KR102244292B1 - Heavy duty steel grating with supporting bar - Google Patents

Abstract

The present invention is to provide a heavy duty steel grating with high quality, which constitutes a steel grating, improves durability with respect to a heavy load, has excellent workability, and provides low detect rates. To this end, a supporting bar in which a binding groove is formed is installed between reinforcement beams constituting the heavy duty steel grating at an equal interval, and both end portions of the supporting bar are inserted into a concave part configured in the reinforcement beams to allow a lower end portion of the supporting bar to be welded in a state of being mounted on a lower horizontal bar of the reinforcement beams. Moreover, a bearing bar is inserted into each binding groove configured in the reinforcement beams to be welded, and a side bar and an end bar are welded and configured in both end portions of the reinforcement beams and the bearing bar and both end portions of the supporting bar.

Description

Heavy duty steel grating with support bar {HEAVY DUTY STEEL GRATING WITH SUPPORTING BAR}

The present invention relates to a high-strength steel grating, improving durability against heavy loads, and at the same time improving durability by replacing the member of the drainage space, which was particularly vulnerable to heavy loads, with a brace bar composed of a plate-shaped upright member. It is to provide a heavy-duty steel grating with a support bar configured to increase and prevent product deformation.

In general, steel grating is installed and used on the edge of a road or in a drainage in areas with a lot of walking such as schools, parks, apartments, etc. It functions as a cover and allows rainwater to flow in and drain, and prevent bulky foreign substances from entering the drainage. It simultaneously performs the function of the blocking structure to prevent it.

The general structure of the steel grating 100 comprises an end bar 101 composed of a flat iron as in FIG. 16 in a square shape of a standard, and a plurality of bearing bars 102 between the end bars 101 are arranged at equal intervals. It is installed and welded to the crossbar 103 to maintain the gap while supporting the bearing bar 102, so that the drain hole 104 is formed between the bearing bar 102 and the cross bar 103.

The steel grating 100 having the above configuration has no difficulty in performing the function of preventing the inflow of the drainage function and the relatively large dirt along with the cover function of the drainage channel, but it is not only easily deformed due to its poor durability against heavy loads, but also Because of this, noise was generated.

In addition, in the process of welding the crossbar 103 to the bearing bar 102, since the crossbar 103 is deformed by welding heat, there is a problem such as difficulty in welding work.

As a means to solve this problem, the inventors have previously applied and published patent publication No. 10-2012-0007726 "Steel Grating" (Patent Document 1), and Patent No. 10-1282934 registered by the present inventor "Steel Grating" ( Patent document 2) has been provided.

Examining the configuration of Patent Document 1, a bearing bar and a crossbar are installed at equal intervals between the end bars, and a conventional steel grating is constructed so that drainage holes are formed therebetween, but through holes are formed, and at both ends of the main body The reinforcing plate comprising the bent part is inserted between the drain holes, and the outer surface of the bent part of the reinforcing plate is in contact with the side surface of the bearing bar, and the upper surface of the body is configured to be maintained in parallel with the upper end of the bearing bar, and then the lower part of the bent part is welded Thus, the reinforcing plate was welded between the bearing bars.

Examining the configuration of Patent Document 2, a three-stage bent steel consisting of a reinforcing side plate and a support top plate is welded at equal intervals between the end bars on both sides of the steel grating, so that a space is formed therebetween, and a drain hole is formed in the space. After inserting this drilled drainage steel plate so that the side plates formed on both sides of the drainage steel plate come into contact with the reinforced side plate of the three-stage bent steel plate, the joint is welded to alternate the three-stage bent steel plate between the two end bars and the drainage steel plate with a drainage hole. It was made to be welded together.

In the case of the steel grating presented in Patent Document 1 and Patent Document 2, compared to the steel grating of Fig. 16, which was conventionally used, it has excellent durability against heavy loads, and there is no obstacle to use for the edge of the road, school, park, or semi-road road. However, it has a weak point to be applied to road crossings where a lot of loads are applied, or to drainage channels installed in port facilities that load and unload a lot of loads.

Therefore, separately manufactured steel gratings are provided for use in road crossings, heavy industry industrial facilities, port facilities, etc., but since they are manufactured in a standardized integral type while using relatively thick steel to improve the durability against loads, the weight is increased. It becomes heavy, and therefore, it is difficult to handle it by the worker alone, and there is inconvenience of having to use two or more workers or separate equipment, and the area of the drain hole is reduced to improve the rigidity, so that smooth drainage cannot be achieved. There was this.

As a means to compensate for these disadvantages, there is one patented by the present inventors in Patent No. 10-1329635 "High Strength Steel Grating" (Patent Document 3).

Examining the technical content of Patent Document 3, c-beams are welded to face each other at both ends of the end bar, and the bearing bar and crossbar are welded at equal intervals between the c-beams, and the space of each c-beam is A number of support rods are welded, and a bolt fixing plate with bolt fixing holes is welded on the inner side of the vertical plate of the C-beam to form a steel grating, so that it can be fastened and fixed with the adjacent steel grating.

Even in the case of the steel grating of Patent Document 3, it has excellent durability against heavy load and smooth drainage, and also has the advantage of having an anti-theft function because adjacent steel gratings are bound to each other. There was also a disadvantage that the durability against heavy loads was somewhat insufficient due to inadequate.

Patent Publication No. 10-2012-0007726 "Steel Grating" Patent No. 10-1282934 "Steel Grating" Patent No. 10-1329635 "High Strength Steel Grating"

An object of the present invention is to provide a high-quality heavy-duty steel grating with good workability and low defects while constructing a steel grating, improving durability against heavy loads.

As a means for solving the above problem, the present invention is to install a support bar having a binding groove formed between the reinforcing beams constituting a heavy-duty steel grating at equal intervals, so that both ends of the support bar are fitted into the concave portions configured in the reinforcing beam. As a result, the lower end of the brace bar is welded while being placed on the horizontal bottom bar of the reinforcing beam, and the bearing bar is fitted into each of the binding grooves formed in the brace bar and welded, and both ends of the reinforcing beam and the bearing bar, and both ends of the brace bar. It is composed by welding the sidebar and the endbar to.

In the present invention, the support bars having binding grooves formed between the reinforcing beams constituting the heavy-duty steel grating are installed at equal intervals, and both ends of the support bars are fitted into the concave inlets configured in the reinforcing beam, so that the lower end of the support bar is the reinforcing beam. By welding in the state of being placed on the lower horizontal bar of the brace, bearing bars are fitted into each of the binding grooves formed in the brace bar, and the reinforcing beam and both ends of the bearing bar, and side bars and end bars are welded to both ends of the brace bar. , It is possible to provide high-quality heavy-duty steel grating with good workability and low defects while improving durability against heavy loads, and the like.

1: A perspective view of a steel grating to be provided in the present invention
Figure 2: Plan configuration diagram of Figure 1
Figure 3: Sectional state diagram of the present invention
Figure 4: A state diagram of the sidebar and the endbar separated in the state of Figure 1
Figure 5: A perspective view of the main part of the present invention
Figure 6: An example diagram of a reinforcing beam used in the present invention
Figure 7: A perspective view of a support bar used in the present invention
Figure 8: Front configuration diagram of the support bar used in the present invention
Figure 9: A perspective view of another embodiment of the present invention
Figure 10: Plan configuration diagram of Figure 9
11: A cross-sectional configuration diagram of FIG. 10
Fig. 12: A perspective view of the main part of Fig. 10
13: An exemplary view of the reinforcing beam used in FIG. 10
Fig. 14: A perspective view of the support bar used in Fig. 10
Fig. 15: Front view of Fig. 14
Figure 16: A perspective view of a conventional steel grating

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

1 to 8 are state diagrams showing the configuration of the steel grating 10 to be provided in the present invention, the support bar 30 is welded at equal intervals between the reinforcing beams 20, and the support bar 30 ) The bearing bar 40 is fitted on the upper surface and then welded, and the reinforcing beam 20 and the bearing bar 40 are at both ends, and the side bar 50 and the end bar 60 are at both ends of the support bar 30. It is composed by welding.

The reinforcing beam 20 constituting the steel grating 10 of the present invention is a generally used "H" section steel, and vertical bars 22 and 23 are configured above and below the vertical bar 21, and the vertical bar Round-shaped upper and lower corners 24 and 25 are formed at the connecting portion where 21 and the upper and lower horizontal bars 22 and 23 are in contact, and concave portions 26 are formed on both sides of the reinforcing beam 20.

The support bar 30 welded to the concave inlet 26 of the reinforcing beam 20 at equal intervals is configured as follows.

That is, the support bar 30, the main body 39 constituting the support bar 30 is configured in a vertical plate shape, the upper end 31 has a binding groove 32 at equal intervals, and a side end portion configured on both sides (33) The upper and lower teeth 34 and the lower teeth 35 are configured, the cutting part 26 is formed between the upper teeth 34 and the upper end 31, and the bottom of the support bar 30 is curved. The mouth portion 38 is configured, and a lower end portion 38 is formed between the curved concave portion 38 and the lower surface tooth portion 35.

The depth (h2) of the binding groove (32) formed in the upper end (31) of the support bar (30) is configured to be the same as the height (h2') of the bearing bar (40).

The length h between the cut portion 36 and the lower end portion 38 of the support bar 30 is the same as the length h'of the concave inlet portion 26 formed on the side of the reinforcing beam 20, and the support bar ( The length h1 between the upper and lower ends 31 and 38 of 30) is the same as the upper length h1' of the constant flat bar 22 above the lower horizontal bar 23 of the reinforcing beam 20. .

In addition, the spacing of the reinforcing beams 20 located on both sides is adjusted according to the length of the support bar 30.

Therefore, when both side ends of the support bar 30 are inserted into the concave inlet 26 formed on the side of the reinforcing beam 20, the side ends 33 of the support bar 30 are vertical bars 21 of the reinforcing beam 20. The side faces are brought into contact, and at the same time, the lower end portion 38 of the support bar 30 is placed on the horizontal sewer bar 23 of the reinforcing beam 20.

In addition, while the constant flat bar 22 of the reinforcing beam 20 is located in the cutting portion 36 of the support bar 30, the upper end 31 of the support bar 30 and the constant flat bar of the reinforcing beam 20 ( 22) It will be located parallel to the top surface.

In addition, the upper and lower teeth 34 and 35 configured in the support bar 30 are located at the upper and lower edges 24 and 25 of the reinforcing beam 20, and at this time, the size of the upper and lower teeth 34 and 35 is adjusted to the upper and lower edges. (24) By configuring larger than (25), the side end portion 33, the lower end portion 38, and the cutting portion 36 of the support bar 30, the inner surface of the vertical bar 21 of the reinforcing beam 20, It is to be configured in close contact with the vertical and horizontal bars 22 and 23 without difficulty.

As described above, the support bars 30 are inserted between the reinforcing beams 20 and then welded. The plurality of support bars 30 are welded at equal intervals.

When welding is completed at equal intervals between the reinforcing beams 20 in the configuration as described above, the bearings cut in accordance with the standards in the binding grooves 32 formed at the upper end 31 of the support bars 30 The bar 40 is assembled with both ends parallel to both ends of the reinforcing beam 20 and then welded so that the bearing bar 40 is integrally assembled on the support bar 30.

At this time, the depth (h2) of the binding groove (32) configured in the support bar (30) is the same as the height (h2') of the bearing bar (40), so the support bar (30), the bearing bar (40), and the reinforcing beam ( The top surfaces of 20) are located parallel to each other.

When the welding of the bearing bar 40 to the binding groove 32 of the support bar 30 is completed, the side bar 50 at both ends of the reinforcing beam 20 and the bearing bar 40, and both ends of the support bar 30 ) And the end bar 60 is welded to complete the production of the steel grating 10 to be provided in the invention.

In carrying out the present invention, the reinforcing beam 20 ′ may be configured as a “c” section steel as shown in FIGS. 9 to 13 and used.

That is, the reinforcing beam 20' is composed of vertical bars 22' and 23' above and below the vertical bars 21', and the vertical bars 21' and the vertical bars 22' and 23' Round-shaped upper and lower edges 24 ′ and 25 ′ are formed at the connection part in contact with each other so that the concave inlet 26 ′ is formed in the reinforcing beam 20 ′.

The support bar 30 welded to the concave inlet 26 of the reinforcing beam 20 at equal intervals is the same as the support bar 30 shown in FIGS. 7 and 8, but once again described, it is configured as follows.

That is, the support bar 30 is composed of a main body 39 constituting the support bar 30 in the shape of a vertical plate, and the binding grooves 32 at the upper end 31 are formed at equal intervals, and the side ends configured on both sides ( 33) The upper and lower teeth 34 and the lower teeth 35 are configured, a cutting part 26 is formed between the upper teeth 34 and the upper end 31, and a curved concave portion is formed at the bottom of the support bar 30 To constitute (38), the lower end portion 38 is configured between the curved concave portion 38 and the lower surface tooth portion 35.

The depth h2 of the binding groove 32 formed in the upper end 31 of the support bar 30 is the same as the height h2' of the bearing bar 40.

The length h between the cut portion 36 and the lower end portion 38 of the support bar 30 is the same as the length h'of the concave inlet portion 26 formed on the side of the reinforcing beam 20, and the support bar ( The length h1 between the upper and lower ends 31 and 38 of 30) is the same as the upper length h1' of the constant flat bar 22' above the lower horizontal bar 23' of the reinforcing beam 20'. To be organized.

In addition, the spacing of the reinforcing beams 20' located on both sides is adjusted according to the length of the support bar 30.

Therefore, when both side ends of the support bar 30 are inserted into the concave inlet 26 ′ formed on the side of the reinforcing beam 20 ′, the side ends 33 of the support bar 30 are vertical bars of the reinforcing beam 20 ′. The (21') side is brought into contact, and at the same time, the lower end 38 of the support bar 30 is placed on the lower horizontal bar 23' of the reinforcing beam 20'.

In addition, while the constant flat bar 22' of the reinforcing beam 20' is located in the cutting part 36 of the support bar 30, the upper end 31 of the support bar 30 and the upper end of the reinforcing beam 20' It is located parallel to the upper surface of the horizontal bar (22').

In addition, the upper and lower teeth 34 and 35 configured on the support bar 30 are located at the upper and lower corners 24 ′ and 25 ′ of the reinforcing beam 20 ′, and at this time, the size of the upper and lower teeth 34 and 35 By configuring larger than the upper and lower edges 24' and 25', the side end 33, the lower end 38, and the cutting portion 36 of the support bar 30 are vertical bars of the reinforcing beam 20'. 21') The inner side and the upper and lower horizontal bars (22') and (23') are closely contacted without difficulty.

As described above, the support bars 30 are inserted between the reinforcing beams 20' and then welded. The plurality of support bars 30 are welded at equal intervals.

When welding is completed at equal intervals between the reinforcing beams 20 ′ in the configuration as described above, the brace bar 30 is cut in accordance with the standard in the binding groove 32 formed at the upper end 31 of the brace bar 30. The bearing bar 40 is assembled in parallel with both ends of the reinforcing beam 20' and then welded so that the bearing bar 40 is integrally assembled on the support bar 30.

At this time, the depth (h2) of the binding groove (32) configured in the support bar (30) is the same as the height (h2') of the bearing bar (40), so the support bar (30), the bearing bar (40), and the reinforcing beam ( 20') are positioned side by side.

When the welding of the bearing bar 40 is completed in the binding groove 32 of the support bar 30, the reinforcing beam 20 ′ and the side bar 50 are welded to both ends of the bearing bar 40 to form a steel grating (10). And, the steel grating 10 is installed in close contact with each other in the required number to be used.

In the case where the steel grating 10 is installed in the drainage passage and the scrap space remains, the support bar 30 may be cut to a required length and the end bar 60 may be welded to the cut part.

In the present invention configured as described above, a plurality of bearing bars 40 installed at equal intervals between the reinforcing beams 20 ′ are inserted into the binding grooves 32 of the brace bars 30 configured in a vertical plate shape, and are supported in a welded state. The bar 30 supports this.

The support bar 30 has both ends 33 fitted into the concave portions 26 and 26 ′ of the reinforcing beams 20 and 20 ′, and the lower end 38 is the reinforcing beams 20 and 20 ′. It is welded in a state placed on the horizontal sewer bars 23 and 23'.

