Automatic watering and aeration device in box girder

Abstract

The utility model provides a kind of automatic watering health ventilation device in box girder, it includes control component, for controlling the operating state of ventilation device;Watering component, movably arranged in box girder, for watering the inner wall of the box girder;Ventilation component, arranged in the box girder, for improving the gas flow rate in the box girder;Energy supply component, for supplying energy to the watering component and the ventilation component.The utility model can be used to automatically, accurately water and keep health for cast-in-place box girder when the roof of cast-in-place box girder has not been poured, to avoid insufficient watering and reduce the quality of concrete, or to avoid excessive watering and affect the road construction under the bridge;It can also be used to water and keep health for the inner wall of box girder after the roof of cast-in-place box girder and precast box girder is poured, and during roof form removal and repair, utilize watering component and ventilation component to reduce the temperature in box chamber, improve the working environment of worker, reduce the operation risk and improve construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of box girder construction technology, and in particular to an automatic water spraying, curing and ventilation device inside a box girder. Background Technology

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

[0003] Typically, municipal bridge construction is carried out simultaneously with road construction beneath the bridge. An important structural component of municipal bridges is the box girder, which includes cast-in-place box girders and precast box girders. Both are made of concrete and require regular watering during their curing process to ensure the quality of the concrete's setting.

[0004] If the municipal bridge adopts the construction method of cast-in-place box girder, during the water curing process of the cast-in-place box girder, the workers' inaccurate control of the water spraying amount can easily lead to problems of insufficient or excessive water spraying. Insufficient water spraying will affect the concrete quality of the cast-in-place box girder, while excessive water spraying will affect the road construction under the bridge.

[0005] In addition, when casting box girders, the bottom slab and side slabs are usually poured after they have reached a certain strength. During the demolding and repair of the top slab, workers need to enter the box chamber (i.e., the inner cavity of the box girder) to work. In the hot summer, the initial hydration heat of the concrete will dissipate outward, causing the temperature inside the box chamber to rise. Workers inside the box chamber are very likely to suffer from heatstroke, which not only poses a high risk to the work, but also reduces construction efficiency. Utility Model Content

[0006] The purpose of this invention is to provide an automatic water spraying and ventilation device inside a box girder, thereby addressing the shortcomings in the aforementioned background technology.

[0007] The technical solution of this utility model is: an automatic watering, curing, and ventilation device for box girders, comprising:

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

[0009] A water spraying assembly is movably mounted inside the box girder for spraying water onto the inner wall of the box girder;

[0010] A ventilation assembly, constructed inside the box girder, is used to increase the gas flow rate within the box girder;

[0011] A power supply component is used to supply energy to the sprinkler assembly and the ventilation assembly.

[0012] Furthermore, the power supply component includes a power source, a moving wheel, a transmission module, and a transducer. The power source supplies power to the moving wheel and the water spraying component to drive the water spraying component to move or spray water. The transducer is connected to the moving wheel through the transmission module and is used to convert the mechanical energy of the moving wheel into electrical energy to supply 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 fixed to the moving wheel. The moving wheel is positioned in a track within the box girder and can move along the track. A transmission gear set is provided at each of the two ends of the track along its length, and at least one set of the transmission gear set is connected to the transducer. The transmission chain connects two sets of the transmission gears and the first gear located between them.

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

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

[0016] Furthermore, the power source includes a fixed power source and / or a mobile power source, the mobile power source including a solar cell and / or a battery; the power source is connected to the moving wheel via a servo motor, the servo motor being controlled by the control component to adjust the steering and rotation speed of the moving wheel.

[0017] Furthermore, the water spraying assembly includes a vehicle body, a mobile water tank, a water pump, a water spray pipe, and nozzles. The vehicle body is connected to the moving wheels, the mobile water tank is mounted on the vehicle body, the water spray pipe is mounted on the vehicle body and its installation height is adjustable, the nozzles are connected to the water outlet of the water spray pipe and their installation angle is adjustable, and the water pump is used to pump water from the mobile water tank to the nozzles. Fixed water tanks are respectively mounted at both ends of the track, and a water replenishment pump and a water replenishment pipe for replenishing water to the mobile water tank are mounted on the fixed water tanks. The water pump and the water replenishment pump are respectively controlled by the control assembly.

