Prefabricated box girder maintenance system

Abstract

The utility model relates to a prefabricated box girder maintenance system. The prefabricated box girder maintenance system comprises supports, a top face spraying device, side face spraying devices, an internal spraying device, a water supply device and a control device, the supports are symmetrically arranged on the two sides of the prefabricated box girder in the length direction of the prefabricated box girder, and the top face spraying device is arranged at the tops of the supports; the top face spraying device is arranged on the prefabricated box girder, the side face spraying devices are arranged on the two sides of the prefabricated box girder and connected with the support respectively, the internal spraying device is arranged in a cavity of the prefabricated box girder and connected with the support, and the top face spraying device, the side face spraying devices and the internal spraying device are connected with the water supply device respectively. The control device is electrically connected with the top face spraying device, the side face spraying device, the internal spraying device and the water supply device. The prefabricated box girder maintenance system can achieve all-directional maintenance of the prefabricated box girder.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated beam maintenance, in particular to a prefabricated box beam maintenance system. Background Art

[0002] The prefabricated box beam has a cavity, which runs through both ends of the prefabricated box beam along the length direction of the prefabricated box beam. After the prefabricated box beam is cast, all inner and outer surfaces of the prefabricated box beam except the bottom surface need to be sprayed for curing. The existing spray curing methods include manual spray curing and equipment spray curing. Since manual spray curing is inefficient and the labor intensity of workers is high, more and more equipment is used to spray the prefabricated box beam. However, the existing spray curing equipment cannot fully spray the inner and outer surfaces of the prefabricated box beam and the two ends of the prefabricated box beam. Utility Model Content

[0003] In order to solve the technical problem that the above-mentioned existing spray curing equipment cannot comprehensively perform spray curing on the inner and outer surfaces and the two ends of the prefabricated box girder, the utility model provides a prefabricated box girder curing system, which sprays water on the inner and outer surfaces and end faces of the prefabricated box girder by arranging a top surface spray device, a side spray device, an internal spray device, a water supply device and a control device, thereby realizing all-round curing of the prefabricated box girder, greatly improving the curing effect of the prefabricated box girder, and by arranging an adjustment unit, the prefabricated box girder curing system can adjust the position of the first branch pipe and the angle of the first nozzle according to the actual situation of the prefabricated box girder, thereby realizing spray curing of the end face of the prefabricated box girder, thereby improving the applicability of the prefabricated box girder curing system.

[0004] The utility model provides a prefabricated box beam maintenance system, including a bracket, a top surface spray device, a side spray device, an internal spray device, a water supply device and a control device, wherein there are two brackets, and the two brackets are symmetrically arranged on both sides of the prefabricated box beam along the length direction of the prefabricated box beam, the top surface spray device is arranged on the top of the two brackets, the side spray devices are symmetrically arranged on both sides of the prefabricated box beam along the length direction of the prefabricated box beam and are respectively connected to the brackets, the internal spray device is arranged in the cavity of the prefabricated box beam and is connected to the brackets, the top surface spray device, the side spray device and the internal spray device are respectively connected to the water supply device, and the control device is electrically connected to the top surface spray device, the side spray device, the internal spray device and the water supply device respectively; the top surface spray device includes a fixing frame, an adjusting unit, a first water supply pipe, a first branch pipe, a second branch pipe, a first spray The first water supply pipe is arranged on one side of the fixed frame along the length direction of the prefabricated box girder, the first branch pipe is arranged close to the two ends of the first water supply pipe, and the two ends of the first branch pipe pass through the two ends of the adjustable unit respectively, one end of the first branch pipe is connected to the end of the first water supply pipe through a hose, the other end of the first branch pipe is connected to the output shaft of the adjusting unit, the second branch pipe is evenly arranged between the two first branch pipes and are respectively connected to the first water supply pipe, the first nozzle is evenly arranged on the first branch pipe and the second branch pipe, and the first nozzle is arranged toward the prefabricated box girder, and the two ends of the connecting pipe are respectively connected to the first water supply pipe and the water supply device.

