Anti-collision guardrail construction safety protection device and construction method

Abstract

The invention relates to the technical field of bridge construction, in particular to an anti-collision guardrail construction safety protection device and a construction method.The anti-collision guardrail construction safety protection device comprises an outer mold overhanging device, a safety belt hanging device, an inner mold template fastening device, a concrete pouring anti-falling device and a construction trolley and further comprises an operation platform. Potential safety hazards in the construction process can be effectively solved, the construction efficiency is improved, including but not limited to reduction of construction accidents, guarantee of life safety of constructors, shortening of the construction period, reduction of the construction cost, promotion of safe and efficient development of the bridge construction industry and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge construction, and in particular to a safety protection device for anti-collision guardrail construction and a construction method. Background Art

[0002] The traditional construction process of bridge concrete anti-collision guardrails often adopts the cast-in-place method, that is, the bridge deck is tied with steel bars, and the guardrail is cast after the formwork is erected. The formwork includes the inner formwork and the outer formwork of the anti-collision guardrail. This process not only has a long construction period and low efficiency, but also has many safety hazards when working at high altitude and near the edge. For example, accidents such as people falling and objects being hit are prone to occur during the installation and removal of the formwork and the pouring of concrete. At the same time, environmental pollution and noise pollution are also relatively serious.

[0003] Existing fully precast concrete crash barriers and construction methods use precast concrete crash barrier segments with connecting devices installed at the bottom to connect to the bridge deck top plate. Adjacent segments are spliced ​​together using tongue-and-groove joints and filled with hinged joint mortar. Although this improves installation efficiency and reduces on-site construction processes and time, it mainly focuses on the prefabrication of crash barriers and covers fewer safety precautions during the construction of cast-in-place concrete crash barriers. Furthermore, the splicing and grouting process of precast segments may pose safety hazards when working at height, and it also fails to solve the problem of preventing falls during concrete pouring. Therefore, existing bridge concrete crash barrier construction technology still has many shortcomings in terms of safety protection and construction efficiency. Summary of the Invention

[0004] In response to the defects in the existing technology, the present invention provides a safety protection device and construction method for anti-collision guardrail construction, which can effectively solve the safety hazards in the construction process and improve construction efficiency, including but not limited to reducing the occurrence of construction accidents, protecting the lives of construction workers, shortening the construction period, reducing construction costs, and promoting the safe and efficient development of the bridge construction industry.

[0005] In order to solve the above technical problems, the present invention is solved by the following technical solutions:

[0006] A safety protection device for anti-collision guardrail construction, comprising an outer mold cantilever device, a safety belt hanging device, an inner mold template fastening device, a concrete pouring anti-fall device and a construction trolley;

[0007] The outer formwork cantilever device includes a cantilever support assembly, which includes a vertical rod fixed to the inner formwork of the anti-collision guardrail, a horizontal rod with a slot, and a connector that anchors the outer formwork of the anti-collision guardrail through a hook structure; the safety belt suspension device includes a vertical rod, a clamp and a safety rope, and the vertical rod is fixed to the outer formwork of the anti-collision guardrail; the inner formwork fastening device is provided with threaded sleeves at both ends, connected to the inner formwork of the anti-collision guardrail through a first connecting steel plate, and fixed to the bridge deck through a second connecting steel plate; the concrete pouring anti-drop device includes a first baffle, a second baffle and two side baffles, which form a concrete diversion cavity;

[0008] It also includes a working platform, which includes a truss arranged parallel to the upper end surface of the anti-collision guardrail, an inner climbing frame and an outer climbing frame are provided at the lower end surface of the truss, and a working platform is provided at the lower end of the outer climbing frame.

[0009] Through the present invention, the outer mold of the anti-collision guardrail is cantilevered through the inner mold of the anti-collision guardrail to achieve self-balancing. The installation of the inner mold of the anti-collision guardrail can be quickly adjusted and tightened through the inner mold template fastening device. The quickly installed safety belt hanging device makes the safety belt hanging points safe and reliable. The concrete pouring anti-drop device can effectively reduce concrete overflow and ensure safety below. The working platform provides a reliable platform for concrete surface renovation.

[0010] Preferably, the cantilever support assembly includes a support frame consisting of vertical bars and horizontal bars, the vertical bars are vertically arranged and fixedly connected to the vertical back ribs of the inner mold of the anti-collision guardrail, the horizontal bars are horizontally arranged at the upper ends of the vertical bars, and the end of the horizontal bars away from the vertical bars is provided with a slot passing through the upper and lower surfaces of the horizontal bars; an anchor plate assembly, which includes an anchor plate fixed to the top surface of the outer mold of the anti-collision guardrail, and a guide hole is provided on the anchor plate; a force transmission locking assembly, which includes an L-shaped connecting piece, wherein the lower end of the connecting piece is provided with a hook structure, the hook structure is plugged into the guide hole, and the upper end of the connecting piece extends into the slot and forms an adjustable connection with the horizontal bar.

[0011] Through the present invention, during the construction process, the cantilever support assembly is fixedly connected to the vertical back rib of the inner mold of the anti-collision guardrail and the anchor plate assembly is fixedly connected to the top surface of the outer mold of the anti-collision guardrail. At the same time, the force transmission locking assembly connects the cantilever support assembly and the anchor plate assembly to provide suspension for the outer mold of the anti-collision guardrail, effectively preventing the outer mold of the anti-collision guardrail from falling due to the weight of the formwork, the concrete in the formwork and the load generated by the vibration process; the adjustable matching design of the notch on the cross bar and the upper end of the connecting part allows the height and position of the connecting part to be flexibly adjusted according to actual construction needs, and it has strong adaptability; the guide hole on the anchor plate provides precise positioning for the hook structure, avoids misalignment problems during installation, and improves construction efficiency; the structural design of the device body is relatively streamlined, with fewer redundant components, which reduces material waste, while reducing the overall weight and reducing the risk of high-altitude installation and construction.

[0012] Preferably, the vertical pole is arranged vertically and connected to the anti-collision guardrail on the outer mold of the anti-collision guardrail. A clamp is provided at the upper end of the vertical pole, and a connecting hole is provided on the side of the clamp close to the inner mold of the anti-collision guardrail. The connecting hole is used to connect the safety rope; a base is provided at the lower end of the vertical pole, and the lower end of the base is fixedly connected to the outside of the anti-collision guardrail.

[0013] Through the present invention, the upright pole itself is connected to the anti-collision guardrail, and a base is provided at the lower end of the upright pole. The fixed connection between the base and the anti-collision guardrail further strengthens the connection stability between the upright pole itself and the anti-collision guardrail, ensuring the safety of workers during the construction process.

[0014] Preferably, threaded sleeves are symmetrically welded at both ends of the inner mold template fastening device; the connecting device includes a first connecting steel plate, a first slot is provided at one end of the first connecting steel plate, and a first high-strength screw is welded at the first slot; the fixing device includes a second connecting steel plate, a second slot is provided at one end of the second connecting steel plate, and a second high-strength screw is welded at the second slot, wherein the inner mold template fastening device is rotatable and the threaded sleeves at both ends of the inner mold template fastening device form threaded cooperation with the first high-strength screw and the second high-strength screw respectively, forming a support structure with a telescopically adjustable length.

[0015] Through the present invention, the threaded sleeves symmetrically welded at both ends of the device body are matched with the screw through threads to achieve length adjustment. This design can flexibly adapt to guardrail inner molds of different sizes, significantly improving construction efficiency. At the same time, its own length can be adjusted for installation according to the complex environment on site; the first high-strength screw and the second high-strength screw are combined with the precise matching of the threaded sleeve to provide excellent tensile and shear resistance, effectively resisting lateral pressure during concrete pouring.

