Lifting device and lifting system

Abstract

The utility model relates to the technical field of hoisting equipment, in particular to a hoisting device and a hoisting system. The lifting device comprises a connecting base and a lifting assembly, and the lifting assembly comprises a lifting hook and a balance weight part. The upper end of the lifting hook is hinged to the connecting base in the first direction, and one end of the balance weight piece is hinged to the lifting hook in the first direction so that the rotation angle of the balance weight piece can be adjusted, and then the gravity center position of the lifting assembly can be adjusted. When the balance weight piece is located at the upper limit position, the lifting hook is in a vertical state, and when the balance weight piece is located at the lower limit position, the lifting hook deviates to the side away from the balance weight piece. The lifting device and the lifting system provided by the utility model solve the defect that the lifting hook is difficult to automatically fall off from equipment when the existing lifting hook finishes resetting the lifting equipment, and the lifting system provided by the utility model can also improve the positioning accuracy of the lifting hook.

Description

TECHNICAL FIELD

[0001] The utility model relates to hoisting equipment technical field especially, relates to a kind of hoisting device and hoisting system. BACKGROUND

[0002] Submersible pumps and submersible mixers and other submersible equipment are widely used in sewage treatment plants. Typically, these devices are equipped with dedicated coupling devices, guide rail guide chains and lifting equipment to facilitate later maintenance and repair. However, for various reasons, these lifting devices can be damaged. For example, improper material selection, inadequate maintenance, and environmental factors such as strong corrosion can cause the guide chain to corrode and break. In addition, improper operation can also cause the guide chain to slip.

[0003] When the equipment is hoisted on shore for repair, it needs to be reset. However, in the prior art, the lifting hook is difficult to automatically fall off the equipment when the hoisting equipment is reset. SUMMARY

[0004] The utility model provides a kind of hoisting device and hoisting system to solve the defect that existing lifting hook is difficult to automatically fall off the equipment when hoisting equipment is reset.

[0005] The utility model provides a kind of hoisting device in one aspect, comprising: connecting seat and hoisting assembly, the hoisting assembly includes lifting hook and counterweight.

[0006] The upper end of the lifting hook is hinged to the connecting seat in the first direction, and one end of the counterweight is hinged to the lifting hook in the first direction to adjust the rotation angle of the counterweight, thereby adjusting the center of gravity position of the hoisting assembly.

[0007] When the counterweight is located at the upper limit position, the lifting hook is in a vertical state, and when the counterweight is located at the lower limit position, the lifting hook is biased away from the counterweight side.

[0008] According to the hoisting device provided by the utility model, the upper limit structure and the lower limit structure are arranged on the lifting hook, and the upper limit structure and the lower limit structure are used to limit the rotation angle of the counterweight.

[0009] According to the hoisting device provided by the utility model, the upper limit structure and the lower limit structure are both limiting protrusions.

[0010] According to the hoisting device provided by the utility model, one end of the counterweight is hinged to the lifting hook in the first direction.

[0011] According to the hoisting device, the inner wall of the connecting portion is attached to the side wall of the lifting hook, and the inner wall of the connecting portion and / or the side wall of the lifting hook is provided with a friction damping structure.

[0012] According to the hoisting device, the inner wall of the connecting portion is attached to the side wall of the lifting hook, and the inner wall of the connecting portion and / or the side wall of the lifting hook is provided with a friction damping structure.

[0013] According to the hoisting device, the connecting seat is provided with a lifting ring.

[0014] The utility model discloses a hoisting system on the other aspect, including hoisting device and as any one described above hoisting device.

[0015] The lifting device comprises a guide rail, a guide rod, a sliding block and a lifting chain, the guide rail is arranged vertically, the sliding block is in sliding cooperation with the guide rail, the guide rod is connected with the sliding block, the connecting seat is in sliding cooperation with the guide rod, and the lifting chain is connected with the connecting seat.

[0016] According to the hoisting system, the connecting seat is sleeved on the guide rod, and further comprises a locking screw, the locking screw is in threaded cooperation with the connecting seat to lock the connecting seat when the locking screw abuts against the guide rod.

