KR101667781B1

KR101667781B1 - Street lamp prop with enhanced durability

Info

Publication number: KR101667781B1
Application number: KR1020150065495A
Authority: KR
Inventors: 심승현
Original assignee: 심승현
Priority date: 2015-05-11
Filing date: 2015-05-11
Publication date: 2016-10-19

Abstract

The present invention relates to a street lamp post having enhanced durability and, more specifically, relates to a street lamp post having enhanced durability which is vertically installed in a road or a sidewalk to locate a lamp at a certain height. Moreover, the street lamp post having enhanced durability prevents the post from being bent or curved due to strong wind or external shocks by forming a reinforcement structure to prevent breakage and bending caused by an external force. The street lamp post having enhanced durability comprises: a hollow core pipe where one or more supports are arranged; and a main pipe layer formed on an outer wall of the core pipe through insert molding.

Description

Street lamp prop with enhanced durability "

More particularly, the present invention relates to a reinforced structure for preventing breakage or bending or warping due to an external force by supporting the lighting unit at a predetermined height by being installed standing on a road or a road. And a durability is ensured in such a manner that the phenomenon of bending or bending of the strut due to strong wind or external impact is suppressed.

Traditionally, street lamp supports have been manufactured in the form of molten metal in which cast iron is melted into casting molds. However, the cast iron is heavy in weight due to its nature, which causes transportation and construction difficulties.

In addition, wiring for power supply of the illumination lamp is disposed in the hollow portion of the strut, and the hollow portion of the cast-formed support is not smooth on the surface, so that it is not easy to lay out the wiring.

In addition, since the cast iron constituting the support has little ductility, malleability and high brittleness, that is, it is broken or broken. Therefore, cast iron made of cast iron The integrated streetlight pillar is easily broken by the impact caused by the vehicle or the outside and falls to the surroundings, which can cause a great accident, and reproduction and repair are hardly possible, which increases maintenance and repair costs.

In recent years, attempts have been made to manufacture street lamp supports by injecting molten metal in which aluminum alloy is dissolved instead of cast iron into molds.

The aluminum alloy is light in weight compared to cast iron because of its material properties, thus ensuring convenience in transportation and construction.

However, the aluminum alloy is excellent in ductility and malleability, and when it exceeds a certain height, the aluminum alloy is bent due to its own weight.

On the other hand, the inventor of the present invention has proposed a method of injecting molten metal dissolved in an aluminum alloy into a molding space after inserting and fixing reinforcing structural molds made of steel or stainless steel into molding spaces of molds through Korean Patent Registration No. 10-0740280 The method comprising the steps of:

The streetlight pillar formed by such a manufacturing method can have excellent durability while ensuring light weight in comparison with existing street lamp pillar due to the complementary action of steel and aluminum or aluminum alloy.

The streetlight pillar is also arranged to stand on the ground to perform a function of fixing the lighting unit to a predetermined height from the ground level. However, since the terminal pillar for controlling power supply of the lighting unit is also housed, The outer wall of the main body is locally cut to form a receiving port, and the terminal box is accommodated in the hollow portion of the receiving main body through the receiving port.

However, if the receiving port is formed so as to be opened by cutting the outer wall of the receiving body as described above, the portion where the receiving port is formed is relatively durable due to strong wind or external impact.

An object of the present invention which is devised to overcome the above problems is to provide a reinforcing structure for preventing breakage, bending, or warpage due to external force by supporting the lighting unit at a predetermined height, And is prevented from being bent or bent by a strong wind or an external impact.

The above object is achieved by the following constitutions provided in the present invention.

According to the present invention, there is provided a street-

And a main body having a hollow core tube and a core layer made of molten metal formed on an outer wall of the core tube through insert casting,
Wherein one or more supporting rods across the hollow portion are disposed in the core pipe so as to penetrate therethrough so that bending or warping of the supporting body is suppressed by one or more supporting rods supporting the inner wall of the supporting body across the hollow portion,
Wherein the end of the support rod penetrating the hollow portion of the core tube is joined to the outer wall of the core tube to be in a sealed state with the hollow portion of the core tube, The molten metal forming the support structure is inflow-cured into the inner surface of the support frame to form a multi-layer support structure,
A coil support member made of a steel wire material surrounding the outer wall of the support member is disposed on the support member across the hollow portion of the core member so as to stably support the inner wall of the hollow portion of the core member,
A gap space is formed between the outer wall of the spaced core pipe and the inner wall of the reinforcing pipe, and a clearance space is formed between the outer wall of the spaced core pipe and the inner wall of the reinforcing pipe, A molten metal flows into the space to form a main layer, and the alumina body has a three-layered support structure composed of a core tube, a main tube layer, and a reinforcing tube.

