Pipeline branch joint assembly

Abstract

The present invention relates to a pipe branching joint assembly, and more specifically, to a pipe branching joint assembly that can reduce assembly time, has a simple structure and can save construction costs, and can effectively prevent leakage of branched fluid when the diameter of a branch hole formed in an inlet pipe is increased in order to increase the flow rate inside the branch pipe supplying fluid to a sprinkler. To this end, the joint assembly of the present invention includes: an inlet pipe, formed with a branch hole for branching the inlet fluid; a branch pipe, connected to the inlet pipe, so that the fluid branched through the branch hole flows; and a joint that connects the inlet pipe and the branch pipe to each other; wherein an extension portion is formed in the joint, and the extension portion passes through the branch hole and is inserted into the inlet pipe; the inner diameter of the extension portion is the same as the inner diameter of the inlet pipe, or is larger than the inner diameter of the inlet pipe.

Description

Technical Field

[0001] The present invention relates to a pipe branching joint assembly, and more particularly, to a pipe branching joint assembly that can reduce assembly time, has a simple structure and can save construction costs, and can effectively prevent leakage of branched fluid when the diameter of a branch hole formed at an entrance pipe is increased in order to increase the flow rate inside the branch pipe that supplies fluid to a sprinkler. Background Art

[0002] Generally, sprinklers are installed on each floor of a building such as a mansion or an apartment, and the sprinklers have sensors for sensing a fire when it occurs around a ceiling and automatically spraying a high-pressure fluid to extinguish the fire as early as possible.

[0003] For this purpose, a main pipeline for supplying fluid from the outside is provided, an inflow pipeline having a plurality of sprinklers is connected to the main pipeline, and a branch pipeline for supplying fluid to the sprinklers is provided in the inflow pipeline.

[0004] However, in the past, in order to connect the inflow pipe and the branch pipe, the branch pipe was welded to the branch hole formed in the inflow pipe, or the inflow pipe and the branch pipe were respectively provided on the T-tube forming the branch to connect the fluids with each other. However, such a method requires a lot of assembly man-hours and a large number of parts, so there is a problem of waste in construction costs.

[0005] Furthermore, in the case where the diameter of a branch hole formed in the inflow pipe is increased in order to increase the flow rate of the fluid supplied to the sprinkler, there is also a problem of leakage of the fluid.

[0006] Therefore, there is a need to improve the above-mentioned problems. Summary of the invention

[0007] (Problem to be solved)

[0008] The technical problem to be solved by the present invention is to provide a pipe branching joint assembly which can reduce assembly time and has a simple structure and can save construction costs.

[0009] In addition, the technical problem to be solved by the present invention is to provide a pipe branching joint assembly that can effectively prevent leakage of branched fluid even when the diameter of the branch hole formed in the pipe is increased in order to increase the flow rate inside the branch pipe supplying fluid to the sprinkler.

[0010] The technical problems to be solved by the present invention are not limited to these, and other technical problems not mentioned can be clearly understood by a person skilled in the art from the following description.

[0011] (Methods to solve the problem)

[0012] The joint assembly of the present invention for solving the above-mentioned problems comprises: an inflow pipe, formed with a branch hole for branching the inflow fluid; a branch pipe, connected to the inflow pipe, so that the fluid branched through the branch hole flows; and a joint, connecting the inflow pipe and the branch pipe to each other; wherein an extension portion is formed in the joint, the extension portion passes through the branch hole and is inserted into the inflow pipe; the inner diameter of the extension portion is the same as the inner diameter of the inflow pipe, or is larger than the inner diameter of the inflow pipe.

[0013] At this time, a support surface may be formed on the outer circumferential surface of the extension portion, and the support surface is supported by the inner circumferential surface of the branch hole.

[0014] At this time, the outer diameter of the extension portion is larger than the inner diameter of the inflow pipe, and the inner diameter of the branch hole may be formed to have the same size as the outer diameter of the extension portion.

