CN214271658U - Folding and unfolding mechanism for herringbone bridge foot foundation plate assembly - Google Patents
Folding and unfolding mechanism for herringbone bridge foot foundation plate assembly Download PDFInfo
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- CN214271658U CN214271658U CN202022459236.5U CN202022459236U CN214271658U CN 214271658 U CN214271658 U CN 214271658U CN 202022459236 U CN202022459236 U CN 202022459236U CN 214271658 U CN214271658 U CN 214271658U
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- bridge
- winch
- plate assembly
- wire rope
- pulley
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Abstract
The utility model discloses a chevron shape bridge foot foundatin plate subassembly is rolled over and is opened mechanism, include: the winch, the steel wire rope, the torsion bar and the pulley assembly; the winch is arranged on the side edge of the bridge structure, one end of the steel wire rope is connected with the winch, and the other end of the steel wire rope is fixed on the upper column far away from the bridge structure after bypassing the pulley assembly; wherein, chevron shape bridging foot includes: one ends of the two upper columns are hinged on the bridge structure, a torsion bar is arranged between the two upper columns, and the other ends of the two upper columns are respectively hinged with the two ends of the foundation plate assembly through spherical hinges; wherein the base plate assembly is foldable; the middle part of the foundation plate assembly is hinged with the pulley assembly, and when the winch tightens the steel wire rope, the pulley assembly is pulled to move towards the end where the torsion bar of the herringbone bridge is located, so that the foundation plate assembly is driven to be folded, and meanwhile, the torsion bar compresses and stores energy; when the winch loosens the steel wire rope, the torsion bar releases the stored energy to push the foundation plate assembly to unfold and drive the herringbone bridge foot to unfold.
Description
Technical Field
The utility model relates to a modularization bridge foot foundatin plate subassembly expandes folding technical field, concretely relates to chevron shape bridge foot foundatin plate subassembly is rolled over and is exhibited mechanism, especially relates to the expansion and the folding that are used for special type vehicle to carry out many spans in succession to erect, have emergent modularization bridge foot foundatin plate that accompanies nature.
Background
With the development of the modular bridge technology, the obstacle crossing width requirement is wider and wider, and the requirement of the rapidity of the modular bridge erection is met, so that the modular bridge technology which is provided with bridge legs and can be continuously erected in a multi-span manner is continuously developed and promoted. In the process of erecting and withdrawing the modular bridge, the bridge foundation plate needs to be unfolded and/or folded, so that the operation of the bridge foundation plate is a key step for erecting and withdrawing the modular bridge, and the importance of unfolding and folding the bridge foundation plate is highlighted. A mechanism for bridge foot foundatin plate expandes folding can realize not only the expansion folding to modular bridge foot foundatin plate, but also can not influence the normal logical year function of bridge. Therefore, a modular bridge foundation plate unfolding and folding mechanism capable of meeting functional requirements and using requirements needs to be designed.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a chevron shape bridge foot foundatin plate subassembly is rolled over and is expanded mechanism, wherein, roll over and expand the mechanism and can carry out accurate expansion or folding to chevron shape bridge foot foundatin plate subassembly under the condition that does not influence the normal open-load function of bridge, and safe and reliable, easy and simple to handle, save time, laborsaving.
The technical scheme of the utility model is that: a herringbone bridge foundation plate assembly folding and unfolding mechanism comprises: the winch, the steel wire rope, the torsion bar and the pulley assembly;
the winch is arranged on the side edge of the bridge structure, one end of the steel wire rope is connected with the winch, and the other end of the steel wire rope is fixed on the upper column far away from the bridge structure after bypassing the pulley assembly; wherein, chevron shape bridging foot includes: one ends of the two upper columns are hinged on the bridge structure, a torsion bar is arranged between the two upper columns, and the other ends of the two upper columns are respectively hinged with the two ends of the foundation plate assembly through spherical hinges; wherein the base plate assembly is foldable;
the middle part of the foundation plate assembly is hinged with the pulley assembly, and when the winch tightens the steel wire rope, the pulley assembly is pulled to move towards the end where the torsion bar of the herringbone bridge is located, so that the foundation plate assembly is driven to be folded, and meanwhile, the torsion bar compresses and stores energy; when the winch loosens the steel wire rope, the torsion bar releases the stored energy to push the foundation plate assembly to unfold and drive the herringbone bridge foot to unfold.
