Mobile safety protection device for bridge outer mold construction and construction method

Abstract

The application relates to a mobile safety protection device and a construction method for bridge outer mold construction. The device comprises linear tracks, lateral hinging mechanisms, vertical lifting support frames and molds. A pair of linear tracks are horizontally spaced and arranged at the lateral two side edges of a beam plate. At least one pair of longitudinal moving mechanisms are arranged longitudinally on each linear track. The vertical lifting support frame comprises a vertical lifting assembly and a support frame. The vertical lifting assembly is arranged on each longitudinal moving mechanism, and the support frame is connected to the vertical lifting assembly. A pair of lateral hinging mechanisms are horizontally spaced and respectively hinged at the lateral two sides of the support frame. At least one pair of lateral hinging mechanisms are arranged along the longitudinal direction of the support frame. A pair of molds are horizontally spaced and respectively connected to the lateral hinging mechanisms. The lateral hinging mechanisms are used for driving the molds to be attached to the edges of the beam plate. The molds can be quickly moved and accurately positioned with the device as a whole, so that the construction efficiency and safety are improved.

Description

Technical Field

[0001] This invention belongs to the field of bridge construction safety protection technology, specifically relating to a mobile safety protection device and construction method for bridge external formwork construction. Background Technology

[0002] In bridge construction, especially in the construction of cast-in-place box girders and T-beams, the installation, dismantling, and movement of external formwork, as well as the safety protection of the construction work platform, are critical procedures. Traditional external formwork construction often uses scaffolding to erect work platforms or simple hanging baskets, which presents the following safety problems: (1) The installation, dismantling and relocation of the outer mold or hanging basket are inefficient and consume a lot of manpower and time.

[0003] (2) The protective facilities and the formwork are poorly correlated and the safety protection level is not high. In particular, workers face greater risks during the adjustment and movement of the formwork. Summary of the Invention

[0004] To address the aforementioned technical problems, the present invention aims to provide a mobile safety protection device and construction method for bridge external formwork construction. The present invention achieves safety protection by automatically moving and flipping the formwork to fit it with the beam slab, which not only has high construction efficiency but also high safety.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A mobile safety protection device for bridge external formwork construction, comprising: A pair of linear tracks, spaced laterally and disposed on both sides of the transverse edge of the beam slab; A longitudinal moving mechanism is provided in the longitudinal direction of each of the linear tracks, with at least one pair of longitudinally spaced longitudinal moving mechanisms, the longitudinal moving mechanisms being used to move along the axial direction of the linear track; A vertical lifting support frame includes a vertical lifting assembly and a support frame. Each of the longitudinal moving mechanisms is provided with the vertical lifting assembly. The support frame is connected to the vertical lifting assembly and is driven to move up and down by the vertical lifting assembly. A lateral hinge mechanism, wherein a pair of the lateral hinge mechanisms are laterally spaced and respectively hinged on both sides of the support frame, and at least one pair of the lateral hinge mechanisms are provided along the longitudinal direction of the support frame. Templates, a pair of templates are laterally spaced and respectively connected to the lateral hinge mechanism, the lateral hinge mechanism being used to drive the templates to fit against the edge of the beam plate.

[0006] Furthermore, the vertical lifting assembly includes a vertical sliding sleeve, a vertical sliding column, and a lifting cylinder. The vertical sliding column is disposed on the longitudinal moving mechanism, the vertical sliding sleeve is nested around the outer periphery of the vertical sliding column, the two ends of the lifting cylinder are respectively connected to the upper part of the vertical sliding column and the support frame, and the vertical sliding sleeve is connected to the lower part of the support frame.

[0007] Furthermore, the support frame includes a gantry and a bottom beam, the bottom beams are respectively connected to the longitudinally spaced vertical sliding sleeves, the gantry is longitudinally spaced and at least one pair is provided, the two transverse ends of the gantry are respectively connected to a pair of bottom beams, and the lateral hinge mechanism is hinged to the transverse sides of the gantry.

[0008] Furthermore, the lateral hinge mechanism includes a horizontal telescopic component, a connecting column, a tilting cylinder, and a movable lever. One end of the horizontal telescopic component is connected to the support frame. One end of the connecting column is slidably connected to the horizontal telescopic component and is used to move along the axial direction of the horizontal telescopic component. The middle part of the movable lever is hinged to the other end of the connecting column. One end of the tilting cylinder is hinged to the connecting column, and the other end is hinged to one end of the movable lever. The other end of the movable lever is connected to the template.

