Lifting appliance with adjustable length

Abstract

The utility model relates to the technical field of length-adjustable lifting appliances, and discloses a length-adjustable lifting appliance which comprises a disc, a stabilizing mechanism is arranged at the top of the disc, an adjusting mechanism is arranged at the bottom of the disc, the adjusting mechanism comprises an extending assembly and a locking assembly, the extending assembly is arranged at the bottom of the disc, and the locking assembly is arranged at the bottom of the disc. The locking assembly is arranged at the bottom of the disc, and the stabilizing mechanism comprises a telescopic rod. When length adjustment is completed, the sliding block is lifted slightly, the buckle is rotated outwards and oppositely, so that the buckle is separated from the fixing pin, the sliding block is pulled downwards through fixed installation between the sliding block and the spring shaft at the bottom and elastic force of the spring shaft, and therefore the sliding block is matched with the tooth table. In this way, the tooth table can be fixed and cannot rotate, it can be guaranteed that the phenomena of slipping, loosening and the like cannot occur during lifting of the lifting appliance, accidents are reduced, and the safety coefficient is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of length-adjustable slings, in particular to a length-adjustable sling. Background Art

[0002] Larger inserts need to be lifted by multiple hoists at the same time. However, the inserts are of different shapes and the heights of the places where they are connected to the hoists are also different. In order to ensure that the inserts can be lifted smoothly, the points where each hoist is connected to the lifting equipment must be at the same height. Fixed-specification hoists cannot adapt well to inserts of different shapes, are not easy to disassemble and assemble, and have low efficiency.

[0003] According to the description of a length-adjustable hanger disclosed on the patent website (authorization announcement number: CN 210505202U), "The utility model belongs to the technical field of lifting equipment, and discloses a length-adjustable hanger, which is provided with a round tube, a lifting handle is welded to the end of the round tube, a screw is spirally installed at the front end of the round tube, and a fixing nut is sleeved on the connection between the screw and the round tube. It ensures that the insert can be lifted normally, and can effectively avoid damage to the insert due to crooked pulling and slanting; it is easy to use and can improve work efficiency."

[0004] In view of the above description, the applicant believes that there are the following problems:

[0005] During use of the utility model, when the length of the device needs to be adjusted, the screw is rotated counterclockwise, so that the screw can be extended to the left and the contact area with the round tube can be reduced, so that the length can be extended. In this way, when the device is extended, stress concentration is prone to occur due to the small contact area between the screw and the round tube when lifting the object, which makes it easy for shaking to occur and cause the device to break. In addition, it is fixed only by a fixing nut. When the object is heavy, thread slippage is likely to occur, causing the screw and the round tube to fall off, thereby causing an accident. Utility Model Content

[0006] The purpose of the utility model is to provide a sling with adjustable length to solve the problems raised in the above background technology.

[0007] To achieve the above object, the utility model provides the following technical solution: a sling capable of adjusting the length, comprising a disc, a stabilizing mechanism being arranged on the top of the disc, and an adjusting mechanism being arranged on the bottom of the disc;

[0008] The adjusting mechanism comprises an extending component and a locking component. The extending component is arranged at the bottom of the disc, and the locking component is arranged at the bottom of the disc.

[0009] Preferably, the stabilizing mechanism comprises a telescopic rod, the telescopic rod is fixedly mounted on the top of the disk, one end of the telescopic rod away from the disk is fixedly mounted on the top plate, a docking ring is fixedly mounted on the top of the top plate, a spring is fixedly mounted on the bottom of the top plate, a hinge seat 1 is fixedly mounted on the bottom of the top plate, a steel rope is rotatably mounted on the inner side of the hinge seat 1, and a hinge seat 2 is rotatably mounted on one end of the steel rope away from the hinge seat 1, which can stabilize the device.

[0010] Preferably, a circular through hole is opened inside the docking ring, the telescopic rod is arranged inside the spring, a circular disc is fixedly installed at one end of the spring away from the top plate, three hinge seats are provided, and the three hinge seats are fixedly installed on the top of the circular disc to limit the stability of the device.

