CN106245601B - A kind of multiple step format vertical-lift headstock gear - Google Patents

A kind of multiple step format vertical-lift headstock gear Download PDF

Info

Publication number
CN106245601B
CN106245601B CN201610840124.XA CN201610840124A CN106245601B CN 106245601 B CN106245601 B CN 106245601B CN 201610840124 A CN201610840124 A CN 201610840124A CN 106245601 B CN106245601 B CN 106245601B
Authority
CN
China
Prior art keywords
gate
guide sleeve
sunpender
equalizer bar
multiple step
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.)
Active
Application number
CN201610840124.XA
Other languages
Chinese (zh)
Other versions
CN106245601A (en
Inventor
曹以南
马仁超
吴德新
陈琪
崔稚
余俊阳
李�荣
李斌
生永贞
王处军
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.)
PowerChina Kunming Engineering Corp Ltd
Original Assignee
PowerChina Kunming Engineering Corp 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 PowerChina Kunming Engineering Corp Ltd filed Critical PowerChina Kunming Engineering Corp Ltd
Priority to CN201610840124.XA priority Critical patent/CN106245601B/en
Publication of CN106245601A publication Critical patent/CN106245601A/en
Application granted granted Critical
Publication of CN106245601B publication Critical patent/CN106245601B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B7/00Barrages or weirs; Layout, construction, methods of, or devices for, making same
    • E02B7/20Movable barrages; Lock or dry-dock gates
    • E02B7/26Vertical-lift gates
    • E02B7/36Elevating mechanisms for vertical-lift gates

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

The invention discloses a kind of multiple step format vertical-lift headstock gears, it is desirable to provide a kind of multiple step format vertical-lift headstock gear of volume compact.It includes at least one sunpender for being used for lift gate, two groups of jack-up hydraulic ram groups being symmetrically arranged on the gate pier of both sides, the equalizer bar being fixedly connected with each piston rod upper end of jack-up hydraulic ram group, two sets are respectively arranged in both sides gate pier upper end and close to the locking device of gate slot, at least a set of locking device for being installed on equalizer bar lower end and the guide sleeve that cooperation is oriented to sunpender;The guide sleeve is fixedly installed on equalizer bar or on gate, and the sunpender passes through guide sleeve and can be moved along guide sleeve, and the suspending head of one end setting and guide sleeve clamping;When guide sleeve is fixedly installed on equalizer bar, the sunpender is fixedly connected with respect to one end of suspending head with gate;When guide sleeve is fixedly installed on gate, the sunpender is fixedly connected with respect to one end of suspending head with equalizer bar.It is convenient that the present invention has many advantages, such as to safeguard and overhaul.

