초록 ▼

A quick connection unit for hydraulic or pneumatic tools includes a female part having an axial passage and a lateral tube. A fixing bolt extends into the axial passage, and the female part is pivotable about the fixing bolt along a Y-axis. A path is defined in the shank of the fixing bolt which is

A quick connection unit for hydraulic or pneumatic tools includes a female part having an axial passage and a lateral tube. A fixing bolt extends into the axial passage, and the female part is pivotable about the fixing bolt along a Y-axis. A path is defined in the shank of the fixing bolt which is connected to the hydraulic or pneumatic tool. An L-shaped male part includes a horizontal tube and a vertical tube. The horizontal tube is rotatably connected to the lateral tube of the female part and communicates with the lateral passage in the lateral tube and the axial passage. The horizontal tube of the male part is pivotable about an X-axis of the lateral passage. A pipe is connected to an inlet of the vertical tube of the male part. The pipe can be rotated along the two axes relative to the hydraulic or pneumatic tool.

대표청구항 ▼

What is claimed is: 1. A quick connection unit for hydraulic or pneumatic tools, comprising: a female part having an axial passage defined therethough and a lateral tube extending radially from the female part, with a lateral passage defined through the lateral tube and communicating with the axial

What is claimed is: 1. A quick connection unit for hydraulic or pneumatic tools, comprising: a female part having an axial passage defined therethough and a lateral tube extending radially from the female part, with a lateral passage defined through the lateral tube and communicating with the axial passage; a fixing bolt including a shank and a head on an end of the shank, with the fixing bolt extending into the axial passage and the female part being pivotable about the shank of the fixing bolt along a Y-axis, with a path defined in the shank which is adapted to be connected to the hydraulic or pneumatic tool; and an L-shaped male part including a horizontal tube and a vertical tube which is vertical relative to the horizontal section, with the horizontal tube rotatably connected to the lateral tube of the female part and communicating with the lateral passage, with a first sealing device located to the horizontal tube, with the horizontal tube of the male part pivotable about an X-axis of the lateral passage, with the vertical tube including an inlet which communicates with an interior of the horizontal tube and the lateral passage, wherein the fixing bolt includes an engaging groove defined in an outer periphery thereof and a clip is engaged with the engaging groove, the clip is located beyond an open end of the axial passage of the female part. 2. The quick connection unit as claimed in claim 1, wherein the head of the fixing bolt is polygonal head. 3. The quick connection unit as claimed in claim 1, wherein threads are defined in an outer periphery of the fixing bolt and adapted to be connected with the hydraulic or pneumatic tool. 4. The quick connection unit as claimed in claim 1, wherein the fixing bolt includes an annular recessed area, the path is defined in the annular recessed area, and a second sealing device is located on the fixing bolt and located on two ends of the annular recessed area. 5. The quick connection unit as claimed in claim 4, wherein the second sealing device includes first and second grooves defined in an outer periphery of the fixing bolt and located on two ends of the annular recessed area, and two O-rings are engaged with the first and second grooves. 6. The quick connection unit as claimed in claim 1, wherein the first sealing device of the male part includes a groove defined in the horizontal tube thereof and an O-ring is engaged with the groove of the first sealing device to prevent leakage between the lateral tube of the female part and the horizontal tube. 7. The quick connection unit as claimed in claim 1, wherein the X-axis is perpendicular to the Y-axis. 8. A quick connection unit for hydraulic or pneumatic tools, comprising: a female part having an axial passage defined therethough and a lateral tube extending radially from the female part, with a lateral passage defined through the lateral tube and communicating with the axial passage; a fixing bolt including a shank and a head on an end of the shank, with the fixing bolt extending into the axial passage and the female part being pivotable about the shank of the fixing bolt along a Y-axis, with a path defined in the shank which is adapted to be connected to the hydraulic or pneumatic tool; and an L-shaped male part including a horizontal tube and a vertical tube which is vertical relative to the horizontal section, with the horizontal tube rotatably connected to the lateral tube of the female part and communicating with the lateral passage, with a first sealing device located to the horizontal tube, with the horizontal tube of the male part pivotable about an X-axis of the lateral passage, with the vertical tube including an inlet which communicates with an interior of the horizontal tube and the lateral passage, wherein the L-shaped male part includes a groove defined in the horizontal tube thereof, the lateral tube of the female part includes a threaded hole, a screw extends through the threaded hole and a distal end of the screw is located within the groove so that the horizontal tube is not disengaged from the lateral tube of the connection bolt. 9. The quick connection unit as claimed in claim 8, wherein the first sealing device of the male part includes a groove defined in the horizontal tube thereof and an O-ring is engaged with the groove of the first sealing device to prevent leakage between the lateral tube of the female part and the horizontal tube. 10. The quick connection unit as claimed in claim 8, wherein the X-axis is perpendicular to the Y-axis. 11. The quick connection unit as claimed in claim 8, wherein the head of the fixing bolt is a polygonal head. 12. The quick connection unit as claimed in claim 8, wherein threads are defined in an outer periphery of the fixing bolt and adapted to be connected with the hydraulic or pneumatic tool. 13. The quick connection unit as claimed in claim 8, wherein the fixing bolt includes an annular recessed area, the path is defined in the annular recessed area, and a second sealing device is located on the fixing bolt and located on two ends of the annular recessed area. 14. The quick connection unit as claimed in claim 13, wherein the second sealing device includes first and second grooves defined in an outer periphery of the fixing bolt and located on two ends of the annular recessed area, and two O-rings are engaged with the first and second grooves.