CN114892544B - Bridge expansion joint repairing device and repairing method thereof - Google Patents
Bridge expansion joint repairing device and repairing method thereof Download PDFInfo
- Publication number
- CN114892544B CN114892544B CN202210324448.3A CN202210324448A CN114892544B CN 114892544 B CN114892544 B CN 114892544B CN 202210324448 A CN202210324448 A CN 202210324448A CN 114892544 B CN114892544 B CN 114892544B
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- bearing box
- bridge expansion
- repairing device
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000004140 cleaning Methods 0.000 claims abstract description 50
- 230000007480 spreading Effects 0.000 claims abstract description 36
- 238000003892 spreading Methods 0.000 claims abstract description 36
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 238000005520 cutting process Methods 0.000 claims abstract description 32
- 239000012528 membrane Substances 0.000 claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000008602 contraction Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 description 15
- 230000000694 effects Effects 0.000 description 12
- 238000010276 construction Methods 0.000 description 10
- 230000009286 beneficial effect Effects 0.000 description 9
- 230000004888 barrier function Effects 0.000 description 5
- 210000000078 claw Anatomy 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004078 waterproofing Methods 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/083—Waterproofing of bridge decks; Other insulations for bridges, e.g. thermal ; Bridge deck surfacings
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The application relates to the technical field of bridge maintenance, and particularly discloses a bridge expansion joint repairing device and a repairing method thereof, wherein the repairing device comprises a bearing box, a spreading mechanism and a cleaning mechanism; the spreading mechanism comprises a spreading roller which is rotationally connected to the inner wall of the bearing box; the cleaning mechanism comprises a supporting rod, one end of the supporting rod is rotationally connected to the side wall of the bearing box, a transmission mechanism is coaxially rotationally connected to the joint of the supporting rod and the bearing box, a cutting knife is vertically and slidably connected to the inside of the bearing box, the cutting knife is positioned on one side close to the spreading roller, the transmission mechanism can drive the cutting knife to vertically and freely slide, and the cutting knife is positioned above the discharging direction of the spreading roller; the other end of the supporting rod is provided with a cleaning roller. The application aims to provide a bridge expansion joint repairing device and a repairing method thereof, which are used for solving the technical problems that the expansion joint is difficult to clean and the waterproof membrane is slow in laying efficiency.
Description
Technical Field
The application relates to the technical field of bridge maintenance, and particularly discloses a bridge expansion joint repairing device and a repairing method thereof.
Background
With the progress of society and the development of national economy, the requirements on the safety performance of bridge engineering in transportation are higher and higher. The expansion joint of the bridge is a necessary guarantee for bridge safety. The existing bridge expansion joint often causes the problem that the expansion joint is damaged due to the influence of a plurality of factors in construction and later maintenance, so that the service life of the bridge is shortened, and the life and property safety of a user is threatened. And therefore, the bridge expansion joints need to be repaired regularly.
At present, the existing bridge expansion joint repairing technology, for example, chinese patent (publication No. CN 112391958A) discloses a quick repairing method of a bridge expansion joint, and firstly, joint cutting treatment is carried out on a damaged expansion joint structure to be repaired; chiseling broken concrete and a reinforcing steel bar structure of a part to be repaired, and flushing and cleaning; embedding anchor bars at the original concrete side, fixing to form a steel bar framework, and then supporting a mould; installing an expansion joint, adjusting and fixing, and then welding with the embedded bars; flushing the pit and spraying an interface agent; mixing super-early-strength materials and performing layered pouring; trowelling and polishing after the initial setting of the material, spraying a curing agent, and then covering for curing; traffic can be opened after maintenance.
