CN109958473A - A kind of positioning device for railway tunnel contact net curved channel - Google Patents
A kind of positioning device for railway tunnel contact net curved channel Download PDFInfo
- Publication number
- CN109958473A CN109958473A CN201711398508.1A CN201711398508A CN109958473A CN 109958473 A CN109958473 A CN 109958473A CN 201711398508 A CN201711398508 A CN 201711398508A CN 109958473 A CN109958473 A CN 109958473A
- Authority
- CN
- China
- Prior art keywords
- locating piece
- concave
- concave locating
- positioning
- support
- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/04—Distributing means for power supply in mines
- E21F17/06—Distributing electric power; Cable networks; Conduits for cables
Abstract
The present invention provides a kind of positioning device for railway tunnel contact net curved channel, including shape of the mouth as one speaks support frame, it is vertically fixed on the support leg of four vertex of shape of the mouth as one speaks support frame lower end surface, it is arranged in parallel in the limit plate and positioning regulating mechanism and the hydraulically extensible system for being fixed at positioning regulating mechanism lower end surface of shape of the mouth as one speaks support frame upper surface, positioning regulating mechanism includes the vertical slideway being oppositely arranged, the sliding supporting bar being slidably arranged in vertical slideway and the concave locating piece group for being fixed at sliding supporting bar upper surface, the first fastening bolt is threaded with through the upper surface of vertical slideway, through equipped with the threaded hole opposite with the first fastening bolt in second support bar and third support rod, threaded hole internal screw thread is connected with the second fastening bolt, the free end of second fastening bolt is in the upper end of second support bar and third support rod Face is pierced by, and the present invention improves the depth of parallelism and installation accuracy of contact net curved channel, guarantees the construction quality of later period conduit Embedment Construction.
Description
Technical field
The invention belongs to constructing tunnel equipment technical fields, are used for railway tunnel contact net arc groove more particularly, to one kind
The positioning device in road.
Background technique
Tunnel overhead contact is the transmission line of electricity for the special shape powered to electric locomotive that downline overhead is set up, usually
Tunnel overhead contact is hung using tunnel overhead contact conduit, in the prior art, for the mounting means one of tunnel overhead contact conduit
As replace can be convenient post facility and pipe by the way of traditional chemical anchor bolt matches with metallic support using pre-buried channel flow technology
Line installation, so that equipment and line layout are convenient, flexible, substantially improves in-site installation construction environment, can efficiently improve installation
Working efficiency shortens the construction period, and can largely reduce the later maintenance workload of operation stage, and therefore, use is pre-buried
Conduit technology can be improved the safety of whole main structure, extend the service life period in tunnel, have economical well
Property.
Tunnel overhead contact conduit is generally embedded in Tunnel Second Lining, and lining cutting roof face is curved surface, with high-speed railway
Construction and development, tunnel overhead contact conduit using more and more extensive, when installation between two conduits spacing and the depth of parallelism miss
Difference requires stringent, but in the construction process, situations such as conduit is easy to appear not parallel, dislocation, end is uneven, causes installation not
Qualification, needing to do over again re-starts construction, leads to that working efficiency is low, wasting manpower and material resources.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of positioning devices for railway tunnel contact net curved channel, effectively
The depth of parallelism and installation accuracy for improving contact net curved channel, guarantee the construction quality of later period conduit Embedment Construction.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: one kind being used for railway tunnel contact net arc
The positioning device of conduit, the branch including shape of the mouth as one speaks support frame, four vertex for being vertically fixed on shape of the mouth as one speaks support frame lower end surface
Support foot, the limit plate for being arranged in parallel in shape of the mouth as one speaks support frame upper surface and positioning regulating mechanism and be fixed at it is described fixed
The hydraulically extensible system of position regulating mechanism lower end surface,
The shape of the mouth as one speaks support frame includes first support bar and is mutually perpendicular to respectively with two end faces of the first support bar
Second support bar and third support rod, the second support bar and third support rod be parallel to each other, the limit plate vertical welding
It connects in the first support bar；
The positioning regulating mechanism is fixed between the second support bar and third support rod, and the positioning is adjusted
Mechanism includes the vertical slideway being oppositely arranged in the second support bar and third support rod, is slidably arranged in the vertical cunning
Sliding supporting bar in road and the concave locating piece group for being fixed at the sliding supporting bar upper surface, run through the vertical cunning
The upper surface in road is threaded with the first fastening bolt, in the second support bar and third support rod through be equipped with it is described
The opposite threaded hole of first fastening bolt, the threaded hole internal screw thread are connected with the second fastening bolt, second fastening bolt
Free end be pierced by the upper surface of the second support bar and third support rod, the groove direction of the concave locating piece group with
The limit plate is oppositely arranged；
The telescopic rod of the hydraulically extensible system is fixedly connected with the lower end surface of the sliding supporting bar.
