AU2018304963B2 - A modular metal structure for multipurpose enlosures with enhanced stability - Google Patents
A modular metal structure for multipurpose enlosures with enhanced stability Download PDFInfo
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- AU2018304963B2 AU2018304963B2 AU2018304963A AU2018304963A AU2018304963B2 AU 2018304963 B2 AU2018304963 B2 AU 2018304963B2 AU 2018304963 A AU2018304963 A AU 2018304963A AU 2018304963 A AU2018304963 A AU 2018304963A AU 2018304963 B2 AU2018304963 B2 AU 2018304963B2
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- Prior art keywords
- threaded hole
- structural member
- protrusion
- cylindrical
- hole
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/18—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements
- F16B7/185—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements with a node element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B12/00—Jointing of furniture or the like, e.g. hidden from exterior
- F16B12/44—Leg joints; Corner joints
- F16B2012/446—Leg joints; Corner joints with three-dimensional corner element, the legs thereof being inserted in hollow frame members
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/01—Frameworks
- H02B1/014—Corner connections for frameworks
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
A method of assembling a modular metal structure for multipurpose enclosures resulting in increased mechanical strength and a simple method of assembling characterized by an axial comer module comprising a base cube with three protrusions projecting from the base cube, each protrusion having a singular threaded hole made on the center of the outward face of it, and two semi obround slots on its two peripheral sides, and a structural member made to match the design of the protrusions of the axial corner module.
Description
Title of the invention
A modular metal structure for multipurpose enclosures with enhanced stability.
Field of invention
This invention pertains to Electro-Mechanical Engineering, specifically to an enclosure assembly that incorporates advanced corner modules and specially designed structural components to enhance the stability of the structure.
Background to the invention
Currently, various methods are employed to assemble modular metal structures for enclosures. Some of these methods use axial corner modules, which typically consist of a base cube with three protrusions. These axial corner modules are connected to structural members through various mechanisms. Often, the protrusions or the base cube, or both, feature multiple holes for connecting to structural members using bolts. However, assembling modular metal structures involves numerous axial corner modules and structural members, which necessitates securing them with a large number of bolts. This process is both time-consuming and comparatively expensive for the end user. Additionally, the connections between the corner modules and structural members require regular maintenance due to the tendency of bolts to loosen over time.
Furthermore, drilling multiple holes into a base cube through its faces results in the removal and wastage of metal, which weakens the axial corner module and makes it more susceptible to stress. Since multipurpose enclosures are designed to support heavy components and materials, a weakened axial corner module cannot withstand the stress, leading to instability and compromising the overall security of the structure.
The existing structural members are made to match their respective corner modules, resulting in relatively a weaker and costly end product.
The closest prior art considered is EP 0729696, which discloses a corner module with holes designed to receive structural frames or structural members. The cylindrical metal block, or projection, used to connect the structural member with the corner module, also leads to loose connections due to its fully cylindrical shape at the point where it interfaces with the bolt. Additionally, the corner module lacks any supplementary fixing arrangement or locking mechanism to ensure the firmness and stability of the structure.
The claimed invention provides a solution to those problems and presents a stable module structure or enclosure with the help of axial corner modules employing extended protrusions with semi-obround slots at the edge of the said protrusions, together with special arrangements in the structural member to form required assembly of enclosure. The advanced arrangements make such structure stronger, stable, time saving in assembling and cost effective and/or at least provide the public with a useful choice.
Technical Problem
Existing modular structure of multipurpose enclosures are having drawbacks such as instability or loosen connection due to basic implementations in the members such as shorter protrusions, meeting threaded hole each other inside the corner module due to said shorter protrusions, lack of additional locking mechanism between corner module and structural members or frame members.
Technical Solution
The claimed invention relates to a modular metal structure for multipurpose enclosures characterized by an axial corner module comprising a base cube with three protrusions perpendicular on its surfaces, each having not more than one hole and two semi obround slots made at the two peripheral sides of each protrusion and projecting from the base cube which has also only a threaded hole to receive a bolt and (ii) a structural member made to match the design of the protrusions of the axial corner module both the hole and two semi-obround slots. It provides enhanced strength to modular metal structures of multipurpose enclosures.
