CN202116978U - Bidirectional supporting device at flexible girder end of bridge - Google Patents
Bidirectional supporting device at flexible girder end of bridge Download PDFInfo
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- CN202116978U CN202116978U CN2011202064531U CN201120206453U CN202116978U CN 202116978 U CN202116978 U CN 202116978U CN 2011202064531 U CN2011202064531 U CN 2011202064531U CN 201120206453 U CN201120206453 U CN 201120206453U CN 202116978 U CN202116978 U CN 202116978U
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- bridge
- crossbeam
- steel plate
- neoprene bearing
- bearing
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Abstract
The utility model discloses a bidirectional supporting device at a flexible girder end of a bridge. The device comprises two bidirectional supports, which are same in structure and size and respectively arranged on left and right ends of a transverse beam of the bridge. The bidirectional support comprises an upper rubber support and a lower rubber support respectively arranged at upper and lower sides of the transverse beam of the bridge. The upper rubber support and the lower rubber support are clamped and fixed at upper and lower sides of the transverse beam of the bridge through a fixed steel plate and a plurality of pre-embedded bolts. The fixed steel plate is arranged above the upper rubber support. The bottoms of the plurality of pre-embedded bolts are pre-embedded in a support structure at the lower part of the bridge. The tops of the plurality of pre-embedded bolts are fixed on the fixed steel plate. A girder of the bridge is a flexible beam. The girder end is fixed on the transverse beam of the bridge. The bidirectional supporting device at the flexible girder end of the bridge disclosed by the utility model has the advantages of simplicity in structure, reasonable design, convenience for construction and good use effect. The upper rubber support and the lower rubber support fixed through the plurality of pre-embedded bolts can be used for effectively restraining the movement of the transverse beam of the bridge in the transverse direction and the vertical direction of the girder.
Description
Technical field
The utility model relates to a kind of bridge overhang bracket device, especially relates to the two-way supporting arrangement of the flexible girder beam-ends of a kind of bridge.
Background technology
For girder is the suspension bridge (being flexible girder suspension bridge) of flexible beam, and when girder teetertottered in the effect bottom of vehicular load, the member on girder top and the destructiveness of itself were quite serious.Simultaneously, under factor effects such as wind load, the lateral displacement of the whole bridge of suspension bridge is also relatively large, and when crossbeam generation lateral displacement, all can produce bigger active force between longeron and the crossbeam and between crossbeam and the bearing and cause corresponding destruction.But nowadays, when building the overhang bracket device in the flexible girder suspension bridge, generally only consider of the vertical support effect of overhang bracket device, thereby set overhang bracket device can only bear the downward pressure of girder usually to girder at present.
In the actual use of flexible girder suspension bridge; Because existing overhang bracket apparatus function is comparatively single; Only has vertical support effect to girder; Thereby existing overhang bracket device can not carry out operative constraint to the horizontal force of flexible girder and active force upwards, and the destruction that it teetertotters to girder and whole bridge takes place to be produced when laterally mobile is powerless.To sum up; There is function singleness in the existing set overhang bracket device of flexible girder beam-ends, can not carries out defective and deficiencies such as operative constraint to the horizontal force of flexible girder and the active force that makes progress; And correspondingly cause multiple practical problems such as flexible girder suspension bridge maintenance cost is big, safety is relatively poor, application life is short, thereby existing overhang bracket device can not satisfy actual user demand.
The utility model content
The utility model technical problem to be solved is to above-mentioned deficiency of the prior art; Provide the flexible girder beam-ends of a kind of bridge two-way supporting arrangement; It is simple in structure, reasonable in design, easy construction and result of use are good, through fixing the last neoprene bearing of a plurality of pre-embedded bolts and play neoprene bearing to the bridge crossbeam at bridge lateral and the motion vertically all carry out operative constraint.
