CN201802410U - Hydraulic self-traveling normal concrete casting trolley for an inclined tunnel - Google Patents
Hydraulic self-traveling normal concrete casting trolley for an inclined tunnel Download PDFInfo
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- CN201802410U CN201802410U CN2010205510510U CN201020551051U CN201802410U CN 201802410 U CN201802410 U CN 201802410U CN 2010205510510 U CN2010205510510 U CN 2010205510510U CN 201020551051 U CN201020551051 U CN 201020551051U CN 201802410 U CN201802410 U CN 201802410U
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- concrete
- sleeper beam
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Abstract
The utility model discloses a hydraulic self-traveling normal concrete casting trolley for an inclined tunnel, which comprises a trolley frame, a lateral wall casing mechanism, a top arch casting mechanism and a hydraulic traveling device which is hinged at the bottom of the trolley frame. The hydraulic traveling device includes a traveling mechanism, a hydraulic cylinder and a locking mechanism, wherein the hydraulic cylinder drives the trolley to move, and the locking mechanism is capable of fixing the trolley. The hydraulic self-traveling normal concrete casting trolley realizes simultaneous operation of normal concrete casting of tunnel lateral walls and pumping casting of top arches, is more convenient in movement of the trolley and stable and reliable in movement of a hydraulic moving device, is especially suitable for complicated tunnel construction conditions, and not only realizes safe and reliable operation of the integral trolley but also realizes fixation of the trolley in casting process as the locking mechanism is fixed onto rail sleeper beams on the ground.
Description
Technical field
The utility model belongs to engineering machinery and makes the field, relates in particular to concrete and builds engineering machinery manufacturing field, and particularly a kind of concrete that carries out concreting in the horizontal tilt tunnel is built chassis.
Background technology
The Hydraulic and Hydro-Power Engineering construction is usually carried out concrete and is built.Usual way is to have carried out concrete to build after having installed and fixed template separately.Raising along with workmanship and rate request, requirement to engineering construction equipment also improves constantly, at present existing constructing tunnel chassis can adopt the pumping concrete to carry out the construction or adopt normal concrete to carry out the side wall construction continuously of limit crown to the tunnel, but also not having to adopt normal concrete to build tunnel side wall and pumping builds crown and carries out the equipment that concrete is built simultaneously, particularly in tiltedly hole tunnel is constructed, the constructing tunnel condition is various, the gradient and crooked tunnel that continuous variation is usually arranged, construction environment and complicated condition, also not having at present can be convenient, safety, the normal concrete that adapts to the various variation in oblique hole is efficiently built equipment automatically.Chinese patent 200920304405.9 discloses and a kind ofly can carry out the tunnel that side wall builds and build chassis.
The travel mechanism of general tunnel chassis adopts the steel wheel on electric power or the direct drive track of motor to move.No matter be that electric power or motor driven all need usually by the actuator drives steel wheel, little in load-bearing, particularly above-mentioned travel mechanism can also be competent at when moving horizontally state.
But it is huge to formwork jumbo weight, usually need under complex situations, construct, when there are situations such as horizontal tilt, bending in construction tunnel, electric power and motor driven chassis can not adapt to the needs of tunneling formwork chassis, have following point: moving of formwork jumbo just just carried out after finishing one section construction, do not need to move at any time; Driving power device need be installed on the chassis, increases chassis weight; Usually occur driving instability under the complicated construction situation, because of chassis need be installed four mobile devices usually, different the moving of each mobile device situation usually can not coordinate to bring potential safety hazard to construction when track moves; The huge chassis of weight does not have and basis, ground stationary device when horizontal tilt state in tunnel is constructed, and slippage is moving after very easily taking place brings potential safety hazard to construction equally.
The utility model content
The utility model discloses the oblique hole of a kind of hydraulic pressure self-propelled normal concrete according to the deficiencies in the prior art and has built chassis.
First problem to be solved in the utility model is to realize that on the one chassis normal concrete builds tunnel side wall and pumping and build crown and carry out simultaneously; Second problem to be solved in the utility model provides a kind of chassis mobile device and moves the safety and the stable problem of appearance to solve chassis; The 3rd problem to be solved in the utility model is the back sliding problem of chassis in oblique hole.
