Search

CN-121776172-B - Cleaning device is washed to view bridge steel construction pulse

CN121776172BCN 121776172 BCN121776172 BCN 121776172BCN-121776172-B

Abstract

The invention relates to the field of bridge maintenance and discloses a pulse flushing and cleaning device for a steel structure of a landscape bridge. The supporting seat is fixedly connected with the main flow pipe, the pushing component is arranged in the main flow pipe in a sliding manner, the driving component is arranged on the supporting seat and used for driving the pushing component to move so as to compress the reset component to store potential energy, the reset component releases the potential energy to drive the pushing component to reset rapidly and extrude liquid in the main flow pipe to generate pulse water flow, and the cleaning component is arranged at two ends of the main flow pipe and used for switching a fluid discharge path and opening a cleaning port. The invention improves the stripping efficiency of rusting matters on the surface of the steel structure by utilizing pulse jet flow, realizes self-cleaning of an internal pipeline by the cleaning component, avoids mixed corrosion of medicaments, can suck and recover gap ponding by utilizing negative pressure generated by the pushing component, prevents secondary corrosion, and solves the problem of secondary corrosion caused by residual ponding easily after the surface of the complex steel structure is cleaned.

Inventors

  • FENG JUN
  • LI QI
  • ZOU YI
  • ZHANG SHIQIANG
  • TIAN YANG

Assignees

  • 中交园林(山东)有限公司

Dates

Publication Date
20260508
Application Date
20260306

Claims (10)

