Device for improving bridge durability

Abstract

The present invention discloses a device for improving the durability of a bridge, which belongs to the technical field of bridge durability research, and comprises a cleaning tube, a driving ring, a moving unit and a recovery unit; a spiral groove is provided on the side wall of the cleaning tube; a clamping block is connected in the spiral groove; the clamping block is connected to the inner side wall of the driving ring; a cleaning brush is connected to the other end of the clamping block; a plurality of driving plates are evenly distributed on the circumferential side wall of the driving ring; the present application can clean chemicals from seawater attached to the outside of the bridge pier through the provision of the cleaning unit, reduce the corrosion of the bridge pier by the chemicals, and improve the durability of the bridge.

Description

Technical Field

[0001] The invention belongs to the technical field of bridge durability research, and particularly relates to a device for improving bridge durability. Background Art

[0002] With the continuous development of the economy, the number of bridge construction is increasing, and the safety of bridges has gradually received the attention of relevant experts and designers. However, bridge collapses also occur from time to time. Usually, this is because the durability of the bridge is insufficient and the bridge collapses due to external factors such as earthquakes, seawater corrosion, and collisions with floating objects.

[0003] Current bridge designs typically use reinforced concrete structures. These structures are exposed to the outside and are subject to long-term wind erosion and seawater scouring. The chemicals in seawater are highly corrosive and destructive to reinforced concrete structures. Existing marine bridge designs typically use external anti-corrosion materials to improve bridge durability, which can only delay corrosion of the reinforced concrete. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a device for improving the durability of bridges to solve the technical problem that external anti-corrosion materials will still corrode reinforced concrete after a period of time.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] The present invention provides a device for improving the durability of bridges, comprising a cleaning tube sleeved on the outside of a bridge pier and a driving ring coaxially arranged outside the cleaning tube; a spiral groove distributed along an axial spiral is opened on the side wall of the cleaning tube; a plurality of clamping blocks are slidably connected in the spiral groove; one end of each clamping block is connected to the inner side wall of the driving ring; the other end of each clamping block is connected to a cleaning brush; a plurality of driving plates are evenly distributed on the circumferential side wall of the driving ring; both ends of the cleaning tube are connected to a moving unit for driving the cleaning tube to move along the bridge pier; a recovery unit for returning the driving ring to an initial position is provided in the spiral groove.

[0007] Furthermore, the cleaning tube is coaxially connected to several arc plates; each arc plate is provided with a corresponding anti-collision plate on the outside; a first shock-absorbing unit is provided between each arc plate and the anti-collision plate; the first shock-absorbing unit includes a square groove opened on the outer wall of the arc plate; a radially arranged fixing rod is hinged in the square groove; the fixing rod is connected to the side wall of the square groove through several first spring dampers; a radially arranged sliding groove is opened on the anti-collision plate; the end of the fixing rod away from the square groove is coaxially connected to the shock-absorbing rod; the shock-absorbing rod is slidably connected to the sliding groove; a second spring damper mounted on the shock-absorbing rod is provided between the anti-collision plate and the fixed rod; a connecting strip corresponding to the arc plate is connected to the movable unit; a buffer groove is opened in the connecting strip; a buffer rod slidably connected in the buffer groove is connected to the arc plate; the buffer rod and the buffer groove are connected by a buffer spring damper.

[0008] Furthermore, a plurality of second shock-absorbing units are provided between adjacent anti-collision plates; each second shock-absorbing unit includes a first hinged tube and a second hinged tube hinged to the side wall of the corresponding anti-collision plate; the first hinged tube and the second hinged tube are both slidably connected with a first sliding rod and a second sliding rod through their respective first tension springs.

[0009] Furthermore, the recovery unit includes a spiral slide rod with the same trajectory as the spiral slide groove; the two ends of the spiral slide rod are respectively connected to the head and tail side walls of the spiral slide groove; a number of blocks are slidably mounted on the spiral slide rod; a second tension spring mounted on the spiral slide rod is connected between the first block near the top of the pier and the spiral slide groove.

