CN108838949A - A kind of electric hammer punching elevator - Google Patents
A kind of electric hammer punching elevator Download PDFInfo
- Publication number
- CN108838949A CN108838949A CN201810750552.2A CN201810750552A CN108838949A CN 108838949 A CN108838949 A CN 108838949A CN 201810750552 A CN201810750552 A CN 201810750552A CN 108838949 A CN108838949 A CN 108838949A
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- Prior art keywords
- vertical bar
- electric hammer
- arguing
- sake
- bar
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/28—Supports; Devices for holding power-driven percussive tools in working position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/28—Supports; Devices for holding power-driven percussive tools in working position
- B25D17/30—Pillars and struts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rehabilitation Tools (AREA)
Abstract
The invention discloses a kind of electric hammer punching elevators, including planar linkage mechanism, have lower vertical bar arranged in parallel, upper vertical bar, be provided simultaneously with it is arranged in parallel argue for the sake of arguing, connecting rod, upper vertical bar, lower vertical bar, is argued for the sake of arguing successively hingedly at connecting rod, parallelogram mechanism is surrounded, upper vertical bar, lower vertical bar, arguing for the sake of arguing is provided with one section of adjutage far from parallelogram mechanism, and the end for the adjutage argued for the sake of arguing has handle；Electric hammer fixed mechanism, the adjutage of upper vertical bar is located at the top of upper vertical bar, and connect with electric hammer fixed mechanism, and electric hammer fixed mechanism controls the power on/off of electric hammer for fixing electric hammer, handle；The adjutage of pedestal, lower vertical bar is located at the bottom end of lower vertical bar, and connect with pedestal, pedestal and ground face contact.Existing common electric hammer is utilized using the invention, collocation elevating mechanism can realize roof aperture, the efficiency of top drilling is improved by four-bar mechanism, reduce personnel labor intensity.
Description
Technical field
The present invention relates to the auxiliary tool fields of electric tool, and in particular to a kind of electric hammer punching elevator.
Background technique
Electric hammer is for the aperture on building, and general electric hammer is used to also need aperture on vertical wall sometimes
Aperture is carried out to horizontal roof, but since roof height is higher, angle is also not easy to personnel's force, so to roof
Aperture operating efficiency is low, it is difficult to carry out.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of electric hammer punching elevator, utilizes existing common electric hammer, arrange in pairs or groups
Elevating mechanism can realize roof aperture, and the efficiency of top drilling is improved by four-bar mechanism, reduce personnel labor intensity.
To solve the above problems, the present invention provides a kind of electric hammer punching elevator, in order to achieve the above objectives, the present invention is solved
Technical solution used by its technical problem is：
A kind of electric hammer punching elevator, including：Planar linkage mechanism has lower vertical bar arranged in parallel, upper vertical bar,
Be provided simultaneously with it is arranged in parallel argue for the sake of arguing, connecting rod, upper vertical bar, lower vertical bar, is argued for the sake of arguing successively hinged at connecting rod, is surrounded parallel
Quadrangular mechanism, upper vertical bar, lower vertical bar, arguing for the sake of arguing is provided with one section of adjutage far from parallelogram mechanism, the extension argued for the sake of arguing
The end of arm has handle；Electric hammer fixed mechanism, the adjutage of upper vertical bar are located at the top of upper vertical bar, and with electric hammer fixed mechanism
Connection, electric hammer fixed mechanism control the power on/off of electric hammer for fixing electric hammer, handle；Pedestal, under the adjutage of lower vertical bar is located at
The bottom end of vertical bar, and connect with pedestal, pedestal and ground face contact.
Beneficial effect by adopting the above technical scheme is：Using existing common electric hammer, arranging in pairs or groups elevating mechanism can be real
Existing roof aperture, improves the efficiency of top drilling, reduces personnel labor intensity.Personnel push and argue for the sake of arguing, and electric hammer is transported straight up
It is dynamic, aperture is carried out to roof, handle, which is located at, argues for the sake of arguing one section, and the working condition of the electric hammer of distant place is operated convenient for personnel.Using parallel
Quadrangular mechanism has opposite side feature parallel always using parallelogram, so that upper vertical bar is erected always during the motion
Directly upward, forms of motion needed for meeting electric hammer aperture.
