Pier column connection concrete pouring device and method after bridge jacking
By designing a concrete pouring device for connecting bridge pier columns including rotating cylinders, leaf plates and scraping frames, the problems of vibration difficulties, incomplete casting and adhesion of mixing leaves in traditional methods are solved, and efficient and uniform concrete pouring and mixing effects are achieved.
Patent Information
- Application Number
- CN202510557176.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2025-06-20
AI Technical Summary
The traditional method of connecting concrete with bridge pier columns has difficulties in vibration, may require batch pouring, and the concrete pouring is not dense. Especially when the pier column size is large and the casting height is high, these problems are more prominent, affecting the construction quality and efficiency. In addition, the concrete may adhere to the mixing leaves during secondary mixing of the existing concrete pouring device, affecting the mixing effect.
A concrete casting device for connecting the rear pier column of the bridge is provided, including a support table and a mixing member. The mixing member is composed of a rotating cylinder, an internal toothed ring, a hopper, a material pipe, a first connecting rod, a first blade plate and a scraping frame. The uniform casting and stirring of the concrete is achieved through the coordination of the rotating cylinder and the gear ring, and the scraping frame is used to remove concrete attached to the blade.
Through the cooperation of the rotating cylinder and the blade, the device can effectively mix and pour concrete, ensure the compactness and quality of the concrete, avoid the problem of concrete adhering to the mixing leaves, and improve construction efficiency and quality.
Smart Images
Figure CN120174740A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of civil engineering, and in particular to a device and method for pouring concrete for connecting piers after bridge lifting. Background Art
[0002] After the bridge is lifted into place, pouring concrete for the pier-column connection is a key step. In the traditional method, the feed port of the template is set on the top side, and concrete is poured from the side, which has defects such as difficulty in vibration, the need for pouring in batches, and loose concrete pouring. Especially when the pier is large in size and the pouring height is high, these problems are more prominent, affecting the construction quality and efficiency. These problems seriously affect the quality of the pier-column connection, and then affect the overall safety and service life of the bridge; Moreover, when the existing concrete pouring device performs secondary mixing of concrete, part of the concrete may adhere to the stirring blade, affecting the normal stirring of the stirring blade. Summary of the invention
[0003] To this end, the present invention provides a device and method for pouring concrete for connecting piers after bridge jacking to solve the above-mentioned problems.
[0004] The present invention provides the following technical solution: a concrete pouring device for connecting piers after bridge lifting, comprising a support platform, a mixing component is fixedly provided on the top of the support platform; The mixing component includes a gear ring, the bottom of which is rotatably connected to the top of the support platform, the top of the gear ring is fixedly connected to a rotating cylinder, the interior of the rotating cylinder is slidably connected to a hopper, the bottom of the hopper is fixedly connected to a material pipe, and the material pipe is fixedly installed on the bottom of the support platform, the inner wall of the rotating cylinder is fixedly connected to an inner gear ring, the inner wall of the hopper is slidably connected to a first connecting rod, the top of the first connecting rod is fixedly connected to a first gear, the inner ring of the inner gear ring is meshed with the surface of the first gear, there are two first connecting rods, the two first connecting rods are distributed in an upper and lower array, and the bottom of the first connecting rod at the top is fixedly connected to a first connecting pipe.
[0005] As a preferred solution of the present invention, a first connecting ring is fixedly connected to the top of the surface of the first connecting pipe. A first vane is fixedly connected to the surface of the first connecting ring. A second connecting pipe is slidably sleeved on the surface of the first connecting pipe. The top of the bottom first connecting rod is fixedly connected to a third connecting pipe. A first key groove is formed in the pipe wall of the second connecting pipe. A first key block is fixedly connected to the surface of the first connecting pipe. The surface of the first key block is slidably connected to the groove wall of the first key groove. A second connecting ring is fixedly connected to the top of the surface of the second connecting pipe. A second vane is fixedly connected to the surface of the second connecting ring. A second key groove is formed in the pipe wall of the third connecting pipe. A second key block is fixedly connected to the surface of the second connecting pipe. The surface of the second key block is slidably connected to the groove wall of the second key groove. A third connecting ring is fixedly connected to the top of the surface of the third connecting pipe. A third vane is fixedly connected to the surface of the third connecting ring. A scraping frame is fixedly connected to the surface of the third connecting ring. The number of the first vanes and the second vanes is four each. The four first vanes and second vanes are both distributed in an annular array. The number of the scraping frames is eight. The eight scraping frames are distributed in an annular array. The scraping frames are in one-to-one correspondence with the first vanes and the second vanes in the vertical direction. The inner wall of the scraping frame abuts against the surfaces of the first vanes and the second vanes.
