CN106945184A - Distribution box adsorbing powder dust method is installed - Google Patents
Distribution box adsorbing powder dust method is installed Download PDFInfo
- Publication number
- CN106945184A CN106945184A CN201710172552.4A CN201710172552A CN106945184A CN 106945184 A CN106945184 A CN 106945184A CN 201710172552 A CN201710172552 A CN 201710172552A CN 106945184 A CN106945184 A CN 106945184A
- Authority
- CN
- China
- Prior art keywords
- dust
- locating piece
- positioning table
- distribution box
- dust suction
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
- B28D1/146—Tools therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
- B28D7/02—Accessories specially adapted for use with machines or devices of the preceding groups for removing or laying dust, e.g. by spraying liquids; for cooling work
Abstract
The invention discloses distribution box adsorbing powder dust method is installed, comprise the following steps：Step A：First support meanss are connected with positioning table, location-plate is placed on drilling wall side, and the opening of the dust suction groove on positioning table is contacted with wall, then the hinge bar I in journal stirrup and hinge assembly, locating piece and hinge bar II are articulated and connected successively, subsequently screw rod is connected with locating piece, then connected the dust sucting pipeline that dust suction is inhaled with air suction opening；Step B：According to required height, rotary screw makes locating piece away from each other or close；Step C：Start dust catcher, then by the drill bit of boring bar tool from pilot hole is put into dust suction groove, and drill bit is contacted with corresponding bore position, finally start boring bar tool and drilled.With it, the powder produced during drill hole on wall is sucked into dust catcher, it not only avoid powder and drop on the ground, on the clothes of workman, it is thus also avoided that the air of installation personnel suction belts dust, protect the healthy of installation personnel.
Description
Technical field
The present invention relates to a kind of drill hole on wall dust exhaust apparatus, and in particular to installs distribution box adsorbing powder dust method.
Background technology
Distribution box is that switchgear, measuring instrumentss, protection electrical equipment and auxiliary equipment are assembled in into envelope by electrical wiring requirement
Close or semiclosed metal safe in or screen width on, constitute low-voltage distribution equipment.It can be connect during normal operation by manual or automatic switch
Logical or disjunction circuit.When fault or electrical equipment irregular operating, by protection electrical equipment cut-out circuit or alarm.Pass through phase
Operating various parameters can be shown by closing measuring instrumentss, and also some electric parameters can be adjusted, to deviateing normal work shape
Signal is pointed out or sent to state.Distribution box is usually used in each sending out, matching somebody with somebody, in electric substation.
The mounting means of distribution box mainly have it is bright fill wall-mounted, concealed installation console mode and bright dress console mode these three.In bright dress
In wall-mounted, distribution box is arranged on before wall, needs first to drill to wall, to install fixed distribution box.And in drilling
During, drill bit can cut into wall silt, fragment of brick etc. in powder, and powder can not only fall to the ground with this weight, be not easy to
Cleaning, can also fly away in atmosphere with air flow, the lung of installation personnel is damaged.
The content of the invention
Present invention aims at providing to install distribution box adsorbing powder dust method, the powder produced during drill hole on wall is solved
End is not only not easy to cleaning, the problem of also being damaged to the lung of installation personnel.
The present invention is achieved through the following technical solutions：
Distribution box adsorbing powder dust method is installed, comprised the following steps：
Step A installs dust exhaust apparatus：First support meanss are connected with positioning table, location-plate is placed on drilling wall side,
And the opening of the dust suction groove on positioning table is contacted with wall, then by the hinge bar I in journal stirrup and hinge assembly, locating piece and
Hinge bar II is articulated and connected successively, is subsequently connected screw rod with locating piece, the dust sucting pipeline and air suction opening for then inhaling dust suction
Connection；
Step B adjusts dust exhaust apparatus：According to required height, rotary screw makes locating piece away from each other or close；
Step C drilling dust suctions：Start dust catcher, then by the drill bit of boring bar tool from pilot hole is put into dust suction groove,
And contact drill bit with corresponding bore position, finally start boring bar tool and drilled.
