Cantilever Construction Hanging Basket Spraying Maintenance Equipment and Method

Abstract

The present invention relates to a cantilever construction hanging basket spray curing device and method, belonging to the technical field of the construction of a box girder cast in place by a hanging basket cantilever. A cantilever construction hanging basket spray curing device includes a U-shaped box sleeved on an outer longitudinal beam; outer spray devices are arranged on the side walls of the U-shaped box facing the outer side wall of the box girder and the lower side wall of the box girder wing plate; a U-shaped channel is formed in the U-shaped box; each outer spray device includes a nozzle and a control column located inside the nozzle; a central spray hole and an annular water outlet channel located on the outer circle of the central spray hole are formed in the nozzle; a horizontal hole is horizontally formed in the nozzle; both ends of the horizontal hole are communicated with the annular water outlet channel; the central spray hole is communicated with the U-shaped channel through the control column; the U-shaped channel is communicated with the horizontal hole through the control column; an inner spray device for spraying the inner cavity wall of the box girder is arranged on the inner longitudinal beam; a water supply device for supplying water to the outer spray device and the inner spray device is arranged on the outer formwork and the inner formwork.

Description

Technical Field

[0001] The present invention relates to a cantilever construction hanging basket spraying and curing device and method, and belongs to the technical field of the construction of box girders cast in place by hanging baskets in cantilever construction. Background Art

[0002] The cantilever construction hanging basket is an important structure in modern bridge construction, which mainly consists of a main truss system, a traveling system, an anchoring system, a formwork system and a suspension system. The formwork system includes an inner formwork and an outer formwork, and the suspension system includes an inner longitudinal beam located in the inner cavity of the inner formwork and an outer longitudinal beam located outside the outer formwork.

[0003] When using a cantilever construction hanging basket to build a box bridge, the service life of the box girder has gradually attracted attention. Among them, the appearance of cracks in the box girder will cause great harm to the bridge and affect the durability of the box girder structure, so it must be controlled. The thermal conductivity of concrete materials is very poor. Under the action of temperature changes caused by various factors, quite large deformations and stresses will occur inside the box girder structure, so the box girder needs to be cured.

[0004] In the prior art, the upper surface of the box girder is usually cured by artificial watering. However, it is very difficult to use artificial watering to cure the outer side wall and the inner cavity wall of the box girder, and the artificial curing has great randomness and poor continuity. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a cantilever construction hanging basket spraying and curing device and method to solve the technical problem of the difficulty of artificial curing of the outer side wall, bottom wall and inner cavity wall of the box girder in the prior art.

[0006] To achieve the above object, the present invention is realized through the following technical solutions:

[0007] A cantilever construction hanging basket spraying and curing device includes a U-shaped box sleeved on the outer longitudinal beam; outer spraying devices are arranged on the side walls of the U-shaped box facing the outer side wall of the box girder and the lower side wall of the box girder wing plate; a U-shaped channel is opened in the U-shaped box; each outer spraying device includes a nozzle and a control column located in the nozzle; a central spray hole and an annular water outlet channel located outside the central spray hole are opened in the nozzle; a horizontal hole is horizontally opened in the nozzle; both ends of the horizontal hole are communicated with the annular water outlet channel; the central spray hole is communicated with the U-shaped channel through the control column; the U-shaped channel is communicated with the horizontal hole through the control column; an inner spraying device for spraying the inner cavity wall of the box girder is arranged on the inner longitudinal beam; a water supply device for supplying water to the outer spraying device and the inner spraying device is arranged on the outer formwork and the inner formwork.

[0008] Based on the above-mentioned cantilever construction hanging basket spray curing equipment, the control column is provided with a first channel communicating with the central spray hole. Two second channels are respectively opened on the two sides of the control column adjacent to the horizontal hole, and the outer ends of the two second channels communicate with the horizontal hole; arc-shaped holes are opened at the upper parts of the two second channels close to the first channel, and the two second channels communicate with the first channel through the arc-shaped holes respectively; receiving grooves are opened on the left and right side walls of the first channel, and the receiving grooves are located above the arc-shaped holes. The front and rear side walls of each receiving groove are rotatably connected with a blocking block through a control motor. An arc-shaped edge is integrally formed on the side of the two blocking blocks facing each other, and a water stop edge parallel to the opening direction of the central spray hole is integrally formed below the arc-shaped edge.

