CN107931672A - A kind of efficient drill and its application method - Google Patents
A kind of efficient drill and its application method Download PDFInfo
- Publication number
- CN107931672A CN107931672A CN201711279817.7A CN201711279817A CN107931672A CN 107931672 A CN107931672 A CN 107931672A CN 201711279817 A CN201711279817 A CN 201711279817A CN 107931672 A CN107931672 A CN 107931672A
- Authority
- CN
- China
- Prior art keywords
- latch segment
- drill bit
- connecting sleeve
- hole
- drill
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000005553 drilling Methods 0.000 claims abstract description 37
- 238000009434 installation Methods 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 230000035939 shock Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 239000003292 glue Substances 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/12—Adapters for drills or chucks; Tapered sleeves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/40—Flutes, i.e. chip conveying grooves
Abstract
The present invention, which provides a kind of efficient drill and its application method, the drill bit, includes quick locking bolt, and latch segment, connecting sleeve, screws through hole, drilling rod, rotating handle, flight, chip-removal hole, main drill bit and crump guiding hole.Latch segment of the present invention is specifically using semicircle rubber block, latch segment and latch segment are oppositely arranged, latch segment is provided with multiple, quick locking bolt is threadedly coupled at left and right sides of the top of latch segment respectively, quick locking bolt is provided with multiple, can Fast Installation, driving device is held out against rapidly by the latch segment, it is easy to disassemble and safeguard；Lock spring be provided with it is multiple, lock spring one end connect latch segment right end, the other end connect connecting sleeve inner wall, play good shock absorbing effect, prevent the excessive main drill bit that breaks of drilling dynamics.
Description
Technical field
The invention belongs to drill technical field, more particularly to a kind of efficient drill and its user
Method.
Background technology
Drill bit（Drills）Be on solid material drilling go out through hole or blind hole, and can be to the knife of existing hole reaming
Tool.Common drill bit mainly has fluted drill, chit drill, centre drill, depth drill and cylindrical drill.Though reamer and counterbit cannot be in entities
Drill on material, but they are also traditionally included into drill bit one kind.
In the prior art, puncher can complete punching work or complete the work of nail pull out machine.Existing
In household assembling process, traditional bonding mode is instead of by splicing the modes such as bookbinding, allows people to do it yourself to complete
Household assembly working.But in actual use, it is necessary to the screw size constantly more bit change used according to furniture part,
The process of more bit change generally requires integrally to pull down drill bit, then reinstalls new drill bit.Such replacement process is on the one hand
It is extremely inconvenient, efficiency of assembling is greatly reduced, on the other hand, plugs drill bit puncher machine easy to wear from puncher repeatedly
Head, and plug repeatedly and easily cause drill bit to be loosened with puncher junction.
But existing drill is also low there is work efficiency, be not easy to installation and can only single borehole ask
Topic.
Therefore, a kind of efficient drill and its application method is invented to be very necessary.
The content of the invention
In order to solve the above technical problem, the present invention provides a kind of efficient drill and its application method, with
It is low there is work efficiency to solve existing drill, be not easy to installation and can only single borehole the problem of.
The present invention uses following technical scheme.
A kind of efficient drill, including quick locking bolt, latch segment, connecting sleeve, screw through hole, bore
Bar, rotating handle, flight, chip-removal hole, main drill bit and crump guiding hole, the outer wall spiral shell of the quick locking bolt-through connecting sleeve
Line connects latch segment；In the sliding slot that the inner wall that the latch segment is connected to connecting sleeve opens up；Described screws through hole difference
It is opened in the right side centre position of the front surface of connecting sleeve and the right side centre position of rear surface；The left end weldering of the drilling rod
Connect the right end of connecting sleeve；Rotating handle difference longitudinal measure two positions above and below the left side of drilling rod；Described is spiral
The outer wall integrated setting of piece and drilling rod；The chip-removal hole is laterally opened in the inside of drilling rod；The main drill bit thread connects
It is connected on the right end of drilling rod；The crump guiding hole is laterally opened in the inside of main drill bit；The connecting sleeve is additionally provided with sealing
Circle and lock spring, the sealing ring are arranged between latch segment and latch segment；The lock spring is connected to latch segment and company
Between female connector pipe.