[0009] Furthermore, the horizontal telescopic assembly includes a smoothing bar, a smoothing sleeve, and a positioning cylinder. The smoothing bar is horizontally arranged and one end is connected to the support frame. The smoothing sleeve is slidably sleeved on the outer periphery of the smoothing bar. One end of the connecting column is vertically connected to the smoothing sleeve. The two ends of the positioning cylinder are respectively hinged to the smoothing bar and the smoothing sleeve, and are used to drive the smoothing sleeve to move axially along the smoothing bar.

[0010] Furthermore, guardrails and toe boards are connected to the longitudinally spaced connecting columns, with the toe boards located at the lower end of the guardrails; the template is provided with side formwork baffles for stopping the beams.

[0011] Furthermore, the template is equipped with a pressure sensor for detecting the fit between the template and the beam.

[0012] Furthermore, the longitudinal moving mechanism includes a drive wheel, a wheel frame, and a drive motor. The drive wheel is rotatably mounted inside the wheel frame. The drive motor is mounted on the wheel frame and driven by the drive wheel. The drive wheel is slidably connected to the linear track, and the vertical sliding column is mounted on the wheel frame.

[0013] Furthermore, it also includes a controller, which is electrically connected to the pressure sensor, positioning cylinder, tilting cylinder, lifting cylinder and drive motor.

[0014] This invention also provides a mobile safety protection construction method for bridge external formwork construction, which utilizes the aforementioned mobile safety protection device for bridge external formwork construction. The method includes the following steps: Step S1: Lay straight tracks on both sides of the beam and slab, and install the longitudinal moving mechanism, vertical lifting support frame, lateral hinge mechanism and template on the straight tracks; Step S2: Control the longitudinal moving mechanism to move longitudinally along the straight track to the target construction position; Step S3: Adjust the vertical height of the template by using the vertical lifting support frame so that the template is located on the outer periphery of the beam plate. Drive the template to move horizontally and flip by the lateral hinge mechanism so that the template is close to the beam plate and fits against the edge of the beam plate, thus completing the template positioning. Step S4: Construction is carried out on the positioned template; Step S5: After construction is completed, control the lateral hinge mechanism and the vertical lifting assembly to disengage the formwork from the beam and slab, and then control the longitudinal moving mechanism to move the formwork to the next construction segment along the straight track.

[0015] Because the present invention adopts the above technical solution, it has the following advantages and effects: This invention provides a mobile safety protection device and construction method for bridge external formwork construction. The device integrates a linear track, a longitudinal moving mechanism, a vertical lifting support frame, a lateral hinge mechanism, and the formwork into a complete set of equipment that can automatically move along the beam slab. This allows the formwork to move quickly and be precisely positioned with the entire device, and automatically fits tightly against the edge of the beam slab through lifting and flipping actions. This replaces the tedious process of repeated manual assembly, disassembly, and adjustment, significantly improving construction efficiency. At the same time, because the construction platform and the formwork are rigidly connected as a whole, it provides operators with a stable and continuous protective space throughout the process, eliminating the risk of personnel being in an unprotected high-altitude state when adjusting the formwork in traditional methods. This fundamentally ensures the safety of construction operations and effectively solves the problem of balancing efficiency and safety in bridge external formwork construction. Attached Figure Description

[0016] Figure 1 This is a reference diagram showing the usage state of the device of the present invention.

[0017] Figure 2 for Figure 1 Side view.

[0018] The attached diagram is labeled as follows: 1-Straight track, 2-Drive wheel, 3-Wheel frame, 4-Drive motor, 5-Gantry, 6-Diagonal brace, 7-Bottom beam, 8-Pier, 9-Side beam, 10-Vertical sliding sleeve, 11-Vertical sliding column, 12-Lifting cylinder, 13-Smooth lever, 14-Smooth sleeve, 15-Positioning cylinder, 16-Connecting column, 17-Modular lever, 18-Tilting cylinder, 19-Formwork, 20-Side formwork baffle, 21-Bolt assembly, 22-Guardrail, 23-Toe stop, 24-Pressure sensor, 25-Beam plate, 26-Controller, 27-Construction vehicle. Detailed Implementation

[0019] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings to provide a clearer understanding of the purpose, features, and advantages of the present invention. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but are merely illustrative of the essential spirit of the technical solution of the present invention.