In order to ensure that the expansion joint is prevented from falling into the groove of the expansion joint in the process of casting concrete, the expansion joint is normally paved with a waterproof membrane before casting. For example, chinese patent (publication No. CN 106498849A) discloses a bridge expansion joint comprising embedded bars, expansion joints, mounting grooves, paving layers and elastic material layers; the construction process comprises the following steps: carrying out joint cutting treatment on the concrete bridge surface according to construction requirements and specifications of bridge expansion joints; performing reinforcement pre-burying work of bridge expansion joints, adjusting and fixing, and performing pre-burying reinforcement welding work after no deviation is ensured; paving a waterproof membrane in the expansion joint, brushing a separation interface layer above the waterproof membrane, and then starting the paving layer concrete pouring work; and after the pouring work is finished for 48 hours, taking out the waterproof membrane laid in the expansion joint, and carrying out water closing inspection and construction acceptance inspection, thereby finishing the construction of the bridge expansion joint after the construction is qualified.
However, the existing technology is usually carried out by two separate steps to cover the waterproof membrane and clean the interior of the expansion joint, so that the problem of slow construction efficiency exists. And because the existing expansion joint structure is special, common cleaning equipment is difficult to penetrate into the expansion joint for cleaning, and therefore the problem of difficult cleaning also exists.
Disclosure of Invention
The application aims to provide a bridge expansion joint repairing device and a bridge expansion joint repairing device, which are used for solving the technical problems that the expansion joint is difficult to clean and the waterproof membrane is slow in laying efficiency.
In order to achieve the above purpose, the basic scheme of the application is as follows: the bridge expansion joint repairing device comprises a bearing box, wherein a travelling mechanism is arranged on the bearing box, and the bridge expansion joint repairing device further comprises a spreading mechanism and a cleaning mechanism;
the spreading mechanism comprises a spreading roller which is rotationally connected to the inner wall of the bearing box;
the cleaning mechanism comprises a supporting rod, one end of the supporting rod is rotationally connected to the side wall of the bearing box, a transmission mechanism is coaxially rotationally connected to the joint of the supporting rod and the bearing box, a cutting knife is vertically and slidably connected to the inside of the bearing box, the cutting knife is positioned on one side close to the spreading roller, the transmission mechanism can drive the cutting knife to vertically and freely slide, and the cutting knife is positioned above the discharging direction of the spreading roller; the other end of the supporting rod is provided with a cleaning roller; the cleaning roller is positioned below the bearing box.
The working principle and the beneficial effects of the basic scheme are as follows: according to the technical scheme, the traveling mechanism is utilized to realize the function of moving the bearing box, so that the bearing box can freely move on the ground beside the bridge expansion joint.
The technical effect of automatic spreading of the waterproof film is achieved by the spreading mechanism. The user twines the waterproof membrane on the spreading roller, because spreading roller rotates to be connected at the loading bin, consequently along with spreading roller rotates, can constantly provide the waterproof membrane of outwards extending. The user only needs to fix the first end of waterproof membrane in the one end of expansion joint, along with bearing the weight of the removal of case along expansion joint direction, waterproof membrane can last to cover fixedly along expansion joint extending direction, reaches the purpose of covering the middle slot of expansion joint
This scheme utilizes wiper mechanism to realize the washing to the inside steel bar structure of expansion joint. Because the cleaning roller is located the below of bearing the weight of the case, consequently the cleaning roller can stretch into the inside of expansion joint to with the inside reinforcing bar contact of expansion joint, and then realize the technological effect of cleaning operation. Along with the removal of carrying the case along the expansion joint direction, the cleaning roller can be continued to wash the inside of expansion joint along expansion joint extending direction.
When the bearing box moves to one end of the expansion joint, the cleaning roller below the bearing box can lean against the side wall of the expansion joint, and the cleaning roller can rotate circumferentially with the bearing box through the supporting rod under the acting force of the side wall of the expansion joint along with the continuous forward movement of the bearing box until the cleaning roller rotates to be leveled with the top end of the expansion joint, so that the technical effect that the cleaning roller moves out of the expansion joint is achieved.
And the transmission function of the cutting knife can be realized through the transmission mechanism in the process of rotating the cleaning roller, so that the cutting knife can move downwards along the vertical direction. Because the cutter is located the ejection of compact direction top of spreading roller, consequently along with the cutter downstream, and then realize the automatic cutout to the waterproof film on the spreading roller, realize the technical effect of automatic cutout waterproof film after laying the waterproof film.