Accordingly, in one aspect the present invention relates to a modular metal structure for multipurpose enclosures with enhanced stability, comprising:
a plurality of corner modules, each corner module including: a base cube having a length M, the base cube comprising: a threaded hole with a depth m located on one face, wherein M>m; three protrusions extending perpendicularly from three adjoining faces of the base cube, each protrusion comprising: a length N; a threaded hole with a depth n located at the distal end of each protrusion, wherein n<N; two semi-obround slots located on the edges of two peripheral sides at the distal end of each protrusion; a plurality of structural members, each structural member comprising: a square cross-sectional body with an open edge along one side; a series of threaded holes evenly spaced along two adjoining sides of the open edge; a special non-threaded hole positioned near each end of the structural member for receiving a cylindrical metal block; a plurality of cylindrical metal blocks, each block comprising: a hole across the cylindrical body; a flat surface on the cylindrical body; a riveting collar; and a secondary threaded hole oriented perpendicularly to the said hole; wherein the structural members are fastened to the corner modules using the cylindrical metal blocks, forming the required modular metal structure with enhanced stability. Certain statements that appear below are broader than what appears in the statements of the invention above. These statements are provided in the interests of providing the reader with a better understanding of the invention and its practice. The reader is directed to the accompanying claim set which defines the scope of the invention.
Brief description of the drawings
Figure 1 - shows a drawing of the axial corner module consisting of the base cube (la) with and the three protrusions (lb, lc and Id) extended from the base cube over perpendicular axis to each other. Each protrusion contains a threaded hole (le, If and lg) on the face of the distal end and semi-obround slots (lhl, lh2, lil, 1i2, ljl and lj2) made at the edge of the two peripheral sides of each protrusion.
Figure 2a - shows a cross sectional view of the axial corner module with clear indication of threaded hole which receive bolts in to them.
Figure 2b - shows another cross sectional view of the axial corner module particularly showing two semi-obround slots made on the edges of two peripheral sides of each protrusion.
Figure 3a - shows the structural members (2a, 2b and 2c), wherein each is similar to a box bar of square or rectangular cross section but having an opening over one of its edges whereas this can be formed by bending a plate. and bolts (3a, 3b and 3c) and cylindrical metal blocks (9a, 9b and 9c) which are to be placed inside the said structural member.
Figure 3b - illustrates the way in which the three protrusions of the axial corner module to be secured to the structural members.
Figure 3c - describes the way in which the bolts are being secured to the axial corner module.
Figure 3d - provides a complete illustration of the axial corner module fixed to structural members.
Figure 3e - provides a further illustration of the axial corner module fixed to structural members.
Figure 4 - illustrates the cross sectional view of a structural member (2a, 2b or 2c) and the way it fixed with cylindrical metal block (9a).
Figure 5 - provides detailed drawings of the cylindrical metal block (9a) which includes a hole (9al), threaded hole (9a2) and a riveting collar (9a3), where the top surface made flat to complete tapering of a bolt through the hole of the metal block.
Figure 6 - Illustrates the assembling mechanism of the metal structure, the way fixing structural member to another metal structures through the corner module using metal blocks and bolts.
Figure 7 - shows the modular metal structure with covers/doors.
Figure 8- shows one example of a cabinet or enclosure fully assembled using the modular metal structure 06.
Detailed description of the invention
The claimed invention entails a modular metal structure for multipurpose enclosures which is characterized by; a plurality of axial corner modules; and plurality of structural members specially designed to receive metal blocks at both ends which made to match the design of protrusions of the axial corner module.
The corner module contains a base cube (la of figure 1), which the length is 'M' with three protrusions (lb, lcand Id of figure 1) extended from it, which the length is 'N'. Each protrusion extends outwardly from the three adjoining faces of the base cube. At the center of the outward face of each protrusion, there is a threaded hole (le, If and lg of figure 1), which the length is 'n'. The depth of the threaded hole is slightly less than the length of a protrusion (n<N). Two semi-obround slots (lhl, lh2, lil, li2, ljl and lj2 of figure 1) are made at the outer edge of the face of the two peripheral sides of each protrusion as illustrated in figure 2b.
The protrusions (lb, I and Id in figure 1) of the axial corner module comprises the same general cross sectional configurations or shapes as the cross sectional openings of the structural members (2a, 2b and 2c in figure 3a) with smaller tolerance to receive protrusions in to the structural member opening.
The base cube (la in figure 1) with perpendicular protrusions contains a threaded hole at its bottom or the opposite surface to a said protrusions with depth of 'm'. The depth of the threaded hole is shorter than the length of the base cube (m<M). The threaded hole is used to secure the plinth to the axial corner module or to fix lifting hooks to lift the assembled modular metal structure, if necessary.
A structural member (2a, 2b and 2c as shown in figure 3 a) is a hollow metal fabrication made with three 900 bends. As a result, the cross sections of a structural member have three curved corners and one open corner as shown in the figure 4. A structural member has threaded holes at an equal distance (as shown as 'y' in figure.
