Portable cargo loading and unloading device

Abstract

The invention belongs to the technical field of hoisting, and discloses a portable cargo loading and unloading device which comprises two bases, two moving assemblies and two supporting assemblies, the two supporting assemblies are fixedly installed at the tops of the two bases, a hoisting assembly is fixedly installed at the tops of the two supporting assemblies, and a lifting assembly is movably installed at the bottom of the hoisting assembly. Resonance assemblies are installed in the two supporting assemblies. Through the resonance assembly, when a ball shakes left and right, the ball can be movably hoisted by an upper bent rod, a universal ball and a movable ring, arbitrary movement of the ball on a transverse plane where the ball is located is completed, a spring at the bottom can play a role in pulling and resetting when the ball moves, and power potential energy generated when equipment moves can be weakened through the resonance assembly; the problems that a crane and a support swing back and forth under the inertia effect due to the fact that a heavy object is hung and taken, the hard connecting part of the device is affected, and a metal structure is damaged after long-time use are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of lifting, and in particular relates to a portable cargo loading and unloading device. Background Art

[0002] In industrial production or daily handling, cranes with lifting functions are used. There are many types of cranes. Large loading and unloading equipment such as cranes and forklifts are usually large in size, complex to operate, and require professional operators. For temporary loading and unloading tasks of some small and medium-sized goods, a portable loading and unloading device is more suitable for the use scenario; Existing portable cargo loading and unloading devices generally consist of three main parts: a mobile device, a bracket and a crane. The mobile device moves the equipment to the area where lifting and loading and unloading are required. Through the operation of the crane, the heavy objects are suspended from the ground and then transported away by the mobile device. However, when such traditional loading and unloading devices move heavy objects, the crane and the bracket will swing back and forth under the action of inertia due to the hanging of the heavy objects, thereby affecting the hard connection part of the device. After long-term use, it will cause metal fatigue, thereby causing structural damage and creating safety hazards. Summary of the invention

[0003] The object of the present invention is to provide a portable cargo handling device to solve the problems raised in the above background technology.

[0004] In order to achieve the above-mentioned object, the present invention provides the following technical solution: a portable cargo loading and unloading device, comprising two bases, the bottoms of the two bases are fixedly mounted with two moving components, and further comprising: A linkage lifting and supporting structure, comprising two supporting assemblies, both of which are fixedly mounted on the top of the two bases, a lifting assembly is fixedly mounted on the top of the two supporting assemblies, and a supporting assembly is movably mounted on the bottom of the lifting assembly; Two resonant components, both of which are fixedly installed inside the two supporting components, the resonant components include a circular block, the four diagonal positions of the circular block are movably hinged with movable rings, the tops of the four movable rings are fixedly connected with universal balls, the bottoms of the four universal balls are fixedly connected with bent rods, the bottom ends of the four bent rods are movably hinged with balls, the bottom ends of the balls are arrayed with four springs, and the tail ends of the four springs are elastically connected with rings.

[0005] Preferably, the base comprises a fixing block, a long groove is formed on the inner side of the fixing block, a round hole is formed on the long groove, and a latch is inserted into the round hole.

[0006] Preferably, the movable component includes a bearing, the inner ring of the bearing is fixedly connected to the bottom of the fixed block, the outer ring of the bearing is fixedly connected to two connecting rods, the middle positions of the two connecting rods are rotatably installed with rollers, and the outer edges of the two rollers are movably sleeved with tracks.

[0007] Preferably, the supporting assembly includes a conical shell, the bottom of which is fixedly connected to the top of the fixed block, two sets of cross bars are fixedly installed in the upper middle part of the conical shell, the bottom inner wall of the conical shell is fixedly connected to a Y-shaped block, the left end of the Y-shaped block is fixedly connected to an inclined rod, and the bottom inner wall of the conical shell is fixedly connected to a circular ring.

[0008] Preferably, the lifting assembly includes two longitudinal rods, both of which are installed through the top of the conical shell and fixedly connected to the inner wall of the circular block, the tops of the two longitudinal rods are fixedly connected to an I-beam, the outer edges of the I-beams are movably clamped with two groups of pulleys, the rotating shafts of the two groups of pulleys are fixedly connected to U-shaped rods, the bottom ends of the two groups of U-shaped rods are fixedly connected to trapezoidal blocks, a winch is fixedly installed in the middle position of the trapezoidal block, the outer edge of the winch is wrapped with a steel cable, and the bottom end of the steel cable is fixedly connected to a hook.