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A support piece is formed under the core tube forming the support body through the insert casting molding, and the main tube layer is formed on the surface of the support piece through the insert cast molding.

Further, the core tube and the support base are made of stainless steel or cast iron, and the molten metal is made of an aluminum alloy.

As described above, in the streetlight pillar according to the present invention, at least one support frame for supporting the inner wall of the hollow portion is disposed in the hollow portion of the pavement main body, so that bending or warping of the support can be suppressed by supporting action of the support frame.

Particularly, the support member has a tubular structure formed with an inner tubular path, and molten metal is infiltrated and cured in an insert casting molding process to form a multi-layer support structure, thereby stably supporting the hollow body formed on the support.

According to the present invention, the reinforcement pipe is disposed on the outer wall of the core tube forming the support body so as to allow the molten metal to flow and cure into the casting space formed between the core pipe and the reinforcement pipe, A three-layer support layer is formed by a reinforcing tube.

Therefore, the above-mentioned support body has a durability that is improved by the three-ply support layer, and consequently, the phenomenon of bending or bending due to strong wind or external impact can be stably prevented.

Fig. 1 shows the overall configuration of a streetlight including a durable streetlight suspension proposed in the preferred embodiment of the present invention,
2 and 3 are a perspective view and a sectional view showing a detail construction of a durable streetlight pillar proposed by the preferred embodiment of the present invention,
FIGS. 4 to 6 illustrate the manufacturing process of the durability of the streetlight pillar, which is proposed in the preferred embodiment of the present invention, in sequence.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown.

FIG. 1 shows the entire construction of a streetlight including a durable streetlight pillar proposed by the present invention as a preferred embodiment. FIGS. 2 and 3 show the durability proposed in the preferred embodiment of the present invention FIGS. 4 to 6 illustrate a perspective view and a cross-sectional view, respectively, showing a detailed configuration of a streetlight pillar for a durability proposed in the preferred embodiment of the present invention. will be.

As shown in FIG. 1, the durable street lamp support 1 proposed in the preferred embodiment of the present invention is provided with a lighting unit 100 which is provided standing upright on a road or a ledge and secures an ambient illuminance through lighting, And is fixed at a height.

1 to 3, the strut 1 includes a main body having a supporting piece 11 fixedly attached to the ground at a lower end thereof. The supporting piece 11 has an anchor (not shown) It is fixed tightly to the ground through the bolts and fixes the main body standing on the ground.

In this embodiment, a receiving opening 10a is formed on the outer wall of the main body constituting the strut 1, and a terminal box (not shown) for controlling power supply of the illuminating unit 100 through the receiving opening 10a ).

According to the present invention, the main constituent of the strut (1) is constituted by a multilayer support structure in which metal layers of different types are formed instead of a single layer, so that the laminated metal layers have mutual complementary durability, So that breakage, bending, or occurrence of warpage of the support body is suppressed.

As shown in FIGS. 2 to 6, the support body is formed by laminating a hollow core pipe 10 and the core pipe 10 on the outer wall of the core pipe 10 through insert casting molding, (20).

The reinforcing pipe 30 is disposed on the surface of the core pipe 10 in a spaced manner and then the core pipe 10 and the reinforcing pipe 30 are insert- And the main tube layer 20 and the reinforcing tube 30 are laminated in a concentric structure so as to have a three-ply support structure.

4, the reinforcing pipe 30 is spaced apart from the outer wall of the core pipe 10 through the gap bushing 31 so that the outer wall of the reinforcing pipe 10, which is arranged in a concentric structure, (S) spaced apart from the inner wall of the partition wall (30).

5 and 6, the core tube 10 having the reinforcing tube 30 spaced apart therefrom is inserted into the molding space 210 of the mold 200, Molten metal injected along the bath flow is introduced and cured in the gap space S formed between the inner walls of the reinforcing pipe 30 so that molten metal is injected between the outer wall of the pipe 10 and the inner wall of the reinforcing pipe 30 So that a cured main layer 20 is formed.