Preferably, the drilling rod is additionally provided with chip space and rubber stopper, and the chip space and chip space open up in pairs
In the inner wall lateral position of drilling rod and lengthwise position；The rubber stopper is plugged at the row mouthful of chip space.
Preferably, the main drill bit is additionally provided with quick spin slot, adjusts small drill bit and threaded hole, the quick rotation
Groove is opened in the outer wall of main drill bit；The adjustable small drill bit thread is connected to inside threaded hole；The threaded hole opens up
Between quick spin slot and quick spin slot.
Preferably, the latch segment is specifically using semicircle rubber block；The latch segment and latch segment is oppositely arranged；
The latch segment is provided with multiple；Quick locking bolt is threadedly coupled at left and right sides of the top of the latch segment respectively；Institute
The quick locking bolt stated is provided with multiple.
Preferably, the lock spring is provided with multiple；The right end of lock spring one end connection latch segment, the other end
Connect the inner wall of connecting sleeve.
Preferably, the chip space is opened up as semi-cylindrical groove；The chip space is laterally opened up and indulged in pairs in pairs
Set to opening up.
Preferably, the rubber stopper is provided with multiple；The rubber stopper specifically uses rubber cup head and plantation rubber
Cylinder combined rubber plug.
Preferably, the quick spin slot laterally opens up in pairs and longitudinal direction opens up setting in pairs.
Preferably, the angle that opens up between the threaded hole and threaded hole is arranged to 115 degree to 120
Degree；The threaded hole is provided with multiple.
Preferably, the adjustable small drill bit offers a diameter of three centimetres to five of flat recess respectively using both ends of the surface
Centimetre stainless steel bit；The adjustable small drill bit is provided with multiple.
A kind of application method of efficient drill：
During installation, driving device is connected to by connecting sleeve 3, by adjusting quick locking bolt 1 so as to lock latch segment 2,
Fast Installation can be achieved, auxiliary installation can be carried out by rotating handle 6 for the ease of operation, installation effectiveness can be improved；
During work, rubber stopper 52 can be removed, carry out drilling chip removal work, in order to improve drilling efficiency, chip removal can be passed through
Groove 51 can improve solid capacity to the filling chip removal water in the inside of chip-removal hole 8, while by the setting of quick spin slot 91, can by adjusting
Position of the small drill bit 92 inside threaded hole 93 is adjusted, or reversely installation adjusts small drill bit 92, can carry out reaming work.
Beneficial effects of the present invention are：
1. in the present invention, the latch segment is specifically using semicircle rubber block；The latch segment and latch segment are set relatively
Put；The latch segment is provided with multiple；Quick locking bolt is threadedly coupled at left and right sides of the top of the latch segment respectively；
The quick locking bolt is provided with multiple, is conducive to Fast Installation, can hold out against driving device rapidly by the latch segment, just
In dismounting and safeguard.
2. in the present invention, the lock spring is provided with multiple；The right end of lock spring one end connection latch segment, separately
One end connects the inner wall of connecting sleeve, is conducive to play good shock absorbing effect, prevents the excessive main brill that breaks of drilling dynamics
Head.
3. in the present invention, the chip space is opened up as semi-cylindrical groove；The chip space laterally open up in pairs and into
Setting is opened up to longitudinal direction, is conducive to facilitate chip removal, the drilling efficiency of main drill bit can be improved, while prevents to block influence drill bit
Work.
4. in the present invention, the rubber stopper is provided with multiple；The rubber stopper specifically uses rubber cup head and rubber
Glue cylinder combined rubber plug, is conducive to conveniently open chip space at any time, easy to plug.
