Device for short-distance hoisting

Abstract

The utility model relates to the technical field of mechanical lifting, in particular to a device for short-distance lifting, which comprises a base, a rocker arm, a connecting arm and a lifting arm, one end of the rocker arm is connected with a rotating mechanism of the base, the other end of the rocker arm is connected with the connecting arm, and the connecting arm can rotate and be locked relative to the rocker arm so as to adjust a pitch angle formed by the rocker arm and the connecting arm. The other end of the connecting arm is connected with a hoisting arm, one end of the hoisting arm is rotationally connected with the connecting arm, and the other end of the hoisting arm is provided with a sling assembly; the device is simple in overall structure, can realize short-distance hoisting of heavy objects through the rocker arm, the connecting arm and the hoisting arm, and is convenient to adjust and small in occupied area.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical lifting, and particularly relates to a device for short-range hoisting. Background Art

[0002] In the prior art, there are more and more designs for hoisting devices, but various hoisting devices are relatively complex and occupy a large area. Especially when installing a short-range hoisting device on a limited site, for example, hoisting the garbage collected from sewer dredging from the inspection well to the ground and then transporting it away. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is that the existing devices for short-range hoisting are relatively complex and occupy a large area.

[0004] To solve the above problems, the following technical solutions are adopted by the utility model

[0005] A device for short-range hoisting, the hoisting device includes a base, a swing arm, a connecting arm and a load arm. One end of the swing arm is rotatably connected to the base, and the other end is connected with the connecting arm. One end of the connecting arm is rotatably connected to the swing arm and can move relative to the swing arm to adjust the pitch angle formed by the swing arm and the connecting arm. The other end of the connecting arm is connected with the load arm. One end of the load arm is connected to the connecting arm and can move relative to the load arm to adjust the pitch angle formed by the connecting arm and the load arm, and the other end is provided with a lifting tool assembly.

[0006] Preferably, it further includes a driving motor. The driving motor is arranged on the base, and the power output end of the driving motor is connected to the rotating shaft of the swing arm rotating relative to the base.

[0007] Preferably, a fixed shaft perpendicular to the swing arm is horizontally arranged on the base. A rotating sleeve is coaxially sleeved between the two ends of the fixed shaft through bearings. The end of the swing arm facing away from the connecting arm is radially fixedly connected to the rotating sleeve, and the rotating sleeve is connected to the output shaft of the driving motor.

[0008] Preferably, a rotating platform is further fixedly arranged on the base. The rotating output ring of the rotating platform is coaxially and fixedly connected to the rotating sleeve, and the output shaft of the driving motor is connected to the transmission input end of the rotating platform.

[0009] Preferably, a speed reducer is further arranged at the output end of the driving motor, and the output shaft of the driving motor is connected to the transmission input end of the rotating platform through the speed reducer.

[0010] Preferably, the driving motor is a servo motor.

[0011] Preferably, a rotating shaft is radially fixed on the connecting arm, and a shaft sleeve cooperating with the rotating shaft is provided at the position where the rocker arm is connected to the connecting arm. The shaft sleeve is fixedly arranged on the rocker arm. A plurality of through holes are radially arranged on the shaft sleeve, and a plurality of threaded holes are radially penetrated through the rotating shaft. Bolts are inserted into the threaded holes on the rotating shaft from the through holes on the shaft sleeve, so as to lock the rotation between the shaft sleeve and the rotating shaft.

[0012] Compared with the prior art, the advantages provided by the present utility model are as follows:

[0013] 1. In the present application, the driving motor can drive the rocker arm to rotate relative to the base, so as to realize lifting an object from a low place to a high place.

[0014] 2. The structure of the present application is simple and occupies a small area.

[0015] 3. After adjusting the relative angle between the connecting arm and the rocker arm in the present application, screwing the bolt into the threaded hole can fix the shaft sleeve relative to the rotating shaft, that is, the connecting arm and the rocker arm are relatively fixed. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the present application when lifting an object from a low place to a high place;

[0017] Figure 2 It is a top view of the present application;

[0018] Figure 3 It is a schematic diagram of the present application when lifting an object at a low place.

