Automatic watering maintenance ventilation device in box girder and using method

Abstract

The invention provides an automatic watering maintenance ventilation device in a box girder and a using method, and the device comprises a control assembly which is used for controlling the operation state of the ventilation device; the water sprinkling assembly is movably arranged in the box girder and used for sprinkling water to the inner wall of the box girder; the ventilation assembly is arranged in the box girder and used for increasing the gas flow rate in the box girder; and the energy supply assembly is used for supplying energy to the water spraying assembly and the air exchange assembly. The device can be used for automatically and accurately watering and maintaining the cast-in-place box girder when a top plate of the cast-in-place box girder is not poured, the situation that the concrete quality is reduced due to insufficient watering is avoided, or the situation that road construction under the bridge is affected due to excessive watering is avoided; the device can also be used for carrying out watering maintenance on the inner wall of a cast-in-place box girder and a prefabricated box girder after a top plate is poured, and in the demolding and repairing period of the top plate, the temperature in the box chamber is reduced through the watering assembly and the ventilation assembly, the working environment of workers is improved, the working risk is reduced, and the construction efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of box girder construction, and in particular to an automatic sprinkling and curing and ventilation device inside a box girder and a using method thereof. Background Art

[0002] With the rapid development of cities, urban bridge projects are increasing day by day. To complete bridge construction efficiently and with high quality, it is necessary to grasp the technical key points during construction and take effective measures to solve the technical difficulties during construction.

[0003] Generally, municipal bridge construction often proceeds simultaneously with the construction of the road under the bridge. An important construction structure of municipal bridges is the box girder, which includes cast-in-place box girders and precast box girders. Both are made by pouring concrete, and during the setting period, it is necessary to sprinkle water for curing on time to ensure the setting quality of the concrete.

[0004] If the construction plan of cast-in-place box girders is adopted for municipal bridges, during the sprinkling and curing process of the cast-in-place box girders, due to inaccurate control of the water spraying amount by workers, problems such as insufficient water spraying or excessive water spraying are likely to occur. Insufficient water spraying will affect the concrete quality of the cast-in-place box girder, and excessive water spraying will affect the road construction under the bridge.

[0005] In addition, when pouring the box girder, usually after the bottom slab and side plates reach a certain strength, the top slab is then poured. During the period of removing the formwork and repairing the top slab, workers need to enter the box chamber (i.e., the inner cavity of the box girder) to carry out operations. In summer, the weather is hot, and the initial hydration heat of the concrete will dissipate outward, resulting in an increase in the temperature inside the box chamber. Workers inside the box chamber are extremely prone to heat stroke, which not only poses a high operation risk but also reduces the construction efficiency. Summary of the Invention

[0006] The purpose of the present invention is to provide an automatic sprinkling and curing and ventilation device inside a box girder and a using method thereof to solve the deficiencies in the above background art.

[0007] The technical solution of the present invention is: an automatic sprinkling and curing and ventilation device inside a box girder, which includes:

[0008] A control component for controlling the operating state of the ventilation device;

[0009] A sprinkling component movably disposed inside the box girder for sprinkling water on the inner wall of the box girder;

[0010] A ventilation component disposed inside the box girder for increasing the gas flow rate inside the box girder;

[0011] An energy supply component for supplying energy to the sprinkling component and the ventilation component.

[0012] Furthermore, the energy supply component includes a power source, moving wheels, a transmission module, and a transducer. The power source supplies power to the moving wheels and the sprinkling component to drive the sprinkling component to move or sprinkle water. The transducer is connected to the moving wheels through the transmission module and is used to convert the mechanical energy of the moving wheels into electrical energy for supplying to the ventilation component.

[0013] Furthermore, the transmission module includes a first gear, a transmission gear set, and a transmission chain. The first gear is coaxially and fixedly connected to the moving wheels. The moving wheels are arranged in the tracks inside the box girder and can move along the tracks. One set of the transmission gear sets is arranged at each of the two longitudinal ends of the tracks, and at least one set of the transmission gear sets is connected to the transducer. The transmission chain connects the two sets of the transmission gears and the first gear located therebetween.