Holes are provided on both sides of the open corners of cross section of each structural member, and further protruded to provide more threads as shown in the said figure.
The length of a structural member varies and could be selected according to the desired dimensions of the required size of the modular metal structure. The first threaded hole of the either end of a structural member is made identical to the other threaded holes and is used to meet and overlap semi-obround slots made on two peripheral sides of a protrusion.
At both ends of a structural member, immediately after the first threaded hole, there is a hole (3e in figure 3a) (which is herein referred to as a'special hole') to fix a cylindrical metal block which has special flat surface to tightly fit the structural member to protrusion of the corner module. (9a in figure 3 a).
There is a hole (3d in figure 3a), which is comparatively larger than the aforesaid special hole and made on the corresponding opposite side of the structural member with no holes and parallel to the aforesaid special hole, to insert a cylindrical metal block into the structural member.
The cylindrical metal block (9a) is shown in detail at Figure 5. A hole is made through the center of the cylindrical metal block (9al) in order to provide the space to insert a bolt (3a). The said hole (9al) is not threaded. The bolt (3a) inserted through the hole as shown in figure 3 c. The cylindrical metal block also has a threaded hole (9a2) and a reverting collar (9a3) on at the distal end. This reverting collar is used to rivet the cylindrical metal block (9a) to the structural member (2c) through the special hole.
The structural member (2c of figure 3b) fastened to the protrusion of the axial corner module and tightened using the bolt (3a) ensuring stability and rigidity of the structure.
Threaded holes pattern in the structural member protects uniformity, since there is a threaded hole (9a2 in figure 5) in the cylindrical metal block which is reverted on to a structural member as shown in the figure 3d.
Mode of invention
The method of assembling the modular metal structure using the invented axial corner modules and the structural members with the help of cylindrical metal block comprises the steps of: inserting the reverting collar of the cylindrical metal block in to the special hole of the structural member through the hole (3d in figure 3a), which is comparatively larger than the aforesaid special hole and made on the corresponding opposite side of the structural member with no holes and parallel to the aforesaid special hole, and bringing distal collar end to the special hole (3e).
The diameter of the end without a hole of the cylindrical metal block is identical to the diameter of the larger hole made on the corresponding opposite side of the structural member with no holes and parallel to the aforesaid special hole The reverting collar comes out through the aforesaid special hole (3e) and then is riveted by pressing the collar.
A bolt is used to fastening protruded member into structural member through the said riveted metal block of the structural member. The bolt (3a of figure 3a) is inserted into the hole (9al) of the cylindrical metal block in this case. Similarly, each of the protrusions of the base cube is inserted with structural member.
The structural member is guided over the protrusion until its last hole reaches and fitted with the semi-obround slot. It is embossed to have the same semi-obround slot shape.
The bolt (3a in figure 3a) inserted into the hole (9al in figure 5) made through the cylindrical metal block, whereas flattened surface of the metal block ensures the complete sheet the metal block with the bolt and tightened the attachment between protrusion of the corner module with structural member.
When the bolt is being screwed into the protrusion, the structural member is fixed firmly making the complete structure steady and stronger than those presently available.
The semi-obround slot of the protrusion provides additional stability to the structure by facilitating the insertion of embossed slot with threads, which also facilitates to receive a bolt to fix any attachments to the structure.
The term "comprising" as used in this specification and claims means "consisting at least in part of'. When interpreting statements in this specification, and claims which include the term "comprising", it is to be understood that other features that are additional to the features prefaced by this term in each statement or claim may also be present. Related terms such as "comprise" and "comprised" are to be interpreted in similar manner.
In this specification where reference has been made to patent specifications, other external documents, or other sources of information, this is generally for the purpose of providing a context for discussing the features of the invention. Unless specifically stated otherwise, reference to such external documents is not to be construed as an admission that such documents, or such sources of information, in any jurisdiction, are prior art, or form part of the common general knowledge in the art.
Claims (9)
1. A modular metal structure for multipurpose enclosures with enhanced stability, comprising: a plurality of corner modules, each comer module including: a base cube having a length M, the base cube comprising: a threaded hole with a depth m located on one face, wherein M>m; three protrusions extending perpendicularly from three adjoining faces of the base cube, each protrusion comprising: a length N; a threaded hole with a depth n located at the distal end of each protrusion, wherein n<N; two semi-obround slots located on the edges of two peripheral sides at the distal end of each protrusion; a plurality of structural members, each structural member comprising: a square cross-sectional body with an open edge along one side; a series of threaded holes evenly spaced along two adjoining sides of the open edge; a special non-threaded hole positioned near each end of the structural member for receiving a cylindrical metal block; a plurality of cylindrical metal blocks, each block comprising: a hole across the cylindrical body; a flat surface on the cylindrical body; a riveting collar; and a secondary threaded hole oriented perpendicularly to the said hole; wherein the structural members are fastened to the corner modules using the cylindrical metal blocks, forming the required modular metal structure with enhanced stability.
2. The modular metal structure as claimed in Claim 1, wherein the depth m of the threaded hole in the base cube is less than the length M of the base cube, such that M>m.
3. The modular metal structure as claimed in Claim 1, wherein the protrusions extend from the three adjoining faces of the base cube, each extending perpendicularly to the other, and having the same length.
4. The modular metal structure as claimed in Claim 1, wherein the cross-section of the base cube and the protrusions is square, with the cross-sectional dimensions of the protrusions being smaller than that of the base cube.
5. The modular metal structure as claimed in Claim 1, wherein the depth n of each threaded hole in the protrusions is less than the length N of the protrusions, and the center axis of the threaded hole is perpendicular to the cross-sectional surface of the protrusion.
6. The modular metal structure as claimed in Claim 1, wherein each structural member has a clearance at both ends along the open edge, and the special non threaded hole is positioned as the second hole from each end along the adjoining faces of the open edge.
7. The modular metal structure as claimed in Claim 1, wherein the threaded holes of the structural members are recessed inward and extend beyond the structural member to accommodate longer threads.
8. The modular metal structure as claimed in Claim 1, wherein a larger hole is positioned opposite the special non-threaded hole on the structural member to facilitate the insertion of the cylindrical metal block.
9. The modular metal structure as claimed in Claim 1, wherein each cylindrical metal block includes an extended riveting collar for securing the block to the structural member through the special non-threaded hole, enhancing the stability of the structure.
slot obround Half - 1h2 slot obround Half - 1h1 slot obround Half - 1i1 slot obround Half - 1i2 1j1 - Half obround slot 1j2 - Half obround slot
1e - Threaded hole 1g - Threaded hole
1f - Threaded hole
1d - Protrusion 3 1c - Protrusion 2 1b - Protrusion 1
1a - Base cube embellishments and holes threaded protrusions, 3 cube, base the depicting module corner Axial 1c
1i1 1g 1a 1i2
1h1 1j2
1e 1f Figure 1
1d 1h2
1j1 1b
1c 1jt 1i2 1j2 1i1 1f
1h2
1h1
1b
1e
1d 1a
A-A Cross Sectional view of the Axial Corner Module
1a - Base cube 1b - Protrusion 1 1c - Protrusion 2 1e 1d - Protrusion 3 1d A 1e - Threaded hole 1h2 1h1 1f - Threaded hole
1j1 1a 1g - Threaded hole 1i1 1h1 - Half obround slot 1h2 - Half obround slot 1b 1c 1i1 - Half obround slot
1g 1i2 - Half obround slot 1j2 1f 1i2 1j1 - Half obround slot 1j2 - Half obround slot
A 2a - Threaded hole
A-A 1e P 1h2 1d R 1j1 1a 1f X 2a R Y X
Figure 2a
B-B Cross Sectional view of the Axial Corner Module
1h2 1e 1h1 1d 1d - Protrusion 3 1e - Threaded hole B B 1h1 - Half obround slot 1h2 - Half obround slot
B-B
P 1e 1h2 P Y Y 1d 1h1
Figure 2b block metal cylindrical the of side collar riveting for hole Small - 3e block metal cylindrical inserting for hole Larger - 3d member cylindrical the fix to holes of set large one bolts, block, metal cylindrical members, Structural 4a, 4b, 4c - Structural members ends
