CN110820557A - Steel truss arch bridge maintenance car - Google Patents
Steel truss arch bridge maintenance car Download PDFInfo
- Publication number
- CN110820557A CN110820557A CN201911277421.8A CN201911277421A CN110820557A CN 110820557 A CN110820557 A CN 110820557A CN 201911277421 A CN201911277421 A CN 201911277421A CN 110820557 A CN110820557 A CN 110820557A
- Authority
- CN
- China
- Prior art keywords
- fixed
- operation platform
- rod
- arch bridge
- fixing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 21
- 239000010959 steel Substances 0.000 title claims abstract description 21
- 238000012423 maintenance Methods 0.000 title abstract description 18
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 10
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 10
- 241001330002 Bambuseae Species 0.000 claims description 10
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 10
- 239000011425 bamboo Substances 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 10
- 230000001012 protector Effects 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims 5
- 230000000087 stabilizing effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/106—Movable inspection or maintenance platforms, e.g. travelling scaffolding or vehicles specially designed to provide access to the undersides of bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D4/00—Arch-type bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D6/00—Truss-type bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a steel truss arch bridge overhaul vehicle which comprises a fixed base, an operation platform, a fixing device and a protection device, wherein the fixed base is hinged with a telescopic support, the top of the telescopic support is connected to the bottom of a bearing plate through two groups of bearing blocks by bolts, the top of the bearing plate is fixedly welded with the operation platform, the protection device is arranged on the side wall of the top of the operation platform, two groups of sliding grooves are formed in the two side walls of the fixed base, the two groups of sliding grooves are respectively arranged at the front end and the rear end of the side wall of the fixed base, sliding rods are connected in the sliding grooves in a sliding mode, one ends of the sliding rods extend to the outside of the fixed base, one sides of the tops of the sliding rods. The steel truss arch bridge maintenance vehicle is simple in structure, good in stabilizing effect and high in practicability.
Description
Technical Field
The invention belongs to the technical field of maintenance vehicles, and particularly relates to a steel truss arch bridge maintenance vehicle.
Background
An arch bridge refers to a bridge having an arch as the primary load bearing member of the structure in a vertical plane. The arch bridge is an upward convex curved surface, the maximum main stress acts along the curved surface of the arch bridge, and the minimum main stress along the vertical direction of the arch bridge is zero; along with the rapid development of economy, the river-crossing bridge is more and more, carries out all-round, full three-dimensional detection and maintenance to the bridge, just at this moment just needs to use the maintenance car, and current truss arch bridge beam maintenance car when using, because can not guarantee its stability, influences maintainer safety work.
Therefore, in order to meet the current situation, the steel truss arch bridge maintenance vehicle needs to be designed and produced urgently so as to meet the actual use requirement.
Summary of the invention
The invention aims to provide a steel truss arch bridge maintenance vehicle to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a steel truss arched bridge tool car, includes operation platform, unable adjustment base, operation platform passes through telescopic bracket and installs on unable adjustment base, operation platform is equipped with protector all around, the unable adjustment base bottom is equipped with the wheel that rolls, and a guiding hole has been seted up respectively at respective preceding, rear end position department horizontal direction to this unable adjustment base left and right lateral wall, and slidable mounting has the slide bar in this guiding hole, the slide bar outer end is provided with fixing device, unable adjustment base is equipped with the retaining member fixed to slide bar locking.
Further, fixing device includes fixed block, a fixed section of thick bamboo, threaded rod and fixed disk, and a fixed section of thick bamboo fixed mounting is in the fixed orifices that the slide bar matches, a fixed section of thick bamboo is the screw sleeve, the threaded rod matches and installs in this fixed section of thick bamboo, and a fixed section of thick bamboo is stretched out at this threaded rod both ends, and this threaded rod top is fixed with the fixed block, the fixed disk is fixed in this threaded rod bottom.
Further, the locking member is a locking bolt.
Furthermore, the protection device comprises a protection net and a fixing mechanism matched with the protection net, the fixing mechanism comprises a plurality of fixing rods which are arranged around the operation platform and are respectively arranged along the radial direction of the operation platform, the inner ends of the fixing rods are connected to the circumferential surface of the operation platform, the outer ends of the fixing rods are provided with a twisted rod which is inclined upwards at the outer side of the fixing rods, the protection net is arranged around the operation platform, and the protection net is fixed on the fixing rods and the twisted rods.
