KR102325842B1 - Square cell trench grating - Google Patents

Abstract

The present invention relates to a square unit cell steel grating which comprises: a square frame (110) where a bar frame forms a square shape; first, second, and third unit cell assemblies (120, 120', 120'') installed inside the square frame (110) and realized by assembling square unit cells (20), which have an independent configuration and an entirely square container shape, in a line; and first and second partition wall frames (130, 130') welded to an inner circumferential surface of the square frame (110) while inserted to be welded between the first, second, third unit cell assemblies (120, 120', 120").

Description

Square cell trench grating

The present invention relates to a steel grating installed in a road drain, and more particularly, to a square unit cell steel grating capable of preventing a pedestrian from sliding by rainwater or a stroller or bicycle wheel from falling out.

In general, a drain hole is formed on the edge of the roadway to drain rainwater so that the vehicle can be operated when it rains, and the drain hole prevents the vehicle in motion and drains the rainwater at the same time. covered Such steel grating allows pedestrians to walk through the drain hole, and allows a bicycle or a stroller to run.

In general, steel grating consists of a pitcher plate that is fixedly installed on a square frame, and the pitcher plate consists of a plate-shaped transverse rib and a vertical rib, which is installed at a right angle to the transverse rib, and is made by twisting wire rods to improve strength. At this time, a through hole through which the vertical meat can be inserted is formed in the horizontal meat, and the vertical meat is welded and fixed while being sandwiched in the through hole.

However, in the case of these steel gratings, since the crossbars have the same height, when it rains or snows, pedestrians slip and fall from the crossbars.

In addition, there was a dangerous situation in which the wheels of a bicycle or stroller in motion fell through the cross bars and fell.

The present invention was created to solve the above problems, and it is a square unit cell steel grating that can prevent accidents in which pedestrians slip and fall even when it rains or snow, or a dangerous situation in which a stroller or bicycle wheel falls off and falls. intended to provide

In order to achieve the above object, the rectangular unit cell steel grating according to the present invention, a rectangular frame 110 in which the bar frame forms a rectangular shape; The first, second, and third unit cell assemblies 120, 120') ( 120"); and first and second bulkheads welded to the inner circumferential surface of the square frame 110 in a welded state sandwiched between the first, second, and third unit cell assemblies 120, 120', and 120" Frame 130 (130 '); including; the square unit cell 20, a square body 21 having a square cylinder shape in which horizontal and vertical are symmetrical, and a lower side on one side of the square body 21 The first and second lower coupling grooves 22 and 23 formed to be opened to the It is characterized in that it includes a plurality of protrusions 26 formed on the upper surface of the square body 21 on the side of the first and second upper coupling grooves 24 and 25.

delete

In the present invention, the square body 21, the first and second lower coupling grooves 22 and 23 are formed to open to the lower side, and the first and second upper coupling grooves 24 and 25 are It is formed to be opened to the upper side, and is formed by bending the strip-shaped plate 21 ′ having the protrusion 26 on the upper side in a right angle direction based on three bending lines L.

In the present invention, the square body 21, the first and second upper coupling grooves 24, 25 and the first and second lower coupling grooves 22 and 23 are the center of the square body 21 It forms 90° with respect to , and is positioned symmetrically to each other.

In the present invention, the depth of the first and second lower coupling grooves 22 and 23 in the lower surface of the square body 21, and the first and second upper coupling in the upper surface of the square body 21 As the depths of the grooves 24 and 25 are the same, the first and second upper coupling grooves 24 and 25 formed in the rectangular body 21 and the first and second downward couplings formed in the other rectangular body 21' When assembling the grooves 22' and 23', the bottom surface of the square body 21 and the other square body 21' to be assembled is flat.

In the present invention, the bottom surfaces of the first, second, and third unit cell assemblies 120, 120', and 120" are the square frame 110 and the first and second bulkhead frames 130, 130'. ) is located on the upper side by the distance (D) from the bottom surface formed.