[0009] Based on the above-mentioned cantilever construction hanging basket spray curing equipment, a side spray device for spraying the included angle between the outer side wall of the box girder and the lower side wall of the box girder wing plate is obliquely arranged on the return box; the side spray device includes a spray pipe communicating with the return channel; a pair of L-shaped fixing strips are symmetrically arranged on the side wall of the spray pipe; a return plate is rotatably connected between the two fixing strips through a rotating shaft; a torsion spring is arranged on the rotating shaft; there is a gap between one end of the return plate close to the fixing strip and the fixing strip; a grooved block is arranged on one side of one fixing strip close to the return plate; a sliding strip is slidably connected in the grooved block; one end of the sliding strip close to the return plate is rotatably connected with a linkage strip; the linkage strip is rotatably connected to one side of the return plate close to the fixing strip; a row of secondary teeth is arranged on the side wall of the sliding strip away from the return plate; a driving motor is arranged on the fixing strip; a disc is coaxially connected to the power end of the driving motor; main teeth partially meshing with the secondary teeth are symmetrically arranged on the circumferential side wall of the disc.

[0010] Based on the above-mentioned cantilever construction hanging basket spray curing equipment, the inner spray device includes a cylinder detachably arranged in the inner longitudinal beam; a rotating motor is coaxially connected to the cylinder; a curing pipe is vertically connected to the power end of the rotating motor; a plurality of spray holes communicating with the inside of the curing pipe are opened on the circumference of the curing pipe.

[0011] Based on the above-mentioned cantilever construction hanging basket spray curing equipment, the water supply device includes a first water supply tank arranged on the upper surface of the outer formwork and a second water supply tank arranged on the inner formwork; the first water supply tank and the second water supply tank are respectively communicated with the return box and the curing pipe.

[0012] Based on the above-mentioned cantilever construction hanging basket spray curing equipment, a moving device capable of driving the return box to move on the outer longitudinal beam is arranged between the return box and the outer longitudinal beam; the moving device includes support rods arranged on the four inner side walls of the return box; rollers are connected to the support rods; each roller is in contact with the side wall of the outer longitudinal beam.

[0013] A cantilever construction hanging basket spray curing method, using the above-mentioned cantilever construction hanging basket spray curing equipment, includes the following steps:

[0014] In the initial state, the blocking blocks are parallel to the first channel. Water is supplied to the loop-shaped box through the water supply device. The water flow passes through the loop-shaped channel, through the enlarged hole section, and then through the first channel and sprays out from the central spray hole to spray and maintain the positions opposite to the outer sidewall of the box girder and the lower sidewall of the box girder wing plate. After spraying for a period of time, the driving control motor is used to rotate the two blocking blocks relatively to complete the splicing. The water flow flows along the guide of the arc edge into the second channel and sprays out from the annular water outlet through the horizontal hole, so as to spray and maintain the lower sidewall of the box girder wing plate and the outer sidewall of the box girder around the position opposite to the central spray hole. At the same time, the inner spraying device can spray and maintain the inner cavity wall of the box girder.

[0015] The advantages of the present invention are as follows:

[0016] 1. Since in the initial state, the blocking blocks are in a state parallel to the central spray hole, when the water flow passes through the receiving groove, a small part of the water flow will flow along the arc-shaped sidewall, and then flow along the arc-shaped edge of the blocking block in the vertical direction close to the central spray hole. Since most of the water flow is flowing out from the loop-shaped channel towards the central spray hole, the small part of the water flow flowing out from the arc-shaped edge is made to return to the flowing direction of most of the water flow. The arc-shaped sidewall, the arc-shaped edge and the water flow flowing out from the loop-shaped channel towards the central spray hole cooperate with each other, so that the small part of the water flow flowing through this place forms a cycle, thereby accelerating the spraying speed of the water flow, increasing the impact force of the scouring point, and being able to expand the sputtering range centered on the scouring point, thus increasing the maintenance area;