Furthermore, the protective net is a flexible protective net, the inner end of each fixed rod is hinged to the circumferential surface of the operation platform, a plurality of sliding grooves corresponding to the fixed rods are arranged in the circumferential surface of the operation platform in the vertical direction, the bottom ends of the sliding grooves are closed, sliding blocks are arranged in the sliding grooves in a sliding mode, and inclined pull rods are hinged between the sliding blocks and the corresponding fixed rods;
the top end of the twisting rod is provided with a fixing mechanism which is folded upwards and is fixed with a through hole for locking through a screw and the top surface of the operation platform.
Furthermore, the telescopic support is a scissor-fork type telescopic support, and the telescopic support is matched with an electric telescopic rod.
The invention has the technical effects and advantages that: according to the steel truss arch bridge maintenance vehicle, the fixing block is rotated by the aid of the arranged fixing device, the fixing block drives the threaded rod to move downwards along the fixing cylinder, the fixing disc is enabled to be abutted against the ground, stability of maintenance personnel during working is guaranteed, and safety of maintenance is improved; through the arranged protection mechanism, the protection mechanism can prevent the object on the operation platform from falling and smashing the person below, so that other persons can be protected, and the safety protection effect is improved as well; the telescopic bracket is driven to extend up and down through the arranged electric telescopic rod, so that maintenance personnel can conveniently maintain positions with different heights; the steel truss arch bridge maintenance vehicle is simple in structure, good in stabilizing effect and high in practicability.
Drawings
FIG. 1 is a front view of the invention;
FIG. 2 is a top view of the inventive work platform;
FIG. 3 is a schematic structural diagram of the fixing device of the present invention;
FIG. 4 is an enlarged view A of FIG. 1;
fig. 5 is a view showing a state where the protection net is retracted.
In the figure: 1-fixing a base; 2-a telescopic bracket; 3-a working platform; 31-a chute; 4, an electric telescopic rod; 5-a fixing device; 51-fixing block; 52-a stationary cylinder; 53-threaded rod; 54-fixing disc; 6-a guard device; 61-a fixing rod; 62-diagonal draw bars; 63-a twisting rod; 64-a steel wire rope; 65-a protective net; 66-a slide block; 7-a bearing plate; 8-a rolling wheel; 9-connecting pieces; 10-a slide bar; 11-a locking member; 12-screws.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort belong to the protection scope of the present invention.
Unless defined otherwise, all references herein to upper, lower, left, right, front, rear, inner and outer, etc., are to be construed as referring to the upper, lower, left, right, front, rear, inner and outer, etc., of the drawings that are shown in the present disclosure and are hereby incorporated herein by reference.
The steel truss arch bridge overhaul vehicle comprises a fixed base 1, an operation platform 3, a fixing device 5 and a protection device 6, wherein two groups of connecting sheets 9 are fixedly welded on the periphery of the bottom of the fixed base 1, rolling wheels 8 are movably connected between the two groups of connecting sheets 9 through rotating shafts, two groups of mounting blocks are bolted on the top of the fixed base 1, a telescopic support 2 is hinged on the two groups of mounting blocks, the top of the telescopic support 2 is bolted on the bottom of a bearing plate 7 through two groups of bearing blocks, the operation platform 3 is fixedly welded on the top of the bearing plate 7, the operation platform 3 is of a circular truncated cone structure, the protection device 6 is arranged on the top of the side wall of the operation platform 3, guide holes are respectively formed in the horizontal directions of the front position and the rear position of the left side wall and the right side wall of the fixed base 1, and sliding rods 10 are slidably mounted in the guide, the outer end of the sliding rod 10 extends out of the fixing base 1 and then is provided with a fixing device 5, and the inside of the sliding rod 10 is fixed in the guide hole through a locking piece 11. In this embodiment, the locking member 11 is a locking bolt structure, the locking member 11 is threadedly mounted on the fixing base 1, and the inner end of the locking member 11 extends into the guide hole and abuts against the sliding rod 10.
Specifically, fixing device 5 includes fixed block 51, a fixed cylinder 52, threaded rod 53 and fixed disk 54, the fixed orifices has been seted up to the vertical direction in slide bar 10 outer end, fixed cylinder 52 fixed mounting is in the fixed orifices, fixed cylinder 52 is the screw sleeve, and threaded rod 53 matches the screw thread and installs in this fixed cylinder 52, and fixed cylinder 52 is extended at threaded rod 53 both ends, and fixed welded block 51 in this threaded rod 53 top, threaded rod 53 bottom mounting welded fixed disk 54.
