Bridge splicing construction equipment and construction method thereof

Abstract

The application relates to the technical field of bridges, and particularly discloses a bridge splicing construction equipment and a construction method thereof, which comprises a protection mechanism, a spraying mechanism, a driving mechanism installed on the protection mechanism and two slag pushing mechanisms arranged on the two sides of the bottom of the driving mechanism respectively, the two slag pushing mechanisms are symmetrically distributed in the interior of the protection mechanism, the driving mechanism can relatively move the two slag pushing mechanisms and can drive the slag pushing mechanisms to ascend and descend, the bridge splicing construction equipment and the construction method thereof, the driving mechanism can drive the two slag pushing components to relatively move horizontally, the slag pushing plate can push the broken slag to the direction away from the breaking and tearing seam, the protection mechanism can avoid pushing the broken slag into the breaking and tearing seam when moving subsequently, and the cleaning difficulty of the subsequent seam gap is reduced.

Description

Technical Field

[0001] This invention relates to the field of bridge technology, specifically to a bridge splicing construction equipment and its construction method. Background Technology

[0002] A bridge generally refers to a structure erected over rivers, lakes, or seas to allow vehicles and pedestrians to pass smoothly. To adapt to the rapidly developing modern transportation industry, the term "bridge" has also come to refer to structures built across mountains, challenging geological conditions, or to meet other transportation needs, making travel more convenient. During bridge reconstruction and expansion, it is necessary to first remove the crash barriers on the splicing side of the widened section of the old bridge, and then remove a certain thickness and width of pavement layer from the bridge deck, retaining the reinforcing steel bars in the wing plates. After the new bridge deck is erected, the wet joint construction at the splicing point is carried out.

[0003] Chinese patent application CN119531273A discloses a water jet demolition device and its demolition method. The water jet demolition device and its demolition method include a main structure, an auxiliary support structure, a nozzle structure and a control structure. The main structure is movably installed on the road surface. The auxiliary support structure is installed on the side of the main structure away from the crash barrier. The nozzle structure includes a mounting base and a nozzle. The mounting base is movably installed at the end of the main structure and the nozzle is rotatably installed on the mounting base. The nozzle structure also includes a stop member, which is installed on the side of the nozzle structure closer to the road surface.

[0004] The structural design of the aforementioned technologies involves the following: During the process of breaking up the concrete pavement of a bridge, the mounting base needs to cover the area to be broken, while the stop component needs to be in contact with the road surface to block debris. During the concrete breaking process, this debris typically falls onto the road surface near the sides of the break joint. As the mounting base moves, the stop component can easily pull the debris from both sides of the break joint inwards, causing it to fall into the break joint or become lodged inside exposed reinforcing steel, thus increasing the difficulty of subsequent cleaning of the gap.

[0005] Therefore, a bridge splicing construction equipment and its construction method are proposed to solve the problems mentioned above. Summary of the Invention

[0006] This invention provides a bridge splicing construction equipment and construction method, aiming to solve the problem that the stop components in related technologies easily carry debris into the demolition joint.

[0007] The bridge splicing construction equipment of the present invention includes a protective mechanism and a spraying mechanism, and also includes a drive mechanism installed on the protective mechanism and two slag pushing mechanisms respectively arranged on both sides of the bottom of the drive mechanism. The two slag pushing mechanisms are symmetrically distributed inside the protective mechanism. The drive mechanism can make the two slag pushing mechanisms move relative to each other and can also drive the slag pushing mechanisms to lift and lower.

[0008] The slag pushing mechanism includes an installation assembly mounted on the drive mechanism, a slag pushing assembly rotatably connected to the installation assembly, and two transmission assemblies respectively mounted on both sides of the installation assembly; the slag pushing assembly includes a rotating drum rotatably connected to the installation assembly and slag pushing parts mounted on the outside of the rotating drum, with at least two slag pushing parts, and the two transmission assemblies are connected to both ends of the rotating drum, and the transmission assemblies can drive the rotating drum to rotate when moving laterally on the ground.

[0009] The slag pusher includes a connecting plate mounted on the rotating drum and a slag pusher plate that slides elastically along the length of the connecting plate. After the drive mechanism drives the slag pusher plate and the transmission assembly to contact the road surface, the two slag pusher mechanisms move away from each other. At this time, the transmission assembly drives the rotating drum to rotate, so that the slag pusher plate pushes the slag to move to both sides of the demolition joint.

[0010] When dismantling the bridge pavement, a drive mechanism drives two slag-pushing mechanisms to move synchronously and relative to each other, ensuring that the slag-pushing mechanisms are always positioned on both sides of the dismantling joint. When the drive mechanism moves the slag-pushing mechanisms downward, the slag-pushing plates and transmission components come into contact with the road surface, putting the slag-pushing mechanisms into operation. As the drive mechanism continues to drive, it can cause the two slag-pushing components to move laterally relative to each other, allowing the slag-pushing plates to push the debris away from the dismantling joint, preventing the protective mechanism from pushing the debris into the dismantling joint during subsequent movement. During the lateral movement of the slag-pushing components, the transmission components can also drive the slag-pushing components to rotate, thereby pushing newly generated debris behind the slag-pushing components toward the debris pile, reducing the risk of debris falling into the dismantling joint.

