CN111230185B - Handheld anti-skid positioning electric drill - Google Patents
Handheld anti-skid positioning electric drill Download PDFInfo
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- CN111230185B CN111230185B CN202010246533.3A CN202010246533A CN111230185B CN 111230185 B CN111230185 B CN 111230185B CN 202010246533 A CN202010246533 A CN 202010246533A CN 111230185 B CN111230185 B CN 111230185B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
- B23B45/02—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor driven by electric power
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
- B23B45/003—Attachments
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B49/00—Measuring or gauging equipment on boring machines for positioning or guiding the drill; Devices for indicating failure of drills during boring; Centering devices for holes to be bored
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Abstract
A handheld anti-skid positioning electric drill comprises an electric drill shell part, a drilling adjusting part, a positioning part telescoping mechanism and a positioning mechanism; the drilling adjusting part is arranged in the electric drill shell part; the positioning part telescopic mechanism is slidably arranged in the electric drill shell part; the positioning mechanism is arranged on the positioning part telescopic mechanism and is in contact with the drilling hole adjusting part; according to the invention, the positioning mechanisms are arranged, so that different surface punching can be adapted to different surface punching, the damage to the punching surface caused in the punching process is prevented, the punching is convenient, the sliding can be prevented, the punching surface can be protected, and the failure rate is reduced; the position of the clamping block is adjusted by adjusting the position of the pushing rod, so that the compression distance of the positioning rod is determined to determine the drilling depth of the electric drill, the electric drill can rotate to a fixed depth, and the working quality is improved.
Description
Technical Field
The invention relates to the technical field of electric tools, in particular to a handheld anti-skid positioning electric drill.
Background
The handheld electric drill is an electric tool which is most frequently used by people, has the advantages of convenience, low price and portability, is well received by workers in the industries of hardware and decoration, and can slip when the workers use the handheld electric drill to drill holes because some holes need to be drilled in a smooth metal surface or a metal groove, and the phenomenon of slipping can occur, and the holes are difficult to drill and scratch on the metal surface is caused due to slipping, so that the work failure is caused.
The patent numbers are as follows: 2012100945929 discloses an improved anti-skid electric drill, which comprises an electric drill body, an electric drill head seat, a drill bit and a handle, wherein the electric drill body is provided with a telescopic tip which has anti-skid effect, but the tip can cause scratch to the surface of a drilling object to damage the drilling object, and simultaneously, the anti-skid effect is achieved by using the tip and the drill bit, and the two support points are both sharp or round, so that the anti-skid effect is poor and the surface of the drilling object is easy to damage.
The patent numbers are: 2012206618305 discloses a handheld anti-skid electric drill, including drill chuck, torque cover, gearbox assembly, motor, casing, push rod and setting switch assembly and battery package in the casing, motor output pass through the gearbox assembly transmits to the main shaft, drill chuck front end installation pawl screw, be equipped with torque cover inner circle between torque cover and the gearbox assembly, casing handle department is equipped with the antiskid cover. The utility model aims at designing a handheld anti-skid electric drill, the arrangement of the anti-skid sleeve on the casing can not only reduce the fatigue feeling of long-term use of a user, but also play a role of skid resistance; the anti-slip cover is arranged at the handle of the shell to achieve the anti-slip purpose, and the method can prevent the handle from sliding to a certain extent but cannot solve the problem of the sliding of the drill bit.
Meanwhile, for some workpieces with requirements on the drilling depth, the handheld electric drill cannot set the specific drilling depth, so that drilling failure and even damage of drilling parts are caused due to over-deep or over-shallow drilling, and therefore the handheld electric drill capable of achieving anti-skidding positioning is needed.
Disclosure of Invention
Aiming at the problems, the invention prevents the damage of the punching surface caused in the punching process and is convenient for punching by arranging the positioning mechanism and adapting to different surface punching through different positioning mechanisms, thereby preventing the sliding and protecting the punching surface and reducing the failure rate; the rotary wheel mechanism is rotated to drive the inclined plane to rotate, so that the push rod extends and retracts along the inclined plane of the inclined plane, and the position of the clamping block is adjusted by adjusting the position of the push rod to determine the compression distance of the positioning rod; the positioning mechanism is arranged at the outer end of the positioning rod, the position of the clamping block is adjusted by adjusting the position of the pushing rod, and then the compression distance of the positioning rod is determined to determine the drilling depth of the electric drill, so that the electric drill can rotate to a fixed depth, and the working quality is improved.
