CN104510164A - Tool trolley - Google Patents

Tool trolley Download PDF

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Publication number
CN104510164A
CN104510164A CN201310452775.8A CN201310452775A CN104510164A CN 104510164 A CN104510164 A CN 104510164A CN 201310452775 A CN201310452775 A CN 201310452775A CN 104510164 A CN104510164 A CN 104510164A
Authority
CN
China
Prior art keywords
casing
gripper shoe
tool car
plate
vehicle body
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.)
Granted
Application number
CN201310452775.8A
Other languages
Chinese (zh)
Other versions
CN104510164B (en
Inventor
韩伟光
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daxing County Power Supply Installation Co
State Grid Corp of China SGCC
State Grid Beijing Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Beijing Electric Power Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, State Grid Beijing Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201310452775.8A priority Critical patent/CN104510164B/en
Publication of CN104510164A publication Critical patent/CN104510164A/en
Application granted granted Critical
Publication of CN104510164B publication Critical patent/CN104510164B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B21/00Tables or desks for office equipment, e.g. typewriters, keyboards
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B21/00Tables or desks for office equipment, e.g. typewriters, keyboards
    • A47B21/03Tables or desks for office equipment, e.g. typewriters, keyboards with substantially horizontally extensible or adjustable parts other than drawers, e.g. leaves
    • A47B21/0314Platforms for supporting office equipment
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B31/00Service or tea tables, trolleys, or wagons

Landscapes

  • Road Signs Or Road Markings (AREA)
  • Handcart (AREA)

Abstract

The invention provides a tool trolley; the tool trolley comprises a trolley body, a first shelving plate, and walking wheels; the trolley body comprises a containing space; the first shelving plate is installed on the trolley body; the first shelving plat is has a working status of supporting tools or equipment placed on the first shelving plate and/or a folded status of being detachable and/or foldable with respect to the trolley body; the walking wheels are arranged at the bottom of the trolley body. By applying the provided technical scheme, the tool trolley achieves a function of carrying more tools and equipment.

