Expressway concrete bridge expansion joint area repairing structure and construction method

Abstract

The invention relates to the technical field of bridge expansion joint repairing, and discloses an expressway concrete bridge expansion joint area repairing structure and a construction method.The expressway concrete bridge expansion joint area repairing structure comprises a power mechanism, the power mechanism further comprises a fixing support, a horn pipe is fixedly connected to the side wall of the fixing support, and the horn pipe and a striker plate are arranged in equipment; before the equipment is used, a hose of a dust collector is connected to the outer wall of the connecting opening, a power source of the electric motor is connected, the electric motor drives the gear ring to rotate through the gear, the gear ring achieves the air suction process of the equipment through the fan blades, and at the moment, dust and stones enter the equipment from the connecting opening at the same time; when a part of stones pass through a gap between the baffle plate and the flared pipe, the other end of the flared pipe is larger, the wind speed is reduced, the stones cannot be driven to continuously move, and the stones fall into the stone collecting plate due to the dead weight.

Description

Technical Field

[0001] The invention relates to the technical field of bridge expansion joint repair equipment, and in particular to a highway concrete bridge expansion joint area repair structure and a construction method. Background Art

[0002] As an important auxiliary structure in the concrete bridge structure of highways, the structural performance of the transition zone of the bridge expansion joint has an important impact on the service performance of the bridge structure. At present, the main repair method for the transition zone of the expansion joint of the concrete bridge of highways is: first chisel out the original filling material in the transition zone of the bridge expansion joint, and then pour a certain thickness of micro-expansion high-strength ordinary concrete or steel fiber reinforced concrete and other repair materials into the reserved groove, and finally finish and plaster the surface, and open to traffic after a certain period of maintenance.

[0003] Among them, since the concrete bridge is in an outdoor environment and the expansion joint area is exposed to the outside all year round, a large amount of gravel and dust will accumulate in this area. Before repair, a vacuum cleaner is needed to absorb the excess impurities at this location. However, during the adsorption, the absorbed gravel will come into contact with the internal fan blades after entering the equipment, causing damage to the fan blades. In response to the above problems, the following solutions are proposed. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a repair structure for the expansion joint area of ​​a highway concrete bridge, comprising a power mechanism, the power mechanism also comprising a fixed bracket, a trumpet tube is fixedly connected to the side wall of the fixed bracket, a sealing ring is fixedly connected to the side wall of the fixed bracket, and a gear ring is rotatably connected to the side wall of the sealing ring;

[0005] The cleaning mechanism includes a fan blade fixedly connected to the inner wall of the gear ring, an end of the fan blade away from the gear ring is fixedly connected to a fixed tube, a rotating disk is rotatably connected to the inner wall of the fixed tube, and a collecting column is fixedly connected to the side wall of the rotating disk;

[0006] The screening mechanism includes a stone collecting plate connected to the bottom of the trumpet pipe, a fixed plate is arranged at the bottom of the stone collecting plate, a limiting rod is fixedly connected to the top of the fixed plate, a rotation limiting plate is rotatably connected to the side wall of the limiting rod, and a pushing hydraulic rod is fixedly connected to the inner wall of the limiting rod.

[0007] Preferably, the power mechanism also includes a circular tube fixedly connected to the inner wall of the gear ring, a mounting plate is rotatably connected to the outer wall of the circular tube, and an electric motor is fixedly connected to the top of the mounting plate.

[0008] Preferably, the power mechanism also includes a gear fixedly connected to the output shaft of the electric motor, the outer wall of the gear is meshingly connected to the outer wall of the gear ring, and the end of the trumpet tube away from the fixed bracket is fixedly connected with a connecting port.