[0009] Preferably, the lifting assembly includes a return groove, which is movably clamped in the long groove, four universal wheels are fixedly installed on the bottom of the return groove, two X-shaped plates are movably clamped on the inner wall of the return groove, and two clamping wheels are rotatably installed on the outer sides of the two X-shaped plates, and two groups of clamping wheels are movably clamped in the return groove, a circular shaft is movably hinged at the middle position of the two X-shaped plates, a hydraulic rod is movably hinged at the middle position of the circular shaft, and the right end of the hydraulic rod is fixedly connected to the inner side of the return groove, and bent columns are movably hinged on the left and right inner walls of the two X-shaped plates, and support plates are fixedly installed on the tops of the two groups of bent columns.

[0010] Preferably, a hole for the passage of a bolt is provided at a diagonal portion of the return groove, the return groove is fixedly installed in the long groove by the bolt, and the telescopic end of the hydraulic rod is movably hinged to the round shaft.

[0011] The beneficial effects of the present invention are as follows: 1. The present invention is equipped with a newly designed resonance component. When the ball swings left and right, it will be lifted by the upper bent rod, universal ball and movable ring to complete any movement of the ball on the horizontal plane. The spring at the bottom will pull and reset the ball when it is displaced. The dynamic potential energy generated by the equipment during movement can be weakened or even eliminated by the resonance component, which solves the problem that the crane and the bracket will swing back and forth under the action of inertia when hanging heavy objects, affecting the hard connection part of the device, and causing damage to the metal structure after long-term use.

[0012] 2. The present invention increases the stroke by installing a detachable lifting component and a hydraulic rod, and the circular shaft hinged therewith moves in the longitudinal direction, while the angle between the two X-shaped plates becomes smaller, the snap-in wheel slides in the return groove, the lateral distance gradually becomes shorter, and the longitudinal distance gradually increases. At this time, the support plate will also be continuously lifted, and after reaching the bottom of the heavy object to provide lifting effect, the operation of the hydraulic rod is stopped, thereby completing the lifting effect on the heavy object.

[0013] 3. The present invention is equipped with a newly designed moving component. The four tracks will rotate along the outer edges of the multiple rollers. When the equipment needs to turn, the bearing installed at the bottom of the fixed block will drive the tracks to rotate, and cooperate with the left and right differential principle to move the lifting equipment in multiple directions. Compared with the traditional universal wheel design, the force bearing area between the tracks and the ground is larger, and the load-bearing effect is also better. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the structure enlargement in the middle; Figure 3 For the present invention Figure 1 A magnified schematic diagram of the structure at B in the middle; Figure 4 It is a side view of the overall structure of the present invention; Figure 5 A top view of the hoisting assembly structure of the present invention; Figure 6 For the present invention Figure 5 A magnified schematic diagram of the structure at C in the middle; Figure 7 This is a schematic diagram of the support assembly structure of the present invention; Figure 8 It is a schematic diagram of the structure of the resonance component of the present invention; Fig. 9 It is a schematic diagram of the structure of the lifting assembly of the present invention.