The utility model is achieved through the following technical solutions.
The oblique hole of hydraulic pressure self-propelled normal concrete is built chassis, comprises that chassis vehicle frame and side wall build mechanism, it is characterized in that: also comprise crown build mechanism, with the hinged hydraulic moving device that is arranged on bottom of frame of chassis vehicle frame.
Further described crown is built the hydraulic jack that mechanism is included in crown template, adjustment and the support crown template on vehicle frame top, and hydraulic jack is fixed on the chassis vehicle frame, also comprises concrete pump and concrete conveyance conduit.
Further described side wall is built mechanism and is comprised the side wall template, is fixed on the chassis vehicle frame and adjusts and be connected the concrete batch can with the hydraulic jack of support-side wall form, the reversible rubber conveyer that is installed in chassis vehicle frame top, the slide tube that is installed in reversible rubber conveyer two ends, lifting gear, the lifting gear that is installed on the chassis vehicle frame, lifting gear lifting concrete batch can, discharging is to reversible sealing-tape machine, by reversible sealing-tape machine concrete is delivered in the storehouse number.
Further running gear comprises by be fixed on the walking track on the track sleeper beam, the walking mechanism that moves on the walking track, walking mechanism and chassis bottom of frame crossbeam are hinged, the other end and hydraulic jack are hinged, hydraulic jack is connected with retaining mechanism, retaining mechanism can be fixed on the track sleeper beam and detachably, hydraulic jack provides chassis to move power.
Further another selection of running gear can also comprise by be fixed on the walking track on the track sleeper beam, the walking mechanism that moves on the walking track, walking mechanism and chassis bottom of frame crossbeam are hinged, hydraulic jack is hinged with chassis bottom of frame crossbeam, the other end is connected with retaining mechanism, retaining mechanism can be fixed on the track sleeper beam and detachably, hydraulic jack provides chassis to move power.
Further described track sleeper beam cross section one facade and sleeper beam cross section the angle on plane be not more than 90 degree, retaining mechanism has with the facade and the plane in sleeper beam cross section and cooperates the tight locking button that is used for fixing.
Further described walking mechanism comprises each two cover of walking mechanism that are hinged on chassis vehicle frame front and rear.
The utility model is built mechanism and crown with side wall and is built mechanism and be installed on the same chassis, utilizes pumping respectively and adhesive tape to carry and builds, and has realized carrying out when tunnel side wall and crown are built.
The utility model side wall template is connected with the chassis vehicle frame by hydraulic jack with the crown template, and hydraulic jack is packed up template when mobile trolley used, and chassis can conveniently move; Chassis is when building, and hydraulic jack at first props up lifting plate makes template to building the position, and fixing back hydraulic jack support fixation template realizes concreting.
The utility model hydraulic shifter unit does not have to have alleviated chassis weight on the mounting template chassis, and it is more convenient that chassis is moved; Hydraulic shifter unit utilizes hydraulic piston to promote walking mechanism or directly promotes chassis, move reliable and stable, the utility model has solved especially builds that mechanism is installed on the same chassis and after increasing chassis weight greatly to side wall casting machine structure and crown, mobile security that chassis more needs and fixation problem; Retaining mechanism is fixed on the track sleeper beam on ground, and is safe and reliable.
When needs are mobile trolley used, start two groups of hydraulic shifter units of chassis front portion, fix two groups of hydraulic shifter units at chassis rear portion, after fore two groups of hydraulic shifter units move into place, retighten two groups of hydraulic shifter units at chassis rear portion, start two groups of hydraulic shifter units at chassis rear portion after fixing two groups of hydraulic shifter units of chassis front portion, front and back like this hydraulic shifter unit periodic duty repeatedly makes chassis arrival need the position, fixedly carries out concreting behind the mobile device.
In sum, the utility model has realized that normal concrete builds tunnel side wall and pumping and build crown and carry out simultaneously, chassis moves more convenient, hydraulic shifter unit moves reliable and stable, be particularly suitable for complicated constructing tunnel condition, retaining mechanism is fixed on the track sleeper beam on ground, has both realized the operation that whole chassis is safe and reliable, has realized that again chassis builds the fixing of process.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further specified.
