CN215711273U - Hoisting device attached to protective wall - Google Patents
Hoisting device attached to protective wall Download PDFInfo
- Publication number
- CN215711273U CN215711273U CN202121560775.6U CN202121560775U CN215711273U CN 215711273 U CN215711273 U CN 215711273U CN 202121560775 U CN202121560775 U CN 202121560775U CN 215711273 U CN215711273 U CN 215711273U
- Authority
- CN
- China
- Prior art keywords
- pair
- welded
- movable arm
- protective wall
- plate
- 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
Links
Images
Landscapes
- Jib Cranes (AREA)
Abstract
A hoisting device attached to a protective wall relates to the field of railway construction and comprises a bottom support piece; the bottom support piece comprises a base and a bearing piece welded on the base; the bearing piece is rotatably connected with a movable arm, the front end of the movable arm is fixedly connected with a power device, and the rear end of the movable arm is connected with a swing arm; the movable arm is provided with a first rotating wheel; the top of swing arm is equipped with the second runner. The base includes the horizontally bottom plate, weld perpendicularly and adjust the stand, lean out the welding at a pair of oblique stand of bottom plate lower surface opposite side well in one side of bottom plate lower surface, and open the both sides of bottom plate has vertical cross-under hole. The bearing part comprises a retainer ring vertically welded on the upper surface of the bottom plate and a bearing arranged at the upper opening in the retainer ring. The utility model solves the problem of single position of the construction material on the bridge and the problem of large bridge transport distance.
Description
Technical Field
The utility model relates to the field of railway construction, in particular to a hoisting device attached to a protective wall.
Background
In the field of constructional engineering bridges, a high-speed rail bridge can provide a safe, high-smoothness and stable line for a train, the occupied ratio of the bridge in the high-speed rail line is high, a large number of bridges are arranged, and the length of one large bridge can even reach twenty kilometers. After the ballastless track bed is constructed, the construction material is single in bridge-loading position and large in transport distance, and if the automobile crane is adopted for hoisting under the bridge, the construction is limited to the contact network lead and cannot be carried out. This patent is through designing a hoist device who adheres to in protecting wall, has both solved the unicity of material upper bridge position, has solved the big problem of bridge freight distance again, has improved efficiency under the prerequisite of assurance safety and quality.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a hoisting device attached to a protective wall, which solves the problem of singleness of a bridge position on a construction material and the problem of large bridge transport distance.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a hoisting device attached to a protective wall comprises a bottom support piece; the bottom support piece comprises a base and a bearing piece welded on the base; the bearing piece is rotatably connected with a movable arm, the front end of the movable arm is fixedly connected with a power device, and the rear end of the movable arm is connected with a swing arm; the movable arm is provided with a first rotating wheel; the top of swing arm is equipped with the second runner.
The base includes the horizontally bottom plate, weld perpendicularly and adjust the stand, lean out the welding at a pair of oblique stand of bottom plate lower surface opposite side well in one side of bottom plate lower surface, and open the both sides of bottom plate has vertical cross-under hole.
The bearing part comprises a retainer ring vertically welded on the upper surface of the bottom plate and a bearing arranged at the upper opening in the retainer ring.
Further preferred technical solution: the movable arm comprises a pair of bottom rods, a connecting plate welded between the rear portions of the pair of bottom rods, a connecting rod welded between the middle portions of the pair of bottom rods, a support column fixedly penetrating at the center of the connecting plate, a sealing plate welded at the upper opening of the support column, an inclined support rod welded between the connecting rod and the sealing plate in an inclined mode, a base plate welded at the top end of the upper surface of the inclined support rod, a pair of arc-shaped ear plates welded on the base plate, a pair of rectangular ear plates welded on the outer side of the upper surface of the connecting plate, and a U-shaped pipe welded between the outer sides of the pair of bottom rods.
Further preferred technical solution: the lower end of the strut is fixedly inserted in a bearing of the bearing piece; the rotation angle between the movable arm and the bottom support piece is 360 degrees.
Further preferred technical solution: the first rotating wheel is arranged between the pair of arc-shaped ear plates.
