BACKGROUND
1. Technical Field
The present disclosure relates to compensation devices, and particularly to a level compensation device for compensating an angle of a lifting mechanism.
2. Description of Related Art
In order to press product, a lifting mechanism is used to horizontally press a pressing device which is horizontally placed on a product. However, the pressing device cannot horizontally press the product when there is angle formed by the lifting mechanism and the pressing device.
Therefore, what is needed is a level compensation device to overcome the described limitations.
A protrusion 203 is protruded from a first end 201 of the base 20. In one embodiment, the shape of an upper surface of the protrusion 203 is elliptic. The protrusion 203 defines a first axel hole 202 along a horizontally direction. A first opening 205 is defined in a second end 204 of the base 20. The fixing block 23 is rotatably connected to two sides of the first opening 205. Two fourth axel holes 206 are defined in two sides of the second end 204 of the base 20.
The fixing block 23 defines a fifth axel hole 233 aligned with the two fourth axels 206 along a horizontal direction, and defines a first perforation 232 along a vertical direction.
The level compensation device 2 further includes a third shaft 231. The third shaft 231 passes through the two fourth axels 206 and the fifth axel hole 233 to rotatably connect the fixing block 23 to the second end 204 of the base 20.
A first end 211 of the rotatable plate 21 defines a recessed portion 214 for receiving the protrusion 203. Two sides of the first end 211 define two second axel holes 215 aligned with the first axel hole 202. In one embodiment, the shape of the second axel hole 215 is stepped. The first end 211 further defines two third axel holes 213. A second end 212 of the rotatable plate 21 defines a groove 217 and two second blind holes 216.
The level compensation device 2 further includes a first shaft 25 and two first screws 26. The first shaft 25 defines two first bind holes 251 aligned with the two third axel holes 213. The first shaft 25 passes through the two second axel holes 215 and the first axel hole 202 to rotatably connect the rotatable plate 21 to the base 20. The two first screws 26 pass through the two third axel holes 213 to abut the two bind holes 251 of the first shaft 25 to fix the first shaft 25 within the two second axel holes 215, thereby keeping an angle formed by the rotatable plate 21 and the base 20. The diameter of the two second axel holes 215 gradually decreases along a direction from the first end 211 to the second end 212, due to the limitation of the diameter of second axel holes 215, the shaft 25 cannot be rotated within the two second axel holes 215 when the first shaft 25 is abut by the two first screws to move a predetermined distance along the two second axel holes 215.
A first end 221 of the adjustable plate 22 is movably placed in the groove 217. A second end 222 of the adjustable plate 22 defines a second opening 223 at a centre thereof. Two sides of the second end 222 of the adjustable plate 22 define two sixth axel holes 224.
The level compensation device 2 further includes a locking block 27 placed on the adjustable plate 22, a locking shaft 28 placed on the locking block 27 and two second screws 29. The locking block 27 defines two first threaded holes 272 aligned with the two second blind holes 216, and a second threaded hole 271. The two second screws 29 pass through the two first threaded holes 216 to fix the locking block 27 to the rotatable plate 21. The locking shaft 29 passes through the second threaded hole 271 to fix the rotatable plate 21 to the groove 217.
The movable mechanism 24 is movably placed in the second opening 223. The movable mechanism 24 includes an upper portion 241, a lower portion 244 fixed to the upper portion 241, a first bearing 240 placed on the lower portion 244, a bolt 249, and two second bearings 252. The upper portion 241 defines a second perforation 242. The lower portion 244 defines a seventh axel hole 246 aligned with the two sixth axel holes 224, and an eighth axel hole 243 communicating with the seventh axel hole 246 in a top portion. The bolt 249 defines a second through hole 248. The second bearing 252 defines a bearing hole 253. Each of the two second bearings 252 is placed between the lower portion 244 and the side of the second opening 223.
The level compensation device 2 includes a fourth shaft 245 defining a first through hole 247 in a centre. The bolt 249 passes through the second perforation 242, the eighth axel hole 243, the first bearing 240, the first perforation 232 to fix the movable mechanism 24 between the adjustable plate 22 and the fixing block 23. The fourth shaft 245 passes through the two sixth axel holes 224, the bearing hole 253 and the seventh axel hole 246 to rotatably connect the lower portion 244 to the second end 222 of the adjustable plate 22.
Although the present disclosure has been specifically described on the basis of the embodiments thereof, the disclosure is not to be construed as being limited thereto. Various changes or modifications may be made to the embodiments without departing from the scope and spirit of the disclosure.
Number | Date | Country | Kind |
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2012105422250 | Dec 2012 | CN | national |