Specifically, the protection device 6 includes a protection net 65 and a fixing mechanism matched with the protection net 65, the fixing mechanism includes a plurality of fixing rods 61 arranged around the work platform 3 and respectively arranged along the radial direction of the work platform 3, the inner ends of the fixing rods 61 are connected to the circumferential surface of the work platform 3, the outer ends of the fixing rods 61 are provided with a hinge rod 63 inclined upwards to the outer side of the fixing rod 61, the protection net 65 is arranged around the work platform 3, and the protection net 65 is fixed on the plurality of fixing rods 61 and the plurality of hinge rods 63. In this embodiment, the protection net 65 includes a circular ring portion horizontally disposed and an upright surrounding portion obliquely disposed upward along the outer side edge of the circular ring portion, the circular ring portion is fixedly mounted on the plurality of fixing rods 61, and the upright surrounding portion is fixedly mounted on the plurality of twisting rods 63, so as to mount the protection net 65. The protection network is used for preventing that thing on the work platform from dropping and pounding the people below, can protect other personnel like this, also the same effect that improves safety protection.
In this embodiment, when the maintenance vehicle is in a non-operating state, in order to pack and place the protection net, the protection net 65 is a flexible protection net, the inner end of each fixing rod 61 is hinged to the circumferential surface of the operation platform 3, a plurality of sliding grooves 31 corresponding to one fixing rod 61 are arranged in the vertical direction of the circumferential surface of the operation platform 3, as shown in fig. 4, the bottom ends of the sliding grooves 31 are closed, sliding blocks 66 are arranged in the sliding grooves in a sliding manner, oblique pull rods 62 are hinged between the sliding blocks 66 and the corresponding fixing rods 61, and when the sliding blocks move to the bottom ends of the sliding grooves, the positions of the fixing rods 61 are horizontally. The hinge bar 63 is hinged to the corresponding fixing rod 61, the hinge bar 63 is fixed to the corresponding fixing rod 61 through the tensioning of the steel wire rope 64, the hinge bar 63 is in an inclined supporting state that the top end inclines outwards when the fixing rod 61 is in a horizontal fixing state, the protective net is opened at the moment, articles falling off during maintenance are stored, and the articles are prevented from falling off and injuring people at will. In this embodiment, the top end of each hinge rod 63 is provided with a through hole for fixing and locking the fixing mechanism after being folded upwards and the top surface of the operation platform 3 by a screw, and the top surface of the operation platform 3 is provided with a plurality of threaded holes corresponding to one hinge rod 63. The hinge structure realizes the function that the fixing mechanism can be folded towards the working platform 3, the folded protective net 65 is folded, the structure diagram is shown in fig. 5, and after folding, the screw 12 is used for fixing the hinge rod 63 on the top surface of the working platform 3.
Specifically, in this embodiment, the telescopic bracket 2 is a scissor-fork type telescopic bracket, and the telescopic bracket 2 is matched with an electric telescopic rod 4.
Concretely, this steel truss arch bridge overhaul car, when using, at first remove the device to the place that needs the maintenance, then take four sets of slide bars 10 out corresponding length, it is fixed with slide bar 10 to recycle the locking bolt, then rotating fixed block 51, fixed block 51 drives threaded rod 53 and carries out downstream along a fixed cylinder 52, and make fixed disk 54 conflict ground, the stability of the device has been guaranteed, start electric telescopic handle 4 after that, the height of overhauing as required, adjust work platform 3's height through telescopic bracket 2. The screws 12 are loosened, the sliding blocks 66 move downwards, the protective net is opened, and in the overhauling process, the protective device 6 prevents the objects on the working platform 3 from falling down and smashing people below, so that other people can be protected. After the overhaul is completed, the fixing mechanism is folded towards the operation platform 3 until the twisting rod 63 is attached to the top surface of the operation platform 3, the twisting rod 63 is locked and fixed on the operation platform 3 by using the screw 12, and the protective net 65 is folded at the moment.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (6)
1. The utility model provides a steel truss arch bridge tool car which characterized in that: including operation platform (3), unable adjustment base (1), operation platform (3) are the round platform structure, and this operation platform (3) are installed on unable adjustment base (1) through telescopic bracket (2), operation platform (3) are equipped with protector (6) all around, unable adjustment base (1) bottom is equipped with roll wheel (8), and a guiding hole has been seted up respectively to this unable adjustment base (1) left and right side wall in front, rear end position department horizontal direction separately, and slidable mounting has slide bar (10) in this guiding hole, slide bar (10) outer end is provided with fixing device (5), unable adjustment base (1) is equipped with locking fixed retaining member (11) to slide bar (10).
