Bridge expansion joint repair device

Abstract

The application discloses a bridge expansion joint repairing device, which comprises a handcart, a cleaning mechanism and a repairing mechanism fixed on the handcart, a cleaning box fixed on the handcart, a lifting platform slidingly connected in the cleaning box, a first air cylinder connecting the lifting platform to the top wall in the cleaning box, a connecting piece fixed on the bottom of the lifting platform, two parallel connecting plates, mounting plates rotatably connected to the outer sides of the connecting plates, a second air cylinder hinged to the connecting plates, an output end of the second air cylinder hinged to the mounting plates, a first motor fixed on the mounting plates, and a cutting wheel fixed on the power output end of the first motor. The bridge expansion joint repairing device can rotate the mounting plate through the second air cylinder, can synchronously adjust the inclination angle of the cutting wheel, can cut a V-shaped groove at the bridge expansion joint, and can save repairing materials.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of road repair devices, and more particularly to a bridge expansion joint repair device. BACKGROUND

[0002] Expansion joint refers to a structural joint set at a proper position along the construction joint of a building or structure to prevent the structure from cracking or being damaged due to temperature changes in the climate. Expansion joints are often provided on bridges. After long-term use, the concrete beside the joint gap may be broken due to collision, and the expansion joint on the road and bridge needs to be repaired in time. Before repair, the expansion joint position needs to be re-slotted and re-jointed.

[0003] In the prior art, a road and bridge expansion joint repair device is disclosed in Chinese Utility Model Patent No. CN218373400U. The device includes a mounting vehicle body, a folding push rod, and a directional repair assembly. The folding push rod is hingedly connected to the side of the mounting vehicle body, and the directional repair assembly is fixedly arranged on the inner side of the mounting vehicle body. The device controls the forward direction by setting a directional piece on the lower surface of the mounting vehicle body to limit the deflection angle of the moving piece. When in use, the positioning bolt is loosened first, so that the carryover rod can move in the fixed sleeve, and the moving wheel is limited in one direction. Then, the U-shaped abutting block limits the other side of the moving wheel, so that the mounting vehicle body limits the deflection of the moving wheel when moving, and further limits the moving route of the mounting vehicle body, avoiding the cutting disc of the repair equipment deviating from the original expansion joint during movement, and further causing damage to the building concrete structure and the cutting disc. However, the above technical solution has the following defects: since the cutting wheel is a fixed structure, it can only open a rectangular slot on the road surface, and when the road surface crack is wide, it is more appropriate to use a V-shaped slotting method. This not only reduces the removal of the original structure of the road surface, but also saves repair materials. SUMMARY

[0004] The technical problem to be solved by the present application is that the existing bridge expansion joint repair mechanism cannot cut V-shaped grooves. In order to overcome the defects of the prior art, the present application provides a bridge expansion joint repair device. During construction, the second cylinder drives the mounting plate to rotate, which can synchronously adjust the inclination angle of the cutting wheel, so as to cut a V-shaped groove at the bridge expansion joint, achieving the purpose of saving repair materials.

[0005] To achieve this purpose, the present application adopts the following technical solutions:

[0006] The application provides a bridge expansion joint repairing device, which comprises a handcart and a cleaning mechanism and a repairing mechanism fixed on the handcart.

[0007] In the preferable technical scheme of the application, the connecting piece further comprises a sliding guide rail, an adjusting motor and a first screw rod, the sliding guide rail is fixed on the bottom of the lifting platform, the connecting plate is slidably connected to the sliding guide rail, the adjusting motor is fixed on the lifting platform, a power output shaft of the adjusting motor is fixed with the first screw rod, and the first screw rod is threadedly connected with the connecting plate.

[0008] In the preferable technical scheme of the application, a dust suction nozzle is further fixed on the bottom of the handcart, a dust suction fan is fixed on the handcart, and the dust suction nozzle is communicated with the dust suction fan through a gas guide pipe.