  1. 1. The pulse flushing and cleaning device for the steel structure of the landscape bridge is characterized by comprising a supporting seat (1), a main flow pipe (2), a plug flow component (3), a driving component (4), a resetting component (5), a liquid inlet pipe (6) and a cleaning component (7); the upper end of the supporting seat (1) is fixedly connected with the main flow pipe (2), and the main flow pipe (2) is of a hollow tubular structure with left and right ends open; The plug flow component (3) is arranged in the main flow pipe (2) in a sliding manner and is used for pushing liquid in the main flow pipe (2) to flow; the driving component (4) is arranged on the supporting seat (1) and is used for driving the plug flow component (3) to axially move along the main flow pipe (2) so as to accumulate potential energy; The reset component (5) is arranged on the outer wall of the main flow pipe (2) and connected with the plug flow component (3) and is used for driving the plug flow component (3) to quickly reset to generate pulse water flow when the drive component (4) releases the plug flow component (3); The liquid inlet pipe (6) is communicated with the outer wall of the main flow pipe (2); the cleaning components (7) are arranged at openings at the left end and the right end of the main flow pipe (2) and are used for switching the fluid discharging paths and cleaning the inside of the main flow pipe (2).
  2. 2. The pulse flushing and cleaning device for the steel structure of the landscape bridge, as set forth in claim 1, is characterized in that a chute (36) is arranged on the outer wall of the main flow pipe (2); the plug flow assembly (3) comprises a piston block (33), a sliding block (32), a baffle plate (37) and a sliding frame (31); The piston block (33) is connected to the inner wall of the main flow pipe (2) in a sliding manner; the sliding block (32) is fixedly connected to the outer wall of the piston block (33), and the sliding block (32) is arranged in the sliding groove (36) in a sliding manner; The baffle plate (37) is fixedly connected to the outer wall of the sliding block (32), and the baffle plate (37) is attached to the outer wall of the main flow pipe (2) so as to seal the sliding groove (36); The sliding frame (31) is fixedly connected to the outer wall of the baffle plate (37), and the sliding frame (31) is sleeved on the outer wall of the main flow pipe (2) in a sliding mode.
  3. 3. The pulse flushing and cleaning device for the steel structure of the landscape bridge is characterized in that the piston block (33) is arranged in a ring shape, the center of the piston block can be used for liquid to pass through, and the piston block (33) divides the space of the inner wall of the main flow pipe (2) into a left drainage cavity and a right water storage cavity; the inner wall of the main flow pipe (2) is provided with one-way valves (8) and the number of the one-way valves is three, and the three one-way valves (8) are configured to only allow water flow to flow leftwards in one direction; One group of one-way valves (8) are arranged on the inner wall of the liquid inlet pipe (6), one group of one-way valves (8) are arranged at the central hollow position of the piston block (33), and the last group of one-way valves (8) are arranged at the opening of the left end of the main flow pipe (2).
  4. 4. The pulse flushing and cleaning device for the steel structure of the landscape bridge, as set forth in claim 3, is characterized in that two groups of drainage sleeves (34) are symmetrically and fixedly connected to the left end and the right end of the piston block (33), and the drainage sleeves (34) are arranged in a hollow frustum shape and have smaller openings near one end of the piston block (33); the inner wall of the main flow pipe (2) is fixedly connected with two groups of limiting rings (35), and the limiting rings (35) are used for limiting the displacement limit distance of the piston block (33) by blocking the drainage sleeve (34).
  5. 5. The pulse cleaning device for the steel structure of the landscape bridge according to claim 2, wherein the driving assembly (4) comprises a driving motor (41), a cam (42) and a lug (43); the driving motor (41) is arranged on the upper surface of the supporting seat (1), and the output shaft of the driving motor is not intersected with the central axis of the main flow pipe (2); the cam (42) is fixedly connected to an output shaft of the driving motor (41); the convex block (43) is fixedly connected to the upper surface of the cam (42) at a position far away from the center point; When the driving motor (41) rotates, the protruding block (43) can periodically press and push the sliding frame (31) to move.
  6. 6. The pulse flushing and cleaning device for the steel structure of the landscape bridge according to claim 2, wherein the reset assembly (5) comprises a sliding rod (51), a reset spring (53) and an air spring (52); The sliding rod (51) is fixedly arranged on the outer wall of the main flow pipe (2), and the sliding frame (31) is connected to the outer wall of the sliding rod (51) in a sliding manner; the reset spring (53) is sleeved on the sliding rod (51), and two ends of the reset spring (53) are respectively abutted to the outer wall structure of the main flow pipe (2) and the sliding frame (31); The air spring (52) is fixedly connected to the outer wall of the main flow pipe (2) and is positioned at the end position of the reset stroke of the sliding frame (31).
  7. 7. The pulse flushing and cleaning device for the steel structure of the landscape bridge according to claim 1, wherein the cleaning assembly (7) comprises a liquid discharge pipe (71), a second adjusting sleeve (77) and an adjusting rod (75); the liquid discharge pipe (71) is fixedly connected to the left end of the main flow pipe (2), and two groups of liquid discharge ports (72) are sequentially formed in the outer wall of the liquid discharge pipe (71) from top to bottom; The second adjusting sleeve (77) is rotatably connected to the inner wall of the liquid discharge pipe (71), and a communication hole (76) is formed in the outer wall of the second adjusting sleeve (77) in a penetrating manner; The adjusting rod (75) penetrates through and is connected to the outer wall of the liquid discharge pipe (71) in a sliding mode, and one end of the adjusting rod (75) is fixedly connected with the second adjusting sleeve (77); Through rotating the adjusting rod (75), the second adjusting sleeve (77) can be driven to rotate, and the communication holes (76) are alternately communicated with the two groups of liquid discharge ports (72).
  8. 8. The pulse cleaning device for the steel structure of the landscape bridge according to claim 7, wherein the cleaning assembly (7) further comprises a cleaning port (73), a first adjusting sleeve (74), a first sealing block (78) and a second sealing block (79); The cleaning opening (73) is arranged at the right end of the main flow pipe (2), and the first adjusting sleeve (74) is rotatably connected to the inner wall of the cleaning opening (73); one end of the adjusting rod (75) far away from the second adjusting sleeve (77) penetrates through the outer wall of the cleaning opening (73) and is fixedly connected with the first adjusting sleeve (74); The left end fixedly connected with of adjustment sleeve one (74) seals piece one (78), the inner wall fixedly connected with of clearance mouth (73) seals piece two (79), seal piece one (78) with seal piece two (79) are semicircle plate structure, and both cooperations can form complete plectane in order to shutoff the inner chamber of clearance mouth (73).
  9. 9. The pulse cleaning device for steel structures of landscape bridges according to claim 7, wherein the cleaning assembly (7) further comprises a supporting ring (710), a connecting rod (711) and a locking screw (713); the support ring (710) is rotatably connected to the outer wall of the main flow pipe (2); The two ends of the connecting rod (711) are respectively and fixedly connected with the supporting ring (710) and the adjusting rod (75); the outer wall of the supporting ring (710) is fixedly connected with a threaded sleeve (712), and the locking screw (713) penetrates through and is in threaded connection with the inner wall of the threaded sleeve (712) and can be abutted against the outer wall of the main flow pipe (2).
  10. 10. The pulse cleaning device for the steel structure of the landscape bridge of claim 7, further comprising a flushing pipeline, a metal universal pipe and a flushing head; One end of the flushing pipeline is used for being connected with external water supply equipment, and the other end of the flushing pipeline is connected with the liquid inlet pipe (6); One end of the metal universal pipe is connected with a group of liquid draining ports (72) above the cleaning component (7), and the other end of the metal universal pipe is connected with the flushing head.

