CN112211093B

CN112211093B - Bridge telescoping device with regulatory function

Info

Publication number: CN112211093B
Application number: CN202010990319.9A
Authority: CN
Inventors: 李建民; 谷龙起; 李正
Original assignee: Zhongsheng Road & Bridge Technology Group Co ltd
Current assignee: Zhongsheng Road & Bridge Technology Group Co ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2022-03-22
Anticipated expiration: 2040-09-18
Also published as: CN112211093A

Abstract

The utility model belongs to the technical field of telescoping device and specifically relates to a bridge telescoping device with regulatory function is related to, including the boundary beam, well roof beam and adjusting part, the boundary beam all sets up in the expansion joint with well roof beam, the boundary beam all is parallel with expansion joint length direction with well roof beam, boundary beam and well roof beam upside all flushes with the bridge floor, well roof beam all is located between two boundary beams, adjusting part sets up in boundary beam and well roof beam below, bridge telescoping device still includes the calibration subassembly, the calibration subassembly includes slide rail and slide bar, the slide rail is parallel with the boundary beam, two slide rail fixed mounting are in two boundary beams one side of keeping away from well roof beam, slide bar both ends and slide rail horizontal sliding connection, slide bar downside fixedly connected with lug, the lug butt is at adjacent boundary beam and well roof beam, between adjacent boundary beam and the boundary beam. If the middle beam inclines relative to the side beam, the sliding rod can be horizontally pushed relative to the sliding rail by external force, so that the distance between the adjacent middle beams and the middle beam and the distance between the adjacent middle beams and the side beam are recalibrated, and the aim of facilitating operation is fulfilled.

Description

Bridge telescoping device with regulatory function

Technical Field

The application relates to the field of telescoping devices, in particular to a bridge telescoping device with an adjusting function.

Background

At present, when a bridge is built, a telescopic device is usually arranged on a bridge deck, the telescopic device can freely stretch in two directions parallel to and perpendicular to the axis of the bridge, and the telescopic device is required to be firm and reliable.

The concrete structure of the existing bridge expansion device can refer to the utility model patent with the authority bulletin number of CN206204776U, the existing bridge expansion device comprises edge beams, middle beams and adjusting components, expansion joints are arranged on the bridge surface, the expansion joints are vertical to the axis of the bridge, the edge beams and the middle beams are both arranged in the expansion joints, the edge beams and the middle beams are both parallel to the length direction of the expansion joints, the upper sides of the edge beams and the upper sides of the middle beams are both flush with the bridge surface, the number of the edge beams is two, the number of the middle beams is multiple, the middle beams are all positioned between the two edge beams, water stop belts are fixedly connected between the adjacent middle beams and the edge beams, and the number of the adjusting components are uniformly distributed along the length direction of the middle beams; the adjusting assembly comprises a support bracket, a cross beam, a first rubber support, a second rubber support, two telescopic boxes, a third rubber support and a fourth rubber support, the telescopic boxes are box bodies with one side open, one side of each telescopic box, which is far away from the open side, is fixedly arranged on the inner side wall of each expansion joint, the number of the telescopic boxes of each adjusting assembly is two, the two telescopic boxes are respectively arranged at two sides of each expansion joint, the two telescopic boxes are positioned on the same straight line vertical to the middle beam, the two telescopic boxes are respectively positioned below the two side beams, and the lower sides of the side beams are fixedly connected with the upper sides of the telescopic boxes; the middle beam is matched with a support bracket for use, the support bracket comprises a vertical plate and a transverse plate, the vertical plate is vertically arranged below the middle beam, the upper end of the vertical plate is fixedly connected with the lower side of the middle beam, the transverse plate is horizontally arranged, one end of the transverse plate is fixedly connected with the lower end of the vertical plate, the transverse beam is horizontally arranged between the transverse plate and the middle beam, and the length of the transverse beam is greater than the distance between the two side beams; the first rubber support is positioned between the cross beam and the middle beam and fixedly connected with the middle beam, the second rubber support is positioned between the transverse plate and the cross beam and fixedly connected with the transverse plate; two expansion boxes are respectively sleeved at two ends of the beam, the third rubber support is positioned between the upper side of the beam and the expansion boxes, the fourth rubber support is positioned between the lower side of the beam and the expansion boxes, and the third rubber support and the fourth rubber support are both fixedly connected with the expansion boxes. In the use, when the vehicle traveles to the telescoping device on the bridge floor, the bridge floor can produce deformation, and well roof beam can produce horizontal displacement by the relative crossbeam this moment, and vertical deformation can take place for first rubber support, second rubber support, third rubber support and fourth rubber support, therefore the telescoping device can be on the basis of guaranteeing the flexible function of expansion joint, makes the more steady that the vehicle traveled, produces the possibility of jumping suddenly when reducing the vehicle and traveling to the expansion joint.

