Hoisting device

Abstract

The invention relates to a lifting device which comprises a device body, a lifting appliance and a lifting piece assembly, the lifting appliance is arranged at one end of the device body, the lifting piece assembly comprises a lifting piece limiting piece and a lifting piece matching piece, one of the lifting piece limiting piece and the lifting piece matching piece is arranged at the other end of the device body, and the other of the lifting piece limiting piece and the lifting piece matching piece is arranged on a device to be lifted. The lifting piece limiting piece is provided with a lifting piece through hole, a rotation stopping limiting structure is arranged on the side, penetrating out of the lifting piece through hole, of the lifting piece matching piece, the lifting piece matching piece is provided with a rotation stopping matching structure, and the rotation stopping limiting structure is matched with the rotation stopping matching structure when the lifting piece matching piece penetrates through the lifting piece through hole. When the hoisting device is pulled by the hoisting rope, the hoisting device cannot rotate relative to the to-be-hoisted device, so that the hoisting rope can be kept at the preset position in the hoisting process, the hoisting point is integrally and vertically lifted, the situation that the hoisting rope touches the transformer bushing is avoided, and the to-be-hoisted device can be smoothly hoisted.

Description

Technical Field

[0001] This invention relates to the field of lifting equipment technology, and in particular to a lifting device. Background Technology

[0002] Transformer bushings are the main insulation devices outside the transformer box. The leads of the transformer windings must pass through the insulating bushings to insulate the leads from each other and from the transformer casing, while also fixing the leads in place.

[0003] However, due to improper design of the lifting ramp position during transformer hoisting, the lifting rope is prone to rotating when it is taut during hoisting, causing the lifting rope to hit the transformer bushing. The transformer bushing itself has low structural strength and cannot withstand large forces. Therefore, the transformer cannot be lifted when the lifting rope hits the transformer bushing. In this case, it is necessary to extract some transformer oil and remove the transformer bushing before lifting, which is cumbersome and affects the hoisting efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a hoisting device that can avoid the problem of the hoisting rope being stressed and causing the hoisting structure to rotate and hit the transformer bushing during hoisting.

[0005] To achieve the above objectives, the present invention provides the following technical solution: In a first aspect of this application, a lifting device is provided, comprising: Main body of the device; A lifting device is provided at one end of the main body of the device; A lifting assembly includes a lifting limiter and a lifting mating component. One of the lifting limiter and the lifting mating component is located at the other end of the main body of the device, and the other is located on the device to be lifted. The lifting limiter has a lifting through hole and an anti-rotation limiting structure is provided on the side of the lifting mating component that extends through the lifting through hole. The lifting mating component has an anti-rotation fitting structure. The anti-rotation limiting structure engages with the anti-rotation fitting structure when the lifting mating component passes through the lifting through hole, so that the lifting limiter and the lifting mating component are in an anti-rotation engagement.

[0006] In one possible implementation, the anti-rotation limiting structure has at least one anti-rotation limiting surface, and the anti-rotation mating structure has at least one anti-rotation mating surface. The anti-rotation limiting surface contacts the anti-rotation mating surface to engage with the lifting climbing member when it passes through the lifting climbing through hole. And / or, one of the anti-rotation limiting structure and the anti-rotation mating structure is provided with at least one anti-rotation recess, and the other is provided with an anti-rotation protrusion corresponding to the anti-rotation recess. The anti-rotation recess engages with the anti-rotation protrusion to prevent rotation when the lifting fitting passes through the lifting through hole.

[0007] In one possible implementation, the anti-rotation limiting structure includes two anti-rotation limiting blocks, which are spaced apart from each other on the side of the lifting through hole away from the lifting device. The facing surfaces of the two anti-rotation limiting blocks are the anti-rotation limiting surfaces, and the distance between the two anti-rotation limiting surfaces decreases as the distance between them and the lifting device increases. The anti-rotation fitting structure includes two anti-rotation fitting surfaces arranged in opposite directions. The included angle between the two anti-rotation fitting surfaces is the same as the included angle between the two anti-rotation limiting surfaces. The two anti-rotation fitting surfaces and the two anti-rotation limiting surfaces are in one-to-one contact fit.

