Leveling device with telescopic function for bridge

Abstract

The utility model relates to the technical field of bridge leveling, and discloses a leveling device with a telescopic function for a bridge, which comprises a bridge body and a cement board, a hydraulic leveling system is contacted below the bridge body, and a detachable supporting mechanism is arranged at the bottom of the hydraulic leveling system. The dismounting supporting mechanism comprises an outer supporting rod, an inner supporting rod, a mounting plate and a dismounting supporting unit, the mounting plate is fixed to the cement board through a bolt, one end of the outer supporting rod is fixed to the mounting plate through a bolt, the other end of the outer supporting rod can allow one end of the inner supporting rod to move, and the other end of the inner supporting rod is fixed to the bridge body through a bolt; when the hydraulic leveling system is disassembled, overhauled or maintained under the action of the disassembling and supporting mechanism, the outer supporting rod and the inner supporting rod can replace the hydraulic leveling system to support the bridge body. And meanwhile, the hydraulic leveling system can be quickly disassembled, so that the overhaul and maintenance time is shortened, and the overall stability of the bridge is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge leveling, in particular to a leveling device with a telescopic function for bridges. Background Art

[0002] A bridge leveling device is a device used to adjust the bridge structure to maintain its stable and safe operation. Its main function is to compensate for the minor deformations or differential settlements of the bridge caused by factors such as temperature changes, traffic loads, and foundation settlements, ensuring that the bridge deck remains horizontal under any circumstances and providing a smooth passage condition for vehicles and pedestrians.

[0003] The bridge leveling device is composed of a telescopic mechanism, a leveling mechanism, sensors, a monitoring system, and a control system. Among them, the leveling mechanism includes a hydraulic leveling system, which is adjusted according to the actual height change of the bridge deck.

[0004] However, the prior art has the following defects:

[0005] When the hydraulic leveling system fails and needs to be repaired or maintained inside, after it is disassembled, the bridge may become unstable, and there will be certain potential safety hazards. Content of the Utility Model

[0006] To solve the technical problem that when the hydraulic leveling system is disassembled for repair and maintenance, a part of the bridge loses support, and there are certain potential safety hazards, the utility model provides a leveling device with a telescopic function for bridges.

[0007] The utility model is realized by the following technical solutions: A leveling device with a telescopic function for bridges.

[0008] It includes a bridge body and a cement board. The hydraulic leveling system is in contact with the lower part of the bridge body, and a disassembly support mechanism is arranged at the bottom of the hydraulic leveling system. The disassembly support mechanism includes an outer support rod, an inner support rod, a mounting plate, and a disassembly support unit. The mounting plate is fixed on the cement board by bolts. One end of the outer support rod is fixed on the mounting plate by bolts, and the other end of the outer support rod can be used for the one end of the inner support rod to move. The other end of the inner support rod is fixed on the bridge body by bolts. The height of the bridge body is adjusted by the hydraulic leveling system, so that the inner support rod can perform telescopic work within a small range inside the outer support rod.

[0009] Through the above technical solutions, under the action of the disassembly support mechanism, when the hydraulic leveling system is disassembled and repaired, the outer support rod and the inner support rod can be used to continue to support the bridge body on the hydraulic leveling system. In cooperation with the leveling mechanism adjacent to the hydraulic leveling system, the outer support rod and the inner support rod can perform a relatively stable supporting role.

[0010] As a further improvement of the above solution, the disassembly support unit includes a sliding installation unit and a rotation limiting unit;

[0011] The sliding installation unit includes a slider and a slide rail. Two slide rails are provided on the mounting plate, and two sliders are fixed to the hydraulic leveling system by bolts. The sliders slide on the slide rails.

[0012] Through the above technical solution, the slider is fixed to the hydraulic leveling system by using bolts, and the slider slides on the slide rail. This makes it more convenient to place the overhauled hydraulic leveling system back under the bridge body, and it is also very smooth when moving the hydraulic leveling system out from under the bridge body.

[0013] As a further improvement of the above solution, the rotation limiting unit includes a movable slot, an inner rotating rod, a gear, a rack, a plug slot, a pressing and fixing unit, and a pulling and squeezing unit. The movable slot is opened on the mounting plate beside the hydraulic leveling system. One end of the inner rotating rod is fixed in the movable slot through a bearing, and the gear is fixed on the inner rotating rod. The gear and the rack form an engaged connection structure. One end of the movable slot is provided with a slideway, and one end of the slideway communicates with the movable slot, and the other end of the slideway communicates with the plug slot. The three form a passage one for the rack to move, and the plug slot is opened on the slider.

