CN206174964U - Template landing stage platform truck - Google Patents
Template landing stage platform truck Download PDFInfo
- Publication number
- CN206174964U CN206174964U CN201621113239.0U CN201621113239U CN206174964U CN 206174964 U CN206174964 U CN 206174964U CN 201621113239 U CN201621113239 U CN 201621113239U CN 206174964 U CN206174964 U CN 206174964U
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- CN
- China
- Prior art keywords
- template
- car platform
- access bridge
- landing stage
- trestle
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a template landing stage platform truck, it included car platform, connecting plate, access bridge, portal structure, hoisting accessory, jack -up mechanism, template running gear, form setting frame and platform turning mold board, was provided with connecting plate, access bridge and portal mechanism at the both ends of crossing the car platform, both sides are provided with jack -up mechanism in the middle part of crossing the car platform, are provided with the snubber block at form setting frame and running gear junction, fall into die block board and side form board with platform turning mold board. The utility model discloses a template landing stage platform truck simple structure, compare and promote access bridge convenient stabilizing more in driven landing stage platform truck, access bridge on it can carry out the horizontal hunting, it passes through the tunnel to be convenient for the access bridge, the translation rate of landing stage platform truck in the tunnel has been made things convenient for greatly, the construction period is reduced, can effectually place main landing stage in the jack -up structure of this landing stage platform truck the crooked phenomenon of dead weight appears, influence to the concrete when engineering vehicle passes through reduces to the minimum, this landing stage platform truck is more stable simultaneously, it is bigger to cross the car space.
Description
Technical field
The utility model is related to tunnel construction machinery technical field, more particularly to a kind of template trestle trolley.
Background technology
Tunnel is a kind of special building, and with the raising and the improvement of construction method of design level, tunnel is just increasingly
It is widely used in the every field such as railway, highway, municipal administration, water conservancy.When tunnel construction is carried out, trestle trolley is a kind of
Very important engineering equipment.
But traditional trestle trolley has many drawbacks, in general, access bridge is provided with main trestle both ends, is drawn
Bridge can be rotated upwardly and downwardly, vehicle need by when, access bridge is put down, when trestle trolley needs to move integrally,
Access bridge is lifted, but when tunnel has turnaround section, this chassis movement is very inconvenient, wastes time and energy, because drawing
Bridge cannot swing, and when access bridge is rotated upwardly and downwardly, because access bridge length is long, span is than larger, and heavier-weight,
The method for generally adopting at present is by access bridge jack-up, then by whole platform using the jack-up oil cylinder being placed on moveable equipment
Car is moved, and this method operation is very loaded down with trivial details, is unfavorable for the reduction of erection time, while trestle trolley is long due to length, weight is non-
Chang great, so deadweight bending can be produced, may cause the deformation of trestle trolley after long-time deadweight bending.
The main trestle of trestle trolley included car platform, and mistake car platform is mainly used in engineering truck and passes through, engineering truck matter
Amount is big, and vibrations can be produced when car platform is crossed by main trestle, and due to crossing car platform lower section template walking mechanism is connected with,
And the hoisting mechanism of template walking mechanism and the model sheetinstallat frame for being provided with trolley formwork are attached, the car platform of crossing is produced
Raw vibrations can be directly transferred on trolley formwork, and it is mixed that trolley formwork produces that vibrations will result directly in that vibrations are delivered to below
On solidifying soil, large effect is produced to the quality of concrete.
Utility model content
The purpose of this utility model is to provide a kind of template trestle trolley for the deficiencies in the prior art, the template stack
Abutment bassinet structure is simple, and compared to traditional trestle trolley, lifting access bridge is convenient firm, and access bridge thereon can be carried out
Swing, be easy to access bridge to pass through tunnel bend.Meanwhile, the jack-up structure arranged below the main trestle of the trestle trolley can be with
The phenomenon that deadweight bending occurs in main trestle is effectively placed, when engineering truck passes through, due to the effect of snubber block so that
Impact to concrete is reduced to minimum.
To reach above-mentioned purpose, the utility model is achieved through the following technical solutions.