As a further improvement of the present invention, upper vertical bar, connecting rod, lower vertical bar, the hinged place argued for the sake of arguing are to be installed with pin shaft
Adjustment hole, upper vertical bar, lower vertical bar are equidistantly arranged with several adjustment holes along length direction.
Beneficial effect by adopting the above technical scheme is：The fit system of pin shaft and adjustment hole is simple and reliable, easy to adjust,
Not only it can play the role of adjusting the length of connecting rod, but also not influence the rotational freedom between connecting rod.
As a further improvement of the present invention, upper vertical bar is made of inner sleeve, the outer tube being mutually socketed, inner sleeve phase
Have vertical translation freedoms to outer tube, is provided with adjustment hole on inner sleeve, outer tube.
Beneficial effect by adopting the above technical scheme is：Different adjustment holes can be passed through by pin shaft to adjust upper vertical bar
Length, classification adjusting can be carried out, to adapt to the roof of different height.
As further improvement of the invention, electric hammer fixed mechanism has horizontal lower pallet and vertical with lower pallet
The edge-on bar of connection is connected with clip on edge-on bar.
Beneficial effect by adopting the above technical scheme is：Lower pallet support electric hammer, bears the gravity of electric hammer, clip and electric hammer
Head periphery fix, guarantee stability of the electric hammer in aperture operation.
As further improvement of the invention, clip and edge-on bar are clamped, and clip has the vertical translation along edge-on bar
Freedom degree.
Beneficial effect by adopting the above technical scheme is：Clip is tightly connected with edge-on bar cramp, is adapted to adjust and be fixed not
With the electric hammer of size shape.
As further improvement of the invention, handle controls the revolving speed of electric hammer.
Beneficial effect by adopting the above technical scheme is：Handle controls the revolving speed of electric hammer, holds aperture effect convenient for personnel.
As further improvement of the invention, live wire, upper vertical bar, the hinged place argued for the sake of arguing are connected between handle and electric hammer
It is connected with idler wheel, electric wire passes through and is wrapped on the periphery of idler wheel, and electric wire and idler wheel have tangential direction at two, along idler wheel
Same axial visual angle, at two tangential direction be it is same clockwise or counterclockwise, idler wheel has the elastic potential of one-directional rotation
Energy.
Beneficial effect by adopting the above technical scheme is：Idler wheel has the rotational freedom towards a clockwise.It is right
Electric wire carries out tensioning function, in the telescopic with upper vertical bar or during move up and down, not only can guarantee the extension of electric wire, but also
The contraction that can guarantee electric wire prevents electric wire slack and undisciplined again in contraction process.
As further improvement of the invention, the lower surface of pedestal has the universal wheel with service brake.
Beneficial effect by adopting the above technical scheme is：Universal wheel pushes elevator mobile convenient for personnel, adjusts aperture position
When setting, while carrying out aperture to a certain determining position, universal wheel can be fixed by service brake, will not arbitrarily be moved, be guaranteed aperture
Precision.
As further improvement of the invention, lower vertical bar is connect with pedestal by adjustment seat, between adjustment seat and pedestal
It is connected by horizontal screw rod, one end of screw rod has rocking handle, rocking handle rotation, and adjustment seat has the horizontal translation of opposite pedestal certainly
By spending.
Beneficial effect by adopting the above technical scheme is：Determination for top drilling position is first moved using universal wheel
It is finely adjusted to approximate location, then by rocking handle screw rod, improves the precision of position of opening.
