Downward bridge building machine template intelligent opening and closing system

Abstract

The utility model relates to a descending type bridge building machine formwork intelligent opening and closing system, and belongs to the technical field of bridge cantilever pouring construction. The outer supporting adjusting unit comprises a main truss located on one side of the web plate mold and a supporting frame fixedly connected with the wing plate mold, and the main truss is provided with a jacking part used for vertically jacking the supporting frame and a pushing part used for laterally pushing the supporting frame; a telescopic supporting rod used for vertically abutting against the top face of the main truss is arranged on the supporting frame. Through cooperation of the pushing piece and the jacking piece, automatic mold closing or mold opening of the outer side mold can be achieved, then through cooperation of the telescopic supporting rod, the load above the supporting frame can be stably transmitted to the main truss, the stability of the outer side mold after mold closing is guaranteed, automatic mold opening and closing are achieved, manual assistance is not needed, and the working efficiency is improved. The device has the advantages of being easy to operate, high in working efficiency, better in safety, wide in application range and good in application prospect.

Description

Technical Field

[0001] This application relates to the field of bridge cantilever construction technology, and in particular to an intelligent opening and closing system for formwork of a descending bridge construction machine. Background Technology

[0002] Currently, the length of cantilever construction segments for continuous beam rigid frame bridges in China has increased to 6 to 8 meters. Bridge construction machines, as a new type of intelligent equipment for large-segment construction, have significant advantages in automation and construction efficiency. However, traditional hanging baskets and descending bridge construction machines still rely on manual traction and pulling to achieve demolding during the side formwork assembly and disassembly process, and manually adjust the formwork positioning using chain hoists or jacks. This process has obvious technical bottlenecks.

[0003] The existing construction methods suffer from three major drawbacks: first, the safety risks of manual high-altitude formwork removal are significant; second, manual operation leads to low efficiency, making it difficult to match the pace of large-segment construction; and third, the precision control of manual formwork adjustment is difficult under complex conditions. These problems severely restrict the safety and industrialized construction level of cantilever casting for long-span bridges. Summary of the Invention

[0004] To address the shortcomings or deficiencies mentioned in the background technology above, this application provides a descending bridge construction machine formwork intelligent opening and closing system, which can realize the automatic opening and closing of the bridge construction machine formwork without manual assistance. It has the advantages of simple operation, high work efficiency, and better safety, and has a wide range of applications and good application prospects.

[0005] This application provides an intelligent opening and closing system for the formwork of a down-draft bridge construction machine, including:

[0006] The outer mold includes a wing mold and a web mold that are fixedly connected to each other;

[0007] The external support adjustment unit includes a main truss located on one side of the web plate mold and a support frame fixedly connected to the wing plate mold. The main truss is provided with a lifting member for vertically lifting the support frame and a pushing member for laterally pushing the support frame. The support frame is provided with a telescopic support rod for vertically pressing the top surface of the main truss.

[0008] In some embodiments, the main truss is provided with a clamping member for laterally clamping the web mold, and a clamping block is provided between the clamping end of the clamping member and the web mold.

[0009] In some embodiments, the support frame has a steel section located directly above the main truss on the side near the main truss, and the telescopic support rod includes a support screw threaded to the steel section and a drive mechanism for driving the support screw to rotate so that the support screw moves up and down.

[0010] In some embodiments, supports are provided on both sides of the main truss, and the lifting member and the pushing member are respectively fixed on the supports on both sides. The top of the lifting member is provided with a transverse sliding block that is slidably connected to the support frame. A guide plate is fixed on the support frame, and the driving end of the pushing member is provided with a vertical sliding block that is slidably connected to the guide plate.

[0011] In some embodiments, the system further includes an inner mold lifting beam and a lifting rod for fixing the inner mold lifting beam. The inner mold lifting beam is provided with a support beam, and the support beam is provided with an inner side mold and an inner support adjustment unit for supporting and adjusting the inner side mold.

[0012] In some embodiments, the inner mold includes symmetrically arranged corner molds and a top plate mold disposed between the two corner molds. The inner support adjustment unit includes a first drive assembly for driving the top plate mold to rise and fall, and a second drive assembly for driving the two corner molds to move closer or further apart.