[0005] In a preferred embodiment of the prefabricated box girder maintenance system provided by the utility model, the adjusting unit includes a base plate, a connecting plate, an electric push rod, a mounting plate and a first driving motor, the base plate is arranged along the width of the prefabricated box girder and is connected to the fixing frame, the connecting plate is arranged on one side of the base plate close to the end of the prefabricated box girder, the electric push rod is arranged between the base plate and the connecting plate and is electrically connected to the control device, and the bottom of the electric push rod is connected to the base plate, the telescopic end of the electric push rod is connected to the connecting plate, the mounting plates are symmetrically arranged at the bottom of both ends of the connecting plate, the two ends of the first branch pipe respectively pass through the mounting plate and are respectively rotatably connected to the mounting plate, the first driving motor is fixedly arranged on the mounting plate away from the first water supply pipe and is electrically connected to the control device, and the output shaft of the first driving motor is connected to the end of the first branch pipe.

[0006] In a preferred embodiment of the prefabricated box girder maintenance system provided by the utility model, sliders are respectively provided at both ends of the connecting plate, and sliding grooves corresponding to the sliders are respectively provided on both sides of the fixing frame, and the sliders are slidably connected in the sliding grooves.

[0007] In a preferred embodiment of the prefabricated box girder maintenance system provided by the utility model, the length of the sliding block is not less than the width of the connecting plate.

[0008] In a preferred embodiment of the prefabricated box girder maintenance system provided by the utility model, when the electric push rod is at the maximum stroke, the sliding block is partially accommodated in the sliding groove.

[0009] In a preferred embodiment of the prefabricated box girder maintenance system provided by the utility model, there are two electric push rods, and the two electric push rods are arranged in parallel and spaced apart and are electrically connected to the control device respectively.

[0010] In a preferred embodiment of the prefabricated box girder maintenance system provided by the utility model, the adjusting unit also includes a support rod, which is arranged parallel to the first branch pipe, and the two ends of the support rod are respectively fixedly connected to the mounting plate, and a plurality of support blocks are evenly arranged on the support rod, and the top of the support block is provided with an arc-shaped groove for accommodating the first branch pipe.

[0011] In a preferred embodiment of the prefabricated box girder maintenance system provided by the utility model, the side spray device includes a second water supply pipe, a third water supply pipe, a fourth water supply pipe, a second drive motor and a second nozzle, one end of the second water supply pipe, the third water supply pipe and the fourth water supply pipe are respectively sealed, and the other ends are respectively connected to the water supply device through a hose, and the second water supply pipe, the third water supply pipe and the fourth water supply pipe are all arranged along the length direction of the prefabricated box girder, the second water supply pipe, the third water supply pipe and the fourth water supply pipe are arranged from top to bottom close to the upper end, the middle part and the lower end of the prefabricated box girder, the second water supply pipe and the fourth water supply pipe are respectively fixedly connected to the bracket, the third water supply pipe is rotatably connected to the bracket through a bearing, and the sealed end of the third water supply pipe is connected to the output shaft of the second drive motor, the second drive motor is fixedly connected to the bracket and electrically connected to the control device, the second nozzles are respectively evenly arranged on the second water supply pipe, the third water supply pipe and the fourth water supply pipe, and the second nozzle is arranged toward the prefabricated box girder.

[0012] In a preferred embodiment of the prefabricated box girder maintenance system provided by the utility model, the internal spray device includes a support frame, a support plate, a fifth water supply pipe, a third drive motor and a third nozzle, the support frame is arranged at both ends of the prefabricated box girder in parallel along the width direction of the prefabricated box girder, and the two ends of the support frame are respectively connected to the bracket; the support plate is arranged in the middle of the top of the support frame; one end of the fifth water supply pipe is closed, and the other end is connected to the water supply device through a hose, and the two ends of the fifth water supply pipe respectively pass through the support plate and are respectively rotatably connected to the support plate, and the sealed end of the fifth water supply pipe is connected to the output shaft of the third drive motor; the third drive motor is fixedly connected to the support plate and electrically connected to the control device; the third nozzle is evenly arranged on the fifth water supply pipe, and the third nozzle is arranged toward the prefabricated box girder.