Further preferred technical solution: the power device 4 comprises a winding machine and a pair of machine bases welded on one side of the bottom of the winding machine; the winding machine is electrically connected with the generator.
Further preferred technical solution: the power device is positioned in front of the inclined stay bar of the movable arm.
A pair of bases of the power device 4 is correspondingly connected with a pair of bottom rods of the movable arm.
Further preferred technical solution: the swing arm comprises a swing rod which is obliquely arranged, a top end plate which is horizontally welded at an upper opening of the swing rod, a pair of rotating wheel hinge plates which are welded at the upper surface of the top end plate, a pair of restraints which are horizontally welded at one side of the swing rod, a bottom end plate which is vertically welded at a lower opening of the swing rod, and a pair of connecting hinge plates which are vertically welded at the bottom end plate.
Further preferred technical solution: the second runner is arranged between the pair of runner hinge plates.
Further preferred technical solution: a pair of connecting hinged plates of the swing arm is positioned between a pair of rectangular ear plates of the movable arm and is fixedly connected through bolts in a penetrating way.
Compared with the prior art, the utility model has the following characteristics and beneficial effects:
after the ballastless track bed is constructed, the later-stage material transportation generally adopts a track trolley, and the loading transportation is carried out from the abutment side, so that the method for the long and large bridge has large transportation distance and low speed and can be used only after being limited by track laying.
After the hoisting device attached to the protective wall is adopted, the problem of steel rail laying is not considered, the construction temporary road under the bridge can be utilized in logistics transportation, the selectivity of hoisting points is high, materials can be selected to be hoisted by using concentration points, the transportation distance of the construction materials on the bridge after the ballastless track bed is laid is shortened, the temporary road is fully utilized, the work efficiency is greatly improved, the materials can be recycled, and the economic benefit and the social benefit are obvious.
2, the hoisting device attached to the protective wall solves the problem of singleness of material transportation on a bridge after construction of a ballastless track bed of an extra-large bridge, solves the problem of large transportation distance of the bridge, and improves efficiency on the premise of ensuring safety and quality.
3, the hoisting device attached to the protective wall has the advantages of simple structure, less material consumption, simple manufacture, time and labor saving, cost saving and more economy.
4, the flexibility ratio is high, can change the place fast, can have enough to meet the need the use many times, convenient to use, can be according to the construction needs, nimble use, quick installation dismantlement, social and economic benefits are showing, and application prospect is good.
Drawings
Fig. 1 is an elevation view of a lifting device of the present invention attached to a protective wall.
Fig. 2 is a plan view of the lifting device of the present invention attached to a protective wall.
Figure 3 is a side view of the lifting device of the present invention attached to a protective wall.
Fig. 4 is a three-dimensional perspective view of the lifting device attached to a protective wall of the present invention.
FIG. 5 is a plan view of the bottom support of the present invention.
FIG. 6 is a cross-sectional view taken along plane A-A of the bottom support of FIG. 5 of the present invention.
FIG. 7 is a sectional view taken along plane B-B of the bottom support of FIG. 5 of the present invention.
FIG. 8 is a three-dimensional perspective view of the F-plane of the bottom support of the present invention.
Fig. 9 is an elevational view of the activating arm of the present invention.
Figure 10 is a plan view of the moveable arm of the present invention.
Figure 11 is a cross-sectional view, C-C, of the moveable arm of figure 10 of the present invention.
Figure 12 is a cross-sectional view, D-D, of the movable arm of figure 10 of the present invention.
Fig. 13 is a three-dimensional perspective view of the moveable arm of the present invention.
Fig. 14 is an elevational view of the power unit of the present invention.
Fig. 15 is a plan view of the power unit of the present invention.
Fig. 16 is a side view of the power unit of the present invention.
Fig. 17 is a three-dimensional perspective view of the power unit of the present invention.
Fig. 18 is an elevational view of the swing arm of the present invention.
Fig. 19 is a plan view of the swing arm of the present invention.
Fig. 20 is a side view of the E-E axis of the swing arm of the present invention.
FIG. 21 is a side view of the F-F axis of the swing arm of the present invention.