Fig. 1 is the utility model chassis structural representation at the tunnel cross section when the concreting state;
Fig. 2 is the utility model chassis structural representation at the tunnel cross section when mobile status;
Fig. 3 is the utility model chassis side structure schematic diagram;
Fig. 4 is the structural representation of the utility model chassis when heeling condition;
Fig. 5 is a kind of enlarged diagram of implementing state of the utility model travel mechanism, retaining mechanism and track structure;
Fig. 6 is a kind of structure enlarged diagram of the utility model retaining mechanism;
Fig. 7 is the utility model moving track structural representation;
Fig. 8 is the utility model track sleeper beam cross section structure schematic diagram;
Fig. 9 is the enlarged diagram of the another kind of enforcement state of the utility model travel mechanism, retaining mechanism and track structure;
Figure 10 is another enforcement state chassis side structure schematic diagram of the utility model;
Figure 11 is the another kind of structure enlarged diagram of the utility model retaining mechanism.
Among the figure, the 1st, the bottom is very heavy, and the 2nd, lower bolster, the 3rd, adjust oil cylinder, the 4th, the door frame column, the 5th, the door frame diagonal brace, the 6th, support very heavy, the 7th, the door frame column, the 8th, guiding mechanism, the 9th, cope match-plate pattern, the 10th, bracket support, the 11st, carriage crossbeam, the 12nd, carriage column, the 13rd, door frame strut, the 14th, position-limited rack, the 15th, the perpendicular support of door frame, the 16th, working platform, the 17th, door frame stull, the 18th, traversing pull bar, the 19th, door frame crossbeam, the 20th, top template, the 21st, door frame diagonal member, the 22nd, door frame diagonal member, the 23rd, door frame drag link, the 24th, hoist engine, the 25th, guiding device, the 26th, pallet stringer, the 27th, pulley gear, the 28th, pulley guide rails, the 29th, electric block, the 30th, carriage saddle beam, the 31st, position-limited rack, the 32nd, door frame pushes away beam, the 33rd, door frame bottom girder, the 34th, road wheel structure, the 35th, pipe bending cylinder, the 36th, pushing tow bearing, 36a are tight locking buttons, and 36b is a joint pin, the 37th, jacking cylinder, the 38th, chock, b1 are traveling steel rails, b2 is the track sleeper beam, and b2.1 is a track sleeper beam facade, and b2.2 is track sleeper beam plane.
The specific embodiment
Below in conjunction with embodiment the utility model is further specified.Embodiment is used to illustrate the utility model, limits the utility model never in any form.
Fig. 1 is the utility model chassis structural representation at the tunnel cross section when the concreting state, and Fig. 2 is the utility model chassis structural representation at the tunnel cross section when mobile status, and Fig. 3 is the utility model chassis side structure schematic diagram.
As Fig. 1, Fig. 2, shown in Figure 3, the oblique hole of hydraulic pressure self-propelled normal concrete is built chassis and is comprised that vehicle frame and side wall build mechanism, also comprise crown build mechanism, with the hinged hydraulic moving mechanism that is arranged on bottom of frame of chassis vehicle frame.
Vehicle frame partly is made up of door frame column 4,7, door frame diagonal brace 5, door frame strut 13, the perpendicular support 15 of door frame, door frame stull 17, door frame crossbeam 19, door frame diagonal member 21,22, door frame drag link 23 etc.
The side wall pouring structure comprises side wall template 9, be fixed on the chassis vehicle frame and the hydraulic jack 3 of adjustment and support-side wall form, supporting very heavy 6 also plays a supportive role to template 9, be installed in the reversible rubber conveyer on chassis vehicle frame top, be installed in the slide tube at reversible rubber conveyer two ends, be installed in the lifting gear on the chassis vehicle frame, lifting gear connects the concrete batch can, lifting gear lifting concrete batch can, discharging is to reversible sealing-tape machine, by reversible sealing-tape machine concrete is delivered in the storehouse number, its structure is similar to Chinese patent application 200920304405.9.