[0013] Compared with the prior art, the prefabricated box girder maintenance system provided by the utility model has the following beneficial effects: by arranging a top surface spray device, a side spray device, an internal spray device, a water supply device and a control device, water is sprayed on the inner and outer surfaces and end faces of the prefabricated box girder, thereby realizing all-round maintenance of the prefabricated box girder, greatly improving the maintenance effect of the prefabricated box girder, and by arranging an adjustment unit, the prefabricated box girder maintenance system can adjust the position of the first branch pipe and the angle of the first nozzle according to the actual situation of the prefabricated box girder, thereby realizing spray maintenance of the end face of the prefabricated box girder, thereby improving the applicability of the prefabricated box girder maintenance system. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0015] Figure 1 It is a schematic diagram of the overall structure of the prefabricated box girder maintenance system provided by the utility model;

[0016] Figure 2 yes Figure 1 The structural schematic diagram of the top surface spray device shown;

[0017] Figure 3 yes Figure 2 An enlarged view of point A is shown;

[0018] Figure 4 yes Figure 1 The installation diagram of the bracket and the side spray device is shown;

[0019] Figure 5yes Figure 1 A schematic diagram of the structure of the internal spray device shown;

[0020] Figure 6 It is a schematic diagram of pipeline connection of the prefabricated box girder maintenance system provided by the utility model;

[0021] Figure 7 It is a structural frame diagram of the prefabricated box beam maintenance system provided by the utility model. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Please also read Figure 1 , Figure 6 and Figure 7 ,in, Figure 1 It is a schematic diagram of the overall structure of the prefabricated box girder maintenance system provided by the utility model; Figure 6 It is a schematic diagram of pipeline connection of the prefabricated box girder maintenance system provided by the utility model; Figure 7 It is a structural frame diagram of the prefabricated box beam maintenance system provided by the utility model. The prefabricated box girder maintenance system includes a bracket 11, a top surface spray device 12, a side spray device 13, an internal spray device 14, a water supply device 15 and a control device 16. There are two brackets 11, and the two brackets 11 are symmetrically arranged on both sides of the prefabricated box girder 21 along the length direction of the prefabricated box girder 21. The top surface spray device 12 is arranged on the top of the two brackets 11, and the side spray device 13 is symmetrically arranged on both sides of the prefabricated box girder 21 along the length direction of the prefabricated box girder 21 and is respectively connected to the bracket 11. The internal spray device 14 is arranged in the cavity of the prefabricated box girder 21 and is connected to the bracket 11. The top surface spray device 12, the side spray device 13 and the internal spray device 14 are respectively connected to the water supply device 15, and the control device 16 is electrically connected to the top surface spray device 12, the side spray device 13, the internal spray device 14 and the water supply device 15.

[0024] Please also read Figure 2 , Figure 3 and Figure 6 ,in, Figure 2 yes Figure 1 The structural schematic diagram of the top surface spray device shown; Figure 3 yes Figure 2An enlarged view of point A is shown; Figure 6 It is a schematic diagram of the pipeline connection of the prefabricated box girder maintenance system provided by the utility model. The top surface spray device 12 includes a fixing frame 121, an adjusting unit 122, a first water supply pipe 123, a first branch pipe 124, a second branch pipe 125, a first nozzle 126 and a connecting pipe 127. The fixing frame 121 is arranged on the top of the two brackets 11. The adjusting unit 122 is arranged at both ends of the fixing frame 121 along the width of the prefabricated box girder 21 and is electrically connected to the control device 16 respectively. The first water supply pipe 123 is arranged on one side of the fixing frame 121 along the length direction of the prefabricated box girder 21. The first branch pipe 124 is arranged close to both ends of the first water supply pipe 123, and the two ends of the first branch pipe 124 are respectively connected. The first branch pipe 124 passes through the two ends of the regulating unit 122 respectively, one end of the first branch pipe 124 is connected to the end of the first water supply pipe 123 through a hose, the other end of the first branch pipe 124 is connected to the output shaft of the regulating unit 122, the second branch pipe 125 is evenly arranged between the two first branch pipes 124 and are respectively connected to the first water supply pipe 123, the first nozzles 126 are evenly arranged on the first branch pipe 124 and the second branch pipe 125, and the first nozzles 126 are arranged toward the prefabricated box girder 21, and the two ends of the connecting pipe 127 are respectively connected to the first water supply pipe 123 and the water supply device 15.