Description

Tool car
Technical field
The present invention relates to maintenance conditions field of tool, more specifically, relate to a kind of tool car.
Background technology
In daily information operation maintenance work, due to the instrument that relates to and equipment more and cause and carry inconvenience, easily cause the instrument shortage in work, impact to work.
Summary of the invention
The present invention aims to provide a kind of tool car carrying multiple types of tools and equipment.
To achieve these goals, the invention provides a kind of base, tool car comprises: vehicle body, and vehicle body comprises spatial accommodation; First places plate, is arranged on vehicle body, and first places plate has the duty that supports the instrument that is placed on the first placement plate and/or equipment and the detachable and/or folding collapsed state relative to vehicle body; Road wheel, road wheel is arranged at the bottom of vehicle body.
Further, vehicle body comprises the first casing, and spatial accommodation comprises the first spatial accommodation, and the first spatial accommodation is positioned at the first box house, and the first placement plate comprises the first upper cover plate of the first casing.
Further, tool car also comprises the second placement plate, and second places plate is arranged on vehicle body.
Further, vehicle body also comprises the second casing, and spatial accommodation also comprises the second spatial accommodation, and the second spatial accommodation is positioned at the second box house, and the second placement plate comprises the second upper cover plate of the second casing.
Further, the first casing and the second casing are arranged abreast along the direction of motion of road wheel, and wherein, the bottom surface of the first casing is concordant from the bottom surface of the second casing and the height of the first casing and the second casing is different.
Further, first places plate also comprises at least one flat plate, flat board is arranged collapsibly relative to the first upper cover plate of the first casing, in working order, the upper plane of dull and stereotyped upper plane and the first upper cover plate of the first casing forms holding plane jointly, in collapsed state, platen parallel is in the side of the first casing.
Further, the first casing is also included in the supporting mechanism for support plate under duty.
Further, supporting mechanism comprises the first gripper shoe, first gripper shoe is connected with the side of the first casing and rotatably arranges relative to first rotating shaft of side around vertical direction, first gripper shoe comprises the first straight flange perpendicular to the first rotating shaft, in working order, first straight flange abuts with dull and stereotyped lower plane, and in collapsed state, the first gripper shoe is parallel to the side of the first casing.
Further, supporting mechanism also comprises the second gripper shoe, second gripper shoe is connected with the first gripper shoe and arranges rotationally around the first straight flange relative to the first gripper shoe, in working order, second gripper shoe abuts with dull and stereotyped lower plane, in collapsed state, the second gripper shoe is parallel to the side of the first casing.
Further, dull and stereotyped one end is connected with the first casing and rotatably arranges relative to the edge of the first upper cover plate of the first casing, supporting mechanism comprises the 3rd gripper shoe, 3rd gripper shoe is connected with flat board and arranges rotationally around the second rotating shaft perpendicular to edge relative to flat board, 3rd gripper shoe comprises the second straight flange perpendicular to the second rotating shaft, in working order, second straight flange of the 3rd gripper shoe abuts with the side of the first casing, in collapsed state, the 3rd gripper shoe is parallel to the side of the first casing.
Further, supporting mechanism also comprises the 4th gripper shoe, 4th gripper shoe is connected with the 3rd gripper shoe and can arranges rotationally relative to second straight flange of the 3rd gripper shoe around the 3rd gripper shoe, in working order, 4th gripper shoe abuts with the side of the first casing, in collapsed state, the 4th gripper shoe is parallel to the side of the first casing.
Apply technical scheme of the present invention, tool car comprises the placement plate placing computer display, keyboard and mouse and the container cavity placing uninterrupted power source, common tool and main frame.Apply technical scheme of the present invention, tool car achieves the function of carrying more instrument and equipment.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the structural representation seen from the top down of the tool car of the first embodiment of the present invention;
Fig. 2 shows first of the tool car of the first embodiment of the present invention and places the structural representation that plate is in collapsed state;
Fig. 3 shows the side-looking structural representation of the tool car of the first embodiment of the present invention;
Fig. 4 shows the main TV structure schematic diagram of the tool car of the second embodiment of the present invention.
Reference numeral: 10, vehicle body; 11, the first casing; 12, the second casing; 111, the first gripper shoe; 112, the second gripper shoe; 113, the 3rd gripper shoe; 114, the 4th gripper shoe; 20, first plate is placed; 21, the first upper cover plate; 22, dull and stereotyped; 30, road wheel; 40, second plate is placed.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
First embodiment
As shown in Figures 1 to 3, the tool car of embodiments of the invention comprises vehicle body 10, first placement plate 20 and road wheel 30.Vehicle body 10 comprises spatial accommodation.First places plate 20 is arranged on vehicle body.First place plate 20 have support at least one instrument duty and relative to vehicle body detachable and/or folding collapsed state.Road wheel 30 is arranged at the bottom of vehicle body 10.
The tool car of the present embodiment is used for often using instrument and the equipment such as computer, uninterrupted power source in carry information operation maintenance process.First places plate 20 for placing the keyboard of computer and mouse etc.Use required plurality of devices and common tool in tool car carry information operating maintenance process, decreasing the time wasted because lacking instrument or equipment, effectively improve the efficiency of work.
Vehicle body 10 comprises the first casing 11, and spatial accommodation comprises the first spatial accommodation, and it is inner that the first spatial accommodation is positioned at the first casing 11, and the first placement plate 20 comprises the first upper cover plate 21 of the first casing 11.Utilize the first spatial accommodation of the first casing 11 to hold main frame or uninterrupted power source or other common tool, abundant utilize space, reduce the volume of tool car, thus improve the flexibility of tool car.
In the present embodiment, tool car also comprises the second placement plate 40, second placement plate 40 and is arranged on vehicle body 10.Vehicle body 10 also comprises the second casing 12, and spatial accommodation also comprises the second spatial accommodation, and it is inner that the second spatial accommodation is positioned at the second casing 12, and the second placement plate 40 comprises the second upper cover plate of the second casing 12.
In the present embodiment, second places plate 40 for placing the display of computer.Preferably, the second placement plate 40 only comprises the second spatial accommodation of the second casing 12.Because the area that display takies is less, so utilize the second upper cover plate of the second casing 12 to place display, the mechanism of tool car can be simplified, make full use of space.
