KR20200110533A - Pipe coupling module for furniture - Google Patents

Abstract

The present invention relates to a pipe coupling module for furniture, comprising: a coupling bolt (110) which includes a bolt head (111) having the diameter becoming smaller towards a lower side, an insertion shaft (113) formed to extend on a lower side of the bolt head (111), and a screw unit (115) placed on a lower side of the insertion shaft (113) for a certain length and having a first screw thread (115a) on an outer circumferential edge; an adapter (120) inserted into an external side of the insertion shaft (113) of the coupling bolt (110) and having a plurality of skirts (123, 125) formed on an upper side and a lower side to be spread towards an external side in the radius direction with an incision line in the center; a washer (130) inserted into the screw unit (115) of the coupling bolt (110) exposed towards a lower side of the adapter (120), and having the diameter becoming smaller towards the adapter (120); and a couping block (140) formed in a hexahedron shape and having three shaft screw insertion holes (141, 142, 143) formed in three different directions to be selectively coupled by screws with the screw unit (115) exposed towards an external side of the washer (130) in the direction facing each other. The pipe coupling module for furniture is able to be easily assembled with or disassembled from a pipe.

Description

Pipe coupling module for furniture {PIPE COUPLING MODULE FOR FURNITURE}

The present invention relates to a pipe coupling module, and more particularly, to a pipe coupling module for furniture capable of easily and firmly coupling pipes used in furniture manufacturing in various directions.

Pipes are widely used when making various types of furniture. For example, in a hanger, a wardrobe, a storage rack, a shelf, a hanger, etc., pipes are partially assembled and used, or the entire pipe is assembled to manufacture them.

In the case of prefabricated furniture manufacturing using a conventional pipe, there is a limit that it is difficult to reuse the joint part for connecting the pipe and the pipe once used, and the joint part exposed to the outside may be damaged by an external impact.

Publication No. 20-2001-0000857 "Furniture pipe fixing structure" Registration Office No. 20-0329295 "Fixture for pipe assembly furniture"

An object of the present invention is to solve the above-described problem, and to provide a pipe coupling module that can be easily assembled and disassembled with a pipe and can be reused.

Another object of the present invention is to provide a pipe coupling module capable of being firmly coupled to a pipe.

Another object of the present invention is to provide a pipe coupling module that can be easily coupled with a plurality of pipes in different directions.

The above objects and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention by those skilled in the art.

The object of the present invention can be achieved by a pipe coupling module. The pipe coupling module of the present invention includes a bolt head 111 formed to have a gradually smaller diameter toward the bottom, an insertion shaft 113 extending under the bolt head 111, and a lower portion of the insertion shaft 113 A coupling bolt 110 having a threaded portion 115 provided with a predetermined length and having a first screw thread 115a formed at the outer periphery thereof; An adapter 120 inserted into the outside of the insertion shaft 113 of the coupling bolt 110 and provided with a plurality of skirts 123 and 125 extending radially outwardly around a cut line at the top and bottom; A washer 130 that is inserted through the threaded portion 115 of the coupling bolt 110 exposed to the lower portion of the adapter 120 and gradually decreases in diameter in a direction toward the adapter 120; A coupling block 140 formed in a hexahedral shape and having shaft screw insertion holes 141, 142, 143 formed in three directions through which the screw portion 115 exposed to the outside of the washer 130 in a facing direction is selectively screwed. It characterized in that it includes.

According to an embodiment, a driver coupling groove 117 is formed at an end of the threaded portion 115 coupled to the coupling block 140, and a pipe to the outside of the adapter 120 coupled to the coupling bolt 110 ( After inserting 200), when the screw part 115 is rotated using a driver, the coupling bolt 110 moves toward the coupling block 140 in conjunction with the rotation of the screw part 115, and the bolt head 111 and the washer 130 are inserted into and pressurized into the skirts 123 and 125 provided above and below the adapter 120, and the skirts 123 and 125 are extended radially outward by the pressing force, and the end thereof is The inner wall surface of 200 can be contacted and supported.

According to an embodiment, the coupling block 140 has coupling bolts 110 to which the adapter 120 and the washer 130 are coupled in different directions, respectively, and coupling bolts coupled in different directions ( The pipe 200 may be coupled to the outer periphery of 110).

