Small portable manual hoisting machine

Abstract

The utility model discloses a small portable manual hoisting machine, which relates to the field of hoisting mechanical equipment and comprises a base, a sleeve vertically arranged at the top end of the base, a rotating rod rotatably connected to the sleeve, a horizontal panel mounted at the top end of the rotating rod and hoisting equipment mounted on the horizontal panel, two vertical plates are mounted on the top surface of the horizontal panel; the hoisting equipment comprises a hoisting arm, a long arm, a short arm and a driving arm; hooks are arranged at the bottom ends of the suspension arms; the driving arm is connected with a screw vertically arranged on the horizontal panel through a driving frame, and the screw is connected with a screw motor arranged on the horizontal panel; a plurality of wheels are arranged at the bottom end of the base. The small-sized portable manual hoisting machine disclosed by the utility model is light in weight, movable and convenient to operate among a plurality of processing stations; the mode that the lifting arm is manually pushed and the remote controller controls the height of the bottom end of the lifting arm is adopted, and workpiece conveying between machining stations of different heights and different positions can be adapted; the device has the characteristics of simple structure, capability of saving manpower and simplicity in operation.

Description

Technical Field

[0001] This invention relates to the field of lifting machinery and equipment, and more particularly to a small, lightweight, manual lifting machine. Background Technology

[0002] In the manufacturing process, small workpieces and other items often need to be manually handled, and drilling and grinding operations are performed on operating platforms such as drilling machines and grinding machines, which is quite laborious. Existing small and medium-sized cranes can vertically lift and horizontally move heavy objects within a certain range. However, most of these cranes have fixed supports, their height cannot be adjusted, and their extension length can only be adjusted by the installation position. They only have simple rotation functions, which makes them very inconvenient to use. Summary of the Invention

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by providing a small, lightweight, manual hoisting machine that is movable and can be manually operated.

[0004] The technical solution adopted in this utility model is as follows.

[0005] A small, lightweight, manual hoisting machine is characterized by comprising a base, a sleeve vertically disposed at the top of the base, a rotating rod rotatably connected to the sleeve, a horizontal panel mounted at the top of the rotating rod, and hoisting equipment mounted on the horizontal panel.

[0006] Two parallel and perpendicular vertical panels are installed on the top surface of the horizontal panel.

[0007] The hoisting equipment includes a boom, a long boom, a short boom, and a drive boom. The bottom end of the short boom is hinged to a first hinge shaft located between two vertical plates and perpendicular to the two vertical plates. The top end of the long boom is hinged to the boom, the top end of the drive boom is hinged to the top end of the boom, and the bottom end of the short boom is hinged to the drive boom. The boom is parallel to the short boom, and the long boom is parallel to the drive boom. The bottom end of the boom is equipped with a hook.

[0008] The lower end of the drive arm is connected to the drive frame, and the drive frame is horizontally provided with a second hinge shaft perpendicular to the two upright plates; a screw through hole is provided directly below the midpoint of the second hinge shaft on the horizontal panel, a screw is installed in the screw through hole, the top end of the screw is hinged to the second hinge shaft, the bottom end of the screw is connected to the screw motor, and the screw motor is wirelessly connected to the remote control; several wheels are provided at the bottom of the base.

[0009] During operation, the screw motor is connected to a remote control, which controls the screw's lifting and lowering. Move the small, lightweight manual hoist to the side of the first workpiece processing station, turn on the remote control, and lower the lower end of the boom to a height accessible to a person. Manually push the boom to rotate the lever, moving the lower end of the boom above the first workpiece processing station. Turn on the remote control again, lowering the lower end of the hook to the top surface of the first workpiece processing station and stopping. Hang the workpiece to be hoisted onto the hook. Turn on the remote control again, raising the boom to lift the workpiece. Move the small, lightweight manual hoist to the side of the second processing station. Turn on the remote control again, lowering the boom to a height accessible to a person. Manually push the boom to rotate the lever, moving the lower end of the hook above the second workpiece processing station. Turn on the remote control again, moving the lower end of the hook to the top surface of the second workpiece processing station and stopping. Unload the workpiece.

[0010] Its advantages are: the small and lightweight manual hoist is lightweight and mobile, making it convenient to operate between multiple processing stations; it adopts the method of manually pushing the boom and controlling the height of the bottom of the boom with a remote control, which can adapt to the workpiece transportation between processing stations of different heights and positions; it has the characteristics of simple structure, saving manpower and easy operation.