Further, the width of the limit plate is less than the width of the first support bar, and the limit plate is outer
End face and the outer end face of the first support bar are flush.
Further, the number of the positioning regulating mechanism be 3 or more, the two neighboring positioning regulating mechanism away from
From equal.
Further, the spill locating piece group includes the first concave locating piece of word order, the second concave locating piece
With third concave locating piece, the distance between central axis of the first concave locating piece and the second concave locating piece is 400mm,
The distance between central axis of the first concave locating piece and third concave locating piece is 600mm.
Further, the lower end surface of the first concave locating piece, the second concave locating piece and third concave locating piece is equal
Equipped with circular through hole, three circular through holes run through the sliding supporting bar, and position is distinguished in the center of circle of three circular through holes
In on the central axis of the first concave locating piece, the second concave locating piece and third concave locating piece, first concave is fixed
Channel width is equipped with by the circular through hole in position block, the second concave locating piece and third concave locating piece and adjusts mold, institute
It states channel width and adjusts the positioning column that mold includes the 4th concave locating piece and vertical 4th concave positioning block bottom face, institute
It states positioning column to match with the circular through hole, the 4th concave locating piece and the positioning column are located on same central axes.
Further, on the side wall of the first concave locating piece, the second concave locating piece and third concave locating piece
It is opposite through being equipped with third fastening bolt, the third fastening bolt is threaded in the first concave locating piece, second recessed
On the side wall of type locating piece and third concave locating piece.
Further, the hydraulically extensible system include hydraulic oil container, the hydraulic pump being connected with the hydraulic oil container, with
Hydraulic cylinder that the hydraulic pump and hydraulic oil container are connected, the telescopic rod being connected with the hydraulic cylinder, the control telescopic rod
Hydraulic control system and with the hydraulic control system be electrically connected the first control button and the second control button.
Compared with prior art, the present invention has the advantage that is with beneficial effect:
1, the present invention can make one end of curved channel and limit plate neat by the way that limit plate is arranged in one end of support frame
It is flat, efficiently solve the problems, such as that curved channel end face is uneven, meanwhile, by hydraulically extensible system to being moved down on sliding supporting bar
It is dynamic, the height ratio between adjacent sliding supporting bar is adjusted, concave locating piece group can be made preferably to determine curved channel
Positioning accuracy is improved in position, and by the adjusting to sliding supporting bar height, this positioning device is made to can adapt to different radians
Curved channel, it is applied widely；
2, the first fastening bolt and the second fastening bolt is arranged in the upper and lower side of vertical slideway in the present invention, in hydraulically extensible system
After positioning is adjusted to sliding supporting bar in system, by the first fastening bolt and the second fastening bolt to the sliding in vertical slideway
Support rod is further fixed, and sliding supporting bar stress balance is made, and is effectively prevent sliding supporting bar unbalance stress and is deformed,
To influence the positioning accuracy of cambered way；
3, the present invention can pass through circle in the first concave locating piece, the second concave locating piece and third concave locating piece
Through-hole reinstalls channel width again and adjusts mold, by adjusting the replacement of mold to channel width, can adapt to different size
The positioning of the curved channel of model, also, the central axes of channel width adjusting mold are consistent with the central axes of former concave locating piece,
It can guarantee the accuracy positioned to different size model curved channel, and channel width adjusts mold and fastens spiral shell by third
Bolt is further fixed, and the stability that channel width adjusts mold is improved.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the positioning device for railway tunnel contact net curved channel of the present invention.