Description

A kind of multiple step format vertical-lift headstock gear
Technical field
The present invention relates to the normal technical fields of power station large size main gate, are opened more particularly, to a kind of multiple step format vertical-lift Close machine.
Background technology
For power station large size main gate frequently with gates of segmental shape, gates of segmental shape, which has, opens and closes laborsaving, reliable, gate slot water Flow the advantages that aerial drainage condition is good when fluidised form is good, part is opened, but there are the spatial position shared by gate is big, branch hinge position stress collection The problems such as middle, causes project playout difficult, is relatively more suitable for high dam.For riverbed gate dam formula power station, dam is shorter, dam body compared with Thin, storage capacity is small, and reservoir without regulating power, often arranges channel of the sluice of big port size as flood discharge sand surfing substantially.It lets out Big vast lock main gate is not only run frequently, but also need to locally open adjusting flow.According to gates of segmental shape as flood discharge work lock Door for the arrangement of gates of segmental shape, needs to increase the width of gate dam and the thickness of gate pier, civilwork engineering quantity is caused to be significantly increased. Using plane gate as flood discharge main gate, the width of gate dam and the thickness of gate pier can be reduced, greatly reduce dam body civil engineering Quantities.But it needs to arrange headstock gear framed bent in dam crest, so that placement operations are put down as flood discharge main gate using plane gate The headstock gear of face main gate.In general, the floodgate size in riverbed gate dam formula power station is larger, corresponding headstock gear framed bent is also very Height, the not only stability of high framed bent is poor, while higher requirement is proposed to dam foundation, therefore is not only reduced using high framed bent The anti-seismic performance of dam greatly increases construction investment, can also increase the arrangement difficulty of equipment using high framed bent.
Invention content
The present invention overcomes the disadvantages of the prior art, provides a kind of easy for installation, and input cost is low and safe Multiple step format vertical-lift headstock gear.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions:
A kind of multiple step format vertical-lift headstock gear, the sunpender for being used for lift gate including at least one, two groups are symmetrically installed In the jack-up hydraulic ram group on the gate pier of both sides, the equalizer bar being fixedly connected with each piston rod upper end of jack-up hydraulic ram group, Two sets are respectively arranged in both sides gate pier upper end and close to the locking device of gate slot, at least a set of locking for being installed on equalizer bar lower end Device and the guide sleeve that cooperation is oriented to sunpender;The guide sleeve is fixedly installed on equalizer bar or on gate, the sunpender It can move across guide sleeve and along guide sleeve, and the suspending head of one end setting and guide sleeve clamping;When guide sleeve is fixedly installed in When on equalizer bar, the sunpender is fixedly connected with respect to one end of suspending head with gate;When guide sleeve is fixedly installed on gate, institute One end that sunpender is stated with respect to suspending head is fixedly connected with equalizer bar.
Preferably, the locking device includes the locking cylinder for being horizontally installed to equalizer bar lower end.
Preferably, the locking device is respectively arranged in gate pier upper end, the track positioned at gate slot both sides including two, under The driving mechanism that the lock ingot beam and driving lock ingot beam of two groups of directive wheels of end setting are moved along track;The lock ingot beam can be caught in In lock ingot platform on gate.
Preferably, the driving mechanism is hydraulic cylinder, and the piston rod of the hydraulic cylinder is connect with lock ingot beam, cylinder Body is fixedly installed in by rack on gate pier.
Preferably, the both ends of the track are both provided with limiting plate.
Preferably, embedded steel tube in the gate pier, the cylinder body of the jack-up hydraulic ram group are stretched into embedded steel tube, and Pass through flanged joint.
Preferably, it is provided with guide sleeve gusset in the external wall of upper portion of the guide sleeve.
Preferably, the sunpender includes boom body, positioned at the suspending head of boom body upper end and positioned at the boom body other end Connecting plate.
Preferably, the equalizer bar includes the crossbeam set along gate widths direction, two horizontal strokes being respectively fixedly connected with Beam both ends form I-shaped longeron with crossbeam;The piston rod of the jack-up hydraulic ram group and the longeron of corresponding side connect.