[0008] In one possible implementation, the lifting mechanism includes a lifting shaft and a lifting plate, the lifting plate being disposed at one end of the lifting shaft, and the lifting plate having two anti-rotation mating surfaces.

[0009] In one possible implementation, the outer contour of the lifting plate is the same as the outer contour of the lifting through hole, and the cross-sectional area of ​​the lifting plate is smaller than the cross-sectional area of ​​the lifting through hole.

[0010] In one possible implementation, the lifting limit member is provided with an anti-detachment structure on the side of the lifting mating member that protrudes from the lifting through hole. The anti-detachment structure is used to cooperate with the lifting plate to prevent the lifting plate from detaching from the lifting through hole.

[0011] In one possible implementation, the anti-detachment structure includes a limiting plate detachably disposed on the lifting climbing limiting member, the limiting plate being positioned between the lifting climbing plate and the lifting climbing limiting member to prevent the lifting climbing plate from moving relative to the lifting climbing limiting member along the axial direction of the lifting climbing shaft.

[0012] In one possible implementation, the limiting plate partially covers the lifting through hole.

[0013] In one possible implementation, the device body includes at least two movable members, with two adjacent movable members being tunably connected in a preset direction so that the length of the device body is adjustable in the preset direction. The lifting device and the mating structure are located at both ends of the device body along the preset direction so that the distance between the lifting device and the mating structure is adjustable as the length of the device body changes.

[0014] In one possible implementation, a positioning mechanism is provided between two adjacent movable components, the positioning mechanism being used to fix the two adjacent movable components relative to each other.

[0015] In one possible implementation, the positioning mechanism includes: A first pin groove is provided in one of two adjacent movable components; The second pin groove is one of the two adjacent movable components, which is provided with a plurality of second pin grooves arranged at intervals in the preset direction; Locking pins engage with the first pin groove and the second pin groove respectively, so that the two adjacent movable components are relatively fixed.

[0016] In one possible implementation, the lifting device is adjustable relative to the main body of the device along the preset direction.

[0017] In one possible implementation, the lifting device is threadedly connected to the main body of the device.

[0018] As can be seen from the above technical solution, the present invention discloses a lifting device, which includes a device body, a lifting tool, and a lifting climbing assembly. The device body provides an installation position and support for the lifting tool and the lifting climbing assembly. The lifting tool is disposed at one end of the device body. The lifting climbing assembly includes a lifting climbing limiting member and a lifting climbing mating member. One of the lifting climbing limiting member and the lifting climbing mating member is disposed at the other end of the device body, and the other is disposed at the device to be lifted. The lifting climbing limiting member is provided with a lifting climbing through hole, and an anti-rotation limiting structure is provided on the side of the lifting climbing mating member that passes through the lifting climbing through hole. The lifting climbing mating member is provided with an anti-rotation mating structure. The anti-rotation limiting structure engages with the anti-rotation mating structure when the lifting climbing mating member passes through the lifting climbing through hole, so that the lifting climbing limiting member and the lifting climbing mating member engage in an anti-rotation mating.

[0019] In application, the lifting limiter is fitted onto the lifting mating part through the lifting through hole, and then the lifting device is connected to the lifting rope. When the lifting rope is lifted and tightened, the anti-rotation limiter and the anti-rotation mating structure cooperate to prevent the lifting limiter from rotating relative to the lifting mating part. This avoids the lifting assembly from rotating relative to the lifting device due to the pulling of the lifting rope, and also prevents the lifting device from rotating relative to the device to be lifted. This allows the lifting rope to remain in the preset position during the lifting process, achieving a vertical increase of the entire lifting point and preventing the lifting rope from hitting the transformer bushing, thus ensuring that the device to be lifted can be lifted smoothly. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. 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 effort.

[0021] Figure 1 This is a schematic diagram of the hoisting device provided in an embodiment of the present invention; Figure 2 A schematic diagram illustrating the engagement of the lifting assembly of the hoisting device provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the hoisting device provided in an embodiment of the present invention.

