Safety guards for preventing corrosion of utility poles
By using the dual extrusion method, the colored plastic identification belt guardrail is formed by combining the different melting points and shapes of the substrate and identification belt to form a non-contact ventilation runner and a buckle-free installation method, which solves the corrosion, installation difficulties and high maintenance costs of existing pole guardrails during installation and use, and achieves the effect of efficient corrosion prevention, simplification of installation and reduction of maintenance costs.
Patent Information
- Application Number
- JP2023571480
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2021-07-02
- Filing Date
- 2022-06-29
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2042-06-29
AI Technical Summary
During the installation and use of existing pole guardrails, there are problems such as corrosion, installation difficulties, color discoloration and damage caused by external environment, resulting in safety hazards and high maintenance costs.
The colored plastic identification belt guardrail manufactured by the dual extrusion method combines the different melting points and shapes of the substrate and identification belt. Through the physical bonding technology of thermally expanded particles, a non-contact ventilation runner and a buckle-free installation method are formed to reduce moisture retention and external environmental impact.
It realizes efficient corrosion protection of the telephone pole guardrail, simplifies the installation process, improves the weather resistance and visibility of the guardrail, reduces maintenance costs, and maximizes the use of waste plastic for recycling.
Smart Images

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Abstract
Description
[Technical field]
[0001] The present invention relates to a safety guard for preventing corrosion of utility poles, and more specifically, to a safety guard for preventing corrosion of utility poles that is installed on utility poles to ensure the safety of drivers and pedestrians as well as to prevent corrosion of the utility poles. [Background technology]
[0002] Typically, utility poles are support structures erected on the ground to install electrical distribution lines or telephone lines in order to provide power and communication services. In most cases, they are installed in areas with high traffic, such as roadsides, and are formed as cylindrical supports made of high-strength materials such as concrete.
[0003] Such utility poles, except in special cases, are installed along roads and exposed to people and surrounding equipment in order to facilitate wiring and maintenance work. In particular, there is a problem in that the danger of vehicle collisions is always present at bends in the road, but there is no significant protection against vehicle collisions.
[0004] For this reason, previously disclosed Korean Patent Publication No. 10-2012-0033865 previously disclosed a technology for a protection device for protecting a utility pole, which includes a support band having a pair of bands that symmetrically wrap around and connect to the utility pole, and a pair of bands made of a hard and soft mixed material that symmetrically wrap around and connect to the utility pole on the outside of the support band.
[0005] In addition, Korean Utility Model Publication No. 20-2009-0007822, which is another prior art, previously disclosed a safety guard made of multiple protective units that include a buffer section, a cover section that encases the buffer section, and a reflective section that is bonded to one side of the cover section, and are connected to each other with a cuttable region in between.
[0006] However, the above-mentioned conventional technology, which is intended to reduce the risk of collision by being installed on structures including utility poles, has many problems as described below.
[0007] First, when the cover is tightly attached to the utility pole, moisture continues to remain inside due to the water film phenomenon, which corrodes the concrete utility pole and the iron core as shown in Figure 8a, weakening the utility pole and causing it to collapse, leading to a serious safety problem.
[0008] Secondly, it takes a lot of time and effort to install the bands to secure the cover. In particular, as shown in FIG. 8b, as the band connection parts protrude in a knot shape, the ends are exposed to the outside in a sharp manner, and there have been many cases where pedestrians have been injured.
[0009] Thirdly, in the case of existing safety guards, the identification band is painted on. In this case, when exposed to the external natural environment such as sunlight, rain, and temperature differences for a long period of time, the exterior including the luminous display and reflective band easily discolors and corrodes, as shown in Fig. 8c, resulting in a large maintenance cost. In addition, local governments with insufficient budgets are unable to replace them immediately, and various other problems arise, such as damage to the surrounding scenery. [Prior art documents] [Patent documents]
[0010] [Patent Document 1] Korean Patent Publication No. 10-2012-0033865 [Patent Document 2] Korean published utility model no. 20-2009-0007822 Summary of the Invention [Problem to be solved by the invention]
[0011] The present invention has devised a new technology to solve the above-mentioned problems of the conventional technology, and the problem to be solved by the invention is to provide a safety guard for preventing corrosion of utility poles, which can maximize the recycling ratio of waste plastics to reduce costs and be environmentally friendly, and which can prevent corrosion and breakage of utility poles due to moisture by forming a non-contact ventilation flow path between the safety guard and the utility pole.