[0014] Through the above technical solution, when the inner rotating rod is rotated to drive the gear to push the rack into the plug slot, there is a smooth surface without teeth at one end of the rack close to the gear, and this smooth surface can be inserted into the plug slot. Thus, the position of the slider in the slide rail is fixed, making the position of the hydraulic leveling system more stable.

[0015] As a further improvement of the above solution, the pressing and fixing unit includes a slot, a long rod, an outer rotating rod, and a rotating plate. A vertical sliding component is provided inside the outer rotating rod, and the vertical sliding component is connected to the inner rotating rod. The rotating plate is fixed on the outer rotating rod. Two long rods are fixed on the rotating plate. Long slots are opened on the mounting plate below the long rods for the long rods to pass through. Two slots are opened on the gear, and the long slots and the movable slot communicate with each other to form a passage two for the long rods to move.

[0016] Through the above technical solution, a vertical sliding component is provided inside the outer rotating rod. The vertical sliding component includes a vertical slide rail and a slider. The slider is fixed on the inner rotating rod, and the vertical slide rail is opened inside the outer rotating rod. The slider slides in the vertical slide rail. This enables the rotating plate to drive the outer rotating rod to be pulled upward, and when the rotating plate rotates, it can drive the inner rotating rod, the gear, and the outer rotating rod to rotate together. At the same time, long slots are opened on the mounting plate, allowing the long rods to pass through the long slots and be inserted into the slots, thereby ensuring that the gear cannot rotate.

[0017] As a further improvement of the above solution, the pulling and squeezing unit includes a steel wire groove, a steel wire, a pulley, a sphere, a first spring, a spring groove and an elastic unit. The steel wire groove is opened at one end of the movable groove, and one end of the steel wire groove communicates with the movable groove, and the other end of the steel wire groove communicates with the inside of the outer support rod. The movable groove, the steel wire groove and the inside of the outer support rod communicate with each other to form a third channel for the steel wire to move. One end of the steel wire is fixed on the rack, and the other end of the steel wire passes through the third channel and is fixed on one end of the sphere. The pulley is fixed in the steel wire groove and contacts the steel wire. The spring groove is opened at one end of the inner support rod located inside the outer support rod. One end of the first spring is welded in the spring groove, and the other end of the first spring is welded to the other end of the sphere.

[0018] Through the above technical solution, the steel wire can move more smoothly in the steel wire groove with the setting of the pulley. Also, since the sphere is of a special shape, when one end of the rack is inserted into the insertion rod groove, the steel wire can pull the sphere downwards, stretching the first spring, and then making the sphere slide to the connection point of the sphere and the first spring at one end of the limiting rod, unable to press the two limiting rods, so that the limiting rods are not in the limiting grooves. Then, when the hydraulic leveling system makes a slight adjustment, the inner support rod can move freely inside the outer support rod without being affected.

[0019] As a further improvement of the above solution, the elastic unit includes a moving groove, a sliding sleeve, a sliding rod, a second spring, a limiting rod and a limiting groove. The two moving grooves are opened in the spring groove. A displacement groove is opened in the moving groove, and both ends of the sliding rod are fixed in the displacement groove. The sliding sleeve slides on the sliding rod. One end of the second spring is welded in the displacement groove, and the other end of the second spring is welded to the sliding sleeve. The middle part of the second spring is wound around the sliding rod. One end of the two adjacent sliding sleeves is fixed on the limiting rod. Fixed grooves are opened at both ends of the sphere, and one end of the limiting rod can be inserted into the fixed groove. A plurality of the limiting grooves are all opened on the outer support rod, and the other end of the limiting rod can be inserted into the limiting groove.

[0020] Through the above technical solution, due to the elastic potential energy of the second spring, the limiting rod is always in contact with the sphere, and then drives whether the limiting rod enters the limiting groove to fix the position of the inner support rod. Moreover, since the hydraulic leveling system only makes slight adjustments, the positions among the sphere, the limiting rod and the limiting groove will not be affected by the height of the inner support rod inside the outer support rod.

