Spray curing device and spray curing method for fish-belly cast-in-place box girder
By designing the spray maintenance device of fish belly cast-in-place box girders, the water flow is collected and discharged using the flow plate, deflection shaft, flow inclined surface, abutment components and bonding blocks, the problem of water flow accumulation at the contact edge of the box girder and the base is solved, ensuring that the bottom of the box girder maintains humidity and extending the service life of the box girder.
Patent Information
- Application Number
- CN202510077751.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2025-04-04
AI Technical Summary
When the existing spray maintenance technology sprays a fish belly box girder, water flows along the arc surface and accumulates on the contact edge of the box girder and the base, resulting in damage to the box girder and unable to effectively maintain the humidity between the box girder and the base.
A spray maintenance device for fish belly cast-in-place box girders is designed, including a flow plate, a deflection shaft, a flow incline, abutment assembly and a bonding block. Through these components, water flow is collected and discharged, ensuring that the water flow flows along the arc surface to the base, and accumulates on the flow plate to ensure that the bottom of the box girder remains humidity.
It effectively solves the problem of water flow accumulation at the edge of the box girder and the base, ensures that the bottom of the box girder maintains humidity, and extends the service life of the box girder.
Smart Images
Figure CN119754175A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of box girder spraying and curing, and in particular to a spraying and curing device and a spraying and curing method for a fish-belly type cast-in-place box girder. Background Art
[0002] Box girder spray maintenance refers to spraying water on the surface of the box girder in summer to maintain the moisture of the box girder and prevent shrinkage and cracking on the surface.
[0003] However, in the existing spray curing, when spraying the fish-belly box girder, the water on its surface will flow along the curved surface, causing it to accumulate at the edge where the fish-belly box girder contacts the base, causing an impact on the box girder. At the same time, it is also impossible to effectively maintain the humidity of the ground where the fish-belly box girder contacts the base, making the spray curing of the fish-belly box girder more troublesome. Summary of the invention
[0004] The purpose of the present invention is to provide a spray curing device and a spray curing method for a fish-belly cast-in-place box girder, which solves the problem that when spray curing the fish-belly box girder, due to the arc-shaped setting of its bottom, the water will flow along the arc and accumulate between the contact edge of the fish-belly box girder and the base, and at the same time, it is impossible to spray and cure the bottom surface of the fish-belly box girder that is in contact with the base.
[0005] The present invention is achieved through the following technical solutions:
[0006] The present invention provides a spraying maintenance device for a fish-belly cast-in-place box girder, comprising a box girder, a displacement frame connected to the top of the box girder, a spray frame connected to the top of the displacement frame, a water storage tank arranged on one side of the displacement frame, a spray head arranged on the bottom of the spray frame, a base connected to the bottom of the box girder, a drainage trough arranged on the top of the base, a flow plate connected to the middle of the drainage trough, a deflection axis connected to one end of the flow plate, a flow slope arranged at one end of the flow plate away from the deflection axis, a fitting opening arranged at one end of the flow slope, a supporting assembly arranged on one side of the fitting opening, the supporting assembly swings along one side of the axis, a fitting block arranged at the bottom of the middle of the drainage trough, and the top of the fitting block cooperates with the fitting opening.
[0007] Preferably, the spray rack comprises a displacement block and a transmission screw, the displacement block is arranged at the bottom of the spray rack, and the transmission screw is arranged through the middle of the displacement block.
[0008] Preferably, two ends of the transmission screw are rotatably connected to two ends of the middle portion of the displacement frame, and one end of the transmission screw is transmission-connected to a motor outside the displacement frame.
[0009] Preferably, the transmission screw matches the inner wall thread of the through hole of the displacement block.
[0010] Preferably, the water storage tank is connected to the pipeline in the spray rack.
[0011] Preferably, the flow plate is connected to both sides of the middle of the drainage groove through a deflection shaft at one end, and torsion springs are provided at both ends of the deflection shaft.
[0012] Preferably, the flow slope is arranged at one end opposite to the two flow plates, and the flow slope is arranged as a telescopic structure.