[0018] Furthermore, the vehicle body is equipped with a light sensor and a temperature sensor, and the mobile water tank is equipped with a liquid level sensor. The control component receives signals from the light sensor, the temperature sensor, and the liquid level sensor to adjust the water spraying level of the water spraying component.

[0019] Furthermore, a position sensor and a limiting plate are provided on the outside 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 provided on the vehicle body, and the elastic buffer can contact the limiting plate as the vehicle body moves.

[0020] Furthermore, the ventilation assembly includes a plurality of ventilation fans, which are electrically connected to the transducer; the transducer is a permanent magnet generator.

[0021] The beneficial effects of this utility model are as follows: By controlling the components, this device can be used to automatically and precisely spray water on the cast-in-place box girder before the top slab is poured, avoiding insufficient watering that would reduce the quality of the concrete, or excessive watering that would affect the construction of the road under the bridge; it can also be used to spray water on the inner wall of the cast-in-place box girder or precast box girder after the top slab is poured, and during the demolding and repair of the top slab, the water spraying component and the ventilation component can be used to reduce the temperature inside the box girder, improve the working environment of the workers, reduce the risk of operation and improve the construction efficiency. Attached Figure Description

[0022] Figure 1 This is an overall structural diagram of an embodiment of the present utility model;

[0023] Figure 2 This is a structural diagram of the water sprinkler assembly in an embodiment of this utility model;

[0024] Figure 3 This is a structural diagram of the power supply component in an embodiment of this utility model;

[0025] Figure 4 This is a side view of the connection between the power supply component and the track in an embodiment of this utility model;

[0026] Figure 5 This is a structural diagram of the track and mounting frame in an embodiment of this utility model;

[0027] Figure 6 This is a logic control flowchart of the control component in an embodiment of this utility model.

[0028] In the picture:

[0029] 1. Control components;

[0030] 2. Sprinkler assembly; 2-1. Vehicle body; 2-2. Mobile water tank; 2-3. Water pump; 2-4. Water hose; 2-5. Sprinkler head;

[0031] 3. Ventilation components; 3-1. Exhaust fan;

[0032] 4. Power supply components; 4-1. Power supply; 4-2. Moving wheels; 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;

[0033] 5. Mounting bracket; 5-1. Positioning hole one; 5-2. Mounting hole one;

[0034] 6. Track; 6-1. Positioning hole two; 6-2. Mounting hole two;

[0035] 7. Secure the water tank;

[0036] 8. Water supply pump;

[0037] 9. Water supply pipe;

[0038] 10. Light sensor;

[0039] 11. Temperature sensor;

[0040] 12. Liquid level sensor;

[0041] 13. Position sensor;

[0042] 14. Limit plate;

[0043] 15. Elastic cushioning components. Detailed Implementation

[0044] The technical solutions of the embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0045] In the description of the embodiments of this utility model, it should be understood that the terms "top," "bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, it should be noted that unless otherwise expressly specified and limited, the terms "set" and "connected" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two elements. Those skilled in the art can understand the specific meaning of the above terms in this utility model through specific circumstances.

[0046] Reference Appendix Figure 1-6This embodiment provides an automatic watering and ventilation device for box girder maintenance, which includes a control component 1, a watering component 2, a ventilation component 3, and a power supply component 4. The control component 1 can be constructed using an industrial control computer with PLC function, an industrial control computer, and related motherboard circuits, cables, etc. (which is prior art and will not be described in detail here), and is used to control the operating status of the ventilation device; the power supply component 4 is used to supply energy to the watering component 2 and the ventilation component 3; the watering component 2 is movably installed inside the box girder and is used to spray water onto the inner wall of the box girder; the ventilation component 3 is installed inside the box girder and is used to increase the gas flow rate inside the box girder.

[0047] By controlling component 1, the above-mentioned device can be used to automatically and precisely spray water on the cast-in-place box girder before the top slab of the cast-in-place box girder is poured, so as to avoid insufficient watering and reduced concrete quality, or excessive watering and affected the construction of the road under the bridge. It can also be used to spray water on 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 demolding and repair of the top slab, the water spray component 2 and the ventilation component 3 can be used to reduce the temperature inside the box girder, improve the working environment of the workers, reduce the operation risk and improve the construction efficiency.

[0048] To ensure the orderly operation of water spraying and ventilation, the device is equipped with a track 6, which is laid along the length of the box girder. The track 6 can be constructed using channel steel, which is fixed to the bottom plate of the box girder with expansion bolts during installation. The moving wheel 4-2 in the power supply component 4 is installed in the track 6. The water spraying component 2 is connected to the moving wheel 4-2 and moves back and forth along the length of the track 6 driven by the moving wheel 4-2 to complete the water spraying task.

