JP3134342U - Tube connection structure - Google Patents

Abstract

[PROBLEMS] To improve the stability of the structure after assembling, improve the degree of joining of each member, and prevent dropout or separation due to external force, and saving during transportation and storage. To make space.
A first tubular body having a plurality of annular grooves on an outer peripheral surface, a plurality of inner linings having an outer peripheral surface having a conical shape and an arc-shaped convex portion on an inner peripheral surface, and a plurality of connecting tools And an articulated structure composed of a plurality of tensioning units, and a second tubular body fitted on the outer peripheral surface of the tensioning unit.
[Selection] Figure 1

Description

The present invention relates to a tube connecting structure, and more particularly to a tube connecting structure (tube connecting device) that can be easily assembled and the stability of the assembled structure is improved.

  There are various frame structures of conventional storage racks. As an example of the conventional connection method of the storage shelf, one groove is formed on the bottom surface of the plate of the storage shelf, one hole is opened on the side surface of the other plate, and a screw is attached to the groove and the hole. The two plates are inserted and tightened.

The connection method of the storage rack as described above is simple in structure and easy to assemble, but after tightening the two plates with screws, the groove opened on the bottom of the plate is positioned between the positioning and the guide. Since the role is exerted, when a screw is screwed into the groove, a considerable force is applied, and if the force applied to the screw is not average, the screw is easily displaced. If it does so, the structure of the assembled storage rack will become unstable and there exists a problem that the safety | security of use falls.

  A main object of the present invention is to provide a tube connecting structure that facilitates assembly work and disassembly work and enables DIY work.

  The next object of the present invention is to provide a tube connecting structure in which the tightness of the assembly of each member is improved, and dropout and separation due to external force do not occur, and the stability of the structure is improved.

Another object of the present invention is to provide a tube connecting structure in which an assembly member is separable and space can be saved during transportation and storage.

  The first device of the present application made to achieve the above object includes a first tubular body having one or more and a plurality of annular grooves parallel to each other provided at equal distances on the outer circumferential surface. The first outer peripheral surface has a conical shape, an arc-shaped convex portion is provided at a predetermined position on the inner peripheral surface, and the arc-shaped convex portion is positioned in the annular groove. An inner lining to be fitted to the outer peripheral surface of the tubular body, and at least one connecting structure composed of a plurality of connecting tools and a plurality of tightening units, and at least one of the connecting units, In the tube connecting structure including the second tube fitted to the outer peripheral surface, the connecting tool has a through hole in the center, and is fitted to the inner lining on the outer peripheral surface of the first tube, In addition, a plurality of screw holes that are equidistant on the outer circumferential surface in the radial direction are opened. A first urging tool, a second urging tool, and a tightening tool, each of the first urging tool and the second urging tool having slopes facing each other; A through hole extending in the axial direction is formed in the center of each of the tightening tool and the second tightening tool, and the fastening tool is inserted through the through holes and screwed into a screw hole in the connecting tool. The gist of this is the tube connection structure.

  The gist of the second device of the present application is that the first tube bodies are tube connection structures according to the first device, characterized in that the first tube bodies are substantially bamboo-shaped tubes.

  In the third device of the present application, the inner lining is composed of a first piece and a second piece that are opposed to each other and have an arc shape, and the first piece and the second piece are The outer peripheral surface of the inner lining formed together has a conical shape whose diameter increases from top to bottom, and the first piece has an arc-shaped convex portion at a predetermined position on the outer surface, and side edges on both sides. Ribs projecting from each other, and side edges on both sides of the second piece are notched according to the ribs of the first piece, and the first piece and the second piece are recessed. The first piece and the arcuate convex portion with the piece are engaged with the annular groove of the first tube, and the rib of the first piece is engaged with the notch of the second piece. The gist is the tubular articulated structure according to the first aspect, wherein the second piece is covered with an outer peripheral surface of the first tubular body.

  The fourth invention of the present application is summarized in that the connecting tool has a tubular connection structure according to the first invention, which has a substantially ball shape.