[0015] In the figure: 1, base; 2, moving assembly; 3, supporting assembly; 4, resonant assembly; 5, lifting assembly; 6, lifting assembly; 11, fixing block; 12, long slot; 13, round hole; 14, latch; 21, bearing; 22, connecting rod; 23, roller; 24, crawler; 31, conical shell; 32, cross bar; 33, Y-shaped block; 34, inclined rod; 41, return block; 42, movable ring; 4 3. Universal ball; 44. Bend rod; 45. Round ball; 46. Spring; 47. Ring; 51. Longitudinal rod; 52. I-beam; 53. Pulley; 54. U-shaped rod; 55. Trapezoidal block; 56. Winch; 57. Steel cable; 58. Hook; 61. Return groove; 62. Universal wheel; 63. X-shaped plate; 64. Snap-on wheel; 65. Round shaft; 66. Hydraulic rod; 67. Bend column; 68. Support plate. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] like Figures 1 to 9 As shown, an embodiment of the present invention provides a portable cargo loading and unloading device, comprising two bases 1, two moving components 2 are fixedly installed at the bottom of the two bases 1, and further comprising: The linkage lifting and supporting structure comprises two supporting assemblies 3, both supporting assemblies 3 are fixedly mounted on the top of two bases 1, a lifting assembly 5 is fixedly mounted on the top of the two supporting assemblies 3, and a supporting assembly 6 is movably mounted on the bottom of the lifting assembly 5; Two resonance components 4, both of which are fixedly installed inside the two support components 3, the resonance component 4 includes a return block 41, and the four diagonal positions of the return block 41 are movably hinged with movable rings 42, the tops of the four movable rings 42 are fixedly connected with universal balls 43, the bottoms of the four universal balls 43 are fixedly connected with bent rods 44, the bottom ends of the four bent rods 44 are movably hinged with round balls 45, the bottom ends of the round balls 45 are arrayed with four springs 46, and the tail ends of the four springs 46 are elastically connected with round rings 47; When the ball 45 is subjected to dynamic potential energy, it will be connected by the upper curved rod 44, the universal ball 43, and the movable ring 42 to complete any movement on the horizontal plane, and the spring 46 at the bottom will play the function of pulling and resetting when the ball 45 is displaced. The dynamic potential energy generated by the equipment during movement can be weakened or even eliminated by the resonance component 4, which solves the problem that the crane and the bracket will swing back and forth due to the inertia of hanging heavy objects, affecting the hard connection part of the device, and causing damage to the metal structure after long-term use; The base 1 includes a fixing block 11, a long slot 12 is formed on the inner side of the fixing block 11, a round hole 13 is formed on the long slot 12, and a latch 14 is inserted into the round hole 13; The lifting assembly 6 is moved to the empty slot position between the two bases 1 by the universal wheel 62, the return slot 61 is pushed in along the two long slots 12, and two latches 14 are inserted into the diagonal area of ​​the return slot 61, so as to complete the fixation between the base 1 and the lifting assembly 6; The moving assembly 2 includes a bearing 21, the inner ring of the bearing 21 is fixedly connected to the bottom of the fixed block 11, the outer ring of the bearing 21 is fixedly connected to two connecting rods 22, the middle positions of the two connecting rods 22 are rotatably mounted with rollers 23, and the outer edges of the two rollers 23 are movably sleeved with tracks 24; The four crawlers 24 will rotate along the outer edges of the multiple rollers 23. When the equipment needs to turn, the bearing 21 installed at the bottom of the fixed block 11 will drive the crawlers 24 to rotate, and cooperate with the left and right differential principle to move the hoisting equipment in multiple directions; The support assembly 3 includes a conical shell 31, the bottom of the conical shell 31 is fixedly connected to the top of the fixed block 11, two sets of cross bars 32 are fixedly installed at the upper middle position of the conical shell 31, a Y-shaped block 33 is fixedly connected to the bottom inner wall of the conical shell 31, an inclined rod 34 is fixedly connected to the left end of the Y-shaped block 33, and the bottom inner wall of the conical shell 31 is fixedly connected to the ring 47; The design of the conical shell 31 and its fixed connection with the top of the fixed block 11 provide a stable base for the entire support assembly. This structure can effectively disperse and withstand the pressure from above, ensuring the stability and reliability of the device; The hoisting assembly 5 includes two longitudinal rods 51, both of which are installed through the top of the conical shell 31 and fixedly connected to the inner wall of the return block 41. The tops of the two longitudinal rods 51 are fixedly connected with I-beams 52, and the outer edges of the I-beams 52 are movably connected with two groups of pulleys 53. The rotating shafts of the two groups of pulleys 53 are fixedly connected with U-shaped rods 54. The bottom ends of the two groups of U-shaped rods 54 are fixedly connected with trapezoidal blocks 55. A winch 56 is fixedly installed in the middle of the trapezoidal block 55. The outer edge of the winch 56 is wound with a steel cable 57, and the bottom end of the steel cable 57 is fixedly connected with a hook 58. The pulley 53 moves on the I-beam 52, driving the trapezoidal block 55 to move to the middle of the I-beam 52, and the winch 56 rotates clockwise to unwind the wound steel cable 57, lower the hook 58, and after the hook 58 is hung on the weight, the winch 56 is rotated counterclockwise to rewind the steel cable 57, and the hook 58 drives the weight to be lifted off the ground; The lifting assembly 6 includes a return groove 61, which is movably connected to the long groove 12. Four universal wheels 62 are fixedly installed at the bottom of the return groove 61. Two X-shaped pieces 63 are movably connected to the inner wall of the return groove 61. Two cardan wheels 64 are rotatably installed on the outer sides of the two X-shaped pieces 63. The two sets of cardan wheels 64 are movably connected to the return groove 61. A round shaft 65 is movably hinged at the middle position of the two X-shaped pieces 63. The middle of the round shaft 65 A hydraulic rod 66 is movably hinged at the upper part of the upper part, and the right end of the hydraulic rod 66 is fixedly connected to the inner side of the return groove 61. The inner walls of the left and right sides of the two X-shaped pieces 63 are movably hinged with bent columns 67, and the tops of the two groups of bent columns 67 are fixedly installed with support plates 68; a hole for the bolt 14 to pass through is opened at the diagonal of the return groove 61, and the return groove 61 is fixedly installed in the long groove 12 through the bolt 14, and the telescopic end of the hydraulic rod 66 is movably hinged to the round shaft 65; Start the hydraulic rod 66 to increase its stroke, and the circular shaft 65 hinged thereto will move in the longitudinal direction, while the angle between the two X-shaped plates 63 will become smaller, and the snap-on wheel 64 will slide in the return groove 61, and the lateral distance will gradually become shorter, while the longitudinal distance will gradually increase. At this time, the support plate 68 will also be continuously lifted, and after reaching the bottom of the heavy object to provide a lifting effect, the operation of the hydraulic rod 66 will be stopped, and the lifting effect on the heavy object can be completed.