Compared with the prior art, the technical scheme has the advantages that the movement of the bearing box can cover the groove of the expansion joint and can clean the inside of the expansion joint. The labor cost is effectively saved, the construction time is shortened, and the repairing construction process of the bridge expansion joint is improved. And this technical scheme can also realize the cutting to the water proof membrane automatically after accomplishing the expansion joint cleanness, realizes the automated handling of relevant step, effectively improves the efficiency of construction.
Further, the transmission mechanism comprises a first gear and a second gear, the first gear is coaxially and fixedly connected with one end of the supporting rod, far away from the spreading roller, the second gear is meshed with the first gear, one side of the cutting knife is provided with a rack, and the rack is meshed with the second gear.
The beneficial effects are that: according to the technical scheme, the cleaning roller is driven to rotate by the first gear in the process of abutting the expansion joint side wall to rotate, and the first gear rotates to drive the second gear to rotate, so that the purpose of converting the rotation direction is achieved. The second gear rotates to drive the vertical movement of the rack on the cutting knife, and then the aim of converting circumferential rotation into vertical movement is achieved, so that the technical effect of vertical downward movement of the cutting knife is finally achieved.
Further, the inner wall fixedly connected with guide box of bearing box, the guide box inner wall is opened there is the guide slot, the vertical sliding connection of rack in the guide slot.
The beneficial effects are that: according to the technical scheme, the guide box and the guide groove are formed, so that the guide effect on the rack is achieved, the rack is ensured to move downwards along the vertical direction, and the cutter is prevented from being deviated.
Further, the first gear and the second gear are straight gears.
The beneficial effects are that: according to the technical scheme, the spur gears are used for meshing, so that the transmission efficiency of the gears is improved.
Further, the transmission mechanism comprises a rotary table, the rotary table is coaxially and fixedly connected to one end of the supporting rod, far away from the spreading roller, a connecting rod is hinged to the rotary table, and one end of the connecting rod, far away from the rotary table, is hinged to the cutting knife.
The beneficial effects are that: according to the technical scheme, the hinged relation among the rotary table, the connecting rod and the cutting knife is utilized to form a crank sliding block mechanism, the rotary table is driven to rotate in the process of rotating the cleaning roller, the cutting knife is driven to vertically move downwards through the connecting rod in the process of rotating the rotary table, and finally the technical effect that the cutting knife vertically cuts the waterproof film downwards is achieved.
Further, the support rod can freely stretch out and draw back along the axial direction of the support rod, and the coaxial fixed connection inside the support rod can enable the compression spring of the axial free stretch out and draw back of the support rod.
The beneficial effects are that: this technical scheme utilizes the pressure spring and then realizes the free flexible function of bracing piece to realize can receiving the extrusion and shrink when the cleaning roller runs into lower reinforcing bar barrier at the in-process of marcing, avoid the cleaning roller to receive the condition emergence that lower barrier hinders unable forward.
Further, the inner wall of the bearing box is fixedly welded with a charging box, the spreading roller is rotationally connected to the inner wall of the charging box, and a discharging hole is formed in the side wall of the charging box.
The beneficial effects are that: according to the technical scheme, the charging box is additionally arranged in the bearing box, so that a user can conveniently replace the waterproof film on the spreading roller, and meanwhile, the waterproof film storage and protection function is achieved.
Further, a guide plate is welded and fixed on one side, close to the discharge hole, of the bottom of the charging box.
The beneficial effects are that: according to the technical scheme, the bottom of the charging box is additionally provided with the material guide plate so as to realize the function of guiding the spreading direction of the waterproof film.
Further, an opening is formed in the top of the charging box, and a blocking cover for shielding the opening is hinged to the top of the charging box.
The beneficial effects are that: according to the technical scheme, the opening and the cover plate are additionally arranged at the top of the charging box, so that a user can conveniently replace the spreading roller.
