CN113699880A

CN113699880A - Single support supporting structure for bridge and replacing method thereof

Info

Publication number: CN113699880A
Application number: CN202110978662.6A
Authority: CN
Inventors: 张磊; 陈开伟
Original assignee: Jiangsu Poxiang Structural Reinforcement Engineering Co ltd
Current assignee: Jiangsu Poxiang Structural Reinforcement Engineering Co ltd
Priority date: 2021-08-25
Filing date: 2021-08-25
Publication date: 2021-11-26

Abstract

The application relates to a single support supporting structure for a bridge and a replacement method thereof, wherein the single support supporting structure for the bridge comprises two support plates and an anti-seismic assembly arranged between the two support plates, the two support plates are an upper support plate and a lower support plate respectively, a telescopic sleeve is arranged between the two support plates, the anti-seismic assembly is arranged in the telescopic sleeve, and a jacking mechanism for jacking a beam body is arranged between the two support plates; two all be equipped with a plurality of direction spouts on the lateral wall of one side that the bedplate kept away from each other, the gliding is connected with the installation pole in the direction spout, the installation pole is pegged graft with the mounting groove that predetermines on the roof beam body, the pier and is cooperated, be equipped with on the bedplate and be used for driving a plurality of installation poles along the actuating mechanism that the synchronous reciprocal slided of direction spout. The application has the technical effects that: make things convenient for workman to install and remove single support fast, labour saving and time saving.

Description

Single support supporting structure for bridge and replacing method thereof

Technical Field

The application relates to the technical field of bridge construction, in particular to a single-support supporting structure for a bridge and a replacing method thereof.

Background

The bridge support is an important structural component for connecting an upper structure and a lower structure of a bridge, is positioned between a beam body and an abutment, can reliably transfer load and deformation borne by the upper structure of the bridge to the lower structure of the bridge, and is an important force transfer device of the bridge. The bridge support mainly comprises three types of fixed supports, one-way sliding supports and multi-way sliding supports.

Referring to fig. 1 and 2, in the related art, a unidirectional sliding support is also called a single support, and mainly includes an upper support plate 11, a lower support plate 12, and an anti-seismic assembly 2 disposed between the upper support plate 11 and the lower support plate 12, where the anti-seismic assembly 2 includes a pressure-bearing rubber plate 21, a middle steel plate 22, a polytetrafluoroethylene plate 23, and a stainless steel plate 24, which are sequentially disposed from bottom to top; in the use, with upper bracket board 11 fixed through fixing bolt 111 and the diapire of roof beam body 6, with lower support board 12 fixed through fixing bolt 111 and the roof of pier 7 to settle this single support steadily between roof beam body 6 and pier 7, and help slowing down the vibrations that the bridge received under proruption conditions such as earthquake through antidetonation subassembly 2.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: after a period of use, there is the condition of wearing and tearing in the single support, when the workman changed the single support, need earlier respectively unscrew the bolt between single support and the roof beam body, the pier, recycle the jack and replace the jacking position of former single support, take out the back with former single support from between the roof beam body and the pier, place the position of former single support with new single support again and install, waste time and energy.

Disclosure of Invention

In order to solve the problem that time and labor are wasted when workers replace single supports, the application provides a single support supporting structure for a bridge and a replacement method of the single support supporting structure.

The application provides a single support bearing structure for bridge and its change method adopts following technical scheme:

a single support supporting structure for a bridge comprises two support plates and an anti-seismic assembly arranged between the two support plates, wherein the two support plates are an upper support plate and a lower support plate respectively;

two all be equipped with a plurality of direction spouts on the lateral wall of one side that the bedplate kept away from each other, the gliding is connected with the installation pole in the direction spout, the installation pole is pegged graft with the mounting groove that predetermines on the roof beam body, the pier and is cooperated, be equipped with on the bedplate and be used for driving a plurality of installation poles along the actuating mechanism that the synchronous reciprocal slided of direction spout.

By adopting the technical scheme, in an initial state, the single support is abutted between the bottom wall of the beam body and the top wall of the abutment, the mounting rod is stably inserted in the mounting groove, and when the whole bridge is vibrated, the telescopic sleeve is arranged between the two support plates, so that the relative sliding between the two support plates can be realized; the anti-seismic component is stably limited by the telescopic sleeve, so that the buffer on the upper part of the beam body is favorably transferred to the abutment through the single support; when the workman need dismantle old single support, utilize actuating mechanism drive a plurality of installation poles synchronous towards the bedplate in slide to separate with the mounting groove to the workman moves old single support near original mounted position, utilizes climbing mechanism on the old single support to jack the roof beam body again, so that the workman installs new single support in original position department, thereby realizes installing and removing fast of single support, labour saving and time saving.

Optionally, be equipped with in the bedplate and hold the chamber, the direction spout with hold the chamber intercommunication, actuating mechanism includes the linking bridge, the one end of installation pole is passed the direction spout and is stretched into and hold the intracavity, the installation pole stretches into the one end that holds the intracavity and links to each other with the linking bridge, it is equipped with two looks articulated first connecting rods and second connecting rod to hold the intracavity, the one end and the linking bridge of first connecting rod are articulated, the other end of first connecting rod articulates there is first slider, first slider slides and connects on holding the chamber wall in chamber, it is equipped with the fixed plate to hold the intracavity, the one end of second connecting rod articulates there is the second slider, the second slider slides and connects on the linking bridge, the other end of second connecting rod articulates on the lateral wall of fixed plate, be equipped with on the fixed plate and be used for driving second connecting rod pivoted power supply.