In the prior art, a bidirectional road is generally arranged on the bridge deck, the driving directions of vehicles on the bridge deck are opposite, when the vehicles drive to the telescopic devices on the bridge deck, the horizontal moving directions of two ends of the middle beam are opposite, after the telescopic devices are used for a long time, the middle beam can incline relative to the side beams, the middle beam can be adjusted to be parallel to the middle beam and the side beams during later maintenance, but in the process of adjusting the middle beam, manual measurement and moving reset are needed, and the operation of adjusting the position of the middle beam is troublesome.

Disclosure of Invention

In order to adjust the middle beam position conveniently, the application provides a bridge telescoping device with regulatory function.

The application provides a bridge telescoping device with regulatory function adopts following technical scheme:

a bridge expansion device with an adjusting function is used for being installed in an expansion joint which is formed in a bridge floor and is perpendicular to the axis of a bridge, and comprises two side beams, a middle beam and adjusting components, wherein the side beams and the middle beam are arranged in the expansion joint, the side beams and the middle beam are parallel to the length direction of the expansion joint, the upper sides of the side beams and the upper side of the middle beam are flush with the bridge floor, the number of the side beams is two, the number of the middle beams is multiple, the middle beams are located between the two side beams, the side beams are fixedly installed on a bridge body on the inner side wall of the expansion joint, water stop belts are fixedly connected between the adjacent middle beams and the side beams, and the adjusting components are arranged below the side beams and the middle beams, the number of the adjusting components is multiple, and the adjusting components are uniformly distributed along the length direction of the middle beams; the adjusting assembly comprises telescopic boxes, a support bracket, a cross beam, a first rubber support, a second rubber support, a third rubber support and a fourth rubber support, the telescopic boxes are box bodies with one side open, one side of each telescopic box, which is far away from the open side, is fixedly arranged on the inner side wall of each expansion joint, the number of the telescopic boxes of each adjusting assembly is two, the two telescopic boxes are respectively arranged on two sides of each expansion joint, the two telescopic boxes are positioned on the same straight line vertical to the middle beam, the two telescopic boxes are respectively positioned below the two side beams, and the lower sides of the side beams are fixedly connected with the upper sides of the telescopic boxes; the middle beam is matched with a support bracket for use, the support bracket comprises a vertical plate and a transverse plate, the vertical plate is vertically arranged below the middle beam, the upper end of the vertical plate is fixedly connected with the lower side of the middle beam, the transverse plate is horizontally arranged, one end of the transverse plate is fixedly connected with the lower end of the vertical plate, the transverse beam is horizontally arranged between the transverse plate and the middle beam, and the length of the transverse beam is greater than the distance between the two side beams; the first rubber support is positioned between the cross beam and the middle beam and fixedly connected with the middle beam, the second rubber support is positioned between the transverse plate and the cross beam and fixedly connected with the transverse plate; the bridge expansion device comprises two expansion boxes, two rubber supports, a fourth rubber support, a calibration assembly, a middle beam, two sliding rails, a sliding rod, a projection and a connecting piece, wherein the two expansion boxes are respectively sleeved at two ends of the cross beam, the third rubber support is positioned between the upper side of the cross beam and the expansion boxes, the fourth rubber support is positioned between the lower side of the cross beam and the expansion boxes, the third rubber support and the fourth rubber support are both fixedly connected with the expansion boxes, the two sliding rails are parallel to the side beams, the two sliding rails are respectively positioned at one side of the two side beams away from the middle beam, the sliding rails are fixedly arranged in the expansion joints, the heights of the upper sides of the sliding rails are flush with the bridge floor, the sliding rods are positioned above the middle beam and the side beams, the sliding rods are perpendicular to the sliding rails, two ends of the sliding rods are horizontally and slidably connected with the sliding rails, the lower sides of the sliding rods are fixedly connected with the projection, the projection is abutted between the adjacent side beams and the middle beam or the adjacent middle beam, the slide rail is fixedly connected with the adjacent side beam, and the expansion boxes are fixedly connected with the lower sides of the expansion boxes, the slide rail upside is seted up flutedly, the recess is provided with the sliding block along slide rail length direction break-over slide rail in the slide rail, pole setting and stopper, the sliding block is placed in the slide rail through the recess, the vertical setting of pole setting, the pole setting lower extreme is articulated with the sliding block upside, the stopper is located pole setting one side, stopper integrated connection is at the sliding block upside, pole setting and stopper butt cooperation, the stopper upside height is less than or equal to slide rail upside height, the cross-sectional diameter of pole setting is less than the distance of sliding block upside to slide rail upside, pole setting upper end and slide bar both ends in two slide rails can be dismantled and be connected.