[0017] 2. The torsion spring and the driving motor cooperate with each other to make the loop-shaped plate deflect repeatedly, so that the water flow sprayed out from the spray holes is in a continuous conversion between normal circulation and interrupted circulation. During this process, when the water flow passes through normally, the sputtering range is limited. Through the cooperation of the torsion spring and the driving motor, the normal circulation state of the water flow is interrupted. When the water flow hits the loop-shaped plate, the sputtering direction of the water flow will be changed, thereby expanding the spray maintenance area. Description of the Drawings

[0018] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for description:

[0019] Figure 1 It is the practical application diagram of the present invention;

[0020] Figure 2 It is the longitudinal sectional view of the loop-shaped box of the present invention;

[0021] Figure 3 It is the longitudinal sectional view of the outer spraying device of the present invention;

[0022] Figure 4 It is the longitudinal sectional view of the outer spraying device in another state of the present invention;

[0023] Figure 53D view of the loop-shaped box of the present invention;

[0024] Figure 6 For the present invention Figure 5 Partial enlarged view at position A in the present invention;

[0025] Figure 7 For the present invention Figure 1 Partial enlarged view at position B in the present invention.

[0026] Reference numerals in the drawings are as follows: 1, outer longitudinal beam; 2, loop-shaped box; 3, loop-shaped channel; 4, nozzle; 5, control column; 6, annular water outlet channel; 7, horizontal hole; 8, first channel; 9, second channel; 10, arc-shaped hole; 11, blocking block; 12, central spray hole; 13, spray pipe; 14, fixing strip; 15, loop-shaped plate; 16, grooved block; 17, sliding strip; 18, linkage strip; 19, cylinder; 20, curing pipe; 21, box girder; 22, outer formwork; 23, inner formwork; 24, inner longitudinal beam; 25, first water supply tank; 26, second water supply tank; 27, first water inlet pipe; 28, second water inlet pipe; 29, support rod; 30, roller. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] As Figures 1 - 6 shown, the present invention provides a cantilever construction hanging basket spray curing device, including a loop-shaped box 2 sleeved on an outer longitudinal beam 1. The front end of the outer longitudinal beam 1 is flush with the edge of the outer formwork 22, and the rear end of the outer longitudinal beam 1 is flush with the rear end of the box girder 21; Outer spray devices are provided on the side walls of the loop-shaped box 2 facing the outer side wall of the box girder 21 and the lower side wall of the wing plate of the box girder 21; As Figure 2 , 3As shown in the figure, a meandering channel 3 is formed inside the meandering box 2; each external spraying device includes a nozzle 4 and a control column 5 fixedly connected inside the nozzle 4; a central spray hole 12 and an annular water outlet channel 6 located outside the central spray hole 12 are formed inside the nozzle 4; the two vertical side walls of the annular water outlet channel 6 are both arc-shaped transitions for guiding the water flow; a horizontal hole 7 perpendicular to the central spray hole 12 is formed inside the nozzle 4; the left and right ends of the horizontal hole 7 are communicated with the annular water outlet channel 6; a first channel 8 communicated with the central spray hole 12 is formed in the control column 5; one end of the central spray hole 12 close to the meandering box 2 has an enlarged hole section; the first channel 8 and the central spray hole 12 have the same size and are coaxially arranged, and at the same time, the sizes of both are smaller than the enlarged hole section; a connection hole coaxial with the enlarged hole section is formed in the meandering channel 3; the enlarged hole section is communicated with the meandering channel 3 through the connection hole; two second channels 9 are respectively formed on two sides of the control column 5 adjacent to the horizontal hole 7; the outer ends of the two second channels 9 are communicated with the horizontal hole 7; arc-shaped holes 10 are formed in the upper parts of the two second channels 9 close to the first channel 8; the two second channels 9 are respectively communicated with the first channel 8 through the arc-shaped holes 10; receiving grooves are formed on the left and right side walls of the first channel 8; the receiving grooves are located above the arc-shaped holes 10; the side wall of the receiving groove away from the meandering channel 3 is an arc-shaped side wall, and the arc-shaped side wall extends from the center to the outside; a blocking block 11 is rotatably connected to the front and rear side walls of each receiving groove through a control motor; an arc-shaped edge is integrally formed on one side of the two blocking blocks 11 facing each other, and a water stop edge parallel to the opening direction of the central spray hole 12 is integrally formed below the arc-shaped edge; As Figure 4 shown, the blocking blocks 11 are driven to rotate by the control motor so that the ends of the blocking blocks 11 away from the meandering box 2 are in contact with each other. At the same time, the water stop edge is in contact with the side wall of the receiving groove away from the arc-shaped edge; an internal spraying device for the inner cavity wall of the spraying box girder 21 is provided on the inner longitudinal beam 24; a water supply device for supplying water to the external spraying device and the internal spraying device is provided on the external formwork 22 and the internal formwork 23.