The technical scheme adopted by the invention is as follows: a handheld anti-skid positioning electric drill comprises an electric drill shell part, a drilling adjusting part, a positioning part telescoping mechanism and a positioning mechanism; the drilling adjusting part is arranged in the electric drill shell part; the positioning part telescopic mechanism is slidably arranged in the electric drill shell part; the positioning mechanism is arranged on the positioning part telescopic mechanism and is in contact with the drilling hole adjusting part;
the drilling adjusting part comprises a rotating wheel mechanism, a push rod, a clamping block and a positioning rod; one end of the push rod is connected with the inclined plane of the rotating wheel mechanism in a sliding way; the positioning rod is slidably arranged in the groove of the pushing rod, and a clamping block is arranged on the side surface of the positioning rod; the rotating wheel mechanism is rotated to drive the inclined plane to rotate, so that the push rod stretches along the inclined plane of the inclined plane, and the position of the clamping block is adjusted by adjusting the position of the push rod to determine the compression distance of the positioning rod;
the positioning mechanism is arranged at the outer end of the positioning rod, and the position of the clamping block is adjusted by adjusting the position of the pushing rod so as to determine the compression distance of the positioning rod to determine the drilling depth of the electric drill.
Furthermore, the positioning mechanism comprises a plane positioning mechanism, a groove positioning mechanism and a spherical groove positioning mechanism, and rubber is arranged on the contact surface of the positioning mechanism to play a role in increasing friction force.
Further, the contact surface of the planar positioning mechanism can be set to different sizes and shapes according to different planar sizes and sizes of the hand-held electric drill.
The groove positioning mechanism sets the contact surface of the groove positioning mechanism into different shapes and sizes according to different groove depths and angles.
Further, the spherical groove positioning mechanism sets the contact surface of the spherical groove positioning mechanism to be different in shape and size according to different spherical groove depths and radians.
The rotating wheel mechanism comprises a rotating wheel, a positioning clamping groove, a hollow cylinder and an inclined plane, the rotating wheel is fixedly connected with the hollow cylinder through the cylinder, the positioning clamping groove is formed in the cylinder, and the positioning clamping groove is matched with a clamping bead of the rotating wheel to clamp the rotating wheel mechanism; an inclined plane is arranged on the hollow cylinder.
The electric drill shell comprises an electric drill shell, a battery, an electric drill touch switch, an electric drill manual switch, a motor, a gearbox, a drill bit connecting part, a drill bit screwing device and a drill bit clamp, wherein the battery is arranged in the electric drill shell; the electric drill touch switch is fixedly arranged in the electric drill shell; the electric drill manual switch is rotatably arranged on the electric drill shell, and the back of the electric drill manual switch is contacted with the electric drill touch switch; the gearbox input shaft is fixedly connected with a motor shaft through a coupler; the output shaft of the gearbox is fixedly connected with the drill bit connecting part; the drill bit clamp is fixedly connected with the drill bit connecting part; the drill bit screwing device is rotatably arranged on the drill bit clamp.
And furthermore, a drill clamp bearing is installed on the outer side of the drill connecting part, and the outer ring of the drill clamp bearing is fixedly connected with the electric drill shell.
Furthermore, the positioning part telescoping mechanism comprises a sliding column, a spring and a screw, the sliding column is slidably mounted in a groove of the electric drill shell, the spring is mounted on the sliding column, and the spring enables the sliding column to move towards the drill bit; the screw is arranged at the end head of the sliding column and used for fixing the positioning mechanism; the positioning part telescoping mechanism is used for supporting the positioning mechanism.
Further, different locations can be adapted by replacing different positioning mechanisms.