For solving the problems of the technologies described above; The technical scheme that the utility model adopts is: the two-way supporting arrangement of the flexible girder beam-ends of a kind of bridge; It is characterized in that: comprise that two structures are all identical with size and be laid in the bilateral support on the beam-ends of the bridge crossbeam left and right sides respectively; Said bilateral support comprises and is laid in bridge crossbeam (2) last neoprene bearing and the following neoprene bearing of both sides up and down respectively; Said bridge crossbeam is supported on the bridge lower support structure, and said bridge lower support structure is a reinforced concrete structure, and upward neoprene bearing clamps the both sides up and down that are fixed on the bridge crossbeam with following neoprene bearing through a fixation steel plate and a plurality of pre-embedded bolt; Said fixation steel plate is laid in the neoprene bearing top, and the bottom of a plurality of said pre-embedded bolts all is embedded in the said bridge lower support structure in advance, and the top of a plurality of said pre-embedded bolts all is fixed on the said fixation steel plate; Said bridge crossbeam is vertical laying with bridge main beam, and said bridge main beam is that flexible beam and its beam-ends are supported and fixed on the bridge crossbeam.
The two-way supporting arrangement of the flexible girder beam-ends of above-mentioned a kind of bridge; It is characterized in that: the steel plate one of said fixation steel plate for laying along the beam body center line of bridge crossbeam; And the suitable bridge of steel plate one is to the deck-siding of width greater than the bridge crossbeam; A plurality of said pre-embedded bolts are laid in the left and right sides of bridge crossbeam respectively, and the left and right sides of steel plate one is provided with the bolt mounting holes that supplies pre-embedded bolt to pass.
The two-way supporting arrangement of the flexible girder beam-ends of above-mentioned a kind of bridge; It is characterized in that: comprise that also filling up the steel plate two and the pad that are contained in the neoprene bearing below is contained in the steel plate three between bridge crossbeam and the following neoprene bearing; Steel plate two is all laid along the beam body center line of bridge crossbeam with steel plate three, and the suitable bridge of steel plate two and steel plate three all is not more than the deck-siding of bridge crossbeam to width.
The two-way supporting arrangement of the flexible girder beam-ends of above-mentioned a kind of bridge is characterized in that: comprise also being laid in the structural bearing pad stone of said bridge lower support that said neoprene bearing pad down is contained between bearing pad stone and the bridge crossbeam.
The two-way supporting arrangement of the flexible girder beam-ends of above-mentioned a kind of bridge is characterized in that: said bearing pad stone be positioned at the bridge crossbeam under and its be not more than the deck-siding of bridge crossbeam to width along bridge.
The two-way supporting arrangement of the flexible girder beam-ends of above-mentioned a kind of bridge is characterized in that: a plurality of said pre-embedded bolts divide two rows to lay, and the symmetrical respectively left and right sides that is laid in the bridge crossbeam of the said pre-embedded bolt of two rows.
The two-way supporting arrangement of the flexible girder beam-ends of above-mentioned a kind of bridge; It is characterized in that: said bridge main beam comprises laying a plurality of bridge longerons at grade; A plurality of said bridge longerons are parallel laying, and the beam-ends of a plurality of said bridge longerons all is fixed on bridge crossbeam top; A plurality of said bridge longerons are fastenedly connected through the bridge crossbeam and are one, and said bridge main beam is supported and fixed on the said bridge lower support structure through the bridge crossbeam.
The two-way supporting arrangement of the flexible girder beam-ends of above-mentioned a kind of bridge; It is characterized in that: said down neoprene bearing be positioned at bearing pad stone directly over; Said go up neoprene bearing be laid in play neoprene bearing directly over, and go up neoprene bearing and following neoprene bearing is all laid along the beam body center line of bridge crossbeam.
The two-way supporting arrangement of the flexible girder beam-ends of above-mentioned a kind of bridge; It is characterized in that: all the deck-siding with the bridge crossbeam is identical to width for the suitable bridge of said bearing pad stone and steel plate three; All less than the deck-siding of bridge crossbeam, the suitable bridge of said steel plate two is to the deck-siding of width less than the bridge crossbeam to width for said structure that goes up neoprene bearing and following neoprene bearing and measure-alike and the two suitable bridge.
The two-way supporting arrangement of the flexible girder beam-ends of above-mentioned a kind of bridge, it is characterized in that: said bridge crossbeam is made up of the many i iron that are parallel laying, and many said i iron are even laying; A plurality of said bridge longerons are even laying, and said bridge longeron is i iron, all are fixedly connected with welding manner between said bridge crossbeam and steel plate two and the steel plate three.
The utility model compared with prior art has the following advantages:
1, simple in structure, reasonable in design and input cost is low.