[0016] Preferably, the two side baffles are arranged relatively parallel to each other, and the first sides of the two side baffles are respectively connected to the two parallel sides of the first baffle, and the second sides of the two side baffles are respectively connected to the two parallel sides of the second baffle; the top height of the side baffles at the connection with the first baffle and the second baffle is respectively the same as the top height of the first baffle and the second baffle; the first baffle is arranged near the inner mold of the anti-collision guardrail, and the second baffle is arranged near the outer mold of the anti-collision guardrail, the bottoms of the first baffle and the second baffle are flush, and the vertical height of the first baffle is lower than that of the second baffle.

[0017] Through the present invention, a concrete diversion chamber is formed by the first baffle, the second baffle and the two side baffles to guide the flow direction of concrete and prevent concrete from spilling during the pouring process, thereby reducing material waste, improving construction efficiency and avoiding safety hazards; the vertical height of the first baffle placed near the inner side of the anti-collision guardrail template is designed to be lower than the vertical height of the second baffle placed near the outer side of the square brick guardrail template, the surface of the side baffle is the body shape, and the upper end of the entire device is designed to be a downward inclined surface, which is convenient for construction workers to operate and can reduce the probability of concrete spilling to the outside of the anti-collision guardrail template during pouring.

[0018] Preferably, two through holes of equal horizontal height are provided at the lower middle portion of the first baffle, and two through holes of equal horizontal height are provided at the lower middle portion of the second baffle. The through holes on the first baffle and the through holes on the second baffle form two pairs of opposite through holes, and a rotating shaft passing through the first baffle and the second baffle is provided in each pair of through holes, and rolling elements are provided at both ends of the rotating shaft.

[0019] Through the present invention, a roller is formed by a rotating shaft and a rolling member, and the rolling member contacts the flat steel plate on the top of the anti-collision guardrail template, so that the entire device can move smoothly on the top of the anti-collision guardrail template, making it convenient for construction workers to adjust the overall position of the device according to casting requirements.

[0020] Preferably, the bottom of the first baffle and the bottom of the second baffle extend out of the bottom of the side baffle respectively, and the extended parts form a pair of limiting plates, and the bottom surfaces of the limiting plates are lower than the horizontal plane where the lowest point of the rolling element is located.

[0021] Through the present invention, when the device is placed on the anti-collision guardrail template, the rolling part contacts the flat steel plate on the top of the anti-collision guardrail template, and the bottom surface of the limiting plate is lower than the lowest point horizontal plane of the rolling part, thereby improving the limiting effect of the limiting plate and ensuring the stability of the device during movement.

[0022] Preferably, the working platform includes a truss arranged along the width direction of the anti-collision guardrail and parallel to the end surface of the anti-collision guardrail; an inner climbing frame and an outer climbing frame are provided at the lower end surface of the truss, and the inner climbing frame and the outer climbing frame are respectively close to the inner side and the outer side of the anti-collision guardrail; a working platform is provided at the lower end of the outer climbing frame;

[0023] A handrail is provided at the upper end surface of the truss along the length of the truss. The handrail is used for construction workers to grab when transferring from the inner climbing frame to the outer climbing frame.

[0024] By using the handrail in the present invention, construction workers can grab the handrail for support when transferring from the inner climbing frame to the outer climbing frame, so that construction workers can stabilize their emotions and improve their sense of security under psychological pressure, while ensuring safety during transfer and preventing falls; when construction workers are working, they can climb from the lower end of the inner climbing frame to the upper end, and when they are close to the upper end, they can grab the curved rod of the handrail, and when they move to different positions, they can grab the curved rod at different heights; when workers transfer from the upper end of the inner climbing frame to the upper end of the outer climbing frame, they can hold the handrail throughout the entire transfer process, and even when looking at the sky outside the bridge, they will realize that holding the handrail can avoid falling, reducing the possibility of falling themselves, which greatly improves the sense of security of workers, reduces panic, shaking and the like caused by the psychological pressure of fear, maintains stable movement and ensures construction efficiency and safety.

[0025] Preferably, the truss includes two long rods spaced apart along the length of the anti-collision guardrail; one end of the two long rods is commonly connected to a short rod; the handrail includes a bent rod; the bent rod is bent and connected to the long rod; the two ends of the bent rod are respectively connected to the two ends of the long rod, and together form a triangle.

[0026] The triangular arrangement of the bent rod and the long rod in the present invention makes the handrail frame more stable, thereby increasing the safety of personnel during transfer. At the same time, the closer the bent rod part is to the two ends, the lower the height is. This enables construction personnel to grasp the bent rod at different heights when moving up and down the inner climbing frame and the outer climbing frame, making movement more convenient. Among them, the inner climbing frame and the outer climbing frame are both common ladder structures, composed of transverse and longitudinal rods. The length of the outer climbing frame is greater than that of the inner climbing frame. In this embodiment, the inner climbing frame has four transverse rods, i.e., four steps, and the outer climbing frame has 4-10 transverse rods, i.e., 4-10 steps. For example, when climbing the inner climbing frame, when standing on the first step at the bottom of the inner climbing frame, the user can grasp the lowest point of the bent rod. The higher the climbing step is, the user can grasp the highest position of the bent rod. When climbing to the highest position of the inner climbing frame, the user can still grasp the corresponding position of the handrail frame when bending, squatting, changing direction, or other movements to move to the outer climbing frame. Similarly, the user can grasp the corresponding position of the handrail frame when moving from the highest position of the outer climbing frame to the working platform.

[0027] The present invention also provides a method for constructing an anti-collision guardrail, which uses the above-mentioned anti-collision guardrail construction safety protection device and comprises:

[0028] Step 1: Fix the vertical rod of the outer mold cantilever device to the vertical back rib of the inner mold of the anti-collision guardrail, anchor the outer mold of the anti-collision guardrail with the hook structure, and fix the safety belt hanging device to the outer mold of the anti-collision guardrail;

[0029] Step 2: hoist the inner mold and outer mold of the anti-collision guardrail separately, and then use the tension bolts and outer mold cantilever device to temporarily fix the inner mold and outer mold of the anti-collision guardrail;

[0030] Step 3: Install the inner mold template fastening device at the vertical back rib of the inner mold of the anti-collision guardrail, and adjust the telescopic length of the first high-strength screw and the second high-strength screw to fasten the inner mold of the anti-collision guardrail and the outer mold of the anti-collision guardrail;

[0031] Step 4: Push the concrete anti-drop device to the top of the anti-collision guardrail formwork composed of the anti-collision guardrail inner formwork and the anti-collision guardrail outer formwork to pour concrete. When pouring concrete, place the pump pipe in the concrete diversion cavity;

[0032] Step 5: After the concrete pouring is completed, the concrete anti-fall device is removed. After the concrete strength reaches the standard, the anti-collision guardrail template is removed, and then the working platform is installed. The working platform is used for workers to climb onto the working platform through the inner climbing frame for repairs. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is an overall schematic diagram of an anti-collision guardrail construction safety protection device in this embodiment.

[0034] Figure 2 This is a schematic diagram of the working platform of an anti-collision guardrail construction safety protection device in this embodiment.

[0035] Figure 3 Schematic diagram of the anti-collision guardrail template in this embodiment.

[0036] Figure 4 Schematic diagram of the outer mold cantilever device of the bridge anti-collision guardrail in this embodiment.

[0037] Figure 5 This is a top view schematic diagram of the bridge anti-collision guardrail outer mold cantilever device in this embodiment.

[0038] Figure 6 Schematic diagram of the anchor plate of the outer mold cantilever device in this embodiment.

[0039] Figure 7 Schematic diagram of the force transmission and locking assembly of the outer mold cantilever device in this embodiment.

[0040] Figure 8 This is an overall schematic diagram of the safety belt suspension device for anti-collision guardrail construction in this embodiment.