[0011] Preferably, the transmission assembly includes a mounting cover, a first rotating shaft, a roller, a first gear, a second gear, a second rotating shaft, and a connecting shaft. The mounting cover is installed on one side of the mounting assembly. The first rotating shaft, the second rotating shaft, and the connecting shaft are all rotatably connected to the mounting cover. The roller is installed on the first rotating shaft, and its bottom passes through the mounting cover and can contact the road surface. The first gear and the second gear mesh and are respectively installed on the outside of the first rotating shaft and the second rotating shaft. The second rotating shaft is drivenly connected to the connecting shaft. One end of the connecting shaft is connected to the rotating drum.

[0012] During the lateral movement of the slag pushing mechanism, the rollers on the transmission assembly contact the road surface, which drives the first rotating shaft to rotate. At this time, the first rotating shaft drives the first gear to rotate, the first gear drives the meshing second gear to rotate, the second gear drives the second rotating shaft to rotate, the second rotating shaft drives the connecting shaft to rotate, thereby enabling the connecting shaft to drive the rotating drum to rotate, and in turn driving the slag pushing plate to rotate and push the slag.

[0013] Preferably, the slag pushing assembly further includes an air supply pipe located inside the rotating drum and an air inlet pipe installed at one end of the air supply pipe. The air supply pipe has an opening facing the slag pile. One end of the air inlet pipe passes through the rotating drum and extends to the outside of the rotating drum. A channel for the air inlet pipe to pass through is opened on the connecting shaft on the same side as the air inlet pipe. One end of the air inlet pipe also passes through the mounting cover on the same side as it and is installed on the mounting cover. An air groove is opened on the outer side of the rotating drum and on the side near the connecting plate.

[0014] During the process of the pusher plate moving the slag, when the pusher plate moves out of the slag pile, external gas is introduced through the air inlet pipe, which allows the gas to enter the air supply pipe. At this time, the air supply pipe guides the gas into the air groove on the rotating drum through its opening. The air groove blows the gas toward the pusher plate and the connecting plate, thereby blowing the slag stuck to the pusher plate and the connecting plate off to the slag pile, avoiding the slag adhesion affecting the slag pushing effect.

[0015] Preferably, the driving mechanism includes a driving component, a guide rail, two hinge components, and two limiting components. One end of each of the two hinge components is hinged to the bottom sides of the driving component, and the other ends of each of the two hinge components are slidably disposed on the inner sides of the guide rail. The driving component is disposed on the protective mechanism. The two mounting components are disposed on the other ends of the two hinge components. The two limiting components are disposed on the inner walls of the protective mechanism. The guide rail is slidably disposed between the two limiting components.

[0016] Preferably, the drive assembly includes a mounting frame, a lead screw, a slide bar, a threaded block, a fixing post, and a fixing plate. The mounting frame is mounted on the top of the protective mechanism. The lead screw is rotatably connected to the mounting frame. The threaded block is threadedly connected to the lead screw and slidably connected to the slide bar. The fixing post is disposed on the threaded block. The fixing plate is mounted on the fixing post and is hinged to two hinge components respectively.

[0017] Preferably, the hinge assembly includes a hinge arm, a slider, and a limiting member. The two ends of the hinge arm are respectively hinged to the fixed plate and the slider. The slider is slidably connected inside the guide rail. The mounting assembly is installed at the bottom of the slider, and the limiting member is installed on the top side of the slider.

[0018] Preferably, the limiting component includes a slide bar and two elastic members. The slide bar is vertically installed on the inner wall of the protective mechanism and slidably connected to the guide rail. A limiting groove is formed on one side of the slide bar, and the two elastic members are respectively disposed at the bottom of the inner wall of the limiting groove.

[0019] During the movement of the guide rail, the slider is slidably connected to the guide rail, which guides the movement of the guide rail and keeps the guide rail in vertical lifting and horizontal movement.

[0020] Preferably, the limiting groove includes a first groove, a connecting groove, and a second groove, which are sequentially formed on the slide bar from bottom to top. The first groove and the second groove have the same depth and width. The connecting groove is T-shaped and connects to the first groove and the second groove. The surface width of the connecting groove on the slide bar is smaller than the width of the second groove.

[0021] Preferably, the elastic element includes a limiting block and an elastic sheet, and a groove is formed on the inner wall of the first groove to be fixed to one end of the elastic sheet, and the limiting block is installed at the other end of the elastic sheet.

[0022] When the slag pushing assembly moves to its limit position, the limiting member inserts into the first groove. At this time, under the restriction of the limiting block, the two sliders cannot get close to each other. Then, under the reverse drive of the drive mechanism, the slider can move upward. At the same time, the limiting block moves from the first groove to the connecting groove. At this time, the connecting groove can restrict the limiting block from disengaging from the slide bar, so that the slider can continue to move upward. When the limiting block enters the second groove, the guide rail moves upward to the limit position, and the slag pushing assembly is completely removed from the slag pile to prevent the slag pushing assembly from directly resetting laterally and bringing the slag back.

