KR20100093188A

KR20100093188A - Prefabricated structure using square tyoe bar

Info

Publication number: KR20100093188A
Application number: KR1020090012259A
Authority: KR
Inventors: 양경호
Original assignee: 양경호
Priority date: 2009-02-16
Filing date: 2009-02-16
Publication date: 2010-08-25

Abstract

The present invention relates to a prefabricated structure using a rectangular hollow bar, a rectangular hollow bar cut to a predetermined length, and a plurality of inner and outer connecting rods formed so as to be inserted and separated at both ends of the rectangular hollow bar three-dimensional, four In the prefabricated structure consisting of a three-way to five-way three-dimensional connector formed by dividing the inner and outer connecting body protruding in the direction, five directions,

The rectangular hollow bar has a rectangular cross section, and protrusions protruding to face each other are formed at the centers of the inclined openings of the fitting grooves formed long in the longitudinal direction while being recessed inwards.

The fitting protrusion protruding detachably into the fitting grooves formed on each side of the rectangular hollow bar is formed to be perpendicular to the support body, and each of the upper and lower surfaces of the fitting protrusion faces each other at the inlet of the fitting groove. It characterized in that it comprises a binding member is formed in a symmetrical shape is formed in the locking groove that is inserted into the slide so as to enable the slide movement protruding.

Description

Prefabricated structure using square tyoe bar}

The present invention relates to a prefabricated structure using a rectangular hollow bar, and more particularly, it is possible to connect and assemble to form one hexahedron shape using a rectangular hollow bar, as well as to continuously connect the shape of the cube in the up, down, left and right directions. It is possible to manufacture prefabricated structures. In particular, it is possible to support the shelf by attaching the fastening member to increase the bonding force of the prefabricated structure and to attach the finishing plate. The present invention relates to a prefabricated structure configured to be manufactured to be rigidly connected as well as to be able to be firmly connected in a non-rotating state and to be repeatedly assembled and disassembled repeatedly.

The prefabricated display stand, which is generally known under the trade name Combi-Rak, has a hexahedron shape using a three-dimensional connector formed by hollow pipes cut to a predetermined length and a plurality of connecting rods inserted into the ends thereof in three, three, and four directions. It is connected and assembled to form continuously in the up, down, left, and right directions, such a prefabricated display stand is easy to assemble and disassemble, easy to dismantle and easy to vary the structural shape of the display rack according to the product display space. In addition, there is an advantage that the size can be adjusted up and down has been used a lot of stores for decoration or merchandise display in many stores.

However, the three-dimensional connector, which is applied to the conventional prefabricated display stand, is formed in a circular shape in which the connecting rods protruding in three to five directions are circular, and the hollow pipes are connected to the angular connecting rods protruding from the three-dimensional connector. Since a circular hollow bar having a cross section is used, when a torsion stress is applied to the circular hollow bars assembled to the connecting rods protruding in each direction of the three-dimensional connector, the corresponding circular hollow bars are rotated. In the display rack, the connection between the three-dimensional connector and the circular hollow bar is not only unstable, but also causes a problem such as easy relaxation or separation. In addition, such a prefabricated display rack has a circular hollow bar in each direction connecting rod protruding from the three-dimensional connector. After disassembly and disassembly If the work is repeated several times, it has been pointed out that the angular connecting rod into which the circular hollow bar is fitted and the inner surface of the circular hollow bar are worn out have a closed end that causes loosening, causing many problems in reuse. .

Therefore, the pipe connector for the prefabricated display rack, which is configured to firmly connect and connect the three-dimensional connector and the circular hollow bar even in the case of repeated assembly and disassembly several times in view of the problems shown in the conventional prefabricated display rack, has been proposed in Patent No. 497921. There is a bar.

