An intelligent and environmentally friendly spliced precast box girder formwork structure

Abstract

The present invention relates to the technical field of precast box girder equipment, and specifically to an intelligent and environmentally friendly spliced precast box girder formwork structure, which includes an inner formwork, and further includes: a first locking member, which is arranged on the inner formwork and is used to lock adjacent inner formworks; a second locking member, which is arranged inside the inner formwork, and the inner formwork adopts a split design, which includes a bottom formwork and a top formwork. Side formworks are arranged on both sides of the bottom formwork, and deflection formworks are rotatably connected to both sides of the top formwork. Through the split inner formwork design of this device, combined with the walking support frame with intelligent operation and the contraction components thereon, the contraction, disassembly and handling of the formwork are realized, which not only improves the construction efficiency and safety, reduces the manpower requirement and material waste, but also conforms to the environmental protection concept; through the modular inner formwork design of this device, it has strong versatility and adaptability, and can meet the production requirements of precast box girders with different sizes, shapes and spans.

Description

Technical Field

[0001] The present invention relates to the technical field of precast box girder equipment, and particularly to an intelligent and environmentally friendly spliced precast box girder formwork structure. Background Art

[0002] During the production process of precast box girders, the installation and removal of the internal formwork traditionally rely on manual assembly. This method is not only cumbersome to operate but also generates a large amount of waste. For the casting operation of precast small box girders with a span exceeding 25 meters, although there is already a solution using a pull-out internal formwork, such as the "integral pull-out small box girder hydraulic internal formwork and formwork recovery method" disclosed in the Chinese patent application with the application publication number CN111421656A. This method uses multiple hydraulic systems to coordinately control the retraction of the side formwork, bottom formwork, and top formwork to achieve rapid recovery. However, this solution has the problem that at least 12 hydraulic cylinders need to be synchronously controlled, which requires the hydraulic system to not only have high sealing performance but also ensure that all 12 hydraulic cylinders can work properly. This undoubtedly increases the operational complexity of the system and may lead to frequent failures. At the same time, additional steel wheel plates are required for the overall pull-out, which is even more troublesome. Therefore, we propose an intelligent and environmentally friendly spliced precast box girder formwork structure. Summary of the Invention

[0003] To solve the above technical problems, the embodiment of the present application provides an intelligent and environmentally friendly spliced precast box girder formwork structure, including an internal formwork, and further including:

[0004] Locking member one, arranged on the internal formwork and used for locking adjacent internal formworks;

[0005] Locking member two, arranged inside the internal formwork, and the internal formwork adopts a split design, which includes a bottom formwork and a top formwork. Side formworks are arranged on both sides of the bottom formwork, and deflection formworks are rotatably connected to both sides of the top formwork. Locking member two is used for locking the bottom formwork, top formwork, side formworks, and deflection formworks to each other to form the internal formwork;

[0006] Walking support frame, arranged inside the internal formwork and used for walking inside the internal formwork or the precast box girder, and when the walking support frame is docked with the internal formwork, the locking member one and the locking member two can be unlocked;

[0007] Shrinking assembly, arranged on the walking support frame and used for driving the bottom formwork, top formwork, side formworks, and deflection formworks to all disengage from the inner wall of the precast box girder after the walking support frame is docked with the internal formwork.

[0008] In some embodiments, the second locking member includes a first semi-circular ring rotatably connected within the side template. A first sector plate is rotatably connected within the side template through a rotating shaft. Tooth grooves are equidistantly and uniformly formed on the first semi-circular ring, and a plurality of tooth protrusions meshing with the tooth grooves are fixedly connected to the first sector plate at equal intervals and uniformly. An arc-shaped groove is formed on the deflection template, and one end of the first semi-circular ring is located within the arc-shaped groove to lock the deflection template;

[0009] A first sliding rod is slidably connected within the side template. One end of the first sliding rod is fixedly connected to a first sliding plate. A limiting guide groove is formed at one end of the first sliding plate. A first shaft, one end of which is located within the limiting guide groove, is fixedly connected to the first sector plate. A first spring is sleeved on the first sliding rod, and both ends of the first spring are fixed to the first sliding rod and the side template respectively. Moving the first sliding rod drives the first semi-circular ring to rotate to release the lock of the deflection template, and at the same time, the first spring is compressed and contracted to provide a self-restoring elastic force for it;

[0010] A second semi-circular ring is rotatably connected to the bottom template. A second sector plate is rotatably connected within the bottom template through a rotating shaft. Tooth grooves are also equidistantly and uniformly formed on the second semi-circular ring, and a plurality of tooth protrusions meshing with the tooth grooves are fixedly connected to the second sector plate at equal intervals and uniformly. An arc-shaped groove is also formed on the side template, and one end of the second semi-circular ring is located within the arc-shaped groove to lock the side template;

[0011] A second sliding rod is fixedly connected within the bottom template. A second sliding plate is slidably connected to the second sliding rod. A first spring is also sleeved on the second sliding rod, and both ends of the first spring are fixed to the second sliding rod and the second sliding plate respectively. Limiting guide grooves are also formed at both ends of the second sliding plate. A first shaft, one end of which is located within the limiting guide groove, is also fixedly connected to the second sector plate. Moving the second sliding plate drives the second semi-circular ring to rotate to release the lock of the side template, and at the same time, the first spring is compressed and contracted to provide a self-restoring elastic force for it.

[0012] In some embodiments, the first locking member includes a third semi-circular ring rotatably connected to one end of the side template. An arc-shaped groove is also formed at the other end of the side template. The third semi-circular ring at one end of one side template is located within the arc-shaped groove on the adjacent side template to lock the two side templates;

[0013] A third sector plate is rotatably connected within the side template through a rotating shaft. Tooth grooves are also equidistantly and uniformly formed on the third semi-circular ring, and a plurality of tooth protrusions meshing with the tooth grooves are fixedly connected to the third sector plate at equal intervals and uniformly. A second shaft is fixedly connected to the third sector plate, and a second shaft is also fixedly connected to the first sector plate. A first connecting rod is rotatably connected between the two second shafts.

[0014] In some embodiments, a plurality of guide rods are fixedly connected to the top template at equal intervals and uniformly. A slider is slidably connected to the guide rod. A second connecting rod is rotatably connected between the slider and the deflection template through a rotating shaft. A rectangular plate is fixedly connected between the plurality of sliders, which is used to move the rectangular plate to drive the deflection template to deflect and retract.

[0015] In some embodiments, the walking support frame includes a rectangular frame arranged inside the inner mold. A plurality of first electric telescopic rods are fixedly connected to one side of the rectangular frame. Installation blocks are arranged at one ends of the plurality of first electric telescopic rods, and hub motors are installed on the installation blocks:

[0016] And a plurality of second electric telescopic rods are fixedly connected to the other side of the rectangular frame. The extending ends of the second electric telescopic rods are rotatably connected with guide wheels.

[0017] In some embodiments, the contraction assembly includes a plurality of third electric push rods fixedly connected to the bottom of the rectangular frame. A rectangular block is fixedly connected to the third electric push rod. A sliding convex with a T-shaped cross-section is fixedly connected to the bottom template. A chute with a T-shaped cross-section is formed on the rectangular block, and one end of the sliding convex is located in the chute to guide and limit the rectangular frame.

[0018] In some embodiments, a plurality of fourth electric push rods are obliquely and fixedly connected to both sides of the rectangular frame. A rectangular block is also fixedly connected to one end of the fourth electric push rod. A sliding convex with a T-shaped cross-section is also fixedly connected to the side template. A chute with a T-shaped cross-section is also formed on the rectangular block.

[0019] In some embodiments, a plurality of fifth electric push rods are fixedly connected to the top of the rectangular frame. A rectangular block is also fixedly connected to one end of the fifth electric push rod. A chute with a T-shaped cross-section is also formed on the rectangular block. A sliding convex with a T-shaped cross-section is also fixedly connected to the top template.

[0020] In some embodiments, a plurality of sixth electric push rods are fixedly connected to the top of the rectangular frame. An I-shaped plate is fixedly connected to one end of the sixth electric push rod, which is used to embed the rectangular plate into the groove of the I-shaped plate to guide and limit the movement of the rectangular frame;

[0021] And an isosceles trapezoidal block is fixedly connected to the rectangular block on the fourth electric push rod. One end of the sliding rod is rotatably connected with a roller. When the rectangular block slides along the sliding convex, the isosceles trapezoidal block is used to push the roller to move;

[0022] An isosceles trapezoidal block is also fixedly connected to the rectangular block on the third electric push rod. A roller is also rotatably connected to the second sliding plate through a rotating shaft.

[0023] In some embodiments, a plurality of cylinders are fixedly connected to the bottom template at the connection with the side template, and a plurality of circular grooves are correspondingly formed on the side template.

[0024] The present invention has at least the following beneficial effects:

[0025] Through the split inner mold design, combined with the intelligent operation walking support frame and the contraction components thereon, the present device realizes the contraction, disassembly and handling of the formwork, which not only improves the construction efficiency and safety, reduces the manpower requirement and material waste, but also conforms to the environmental protection concept.

[0026] Through the design of the modular inner mold, the present device has strong versatility and adaptability, and can meet the production requirements of precast box girders with different sizes, shapes and spans. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0028] Figure 2 For the present invention Figure 1 is a schematic diagram of the structure from another perspective;

[0029] Figure 3 For the present invention Figure 2 is a schematic diagram of the structure of Area A in the present invention;

[0030] Figure 4 For the present invention Figure 2 is a schematic diagram of the sectional structure;

[0031] Figure 5 For the present invention Figure 4 is a schematic diagram of the structure of Area B in the present invention;

[0032] Figure 6 For the present invention Figure 4 is a schematic diagram of the structure from another perspective;

[0033] Figure 7 For the present invention Figure 6 is a schematic diagram of the structure of Area C in the present invention;

[0034] Figure 8 is a schematic diagram of the structure of the walking support frame of the present invention;

[0035] Figure 9 is a schematic diagram of the structure of the inner mold of the present invention;

[0036] Figure 10 For the present invention Figure 9 is a schematic diagram of the sectional structure;

[0037] Figure 11 For the present invention Figure 10 is a schematic diagram of the sectional structure;

[0038] Figure 12 Schematic diagram of the structure of Embodiment 2 of the present invention;

[0039] Figure 13 For the present invention Figure 11 Enlarged schematic diagram of the structure in area D;

[0040] Figure 14 Schematic diagram of the locked state of the deflection template, side template and adjacent side templates of the present invention.

[0041] In the figure: 1 - inner mold; 2 - locking member one; 3 - locking member two; 4 - bottom template; 5 - top template; 6 - side template; 7 - deflection template; 8 - traveling support frame; 9 - contraction assembly; 31 - semi - circular ring one; 32 - sector plate one; 33 - tooth groove; 34 - tooth projection; 35 - arc groove; 36 - slide bar one; 37 - slide plate one; 38 - limit guide groove; 39 - shaft one; 41 - spring one; 42 - semi - circular ring two; 43 - sector plate two; 44 - slide bar two; 45 - slide plate two; 46 - semi - circular ring three; 47 - sector plate three; 48 - shaft two; 49 - connecting rod one; 51 - guide rod; 52 - slider; 53 - connecting rod two; 54 - rectangular plate; 55 - rectangular frame; 56 - electric telescopic rod one; 57 - mounting block; 58 - hub motor wheel; 59 - electric telescopic rod two; 61 - guide wheel; 62 - electric push rod three; 63 - rectangular block; 64 - sliding projection; 65 - chute; 66 - electric push rod four; 67 - electric push rod five; 68 - electric push rod six; 69 - I - shaped plate; 71 - cylinder; 72 - circular groove; 73 - isosceles trapezoidal block; 74 - roller. Detailed implementation manners

[0042] 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 of 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.

[0043] Embodiment 1: Please refer to Figures 1 - 11 and Figures 13 - 14 , the present invention provides a technical solution: an intelligent environmentally friendly spliced precast box girder formwork structure, including an inner mold 1, and further including:

[0044] A locking member one 2, arranged on the inner mold 1, for locking adjacent inner molds 1;

[0045] The second locking member 3 is arranged inside the inner mold 1, and the inner mold 1 adopts a split design. It includes a bottom template 4 and a top template 5. Side templates 6 are arranged on both sides of the bottom template 4. Deflection templates 7 are rotatably connected to both sides of the top template 5. The second locking member 3 is used to lock the bottom template 4, the top template 5, the side templates 6, and the deflection templates 7 to each other to form the inner mold 1;

[0046] The traveling support frame 8 is arranged inside the inner mold 1 and is used to travel inside the inner mold 1 or the precast box girder. And when the traveling support frame 8 is docked with the inner mold 1, the first locking member 2 and the second locking member 3 can be unlocked;

[0047] The contraction assembly 9 is arranged on the traveling support frame 8 and is used to drive the bottom template 4, the top template 5, the side templates 6, and the deflection templates 7 to all separate from the inner wall of the precast box girder after the traveling support is docked with the inner mold 1;

[0048] Specifically, through the split inner mold 1 design of the device, combined with the intelligent operation traveling support frame 8 and the contraction assembly 9 thereon, the contraction, disassembly, and handling of the formwork are realized. It not only improves the construction efficiency and safety, reduces the labor demand and material waste, but also conforms to the environmental protection concept. At the same time, the modular inner mold 1 design has strong versatility and adaptability, and can meet the production requirements of precast box girders with different sizes, shapes, and spans.

[0049] The second locking member 3 includes a semi-circular ring one 31 rotatably connected inside the side template 6. A sector plate one 32 is rotatably connected inside the side template 6 through a rotating shaft. Tooth grooves 33 are equidistantly and uniformly opened on the semi-circular ring one 31, and a plurality of tooth protrusions 34 meshing with the tooth grooves 33 are equidistantly and uniformly fixedly connected on the sector plate one 32. And an arc groove 35 is opened on the deflection template 7. When half of the semi-circular ring one 31 is located inside the arc groove 35, the side template 6 and the deflection template 7 can be connected and locked;

[0050] And a slide bar one 36 is slidably connected inside the side template 6. One end of the slide bar one 36 is fixedly connected with a slide plate one 37. The slide plate one 37 is also located inside the side template 6 and is slidably connected with its inner wall. A limit guide groove 38 is opened at one end of the slide plate one 37. A shaft one 39 with one end located inside the limit guide groove 38 is fixedly connected to the sector plate one 32. The shaft one 39 is slidably connected with the inner wall of the limit guide groove 38. And a spring one 41 is sleeved on the slide bar one 36. Both ends of the spring one 41 are fixedly connected with the slide bar one 36 and the side template 6 respectively. By moving the slide bar one 36 to drive the slide plate one 37 to move, and then driving the sector plate one 32 to deflect, thereby driving the semi-circular ring one 31 to rotate and retract into the side template 6 to release the lock of the deflection template 7. In this process, the spring one 41 is compressed and contracted to provide its self-restoring elastic force;

[0051] A semi-circular ring two 42 is rotatably connected to the bottom template 4. A sector plate two 43 is rotatably connected to the bottom template 4 through a rotating shaft. Tooth grooves 33 are equally spaced and uniformly formed on the semi-circular ring one 31. A plurality of tooth protrusions 34 meshing with the tooth grooves 33 are equally spaced and uniformly fixedly connected to the sector plate two 43. An arc groove 35 is also formed on the side template 6. One end of the semi-circular ring two 42 is located in the arc groove 35 to lock the side template 6;

[0052] A slide bar two 44 is fixedly connected to the bottom template 4. A slide plate two 45 is slidably connected to the slide bar two 44. The slide plate two 45 is also slidably connected to the bottom template 4. A first spring 41 is also sleeved on the slide bar two 44. Two ends of the first spring 41 are respectively fixedly connected to the slide bar two 44 and the slide plate two 45. Limiting guide grooves 38 are also formed at two ends of the slide plate two 45. A shaft one 39 with one end located in the limiting guide groove 38 is also fixedly connected to the sector plate two 43. By moving the slide plate two 45, the sector plate two 43 is driven to rotate, and then the semi-circular ring two 42 is driven to rotate and retract to release the lock on the side template 6. During this process, the first spring 41 is compressed and contracted to provide self-restoring elastic force for it.

[0053] The locking member one 2 includes a semi-circular ring three 46 rotatably connected to one end of the side template 6. An arc groove 35 is also formed at the other end of the side template 6. The semi-circular ring three 46 at one end of the side template 6 on one inner mold 1 is located in the arc groove 35 on the side template 6 of the adjacent inner mold 1 to lock the two groups of inner molds 1 to each other;

[0054] A sector plate three 47 is rotatably connected to the side template 6 through a rotating shaft. Tooth grooves 33 are equally spaced and uniformly formed on the semi-circular ring three 46. A plurality of tooth protrusions 34 meshing with the tooth grooves 33 are equally spaced and uniformly fixedly connected to the sector plate three 47. A shaft two 48 is fixedly connected to the sector plate three 47. A shaft two 48 is also fixedly connected to the sector plate one 32. A connecting rod one 49 is rotatably connected between the two shafts two 48. Then, when the sector plate one 32 rotates, the sector plate three 47 is driven to rotate through the connecting rod one 49, and then the circular ring three is driven to rotate and retract to release the lock between the two inner molds 1.

[0055] A plurality of guide rods 51 are equally spaced and uniformly fixedly connected to the top template 5. A slider 52 is slidably connected to the guide rods 51. A connecting rod two 53 is rotatably connected between the slider 52 and the deflection template 7. A rectangular plate 54 is fixedly connected between the plurality of sliders 52 and is used to move the rectangular plate 54 to drive the plurality of sliders 52 to move, and then drive the deflection template 7 to fold and retract through the connecting rod two 53.

[0056] The walking support frame 8 includes a rectangular frame 55 arranged inside the inner mold 1. A plurality of electric telescopic rods one 56 are fixedly connected to one side of the rectangular frame 55. The extending ends of the plurality of electric telescopic rods one 56 are all fixedly connected with mounting blocks 57. Hub motors 58 are mounted on the mounting blocks 57:

[0057] And on the other side of the rectangular frame 55, a plurality of second electric telescopic rods 59 are fixedly connected. The extending end of the second electric telescopic rod 59 is rotationally connected with a guide wheel 61 through a rotating shaft. Specifically, when the rectangular frame 55 is inserted into the inner mold 1, the second electric push rod and the first electric push rod are started to drive the hub motor wheel 58 to contact and abut against the bottom template 4, and at the same time drive the guide wheel 61 to contact and abut against the top template 5, or start the first electric push rod and the second electric push rod to make the hub motor wheel 58 abut against the upper and lower surfaces inside the precast box girder, and then start the hub motor wheel 58 to drive the rectangular frame 55 to move along the cavity of the inner mold 1 or move along the precast box girder, or, according to requirements, through the independent control of a plurality of hub motor wheels 58 to achieve fixing the rectangular frame 55 to the precast box girder, and then drive the contracted inner mold 1 to move relative to the rectangular frame 55, or, the contracted inner mold 1 is fixed to the rectangular frame 55, and then use the rectangular frame 55 to drive it to move along the precast box girder.

[0058] The contraction assembly 9 includes a plurality of third electric telescopic rods 62 fixedly connected to the bottom of the rectangular frame 55. The extending end of the third electric telescopic rod 62 is fixedly connected with a rectangular block 63, and a T-shaped sliding convex 64 is fixedly connected to the bottom template 4. A T-shaped sliding groove 65 is formed on the rectangular block 63. One end of the sliding convex 64 is located in the sliding groove 65 to guide and limit the rectangular frame 55. Specifically, when the rectangular frame 55 is inserted into the inner mold 1, the rectangular block 63 will be inserted into the sliding convex 64, so as to connect the third electric telescopic rod 62 with the bottom template 4.

[0059] A plurality of fourth electric telescopic rods 66 are obliquely and fixedly connected to both sides of the rectangular frame 55. The extending end of the fourth electric telescopic rod 66 is also fixedly connected with a rectangular block 63. A T-shaped sliding convex 64 is also fixedly connected to the side template 6. A T-shaped sliding groove 65 is also formed on the rectangular block 63. Similarly, when the rectangular frame 55 is inserted into the inner mold 1, the rectangular block 63 will be inserted into the sliding convex 64, so as to connect the fourth electric telescopic rod 66 with the side template 6.

[0060] A plurality of fifth electric telescopic rods 67 are fixedly connected to the top end of the rectangular frame 55. The extending end of the fifth electric telescopic rod 67 is also fixedly connected with a rectangular block 63. A T-shaped sliding groove 65 is also formed on the rectangular block 63. A T-shaped sliding convex 64 is also fixedly connected to the top template 5. Similarly, when the rectangular frame 55 is inserted into the inner mold 1, the rectangular block 63 will be inserted into the sliding convex 64, so as to connect the fifth electric telescopic rod 67 with the top template 5.

[0061] A plurality of sixth electric telescopic rods 68 are fixedly connected to the top end of the rectangular frame 55. One end of the sixth electric telescopic rod 68 is fixedly connected with an I-shaped plate 69. When the rectangular frame 55 is inserted into the inner mold 1, one end of the rectangular plate 54 will slide and be inserted into the groove of the I-shaped plate 69, so as to connect the sixth electric telescopic rod 68 with the deflection template 7;

[0062] Moreover, an isosceles trapezoidal block 73 is fixedly connected to a rectangular block 63 on the electric push rod four 66, and a roller 74 is rotatably connected to one end of the sliding rod one 36 through a rotating shaft. A sliding groove is formed in the side template 6, and the rotating shaft of the roller 74 slides through the sliding groove. When the rectangular block 63 slides along the sliding convex 64, the isosceles trapezoidal block 73 is used to push the roller 74 to move;

[0063] An isosceles trapezoidal block 73 is also fixedly connected to a rectangular block 63 on the electric push rod three 62, and a roller 74 is also rotatably connected to the sliding plate two 45 through a rotating shaft. A sliding groove is also formed in the bottom template 4, and the rotating shaft of the roller 74 slides through the sliding groove.

[0064] Specifically, when multiple inner molds 1 need to be removed continuously, the device is inserted into the inner mold 1. At the same time, after the rectangular frame 55 is embedded into two inner molds 1, each rectangular block 63 will be inserted into the corresponding sliding convex 64, so as to connect the electric push rod three 62 with the bottom template 4, the electric push rod four 66 with the side template 6, the electric push rod five 67 with the top template 5, and the electric push rod six 68 with the deflection template 7. Subsequently, the hub motor wheel 58 is started, and the device is moved in the inner mold 1 to between the first two inner molds 1. Then, the electric push rod six 68, the electric push rod five 67, the electric push rod three 62, and the electric push rod four 66 located in one of the inner molds 1 at the end of the continuous inner molds 1 are started in sequence, so as to reduce this inner mold 1 and at the same time disengage it from the inner wall of the precast box template. Then, the hub motor wheel 58 located in the second inner mold 1 is started, so as to drive the device and the reduced inner mold 1 to move, and further push the reduced inner mold 1 out of the precast box girder. In this way, multiple inner molds 1 are taken out.

[0065] Embodiment 2: Please refer to Figures 1 - 14 , the present invention provides a technical solution: Embodiment 2 is optimized on the basis of Embodiment 1;

[0066] A plurality of cylinders 71 are fixedly connected to the connection part between the bottom template 4 and the side template 6, and a plurality of circular grooves 72 are correspondingly formed in the side template 6 to enhance the stability of the connection of the inner mold 1.

[0067] It should be noted that in this article, relational terms such as first and second are only used 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 term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to this process, method, article or device.

[0068] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. An intelligent and environmentally friendly spliced precast box girder formwork structure, including an internal form, characterized in that: It further includes: A first locking member, arranged on the inner mold, for locking adjacent inner molds; A second locking member, arranged inside the inner mold, and the inner mold adopts a split design, which includes a bottom template, a top template, side templates are arranged on both sides of the bottom template, and deflection templates are rotatably connected to both sides of the top template. The second locking member is used to lock the bottom template, the top template, the side templates and the deflection templates to form the inner mold; A walking support frame, arranged inside the inner mold, for walking inside the inner mold or the precast box girder, and the first locking member and the second locking member can be unlocked after the walking support frame is docked with the inner mold; A contraction assembly, arranged on the walking support frame, for driving the bottom template, the top template, the side templates and the deflection templates to all disengage from the inner wall of the precast box girder after the walking support frame is docked with the inner mold; The second locking member includes a first semi-circular ring rotatably connected inside the side template, a first sector plate is rotatably connected inside the side template through a rotating shaft, tooth grooves are equidistantly and uniformly arranged on the first semi-circular ring, and a plurality of tooth protrusions meshing with the tooth grooves are fixedly connected to the first sector plate at equal intervals and uniformly. An arc-shaped groove is formed on the deflection template, and one end of the first semi-circular ring is located inside the arc-shaped groove to lock the deflection template; And a first sliding rod is slidably connected inside the side template, one end of the first sliding rod is fixedly connected with a first sliding plate, a limiting guide groove is formed at one end of the first sliding plate, a first shaft located inside the limiting guide groove is fixedly connected to the first sector plate, and a first spring is sleeved on the first sliding rod. The two ends of the first spring are respectively fixed to the first sliding rod and the side template. Moving the first sliding rod drives the first semi-circular ring to rotate to unlock the deflection template, and at the same time, the first spring is compressed and contracted to provide a self-restoring elastic force for it; And a second semi-circular ring is rotatably connected to the bottom template, a second sector plate is rotatably connected inside the bottom template through a rotating shaft, tooth grooves are also equidistantly and uniformly arranged on the second semi-circular ring, and a plurality of tooth protrusions meshing with the tooth grooves are also fixedly connected to the second sector plate at equal intervals and uniformly. An arc-shaped groove is also formed on the side template, and one end of the second semi-circular ring is located inside the arc-shaped groove to lock the side template; A second sliding rod is fixedly connected inside the bottom template, a second sliding plate is slidably connected to the second sliding rod, a first spring is also sleeved on the second sliding rod, the two ends of the first spring are respectively fixed to the second sliding rod and the second sliding plate, limiting guide grooves are also formed at both ends of the second sliding plate, and a first shaft located inside the limiting guide groove is also fixedly connected to the second sector plate. Moving the second sliding plate drives the second semi-circular ring to rotate to unlock the side template, and at the same time, the first spring is compressed and contracted to provide a self-restoring elastic force for it.