The invention has the beneficial effects that:
1. the rotary wheel mechanism is rotated to drive the inclined plane to rotate, so that the push rod extends and retracts along the inclined plane of the inclined plane, and the position of the clamping block is adjusted by adjusting the position of the push rod to determine the compression distance of the positioning rod; the positioning mechanism is arranged at the outer end of the positioning rod, the position of the clamping block is adjusted by adjusting the position of the pushing rod, and then the compression distance of the positioning rod is determined to determine the drilling depth of the electric drill, so that the electric drill can rotate to a fixed depth, and the working quality is improved.
2. The invention is suitable for different surface punching through arranging the positioning mechanism and different positioning mechanisms, prevents the punching surface from being damaged in the punching process and is convenient to punch, thereby preventing slipping and protecting the punching surface and reducing the failure rate.
3. The positioning part telescopic mechanism is used for fixing the positioning mechanism, so that the positioning mechanism is not deviated, and the finished product efficiency is improved.
Drawings
Fig. 1, fig. 2, fig. 3 and fig. 4 are schematic overall structural diagrams of the present invention.
Fig. 5 is a schematic structural view of a positioning portion telescoping mechanism of the present invention.
Fig. 6 and 7 are partial structural schematic diagrams of the present invention.
Figure 8 is a schematic view of the construction of the housing portion of the drill of the present invention
Fig. 9 and 10 are schematic structural views of a drilling adjusting part of the invention.
Fig. 11 and 12 are schematic structural views of the rotating wheel mechanism of the present invention.
Reference numerals: 10-an electric drill housing part, 20-a drilling adjustment part, 30-a positioning part telescoping mechanism, 40-a plane positioning mechanism, 50-a groove positioning mechanism, 60-a spherical groove positioning mechanism, 101-an electric drill housing, 102-a battery, 103-an electric drill touch switch, 104-an electric drill manual switch, 105-a bearing, 106-a rotating wheel clamp bead, 107-a motor, 108-a gearbox, 109-a drill bit connecting part, 110-a drill bit clamp bearing, 111-a drill bit screwing device, 112-a drill bit clamp, 201-a rotating wheel mechanism, 202-a positioning rod spring, 203-a push rod, 204-a clamp block, 205-a positioning rod, 2011-a rotating wheel, 2012-a positioning slot, 2013-a hollow cylinder, 2014-an inclined plane, a, 301-sliding column, 302-spring, 303-screw.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Referring to fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12, a hand-held anti-slip positioning electric drill comprises a drill housing portion 10, a drilling adjustment portion 20, a positioning portion telescoping mechanism 30 and a positioning mechanism; the drilling adjusting part 20 is arranged in the electric drill shell part 10; the positioning part telescoping mechanism 30 is slidably mounted in the drill housing part 10; the positioning mechanism is arranged on the positioning part telescopic mechanism 30 and is contacted with the drilling hole adjusting part 20;
the drilling adjusting part 20 comprises a rotating wheel mechanism 201, a positioning rod spring 202, a pushing rod 203, a fixture block 204 and a positioning rod 205; one end of the pushing rod 203 is connected with the inclined surface 2014 of the rotating wheel mechanism 201 in a sliding way; the positioning rod 205 is slidably arranged in a groove of the pushing rod 203, and a clamping block 204 is arranged on the side surface of the positioning rod 205; the positioning rod spring 202 is fixedly connected with the positioning rod 205, and the rod spring 202 enables the positioning rod 205 to move towards the drill bit; the rotating wheel mechanism 201 is rotated to drive the inclined surface 2014 to rotate, so that the pushing rod 203 extends and retracts along the inclined surface 2014, and the position of the clamping block 204 is adjusted by adjusting the position of the pushing rod 203 so as to determine the compression distance of the positioning rod 205;
the positioning mechanism is arranged at the outer end of the positioning rod 205, and the position of the fixture block 204 is adjusted by adjusting the position of the pushing rod 203 so as to determine the compression distance of the positioning rod 205 and determine the drilling depth of the electric drill.
