CN109048354B - Reciprocating saw with drilling function - Google Patents
Reciprocating saw with drilling function Download PDFInfo
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- CN109048354B CN109048354B CN201810984439.0A CN201810984439A CN109048354B CN 109048354 B CN109048354 B CN 109048354B CN 201810984439 A CN201810984439 A CN 201810984439A CN 109048354 B CN109048354 B CN 109048354B
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- bevel gear
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- driving shaft
- drill bit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/02—Machine tools for performing different machining operations
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- Processing Of Stones Or Stones Resemblance Materials (AREA)
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Abstract
The invention discloses a reciprocating saw with a drilling function, and belongs to the field of electric tools. Including the casing, still include: the reciprocating saw device comprises a saw blade and a reciprocating driving device for driving the saw blade to reciprocate; the drilling device comprises a drill bit and a rotary driving device for driving the drill bit to rotate; a power device for providing power to the reciprocating drive device and the rotary drive device; and the switching device is used for switching the power device between the reciprocating driving device and the rotating driving device so as to realize that the power device can only drive any one of the reciprocating driving device and the rotating driving device at the same time. Compared with the prior art, the invention has the advantages that: the drilling device and the reciprocating saw device are combined into a whole, the use is convenient, the drilling device and the reciprocating saw device can be conveniently switched between power sources by utilizing the switching device, only one device can work at the same time, and the safety is ensured.
Description
Technical Field
The invention relates to the field of electric tools, in particular to a reciprocating saw with a drilling function.
Background
The saw is widely accepted by people as a common tool in daily life, but the traditional saw needs manual operation by people to finish the cutting purpose, and the operation has certain difficulty for families which only carry out manual operation by themselves.
Disclosure of Invention
The invention mainly aims to provide a reciprocating saw with a drilling function, which can solve the problem of single function of the reciprocating saw in the prior art.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
a reciprocating saw with a drilling function, comprising a housing, further comprising:
the reciprocating saw device comprises a saw blade and a reciprocating driving device for driving the saw blade to reciprocate;
the drilling device comprises a drill bit and a rotary driving device for driving the drill bit to rotate;
a power device for providing power to the reciprocating drive device and the rotary drive device;
and the switching device is used for switching the power device between the reciprocating driving device and the rotating driving device so as to realize that the power device can only drive any one of the reciprocating driving device and the rotating driving device at the same time.
Preferably, the reciprocating saw device comprises a driving wheel, a mounting connecting rod and a saw blade detachably mounted on the mounting connecting rod, the mounting connecting rod is provided with a driving chute, the driving wheel is provided with a driving rod which can be slidably arranged in the driving chute, and the driving rod is eccentrically arranged on the driving wheel.
Preferably, the drilling apparatus comprises a bit drive shaft and a drill bit removably connected to the bit drive shaft.
Preferably, the power device comprises a first bevel gear, a driving motor for driving the first bevel gear, a second bevel gear engaged with the first bevel gear, a saw blade driving shaft, a third bevel gear, a drill bit driving shaft and a fourth bevel gear, wherein the second bevel gear is rotatably arranged in the casing, the third bevel gear is arranged on the saw blade driving shaft in a transmission way, and the third bevel gear can move along the saw blade driving shaft in the axial direction; the fourth bevel gear is arranged on the drill bit driving shaft in a transmission mode, the fourth bevel gear can move along the axial direction of the drill bit driving shaft, the third bevel gear and the fourth bevel gear are matched with the second bevel gear, and only one of the third bevel gear and the fourth bevel gear is meshed with the second bevel gear at the same time.
Preferably, the third bevel gear and the fourth bevel gear are both provided with key slots, the saw blade driving shaft and the drill bit driving shaft are also provided with key slots, key blocks matched with the key slots are arranged in the key slots of the saw blade driving shaft and the drill bit driving shaft, and the third bevel gear and the fourth bevel gear are respectively arranged on the saw blade driving shaft and the drill bit driving shaft in an axially movable manner through the key blocks.
