KR101475030B1 - Grating structure - Google Patents

Abstract

A grating structure installed in a drain hole, the grating structure comprising: a peripheral frame; a reinforcing portion having a sub-bar inside the peripheral frame; A grating disposed on the sub-bar; And a support shaft for supporting the auxiliary bar, wherein the auxiliary bar includes at least one first auxiliary bar arranged horizontally with a gap therebetween, and at least one second auxiliary bar cross-disposed at the first auxiliary bar, The grating portion may be provided with a support frame having a drainage passage in a vertical direction and a perforated member on the support frame.

Description

{GRATING STRUCTURE}

The present disclosure relates to a grating structure.

Steel grating is a typical lid of a drain to protect pedestrians and vehicles on the road.

Conventional gratings are installed in a form in which the grating having drainage passages is placed directly on the concrete of the upper inflow portion of the drainage port. However, since such a conventional grating is supported only on the periphery of the concrete, there is a problem in that when the load is applied to the center portion, deformation and damage easily occur. Further, in order to minimize the deformation and damage of the grating, there is a problem that the material of the grating is increased more and the cost is increased and the weight is increased and the management becomes difficult.

In addition, when large-sized foreign matter can not be blocked properly, a large amount of maintenance costs are incurred because the pipeline is narrowed when it flows into the drain port, causing flooding and frequent cleaning.

The present invention can minimize the deformation and damage of the grating due to the load without reducing the efficiency of the grating and prevent the foreign matter from entering into the drain hole as much as possible and to easily take out the foreign matter even if the foreign matter passes through the grating. The purpose is to provide.

According to a first aspect of the present invention, there is provided a grating structure comprising: a reinforcing portion having a perimeter frame and an auxiliary bar inside the perimeter frame; A grating disposed on the sub-bar; And a support shaft for supporting the auxiliary bar, wherein the auxiliary bar includes at least one first auxiliary bar arranged horizontally with a gap therebetween, and at least one second auxiliary bar cross-disposed at the first auxiliary bar, The grating portion may be provided with a support frame on which a drainage passage is formed in the vertical direction and a perforated member on the support frame.

According to an embodiment of the present invention, the puncturing member may be provided with an opening, and a garbage compartment may be provided on the lower side of the puncturing member at a position corresponding to the opening.

According to the present invention, since the grating portion is not directly disposed on the concrete but is supported on the auxiliary bar and supported by the reinforcing portion and the support shaft, the effect of dispersing the load applied to the grating occurs, And the drainage efficiency can be maximized.

In addition, foreign matter having a large volume can be prevented from flowing through the puncturing member and the trash storage unit, and the foreign substances collected in the trash storage unit can be easily collected through the opening.

1 is an exploded perspective view of a grating portion included in a grating structure according to an embodiment of the present invention;
2 is a perspective view of a reinforcement portion included in a grating structure according to an embodiment of the present invention;
3 is an exploded perspective view of a grating structure including a trash storage portion.
4 is a view showing a process in which the shielding unit is mounted on the second cradle.
5 is a view showing a process in which the blocking unit of another embodiment is mounted on the second cradle.
6 is a cross-sectional view showing that a fastening member provided at a lower portion of an extension of the perforated member is fastened to the peripheral frame.
7A and 7B are cross-sectional views showing that the support frame is prevented from being separated by the peripheral frame projection and the lock unit.
8 is a cross-sectional view schematically showing a grating structure according to an embodiment of the present invention installed in a drain hole.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. It should be understood, however, that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the drawings, the same reference numbers are used throughout the specification to refer to the same or like parts.

Throughout this specification, when a member is " on " another member, it includes not only when the member is in contact with the other member, but also when there is another member between the two members.

Throughout this specification, when an element is referred to as "including " an element, it is understood that the element may include other elements as well, without departing from the other elements unless specifically stated otherwise. The terms "about "," substantially ", etc. used to the extent that they are used throughout the specification are intended to be taken to mean the approximation of the manufacturing and material tolerances inherent in the stated sense, Accurate or absolute numbers are used to help prevent unauthorized exploitation by unauthorized intruders of the referenced disclosure. The word " step (or step) "or" step "used to the extent that it is used throughout the specification does not mean" step for.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

First, a grating structure according to an embodiment of the present invention (hereinafter referred to as a 'main grating structure') will be described.