[0009] In the preferable technical scheme of the application, the repairing mechanism comprises a crack pouring assembly, the crack pouring assembly comprises an asphalt storage tank, a discharging pipe and a discharging pump, the asphalt storage tank is fixed on the handcart, the discharging pipe is fixed on the bottom of the handcart, one end of the discharging pipe is communicated with the asphalt storage tank, and the discharging pump is fixed on the discharging pipe.

[0010] In the preferable technical scheme of the application, the repairing mechanism further comprises a leveling assembly, the leveling assembly comprises a side baffle, a guide roller, a transmission belt and an elastic belt, the front and rear sides of the handcart are both fixed with the side baffles, four guide rollers are rotatably connected to the inner side of each side baffle, the four guide rollers are transmissionally connected through the transmission belts, and the elastic belts are fixed between adjacent two transmission belts.

[0011] In the preferable technical scheme of the application, the transmission belt is made of rubber, and the outer side of the transmission belt is provided with an inclined surface.

[0012] In the preferable technical scheme of the present application, the repairing mechanism further comprises a vibrating assembly, the vibrating assembly comprises a support plate, a sleeve, a vibrating rod, a vibrating head, a fixing block, a vibrating motor, a folding rod, a rolling bearing and a transmission rod, the support plate is arranged inside the transmission belt, one end of the support plate is fixedly connected with the side baffle, two or more sleeves are fixedly arranged on the support plate, the vibrating rod is slidingly connected in the sleeve, the vibrating head is fixedly arranged at the bottom end of the vibrating rod, the fixing block is fixedly arranged above the support plate, the vibrating motor is fixedly arranged on the fixing block, the folding rod is fixedly arranged at the power output end of the vibrating motor, two or more rolling bearings are fixedly arranged on the folding rod, one end of the transmission rod is fixedly connected with the rolling bearing, and the other end of the transmission rod is hingedly connected with the top end of the vibrating rod.

[0013] In the preferable technical scheme of the present application, the side baffle is further fixedly provided with a scraper, and the scraper can abut against the transmission belt and the elastic belt.

[0014] The present application has the following beneficial effects:

[0015] The present application provides a bridge expansion joint repairing device, during construction, the second cylinder drives the mounting plate to rotate, the inclination angle of the cutting wheel can be adjusted synchronously, so that a V-shaped groove is cut at the bridge expansion joint, the purpose of saving repair materials is achieved, the connecting piece is arranged, the distance between the two cutting wheels can be adjusted, and grooves with different widths are cut; the transmission belt can extrude the asphalt overflowing to the road to the V-shaped groove by arranging the leveling assembly, so that material waste is reduced; the vibrating assembly is arranged, the asphalt in the V-shaped groove can be tamped, air bubbles in the groove are completely discharged, and asphalt collapse in the later period is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic view of a bridge expansion joint repairing device provided by the embodiment of the present application;

[0017] Figure 2 is Figure 1 is a local enlarged view of A in FIG. 1;

[0018] Figure 3 is Figure 1 is a local enlarged view of B in FIG. 1;

[0019] Figure 4 is Figure 2 is a sectional view in the direction of C-C in FIG. 1;

[0020] Figure 5 is Figure 3 is a top view of FIG. 1.

[0021] In the drawings:

[0022] 1, trolley; 2, cleaning mechanism; 21, cleaning box; 22, lifting platform; 23, first cylinder; 24, connecting piece; 241, connecting plate; 242, sliding guide rail; 243, adjusting motor; 244, first screw rod; 25, mounting plate; 26, second cylinder; 27, first motor; 28, cutting wheel; 3, repairing mechanism; 31, caulking assembly; 311, asphalt storage box; 312, discharge pipe; 313, discharge pump; 32, leveling assembly; 321, side baffle; 322, guide roller; 323, transmission belt; 324, elastic belt; 325, scraper; 33, vibrating assembly; 331, support plate; 332, sleeve; 333, vibrating rod; 334, vibrating head; 335, fixing block; 336, vibrating motor; 337, folding rod; 338, rolling bearing; 339, transmission rod; 41, dust suction nozzle; 42, air guide pipe; 43, dust suction fan. DETAILED DESCRIPTION

[0023] The technical solutions of the present application will be further described below in combination with the drawings and through specific embodiments.