2. The intelligent and environmentally friendly spliced precast box girder formwork structure according to claim 1, wherein: The first locking member includes a third semi-circular ring rotatably connected to one end of the side template, and an arc-shaped groove is also formed at the other end of the side template. The third semi-circular ring at one end of one side template is located inside the arc-shaped groove on the adjacent side template to lock the two side templates; A sector plate three is rotatably connected to the side template via a rotating shaft, and teeth grooves are also evenly and equidistantly provided on the semicircular ring three, and a plurality of teeth protrusions that engage with the teeth grooves are also evenly and equidistantly fixedly connected to the sector plate three, and shaft two is fixedly connected to the sector plate one, and a connecting rod one is rotatably connected between the two shafts two.

3. The intelligent environmental protection type spliced precast box girder formwork structure according to claim 2, characterized in that: A plurality of guide rods are evenly and equidistantly fixedly connected to the top template, a slider is slidably connected to the guide rod, a connecting rod 2 is rotatably connected between the slider and the deflection template via a rotating shaft, and a rectangular plate is fixedly connected between the plurality of sliders, which is used to move the rectangular plate to drive the deflection template to deflect and retract.

4. The intelligent environmental protection type spliced precast box girder formwork structure according to claim 3, characterized in that: The walking support frame includes a rectangular frame arranged in the inner mold, and a plurality of electric telescopic rods are fixedly connected to one side of the rectangular frame. The ends of the plurality of electric telescopic rods are each provided with a mounting block, and the hub motor wheel is installed on the mounting block: A plurality of electric telescopic rods 2 are fixedly connected to the other side of the rectangular frame, and the extended ends of the electric telescopic rods 2 are rotatably connected to guide wheels.

5. The intelligent and environmentally friendly spliced precast box girder formwork structure according to claim 4, characterized in that: The contraction assembly includes multiple electric push rods three fixedly connected to the bottom of the rectangular frame, a rectangular block is fixedly connected to the electric push rods three, and a sliding protrusion with a T-shaped cross section is fixedly connected to the bottom template, and a sliding groove with a T-shaped cross section is provided on the rectangular block, and one end of the sliding protrusion is located in the sliding groove to guide and limit the rectangular frame.

6. The intelligent environmental protection type spliced precast box girder formwork structure according to claim 5, characterized in that: Multiple electric push rods four are fixedly connected to both sides of the rectangular frame at an angle, and one end of the electric push rod four is also fixedly connected to a rectangular block. A sliding protrusion with a T-shaped cross section is also fixedly connected to the side template, and a sliding groove with a T-shaped cross section is also provided on the rectangular block.

7. The intelligent and environmentally friendly spliced precast box girder formwork structure according to claim 6, characterized in that: A plurality of electric push rods 5 are fixedly connected to the top of the rectangular frame, and one end of the electric push rod 5 is also fixedly connected to a rectangular block. The rectangular block is also provided with a sliding groove with a T-shaped cross section, and the top template is also fixedly connected with a sliding protrusion with a T-shaped cross section.

8. The intelligent environmental protection type spliced precast box girder formwork structure according to claim 7, characterized in that: The top of the rectangular frame is fixedly connected to a plurality of electric push rods 6, one end of which is fixedly connected to an I-shaped plate, which is used to embed the rectangular plate into the groove of the I-shaped plate to guide and limit the movement of the rectangular frame; An isosceles trapezoidal block is fixedly connected to the rectangular block on the electric push rod 4, and one end of the sliding rod is rotatably connected to a roller via a rotating shaft. When the rectangular block slides along the sliding protrusion, the isosceles trapezoidal block is used to push the roller to move; An isosceles trapezoidal block is also fixedly connected to the rectangular block on the electric push rod 3, and a roller is also rotatably connected to the slide plate 2 via a rotating shaft.

9. The intelligent environmental protection type spliced precast box girder formwork structure according to claim 1, characterized in that: A plurality of cylinders are fixedly connected to the connection between the bottom template and the side template, and a plurality of circular grooves are correspondingly opened on the side template.

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