[0014] Furthermore, the transmission gear set includes a second gear and a third gear coaxially and fixedly connected. The first gear and the two sets of the second gears are connected through the transmission chain. The third gear is connected to a fourth gear on the transducer. The radius of the first gear > the radius of the second gear, and the radius of the third gear > the radius of the fourth gear.

[0015] Furthermore, the transmission gear set is connected to the tracks through a mounting bracket, and the mounting height of the mounting bracket on the tracks is adjustable.

[0016] Furthermore, the power source includes a fixed power source and / or a mobile power source. The mobile power source includes a solar cell and / or a storage battery. The power source is connected to the moving wheels through a servo motor, and the servo motor is controlled by the control component to adjust the steering and speed of the moving wheels.

[0017] Furthermore, the sprinkling component includes a vehicle body, a mobile water tank, a spray water pump, a spray water pipe, and a nozzle. The vehicle body is connected to the moving wheels. The mobile water tank is arranged on the vehicle body. The spray water pipe is arranged on the vehicle body and its mounting height is adjustable. The nozzle is connected to the water outlet end of the spray water pipe and its mounting angle is adjustable. The spray water pump is used to pump the water in the mobile water tank to the nozzle. Fixed water tanks are respectively arranged at the two longitudinal ends of the tracks. A water replenishing pump and a water replenishing pipe for replenishing water to the mobile water tank are arranged on the fixed water tanks. The spray water pump and the water replenishing pump are respectively controlled by the control component.

[0018] Furthermore, a light sensor and a temperature sensor are arranged on the vehicle body. A liquid level sensor is arranged in the mobile water tank. The control component receives the signals of the light sensor, the temperature sensor, and the liquid level sensor to regulate the sprinkling gear of the sprinkling component.

[0019] Furthermore, a position sensor and a limit plate are configured on the outer side of the fixed water tank. The position sensor is connected to the control component and is used to detect the position of the vehicle body. An elastic buffer is configured on the vehicle body, and the elastic buffer can contact the limit plate as the vehicle body moves.

[0020] Furthermore, the ventilation component includes a plurality of ventilation fans, and the ventilation fans are electrically connected to the transducer. The transducer is a permanent magnet generator.

[0021] The technical solution of the present invention further includes: a usage method of the automatic sprinkler curing and ventilation device in the above box girder, which includes the steps:

[0022] Start the device, and the control component determines whether the device is located at the water replenishment and commutation position according to the position information detected by the position sensor, so as to determine whether it is necessary to change the steering of the moving wheels;

[0023] The control component determines whether the water level in the moving water tank is lower than the lower limit according to the liquid level information detected by the liquid level sensor, so as to determine whether it is necessary to replenish water to the moving water tank;

[0024] The control component determines whether there is light in the working environment of the device according to the light information detected by the light sensor, so as to adjust the sprinkling gear of the sprinkling component;

[0025] The control component determines the temperature of the working environment of the device according to the temperature information detected by the temperature sensor, so as to adjust the sprinkling gear of the sprinkling component.

[0026] The beneficial effects of the present invention are as follows: Through the regulation of the control component, this device can be used to automatically and accurately sprinkle and cure the cast-in-place box girder when the top slab of the cast-in-place box girder has not been poured, avoiding insufficient sprinkling and reducing the quality of concrete, or avoiding excessive sprinkling and affecting the construction of the road under the bridge. It can also be used to sprinkle and cure the inner wall of the box girder after the top slab of the cast-in-place box girder or precast box girder is poured, and during the period of form removal and repair of the top slab, use the sprinkling component and ventilation component to reduce the temperature in the box chamber, improve the working environment of workers, reduce the operation risk and improve the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is the overall structure diagram of the embodiment of the present invention;

[0028] Figure 2 is the structure diagram of the sprinkling component in the embodiment of the present invention;

[0029] Figure 3 is the structure diagram of the power supply component in the embodiment of the present invention;

[0030] Figure 4 is the side view of the connection between the power supply component and the track in the embodiment of the present invention;

[0031] Figure 5 It is a structural diagram of the track and the mounting bracket in the embodiment of the present invention;

[0032] Figure 6 It is a logic control flow chart of the control component in the embodiment of the present invention.