[0012] Another object of the present invention is to provide a safety guard for preventing corrosion of utility poles, in which an identification band is formed to a predetermined thickness by a double extrusion method using colored plastic to prevent discoloration, and which can be installed without knots when the protective band is installed on the utility pole by engaging and fastening the fastening band with the hook blade and hook hole. [Means for solving the problem]
[0013] As a specific means for solving the above-mentioned problems of the invention, the present invention provides a safety guard for preventing corrosion of utility poles, which comprises a base plate portion 10 formed into a sine wave curved surface 12 with inward and outward curved portions 12a, 12b alternately repeated on the inner surface, an identification band portion 20 formed alternately and repeatedly in different colors on the outer surface of the base plate portion 10, a side plate portion 30 formed at both ends of the base plate portion 10 and having hook holes 32 formed therein, and a fastening band 40 provided with a plurality of hook blades 42 for fitting into and fastening the hook holes 32 of the side plate portion 30, and the base plate portion 10 is characterized in that the outward curved portion 12b and the outer peripheral surface of the utility pole 1 are separated from each other to form a non-contact ventilation flow path 12c when the inward curved portion 12a is locally grounded to the outer peripheral surface of the utility pole.
[0014] In this case, the identification band portion 20 is formed by extruding colored plastic so that it overlaps the surface of the base plate portion 10, and the melting points of the recycled plastic forming the base plate portion 10 and the colored plastic forming the identification band portion 20 are different from each other, and the base plate portion 10 is extruded into a predetermined cross-sectional shape by a main extruder, and the identification band portion 20 is extruded to a thickness thinner than that of the base plate portion 10 by an auxiliary extruder.
[0015] In addition, a large number of particles 50 that expand or explode when heated to a predetermined temperature or higher are distributed on the bonding surface between the base plate portion 10 and the identification band portion 20, and the particles 50 are heated and expanded or exploded during the extrusion molding process, so that the surfaces of the base plate portion 10 and the identification band portion 20 are physically bonded to each other.
[0016] Furthermore, an inner uneven line 14 is formed on the surface of the base plate portion 10, an identification band portion 20 having a uniform thickness is formed on the surface of the inner uneven line 14, and an outer uneven line 24 having the same pattern as the inner uneven line 14 is formed on the identification band portion 20.
[0017] Furthermore, the side plate portion 30 is characterized in that a concave arch-shaped guide curved surface 34 is formed on the inner peripheral surface, and the guide curved surface 34 guides the fastening band 40, which is pulled in through the hook hole 32, so that it is bent and transported toward the utility pole 1.
[0018] Furthermore, the installation tension of the fastening band 40 is adjusted by a joint tool 46, and the joint tool 46 is characterized in that it comprises a joint plate 46a supported on the outer peripheral surface of the fastening band 40, a pair of fork blades 46b having one end connected to the joint plate 46a and the other end extending to the inner peripheral surface of the fastening band 40 and engaged with the hook blade 42, and a handle 46c connected to the joint plate 46a.
[0019] Furthermore, the fastening band 40 is formed in two parts, one end of which is inserted into the hook hole 32 of the side plate portion 30, and the other end of which is fastened by a clamp 45 while forming an overlapping portion 44, and the overlapping portion 44 is characterized in that locking protrusions 44a are formed on corresponding surfaces so as to engage with the embossed structure for locking and fastening. Effect of the Invention
[0020] According to the specific means for solving the above-mentioned problems, the present invention not only maximizes the recycling ratio of waste plastics, thereby reducing costs, but also is environmentally friendly.
[0021] In addition, a non-contact ventilation passage is formed between the safety guard and the utility pole, thereby preventing accidents such as corrosion or breakage of the utility pole due to moisture.
[0022] Furthermore, since the identification band portion is formed to a specified thickness by double extrusion molding using colored plastic, there is no loss of visibility due to wear, and since it has excellent weather resistance, it can maintain vivid visibility for a long period of time.
