KR101741070B1

KR101741070B1 - grating

Info

Publication number: KR101741070B1
Application number: KR1020150064571A
Authority: KR
Inventors: 신응선
Original assignee: 신응선
Priority date: 2015-05-08
Filing date: 2015-05-08
Publication date: 2017-05-29
Also published as: KR20160131669A

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grating used as a lining board for a walkway, a manhole, a drainage hole,
A bearing bar formed at a position where the engaging portion is bent in a zigzag shape, a fixing bar formed at a position corresponding to the engaging portion of the bearing bar and having a guide hole having an open top, And a side bar welded to both ends of the bearing bar and the fixing bar.
As described above, according to the present invention, a plurality of bearing bars having a zigzag shape are combined with a fixed bar fitting method or a sliding guide fitting method, so that the manufacturing process is very easy and the production cost can be minimized. Accordingly, since it can be assembled and installed immediately in the field, it is possible to improve the work efficiency.

Description

Grating {grating}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to gratings used as walking boards for gates such as ventilating holes, manholes, drain holes, and civil engineering works, buildings, and plants, and more particularly to gratings used as walking boards in zigzag The present invention relates to a grating capable of easily manufacturing a grating by installing a bearing bar on each of the fixing bars.

Steel gratings are installed on roads and bridges to discharge rainwater and sewage.

Generally, the lattice structure is called 'steel grating', and is widely used as a cover for a ventilation hole, a manhole, a drainage hole, a walking platform for civil engineering and building structures, and a plant. In order to improve the strength and lightness of the lattice structure, the lattice structure is manufactured by joining a steel horizontal beam and a vertical bar in a lattice shape. The lattice structure can be variously changed in shape or size depending on the application.

There is a lattice structure provided on a ventilation hole for circulating the inside air of a subway or the like to the atmosphere. In another example, there is a lattice structure that is installed in an underground structure in which power lines are wired and installed in a power port that also discharges internal heat to the outside by ventilation. Such ventilation holes and power sheds (hereinafter referred to as "installation sheds") are deeply formed, and most of the ventilation holes and power sheds are installed on pedestrian roads, so that pedestrians step on a grid structure covered on the top of the installation shed. Therefore, the lattice structure should have good durability to prevent deformation and damage even if it is used for a long time with sufficient strength to withstand the load to prevent the safety accident of the pedestrian.

The steel grating as described above has been variously introduced in the prior art, and "Grid structure" is introduced in Korean Utility Model Registration No. 153153 (registered on May 4, 1999) among the above technologies.

Wherein the grid structure is constituted by a plurality of horizontal beams arranged at predetermined intervals and having recesses formed in the longitudinal direction on both sides thereof and a plurality of vertical bars fixed to intersect each of the horizontal beams in a crossing manner, A plurality of shielding plates which are installed to shield a space between the beams, a plurality of ventilation holes formed in the shielding face, and a bent portion bent downward from both ends of the shielding face to be inserted between mutually adjacent grooves; And a plurality of fixing clips for restricting the blocking plate from moving up and down and supporting the blocking plate such that the blocking face is located at the upper stepped portion of the groove.

However, since the lattice structure must be manually inserted into the space between the transverse beam and the transverse beam, the lattice structure must be manually fixed by using the fixing clip, so that the manufacturing process is inconvenient, There is a disadvantage in that the cost of material is consumed because the height of the blocking plate has to be made as high as the height of both sides of the horizontal beam.

Registered utility model No. 153153 entitled "Grid Structure"

In order to solve the above-mentioned problems, it is an object of the present invention to provide a method of manufacturing a grating by combining a plurality of bearing bars having a staggered shape with a fixing bar in a fitting manner, To provide a grating.

In order to achieve the above object,
A bearing bar formed at a position where the engaging portion is bent in a zigzag shape, a fixing bar formed at a position corresponding to the engaging portion of the bearing bar and having a guide hole having an open top, And a side bar welded to both ends of the bearing bar and the fixing bar.

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As described above, according to the present invention, a plurality of bearing bars having a zigzag shape are combined with a fixed bar fitting method or a sliding guide fitting method, so that the manufacturing process is very easy and the production cost can be minimized. Accordingly, since it can be assembled and installed immediately in the field, it is possible to improve the work efficiency.

1 is a perspective view of a combined grating in accordance with the present invention;
2 is an exploded perspective view showing a grating according to the present invention as a first embodiment;
3 is an enlarged partial enlarged view of an important coupling part of a grating according to the present invention;
4 is a partially enlarged view showing a structure in which a baying bar and a fixing bar according to the present invention are coupled to each other.
5 is an exploded perspective view showing a grating bonding structure according to a second embodiment of the present invention.
6 is an enlarged partial enlarged view of an important coupling portion of a grating according to the present invention;

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

The bearing bar 10 is formed at a position where the coupling portion 11 is formed in a zigzag shape and is formed at a position corresponding to the coupling portion 11 of the bearing bar 10, A side bar 30 welded to both ends of the bearing bar 10 and the fixing bar 20 is provided with a guide bar 23 having a guide hole 23 of an open top shape, ).

