Movable lifting device

Abstract

The invention relates to the field of lifting devices, in particular to a movable lifting device.The movable lifting device comprises a moving assembly, a supporting frame and a connecting assembly, one end of the moving assembly abuts against the ground and can move along the ground and rotate by 360 degrees plus or minus under the action of external force, and the other end of the moving assembly abuts against the supporting frame; the connecting assembly acts between the supporting frame and the moving assembly, and the two ends of the connecting assembly are rotationally connected with the supporting frame and the moving assembly correspondingly; a driving assembly is further arranged between the moving assembly and the supporting frame, the fixed end of the driving assembly is connected with the moving assembly, the output end of the driving assembly is connected with the supporting frame, and the output end of the driving assembly can enable the supporting frame to lift and bear an object in the direction away from the moving assembly. The motor can be lifted and steered in a narrow space, and the effect of convenient maintenance is achieved.

Description

Technical Field

[0001] This application relates to the field of lifting devices, and particularly to a movable lifting device. Background Art

[0002] In modern industrial equipment, motors, as core power components, are widely used in various mechanical systems. However, in certain specific application scenarios, motors are installed in narrow spaces, which poses great challenges to daily maintenance and repair. Especially in cases where maintenance can only be carried out after a steering operation, traditional maintenance methods are often ineffective. For example, in ships, aircraft, or some compact industrial equipment, the installation position of the motor may be in a narrow cabin or inside the equipment, making it difficult for maintenance personnel to directly access the motor. In some cases, the motor even needs to be turned or disassembled before maintenance operations can be carried out.

[0003] Existing solutions usually rely on manual operation or simple auxiliary tools, but these methods have the following problems: First, manual operation is inefficient and prone to equipment damage or personal injury due to improper operation. Second, simple auxiliary tools often cannot provide sufficient stability and accuracy, making it difficult to achieve precise steering and lifting of the motor in a narrow space.

[0004] Based on the above background art, the technical problem to be solved by the present invention is: how to lift and turn a motor in a narrow space so that maintenance personnel can smoothly carry out maintenance operations. Summary of the Invention

[0005] This application provides a movable lifting device to achieve the effect of lifting and turning a motor in a narrow space.

[0006] The above technical objectives of this application are achieved through the following technical solutions: A movable lifting device includes a moving component, a support frame, and a connecting component. One end of the moving component abuts against the ground and can move along the ground and rotate ±360° under the action of an external force. The connecting component acts between the support frame and the moving component, and both ends of the connecting component are rotatably connected to the support frame and the moving component respectively. A driving component is also provided between the moving component and the support frame. The fixed end of the driving component is connected to the moving component, and the output end of the driving component is connected to the support frame. The output end of the driving component can move the support frame away from the moving component to enable the support frame to lift and carry an object.

[0007] By adopting the above solution, the overall structure of the device is small and can be pushed into a limited space. When in use, the upper surface of the support frame is positioned at the object to be transported, such as the bottom of a motor, by moving the moving component. The support frame is then lifted up to fit tightly against the bottom wall of the object by starting the driving component. The moving component is then driven to move or turn, thereby achieving the effect of lifting and turning the motor in a narrow space and facilitating maintenance.

[0008] Furthermore, the side wall of the movable component is provided with a lifting structure, which includes a lifting plate, a reinforcement rod and a transition component. The lifting plate is placed in the middle of the width direction of one side of the movable component, and the upper surface of the lifting plate is connected to the fixed end of the driving component; the transition component is connected to both the lifting plate and the connecting component, and the transition component is used to rotate synchronously when the support frame is lifted and drives the connecting component to rotate so that the lifting plate is always in a horizontal state; the reinforcement rod is provided between the connecting component and the transition component, and the reinforcement rod is used to increase the stability of the connection between the transition component and the connecting component.