[0009] Preferably, the cleaning mechanism also includes a plurality of inclined grooves provided on the side walls of the fixed tube, the inner walls of the plurality of inclined grooves are rotatably connected with rolling columns, the inner walls of the fan blades are provided with sliding grooves, the side walls of the sliding grooves are through-connected with the inner walls of the inclined grooves, and utilizing the above-mentioned characteristics of the cross displacement, pulling lines are provided inside the device, and when the cross is displaced, the plurality of pulling lines are pulled, forcing the collecting column at the other end to rotate, and the rotation angle of the collecting column will be converted into the displacement distance of the cross, and the collecting column is used to ensure that the lengths and speeds of the displacements of the plurality of crosses are equal, thereby avoiding the situation in which the center of gravity of the fan blade rotation changes due to the unequal lengths of the plurality of crosses and counterweights during the displacement process, thereby affecting the rotation speed of the fan blades and the dust collection efficiency.

[0010] Preferably, the cleaning mechanism also includes a cross slidably connected to the inner wall of the sliding groove, counterweights are fixedly connected to both sides of the cross, a fan blade scraper is fixedly connected to the outer wall of the cross, the side wall of the fan blade scraper is slidably connected to the outer wall of the fan blade, a pulling line is fixedly connected to the side wall of the cross, a vortex spring is fixedly connected to the side wall of the collecting column, and one end of the vortex spring away from the collecting column is fixedly connected to the inner wall of the fixed tube. By utilizing the centrifugal force generated by the rotation of the above-mentioned fan blades, a cross and a counterweight are arranged inside the device. When the fan blades start to rotate, the counterweight is affected by the rotation of the fan blades. The centrifugal force generated drives the cross to move outward along the inner wall of the sliding groove. During this process, the cross drives the fan blade scraper to move along the outer wall of the fan blade, so that the fan blade scraper cleans the outer wall of the fan blade once. In addition, after the equipment completes the vacuuming process, the equipment stops running, the centrifugal force generated by the fan blade disappears, and the vortex spring releases the accumulated power to cause the collecting column to rotate. The collecting column pulls the cross back to its original position through the pulling line, and cleans the outer wall of the fan blade again. Through the application of the above components, the fan blade can be cleaned autonomously before and after the equipment works.

[0011] Preferably, the screening mechanism also includes a baffle plate fixedly connected to the inner wall of the trumpet tube, an L-shaped sliding rod is slidably connected to the inner wall of the through hole of the baffle plate, one end of the L-shaped sliding rod close to the baffle plate is fixedly connected to the cleaning rod, and the end of the pulling line away from the cross is fixedly connected to the outer wall of the baffle plate. The trumpet tube and the baffle plate are arranged inside the device by utilizing the characteristic that when the airflow enters the expansion part from the contraction part, the airflow velocity decreases due to the increase in the cross-sectional area of ​​the expansion part. Before using the device, the hose of the vacuum cleaner is connected to the outer wall of the connecting port, and the power of the electric motor is turned on. The electric motor drives the gear ring to rotate through the gear, and the gear ring rotates through the gear. Several fan blades realize the process of air suction of the equipment. At this time, dust and stone enter the interior of the equipment from the connection port at the same time and come into contact with the baffle plate. After the stone comes into contact with the baffle plate, it enters the inner wall of the stone collecting plate along the inner wall of the trumpet tube due to its own weight. When some stones pass through the gap between the baffle plate and the trumpet tube, since the other end of the trumpet tube is too large, the speed of the wind flow decreases at this time, and the stone will not be able to move further. The stone falls into the stone collecting plate due to its own weight. Through the application of the above-mentioned components, the stone and dust entering the equipment are distinguished to avoid contact between the stone and the fan blades, causing deformation of the fan blades and affecting the service life of the fan blades.

[0012] Preferably, the screening mechanism also includes a reset telescopic rod fixedly connected to the top of the fixed plate, the end of the reset telescopic rod away from the fixed plate is fixedly connected to the load-bearing plate, the top of the load-bearing plate is fixedly connected to a T-shaped connecting rod, and the end of the L-shaped sliding rod away from the cleaning rod is rotatably connected to the outer wall of the T-shaped connecting rod, and the collected stones are concentrated on the position of the stone collecting plate, and a load-bearing plate and a reset telescopic rod are arranged inside the equipment. During the operation of the equipment, as the stones on the top of the load-bearing plate increase, the pressure on the load-bearing plate increases synchronously, and moves downward along the inside of the stone collecting plate, and the load-bearing plate drives the cleaning rod to move downward synchronously through the L-shaped sliding rod, and the side wall of the cleaning rod will move down along the windward surface of the baffle plate. Through the application of the above-mentioned components, most of the dust and impurities stuck to the surface of the baffle plate can be effectively removed, to avoid dust clogging the gap between the baffle plate and the trumpet tube, affecting the working efficiency of the equipment.