The second object of the present application is to provide a bridge expansion joint repairing method, which uses the bridge expansion joint repairing device, comprising the following steps:
s1, slitting, namely slitting the damaged expansion joint structure to be repaired until the steel bar structure in the expansion joint is exposed outside;
s2, repairing, namely replacing or welding and reinforcing the damaged reinforcing steel bars;
s3, cleaning and paving a membrane, placing the bridge expansion joint repairing device on an expansion joint for moving, and covering the expansion joint of the bridge with a waterproof membrane by using the bridge expansion joint repairing device;
s4, pouring concrete, pouring the concrete in the expansion joint, and vibrating the concrete in the expansion joint;
and S5, maintaining, and standing the poured expansion joint for at least 7 days.
Drawings
FIG. 1 is a side sectional view of a bridge expansion joint repairing apparatus according to an embodiment of the present application in an operating state;
FIG. 2 is a front view of a bridge expansion joint repairing apparatus according to a first embodiment of the present application;
FIG. 3 is a side sectional view of a bridge expansion joint repair device according to a second embodiment of the present application;
fig. 4 is a side sectional view of a bridge expansion joint repairing apparatus according to a third embodiment of the present application in an operating state.
Detailed Description
The following is a further detailed description of the embodiments:
reference numerals in the drawings of the specification include: the device comprises a bearing box 1, a travelling wheel 2, a crawler belt 3, a base 4, a first mechanical arm 5, a second mechanical arm 6, a mechanical claw 7, a first cylinder 8, a second cylinder 9, a third cylinder 10, a first straight gear 11, a second straight gear 12, a cleaning roller 13, a supporting rod 14, a guide box 15, a transmission bar 16, a spreading roller 17, a guide plate 18, a cover plate 19, a waterproof membrane 20, a cutting knife 21, a rack 22, an expansion joint 23, a turntable 24, a connecting rod 25, a tire 26, a hydraulic expansion cylinder 27 and a rubber tube 28.
Example 1
Substantially as shown in fig. 1 and 2: a bridge expansion joint repairing device and a repairing method thereof comprise a frame, wherein a bearing box 1 is welded and fixed on the frame. The opposite sides of the bearing box 1 are respectively provided with a travelling mechanism, each travelling mechanism comprises four travelling wheels 2, each travelling wheel 2 is respectively and rotatably connected to the side wall of the bearing box 1, one crawler belt 3 is matched with the outer sides of the four travelling wheels 2, and a driving motor for driving the travelling wheels 2 to rotate is fixedly arranged in the bearing box 1 through internal threads.
The top of bearing box 1 is equipped with fixture, and fixture includes base 4, and the top rotation of base 4 is connected with first arm 5, and the bolt fastening has the first cylinder 8 that is used for driving first arm 5 pivoted on the base 4. One end of the first mechanical arm 5 far away from the base 4 is rotationally connected with a second mechanical arm 6, and a second cylinder 9 for driving the second mechanical arm 6 to rotate is fixed on the first mechanical arm 5 through bolts. The second mechanical arm 6 is far away from the mechanical claw 7 at one end of the first mechanical arm 5, and a third cylinder 10 for driving the mechanical claw 7 to clamp is fixed on the second mechanical arm 6 through bolts.
The inner wall of the bearing box 1 is rotationally connected with a first straight gear 11, a first pin shaft is fixedly connected with the first straight gear 11 in a coaxial key way, a supporting rod 14 is fixedly connected with the first pin shaft in a coaxial key way, and the supporting rod 14 can freely stretch along the axial direction. The support rod 14 is coaxially provided with a compression spring capable of enabling the support rod 14 to axially and freely stretch. The bottom of the carrying case 1 is provided with a notch, and one end of the supporting rod 14 away from the first straight gear 11 extends below the carrying case 1. The end of the supporting rod 14 far away from the first straight gear 11 is fixedly connected with a second pin shaft in a coaxial key way, and the cleaning roller 13 is fixedly connected with the second pin shaft in a coaxial key way. The cleaning roller 13 is fixedly connected with a servo motor coaxially, and the servo motor is used for driving the cleaning roller 13 to rotate. The carrying case 1 is provided with a movable space for the supporting rod 14 to rotate circumferentially around the top end as the center of a circle.