However, in the above-described conventional technology, a three-dimensional connector for connecting and assembling a circular hollow bar is divided into two, and the structure is configured to push the other three-dimensional connector with a control screw rod screwed to one of the three-dimensional connector of the divided two-dimensional connector. The adjustment screw rod is rotated in the screw tightening direction when the adjustment screw rod screwed in the screw hole of the one-dimensional three-dimensional connector in the state of inserting the connecting rod protruding in each direction of both three-dimensional connector at the end of the circular hollow bar to be By pushing the other three-dimensional connector, the two-dimensional connector is open to each other, so that the connecting rods of each of the two-dimensional connector are oriented on the inner surface of the end of the circular hollow portion, and the advantage of being able to be firmly supported on the inner surface of the end of the circular hollow portion. And again When the screw assembly of the one-dimensional three-dimensional connector is screwed to rotate the adjustment screw hole in the screw loosening direction, the force for pushing the other three-dimensional connector is no longer removed, so that the connecting rods formed in the two-dimensional three-dimensional connector at each end of the circular hollow portion Since there is an advantage that the two-sided connector and the circular hollow bar can be easily separated and disassembled from the inner surface, this prior art repeats the operation of assembling and disassembling the assembled display stand several times using the three-dimensional connector and the circular hollow bar. Although it can provide an advantage that can be firmly assembled three-dimensional connector and a circular hollow bar, the prior art described above when a plurality of connecting rods protruding in each direction when combining the two-sided three-dimensional connector is formed in a circular cross section When combined to achieve The aforementioned connecting rods to rotate the phenomenon that when a torsion stress was applied circular hollow bar is inserted in the assembly in each of which is pointed out a disadvantage that there remain still did not resolve the problem.

The present invention was created in order to solve the problems described in the prior art as described above, by using a rectangular hollow bar connected to each of a plurality of connecting rods formed three-dimensionally protruding toward three, four, and five directions in the three-dimensional connector When the prefabricated structure is manufactured, the two sides of the hollow hollow bars that are connected to each other in the three to five directions from the three-dimensional connector are connected to each other so as to bind neighboring rectangular hollow bars to form a right angle with each other, thereby increasing the bonding force of the prefabricated structure and simultaneously turning the shelf. It is also intended to support the finishing plate, and also in the three-dimensional connector for connecting the angular hollow bar in the three-dimensional, four-direction, five directions each of the plurality of connecting rods formed in a three-dimensional direction toward the three-dimensional direction of the hollow hollow With a square cross section so that it can be inserted at both ends of the bar By the invention, it will put a further object to hexagonal when assembled hayeoteul the prefabricated structure with a hollow hexahedral shape so that the bars can be firmly assembled in a state of not being rotated.

The present invention as a means for achieving the above object,

An inner and an outer connection in which a rectangular hollow bar cut to a predetermined length and a plurality of inner and outer connecting rods formed to be inserted and separated at both ends of the rectangular hollow bar are projected in three directions, four directions, and five directions in three dimensions. In the prefabricated structure consisting of a three-way to five-way three-dimensional connector divided into a body,

In addition, the upper surface of the support body of the upper and lower sides of the support body of the binding member is formed in a state forming a plane with the fitting protrusion, the lower surface of the support body is to fit the fitting protrusion in the fitting groove formed in the rectangular hollow bar. At the time of not protruding from the rectangular hollow bar is formed an extension protrusion protruding to a thickness thicker than the fitting protrusion, characterized in that the support body of the binding member is formed with an assembly hole penetrating the upper, lower both sides. .

In addition, the inner and outer corner fitting stones which are inserted into the corner insertion spaces of the hollow hollow bars in each of the plurality of inner and outer connecting rods protruding in the three to five directions from the inner and outer connector bodies of the three to five direction three-dimensional connectors. It is characterized by the fact that it is formed from one or more parts.

In addition, the inner and outer connector bodies are provided on the inner and outer connecting rods of two of the plurality of inner and outer connecting rods protruding in the three to five directions from each of the inner and outer connector bodies of the three to five direction three-dimensional connectors. A pair of binding protrusions for binding to the elastic band is characterized in that the protrusion formed to face each other.

In addition, the five-way three-dimensional connector is inserted into the insertion hole of the inner connector body to expand the inner corner fitting protrusions, characterized in that the adjustment bolts are screwed into the screw holes of the outer connector body is formed in a separate state, respectively. It is done.

