Self-cleaning bridge expansion joint structure

Abstract

The present invention relates to a self-cleaning bridge expansion joint structure, which includes a bridge body and an expansion joint opened on the bridge body. A push plate is arranged in the expansion joint. A storage cavity communicated with the expansion joint is opened at a position of the bridge body below the expansion joint. A material pushing mechanism is further arranged in the bridge body and used for pushing the push plate to reciprocate in the expansion joint so as to push the garbage in the expansion joint into the storage cavity. The material pushing mechanism includes a plurality of water storage tanks arranged below the expansion joint and along the length direction thereof. The storage cavity is communicated with the water storage tank at the outermost end. An inverted U-shaped communication pipe is connected between two adjacent water storage tanks. The material pushing mechanism further includes a floating ball arranged in the water storage tank closest to the storage cavity. The cross section of the floating ball is equal to the cross section of the communication pipe. A pull wire is arranged on the floating ball. The pull wire first penetrates into the storage cavity, then passes through the storage cavity and is arranged on the push plate. This application has the advantage of improving the expansion effect of the bridge road surface.

Description

Technical Field

[0001] The invention relates to the technical field of expansion joints, and in particular to a self-cleaning bridge expansion joint structure. Background Art

[0002] An expansion joint refers to a structural joint set up at an appropriate position along the direction of the construction joint of a building because the structure of an engineering building may crack or be damaged due to changes in climate and temperature.

[0003] The related art discloses a bridge expansion joint structure, which includes an expansion joint with an open top and a drainage pipe pre-buried at the bottom of the expansion joint for drainage.

[0004] During the passage of vehicles, garbage may be brought into the expansion joints, and the accumulation of garbage in the expansion joints may hinder the expansion and contraction of the bridge pavement, which is an obvious shortcoming. Summary of the invention

[0005] In order to improve the problem that garbage accumulates in expansion joints and may affect the expansion and contraction deformation of bridge pavement, the present application provides a self-cleaning bridge expansion joint structure.

[0006] The self-cleaning bridge expansion joint structure provided in this application adopts the following technical solution:

[0007] A self-cleaning bridge expansion joint structure includes a bridge body and an expansion joint opened on the bridge body, a push plate is provided in the expansion joint, a storage cavity communicated with the expansion joint is opened in the bridge body relative to a position below the expansion joint, and a pushing mechanism is also provided in the bridge body for pushing the push plate to slide back and forth in the expansion joint, thereby pushing garbage in the expansion joint into the storage cavity.

[0008] By adopting the above technical solution, under the action of the pushing mechanism, the push plate slides back and forth in the expansion joint, so that the garbage in the expansion joint can be pushed into the storage cavity, thereby reducing the possibility of garbage accumulation in the expansion groove, thereby hindering the expansion and contraction of the bridge pavement.

[0009] Optionally, the pushing mechanism includes a plurality of water tanks located below the expansion joint and arranged along its length, the storage cavity is communicated with the water tank at the endmost end, and an inverted U-shaped connecting pipe is connected between two adjacent water tanks; the pushing mechanism also includes a float located in the water tank closest to the storage cavity, the cross-section of the float is equal to the cross-section of the connecting pipe, a pull wire is provided on the float, the pull wire first passes through the storage cavity, then passes through the storage cavity and is arranged on the push plate, and the pushing mechanism also includes a reset component for driving the push plate away from the storage cavity to achieve reset.

[0010] By adopting the above technical solution, during rainfall, rainwater flows into the storage cavity through the expansion joint, and the rainwater in the storage cavity flows into each water storage tank along the length direction of the expansion joint through each communication pipe in sequence. When the rainwater flows into the water storage tank, the floating ball floats upward and is transferred through the communication pipe in the direction away from the storage cavity to a water storage tank farther from the storage cavity. During this process, the floating ball pulls the push plate to move towards the storage cavity through the pull wire, so that the push plate can push the garbage into the storage cavity. After that, the reset component pulls the push plate to reset.