The drainage hole is a hole formed in the ground to allow water to flow into the drainage pipe buried in the underground, and the grating structure is installed in the upper inflow portion of the drainage hole to prevent the wheels of the pedestrian and the moving means from coming off.

The present grating structure includes a reinforcing portion (10).

Referring to FIG. 3, the reinforcing portion 10 supports the grating portion 30 to be described later, so that it is possible to prevent deformation and damage easily when a load is applied to the center portion of the conventional grating. Further, since the grating portion 30 may not be directly installed on the concrete by the reinforcing portion 10, the drainage efficiency of the grating structure can be improved.

Conventionally, the grating is directly placed on the concrete of the upper inflow portion of the drain hole. More specifically, in the case of a grating having a width of about 400 mm, since the perimeter is placed on the concrete by about 50 mm each, about 25% of the grating portion becomes a space where the drainage function is lost, There is a problem that it causes a clogging.

On the other hand, in the present grating structure, since the grating portion 30 is not installed directly on the concrete by including the reinforcing portion 10 as described above, the drain passage provided in the grating portion 30 can be utilized 100% The drainage efficiency can be significantly improved as compared with the conventional art.

The reinforcing portion (10) includes a peripheral frame (11).

The circumferential frame 11 may be formed to have the same size as the circumference of the support frame 31 to be described later so that the support frame 31 is provided on the upper side of the circumferential frame 11, The support frame 31 may be formed to have a circumference greater than the circumference of the circumference frame 31 so that the support frame 31 is installed inside the circumference frame 11. [

The reinforcing part (10) is provided with an auxiliary bar inside the peripheral frame (11).

2, 3 and 7, the sub-bar includes at least one first sub-bar 12 disposed horizontally at intervals.

In order to prevent deformation of the support frame 31 from a larger load and stably support the second sub-bar 13, it is preferable that a plurality of the first sub-bars 12 are provided as shown in Fig. 2 .

Referring to FIGS. 2, 3 and 7, the sub-bar includes at least one second sub-bar 13 cross-positioned with the first sub-bar 12.

In order to prevent deformation of the support frame 31 from a larger load, it is preferable that a plurality of second auxiliary bars 13 are provided as shown in Fig.

Since the grating portion 30 is doubly supported through the first auxiliary bar 12 and the second auxiliary bar 13, the structural strength of the present grating structure can be enhanced.

At this time, as shown in FIG. 7, the first sub-bar 12 and the second sub-bar 13 may be cross-disposed on the same plane. Alternatively, as shown in FIGS. 2 and 3, the second sub-bar 13 may be disposed on the first sub-bar 13.

The reinforcing portion 10 may include a pair of first cradles 14.

Referring to Fig. 2, both ends of the first auxiliary bar 12 are respectively mounted on the pair of first cradles 14, respectively.

Referring to FIG. 2, the first mounting table 14 may have a first mounting groove 141 recessed from the upper end thereof. The first stand 14 may be installed on the peripheral frame 11 such that both end portions of the first sub-bar 12 are respectively received in the first mounting grooves 141.

As a result, the first auxiliary bar 12 can be separated or fastened from the first cradle 14 by being fitted into or disengaged from the first cradling groove 141. Therefore, when the first auxiliary bar 12 receives a load and deforming or damages occur, it can be simply replaced.

At this time, in order that the first sub-bar 12 can be more stably mounted on the first cantilever 14, the first sub-grove 141 can receive the end of the first sub- It is preferable to form it so as to have a certain depth.

The reinforcing portion 10 may include a pair of second cradles 15.

Referring to Fig. 2, both ends of the second auxiliary bar 13 are respectively fixed to the pair of second cradles 15, respectively.

