Construction device and method for preventing and treating cracks of ultrahigh concrete bridge tower

Abstract

The invention discloses a construction device and method for ultrahigh concrete bridge tower crack prevention and control, and relates to the technical field of concrete crack prevention and control. The construction device comprises a slurry feeding pump and a fixing plate, the top of the slurry feeding pump is fixedly connected with a conveying pipe, the top of the fixing plate is fixedly connected with a handle, the bottom of the handle is movably connected with a quantifying mechanism, and the bottom of the quantifying mechanism is fixedly connected with a leveling mechanism. According to the construction device and method for ultrahigh concrete bridge tower crack prevention and treatment, filling slurry is fed into a crack from a rotating pipe through a slurry feeding pump, meanwhile, concrete around the crack is blocked through a rubber air bag, after the crack is filled with the filling slurry, the rotating pipe is pushed upwards, output of the filling slurry is blocked through a blocking plate, and the filling slurry is prevented from being blocked; after the crack is filled with the filling slurry, filling of the filling slurry is stopped immediately, the filling slurry in the crack is prevented from overflowing, and the processing time of redundant filling slurry is saved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of concrete crack prevention, in particular to a construction device and method for preventing cracks in an ultrahigh concrete bridge tower. BACKGROUND

[0002] Concrete bridge tower crack prevention is crucial, which can effectively guarantee the overall safety and stability of the bridge structure, prevent cracks from weakening the bearing capacity and causing safety accidents, significantly prolong the service life of the bridge tower, reduce the intrusion of water and corrosive substances into the reinforcement, thereby improving the structural durability and greatly reducing the maintenance cost of the bridge throughout its life cycle. The patent with Chinese application number 202222705608.7 discloses a mobile high-rise building raft concrete crack automatic filling device, which comprises a base, an automatic filling structure is installed on the top of the base, and the automatic filling structure comprises a support frame, a fixing frame, a pattern acquisition assembly, a feeding hopper, a tank, a hydraulic push rod, a moving plug, an assembly frame, an electric push rod and a rotating extrusion head. When filling the filling paste into the gap, the filling paste usually overflows from the gap to ensure that the filling paste can be fully injected into the gap. The overflowed paste forms a capillary siphon effect with the base, which causes water to easily penetrate along the interface, leading to an increase in the corrosion rate of the reinforcement. The overflowed filling paste needs to be treated, and the treatment of multiple cracks will seriously affect the filling speed. SUMMARY

[0003] In view of the deficiencies of the prior art, the present application provides a construction device and method for preventing cracks in an ultrahigh concrete bridge tower to solve the problems raised in the background art.

[0004] To achieve the above-mentioned purposes, the present application is implemented by the following technical solutions: a construction device for preventing cracks in an ultrahigh concrete bridge tower, comprising a paste feeding pump and a fixed plate, the top of the paste feeding pump is fixedly connected with a conveying pipe, the top of the fixed plate is fixedly connected with a handle, the bottom of the handle is movably connected with a quantitative mechanism, and the bottom of the quantitative mechanism is fixedly connected with a leveling mechanism. The quantitative mechanism comprises: A blocking sleeve is fixedly connected to the end of the conveying pipe away from the paste feeding pump. A rotating pipe is arranged at the bottom of the blocking sleeve. A moving pipe is movably connected to the bottom of the rotating pipe.

[0005] Preferably, the top of the fixed plate is movably connected with a fixed sleeve, the bottom of the fixed sleeve is fixedly connected with a fixed table, the inside of the fixed sleeve is fixedly connected with a connecting pipe, the connecting pipe is fixedly connected to the bottom of the blocking sleeve, the outer wall of the rotating pipe is movably connected with the connecting pipe through a bearing, and the bottom of the fixed table is fixedly connected with a contact table.

[0006] Preferably, the blocking sleeve is movably connected to a blocking plate inside, the blocking plate is fixedly connected to a second connecting rod on the right side, the second connecting rod is fixedly connected to a first spring on the right side, the first spring is fixedly connected to the top of the fixed platform, the blocking sleeve is fixedly connected to the first connecting rod on the left side, the first connecting rod is fixedly connected to a standby magnet on the left side, the outer wall of the movable tube is fixedly connected to a trigger rod, and the top of the trigger rod is fixedly connected to a trigger magnet at a position corresponding to the standby magnet.

[0007] Preferably, the leveling mechanism includes a rubber airbag, which is fixedly connected to the bottom of the contact platform. The bottom of the contact platform is located inside the rubber airbag and is fixedly connected to three support blocks.

