Lifting appliance

Abstract

The utility model provides a lifting appliance which comprises a connecting mechanism, and the connecting mechanism is configured to be allowed to be relatively fixed together with lifting equipment for outputting acting force. Wherein a hoisting part which extends outwards in the radial direction and is allowed to be relatively fixed together with an object to be hoisted is arranged at the end part of the connecting mechanism, and the hoisting part is configured to be allowed to stretch out and draw back in the axis direction of the hoisting part and is used for adjusting the radial length of the hoisting part, so that the force arm length of the hoisting part relative to the object to be hoisted is adjusted. Through the mode, the length of the force arm of the hoisting part relative to the to-be-hoisted object can be correspondingly adjusted according to the weight distribution and the shape of the to-be-hoisted object, so that the device can hoist the to-be-hoisted object in a balanced mode, and the to-be-hoisted object is uniformly stressed.

Description

TECHNICAL FIELD

[0001] The utility model relates to hoisting technical field especially, relates to a kind of lifting appliance. BACKGROUND

[0002] In the field of industrial production, construction, logistics transportation, hoisting equipment is widely used in the handling of heavy objects. In the hoisting process, the shape, weight distribution and other factors of the object to be hoisted directly affect the safety and efficiency of hoisting.

[0003] At present, the common hoisting technology mainly relies on lifting appliance with fixed structure. Although this lifting appliance can complete the hoisting work, it has the problem of fixed force arm length, which is difficult to adapt to different sizes or shapes of objects to be hoisted. When hoisting irregular-shaped objects or objects with uneven weight distribution, uneven stress may occur due to mismatched force arm length, which may even cause overturning risk. SUMMARY

[0004] In view of the deficiencies in the prior art, the utility model provides a lifting appliance. In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A lifting appliance includes a connecting mechanism, which is configured to be fixed relative to a hoisting device that outputs force,

[0006] wherein a hoisting part extending radially outward is provided at the end of the connecting mechanism and is allowed to be fixed relative to the object to be hoisted, the hoisting part is configured to be telescopic along its axial direction to adjust the radial length of the hoisting part, and further adjust the force arm length of the hoisting part relative to the object to be hoisted.

[0007] Further, the connecting mechanism is provided in the form of a rod-shaped structure, and the hoisting parts are respectively located at both ends of the connecting mechanism and are configured to be telescopic along their axial directions.

[0008] Further, the hoisting part includes a first rod body provided at the end of the connecting mechanism and fixed relative to the connecting mechanism, and a second rod body provided in the first rod body, the second rod body is configured to move along the path formed by the inner wall of the first rod body.

[0009] Further, a plurality of first through holes are provided on the first rod body along its axial direction, and a plurality of second through holes are provided on the second rod body along its axial direction, the first through holes and the second through holes are configured to correspond to each other, and a fixing pin is provided in the first through hole and the second through hole in a selected manner, the fixing pin is used to fix the first rod body and the second rod body relative to each other.

[0010] Further, the first rod and the second rod are both configured in a circular shape, and the first rod is provided with an inner thread along the axial direction thereof, and the second rod is provided with an outer thread along the axial direction thereof, the inner thread and the outer thread are configured to be engaged with each other, so that the second rod can move along the axial direction of the first rod and be fixed relative to the first rod.

[0011] Further, the connecting mechanism is configured in a rod-shaped structure in the shape of a cross, and the hoisting parts are respectively located at the free ends of the connecting mechanism and are configured to be allowed to be extended and retracted along the axial direction thereof.

[0012] Further, the connecting mechanism comprises two oppositely arranged first connecting rods and a second connecting rod arranged between the two first connecting rods and used for connecting the two first connecting rods together, and the first connecting rod and the second connecting rod are respectively configured to be allowed to be extended and retracted along the axial direction thereof.

[0013] Further, the first connecting rod comprises a first fixed rod and a first movable rod arranged in the first fixed rod and configured to be allowed to move along the path configured in the first fixed rod, and the second connecting rod comprises a second fixed rod and a second movable rod arranged in the second fixed rod and configured to be allowed to move along the path configured in the second fixed rod.