[0022] In the picture: 100 is the main body of the device; 110 is the first movable component; 111 is the threaded sleeve; 112 is the first pin groove; 120 is the second movable component; 121 is the sliding groove; 122 is the second pin groove; 200 is a lifting device; 300 is the lifting limit component; 310 is the lifting through hole; 320 is the stop-rotation limit block; 321 is the stop-rotation limit surface; 400 is the lifting bracket fitting; 410 is the lifting bracket shaft; 420 is the lifting bracket clamping plate; 421 is the stop-rotation mating surface; 430 is the lifting bracket base; 500 is the limit plate; 600 is the lifting rope; 700 is the transformer; 800 is the transformer bushing. Detailed Implementation

[0023] The core of this invention is to provide a hoisting device whose structural design enables it to avoid the problem of the hoisting rope rotating due to force during hoisting and hitting the sleeve.

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] This application provides a hoisting device; please refer to [link / reference]. Figure 1 and Figure 2 The hoisting device includes a main body 100, a lifting device 200, and a hoisting assembly.

[0026] The main body 100 provides an installation position and support for the lifting device 200 and the lifting assembly. The main body 100 is usually a long strip structure so that the connection position between the lifting device and the lifting rope 600 is moved as high as possible to avoid the transformer bushing 800. The main body 100 can be a fixed length structure or an adjustable length structure.

[0027] The lifting device 200 is located at one end of the main body 100 of the device. The lifting device 200 is used to connect with the lifting rope 600. The structure of the lifting device 200 is adapted to the end structure of the lifting rope 600. For example, when the end structure of the lifting rope 600 is a loop structure, the lifting device 200 can adopt a hook structure. When the end structure of the lifting rope 600 is a hook structure, the lifting device 200 can adopt a hook structure or a loop structure.

[0028] The lifting assembly includes a lifting limiter 300 and a lifting mating part 400. One of the lifting limiter 300 and the lifting mating part 400 is located at the other end of the main body 100 of the device, and the other is located on the device to be lifted. The device to be lifted includes, but is not limited to, a transformer 700. The lifting limiter 300 is provided with a lifting through hole 310, and an anti-rotation limiting structure is provided on the side of the lifting mating part 400 that protrudes from the lifting through hole 310. That is, the lifting through hole 310 can be located on the main body 100 of the device or on the device to be lifted.

[0029] The lifting climbing fitting 400 is equipped with an anti-rotation fitting structure. The anti-rotation limiting structure engages with the anti-rotation fitting structure when the lifting climbing fitting 400 passes through the lifting climbing through hole 310, so that the lifting climbing limiting member 300 and the lifting climbing fitting 400 are in anti-rotation engagement. That is, when the anti-rotation limiting structure and the anti-rotation fitting structure are engaged, the lifting climbing limiting member 300 and the lifting climbing fitting 400 cannot rotate relative to each other, or the lifting climbing limiting member 300 and the lifting climbing fitting 400 can rotate relative to each other, but the relative rotation angle is within a preset range, such as the relative rotation angle of the lifting climbing limiting member 300 and the lifting climbing fitting 400 is within ±10°.

[0030] Compared with the prior art, the hoisting device provided in this application, when applied, such as Figure 2 and Figure 3 As shown, the lifting limiter 300 is fitted onto the lifting mating part 400 through the lifting through hole 310. Then, the lifting device 200 is connected to the lifting rope 600. When the lifting rope 600 is lifted and tightened, the anti-rotation limiter structure and the anti-rotation mating structure cooperate to prevent the lifting limiter 300 from rotating relative to the lifting mating part 400. This prevents the lifting assembly from rotating relative to the lifting device due to the pulling of the lifting rope 600, and also prevents the lifting device from rotating relative to the device to be lifted. This allows the lifting rope 600 to remain in the preset position during the lifting process, achieving a vertical increase of the entire lifting point and preventing the lifting rope 600 from hitting the transformer bushing 800, thus ensuring that the device to be lifted can be lifted smoothly.

[0031] The anti-rotation limiting structure and the anti-rotation mating structure can achieve anti-rotation mating in various ways. For example, the mating surfaces of the anti-rotation limiting structure and the anti-rotation mating structure can be set as non-circular curved surfaces, that is, the mating surfaces of the anti-rotation limiting structure and the anti-rotation mating structure can be one or more planes, such as polygons, or shapes combining planes and curved surfaces, such as semicircles or semi-ellipses, or shapes where multiple curved surfaces with different curvatures are smoothly connected, such as plum blossom shapes. In other words, the anti-rotation limiting structure has at least one anti-rotation limiting surface 321, and the anti-rotation mating structure has at least one anti-rotation mating surface 421. Through the contact mating of the anti-rotation limiting surface 321 and the anti-rotation mating surface 421, the anti-rotation mating between the lifting climbing mating component 400 and the lifting climbing limiting component 300 when the lifting climbing through hole 310 is passed is achieved.

