Prefabricated box girder self-propelled hydraulic formwork and method

Abstract

The invention discloses a self-propelled hydraulic formwork and method for a prefabricated box girder, relates to the technical field of self-propelled hydraulic formworks for prefabricated box girders, and solves the problem that automatic assembly and automatic disassembly cannot be achieved. The prefabricated box girder self-propelled hydraulic formwork comprises a bottom plate base, clamping grooves are formed in the two sides of the bottom end of the bottom plate base, side inclined formworks are clamped to the two sides of the bottom plate base, side straight formworks are movably arranged on the front sides and the rear sides of the side inclined formworks, and main supporting structures are fixedly arranged at the bottom ends of the two sides of the side inclined formworks; a plurality of water tanks are arranged at the upper end of the main supporting structure, and circulating water vacuum pumps are fixedly arranged at the upper ends of the water tanks. The movable plug is pressed through the water pressure of water filling, the movable column drives the swing rod at the lower end to tilt upwards, one end of the swing rod is clamped in the clamping groove, the hydraulic clamping mechanism replaces an existing bolt and stud connection mode, and clamping can be automatically carried out through the arrangement.

Description

Technical Field

[0001] The present invention relates to the field of self - propelled hydraulic formworks for precast box girders, and specifically to a self - propelled hydraulic formwork and method for precast box girders. Background Technique

[0002] The self - propelled hydraulic formwork for precast box girders is an efficient construction method. Through the hydraulic system, the movement and positioning of the formwork are controlled to achieve the forming and adjustment of the precast box girder. The walking trolley is used to longitudinally move the transfer bench bottom form, and the overall closing and withdrawing of the outer form are realized by relying on the telescopic stroke of the horizontal oil cylinder. By adjusting the stroke of the jacking oil cylinder, the purpose of the outer form closing and positioning and sinking for demolding is achieved. The inner form is gradually pulled out of the mold by adjusting the length of the wire rope recovered by the winch until the inner form is completely removed.

[0003] In the existing hydraulic formwork, the bottom plate seat and the side inclined form are fixedly connected by screws and nuts. This form of traditional connecting parts results in the need for long - term manual disassembly and assembly between the bottom plate seat and the side inclined form. This manual disassembly and assembly method leads to a long assembly time for the bottom plate seat and the side inclined form, thereby delaying the time for precasting box girders. Therefore, it does not meet the existing requirements. For this reason, we propose a self - propelled hydraulic formwork and method for precast box girders. Summary of the Invention

[0004] The purpose of the present invention is to provide a self - propelled hydraulic formwork and method for precast box girders to solve the problems raised in the above - mentioned background technique.

[0005] To achieve the above - mentioned purpose, the present invention provides the following technical solution: A self - propelled hydraulic formwork for precast box girders includes a bottom plate seat. On both sides of the bottom end of the bottom plate seat, card slots are provided. On both sides of the bottom plate seat, side inclined forms are clamped. On the front and back sides of the side inclined forms, side straight forms are movably provided. At the bottom ends of both sides of the side inclined forms, a general support structure is fixedly provided. At the upper end of the general support structure, a plurality of water tanks are arranged in a row. At the upper end of the water tank, a circulating water vacuum pump is fixedly provided. At the upper end of the circulating water vacuum pump, a hose is connected. One end of the hose is connected to a hydraulic clamping mechanism. On one side of the hydraulic clamping mechanism, an opening - closing mechanism is fixedly provided. At the upper end of the opening - closing mechanism, a water outlet pipe is fixedly provided. One end of the water outlet pipe is fixedly connected to a spray head.

[0006] Preferably, the general support structure includes a plurality of slide rails uniformly arranged and fixed at one side end of the bottom plate seat. At the upper end of the slide rail, a hydraulic column is fixedly connected through a support frame. Between every two slide rails, a bottom block is fixedly connected. On one side of the bottom block, an inclined surface is provided. At the upper end of the bottom block, a connecting frame is fixedly connected.

[0007] Preferably, the hydraulic clamping mechanism includes a cylindrical outer shell fixedly connected to the side end of the bottom plate seat. A fixed ring is fixedly connected to the bottom end inside the cylindrical outer shell. Springs are connected to the periphery of the upper end of the fixed ring. The upper ends of the springs are connected to a movable plug. A movable column is fixedly connected to the middle of the lower end of the movable plug. A movable block is fixedly connected to the lower end of the movable column.