[0011] As a preferred technical solution, the lower ends of the short arm and the drive arm are hinged together by a third hinge axis perpendicular to the two vertical plates.

[0012] As a preferred technical solution, the drive frame includes two transmission arms that are parallel to the drive arm and located on both sides of the drive arm. Each transmission arm is hinged to a third hinge shaft, which is located below the second hinge shaft. The top of each transmission arm is connected to the drive arm, and the second hinge shaft is connected to the two drive arms.

[0013] As a preferred technical solution, the top ends of each transmission arm are connected by a connecting rod parallel to the second hinge axis, and the connecting rod passes through the drive arm.

[0014] As a preferred technical solution, several guide rods are vertically arranged on both the side away from and the side closer to the two vertical panels on the top surface of the horizontal panel, opposite the second hinge axis. This technical solution is relatively safe to use.

[0015] As a preferred technical solution, a counterweight is movably connected below the second hinge shaft on each transmission arm.

[0016] As a preferred technical solution, several counterweight mounting holes are provided below the second hinge shaft on each transmission arm, and the counterweights are connected to one of the counterweight mounting holes with screws. This technical solution lowers the center of gravity of the small, lightweight manual hoist, making it safer to use.

[0017] As a preferred technical solution, the top end of the screw is provided with a second hinge shaft mounting hole, through which the second hinge shaft passes.

[0018] As a preferred technical solution, the top of the long arm is hinged to the boom via a fourth hinge axis, and the top of the drive arm is hinged to the top of the boom via a fifth hinge axis. Both the fourth and fifth hinge axes are perpendicular to the two upright plates.

[0019] As a preferred technical solution, the counterweight is equipped with a first warning sign, and the boom is equipped with a second warning sign. This technical solution is relatively safe to use. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of a preferred embodiment of the small, lightweight, manual hoisting machine of this utility model.

[0021] Figure 2 yes Figure 1 A magnified view of part A.

[0022] Figure 3 yes Figure 1 A magnified view of part B.

[0023] Figure 4 yes Figure 3 A magnified view of part C.

[0024] Figure 5 yes Figure 3 A magnified view of part D.

[0025] Figure 6 yes Figure 1 The diagram shows the usage status of a small, lightweight, manual hoisting machine.

[0026] Figure 7 yes Figure 6 A magnified view of part E.

[0027] Figure 8 yes Figure 6 A magnified view of part F.

[0028] Figure 9 yes Figure 1 The diagram shows the usage status of a small, lightweight, manual hoisting machine.

[0029] Figure 10 yes Figure 9 A magnified view of part G.

[0030] Figure 11 This is a structural schematic diagram of a preferred embodiment of the small, lightweight, manual hoisting machine of this utility model.

[0031] Figure 12 yes Figure 11 A magnified view of part H.

[0032] Figure 13 yes Figure 11A magnified view of part I.

[0033] Figure 14 yes Figure 13 A magnified view of part J.

[0034] Including: base-1; wheels-11;

[0035] Sleeve-2;

[0036] Rotary lever -3;

[0037] Horizontal panel-4; Vertical panel-41; Screw-42; Second hinge shaft mounting hole-421;

[0038] Screw motor - 43; Screw through hole - 45; Guide rod - 46;

[0039] Boom-5; Long boom-51; Short boom-52; Drive boom-53;

[0040] Drive frame-54; Transmission arm-541; Connecting rod-542; Counterweight-543; Counterweight mounting hole-544;

[0041] First hinge axis -6; Second hinge axis -61; Third hinge axis -62; Fourth hinge axis -63; Fifth hinge axis -64;

[0042] Hook-7; First warning sign-71; Second warning sign-72. Detailed Implementation

[0043] The present invention will now be further described in conjunction with the accompanying drawings and embodiments.

[0044] Example 1. As... Figure 1-10 As shown, a small, lightweight manual hoisting machine is characterized by comprising: a base 1, a sleeve 2 vertically disposed at the top of the base 1, a rotating rod 3 rotatably connected to the sleeve 2, a horizontal panel 4 mounted at the top of the rotating rod 3, and hoisting equipment mounted on the horizontal panel 4.

[0045] Two parallel and perpendicular vertical plates 41 are installed on the top surface of the horizontal panel 4.