[0025] The adjusting unit 122 includes a bottom plate 1221, a connecting plate 1222, an electric push rod 1223, a mounting plate 1224 and a first driving motor 1225. The bottom plate 1221 is arranged along the width of the prefabricated box beam 21 and is connected to the fixing frame 121. The connecting plate 1222 is arranged on one side of the bottom plate 1221 close to the end of the prefabricated box beam 21. The electric push rod 1223 is arranged between the bottom plate 1221 and the connecting plate 1222 and is electrically connected to the control device 16. The bottom of the electric push rod 1223 is connected to the bottom plate 1221, and the telescopic end of the electric push rod 1223 is connected to the connecting plate 1222. The mounting plates 1224 are symmetrically arranged at the bottoms of both ends of the connecting plate 1222. The two ends of the first branch pipe 124 respectively pass through the mounting plate 1224 and are respectively rotatably connected to the mounting plate 1224. The first driving motor 1 225 is fixedly arranged on the mounting plate 1224 away from the first water supply pipe 123 and is electrically connected to the control device 16, and the output shaft of the first drive motor 1225 is connected to the end of the first branch pipe 124; the connecting plate 1222 is pushed to move by the electric push rod 1223, and the connecting plate 1222 drives the mounting plate 1224 to move, thereby moving the first branch pipe 124 to an appropriate position, and then the first drive motor 1225 drives the first branch pipe 124 to rotate, so that the first nozzle 126 on the first branch pipe 124 faces the end face of the prefabricated box girder 21, so that the prefabricated box girder maintenance system can adjust the position of the first branch pipe 124 and the angle of the first nozzle 126 according to the actual situation of the prefabricated box girder 21, thereby realizing spray maintenance of the end face of the prefabricated box girder 21, thereby improving the applicability of the prefabricated box girder maintenance system.

[0026] Slide blocks 1226 are respectively provided at both ends of the connecting plate 1222, and slide grooves 1211 corresponding to the slide blocks 1226 are respectively provided on both sides of the fixing frame 121, the slide blocks 1226 are slidably connected in the slide grooves 1211, and the length of the slide blocks 1226 is not less than the width of the connecting plate 1222, and when the electric push rod 1223 is at the maximum stroke, the slide block 1226 is partially accommodated in the slide groove 1211; through the mutual cooperation between the slide block 1226 and the slide groove 1211, the stability of the electric push rod 1223 when pushing the connecting plate 1222 can be improved, and a certain support can be provided to the connecting plate 1222.

[0027] There are two electric push rods 1223 , which are arranged in parallel and spaced apart and are electrically connected to the control device 16 respectively, so as to further improve the stability of the electric push rods 1223 when pushing the connecting plate 1222 .

[0028] The adjusting unit 122 also includes a support rod 1227, which is arranged parallel to the first branch pipe 124, and the two ends of the support rod 1227 are respectively fixedly connected to the mounting plate 1224, and a plurality of support blocks 1228 are evenly arranged on the support rod 1227, and the top of the support block 1228 is provided with an arc-shaped groove for accommodating the first branch pipe 124; by arranging the support rod 1227 and the support block 1228, the stability of the spraying of the first branch pipe 124 and the first nozzle 126 on the first branch pipe 124 is improved.