[0033] In the figure:

[0034] 1. Control component;

[0035] 2. Sprinkling component; 2-1. Vehicle body; 2-2. Mobile water tank; 2-3. Spray water pump; 2-4. Spray water pipe; 2-5. Nozzle;

[0036] 3. Ventilation component; 3-1. Exhaust fan;

[0037] 4. Energy supply component; 4-1. Power supply; 4-2. Mobile wheel; 4-3. Transmission module; 4-31. First gear; 4-32. Second gear; 4-33. Third gear; 4-34. Fourth gear; 4-35. Transmission chain; 4-4. Transducer; 4-5. Servo motor;

[0038] 5. Mounting bracket; 5-1. First positioning hole; 5-2. First mounting hole;

[0039] 6. Track; 6-1. Second positioning hole; 6-2. Second mounting hole;

[0040] 7. Fixed water tank;

[0041] 8. Make-up water pump;

[0042] 9. Make-up water pipe;

[0043] 10. Light sensor;

[0044] 11. Temperature sensor;

[0045] 12. Liquid level sensor;

[0046] 13. Position sensor;

[0047] 14. Limit plate;

[0048] 15. Elastic buffer; Detailed implementation manners

[0049] The technical solutions of the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0050] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "top" and "bottom" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "set" and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0051] Referring to the attached Figures 1-6 , this embodiment provides an automatic sprinkler curing and ventilation device inside a box girder, which includes a control component 1, a sprinkler component 2, a ventilation component 3, and an energy supply component 4. The control component 1 can be constructed by an industrial control computer with PLC function, an industrial control computer, and related main board circuits, cables, etc. (which is prior art and will not be elaborated here), and is used to control the operating state of the ventilation device; the energy supply component 4 is used to supply energy to the sprinkler component 2 and the ventilation component 3; the sprinkler component 2 is movably disposed inside the box girder and is used to sprinkle water on the inner wall of the box girder; the ventilation component 3 is disposed inside the box girder and is used to increase the gas flow rate inside the box girder.

[0052] Through the regulation of the control component 1, the above device can be used to automatically and accurately sprinkle water for curing the cast-in-place box girder when the top slab of the cast-in-place box girder has not been poured, avoiding insufficient sprinkling and reducing the quality of concrete, or avoiding excessive sprinkling and affecting the construction of the road under the bridge; it can also be used to sprinkle water for curing the inner wall of the box girder after the top slab of the cast-in-place box girder or precast box girder has been poured, and during the period of form removal and repair of the top slab, use the sprinkler component 2 and the ventilation component 3 to reduce the temperature inside the box chamber, improve the working environment of workers, reduce the operation risk and improve the construction efficiency.

[0053] To ensure the orderly operation of sprinkling and ventilation, a track 6 is configured in this device. The track 6 is laid along the length direction of the box girder and can be configured by channel steel. When laying, the channel steel can be fixed to the bottom plate of the box girder through expansion bolts; the moving wheels 4-2 in the energy supply component 4 are disposed in the track 6, and the sprinkler component 2 is connected to the moving wheels 4-2 and is driven by the moving wheels 4-2 to move back and forth along the length direction of the track 6 to complete the sprinkling task.