[0006] As a preferred solution of the present invention, a first L-shaped plate is fixedly connected to the bottom of the support platform. A first rotating rod is rotatably connected to the inner wall of the first L-shaped plate. The surface of the first rotating rod is rotatably connected to the inner wall of the support platform. A second gear is fixedly connected to the top of the first rotating rod. The surface of the second gear is meshed with the outer ring of the gear ring. A reciprocating thread groove is formed in the surface of the first rotating rod. A second L-shaped plate is threadedly connected to the surface of the reciprocating thread groove. A lifting ring is fixedly connected to the bottom of the second L-shaped plate. A sliding plate is slidably connected to the inner wall of the second L-shaped plate. The top of the sliding plate is fixedly connected to the bottom of the support platform.
[0007] As a preferred solution of the present invention, tooth plates are fixedly connected to the front and back sides on the right side of the bottom of the support platform. U-shaped frames are fixedly connected to the front and back sides of the bottom of the lifting ring. A second connecting rod is fixedly connected to the inner wall of the U-shaped frame. A bidirectional threaded rod is rotatably connected to the inner wall of the U-shaped frame. Moving blocks are threadedly connected to the left and right sides of the surface of the bidirectional threaded rod. A connecting frame is fixedly connected to the inner side of the moving block. A second rotating rod is rotatably connected to the inner wall of the connecting frame. A connecting rod is fixedly connected to the surface of the second rotating rod. A rubber ball is fixedly connected to the end of the connecting rod. A third gear is fixedly connected to the right end of the bidirectional threaded rod. The surface of the third gear is meshed with the tooth plate.
[0008] As a preferred embodiment of the present invention, the number of the connecting rods is four. The connecting rods on the front and rear sides are symmetrically distributed front and back, and the connecting rods on the left and right sides are cross-distributed. The number of the rubber balls is two, and the two rubber balls are symmetrically distributed front and back.
[0009] As a preferred embodiment of the present invention, a rotating motor is fixedly connected to the bottom of the first L-shaped plate, and the output end of the rotating motor is fixedly connected to the bottom of the first rotating rod through a coupling.
[0010] As a preferred embodiment of the present invention, a cylinder cover is placed on the top of the rotating cylinder. Third L-shaped plates are fixedly connected to the left and right sides of the top of the cylinder cover, and the bottom of the third L-shaped plate is fixedly connected to the top of the support platform.
[0011] As a preferred embodiment of the present invention, a method for concrete pouring of the connection between the pier columns after the bridge is jacked up includes the following steps: S1, Construction preparation: After the pier column jacking is completed, clean the cutting surface of the pier column and the sundries around it to ensure the firm connection of the steel bars. Check the formwork to ensure that the formwork is not deformed and the splicing is tight. At the same time, debug the pump truck to ensure its normal operation, and prepare the concrete that meets the design requirements; S2, Installation of the device: Install and fix the formwork around the part of the pier column to be poured to ensure that the verticality of the formwork meets the requirements. Then tightly connect the concrete pouring pipe to the feeding port in the middle and lower part of the formwork. Sealing rubber rings or other methods can be used to ensure the tightness of the connection part and prevent concrete leakage; S3, Concrete pouring: Start the pump truck and press the concrete into the formwork through the pressure of the pump truck. Since the feeding port is in the middle and lower part of the formwork, the concrete is poured from bottom to top. During the pouring process, the pressure generated by the self-weight of the concrete itself is utilized to make the concrete gradually fill the formwork space during the rising process and ensure the compactness of the concrete. According to the height of the pier column and the concrete pouring speed, reasonably control the pumping pressure and pumping volume of the pump truck to ensure the continuity of concrete pouring; S4, Monitoring: Monitor the concrete pouring situation in real time through the observation port to check whether the concrete is poured evenly and whether there is slurry leakage or other problems; S5, Treatment after pouring is completed: When the concrete overflows slurry at multiple places at the top of the formwork, maintain the pumping pressure for 5 minutes, stop pumping, knock down the vertical insertion plate at the connection joint of the pouring port, block the feeding port and remove the pumping pipe. After the concrete reaches a certain strength, remove the formwork and the concrete pouring pipe, and repair and maintain the surface of the pier column to ensure the quality of the connection part of the pier column.
