Automatic unhooking lifting appliance

Abstract

The utility model relates to the field of lifting appliances, and discloses an automatic unhooking lifting appliance which comprises a connecting box, a rectangular hole is formed in one end of the bottom in the connecting box, connecting plates are fixed to the two sides of the bottom of the connecting box, the inner side walls of the two connecting plates are rotationally connected with the same first rotating shaft, the side wall of the first rotating shaft is sleeved with a hook, and a first connecting rod is fixed to the side wall of the hook. One end of the first connecting rod penetrates through the surface of the hook, the side wall of the first connecting rod is rotationally connected with a U-shaped frame, a first connecting ring is fixed to the top of the U-shaped frame, a pull rope is fixed to the side wall of the first connecting ring, a winding mechanism used for winding the pull rope is arranged in the connecting box, the inner side wall of the connecting box is rotationally connected with a second rotating shaft, and the side wall of the second rotating shaft is sleeved with a gear; a sleeve is fixed to the bottom in the connecting box, a spring is arranged in the sleeve, and one end of the spring is fixed to the connecting box. According to the automatic unhooking device, automatic unhooking treatment of goods can be achieved in the using process, and the practicability of the automatic unhooking device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of slings, in particular to an automatic decoupling sling. Background Art

[0002] A sling refers to industrial equipment used for lifting, hanging and transporting, usually composed of wire ropes, chains and hooks. It is widely used in construction, manufacturing, warehousing and logistics, and is used for lifting heavy objects, loading and unloading goods, hanging and other tasks. However, traditional slings require manual unhooking during use, which makes operation inconvenient. Therefore, an automatic unhooking sling is needed.

[0003] During the use of traditional slings, after the goods are lifted to the destination, workers usually disengage the hook and the goods, and the unhooking process cannot be performed automatically. However, in some special working environments, such as high-altitude operations, workers cannot enter the lifting destination to disengage the hook, which makes operation inconvenient and reduces the practicality of the device. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides an automatic unhooking sling.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The hook is fixed on the side wall of the first connecting rod and the hook is fixed on the side wall of the second connecting rod, and the hook is fixed on the side wall of the first connecting rod. A sleeve is fixed at the bottom of the connecting box, and a spring is provided inside the sleeve, and one end of the spring is fixed to the connecting box. A first rotating mechanism for rotating the gear is provided on the inner wall of the sleeve. During use of the device, when the goods are lifted, the first rotating mechanism drives the gear to rotate, and cooperates with the second power mechanism and the winding mechanism to release the pull rope, so that the spring is in a stretched state. When the goods are lifted to the designated location, the spring in the stretched state gradually returns to its original state, driving the gear to rotate in the opposite direction, and cooperates with the second rotating mechanism and the winding mechanism to wind up the pull rope, so that the hook rotates, so that the rope binding the goods is detached, and automatic unhooking is achieved, which increases the practicality of the device.

[0007] As a further solution of the present invention, the winding mechanism includes a third rotating shaft, which is rotatably connected to the inner wall of the connecting box, the side wall of the third rotating shaft is sleeved with a winding disk, and one end of the pull rope is wrapped around the side wall of the winding disk, and a second rotating mechanism for rotating the winding disk is provided inside the connecting box, and the second rotating mechanism includes a slide, which is fixed on the inner wall of the connecting box near one end of the rectangular hole, and the side wall of the slide is slidably connected to a slider, and the side wall of the slider is fixed with a second rack, and the second rack is meshed with the gear, and the side walls at both ends of the winding disk are sleeved with a gear ring, and the two gear rings are meshed with the second rack, and the second rack is driven to descend or rise by the gear, and the gear ring drives the winding disk to rotate, thereby realizing the release and winding of the pull rope.