[0029] The principle and effect of the above technical solution:

[0030] In the initial state, the blocking blocks 11 are in a state parallel to the first channel 8. The meandering box 2 is supplied with water through the water supply device. The water flow passes through the meandering channel 3, the enlarged hole section, and then passes through the first channel 8 and sprays out from the central spray hole 12 to spray and maintain the positions opposite to the outer side wall of the box girder 21 and the lower side wall of the wing plate of the box girder 21. After spraying for a period of time, the control motor is driven to rotate the two blocking blocks 11 relatively to complete the splicing. The water flow is guided along the arc-shaped edge and flows into the second channel 9 along the arc-shaped hole 10 and sprays out from the annular water outlet channel 6 along the horizontal hole 7, so as to spray and maintain the lower side wall of the wing plate of the box girder 21 and the outer side wall of the box girder 21 around the position directly opposite to the central spray hole 12. At the same time, the internal spraying device can spray and maintain the inner cavity wall of the box girder 21.

[0031] When the water flow flows out from the loop channel 3, since the sizes of the central spray hole 12 and the first channel 8 are both smaller than the enlarged hole section, when the water flow passes through, it can be pressurized to increase the spraying speed of the water flow. Thus, when the water is sprayed onto the outer side wall of the box girder 21 and the lower side wall of the wing plate of the box girder 21, it can maintain a good scouring force, causing the water to splash around from the scouring point, and can increase the maintenance area centered on the scouring point; in the initial state, the blocking block 11 is in a state parallel to the central spray hole 12. When the water flow passes through the receiving groove, a small part of the water flow will flow along the arc-shaped side wall and then flow along the arc-shaped edge of the blocking block 11 in the vertical direction close to the central spray hole 12. Since most of the water flow is flowing out from the loop channel 3 towards the central spray hole 12, the small part of the water flow flowing out from the arc-shaped edge returns to the flowing direction of most of the water flow. The arc-shaped side wall, the arc-shaped edge, and the water flow flowing out from the loop channel 3 towards the central spray hole 12 cooperate with each other to make the small part of the water flow passing through form a cycle, thereby accelerating the spraying speed of the water flow, increasing the impact force of the scouring point, and being able to expand the range of outward splashing centered on the scouring point, thus increasing the maintenance area; as Figure 4 shown, when the driving control motor drives the blocking blocks 11 to be spliced together and contact each other, the water flow from the central spray hole 12 is blocked, and the water flow can flow along the arc-shaped edge to the arc-shaped hole 10, and then spray out along the arc-shaped transition annular water outlet channel 6, and relay with the water sprayed out from the central spray hole 12 to perform spraying maintenance on the outer position. The arc-shaped edge can guide the water flow. Since the water stop edge contacts the side wall of the receiving groove, it seals this place, avoiding the water flow flowing out along this place and reducing the power of the water flow. The side wall of the annular water outlet channel 6 is set to be arc-shaped transition, which can expand the maintenance range. By continuously supplying water through the water supply device, the outer spraying device and the inner spraying device can well solve the problem of poor continuity of manual maintenance.