[0014] Further, a plurality of first connecting holes are respectively arranged along the axial direction of the first fixed rod and the second fixed rod, a plurality of second connecting holes are respectively arranged along the axial direction of the first movable rod and the second movable rod, the first connecting holes and the second connecting holes are configured to correspond to each other, and a connecting pin is arranged in the first connecting hole and the second connecting hole in a selected manner, so as to fix the first fixed rod and the first movable rod and the second fixed rod and the second movable rod relative to each other.

[0015] Further, a hoisting rope is arranged in a selected manner on the upper end face of the connecting mechanism and is fixed relative to the hoisting device, the hoisting rope is arranged to allow the hoisting device to balance and hoist the connecting mechanism, and a binding rope is also arranged in a selected manner on the lower end face of the connecting mechanism, and the binding rope is arranged at the free end of the hoisting part and is used to be fixed relative to the object to be hoisted.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The connecting mechanism is provided in the utility model, and is configured to be fixed together with the hoisting device which applies force. Meanwhile, a hoisting part which extends radially outward and is allowed to be fixed together with the object to be hoisted is arranged at the end of the connecting mechanism, and the hoisting part is configured to be telescopic along the axial direction, so as to adjust the radial length of the hoisting part, and further adjust the length of the force arm of the hoisting part relative to the object to be hoisted. In this way, the length of the force arm of the hoisting part relative to the object to be hoisted can be adjusted according to the weight distribution and shape of the object to be hoisted, so that the device can hoist the object to be hoisted in a balanced manner, and the object to be hoisted is subjected to uniform force. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be further described below in combination with the drawings and embodiments:

[0019] Figure 1 It is a structural schematic view of the first embodiment of the utility model;

[0020] Figure 2 It is a structural schematic view of the third embodiment of the utility model;

[0021] Figure 3 It is a structural schematic view of the fourth embodiment of the utility model.

[0022] In the above drawings: the lifting appliance 100, the connecting mechanism 1, the first connecting rod 11, the first fixed rod 111, the first movable rod 112, the second connecting rod 12, the second fixed rod 121, the second movable rod 122, the first connecting hole 13, the second connecting hole 14, the hoisting part 2, the first rod body 21, the first through hole 211, the second rod body 22, the second through hole 221, the fixed pin 3, the connecting pin 4. DETAILED DESCRIPTION

[0023] The technical scheme in the utility model will be further described below in combination with the drawings and embodiments.

[0024] In order to better understand the purpose, structure and function of the utility model, the lifting appliance will be further described in detail below in combination with the drawings.

[0025] Figure 1 The overall structure of the lifting appliance 100 according to the utility model is schematically shown. In the embodiment as shown in the figure, Figure 1 The connecting mechanism 1 is configured to be fixed together with the hoisting device (not shown in the figure), and the hoisting device is arranged to apply vertical force to the connecting mechanism 1, so as to drive the connecting mechanism 1 to move in the vertical direction.

[0026] Meanwhile, as shown in the figure, Figure 1As shown, a lifting part 2 is arranged at the end of the connecting mechanism 1, and the lifting part 2 is configured to allow expansion and contraction along the axial direction thereof. In the illustrated embodiment, the lifting part 2 is configured to allow relative fixation with the object to be lifted (not shown in the figure).

[0027] In this way, the length of the force arm of the lifting part 2 relative to the object to be lifted can be adjusted according to the object to be lifted. Thus, the device 100 can keep the object to be lifted balanced during lifting, so that each force point of the object to be lifted is uniformly stressed, thereby avoiding excessive stress on some force points of the object to be lifted and causing damage to the object to be lifted.

[0028] In this arrangement, as shown, Figure 1 when the device 100 is needed to lift the object to be lifted, the device 100 is first arranged at the middle position of the upper end surface of the object to be lifted, and the connecting mechanism 1 is fixed relative to the lifting equipment (not shown in the figure).

[0029] Meanwhile, the length of the lifting part 2 is adjusted according to the object to be lifted until the force arm formed by the lifting part 2 enables the device 100 to lift the object to be lifted balanced. At this time, the lifting part 2 is fixed relative to the object to be lifted. Thus, the arrangement of the device 100 is completed.