[0012] Compared with the prior art, the beneficial effects of the present invention are: In the present invention, different components are fixedly connected to the first connecting rod. On the surface of the first connecting pipe of the top first connecting rod, there are a first connecting ring and a first vane, and on the surface of the third connecting pipe, there are a third connecting ring and a third vane. The third connecting pipe of the bottom first connecting rod is also connected to a second vane through a second connecting pipe. The number of the first vanes and the second vanes is four each and they are distributed in an annular array. The number of scraping frames is eight and they are in one-to-one correspondence and in contact with them in the perpendicular direction. When the first connecting rod slides up and down, it drives the vanes and the scraping frames to move. The vanes can stir and mix the concrete, and the scraping frames can scrape off the concrete attached to the vanes to ensure the stirring effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 for the present invention Figure 1 is a schematic diagram of a partial structure; Figure 3 for the present invention Figure 2 is a sectional view of a partial structure; Figure 4 for the present invention Figure 3 is a schematic diagram of the internal structure; Figure 5 for the present invention Figure 4 is a bottom view of a partial structure; Figure 6 is a schematic diagram of the vane component structure of the present invention; Figure 7 for the present invention Figure 6 is an enlarged view of part A; Figure 8 for the present invention Figure 6 is an enlarged view of part B; Figure 9 for the present invention Figure 5 is an enlarged view of part C; Figure 10 is a flow chart of the concrete pouring method for the connection of the pier column after the bridge jacking of the present invention.
[0014] In the figure: 1, support platform; 2, third L-shaped plate; 3, cylinder cover; 4, mixing component; 401, rotating cylinder; 402, internal gear ring; 403, first gear; 404, hopper; 405, gear ring; 406, second gear; 407, first L-shaped plate; 408, rotating motor; 409, first rotating rod; 410, reciprocating thread groove; 411, sliding plate; 412, second L-shaped plate; 413, lifting ring; 414, toothed plate; 415, first connecting rod; 416, material pipe; 417, second vane; 418, third gear; 419, rubber ball; 420, U-shaped frame; 421, moving block; 422, bidirectional threaded rod; 423, connecting frame; 424, connecting rod; 425, second rotating rod; 426, third vane; 427, first vane; 428, first connecting pipe; 429, first key block; 430, second connecting ring; 431, second connecting pipe; 432, first key groove; 433, first connecting ring; 434, scraping frame; 435, second key block; 436, third connecting pipe; 437, second key groove; 438, third connecting ring; 439, second connecting rod. Detailed implementation mode
[0015] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0016] Please refer to Figures 1 - 10 , the technical solutions provided by the present invention specifically include the following embodiments: Embodiment: A concrete pouring device for connecting piers after bridge jacking, including a support platform 1, and a mixing component 4 is fixedly arranged on the top of the support platform 1; The mixing component 4 includes a gear ring 405, the bottom of the gear ring 405 is rotatably connected to the top of the support platform 1, the top of the gear ring 405 is fixedly connected with a rotating cylinder 401, a hopper 404 is slidably connected inside the rotating cylinder 401, the bottom of the hopper 404 is fixedly connected with a material pipe 416, the material pipe 416 is fixedly installed at the bottom of the support platform 1, an internal gear ring 402 is fixedly connected to the inner wall of the rotating cylinder 401, a first connecting rod 415 is slidably connected to the inner wall of the hopper 404, the top of the first connecting rod 415 is fixedly connected with a first gear 403, the inner ring of the internal gear ring 402 is meshed with the surface of the first gear 403, the number of the first connecting rods 415 is two, the two first connecting rods 415 are arranged in an upper and lower array, and the bottom of the upper first connecting rod 415 is fixedly connected with a first connecting pipe 428; The rotating cylinder 401 is rotatably connected to the top of the support platform 1 through a gear ring 405 and can rotate around the support platform 1. The hopper 404 is slidably connected inside the rotating cylinder 401, and the material pipe 416 at its bottom is fixedly installed at the bottom of the support platform 1. When the rotating cylinder 401 rotates, the hopper 404 remains stationary. A first L-shaped plate 407 is fixedly connected to the bottom of the support platform 1. The top of the first rotating rod 409 rotatably connected to the inner wall thereof is fixedly connected with a second gear 406, which meshes with the outer ring of the second gear ring 405. The rotating motor 408 drives the first rotating rod 409 to rotate, thereby driving the gear ring 405 and the rotating cylinder 401 to rotate through the second gear 406, realizing the rotational movement of the rotating cylinder, and thus the concrete can be mixed.