[0008] One side of the movable column is connected to a swing rod through a rotating shaft. The middle of the swing rod is connected to a connecting block through a rotating shaft. One end of the connecting block is fixedly connected to the side end face of the bottom plate seat.

[0009] Preferably, the lower end of the movable block is in pressing fit with the inclined surface on one side of the bottom block.

[0010] Preferably, one end of the swing rod is clamped in the card slot at the bottom end of the bottom plate seat.

[0011] Preferably, the opening and closing mechanism includes a connecting cylinder fixedly connected to one side end of the cylindrical outer shell. A connecting rod is movably penetrated through the middle of the connecting cylinder. One end of the connecting rod is fixedly connected to a movable plate. A spring is connected between one end face of the movable plate and one side face of the cylindrical outer shell. A push rod is fixedly connected to the middle of one end face of the movable plate. The other end of the connecting rod is fixedly connected to a sliding plug.

[0012] Preferably, a water flow hole is penetrated through one side of the upper side of the cylindrical outer shell inside the connecting cylinder. The sliding plug is installed in the water flow hole.

[0013] Preferably, the output end on one side of the hydraulic cylinder is fixedly connected to the side end face of the side inclined template. A plurality of sliders are fixedly arranged at the lower end of the side inclined template. The plurality of sliders respectively slide on the upper ends of the slide rails.

[0014] Preferably, a plurality of slide rails are provided at the lower end of the side straight template. The upper ends of the slide rails are fixedly connected to a hydraulic cylinder through a support frame. The output end on one side of the hydraulic cylinder is fixedly connected to the side straight template.

[0015] A method for a self-propelled hydraulic formwork of a precast box girder, the method comprising the following steps:

[0016] Step A: First, the output end on one side of the hydraulic cylinder moves horizontally, so that the side inclined templates at both ends of the bottom plate seat approach horizontally on both sides of the bottom plate seat. The output end of the hydraulic cylinder on one side of the side straight template pushes the side straight template to approach and join the front end of the side inclined template and the bottom plate seat. The output end of the hydraulic cylinder at the rear end pushes the rear side straight template to approach and join the rear end of the side inclined template and the bottom plate seat.

[0017] Step B: At this time, the states of the overall opening and closing mechanism and the hydraulic clamping mechanism are from Figure 5As shown, at this time, the circulating water vacuum pump at the upper end of the water tank is turned on, so that the circulating water vacuum pump fills the inside of the cylindrical shell with water through a hose. Then, the water pressure of the filling water presses the movable plug, and the movable column drives the swing rod at the lower end to tilt upward. Eventually, one end of the swing rod is more tightly clamped in the card slot. Then, the circulating water vacuum pump is turned off. At this time, the cement is poured between the bottom plate seat, the side inclined formwork, and the side straight formwork, and wait for the cement to form into a box girder structure;

[0018] Step C: When it is necessary to separate the overall bottom plate seat and the side inclined formwork, the circulating water vacuum pump needs to be started again. The circulating water vacuum pump operates in reverse to draw the water inside the cylindrical shell back to the water tank through the hose. At this time, the water pressure inside the cylindrical shell becomes smaller, and the stretching elastic force of the spring continuously lifts the upper movable plug. Then, the circulating water vacuum pump is turned off;

[0019] Step D: After the movable plug moves upward, the movable plug drives the movable column and the movable block at the lower end to move upward. As a result, the movable column drives the swing rod at the lower end to tilt upward to one side. Then, one end of the swing rod disengages from the card slot. This setting releases the clamping between the bottom plate seat and the swing rod. At this time, the states of the opening and closing mechanism and the hydraulic clamping mechanism structures are as shown in Figure 6 shown;

[0020] Step E: Then, the bottom block is turned on, and the output end at one end of the bottom block drives the side inclined formwork on one side to move horizontally. Then, the overall side inclined formwork, the opening and closing mechanism, and the hydraulic clamping mechanism move closer to the water tank. Since there is an inclined surface on one side of the bottom block, and this inclined surface is in active contact with the movable block, the continuously upward movement of the movable block pushes the overall movable column and the movable plug upward. At this time, the states of the opening and closing mechanism 5 and the hydraulic clamping mechanism 6 structures are as shown in Figure 7 shown;