[0008] As a further solution of the present invention, the first rotating mechanism includes a sleeve rod, a circular hole is provided on the top of the sleeve, one end of the sleeve rod is slidably arranged in the circular hole, and the other end of the sleeve rod passes through the top of the connecting box, the other end of the sleeve rod is fixed with a second connecting ring, the inner side wall of the sleeve is slidably connected to a circular seat, and the circular seat and the other end of the spring are fixed, the circular seat and one end of the sleeve rod are fixed, the side wall of the sleeve is provided with a sliding groove, a first rack is slidably provided in the sliding groove, and one end of the first rack passes through the top of the connecting box, the first The rack and the sleeve rod are fixed, and the first rack and the gear are meshed. When the goods are lifted, the sleeve rod moves upward along the inner wall of the sleeve, and cooperates with the first rack to drive the gear to rotate. The rotation of the gear cooperates with the second rack and the gear ring to drive the reel to rotate, and the pull rope is released. At this time, the spring is in a stretched state. When the goods are lifted to the designated location, under the reaction of the stretched spring, the sleeve rod is driven to move downward, and cooperates with the first rack, gear, second rack and gear ring to drive the reel to rotate in the opposite direction, reeling the pull rope, and then driving the hook to rotate, realizing automatic unhooking.

[0009] As a further solution of the present invention, a second connecting rod is fixed to the bottom of the inner wall of the connecting box, and the second connecting rod is located at the rectangular hole. Through the action of the second connecting rod, one end of the pull rope is in an inclined state, which facilitates the rotation of the hook.

[0010] The beneficial effects of the utility model are:

[0011] 1. During use of this device, the rope for tying the goods is hung on the hook. When the goods are lifted, the gear is driven to rotate by the first rotating mechanism, and the pull rope is released in cooperation with the second power mechanism and the winding mechanism, so that the spring is in a stretched state. When the goods are lifted to the designated location, the spring in the stretched state gradually returns to its original state, driving the gear to rotate in the opposite direction, and the pull rope is wound in cooperation with the second rotating mechanism and the winding mechanism, so that the hook rotates, and the rope for tying the goods is detached, realizing automatic unhooking, thereby increasing the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural diagram of an automatic unhooking sling proposed by the utility model;

[0013] Figure 2 This is a schematic cross-sectional structure diagram of a connection box of an automatic unhooking sling proposed in the present invention;

[0014] Figure 3 This is a schematic structural diagram of the first rack, gear and second rack of an automatic unhooking sling proposed by the utility model;

[0015] Figure 4 This is a schematic diagram of the exploded structure of a hook, a first connecting rod, a U-shaped frame and a first connecting ring of an automatic unhooking sling proposed in the utility model;

[0016] Figure 5 This is a schematic diagram of the explosion structure of the reel and gear ring of an automatic unhooking sling proposed in the utility model;

[0017] Figure 6 The utility model provides a schematic diagram of the explosion structure of the sleeve rod, sleeve and spring of the automatic unhooking sling.

[0018] In the figure: 1. connecting box; 2. connecting plate; 3. first rotating shaft; 4. hook; 5. first connecting rod; 6. U-shaped frame; 7. first connecting ring; 8. pull rope; 9. sleeve rod; 10. first rack; 11. second connecting ring; 12. sleeve; 13. slide seat; 14. second rotating shaft; 15. third rotating shaft; 16. second connecting rod; 17. gear; 18. second rack; 19. slider; 20. take-up reel; 21. gear ring; 22. spring; 23. slide groove; 24. circular seat. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Reference Figures 1-6, an automatic unhooking sling, including a connecting box 1, a rectangular hole is opened at one end of the bottom of the connecting box 1, connecting plates 2 are fixed on both sides of the bottom of the connecting box 1, the inner side walls of the two connecting plates 2 are rotatably connected to the same first rotating shaft 3, the side wall of the first rotating shaft 3 is sleeved with a hook 4, the side wall of the hook 4 is fixed with a first connecting rod 5, and one end of the first connecting rod 5 passes through the surface of the hook 4, the side wall of the first connecting rod 5 is rotatably connected to a U-shaped frame 6, the top of the U-shaped frame 6 is fixed with a first connecting ring 7, the side wall of the first connecting ring 7 is fixed with a pull rope 8, a winding mechanism for winding the pull rope 8 is provided inside the connecting box 1, the inner side wall of the connecting box 1 is rotatably connected to the second rotating shaft 14, the side wall of the second rotating shaft 14 is sleeved with a gear 17, and the bottom of the connecting box 1 is fixed. The sleeve 12 has a spring 22 arranged inside, and one end of the spring 22 is fixed to the connecting box 1. The inner wall of the sleeve 12 is provided with a first rotating mechanism for rotating the gear 17. During use of the device, when the goods are lifted, the first rotating mechanism drives the gear 17 to rotate, and cooperates with the second power mechanism and the winding mechanism to release the pull rope 8, so that the spring 22 is in a stretched state. When the goods are lifted to the designated location, the stretched spring 22 gradually returns to its original state, driving the gear 17 to rotate in the opposite direction, and cooperates with the second rotating mechanism and the winding mechanism to wind up the pull rope 8, so that the hook 4 rotates, so that the rope binding the goods is detached, and automatic unhooking is achieved, which increases the practicality of the device.