[0011] Optionally, one end of the communication pipe extending into the water storage tank is close to the bottom of the water storage tank.

[0012] By adopting the above technical solution, this is beneficial to improving the smoothness of the transfer of the floating ball between each water storage tank.

[0013] Optionally, a plurality of water leakage holes for draining water are opened at the bottom of the storage cavity, a drainage through hole is opened at a position of the bridge body corresponding to the lower part of the plurality of water storage tanks, the drainage through hole is communicated with the bottom of each water storage tank, and a drainage valve is arranged at the communicating part. A liquid level sensor is arranged at a position close to the bottom of the storage cavity, and both the drainage valve and the liquid level sensor are electrically connected to the control system.

[0014] By adopting the above technical solution, when the rainfall stops, the remaining rainwater in the storage cavity is discharged through the water leakage holes. When the water level of the rainwater in the storage cavity is lower than the liquid level sensor, the control system opens the drainage valve, and the rainwater in the water storage tank and the communication pipe is discharged through the drainage valve and the drainage through hole, making room in advance for the next intake of rainwater.

[0015] Optionally, the reset component includes a first wire winding rod rotatably arranged at the other end of the expansion joint relative to the storage cavity. A reset rope is wound around the first wire winding rod. An impeller is also rotatably arranged in the drainage through hole, and a wire winding disc is arranged on the rotating shaft of the impeller. One end of the reset rope is arranged on the push plate, and the other end is wound around the wire winding disc.

[0016] By adopting the above technical solution, when the floating ball pulls the push plate to push out the garbage, the reset rope on the first wire winding rod is pulled out by the push plate. When the rainwater is discharged through the drainage through hole, the rainwater impacts the impeller, and the impeller drives the wire winding wheel to rotate, thereby winding up the reset rope. The reset rope pulls the push plate to reset. At the same time, the floating ball is also pulled back to the water storage tank closest to the storage cavity by the pull wire.

[0017] Optionally, the drainage through hole is arranged to incline downward along its axis.

[0018] By adopting the above technical solution, when rainwater is discharged from the drainage through-hole, it is accelerated under the action of gravity, thereby increasing the impact strength on the impeller, which is beneficial to improving the reset effect of the reset component on the push plate.

[0019] Optionally, the push plate includes two single plates. A sliding groove is formed on one of the single plates, and a sliding block sliding in the sliding groove is provided on the other single plate. The cross-sections of the sliding groove and the sliding block are both in the shape of a dovetail, and a compression spring is propped between the end of the sliding block and the sliding groove.

[0020] By adopting the above technical solution, the sliding block and the sliding groove are in sliding fit, and the width of the push plate can change with the change of the width of the expansion joint. The setting of the compression spring makes the push plate always abut against the side wall of the expansion joint.

[0021] Optionally, polytetrafluoroethylene is coated on both of the two single plates.

[0022] By adopting the above technical solution, polytetrafluoroethylene plays a role in protecting the single plate, reducing the possibility of the push plate being damaged by the external environment.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. Under the action of the material pushing mechanism, the push plate reciprocally slides in the expansion joint, thereby being able to push the garbage in the expansion joint into the storage cavity, reducing the possibility of garbage accumulating in the expansion slot and thus hindering the expansion of the bridge road surface.

[0025] 2. During rainfall, rainwater flows into the storage cavity through the expansion joint, and the rainwater in the storage cavity flows into each water storage tank along the length direction of the expansion joint through each communication pipe in sequence. When the rainwater flows into the water storage tank, the floating ball floats up and transfers to a water storage tank farther from the storage cavity along the direction away from the storage cavity through the communication pipe. During this process, the floating ball pulls the push plate to move towards the direction close to the storage cavity through the pull wire, thereby the push plate realizes pushing the garbage into the storage cavity.

