Bridge construction concrete excess material recovery device

By designing a concrete waste recycling device for bridge construction, the device utilizes the kinetic energy of falling concrete waste to power the device. Combined with synchronous gears and multi-stage screens, it solves the problems of low energy efficiency and unstable screening of existing equipment, and achieves efficient concrete waste processing and recycling.

CN121869512APending Publication Date: 2026-04-17单县公路事业发展中心
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-16
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing concrete waste processing equipment has low energy efficiency, its kinetic energy is not effectively utilized, and the screening process is unstable, making it difficult to achieve efficient separation of concrete particles of different sizes.

Method used

A device for recycling residual concrete from bridge construction was designed. By setting up a crushing component and a screening component, the device uses the kinetic energy of the residual concrete during its fall to provide electrical energy. A battery is used to store the electrical energy, and synchronous gears and gear speed increasers are used to improve the crushing efficiency. The screening component achieves particle separation through multi-stage screens and a crank-connecting rod mechanism.

Benefits of technology

It improves energy efficiency, enhances the environmental friendliness of the equipment, increases the crushing and screening efficiency of concrete waste, and achieves efficient separation and recycling of particles of different sizes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of concrete excess material recycling, in particular to a bridge construction concrete excess material recycling device which is characterized in that the bridge construction concrete excess material recycling device comprises a recycling pipe, a control panel is embedded in one side of the recycling pipe, a smashing box is fixedly installed on the bottom face of the recycling pipe, and a screening box is fixedly installed on the bottom face of the smashing box; during use, excess concrete enters the recycling pipe through the feeding frame under the guidance of the guide plate and impacts the recycling impeller, so that the rotating shaft rotates and drives the power generator to generate power through the first gear speed increasing box, electric energy is stored in the storage battery, and utilization of kinetic energy of material falling is achieved; then, the driving motor drives the crushing rollers to oppositely rotate through the synchronous gears, and the concrete excess materials are crushed; and the crushed materials enter the screening box, an inner frame is driven to vibrate under the action of a second gear speed increasing box and a crank connecting rod mechanism, classified screening is conducted through a screen, discharging is conducted through inclined holes, and therefore crushing and recycling of the concrete excess materials are completed.
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Description

Technical Field

[0001] This invention relates to the field of concrete waste recycling technology, specifically to a device for recycling concrete waste from bridge construction. Background Technology

[0002] During bridge construction, a large amount of concrete is used in the construction of bridge piers, bridge deck paving, and structural reinforcement. During construction transportation, pouring, and equipment cleaning, a certain amount of concrete residue or waste concrete blocks are often generated. If these concrete residues are not recycled, it will not only waste resources but also increase the difficulty of cleaning up the construction site and may have a certain impact on the construction environment. Therefore, the recycling, crushing, and reuse of concrete residues during bridge construction is of great significance.

[0003] Existing concrete waste processing equipment typically only possesses simple crushing or screening functions, and most rely on external power sources to drive the equipment, resulting in low energy efficiency. Furthermore, the kinetic energy generated during the falling or conveying of concrete waste is often not effectively utilized. In addition, some equipment exhibits poor stability during screening, limiting screening efficiency and making it difficult to achieve efficient separation of concrete particles of different sizes. To address these issues, we propose a bridge construction concrete waste recycling device. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a bridge construction concrete waste recycling device, solving the problems mentioned in the background art.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: A device for recycling leftover concrete from bridge construction, comprising: The system includes a recycling pipe with a control panel embedded on one side, a crushing box fixedly installed on the bottom surface of the recycling pipe, and a screening box fixedly installed on the bottom surface of the crushing box; a crushing assembly located on one side of the recycling pipe for crushing concrete residue; and a screening assembly located inside the screening box for screening concrete.

[0006] By adopting the above technical solution and setting up a crushing component, the kinetic energy generated during the fall of concrete residue in the recycling pipe can be utilized, thereby providing electrical energy for the operation of the crushing and screening components, improving energy utilization efficiency, and increasing the environmental friendliness of the device.