Compared with prior art, the invention has the advantages that:
For the multiple step format vertical-lift headstock gear of the present invention by equalizer bar, the jacking compositions such as hydraulic cylinder group, locking device can be real Show the unlatching of gate part, standard-sized sheet and be lifted out the functions such as gate slot.The headstock gear promotes tablet with the sunpender substep on bonding gate Gate compared to the stroke that traditional headstock gear saves half, eliminates high framed bent, greatly reduces construction investment, while also carry The high anti-seismic performance of dam.In addition, the headstock gear is arranged in dam facing, full-automatic operation easy to implement, maintenance and maintenance side Just.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below There is attached drawing needed in technology 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 having to pay creative labor, may be used also To obtain other attached drawings according to these attached drawings.
Fig. 1 is the schematic diagram that gate is in water blocking state;
The enlarged drawing of part A in Fig. 2 Fig. 1;
After Fig. 3 is promoted for gate, locking device locks the schematic diagram of gate;
Fig. 4 is that equalizer bar drops to lower position in Fig. 3, and locking cylinder piston rod stretches into the schematic diagram of lifting lug;
Fig. 5 is the schematic diagram that gate goes out gate slot;
Fig. 6 is equalizer bar and the structure chart of partial component;
Fig. 7 is the partial enlarged view of guide sleeve;
Fig. 8 is the structure chart of cover board;
Fig. 9 is the structure chart of sunpender;
Figure 10 is the sectional view of sunpender;
Figure 11 is the structure chart of locking device;
Figure 12 is the installation diagrammatic cross-section for jacking hydraulic cylinder;
Figure 13 is the partial schematic diagram for jacking hydraulic cylinder;
Figure 14 is the structure chart that gate is connect with sunpender;
In figure, 1- equalizer bars, 2- locking devices, 3- jacking hydraulic cylinder groups, 4- sunpenders, 5- gates, 6- cover boards, 7- gate piers, 8- crossbeams, 9- longerons, 10- guide sleeves, 11- locking cylinders, 12- hydraulic power units, 13- horn bodies, 14- tube bodies, 15- guide sleeve muscle Plate, 16- guide plates, 17- axis pins, 18- cover frames, 19- suspending heads, 20- boom bodies, 21- sunpender gussets, 22- connecting plates, 23- add Strong plate, 24- driving mechanisms, 25- lock ingot beams, 26- tracks, 27- limiting plates, 28- racks, 29- embedded steel tubes, 30- flanges, 31- Lock ingot platform, 32- lifting lugs, 33- locking devices.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of not making the creative labor Embodiment shall fall within the protection scope of the present invention.
Multiple step format vertical-lift headstock gear shown in Fig. 1-14, for the lifting of gate 5;It includes two for promoting lock The sunpender 4 of door 5, two groups of jack-up hydraulic ram groups 3 being symmetrically arranged on both sides gate pier 7, each work with jack-up hydraulic ram group 3 The equalizer bar 1 that stopper rod upper end is fixedly connected, two sets are respectively arranged in 7 upper end of both sides gate pier and close to the locking device 2 of gate slot, and two Set is installed on the locking device 33 of 1 lower end of equalizer bar and the guide sleeve 10 of cooperation is oriented to sunpender 4;The guide sleeve 10 is solid Loaded on equalizer bar 1, the sunpender 4 passes through guide sleeve 10 and can be moved along guide sleeve 10, and one end setting and guiding for Dingan County The suspending head 19 of 10 clamping of set;The sunpender 4 is fixedly connected with respect to one end of suspending head with gate 5.
10 top of guide sleeve is in horn body 13, and lower part is in tube body 14;
The locking device 33 includes being horizontally installed to the locking cylinder 11 of 1 lower end of equalizer bar, and when use sets on gate Put the lifting lug with locking cylinder mounting;Obviously other locking devices are may also be, such as manually latches, link up with.
The locking device 2 is respectively arranged in 7 upper end of gate pier, the track 26 positioned at gate slot both sides including two, and lower end is set Put the driving mechanism 24 that the lock ingot beam 25 of two groups of directive wheels and driving lock ingot beam 25 are moved along track 26;In gate during use The lock ingot platform 31 that upper setting is engaged by clamping with lock ingot beam 25.Two groups of directive wheels of 25 lower end of lock ingot beam respectively with homonymy two Rail-guided cooperation.Obvious locking device can also be other structure types, and gate can be lockked by being subject to.
The driving mechanism 24 is hydraulic cylinder, and the piston rod of the hydraulic cylinder is connect with lock ingot beam 25, and cylinder body leads to Rack is crossed to be fixedly installed on gate pier 7.The both ends of the track 26 are both provided with limiting plate 27.Obvious driving mechanism 24 can also It is that the form of motor mate gear rackwork or motor coordinate the common straight line driving mechanisms such as the form of screw.
