CN107171246A - The lossless fixing-line device of contact line - Google Patents
The lossless fixing-line device of contact line Download PDFInfo
- Publication number
- CN107171246A CN107171246A CN201710596822.4A CN201710596822A CN107171246A CN 107171246 A CN107171246 A CN 107171246A CN 201710596822 A CN201710596822 A CN 201710596822A CN 107171246 A CN107171246 A CN 107171246A
- Authority
- CN
- China
- Prior art keywords
- wire
- contact
- contact line
- clamping device
- movable jaw
- 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
- 230000013011 mating Effects 0.000 claims abstract description 37
- 239000000758 substrate Substances 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 7
- 230000007246 mechanism Effects 0.000 claims description 9
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 3
- 239000004677 Nylon Substances 0.000 description 8
- 229920001778 nylon Polymers 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000008439 repair process Effects 0.000 description 3
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
Landscapes
- Clamps And Clips (AREA)
Abstract
The present invention relates to railway contact line technical field of construction equipment, more particularly to a kind of lossless fixing-line device of contact line.The lossless fixing-line device of contact line disclosed by the invention, including：Substrate；Determine jaw, determine jaw and be fixed on substrate；Movable clamp port, movable clamp port is movably arranged on substrate；Wherein, movable clamp port can drive the first mating surface on movable clamp port to do motion remote or close to the second mating surface determined on jaw, and the first mating surface is parallel with the second mating surface all the time in motion process.The fixing-line device of the present invention is Purely mechanical operation, without any external connection power can clamped contact line, and the clamping to contact line can be easily and quickly completed, while the damage to contact line can be avoided.
Description
Technical Field
The invention relates to the technical field of railway contact net construction equipment, in particular to a contact line nondestructive wire clamping device.
Background
When a high-speed rail contact network has a broken line fault, in order to ensure normal passing of a train, a fault point must be repaired, and the broken line connection needs to pull contact lines together first and cannot damage the contact lines, particularly the flow guide surfaces of the contact lines.
In the wire pulling operation of contact wire construction, the operation of maintaining the contact line cannot be completed only by manpower, and the contact line needs to be pulled through a wire grip, so that the wire grip for gripping the contact line is used.
Because the traction and connection of the contact line are all high-altitude operations, the wire clamping device for clamping the contact line has the following requirements:
1. the weight of the wire clamping device should be as light as possible, so that the wire tightening difficulty of the wire tightener is reduced;
2. the wire clamping device is simple and convenient to operate, so that the first-aid repair efficiency is improved;
3. the wire clamping device is firm and durable, so that accidents in the operation process are prevented;
4. in order to ensure the emergency repair effect, the wire clamping device cannot damage the contact wire.
However, the existing connection method is to directly clamp the contact wire with a common clamp to realize the connection of the broken wire, so that the common clamp is easy to damage the grooves (wire grooves) on the two sides of the contact wire and the flow guide surface of the contact wire when clamping the contact wire, thereby affecting the safe matching of the contact wire and the pantograph on the top of the high-speed rail locomotive and having higher potential safety hazard.
To the requirement of fixing-line device when actual salvageing, need provide one kind and can high-efficient pincers hold the contact wire to can not make the contact wire produce the fixing-line device of damage.
Disclosure of Invention
In order to solve the problems, the invention provides a nondestructive wire clamping device for a contact wire, which is convenient to operate and cannot damage the contact wire.
In order to achieve the above object, the present invention provides a contact wire nondestructive wire clamping device, including:
a substrate;
the fixed jaw is fixed on the substrate and is provided with a first matching surface matched with the wire groove on one side surface of the contact wire;
the movable jaw is movably arranged on the substrate and is provided with a second matching surface matched with the wire groove on the other side surface of the contact wire; wherein,
the movable jaw can drive a first matching surface on the movable jaw to move away from or close to a second matching surface on the fixed jaw, and the first matching surface is always parallel to the second matching surface in the moving process.
Furthermore, the first matching surface and the second matching surface are respectively clamped in a wire groove of the contact wire to be clamped.
Further, the first matching surface is wedge-shaped and is meshed with a wire groove on one side surface of the contact wire; the second matching surface is wedge-shaped and is meshed with the wire groove on the other side surface of the contact wire; tooth-shaped surfaces are respectively arranged on the first matching surface and/or the second matching surface; the surfaces of the first matching surface and the second matching surface are tooth-shaped surfaces.
Further, still include the handle, the handle with the base plate is articulated, the handle includes handheld portion and drive division, drive division with movable jaw rotatable coupling, the handle control movable jaw does and is kept away from or is close to the motion of deciding the jaw.