According to the present invention, the prefabricated structure manufactured by using the rectangular hollow bar has a solid hollow bar assembled by three-way to five-way three-dimensional connectors so that the assembly state is not only solid but also based on each of the three-way and five-way three-dimensional connectors. By connecting the rectangular hollow bars connected to form a right angle as a binding member more firmly, and further solidifying the rectangular hollow bars connected to form a right angle based on the three-way to five-way three-dimensional connector. By using the binding member to support the shelf to display the goods as well as to provide the effect of attaching the finishing plate for closing the side or back of the prefabricated structure in a sealed state, and also in the three directions to Elastic vanes on inner and outer connector bodies of 5-way solid connectors May be bound to the (O-rings), there is an advantage to provide an effect that in order to prevent the transfer or loss of components during storage.

When described in detail according to the accompanying drawings a specific embodiment of the prefabricated structure using a rectangular hollow bar according to the present invention.

1 is an assembled state diagram of one embodiment of a prefabricated structure for explaining the present invention, Figure 2 is an assembled state plan view of one embodiment of a prefabricated structure of the present invention, Figure 3 is a cross-sectional view taken along line AA of FIG. 5 is a perspective view of a separated state of the binding member for increasing the binding force of the prefabricated structure of the present invention, FIG. 5 is a cross-sectional view of the separated hollow bar and the binding member of the present invention, and FIGS. 6 and 7 are rectangular hollows of the prefabricated structure of the present invention. 8 is an exploded perspective view of the three-way three-dimensional connector of the present invention, Figures 9 and 10 are a front view and a plan view of the coupling state of the three-way three-dimensional connector of the present invention, Figure 11 FIG. 10 is a cross-sectional view taken along line BB, and FIG. 12 is an exploded perspective view of the four-way solid connector of the present invention, and FIGS. 13 and 14 are a front view and a plan view of the coupled state of the four-way solid connector of the present invention. 15 is a cross-sectional view taken along line CC of FIG. 13, FIG. 16 is an exploded perspective view of a five-way three-dimensional connector of the present invention, FIG. 17 is a front view of a coupled state of the five-way three-dimensional connector of the present invention, and FIG. The DD line cross section is shown.

Reference numeral 1 denotes a prefabricated structure.

The prefabricated structure 1 is prefabricated using a rectangular hollow bar 2 having a rectangular cross section, a three-way solid connector 3, a four-way solid connector 4, and a five-way solid connector 5. .

First, the structure of the square hollow bar 2 for constructing the prefabricated structure 1 will be described.

As shown in the drawing, the rectangular hollow bar 2 has a rectangular cross section and a hollow inside, and a fitting groove 21 having a concave recessed structure is formed in the center of each of the slopes. It is formed one by one in the longitudinal direction of the rectangular hollow bar (2), the projections 22 protruding in the direction facing each other is formed in the opening inlet of each of the fitting groove (21).

Next, the three-way solid connector 3 for assembling the rectangular hollow bar 2 will be described.

The three-dimensional solid connector (3) is located at the corners of the prefabricated structure (1) to connect the rectangular hollow bar (2) in three directions, the three-dimensional solid connector (3) is the inner, outer connector body (3a) 3b), the inner and outer connecting bodies are formed with inner and outer connecting rods 31 and 32 protruding in three-dimensional directions.

Each of the inner and outer connecting rods 31 and 32 includes at least inner and outer corner fitting protrusions 33 and 34 inserted into the corner inserting spaces 23 formed at the corners of the rectangular hollow bar 2. One or more are formed, in the case of the three-way three-dimensional connector (3), each of the inner connecting rod 31 is formed with only one inner corner fitting protrusion 33, while each of the outer connecting rod 32, the outer corner fitting protrusion Three 34 are formed.

