WO2020050430A1

WO2020050430A1 - Joint for coupling pipes

Info

Publication number: WO2020050430A1
Application number: PCT/KR2018/010281
Authority: WO
Inventors: 임흥순
Original assignee: 한보일렉트(주)
Priority date: 2018-09-03
Filing date: 2018-09-04
Publication date: 2020-03-12

Abstract

The present invention relates to a joint for coupling pipes and, more particularly, to a joint for coupling pipes that is capable of firmly coupling a plurality of pipes to each other. The joint for coupling pipes comprises: a joint body (11) having a semi-cylindrical shape as a whole; a coupling part (12) formed in the front of the joint body (11) and extending so as to be inclined; transformable parts (13a, 13b) which are formed to face an upper portion of the joint body (11) from a boundary of the coupling part (12); and a pressurizing part (14) formed at an end portion of the coupling part (12) and in contact with the outer circumferential surface of the pipes, wherein the shape of at least a portion of the outer circumferential surface of the joint body (11) is deformed by means of the transformable parts (13a, 13b).

Description

Pipe joint

The present invention relates to a joint for pipe connection, and more particularly to a joint for pipe connection that can firmly couple a plurality of pipes to each other.

Tube-shaped linear pipes made of metal or plastic materials can be applied to the assembly of racks, showcases, goods transport trolleys, exhibition halls or similar products or structures. In order to assemble such products or structures, different pipes need to be combined in various forms, and for this purpose, joints having various structures are used according to the connection form. The joint has the function of connecting the ends of at least one pipe, so that the resistance to load or tensile force can be relatively weak compared to other parts of the pipe. In addition, the joining site may be weakened due to vibration or shock, which may reduce overall durability. Therefore, such a joint needs to have a structure that can compensate for this disadvantage. Utility Model Registration No. 20-0486505 discloses a pipe joint that is applied to an industrial shelf forming rack system. International Publication No. WO 2002/93022 also discloses a pipe joint for connecting pipe members of various lengths and an assembly using the pipe joint. However, the prior art does not disclose a joint for pipe connection having sufficient resistance to load or tensile force and at the same time having stability against noise or impact.

The present invention is to solve the problems of the prior art has the following purposes.

An object of the present invention is to provide a joint for pipe connection to prevent noise generation while having high resistance to external impact while ensuring that the assembly is structurally stable by having sufficient resistance to load or tensile force applied to the pipe or connection portion. Is to provide.

According to a preferred embodiment of the present invention, the joint for pipe connection is a joint body having a semi-cylindrical shape as a whole; A coupling part extending inclined while being formed in front of the joint body; A shape changing portion formed to face from the boundary of the joining portion to an upper portion of the joint body; And a pressurizing portion formed at the end of the joining portion and in contact with the outer circumferential surface of the pipe, wherein the shape change portion deforms the shape of at least a portion of the outer circumferential surface of the joint body.

According to another suitable embodiment of the present invention, the shape change portion is a shape in which a region is enlarged while extending to both edges with a vertex line of the joint body.

According to another suitable embodiment of the present invention, it further comprises a reinforcing stopper block formed inside the joint body, and at least one cushioning groove is formed in the reinforcing stopper block.

The joint according to the present invention allows the structural stability of the assembly to be improved by expanding the area of the portion in contact with the pipe while simultaneously reinforcing the portion where the load or tensile force due to the coupling increases. In addition, the joint according to the present invention has a function of alleviating the impact while simultaneously reducing the occurrence of noise by reducing its own weight while reinforcing the inner portion adjacent to the portion to be joined with the pipe, and at the same time manufacturing cost. To be reduced.

Figure 1 shows an embodiment of a pipe connection joint according to the present invention.

Figure 2 shows an embodiment in which the joint according to the invention is coupled to the pipe.

3 to 8 show various embodiments of the joint according to the present invention.

The present invention will be described in detail below with reference to the embodiments presented in the accompanying drawings, but the embodiments are intended for a clear understanding of the present invention and the present invention is not limited thereto. In the following description, components having the same reference numerals in different drawings have similar functions, and are not described repeatedly unless necessary for understanding of the invention, and well-known components are briefly described or omitted, but the present invention It should not be understood as being excluded from the embodiment.