Y - Distance between two holes
9b - Cylindrical metal block 9a - Cylindrical metal block 9c - Cylindrical metal block
2b - Structural member 2 2a - Structural member 1 2c - Structural member 3
3b Bolt 2 3a Bolt 1 3c Bolt 3
Y
2b
2c 9b 3a 3e
4b
Figure 3a
@ 3b
D @ 3c
@ 4a 4c
3d
9c
9a
2a
4a, 4b, 4c - Structural members ends
Y - Distance between two holes
9b - Cylindrical metal block 9c - Cylindrical metal block 9a - Cylindrical metal block
2b - Structural member 2 2c - Structural member 3 2a - Structural member 1
1b Protrusion 1 1c Protrusion 2 1d - Protrusion 3 3b 1a Base cube
3b Bolt 2 3c Bolt 3 3a Bolt 1
10 member
Structural members, cylindrical metal block, bolts, one large set of holes to fix the cylindrical
Y
2b
9b
4b
2c
3a 9a 1c
1a Figure 3b
D D 00 1d 4C
1b
4a
2a
3c
@
(A)
Q
9b - Cylindrical metal block 9c - Cylindrical metal block 9a - Cylindrical metal block
2c - Structural member 3
2a - Structural 2b -member Structural member
member
3a Bolt 1 3b Bolt 3c 2 Bolt 3
members, block, bolts, one large set of holes to fix the cylindrical
2b
2c
3a Figure 3e
3b
3c
9a
9c
Structural
2a
Cross sectional view of the structural member
A 2a or 2b or 2c
I
9a 2a Structural member 1 A 2b Structural member 1
2c Structural member 1 9a Cylindrical metal block
A-A VIEW
2a or 2b or 2c
B B 2a or 2b or 2c
9a
B-B 9a VIEW
Figure 4 metal block with two protrusions on both sides and a cross sectional view
3a or 3b or 3c
9a - Cylindrical metal block
9a1 - Hole 9a2 - Threaded hole 9a3 - Riveting collar
C 9a1 9a or 9b or 9c
9a3
9a2 B A 9a1
9a3
9a2 A-A B-B VIEW VIEW
9a1 9a1
9a2
SECTIONAL C-C VIEW VIEW Figure 5
WO 2019/016617
11/13
Lifting hook
16-
17 18-Lifing hook4
of
Figure 6
Shows the metal structure with the covers/doors
to
06/10
a
Figure 7
Snows an example of a cabinet constructed from a construction assembly according to the present invention
0
Figure 8
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LK19389 | 2017-07-17 | ||
| LK1938917 | 2017-07-17 | ||
| PCT/IB2018/052618 WO2019016617A1 (en) | 2017-07-17 | 2018-04-16 | A method of assembling a modular metal structure for multipurpose enclosures |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2018304963A1 AU2018304963A1 (en) | 2020-02-27 |
| AU2018304963B2 true AU2018304963B2 (en) | 2024-10-03 |
Family
ID=65015020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2018304963A Active AU2018304963B2 (en) | 2017-07-17 | 2018-04-16 | A modular metal structure for multipurpose enlosures with enhanced stability |
Country Status (2)
| Country | Link |
|---|---|
| AU (1) | AU2018304963B2 (en) |
| WO (1) | WO2019016617A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102220483B1 (en) | 2013-02-22 | 2021-02-25 | 지-모듈러 홀딩, 인크. | Modular building units, and methods of constructing and transporting same |
| US9845595B2 (en) * | 2014-04-30 | 2017-12-19 | Julian Bowron | Structural modular building connector |
| KR102690732B1 (en) | 2015-08-14 | 2024-07-31 | 지-모듈러 홀딩, 인크. | Connectors for modular buildings |
| EP3821087B1 (en) | 2018-07-12 | 2025-03-19 | Z-Modular Holding, Inc | Locating pin assembly for a modular frame |
| EP4176499B1 (en) * | 2020-07-06 | 2024-06-05 | Elsteel Denmark A/S | A modular frame structure of an enclosure for low-voltage switchgear and controlgear assemblies with improved degree of protection (ip code) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0729696B1 (en) * | 1992-12-07 | 2000-02-09 | Erik Landsperg Logstrup | A three dimensional frame construction and a use thereof |
| CN202076681U (en) * | 2011-05-31 | 2011-12-14 | 慈溪奇国电器有限公司 | Connector used for medium/low-voltage switch cabinet bracket |
| US20130256251A1 (en) * | 2012-03-30 | 2013-10-03 | General Electric Company | Electrical system enclosures |
| AU2012338487B2 (en) * | 2012-07-10 | 2015-04-09 | Nadie KAHATAPITIYA ALGAMA | A metal structure with heavy duty corner elements |
| WO2014155162A1 (en) * | 2013-09-13 | 2014-10-02 | Kahatapitiya Algama Nadie | Elements for providing variable angles in a metal frame for enclosure systems |
-
2018
- 2018-04-16 AU AU2018304963A patent/AU2018304963B2/en active Active
- 2018-04-16 WO PCT/IB2018/052618 patent/WO2019016617A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| AU2018304963A1 (en) | 2020-02-27 |
| WO2019016617A1 (en) | 2019-01-24 |
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