According to the present invention, the first, which is implemented by assembling a square unit cell 20, which is an independent configuration between the square frame 110 and the first and second bulkhead frames 130 and 130 ' and has a rectangular cylindrical shape as a whole, in a line, 2, 3 unit cell assemblies 120, 120', and 120" are interposed and welded, so that when it rains or snows, an accident that slips and falls while walking while stepping on a crossbar, or a stroller or bicycle wheel that is running may pass. It can prevent dangerous situations such as falling and falling.

And the rectangular frame 110 and the first and second bulkhead frames 130, 130', the first, second, and third unit cell assemblies 120, 120', and the portion in close contact with 120" is welded to the three-dimensional structure Durability can be implemented, and accordingly, even when a heavy load is applied, it can be supported.

1 is a perspective view of a square unit cell steel grating according to the present invention;
Figure 2 is a plan view of the steel grating of Figure 1;
3 is a perspective view showing the first, second, and third unit cell assemblies of FIG. 1 being extracted;
Figure 4 is a perspective view showing an extract of the square unit cell of Figure 3;
5 is an exploded view of the square unit cell of FIG. 4;
6 is a view for explaining that the first and second downward coupling grooves and the first and second upper coupling grooves formed in the square unit cell of FIG. 4 are positioned at right angles to each other with respect to the center;
7 is a view for explaining that the bottom surface of the first, second, and third unit cell assembly implemented by assembling the square unit cell of FIG. 3 is flat;
8 is a view for explaining that the bottom surface of the first, second, and third unit cell assembly of FIG. 7 is located on the upper side by a spaced distance D from the bottom surface of the square frame and the first and second grid frames;

Hereinafter, a rectangular unit cell steel grating according to the present invention will be described in detail with reference to the accompanying drawings.

Hereinafter, what is described as "upper" or "upper" may include not only those directly above in contact, but also those above in non-contact. Terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. The singular expression includes the plural expression unless the context clearly dictates otherwise. In addition, when a part "includes" a certain component, this means that other components may be further included, rather than excluding other components, unless otherwise stated. In addition, terms such as "...unit" and "module" described in the specification mean a unit that processes at least one function or operation.

1 is a perspective view of a square unit cell steel grating according to the present invention, FIG. 2 is a plan view of the steel grating of FIG. 1, and FIG. 3 is a perspective view showing the first, second, and third unit cell assemblies of FIG. , FIG. 4 is a perspective view showing an extract of the square unit cell of FIG. 3 .

As shown, the square unit cell steel grating according to the present invention is mounted on the step of the drainage ditch to allow pedestrians to walk and to filter large foreign substances contained in rainwater. )class; As being installed inside the rectangular frame 110, the first, second, and third unit cell assemblies 120, 120 ', 120 which are independently configured and that the rectangular unit cells 20, which are generally rectangular in shape, are assembled in a row. "), and the first, second, and third unit cell assemblies 120, 120', and first and second bulkhead frames 130 welded to the inner circumferential surface of the rectangular frame 110 in a welded state. ) (130'); characterized in that it includes. These square unit cell steel gratings are mounted on the steps of the drainage channels on the edge of the road.

The size of the square unit cell steel grating of the present invention varies depending on the size and number of square unit cells constituting the unit cell assembly, the number of unit cell assemblies, and the number of barrier rib frames. The description will be given by giving the designation numbers 1, 2, and 3 to the three unit cell assemblies of the unit cell assembly, and assigning the reference numbers 1 and 2 to two partition frame frames among the plurality of partition wall frames.

The first, second, and third unit cell assemblies 120, 120', and 120" are implemented by assembling square unit cells 20 that are symmetrical in width and length and have the same size and rectangular shape in a row, It is installed between the frame 110 and the first and second bulkhead frames 130 and 130'.

The heights of the first and second bulkhead frames 130 and 130 ′ are the same as the heights of the rectangular frame 110 .

The first, second, and third unit cell assemblies 120, 120', and 120" are sandwiched between the square frame 110 and the first and second bulkhead frames 130 and 130', and the first, second, The side surfaces of the square unit cells 20 constituting the three unit cell assemblies 120, 120', and 120" are in close contact with the square frame 110 and the first and second bulkhead frames 130 and 130'. is fixed by welding. Accordingly, the rectangular frame 110, the first and second bulkhead frames 130, 130', and the first, second, and third unit cell assemblies 120, 120', and 120" are three-dimensionally welded to each other.