[0049] Reference Appendix Figure 2 The water spraying assembly 2 includes a vehicle body 2-1, a mobile water tank 2-2, a water pump 2-3, a water pipe 2-4, and a nozzle 2-5. The mobile wheels 4-2 are mounted on the bottom of the vehicle body 2-1, the mobile water tank 2-2 is mounted on the vehicle body 2-1, the water pipe 2-4 is mounted on the vehicle body 2-1 and its installation height is adjustable, and the nozzle 2-5 is connected to the outlet end of the water pipe 2-4 and its installation angle is adjustable. The water pump 2-3 pumps water from the mobile water tank 2-2 to the nozzle 2-5. -5; Fixed water tanks 7 are respectively installed at both ends of the track 6. Water pumps 8 and water pipes 9 are installed on the fixed water tanks 7 for replenishing water to the mobile water tank 2-2. The water storage capacity of the fixed water tank 7 is greater than that of the mobile water tank 2-2, and the water in the fixed water tank 7 is checked and replenished daily by a designated person; Water spray pump 2-3 and water replenishment pump 8 are respectively controlled by control component 1 to complete the tasks of spraying water on the inner wall of the tank and replenishing water to the mobile water tank 2-2.

[0050] The adjustable installation height of the water spray pipe 2-4 and the adjustable installation angle of the nozzle 2-5 are existing technologies. Those skilled in the art can freely configure the model and installation method of the water spray pipe 2-4 and nozzle 2-5 according to actual needs, which will not be elaborated here. Of course, the length of the water spray pipe 2-4 itself can also be adjustable, and the nozzle 2-5 can be rotatably connected to the water spray pipe 2-4. By changing the installation height and length of the water spray pipe 2-4 and the installation angle of the nozzle 2-5, the water spray direction can be precisely adjusted to ensure uniform water distribution and compliance with design requirements.

[0051] The model and installation method of the water supply pipe 9 can also be selected according to actual needs. In order to avoid the water spraying component 2 from being tangled and hindering its operation, this embodiment does not use a flexible water pipe that can move with the water spraying component 2. Instead, a rigid water pipe fixed on the fixed water tank 7 is used. For example, an inverted L-shaped water pipe with the vertical end extending into the fixed water tank 7 and the horizontal end extending out of the fixed water tank 7 is used. A water inlet or water hopper is constructed on the top of the mobile water tank 2-2, which corresponds to the position of the horizontal end of the water supply pipe 9. When the vehicle body 2-1 moves to the vicinity of the fixed water tank 7, the horizontal end of the water supply pipe 9 is just above the mobile water tank 2-2. The control component 1 starts the water supply pump 8. The water in the fixed water tank 7 falls into the mobile water tank 2-2 after passing through the vertical end and the horizontal end of the water supply pipe 9 in sequence. After the liquid level sensor 12 detects that the mobile water tank 2-2 is full of water, the control component 1 shuts off the water supply pump 8.

[0052] The water pump 2-3 is connected to the control component 1. The control component 1 can precisely control the water volume of the nozzle 2-5 by controlling the operating power of the water pump 2-3. The water volume needs to be determined based on the water loss rate of the concrete and the remaining water volume in the mobile water tank 2-2. Therefore, in this embodiment, a light sensor 10 and a temperature sensor 11 are installed on the vehicle body 2-1, and a liquid level sensor 12 is installed in the mobile water tank 2-2. The control component 1 receives the signals from the light sensor 10, the temperature sensor 11, and the liquid level sensor 12 to adjust the water spraying level of the water spraying component 2.

[0053] During implementation, control component 1 first uses the brightness information detected by light sensor 10 to determine whether the inner wall of the box is exposed to sunlight. If it is not exposed to sunlight (e.g., at night or when the top plate of the box beam has been poured), the water loss rate of the inner wall is low, and control component 1 should control water pump 2-3 to operate at the lowest power level to ensure sufficient but not excessive watering. If it is exposed to sunlight, the water loss rate of the inner wall is high. At this time, control component 1 uses the temperature information detected by temperature sensor 11 to determine the current ambient temperature. The higher the ambient temperature, the higher the power level of water pump 2-3 should be to ensure sufficient watering. At the same time, liquid level sensor 12 continuously detects the remaining water in mobile water tank 2-2. When the remaining water is below the lower limit, control component 1 should control water pump 2-3 to operate at the lowest power level 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 watering operation is not interrupted during this movement.

