Worker safety device for entering bridge inspection walkway

Abstract

The present invention relates to a safety device that provides a fixing point for a worker's safety line by being rapidly installed on a bridge guardrail without the need for separate drilling. The present invention includes a mounting body that wraps around the upper part of the guardrail, a width fixing part adjustable to the thickness of the guardrail, and a hook to which the worker's safety line is connected. Accordingly, it can be universally applied to various types of bridge railings and guardrails without damaging the structure, and has the advantage of effectively preventing worker fall accidents.

Description

Technology Field

[0001] The present invention relates to a worker safety securing device, and more specifically, to a worker safety securing device for entering a bridge inspection walkway used to ensure the safe entry of a worker when the worker enters the bridge inspection walkway to perform tasks such as safety inspection or maintenance, thereby preventing a worker from falling. Background Technology

[0002] Access routes to bridge inspection walkways are high-altitude and narrow spaces, and as shared use increases, it is difficult to clearly determine safety, resulting in a high risk of falls when workers enter the walkway with equipment. Although industrial safety regulations require safety railings, safety belts, safety lines, and fall prevention equipment, the following limitations exist in actual bridge inspection sites.

[0003] First, there is a problem in that the installation of safety railings, safety belts, safety ropes, and fall prevention equipment is difficult due to differences in the shapes of structures at the site. It is also difficult to uniformly apply standard safety equipment because the shape, thickness, top elevation, and curvature of bridge guardrails vary. As a result, on certain bridges, the installation of safety equipment may be cumbersome or impossible, potentially leading to inadequate safety measures.

[0004] Second, commonly used temporary installation methods pose a risk of safety accidents due to their high instability. Specifically, while methods such as temporarily tying ropes or using temporary fasteners have been employed in the past, there is a problem with unstable fall prevention performance due to unclear reliability of the fastening points and load-bearing capacity.

[0005] Third, the temporary installation method presents problems such as reduced work efficiency and increased installation time depending on the on-site worker. In other words, inexperienced workers spend excessive time installing safety equipment, causing work progress to be delayed and leading them to omit or minimize safety measures, thereby increasing the risk of accidents.

[0006] Fourth, there is difficulty in securing anchor points. Reliable anchor points where workers can attach safety lines are not always present around the inspection path. As a result, even if a safety belt is present, the lack of proper attachment points weakens the actual fall prevention function. Prior art literature

[0007] Korean Registered Patent No. 10-1024412 (Registered March 16, 2011) Korean Registered Patent No. 10-2584320 (Registered September 25, 2023) The problem to be solved

[0008] The objective of the present invention is to provide a worker safety device for accessing bridge inspection walkways that can be easily and quickly installed on a bridge guardrail without the need for separate structural drilling or deformation.

[0009] Another objective of the present invention is to provide a worker safety device for entering bridge inspection walkways that ensures compatibility to accommodate various protective wall shapes, thicknesses, and steps.

[0010] Another objective of the present invention is to provide a worker safety device for entering a bridge inspection walkway that can provide a highly reliable fastening point.

[0011] Another objective of the present invention is to provide a worker safety device for entering a bridge inspection walkway that allows for easy installation and dismantling, thereby improving the implementation rate of safety measures. means of solving the problem

[0012] A worker safety securing device for entering a bridge inspection path according to the present invention is characterized in that it comprises a mounting bracket that is detachably mounted on a bridge guardrail and provides a fixing point for a worker's safety line, the mounting bracket comprising: a mounting body formed to wrap around a part of the guardrail and capable of being hooked onto the guardrail; a contact support portion provided on the inner side of the mounting body and in contact with the wall surface of the guardrail; and a safety hook fastening portion formed on the outer surface of the mounting body to which a worker's safety line hook is fastened.

[0013] It may include a width fixing part provided on the mounting body and capable of fixing the width of the mounting body after varying it in correspondence with the thickness of the protective wall.

[0014] It is preferable that the above-mentioned mounting body is composed of an inner frame and an outer frame that overlap each other and are slidably connected, allowing for width adjustment.

[0015] The width fixing part may include a plurality of adjustment holes formed in the inner frame and the outer frame, respectively, and a length adjustment pin that is coupled by passing through the adjustment holes.

[0016] The above contact support preferably includes a cushioning pad made of an elastic material selected from rubber, urethane, and silicone to increase friction with the protective wall and prevent damage to the surface of the structure.

[0017] Depending on the case, the mounting body may be in the shape of a hook with a portion of its cross-section curved so as to be mounted on a circular or elliptical guardrail, and a safety fixing pin installed in the mounting body so as to be rotatable inwardly may be installed.

[0018] To ensure visibility during nighttime operation, a reflective tape or a light-emitting diode (LED) lamp may be provided on a part of the outer surface of the mounting body.