Through adopting above-mentioned technical scheme, under the initial state, the installation pole is pegged graft in the mounting groove, when the workman need dismantle old single support, utilizes power supply drive second connecting rod to rotate, because first connecting rod is articulated with the second connecting rod for the second connecting rod drives first connecting rod and rotates, makes first connecting rod and second connecting rod keep away from each other, thereby makes linking bridge drive a plurality of installation poles and accomodate in the bedplate in step, and then realizes the separation of installation pole and mounting groove.

Optionally, the power supply includes the arc rack, the one end of second slider is kept away from at the second connecting rod to the arc rack setting, the fixed plate is located and is connected with drive gear through the pivot rotation on the lateral wall of arc rack one side, drive gear and arc rack toothing, the lateral wall of fixed plate, bedplate is run through in order to the one end of pivot, the coaxial turning block that is equipped with of one end that the bedplate was stretched out in the pivot, be equipped with the locking Assembly who is used for locking the turning block on the lateral wall of bedplate.

Through adopting above-mentioned technical scheme, under the initial state, locking Assembly locks the turning block on the bedplate, when the workman need dismantle single support, release locking Assembly earlier, rotate the turning block again for the turning block drives drive gear through the pivot and rotates, drive gear and arc rack meshing transmission, make the arc rack drive the second connecting rod and rotate, thereby make the second connecting rod drive first connecting rod and rotate, and then realize the synchronous lift of a plurality of installation poles, convenient structure is stable.

Optionally, the locking component includes two supporting blocks that slide and set up on the bedplate lateral wall, two supporting blocks set up the both sides at the turning block about the turning block symmetry, all be equipped with the decorative pattern on the lateral wall of turning block, the relative lateral wall of two supporting blocks, two supporting blocks all are equipped with the screw thread on the lateral wall of one side of keeping away from each other, two supporting block threaded connection has the locking sleeve on the lateral wall.

Through adopting above-mentioned technical scheme, under the initial state, two support tight piece support tightly in the both sides of turning block, and two support tight piece threaded connection in the locking sleeve, when the workman need revolve wrong turning block, revolve earlier revolve wrong locking sleeve to with support tight piece separation, slide the separation with two support tight pieces again, and convenient simple structure.

Optionally, the jacking mechanism includes the oil storage box, it is equipped with logical groove to run through on the roof of oil storage box, it is connected with the piston plate to slide in the oil storage box, be equipped with the jacking rod on the piston plate, the one end that the piston plate was kept away from to the jacking rod supports tightly with the diapire of upper bracket board, the intercommunication has defeated oil pipe on the lateral wall of oil storage box, defeated oil pipe keeps away from the external pressure equipment that is used for the fuel feeding of one end of oil storage box, defeated oil pipe is last to be equipped with the seal assembly.

Through adopting above-mentioned technical scheme, when installation pole and mounting groove separation, the workman releases earlier the seal assembly with after pressurization equipment and defeated oil pipe intercommunication, rethread pressurization equipment and defeated oil pipe's cooperation for the piston plate drives the upward movement of jacking rod, and jacking rod supports the push with the upper bracket board towards the roof beam body diapire, so that this single support stable support is in between the roof beam body and pier.

Optionally, be equipped with the draw-in groove on defeated oil pipe's the inner wall, the seal assembly is including setting up the fixed block on defeated oil pipe, be equipped with in the fixed block with the groove of accomodating of defeated oil pipe intercommunication, it is equipped with the closing plate to accomodate the inslot and slides, the closing plate cooperates with the draw-in groove is pegged graft, be equipped with on the fixed block and be used for driving the closing plate along accomodating the power spare that the groove slided.

By adopting the technical scheme, after the pressurizing equipment finishes oil injection into the oil storage box through the oil conveying pipe, the power part is utilized to drive the closing plate to slide towards the inside of the oil storage box, so that the closing plate is in plug-in fit with the clamping groove, the plugging of the orifice of the oil conveying pipe is realized, and the possibility of oil leakage is reduced.

Optionally, the power part includes and rotates the drive screw who is connected with the fixed block, drive screw's one end runs through the lateral wall of fixed block and stretches into and accomodates the inslot, be equipped with the guide way on defeated oil pipe's the inside wall, the closure plate slides with the guide way and is connected, drive screw and closure plate threaded connection.

By adopting the technical scheme, the closing plate and the oil delivery pipe are closed in the initial state, when oil needs to be injected into the oil storage box, a worker screws the driving screw, and under the guiding action of the guide groove, the driving screw drives the closing plate to slide upwards along the guide groove, so that the bottom end of the closing plate is separated from the oil delivery pipe, and the worker can conveniently utilize the pressurizing equipment to inject oil into the oil storage box.

Optionally, two grooves are formed in the side wall, away from each other, of the support plate, a telescopic guide rod is arranged in each groove, a buffer spring is sleeved on each telescopic guide rod, one end of each buffer spring is connected with each telescopic guide rod, the other end of each buffer spring is connected with the groove wall of each groove, a support block is arranged at one end, away from each groove, of each telescopic guide rod, and a universal wheel is arranged at one end, away from each telescopic guide rod, of each support block.