[0013] A highway concrete bridge expansion joint area repair structure and construction method, comprising the following steps:

[0014] S1: Before using the present invention, connect the hose of the vacuum cleaner to the outer wall of the connection port, and turn on the power of the electric motor, so that the electric motor drives the gear ring to rotate through the gear;

[0015] S2: The gear ring realizes the process of air suction through several fan blades. At this time, dust and stones enter the equipment from the connection port at the same time and come into contact with the baffle plate. After the stones come into contact with the baffle plate, they enter the inner wall of the stone collecting plate along the inner wall of the trumpet tube under their own weight;

[0016] S3: When some stones pass through the gap between the baffle plate and the trumpet tube, the wind speed decreases because the other end of the trumpet tube is larger, and the stones cannot be driven to continue moving. The stones fall into the stone collecting plate due to their own weight.

[0017] The present invention has the following beneficial effects:

[0018] (1) The present invention utilizes the characteristic that when the airflow enters the expansion part from the contraction part, the airflow velocity decreases due to the increase in the cross-sectional area of ​​the expansion part. A trumpet tube and a baffle plate are arranged inside the device. Before using the device, the hose of the vacuum cleaner is connected to the outer wall of the connection port, and the power of the electric motor is turned on. The electric motor drives the gear ring to rotate through the gear, and the gear ring realizes the suction process of the device through a plurality of fan blades. At this time, dust and stone enter the device from the connection port at the same time and come into contact with the baffle plate. After the stone comes into contact with the baffle plate, it enters the inner wall of the stone collecting plate along the inner wall of the trumpet tube due to its own weight. When some stones pass through the gap between the baffle plate and the trumpet tube, because the other end of the trumpet tube is too large, the speed of the wind flow decreases at this time, and the stone will not be able to drive the stone to continue to move. The stone falls into the stone collecting plate due to its own weight. Through the application of the above components, the stone and dust entering the device are distinguished, and the stone is prevented from coming into contact with the fan blades, causing the fan blades to deform and affecting the service life of the fan blades.

[0019] (2) The present invention utilizes the centrifugal force generated by the rotation of the above-mentioned fan blades, and a cross and a counterweight are arranged inside the device. When the fan blades start to rotate, the counterweight is driven by the centrifugal force generated by the rotation of the fan blades to drive the cross to move outward along the inner wall of the sliding groove. During this process, the cross drives the fan blade scraper to move along the outer wall of the fan blade, so that the fan blade scraper performs a single cleaning on the outer wall of the fan blade; in addition, after the equipment completes the dust collection process, the equipment stops running, the centrifugal force generated by the fan blade disappears, and the vortex spring releases the accumulated power, causing the collection column to rotate, and the collection column pulls the cross back to its original position through the pull line, and cleans the outer wall of the fan blade again. Through the application of the above-mentioned components, the fan blades can be cleaned autonomously before and after the equipment works.

[0020] (3) The present invention utilizes the characteristics of the above-mentioned cross displacement and is provided with pulling wires inside the device. When the cross is displaced, several pulling wires are pulled, forcing the collecting column at the other end to rotate, and the rotation angle of the collecting column will be converted into the distance of the cross displacement. The collecting column is used to ensure that the lengths and speeds of several cross displacements are equal, thereby avoiding the situation where the center of gravity of the fan blades changes due to the unequal lengths of several crosses and counterweights during the displacement process, thereby affecting the rotation speed of the fan blades and the dust collection efficiency.