[0011] Preferably, the locking assembly includes a U-shaped ring 2, which is fixedly installed on the bottom of the disc, a U-shaped ring 1 is slidably installed inside the U-shaped ring 2, a fixing tube is fixedly installed on the inner side of the U-shaped ring 1, a fixing pin is rotatably installed on the outer side of the fixing tube, a hook is rotatably installed inside the U-shaped ring 1, a buckle is rotatably installed on the outer side of the fixing tube, and a fixing pin is clamped on the inner side of the buckle, so that the device can be locked.

[0012] Preferably, a circular through hole is opened on the top of the fixed tube, a rectangular slide groove is opened inside the U-shaped ring 2, the U-shaped ring 1 is slidably installed inside the rectangular slide groove, and a limited slide groove is opened inside the U-shaped ring 1 to adjust the locking of the device.

[0013] Preferably, the extension assembly includes a threaded sleeve, which is fixedly mounted on the bottom of the disc, a threaded rod is threadedly mounted inside the threaded sleeve, a gear table is fixedly mounted on one end of the threaded rod away from the threaded sleeve, a turntable is fixedly mounted on the bottom of the gear table, a slider is slidably mounted on the outside of the threaded rod, and a reset shaft is fixedly mounted on the bottom of the slider, which can adjust the length of the sling.

[0014] Preferably, annular teeth are provided at the bottom of the slider and the top of the gear platform, the annular teeth at the bottom of the slider match the annular teeth at the top of the gear platform, a circular through hole is provided at the top of the slider, and the threaded rod is arranged inside the circular through hole to limit the length adjustment of the sling.

[0015] Compared with the prior art, the utility model provides a sling with adjustable length, which has the following beneficial effects:

[0016] 1. For the length-adjustable sling, when the length adjustment is completed, the slider is lifted up a little, and the buckle is rotated outwards to separate the buckle from the fixing pin, and the slider is fixedly installed with the bottom spring shaft. The slider is pulled downward by the elastic force of the spring shaft, so that the slider and the gear table cooperate with each other, so that the gear table can be fixed and will not rotate, which can ensure that the sling will not slip or loosen during lifting, thereby reducing accidents and improving the safety factor.

[0017] 2. The length-adjustable sling, when lifting, is connected between the crane and the top docking ring and pulled upward. When the docking ring is pulled, the top plate is driven to move upward through the fixed installation between the top plate. When the top plate moves, the hinge seat 1 is driven to move through the fixed installation between the bottom hinge seat 1. When the hinge seat 1 moves, it is rotated between the three steel ropes to drive the steel ropes to pull the disc to lift the object. In this way, the stability of the lifting device can be ensured by pulling at three positions at the same time, and smaller objects can be shaken. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0019] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the stabilizing mechanism of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the adjustment mechanism of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the extension component of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the locking assembly of the utility model;

[0024] Figure 6 For this utility model Figure 5 Enlarged structural diagram at A in the middle.

[0025] In the figure: 1. disc; 2. stabilizing mechanism; 3. adjusting mechanism; 31. extension assembly; 32. locking assembly; 21. hinge seat 1; 22. steel rope; 23. hinge seat 2; 24. spring; 25. telescopic rod; 26. docking ring; 27. top plate; 311. threaded rod; 312. slider; 313. reset shaft; 314. turntable; 315. threaded sleeve; 316. gear stage; 321. fixing tube; 322. buckle; 323. fixing pin; 324. U-shaped ring 1; 325. U-shaped ring 2; 326. hook. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Embodiment 1:

[0029] See also Figure 1-6 The utility model provides a technical solution: a sling capable of adjusting the length, comprising a disc 1, a stabilizing mechanism 2 is arranged on the top of the disc 1, and an adjusting mechanism 3 is arranged on the bottom of the disc 1;

[0030] The adjusting mechanism 3 comprises an extending component 31 and a locking component 32 . The extending component 31 is arranged at the bottom of the disc 1 , and the locking component 32 is arranged at the bottom of the disc 1 .

