping structure, thereby clamping and lifting the silage bales, effectively reducing the labor intensity of silage bale handling.

[0003] However, existing portable lifting devices used for transporting silage bales typically have fixed-length support rods that cannot be flexibly adjusted to meet actual usage needs. This makes it difficult for operators to change the lever arm by adjusting the rod length during operation. When greater effort-saving effect is required, the fixed-length support rod may increase the difficulty of operation due to insufficient lever arm. When the working space is relatively narrow, the longer support rod may affect operation due to its lack of flexibility, greatly limiting the ease of use and adaptability of the equipment. Utility Model Content

[0004] In view of the fact that the existing portable lifting equipment for transporting silage bales has a fixed support rod length and cannot be adjusted to change the operating lever arm according to the usage requirements, resulting in insufficient operational convenience and scene adaptability, this utility model is proposed.

[0005] To solve the above technical problems, this utility model provides the following technical solution: a portable lifting device, including a connecting seat, a support assembly at the bottom of the connecting seat, a rotating seat rotatably connected to the top of the connecting seat, a sleeve rod hinged to the upper part of the rotating seat, a telescopic rod slidably installed on the inner side of the sleeve rod, and a handle connected to one end of the telescopic rod outside the sleeve rod, a fixing mechanism connected to the telescopic rod at the end of the sleeve rod near the handle, and a hook connected to the end of the sleeve rod away from the handle, the hook being connected to a clamping assembly via a chain;

[0006] The fixing mechanism includes a fixing box, which is fixedly installed on the outside of the sleeve rod. The fixing box has push plates symmetrically arranged inside, and the push plates have locking blocks symmetrically arranged opposite the inner side wall. One end of the locking block passes through the side wall of the sleeve rod and is inserted into a hole opened on the outer wall of the telescopic rod. There are several holes.

[0007] As a preferred embodiment, the fixing mechanism further includes fixing blocks symmetrically arranged between push plates and fixedly connected to the push plates. An extrusion plate is provided between the fixing blocks, and sliders are connected to both ends of the extrusion plate. A groove adapted to the slider is opened on the side of the fixing block near the extrusion plate. A spring is provided between the two fixing blocks and fixedly connected to the fixing blocks. A push rod is provided on the top of the extrusion plate, and the upper end of the push rod extends outside the fixing box.

[0008] As a preferred embodiment, the fixing box is symmetrically provided with guide rails, and the guide rails pass through the push plate, and the push plate is slidably connected to the guide rails.

[0009] As a preferred embodiment, the fixing block is a right-angled trapezoidal structure, the extrusion plate is an isosceles trapezoidal shape, the slider has a T-shaped cross-section, and the spring is located below the extrusion plate.

[0010] As a preferred embodiment, the support assembly includes a plurality of support rods, which are symmetrically arranged circumferentially on the outside of the connecting seat and are hinged to the connecting seat. A fixing sleeve is fitted on the outside of each support rod and is fixedly connected to the support rod. A threaded post is provided on one side of the fixing sleeve, and a fixing rod is provided between two adjacent threaded posts. Nuts are slidably fitted on both ends of the fixing rod and rotate relative to each other around the fixing rod. The nuts are threadedly connected to the threaded posts.

[0011] As a preferred embodiment, the lower end of the support rod is hinged to a support, and the bottom surface of the support is serrated.

[0012] As a preferred embodiment, the clamping assembly includes an X-shaped hinge rod, with a chain connected to both ends of the upper part of the X-shaped hinge rod and the chain being hung at a hook. Arc-shaped rods are connected to both ends of the lower part of the X-shaped hinge rod, and an L-plate is fixedly connected to the lower end of the arc-shaped rod.