Hereinafter, the structure of the grating of the present invention will be described in detail.

As shown in Figs. 1 to 4,

The present invention has a structure in which a bearing bar (10), a fixing bar (20), and a side bar (30) are coupled to each other.

The bearing bar (10)

The plate having a predetermined height is formed in a long zigzag shape in the longitudinal direction and each of the bent portions has a coupling portion 11 to be installed on the fixing bar 20 on both outer sides, The shape may be a polygon such as a triangle, a rectangle, a pentagon, or the like.

The fixing bar 20 has a height corresponding to a predetermined height of the bearing bar 10 and has fixing holes 21 on both sides corresponding to the plurality of coupling portions 11 formed on the bearing bar 10 And the respective engaging portions 11 are inserted and fixed in the respective fixing grooves 21 so that the bearing bar 10 and the fixing bar 20 are engaged and fixed.

The fixing bar 20 has a height corresponding to a predetermined height of the bearing bar 10 and has a plurality of engaging portions 11 formed on the bearing bar 10 so as to penetrate one side or both sides And the respective engaging portions 11 are inserted and fixed in the respective engaging holes 22 so that the bearing bar 10 and the fixing bar 20 are engaged and fixed.

The fixing bar 20 has a height corresponding to a predetermined height of the bearing bar 10 and has a plurality of engagement portions 11 formed in the bearing bar 10 so that both sides thereof are open A guide hole 23 is formed from the upper part to the lower part and each of the engaging parts 11 is slidably fixed to the guide hole 23 formed in the lower part of the lower side of the fixing bar 20 in the downward direction, And the bearing bar 10 and the fixing bar 20 are engaged and fixed.

The side bar 30 is welded to both ends of the plurality of bearing bars 10 and the fixing bar 20 and functions to fix the bearing bar 10 and the fixing bar 20 to each other.

Hereinafter, the operation of the grating of the present invention will be described.

In the first embodiment,

As shown in Figs. 2 to 4,

The engaging portion 11 is inserted into the fixing groove 21 (the engaging hole 22) of the fixing bar 20 'located at one end of the grating and the curved surface of the bearing bar 10 is inserted into the engaging portion 11, The engaging portion 11 formed on the other curved surface is inserted into the fixing groove 21 (engaging hole 22) of the other fixing bar 20 and then the engaging portion 11 formed on one curved surface of the other bearing bar 10 11 are fixed to the fixing grooves 21 (fixing holes 22) of the fixing bar 20 so that the pair of bearing bars 10 are fixed in mutually symmetrical relation with respect to the fixing bar 20, The engaging portions 11 of the respective bearing bars 10 are fixed in such a manner that a discharge hole having a triangular shape with respect to the fixed bar 20 is formed continuously in the longitudinal direction.

As described above, each of the bearing bars 10 and the fixing bars 20 are connected and fixed, and the side bars 30 are fixed to the both sides of the drain holes, thereby completing the grating.

In the second embodiment,

As shown in Figs. 5 to 6,

The engaging portion 11 is slidably engaged with the guide hole 23 of the fixing bar 20 'located at one end of the grating along the guide hole 23 from the top to the bottom of the curved surface of the bearing bar 10, The engaging portion 11 formed on the other bent surface of the bearing bar 10 is slidably engaged with the guide hole 23 of the other fixed bar 20 from the upper portion to the lower portion, The pair of bearing bars 10 are fixed in mutually symmetrical relation with respect to the fixed bar 20 by sliding the coupling portion 11 to the guide hole 23 of the fixed bar 20, The engaging portion 11 of the bar 10 is fixed in such a manner that a discharge hole having a triangular shape with respect to the fixed bar 20 is formed continuously in the longitudinal direction.

That is, according to the present invention, in manufacturing a grating, a plurality of bearing bars 10 having a zigzag shape and a fixed bar 20 are coupled with each other by a fitting method or a sliding guide coupling method, It has a great advantage that it can be assembled and installed immediately in the field.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined by the appended claims and their equivalents. It will be understood by those of ordinary skill in the art that various changes and modifications may be made without departing from the scope of the present invention.

10: Bearing bar
11:
20,20 ': Fixed bar
21: Fixing groove
22: coupling ball
23: Guide Ball
30: Sidebar

Claims

A bearing bar 10 having a coupling portion 11 formed at a point bent in a zigzag form,
The guide bar 23 is formed at a position corresponding to the engaging portion 11 of the bearing bar 10 and is formed with a guide hole 23 having an open upper portion for the engaging portion 11 to be slidably engaged. (20)
And a side bar (30) welded to both ends of the bearing bar (10) and the fixing bar (20).

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