[0046] The hoisting equipment includes a boom 5, a long boom 51, a short boom 52, and a drive boom 53. The bottom end of the long boom 51 and the short boom 52 are hinged to a first hinge shaft 6 located between the two upright plates 41 and perpendicular to the two upright plates 41. The top end of the long boom 51 is hinged to the boom 5, the top end of the drive boom 53 is hinged to the top end of the boom 5, and the bottom end of the short boom 52 is hinged to the drive boom 53. The boom 5 is parallel to the short boom 52, and the long boom 51 is parallel to the drive boom 53. The bottom end of the boom 5 is provided with a hook 7.

[0047] The lower end of the drive arm 53 is connected to the drive frame 54.

[0048] like Figure 4 As shown, a second hinge shaft 61 perpendicular to the two upright plates 41 is provided horizontally on the drive frame 54.

[0049] like Figure 5 As shown, a screw through hole 45 is provided directly below the midpoint of the second hinge shaft 61 on the horizontal panel 4, and a screw 42 is installed on the screw through hole 45.

[0050] like Figure 4 As shown, the top end of the screw 42 is hinged to the second hinge shaft 61.

[0051] The bottom end of screw 42 is connected to screw motor 43, which is wirelessly connected to remote control. The remote control is not shown in the diagram; it controls the screw motor 43 to operate, thereby driving screw 42 to rise and fall. The rising and falling movement of screw 42 drives the drive arm 53 to move, which in turn drives hook 7 to rise and fall. Several wheels 11 are provided at the bottom end of base 1.

[0052] During operation, the operator controls the screw motor 43 via remote control, thereby controlling the lifting and lowering of the screw 42. For example... Figure 6 As shown, a small, lightweight manual hoist is manually pushed to one side of the first workpiece processing station 8. The remote control is turned on, and the lower end of the boom 5 is lowered to a height accessible to the operator. The boom 5 is then manually pushed to rotate the lever 3, moving the lower end of the boom 5 above the first workpiece processing station 8. The remote control is then turned on again, and the lower end of the hook 7 is lowered to the top surface of the first workpiece processing station 8, stopping. The workpiece 82 to be hoisted is then hooked onto the hook 7. The remote control is then turned on again, and the boom 5 is raised to lift the workpiece. The remote control is then turned on again, and the boom 5 is lowered to a height accessible to the operator. The boom 5 is then manually pushed to rotate the lever 3, moving the lower end of the hook 7 above the second workpiece processing station 81. The remote control is then turned on again, moving the lower end of the hook 7 to the top surface of the second workpiece processing station 81, stopping. Figure 9 As shown, workpiece 82 is unloaded and moved to the second workpiece processing station 81. The first workpiece processing station 8 is a drilling station. The second workpiece processing station 81 is a grinding station.

[0053] The lower ends of the short arm 52 and the drive arm 53 are hinged by a third hinge shaft 62 perpendicular to the two upright plates 41. The third hinge shaft 62 passes through the drive arm 53.

[0054] like Figure 3 As shown, the drive frame 54 includes two transmission arms 541 that are parallel to the drive arm 53 and located on both sides of the drive arm 53 respectively. Each transmission arm 541 is hinged to a third hinge shaft 62, which is located below the second hinge shaft 61. The top of each transmission arm 541 is connected to the drive arm 53, and the second hinge shaft 61 is connected to the two drive arms 53.

[0055] like Figure 5As shown, the top ends of each transmission arm 541 are connected by a connecting rod 542 parallel to the second hinge shaft 61, and the connecting rod 542 passes through the drive arm 53.

[0056] like Figure 8 As shown, two guide rods 46 are vertically arranged on the top surface of the horizontal panel 4, on the side away from the two vertical plates 41 and on the side closer to the two vertical plates 41. This technical solution is relatively safe to use.

[0057] A counterweight 543 is movably connected below the second hinge shaft 61 on each transmission arm 541.

[0058] like Figure 4 As shown, the top end of the screw 42 is provided with a second hinge shaft mounting hole 421, and the second hinge shaft 61 passes through the second hinge shaft mounting hole 421.

[0059] like Figure 2 As shown, the top end of the long arm 51 is hinged to the boom 5 via the fourth hinge shaft 63, and the top end of the drive arm 53 is hinged to the top end of the boom 5 via the fifth hinge shaft 64. Both the fourth hinge shaft 63 and the fifth hinge shaft 64 are perpendicular to the two upright plates 41.

[0060] This embodiment of the small, lightweight, manual hoisting machine is lightweight, portable, and easy to operate between multiple processing stations. It adopts a manual pushing method for the boom 5 and a remote control method for controlling the height of the bottom of the boom 5, which can adapt to the workpiece transportation between processing stations of different heights and positions. It features a simple structure, saves manpower, and is easy to operate.