[0041] Figure 9 It is a front view of the clamp of the construction safety belt suspension device in this embodiment.

[0042] Figure 10 This is a top view of the clamp of the construction safety belt suspension device in this embodiment.

[0043] Figure 11 This is a schematic diagram of the base of the construction safety belt suspension device in this embodiment.

[0044] Figure 12 Schematic diagram of the anti-collision guardrail inner mold template fastening device in this embodiment.

[0045] Figure 13 This is a schematic diagram of the connection device of the inner mold template fastening device in this embodiment.

[0046] Figure 14 Schematic diagram of the fixing device of the inner mold template fastening device in this embodiment.

[0047] Figure 15 This is a front view schematic diagram of the anti-collision guardrail inner mold template fastening device in this embodiment.

[0048] Figure 16 It is a side view schematic diagram of the anti-collision guardrail inner mold template fastening device in this embodiment.

[0049] Figure 17 This is a front view of the anti-fall device for pouring concrete for the anti-collision guardrail in this embodiment.

[0050] Figure 18 This is a side view of the anti-fall device for pouring concrete for the anti-collision guardrail in this embodiment.

[0051] Figure 19 A top view of the anti-fall device for pouring concrete for the anti-collision guardrail in this embodiment

[0052] Figure 20 Schematic diagram of the use of the concrete pouring anti-falling device in this embodiment.

[0053] Figure 21 It is a front view of the working platform in this embodiment.

[0054] Figure 22 It is a right view of the working platform in this embodiment.

[0055] Figure 23 It is a left view of the working platform in this embodiment.

[0056] Figure 24 2 is a top view of the working platform in this embodiment.

[0057] Figure 25 Schematic diagram of the handrail frame of the working platform in this embodiment.

[0058] Figure 26 Schematic diagram of the truss of the working platform in this embodiment.

[0059] Figure 27 Schematic diagram of the stabilizing frame of the working platform in this embodiment.

[0060] Figure 28 Schematic diagram of the working platform of the working platform in this embodiment. DETAILED DESCRIPTION

[0061] In order to further understand the content of the present invention, the present invention is described in detail with reference to the embodiments. It should be understood that the embodiments are merely for explanation of the present invention and are not intended to limit the present invention.

[0062] like Figure 1-3 As shown, this embodiment provides a safety protection device for anti-collision guardrail construction, which includes: an outer mold cantilever device 1000, a safety belt hanging device 2000, an inner mold template fastening device 3000, a concrete pouring anti-fall device 4000 and a construction trolley 6000;

[0063] The outer mold cantilever device 1000 includes a cantilever support assembly 1110, which includes a vertical rod 1111 fixed to the inner mold 1 of the anti-collision guardrail, a horizontal rod 1112 with a notch 1210, and a connecting piece 1151 anchoring the outer mold 2 of the anti-collision guardrail through a hook structure 1410; the safety belt hanging device 2000 includes a vertical rod 2120, a hoop 2140 and a safety rope 2150, and the vertical rod 2120 is fixed to the outer mold 2 of the anti-collision guardrail; the inner mold The formwork fastening device 3000 is provided with threaded sleeves 3120 at both ends, connected to the inner formwork 1 of the anti-collision guardrail via a first connecting steel plate 3210, and fixed to the bridge deck 3180 via a second connecting steel plate 3310. The concrete pouring anti-drop device 4000 includes a first baffle 4110, a second baffle 4120, and two side baffles 4130, which enclose a concrete diversion cavity.

[0064] It also includes a working platform 5000, which includes a truss 5110 arranged parallel to the upper end surface of the anti-collision guardrail, an inner climbing frame 5120 and an outer climbing frame 5130 are provided at the lower end surface of the truss 5110, and a working platform 5140 is provided at the lower end of the outer climbing frame 5130.

[0065] Through this embodiment, the outer mold 2 of the anti-collision guardrail is cantilevered through the inner mold 1 of the anti-collision guardrail to achieve self-balancing. The inner mold 1 of the anti-collision guardrail is installed through the inner mold template fastening device 3000 to achieve rapid adjustment and tightening. The quickly installed safety belt hanging device 2000 makes the safety belt hanging points safe and reliable. The concrete pouring anti-drop device 4000 can effectively reduce concrete overflow and ensure safety below. The working platform 5000 provides a reliable platform for concrete surface renovation.

[0066] like Figure 4-7As shown, this embodiment provides a bridge anti-collision guardrail outer mold cantilever device 1000, which includes a device body, the device body includes: a cantilever support assembly 1110, which includes a support frame 1113 composed of a vertical rod 1111 and a horizontal rod 1112, the vertical rod 1111 is vertically arranged and fixedly connected to the vertical back rib 11 of the anti-collision guardrail inner mold 1, the horizontal rod 1112 is horizontally arranged at the upper end of the vertical rod 1111, and the end of the horizontal rod 1112 away from the vertical rod 1111 is provided with a through-hole on the upper and lower surfaces of the horizontal rod 1112 The notch 1210; the anchor plate assembly 1130, which includes an anchor plate 1131 fixed to the top surface of the anti-collision guardrail outer mold 1140, and a guide hole 1310 is provided on the anchor plate 1131; the force transmission locking assembly 1150, which includes an L-shaped connector 1151, wherein the lower end of the connector 1151 is provided with a hook structure 1410, the hook structure 1410 is plugged into the guide hole 1310, and the upper end of the connector 1151 extends into the notch 1210 and forms an adjustable connection with the cross bar 1112.

[0067] Through this embodiment, during the construction process, the cantilever support assembly 1110 is fixedly connected to the vertical back rib 11 of the inner mold 1 of the anti-collision guardrail, and the anchor plate assembly 1130 is fixedly connected to the top surface of the outer mold 1140 of the anti-collision guardrail. At the same time, the force transmission locking assembly 1150 connects the cantilever support assembly 1110 and the anchor plate assembly 1130, providing suspension for the outer mold 1140 of the anti-collision guardrail, effectively preventing the outer mold 1140 of the anti-collision guardrail from falling due to the deadweight of the template, the concrete in the mold and the load generated by the vibration process; the cross bar 1 The adjustable matching design of the slot 1210 on 112 and the upper end of the connecting piece 1151 allows the height and position of the connecting piece 1151 to be flexibly adjusted according to actual construction needs, and it has strong adaptability; the guide hole 1310 on the anchor plate 1131 provides precise positioning for the hook structure 1410, avoiding misalignment problems during installation and improving construction efficiency; the structural design of the device body 1100 is relatively streamlined, with fewer redundant components, which reduces material waste, while reducing the overall weight and reducing the risk of high-altitude installation and construction.

[0068] In this embodiment, a pad 1420 is provided above the notch 1210 , and a through hole 1421 is provided in the center of the pad 1420 . After the upper end of the connecting member 1151 passes through the through hole 1421 , a fixing nut 1430 is provided for fixing the connecting member 1151 to the cross bar 1112 .

[0069] Through this embodiment, the pad 1420 directly covers the top of the slot 1210, and the force on the anti-collision guardrail outer mold 1140 is transmitted to the cross bar 1112 through the connector 1151. The pad 1420 can effectively disperse the load and reduce the risk of bending or breaking of the cross bar 1112 due to uneven force. Through its function of evenly distributing pressure, the contact part between the connector 1151 and the cross bar 1112 is avoided from deformation or damage due to local stress concentration; after the connector 1151 passes through the through hole 1421 of the pad 1420, it is fastened by the fixing nut 1430 to form a rigid connection, which significantly improves the shear and tensile resistance of the connection part. Compared with traditional welding or simple plug-in methods, the nut fixing can adjust the tightness to avoid loosening due to vibration or temperature difference.