Referring to FIG. 2, the second mounting table 15 may have a second mounting groove 151 that is recessed from the top. The second holder 15 may be installed on the peripheral frame 11 such that the opposite ends of the second auxiliary bar 13 are respectively received in the second holder 151.

As a result, the second sub-bar 13 is fitted into or disengaged from the second mounting groove 151, so that the second sub-bar 13 can be separated or fastened from the second mounting base 15. Therefore, when the second auxiliary bar 13 receives a load and is deformed or damaged, it can be simply replaced.

4 and 5, the second mounting groove 151 is formed in the second auxiliary bar 13 so that the second auxiliary bar 13 can be stably mounted on the second mounting base 15, It is preferable that the end portion is formed so as to have a depth enough to be accommodated all in the height direction.

The second mounting groove 151 may be recessed such that the lower surface of the second auxiliary bar 13 is in contact with the upper surface of the first auxiliary bar 12.

Accordingly, the second sub-bar (13) can prevent the first sub-bar (12) from being detached from the first sub-groove (141). Therefore, a separate member for preventing the first sub-bar 12 from being detached from the first mounting groove 141 may not be provided.

When the second sub-bar 13 can not be brought into contact with the first sub-bar 12 due to the short depth of the second mounting groove 151, when the load is applied to the grating portion 30, Only the bar 13 serves to support the grating portion 30 and the first auxiliary bar 12 can not serve to support the grating portion 30. [ Accordingly, the first auxiliary bar 12 and the second auxiliary bar 13 doubly support the grating portion 30 such that the first auxiliary bar 12 abuts the second auxiliary bar 13, Can be increased.

2, 4 and 5, the reinforcing portion 10 may include a blocking unit 16 for preventing the end portion of the second auxiliary bar 13 from being detached from the second mounting groove 151 have.

At this time, since the second sub-bar 13 is in contact with the first sub-bar 12 as described above, the first sub-bar 12 can be prevented from being separated from the first sub-groove 141, A separate member for preventing separation of the auxiliary bar 12 is not required.

The second auxiliary bar 13 can be tightly fixed to the second mounting groove 151 through the cutoff unit 16 so that no noise due to the shaking of the auxiliary bar is generated even when a car or a person passes over the grating structure can do. Also, since the blocking unit 16 prevents the second auxiliary bar 13 from being released, theft of the auxiliary bar can be prevented.

A blocking groove 131 may be formed at an end of the second sub-bar 13. In addition, the blocking unit 16 may be partially movable on the blocking groove 131.

Here, the blocking groove 131 is not only denoted by the upper surface or the lower surface of the second sub-bar 13, but may also mean that the lower side has a recessed shape and one side is opened.

4, the cut-off unit 16 includes a second holding table 15 and a second holding table 15 so as to traverse the upper portion of the second placing groove 151, which is a passage through which the end of the second auxiliary bar 13 can be detached, 5 or the upper portion of the second mounting groove 151 as shown in FIG. 5, it is possible to prevent the end portion of the second auxiliary bar 13 from being detached from the second mounting groove 151.

The portion 161 of the blocking unit 16 can be slidably moved on the blocking groove 131. [

Referring to FIG. 4 (a), a hole may be formed in the second holder 15 so that a part 161 of the shielding unit 16 can be inserted. Therefore, by moving the grip portion 163 so that the portion 161 of the shielding unit 16 is inserted into the hole of the second mount 15, the portion 161 of the shielding unit 16 is moved to the second mount groove 15 And can be moved across the second mounting groove 151. 4 (b), the blocking unit 16 can prevent the second sub-bar 13 from being detached from the second mounting groove 151. As shown in Fig.

At this time, as shown in FIG. 4, one blocking unit 16 may be inserted into the holes of the plurality of second cradles 15. Accordingly, one blocking unit 16 may be provided to prevent the plurality of auxiliary bars 13 from being separated from each other.