In an alternative implementation of the embodiment of the present invention, as shown in fig. 1, fig. 2, fig. 3, and fig. 4, except for the same components as those in the previous embodiment, the positioning mechanism includes a plane positioning mechanism 40, a groove positioning mechanism 50, and a spherical groove positioning mechanism 60, rubber is provided on the contact surface of the positioning mechanism to increase the friction force of the friction wheel, and the friction force is increased by increasing the friction coefficient and the area, so that the slip is prevented when the electric drill is used for drilling; specifically, when the positioning mechanism is used, the positioning mechanism is placed on the surface of an object to be drilled, and then the electric drill is held by hand to drill holes;
the contact surface of the plane positioning mechanism 40 is set to be different in size and shape according to different plane sizes and sizes of the hand-held electric drill;
by providing the contact surface of the groove locating mechanism 50 in different shapes and sizes according to different groove depths and angles;
the contact surface of the spherical groove positioning mechanism 60 is set to different shapes and sizes according to different spherical groove depths and radians;
by designing different shapes according to different shapes, such as spherical surfaces, triangular grooves, semicircular grooves, and the like.
In an alternative implementation manner of the embodiment of the present invention, as shown in fig. 9, fig. 10, fig. 11, and fig. 12, except for the same components as in the previous embodiment, the rotating wheel mechanism 201 includes a rotating wheel 2011, a positioning slot 2012, a hollow cylinder 2013, and an inclined surface 2014, where the rotating wheel 2011 is fixedly connected to the hollow cylinder 2013 through a cylinder, the cylinder is rotatably installed in the bearing 105, the positioning slot 2012 is provided on the cylinder, and the positioning slot 2012 cooperates with the rotating wheel latching bead 106 to latch the rotating wheel mechanism 201; the hollow cylinder 2013 is provided with a bevel 2014.
In an alternative embodiment of an embodiment of the present invention, as shown in fig. 9, 10, 11 and 12, the drill housing portion 10 comprises, in addition to the same elements as in the previous embodiment, a drill housing 101, a battery 102, a drill touch switch 103, a drill hand switch 104, a bearing 105, a rotary wheel grip 106, a motor 107, a gearbox 108, a drill bit connection portion 109, a drill bit tightening device 111 and a drill bit holder 112, the battery 102 being mounted within the drill housing 101 to provide a power source; the electric drill touch switch 103 is fixedly arranged in the electric drill shell 101; the electric drill manual switch 104 is rotatably mounted on the electric drill shell 101, the back of the electric drill manual switch 104 is in contact with the electric drill touch switch 103, and the electric drill touch switch 103 is pressed down by manually pressing the electric drill manual switch 104 to switch on the electric drill; the input shaft of the gearbox 108 is fixedly connected with the motor shaft of the motor 107 through a coupler; the output shaft of the gearbox 108 is fixedly connected with the drill bit connecting part 109; the bit holder 112 is fixedly connected to the bit connection portion 109; the drill tightening device 111 is rotatably mounted on the drill clamp 112, and the drill clamp 112 clamps the drill by rotating the drill tightening device 111; a bearing 105 is arranged on the electric drill shell 101, and the inner ring of the bearing 105 is fixed with the rotating wheel mechanism 201; the rotating wheel clamping beads 106 are arranged on the electric drill shell 101, and elastic objects are arranged on the inner sides of the rotating wheel clamping beads 106 to enable the rotating wheel clamping beads 106 to move towards the direction of the positioning clamping grooves 2012 to clamp the positioning clamping grooves 2012;
a drill clamp bearing 110 is arranged on the outer side of the drill connecting part 109, and the outer ring of the drill clamp bearing 110 is fixedly connected with the electric drill shell 101.
In an alternative embodiment of the present invention, as shown in fig. 5, in addition to the same components as those in the previous embodiment, the positioning part telescoping mechanism 30 includes a sliding column 301, a spring 302 and a screw 303, wherein the sliding column 301 is slidably mounted in a groove of the electric drill housing 101, the spring 302 is mounted on the sliding column 301, and the sliding column 301 is moved towards the drill bit by the spring 302; the screw 303 is arranged at the end of the sliding column 301 and used for fixing the positioning mechanism; the positioning portion retracting mechanism 30 is used to support the positioning mechanism.
The device is suitable for different places by replacing different positioning mechanisms.