[0021] Step F: After the movable plug moves upward, one side of the movable plug squeezes the push rod. The horizontal movement of the push rod drives the connecting rod at one end and the sliding plug on the upper side to move horizontally. Eventually, the sliding plug disengages from the water flow hole. At this time, the circulating water vacuum pump is turned on again, so that the circulating water vacuum pump pumps the water inside the water tank into the cylindrical shell through the hose;

[0022] Step G: At this time, the water inside the cylindrical shell enters the connecting cylinder through the water flow hole, and the water inside the connecting cylinder sprays out through the water outlet pipe and the nozzle. This setting enables the liquid sprayed by the nozzle to water and maintain the overall formed box girder structure.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. Through the overall setting of the present invention, the circulating water vacuum pump fills the inside of the cylindrical housing with water through a hose. The water pressure during filling presses the movable plug, and the movable column drives the swing rod at the lower end to tilt upward, causing one end of the swing rod to be clamped in the clamping groove. The overall hydraulic clamping mechanism realizes the automatic clamping of the bottom plate seat and the side inclined formwork by controlling the water pressure. The hydraulic clamping mechanism replaces the existing connection form of bolts and studs, making the clamping more convenient, and this setting enables the clamping to operate automatically;

[0025] 2. After the movable plug moves upward in the present invention, one side of the movable plug squeezes the push rod. The lateral movement of the push rod drives the lateral movement of the connecting rod at one end and the upper sliding plug, and finally the sliding plug disengages from the water flow hole;

[0026] 3. By turning on the circulating water vacuum pump again in the present invention, the circulating water vacuum pump pumps the water in the water tank into the cylindrical housing through the hose. The water enters the connecting cylinder through the water flow hole, and the water in the connecting cylinder sprays out through the water outlet pipe and the nozzle. In the above setting, not only the clamping between [objects not specified] is released, but also the direction of the water flow is from the nozzle, and then the integrally formed box girder structure is watered and maintained. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is the three-dimensional structure schematic diagram of the whole of the present invention;

[0028] Figure 2 is the sectional three-dimensional view of the opening and closing mechanism and the hydraulic clamping mechanism in the present invention;

[0029] Figure 3 is the present invention Figure 2 the three-dimensional enlarged view of part A in;

[0030] Figure 4 is the present invention Figure 3 the three-dimensional enlarged view of part B in;

[0031] Figure 5 is the front sectional view of the opening and closing mechanism and the hydraulic clamping mechanism of the present invention;

[0032] Figure 6 is the front sectional view of the present invention after one end of the hydraulic clamping mechanism finishes clamping;

[0033] Figure 7 is the front sectional view of the present invention after the internal structure of the hydraulic clamping mechanism is squeezed;

[0034] In the figure: 1, bottom plate seat; 2, side inclined template; 3, side straight template; 4, total support structure; 401, bottom block; 402, slide rail; 403, connecting frame; 404, hydraulic column; 5, opening and closing mechanism; 501, connecting cylinder; 502, sliding plug; 503, connecting rod; 504, movable plate; 505, spring; 506, push rod; 6, hydraulic clamping mechanism; 601, cylindrical outer shell; 602, movable column; 603, movable block; 604, spring; 605, movable plug; 606, swing rod; 607, connecting block; 608, water flow hole; 609, fixed ring; 7, water tank; 8, water outlet pipe; 9, nozzle; 10, hose; 11, circulating water vacuum pump; 12, clamping groove. Specific embodiments

[0035] 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.

[0036] Please refer to Figures 1 to 7 , an embodiment provided by the present invention: a self-propelled hydraulic formwork for precast box girders, including a bottom plate seat 1. Clamping grooves 12 are provided on both sides of the bottom end of the bottom plate seat 1. Side inclined templates 2 are clamped on both sides of the bottom plate seat 1. Side straight templates 3 are movably provided on the front and rear sides of the side inclined templates 2. Total support structures 4 are fixedly provided at the bottom ends of both sides of the side inclined templates 2. A plurality of water tanks 7 are arranged in sequence at the upper ends of the total support structures 4. A circulating water vacuum pump 11 is fixedly provided at the upper end of the water tank 7. A hose 10 is connected to the upper end of the circulating water vacuum pump 11. One end of the hose 10 is connected to a hydraulic clamping mechanism 6. An opening and closing mechanism 5 is fixedly provided on one side of the hydraulic clamping mechanism 6. An outlet pipe 8 is fixedly provided at the upper end of the opening and closing mechanism 5. One end of the outlet pipe 8 is fixedly connected to a nozzle 9.