[0029] Please also read Figure 4 and Figure 6 ,in, Figure 4 yes Figure 1 The installation diagram of the bracket and the side spray device is shown; Figure 6 It is a schematic diagram of the pipeline connection of the prefabricated box girder maintenance system provided by the utility model. The side spray device 13 includes a second water supply pipe 131, a third water supply pipe 132, a fourth water supply pipe 133, a second drive motor 134 and a second nozzle 135. One end of the second water supply pipe 131, the third water supply pipe 132 and the fourth water supply pipe 133 are sealed respectively, and the other ends are connected to the water supply device 15 through a hose respectively, and the second water supply pipe 131, the third water supply pipe 132 and the fourth water supply pipe 133 are all arranged along the length direction of the prefabricated box girder 21. The second water supply pipe 131, the third water supply pipe 132 and the fourth water supply pipe 133 are arranged from top to bottom close to the upper end, the middle part and the lower end of the prefabricated box girder 21 in sequence. The second water supply pipe 131 and the fourth water supply pipe 133 are respectively sealed at one end and the other end is connected to the water supply device 15 through a hose. The second water supply pipe 131, the third water supply pipe 132 ... 33 are respectively fixedly connected to the bracket 11, the third water supply pipe 132 is rotatably connected to the bracket 11 through a bearing 22, and the sealed end of the third water supply pipe 132 is connected to the output shaft of the second drive motor 134, the second drive motor 134 is fixedly connected to the bracket 11 and electrically connected to the control device 16, the second nozzles 135 are respectively evenly arranged on the second water supply pipe 131, the third water supply pipe 132 and the fourth water supply pipe 133, and the second nozzles 135 are arranged toward the prefabricated box girder 21; the third water supply pipe 132 is driven to rotate reciprocatingly by the second drive motor 134, which can effectively increase the spraying area of ​​the second nozzle 135 on the third water supply pipe 132.

[0030] Please also read Figure 5 and Figure 6 ,in, Figure 5 yes Figure 1 A schematic diagram of the structure of the internal spray device shown; Figure 6It is a schematic diagram of the pipeline connection of the prefabricated box girder maintenance system provided by the utility model. The internal spray device 14 includes a support frame 141, a support plate 142, a fifth water supply pipe 143, a third drive motor 144 and a third nozzle 145. The support frame 141 is arranged at both ends of the prefabricated box girder 21 in parallel along the width direction of the prefabricated box girder 21, and the two ends of the support frame 141 are respectively connected to the bracket 11; the support plate 142 is arranged in the middle of the top of the support frame 141; one end of the fifth water supply pipe 143 is closed, and the other end is connected to the water supply device 15 through a hose, and the two ends of the fifth water supply pipe 143 pass through the support plate 142 respectively and are rotatably connected to the support plate 142 respectively, and the fifth water supply pipe 143 is sealed. The sealing end is connected to the output shaft of the third drive motor 144; the third drive motor 144 is fixedly connected to the support plate 142 and electrically connected to the control device 16; the third nozzle 145 is evenly arranged on the fifth water supply pipe 143, and the third nozzle 145 is arranged toward the prefabricated box girder 21; the fifth water supply pipe 143 is driven to reciprocate by the third drive motor 144, so that the water flow entering the fifth water supply pipe 143 is sprayed on the top surface, bottom surface and side surface of the cavity of the prefabricated box girder 21 through the third nozzle 145, that is, sprayed on the inner surface of the prefabricated box girder 21, to achieve spray maintenance of the inner surface of the prefabricated box girder 21.