Crown is built the hydraulic jack that mechanism is included in crown template 20, the adjustment on vehicle frame top and supports the crown template, and hydraulic jack is fixed on the chassis vehicle frame, also comprises concrete pump and concrete conveyance conduit.Concrete pump and concrete conveyance conduit are this area common apparatus, can move freely, and it is placed in builds the position, and concrete is pumped to the pouring area that the crown template constitutes with the concrete pump by conveyance conduit.
Fig. 5 is a kind of enlarged diagram of implementing state of the utility model travel mechanism, retaining mechanism and track structure, Fig. 6 is a kind of structure enlarged diagram of the utility model retaining mechanism, Fig. 7 is the utility model moving track structural representation, and Fig. 8 is the utility model track sleeper beam cross section structure schematic diagram.
The concreting chassis mainly is made up of steel work, its weight is bigger, weight significantly increases after template and ancillary service have been installed, the safety of building chassis is important problems, particularly side wall is built to build with crown and become one, the weight increase is very big, if construct at complex environment again, as the tunnel that tilts, curved tunnels, the safety of chassis even can operate as normal all be the problem that must pay attention to.What safety was primary is to move and fixation problem.
As Fig. 5, Fig. 6, Fig. 7, shown in Figure 8.Hydraulic pressure travel mechanism comprises by be fixed on the walking track on the track sleeper beam, the walking mechanism that moves on the walking track, walking mechanism and chassis bottom of frame crossbeam are hinged, hydraulic jack is hinged with chassis bottom of frame crossbeam, the other end is connected with retaining mechanism, retaining mechanism can be fixed on the track sleeper beam and detachably, hydraulic jack provides chassis to move power.
Track sleeper beam cross section one facade and sleeper beam cross section the angle on plane be not more than 90 degree, retaining mechanism has with the facade and the plane in sleeper beam cross section and cooperates the tight locking button that is used for fixing.Walking mechanism comprises each two cover of walking mechanism that are hinged on chassis vehicle frame front and rear.
As shown in the figure, moving track comprises track b1, track sleeper beam b2, track foundation, track b1 is at first by on the conventional method trapped orbit sleeper beam b2, for firm stable more under the condition of horizontal tilt again, at track b1 and the anterior junction of track sleeper beam b2 one track clip is arranged, the track clip plays fixing-stable track b1 with track b1 welding is fixing with track sleeper beam b2; The cross section of track sleeper beam b2 is a trapezium structure, wherein a facade b2.1 and sleeper beam cross section the angle of plane b2.2 be not more than 90 degree, be generally less than 90 degree and can play better barrier effect.Road wheel structure 34 is made up of steel wheel and steel wheel bracing frame, and the steel wheel bracing frame is connected the support chassis by support platform and moves with chassis, and steel wheel and steel wheel bracing frame constitute routinely; Hydraulic cylinder piston and pallet bottom brace table are hinged, and the promotion chassis that stretches out of piston moves; Oil cylinder 35 is connected with retaining mechanism 36, retaining mechanism 36 has one with the sleeper beam cross section with cooperate the tight locking button 36a that is used for fixing, tight locking button 36a one has the retention device of curved-surface structure, its curved surface is identical with the blocking surface shape in sleeper beam cross section, under the effect of whole chassis and own wt, be buckled in the track sleeper beam and stop that chassis moves down, can also increase the fixedly safety of chassis of bolt fixed mode increase at retaining mechanism 36 and track sleeper beam b2 joint portion.
When needs are mobile trolley used, start two groups of hydraulic shifter units of chassis front portion, fix two groups of hydraulic shifter units at chassis rear portion, after fore two groups of hydraulic shifter units move into place, retighten two groups of hydraulic shifter units at chassis rear portion, after fixing two groups of hydraulic shifter units of chassis front portion, start two groups of hydraulic shifter units at chassis rear portion, so hydraulic shifter unit repeatedly periodic duty chassis is arrived need the position, carry out concreting after fixedly moving forward and backward device.
Hydraulic shifter unit does not have to have alleviated chassis weight on the mounting template chassis, and it is more convenient that chassis is moved; Hydraulic shifter unit utilizes the stable walking mechanism that promotes of hydraulic piston, when promoting because of the cylinder structure characteristics, oil cylinder itself can energy of retraction guarantee the stability and safety of chassis when abnormal conditions occurring, and move reliable and stable, retaining mechanism is fixed on the track sleeper beam on ground, has more increased the safety of total system.
