CN117988207B - Temporary expansion device for bridge - Google Patents
Temporary expansion device for bridge Download PDFInfo
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- CN117988207B CN117988207B CN202410398154.4A CN202410398154A CN117988207B CN 117988207 B CN117988207 B CN 117988207B CN 202410398154 A CN202410398154 A CN 202410398154A CN 117988207 B CN117988207 B CN 117988207B
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- 238000001125 extrusion Methods 0.000 claims description 33
- 238000000034 method Methods 0.000 description 13
- 238000010030 laminating Methods 0.000 description 12
- 238000009434 installation Methods 0.000 description 8
- 230000001105 regulatory effect Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the field of bridges, and discloses a temporary bridge expansion device, wherein two bridge struts are symmetrically arranged, a bridge is arranged between the two bridge struts, the upper ends of the two bridge struts are L-shaped, supporting plates are arranged at the top ends of the two bridge struts, an adjusting device is arranged at the lower ends of the supporting plates, the upper ends of the two bridge struts are fixedly connected with a fixing plate corresponding to the lower ends of the adjusting device, an adjusting rod is arranged at the side ends of the fixing plate, an expansion box is arranged on the side wall of one end of each of the two bridge struts, the side walls of the two bridge struts are movably inserted with expansion columns, the outer ends of the expansion columns are mutually attached to the expansion box, and clamping devices are arranged in the expansion box.
Description
Technical Field
The invention relates to the field of bridges, in particular to a temporary bridge expansion device.
Background
The bridge support is an important structural component for connecting the upper structure and the lower structure of the bridge, is positioned between the bridge and the filler stone, can reliably transfer the load and deformation (displacement and corner) born by the upper structure to the lower structure of the bridge, and is an important force transmission device of the bridge. The device comprises a fixed support and a movable support. The usual support forms for bridge engineering include: the device has the functions of fixing the upper structure to the abutment, bearing various forces acting on the upper structure and reliably transmitting the forces to the abutment, and the support can adapt to the rotation angle and displacement of the upper structure under the actions of load, temperature, concrete shrinkage and creep, so that the upper structure can be freely deformed without generating additional internal force.
For example, chinese patent CN104762874a discloses an assembled bridge seam expansion device and its installation method, which comprises two identical bases and working seams arranged on the inner sides of the two bases, the bases are welded and fixed with reserved steel bars at the seam of the bridge deck through a plurality of anchor plates on the outer sides of the bottoms and connecting steel bars at the front ends below the bottom surfaces, the expansion device further comprises: the damping rubber pad is arranged on the bottom surface of the inner side of the base, and the spring washer is arranged at the lower part of the bolt head of the fixing bolt. The telescopic device has the advantages of simple process, low cost, environmental protection and reliable quality.
For example, chinese patent CN110016859a discloses an assembled multidirectional displacement bridge expansion device and an installation method, which can select different beam installation modes according to different installation requirements, the installation mode is simple, the operation efficiency is high, traffic can be opened after a tooling cover plate is installed and a pavement layer is paved, and the operation period of the whole project is shortened; the assembled multidirectional displacement bridge expansion device integrates the left embedded positioning assembly and the right embedded positioning assembly into a whole through the channel steel, so that the construction of installers is simple, the installation speed is greatly improved, and the embedded positioning assembly and the embedded anchoring rib are installed into a whole to ensure the quality.
However, in the existing method for placing bridges on bridges, with respect to an assembled bridge seam expansion device and an installation method thereof, although the bridge uses an L-shaped placing plate on the bridge struts, the distance between the bridge struts on two sides can be opened by the expansion device, so that the bridge is placed between two bridges conveniently, but the position of the bridge between the placing struts cannot be adjusted, so that the bridge may be inclined, and in the assembled multidirectional displacement bridge expansion device and the installation method, although the bridge can be prefabricated in advance through pre-embedded positioning pieces, the bridge is placed between two bridges, so that the bridge is parallel to the bridge struts on two sides, but the top surfaces of the bridges are very uniform, but cannot be well fixed after the bridge is placed in the bridge seam expansion device, so that the bridge is easy to fall off.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a temporary bridge expansion device, which solves the problems.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a temporary telescoping device of bridge, includes two bridge pillars and bridge, two bridge pillars are mutual symmetry form setting, and are provided with the bridge between two bridge pillars, and the upper end of two bridge pillars is L shape setting, and the top of two bridge pillars all is provided with the backup pad, and the lower extreme of backup pad is provided with adjusting device, and the upper end of two bridge pillars corresponds adjusting device's lower extreme fixedly connected with fixed plate, the side of fixed plate is provided with the regulation pole, and be provided with flexible box on the one end lateral wall that two bridge pillars are mutually trended, and the lateral wall activity grafting of two bridge pillars has flexible post, and laminating each other between the outer end of flexible post and the flexible box, and the inside of flexible box is provided with clamping device.