[0019] Description of the Reference Numerals in the Drawings

[0020] 1. Rocker arm; 2. Connecting arm; 3. Lifting arm; 4. Base; 5. Lifting tool assembly; 6. Driving motor; 7. Fixed shaft; 8. Rotating sleeve; 9. Rotating platform; 10. Rotating shaft; 11. Shaft sleeve; 12. Threaded hole; 13. Bolt. Detailed Embodiment

[0021] Please refer to Figures 1-3 , a device for short-range lifting. The lifting device includes a base 4, a rocker arm 1, a connecting arm 2 and a lifting arm 3. One end of the rocker arm 1 is rotatably connected to the base 4, and the other end is connected with the connecting arm 2. One end of the connecting arm 2 is rotatably connected to the rocker arm 1 and can move relative to the rocker arm 1 to adjust the pitch angle formed by the rocker arm 1 and the connecting arm 2. The other end of the connecting arm 2 is connected with the lifting arm 3. One end of the lifting arm 3 is rotatably connected to the connecting arm 2 and can move relative to the lifting arm 3 to adjust the pitch angle formed by the connecting arm 2 and the lifting arm 3. The other end is provided with a lifting tool assembly 5.

[0022] In this embodiment, during use, the base 4 is installed beside the object to be lifted. Then, according to the actual scenario requirements, the connecting arm 2 is rotated relative to the swing arm 1 and then the relative fixation between the connecting arm 2 and the swing arm is achieved. Finally, by driving the rotation of the swing arm 1, the lifting component 5 can lift an object from a lower position to a higher position. Such a design has a small floor area. At the same time, since the angle between the connecting arm 2 and the swing arm 1 can be adjusted, it is convenient to adjust the movement trajectory of the lifting component 5 after lifting the object according to the actual situation. The design of the base 4 enables the object lifted from a lower position to be placed on the base 4 and then transported away.

[0023] As a preferred manner, it further includes a driving motor 6. The driving motor 6 is disposed on the base 1, and the power output end of the driving motor 6 is in transmission connection with the rotating shaft of the swing arm 1 rotating relative to the base 4. In this way, the driving motor 6 can drive the swing arm 1 to rotate relative to the base 4, thereby achieving lifting an object from a lower position to a higher position.

[0024] As a preferred manner, a fixed shaft 7 perpendicular to the swing arm 1 is horizontally provided on the base 4. A rotating sleeve 8 is coaxially sleeved between the two ends of the fixed shaft 7 through bearings. One end of the swing arm 1 facing away from the connecting arm 2 is radially fixedly connected to the rotating sleeve 8, and the rotating sleeve 8 is in transmission connection with the output shaft of the driving motor 6. After such a setting, the fixed shaft 7 is stationary relative to the base 4. During use, the driving motor 6 drives the rotating sleeve 8 to rotate. Since the rotating sleeve 8 is coaxially sleeved on the fixed shaft 7, when the rotating sleeve 8 rotates, it rotates with the fixed shaft 7 as the rotation axis, and the rotation of the rotating sleeve 8 simultaneously drives the swing arm 1 to rotate with the fixed shaft 7 as the rotation center.

[0025] As a preferred manner, a rotating platform 9 is further fixedly provided on the base 4. The rotating output ring of the rotating platform 9 is coaxially fixedly connected to the rotating sleeve 8, and the output shaft of the driving motor 6 is in transmission connection with the transmission input end of the rotating platform 9. In this way, the rotating platform 9 can transmit the movement of the driving motor 6 to the rotating sleeve 8. The rotating platform 9 is a conventional mechanical component and can be directly obtained by purchase.