[0013] In some embodiments, the second drive assembly includes a carriage symmetrically arranged on the support beam and fixedly connected to the corner molds on both sides, and a first drive member symmetrically arranged on the support beam for driving the carriages on both sides to move closer or further apart laterally.

[0014] In some embodiments, the first drive assembly includes a telescopic rod disposed on the support beam for vertically pressing against the top plate mold, and a telescopic diagonal brace disposed on the slide for supporting the top plate mold, one end of the telescopic diagonal brace being hinged to the slide and the other end being hinged to the top plate mold.

[0015] In some embodiments, the inner mold further includes symmetrically arranged side plate molds, which are hinged to the slide, and a second driving member is hinged between the slide and the side plate mold for driving the side plate mold to rotate around the slide.

[0016] In some embodiments, the system further includes a lower crossbeam and a lower longitudinal beam fixed to the lower crossbeam, wherein a bottom plate mold that mates with the web mold is fixed to the lower longitudinal beam.

[0017] The beneficial effects of the technical solution provided in this application include:

[0018] This application provides an intelligent opening and closing system for a descending bridge construction machine template. The outer template includes a wing plate template and a web plate template that are fixedly connected to each other. The outer support adjustment unit includes a main truss located on one side of the web plate template and a support frame fixedly connected to the wing plate template. The main truss is provided with a lifting member for vertically lifting the support frame and a pushing member for laterally pushing the support frame. The support frame is provided with a telescopic support rod for vertically tightening the top surface of the main truss.

[0019] Therefore, the jacking component can push the support frame to move the web mold laterally, and the lifting component can push the support frame to move the wing mold vertically, thus realizing automatic mold closing or opening of the outer mold. In addition, with the telescopic support rod installed on the support frame, when the outer mold is closed, the telescopic support rod extends downward to press against the top surface of the main truss. The telescopic support rod supports the top surface of the main truss, so that the load above the support frame can be stably transferred to the main truss, thereby ensuring the stability of the outer mold after mold closing. Automatic mold opening and closing is achieved without manual assistance. It has the advantages of simple operation, high work efficiency, and better safety. It has a wide range of applications and good application prospects. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram showing the arrangement of the main truss and the outer formwork in an embodiment of this application;

[0022] Figure 2 This is a schematic diagram of the external support adjustment unit according to an embodiment of this application;

[0023] Figure 3 This is a schematic diagram illustrating the implementation of the inner mold in an embodiment of this application;

[0024] Figure 4 This is a schematic diagram of the inner mold structure according to an embodiment of this application;

[0025] Figure 5 This is a schematic diagram of the internal support adjustment unit in an embodiment of this application.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Wing plate mold; 2. Web plate mold; 3. Main truss; 4. Support frame; 5. Lifting component; 6. Pushing component; 7. Telescopic support rod; 71. Support screw; 72. Drive mechanism; 8. Tightening component; 9. Tightening block; 10. Section steel; 11. Support; 12. Horizontal sliding block; 13. Guide plate; 14. Vertical sliding block; 15. Inner mold lifting beam; 16. Lifting rod; 17. Support beam; 18. Corner mold; 19. Top plate mold; 20. Slide frame; 21. First drive component; 22. Telescopic rod; 23. Telescopic diagonal brace; 24. Side plate mold; 25. Second drive component; 26. Lower crossbeam; 27. Lower longitudinal beam; 28. Bottom plate mold. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] To address the shortcomings or deficiencies mentioned in the background technology above, this application provides a descending bridge construction machine formwork intelligent opening and closing system, which can realize the automatic opening and closing of the bridge construction machine formwork without manual assistance. It has the advantages of simple operation, high work efficiency, and better safety, and has a wide range of applications and good application prospects.

[0030] See Figures 1 to 5 As shown in the figure, this application embodiment provides an intelligent opening and closing system for the formwork of a down-draft bridge construction machine, including:

[0031] The outer mold includes a wing mold 1 and a web mold 2 that are fixedly connected to each other;

[0032] The external support adjustment unit includes a main truss 3 located on one side of the web plate mold 2 and a support frame 4 fixedly connected to the wing plate mold 1. The main truss 3 is provided with a lifting member 5 for vertically lifting the support frame 4 and a pushing member 6 for laterally pushing the support frame 4. The support frame 4 is provided with a telescopic support rod 7 for vertically tightening the top surface of the main truss 3.

[0033] The intelligent opening and closing system of the formwork for the down-draft bridge building machine in this application embodiment is provided with an outer formwork and an outer support adjustment unit. The outer formwork includes a wing plate formwork 1 and a web plate formwork 2. The outer support adjustment unit includes a main truss 3 and a support frame 4. The main truss 3 is not only the main load-bearing structure of the bridge building machine, but also the main support system of the outer formwork. The top surface and side surface of the support frame 4 are welded and fixed to the wing plate formwork 1 and the web plate formwork 2, respectively.

[0034] The main truss 3 is equipped with a lifting component 5 and a pushing component 6. The pushing component 6 can push the support frame 4 to drive the web plate mold 2 to move laterally. At the same time, the lifting component 5 can push the support frame 4 to drive the wing plate mold 1 to move vertically, thereby realizing the automatic closing or opening of the outer mold.

[0035] In addition, with the telescopic support rod 7 installed on the support frame 4, when the outer mold is closed in place, the telescopic support rod 7 extends downward and presses against the top surface of the main truss 3. The telescopic support rod 7 supports the top surface of the main truss 3, so that the load above the support frame 4 can be stably transferred to the main truss 3, thereby ensuring the stability of the outer mold after it is closed.

[0036] For example, multiple lifting components 5, pushing components 6, and telescopic support rods 7 are spaced apart along the length of the main truss 3. Lifting components 5 and pushing components 6 are hydraulic cylinders, and telescopic support rods 7 are electric screw jacks to achieve automatic vertical extension and retraction of the upper screw to abut the top surface of the main truss 3. The hydraulic cylinders and electric screw jacks are connected to an external controller to achieve automatic mold opening and closing without manual assistance, thus achieving the goals of simple operation, high work efficiency, and better safety. It has a wide range of applications and good application prospects.

[0037] In other embodiments, stress sensors can be installed at the ends of the hydraulic cylinders and lead screws, and threshold values ​​can be set to ensure that intelligent operation is in a safe state. Infrared laser rangefinders can be installed on the end panels of the inner and outer templates, and a Beidou positioning system can be installed on the top to monitor the opening and closing displacement of the templates. The relevant monitoring data is fed back to the centralized control system of the external hydraulic lifting component 5, which can realize automatic verification and correction, and realize one-button control of template opening and closing.

[0038] In other embodiments, a Beidou terminal and an inclinometer can be installed on the main truss 3 to collect the three-dimensional coordinates and attitude data of the bridge construction machine in real time. The high-precision monitoring data is compared with the theoretical coordinates to autonomously correct the template positioning value. Under the one-click template adjustment command of the controller, the vertical hydraulic cylinders and the horizontal hydraulic cylinders automatically adjust the inner and outer templates to the design position, achieving millimeter-level positioning of the template attitude.

[0039] In some alternative embodiments: see Figures 1 to 5 As shown in the figure, this application embodiment provides a descending bridge construction machine formwork intelligent opening and closing system. The main truss 3 of the descending bridge construction machine formwork intelligent opening and closing system is provided with a clamping member 8 for laterally clamping the web formwork 2. A clamping block 9 is provided between the clamping end of the clamping member 8 and the web formwork 2.

[0040] In this embodiment, a clamping member 8 is fixedly installed on the side of the main truss 3 near the web mold 2. A clamping block 9 is fixedly installed on the clamping end of the clamping member 8. When the lifting member 5 and the pushing member 6 installed on the main truss 3 cooperate with each other to make the outer mold close in place, the clamping member 8 can drive the clamping block 9 to clamp the web mold 2, thereby improving the stability of the web mold 2 after overall mold closing. For example, the clamping member 8 can be a hydraulic cylinder, just like the pushing member 6, and multiple cylinders can be arranged at intervals along the length of the main truss 3, and automatic control can be achieved in conjunction with an external controller.

[0041] In some alternative embodiments: see Figures 1 to 5As shown, this application embodiment provides a descending bridge construction machine formwork intelligent opening and closing system. The support frame 4 of the descending bridge construction machine formwork intelligent opening and closing system is provided with a steel section 10 located directly above the main truss 3 on the side near the main truss 3. The telescopic support rod 7 includes a support screw 71 threadedly connected to the steel section 10, and a drive mechanism 72 for driving the support screw 71 to rotate so that the support screw 71 moves up and down.