Through adopting above-mentioned technical scheme, under the initial state, this single support supports when tightly between roof beam body diapire and pier roof, the universal wheel is accomodate in the recess, buffer spring produces deformation and has good elastic restoring force, when this single support need be dismantled to the workman, utilize earlier the fluid in the pressurized equipment absorption oil storage box, make the piston rod fall back, thereby make the interval of two bedplate reduce, and under the effect of the elastic restoring force of spring, make the universal wheel stretch out the recess and with the diapire of roof beam body, the roof of pier supports tightly, thereby reduce two bedplate and roof beam body, frictional force between the pier, and then make things convenient for the workman to slide this single support from between roof beam body and the pier and take out.

Optionally, all extend on the lateral wall of telescopic sleeve top and bottom and have end plate one, end plate one is through bolt one and the diapire of the roof beam body, the roof fixed connection of pier.

Through adopting above-mentioned technical scheme, when upper bracket board or bottom suspension board in the single support took place to damage, need not to change whole single support, utilize end plate one and the cooperation of bolt one, realize installing and removing of telescopic sleeve and two support boards to realize upper bracket board, bottom suspension board and telescopic sleeve's cyclic utilization, and then reach green's requirement.

Optionally, S1: releasing the jacking mechanism on the single support to be replaced to reduce the abutting force between the single support to be replaced and the beam body and the abutment, wherein at the moment, the universal wheel on the upper support plate abuts against the bottom wall of the beam body, and the universal wheel on the lower support plate abuts against the top wall of the abutment;

s2: then, a driving mechanism is used for driving the mounting rods to synchronously slide towards the containing cavity along the guide grooves, so that the single support is separated from the beam body and the abutment;

s3: under the action of the universal wheels, a worker slides the old single support to the position near the installation position;

s4: supporting the old single support between the bottom wall of the beam body and the top wall of the abutment by using a jacking mechanism on the old single support so as to realize stable support of the beam body;

s5: after the new single support is placed at the installation position, the new single support is abutted between the beam body and the abutment by using the jacking mechanism, and then the driving mechanism is used for driving the installation rods to synchronously slide towards the outside of the containing cavity along the guide grooves until the installation rods are in splicing fit with the installation grooves, so that the single support is fixed with the beam body and the abutment;

s6: and after the new single support is installed, releasing the jacking mechanism on the old single support so that a worker can slide and take out the old single support from between the beam body and the abutment, thereby realizing the replacement of the single support.

Through adopting above-mentioned technical scheme, utilize the cooperation of climbing mechanism, telescopic sleeve, actuating mechanism, two bedplate and a plurality of installation pole, realize installing and removing fast of single support, labour saving and time saving.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the single support is quickly assembled and disassembled by utilizing the cooperation of the jacking mechanism, the telescopic sleeve, the driving mechanism, the two support plates and the mounting rods, so that time and labor are saved;

2. the synchronous extension and retraction of a plurality of mounting rods are realized by utilizing the matching of the rotating block, the rotating shaft, the driving gear, the first connecting rod, the second connecting rod, the arc-shaped rack and the connecting bracket, so that the quick assembly and disassembly of the support plate, the beam body and the abutment are realized, and the structure is convenient and stable;

3. the oil delivery pipe is opened and closed by matching the closing plate, the fixing block and the driving screw rod, so that the waste of oil is reduced;

4. by utilizing the matching of the telescopic guide rod, the supporting block, the buffer paralysis and the universal wheels, the single support can be conveniently taken out or placed by sliding between the beam body and the abutment by a worker, and time and labor are saved;

5. the first end plate is matched with the first bolt to realize the assembly and disassembly of the telescopic sleeve and the two support plates, so that the cyclic utilization of the upper support plate, the lower support plate and the telescopic sleeve is realized, and the requirement of environmental protection is further met.

Drawings

Fig. 1 is a schematic view of an overall structure for embodying a single-bearer support structure for bridges in the related art.

Fig. 2 is a schematic view for embodying the structure of a single holder in the related art.

Fig. 3 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 4 is a schematic sectional structure view for showing the connection relationship among the girder, the abutment, the upper support plate, the lower support plate, the anti-seismic assembly, and the driving mechanism in the embodiment of the present application.

Fig. 5 is a schematic cross-sectional view showing a connection relationship between the seat plate and the drive mechanism in the embodiment of the present application.

Fig. 6 is a schematic structural view for embodying the connection relationship among the coupling rod, the mounting rod, and the driving mechanism in the embodiment of the present application.

Fig. 7 is a schematic structural view for showing the connection relationship between the seat plate and the lock assembly in the embodiment of the present application.

Fig. 8 is an enlarged view at a in fig. 7.

Fig. 9 is a schematic sectional view showing the connection relationship between the telescopic tube and the seismic resistant assembly in the embodiment of the present application.

Fig. 10 is an enlarged view at B in fig. 9.

FIG. 11 is a schematic cross-sectional view of a jacking assembly for embodying embodiments of the present application.

Fig. 12 is an enlarged view at C in fig. 11.

Fig. 13 is a schematic sectional view showing a connection relationship among the support plate, the telescopic guide bar, and the universal wheel in the embodiment of the present application.

Fig. 14 is an enlarged view at D in fig. 13.