[0013] Compared with the prior art, the present invention has at least the following beneficial effects:

[0014] 1. This utility model utilizes the sliding cooperation between the sleeve rod and the telescopic rod, along with a fixing mechanism consisting of a fixed box, a push plate, a locking block, and a socket. This allows for flexible adjustment of the overall length of the sleeve rod and telescopic rod combination to change the operating lever arm. The length can be extended when greater effort-saving effect is needed, and shortened when the working space is narrow, effectively improving the ease of use and adaptability of the equipment. This solves the operational problems caused by the fixed length of the support rod in existing equipment.

[0015] 2. The support rod and connecting seat of this utility model are hinged together, and the detachable connection structure of the fixing sleeve, threaded column, fixing rod and nut allows the support component to be quickly folded and stored. At the same time, the X-shaped hinge rod, together with the clamping structure of the arc rod and L plate, can stably fix the silage bales, which not only ensures the reliability of handling, but also improves the portability of the equipment, and further adapts to the use needs of agricultural production and warehousing logistics scenarios. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a partial cross-sectional structural diagram of the sleeve rod, telescopic rod, and fixing box of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure between the connecting seat and the support rod of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure between the push plate and the extrusion plate of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Connecting seat; 2. Rotating seat; 3. Sleeve rod; 4. Telescopic rod; 5. Hook; 6. Chain; 7. X-shaped hinge rod; 8. Arc rod; 9. L-plate; 10. Fixing box; 11. Push plate; 12. Fixing block; 13. Extrusion plate; 14. Slider; 15. Push rod; 16. Slide groove; 17. Spring; 18. Guide rail; 19. Locking block; 20. Support rod; 21. Support; 22. Fixing sleeve; 23. Threaded column; 24. Fixing rod; 25. Nut; 26. Insertion hole. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Reference Figure 1 - Figure 4 As shown, a portable lifting device is provided, including a connecting base 1, a support component at the bottom of the connecting base 1, a rotating base 2 rotatably connected to the top of the connecting base 1, a sleeve rod 3 hinged to the upper part of the rotating base 2, a telescopic rod 4 slidably installed on the inner side of the sleeve rod 3, and a handle connected to one end of the telescopic rod 4 outside the sleeve rod 3. A fixing mechanism connected to the telescopic rod 4 is provided at the end of the sleeve rod 3 near the handle, and a hook 5 is connected to the end of the sleeve rod 3 away from the handle. The hook 5 is connected to a clamping component through a chain 6. The overall length can be adjusted by the sliding cooperation of the sleeve rod 3 and the telescopic rod 4, flexibly changing the operating lever arm to adapt to different working scenarios. At the same time, the rotating base 2 can drive the whole to rotate and adjust the direction, improving the operational flexibility.

[0024] The fixing mechanism includes a fixing box 10, which is fixedly installed on the outside of the sleeve rod 3. The fixing box 10 has push plates 11 symmetrically arranged inside, and push plates 11 have locking blocks 19 symmetrically arranged opposite the inner side wall. One end of the locking block 19 passes through the side wall of the sleeve rod 3 and is inserted into the insertion hole 26 opened on the outer wall of the telescopic rod 4. There are several insertion holes 26. By cooperating with the locking block 19 and the insertion holes 26 at different positions, the telescopic rod 4 can be fixed at multiple lengths to meet different labor-saving needs. The fixing method is simple and reliable, and ensures the structural stability during operation.

[0025] In this example, the fixing mechanism also includes fixing blocks 12, which are symmetrically arranged between push plates 11 and fixedly connected to push plates 11. An extrusion plate 13 is provided between the fixing blocks 12, and sliders 14 are connected to both ends of the extrusion plate 13. A groove 16 adapted to slider 14 is opened on the side of the fixing block 12 near the extrusion plate 13. A spring 17 is provided between the two fixing blocks 12 and fixedly connected to the fixing blocks 12. A push rod 15 is provided on the top of the extrusion plate 13, and the upper end of the push rod 15 extends to the outside of the fixing box 10. The telescopic rod 4 can be quickly unlocked by pressing down the push rod 15. After release, the spring 17 can drive the structure to automatically reset and lock. The operation is convenient and efficient, without complicated steps, reducing the difficulty of operation for operators.