[0070] In this embodiment, the upper end of the connecting member 1151 is threadedly engaged with the fixing nut 1430, wherein there are multiple fixing nuts 1430 and the fixing nuts 1430 are arranged in sequence along the vertical axis direction of the connecting member 1151 to form a fixed height adjustable fixing structure 1440.

[0071] Through this embodiment, multiple fixing nuts 1430 are distributed along the vertical axis direction of the connecting piece 1151, allowing construction personnel to select fixing points of different heights according to actual needs, realizing adjustment while having high connection strength. By adjusting the position of the fixing nuts 1430, the outer mold and the structural contour are accurately fitted to avoid concrete pouring defects caused by height deviation. The adjustable height design also avoids component replacement due to installation errors, reducing material waste and rework costs. The threaded connection does not require an additional locking device, and the height adjustment can be completed by manually tightening or loosening the nut, thereby improving construction efficiency.

[0072] In this embodiment, the cantilever support assembly 1110 further includes a scissors strut 1114 , which is connected between the horizontal bar 1112 and the vertical bar 1111 . The scissors strut 1114 , the horizontal bar 1112 and the vertical bar 1111 form a triangular truss structure 1115 .

[0073] Through this embodiment, the scissors strut 1114 forms a triangular force-bearing unit by cross-connecting the horizontal bar 1112 and the vertical bar 1111, which effectively prevents the structure from twisting or local deformation when subjected to force. During the concrete pouring process, the anti-collision guardrail outer mold 1140 may bend the horizontal bar 1112 due to lateral pressure. The cross support of the scissors strut 1114 can significantly reduce such deformation.

[0074] In this embodiment, the hook structure 1410 of the connecting member 1151 is arc-shaped, and its curvature radius matches the inner wall shape of the guide hole 1310 of the anchoring plate 1131 .

[0075] Through this embodiment, the arc-shaped bend design avoids the stress concentration problem at right angles or sharp angles, so that the hook structure 1410 can evenly distribute the load when subjected to force, reducing the risk of local fatigue cracks; the arc-shaped hook with matching curvature radius fits tightly against the inner wall of the guide hole 1310, reducing friction and sliding on the contact surface between the two, and avoiding structural failure due to micro-wear; at the same time, the arc-shaped hook with matching curvature can be inserted into the guide hole 1310 more smoothly, reducing the difficulty of alignment during installation, especially in construction at high altitudes or in narrow spaces, significantly improving operational efficiency; the matching relationship between the arc-shaped hook with matching curvature and the guide hole 1310 is clear, and there is no need to damage the guide hole 1310 or the hook itself during disassembly, which facilitates later maintenance or replacement of damaged parts.

[0076] In this embodiment, the inner wall of the notch 1210 of the crossbar 1112 is provided with anti-slip grooves.

[0077] Through this embodiment, the anti-slip pattern significantly improves the friction coefficient between the connector 1151 and the cross bar 1112 by increasing the roughness of the inner wall of the groove 1210, thereby preventing slippage caused by external forces. During bridge construction, the vibration force during concrete pouring may be transmitted to the cross bar 1112 through the connector 1151, and the anti-slip pattern can reduce the slight displacement of the connector 1151.

[0078] like Figure 8-11 As shown, this embodiment provides a concrete anti-collision guardrail construction safety belt hanging device 2000, which includes a vertical pole 2120, which is vertically arranged and connected to the anti-collision guardrail 2000 and connected to the anti-collision guardrail outer mold 2, a clamping hoop 2140 is provided at the upper end of the vertical pole 2120, and a connecting hole 2210 is provided on the clamping hoop 2140 close to the anti-collision guardrail 2000. The connecting hole 2210 is used to connect the safety rope 2150; the lower end of the vertical pole 2120 is provided with a base 2110, and the lower end of the base 2110 is fixedly connected to the outside of the anti-collision guardrail 2000.

[0079] Through this embodiment, the vertical pole 2120 itself is connected to the anti-collision guardrail template, and a base 2110 is set at the lower end of the vertical pole 2120. The fixed connection between the base and the anti-collision guardrail template further strengthens the connection stability between the vertical pole 2120 itself and the anti-collision guardrail template, ensuring the safety of workers during the construction process.

[0080] In this embodiment, the base 2110 includes a bottom plate 2410 and a vertical tube 2420 for inserting into the lower end of the vertical rod 2120. The lower end of the vertical tube 2420 is vertically connected to the upper surface of the bottom plate 2410. The lower end of the vertical tube 2420 and the upper surface of the bottom plate 2410 can be fixedly connected to improve the overall stability of the device.

[0081] Through this embodiment, the bottom plate 2410 of the base 2110 is fixedly connected to the anti-collision guardrail template, and the vertical pipe 2420 is perpendicular to the upper surface of the bottom plate 2410. The vertical pipe 2420 is inserted into the lower end of the vertical pole 2120, and the vertical pipe 2420 plays a horizontal limiting role on the vertical pole 2120.

[0082] In this embodiment, the upper surface area of ​​the bottom plate 2410 is larger than the lower end surface area of ​​the vertical pole 2120 , and the upper surface of the bottom plate 2410 can completely cover the lower end surface of the vertical pole 2120 .

[0083] Through this embodiment, the base plate 2410 is fixedly connected to the anti-collision guardrail template, and the upper surface area is larger than the lower end face area of ​​the vertical pole 2120, that is, the upper surface width of the base plate 2410 is larger than the end face diameter of the vertical pole, thereby firmly supporting the lower end of the vertical pole 2120 to prevent the vertical pole 2120 from loosening and falling relative to the anti-collision guardrail template.

[0084] In this embodiment, a reserved hole is provided on the outer side of the anti-collision guardrail template corresponding to the connection of the vertical pole 2120, and a bolt 2130 is provided at the lower middle end of the vertical pole 2120 to cooperate with the reserved hole.

[0085] Through this embodiment, a bolt 2130 for connecting and fixing with the anti-collision guardrail template is set at the lower middle end of the vertical pole 2120, and a reserved hole is set at the corresponding connection on the outer side of the anti-collision guardrail template. Preferably, a nut corresponding to the bolt 2130 is set, or a nut corresponding to the bolt 2130 is welded and fixed, which is used to fix the vertical pole 2120 itself on the anti-collision guardrail template, and the fixing position is set at the lower middle position of the vertical pole, which not only ensures the stability of the vertical pole 2120 itself, but also ensures the protruding length of the upper end of the vertical pole 2120 relative to the anti-collision guardrail.

[0086] In this embodiment, the clamp 2140 includes a column matching hole 2310 for surrounding the vertical pole 2120. A fixing hole 2210 and a fastener matching with the fixing hole 2210 are provided on the side of the clamp 2140 away from the anti-collision guardrail template. The fixing hole 2210 and the fastener are used to adjust the diameter of the column matching hole 2310.

[0087] In this embodiment, the clamp 2140 is used to connect the safety rope 2150 to the upright pole 2120. This allows for flexible adjustment of the connection position of the safety rope 2150 on the upright pole 2120 while ensuring the stability of the connection between the safety rope 2150 and the upright pole 2120. To adjust the connection position of the safety rope 2150 on the upright pole 2120, simply operate the fastener on the fixing hole 2210 to enlarge the upright pole mating hole 2310, then move the clamp 2140. Once the clamp 2140 is in the desired position, operate the fastener again to reduce the diameter of the upright pole mating hole 2310.

[0088] In this embodiment, a rope clip for fixing the safety rope 2150 is provided between the safety rope 2150 and the connecting hole 2210 .

[0089] Through this embodiment, a rope clamp is used to fix the safety rope 2150 on the connecting hole 2210, and mechanical clamping is used to prevent the safety rope from sliding or falling off during use. The rope clamp is simple in design, easy to operate, and has a strong clamping force. Construction workers can quickly fix the safety rope on the clamp or adjust it when necessary, thereby improving construction efficiency and reducing the time wasted on installing or adjusting the safety rope. At the same time, the tension on the wire rope is evenly distributed, reducing fatigue fracture of the wire rope caused by local stress concentration, preventing the wire rope from wearing during use, and thus extending the service life of the safety rope.