2. The steel truss arch bridge inspection vehicle of claim 1, wherein: fixing device (5) are including fixed section of thick bamboo (52) and threaded rod (53), and fixed section of thick bamboo (52) fixed mounting in the fixed orifices that slide bar (10) match, fixed section of thick bamboo (52) are the screw sleeve, threaded rod (53) match and install in fixed section of thick bamboo (52), and fixed section of thick bamboo (52) are stretched out at this threaded rod (53) both ends, and this threaded rod (53) top is fixed with fixed block (51), and this threaded rod (53) bottom is fixed with fixed disk (54).
3. The steel truss arch bridge inspection vehicle of claim 1, wherein: the locking piece (11) is a locking bolt.
4. The steel truss arch bridge inspection vehicle of claim 1, wherein: protection device (6) are including protection network (65) and the fixed establishment who matches thereof, fixed establishment includes around work platform (3) arrange, respectively along several dead lever (61) of work platform (3) radial setting, and dead lever (61) inner is connected on work platform (3) periphery, and dead lever (61) outer end is equipped with earlier on this dead lever (61) outside top slope's hinge pole (63), protection network (65) set up around work platform (3), and this protection network (65) are fixed on several dead lever (61) and several hinge pole (63).
5. The steel truss arch bridge inspection vehicle of claim 4, wherein: the protective net (65) is a flexible protective net, the inner end of each fixing rod (61) is hinged to the circumferential surface of the operation platform (3), a plurality of sliding grooves (31) which respectively correspond to one fixing rod (61) are arranged in the vertical direction of the circumferential surface of the operation platform (3), the bottom ends of the sliding grooves (31) are closed, sliding blocks (66) are arranged in the sliding grooves in a sliding mode, and inclined pull rods (62) are hinged between the sliding blocks (66) and the corresponding fixing rods (61);
the hinge rod (63) is hinged with the corresponding fixing rod (61), the hinge rod (63) is tensioned and fixed on the corresponding fixing rod (61) through a steel wire rope (64), and the top end of the hinge rod (63) is provided with a fixing mechanism which is folded upwards and is fixed and locked through a screw and a through hole for fixing and locking the top surface of the operation platform (3).
6. The steel truss arch bridge inspection vehicle of claim 1, wherein: the telescopic support (2) is a scissor-fork type telescopic support, and the telescopic support (2) is matched with an electric telescopic rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911277421.8A CN110820557A (en) | 2019-12-12 | 2019-12-12 | Steel truss arch bridge maintenance car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911277421.8A CN110820557A (en) | 2019-12-12 | 2019-12-12 | Steel truss arch bridge maintenance car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110820557A true CN110820557A (en) | 2020-02-21 |
Family
ID=69545182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911277421.8A Pending CN110820557A (en) | 2019-12-12 | 2019-12-12 | Steel truss arch bridge maintenance car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110820557A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111321670A (en) * | 2020-03-14 | 2020-06-23 | 山西省交通规划勘察设计院有限公司 | Movable protective device for bridge engineering construction |
| CN111707730A (en) * | 2020-06-26 | 2020-09-25 | 嘉兴学院 | Bridge detection device based on sound wave signals |
| CN113588301A (en) * | 2021-07-07 | 2021-11-02 | 国能新朔铁路有限责任公司 | Wheel pair flaw detection device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2702129A1 (en) * | 2010-02-01 | 2011-08-01 | Kan Cui | Compact scissors lift |
| CN205773165U (en) * | 2016-05-24 | 2016-12-07 | 中船澄西船舶（广州）有限公司 | FPSO lift rudder blade maintenance work platform |
| CN207484286U (en) * | 2017-11-07 | 2018-06-12 | 内蒙古路桥集团有限责任公司 | A kind of bridge-collision-avoidance wall Safety operation platform |
| CN108824788A (en) * | 2018-07-11 | 2018-11-16 | 合肥尚涵装饰工程有限公司 | A kind of decorative engineering construction safety work automatic rising-sinking platform |
| CN208308375U (en) * | 2018-04-28 | 2019-01-01 | 迦南(福建)新材料科技有限公司 | A kind of apparatus for automatically lifting for aerial work |