By adopting the technical scheme, after the bridge expansion device is used for a period of time, if the middle beam inclines relative to the side beam, when the bridge expansion device is checked and maintained, the sliding rod can be horizontally pushed relative to the sliding rail by external force, at the moment, the lug can move along the length direction of the sliding rail, so that the distance between the adjacent middle beam and the distance between the adjacent middle beam and the side beam are recalibrated, then the sliding rod is separated from the sliding rail, the bridge expansion device can continue to work normally, in the process of adjusting the middle beam, manual measurement and moving reset are not needed, the sliding rod is pushed to move along the length direction of the sliding rail by external force, the aim of convenient operation is achieved, the sliding rail is further fixed through the expansion box and the side beam, when a vehicle runs to the expansion device, the possibility that the sliding rail is separated from a bridge floor is reduced, so that the stability of the calibration assembly is improved, the vertical rod is rotated to abut against the limit block, install the slide bar in the pole setting, external force gives the pole setting to the thrust of stopper direction, the lug can remove along slide rail length direction, thereby make adjacent well roof beam and well roof beam, the interval of adjacent well roof beam and boundary beam is recalibrated, after utilizing the adjustment of calibration subassembly well roof beam to well roof beam and boundary beam parallel, can separate slide bar and slide rail, then rotate the pole setting to the recess of slide rail in, the calibration subassembly does not have the part of outstanding bridge floor this moment, reduce the vehicle and go on the bridge floor and take place the possibility of jolting, the steady possibility of state when the increase vehicle traveles to telescoping device.

Preferably, the peripheral wall of the vertical rod is provided with threads, nuts are arranged on the upper side and the lower side of the end part of the sliding rod, the upper ends of the vertical rods in the two sliding rails respectively penetrate through the two ends of the sliding rod, and the nuts are in threaded connection with the vertical rods.

Through adopting above-mentioned technical scheme, when actual telescoping device installation, the interval of waterstop and bridge floor can have the difference, when maintaining the different telescoping device of adjustment, can adjust the slide bar height by pole setting rotating nut relatively, until contactless between lug lower extreme and the waterstop to make the waterstop impaired possibility reduce.

Preferably, the lower end of the bump is provided with a rounded end.

Through adopting above-mentioned technical scheme, at the in-process of calibration subassembly adjustment centre sill position, the position that the interval is less between adjacent centre sill and the centre sill, adjacent boundary beam and centre sill can grow, and the waterstop can be expanded this moment, and the waterstop undermost end can the rebound, if the waterstop undermost end remove to with lug lower extreme department of terminating, the rounding off tip of lug can reduce the possibility that the waterstop is impaired.

Preferably, the bridge telescoping device is provided with the spring, and the spring is perpendicular with well roof beam length direction, and two adjacent well roof beam downside respectively with spring both ends fixed connection, the spring is provided with a plurality ofly, and a plurality of springs distribute along well roof beam length direction.

Through adopting above-mentioned technical scheme, the spring makes and produces the interlock between the well roof beam, and the spring can produce the power that resumes relative position between the well roof beam to the well roof beam, reduces the possibility that well roof beam and adjacent well roof beam relative position changed to improve telescoping device's the flexible effect of level.

Preferably, the middle beam is provided with a limiting part, the limiting part is vertically arranged, the upper end of the limiting part is fixedly connected to the lower side of the middle beam, and the lower end of the limiting part extends to a position lower than the lower side of the first rubber support.

Through adopting above-mentioned technical scheme, when the vehicle passes through the telescoping device, if the crossbeam removes too big along centre sill length direction, the locating part can restrict crossbeam and support bracket separation to the stability of telescoping device structure has been increased.

Preferably, the two sides of the horizontal direction of the cross beam are provided with rollers, the roller between the cross beam and the limiting part is rotatably connected with the limiting part, the roller between the cross beam and the vertical plate is rotatably connected with the vertical plate, and the rollers are parallel to the length direction of the cross beam.