[0018] Working principle: When using the present invention, firstly, the equipment is moved to the area where the lifting is required by the moving assembly 2. Before the operation, the lifting assembly 6 is removed to leave an empty space between the two bases 1. When moving, the four crawlers 24 will rotate along the outer edges where the multiple rollers 23 are located. When the equipment needs to turn, the bearing 21 installed at the bottom of the fixed block 11 will drive the crawler 24 to rotate, and cooperate with the left and right differential principle to move the lifting equipment in multiple directions. When reaching the designated area, the pulley 53 moves on the I-beam 52, driving the trapezoidal block 55 to move to the middle of the I-beam 52, and the winch 56 rotates clockwise to unwind the wound steel cable 57, lower the hook 58, and after the hook 58 is hung on the weight, the winch 56 is rotated counterclockwise to rewind the steel cable 57, and the hook 58 drives the weight to be lifted off the ground; After the hoisting is completed, the lifting assembly 6 is moved to the empty slot position between the two bases 1 through the universal wheel 62, the return slot 61 is pushed in along the two long slots 12, and two latches 14 are inserted into the diagonal area of ​​the return slot 61 to complete the fixation. At this time, the hydraulic rod 66 is started again to increase its stroke, and the circular shaft 65 hinged thereto will move in the longitudinal direction, and the angle between the two X-shaped pieces 63 will become smaller, and the clamping wheel 64 will slide in the return slot 61, the lateral distance will gradually shorten, and the longitudinal distance will gradually increase. At this time, the support plate 68 will also be continuously lifted, and the operation of the hydraulic rod 66 will be stopped after reaching the bottom of the heavy object to provide a lifting effect; At this time, the heavy object is lifted by the lifting component 6 below and lifted by the lifting component 5 above. When the object is moved by the moving component 2, the deflection caused by inertia will be transmitted to the quadrilateral structure composed of the two fixed blocks 11, the return groove 61, the longitudinal rod 51, and the I-beam 52. When the movement speed of the equipment is uneven and a large dynamic potential energy is generated, the resonance component 4 can provide a vibration elimination function. When the ball 45 is forced to swing back and forth, it will be lifted by the upper bent rod 44, the universal ball 43, and the movable ring 42, thereby completing any movement of the ball on the horizontal plane. The spring 46 at the bottom will pull and reset the ball 45 when it is displaced. In this way, the dynamic potential energy generated by the equipment during movement can be weakened or even eliminated through the resonance component 4, and the workflow ends here.