2, the easy and short construction period of construction sequence; Only need to get final product through the fixing respectively neoprene bearing in the both sides up and down of a plurality of pre-embedded bolts and fixation steel plate beam-ends in the bridge crossbeam left and right sides; Be laid in bridge crossbeam bilateral support of two neoprene bearings compositions of both sides up and down; And this bilateral support is laid on the bearing pad stone; Also need between bridge crossbeam top and the bottom and neoprene bearing pad adorn a block plate simultaneously, thereby the utility model mainly is made up of bearing pad stone, a plurality of pre-embedded bolt, two neoprene bearings and three block plates.
3, result of use is good; Two neoprene bearings are fixed on the both sides up and down of bridge crossbeam through pre-embedded bolt and three block plates; Wherein going up neoprene bearing is fixed between steel plate one and the steel plate two; Following neoprene bearing is fixed between steel plate three and the bearing pad stone, and steel plate two and steel plate three are weldingly fixed on the upper and lower sides of bridge crossbeam respectively, and bearing pad stone and bridge lower support structure are cast for one; Steel plate one is fixed on the bridge lower support structure through a plurality of pre-embedded bolts are fastening, thereby it is very reliable to go up being fixedly connected of neoprene bearing and following neoprene bearing.In the actual use, the last neoprene bearing that is laid in bridge crossbeam upper and lower sides and play neoprene bearing under the vertical restraint forces effect of a plurality of pre-embedded bolts, be respectively applied for the flexible girder beam end of restriction since loads such as vehicle cause upwards with downward displacement; Simultaneously, also the lateral displacement of whole bridge there is certain cushioning effect by the fixing last neoprene bearing of a plurality of pre-embedded bolts with following neoprene bearing.To sum up; The last neoprene bearing fixing by a plurality of pre-embedded bolts all plays effect of contraction to the bridge crossbeam in bridge lateral and the motion on vertical with following neoprene bearing; Its mode through laying neoprene bearing respectively at the upper and lower sides of bridge crossbeam upwards limits with displacement downwards flexible girder beam end simultaneously, and adopt pre-embedded bolt fixedly the mode of neoprene bearing the lateral displacement of bridge is had certain cushioning effect.
4, practical value is high; Because the effect that the utility model can easy realization retrains in bridge lateral and motion on vertical the bridge crossbeam simultaneously; Thereby make the maintenance cost of flexible girder suspension bridge significantly reduce; When prolonging flexible girder application life, the safety that has also improved flexible girder greatly.
5, applied widely, can effectively promote be suitable for to all girders be on the bridge of flexible beam.
In sum; The utility model is simple in structure, reasonable in design, easy construction and result of use are good; The last neoprene bearing fixing through a plurality of pre-embedded bolts all plays effect of contraction to the bridge crossbeam in bridge lateral and the motion on vertical with play neoprene bearing, can effectively solve the overhang bracket device existence of existing flexible girder beam-ends function singleness, can not carry out defective and deficiencies such as operative constraint to the horizontal force of flexible girder and the active force that makes progress.
Through accompanying drawing and embodiment, the technical scheme of the utility model is done further detailed description below.
Description of drawings
Fig. 1 is the user mode reference diagram of the utility model.
Fig. 2 is the A-A sectional view of Fig. 1.
Description of reference numerals:
1-bridge tower pedestal; 2-bridge crossbeam; The 3-bridge main beam;
4-suspension bridge bridge tower; 5-girder beam body center line; The 6-bearing pad stone;
The 7-pre-embedded bolt; 8-steel plate one; 9-steel plate two;
10-steel plate three; The last neoprene bearing of 11-; Neoprene bearing under the 12-.