The inner wall of the carrying case 1 is rotatably connected with a second spur gear 12, and the second spur gear 12 is meshed with one side of the adjacent first spur gear 11. The inner wall of the bearing box 1 is also fixedly provided with a guide box 15 in a threaded manner, a guide groove is vertically formed in the guide box 15, a transmission bar 16 is slidably connected in the guide groove, a rack 22 is formed on the right side of the transmission bar 16, and the rack 22 is meshed with the left side of the first straight gear 11. The bottom end of the transmission bar 16 is fixedly welded with a cutting knife 21, and the cutting edge of the cutting knife 21 faces to the right lower side.
A spreading mechanism is also arranged in the carrying case 1. The spreading mechanism comprises a charging box which is welded and fixed on the inner wall of the bearing box 1. The top of the charging box is provided with an opening, and the top of the charging box is hinged with a blocking cover for shielding the opening. The inside of the charging box is rotatably connected with a spreading roller 17, and a waterproof film 20 is wound on the spreading roller 17. The left side of the charging box is provided with a discharge hole which can discharge the waterproof membrane 20, and one side of the bottom of the charging box, which is close to the discharge hole, is fixedly welded with a guide plate 18.
A bridge expansion joint repairing method, which uses the bridge expansion joint repairing device, comprises the following steps:
s1, slitting, namely slitting the damaged expansion joint structure to be repaired until the steel bar structure in the expansion joint is exposed outside;
s2, repairing, namely replacing or welding and reinforcing the damaged reinforcing steel bars;
s3, cleaning and paving a membrane, placing the bridge expansion joint repairing device on an expansion joint for moving, and covering the expansion joint of the bridge with a waterproof membrane by using the bridge expansion joint repairing device;
s4, pouring concrete, pouring the concrete in the expansion joint, and vibrating the concrete in the expansion joint;
and S5, maintaining, and standing the poured expansion joint for at least 7 days.
The method for implementing the bridge expansion joint repairing device comprises the following steps: in the process of using the bridge expansion joint repairing device, first, a user places the bridge expansion joint 23 repairing auxiliary device right above one end of the expansion joint 23, and places the cleaning roller inside the expansion joint 23. The operator then pulls the waterproofing membrane 20 out of the discharge port of the charging box and fixes the end of the waterproofing membrane 20 to the tip of the expansion joint 23. Then, an operator starts a driving motor, as shown in fig. 1, the travelling wheel 2 drives the crawler belt 3 to rotate under the action of the driving motor, and further the carrying case 1 moves from left to right. And simultaneously, the servo motor is started, so that the high-speed rotation of the cleaning roller 13 is realized.
In the process of moving the carrying case 1, an operator further controls the movement of the first mechanical arm 5, the second mechanical arm 6 and the mechanical claw 7 through the first air cylinder 8, the second air cylinder 9 and the third air cylinder 10, so as to achieve the effect of clamping the larger foreign matters in the expansion joint 23 by using the mechanical claw 7.
In the process of moving the carrying case 1, the cleaning roller 13 contacts with the steel bars inside the expansion joint 23, so that the cleaning operation inside the expansion joint 23 is realized. As the carrying case 1 moves horizontally rightward, the cleaning roller 13 can continuously clean the inside of the expansion joint 23. The cleaning roller 13 can be extruded and contracted when encountering lower steel bar barriers in the travelling process, so that the situation that the cleaning roller 13 cannot advance due to the lower barriers is avoided when passing through the barriers. The supporting rod 14 is reset under the action of the pressure spring after passing through the obstacle, and then the inside of the expansion joint 23 is continuously cleaned.
Finally, when the carrying case 1 moves to the tail end of the expansion joint 23, the cleaning roller 13 below the carrying case 1 abuts against the side wall of the expansion joint 23, and as the carrying case 1 continues to move forwards, the cleaning roller 13 rotates circumferentially with the carrying case 1 through the supporting rod 14 under the acting force of the side wall of the expansion joint 23 until the cleaning roller 13 rotates to be level with the top end of the expansion joint 23, so that the cleaning roller 13 is separated from the expansion joint 23. In the process, the first straight gear 11 is driven to rotate, and the first straight gear 11 rotates to drive the second straight gear 12 to rotate, so that the purpose of converting the rotation direction is realized. The second spur gear 12 rotates to drive the rack 22 on the cutter 21 to move vertically downwards along the guide groove in the guide box 15, so that the cutter 21 moves vertically downwards. Along with the downward movement process of the cutter 21, the cutter 21 cuts off the waterproof film 20 extending directly below, so as to achieve the technical effect of automatically cutting the waterproof film 20 after the waterproof film 20 is laid.