Fig. 22 is a three-dimensional perspective view of the swing arm of the present invention.
Reference numerals:
1-base, 1.1-bottom plate, 1.2-upright column, 1.3-oblique upright column, 1.4-through hole,
2-bearing part, 2.1-retainer ring, 2.2-bearing,
3-movable arm, 3.1-bottom rod, 3.2-connecting plate, 3.3-connecting rod, 3.4-supporting column, 3.5-sealing plate, 3.6-oblique supporting rod, 3.7-backing plate, 3.8-arc ear plate, 3.9-rectangular ear plate, 3.10-U-shaped tube,
4-power device, 4.1-winding machine, 4.2-machine base,
5-swing arm, 5.1-swing rod, 5.2-top end plate, 5.3-rotary wheel hinge plate, 5.4-restraint device, 5.5-bottom end plate, 5.6-connecting hinge plate,
6-a first rotating wheel,
7-second wheel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model relates to a hoisting device attached to a protective wall, which is mainly suitable for ballastless track bed construction and front and rear small-sized construction material hoisting of an extra-large bridge type bridge.
A hoisting device attached to a protective wall comprises a bottom support piece; the bottom support piece comprises a base 1 and a bearing piece 2 welded on the base 1; the bearing piece 2 is rotatably connected with a movable arm 3, the front end of the movable arm 3 is fixedly connected with a power device 4, and the rear end of the movable arm 3 is connected with a swing arm 5; the movable arm 3 is provided with a first rotating wheel 6; the top end of the swing arm 5 is provided with a second runner 7.
Referring to fig. 5 to 8, a bottom support; the bottom support comprises a base 1 and a bearing member 2 welded to the base 1.
The base 1 comprises a horizontal bottom plate 1.1, a pair of upright columns 1.2 vertically welded on one side of the lower surface of the bottom plate and a pair of inclined columns 1.3 welded on the other side of the lower surface of the bottom plate in an outward inclined mode, and vertical through holes 1.4 are formed in two sides of the bottom plate.
The bearing part 2 comprises a retainer ring 2.1 vertically welded on the upper surface of the bottom plate and a bearing 2.2 arranged at the inner upper opening of the retainer ring.
A bottom plate in the base 1 is a steel plate, the positive upright posts and the inclined upright posts are 10-number channel steel, and the openings of the channel steel are welded outwards; the overall shape and the structure of the base 1 are the same as the structural size of the bridge protection wall.
The retainer ring in the bearing element 2 is a steel cylinder of 130 x 250 x 2.5mm diameter.
Referring to fig. 9 to 13, the movable arm 3; the movable arm 3 comprises a pair of bottom rods 3.1, a connecting plate 3.2 welded between the rear parts of the pair of bottom rods 3.1, a connecting rod 3.3 welded between the middle parts of the pair of bottom rods 3.1, a support 3.4 fixedly connected to the center of the connecting plate 3.2 in a penetrating manner, a sealing plate 3.5 welded to the upper opening of the support 3.4, an inclined strut 3.6 welded between the connecting rod 3.3 and the sealing plate 3.5 in an inclined manner, a backing plate 3.7 welded to the top end of the upper surface of the inclined strut 3.6, a pair of arc-shaped ear plates 3.8 welded to the backing plate 3.7, a pair of rectangular ear plates 3.9 welded to the outer side of the upper surface of the connecting plate 3.2, and a U-shaped pipe 3.10 welded between the outer sides of the pair of bottom rods 3.1; the U-shaped pipe 3.10 is positioned at one side far away from the connecting plate 3.2, and the center lines of the U-shaped pipe 3.10 and the pair of bottom rods 3.1 are positioned in the same plane; the lower ends of the pillars 3.4 penetrate through the lower surface of the connecting plate 3.2.
The lower end of the strut 3.4 is fixedly inserted in the bearing 2.2 of the bearing piece 2; ensuring that the movable arm 3 can rotate freely around the bottom support part by 360 degrees.