Description of reference numerals: 1. a support plate; 10. a guide chute; 11. an upper support plate; 111. fixing the bolt; 12. a lower support plate; 13. a containing cavity; 131. a first limiting sliding groove; 14. a groove; 140. a limiting groove; 2. an anti-seismic assembly; 21. a pressure-bearing rubber plate; 22. an intermediate steel plate; 23. a polytetrafluoroethylene sheet; 24. a stainless steel plate; 3. a telescopic sleeve; 30. a first end plate; 31. a first bolt; 32. a first sleeve; 320. a ring groove; 33. a second sleeve; 4. a jacking mechanism; 41. an oil storage box; 410. a through groove; 411. opening the mouth; 42. a piston plate; 43. a jacking rod; 44. an oil delivery pipe; 440. a card slot; 441. a guide groove; 45. a closure assembly; 451. a fixed block; 4510. a receiving groove; 452. a closing plate; 453. a drive screw; 5. mounting a rod; 6. a beam body; 7. pier abutment; 8. mounting grooves; 9. a drive mechanism; 91. connecting a bracket; 911. a connecting rod; 9110. a second limiting sliding chute; 92. a first link; 921. hinging a shaft; 93. a second link; 94. a first slider; 95. a second slider; 96. a fixing plate; 97. a power source; 971. an arc-shaped rack; 972. a rotating shaft; 973. a drive gear; 974. rotating the block; 98. a locking assembly; 981. a propping block; 982. a locking sleeve; 15. a telescopic guide rod; 151. a first guide bar; 1510. a second buffer tank; 152. a second guide bar; 16. a buffer spring; 17. a support block; 171. a limiting rod; 18. a universal wheel; 19. a dovetail groove; 25. a damping spring; 26. a buffer rod; 261. a first support bar; 2610. a first buffer tank; 262. a second support bar; 27. a second end plate; 28. a second bolt; 29. a rubber gasket; 34. a compensation block; 35. and a locking cover.

Detailed Description

The present application is described in further detail below with reference to figures 3-14.

The embodiment of the application discloses single support bearing structure for bridge. Referring to fig. 3 and 4, a single support bearing structure for bridge includes two support boards 1 and sets up the antidetonation subassembly 2 between two support boards 1, two support boards 1 are upper bracket board 11 and lower support board 12 respectively, the shape of the support board 1 of two in the embodiment of this application is the cuboid form, wherein, upper bracket board 11 is used for supporting tightly with the diapire of roof beam body 6, lower support board 12 is used for supporting tightly with the roof of pier 7, equal vertical a plurality of guide chute 10 that are equipped with on the lateral wall that two support boards 1 kept away from each other, the quantity of guide chute 10 in the embodiment of this application uses 8 as an example.

Referring to fig. 3 and 4, the guide sliding groove 10 is connected with the installation rod 5 in a sliding manner, the installation rod 5 is in insertion fit with a mounting groove 8 which is preset on the bottom wall of the beam body 6 and the top wall of the abutment 7, and the support plate 1 is provided with a driving mechanism 9 which is used for driving the installation rods 5 to synchronously slide in a reciprocating manner along the guide sliding groove 10.

Referring to fig. 3 and 4, an expansion sleeve 3 is installed between the opposite side walls of the two support plates 1, the anti-seismic component 2 is arranged in the expansion sleeve 3, the anti-seismic component 2 in the embodiment of the application is consistent with that in the reference document, and two consistent jacking mechanisms 4 are symmetrically arranged on the side wall of one side, opposite to the upper support plate 11, of the lower support plate 12 relative to the side wall of the upper support plate 11 and are symmetrical about the expansion sleeve 3.

Referring to fig. 3 and 4, in the initial state, the single support is stably received on the abutment 7, when an old single support needs to be replaced, a worker drives the plurality of mounting rods 5 to slide towards the guide chutes 10 to be separated from the mounting grooves 8 by using the driving mechanism 9, then releases the jacking mechanism 4 to enable the upper support plate 11 to be far away from the beam body 6, so that the worker can conveniently move the old single support, moves the old single support to the vicinity of the mounting position, supports the old single support between the beam body 6 and the abutment 7 by using the jacking mechanism 4 on the old single support again, so that the worker can conveniently place a new single support between the beam body 6 and the abutment 7, drives the plurality of mounting rods 5 to synchronously slide towards the mounting grooves 8 to be in splicing fit with the mounting grooves 8 by using the driving mechanism 9 after the new single support is placed at the mounting position, and enables the upper support plate 11 to be tightly abutted to the bottom wall of the beam body 6 by using the jacking mechanism 4 on the new single support, and then the jacking mechanism 4 on the old single support is released, so that a worker can take out the old single support, the replacement of the old single support is completed, and time and labor are saved.

Referring to fig. 5 and 6, a containing cavity 13 is arranged in each of the two support plates 1, the guide sliding groove 10 is communicated with the containing cavity 13, and a first limiting sliding groove 131 is arranged on the cavity wall of the containing cavity 13. The driving mechanism 9 includes a connecting bracket 91, a first link 92, a second link 93, a first slider 94, a second slider 95, a fixing plate 96, and a power source 97. The connecting bracket 91 comprises a plurality of connecting rods 911, the cross section of the connecting bracket 91 is similar to a Chinese character mi, because the number of the mounting rods 5 on each support plate 1 in the embodiment of the application is eight as an example, and one connecting rod 911 is connected with two mounting rods 5, the number of the connecting rods 911 in the embodiment of the application is four as an example, and the bottom wall of one connecting rod 911 is provided with a second limit sliding groove 9110.