Fig. 2 is a kind of first concave locating piece of the positioning device for railway tunnel contact net curved channel of the present invention
Overlooking structure diagram.
Fig. 3 is that a kind of channel width of the positioning device for railway tunnel contact net curved channel of the present invention adjusts mold
Structural schematic diagram.
In figure: 1- shape of the mouth as one speaks support frame；2- support leg；3- limit plate；The vertical slideway of 4-；5- sliding supporting bar；6- first is tight
Fixing bolt；The second fastening bolt of 7-；8- the first concave locating piece；9- the second concave locating piece；10- third concave locating piece；11-
Circular through hole；12- channel width adjusts mold；13- third fastening bolt；14- hydraulic oil container；15- hydraulic pump；16- hydraulic cylinder；
17- telescopic rod；18- hydraulic control system；The first control button of 19-；The second control button of 20-；101- first support bar；102-
Second support bar；103- third support rod；The 4th concave locating piece of 1201-；1202- positioning column.
Specific embodiment
It elaborates with reference to the accompanying drawing to a specific embodiment of the invention.
As shown in Figure 1-Figure 3, a kind of positioning device for railway tunnel contact net curved channel, including shape of the mouth as one speaks support frame
1, it is vertically fixed on the support leg 2 of four vertex of 1 lower end surface of shape of the mouth as one speaks support frame, is arranged in parallel in the shape of the mouth as one speaks support
It the limit plate 3 and positioning regulating mechanism of 1 upper surface of frame and is fixed at the hydraulic of positioning regulating mechanism lower end surface and stretches
Compression system, the shape of the mouth as one speaks support frame 1 include first support bar 101 and respectively with two end face phases of the first support bar 101
Mutually vertical second support bar 102 and third support rod 103, the second support bar 102 and third support rod 103 are mutually flat
Row, the limit plate are vertically welded in the first support bar 101, and the width of the limit plate 3 is less than first support
The width of bar 101, and the outer end face of the limit plate 3 and the outer end face of the first support bar 101 are flush, by limit plate
3 are set as relatively narrow width, one end of curved channel can be made to flush by limit plate 3 outer, while can make first support bar
Certain supporting role is played in the end of 101 pairs of curved channels, improves the stability of curved channel；
The positioning regulating mechanism is fixed between the second support bar 102 and third support rod 103, described fixed
Position regulating mechanism include the vertical slideway 4 being oppositely arranged on the second support bar 102 and third support rod 103, sliding set
The concave locating piece set the sliding supporting bar 5 in the vertical slideway 4 and be fixed at 5 upper surface of sliding supporting bar
Group is threaded with the first fastening bolt 6, the second support bar 102 and third branch through the upper surface of the vertical slideway 4
Through the threaded hole (not shown) opposite with first fastening bolt 6 is equipped on strut 103, the threaded hole internal screw thread connects
It is connected to the second fastening bolt 7, the free end of second fastening bolt 7 is in the second support bar 102 and third support rod 103
Upper surface be pierced by, the groove direction of the concave locating piece group is oppositely arranged with the limit plate 3, passes through the first fastening bolt
6 and second fastening bolt 7 sliding supporting bar 5 in vertical slideway 4 is further fixed, make 5 stress of sliding supporting bar
Balance, effectively prevent 5 unbalance stress of sliding supporting bar and deforms, to influence the positioning accuracy of cambered way；
The telescopic rod 17 of the hydraulically extensible system is fixedly connected with the lower end surface of the sliding supporting bar 5, by hydraulic
The height of sliding supporting bar 5 is adjusted in telescopic system, can be attained by accurately from the curved channel of different radians
The effect of positioning.