[0013] Preferably, the abutting assembly comprises a abutting block and a deflecting groove, the deflecting groove is arranged on one end surface of the flow slope, and the abutting block is hinged in the deflecting groove.
[0014] Preferably, the bonding block includes a shrinkage groove and a limiting block, the shrinkage groove is arranged on both sides of the bonding block, the limiting block is arranged in the middle of the shrinkage groove, one end of the limiting block is connected to the shrinkage groove through a spring, and one end of the limiting block is a semi-spherical shape protruding from the surface of the bonding block.
[0015] The technical solution of the present invention has at least the following advantages and beneficial effects:
[0016] 1. The flow plate arranged in the device can collect the water accumulated on the base along the curved surface when spraying the fish-belly box girder, and then let the water flow on the flow plate, so as to contact and moisturize the bottom of the box girder that fits the base, and also moisturize and maintain the bottom surface of the box girder.
[0017] 2. The device is also provided with a supporting component, through which when a certain amount of water is accumulated on the flow plate, the water flow can be discharged by deflecting it through gravity, so as to prevent the accumulated water flow from always contacting the box beam. At the same time, the elastic contraction of the supporting component can hinder the resetting speed when it is reset, so that the water flow on the flow plate can be fully discharged without any residual accumulation on the flow plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.
[0019] Figure 2 It is a schematic diagram of the side cross-sectional structure of the displacement rack and the spray rack of the present invention.
[0020] Figure 3 It is a schematic diagram of the side cross-sectional structure of the base of the present invention.
[0021] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure at point A in the middle.
[0022] Figure 5 It is a schematic diagram of the local cross-sectional structure of the inclined surface of the present invention.
[0023] Figure 6 For the present invention Figure 5Schematic diagram of the enlarged structure at point B in the middle.
[0024] Figure markings: 1-box beam, 2-displacement frame, 201-spray frame, 2011-displacement block, 2012-transmission screw, 202-water tank, 203-spray head, 3-base, 301-drainage groove, 3011-inclined surface, 3012-fitting block, 3013-contraction groove, 3014-limiting block, 302-flow plate, 3021-deflection axis, 3022-flow inclined surface, 3023-fitting opening, 3024-resistance block, 3025-deflection groove. DETAILED DESCRIPTION
[0025] Combine the following Figures 1 to 5 The present invention is described in detail.
[0026] A spray curing device for a fish-belly cast-in-place box girder comprises a box girder 1, a displacement frame 2 is connected to the top of the box girder 1, a spray frame 201 is connected to the top of the displacement frame 2, a water storage tank 202 is arranged on one side of the displacement frame 2, a spray head 203 is arranged on the bottom of the spray frame 201, a base 3 is connected to the bottom of the box girder 1, a drainage groove 301 is arranged on the top of the base 3, a flow plate 302 is connected to the middle of the drainage groove 301, a deflection axis 3021 is connected to one end of the flow plate 302, a flow slope 3022 is arranged at one end of the flow slope 3022 away from the deflection axis 3021, a fitting opening 3023 is arranged at one end of the flow slope 3022, and a fitting opening 3023 is arranged on one side of the fitting opening 3023. The leaning component swings along one side of the axis, a fitting block 3012 is provided at the middle bottom of the drainage groove 301, and the top of the fitting block 3012 cooperates with the fitting opening 3023. The spray rack 201 includes a displacement block 2011 and a transmission screw 2012. The displacement block 2011 is arranged at the bottom of the spray rack 201, and the transmission screw 2012 is arranged through the middle of the displacement block 2011. The two ends of the transmission screw 2012 are rotatably connected to the two ends of the middle part of the displacement rack 2, and one end of the transmission screw 2012 is connected to the motor outside the displacement rack 2. The transmission screw 2012 matches the inner wall thread of the through hole of the displacement block 2011, and the water tank 202 is connected to the pipeline in the spray rack 201.