Further, still include reset spring, reset spring is used for making the handle drive the movable jaw resets.
Further, reset spring is the torsional spring, be provided with the erection column that is used for installing the torsional spring on the base plate, the torsional spring cover is established on the erection column, has seted up the torsional spring fixed orifices on the base plate, the one end card of torsional spring is established in the torsional spring fixed orifices, and the other end butt is at the drive division of handle to make the handle drive the movable vice jaw press to decide vice jaw, one side of erection column is provided with the arc flange. .
Further, the movable jaw device further comprises a guide mechanism, wherein the guide mechanism can guide the movement direction of the movable jaw, so that the first matching surface is always parallel to the second matching surface.
Further, the guiding mechanism comprises a sliding block arranged on the movable jaw and a sliding groove arranged on the base plate, and the sliding groove guides the moving direction of the movable jaw by controlling the moving track of the sliding block.
Further, the contact line nondestructive line clamping device is made of alloy steel.
Further, the base plate is at least provided with a pair of connecting holes, a connecting piece penetrates through the connecting holes, and the base plate is fixedly connected with the wire tightener through the connecting piece.
The invention relates to a contact line nondestructive line clamping device, which comprises a substrate, a fixed jaw and a movable jaw, wherein the movable jaw can drive a first matching surface on the movable jaw to move away from or close to a second matching surface on the fixed jaw, when the first matching surface is away from the second matching surface, the contact wire to be clamped can be inserted between the first mating surface and the second mating surface, when the first mating surface is close to the second mating surface, used for fixing the contact wire to be clamped, the first matching surface and the second matching surface are respectively matched with the wire grooves on the two side surfaces of the contact wire, the individualized matching butt joint of the wire clamping device and the contact wire is realized, when the contact wire is clamped, the two sides and the flow guiding surface of the contact wire cannot be damaged, the first matching surface is parallel to the second matching surface all the time in the movement process, and the damage to the contact wire is further avoided, so that the safe matching of the flow guiding surface of the contact wire and the pantograph is ensured. Therefore, the wire clamping device is operated in a pure mechanical mode, the contact wire can be clamped without any external power, the clamping of the contact wire can be conveniently and quickly completed, and meanwhile the damage to the contact wire can be avoided.
Drawings
FIG. 1 is a schematic structural diagram of a contact wire nondestructive wire clamping device of the present invention;
FIG. 2 is a front view of the contact wire nondestructive card line device of the present invention;
FIG. 3 is a schematic diagram of a second mating surface of the contact wire nondestructive card apparatus of the present invention;
FIG. 4 is a schematic structural diagram of a contact line nondestructive card line device of the present invention clamping the line grooves on both sides of the contact line;
FIG. 5 is a partial view of a return spring of the contact wire nondestructive card line device of the present invention;
FIG. 6 is a schematic diagram of a method for inserting nylon hanging strips in a contact wire nondestructive line clamping device according to the invention;
FIG. 7 is a schematic diagram of a contact wire nondestructive card and a contact wire fitting method according to the present invention;
fig. 8 is a partial schematic view of the return spring and the sliding groove of the contact line nondestructive card line device of the invention.
Description of reference numerals: 1. a substrate; 2. fixing a jaw; 3. a movable jaw; 4. a handle; 5. a first mating surface; 6. a second mating surface; 7. a return spring; 8. a slider; 9. a chute; 10. connecting holes; 11: a contact line; 12: a wire slot; 13: a nylon sling; 14. a flow guide surface; 15. an arc-shaped flange; 16: and (6) mounting the column.
Detailed Description
The following detailed description of embodiments of the invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are used only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-2, the contact wire nondestructive wire clamping device of the embodiment of the invention can be used for 150mm of cross section area of a high-speed rail contact net2The contact wire 11 is used for wire breaking and rush repair, and comprises a substrate 1, a fixed jaw 2 and a movable jaw 3. Wherein the base plate 1 serves as a body for carrying other parts of the caliper. The fixed jaw 2 is fixed on the substrate 1, and the fixed jaw 2 may be integrally provided with the substrate 1 or may be fixedly connected to the substrate 1 by welding or the like. The movable jaw 3 is movably disposed on the substrate 1, and the movable jaw 3 may be directly movably connected to the substrate 1 or movably connected to the substrate 1 through other components. Of course, the wire clamping device is not only suitable for the wire clamping device with the cross section area of 150mm2The contact wire of (2) is also suitable for contact wires of other various specifications, in particular, the contact wire is different from 150mm according to the sectional area2The specification of (A) is 85mm in the current common use2、110mm2、 120mm2Three specifications are provided.