As another example, referring to FIG. 5, a portion 161 of the blocking unit 16 may be moved onto the blocking groove 131 by being inserted toward the blocking groove 131. 5 (a), by moving the grip portion 163 toward the second auxiliary bar 13 from the outside of the peripheral frame 11, as shown in FIG. 5 (b) The blocking unit 16 is fitted in the upper portion of the second mounting groove 151 to prevent the second auxiliary bar 13 from being separated.

At this time, the blocking unit 16 can prevent one of the blocking units 16 from being separated from one second auxiliary bar 13 as shown in FIG. Alternatively, when a plurality of the blocking units 16 shown in Fig. 5 are connected to each other, one blocking unit 16 may prevent the plurality of second auxiliary bars 13 from escaping as shown in Fig. 4 have.

2, 4 and 5, the peripheral frame 11 may include a storage block 111 on the outer surface thereof, which can receive the grip portion 163 of the blocking unit 16.

By this, the grip portion 163 of the blocking unit 16 is moved outside the peripheral frame 11, so that the second auxiliary bar 13 can be detached and attached by a simple operation.

1, 3 and 8, the reinforcing portion 10 may include a support member 17 formed on the outer surface of the peripheral frame 11 to support the inner wall surface of the drain hole.

In the conventional grating, the periphery of the grating formed with the drainage passage on the concrete of the upper inflow portion of the drainage port is directly mounted. However, in such a case, the drainage passage laid on the concrete can not serve as a drainage inflow portion, which causes a problem of lowering the drainage efficiency of the grating.

8, the present grating structure includes a peripheral frame 11 provided on a wall surface of a drain port through a support member 17 and a grating portion 30 provided on an inner side or an upper side of the peripheral frame 11 The grating portion 30 can be supported by the peripheral frame 11, thereby eliminating the water drain passage on the concrete and maximizing the drainage efficiency of the grating portion 30. [

The present grating structure includes a grating portion (30).

Referring to FIG. 1, the grating portion 30 blocks foreign matter and allows only rainwater to flow into the drain port.

The grating portion 30 is disposed on the auxiliary bar.

The grating portion 30 is disposed on the auxiliary bar, and may be disposed on the inner side of the peripheral frame 11 or on the peripheral side of the peripheral frame 11, as shown in FIG.

The grating portion 30 is provided with a support frame 31 having a drainage passage 312 formed in a vertical direction.

Referring to FIG. 1, the support frame 31 may be arranged such that a plurality of plates form a drainage passage 312.

For example, as shown in FIG. 1, the support frame 31 may have a shape in which a plurality of plates are arranged in one direction inside the frame. Alternatively, the support frame 31 may have a shape in which a plurality of plates are arranged crosswise to each other so as to have a grid pattern on the inner side of the frame.

The grating portion (30) is provided with a perforated member (33) on the support frame (31).

Referring to FIG. 1, the perforated member 33 may be supported by a plurality of plates provided on the support frame 31.

1, the size of the hole 332 formed in the perforated member 33 may be smaller than the size of the drainage passage 312 formed in the support frame 31. [

The perforated member 33 is formed with a plurality of holes 332 on the upper surface thereof so that only rainwater can be introduced into the drain port and bulky foreign substances such as leaves and stones are prevented from flowing into the drain port.

At this time, the size of the hole 332 formed in the perforated member 33 is preferably about 20 mm or less, for example, about 7 mm to about 14 mm.

When the size of the hole 332 formed in the perforated member 33 is 20 mm or more, the cigarette butt, which is the largest amount of waste in the city, easily slips and the function of preventing the entry of the trash can be lost.

Referring to FIG. 1, a protruding line 331 may be formed on the upper surface of the perforated member 33 along the hole 332 and the hole 332.

The protruding line 331 restricts and weakens the flow of water on the upper surface of the perforated member 33 so that it can not easily flow, thereby allowing water to flow naturally between the protruding lines 331 The water can flow more smoothly into the drain hole through the hole 332 formed between the protruding lines 331. [

Referring to FIG. 1, the protruding lines 331 may be formed in the opposite direction.

As a result, water flowing in various directions can flow into the drain hole more smoothly.