Embedded steel tube 29 in the gate pier 7, the cylinder body of the jack-up hydraulic ram group 3 are stretched into embedded steel tube 29, and lead to Flange 30 is crossed to connect.Obvious jack-up hydraulic ram group 3 can also use other mounting means.
Further include the cover board 6 of 10 upper end of closing guide sleeve.The cover board 6 is installed on by cover frame 18 on equalizer bar 1, lid Plate 6 is rotatablely connected by axis pin 17 and cover frame.Obviously can also be the upper end that cover board is directly rotationally connected with to guide sleeve 10. Cover board can avoid raindrop erosion guide sleeve 10.Guide sleeve gusset 15 is provided in the external wall of upper portion of the guide sleeve 10.
The sunpender 4 includes boom body 20, positioned at the suspending head 19 of 20 upper end of boom body and positioned at 20 other end of boom body Connecting plate 22.The junction of the connecting plate 22 and boom body 20 is provided with sunpender gusset 21.It is described to hang in order to mitigate weight The body of rod 20 is tubulose, and suspending head is also the hollow body of attached cavity, while by reinforcing plate 23 being set to strengthen it in the cavity of suspending head Intensity.
The equalizer bar 1 includes the crossbeam 8 set along 5 width direction of gate, two 8 liang of crossbeams being respectively fixedly connected with End forms I-shaped longeron 9 with crossbeam 8;The piston rod of the jack-up hydraulic ram group 3 and the longeron 9 of corresponding side connect.
The lower end of the equalizer bar 1 is provided with guide plate 16, the guide plate positioned at the side of 11 piston rod of locking cylinder The through-hole that upper setting is passed through for 11 piston rod of locking cylinder.The guide plate 16 can provide support force for 11 piston rod of locking cylinder, 11 piston rod of locking cylinder is avoided to deform.
It will be apparent that the quantity of the sunpender 4 can reasonably increase and decrease according to design requirement;Locking device 33 may also be suitable When increase and decrease.And the quantity of the present embodiment middle hanger 4 and the quantity of locking device 33 can be ensured that the same of 5 up and down balance system of gate When, using minimum component.
Working condition is as follows:
(1)As shown in Figure 1, when reservoir does not need to flood discharge, gate 5 closes water blocking, and locking device 2 is in releasing orientation, Jacking hydraulic cylinder is in contraction state, and equalizer bar 1 is located at lower position.In horn body in the suspending head of sunpender 4 and guide sleeve 10 Wall is bonded, and cover board covers the top of guide sleeve 10.
(2)When reservoir needs flood discharge, each piston rod for jacking hydraulic cylinder synchronizes upward jacking balance beam 1, equalizer bar 1 to Upper movement, guide sleeve 10 by suspending head drive sunpender 4 in succession move on gate 5 needed for aperture sluice.
(3)As shown in figure 3, need 5 aerial drainage of standard-sized sheet gate when great flood comes, each piston rod synchronization for jacking hydraulic cylinder to Upper jacking balance beam 1, equalizer bar 1 drive and move to locking elevation on gate 5.The driving mechanism 24 of locking device 2 pushes lock later Ingot beam 25 is moved along track 26, and lock ingot beam 25 is made to be caught in the 31 internal lock fixed strobe 5 of lock ingot platform of gate 5.
(4)As illustrated in figures 4-5, when the maintenance of gate 5, which needs to carry gate 5, goes out gate slot, it is then shown in Fig. 3 on the basis of after Continuous action.Hydraulic cylinder is jacked with 1 empty down of equalizer bar to lower position, the guiding of the process middle hanger 4 on equalizer bar 1 It is walked in set 10, gate 5 is locked in by locking device 2 in gate slot.When the lifting lug of the locking cylinder on equalizer bar 1 and gate 5 is accurate Really after contraposition, the piston rod of locking cylinder protrudes into lifting lug, realizes to carry out and wears axis action, at this point, gate 5 and equalizer bar 1 are logical It is integral to cross locking cylinder connection.Then locking device 2 unclamps gate 5, the control jacking upward jacking balance beam of hydraulic cylinder synchronous 1, equalizer bar 1 moves upwards, while locking cylinder gate 5 of ining succession is driven to move up, until gate 5 goes out gate slot.
As the deformation of above-described embodiment, the guide sleeve is fixedly installed on gate, and the sunpender is with respect to suspending head at this time One end be fixedly connected with equalizer bar.The lifting of gate can be realized simultaneously, and the course of work is same as the previously described embodiments.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.