Preferably, the base plate assembly comprises: two big foundatin plates and two little foundatin plates, two little foundatin plates are articulated as an organic wholely through the ball pivot, and its both ends articulate a big foundatin plate through the ball pivot respectively, are equipped with the ball pivot mounting hole on two big foundatin plates for articulate with two upper columns of chevron shape bridging foot respectively.
Preferably, the sheave assembly includes: the device comprises a shell, a U-shaped pulley, a pulley shaft and a support lug; the utility model discloses a wire rope, including the shoe-shaped pulley, the shoe-shaped pulley is connected with the shoe-shaped pulley.
Preferably, a guide groove is installed on the upper column close to the bridge structure for guiding the steel wire rope.
Preferably, the guide groove is located in the middle of the upper column in the height direction.
Preferably, the winch is provided with an overturning structure, so that the winch can be overturned by 180 degrees relative to the bridge deck of the bridge structure, and the switching between the working state and the loading state of the winch is realized; wherein the open load condition requires the winch to be located below or level with the deck.
Preferably, the winch is further provided with a locking structure for locking the winch at a corresponding position after the overturning structure overturns the winch to a set position.
Has the advantages that:
1. the folding and unfolding mechanism of the utility model has compact structure, safety and reliability, does not affect the loading function of the bridge, and can flexibly control the unfolding and folding state switching of the herringbone bridge foundation plate assembly; the operation is simple and convenient, and all operations can be finished by one person; the operation time is short, the efficiency is high, and the flexible adjustment of the whole erection and withdrawal processes of the modular bridge can be matched.
2. The utility model discloses well loose pulley assembly's concrete setting couples together two upper columns and foundatin plate subassembly of chevron shape bridge foot, can accomplish the whole exhibition of rolling over of chevron shape bridge foot and foundatin plate subassembly with capstan winch and wire rope cooperation and move.
3. The utility model discloses the guide way that sets up on well upper prop can be for the wire rope direction, makes wire rope walk around loose pulley assembly smoothly, avoids taking place the winding.
Drawings
Fig. 1 is a schematic view of the folding state of the herringbone bridge foot-based plate folding and unfolding mechanism of the present invention.
Fig. 2 is the schematic view of the unfolding process of the herringbone bridge foundation plate folding and unfolding mechanism of the utility model.
Fig. 3 is a schematic structural diagram of the middle torsion bar of the present invention.
Fig. 4 is a schematic structural view of the middle upper column of the present invention.
Fig. 5 is a schematic structural view of the middle pulley of the present invention.
Fig. 6 is a schematic structural view of the foundation plate assembly of the present invention.
The device comprises a winch 1, a steel wire rope 2, a torsion bar 3, a steel pipe 4, an upper column 5, a pulley assembly 6, a foundation plate assembly 7, a U-shaped pulley 8, a pulley shaft 9 and a support lug 10.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings by way of examples.
This embodiment provides a chevron shape bridge foot foundatin plate subassembly is rolled over and is expanded mechanism, can carry out accurate expansion or folding to chevron shape bridge foot foundatin plate subassembly under the condition that does not influence the normal function that carries of bridge, and safe and reliable, easy and simple to handle, save time, laborsaving.
As shown in fig. 1, the mechanism includes: winch 1, wire rope 2, torsion bar 3, steel pipe 4 and pulley assembly 6.