[0017] According to the hoisting system, the guide rod is provided with a limiting block, and the connecting seat is located between the sliding block and the limiting block.

[0018] The hoisting device provided by the utility model, through setting counterweight on the lifting hook, the position of the counterweight can be adjusted along the first position, and then the gravity center position of the hoisting assembly is adjusted, so that when the counterweight is located at the upper limit position, the lifting hook is in the vertical state, and when the counterweight is located at the lower limit position, the lifting hook is inclined to the side far away from the counterweight, which can be used for hoisting and resetting operation of the equipment to be hoisted.

[0019] The hoisting system provided by the utility model, through setting the lifting device and the hoisting device, when hoisting, the equipment to be hoisted is positioned by using sonar and other devices, after positioning, the position of the lifting hook is overlapped with the projection position of the hoisting point of the equipment by the sliding connecting seat, when the lifting chain is lowered, under the guidance of the guide rail, the lifting hook can be accurately positioned at the equipment to be hoisted and is not affected by liquid flow, and the positioning precision and operation efficiency are improved.

[0020] Additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0022] Figure 1 It is one of the schematic diagram of the hoisting device provided by the utility model embodiment.

[0023] Figure 2 It is the second schematic diagram of the hoisting device provided by the utility model embodiment.

[0024] Figure 3 is a schematic view of a counterweight in a hoisting device provided by the embodiment of the present utility model.

[0025] Figure 4 is a schematic view of a hoisting system provided by the embodiment of the present utility model.

[0026] Reference signs:

[0027] 10, hoisting device; 110, connecting seat; 120, hoisting assembly; 121, lifting hook; 122, counterweight; 1221, connecting part; 1222, counterweight part; 130, hoisting ring; 140, locking screw; 20, lifting device; 210, guide rod; 220, sliding block; 230, limiting block. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the present utility model more clear, the technical scheme in the present utility model will be described clearly and completely below in combination with the drawings in the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without making creative efforts fall within the protection scope of the present utility model.

[0029] In the description of the embodiments of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship shown in the drawings, which is only for the convenience of describing the embodiments of the present utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0030] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present utility model can be understood according to the specific circumstances.

[0031] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature can be "above", "over" and "on" the second feature, which can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature can be "under", "below" and "under" the second feature, which can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0032] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0033] The following will be described in detail Figures 1 to 4 The present application provides a hoisting device and a hoisting system.

[0034] Referring to Figure 1 and Figure 2 The hoisting device 10 provided by the embodiments of the present application comprises a connecting seat 110 and a hoisting assembly 120, and the hoisting assembly 120 comprises a lifting hook 121 and a counterweight 122.

[0035] The upper end of the lifting hook 121 is hinged to the connecting seat 110 along a first direction, and one end of the counterweight 122 is hinged to the lifting hook 121 along the first direction, so as to adjust the rotation angle of the counterweight 122, and further adjust the center of gravity position of the hoisting assembly 120.

[0036] When the counterweight 122 is located at the upper limit position, the lifting hook 121 is in a vertical state, and when the counterweight 122 is located at the lower limit position, the lifting hook 121 is deviated to the side away from the counterweight 122.

[0037] The hoisting device 10 provided by the utility model, through setting the counterweight 122 on the lifting hook 121, can adjust the position of the counterweight 122 along the first direction, and further adjust the gravity center position of the hoisting assembly 120, so that when the counterweight 122 is located at the upper limit position, the lifting hook 121 is in the vertical state, and when the counterweight 122 is located at the lower limit position, the lifting hook 121 is inclined to the side away from the counterweight 122, which can be used for the hoisting and resetting operation of the equipment to be hoisted. The automatic unhooking can be realized after the hoisting is completed, the hoisting efficiency is improved obviously, and the defect that the lifting hook 121 is difficult to automatically fall off from the equipment when the resetting of the hoisting equipment is completed is solved.