5. in the present invention, the quick spin slot laterally opens up in pairs and longitudinal direction opens up setting in pairs, be conducive to auxiliary master
Bit bore works, and improves solid capacity, and then improve drilling efficiency.
6. in the present invention, the adjustable small drill bit offers a diameter of three centimetres of flat recess using both ends of the surface respectively
To five centimetres of stainless steel bit；The adjustable small drill bit be provided with it is multiple, be conducive to increase the drill bit use function,
Can be by reversely installing adjustable small drill bit, progress reaming work is easy to operation.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention.
Fig. 2 is the structure diagram of the connecting sleeve of the present invention.
Fig. 3 is the structure diagram of the drilling rod of the present invention.
Fig. 4 is the structure diagram of the main drill bit of the present invention.
In figure：
1st, quick locking bolt；2nd, latch segment；3rd, connecting sleeve；31st, sealing ring；32nd, lock spring；4th, through hole is screwed；5th, drilling rod；
51st, chip space；52nd, rubber stopper；6th, rotating handle；7th, flight；8th, chip-removal hole；9th, main drill bit；91st, quick spin slot；92nd, adjust
Small drill bit；93rd, threaded hole；10th, crump guiding hole.
Embodiment
The present invention is described further below in conjunction with attached drawing：
Embodiment：
As shown in attached drawing 1 to attached drawing 4
A kind of efficient drill, including quick locking bolt 1, latch segment 2, connecting sleeve 3, screws through hole 4, drilling rod
5, rotating handle 6, flight 7, chip-removal hole 8, main drill bit 9 and crump guiding hole 10, the quick locking bolt 1 runs through connecting sleeve 3
Outer wall thread connection latch segment 2；In the sliding slot that the inner wall that the latch segment 2 is connected to connecting sleeve 3 opens up；The rotation
Twist the right side centre position of front surface and the right side centre position of rear surface that through hole 4 is opened in connecting sleeve 3 respectively；Described
The left end of drilling rod 5 is welded to connect the right end of casing 3；The rotating handle 6 distinguishes longitudinal measure two above and below the left side of drilling rod 5
Position；The flight 7 and the outer wall integrated setting of drilling rod 5；The chip-removal hole 8 is laterally opened in the inside of drilling rod 5；
The main drill bit 9 is threaded in the right end of drilling rod 5；The crump guiding hole 10 is laterally opened in the inside of main drill bit 9；It is described
Connecting sleeve 3 be additionally provided with sealing ring 31 and lock spring 32, the sealing ring 31 be arranged on latch segment 2 and latch segment 2 it
Between；The lock spring 32 is connected between latch segment 2 and connecting sleeve 3.
In above-described embodiment, specifically, the drilling rod 5 is additionally provided with chip space 51 and rubber stopper 52, the chip removal
Groove 51 and chip space 51 are opened in inner wall lateral position and the lengthwise position of drilling rod 5 in pairs；52 row of being plugged on of rubber stopper
At the row mouthful for considering groove 51 to be worth doing.
In above-described embodiment, specifically, the main drill bit 9 is additionally provided with quick spin slot 91, small 92 He of drill bit is adjusted
Threaded hole 93, the quick spin slot 91 are opened in the outer wall of main drill bit 9；The adjustable small drill bit 92 is threaded in spiral shell
Inside pit 93；The threaded hole 93 is opened between quick spin slot 91 and quick spin slot 91.
In above-described embodiment, specifically, the latch segment 2 is specifically using semicircle rubber block；2 He of latch segment
Latch segment 2 is oppositely arranged；The latch segment 2 is provided with multiple；Screw thread connects respectively at left and right sides of the top of the latch segment 2
Connect quick locking bolt 1；The quick locking bolt 1 is provided with multiple.