Through adopting above-mentioned technical scheme, when the vehicle passes through the telescoping device, if the crossbeam removes too big along well roof beam length direction, the crossbeam can the butt on the gyro wheel, if the crossbeam removes along the relative locating part of crossbeam length direction this moment, the setting of gyro wheel can reduce the frictional force between crossbeam and locating part and crossbeam and the riser, and the relative locating part removal is changeed to the crossbeam to make the flexible effect of telescoping device better.

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

1. by arranging the sliding rail, the sliding rod and the bump, the middle beam can be adjusted by pushing the sliding rod to move along the length direction of the sliding rail by external force, so that the aim of convenient operation is fulfilled;

2. by arranging the vertical rod, the sliding block and the limiting block, the calibration assembly does not protrude out of the bridge deck after the middle beam is adjusted, so that the aim of increasing the possibility of stable state when a vehicle runs to the telescopic device is fulfilled;

3. through setting up the gyro wheel, make the crossbeam change relative spacing piece and remove, reached the purpose that promotes telescoping device's flexible effect.

Drawings

FIG. 1 is a perspective view of a bridge expansion device with adjustment function according to the present application;

FIG. 2 is a cross-sectional view of a bridge expansion device with adjustment function according to the present application;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is a perspective view highlighting the structure of the position limiting member.

Description of reference numerals: 1. a boundary beam; 2. a middle beam; 3. an adjustment assembly; 31. a telescopic box; 32. a support bracket; 321. a vertical plate; 322. a transverse plate; 33. a cross beam; 34. a first rubber mount; 35. a second rubber support; 36. a third rubber support; 37. a fourth rubber support; 4. a water stop; 5. calibrating the component; 51. a slide rail; 52. a slide bar; 53. a bump; 6. a slider; 7. erecting a rod; 8. a limiting block; 9. a nut; 10. a spring; 11. a limiting member; 12. and a roller.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a bridge telescoping device for install on the bridge floor set up with the bridge axis vertically expansion joint in. Referring to fig. 1, the bridge telescoping device includes boundary beam 1, well roof beam 2 and adjusting part 3, boundary beam 1 all sets up in the expansion joint with well roof beam 2, boundary beam 1 all is parallel with expansion joint length direction with

well roof beam

2, 1 upsides of boundary beam and well roof beam 2 all flush with the bridge floor, boundary beam 1 is provided with two, well roof beam 2 is provided with a plurality ofly, a plurality of well roof beam 2 all are located between two boundary beam 1, boundary beam 1 fixed mounting is on the pontic of expansion joint inside wall, adjacent well roof beam 2 and boundary beam 1, fixedly connected with waterstop 4 between well roof beam 2 and the well roof beam 2, adjusting part 3 sets up in boundary beam 1 and well roof beam 2 below, adjusting part 3 is provided with a plurality ofly, a plurality of adjusting part 3 are along 2 length direction evenly distributed of well roof beam, when the vehicle went to the telescoping device, adjusting part 3 can adjust the position of well roof beam 2 and boundary beam 1 along horizontal direction and vertical direction. In the bridge use, the bridge can produce deformation, the expansion joint makes the bridge scalable, provide the space for bridge deformation, reduce the bridge because deformation produces the extrusion force and the possibility of damaging, the bridge telescoping device is installed in the expansion joint, when the vehicle goes to the telescoping device on the bridge floor, the telescoping device adjusts well roof beam 2 and boundary beam 1's position along horizontal direction and vertical direction this moment, on the basis of guaranteeing the flexible function of expansion joint, the bridge telescoping device can make the more steady that the vehicle went, reduce the vehicle and go to produce the possibility of jumping suddenly when the expansion joint.