According to the present embodiment, the core pipe 10 and the reinforcing pipe 30 are made of a stainless steel pipe or a cast iron pipe having a thickness of 0.5 mm to 5 mm, while having good stiffness and toughness.

The main layer 20 to be cast and molded between the outer wall of the core tube 10 and / or the outer wall of the core tube 10 and the inner wall of the reinforcing tube 30 is made of an aluminum alloy having a thickness of 3 mm to 10 mm.

According to the present invention, the reinforcement pipe 30 is entirely covered with the outer wall of the core pipe 10 so as to complement the overall rigidity of the main body including the reinforcement pipe.

However, it is possible to locally arrange the reinforcing pipe (30) only at the forming position of the receiving port formed in the support member, thereby reinforcing the strength of the weak portion.

Therefore, as shown in FIGS. 2 and 3, the support body includes a core tube 10 made of stainless steel or cast iron, a reinforcing tube 30, and a main layer 20 made of an aluminum alloy to form a three-layer support structure A phenomenon of bending or bending due to strong wind or external impact due to mutual reinforcement can be suppressed.

2 and 3, the receiving part 10a, which is formed by cutting the outer wall of the receiving part 10a through a post-cutting process, is opened to open the receiving part 10a, Form vulnerable portions that are relatively vulnerable to strong winds or external impacts.

In this embodiment, as shown in FIGS. 2 to 6, a plurality of grooves are formed in the core tube 10 forming the multi-layered papers main body through the insert casting molding, one (1) crossing the hollow portion 10b of the core tube 10, The bending occurrence of the core tube 10 and the main body including the core tube 10 is prevented by the support base 40 which penetrates through the support base 40 and supports the inner wall of the hollow portion 10b across the hollow portion 10b .

6, a coil supporter 43 made of a steel wire material is disposed on the outer wall of the supporter 40 across the hollow portion 10b of the cofferdam 10, 10b) inner wall can be supported more stably.

Like the core pipe 10 and the reinforcing pipe 30, the support 40, which crosses the hollow portion 10b of the core pipe 10, is made of stainless steel having a thickness of 0.5 mm to 5 mm Pipe or cast iron pipe.

The end of the support base 40 penetrating the hollow portion 10b of the core tube 10 is connected to the inner surface of the core pipe 10 by welding or the like so as to be hermetically sealed with the hollow portion 10b.

6, molten metal that forms the main layer 20 through the insert casting is introduced and cured along the inner circumferential path 41 of the support 40, and the molten metal forming the inner circumferential path 41 The support base 40 is supplemented with the rigidity by the molten metal to be inflow-cured, and the stable inner diameter support including the core tube 10 is achieved.

Since the shape of the hollow body is stably maintained by disposing the support base 40 on the hollow portion 10b of the support body as in the present embodiment, the phenomenon that the support body is bent, broken, or bent due to strong wind or external impact is prevented In particular, the support base 40 forms a multi-layer support structure by molten metal flowing through the inner surface conduit 41 and has stable durability.

As shown in FIGS. 3 to 6, a support piece 11 having at least one through hole 11a formed therein is formed in the lower portion of the core tube 10 forming the support body through the insert casting molding, In the embodiment, a tubular fixed bush 12 having a fixing hole 12a penetrating through the upper and lower portions is inserted into each of the assembly holes 11a, and then fixed through welding or the like.

At this time, the fixing hole 12a of the fixed bushing 12 is filled with the molding sand S 'so that the molten metal flows into the fixing hole 12a of the fixed bushing 12 and hardens during the insert molding process prevent.

4, the operator inserts an assembly hole 11a into the support piece 11 in accordance with the fixing position of the anchor bolt fixed to the ground, assembles and fixes the fixing bush 12 to the assembly hole 11a, Ensure the penetration path of the anchor bolt.

According to this configuration, the position of the assembly hole 11a formed through the perforations in the support piece 11 itself is changed without the hassle of changing the molding space of the mold according to the fastening standard of the anchor bolts.

Then, the stationary bush 12 is assembled and fixed to the assembled hole 11a formed by the modification, so that a fixed penetration path of the anchor bolt can be ensured.