Referring to fig. 5 and 6, the first connecting rod 92 is hinged to the second connecting rod 93 through a hinge shaft 921, one end of the first connecting rod 92 is hinged to the first sliding block 94, the first sliding block 94 is connected in the first limiting sliding groove 131 in a sliding manner, the other end of the first connecting rod 92 is hinged to the bottom wall of the connecting rod 911 where the second limiting sliding groove 9110 is located, the second sliding block 95 is connected in the second limiting sliding groove 9110 in a sliding manner, one end of the second connecting rod 93 is hinged to the second sliding block 95, and the other end of the second connecting rod 93 is connected to the power source 97.

Referring to fig. 5 and 6, the fixing plate 96 is fixedly connected to the wall of the cavity 13, the power source 97 includes an arc-shaped rack 971, a rotating shaft 972, a driving gear 973, a rotating block 974 and a locking assembly 98, the arc-shaped rack 971 is fixedly connected to one end of the second connecting rod 93 far away from the second slider 95, one end of the rotating shaft 972 penetrates through the side wall of the support plate 1 and extends into the cavity 13, the other end of the rotating shaft 972 extends out of the support plate 1 and is coaxially and fixedly connected with the rotating block 974, and the locking assembly 98 is used for locking the rotating block 974.

Referring to fig. 7 and 8, the locking assembly 98 includes two abutting blocks 981 and a locking sleeve 982, two dovetail grooves 19 are symmetrically arranged on the outer side wall of the support plate 1 about the rotating block 974, one of the abutting blocks 981 is connected in one of the dovetail grooves 19 in a sliding manner, the other abutting block 981 is connected in the other dovetail groove 19 in a sliding manner, patterns are arranged on the peripheral side wall of the rotating block 974 and the side wall opposite to the two abutting blocks 981, threads are arranged on the side wall of the two abutting blocks 981 away from each other, and the inner wall of the locking sleeve 982 is screwed with the threads of the two abutting blocks 981.

Referring to fig. 6 and 8, in an initial state, the two abutting blocks 981 abut against the rotating block 974, and the locking sleeve 982 is screwed with the two abutting blocks 981, when a worker needs to disassemble a single support, the locking sleeve 982 is screwed to be separated from the two abutting blocks 981, then the two rotating blocks 974 are slid away from each other to be away from the driving block, so that the worker rotates the rotating blocks 974, the rotating blocks 974 drive the driving gears 973 to rotate through the rotating shafts 972, and under the meshing action of the arc-shaped racks 971 and the driving gears 973, the second connecting rod 93 and the first connecting rod 92 move relatively, so that the connecting support 91 moves towards the containing cavity 13, the mounting rod 5 moves towards one side away from the mounting groove 8, and the single support is disassembled, and time and labor are saved.

Referring to fig. 4 and 9, the telescopic sleeve 3 comprises a first sleeve 32 and a second sleeve 33, end plates 30 extend from the side wall of the bottom end of the first sleeve 32 and the side wall of the top end of the second sleeve 33, the end plates 30 are fixedly connected with the top wall of the abutment 7 through bolts 31, and the telescopic sleeve 3 is assembled and disassembled by matching the end plates 30 with the bolts 31 so as to be recycled.

Referring to fig. 4 and 9, a ring groove 320 is formed in the top wall of the first sleeve 32, the bottom end of the second sleeve 33 is connected in the ring groove 320 in a sliding manner, a damping spring 25 is arranged between the bottom wall of the second sleeve 33 and the groove wall of the ring groove 320, one end of the damping spring 25 is fixedly connected with the bottom wall of the second sleeve 33, the other end of the damping spring 25 is fixedly connected with the groove bottom wall of the ring groove 320, and a buffer rod 26 penetrates through the damping spring 25.

Referring to fig. 9 and 10, the buffer rod 26 includes a first support rod 261 and a second support rod 262, one end of the first support rod 261 is fixedly connected to the bottom wall of the annular groove 320, a first buffer groove 2610 is provided on the end wall of the other end of the first support rod 261, one end of the second support rod 262 is slidably connected in the first buffer groove 2610, and the other end of the second support rod 262 is fixedly connected to the bottom wall of the second sleeve 33.

Referring to fig. 4 and 9, the anti-seismic assembly 2 is arranged in the telescopic sleeve 3, and the anti-seismic assembly 2 comprises a pressure-bearing rubber plate 21, an intermediate steel plate 22, a polytetrafluoroethylene plate 23 and a stainless steel plate 24 which are arranged in the telescopic sleeve 3 from bottom to top; when the roof beam body 6 receives vibrations, under the guiding effect of telescopic tube 3, relative motion takes place in vertical direction between roof beam body 6 and the pier 7, and under the effect of antidetonation subassembly 2, help dispersing the vibrations that the roof beam body 6 received on the pier 7 steadily.

Referring to fig. 4 and 11, the jacking mechanism 4 includes an oil storage box 41, a piston plate 42, a jacking rod 43, an oil delivery pipe 44 and a pressurizing device, a second end plate 27 extends from the side wall of the bottom end of the oil storage box 41, the second end plate 27 is fixedly connected with the oil storage box 41, the second end plate 27 is detachably connected with the top wall of the lower support plate 12 through a second bolt 28, an opening 411 is formed in the top end of the oil storage box 41, and the piston plate 42 is connected to the inner side wall of the oil storage box 41 in a sliding manner.