Referring to fig. 1 and 2, the adjusting assembly 3 includes a support bracket 32, a cross beam 33, a first rubber support 34, a second rubber support 35, a telescopic box 31, a third rubber support 36 and a fourth rubber support 37, the telescopic box 31 is a box body with an opening at one side, one side of the telescopic box 31 far away from the opening side is fixedly installed on the inner side wall of the expansion joint, two telescopic boxes 31 of each adjusting assembly 3 are provided, the two telescopic boxes 31 are respectively installed at two sides of the expansion joint, the two telescopic boxes 31 are located on the same straight line perpendicular to the middle beam 2, the two telescopic boxes 31 are respectively located below the two side beams 1, and the lower sides of the side beams 1 are fixedly connected with the upper sides of the telescopic boxes 31; the middle beam 2 is matched with a support bracket 32 for use, the support bracket 32 comprises a vertical plate 321 and a transverse plate 322, the vertical plate 321 is vertically arranged below the middle beam 2, the upper end of the vertical plate 321 is fixedly connected with the lower side of the middle beam 2, the transverse plate 322 is horizontally arranged, one end of the transverse plate 322 is fixedly connected with the lower end of the vertical plate 321, the transverse beam 33 is horizontally arranged between the transverse plate 322 and the middle beam 2, and the length of the transverse beam 33 is greater than the distance between the two side beams 1; the first rubber support 34 is positioned between the cross beam 33 and the middle beam 2, the first rubber support 34 is fixedly connected with the middle beam 2, the second rubber support 35 is positioned between the transverse plate 322 and the cross beam 33, and the second rubber support 35 is fixedly connected with the transverse plate 322; two expansion boxes 31 are respectively sleeved at two ends of the cross beam 33, the third rubber support 36 is positioned between the upper side of the cross beam 33 and the expansion boxes 31, the fourth rubber support 37 is positioned between the lower side of the cross beam 33 and the expansion boxes 31, and the third rubber support 36 and the fourth rubber support 37 are both fixedly connected with the expansion boxes 31. When the vehicle traveles to the telescoping device on the bridge floor, the wheel drives 2 relative crossbeams 33 of well roof beam and produces horizontal displacement, first rubber support 34, second rubber support 35, three rubber support and fourth rubber support 37 take place deformation by the pressure in the vehicle, make boundary beam 1 and well roof beam 2 all produce vertical displacement, 2 and well roof beam 2 in this moment, well roof beam 2 can be adjusted with the interval of boundary beam 1, well roof beam 2 can be adjusted with the height of boundary beam 1 simultaneously, consequently, the telescoping device can be along the vehicle of horizontal direction and vertical direction buffering process, on the basis of guaranteeing the flexible function of expansion joint, the bridge telescoping device has reached and has reduced the vehicle and has produced the mesh of jumping abrupt possibility when traveling to the expansion joint.

Referring to fig. 2, the bridge expansion device with the adjusting function further includes a calibration assembly 5, the calibration assembly 5 includes two slide rails 51 and two slide bars 52, the slide rails 51 are parallel to the side beams 1, the two slide rails 51 are respectively located on one side of each of the two side beams 1, which is far away from the middle beam 2, the slide rails 51 are fixedly installed in the expansion joint, the upper side of each slide rail 51 is flush with the bridge floor, the slide bars 52 are located above the middle beam 2 and the side beams 1, the slide bars 52 are perpendicular to the slide rails 51, two ends of each slide bar 52 are horizontally and slidably connected with the slide rails 51, the lower side of each slide bar 52 is fixedly connected with a bump 53, and the bump 53 abuts between the adjacent side beams 1 and the middle beam 2 or between the adjacent middle beam 2 and the middle beam 2. After the bridge telescoping device uses a period, if well roof beam 2 takes place the slope relative to boundary beam 1, when the inspection is maintained, can utilize the relative slide rail 51 level of external force to promote slide bar 52, lug 53 can remove along slide rail 51 length direction this moment, thereby make adjacent well roof beam 2 and well roof beam 2, the interval of adjacent well roof beam 2 and boundary beam 1 is recalibrated, then separate slide bar 52 and slide rail 51, the bridge telescoping device can continue normal work, in the in-process of adjusting well roof beam 2, do not need artifical measurement and move the reduction, only need external force to promote slide bar 52 and remove along slide rail 51 length direction, the purpose of convenient operation has been reached.

The sliding rails 51 are installed in the expansion joints, the sliding rails 51 are fixed only by later concreting, when the vehicle runs to the expansion joint, the vehicle may give a separating force to the sliding rails 51 against the concrete, and at the same time, the sliding rails 51 may be separated from the bridge floor, so that the stability of the calibration assembly 5 is low. In order to increase the stability of the calibration assembly 5, referring to fig. 2, a sliding rail 51 may be fixedly connected to the adjacent edge beam 1, and the lower side of the sliding rail 51 is fixedly connected to the telescopic box 31. The slide rails 51 are further secured by the bellows 31 and the side rails 1, reducing the likelihood of the slide rails 51 breaking free of the deck when the vehicle is driven to the telescopic arrangement, thereby improving the stability of the alignment assembly 5.