A kind of template trestle trolley, it included car platform, connecting plate, access bridge, portal-framed structure, boom hoisting, jack-up machine
Structure, template walking mechanism, model sheetinstallat frame and trolley formwork, the connecting plate was respectively hinged at car platform both ends, described
Access bridge was hinged on the connecting plate at car platform two ends；The portal-framed structure was arranged on car Platform center position both sides, its bag
Rack and lifting beam are included, the rack was separately mounted to the relative position of car Platform center position, and the lifting beam is arranged on
Rack top；The boom hoisting is arranged on lifting beam；The jacking mechanism was arranged on car Platform center both lateral sides, its
Including fixed seat and oil cylinder, the fixed seat was packed on car platform, and described oil cylinder one end is arranged in fixed seat, the other end
Stretch out and contacted with ground；The template walking mechanism was arranged on car mesa base, and it includes translation mechanism and lift cylinder, institute
Lift cylinder is stated installed in translation mechanism bottom；The model sheetinstallat frame is arranged on lift cylinder bottom, and it includes crossbeam and stands
Bar, the vertical rod is symmetrically mounted on crossbeam, and model sheetinstallat frame is provided with snubber block with lift cylinder junction；The chassis mould
Plate is arranged on model sheetinstallat frame bottom, and it includes end template and side template, and the side template is respectively hinged at the two ends of end template；
The car platform both sides of crossing are provided with door frame fixed column, and the door frame fixed column side is provided with layback oil cylinder, the layback oil
Cylinder is connected with side template.
Further, the door frame fixed column top offers connecting cavity, and the door frame mechanism is inserted in connecting cavity.
Further, it is described to lift by crane beam end and the oblique frame of support is installed between car platform end excessively.
Further, the boom hoisting is arranged on lifting beam, and it includes electronic lifting cucurbit, hoist cable and suspension hook, institute
Electronic lifting cucurbit is stated on lifting beam, the hoist cable is connected with electronic lifting cucurbit, the suspension hook is connected to hoist cable end
End.
Further, it is hinged with clamping rpole on the suspension hook.
Further, the fixed seat top is also screwed with jacking block.
Further, the vertical rod top offers mounting groove.
Further, the snubber block top surface is connected with lifting arm bottom, and in the mounting groove of vertical rod.
Due to adopting above-mentioned technical proposal, the utility model compared with prior art, template trestle platform of the present utility model
Bassinet structure is simple, convenient firm compared to the trestle trolley lifting access bridge of transmission, due to being provided with door frame in trestle both sides
Structure, the portal-framed structure intensity is high, and the electronic lifting cucurbit on the lifting beam for arranging thereon fast and easily can carry on access bridge
Rise hanging so that trestle trolley is more convenient when walking turning is carried out, also can easily by access bridge after the completion of construction
It is transported on trestle.And access bridge thereon can be swung, it is easy to access bridge by tunnel, greatly facilitates trestle trolley
Translational speed in tunnel, shortens the duration.Meanwhile, the jack-up structure arranged below the main trestle of the trestle trolley can be with
The phenomenon that deadweight bending occurs in main trestle is effectively placed, when engineering truck passes through, due to the effect of snubber block so that
Impact to concrete is reduced to minimum, while the trestle trolley is more stable, crosses car space bigger.
Description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is Tu1Zhong A areas zoomed-in view；
Fig. 3 is along the sectional view in B directions in Fig. 1；
Fig. 4 is snubber block scheme of installation in embodiment；
Fig. 5 is the structural representation of fixed seat and jacking block；
Fig. 6 is the structural representation of oil cylinder.