Here, at both ends of the first, second, and third unit cell assemblies 120, 120 ', and 120 ", as shown in FIG. 3, a square unit cell 20 is a half-square frame ( 25) is located. Therefore, the first, second, and third unit cell assemblies 120, 120', and 120" are composed of a plurality of square unit cells 20 and a pair of half-square frames 25, The cut surface 25a of the square frame 25 is welded and fixed in a state in close contact with the square frame 110 and the first and second bulkhead frames 130 and 130'.

The square unit cell 20 is, as shown in FIG. 4, a square body 21 having a square cylinder shape in which horizontal and vertical are symmetrical, and a first formed to be opened downwardly on one side of the square body 21, 2 lower coupling grooves 22 and 23, first and second upper coupling grooves 24 and 25 formed to be opened upwardly on the other side of the square body 21, and first and second upper coupling grooves 24 (25) It is characterized in that it includes a plurality of protrusions 26 formed on the upper surface of the square body 21 on the side.

A plurality of protrusions 26 are partially formed on the upper surface of the rectangular body 21, and pedestrians walking on the first, second, and third unit cell assemblies 120, 120', and 120" are prevented from sliding by rainwater. to prevent

5 is an exploded view of the square unit cell of FIG.

As shown, the square body 21 is formed such that the first and second lower coupling grooves 22 and 23 are opened to the lower side and the first and second upper coupling grooves 24 and 25 are opened to the upper side. It is formed, and is formed by bending a strip-shaped plate 21 ′ having a protrusion 26 on the upper side in a right angle direction based on three bending lines L. Accordingly, both ends of the plate member 21 ′ are in close contact with each other in a right angle direction to complete the rectangular body 21 forming a quadrangle as a whole.

FIG. 6 is a view for explaining that the first and second downward coupling grooves and the first and second upper coupling grooves formed in the square unit cell of FIG. 4 are positioned at right angles to each other with respect to the center.

The first and second lower coupling grooves 22 and 23 and the first and second upper coupling grooves 24 and 25 are, as shown in FIG. 6 , 90° with respect to the center of the square body 21 . and are positioned symmetrically to each other. Accordingly, when assembling the square body 21 and the other square body 21', the corner of the other square body 21' is located in the center of the square body 21, and the size is increased by repeatedly assembling several square bodies. The first, second, and third unit cell assemblies 120, 120', and 120" that can be variously implemented can be implemented.

7 is a view for explaining that the bottom surface of the first, second, and third unit cell assemblies implemented by assembling the square unit cells of FIG. 3 is flat, and FIG. 8 is the first, second, and third unit cell assemblies of FIG. It is a view for explaining that the bottom surface of the square frame and the first and second grid frames are located on the upper side by a distance (D) from the bottom surface.

The depth of the first and second lower coupling grooves 22 and 23 on the lower surface of the square body 21, and the depth of the first and second upper coupling grooves 24 and 25 on the upper surface of the square body 21 is the same Accordingly, the first and second upper coupling grooves 24 and 25 formed in the square body 21 and the first and second lower coupling grooves 22' and 23' formed in the other square body 21' are inserted and assembled If, as shown in Figure 7, the bottom surface of the square body 21 and the other square body 21' to be assembled is flat. That is, the bottom surfaces of the first, second, and third unit cell assemblies 120, 120', and 120" composed of a plurality of rectangular bodies are to be flat.

The bottom surfaces of the first, second, and third unit cell assemblies 120, 120', and 120" are, as shown in Fig. 8. The rectangular frame 110 and the first and second bulkhead frames 130, 130 ') is positioned on the upper side by the distance D) from the bottom surface, and at this time, the distance D has a range of 3 to 10 mm. Accordingly, the first, second, and third unit cell assemblies 120, 120' ) Even though the edges of the square unit cells 20 constituting the 120" are welded to the inner surfaces of the square frame 110 and the first and second bulkhead frames 130 and 130' from the bottom surface, the welding bead (W) ) does not protrude from the bottom surface of the square frame 110 and the first and second bulkhead frames 130 and 130'. Therefore, when stacking a plurality of steel gratings of the present invention for storage or distribution, they can be stacked accurately in the vertical direction.