[0031] Before spraying and curing the prefabricated box girder 21, the bracket 11 is first placed on both sides of the prefabricated box girder 21, and then the top spray device 12, the side spray device 13 and the internal spray device 14 are installed in corresponding positions, and then the first water supply pipe 123, the second water supply pipe 131, the third water supply pipe 132, the fourth water supply pipe 133, and the fifth water supply pipe 143 are respectively connected to the water supply device 15 through a hose, and the electric push rod 1223, the first drive motor 1225, the second drive motor 134, the third drive motor 144 and the water supply device 15 are respectively electrically connected to the control device 16; during the spraying and curing, the control device 16 controls the water supply device 15 to supply water to the first water supply pipe 123, the second water supply pipe 131, The third water supply pipe 132, the fourth water supply pipe 133 and the fifth water supply pipe 143 supply water, and the water is sprayed on the inner and outer surfaces of the prefabricated box girder 21 through the first nozzle 126, the second nozzle 135 and the third nozzle 145. At the same time, the control device 16 controls the electric push rod 1223 to push the connecting plate 1222 to move, and the connecting plate 1222 drives the mounting plate 1224 to move, thereby moving the first branch pipe 124 to an appropriate position, and then driving the first branch pipe 124 to rotate through the first drive motor 1225, so that the first nozzle 126 on the first branch pipe 124 faces the end face of the prefabricated box girder 21, and sprays water on the end face of the prefabricated box girder 21, thereby realizing all-round maintenance of the prefabricated box girder 21, and greatly improving the maintenance effect of the prefabricated box girder 21.

[0032] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A prefabricated box girder maintenance system, characterized in that: The invention comprises a support (11), a top surface spraying device (12), a side spraying device (13), an internal spraying device (14), a water supply device (15) and a control device (16), wherein the support (11) is two, and the two supports (11) are symmetrically arranged on both sides of the prefabricated box beam (21) along the length direction of the prefabricated box beam (21), the top surface spraying device (12) is arranged on the top of the two supports (11), the side spraying device (13) is symmetrically arranged on both sides of the prefabricated box beam (21) along the length direction of the prefabricated box beam (21) and is respectively connected to the support (11), and the internal spraying device (14) is arranged on the prefabricated box beam (21). The top surface spray device (12), the side spray device (13), and the internal spray device (14) are respectively connected to the water supply device (15); the control device (16) is respectively electrically connected to the top surface spray device (12), the side spray device (13), the internal spray device (14), and the water supply device (15); the top surface spray device (12) comprises a fixing frame (121), an adjusting unit (122), a first water supply pipe (123), a first branch pipe (124), a second branch pipe (125), a first spray head (126), and a connecting pipe ( 127), the fixing frame (121) is arranged on the top of the two brackets (11), the adjusting unit (122) is arranged at both ends of the fixing frame (121) along the width of the prefabricated box beam (21) and is respectively electrically connected to the control device (16), the first water supply pipe (123) is arranged on one side of the fixing frame (121) along the length direction of the prefabricated box beam (21), the first branch pipe (124) is respectively arranged near both ends of the first water supply pipe (123), and both ends of the first branch pipe (124) respectively pass through both ends of the adjusting unit (122), and one end of the first branch pipe (124) passes through a hose The first branch pipe (124) is connected to the end of the first water supply pipe (123), the other end of the first branch pipe (124) is connected to the output shaft of the regulating unit (122), the second branch pipe (125) is evenly arranged between the two first branch pipes (124) and respectively connected to the first water supply pipe (123), the first nozzle (126) is evenly arranged on the first branch pipe (124) and the second branch pipe (125), and the first nozzle (126) is arranged toward the prefabricated box girder (21), and the two ends of the connecting pipe (127) are respectively connected to the first water supply pipe (123) and the water supply device (15).

2. The prefabricated box girder maintenance system according to claim 1, characterized in that: The adjusting unit (122) comprises a bottom plate (1221), a connecting plate (1222), an electric push rod (1223), a mounting plate (1224) and a first driving motor (1225); the bottom plate (1221) is arranged along the width of the prefabricated box beam (21) and is connected to the fixing frame (121); the connecting plate (1222) is arranged on one side of the bottom plate (1221) close to the end of the prefabricated box beam (21); the electric push rod (1223) is arranged between the bottom plate (1221) and the connecting plate (1222) and is electrically connected to the control device (16); and the bottom of the electric push rod (1223) is connected to the bottom plate (1221), the telescopic end of the electric push rod (1223) is connected to the connecting plate (1222), the mounting plates (1224) are symmetrically arranged at the bottom of both ends of the connecting plate (1222), the two ends of the first branch pipe (124) respectively pass through the mounting plates (1224) and are respectively rotatably connected to the mounting plates (1224), the first drive motor (1225) is fixedly arranged on the mounting plate (1224) away from the first water supply pipe (123) and is electrically connected to the control device (16), and the output shaft of the first drive motor (1225) is connected to the end of the first branch pipe (124).