First casing 11 and the second casing 12 are arranged abreast, and wherein, the bottom surface of the first casing 11 is concordant from the bottom surface of the second casing 12 and the first casing 11 and the second casing 12 height is different.
Preferably, the first casing 11 and the second casing 12 one-body molded.First casing 11 and vertical being installed on the chassis of tool car of the second casing 12.For placing the mouse of computer and keyboard first height placing plate 20 places the height of plate 40 lower than second for placing display, the work for staff provides conveniently.
First places plate 20 also comprises at least one flat plate 22, dull and stereotyped 22 are arranged collapsibly relative to the first upper cover plate of the first casing 11, in working order, the upper plane of the dull and stereotyped upper plane of 22 and the first upper cover plate of the first casing 11 forms holding plane jointly, in collapsed state, flat board 22 is parallel to the side of the first casing 11.
In the present embodiment, the first end that the first placement plate 20 comprises two pieces of flat boards, 22, two pieces of flat boards 22 connects with two relative limits of the first casing 11 respectively, and arranges rotationally around connected limit relative to the first casing 11.In working order, two pieces of flat boards 22 extend respectively to the both sides of vehicle body and are in the plane of sustained height with the first upper cover plate of the first casing 11.In collapsed state, two pieces of flat boards 22 are all folded to the position parallel with the side of the first casing 11.Collapsed state is applicable to operation or the parked state of tool car, the width because of tool car can be avoided excessive and the collision that produces, also can reduce the space taken simultaneously.
In the present embodiment, the first casing 11 is also included in the supporting mechanism for support plate 22 under duty.Preferably, supporting mechanism has placing the corresponding holding state of the duty of plate 20 with first and placing the corresponding folded state of the collapsed state of plate 20 with first of support plate 22.
Supporting mechanism comprises the first gripper shoe 111, first gripper shoe 111 is connected with the side of the first casing 11 and rotatably arranges relative to first rotating shaft of side around vertical direction, first gripper shoe 111 comprises the first straight flange perpendicular to the first rotating shaft, in working order, first straight flange abuts with the lower plane of flat board 22, in collapsed state, the first gripper shoe 111 is parallel to the side of flat board 22 and the first casing 11.
Preferably, place the duty of plate 20 first, the first gripper shoe 111 rotates to the position perpendicular to the side of the first casing 11 be connected with the first gripper shoe 111.First straight flange abuts against with dull and stereotyped 22.Place the collapsed state of plate 20 first, the first gripper shoe 111 rotates the position of extremely fitting with the side of the first casing 11, then dull and stereotyped 22 is rotated down to the position parallel with the side of the first casing 11.
More preferably, supporting mechanism also comprises the second gripper shoe 112, second gripper shoe 112 is connected with the first gripper shoe 111 and arranges rotationally around the first straight flange relative to the first gripper shoe 111, in working order, second gripper shoe 112 abuts with the lower plane of flat board 22, in collapsed state, the second gripper shoe 112 is parallel to the side of dull and stereotyped 22, first gripper shoe 111 and the first casing 11.
First gripper shoe 111 also comprises the position-limit mechanism for the second gripper shoe 112 being limited to the position perpendicular with the first gripper shoe 111.Originally the second gripper shoe 112 fitted with the first gripper shoe 111 abuts with position-limit mechanism after the first straight flange rotates 270 degree.Place the duty of plate 20 first, the first gripper shoe 111 is perpendicular to the side of the first casing 11, and the second gripper shoe 112 abuts against with support plate 22 with dull and stereotyped 22 perpendicular to the first gripper shoe 111, second gripper shoe 112.First placement plate 20 to the process of collapsed state transition is, after flat board 22 is rotated up, second gripper shoe 112 is rotated the position to fitting with the first gripper shoe 111, then the first gripper shoe 111 fitted and the second gripper shoe 112 being rotated the position fitted to the side with the first casing 11, being finally rotated down the position to paralleling with the side of the first casing 11 by dull and stereotyped 22.Second gripper shoe 112 abuts against with dull and stereotyped 22, increases contact area, improves the stability of the first placement plate 20.
In the present embodiment, be multiple for supporting the supporting mechanism of every block flat board 22.Further, enhance the first placement plate 20 in working order time stability.
Second embodiment
As shown in Figure 4, in the present embodiment, one end of dull and stereotyped 22 is connected with the first casing 11 and rotatably arranges relative to the edge of the upper cover plate of the first casing, supporting mechanism comprises the 3rd gripper shoe 113, 3rd gripper shoe 113 is connected with dull and stereotyped 22 and arranges rotationally around the second rotating shaft perpendicular to edge relative to dull and stereotyped 22, 3rd gripper shoe 113 comprises the second straight flange perpendicular to the second rotating shaft, in working order, second straight flange of the 3rd gripper shoe 113 abuts with the side of the first casing 11, in collapsed state, 3rd gripper shoe 113 is parallel to the side of flat board 22 and the first casing 11.
Place the collapsed state of plate 20 first, the 3rd gripper shoe 113 fits together with dull and stereotyped 22.The 3rd gripper shoe 113 fit together and dull and stereotyped 22 is parallel to the side of the first casing 11.First placement plate 20 to the process of duty transition is, flat board 22 is rotated up, 3rd gripper shoe 113 rotates to the position perpendicular to dull and stereotyped 22 under gravity, rotate to when being in sustained height with the upper cover plate of the first casing 11 dull and stereotyped 22, the second straight flange of the 3rd gripper shoe 113 abuts with dull and stereotyped 22.First place plate 20 from collapsed state to duty conversion process, easy and simple to handle.
Supporting mechanism also comprises the 4th gripper shoe 114,4th gripper shoe 114 is connected with the 3rd gripper shoe 113 and can arranges rotationally relative to second straight flange of the 3rd gripper shoe 113 around the 3rd gripper shoe 113, in working order, 4th gripper shoe 114 abuts with the side of the first casing 11, in collapsed state, the 4th gripper shoe is parallel to the side of dull and stereotyped 22, the 3rd gripper shoe 113 and the first casing 11.
In the present embodiment, supporting mechanism also comprises the pillar for the second gripper shoe being fixed on the position perpendicular to the 3rd gripper shoe 113.The first end of pillar is connected with the 3rd gripper shoe 113 and arranges rotationally around the pivot perpendicular to the second rotating shaft relative to the 3rd gripper shoe 113.4th gripper shoe 114 comprises the rough surface arranged that to match with pillar.Pillar matches the 4th gripper shoe 114 to be fixed on the position perpendicular to the 3rd gripper shoe 113 with rough surface.
The side of the 4th gripper shoe 114 and the first casing 11 abuts against, and increases contact area, reduces the contact of line face and the wearing and tearing that cause.Add the stability of the first placement plate 20 simultaneously.
On described, be only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (11)