In above-described embodiment, specifically, the lock spring 32 be provided with it is multiple；32 one end of lock spring connection lock
The right end of tight block 2, the other end connect the inner wall of connecting sleeve 3.
In above-described embodiment, specifically, the chip space 51 is opened up as semi-cylindrical groove；The chip space 51 is paired
Laterally open up and longitudinal direction opens up setting in pairs.
In above-described embodiment, specifically, the rubber stopper 52 be provided with it is multiple；The rubber stopper 52 specifically uses rubber
Glue cup head and rubber cylinder combined rubber plug.
In above-described embodiment, specifically, the quick spin slot 91 laterally opens up in pairs and longitudinal direction opens up setting in pairs.
In above-described embodiment, specifically, the angle that opens up between the threaded hole 93 and threaded hole 93 is arranged to 100
15 degree to 120 degree；The threaded hole 93 is provided with multiple.
In above-described embodiment, specifically, the adjustable small drill bit 92 offers flat recess respectively using both ends of the surface
A diameter of three centimetres to five centimetres of stainless steel bit；The adjustable small drill bit 92 is provided with multiple.
A kind of application method of efficient drill：
In the present invention, during installation, driving device is connected to by connecting sleeve 3, by adjusting quick locking bolt 1 so that locking
Latch segment 2 can carry out auxiliary installation for the ease of operation, it can be achieved that Fast Installation by rotating handle 6, can improve installation effect
Rate, in use, can remove rubber stopper 52, carries out drilling chip removal work, in order to improve drilling efficiency, can pass through chip space
51 to the filling chip removal water in the inside of chip-removal hole 8, while by the setting of quick spin slot 91, can improve solid capacity, adjustable by adjusting
Position of the small drill bit 92 inside threaded hole 93 is saved, or reversely the adjustable small drill bit 92 of installation can carry out reaming work, just
In operation and use.
Using technical solutions according to the invention, or those skilled in the art is under the inspiration of technical solution of the present invention,
Similar technical solution is designed, and reaches above-mentioned technique effect, is to fall into protection scope of the present invention.
Claims (10)
1. a kind of efficient drill, it is characterised in that the efficient drill includes quick locking bolt
（1）, latch segment（2）, connecting sleeve（3）, screw through hole（4）, drilling rod（5）, rotating handle（6）, flight（7）, chip-removal hole（8）,
Main drill bit（9）And crump guiding hole（10）, the quick locking bolt（1）Through connecting sleeve（3）Outer wall thread connection locking
Block（2）；The latch segment（2）It is connected to connecting sleeve（3）The sliding slot that opens up of inner wall in；Described screws through hole（4）Point
Connecting sleeve is not opened in it（3）The right side centre position of front surface and the right side centre position of rear surface；The drilling rod（5）
Left end be welded to connect casing（3）Right end；The rotating handle（6）Longitudinal measure is in drilling rod respectively（5）Left side up and down two
Portion position；The flight（7）And drilling rod（5）Outer wall integrated setting；The chip-removal hole（8）Laterally it is opened in drilling rod
（5）Inside；The main drill bit（9）It is threaded in drilling rod（5）Right end；The crump guiding hole（10）Laterally it is opened in master
Drill bit（9）Inside；The connecting sleeve（3）It is additionally provided with sealing ring（31）And lock spring（32）, the sealing ring
（31）It is arranged on latch segment（2）And latch segment（2）Between；The lock spring（32）It is connected to latch segment（2）And connecting sleeve
（3）Between.
2. efficient drill as claimed in claim 1, it is characterised in that the drilling rod（5）The row of being additionally provided with
Consider groove to be worth doing（51）And rubber stopper（52）, the chip space（51）And chip space（51）It is opened in drilling rod in pairs（5）Inner wall it is horizontal
Position and lengthwise position；The rubber stopper（52）It is plugged on chip space（51）Row mouthful at.