[0023] The bridge splicing construction method of the present invention, using the aforementioned bridge splicing construction equipment, includes the following steps:

[0024] S1: Move the construction equipment to the location to be demolished, and cover the demolition area with the protective mechanism;

[0025] S2: The spraying mechanism fires high-pressure water jets from within the protective mechanism to break down the bridge pavement layer;

[0026] S3: The drive mechanism drives the two slag pushing mechanisms to move down, so that the slag pushing plate and roller contact the road surface. Then the drive mechanism drives the two slag pushing mechanisms to move away from each other from both sides of the demolition joint. The roller rotates and drives the drum to rotate, so that the slag pushing plate pushes the debris away from the demolition joint.

[0027] S4: When a slag pusher plate moves out of the slag pile, the gas in the air supply pipe is blown out through the air groove, blowing off the slag stuck to the connecting plate and the slag pusher plate.

[0028] S5: When the slag pushing mechanism moves to the limit position, the limiting part is inserted into the first groove; the drive mechanism reverses the drive, causing the slag pushing mechanism to rise vertically, avoiding bringing the slag back to the demolition joint; after the slag pushing mechanism is completely separated from the slag pile, the two slag pushing mechanisms approach each other and reset.

[0029] Once the equipment is moved to the location to be demolished, a protective mechanism covers the demolition area to prevent debris from splashing. At this point, the spraying mechanism activates to launch high-pressure water jets to demolish the pavement layer. As the demolition operation progresses, the drive mechanism moves the slag-pushing mechanism downwards, bringing the slag-pushing plate and rollers into contact with the road surface. The drive mechanism then drives the slag-pushing mechanism to move away from each other, and the rotation of the rollers causes the drum to rotate. The slag-pushing plate pushes the debris away from the demolition joint. When the slag-pushing plate moves out of the debris pile, gas blows off the attached debris through the air channel. As the slag-pushing mechanism moves to its limit position, a limiting component inserts into the groove to limit it, and the drive mechanism reverses its direction to make the slag-pushing mechanism rise vertically, preventing debris from being brought back. Finally, the slag-pushing mechanism resets, thus achieving an integrated operation of demolition, slag pushing, debris cleaning, and mechanism reset. This prevents debris from entering and adhering to the joint, reduces cleaning difficulty, and improves construction efficiency and quality.

[0030] The beneficial effects of the present invention, achieved by adopting the above technical solution, are as follows: When dismantling the bridge pavement layer, the drive mechanism drives two slag-pushing mechanisms to move synchronously and relative to each other, ensuring that the slag-pushing mechanisms are always located on both sides of the dismantling joint. When the drive mechanism drives the slag-pushing mechanisms to move downward, the slag-pushing plates and transmission components can contact the road surface, thus putting the slag-pushing mechanisms into operation. As the drive mechanism continues to drive, it can drive the two slag-pushing components to move laterally relative to each other, thereby enabling the slag-pushing plates to push the debris away from the dismantling joint, preventing the protective mechanism from pushing the debris into the dismantling joint during subsequent movement, reducing the difficulty of cleaning the subsequent gap. At the same time, the elastic sliding of the slag-pushing plates can prevent the debris from jamming the slag-pushing mechanisms, ensuring stable and continuous slag-pushing operations. During the lateral movement of the slag-pushing components, the transmission components can also drive the slag-pushing components to rotate, thereby pushing the newly generated debris behind the slag-pushing components towards the debris pile, reducing the risk of debris falling into the dismantling joint. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of a specific embodiment of the present invention.

[0032] Figure 2 This is a schematic diagram of the protective mechanism in a specific embodiment of the present invention.

[0033] Figure 3 This is a schematic diagram of the slag pushing mechanism and the driving mechanism in a specific embodiment of the present invention.

[0034] Figure 4 This is a schematic diagram of the slag pushing assembly in a specific embodiment of the present invention.

[0035] Figure 5 This is a schematic diagram of the internal structure of the connecting plate in a specific embodiment of the present invention.

[0036] Figure 6This is a schematic diagram of the internal structure of the rotating drum in a specific embodiment of the present invention.

[0037] Figure 7 This is a schematic diagram of the transmission assembly in a specific embodiment of the present invention.

[0038] Figure 8 This is a schematic diagram of the structure of the hinge assembly in a specific embodiment of the present invention.

[0039] Figure 9 This is a partial cross-sectional structural diagram of the limiting component in a specific embodiment of the present invention.

[0040] Figure 10 Specific embodiments of the present invention Figure 9 A magnified structural diagram of point A in the middle.