At this time, the perforated member 33 may include a first region 333 having a protrusion line 331 formed along the first direction. The puncturing member 33 may include a second region 335 having a protrusion line 331 formed along the second direction.

In this case, when the projecting line 331 is divided into a plurality of sections, the direction is not limited to a direction in which the lines in each section are constantly directed, Can be used to refer to the direction to which it is directed.

Referring to FIG. 1, an embossing 3313 may be formed on the protruding line 331 at intervals so as to prevent adhesion of foreign matter.

When foreign matter adheres on the protruding line 331, water is prevented from flowing over the protruding line 331 to the other water channel. Therefore, when water is poured into any one of the water channels formed between the protruding lines 331, May not occur smoothly.

As shown in FIG. 1, by forming the embossing 3313 on the protruding line 331, foreign matter can be adhered on the embossing 3313. As a result, a space can be provided between the foreign object and the protruding line 331 so that water can flow over the protruding line 331. When water is poured into any one of the water channels formed between the protruding lines 331, 331) over the other channels. Therefore, it is possible to drain more smoothly.

Referring to FIG. 3, the perforation member 33 may have an opening 334 formed therein. At this time, the garbage receiving portion 60 may be provided on the lower side of the perforated member 33 at a position corresponding to the opening 334. For example, the waste storage portion 60 may be formed of a pore or a net. Further, the opening 334 may be formed on one side of the perforated member 33.

The foreign matter entering through the opening 334 can be received in the refuse receiving portion 60, so that it is possible to prevent the foreign matter from accumulating in the drain to block the drainage passage.

Further, the waste accommodating portion 60 can be taken out through the opening portion 334, so that the foreign matter can be easily removed.

The opening 334 may be formed by removing a part of the perforated member 33 provided on the supporting frame 31 or by providing the perforated member 33 on only a part of the supporting frame 31 It is possible.

The opening 334 is preferably formed at a place where a large amount of foreign matter such as garbage, For example, in the case of a grating structure installed on a side of a road for a general automobile, it is preferable that the opening 334 is provided at a position where the jaw is formed, since foreign matter accumulates in the jaw formed due to the height difference between the road for vehicles and the sidewalk.

Referring to FIG. 3, the refuse receiving portion 60 may be disposed below the reinforcing portion 10.

Referring to FIGS. 1 and 3, a fastening member 319 fastened to the reinforcing portion 10 may be provided at a lower portion of the support frame 31.

Thus, the support frame 31 can be fixed to the reinforcement portion 10, thereby preventing the noise generated when the support frame 31 is shaken when a car or a person passes over the grating structure. In addition, theft of the support frame 31 can be prevented, and the structural strength of the grating structure can be enhanced.

The fastening member 319 can be fastened to the inner surface of the peripheral frame 11 through bolts or the like. Alternatively, the fastening member 319 may be fastened to the second auxiliary bar 13.

For example, the fastening member 319 may be provided in an annular shape as shown in FIGS.

Alternatively, the perforated member 33 may include an extension 337 extending downwardly of the support frame 31 to surround the perimeter of the support frame 31, A fastening member 339 fastened to the reinforcing portion 10 may be provided.

In this case, only the piercing member 33 is fastened to the reinforcing portion 10, so that the supporting frame 31 located under the piercing member 33 can be brought into close contact with the reinforcing portion 10.

6, the fastening member 339 is fastened to the inner surface of the peripheral frame 11 through the bolts 340, so that the perforated member 33 can be engaged with the reinforcing portion 10.

Alternatively, although not shown in the drawing, the fastening member 339 is fastened to the second auxiliary bar 13, so that the perforated member 33 can be engaged with the reinforced portion 10.

7, a first projection 315 and a second projection 316 may be formed on the outer surface of the support frame 31, which is placed on the auxiliary bar inside the peripheral frame 11 have. A peripheral frame protrusion 115 may be formed on the first protrusion 315 on the inner surface of the peripheral frame 11 so as to prevent the first protrusion 315 from being separated from the support frame 31 when the main body 31 is placed on the support frame 31.

