CN-224227650-U - Anti-falling system for bridge anti-collision guardrail construction

CN224227650UCN 224227650 UCN224227650 UCN 224227650UCN-224227650-U

Abstract

The utility model discloses a falling-preventing system for bridge anti-collision guardrail construction, which consists of a protective bracket, a safety bus rope and a safety belt. The protective bracket comprises an inclined supporting rod and a supporting upright post, the end head of the inclined supporting rod is provided with a closed buckle, and the bottom of the inclined supporting rod can be welded on a steel template or sleeved on a split screw rod so as to enhance stability and facilitate installation and disassembly. The safety parent rope comprises a rope and a fixing part, wherein the fixing part comprises a limit nut matched with a split bolt of a steel template, a vertical hanging ring and a transverse hanging ring welded at the bottom of a pre-buried fence steel bar, one end of the rope is provided with an adjustable hook, and the multi-point stable limit and tension adjustment are realized through the fixing part. During construction, the safety belt worn by constructors is hung and buckled on the safety parent rope through the safety rope, and can freely move within a limited range. The system has the advantages of stable support, flexible installation, safety of constructors, improvement of operation efficiency, remarkable improvement of construction efficiency and the like, can effectively reduce the safety risk of high-altitude edge operation, reduces construction cost, and is convenient to popularize and apply.

Inventors

ZHAO JINHONG
Qian Tingliang
Zhu Jiabiao
WANG SHUN
LIU SENYAN
CHEN JIHONG
YIN HONGYUE
ZHAO WENTAO
JIANG BAOXI
YANG JIE
WANG ZHEN
YANG HONGBO
Yosho Masamitsu

Assignees

云南省建设投资控股集团有限公司

Dates

Publication Date: 20260512
Application Date: 20250331

Claims (7)

1. The utility model provides a system of falling is prevented in bridge anticollision barrier construction, includes protective bracket, safe parent rope, its characterized in that: The protection support comprises an inclined support rod (11) extending upwards and outwards in an inclined mode and a supporting upright post (12) located below the inclined support rod, a closed buckle (13) is arranged at the end head of the inclined support rod (11), the bottom ends of the inclined support rod (11) and the supporting upright post (12) are fixedly arranged on a steel template (20), the protection support is at least two parts and is respectively arranged at two ends of a construction area, and ropes (31) for installing and guiding safety parent ropes are arranged, so that the ropes (31) penetrate through the closed buckle (13) and are transversely arranged along the outer side direction of the steel template (20); The safety parent rope comprises a rope (31) and a plurality of fixing parts (32), wherein the fixing parts (32) are fixedly arranged on the inner side of the steel template (20) and fixedly arranged with embedded fence steel bars (33), two ends and the middle part of the rope (31) are fixedly connected with the fixing parts (32), at least one end of the rope (31) is provided with adjustable hooks (323) (34), the rope (31) is kept taut by adjusting the length of the adjustable hooks (323) (34), and the aperture of the fixing parts (32) is smaller than the thickness of the adjustable hooks (323) (34); The safety belt is worn on the body of construction operators and is connected through a safety rope (41), one end of the safety rope (41) is fixedly connected with the safety belt, and the other end of the safety rope is hung and buckled on a safety parent rope between the protective brackets.
2. The anti-falling system for bridge anti-collision guardrail construction according to claim 1, wherein the fixing component (32) comprises a limit nut (322) and a split bolt (321) at the bottom of the steel template (20), two ends of a rope (31) of the safety master rope are hooks (323), the hooks (323) can be hung on the split bolt (321), and the hooks (323) can be locked by screwing the inner limit nut and the outer limit nut (322) into the split bolt.
3. The anti-falling system for bridge anti-collision guardrail construction according to claim 2, wherein the fixing component (32) further comprises a plurality of vertical hanging rings (324), the lower ring body (325) of the vertical hanging rings (324) is installed on the split bolts (321) in a penetrating mode, the inner side and the outer side of the vertical hanging rings (324) are screwed through two limiting nuts (322), the vertical hanging rings (324) extend upwards, the ropes (31) penetrate through the vertical hanging rings (324), the aperture of the vertical hanging rings (324) is smaller than the width of the hooks (323), and the vertical hanging rings (324) are arranged on the inner side ends of the split bolts (321).
4. The anti-falling system for bridge anti-collision guardrail construction according to claim 2, wherein the fixing component (32) further comprises transverse hanging rings (326), a plurality of intermittent transverse hanging rings (326) are pre-welded at the bottom of the embedded guardrail steel bars (33), and the transverse hanging rings (326) extend inwards transversely and are used for the ropes (31) to pass through.
5. The anti-falling system for bridge anti-collision guardrail construction according to claim 1, wherein the adjustable hook (323) (34) comprises a sleeve (341), inner threads are arranged on inner walls of two ends of the sleeve (341), a front screw (342) and a rear screw (343) which are installed in an adaptive mode with the inner threads are arranged on two ends of the sleeve (341), the front screw (342) is connected with the tail portion of the hook, the rear screw (343) is connected with the rope (31), a convex section (344) is arranged at the tail end of the rear screw (343), the thickness of the convex section (344) is larger than the aperture of the fixed part (32), and the distance between the rope (31) and the head of the hook (323) can be adjusted in the length range of the sleeve (341) through screwing the front screw (342) or the rear screw (343), so that the rope (31) can be tightly fastened.
6. The anti-falling system for bridge anti-collision guardrail construction according to claim 1, wherein a steering guide wheel (50) is transversely arranged in the middle of a steel template (20) and an embedded fence steel bar (33) close to one side of the protective bracket, and a rope (31) is sleeved around the steering guide wheel (50).
7. The anti-falling system for bridge anti-collision guardrail construction according to claim 1, wherein the inclined strut (11) and the supporting upright post (12) are integrally designed, and the bottoms of the inclined strut and the supporting upright post are respectively sleeved and fastened at two ends of the opposite-pull screw at the upper part of the steel template (20).

Description

Anti-falling system for bridge anti-collision guardrail construction Technical Field The utility model relates to the technical field of safety facilities in bridge engineering construction, in particular to a falling prevention system for bridge anti-collision guardrail construction. Background The bridge anti-collision guardrail is used as a very common structure in bridge engineering, and plays a key role in protecting bridge traffic safety. Among the many forms of construction, reinforced concrete guardrails are the most widely used choice due to their good stability and durability. The anti-collision guardrail is usually arranged at the edge positions on two sides of the bridge deck, and the actual topography of the bridge is complex and changeable, so that the height of the edge of the anti-collision guardrail is uneven, and the height of a part of special sections can even reach hundreds of meters. The bridge anti-collision guardrail template generally adopts a shaping steel template, and the template has the advantages of high strength, accurate size, reusability and the like, and can effectively ensure the appearance quality and the dimensional accuracy of the anti-collision guardrail. In the construction process of the crash barrier, a series of key procedures are covered. The method comprises the steps of firstly, installing the steel bars, machining, binding and welding the steel bars strictly according to design requirements, ensuring the stability and accuracy of a steel bar framework, secondly, installing the templates, ensuring tight splicing and firm installation of the templates, providing a reliable die cavity for subsequent concrete pouring, thirdly, performing concrete pouring operation, fully vibrating the concrete by means of vibrating equipment in the pouring process to ensure the compactness of the concrete, avoiding quality defects such as honeycombs and pitting surfaces, and finally, carefully curing the poured concrete, and ensuring the normal increase of the strength of the concrete. However, the whole construction process has a plurality of safety risks, wherein the high-altitude edge working and the high-altitude falling risks are particularly prominent. According to the common construction technology at present, in combination with the special construction scheme of the bridge anti-collision guardrail, when constructing the anti-collision guardrail, the safety protection measures commonly adopted by constructors are to hang the safety belt buckle on the anti-collision wall steel template nearby. Also, in order to secure safety, the effective length of the webbing is generally limited to not more than 2m. However, the mode has obvious defects that the safety belt is limited in length, so that the moving range of constructors during operation is severely limited, and various construction operations cannot be flexibly carried out. For example, when the reinforcement is tied, it is difficult for the constructor to freely reach some positions requiring accurate operation, and the position of the seat belt has to be adjusted repeatedly, which consumes a lot of time and effort. This not only results in extremely low working efficiency at the high altitude, but also in the process of frequently adjusting the safety belt, the constructors are also at a greater safety risk. Once improperly operated, a high fall accident may occur. The problems of low operation efficiency, high safety risk and high hidden danger of constructors are more remarkable due to inconvenience and potential safety hazard. The proposal described in patent nos. 202221463924.1 and 202021102211.3, which is to set up a guardrail above the mold frame plate, requires a lot of time and labor to assemble and install the guardrail assembly, and also affects a certain convenience of construction, and requires frequent disassembly and assembly, which is time-consuming and labor-consuming. Disclosure of Invention In order to solve the defects and the shortcomings of the prior art, the inventor team provides a guardrail construction anti-falling system which is safe, easy to construct, convenient to install and detach and convenient to construct through improved design. Specifically, the utility model is realized as follows: The anti-falling system for the construction of the anti-collision guardrail of the bridge comprises a protection support and a safety parent rope, wherein the protection support comprises an inclined supporting rod extending upwards and outwards obliquely and a supporting column located below the inclined supporting rod, a closed buckle is installed at the end head of the inclined supporting rod, the bottom ends of the inclined supporting rod and the supporting column are fixedly installed on a steel template, the protection support is at least two parts and is respectively installed at two ends of a construction area, ropes for installing and guiding the safety parent rope are used for enabling the rope