[0021] Reference Figure 2 and Figure 3 In a preferred embodiment, the winding mechanism includes a third rotating shaft 15, which is rotatably connected to the inner wall of the connecting box 1, and the side wall of the third rotating shaft 15 is sleeved with a winding disk 20, and one end of the pull rope 8 is wound around the side wall of the winding disk 20. A second rotating mechanism for rotating the winding disk 20 is provided inside the connecting box 1, and the second rotating mechanism includes a slide 13, which is fixed on the inner wall of the connecting box 1 near one end of the rectangular hole, and the side wall of the slide 13 is slidably connected with a slider 19, and a second rack 18 is fixed on the side wall of the slider 19, and the second rack 18 is meshed with the gear 17. A gear ring 21 is sleeved on the side walls of both ends of the winding disk 20, and the two gear rings 21 are meshed with the second rack 18. The second rack 18 is driven to descend or rise by the gear 17, and the gear ring 21 drives the winding disk 20 to rotate, thereby realizing the release and winding of the pull rope 8.

[0022] Reference Figure 2 and Figure 6In a preferred embodiment, the first rotating mechanism includes a sleeve rod 9, a circular hole is opened at the top of the sleeve 12, one end of the sleeve rod 9 is slidably arranged in the circular hole, and the other end of the sleeve rod 9 passes through the top of the connecting box 1, and the other end of the sleeve rod 9 is fixed with a second connecting ring 11, and the inner side wall of the sleeve 12 is slidably connected with a circular seat 24, and the circular seat 24 and the other end of the spring 22 are fixed, the circular seat 24 and one end of the sleeve rod 9 are fixed, and a sliding groove 23 is opened on the side wall of the sleeve 12, and a first rack 10 is slidably provided in the sliding groove 23, and one end of the first rack 10 passes through the top of the connecting box 1, the first rack 10 and the sleeve rod 9 are fixed, and the first The rack 10 and the gear 17 are meshed. When the goods are lifted, the sleeve rod 9 moves upward along the inner wall of the sleeve 12, and cooperates with the first rack 10 to drive the gear 17 to rotate. The rotation of the gear 17 cooperates with the second rack 18 and the gear ring 21 to drive the reel 20 to rotate, and the pull rope 8 is released. At this time, the spring 22 is in a stretched state. When the goods are lifted to the designated location, under the reaction of the stretched spring 22, the sleeve rod 9 is driven to move downward, and cooperates with the first rack 10, gear 17, the second rack 18 and the gear ring 21 to drive the reel 20 to rotate in the opposite direction, and the pull rope 8 is wound, thereby driving the hook 4 to rotate and realize automatic unhooking.

[0023] Reference Figure 2 In a preferred embodiment, a second connecting rod 16 is fixed to the bottom of the inner wall of the connecting box 1, and the second connecting rod 16 is located at the rectangular hole. Through the action of the second connecting rod 16, one end of the pull rope 8 is in an inclined state, which facilitates the rotation of the hook 4.