A first rotating wheel 6 is arranged between the pair of arc-shaped ear plates 3.8; the middle of the first rotating wheel 6 is connected with a rotating shaft in a penetrating way, two ends of the rotating shaft are connected between the pair of arc-shaped ear plates 3.8 in a penetrating way, and two ends of the rotating shaft are fastened through nuts.
A pair of bottom rods 3.1, connecting rods 3.3, sealing plates 3.5 and inclined stay bars 3.6 in the movable arm 3 are No. 8 channel steel; the strut 3.4 is a steel pipe with the diameter of 60 mm; the U-shaped pipe 3.10 is a steel pipe with the diameter of 20 mm.
Referring to fig. 14 to 17, the power unit 4; the power device 4 comprises a winding machine 4.1 and a pair of machine bases 4.2 welded at one side of the bottom of the winding machine 4.1; the pair of bases 4.2 are a pair of angle steels with outward openings, the top edges of vertical limbs of the pair of angle steels are welded with the winding machine 4.1, and bolt holes are formed in horizontal limbs at intervals; the winding machine 4.1 is electrically connected to a generator, which serves as a power source for the winding machine 4.1.
A pair of bases 4.2 in the power device 4 are 4# angle steels.
The power device 4 is positioned in front of the inclined stay bar 3.6 of the movable arm 3; a pair of bases 4.2 of the power device 4 are correspondingly arranged on a pair of bottom rods 3.1 of the movable arm 3 and are fixed by bolts penetrating through bolt holes on the pair of bases 4.2 and the pair of bottom rods 3.1, so that the winding machine 4.1 is fixed on the movable arm 3.
Referring to fig. 18 to 22, the swing arm 5; the swing arm 5 comprises a swing rod 5.1 which is obliquely arranged, a top end plate 5.2 which is horizontally welded at the upper opening of the swing rod 5.1, a pair of rotating wheel hinge plates 5.3 which are welded on the upper surface of the top end plate 5.2, a pair of restraints 5.4 which are horizontally welded at one opposite side of the swing rod 5.1, a bottom end plate 5.5 which is vertically welded at the lower opening of the swing rod 5.1, and a pair of connecting hinge plates 5.6 which are vertically welded on the bottom end plate 5.5.
The restraint 5.4 comprises a securing rod and a threading loop.
A second rotating wheel 7 is arranged between the pair of rotating wheel hinge plates 5.3; the middle of the second rotating wheel 7 is connected with a rotating shaft in a penetrating way, two ends of the rotating shaft are connected between the pair of rotating wheel hinge plates 5.3 in a penetrating way, and two ends of the rotating shaft are fastened through nuts.
A pair of connecting hinge plates 5.6 of the swing arm 5 are positioned between a pair of rectangular ear plates 3.9 of the movable arm 3 and are fixed by bolts in a penetrating way.
The swing rod 5.1 in the swing arm 5 is made of square tube materials.
After the ballastless track bed is constructed, the later-stage material transportation generally adopts a track trolley, and the loading transportation is carried out from the abutment side, so that the method for the long and large bridge has large transportation distance and low speed and can be used only after being limited by track laying.
After the hoisting device attached to the protective wall is adopted, the problem of steel rail laying is not considered, the construction temporary road under the bridge can be utilized in logistics transportation, the selectivity of hoisting points is high, materials can be selected to be hoisted by using concentration points, the transportation distance of the construction materials on the bridge after the ballastless track bed is laid is shortened, the temporary road is fully utilized, the work efficiency is greatly improved, the materials can be recycled, and the economic benefit and the social benefit are obvious.
2, the hoisting device attached to the protective wall solves the problem of singleness of material transportation on a bridge after construction of a ballastless track bed of an extra-large bridge, solves the problem of large transportation distance of the bridge, and improves efficiency on the premise of ensuring safety and quality.
3, the hoisting device attached to the protective wall has the advantages of simple structure, less material consumption, simple manufacture, time and labor saving, cost saving and more economy.
4, the flexibility ratio is high, can change the place fast, can have enough to meet the need the use many times, convenient to use, can be according to the construction needs, nimble use, quick installation dismantlement, social and economic benefits are showing, and application prospect is good.