Therefore, it is possible to mold the main body having various fixing standards through a single mold without changing the molding space of the mold according to the fixing standard of the support through each anchor bolt.

As shown in FIG. 4, the assembling holes 11a are formed at the lower end of the core pipe 10 made of a stainless steel pipe or a cast iron pipe, And the support piece 10 formed so as to be fixed through welding.

At this time, the position of the assembly hole 11a is set according to the fixing standard fixed to the ground, and the operator forms the assembly holes 11a in the support piece 11 according to the fixed standard, (12) is inserted and welded.

At this time, the operator fills the fixing hole 12a of the fixed bushing 12 with the molding sand S 'so that the molten metal flows into the fixing hole 12a of the fixed bushing 12 during the insert molding process .

A reinforcing pipe 30 is disposed on the outer wall of the core pipe 10 through a gap bushing 31 so that a gap space S is formed between the outer wall of the core pipe 10 and the inner wall of the reinforcing pipe 30 .

A tubular support 40 is formed in the hollow portion 10b of the core 10 so as to penetrate the inner tubular passage 41 and then the end of the support 40 is welded to the outer wall of the core 10 So as to prevent the molten metal from flowing into the hollow portion 10b of the core tube 10 during the insert molding process to be described later.

The core tube 10 having the support pieces 11 and the reinforcing tube 30 is inserted into the molding space 210 of the mold 200 as shown in Fig. When the molten metal is injected into the molding space, the molten metal flows into the gap space S formed between the outer wall of the core tube 10 and the outer wall of the core tube 10 and the inner wall of the reinforcing tube 30, 11) to form a main layer (20).

The molten metal flowing into the molding space 210 of the mold 200 along the bath flow is introduced along the inner tubular path 41 of the support 40 across the hollow portion 10b of the core tube 10, And the support 40 that crosses the hollow portion 10b of the core tube 10 ensures a stable durability by the molten metal which is hardened by the inflow along the inner surface conduit 41. [

When the molding of the supporting body is completed through the insert casting molding, the molded body is demolded from the mold 200, and the operator discharges the molding sand filled in the fixing hole 12b of the fixed bushing 12 So that the fixing hole 12a of the stationary bush 12 penetrates.

As shown in FIG. 3, the outer wall of the ground body is locally cut so that the receiving opening 10a, which is the path for the entry / exit of the terminal box, is opened .

1. Street lamp holder
10. Shaft 10a. The receiving opening
10b. Hollow portion 11. support piece
11a. Assembly 12. Fixing Bush
12a. Fixed ball
20. Main layer 30. Reinforcement tube
31. Gap Bush 40. Support
41. To my scenery 42. Casting reinforcement
43. Coil spring
100. Lighting unit
200. Casting mold 210. Molding space
S. Clearance space

Claims

And a main body having a hollow core tube and a core layer made of molten metal formed on an outer wall of the core tube through insert casting,
Wherein one or more supporting rods across the hollow portion are disposed in the core pipe so as to penetrate therethrough so that bending or warping of the supporting body is suppressed by one or more supporting rods supporting the inner wall of the supporting body across the hollow portion,
Wherein the end of the support rod penetrating the hollow portion of the core tube is joined to the outer wall of the core tube to be in a sealed state with the hollow portion of the core tube, The molten metal forming the support structure is inflow-cured into the inner surface of the support frame to form a multi-layer support structure,
A coil support member made of a steel wire material surrounding the outer wall of the support member is disposed on the support member across the hollow portion of the core member so as to stably support the inner wall of the hollow portion of the core member,
A gap space is formed between the outer wall of the spaced core pipe and the inner wall of the reinforcing pipe, and a clearance space is formed between the outer wall of the spaced core pipe and the inner wall of the reinforcing pipe, Wherein a molten metal flows into the space to form a main layer, and the main body forms a three-ply support structure composed of a core pipe, a main pipe layer, and a reinforcing pipe.

The method as claimed in claim 1, wherein a support piece is formed on a lower portion of the core tube forming the support body through the insert casting molding, and the main tube layer is formed on the surface of the support piece through the insert casting molding. Secured streetlight holding.

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The durability lamp of claim 1, wherein the core and support are made of stainless steel or cast iron, and the main layer is made of aluminum alloy.