In addition, each of the two inner and outer connecting rods 31 and 32 protruding in two directions among the plurality of inner and outer connecting rods 31 and 32 formed to protrude in three directions to the three-dimensional solid connector 3. When the inner and outer connector bodies 3a and 3b are normally assembled, two pairs of binding protrusions 35 and 36 protrude to face each other, and thus, two pairs of binding protrusions 35 and 36 are formed. After assembling the inner and outer connector bodies (3a) and (3b) in a state facing each other, and then to bind the pair of binding projections (35, 36) with an elastic band (6) or an O-ring, the inner, The outer connector body (3a) (3b) does not appear to be separated, so that the plurality of inner and outer connecting rods 31, 32 protruding in three directions can be simultaneously inserted into the end of the rectangular hollow bar (2) do.

In addition, the three-way three-dimensional connector (3) is provided with an adjustment bolt (7) for extending the inner and outer connector body (3a) (3b) assembled in a state that is elastically bound by the elastic band (6), The adjustment bolt 7 is screwed into the screw hole 38 formed to penetrate inward from the inclined surface 37 formed in a diagonal direction at the corner portion where the three sides of the outer connector body 3b meets the inner connector body 3a. A plurality of inner and outer connecting rods 31 and 32 protruding in three directions by extending the inner and outer connector bodies 3a and 3b by pushing the inclined plane 39 formed in the square hollow portion It is to be connected firmly to the inner surface of the end of (2).

Next, a four-way solid connector 4 for connecting the rectangular hollow bar 2 in three-dimensional four directions will be described.

The four-way three-dimensional connector (4) is used to connect the rectangular hollow bar (2) in four directions located on the upper, lower, left, right edges of the prefabricated structure (1), the four-way three-dimensional connector (4) is also divided into the inner and outer connector body (4a, 4b), each of the inner and outer connector body is formed with a plurality of inner and outer connecting rods (41, 42) protruding toward three-dimensional four directions It is.

Each of the inner and outer connecting rods 41 and 42 has two inner and outer corner fitting protrusions 43 and 44 respectively inserted into the corner insertion spaces 23 formed at the four corners of the rectangular hollow bar 2. Each of the inner and outer connecting rods 41 and 42 protruding in opposite directions among the inner and outer connecting rods 41 and 42 is provided with the inner and outer connecting bodies 4a and 4b, respectively. When assembled normally, two pairs of binding protrusions 45 and 46 are formed to protrude to face each other. In this way, the two pairs of binding protrusions 45 and 46 face each other so that the inner and outer connector bodies ( After assembling the 4a) and 4b, the inner and outer couplings are connected to each of the binding protrusions 45 and 46 with the elastic band 6 or the O-ring as in the three-dimensional solid connector 3. The bodies 4a and 4b are coupled to each other so that the phenomenon of separation does not occur. Gyeolbong 41 and 42 at the same time it is possible to insert into the end of the square hollow bar (2).

In addition, the four-way three-dimensional connector (4) is provided with an adjustment bolt (7) for extending the inner and outer connector body (4a, 4b) assembled in a state that is elastically bound by the elastic band (6), The adjusting bolt 7 is screwed into a screw hole 48 formed to penetrate inwardly from the concave indentation surface 37 formed concave at the edge portion where two surfaces of the outer connector body 4b meet, and thus the inner connector body 4a. It is configured to act to push the vertical section 49 formed in the).

The adjusting bolt 7 extends the inner and outer connector bodies 4a and 4b to be separated from each other, and the plurality of inner and outer connecting rods 41 and 42 protruding in four directions are connected in four directions. It is to be connected in tight contact with the inner surface of the end of each of the hollow parts (2).

Next, a five-way solid connector 5 for connecting the square used bar 2 in three-dimensional five directions will be described.

The five-way three-dimensional connector (5) is used to connect the rectangular hollow bar (2) in five directions to be located in a portion other than the corner portion and the edge portion of the prefabricated structure (1), the five-way three-dimensional connector ( 5) is also divided into the inner and outer connector body (5a) (5b), each of the inner and outer connector body is formed with a plurality of inner and outer connecting rods (51, 52) protruding toward three-dimensional three-way have.