Claims (8)

1. a kind of multiple step format vertical-lift headstock gear, it is characterised in that:The sunpender for being used for lift gate including at least one, two groups The jack-up hydraulic ram group being symmetrically arranged on the gate pier of both sides is fixedly connected with each piston rod upper end of jack-up hydraulic ram group Equalizer bar, two sets are respectively arranged in both sides gate pier upper end and close to the locking device of gate slot, at least a set of to be installed under equalizer bar The locking device at end and the guide sleeve that cooperation is oriented to sunpender;The guide sleeve is fixedly installed on equalizer bar or on gate, The sunpender passes through guide sleeve and can be moved along guide sleeve, and the suspending head of one end setting and guide sleeve clamping;When guide sleeve is consolidated When Dingan County is loaded on equalizer bar, the sunpender is fixedly connected with respect to one end of suspending head with gate;When guide sleeve is fixedly installed in lock When on door, downward, the sunpender is fixedly connected the suspending head of the sunpender with respect to one end of suspending head with equalizer bar;
The locking device is respectively arranged in gate pier upper end, the track positioned at gate slot both sides including two, and lower end sets two groups and leads The driving mechanism that lock ingot beam and driving lock ingot beam to wheel are moved along track;The lock ingot beam can be caught in the lock ingot on gate In platform.
2. multiple step format vertical-lift headstock gear according to claim 1, it is characterised in that:The locking device includes level It is installed on the locking cylinder of equalizer bar lower end.
3. multiple step format vertical-lift headstock gear according to claim 1, it is characterised in that:The driving mechanism is hydraulic oil Cylinder, the piston rod of the hydraulic cylinder are connect with lock ingot beam, and cylinder body is fixedly installed in by rack on gate pier.
4. multiple step format vertical-lift headstock gear according to claim 1, it is characterised in that:The both ends of the track are respectively provided with There is limiting plate.
5. according to any multiple step format vertical-lift headstock gears of claim 1-4, it is characterised in that:It is pre-buried in the gate pier Steel pipe, the cylinder body of the jack-up hydraulic ram group are stretched into embedded steel tube, and pass through flanged joint.
6. according to any multiple step format vertical-lift headstock gears of claim 1-4, it is characterised in that:The guide sleeve it is upper Guide sleeve gusset is provided on portion's outer wall.
7. according to any multiple step format vertical-lift headstock gears of claim 1-4, it is characterised in that:The sunpender includes hanging The body of rod, the suspending head positioned at boom body upper end and the connecting plate positioned at the boom body other end.
8. according to any multiple step format vertical-lift headstock gears of claim 1-4, it is characterised in that:The equalizer bar includes The crossbeam set along gate widths direction, two crossbeam both ends being respectively fixedly connected with form I-shaped longeron with crossbeam;Institute It states the piston rod of jack-up hydraulic ram group and the longeron of corresponding side connects.
CN201610840124.XA 2016-09-21 2016-09-21 A kind of multiple step format vertical-lift headstock gear Active CN106245601B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610840124.XA CN106245601B (en) 2016-09-21 2016-09-21 A kind of multiple step format vertical-lift headstock gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610840124.XA CN106245601B (en) 2016-09-21 2016-09-21 A kind of multiple step format vertical-lift headstock gear

Publications (2)

Publication Number Publication Date
CN106245601A CN106245601A (en) 2016-12-21
CN106245601B true CN106245601B (en) 2018-06-26

Family

ID=57600069

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610840124.XA Active CN106245601B (en) 2016-09-21 2016-09-21 A kind of multiple step format vertical-lift headstock gear

Country Status (1)