[0017] The top of the surface of the first connecting pipe 428 is fixedly connected with a first connecting ring 433. The surface of the first connecting ring 433 is fixedly connected with a first vane 427. The surface of the first connecting pipe 428 is slidably sleeved with a second connecting pipe 431. The top of the first connecting rod 415 at the bottom is fixedly connected with a third connecting pipe 436. A first key groove 432 is formed in the pipe wall of the second connecting pipe 431. A first key block 429 is fixedly connected to the surface of the first connecting pipe 428. The surface of the first key block 429 is slidably connected with the groove wall of the first key groove 432. The top of the surface of the second connecting pipe 431 is fixedly connected with a second connecting ring 430. The surface of the second connecting ring 430 is fixedly connected with a second vane 417. A second key groove 437 is formed in the pipe wall of the third connecting pipe 436. A second key block 435 is fixedly connected to the surface of the second connecting pipe 431. The surface of the second key block 435 is slidably connected with the groove wall of the second key groove 437. The top of the surface of the third connecting pipe 436 is fixedly connected with a third connecting ring 438. The surface of the third connecting ring 438 is fixedly connected with a third vane 426. A scraping frame 434 is fixedly connected to the surface of the third connecting ring 438. The number of both the first vanes 427 and the second vanes 417 is four. The four first vanes 427 and the second vanes 417 are both distributed in an annular array. The number of the scraping frames 434 is eight. The eight scraping frames 434 are distributed in an annular array. The scraping frames 434 are in one-to-one correspondence with the first vanes 427 and the second vanes 417 in the vertical direction. The inner wall of the scraping frame 434 abuts against the surfaces of the first vanes 427 and the second vanes 417. Different components are fixedly connected to the first connecting rod 415 respectively. On the surface of the first connecting pipe 428 of the first connecting rod 415 at the top, there are a first connecting ring 433 and a first vane 427. On the surface of the third connecting pipe 436, there are a third connecting ring 438 and a third vane 426. The third connecting pipe 436 of the first connecting rod 415 at the bottom is also connected to the second vane 417 through the second connecting pipe 431. The number of the first vanes 427 and the second vanes 417 is four each and they are distributed in an annular array. The number of scraping frames 434 is eight and they are in one-to-one correspondence and abutted in the perpendicular direction to them. When the first connecting rod 415 slides up and down, it drives the vanes and the scraping frames to move. The vanes can stir and mix the concrete, and the scraping frames can scrape off the concrete attached to the vanes to ensure the stirring effect.
[0018] The bottom of the support platform 1 is fixedly connected with a first L-shaped plate 407. The inner wall of the first L-shaped plate 407 is rotatably connected with a first rotating rod 409. The surface of the first rotating rod 409 is rotatably connected with the inner wall of the support platform 1. The top of the first rotating rod 409 is fixedly connected with a second gear 406. The surface of the second gear 406 is meshed with the outer ring of the gear ring 405. The surface of the first rotating rod 409 is provided with a reciprocating thread groove 410. A second L-shaped plate 412 is threadedly connected to the surface of the reciprocating thread groove 410. The bottom of the second L-shaped plate 412 is fixedly connected with a lifting ring 413. The inner wall of the second L-shaped plate 412 is slidably connected with a sliding plate 411. The top of the sliding plate 411 is fixedly connected with the bottom of the support platform 1; Due to the reciprocating thread groove 410 provided on the surface of the first rotating rod 409, the second L-shaped plate 412 connected by thread can make a reciprocating up and down movement along with the rotation of the first rotating rod 409. The lifting ring 413 at the bottom of the second L-shaped plate 412 moves accordingly. The sliding plate 411 plays a guiding role for the second L-shaped plate 412, facilitating the use of the device.