Inner and outer corner fitting protrusions 53 and 54 are also formed in each of the inner and outer connecting rods 51 and 52, which are inserted into corner insertion spaces 23 formed in the four corners of the rectangular hollow bar 2. When the inner and outer connector bodies 5a and 5b are normally coupled to each other, the inner and outer corner fitting stones 53 are provided in four inner and outer connecting rods 51 and 52 which are assembled to face each other. (54) is formed, and the inner connector body (5a) four corner fitting protrusions (53a) are inserted into the four corner insertion space 23 formed in the four corner portions of the rectangular hollow bar 2 independently ) Is formed, and the inclined protrusion 53b protruding in the diagonal direction is formed at the inner end of each of the four corner fitting protrusions 53a.

In addition, the four inner and outer connecting rods 51 and 52 formed in the five-way solid connector 5 are projected in opposite directions from each other of the four inner and outer connecting rods 51 and 52 coupled to face each other. In each of the two inner and outer connecting rods, two pairs of binding protrusions 55 and 56 protruding to face each other are formed, and the inner and outer connecting bodies 5a and 5b are normally assembled as described above. The binding protrusions 55 and 56 of each pair face each other, and when the binding protrusions 55 and 56 of the pair are coupled to each other with the elastic band 6 in a state in which they are assembled to face each other, the inner and outer sides thereof. The connector body (5a) (5b) is coupled to each other in a normal state to prevent the loss of parts, in particular a plurality of inner and outer connecting rods (51) (52) protruding in five directions at the same time rectangular hollow bar (2) It can be inserted into the end of each).

And the insertion hole 57 formed in the inner connector body (5a) of the five-way three-dimensional connector (5) is in communication with the inner side of the four inner corner fitting protrusion (53a) in which the inclined protrusion (53b) is formed on each of the inner end And, the adjustment bolt (7) screwed to the screw hole 58 formed in the expansion hole (8) and the outer connector body (5b) fitted to the insertion hole 57 is formed in a state separated from each other, When the adjusting bolt 7 screwed in the screw hole 58 is rotated in the screw tightening direction, the end portion of the adjusting tol 7 is forcibly pushed out the rear end surface of the expansion port 8. The pointed tip of the expansion port 8 that is pushed by the adjustment bolt 7 is to push the four inclined protrusions 53b protruding at the inner ends of each of the four inner corner fitting protrusions 53a, Accordingly, each of the four corner fitting protrusions 53a is open to the outside while the rectangular hollow portion 2 is formed. The frictional resistance is in close contact with the inner surface of each of the corner insertion spaces 23 formed in the four corner portions of the back).

In addition, two or more inner and outer connecting rods 51 facing each other among the plurality of inner and outer connecting rods 51 and 52 formed on each of the inner and outer connector bodies 5a and 5b of the five-way solid connector 5. A plurality of assembly guide protrusions (59a) and the assembly guide groove (59b) are respectively formed in the (52).

Prefabricated structure manufactured by connecting and connecting three-dimensional hollow bar 2 to each of a plurality of inner and outer connecting rods protruding in three-way, four-way, and five-way three-dimensional connectors 3, 4, and 5 as described above. (1) to the binding member (9) forcibly fitted into the fitting groove (21) of the bilateral rectangular hollow bar (2) assembled to form a right angle by the angular three-dimensional connector (3) (4) (5). The prefabricated structure 1 is to be assembled more robustly.

To this end, the binding member (9) is provided with fitting protrusions (9a) (9b) protruding from the perpendicular surface to form a right angle in the support body 90, each of the fitting protrusions (9a) (9b) On both sides of the lower side, engaging grooves 91 and 92, which are caught by projections 22 protruding from each other at the front end of the fitting groove 21 inlet of the square hollow bar 2, are formed symmetrically, and the binding The upper surface 93 of the upper and lower both sides of the support body 90 of the member 9, on which the shelf 100 is supported, is fitted into the fitting protrusion 9a which is forcibly fitted into the fitting groove 21 of the hollow bar 2 ( It is formed to be horizontal to the upper surface of 9b), while the lower surface 94 is the rectangular hollow bar when the fitting protrusions (9a) (9b) is pressed into the fitting groove 21 of the rectangular hollow bar (2) It is formed in the extension protrusion part 95 formed thicker than the fitting protrusion part 9a, 9b so that it may not protrude in (2).