[0038] Specifically, during hoisting, the counterweight 122 is rotated to the upper limit position, the lifting hook 121 is in the vertical state, the lifting chain is loosened, and the hoisting device 10 sinks to the equipment to be hoisted under the action of gravity, and when the lifting hook 121 touches the hoisting point of the equipment to be hoisted, the lifting hook 121 and the hoisting point are automatically coupled under the action of gravity when the hoisting device 10 is lifted, and the equipment to be hoisted is smoothly lifted. During resetting, the counterweight 122 is rotated to the lower limit position, the lifting hook 121 is in the inclined state inclined to the side away from the counterweight 122, and after the lifting hook 121 is coupled with the lifting chain, during the lowering process of the equipment to be reset, because the weight of the equipment to be reset is much greater than the weight of the counterweight 122, the chain guide is tensioned, and the movable lifting hook 121 is in the vertical state, and when the equipment to be reset is in place, the chain guide is relaxed, and the movable lifting hook 121 can recover to the inclined state inclined to the side away from the counterweight 122 under the action of the counterweight 122, so that the lifting hook 121 and the hoisting point of the equipment are automatically separated.

[0039] It should be noted that the above-mentioned "the upper end of the lifting hook 121 is hinged along the first direction with the connecting seat 110" specifically means that the upper end of the lifting hook 121 is hinged along the horizontal direction with the connecting seat 110 in the connecting seat 110, Figure 1 So that the lifting hook 121 can swing horizontally relative to the connecting seat 110. Similarly, the above-mentioned "one end of the counterweight 122 is hinged along the first direction with the lifting hook 121" specifically means that one end of the counterweight 122 is hinged along the horizontal direction with the lifting hook 121 in the lifting hook 121, Figure 1 So that the counterweight 122 can swing horizontally relative to the lifting hook 121 to realize angle adjustment, so as to change the gravity center position of the hoisting assembly 120.

[0040] The lifting assembly 120 comprises a lifting hook 121 and a counterweight 122, and the center of gravity of the lifting assembly 120 is always kept on a vertical straight line where the lifting hook 121 is hingedly connected to the connecting seat 110, so that when the counterweight 122 rotates towards a side away from the lifting hook 121 (a direction of an upper limit position), the lifting hook 121 moves towards a side away from the counterweight 122, and when the counterweight 122 rotates towards a side close to the lifting hook 121 (a direction of a lower limit position), the lifting hook 121 moves towards a side away from the counterweight 122, so as to realize the adjustment of the rated posture of the lifting hook 121, and the lifting and resetting operations of the equipment to be lifted can be realized, and automatic unhooking is facilitated.

[0041] According to some embodiments of the present application, upper and lower limiting structures are arranged on the lifting hook 121, and the upper and lower limiting structures are used for limiting the rotation angle of the counterweight 122. By arranging the upper and lower limiting structures, the rotation angle of the counterweight 122 can be limited, so that when the counterweight 122 rotates to the position of the upper limiting structure, the lifting hook 121 is in a vertical state, and when the counterweight 122 rotates to the position of the lower limiting structure, the lifting hook 121 is inclined to a side away from the counterweight 122, so as to accurately position the working position of the counterweight 122, and the counterweight 122 is prevented from deviating from the preset rotation angle, so as to prevent the posture of the lifting hook 121 from being out of control.

[0042] Specifically, the upper and lower limiting structures can be limiting blocks, limiting protrusions or the like.

[0043] The positions of the upper and lower limiting structures can be obtained according to simulation. For example, in the simulation software, the posture of the lifting hook 121 is observed by rotating the counterweight 122, and when the counterweight 122 rotates to a first angle, if the lifting hook 121 is in a vertical state, the position of the counterweight 122 is calibrated, and an upper limiting structure is arranged at a position adjacent to the counterweight 122, and similarly, when the counterweight 122 rotates to a second angle, if the lifting hook 121 is inclined to a side away from the counterweight 122 to a certain extent (which can be determined according to experience), the position of the counterweight 122 is calibrated, and a lower limiting structure is arranged at a position adjacent to the counterweight 122.

