Cast-in-place box girder maintenance spraying device
The modular rail track and car system with a spray unit addresses the challenges of high-altitude concrete box girder maintenance by providing automated and controlled water application, enhancing safety and efficiency.
Patent Information
- Application Number
- CN202422236284.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-12
AI Technical Summary
The maintenance operation of cast-in-place box beams is difficult and has safety hazards. The spraying effect is uncontrollable and the labor intensity is high. It is difficult to achieve effective humidity control in high altitude environments.
A cast-in-place box girder maintenance spraying device is designed, using assembled tracks and track trolleys, equipped with spray trucks, equipped with water storage tanks and water pumps, and water supply through pipelines to realize automated spraying, and combined with heating sleeves to provide steam maintenance in a low-temperature environment.
Automatic spray maintenance on the surface of the box girder is realized, which reduces the labor intensity of construction workers, improves the reliability and stability of spray work, and ensures effective humidity control in high altitude environments.
Smart Images
Figure CN223103497U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of box girder bridge deck maintenance, in particular to a cast-in-place box girder maintenance spraying device. Background Technique
[0002] With the rapid development of urban construction, the traffic pressure in cities across the country has risen linearly, and the expressways have emerged as the times require, resulting in an increasing number of municipal viaducts. The beam surface width has gradually evolved from the initial two-way four-lane to the current two-way eight-lane, increasing the construction and maintenance difficulties.
[0003] In the construction of bridge engineering, the maintenance operation after the cast-in-place box girder is poured is extremely critical. Whether the maintenance operation is timely and effective directly affects the quality of the cast-in-place box girder concrete. However, because the cast-in-place box girder is erected in the air, it causes difficulties and certain dangers in the maintenance operation.
[0004] The existing maintenance of cast-in-place box girders generally uses geotextiles to cover and artificial watering for moisturizing. The spraying effect is uncontrollable, the labor intensity is high, and there are also potential safety hazards. Content of the Utility Model
[0005] The purpose of the utility model is to solve the defects existing in the prior art, and to propose a cast-in-place box girder maintenance spraying device.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0007] A cast-in-place box girder maintenance spraying device includes assembled tracks and track trolleys. There are two groups of the track trolleys. A cross track is erected on the upper sides of the two groups of track trolleys. A spraying vehicle is arranged on the upper side of the cross track. A water storage tank is arranged on the upper side of the spraying vehicle. A spraying component is arranged on the upper side of the water storage tank. One side of the spraying vehicle is connected with a pipeline. A bracket is arranged on the spraying vehicle. The pipeline is suspended at the top of the bracket. The spraying component includes a spraying pipe, a nozzle and a water pump. A rotary joint is connected to the outlet of the water pump. The rotary joint is connected with the spraying pipe. An adjusting frame is arranged on one side of the spraying pipe. A telescopic rod corresponding to the adjusting frame is arranged on the water pump.
[0008] Preferably, a machine base is arranged on the top of the water storage tank. The water pump is installed on the upper side of the machine base and is rotationally connected therebetween. A control module is arranged inside the machine base.
[0009] Preferably, the pipeline includes a signal line, a power line and a water supply pipe. The signal line and the power line are electrically connected with the control module. The water supply pipe is communicated with the water storage tank.
[0010] Preferably, a heating sleeve is arranged in the middle of the spraying pipe. The heating sleeve is electrically connected with the control module. A one-way valve is arranged at one end of the spraying pipe close to the rotary joint.
[0011] Preferably, a long hole is formed in the adjusting frame, a sliding pin adapted to the long hole is provided at the top end of the telescopic rod, and the sliding pin is movably connected to the long hole.
[0012] Preferably, the water pump communicates with the water storage tank, and the water pump communicates with the spray pipe through a rotary joint.