[0032] The anti-rotation limiting structure and the anti-rotation mating structure can also achieve anti-rotation mating through a concave-convex fit. That is, one of the anti-rotation limiting structure and the anti-rotation mating structure is provided with at least one anti-rotation recess, and the other is provided with an anti-rotation protrusion that corresponds one-to-one with the anti-rotation recess. When the lifting mounting component 400 passes through the lifting through hole 310, the anti-rotation recess engages with the anti-rotation protrusion to achieve anti-rotation mating. Specifically, one of the anti-rotation limiting structure and the anti-rotation mating structure can be provided with a pin, and the other can be provided with a slot. When the lifting mounting component 400 passes through the lifting through hole 310, the pin and the slot engage to achieve anti-rotation mating between the lifting limiting component 300 and the lifting mounting component 400.

[0033] Of course, the above-mentioned anti-rotation methods of contact surface mating and concave-convex mating can be used in combination to further ensure the anti-rotation effect.

[0034] Please see Figure 1 and Figure 2 In one specific embodiment of this application, the lifting limit member 300 is disposed on the main body 100 of the device, and the anti-rotation limiting structure includes two anti-rotation limiting blocks 320. The two anti-rotation limiting blocks 320 are disposed at intervals on the side of the lifting through hole 310 away from the lifting device 200. In this way, when the lifting device 200 is pulled by the lifting rope 600, the anti-rotation limiting structure and the anti-rotation matching structure can move towards each other, thereby making a tight fit.

[0035] It should be noted that an anti-rotation limiting block 320 can also be set on the side of the lifting through hole 310 near the lifting device 200. For example, when the lifting limiting member 300 is set on the lifting device to be lifted, the lifting mating member 400 needs to pass through the lifting through hole 310 and move upward relative to the lifting limiting member 300. In this case, setting an anti-rotation limiting block 320 on the side of the lifting through hole 310 near the lifting device 200 can make the anti-rotation mating structure and the anti-rotation limiting structure cooperate better.

[0036] Alternatively, anti-rotation limit blocks 320 can be installed on the side of the lifting hole 310 near the lifting device 200 and on the side away from the lifting device 200.

[0037] like Figure 1 and Figure 2 As shown in one embodiment of this application, the opposing surfaces of the two anti-rotation limiting blocks 320 are anti-rotation limiting surfaces 321. The distance between the two anti-rotation limiting surfaces 321 decreases as the distance between them and the lifting device 200 increases. The anti-rotation engagement structure includes two anti-rotation engagement surfaces 421 arranged in opposite directions. The included angle between the two anti-rotation engagement surfaces 421 is the same as the included angle between the two anti-rotation limiting surfaces 321. The two anti-rotation engagement surfaces 421 and the two anti-rotation limiting surfaces 321 are in one-to-one contact engagement. Thus, when the lifting device 200 is pulled by the lifting rope 600, the structure of the anti-rotation limiting structure, in which the distance between the two anti-rotation limiting surfaces 321 gradually decreases as the distance between them and the lifting device 200 increases, allows it to further tighten into the anti-rotation engagement structure, thereby achieving anti-rotation engagement between the two.

[0038] Please see Figure 2 A lifting clamp 400 is installed on the device to be lifted. The lifting clamp 400 includes a lifting shaft 410 and a lifting clamp plate 420. The lifting clamp plate 420 is located at one end of the lifting shaft 410, and the other end of the lifting shaft 410 is connected to a lifting base 430. The lifting base 430 is connected to the device to be lifted or is integrated with the device to be lifted. The lifting clamp plate 420 has two anti-rotation mating surfaces 421. The axial length of the lifting shaft 410 is greater than the thickness of the main body 100 of the device. Figure 2 As can be seen from the above, in this application, the circumferential surface of the lifting plate 420 is formed by two anti-rotation mating surfaces 421 and two arc-shaped surfaces, making the shape of the lifting plate 420 resemble a fan-shaped structure. Correspondingly, in this application, as shown... Figure 1 As shown, the outline of the lifting plate 420 is the same as that of the lifting through hole 310, and the cross-sectional area of ​​the lifting plate 420 is slightly smaller than that of the lifting through hole 310, so that the lifting plate 420 can pass through the lifting through hole 310.