[0008] Preferably, the bottom of the fixed platform is fixedly connected to a driving motor, the top of the driving motor is movably connected to a transmission belt, the transmission belt is movably connected to the outer wall of the rotating tube, and the outer wall of the rotating tube is fixedly connected to an eccentric block.

[0009] Preferably, a spiral plate is fixedly connected inside the movable tube, a second spring is fixedly connected to the top of the movable tube, and the top of the second spring is movably connected to the outer wall of the rotating tube through a bearing.

[0010] Preferably, a connecting sleeve is fixedly connected to the inner wall of the rotating tube, and an inserting block is fixedly connected to the inner wall of the movable tube at a position corresponding to the connecting sleeve.

[0011] Construction method of the construction device for preventing and controlling cracks in super-high concrete bridge towers: S1. Use a soft cleaning brush to insert into the gap of the bridge tower and brush it, then use a vacuum cleaner to suck out the dust in the gap; S2. After cleaning the inside of the gap, prepare the filling slurry; S3. Place the feed structure of the slurry pump into the prepared filling slurry. The operator holds the handle, inserts the movable tube into the gap, and pushes the handle toward the bridge tower until the support block presses against the concrete through the rubber airbag. The slurry pump is started to push the filling slurry for transportation, so that the filling slurry is filled into the crack. When the slurry pump stops working, the operator pulls the handle outward to remove the device. S4. Check the filled gaps.

[0012] The present invention provides a construction device and method for preventing and controlling cracks in super-high concrete bridge towers. It has the following beneficial effects: 1. This construction device and method for preventing and controlling cracks in super-high concrete bridge towers uses a slurry pump to deliver filling slurry from a rotating tube into the cracks. At the same time, a rubber airbag seals the concrete around the cracks. After the filling slurry is filled in the cracks, the rotating tube is pushed upward, so that a blocking plate blocks the output of the filling slurry. After the cracks are filled with the filling slurry, the filling of the filling slurry is stopped immediately, preventing the filling slurry in the gap from overflowing, saving time for processing excess filling slurry, and improving the filling speed.

[0013] 2. In the construction device and method for preventing and controlling cracks in super-high concrete bridge towers, when injecting filling slurry, the eccentric block will cause the rotating tube to rotate in a shaking manner, so that the filling slurry is filled into the gap in a shaking state. Since the filling slurry is relatively viscous, the filling slurry inside the gap can also be affected, which can enhance the fluidity of the filling slurry inside the gap, promote the filling slurry to quickly fill the gap, and thus increase the filling speed.

[0014] 3. The construction device and method for preventing and controlling cracks in super-high concrete bridge towers use a second spring to push the upward-moving movable tube downward, thereby increasing the pressure of the filling slurry inside the gap, prompting the filling slurry to spread and fill the gap, further increasing the filling speed of the filling slurry in the gap, and thus increasing the filling speed.

[0015] 4. The construction device and method for preventing and controlling cracks in super-high concrete bridge towers synchronously drives the moving tube through the rotating tube, so that the rotating spiral plate pushes the filling slurry into the moving tube, thereby cutting off the filling slurry inside the rotating tube and inside the gap. At the same time, the shaking of the moving tube can make the filling slurry flat on the gap, so that the surface left after the equipment completes the filling is flat, saving time for processing the filling surface and thus improving the filling speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention from a top view; Figure 3 for Figure 2 Schematic diagram of the enlarged structure of the middle F part; Figure 4 This is a schematic diagram of the rubber airbag structure of the present invention; Figure 5 This is a schematic diagram of the cross-sectional structure of the movable tube of the present invention; Figure 6 for Figure 5 A schematic diagram of the enlarged structure of the middle part A; Figure 7 for Figure 4 The enlarged structural diagram of the middle D part; Figure 8 forFigure 5 The enlarged structural diagram of the middle C part; Figure 9 for Figure 5 A schematic diagram of the enlarged structure of the middle B part; Figure 10 for Figure 4 The enlarged structural diagram of the middle E part; Figure 11 for Figure 4 Schematic diagram of cross-section structure; Figure 12 Insert block structure diagram of the present invention; Figure 13 This is a schematic diagram of the drive motor structure of the present invention.

[0017] In the figure: 1. slurry pump; 2. transport pipe; 3. fixed plate; 4. quantitative mechanism; 401. fixed sleeve; 402. connecting pipe; 403. trigger magnet; 404. blocking sleeve; 405. blocking plate; 406. first connecting rod; 407. second connecting rod; 408. first spring; 409. standby magnet; 410. rotating tube; 411. fixed platform; 412. contact platform; 413. moving tube; 414. trigger rod; 5. leveling mechanism; 501. rubber airbag; 502. support block; 503. drive motor; 504. transmission belt; 505. connecting sleeve; 506. insertion block; 507. second spring; 508. eccentric block; 509. spiral plate; 6. handle. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but are not to be construed as limiting the present invention.