[0042] In this embodiment, the support frame 4 is welded and fixed with a steel section 10 on the side near the main truss 3. The telescopic support rod 7 includes a support screw 71 and a drive mechanism 72. The support screw 71 is threaded onto the steel section 10. The drive mechanism 72 can drive the support screw 71 to press against the top surface of the main truss 3. The load above can be stably transmitted to the main truss 3 through the steel section 10 and the support screw 71, ensuring the stability of the template support.

[0043] For example, the drive mechanism 72 can be an electric screw jack fixed to the steel profile 10, enabling the support screw 71 to move up and down using a worm gear mechanism. In other embodiments, the drive mechanism 72 is a hollow rotary hydraulic cylinder or pneumatic cylinder, with its cylinder body fixed to the steel profile 10. The support screw 71 passes through the hollow area of ​​the cylinder body and is coaxially arranged with the cylinder body. A threaded sleeve that is threadedly connected to the support screw 71 is fixedly installed at its rotating end, and the support screw 71 moves up and down by driving the threaded sleeve to rotate.

[0044] In some alternative embodiments: see Figures 1 to 5 As shown in the embodiment of this application, a smart opening and closing system for a down-type bridge construction machine template is provided. The main truss 3 of the smart opening and closing system for a down-type bridge construction machine template is provided with supports 11 on both sides. The lifting component 5 and the pushing component 6 are respectively fixed on the supports 11 on both sides. The top of the lifting component 5 is provided with a transverse sliding block 12 that is slidably connected to the support frame 4. The support frame 4 is fixed with a guide plate 13. The driving end of the pushing component 6 is provided with a vertical sliding block 14 that is slidably connected to the guide plate 13.

[0045] In this embodiment, supports 11 are fixedly installed on both sides of the main truss 3. The supports 11 are corbel brackets, which are used to fix the lifting member 5 and the pushing member 6 respectively. To facilitate the vertical and horizontal movement of the support frame 4 without interference, the top of the lifting member 5 is fixedly connected to a transverse sliding block 12 that is laterally slidably connected to the support frame 4. A guide plate 13 is fixedly installed on the support frame 4. The guide plate 13 has a vertical strip hole. The driving end of the pushing member 6 is fixedly connected to a vertical sliding block 14 that is slidably connected to the vertical strip hole.

[0046] In some alternative embodiments: see Figures 1 to 5As shown in the figure, this application embodiment provides a descending bridge construction machine formwork intelligent opening and closing system. The descending bridge construction machine formwork intelligent opening and closing system also includes an inner formwork lifting beam 15 and a lifting rod 16 for fixing the inner formwork lifting beam 15. A support beam 17 is provided on the inner formwork lifting beam 15, and an inner side formwork and an inner support adjustment unit for supporting and adjusting the inner side formwork are provided on the support beam 17.

[0047] In this embodiment of the application, the inner mold hanging beam 15 is fixed by the hanging rod 16. The upper end of the hanging rod 16 can be fixed on the cast-in-place segment. The inner mold hanging beam 15 extends forward and protrudes from the cast-in-place segment. The protruding part is fixedly installed with the support beam 17. The support beam 17 is equipped with the inner side mold and the inner support adjustment unit. The position of the inner side mold can be adjusted through the inner support adjustment unit to realize the automatic opening and closing of the inner side mold.

[0048] In some alternative embodiments: see Figures 1 to 5 As shown in the figure, this application provides a smart opening and closing system for a down-type bridge building machine template. The inner template of the smart opening and closing system includes symmetrically arranged corner templates 18 and a top plate template 19 disposed between the two corner templates 18. The inner support adjustment unit includes a first drive component for driving the top plate template 19 to rise and fall, and a second drive component for driving the two corner templates 18 to move closer or further away from each other.

[0049] The inner mold of this application embodiment includes symmetrically arranged corner molds 18, which have an L-shaped structure. A top plate mold 19 is installed between the two corner molds 18. The inner support adjustment unit includes a first drive assembly and a second drive assembly. The docking ends of the top plate mold 19 and the corner mold 18 are both vertical surfaces, which facilitates the first drive assembly to drive the top plate mold 19 to descend and detach from the corner mold 18. In conjunction with the second drive assembly, the two corner molds 18 can be driven to move closer to each other, thereby completing the demolding action.