[0032] Embodiment 2

[0033] Based on Embodiment 1, as Figure 5 、 6As shown in the figure, in this embodiment, a side spraying device for spraying the included angle between the outer sidewall of the box girder 21 and the lower sidewall of the wing plate of the box girder 21 is inclined on the loop-shaped box 2; the side spraying device is directly opposite to the included angle; the side spraying device includes a spray pipe 13 communicated with the loop-shaped channel 3; the spray pipe 13 is trapezoidal, and the trapezoidal spray pipe 13 can pressurize the water in the loop-shaped box 2 to increase the pressure of the sprayed water; a pair of L-shaped fixing strips 14 are symmetrically and fixedly connected to the circumferential sidewall of the spray pipe 13; the fixing strips 14 are parallel to the spray pipe 13; a loop-shaped plate 15 is rotatably connected between the two fixing strips 14 through a rotating shaft; the loop-shaped plate 15 is provided with a square hole; a torsion spring (not shown in the figure) is connected to the rotating shaft; there is a gap between one end of the loop-shaped plate 15 close to the fixing strip 14 and the fixing strip 14; a grooved block 16 is fixedly connected to the lower sidewall of the upper fixing strip 14 close to the loop-shaped plate 15; a sliding strip 17 is slidably connected in the grooved block 16; the sliding direction of the sliding strip 17 is along the length direction of the lower sidewall of the fixing strip 14; one end of the sliding strip 17 close to the loop-shaped plate 15 is rotatably connected with a linkage strip 18; the linkage strip 18 is located in the gap; the linkage strip 18 is rotatably connected to the sidewall of the loop-shaped plate 15 close to the fixing strip 14, and the position where it is rotatably connected is close to the front edge of the fixing strip 14; a row of secondary teeth distributed along the length direction of the sliding strip 17 are provided on the front sidewall of the sliding strip 17 away from the loop-shaped plate 15; a driving motor perpendicular to the sliding strip 17 is provided on the front sidewall of the fixing strip 14; a disc is coaxially connected to the power end of the driving motor; main teeth partially engaged with the secondary teeth are symmetrically provided on the circumferential sidewall of the disc.

[0034] Principle and effect of the above technical solution:

[0035] In the initial state, the relative position between the loop-shaped plate 15 and the spray pipe 13 is in a vertical state; when the water flows out from the spray pipe 13, the water flows through the square hole to spray and maintain the included angle, control the driving motor to rotate counterclockwise, the driving motor drives the engaged secondary teeth through the main teeth partially arranged on the disc, thereby driving the sliding strip 17 to slide along the direction away from the loop-shaped plate 15, and the sliding strip 17 drives the loop-shaped plate 15 to rotate a certain angle around the rotating shaft through the linkage strip 18. When the main teeth are disengaged from the secondary teeth, the loop-shaped plate 15 is driven back to the initial position under the action of the torsion spring. The torsion spring and the driving motor cooperate with each other to make the loop-shaped plate 15 deflect repeatedly, so that the water flow sprayed from the spray holes is in a continuous conversion between normal circulation and interrupted circulation. During this process, when the water flow passes through normally, the sputtering range is limited. Through the cooperation of the torsion spring and the driving motor, the normal circulation state of the water flow is interrupted, and the water flow strikes on the loop-shaped plate 15, which will change the sputtering direction of the water flow, thereby expanding the spray and maintenance area.

[0036] Embodiment 3

[0037] On the basis of Embodiment 1, in this embodiment, as Figure 7As shown in the figure, the inner spraying device includes a cylinder 19 detachably arranged on the inner side wall of the inner longitudinal beam 24; the cylinders 19 are distributed along the length direction of the inner longitudinal beam 24; a rotating motor is coaxially connected to the cylinder 19; a maintenance pipe 20 is vertically connected to the power end of the rotating motor; a plurality of spraying holes communicating with the inside of the maintenance pipe 20 are circumferentially formed in the maintenance pipe 20, such as Figure 1 As shown in the figure, the rear end of the inner longitudinal beam 24 is located inside the inner formwork 23 and does not exceed the rear end of the inner formwork 23.

[0038] The principle and effect of the above technical solution:

[0039] The water supply device supplies water to the maintenance pipe 20, and the water flows out from a plurality of spraying holes to spray and maintain the peripheral side walls of the inner cavity of the box girder. By driving the rotating motor to rotate, the movement trajectory of the water flowing out from the spraying holes can be expanded, thereby expanding the spraying area. At the same time, in cooperation with the cylinder 19, the rotational movement of the maintenance pipe 20 is changed into a spiral forward movement, thereby further increasing the spraying area and improving the maintenance effect.