Preferably, the saw blade driving shaft and the drill bit driving shaft are provided with external splines, the third bevel gear and the fourth bevel gear are provided with internal splines matched with the external splines, and the third bevel gear and the fourth bevel gear are respectively arranged on the saw blade driving shaft and the drill bit driving shaft in an axially movable manner.
Preferably, the switching device comprises a switcher, a linkage device and a fixed block;
an arc-shaped limiting sliding groove is formed in the shell, and the drill bit driving shaft penetrates through the fixing block and is connected to the fourth bevel gear; the fixed block is provided with a limiting slide rod which can be slidably arranged in the limiting slide groove; the fixed block is used for driving the drilling device to move;
the switcher comprises a change-over switch, a first change-over pressure rod, a second change-over pressure rod, a first sliding baffle body, a second sliding baffle body and a reset spring, wherein one end of the first change-over pressure rod is hinged on the change-over switch, the other end of the first change-over pressure rod is abutted against the first sliding baffle body, and the middle part of the first change-over pressure rod is hinged on the shell; one end of the second switching pressure rod is hinged to the switching switch, the other end of the second switching pressure rod is abutted against the second sliding stop body, and the middle part of the second switching pressure rod is hinged to the shell; the shell is provided with a first accommodating groove and a second accommodating groove which are used for accommodating the first sliding baffle body and the second sliding baffle body respectively, one end of one reset spring is connected in the first accommodating groove, the other end of the reset spring is connected on the first sliding baffle body, one end of the other reset spring is connected in the second accommodating groove, the other end of the other reset spring is connected on the second sliding baffle body, and the first switching pressure lever and the second switching pressure lever can press the first sliding baffle body and the second sliding baffle body to be accommodated in the first accommodating groove and the second accommodating groove respectively when being pressed downwards; the first sliding blocking body and the second sliding blocking body are used for limiting the movement of the fixed block;
the linkage device comprises a first switching connecting rod, a second switching connecting rod, a first switching blocking body and a second switching blocking body, a fixed shaft is fixedly arranged on the shell, the second bevel gear is rotatably arranged on the fixed shaft, one end of the first switching connecting rod is eccentrically hinged on the fixed shaft, the other end of the first switching connecting rod is hinged on the first switching baffle body, and the hinge point of the first switching connecting rod is positioned at one side close to the first bevel gear, one end of the second switching connecting rod is hinged at the middle part of the first switching connecting rod, the other end is hinged on the second switching baffle body, the first switching baffle body and the second switching baffle body are both provided with baffle grooves for respectively accommodating the third bevel gear and the fourth bevel gear, the third bevel gear and the fourth bevel gear are driven to respectively move along the axial directions of the saw blade driving shaft and the drill bit driving shaft.
Compared with the prior art, the invention has the advantages that: the drilling device and the reciprocating saw device are combined into a whole, the use is convenient, the drilling device and the reciprocating saw device can be conveniently switched between power sources by utilizing the switching device, only one device can work at the same time, and the safety is ensured.
Drawings
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a schematic view of the external structure of the present invention;
FIG. 3 is a cross-sectional view A-A of the internal structure of the present invention;
FIG. 4 is a first schematic diagram of a switching structure of the drilling apparatus;
FIG. 5 is a second schematic diagram of a switching structure of the drilling device;
FIG. 6 is a third schematic diagram of a switching structure of the drilling device;
FIG. 7 is a first schematic structural view of a driving wheel and a mounting link;
FIG. 8 is a second schematic structural view of the driving wheel and the mounting link;
FIG. 9 is a cross-sectional view taken along line B-B of FIG. 1;
fig. 10 is a schematic structural view of the fixing block and the limiting chute.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.
As shown in FIGS. 1-10, one embodiment of the present invention: a reciprocating saw with a drilling function comprises a housing 10 and further comprises:
a reciprocating saw device comprising a saw blade 34 and a reciprocating drive device for driving the saw blade 34 to reciprocate;
a drilling device which comprises a drill bit 42 and a rotary driving device for driving the drill bit 42 to rotate;
a power device for providing power to the reciprocating drive device and the rotary drive device;
and the switching device is used for switching the power device between the reciprocating driving device and the rotating driving device so as to realize that the power device can only drive any one of the reciprocating driving device and the rotating driving device at the same time.