[0090] like Figure 12-16 As shown, this embodiment provides a fastening device 3000 for the inner mold template of a crash guardrail, which includes a device body, and the device body includes: a device body, with threaded sleeves 3120 symmetrically welded at both ends of the device body; a connecting device 3130, which includes a first connecting steel plate 3210, and a first slot 3220 is provided at one end of the first connecting steel plate 3210, and a first high-strength screw 3230 is welded at the first slot 3220; a fixing device 3140, including a second connecting steel plate 3310, and a second slot 3320 is provided at one end of the second connecting steel plate 3310, and a second high-strength screw 3330 is welded at the second slot 3320, wherein the device body is rotatable and the threaded sleeves 3120 at both ends of the device body form a threaded fit with the first high-strength screw 3230 and the second high-strength screw 3330 respectively, forming a support structure 3150 with a telescopic adjustable length.

[0091] Through this embodiment, the threaded sleeves 3120 symmetrically welded at both ends of the device body cooperate with the screw through threads to achieve length adjustment. This design can flexibly adapt to guardrail inner molds of different sizes, significantly improving construction efficiency. At the same time, it can adjust its own length for installation according to the complex environment on site; the first high-strength screw 3230 and the second high-strength screw 3330 are combined with the precise cooperation of the threaded sleeve 3120 to provide excellent tensile and shear resistance, effectively resisting lateral pressure during concrete pouring.

[0092] In this embodiment, a first connection hole 3240 is provided at one end of the first connection steel plate 3210 away from the first high-strength screw 3230 , and a first bolt 3170 for fixing the first connection steel plate 3210 and the inner mold template 3160 is provided at the first connection hole 3240 .

[0093] Through this embodiment, the first connecting hole 3240 and the first bolt 3170 are matched with standardized thread specifications to adapt to the installation requirements of various inner mold templates 3160, reduce on-site processing time, and improve construction efficiency. The first bolt 3170 can be quickly tightened or loosened with a wrench or hand tool without the need for complex tools or collaboration of multiple people, significantly reducing labor costs, adapting to high-intensity construction scenarios, and achieving rapid installation and efficient construction.

[0094] In this embodiment, the end of the second connecting steel plate 3310 away from the second slot 3320 is set as an angled section 3340 at a certain angle to the front end, and a second connecting hole 3350 is provided at the end of the angled section 3340. The second connecting hole 3350 is provided with a second bolt 3190 for fixing the second connecting steel plate 3310 and the bridge deck 3180; wherein, after the second connecting steel plate 3310 and the bridge deck 3180 are fixed, the angled section 3340 is in contact with the bridge deck 3180.

[0095] Through this embodiment, the design of the angled section 3340 of the second connecting steel plate 3310 enables it to flexibly adapt to the slope or plane structure of the bridge deck 3180. Through the design of the angled section, a close fit with the bridge deck 3180 is achieved, avoiding loose fixation or stress concentration caused by structural mismatch. The inclination angle of the angled section 3340 can be customized in advance according to the slope of the bridge deck 3180, and no additional adjustment is required during construction, thereby reducing installation difficulty and improving construction efficiency.

[0096] In this embodiment, the device body is cylindrical, and the end faces of the threaded sleeves 3120 at both ends are flush with the ends of the device body. An adjustment hole 3410 that passes through the device body is provided in the middle of the device body. The adjustment hole 3410 is used to adjust the length of the support structure 3150.

[0097] Through this embodiment, the cylindrical device body has a uniform force characteristic, which can effectively disperse external pressure and vibration, reduce fatigue fracture problems caused by stress concentration, and significantly improve the compressive and bending resistance of the device body during the concrete pouring process; the adjustment hole 3410 runs through the device body, allowing the length of the support structure 3150 to be fine-tuned by inserting tools or adjusting rods 3112, adapting to the needs of different construction scenarios without replacing equipment, thereby improving the versatility of the equipment; the design of the adjustment hole 3410 supports rapid on-site adjustment, which can cope with installation deviations caused by template size errors or changes in the slope of the bridge deck 3180, thereby reducing the construction rework rate.

[0098] In this embodiment, the device body further includes a detachable adjustment rod 3112 provided at the adjustment hole 3410 . The adjustment rod 3112 is configured to be inserted into the adjustment hole 3410 to implement the rotation operation of the device body.

[0099] Through this embodiment, the detachable adjustment rod 3112 is connected through a plug-in type, allowing a single construction worker to quickly install or replace it without the need for complex tools or professional skills, significantly improving on-site operation efficiency; after the adjustment rod 3112 is inserted into the adjustment hole 3410, the rotation of the device body can be achieved through a rotation operation, accurately controlling the length of the support structure, adapting to different installation requirements, and reducing manual adjustment time.

[0100] In this embodiment, the device body is made of Q3345 steel.

[0101] Through this embodiment, the device body is made of Q3345 steel and can effectively withstand the lateral pressure and vibration load during the concrete pouring process, thereby preventing the device from being deformed or broken.

[0102] like Figure 17-20 As shown, this embodiment provides an anti-falling device for pouring concrete of a crash barrier, which includes a first baffle 4110, a second baffle 4120 and two side baffles 4130; the two side baffles 4130 are arranged relatively parallel to each other, and the first sides of the two side baffles 4130 are respectively connected to the two parallel sides of the first baffle 4110, and the second sides of the two side baffles 4130 are respectively connected to the two parallel sides of the second baffle 4120, and the first baffle 4110, the second baffle 4120 and the two side baffles 4130 together form a concrete diversion cavity.

[0103] Through this embodiment, a concrete diversion chamber is formed by the first baffle 4110, the second baffle 4120 and the two side baffles 4130 to guide the flow direction of concrete and prevent concrete from spilling during the pouring process, thereby reducing material waste, improving construction efficiency and avoiding safety hazards.

[0104] In this embodiment, the top height of the side baffle 4130 at the connection with the first baffle 4110 and the second baffle 4120 is the same as the top height of the first baffle 4110 and the second baffle 4120 respectively; the first baffle 4110 is arranged near the inner side of the anti-collision guardrail template, and the second baffle 4120 is arranged near the outer side of the anti-collision guardrail template. The bottoms of the first baffle 4110 and the second baffle 4120 are flush, and the vertical height of the first baffle 4110 is lower than that of the second baffle 4120.

[0105] Through this embodiment, the vertical height of the first baffle 4110 placed near the inside of the anti-collision guardrail template is designed to be lower than the vertical height of the second baffle 4120 placed near the outside of the anti-collision guardrail template. The surface of the side baffle 4130 is the body shape, and the upper end of the entire device is designed to be a downward inclined surface, which not only facilitates construction operations by construction personnel, but also reduces the probability of concrete spilling onto the outside of the anti-collision guardrail template during pouring.

[0106] In this embodiment, two through holes of equal horizontal height are provided at the lower middle portion of the first baffle 4110, and two through holes of equal horizontal height are provided at the lower middle portion of the second baffle 4120. The through holes on the first baffle 4110 and the through holes on the second baffle 4120 form two pairs of opposite through holes, and a rotating shaft 4140 passing through the first baffle 4110 and the second baffle 4120 is provided in each pair of through holes, and rolling elements 4150 are provided at both ends of the rotating shaft 4140.

[0107] Through this embodiment, a roller is formed by rotating the shaft 4140 and the rolling member 4150, and the rolling member 4150 contacts the flat steel plate on the top of the anti-collision guardrail template 4000, so that the entire device can move smoothly on the top of the anti-collision guardrail template 4000, making it convenient for construction personnel to adjust the overall position of the device according to casting requirements.