[0040] Embodiment 4

[0041] On the basis of Embodiment 1, in this embodiment, as Figure 1 shown in the figure, the water supply device includes a first water supply tank 25 installed on the upper surface of the outer formwork 22, a second water supply tank 26 installed on the bottom wall of the inner formwork 23, and pressure pumps (not shown in the figure) respectively located therein; a first water inlet pipe 27 is communicated with the side wall of the return box 2, and a second water inlet pipe 28 is communicated with the side wall of the maintenance pipe 20; both between the first water inlet pipe 27 and the first water supply tank 25 and between the second water inlet pipe 28 and the second water supply tank 26 are communicated through their respective corrugated pipes (not shown in the figure).

[0042] The principle and effect of the above technical solution:

[0043] The pressure pumps send the water in the first water supply tank 25 and the second water supply tank 26 into the return channel 3 and the maintenance pipe 20 respectively, and spray and maintain them by spraying out from the outer spraying device and the inner spraying device respectively.

[0044] In this embodiment, as Figure 2 shown in the figure, a moving device capable of driving the return box 2 to move on the outer longitudinal beam 1 is provided between the return box 2 and the outer longitudinal beam 1; the moving device includes support rods 29 vertically arranged on the four inner side walls of the return box 2; rollers 30 are connected to the support rods 29; the rollers 30 are driven by a moving motor (not shown in the figure); each roller 30 is in contact with the side wall of the outer longitudinal beam 1.

[0045] The principle and effect of the above technical solution:

[0046] Since the front end of the outer longitudinal beam 1 is flush with the edge of the outer formwork 22 and the rear end of the outer longitudinal beam 1 is flush with the rear end of the box girder 21, by driving the roller 30 through the moving motor to drive the loop box 2 to move on the outer longitudinal beam 1, the outer side wall of the entire box girder 21 and the lower side wall of the wing plate of the box girder 21 can be maintained, and the spraying maintenance area can be increased.

[0047] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cantilever construction hanging basket spraying and curing device, characterized in that: It includes a U-shaped box (2) sleeved on the outer longitudinal beam (1); outer spray devices are provided on the side walls of the U-shaped box (2) facing the outer side wall of the box girder (21) and the lower side wall of the wing plate of the box girder (21); a U-shaped channel (3) is formed inside the U-shaped box (2); each outer spray device includes a nozzle (4) and a control column (5) located inside the nozzle (4); a central spray hole (12) and an annular water outlet channel (6) located on the outer circle of the central spray hole (12) are formed inside the nozzle (4); a horizontal hole (7) is horizontally formed inside the nozzle (4); both ends of the horizontal hole (7) are communicated with the annular water outlet channel (6); the central spray hole (12) is communicated with the U-shaped channel (3) through the control column (5); the U-shaped channel (3) is communicated with the horizontal hole (7) through the control column (5); an inner spray device for spraying the inner cavity wall of the box girder (21) is provided on the inner longitudinal beam (24); a water supply device for supplying water to the outer spray device and the inner spray device is provided on the outer formwork (22) and the inner formwork (23).

2. The cantilever construction hanging basket spraying and curing equipment according to claim 1, characterized in that: The control column (5) is provided with a first channel (8) communicated with the central spray hole (12), and two second channels (9) are respectively formed on both sides of the control column (5) adjacent to the horizontal hole (7), and the outer ends of the two second channels (9) are communicated with the horizontal hole (7); arc-shaped holes (10) are formed in the upper parts of the two second channels (9) close to the first channel (8), and the two second channels (9) are respectively communicated with the first channel (8) through the arc-shaped holes (10); receiving grooves are formed on the left and right side walls of the first channel (8), and the receiving grooves are located above the arc-shaped holes (10), and a blocking block (11) is rotatably connected to the front and rear side walls of each receiving groove through a control motor, an arc-shaped edge is integrally formed on the facing surface of the two blocking blocks (11), and a water stop edge parallel to the opening direction of the central spray hole (12) is integrally formed below the arc-shaped edge.

3. The cantilever construction hanging basket spraying and curing equipment according to claim 1, characterized in that: A side spray device for spraying the included angle between the outer side wall of the box girder (21) and the lower side wall of the wing plate of the box girder (21) is obliquely provided on the U-shaped box (2); the side spray device includes a spray pipe (13) communicated with the U-shaped channel (3); a pair of L-shaped fixing strips (14) are symmetrically provided on the side wall of the spray pipe (13); a U-shaped plate (15) is rotatably connected between the two fixing strips (14) through a rotating shaft; a torsion spring is provided on the rotating shaft; there is a gap between one end of the U-shaped plate (15) close to the fixing strip (14) and the fixing strip (14); a grooved block (16) is provided on one side of one fixing strip (14) close to the U-shaped plate (15); a sliding strip (17) is slidably connected inside the grooved block (16); one end of the sliding strip (17) close to the U-shaped plate (15) is rotatably connected with a linkage strip (18); the linkage strip (18) is rotatably connected to one side of the U-shaped plate (15) close to the fixing strip (14); a row of secondary teeth are provided on the side wall of the sliding strip (17) away from the U-shaped plate (15); a driving motor (31) is provided on the fixing strip (14); a disc (32) is coaxially connected to the power end of the driving motor; main teeth partially meshing with the secondary teeth are symmetrically provided on the circumferential side wall of the disc.

4. The cantilever construction hanging basket spraying and curing equipment according to claim 1, characterized in that: The inner spraying device includes a cylinder (19) detachably arranged in the inner longitudinal beam (24); a rotating motor is coaxially connected to the cylinder (19); a maintenance pipe (20) is vertically connected to the power end of the rotating motor; a plurality of spraying holes communicating with the inside of the maintenance pipe (20) are formed in the circumferential direction of the maintenance pipe (20).

5. The cantilever construction hanging basket spray curing equipment according to claim 1, characterized in that: The water supply device includes a first water supply tank (25) arranged on the upper surface of the outer formwork (22) and a second water supply tank (26) arranged on the inner formwork (23); the first water supply tank (25) and the second water supply tank (26) are respectively communicated with the loop-shaped box (2) and the maintenance pipe (20).

6. The cantilever construction hanging basket spraying and curing equipment according to claim 4, characterized in that: A moving device capable of driving the loop-shaped box (2) to move on the outer longitudinal beam (1) is arranged between the loop-shaped box (2) and the outer longitudinal beam (1); the moving device includes support rods (29) arranged on the four inner side walls of the loop-shaped box (2); rollers (30) are connected to the support rods (29); each roller (30) is in contact with the side wall of the outer longitudinal beam (1).

7. A spraying maintenance method for a cantilever construction hanging basket, characterized in that: When using the cantilever construction hanging basket spraying and curing equipment according to any one of claims 2-5, it includes the following steps: In the initial state, the blocking block (11) is in a state parallel to the first channel (8). Water is supplied to the loop-shaped box (2) through the water supply device. The water flow passes through the loop-shaped channel (3), through the enlarged hole section, and then through the first channel (8) and sprays out from the central spray hole (12) to spray and cure the position opposite to the outer side wall of the box girder (21) and the lower side wall of the wing plate of the box girder (21). After spraying for a period of time, the driving control motor is driven to make the two blocking blocks (11) rotate relatively to complete splicing. The water flow flows into the second channel (9) along the arc-shaped hole (10) along the guide of the arc-shaped edge and sprays out from the annular water outlet channel (6) along the horizontal hole (7), so as to spray and cure the lower side wall of the wing plate of the box girder (21) and the outer side wall of the box girder (21) around the position opposite to the central spray hole (12). At the same time, the inner spraying device can spray and cure the inner cavity wall of the box girder (21).

8. The cantilever construction hanging basket spray curing method according to claim 7, characterized in that: It also includes the following steps: In the initial state, the relative position of the loop-shaped plate (15) and the spray pipe (13) is in a vertical state; when the water flow sprays out from the spray pipe (13), the water flow passes through the square hole to spray and cure the included angle. The driving motor is controlled to rotate counterclockwise. The driving motor drives the meshing slave gear teeth through the main gear teeth arranged on the upper part of the disc, so as to drive the sliding bar 17 to slide along the direction away from the loop-shaped plate 15. The sliding bar (17) drives the loop-shaped plate (15) to rotate a certain angle around the rotating shaft through the linkage bar (18). When the main gear teeth are disengaged from the slave gear teeth, the loop-shaped plate (15) is driven to return to the initial position under the action of the torsion spring. The torsion spring and the driving motor cooperate with each other to make the loop-shaped plate (15) deflect repeatedly, so that the water flow sprayed out from the secondary spray holes is in a continuous conversion between normal circulation and interrupted circulation.

Images