[0019] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0020] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable cargo handling device, comprising two bases (1), characterized in that: The bottoms of the two bases (1) are fixedly mounted with two moving components (2), and further comprising: A linkage lifting and supporting structure, comprising two support assemblies (3), the two support assemblies (3) being fixedly mounted on the tops of the two bases (1), a lifting assembly (5) being fixedly mounted on the tops of the two support assemblies (3), and a supporting assembly (6) being movably mounted on the bottoms of the lifting assemblies (5); Two resonant components (4), the two resonant components (4) are fixedly mounted inside the two support components (3), the resonant components (4) include a return block (41), the four diagonal positions of the return block (41) are movably hinged with movable rings (42), the tops of the four movable rings (42) are fixedly connected with universal balls (43), the bottoms of the four universal balls (43) are fixedly connected with bent rods (44), the bottom ends of the four bent rods (44) are movably hinged with round balls (45), the bottom ends of the round balls (45) are arrayed with four springs (46), and the tail ends of the four springs (46) are elastically connected with round rings (47).

2. A portable cargo handling device according to claim 1, characterized in that: The base (1) comprises a fixing block (11), a long slot (12) is provided on the inner side of the fixing block (11), a round hole (13) is provided on the long slot (12), and a latch (14) is inserted into the round hole (13).

3. A portable cargo handling device according to claim 2, characterized in that: The moving assembly (2) comprises a bearing (21), the inner ring of the bearing (21) being fixedly connected to the bottom of the fixed block (11), the outer ring of the bearing (21) being fixedly connected to two connecting rods (22), the middle parts of the two connecting rods (22) being rotatably mounted with rollers (23), and the outer edges of the two rollers (23) being movably sleeved with tracks (24).

4. A portable cargo handling device according to claim 2, characterized in that: The support assembly (3) comprises a conical shell (31), the bottom of the conical shell (31) is fixedly connected to the top of the fixed block (11), two groups of cross bars (32) are fixedly installed at the upper middle position of the conical shell (31), the bottom inner wall of the conical shell (31) is fixedly connected to a Y-shaped block (33), the left end of the Y-shaped block (33) is fixedly connected to an inclined rod (34), and the bottom inner wall of the conical shell (31) is fixedly connected to a circular ring (47).

5. A portable cargo handling device according to claim 4, characterized in that: The hoisting assembly (5) comprises two longitudinal rods (51), both of which are installed through the top of the conical shell (31) and fixedly connected to the inner wall of the return block (41), the tops of the two longitudinal rods (51) are fixedly connected to an I-beam (52), the outer edges of the I-beam (52) are movably connected to two groups of pulleys (53), the rotating shafts of the two groups of pulleys (53) are fixedly connected to U-shaped rods (54), the bottom ends of the two groups of U-shaped rods (54) are fixedly connected to trapezoidal blocks (55), a winch (56) is fixedly installed in the middle of the trapezoidal block (55), the outer edge of the winch (56) is wound with a steel cable (57), and the bottom end of the steel cable (57) is fixedly connected to a hook (58).

6. A portable cargo handling device according to claim 1, characterized in that: The lifting assembly (6) comprises a return groove (61), wherein the return groove (61) is movably clamped in the long groove (12), four universal wheels (62) are fixedly installed at the bottom of the return groove (61), two X-shaped plates (63) are movably clamped on the inner wall of the return groove (61), two clamping wheels (64) are rotatably installed on the outer sides of the two X-shaped plates (63), and two groups of clamping wheels (64) are movably clamped in the return groove (61), a circular shaft (65) is movably hinged at the middle position of the two X-shaped plates (63), a hydraulic rod (66) is movably hinged at the middle position of the circular shaft (65), and the right end of the hydraulic rod (66) is fixedly connected to the inner side of the return groove (61), and the left and right inner walls of the two X-shaped plates (63) are movably hinged with bent columns (67), and support plates (68) are fixedly installed on the tops of the two groups of bent columns (67).

7. A portable cargo handling device according to claim 6, characterized in that: A hole is provided at the diagonal portion of the return groove (61) for the insertion of a latch pin (14). The return groove (61) is fixedly mounted in the long groove (12) via the latch pin (14). The telescopic end of the hydraulic rod (66) is movably hinged to the round shaft (65).

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