| CN208328699U (en) * | 2018-02-21 | 2019-01-04 | 杨成 | A kind of bridge construction aerial work platform |
| CN109368562A (en) * | 2018-11-14 | 2019-02-22 | 黄钦英 | A kind of scissor-type tunnel top maintenance platform that working range is adjusted flexibly |
| CN109440640A (en) * | 2018-12-04 | 2019-03-08 | 李泽朋 | Bridge Evaluation device suitable for municipal bridge maintenance |
| CN110329964A (en) * | 2019-07-10 | 2019-10-15 | 山东劳动职业技术学院（山东劳动技师学院） | A kind of intelligentized multifunction power maintenance device |
-
2019
- 2019-12-12 CN CN201911277421.8A patent/CN110820557A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2702129A1 (en) * | 2010-02-01 | 2011-08-01 | Kan Cui | Compact scissors lift |
| CN205773165U (en) * | 2016-05-24 | 2016-12-07 | 中船澄西船舶（广州）有限公司 | FPSO lift rudder blade maintenance work platform |
| CN207484286U (en) * | 2017-11-07 | 2018-06-12 | 内蒙古路桥集团有限责任公司 | A kind of bridge-collision-avoidance wall Safety operation platform |
| CN208328699U (en) * | 2018-02-21 | 2019-01-04 | 杨成 | A kind of bridge construction aerial work platform |
| CN208308375U (en) * | 2018-04-28 | 2019-01-01 | 迦南(福建)新材料科技有限公司 | A kind of apparatus for automatically lifting for aerial work |
| CN108824788A (en) * | 2018-07-11 | 2018-11-16 | 合肥尚涵装饰工程有限公司 | A kind of decorative engineering construction safety work automatic rising-sinking platform |
| CN109368562A (en) * | 2018-11-14 | 2019-02-22 | 黄钦英 | A kind of scissor-type tunnel top maintenance platform that working range is adjusted flexibly |
| CN109440640A (en) * | 2018-12-04 | 2019-03-08 | 李泽朋 | Bridge Evaluation device suitable for municipal bridge maintenance |
| CN110329964A (en) * | 2019-07-10 | 2019-10-15 | 山东劳动职业技术学院（山东劳动技师学院） | A kind of intelligentized multifunction power maintenance device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111321670A (en) * | 2020-03-14 | 2020-06-23 | 山西省交通规划勘察设计院有限公司 | Movable protective device for bridge engineering construction |
| CN111707730A (en) * | 2020-06-26 | 2020-09-25 | 嘉兴学院 | Bridge detection device based on sound wave signals |
| CN113588301A (en) * | 2021-07-07 | 2021-11-02 | 国能新朔铁路有限责任公司 | Wheel pair flaw detection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110820557A (en) | Steel truss arch bridge maintenance car | |
| CN209942205U (en) | Construction hanging basket | |
| CN111926743A (en) | Interim protector of hydraulic engineering ramp of extensible protection zone | |
| CN114197844B (en) | Supporting platform with protection function for building construction | |
| CN106836936B (en) | A kind of electric power tower of mountable 4G antenna | |
| CN212127393U (en) | Miniature lifting platform | |
| CN208960618U (en) | Cold rolling edge grinding with protective device receives side machine | |
| CN215924195U (en) | Bridge crane equipped with multifunctional cab | |
| CN107932457A (en) | A kind of servicer of drawer locking device | |
| CN113430957A (en) | Bridge reinforcement construction high altitude protector | |
| CN209653451U (en) | A kind of construction anti-falling bracket | |
| CN219691464U (en) | Drawing type stepping ladder for continuous pipe working machine and continuous pipe working machine | |
| CN219218701U (en) | Hanging basket device for bridge construction | |
| CN205688378U (en) | A kind of guard rail | |
| CN219690384U (en) | Safety protection fence for highway maintenance | |
| CN220319080U (en) | Hanging basket for building construction | |
| CN211813292U (en) | Aluminum alloy single-mast column anti-tilt supporting aerial work platform | |
| CN213597533U (en) | Elevator mouth guard flap convenient to assemble | |
| CN205276913U (en) | Building construction safety protector | |
| CN217871697U (en) | Safety protection type power engineering maintenance device | |
| CN212200112U (en) | Road and bridge engineering protector with quick detach function | |
| CN213174723U (en) | Building external hanging type construction platform capable of being built quickly | |
| CN219158607U (en) | Temporary safety purse net for overhauling mechanical equipment | |
| CN205874972U (en) | Bridge railing structure | |
| CN211992849U (en) | Little assistant is accepted in mutual-inductor installation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200221 |