[0024] The working principle of this embodiment: When the device is in use, the second connecting ring 11 and the wire rope are fixed in advance and used through an external lifting device. When the goods need to be lifted, the hook 4 is hung on the rope that ties the goods, and the goods are lifted by the lifting mechanism. During the lifting process, the sleeve rod 9 gradually rises along the inner wall of the sleeve 12, and the spring 22 is in a stretched state. During the rising process of the sleeve rod 9, the first rack 10 is driven to rise, and then the gear 17 is driven to rotate, and the second rack 18 and the spring 22 are used to drive the reel 20 to rotate, and the pull rope 8 is released until the goods are off the ground. At this time, the hook 4 is in a vertical state. When the goods are lifted to the target After the location is determined, the wire rope is released through the lifting mechanism until the wire rope is no longer under stress. At this time, the spring 22 gradually returns to its original state. In the process of returning to its original state, the spring 22 drives the sleeve rod 9 to move downward, cooperates with the first rack 10 to drive the gear 17 to rotate in the opposite direction, and then drives the second rack 18 to move upward, cooperates with the gear ring 21 to drive the reel 20 to rotate in the opposite direction, and reels the pull rope 8. In the process of reeling, the U-shaped frame 6 and the first connecting ring 7 drive the hook 4 to rotate. When the hook 4 rotates to a certain angle, the rope binding the goods is disengaged from the hook 4, realizing automatic unhooking. There is no need for manual unhooking, which improves the practicality of the device.

[0025] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0026] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0027] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0028] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An automatic unhooking sling, comprising a connection box (1), characterized in that: A rectangular hole is provided at one end of the bottom of the connection box (1), and connection plates (2) are fixed on both sides of the bottom of the connection box (1). The inner side walls of the two connection plates (2) are rotatably connected to the same first rotating shaft (3), and the side wall of the first rotating shaft (3) is sleeved with a hook (4), and the side wall of the hook (4) is fixed with a first connecting rod (5), and one end of the first connecting rod (5) passes through the surface of the hook (4), and the side wall of the first connecting rod (5) is rotatably connected to a U-shaped frame (6), and the top of the U-shaped frame (6) is fixed with a first connecting ring (7), and the first A drawstring (8) is fixed to the side wall of the connecting ring (7), a reeling mechanism for reeling in the drawstring (8) is provided inside the connecting box (1), a second rotating shaft (14) is rotatably connected to the inner side wall of the connecting box (1), a gear (17) is sleeved on the side wall of the second rotating shaft (14), a sleeve (12) is fixed to the bottom of the inner side of the connecting box (1), a spring (22) is provided inside the sleeve (12), and one end of the spring (22) is fixed to the connecting box (1), and a first rotating mechanism for rotating the gear (17) is provided on the inner side wall of the sleeve (12).

2. The automatic unhooking spreader according to claim 1, characterized in that: The winding mechanism includes a third rotating shaft (15), the third rotating shaft (15) is rotatably connected to the inner side wall of the connecting box (1), the side wall of the third rotating shaft (15) is sleeved with a winding disk (20), and one end of the pull rope (8) is wound around the side wall of the winding disk (20), and a second rotating mechanism for rotating the winding disk (20) is provided inside the connecting box (1).

3. The automatic unhooking spreader according to claim 2, characterized in that: The second rotating mechanism includes a slide (13), the slide (13) is fixed on the inner side wall of the connecting box (1) near one end of the rectangular hole, the side wall of the slide (13) is slidably connected to a slider (19), the side wall of the slider (19) is fixed with a second rack (18), and the second rack (18) and the gear (17) are engaged, and the side walls of both ends of the winding disk (20) are sleeved with toothed rings (21), and the two toothed rings (21) are engaged with the second rack (18).

4. The automatic unhooking spreader according to claim 1, characterized in that: The first rotating mechanism comprises a sleeve rod (9), a circular hole is opened at the top of the sleeve (12), one end of the sleeve rod (9) is slidably arranged in the circular hole, and the other end of the sleeve rod (9) passes through the top of the connecting box (1), a second connecting ring (11) is fixed to the other end of the sleeve rod (9), a circular seat (24) is slidably connected to the inner wall of the sleeve (12), and the circular seat (24) and the other end of the spring (22) are fixed, and the circular seat (24) and one end of the sleeve rod (9) are fixed.

5. The automatic unhooking spreader according to claim 4, characterized in that: A sliding groove (23) is provided on the side wall of the sleeve (12), a first rack (10) is slidably provided in the sliding groove (23), and one end of the first rack (10) passes through the top of the connecting box (1), the first rack (10) and the sleeve rod (9) are fixed, and the first rack (10) and the gear (17) are engaged.

6. The automatic unhooking spreader according to claim 1, characterized in that: A second connecting rod (16) is fixed to the bottom of the inner side wall of the connection box (1), and the second connecting rod (16) is located at the rectangular hole.

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