As further improvement of the invention, upper vertical bar, connecting rod, lower vertical bar, arguing for the sake of arguing is made of square steel, lower vertical bar
Lower end has cylindrical shaft, has the blind hole with cylindrical shaft cooperation in adjustment seat, and lower vertical bar has the rotation freedom around own axes
Degree.
Beneficial effect by adopting the above technical scheme is：Four-bar mechanism made of square steel, structural strength is good, the electric hammer at top
It is not easy to shake in operation, is not easy mutually to rotate between square steel, is also convenient for adjustment hole and pin shaft alignement, because what electric hammer was overlapped
Vertical line mutual dislocation where vertical line and lower vertical bar, the rotational freedom of lower vertical bar in conjunction with the translation freedoms of screw rod, into
The one-step optimization position of opening fine adjustment function of electric hammer.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the main view of one embodiment of the present invention；
Fig. 2 is the fragmentary view of one embodiment of the present invention；
Fig. 3 is the fragmentary view of another embodiment of the present invention；
Fig. 4 is partial enlarged view at the A of one embodiment of the present invention；
Fig. 5 is the top view of one embodiment of the present invention；
Fig. 6 is the fragmentary view of another embodiment of the present invention.
1- pedestal；2- argues for the sake of arguing；2a- first segment；2b- second segment；3- connecting rod；4- upper vertical bar；4a- outer tube；4b- inner sleeve
Pipe；5- pin shaft；6- adjustment hole；7- lower vertical bar；8- handle；9- electric hammer；10- universal wheel；11- idler wheel；12- electric wire；13- subiculum
Plate；The edge-on bar of 14-；15- clip；16- angle switch；17- headlamp；18- adjustment seat；19- rocking handle；20- screw rod.
Specific embodiment
Combined with specific embodiments below, the contents of the present invention are described in further detail：
In order to reach the purpose of the present invention, a kind of electric hammer punching elevator, including：Planar linkage mechanism has mutually flat
Lower vertical bar 7, the upper vertical bar 4 of row setting, are provided simultaneously with 2, connecting rod 3 of arguing for the sake of arguing arranged in parallel, upper vertical bar 4, connecting rod 3,
Lower vertical bar 7 is argued for the sake of arguing 2 successively hinged, surrounds parallelogram mechanism, and upper vertical bar 4, lower vertical bar 7, arguing for the sake of arguing 2 is provided with far from parallel
One section of adjutage of quadrangular mechanism, 2 end of adjutage of arguing for the sake of arguing have handle 8；Electric hammer fixed mechanism, upper vertical bar 4 are prolonged
Semi-girder is located at the top of upper vertical bar 4, and connect with electric hammer fixed mechanism, and electric hammer fixed mechanism is controlled for fixing electric hammer 9, handle 8
The power on/off of electric hammer 9 processed；Pedestal 1, the adjutage of lower vertical bar 7 is located at the bottom end of lower vertical bar 7, and connect with pedestal 1, pedestal 1 with
Ground face contact.
As shown in figure 5, pedestal 1 is in cross on vertical visual angle.As shown in fig. 6, argue for the sake of arguing 2 with lower vertical bar 7 be hinged place will
It argues for the sake of arguing and 2 is divided into first segment 2a, second segment 2b, one section close to handle 8 is first segment 2a, and the length of first segment 2a is greater than second
The length of section 2b, the length of first segment 2a are at least twice of second segment 2b length.So that personnel can use under lesser power
Handle hand 8, arguing for the sake of arguing 2 is laborsaving lever.
Beneficial effect by adopting the above technical scheme is：Using existing common electric hammer, arranging in pairs or groups elevating mechanism can be real
Existing roof aperture, improves the efficiency of top drilling, reduces personnel labor intensity.Personnel push and argue for the sake of arguing, and electric hammer is transported straight up
It is dynamic, aperture is carried out to roof, handle, which is located at, argues for the sake of arguing one section, and the working condition of the electric hammer of distant place is operated convenient for personnel.Using parallel
Quadrangular mechanism has opposite side feature parallel always using parallelogram, so that upper vertical bar is erected always during the motion
Directly upward, forms of motion needed for meeting electric hammer aperture.