1. a tool car, is characterized in that, described tool car comprises:
Vehicle body (10), described vehicle body (10) comprises spatial accommodation;
First places plate (20), be arranged on described vehicle body (10), described first places plate (20) has support and is placed on described first and places the duty of instrument on plate (20) and/or equipment and and/or folding collapsed state detachable relative to described vehicle body (10);
Road wheel (30), described road wheel (30) is arranged at the bottom of described vehicle body (10).
2. tool car according to claim 1, it is characterized in that, described vehicle body (10) comprises the first casing (11), described spatial accommodation comprises the first spatial accommodation, it is inner that described first spatial accommodation is positioned at described first casing (11), and described first placement plate (20) comprises first upper cover plate (21) of described first casing (11).
3. tool car according to claim 2, is characterized in that, described tool car also comprises the second placement plate (40), and described second places plate (40) is arranged on described vehicle body (10).
4. tool car according to claim 3, it is characterized in that, described vehicle body (10) also comprises the second casing (12), described spatial accommodation also comprises the second spatial accommodation, it is inner that described second spatial accommodation is positioned at described second casing (12), and described second placement plate (40) comprises the second upper cover plate of described second casing (12).
5. tool car according to claim 4, it is characterized in that, described first casing (11) and described second casing (12) are arranged abreast along the direction of motion of described road wheel (30), wherein, the bottom surface of described first casing (11) and described first casing (11) concordant from the bottom surface of described second casing (12) is different with the height of described second casing (12).
6. tool car according to claim 2, it is characterized in that, described first places plate (20) also comprises at least one flat plate (22), described flat board (22) is arranged collapsibly relative to first upper cover plate (21) of described first casing (11), in described duty, the upper plane of the upper plane of described flat board (22) and described first upper cover plate (21) of described first casing (11) forms holding plane jointly, in described collapsed state, described flat board (22) is parallel to the side of described first casing (11).
7. tool car according to claim 6, is characterized in that, described first casing (11) is also included under described duty for supporting the supporting mechanism of described flat board (22).
8. tool car according to claim 7, it is characterized in that, described supporting mechanism comprises the first gripper shoe (111), described first gripper shoe (111) is connected with the described side of described first casing (11) and rotatably arranges relative to first rotating shaft of described side around vertical direction, described first gripper shoe (111) comprises the first straight flange perpendicular to described first rotating shaft, in described duty, described first straight flange abuts with the lower plane of described flat board (22), in described collapsed state, described first gripper shoe (111) is parallel to the described side of described first casing (11).
9. tool car according to claim 8, it is characterized in that, described supporting mechanism also comprises the second gripper shoe (112), described second gripper shoe (112) is connected with described first gripper shoe (111) and arranges rotationally around described first straight flange relative to described first gripper shoe (111), in described duty, described second gripper shoe (112) abuts with the lower plane of described flat board (22), in described collapsed state, described second gripper shoe (112) is parallel to the described side of described first casing (11).
10. tool car according to claim 7, it is characterized in that, one end of described flat board (22) is connected with described first casing (11) and rotatably arranges relative to the edge of described first upper cover plate (21) of described first casing (11), described supporting mechanism comprises the 3rd gripper shoe (113), described 3rd gripper shoe (113) is connected with described flat board (22) and arranges rotationally around the second rotating shaft perpendicular to described edge relative to described flat board (22), described 3rd gripper shoe (113) comprises the second straight flange perpendicular to described second rotating shaft, in described duty, described second straight flange of described 3rd gripper shoe (113) abuts with the described side of described first casing (11), in described collapsed state, described 3rd gripper shoe (121) is parallel to the described side of described first casing (11).
11. tool cars according to claim 10, it is characterized in that, described supporting mechanism also comprises the 4th gripper shoe (114), described 4th gripper shoe (114) is connected with described 3rd gripper shoe (113) and can arranges rotationally relative to described second straight flange of described 3rd gripper shoe (113) around described 3rd gripper shoe (113), in described duty, described 4th gripper shoe (114) abuts with the described side of described first casing (11), in described collapsed state, described 4th gripper shoe is parallel to the described side of described first casing (11).
CN201310452775.8A 2013-09-27 2013-09-27 Tool car Active CN104510164B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310452775.8A CN104510164B (en) 2013-09-27 2013-09-27 Tool car