Legend：1st, car platform is crossed；11st, first step；12nd, second step；13rd, door frame fixed column；131st, connecting cavity；14、
Support oblique frame；141st, brace；142nd, reinforcing bar；15th, layback oil cylinder；16th, cant beam is supported；2nd, connecting plate；21st, lock device；22、
Bearing；23rd, pin rod；3rd, access bridge；4th, portal-framed structure；41st, rack；411st, column；412nd, cross coupling；413rd, cross bar is strengthened；414、
Reinforcing prop；42nd, lifting beam；5th, boom hoisting；51st, electronic lifting cucurbit；52nd, hoist cable；53rd, suspension hook；54th, clamping rpole；6th, jack-up
Mechanism；61st, fixed seat；611st, installing hole；612nd, through hole；613rd, oil cylinder placed cavity；614th, connecting hole；62nd, oil cylinder；621st, install
Frame；622nd, cylinder rod；623rd, cylinder body；624th, base；63rd, jacking block；7th, template walking mechanism；71st, translation mechanism；711st, translation is slided
Wheel；712nd, motor；72nd, lift cylinder；721st, cylinder body；722nd, lifting arm；723rd, mounting blocks；8th, model sheetinstallat frame；81st, it is horizontal
Beam；82nd, vertical rod；821st, mounting groove；83rd, snubber block；9th, trolley formwork；91st, end template；92nd, side template.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
Referring to a kind of template trestle trolley shown in Fig. 1 to Fig. 6, including car platform 1, connecting plate 2, access bridge 3, door frame knot
Structure 4, boom hoisting 5, jacking mechanism 6, template walking mechanism 7, model sheetinstallat frame 8 and trolley formwork 9.Wherein, cross car platform 1 to exist
Both ends are provided with step, and it includes first step 11 and second step 12, and its both sides is additionally provided with door frame fixed column 13, door frame
The top of fixed column 13 offers connecting cavity 131；Connecting plate 2 was connected to car platform by longitudinally disposed lock device 21
1 two ends, it was arranged on the first step 11 of car platform 1, and top surface is concordant with second step 12.Access bridge 3 is laterally hinged with
Cross on the connecting plate 2 at the two ends of car platform 1.Bearing 22 is provided with connecting plate 2, bearing 22 is to be symmetricly set on the end face of connecting plate 2,
Access bridge 3 is mounted on bearing 22 by the hinge of pin rod 23, and every group of bearing 22 includes multiple hinge barrels, makes intensity when being hinged access bridge 3
It is higher.
Portal-framed structure 4 was packed in the door frame fixed column 13 of the both sides of car platform 1, was inserted into the top of door frame fixed column 13
In connecting cavity 131.Portal-framed structure 4 includes rack 41 and lifting beam 42, and 41 points of rack was not vertically arranged on the center two of car platform 1
The relative position of side, lifting beam 42 is arranged on the top of both sides rack 41, forms gantry frame structure；Wherein, due to the weight of access bridge 3
Greatly, in order to keep the intensity of whole trestle trolley and stablize, rack 41 includes column 411 and cross coupling 412, and column 411 sets
Put and crossing the side of car platform 1, cross coupling 412 is arranged between two adjacent columns 411.Preferably, cross coupling 412 is by welding
Piece 413 is welded between column 411.It is also provided with strengthening cross bar 413 between column 411, in the external part of lifting beam 42
The oblique frame 14 of support is connected between portion and the end of mistake car platform 1, for supporting lifting beam 42.Oblique frame 14 is supported to include that two is inclined
Brace 141 and the reinforcing bar 142 being fixed between two braces 141, reinforcing bar 142 is preferably vertical between two braces 141.
In order to further strengthen the intensity of door frame, be also provided with reinforcing prop 414 between oblique frame 14 and lifting beam 42 supporting, the reinforcement
The setting of post 414 supports the strong of oblique frame 14 also for the intensity for strengthening lifting beam 42, the increase that is disposed to of reinforcing bar 142
Degree so that support oblique frame 14 not deform when access bridge 3 are lifted.The other end of lifting beam 42 was connected with car platform 1
Center position and the support cant beam 16 that was fixed on car platform 1, support oblique frame 14 and support cant beam 16 to be effectively increased
The intensity of portal-framed structure 4 so that the lifting beam 42 when hanging holding access bridge 3 of suspension hook 53 will not bend or rupture.