Preferably, the adjusting device comprises a fixed block, a thread block, a sliding rail, an adjusting plate, a limiting rod and a lifting plate, wherein the fixed block is fixedly connected with one end upper side of each of the two fixed plates, the fixed block is spliced with the adjusting rod, one end thread of the adjusting rod, which is positioned on the inner side of the fixed plate, is sleeved with the thread block, the upper end of the fixed plate corresponds to the side end of the adjusting rod, the sliding rail is fixedly connected with the adjusting plate, the upper end of the sliding rail is movably connected with the adjusting plate, the upper end of the fixed plate corresponds to the side end of the adjusting plate, the limiting rod is fixedly connected with the lifting plate, the lifting plate and the fixed plate are arranged in a mutually perpendicular mode, and the upper end of the lifting plate is fixedly connected with the lower end of the supporting plate.
Preferably, the regulating plate is L shape setting, and is perpendicular form setting between regulating plate and the fixed plate, and the one end and the screw thread piece fixed connection of regulating plate together, and one side fixedly connected with movable block that the regulating plate corresponds the lifter plate, and the movable block is the slope form setting.
Preferably, a movable sleeve is fixedly connected to one side of the lifting plate corresponding to the adjusting plate, the movable sleeve is arranged in an inclined mode, and the movable sleeve and the movable block are movably sleeved together.
Preferably, the upper end of the fixed plate is fixedly connected with a scale corresponding to the side end of the fixed block, the lower end of the supporting plate is fixedly connected with a standard block corresponding to the position of the scale, and the lower end of the standard block is attached to the front end of the scale.
Preferably, the inside activity grafting of adjusting the pole has the second to adjust the pole, and the side swing joint of adjusting the pole has the flitch, and the outer end swing joint of flitch has flexible traveller, and the one end fixedly connected with inserted block of flexible traveller, and the spliced eye has been seted up to the one end of the one end correspondence flitch of adjusting the pole, and the spliced eye extends to one side of second regulation pole, and inserted block and spliced eye activity are pegged graft together, and the second is adjusted the pole and is located one side threaded connection who adjusts the outer end and have the second screw thread piece, and one side of second screw thread piece extends to support the depression bar, and supports the depression bar and laminate together mutually with flexible box.
Preferably, one side of the telescopic column is movably connected with a telescopic sleeve, and one end of the telescopic column is movably connected with the inner wall of the telescopic sleeve through a spring.
Preferably, clamping device includes extrusion piece, places platform, dead lever, clamping lever, laminating piece and spacing post, and the inner wall activity of flexible box is pegged graft and is had the extrusion piece, and the other end of extrusion piece runs through flexible box and extend to be fixed to on the lateral wall of bridge pillar, and fixedly connected with spacing post between the inner wall of flexible box, and fixedly connected with dead lever between the front end inner wall of flexible box, and the position fixedly connected with of the corresponding extrusion piece of dead lever places the platform, and place bench swing joint has two clamping levers, and the rear end fixedly connected with laminating piece of two clamping levers, and two laminating pieces laminate together with extrusion piece mutually.
Preferably, the extrusion piece is the toper form setting, and the extrusion piece gathers together to bridge pillar inner wall direction, and laminating each other between extrusion piece's lateral wall and the two laminating pieces.
Preferably, two the clamping rods are arranged in a Z shape, the inclined walls of the two clamping rods are movably hinged together through a rotating shaft, the rear walls of the two clamping rods are provided with movable grooves, and the two movable grooves are movably clamped with the limiting columns.