[0020] like Figures 1-2 As shown. This invention provides a mobile safety protection device for bridge external formwork construction, comprising a linear track 1, a longitudinal moving mechanism, a vertical lifting support frame, a lateral hinge mechanism, and a formwork 19. A pair of linear tracks 1 are laid laterally at intervals on both sides of the already poured beam slab 25, serving as the mobile base for the entire device. At least one pair of longitudinally spaced longitudinal moving mechanisms are provided longitudinally along each linear track 1, the longitudinal moving mechanisms being used for axial movement along the linear track 1.

[0021] A vertical lifting support frame is mounted on a longitudinal moving mechanism. The vertical lifting support frame includes a vertical lifting assembly and a support frame. Each longitudinal moving mechanism is equipped with a vertical lifting assembly, and the support frame is connected to and driven by the vertical lifting assembly to move up and down. A pair of lateral hinge mechanisms are laterally spaced and hinged to both sides of the support frame, and at least one pair of lateral hinge mechanisms is provided along the longitudinal direction of the support frame. A pair of templates 19 are laterally spaced and connected to the lateral hinge mechanisms, which drive the templates 19 to fit against the edge of the beam slab 25. The bridge beam slab 25 is longitudinally mounted on piers 8, which are mounted on a foundation. The foundation is fixed to the ground, allowing construction vehicles 27 to travel beneath the device.

[0022] This invention integrates a linear track, a longitudinal moving mechanism, a vertical lifting support frame, a lateral hinge mechanism, and a template 19 into a complete set of equipment that can automatically move along the beam 25, enabling the template 19 to move quickly and be precisely positioned with the whole device, thereby improving construction efficiency and construction safety.

[0023] In this invention, as a preferred embodiment, three lateral hinge mechanisms are arranged longitudinally at intervals on both sides of the support frame.

[0024] Furthermore, the longitudinal movement mechanism includes drive wheels 2, wheel frames 3, and drive motor 4. A pair of drive wheels 2 are longitudinally spaced and rotatably mounted in the wheel frame 3 via a pivot. The lower end of the vertical lifting component of the vertical lifting support frame is mounted on the wheel frame 3. The drive motor 4 is mounted on the outer periphery of the wheel frame 3, and its output shaft is driven by the drive wheels 2. The drive motor 4 drives the drive wheels 2 to roll on the linear track 1, thereby realizing the automatic movement of the longitudinal movement mechanism, the vertical lifting support frame, the lateral hinge mechanism, and the template 19 along the longitudinal direction of the beam plate 25.

[0025] As a preferred option, the linear track 1 is an I-beam, and the drive wheel 2 is a grooved wheel, which is embedded in the I-beam.

[0026] Furthermore, the vertical lifting assembly includes a vertical sliding sleeve 10, a vertical sliding column 11, and a lifting cylinder 12. The lower end of the vertical sliding column 11 is fixedly mounted on the wheel frame 3 of the longitudinal moving mechanism. The vertical sliding sleeve 10 is nested around the outer periphery of the vertical sliding column 11. The lower telescopic end of the lifting cylinder 12 is connected to the upper end of the vertical sliding column 11, and the upper fixed end of the lifting cylinder 12 is hinged to the middle or upper part of the support frame. The lifting cylinder 12 drives the support frame to rise and fall in opposite directions by extending and retracting vertically.

[0027] Furthermore, the support frame includes a bottom beam 7 and a gantry 5. The bottom beam 7 is arranged longitudinally, and its two ends are respectively fixedly connected to vertical sliding sleeves 10 on two longitudinal moving mechanisms located in the same transverse direction. The gantry 5 is arranged with at least one pair of bottom beams 7 at longitudinal intervals, and its two transverse ends are respectively connected to a pair of bottom beams 7. The lateral hinge mechanism is hinged to the transverse sides of the gantry 5.

[0028] Specifically, the gantry 5 is a gantry frame structure, with its two lower legs fixedly connected to two bottom beams 7. The height of the gantry 5 is higher than the height of the construction vehicle 27 on the beam 25. The outer perimeter of the gantry 5 is longitudinally connected by side beams 9, and diagonal braces 6 are also provided on the transverse sides of the gantry 5, with the two ends of the diagonal braces 6 connected to the upper and lower ends of the gantry 5 respectively. When the lifting cylinder 12 extends or retracts, it receives reverse force through the vertical sliding column 11, and relies on the sliding guide between the vertical sliding sleeve 10 and the vertical sliding column 11 to drive the entire support frame to move smoothly up and down.