[0031] The stabilizing mechanism 2 includes a telescopic rod 25, which is fixedly mounted on the top of the disc 1. The end of the telescopic rod 25 away from the disc 1 is fixedly mounted on the top plate 27. A docking ring 26 is fixedly mounted on the top of the top plate 27. A spring 24 is fixedly mounted on the bottom of the top plate 27. A hinge seat 21 is fixedly mounted on the bottom of the top plate 27. A steel rope 22 is rotatably mounted on the inner side of the hinge seat 21. A hinge seat 23 is rotatably mounted on the end of the steel rope 22 away from the hinge seat 21, which can stabilize the device.

[0032] A circular through hole is provided inside the docking ring 26, and the telescopic rod 25 is arranged inside the spring 24. The disc 1 is fixedly installed at one end of the spring 24 away from the top plate 27. Three hinge seats 23 are provided, and the three hinge seats 23 are fixedly installed on the top of the disc 1 to limit the stability of the device.

[0033] Embodiment 2:

[0034] See also Figure 5 , and combined with Example 1, it is further obtained that the locking component 32 includes a U-shaped ring 2 325, the U-shaped ring 2 325 is fixedly installed at the bottom of the disc 1, a U-shaped ring 1 324 is slidably installed inside the U-shaped ring 2 325, a fixing tube 321 is fixedly installed on the inside of the U-shaped ring 1 324, a fixing pin 323 is rotatably installed on the outside of the fixing tube 321, a hook 326 is rotatably installed inside the U-shaped ring 1 324, a buckle 322 is rotatably installed on the outside of the fixing tube 321, and a fixing pin 323 is clamped on the inside of the buckle 322, which can lock the device.

[0035] A circular through hole is provided on the top of the fixed tube 321, a rectangular slide groove is provided inside the U-shaped ring 325, and the U-shaped ring 1 324 is slidably installed inside the rectangular slide groove. A limit slide groove is provided inside the U-shaped ring 1 324 to adjust the locking of the device.

[0036] The extension component 31 includes a threaded sleeve 315, which is fixedly mounted on the bottom of the disc 1. A threaded rod 311 is threadedly mounted inside the threaded sleeve 315. A gear stage 316 is fixedly mounted on one end of the threaded rod 311 away from the threaded sleeve 315. A turntable 314 is fixedly mounted on the bottom of the gear stage 316. A slider 312 is slidably mounted on the outside of the threaded rod 311. A reset shaft 313 is fixedly mounted on the bottom of the slider 312, which can adjust the length of the sling.

[0037] Annular teeth are provided at the bottom of the slider 312 and the top of the gear platform 316. The annular teeth at the bottom of the slider 312 match the annular teeth at the top of the gear platform 316. A circular through hole is provided at the top of the slider 312. The threaded rod 311 is arranged inside the circular through hole to limit the length adjustment of the sling.

[0038] In actual operation, when the device is used, when the length of the device needs to be adjusted, the slider 312 is pulled upward. When the slider 312 is pulled, the fixed installation between the slider 312 and the fixing pin 323 drives the buckle 322 to move upward. When the fixing pin 323 moves upward, the buckle 322 is rotated in the opposite direction. When the buckle 322 is rotated, it contacts the fixing pin 323, and the fixing pin 323 can be fixed. At this time, the slider 312 will also be fixed, so that the slider 312 and the gear stage 316 are separated.

[0039] After separation, by rotating the turntable 314 counterclockwise, the turntable 314 drives the gear stage 316 to rotate through the fixed installation between the top gear stage 316, and the gear stage 316 rotates through the fixed installation between the top threaded rod 311 to rotate, and the threaded rod 311 rotates through the threaded installation between the external threaded sleeve 315, so that the threaded sleeve 315 is extended, so that the device can be adjusted to extend, thereby driving the U-shaped ring 2 325 and the U-shaped ring 1 324 to extend, so that the length of the device can be adjusted for easy use;

[0040] When the length adjustment is completed, the slider 312 is lifted a little, and the buckle 322 is rotated outward to separate the buckle 322 from the fixing pin 323, and the slider 312 is fixedly installed with the bottom reset shaft 313, and the slider 312 is pulled downward by the elastic force of the reset shaft 313, so that the slider 312 and the gear stage 316 cooperate with each other, so that the gear stage 316 can be fixed and prevented from rotating, and the lifting device can be ensured not to slip or loosen during lifting, so as to reduce accidents and improve the safety factor;