The dust suction groove is arranged on the end face of positioning table, and the guide pad is arranged on the other end of positioning table,
And pilot hole is connected with dust suction groove, the air suction opening is arranged on positioning table on the side away from pilot hole, the air suction opening
One end connected with dust suction groove, the other end of air suction opening is connected with the sweep-up pipe of dust catcher, the support meanss and positioning table
Connection.Support meanss in above-mentioned can use the combination of hydraulic cylinder, pneumatic cylinder, expansion link or bar linkage structure.
In use, hand-held positioning table, by one end away from dust suction groove on air suction opening down, and makes the opening of dust suction groove
With wall parallel contact, the drill bit of boring bar tool is then passed through into pilot hole, then drilled.When so drilling the powder that produces with
The effect of gravity and dust catcher can drop into air suction opening, and be siphoned away by dust catcher.Pass through locating piece and dust catcher
Combination, by the powder produced during drill hole on wall suck dust catcher, not only avoid powder drop on the ground, the clothes of workman
On, it is thus also avoided that the air of installation personnel suction belts dust, protect the healthy of installation personnel.
Further, the combination of the preferred linkage of the support meanss.The support meanss include hinge assembly, screw rod and
Location-plate, the hinge assembly is mainly made up of hinge bar I, hinge bar II and locating piece；
Journal stirrup is provided with the side of positioning table, one end of the hinge bar I is hinged with journal stirrup, hinge bar I it is another
End is hinged with locating piece, and one end of the hinge bar II is hinged with locating piece, and the other end and the location-plate of hinge bar II are hinged, and
Diameter parallel of the above-mentioned axis being hinged with pilot hole；
The journal stirrup and hinge assembly have two, and line is symmetrically disposed in air suction opening centered on the axis of air suction opening
Both sides, one end of the screw rod is connected with a locating piece, another point of screw rod is connected with another locating piece, and screw rod
Two ends are oppositely oriented, and rotary screw can make locating piece close to each other or remote.
It is raised and lowered locating piece by rotary screw, to obtain required drilling dust suction position.When need rise
During the position of locating piece, rotary screw makes locating piece close to each other, to shorten the throwing of hinge bar I and hinge bar II in horizontal plane
Shadow；When needing to reduce the position of locating piece, rotary screw makes locating piece away from each other, to increase hinge bar I and hinge bar II
In the projection of horizontal plane.This adjustment mode is not only convenient for the position of user's centering drilling, can also be by reducing the spiral shell of screw rod
Away from more accurately being adjusted to obtain.
Further, it is provided with rotating handle at the two ends of screw rod.The setting of rotating handle makes rotary screw more laborsaving.
Further, also including connecting cylinder, the pilot hole is screwed hole, and one end of connecting cylinder is provided with external screw thread,
The connecting cylinder is connected through a screw thread the one end being fixed on away from dust suction groove on pilot hole.Connecting cylinder is played to boring bar tool and led
To effect, and the inner chamber of connecting cylinder can be arranged to according to the shape of boring bar tool by matching shape, be easy to connecting cylinder with
Boring bar tool is seamless to be coordinated；Different connecting cylinders can be also changed according to different boring bar tools simultaneously.
Further, handle is provided with the end face away from dust suction groove on positioning table, the handle is C font handles
Hand.
Further, the positioning table is cylinder, and is provided with the end face of positioning table sealing ring, the sealing
Circle fences up the opening of dust suction groove.The setting of sealing ring makes to increase positioning table and sealing between the walls.And
Sealing ring can also be replaced by Acetabula device, the Acetabula device preferred vacuum chuck.Simultaneously can be by locating piece and connecting cylinder
It is all provided with being set to transparent material, to increase the convenience of drill hole on wall.