The working principle is as follows: when the positioning mechanism is used, different positioning mechanisms are selected by punching holes at different places, then the positioning mechanisms are arranged at the outer ends of the four sliding columns 301, the positioning mechanisms are fixed by rotating the four screws 303, the punching depth is determined by adjusting the rotating wheel 2011, when the rotating wheel 2011 rotates, the position of the push rod 203 is further adjusted by rotating the inclined plane on the hollow cylinder 2013, and the contraction distance of the positioning rod 205 is determined by adjusting the position of the push rod 203 so as to determine the contraction distance of the positioning mechanism; the drill clamp 112 is driven to punch holes by pressing the electric drill manual switch 104 to switch on the motor 107 so that the motor 107 drives the gearbox 108.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Claims (1)
1. A handheld anti-skid positioning electric drill is characterized by comprising an electric drill shell part (10), a drilling adjusting part (20), a positioning part telescoping mechanism (30) and a positioning mechanism; the drilling adjusting part (20) is arranged in the electric drill shell part (10);
the positioning part telescoping mechanism (30) is slidably arranged in the electric drill shell part (10); the positioning mechanism is arranged on the positioning part telescopic mechanism (30) and is contacted with the drilling hole adjusting part (20);
the drilling adjusting part (20) comprises a rotating wheel mechanism (201), a push rod (203), a fixture block (204) and a positioning rod (205), wherein one end of the push rod (203) is connected with an inclined surface (2014) of the rotating wheel mechanism (201) in a sliding mode; the positioning rod (205) is slidably arranged in a groove of the pushing rod (203), and a clamping block (204) is arranged on the side surface of the positioning rod (205); the rotating wheel mechanism (201) is rotated to drive the inclined plane (2014) to rotate, so that the pushing rod (203) stretches along the inclined plane of the inclined plane (2014), and the position of the clamping block (204) is adjusted by adjusting the position of the pushing rod (203) so as to determine the compression distance of the positioning rod (205);
the positioning mechanism is arranged at the outer end of the positioning rod (205), the position of the fixture block (204) is adjusted by adjusting the position of the pushing rod (203), and the compression distance of the positioning rod (205) is further determined to determine the drilling depth of the electric drill;
the positioning mechanism comprises a plane positioning mechanism (40), a groove positioning mechanism (50) and a spherical groove positioning mechanism (60), rubber is arranged on the contact surface of the positioning mechanism to play a role in increasing friction force, and the contact surface of the plane positioning mechanism (40) is set to be different in size and shape according to different plane sizes and the sizes of the handheld electric drills;
the groove positioning mechanism (50) is used for setting the contact surface of the groove positioning mechanism (50) into different shapes and sizes according to different groove depths and angles;
the spherical groove positioning mechanism (60) is characterized in that the contact surface of the spherical groove positioning mechanism (60) is set to be different in shape and size according to different spherical groove depths and radians;
the rotating wheel mechanism (201) comprises a rotating wheel (2011), a positioning clamping groove (2012), a hollow cylinder (2013) and an inclined plane (2014); the rotating wheel (2011) is fixedly connected with the hollow cylinder (2013) through the cylinder, a positioning clamping groove (2012) is formed in the cylinder, the positioning clamping groove (2012) is matched with the rotating wheel clamping bead (106) to clamp the rotating wheel mechanism (201), and an inclined surface (2014) is formed in the hollow cylinder (2013);