Boom hoisting 5 is arranged on lifting beam 42, and can be moved thereon, boom hoisting 5 include electronic lifting cucurbit 51,
Hoist cable 52 and suspension hook 53.Electronic lifting cucurbit 51 is arranged on lifting beam 42, and hoist cable 52 is connected with electronic lifting cucurbit 51, suspension hook
53 are connected to the end of hoist cable 52.Preferably, the clamping rpole 54 that closing is formed with suspension hook 53 is provided with by torsion spring on suspension hook 53.
During trestle trolley is walked, it may occur that rock, in order that access bridge 3 is without departing from suspension hook 53, so slinging
Clamping rpole 54 is provided with the suspension hook 53 of access bridge 3, the clamping rpole 54 can be automatically reset after hanging holding access bridge 3 by torsion spring, be made
Access bridge 3 is obtained without departing from suspension hook 53.
Preferably, the lock device 21 of connecting plate 2 can be pin rod or screw rod.For screw rod when, lock device 21 can pass through
Nut was fixed on car platform 1.Adopt in this way, first screw out on nut, and lock device 21 is taken out, it is possible to pass through
Whole access bridge 3 is lifted and is placed on trestle and crosses among car platform 1 by electronic lifting cucurbit 51.If tunnel flexibility is excessive, only
Swing access bridge 3 to be also not enough to move whole chassis, it is necessary to lift and move to trestle whole access bridge 3 and cross on car platform 1, make
The length for obtaining whole trestle trolley is reduced, and trestle trolley is moved in tunnel.When lock device 21 is pin rod,
When the turnaround section by tunnel, first access bridge 3 is mentioned using electronic lifting cucurbit 51.Access bridge 3 is to be hinged on connection
On plate 2, can move up and down, connecting plate 2 was connected on car platform 1 by lock device 21, access bridge 3 can be carried out
Swing.According to the situation at tunnel turning, trickle adjustment is carried out to the angle of access bridge 3 or so so as to smoothly by tunnel
Turning.
Jack-up structure 6 is further fixedly arranged on two sides in the middle part of the body of car platform 1 are crossed, jack-up structure 6 includes fixed seat 61
With oil cylinder 62, fixed seat 61 to be packed on car platform 1, preferably through being welded and fixed.Fixed seat 61 is triangle block structure,
Installing hole 611, through hole 612 and oil cylinder placed cavity 613 that it offers successively from top to bottom insertion.Oil cylinder 62 includes installing rack
621st, cylinder rod 622 and cylinder body 623, installing rack 621 is arranged on the one end of cylinder body 623, and spiral shell dress is fixed on the installation of fixed seat 61
In hole 611.Jacking block 63 is also fixed with the top of fixed seat 61, for fixing the oil cylinder 62 during jack-up.The cylinder rod 622 of oil cylinder 62
End bottom is additionally provided with a base 624 to touch with ground, and base 624 is supported on the ground.The utility model exists
The jack-up structure 6 arranged on car platform 1 is crossed, the cylinder rod 623 of wherein oil cylinder 62 can extend downwardly from last support on the ground,
That is when whole jack-up structure 6 jack-up upwards can be prevented car platform 1 from bending due to deadweight by oil cylinder 62.
Template walking mechanism 7 was arranged on the bottom of car platform 1, and template walking mechanism 7 includes translation mechanism 71 and lifts oil
Cylinder 72.The driving electricity that translation mechanism 71 includes the translating pulleys 711 being arranged on car platform 1 and is connected with translating pulleys 711
Machine 712, in the presence of motor 712, translating pulleys 711 can drive translation mechanism 71 to move forward；Lift cylinder 72
The bottom of car platform 1 was vertically installed at, lift cylinder 72 includes cylinder body 721 and lifting arm 722, for lifting trolley formwork 9.