Referring to FIG. 7, the peripheral frame protrusion 115 may be formed at a position corresponding to the position of the first protrusion 315 when the support frame 31 is mounted on the inner side of the peripheral frame 11. Therefore, when the support frame 31 is mounted on the inner side of the peripheral frame 11, the upper surface of the first projection 315 and the lower surface of the peripheral frame projection 115 are brought into contact with each other, .

The reinforcing portion 10 may include a locking unit 18 that is partly movable on the second projection 316 when the supporting frame 31 is positioned so as to prevent the second projection 316 from being separated.

7A, before the lock unit 18 is inserted, the support frame 31 is inserted into the inner side of the peripheral frame 11 so that the lower surface of the peripheral frame projection 115 and the upper surface of the first projection 315 are in contact with each other, . 7B, the lower surface of a portion of the lock unit 18 is inserted into the second projection 316 by inserting the lock unit 18 from the outside of the peripheral frame 11 onto the second projection 316. Then, So that the support frame 31 can be prevented from being detached from the peripheral frame 11.

As a result, the noise generated due to theft of the support frame 31 and the shaking of the support frame 31 can be prevented, and the structural strength can be increased.

7, the first protrusion 315 and the second protrusion 316 may be formed on the outer surface of the member facing each other on the outer surface of the support frame 31. [

The present grating structure includes a support shaft (50).

The support shaft 50 supports the auxiliary bar.

3 and 8, the grating portion 30 can be supported through the support shaft 50 as well as the auxiliary bar.

Referring to FIG. 2, the upper end of the support shaft 50 may support the intersection point of the first sub-bar 12 and the second sub-bar 13.

The greatest load is applied to the intersection points of the first auxiliary bar 12 and the second auxiliary bar 13, so that it is possible to secure the structural strength of the grating structure by supporting it.

At this time, as shown in FIG. 8, the lower end of the support shaft 50 may be installed on the bottom surface of the drain hole or may be installed on the inner wall surface of the drain hole though not shown in the drawing.

A fixing unit 51 may be provided at the upper end of the supporting shaft 50 to mount the first and second auxiliary bars 12 and 13 at intersecting points.

Referring to FIG. 2, the fixing unit 51 may be in the form of a hollow cross, and the intersection point of the first sub-bar 12 and the second sub-bar 13 may be inserted into the hollow of the cross. Accordingly, the strength of the grating structure can be enhanced by fixing the first auxiliary bar 12 and the second auxiliary bar 13.

Since the conventional grating is supported only on the concrete of the upper inflow portion of the drain port, when the load is applied to the center portion, deformation and damage easily occur, and a part of the drain passage is placed on the concrete.

On the other hand, in the present grating structure, since the grating portion 30 is not directly disposed on the concrete but is disposed on the auxiliary bars 12 and 13 and is doubly supported by the reinforcing portion 10 and the support shaft 50, The drainage efficiency can be maximized and the deformation and damage of the grating can be minimized.

The present grating structure can prevent the introduction of bulky foreign matter through the perforation member 33 and the trash storage portion 60. Further, the foreign matter collected in the refuse storage portion 60 can be simply collected through the opening portion 334. [

Since the auxiliary bars 12 and 13 can be freely detached from the cradles 14 and 15, the present grating structure can be easily replaced when the auxiliary bars 12 and 13 are damaged.

The present grating structure allows the perforated member 33 or the support frame 31 to be coupled to the auxiliary bar via the fastening members 339 and 319, respectively, so that theft prevention and strength can be secured.

The present grating structure forms a channel through a protrusion line 331 formed between the hole 332 and the hole 332 on the upper surface of the perforated member 33 to guide water into the hole 332, The water can be flowed to other water channels through the embossing 3313 formed on the protruding line 331, so that the drainage efficiency can be further improved.