Description

Cleaning device is washed to view bridge steel construction pulse Technical Field The invention relates to the field of bridge maintenance, in particular to a pulse flushing and cleaning device for a steel structure of a landscape bridge. Background The landscape bridge is used as an important carrier for urban traffic and landscapes, and the steel structure of the landscape bridge is exposed to natural environment for a long time, so that dust, greasy dirt, bird droppings and an oxidation corrosion layer are extremely easy to accumulate on the surface of the landscape bridge. In order to keep the bridge structure safe and clean in appearance, the bridge must be cleaned and maintained at regular intervals. Currently, there have been some attempts in the art to automate the cleaning of bridge anti-collision walls or steel structures. For example, chinese patent No. CN 113250127B discloses a large city bridge anti-collision wall flushing and sludge and sewage collection integrated device. According to the scheme, the anti-collision wall is enclosed by the baffle mechanism, the pressure water storage tank is connected with the spray pipe for flushing, the transverse plate and the collecting pipe are arranged at the bottom, and falling building slag and sewage are recovered in a gravity bearing mode. The technical scheme solves the problem that the sewage splashes to pollute the environment caused by open flushing to a certain extent. However, in practical applications, the above prior art still has the following significant drawbacks: The patent adopts a mode of directly supplying water by a pressure water storage tank, and essentially belongs to constant-pressure continuous spraying. For old rust or stubborn scale with extremely strong adhesion on the surface of a steel structure, the stable water flow lacking instantaneous explosive force is difficult to thoroughly strip, so that the rust removal cleaning efficiency is low. In order to improve the cleaning effect, a pump station with extremely high pressure is usually required to support, which increases the energy consumption and the volume of the equipment obviously, and the sewage recovery mechanism in the patent relies on the gravity bearing principle, namely only sewage naturally dropping under the action of gravity can be collected. However, the design of the steel structure nodes of the landscape bridge is often extremely complex, and a large number of stiffening rib grooves, non-closed gaps and structural dead angles exist. After the cleaning operation, sewage and chemical waste liquid are easily accumulated in the deep parts of the low-lying gaps, and cannot be naturally discharged by means of gravity. The existing equipment lacks an active negative pressure suction function, cannot pump out the deep effusion, leads the effusion to stay for a long time, forms a concentrated battery effect, accelerates secondary corrosion of steel structure nodes, and generally relates to a plurality of procedures of rust removal, cleaning, passivation and the like, and needs to switch and use chemical agents with different properties such as acidity or alkalinity. The pipeline design in the prior art mainly considers unidirectional output and lacks a self-cleaning mechanism for the pipeline and the valve body inside the equipment. When the medicines are switched, the medicines (such as strong acid) in the last working procedure remained in dead angles of the pump body or the pipeline are easy to react with the newly injected medicines, or seal elements in the equipment are corroded for a long time, so that the failure rate and the maintenance difficulty of the equipment are increased. Disclosure of Invention In order to make up for the defects, the invention provides a pulse flushing and cleaning device for a steel structure of a landscape bridge, which aims to solve the problems that in the prior art, the effect of stripping rust matters by constant-pressure water supply in bridge steel structure cleaning is poor, the internal pipelines of equipment are difficult to clean and maintain, and the accumulated water in a narrow gap is difficult to recover. A cleaning device is washed to view bridge steel construction pulse, includes supporting seat, mainstream pipe, plug flow subassembly, drive assembly, reset assembly, feed liquor pipe and cleaning element. The upper end of the supporting seat is fixedly connected with a main flow pipe, and the main flow pipe is of a hollow tubular structure with openings at the left end and the right end. The plug flow component is arranged in the main flow pipe in a sliding way and is used for pushing liquid in the main flow pipe to flow. The driving component is arranged on the supporting seat and used for driving the plug flow component to axially move along the main flow pipe so as to compress the reset component to accumulate potential energy. The reset component is arranged on the outer wall of the main flow pipe and connected w