[0007] Preferably, the pulverizing assembly includes: a storage battery, which is embedded in one side of the recycling pipe and electrically connected to the control panel; two external holes are respectively opened on the left and right sides of the interior of the pulverizing box; a first bearing is fixedly installed inside the external holes; two pulverizing rollers are arranged inside the pulverizing box; the connecting end of the pulverizing roller is fixedly connected to the adjacent first bearing; a drive motor is fixedly installed on one side of the pulverizing box; the drive motor is electrically connected to the control panel; and the output shaft of the drive motor is fixedly connected to the connecting end of the adjacent pulverizing roller.

[0008] By adopting the above technical solution, a storage battery is installed to provide power to the drive motor. Driven by the drive motor, the crushing roller rotates and crushes the concrete residue entering the crushing box, thereby achieving the crushing treatment of the concrete residue.

[0009] Preferably, the crushing assembly further includes: a plurality of inner grooves, each of which is opened on one side inside the recycling pipe, and side holes are respectively opened on the left and right sides of the inner grooves. One-way bearings are fixedly installed inside the side holes, and a rotating shaft is fixedly installed between two adjacent one-way bearings. A recycling impeller is fixedly installed on the outer wall of the rotating shaft.

[0010] By adopting the above technical solution and setting up a recycling impeller, when the concrete residue falls inside the recycling pipe, it impacts the recycling impeller, causing the recycling impeller to drive the rotating shaft to rotate, and under the action of the one-way bearing, it achieves unidirectional stable rotation.

[0011] Preferably, the pulverizing assembly further includes: a plurality of side frames, each of which is fixedly installed on one side of the recycling pipe; a first gear speed increaser is fixedly installed inside the side frame; a flywheel is fixedly installed inside the side frame; a generator is fixedly installed on one side of the side frame; the rotating shaft is fixedly connected to the input end of the adjacent first gear speed increaser; the output shaft of the first gear speed increaser is fixedly connected to the flywheel; the generator shaft is coaxially fixedly connected to the flywheel; and the generator is electrically connected to the battery.

[0012] By adopting the above technical solution, and by setting up a generator, when the rotating shaft is driven by the recovery impeller to rotate, its rotation is accelerated through the first gear speed increaser, thereby increasing the output speed and driving the flywheel to rotate. During the rotation of the flywheel, it can store some kinetic energy and reduce speed fluctuations, thus making the rotation of the generator more stable. Subsequently, it drives the generator connected to the same shaft to generate electricity, and the generated electrical energy is sent to the battery for storage. This realizes the conversion and utilization of the kinetic energy generated during the falling of concrete residue, and improves the energy utilization efficiency of the device.

[0013] Preferably, the crushing assembly further includes: a synchronizing gear, which is fixedly sleeved on the outer wall of the crushing roller connecting end, two synchronizing gears meshing together, and a housing fixedly installed on one side of the crushing roller.

[0014] By adopting the above technical solution and setting synchronous gears, when the drive motor drives one of the crushing rollers to rotate, the two crushing rollers can achieve synchronous reverse rotation through the mutual meshing of the two synchronous gears, thereby squeezing and crushing the concrete residue entering the crushing box and improving the crushing effect of the concrete residue.

[0015] Preferably, the screening assembly includes: an inner frame disposed inside the screening box, three screens fixedly installed inside the inner frame, the aperture of the three screens gradually increasing from left to right, an oblique hole opened on one side of the screening box, the oblique hole communicating with the interior of the screening box, and two baffles fixedly installed inside the oblique hole.

[0016] By adopting the above technical solution, and by setting up screens, when the crushed concrete particles enter the screening box, they fall into the inner frame and are screened through three screens with gradually increasing apertures from left to right, so that concrete particles of different sizes are separated and discharged through inclined holes. Under the action of baffles, the material is guided, thereby realizing the classification and screening of concrete particles, improving the screening effect and material utilization rate of the device.