[0009] Furthermore, the transition assembly includes two transition plates, a limit rod and a balance rod. The limit rod is arranged parallel to the width direction of the movable assembly and is rotatably connected to the bottom wall of the lifting plate. The balance rod is arranged parallel to the limit rod and both ends are connected to the connecting assemblies on both sides. The two transition plates are arranged at both ends of the limit rod, and one end of each transition plate is connected to the limit rod, and the other end is connected to the balance rod.

[0010] By adopting the above solution, when the driving assembly is used to lift the support frame, the connecting assembly will rotate. The rotation of the connecting assembly can drive the reinforcement rod and the balance rod to move. The reinforcement rod and the balance rod will transmit the force to the transition plate. The end of the transition plate away from the limit rod will gradually rise, and the end close to the limit rod will rotate relative to the limit rod, so that the lifting plate can always be in a horizontal state.

[0011] Furthermore, the support frame has a side frame inclined on the side close to the driving assembly, the side frame is connected to the upper surface of the movable support frame, and a connecting part is provided on the side away from the support frame. The connecting part is parallel to the lifting plate and is used to connect to the output end of the driving assembly.

[0012] Furthermore, a blocking assembly is provided on the upper surface of the support frame, and the blocking assembly is provided on the opposite side of the side frame. The blocking assembly and the side frame work together to limit the object; the blocking assembly includes a positioning plate, a push bolt and a tightening plate, and the positioning plate is provided on the upper surface of the support frame, the push bolt is threadedly connected to the upper surface of the positioning plate and the direction of travel of the push bolt is the direction of approaching or away from the side frame, and the tightening plate is connected to the side of the push bolt close to the side frame; rotating the push bolt can drive the tightening plate to move along the surface of the support frame.

[0013] By adopting the above solution, after the support frame carries the object, the push bolt can be rotated and pushed to push the tightening plate toward the object, so that the tightening plate tightens the object to prevent the object from falling.

[0014] Furthermore, a limiting hole is provided on the upper surface of the support frame corresponding to the positioning plate, and a positioning rod is fixedly connected to the bottom wall of the positioning plate corresponding to the limiting hole. The limiting rod is plugged into the limiting hole to limit the relative position of the positioning plate and the upper surface of the supporting frame.

[0015] Furthermore, the side of the tightening plate close to the side frame is fixedly connected with an abutment block, which includes a flat end and an arcuate end, wherein the flat end is connected to the side of the tightening plate away from the push bolt, and the arcuate end is used to abut against an object.

[0016] Furthermore, it is characterized in that: a blocking assembly is provided on the upper surface of the support frame, the blocking assembly includes a chain and a blocking ring, the blocking ring is rotatably connected to the side wall of the support frame, one end of the chain is connected to the moving assembly, and the other end is connected to the blocking ring; an anti-slip portion is connected to the end of the blocking ring facing away from the chain, and when the support frame is lifted, the chain restricts one end of the blocking ring, causing the anti-slip portion to rotate toward the side closer to the object.

[0017] By adopting the above solution, when the support frame is being lifted, due to the limited length of the chain, the chain will restrict one end of the blocking ring, and the blocking ring will rotate around the support frame, causing the anti-slip portion to rotate until it abuts against the object, thereby achieving the effect of limiting the object.

[0018] Furthermore, the driving assembly also includes an input shaft and a linkage shaft. The input shaft is arranged along the width direction of the moving assembly and is connected to the moving assembly. One end of the linkage shaft is fixedly connected to the input shaft, and the other end is rotatably connected to the support frame. Rotating the input shaft can drive the support frame to rise or fall relative to the moving assembly through the linkage shaft.

[0019] Furthermore, a labor-saving sleeve is connected to the side wall of the input shaft, and the labor-saving sleeve is used to drive the input shaft to rotate; the side wall of the moving component is provided with a locking component used in conjunction with the labor-saving sleeve, and the locking component includes a plug-in cylinder and a limit pin. The plug-in cylinder is parallel to the input shaft and is connected to the side wall of the moving component close to the input shaft. The limit pin is slidably connected to the plug-in cylinder, and the labor-saving sleeve can be limited by moving the limit pin to the upper surface of the labor-saving sleeve.