[0054] Referring to the attached Figure 2, the sprinkler assembly 2 includes a vehicle body 2-1, a mobile water tank 2-2, a water spray pump 2-3, a water spray pipe 2-4 and a nozzle 2-5. The mobile wheels 4-2 are arranged at the bottom of the vehicle body 2-1. The mobile water tank 2-2 is arranged on the vehicle body 2-1. The water spray pipe 2-4 is arranged on the vehicle body 2-1 and its installation height is adjustable. The nozzle 2-5 is connected to the water outlet end of the water spray pipe 2-4 and its installation angle is adjustable. The water spray pump 2-3 is used to pump the water in the mobile water tank 2-2 to the nozzle 2-5; Fixed water tanks 7 are respectively arranged at the two long ends of the track 6. A water replenishing pump 8 and a water replenishing pipe 9 for replenishing water to the mobile water tank 2-2 are arranged on the fixed water tank 7. The water storage capacity of the fixed water tank 7 is greater than that of the mobile water tank 2-2, and the water volume in the fixed water tank 7 is checked and replenished by a special person every day; The water spray pump 2-3 and the water replenishing pump 8 are respectively controlled by the control assembly 1 to complete the tasks of spraying water on the inner wall of the chamber and replenishing water into the mobile water tank 2-2.

[0055] The adjustable installation height of the water spray pipe 2-4 and the adjustable installation angle of the nozzle 2-5 described above are both prior arts. Those skilled in the art can freely configure the models and installation methods of the water spray pipe 2-4 and the nozzle 2-5 according to actual needs, and will not be elaborated here. Of course, the length of the water spray pipe 2-4 itself can also be adjustable. The nozzle 2-5 can be rotatably connected to the water spray pipe 2-4. By changing the installation height, the length of itself and the installation angle of the nozzle 2-5 of the water spray pipe 2-4, the water spraying direction can be accurately adjusted to ensure uniform water spraying and meet the design requirements.

[0056] The model and installation method of the water replenishing pipe 9 can also be selected according to actual needs. To prevent it from being randomly wound and interfering with the operation of the sprinkler assembly 2, a flexible water pipe that can move with the sprinkler assembly 2 is not selected in this embodiment. Instead, a rigid water pipe fixed on the fixed water tank 7 is selected, such as an inverted L-shaped water pipe with a vertical end extending into the fixed water tank 7 and a horizontal end extending outside the fixed water tank 7. And a water inlet or a water inlet hopper and other structures corresponding to the position of the horizontal end of the water replenishing pipe 9 are arranged at the top of the mobile water tank 2-2. When the vehicle body 2-1 moves near the fixed water tank 7, the horizontal end of the water replenishing pipe 9 is just located above the mobile water tank 2-2. The control assembly 1 starts the water replenishing pump 8. The water in the fixed water tank 7 passes through the vertical end and the horizontal end of the water replenishing pipe 9 in sequence and then falls into the mobile water tank 2-2. After the liquid level sensor 12 detects that the mobile water tank 2-2 is full of water, the control assembly 1 shuts down the water replenishing pump 8.

[0057] The water spraying pump 2-3 is connected to the control component 1. The control component 1 can accurately regulate the water spraying amount of the nozzle 2-5 by controlling the operating power of the water spraying pump 2-3. The water spraying amount needs to be judged according to the water loss rate of the concrete and the remaining water amount in the movable water tank 2-2. Therefore, in this embodiment, a light sensor 10 and a temperature sensor 11 are configured on the vehicle body 2-1, and a liquid level sensor 12 is configured in the movable water tank 2-2. The control component 1 receives the signals of the light sensor 10, the temperature sensor 11 and the liquid level sensor 12 to regulate the water spraying gear of the water spraying component 2.

[0058] During implementation, the control component 1 first judges whether the inner wall of the box chamber is irradiated by the sun through the brightness information detected by the light sensor 10. If it is not irradiated by the sun (such as at night or when the top plate of the box girder has been poured), the water loss rate of the inner wall of the box chamber is relatively low, and the control component 1 should control the water spraying pump 2-3 to operate at the lowest gear power to ensure sufficient but not excessive water spraying; if it is irradiated by the sun, the water loss rate of the inner wall of the box chamber is relatively high. At this time, the control component 1 judges the current ambient temperature through the temperature information detected by the temperature sensor 11. The higher the ambient temperature, the control component 1 should control the water spraying pump 2-3 to operate at a higher gear power to ensure sufficient water spraying; at the same time, the liquid level sensor 12 continuously detects the remaining water amount in the movable water tank 2-2. When the remaining water amount is lower than the lower limit value, the control component 1 should control the water spraying pump 2-3 to operate at the lowest gear power to ensure that the vehicle body 2-1 can move to the fixed water tank 7 at one end of the track 6 for water replenishment, and the water spraying operation is not interrupted during this moving process.

