Double-drawing heavy hoisting mechanism device

Abstract

The utility model relates to a double-drawing heavy hoisting mechanism device, which effectively solves the problems that the loading and unloading of a large unit and a cargo box need the assistance of multiple persons at present, time and labor are wasted, the safety coefficient is low, and the use scene is limited. According to the double-drawing heavy hoisting mechanism device, the first sliding frame can be pulled outwards to the maximum position, then the second sliding frame is pulled outwards to the designated position, the hoisting end of the winch structure is connected with a heavy object, the heavy object is hoisted by rotating the winch structure to leave the first sliding frame, and then the first sliding frame is withdrawn again; a heavy object can be lowered to the ground or the moving platform through the winch structure, similarly, the heavy object can be lifted from the ground or the moving platform and placed on the first sliding frame, occupied space is saved, safe and rapid loading and unloading of the heavy object can be achieved through single-person operation, safety and convenience are improved, and the work efficiency is improved. The device is suitable for large vehicles to get on and off heavy objects, does not need an electric power system, and is convenient to use in different scenes.

Description

Technical Field

[0001] This utility model belongs to the field of hoisting mechanism technology, specifically relating to a double-pull-out heavy-duty hoisting mechanism device. Background Technology

[0002] In the field of special vehicle-mounted applications, automatic lifting equipment is required for loading and unloading heavy-duty generators. However, when vehicles are traveling in deserts, swamps, or other off-road conditions without mains power, the automatic lifting equipment cannot operate. In such cases, multiple people are required to work together to move the generator. During operation, the operator must follow the generator. It is not easy to operate before the generator is removed, and it is highly dangerous for personnel to be under the generator. Furthermore, it is only suitable for lifting light generator sets and can only be installed on small vehicles.

[0003] Currently, loading and unloading larger units and cargo boxes requires the assistance of multiple people, which is time-consuming, labor-intensive, and has a low safety factor. Moreover, existing hoisting equipment is cumbersome to operate, and hoisting and pulling cannot be used independently, limiting its application to small vehicles. Safe, efficient, and rapid loading and unloading of units or cargo boxes has become the main research direction for special vehicles. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a double-pull-out heavy-duty lifting mechanism. This double-pull-out heavy-duty lifting mechanism can achieve safe and fast loading and unloading of heavy objects by a single person, which improves safety and convenience. It is suitable for use when loading and unloading heavy objects from large vehicles, and does not require an electric system, making it easy to use in different scenarios.

[0005] A double-pull-out heavy-duty hoisting mechanism includes a mounting frame and a base. The base is fixedly connected to the bottom of the mounting frame, and a winch structure is provided on the side of the base. A first slide rail is fixedly installed at the bottom of the base, and a first sliding frame is slidably connected to the inside of the first slide rail. A second slide rail is provided above the first slide rail, and a second sliding frame is slidably connected to the inside of the second slide rail. A hanger is fixedly connected to the middle of the upper surface of the second sliding frame, and the movable end of the winch structure passes through the inside of the hanger. A first limiting mechanism for limiting the movement of the first slide rail is provided on the lower surface, and a second limiting mechanism for limiting the movement of the second slide rail is provided on the upper surface.

[0006] Preferably, the winch structure includes a fixed frame, a winch, a hand crank, and a rope. The fixed frame is fixedly connected to the side of the base, and the winch is mounted on the upper surface of the fixed frame. The hand crank passes through the inside of the winch and is connected to it for transmission. The rope is wound around the outside of the winch, and its top end passes through the inside of the hanger.

[0007] Preferably, both ends of the inside of the hanger are rotatably connected to fixed pulleys and the rope is lapped on the top of the two fixed pulleys, and the end of the rope away from the winch is fixedly connected to a hook.

[0008] Preferably, the ends of the first and second slide rails away from the winch structure are both fixedly connected to a fixing block, and the side of the fixing block is rotatably connected to a pulley. The first and second slide rails are vertically corresponding and there are two of each. The two first and second slide rails are symmetrically arranged with the vertical center line of the base as the axis of symmetry.