Referring to FIG. 1, the pipe connection joint 10 includes a joint body 11 having a semi-cylindrical shape as a whole; A coupling portion 12 formed in front of the joint body 11 and extending to be inclined; Shape changing

portions

13a and 13b which are formed to face an upper portion of the joint body 11 from the boundary of the engaging portion 12; And a pressurizing portion 14 formed at the end of the engaging portion 12 and in contact with the outer circumferential surface of the pipe, the outer circumferential surface of the joint body 11 by the

shape changing portions

13a and 13b. At least part of the shape is deformed.

The pipe may be made of aluminum, an aluminum alloy or the like, for example, or made of a synthetic resin material. The pipe may have a hollow shape and may have a linear or polygonal cross section and extend linearly. The joint 10 may be coupled to a pipe in a structure in which a pair having the same structure is coupled up and down. For example, a pair of joints 10 may be coupled to the circumferential surface of the pipe to connect different pipes to each other at various angles. Pipes having various shapes can be connected to each other in various ways, and the present invention is not limited thereto.

The joint body 11 may be a semi-cylindrical shape as a whole, but is not limited thereto, and may have a shape suitable for the structure of the pipe to be connected thereto. An inclined planar engaging portion 12 may be formed in front of the joint body 11, and the engaging portion 12 is integrally formed with the joint body 11 while being cut so that the end portion of the semi-cylindrical shape is inclined. The engagement portion 12 may be an inclined ellipse shape, but is not limited thereto. The shape change

parts

13a and 13b may be formed on the outer circumferential surface of the joint body 11. The outer circumferential face of the joint body 11 may have the same or similar shape as the outer circumferential face of the cylindrical shape. And the shape change portion (13a, 13b) is a structure for changing the outer shape of the joint body 11 having the same or similar shape as the outer peripheral surface of the cylindrical shape, the coupling portion 12 and the joint body 11 It may be formed based on the boundary portion of the. For example, the shape change

portions

13a and 13b may have a shape in which a region is enlarged while extending to both edges of the vertex line PL of the joint body 11. The vertex line PL may be a bisector that bisects the joint body 11 that becomes a semi-cylindrical shape along the longitudinal direction. For example, it may be a quarter cylinder shape of the joint body 11 by the vertex line PL. The vertex line PL may be a virtual line formed on the outer circumferential surface of the joint body 11. And the shape change portion (13a, 13b) is formed in a form in which the area extends toward both edges of the joint body 11 from the position where the vertex line PL and the engaging portion 12 of the elliptical shape intersect or are adjacent thereto. It can be, but is not limited to. The shape change

portions

13a and 13b may have a function of preventing a weakening of the coupling force due to a load or a load applied to the coupling portion 12 or a portion adjacent thereto due to a load or a load, and thereby damaging the joint 10. . Specifically, the end portion of the coupling portion 12 and the lower portion adjacent thereto may be coupled to the pipe, and the coupling portion 12 may be an oval shape as a whole. When a load is applied in the vertical direction to the coupling portion 12 due to the shape of the coupling portion 12 that becomes an elliptic shape, the load is uniformly applied along the width direction or the radial direction of the end portion of the coupling portion 12. However, the volume of the portion that resists the load or the pressure decreases toward both directions from the center of the long radius of the coupling portion 12, and thus durability may be weakened toward both sides. This may damage both ends of the coupling portion 12, thereby weakening the coupling force by the joint (10). The shape change

portions

13a and 13b are intended to solve this disadvantage of the joint 10 and as shown in FIG. 1, the joint body 11 from the intersection of the coupling portion 12 and the vertex line PL. While extending to both edges may be formed to protrude compared to the other portion of the joint body (11). In addition, the shape change

parts

13a and 13b may be formed in a shape in which the area is gradually increased while extending from the vertex line PL to the edge or in a shape in which the length in a direction parallel to the vertex line PL is increased. In addition, this structure can be compensated for the weakening of the resistance to the vertical direction or a similar direction toward both directions from the center of the long radius can be compensated. The shape change

portions

13a and 13b may be convex curved shapes with respect to the outer circumferential surface of the joint body 11 from the boundary portion of the joint body 11 and the elliptical coupling portion, but are not limited thereto. The structure of the

shape changing portions

13a and 13b can be determined by the shape of the pressing portion 14 or the distribution of pressure, stress or force acting on the pressing portion 14.