[0023] In particular, the fastening band is installed without knots by engaging and fastening the hook blade and hook hole, making it difficult for anyone other than those involved to untie the fastening, and the expected effects are great, such as preventing safety accidents such as pedestrians being injured by protruding knots while moving around. [Brief description of the drawings]
[0024] [Figure 1] FIG. 1 is a diagram showing a preferred embodiment of a safety guard for preventing corrosion of utility poles provided by the present invention. [Diagram 2] FIG. 2 is a diagram showing the state in which the safety guard for preventing corrosion of utility poles of the present invention is installed on a utility pole. [Diagram 3] A diagram showing the joining state between the base plate portion and the identification band portion of the safety guard for preventing corrosion of a utility pole. [Figure 4]An enlarged view of the identification band of a safety guard for preventing corrosion of utility poles. [Diagram 5] FIG. 13 is a diagram showing the fastening structure of a fastening band of a safety guard for preventing corrosion of utility poles. [Figure 6] FIG. 13 is a diagram showing a joint tool for fastening bands of a safety guard. [Figure 7] FIG. 13 shows a clamp for a fastening band of a safety guard. [Figure 8] Drawings and photographs showing conventional safety guards. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0025] The technical terms used in this specification are terms selected in consideration of the functions in the embodiments, and the meaning of the terms may vary depending on the specific embodiment of the invention. Throughout the specification, when a part is "connected (connected, contacted, coupled)" to another part, this includes not only the case where the part is "directly connected (connected, contacted, coupled)" but also the case where the part is "indirectly connected" with another member therebetween. In addition, the terms "upper side", "lower side", and "front-rear direction" used in the following description are defined based on the drawings, and these terms do not limit the shape and position of each component.
[0026] The present invention will be described in more detail below with reference to the specific embodiments in the accompanying drawings. Fig. 1 is a diagram showing a preferred embodiment of a safety guard for preventing corrosion of utility poles provided in the present invention, and Fig. 2 is a plan view showing a state in which the safety guard for preventing corrosion of utility poles is installed on a utility pole.
[0027] The present invention relates to a safety guard for preventing corrosion of utility poles, which can maximize the recycling ratio of waste plastics to reduce costs and be environmentally friendly, and which forms a non-contact ventilation flow path between the safety guard and the utility pole to prevent corrosion and breakage of the utility pole due to moisture. The main components are roughly comprised of a base plate portion 10, an identification band portion 20, a side plate portion 30, and a fastening band 40.
[0028] First, the base plate portion 10 according to the present invention is extruded to have a predetermined cross-sectional shape, and is cut to a predetermined length in consideration of the length of the utility pole, the installation position, and the environment.
[0029] The inner peripheral surface of the base plate portion 10 is formed into a sine wave curved surface 12 in which inward and outward curved portions 12a, 12b are alternately repeated. Therefore, when the base plate portion 10 is installed so as to enclose the utility pole 1, a non-contact ventilation flow path 12c is formed by the sine wave curved surface 12, as shown in the enlarged view of FIG.
[0030] At this time, in order to ensure smooth drainage, the non-contact air passage 12c forms a sine wave curved surface 12 with a height of 0.2 mm or more on a horizontal cross section.
[0031] With the above-described structure, with the inwardly curved portion 12a of the base plate portion 10 being locally grounded to the outer peripheral surface of the utility pole, the outwardly curved portion 12b of the base plate portion 10 forms a non-contact ventilation flow path 12c in which the outwardly curved portion 12b is separated from the outer peripheral surface of the utility pole 1 by a distance of 0.2 mm or more.As a result, in rainy weather, rainwater is quickly discharged into the non-contact ventilation flow path 12c and air is easily circulated, so that the base plate portion 10 and the utility pole 1 are always kept dry, thereby preventing accidents such as corrosion and breakage of the utility pole 1 due to moisture.
[0032] The base plate portion 10 is formed by extruding recycled plastic, and the identification band portion 20 is formed by extruding colored plastic so as to overlap the surface of the base plate portion 10 .
[0033] The identification band portion 20 according to the present invention is formed alternately and repeatedly on the surface of the base plate portion 10 in different colors to facilitate easy identification by the driver.
[0034] As an example, the identification band portion 20 is formed with yellow and black areas alternately arranged as shown in FIG. 1, in which the yellow areas are narrower than the black areas (e.g., 70-80 mm for the black areas and 40-60 mm for the yellow areas), a danger warning message is screen-printed in the yellow area located at the very center, and reflective paper is attached to the adjacent yellow areas to enhance the driver's identification during daytime and nighttime driving.
[0035] Meanwhile, the base plate portion 10 is extruded into a predetermined cross-sectional shape by the main extruder, and the identification band portion 20 is extruded into a thickness thinner than the base plate portion 10 by the auxiliary extruder, so that the safety guard is manufactured by a multiple extrusion method.
[0036] In this case, the melting points of the recycled plastic forming the base plate portion 10 and the colored plastic forming the identification band portion 20 are different from each other, and even among the colored plastics, the melting points of the yellow and black regions are also different from each other. For example, the melting point of the colored plastic may be set even lower.
[0037] If the melting points of the resins are the same, the boundary between the yellow area and the black area may be unclear, or the thickness of the identification strip portion 20 laminated on the base plate portion 10 may not be uniform.