[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0022] With the function of the disassembly support mechanism, when disassembling, overhauling or maintaining the hydraulic leveling system, the outer support rod and the inner support rod can replace the hydraulic leveling system to support the bridge body. At the same time, the hydraulic leveling system can be quickly disassembled, thus shortening the overhaul and maintenance time and then improving the overall stability of the bridge. Brief Description of the Drawings

[0023] Figure 1 Figure 1 is a front sectional view of a leveling device with a telescopic function for a bridge provided in Embodiment 1 of the present invention;

[0024] Figure 2 Figure 2 is a schematic sectional structure view of the middle part of a leveling device with a telescopic function for a bridge;

[0025] Figure 3 Figure 3 is a three-dimensional structure view of a rotating plate of a leveling device with a telescopic function for a bridge;

[0026] Figure 4 Figure 4 is a leveling device with a telescopic function for a bridge Figure 1 The enlarged structure view at A in;

[0027] Figure 5 Figure 5 is a leveling device with a telescopic function for a bridge Figure 2 The enlarged structure view at B in;

[0028] Figure 6 Figure 6 is a leveling device with a telescopic function for a bridge Figure 5 The enlarged structure view at C in.

[0029] Main Symbol Explanation:

[0030] 1. Bridge body; 2. Cement board; 3. Hydraulic leveling system; 4. Slide block; 5. Slide rail; 6. Outer support rod; 7. Inner support rod; 8. Movable groove; 9. Inner rotating rod; 10. Gear; 11. Slot; 12. Long rod; 13. Outer rotating rod; 14. Rotating plate; 15. Rack; 16. Insertion rod groove; 17. Steel wire groove; 18. Steel wire; 19. Pulley; 20. Sphere; 21. First spring; 22. Spring groove; 23. Moving groove; 24. Slide sleeve; 25. Slide rod; 26. Second spring; 27. Limit rod; 28. Limit groove; 29. Mounting plate. Detailed Embodiment

[0031] Next, in combination with the drawings and specific embodiments, the present invention will be further described. It should be noted that, on the premise of no conflict, any combination of the following described embodiments or technical features can form a new embodiment.

[0032] Embodiment 1:

[0033] Please combine with Figures 1-6 A leveling device with a telescopic function for a bridge in this embodiment includes a bridge body 1 and a cement board 2. A hydraulic leveling system 3 is in contact with the lower part of the bridge body 1, and a disassembly support mechanism is provided at the bottom of the hydraulic leveling system 3. The disassembly support mechanism includes an outer support rod 6, an inner support rod 7, a mounting plate 29, and a disassembly support unit. The mounting plate 29 is fixed to the cement board 2 by bolts. One end of the outer support rod 6 is fixed to the mounting plate 29 by bolts, and the other end of the outer support rod 6 is available for one end of the inner support rod 7 to move. The other end of the inner support rod 7 is fixed to the bridge body 1 by bolts. By adjusting the height of the bridge body 1 through the hydraulic leveling system 3, the inner support rod 7 can perform telescopic work within a small range inside the outer support rod 6.

[0034] The disassembly support unit includes a sliding installation unit and a rotation limiting unit;

[0035] The sliding installation unit includes a slider 4 and a slide rail 5. Two slide rails 5 are opened on the mounting plate 29, and two sliders 4 are fixed to the hydraulic leveling system 3 by bolts. The slider 4 slides on the slide rail 5.

[0036] The rotation limiting unit includes a movable groove 8, an inner rotating rod 9, a gear 10, a rack 15, a plug slot 16, a pressing and fixing unit, and a pulling and squeezing unit. The movable groove 8 is opened on the mounting plate 29 beside the hydraulic leveling system 3. One end of the inner rotating rod 9 is fixed in the movable groove 8 through a bearing, and the gear 10 is fixed on the inner rotating rod 9. The gear 10 and the rack 15 form a meshing connection structure. One end of the movable groove 8 is provided with a slideway, and one sliding end communicates with the movable groove 8, and the other sliding end communicates with the plug slot 16. The three form a channel one for the rack 15 to move. The plug slot 16 is opened on the slider 4.

[0037] The implementation principle of a leveling device with a telescopic function for a bridge in this application is as follows: The telescopic mechanism is the core part of the leveling device, and it is composed of a telescopic rod, a guiding device, and a driving device. The telescopic rod is made of high-strength and corrosion-resistant materials and can withstand the huge forces generated during the telescoping of the bridge. The guiding device ensures that the telescopic rod always moves in the correct direction during the telescoping process to avoid deviation or jamming. A sensor system is provided in the leveling mechanism to monitor the levelness of the bridge deck in real time and feed the data back to the control system. The control system adjusts the thrust or pull of the hydraulic cylinder in the leveling system according to the data of the sensor, so that the bridge body 1 always remains level.