Compared with the prior art, the invention provides a temporary bridge expansion device, which has the following beneficial effects:
1. this temporary bridge telescoping device sets up to the bridge pillar of L shape through two its upper ends, and adjusting device, flexible box and clamping device all are located the bridge pillar of L shape, make the bridge place and can prevent that the bridge from droing on two bridge pillars, and the bridge is installed and can be more stable on the bridge pillar of L shape.
2. This temporary telescoping device of bridge through setting up the backup pad in adjusting device's upper end, supports the bridge through the backup pad to utilize adjusting device can highly adjust the height of backup pad, thereby adjusting device can prevent the bridge slope of both sides.
3. This temporary bridge telescoping device through setting up the scale in adjusting device's front end, utilizes adjusting device to adjust both sides bridge level to can record the height that its both sides were adjusted, thereby record both sides pillar horizontally difference, be convenient for later stage record data and improvement.
4. This temporary telescoping device of bridge can support the pressure through adjusting device to flexible box, makes flexible box outwards carry out temporary extrusion and stretches out to make the interval between the flexible box of both sides enlarge, make things convenient for placing of bridge, after placing the bridge, can make flexible box gather together to the centre, thereby make the bridge can press from both sides tightly.
5. This temporary telescoping device of bridge, at flexible box outwards removal in-process, through inside clamping device, not only can increase the interval that the bridge was placed to at outside expansion in-process, the clamping lever in the clamping device is also along with increasing the interval, the bridge of being convenient for is put into between the clamping lever.
6. This temporary telescoping device of bridge, the rear end of two clamping bars is located the both sides of extrusion piece through the laminating piece, is being close to the extrusion in-process to the extrusion piece, can progressively increase the interval between the clamping bars, and after adjusting, loosen the extrusion to flexible box, make flexible box gather together to the centre to make the laminating piece along with the expansion of extrusion piece, make the clamping end reduce gradually, thereby carry out the centre gripping to the bridge fixedly.
7. This temporary telescoping device of bridge through mutually supporting between adjusting device and the clamping device, makes the bridge not only realize paralleling with the bridge pillar of both sides to can fix when the bridge is placed between the bridge pillar, prevent the drop of bridge.
Drawings
FIG. 1 is an external perspective view of the present invention;
FIG. 2 is a schematic side view of a bridge strut according to the present invention;
FIG. 3 is an enlarged schematic illustration of the side ends of the bridge strut of the present invention;
FIG. 4 is a schematic view of the interior of the telescopic case of the present invention;
FIG. 5 is a schematic view of a clamping lever according to the present invention;
FIG. 6 is a schematic view of the upper end of the fixing plate of the present invention;
FIG. 7 is a schematic view of a regulating device according to the present invention;
FIG. 8 is a schematic diagram of the connection of the adjusting plate and the lifting plate according to the present invention;
FIG. 9 is a schematic view of an adjustment lever according to the present invention;
FIG. 10 is a schematic view of the interior of a bridge strut according to the present invention;
FIG. 11 is a schematic view of the upper end of a bridge pillar according to the present invention.