[0041] Figure label:

[0042] 10. Protective mechanism; 11. Protective cover; 12. Fixing strip; 13. Water-blocking component;

[0043] 20. Slag pushing mechanism; 21. Mounting assembly; 211. Mounting plate; 212. Support frame; 213. Baffle; 22. Slag pushing assembly; 221. Rotary drum; 222. Connecting plate; 223. Spring; 224. Slag pushing plate; 225. Air groove; 226. Air supply pipe; 227. Air inlet pipe; 23. Transmission assembly; 231. Mounting cover; 232. Rotating shaft one; 233. Roller; 234. Gear one; 235. Gear two; 236. Rotating shaft two; 237. Transmission wheel one; 238. Transmission wheel two; 239. Connecting shaft;

[0044] 30. Drive mechanism; 31. Drive assembly; 311. Mounting frame; 312. Motor; 313. Lead screw; 314. Slide rod; 315. Threaded block; 316. Protrusion; 317. Fixed column; 318. Fixed plate; 319. Hinge seat one; 32. Hinge assembly; 321. Hinge arm; 322. Hinge seat two; 323. Slider; 324. Limiting component; 33. Guide rail; 34. Limiting assembly; 341. Slide bar; 342. Groove one; 343. Connecting groove; 344. Groove two; 345. Limiting block; 346. Elastic sheet;

[0045] 40. Spraying mechanism; 41. Connecting frame; 42. Electric slide rail; 43. Spray gun. Detailed Implementation

[0046] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0047] like Figures 1 to 10 As shown, the bridge splicing construction equipment of the present invention includes a protective mechanism 10, a slag-pushing mechanism 20, a drive mechanism 30, and a spraying mechanism 40. The protective mechanism 10 is disposed inside the spraying mechanism 40, which is mounted on a drive vehicle capable of moving the spraying mechanism 40 along a predetermined path. There are two slag-pushing mechanisms 20, symmetrically distributed inside the protective mechanism 10, to push the debris generated during demolition towards both sides of the demolition joint. The drive mechanism 30 is mounted on the protective mechanism 10, and the two slag-pushing mechanisms 20 are respectively disposed on both sides of the bottom of the drive mechanism 30, allowing the two slag-pushing mechanisms 20 to move relative to each other. The drive mechanism 30 can also drive the two slag-pushing mechanisms 20 to move up and down.

[0048] When dismantling the bridge pavement, the protective mechanism 10 first covers the area to be dismantled. Then, the spraying mechanism 40 fires a high-pressure water jet inside the protective mechanism 10 to dismantle the bridge pavement. During the dismantling process, the drive mechanism 30 moves the two slag-pushing mechanisms 20 downwards and into contact with the bridge surface. Subsequently, the drive mechanism 30 moves the two slag-pushing mechanisms 20 away from each other from both sides of the dismantling joint, so as to move the debris close to both sides of the dismantling joint away from the dismantling joint, thus preventing the debris from being carried into the dismantling joint when the protective mechanism 10 moves.

[0049] like Figures 1 to 2 As shown, the protective mechanism 10 includes a protective cover 11, a fixing strip 12, and a water-blocking component 13. The fixing strip 12 is installed on the outer bottom of the protective cover 11, and the water-blocking component 13 is installed on the bottom of the fixing strip 12. The water-blocking component 13 is made of rubber material and is used to block splashing concrete debris and water.

[0050] When breaking up the pavement, the protective cover 11 is placed over the breaking area, and the water-blocking component 13 is bent outwards from the protective cover 11 to block water and debris.

[0051] like Figure 1 and Figure 3 As shown, the slag pushing mechanism 20 includes a mounting assembly 21, a slag pushing assembly 22, and a transmission assembly 23. The mounting assembly 21 is mounted on the drive mechanism 30, and the slag pushing assembly 22 is rotatably mounted inside the mounting assembly 21. There are two transmission assemblies 23, which are respectively mounted on both sides of the mounting assembly 21 and connected to the slag pushing assembly 22.

[0052] like Figure 1 and Figures 3 to 4As shown, the mounting assembly 21 includes a mounting plate 211, a support frame 212, and a baffle 213. The mounting plate 211 is located at the bottom of the drive mechanism 30. There are two support frames 212, which are respectively mounted on both sides of the mounting plate 211. The baffle 213 is obliquely mounted between the two support frames 212, located above the slag pushing assembly 22, and is able to contact the slag pushing assembly 22. An arc-shaped plate covering the outside of the slag pushing assembly 22 is mounted on the side of the two support frames 212 facing the demolition joint to prevent debris from entering the slag pushing assembly 22.

[0053] like Figures 3 to 6 As shown, the slag pushing assembly 22 includes a rotating drum 221, slag pushing components, an air supply pipe 226, and an air inlet pipe 227. The rotating drum 221 is rotatably connected between two support frames 212 and is located inside the arc-shaped plate on the support frame 212. Two transmission assemblies 23 are respectively disposed at both ends of the rotating drum 221. There are multiple slag pushing components, which are arranged in a ring array on the outer periphery of the rotating drum 221. The air supply pipe 226 is located inside the rotating drum 221 and has an opening facing the slag pile. One end of the air inlet pipe 227 is installed at one end of the air supply pipe 226, and the other end of the air inlet pipe 227 passes through the rotating drum 221 and extends to the outside of the rotating drum 221. The other end of the air inlet pipe 227 is connected to an external air pump to supply air to the interior of the air supply pipe 226.

[0054] The slag pushing component includes a connecting plate 222, a spring 223, and a slag pushing plate 224. The connecting plate 222 is installed on the outside of the rotating drum 221. The bottom of the connecting plate 222 has a cavity. The top of the spring 223 is installed on the inner top wall of the cavity of the connecting plate 222. There are multiple springs 223, which are evenly distributed inside the cavity of the connecting plate 222. The top of the slag pushing plate 224 is installed on the bottom of the spring 223, and the bottom of the slag pushing plate 224 penetrates through the connecting plate 222 and extends to the outside of the connecting plate 222.