[0017] Preferably, the screening assembly further includes: two connecting holes, which are respectively opened on the left and right sides of the screening box; side shafts are fixedly installed on the left and right sides of the inner frame, and the side shafts are sleeved together with the adjacent connecting holes; a locking hole is opened on one side of the screening box, and a bearing seat is provided inside the locking hole; the bearing seat is fixedly connected to the inner frame; a crank-connecting rod mechanism is sleeved inside the bearing seat; a second gear speed increaser is fixedly installed inside the housing; the input end of the second gear speed increaser is fixedly connected to the adjacent crushing roller connection end; and the output end of the second gear speed increaser is fixedly connected to the crank-connecting rod mechanism.

[0018] By adopting the above technical solution and setting a bearing seat, when the crushing roller rotates, it is driven by the second gear speed increaser and drives the crank connecting rod mechanism to move. This causes the bearing seat to move up and down in the retaining hole, thereby driving the inner frame to generate reciprocating vibration through the cooperation of the side shaft and the connecting hole. This causes the material on the screen to turn over continuously, improving the screening efficiency of concrete particles.

[0019] Preferably, a guide groove is provided on one side of the card hole, and a guide block is fixedly installed on one side of the bearing seat, with the guide block and the guide groove sleeved together.

[0020] By adopting the above technical solution and setting the guide groove, the bearing seat moves up and down in an arc trajectory when driven by the crank connecting rod mechanism. The movement trajectory of the bearing seat is guided and restricted by the sleeve cooperation between the guide block and the guide groove, so that the bearing seat can move stably in a predetermined direction, thereby improving the stability of the inner frame during reciprocating motion.

[0021] Preferably, a feed frame is fixedly installed on the top surface of the recycling pipe, and a guide plate is fixedly installed on one side of the feed frame.

[0022] By adopting the above technical solution and setting a guide plate, the residual concrete material can enter the recycling pipe through the feed frame during use. Under the action of the guide plate, the material is guided to smoothly enter the device and impact the recycling impeller, thereby driving the recycling impeller to rotate and realizing the utilization of the kinetic energy generated during the falling process of the material.

[0023] In summary, the present invention has the following main beneficial effects: By setting up a storage battery to provide power to the drive motor, the crushing roller rotates under the drive motor, squeezing and crushing the concrete residue entering the crushing box, thereby achieving the crushing treatment of the concrete residue. By setting up a recovery impeller, when the concrete residue falls inside the recovery pipe, it impacts the recovery impeller, causing the recovery impeller to drive the rotating shaft to rotate, and under the action of the one-way bearing, it achieves unidirectional stable rotation.

[0024] By setting up a generator, when the shaft rotates under the drive of the recovery impeller, its rotation is accelerated through the first gear speed increaser, increasing the output speed and driving the flywheel to rotate. During the rotation of the flywheel, some kinetic energy can be stored and the speed fluctuation can be reduced, thus making the generator rotate more smoothly. Subsequently, it drives the generator connected to the same shaft to generate electricity, and the generated electrical energy is sent to the battery for storage. This realizes the conversion and utilization of the kinetic energy generated during the fall of concrete residue, improving the energy utilization efficiency of the device. By setting up synchronous gears, when the drive motor drives one of the crushing rollers to rotate, the two crushing rollers can achieve synchronous reverse rotation through the meshing of the two synchronous gears, thereby squeezing and crushing the concrete residue entering the crushing box, improving the crushing effect of the concrete residue.

[0025] By setting up screens, after the crushed concrete particles enter the screening box, they fall into the inner frame and are screened through three screens with gradually increasing apertures from left to right, separating concrete particles of different sizes. The particles are then discharged through inclined holes, and guided by baffles, thus achieving the classification and screening of concrete particles, improving the screening effect and material utilization rate of the device. By setting up bearing seats, when the crushing roller rotates, it is driven by the second gear speed increaser, which drives the crank connecting rod mechanism to move. This causes the bearing seats to move up and down in the retaining holes, thereby driving the inner frame to reciprocate through the cooperation of the side shaft and the connecting holes, causing the material on the screen to continuously turn over, improving the screening efficiency of concrete particles.