[0024] As Figures 1-5As shown, the embodiment provides a bridge expansion joint repairing device, which comprises a trolley 1 and a cleaning mechanism 2 and a repairing mechanism 3 fixed on the trolley 1. The cleaning mechanism 2 comprises a cleaning box 21, a lifting platform 22, a first air cylinder 23, a connecting piece 24, a mounting plate 25, a second air cylinder 26, a first motor 27 and a cutting wheel 28. The cleaning box 21 is fixed on the trolley 1. The lifting platform 22 is slidingly connected in the cleaning box 21 and connected to the top wall in the cleaning box 21 through the first air cylinder 23. The connecting piece 24 is fixed on the bottom of the lifting platform 22. The connecting piece 24 comprises two parallel connecting plates 241. The mounting plate 25 is rotatably connected to the outer side of each connecting plate 241. The fixed end of the second air cylinder 26 is hinged to the connecting plate 241. The output end of the second air cylinder 26 is hinged to the mounting plate 25. The first motor 27 is fixed on the mounting plate 25. The cutting wheel 28 is fixed on the power output end of the first motor 27. In the embodiment, the trolley 1 is provided with walking wheels at the bottom. The trolley 1 is also provided with a pushing handle, so as to facilitate the construction personnel to move the trolley 1 to the construction position. The cleaning mechanism 2 is used for cutting a straight slot at the expansion joint, so as to facilitate the removal of damaged concrete and the filling and repairing of the construction personnel. The cleaning box 21 is provided with a cavity for accommodating and protecting the cutting wheel 28. The lifting platform 22 can slide up and down in the cleaning box 21 to adjust the height of the cutting wheel 28, so as to adjust the depth of the slot. The connecting plate 241 is arranged below the lifting platform 22 and perpendicular to the lifting platform 22. The mounting plate 25 is arranged on the side of each connecting plate 241 away from the other connecting plate 241. The bottom end of the mounting plate 25 is hingedly connected to the bottom end of the connecting plate 241, so that the mounting plate 25 can rotate relatively to make the cutting wheel 28 tilt synchronously to cut a bevel slot at different angles. The first motor 27 is used for driving the cutting wheel 28 to rotate and cut the expansion joint. The repairing mechanism 3 is used for pouring asphalt into the cut groove to repair the road surface. In addition, the cutting wheel 28 is provided with a polishing surface on the side, which can polish the cut road surface flat and can polish a bevel slot on the bridge road surface in advance when initially processing.

[0025] Specifically, the connecting piece 24 further comprises a sliding guide rail 242, an adjusting motor 243 and a first screw rod 244. The sliding guide rail 242 is fixedly arranged at the bottom of the lifting platform 22, and the connecting plate 241 is slidably connected to the sliding guide rail 242. The adjusting motor 243 is fixedly arranged on the lifting platform 22, and the power output shaft of the adjusting motor 243 is fixedly arranged with the first screw rod 244, and the first screw rod 244 is threadedly connected with the connecting plate 241. In the embodiment, the sliding guide rail 242 is longitudinally arranged below the lifting platform 22, and the sliding guide rail 242 is fixedly connected with the lifting platform 22. The adjusting motor 243 is used for driving the first screw rod 244 to rotate, and the first screw rod 244 is provided with two threads with opposite screw directions, and each thread is threadedly connected with one of the connecting plates 241, so as to simultaneously drive the two connecting plates 241 to approach or move away from each other, thereby achieving the purpose of adjusting the width of the cut seam.

[0026] Specifically, the bottom of the trolley 1 is further fixedly arranged with a dust suction nozzle 41, and a dust suction fan 43 is fixedly arranged on the trolley 1, and the dust suction nozzle 41 is in communication with the dust suction fan 43 through a gas guide pipe 42. In the embodiment, the bottom of the trolley 1 is longitudinally fixedly arranged with a cross beam, and the cross beam is located at the right side of the cutting wheel 28. The cross beam is uniformly fixedly arranged with two or more dust suction nozzles 41, which are used to suck away the dust generated during cutting, so as to avoid the damage to the body caused by the workers inhaling the dust.