[0038] When maintenance or replacement of the hydraulic leveling system 3 is required, first pull the rotating plate 14 upwards, driving the long rod 12 and the outer rotating rod 13 to move upwards as well. After one end of the long rod 12 moves away from the slot 11 and the mounting plate 29, rotate the rotating plate 14, causing the rotating plate 14 to drive the outer rotating rod 13 to rotate, and the inner rotating rod 9 to drive the gear 10 to rotate. Under the meshing connection of the rack 15 and the gear 10, the rack 15 is driven to move out of the inserting rod groove 16 and move towards the wire groove 17 in the movable groove 8, causing one end of the rack 15 to move away from the inserting rod groove 16. During the movement of the rack 15, under the elastic potential energy of the first spring 21, the outer part of the sphere 20 fits against the limiting rod 27 and moves into the spring groove 22, then compresses the second spring 26, causing the sliding sleeve 24 to slide on the sliding rod 25 towards the limiting groove 28, and then driving the limiting rod 27 to be inserted into the limiting groove 28. When the rack 15 completely moves out of the inserting rod groove 16, the spring groove 22 has fully rebounded, fixing the position of the sphere 20, allowing one end of the limiting rod 27 to be inserted into the limiting groove 28, and the other end of the limiting rod 27 to be limited in the fixing groove opened outside the sphere 20. At this time, the hydraulic leveling system 3 can be gradually moved from between the bridge body 1 and the cement board 2, causing the slider 4 to slide on the slide rail 5. When the hydraulic leveling system 3 completely moves away from the bridge body 1, the two inner support rods 7 cooperate with the outer support rod 6 to support the bridge body 1 to a certain extent, and then can enhance the stability of the bridge body 1 to a certain degree, and the disassembly work can be completed.

[0039] When installation is required, push the hydraulic leveling system 3 below the bridge body 1, causing the inserting rod groove 16 to move to one side of the rack 15 driven by the slider 4. After rotating the rotating plate 14 and inserting the rack 15 into the inserting rod groove 16, the rotating plate 14 cannot be rotated. At this time, the slot 11 is located below the long rod 12. Then press the rotating plate 14 downwards, causing the long rod 12 to pass through the long slot and be fixed on the slot 11, thereby limiting the position of the gear 10.

[0040] Embodiment 2:

[0041] Combined with Figures 1-6 , on the basis of Embodiment 1, the further improvement of this embodiment lies in: the pressing and fixing unit includes a slot 11, a long rod 12, an outer rotating rod 13, and a rotating plate 14. A vertical sliding component is provided inside the outer rotating rod 13, and the vertical sliding component is connected to the inner rotating rod 9. The rotating plate 14 is fixed on the outer rotating rod 13. Two long rods 12 are fixed on the rotating plate 14. A long slot is opened on the mounting plate 29 below the long rod 12 for the long rod 12 to pass through. Two slots 11 are opened on the gear 10. The long slot and the movable groove 8 communicate with each other to form a second channel for the long rod 12 to move.

[0042] The pulling and squeezing unit includes a steel wire groove 17, a steel wire 18, a pulley 19, a sphere 20, a first spring 21, a spring groove 22 and an elastic unit. The steel wire groove 17 is opened at one end of the movable groove 8, and one end of the steel wire groove 17 communicates with the movable groove 8. The other end of the steel wire groove 17 communicates with the inside of the outer support rod 6. The inside of the movable groove 8, the steel wire groove 17 and the outer support rod 6 communicate with each other to form a third channel for the movement of the steel wire 18. One end of the steel wire 18 is fixed on the rack 15, and the other end of the steel wire 18 passes through the third channel and is fixed on one end of the sphere 20. The pulley 19 is fixed in the steel wire groove 17 and contacts the steel wire 18. The spring groove 22 is opened at one end of the inner support rod 7 located inside the outer support rod 6. One end of the first spring 21 is welded in the spring groove 22, and the other end of the first spring 21 is welded to the other end of the sphere 20.

[0043] The elastic unit includes a moving groove 23, a sliding sleeve 24, a sliding rod 25, a second spring 26, a limiting rod 27 and a limiting groove 28. Two moving grooves 23 are opened in the spring groove 22. A displacement groove is opened in the moving groove 23, and both ends of the sliding rod 25 are fixed in the displacement groove. The sliding sleeve 24 slides on the sliding rod 25. One end of the second spring 26 is welded in the displacement groove, and the other end of the second spring 26 is welded to the sliding sleeve 24. The middle part of the second spring 26 is wound around the sliding rod 25. One end of the two adjacent sliding sleeves 24 is fixed on the limiting rod 27. Fixed grooves are opened at both ends of the sphere 20, and one end of the limiting rod 27 can be inserted into the fixed groove. A plurality of limiting grooves 28 are opened on the outer support rod 6, and the other end of the limiting rod 27 can be inserted into the limiting groove 28.