[0026] By setting a guide groove, the bearing seat moves up and down in an arc trajectory when driven by the crank connecting rod mechanism. The movement trajectory of the bearing seat is guided and restricted by the sleeve cooperation between the guide block and the guide groove, so that the bearing seat can move stably in a predetermined direction, thereby improving the stability of the inner frame during reciprocating motion. By setting a guide plate, the concrete residue can enter the recycling pipe through the feed frame during use. Under the action of the guide plate, the material is guided, so that the material enters the device smoothly and impacts the recycling impeller, thereby driving the recycling impeller to rotate and realizing the utilization of the kinetic energy generated during the falling of the material. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the crushing box structure of the present invention; Figure 3 This is a schematic cross-sectional view of the recovery tube structure of the present invention; Figure 4 yes Figure 1 A magnified schematic diagram of the structure of part A in the diagram; Figure 5 This is a schematic diagram of the screening box structure of the present invention; Figure 6 This is a schematic diagram of the inner frame structure of the present invention; Figure 7 yes Figure 5 A magnified schematic diagram of part B.

[0028] Reference numerals: 100, Recycling pipe; 200, Control panel; 300, Crushing box; 400, Screening box; 500, Crushing assembly; 501, Battery; 502, Outer hole; 503, First bearing; 504, Crushing roller; 505, Drive motor; 506, Inner groove; 507, Side hole; 508, One-way bearing; 509, Rotating shaft; 510, Recycling impeller; 511, Side frame; 512, First gear speed increaser; 513 514. Flywheel; 515. Generator; 516. Synchronous gear; 517. Housing; 600. Screening assembly; 601. Inner frame; 602. Screen; 603. Inclined hole; 604. Baffle; 605. Connecting hole; 606. Side shaft; 607. Snap hole; 608. Bearing seat; 609. Crank-connecting rod mechanism; 610. Second gear speed increaser; 700. Guide groove; 701. Guide block; 800. Feed frame; 801. Guide plate. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0031] Example 1 refer to Figures 1-7A bridge construction concrete waste recycling device includes: a recycling pipe 100, a control panel 200 embedded in one side of the recycling pipe 100, a crushing box 300 fixedly installed on the bottom surface of the recycling pipe 100, a screening box 400 fixedly installed on the bottom surface of the crushing box 300, a crushing component 500 for crushing concrete waste on one side of the recycling pipe 100, and a screening component 600 for screening concrete inside the screening box 400. By incorporating the crushing component 500, the kinetic energy generated during the fall of concrete waste within the recycling pipe 100 is utilized to provide electrical energy for the operation of the crushing component 500 and the screening component 600, thereby improving energy efficiency and increasing the environmental friendliness of the device. The crushing component 500 includes a battery 501 embedded in one side of the recycling pipe 100. The storage battery 501 is electrically connected to the control panel 200. Two external holes 502 are opened on the left and right sides of the inside of the crushing box 300. A first bearing 503 is fixedly installed inside the external hole 502. Two crushing rollers 504 are arranged inside the crushing box 300. The connecting end of the crushing roller 504 is fixedly connected to the adjacent first bearing 503. A drive motor 505 is fixedly installed on one side of the crushing box 300. The drive motor 505 is electrically connected to the control panel 200. The output shaft of the drive motor 505 is fixedly connected to the connecting end of the adjacent crushing roller 504. The storage battery 501 is used to provide power to the drive motor 505. Driven by the drive motor 505, the crushing roller 504 rotates and crushes the concrete residue entering the crushing box 300, thereby realizing the crushing treatment of the concrete residue.