[0041] When lifting, the crane is connected with the top docking ring 26 and pulled upward. When the docking ring 26 is pulled, the top plate 27 is driven to move upward through the fixed installation between the top plate 27. When the top plate 27 moves, the hinge seat 21 is driven to move through the fixed installation between the bottom hinge seat 21. When the hinge seat 21 moves, the steel ropes 22 are driven to pull the disc 1 through the rotational installation between the three steel ropes 22 to lift the object. In this way, the three positions can be pulled at the same time to ensure the stability of the lifting device and make smaller objects shake.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A sling capable of adjusting the length, comprising a disc (1), characterized in that: The top of the disc (1) is provided with a stabilizing mechanism (2), and the bottom of the disc (1) is provided with an adjusting mechanism (3); The adjustment mechanism (3) comprises an extension component (31) and a locking component (32); the extension component (31) is arranged at the bottom of the disc (1); and the locking component (32) is arranged at the bottom of the disc (1).

2. The length-adjustable sling according to claim 1, characterized in that: The stabilizing mechanism (2) comprises a telescopic rod (25), wherein the telescopic rod (25) is fixedly mounted on the top of the disc (1), wherein one end of the telescopic rod (25) away from the disc (1) is fixedly mounted on a top plate (27), wherein a docking ring (26) is fixedly mounted on the top of the top plate (27), wherein a spring (24) is fixedly mounted on the bottom of the top plate (27), wherein a hinge seat 1 (21) is fixedly mounted on the bottom of the top plate (27), wherein a steel rope (22) is rotatably mounted on the inner side of the hinge seat 1 (21), and wherein one end of the steel rope (22) away from the hinge seat 1 (21) is rotatably mounted on a hinge seat 2 (23).

3. The length-adjustable sling according to claim 2, characterized in that: A circular through hole is provided inside the docking ring (26), the telescopic rod (25) is arranged inside the spring (24), a circular disc (1) is fixedly mounted on one end of the spring (24) away from the top plate (27), three hinge seats (23) are provided, and the three hinge seats (23) are fixedly mounted on the top of the circular disc (1).

4. The length-adjustable sling according to claim 1, characterized in that: The locking assembly (32) comprises a second U-shaped ring (325), wherein the second U-shaped ring (325) is fixedly mounted on the bottom of the disc (1), a first U-shaped ring (324) is slidably mounted inside the second U-shaped ring (325), a fixing tube (321) is fixedly mounted inside the first U-shaped ring (324), a fixing pin (323) is rotatably mounted outside the fixing tube (321), a hook (326) is rotatably mounted inside the first U-shaped ring (324), a buckle (322) is rotatably mounted outside the fixing tube (321), and a fixing pin (323) is clamped inside the buckle (322).

5. The length-adjustable sling according to claim 4, characterized in that: A circular through hole is provided at the top of the fixed tube (321), a rectangular slide groove is provided inside the U-shaped ring 2 (325), the U-shaped ring 1 (324) is slidably installed inside the rectangular slide groove, and a limited slide groove is provided inside the U-shaped ring 1 (324).

6. The length-adjustable sling according to claim 1, characterized in that: The extension assembly (31) comprises a threaded sleeve (315), wherein the threaded sleeve (315) is fixedly mounted on the bottom of the disc (1), a threaded rod (311) is threadedly mounted inside the threaded sleeve (315), a gear platform (316) is fixedly mounted on one end of the threaded rod (311) away from the threaded sleeve (315), a rotating disk (314) is fixedly mounted on the bottom of the gear platform (316), a sliding block (312) is slidably mounted on the outside of the threaded rod (311), and a reset shaft (313) is fixedly mounted on the bottom of the sliding block (312).

7. The length-adjustable sling according to claim 6, characterized in that: The bottom of the slider (312) and the top of the gear platform (316) are both provided with annular teeth, the annular teeth at the bottom of the slider (312) match the annular teeth at the top of the gear platform (316), the top of the slider (312) is provided with a circular through hole, and the threaded rod (311) is arranged inside the circular through hole.

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