The present invention compared with prior art, has the following advantages and advantages：
1st, the present invention installs distribution box adsorbing powder dust method, in use, hand-held positioning table, by remote dust suction on air suction opening
One end of groove down, and makes the opening and wall parallel contact of dust suction groove, then passes through the drill bit of boring bar tool and is oriented to
Hole, then drills.The powder produced when so drilling can drop into air suction opening with the effect of gravity and dust catcher, and by
Dust catcher is siphoned away.By the combination of locating piece and dust catcher, the powder produced during drill hole on wall is sucked into dust catcher, no
Only avoid powder to drop on the ground, on the clothes of workman, it is thus also avoided that the air of installation personnel suction belts dust, protect peace
Dress personnel's is healthy；
2nd, the present invention installs distribution box adsorbing powder dust method, is raised and lowered locating piece by rotary screw, with
Drilling dust suction position needed for obtaining.When needing to raise the position of locating piece, rotary screw makes locating piece close to each other, with
Shorten the projection of hinge bar I and hinge bar II in horizontal plane；When needing to reduce the position of locating piece, rotary screw makes positioning
Block away from each other, to increase the projection of hinge bar I and hinge bar II in horizontal plane；This adjustment mode is not only convenient for user and looked for
The position just drilled, also more can accurately be adjusted by reducing the pitch of screw rod to obtain；
3rd, the present invention installs distribution box adsorbing powder dust method, and connecting cylinder plays guide effect to boring bar tool, and can root
According to the shape of boring bar tool, the inner chamber of connecting cylinder is arranged to matching shape, is easy to connecting cylinder seamless with boring bar tool
Coordinate；Different connecting cylinders can be also changed according to different boring bar tools simultaneously.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is structural representation of the invention；
Fig. 2 is the structural representation of positioning table.
Mark and corresponding parts title in accompanying drawing：
1- positioning tables, 2- connecting cylinders, 3- dust suction grooves, 4- pilot holes, 5- air suction openings, 6- screw rods, 7- location-plates, 8- is hinged
Bar I, 9- hinge bars II, 10- locating pieces, 11- journal stirrups, 12- handles, 13- rotating handles.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment and its explanation of the invention is only used for explaining the present invention, does not make
For limitation of the invention.
Embodiment 1
As Figure 1-Figure 2, the present invention installs distribution box adsorbing powder dust method, and step A installs dust exhaust apparatus：First will branch
Support arrangement is connected with positioning table 1, and location-plate 7 is placed on drilling wall side, and the opening of the dust suction groove 3 on positioning table 1 with
Wall is contacted, and then the hinge bar I 8 in journal stirrup 11 and hinge assembly, locating piece 10 and hinge bar II 9 are articulated and connected successively,
Subsequently screw rod 6 is connected with locating piece 10, then connected the dust sucting pipeline that dust suction is inhaled with air suction opening 5；
Step B adjusts dust exhaust apparatus：According to required height, rotary screw 6 makes locating piece 10 away from each other or close；
Step C drilling dust suctions：Start dust catcher, the drill bit of boring bar tool is then put into dust suction groove 3 from pilot hole 4
In, and drill bit is contacted with corresponding bore position, finally start boring bar tool and drilled.
The dust suction groove 3 is arranged on the end face of positioning table 1, and the pilot hole 4 is arranged on the other end of positioning table 1
On, and pilot hole 4 connects with dust suction groove 3, suo9shu air suction openings 5 are arranged on positioning table 1 on the side away from pilot hole 4,
One end of the air suction opening 5 is connected with dust suction groove 3, and the other end of air suction opening 5 is connected with the sweep-up pipe of dust catcher, the support
Device is connected with positioning table 1.Support meanss in above-mentioned can be using hydraulic cylinder, pneumatic cylinder, expansion link or bar linkage structure
Combination.