In other embodiments of the invention, upper vertical bar 4, connecting rod 3, lower vertical bar 7, argue for the sake of arguing 2 hinged place be wear
There is the adjustment hole 6 of pin shaft 5, upper vertical bar 4, lower vertical bar 7 are equidistantly arranged with several adjustment holes 6 along length direction.
Beneficial effect by adopting the above technical scheme is：The fit system of pin shaft and adjustment hole is simple and reliable, easy to adjust,
Not only it can play the role of adjusting the length of connecting rod, but also not influence the rotational freedom between connecting rod.
In other embodiments of the invention, upper vertical bar 4 is made of inner sleeve 4b, the outer tube 4a being mutually socketed,
Inner sleeve 4b has vertical translation freedoms with respect to outer tube 4a, is provided with adjustment hole 6 on inner sleeve 4b, outer tube 4a.
Beneficial effect by adopting the above technical scheme is：Different adjustment holes can be passed through by pin shaft to adjust upper vertical bar
Length, classification adjusting can be carried out, to adapt to the roof of different height.
In other embodiments of the invention, as shown in figure 4, electric hammer fixed mechanism have horizontal lower pallet 13 with
And with the edge-on bar 14 connected vertically of lower pallet 13, be connected with clip 15 on edge-on bar 14.
Beneficial effect by adopting the above technical scheme is：Lower pallet support electric hammer, bears the gravity of electric hammer, clip and electric hammer
Head periphery fix, guarantee stability of the electric hammer in aperture operation.
In other embodiments of the invention, as shown in figure 4, clip 15 and edge-on bar 14 are clamped, clip 15 has
Along the vertical translation freedom degree of edge-on bar 14.
Edge-on bar 14 is connected with a headlamp 17 in parallel in Fig. 3, and headlamp 17 vertically irradiates upward.
Beneficial effect by adopting the above technical scheme is：Clip is tightly connected with edge-on bar cramp, is adapted to adjust and be fixed not
With the electric hammer of size shape.
In other embodiments of the invention, handle 8 controls the revolving speed of electric hammer 9.
Beneficial effect by adopting the above technical scheme is：Handle controls the revolving speed of electric hammer, holds aperture effect convenient for personnel.
In other embodiments of the invention, as shown in figure 3, live wire 12 is connected between handle 8 and electric hammer 9, on
Vertical bar 4,2 hinged place of arguing for the sake of arguing are connected with idler wheel 11, and electric wire 12, which passes through, to be simultaneously wrapped on the periphery of idler wheel 11, electric wire 12 and rolling
Wheel 11 has tangential direction at two, and along the same axial visual angle of idler wheel 11, tangential direction is the same clockwise or inverse time at two
Needle direction, idler wheel 11 have the elastic potential energy of one-directional rotation.
As shown in figure 3, idler wheel 11 has anticlockwise rotation elastic potential energy, idler wheel 11 is connected with torsional spring.
Beneficial effect by adopting the above technical scheme is：Idler wheel has the rotational freedom towards a clockwise.It is right
Electric wire carries out tensioning function, in the telescopic with upper vertical bar or during move up and down, not only can guarantee the extension of electric wire, but also
The contraction that can guarantee electric wire prevents electric wire slack and undisciplined again in contraction process.
In other embodiments of the invention, as shown in figure 3, the lower surface of pedestal 1 has the universal wheel with service brake
10。
Beneficial effect by adopting the above technical scheme is：Universal wheel pushes elevator mobile convenient for personnel, adjusts aperture position
When setting, while carrying out aperture to a certain determining position, universal wheel can be fixed by service brake, will not arbitrarily be moved, be guaranteed aperture
Precision.