[0027] First, after covering the surface of the box girder 1 with burlap or geotextile, place the displacement frame 2 on the top of the box girder 1, and then use the booster pump in the water tank 202 to pump water out and flow it into the pipe of the spray frame 201, and then spray the water through the spray head 203 to spray and maintain the surface of the box girder 1. At the same time, during the spraying process, the transmission screw 2012 is driven by the motor to rotate to drive the displacement block 2011 connected to the spray frame 201 to move, so that the spray frame 201 can move on the surface of the box girder 1 to spray various areas.
[0028] Furthermore, the flow plate 302 is connected to both sides of the middle part of the drainage groove 301 through a deflection shaft 3021 at one end, and torsion springs are arranged at both ends of the deflection shaft 3021. The flow slope 3022 is arranged at the opposite end of the two flow plates 302, and the flow slope 3022 is a telescopic structure. The abutment component includes a stop block 3024 and a deflection groove 3025. The deflection groove 3025 is arranged on one end surface of the flow slope 3022, and the stop block 3024 is hinged in the deflection groove 3025. The fitting block 3012 includes a contraction groove 3013 and a limiting block 3014. The contraction groove 3013 is arranged on both sides of the fitting block 2013, and the limiting block 3014 is arranged in the middle of the contraction groove 3013. One end of the limiting block 3014 is connected to the contraction groove 3013 through a spring, and one end of the limiting block 3014 is a semi-spherical shape protruding from the surface of the fitting block 3012.
[0029] Then, when the spray rack 201 is spraying, if it is a fish-belly box girder 1, due to the arc design of its bottom, when spraying, the water flow will flow along the arc to the contact edge of the base 3 and the box girder 1, and then the flowing water will be collected through several drainage grooves 301 on the top of the base 3, and flow along the inclined surface 3011 to the flow plate 302, and then the water flow will accumulate and flow on the flow plate 302, so as to contact the bottom of the box girder 1 that is in contact with the base 3, thereby moisturizing and maintaining the bottom of the box girder 1.
[0030] When the water flows continuously onto the flow plate 302, the water flows continuously into the "V"-shaped groove formed by the inclined surfaces 3011 at one end of the two flow plates 302. When a certain amount of water is accumulated on the inclined surface 3011, it accumulates at one end, so that the inclined surface 3011 at one end of the flow plate 302 is forced to move downward due to the pressure of the weight, thereby deflecting through the deflection axis 3021 to tilt the flow plate 302 to accelerate the flow of water and avoid the water accumulating on the flow plate 302, resulting in the inability to drain.
[0031] A fitting opening 3023 is provided on one side where the two inclined surfaces 3011 fit together, and the fitting opening 3023 allows the inclined surface 3011 to be partially fitted and fitted in the portion of the fitting block 3012 near the top, so that when the inclined surface 3011 is deflected and tilted, it will move along the surface of the fitting block 3012 through the fitting opening 3023, and during the movement, the stop block 3024 connected to the deflection groove on the fitting opening 3023 will fit to the limiting block 3014 and move, and because the stop block When 3024 moves downward, the lower part first contacts the limiting block 3014, so that the stop block 3024 will be compressed to shrink toward the deflection groove 3025, so that the fitting opening 3023 can be smoothly displaced along the fitting block 3012, so that the two mutually fitting inclined surfaces 3011 will be separated, allowing the water to flow into the drainage groove 301 for discharge, and the inclined surface 3011 is set for the two parts to be telescopically engaged, and the extension of the inclined surface 3011 during deflection is controlled by gravity through the inclination angle.
[0032] After a certain amount of accumulated water is discharged, the flow plate 302 will be reset and re-fitted due to the torsion spring of the deflection shaft 3021. During the reset process, the stop block 3024 will contact the limiting block 3014 from the top. Since the bottom of the stop block 3024 protrudes from the surface, the protruding part will abut against the protruding part of the limiting block 3014. Then, due to the continuous discharge of water, the torsion spring reset force of the deflection shaft 3021 increases, which will force the limiting block 3014 to shrink toward the shrinkage groove 3013 to allow the stop block 3024 to pass. Because of the obstruction of the limiting block 3014, the reset process of the flow plate 302 is slowed down, which makes the fitting and closing time longer, so that there is sufficient time to discharge the accumulated water, avoiding the situation where the closure is completed without discharge due to excessive water flow, so that part of the increased water flow will remain on the flow plate 302, resulting in increased wetness at the bottom of the box girder 1, which is easy to cause its concrete to be affected.