Referring to fig. 2 and 3, the slide rail 51 upside is seted up flutedly, the recess is along slide rail 51 length direction break-over slide rail 51, be provided with sliding block 6 in the slide rail 51, pole setting 7 and stopper 8, sliding block 6 is placed in slide rail 51 through the recess, the vertical setting of pole setting 7, the 7 lower extremes of pole setting is articulated with the 6 upside of sliding block, stopper 8 is located pole setting 7 one side, 8 a body coupling of stopper is at the 6 upsides of sliding block, pole setting 7 and the cooperation of 8 butts of stopper, 8 upsides of stopper highly are less than or equal to slide rail 51 upside height, the cross-sectional diameter of pole setting 7 is less than the distance of 6 upsides of sliding block to slide rail 51 upside, can dismantle with slide bar 52 both ends and be connected pole setting 7 upper ends in two slide rails 51. The upright rods 7 are rotated to abut against the limiting blocks 8, the sliding rods 52 are mounted on the upright rods 7, external force pushes the upright rods 7 towards the limiting blocks 8, the convex blocks 53 can move along the length direction of the sliding rails 51, so that the distances between the adjacent middle beams 2 and the adjacent middle beams 2 and between the adjacent side beams 1 are recalibrated, after the middle beams 2 are adjusted to be parallel to the middle beams 2 and the side beams 1 by the calibrating assemblies 5, the sliding rods 52 and the sliding rails 51 can be separated, the upright rods 7 are rotated into the grooves of the sliding rails 51, the calibrating assemblies 5 do not protrude out of the bridge floor, the possibility of bumping when a vehicle runs on the bridge floor is reduced, and the possibility of stable state when the vehicle runs to the telescopic device is increased.

When the actual expansion device is installed, the distance between the water stop 4 and the bridge deck is different, and if the distance between the water stop 4 and the bridge deck is smaller, the bump 53 abuts against the upper surface of the water stop 4, and at this time, the sliding rod 52 slides relative to the sliding rail 51, and the bump 53 wears the water stop 4. In order to reduce the possibility of damaging the water stop 4, referring to fig. 2 and 3, threads may be provided on the peripheral wall of the vertical rod 7, nuts 9 are provided on both upper and lower sides of the end portion of the sliding rod 52, the upper ends of the vertical rods 7 in the two sliding rails 51 respectively penetrate through both ends of the sliding rod 52, and the nuts 9 are in threaded connection with the vertical rods 7. When the actual telescopic device is installed, the distance between the water stop 4 and the bridge floor is different, and when the different telescopic devices are maintained and adjusted, the nut 9 can be rotated relative to the vertical rod 7 to adjust the height of the sliding rod 52 until the lower end of the bump 53 is not in contact with the water stop 4, so that the possibility that the water stop 4 is damaged is reduced.

In order to further reduce the possibility of damage to the water stop 4, referring to fig. 2, the lower end of the bump 53 may be provided as a smooth end, and in the process of adjusting the position of the middle beam 2 by the calibration assembly 5, the positions between the adjacent middle beams 2 and between the

adjacent side beams

1 and 2 with small distance therebetween may become large, at this time, the water stop 4 may be unfolded, the lowermost end of the water stop 4 may move upward, and if the lowermost end of the water stop 4 moves to a position in contact with the lower end of the bump 53, the smooth end of the bump 53 may reduce the possibility of damage to the water stop 4.

The middle beam 2 is displaced relative to the cross beam 33 under the action force of the vehicle, the middle beam 2 may not be restored after the service time is long, and when the distance between the middle beam 2 and the adjacent middle beam 2 is changed, the horizontal telescopic effect of the telescopic device is deteriorated. In order to improve the horizontal telescopic effect of the telescopic device, referring to fig. 4, the bridge telescopic device may include a plurality of springs 10, the springs 10 are perpendicular to the length direction of the middle beam 2, the lower sides of two adjacent middle beams 2 are respectively fixedly connected to two ends of the springs 10, and the springs 10 are distributed along the length direction of the middle beam 2. The springs 10 are used for generating linkage between the middle beams 2, the springs 10 can generate force for restoring the relative positions between the middle beams 2 to the middle beams 2, the possibility of changing the relative positions of the middle beams 2 and the adjacent middle beams 2 is reduced, and therefore the horizontal expansion effect of the expansion device is improved.

In order to reduce the possibility that the cross beam 33 penetrates out of the support bracket 32, referring to fig. 4, a limiting member 11 may be disposed on the middle beam 2, the limiting member 11 is disposed vertically, an upper end of the limiting member 11 is fixedly connected to a lower side of the middle beam 2, and a lower end of the limiting member 11 extends to a position lower than a lower side of the first rubber support 34. When a vehicle passes through the telescopic device, if the cross beam 33 moves too much along the length direction of the middle beam 2, the limiting piece 11 can limit the separation of the cross beam 33 and the support bracket 32, so that the structural stability of the telescopic device is improved.