[0026] 3. When the floating ball pulls the push plate to push out the garbage, the reset rope on the first wire winding rod is pulled out by the push plate. When the rainwater is discharged through the drainage through-hole, the rainwater impacts the impeller, the impeller drives the wire winding wheel to rotate, thereby realizing the winding of the reset rope, the reset rope pulls the push plate to be reset, and at the same time, the floating ball is also pulled back to the water storage tank closest to the storage cavity by the pull wire. Description of the Drawings

[0027] Figure 1 is a cross-sectional view of an embodiment of the present application.

[0028] Figure 2 is an exploded view of the sliding fit between two single plates in an embodiment of the present application.

[0029] Description of reference numerals: 1, bridge body; 2, expansion joint; 3, storage cavity; 4, water storage tank; 5, connecting pipe; 6, floating ball; 7, stay wire; 8, water leakage hole; 9, drainage through hole; 10, drain valve; 11, liquid level sensor; 12, first wire winding rod; 13, reset rope; 14, impeller; 15, wire winding disc; 16, single plate; 17, sliding groove; 18, slider; 19, compression spring. Specific implementation mode

[0030] The following further elaborates on this application Figure 1-2 in detail with reference to the accompanying drawings.

[0031] The embodiment of this application discloses a self-cleaning bridge expansion joint structure.

[0032] Referring to Figure 1 , the self-cleaning bridge expansion joint structure includes a bridge body 1 and an expansion joint 2 opened on the bridge body 1. A push plate is arranged in the expansion joint 2, and a storage cavity 3 communicated with it is opened at a position below one end of the bridge body 1 relative to the expansion joint 2. A pushing mechanism is further arranged in the bridge body 1 for pushing the push plate to slide back and forth in the expansion joint 2, so as to push the garbage in the expansion joint 2 into the storage cavity 3.

[0033] One side of the bridge body 1 opposite to the storage cavity 3 is open and bolted with a cover. When there is more garbage accumulated in the storage cavity 3, the worker removes the cover and clears the garbage in the storage cavity 3.

[0034] Referring to Figure 1 and Figure 2 , the push plate includes two single plates 16. A sliding groove 17 is opened on one of the single plates 16, and a slider 18 integrally formed on the other single plate 16 slides in the sliding groove 17. The cross sections of the sliding groove 17 and the slider 18 are both in the shape of a dovetail, and a compression spring 19 is propped between the ends of the slider 18 and the sliding groove 17.

[0035] When the bridge road surface expands and contracts, the distance between the opposite sides in the length direction of the expansion joint 2 changes relatively. The sliding fit between the slider 18 and the sliding groove 17 causes the width of the push plate to change accordingly, and the compression spring 19 enables the push plate to keep close to each side wall of the expansion joint 2.

[0036] Since the top of the expansion joint 2 is open, the push plate is always exposed to the air. Therefore, polytetrafluoroethylene is coated on both single plates 16. Polytetrafluoroethylene can protect the single plates 16 and reduce the possibility of the push plate being corroded.

[0037] Referring to Figure 1 and Figure 2, the material pushing mechanism includes a plurality of water storage tanks 4 located below the expansion joint 2 and arranged along its length direction. The storage cavity 3 communicates with the water storage tank 4 at the outermost end. A U-shaped connecting pipe 5 is provided between two adjacent water storage tanks 4. One end of the connecting pipe 5 communicates with the top of one water storage tank 4, and the other end penetrates into the top of the adjacent water storage tank 4 and is close to the bottom of this water storage tank 4.

[0038] Refer to Figure 1 and Figure 2 , the material pushing mechanism further includes a floating ball 6 located in the water storage tank 4 closest to the storage cavity 3. The cross-section of the floating ball 6 is equal to the cross-section of the connecting pipe 5. A pull wire 7 is tied to the floating ball 6. The pull wire 7 first penetrates into the storage cavity 3, then passes through the storage cavity 3 and is tied to the push plate. In addition, the material pushing mechanism further includes a reset assembly for driving the push plate away from the storage cavity 3 to achieve reset.