When the spacing D is 3 mm or less, the bottom surface of the corner of the square unit cells 20 constituting the first, second, and third unit cell assemblies 120, 120 ', and 120 " is a square frame 110. And when welding to the side of the first and second bulkhead frames 130 and 130', the bead (W) protrudes to the lower side of the square frame 110 and the first and second bulkhead frames 130 and 130' to the steel When the grating is laminated, it is obliquely laminated by the bead (W) and is unstable, and when the spacing (D) is 10 mm or more, compared to the height of the square frame 110 and the first and second bulkhead frames 130 and 130' Since the heights of the first, second, and third unit cell assemblies 120, 120', and 120" are significantly reduced, they cannot support the heavy load applied to the steel grating.

As described above, according to the present invention, the rectangular unit cell 20, which is an independent configuration between the rectangular frame 110 and the first and second bulkhead frames 130 and 130 ′ and is in the form of a rectangular cylinder as a whole, is assembled in a line and is implemented. The first, second, and third unit cell assemblies 120, 120', and 120" are interposed and welded, so that when it rains or snows, an accident or a sliding and falling accident while walking while stepping on a crosswalk, or a stroller or bicycle running Dangerous situations such as falling over when wheels pass by can be prevented.

In addition, the rectangular frame 110 and the first and second bulkhead frames 130, 130' have a three-dimensional structure by welding the first, second, and third unit cell assemblies 120, 120', and 120" in close contact with each other. Durability can be implemented, and accordingly, even when a heavy load is applied, it can be supported.

Although the present invention has been described with reference to one embodiment shown in the drawings, which is only exemplary, those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom.

110 ... square frame 120, 120', 120" ... unit cell assembly
20 ... square unit cell 21 ... square body
22, 23 ... First and second lower coupling grooves 24, 25 ... First and second upper coupling grooves
26 ... stone 130, 130' ... first and second bulkhead frames
W ... Weld Bead

Claims (6)

a rectangular frame 110 in which the bar frame forms a rectangular shape;
The first, second, and third unit cell assemblies 120, 120') ( 120"); and
The first, second, and third unit cell assemblies 120 ( 130');
The square unit cell 20 has a square body 21 having a square cylinder shape with horizontal and vertical symmetry, and first and second lower coupling grooves 22 formed to be opened downwardly on one side of the square body 21 . ) 23 and the first and second upper coupling grooves 24 and 25 formed to be opened upwardly on the other side of the square body 21, and the first and second upper coupling grooves 24 and 25 side Square unit cell steel grating comprising a plurality of protrusions 26 formed on the upper surface of the square body 21 of the. delete According to claim 1, The rectangular body 21,
The first and second lower coupling grooves 22 and 23 are formed to open to the lower side, the first and second upper coupling grooves 24 and 25 are formed to open to the upper side, and the protrusion ( A square unit cell steel grating, characterized in that it is formed by bending the strip-shaped plate 21 ′ on which 26) is formed in a right angle direction based on three bending lines (L). According to claim 1, The rectangular body 21,
The first and second upper coupling grooves 24 and 25 and the first and second downward coupling grooves 22 and 23 form a 90° angle with respect to the center of the square body 21 and are positioned symmetrically to each other. Characterized by a square unit cell steel grating. According to claim 1,
The depth of the first and second lower coupling grooves 22 and 23 in the lower surface of the square body 21, and the first and second upper coupling grooves 24 in the upper surface of the square body 21 ( As the depth of 25) is the same,
When assembling the first and second upper coupling grooves 24 and 25 formed in the square body 21 and the first and second lower coupling grooves 22' and 23' formed in the other square body 21' , Square unit cell steel grating, characterized in that the bottom surface of the square body 21 and the other square body 21' to be assembled is flat. According to claim 1,
The bottom surfaces of the first, second, and third unit cell assemblies 120, 120', and 120" are the bottom surfaces formed by the rectangular frame 110 and the first and second bulkhead frames 130 and 130'. Square unit cell steel grating, characterized in that it is located on the upper side by the spacing (D) in the.

Images