[0055] The outer side of the rotating drum 221 has the same number of air grooves 225 as the slag pusher, and the air grooves 225 are located close to the connecting plate 222. Both sides of the bottom of the connecting plate 222 have arc-shaped surfaces to guide the airflow toward the slag pusher 224.

[0056] When clearing debris, the drive mechanism 30 drives the rotating drum 221 downwards via the mounting assembly 21, bringing the pusher plate 224 into contact with the road surface. Subsequently, the drive mechanism 30 drives the rotating drum 221 to move laterally. During this movement, the transmission assembly 23 rotates the drum 221, which in turn rotates the pusher plate 224 via the connecting plate 222, pushing away debris near the edge of the demolition joint. During this process, the extension and retraction of the spring 223 prevents debris from jamming the pusher plate 224, ensuring stable debris removal. As the pusher plate 224 rotates, it also pushes away newly generated debris behind the rotating drum 221, reducing the risk of debris falling into the demolition joint.

[0057] During the movement of the slag, when the pusher plate 224 moves out of the slag pile, the air groove 225 on the rotating drum 221 adjacent to the pusher plate 224 will align with the opening on the air supply pipe 226. At this time, the gas in the air supply pipe 226 is blown out through the air groove 225, and the blown airflow can blow the slag adhering to the connecting plate 222 and the pusher plate 224 toward the slag pile. As the pusher plate 224 continues to rotate, the baffle 213 can press the pusher plate 224 into the interior of the connecting plate 222, so that the length of the pusher plate 224 when it extends downwards is at its maximum.

[0058] like Figures 3 to 7 As shown, the transmission assembly 23 includes a mounting cover 231, a first rotating shaft 232, a roller 233, a first gear 234, a second gear 235, a second rotating shaft 236, a first transmission wheel 237, a second transmission wheel 238, and a connecting shaft 239. The mounting cover 231 is mounted on one side of the support frame 212. The first rotating shaft 232 and the second rotating shaft 236 are symmetrically arranged, with their ends rotatably connected to the support frame 212 and the mounting cover 231, respectively. The roller 233 is mounted on the outer side of one end of the first rotating shaft 232, and its bottom penetrates the mounting cover 231 and can contact the road surface. The first gear 234 and the second gear 235 mesh and are mounted on the outer sides of the first rotating shaft 232 and the second rotating shaft 236, respectively.

[0059] A first transmission wheel 237 is mounted on the outer side of one end of a second rotating shaft 236 and is connected to a second transmission wheel 238. In this embodiment, both the first transmission wheel 237 and the second transmission wheel 238 are pulleys and are connected by belt drive. In other embodiments, both the first transmission wheel 237 and the second transmission wheel 238 are sprockets and are connected by chain drive. One end of a connecting shaft 239 is mounted on the inner side of the second transmission wheel 238 and is rotatably connected to a mounting cover 231. The other end of the connecting shaft 239 passes through a support frame 212 and is mounted on one end of a rotating drum 221.

[0060] The connecting shaft 239 on the same side as the intake pipe 227 is coaxially arranged with the intake pipe 227, and a channel for the intake pipe 227 to pass through is provided on it. One end of the intake pipe 227 passes through the mounting cover 231 on the same side and extends to the outside of the mounting cover 231. The mounting cover 231 is fixed to the intake pipe 227.

[0061] When the rotating drum 221 moves, the roller 233 contacts the road surface and rotates. At this time, the roller 233 drives the gear 235 to rotate through the gear 234 on the rotating shaft 232. The gear 235 drives the connecting shaft 239 on the transmission wheel 238 to rotate through the transmission wheel 237 on the rotating shaft 236, thereby driving the rotating drum 221 connected to the connecting shaft 239 to rotate, and thus causing the slag pusher plate 224 to rotate.

[0062] like Figures 1 to 3 As shown, the drive mechanism 30 includes a drive assembly 31, a hinge assembly 32, a guide rail 33, and a limiting assembly 34. There are two hinge assemblies 32 and two limiting assemblies 34. One end of each hinge assembly 32 is hinged to the bottom sides of the drive assembly 31, and the other ends of each hinge assembly 32 are slidably disposed on the inner sides of the guide rail 33. The drive assembly 31 is disposed on the top of the protective cover 11, and the mounting plates 211 on the two mounting assemblies 21 are respectively disposed on the other ends of the two hinge assemblies 32. The two limiting assemblies 34 are respectively disposed on the inner walls of the protective cover 11, and the two ends of the guide rail 33 are slidably disposed on the two limiting assemblies 34.

[0063] like Figures 2 to 3 As shown, the drive assembly 31 includes a mounting frame 311, a motor 312, a lead screw 313, a slide rod 314, a threaded block 315, a protrusion 316, a fixing post 317, a fixing plate 318, and a hinge seat 319. The mounting frame 311 is mounted on the top of the protective cover 11, and the motor 312 is mounted on the top of the mounting frame 311. The bottom end of the lead screw 313 is rotatably connected to the inner bottom wall of the mounting frame 311, and the top end of the lead screw 313 is mounted on the drive shaft of the motor 312.