[0019] A plurality of bracket-shaped protrusions arranged upwardly sharply on the above contact support may be formed.

[0020] The above contact support may be formed at an angle such that its thickness decreases as it goes upward.

[0021] Multiple safety ring fasteners may be installed. Effects of the invention

[0022] According to the present invention, the mounting body is hooked onto the protective wall, or after hooking, the width fixing part is tightened, allowing the mounting bracket to be stably fixed to the protective wall, so that it can be quickly installed on-site without separate drilling or damage to the structure.

[0023] According to the present invention, the width fixing part (clamp, etc.) is adjusted for deviations such as the thickness, step, and curvature of the protective wall, and shaking and detachment are suppressed, thereby improving the reliability of the fastening part.

[0024] According to the present invention, a stable fixed point is provided that allows a worker's safety line to be attached while moving along a bridge inspection walkway, thereby preventing fall accidents and improving safety.

[0025] According to the present invention, the structure is fixed by hanging it on a protective wall, making installation and dismantling easy, thereby reducing work preparation time and increasing the implementation rate of safety measures.

[0026] Instead of temporary installations at each site, a bracket-based fastening system can standardize safety procedures and enhance ease of inspection. Brief explanation of the drawing

[0027] FIG. 1 is a perspective view showing an example of a worker safety securing device for entering a bridge inspection path according to the present invention. FIG. 2 is a drawing showing the state in which a worker safety securing device for entering the bridge inspection walkway of FIG. 1 is installed on the bridge guardrail. FIG. 3 is a perspective view showing the state in which a worker safety securing device for entering the bridge inspection path of FIG. 1 is installed on the bridge guardrail. FIG. 4 is a perspective view showing another example of a worker safety securing device for entering a bridge inspection path according to the present invention. FIG. 5 is a drawing showing the state in which a worker safety securing device for entering the bridge inspection path of FIG. 4 is installed on the bridge guardrail. FIG. 6 is a perspective view showing the state in which a worker safety securing device for entering the bridge inspection path of FIG. 4 is installed on the bridge guardrail. FIG. 7 is a perspective view showing another example of a worker safety securing device for entering a bridge inspection path according to the present invention. FIG. 8 is a drawing showing the state in which a worker safety securing device for entering the bridge inspection walkway of FIG. 7 is installed on the railing of a bridge constituting a bridge guardrail. FIG. 9 is a perspective view showing the state in which a worker safety securing device for entering the bridge inspection walkway of FIG. 7 is installed on the railing of a bridge constituting a bridge guardrail. FIG. 10 is a front view showing an example of a contact support member, FIG. 11 is a drawing showing a user wearing a safety belt having a safety line loop for attaching to a safety hook fastening part. Specific details for implementing the invention

[0028] Referring to FIGS. 1 to 11, the worker safety securing device (100) for entering a bridge inspection path according to the present invention is mounted so as to be detachably attached to a bridge guardrail (10) to provide a safety line fixing point for a worker (30), and has a mounting body (110), a contact support part (130), and a safety hook fastening part (150).

[0029] The mounting body (110) is formed to wrap around a part of the protective wall (10) and is a part that hangs on the protective wall (10). This mounting body (110) may be configured in a “C” shape as shown in FIGS. 1 to 3, or may have a hook shape with a part curved as shown in FIGS. 4 to 6.

[0030] Additionally, the mounting body (110) may be configured in a hook shape with a curved cross-section so that it can be mounted on a guardrail railing, such as a circular or elliptical one, which constitutes a protective wall (10), as shown in FIGS. 7 to 9, and in this case, a safety fixing pin (170) that is rotatably installed inwardly may be installed on the mounting body (110).

[0031] In addition, to ensure visibility during nighttime operation, a reflective tape or a light-emitting diode (LED) lamp, etc., may be provided on a part of the outer surface of the mounting body (110).

[0032] The contact support portion (130) is provided on the inner side of the mounting body (110) and is a part that contacts the wall surface (12) of the protective wall (10). The contact support portion (130) serves to prevent a concentrated load from being applied to one place by distributing the load applied to the mounting body (110) to two or more places on the protective wall (10).

[0033] In addition, the contact support member (130) is positioned to protrude inwardly from the inner surface of the mounting body (110), thereby also serving to prevent the mounting body (110) from tilting outward. This is because if the mounting body (110) tilts inward toward the protective wall (10), there is no risk of the mounting body (110) detaching from the protective wall (10).

[0034] The contact support member (130) is configured to include a cushioning pad made of any one of the elastic materials selected from rubber, urethane, and silicone to increase friction with the protective wall (10) and prevent damage to the structural surface of the protective wall (10). As shown in FIG. 10, a plurality of bracket-shaped protrusions (132) arranged to be pointed upward may be formed on this contact support member (130). When the bracket-shaped protrusions (132) receive downward force while in contact with the contact surface, both sides of the bracket-shaped protrusions (132) spread apart and are pressed against the wall surface to resist, so they do not slide downward.