In the embodiment of the present invention, the movable jaw 3 can drive the first mating surface 5 on the movable jaw 3 to move away from or close to the second mating surface 6 on the fixed jaw 2. When the first mating surface 5 is far away from the second mating surface 6, enough space for placing the contact wire 11 can be reserved, and the end of the contact wire 11 can be easily inserted between the first mating surface 5 and the second mating surface 6; when the first matching surface 5 is close to the second matching surface 6, the second matching surface 6 can be gradually clamped by the first matching surface 5, and finally the contact line 11 is clamped, so that the contact line 11 is dragged.
In the embodiment of the present invention, the first mating surface 5 is always parallel to the second mating surface 6 during the movement process, so that when the fixed jaw 2 moves relative to the movable jaw 3, the first mating surface 5 can be prevented from damaging the contact line 11 as much as possible.
In the embodiment of the present invention, the first mating surface 5 and the second mating surface 6 may also be respectively clamped in the wire grooves 12 on both sides of the contact wire 11 to be clamped. At this time, the widths of the first matching surface 5 and the second matching surface 6 are required to be smaller than the width of the slot 12, so that the first matching surface 5 can be embedded into the slot 12, and the contact wire 11 can be prevented from being damaged by pressure generated by the first contact surface and the second contact surface when the contact wire 11 is clamped by the first contact surface and the second contact surface.
In the embodiment of the present invention, as shown in fig. 3, the first mating surface 5 and/or the second mating surface 6 may be further provided with a toothed surface, respectively, to increase the friction force. Wherein the first mating surface 5 and the second mating surface 6 may be wedge-shaped. Of course, the tooth-shaped surfaces of the first mating surface 5 and the second mating surface 6 may be any tooth-shaped surfaces such as a triangular tooth-shaped surface and a trapezoidal tooth-shaped surface, as long as the friction between the first mating surface 5 and the contact line 11 and the friction between the second mating surface 6 and the contact line 11 can be increased, the contact line 11 can be effectively prevented from sliding, and the damage to the contact line 11 can be reduced.
Further, when the first fitting surface 5 and the second fitting surface 6 are wedge-shaped and engaged with each other, as shown in fig. 4, the slot 12 which is fitted with the first fitting surface 5 and the second fitting surface 6 is a V-like slot whose shape is just fitted with the wedge-shaped of the first fitting surface 5 and the second fitting surface 6, so that the first fitting surface is engaged with the slot on one side surface of the contact wire, and the second fitting surface is engaged with the slot on the other side surface of the contact wire, thereby better realizing clamping and better increasing the friction force between the fitting surfaces and the slots. When the first matching surface 5 and the second matching surface 6 are matched to clamp the contact line 11, the flow guiding surface 14 of the contact line 11 cannot be damaged like the contact line which is disconnected by adopting a clamp in the prior art, so that when the flow guiding surface is matched with a pantograph on a high-speed rail, the safety is good, and the normal operation of the high-speed rail cannot be influenced.
In another embodiment of the present invention, the handle 4 is hinged to the base plate 1, the handle 4 includes a handle portion and a driving portion, the driving portion is rotatably connected to the movable jaw 3, and the handle 4 can control the movable jaw 3 to move away from or close to the fixed jaw 2. Specifically, the operator can rotate the handle 4 by rotating the handle, so that the driving portion moves the movable jaw 3. In this embodiment, carry out manual mechanical control to first fitting surface 5 and second fitting surface 6 through handle 4, only need the handheld portion of manual control handle 4 can accomplish the centre gripping to contact line 11, make the easy operation, the convenience of fixing the line ware.
In another embodiment of the present invention, as shown in fig. 5 and 8, a return spring 7 is further included, and the return spring 7 is used for returning the movable jaw 3 driven by the handle 4. Wherein, reset spring 7 can be the torsional spring, is provided with the erection column 16 that is used for installing the torsional spring on the base plate 1, and the torsional spring cover is established on the erection column, and one side of erection column is provided with arc flange 15, has seted up the torsional spring fixed orifices on the base plate, and the one end of torsional spring is bent and is inserted in the torsional spring fixed orifices, and the other end butt is in the drive division of handle to make handle 4 drive movable vice jaw 3 press to fixed vice jaw 2. When the handle 4 is rotated to be opened, the movable jaw 3 moves away from the fixed jaw 2, and the first matching surface 5 and the second matching surface 6 are opened. At this time, if the handle 4 is released, the return spring 7 can automatically return the handle 4, so that the handle 4 becomes a closed state, and the first matching surface 5 is driven to approach the second matching surface 6, so that the first matching surface 5 and the second matching surface 6 are closed.