[0029] Furthermore, on both sides of the gantry 5, at least one pair of lateral hinge mechanisms corresponding to the gantry 5 are provided longitudinally. The lateral hinge mechanism includes a horizontal telescopic assembly, a connecting column 16, a tilting cylinder 18, and a movable lever 17. One end of the horizontal telescopic assembly is connected to the support frame, one end of the connecting column 16 is slidably connected to the outer periphery of the horizontal telescopic assembly and is used to move axially along the horizontal telescopic assembly, the middle of the movable lever 17 is hinged to the other end of the connecting column 16, one end of the tilting cylinder 18 is hinged to the connecting column 16, and the other end is hinged to one end of the movable lever 17. The other end of the movable lever 17 is connected to the template 19.

[0030] Specifically, the upper end of the connecting column 16 is vertically fixed to the smooth sleeve 14, the middle part of the movable lever 17 is hinged to the lower end of the connecting column 16 by a pin, the fixed end of the tilting cylinder 18 is hinged to the connecting column 16, and the telescopic end is hinged to the outer end of the movable lever 17. The template 19 is fixedly connected to the other end of the movable lever 17 away from the connecting column 16. Driven by the positioning cylinder 15, the horizontal position of the template 19 can be adjusted. Driven by the tilting cylinder 18, the movable lever 17 can drive the template 19 to rotate around the hinge axis at the lower end of the connecting column 16, thereby adjusting the tilt angle of the template 19 so that the template 19 fits against the beam 25.

[0031] Furthermore, the horizontal telescopic assembly includes a smoothing bar 13, a smoothing sleeve 14, and a positioning cylinder 15. The smoothing bar 13 is horizontally arranged and one end is connected to the support frame. The smoothing sleeve 14 is slidably sleeved on the outer periphery of the smoothing bar 13. One end of the connecting column 16 is vertically connected to the smoothing sleeve 14. The two ends of the positioning cylinder 15 are respectively hinged to the smoothing bar 13 and the smoothing sleeve 14.

[0032] Specifically, one end of the smoothing bar 13 is horizontally welded to the lower support leg of the gantry 5, the fixed end of the positioning cylinder 15 is hinged to the outer periphery of the smoothing bar 13 near the gantry 5, and the telescopic end is hinged to the outer periphery of the smoothing sleeve 14. The positioning cylinder 15 is used to drive the smoothing sleeve 14 to slide axially along the smoothing bar 13.

[0033] Furthermore, a guardrail 22 and a toe board 23 located below the guardrail 22 are fixedly connected between two longitudinally spaced connecting columns 16. The guardrail 22, toe board 23, and formwork 19 together form a continuous side safety protection platform. A side formwork baffle 20 is also fixedly installed in the middle of the inner side of the formwork 19. The side formwork baffle 20 is used to resist the upper flange or top edge of the beam slab 25 during concrete pouring.

[0034] Furthermore, a pressure sensor 24 is installed on the inner edge of the template 19. The pressure sensor 24 is used to detect the fit between the template 19 and the beam 25. When the pressure sensor 24 detects that the fit force meets the requirements, it indicates that the template 19 and the beam 25 are sealed and fitted. At this time, the pressure sensor 24 outputs a control signal to control the tilting cylinder 18 to stop operating.

[0035] Furthermore, to secure the template 19, bolt assemblies 21 are longitudinally spaced along the side of the template 19 closest to the beam slab 25. The template 19 can be fixed to the beam slab 25 using the bolt assemblies 21. During fixing, the bolt assemblies 21 penetrate the beam slab 25 and the template 19, connecting the two.

[0036] Furthermore, the device also includes a controller 26, which is mounted on the support frame and is a PLC controller. The controller 26 is electrically connected to the drive motor 4, lifting cylinder 12, positioning cylinder 15, tilting cylinder 18, and pressure sensor 24. The controller 26 receives feedback control signals from the pressure sensor 24 to control the movement of the tilting cylinder 18. Simultaneously, the controller 26 can control the orderly movement of each component through a program and issue commands according to a preset program to coordinate the automated operation of the entire device.

[0037] As a preferred embodiment, the lifting cylinder 12, the positioning cylinder 15, and the tilting cylinder 18 can all be hydraulic cylinders or electric push rods.

[0038] This invention also provides a mobile safety protection construction method for bridge external formwork construction. The specific steps of this method, using the mobile safety protection device for bridge external formwork construction of this invention, are as follows: Step S1: Lay straight tracks 1 on both sides of the transverse edge of the beam 25. Install a longitudinal moving mechanism, a vertical lifting support frame, a lateral hinge mechanism, and a template 19 on the straight tracks 1. During installation, ensure that the drive wheel 2 of the longitudinal moving mechanism is engaged with the corresponding straight track 1.