[0020] By adopting the above solution, pushing the labor-saving sleeve downward can drive the input shaft to rotate, and the rotation of the input shaft can drive the linkage shaft to lift the support frame. At this time, pushing the limit pin to limit the upper surface of the labor-saving sleeve can lock the lifted state of the support frame.

[0021] In summary, this application has the following technical effects: 1. By setting up this device, the overall structure of the device is small and can be pushed into a limited space. When in use, the upper surface of the support frame is positioned at the object to be carried, such as the bottom of the motor, by moving the moving component. Then, by starting the driving component, the support frame is lifted until it is in close contact with the bottom wall of the object. Then, the moving component is driven to move or turn, thereby achieving the effect of lifting and turning the motor in a small space, and achieving the effect of facilitating maintenance. 2. By setting up the transition plate, when the driving assembly is used to lift the support frame, the connecting assembly will rotate, which can drive the reinforcement rod and the balance rod to move. The reinforcement rod and the balance rod will transmit force to the transition plate. The end of the transition plate away from the limit rod will gradually rise, and the end close to the limit rod will rotate relative to the limit rod, so that the lifting plate can always be in a horizontal state; 3. By setting up a blocking component, when the support frame is lifted, due to the limited length of the chain, the chain will restrict one end of the blocking ring, and the blocking ring will rotate around the support frame, causing the anti-slip part to rotate to abut against the object, thereby achieving the effect of limiting the object. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural schematic diagram of a movable lifting device of the present application; Figure 2 This is a structural diagram of the support frame of the present application in a fallen state; Figure 3 This is a structural diagram of the support frame of the present application in a raised state; Figure 4 It is a structural diagram at the bottom of this application; Figure 5 It is a structural diagram of the blocking component of this application.

[0023] In the figure, 1, moving assembly; 11, roller; 12, bearing plate; 121, connecting beam; 13, bottom frame; 131, extension plate; 2, support frame; 21, side frame; 211, connecting part; 22, limiting hole; 23, support plate; 3, driving assembly; 31, input shaft; 32, linkage shaft; 4, connecting assembly; 41, connecting plate; 5, blocking assembly; 51, positioning plate; 511, positioning rod; 512, collar; 52, propulsion screw Bolt; 53. Tightening plate; 531. Abutment block; 532. Anti-skid column; 54. Chain; 55. Blocking ring; 551. Anti-slip part; 6. Lifting structure; 61. Lifting plate; 62. Reinforcement rod; 63. Transition assembly; 631. Transition plate; 632. Limit rod; 633. Balance rod; 7. Rebound part; 8. Auxiliary rod; 9. Labor-saving sleeve; 10. Locking assembly; 101. Connecting tube; 102. Limit pin; 103. Operating lever. DETAILED DESCRIPTION

[0024] The present application is further described in detail below with reference to the accompanying drawings.

[0025] Example 1: Reference Figure 1 , this embodiment provides a movable lifting device, including a moving component 1, a support frame 2 and a driving component 3, wherein one end of the moving component 1 is placed on the working surface, the support frame 2 is arranged on the side of the moving component 1 away from the working surface, and the driving component 3 is arranged between the moving component 1 and the support frame 2. By operating the driving component 3, the support frame 2 can be driven to lift or lower relative to the moving component 1 to support the object, and the object can be driven to move along the working surface under the action of the moving component 1.

[0026] Reference Figure 1 The moving component 1 includes a bottom frame 13 and rollers 11. In this embodiment, the bottom frame 13 is U-shaped as a whole and two extension plates 131 are provided on one side of the bottom frame 13 with a cross beam. The two extension plates 131 are respectively arranged at positions close to the two ends of the beam that are away from each other and are fixedly connected to the directions of the two vertical legs of the cross beam away from the bottom frame 13; four rollers 11 are provided, two of which are fixedly connected to the bottom walls of the two extension plates 131, respectively, and the other two rollers 11 are respectively fixedly connected to the bottom walls of one end of the two legs of the bottom frame 13 away from the two extension plates 131.