[0027] Specifically, the repairing mechanism 3 comprises a crack pouring assembly 31, which comprises an asphalt storage tank 311, a discharge pipe 312 and a discharge pump 313. The asphalt storage tank 311 is fixedly arranged on the trolley 1, the discharge pipe 312 is fixedly arranged at the bottom of the trolley 1, one end of the discharge pipe 312 is in communication with the asphalt storage tank 311, and the discharge pump 313 is fixedly arranged on the discharge pipe 312. In the embodiment, the crack pouring assembly 31 is used to pour asphalt into the cut seam. The asphalt storage tank 311 is arranged on one side of the cleaning tank 21, and a stirring member is arranged in the asphalt storage tank 311, which is used to prevent the asphalt from solidifying. The discharge pipe 312 is vertically fixedly arranged at the bottom of the trolley 1, and the bottom end of the discharge pipe 312 is flush with the road surface. Since the asphalt has poor fluidity, the discharge pump 313 is fixedly arranged on one side of the asphalt storage tank 311, which is used to pump the asphalt into the cut seam to ensure the filling effect.

[0028] Specifically, the repairing mechanism 3 further comprises a flattening assembly 32, the flattening assembly 32 comprises side plates 321, guide rollers 322, transmission belts 323 and elastic belts 324, the front and rear sides of the handcart 1 are both fixedly provided with the side plates 321, the inner side of each side plate 321 is rotatably connected with four guide rollers 322, the four guide rollers 322 are drivingly connected through the transmission belts 323, and the adjacent two transmission belts 323 are fixedly provided with the elastic belts 324. In the embodiment, the flattening assembly 32 is used for flattening the poured asphalt, so that the asphalt is flush with the road surface, thereby avoiding the convexity of the asphalt after solidification and affecting the driving comfort. The two side plates 321 are parallelly arranged, and the bottom end of the side plate 321 should be provided with a certain gap from the road surface during installation. The four guide rollers 322 and the transmission belts 323 form a rectangle, and the transmission belts 323 can abut against the road surface, so as to drive the guide rollers 322 to rotate under the friction. The elastic belt 324 is made of flexible material and can be deformed when subjected to external force, and the two sides of the elastic belt 324 are fixedly connected with one of the transmission belts 323. In addition, the elastic belt 324 is further provided with exhaust holes.

[0029] Specifically, the transmission belts 323 are made of rubber, and the outer side of the transmission belts 323 is provided with an inclined surface. In the embodiment, the two transmission belts 323 are symmetrically arranged on the two sides of the road groove, and the width of the end of the transmission belt 323 away from the road groove is greater than the width of the other end, so that the asphalt on the road can be extruded to the groove during the movement of the handcart 1, thereby avoiding waste.

[0030] Specifically, the repair mechanism 3 also includes a vibration assembly 33, which includes a support plate 331, sleeves 332, a vibration rod 333, a vibration head 334, a fixing block 335, a vibration motor 336, a folding rod 337, a rolling bearing 338, and a transmission rod 339. The support plate 331 is located inside the transmission belt 323, and one end of the support plate 331 is fixedly connected to the side baffle 321. Two or more sleeves 332 are fixedly mounted on the support plate 331. The 2nd component has a sliding connection to a vibrating rod 333, with a vibrating head 334 fixed to the bottom end of the vibrating rod 333. A fixing block 335 is fixed above the support plate 331, and a vibrating motor 336 is fixed to the fixing block 335. A folding rod 337 is fixed to the power output end of the vibrating motor 336, and two or more rolling bearings 338 are fixed on the folding rod 337. One end of a transmission rod 339 is fixedly connected to the rolling bearing 338, and the other end of the transmission rod 339 is hinged to the top end of the vibrating rod 333. In this embodiment, the vibrating assembly 33 is used to vibrate and compact the poured asphalt, thereby expelling internal air bubbles and preventing subsequent subsidence. The support plate 331 is arranged horizontally, and two or more sleeves 332 are fixed in a "I" shape on the support plate 331. The vibrating rod 333 can slide up and down within the sleeves 332, thereby driving the vibrating head 334 to repeatedly tap the asphalt to compact it. The fixing block 335 is set at the top end of the support plate 331 to support the vibrating motor 336 and make the position of the folding rod 337 higher than the maximum height of the vibrating rod 333 to avoid interference during operation. The folding rod 337 is an irregular rod, which is composed of a straight rod and a U-shaped rod, and the rolling bearing 338 is fixed on the U-shaped rod. So when the folding rod 337 rotates, it drives the vibrating rod 333 to move alternately through the transmission rod 339.