[0039] To prevent the lifting clamp 400 from slipping out of the lifting through hole 310 after being subjected to force, in one embodiment of this application, the cross-sectional area of ​​the lifting clamp plate 420 is larger than the cross-sectional area of ​​the lifting shaft 410, so as to form a backstop limiting surface between the lifting clamp plate 420 and the lifting shaft 410. In this way, when the lifting clamp plate 420 passes through the lifting through hole 310, since the diameter of the lifting shaft 410 is much smaller than the diameter of the lifting through hole 310, the lifting clamp plate 420 will be misaligned relative to the lifting through hole 310, so that the backstop limiting surface and the lifting limiting member 300 make contact with the surface of the lifting clamp 400 on the side where the lifting clamp 400 passes through the lifting through hole 310, thereby preventing the lifting clamp 400 from slipping out of the lifting through hole 310.

[0040] It is foreseeable that when the lifting assembly 400 passes through the lifting through hole 310, since the length of the lifting shaft 410 is greater than the thickness of the main body 100, the lifting assembly 400 is prone to swing relative to the lifting limit member 300 after being subjected to force, which may cause it to slip out of the lifting through hole 310. To avoid this phenomenon, in one embodiment of this application, the lifting limit member 300 is provided with an anti-slip structure on the side of the lifting assembly 400 that protrudes from the lifting through hole 310. The anti-slip structure is used to cooperate with the lifting clamp plate 420 to prevent the lifting clamp plate 420 from swinging relative to the lifting limit member 300 and slipping out of the lifting through hole 310 after the lifting assembly 400 is subjected to force.

[0041] Specifically, please refer to Figure 1 and Figure 2 The anti-detachment structure includes a limiting plate 500, which is detachably disposed on the lifting climbing limiting member 300. The limiting plate 500 is disposed between the lifting climbing plate 420 and the lifting climbing limiting member 300 to prevent the lifting climbing plate 420 from moving relative to the lifting climbing limiting member 300 along the axial direction of the lifting climbing shaft 410.

[0042] During hoisting, the limiting plate 500 is not installed on the hoisting limiting member 300, allowing the hoisting clamping plate 420 to pass through the hoisting through hole 310. Then, the limiting plate 500 is installed between the hoisting clamping plate 420 and the hoisting limiting member 300. The thickness of the limiting plate 500 is slightly less than the difference between the axial length of the hoisting shaft 410 and the thickness of the device body 100. By placing the limiting plate 500 between the hoisting clamping plate 420 and the device body 100, the hoisting mating member 400 can be effectively prevented from swinging relative to the hoisting limiting member 300 after being subjected to force, thereby preventing the hoisting clamping plate 420 from slipping out of the hoisting through hole 310.

[0043] To further optimize the above technical solution, in one embodiment of this application, the limiting plate 500 partially covers the lifting through hole 310. Since the cross-sectional area of ​​the lifting through hole 310 is slightly larger than the cross-sectional area of ​​the lifting clamping plate 420, when the lifting through hole 310 is partially covered by the limiting plate 500, the lifting clamping plate 420 cannot exit the lifting through hole 310 before the limiting plate 500 is removed, thereby improving the stability of the fit between the lifting limiting member 300 and the lifting mating member 400.

[0044] Please see Figure 1The limiting plate 500 is mounted on the lifting limiting member 300 by at least two threaded fasteners, that is, the limiting plate 500 is mounted on the device body 100 by at least two threaded fasteners. The threaded fasteners can be only bolts, that is, through holes need to be provided in the limiting plate 500 and threaded holes need to be provided in the device body 100. The bolt passes through the through holes and engages with the threaded holes to fix the limiting plate 500 to the device body 100. The threaded fasteners can also include bolts and nuts adapted to the bolts. In this case, through holes need to be provided in both the limiting plate 500 and the device body 100. The bolt passes through the through holes in both the limiting plate 500 and the device body 100 and engages with the nuts to fix the limiting plate 500 to the device body 100.