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310452775.8A CN104510164B (en) 2013-09-27 2013-09-27 Tool car

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CN104510164A true CN104510164A (en) 2015-04-15
CN104510164B CN104510164B (en) 2017-09-29

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106301734A (en) * 2015-06-29 2017-01-04 中兴通讯股份有限公司 The management method of a kind of unauthorized carrier occupancy duration and device

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2397793Y (en) * 1999-09-30 2000-09-27 孟凡刚 Folding desk for reading and writing
CN2445870Y (en) * 2000-10-13 2001-09-05 傅凯 Multifunctional tool car
CN2739050Y (en) * 2004-09-06 2005-11-09 李成福 Tool-cart for electrician repairing motor vehicle
US20080084036A1 (en) * 2006-09-18 2008-04-10 Keeler Kevin V Tool and supply cart
CN201979506U (en) * 2010-12-02 2011-09-21 宁波欧日力电器制造有限公司 Tool car
CN201986965U (en) * 2011-04-07 2011-09-28 陈云燕 Folding dining table
US20120126674A1 (en) * 2010-11-23 2012-05-24 Ying Xie Tool wagon
CN202357153U (en) * 2011-11-24 2012-08-01 桐乡市汇丰电器压铸厂 Movable maintenance tool wagon
CN203047315U (en) * 2012-12-20 2013-07-10 贵阳永青仪电科技有限公司 Elongation type metalworking tool trolley
CN103296597A (en) * 2013-06-23 2013-09-11 国家电网公司 Multifunctional operational tool vehicle for switching operation
CN203467952U (en) * 2013-09-27 2014-03-12 国家电网公司 Tool car

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2397793Y (en) * 1999-09-30 2000-09-27 孟凡刚 Folding desk for reading and writing
CN2445870Y (en) * 2000-10-13 2001-09-05 傅凯 Multifunctional tool car
CN2739050Y (en) * 2004-09-06 2005-11-09 李成福 Tool-cart for electrician repairing motor vehicle
US20080084036A1 (en) * 2006-09-18 2008-04-10 Keeler Kevin V Tool and supply cart
US20120126674A1 (en) * 2010-11-23 2012-05-24 Ying Xie Tool wagon
CN201979506U (en) * 2010-12-02 2011-09-21 宁波欧日力电器制造有限公司 Tool car
CN201986965U (en) * 2011-04-07 2011-09-28 陈云燕 Folding dining table
CN202357153U (en) * 2011-11-24 2012-08-01 桐乡市汇丰电器压铸厂 Movable maintenance tool wagon
CN203047315U (en) * 2012-12-20 2013-07-10 贵阳永青仪电科技有限公司 Elongation type metalworking tool trolley
CN103296597A (en) * 2013-06-23 2013-09-11 国家电网公司 Multifunctional operational tool vehicle for switching operation
CN203467952U (en) * 2013-09-27 2014-03-12 国家电网公司 Tool car

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106301734A (en) * 2015-06-29 2017-01-04 中兴通讯股份有限公司 The management method of a kind of unauthorized carrier occupancy duration and device

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