[0010] Furthermore, the movable unit includes a movable ring coaxially slidably connected to both ends of the cleaning tube; the outer wall of the movable ring is connected to one end of the corresponding connecting strip; the inner wall of the arc plate is connected to the other end of the corresponding connecting strip; a plurality of arc grooves are opened in a circular array on the movable ring; a pulley driven by a motor is rotatably connected in the arc groove.

[0011] The beneficial effects of the present invention are:

[0012] 1. The setting of the cleaning pipe can withstand the direct impact of large fish schools on the bridge piers, thereby avoiding the vibration of the bridge piers and affecting the durability of the bridge; when the plants pass through the spiral chute with the sea water, the several sliding blocks set in the spiral chute can cooperate with each other. When a part of the plants is stuck in the spiral chute, the sliding blocks can tear the plants, thereby crushing the plants. The crushed plants flow out from the other side of the spiral chute together with the sea water, thereby reducing the contact time between the plants and the bridge piers, and avoiding the plants from adhering to the outside of the bridge piers for a long time and corroding the bridge piers. Along the durability of the bridge, the cleaning brush moving from top to bottom can wash away the chemicals attached to the plants on the outer wall of the bridge pier, thereby reducing the corrosion of the bridge piers by chemicals, thereby improving the durability of the bridge.

[0013] 2. The anti-collision plate can resist impact and buffer the vertical impact force under the action of the second spring damper to avoid direct damage to the bridge piers and improve the durability of the bridge. The setting of the arc plate can provide secondary buffering for the bridge piers. Combined with the buffering of the second spring damper, it can improve the buffering effect, minimize the impact of the impact force on the durability of the bridge piers, and provide bridge durability. At the same time, the impact force causes the anti-collision plate to move along the shock absorber rod, and the shock absorber rod extends the anti-collision plate outward to drive away the fish.

[0014] 3. The anti-collision plate is displaced, thereby increasing the tension and pulling the first hinged tube to move, driving the first tension spring to extend and thus buffering the tension; at the same time, the second sliding rod hinged to the first sliding rod slides in the second hinged tube, driving the first tension spring in the second hinged tube to extend, further buffering the tension, avoiding the impact force being directly transmitted to the bridge pier and causing damage, and improving the durability of the bridge.

[0015] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the purpose, technical solutions and beneficial effects of the present invention more clear, the present invention provides the following drawings for illustration:

[0017] Figure 1 It is a three-dimensional diagram of the present invention;

[0018] Figure 2 For the present invention Figure 1 A longitudinal cross-sectional view of

[0019] Figure 3 A three-dimensional diagram of the cleaning unit of the present invention.

[0020] The markings in the accompanying drawings are as follows: bridge pier 1, cleaning tube 2, drive ring 3, spiral slide 4, block 5, cleaning brush 6, drive plate 7, arc plate 8, anti-collision plate 9, square groove 10, fixed rod 11, first spring damper 12, shock absorbing rod 13, second spring damper 14, connecting strip 15, buffer spring damper 16, first hinged tube 17, second hinged tube 18, ball block 19, spiral slide rod 20, movable ring 21, pulley 22. DETAILED DESCRIPTION

[0021] like Figures 1 to 3As shown, the present invention provides a device for improving the durability of a bridge, comprising a cleaning tube 2 sleeved on the outside of a pier 1 and a driving ring 3 coaxially arranged on the outside of the cleaning tube 2; a gap is formed between the inner wall of the driving ring 3 and the cleaning tube 2; a gap is formed between the inner wall of the cleaning tube 2 and the pier 1; a spiral groove 4 (such as a spiral groove 4) is formed on the side wall of the cleaning tube 2 and is distributed in an axial direction. Figure 3 As shown); the spiral chute 4 passes through the side wall of the cleaning pipe 2; a number of blocks 5 are slidably connected in the spiral chute 4. The device determines whether the device is upside down according to the flow direction of seawater. This embodiment takes the clockwise rotation of the drive ring 3 in a top view as an example for explanation. In the initial state, the block 5 is located at the upper end of the spiral chute 4; the outer end of each block 5 is connected to the inner wall of the drive ring 3; the inner end of each block 5 is connected to a radially arranged cleaning brush 6; the inner end of the cleaning brush 6 is in contact with the outer wall of the pier 1; a number of driving plates 7 are evenly distributed on the circumferential side wall of the drive ring 3; the upper and lower ends of the cleaning pipe 2 are connected to a moving unit for driving the cleaning pipe 2 to move along the pier 1; a recovery unit for returning the drive ring 3 to its initial position is provided in the spiral chute 4.