[0044] According to some embodiments of the present application, the upper and lower limiting structures are limiting protrusions (not shown in the figure). By arranging the upper and lower limiting structures as limiting protrusions, the structure of the lifting hook 121 can be simplified, and the lifting hook 121 is facilitated to be manufactured.

[0045] Specifically, the limiting protrusion and the body of the hook 121 can be integrally arranged, facilitating one-time molding, and without the need for additional structures connecting the upper and lower limiting structures on the body of the hook 121.

[0046] According to some embodiments of the present application, one end of the counterweight 122 is dampedly hinged with the hook 121 along the first direction. By dampedly hinging one end of the counterweight 122 with the hook 121 along the first direction, the counterweight 122 can be positionally fixed by relying on the frictional damping at the hinged connection with the hook 121 when rotated to a certain angle, so that it can be kept at the current position under the action of only its own gravity.

[0047] Specifically, the counterweight 122 and the hook 121 can be dampedly hinged through a damping shaft.

[0048] Referring to Figure 3 According to some embodiments of the present application, the counterweight 122 includes two connecting portions 1221 and a counterweight portion 1222, the two connecting portions 1221 are symmetrically arranged on both sides of the counterweight portion 1222, and the two connecting portions 1221 are both hinged with the hook 121, one of the connecting portions 1221 is connected with the outer surface of the hook 121, and the other connecting portion 1221 is connected with the inner surface of the hook 121. By arranging the counterweight 122 in the above-mentioned U-shaped cross-section form, the connection between the counterweight 122 and the hook 121 can be more stable and compact, and the counterweight 122 can keep the hook 121 balanced in the direction perpendicular to the hook 121, so that the plane where the hook 121 is located and the connecting seat 110 always keep perpendicular to each other.

[0049] According to some embodiments of the present application, the inner wall of the connecting portion 1221 is attached to the side wall of the hook 121, and the inner wall of the connecting portion 1221 and / or the side wall of the hook 121 is provided with a frictional damping structure. By attaching the inner wall of the connecting portion 1221 to the side wall of the hook 121 and providing the inner wall of the connecting portion 1221 and / or the side wall of the hook 121 with a frictional damping structure, the counterweight 122 can be positionally fixed by relying on the frictional damping between the connecting portion 1221 and the side wall of the hook 121 when rotated to a certain angle, so that it can be kept at the current position under the action of only its own gravity.

[0050] Specifically, the frictional damping structure can be a frictional surface with a pattern.

[0051] In some embodiments, the connecting portion 1221 can be an elastic connecting portion 1221 with a certain elastic deformation capacity. In the initial state, it is offset to the connecting portion 1221 on the opposite side to a certain extent. When the counterweight 122 is installed on the hook 121, the connecting portion 1221 and the outer wall of the hook 121 can be in close contact under the action of elastic deformation, thereby increasing the frictional damping between the two and improving the stability of the counterweight 122.

[0052] Referring to Figure 1 and Figure 2 As shown in the figure, according to some embodiments of the present application, the connecting seat 110 is provided with a lifting ring 130. By providing the lifting ring 130 on the connecting seat 110, it can be convenient to connect with the lifting chain through the lifting ring 130, and it is convenient for lifting.

[0053] Specifically, the lifting ring 130 is arranged on the top of the connecting seat 110, which is convenient for connecting with the lifting chain. The number of lifting rings 130 can be single or multiple. When a single lifting ring 130 is arranged on the connecting seat 110, the single lifting ring 130 is arranged at the center position of the top of the connecting seat 110. When multiple lifting rings 130 are arranged on the connecting seat 110, the multiple lifting rings 130 can be arranged symmetrically along the center of the top of the connecting seat 110 to ensure the stability during lifting. For example, when two lifting rings 130 are arranged, the two lifting rings 130 can be symmetrically arranged on both sides of the top of the connecting seat 110.

[0054] The lifting system provided by the present application will be described below. The lifting system described below can be correspondingly referred to the lifting device 10 described above.

[0055] Referring to Figure 4 The lifting system provided by the present application comprises a lifting device 20 and a lifting device 10 as described in any one of the above embodiments.