The utility model relates to a using method of a hoisting device attached to a protective wall, which comprises the following steps:
1, selecting a material using a centralized point as a hoisting point by utilizing an underbridge construction access way.
2, fix base 1 on the protective wall corresponding to the hoisting point card, guarantee that swing arm 5 stretches out bridge flange board.
Specifically, a pair of upright columns 1.2 of the base 1 are positioned on the outer side of the protective wall, and a pair of inclined columns 1.3 are positioned on the inner side of the protective wall.
The structure size of the base 1 can be adjusted according to the actual situation of the protective wall in actual construction.
3, a steel wire rope on the winding machine 4.1 sequentially passes through the first rotating wheel 6, the restraint device 5.4 and the second rotating wheel 7 and extends to the bottom of the bridge.
And 4, utilizing the generator to generate power to drive the winding machine 4.1 to work, driving the steel wire rope to work by the winding machine 4.1, and lowering and hoisting the material.
And 5, when hoisting, manually holding the rear end of the movable arm 3, and rotating the movable arm 3 through the bearing piece 2.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides an attached to hoist device of protective wall which characterized in that: comprises a bottom support; the bottom support piece comprises a base (1) and a bearing piece (2) welded on the base (1); the bearing piece (2) is rotatably connected with a movable arm (3), the front end of the movable arm (3) is fixedly connected with a power device (4), and the rear end of the movable arm (3) is connected with a swing arm (5); a first rotating wheel (6) is arranged on the movable arm (3); the top end of the swing arm (5) is provided with a second rotating wheel (7);
the base (1) comprises a horizontal bottom plate (1.1), a pair of upright columns (1.2) vertically welded on one side of the lower surface of the bottom plate and a pair of inclined upright columns (1.3) welded on the other side of the lower surface of the bottom plate in an outward inclined manner, and vertical through holes (1.4) are formed in two sides of the bottom plate;
the bearing piece (2) comprises a retainer ring (2.1) vertically welded on the upper surface of the bottom plate and a bearing (2.2) arranged at the upper opening in the retainer ring;
the retainer ring in the bearing piece (2) is a steel cylinder.
2. The hoisting device attached to the protective wall according to claim 1, wherein: the movable arm (3) comprises a pair of bottom rods (3.1), a connecting plate (3.2) welded between the rear portions of the pair of bottom rods (3.1), a connecting rod (3.3) welded between the middle portions of the pair of bottom rods (3.1), a pillar (3.4) fixedly penetrating the center of the connecting plate (3.2), a sealing plate (3.5) welded on an upper opening of the pillar (3.4), an inclined strut (3.6) obliquely welded between the connecting rod (3.3) and the sealing plate (3.5), a backing plate (3.7) welded at the top end of the upper surface of the inclined strut (3.6), a pair of arc-shaped ear plates (3.8) welded on the backing plate (3.7), a pair of rectangular ear plates (3.9) welded on the outer side of the upper surface of the connecting plate (3.2), and a U-shaped pipe (3.10) welded between the outer sides of the pair of bottom rods (3.1).
3. The hoisting device attached to the protective wall according to claim 2, wherein: the lower end of the pillar (3.4) penetrates out of the lower surface of the connecting plate (3.2).
4. The hoisting device attached to the protective wall according to claim 2, wherein: the lower end of the strut (3.4) is fixedly inserted in a bearing (2.2) of the bearing piece (2); the rotating angle between the movable arm (3) and the bottom supporting piece is 360 degrees.
5. The hoisting device attached to the protective wall according to claim 2, wherein: the first runner (6) is arranged between the pair of arc-shaped ear plates (3.8).
6. The hoisting device attached to the protective wall according to claim 2, wherein: the power device (4) comprises a winding machine (4.1) and a pair of machine bases (4.2) welded at one side of the bottom of the winding machine (4.1); the winding machine (4.1) is electrically connected with the generator.
7. The hoisting device attached to the protective wall according to claim 6, wherein: the power device (4) is positioned in front of the inclined stay bar (3.6) of the movable arm (3);
a pair of bases (4.2) of the power device (4) is correspondingly connected with a pair of bottom rods (3.1) of the movable arm (3).