[0037] The total support structure 4 includes a plurality of slide rails 402 fixedly arranged in sequence on one side end of the bottom plate seat 1. Hydraulic columns 404 are fixedly connected to the upper ends of the slide rails 402 through support frames. A bottom block 401 is fixedly connected between every two slide rails 402. An inclined surface is provided on one side of the bottom block 401. A connecting frame 403 is fixedly connected to the upper end of the bottom block 401;

[0038] Among them, the hydraulic clamping mechanism 6 includes a cylindrical outer shell 601 fixedly connected to the side end of the bottom plate seat 1. At the bottom end inside the cylindrical outer shell 601, there is a fixed ring 609 fixedly connected. Around the upper end of the fixed ring 609, there are springs 604 connected. The upper ends of the springs 604 are connected to a movable plug 605. In the middle of the lower end of the movable plug 605, there is a movable column 602 fixedly connected. At the lower end of the movable column 602, there is a movable block 603 fixedly connected. On one side of the movable column 602, there is a swing rod 606 connected through a rotating shaft. In the middle of the swing rod 606, there is a connecting block 607 connected through a rotating shaft. One end of the connecting block 607 is fixedly connected to the side end face of the bottom plate seat 1;

[0039] In the overall setting, the circulating water vacuum pump 11 fills the inside of the cylindrical outer shell 601 with water through a hose 10. Then the water pressure of the filled water presses the movable plug 605. Then the movable column 602 drives the swing rod 606 at the lower end to tilt upward, so that one end of the swing rod 606 is clamped in the card slot 12. The overall hydraulic clamping mechanism 6 realizes the automatic clamping of the bottom plate seat 1 and the side inclined template 2 by controlling the water pressure. Then the hydraulic clamping mechanism 6 replaces the existing connection form of bolts and studs, making the clamping more convenient, and this setting enables the clamping to operate automatically;

[0040] The swing rod 606 and the connecting block 607 are connected through a rotating shaft. There is a waist hole penetrating through the middle of the swing rod 606. The setting of this waist hole allows for redundancy in the movement of the rotating shaft, avoiding the phenomenon of the overall swing rod 606 getting stuck during swinging;

[0041] The lower end of the movable block 603 is in pressing fit with the inclined surface on one side of the bottom block 401. One end of the swing rod 606 is clamped in the card slot 12 at the bottom end of the bottom plate seat 1.

[0042] The opening and closing mechanism 5 includes a connecting cylinder 501 fixedly connected to one side end of the cylindrical outer shell 601. A connecting rod 503 is movably penetrated through the middle of the connecting cylinder 501. One end of the connecting rod 503 is fixedly connected to a movable plate 504. Between one end face of the movable plate 504 and one side face of the cylindrical outer shell 601, there is a spring 505 connected. In the middle of one end face of the movable plate 504, there is a push rod 506 fixedly connected. The other end of the connecting rod 503 is fixedly connected to a sliding plug 502;

[0043] When the push rod 506 among them is not squeezed, the movable plate 504 moves driven by the contraction elastic force of the spring 505. Then the movable plate 504 drives the connecting rod 503 at one end. The connecting rod 503 drives the sliding plug 502 on the upper side at one end. One end of the sliding plug 502 is gradually inserted into the water flow hole 608, thereby blocking the water flow hole 608. This prevents the water inside the cylindrical outer shell 601 from entering the connecting cylinder 501 and flowing out. On the upper side of the cylindrical outer shell 601, there is a water flow hole 608 penetrating through the inside of the connecting cylinder 501. The sliding plug 502 is plugged in the water flow hole 608.

[0044] The output end on one side of the hydraulic column 404 is fixedly connected to the side end face of the side inclined template 2. A plurality of sliders are fixedly arranged at the lower end of the side inclined template 2, and the plurality of sliders respectively slide on the upper end of the slide rail 402. Among them, the output end on one side of the hydraulic column 404 laterally pushes the overall side inclined template 2, and the sliders at the lower end of the side inclined template 2 can move laterally in the tracks at the upper end of the slide rail 402. Then, the slide rail 402 enables the stable operation of the overall bottom plate seat 1, side inclined template 2, and side straight template 3.

[0045] A plurality of slide rails are provided at the lower end of the side straight template 3. The upper end of the slide rail is fixedly connected to a hydraulic column through a support frame, and the output end on one side of the hydraulic column is fixedly connected to the side straight template 3. Among them, the setting on the slide rail makes the movement of the overall side straight template 3 more stable;

[0046] After the side inclined template 2, bottom plate seat 1, and side straight template 3 are assembled, the prepared side box girder steel bar framework and bottom box girder steel bar framework are placed inside the bottom plate seat 1, side inclined template 2, and side straight template 3. Then, the inner template is hoisted and placed between the side box girder steel bar framework and the bottom box girder steel bar framework. Next, the top box girder steel bar framework is hoisted and placed on the upper side of the side box girder steel bar framework and the bottom box girder steel bar framework. Finally, cement is poured into the box girder steel bar framework inside the bottom plate seat 1, side inclined template 2, and side straight template 3.

[0047] A method for a self-propelled hydraulic formwork of a precast box girder, the method comprising the following steps:

[0048] Step A: First, the output end on one side of the hydraulic column 404 moves laterally, causing the side inclined templates 2 at both ends of the bottom plate seat 1 to approach laterally on both sides of the bottom plate seat 1. The output end of the hydraulic column on one side of the side straight template 3 pushes the side straight template 3 to approach and join the front end of the side inclined template 2 and the bottom plate seat 1, and the output end of the hydraulic column at the rear end moves the rear side straight template 3 closer to the rear end of the side inclined template 2 and the bottom plate seat 1 for joining;

[0049] Step B: At this time, the states of the overall opening and closing mechanism 5 and the hydraulic clamping mechanism 6 are as Figure 5 shown. At this time, the circulating water vacuum pump 11 at the upper end of the water tank 7 is started, so that the circulating water vacuum pump 11 fills the inside of the cylindrical shell 601 with water through the hose 10. Then, the water pressure of the filled water presses the movable plug 605, and the movable column 602 drives the swing rod 606 at the lower end to tilt upward. Eventually, one end of the swing rod 606 is more tightly clamped in the clamping groove 12. Then, the circulating water vacuum pump 11 is closed. At this time, cement is poured between the bottom plate seat 1, side inclined template 2, and side straight template 3, and wait for the cement to form into a box girder structure;

[0050] Step C: When it is necessary to separate the overall bottom plate seat 1 and the side inclined template 2, the circulating water vacuum pump 11 needs to be started again. The circulating water vacuum pump 11 operates in reverse to draw the water inside the cylindrical shell 601 back to the water tank 7 through the hose 10. At this time, the water pressure inside the cylindrical shell 601 becomes smaller, and the stretching elastic force of the spring 604 continuously lifts the upper movable plug 605. Then, the circulating water vacuum pump 11 is turned off;

[0051] Step D: After the movable plug 605 moves upward, the movable plug 605 drives the lower movable column 602 and the movable block 603 to move upward. As a result, the movable column 602 drives the lower swing rod 606 to tilt upward to one side, and one end of the swing rod 606 disengages from the card slot 12. This setting releases the clamping connection between the bottom plate seat 1 and the swing rod 606. At this time, the states of the opening and closing mechanism 5 and the hydraulic clamping mechanism 6 structures are as follows: Figure 6 shown;

[0052] Step E: Then, the bottom block 401 is opened, and the output end of one end of the bottom block 401 drives the side inclined template 2 to move horizontally. Then, the overall side inclined template 2, the opening and closing mechanism 5, and the hydraulic clamping mechanism 6 move closer to the water tank 7. Since there is an inclined surface on one side of the bottom block 401, this inclined surface is in active contact with the movable block 603, and the continuously upward movement of the movable block 603 pushes the overall movable column 602 and the movable plug 605 upward;

[0053] Step F: After the movable plug 605 moves upward, one side of the movable plug 605 squeezes the push rod 506. The horizontal movement of the push rod 506 drives the connecting rod 503 at one end and the upper sliding plug 502 to move horizontally. Finally, the sliding plug 502 disengages from the water flow hole 608. At this time, the circulating water vacuum pump 11 is started again, and the circulating water vacuum pump 11 pumps the water inside the water tank 7 into the cylindrical shell 601 through the hose 10. At this time, the states of the opening and closing mechanism 5 and the hydraulic clamping mechanism 6 structures are as follows: Figure 7 shown;

[0054] Step G: At this time, the water inside the cylindrical shell 601 enters the connecting cylinder 501 through the water flow hole 608, and the water inside the connecting cylinder 501 is sprayed outwards through the water outlet pipe 8 and the nozzle 9. This setting enables the liquid sprayed by the nozzle 9 to water and maintain the overall formed box girder structure.

[0055] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in all respects, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes that fall within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A prefabricated box beam self-propelled hydraulic formwork, comprising a base plate (1), characterized in that: Both sides of the bottom end of the base plate seat (1) are provided with a clamping groove (12), and both sides of the base plate seat (1) are clamped with a side inclined template (2), and both the front and rear sides of the side inclined template (2) are movably provided with a side straight template (3), and the bottom ends of both sides of the side inclined template (2) are fixedly provided with a general support structure (4), and a plurality of water tanks (7) are arranged at the upper end of the general support structure (4), and a circulating water vacuum pump (11) is fixedly provided at the upper end of the water tank (7), and a hose (10) is connected to the upper end of the circulating water vacuum pump (11), and one end of the hose (10) is connected to a hydraulic clamping mechanism (6), and an opening and closing mechanism (5) is fixedly provided on one side of the hydraulic clamping mechanism (6), and a water outlet pipe (8) is fixedly provided on the upper end of the opening and closing mechanism (5), and a nozzle (9) is fixedly connected to one end of the water outlet pipe (8).

2. The self-propelled hydraulic formwork for prefabricated box beams according to claim 1 is characterized in that: The total support structure (4) comprises a plurality of slide rails (402) evenly arranged and fixed on one side of the base plate seat (1); the upper ends of the slide rails (402) are fixedly connected to a hydraulic column (404) via a support frame; a bottom block (401) is fixedly connected between every two slide rails (402); an inclined surface is provided on one side of the bottom block (401); and the upper end of the bottom block (401) is fixedly connected to a connecting frame (403).

3. The self-propelled hydraulic formwork for prefabricated box beams according to claim 2 is characterized in that: The hydraulic clamping mechanism (6) comprises a cylindrical shell (601) fixedly connected to the side end of the base plate seat (1); a fixing ring (609) is fixedly connected to the bottom end of the cylindrical shell (601); a spring (604) is connected around the upper end of the fixing ring (609); a movable plug (605) is connected to the upper end of the spring (604); a movable column (602) is fixedly connected to the middle of the lower end of the movable plug (605); and a movable block (603) is fixedly connected to the lower end of the movable column (602); One side of the movable column (602) is connected to a swing rod (606) via a rotating shaft, the middle of the swing rod (606) is connected to a connecting block (607) via a rotating shaft, and one end of the connecting block (607) is fixedly connected to the side end surface of the base plate seat (1).

4. The self-propelled hydraulic formwork for prefabricated box beams according to claim 3 is characterized in that: The lower end of the movable block (603) is pressed and fitted with the inclined surface of one side of the bottom block (401).

5. The self-propelled hydraulic formwork for prefabricated box beams according to claim 4 is characterized in that: One end of the swing rod (606) is clamped in a clamping groove (12) at the bottom end of the base plate seat (1).

6. The self-propelled hydraulic formwork for prefabricated box beams according to claim 5, characterized in that: The opening and closing mechanism (5) comprises a connecting tube (501) fixedly connected to one side end of the cylindrical shell (601); a connecting rod (503) is movably provided in the middle of the connecting tube (501); a movable plate (504) is fixedly connected to one end of the connecting rod (503); a spring (505) is connected between one end surface of the movable plate (504) and one side surface of the cylindrical shell (601); a pushing rod (506) is fixedly connected to the middle of one end surface of the movable plate (504); and a sliding plug (502) is fixedly connected to the other end of the connecting rod (503).

7. The self-propelled hydraulic formwork for prefabricated box beams according to claim 6, characterized in that: A water flow hole (608) is provided through one side of the upper side of the cylindrical shell (601) located inside the connecting cylinder (501), and the sliding plug (502) is installed in the water flow hole (608).