Model sheetinstallat frame 8 is arranged on the bottom of template walking mechanism 7, and the bottom of further lift cylinder 72 is oily with being lifted
The cylinder rod 721 of cylinder 72 connects.Snubber block 83, damping are also equipped with the junction of model sheetinstallat frame 8 and template walking mechanism 7
Block 83 is yielding rubber, and elastomeric material wide material sources are with low cost, it is easy to process.Model sheetinstallat frame 8 includes crossbeam 81 and vertical rod
82, vertical rod 82 is vertically arranged on crossbeam 81.Trolley formwork 9 is arranged on the bottom of model sheetinstallat frame 8, and trolley formwork 9 includes bed die
Plate 91 and the side template 92 for being hinged on its two ends.Layback oil cylinder 15, side are also associated with the door frame fixed column 13 for crossing car platform 1
Drawing oil cylinder 15 is lift cylinder, and layback oil cylinder 15 is connected with side template 92.
The template walking mechanism 7 of the formwork jumbo can after concrete setting sizing, by lift cylinder 72 and
Model sheetinstallat frame 8 raises up trolley formwork 9, makes trolley formwork 9 climb away concrete, and whole template stack is then moved again
Abutment car.In the prior art, the lifting arm 722 of lift cylinder 72 is directly connected to model sheetinstallat frame 8, when engineering and vehicle pass through
When crossing car platform 1, crossing car platform 1 can pass to template walking mechanism 7 by vibrations, and template walking mechanism 7 is by lifting oil
Vibrations are further passed to concrete by cylinder 72, model sheetinstallat frame 8, trolley formwork 9, and the quality for causing concrete is subject to great
Affect, in order to eliminate this impact, the utility model in the lifting arm 722 and model sheetinstallat frame 8 of lift cylinder 72 by setting
Snubber block 83 is put, the snubber block 83 causes the vibrations produced on car platform 1 is crossed in engineering truck greatly to be absorbed, and makes
The quality of concrete is obtained by being affected minimum, while trolley formwork of the present utility model 9 includes end template 91 and is hinged on bottom
The side template 92 of the both sides of template 91, when trestle trolley needs to move forward, first passes through layback oil cylinder 15 and shrinks side form
Plate 92 carries out the demoulding, then end template 91 is carried out into the demoulding by lift cylinder 72, and compared to the monoblock type demoulding, the gradation demoulding makes
Obtain the demoulding more convenient easily, quality of mold release is more preferable.
Further, the top of vertical rod 82 of model sheetinstallat frame 8 offers mounting groove 821, the lifting arm 722 of lift cylinder 72
And snubber block 83 is stretched in mounting groove 821, and then it is attached with model sheetinstallat frame 8.The bottom of lifting arm 722 is provided with peace
Dress block 723, on mounting blocks 723 trapezoid tongue groove is offered, and in the bottom surface of the mounting groove 821 of vertical rod 82 trapezoid tongue groove is also offered,
The top and bottom ends face of snubber block 83 is provided with the trapezoidal tenon matched with trapezoid tongue groove.Lifting arm 722 is directly to pass through snubber block
83 and model sheetinstallat frame 8 be fixedly connected, its type of attachment is to be detachably connected.Certainly, snubber block 83 and lifting arm 722
And the bottom surface of mounting groove 821 can also adopt other types of attachment, such as by attachment screw or steady pin etc..This practicality is new
The lifting arm 722 of type directly gos deep in the mounting groove 821 of vertical rod 82, and the side wall of mounting groove 821 causes the zone of action of lifting arm 722
Limited, so as to difficult for drop-off.
The connecting hole 614 with the connection of jacking block 63 is provided with the top surface of fixed block 61, the both sides of jacking block 63 are provided with and allow
Position groove, resigning groove bottom is also equipped with connecting hole 614, and fixed block 61 is connected with jacking block 63 by connecting hole 614 and screw.
This structure allows jacking block 63 to be quickly assembled in fixed seat 61, can also cause it more convenient when dismounting.
Obviously, above-mentioned embodiment of the present utility model is only intended to clearly illustrate the utility model example,
And it is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, state upper
Can also make other changes in different forms on the basis of bright.Here all of embodiment cannot be given thoroughly
Lift.It is every to belong to the obvious change or change still in the utility model that the technical solution of the utility model extends out
Protection domain row.