Specifically, the reciprocating saw device comprises a driving wheel 32, a mounting connecting rod 33 and a saw blade 34 detachably mounted on the mounting connecting rod 33, wherein the mounting connecting rod 33 is provided with a driving sliding groove 331, the driving wheel 32 is provided with a driving rod 321 which can be slidably arranged in the driving sliding groove 331, and the driving rod 321 is eccentrically arranged on the driving wheel 32.
Specifically, the drilling device includes a bit drive shaft 41 and a bit 42, and the bit 42 is detachably attached to the bit drive shaft 41.
Specifically, the power device comprises a first bevel gear 23, a driving motor 20 for driving the first bevel gear 23, a second bevel gear 24 engaged with the first bevel gear 23, a saw blade 34 driving shaft 31, a third bevel gear 30, a drill bit driving shaft 41 and a fourth bevel gear 40, wherein the second bevel gear 24 is rotatably arranged in the housing 10, the third bevel gear 30 is arranged on the saw blade 34 driving shaft 31 in a transmission way, and the third bevel gear 30 can move along the saw blade 34 driving shaft 31 in the axial direction; the fourth bevel gear 40 is arranged on the drill driving shaft 41 in a transmission manner, the fourth bevel gear 40 can move axially along the drill driving shaft 41, the third bevel gear 30 and the fourth bevel gear 40 are matched with the second bevel gear 24, and only one of the third bevel gear 30 and the fourth bevel gear 40 is meshed with the second bevel gear 24 at the same time.
Specifically, the third bevel gear 30 and the fourth bevel gear 40 are both provided with a key groove, the saw blade 34 driving shaft 31 and the drill driving shaft 41 are also provided with a key groove, a key block matching with the key groove is arranged in the key groove of the saw blade 34 driving shaft 31 and the drill driving shaft 41, and the third bevel gear 30 and the fourth bevel gear 40 are respectively arranged on the saw blade 34 driving shaft 31 and the drill driving shaft 41 in an axially movable manner through the key block.
Specifically, the saw blade 34 driving shaft 31 and the drill bit driving shaft 41 are provided with external splines, the third bevel gear 30 and the fourth bevel gear 40 are provided with internal splines matched with the external splines, and the third bevel gear 30 and the fourth bevel gear 40 are respectively axially movably disposed on the saw blade 34 driving shaft 31 and the drill bit driving shaft 41.
Specifically, the switching device includes a switcher, a linkage, and a fixed block 43;
an arc-shaped limiting chute 11 is formed in the housing 10, and the drill driving shaft 41 passes through the fixing block 43 and is connected to the fourth bevel gear 40; the fixed block 43 is provided with a limit slide rod which can be slidably arranged in the limit chute 11; the fixed block 43 is used for driving the drilling device to move;
the switcher comprises a switcher 50, a first switching pressure rod 51, a second switching pressure rod 52, a first sliding baffle body 53, a second sliding baffle body 54 and a return spring, wherein one end of the first switching pressure rod 51 is hinged on the switcher 50, the other end of the first switching pressure rod 51 is abutted against the first sliding baffle body 53, and the middle part of the first switching pressure rod 51 is hinged on the shell 10; one end of the second switching pressing rod 52 is hinged to the switch 50, the other end of the second switching pressing rod abuts against the second sliding stop body 54, and the middle part of the second switching pressing rod 52 is hinged to the shell 10; a first accommodating groove and a second accommodating groove for accommodating the first sliding stopper 53 and the second sliding stopper 54 respectively are formed in the housing 10, one end of one of the return springs is connected in the first accommodating groove, the other end of the one of the return springs is connected to the first sliding stopper 53, one end of the other of the return springs is connected in the second accommodating groove, the other end of the other of the return springs is connected to the second sliding stopper 54, and the first switching pressure lever 51 and the second switching pressure lever 52 can press the first sliding stopper 53 and the second sliding stopper 54 to be completely accommodated in the first accommodating groove and the second accommodating groove respectively when being pressed downwards; the first sliding stopper 53 and the second sliding stopper 54 are used for limiting the movement of the fixed block 43;
the linkage device comprises a first switching connecting rod 55, a second switching connecting rod 56, a first switching gear 57 and a second switching baffle 58, wherein a fixed shaft 12 is fixedly arranged on the shell 10, the second bevel gear 24 is rotatably arranged on the fixed shaft 12, one end of the first switching connecting rod 55 is eccentrically hinged on the fixed shaft 12, the other end of the first switching connecting rod 55 is hinged on the first switching baffle 57, the hinged point of the first switching connecting rod 55 is positioned at one side close to the first bevel gear 23, one end of the second switching connecting rod 56 is hinged in the middle of the first switching connecting rod 55, the other end of the second switching connecting rod 56 is hinged on the second switching baffle 58, the first switching baffle 57 and the second switching baffle 58 are respectively provided with baffle grooves for accommodating the third bevel gear 30 and the fourth bevel gear 40, and are used for driving the third bevel gear 30 and the fourth bevel gear 40 to respectively follow the saw blade 34 driving shaft 31 and the shaft of the drill bit driving shaft 41 And (4) moving.