[0021] (4) The present invention utilizes the collected stones to be concentrated at the position of the stone collecting plate, and a load-bearing plate and a reset telescopic rod are arranged inside the equipment. During the operation of the equipment, as the stones on the top of the load-bearing plate increase, the pressure on the load-bearing plate increases synchronously, and moves downward along the inside of the stone collecting plate. The load-bearing plate drives the cleaning rod to move downward synchronously through the L-shaped sliding rod, and the side wall of the cleaning rod will move downward along the windward surface of the baffle plate. Through the application of the above-mentioned components, most of the dust and impurities adhering to the surface of the baffle plate can be effectively removed, avoiding dust clogging the gap between the baffle plate and the trumpet tube, thereby affecting the working efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is an exploded schematic diagram of the overall structural assembly of the present invention;

[0025] Figure 3 It is a schematic diagram of the internal components of the power mechanism of the present invention;

[0026] Figure 4 It is a schematic diagram of the cleaning mechanism of the present invention;

[0027] Figure 5 It is a schematic diagram of the internal components of the cleaning mechanism of the present invention;

[0028] Figure 6 For the present invention Figure 5 A is an enlarged schematic diagram;

[0029] Figure 7 It is a schematic diagram of the explosion of the cleaning mechanism assembly of the present invention;

[0030] Figure 8 It is a schematic diagram of the screening mechanism of the present invention;

[0031] Fig. 9 For the present invention Figure 8 A magnified schematic diagram of B;

[0032] Fig.10 It is a schematic diagram of the working process of the present invention.

[0033] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0034] In the figure: 1. power mechanism; 101. fixed bracket; 102. trumpet tube; 103. sealing ring; 104. gear ring; 105. round tube; 106. mounting plate; 107. electric motor; 108. gear; 109. connection port; 2. cleaning mechanism; 201. fan blade; 202. fixed tube; 203. rotating disk; 204. collecting column; 205. inclined slot; 206. rolling column; 207. sliding slot; 208 , cross; 209, counterweight; 210, fan blade scraper; 211, pulling line; 212, vortex spring; 3, screening mechanism; 301, stone collecting plate; 302, fixing plate; 303, limiting rod; 304, material blocking plate; 305, L-shaped sliding rod; 306, cleaning rod; 307, resetting telescopic rod; 308, load-bearing plate; 309, T-shaped connecting rod; 310, rotation limiting plate; 311, pushing hydraulic rod. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] For example, see Figure 1 - Figure 3 The present invention is a repair structure for expansion joints of a highway concrete bridge, comprising a power mechanism 1, the power mechanism 1 further comprising a fixed bracket 101, a trumpet tube 102 is fixedly connected to the side wall of the fixed bracket 101, a sealing ring 103 is fixedly connected to the side wall of the fixed bracket 101, and a gear ring 104 is rotatably connected to the side wall of the sealing ring 103;

[0037] The cleaning mechanism 2 includes a fan blade 201 fixedly connected to the inner wall of the gear ring 104, one end of the fan blade 201 away from the gear ring 104 is fixedly connected to a fixed tube 202, a rotating disk 203 is rotatably connected to the inner wall of the fixed tube 202, and a collecting column 204 is fixedly connected to the side wall of the rotating disk 203;

[0038] The screening mechanism 3 includes a stone collecting plate 301 which is connected to the bottom of the trumpet tube 102, a fixed plate 302 is arranged at the bottom of the stone collecting plate 301, a limiting rod 303 is fixedly connected to the top of the fixed plate 302, a rotating limiting plate 310 is rotatably connected to the side wall of the limiting rod 303, and a pushing hydraulic rod 311 is fixedly connected to the inner wall of the limiting rod 303, wherein before use, the staff delivers the fixed plate 302 to the bottom of the stone collecting plate 301, and ensures that the limiting rod 303 passes through the through hole of the stone collecting plate 301, when the limiting rod 303 passes through the through hole of the stone collecting plate 301, the hydraulic rod 311 is pushed to push the rotating limiting plate 310 to complete the limiting, thereby realizing the installation of the stone collecting plate 301 and the fixed plate 302.