In mobile trolley used process, the method that the hydraulic shifter unit intersection moves before and after adopting, one group is moved, and one group of backup is fixing, strengthens the safety of total system greatly, and this also is one of significant advantage of native system.
In sum, the oblique hole of hydraulic pressure self-propelled normal concrete is built chassis and side wall in the constructing tunnel is built normal concrete and crown is built pumping concrete one and realize on a chassis simultaneously; Particularly in tiltedly hole tunnel is constructed, because the tunnel gradient constantly changes, construction environment and complicated condition, lateral bolster support of the present utility model and hydraulic pressure travel mechanism have adapted to the construction needs well, the lateral bolster support has been fixed whole chassis safely, make construction safety that assurance arranged, and installation conveniently moving, hydraulic pressure travel mechanism is safe and reliable when mobile trolley used, be particularly suitable for the moving of chassis of certain altitude and weight, no matter at straight line or stable in moving process at curved section and other complicated location, and hydraulic jack has also played the effect of supporting chassis in promoting the chassis process, relatively the motorized stage bassinet structure can only move at adit, and the utility model hydraulic pressure travel mechanism compliance is wider, more controlled, safer.
Side wall was built normal concrete and crown and is built the continuous one concrete of pumping concrete and build when the utility model can be implemented in the tunnel concrete pouring construction, particularly when the oblique hole tunnel of complexity was constructed, the hydraulic pressure of the utility model safe ready moved with fastening devices and has improved construction safety and efficient.
In conjunction with Fig. 1, Fig. 2, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11.
Identical with embodiment 1 other mechanisms, different structure is: chassis hydraulic moving device is by be fixed on the walking track on the track sleeper beam, the walking mechanism that moves on the walking track, walking mechanism and chassis bottom of frame crossbeam are hinged, the other end and hydraulic jack are hinged, hydraulic jack is connected with retaining mechanism, retaining mechanism can be fixed on the track sleeper beam and detachably, hydraulic jack provides chassis to move power.
As shown in the figure, moving track comprises track b1, track sleeper beam b2, track foundation, track b1 is at first by on the conventional method trapped orbit sleeper beam b2, for firm stable more under the condition of horizontal tilt again, at track b1 and the anterior junction of track sleeper beam b2 one track clip is arranged, the track clip plays fixing-stable track b1 with track b1 welding is fixing with track sleeper beam b2; The cross section of track sleeper beam b2 is a trapezium structure, wherein a facade b2.1 and sleeper beam cross section the angle of plane b2.2 be not more than 90 degree, be generally less than 90 degree and can play better barrier effect.Road wheel structure 34 is made up of steel wheel and steel wheel bracing frame, and the steel wheel bracing frame is connected the support chassis by support platform and moves with chassis, and steel wheel and steel wheel bracing frame constitute routinely; One end of steel wheel bracing frame is connected with oil cylinder 35 pistons, the promotion walking of stretching out of piston is moved, oil cylinder 35 is connected with retaining mechanism 36, retaining mechanism 36 has one with the sleeper beam cross section with cooperate the tight locking button 36a that is used for fixing, tight locking button 36a one has the retention device of curved-surface structure, its curved surface is identical with the blocking surface shape in sleeper beam cross section, under the effect of whole chassis and own wt, be buckled in the track sleeper beam and stop that chassis moves down, can also increase the fixedly safety of chassis of bolt fixed mode increase at retaining mechanism 36 and track sleeper beam b2 joint portion.
The way of propelling is identical with embodiment 1 with the snap close mode.
Claims (7)
1. the oblique hole of hydraulic pressure self-propelled normal concrete is built chassis, comprises that chassis vehicle frame and side wall build mechanism, it is characterized in that: also comprise crown build mechanism, with the hinged hydraulic moving device that is arranged on bottom of frame of chassis vehicle frame.
2. the oblique hole of hydraulic pressure self-propelled according to claim 1 normal concrete is built chassis, it is characterized in that: described crown is built the hydraulic jack that mechanism is included in crown template, adjustment and the support crown template on vehicle frame top, hydraulic jack is fixed on the chassis vehicle frame, also comprises concrete pump and concrete conveyance conduit.