Further, the number of the positioning regulating mechanism be 3 or more, the two neighboring positioning regulating mechanism away from
From equal, multipoint positioning of the realization to curved channel, raising positioning accuracy.
Further, the spill locating piece group includes the first concave locating piece 8 of word order, the second concave locating piece
9 and third concave locating piece 10, the distance between the central axis of the first concave locating piece 8 and the second concave locating piece 9 is
The distance between central axis of 400mm, the first concave locating piece 8 and third concave locating piece 10 is 600mm, by by two
A curved channel is individually positioned on the first concave locating piece 8 and the second concave locating piece 9, the curved channel finally oriented
Spacing is 400mm, by the way that two curved channels are individually positioned on the first concave locating piece 8 and third concave locating piece 10,
The spacing for the curved channel finally oriented is 600mm, since the spacing of usual curved channel is 400mm or 600mm, because
This, can directly be positioned the distance of two curved channels by this positioning device, easy to use, fast, not needed pair
Width is adjusted.
Further, the lower end of the first concave locating piece 8, the second concave locating piece 9 and third concave locating piece 10
Face is equipped with circular through hole 11, and three circular through holes 11 run through the sliding supporting bar 5, three circular through holes 11
The center of circle is located on the central axis of the first concave locating piece 8, the second concave locating piece 9 and third concave locating piece 10,
It is equipped in the first concave locating piece 8, the second concave locating piece 9 and third concave locating piece 10 by the circular through hole 11
Channel width adjusts mold 12, and it includes the 4th concave locating piece 1201 and the vertical described 4th that the channel width, which adjusts mold 12,
The positioning column 1202 of 1201 lower end surface of concave locating piece, the positioning column 1202 match with the circular through hole 11, and described
Four concave locating pieces 1201 are located on same central axes with the positioning column 1202, according to the rule of the curved channel of required positioning
Lattice, the channel width that dimension is installed in concave locating piece adjust mold 12, realize to the curved channel of plurality of specifications
Positioning, it is applied widely.
Further, the side wall of the first concave locating piece 8, the second concave locating piece 9 and third concave locating piece 10
On it is opposite through third fastening bolt 13 is equipped with, the third fastening bolt 13 is threaded in the first concave locating piece
8, on the side wall of the second concave locating piece 9 and third concave locating piece 10, and channel width adjusting mold 12 is tight by third
Fixing bolt 13 is further fixed, and the stability that channel width adjusts mold is improved.
Further, the hydraulically extensible system include hydraulic oil container 14, be connected with the hydraulic oil container 14 it is hydraulic
Pump 15, the hydraulic cylinder 16 being connected with the hydraulic pump 15 and hydraulic oil container 14, the telescopic rod being connected with the hydraulic cylinder 16
17, the first control for controlling the hydraulic control system 18 of the telescopic rod 17 and being electrically connected with the hydraulic control system 18 is pressed
Button 19 and the second control button 20, the first control button 19 control the elongation of telescopic rod 17, and the control of the second control button 20 is flexible
The contraction of bar 17, entire hydraulically extensible system 18 is hydraulically extensible equipment commonly used in the prior art herein, as long as can control
The elongation and contraction of telescopic rod 17 processed.
The course of work of the invention are as follows: 2 curved channels are placed into the upper end of correspondingly concave locating piece first, by 2
One end of a curved channel is mutually against on limit plate 3, in the side close to limit plate 3, successively adjusts the height of sliding supporting bar 5
Degree complies with the radian of curved channel, and is carried out by the first fastening bolt 6 and the second fastening bolt 7 to sliding supporting bar 5
It is further fixed, after the completion of adjusting, is welded with band steel and 2 curved channels, curved channel is fixed, has been fixed
At curved channel be installed on trolley, secondary lining casting process in be fixed to tunnel top.
When the curved channel to different size positions, by the channel width of dimension adjust mold 12 pass through by
Positioning column 1202 is inserted into circular through hole 11, and is adjusted mold 12 to channel width with third fastening bolt 13 and carried out further
Fixation can adapt to the positioning of different size curved channel to change the size of original concave locating piece.
