Assertion: pile bore | /r/CapableOf | excavate bucket
Facets:
value: according to the present invention
type: OTHER
Source sentences:
text: The present invention relates generally to an under reaming pile bore excavating bucket and the method of excavating an under reamed part of a pile bore, and more particularly to an excavating bucket such that an under reamed part of a pile bore can be excavated and further the excavated soil can be moved into the bucket body for easy removal of soil.
text: A more detailed description of the prior-art pile bore excavating bucket will be made hereinafter with reference to the attached drawings under DETAILED DESCRIPTION OF THE INVENTION.
text: To achieve the above-mentioned object, the under reaming pile bore excavating bucket according to the present invention comprises: (a) a bucket body formed with side apertures near the lower part thereof; (b) a bucket bottom plate attached to the bottom thereof so as to open or close the bottom and formed with openable bottom apertures for taking excavated soil into the bucket body; (c) an outer pipe fixed to the bucket body at the center of the bucket body; (d) a drive shaft telescopically engaged with the outer pipe for rotating the bucket body when an excavating torque is applied, the drive shaft sliding downward when rotated in one direction and upward when rotated in the other direction: (e) a bucket cover engaged with the drive shaft and assembled with the bucket body so as to open the side apertures of the bucket body when rotated in one direction and close the side apertures when rotated in the other direction by the drive shaft; (f) a plurality of guide rails fixed to said outer pipe at an inclined angle with respect to the axis of the outer pipe; (g) a plurality of connecting rod, each of one ends of the rods being pivotably connected to the drive shaft, respectively: and (h) a plurality of slidable wing bits pivotably connected to each of the other ends of the connecting rods, respectively and slidably mounted on the guide rails at an appropriate bit angle to excavate an under reamed part of a pile bore.
text: The features and advantages of the under-reaming pile bore excavating bucket according to the present invention will be more clearly appreciated from the following description taken in conjunction with the accompanying drawings in which like reference numerals designate the same or similar elements or sections throughout the figures thereof and in which:
text: 1 is a general view showing a crane which drives a pile bore excavating bucket, for assistance in explaining earth drill method adopted for construction works;
text: 2(B) is a longitudinal cross sectional view, partly in side view, of the first embodiment of the pile bore excavating bucket according to the present invention, taken along the line II(B) - II(B) shown in Fig.
text: 3(A) is a lateral cross sectional view, partly in top view, of the first embodiment of the pile bore excavating bucket according to the present invention, in which the two wing drill bits are housed within the bucket;
text: 3(B) is a longitudinal cross sectional view, partly in side view, of the first embodiment of the pile bore excavating bucket according to the present invention, taken along the line III(B) - III(B) shown in Fig. 3 (A), in which the two wing drill bits are housed within the bucket;
text: In view of the above description, reference is now made to a first embodiment of an under reaming pile bore excavating bucket according to the present invention with reference to the attached drawings.
text: (B), (C), a second embodiment of an under reaming pile bore excavating bucket according to the present invention will be described hereinbelow.
text: The present invention relates generally to an under reaming pile bore excavating bucket and the method of excavating an under reamed part of a pile bore, and more particularly to an excavating bucket such that an under reamed part of a pile bore can be excavated and further the excavated soil can be moved into the bucket body for easy removal of soil.
text: A more detailed description of the prior-art pile bore excavating bucket will be made hereinafter with reference to the attached drawings under DETAILED DESCRIPTION OF THE INVENTION.
text: To achieve the above-mentioned object, the under reaming pile bore excavating bucket according to the present invention comprises: (a) a bucket body formed with side apertures near the lower part thereof; (b) a bucket bottom plate attached to the bottom thereof so as to open or close the bottom and formed with openable bottom apertures for taking excavated soil into the bucket body; (c) an outer pipe fixed to the bucket body at the center of the bucket body; (d) a drive shaft telescopically engaged with the outer pipe for rotating the bucket body when an excavating torque is applied, the drive shaft sliding downward when rotated in one direction and upward when rotated in the other direction; (e) a bucket cover engaged with the drive shaft and assembled with the bucket body so as to open the side apertures of the bucket body when rotated in one direction and close the side apertures when rotated in the other direction by the drive shaft; (f) a plurality of guide rails fixed to said outer pipe at an inclined angle with respect to the axis of the outer pipe; (g) a plurality of connecting rod, each of one ends of the rods being pivotably connected to the drive shaft, respectively; and (h) a plurality of slidable wing bits pivotably connected to each of the other ends of the connecting rods, respectively and slidably mounted on the guide rails at an appropriate bit angle to excavate an under reamed part of a pile bore.
text: The features and advantages of the under-reaming pile bore excavating bucket according to the present invention will be more clearly appreciated from the following description taken in conjunction with the accompanying drawings in which like reference numerals designate the same or similar elements or sections throughout the figures thereof and in which:
text: 1 is a general view showing a crane which drives a pile bore excavating bucket, for assistance in explaining earth drill method adopted for construction works;
text: 2(B) is a longitudinal cross sectional view, partly in side view, of the first embodiment of the pile bore excavating bucket according to the present invention, taken along the line II(B)--II(B) shown in FIG.
text: 3(A) is a lateral cross sectional view, partly in top view, of the first embodiment of the pile bore excavating bucket according to the present invention, in which the two wing drill bits are housed within the bucket;
text: 3(B) is a longitudinal cross sectional view, partly in side view, of the first embodiment of the pile bore excavating bucket according to the present invention, taken along the line III(B)--III(B) shown in FIG.
text: In view of the above description, reference is now made to a first embodiment of an under reaming pile bore excavating bucket according to the present invention with reference to the attached drawings.
text: (B), (C), a second embodiment of an under reaming pile bore excavating bucket according to the present invention will be described hereinbelow.