The combination of the preferred linkage of support meanss.The support meanss include hinge assembly, screw rod 6 and location-plate 7,
The hinge assembly is mainly made up of hinge bar I 8, hinge bar II 9 and locating piece 10；
Journal stirrup 11 is provided with the side of positioning table 1, one end and the journal stirrup 11 of the hinge bar I 8 are hinged, hinge bar I 8
The other end be hinged with locating piece 10, one end and the locating piece 10 of the hinge bar II 9 are hinged, the other end of hinge bar II 9 with
Location-plate 7 is hinged, and diameter parallel of the above-mentioned axis being hinged with pilot hole 4；
The journal stirrup 11 and hinge assembly have two, and line is symmetrically disposed in suction centered on the axis of air suction opening 5
The both sides in dirt hole 5, one end of the screw rod 6 is connected with a locating piece 10, and another point and another locating piece 10 of screw rod 6 connect
Connect, and the two ends of screw rod 6 are oppositely oriented, rotary screw 6 can make locating piece 10 close to each other or remote.At the two ends of screw rod 6
It is provided with rotating handle 13.The setting of rotating handle 13 makes rotary screw 6 more laborsaving.
It is raised and lowered locating piece 1 by rotary screw 6, to obtain required drilling dust suction position.When need rise
During the position of high locating piece 1, rotary screw 6 makes locating piece 10 close to each other, to shorten hinge bar I 8 and hinge bar II 9 in water
The projection of plane；When needing to reduce the position of locating piece 1, rotary screw 6 makes locating piece 10 away from each other, is hinged with increasing
The projection of bar I 8 and hinge bar II 9 in horizontal plane.This adjustment mode is not only convenient for the position of user's centering drilling, can also lead to
The pitch of over-subtraction small screw 6 more accurately adjusts to obtain.
In use, hand-held positioning table 1, by one end away from dust suction groove 3 on air suction opening 5 down, and makes dust suction groove 3
Opening and wall parallel contact, then pass through pilot hole 4 by the drill bit of boring bar tool, then drill.Produced when so drilling
Powder can drop into air suction opening 5 with the effect of gravity and dust catcher, and be siphoned away by dust catcher.By locating piece 1 and
The combination of dust catcher, by the powder produced during drill hole on wall suck dust catcher, not only avoid powder drop on the ground, work
On the clothes of people, it is thus also avoided that the air of installation personnel suction belts dust, the healthy of installation personnel is protected.
Embodiment 2
The present embodiment is that on the basis of embodiment 1, the present invention is further illustrated.
As Figure 1-Figure 2, the present invention installs distribution box adsorbing powder dust method, also including connecting cylinder 2, the pilot hole
4 be screwed hole, and external screw thread is provided with one end of connecting cylinder 2, and the connecting cylinder 2, which is connected through a screw thread, to be fixed on pilot hole 4
One end away from dust suction groove 3.Connecting cylinder 2 plays guide effect to boring bar tool, and can be according to the shape of boring bar tool, will be even
The inner chamber for connecing cylinder 2 is arranged to matching shape, is easy to connecting cylinder 2 and the seamless cooperation of boring bar tool；Simultaneously can also be according to not
Same boring bar tool changes different connecting cylinders 2.
Further, handle 12 is provided with the end face away from dust suction groove 3 on positioning table 1, the handle 12 is C words
Shape handle.
Embodiment 3
The present embodiment is that on the basis of embodiment 1, the present invention is further illustrated.
As Figure 1-Figure 2, the present invention installs distribution box adsorbing powder dust method, and the positioning table 1 is cylinder, and
Sealing ring is provided with the end face of positioning table 1, the sealing ring fences up the opening of dust suction groove.The setting of sealing ring makes
In order to increase positioning table 1 and sealing between the walls.And sealing ring can also be replaced by Acetabula device, the sucker dress
Put preferred vacuum chuck.Locating piece 1 and connecting cylinder 2 can be all provided with being set to transparent material simultaneously, to increase the facility of drill hole on wall
Property.