[0056] The lifting device 20 comprises a guide rail (not shown in the figure), a guide rod 210, a sliding block 220 and a lifting chain (not shown in the figure). The guide rail is arranged vertically. The sliding block 220 is in sliding cooperation with the guide rail. The guide rod 210 is connected with the sliding block 220. The connecting seat 110 is in sliding cooperation with the guide rod 210. The lifting chain is connected with the connecting seat 110.

[0057] The lifting system provided by the present application comprises a lifting device 20 and a lifting device 10, which are arranged on the lifting ring 130. When lifting, the device to be lifted is positioned by using a sonar device or the like. After positioning, the position of the hook 121 is made to coincide with the projection position of the lifting point of the device by sliding the connecting seat 110. When the lifting chain is lowered, the hook 121 can be accurately positioned at the device to be lifted without being affected by the flow of liquid under the guidance of the guide rail, thereby improving the positioning accuracy and the operation efficiency.

[0058] Referring toFigure 4 As shown, according to some embodiments of the present application, the connecting seat 110 is sleeved on the guide rod 210; further comprising a locking screw 140, the locking screw 140 is threadedly matched with the connecting seat 110, so as to lock the connecting seat 110 when the locking screw 140 abuts against the guide rod 210. By sleeving the connecting seat 110 on the guide rod 210, and setting the locking screw 140, the position of the connecting seat 110 can be fixed after positioning the connecting seat 110, preventing it from slipping during hoisting.

[0059] Referring to Figure 4 As shown, according to some embodiments of the present application, the guide rod 210 is provided with a limiting block 230, and the connecting seat 110 is located between the sliding block 220 and the limiting block 230. By setting the limiting block 230 on the guide rod 210, and setting the connecting seat 110 between the sliding block 220 and the limiting block 230, the connecting seat 110 can be limited, preventing it from falling off the guide rod 210.

[0060] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A hoisting device, characterized in that include: A connecting base and a lifting assembly, the lifting assembly including a hook and a counterweight; The upper end of the hook is hinged to the connecting seat along the first direction, and one end of the counterweight is hinged to the hook along the first direction to adjust the rotation angle of the counterweight, thereby adjusting the center of gravity position of the lifting assembly. When the counterweight is at its upper limit position, the hook is in a vertical position; when the counterweight is at its lower limit position, the hook is tilted away from the counterweight.

2. The hoisting device of claim 1, wherein The hook is provided with an upper limit structure and a lower limit structure at intervals. Both the upper limit structure and the lower limit structure are used to limit the rotation angle of the counterweight.

3. A hoisting device according to claim 2, characterised in that Both the upper limit structure and the lower limit structure are limit protrusions.

4. The hoisting device of claim 1, wherein One end of the counterweight is damped and hinged to the hook along a first direction.

5. The hoisting device of claim 1, wherein The counterweight includes two connecting parts and a counterweight part. The two connecting parts are symmetrically arranged on both sides of the counterweight part, and both connecting parts are hinged to the hook.

6. The hoisting device of claim 5, wherein, The inner wall of the connecting part is fitted to the side wall of the hook, and the inner wall of the connecting part and / or the side wall of the hook are provided with a friction damping structure.

7. The hoisting device of claim 1, wherein The connecting seat is equipped with a lifting ring.

8. A hoisting system characterized by, Includes a lifting device and a hoisting device as described in any one of claims 1 to 7; The lifting device includes a guide rail, a guide rod, a slider, and a lifting chain. The guide rail is arranged vertically, the slider is slidably engaged with the guide rail, the guide rod is connected to the slider, the connecting seat is slidably engaged with the guide rod, and the lifting chain is connected to the connecting seat.

9. The hoisting system of claim 8, wherein, The connecting seat is sleeved on the guide rod; It also includes a locking screw that is threaded into the connector to lock the connector when the locking screw abuts against the guide rod.

10. A hoisting system according to claim 8 or 9, characterized in that The guide rod is provided with a limiting block, and the connecting seat is located between the slider and the limiting block.

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