[0108] In this embodiment, the bottom of the first baffle 4110 and the bottom of the second baffle 4120 extend out of the bottom of the side baffle 4130 respectively, and the extended portions form a pair of limiting plates 4160 .

[0109] Through this embodiment, when the device is placed on the anti-collision guardrail template 4000, the limiting plate 4160 can be inserted into the reserved groove at the bottom of the template to play a limiting role, preventing the device from overturning during the pouring process and ensuring the stability of the construction process.

[0110] In this embodiment, the bottom surface of the limiting plate 4160 is lower than the horizontal plane where the lowest point of the rolling element 4150 is located.

[0111] Through this embodiment, when the device is placed on the anti-collision guardrail template 4000, the rolling member 4150 contacts the flat steel plate on the top of the anti-collision guardrail template 4000, and the bottom surface of the limiting plate 4160 is lower than the lowest point horizontal plane of the rolling member 4150, thereby improving the limiting effect of the limiting plate 4160 and ensuring the stability of the device during movement.

[0112] like Figure 21-28 As shown, this embodiment provides a bridge crash barrier working platform 5000, which includes a platform body; the platform body includes a truss 5110 arranged along the width direction of the crash barrier and parallel to the upper end surface of the crash barrier; an inner climbing frame 5120 and an outer climbing frame 5130 are provided at the lower end surface of the truss 5110, and the inner climbing frame 5120 and the outer climbing frame 5130 are respectively close to the inner side and the outer side of the crash barrier; a working platform 5140 is provided at the lower end of the outer climbing frame 5130;

[0113] A handrail 5160 is provided at the upper end surface of the truss 5110 and is arranged along the length direction of the truss 5110. The handrail 5160 is used for construction workers to grab when transferring from the inner climbing frame 5120 to the outer climbing frame 5130.

[0114] Through the handrail frame 5160 in this embodiment, construction workers can grab the handrail frame 5160 for support when transferring from the inner climbing frame 5120 to the outer climbing frame 5130, so that construction workers can stabilize their emotions and improve their sense of security under psychological pressure, while ensuring safety during transfer and preventing falls; when construction workers are working, they can climb from the lower end of the inner climbing frame 5120 to the upper end, and when they are close to the upper end, they can grab the curved rod 5161 of the handrail frame 5160, and when they move up to different positions, they can grab the curved rod 5161 at different heights; when workers transfer from the upper end of the inner climbing frame 5120 to the upper end of the outer climbing frame 5130, they can hold the handrail frame 5160 throughout the entire transfer process. Even if they look at the sky outside the bridge, they will realize that holding the handrail frame 5160 can avoid falling, reducing the possibility of falling themselves. This greatly improves the sense of security of workers, reduces panic, shaking, etc. caused by the psychological pressure of fear, maintains stable movement, and ensures construction efficiency and safety.

[0115] In this embodiment, the truss 5110 includes two long rods 5611 spaced apart along the length direction of the anti-collision guardrail; one end of the two long rods 5611 is commonly connected to a short rod 5612; the handrail frame 5160 includes a bent rod 5161; the bent rod 5161 is bent and connected to the long rod 5611; the two ends of the bent rod 5161 are respectively connected to the two ends of the long rod 5611, and together form a triangle.

[0116] The triangular arrangement of the bent rod 5161 and the long rod 5611 in this embodiment makes the handrail frame 5160 more stable, thereby increasing the safety of personnel transfer. At the same time, the closer the bent rod 5161 is to the two ends, the lower the height is. This allows construction workers to grasp the bent rod 5161 at different heights when the inner climbing frame 5120 and the outer climbing frame 5130 move up and down, making movement more convenient. Among them, the inner climbing frame 5120 and the outer climbing frame 5130 are both common ladder structures, consisting of horizontal and vertical rods. The length of the outer climbing frame 5130 is greater than that of the inner climbing frame 5120. In this embodiment, the inner climbing frame 5120 has four The horizontal rods are four steps, and the outer climbing frame 5130 has 4-10 horizontal rods, that is, 4-10 steps; for example, when climbing the inner climbing frame 5120, when standing on the first step at the bottom of the inner climbing frame 5120, you can grab the lowest point of the curved rod 5161, and the higher you climb, the higher you can grab the highest position of the curved rod 5161, until you climb to the highest position of the inner climbing frame 5120, when you bend your body, squat or change direction and move to the outer climbing frame 5130, you can still always grab the corresponding position of the handrail frame 5160; when moving from the highest position of the outer climbing frame 5130 to the working platform 5140, you can similarly grab the corresponding position of the handrail frame 5160.

[0117] In this embodiment, the handrail frame 5160 further includes a reinforcing rod 5162 ; one end of the reinforcing rod 5162 is vertically connected to the long rod 5611 , and the other end is connected to the bending point of the bent rod 5161 .

[0118] Through the setting of the reinforcing rod 5162 in this embodiment, the triangle formed by the bent rod 5161 and the long rod 5611 is divided into two, thereby further improving stability, and the vertical setting of the reinforcing rod 5162 enables construction workers to still grasp when the inner climbing frame 5120 and the outer climbing frame 5130 move up and down. Through the bent rod 5161 and the reinforcing rod 5162, construction workers can grasp the appropriate position according to their needs.

[0119] In this embodiment, one end of the inner climbing frame 5120 is connected to the two long rods 5611 , and a scissors strut 5121 connected to the long rods 5611 is provided on the outer side of the inner climbing frame 5120 .

[0120] By setting the scissors strut 5121 in this embodiment, a triangle is formed between the long rod 5611, one side of the inner climbing frame 5120 and the scissors strut 5121, thereby improving the stability of the inner climbing frame 5120.

[0121] In this embodiment, two spaced-apart stabilizing frames 5150 are provided at the outer climbing frame 5130; the stabilizing frame 5150 includes a vertical rod 5152 and a horizontal rod 5151; one end of the vertical rod 5152 is connected to the long rod 5611, and the other end is connected to the working platform 5140; the two ends of the horizontal rod 5151 are respectively connected to the vertical rod 5152 and the outer side of the outer climbing frame 5130.

[0122] The provision of the stabilizing frame 5150 in this embodiment allows both sides of the working platform 5140 to be connected, thereby improving the stability of the working platform 5140 and ensuring the safety of personnel standing on the working platform 5140. Since the outer climbing frame 5130 is longer than the inner climbing frame 5120, it becomes increasingly difficult to grasp the handrail 5160 as one moves closer to the working platform 5140. Therefore, when a person moves downward facing the anti-collision guardrail, he or she can grasp the outer climbing frame 5130 with both hands. When moving downward facing the outside of the bridge with his or her back against the anti-collision guardrail, he or she can grasp the vertical bars 5152 of the stabilizing frame 5150 with both hands. A plurality of horizontal bars 5151 can be provided to block the gaps between each group of stabilizing frames 5150 and between the stabilizing frames 5150 and the outer climbing frames 5130, thereby preventing personnel from falling from the working platform 5140. The working platform 5140 is composed of a grid structure formed by multiple horizontal and vertical bars for personnel to stand on.

[0123] In this embodiment, a connecting rod 5614 is vertically connected to the middle of the two long rods 5611; a plurality of first pulleys 5115 are arranged at intervals on the connecting rod 5614.

[0124] By setting the first pulley 5115 in this embodiment, the entire platform can be moved relatively easily by the contact between the first pulley 5115 and the upper end surface of the anti-collision guardrail, thereby improving the efficiency of the platform movement; wherein, see Figure 6 It can be seen that a rectangular entrance and exit 5613 is formed between the connecting rod 5614, the long rod 5611 and the short rod 5612. The entrance and exit 5613 is located directly above the outer climbing frame 5130. Through the entrance and exit 5613, personnel can be surrounded by the entrance and exit 5613 during the transfer from the inner climbing frame 5120 to the outer climbing frame 5130, and there are more grabbing points; at the same time, the entrance and exit 5613 can also give construction workers a certain sense of security and reduce fear and other pressures.