In the pipe coupling module according to the present invention, the skirt of the adapter extends or returns radially outward by screwing the coupling bolt and the coupling block, and can be fixed or separated from the pipe. Thereby, the pipe coupling process can be simplified, and there is an advantage of maintaining a solid coupling force.

In addition, the skirt of the adapter is returned to the initial state by reverse rotation of the coupling bolt using a driver, and the coupling state with the pipe can be easily released. In addition, the pipe coupling module can be separated from the pipe without being damaged, so that repetitive reuse is possible.

1 is an exemplary view showing a state in which a plurality of pipes are coupled using a pipe coupling module according to the present invention;
Figure 2 is an exploded perspective view showing the configuration of the pipe coupling module according to the present invention,
3 to 5 are exemplary views showing the assembly process of the pipe coupling module according to the present invention,
6 is a cross-sectional view showing the shape change of the adapter when assembling the pipe coupling module according to the present invention.

In order to fully understand the present invention, preferred embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. This embodiment is provided to more completely explain the present invention to those with average knowledge in the art. Accordingly, the shape of the element in the drawings may be exaggerated to emphasize a clearer description. It should be noted that in each drawing, the same member may be indicated by the same reference numeral. Detailed descriptions of known functions and configurations that are determined to unnecessarily obscure the subject matter of the present invention will be omitted.

1 is an exemplary diagram showing a state in which two pipes 200 are coupled using a pipe coupling module 100 according to the present invention, and FIG. 2 is an exploded perspective view showing the configuration of the pipe coupling module 100 to be.

As shown, the pipe coupling module 100 according to the present invention is used to couple pipes used when manufacturing furniture in different directions. The pipe coupling module 100 includes a coupling bolt 110 and an adapter 120 inserted into the coupling bolt 110, a washer 130 inserted under the coupling bolt 110 into which the adapter 120 is inserted, It includes a coupling block 140 that penetrates through the washer 130 and is screwed to the threaded portion 115 of the coupling bolt 110 exposed to the outside.

In the pipe coupling module 100 of the present invention, when the coupling bolt 110 and the coupling block 140 are screwed, the bolt head 111 and the washer 130 of the coupling bolt 110 are on both sides of the adapter 120 It is inserted into the interior and extends the skirts 123 and 125 of the adapter 120 radially outward so that the skirts 123 and 125 contact the inner wall surface of the pipe 200 and fix the coupling block 140 and the pipe 200. . When the screwing of the coupling bolt 110 and the coupling block 140 is unscrewed by this coupling method, the skirts 123 and 125 are crimped radially inward as in the initial state, and the coupling block 140 and the pipe 200 are combined The state is released.

Accordingly, assembly and disassembly of the pipe coupling module 100 and the pipe 200 may be easily performed, and repetitive reuse of the pipe coupling block 140 may be possible.

The coupling bolt 110 is coupled to the adapter 120 and the washer 130 and the coupling block 140 together. The coupling bolt 110 includes a bolt head 111, an insertion shaft 113 formed at a predetermined length below the bolt head 111, and a screw portion 115 formed at a predetermined length below the insertion shaft 113.

The bolt head 111 is formed to have a first diameter r1 as shown in FIG. 2. The lower portion of the bolt head 111 is formed as a first cone 112 whose diameter gradually decreases toward the insertion shaft 113.

An upper driver coupling groove 111a into which the driver 300 is inserted is formed to be recessed on the upper surface of the bolt head 111.

The insertion shaft 113 is formed in a predetermined length below the first cone 112. The length of the insertion shaft 113 is provided such that when the adapter 120 is inserted as shown in FIG. 3, the threaded portion 115 is exposed to the outside of the adapter 120.

The threaded portion 115 extends a predetermined length below the insertion shaft 113. A first screw thread 115a is formed on the outer periphery of the threaded portion 115 as shown in FIG. 6A. The first screw thread 115a is screwed into the second screw thread 141a formed in the screw insertion holes 141, 142, and 143 of the coupling block 140.

The length of the screw portion 115 is formed to be a length that can be inserted into the screw insertion holes (141, 142, 143) of the coupling block (140).