[0019] On the front and back sides of the right side of the bottom of the support platform 1, tooth plates 414 are fixedly connected respectively. On the front and back sides of the bottom of the lifting ring 413, U-shaped frames 420 are fixedly connected respectively. The inner wall of the U-shaped frame 420 is fixedly connected with a second connecting rod 439. The inner wall of the U-shaped frame 420 is rotatably connected with a bidirectional threaded rod 422. On the left and right sides of the surface of the bidirectional threaded rod 422, moving blocks 421 are threadedly connected respectively. The inner side of the moving block 421 is fixedly connected with a connecting frame 423. The inner wall of the connecting frame 423 is rotatably connected with a second rotating rod 425. The surface of the second rotating rod 425 is fixedly connected with a connecting rod 424. The end of the connecting rod 424 is fixedly connected with a rubber ball 419. The right end of the bidirectional threaded rod 422 is fixedly connected with a third gear 418. The surface of the third gear 418 is meshed with the tooth plate 414; The right end of the bidirectional threaded rod 422 in the U-shaped frame 420, which is slidably connected to the inner wall of the second L-shaped plate 412 through the toothed plates 414 on the front and rear sides of the right side of the bottom of the support platform 1, meshes with the third gear 418. When the lifting ring 413 moves, the bidirectional threaded rod 422 is driven to rotate through the U-shaped frame 420. The moving blocks 421 on the left and right sides of the surface of the bidirectional threaded rod 422 move towards or away from each other, thereby driving the connecting frame 423 and the connecting rod 424 to move, changing the position of the rubber ball 419, and impacting the material pipe 416 to prevent concrete from adhering to the inner wall of the material pipe 416.
[0020] The number of the connecting rods 424 is four. The connecting rods 424 on the front and rear sides are symmetrically distributed front and rear, and the connecting rods 424 on the left and right sides are cross-distributed. The number of the rubber balls 419 is two, and the two rubber balls 419 are symmetrically distributed front and rear.
[0021] A rotating motor 408 is fixedly connected to the bottom of the first L-shaped plate 407. The output end of the rotating motor 408 is fixedly connected to the bottom of the first rotating rod 409 through a coupling.
[0022] A cylinder cover 3 is placed on the top of the rotating cylinder 401. Both the left and right sides of the top of the cylinder cover 3 are fixedly connected with third L-shaped plates 2, and the bottoms of the third L-shaped plates 2 are fixedly connected with the top of the support platform 1.
[0023] A method for pouring concrete for connecting piers after bridge jacking includes the following steps: S1, construction preparation: After the pier jacking is completed, clean the cutting surface of the pier and the surrounding sundries, ensure that the steel bars are firmly connected, check the formwork to ensure that the formwork has no deformation and is tightly spliced. At the same time, debug the pump truck to ensure its normal operation, and prepare the concrete that meets the design requirements. S2, installation of the device: Install and fix the formwork around the part of the pier to be poured, ensure that the verticality of the formwork meets the requirements, and then tightly connect the concrete pouring pipe with the feeding port in the middle and lower part of the formwork. Sealing rubber rings or other methods can be used to ensure the tightness of the connection part and prevent concrete leakage. S3, concrete pouring: Start the pump truck, and press the concrete into the formwork through the pressure of the pump truck. Since the feeding port is in the middle and lower part of the formwork, the concrete is poured from bottom to top. During the pouring process, use the self-weight of the concrete itself to generate pressure, so that the concrete gradually fills the formwork space during the rising process and ensure the density of the concrete. According to the height of the pier and the concrete pouring speed, reasonably control the pumping pressure and pumping volume of the pump truck to ensure the continuity of concrete pouring. S4, monitoring: Monitor the concrete pouring situation in real time through the observation port, and check whether the concrete is poured evenly and whether there is slurry leakage and other problems. S5, Treatment after pouring: After the concrete overflows from multiple places at the top of the formwork, maintain the pumping pressure for 5 minutes, then stop pumping. Hammer down the vertical shutter at the connection joint of the pouring port, seal the feeding port and remove the pumping pipe. After the concrete reaches a certain strength, remove the formwork and the concrete pouring pipe, and repair and cure the surface of the pier column to ensure the quality of the connection part of the pier column.