[0054] The number of spray levels of the sprinkler assembly 2 and the power of the water pump 2-3 can be configured according to the actual size of the device (especially including the water storage capacity of the mobile water tank 2-2), the length of the track 6, the actual working environment, etc. No more specific limitations are made here, but only some feasible solutions are given as examples.

[0055] In this embodiment, the water spraying levels of the sprinkler assembly 2 include a first level, a second level, a third level, a fourth level, and a fifth level that increase sequentially. The water spray volume of the first level, the length of the track 6, and the lower limit of the remaining water volume in the mobile water tank 2-2 should be determined after comprehensive consideration. The lower limit should satisfy the following: when the sprinkler assembly 2 is running in the track 6 with the water spray volume of the first level, its water spraying operation from one end of the track 6 to the other end will not be interrupted due to the lack of water in the mobile water tank 2-2.

[0056] Reference Appendix Figure 6 During the operation of the sprinkler assembly 2, the liquid level sensor 12 monitors the remaining water level in the mobile water tank 2-2 in real time. When the remaining water level is lower than the lower limit, the sprinkler assembly 2 operates at the first setting until it moves to the fixed water tank 7 to replenish water. When the remaining water level in the mobile water tank 2-2 is higher than the lower limit, the sprinkler assembly 2 changes the sprinkling setting according to the sunlight and temperature. When there is no sunlight or the temperature is less than 20°C, the sprinkler assembly 2 operates at the first setting. When there is sunlight and the temperature is between 20°C and 25°C, the sprinkler assembly 2 operates at the second setting. When there is sunlight and the temperature is between 25°C and 30°C, the sprinkler assembly 2 operates at the third setting. When there is sunlight and the temperature is between 30°C and 35°C, the sprinkler assembly 2 operates at the fourth setting. When there is sunlight and the temperature is greater than 35°C, the sprinkler assembly 2 operates at the fifth setting. By adjusting the above settings, the amount of water sprayed can be precisely controlled, avoiding insufficient, excessive, or abnormal interruptions in watering.

[0057] In practice, the mobile water tank 2-2 should have a high water storage capacity. It is not necessary to replenish water every time it is moved to the fixed water tank 7, because doing so would reduce the efficiency of watering and maintenance. Therefore, in this embodiment, the water replenishment scheme is set as follows: when the water spraying component 2 is running at the lowest setting due to low water volume, the water spraying component 2 should move to the fixed water tank 7 at the end of the current forward direction to replenish water. Therefore, in order to ensure the automation level of the device, reduce manual intervention, and ensure the efficiency of watering and maintenance, this embodiment has a position sensor 13 and a limiting plate 14 on the outside of the fixed water tank 7. The position sensor 13 is mounted on the limiting plate and is connected to the control component 1 through a signal to detect the position of the vehicle body 2-1. An elastic buffer 15 is mounted on the vehicle body 2-1, and the elastic buffer 15 can contact the limiting plate 14 as the vehicle body 2-1 moves.

[0058] When the vehicle body 2-1 moves to the preset "water replenishment reversal point" outside the fixed water tank 7, the control component 1 controls the moving wheel 4-2 to gradually decelerate to a stop, in order to change the direction of the moving wheel 4-2 or to make the vehicle body 2-1 stationary for water replenishment. During the deceleration of the moving wheel 4-2, the elastic buffer 15 contacts the limiting plate 14 and deforms, so that the vehicle body 2-1 decelerates smoothly and avoids collision with the vehicle body 2-1 or excessive vibration. The next action of this device, whether the moving wheel 4-2 changes direction or the vehicle body 2-1 remains stationary for water replenishment, is automatically adjusted by the control component 1 according to the liquid level information. In particular, the next action is linked by controlling the dwell time of the vehicle body 2-1 at the position sensor 13. The dwell time of the vehicle body 2-1 near the position sensor 13 satisfies the following condition: the dwell time when water replenishment is needed is greater than the dwell time when the moving wheel 4-2 changes direction.