[0050] In some alternative embodiments: see Figures 1 to 5 As shown, this application embodiment provides a descending bridge construction machine formwork intelligent opening and closing system. The second drive component of the descending bridge construction machine formwork intelligent opening and closing system includes a slide 20 symmetrically arranged on the support beam 17 and fixedly connected to the corner molds 18 on both sides, and a first drive member 21 symmetrically arranged on the support beam 17 and used to drive the slides 20 on both sides to move closer or further apart in the lateral direction.

[0051] The second driving component in this embodiment includes symmetrically arranged slides 20. The two slides 20 are slidably connected to the support beam 17 and fixedly connected to the two corner molds 18. A first driving member 21 is mounted on the support beam 17. The first driving member 21 can drive the two slides 20 to slide laterally along the support beam 17, thereby moving the two corner molds 18 closer to or further away from each other. For example, the first driving member 21 uses hydraulic cylinders and two sets are symmetrically arranged. The opposite ends of the two sets of hydraulic cylinders are hinged to the support beam 17, and the opposing ends are hinged to the two slides 20. The two sets of hydraulic cylinders extend and retract synchronously, thereby driving the two slides 20 to move laterally closer to or further away from each other.

[0052] In some alternative embodiments: see Figures 1 to 5 As shown, this application embodiment provides a descending bridge construction machine formwork intelligent opening and closing system. The first driving component of the descending bridge construction machine formwork intelligent opening and closing system includes a telescopic rod 22 disposed on the support beam 17 and used for vertically pressing the top plate formwork 19, and a telescopic diagonal brace 23 disposed on the slide 20 and used for supporting the top plate formwork 19. One end of the telescopic diagonal brace 23 is hinged to the slide 20 and the other end is hinged to the top plate formwork 19.

[0053] The first drive assembly of this application embodiment includes a telescopic rod 22 and a telescopic diagonal brace 23. The telescopic rod 22 is arranged vertically, with its top end hinged to the top plate mold 19 and its bottom end hinged to the support beam 17. The telescopic diagonal brace 23 is arranged obliquely, with its top end hinged to the top plate mold 19 and its bottom end hinged to the slide 20.

[0054] For example, both the telescopic rod 22 and the telescopic diagonal brace 23 of this application are hydraulic cylinders. The telescopic diagonal brace 23 is provided in two sets and is arranged symmetrically, with the top end close to the telescopic rod 22 and the bottom end away from the telescopic rod 22. When the telescopic rod 22 and the telescopic diagonal brace 23 retract simultaneously, the top plate mold 19 can be controlled to descend. After the top plate mold 19 descends and disengages from the corner mold 18, the length of the telescopic rod 22 remains unchanged. When the telescopic diagonal braces 23 on both sides retract simultaneously, they can cooperate with the first driving member 21 to drive the two side slides 20 to move closer to each other.

[0055] In some alternative embodiments: see Figures 1 to 5 As shown in the figure, this application embodiment provides a descending bridge construction machine formwork intelligent opening and closing system. The inner mold of the descending bridge construction machine formwork intelligent opening and closing system also includes symmetrically arranged side plate molds 24. The side plate molds 24 are hinged to the slide 20. A second driving member 25 for driving the side plate molds 24 to rotate around the slide 20 is hinged between the slide 20 and the side plate molds 24.

[0056] The inner mold of this application embodiment also includes symmetrically arranged side plate molds 24. The side plate molds 24 are hinged to the slide 20. A second driving member 25 is hinged between the slide 20 and the side plate molds 24. The second driving member 25 is a hydraulic cylinder, which can drive the side plate molds 24 to rotate around the slide 20, so as to realize the automatic opening and closing of the side plate molds 24.

[0057] In some alternative embodiments: see Figures 1 to 5 As shown in the figure, this application embodiment provides a descending bridge construction machine formwork intelligent opening and closing system. The descending bridge construction machine formwork intelligent opening and closing system also includes a lower crossbeam 26 and a lower longitudinal beam 27 fixed on the lower crossbeam 26. A bottom plate formwork 28 that cooperates with the web formwork 2 is fixed on the lower longitudinal beam 27.

[0058] In this embodiment, the lower crossbeam 26 is fixed to the main truss 3 by a lifting device. The lower longitudinal beams 27 are fixedly installed on the top surface of the lower crossbeam 26 at intervals. The bottom plate mold 28 that cooperates with the web mold 2 is fixedly installed on the top surface of the lower longitudinal beams 27.