[0024] Clean the cutting surface of the pier column and the sundries around it to ensure the firm connection of the steel bars. Check the perpendicularity and splicing of the formwork, debug the pump truck and prepare qualified concrete. These steps create good conditions for the subsequent pouring work, ensure the pouring quality and the structural stability of the pier column. Install and fix the formwork around the part of the pier column to be poured and ensure the perpendicularity. Connect the concrete pouring pipe tightly with the feeding port of the formwork and seal it to prevent concrete leakage, ensuring that the concrete can enter the formwork as required during the pouring process. Use the pressure of the pump truck to press the concrete into the formwork from the lower-middle feeding port. Due to the self-weight of the concrete, it generates pressure and gradually fills the formwork space from bottom to top. Reasonably control the pumping pressure and pumping volume of the pump truck to ensure the continuity and compactness of the concrete pouring, making the overall structure of the pier column uniform. Monitor the concrete pouring situation in real time through the observation port, timely discover problems such as uneven pouring or leakage and take measures to solve them to ensure the pouring quality. After the concrete overflows from multiple places at the top of the formwork, maintain the pumping pressure for a period of time to ensure that the concrete fills the formwork and is fully compacted. Hammer down the vertical shutter to seal the feeding port and remove the pumping pipe. After the concrete reaches a certain strength, remove the formwork and the pouring pipe, and repair and cure the surface of the pier column to ensure the quality and appearance of the connection part of the pier column. The present invention provides a device and method for pouring concrete for connecting piers after bridge jacking. When working, the rotating cylinder 401 is rotatably connected to the top of the support platform 1 through the gear ring 405 and can rotate around the support platform 1. The hopper 404 is slidably connected inside the rotating cylinder 401, and the material pipe 416 at the bottom is fixedly installed at the bottom of the support platform 1. When the rotating cylinder 401 rotates, the hopper 404 does not move, and the bottom of the support platform 1 is fixedly connected to a first L-shaped plate 407, and the top of the first rotating rod 409 rotatably connected to the inner wall is fixedly connected to a second gear 406, which meshes with the outer ring of the second gear ring 405, and the rotating motor 40 8 drives the first rotating rod 409 to rotate, thereby driving the gear ring 405 and the rotating cylinder 401 to rotate through the second gear 406, so as to realize the rotating movement of the rotating cylinder. A reciprocating thread groove 410 is provided on the surface of the first rotating rod 409, and the second L-shaped plate 412 connected by thread can reciprocate up and down with the rotation of the first rotating rod 409, and the lifting ring 413 at the bottom of the second L-shaped plate 412 moves accordingly, and the slide plate 411 guides the second L-shaped plate 412. Different components are fixedly connected to the first connecting rod 415, and the surface of the first connecting pipe 428 of the top first connecting rod 415 has a first The connecting ring 433 and the first blade 427, the third connecting tube 436 has a third connecting ring 438 and the third blade 426 on its surface, the third connecting tube 436 of the first connecting rod 415 at the bottom is also connected to the second blade 417 through the second connecting tube 431, the first blade 427 and the second blade 417 are both four in number and distributed in a circular array, the scraping frame 434 is eight in number and corresponds to and abuts against them in a vertical direction, when the first connecting rod 415 slides up and down, the blade and the scraping frame are driven to move, the blade can mix the concrete, and the scraping frame can remove the concrete attached to the blade Scrape off to ensure the mixing effect. The toothed plates 414 on the front and rear sides of the right side of the bottom of the support platform 1 are meshed with the third gear 418 on the right end of the bidirectional threaded rod 422 in the U-shaped frame 420 that is slidably connected to the inner wall of the second L-shaped plate 412. When the lifting ring 413 moves, the bidirectional threaded rod 422 is driven to rotate through the U-shaped frame 420. The moving blocks 421 on the left and right sides of the surface of the bidirectional threaded rod 422 move toward or away from each other, thereby driving the connecting frame 423 and the connecting rod 424 to move, changing the position of the rubber ball 419, and hitting the material pipe 416 to prevent concrete from adhering to the inner wall of the material pipe 416; Clean the cutting surface of the pier column and the sundries around it, ensure the firm connection of the steel bars, check the perpendicularity and splicing of the formwork, debug the concrete pump truck and prepare qualified concrete. These steps create good conditions for the subsequent pouring work, ensure the pouring quality and the structural stability of the pier column. Install and fix the formwork around the part of the pier column to be poured and ensure the perpendicularity. Connect the concrete pouring pipe tightly with the feeding port of the formwork and seal it to prevent the leakage of concrete, and ensure that the concrete can enter the formwork according to the design requirements during the pouring process. Use the pressure of the pump truck to press the concrete into the formwork from the lower-middle feeding port. Due to the pressure generated by the self-weight of the concrete, the formwork space is gradually filled from bottom to top. Reasonably control the pumping pressure and pumping volume of the pump truck to ensure the continuity and density of the concrete pouring, make the overall structure of the pier column uniform. Monitor the concrete pouring situation in real time through the observation port, timely discover problems such as uneven pouring or slurry leakage and take measures to solve them to ensure the pouring quality. When the concrete overflows slurry at multiple places at the top of the formwork during pouring, maintain the pumping pressure for a period of time to ensure that the formwork is filled with concrete and is fully compacted. Hammer down the vertical baffle to block the feeding port and remove the pumping pipe. After the concrete reaches a certain strength, remove the formwork and the pouring pipe, and repair and maintain the surface of the pier column to ensure the quality and appearance of the connection part of the pier column.