In other embodiments of the invention, as shown in fig. 6, lower vertical bar 7 is connect with pedestal 1 by adjustment seat 18,
It is connected between adjustment seat 18 and pedestal 1 by horizontal screw rod 20, one end of screw rod 20 has rocking handle 19, and rocking handle 19 rotates, and adjusts
Section seat 18 has the horizontal translation freedom degree of opposite pedestal 1.
Adjustment seat 18, pedestal 1 are provided with vertical gusset, have the internal thread hole cooperated with screw rod 20 on gusset.
Beneficial effect by adopting the above technical scheme is：Determination for top drilling position is first moved using universal wheel
It is finely adjusted to approximate location, then by rocking handle screw rod, improves the precision of position of opening.
In other embodiments of the invention, upper vertical bar 4, connecting rod 3, lower vertical bar 7, argue for the sake of arguing 2 is made of square steel, under
The lower end of vertical bar 7 has cylindrical shaft, has the blind hole with cylindrical shaft cooperation in adjustment seat 18, and lower vertical bar 7 has around own axes
Rotary freedom.Cylindrical shaft and blind hole clearance fit.
As shown in figure 3, argue for the sake of arguing 2 with the hinged place of upper vertical bar 4 be equipped with angle switch 16, affiliated angle switch and handle 8 or
Electric wire 12 is connected, and the power on/off of electric hammer 9, when arguing for the sake of arguing the angle between 2 and upper vertical bar 4 between 80 ° to 100 °, angle are controlled
Switch 16 is in access, and otherwise angle switch 16 is in open circuit.
Beneficial effect by adopting the above technical scheme is：Four-bar mechanism made of square steel, structural strength is good, the electric hammer at top
It is not easy to shake in operation, is not easy mutually to rotate between square steel, is also convenient for adjustment hole and pin shaft alignement, because what electric hammer was overlapped
Vertical line mutual dislocation where vertical line and lower vertical bar, the rotational freedom of lower vertical bar in conjunction with the translation freedoms of screw rod, into
The one-step optimization position of opening fine adjustment function of electric hammer.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand the contents of the present invention and be implemented, and it is not intended to limit the scope of the present invention, it is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the scope of protection of the present invention.
Claims (10)
1. a kind of electric hammer punching elevator, which is characterized in that including：
Planar linkage mechanism has lower vertical bar arranged in parallel, upper vertical bar, be provided simultaneously with it is arranged in parallel argue for the sake of arguing,
Connecting rod, the upper vertical bar, lower vertical bar, are argued for the sake of arguing successively hinged at connecting rod, surround parallelogram mechanism, the upper vertical bar, under
Vertical bar, arguing for the sake of arguing is provided with one section of adjutage far from parallelogram mechanism, and the end of the adjutage argued for the sake of arguing has handle；
Electric hammer fixed mechanism, the adjutage of the upper vertical bar is located at the top of upper vertical bar, and connect with electric hammer fixed mechanism, described
Electric hammer fixed mechanism is for fixing electric hammer, the power on/off of the handle control electric hammer；
The adjutage of pedestal, the lower vertical bar is located at the bottom end of lower vertical bar, and connect with pedestal, the pedestal and ground face contact.
2. a kind of electric hammer punching elevator according to claim 1, it is characterised in that：It is the upper vertical bar, connecting rod, lower perpendicular
Bar, the hinged place argued for the sake of arguing are the adjustment hole for being installed with pin shaft, and the upper vertical bar, lower vertical bar are equidistantly arranged with along length direction
Several adjustment holes.
3. a kind of electric hammer punching elevator according to claim 2, it is characterised in that：The upper vertical bar is by being mutually socketed
Inner sleeve, outer tube are constituted, and the inner sleeve has vertical translation freedoms, the inner sleeve, outer tube with respect to outer tube
On be provided with adjustment hole.
4. a kind of electric hammer punching elevator according to claim 1, it is characterised in that：The electric hammer fixed mechanism has water
Flat lower pallet and with lower pallet edge-on bar connected vertically, be connected with clip on the edge-on bar.