  The fifth invention of the present application is summarized as the tube connecting structure according to the first invention, wherein the through hole of the connecting tool has a tapered shape that expands from top to bottom.

  In the sixth device of the present application, the connection structure compression unit further includes an elastic member, and the elastic member is pressed against one side of the first compression device and the peripheral surface of the connection device, respectively. The gist is the tube connecting structure according to the first aspect, which is provided on a side surface of the first compression tool.

  In the seventh invention of the present application, the first unit is characterized in that one end, a cross, a hexagonal hole, or a polygonal hole are respectively provided at both ends of the fastener of the tension unit. The gist is that it is a tube connecting structure described in the invention.

  In the eighth device of the present application, the tube connecting structure according to the first device is characterized in that a through-hole penetrating both ends is formed in the center of the fastener of the tension unit. Is the gist.

  The ninth device of the present application is summarized as the tube connecting structure according to the sixth device, wherein the elastic member is a spring.

  According to a tenth aspect of the present application, in the sixth aspect, the elastic element is a disk spring, and an arcuate concave surface that is pressed against a side surface of the first pressing member is provided on one side. The gist is that it has a tubular connection structure.

The eleventh device of the present application is summarized as the tube connecting structure according to the sixth device, wherein the elastic member is a spring having a cross shape.

The tube connecting structure of the present invention has the following effects.
(A) Assembly work and disassembly work are facilitated, and DIY work (Sunday carpentry work) is possible.

  (B) The tightness of the assembly of each member is improved, and no dropout or separation due to external force occurs, and the stability of the structure is improved.

(C) The assembly member is separable, and space can be saved during transportation and storage.

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

  First, FIG. 1 to FIG. 3 are referred to. The tube connection structure of the present invention includes one or more first tube bodies 10, a plurality of inner linings 20, one or more connection structures 30, and one or more second tube bodies 33. .

  As shown in FIG. 1, the first tubular body 10 is a tubular body having a substantially bamboo shape, and a plurality of annular grooves 11 that are parallel to each other are provided at equal distances on the outer peripheral surface.

As shown in FIG. 1, the inner lining 20 includes a first piece 21 and a second piece 22 that are opposed to each other and have an arc shape.
The outer peripheral surface of the inner lining 20 formed by combining the first piece 21 and the second piece 22 has a conical shape that expands from top to bottom, and the first piece 21 has an outer surface. An arc-shaped convex portion 211 is provided at a predetermined position.
Ribs 212 protrude from the side edges on both sides of the inner lining 20.
Cutouts 222 are recessed in the side edges on both sides of the second piece 22 in accordance with the ribs 212 of the first piece 21, and the first piece 21 and the second piece 22 are circled. The arc-shaped convex portions 211 and 221 are engaged with the annular groove 11 of the first tubular body 10, and the rib 212 of the first piece 21 is engaged with the notch 222 of the second piece 22. The one piece body 21 and the second piece body 22 cover the outer peripheral surface of the first tubular body 10.

  As shown in FIG. 1, the connection structure 30 includes a connection tool 31 and a tension unit 32.

The connecting tool 31 has a substantially ball shape, and a through hole 311 having a diameter increasing from top to bottom is opened at the center.
The connecting tool 31 is fitted into the inner lining 20 on the outer peripheral surface of the first tubular body 10, and a plurality of screw holes 312 are formed at equal distances on the outer peripheral surface in the radial direction.

The compression unit 32 includes a first compression tool 321, a second compression tool 322, and a fastening tool 323.
Slopes 3211 and 3221 facing each other are provided on one side of the first and second urging tools 321 and 322, respectively, and in the axial direction at the center of the first and second urging members 321 and 322. Through-holes 3212 and 3222 are formed respectively.
The fastening tool 323 is inserted into the through holes 3212 and 3222 of the first and second fastening tools 321 and 322 and screwed into the screw holes 312 of the connecting tool 31.

  As shown in FIGS. 1 and 2, the second tubular body 33 is fitted on the outer peripheral surface of the compression unit 32, and the first compression tool 321 and the second compression tool 322 are rotated by rotating the fastening tool 323. It shifts and tightens the inner peripheral surface of the second tubular body 33.