One embodiment of the present invention has been described in detail above, but the content is only preferable implementation of the invention
Example, should not be considered as limiting the scope of the invention.It is all according to all the changes and improvements made by the present patent application range
Deng should still be within the scope of the patent of the present invention.
Claims (7)
1. a kind of positioning device for railway tunnel contact net curved channel, it is characterised in that: including shape of the mouth as one speaks support frame, vertically
It is fixed on the support leg of four vertex of shape of the mouth as one speaks support frame lower end surface, is arranged in parallel in shape of the mouth as one speaks support frame upper surface
Limit plate and positioning regulating mechanism and the hydraulically extensible system for being fixed at the positioning regulating mechanism lower end surface,
The shape of the mouth as one speaks support frame include first support bar and respectively with two end faces of the first support bar orthogonal
Two support rods and third support rod, the second support bar and third support rod are parallel to each other, and the limit plate is vertically welded in
In the first support bar；
The positioning regulating mechanism is fixed between the second support bar and third support rod, the positioning regulating mechanism
Including be oppositely arranged in the second support bar and third support rod vertical slideway, be slidably arranged in the vertical slideway
Sliding supporting bar and be fixed at the concave locating piece group of the sliding supporting bar upper surface, through the vertical slideway
Upper surface is threaded with the first fastening bolt, through being equipped with and described first in the second support bar and third support rod
The opposite threaded hole of fastening bolt, the threaded hole internal screw thread are connected with the second fastening bolt, second fastening bolt from
Be pierced by by holding in the upper surface of the second support bar and third support rod, the groove direction of the concave locating piece group with it is described
Limit plate is oppositely arranged；
The telescopic rod of the hydraulically extensible system is fixedly connected with the lower end surface of the sliding supporting bar.
2. a kind of positioning device for railway tunnel contact net curved channel according to claim 1, it is characterised in that:
The width of the limit plate is less than the width of the first support bar, and the outer end face of the limit plate and first support
The outer end face of bar is flush.
3. a kind of positioning device for railway tunnel contact net curved channel according to claim 1, it is characterised in that:
The number of the positioning regulating mechanism is 3 or more, and the two neighboring positioning regulating mechanism is equidistant.
4. a kind of positioning device for railway tunnel contact net curved channel according to claim 1, it is characterised in that:
The spill locating piece group includes the first concave locating piece, the second concave locating piece and third concave locating piece of word order,
The distance between central axis of the first concave locating piece and the second concave locating piece is 400mm, the first concave positioning
The distance between central axis of block and third concave locating piece is 600mm.
5. a kind of positioning device for railway tunnel contact net curved channel according to claim 4, it is characterised in that:
The lower end surface of the first concave locating piece, the second concave locating piece and third concave locating piece is equipped with circular through hole, and three
The circular through hole runs through the sliding supporting bar, and the center of circle of three circular through holes is located at the first concave positioning
On the central axis of block, the second concave locating piece and third concave locating piece, the first concave locating piece, the second concave locating piece
Mold is adjusted with channel width is equipped with by the circular through hole in third concave locating piece, the channel width adjusts mold packet
The positioning column of the 4th concave locating piece and vertical 4th concave positioning block bottom face is included, the positioning column and the circle are logical
Hole matches, and the 4th concave locating piece and the positioning column are located on same central axes.
6. a kind of positioning device for railway tunnel contact net curved channel according to claim 5, it is characterised in that:
It is opposite tight through third is equipped on the side wall of the first concave locating piece, the second concave locating piece and third concave locating piece
Fixing bolt, the third fastening bolt are threaded in the first concave locating piece, the second concave locating piece and third concave
On the side wall of locating piece.