The connection relationship of the mechanism is as follows: two groups of herringbone bridge feet are symmetrically arranged on two sides of the bridge structure, and each group of herringbone bridge feet are connected through a foundation plate component 7; specifically explaining the herringbone bridge foot and the foundation plate assembly on one side, a winch 1 is installed on the side edge of the bridge structure, one end of a steel wire rope 2 is connected with the winch 1, and the other end of the steel wire rope bypasses a pulley assembly 6 and is fixed on an upper column 5 of the herringbone bridge foot; wherein, chevron shape bridging foot includes: two upper columns 5, as shown in fig. 3 and 4, one end of each of the two upper columns 5 is provided with an ear plate hole, a steel pipe 4 penetrates through the ear plate holes of the two upper columns 5 to realize the hinging of the two upper columns 5, a torsion bar 3 is arranged between the two upper columns 5 at the end, when the two upper columns 5 rotate in opposite directions, the torsion bar 5 compresses and stores energy, and the other end of the torsion bar is hinged with two ends of a base plate assembly 7 through a spherical hinge;
the middle part of the foundation plate assembly 7 is hinged with pulley assemblies 6 (one pulley assembly 6 is arranged between two upper columns 5 of each group of herringbone bridge feet), the end of the torsion bar 3 of each herringbone bridge foot is hinged on the bridge structure, when the winch 1 tightens the steel wire rope 2, the pulley assembly 6 is pulled to move towards the end of the torsion bar 3 of the herringbone bridge, the foundation plate assembly 7 is driven to be folded, and meanwhile, the torsion bar 3 compresses and stores energy; on the contrary, when the winch 1 loosens the steel wire rope 2, the torsion bar 3 releases the stored energy to push the foundation plate assembly 7 to be unfolded and drive the herringbone bridge foot to be unfolded.
The working principle of the mechanism is as follows: as shown in fig. 2, the winch 1 controls the steel wire rope 2 to tighten or loosen through a hydraulic control system matched with the winch, and then the foundation plate assembly 7 of the herringbone bridge foot is unfolded or folded by combining the torsion action of the torsion bar 3, so that the foundation plate assembly 7 of the herringbone bridge foot can be switched between an unfolded state and a folded state according to the use requirement, and the herringbone bridge foot is unfolded or folded to drive the two ends of the foundation plate assembly 7 to move coordinately;
further, as shown in fig. 6, the base plate assembly 7 includes: two big foundatin plates and two little foundatin plates, two little foundatin plates are articulated as an organic wholely through the ball pivot, and its both ends articulate a big foundatin plate through the ball pivot respectively, are equipped with the ball pivot mounting hole on two big foundatin plates for articulate with two upper posts 5 of chevron shape bridge foot respectively.
Further, as shown in fig. 5, the sheave assembly 6 includes: the device comprises a shell, a U-shaped pulley 8, a pulley shaft 9 and a support lug 10; the one end of journal stirrup 10 is fixed with the shell, and the other end is articulated with the articulated department of two little foundatin plates in foundatin plate subassembly 7 middle part, and U-shaped pulley 8 passes through pulley shaft 9 and supports in the shell, and U-shaped pulley 8 is walked around to wire rope 2, and U-shaped pulley 8 can be to wire rope 2 along its circumferential motion direction, and spacing to wire rope 2 along its axial motion.
Furthermore, a guide groove (such as channel steel) is arranged on the upper column 5 close to the bridge structure and used for guiding the steel wire rope 2, so that the steel wire rope 2 smoothly bypasses the pulley assembly 6 and is prevented from winding; wherein, the guide way is located in the middle of the upper column 5 in the height direction.
Further, the winch 1 is provided with an overturning structure, so that the winch 1 can be overturned by 180 degrees relative to the bridge deck of the bridge structure, and the switching between the working state and the loading state of the winch 1 is realized; wherein the open load condition requires the winch 1 to be located below or level with the deck.
Further, capstan winch 1 still disposes locking structure, and upset structure is with capstan winch 1 upset to the position of setting after with it locking in corresponding position department, guarantees that the bridge structures is firm when the through-load state.