8. The hoisting device attached to the protective wall according to any one of claims 2 to 7, wherein: the swing arm (5) comprises a swing rod (5.1) which is obliquely arranged, a top end plate (5.2) which is horizontally welded at the upper opening of the swing rod (5.1), a pair of rotating wheel hinge plates (5.3) which are welded on the upper surface of the top end plate (5.2), a pair of restraint devices (5.4) which are horizontally welded at one opposite side of the swing rod (5.1), a bottom end plate (5.5) which is vertically welded at the lower opening of the swing rod (5.1), and a pair of connecting hinge plates (5.6) which are vertically welded on the bottom end plate (5.5).
9. The hoisting device attached to the protective wall according to claim 8, wherein: the second runner (7) is arranged between the pair of runner hinge plates (5.3).
10. The hoisting device attached to the protective wall according to claim 8, wherein: a pair of connecting hinged plates (5.6) of the swing arm (5) is positioned between a pair of rectangular ear plates (3.9) of the movable arm (3) and is fixedly connected through bolts in a penetrating way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121560775.6U CN215711273U (en) | 2021-07-09 | 2021-07-09 | Hoisting device attached to protective wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121560775.6U CN215711273U (en) | 2021-07-09 | 2021-07-09 | Hoisting device attached to protective wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215711273U true CN215711273U (en) | 2022-02-01 |
Family
ID=80048239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121560775.6U Active CN215711273U (en) | 2021-07-09 | 2021-07-09 | Hoisting device attached to protective wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215711273U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113602978A (en) * | 2021-07-09 | 2021-11-05 | 中国建筑土木建设有限公司 | Hoisting device attached to protective wall and applicable to long and large bridge and using method thereof |
-
2021
- 2021-07-09 CN CN202121560775.6U patent/CN215711273U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113602978A (en) * | 2021-07-09 | 2021-11-05 | 中国建筑土木建设有限公司 | Hoisting device attached to protective wall and applicable to long and large bridge and using method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215711273U (en) | Hoisting device attached to protective wall | |
| CN101413234B (en) | Arranging construction method of subway narrow shield well inclined hoisting rail | |
| CN201276666Y (en) | Rail panel hoisting apparatus | |
| CN113602978A (en) | Hoisting device attached to protective wall and applicable to long and large bridge and using method thereof | |
| CN210315551U (en) | Local convertible single pile embracing pile ware | |
| CN208748661U (en) | A kind of profile steel bracket device for staying support to remove | |
| CN215978530U (en) | Steel beam sliding installation device | |
| CN202881854U (en) | Support bracket for bridge construction | |
| CN115196492A (en) | Vertical transportation and hoisting device for arc-shaped prefabricated parts in super-large-diameter shield tunnel | |
| CN211169550U (en) | Hoisting device for maintaining and replacing speed reducer | |
| CN214329956U (en) | Ring rail hoisting device for curtain wall installation | |
| CN212127307U (en) | Adjustable hoisting support applied to maintenance on bridge crane trolley steel rail | |
| CN211496663U (en) | Gantry crane supporting device | |
| CN203878478U (en) | A bridge girder erection machine with a single arm box girder | |
| CN103924523B (en) | A kind of single armed box beam bridge formation machine | |
| CN210234958U (en) | Carrying trolley for high-speed railway construction | |
| CN210310336U (en) | Power station rock anchor beam track pouring travelling bogie | |
| CN207513131U (en) | A kind of adjustable cantilever weld holder of movable type | |
| CN112627043A (en) | Installation device and method for composite cable saddle of narrow cavern of suspension bridge in mountainous area | |
| CN204959505U (en) | Single line roof beam security platform | |
| CN219786916U (en) | Automatic welding device for circular seam of large-sized pressure steel pipe | |
| CN217627301U (en) | A telescopic support of rotatable removal for installing sound barrier | |
| CN201198561Y (en) | Bridging system of self-anchoring type rope-suspension bridge | |
| CN203821250U (en) | Hanging structure of one-armed box girder bridge erection machine | |
| CN203878477U (en) | Hanger of single-arm box girder bridging machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |