Auxiliary construction device for cast-in-place box girder

Abstract

The invention relates to the technical field of building construction, in particular to a cast-in-place box girder auxiliary construction device which comprises a support installed above a foundation trench, a transverse guide rail is arranged on the support, a vertical guide rail is arranged on the transverse guide rail in a sliding mode, and a pouring mechanism is arranged on the vertical guide rail in a sliding mode. And the pouring mechanism comprises a base plate movably installed below the vertical guide rail, a pouring pipe is arranged in the middle of the base plate, vibration stirring units are movably arranged on the periphery of the base plate, and centering units are arranged on the outer sides of the vibration stirring units. The unique combination of the rigid section and the flexible section of the stirring rod realizes dual-mode collaboration, the vibration of the eccentric block promotes the concrete uniformity, the flexible section automatically deforms and expands under the action of centrifugal force, the aggregate distribution uniformity is improved, and the stirring rod adapts to concrete with different slumps through the two-dimensional regulation and control of the push rod and the retainer and the real-time regulation of the oscillation depth. The stirring range is expanded through free deformation during upward movement, and the focusing vibration area is locally rigidized during downward movement.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to an auxiliary construction device for cast-in-situ box beams. Background Art

[0002] With the continuous development of modern bridge engineering technology and the acceleration of urbanization, box girders of reinforced concrete structures have been widely used in construction. Box girders are mainly divided into two types: prefabricated box girders and cast-in-place box girders. Prefabricated box girders are box girder components that are prefabricated in an independent site and erected using hoisting and other equipment.

[0003] Among them, in the box girder structure planned and laid out on the foundation pit, the casting surface of the box girder is relatively wide. Since there are many horizontal and vertical steel bars in the box girder, during the casting process of the box girder, it is generally poured directly on the top of the box girder, allowing the concrete slurry to diffuse and flow on its own. Since the concrete slurry is mixed with stones, gravel, etc., the horizontal and vertical steel bars have a flow-blocking effect on the stones, gravel, etc., which causes uneven distribution of the concrete slurry in the box girder.

[0004] To solve the above problems, Chinese patent: CN118516925B discloses an auxiliary construction device and construction method for non-prestressed cast-in-situ box beams, which relates to the technical field of cast box beams, including a stand arranged outside the foundation pit, a guide rail 1 installed on the stand, a guide rail 2 perpendicular to the guide rail 1 installed on the guide rail 1, and a casting device installed on the guide rail 2. The casting device includes a movable hanger installed on the guide rail 2, a telescopic rod 1 installed at the lower end of the movable hanger, a hanging plate installed at the lower end of the telescopic rod, a slurry guide pipe installed on the hanging plate, a hanging plate rotatably installed at the lower end of the slurry guide pipe, and a plurality of mixing assemblies installed on the outer periphery of the hanging plate. The mixing assembly includes an elastic telescopic member connected to the hanging plate, a mixing rod and a rotating drive mechanism for controlling the mixing rod are installed on the elastic telescopic member; through the design of the flexible mixing rod and the drainage screw blade, the gravel and large-size stones in the concrete slurry can be evenly distributed in various areas of the steel frame box beam.

[0005] However, the above-mentioned prior art forms a pneumatic structure through an air duct and multiple chambers. These precision structures are prone to malfunction in construction sites with a lot of dust. In addition, the lower through cavity inside the flexible mixing rod is connected to the outside world, so concrete is easily retained after pouring. If it is not cleaned in time, the residual concrete will solidify and cause the plunger rod 2 to lock with the drainage screw blade, making it unusable. Therefore, regular and frequent cleaning is required.

[0006] To this end, we propose an auxiliary construction device for cast-in-situ box beams. Summary of the Invention

[0007] In order to solve the above technical problems, an embodiment of the present application provides an auxiliary construction device for cast-in-place box girders, including a bracket installed above a foundation pit, a transverse guide rail is provided on the bracket, a vertical guide rail is slidably provided on the transverse guide rail, a casting mechanism is slidably provided on the vertical guide rail, and the casting mechanism includes a base plate movably installed below the vertical guide rail, a casting pipe is provided in the middle of the base plate, an oscillation stirring unit is movably provided around the base plate, and a centering unit is provided on the outside of the oscillation stirring unit.

[0008] In some embodiments, a moving block is slidably provided in the vertical guide rail, a casting push rod is fixedly connected to the bottom of the moving block, and the bottom end of the casting push rod is fixedly connected to the base plate.

[0009] In some embodiments, the substrate is provided with sliding grooves all around, and sliders are slidably arranged in the sliding grooves. Connecting springs are fixedly connected on both sides of the sliders, and the other end of the connecting spring is connected to the side wall of the sliding groove. A fixed sleeve is fixedly connected to the slider, and a moving rod is slidably arranged in the fixed sleeve. The bottom end of the moving rod is connected to a support spring, and the other end of the support spring is connected to the fixed sleeve. A U-shaped plate is provided at the end of the moving rod, the oscillation stirring unit is provided on the U-shaped plate, and an electromagnetic locking unit is provided in the slider.

[0010] In some embodiments, a cavity is provided in the slider, and the electromagnetic locking unit includes an electromagnet arranged on the side wall of the cavity. A pressure block is movably provided in the cavity, and a return spring is fixedly connected to the pressure block, and the other end of the return spring is connected to the side wall of the cavity. A magnetic block is provided on the pressure block, and when the electromagnet is energized, the magnetic block is repelled to drive the pressure block to move; Wedge blocks are slidably provided on both sides of the cavity, and both sides of the pressure block abut against the inclined surfaces of the wedge blocks. A tension spring is provided between the two wedge blocks, and the two ends of the tension spring are respectively connected to the two wedge blocks. A locking block is fixedly provided on the side wall of the wedge block close to the base plate, and the locking block slides through the slider. A push rod is fixedly connected to the other wedge block, and an arc plate is slidably provided in the fixed sleeve, and an inclined surface is provided on the back side of the arc plate, and the end of the push rod abuts against the inclined surface of the arc plate.

[0011] In some embodiments, the oscillation stirring unit includes a stirring rod arranged on a U-shaped plate, an oscillation component is arranged inside the stirring rod, a driving gear is arranged inside the U-shaped plate, a transmission gear meshing with the driving gear is arranged on the outside of the stirring rod, and a motor is arranged on the U-shaped plate, and the output end of the motor is connected to the driving gear.

[0012] In some embodiments, the stirring rod includes an upper rigid section and a lower flexible section.

[0013] In some embodiments, an installation cavity is opened in the stirring rod, and a push rod is arranged in the installation cavity. The oscillation component includes a motor arranged at the output end of the push rod, and the output end of the motor is connected to an oscillation shaft. An eccentric block is fixedly arranged on the outside of the oscillation shaft, and retaining frames are arranged on the outside of the upper and lower ends of the oscillation shaft, and the outer side of the retaining frame abuts against the inner wall of the installation cavity.

[0014] In some embodiments, the centering unit includes a centering push rod arranged on a U-shaped plate, a cone sleeve is provided at the output end of the centering push rod, a plurality of slots are opened on the outside of the cone sleeve, a centering airbag is provided in the slot, and the plurality of centering airbags are all connected to the air pump.

[0015] In some embodiments, an adjusting push rod is provided at the top of the stirring rod, the output end of the adjusting push rod is rotatably connected to the top of the stirring rod, a connecting frame is provided between the multiple adjusting push rods, and a limiting block is provided on the outside of the adjusting push rod arranged in the length direction of the vertical guide rail, and avoidance grooves are opened on both sides of the limiting block.

[0016] In some embodiments, a shock-isolating pad is provided at the output end of the push rod.

[0017] The present invention has at least the following beneficial effects: The horizontal guide rail and the vertical guide rail are linked by screws to achieve the positioning of the pouring pipe, covering the entire area of ​​the foundation trench without dead angles, improving the uniformity of concrete paving, and eliminating the blind spot problem of manual paving; The unique combination of the rigid section and the flexible section of the mixing rod achieves dual-mode synergy. The eccentric block vibrates to promote uniform concrete distribution, while the flexible section automatically deforms and expands under centrifugal force, improving the uniformity of aggregate distribution and solving the problem of stone accumulation. Through the two-dimensional control of the push rod and the retaining frame, the vibration depth is adjusted in real time to adapt to concrete with different slumps. When moving upward, it deforms freely to expand the mixing range, and when moving downward, it is locally rigid and focuses the vibration area. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic structural diagram of the pouring mechanism of the present invention; Figure 3 It is a schematic diagram of the local structure of the pouring mechanism of the present invention; Figure 4 For the present invention Figure 3 Schematic diagram of local structure; Figure 5 This is a schematic structural diagram of the substrate of the present invention; Figure 6 Schematic diagram of the cross-sectional structure of the substrate of the present invention; Figure 7 This is a schematic cross-sectional view of the substrate and slider of the present invention; Figure 8 This is a schematic cross-sectional view of the slider and the fixing sleeve of the present invention; Figure 9 For the present invention Figure 8 A in the middle is an enlarged structural diagram; Figure 10 For the present invention Figure 8 The enlarged structural diagram at B in the middle; Figure 11 This is a structural diagram of the driving gear of the present invention; Figure 12 This is a schematic diagram of the cross-sectional structure of the cone sleeve of the present invention; Figure 13 Schematic diagram of the internal structure of the stirring rod of the present invention; Figure 14 It is a schematic diagram of the structure of the oscillation component of the present invention.

[0019] In the figure: 1- horizontal guide rail; 2- vertical guide rail; 3- casting mechanism; 4- base plate; 5- casting pipe; 6- oscillating stirring unit; 61- stirring rod; 611- rigid section; 612- flexible section; 62- driving gear; 63- transmission gear; 7- centering unit; 71- centering push rod; 72- taper sleeve; 73- centering airbag; 8- electromagnetic locking unit; 81- electromagnet; 82- pressure block; 83- return spring; 84- magnetic block; 85- Wedge block; 86-tension spring; 87-locking block; 88-thrust rod; 89-arc plate; 9-oscillation assembly; 91-oscillation shaft; 92-eccentric block; 93-retaining frame; 10-moving block; 11-casting push rod; 12-chute; 13-slider; 14-connecting spring; 15-fixing sleeve; 16-moving rod; 17-support spring; 18-U-shaped plate; 19-thrust rod; 20-adjusting push rod; 21-connecting frame; 22-limiting block. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example 1: Please refer to Figure 1-Figure 5The present invention provides a technical solution: an auxiliary construction device for cast-in-situ box beams, comprising a bracket installed above a foundation trench, a transverse guide rail 1 being provided on the bracket, the transverse guide rail 1 being fixedly connected to the bracket, a vertical guide rail 2 being slidably provided on the transverse guide rail 1, a casting mechanism 3 being slidably provided on the vertical guide rail 2, and in actual use, a screw rod moving mechanism can be provided in the transverse guide rail 1 and the vertical guide rail 2, which can convert the rotation of the screw rod into a linear movement, thereby driving the vertical guide rail 2 to move on the transverse guide rail 1, and the casting mechanism 3 to slide on the vertical guide rail 2, thereby enabling the casting mechanism 3 to cover the entire foundation trench; The pouring mechanism 3 includes a base plate 4 movably installed under the vertical guide rail 2, and a pouring pipe 5 is provided in the middle of the base plate 4. The pouring pipe 5 is connected to the external concrete conveying device for conveying concrete. The base plate 4 drives the pouring pipe 5 to move, and through the transverse guide rail 1 and the longitudinal guide rail, the pouring pipe 5 can cover the entire construction surface. Through this mobile pouring method, the concrete mortar can be poured more evenly in the foundation groove, reducing the paving workload. The base plate 4 is movably provided with an oscillating mixing unit 6 around. When the concrete is conveyed to the construction surface, the oscillating mixing unit 6 is sent into the concrete, and then the concrete can be evenly distributed by oscillation and stirring, and the bubbles inside the concrete can be discharged and the uniform distribution of the internal stones can be promoted. The oscillating mixing unit 6 is set to be movable, and its oscillation and mixing height can be adjusted according to actual needs, so that the concrete is more uniform and has higher strength after solidification. A centering unit 7 is provided on the outside of the oscillating mixing unit 6, and the centering unit 7 can ensure that the oscillating mixing unit 6 is in a The centering unit 7 is located at the center of the rectangle formed by the horizontal and vertical steel bars, thereby preventing the force generated by the oscillating mixing unit 6 during operation from affecting the steel skeleton. When the oscillating mixing unit 6 is sent to the height of the horizontal and vertical steel bars, its bottom end may abut the steel bars or not. When it abuts the steel bars, the bottom of the oscillating mixing unit 6 is set to a flexible structure, which can enable it to avoid the steel bars. Then the centering unit 7 is unfolded to make the oscillating mixing unit 6 passively move to the center position of the horizontal and vertical steel bars. If it does not abut the steel bars, the centering unit 7 is directly unfolded to drive the oscillating mixing unit 6 to the center position of the horizontal and vertical steel bars. A moving block 10 is slidingly provided in the vertical guide rail 2. The moving block 10 is connected to the screw transmission system provided in the vertical guide rail 2, and can be moved in the vertical guide rail 2. The screw transmission system is a prior art and will not be repeated here. A casting push rod 11 is fixedly connected to the bottom of the moving block 10. The bottom end of the casting push rod 11 is fixedly connected to the base plate 4. When the casting push rod 11 is extended, it can drive the base plate 4 to move downward, and the base plate 4 drives the oscillating mixing unit 6 to move downward. Example 2: Please refer to Figure 6-Figure 7The present invention provides a technical solution: an auxiliary construction device for cast-in-situ box beams, wherein a slide groove 12 is opened on all sides of the base plate 4, and a slider 13 is slidably arranged in the slide groove 12, and a connecting spring 14 is fixedly connected to both sides of the slider 13. The connecting springs 14 on both sides make the initial position of the slider 13 in the middle of the slide groove 12, and the other end of the connecting spring 14 is connected to the side wall of the slide groove 12, and a fixing sleeve 15 is fixedly connected to the slider 13, and a moving rod 16 is slidably arranged in the fixing sleeve 15, and the bottom end of the moving rod 16 is connected to a supporting spring 17, and the other end of the supporting spring 17 is connected to the fixing sleeve 15, and a U-shaped plate 18 is provided at the end of the moving rod 16, and the oscillation stirring unit 6 is arranged on the U-shaped plate 18, and an electromagnetic locking unit 8 is provided in the slider 13; Through the springs on both sides of the slider 13 and the sliding cooperation between the fixed sleeve 15 and the moving rod 16, the slider 13 can move in the slide groove 12, thereby driving the fixed sleeve 15 to move, and the fixed sleeve 15 drives the moving rod 16 and the U-shaped plate 18 at the end of the moving rod 16 to move, and finally drives the oscillation stirring unit 6 to move, thereby realizing automatic avoidance when the bottom of the oscillation stirring unit 6 abuts against the steel bar. No matter whether the bottom of the oscillation stirring unit 6 touches the horizontally arranged steel bar or the vertically arranged steel bar, the cooperation between the slider 13 and the slide groove 12 and the cooperation between the moving rod 16 and the fixed sleeve 15 can achieve the effect of driving the oscillation stirring unit 6 to avoid, and then the position of the oscillation stirring unit 6 can be adjusted through the centering unit 7. Example 3: Please refer to Figures 8-10 The present invention provides a technical solution: an auxiliary construction device for cast-in-situ box beams, wherein a cavity is provided in a slider 13, an electromagnetic locking unit 8 comprises an electromagnet 81 arranged on the side wall of the cavity, a pressure block 82 is movably provided in the cavity, and a return spring 83 is fixedly connected to the pressure block 82. When the pressure block 82 moves, it can drive the return spring 83 to stretch, thereby generating a return force of the return spring 83, which has a tendency to drive the pressure block 82 to return to its original position. The other end of the return spring 83 is connected to the side wall of the cavity, and a magnetic block 84 is provided on the pressure block 82. When the electromagnet 81 is energized, the magnetic block 84 repels the magnetic block 84 to drive the pressure block 82 to move. When the electromagnet 81 is de-energized, the pressure block 82 is returned to its original position under the action of the return spring 83. Wedge blocks 85 are slidably provided on both sides of the cavity, and the two sides of the pressure block 82 abut the inclined surfaces of the wedge blocks 85, so that when the pressure block 82 moves, the pressure block 82 can squeeze the two wedge blocks 85 and drive the two wedge blocks 85 away from each other. A tension spring 86 is provided between the two wedge blocks 85, and the two ends of the tension spring 86 are respectively connected to the two wedge blocks 85, so that when the pressure block 82 no longer abuts the wedge blocks 85, the wedge blocks 85 can be reset to close to each other, and a locking block 87 is fixedly provided on the side wall of the wedge block 85 close to the substrate 4. The locking block 87 slides through the slider 13, and then when the wedge block 85 moves, it can drive the locking block 87 to move, and the side of the locking block 87 abuts the slide groove. 12 side walls, to achieve locking of the slider 13. In order to increase the locking effect, the side of the locking block 87 can be roughened. A push rod 88 is fixedly connected to the other wedge block 85. An arc plate 89 is slidably provided in the fixed sleeve 15. The back side of the arc plate 89 is provided with an inclined surface, and the end of the push rod 88 abuts the inclined surface of the arc plate 89. When the wedge block 85 moves, it drives the push rod 88 to move, and the end of the push rod 88 abuts the inclined surface on the arc plate 89, thereby driving the arc plate 89 to move so that the inner side of the arc plate 89 abuts the moving rod 16. The position of the moving rod 16 is locked through the contact between the arc plate 89 and the moving rod 16. Similarly, in order to enhance the locking effect, the inner side of the arc plate 89 can be roughened. Example 4: Please refer to Figure 11-13 The present invention provides a technical solution: an auxiliary construction device for cast-in-place box beams, an oscillation mixing unit 6 includes a stirring rod 61 arranged on a U-shaped plate 18, an oscillation component 9 is arranged in the stirring rod 61, a driving gear 62 is arranged in the U-shaped plate 18, a transmission gear 63 meshing with the driving gear 62 is arranged on the outer side of the stirring rod 61, a motor is arranged on the U-shaped plate 18, and the output end of the motor is connected to the driving gear 62. The motor drives the driving gear 62 to rotate, and then the driving gear 62 drives the transmission gear 63 to rotate, and the transmission gear 63 drives the stirring rod 61 to rotate.

[0022] The stirring rod 61 includes a rigid section 611 at the top and a flexible section 612 at the bottom. The rigid section 611 at the top can cooperate with the driving gear 62 to realize power transmission. When the stirring rod 61 rotates, the flexible section 612 at the bottom will deform under the action of centrifugal force, thereby increasing the stirring range of the stirring rod 61 and assisting the flow and spreading of concrete.

[0023] An installation cavity is provided in the stirring rod 61, and a push rod 19 is provided in the installation cavity. The oscillation component 9 includes a motor provided at the output end of the push rod 19, and the output end of the motor is connected to an oscillation shaft 91. An eccentric block 92 is fixedly provided on the outside of the oscillation shaft 91. A retaining frame 93 is provided on the outside of the upper and lower ends of the oscillation shaft 91. The outer side of the retaining frame 93 abuts against the inner wall of the installation cavity. The motor drives the oscillation shaft 91 to rotate, thereby driving the eccentric block 92 to rotate. The rotation of the eccentric block 92 generates an oscillation effect, and the push rod 19 can drive the oscillation shaft 91 and the eccentric block 92 to move, thereby being able to adjust The eccentric block 92 is located in the position of the stirring rod 61, so that the oscillation position can be adjusted, and when the position of the eccentric block 92 moves, the retaining frame 93 will also move. When the retaining frame 93 moves in the stirring rod 61, when it moves to the flexible section 612 of the stirring rod 61, the position of the flexible section 612 cannot be deformed, and the state of the flexible section 612 below the stirring rod 61 can be changed, that is, when the retaining frame 93 moves to the flexible section 612, the flexible section 612 part cannot be deformed. In this way, the stirring state of the bottom of the stirring rod 61 when it rotates can be adjusted. Example 5: Please refer to Figure 11-14 The present invention provides a technical solution: a cast-in-situ box girder auxiliary construction device, the centering unit 7 includes a centering push rod 71 arranged on the U-shaped plate 18, and a cone sleeve 72 is provided at the output end of the centering push rod 71. A plurality of notches are opened on the outer side of the cone sleeve 72, and a centering air bag 73 is provided in the notch. The plurality of centering air bags 73 are connected to an air pump, wherein the air pump is a prior art and is not drawn in the figure. When the flexible stirring rod 61 moves to the steel bar, the air pump can inflate the air bag, thereby expanding the air bag, and the internal pressure of each air bag is the same, so under the action of the pressure, the stirring rod 61 is forced to move. Moving to the middle position of the steel bar is specifically achieved through the cooperation between the slider 13 and the slide 12 and the moving rod 16 and the fixed sleeve 15. Since the cone sleeve 72 is sleeved on the outside of the stirring rod 61, when the operation is completed, the cone sleeve 72 can also move up and down to clean the outside of the stirring rod 61 to prevent concrete residue. When the stirring rod 61 moves to the position that needs to be adjusted, the position of the slider 13 and the moving rod 16 can be locked by the electromagnetic locking unit 8, and then the stirring rod 61 can rise or fall to operate. Its operation mode can be divided into two modes: oscillation and stirring.

[0024] An adjusting push rod 20 is provided at the top of the stirring rod 61, and the output end of the adjusting push rod 20 is rotatably connected to the top of the stirring rod 61. A connecting frame 21 is provided between multiple adjusting push rods 20, and a limit block 22 is provided on the outside of the adjusting push rod 20 arranged in the length direction of the vertical guide rail 2. Avoidance grooves are provided on both sides of the limit block 22. The limit block 22 slides and is stuck on the outside of the vertical guide rail 2 so that the height of the adjusting push rod 20 will not change. The adjusting push rod 20 can drive the stirring rod 61 to move up and down, and then the operating position of the stirring rod 61 can be adjusted, which is convenient for adjustment according to actual needs.

[0025] An isolation pad is provided at the output end of the push rod 19. Through the provision of the isolation pad, the vibration force of the stirring rod 61 will not be transmitted to the push rod 19 during the vibration operation, thereby ensuring the stability of the push rod 19 in use.

[0026] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0027] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A cast-in-situ box girder auxiliary construction device, comprising a bracket mounted above a foundation trench, a transverse guide rail (1) being provided on the bracket, a vertical guide rail (2) being slidably provided on the transverse guide rail (1), and a casting mechanism (3) being slidably provided on the vertical guide rail (2), characterized in that: The pouring mechanism (3) comprises a base plate (4) movably mounted below the vertical guide rail (2), a pouring pipe (5) being provided in the middle of the base plate (4), oscillating stirring units (6) being movably provided around the base plate (4), and a centering unit (7) being provided outside the oscillating stirring unit (6).

2. The cast-in-situ box girder auxiliary construction device according to claim 1, characterized in that: A moving block (10) is slidably provided in the vertical guide rail (2), a casting push rod (11) is fixedly connected to the bottom of the moving block (10), and the bottom end of the casting push rod (11) is fixedly connected to the base plate (4).

3. The cast-in-situ box girder auxiliary construction device according to claim 1, characterized in that: The base plate (4) is provided with a slide groove (12) on all four sides, and a slider (13) is slidably arranged in the slide groove (12), and a connecting spring (14) is fixedly connected to both sides of the slider (13), and the other end of the connecting spring (14) is connected to the side wall of the slide groove (12). A fixed sleeve (15) is fixedly connected to the slider (13), and a moving rod (16) is slidably arranged in the fixed sleeve (15), and the bottom end of the moving rod (16) is connected to a support spring (17), and the other end of the support spring (17) is connected to the fixed sleeve (15). A U-shaped plate (18) is provided at the end of the moving rod (16), and the oscillation stirring unit (6) is arranged on the U-shaped plate (18). An electromagnetic locking unit (8) is provided in the slider (13).

4. The cast-in-situ box girder auxiliary construction device according to claim 3, characterized in that: A cavity is provided in the slider (13), and the electromagnetic locking unit (8) includes an electromagnet (81) provided on the side wall of the cavity, a pressure block (82) is movably provided in the cavity, a return spring (83) is fixedly connected to the pressure block (82), and the other end of the return spring (83) is connected to the side wall of the cavity, and a magnetic block (84) is provided on the pressure block (82), and when the electromagnet (81) is energized, the magnetic block (84) is repelled to drive the pressure block (82) to move; Wedge blocks (85) are slidably provided on both sides of the cavity, and the two sides of the pressure block (82) abut against the inclined surfaces of the wedge blocks (85). A tension spring (86) is provided between the two wedge blocks (85), and the two ends of the tension spring (86) are respectively connected to the two wedge blocks (85). A locking block (87) is fixedly provided on the side wall of the wedge block (85) close to the substrate (4), and the locking block (87) slides through the slider (13). A push rod (88) is fixedly connected to the other wedge block (85), and an arc plate (89) is slidably provided in the fixed sleeve (15). The back side of the arc plate (89) is provided with an inclined surface, and the end of the push rod (88) abuts against the inclined surface of the arc plate (89).

5. The cast-in-situ box girder auxiliary construction device according to claim 3, characterized in that: The oscillating stirring unit (6) comprises a stirring rod (61) arranged on a U-shaped plate (18), an oscillating assembly (9) is arranged in the stirring rod (61), a driving gear (62) is arranged in the U-shaped plate (18), a transmission gear (63) meshing with the driving gear (62) is arranged on the outside of the stirring rod (61), and a motor is arranged on the U-shaped plate (18), and an output end of the motor is connected to the driving gear (62).

6. The cast-in-situ box girder auxiliary construction device according to claim 5, characterized in that: The stirring rod (61) comprises an upper rigid section (611) and a lower flexible section (612).

7. The cast-in-situ box girder auxiliary construction device according to claim 5, characterized in that: An installation cavity is provided in the stirring rod (61), and a push rod (19) is provided in the installation cavity. The oscillation component (9) includes a motor provided at the output end of the push rod (19), and the output end of the motor is connected to an oscillation shaft (91). An eccentric block (92) is fixedly provided on the outside of the oscillation shaft (91). A retaining frame (93) is provided on the outside of both upper and lower ends of the oscillation shaft (91), and the outside of the retaining frame (93) abuts against the inner wall of the installation cavity.

8. The cast-in-situ box beam auxiliary construction device according to claim 3, characterized in that: The centering unit (7) comprises a centering push rod (71) arranged on a U-shaped plate (18); a cone sleeve (72) is provided at the output end of the centering push rod (71); a plurality of notches are provided on the outside of the cone sleeve (72); centering air bags (73) are provided in the notches; and the plurality of centering air bags (73) are all connected to an air pump.

9. The cast-in-situ box beam auxiliary construction device according to claim 5, characterized in that: An adjusting push rod (20) is provided at the top end of the stirring rod (61), and an output end of the adjusting push rod (20) is rotatably connected to the top end of the stirring rod (61). A connecting frame (21) is provided between the plurality of adjusting push rods (20). A limiting block (22) is provided on the outside of the adjusting push rod (20) provided in the length direction of the vertical guide rail (2), and avoidance grooves are provided on both sides of the limiting block (22).

10. The cast-in-situ box beam auxiliary construction device according to claim 7, characterized in that: An isolation pad is provided at the output end of the push rod (19).

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