When a vehicle passes through the telescopic device, if the cross beam 33 moves too much along the length direction of the center sill 2, the cross beam 33 will abut against the limiting member 11 or the vertical plate 321, and at this time, the friction between the cross beam 33 and the limiting member 11 or between the cross beam 33 and the vertical plate 321 is large, so that the telescopic effect of the telescopic device is deteriorated. In order to improve the expansion effect of the expansion device, referring to fig. 4, rollers 12 may be disposed on two sides of the cross beam 33 in the horizontal direction, the roller 12 located between the cross beam 33 and the limiting member 11 is rotatably connected to the limiting member 11, the roller 12 located between the cross beam 33 and the vertical plate 321 is rotatably connected to the vertical plate 321, and the roller 12 is parallel to the cross beam 33 in the length direction. When the vehicle passes through the telescoping device, if crossbeam 33 along 2 length direction on the centre sill remove too big, crossbeam 33 can butt on gyro wheel 12, if crossbeam 33 moved along crossbeam 33 length direction relatively locating part 11 this moment, the setting of gyro wheel 12 can reduce the frictional force between crossbeam 33 and locating part 11 and crossbeam 33 and riser 321, and crossbeam 33 is changeed relatively locating part 11 and is removed to make the flexible effect of telescoping device better.

The implementation principle of the bridge expansion device with the adjusting function is as follows: after the bridge expansion device is used for a period of time, if the middle beam 2 inclines relative to the boundary beam 1, when checking and maintaining, the vertical rod 7 is rotated to a vertical state, two ends of the sliding rod 52 are installed on the vertical rod 7, the height of the sliding rod 52 is proper relative to the vertical rod 7 through the adjusting nut 9, the sliding rod 52 is horizontally pushed relative to the sliding rail 51 by external force, the convex block 53 can move along the length direction of the sliding rail 51, so that the distance between the adjacent middle beam 2 and the distance between the adjacent middle beam 2 and the boundary beam 1 are recalibrated, then the sliding rod 52 is separated from the sliding rail 51, the vertical rod 7 is rotated to a horizontal state, the bridge expansion device can continue to normally work, in the process of adjusting the middle beam 2, manual measurement and moving resetting are not needed, only the external force is needed to push the sliding rod 52 to move along the length direction of the sliding rail 51, and the purpose of convenient operation is achieved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above 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. A bridge expansion device with an adjusting function is used for being arranged in an expansion joint which is arranged on a bridge floor and is vertical to the axis of a bridge, and comprises edge beams (1), middle beams (2) and adjusting assemblies (3), wherein the edge beams (1) and the middle beams (2) are arranged in the expansion joint, the edge beams (1) and the middle beams (2) are parallel to the length direction of the expansion joint, the upper sides of the edge beams (1) and the upper sides of the middle beams (2) are flush with the bridge floor, two edge beams (1) are arranged, the middle beams (2) are provided with a plurality of water stop belts (4), the plurality of middle beams (2) are arranged between the two edge beams (1), the edge beams (1) are fixedly arranged on a bridge body on the inner side wall of the expansion joint, the adjacent middle beams (2) and the edge beams (1), the water stop belts (4) are fixedly connected between the middle beams (2) and the middle beams (2), the adjusting assemblies (3) are arranged below the edge beams (1) and the middle beams (2), and the adjusting assemblies (3) are provided with a plurality of adjusting assemblies, the plurality of adjusting assemblies (3) are uniformly distributed along the length direction of the middle beam (2); the adjusting assembly (3) comprises two telescopic boxes (31), a support bracket (32), a cross beam (33), a first rubber support (34), a second rubber support (35), a third rubber support (36) and a fourth rubber support (37), wherein the telescopic boxes (31) are box bodies with one open side, one side, far away from the open side, of each telescopic box (31) is fixedly installed on the inner side wall of the expansion joint, the number of the telescopic boxes (31) of each adjusting assembly (3) is two, the two telescopic boxes (31) are respectively installed on two sides of the expansion joint, the two telescopic boxes (31) are located on the same straight line perpendicular to the middle beam (2), the two telescopic boxes (31) are respectively located below the two side beams (1), and the lower sides of the side beams (1) are fixedly connected with the upper sides of the telescopic boxes (31); the middle beam (2) is matched with a support bracket (32) for use, the support bracket (32) comprises a vertical plate (321) and a transverse plate (322), the vertical plate (321) is vertically arranged below the middle beam (2), the upper end of the vertical plate (321) is fixedly connected with the lower side of the middle beam (2), the transverse plate (322) is horizontally arranged, one end of the transverse plate (322) is fixedly connected with the lower end of the vertical plate (321), the transverse beam (33) is horizontally arranged between the transverse plate (322) and the middle beam (2), and the length of the transverse beam (33) is greater than the distance between the two side beams (1); the first rubber support (34) is positioned between the cross beam (33) and the middle beam (2), the first rubber support (34) is fixedly connected with the middle beam (2), the second rubber support (35) is positioned between the transverse plate (322) and the cross beam (33), and the second rubber support (35) is fixedly connected with the transverse plate (322); two expansion box (31) cup joint respectively at crossbeam (33) both ends, and third rubber support (36) are located between crossbeam (33) upside and expansion box (31), and fourth rubber support (37) are located between crossbeam (33) downside and expansion box (31), and third rubber support (36) and fourth rubber support (37) all with expansion box (31) fixed connection, its characterized in that: the bridge expansion device further comprises a calibration assembly (5), the calibration assembly (5) comprises slide rails (51) and slide rods (52), the slide rails (51) are parallel to the side beams (1), the slide rails (51) are provided with two slide rails (51), the two slide rails (51) are respectively positioned on one sides of the two side beams (1) far away from the middle beam (2), the slide rails (51) are fixedly installed in an expansion joint, the upper side heights of the slide rails (51) are flush with the bridge floor, the slide rods (52) are positioned above the middle beam (2) and the side beams (1), the slide rods (52) are perpendicular to the slide rails (51), two ends of each slide rod (52) are horizontally and slidably connected with the slide rails (51), the lower sides of the slide rods (52) are fixedly connected with convex blocks (53), the convex blocks (53) abut against the adjacent side beams (1) and the middle beam (2) or between the adjacent middle beam (2) and the middle beam (2), and the slide rails (51) are fixedly connected with the adjacent side beams (1), the lower side of the sliding rail (51) is fixedly connected with the telescopic box (31), the upper side of the sliding rail (51) is provided with a groove, the groove penetrates through the sliding rail (51) along the length direction of the sliding rail (51), a sliding block (6), an upright rod (7) and a limiting block (8) are arranged in the sliding rail (51), the sliding block (6) is placed in the sliding rail (51) through the groove, pole setting (7) vertical setting, pole setting (7) lower extreme is articulated with sliding block (6) upside, stopper (8) are located pole setting (7) one side, stopper (8) a body coupling is at sliding block (6) upside, pole setting (7) and stopper (8) butt cooperation, stopper (8) upside height is less than or equal to slide rail (51) upside height, the cross-sectional diameter of pole setting (7) is less than the distance of sliding block (6) upside to slide rail (51) upside, pole setting (7) upper end and slide bar (52) both ends in two slide rails (51) can be dismantled and be connected.