3. The prefabricated box beam maintenance system according to claim 2, characterized in that: Slide blocks (1226) are respectively provided at both ends of the connecting plate (1222), and slide grooves (1211) corresponding to the slide blocks (1226) are respectively provided at both sides of the fixing frame (121), and the slide blocks (1226) are slidably connected in the slide grooves (1211).

4. The prefabricated box beam maintenance system according to claim 3, characterized in that: The length of the slider (1226) is not less than the width of the connecting plate (1222).

5. The prefabricated box beam maintenance system according to claim 4, characterized in that: When the electric push rod (1223) is at its maximum stroke, the slider (1226) is partially accommodated in the slide groove (1211).

6. The prefabricated box beam maintenance system according to claim 2, characterized in that: There are two electric push rods (1223), which are arranged in parallel and spaced apart and are electrically connected to the control device (16) respectively.

7. The prefabricated box beam maintenance system according to claim 2, characterized in that: The adjustment unit (122) also includes a support rod (1227), which is arranged parallel to the first branch pipe (124), and the two ends of the support rod (1227) are respectively fixedly connected to the mounting plate (1224), and a plurality of support blocks (1228) are evenly arranged on the support rod (1227), and the top of the support block (1228) is provided with an arc-shaped groove for accommodating the first branch pipe (124).

8. The prefabricated box beam maintenance system according to claim 1, characterized in that: The side spray device (13) comprises a second water supply pipe (131), a third water supply pipe (132), a fourth water supply pipe (133), a second drive motor (134) and a second spray head (135); one end of the second water supply pipe (131), the third water supply pipe (132) and the fourth water supply pipe (133) are respectively sealed, and the other ends are respectively connected to the water supply device (15) through a hose; and the second water supply pipe (131), the third water supply pipe (132) and the fourth water supply pipe (133) are all arranged along the length direction of the prefabricated box girder (21); the second water supply pipe (131), the third water supply pipe (132) and the fourth water supply pipe (133) are successively close to the prefabricated box girder (21) from top to bottom. The second water supply pipe (131) and the fourth water supply pipe (133) are respectively fixedly connected to the bracket (11); the third water supply pipe (132) is rotatably connected to the bracket (11) through a bearing, and the sealed end of the third water supply pipe (132) is connected to the output shaft of the second drive motor (134); the second drive motor (134) is fixedly connected to the bracket (11) and electrically connected to the control device (16); the second nozzles (135) are respectively evenly arranged on the second water supply pipe (131), the third water supply pipe (132) and the fourth water supply pipe (133), and the second nozzles (135) are arranged toward the prefabricated box girder (21).

9. The prefabricated box beam maintenance system according to claim 1, characterized in that: The internal spray device (14) comprises a support frame (141), a support plate (142), a fifth water supply pipe (143), a third drive motor (144) and a third spray head (145); the support frame (141) is arranged at both ends of the prefabricated box beam (21) in parallel along the width direction of the prefabricated box beam (21), and the two ends of the support frame (141) are respectively connected to the bracket (11); the support plate (142) is arranged in the middle of the top of the support frame (141); one end of the fifth water supply pipe (143) is closed, and the other end is connected to the water supply pipe (143) through a hose. The control device (15) is connected to the fifth water supply pipe (143), and both ends of the fifth water supply pipe (143) respectively pass through the support plate (142) and are respectively rotatably connected to the support plate (142), and the sealed end of the fifth water supply pipe (143) is connected to the output shaft of the third drive motor (144); the third drive motor (144) is fixedly connected to the support plate (142) and electrically connected to the control device (16); the third nozzle (145) is evenly arranged on the fifth water supply pipe (143), and the third nozzle (145) is arranged toward the prefabricated box girder (21).

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