[0027] Reference Figure 1 The support frame 2 is composed of two support plates 23, and the two support plates 23 are respectively arranged parallel to the two vertical legs of the bottom frame 13, and the driving assembly 3 acts between the support plates 23 and the bottom frame 13. Specifically, the driving assembly 3 includes an input shaft 31 and a linkage shaft 32. The input shaft 31 and the extension portion are arranged on the same side, and are parallel to the cross beam of the bottom frame 13 and are rotatably connected to the cross beam of the bottom frame 13. There are two linkage shafts 32, so that each support plate 23 corresponds to a linkage shaft 32, one end of each linkage shaft 32 is fixedly connected to the input shaft 31, and the other end is rotatably connected to the bottom wall of the support plate 23; through the above arrangement, in the process of rotating the input shaft 31, the input shaft 31 can drive the two support plates 23 to lift up in the direction away from the bottom frame 13 or fall back in the direction close to the bottom frame 13 through the two linkage shafts 32.

[0028] Reference Figure 1 An auxiliary rod 8 is provided on the side of each vertical support leg on the bottom frame 13 away from the input shaft 31. One end of each auxiliary rod 8 is rotatably connected to the bottom wall of the bottom frame 13, and the other end is rotatably connected to the bottom wall of the support plate 23. The auxiliary rod 8 is provided to assist the movement of the support plates 23 when the input shaft 31 drives the two support plates 23 to rise in the direction away from the bottom frame 13 or fall back in the direction close to the bottom frame 13 through the two linkage shafts 32.

[0029] Reference Figure 1 There is a labor-saving sleeve 9 in the middle of the input shaft 31, which is fixedly connected to the input shaft 31. The side of the labor-saving sleeve 9 facing away from the input shaft 31 is used to plug and cooperate with the rod-shaped object. In this way, moving the rod-shaped object can drive the input shaft 31 to rotate through the labor-saving sleeve 9, so the setting of the labor-saving sleeve 9 achieves the effect of facilitating the rotation of the input shaft 31.

[0030] Reference Figure 1 , a locking assembly 10 is provided on the side of the crossbeam of the bottom frame 13 close to the labor-saving sleeve 9, and the locking assembly 10 includes an inserting tube 101, a limit pin 102 and an operating rod 103. Specifically, the inserting tube 101 is parallel to the crossbeam and is fixedly connected to the crossbeam, the limit pin 102 is plugged into the inserting tube 101, and the operating rod 103 is fixedly connected to the end of the limit pin 102 away from the labor-saving sleeve 9; when the labor-saving sleeve 9 drives the input shaft 31 to rotate and drives the two support plates 23 to lift up to support the object through the linkage shaft 32, the operating rod 103 can be toggled to make the limit pin 102 move toward the end close to the labor-saving sleeve 9 and block the upper surface of the labor-saving sleeve 9, thereby limiting the movement of the labor-saving sleeve 9 and locking the supporting state of the support plate 23 on the object.

[0031] Reference Figure 1 When the support frame 2 is lifted relative to the supporting plate 12 under the action of the driving assembly 3, the chain 54 will pull the blocking ring 55 toward the side away from the release portion, causing the blocking ring 55 and the side wall of the leg to rotate relative to each other, so that the anti-slip portion 551 rotates toward one end close to the input shaft 31 and blocks and limits the object.

[0032] The implementation principle of a movable lifting device in an embodiment of the present application is as follows: when carrying an object, first insert a rod-shaped object, such as an iron rod, into the labor-saving sleeve 9, and then the operator holds the rod and pushes the device until the device is inserted into the bottom of the object to be lifted, and then presses the rod downward. At this time, the rod drives the input shaft 31 to rotate through the labor-saving sleeve 9. During the rotation, the input shaft 31 drives the support plate 23 to move through the linkage shaft 32, so that the support plate 23 is lifted, thereby supporting the object; then the operating rod 103 is toggled, so that the limit pin 102 moves along the plug-in cylinder 101 and covers the upper surface of the labor-saving sleeve 9. By limiting the position of the labor-saving sleeve 9, the support state of the object by the support plate 23 is limited; then the rod-shaped object is taken out of the labor-saving sleeve 9, and then the rod-shaped object can be held in hand, and then the bottom frame 13 is poked with the rod to drive the device to move as a whole.