5. a kind of electric hammer punching elevator according to claim 4, it is characterised in that：The clip and edge-on bar are clamped,
The clip has the vertical translation freedom degree along edge-on bar.
6. a kind of electric hammer punching elevator according to claim 1, it is characterised in that：The handle control electric hammer turns
Speed.
7. a kind of electric hammer punching elevator according to claim 6, it is characterised in that：It is connected between the handle and electric hammer
Live wire, the upper vertical bar, the hinged place argued for the sake of arguing are connected with idler wheel, and the electric wire passes through and is wrapped on the periphery of idler wheel,
The electric wire and idler wheel have tangential direction at two, and along the same axial visual angle of idler wheel, tangential direction is same up time at two
Needle or counter clockwise direction, the idler wheel have the elastic potential energy of one-directional rotation.
8. a kind of electric hammer punching elevator according to claim 1, it is characterised in that：The lower surface of the pedestal has band
The universal wheel of service brake.
9. a kind of electric hammer punching elevator according to claim 8, it is characterised in that：The lower vertical bar and pedestal pass through tune
Seat connection is saved, is connected between the adjustment seat and pedestal by horizontal screw rod, one end of the screw rod has rocking handle, described to shake
Handle rotation, adjustment seat have the horizontal translation freedom degree of opposite pedestal.
10. a kind of electric hammer punching elevator according to claim 9, it is characterised in that：The upper vertical bar, connecting rod, under
Vertical bar, arguing for the sake of arguing is made of square steel, and the lower end of the lower vertical bar has cylindrical shaft, has in the adjustment seat and cylindrical shaft cooperation
Blind hole, the lower vertical bar have the rotary freedom around own axes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810750552.2A CN108838949A (en) | 2018-07-09 | 2018-07-09 | A kind of electric hammer punching elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810750552.2A CN108838949A (en) | 2018-07-09 | 2018-07-09 | A kind of electric hammer punching elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108838949A true CN108838949A (en) | 2018-11-20 |
Family
ID=64196582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810750552.2A Pending CN108838949A (en) | 2018-07-09 | 2018-07-09 | A kind of electric hammer punching elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108838949A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202510039U (en) * | 2012-03-30 | 2012-10-31 | 赵志国 | Electric hammer bracket for skyward punching |
| CN104942764A (en) * | 2015-07-10 | 2015-09-30 | 中铁建工集团有限公司 | High-position handling frame for churn drill |
| CN204905469U (en) * | 2015-07-07 | 2015-12-23 | 国家电网公司 | Distribution lines overhauls protective earthing device |
| CN106863226A (en) * | 2017-04-14 | 2017-06-20 | 滨州医学院 | A kind of Mobile vertical rig |
| CN107598857A (en) * | 2017-10-19 | 2018-01-19 | 曾时 | The electric hammer fixing means for being easy to concrete to punch |
| CN107650082A (en) * | 2017-09-20 | 2018-02-02 | 苏州水木清华设计营造有限公司 | A kind of electric hammer construction bracket |
-
2018
- 2018-07-09 CN CN201810750552.2A patent/CN108838949A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202510039U (en) * | 2012-03-30 | 2012-10-31 | 赵志国 | Electric hammer bracket for skyward punching |
| CN204905469U (en) * | 2015-07-07 | 2015-12-23 | 国家电网公司 | Distribution lines overhauls protective earthing device |
| CN104942764A (en) * | 2015-07-10 | 2015-09-30 | 中铁建工集团有限公司 | High-position handling frame for churn drill |
| CN106863226A (en) * | 2017-04-14 | 2017-06-20 | 滨州医学院 | A kind of Mobile vertical rig |
| CN107650082A (en) * | 2017-09-20 | 2018-02-02 | 苏州水木清华设计营造有限公司 | A kind of electric hammer construction bracket |
| CN107598857A (en) * | 2017-10-19 | 2018-01-19 | 曾时 | The electric hammer fixing means for being easy to concrete to punch |
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Application publication date: 20181120 |