[0031] Specifically, a scraper 325 is also fixed on the side baffle 321, and the scraper 325 can abut against both the transmission belt 323 and the elastic belt 324. In this embodiment, the scraper 325 has a trapezoidal structure and is laterally arranged on one side of the transmission belt 323. By setting the scraper 325, the asphalt adhering to the surface of the transmission belt 323 and the elastic belt 324 can be scraped off.

[0032] Working principle: in use, the construction personnel moves the trolley 1 to the position to be constructed, and then controls the adjusting motor 243 to start according to the construction needs, the adjusting motor 243 drives the first lead screw 244 to rotate, and then the two connecting plates 241 are close to each other or away from each other, so as to adjust the width between the two cutting wheels 28, and at the same time, the first cylinder 23 is controlled to start, the first cylinder 23 is elongated to drive the mounting plate 25 to rotate, so as to adjust the inclination angle of the cutting wheel 28, so as to process the inclined groove with different angles; then the first cylinder 23 is started, the first cylinder 23 drives the lifting platform 22 to descend, so that the cutting wheel 28 gradually contacts the bridge pavement, at the same time, the construction personnel pushes the trolley 1 forward, that is, the continuous groove can be cut, and the dust suction fan 43 is started to suck the dust generated in the cutting, so as to avoid dust raising;

[0033] In the process of moving the trolley 1, the discharging pump 313 pumps the asphalt in the asphalt storage tank 311 into the groove to fill the groove, and at the same time, the transmission belt 323 is in contact with the ground, and then the guide roller 322 is driven to rotate under the action of friction, so that the transmission belt 323 rotates synchronously, and since the transmission belt 323 is compressed and deformed when in contact with the road surface, the asphalt on the road surface is gradually extruded to the road groove, so as to avoid waste of asphalt, at this time, the vibrating motor 336 drives the folding rod 337 to rotate, and then the folding rod 337 drives the vibrating rod 333 to move up and down alternately through the transmission rod 339, so that the vibrating head 334 alternately knocks the elastic belt 324, so as to compact the asphalt in the groove and make the internal bubbles escape, so as to avoid the depression of asphalt in the later period, and the scraper 325 can scrape off the asphalt adhered to the surface of the transmission belt 323 and the elastic belt 324.

[0034] The application is described through preferred embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to the features and embodiments without departing from the spirit and scope of the application. The application is not limited by the specific embodiments disclosed herein, and other embodiments falling within the claims of the application are within the scope of protection of the application.