In another embodiment of the present invention, the present invention further comprises a guiding mechanism, which can guide the moving direction of the movable jaw 3, so that the first mating surface 5 is always parallel to the second mating surface 6. In this embodiment, the guiding mechanism may include a slider 8 disposed on the movable jaw 3 and a sliding chute 9 disposed on the substrate 1, the sliding chute is configured in an arc shape, and the sliding chute 9 guides the moving direction of the movable jaw 3 by controlling the moving track of the slider 8. Specifically, the handle 4 can drive the movable jaw 3 to move away from or close to the fixed jaw 2, and the rotating shaft between the movable jaw 3 and the handle 4 is matched with the guide mechanism, so that the first contact surface is always parallel to the second contact surface. The torsion spring deflects when working, so that the arc-shaped flanges 15 are arranged, and the arc-shaped flanges 15 are used for preventing the torsion spring and the sliding block 8 from interfering with each other when moving, so that the working reliability of the wire clamping device is improved; in addition, the sliding block is sleeved with a lantern ring, and the end face of the lantern ring forms a step matched with the edge of the sliding groove, so that the stability and reliability of the relative movement of the sliding block and the sliding groove are improved.
In the embodiment of the invention, the wire clamping device is made of alloy steel. The alloy steel is high-strength alloy steel, and is processed by a plurality of special heat treatment processes, so that the wire clamping device is light in weight and long in service life, and the safety of the wire clamping device in work is ensured.
In another embodiment of the present invention, at least one pair of connection holes 10 is further disposed on the substrate 1, a connection member is disposed in the connection hole 10, and the substrate 1 is fixedly connected to the wire grip through the connection member. Specifically, the connecting member may be a nylon strap 13, and the connecting hole 10 is used for penetrating the nylon strap 13 and is connected with the tightener through the nylon strap 13.
In one embodiment of the present invention, the wire clamp may be sized to: the maximum length is 298.5mm, the maximum width is 153mm and the maximum height is 42 mm. The weight of the wire clamping device is 2.7 kg.
In the embodiment of the invention, the contact wire type applicable to the wire clamping device is as follows: CT85, CT110, CT120, CT 150; CTA85, CTA110, CTA120, CTA 150; CTAH85, CTAH110, CTAH120, CTAH 150; CTM110, CTM120, CTM 150; CTMH110, CTMH120, CTMH 150; and CTS110, CTS120, CTS 150.
The use method of the wire clamping device comprises the following steps: before use, whether the tool is normal is checked, then a nylon sling 13 penetrates into the connecting holes 10 according to the mode of figure 6, the nylon sling 13 is connected with the two connecting holes 10 in a U-shaped structure, then the handle 4 is rotated to open the movable jaw 3 and the fixed jaw 2, an interface line is inserted, the first contact surface and the second contact surface are respectively aligned to the wire grooves 12 on two sides of the contact line 11, as shown in figure 7, the hand is loosened, and the contact line 11 is clamped by the wire clamping device. After the contact wire 11 is clamped by the wire clamping device, the nylon hanging strip 13 is connected with the wire tightener to draw and connect the contact wire 11.
The foregoing is merely illustrative of the present invention, and it will be appreciated by those skilled in the art that various modifications may be made without departing from the principles of the invention, and the scope of the invention is to be determined accordingly.
Claims (10)
1. A contact wire nondestructive wire clamping device is characterized by comprising:
a substrate;
the fixed jaw is fixed on the substrate and is provided with a first matching surface matched with the wire groove on one side surface of the contact wire;
the movable jaw is movably arranged on the substrate and is provided with a second matching surface matched with the wire groove on the other side surface of the contact wire; wherein,
the movable jaw can drive a first matching surface on the movable jaw to move away from or close to a second matching surface on the fixed jaw, and the first matching surface is always parallel to the second matching surface in the moving process.
2. The contact line nondestructive wire clamping device according to claim 1, wherein the first mating surface and the second mating surface are respectively clamped in a wire groove of a contact line to be clamped.
3. The contact line nondestructive card line apparatus of claim 1, wherein said first mating surface is wedge-shaped to engage a wire groove on a side of said contact line; the second matching surface is wedge-shaped and is meshed with the wire groove on the other side surface of the contact wire; tooth-shaped surfaces are respectively arranged on the first matching surface and/or the second matching surface; the surfaces of the first matching surface and the second matching surface are tooth-shaped surfaces.