In the figure: 1. bridge struts; 2. a bridge; 3. a telescopic box; 4. a telescopic column; 5. a support plate; 6. a fixing plate; 7. an adjusting rod; 8. a fixed block; 9. a screw block; 10. a slide rail; 11. an adjusting plate; 12. a limit rod; 13. a lifting plate; 14. a moving block; 15. a movable sleeve; 16. a ruler; 17. marking blocks; 18. a second adjusting lever; 19. pasting a board; 20. a telescoping strut; 21. inserting blocks; 22. a plug hole; 23. a second threaded block; 24. a telescopic sleeve; 25. a spring; 26. extruding a block; 27. a placement table; 28. a fixed rod; 29. a clamping rod; 30. a bonding block; 31. a limit column; 32. a movable groove; 33. the pressing rod is abutted against.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-11, a temporary bridge expansion device comprises two bridge struts 1 and a bridge 2, wherein the two bridge struts 1 are arranged symmetrically, a bridge 2 is arranged between the two bridge struts 1, the upper ends of the two bridge struts 1 are arranged in an L shape, support plates 5 are arranged at the top ends of the two bridge struts 1, an adjusting device is arranged at the lower ends of the support plates 5, the upper ends of the two bridge struts 1 are fixedly connected with fixing plates 6 corresponding to the lower ends of the adjusting device, adjusting rods 7 are arranged at the side ends of the fixing plates 6, expansion boxes 3 are arranged on the side walls of one ends of the two bridge struts 1, the side walls of the two bridge struts 1 are movably inserted with expansion columns 4, the outer ends of the expansion columns 4 are mutually attached to the expansion boxes 3, clamping devices are arranged in the expansion boxes 3, when the bridge 2 is placed between the two bridge struts 1, the bridge struts 2 are placed between the bridge struts 1 but are not parallel to each other, the support plates 5 of the bridge struts 2 are driven by the adjusting rods 7 to enable the adjusting devices to be adjusted to be low, the support plates 5 of the bridge struts 2 are enabled to be tightly clamped by the expansion boxes 2, the expansion boxes 2 are enabled to be completely clamped by the expansion boxes 2, and the expansion boxes 2 are enabled to be completely clamped by the expansion boxes 2 when the expansion boxes are completely clamped by the expansion boxes 2, and the expansion boxes are completely clamped by the expansion boxes 2 are completely and the expansion device are used, and the expansion device is prevented from being completely parallel to the expansion device, and the expansion device is used to the two 2 is well when the expansion device is used, and the expansion device is well to be clamped by the expansion device is 3 and is tightly clamped to be tightly clamped by the 2.
Further, adjusting device includes fixed block 8, screw thread piece 9, slide rail 10, regulating plate 11, gag lever post 12 and lifter 13, the one end top fixedly connected with fixed block 8 that two fixed plates 6 are mutually trended, and fixed block 8 is in the same place with adjusting lever 7 grafting, and the screw thread piece 9 has been cup jointed to the one end screw thread that adjusting lever 7 is located the fixed plate 6 inboard, and the upper end of fixed plate 6 corresponds the side fixedly connected with slide rail 10 of adjusting lever 7, and the upper end activity joint of slide rail 10 has regulating plate 11, and the upper end of fixed plate 6 corresponds the side fixedly connected with gag lever post 12 of regulating plate 11, and the side slip joint of gag lever post 12 has lifter 13, and be mutually perpendicular form setting between lifter 13 and the fixed plate 6, and the upper end of lifter 13 is in the same place with the lower extreme fixed connection of backup pad 5.
Further, the adjusting plate 11 is arranged in an L shape, the adjusting plate 11 and the fixed plate 6 are arranged in a vertical shape, one end of the adjusting plate 11 is fixedly connected with the threaded block 9, one side of the adjusting plate 11 corresponding to the lifting plate 13 is fixedly connected with the moving block 14, and the moving block 14 is arranged in an inclined shape.
Further, a movable sleeve 15 is fixedly connected to one side of the lifting plate 13 corresponding to the adjusting plate 11, the movable sleeve 15 is arranged in an inclined mode, and the movable sleeve 15 and the movable block 14 are movably sleeved together.
Further, the upper end of the fixing plate 6 is fixedly connected with a scale 16 corresponding to the side end of the fixing block 8, the lower end of the supporting plate 5 is fixedly connected with a label block 17 corresponding to the scale 16, and the lower end of the label block 17 is attached to the front end of the scale 16.
Further, the second adjusting rod 18 is movably inserted in the adjusting rod 7, the flitch 19 is movably connected to the side end of the adjusting rod 7, the telescopic slide column 20 is movably connected to the outer end of the flitch 19, the inserting block 21 is fixedly connected to one end of the telescopic slide column 20, the inserting hole 22 is formed in one end of the adjusting rod 7 corresponding to one end of the flitch 19, the inserting hole 22 extends to one side of the second adjusting rod 18, the inserting block 21 is movably inserted with the inserting hole 22, the second adjusting rod 18 is located at one side of the outer end of the adjusting rod 7 and is in threaded connection with the second threaded block 23, the pressing rod 33 extends out of one side of the second threaded block 23, and the pressing rod 33 is attached to the telescopic box 3.