The end portion or long radius of the engaging portion 12 may extend in a direction perpendicular to the longitudinal direction of the joint body 11, and the pressing portion 14 is convex downward from the end of the engaging portion 12. Can be made with Specifically, it may extend from the end of the coupling portion 12 to the curved surface shape inclined outward and then to the curved surface inclined downward and then upwardly curved upward. By this structure, the outwardly protruding portion and the downwardly protruding portion may be formed, and then the pressing portion 14 may be connected to the reinforcing stopper block 15 after forming the upwardly concave valley. The load buffer region 141 may be formed at the center portion in the width direction of the pressing portion 14 formed as described above. The load buffer region 141 may be connected to the pressure buffer region 151 formed in the reinforcement stopper block 15. The reinforcement stopper block 15 may be formed under the joint body 11 while being generally rectangular in shape. The reinforcement stopper block 15 has a side connected to a part of both edges of the joint body 11, a front connected to the inner side of the pressing portion 14, and a rear side located inside the rear end of the joint body 11. Can be made. The front surface may be formed at a position of 1/4 to 4/5 of the portion extending in the front direction of the coupling portion 12 while being located inside the end of the coupling portion 12, but is not limited thereto. According to one embodiment of the present invention, at least one buffer groove 17 may be formed in the reinforcing stopper block 15. For example, the buffer grooves 17 may be formed at two positions in a symmetrical position with respect to the vertex line PL while being in the shape of a groove recessed upwardly or inwardly from the bottom surface of the reinforcement stopper block 15. Each buffer groove 17 may be of the same or similar shape, may have a rectangular parallelepiped shape in which both sides are curved, and may have a depth greater than or equal to the thickness of the reinforcing stopper block 15. The buffer groove 17 mitigates various shocks or noises applied from the outside while at the same time reducing the total weight of the joint 10. It may also have a function of preventing deformation due to expansion or contraction of the joint 10.

The reinforcement wall 16 may be formed in such a manner that both sides of the reinforcement stopper block 15 extend, and the contact buffer groove 161 may be formed at the interface between the reinforcement wall 16 and the reinforcement stopper block 15. Can be. The contact buffer grooves 16 may have a function of keeping the contact surface stable while compensating the contact pressure or deformation of the side of the reinforcement stopper block 15 and the reinforcing wall 16 which are in contact with each other while being coupled up and down. Coupling portion 12 formed in the front portion of the joint 10 is coupled to the outer peripheral surface of the pipe, the end of the other pipe can be introduced through the insertion passage portion 18 formed in the rear portion of the joint 10 have. The shape of the insertion passage portion 18 is formed to extend along the inner surface of the joint body 11 and may be connected to the rear surface of the reinforcement stopper block 15. The shape of the insertion passageway 18 can be determined according to the shape of the other pipe to which it is joined. And the pair of joints 10 which are coupled up and down may be coupled to each other by a bolt coupled to the bolt hole (BH).

The following describes an embodiment in which a pair of joints 10 are coupled to the outer circumferential surface of the pipe.

Referring to FIG. 3, a fastening block 31 including an insertion body 312 inserted into the inside of the pipe at the rear of the joint 10c and a connection body 311 connecting the insertion body 312 and the joint body 11 to each other. ) May be formed. The insertion body 312 may be, for example, a semi-cylindrical shape that may be inserted into the pipe, and the connection body 311 may be a shape in which the insertion body 312 is rotated by 90 degrees along the longitudinal direction. . And by this structure a pair of joints (10c) are coupled up and down and fixed to the side of one pipe, the connection body 311 and the insertion body 312 can be fixed by being inserted into the other pipe. have. In such a structure, the joint body 11 has a short extension length, whereby the

shape change portions

13a and 13b can be formed to reach the entire length of both edges of the joint body 11. In addition, two buffer grooves 17 may be formed in the reinforcement stopper block 15, but are not limited thereto.

Referring to FIG. 4, the joint 10d may include a spherical fixing block 41 formed at the rear of the joint body 11. The spherical fixing block 41 may include a fixing body 412 connected by a connecting body 411, and the connecting body 411 extends in a semi-cylindrical shape from the rear surface of the reinforcing stopper block 15, and the fixing body 412 may be hemispherical. A hemispherical buffer groove 413 may be formed in the fixed body 412, and protrusion tabs or receiving

hole coupling tabs

414 and 415 may be formed in the connection body 411 or the fixed body 412. have. The reinforcement stopper block 15 may be formed over the entire lower portion of the joint body 11, and the

shape change portions

13a and 13b may have at least 1/2 of the total length of both edges of the joint body 11. It can be formed in the portion.