2. The bridge expansion device with adjustment function of claim 1, wherein: the peripheral wall of the vertical rod (7) is provided with threads, nuts (9) are arranged on the upper side and the lower side of the end part of the sliding rod (52), the upper ends of the vertical rod (7) in the two sliding rails (51) penetrate through the two ends of the sliding rod (52), and the nuts (9) are in threaded connection with the vertical rod (7).

3. The bridge expansion device with adjustment function of claim 1, wherein: the lower end of the lug (53) is provided with a smooth end part.

4. The bridge expansion device with adjustment function of claim 1, wherein: the bridge telescoping device is provided with spring (10), and spring (10) are perpendicular with well roof beam (2) length direction, two adjacent well roof beam (2) downside respectively with spring (10) both ends fixed connection, and spring (10) are provided with a plurality ofly, and a plurality of spring (10) distribute along well roof beam (2) length direction.

5. The bridge expansion device with adjustment function of claim 1, wherein: the middle beam (2) is provided with a limiting piece (11), the limiting piece (11) is vertically arranged, the upper end of the limiting piece (11) is fixedly connected to the lower side of the middle beam (2), and the lower end of the limiting piece (11) extends to a position lower than the lower side of the first rubber support (34).

6. The bridge expansion device with adjustment function of claim 5, characterized in that: the two sides of the horizontal direction of the cross beam (33) are provided with rollers (12), the rollers (12) located between the cross beam (33) and the limiting parts (11) are rotatably connected with the limiting parts (11), the rollers (12) located between the cross beam (33) and the vertical plate (321) are rotatably connected with the vertical plate (321), and the rollers (12) are parallel to the length direction of the cross beam (33).