[0022] The principle and effect of the above technical solution:

[0023] The cleaning pipe 2 is adjusted to a certain height of the pier 1 through the mobile unit. The flow of seawater acts on the drive plate 7, thereby driving the drive ring 3 to rotate, causing the block 5 to slide from top to bottom along the spiral slide 4, so that the cleaning brush 6 at the inner end of the block 5 cleans the chemicals from the seawater attached to the outer wall of the pier 1; the existing technology uses external anti-corrosion materials. Even if the degree of adhesion is very good, seawater can gradually invade from the bottom side of the external anti-corrosion materials. After a period of time, the concentrated salt and alkali and other chemicals contained in the seawater will still corrode the reinforced concrete.

[0024] The setting of the cleaning pipe 2 can withstand large fish schools directly hitting the bridge pier 1, thereby preventing the bridge pier 1 from vibrating and affecting the durability of the bridge pier 1, and improving the durability of the bridge; when the plants pass through the spiral chute 4 with seawater, the several blocks 5 slidingly set in the spiral chute 4 can cooperate with each other. When a part of the plants is stuck in the spiral chute 4, the sliding blocks 5 can tear the plants, thereby crushing the plants. The crushed plants flow out from the other side of the spiral chute 4 together with the seawater, thereby reducing the contact time between the plants and the bridge pier 1, and preventing the plants from adhering to the outside of the bridge pier 1 for a long time and corroding the bridge pier 1. Along with the durability of the bridge, even if a small amount of plants are attached to the outer wall of the bridge pier 1, the seawater drives the driving plate 7 to rotate, causing the block 5 to slide from top to bottom along the spiral chute 4, and the cleaning brush 6 washes the chemical substances attached to the plants on the outer wall of the bridge pier 1 from top to bottom along the spiral chute 4, thereby reducing the corrosion of the bridge pier 1 by the chemical substances, thereby improving the durability of the bridge.

[0025] In this embodiment, four arc plates 8 are coaxially connected to the outside of the cleaning tube 2; there is a gap between adjacent arc plates 8; there is a gap between the arc plate 8 and the cleaning tube 2; the outer side of each arc plate 8 is provided with a corresponding anti-collision plate 9; the cross-sectional shape of the anti-collision plate 9 is the same as that of the arc plate 8, both of which are arc-shaped; there is a gap between adjacent anti-collision plates 9; there is a gap between each arc plate 8 and the anti-collision plate 9; a first shock-absorbing unit is provided at the gap; the first shock-absorbing unit includes a square groove 10 opened on the outer wall of the arc plate 8; a radially arranged fixing rod 11 is hinged on the side wall of the square groove 10 close to the cleaning tube 2; the fixing rod 11 is connected to the upper side wall, lower side wall, front side wall and rear side wall of the square groove 10 through four first spring dampers 12 Wall connection; a sliding groove is radially opened on the anti-collision plate 9; a shock-absorbing rod 13 is coaxially connected to the end of the fixed rod 11 away from the square groove 10; the diameter of the shock-absorbing rod 13 is smaller than the fixed rod 11, and the length of the shock-absorbing rod 13 is longer than the fixed rod 11; the shock-absorbing rod 13 is slidably connected to the sliding groove; a second spring damper 14 is connected between the anti-collision plate 9 and the fixed rod 11 and is sleeved on the shock-absorbing rod 13; four connecting strips 15 corresponding to the four arc-shaped plates 8 are radially connected to the upper and lower moving units; a buffer groove is radially opened in the connecting strip 15; a buffer rod slidably connected to the buffer groove is provided on the arc-shaped plate 8; the buffer rod and the side wall of the buffer groove near the end of the pier 1 are connected through a buffer spring damper 16.