Referring to FIG. 5, the joint body 11 may be extended in a semi-cylindrical shape, and

coupling portions

13a, 13b, 13c, and 13d may be formed at both ends of the joint body 11, and the reinforcement stopper block 15 may be formed. It can be formed over the entire length of the joint body 11. And the

buffer grooves

17a, 17b, 17c may be formed in the front, rear and center portions of the reinforcement stopper block 15. In addition,

pressing portions

14a and 14b are formed at

respective coupling portions

12a and 12b formed at both ends of the joint body 11 so that both ends of the joint body 11 can be coupled to the outer circumferential surface of different pipes. have.

Referring to FIG. 6, two

joint bodies

11a and 11b may be connected to each other side by side by a horizontal connection block 612, and the coupling portion 12 may have an elliptical shape on both sides thereof, and the upper circumferential surface may be straight or The radius of curvature can be a large ellipse shape. The upper part of each

joint body

11a, 11b can be connected to each other by a reinforcing connection block 611, and the reinforcing connection block 611 is a shape changing part formed on the outside of each

joint body

11a, 11b. 13a, 13b). The reinforcing connection block 611 may have a planar shape connecting the vertex lines of the different

joint bodies

11a and 11b. The reinforcement stopper block 16 formed below the

joint bodies

11a and 11b may have a shape for connecting the lower portions of the

joint bodies

11a and 11b arranged side by side to each other, and each joint body 11a. , 11b), two buffer grooves 17 may be formed respectively. And different pipes may be coupled to the back of each joint body (11a, 11b).

Referring to FIG. 7, at both ends of the joint body 11, the engaging

portions

12a and 12b are connected in a shape inclined with respect to the extending direction, whereby the shapes are formed on both of the engaging

portions

12a and 12b. The modified

portions

13a and 13b or 13c and 13d may have different sizes. Reinforcement stopper blocks 15a and 15b may be formed at the front and rear of the joint body 11, respectively, and a plurality of buffer grooves 17c may be formed at the bottom of the joint body 11 to be separated from each other by a separating wall. Can be. The outer circumferential surfaces of the different pipes may be fixed to the

pressing portions

14a and 14b formed at both ends of the joint body 11, and in this structure, the

different coupling parts

12a and 12b are coupled to both sides of the

different coupling portions

12a and 12b. The pipe extends at an angle rather than a right angle.

Referring to FIG. 8, the joint body 11 may be connected to the engaging portion 12 in an inclined form, the pressing portion 14 is fixed to the circumferential surface of one pipe, and the other pie is the joint body 11. It can be combined in the form that is inserted into the back of the. The

shape change portions

13a and 13b formed at both sides of the engagement portion 12 may be connected to both edges of the joint body 11 while having different sizes. In addition, the reinforcement stopper block 15 is a pillar having a pentagonal cross section consisting of two long sides, two short sides facing each other, and lateral sides having the same or similar lengths connecting each other at both ends of the long and short sides. It may be shaped, and a plurality of buffer grooves 17 may be appropriately arranged according to the shape of the cross-sectional area.

As described with reference to FIGS. 3 to 8, the joint may be made in various shapes according to the type of pipe or connector to be connected and is not limited to the embodiments shown.

The present invention has been described in detail with reference to the presented embodiments, but those skilled in the art will be able to make various modifications and modified inventions without departing from the technical spirit of the present invention with reference to the presented embodiments. . The present invention is not limited by such modified and modified inventions, but is limited by the appended claims.

Claims

A joint body 11 having an overall semi-cylindrical shape;

A coupling portion 12 formed in front of the joint body 11 and extending to be inclined;

Shape changing portions 13a and 13b which are formed to face an upper portion of the joint body 11 from the boundary of the engaging portion 12; And

It is formed on the end portion of the engaging portion 12 and includes a pressing portion 14 that contacts the outer circumferential surface of the pipe,

A joint for pipe connection characterized in that the shape of at least a part of the outer circumferential surface of the joint body 11 is deformed by the shape changing parts 13a and 13b.
The joint for pipe connection according to claim 1, characterized in that the shape changing parts (13a, 13b) are extended to both edges with the apex line (PL) of the joint body (11), thereby increasing the area.
The joint for pipe connection according to claim 1, further comprising a reinforcement stopper block (15) formed inside the joint body (11), wherein at least one buffer groove (17) is formed in the reinforcement stopper block (15). .