[0033] The following is a specific implementation process of the present invention. First, after the surface of the box girder 1 is covered with burlap or geotextile, a displacement frame 2 is placed on the top of the box girder 1. Then, water is pumped out through the booster pump in the water storage tank 202 and flows into the pipe of the spray frame 201. Then, the water is sprayed out through the spray head 203 to spray and maintain the surface of the box girder 1. At the same time, during the spraying process, the transmission screw 2012 is driven by the motor to rotate to drive the displacement block 2011 connected to the spray frame 201 to move, so that the spray frame 201 can move on the surface of the box girder 1 to spray various areas. Then, when the spray frame 201 is spraying, if it is a fish belly type box girder 1, the arc design at the bottom will cause it to be sprayed. When spraying, the water will flow along the arc to the contact edge of the base 3 and the box beam 1, and then the flowing water will be collected through the several drainage grooves 301 on the top of the base 3, so that it will flow along the inclined surface 3011 to the flow plate 302, and then the water will accumulate and flow along the flow plate 302, so as to contact the bottom of the box beam 1 that fits the base 3, so as to moisturize and maintain the bottom of the box beam 1. When the water flows continuously onto the flow plate 302, because the water flows continuously, it will flow into the "V"-shaped groove formed by the inclined surfaces 3011 at one end of the two flow plates 302. When a certain amount of water is accumulated in the inclined surface 3011, it will accumulate at one end, so that the weight pressure will force one end of the flow plate 302 to The inclined surface 3011 will move downward, thereby deflecting through the deflection axis 3021 to tilt the flow plate 302 to accelerate the flow of water and prevent the water from accumulating on the flow plate 302, resulting in the inability to drain. A fitting opening 3023 is provided on the side where the two inclined surfaces 3011 are in contact with each other, and the fitting opening 3023 can allow the inclined surface 3011 to be partially fitted and fitted in the part close to the top of the fitting block 3012, so that when the inclined surface 3011 is deflected and tilted, it will move along the surface of the fitting block 3012 through the fitting opening 3023, and in the process of moving, the stop block 3024 connected to the deflection groove on the fitting opening 3023 will fit to the limiting block 3014 and move, and because the stop block 30 When the water plate 3024 moves downward, the lower part first contacts the limiting block 3014, so that the stop block 3024 will be compressed to shrink toward the deflection groove 3025, so that the fitting opening 3023 can be smoothly displaced along the fitting block 3012, so that the two mutually fitting inclined surfaces 3011 will separate, allowing the water flow to flow into the drainage groove 301 for discharge. After a certain amount of accumulated water flow is discharged, the flow plate 302 will be reset and re-fitted due to the torsion spring of the deflection shaft 3021. In the reset process, the stop block 3024 will contact the limiting block 3014 from the top, and because the bottom of the stop block 3024 is protruding on the surface, the protruding part will abut against the protruding part of the limiting block 3014, and then because the water flow is continuously discharged,The increase in the torsion spring return force of the deflection shaft 3021 forces the extrusion limit block 3014 to shrink toward the shrinkage groove 3013 to allow the stop block 3024 to pass. Because of the obstruction of the limit block 3014, the return process of the flow plate 302 is slowed down, making the closing time longer, so that there is enough time to discharge the accumulated water flow, avoiding the situation where the closure is completed without discharge due to excessive water flow, so that part of the increased water flow will remain on the flow plate 302, resulting in an increase in the wetness of the bottom of the box beam 1, which is easy to affect its concrete.