In order to increase the rigidity of the saw blade 34 in use, a fixing block 3535 is further provided in the housing 10 in the extending direction of the saw blade 34. In order to control the rotation speed, the housing 1010 is further provided with a motor rotation speed control device 21 and a starting and speed regulating switch 22.
As shown in figure 1, the external structure is shown in figure 2, and the main body consists of a shell 10, a reciprocating saw device, a drilling device, a power device and a switching device.
It is not possible in the present invention for the third bevel gear 30 and the fourth bevel gear 40 to mesh with the second bevel gear 24 simultaneously, i.e. only one bevel gear at a time meshes with the second bevel gear 24. When the reciprocating saw device is used for cutting an object, namely the drilling device does not need to work, the position of the drilling device is as shown in figure 1, a first bevel gear 23 is meshed with a second bevel gear 24, the second bevel gear 24 is meshed with a third bevel gear 30, when a switch is started, a driving motor 20 drives the first bevel gear 23 to rotate through an output driving shaft, the rotating first bevel gear 23 drives the third bevel gear 30 to rotate through the second bevel gear 24, a saw blade 34 is driven to drive a driving shaft 31 to rotate, the saw blade 34 drives a driving wheel 32 through a transmission shaft, and finally, the reciprocating motion mounted on the saw blade 34 is realized through a mounting connecting rod 33; when the reciprocating saw device needs to perform a drilling operation, the saw blade 34 is firstly detached, the drill bit 42 is installed at the installation position of the drill bit 42, and then the switch 50 is pressed, the switch 50 compresses the first sliding stopper 53 and the second sliding stopper 54 by switching the first switching pressure lever 51 and the second switching pressure lever 52, after the first sliding stopper 53 and the second sliding stopper 54 are completely received in the first receiving groove and the second receiving groove, respectively, the drill bit 42 can be pulled to rotate along the limiting sliding groove 11 through the fixing block 43 of the drilling device to the position shown in fig. 6, and simultaneously, in the rotating process, as shown in fig. 1, one end of the first switching connecting rod 55 is eccentrically hinged on the fixing shaft 12 and is close to the direction of the first bevel gear 23, so that the fourth bevel gear 40 moves in the direction of being engaged with the fourth bevel gear 24 through a key connection or a second spline connection, meanwhile, since one end of the second switching link 56 is hinged to the middle of the first switching link 55, the second switching block 58 is forced to move away from the second bevel gear 24 during the rotation process, and the third bevel gear 30 is driven to move away from the second bevel gear 24. Finally, when the drill bit 42 is at the position shown in fig. 6, the fourth bevel gear 40 is engaged with the second bevel gear 24, the third bevel gear 30 is disengaged from the second bevel gear 24, and the switch 50 is released, so that the sliding stopper is restored to the original state under the action of the return spring, and the drilling device can be stopped. When the switch is started, the driving motor 20 drives the first bevel gear 23 to rotate through the output driving shaft and drives the fourth bevel gear 40 through the second bevel gear 24, thereby realizing the drilling function of the drill 42.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A reciprocating saw with a drilling function, comprising a housing (10), characterized by further comprising:
a reciprocating saw device comprising a saw blade (34) and a reciprocating drive device for driving the saw blade (34) to reciprocate;
the drilling device comprises a drill bit (42) and a rotary driving device for driving the drill bit (42) to rotate;
a power device for providing power to the reciprocating drive device and the rotary drive device;
the switching device is used for switching the power device between the reciprocating driving device and the rotating driving device so as to realize that the power device can only drive any one of the reciprocating driving device and the rotating driving device at the same time;
the switching device comprises a switcher, a linkage device and a fixed block (43);