[0064] There are two slide rods 314, which are respectively installed on both sides of the inner bottom wall of the mounting frame 311. The threaded block 315 is threadedly connected to the lead screw 313 and slidably connected to the two slide rods 314. The protrusion 316 is installed on one side of the threaded block 315. The top end of the fixing post 317 is installed on the bottom of the protrusion 316, and the bottom end of the fixing post 317 is installed on the top of the fixing plate 318. The top of the protective cover 11 has a groove for the fixing plate 318 to pass through. There are two hinge seats 319, which are respectively installed on both sides of the bottom of the fixing plate 318 and are respectively hinged to the two hinge assemblies 32.

[0065] like Figures 3 to 4 and Figure 8As shown, the hinge assembly 32 includes a hinge arm 321, a second hinge seat 322, a slider 323, and a limiting member 324. The two ends of the hinge arm 321 are hinged to the first hinge seat 319 and the second hinge seat 322, respectively. The slider 323 is mounted on the bottom of the second hinge seat 322 and slidably connected inside the guide rail 33. The mounting plate 211 on the mounting assembly 21 is mounted on the bottom of the slider 323. The limiting member 324 is mounted on one side of the top of the slider 323, and the limiting member 324 is T-shaped with curved surfaces on both sides.

[0066] When it is necessary to push debris away from the break-in joint, the motor 312 drives the threaded block 315 to move down through the slide rod 314 on the lead screw 313. At the same time, the threaded block 315 drives the hinge seat 319 on the fixed plate 318 to move down through the fixing post 317 on the protrusion 316.

[0067] During the downward movement of hinge seat 319, hinge arm 321 drives slider 323 downward through hinge seat 322. At this time, slider 323 drives slag pushing assembly 22 downward through mounting assembly 21. During the downward movement of slider 323, guide rail 33 moves downward synchronously with slider 323. When roller 233 in transmission assembly 23 contacts the road surface, guide rail 33 can no longer move downward. As fixing plate 318 continues to move downward, the two sliders 323 in guide rail 33 begin to move away from each other, thereby driving slag pushing assembly 22 to perform slag pushing operation.

[0068] like Figures 8 to 10 As shown, the limiting assembly 34 includes a slide bar 341 and elastic elements. The slide bar 341 is vertically installed on one side of the inner wall of the protective cover 11 and is slidably connected to the guide rail 33. Limiting grooves are formed on opposite sides of the slide bars 341 in both limiting assemblies 34 to limit the limiting element 324. The limiting groove includes a first groove 342, a connecting groove 343, and a second groove 344, which are sequentially formed on the slide bar 341 from bottom to top. The first groove 342 and the second groove 344 have the same depth and width. The connecting groove 343 is T-shaped and communicates with the first groove 342 and the second groove 344. The surface width of the connecting groove 343 on the slide bar 341 is smaller than the width of the second groove 344, and the width of the connecting groove 343 inside the slide bar 341 is the same as the width of the second groove 344. There are two elastic elements, which are respectively arranged on both sides inside the first groove 342.

[0069] The elastic element includes a limiting block 345 and an elastic sheet 346. A groove is provided on the inner wall of the groove 342 to fix one end of the elastic sheet 346. The limiting block 345 is installed on the other end of the elastic sheet 346, and the side of the limiting block 345 facing the limiting element 324 has an arc surface.

[0070] When the slag pushing assembly 22 moves to its limit position, the limiting member 324 on the slider 323 passes through the two limiting blocks 345 of the first groove 342 and inserts into the first groove 342. Subsequently, driven by the motor 312, the fixing plate 318 drives the hinge arm 321 to move upward through the hinge seat 319. At this time, under the restriction of the limiting block 345, the two sliders 323 cannot get close to each other, so that the hinge arm 321 drives the slider 323 to move upward through the hinge seat 322, thereby driving the slag pushing assembly 22 to move directly upward, preventing the slag pushing assembly 22 from moving in the opposite direction and pushing the debris into the demolition seam.

[0071] As the slider 323 moves upward, the limiting block 345 moves from the first groove 342 into the connecting groove 343. At this time, the connecting groove 343 can prevent the limiting block 345 from disengaging from the slider 341, allowing the slider 323 to continue moving upward. When the limiting block 345 enters the second groove 344, the guide rail 33 moves upward to its limit position. At this time, the slag pushing assembly 22 is completely removed from the slag pile. Then, as the fixing plate 318 continues to move upward, the two slag pushing assemblies 22 can move closer to each other to facilitate subsequent slag pushing operations.

[0072] like Figures 1 to 2 As shown, the spraying mechanism 40 includes a connecting frame 41, an electric slide rail 42, and a spray gun 43. There are two connecting frames 41. The electric slide rail 42 is mounted on the top of one side of each connecting frame 41, and a protective cover 11 is mounted on the bottom of the other side of each connecting frame 41. The spray gun 43 is mounted on the electric slide rail 42. The bottom end of the spray gun 43 penetrates the protective cover 11 and extends into its interior. The top of the protective cover 11 has a groove for the spray gun 43 to slide back and forth, used for breaking up bridge pavement. The working principle of the spraying mechanism 40 is existing technology and will not be described in detail here.