The flitch 19 on the adjusting rod 7 is rotated to enable the flitch 19 to be vertical, the telescopic slide column 20 on one side of the upper end of the flitch 19 is extended, the insert block 21 is inserted into the insert hole 22, the adjusting rod 7 and the second adjusting rod 18 are fixed, then the adjusting rod 7 is rotated to enable the second threaded block 23 on the second adjusting rod 18 to move, the pressing rod 33 drives the telescopic box 3 to expand outwards, when the bridge 2 is placed at the upper end of the supporting plate 5 and the plane of the bridge support post 1 is found to be not parallel, then the insert block 21 is loosened, the adjusting rod 7 is rotated to enable the adjusting rod 7 to drive the threaded block 9 to move, the adjusting plate 11 moves on the slide rail 10, the adjusting plate 11 moves, the moving sleeve 15 on the lifting plate 13 moves along with the moving block 14, the lifting plate 13 moves upwards by means of the inclined force through the moving block 14, the supporting plate 5 moves upwards to adjust the level of the bridge 2 and the bridge support post 1, and in the adjusting process, the scale 17 can be marked on the corresponding scale 16 through the moving of the supporting plate 5, so that data can be recorded.
Further, one side of the telescopic column 4 is movably connected with a telescopic sleeve 24, and one end of the telescopic column 4 is movably connected with the inner wall of the telescopic sleeve 24 through a spring 25.
Further, clamping device includes extrusion piece 26, place the platform 27, dead lever 28, clamping lever 29, laminating piece 30 and spacing post 31, the inner wall activity grafting of flexible box 3 has extrusion piece 26, and the other end of extrusion piece 26 runs through flexible box 3 and extends and be fixed to on the lateral wall of bridge pillar 1, and fixedly connected with spacing post 31 between the inner wall of flexible box 3, and fixedly connected with dead lever 28 between the front end inner wall of flexible box 3, and the position fixedly connected with of dead lever 28 corresponds extrusion piece 26 places the platform 27, and place movable connection has two clamping levers 29 on the platform 27, and the rear end fixedly connected with laminating piece 30 of two clamping levers 29, and two laminating pieces 30 are in the same place with extrusion piece 26, after adjusting backup pad 5, utilize second regulation pole 18 to make and support the withdrawal of pressure lever 33, cancel the power to support to flexible box 3, make flexible box 3 gather together to the centre through flexible post 4, and flexible box 3 in the centre-process, laminating piece 30 of two clamping lever 29 rear ends inside flexible box 3 can be along extrusion piece 26, make the bridge 2 hold together more steadily to the middle, thereby realize holding bridge 2 in order to make the centre gripping 2 more to hold together.
Further, the extrusion block 26 is arranged in a conical shape, the extrusion block 26 gathers together towards the inner wall direction of the bridge pillar 1, and the side wall of the extrusion block 26 is mutually attached to the two attaching blocks 30.
Further, the two clamping rods 29 are arranged in a Z shape, the inclined walls of the two clamping rods 29 are movably hinged together through the rotating shaft, the rear walls of the two clamping rods 29 are provided with movable grooves 32, and the two movable grooves 32 are movably clamped with the limiting columns 31.