[0033] It should be noted that, although the device provided in this embodiment can be used in a confined space, it is more suitable for daily transportation use. Therefore, the applicant further optimized a device that is more suitable for confined space operations based on this solution. Please refer to Example 2 for details.

[0034] Example 2: The difference between this embodiment and the first embodiment is that the driving component 3 and the blocking component 5 are optimized. The specific solution is as follows: Reference Figure 2 , including a moving component 1, a support frame 2, a driving component 3, a connecting component 4 and a blocking component 5. The moving component 1 is placed on the upper surface of the working surface and can move along the upper surface of the working surface and rotate positive and negative 360° under the action of external force. The support frame 2 is set on the upper surface of the moving component 1. The connecting component 4 and the driving component 3 both act between the moving component 1 and the support frame 2, and the two ends of the connecting component 4 are respectively rotatably connected to the moving component 1 and the support frame 2. The driving component 3 is used to drive the support frame 2 to move toward or away from the upper surface of the moving component 1. The blocking component 5 is set on the upper surface of the support frame 2. When the driving component 3 drives the support frame 2 to lift up away from the upper surface of the moving component 1 and support the object, the blocking component 5 is used to block the object and increase the stability of the object on the surface of the support frame 2.

[0035] Reference Figures 2 - 3 In this embodiment, the moving component 1 includes a roller 11 and a supporting plate 12. In this embodiment, four supporting plates 12 are provided, and the positions of the four supporting plates 12 are arranged at the four corners of a rectangle, and a connecting beam 121 is provided between each group of two supporting plates 12 arranged along the length direction, and the two ends of the connecting beam 121 are fixedly connected to the two supporting plates 12 respectively.

[0036] Reference Figures 2 - 3, a lifting structure 6 is arranged between a set of two load-bearing plates 12 arranged in the width direction. The lifting structure 6 connects two laterally adjacent load-bearing plates 12 through a connecting component 4 and lifts the driving component 3. In this embodiment, the connecting component 4 includes four connecting plates 41, so that one connecting plate 41 is arranged on each side of each load-bearing plate 12. Each connecting plate 41 is a rectangular sheet. Both ends of each connecting plate 41 are respectively rotatably connected to the side wall of the load-bearing plate 12 and the support frame. When the driving component 3 lifts the support frame 2 upward, the connecting plate 41 rotates under the drive of the support frame 2.

[0037] Referring to Figures 2 - 4 [[ID=*5]]*, the lifting structure 6 includes a lifting plate 61, two reinforcing rods 62 and a transition component 63. The transition component 63 includes two transition plates 631, a limiting rod 632 and a balance rod 633. The lifting plate 61 is arranged between the two connecting plates 41, and the upper surface of the lifting plate 61 is higher than the upper surface of the load-bearing plate 12. The limiting rod 632 is rotatably connected to the bottom wall of the lifting plate 61 and is arranged parallel to the cross beam. The balance rod 633 is arranged parallel to the limiting rod 632 and both ends are fixedly connected to the two connecting plates 41. When the support frame 2 is in the falling state, the height of the balance rod 633 is lower than that of the limiting rod 632. The two transition plates 631 are respectively connected to both ends of the limiting rod 632, and both ends of the two limiting rods 632 are respectively fixedly connected to the limiting rod 632 and the balance rod 633. Specifically, through holes are formed in the side walls of each transition plate 631 away from the limiting rod 632 and the transition plates 631 pass through the balance rod 633 through the through holes; the two reinforcing rods 62 are arranged on the sides of the two transition plates 631 facing away from each other, and one end of each reinforcing rod 62 is fixedly connected to the transition plate 631 and the other end is fixedly connected to the connecting plate 41.