[0073] Working principle: When dismantling the bridge pavement, the protective cover 11 is first placed over the dismantling area to seal and protect the work area. Then, the spraying mechanism 40 fires high-pressure water jets inside the protective cover 11 to dismantle the bridge pavement layer.

[0074] During the demolition process, the motor 312 starts and drives the threaded block 315 downward via the lead screw 313. Simultaneously, the threaded block 315 drives the hinge seat 319 on the fixing plate 318 downward via the fixing post 317. As the hinge seat 319 moves downward, the hinge arm 321 drives the slider 323 downward synchronously via the hinge seat 322. At this point, the slider 323 drives the rotating drum 221 downward via the mounting assembly 21 until the slag pusher plate 224 and the roller 233 contact the road surface. At this point, the guide rail 33 can no longer move downward.

[0075] As the fixed plate 318 continues to move downward, the two sliders 323 in the guide rail 33 begin to move away from each other, thereby causing the rotating drum 221 to move laterally and the roller 233 to rotate, which in turn causes the rotating drum 221 to rotate. During the rotation of the rotating drum 221, the slag pusher plate 224 is driven to rotate through the connecting plate 222, thereby smoothly pushing away the debris at the edge of the demolition joint.

[0076] During the movement of the slag, when the pusher plate 224 moves out of the slag pile, the air groove 225 on the rotating drum 221 adjacent to the pusher plate 224 will correspond to the opening on the air supply pipe 226. At this time, the gas in the air supply pipe 226 is blown out through the air groove 225, and the blown airflow will blow off the slag stuck to the connecting plate 222 and the pusher plate 224.

[0077] When the slag pushing assembly 22 moves to its limit position, the limiting member 324 on the slider 323 inserts into the groove 342. Subsequently, under the reverse drive of the motor 312, the fixing plate 318 drives the hinge arm 321 to move upward through the hinge seat 319. At this time, the hinge arm 321 drives the slider 323 to move upward through the hinge seat 322, thereby driving the slag pushing assembly 22 to move upward as a whole, so as to prevent the slag pushing assembly 22 from moving in the opposite direction and pushing the debris into the demolition joint.

[0078] When the limiting block 345 enters the second groove 344, the guide rail 33 moves upward to its limit position, at which point the slag pushing assembly 22 is completely removed from the slag pile. As the fixing plate 318 continues to move upward, the two slag pushing assemblies 22 approach each other and reset to their initial working posture, so as to facilitate the subsequent slag pushing operation.

[0079] The bridge splicing construction method of the present invention, using the aforementioned bridge splicing construction equipment, includes the following steps:

[0080] S1: Move the construction equipment to the location to be demolished, so that the protective cover 11 covers the demolition area and the water-blocking component 13 is in close contact with the road surface to form a closed space;

[0081] S2: The spraying mechanism 40 fires a high-pressure water jet inside the protective cover 11 to break down the bridge pavement layer;

[0082] S3: The drive mechanism 30 drives the two slag pushing mechanisms 20 to move down, so that the slag pushing plate 224 and roller 233 on the slag pushing mechanism 20 contact the road surface. Then the drive mechanism 30 drives the two slag pushing mechanisms 20 to move away from each other from both sides of the demolition joint. The roller 233 rotates and drives the rotating drum 221 to rotate, so that the slag pushing plate 224 pushes the debris away from the demolition joint.

[0083] S4: When pushing the slag to move, when the slag pusher plate 224 moves out of the slag pile, the air groove 225 adjacent to the slag pusher plate 224 corresponds to the opening on the air supply pipe 226. At this time, the gas in the air supply pipe 226 is blown out through the air groove 225, blowing off the slag stuck to the connecting plate 222 and the slag pusher plate 224.

[0084] S5: When the slag pushing mechanism 20 moves to the limit position, the limiting part 324 is inserted into the groove 342; the driving mechanism 30 drives in the opposite direction, so that the slag pushing mechanism 20 rises vertically to avoid bringing the slag back to the demolition joint; after the slag pushing mechanism 20 is completely separated from the slag pile, the two slag pushing mechanisms 20 approach each other and reset.

[0085] S6: Repeat steps S2 to S5 until the demolition operation is completed.