7. a kind of positioning device for railway tunnel contact net curved channel according to claim 1, it is characterised in that:
The hydraulically extensible system include hydraulic oil container, the hydraulic pump being connected with the hydraulic oil container, with the hydraulic pump and hydraulic
Hydraulic cylinder that fuel tank is connected, the telescopic rod being connected with the hydraulic cylinder, the control telescopic rod hydraulic control system and
The first control button and the second control button being electrically connected with the hydraulic control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711398508.1A CN109958473A (en) | 2017-12-22 | 2017-12-22 | A kind of positioning device for railway tunnel contact net curved channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711398508.1A CN109958473A (en) | 2017-12-22 | 2017-12-22 | A kind of positioning device for railway tunnel contact net curved channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109958473A true CN109958473A (en) | 2019-07-02 |
Family
ID=67018690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711398508.1A Pending CN109958473A (en) | 2017-12-22 | 2017-12-22 | A kind of positioning device for railway tunnel contact net curved channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109958473A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090328A (en) * | 2021-04-09 | 2021-07-09 | 中铁三局集团有限公司 | Positioning device for pre-buried channel of contact net |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200954670Y (en) * | 2006-10-09 | 2007-10-03 | 宁波信泰机械有限公司 | Arc-shape strip-like product positioning device |
| CN203211121U (en) * | 2013-05-03 | 2013-09-25 | 中铁十二局集团第七工程有限公司 | Assembling device for tunnel contact net groove passages |
| EP2783907A1 (en) * | 2013-03-28 | 2014-10-01 | Société Nationale des Chemins de Fer Français - SNCF | System for supporting a catenary |
| CN104790969A (en) * | 2015-03-04 | 2015-07-22 | 中铁二十四局集团福建铁路建设有限公司 | Two-time positioning construction process for pre-buried channels of overhead line system of high-speed railway tunnel |
| CN105463958A (en) * | 2015-12-31 | 2016-04-06 | 中铁二局集团有限公司 | Installation method for conduits of contact rails of magnetism suspension track beams and positioning mold for conduits |
| CN106223975A (en) * | 2016-09-23 | 2016-12-14 | 中国水利水电第四工程局有限公司 | A kind of tunnel overhead contact conduit processing and positioning device |
| CN107175636A (en) * | 2017-06-27 | 2017-09-19 | 中国冶集团有限公司 | A kind of device and method for preventing arc from deforming |
| CN207989073U (en) * | 2017-12-22 | 2018-10-19 | 中铁上海工程局集团有限公司 | A kind of positioning device for railway tunnel contact net curved channel |
-
2017
- 2017-12-22 CN CN201711398508.1A patent/CN109958473A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200954670Y (en) * | 2006-10-09 | 2007-10-03 | 宁波信泰机械有限公司 | Arc-shape strip-like product positioning device |
| EP2783907A1 (en) * | 2013-03-28 | 2014-10-01 | Société Nationale des Chemins de Fer Français - SNCF | System for supporting a catenary |
| CN203211121U (en) * | 2013-05-03 | 2013-09-25 | 中铁十二局集团第七工程有限公司 | Assembling device for tunnel contact net groove passages |
| CN104790969A (en) * | 2015-03-04 | 2015-07-22 | 中铁二十四局集团福建铁路建设有限公司 | Two-time positioning construction process for pre-buried channels of overhead line system of high-speed railway tunnel |
| CN105463958A (en) * | 2015-12-31 | 2016-04-06 | 中铁二局集团有限公司 | Installation method for conduits of contact rails of magnetism suspension track beams and positioning mold for conduits |
| CN106223975A (en) * | 2016-09-23 | 2016-12-14 | 中国水利水电第四工程局有限公司 | A kind of tunnel overhead contact conduit processing and positioning device |
| CN107175636A (en) * | 2017-06-27 | 2017-09-19 | 中国冶集团有限公司 | A kind of device and method for preventing arc from deforming |
| CN207989073U (en) * | 2017-12-22 | 2018-10-19 | 中铁上海工程局集团有限公司 | A kind of positioning device for railway tunnel contact net curved channel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090328A (en) * | 2021-04-09 | 2021-07-09 | 中铁三局集团有限公司 | Positioning device for pre-buried channel of contact net |
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