[0015] At this time, an insertion groove may be formed on the inner circumferential surface of the inflow pipe, the insertion groove is formed in the insertion direction of the extension portion and has an inner diameter that is the same size as that of the branch hole.

[0016] At this time, the support surface can be inserted into and supported by the insertion groove.

[0017] At this time, a reinforcing member may be formed at the joint to pressurize the circumference of the outer peripheral surface of the inflow pipe.

[0018] At this time, a pressurizing surface is formed on the reinforcing member to pressurize the circumference of the outer peripheral surface of the inflow pipe, and support walls protruding in the radial direction of the inflow pipe can be formed on both sides of the pressurizing surface.

[0019] At this time, an insertion groove may be formed on the inner circumferential surface of the inflow pipe, the insertion groove is formed in the insertion direction of the extension portion and has an inner diameter that is the same size as that of the branch hole.

[0020] At this time, the support surface can be inserted into and supported by the insertion groove.

[0021] At this time, the support surface may include: a first support surface, which is arranged opposite to the radial direction of the inflow pipe to be inserted into and supported in the insertion groove; and a second support surface, which is arranged opposite to the axial direction of the inflow pipe and is tightly supported by the inner circumferential surface of the branch hole.

[0022] At this time, the first supporting surface may extend integrally with the second supporting surface.

[0023] At this time, the first supporting surface and the second supporting surface may be spaced apart from each other.

[0024] At this time, a reinforcing member may be formed at the joint to pressurize the periphery of the outer circumference of the inflow pipe.

[0025] At this time, a pressurizing surface is formed on the reinforcing member to pressurize the periphery of the outer peripheral surface of the inflow pipe, and support walls protruding in the radial direction of the inflow pipe may be formed on both sides of the pressurizing surface.

[0026] (Effects of the Invention)

[0027] The pipe branching joint assembly of the present invention having the above-mentioned structure can be constructed by tightening the joint in the incoming pipe, thereby reducing assembly time and construction costs. Not only does it form an extension portion inserted into the interior of the incoming pipe, it can also effectively prevent leakage of branch fluid when the diameter of the branch hole formed in the incoming pipe is enlarged.

[0028] In particular, according to the UL (Underwriters Laboratories Inc.) standard, in order to use a branch pipe having the same inner diameter as that of the inflow pipe, the inner diameter of the portion branched from the inflow pipe should be the same as the inner diameter of the inflow pipe, and as described above, the inner diameter of the extension portion formed at the joint is the same as or larger than the inner diameter of the inflow pipe, so a branch pipe having the same inner diameter as that of the inflow pipe can be used.

[0029] The effects of the present invention are not limited to the above-mentioned effects, but should be understood to include all structures that can be guessed from the structures of the invention described in the detailed description of the present invention or the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a three-dimensional view of a joint assembly according to an embodiment of the present invention.

[0031] Figure 2 1 is a perspective view showing an inlet pipe to which a joint assembly according to an embodiment of the present invention is fastened.

[0032] Figure 3 It is a front view of a joint assembly according to an embodiment of the present invention.

[0033] Figure 4 It is an exploded perspective view of a joint assembly according to an embodiment of the present invention.

[0034] Figure 5 and Figure 6 As a cross-sectional view of a connector assembly according to an embodiment of the present invention, Figure 5 is a diagram showing a state of cutting along the radial direction of the flow-in pipe, Figure 6 It is a diagram showing a state of cutting along the axial direction of the inflow pipe.

[0035] Figure 7 It is a cross-sectional view of a reinforcement member of a joint assembly according to an embodiment of the present invention.

[0036] Figure 8 1 is a perspective view showing an inlet pipe to which a joint assembly according to another embodiment of the present invention is fastened.

[0037] Fig. 9 It is a front view of a joint assembly according to another embodiment of the present invention.

[0038] Fig.10 It is an exploded perspective view of a joint assembly according to another embodiment of the present invention.