[0030] Then, the lifting equipment (not shown in the figure) is started, and the lifting equipment continuously applies a vertical force to the connecting mechanism 1, thereby driving the connecting mechanism 1 to move in the vertical direction. In this process, the connecting mechanism 1 continuously transmits the force to the lifting part 2 and then to the object to be lifted (not shown in the figure) via the lifting part 2. Thus, the object to be lifted continuously moves in the vertical direction, thereby completing the lifting of the object to be lifted and keeping the object to be lifted balanced during lifting.

[0031] In one embodiment, as shown, Figure 1 the connecting mechanism 1 is arranged in a rod-like structure. In this embodiment, the connecting mechanism 1 is configured in a "I" shape. Meanwhile, as shown, Figure 1 the lifting parts 2 are arranged at the two ends of the connecting mechanism 1, and the lifting parts 2 are configured to allow expansion and contraction along the axial direction thereof. In this way, the lifting parts 2 at the two ends of the connecting mechanism 1 can adjust the length of the force arm of the lifting part 2 relative to the object to be lifted. Thus, the device 100 can further realize balanced lifting of the object to be lifted.

[0032] In the illustrated embodiment, as shown, Figure 1As shown, the hoisting part 2 includes a first rod body 21 arranged at the free end of the connecting mechanism 1 and fixed relative to the connecting mechanism 1, and a second rod body 22 arranged in the first rod body 21. In the embodiment, the second rod body 22 is configured to move along the path formed by the inner wall of the first rod body 21. In this way, the length of the second rod body 22 in the first rod body 21 can be adjusted, so as to adjust the length of the hoisting part 2, and further adjust the length of the force arm of the hoisting part 2 relative to the object to be hoisted.

[0033] According to a preferred embodiment of the present application, as shown in Figure 1 As shown, a plurality of first through holes 211 are arranged on the first rod body 21 along the axial direction thereof, and a plurality of second through holes 221 are arranged on the second rod body 22 along the axial direction thereof. The first through holes 211 correspond to the second through holes 221, and a fixing pin 3 is arranged in the first through hole 211 and the second through hole 221 in a selected manner. The fixing pin 3 is used to fix the first rod body 21 and the second rod body 22 relative to each other.

[0034] In this arrangement, as shown in Figure 1 When it is necessary to adjust the length of the force arm of the hoisting part 2 relative to the object to be hoisted, a force can be applied to the second rod body 22, so that the second rod body 22 moves outward along the path formed by the first rod body 21. In this way, the length of the second rod body 22 in the first rod body 21 can be adjusted, so as to adjust the length of the hoisting part 2, and further adjust the length of the force arm of the hoisting part 2 relative to the object to be hoisted.

[0035] Meanwhile, as shown in Figure 1 During the movement of the second rod body 22 along the path formed by the first rod body 21, the first through holes 211 on the first rod body 21 and the second through holes 221 on the second rod body 22 are corresponded to each other. At this time, the fixing pin 3 is arranged in the corresponding first through hole 211 and second through hole 221, and the first rod body 21 and the second rod body 22 are fixed relative to each other by the fixing pin 3. In this way, the hoisting part 2 can be prevented from moving during the hoisting of the object to be hoisted (not shown in the figure), so that the hoisting part 2 can stably hoist the object to be hoisted.

[0036] Figure 2 The specific structure of the second embodiment of the lifting device 100 of the present application is shown. The difference between this embodiment and the first embodiment is that a different hoisting part 2 is adopted. In the embodiment, the first rod body 21 and the second rod body 22 of the hoisting part 2 are both configured in a circular shape.

[0037] Meanwhile, an inner thread is arranged in the first rod body 21 along the axial direction thereof, and an outer thread is arranged in the second rod body 22 along the axial direction thereof, the inner thread and the outer thread are configured to allow mutual engagement together, so that the second rod body 22 can move along the axial direction of the first rod body 21 and be relatively fixed with the first rod body 21.

[0038] In this arrangement direction, as shown in Figure 2 when it is required to adjust the force arm length of the hoisting part 2 relative to the object to be hoisted, a circumferential force can be applied to the second rod body 22, so as to drive the second rod body 22 to rotate. In this process, the second rod body 22 will continuously move outward along the path formed by the first rod body 21. Thus, the length of the second rod body 22 in the first rod body 21 can be adjusted, so as to adjust the length of the hoisting part 2, and further adjust the force arm length of the hoisting part 2 relative to the object to be hoisted.