[0026] As a preferred manner, a speed reducer is further provided at the output end of the driving motor 6. The output shaft of the driving motor 6 is in transmission connection with the transmission input end of the rotating platform 9 through the speed reducer. The setting of the speed reducer can reduce the speed of the output shaft of the driving motor 6.

[0027] As a preferred manner, the driving motor 6 is a servo motor. The use of a servo motor makes the rotation control of the swing arm 1 more precise.

[0028] As a preferred embodiment, a rotating shaft 10 is radially fixed on the connecting arm 2. At the position where the swing arm 1 is connected to the connecting arm 2, a bush 11 that cooperates with the rotating shaft 10 is provided. The bush 11 is fixedly arranged on the swing arm 1. A plurality of through holes are radially arranged on the bush 11. A plurality of screw holes 12 are radially penetrated through the rotating shaft 10. Bolts are inserted into the screw holes on the rotating shaft 10 from the through holes on the bush 11, which can lock the rotation between the bush 11 and the rotating shaft 10. After such a setting, after adjusting the relative angle between the connecting arm 2 and the swing arm 1, inserting the bolt 13 through the through hole and then screwing it into the screw hole 12 can fix the bush 11 relative to the rotating shaft 10, that is, the connecting arm 2 and the swing arm 1 are relatively fixed.

Claims

1. A device for short-range lifting, characterized in that: The lifting device comprises a base (4), a rocker arm (1), a connecting arm (2) and a lifting arm (3); one end of the rocker arm (1) is rotatably connected to the base (4), and the other end is connected to the connecting arm (2); one end of the connecting arm (2) is rotatably connected to the rocker arm (1) and can move relative to the rocker arm (1) to adjust the pitch angle formed by the rocker arm (1) and the connecting arm (2); the other end of the connecting arm (2) is connected to the lifting arm (3); one end of the lifting arm (3) is rotatably connected to the connecting arm (2), and the other end is provided with a sling assembly (5).

2. The device for short-range lifting according to claim 1, characterized in that: It also comprises a driving motor (6), which is arranged on the base (4), and the power output end of the driving motor (6) is connected to the rotating shaft of the rocker arm (1) rotating relative to the base (4).

3. The device for short-range lifting according to claim 2, characterized in that: A fixed shaft (7) perpendicular to the rocker arm (1) is horizontally arranged on the base (4); a rotating sleeve (8) is arranged between the two ends of the fixed shaft (7) via a bearing coaxial sleeve; one end of the rocker arm (1) facing away from the connecting arm (2) is radially fixedly connected to the rotating sleeve (8); and the rotating sleeve (8) is connected to the output shaft of the drive motor (6).

4. The device for short-range lifting according to claim 3, characterized in that: A rotating platform (9) is also fixedly provided on the base (4); a rotating output ring of the rotating platform (9) is coaxially fixedly connected to the rotating sleeve (8); and an output shaft of the driving motor (6) is drivingly connected to a transmission input end of the rotating platform (9).

5. The device for short-range lifting according to claim 4, characterized in that: The output end of the driving motor (6) is also provided with a reducer, and the output shaft of the driving motor (6) is connected to the transmission input end of the rotating platform (9) through the reducer.

6. The device for short-range lifting according to claim 2, characterized in that: The driving motor (6) is a servo motor.

7. The device for short-range lifting according to claim 1, characterized in that: A rotating shaft (10) is radially fixedly arranged on the connecting arm (2); a shaft sleeve (11) matching with the rotating shaft (10) is arranged at a position on the rocker arm (1) where the rocker arm (1) is connected to the connecting arm (2); the shaft sleeve (11) is fixedly arranged on the rocker arm (1); a plurality of through holes are radially arranged on the shaft sleeve (11); a plurality of screw holes (12) are radially penetrating the rotating shaft (10); bolts are inserted from the through holes on the shaft sleeve (11) into the screw holes on the rotating shaft (10), so as to lock the rotation between the shaft sleeve (11) and the rotating shaft (10).

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