[0059] When water replenishment is needed, the control component 1 controls the vehicle body 2-1 to stay near the position sensor 13 for a longer period of time (e.g., more than 5 seconds). The position sensor 13 transmits the sensing signal of the vehicle body 2-1 to the control component 1. The control component 1 starts the water replenishment pump 8 to replenish the mobile water tank 2-2. After the mobile water tank 2-2 is full, the water replenishment pump 8 is turned off, and then the mobile wheel 4-2 is controlled to change direction so that the water spraying component 2 can continue to spray water.

[0060] Reference Appendix Figure 3-5 In this embodiment, the power supply component 4 is equipped with a power supply 4-1, the aforementioned moving wheel 4-2, a transmission module 4-3, and a transducer 4-4. The power supply 4-1 is used to supply power to the moving wheel 4-2 and the water spraying component 2, so as to drive the water spraying component 2 to move or spray water. The transducer 4-4 is connected to the moving wheel 4-2 through the transmission module 4-3, and is used to convert the mechanical energy of the moving wheel 4-2 into electrical energy to supply to the ventilation component 3, which can improve the energy utilization rate of the power supply 4-1.

[0061] The ventilation assembly 3 includes several ventilation fans 3-1, which 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 moving wheel 4-2. As the moving wheel 4-2 moves along the track 6, the first gear 4-31 rotates with it. There is one transmission gear set at each end of the track 6. At least one transmission gear set is connected to a permanent magnet generator. If both transmission gear sets are connected to permanent magnet generators, then the two sets are connected to different permanent magnet generators and generate electricity separately. The transmission chain 4-35 connects the two transmission gear sets and the first gear 4-31 located between them. Power supply 4-1 supplies power to the moving wheel 4-2, causing it to rotate and move. The mechanical energy generated by the rotation of the moving wheel 4-2 is then transmitted to the permanent magnet generator through the first gear 4-31, the transmission gear set and the transmission chain 4-35. After generating electricity, the permanent magnet generator can supply power to the ventilation fan 3-1. This process can effectively improve the energy utilization rate of power supply 4-1, especially in large-scale application environments such as box girders, and can significantly reduce electricity costs.

[0062] To improve transmission efficiency and ensure the power output of the generator, the transmission gear set is configured with a second gear 4-32 and a third gear 4-33 coaxially fixed. The first gear 4-31 and the two sets of second gears 4-32 are located inside the transmission chain 4-35 and mesh with the transmission chain 4-35. The third gear 4-33 meshes with the fourth gear 4-34 on the transducer 4-4. The radius of the first gear 4-31 is greater than the radius of the second gear 4-32, and the radius of the third gear 4-33 is greater than the radius of the fourth gear 4-34. Thus, the first gear 4-31 is driven to rotate by the moving wheel 4-2, which in turn drives the smaller fourth gear 4-34 to rotate at a faster speed. This effectively ensures the power output of the permanent magnet generator and guarantees the stable operation of the ventilation fan 3-1.

[0063] To facilitate installation, disassembly, and maintenance, a height-adjustable mounting frame 5 is constructed on the track 6. The transmission gear set is rotatably connected to the mounting frame 5 (for example, the 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 the first gear 4-31 and the second gear 4-32 and is tightened, while the third gear 4-33 meshes with the fourth gear 4-34, ensuring effective transmission and energy conversion for power generation. When the height of the mounting frame 5 is raised, the third gear 4-33 and the fourth gear 4-34 are separated. Although the transmission chain 4-35 is in contact with the first gear 4-31 and the second gear 4-32, it is not tightened, allowing for the inspection and maintenance of each gear, chain, and other structures. The device can also be gradually disassembled after the maintenance work is completed.

[0064] The configuration of the mounting bracket 5 can be configured according to actual needs. For example, it can be a plate-shaped structure with positioning hole 5-1 and mounting hole 5-2. Mounting hole 5-2 is used to install the bearing connecting the transmission gear set. The side wall of the track 6 has several positioning holes 6-1 and mounting holes 6-2 at different heights. Positioning holes 5-1 and 6-1 have the same configuration and can be fixed in the positioning holes 6-1 at different heights by bolts. Mounting holes 5-2 and 6-2 have the same configuration and are used to support the bearing.