3. the oblique hole of hydraulic pressure self-propelled according to claim 1 normal concrete is built chassis, it is characterized in that: described side wall is built mechanism and is comprised the side wall template, is fixed on the chassis vehicle frame and adjusts and be connected the concrete batch can with the hydraulic jack of support-side wall form, the reversible rubber conveyer that is installed in chassis vehicle frame top, the slide tube that is installed in reversible rubber conveyer two ends, lifting gear, the lifting gear that is installed on the chassis vehicle frame, lifting gear lifting concrete batch can, discharging is to reversible sealing-tape machine, by reversible sealing-tape machine concrete is delivered in the storehouse number.
4. the oblique hole of hydraulic pressure self-propelled according to claim 1 normal concrete is built chassis, it is characterized in that: described running gear comprises by be fixed on the walking track on the track sleeper beam, the walking mechanism that moves on the walking track, walking mechanism and chassis bottom of frame crossbeam are hinged, the other end and hydraulic jack are hinged, hydraulic jack is connected with retaining mechanism, retaining mechanism can be fixed on the track sleeper beam and detachably, hydraulic jack provides chassis to move power.
5. the oblique hole of hydraulic pressure self-propelled according to claim 1 normal concrete is built chassis, it is characterized in that: described running gear comprises by be fixed on the walking track on the track sleeper beam, the walking mechanism that moves on the walking track, walking mechanism and chassis bottom of frame crossbeam are hinged, hydraulic jack is hinged with chassis bottom of frame crossbeam, the other end is connected with retaining mechanism, retaining mechanism can be fixed on the track sleeper beam and detachably, hydraulic jack provides chassis to move power.
6. build chassis according to each oblique hole of described hydraulic pressure self-propelled normal concrete of claim 1 to 5, it is characterized in that: described track sleeper beam cross section one facade and sleeper beam cross section the angle on plane be not more than 90 degree, retaining mechanism has with the facade and the plane in sleeper beam cross section and cooperates the tight locking button that is used for fixing.
7. build chassis according to each oblique hole of described hydraulic pressure self-propelled normal concrete of claim 1 to 5, it is characterized in that: described walking mechanism comprises each two cover of walking mechanism that are hinged on chassis vehicle frame front and rear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205510510U CN201802410U (en) | 2010-10-02 | 2010-10-02 | Hydraulic self-traveling normal concrete casting trolley for an inclined tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205510510U CN201802410U (en) | 2010-10-02 | 2010-10-02 | Hydraulic self-traveling normal concrete casting trolley for an inclined tunnel |
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| Publication Number | Publication Date |
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| CN201802410U true CN201802410U (en) | 2011-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205510510U Expired - Lifetime CN201802410U (en) | 2010-10-02 | 2010-10-02 | Hydraulic self-traveling normal concrete casting trolley for an inclined tunnel |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943004A (en) * | 2010-10-02 | 2011-01-12 | 中国水利水电第七工程局有限公司 | Hydraulic self-running inclined-hole ordinary-state concrete casting trolley |
| CN104153791A (en) * | 2014-08-11 | 2014-11-19 | 中铁建大桥工程局集团第六工程有限公司 | Assembly trolley for prefabricated assembly type subway station |
| CN106761826A (en) * | 2016-12-23 | 2017-05-31 | 湖南五新隧道智能装备股份有限公司 | A kind of minitunnel lining trolley |
-
2010
- 2010-10-02 CN CN2010205510510U patent/CN201802410U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943004A (en) * | 2010-10-02 | 2011-01-12 | 中国水利水电第七工程局有限公司 | Hydraulic self-running inclined-hole ordinary-state concrete casting trolley |
| CN104153791A (en) * | 2014-08-11 | 2014-11-19 | 中铁建大桥工程局集团第六工程有限公司 | Assembly trolley for prefabricated assembly type subway station |
| CN106761826A (en) * | 2016-12-23 | 2017-05-31 | 湖南五新隧道智能装备股份有限公司 | A kind of minitunnel lining trolley |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110420 Effective date of abandoning: 20130306 |
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| RGAV | Abandon patent right to avoid regrant |