[0086] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A bridge splicing construction device, comprising a protective mechanism and a spraying mechanism, characterized in that, It also includes a drive mechanism installed on the protective mechanism and two slag pushing mechanisms respectively set on both sides of the bottom of the drive mechanism. The two slag pushing mechanisms are symmetrically distributed inside the protective mechanism. The drive mechanism can make the two slag pushing mechanisms move relative to each other and can also drive the slag pushing mechanisms to lift and lower. The slag pushing mechanism includes an installation assembly mounted on the drive mechanism, a slag pushing assembly rotatably connected to the installation assembly, and two transmission assemblies respectively mounted on both sides of the installation assembly; the slag pushing assembly includes a rotating drum rotatably connected to the installation assembly and slag pushing parts mounted on the outside of the rotating drum, with at least two slag pushing parts, and the two transmission assemblies are connected to both ends of the rotating drum, and the transmission assemblies can drive the rotating drum to rotate when moving laterally on the ground. The slag pusher includes a connecting plate mounted on the rotating drum and a slag pusher that slides elastically along the length of the connecting plate. After the drive mechanism drives the slag pusher and the transmission assembly to contact the road surface, the two slag pusher mechanisms move away from each other. At this time, the transmission assembly drives the rotating drum to rotate, so that the slag pusher pushes the debris to move to both sides of the demolition joint. The slag pushing assembly also includes an air supply pipe located inside the rotating drum and an air inlet pipe installed at one end of the air supply pipe. The air supply pipe has an opening facing the slag pile. One end of the air inlet pipe passes through the rotating drum and extends to the outside of the rotating drum. A channel for the air inlet pipe to pass through is opened on the connecting shaft on the same side as the air inlet pipe. One end of the air inlet pipe also passes through the mounting cover on the same side as it and is installed on the mounting cover. An air groove is opened on the outer side of the rotating drum and on the side near the connecting plate.

2. The bridge splicing construction equipment according to claim 1, characterized in that, The transmission assembly includes a mounting cover, a first rotating shaft, a roller, a first gear, a second gear, a second rotating shaft, and a connecting shaft. The mounting cover is installed on one side of the mounting assembly. The first rotating shaft, the second rotating shaft, and the connecting shaft are all rotatably connected to the mounting cover. The roller is installed on the first rotating shaft, and its bottom passes through the mounting cover and can contact the road surface. The first gear and the second gear mesh and are respectively installed on the outside of the first rotating shaft and the second rotating shaft. The second rotating shaft is drivenly connected to the connecting shaft. One end of the connecting shaft is connected to the rotating drum.

3. The bridge splicing construction equipment according to claim 2, characterized in that, The driving mechanism includes a driving component, a guide rail, two hinge components, and two limiting components. One end of each of the two hinge components is hinged to the bottom sides of the driving component, and the other ends of each of the two hinge components are slidably disposed on the inner sides of the guide rail. The driving component is disposed on the protective mechanism. The two mounting components are disposed on the other ends of the two hinge components. The two limiting components are disposed on the inner walls of the protective mechanism. The guide rail is slidably disposed between the two limiting components.

4. The bridge splicing construction equipment according to claim 3, characterized in that, The drive assembly includes a mounting frame, a lead screw, a slide bar, a threaded block, a fixed post, and a fixed plate. The mounting frame is mounted on the top of the protective mechanism. The lead screw is rotatably connected to the mounting frame. The threaded block is threadedly connected to the lead screw and slidably connected to the slide bar. The fixed post is mounted on the threaded block. The fixed plate is mounted on the fixed post and is hinged to two hinge components respectively.

5. The bridge splicing construction equipment according to claim 4, characterized in that, The hinge assembly includes a hinge arm, a slider, and a limiting member. The two ends of the hinge arm are respectively hinged to the fixed plate and the slider. The slider is slidably connected inside the guide rail. The mounting assembly is installed at the bottom of the slider, and the limiting member is installed on the top side of the slider.

6. The bridge splicing construction equipment according to claim 5, characterized in that, The limiting component includes a slide bar and two elastic members. The slide bar is vertically installed on the inner wall of the protective mechanism and slidably connected to the guide rail. A limiting groove is formed on one side of the slide bar, and the two elastic members are respectively arranged at the bottom of the inner wall of the limiting groove.

7. The bridge splicing construction equipment according to claim 6, characterized in that, The limiting groove includes a first groove, a connecting groove, and a second groove, which are sequentially formed on the slide bar from bottom to top. The first groove and the second groove have the same depth and width. The connecting groove is T-shaped and connects to the first groove and the second groove. The surface width of the connecting groove on the slide bar is smaller than the width of the second groove.

8. The bridge splicing construction equipment according to claim 7, characterized in that, The elastic element includes a limiting block and an elastic sheet. A groove is provided on the inner wall of the first groove to be fixed to one end of the elastic sheet, and the limiting block is installed at the other end of the elastic sheet.

9. A bridge splicing construction method, characterized in that, The bridge splicing construction equipment described in claim 8 is used, and the process includes the following steps: S1: Move the construction equipment to the location to be demolished, and cover the demolition area with the protective mechanism; S2: The spraying mechanism fires high-pressure water jets from within the protective mechanism to break down the bridge pavement layer; S3: The drive mechanism drives the two slag pushing mechanisms to move down, so that the slag pushing plate and roller contact the road surface. Then the drive mechanism drives the two slag pushing mechanisms to move away from each other from both sides of the demolition joint. The roller rotates and drives the drum to rotate, so that the slag pushing plate pushes the debris away from the demolition joint. S4: When a slag pusher plate moves out of the slag pile, the gas in the air supply pipe is blown out through the air groove, blowing off the slag stuck to the connecting plate and the slag pusher plate. S5: When the slag pushing mechanism moves to the limit position, the limiting part is inserted into the first groove; the drive mechanism reverses the drive, causing the slag pushing mechanism to rise vertically, avoiding bringing the slag back to the demolition joint; after the slag pushing mechanism is completely separated from the slag pile, the two slag pushing mechanisms approach each other and reset.

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