Referring to fig. 4 and 11, the bottom end of the lifting rod 43 is fixedly connected to the piston plate 42, the top end of the lifting rod 43 is used for abutting against the support plate 1, the oil delivery pipe 44 penetrates and communicates with the side wall of the bottom end of the oil storage box 41, the oil delivery pipe 44 is fixedly connected with the outer side wall of the oil storage box 41, and the pressurizing device in the embodiment of the present application is used for delivering or pumping oil to increase or decrease the oil pressure in the oil storage box 41.

Referring to fig. 4 and 11, in the initial state, oil is stored in the oil storage box 41, the lifting rod 43 abuts against the bottom wall of the beam body 6, when a worker needs to detach an old single support, the oil in the oil storage box 41 is sucked through the oil pipeline 44 by using a pressurizing device, and along with the reduction of the height of the oil, the piston plate 42 drives the lifting rod 43 to move downwards synchronously, so that the upper support plate 11 is separated from the beam body 6, and the separation of the single support and the beam body 6 is realized.

Referring to fig. 11 and 12, the cross section of the oil delivery pipe 44 is a rectangular frame, a clamping groove 440 is formed in the inner bottom wall of the oil delivery pipe 44, a sealing assembly 45 is arranged on the oil delivery pipe 44, the sealing assembly 45 comprises a fixing block 451, a sealing plate 452 and a power element, the fixing block 451 is fixedly connected to the top wall of the oil delivery pipe 44, a containing groove 4510 communicated with the oil delivery pipe 44 is formed in the fixing block 451, the sealing plate 452 is slidably connected in the containing groove 4510, the bottom end of the sealing plate 452 is in inserted fit with the clamping groove 440, the power element is arranged on the fixing block 451, and the power element is used for driving the sealing plate 452 to slide along the containing groove 4510.

Referring to fig. 11 and 12, the power member includes a driving screw 453, one end of the driving screw 453 penetrates through a top wall of the fixing block 451 and extends into the storage groove 4510, the driving screw 453 is rotatably connected to the fixing block 451, one end of the driving screw 453 located in the storage groove 4510 is threadedly connected to the closing plate 452, and a rubber packing 29 is adhered to a side wall of the closing plate 452 close to the oil storage box 41.

Referring to fig. 11 and 12, one end of the oil delivery pipe 44 far away from the oil storage box 41 is fixedly connected with a compensation block 34, the longitudinal section of the compensation block 34 is circular, and one end of the compensation block 34 far away from the oil storage box 41 is in threaded connection with a locking cover 35; when the oil pipe 44 is filled with oil or is drained with oil, the locking piece 35 is screwed with the compensation block 34, and the possibility of oil leakage is reduced.

Referring to fig. 11 and 12, in an initial state, the closing plate 452 is closed with the oil delivery pipe 44, and when a worker needs to extract oil from the oil storage box 41 by using a pressurizing device, the driving screw 453 is first screwed, and under the guiding action of the accommodating groove 4510, the driving screw 453 drives the closing plate 452 to slide towards the inside of the oil delivery pipe 44 until the closing plate 452 is far away from the clamping groove 440, so that an outlet of the oil delivery pipe 44 is exposed, and the worker can conveniently extract the oil from the oil storage box 41 by using the pressurizing device.

Referring to fig. 13 and 14, two support plates 1 are provided with a groove 14 on the side wall away from each other, a telescopic guide rod 15 is arranged in the groove 14, a buffer spring 16 is sleeved on the telescopic guide rod 15, the telescopic guide rod 15 comprises a first guide rod 151 and a second guide rod 152, one end of the first guide rod 151 is fixedly connected to the groove wall of the groove 14, the other end of the first guide rod 151 is provided with a second buffer groove 1510, one end of the second guide rod 152 is connected to the second buffer groove 1510 in a sliding manner, and the other end of the second guide rod 152 is fixedly connected with a support block 17.

Referring to fig. 13 and 14, a universal wheel 18 is provided at an end of the support block 17 away from the telescopic guide rod 15, one end of the buffer spring 16 is fixedly connected with a bottom wall of the support block 17, and the other end of the buffer spring 16 is connected with a groove wall of the groove 14. The groove wall of the groove 14 is provided with a limiting groove 140, two opposite side walls of the supporting block 17 are extended with a limiting rod 171, the limiting rod 171 is connected with the limiting groove 140 in a sliding manner, and the limiting groove 140 is matched with the limiting rod 171 to play a stable guiding role in the telescopic process of the universal wheel 18.

Referring to fig. 4 and 14, in the initial state, the universal wheel 18 is accommodated in the groove 14, and the buffer spring 16 is in a compressed state and has a good elastic restoring force, after the upper support plate 11 is separated from the beam body 6, under the action of the elastic restoring force of the buffer spring 16, the second guide rod 152 slides towards one end away from the first guide rod 151, so that the universal wheel 18 is kept in a state of abutting against the bottom wall of the beam body 6 or the top wall of the abutment 7, so that a worker can take out an old single support from between the beam body 6 and the abutment 7 in a sliding manner, and time and labor are saved.

The implementation principle of the single-support supporting structure for the bridge in the embodiment of the application is as follows: when a worker needs to replace the single support, the oil in the oil storage box 41 is extracted by matching the pressurizing device with the oil delivery pipe 44, so that the upper support plate 11 is separated from the bottom wall of the beam body 6, and at the moment, under the action of the elastic restoring force of the buffer spring 16, the universal wheel 18 is always kept in a tightly-abutting state with the bottom wall of the beam body 6 or the top wall of the abutment 7.