[0039] And, as shown in Figure 2 when the second rod body 22 is adjusted in place, the outer thread of the first rod body 21 and the inner thread of the second rod body 22 will also be engaged together, so that the first rod body 21 and the second rod body 22 can be relatively fixed together. Thus, the hoisting part 2 can be prevented from moving when hoisting the object to be hoisted (not shown in the figure), so that the hoisting part 2 can stably hoist the object to be hoisted.

[0040] Figure 3 The specific structure of a third embodiment of the lifting appliance 100 of the utility model is shown. The difference between this embodiment and the first embodiment is that a different connecting mechanism 1 is adopted. In this embodiment, as shown in Figure 3 the connecting mechanism 1 is arranged in a rod-shaped structure of a "cross" shape, and the hoisting parts 2 are respectively located at the free ends of the connecting mechanism 1 and are configured to allow expansion and contraction along the axial direction thereof.

[0041] In this way, as shown in Figure 3 the device 100 will have four hoisting parts 2 that can be adjusted, so that the lengths of the hoisting parts 2 in four directions can be adjusted, and further the force arm lengths of the hoisting parts 2 in four directions relative to the object to be hoisted can be adjusted. In this arrangement, the application range of the device 100 can be improved, and the device 100 can further realize balanced hoisting of the object to be hoisted (not shown in the figure).

[0042] Figure 4 The specific structure of a fourth embodiment of the lifting appliance 100 of the utility model is shown. The difference between this embodiment and the first embodiment is that a different connecting mechanism 1 is adopted. In this embodiment, as shown in Figure 4As shown, the connecting mechanism 1 comprises two oppositely arranged first connecting rods 11, and a second connecting rod 12 arranged between the two first connecting rods 11 for connecting the two first connecting rods 11 together, and the first connecting rod 11 and the second connecting rod 12 are respectively configured to be able to stretch along the axial direction thereof. Specifically, in the embodiment, the connecting mechanism 1 is arranged in the shape of "H". Meanwhile, a hoisting part 2 is further arranged at the free end of each first connecting rod 11, and the hoisting part 2 is respectively configured to allow stretching along the axial direction thereof.

[0043] In this way, the device 100 will have four hoisting parts 2 that can be adjusted, so as to adjust the length of the four hoisting parts 2, and further adjust the length of the force arm of the four hoisting parts 2 relative to the object to be hoisted. Meanwhile, in this arrangement, as Figure 4 As shown, the length of the force arm can be further adjusted by adjusting the relative distance between the two first connecting rods 11. Thus, the application range of the device 100 can be improved, and the device 100 can further realize balanced hoisting of the object to be hoisted (not shown in the figure).

[0044] In one embodiment, as Figure 4 As shown, the first connecting rod 11 comprises a first fixed rod 111, and a first movable rod 112 arranged in the first fixed rod 111 and configured to allow movement along the path formed by the first fixed rod 111, and the second connecting rod 12 comprises a second fixed rod 121, and a second movable rod 122 arranged in the second fixed rod 121 and configured to allow movement along the path formed by the second fixed rod 121. In this way, the length of the first connecting rod 11 and the second connecting rod 12 can be adjusted.

[0045] According to a preferred embodiment of the present application, as Figure 4 As shown, a plurality of first connecting holes 13 are arranged on the first fixed rod 111 and the second fixed rod 121 along the axial direction thereof, and a plurality of second connecting holes 14 are arranged on the first movable rod 112 and the second movable rod 122 along the axial direction thereof.

[0046] In the embodiment, as Figure 4 As shown, the first connecting hole 13 and the second connecting hole 14 are configured to correspond to each other, and a connecting pin 4 is arranged in the first connecting hole 13 and the second connecting hole 14 in a selected manner, so as to relatively fix the first fixed rod 111 and the first movable rod 112, and the second fixed rod 121 and the second movable rod 122 together.