Above-described embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modifications, equivalent substitutions and improvements done etc. all should be included
Within protection scope of the present invention.
Claims (6)
1. distribution box adsorbing powder dust method is installed, it is characterised in that：Comprise the following steps：
Step A installs dust exhaust apparatus：First support meanss are connected with positioning table (1), location-plate (7) is placed on drilling wall one
The opening of dust suction groove (3) on side, and positioning table (1) is contacted with wall, then by the hinge in journal stirrup (11) and hinge assembly
Extension bar I (8), locating piece (10) and hinge bar II (9) are articulated and connected successively, are subsequently connected screw rod (6) with locating piece (10),
Then the dust sucting pipeline that dust suction is inhaled is connected with air suction opening (5)；
Step B adjusts dust exhaust apparatus：According to required height, rotary screw (6) makes locating piece (10) away from each other or close；
Step C drilling dust suctions：Start dust catcher, the drill bit of boring bar tool is then put into dust suction groove (3) from pilot hole (4)
In, and drill bit is contacted with corresponding bore position, finally start boring bar tool and drilled.
2. installation distribution box adsorbing powder dust method according to claim 1, it is characterised in that：The dust suction groove (3)
Be arranged on the end face of positioning table (1), the pilot hole (4) is arranged on the other end of positioning table (1), and pilot hole (4) with
Dust suction groove (3) is connected, and the air suction opening (5) is arranged on positioning table (1) on the side away from pilot hole (4), the dust suction
The one end in hole (5) is connected with dust suction groove (3), and the other end of air suction opening (5) is connected with the sweep-up pipe of dust catcher, the support dress
Put and be connected with positioning table (1)；
The support meanss include hinge assembly, screw rod (6) and location-plate (7), the hinge assembly mainly by hinge bar I (8),
Hinge bar II (9) and locating piece (10) composition；
Journal stirrup (11) is provided with the side of positioning table (1), one end and the journal stirrup (11) of the hinge bar I (8) are hinged, be hinged
The other end of bar I (8) is hinged with locating piece (10), and one end and the locating piece (10) of the hinge bar II (9) are hinged, hinge bar II
(9) the other end is hinged with location-plate (7), and diameter parallel of the above-mentioned axis being hinged with pilot hole (4)；
The journal stirrup (11) and hinge assembly have two, and line is symmetrically disposed in suction centered on the axis of air suction opening (5)
The both sides in dirt hole (5), one end of the screw rod (6) is connected with a locating piece (10), and another point of screw rod (6) is determined with another
Position block (10) connection, and the two ends of screw rod (6) are oppositely oriented, rotary screw (6) can make locating piece (10) close to each other or remote
From.
3. installation distribution box adsorbing powder dust method according to claim 2, it is characterised in that：Two ends in screw rod (6)
It is provided with rotating handle (13).
4. installation distribution box adsorbing powder dust method according to claim 2, it is characterised in that：Also include connecting cylinder (2),
The pilot hole (4) is screwed hole, external screw thread is provided with one end of connecting cylinder (2), the connecting cylinder (2) is connected through a screw thread
It is fixed on one end away from dust suction groove (3) on pilot hole (4).
5. installation distribution box adsorbing powder dust method according to claim 2, it is characterised in that：It is remote on positioning table (1)
Handle (12) is provided with end face from dust suction groove (3), the handle (12) is C font handles.