The specific embodiment
Like Fig. 1, shown in Figure 2; The utility model comprises that two structures are all identical with size and is laid in the bilateral support on bridge crossbeam 2 left and right sides beam-ends respectively; Said bilateral support comprises and is laid in bridge crossbeam (2) the last neoprene bearing 11 and following neoprene bearing 12 of both sides up and down respectively; Said bridge crossbeam 2 is supported on the bridge lower support structure; Said bridge lower support structure is a reinforced concrete structure, and upward neoprene bearing 11 clamps the both sides up and down that are fixed on bridge crossbeam 2 with following neoprene bearing 12 through a fixation steel plate and a plurality of pre-embedded bolt 7.Said fixation steel plate is laid in neoprene bearing 11 tops, and the bottom of a plurality of said pre-embedded bolts 7 all is embedded in the said bridge lower support structure in advance, and the top of a plurality of said pre-embedded bolts 7 all is fixed on the said fixation steel plate.Said bridge crossbeam 2 is vertical laying with bridge main beam 3, and said bridge main beam 3 is supported and fixed on the bridge crossbeam 2 for flexible beam and its beam-ends.
In the present embodiment, said bridge main beam 3 comprises laying a plurality of bridge longerons at grade, and a plurality of said bridge longerons are parallel laying, and the beam-ends of a plurality of said bridge longerons all is fixed on bridge crossbeam 2 tops.A plurality of said bridge longerons are fastenedly connected through bridge crossbeam 2 and are one, and said bridge main beam 3 is supported and fixed on the said bridge lower support structure through bridge crossbeam 2.
In the present embodiment; Said fixation steel plate is the steel plate of laying along the beam body center line of bridge crossbeam 21; And the suitable bridge of steel plate 1 is to the deck-siding of width greater than bridge crossbeam 2; A plurality of said pre-embedded bolts 7 are laid in the left and right sides of bridge crossbeam 2 respectively, and the left and right sides of steel plate 1 is provided with the bolt mounting holes that supplies pre-embedded bolt 7 to pass.
During actual installation; The utility model comprises that also filling up the steel plate 29 and the pad that are contained in neoprene bearing 11 belows is contained in the steel plate 3 10 between bridge crossbeam 2 and the following neoprene bearing 12; Steel plate 29 is all laid along the beam body center line of bridge crossbeam 2 with steel plate 3 10, and the suitable bridge of steel plate 29 and steel plate 3 10 all is not more than the deck-siding of bridge crossbeam 2 to width.
In the present embodiment, the utility model comprises also and is laid in the structural bearing pad stone 6 of said bridge lower support that said 12 pads of neoprene bearing down are contained between bearing pad stone 6 and the bridge crossbeam 2.And during actual the construction, said bearing pad stone 6 be positioned at bridge crossbeam 2 under and its be not more than the deck-siding of bridge crossbeam 2 to width along bridge.
The actual laying when installing, a plurality of said pre-embedded bolts 7 minutes two rows lay, and the symmetrical respectively left and right sides that is laid in bridge crossbeam 2 of the said pre-embedded bolt 7 of two rows.During actual the laying, a plurality of said pre-embedded bolts 7 all are vertically to laying.In the present embodiment, the quantity of said pre-embedded bolt 7 is four.
During practice of construction, said bridge crossbeam 2 is made up of the many i iron that are parallel laying, and many said i iron are even laying.A plurality of said bridge longerons are even laying, and said bridge longeron is i iron, all are fixedly connected with welding manner between said bridge crossbeam 2 and steel plate 29 and the steel plate 3 10.In the present embodiment, said bridge crossbeam 2 is made up of two i iron that are parallel laying.
In the present embodiment, said down neoprene bearing 12 be positioned at bearing pad stone 6 directly over, said go up neoprene bearing 11 be laid in play neoprene bearing 12 directly over, and go up neoprene bearing 11 and following neoprene bearing 12 is all laid along the beam body center line of bridge crossbeam 2.
All the deck-siding with bridge crossbeam 2 is identical to width for the suitable bridge of said bearing pad stone 6 and steel plate 3 10; All less than the deck-siding of bridge crossbeam 2, the suitable bridge of said steel plate 29 is to the deck-siding of width less than bridge crossbeam 2 to width for said structure that goes up neoprene bearing 11 and following neoprene bearing 12 and measure-alike and the two suitable bridge.
In the present embodiment; The residing bridge of the utility model is a suspension bridge; This suspension bridge is flexible steel suspension bridge, and said bridge lower support structure be suspension bridge bridge tower 4 bridge tower pedestal 1, the reinforced concrete foundation that bridge tower pedestal 1 forms for cast in advance; And bridge tower pedestal 1 is being carried out in the pouring concrete construction process, within it the pre-buried a plurality of pre-embedded bolts 7 of portion.Bridge deck are equipped with on said bridge main beam 3 upper berths, and said bridge deck are French beans type checkered steel plate.