[0047] In this arrangement, as Figure 4As shown, when it is necessary to adjust the axial length of the first connecting rod 11, a force can be applied to the first movable rod 112, so that the first movable rod 112 moves outward along the path formed by the first fixed rod 111. In this way, the length of the first movable rod 112 inside the first fixed rod 111 can be adjusted, so as to adjust the axial length of the first connecting rod 11. In this way, the length of the force arm of the device 100 relative to the object to be hoisted can be further adjusted.

[0048] Meanwhile, as shown in Figure 4 the first connecting hole 13 on the first movable rod 112 and the second connecting hole 14 on the first fixed rod 111 are caused to correspond to each other. At this time, a connecting pin 4 is arranged in the corresponding first connecting hole 13 and second connecting hole 14, and the first fixed rod 111 and the first movable rod 112 are fixed relative to each other by the connecting pin 4. In this way, the connecting mechanism 1 can be prevented from moving when hoisting the object to be hoisted (not shown in the figure), so that the connecting mechanism 1 can stably hoist the object to be hoisted.

[0049] However, as shown in Figure 4 when it is necessary to adjust the relative distance between the two first connecting rods 11, and further adjust the length of the force arm of the device 100 relative to the object to be hoisted, a force is applied to the second movable rod 122, so that the second movable rod 122 moves outward along the path formed by the second fixed rod 121. In this way, the length of the second movable rod 122 inside the second fixed rod 121 can be adjusted, so as to adjust the axial length of the second connecting rod 12, and further adjust the relative distance between the two first connecting rods 11. In this way, the length of the force arm of the device 100 relative to the object to be hoisted can be further adjusted.

[0050] Meanwhile, as shown in Figure 4 the first connecting hole 13 on the second movable rod 122 and the second connecting hole 14 on the second fixed rod 121 are caused to correspond to each other. At this time, a connecting pin 4 is arranged in the corresponding first connecting hole 13 and second connecting hole 14, and the second fixed rod 121 and the second movable rod 122 are fixed relative to each other by the connecting pin 4. In this way, the connecting mechanism 1 can be prevented from moving when hoisting the object to be hoisted (not shown in the figure), so that the connecting mechanism 1 can stably hoist the object to be hoisted.

[0051] In one embodiment, as shown in Figure 1 , 3As shown in Figure 4, a lifting rope (not shown) is selectively provided on the upper end face of the connecting mechanism 1 and fixed relative to the lifting equipment (not shown in the figure). The lifting rope is arranged to allow the lifting equipment to lift the connecting mechanism 1 in a balanced manner. Specifically, the lifting rope is located at the center of gravity of the connecting mechanism 1 so that the connecting mechanism 1 can remain balanced when the connecting mechanism 1 and the lifting part 2 are not adjusted.

[0052] In this embodiment, it should be noted that when the connecting mechanism 1 is configured in a straight line or a cross shape, the lifting rope is positioned at the center of gravity of the connecting mechanism 1. However, when the connecting mechanism 1 is configured in an H-shape, four lifting ropes are provided, each located at one end of the connecting mechanism 1. This allows the lifting ropes to keep the connecting mechanism 1 balanced.

[0053] In addition, such as Figure 1 , 3 As shown in Figure 4, a binding rope (not shown in the figure) is selectively provided on the lower end face of the connecting mechanism 1. The binding rope is respectively provided on the free end of the hoisting part 2 to be fixed together with the object to be hoisted.

[0054] The operation of the lifting device according to this utility model is as follows.

[0055] First, the device 100 is positioned at the middle of the upper surface of the object to be hoisted, and the connecting mechanism 1 is fixed together with the hoisting equipment (not shown in the figure).

[0056] Simultaneously, the axial length of the connecting mechanism 1 or the lifting part 2 is adjusted according to the different objects to be lifted, until the lever arm formed by the lifting part 2 enables the device 100 to lift the object in a balanced manner. At this time, the binding ropes (not shown in the figure) located on the lower end face of the lifting part 2 are fixed together with the object to be lifted. Thus, the arrangement of the device 100 is completed.