[0035] These contact support portions (130) may be formed at an angle such that their thickness decreases as they go upward. This serves to prevent the mounting body (110) from rotating outward and releasing the locking state.

[0036] In particular, the contact support member (130) does not apply the load only to the upper part of the mounting body (110), but rather supports the load by contacting the inner and / or outer surface of the protective wall (110). This deviates from a mounting method that relies solely on the upper load, and by being supported together on the upper and side surfaces of the protective wall (10), it provides a strong physical restraint so that the mounting body (110) does not detach even when external lateral pressure or vibration occurs.

[0037] As can be seen in FIGS. 2 and 5, the contact support member (130) disperses stress that may be concentrated at a specific point, thereby preventing damage to the protective wall (10) itself and simultaneously performing the role of stably transmitting the load of the safety facility installed on top to the ground. This support principle enables the mounting body (110) to maintain a stable state without shaking, even amidst wind pressure from high-speed vehicles or mechanical vibrations at the construction site.

[0038] The safety hook fastening part (150) is formed on the outer surface of the mounting body (110) to allow the safety rope hook (182) of a worker (30) wearing a safety belt (180) as shown in FIG. 11 to be attached. One such safety hook fastening part (150) may be installed as shown in FIG. 1 to 3, or multiple may be installed as shown in FIG. 4 to 9. Preferably, the safety hook fastening part (150) may be installed on the outer lower part of the mounting body (110) and on the upper half of the mounting body (110).

[0039] The embodiment shown in FIGS. 1 to 3 has a width fixing part (112). The width fixing part (112) is provided on the mounting body (110) and is intended to allow the width of the mounting body (110) to be varied and fixed in correspondence with the thickness of the protective wall (10). That is, the mounting body (110) may be configured to allow width adjustment by being composed of an inner frame (110a) and an outer frame (110b) that are stacked on top of each other and slidably coupled. As illustrated, the width fixing part (112) may be configured to include a plurality of adjustment holes (112a) formed in the inner frame (110a) and the outer frame (110b), respectively, and a length adjustment pin (112b) that is coupled by passing through the adjustment holes (112a). Industrial applicability

[0040] The present invention has the potential to be used to manufacture a worker safety securing device for entering bridge inspection walkways. The worker safety securing device for entering bridge inspection walkways according to the present invention has the potential to be utilized not only on bridges but also at construction sites where work at height is performed. Explanation of the symbols

[0041] 10: Barrier 12: Wall surface 30: Worker 100: Worker safety device for entering bridge inspection walkways 110: Mounting body 112: Width fixing part 112a: Adjustment hole 112b: Length adjustment pin 130: Contact support 132: Hook-shaped projection 150: Safety hook fastening part 170: Fixing pin 180: Seatbelt 182: Safety line hook :

Claims

Claim 1 A mounting bracket that is detachably mounted on a guardrail of a bridge and provides a safety line fixing point for a worker, comprising: a mounting body formed to wrap around a part of the guardrail and capable of being hooked onto the guardrail; and a contact support provided on the inner side of the mounting body and in contact with the wall surface of the guardrail. The mounting body includes a safety hook fastening part formed on the outer surface of the mounting body to which a worker's safety rope hook is fastened, wherein the mounting body is in the shape of a hook with a curved cross-section in part so as to be mounted on a circular or elliptical guardrail, and a safety fixing pin is installed in the mounting body so as to be rotatable inward, and the contact support part includes a cushioning pad made of an elastic material selected from rubber, urethane, or silicone to increase friction with the protective wall and prevent damage to the surface of the structure, and a plurality of angle-shaped protrusions are formed on the contact support part so as to be pointed upward, and when the angle-shaped protrusions receive a downward force while in contact with the contact support part, both sides of the angle-shaped protrusions spread apart and are pressed against the wall surface to resist, thereby preventing the mounting body from rotating outward and releasing the locking state against the protective wall, and also so as to support the load by contacting the wall surface on the outer side of the protective wall rather than having the load applied only to the upper part of the mounting body. A worker safety device for entering a bridge inspection walkway, characterized by being formed with a slope such that the thickness decreases as it goes upward. Claim 2 delete Claim 3 delete Claim 4 delete Claim 5 delete Claim 6 delete Claim 7 A worker safety device for entering a bridge inspection walkway according to claim 1, characterized in that a reflective tape or a light-emitting diode (LED) lamp is provided on a part of the outer surface of the mounting body to ensure visibility during night work. Claim 8 delete Claim 9 delete Claim 10 A worker safety securing device for entering a bridge inspection walkway, characterized in that, in claim 1 or 7, the safety hook fastening part is installed in multiple numbers.

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