Working principle: when the bridge 2 is placed between two bridge supports 1, when the bridge 2 is placed between the bridge supports 1 but is not parallel to the plane, the adjusting device is driven by the adjusting rod 7 to enable the supporting plate 5 supporting the bridge 2 to be adjusted in height, so that the plane of the bridge 2 is parallel to the plane of the bridge supports 1, firstly, the flitch 19 on the adjusting rod 7 is rotated, the flitch 19 is vertical, the telescopic slide column 20 on one side of the upper end of the flitch 19 is stretched, the inserting block 21 is inserted into the inserting hole 22, the adjusting rod 7 and the second adjusting rod 18 are fixed, then the adjusting rod 7 is rotated by utilizing the adjusting rod 7, the second threaded block 23 on the second adjusting rod 18 is moved, the telescopic box 3 is driven by the pressing rod 33 to be expanded outwards, when the bridge 2 is placed at the upper end of the supporting plate 5, and the plane of the bridge supports 1 is found to be not parallel, then the inserting block 21 is loosened, the adjusting rod 7 is rotated, the threaded block 9 is driven by the adjusting rod 7 to be moved, the adjusting plate 11 is moved on the sliding rail 10, the adjusting plate 11 is moved, the moving plate 13 is along with the moving block 14, the moving block 14 is moved along with the moving block 14, and the moving plate 14 is moved by utilizing the moving block 13, and the moving force of the moving plate is recorded on the supporting plate 5, and the corresponding moving plate is moved by the moving block 16, and the moving plate is marked on the supporting plate 5, and the moving plate is moved by the moving plate and the moving block is moved by the moving block and the moving block through the moving block 13 and the moving table 14;
After the height of the bridge 2 is adjusted, the adjusting device is used for loosening the extrusion of the telescopic boxes 3, so that the telescopic boxes 3 at two sides gather towards the middle of the bridge 2, in the gathering process of the telescopic boxes 3, the clamping rods 29 are used for clamping the bridge 2 by using the clamping device, the bridge 2 is prevented from falling off, after the supporting plate 5 is adjusted, the second adjusting rod 18 is used for retracting the pressing rods 33, the pressing force on the telescopic boxes 3 is canceled, the telescopic boxes 3 gather towards the middle through the telescopic columns 4, in the gathering process of the telescopic boxes 3 towards the middle, the attaching blocks 30 at the rear ends of the two clamping rods 29 inside the telescopic boxes 3 are gradually enlarged along the side walls of the extrusion blocks 26, so that the clamping ends of the clamping rods 29 gather towards the middle, the bridge 2 is clamped, and the bridge 2 can be more stable on the supporting plate 5.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. Temporary bridge expansion device, including two bridge pillar (1) and bridge (2), its characterized in that: the two bridge supports (1) are symmetrically arranged, a bridge (2) is arranged between the two bridge supports (1), the upper ends of the two bridge supports (1) are L-shaped, the top ends of the two bridge supports (1) are provided with supporting plates (5), the lower ends of the supporting plates (5) are provided with adjusting devices, the upper ends of the two bridge supports (1) are fixedly connected with fixing plates (6) corresponding to the lower ends of the adjusting devices, the side ends of the fixing plates (6) are provided with adjusting rods (7), the side walls of the one ends of the two bridge supports (1) which are approaching to each other are provided with telescopic boxes (3), the side walls of the two bridge supports (1) are movably inserted with telescopic columns (4), the outer ends of the telescopic columns (4) are mutually attached to the telescopic boxes (3), and clamping devices are arranged inside the telescopic boxes (3).
The adjustable sliding rod is characterized in that a second adjusting rod (18) is movably inserted into the adjusting rod (7), a flitch (19) is movably connected to the side end of the adjusting rod (7), a telescopic sliding column (20) is movably connected to the outer end of the flitch (19), an inserting block (21) is fixedly connected to one end of the telescopic sliding column (20), an inserting hole (22) is formed in one end of the adjusting rod (7) corresponding to one end of the flitch (19), the inserting hole (22) extends to one side of the second adjusting rod (18), the inserting block (21) and the inserting hole (22) are movably inserted together, a second thread block (23) is connected to one side of the second adjusting rod (18) located at the outer end of the adjusting rod (7) in a threaded mode, a pressing rod (33) extends from one side of the second thread block (23), and the pressing rod (33) is attached to the telescopic box (3);
one side of the telescopic column (4) is movably connected with a telescopic sleeve (24), and one end of the telescopic column (4) is movably connected with the inner wall of the telescopic sleeve (24) through a spring (25);
The clamping device comprises an extrusion block (26), a placing table (27), fixing rods (28), clamping rods (29), a fitting block (30) and a limiting column (31), wherein the extrusion block (26) is movably inserted into the inner wall of the telescopic box (3), the other end of the extrusion block (26) penetrates through the telescopic box (3) and extends to be fixed on the side wall of the bridge strut (1), the limiting column (31) is fixedly connected between the inner walls of the telescopic box (3), the fixing rods (28) are fixedly connected between the inner walls of the front ends of the telescopic box (3), the fixing rods (28) are fixedly connected with the placing table (27) corresponding to the positions of the extrusion block (26), two clamping rods (29) are movably connected to the placing table (27), the rear ends of the two clamping rods (29) are fixedly connected with the fitting block (30), and the two fitting blocks (30) are fitted with the extrusion block (26);
The extrusion blocks (26) are arranged in a conical shape, the extrusion blocks (26) gather towards the inner wall direction of the bridge strut (1), and the side walls of the extrusion blocks (26) are mutually attached to the two attaching blocks (30);
Two clamping rods (29) are arranged in a Z shape, inclined walls of the two clamping rods (29) are movably hinged together through a rotating shaft, movable grooves (32) are formed in the rear walls of the two clamping rods (29), and the two movable grooves (32) are movably clamped with the limiting columns (31).