[0045] To further optimize the above technical solution, in order to make the lifting point of the lifting device adjustable to adapt to different usage scenarios, in one embodiment of this application, the device body 100 adopts a length-adjustable structure, that is, the device body 100 includes at least two movable components, and two adjacent movable components are connected in a preset direction in an adjustable manner, so that the length of the device body 100 is adjustable in the preset direction. The lifting device 200 and the cooperating structure are located at both ends of the device body 100 along the preset direction, so that the distance between the lifting device 200 and the cooperating structure is adjustable as the length of the device body 100 changes.

[0046] By making the length of the main body 100 of the device adjustable, the position of the hoisting point can be adjusted, so that the hoisting device provided in this application embodiment can be applied to transformers 700 of various specifications and improve the stability of hoisting.

[0047] like Figure 1 As shown, one of the two adjacent movable components is provided with a slide groove 121, and the other of the two adjacent movable components is slidably disposed in the slide groove 121. The slide groove 121 is formed by two symmetrically arranged L-shaped plates and the movable component together. The longitudinal part of the L-shaped plate is connected to one side edge of the movable component parallel to the preset direction, and the transverse part of the L-shaped plate extends to the other side edge of the movable component parallel to the preset direction.

[0048] Please see Figure 1 In one specific embodiment, the device body 100 includes a first movable member 110 and a second movable member 120. The second movable member 120 is provided with a sliding groove 121, and a lifting limit member 300 is provided at the end of the second movable member 120 away from the first movable member 110. The first movable member 110 is slidably disposed in the sliding groove 121, and a lifting device 200 is provided at the end of the first movable member 110 away from the second movable member 120.

[0049] In order to fix two adjacent movable components relative to each other, in one embodiment of this application, a positioning mechanism is provided between two adjacent movable components. The positioning mechanism is used to fix the two adjacent movable components relative to each other.

[0050] It should be noted that, in addition to sliding fit to achieve adjustable connection in a preset direction, adjacent moving parts can also be connected by threads.

[0051] Specifically, please refer to Figure 1 The positioning mechanism includes a first pin groove 112, a second pin groove 122, and a locking pin. One of two adjacent movable components is provided with at least one first pin groove 112, and the other of two adjacent movable components is provided with a plurality of second pin grooves 122 arranged at intervals in a preset direction. The locking pin cooperates with the first pin groove 112 and the second pin groove 122 respectively to fix the two adjacent movable components relative to each other.

[0052] like Figure 1 In the embodiment shown, a plurality of first pin slots 112 are provided on the first movable component 110, and a plurality of second pin slots 122 are provided on the second movable component 120.

[0053] like Figure 1 As shown, in one embodiment of this application, the position of the lifting device 200 relative to the device body 100 is adjustable along a preset direction. During the lifting process, by adjusting the position of the lifting device 200 relative to the device body 100 in the preset direction, the position of the lifting point can be finely adjusted, which can better ensure the stability of the lifting process of the device to be lifted.

[0054] Specifically, in one embodiment of this application, the lifting device 200 is threadedly connected to the device body 100, that is, a stud is provided on one of the lifting device 200 and the device body 100, and a threaded sleeve 111 is provided on the other. The axial directions of the stud and the threaded sleeve 111 are both preset directions. Through the cooperation of the threaded sleeve 111 and the stud, the position adjustment of the lifting device 200 relative to the device body 100 is realized.

[0055] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "a," and / or "the" are not specifically singular and may include the plural. Generally, the terms "comprising" and "including" only indicate the inclusion of expressly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements. An element defined by the phrase "comprising an..." does not exclude the presence of other identical elements in the process, method, product, or apparatus that includes the element.

[0056] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0057] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0058] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A hoisting device, characterized in that, include: Main body of the device (100); A lifting device (200) is disposed at one end of the main body (100) of the device; The lifting assembly includes a lifting limiter (300) and a lifting mating member (400). One of the lifting limiter (300) and the lifting mating member (400) is disposed at the other end of the main body (100) of the device, and the other is disposed at the device to be lifted. The lifting limiter (300) is provided with a lifting through hole (310), and an anti-rotation limiting structure is provided on the side of the lifting mating member (400) that passes through the lifting through hole (310). The lifting mating member (400) is provided with an anti-rotation mating structure. The anti-rotation limiting structure engages with the anti-rotation mating structure when the lifting mating member (400) passes through the lifting through hole (310) so that the lifting limiter (300) and the lifting mating member (400) are engaged in an anti-rotation mating.