Claims

1. A bridge expansion joint repairing device, comprising a trolley (1) and a cleaning mechanism (2) and a repairing mechanism (3) fixed on the trolley (1), characterized in that: The cleaning mechanism (2) comprises a cleaning box (21), a lifting platform (22), a first cylinder (23), a connecting piece (24), a mounting plate (25), a second cylinder (26), a first motor (27) and a cutting wheel (28), the cleaning box (21) is fixedly arranged on the handcart (1), the lifting platform (22) is slidably connected in the cleaning box (21), and the lifting platform (22) is connected to the inner top wall of the cleaning box (21) through the first cylinder (23); the bottom of the lifting platform (22) is fixedly provided with the connecting piece (24), the connecting piece (24) comprises two parallel connecting plates (241), the outer sides of the connecting plates (241) are rotatably provided with the mounting plates (25), the fixed end of the second cylinder (26) is hingedly connected to the connecting plates (241), the output end of the second cylinder (26) is hingedly connected to the mounting plates (25), the first motor (27) is further fixedly arranged on the mounting plate (25), and the cutting wheel (28) is fixedly arranged on the power output end of the first motor (27). The repair mechanism (3) comprises a crack pouring assembly (31), the crack pouring assembly (31) comprises an asphalt storage box (311), a discharge pipe (312) and a discharge pump (313), the asphalt storage box (311) is fixedly arranged on the handcart (1), the discharge pipe (312) is fixedly arranged on the bottom of the handcart (1), one end of the discharge pipe (312) is communicated with the asphalt storage box (311), and the discharge pump (313) is fixedly arranged on the discharge pipe (312). The repair mechanism (3) further comprises a leveling assembly (32), the leveling assembly (32) comprises side baffles (321), guide rollers (322), transmission belts (323) and elastic belts (324), the front and rear sides of the handcart (1) are fixedly provided with the side baffles (321), the inner sides of the side baffles (321) are rotatably provided with four guide rollers (322), the four guide rollers (322) are drivingly connected through the transmission belts (323), and the elastic belts (324) are fixedly arranged between adjacent two transmission belts (323). The transmission belts (323) are made of rubber, and the outer sides of the transmission belts (323) are provided with inclined surfaces, the two transmission belts (323) are symmetrically arranged on the two sides of the road groove, and the width of one end of the transmission belt (323) away from the road groove is greater than that of the other end, so that the handcart (1) can extrude the asphalt on the road to the groove in the process of advancing, and waste is avoided.

2. A bridge joint repair device according to claim 1, characterised in that: The connecting piece (24) further comprises a sliding guide rail (242), an adjusting motor (243) and a first lead screw (244), the sliding guide rail (242) is fixedly arranged on the bottom of the lifting platform (22), the connecting plates (241) are slidably connected to the sliding guide rail (242), the adjusting motor (243) is fixedly arranged on the lifting platform (22), a power output shaft of the adjusting motor (243) is fixedly provided with the first lead screw (244), and the first lead screw (244) is threadedly connected with the connecting plate (241).

3. A bridge joint repair device according to claim 1, characterised in that: A dust suction nozzle (41) is further fixedly arranged on the bottom of the handcart (1), a dust suction fan (43) is fixedly arranged on the handcart (1), and the dust suction nozzle (41) is communicated with the dust suction fan (43) through a gas guide pipe (42).

4. The bridge joint repair device of claim 1, wherein: The repairing mechanism (3) further comprises a vibrating assembly (33), the vibrating assembly (33) comprises a support plate (331), a sleeve (332), a vibrating rod (333), a vibrating head (334), a fixing block (335), a vibrating motor (336), a folding rod (337), a rolling bearing (338) and a transmission rod (339), the support plate (331) is arranged inside the transmission belt (323), one end of the support plate (331) is fixedly connected with the side baffle (321), two or more than two sleeves (332) are fixedly arranged on the support plate (331), the vibrating rod (333) is slidably connected in the sleeve (332), the vibrating head (334) is fixedly arranged at the bottom end of the vibrating rod (333), the fixing block (335) is fixedly arranged above the support plate (331), the vibrating motor (336) is fixedly arranged on the fixing block (335), the folding rod (337) is fixedly arranged at the power output end of the vibrating motor (336), two or more than two rolling bearings (338) are fixedly arranged on the folding rod (337), one end of the transmission rod (339) is fixedly connected with the rolling bearing (338), and the other end of the transmission rod (339) is hingedly connected with the top end of the vibrating rod (333).

5. The bridge joint repair device of claim 1, wherein: The side baffle (321) is further fixedly provided with a scraper (325), and the scraper (325) can abut against the transmission belt (323) and the elastic belt (324).

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