[0025] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention.
Claims
1. A concrete pouring device for connecting piers after bridge lifting, characterized in that: It comprises a support platform (1), a mixing component (4) being fixedly provided on the top of the support platform (1); The mixing component (4) comprises a gear ring (405), the bottom of the gear ring (405) is rotatably connected to the top of the support platform (1), the top of the gear ring (405) is fixedly connected to a rotating cylinder (401), the interior of the rotating cylinder (401) is slidably connected to a hopper (404), the bottom of the hopper (404) is fixedly connected to a material pipe (416), the material pipe (416) is fixedly installed on the bottom of the support platform (1), and the inner wall of the rotating cylinder (401) is fixedly connected to an inner hopper (404). The gear ring (402) is slidably connected to the inner wall of the hopper (404) with a first connecting rod (415), the top of the first connecting rod (415) is fixedly connected to the first gear (403), the inner ring of the inner gear ring (402) is meshed with the surface of the first gear (403), the number of the first connecting rods (415) is two, the two first connecting rods (415) are distributed in an upper and lower array, and the bottom of the first connecting rod (415) at the top is fixedly connected to the first connecting tube (428).
2. A concrete pouring device for connecting piers after bridge lifting according to claim 1, characterized in that: The top of the surface of the first connecting tube (428) is fixedly connected to a first connecting ring (433), the surface of the first connecting ring (433) is fixedly connected to a first blade (427), the surface of the first connecting tube (428) is slidably sleeved with a second connecting tube (431), the top of the first connecting rod (415) at the bottom is fixedly connected to a third connecting tube (436), the tube wall of the second connecting tube (431) is provided with a first key groove (432), the surface of the first connecting tube (428) is fixedly connected to a first key block (429), the surface of the first key block (429) is slidably connected to the groove wall of the first key groove (432), the top of the surface of the second connecting tube (431) is fixedly connected to a second connecting ring (430), the surface of the second connecting ring (430) is fixedly connected to a second blade (417), the tube wall of the third connecting tube (436) is provided with a second key groove (437), the second connecting tube (431) A second key block (435) is fixedly connected to the surface of the third connecting tube (436); the surface of the second key block (435) is slidably connected to the groove wall of the second key groove (437); a third connecting ring (438) is fixedly connected to the top of the surface of the third connecting tube (436); the surface of the third connecting ring (438) is fixedly connected to the third blade plate (426); the surface of the third connecting ring (438) is fixedly connected to the scraper frame (434); the number of the first blade plates (427) and the second blade plates (417) are both four, and the four first blade plates (427) and the second blade plates (417) are distributed in a ring array; the number of the scraper frames (434) is eight, and the eight scraper frames (434) are distributed in a ring array; the scraper frames (434) correspond one to one with the first blade plates (427) and the second blade plates (417) in the vertical direction; the inner wall of the scraper frame (434) abuts against the surface of the first blade plate (427) and the second blade plate (417).