8. The self-propelled hydraulic formwork for prefabricated box beams according to claim 7 is characterized in that: The output end of one side of the hydraulic column (404) is fixedly connected to the side end surface of the side inclined template (2), and a plurality of sliding blocks are fixedly arranged at the lower end of the side inclined template (2), and the plurality of sliding blocks slide respectively on the upper ends of the slide rails (402).

9. The self-propelled hydraulic formwork for prefabricated box beams according to claim 8, characterized in that: A plurality of slide rails are provided at the lower end of the side straight formwork (3), and the upper ends of the slide rails are fixedly connected to hydraulic columns via support frames, and an output end on one side of the hydraulic column is fixedly connected to the side straight formwork (3).

10. A method for prefabricating a self-propelled hydraulic formwork for a box beam according to claim 9, characterized in that: The method comprises the following steps: Step A: First, the output end of the hydraulic column (404) moves horizontally, so that the side inclined templates (2) at both ends of the base plate seat (1) are horizontally close to the two sides of the base plate seat (1), and the output end of the hydraulic column on one side of the side straight template (3) pushes the side straight template (3) to the front end of the side inclined template (2) and the base plate seat (1) for splicing, and the output end of the hydraulic column at the rear end pushes the rear end side straight template (3) to the rear end of the side inclined template (2) and the base plate seat (1) for splicing; Step B: At this time, the states of the overall opening and closing mechanism (5) and the hydraulic clamping mechanism (6) are as shown in FIG5 . At this time, the circulating water vacuum pump (11) at the upper end of the water tank (7) is turned on, so that the circulating water vacuum pump (11) fills water into the cylindrical shell (601) through the hose (10). The water pressure of the water presses the movable plug (605), and the movable column (602) drives the swing rod (606) at the lower end to tilt upward, so that one end of the swing rod (606) is finally clamped in the clamping groove (12) more tightly. Then the circulating water vacuum pump (11) is turned off, and cement is poured between the bottom plate seat (1), the side inclined formwork (2) and the side straight formwork (3), waiting for the cement to be formed into a box beam structure; Step C: When the integral bottom plate base (1) and the side inclined template (2) need to be separated, the circulating water vacuum pump (11) needs to be started again. The circulating water vacuum pump (11) operates in reverse to extract the water inside the cylindrical shell (601) through the hose (10) and return it to the water tank (7). At this time, the water pressure inside the cylindrical shell (601) decreases, and the elastic force of the spring (604) continuously lifts the upper movable plug (605), and then the circulating water vacuum pump (11) is turned off; Step D: After the movable plug (605) moves upward, the movable plug (605) drives the movable column (602) and the movable block (603) at the lower end to move upward, and then the movable column (602) drives the swing rod (606) at the lower end to move upward to one side, and then one end of the swing rod (606) is released from the slot (12). This arrangement releases the clamping connection between the bottom plate seat (1) and the swing rod (606). The state of the opening and closing mechanism (5) and the hydraulic clamping mechanism (6) at this time is shown in FIG6; Step E: Then, the bottom block (401) is opened, and the output end at one end of the bottom block (401) is made to drive the side inclined template (2) on one side to move horizontally, so that the overall side inclined template (2), the opening and closing mechanism (5) and the hydraulic clamping mechanism (6) are moved closer to the water tank (7), wherein the overall bottom block (401) is provided with an inclined surface on one side, and the inclined surface and the movable block (603) are movably fitted, and the movable block (603) continuously moves upward to push the overall movable column (602) and the movable plug (605) upward; Step F: After the movable plug (605) moves upward, one side of the movable plug (605) squeezes the push rod (506), and the lateral movement of the push rod (506) drives the connecting rod (503) at one end and the upper sliding plug (502) to move lateraly, and finally the sliding plug (502) is separated from the water flow hole (608). At this time, the circulating water vacuum pump (11) is turned on again, so that the circulating water vacuum pump (11) draws the water inside the water tank (7) into the cylindrical housing (601) through the hose (10). At this time, the structural state of the opening and closing mechanism 5 and the hydraulic clamping mechanism 6 is shown in FIG. 7; Step G: At this time, the water inside the cylindrical shell (601) enters the connecting tube (501) through the water flow hole (608), and the water inside the connecting tube (501) is sprayed outward through the water outlet pipe (8) and the nozzle (9). This arrangement allows the liquid sprayed by the nozzle (9) to water and maintain the integrally formed box beam structure.

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