[0044] The above embodiments are only the preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention belong to the scope of protection required by the present invention.

Claims

1. A bridge leveling device with telescopic function, characterized in that: include: A bridge body and a cement slab, wherein the lower part of the bridge body is in contact with a hydraulic leveling system, and a disassembly support mechanism is provided at the bottom of the hydraulic leveling system, wherein the disassembly support mechanism comprises an outer support rod, an inner support rod, a mounting plate and a disassembly support unit, wherein the mounting plate is fixed to the cement slab by bolts, one end of the outer support rod is fixed to the mounting plate by bolts, and the other end of the outer support rod can be made movable by one end of the inner support rod, and the other end of the inner support rod is fixed to the bridge body by bolts, and the height of the bridge body is adjusted by the hydraulic leveling system, so that the inner support rod can be extended and retracted in a small range within the outer support rod.

2. A bridge leveling device with telescopic function as claimed in claim 1, characterized in that: The disassembly support unit includes a sliding installation unit and a rotation limiting unit; The sliding installation unit comprises a sliding block and a sliding rail, two of the sliding rails are arranged on the installation plate, and the two sliding blocks are fixed on the hydraulic leveling system by bolts, and the sliding blocks slide on the sliding rails.

3. A bridge leveling device with telescopic function as claimed in claim 2, characterized in that: The rotation limiting unit includes a movable groove, an inner rotating rod, a gear, a rack, a rod insertion groove, a pressing and fixing unit, and a pulling and squeezing unit. The movable groove is arranged on a mounting plate next to a hydraulic leveling system. One end of the inner rotating rod is fixed in the movable groove by a bearing, and the gear is fixed on the inner rotating rod. The gear and the rack constitute an engaging connection structure. A slideway is arranged at one end of the movable groove, and one sliding end is connected to the movable groove, and the other sliding end is connected to the rod insertion groove. The three form a channel for the rack to move. The rod insertion groove is arranged on a slider.

4. A bridge leveling device with telescopic function as claimed in claim 3, characterized in that: The pressing and fixing unit includes a slot, a long rod, an outer rotating rod and a rotating plate. A vertical sliding component is provided in the outer rotating rod, and the vertical sliding component is connected to the inner rotating rod. The rotating plate is fixed on the outer rotating rod, and the two long rods are fixed on the rotating plate. A long slot is provided on the mounting plate below the long rod for the long rod to pass through. The two slots are provided on the gear, and the long slot and the movable slot are connected to each other to form a second channel for the long rod to move.

5. A bridge leveling device with telescopic function as claimed in claim 3, characterized in that: The pulling and extruding unit includes a wire groove, a steel wire, a pulley, a sphere, a spring one, a spring groove and an elastic unit. The wire groove is opened at one end of the movable groove, and one end of the wire groove is connected to the movable groove, and the other end of the wire groove is connected to the inside of the outer support rod. The movable groove, the wire groove and the inside of the outer support rod are connected to each other to form a channel three for the steel wire to move. One end of the steel wire is fixed on the rack, and the other end of the steel wire passes through the channel three and is fixed to one end of the sphere. The pulley is fixed in the wire groove and contacts with the steel wire. The spring groove is opened at one end of the inner support rod located in the outer support rod. One end of the spring one is welded in the spring groove, and the other end of the spring one is welded to the other end of the sphere.

6. A bridge leveling device with telescopic function as claimed in claim 5, characterized in that: The elastic unit includes a movable groove, a sliding sleeve, a sliding rod, a spring 2, a limiting rod and a limiting groove, two movable grooves are opened in the spring groove, a displacement groove is opened in the movable groove, and two ends of the sliding rod are fixed in the displacement groove, the sliding sleeve slides on the sliding rod, one end of the spring 2 is welded in the displacement groove, and the other end of the spring 2 is welded on the sliding sleeve, the middle part of the spring 2 is wrapped around the sliding rod, the adjacent ends of the two sliding sleeves are fixed on the limiting rod, fixed grooves are opened at both ends of the sphere, and one end of the limiting rod can be inserted in the fixing groove, and multiple limiting grooves are opened on the outer support rod, and the other end of the limiting rod can be inserted in the limiting groove.

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