[0038] Referring to Figures 2 - 4 *, through the above lifting structure 6, when the driving component 3 drives the support frame 2 to lift in the direction away from the load-bearing plate 12, the connecting plate 41 rotates synchronously. During the rotation of the connecting plate 41, the reinforcing rod 62 and the balance rod 633 are driven to rotate and lift synchronously. At this time, one end of the transition plate 631 close to the balance rod 633 is gradually lifted, and the other end drives the relative rotation between the limiting rod 632 and the lifting plate 61, so as to ensure that the driving component 3 is always in a vertical state until the support frame 2 is lifted to a suitable height.

[0039] Referring to Figure 3, resilient members 7 are provided between the two load-bearing plates 12 facing away from the crossbeam and the bottom wall of the support frame 2. One end of the resilient member 7 is fixedly connected to the bottom wall of the support frame 2, and the other end is fixedly connected to the side wall of the load-bearing plate 12 close to the crossbeam. Because the resilient member 7 is provided, when the driving assembly 3 drives the support frame 2 to lift, the resilient member 7 will be stretched under force. When the output end of the driving assembly 3 retracts to drive the support frame 2 to descend, the resilient member 7 will contract in its own state, thereby assisting the output end of the driving assembly 3 to drive the support frame to fall back.

[0040] Referring to Figure 3 , in this embodiment, the support frame 2 is integrally in a U-shaped frame. A side frame 21 is provided on the side of the support frame 2 where the crossbeam is provided, that is, the side close to the driving assembly 3. In this embodiment, the side frame 21 is in a triangular frame structure composed of several rods, and the side frame 21 is inclined. One end of the side frame 21 is fixedly connected to the upper surface of the support frame 2. A connecting portion 211 is fixedly connected to the side of the side frame 21 facing away from the support frame 2. The connecting portion 211 and the lifting plate 61 are placed relatively parallel. The driving assembly 3 is arranged between the connecting portion 211 and the lifting plate 61. The fixed end of the driving assembly 3 is fixedly connected to the lifting plate 61, and the output end is fixedly connected to the connecting portion 211; in this embodiment, the driving assembly 3 is preferably a hydraulic device, for example: a jack, etc.

[0041] Referring to Figure 2 and Figure 5 , in this embodiment, two blocking assemblies 5 are provided. One such blocking assembly 5 is provided at each end of the two vertical legs of the support frame 2 facing away from the crossbeam. Each blocking assembly 5 includes a positioning plate 51, a pushing bolt 52, and a pressing plate 53. A limiting hole 22 is provided on the upper surface of the support frame 2 corresponding to the positioning plate 51. A positioning rod 511 is fixedly connected to the bottom wall of the positioning plate 51 corresponding to the limiting hole 22. The positioning rod 511 is inserted into the limiting hole 22 to limit the relative position between the positioning plate 51 and the upper surface of the load-bearing frame. The pushing bolt 52 is arranged on the upper surface of the positioning plate 51. The pushing bolt 52 is threadedly connected to the upper surface of the positioning plate 51. Specifically, a sleeve 512 is fixedly connected to the upper surface of the positioning plate 51. The inner circle of the sleeve 512 is provided with threads, and the pushing bolt 52 is threadedly connected to the inner circle of the sleeve. By rotating the pushing bolt 52, the pressing plate 53 can be pushed to move towards the direction close to the cross brace.

[0042] Referring to Figure 5 , a contact block 531 is fixedly connected to the side of each pressing plate 53 close to the inclined support. The bottom wall of the contact block 531 abuts against the upper surface of the support frame, and the contact block 531 includes a flat end and an arc end. The flat end is fixedly connected to the side of the pressing plate 53 facing away from the pushing bolt 52, and the arc end is used for abutting against an object.