Example two
The difference between this embodiment and the first embodiment is that, as shown in fig. 3, the running mechanism includes four tires 26, the four tires 26 are respectively rotatably connected to two opposite side walls of the carrying case 1, and a driving motor for driving the tires 26 to rotate is fixed in the carrying case 1.
The transmission mechanism comprises a rotary table 24, the rotary table 24 is coaxially and fixedly connected to the top end of the supporting rod 14 in a key way, a connecting rod 25 is hinged to the eccentric position of the side wall of the rotary table 24, and the left end of the connecting rod 25 is hinged to the transmission strip 16 at the top of the cutting knife 21.
The specific implementation process comprises the following steps: during the movement of the carrying case 1, the driving motor drives the tire 26 to rotate, thereby driving the carrying case 1 to advance.
Finally, when the carrying case 1 moves to the tail end of the expansion joint 23, the cleaning roller 13 below the carrying case 1 abuts against the side wall of the expansion joint 23, and as the carrying case 1 continues to move forwards, the cleaning roller 13 rotates circumferentially with the carrying case 1 through the supporting rod 14 under the acting force of the side wall of the expansion joint 23 until the cleaning roller 13 rotates to be level with the top end of the expansion joint 23, so that the cleaning roller 13 is separated from the expansion joint 23. The turntable 24 is driven to rotate during rotation of the support bar 14. Because the hinged relationship among the turntable 24, the connecting rod 25 and the cutter 21 forms a crank-slider mechanism, the turntable 24 rotates and drives the cutter 21 to vertically move downwards by the connecting rod 25, so that the cutter 21 vertically moves downwards. As the cutter 21 moves downward, the cutter 21 cuts the waterproof film 20 extending directly below.
Example III
The difference between this embodiment and the first embodiment is that, as shown in fig. 4, a hydraulic chamber is further provided in the sliding portion of the support rod 14, and the hydraulic chamber is filled with a pressure fluid. The free expansion and contraction of the support rod 14 enables the volume of the hydraulic chamber to be freely changed. The carriage 1 is bolted to the left side of the cutter 21 with a hydraulic telescopic cylinder 27. The telescopic end of the hydraulic telescopic cylinder 27 is vertically telescopic toward the right lower side. The free end of the hydraulic telescopic cylinder 27 is screwed with an extrusion plate.
A rubber tube 28 is communicated between the support rod 14 and the hydraulic telescopic cylinder 27, and the rubber tube 28 is used for communicating a hydraulic cavity inside the support rod 14 with the hydraulic telescopic cylinder 27.
The specific implementation process comprises the following steps: during the movement along with the carrying case 1, the supporting bar 14 is vertically extended and contracted by continuously encountering the reinforcing bars inside the expansion joint 23. Each time the supporting rod 14 contracts, the hydraulic cavity inside the supporting rod 14 is extruded, and the extruded fracturing fluid enters the hydraulic telescopic cylinder 27 through the rubber tube 28, so that the hydraulic telescopic cylinder 27 is ejected. The hydraulic telescopic cylinder 27 vertically and downwards ejects the extrusion plate, so that the effect of extruding and paving the waterproof membrane 20 is finally achieved, and the paved waterproof membrane 20 has a more smooth technical effect.