2. The temporary bridge expansion device according to claim 1, wherein: the adjusting device comprises fixed blocks (8), threaded blocks (9), sliding rails (10), adjusting plates (11), limiting rods (12) and lifting plates (13), wherein the fixed blocks (8) are fixedly connected to one ends, which are close to each other, of the two fixed plates (6), the fixed blocks (8) are inserted into the adjusting rods (7), the threaded blocks (9) are sleeved on one ends, which are located on the inner sides of the fixed plates (6), of the adjusting rods (7) in threaded mode, the sliding rails (10) are fixedly connected to the upper ends of the fixed plates (6) corresponding to the side ends of the adjusting rods (7), the limiting rods (12) are fixedly connected to the upper ends of the sliding rails (10) corresponding to the side ends of the adjusting plates (11), the limiting rods (12) are in sliding clamping connection with the lifting plates (13), the lifting plates (13) and the fixed plates (6) are arranged in a mutually perpendicular mode, and the upper ends of the lifting plates (13) are fixedly connected to the lower ends of the supporting plates (5).
3. The temporary bridge expansion device according to claim 2, wherein: the adjusting plate (11) is L-shaped, the adjusting plate (11) and the fixing plate (6) are vertically arranged, one end of the adjusting plate (11) is fixedly connected with the threaded block (9), one side of the adjusting plate (11) corresponding to the lifting plate (13) is fixedly connected with the moving block (14), and the moving block (14) is obliquely arranged.
4. A temporary bridge expansion device according to claim 3, wherein: one side of the lifting plate (13) corresponding to the adjusting plate (11) is fixedly connected with a movable sleeve (15), the movable sleeve (15) is obliquely arranged, and the movable sleeve (15) and the movable block (14) are movably sleeved together.
5. The temporary bridge expansion device according to claim 2, wherein: the upper end of the fixed plate (6) is fixedly connected with a scale (16) corresponding to the side end of the fixed block (8), the lower end of the supporting plate (5) is fixedly connected with a mark block (17) corresponding to the position of the scale (16), and the lower end of the mark block (17) is attached to the front end of the scale (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410398154.4A CN117988207B (en) | 2024-04-03 | 2024-04-03 | Temporary expansion device for bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410398154.4A CN117988207B (en) | 2024-04-03 | 2024-04-03 | Temporary expansion device for bridge |
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| Publication Number | Publication Date |
|---|---|
| CN117988207A CN117988207A (en) | 2024-05-07 |
| CN117988207B true CN117988207B (en) | 2024-06-04 |
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| CN202410398154.4A Active CN117988207B (en) | 2024-04-03 | 2024-04-03 | Temporary expansion device for bridge |
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| CN210561750U (en) * | 2019-06-25 | 2020-05-19 | 闫炳恒 | Bridge construction is with support bracket with clamping function |
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| CN218436681U (en) * | 2022-09-14 | 2023-02-03 | 占飞 | Bridge reinforcing device for highway bridge engineering |
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| CN219653533U (en) * | 2023-04-27 | 2023-09-08 | 上海远通路桥工程有限公司 | Bracket convenient to install for bridge construction |
| CN219731713U (en) * | 2022-12-17 | 2023-09-22 | 湖南恒程通瑞路桥工程有限公司 | Pier top bidirectional limiting device for bridge reinforcement |
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