[0125] In this embodiment, a plurality of second pulleys 5122 are provided on the side of the inner climbing frame 5120 and the outer climbing frame 5130 facing the anti-collision guardrail; the first pulley 5115 and the second pulley 5122 are both in contact with the anti-collision guardrail.

[0126] Through the coordinated arrangement of the first pulley 5115 and the second pulley 5122 in this embodiment, the entire platform can be easily moved at the anti-collision guardrail, so that when movement is required, workers can stand on the inside of the anti-collision guardrail to push the platform, or push the concrete surface of the anti-collision guardrail at the platform to achieve movement.

[0127] In this embodiment, a first hanging ring 5116 is provided at one end of the long rod 5611 away from the short rod 5612 ; a second hanging ring 5163 is provided at the bending part of the bent rod 5161 .

[0128] By setting the first lifting ring 5116 in this embodiment, the counterweight can be hung as needed to ensure the stability of the platform; by setting the second lifting ring 5163, the safety belt worn by the construction workers can be connected to ensure the safety of the construction workers.

[0129] In this embodiment, all rods are hollow square rods. Except for the first pulley 5115, the second pulley 5122, the first hanging ring 5116 and the second hanging ring 5163, they are all connected by hollow square rods with a wall thickness of 3 mm using a full welding process.

[0130] This embodiment provides a method for constructing an anti-collision guardrail, which includes:

[0131] Step 1: Fix the vertical rod 1111 of the outer mold cantilever device 1000 to the vertical back rib 11 of the anti-collision guardrail inner mold 1, anchor the hook structure 1410 to the anti-collision guardrail outer mold 2, and fix the safety belt suspension device 2000 to the anti-collision guardrail outer mold 2.

[0132] Step 2: hoist the inner mold 1 and the outer mold 2 of the crash barrier respectively, and then temporarily fix the inner mold 1 and the outer mold 2 of the crash barrier by using the tension bolts and the outer mold cantilever device 1000;

[0133] Step 3: Install the inner mold formwork fastening device 3000 at the vertical back rib 11 of the crash barrier inner mold 1, and adjust the telescopic length of the first high-strength screw 3230 and the second high-strength screw 3330 to fasten the crash barrier inner mold 1 and the crash barrier outer mold 2;

[0134] Step 4: Push the concrete anti-drop device 4000 to the top of the anti-collision guardrail formwork composed of the anti-collision guardrail inner form 1 and the anti-collision guardrail outer form 2 to pour concrete. When pouring concrete, place the pump pipe in the concrete diversion cavity;

[0135] Step 5: After the concrete pouring is completed, the concrete anti-fall device 4000 is removed. After the concrete strength reaches the standard, the anti-collision guardrail template is removed, and then the working platform 5000 is installed. The working platform 5000 is used for workers to climb onto the working platform 5140 through the internal climbing frame 5120 for repairs.

[0136] The specific construction steps are as follows:

[0137] Construction step 1: Before the construction of the concrete anti-collision guardrail begins, the bridge anti-collision guardrail outer formwork installation cantilever auxiliary device required for this process, the concrete anti-collision guardrail construction safety belt suspension device, the anti-collision guardrail template fastening device, the self-propelled bridge anti-collision guardrail concrete pouring anti-fall auxiliary device, the self-propelled concrete anti-collision guardrail appearance renovation auxiliary work platform, etc. are all processed and manufactured, and the self-propelled concrete anti-collision guardrail construction trolley is completed after entering the site for acceptance.

[0138] Construction Step 2: According to the design drawings and construction plan, complete the installation of the anti-collision guardrail reinforcement, protective layer pads, and embedded parts. Also, secure the bridge anti-collision guardrail outer formwork cantilever auxiliary device to the inner and outer forms of the anti-collision guardrail, and secure the concrete anti-collision guardrail construction safety belt suspension device to the guardrail outer formwork.

[0139] Construction Step 3: Use a forklift to hoist the formwork, prioritizing the inner formwork. After hoisting, temporarily secure it with tension bolts and the bridge guardrail outer formwork cantilever mounting auxiliary device. Fine-tuning and tightening the formwork are performed using a self-propelled concrete guardrail construction trolley. Workers on the inner side of the guardrail stand on the bridge deck to adjust the formwork, while workers on the outer side of the guardrail stand on the trolley, with coordination from both sides.

[0140] Step 4: Install the guardrail formwork fastening device. Install the device on the inner side of the guardrail at the back rib of the formwork. Connect the top of the device to the back rib of the guardrail and secure it with high-strength bolts. Secure the bottom with expansion bolts driven into the concrete leveling layer. Once secured, insert a steel rod into the adjustment hole and rotate the steel pipe to adjust the device's length, thereby tightening and adjusting the formwork.

[0141] Construction Step 5: After the formwork reinforcement is complete, prepare for concrete pouring. Before pouring, a self-propelled bridge guardrail concrete pouring anti-drop auxiliary device is installed above the guardrail formwork to assist in the concrete pouring process. During the concrete pouring process, the automobile pump pipe or tanker truck discharge port is placed inside the self-propelled bridge guardrail concrete pouring anti-drop auxiliary device, which effectively prevents concrete from spilling and falling during the pouring process, reducing the risk of falling objects from heights and minimizing resource waste. During the operation, workers use the concrete guardrail construction safety belt suspension device to suspend their safety belts while vibrating the concrete to ensure a safe process. This device can be pushed directly along the formwork.

[0142] Construction step 6: (1) After the concrete pouring is completed, the self-propelled bridge anti-collision guardrail concrete pouring anti-drop auxiliary device is removed. (2) After the concrete strength reaches the requirement, the formwork is removed. Before the demolition work begins, the self-propelled concrete anti-collision guardrail construction trolley moves to the top of the anti-collision guardrail, uses the trolley to remove the formwork tension bolts, and uses a forklift to cooperate in removing the outer formwork. (3) Move the trolley away, and use the forklift to gently lift the inner formwork of the anti-collision guardrail, manually remove the anti-collision guardrail formwork fastening device, and then remove the inner formwork.

[0143] Step 7: A crane or forklift is used to install a self-propelled concrete crash barrier auxiliary work platform. Workers access the platform via internal and external climbing frames and repair the guardrail's tension bolt holes and defects. During this process, a safety belt is hung from the upper lifting ring. The device is manually pushed from the inside of the guardrail.

[0144] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application based on one or several embodiments provided in the present application to obtain other embodiments, and these embodiments do not exceed the scope of protection of the present application.

[0145] The above is a schematic description of the present invention and its embodiments, which is not restrictive. The embodiments shown in the embodiments are only part of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by the above and, without departing from the purpose of the present invention, designs a structure and embodiment similar to the technical solution without creatively designing, they shall fall within the scope of protection of the present invention.