4. The contact line nondestructive wire clamping device as recited in claim 1, further comprising a handle, wherein said handle is hinged to said base plate, said handle comprises a handle portion and a driving portion, said driving portion is rotatably connected to said movable jaw, and said handle controls said movable jaw to move away from or close to said fixed jaw.
5. The contact line nondestructive wire clamping device as recited in claim 4, further comprising a return spring for returning said movable jaw by said handle.
6. The contact line nondestructive line clamping device as claimed in claim 5, wherein the return spring is a torsion spring, the base plate is provided with a mounting post for mounting the torsion spring, the torsion spring is sleeved on the mounting post, the base plate is provided with a torsion spring fixing hole, one end of the torsion spring is clamped in the torsion spring fixing hole, the other end of the torsion spring abuts against the driving portion of the handle, so that the handle drives the movable jaw to press against the fixed jaw, and one side of the mounting post is provided with an arc-shaped flange.
7. The contact line nondestructive wire clamp of any one of claims 1 to 6, further comprising a guiding mechanism, wherein said guiding mechanism guides the direction of movement of said movable jaw such that said first mating surface is always parallel to said second mating surface.
8. The contact line nondestructive line clamping device as claimed in claim 7, wherein said guiding mechanism comprises a sliding block disposed on said movable jaw and a sliding groove disposed on said base plate, said sliding groove guiding the moving direction of said movable jaw by controlling the moving track of said sliding block.
9. The contact line nondestructive wire clamping device of claim 1, wherein the contact line nondestructive wire clamping device is made of alloy steel.
10. The contact line nondestructive line clamping device as claimed in claim 1, wherein at least a pair of connection holes is formed on the base plate, a connection member is inserted into the connection holes, and the base plate is fixedly connected to the line tightener through the connection member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710596822.4A CN107171246A (en) | 2017-07-20 | 2017-07-20 | The lossless fixing-line device of contact line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710596822.4A CN107171246A (en) | 2017-07-20 | 2017-07-20 | The lossless fixing-line device of contact line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107171246A true CN107171246A (en) | 2017-09-15 |
Family
ID=59818044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710596822.4A Pending CN107171246A (en) | 2017-07-20 | 2017-07-20 | The lossless fixing-line device of contact line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107171246A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2135430Y (en) * | 1992-08-31 | 1993-06-09 | 浙江省邮电印刷厂 | Plastic birding clamp |
| CN201457115U (en) * | 2009-05-22 | 2010-05-12 | 宝鸡保德利电气设备有限责任公司 | Section wire fork |
| CN104668428A (en) * | 2013-12-02 | 2015-06-03 | 江西昌河航空工业有限公司 | Manually-operated indenting tool |
| CN105932606A (en) * | 2016-07-11 | 2016-09-07 | 国网江苏省电力公司宿迁供电公司 | Intelligent digital line clamp |
| CN106041802A (en) * | 2016-07-06 | 2016-10-26 | 南京机电职业技术学院 | Monkey wrench |
| CN207166019U (en) * | 2017-07-20 | 2018-03-30 | 北京天泽电力集团有限公司 | The lossless fixing-line device of contact line |
-
2017
- 2017-07-20 CN CN201710596822.4A patent/CN107171246A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2135430Y (en) * | 1992-08-31 | 1993-06-09 | 浙江省邮电印刷厂 | Plastic birding clamp |
| CN201457115U (en) * | 2009-05-22 | 2010-05-12 | 宝鸡保德利电气设备有限责任公司 | Section wire fork |
| CN104668428A (en) * | 2013-12-02 | 2015-06-03 | 江西昌河航空工业有限公司 | Manually-operated indenting tool |
| CN106041802A (en) * | 2016-07-06 | 2016-10-26 | 南京机电职业技术学院 | Monkey wrench |
| CN105932606A (en) * | 2016-07-11 | 2016-09-07 | 国网江苏省电力公司宿迁供电公司 | Intelligent digital line clamp |
| CN207166019U (en) * | 2017-07-20 | 2018-03-30 | 北京天泽电力集团有限公司 | The lossless fixing-line device of contact line |
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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 | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 2000 business center 100 No. eight Zhuang Xili 100025 Beijing Chaoyang District Chaoyang Road No. 1 building B room 1801 Applicant after: Beijing Tianze Electric Power Group Co., Ltd. Address before: 2000 business center 100 No. eight Zhuang Xili 100025 Beijing Chaoyang District Chaoyang Road No. 1 building B room 1801 Applicant before: Beijing Tianze Electric Power Equipment Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170915 |