In the plate surface of the end region of the screw portion 115, a driver coupling groove 117 is provided to be depressed by a predetermined depth. Accordingly, as shown in FIGS. 5 and 6B, the user can rotate the screw part 115 using the driver 300.

The adapter 120 is inserted into the insertion shaft 113 of the coupling bolt 110, and the pipe coupling module 100 acts to be fixed and disassembled to the pipe 200. The adapter 120 includes an adapter body 121 formed in the shape of a hollow cylindrical tube, and a plurality of first skirts 123 and second skirts 125 provided in the upper and lower portions of the adapter body 121 .

The first skirt 123 and the second skirt 125 are each formed by a first cut line 123a and a second cut line 125a formed at a predetermined angular interval with respect to the outer periphery in the longitudinal direction of the adapter body 121. Is formed.

The first skirt 123 and the second skirt 125 may be moved radially outward around the incision lines 123a and 125a located adjacent to each other, respectively.

The length of the incision lines 123a and 125a is that the ends of the first skirt 123 and the second skirt 125 are pipe 200 while the first skirt 123 and the second skirt 125 are lifted outward in the radial direction. It is preferable to be provided with a length that can reach the inner wall surface of. The length of the cut lines 123a and 125a is preferably designed in consideration of the difference between the outer diameter d1 of the adapter body 121 and the inner diameter r4 of the pipe 200.

Here, the adapter 120 is formed of a synthetic resin material such as plastic to facilitate shape deformation of the first skirt 123 and the second skirt 125 when an external force acts, and the first skirt 123 and the second skirt ( It is preferable that the thickness of the adapter 120 is formed so that 125) is in contact with the inner wall surface of the pipe 200 and sufficient supporting force is formed.

The washer 130 is inserted into the threaded portion 115 of the coupling bolt 110 to which the adapter 120 is coupled, as shown in (a) of FIG. 3. The washer 130 is located between the adapter 120 and the coupling block 140, is pressed and moved into the second skirt 125 of the adapter 120, and serves to expand the second skirt 125 radially outward. Do it.

To this end, the washer 130 has the same shape as the bolt head 111 of the coupling bolt 110 and has a symmetrical direction. The washer 130 has a second cone 131 whose diameter gradually decreases toward the bottom. In the central region of the washer 130, a screw insertion hole 133 is formed through the longitudinal direction.

The coupling block 140 is screwed with the threaded portion 115 of the coupling bolt 110 so that the screwed portion 115 moves up and down with respect to the coupling block 140 and pressurizes the adapter 120. In addition, the coupling block 140 allows a plurality of pipes 200 to be connected to each other in different directions.

The coupling block 140 is formed in a hexahedral shape, and the edge is chamfered. A first shaft screw insertion hole 141, a second shaft screw insertion hole 133, and a third shaft screw insertion hole 133 are formed through the six surfaces of the coupling block 140 in a direction facing each other. A second screw thread 141a is formed on the inner wall surface of each shaft screw insertion hole 141, 142, and 143. Accordingly, the threaded portion 115 of the coupling bolt 110 is selectively screwed into any one of the shaft screw insertion holes 141, 142, and 143.

A process in which the pipe coupling module 100 according to the present invention having such a configuration is coupled with the pipe 200 will be described with reference to FIGS. 1 to 6.

As shown in Figure 2, the operator prepares the coupling bolt 110, the adapter 120, the washer 130, and the coupling block 140 forming the pipe coupling module 100, and the pipe coupling module 100 Prepare the pipe 200 to be combined together.

As shown in Figure 3 (a), the operator inserts the adapter 120 to the coupling bolt 110. In this case, the first skirt 123 of the adapter 120 is disposed to surround the first cone 112. Since the outer diameter d1 of the adapter 120 is smaller than the diameter r1 of the bolt head 111, the first skirt 123 cannot be inserted up to the bolt head 111 and spans the first cone 112.

The adapter 120 is inserted into the outside of the insertion shaft 113, and the threaded portion 115 is exposed to the outside of the second skirt 125. The washer 130 is inserted into the exposed threaded portion 115. The threaded portion 115 is inserted into the screw insertion hole 133 of the washer 130. Since the height of the washer 130 is formed shorter than the threaded portion 115, the threaded portion 115 is partially exposed to the outside of the washer 130.