[0039] The power mechanism 1 further comprises a circular tube 105 fixedly connected to the inner wall of the gear ring 104 , a mounting plate 106 is rotatably connected to the outer wall of the circular tube 105 , and an electric motor 107 is fixedly connected to the top of the mounting plate 106 .

[0040] The power mechanism 1 further comprises a gear 108 fixedly connected to the output shaft of the electric motor 107 , the outer wall of the gear 108 is meshedly connected to the outer wall of the gear ring 104 , and one end of the trumpet tube 102 away from the fixed bracket 101 is fixedly connected to a connection port 109 .

[0041] For example 2, please refer to Figure 4 - Fig.10 The present invention is a repair structure for the expansion joint area of ​​a highway concrete bridge. On the basis of the first embodiment, the cleaning mechanism 2 also includes a plurality of inclined grooves 205 opened on the side wall of the fixed tube 202, and the inner walls of the plurality of inclined grooves 205 are rotatably connected with rolling columns 206. The inner wall of the fan blade 201 is provided with a sliding groove 207, and the side wall of the sliding groove 207 is connected with the inner wall of the inclined groove 205. By utilizing the characteristics of the displacement of the above-mentioned cross 208, a pulling line 211 is arranged inside the device. When the cross 208 is displaced, the plurality of pulling lines 211 are pulled, forcing the collecting column 204 at the other end to rotate, and the rotation angle of the collecting column 204 will be converted into the displacement distance of the cross 208. The collecting column 204 ensures that the displacement length and speed of the plurality of crosses 208 are equal, so as to avoid the plurality of crosses 208 and the counterweight block 209. During the displacement process, due to the unequal length, the center of gravity of the rotation of the fan blade 201 changes, which affects the rotation speed and dust collection efficiency of the fan blade 201.

[0042] The cleaning mechanism 2 also includes a cross 208 slidably connected to the inner wall of the sliding groove 207, and counterweights 209 are fixedly connected to both sides of the cross 208. A fan blade scraper 210 is fixedly connected to the outer wall of the cross 208. The side wall of the fan blade scraper 210 is slidably connected to the outer wall of the fan blade 201. A pulling line 211 is fixedly connected to the side wall of the cross 208. A vortex spring 212 is fixedly connected to the side wall of the collecting column 204. The end of the vortex spring 212 away from the collecting column 204 is fixedly connected to the inner wall of the fixed tube 202. The centrifugal force generated by the rotation of the above-mentioned fan blade 201 is used to arrange a cross 208 and a counterweight 209 inside the device. When the fan blade 201 starts to rotate, the counterweight 209 is affected by the fan. The centrifugal force generated by the rotation of the blade 201 drives the cross 208 to move outward along the inner wall of the sliding groove 207. During this process, the cross 208 drives the fan blade scraper 210 to move along the outer wall of the fan blade 201, so that the fan blade scraper 210 performs a single cleaning of the outer wall of the fan blade 201; in addition, after the equipment completes the vacuuming process, the equipment stops running, the centrifugal force generated by the fan blade 201 disappears, and the spiral spring 212 releases the accumulated power to cause the collecting column 204 to rotate, and the collecting column 204 pulls the cross 208 back to its original position through the pull line 211, and cleans the outer wall of the fan blade 201 again. Through the application of the above-mentioned components, the fan blade 201 can be cleaned autonomously before and after the equipment works.