The workman twists locking sleeve 982 again, make locking sleeve 982 and two support tight piece 981 separation, back of the body slide two support tight piece 981 again to separating with turning block 974, so that the workman twists turning block 974, turning block 974 drives drive gear 973 through pivot 972 and rotates, drive gear 973 meshes the transmission with arc rack 971, make arc rack 971 drive first connecting rod 92 and second connecting rod 93 relative motion, thereby make linking bridge 91 drive a plurality of installation pole 5 synchronous towards hold the intracavity 13 in slide to separate with mounting groove 8, in order to realize single support and roof beam body 6, the synchronous separation of pier 7, and then make things convenient for the workman to move old single support to near of original mounted position.

The workman recycles pressure equipment makes old single support stable support between roof beam body 6 and pier 7, slide new single support to original mounted position again, recycle the jacking subassembly on new single support, make new single support stable support between roof beam body 6 and pier 7, recycle turning block 974, pivot 972, drive gear 973, arc rack 971, the cooperation of first connecting rod 92 and second connecting rod 93, make linking bridge 91 drive a plurality of installation poles 5 towards mounting groove 8 internal slipping to cooperate with mounting groove 8 grafting, thereby realize the installation of new single support, release the jacking subassembly on old single support again, just demolish old single support, thereby realize the change of single support.

The embodiment of the application also discloses a method for replacing the single support supporting structure for the bridge, which comprises the following steps:

s1: workers firstly utilize the matching of a pressurizing device and an oil delivery pipe 44 to pump out part of oil in an oil storage box 41 on an old single support so as to reduce the abutting force between the single support and the beam body 6 and the abutment 7, and at the moment, under the action of a buffer spring 16, the universal wheel 18 is always kept in the abutting state with the bottom wall of the beam body 6 and the top wall of the abutment 7;

s2: screwing the locking sleeve 982 to separate the locking sleeve 982 from the two abutting blocks 981, and sliding the two abutting blocks 981 back to separate from the rotating block 974 so that a worker screws the rotating block 974, the rotating block 974 drives the driving gear 973 to rotate through the rotating shaft 972, the driving gear 973 is in meshing transmission with the arc-shaped rack 971, the arc-shaped rack 971 drives the first connecting rod 92 and the second connecting rod 93 to move relatively, and the connecting support 91 drives the mounting rods 5 to synchronously slide towards the containing cavity 13 to separate from the mounting groove 8, so that the worker separates the old single support from the beam body 6 and the abutment 7;

s3: a worker slides the old single support to the position near the original installation position, and then the jacking mechanism 4 on the old single support is utilized to enable the old single support to stably jack the beam body 6;

s4: after a worker places a new single support at an old installation position, the beam body 6 is jacked by utilizing the jacking mechanism 4 on the new single support, then the rotating block 974 is rotated, so that the rotating block 974 drives the driving gear 973 to rotate through the rotating shaft 972, the driving gear 973 is in meshing transmission with the arc-shaped rack 971, the arc-shaped rack 971 drives the first connecting rod 92 and the second connecting rod 93 to move relatively, and the connecting support 91 drives the installation rods 5 to synchronously slide towards the installation groove 8 to be in splicing fit with the installation groove 8, so that the installation of the new single support is realized;

s5: and then the jacking mechanism 4 on the old single support is released, and under the action of the universal wheels 18, a worker can conveniently take the old single support out of the space between the beam body 6 and the abutment 7, so that the single support can be replaced.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a single support bearing structure for bridge, includes two support boards (1) and sets up antidetonation subassembly (2) between two support boards (1), and two support boards (1) are upper bracket board (11) and bottom suspension fagging (12) respectively, its characterized in that: a telescopic sleeve (3) is arranged between the two support plates (1), the anti-seismic assembly (2) is arranged in the telescopic sleeve (3), and a jacking mechanism (4) for jacking a beam body (6) is arranged between the two support plates (1);

two all be equipped with a plurality of direction spouts (10) on the lateral wall of one side that seat board (1) kept away from each other, the sideslip is connected with installation pole (5) in direction spout (10), installation pole (5) are pegged graft the cooperation with roof beam body (6), predetermined mounting groove (8) on abutment (7), be equipped with on seat board (1) and be used for driving a plurality of installation poles (5) along direction spout (10) synchronous reciprocating sliding's actuating mechanism (9).

2. The single-bearer support structure for a bridge of claim 1, wherein: the supporting seat plate (1) is internally provided with a containing cavity (13), the guide chute (10) is communicated with the containing cavity (13), the driving mechanism (9) comprises a connecting support (91), one end of the installation rod (5) penetrates through the guide chute (10) and extends into the containing cavity (13), one end of the installation rod (5) extending into the containing cavity (13) is connected with the connecting support (91), the containing cavity (13) is internally provided with two first connecting rods (92) and a second connecting rod (93) which are hinged with each other, one end of each first connecting rod (92) is hinged with the connecting support (91), the other end of each first connecting rod (92) is hinged with a first sliding block (94), each first sliding block (94) is connected to the cavity wall of the containing cavity (13) in a sliding manner, a fixing plate (96) is arranged in the containing cavity (13), and one end of each second connecting rod (93) is hinged with a second sliding block (95), the second sliding block (95) is connected to the connecting support (91) in a sliding mode, the other end of the second connecting rod (93) is hinged to the side wall of the fixing plate (96), and a power source (97) used for driving the second connecting rod (93) to rotate is arranged on the fixing plate (96).