After said bridge tower pedestal 1 construction is accomplished, the bearing pad stone 6 of constructing respectively in the left and right sides, bridge tower pedestal 1 top again, the left side beam-ends of bridge crossbeam 2 or right side beam-ends are supported and fixed on respectively on two bearing pad stones 6.When reality is set up bridge crossbeam 2; On the left side of bridge crossbeam 2 beam-ends and right side beam-ends, lay a bilateral support respectively; And the job practices of left side beam-ends and right side bilateral support that beam-ends is laid is identical, and two said bilateral supports are that axis of symmetry carries out symmetry and lays with the girder beam body center line 5 of bridge main beam 3.This sentences the bilateral support of being laid on the bridge crossbeam 2 left side beam-ends is that example describes; During practice of construction; At first cloth is set neoprene bearing 12 on bearing pad stone 6; Between the left side of bridge crossbeam 2 beam-ends and following neoprene bearing 12, fill up cartridge plate 3 10 again; Subsequently beam-ends top, the left side of bridge crossbeam 2 lay successively from the bottom to top steel plate 29, on neoprene bearing 11 and steel plate 1; And when steel plate 1 is laid, pass in the bolt mounting holes that the feasible double-screw bolt that is embedded in a plurality of pre-embedded bolts 7 in the bridge tower pedestal 1 is opened on steel plate 1 respectively, be locked through the nut that uses that matches with double-screw bolt at last; All be fixedly connected between said steel plate 29 and steel plate 3 10 and the bridge crossbeam 2 simultaneously, so just will go up both sides about the fastening left side beam-ends that is installed on bridge crossbeam 2 of neoprene bearing 11 and following neoprene bearing 12 with welding manner.In the actual use, said pre-embedded bolt 7 compositions of said upward neoprene bearing 11, following neoprene bearing 12 and Duo Gen carry out bidirectionally limited device spacing and buffering to the vertical displacement and the lateral displacement of bridge crossbeam 2.
The above; It only is the preferred embodiment of the utility model; Be not that the utility model is done any restriction; Everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of the utility model technical scheme according to the utility model technical spirit.
Claims (10)
1. the two-way supporting arrangement of the flexible girder beam-ends of a bridge; It is characterized in that: comprise that two structures are all identical with size and be laid in the bilateral support on the beam-ends of bridge crossbeam (2) left and right sides respectively; Said bilateral support comprises and is laid in bridge crossbeam (2) the last neoprene bearing (11) and the following neoprene bearing (12) of both sides up and down respectively; Said bridge crossbeam (2) is supported on the bridge lower support structure; Said bridge lower support structure is a reinforced concrete structure, and goes up neoprene bearing (11) and following neoprene bearing (12) clamps the both sides up and down that are fixed on bridge crossbeam (2) through a fixation steel plate and a plurality of pre-embedded bolt (7); Said fixation steel plate is laid in neoprene bearing (11) top, and the bottom of a plurality of said pre-embedded bolts (7) all is embedded in the said bridge lower support structure in advance, and the top of a plurality of said pre-embedded bolt (7) all is fixed on the said fixation steel plate; Said bridge crossbeam (2) is vertical laying with bridge main beam (3), and said bridge main beam (3) is supported and fixed on the bridge crossbeam (2) for flexible beam and its beam-ends.
2. according to the two-way supporting arrangement of the claim 1 flexible girder beam-ends of described a kind of bridge; It is characterized in that: the steel plate one (8) of said fixation steel plate for laying along the beam body center line of bridge crossbeam (2); And the suitable bridge of steel plate one (8) is to the deck-siding of width greater than bridge crossbeam (2); A plurality of said pre-embedded bolts (7) are laid in the left and right sides of bridge crossbeam (2) respectively, and the left and right sides of steel plate one (8) is provided with the bolt mounting holes that supplies pre-embedded bolt (7) to pass.