[0009] Preferably, both sides of the first sliding frame and the bottom of both sides of the second sliding frame near the winch structure are fixedly connected to a fixing block, and the side of the fixing block is rotatably connected to a pulley. The pulleys inside the first slide rail and the second slide rail at the ends away from the winch structure are respectively rolledly connected to the sides of the first sliding frame and the second sliding frame. The pulleys on both sides of the first sliding frame and the second sliding frame near the winch structure are respectively rolledly connected to the inside of the first slide rail and the second slide rail.

[0010] Preferably, the first limiting mechanism includes a first limiting rod, which is threaded through the lower surface of the first slide rail and its top end passes through the interior of the first slide rail and can abut against the first sliding frame. The second limiting mechanism includes a positioning plate and a second limiting rod. Positioning plates are fixedly connected to the upper surface of the second slide rail and the portion of the second sliding frame parallel to the upper surface of the second slide rail. The second limiting rod is threaded through the side of the positioning plate on the upper surface of the second slide rail and can pass through the positioning plate on the second sliding frame.

[0011] The beneficial effects of the above technical solution are as follows:

[0012] This double-extension heavy-duty lifting mechanism, through the configuration of a winch structure, a first sliding frame, and a second sliding frame, allows the first sliding frame to be pulled outward to its maximum position, and then the second sliding frame to be pulled outward to a designated position. This connects the lifting end of the winch structure to the load, and the load is lifted off the first sliding frame by rotating the winch structure. The first sliding frame is then retracted, and the load can be lowered to the ground or a mobile platform via the winch structure. Similarly, the load can be lifted from the ground or a mobile platform and placed on the first sliding frame, saving space. This device can be operated by a single person to achieve safe and rapid loading and unloading of heavy objects, improving safety and convenience. It is suitable for use when loading and unloading heavy objects from large vehicles and does not require an electric system, making it suitable for use in various scenarios. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a frontal view of the present invention.

[0015] Figure 3 This is a side view diagram of the present invention;

[0016] Figure 4 This is a schematic diagram of the winch structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the heavy load loading state of this utility model;

[0018] Figure 6 This is a schematic diagram of the internal structure of the mounting bracket of this utility model;

[0019] Figure 7 This is a schematic diagram of the first and second slide rails of this utility model.

[0020] In the diagram: 1. Mounting bracket; 2. Base; 3. First slide rail; 4. First sliding frame; 5. Second slide rail; 6. Second sliding frame; 7. Hanger; 8. Fixing frame; 9. Winch; 10. Hand crank; 11. Rope; 12. Fixed pulley; 13. Hook; 14. Fixing block; 15. Pulley; 16. First limit rod; 17. Positioning plate; 18. Second limit rod. Detailed Implementation

[0021] The foregoing and other technical contents, features and effects of this utility model are described in conjunction with the appendix below. Figures 1 to 7 The embodiments are described in detail below.

[0022] This embodiment provides a double-pull-out heavy-duty hoisting mechanism device, as shown in the attached figure. Figure 1-7 As shown, the device includes a mounting frame 1 and a base 2. The mounting frame 1 can be used to install the device on special vehicles, or it can be used as a component for modified vehicles. It can be installed on the outside or inside of a container, or on a subframe, as a mechanism for quickly loading and unloading generators or cargo boxes. The base 2 is fixedly connected to the bottom of the mounting frame 1, and a winch structure is provided on the side of the base 2. The generator or cargo box can be placed on the base 2. The winch structure includes a fixed frame 8, a winch 9, a hand crank 10, and a rope 11. The fixed frame 8 is fixedly connected to the side of the base 2, and the winch 9 is installed on the upper surface of the fixed frame 8. The winch 9 is a known technology and will not be described in detail here. The hand crank 10 is inserted inside the winch 9 and is connected to its transmission. The rope 11 is wound around the outside of the winch 9 and its top end is inserted inside the jack 7. By rotating the hand crank 10, the winch 9 can be rotated, thereby retracting or releasing the rope 11, which serves to lift or lower heavy objects.