[0039] In step S2, the controller 26 controls the start of the drive motor 4 of the longitudinal moving mechanism, which drives the drive wheel 2 to move axially along the straight track 1, so that the template 19 moves along the straight track 1 to the target construction position.

[0040] Step S3: Adjust the vertical height of template 19 by using the vertical lifting support frame so that template 19 is located on the outer periphery of beam 25. Drive template 19 to move horizontally and flip by the lateral hinge mechanism so that template 19 is close to beam 25 and fits against the edge of beam 25, thus completing the positioning of template 19.

[0041] Specifically, the controller 26 controls the lifting cylinder 12 of the vertical lifting assembly to drive the support frame and the lateral hinge mechanism to raise the template 19 as a whole, adjust its vertical height to the target position, and then controls the positioning cylinder 15 of the lateral hinge mechanism to push the smooth sleeve 14 to move horizontally outward along the smooth bar 13, thereby moving the connecting column 16 and the template 19 horizontally to both sides of the template 19. Then, the controller 26 controls the lifting cylinder 12 to drive the support frame and the lateral hinge mechanism to lower the template 19 as a whole, so that the template 19 is basically level with the beam 25. Then, the positioning cylinder 15 is controlled to retract, causing the smooth sleeve 14 to move horizontally inward along the smooth rod 13, so that the template 19 initially approaches the side of the beam slab 25. The flipping cylinder 18 is controlled to move, driving the movable rod 17 to rotate around its hinge point with the connecting column 16, thereby causing the template 19 to flip, so as to adjust the tilt angle of the template 19 until the inner side of the template 19 is roughly parallel and in contact with the design contour surface of the beam slab 25. The pressure sensor 24 on the template 19 detects the contact force between the template 19 and the surface of the beam slab 25 in real time and feeds the control signal back to the controller 26. The controller 26 controls the flipping cylinder 18 to achieve precise adjustment of the posture of the template 19 until the template 19 is completely and tightly in contact with the beam slab 25, thus completing the positioning of the template 19.

[0042] In step S4, after the template 19 is positioned, the enclosed or semi-enclosed platform formed by the gantry 5, guardrail 22, toe board 23 and bottom beam 7 provides a safe working space for construction personnel. Safe construction can be carried out within the positioned template 19, such as rebar tying and concrete pouring.

[0043] Step S5: After construction is completed, the controller 26 controls the lateral hinge mechanism and vertical lifting assembly to separate the formwork 19 from the beam 25. Then, the longitudinal moving mechanism is controlled to move the formwork 19 axially along the straight track 1 to the next construction segment.

[0044] Specifically, controller 26 first controls the tilting cylinder 18 to retract, causing the top of the formwork 19 to detach from the beam slab 25. Then, controller 26 controls the positioning cylinder 15 to extend outward, causing the formwork 19 to move horizontally outward, completing the demolding. Next, controller 26 controls the drive motor 4 to drive the drive wheel 2 along the straight track 1 to move the formwork 19 to the next construction segment of the beam slab 25, continuing the cyclical construction.

Claims

1. A mobile safety protection device for bridge external formwork construction, characterized in that, include: A pair of linear tracks (1) are laterally spaced and disposed on the lateral sides of the beam plate (25); A longitudinal moving mechanism is provided in the longitudinal direction of each of the linear tracks (1), with at least one pair of longitudinally spaced longitudinal moving mechanisms, which are used to move along the axial direction of the linear track (1); A vertical lifting support frame includes a vertical lifting assembly and a support frame. Each of the longitudinal moving mechanisms is provided with the vertical lifting assembly. The support frame is connected to the vertical lifting assembly and is driven to move up and down by the vertical lifting assembly. A lateral hinge mechanism, wherein a pair of the lateral hinge mechanisms are laterally spaced and respectively hinged on both sides of the support frame, and at least one pair of the lateral hinge mechanisms are provided along the longitudinal direction of the support frame. Template (19), a pair of templates (19) are laterally spaced and respectively connected to the lateral hinge mechanism, the lateral hinge mechanism being used to drive the template (19) to fit against the edge of the beam plate (25).

2. The mobile safety protection device for bridge external formwork construction according to claim 1, characterized in that, The vertical lifting assembly includes a vertical sliding sleeve (10), a vertical sliding column (11), and a lifting cylinder (12). The vertical sliding column (11) is disposed on the longitudinal moving mechanism. The vertical sliding sleeve (10) is nested around the outer periphery of the vertical sliding column (11). The two ends of the lifting cylinder (12) are respectively connected to the upper part of the vertical sliding column (11) and the support frame. The vertical sliding sleeve (10) is connected to the lower part of the support frame.

3. The mobile safety protection device for bridge external formwork construction according to claim 2 or 3, characterized in that, The support frame includes a gantry (5) and a bottom beam (7). The bottom beam (7) is connected to the vertical sliding sleeve (10) that is spaced longitudinally. The gantry (5) is spaced longitudinally and at least one pair is provided. The two ends of the gantry (5) are connected to a pair of bottom beams (7). The lateral hinge mechanism is hinged to the two sides of the gantry (5).

4. The mobile safety protection device for bridge external formwork construction according to claim 3, characterized in that, The lateral hinge mechanism includes a horizontal telescopic assembly, a connecting column (16), a tilting cylinder (18), and a movable lever (17). One end of the horizontal telescopic assembly is connected to the support frame. One end of the connecting column (16) is slidably connected to the horizontal telescopic assembly and is used to move along the axial direction of the horizontal telescopic assembly. The middle part of the movable lever (17) is hinged to the other end of the connecting column (16). One end of the tilting cylinder (18) is hinged to the connecting column (16), and the other end is hinged to one end of the movable lever (17). The other end of the movable lever (17) is connected to the template (19).

5. The mobile safety protection device for bridge external formwork construction according to claim 4, characterized in that, The horizontal telescopic assembly includes a smooth bar (13), a smooth sleeve (14), and a positioning cylinder (15). The smooth bar (13) is horizontally arranged and one end is connected to the support frame. The smooth sleeve (14) is slidably sleeved on the outer periphery of the smooth bar (13). One end of the connecting column (16) is vertically connected to the smooth sleeve (14). The two ends of the positioning cylinder (15) are respectively hinged to the smooth bar (13) and the smooth sleeve (14), and are used to drive the smooth sleeve (14) to move axially along the smooth bar (13).

6. The mobile safety protection device for bridge external formwork construction according to claim 5, characterized in that, The longitudinally spaced connecting columns (16) are connected to guardrails (22) and toe boards (23), with the toe boards (23) located at the lower end of the guardrails (22); the template (19) is provided with side formwork baffles (20) for stopping the beams (25).

7. The mobile safety protection device for bridge external formwork construction according to claim 6, characterized in that, The template (19) is equipped with a pressure sensor (24) for detecting the fit between the template (19) and the beam (25).

8. The mobile safety protection device for bridge external formwork construction according to claim 7, characterized in that, The longitudinal moving mechanism includes a drive wheel (2), a wheel frame (3) and a drive motor (4). The drive wheel (2) is rotatably mounted in the wheel frame (3). The drive motor (4) is mounted on the wheel frame (3) and driven by the drive wheel (2). The drive wheel (2) is slidably connected to the linear track (1). The vertical sliding column (11) is mounted on the wheel frame (3).

9. The mobile safety protection device for bridge external formwork construction according to claim 8, characterized in that, It also includes a controller (26), which is electrically connected to the pressure sensor (24), positioning cylinder (15), tilting cylinder (18), lifting cylinder (12) and drive motor (4).

10. A mobile safety protection construction method for bridge external formwork construction, employing the mobile safety protection device for bridge external formwork construction as described in any one of claims 1-9, characterized in that, The method includes the following steps: Step S1: Lay straight tracks (1) on both sides of the beam (25) and install the longitudinal moving mechanism, vertical lifting support frame, lateral hinge mechanism and template (19) on the straight tracks (1). Step S2: Control the longitudinal moving mechanism to move longitudinally along the straight track (1) to the target construction position; Step S3: Adjust the vertical height of the template (19) by using the vertical lifting support frame so that the template (19) is located on the outer periphery of the beam plate (25). Drive the template (19) to move horizontally and flip by the lateral hinge mechanism so that the template (19) is close to the beam plate (25) and fits against the edge of the beam plate (25), thus completing the positioning of the template (19). Step S4: Construction is carried out on the positioned template (19); Step S5: After construction is completed, control the lateral hinge mechanism and the vertical lifting assembly to disengage the template (19) from the beam (25), and then control the longitudinal moving mechanism to move the template (19) along the straight track (1) to the next construction segment.

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