2. The hoisting device according to claim 1, characterized in that, The anti-rotation limiting structure has at least one anti-rotation limiting surface (321), and the anti-rotation mating structure has at least one anti-rotation mating surface (421). The anti-rotation limiting surface (321) contacts the anti-rotation mating surface (421) to engage with the lifting mounting component (400) when the lifting mounting through hole (310). And / or, one of the anti-rotation limiting structure and the anti-rotation mating structure is provided with at least one anti-rotation recess, and the other is provided with an anti-rotation protrusion corresponding to the anti-rotation recess. The anti-rotation recess engages with the anti-rotation protrusion to prevent rotation when the lifting fitting (400) passes through the lifting through hole (310).

3. The hoisting device according to claim 2, characterized in that, The anti-rotation limiting structure includes two anti-rotation limiting blocks (320). The two anti-rotation limiting blocks (320) are arranged at intervals on the side of the lifting through hole (310) away from the lifting device (200). The surfaces of the two anti-rotation limiting blocks (320) facing each other are the anti-rotation limiting surfaces (321). The distance between the two anti-rotation limiting surfaces (321) decreases as the distance between them and the lifting device (200) increases. The anti-rotation fit structure includes two anti-rotation fit surfaces (421) arranged in opposite directions. The included angle between the two anti-rotation fit surfaces (421) is the same as the included angle between the two anti-rotation limiting surfaces (321). The two anti-rotation fit surfaces (421) and the two anti-rotation limiting surfaces (321) are in one-to-one contact fit.

4. The hoisting device according to claim 3, characterized in that, The lifting assembly (400) includes a lifting shaft (410) and a lifting plate (420). The lifting plate (420) is disposed at one end of the lifting shaft (410) and has two anti-rotation mating surfaces (421).

5. The hoisting device according to claim 4, characterized in that, The outer contour of the hanging plate (420) is the same as that of the hanging through hole (310), and the cross-sectional area of ​​the hanging plate (420) is smaller than that of the hanging through hole (310).

6. The hoisting device according to claim 4, characterized in that, The lifting limiter (300) has an anti-detachment structure on the side of the lifting mating part (400) that protrudes from the lifting through hole (310). The anti-detachment structure is used to cooperate with the lifting clamp (420) to prevent the lifting clamp (420) from detaching from the lifting through hole (310).

7. The hoisting device according to claim 6, characterized in that, The anti-detachment structure includes a limiting plate (500), which is detachably disposed on the lifting limit member (300). The limiting plate (500) is disposed between the lifting plate (420) and the lifting limit member (300) to prevent the lifting plate (420) from moving relative to the lifting limit member (300) along the axial direction of the lifting shaft (410).

8. The hoisting device according to claim 7, characterized in that, The limiting plate (500) partially covers the hanging through hole (310).

9. The hoisting device according to any one of claims 1-8, characterized in that, The main body (100) of the device includes at least two movable components, and two adjacent movable components are connected in a preset direction so that the length of the main body (100) in the preset direction is adjustable. The lifting device (200) and the mating structure are located at both ends of the main body (100) along the preset direction so that the distance between the lifting device (200) and the mating structure is adjustable as the length of the main body (100) changes.

10. The hoisting device according to claim 9, characterized in that, A positioning mechanism is provided between two adjacent movable components, the positioning mechanism being used to fix the two adjacent movable components relative to each other.

11. The hoisting device according to claim 10, characterized in that, The positioning mechanism includes: The first pin groove (112) is provided in one of the two adjacent movable components. The second pin groove (122) is one of the two adjacent movable components, and a plurality of second pin grooves (122) are arranged at intervals in the preset direction. Locking pins engage with the first pin groove (112) and the second pin groove (122) respectively, so that the two adjacent movable components are relatively fixed.

12. The hoisting device according to claim 9, characterized in that, The position of the lifting device (200) relative to the main body (100) is adjustable along the preset direction.

13. The hoisting device according to claim 12, characterized in that, The lifting device (200) is threadedly connected to the main body (100) of the device.

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