3. The single-bearer support structure for a bridge of claim 2, wherein: power supply (97) include arc rack (971), arc rack (971) sets up the one end of keeping away from second slider (95) in second connecting rod (93), fixed plate (96) are located on the lateral wall of arc rack (971) one side and rotate through pivot (972) and are connected with drive gear (973), drive gear (973) and arc rack (971) meshing, the lateral wall of fixed plate (96), bedplate (1) is run through in order to the one end of pivot (972), the coaxial rotating block (974) that is equipped with of one end that bedplate (1) is stretched out in pivot (972), be equipped with locking Assembly (98) that are used for locking rotating block (974) on the lateral wall of bedplate (1).

4. The single-support supporting structure for a bridge of claim 3, wherein: locking Assembly (98) are including sliding two and support tight piece (981) that set up on bedplate (1) lateral wall, two support tight piece (981) and set up the both sides at turning block (974) about turning block (974) symmetry, all be equipped with the decorative pattern on the lateral wall of turning block (974), two support tight piece (981) relative lateral wall, two all be equipped with the screw thread on the lateral wall of the one side of keeping away from each other of support tight piece (981), two threaded connection has locking sleeve (982) on the lateral wall of support tight piece (981).

5. The single-bearer support structure for a bridge of claim 1, wherein: climbing mechanism (4) are including oil storage box (41), it is equipped with logical groove (410) to run through on the roof of oil storage box (41), oil storage box (41) internal slipping is connected with piston plate (42), be equipped with lifting rod (43) on piston plate (42), the one end that piston plate (42) were kept away from in lifting rod (43) supports tightly with the diapire of upper bracket board (11), the intercommunication has defeated oil pipe (44) on the lateral wall of oil storage box (41), defeated oil pipe (44) are kept away from the external pressurization equipment that is used for the fuel feeding of one end of oil storage box (41), be equipped with on defeated oil pipe (44) and seal subassembly (45).

6. The single-bearer support structure for a bridge of claim 5, wherein: be equipped with draw-in groove (440) on the inner wall of defeated oil pipe (44), seal subassembly (45) including setting up fixed block (451) on defeated oil pipe (44), be equipped with in fixed block (451) and accomodate groove (4510) with defeated oil pipe (44) intercommunication, it is equipped with closing plate (452) to accomodate the interior slip of groove (4510), closing plate (452) and draw-in groove (440) cooperation of pegging graft, be equipped with on fixed block (451) and be used for driving closing plate (452) along accomodating the power spare that groove (4510) slided.

7. The single-support supporting structure for a bridge of claim 6, wherein: the power part comprises a driving screw (453) rotatably connected with the fixing block (451), one end of the driving screw (453) penetrates through the side wall of the fixing block (451) and extends into the containing groove (4510), a guide groove (441) is formed in the inner side wall of the oil conveying pipe (44), the closing plate (452) is connected with the guide groove (441) in a sliding mode, and the driving screw (453) is in threaded connection with the closing plate (452).

8. The single-bearer support structure for a bridge of claim 1, wherein: two all be equipped with two recess (14) on the mutual lateral wall of keeping away from of support plate (1), be equipped with flexible guide bar (15) in recess (14), the cover is equipped with buffer spring (16) on flexible guide bar (15), the one end of buffer spring (16) links to each other with flexible guide bar (15), the other end of buffer spring (16) links to each other with the cell wall of recess (14), the one end that is connected with recess (14) is kept away from in flexible guide bar (15) is equipped with supporting shoe (17), the one end that flexible guide bar (15) were kept away from in supporting shoe (17) is equipped with universal wheel (18).

9. The single-bearer support structure for a bridge of claim 1, wherein: all extend on the lateral wall of telescopic sleeve (3) top and bottom and have end plate one (30), end plate one (30) are through the diapire of bolt one (31) and roof fixed connection of pier (7) with the roof of roof beam body (6).

10. A method for replacing a single-abutment support structure for a bridge according to any one of claims 1 to 9, comprising the steps of:

s1: the jacking mechanism (4) on the single support to be replaced is released firstly to reduce the abutting force between the single support to be replaced and the beam body (6) and the abutment (7), at the moment, the universal wheel (18) on the upper support plate (11) abuts against the bottom wall of the beam body (6), and the universal wheel (18) on the lower support plate (12) abuts against the top wall of the abutment (7);

s2: then, a driving mechanism (9) is used for driving the mounting rods (5) to synchronously slide towards the containing cavity (13) along the guide groove (441), so that the single support is separated from the beam body (6) and the abutment (7);

s3: under the action of the universal wheels (18), a worker slides the old single support to the position near the installation position;

s4: supporting the old single support between the bottom wall of the beam body (6) and the top wall of the abutment (7) by using a jacking mechanism (4) on the old single support so as to realize stable support of the beam body (6);

s5: after the new single support is placed at the installation position, the new single support is tightly abutted between the beam body (6) and the abutment (7) by using the jacking mechanism (4), and then the driving mechanism (9) is used for driving the installation rods (5) to synchronously slide towards the outside of the containing cavity (13) along the guide grooves (441) until the installation rods (5) are in splicing fit with the installation grooves (8), so that the single support is fixed with the beam body (6) and the abutment (7);

s6: and after the new single support is installed, releasing the jacking mechanism (4) on the old single support so that a worker can slide and take out the old single support from the position between the beam body (6) and the abutment (7), thereby realizing the replacement of the single support.