Claims (8)
1. a kind of template trestle trolley, it is characterised in that：It included car platform（1）, connecting plate（2）, access bridge（3）, door frame knot
Structure（4）, boom hoisting（5）, jacking mechanism（6）, template walking mechanism（7）, model sheetinstallat frame（8）And trolley formwork（9）, it is described
Connecting plate（2）It was respectively hinged at car platform（1）Both ends, the access bridge（3）It was hinged on car platform（1）The connecting plate at two ends
（2）On；The portal-framed structure（4）It was arranged on car platform（1）Center both sides, it includes rack（41）And lifting beam
（42）, the rack（41）It was separately mounted to car platform（1）The relative position of center, the lifting beam（42）It is arranged on
Rack（41）Top；The boom hoisting（5）Installed in lifting beam（42）On；The jacking mechanism（6）It was arranged on car platform
（1）Central cross both sides, it includes fixed seat（61）And oil cylinder（62）, the fixed seat was packed in car platform（1）On, it is described
Oil cylinder（62）One end is arranged on fixed seat（61）Interior, the other end stretches out and is contacted with ground；The template walking mechanism（7）It is arranged on
Cross car platform（1）Bottom, it includes translation mechanism（71）And lift cylinder（72）, the lift cylinder（72）Installed in translation machine
Structure（71）Bottom；The model sheetinstallat frame（8）Installed in lift cylinder（72）Bottom, it includes crossbeam（81）And vertical rod（82）,
The vertical rod（82）It is symmetrically mounted on crossbeam（81）On, model sheetinstallat frame（8）With lift cylinder（72）Junction is provided with damping
Block（83）；The trolley formwork（9）Installed in model sheetinstallat frame（8）Bottom, it includes end template（91）And side template（92）, institute
State side template（92）It is respectively hinged at end template（91）Two ends；It is described to cross car platform（1）Both sides are provided with door frame fixed column
（13）, the door frame fixed column（13）Side is provided with layback oil cylinder（15）, the layback oil cylinder（15）With side template（92）Even
Connect.
2. template trestle trolley according to claim 1, it is characterised in that：The door frame fixed column（13）Top offers
Connecting cavity（131）, the portal-framed structure（4）It is inserted into connecting cavity（131）It is interior.
3. template trestle trolley according to claim 1, it is characterised in that：The lifting beam（42）End and excessively car platform
（1）Support oblique frame is installed between end（14）.
4. template trestle trolley according to claim 1, it is characterised in that：The boom hoisting（5）Installed in lifting beam
（42）On, it includes electronic lifting cucurbit（51）, hoist cable（52）And suspension hook（53）, the electronic lifting cucurbit（51）Installed in rise
Hanging beam（42）On, the hoist cable（52）With electronic lifting cucurbit（51）Connection, the suspension hook（53）It is connected to hoist cable（52）End.
5. template trestle trolley according to claim 4, it is characterised in that：The suspension hook（53）On be hinged with clamping rpole
（54）.
6. template trestle trolley according to claim 4, it is characterised in that：The fixed seat（61）Top is also screwed with top
Block（63）.
7. template trestle trolley according to claim 1, it is characterised in that：The vertical rod（82）Top offers mounting groove
（821）.
8. template trestle trolley according to claim 7, it is characterised in that：The snubber block（83）Top surface and lifting arm
（722）Bottom connects, and installed in vertical rod（82）Mounting groove（821）It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621113239.0U CN206174964U (en) | 2016-10-12 | 2016-10-12 | Template landing stage platform truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621113239.0U CN206174964U (en) | 2016-10-12 | 2016-10-12 | Template landing stage platform truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206174964U true CN206174964U (en) | 2017-05-17 |
Family
ID=58678757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621113239.0U Withdrawn - After Issue CN206174964U (en) | 2016-10-12 | 2016-10-12 | Template landing stage platform truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206174964U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401606A (en) * | 2016-10-12 | 2017-02-15 | 中电建建筑集团有限公司 | Framework trestle trolley |
-
2016
- 2016-10-12 CN CN201621113239.0U patent/CN206174964U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401606A (en) * | 2016-10-12 | 2017-02-15 | 中电建建筑集团有限公司 | Framework trestle trolley |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170517 Effective date of abandoning: 20180925 |