[0039] Refer to Figure 1 and Figure 2 , during rainfall, rainwater flows into the storage cavity 3 through the expansion groove, and the rainwater in the storage cavity 3 flows into each water storage tank 4 in sequence along the length direction of the expansion joint 2.

[0040] After the rainwater flows into the water storage tank 4, the floating ball 6 rises under the action of buoyancy, thereby pulling the push plate to move through the pull wire 7, and the push plate pushes the garbage in the expansion joint 2 towards the storage cavity 3.

[0041] When the rainwater fills each water storage tank 4 in sequence along the length direction of the expansion joint 2, the floating ball 6 moves in each water storage tank 4 along the direction away from the storage cavity 3 under the action of buoyancy and the thrust of the rainwater until the push plate pushes the garbage in the expansion joint 2 into the storage cavity 3.

[0042] Refer to Figure 1 and Figure 2 , a plurality of water leakage holes 8 for draining water are opened at the bottom of the storage cavity 3. A liquid level sensor 11 is bolted at a position close to the bottom of the storage cavity 3, and the liquid level sensor 11 is electrically connected to the control system. Drainage through holes 9 are opened at positions of the bridge body 1 corresponding to the lower parts of the plurality of water storage tanks 4. The drainage through holes 9 communicate with the bottom of each water storage tank 4, and a drain valve 10 is provided at the communicating part. The drain valve 10 is electrically connected to the control system.

[0043] When the rainfall stops, the storage cavity 3 stops water intake, and the remaining rainwater in the storage cavity 3 slowly leaks out through the water leakage holes 8. When the water level in the storage cavity 3 is lower than the liquid level sensor 11, the liquid level sensor 11 opens the drain valve 10 through the control system, so that the rainwater in the water storage tank 4 is completely drained through the drain valve 10 and the drainage channel.

[0044] Refer to Figure 1 and Figure 2, the reset assembly includes a first wire winding rod 12 rotatably arranged at the other end of the expansion joint 2 relative to the storage cavity 3, and a reset rope 13 is wound around the first wire winding rod 12. A water impeller 14 is also rotatably arranged at the water outlet end of the drain through hole 9, and a wire winding disc 15 is fixedly sleeved on the rotating shaft of the water impeller 14. One end of the reset rope 13 is tied to the push plate, and the other end is wound around the wire winding disc 15.

[0045] When the push plate pushes the garbage in the expansion joint 2 into the storage cavity 3, the push plate pulls out the reset rope 13 on the first wire winding rod 12. When rainwater is discharged through the drain through hole 9, the rainwater impacts the water impeller 14, and the water impeller 14 drives the wire winding wheel to rotate, thereby winding up the reset rope 13 to pull the push plate to move in the reverse direction to achieve reset. At this time, the pull wire 7 will pull the floating ball 6 back into the water storage tank 4 closest to the storage cavity 3.

[0046] Refer to Figure 1 and Figure 2 , the drain through hole 9 is arranged to incline downward along its axis direction. The downward inclination setting enables the rainwater to be discharged through the drain through hole 9. Under the accelerating action of gravity, the impact intensity on the water impeller 14 is increased to ensure that the push plate can be reset.

[0047] The implementation principle of the self-cleaning bridge expansion joint structure in the embodiment of the present application is as follows:

[0048] During rainfall, rainwater flows into the storage cavity 3 through the expansion joint 2, and the rainwater in the storage cavity 3 flows into each water storage tank 4 along the length direction of the expansion joint 2 through each communication pipe 5 in sequence. When the rainwater flows into the water storage tank 4, the floating ball 6 floats up and transfers to the water storage tank 4 farther away from the storage cavity 3 along the direction away from the storage cavity 3 through the communication pipe 5. During this process, the floating ball 6 pulls the push plate to move towards the direction close to the storage cavity 3 through the pull wire 7, and the push plate pulls out the reset rope 13 wound around the first wire winding rod 12 and the wire winding wheel, so that the push plate pushes the garbage in the expansion joint 2 into the storage cavity 3.