[0026] The principle and effect of the above technical solution:

[0027] When hit by a large school of fish or a small ship, the impact force acts vertically on the anti-collision plate 9, and the anti-collision plate 9 can resist the impact. When the impact force is large, under the action of the second spring damper 14, the anti-collision plate 9 slides inward along the direction of the shock-absorbing rod 13, thereby buffering the vertical impact force, avoiding direct damage to the bridge pier 1, and improving the durability of the bridge. The setting of the curved plate 8 can provide secondary buffering for the bridge pier 1. When the impact force is too large, the impact force is indirectly transmitted to the curved plate 8. The buffer rod on the curved plate 8 slides in the buffer groove under the action of the buffer spring damper 16, thereby realizing secondary buffering. Combined with the buffering of the second spring damper 14, it can improve the buffering effect and minimize the impact. The impact of the impact force on the durability of the bridge pier 1 provides bridge durability; at the same time, the impact force causes the anti-collision plate 9 to move along the shock-absorbing rod 13, and the shock-absorbing rod 13 extends the anti-collision plate 9 outward, which can drive away the fish; when the direction of the impact force is non-vertical, it drives the fixed rod 11 hinged on the curved plate 8 to rotate, and the first spring dampers 12 around the fixed rod 11 cooperate with each other to resist the rotation of the fixed rod 11, thereby buffering the impact force and preventing the impact force from being directly transmitted to the bridge pier 1, thereby improving the durability of the bridge; there are gaps between adjacent curved plates 8 to allow seawater to pass smoothly, thereby providing power to the drive ring 3; at the same time, the setting of the gap can prevent large fish from passing through the gap and interfering with the normal operation of the cleaning brush 6.

[0028] In this embodiment, a number of second shock-absorbing units are provided between adjacent anti-collision plates 9; each second shock-absorbing unit includes a first hinged tube 17 and a second hinged tube 18 hinged to the adjacent side walls of the corresponding anti-collision plate 9; the first hinged tube 17 and the second hinged tube 18 are slidably connected with a first slide rod and a second slide rod through respective first tension springs (not shown in the figure); the outer end of the second slide rod is connected to a ball block 19, and the first slide rod is hinged to the ball block 19.

[0029] The principle and effect of the above technical solution:

[0030] like Figure 1 As shown, when a floating object with little impact force hits the anti-collision plate 9 on the left, the anti-collision plate 9 is displaced, thereby increasing the tension and pulling the first hinged tube 17 to move, driving the first tension spring to extend and thus buffering the tension; at the same time, the second sliding rod hinged to the first sliding rod slides in the second hinged tube 18, driving the first tension spring in the second hinged tube 18 to extend, further buffering the tension, avoiding the impact force from being directly transmitted to the pier 1 and causing damage, and improving the durability of the bridge.

[0031] In this embodiment, Figure 3 As shown, the recovery unit includes a spiral slide rod 20 with the same trajectory as the spiral slide groove 4; the upper and lower ends of the spiral slide rod 20 are respectively connected to the head and tail side walls of the spiral slide groove 4; a number of blocks 5 are slidably mounted on the spiral slide rod 20; a second tension spring (not shown in the figure) mounted on the spiral slide rod 20 is connected between the first block 5 near the top of the pier 1 and the spiral slide groove 4.

[0032] The principle and effect of the above technical solution:

[0033] When the water flow rate is high, the power provided by seawater is greater than the tension of the second tension spring, thereby driving the driving ring 3 to rotate, so that the block 5 slides downward along the spiral chute 4, and the cleaning brush 6 cleans the chemicals on the bridge pier 1 from top to bottom. At this time, the second tension spring is in a stretched state; when the water flow rate decreases, the stretched second tension spring lacks the restriction of the power provided by seawater, thereby driving the connected block 5 to slide upward along the spiral chute 4, and cleans the chemicals on the bridge pier 1 again, improving the cleaning degree. The setting of the recovery unit can cooperate with the water flow rate. When the water flow rate is high, it drives the driving ring 3 to rotate, so that the cleaning brush 6 at the inner end of the block 5 cleans the chemicals on the outer wall of the bridge pier 1 from top to bottom along the trajectory direction of the spiral chute 4; when the water flow rate is low, the recovery unit drives the cleaning brush 6 to clean the chemicals on the outer wall of the bridge pier 1 from bottom to top along the trajectory direction of the spiral chute 4, improving the cleaning degree and improving the durability of the bridge.