Further, the tension unit 32 of the connecting structure 30 further includes an elastic element 324.
The elastic element 324 is provided on the side surface of the first pressing tool 321 so that both ends are pressed against one side of the first pressing tool 321 and the peripheral surface of the connecting tool 31.

  Further, in order to penetrate the electric wire, a through hole (no symbol) penetrating both ends is opened at the center of the fastener 323.

  The above-described elastic element 324 may be a spring.

  The elastic element 324 may be a disc spring as shown in FIG. 2, and in this case, an arcuate concave surface 3241 that is pressed against the side surface of the first pressing member 321 is provided on one side. .

  The elastic element 324 may be a spring having a cross shape.

  Further, one end, a cross shape, a hexagonal hole, or a polygonal hole is recessed at both ends of the fastening tool 323 of the tension unit 32.

Further, one or more plates 40 may be included. The plate 40 may be made of metal, wood, glass, or resin.
As shown in FIG. 3, the plate 40 is assembled inside the connecting structure 30.

Next, the assembly method of the present invention will be described in detail with reference to FIGS.
First, the arc-shaped convex portions 211 and 221 of the first piece body 21 and the second piece body 22 are engaged with the annular groove 11 of the first tubular body 10, and the rib 212 of the first piece body 21 is the first piece. The first piece body 21 and the second piece body 22, which are the plurality of inner linings 20, are packaged so as to cover the outer peripheral surface of the first tubular body 10 so as to engage with the notches 222 of the two piece bodies 22.

Thereafter, the assembling work of the connecting structure 30 is performed.
As shown in FIG. 2, the fastening tool 323 is inserted into the through holes 3212 and 3222 in the first and second fastening tools 321 and 322 and screwed into the screw holes 312 formed in the connecting tool 31. The outer peripheral surface of the connecting tool 31 is fitted into the second tubular body 33.
At this time, by turning the tightening tool 323, the slope 3211 in the first pressing tool 321 and the slope 3221 in the second pressing tool 322 are shifted to press the inner peripheral surface of the second tubular body 33. It becomes like this.
And the assembly | attachment operation | work of the connection structure 30 as shown in FIG. 1 is completed.
As described above, the assembly method of the present invention is extremely simple.
In addition, the fastening tool 323 of the connection structure 30 of the present invention further includes an elastic element 324, and the elastic element 324 causes both ends of the elastic element 324 to be connected to one side of the first pressing tool 321, respectively. The first pressing tool 321 and the second pressing tool 322 press the inner peripheral surface of the second tubular body 33, and the second tubular body 33 is connected to the connecting tool. When pulled in the direction 31, there is no gap between the second tubular body 33 and the connecting tool 31, and the stability of the overall structure is improved compared to the conventional case.

Thereafter, as shown in FIGS. 2 and 3, the inner lining 20 provided on the outer peripheral surface of the first tubular body 10 is fitted into the through hole 311 in the connecting tool 31 of the connecting structure 30.
That is, by connecting the inner lining 20 having a conical shape that expands from the top to the bottom into the through hole 311 that is opened in the connecting tool 31 and expands from the top to the bottom, the degree of coupling of the entire structure is improved.

Finally, by assembling the plate 40 directly inside the connecting structure 30, each arcuate recess 41 of the plate 40 covers the outer peripheral surface of each second tubular body 33.
Therefore, according to the tube connecting structure of the present invention, the assembling method is extremely simple, and the user can quickly perform the disassembling work and the assembling work.

  In addition, according to the tube connecting structure of the present invention, the user can assemble a frame structure of two or more layers as shown in FIG. 3, so that it is very easy to form a storage shelf.