[0013] The beneficial effects of the present utility model are as follows:
[0014] Compared with the prior art, the present utility model erects an assembly track and a cross track on the box girder, realizes the movement on the horizontal plane through the track trolley and the spray trolley, and cooperates with the water pump and the spray pipe to complete the automatic spray maintenance of the bridge deck, without the need for construction workers to frequently climb to high places for maintenance. At the same time, a water storage tank is provided, and water is supplied through pipelines, improving the reliability and stability of the spray work. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a three-dimensional general assembly structure schematic diagram of a cast-in-place box girder maintenance spray device proposed by the present utility model;
[0016] Figure 2 is a three-dimensional structure schematic diagram of the spray trolley of a cast-in-place box girder maintenance spray device proposed by the present utility model;
[0017] Figure 3 is Figure 2 a partial enlarged schematic diagram of part A in
[0018] In the figure: 1, pipeline; 2, assembly track; 3, track trolley; 4, cross track; 5, spray trolley; 51, bracket; 52, seat; 6, water storage tank; 7, spray assembly; 71, heating sleeve; 72, spray pipe; 73, nozzle; 74, water pump; 75, adjusting frame; 76, telescopic rod; 8, rotary joint. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present utility model and its application or use. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0020] Refer to Figures 1-3, a cast-in-place box girder curing spraying device, including an assembled track 2 and a track trolley 3. The assembled track 2 is laid on the box girder, and the track trolley 3 slides longitudinally on the assembled track 2 to adjust the spraying and curing position. There are two sets of track trolleys 3, and the distance between the two sets of track trolleys 3 is adjusted according to the width of the box girder. A cross track 4 is erected above the two sets of track trolleys 3, and a spraying vehicle 5 is provided above the cross track 4. The spraying vehicle 5 moves horizontally on the cross track 4, forming movements in two directions on a plane, so as to realize the spraying and curing of the surface of the box girder within the range;
[0021] A water storage tank 6 is provided above the spraying vehicle 5 for temporarily storing water to ensure continuous spraying. One side of the spraying vehicle 5 is connected with a pipeline 1. The pipeline 1 includes a signal line, a power line and a water supply pipe. The water supply pipe is communicated with the water storage tank 6 for timely supplementing the spraying water, improving the working duration of the equipment, and ensuring the working efficiency of the spraying and curing. A bracket 51 is provided on the spraying vehicle 5, and the pipeline 1 is suspended at the top of the bracket 51. A roller is arranged at the top of the bracket 51 to protect the pipeline 1. Suspending the pipeline 1 can effectively prevent the pipeline 1 from being wound and affecting the movement of the track trolley 3 and the spraying vehicle 5;
[0022] A spraying assembly 7 is provided above the water storage tank 6. The spraying assembly 7 includes a spraying pipe 72, a spray head 73 and a water pump 74. A machine base 52 is arranged at the top of the water storage tank 6, and the water pump 74 is installed above the machine base 52 and is rotatably connected therebetween. A control module is arranged inside the machine base 52 to realize various functions through a single-chip microcomputer, control the operation of the equipment, and the signal line and the power line are electrically connected to the control module to transmit control signals and provide power;
[0023] A rotary joint 8 is connected to the outlet of the water pump 74. The two connecting pipes of the rotary joint 8 can rotate relative to each other, and the rotating part is sealed. The rotary joint 8 is connected to the spraying pipe 72. The water pump 74 is communicated with the water storage tank 6, and the water pump 74 is communicated with the spraying pipe 72 through the rotary joint 8. The water pump 74 draws clear water in the water storage tank 6, pumps it into the spraying pipe 72, and finally sprays it out through the spray head 73;
[0024] In addition, a heating sleeve 71 can be arranged in the middle of the spraying pipe 72. In winter, the clear water inside the spraying pipe 72 is heated to prevent the spraying pipe 72 from freezing. At the same time, it can be used to generate steam for steam curing of the concrete surface. The heating sleeve 71 is electrically connected to the control module for automatic control. A one-way valve is arranged at one end of the spraying pipe 72 close to the rotary joint 8 to prevent the clear water from flowing back into the water storage tank 6 after heating;
[0025] On one side of the spray pipe 72, an adjusting frame 75 is fixedly provided. On the water pump 74, a telescopic rod 76 corresponding to the adjusting frame 75 is provided. A long hole is formed in the adjusting frame 75. At the top of the telescopic rod 76, a sliding pin adapted to the long hole is provided. The sliding pin is movably connected to the long hole. The sliding pin slides in the long hole. By adjusting the height of the telescopic rod 76, the adjusting frame 75 is pulled by means of the sliding pin, and the pitching angle of the spray pipe 72 is changed, so as to change the spraying effect.