[0059] The number of water spraying gears of the water spraying component 2 and the power of the water spraying pump 2-3 can be configured according to the actual volume of the device (especially including the water storage capacity of the movable water tank 2-2), the length of the track 6, the actual operating environment, etc. No more specific limitations are made here, and only some feasible solutions are given as examples.

[0060] In this embodiment, the water spraying gears of the water spraying component 2 include a first gear, a second gear, a third gear, a fourth gear and a fifth gear that increase in sequence. Among them: the water spraying amount of the first gear, the length of the track 6 and the lower limit value of the remaining water amount in the movable water tank 2-2 should be determined after comprehensive consideration. The lower limit value should meet the requirement that when the water spraying component 2 operates at the water spraying amount of the first gear in the track 6, the water spraying operation will not be interrupted due to the lack of water in the movable water tank 2-2 from one end of the track 6 to the other end.

[0061] Refer to the appendix Figure 6, during the operation of the sprinkling assembly 2, the liquid level sensor 12 continuously detects the remaining water volume in the movable water tank 2-2. When the remaining water volume is lower than the lower limit value, the sprinkling assembly 2 operates in the first gear for sprinkling until the sprinkling assembly 2 moves to the fixed water tank 7 for water replenishment; when the remaining water volume in the movable water tank 2-2 is higher than the lower limit value, the sprinkling assembly 2 changes the sprinkling gear according to the sunlight and temperature conditions. When there is no light or the temperature is less than 20°C, the sprinkling assembly 2 operates in the first gear for sprinkling. When there is light and the temperature is between 20 and 25°C, the sprinkling assembly 2 operates in the second gear for sprinkling. When there is light and the temperature is between 25 and 30°C, the sprinkling assembly 2 operates in the third gear for sprinkling. When there is light and the temperature is between 30 and 35°C, the sprinkling assembly 2 operates in the fourth gear for sprinkling. When there is light and the temperature is greater than 35°C, the sprinkling assembly 2 operates in the fifth gear for sprinkling. Through the above gear regulation, the amount of sprinkled water can be accurately controlled, avoiding insufficient sprinkling, excessive sprinkling or abnormal interruption.

[0062] During implementation, the movable water tank 2-2 should have a relatively high water storage capacity and does not necessarily need to be replenished with water when it moves to the fixed water tank 7, because this will reduce the sprinkling and maintenance efficiency. Therefore, in this embodiment, the water replenishment scheme is set as follows: when the sprinkling assembly 2 operates in the lowest gear for sprinkling due to low water volume, the sprinkling assembly 2 should move to the fixed water tank 7 at the end of the forward direction at this time for water replenishment. Therefore, to ensure the improvement of the automation degree of the device, reduce manual intervention and ensure the sprinkling and maintenance efficiency, a position sensor 13 and a limit plate 14 are configured outside the fixed water tank 7 in this embodiment. The position sensor 13 is configured on the limit plate and controls the assembly 1 through signal connection, and is used to detect the position of the vehicle body 2-1; an elastic buffer 15 is configured on the vehicle body 2-1, and the elastic buffer 15 can contact the limit plate 14 as the vehicle body 2-1 moves.