[0043] The screening mechanism 3 also includes a baffle plate 304 fixedly connected to the inner wall of the trumpet tube 102, an L-shaped slide bar 305 is slidably connected to the inner wall of the through hole of the baffle plate 304, one end of the L-shaped slide bar 305 close to the baffle plate 304 is fixedly connected to a cleaning rod 306, and the end of the pulling line 211 away from the cross 208 is fixedly connected to the outer wall of the baffle plate 304. The trumpet tube 102 and the baffle plate 304 are arranged inside the device by utilizing the characteristic that when the airflow enters the expansion part from the contraction part, the cross-sectional area of ​​the expansion part increases and the airflow velocity decreases. Before using the device, the hose of the vacuum cleaner is connected to the outer wall of the connection port 109, and the power of the electric motor 107 is turned on. The electric motor 107 drives the gear ring 104 to rotate through the gear 108, and the gear ring 104 rotates. The ring 104 realizes the air suction process of the equipment through a plurality of fan blades 201. At this time, dust and stones enter the interior of the equipment from the connection port 109 at the same time and come into contact with the baffle plate 304. After the stones come into contact with the baffle plate 304, they enter the inner wall of the stone collecting plate 301 along the inner wall of the trumpet tube 102 due to their own weight. When some stones pass through the gap between the baffle plate 304 and the trumpet tube 102, since the other end of the trumpet tube 102 is too large, the speed of the wind flow decreases at this time, and the stones will not be able to continue to move. The stones fall into the stone collecting plate 301 due to their own weight. Through the application of the above-mentioned components, the stones entering the interior of the equipment are distinguished from the dust, so as to avoid the stones coming into contact with the fan blades 201, causing the fan blades 201 to deform, thereby affecting the service life of the fan blades 201.

[0044] The screening mechanism 3 also includes a resetting telescopic rod 307 fixedly connected to the top of the fixed plate 302, and the end of the resetting telescopic rod 307 away from the fixed plate 302 is fixedly connected to the bearing plate 308, and the top of the bearing plate 308 is fixedly connected to the T-shaped connecting rod 309, and the end of the L-shaped sliding rod 305 away from the cleaning rod 306 is rotatably connected to the outer wall of the T-shaped connecting rod 309. When using the device, ensure that the T-shaped connecting rod 309 is at the inner wall of the L-shaped sliding rod 305, and the collected stones are concentrated at the position of the stone collecting plate 301. The bearing plate 308 and the resetting telescopic rod 307 are arranged inside the device. Telescopic rod 307, during the operation of the equipment, as the stones on the top of the load-bearing plate 308 increase, the pressure on the load-bearing plate 308 increases synchronously, and moves downward along the inside of the stone collecting plate 301, and the load-bearing plate 308 drives the cleaning rod 306 to move downward synchronously through the L-shaped sliding rod 305, and the side wall of the cleaning rod 306 will move downward along the windward surface of the baffle plate 304. Through the application of the above components, most of the dust and impurities stuck on the surface of the baffle plate 304 can be effectively removed, avoiding dust clogging the gap between the baffle plate 304 and the trumpet tube 102, affecting the working efficiency of the equipment.

[0045] The method for using the repair device includes the following steps:

[0046] S1: Before using the present invention, connect the hose of the vacuum cleaner to the outer wall of the connection port 109, and turn on the power of the electric motor 107, so that the electric motor 107 drives the gear ring 104 to rotate through the gear 108;

[0047] S2: The gear ring 104 realizes the process of air suction through a plurality of blades 201. At this time, dust and stones enter the interior of the device from the connection port 109 at the same time and come into contact with the baffle plate 304. After the stones come into contact with the baffle plate 304, they enter the inner wall of the stone collecting plate 301 along the inner wall of the trumpet tube 102 under their own weight.

[0048] S3: When some stones pass through the gap between the baffle plate 304 and the bell tube 102, since the other end of the bell tube 102 is larger, the wind speed decreases and cannot drive the stones to continue to move. The stones fall into the stone collecting plate 301 due to their own weight.

[0049] A specific application of this embodiment is: before using the device, connect the hose of the vacuum cleaner to the outer wall of the connection port 109, and turn on the power of the electric motor 107. The electric motor 107 drives the gear ring 104 to rotate through the gear 108, and the gear ring 104 realizes the process of suction of the device through a plurality of fan blades 201. At this time, dust and stones enter the interior of the device from the connection port 109 at the same time, and come into contact with the baffle plate 304. After the stones come into contact with the baffle plate 304, they are moved along the trumpet tube 102 by their own weight. The inner wall of the stone collecting plate 301 enters, and when some stones pass through the gap between the baffle plate 304 and the trumpet tube 102, since the other end of the trumpet tube 102 is larger, the speed of the wind flow decreases at this time, and the stone cannot be driven to continue to move. The stone falls into the stone collecting plate 301 due to its own weight. Through the application of the above-mentioned components, the stones entering the equipment are distinguished from the dust, so as to prevent the stones from contacting the fan blades 201, causing the fan blades 201 to deform and affecting the service life of the fan blades 201.