6. the installation distribution box adsorbing powder dust method according to any one of claim 2-5, it is characterised in that：It is described fixed
Position platform (1) is cylinder, and is provided with the end face of positioning table (1) sealing ring, and the sealing ring is opened dust suction groove
Mouth fences up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710172552.4A CN106945184A (en) | 2017-03-21 | 2017-03-21 | Distribution box adsorbing powder dust method is installed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710172552.4A CN106945184A (en) | 2017-03-21 | 2017-03-21 | Distribution box adsorbing powder dust method is installed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106945184A true CN106945184A (en) | 2017-07-14 |
Family
ID=59473006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710172552.4A Pending CN106945184A (en) | 2017-03-21 | 2017-03-21 | Distribution box adsorbing powder dust method is installed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106945184A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113756797A (en) * | 2021-09-23 | 2021-12-07 | 云南滇东雨汪能源有限公司 | Rock wall drilling machine for coal mining |
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|---|---|---|---|---|
| DE29609060U1 (en) * | 1996-05-20 | 1996-08-14 | Walter Robert | Suction cup for dust-free drilling |
| CN1348855A (en) * | 2001-10-26 | 2002-05-15 | 海尔集团公司 | Hole-drilling dust collector for air conditioner installation |
| CN202441289U (en) * | 2012-01-19 | 2012-09-19 | 中国通信建设第四工程局有限公司 | Wall boring dust absorption disc |
| CN103128861A (en) * | 2013-03-04 | 2013-06-05 | 郑运婷 | Dust absorption churn drill |
| CN204075012U (en) * | 2014-10-12 | 2015-01-07 | 张秋臣 | Architectural engineering double leval jib locking type manual steel bar bender |
| CN204171397U (en) * | 2014-09-28 | 2015-02-25 | 宁波耀升工具实业有限公司 | A kind of electric drill |
| CN204171066U (en) * | 2014-09-02 | 2015-02-25 | 徐高启 | A kind of water drilling boring sewage collection equipment |
| CN204622346U (en) * | 2015-05-19 | 2015-09-09 | 上海天合智能科技股份有限公司 | A kind of dust-free drilling machine connector |
| CN105127829A (en) * | 2015-09-02 | 2015-12-09 | 哈尔滨飞机工业集团有限责任公司 | Quick collector for borings |
| CN205448971U (en) * | 2016-03-15 | 2016-08-10 | 中天昱品科技有限公司 | Prefabricated excellent detection device |
-
2017
- 2017-03-21 CN CN201710172552.4A patent/CN106945184A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29609060U1 (en) * | 1996-05-20 | 1996-08-14 | Walter Robert | Suction cup for dust-free drilling |
| CN1348855A (en) * | 2001-10-26 | 2002-05-15 | 海尔集团公司 | Hole-drilling dust collector for air conditioner installation |
| CN202441289U (en) * | 2012-01-19 | 2012-09-19 | 中国通信建设第四工程局有限公司 | Wall boring dust absorption disc |
| CN103128861A (en) * | 2013-03-04 | 2013-06-05 | 郑运婷 | Dust absorption churn drill |
| CN204171066U (en) * | 2014-09-02 | 2015-02-25 | 徐高启 | A kind of water drilling boring sewage collection equipment |
| CN204171397U (en) * | 2014-09-28 | 2015-02-25 | 宁波耀升工具实业有限公司 | A kind of electric drill |
| CN204075012U (en) * | 2014-10-12 | 2015-01-07 | 张秋臣 | Architectural engineering double leval jib locking type manual steel bar bender |
| CN204622346U (en) * | 2015-05-19 | 2015-09-09 | 上海天合智能科技股份有限公司 | A kind of dust-free drilling machine connector |
| CN105127829A (en) * | 2015-09-02 | 2015-12-09 | 哈尔滨飞机工业集团有限责任公司 | Quick collector for borings |
| CN205448971U (en) * | 2016-03-15 | 2016-08-10 | 中天昱品科技有限公司 | Prefabricated excellent detection device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113756797A (en) * | 2021-09-23 | 2021-12-07 | 云南滇东雨汪能源有限公司 | Rock wall drilling machine for coal mining |
| CN113756797B (en) * | 2021-09-23 | 2024-02-02 | 云南滇东雨汪能源有限公司 | Rock wall drilling machine for coal mine exploitation |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170714 |
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| RJ01 | Rejection of invention patent application after publication |