Country Link
CN (1) CN106245601B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106702971B (en) * 2017-01-15 2018-10-19 佛山市佛禅健康管理有限公司 A kind of mechanical water valve lock of dam
CN109723040B (en) * 2019-02-28 2023-12-29 黄芳 Hydraulic water gate structure

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57155414A (en) * 1981-03-18 1982-09-25 Hokoku Kogyo Kk Gate device for passing ship
DE19527318C2 (en) * 1994-07-26 1997-12-04 Materiel Securite Urb Lifting device for a dam beam
CN2334799Y (en) * 1998-05-13 1999-08-25 邱宗强 Vertical lifting active type gate open/close machine
CN103362104A (en) * 2012-04-08 2013-10-23 苏振荣 Translational start-stop plane gate system for ship lock
CN203321943U (en) * 2013-05-06 2013-12-04 苏振荣 Plane service gate hydraulic opening and closing device
CN206090484U (en) * 2016-09-21 2017-04-12 中国电建集团昆明勘测设计研究院有限公司 Step by step vertical -lift headstock gear

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57155414A (en) * 1981-03-18 1982-09-25 Hokoku Kogyo Kk Gate device for passing ship
DE19527318C2 (en) * 1994-07-26 1997-12-04 Materiel Securite Urb Lifting device for a dam beam
CN2334799Y (en) * 1998-05-13 1999-08-25 邱宗强 Vertical lifting active type gate open/close machine
CN103362104A (en) * 2012-04-08 2013-10-23 苏振荣 Translational start-stop plane gate system for ship lock
CN203321943U (en) * 2013-05-06 2013-12-04 苏振荣 Plane service gate hydraulic opening and closing device
CN206090484U (en) * 2016-09-21 2017-04-12 中国电建集团昆明勘测设计研究院有限公司 Step by step vertical -lift headstock gear

Also Published As

Publication number Publication date
CN106245601A (en) 2016-12-21

Similar Documents

Publication Publication Date Title
CN102491207B (en) Movable-arm tower crane
CN106012864B (en) A kind of method of the overall erection & lift of bridge arch rib
CN201065511Y (en) Mobile die carrier bridge fabrication machine for thin wall high frusta
CN202451081U (en) Automatic discharge device of racking platform drill pipe
CN206090484U (en) Step by step vertical -lift headstock gear
CN207361651U (en) Aircushion vehicle jack up unit
CN106245601B (en) A kind of multiple step format vertical-lift headstock gear
CN106351180B (en) The all-hydraulic unlatching self-propelled template system of aqueduct
CN109338894B (en) Construction method for pouring wide and narrow box girder by movable formwork
CN108086170A (en) The hole construction method excessively of mobile formwork and mobile formwork
CN208777179U (en) A kind of base-supporting Hanging Basket closure segment traveling and retreat Demolition Construction device
CN205112085U (en) Hydraulic pressure centre form construction system
CN201521111U (en) Cast-in-situ bridge concrete spreader
CN210855047U (en) Be suitable for transmission material between reverse construction method floor with small-size swing arm formula electric hoist
CN209384643U (en) A kind of slip-form lifting device of thin-walled hollow pier stud
CN206970027U (en) Main frame jack up unit
CN206538737U (en) Aqueduct is all-hydraulic to open self-propelled template system
CN207058884U (en) A kind of flexible stock stop of prefabricated tubular pile grouter automatic material blocking device
CN105386461B (en) Reverse mechanical formwork descending system and formwork descending method thereof
CN104179125A (en) Balance beam device for supporting movable formwork main beam
CN209483382U (en) A kind of large space trolley structure for Tunnel Second Lining automatic pouring system
CN210256628U (en) Self-adaptive outer mold system for prefabricating concrete
CN208328720U (en) A kind of Bridge Erector convenient for operation
CN208717748U (en) A kind of large span steel reinforced concrete combination beam Bridge Erector support leg device
CN106592557A (en) Continuous hydraulic inserted pin lifting device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant