CN218149477U - Special-specification grid floor - Google Patents

Abstract

A special grid floor comprises a top plate and a rib structure, wherein the rib structure and the top plate are integrally cast by aluminum alloy, a plurality of through holes are formed in the top plate to form a ventilation volume of more than 50%, and therefore the requirement of semiconductor manufacturing process cleanliness can be met.

Description

Special-specification grid floor

Technical Field

The present application relates to a floor, and more particularly, to a special grid floor having a high ventilation rate.

Background

The existing elevated floors, such as TWM626914 patent, TWM626915 patent, TWM626017 patent, TWM626032 patent, TWM625241 patent, TWM625242 patent, TWM625267 patent, TWM625270 patent, TWM625289 patent, TWM596253 patent and the like, can be used for the ventilation floors of the process area besides the floor of the plant area of the semiconductor process, but the ventilation rate is less than twenty percent, and the requirement of the ventilation rate cannot be met.

However, the grid floor for the gutter cover is manufactured by welding, such as the TW536257 patent, which is easily deformed and easily generates defects and cracks during the welding process.

Furthermore, the air flow of the conventional grid floor is too small, so that the air return is insufficient, and the requirement of the cleanliness of the semiconductor manufacturing process cannot be met.

In addition, the structural strength of the conventional grid floor is often insufficient, so that when heavy equipment in the semiconductor manufacturing process is loaded on the grid floor, the grid floor is easily broken.

On the other hand, the conventional grid floor also has the problem of being too heavy, which not only wastes materials, but also increases the manufacturing cost.

Therefore, how to overcome the above problems of the prior art has become a problem to be overcome in the industry.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned deficiencies in the prior art, the present application provides a specific grid floor that at least partially solves the problems of the prior art.

The utility model provides a special grid floor includes: an upper plate having a ground side and a honeycomb side opposite to each other, wherein the upper plate has a plurality of through holes formed therein to communicate the ground side with the honeycomb side, thereby forming a ventilation amount of 60% or more; and a plurality of rib structures which are integrally cast with the antenna plate by aluminum alloy and are arranged on the honeycomb side of the antenna plate to form a plurality of recesses, so that each recess is provided with two through holes, wherein the rib structures are sequentially defined with a first rib, a second rib, a third rib, a fourth rib, a fifth rib and a sixth rib from the edge of the antenna plate to the middle, the heights of the first rib, the second rib, the fourth rib and the sixth rib relative to the honeycomb side are at least 25 mm to serve as main ribs, and the heights of the third rib and the fifth rib relative to the honeycomb side are lower than 25 mm to serve as middle ribs.

In the aforesaid special grid floor, the plurality of concave portions are arranged in an array to form a honeycomb structure on the honeycomb side.

In the above-mentioned special-grid floor, the first rib is formed at the edge of the ceiling to become the edge rib of the special-grid floor, so as to serve as the frame of the special-grid floor for fixing the foot seat.

In the aforesaid special grating floor, the height of the first rib relative to the honeycomb side is 30.5 mm, the sum of the heights of the first rib and the top plate is 33.5 mm, and the thickness of the top plate is 3 mm.

In the aforesaid special grating floor, the height of the second rib, the fourth rib and the sixth rib relative to the honeycomb side is 25 to 30.5 mm.

In the aforesaid special grating floor, the height of the third rib and the fifth rib relative to the honeycomb side is 15 to 18 mm.

In the aforesaid special grid floor, the width of the first rib is 4 to 7 mm.

In the aforesaid special grid floor, the width of the second rib, the fourth rib and the sixth rib is 3 to 8 mm.

In the aforesaid special grating floor, the width of the third rib and the fifth rib is 3 to 3.2 mm.

In the above-mentioned special grid floor, the rib structure further includes a plurality of auxiliary ribs having a height lower than the middle rib, and the plurality of auxiliary ribs are correspondingly formed in the respective recesses, so that a single auxiliary rib is disposed in a single recess. For example, the plurality of auxiliary ribs extend in a single direction without being staggered with each other. Alternatively, the height of the auxiliary ribs relative to the honeycomb side is at least 8 mm, and the width thereof is 3 to 3.2 mm.

In the foregoing special grating floor, the rib structure forms a # -shaped rib with two sixth ribs in the longitudinal and transverse directions to divide the special grating floor into four regions, 16 sub-regions are formed between adjacent second, third, fourth and fifth ribs in the four regions, each sub-region has a concave portion, the first to fifth ribs are symmetrically distributed with the # -shaped rib as a reference, another concave portion is formed at the center of the # -shaped rib formed by the sixth rib, an auxiliary rib is arranged in the concave portion, and a wing plate is formed around the ceiling plate, so that the height of the auxiliary rib and the thickness of the wing plate are both greater than the thickness of the ceiling plate, thereby improving the strength of the special grating floor at the middle.

In the above-mentioned special grid floor, 17 other sub-regions are spaced from each other by the second, third, fourth and fifth ribs in the rib shaped like a Chinese character 'jing', and each of the sub-regions has two through holes to form a ventilation volume of more than 60%.

In the above-mentioned special grid floor, the rib structure forms a cross-shaped rib with the sixth rib in the longitudinal and transverse directions, so as to divide the special grid floor into four regions, 16 sub-regions are formed among the adjacent second, third, fourth and fifth ribs in the four regions, each sub-region has a concave portion, the first to fifth ribs are symmetrically distributed with the cross-shaped rib as the reference, and a thimble position is formed at the central position of the cross-shaped rib formed by the sixth rib.

In the foregoing special-specification grating floor, the first rib is used for supporting a foot stool fixed on the special-specification grating floor.

In the foregoing special-specification grating floor, the first rib and the second rib form foot seats at four corners of the special-specification grating floor, and the foot seats are fixed on the supporting foot frames.

Therefore, in the special grid floor, the aluminum alloy is integrally formed and cast mainly through the top plate and the rib structures, so that the special grid floor is not deformed and is not easy to generate defects, fracture and other problems, and compared with the prior art, the special grid floor has excellent reliability.

Furthermore, through the design of the through holes, the ventilation amount is more than 60%, so that the ventilation amount can be increased to meet the requirement of the cleanness of the semiconductor process.

In addition, the main ribs of the rib structure are at least 25 mm high relative to the honeycomb side, so that the structural strength of the special grid floor is improved, and compared with the prior art, the special grid floor can bear heavier machine equipment in a semiconductor manufacturing process, so that the problem that the special grid floor is cracked in use is avoided.

Drawings

Fig. 1A is a perspective view of a first embodiment of the special grid floor of the present application.

Fig. 1B is a front plan view of fig. 1A.

FIG. 1C is a cross-sectional view of FIG. 1B taken along line C-C in one direction.

FIG. 1D is a cross-sectional view of FIG. 1B taken along line D-D in one direction.

Fig. 1E is a perspective view of fig. 1A from another perspective.

Fig. 2A is a perspective view of a second embodiment of the special grid floor of the present application.

Fig. 2B is a front plan view of fig. 2A.

FIG. 2C is a cross-sectional view of FIG. 2B taken along line C-C in one direction.

FIG. 2D is a cross-sectional view of FIG. 2B taken along line D-D in one direction.

Fig. 2E is a perspective view of fig. 2A from another angle.

Wherein the reference numerals are as follows:

1,2 special specification grid floor

1a,2a rib structure

1b,2b foot stool

1c,2c thimble position

1d,2d wing plate

10 20 day board

10a,20a ground plane side

10b,20b honeycomb side

100 200 perforation of

11 21 first Rib

12 22 second Rib

13 23 third Rib

14 24 fourth Rib

15 25 fifth Rib

16 26 sixth Rib

17a,18, 28 auxiliary Ribs

d1 to d6, d8 width

Total height of H

h 0-h 6, h8 height

Length of L

R, S concave part

Sum of T

t0, t1 thickness

w separation distance

Detailed Description

The following description of the embodiments of the present application is provided by way of specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein.

It should be understood that the structures, ratios, sizes, etc. shown in the drawings and described in the specification are only used for understanding and reading the disclosure and are not used for limiting the practical limitations of the present application, so that the modifications, ratios, and sizes of any structures and changes of the ratio or the size adjustment are not essential to the technical spirit and the scope of the present application. In addition, the terms "upper", "lower", "left", "right" and "one" used in the present specification are used for clarity of description, and are not intended to limit the scope of the present application, and the relative relationship between the terms and the terms may be changed or adjusted without substantial technical change.

Fig. 1A to 1E are schematic views of a first embodiment of the special grid floor 1 of the present application. The special grid floor 1 of the present embodiment is used for carrying a heavy load, which carries about 500 kg.

The special grating floor 1 is provided with a top plate 10 and a plurality of rib structures 1a arranged on the top plate 10, so that the top plate 10 and the plurality of rib structures 1a are integrally cast by aluminum alloy, deformation is avoided when the special grating floor 1 is manufactured, and the problems of defects, breakage and the like are avoided.

The antenna panel 10 has a ground side 10a and a honeycomb side 10b opposite to each other, and the honeycomb side 10b is provided with the rib structures 1a in the longitudinal and transverse directions, respectively, to form a plurality of recesses S between the longitudinal and transverse rib structures 1a, wherein fig. 1C and 1D only show the longitudinal rib structures 1a, and the transverse rib structures 1a are arranged in the same manner as the longitudinal rib structures 1a to be symmetrical, so that the cross-section of the transverse rib structures 1a is omitted.

In the present embodiment, the top plate 10 is substantially rectangular, like a square plate, the length L is 500 mm (or 450 mm) and the thickness t0 is 3 mm, a wing plate 1d (the thickness t1 is 6 mm, which is greater than the thickness t0 of the top plate 10) is formed around the top plate 10, and foot seats 1b are formed on four corners of the special grid floor 1, the bottom portions of the foot seats are L-shaped convex portions (or L-shaped concave portions), and the foot seats 1b are respectively fixed to four supporting foot frames (not shown). For example, the foot seat 1b is used to adjust the total height H of the special grid floor 1 so that a plurality of special grid floors 1 can be arranged on the same horizontal plane when being spliced.

Furthermore, the ground side 10a is a flat surface and the recesses S are arranged in an array to form a honeycomb structure having a plurality of pin locations 1c (approximately at the corners of a square area consisting of every four recesses S) on the honeycomb side 10 b.

The rib structure 1a is formed by sequentially defining a first rib 11, a second rib 12, a third rib 13, a fourth rib 14, a fifth rib 15 and a sixth rib 16 from the edge of the top plate 10 to the middle (or from the left to the right to the middle as shown in fig. 1B and fig. 1C), wherein the heights h1 to h2, h4 and h6 of the first to second, fourth and sixth ribs 11 to 12, 14 and 16 relative to the honeycomb side 10B are at least 25 millimeters (mm), the heights h3 and h5 of the third and fifth ribs 13 and 15 relative to the honeycomb side 10B are less than 25 mm, so that the first to second, fourth and sixth ribs 11 to 12, 14 and 16 are used as main ribs, the third and fifth ribs 13 and 15 are used as middle mm, the first to fifth ribs 11 to 15 are arranged symmetrically from the sixth rib 16 to the left and right (or from the top to the bottom as shown in fig. 1B), and the distance between the third and fifth ribs 12 and 15 is 48 and the fourth ribs 16.

In the embodiment, the first rib 11 is formed at the edge of the ceiling 10 to become the edge rib of the special grid floor 1, so as to be used as the frame of the special grid floor 1 for fixing the foot seat 1b. For example, the height H1 of the first rib 11 relative to the honeycomb side 10b is 30.5 mm (equal to the height H6 of the sixth rib 16 relative to the honeycomb side 10 b), which is greater than the heights H2 to H5 of the second to fifth ribs 12 to 15 relative to the honeycomb side 10b, the sum T of the height H1 of the first rib 11 relative to the honeycomb side 10b and the thickness T0 of the antenna board 10 of the embodiment is 33.5 mm (i.e., T = H1+ T0), and the total height H of the height of the base 1b, the height H1 of the first rib 11 relative to the honeycomb side 10b, and the thickness T0 of the antenna board 10 is the height of the special-grid floor 1, which is 38 mm.

Furthermore, the heights h 2-h 6 of the second to sixth ribs of the rib structure 1a may be the same or different according to the requirement, and the arrangement of the main ribs (i.e., the second to sixth ribs 12-16) between the first rib 11 and the middle recesses R and S is as shown in fig. 1C. For example, the height h2 of the second rib 12 relative to the honeycomb side 10b is 29 mm, the height h4 of the fourth rib 14 relative to the honeycomb side 10b is 25 mm, the height h6 of the sixth rib 16 relative to the honeycomb side 10b is 30.5 mm, and the heights h3 and h5 of the third and fifth ribs 13 and 15 relative to the honeycomb side 10b are 15 mm, wherein two longitudinal and transverse sixth ribs 16 form a rib grid to divide the specific grid floor 1 into four regions, 16 sub-regions are formed between the adjacent second rib 12, third rib 13, fourth rib 14 and fifth rib 15 in each region, each sub-region has a recess S, and a recess R in another embodiment is formed in the central portion of the rib grid. Further, the thickness of the top plate 10 in the recess R may be larger than the thickness t0 of the top plate 10 at other positions or the same as the thickness t0 of the top plate 10, and a single auxiliary rib 17a is configured in the recess R to improve the compressive strength of the special grid floor 1 at the middle position. For example, since the height h2 of the second rib 12 relative to the honeycomb side 10b is lower than the height h1 of the first rib 11 relative to the honeycomb side 10b, when the special-gauge grating floor 1 is fixed on a foot stand for an elevated floor, the four feet of the special-gauge grating floor 1 are supported by the bottom of the first rib 11.

In addition, the widths d 1-d 6 of the ribs may be the same (e.g., the third to fifth ribs 13-15) or different, as shown in FIG. 1C. For example, the width d1 of the first rib 11 is 7 mm, the width d2 of the second rib 12 is 3.6 mm, the width d3 of the third rib 13 is 3 mm, the width d4 of the fourth rib 14 is 3 mm, the width d5 of the fifth rib 15 is 3 mm, and the width d6 of the sixth rib 16 is 3.6 mm.

Further, each rib extends longitudinally or transversely, and the same rib may have different widths at different positions where it extends, as desired. For example, the width D1 of the local rib can be adjusted, such that the width D1 of the first rib 11 at the opposite sides of the honeycomb side 10b shown in fig. 1D is smaller, wherein the width D1 of the first rib 11 is 4mm, which is smaller than the width D1 of the first rib 11 at the middle of the honeycomb side 10b shown in fig. 1C, so as to reduce the weight of the specific grid floor 1, and the widths D2, D3, D4, D5, D6 of the second, third, fourth, fifth and sixth ribs 12, 13, 14, 15, 16 are not changed.

In addition, a plurality of auxiliary ribs 17a and 18 with a volume much smaller than that of other ribs may be additionally provided to the rib structure 1a as required, as shown in fig. 1C, wherein the heights h0 and h8 (e.g., 8 mm) of the auxiliary ribs relative to the honeycomb side 10b are lower than the heights h3 and h5 of the middle rib relative to the honeycomb side 10b, and the width d8 of the auxiliary ribs is 3 mm. For example, the auxiliary ribs 17a and 18 are formed in the respective recesses R and S so as to extend in a single direction, and the single auxiliary ribs 17a and 18 are disposed in the single recesses R and S as shown in fig. 1C.

Further, the specific grating floor 1 forms a plurality of through holes 100 communicating the ground side 10a and the honeycomb side 10b on the ceiling 10, and the honeycomb side 10b is divided into four regions (four corner regions) by the sixth ribs 16 (the vertical and horizontal two sixth ribs 16 form a cross-shaped rib), each region forms 16 sub-regions (corresponding to the position of the recess S), and the cross-shaped ribs extend outward (cross region), 17 other sub-regions (corresponding to the positions of the recesses R and S) can be spaced by the ribs (the second ribs 12, the third ribs 13, the fourth ribs 14 and the fifth ribs 15), so that each sub-region has two elongated through holes 100 to form a ventilation amount of 60% or more.

In the present embodiment, the positions of the through holes 100 are arranged corresponding to the recesses R and S. For example, two through holes 100 are formed on each recess R, S, and the two through holes 100 are spaced side by side and the auxiliary ribs 17a,18 separate the through holes 100 of each row; in addition, the recess S between the first and second ribs 11, 12 has only one through hole 100, i.e. no auxiliary rib 18 is provided.

Therefore, the special grid floor 1 can not only increase the ventilation amount, but also save material and weight and increase the bearing weight by the design of the through holes 100.

In addition, the thickness t0 of the ceiling 10 of the special-specification grid floor 1 is smaller, and the heights h3 and h5 of the rib structures 1a are also smaller, that is, the heights h3 and h5 of the middle ribs (third and fifth ribs 13 and 15) are much smaller than the heights h1, h2, h4 and h6 of the main ribs (first, second, fourth and sixth ribs 11, 12, 14 and 16), so as to save materials and reduce weight.

Fig. 2A to 2E are schematic views of a second embodiment of the special grid floor 2 of the present application. The load of the special grid floor 2 of this embodiment is greater than 500 kg, and the difference from the first embodiment is the change of the local height of the rib structure 2a, so the same parts will not be described again.

As shown in fig. 2A to 2E, a single sixth rib 26 in the longitudinal and transverse directions forms a cross-shaped rib to divide the special grid floor 1 into four regions, 16 sub-regions are formed between the second rib 22, the third rib 23, the fourth rib 24 and the fifth rib 25 adjacent to each region, each sub-region has a recess S, and a thimble position 2c is formed at the central portion of the cross-shaped rib.

In the present embodiment, the thickness T0 of the antenna board 20 is 3 mm, the height H1 of the first rib 21 relative to the honeycomb side 20B is 30.5 mm, the sum T of the height H1 of the first rib 21 relative to the honeycomb side 20B and the thickness T0 of the antenna board 20 is 33.5 mm, the height of the foot seat 2B, the height H1 of the first rib 21 relative to the honeycomb side 20B and the total height H of the thickness T0 of the antenna board 20 are 38 mm, the thickness T1 of the wing board 2d is 6 mm, the first rib 21 is formed at the edge of the antenna board 20 to become the rib of the specific grid floor 2 to serve as the frame of the specific grid floor 2, and the first to fifth ribs 21 to 25 are distributed in a left-right symmetrical manner (or in an up-down symmetrical manner as shown in fig. 2B) based on the sixth rib 26.

In the rib structure 2a, as shown in fig. 2C, the height h2 of the second ribs 22 relative to the honeycomb side 20b is 30.5 mm, the height h4 of the fourth ribs 24 relative to the honeycomb side 20b is 26 mm, the height h6 of the sixth ribs 26 relative to the honeycomb side 20b is 30.5 mm, and the heights h3 and h5 of the third and fifth ribs 23 and 25 relative to the honeycomb side 20b are both 18 mm. For example, since the height h2 of the second rib 22 relative to the honeycomb side 20b is equal to the height h1 of the first rib 21 relative to the honeycomb side 20b, when the specific grating floor 2 is fixed on a foot stand for an elevated floor, the four feet of the specific grating floor 2 are supported by the bottoms of the first rib 21 and the second rib 22.

In addition, the widths d 1-d 6 of the ribs may be the same or different as required, as shown in FIG. 2C. For example, the width d1 of the first rib 21 is 7 mm, the width d2 of the second rib 22 is 4mm, the width d3 of the third rib 23 is 3.2mm, the width d4 of the fourth rib 24 is 3.6 mm, the width d5 of the fifth rib 25 is 3.2mm, and the width d6 of the sixth rib 26 is 8 mm.

Further, each rib extends longitudinally or transversely, and the same rib may have different widths at different positions where it extends, as desired. For example, the widths D1, D2, D6 of the local ribs can be adjusted, such that the widths D1, D2, D6 of the first, second and sixth ribs 21, 22, 26 at two opposite sides of the honeycomb side 20b are smaller as shown in fig. 2D, wherein the width D1 of the first rib 21 is 5.24mm, the width D2 of the second rib 22 is 3.2mm, and the width D6 of the sixth rib 26 is 6.91mm, which are respectively smaller than the widths D1, D2, D6 of the first, second and sixth ribs 21, 22, 26 at the middle of the honeycomb side 20b shown in fig. 2C, so as to reduce the weight of the grid floor 2, while the widths D3, D4, D5 of the third, fourth and fifth ribs 13, 14, 15 are unchanged.

In addition, the height h8 of the auxiliary rib 28 relative to the honeycomb side 20b is lower than the height of the middle rib, and the width d8 thereof is 3.2mm, and the auxiliary ribs 28 are correspondingly formed in the recesses S, and one auxiliary rib 28 is disposed in a single recess S as shown in fig. 2C, so that each sub-region has two elongated through holes 200 to form a ventilation amount of 60% or more. In the present embodiment, the recess S between the first and second ribs 21, 22 has only one through hole 200 (as shown in fig. 2C), i.e. no auxiliary rib 18 is disposed.

Therefore, the special grid floor 2 can not only increase the ventilation amount, but also save materials and reduce weight and increase the bearing weight by the design of the through holes 200.

In addition, the heights h3 and h5 of the rib structures 2a are also smaller, i.e., the heights h3 and h5 of the middle ribs (the third and fifth ribs 23 and 25) are much smaller than the heights h1, h2, h4 and h6 of the main ribs (the first, second, fourth and sixth ribs 21, 22, 24 and 26), so as to save materials and reduce weight.

To sum up, the special-specification grid floor 1,2 of this application mainly adopt aluminum alloy integrated into one piece casting through this day board 10, 20 and these a plurality of rib structures 1a,2a, and horizontal rib is the same with the arrangement of vertical rib and be the symmetry formula to can not produce the deformation when making this special-specification grid floor 1,2, and difficult defect and fracture scheduling problem of producing, so compare in prior art, the special-specification grid floor 1,2 of this application not only the reliability is splendid, and be favorable to promoting the yield and save the cost of manufacture.

Furthermore, the design of the through holes 100 and 200 can form more than 60% of ventilation volume, thereby increasing the ventilation volume, meeting the requirement of higher air return volume around the semiconductor processing equipment and in a shower room, and improving the cleanliness of the semiconductor processing.

In addition, the heights h1, h2, h4 and h6 of the main ribs of the rib structures 1a and 2a relative to the honeycomb sides 10b and 20b are at least 25 mm, so that the structural strength of the special grid floors 1 and 2 is improved, and the special grid floors 1 and 2 can bear heavy equipment in the semiconductor manufacturing process, so that the problem that the special grid floors 1 and 2 are broken in use is avoided. Furthermore, the height h 1-h 6 and the width d 1-d 6 of the ribs are adjusted according to the load bearing capacity of the special grid floors 1 and 2, so that the materials of the special grid floors 1 and 2 are saved, and the weight is reduced.

In addition, the structural strength of the special grid floor panels 1 and 2 can be further improved by the design of the auxiliary ribs 17a,18 and 28.

The above-described embodiments are merely illustrative of the principles and utilities of the present application and are not intended to limit the application. Any person skilled in the art can modify the above-described embodiments without departing from the spirit and scope of the present application. The scope of protection of the application is therefore intended to be covered by the claims.

Claims (17)

1. A special grid floor, comprising:

an upper plate having a ground side and a honeycomb side opposite to each other, wherein the upper plate has a plurality of through holes formed therein to communicate the ground side with the honeycomb side, thereby forming a ventilation amount of 60% or more; and

and a plurality of rib structures which are integrally cast with the antenna plate by using an aluminum alloy and are arranged on the honeycomb side of the antenna plate to form a plurality of recesses, so that each recess is provided with two through holes, wherein the rib structures are sequentially defined with a first rib, a second rib, a third rib, a fourth rib, a fifth rib and a sixth rib from the edge of the antenna plate to the middle, the heights of the first rib, the second rib, the fourth rib and the sixth rib relative to the honeycomb side are at least 25 mm to serve as main ribs, and the heights of the third rib and the fifth rib relative to the honeycomb side are lower than 25 mm to serve as middle ribs.

2. The geogrid flooring according to claim 1, wherein the plurality of recesses are arranged in an array to form a honeycomb structure on the honeycomb side.

3. The special grid floor as claimed in claim 1, wherein the first rib is formed at the edge of the ceiling to become the edge rib of the special grid floor, so as to serve as the frame of the special grid floor.

4. The geogrid floor according to claim 1, wherein the height of the first rib is 30.5 mm relative to the honeycomb side, and the sum of the heights of the first rib and the ceiling is 33.5 mm, and the thickness of the ceiling is 3 mm.

5. The special grid flooring as claimed in claim 1, wherein the second, fourth and sixth ribs have a height of 25 to 30.5 mm with respect to the honeycomb side.

6. The special grid flooring as claimed in claim 1, wherein the height of the third and fifth ribs with respect to the honeycomb side is 15 to 18 mm.

7. The geogrid floor according to claim 1, wherein the width of the first rib is 4 to 7 mm.

8. The special grid floor as claimed in claim 1, wherein the width of the second, fourth and sixth ribs is 3 to 8 mm.

9. The special grid floor as claimed in claim 1, wherein the third and fifth ribs have a width of 3 to 3.2 mm.

10. The special grid floor as claimed in claim 1, wherein the rib structure further comprises a plurality of auxiliary ribs having a height lower than the middle rib, and the plurality of auxiliary ribs are formed in the respective recesses, such that a single auxiliary rib is disposed in a single recess.

11. The contour grid flooring as recited in claim 10, wherein said plurality of auxiliary ribs extend in a single direction without being staggered with respect to each other.

12. The special grid flooring of claim 10, wherein the height of the auxiliary ribs with respect to the honeycomb side is at least 8 mm and the width thereof is 3 to 3.2 mm.

13. The grid floor of claim 1, wherein the rib structure is formed with two ribs in a cross shape in longitudinal and transverse directions to divide the grid floor into four regions, 16 sub-regions are formed among the adjacent second, third, fourth and fifth ribs in the four regions, each sub-region has a concave portion, the first to fifth ribs are symmetrically distributed with respect to the cross rib, and another concave portion is formed in a central portion of the cross rib formed by the sixth ribs, in which an auxiliary rib is disposed, and a wing plate is formed around the ceiling, so that the height of the auxiliary rib and the thickness of the wing plate are both greater than the thickness of the ceiling, thereby increasing the strength of the grid floor in the middle.

14. The special grid floor as claimed in claim 13, wherein 17 other sub-areas are spaced by the second, third, fourth and fifth ribs in the rib shape, and each sub-area has two of the through holes to form a ventilation amount of 60% or more.

15. The special grid floor as claimed in claim 13, wherein the rib structure forms a cross-shaped rib with one sixth rib in longitudinal and transverse directions to divide the special grid floor into four regions, 16 sub-regions are formed between adjacent second, third, fourth and fifth ribs in the four regions, each sub-region has a recess, the first to fifth ribs are symmetrically distributed with respect to the cross-shaped rib, and a thimble position is formed at a central portion of the cross-shaped rib formed by the sixth rib.

16. The special grid floor as claimed in claim 1, wherein the first rib is used for supporting a foot rest fixed on the special grid floor.

17. The special grid floor as claimed in claim 1, wherein the first and second ribs have foot seats formed at four corners of the special grid floor, the foot seats being fixed to supporting legs.

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