Claims

1. A safety protection device for anti-collision guardrail construction, comprising: An outer formwork cantilever device (1000), a safety belt hanging device (2000), an inner formwork fastening device (3000), a concrete pouring anti-fall device (4000) and a construction trolley (6000); The outer mold cantilever device (1000) comprises a cantilever support assembly (1110), the cantilever support assembly (1110) comprises a vertical rod (1111) fixed to the inner mold (1) of the anti-collision guardrail, a horizontal rod (1112) with a notch (1210), and a connecting piece (1151) anchoring the outer mold (2) of the anti-collision guardrail through a hook structure (1410); the safety belt hanging device (2000) comprises a vertical rod (2120), a hoop (2140) and a safety rope (2150), the vertical rod (2120) being fixed to the outer mold (2 ); The inner formwork fastening device (3000) is provided with threaded sleeves (3120) at both ends, connected to the anti-collision guardrail inner formwork (1) through a first connecting steel plate (3210), and fixed to the bridge deck (3180) through a second connecting steel plate (3310); The concrete pouring anti-fall device (4000) includes a first baffle (4110), a second baffle (4120) and two side baffles (4130), and the first baffle (4110), the second baffle (4120) and the two side baffles (4130) enclose a concrete diversion cavity; The utility model further comprises a working platform (5000), wherein the working platform (5000) comprises a truss (5110) arranged parallel to the upper end surface of the anti-collision guardrail, an inner climbing frame (5120) and an outer climbing frame (5130) are arranged at the lower end surface of the truss (5110), and a working platform (5140) is arranged at the lower end of the outer climbing frame (5130).

2. A safety protection device for anti-collision guardrail construction according to claim 1, wherein: The cantilever support assembly (1110) comprises a support frame (1113) consisting of a vertical rod (1111) and a horizontal rod (1112), wherein the vertical rod (1111) is vertically arranged and fixedly connected to the vertical back rib (11) of the inner mold (1) of the anti-collision guardrail, and the horizontal rod (1112) is horizontally arranged at the upper end of the vertical rod (1111), and the end of the horizontal rod (1112) away from the vertical rod (1111) is provided with a notch (1210) penetrating the upper and lower surfaces of the horizontal rod (1112); an anchor plate assembly (1130) comprises An anchor plate (1131) is fixed to the top surface of the outer mold (2) of the anti-collision guardrail, and a guide hole (1310) is provided on the anchor plate (1131); a force transmission locking assembly (1150) includes an L-shaped connecting piece (1151), wherein the lower end of the connecting piece (1151) is provided with a hook structure (1410), the hook structure (1410) is plugged into the guide hole (1310), and the upper end of the connecting piece (1151) extends into the notch (1210) and forms an adjustable connection with the cross bar (1112).

3. The anti-collision guardrail construction safety protection device according to claim 1, wherein: The vertical pole (2120) is vertically arranged and connected to the anti-collision guardrail (2000) on the anti-collision guardrail outer mold (2); the upper end of the vertical pole (2120) is provided with a clamping hoop (2140); the clamping hoop (2140) is provided with a connecting hole (2210) on a side close to the anti-collision guardrail inner mold (1); the connecting hole (2210) is used to connect a safety rope (2150); the lower end of the vertical pole (2120) is provided with a base (2110); the lower end of the base (2110) is fixedly connected to the outer side of the anti-collision guardrail (2000).

4. The anti-collision guardrail construction safety protection device according to claim 1, wherein: The inner mold template fastening device (3000) is symmetrically welded with threaded sleeves (3120) at both ends; the connecting device (3130) includes a first connecting steel plate (3210), one end of the first connecting steel plate (3210) is provided with a first slot (3220), and a first high-strength screw (3230) is welded at the first slot (3220); the fixing device (3140) includes a second connecting steel plate (3310), one end of the second connecting steel plate (3310) is provided with a second slot (3320), and a second high-strength screw (3330) is welded at the second slot (3320), wherein the inner mold template fastening device (3000) is rotatable and the threaded sleeves (3120) at both ends of the inner mold template fastening device (3000) respectively form threaded engagement with the first high-strength screw (3230) and the second high-strength screw (3330), forming a support structure (3150) with a telescopically adjustable length.

5. The anti-collision guardrail construction safety protection device according to claim 1, wherein: The two side baffles (4130) are arranged relatively parallel to each other, the first sides of the two side baffles (4130) are respectively connected to the two parallel sides of the first baffle (4110), and the second sides of the two side baffles (4130) are respectively connected to the two parallel sides of the second baffle (4120); the top height of the side baffles (4130) at the connection with the first baffle (4110) and the second baffle (4120) is respectively the same as the top height of the first baffle (4110) and the second baffle (4120); the first baffle (4110) is arranged near the inner mold (1) of the anti-collision guardrail, and the second baffle (4120) is arranged near the outer mold (2) of the anti-collision guardrail; the bottoms of the first baffle (4110) and the second baffle (4120) are flush, and the vertical height of the first baffle (4110) is lower than that of the second baffle (4120).

6. A safety protection device for anti-collision guardrail construction according to claim 5, wherein: Two through holes of equal height are provided at the lower middle portion of the first baffle (4110), and two through holes of equal height are provided at the lower middle portion of the second baffle (4120). The through holes on the first baffle (4110) and the through holes on the second baffle (4120) form two pairs of opposite through holes. A rotating shaft (4140) passing through the first baffle (4110) and the second baffle (4120) is provided in each pair of through holes, and rolling elements (4150) are provided at both ends of the rotating shaft (4140).

7. The anti-collision guardrail construction safety protection device according to claim 6, wherein: The bottom of the first baffle (4110) and the bottom of the second baffle (4120) extend out of the bottom of the side baffle (4130), respectively. The extended portions form a pair of limiting plates (4160), and the bottom surfaces of the limiting plates (4160) are lower than the horizontal plane where the lowest point of the rolling element (4150) is located.

8. The anti-collision guardrail construction safety protection device according to claim 1, wherein: The working platform (5000) includes a truss (5110) arranged along the width direction of the anti-collision guardrail and parallel to the end surface of the anti-collision guardrail; an inner climbing frame (5120) and an outer climbing frame (5130) are provided at the lower end surface of the truss (5110), and the inner climbing frame (5120) and the outer climbing frame (5130) are respectively close to the inner side and the outer side of the anti-collision guardrail; a working platform (5140) is provided at the lower end of the outer climbing frame (5130); A handrail (5160) is provided at the upper end surface of the truss (5110) along the length direction of the truss (5110). The handrail (5160) is used for construction workers to grab when transferring from the inner climbing frame (5120) to the outer climbing frame (5130).

9. The anti-collision guardrail construction safety protection device according to claim 8, wherein: The truss (5110) includes two long rods (5611) spaced apart along the length direction of the anti-collision guardrail; one end of the two long rods (5611) is commonly connected to a short rod (5612); the handrail (5160) includes a bent rod (5161); the bent rod (5161) is bent and connected to the long rod (5611); the two ends of the bent rod (5161) are respectively connected to the two ends of the long rod (5611), and together form a triangle.

10. A method for constructing a crash barrier, comprising: Step 1: Fix the vertical rod (1111) of the outer mold cantilever device (1000) to the vertical back rib (11) of the anti-collision guardrail inner mold (1), anchor the hook structure (1410) to the anti-collision guardrail outer mold (2), and fix the safety belt hanging device (2000) to the anti-collision guardrail outer mold (2); Step 2: hoist the inner mold (1) and the outer mold (2) of the anti-collision guardrail respectively, and then temporarily fix the inner mold (1) and the outer mold (2) of the anti-collision guardrail by using tension bolts and the outer mold cantilever device (1000); Step 3: Install the inner mold template fastening device (3000) at the vertical back rib (11) of the anti-collision guardrail inner mold (1), and adjust the telescopic length of the first high-strength screw (3230) and the second high-strength screw (3330) to fasten the anti-collision guardrail inner mold (1) and the anti-collision guardrail outer mold (2); Step 4: Push the concrete anti-drop device (4000) to the top of the anti-collision guardrail template composed of the anti-collision guardrail inner mold (1) and the anti-collision guardrail outer mold (2), and pour concrete. When pouring concrete, place the pump pipe in the concrete diversion cavity; Step 5: After the concrete pouring is completed, the concrete anti-fall device (4000) is removed. After the concrete strength reaches the standard, the anti-collision guardrail template is removed, and then the working platform (5000) is installed. The working platform (5000) is used for workers to climb onto the working platform (5140) through the inner climbing frame (5120) for repairs.

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