[0050] Utilizing the centrifugal force generated by the rotation of the blade 201, a cross 208 and a counterweight 209 are provided inside the device. When the blade 201 starts to rotate, the counterweight 209 is driven by the centrifugal force generated by the rotation of the blade 201 to drive the cross 208 to move outward along the inner wall of the sliding groove 207. During this process, the cross 208 drives the blade scraper 210 to move along the outer wall of the blade 201, so that the blade scraper 210 performs a single cleaning on the outer wall of the blade 201. In addition, after the device completes the vacuuming process, the device stops running, the centrifugal force generated by the blade 201 disappears, and the vortex spring 212 releases the accumulated power to cause the collection column 204 to rotate, and the collection column 204 pulls the cross 208 back to its original position through the pulling line 211, and then The outer wall of the fan blade 201 is cleaned for the second time. Through the application of the above-mentioned components, the fan blade 201 can be cleaned autonomously before and after the device works. By utilizing the displacement characteristics of the above-mentioned cross 208, a pulling line 211 is arranged inside the device. When the cross 208 displaces, several pulling lines 211 are pulled, forcing the collecting column 204 at the other end to rotate, and the rotation angle of the collecting column 204 will be converted into the displacement distance of the cross 208. The collecting column 204 ensures that the displacement lengths and speeds of several crosses 208 are equal, avoiding the difference in lengths of several crosses 208 and counterweights 209 during the displacement process, which causes the center of gravity of the rotation of the fan blade 201 to change, affecting the rotation speed of the fan blade 201 and the dust collection efficiency.

[0051] The collected stones are concentrated on the stone collecting plate 301, and a load-bearing plate 308 and a resetting telescopic rod 307 are arranged inside the equipment. During the operation of the equipment, as the stones on the top of the load-bearing plate 308 increase, the pressure on the load-bearing plate 308 increases synchronously, and moves downward along the inside of the stone collecting plate 301, and the load-bearing plate 308 drives the cleaning rod 306 to move downward synchronously through the L-shaped sliding rod 305, and the side wall of the cleaning rod 306 will move downward along the windward surface of the baffle plate 304. Through the application of the above components, most of the dust and impurities adhering to the surface of the baffle plate 304 can be effectively removed, so as to avoid dust clogging the gap between the baffle plate 304 and the trumpet tube 102, thereby affecting the working efficiency of the equipment.

[0052] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A repair structure for expansion joints of a highway concrete bridge, comprising a power mechanism (1), the power mechanism (1) further comprising a fixed bracket (101), a trumpet tube (102) fixedly connected to the side wall of the fixed bracket (101), a sealing ring (103) fixedly connected to the side wall of the fixed bracket (101), a gear ring (104) rotatably connected to the side wall of the sealing ring (103), characterized in that: Also includes: A cleaning mechanism (2), the cleaning mechanism (2) comprising a fan blade (201) fixedly connected to the inner wall of the gear ring (104), one end of the fan blade (201) away from the gear ring (104) being fixedly connected to a fixed tube (202), a rotating disk (203) being rotatably connected to the inner wall of the fixed tube (202), and a collecting column (204) being fixedly connected to the side wall of the rotating disk (203); The screening mechanism (3) comprises a stone collecting plate (301) connected to the bottom of the bell tube (102); a fixing plate (302) is arranged at the bottom of the stone collecting plate (301); a limiting rod (303) is fixedly connected to the top of the fixing plate (302); a rotation limiting plate (310) is rotatably connected to the side wall of the limiting rod (303); and a pushing hydraulic rod (311) is fixedly connected to the inner wall of the limiting rod (303).