An assembly hole 96 penetrating the upper and lower surfaces 93 and 94 is formed in the binding member 9. The assembly hole 96 is an assembly bolt 300 for attaching the finishing plate 200. It is formed in a state capable of screw assembly.

The operation of the present invention configured as described above will be described.

The prefabricated structure 1 is a hexagonal hollow bar (2) cut to a predetermined length by using three-dimensional to five-way three-dimensional connector (3) (4) (5) in the shape of the cube in the up, down and left and right directions It is assembled in a structure that is connected continuously, each corner portion of the prefabricated structure (1) in each of the plurality of inner and outer connecting rods 31, 32 protruding in three directions to the three-way three-dimensional connector (3) rectangular hollow Bar (2) is to be assembled in three directions, the upper, lower, left and right edge of the prefabricated structure (1) a plurality of inner and outer connecting rods protruding in four directions to the four-way three-dimensional connector (4) Each of the 41 and 42 square hollow bars 2 is assembled in four directions (see Fig. 1 and Fig. 2).

And as shown in FIG. 1, the rectangular hollow bars 2 connected in five directions from each corner portion and the edge portion of the prefabricated structure 1 are assembled and connected by the five-dimensional solid connector 5.

As described above, each of the three- to five-way three-dimensional connectors (3) and (4) to which the rectangular hollow bar 2 is connected and assembled is a state before the rectangular hollow bar 2 is assembled, that is, the three-way to The five-way three-dimensional connector (3) (4) (5) each of the inner and outer connecting rods of two of the plurality of inner and outer connecting rods (31, 32) (41, 42) (51, 52) protruding in each direction In the state where the two pairs of binding protrusions 35, 36, 45, 46, 55, 56 protruding to face each other with the elastic band 6, the plurality of inner and outer connecting rods 31, 32 The (41, 42) (51, 52) will have a cross-sectional area smaller than the cross-sectional area of the rectangular hollow bar (2). Therefore, the two pairs of solid state in the state that the inner and outer connector body (3a, 3b) (4a, 4b) (5a, 5b) of each of the three to five direction three-dimensional connector (3) (4) (5) In the state where the projections 35, 36, 45, 46, 55, 56 are bound by the elastic band 6, the plurality of inner and outer connecting rods 31, 32, 41, 42, 51, 52, respectively. They can be easily inserted into the end of the rectangular hollow bar (2), and then screwing the assembly bolt (7) in the screw tightening direction of the plurality of inserted into the end of the rectangular hollow bar (2) Each of the inner and outer connecting rods 31, 32, 41, 42, 51, 52 is opened in the opposite direction and closely fixed to the inner surface of the end portion of the rectangular hollow part 2 with a large frictional resistance. This will be described in more detail as follows.

In the case of the three-dimensional solid connector (3), as shown in the virtual line portion shown in Figure 11 when the adjustment bolt 7 is screwed in the screw tightening direction, the adjustment bolt (7) to the screw hole 38 The inner connector body (3a) is pushed while being inserted, in which case the adjustment bolt (7) is pushed in the opposite direction by the reaction of the inner connector body (3a) is pushed in the opposite direction, so The inner and outer corner fitting protrusions 33 and 34 formed on each of the inner and outer connecting rods 31 and 32 protruding in three directions from each of the outer connector bodies 3a and 3b are rectangular hollow bars ( A plurality of inner and outer connecting rods 31 and 32 protruding in three directions of the three-dimensional three-dimensional connector 3 by being in close contact with each surface of the corner insertion space 23 formed at the four corners of 2) with strong frictional resistance. Square hollow bar (2) in each state firmly in a state that can not rotate It will be determined.