the power device comprises a first bevel gear (23), a driving motor (20) for driving the first bevel gear (23), a second bevel gear (24) meshed with the first bevel gear (23), a saw blade driving shaft (31), a third bevel gear (30), a drill bit driving shaft (41) and a fourth bevel gear (40), wherein the second bevel gear (24) is rotatably arranged in the shell (10), the third bevel gear (30) is arranged on the saw blade driving shaft (31) in a transmission way, and the third bevel gear (30) can move axially along the saw blade driving shaft (31); the fourth bevel gear (40) is arranged on the drill bit driving shaft (41) in a transmission way, the fourth bevel gear (40) can move axially along the drill bit driving shaft (41), the third bevel gear (30) and the fourth bevel gear (40) are matched with the second bevel gear (24), and only one of the third bevel gear (30) and the fourth bevel gear (40) is meshed with the second bevel gear (24) at the same time;
an arc-shaped limiting sliding groove (11) is formed in the shell (10), and the drill bit driving shaft (41) penetrates through the fixing block (43) and is connected to the fourth bevel gear (40); the fixed block (43) is provided with a limiting slide rod which can be arranged in the limiting slide groove (11) in a sliding manner; the fixed block (43) is used for driving the drilling device to move;
the switcher comprises a switcher (50), a first switching pressure rod (51), a second switching pressure rod (52), a first sliding baffle body (53), a second sliding baffle body (54) and a return spring, one end of the first switching pressure rod (51) is hinged to the switcher (50), the other end of the first switching pressure rod is abutted against the first sliding baffle body (53), and the middle part of the first switching pressure rod (51) is hinged to the shell (10); one end of the second switching pressure rod (52) is hinged to the switching switch (50), the other end of the second switching pressure rod abuts against the second sliding blocking body (54), and the middle part of the second switching pressure rod (52) is hinged to the shell (10); a first accommodating groove and a second accommodating groove which are used for accommodating the first sliding blocking body (53) and the second sliding blocking body (54) respectively are formed in the shell (10), one end of one reset spring is connected into the first accommodating groove, the other end of the reset spring is connected onto the first sliding blocking body (53), one end of the other reset spring is connected into the second accommodating groove, the other end of the other reset spring is connected onto the second sliding blocking body (54), and the first switching pressure lever (51) and the second switching pressure lever (52) can press the first sliding blocking body (53) and the second sliding blocking body (54) to be accommodated into the first accommodating groove and the second accommodating groove respectively when being pressed downwards; the first sliding blocking body (53) and the second sliding blocking body (54) are used for limiting the movement of the fixed block (43);
the linkage device comprises a first switching connecting rod (55), a second switching connecting rod (56), a first switching baffle body (57) and a second switching baffle body (58), a fixed shaft (12) is fixedly arranged on the shell (10), the second bevel gear (24) is rotatably arranged on the fixed shaft (12), one end of the first switching connecting rod (55) is eccentrically hinged on the fixed shaft (12), the other end of the first switching connecting rod is hinged on the first switching baffle body (57), the hinged point of the first switching connecting rod (55) is positioned on one side close to the first bevel gear (23), one end of the second switching connecting rod (56) is hinged in the middle of the first switching connecting rod (55), the other end of the second switching baffle body is hinged on the second switching baffle body (58), and baffle grooves for accommodating a third bevel gear (30) and a fourth bevel gear (40) are respectively formed in the first switching baffle body (57) and the second switching baffle body (58), for driving the third bevel gear (30) and the fourth bevel gear (40) to move along the axial direction of the saw blade drive shaft (31) and the drill bit drive shaft (41), respectively.