Therefore, the load applied to the bearing bar 40 is supported by the brace bar 30, and the load applied to the brace bar 30 is supported by the reinforcing beams 20 and 20', so durability against heavy loads Stays high.

In addition, since the bottom surface of the support bar 30 is composed of a curved concave portion 37, the support force against the load is maintained high while reducing the weight.

In addition, the top teeth 34 and the bottom teeth 35 configured above and below the side end portions 33 of the support bar 30, the side end portions 33 of the support bars 30 are connected to the reinforcing beams 20 and 20 ′. When fitting into the concave inlet (26) (26'), the upper and lower ends of the side end (33) are formed at the concave inlet (26) (26') of the reinforcing beam (20) (20') and the upper and lower edges (24) (24'). ) (25) (25'), the side end portion 33, the cutting portion 36, and the lower portion 38 of the support bar 30, the vertical bar of the reinforcing beam 20, 20' It is in close contact with (21) (21'), the constant flat bars 22, 22', and the lower horizontal bars 23, 23', and since they are welded in the above-described state, the robustness of welding can be improved.

In particular, since the bearing bar 40 is welded while being fitted into the binding groove 32 of the support bar 30, a solid welding operation is easily performed without welding defects.

(10)--Steel grating (20)(20')--Reinforced beam
(21)(21')--vertical bar (22)(22')--constant horizontal bar
(23)(23')--Horizontal bar (24)(24')--Upper edge
(25)(25')-lower corner (26)(26')-concave part
(30)--Strut bar (31)--Top
(32)--Binding groove (33)--Side end
(34)--Upper mounting (35)--Lower mounting
(36)--Cutting part (37)--Curved part
(38)--Bottom part (39)--Body
(40)--bearing bar (50)--side bar
(60)--Endbar

Claims (7)

In constructing the heavy-duty steel grating, the support bar 30 having the binding groove 32 formed in the concave portion 26 of the reinforcing beam 20 is installed by inserting the side ends 33 of both sides thereof, and the support bar 30 The lower end 38 of the reinforcing beam 20 is placed on the horizontal lower bar 23 of the reinforcing beam 20, and in the cutting part 36 configured at the upper end 31 of the support bar 30, the constant level of the reinforcing beam 20 By positioning the bar 22, the upper end 31 of the brace bar 30 and the top surface of the constant flat bar 22 of the reinforcing beam 20 are positioned side by side, and the side end portion 33 of the brace bar 30 The reinforcing beam 20 and the support bar 30 are integrally formed by welding in a state in which they are in contact with the vertical bar 21 of the reinforcing beam 20, and in the binding groove 32 formed in the support bar 30 Heavy-duty steel grating with a support bar, characterized in that the bearing bar 40 is inserted and then welded. The reinforcing beam (20) of claim 1, wherein the side end (34) of the brace bar (30) is formed with an upper and lower surface mounting (34) and a lower surface mounting (35), and the side end (33) of the brace bar (30) is a reinforcing beam (20). ) Heavy-duty steel grating formed with a brace bar, characterized in that it allows easy contact with the vertical bar (21). According to claim 1, By configuring a curved concave portion (37) between the lower end portion (38) configured on both sides of the support bar (30), while reducing the weight of the support bar (30), the support bar (30) for heavy load Heavy-duty steel grating with a support bar, characterized in that the durability of the product can be improved. The support bar according to claim 1, wherein the depth (h2) of the binding groove (32) formed in the upper end (31) of the support bar (30) is the same as the height (h2') of the bearing bar (40). Formed heavy-duty steel grating. The method of claim 1, wherein the length (h) between the cutting portion (36) and the lower portion (38) of the support bar (30) is the length (h1') of the concave portion (26) formed on the side of the reinforcing beam (20) Heavy-duty steel grating with a support bar, characterized in that it is configured in the same way. According to claim 1, The length (h1) between the upper and lower ends (31) (38) of the support bar (30) is at the top of the lower horizontal bar (23) of the reinforcing beam (20), the upper end of the constant flat bar (22) Heavy-duty steel grating with a support bar, characterized in that it is configured the same as the length (h1'). According to claim 1, wherein the reinforcing beam (20) is one of "H"-beam or "c"-beam. Heavy-duty steel grating with a support bar, characterized in that.

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