[0034] In this embodiment, the moving unit includes a moving ring 21 that is coaxially slidably connected to the upper and lower ends of the cleaning tube 2; the outer wall of the moving ring 21 is connected to the inner end of the corresponding connecting strip 15; the inner wall of the arc plate 8 is connected to the outer end of the corresponding connecting strip 15; a plurality of arc grooves are opened in a circular array on the moving ring 21; a pulley 22 driven by a motor is rotatably connected in the arc groove; the pulley 22 is in contact with the outer wall of the pier 1.

[0035] The principle and effect of the above technical solution:

[0036] When the tide recedes, the length of the pier 1 exposed above the water becomes longer, and the motor can drive the pulley 22 to rotate, thereby moving the entire device to the required position. The sea breeze passes through the gaps between adjacent anti-collision plates 9 and the gaps between adjacent curved plates 8. The gaps reduce the space for the sea breeze to pass through, compress the volume of the sea breeze, and increase the wind speed of the sea breeze, thereby acting on the drive plate 7 to rotate the drive ring 3, thereby replacing seawater to provide power to the drive ring 3, and can also clean the chemical substances attached to the outside of the pier 1, thereby improving the durability of the bridge.

[0037] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A device for improving the durability of a bridge, characterized by: The invention comprises a cleaning tube sleeved outside the bridge pier and a driving ring coaxially arranged outside the cleaning tube; a spiral groove distributed along the axial spiral is opened on the side wall of the cleaning tube; a plurality of blocks are slidably connected in the spiral groove; one end of each block is connected to the inner wall of the driving ring; the other end of each block is connected to a cleaning brush; a plurality of driving plates are evenly distributed on the circumferential side wall of the driving ring; both ends of the cleaning tube are connected to a moving unit for driving the cleaning tube to move along the bridge pier; a recovery unit for returning the driving ring to its initial position is provided in the spiral groove; a plurality of arc plates are coaxially connected to the outside of the cleaning tube; the outer side of each arc plate Each of the arc plates is provided with a corresponding anti-collision plate; a first shock-absorbing unit is provided between each arc plate and the anti-collision plate; the first shock-absorbing unit includes a square groove provided on the outer wall of the arc plate; a radially arranged fixing rod is hinged in the square groove; the fixing rod is connected to the side wall of the square groove through a plurality of first spring dampers; a radially arranged sliding groove is provided on the anti-collision plate; the end of the fixing rod away from the square groove is coaxially connected to the shock-absorbing rod; the shock-absorbing rod is slidably connected to the sliding groove; a second spring damper sleeved on the shock-absorbing rod is provided between the anti-collision plate and the fixing rod; a connecting strip corresponding to the arc plate is connected to the movable unit; a buffer groove is provided in the connecting strip; The arc plate is connected with a buffer rod which is slidably connected in the buffer groove; the buffer rod and the buffer groove are connected via a buffer spring damper.

2. The device for improving bridge durability according to claim 1, characterized in that: A number of second shock-absorbing units are provided between adjacent anti-collision plates; each second shock-absorbing unit includes a first hinged tube and a second hinged tube hinged to the corresponding anti-collision plate side wall; the first hinged tube and the second hinged tube are both slidably connected with a first sliding rod and a second sliding rod through their respective first tension springs.

3. The device for improving bridge durability according to claim 2, characterized in that: The recovery unit includes a spiral slide rod with the same trajectory as the spiral slide groove; the two ends of the spiral slide rod are respectively connected to the head and tail side walls of the spiral slide groove; a number of blocks are slidably mounted on the spiral slide rod; a second tension spring mounted on the spiral slide rod is connected between the first block near the top of the pier and the spiral slide groove.

4. The device for improving bridge durability according to claim 3, characterized in that: The movable unit includes a movable ring coaxially slidably connected to both ends of the cleaning tube; the outer wall of the movable ring is connected to one end of the corresponding connecting strip; the inner wall of the arc plate is connected to the other end of the corresponding connecting strip; a plurality of arc grooves are opened in a circular array on the movable ring; a pulley driven by a motor is rotatably connected in the arc groove.

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