[0063] When the vehicle body 2-1 moves to the preset "water replenishment reversing point" outside the fixed water tank 7, the control assembly 1 controls the moving wheel 4-2 to gradually decelerate until it stops, in order to change the steering of the moving wheel 4-2 or make the vehicle body 2-1 stationary for water replenishment. During the deceleration process of the moving wheel 4-2, the elastic buffer 15 contacts the limit plate 14 and then deforms, making the vehicle body 2-1 decelerate smoothly and avoiding colliding with the vehicle body 2-1 or excessive oscillation; whether the next action of this device is the steering change of the moving wheel 4-2 or the vehicle body 2-1 is stationary for water replenishment is automatically regulated by the control assembly 1 according to the liquid level information. In particular, by controlling the staying time of the vehicle body 2-1 at the position sensor 13 to link the next action, the staying time of the vehicle body 2-1 near the position sensor 13 satisfies: the staying time when water replenishment is required > the staying time of the steering of the moving wheel 4-2.

[0064] When water replenishment is required, the control component 1 controls the vehicle body 2-1 to stay near the position sensor 13 for a relatively long time (e.g., more than 5 s). The position sensor 13 transmits the induction signal of the vehicle body 2-1 to the control component 1, and the control component 1 starts the water replenishment pump 8 to replenish water to the mobile water tank 2-2. After the mobile water tank 2-2 is full of water, the water replenishment pump 8 is shut down, and then the mobile wheel 4-2 is controlled to move in the reverse direction, so that the sprinkling component 2 continues to perform the sprinkling operation.

[0065] Reference appendix Figures 3-5 In the energy supply component 4 of this embodiment, a power supply 4-1, the above-mentioned mobile wheel 4-2, a transmission module 4-3 and a transducer 4-4 are configured. The power supply 4-1 is used to supply power to the mobile wheel 4-2 and the sprinkling component 2 to drive the sprinkling component 2 to move or sprinkle water; the transducer 4-4 is connected to the mobile wheel 4-2 through the transmission module 4-3 and is used to convert the mechanical energy of the mobile wheel 4-2 into electrical energy and supply it to the ventilation component 3, which can improve the energy utilization rate of the power supply 4-1.

[0066] The ventilation component 3 includes a plurality of ventilation fans 3-1, and the ventilation fans 3-1 are electrically connected to the transducer 4-4; the transducer 4-4 is a permanent magnet generator; the transmission module 4-3 includes a first gear 4-31, a transmission gear set and a transmission chain 4-35. The first gear 4-31 is coaxially fixed to the mobile wheel 4-2, and during the movement of the mobile wheel 4-2 along the track 6, the first gear 4-31 rotates with it; a set of transmission gear sets is provided at each of the two long ends of the track 6, and at least one set of transmission gear sets is connected to a permanent magnet generator. If both sets of transmission gear sets are connected to permanent magnet generators, the two sets are respectively connected to different permanent magnet generators and generate electricity respectively; the transmission chain 4-35 connects the two sets of transmission gears and the first gear 4-31 located therebetween. The power supply 4-1 supplies power to the mobile wheel 4-2 to make it rotate and move, and the mechanical energy generated by the rotation of the mobile wheel 4-2 is transmitted to the permanent magnet generator through the first gear 4-31, the transmission gear set and the transmission chain 4-35. After the permanent magnet generator generates electricity, it can supply power to the ventilation fan 3-1. This process can effectively improve the energy utilization rate of the power supply 4-1, especially in application environments with larger specifications such as box girders, and can significantly reduce the power cost.

[0067] To improve the transmission efficiency and ensure the power of energy conversion and power generation, the transmission gear set is configured as a second gear 4-32 and a third gear 4-33 fixedly connected coaxially. The first gear 4-31 and two sets of second gears 4-32 are both located inside the transmission chain 4-35 and mesh with the transmission chain 4-35. The third gear 4-33 meshes with a fourth gear 4-34 on the transducer 4-4. The radius of the first gear 4-31 > the radius of the second gear 4-32, and the radius of the third gear 4-33 > the radius of the fourth gear 4-34. Thus, by driving the first gear 4-31 to rotate through the moving wheel 4-2, and then driving the smaller-sized fourth gear 4-34 to rotate at a faster speed, the power generation of the permanent magnet generator can be effectively guaranteed, and the stable operation of the exhaust fan 3-1 can be ensured.