[0043] Referring to Figure 5, two anti-slip columns 532 are provided on the bottom wall of each tightening plate 53. The two anti-slip columns 532 are respectively arranged on both sides of the vertical legs of the bottom frame 13. The anti-slip columns 532 are provided to prevent the tightening plate 53 from falling off the support frame when the tightening bolt pushes the tightening plate 53 to slide along the surface of the support frame.

[0044] Refer to Figure 2 , it should be noted that the roller 11 in this embodiment is preferably a steel ball, and the preferred use environments are steel plates, iron plates, and cement bottom plates, etc. According to the applicant's tests, the roller 11 can rotate 360° positive and negative in a narrow cabin or inside the equipment, and is equivalent to the roller 11 in Embodiment 1 (the shape can be referred to in the appendix Figure 1 ), and the effect has been significantly improved.

[0045] The implementation principle of a movable lifting device according to an embodiment of the present application is as follows: Push the whole device to move below the object to be carried, and then start the driving component 3. The output end of the driving component 3 jacks up the side frame 21, and the side frame 21 drives the support frame 2 to move upward. During the process of gradually raising the support frame 2, the connecting plate 41 rotates and drives the balance rod 633 and the reinforcing plate to rotate synchronously. Then, the transition plates 631 on both sides of the lifting plate 61 rotate around the balance rod 633 and the bottom wall of the lifting plate 61, so that the driving device is continuously in a vertical state until the upper surface of the support frame 2 completely abuts against the bottom of the object; then insert the positioning rod 511 into the limiting hole 22 so that the bottom wall of the positioning plate 51 abuts against the upper surface of the support frame 2, and then rotate the pushing bolt 52 until the pushing bolt 52 pushes the pushing plate to abut against the side wall of the object to achieve the limiting of the object; then the device can be pushed to move along the working surface.

[0046] This specific embodiment is only an interpretation of the present application, and it does not limit the present application. Those skilled in the art can make modifications to this embodiment without creative contributions according to needs after reading this specification, but as long as it is within the scope of the claims of the present application, it is protected by the patent law.

Claims

1. A movable lifting device, characterized in that: The invention comprises a moving assembly (1), a support frame (2) and a connecting assembly (4); one end of the moving assembly (1) is in contact with the ground and can move along the ground and rotate 360 degrees under the action of an external force; the connecting assembly (4) acts between the support frame (2) and the moving assembly (1); and the two ends of the connecting assembly (4) are respectively connected to the support frame (2) and the moving assembly (1) for rotation; A driving assembly (3) is further provided between the moving assembly (1) and the support frame (2); a fixed end of the driving assembly (3) is connected to the moving assembly (1); an output end of the driving assembly (3) is connected to the support frame (2); and the output end of the driving assembly (3) can move the support frame (2) in a direction away from the moving assembly (1) so that the support frame (2) can lift and carry an object.

2. The movable lifting device according to claim 1, wherein: The side wall of the movable assembly (1) is provided with a lifting structure (6), which includes a lifting plate (61), a reinforcement rod (62) and a transition assembly (63). The lifting plate (61) is placed in the middle of the width direction of one side of the movable assembly (1), and the upper surface of the lifting plate (61) is connected to the fixed end of the driving assembly (3); the transition assembly (63) is connected to both the lifting plate (61) and the connecting assembly (4), and the transition assembly (63) is used to rotate synchronously when the support frame (2) is lifted to drive the connecting assembly (4) to rotate, so that the lifting plate (61) is always in a horizontal state; the reinforcement rod (62) is provided between the connecting assembly (4) and the transition assembly (63), and the reinforcement rod (62) is used to increase the stability of the connection between the transition assembly (63) and the connecting assembly (4).

3. The movable lifting device according to claim 2, characterized in that: The transition assembly (63) includes two transition plates (631), a limiting rod (632) and a balancing rod (633). The limiting rod (632) is arranged parallel to the width direction of the moving assembly (1) and is rotatably connected to the bottom wall of the lifting plate (61). The balancing rod (633) is arranged parallel to the limiting rod (632) and both ends are connected to the connecting assemblies (4) on both sides. The two transition plates (631) are arranged at both ends of the limiting rod (632), and one end of each transition plate (631) is connected to the limiting rod (632) and the other end is connected to the balancing rod (633).