3. The concrete pouring device for connecting piers after bridge lifting according to claim 1 is characterized in that: The bottom of the support platform (1) is fixedly connected to a first L-shaped plate (407), the inner wall of the first L-shaped plate (407) is rotatably connected to a first rotating rod (409), the surface of the first rotating rod (409) is rotatably connected to the inner wall of the support platform (1), the top of the first rotating rod (409) is fixedly connected to a second gear (406), the surface of the second gear (406) is meshed with the outer ring of the gear ring (405), the surface of the first rotating rod (409) is provided with a reciprocating thread groove (410), the surface of the reciprocating thread groove (410) is threadedly connected to a second L-shaped plate (412), the bottom of the second L-shaped plate (412) is fixedly connected to a lifting ring (413), the inner wall of the second L-shaped plate (412) is slidably connected to a slide plate (411), and the top of the slide plate (411) is fixedly connected to the bottom of the support platform (1).
4. A concrete pouring device for connecting piers after bridge lifting according to claim 3, characterized in that: The front and rear sides of the right side of the bottom of the support platform (1) are fixedly connected to a toothed plate (414); the front and rear sides of the bottom of the lifting ring (413) are fixedly connected to a U-shaped frame (420); the inner wall of the U-shaped frame (420) is fixedly connected to a second connecting rod (439); the inner wall of the U-shaped frame (420) is rotatably connected to a bidirectional threaded rod (422); the left and right sides of the surface of the bidirectional threaded rod (422) are threadedly connected to a moving block (421); the inner side of the moving block (421) is fixedly connected to a connecting frame (423); the inner wall of the connecting frame (423) is rotatably connected to a second rotating rod (425); the surface of the second rotating rod (425) is fixedly connected to a connecting rod (424); the end of the connecting rod (424) is fixedly connected to a rubber ball (419); the right end of the bidirectional threaded rod (422) is fixedly connected to a third gear (418); the surface of the third gear (418) is meshed with the toothed plate (414).
5. A concrete pouring device for connecting piers after bridge lifting according to claim 4, characterized in that: The number of the connecting rods (424) is four, the connecting rods (424) on the front and rear sides are symmetrically distributed front and back, and the connecting rods (424) on the left and right sides are cross-distributed. The number of the rubber balls (419) is two, and the two rubber balls (419) are symmetrically distributed front and back.
6. The concrete pouring device for connecting piers after bridge lifting according to claim 3 is characterized by: A rotating motor (408) is fixedly connected to the bottom of the first L-shaped plate (407), and an output end of the rotating motor (408) is fixedly connected to the bottom of the first rotating rod (409) via a coupling.
7. The concrete pouring device for connecting piers after bridge lifting according to claim 1 is characterized by: A cylinder cover (3) is placed on the top of the rotating cylinder (401), and third L-shaped plates (2) are fixedly connected to the left and right sides of the top of the cylinder cover (3), and the bottom of the third L-shaped plate (2) is fixedly connected to the top of the support platform (1).
8. A method for pouring concrete for connecting piers after bridge jacking, characterized in that: The following steps are involved: S1, Construction preparation: After the pier column is lifted, clean the cut surface of the pier column and surrounding debris, ensure that the steel bars are firmly connected, check the formwork to ensure that there is no deformation and the splicing is tight, debug the pump truck to ensure that it can work normally, and prepare concrete that meets the design requirements; S2, installation device: install and fix the template around the part to be poured on the pier column, ensure that the verticality of the template meets the requirements, and then tightly connect the concrete pouring pipe with the inlet in the middle and lower part of the template. Sealing rubber rings and other methods can be used to ensure the sealing of the connection part to prevent concrete leakage; S3, concrete pouring: Start the pump truck and use the pressure of the pump truck to press the concrete into the formwork. Since the feed port is in the lower middle part of the formwork, the concrete is poured from bottom to top. During the pouring process, the concrete's own weight is used to generate pressure, so that the concrete gradually fills the formwork space during the rising process and ensures the density of the concrete. According to the pier height and concrete pouring speed, the pumping pressure and pumping volume of the pump truck are reasonably controlled to ensure the continuity of concrete pouring; S4, Monitoring: Real-time monitoring of concrete pouring through the observation port to check whether the concrete is poured evenly and whether there is leakage; S5, pouring completion processing: When the concrete is poured to the top of the formwork and the slurry overflows in multiple places, maintain the pumping pressure for 5 minutes, stop pumping, smash down the vertical plug at the pouring port connection joint, seal the feed port and remove the pumping pipe. After the concrete reaches a certain strength, remove the formwork and concrete pouring pipe, and trim and maintain the pier surface to ensure the quality of the pier connection.