Claims
1. A spray curing device for a fish-belly cast-in-place box girder, comprising a box girder (1), a displacement frame (2) connected to the top of the box girder (1), a spray frame (201) connected to the top of the displacement frame (2), a water storage tank (202) provided on one side of the displacement frame (2), a spray head (203) provided at the bottom of the spray frame (201), and a base (3) connected to the bottom of the box girder (1), characterized in that: The top of the base (3) is provided with a drainage groove (301), the middle of the drainage groove (301) is connected with a flow plate (302), one end of the flow plate (302) is connected with a deflection axis (3021), the end of the flow plate (302) away from the deflection axis (3021) is provided with a flow slope (3022), one end of the flow slope (3022) is provided with a fitting opening (3023), one side of the fitting opening (3023) is provided with a supporting component, the supporting component swings along one side of the axis, and the middle bottom of the drainage groove (301) is provided with a fitting block (3012), and the top of the fitting block (3012) cooperates with the fitting opening (3023).
2. According to the spray curing device of a fish-belly cast-in-place box girder according to claim 1, it is characterized in that the spray frame (201) includes a displacement block (2011) and a transmission screw (2012), the displacement block (2011) is arranged at the bottom of the spray frame (201), and the transmission screw (2012) is arranged through the middle of the displacement block (2011).
3. According to the spray curing device of a fish-belly cast-in-place box girder described in claim 2, its characteristics are as follows: the two ends of the transmission screw (2012) are rotatably connected to the two ends of the middle part of the displacement frame (2), and one end of the transmission screw (2012) is connected to the motor outside the displacement frame (2).
4. The spray curing device for a fish-belly cast-in-place box girder according to claim 2 is characterized in that the transmission screw (2012) matches the inner wall thread of the through hole of the displacement block (2011).
5. The spray curing device for a fish-belly cast-in-place box girder according to claim 1 is characterized in that the water storage tank (202) is connected to a pipeline in the spray rack (201).
6. According to a spray curing device for a fish-belly cast-in-place box girder as described in claim 1, its characteristics are as follows: the flow plate (302) is connected to both sides of the middle part of the drainage trough (301) through a deflection shaft (3021) at one end, and torsion springs are arranged at both ends of the deflection shaft (3021).
7. A spray curing device for a fish-belly cast-in-place box girder according to claim 1, characterized in that the flow slope (3022) is arranged at the opposite end of the two flow plates (302), and the flow slope (3022) is a telescopic structure.
8. A spray curing device for a fish-belly cast-in-place box girder according to claim 1, characterized in that the abutment assembly comprises a abutment block (3024) and a deflection groove (3025), the deflection groove (3025) being arranged on one end surface of the flow slope (3022), and the abutment block (3024) being hinged in the deflection groove (3025).
9. A spray curing device for a fish-belly cast-in-place box girder according to claim 1, characterized in that the fitting block (3012) comprises a shrinkage groove (3013) and a limiting block (3014), the shrinkage groove (3013) being arranged on both sides of the fitting block (2013), the limiting block (3014) being arranged in the middle of the shrinkage groove (3013), one end of the limiting block (3014) being connected to the shrinkage groove (3013) by a spring, and one end of the limiting block (3014) being in the shape of a semi-sphere protruding from the surface of the fitting block (3012).
10. A spray curing method for the spray curing device of the fish-belly cast-in-place box girder according to any one of claims 1 to 9, the steps of which are as follows; The first step is to trim and clean the surface of the box beam (1) to keep the surface of the box beam (1) clean and tidy, and spray a small amount of water while trimming to prevent concrete shrinkage and cracking; The second step is to cover the surface of the repaired box beam (1) with a layer of plastic film to maintain the moisture and wetness of the surface of the box beam (1); The third step is to cover the box girder (1) with burlap and geotextile after the initial setting, and then continue to spray water on the surface to carry out moisture maintenance; In the third step, when spraying water for maintenance, it is carried out through the spray rack (201). When the spray rack (201) sprays water, water will flow downward along the surface of the box beam and then flow onto the base (3). The water will be collected by the drainage groove in the base (3) and flow along the flow plate (302). The water will contact and moisturize the bottom surface of the box beam (1) that is in contact with the base (3). After the water accumulates to a certain amount, the flow plate (302) will deflect it to discharge it.