In summary, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a chevron shape bridge foundatin plate subassembly is rolled over and is opened up mechanism which characterized in that includes: the device comprises a winch (1), a steel wire rope (2), a torsion bar (3) and a pulley assembly (6);
the winch (1) is arranged on the side edge of the bridge structure, one end of the steel wire rope (2) is connected with the winch (1), and the other end of the steel wire rope is fixed on an upper column (5) far away from the bridge structure after bypassing the pulley assembly (6); wherein, chevron shape bridging foot includes: one ends of the two upper columns (5) are hinged to the bridge structure, a torsion bar (3) is arranged between the two upper columns (5), and the other ends of the two upper columns (5) are hinged to two ends of the foundation plate assembly (7) through spherical hinges respectively; wherein the base plate assembly (7) is foldable;
the middle part of the foundation plate component (7) is hinged with the pulley component (6).
2. A herringbone bridge foot base plate assembly folding and unfolding mechanism as claimed in claim 1, wherein said base plate assembly (7) comprises: the two small foundation plates are hinged into a whole through a spherical hinge, the two ends of the two small foundation plates are hinged with one large foundation plate through the spherical hinge respectively, and the two large foundation plates are provided with spherical hinge mounting holes for being hinged with two upper columns (5) of the herringbone bridge foot respectively.
3. A herringbone bridge foundation plate assembly folding and unfolding mechanism as claimed in claim 2, wherein said pulley assembly (6) comprises: the device comprises a shell, a U-shaped pulley (8), a pulley shaft (9) and a support lug (10); journal stirrup (10) one end is fixed with the shell, and the other end is articulated with articulated department of two little foundatin plates in foundatin plate subassembly (7) middle part, U-shaped pulley (8) support in the shell through pulley shaft (9), and U-shaped pulley (8) are walked around in wire rope (2), and U-shaped pulley (8) can be to wire rope (2) along its circumferential motion direction, and spacing to wire rope (2) along its axial motion.
4. A herringbone bridge foundation plate assembly folding and unfolding mechanism as claimed in claim 1, wherein guide grooves are installed on said upper columns (5) near the bridge structure for guiding the wire ropes (2).
5. A herringbone bridge foundation plate assembly folding and unfolding mechanism according to claim 4, wherein the guide groove is located in the middle of the upper column (5) in the height direction.
6. A herringbone bridge foundation plate assembly folding and unfolding mechanism according to claim 1, characterized in that the winch (1) is provided with a turning structure, which can turn the winch (1) 180 ° relative to the deck of the bridge structure, so as to realize the switching between the working state and the loading state of the winch (1); wherein the open load condition requires the winch (1) to be located below or flush with the deck.
7. A herringbone bridge foundation plate assembly folding and unfolding mechanism according to claim 1, characterized in that the winch (1) is further provided with a locking structure, and when the overturning structure overturns the winch (1) to a set position, it is locked at the corresponding position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022459236.5U CN214271658U (en) | 2020-10-29 | 2020-10-29 | Folding and unfolding mechanism for herringbone bridge foot foundation plate assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022459236.5U CN214271658U (en) | 2020-10-29 | 2020-10-29 | Folding and unfolding mechanism for herringbone bridge foot foundation plate assembly |
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| CN214271658U true CN214271658U (en) | 2021-09-24 |
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| CN202022459236.5U Active CN214271658U (en) | 2020-10-29 | 2020-10-29 | Folding and unfolding mechanism for herringbone bridge foot foundation plate assembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112252163A (en) * | 2020-10-29 | 2021-01-22 | 中国船舶重工集团应急预警与救援装备股份有限公司 | Folding and unfolding mechanism for herringbone bridge foot foundation plate assembly |
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2020
- 2020-10-29 CN CN202022459236.5U patent/CN214271658U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112252163A (en) * | 2020-10-29 | 2021-01-22 | 中国船舶重工集团应急预警与救援装备股份有限公司 | Folding and unfolding mechanism for herringbone bridge foot foundation plate assembly |
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