[0023] A first slide rail 3 is fixedly installed at the bottom of the base 2, and a first sliding frame 4 is laterally slidably connected inside the first slide rail 3. A second slide rail 5 is arranged above the first slide rail 3, and a second sliding frame 6 is laterally slidably connected inside the second slide rail 5. A fixing block 14 is fixedly connected to the end of both the first slide rail 3 and the second slide rail 5 away from the winch structure, and a pulley 15 is rotatably connected to the side of the fixing block 14. The first slide rail 3 and the second slide rail 5 are vertically corresponding, and there are two of each. The two first slide rails 3 and the two slide rails 5 are symmetrically arranged about the vertical center line of the base 2. The sides of the first sliding frame 4 and the second slide rail 5 are symmetrically connected. Both sides of the bottom of the sliding frame 6 are fixedly connected to the end near the winch structure with a fixing block 14, and the side of the fixing block 14 is rotatably connected to a pulley 15. The pulley 15 at the end away from the winch structure inside the first slide rail 3 and the second slide rail 5 are respectively rolledly connected to the side of the first sliding frame 4 and the second sliding frame 6. The pulley 15 at the end near the winch structure on both sides of the first sliding frame 4 and the second sliding frame 6 are respectively rolledly connected to the inside of the first slide rail 3 and the second slide rail 5, so that the first sliding frame 4 can move laterally in the first slide rail 3 through the pulley 15, and the second sliding frame 6 can move laterally in the second slide rail 5 through the pulley 15.

[0024] A hanger 7 is fixedly connected to the middle of the upper surface of the second sliding frame 6, and the movable end of the winch structure passes through the inside of the hanger 7. Both ends of the hanger 7 are rotatably connected to fixed pulleys 12, and the rope 11 is attached to the top of the two fixed pulleys 12. The fixed pulleys 12 can ensure the normal movement of the rope 11 and avoid wear. The end of the rope 11 away from the winch 9 is fixedly connected to a hook 13, which can lift the heavy objects below.

[0025] The lower surface of the first slide rail 3 is provided with a first limiting mechanism for limiting its position. The first limiting mechanism includes a first limiting rod 16. The first limiting rod 16 is threaded through the lower surface of the first slide rail 3 and its top end passes through the interior of the first slide rail 3 and can abut against the first sliding frame 4. After the first sliding frame 4 is pulled outward to the maximum limit, it can be locked by the first limiting rod 16 at the bottom. The lower surface of the first sliding frame 4 is provided with a locking hole that matches the first limiting rod 16. After the first limiting rod 16 passes through the locking hole, it can lock the first sliding frame 4.

[0026] The upper surface of the second slide rail 5 is provided with a second limiting mechanism for limiting its movement. The second limiting mechanism includes a positioning plate 17 and a second limiting rod 18. The upper surface of the second slide rail 5 and the part of the second sliding frame 6 parallel to the upper surface of the second slide rail 5 are both fixedly connected to the positioning plate 17. The second limiting rod 18 is threaded through the side of the positioning plate 17 on the upper surface of the second slide rail 5, and the second limiting rod 18 can pass through the positioning plate 17 on the second sliding frame 6. When the second sliding frame 6 is pulled outward to the designated position (the position corresponding to the lifting part of the hook and the suspended load), the second limiting mechanism is activated. The positioning plate 17 on the second sliding frame 6 can correspond to the positioning plate 17 on the second slide rail 5. The position of the second sliding frame 6 can be locked by inserting the second limiting rod 18 on the side of the positioning plate 17 on the second slide rail 5 into the corresponding part of the positioning plate 17 on the second sliding frame 6. Then, the hook 13 is connected to the load to be lifted, and the load is lifted by the winch structure to separate it from the first sliding frame 4. Then, the first sliding frame 4 is returned to the base 2 and locked. At this time, the load to be lifted can be lowered vertically to the ground or mobile platform by the winch structure.

[0027] In summary, the operating steps of this double-pull heavy-duty hoisting mechanism are as follows:

[0028] 1. Pull the first sliding frame 4 outward to the maximum limit and lock the first sliding frame 4 through the first limit rod 16 at the bottom, so that the heavy object placed on the first sliding frame 4 can be moved outward;

[0029] 2. Then pull the second sliding frame 6 outward to the designated position (the position of the hook corresponding to the lifting part of the load), and lock the position of the second sliding frame 6 through the second limiting mechanism;

[0030] 3. Then connect the hook 13 to the load to be lifted, lift the load through the winch structure, and detach it from the first sliding frame 4. Then return the first sliding frame 4 to the base 2 and lock it. At this time, the load to be lifted can be lowered vertically to the ground or mobile platform through the winch structure.