[0068] To facilitate installation, disassembly, and maintenance, a height-adjustable mounting frame 5 is configured on the track 6. The transmission gear set is rotatably connected to the mounting frame 5 (for example, the rotating shaft of the transmission gear set is connected to the mounting frame 5 through a bearing). When the height of the mounting frame 5 is lowered, the transmission chain 4-35 meshes with and is tightened by the first gear 4-31 and the second gear 4-32, and the third gear 4-33 meshes with the fourth gear 4-34 to ensure effective transmission and energy conversion and power generation. When the height of the mounting frame 5 is raised, the third gear 4-33 is separated from the fourth gear 4-34. Although the transmission chain 4-35 contacts the first gear 4-31 and the second gear 4-32, it is not tightened, and the structures such as each gear and the chain can be inspected and maintained. After the maintenance project is completed, the device can also be gradually disassembled.

[0069] The configuration of the mounting frame 5 can be configured according to actual needs. For example, it can be a plate-shaped structure. The plate-shaped structure is configured with a first positioning hole 5-1 and a first mounting hole 5-2. The first mounting hole 5-2 is used to install and connect the bearing of the transmission gear set. On the side wall of the track 6, a number of second positioning holes 6-1 and second mounting holes 6-2 with different heights are configured. The first positioning hole 5-1 and the second positioning hole 6-1 have the same configuration, and the mounting frame 5 can be fixed in the second positioning holes 6-1 at different heights through bolts. The first mounting hole 5-2 and the second mounting hole 6-2 have the same configuration, and the second mounting hole 6-2 is used to assist in supporting the bearing.

[0070] The above-mentioned light sensor 10, temperature sensor 11, liquid level sensor 12, position sensor 13, etc. are all existing devices. The elastic buffer 15 can utilize one or more spring assemblies; the power source 4-1 includes a fixed power source and a mobile power source (not shown in the figure). The mobile power source includes a solar cell and a storage battery. The power source 4-1 is connected to the mobile wheel 4-2 through the servo motor 4-5. When using this device, the type of power source can be flexibly switched according to the on-site conditions. For example, in the case of sunlight, the solar cell 4-12 is preferentially used, etc. When both the solar cell 4-12 and the storage battery 4-13 cannot meet the power supply requirements, the fixed power source 4-11 (i.e., the direct wiring method) can be used for power supply. The servo motor 4-5 is connected to the control component 1. The control component 1 can adjust the rotation speed and steering of the mobile wheel 4-2 by controlling the operating power and steering of the servo motor 4-5.

[0071] Compared with the prior art, the beneficial effects of the present invention include: through the regulation of the control component 1, this device can be used to automatically and accurately sprinkle water for curing the cast-in-place box girder when the top slab of the cast-in-place box girder has not been poured, avoiding insufficient sprinkling and reducing the quality of concrete, or avoiding excessive sprinkling and affecting the construction of the road under the bridge; it can also be used to sprinkle water for curing the inner wall of the box girder after the top slab of the cast-in-place box girder or precast box girder has been poured, and during the period of removing the formwork and repairing the top slab, use the water sprinkling component 2 and the air exchange component 3 to reduce the temperature in the box chamber, improve the working environment of workers, reduce the operation risk and improve the construction efficiency.

[0072] The above is the preferred implementation manner of the present invention. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. An automatic sprinkling and curing ventilation device inside a box girder, characterized in that, Including: A control component for controlling the operating state of the ventilation device; A sprinkler component movably disposed inside the box girder for sprinkling water on the inner wall of the box girder; A ventilation component disposed inside the box girder for increasing the gas flow rate inside the box girder; An energy supply component for supplying energy to the sprinkler component and the ventilation component.

2. The automatic sprinkler curing and ventilation device inside the box girder according to claim 1, wherein, The energy supply component includes a power source, moving wheels, a transmission module, and a transducer. The power source supplies power to the moving wheels and the sprinkler component to drive the sprinkler component to move or sprinkle water; the transducer is connected to the moving wheels through the transmission module and is used to convert the mechanical energy of the moving wheels into electrical energy for supply to the ventilation component.