[0059] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0060] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0061] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A smart opening and closing system for formwork of a descending bridge construction machine, characterized in that, include: The outer mold includes a wing plate mold (1) and a web plate mold (2) that are fixedly connected to each other; The external support adjustment unit includes a main truss (3) located on one side of the web plate mold (2) and a support frame (4) fixedly connected to the wing plate mold (1). The main truss (3) is provided with a lifting member (5) for vertically lifting the support frame (4) and a pushing member (6) for laterally pushing the support frame (4). The support frame (4) is provided with a telescopic support rod (7) for vertically pressing the top surface of the main truss (3).

2. The intelligent opening and closing system for formwork of a down-draft bridge construction machine as described in claim 1, characterized in that: The main truss (3) is provided with a clamping member (8) for laterally clamping the web mold (2), and a clamping block (9) is provided between the clamping end of the clamping member (8) and the web mold (2).

3. The intelligent opening and closing system for formwork of a down-draft bridge construction machine as described in claim 1, characterized in that: The support frame (4) has a steel section (10) located directly above the main truss (3) on one side near the main truss (3). The telescopic support rod (7) includes a support screw (71) threadedly connected to the steel section (10) and a drive mechanism (72) for driving the support screw (71) to rotate so that the support screw (71) moves up and down.

4. The intelligent opening and closing system for formwork of a down-draft bridge construction machine as described in claim 1, characterized in that: The main truss (3) is provided with supports (11) on both sides. The lifting member (5) and the pushing member (6) are respectively fixed on the supports (11) on both sides. The top of the lifting member (5) is provided with a transverse sliding block (12) that is slidably connected to the support frame (4). The support frame (4) is fixed with a guide plate (13). The driving end of the pushing member (6) is provided with a vertical sliding block (14) that is slidably connected to the guide plate (13).

5. The intelligent opening and closing system for formwork of a descending bridge construction machine as described in any one of claims 1 to 4, characterized in that: It also includes an inner mold lifting beam (15) and a lifting rod (16) for fixing the inner mold lifting beam (15). A support beam (17) is provided on the inner mold lifting beam (15). An inner side mold and an inner support adjustment unit for supporting and adjusting the inner side mold are provided on the support beam (17).

6. The intelligent opening and closing system for formwork of a down-draft bridge construction machine as described in claim 5, characterized in that: The inner mold includes symmetrically arranged corner molds (18) and a top plate mold (19) disposed between the two corner molds (18). The inner support adjustment unit includes a first drive component for driving the top plate mold (19) to rise and fall, and a second drive component for driving the two corner molds (18) to move closer or further away from each other.

7. The intelligent opening and closing system for formwork of a down-draft bridge construction machine as described in claim 6, characterized in that: The second drive assembly includes a carriage (20) symmetrically arranged on the support beam (17) and fixedly connected to the corner molds (18) on both sides respectively, and a first drive member (21) symmetrically arranged on the support beam (17) for driving the carriages (20) on both sides to move closer or further apart in the lateral direction.

8. The intelligent opening and closing system for formwork of a down-draft bridge construction machine as described in claim 7, characterized in that: The first drive assembly includes a telescopic rod (22) disposed on the support beam (17) and used to vertically press against the top plate mold (19), and a telescopic diagonal brace (23) disposed on the slide (20) and used to support the top plate mold (19). One end of the telescopic diagonal brace (23) is hinged to the slide (20) and the other end is hinged to the top plate mold (19).

9. The intelligent opening and closing system for formwork of a down-draft bridge construction machine as described in claim 7 or 8, characterized in that: The inner mold also includes symmetrically arranged side plate molds (24), the side plate molds (24) are hinged to the slide (20), and a second driving member (25) is hinged between the slide (20) and the side plate molds (24) for driving the side plate molds (24) to rotate around the slide (20).

10. The intelligent opening and closing system for formwork of a down-draft bridge construction machine as described in claim 1, characterized in that: It also includes a lower crossbeam (26) and a lower longitudinal beam (27) fixed on the lower crossbeam (26), and a bottom plate mold (28) that cooperates with the web mold (2) is fixed on the lower longitudinal beam (27).

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