[0038] FIG. 3 is a schematic diagram showing the bonding state between a base plate portion and an identification band portion of a safety guard for preventing corrosion of utility poles according to one embodiment of the present invention, in which a large number of particles 50 that expand or explode due to heat above a predetermined temperature are distributed on the bonding surface between the base plate portion 10 and the identification band portion 20.
[0039] During the extrusion molding of the base plate portion 10 and the identification band portion 20, the particles 50 are heated and exploded to physically bond the surfaces of the base plate portion 10 and the identification band portion 20, thereby firmly maintaining the integrity of the double extrusion between the different materials.
[0040] In this way, the identification band 20 is double extrusion molded on the base plate 10, and the identification band 20 is formed with a predetermined thickness (0.2 to 0.4 mm) from colored plastic (PVC), so there is no wear and tear on visibility. In addition, even if it is exposed to the external natural environment, including sunlight, snow, rain, and temperature differences, it does not discolor or lose color, so it has excellent weather resistance, and therefore has the advantage of always ensuring a clear field of vision and ensuring safe driving. In addition, since the base plate 10 is formed from recycled plastic (waste plastic), it has an environmentally friendly effect of reducing manufacturing costs through natural recycling, as well as contributing to carbon neutral policies through waste recycling.
[0041] FIG. 4 is an enlarged structural diagram of the identification band of a safety guard for preventing corrosion of utility poles, where FIG. 4a is a structural diagram showing the black area of the identification band 20, and FIG. 4b is a structural diagram showing the yellow area of the identification band 20.
[0042] An inner uneven line 14 is formed on the surface of the base plate portion 10, and an identification band portion 20 is formed on the surface of the inner uneven line 14. At this time, the identification band portion 20 is formed to a uniform thickness, so that an outer uneven line 24 is formed on the surface of the identification band portion 20.
[0043] That is, during the process of extruding the base plate portion 10, an inner uneven line 14 is formed on the surface by an extruder die, and then, while the identification band portion 20 is extruded onto the surface of the inner uneven line 14, an outer uneven line 24 having the same shape and pattern as the inner uneven line 14 is formed.
[0044] The inner and outer uneven lines 14, 24 configured in this manner have the advantage that when the base plate portion 10 is wrapped around the utility pole 1 and installed, the flexibility to deform into a circular shape is improved, and the area of attachment of illegally attached materials such as flyers to the surface is reduced, making them easier to peel off.
[0045] FIG. 5 is a configuration diagram showing the fastening structure of a fastening band of a safety guard for preventing corrosion of a utility pole according to one embodiment of the present invention.
[0046] The side plate portion 30 according to the present invention is formed on both ends of the base plate portion 10, and each end is formed with a hook hole 32. The identification band portion 20 having a predetermined color can be formed on the outer circumferential surface of the side plate portion 30 by a double injection method.
[0047] 5, the side plate portion 30 has a concave arch-shaped guide curved surface 34 formed on the inner peripheral surface in a planar cross section, and the outer surface also has a curved shape as a whole so that the amount of outward protrusion is minimized. The guide curved surface 34 guides the end of the fastening band 40 pulled in through the hook hole 32 so that it is bent toward the utility pole 1 and transported.
[0048] This allows the fastening band 40 to ride on the guide curved surface 34 of the side plate portion 30 and bend inward while being guided so that it can be inserted quickly without getting caught, thereby enabling the fastening operation to be performed effectively, and also allows the fastening band 40 to be tightly attached to the inside of the hook hole 32, thereby firmly maintaining the binding force between the hook blade 42 and the hook hole 32.
[0049] The fastening band 40 according to the present invention is made of a synthetic resin material having flexibility and elasticity, and has a plurality of hook blades 42 obliquely protruding from one surface thereof so as to be fitted into the hook holes 32 of the side plate portion 30 for fastening.
[0050] 1, the hook blades 42 are formed in opposite directions in regions on both sides of the fastening band 40. That is, the hook blades 42 arranged at both ends of the fastening band 40 are formed to form acute angles with the fastening band, and are provided so that, with one hook blade 42 fastened to the hook hole 32 of the side plate portion 30, the other fastening band 40 is fitted into the hook hole 32 of the opposite side plate portion 30 for fastening.
[0051] In this way, the safety guard can be firmly attached to the support pole without knots by engaging and fastening the fastening band 40 between the hook blade 42 and the hook hole 32, and since the fastening part is not exposed to the outside, the fastening cannot be released by anyone other than the relevant personnel.
[0052] Another advantage is that it is possible to prevent safety accidents, such as pedestrians being injured while moving around due to the existing metal knots protruding outwards and looking unsightly.
[0053] FIG. 6 is a structural diagram showing a joint tool for a safety guard, which is used to easily adjust the tension of the fastening band 40 so that the safety guard can be securely fastened to the utility pole.
[0054] Specifically, the joint tool 46 comprises a joint plate 46a supported on the outer peripheral surface of the fastening band 40, a pair of fork blades 46b having one end connected to the joint plate 46a and the other end extending to the inner peripheral surface of the fastening band 40 and engaged with the hook blade 42, and a handle 46c connected to the joint plate 46a.
[0055] In order to improve the pulling force of the fastening band 40 in use, the handle 46c is formed so as to cross the joint plate 46a rather than being disposed in a straight line.
[0056] When examining the usage state, with the fastening band 40 inserted between the joint plate 46a and the fork blade 46b, the hook blade 42 is fitted onto the fork blade 46b, and the handle 46c is pulled outward in the direction of the arrow shown in the figure, the fastening band 40 is easily pulled by the principle of leverage and can easily enter into the hook hole 32, so that the safety guard can be firmly fastened to the utility pole without loosening.
[0057] FIG. 7 is a configuration diagram showing an embodiment of a fastening band clamp in the safety guard for preventing corrosion of a utility pole of the present invention.
[0058] In this case, the fastening band 40 is formed in two parts, one end of which is fitted into the hook hole 32 of the side plate portion 30, and the other end of which is fastened by a clamp 45 while forming an overlapping portion 44.
[0059] The overlapping portions 44 have locking protrusions 44a formed on their corresponding surfaces so as to be engaged with the embossed structures for locking and binding.
[0060] At this time, the clamp 45 has holes large enough to accommodate all of the overlapping portions 44, and a tightening bolt is provided on one side which is fastened by a screw type fastening. With the overlapping portions 44 fitted into the clamp 45, when the tightening bolt is tightened to bring the overlapping portions 44 into tight contact, the locking protrusions 44a engage to maintain a firm bond.
[0061] As described above, the most preferred embodiment of the present invention has been described in the detailed description of the present invention, but the present invention is not limited to this embodiment, and various modifications can be made without departing from the technical scope of the present invention. Therefore, the scope of protection of the present invention should not be limited to the above embodiment, but should be extended to the technologies of the claims to be described later and equivalent technical means. [Industrial Applicability]
[0062] The safety guard provided in the present invention forms a non-contact ventilation flow path between the safety guard and the utility pole, preventing accidents such as corrosion and breakage of the utility pole due to moisture, and provides excellent weather resistance and visibility, making it highly applicable industrially.
Claims
1. A base plate portion (10) having an inner peripheral surface formed into a sine wave curved surface (12) in which inward and outward curved portions (12a, 12b) are alternately repeated; An identification band portion (20) formed alternately and repeatedly in different colors on the outer surface of the base plate portion (10); A side plate portion (30) formed at both ends of the base plate portion (10) and having hook holes (32) formed therein; a fastening band (40) having a plurality of hook blades (42) for being fitted into the hook holes (32) of the side plate portion (30) for fastening; Equipped with The base plate portion (10) is provided such that, with the inwardly curved portion (12a) being locally grounded to the outer circumferential surface of the utility pole, the outwardly curved portion (12b) is separated from the outer circumferential surface of the utility pole (1) to form a non-contact ventilation flow path (12c), The side plate portion (30) has a concave arch-shaped guide curved surface (34) formed on its inner peripheral surface, and the guide curved surface (34) guides the end of the fastening band (40) pulled in through the hook hole (32) so that it is bent toward the utility pole (1) and fitted into the utility pole (1).
2. 2. The safety guard for preventing corrosion of utility poles according to claim 1, characterized in that the installation tension of the fastening band (40) is adjusted by a joint tool (46), the joint tool (46) comprises a joint plate (46a) supported on the outer circumferential surface of the fastening band (40), a pair of fork blades (46b) having one end connected to the joint plate (46a) and the other end extending to the inner circumferential surface of the fastening band (40) and engaged with the hook blade (42), and a handle (46c) connected to the joint plate (46a), and the hook blade (42) is fitted into the fork blade (46b) with the fastening band (40) inserted between the joint plate (46a) and the fork blade (46b), and when the handle (46c) is pulled outward, the fastening band (40) is pulled and pulled into the hook hole (32).
3. The fastening band (40) is formed in two parts, one end of which is inserted into the hook hole (32) of the side plate (30) and the other end of which is fastened by a clamp (45) while forming an overlapping portion (44), and the overlapping portion (44) is formed with locking protrusions (44a) on corresponding surfaces so as to engage with the embossed structure to lock and fasten. The safety guard for preventing corrosion of utility poles as described in claim 1.
Citation Information
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