As shown in (b) of Figure 3, the coupling block 140 is coupled to the threaded portion 115 exposed to the outside of the washer 130. The operator screws the threaded portion 115 into the screw insertion holes 141, 142, and 143 in any desired direction among the six surfaces of the coupling block 140.

For convenience of explanation, it is assumed that the threaded portion 115 is coupled to the first shaft screw insertion hole 141 as shown in FIG. 3B.

As shown in (b) of FIG. 4, when the screw portion 115 is screwed into the first shaft screw insertion hole 141, the pipe coupling module 100 is integrally assembled. In this state, the pipe 200 is coupled to the pipe coupling module 100. The pipe 200 is inserted into the coupling bolt 110 to which the adapter 120 is coupled. As a result, as shown in (b) of FIG. 4, all regions located under the coupling block 140 are inserted into the pipe 200.

Then, the operator inserts the driver 300 into the first shaft screw insertion hole 141 as shown in FIG. 5, and after coupling the driver 300 to the driver coupling groove 117 of the screw portion 115, the driver By rotating 300, the first screw thread 115a of the screw portion 115 is moved upward along the second screw thread 141a.

Figure 6 (a) is a cross-sectional view showing a cross-sectional configuration in the state of Figure 4 (b), Figure 6 (b) is the screw portion 115 in Figure 5 using the driver 300 coupling block 140 ) It is a cross-sectional view of the state raised inside

When the pipe 200 is covered outside the coupling bolt 110 of the pipe coupling module 100 as shown in (a) of FIG. 6, the outer diameter of the adapter 120 is more than the inner diameter r4 of the pipe 200 ( Since d2 = d1) is small, the pipe 200 may not be fixed to the adapter 120 and may be separated.

In this case, the first skirt 123 and the second skirt 125 extend over an intermediate region between the first cone 112 and the second cone 131, respectively.

When the driver 300 is rotated as shown in (b) of FIG. 6, the first screw thread 115a of the screw part 115 rises along the second screw thread 141a of the first shaft screw insertion hole 141 And the coupling bolt 110 as a whole rises toward the coupling block 140.

Accordingly, the bolt head 111 is inserted into the first skirt 123, and the first cone 112 presses the first skirt 123. That is, since an area larger than the inner diameter of the first skirt 123 in the first cone 112 is inserted into the first skirt 123, the plurality of first skirts 123 are centered on the first incision line 123a. And the end of the first skirt 123 contacts and supports the inner wall surface of the pipe 200. In this case, the outer diameter d5> d1 of the first skirt 123 corresponds to the inner diameter r4 of the pipe 200.

In addition, since the washer 130 is supported in contact with the lower portion of the coupling block 140, it cannot move into the coupling block 140. Accordingly, the second skirt 125 of the adapter 120 that is moved toward the coupling block 140 together with the coupling bolt 110 opens and rises along the second cone 131 of the washer 130. In this process, the second skirt 125 spreads outward in the radial direction around the second incision line 125a and supports the inner wall surface of the pipe 200 in contact.

In this way, the first skirt 123 and the second skirt 125 spread outward in the radial direction and contact and support the inner wall surface of the pipe 200 in two areas on the upper side and the lower side of the pipe 200. 100 and the pipe 200 may be rigidly coupled.

In such a state in which the pipe 200 and the pipe coupling module 100 are coupled, when the operator rotates the driver 300 in the opposite direction, the screw portion 115 is lowered in a direction away from the coupling block 140, and the adapter 120 ), the first cone 112 and the second cone 131, which were pressed inside the first skirt 123 and the second skirt 125, are also restored to their initial state as shown in FIG. 6(a). Then, the first skirt 123 and the second skirt 125 are concave in their initial state and are spaced apart from the inner wall surface of the pipe 200.

When the adapter 120 returns to its initial state, the pipe 200 may be separated from the pipe coupling module 100. The pipe coupling module 100 separated from the pipe 200 can be reused for coupling other pipes.