As shown in FIGS. 1 and 2, the present invention mainly has a slope 3211 in the first pressing tool 321 and a slope 3221 in the second pressing tool 322 by turning the fastening tool 323. Since the inner circumferential surface of the second tubular body 33 is displaced and becomes a dilator, the first and second urging tools 321 and 322 expand in the radial direction, and FIG. As shown, the inner peripheral surface of the second tubular body 33 is tightened.
As a result, the tightness between each member is improved, dropout or separation due to external force does not occur, the stability of the structure is improved, the weight that can be received increases, even if it receives an inappropriate external force, The frame according to the present invention does not easily fall over or distort.

It is an exploded perspective view of the present invention. It is a section schematic diagram of a part combination state of the present invention. It is a disassembled perspective view before the assembly | attachment of the Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 1st pipe body 11 Ring groove 20 Inner lining 21 1st piece 211 Arc-shaped convex part 212 Rib 22 2nd piece 221 Arc-shaped convex part 222 Notch 30 Connecting structure 31 Connecting tool 311 Through-hole 312 Screw hole 32 Tightening Unit 321 First Tightening Tool 3211 Slope 3212 Through Hole 322 Second Tightening Tool 3221 Slope 3222 Through Hole 323 Fastening Tool 324 Elastic 3241 Arc Concave Surface 33 Second Tube 40 Plate 41 Arc Concave

Claims (11)

One or more first tubular bodies provided with a plurality of annular grooves parallel to each other at equal distances on the outer peripheral surface;
The outer peripheral surface has a conical shape, the inner peripheral surface has an arc-shaped convex portion, and is fitted to the outer peripheral surface of the first tubular body so that the arc-shaped convex portion is positioned in the annular groove. Multiple inner linings,
One or more connecting structures composed of a plurality of connecting tools and a plurality of tension units;
In the tube connecting structure including one or more second tubes fitted to the outer peripheral surface of the tension unit,
The connecting tool has a through hole in the center, is fitted into an inner lining on the outer peripheral surface of the first tubular body, and has a plurality of screw holes at equal distances on the outer peripheral surface in the radial direction. ,
The compression unit includes a first compression tool, a second compression tool, and a fastening tool, and inclined surfaces that face each other are provided on one side of the first compression tool and the second compression tool, respectively. A through hole extending in the axial direction at the center of the first pressing tool and the second pressing tool, and the fastening tool is inserted into each through hole and is located in the connecting tool. Characterized by screwing into holes,
Tube connection structure.   2. The tubular connecting structure according to claim 1, wherein each of the first tubular bodies is a tubular body having a substantially bamboo shape.   The inner lining is composed of a first piece and a second piece that are opposed to each other and have an arc shape, and is formed by combining the first piece and the second piece. The first piece has an arc-shaped convex portion at a predetermined position on the outer surface, and ribs project from the side edges on both sides. And notches are provided in the side edges on both sides of the second piece according to the ribs of the first piece, and the arc shape of the first piece and the second piece The first piece and the second piece are connected so that the convex portion engages with the annular groove of the first tubular body, and the rib of the first piece engages with the notch of the second piece. The tubular connecting structure according to claim 1, wherein the outer peripheral surface of the first tubular body is covered.   The tubular connecting structure according to claim 1, wherein the connecting tool has a substantially ball shape.   The tubular connecting structure according to claim 1, wherein the through hole of the connecting tool has a tapered shape that expands from top to bottom.   The connection-structured compression unit further includes an elastic element, and the elastic element is provided on a side surface of the first compression tool such that both ends press against one side of the first compression tool and the peripheral surface of the connection tool. The tube connection structure according to claim 1, wherein the tube connection structure is provided.   The tube connection according to claim 1, wherein one end, a cross, a hexagonal hole, or a polygonal hole is respectively provided at both ends of the tightening tool of the tension unit. Construction.   The tube connecting structure according to claim 1, wherein a through-hole penetrating both ends is formed in the center of the fastener of the tension unit.   The tube connecting structure according to claim 6, wherein the elastic member is a spring.   The tube connecting structure according to claim 6, wherein the elastic member is a disk spring, and an arcuate concave surface that is pressed against a side surface of the first pressing member is provided on one side.   The tube connecting structure according to claim 6, wherein the elastic element is a spring having a cross shape.

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