[0020] Example 1: Please refer to Figures 1-6 The present invention provides a technical solution: a construction device for preventing and controlling cracks in super-high concrete bridge towers, comprising a slurry pump 1 and a fixed plate 3. The top of the slurry pump 1 is fixedly connected to a transport pipe 2, the top of the fixed plate 3 is fixedly connected to a handle 6, the bottom of the handle 6 is movably connected to a quantitative mechanism 4, and the bottom of the quantitative mechanism 4 is fixedly connected to a leveling mechanism 5. The slurry pump 1 is a self-sensing pump, which stops working when the pressure in the output pipe is too high. Quantitative organization 4 includes: A blocking sleeve 404 is fixedly connected to the end of the transport pipe 2 away from the slurry pump 1; Rotating tube 410, which is disposed at the bottom of blocking sleeve 404; The movable tube 413 is movably connected to the bottom of the rotating tube 410 .

[0021] The operator holds the handle 6, inserts the movable tube 413 into the gap, and then places the feeding structure of the slurry pump 1 into the filling slurry that fills the gap, so that the slurry pump 1 sends the filling slurry out through the transport tube 2, and the filling slurry is discharged into the gap through the rotating tube 410 and the movable tube 413 to fill the gap.

[0022] When the gap is filled, the blocking sleeve 404 cuts off the delivered filling slurry to avoid filling too much filling slurry. The top of the fixed plate 3 is movably connected with the fixed sleeve 401, the bottom of the fixed sleeve 401 is fixedly connected with the fixed platform 411, the inside of the fixed sleeve 401 is fixedly connected with the connecting pipe 402, the connecting pipe 402 is fixedly connected to the bottom of the blocking sleeve 404, the outer wall of the rotating tube 410 is movably connected to the connecting pipe 402 through a bearing, and the bottom of the fixed platform 411 is fixedly connected with the contact platform 412.

[0023] The filling slurry is fed into the rotating tube 410 by the transport pipe 2 through the blocking sleeve 404 and the connecting pipe 402. After the crack is filled, the inside of the blocking sleeve 404 is cut off, which can cut off the transport pipe 2 from feeding the filling slurry into the crack.

[0024] By filling the crack with filling slurry and then increasing the pressure, it is detected whether the gap is filled with filling slurry. A blocking plate 405 is movably connected inside the blocking sleeve 404, and a second connecting rod 407 is fixedly connected to the right side of the blocking plate 405. A first spring 408 is fixedly connected to the right side of the second connecting rod 407. The first spring 408 is fixedly connected to the top of the fixed platform 411. The first connecting rod 406 is fixedly connected to the left side of the blocking sleeve 404, and a standby magnet 409 is fixedly connected to the left side of the first connecting rod 406. The outer wall of the movable tube 413 is fixedly connected to the trigger rod 414, and the top of the trigger rod 414 is fixedly connected to the trigger magnet 403 at the corresponding position of the standby magnet 409.

[0025] When the gap is full of filling slurry, filling slurry is continuously injected into the bottom of the moving tube 413, and the filling slurry pressure inside the gap continues to increase, which will push the moving tube 413 upward, and the moving tube 413 will move upward synchronously with the trigger rod 414. When the moving tube 413 is pushed out from the gap, the trigger rod 414 will push the trigger magnet 403 to the corresponding position of the standby magnet 409, and then the standby magnet 409 and the trigger magnet 403 will attract each other through magnetic force, so that the standby magnet 409 is pulled toward the trigger magnet 403 by the magnetic force, so that the blocking plate 405 is pulled and the first spring 408 is pulled and extended. The blocking plate 405 closes the cross-section connecting the transport tube 2 and the connecting tube 402 to prevent the filling slurry in the gap from overflowing.

[0026] Using an inflatable extension with good elasticity to contact the concrete surface of the bridge tower can better fill the gaps on the top of the concrete and avoid leakage of the filling slurry. The leveling mechanism 5 includes a rubber airbag 501, which is fixedly connected to the bottom of the contact platform 412. The bottom of the contact platform 412 is located inside the rubber airbag 501 and is fixedly connected to three support blocks 502. The bottom of the support block 502 is rounded, and the inner wall of the rubber airbag 501 is a smooth rubber surface. While reducing friction, it can prevent the support block 502 from damaging the rubber airbag 501.