Meanwhile, the pipe 200 may be coupled to the coupling block 140 of the pipe coupling module 100 in three different directions. Thereby, the coupling bolt 110, the adapter 120, and the washer 130 are coupled to the first shaft screw insertion hole 141, and the other coupling bolt 110 and the adapter in the second shaft screw insertion hole 133 120) and washer 130 are combined. Further, as shown in FIG. 1, two pipes 200 and 200a may be coupled in different directions. Also, in some cases, three pipes may be joined in three different directions.

Since the three pipes 200 can be combined using one coupling block 140, there is an advantage in that the furniture assembly work can proceed faster.

On the other hand, the coupling of the pipe coupling module 100 and the pipe 200 described above is described as the driver 300 is inserted through the coupling block 140 and coupled to the driver coupling groove 117 to rotate the screw portion 115 I did. However, in some cases, the driver 300 is inserted through the inside of the pipe 200 and is coupled to the upper driver coupling groove 111a in the bolt head 111 to rotate the coupling bolt 110.

As described above, in the pipe coupling module according to the present invention, the adapter extends or returns radially outward by screwing the coupling bolt and the coupling block, and may be fixed or separated from the pipe. Thereby, the pipe coupling process can be simplified, and there is an advantage of maintaining a solid coupling force.

In addition, the adapter is returned to the initial state by rotation of the coupling bolt using a driver, and the coupling state with the pipe can be easily released. In addition, the pipe coupling module can be separated from the pipe without being damaged, so that repetitive reuse is possible.

The embodiments of the pipe coupling module of the present invention described above are merely exemplary, and those of ordinary skill in the technical field to which the present invention belongs are well aware that various modifications and other equivalent embodiments are possible. I will be able to. Therefore, it will be appreciated that the present invention is not limited to the form mentioned in the detailed description above. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims. In addition, the present invention is to be understood as including the spirit of the present invention as defined by the appended claims and all modifications, equivalents and substitutes within the scope thereof.

100: pipe coupling module 110: coupling bolt
111: bolt head 112: first cone
113: insertion shaft 115: threaded portion
115a: first thread 117: driver coupling groove
120: adapter 121: adapter body
123: first skirt 123a: first incision
125: second skirt 125a: second incision
130: washer 131: second cone
133: screw insertion hole 140: coupling block
141: 1st shaft thread insertion hole 141a: 2nd thread
142: 2nd shaft screw insertion hole 143: 3rd shaft screw insertion hole
200, 200a: pipe 300: driver

Claims (3)

The bolt head 111 is formed to gradually decrease in diameter as it goes downward, the insertion shaft 113 extending below the bolt head 111, and a predetermined length is provided below the insertion shaft 113 and is located at the outer periphery. A coupling bolt 110 having a threaded portion 115 on which a first screw thread 115a is formed;
An adapter 120 inserted into the outside of the insertion shaft 113 of the coupling bolt 110 and provided with a plurality of skirts 123 and 125 extending radially outwardly around a cut line at the top and bottom;
A washer 130 that is inserted through the threaded portion 115 of the coupling bolt 110 exposed to the lower portion of the adapter 120 and gradually decreases in diameter in a direction toward the adapter 120;
A coupling block 140 formed in a hexahedral shape and having shaft screw insertion holes 141, 142, 143 formed in three directions through which the screw portion 115 exposed to the outside of the washer 130 in a facing direction is selectively screwed Pipe coupling module comprising a.
The method of claim 1,
A driver coupling groove 117 is formed at an end of the screw portion 115 coupled to the coupling block 140,
After inserting the pipe 200 to the outside of the adapter 120 coupled to the coupling bolt 110, when the screw portion 115 is rotated using a driver, the coupling bolt is interlocked with the rotation of the screw portion 115 (110) is moved toward the coupling block 140,
The bolt head 111 and the washer 130 are inserted into the skirts 123 and 125 provided above and below the adapter 120 and pressurized, and the skirts 123 and 125 are expanded radially outward by the pressing force and end A pipe coupling module, characterized in that for contacting and supporting the inner wall surface of the pipe (200).
The method of claim 2,
In the coupling block 140, coupling bolts 110 to which the adapter 120 and the washer 130 are coupled in different directions are respectively coupled to the outer peripheries of the coupling bolts 110 coupled in different directions. Pipe coupling module, characterized in that the pipe 200 is coupled.

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