The foregoing is merely exemplary embodiments of the present application, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present application, and these should also be considered as the scope of the present application, which does not affect the effect of the implementation of the present application and the utility of the patent. The protection scope of the present application is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (9)
1. The utility model provides a bridge expansion joint prosthetic devices, includes the case that bears, bear and be equipped with running gear on the case, its characterized in that:
the device also comprises a spreading mechanism and a cleaning mechanism;
the spreading mechanism comprises a spreading roller which is rotationally connected to the inner wall of the bearing box;
the cleaning mechanism comprises a supporting rod, one end of the supporting rod is rotationally connected to the side wall of the bearing box, a transmission mechanism is coaxially rotationally connected to the rotational connection part of the supporting rod and the bearing box, a cutting knife is vertically and slidingly connected to the inside of the bearing box, and the cutting knife is positioned at one side close to the spreading roller;
the transmission mechanism comprises a first gear and a second gear, the first gear is coaxially and fixedly connected with one end of the supporting rod, which is far away from the spreading roller, the second gear is meshed with the first gear, one side of the cutting knife is provided with a rack, and the rack is meshed with the second gear;
the cutting knife is positioned above the discharging direction of the spreading roller; the other end of the supporting rod is provided with a cleaning roller; the cleaning roller is positioned below the bearing box;
the sliding inside of the support rod is also provided with a hydraulic cavity filled with pressure liquid; the free expansion and contraction of the support rods can enable the volume of the hydraulic cavity to be freely changed; the bearing box is fixedly provided with a hydraulic telescopic cylinder on the left side of the cutting knife through bolts; the telescopic end of the hydraulic telescopic cylinder vertically stretches towards the right lower side;
the free end of the hydraulic telescopic cylinder is fixedly provided with an extrusion plate through threads; a rubber tube is communicated between the support rod and the hydraulic telescopic cylinder, and the rubber tube is used for communicating a hydraulic cavity inside the support rod with the hydraulic telescopic cylinder.
2. The bridge expansion joint repairing device according to claim 1, wherein: the inner wall fixedly connected with guide box of bearing box, the guide box inner wall is opened there is the guide slot, the vertical sliding connection of rack in the guide slot.
3. The bridge expansion joint repairing device according to claim 2, wherein: the first gear and the second gear are straight gears.
4. The bridge expansion joint repairing device according to claim 1, wherein: the transmission mechanism comprises a rotary table, the rotary table is coaxially and fixedly connected to one end of the supporting rod, far away from the spreading roller, a connecting rod is hinged to the rotary table, and one end of the connecting rod, far away from the rotary table, is hinged to the cutting knife.
5. The bridge expansion joint repairing device according to claim 4, wherein: the support rod can freely stretch out and draw back along the axial direction of the support rod, and the coaxial fixed connection inside the support rod can enable the compression spring of the axial free stretch out and draw back of the support rod.
6. The bridge expansion joint repairing device according to claim 1, wherein: the inner wall of the bearing box is fixedly welded with a charging box, the spreading roller is rotationally connected to the inner wall of the charging box, and a discharging hole is formed in the side wall of the charging box.
7. The bridge expansion joint repairing device according to claim 6, wherein: and one side, close to the discharge hole, of the bottom of the charging box is fixedly welded with a guide plate.
8. The bridge expansion joint repairing device according to claim 7, wherein: the top of the charging box is provided with an opening, and the top of the charging box is hinged with a blocking cover for shielding the opening.
9. A bridge expansion joint repairing method for a bridge expansion joint repairing device according to any one of claims 1 to 8, comprising the steps of:
s1, slitting, namely slitting the damaged expansion joint structure to be repaired until the steel bar structure in the expansion joint is exposed outside;
s2, repairing, namely replacing or welding and reinforcing the damaged reinforcing steel bars;
s3, cleaning and paving a membrane, placing the bridge expansion joint repairing device on an expansion joint for moving, and covering the expansion joint of the bridge with a waterproof membrane by using the bridge expansion joint repairing device;
s4, pouring concrete, pouring the concrete in the expansion joint, and vibrating the concrete in the expansion joint;
and S5, maintaining, and standing the poured expansion joint for at least 7 days.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210324448.3A CN114892544B (en) | 2022-03-29 | 2022-03-29 | Bridge expansion joint repairing device and repairing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210324448.3A CN114892544B (en) | 2022-03-29 | 2022-03-29 | Bridge expansion joint repairing device and repairing method thereof |
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| CN114892544A (en) | 2022-08-12 |
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