4. A movable lifting device according to claim 2, characterized in that: A side frame (21) is tilted on a side of the support frame (2) close to the drive assembly (3); the side frame (21) is connected to the upper surface of the movable support frame (2); a connecting portion (211) is provided on a side facing away from the support frame (2); the connecting portion (211) is parallel to the lifting plate (61), and the connecting portion (211) is used to connect to the output end of the drive assembly (3).

5. The movable lifting device according to claim 1, characterized in that: A blocking component (5) is provided on the upper surface of the support frame (2), and the blocking component (5) is provided on the opposite side of the side frame (21). The blocking component (5) and the side frame (21) work together to limit the object. The blocking assembly (5) comprises a positioning plate (51), a pushing bolt (52) and a tightening plate (53); the positioning plate (51) is arranged on the upper surface of the support frame (2); the pushing bolt (52) is threadedly connected to the upper surface of the positioning plate (51) and the moving direction of the pushing bolt (52) is the direction of approaching or moving away from the side frame (21); the tightening plate (53) is connected to the side of the pushing bolt (52) close to the side frame (21); rotating the pushing bolt (52) can drive the tightening plate (53) to move along the surface of the support frame (2).

6. The movable lifting device according to claim 5, wherein: A limiting hole (22) is provided on the upper surface of the support frame (2) corresponding to the positioning plate (51); a positioning rod (511) is fixedly connected to the bottom wall of the positioning plate (51) corresponding to the limiting hole (22); the limiting rod (511) is plugged into and matched with the limiting hole (22) so that the relative position of the positioning plate (51) and the upper surface of the supporting frame is limited.

7. The movable lifting device according to claim 5, wherein: A contact block (531) is fixedly connected to one side of the tightening plate (53) close to the side frame (21), and the contact block (531) includes a flat end and an arcuate end, wherein the flat end is connected to the side of the tightening plate (53) away from the push bolt (52), and the arcuate end is used to contact with an object.

8. A movable lifting device according to claim 1, characterized in that: A blocking assembly (5) is provided on the upper surface of the support frame (2), the blocking assembly (5) comprising a chain (54) and a blocking ring (55), the blocking ring (55) being rotatably connected to the side wall of the support frame (2), one end of the chain (54) being connected to the moving assembly (1), and the other end being connected to the blocking ring (55); an anti-slip portion (551) is connected to an end of the blocking ring (55) facing away from the chain (54), and when the support frame (2) is lifted, the chain (54) restricts one end of the blocking ring (55), causing the anti-slip portion (551) to rotate toward a side close to the object.

9. A movable lifting device according to claim 1, characterized in that: The driving assembly (3) further comprises an input shaft (31) and a linkage shaft (32); the input shaft (31) is arranged along the width direction of the moving assembly (1) and is connected to the moving assembly (1); one end of the linkage shaft (32) is fixedly connected to the input shaft (31), and the other end is rotatably connected to the support frame (2); by turning the input shaft (31) to rotate, the support frame (2) can be driven to be lifted or lowered relative to the moving assembly (1) via the linkage shaft (32).

10. A movable lifting device according to claim 9, characterized in that: The side wall of the input shaft (31) is connected to a labor-saving sleeve (9), and the labor-saving sleeve (9) is used to turn the input shaft (31) to rotate; the side wall of the moving component (1) is provided with a locking component (10) used in conjunction with the labor-saving sleeve (9), and the locking component (10) comprises a plug-in cylinder (101) and a limit pin (102), the plug-in cylinder (101) is parallel to the input shaft (31) and is connected to the side wall of the moving component (1) close to the input shaft (31), the limit pin (102) is slidably connected to the plug-in cylinder (101), and the labor-saving sleeve (9) can be limited by turning the limit pin (102) to the upper surface of the labor-saving sleeve (9).

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