[0026] In this example, the fixed box 10 is symmetrically provided with guide rails 18, and the guide rails 18 pass through the push plate 11. The push plate 11 is slidably connected to the guide rails 18. The guide rails 18 can accurately guide and limit the sliding direction of the push plate 11, avoid the block 19 from shifting and affecting the locking effect, and improve the motion stability and service life of the fixing mechanism.

[0027] In this example, the fixed block 12 is a right trapezoidal structure, the extrusion plate 13 is an isosceles trapezoidal shape, the slider 14 has a T-shaped cross section, and the spring 17 is located below the extrusion plate 13. The right trapezoidal fixed block 12 and the isosceles trapezoidal extrusion plate 13 cooperate to convert the vertical pressure of the extrusion plate 13 into the horizontal thrust of the fixed block 12, resulting in high transmission efficiency. The T-shaped slider 14 can prevent it from falling off during sliding, further ensuring the reliability of the structure.

[0028] In this example, the support assembly includes several support rods 20. These support rods 20 are symmetrically arranged around the outside of the connecting seat 1 and are hinged to the connecting seat 1. A fixing sleeve 22 is fitted around the outside of each support rod 20 and is fixedly connected to the support rod 20. A threaded post 23 is provided on one side of the fixing sleeve 22, and a fixing rod 24 is provided between two adjacent threaded posts 23. Nuts 25 are slidably fitted at both ends of the fixing rod 24 and can rotate relative to the fixing rod 24 so that the nuts 25 can rotate and slide on the fixing rod 24, facilitating disassembly and threaded connection of the nuts 25 to the threaded posts 23. The symmetrically distributed support rods 20 provide stable support. The hinged structure, combined with the detachable connection of the threaded posts 23, fixing rods 24, and nuts 25, facilitates quick folding and storage, reduces the space occupied by the equipment, and improves portability.

[0029] In this example, the lower end of the support rod 20 is hinged to a support 21, and the bottom surface of the support 21 is serrated. The serrated support 21 can increase the friction with the ground and prevent the equipment from sliding during operation. The hinged design allows the support 21 to adapt to uneven ground and ensure the stability of the equipment placement.

[0030] In this example, the clamping assembly includes an X-shaped hinge rod 7. A chain 6 is connected to both ends of the upper part of the X-shaped hinge rod 7, and the chain 6 is hung at the hook 5. Arc-shaped rods 8 are connected to both ends of the lower part of the X-shaped hinge rod 7, and an L-plate 9 is fixedly connected to the lower end of the arc-shaped rod 8. The X-shaped hinge rod 7 can be tightened synchronously by pulling the chain 6. Together with the arc-shaped rods 8 and the L-plate 9, it can form a stable clamp for silage bales, preventing them from falling off during handling. The clamping range is adapted to silage bales of different sizes, improving the versatility of the equipment.

[0031] During use, firstly, by adjusting the support assembly, the support rod 20 is unfolded and fixed using the fixing sleeve 22, threaded post 23, fixing rod 24, and nut 25, so that the support 21 provides stable support by contacting the ground through its serrated bottom surface; the push rod 15 of the fixing mechanism is pressed down, pushing the extrusion plate 13 to drive the slider 14 to slide in the slide groove 16, squeezing the right-angled trapezoidal fixing block 12 to drive the push plate 11 to slide outward along the guide rail 18, so that the locking block 19 disengages from the insertion hole 26 on the telescopic rod 4, and the telescopic rod 4 is pulled out to cooperate with the sleeve rod 3 to adjust to the appropriate length. After releasing the push rod 15, the spring 17 is released due to... The reverse force generated by the tensile deformation drives the structure to reset, and the locking block 19 is locked into the corresponding insertion hole 26 to complete the fixation, realizing the adjustment of the operating lever arm; the arc rod 8 and L plate 9 of the clamping component are placed on the outside of the silage bale, and the handle of the telescopic rod 4 is pressed down, so that the sleeve rod 3 rotates around the hinge with the rotating seat 2. Through the lever principle, the hook 5 pulls the chain 6, which in turn pulls the upper two ends of the X-shaped hinge rod 7, so that the lower end of the X-shaped hinge rod 7 drives the arc rod 8 and L plate 9 to tighten and clamp the silage bale; by rotating the rotating seat 2 relative to the connecting seat 1, the clamping direction can be adjusted to complete the stable handling of the silage bale.