2. A highway concrete bridge expansion joint repair structure according to claim 1, characterized in that: The power mechanism (1) further comprises a circular tube (105) fixedly connected to the inner wall of the gear ring (104); a mounting plate (106) is rotatably connected to the outer wall of the circular tube (105); and an electric motor (107) is fixedly connected to the top of the mounting plate (106).

3. A highway concrete bridge expansion joint repair structure according to claim 2, characterized in that: The power mechanism (1) further comprises a gear (108) fixedly connected to the output shaft of the electric motor (107), the outer wall of the gear (108) being meshingly connected to the outer wall of the gear ring (104), and the end of the bell tube (102) away from the fixed bracket (101) is fixedly connected to a connection port (109).

4. A highway concrete bridge expansion joint repair structure according to claim 3, characterized in that: The cleaning mechanism (2) further comprises a plurality of inclined grooves (205) provided on the side wall of the fixed tube (202), the inner walls of the plurality of inclined grooves (205) being rotatably connected to rolling columns (206), a sliding groove (207) being provided on the inner wall of the fan blade (201), and the side wall of the sliding groove (207) being through-connected to the inner wall of the inclined groove (205).

5. The highway concrete bridge expansion joint repair structure according to claim 4 is characterized by: The cleaning mechanism (2) also includes a cross (208) slidably connected to the inner wall of the sliding groove (207), counterweights (209) are fixedly connected to both sides of the cross (208), a fan blade scraper (210) is fixedly connected to the outer wall of the cross (208), the side wall of the fan blade scraper (210) is slidably connected to the outer wall of the fan blade (201), a pulling line (211) is fixedly connected to the side wall of the cross (208), and a vortex spring (212) is fixedly connected to the side wall of the collecting column (204), and one end of the vortex spring (212) away from the collecting column (204) is fixedly connected to the inner wall of the fixed tube (202).

6. The highway concrete bridge expansion joint repair structure according to claim 5, characterized in that: The screening mechanism (3) further comprises a material blocking plate (304) fixedly connected to the inner wall of the bell tube (102); an L-shaped sliding rod (305) is slidably connected to the inner wall of the through hole of the material blocking plate (304); one end of the L-shaped sliding rod (305) close to the material blocking plate (304) is fixedly connected to a cleaning rod (306); and one end of the pulling line (211) away from the cross (208) is fixedly connected to the outer wall of the material blocking plate (304).

7. A highway concrete bridge expansion joint repair structure according to claim 6, characterized in that: The screening mechanism (3) further comprises a resetting telescopic rod (307) fixedly connected to the top of the fixed plate (302); one end of the resetting telescopic rod (307) away from the fixed plate (302) is fixedly connected to a load-bearing plate (308); the top of the load-bearing plate (308) is fixedly connected to a T-shaped connecting rod (309); and one end of the L-shaped sliding rod (305) away from the cleaning rod (306) is rotatably connected to the outer wall of the T-shaped connecting rod (309).

8. A method for using a highway concrete bridge expansion joint repair structure, using the highway bridge expansion joint repair structure as claimed in claim 7, characterized in that: The steps include: S1: Before using the present invention, connect the hose of the vacuum cleaner to the outer wall of the connection port (109), and turn on the power of the electric motor (107), so that the electric motor (107) drives the gear ring (104) to rotate through the gear (108); S2: The gear ring (104) realizes the process of air suction of the equipment through a plurality of fan blades (201). At this time, dust and stones enter the interior of the equipment from the connection port (109) at the same time and come into contact with the baffle plate (304). After the stones come into contact with the baffle plate (304), they are carried by their own weight along the inner wall of the bell tube (102) and enter the inner wall of the stone collecting plate (301); S3: When some stones pass through the gap between the blocking plate (304) and the bell tube (102), the wind speed decreases due to the larger end of the bell tube (102), and the stones cannot be driven to move further. The stones fall into the stone collecting plate (301) due to their own weight.

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