[0032] refer to Figures 1-7 The crushing component 500 further includes: Several inner troughs 506 are formed inside one side of the recovery pipe 100. Side holes 507 are formed on the left and right sides of each inner trough 506. One-way bearings 508 are fixedly installed inside the side holes 507. A rotating shaft 509 is fixedly installed between two adjacent one-way bearings 508. A recovery impeller 510 is fixedly installed on the outer wall of the rotating shaft 509. By setting the recovery impeller 510, when concrete residue falls inside the recovery pipe 100, it impacts the recovery impeller 510, causing the recovery impeller 510 to drive the rotating shaft 509 to rotate. Under the action of the one-way bearings 508, unidirectional stable rotation is achieved. The crushing assembly 500 also includes: Several side frames 511 are fixedly installed on one side of the recovery pipe 100. A first gear increaser 512 is fixedly installed inside each side frame 511. A flywheel 513 is fixedly installed inside each side frame 511. A generator 514 is fixedly installed on one side of each side frame 511. A rotating shaft 509 is fixedly connected to the input end of the adjacent first gear increaser 512. The output shaft of the first gear increaser 512 is fixedly connected to the flywheel 513. The shaft of the generator 514 is coaxially fixedly connected to the flywheel 513. The generator 514 is electrically connected to the battery 501. By setting up the generator 514, when… When the rotating shaft 509 rotates under the drive of the recovery impeller 510, its rotation is accelerated through the first gear speed increaser 512, thereby increasing the output speed and driving the flywheel 513 to rotate. During rotation, the flywheel 513 stores some kinetic energy and reduces speed fluctuations, thus making the rotation of the generator 514 more stable. Subsequently, it drives the coaxially connected generator 514 to generate electricity, which is then sent to the battery 501 for storage. This achieves the conversion and utilization of the kinetic energy generated during the fall of concrete residue, improving the energy efficiency of the device. The crushing assembly 500 also includes: Synchronous gears 515 are fixedly sleeved on the outer wall of the connecting end of the crushing roller 504. Two synchronous gears 515 mesh together. A housing 516 is fixedly installed on one side of the crushing roller 504. By setting synchronous gears 515, when the drive motor 505 drives one of the crushing rollers 504 to rotate, the two crushing rollers 504 can achieve synchronous reverse rotation through the mutual meshing of the two synchronous gears 515, thereby squeezing and crushing the concrete residue entering the crushing box 300 and improving the crushing effect of the concrete residue.

[0033] Example 2 refer to Figures 1-7 The screening component 600 includes: An inner frame 601 is located inside the screening box 400. Three screens 602 are fixedly installed inside the inner frame 601, with the aperture size of the three screens 602 gradually increasing from left to right. An inclined hole 603 is opened on one side of the screening box 400, communicating with the interior of the screening box 400. Two baffles 604 are fixedly installed inside the inclined hole 603. By setting up the screens 602, when crushed concrete particles enter the screening box 400, they fall into the inner frame 601 and are screened by the three screens 602 with gradually increasing aperture sizes from left to right, separating concrete particles of different sizes. The particles are then discharged through the inclined hole 603, and the baffles 604 guide the material, thereby achieving the classification and screening of concrete particles, improving the screening effect and material utilization rate of the device. The screening component 600 also includes: Two connecting holes 605 are respectively opened on the left and right sides of the screening box 400. Side shafts 606 are fixedly installed on the left and right sides of the inner frame 601, and the side shafts 606 are sleeved together with the adjacent connecting holes 605. A locking hole 607 is opened on one side of the screening box 400, and a bearing seat 608 is set inside the locking hole 607. The bearing seat 608 is fixedly connected to the inner frame 601. A crank connecting rod mechanism 609 is sleeved inside the bearing seat 608. A second gear speed increaser 610 is fixedly installed inside the housing 516. The input end of 0 is fixedly connected to the connection end of the adjacent crushing roller 504, and the output end of the second gear speed increaser 610 is fixedly connected to the crank connecting rod mechanism 609. By setting the bearing seat 608, when the crushing roller 504 rotates, it is driven by the second gear speed increaser 610 to drive the crank connecting rod mechanism 609 to move, so that the bearing seat 608 moves up and down in the clamping hole 607, thereby driving the inner frame 601 to generate reciprocating vibration through the cooperation of the side shaft 606 and the connection hole 605, so that the material on the screen 602 is constantly turned over, improving the screening efficiency of concrete particles.