2. A reciprocating saw with drilling function as defined in claim 1, wherein said reciprocating saw device comprises a driving wheel (32), a mounting link (33) and a saw blade (34) detachably mounted on said mounting link (33), said mounting link (33) having a driving runner (331), said driving wheel (32) being provided with a driving rod (321) slidably arranged in said driving runner (331), said driving rod (321) being eccentrically arranged on said driving wheel (32).
3. A reciprocating saw with drilling action according to claim 1, wherein said drilling means comprises a drill drive shaft (41) and a drill bit (42), said drill bit (42) being detachably connected to said drill drive shaft (41).
4. A reciprocating saw with a drilling function as claimed in claim 1, wherein the third bevel gear (30) and the fourth bevel gear (40) are both provided with a key slot, the saw blade driving shaft (31) and the drill bit driving shaft (41) are also provided with a key slot, a key block matched with the key slot is arranged in the key slot of the saw blade driving shaft (31) and the drill bit driving shaft (41), and the third bevel gear (30) and the fourth bevel gear (40) are respectively arranged on the saw blade driving shaft (31) and the drill bit driving shaft (41) in an axially movable manner through the key block.
5. The reciprocating saw with a drilling function as recited in claim 1, wherein the saw blade driving shaft (31) and the drill driving shaft (41) are provided with external splines, the third bevel gear (30) and the fourth bevel gear (40) are provided with internal splines matching with the external splines, and the third bevel gear (30) and the fourth bevel gear (40) are axially movably provided on the saw blade driving shaft (31) and the drill driving shaft (41), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810984439.0A CN109048354B (en) | 2018-08-28 | 2018-08-28 | Reciprocating saw with drilling function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810984439.0A CN109048354B (en) | 2018-08-28 | 2018-08-28 | Reciprocating saw with drilling function |
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| Publication Number | Publication Date |
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| CN109048354A CN109048354A (en) | 2018-12-21 |
| CN109048354B true CN109048354B (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810984439.0A Active CN109048354B (en) | 2018-08-28 | 2018-08-28 | Reciprocating saw with drilling function |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110207077A (en) * | 2019-04-17 | 2019-09-06 | 上海美翰灯具有限公司 | A kind of mini light night |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1898956A (en) * | 1932-03-22 | 1933-02-21 | Harvie Walter Eldridge | Saw attachment for electric drills |
| US5316415A (en) * | 1993-06-01 | 1994-05-31 | Yong Ho Chiu | Power drill adapter for sawing operation with a saw blade transmission |
| US5755293A (en) * | 1995-03-31 | 1998-05-26 | Bourke; George C. | Drill/saw apparatus |
| CN201423631Y (en) * | 2009-06-17 | 2010-03-17 | 姚耕 | Combined drill saw |
| CN102079061A (en) * | 2009-12-01 | 2011-06-01 | 苏州宝时得电动工具有限公司 | Power tool |
| WO2014121728A1 (en) * | 2013-02-06 | 2014-08-14 | 苏州宝时得电动工具有限公司 | Power tool and clamping device |
-
2018
- 2018-08-28 CN CN201810984439.0A patent/CN109048354B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1898956A (en) * | 1932-03-22 | 1933-02-21 | Harvie Walter Eldridge | Saw attachment for electric drills |
| US5316415A (en) * | 1993-06-01 | 1994-05-31 | Yong Ho Chiu | Power drill adapter for sawing operation with a saw blade transmission |
| US5755293A (en) * | 1995-03-31 | 1998-05-26 | Bourke; George C. | Drill/saw apparatus |
| CN201423631Y (en) * | 2009-06-17 | 2010-03-17 | 姚耕 | Combined drill saw |
| CN102079061A (en) * | 2009-12-01 | 2011-06-01 | 苏州宝时得电动工具有限公司 | Power tool |
| WO2014121728A1 (en) * | 2013-02-06 | 2014-08-14 | 苏州宝时得电动工具有限公司 | Power tool and clamping device |
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| CN109048354A (en) | 2018-12-21 |
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