[0026] In this embodiment, the construction workers lay and assemble the track 2 on the box girder, erect the track trolley 3 and the cross track 4, place the spray vehicle 5, tow the pipeline 1, install the equipment, supply water and power through the pipeline 1 to ensure that the spray vehicle 5 starts to work. The clear water is stored in the water storage tank 6 to ensure continuous water supply and improve the spraying reliability. The water pump 74 pumps the clear water and sends it into the spray pipe 72 through the rotary joint 8, and sprays it out through the nozzle 73;
[0027] The spray vehicle 5 slides horizontally on the cross track 4, and the track trolley 3 slides longitudinally along the box girder on the assembled track 2, and cooperates with the nozzle 73 to carry out the spraying and curing work;
[0028] In addition, when the temperature is lower than a certain limit value, the cement hydration reaction will no longer proceed, and the concrete strength will stop developing. This temperature is about -10°C. Actually, when the temperature is lower than 0°C, the water in the concrete has begun to freeze, which will cause freeze damage to the concrete. Therefore, the concrete curing in the low-temperature environment in winter requires the help of steam;
[0029] In winter, the spray pipe 72 can be heated by the heating sleeve 71 to form steam, and the surface of the box girder is heated and humidified for wet heat curing.
[0030] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.
[0031] It should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0032] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present utility model. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn according to actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.
Claims
1. A cast-in-place box girder curing spraying device, comprising an assembled track (2) and a track trolley (3), characterized in that, There are two sets of the rail trolleys (3). A cross rail (4) is erected above the two sets of rail trolleys (3). A spraying vehicle (5) is arranged above the cross rail (4). A water storage tank (6) is arranged above the spraying vehicle (5). A spraying assembly (7) is arranged above the water storage tank (6). One side of the spraying vehicle (5) is connected with a pipeline (1). A bracket (51) is arranged on the spraying vehicle (5). The pipeline (1) is suspended at the top of the bracket (51). The spraying assembly (7) includes a spraying pipe (72), a spray head (73) and a water pump (74). A rotary joint (8) is connected to the outlet of the water pump (74). The rotary joint (8) is connected with the spraying pipe (72). An adjusting frame (75) is arranged on one side of the spraying pipe (72). A telescopic rod (76) corresponding to the adjusting frame (75) is arranged on the water pump (74).
2. The cast-in-place box girder curing spraying device according to claim 1, wherein, A machine base (52) is arranged at the top of the water storage tank (6). The water pump (74) is installed above the machine base (52) and is rotatably connected therebetween. A control module is arranged inside the machine base (52).
3. The cast-in-place box girder curing spraying device according to claim 2, characterized in that, The pipeline (1) includes a signal wire, a power wire and a water supply pipe. The signal wire and the power wire are electrically connected to the control module. The water supply pipe communicates with the water storage tank (6).
4. The cast-in-place box girder curing spray device according to claim 3, wherein A heating sleeve (71) is arranged in the middle of the spraying pipe (72). The heating sleeve (71) is electrically connected to the control module. A check valve is arranged at one end of the spraying pipe (72) close to the rotary joint (8).
5. A curing spraying device for cast-in-place box girders according to claim 1, characterized in that, A long hole is formed in the adjusting frame (75). A sliding pin adapted to the long hole is arranged at the top of the telescopic rod (76). The sliding pin is movably connected with the long hole.
6. The curing spraying device for cast-in-situ box girder according to claim 1, characterized in that, The water pump (74) communicates with the water storage tank (6). The water pump (74) communicates with the spraying pipe (72) through the rotary joint (8).