[0057] Then, the hoisting equipment (not shown in the figure) is started, and the hoisting equipment continuously applies a vertical force towards the connecting mechanism 1, thereby driving the connecting mechanism 1 to move vertically. During this process, the connecting mechanism 1 continuously transmits the force to the hoisting part 2, and then through the hoisting part 2 to the object to be hoisted (not shown in the figure). This causes the object to be hoisted to move continuously along the vertical direction, thus completing the hoisting work and ensuring that the object remains balanced during the hoisting process.

[0058] Finally, it is explained that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by equivalents without departing from the purpose and scope of the present application. The technical solutions of the present application should be covered in the scope of the claims of the present application.

Claims

1. A spreader, characterized in that, The connecting mechanism (1) is configured to allow relative fixation with the hoisting device outputting force, The hoisting part (2) is arranged at the end of the connecting mechanism (1) and extends radially outward, and is configured to allow relative fixation with the object to be hoisted.

2. The spreader of claim 1, characterized in that: The connecting mechanism (1) is arranged in a "one" shaped rod structure, and the hoisting part (2) is arranged at the two ends of the connecting mechanism (1) and is configured to allow extension along the axial direction.

3. The spreader of claim 2, characterized in that: The hoisting part (2) includes a first rod (21) arranged at the end of the connecting mechanism (1) and fixed relative to the connecting mechanism (1), and a second rod (22) arranged in the first rod (21) and configured to move along the path formed by the inner wall of the first rod (21).

4. The spreader of claim 3, characterized in that: A plurality of first through holes (211) are arranged on the first rod (21) along the axial direction, and a plurality of second through holes (221) are arranged on the second rod (22) along the axial direction, the first through holes (211) and the second through holes (221) are configured to correspond to each other, and a fixing pin (3) is arranged in the first through hole (211) and the second through hole (221) in a selected manner, the fixing pin (3) is used to fix the first rod (21) and the second rod (22) relative to each other.

5. The spreader of claim 3, wherein: The first rod (21) and the second rod (22) are both configured in a circular shape, an inner thread is arranged in the first rod (21) along the axial direction, and an outer thread is arranged in the second rod (22) along the axial direction, the inner thread and the outer thread are configured to engage with each other, so that the second rod (22) can move along the axial direction of the first rod (21) and be fixed relative to the first rod (21).

6. The spreader according to any one of claims 1-5, characterized in that: The connecting mechanism (1) is arranged in a "cross" shaped rod structure, and the hoisting part (2) is arranged at the free end of the connecting mechanism (1) and is configured to allow extension along the axial direction.

7. The spreader according to any one of claims 1-5, characterized in that: The connecting mechanism (1) includes two oppositely arranged first connecting rods (11) and a second connecting rod (12) arranged between the two first connecting rods (11) for connecting the two first connecting rods (11) together, the first connecting rod (11) and the second connecting rod (12) are respectively configured to be able to extend along the axial direction.

8. The spreader of claim 7, characterized in that: The first connecting rod (11) includes a first fixed rod (111) and a first movable rod (112) arranged in the first fixed rod (111) and configured to move along the path formed by the first fixed rod (111), and the second connecting rod (12) includes a second fixed rod (121) and a second movable rod (122) arranged in the second fixed rod (121) and configured to move along the path formed by the second fixed rod (121).

9. The spreader of claim 8, characterized in that: A plurality of first connecting holes (13) are arranged along the axial direction of the first fixed rod (111) and the second fixed rod (121) respectively, and a plurality of second connecting holes (14) are arranged along the axial direction of the first movable rod (112) and the second movable rod (122) respectively, the first connecting holes (13) and the second connecting holes (14) are configured to correspond to each other, and a connecting pin (4) is arranged in the first connecting holes (13) and the second connecting holes (14) in a selected manner, so as to relatively fix the first fixed rod (111) and the first movable rod (112), and the second fixed rod (121) and the second movable rod (122) together.

10. The spreader of claim 9, characterized in that: A hoisting rope is arranged in a selected manner on the upper end surface of the connecting mechanism (1) and is relatively fixed together with the hoisting equipment, the hoisting rope is arranged to allow the hoisting equipment to balance and hoist the connecting mechanism (1), and a binding rope is also arranged in a selected manner on the lower end surface of the connecting mechanism (1), and the binding rope is arranged at the free end of the hoisting part (2) respectively, so as to be relatively fixed together with the object to be hoisted.

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