In addition, in the case of the four-way three-dimensional connector (4) is also screwed in the screw tightening direction, as shown in Figure 15 as an imaginary part of the adjustment bolt (7) is a screw hole 48 The inner connector body 4a is pushed in as it enters the inside, and even when the adjustment bolt 7 pushes the inner connector body 4a, the outer connector body 4b is pushed in the opposite direction by the reaction. The plurality of inner and outer connecting rods 41 and 42 protruding in four directions from the inner and outer connector bodies 4a and 44 are opened to be in contact with the inner surface of the end of the rectangular hollow bar 2 to be in close contact with a strong frictional resistance. Accordingly, the rectangular hollow bar 2 is firmly connected to the plurality of inner and outer connecting rods 41 and 42.

And in the case of the five-way three-dimensional connector (5) as shown in Figure 18 when screwing the adjusting bolt (7) in the screw tightening direction as the adjustment bolt (7) pushes the expansion port (8) The pointed tip portion of the expansion opening 8 extends outward to the inclined protrusion 53b protruding at the inner end of the four inner corner fitting protrusions 53a to the outer corners of the end of the rectangular hollow bar 2. While being in close contact with the strong frictional port, the outer connector body 5b is pushed in the opposite direction by the reaction when the adjusting bolt 7 pushes the expansion tool 8, so that the inner and outer connector body 5a The inner and outer connecting rods 51 and 52 protruding in the four directions of up, down, left and right in (5b) are in close contact with the inner surface of the four corner portions of the rectangular hollow bar 2 with strong frictional resistance. Accordingly, the five-way solid connector 5 has a square used bar 2 firmly in five directions. Connection is to be assembled.

Assembling the prefabricated structure 1 as a structure for connecting the rectangular hollow bar (2) to the three to five direction three-dimensional connector (3) (4) (5) as described above, and then the three to five direction three-dimensional connector ( 3) At the corners of the prefabricated casting (1) connected and assembled at right angles by each of the (4) and (5), the binding member (9) of each of the fitting grooves (22) of each of the rectangular hollow bars (2) formed at right angles. When the fitting protrusions 9a and 9b are assembled together so as to be fitted together, the prefabricated structure 1 is assembled in a more rigid state, an embodiment of assembling the binding member 9 as shown in FIG. 4. 6 and 7, assembling to the two rectangular hollow bars 2 connected at right angles among the rectangular hollow bars 2 connected in three directions to the three-dimensional solid connector 3 are as follows. .

As shown in FIG. 6, when one fitting protrusion 9a of the binding member 9 is aligned with the fitting groove 21 formed in the one-sided hollow bar 2, the one fitting protrusion 9a is fitted into the fitting groove 21. The fitting groove (91) formed in the upper and lower surfaces of the fitting protrusion (9a), which is forcibly fitted, is fitted in the state of being caught by the protrusion (22) protruding at the inlet of the fitting groove (21). The slide movement is possible along (21). Subsequently, as shown in FIG. 7, when the binding member 9 is slid to move toward the fitting groove 21 formed in the other side hollow hollow bar 2, the other fitting protrusion 9b is pressed into the fitting groove 21. The binding member 9 is fitted to the fitting grooves 21 of each of the two-sided hollow bars 2 connected to each other, and the two fitting protrusions 9a and 9b formed at right angles to the binding member 9 are fitted together. Not only can not move in any direction, but also to assemble the two sides of the rectangular hollow bar (2) connected in a state forming a right angle in a more durable state.

Therefore, as described above, the rectangular hollow bars 2 are assembled by connecting three-dimensionally-five-dimensional three-dimensional connectors 3, 4, and 5 in a state in which the hexahedral shape is continuously connected to the prefabricated structure 1, The prefabricated structure 1 manufactured as described above is able to assemble the prefabricated structure 1 more firmly and firmly by binding the hollow hollow bars 2 once again with the binding member 9 at the corners forming a right angle. Further, the binding member 9 for firmly binding the prefabricated structure 1 may not only support the shelf 100 as shown in FIG. 3, but also finish to seal the side or rear surface of the prefabricated structure 1. It will show the advantage to be able to attach the plate 200.