[0027] When the operator holds the handle 6 and inserts the movable tube 413 into the gap, and pushes the handle 6, the support block 502 is pressed against the concrete wall through the outer skin of the rubber airbag 501, so that the rubber airbag 501 is squeezed by the contact platform 412 and the concrete, and the air pressure inside the rubber airbag 501 increases. The rubber airbag 501 fits with the concrete surface under the action of the internal air pressure, so that after the filling slurry is injected into the gap, the excess filling slurry cannot leak to the outside through the gap, so that when the rotating tube 410 is injected into the gap, the filling slurry pressure in the gap can be prevented from being reduced due to leakage of the filling slurry.

[0028] Example 2: Please refer to Figures 1-13 Based on the first embodiment, the present invention provides a technical solution: The filling slurry has poor fluidity. When injected into the gap, the speed of filling the gap is slow. The bottom of the fixed platform 411 is fixedly connected to the driving motor 503, and the top of the driving motor 503 is movably connected to the transmission belt 504. The transmission belt 504 is movably connected to the outer wall of the rotating tube 410, and the outer wall of the rotating tube 410 is fixedly connected to the eccentric block 508.

[0029] When the rotating tube 410 injects filling slurry into the gap, the driving motor 503 is driven by the transmission belt 504 to rotate the rotating tube 410. When the rotating tube 410 rotates, the eccentric block 508 is driven to rotate, and the eccentric block 508 causes the rotating tube 410 to rotate in a shaking manner. At the same time, there is a gap between the fixed plate 3 and the fixed sleeve 401. Based on the space for the rotating tube 410 to move, the operator holds the handle 6 to fix the fixed plate 3, which can make the rotating tube 410 vibrate. At the same time, the moving tube 413 that discharges the filling slurry also vibrates, so that the filling slurry is filled into the gap in a shaking state. Since the filling slurry is relatively viscous, the filling slurry inside the gap can also be involved, which can enhance the fluidity of the filling slurry inside the gap and promote the filling slurry to quickly fill the gap.

[0030] When the rotating tube 410 is pushed upward by the filling slurry inside the gap, the filling slurry inside the moving tube 413 will be connected to the filling slurry inside the gap. Cutting the connection can make the filled cross-section relatively flat. A spiral plate 509 is fixedly connected to the inside of the moving tube 413, and a second spring 507 is fixedly connected to the top of the moving tube 413. The top of the second spring 507 is movably connected to the outer wall of the rotating tube 410 through a bearing.

[0031] The inner wall of the rotating tube 410 is fixedly connected to a connecting sleeve 505, and the inner wall of the moving tube 413 is fixedly connected to an insertion block 506 at a position corresponding to the connecting sleeve 505. The second spring 507 will push the rotating tube 410 downward, so that the connecting sleeve 505 and the insertion block 506 inside the rotating tube 410 remain separated during the injection cutoff, thereby preventing the spiral plate 509 from being driven to rotate and obstructing the discharge of the filling slurry. At the same time, the second spring 507 will cause the moving tube 413 to be pushed downward when pushed upward by the filling slurry, thereby enhancing the pressure of the filling slurry inside the gap, prompting the filling slurry to spread and fill the gap, and further improving the filling speed of the filling slurry in the gap.

[0032] After the rotating tube 410 is pushed to move upward, the insertion block 506 inside the moving tube 413 is inserted into the connecting sleeve 505. Through the connection between the insertion block 506 and the connecting sleeve 505, the moving tube 413 and the rotating tube 410 can rotate synchronously. The rotation of the moving tube 413 will synchronously drive the spiral plate 509 inside the moving tube 413. The spiral plate 509 will push the filling slurry into the moving tube 413, thereby cutting off the filling slurry inside the rotating tube 410 and the gap. At the same time, the vibration will cause the moving tube 413 to swing back and forth, which can play a role in leveling the area near the cut surface, making the filling slurry flat on the gap.

[0033] Example 3: Please refer to Figures 1-13 Based on the first and second embodiments, the present invention provides a technical solution: Construction method of the construction device for preventing and controlling cracks in super-high concrete bridge towers: S1. Use a soft cleaning brush to insert into the gap of the bridge tower and brush it, then use a vacuum cleaner to suck out the dust in the gap; S2. After cleaning the inside of the gap, prepare the filling slurry; S3. Place the feed structure of the slurry pump 1 into the prepared filling slurry. The operator holds the handle 6, inserts the movable tube 413 into the gap, and pushes the handle 6 toward the bridge tower until the support block 502 presses against the concrete through the rubber airbag 501. The slurry pump 1 is started to push the filling slurry for transportation, so that the filling slurry is filled into the crack. When the slurry pump 1 stops working, the operator pulls the handle 6 outward to remove the device. S4. Check the filled gaps.