3. efficient drill as claimed in claim 1, it is characterised in that the main drill bit（9）It is additionally provided with
Quick spin slot（91）, adjust small drill bit（92）And threaded hole（93）, the quick spin slot（91）It is opened in main drill bit（9）'s
Outer wall；The adjustable small drill bit（92）It is threaded in threaded hole（93）It is internal；The threaded hole（93）It is opened in fast
Fast spin slot（91）With quick spin slot（91）Between, the quick spin slot（91）Laterally open up in pairs and longitudinal open up sets in pairs
Put.
4. efficient drill as claimed in claim 1, it is characterised in that the latch segment（2）It is specific to use
Semicircle rubber block；The latch segment（2）And latch segment（2）It is oppositely arranged；The latch segment（2）It is provided with multiple；Institute
The latch segment stated（2）Top at left and right sides of respectively be threadedly coupled quick locking bolt（1）；The quick locking bolt（1）
It is provided with multiple.
5. efficient drill as claimed in claim 1, it is characterised in that the lock spring（32）It is provided with more
It is a；The lock spring（32）One end connects latch segment（2）Right end, the other end connection connecting sleeve（3）Inner wall.
6. efficient drill as claimed in claim 2, it is characterised in that the chip space（51）Open up as half
Cylindrical groove；The chip space（51）Laterally open up in pairs and longitudinal direction opens up setting in pairs.
7. efficient drill as claimed in claim 2, it is characterised in that the rubber stopper（52）It is provided with more
It is a；The rubber stopper（52）Specifically use rubber cup head and rubber cylinder combined rubber plug.
8. efficient drill as claimed in claim 3, it is characterised in that the threaded hole（93）And threaded hole
（93）Between the angle that opens up be arranged to 115 degree to 120 degree；The threaded hole（93）It is provided with multiple.
9. efficient drill as claimed in claim 3, it is characterised in that the adjustable small drill bit（92）Adopt
Offer a diameter of three centimetres to five centimetres of stainless steel bit of flat recess respectively with both ends of the surface；The adjustable small drill bit
（92）It is provided with multiple.
10. a kind of application method of efficient drill as claimed in claim 1, it is characterised in that during installation, lead to
Cross connecting sleeve（3）Driving device is connected to, by adjusting quick locking bolt（1）So that locking latch segment（2）It is, it can be achieved that fast
Speed installation, can pass through rotating handle for the ease of operation（6）Auxiliary installation is carried out, installation effectiveness can be improved；
, can be by rubber stopper during work（52）Remove, carry out drilling chip removal work, in order to improve drilling efficiency, row can be passed through
Consider groove to be worth doing（51）To chip-removal hole（The 8 filling chip removal water in inside, while pass through quick spin slot（91）Setting, solid capacity can be improved, passed through
Adjust and adjust small drill bit（92）In threaded hole（93）Internal position, or reversely installation adjusts small drill bit（92）, can be with
Carry out reaming work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711279817.7A CN107931672A (en) | 2017-12-06 | 2017-12-06 | A kind of efficient drill and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711279817.7A CN107931672A (en) | 2017-12-06 | 2017-12-06 | A kind of efficient drill and its application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107931672A true CN107931672A (en) | 2018-04-20 |
Family