[0034] A guide groove 700 is provided on one side of the slot 607, and a guide block 701 is fixedly installed on one side of the bearing housing 608. The guide block 701 is sleeved with the guide groove 700. By setting the guide groove 700, the bearing housing 608 moves up and down in an arc trajectory when driven by the crank connecting rod mechanism 609. The sleeved cooperation between the guide block 701 and the guide groove 700 guides and restricts the movement trajectory of the bearing housing 608, so that the bearing housing 608 can move stably in a predetermined direction, thereby improving the inner frame 60 1. Stability during reciprocating motion: A feed frame 800 is fixedly installed on the top surface of the recovery pipe 100, and a guide plate 801 is fixedly installed on one side of the feed frame 800. By setting the guide plate 801, the residual concrete material can enter the interior of the recovery pipe 100 through the feed frame 800 during use, and the material is guided by the guide plate 801, so that the material can smoothly enter the interior of the device and impact the recovery impeller 510, thereby driving the recovery impeller 510 to rotate, realizing the utilization of the kinetic energy generated during the falling of the material.

[0035] Working principle: Please refer to Figures 1-7As shown, during use, the concrete residue is guided by the guide plate 801 through the feed frame 800, allowing the material to enter the recycling pipe 100 and impact the recycling impeller 510. The recycling impeller 510 drives the rotating shaft 509 to rotate, and under the action of the one-way bearing 508, it achieves stable unidirectional rotation. The rotation of the rotating shaft 509 is accelerated by the first gear speed increaser 512, which drives the flywheel 513 to rotate. The flywheel 513 stores some kinetic energy and reduces speed fluctuations, thereby driving the generator 514 connected to it on the same shaft to generate electricity. The generated electrical energy is then sent to the storage battery 501 for storage, realizing the conversion and utilization of the kinetic energy generated during the falling of the concrete residue. Then the drive motor 505 is started, which drives one of the crushing rollers 504 to rotate. Through the meshing action of the synchronous gear 515, the two crushing rollers 504 rotate synchronously in opposite directions, thereby squeezing and crushing the concrete residue that has entered the crushing box 300. The crushed concrete particles fall into the screening box 400. The second gear speed increaser 610 drives the crank connecting rod mechanism 609 to move, causing the bearing seat 608 to move up and down in the clamping hole 607. This causes the inner frame 601 to vibrate back and forth through the cooperation of the side shaft 606 and the connecting hole 605, so that the material on the screen 602 is constantly turned over, improving the screening efficiency. During the screening process, concrete particles are graded and screened through three screens 602 with gradually increasing apertures from left to right inside the inner frame 601. Materials of different particle sizes fall through the screens 602 and are discharged through the inclined holes 603. Under the guidance of the baffles 604, they are discharged in an orderly manner, thereby completing the crushing and recycling of concrete residue.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that, unless otherwise defined, the technical or scientific terms used in this invention should be understood in the ordinary sense by those skilled in the art to which this invention pertains. Terms such as "comprising" or "including" as used in this invention mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bridge construction concrete surplus material recycling device, characterized by, include: A recycling pipe (100) has a control panel (200) embedded in one side, a crushing box (300) is fixedly installed on the bottom surface of the recycling pipe (100), and a screening box (400) is fixedly installed on the bottom surface of the crushing box (300). A crushing assembly (500) is disposed on one side of the recovery pipe (100) for crushing concrete residue; A screening assembly (600) is disposed inside the screening box (400) for screening concrete.