[0065] The light sensor 10, temperature sensor 11, liquid level sensor 12, and position sensor 13 mentioned above are all existing devices. The elastic buffer 15 can utilize one or more spring assemblies. The power supply 4-1 includes a fixed power supply and a mobile power supply (not shown in the figure). The mobile power supply includes a solar cell and a storage battery. The power supply 4-1 is connected to the moving wheel 4-2 through the servo motor 4-5. When using this device, the type of power supply can be flexibly switched according to the site conditions. For example, when there is sunlight, the solar cell 4-12 is used first. When neither the solar cell 4-12 nor the storage battery 4-13 can meet the power supply demand, the fixed power supply 4-11 (i.e., direct wiring) can be used to supply power. The servo motor 4-5 is connected to the control component 1. The control component 1 can adjust the speed and direction of the moving wheel 4-2 by controlling the running power and direction of the servo motor 4-5.

[0066] Compared with the prior art, the beneficial effects of this utility model include: by controlling the adjustment of component 1, this device can be used to automatically and accurately spray water on the cast-in-place box girder before the top slab of the cast-in-place box girder is poured, so as to avoid insufficient watering and reduced concrete quality, or excessive watering and affected the construction of the road under the bridge; it can also be used to spray water on 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 demolding and repair of the top slab, the water spray component 2 and the ventilation component 3 can be used to reduce the temperature inside the box girder, improve the working environment of the workers, reduce the operation risk and improve the construction efficiency.

[0067] The above are preferred embodiments of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An automatic watering and ventilation device for box girder curing, characterized in that, include: A control component for controlling the operating status of the ventilation device; A water spraying assembly is movably mounted inside the box girder for spraying water onto the inner wall of the box girder; A ventilation assembly, constructed inside the box girder, is used to increase the gas flow rate within the box girder; A power supply component is used to supply energy to the sprinkler assembly and the ventilation assembly.

2. The automatic watering and ventilation device inside the box girder according to claim 1, characterized in that, The power supply component includes a power source, a moving wheel, a transmission module, and a transducer. The power source supplies power to the moving wheel and the water spraying component to drive the water spraying component to move or spray water. The transducer is connected to the moving wheel through the transmission module and is used to convert the mechanical energy of the moving wheel into electrical energy to supply the ventilation component.

3. The automatic watering and 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 fixed to the moving wheel. The moving wheel is mounted in a track within the box girder and can move along the track. A transmission gear set is provided at each of the two ends of the track along its length, and at least one set of the transmission gear set is connected to the transducer. The transmission chain connects two sets of the transmission gears and the first gear located between them.

4. The automatic watering and 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 fixed together. The first gear and two sets of the second gear are connected through the transmission chain. The third gear is connected to a fourth gear on the transducer. The radius of the first gear is greater than the radius of the second gear, and the radius of the third gear is greater than the radius of the fourth gear.

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

6. The automatic watering and ventilation device inside the box girder according to claim 5, characterized in that, The power source includes a stationary power source and / or a mobile power source, the mobile power source including a solar cell and / or a battery; the power source is connected to the moving wheel via a servo motor, the servo motor being controlled by the control component to adjust the direction and speed of the moving wheel.

7. The automatic watering and ventilation device inside the box girder according to claim 6, characterized in that, The water spraying assembly includes a vehicle body, a mobile water tank, a water pump, a water spray pipe, and nozzles. The vehicle body is connected to the moving wheels. The mobile water tank is mounted on the vehicle body. The water spray pipe is mounted on the vehicle body and its installation height is adjustable. The nozzles are connected to the water outlet of the water spray pipe and their installation angle is adjustable. The water pump is used to pump water from the mobile water tank to the nozzles. Fixed water tanks are respectively mounted at both ends of the track. The fixed water tanks are equipped with a water replenishment pump and a water replenishment pipe for replenishing water to the mobile water tank. The water pump and the water replenishment pump are respectively controlled by the control assembly.

8. The automatic watering and ventilation device inside the box girder according to claim 7, characterized in that, The vehicle body is equipped with a light sensor and a temperature sensor, and the mobile water tank is equipped with a liquid level sensor. The control component receives signals from the light sensor, the temperature sensor and the liquid level sensor to adjust the water spraying level of the water spraying component.

9. The automatic watering and ventilation device inside the box girder according to claim 7 or 8, characterized in that, A position sensor and a limiting plate are provided on the outside 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 provided on the vehicle body, and the elastic buffer can contact the limiting plate as the vehicle body moves.

10. The automatic watering and ventilation device inside the box girder according to claim 9, characterized in that, The ventilation assembly includes several ventilation fans, which are electrically connected to the transducer; the transducer is a permanent magnet generator.

Images