3. according to the two-way supporting arrangement of the claim 2 flexible girder beam-ends of described a kind of bridge; It is characterized in that: comprise that also filling up the steel plate two (9) and the pad that are contained in neoprene bearing (11) below is contained in the steel plate three (10) between bridge crossbeam (2) and the following neoprene bearing (12); Steel plate two (9) and steel plate three (10) are all laid along the beam body center line of bridge crossbeam (2), and the suitable bridge of steel plate two (9) and steel plate three (10) all is not more than the deck-siding of bridge crossbeam (2) to width.
4. according to the two-way supporting arrangement of the claim 3 flexible girder beam-ends of described a kind of bridge; It is characterized in that: comprise also being laid in the structural bearing pad stone of said bridge lower support (6) that the said pad of neoprene bearing (12) down is contained between bearing pad stone (6) and the bridge crossbeam (2).
5. according to the two-way supporting arrangement of the flexible girder beam-ends of the described a kind of bridge of claim 4, it is characterized in that: said bearing pad stone (6) be positioned at bridge crossbeam (2) under and its be not more than the deck-siding of bridge crossbeam (2) to width along bridge.
6. according to the two-way supporting arrangement of the flexible girder beam-ends of described a kind of bridge of arbitrary claim in the claim 1 to 5; It is characterized in that: a plurality of said pre-embedded bolts (7) divide two rows to lay, and the two said pre-embedded bolts of row (7) respectively symmetry be laid in the left and right sides of bridge crossbeam (2).
7. according to claim 3, the two-way supporting arrangement of the 4 or 5 flexible girder beam-ends of described a kind of bridge; It is characterized in that: said bridge main beam (3) comprises laying a plurality of bridge longerons at grade; A plurality of said bridge longerons are parallel laying, and the beam-ends of a plurality of said bridge longerons all is fixed on bridge crossbeam (2) top; A plurality of said bridge longerons are fastenedly connected through bridge crossbeam (2) and are one, and said bridge main beam (3) is supported and fixed on the said bridge lower support structure through bridge crossbeam (2).
8. according to the two-way supporting arrangement of the claim 5 flexible girder beam-ends of described a kind of bridge; It is characterized in that: said down neoprene bearing (12) be positioned at bearing pad stone (6) directly over; Said go up neoprene bearing (11) be laid in play neoprene bearing (12) directly over, and on neoprene bearing (11) and following neoprene bearing (12) all lay along the beam body center line of bridge crossbeam (2).
9. according to the two-way supporting arrangement of the claim 8 flexible girder beam-ends of described a kind of bridge; It is characterized in that: all the deck-siding with bridge crossbeam (2) is identical to width for the suitable bridge of said bearing pad stone (6) and steel plate three (10); All less than the deck-siding of bridge crossbeam (2), the suitable bridge of said steel plate two (9) is to the deck-siding of width less than bridge crossbeam (2) to width for said structure that goes up neoprene bearing (11) and following neoprene bearing (12) and measure-alike and the two suitable bridge.
10. according to the two-way supporting arrangement of the claim 7 flexible girder beam-ends of described a kind of bridge, it is characterized in that: said bridge crossbeam (2) is made up of the many i iron that are parallel laying, and many said i iron are even laying; A plurality of said bridge longerons are even laying, and said bridge longeron is i iron, all are fixedly connected with welding manner between said bridge crossbeam (2) and steel plate two (9) and the steel plate three (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202064531U CN202116978U (en) | 2011-06-21 | 2011-06-21 | Bidirectional supporting device at flexible girder end of bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202064531U CN202116978U (en) | 2011-06-21 | 2011-06-21 | Bidirectional supporting device at flexible girder end of bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202116978U true CN202116978U (en) | 2012-01-18 |
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ID=45458052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202064531U Expired - Lifetime CN202116978U (en) | 2011-06-21 | 2011-06-21 | Bidirectional supporting device at flexible girder end of bridge |
Country Status (1)
| Country | Link |
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| CN (1) | CN202116978U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109457595A (en) * | 2018-11-28 | 2019-03-12 | 贵阳铝镁设计研究院有限公司 | A kind of main bridge of aluminium alloy overline bridge and ladder access attachment device |
-
2011
- 2011-06-21 CN CN2011202064531U patent/CN202116978U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109457595A (en) * | 2018-11-28 | 2019-03-12 | 贵阳铝镁设计研究院有限公司 | A kind of main bridge of aluminium alloy overline bridge and ladder access attachment device |
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Granted publication date: 20120118 |
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