It will be understood by those of ordinary skill in the art that the foregoing description of the embodiments is for illustrative purposes and that those skilled in the art can easily modify the invention without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

10: reinforcing portion 30: grating portion
50; Support shaft 60: Garbage compartment
11: Perimeter frame 12: First auxiliary bar
13: second auxiliary bar 14: first holder
15: second stand 16: interrupting unit
17: support member 31: support frame
33: piercing member 131: blocking groove
141: first mounting groove 151: second mounting groove
161: part of the blocking unit 163:
111: Storage block 312: Drain passage
331: protruding line 332: hole of perforated member
333: first region 335: second region
3313: Embossing 337: Extension
319, 339: fastening member 315: first projection
316: second projection 115: peripheral frame projection
18: Locking unit

Claims (20)

In a grating structure provided in a drain hole,
A peripheral frame provided on a wall surface of the drain hole, and a reinforcing portion provided on the inner side of the peripheral frame;
A grating disposed on the sub-bar; And
And a support shaft for supporting an intermediate portion of the auxiliary bar,
The sub-
At least one first sub-bar disposed at an interval in a horizontal direction, and at least one second sub-bar cross-disposed at the first sub-bar,
Wherein the grating portion is supported by the peripheral frame and the support shaft through the auxiliary bar,
Wherein the grating portion includes a support frame having a drainage passage formed in a vertical direction, and a perforated member on the support frame,
The reinforcing portion
A pair of first cradles provided on the peripheral frame so that both ends of the first sub bars are respectively received in the first cradles; And
And a second mounting groove that is recessed from the upper end and is recessed such that the lower surface of the second sub-bar is in contact with the upper surface of the first sub-bar, and both end portions of the second sub- And a pair of second holders mounted on the perimeter frame. The method according to claim 1,
And the second sub-bar is disposed on the first sub-bar. delete delete The method according to claim 1,
The reinforcing portion
And a blocking unit for preventing the end portion of the second sub-bar from separating from the second mounting groove. 6. The method of claim 5,
A cut-off groove is formed at an end of the second sub-bar,
Wherein the blocking unit is partially movable on the blocking grooves. The method according to claim 6,
And a part of the blocking unit is slidable on the blocking groove. 6. The method of claim 5,
Wherein the peripheral frame includes a storage block capable of receiving a grasping portion of the shielding unit on an outer surface thereof. The method according to claim 1,
And an upper end of the support shaft supports an intersection point of the first auxiliary bar and the second auxiliary bar. 10. The method of claim 9,
And a fixed unit mounted on an upper end of the support shaft at an intersection of the first auxiliary bar and the second auxiliary bar. The method according to claim 1,
And a projecting line is formed on the upper surface of the perforated member along the hole and the hole. 12. The method of claim 11,
The protruding lines are formed in an opposite direction,
Wherein the perforation member
A first region in which the protruded lines are formed along a first direction, and a second region in which the protruded lines are formed along a second direction. 12. The method of claim 11,
And an embossing is formed on the protruding line at intervals so as to prevent adhesion of foreign matter. The method according to claim 1,
And a fastening member coupled to the reinforcing portion at a lower portion of the support frame. The method according to claim 1,
Wherein the perforating member includes an extension extending downward of the grating body so as to surround the periphery of the support frame,
And a fastening member for fastening the reinforcing portion to the lower portion of the extended portion. The method according to claim 1,
Wherein the perforated member is provided with an opening,
And a garbage compartment is provided on a lower side of the perforated member at a position corresponding to the opening. 17. The method of claim 16,
And the garbage storage portion is disposed below the reinforcing portion. The method according to claim 1,
The reinforcing portion
And a support member formed on an outer surface of the peripheral frame to support an inner wall surface of the drain hole. The method according to claim 1,
Wherein a size of the hole formed in the perforated member is smaller than a size of the drain passage. The method according to claim 1,
Wherein the support frame is positioned on the auxiliary bar inside the perimeter frame,
A first projection and a second projection are formed on the outer surface of the support frame,
A circumferential frame protrusion is formed on the inner surface of the peripheral frame so as to prevent the first protrusion from being separated from the first protrusion when the support frame is laid,
Wherein the reinforcing portion includes a lock unit that is partly movable on the second projection when the support frame is laid so as to prevent the second projection from being separated.

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