[0049] When the rainfall stops, the storage cavity 3 stops water intake, and the remaining rainwater in the storage cavity 3 slowly leaks out through the water leakage holes 8. When the water level in the storage cavity 3 is lower than the liquid level sensor 11, the liquid level sensor 11 opens the drain valve 10 through the control system, so that the rainwater in the water storage tank 4 is completely discharged through the drain valve 10 and the drain passage. The rainwater impacts the water impeller 14, and the water impeller 14 drives the wire winding wheel to rotate, thereby winding up the reset rope 13 to pull the push plate to move in the reverse direction to achieve reset. At this time, the pull wire 7 will pull the floating ball 6 back into the water storage tank 4 closest to the storage cavity 3.

[0050] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A self-cleaning bridge expansion joint structure, comprising a bridge body (1) and an expansion joint (2) opened on the bridge body (1), characterized in that: A push plate is arranged in the expansion joint (2). A storage cavity (3) communicating with the expansion joint (2) is formed in the bridge body (1) at a position below the expansion joint (2). A material pushing mechanism is further arranged in the bridge body (1) and is used for pushing the push plate to reciprocate in the expansion joint (2), so as to push the garbage in the expansion joint (2) into the storage cavity (3). The material pushing mechanism comprises a plurality of water storage tanks (4) arranged below the expansion joint (2) and arranged along the length direction thereof. The storage cavity (3) communicates with the water storage tank (4) at the outermost end. A communication pipe (5) in an inverted U shape is connected between two adjacent water storage tanks (4). The material pushing mechanism further comprises a floating ball (6) arranged in the water storage tank (4) closest to the storage cavity (3). The cross section of the floating ball (6) is equal to the cross section of the communication pipe (5). A pulling wire (7) is arranged on the floating ball (6). The pulling wire (7) first penetrates into the storage cavity (3), then penetrates out of the storage cavity (3) and is arranged on the push plate. The material pushing mechanism further comprises a reset assembly for driving the push plate to move away from the storage cavity (3) to realize resetting.

2. The self-cleaning bridge expansion joint structure according to claim 1, wherein: One end of the communication pipe (5) extending into the water storage tank (4) is close to the bottom of the water storage tank (4).

3. The self-cleaning bridge expansion joint structure according to claim 1, characterized in that: A plurality of water leakage holes (8) for draining water are formed in the bottom of the storage cavity (3). A drainage through hole (9) is formed in the bridge body (1) at a position below the plurality of water storage tanks (4). The drainage through hole (9) communicates with the bottom of each water storage tank (4), and a drainage valve (10) is arranged at the communicating position. A liquid level sensor (11) is arranged at a position close to the bottom of the storage cavity (3). The drainage valve (10) and the liquid level sensor (11) are both electrically connected to a control system.

4. The self-cleaning bridge expansion joint structure according to claim 3, characterized in that: The reset assembly comprises a first wire winding rod (12) rotatably arranged at the other end of the expansion joint (2) relative to the storage cavity (3). A reset rope (13) is wound around the first wire winding rod (12). An impeller (14) is further rotatably arranged in the drainage through hole (9). A wire winding disc (15) is arranged on the rotating shaft of the impeller (14). One end of the reset rope (13) is arranged on the push plate, and the other end is wound around the wire winding disc (15).

5. The self-cleaning bridge expansion joint structure according to claim 3, characterized in that: The drainage through hole (9) is arranged to incline downward along its axial direction.

6. The self-cleaning bridge expansion joint structure according to claim 1, characterized in that: The push plate comprises two single plates (16). A sliding groove (17) is formed in one of the single plates (16). A sliding block (18) sliding in the sliding groove (17) is arranged on the other single plate (16). The cross sections of the sliding groove (17) and the sliding block (18) are both arranged in a dovetail shape. A compression spring (19) is propped between the end parts of the sliding block (18) and the sliding groove (17).

7. The self-cleaning bridge expansion joint structure according to claim 6, characterized in that: Polytetrafluoroethylene is coated on both of the two single plates (16).

Images