[0061] Example 2. (As shown) Figure 11-14 As shown, the difference between this embodiment and Embodiment 1 is that the counterweight 543 is provided with a first warning sign 71, and the boom 5 is provided with a second warning sign 72. This technical solution is relatively safe to use. Each drive boom 541 has six counterweight mounting holes 544 below the second hinge shaft 61. The counterweight 543 is screwed into one of the counterweight mounting holes 544, which can lower the center of gravity of the small, lightweight manual hoist, making it relatively safe to use.

[0062] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A small, lightweight, hand-held hoist, characterized by: It includes a base (1), a sleeve (2) vertically set at the top of the base (1), a rotating rod (3) rotatably connected to the sleeve (2), a horizontal panel (4) installed at the top of the rotating rod (3), and a hoisting device installed on the horizontal panel (4); the top surface of the horizontal panel (4) is equipped with two parallel and perpendicular vertical plates (41). The hoisting equipment includes a boom (5), a long boom (51), a short boom (52), and a drive boom (53). The long boom (51) has its bottom end hinged to a first hinge shaft (6) located between two upright plates (41) and perpendicular to the two upright plates (41). The top end of the long boom (51) is hinged to the boom (5), and the top end of the drive boom (53) is hinged to the top end of the boom (5). The short boom (52) is hinged to the bottom end of the drive boom (53). The boom (5) is parallel to the short boom (52), and the long boom (51) is parallel to the drive boom (53). The bottom end of the boom (5) is provided with a hook (7). The lower end of the drive arm (53) is connected to the drive frame (54). The drive frame (54) is horizontally provided with a second hinge shaft (61) perpendicular to the two upright plates (41). A screw through hole (45) is provided directly below the midpoint of the second hinge shaft (61) on the horizontal panel (4). A screw (42) is installed on the screw through hole (45). The top end of the screw (42) is hinged to the second hinge shaft (61). The bottom end of the screw (42) is connected to the screw motor (43). The screw motor (43) is wirelessly connected to the remote control. Several wheels (11) are provided at the bottom end of the base (1).

2. The small, lightweight, manual hoisting machine as described in claim 1, characterized in that: The lower ends of the short arm (52) and the drive arm (53) are hinged by a third hinge shaft (62) perpendicular to the two upright plates (41).

3. A compact and lightweight hand hoist as claimed in claim 2 wherein: The drive frame (54) includes two transmission arms (541) located on both sides of the drive arm (53) and parallel to the drive arm (53). Each transmission arm (541) is hinged to a third hinge shaft (62), which is located below the second hinge shaft (61). The top of each transmission arm (541) is connected to the drive arm (53), and the second hinge shaft (61) is connected to the two drive arms (53).

4. A compact and lightweight hand hoist as claimed in claim 3 wherein: The top ends of each drive arm (541) are connected by a connecting rod (542) parallel to the second hinge shaft (61), and the connecting rod (542) passes through the drive arm (53).

5. A hand hoist as claimed in claim 3 wherein: Several guide rods (46) are provided vertically on the side of the second hinge shaft (61) on the top surface of the horizontal panel (4) away from the two vertical plates (41) and on the side close to the two vertical plates (41).

6. A hand hoist as claimed in claim 3 wherein: A counterweight (543) is movably connected below the second hinge shaft (61) on each transmission arm (541).

7. A compact and lightweight hand hoist as claimed in claim 6 wherein: Each transmission arm (541) has several counterweight mounting holes (544) below the second hinge shaft (61), and the counterweight (543) is screwed to a counterweight mounting hole (544).

8. A compact and lightweight hand hoist as claimed in claim 1, characterized in that: The top end of the screw (42) is provided with a second hinge shaft mounting hole (421), and the second hinge shaft (61) passes through the second hinge shaft mounting hole (421).

9. A compact and lightweight hand hoist as claimed in claim 1, characterized in that: The top end of the long arm (51) is hingedly connected with the jib (5) through a fourth hinge shaft (63), and the top end of the driving arm (53) is hingedly connected with the top end of the jib (5) through a fifth hinge shaft (64), and the fourth hinge shaft (63) and the fifth hinge shaft (64) are both perpendicular to the two vertical plates (41).

10. A compact and lightweight hand hoist as claimed in claim 1, characterized in that: The counterweight (543) is provided with a first warning sign (71), and the jib (5) is provided with a second warning sign (72).

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