[0034] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A construction device for preventing and controlling cracks in super-high concrete bridge towers, comprising a slurry pump (1) and a fixing plate (3), characterized in that: The top of the slurry delivery pump (1) is fixedly connected to a transport pipe (2), the top of the fixed plate (3) is fixedly connected to a handle (6), the bottom of the handle (6) is movably connected to a quantitative mechanism (4), and the bottom of the quantitative mechanism (4) is fixedly connected to a leveling mechanism (5); Quantitative institutions (4) include: A blocking sleeve (404), the blocking sleeve (404) being fixedly connected to an end of the transport pipe (2) away from the slurry delivery pump (1); A rotating tube (410), the rotating tube (410) being arranged at the bottom of the blocking sleeve (404); The movable tube (413) is movably connected to the bottom of the rotating tube (410).

2. The construction device for preventing and controlling cracks in super-high concrete bridge towers according to claim 1 is characterized in that: The top of the fixed plate (3) is movably connected to a fixed sleeve (401), the bottom of the fixed sleeve (401) is fixedly connected to a fixed platform (411), the interior of the fixed sleeve (401) is fixedly connected to a connecting pipe (402), the connecting pipe (402) is fixedly connected to the bottom of the blocking sleeve (404), the outer wall of the rotating tube (410) is movably connected to the connecting pipe (402) via a bearing, and the bottom of the fixed platform (411) is fixedly connected to a contact platform (412).

3. The construction device for preventing and controlling cracks in super-high concrete bridge towers according to claim 2, characterized in that: The blocking sleeve (404) is movably connected to a blocking plate (405) inside, the blocking plate (405) is fixedly connected to a second connecting rod (407) on the right side, the second connecting rod (407) is fixedly connected to a first spring (408) on the right side, the first spring (408) is fixedly connected to the top of the fixed platform (411), the blocking sleeve (404) is fixedly connected to a first connecting rod (406) on the left side, the first connecting rod (406) is fixedly connected to a standby magnet (409) on the left side, the outer wall of the movable tube (413) is fixedly connected to a trigger rod (414), and the top of the trigger rod (414) is fixedly connected to a trigger magnet (403) at a position corresponding to the standby magnet (409).

4. The construction device for preventing and controlling cracks in super-high concrete bridge towers according to claim 3 is characterized in that: The leveling mechanism (5) comprises a rubber airbag (501), wherein the rubber airbag (501) is fixedly connected to the bottom of the contact platform (412), and the bottom of the contact platform (412) is located inside the rubber airbag (501) and is fixedly connected to three support blocks (502).

5. The construction device for preventing and controlling cracks in super-high concrete bridge towers according to claim 4 is characterized in that: The bottom of the fixed platform (411) is fixedly connected to a driving motor (503), the top of the driving motor (503) is movably connected to a transmission belt (504), the transmission belt (504) is movably connected to the outer wall of the rotating tube (410), and the outer wall of the rotating tube (410) is fixedly connected to an eccentric block (508).

6. The construction device for preventing and controlling cracks in super-high concrete bridge towers according to claim 5, characterized in that: A spiral plate (509) is fixedly connected inside the movable tube (413), a second spring (507) is fixedly connected to the top of the movable tube (413), and the top of the second spring (507) is movably connected to the outer wall of the rotating tube (410) through a bearing.

7. The construction device for preventing and controlling cracks in super-high concrete bridge towers according to claim 6, characterized in that: The inner wall of the rotating tube (410) is fixedly connected to a connecting sleeve (505), and the inner wall of the moving tube (413) is fixedly connected to an inserting block (506) at a position corresponding to the connecting sleeve (505).

8. A construction method using the construction device for preventing and controlling cracks in super-high concrete bridge towers according to claim 7, characterized in that: S1. Use a soft cleaning brush to insert into the gap of the bridge tower and brush it, then use a vacuum cleaner to suck out the dust in the gap; S2. After completing the cleaning of the inside of the gap, prepare the filling slurry; S3. Place the feed structure of the slurry pump (1) into the prepared filling slurry. The operator holds the handle (6), inserts the movable tube (413) into the gap, and pushes the handle (6) toward the bridge tower until the support block (502) supports the concrete through the rubber airbag (501). Start the slurry pump (1) and make the slurry pump (1) push the filling slurry for transportation, so that the filling slurry is filled into the crack. When the slurry pump (1) stops working, the operator pulls the handle (6) outward to remove the device. S4. Check the filled gaps.

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