[0031] 4. Similarly, when it is necessary to hoist a heavy object into the base 2, the second sliding frame 6 can be pulled outward first, and the hook 13 can be lowered to a height that can hoist the heavy object through the winch structure. The hook 13 is connected to the heavy object, and the heavy object is hoisted through the winch structure so that the bottom of the heavy object is higher than the first sliding frame 4. Then, the first sliding frame 4 is pulled outward to the maximum limit, the heavy object is lowered onto the first sliding frame 4 and the hook 13 is removed. Finally, the first sliding frame 4 is pushed into the base 2 to complete the storage of the heavy object.

[0032] The above description is only for illustrating the present utility model. It should be understood that the present utility model is not limited to the above embodiments, and various modifications that conform to the concept of the present utility model are within the protection scope of the present utility model.

Claims

1. A double-pull-out heavy-duty hoisting mechanism, comprising a mounting frame (1) and a base (2), characterized in that: The base (2) is fixedly connected to the bottom of the mounting frame (1), and a winch structure is provided on the side of the base (2). The bottom of the base (2) is fixedly installed with a first slide rail (3), and a first sliding frame (4) is slidably connected to the inside of the first slide rail (3). A second slide rail (5) is provided above the first slide rail (3), and a second sliding frame (6) is slidably connected to the inside of the second slide rail (5). A hanger (7) is fixedly connected to the middle of the upper surface of the second sliding frame (6), and the movable end of the winch structure passes through the inside of the hanger (7). A first limiting mechanism for limiting the first slide rail (3) is provided on the lower surface of the first slide rail (3), and a second limiting mechanism for limiting the second slide rail (5) is provided on the upper surface of the second slide rail (5).

2. The double-pull-out heavy-duty hoisting mechanism device according to claim 1, characterized in that: The winch structure includes a fixed frame (8), a winch (9), a hand crank (10), and a rope (11). The fixed frame (8) is fixedly connected to the side of the base (2), and the winch (9) is installed on the upper surface of the fixed frame (8). The hand crank (10) passes through the inside of the winch (9) and is connected to it for transmission. The rope (11) is wound around the outside of the winch (9), and its top end passes through the inside of the hanger (7).

3. The double-pull heavy-duty hoisting mechanism device according to claim 2, characterized in that: Both ends of the hanger (7) are rotatably connected to fixed pulleys (12), and the rope (11) is attached to the top of the two fixed pulleys (12). The end of the rope (11) away from the winch (9) is fixedly connected to a hook (13).

4. The double-pull-out heavy-duty hoisting mechanism device according to claim 1, characterized in that: The first slide rail (3) and the second slide rail (5) are both fixedly connected to a fixing block (14) at the end away from the winch structure, and the side of the fixing block (14) is rotatably connected to a pulley (15). The first slide rail (3) and the second slide rail (5) are vertically corresponding and there are two of each. The two first slide rails (3) and the second slide rail (5) are symmetrically arranged with the vertical center line of the base (2) as the axis of symmetry.

5. The double-pull heavy-duty hoisting mechanism device according to claim 4, characterized in that: Both sides of the first sliding frame (4) and the bottom of both sides of the second sliding frame (6) near the winch structure are fixedly connected to a fixing block (14), and a pulley (15) is rotatably connected to the side of the fixing block (14). The pulley (15) at the end away from the winch structure inside the first slide rail (3) and the second slide rail (5) are respectively rolled and connected to the side of the first sliding frame (4) and the second sliding frame (6). The pulleys (15) at the end of the first sliding frame (4) and the second sliding frame (6) near the winch structure on both sides are respectively rolled and connected to the inside of the first slide rail (3) and the second slide rail (5).

6. The double-pull heavy-duty hoisting mechanism device according to claim 1, characterized in that: The first limiting mechanism includes a first limiting rod (16), which is threaded through the lower surface of the first slide rail (3) and its top end is inserted inside the first slide rail (3) and can abut against the first sliding frame (4). The second limiting mechanism includes a positioning plate (17) and a second limiting rod (18). The upper surface of the second slide rail (5) and the part of the second sliding frame (6) parallel to the upper surface of the second slide rail (5) are both fixedly connected to the positioning plate (17). The side of the positioning plate (17) on the upper surface of the second slide rail (5) is threaded with the second limiting rod (18), and the second limiting rod (18) can be inserted into the positioning plate (17) on the second sliding frame (6).

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