[0032] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A portable lifting device, comprising a connecting base (1), characterized in that: The bottom of the connecting seat (1) is provided with a support component, and the top of the connecting seat (1) is rotatably connected with a rotating seat (2). A sleeve rod (3) is hinged inside the upper part of the rotating seat (2). A telescopic rod (4) is slidably installed on the inner side of the sleeve rod (3), and one end of the telescopic rod (4) is connected to a handle outside the sleeve rod (3). The end of the sleeve rod (3) near the handle is provided with a fixing mechanism connected to the telescopic rod (4). The end of the sleeve rod (3) away from the handle is connected with a hook (5). The hook (5) is connected to a clamping component through a chain (6). The fixing mechanism includes a fixing box (10), which is fixedly installed on the outside of the sleeve rod (3). The fixing box (10) is symmetrically provided with push plates (11), and the push plates (11) are symmetrically provided with locking blocks (19) on the inner sidewall. One end of the locking block (19) passes through the sidewall of the sleeve rod (3) and is inserted into the insertion hole (26) opened on the outer wall of the telescopic rod (4). There are several insertion holes (26).

2. The portable lifting device according to claim 1, characterized in that: The fixing mechanism also includes fixing blocks (12), which are symmetrically arranged between push plates (11) and fixedly connected to push plates (11). An extrusion plate (13) is provided between the fixing blocks (12), and sliders (14) are respectively connected to both ends of the extrusion plate (13). A groove (16) adapted to the slider (14) is provided on the side of the fixing block (12) near the extrusion plate (13). A spring (17) is provided between the two fixing blocks (12) and fixedly connected to the fixing block (12). A push rod (15) is provided on the top of the extrusion plate (13), and the upper end of the push rod (15) extends to the outside of the fixing box (10).

3. A portable lifting device according to claim 2, characterized in that: The fixed box (10) is symmetrically provided with guide rails (18), and the guide rails (18) pass through the push plate (11). The push plate (11) and the guide rails (18) are slidably connected.

4. A portable lifting device according to claim 3, characterized in that: The fixing block (12) is a right trapezoidal structure, the extrusion plate (13) is an isosceles trapezoid, the slider (14) has a T-shaped cross section, and the spring (17) is located below the extrusion plate (13).

5. A portable lifting device according to claim 2, characterized in that: The support assembly includes a support rod (20), and there are several support rods (20). The several support rods (20) are symmetrically arranged on the outside of the connecting seat (1) and the support rods (20) are hinged to the connecting seat (1). A fixing sleeve (22) is sleeved on the outside of the support rod (20) and the fixing sleeve (22) is fixedly connected to the support rod (20). A threaded post (23) is provided on one side of the fixing sleeve (22), and a fixing rod (24) is provided between two adjacent threaded posts (23). Nuts (25) are slidably sleeved on both ends of the fixing rod (24) and the nuts (25) rotate relative to the fixing rod (24). The nuts (25) are threadedly connected to the threaded posts (23).

6. A portable lifting device according to claim 5, characterized in that: The lower end of the support rod (20) is hinged to a support (21), and the bottom surface of the support (21) is serrated.

7. A portable lifting device according to claim 2, characterized in that: The clamping assembly includes an X-shaped hinge rod (7), with a chain (6) connected to both ends of the X-shaped hinge rod (7), and the chain (6) is hung on the hook (5). Arc rods (8) are connected to both ends of the X-shaped hinge rod (7), and an L-plate (9) is fixedly connected to the lower end of the arc rod (8).

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