2. The bridge construction concrete excess material recycling device according to claim 1, characterized in that, The crushing assembly (500) includes: A storage battery (501) is embedded in one side of the recycling pipe (100). The storage battery (501) is electrically connected to the control panel (200). Two external holes (502) are opened on the left and right sides of the inside of the crushing box (300). A first bearing (503) is fixedly installed inside the external hole (502). Two crushing rollers (504) are arranged inside the crushing box (300). The connecting end of the crushing roller (504) is fixedly connected to the adjacent first bearing (503). A drive motor (505) is fixedly installed on one side of the crushing box (300). The drive motor (505) is electrically connected to the control panel (200). The output shaft of the drive motor (505) is fixedly connected to the connecting end of the adjacent crushing roller (504).

3. The bridge construction concrete excess material recycling device according to claim 2, characterized in that, The crushing assembly (500) further includes: Several inner grooves (506) are provided, and each of the inner grooves (506) is opened on one side inside the recycling pipe (100). Side holes (507) are provided on the left and right sides of the inner grooves (506). One-way bearings (508) are fixedly installed inside the side holes (507). A rotating shaft (509) is fixedly installed between two adjacent one-way bearings (508). A recycling impeller (510) is fixedly installed on the outer wall of the rotating shaft (509).

4. The bridge construction concrete excess material recycling device according to claim 3, characterized in that, The crushing assembly (500) further includes: A plurality of side frames (511) are fixedly installed on one side of the recycling pipe (100). A first gear speed increaser (512) is fixedly installed inside the side frame (511). A flywheel (513) is fixedly installed inside the side frame (511). A generator (514) is fixedly installed on one side of the side frame (511). The rotating shaft (509) is fixedly connected to the input end of the adjacent first gear speed increaser (512). The output shaft of the first gear speed increaser (512) is fixedly connected to the flywheel (513). The shaft of the generator (514) is coaxially fixedly connected to the flywheel (513). The generator (514) is electrically connected to the battery (501).

5. The bridge construction concrete excess material recycling device according to claim 4, characterized in that, The crushing assembly (500) further includes: Synchronous gear (515) is fixedly sleeved on the outer wall of the connecting end of the crushing roller (504). Two synchronous gears (515) mesh together. A housing (516) is fixedly installed on one side of the crushing roller (504).

6. The bridge construction concrete excess material recycling device according to claim 5, characterized in that, The screening component (600) includes: An inner frame (601) is disposed inside the screening box (400). Three screens (602) are fixedly installed inside the inner frame (601). The aperture of the three screens (602) gradually increases from left to right. An oblique hole (603) is provided on one side of the screening box (400). The oblique hole (603) is connected to the interior of the screening box (400). Two baffles (604) are fixedly installed inside the oblique hole (603).

7. The bridge construction concrete excess material recycling device according to claim 6, characterized in that, The screening assembly (600) further includes: Two connecting holes (605) are respectively opened on the left and right sides of the screening box (400). Side shafts (606) are fixedly installed on the left and right sides of the inner frame (601). The side shafts (606) are sleeved together with the adjacent connecting holes (605). A locking hole (607) is opened on one side of the screening box (400). A bearing seat (608) is provided inside the locking hole (607). The bearing seat (608) is fixedly connected to the inner frame (601). A crank connecting rod mechanism (609) is sleeved inside the bearing seat (608). A second gear speed increaser (610) is fixedly installed inside the housing (516). The input end of the second gear speed increaser (610) is fixedly connected to the connection end of the adjacent crushing roller (504). The output end of the second gear speed increaser (610) is fixedly connected to the crank connecting rod mechanism (609).

8. A bridge construction concrete waste recycling device according to claim 7, characterized in that, A guide groove (700) is provided on one side of the card hole (607), and a guide block (701) is fixedly installed on one side of the bearing seat (608). The guide block (701) is sleeved together with the guide groove (700).

9. A bridge construction concrete waste recycling device according to claim 1, characterized in that, A feed frame (800) is fixedly installed on the top surface of the recycling pipe (100), and a guide plate (801) is fixedly installed on one side of the feed frame (800).