ID=61945027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711279817.7A Pending CN107931672A (en) | 2017-12-06 | 2017-12-06 | A kind of efficient drill and its application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107931672A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723058A (en) * | 2019-02-18 | 2019-05-07 | 上海宝力通基础工程有限公司 | A kind of multi-shaft stirring stake drilling rod of quick release connection |
| CN112248251A (en) * | 2020-10-13 | 2021-01-22 | 江门市山子玻璃有限公司 | Drill bit quick-inserting device of vertical glass drilling machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB425706A (en) * | 1933-10-24 | 1935-03-20 | Frederick Bates | Means for retaining a drill or the like in a sleeve, socket or chuck |
| CN102389990A (en) * | 2011-11-24 | 2012-03-28 | 襄城县供电局 | Multipurpose drill bit |
| CN202336616U (en) * | 2011-09-30 | 2012-07-18 | 韩海民 | Hole expansion drill bit |
| CN203725845U (en) * | 2014-01-26 | 2014-07-23 | 二重集团（德阳）重型装备股份有限公司 | Deep hole spiral chip removal drill |
| CN204159936U (en) * | 2014-09-01 | 2015-02-18 | 李伟源 | A kind of drill bit |
| CN105134085A (en) * | 2015-08-20 | 2015-12-09 | 郑州神利达钻采设备有限公司 | Rotating drill bit with multiple drill sub-bits |
| CN105499644A (en) * | 2016-02-25 | 2016-04-20 | 浙江誉越家具有限公司 | Efficient chair leg chamfering machine |
| CN205816891U (en) * | 2016-07-01 | 2016-12-21 | 湖北大好工具有限公司 | A kind of diamond steel hangs drill bit |
| CN205816889U (en) * | 2016-07-07 | 2016-12-21 | 秦皇岛兴龙轮毂有限公司 | The drill bit with arc chip pocket a kind of of improvement |
| CN205851938U (en) * | 2016-08-12 | 2017-01-04 | 绵阳杰鑫工具科技有限公司 | A kind of telescopic depth drill |
| CN107322051A (en) * | 2017-07-17 | 2017-11-07 | 重庆市巨吉机电设备有限公司 | A kind of drill bit installing mechanism |
| CN207547707U (en) * | 2017-12-06 | 2018-06-29 | 郑州神利达钻采设备有限公司 | A kind of efficient drill |
-
2017
- 2017-12-06 CN CN201711279817.7A patent/CN107931672A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB425706A (en) * | 1933-10-24 | 1935-03-20 | Frederick Bates | Means for retaining a drill or the like in a sleeve, socket or chuck |
| CN202336616U (en) * | 2011-09-30 | 2012-07-18 | 韩海民 | Hole expansion drill bit |
| CN102389990A (en) * | 2011-11-24 | 2012-03-28 | 襄城县供电局 | Multipurpose drill bit |
| CN203725845U (en) * | 2014-01-26 | 2014-07-23 | 二重集团（德阳）重型装备股份有限公司 | Deep hole spiral chip removal drill |
| CN204159936U (en) * | 2014-09-01 | 2015-02-18 | 李伟源 | A kind of drill bit |
| CN105134085A (en) * | 2015-08-20 | 2015-12-09 | 郑州神利达钻采设备有限公司 | Rotating drill bit with multiple drill sub-bits |
| CN105499644A (en) * | 2016-02-25 | 2016-04-20 | 浙江誉越家具有限公司 | Efficient chair leg chamfering machine |
| CN205816891U (en) * | 2016-07-01 | 2016-12-21 | 湖北大好工具有限公司 | A kind of diamond steel hangs drill bit |
| CN205816889U (en) * | 2016-07-07 | 2016-12-21 | 秦皇岛兴龙轮毂有限公司 | The drill bit with arc chip pocket a kind of of improvement |
| CN205851938U (en) * | 2016-08-12 | 2017-01-04 | 绵阳杰鑫工具科技有限公司 | A kind of telescopic depth drill |
| CN107322051A (en) * | 2017-07-17 | 2017-11-07 | 重庆市巨吉机电设备有限公司 | A kind of drill bit installing mechanism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723058A (en) * | 2019-02-18 | 2019-05-07 | 上海宝力通基础工程有限公司 | A kind of multi-shaft stirring stake drilling rod of quick release connection |
| CN112248251A (en) * | 2020-10-13 | 2021-01-22 | 江门市山子玻璃有限公司 | Drill bit quick-inserting device of vertical glass drilling machine |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180420 |
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| RJ01 | Rejection of invention patent application after publication |