1 is an assembled state diagram of one embodiment of a prefabricated structure for explaining the present invention

Figure 2 is an assembled state plan view of one embodiment of a prefabricated structure of the present invention

3 is a cross-sectional view taken along the line A-A of FIG.

Figure 4 is a perspective view of the separated state of the binding member for increasing the binding force of the prefabricated structure of the present invention

Figure 5 is a cross-sectional view of the separated hollow bar and the binding member of the present invention

Figure 6 and Figure 7 is a coupling state to bind the binding member to the rectangular hollow bar of the prefabricated structure of the present invention

Figure 8 is an exploded perspective view of the three-way solid connector of the present invention

9 and 10 are a front view and a plan view of the coupled state of the three-dimensional solid connector of the present invention

11 is a cross-sectional view taken along the line B-B of FIG.

Figure 12 is an exploded perspective view of the four-way solid connector of the present invention

13 and 14 are a front view and a plan view of the coupled state of the four-way solid connector of the present invention

15 is a cross-sectional view taken along the line C-C of FIG.

Figure 16 is an exploded perspective view of the five-way solid connector of the present invention

17 is a front view of the engaged state of the five-dimensional solid connector of the present invention

18 is a cross-sectional view taken along the line D-D of FIG.

[Description of Drawings]

1: Prefabricated Structure 2: Square Hollow Bar

21: fitting groove 22: protrusion

23: corner insertion space 3: three-way solid connector

4: 4-way solid connector 5: 5-way solid connector

3a, 3b, 4a, 4b, 5a, 5b: Inner and outer connector body

31,32,41,42,51,52: Inner and outer connecting rod

33,34,43,44,53,54: inner and outer corner fitting

35,36,45,46,55,56: binding protrusion

6: elastic band 7: adjusting bolt

8 expansion hole 9 binding member

9a, 9b: fitting protrusion 90: support body

91,92: fitting protrusion 93,94: upper, lower

95: extension protrusion 96: assembly hole

Claims

The fitting protrusion protruding detachably into the fitting grooves formed on each side of the rectangular hollow bar is formed to be perpendicular to the support body, and each of the upper and lower surfaces of the fitting protrusion faces each other at the inlet of the fitting groove. Prefabricated structure using a rectangular hollow bar, characterized in that it comprises a binding member is formed in a symmetrically formed engaging groove that is inserted into the slide so as to allow the slide movement to the protrusion formed.

The method of claim 1,

The upper surface of the support body of the upper and lower surfaces of the support member of the binding member is formed in a state forming a plane with the fitting protrusion, the lower surface of the support body when the fitting protrusion is pressed in the fitting groove formed in the rectangular hollow bar An extension protrusion protruding to a thickness thicker than the fitting protrusion is formed in a state in which the rectangular hollow bar does not protrude, and the support body of the binding member is provided with an assembly hole penetrating both upper and lower sides. Prefabricated structure using bars.

The method of claim 1,

One inner and outer corner fitting protrusion is inserted into the corner insertion space of the hollow hollow bar in each of the plurality of inner and outer connecting rods protruding in the three to five directions from the inner and outer connector bodies of the three to five direction three-dimensional connectors. Prefabricated structure using a rectangular hollow bar, characterized in that formed above.

The method of claim 1,

The inner and outer connector bodies have elastic bands on the inner and outer connector bodies of two of the plurality of inner and outer connecting rods protruding in the three to five directions from each of the inner and outer connector bodies of the three to five direction three-dimensional connectors. Prefabricated structure using a rectangular hollow bar, characterized in that the projecting formed so that a pair of binding projections for binding to each other to face each other.

The method according to claim 3 or 4,

The five-way three-dimensional connector is inserted into the insertion hole of the inner connector body to expand the inner corner fitting protrusions, and the control bolts are assembled in the state of the screw assembly of the screw hole of the outer connector body is formed in a separate state, the screw of the adjustment bolt Prefabricated structure using a rectangular hollow bar, characterized in that the adjustment bolt is configured to push the expansion port during tightening.