3. The automatic sprinkling and curing ventilation device inside the box girder according to claim 2, characterized in that, The transmission module includes a first gear, a transmission gear set, and a transmission chain. The first gear is coaxially and fixedly connected to the moving wheels; the moving wheels are disposed in the track inside the box girder and can move along the track; one set of the transmission gear sets is provided at each of the two long ends of the track, and at least one set of the transmission gear sets is connected to the transducer; the transmission chain connects the two transmission gears and the first gear located therebetween.

4. The automatic sprinkling and curing ventilation device inside the box girder according to claim 3, characterized in that, The transmission gear set includes a second gear and a third gear coaxially and fixedly connected. The first gear and the two second gears are connected by the transmission chain, and the third gear is connected to a fourth gear on the transducer; the radius of the first gear > the radius of the second gear, and the radius of the third gear > the radius of the fourth gear.

5. The automatic sprinkling and curing ventilation device inside the box girder according to claim 3 or 4, characterized in that, The transmission gear set is connected to the track through a mounting frame, and the mounting height of the mounting frame on the track is adjustable.

6. The automatic sprinkling curing and ventilation device inside the box girder according to claim 5, characterized in that, The power source includes a fixed power source and / or a mobile power source. The mobile power source includes a solar cell and / or a storage battery; the power source is connected to the moving wheels through a servo motor, and the servo motor is controlled by the control component to adjust the steering and speed of the moving wheels.

7. The automatic sprinkler curing and ventilation device inside the box girder according to claim 6, characterized in that, The sprinkler component includes a vehicle body, a mobile water tank, a spray water pump, a spray water pipe, and a spray head. The vehicle body is connected to the moving wheels. The mobile water tank is disposed on the vehicle body. The spray water pipe is disposed on the vehicle body and its mounting height is adjustable. The spray head is connected to the water outlet end of the spray water pipe and its mounting angle is adjustable. The spray water pump is used to pump the water in the mobile water tank to the spray head; fixed water tanks are respectively disposed at the two long ends of the track, and a makeup water pump and a makeup water pipe for replenishing water to the mobile water tank are disposed on the fixed water tanks; the spray water pump and the makeup water pump are respectively controlled by the control component.

8. The automatic sprinkling and curing ventilation device inside the box girder according to claim 7, characterized in that, A light sensor and a temperature sensor are disposed on the vehicle body, and a liquid level sensor is disposed in the mobile water tank. The control component receives the signals of the light sensor, the temperature sensor, and the liquid level sensor to regulate the sprinkling gear of the sprinkler component; The ventilation component includes a plurality of ventilation fans, and the ventilation fans are electrically connected to the transducer; the transducer is a permanent magnet generator.

9. The automatic sprinkling and curing ventilation device inside the box girder according to claim 7 or 8, characterized in that, A position sensor and a limit plate are arranged on the outer side of the fixed water tank. The position sensor is connected to the control component and is used to detect the position of the vehicle body. An elastic buffer is arranged on the vehicle body, and the elastic buffer can contact the limit plate as the vehicle body moves.

10. A method for using the automatic sprinkling, curing and ventilation device in the box girder according to claim 9, characterized in that, It includes the steps of: Starting the device, and the control component determines whether the device is at the water replenishment commutation position according to the position information detected by the position sensor, so as to determine whether it is necessary to change the steering of the moving wheels; The control component determines whether the water level in the moving water tank is lower than the lower limit value according to the liquid level information detected by the liquid level sensor, so as to determine whether it is necessary to replenish water to the moving water tank; The control component determines whether there is light in the working environment of the device according to the light information detected by the light sensor, so as to adjust the sprinkling gear of the sprinkling component; The control component determines the temperature of the working environment of the device according to the temperature information detected by the temperature sensor, so as to adjust the sprinkling gear of the sprinkling component.

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