the electric drill shell part (10) comprises an electric drill shell (101), a battery (102), an electric drill touch switch (103), an electric drill manual switch (104), a motor (107), a gearbox (108), a drill bit connecting part (109), a drill bit screwing device (111) and a drill bit clamp (112), wherein the battery (102) is arranged in the electric drill shell (101); the electric drill touch switch (103) is fixedly arranged in the electric drill shell (101), the electric drill hand switch (104) is rotatably arranged on the electric drill shell (101), the back of the electric drill hand switch (104) is in contact with the electric drill touch switch (103), and an input shaft of the gearbox (108) is fixedly connected with a motor shaft of the motor (107) through a coupler; an output shaft of the gearbox (108) is fixedly connected with the drill bit connecting part (109); the drill bit clamp (112) is fixedly connected with the drill bit connecting part (109), and the drill bit screwing device (111) is rotatably arranged on the drill bit clamp (112);
a drill clamp bearing (110) is arranged on the outer side of the drill connecting part (109), and the outer ring of the drill clamp bearing (110) is fixedly connected with the electric drill shell (101); positioning portion telescopic machanism (30) are including sliding post (301), spring (302), screw (303), sliding post (301) slidable mounting in electric drill casing (101) recess, spring (302) are installed on sliding post (301), spring (302) make sliding post (301) to drill bit direction removal, screw (303) are installed and are used for fixed positioning mechanism in sliding post (301) end, positioning portion telescopic machanism (30) are used for supporting positioning mechanism, are suitable for different places through changing different positioning mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010246533.3A CN111230185B (en) | 2020-03-31 | 2020-03-31 | Handheld anti-skid positioning electric drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010246533.3A CN111230185B (en) | 2020-03-31 | 2020-03-31 | Handheld anti-skid positioning electric drill |
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| Publication Number | Publication Date |
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| CN111230185A CN111230185A (en) | 2020-06-05 |
| CN111230185B true CN111230185B (en) | 2021-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010246533.3A Active CN111230185B (en) | 2020-03-31 | 2020-03-31 | Handheld anti-skid positioning electric drill |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105436556A (en) * | 2015-12-26 | 2016-03-30 | 宁波鑫晟工具有限公司 | Hand-held electric drill |
| CN205650856U (en) * | 2016-05-09 | 2016-10-19 | 广东工业大学 | Novel handheld location electric drill |
| CN207735634U (en) * | 2018-01-08 | 2018-08-17 | 燕山大学 | A kind of multifunctional safe electric hand drill |
| CN110328385A (en) * | 2019-07-15 | 2019-10-15 | 镇江市凯越工具有限公司 | A kind of safety-type Universal flexible shaft electric hand drill |
| CN209504030U (en) * | 2018-12-06 | 2019-10-18 | 四川宝石机械石油钻头有限责任公司 | A kind of geology exploitation drill bit protective device |
| CN110508849A (en) * | 2019-08-09 | 2019-11-29 | 蚌埠学院 | A kind of antidetonation electric hand drill |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10442009B2 (en) * | 2017-01-31 | 2019-10-15 | Black & Decker Inc. | Drill with removable chuck |
-
2020
- 2020-03-31 CN CN202010246533.3A patent/CN111230185B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105436556A (en) * | 2015-12-26 | 2016-03-30 | 宁波鑫晟工具有限公司 | Hand-held electric drill |
| CN205650856U (en) * | 2016-05-09 | 2016-10-19 | 广东工业大学 | Novel handheld location electric drill |
| CN207735634U (en) * | 2018-01-08 | 2018-08-17 | 燕山大学 | A kind of multifunctional safe electric hand drill |
| CN209504030U (en) * | 2018-12-06 | 2019-10-18 | 四川宝石机械石油钻头有限责任公司 | A kind of geology exploitation drill bit protective device |
| CN110328385A (en) * | 2019-07-15 | 2019-10-15 | 镇江市凯越工具有限公司 | A kind of safety-type Universal flexible shaft electric hand drill |
| CN110508849A (en) * | 2019-08-09 | 2019-11-29 | 蚌埠学院 | A kind of antidetonation electric hand drill |
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| CN111230185A (en) | 2020-06-05 |
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Effective date of registration: 20211013 Address after: 321000 No. 1158, LongQian South Street, Jinhua City, Zhejiang Province Applicant after: ZHEJIANG KAICHUANG ELECTRIC Co.,Ltd. Address before: 075000 Room 303, unit 3, building 15, Huayuan community, Zhangbei County, Zhangjiakou City, Hebei Province Applicant before: Wu Wanyan |
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Denomination of invention: A handheld anti slip positioning electric drill Effective date of registration: 20230810 Granted publication date: 20211102 Pledgee: Industrial and Commercial Bank of China Limited Jinhua Branch Pledgor: ZHEJIANG KAICHUANG ELECTRIC CO.,LTD. Registration number: Y2023980051590 |