[0039] Fig.11 This is a cross-sectional view showing a state where a joint assembly according to another embodiment of the present invention is cut along a radial direction of an inflow pipe.

[0040] Fig.12 This is a cross-sectional view showing a state where a joint assembly according to another embodiment of the present invention is cut along the axial direction of an inflow pipe.

[0041] Fig.13 It is a front view of a joint assembly according to another embodiment of the present invention.

[0042] Fig.14 It is an exploded perspective view of a joint assembly according to another embodiment of the present invention.

[0043] Fig.15 and Fig.16 This is a cross-sectional view showing a state where a joint assembly according to another embodiment of the present invention is cut along the radial direction of an inflow pipe.

[0044] Fig.17 This is a cross-sectional view showing a state where a joint assembly according to another embodiment of the present invention is cut along the axial direction of the inflow pipe.

[0045] Fig.18 It is a front view of a joint assembly according to another embodiment of the present invention.

[0046] Fig.19 It is an exploded perspective view of a joint assembly according to another embodiment of the present invention.

[0047] Fig. 20 and Fig.21 This is a cross-sectional view showing a state where a joint assembly according to another embodiment of the present invention is cut along the radial direction of an inflow pipe.

[0048] Fig. 22 This is a cross-sectional view showing a state where a joint assembly according to another embodiment of the present invention is cut along the axial direction of the inflow pipe.

[0049] Fig.23 It is a front view of a joint assembly according to another embodiment of the present invention.

[0050] Fig.24It is an exploded perspective view of a joint assembly according to another embodiment of the present invention.

[0051] Fig.25 and Fig.26 This is a cross-sectional view showing a state where a joint assembly according to another embodiment of the present invention is cut along the radial direction of an inflow pipe.

[0052] Fig. 27 This is a cross-sectional view showing a state where a joint assembly according to another embodiment of the present invention is cut along the axial direction of the inflow pipe.

[0053] Fig.28 It is a cross-sectional view of a reinforcement member of a joint assembly according to another embodiment of the present invention. DETAILED DESCRIPTION

[0054] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that a person having ordinary knowledge in the technical field to which the present invention belongs can easily implement the present invention. The present invention can be implemented in various forms and is not limited to the embodiments described herein. In order to clearly illustrate the present invention, parts not related to the description are omitted in the accompanying drawings, and the same reference numerals are given to the same or similar components throughout the specification.

[0055] In this specification, terms such as "including" or "having" should be understood as specifying the existence of features, numbers, steps, actions, components, parts or combinations of these recorded in the specification, and do not exclude in advance the possibility of the existence or increase of one or more other features or numbers, steps, actions, components, parts or combinations of these.

[0056] Figure 1 is a three-dimensional diagram of a joint assembly according to an embodiment of the present invention; Figure 2 is a perspective view showing an inflow pipe fastened with a joint assembly according to an embodiment of the present invention; Figure 3 is a front view of a joint assembly according to an embodiment of the present invention; Figure 4 is an exploded perspective view of a connector assembly according to an embodiment of the present invention; Figure 5 and Figure 6 As a cross-sectional view of a connector assembly according to an embodiment of the present invention, Figure 5 is a diagram showing a state of cutting along the radial direction of the flow-in pipe, Figure 6 is a diagram showing a state of cutting along the axial direction of the inflow pipe; Figure 7 It is a cross-sectional view of a reinforcement member of a joint assembly according to an embodiment of the present invention.

[0057] Below, refer to Figures 1 to 7 The structure shown is explained.

[0058] like Figure 1As shown, the joint assembly of the present invention includes: an inflow pipe 10, which is formed with a branch hole 11 for branching the inflow fluid; a branch pipe 20, which is connected to the inflow pipe 10 to allow the fluid branched through the branch hole 11 to flow; and a joint 100, which connects the inflow pipe 10 and the branch pipe 20 to each other; wherein, an extension portion 110 is formed in the joint 100, and the extension portion 110 passes through the branch hole 11 and is inserted into the inflow pipe 10, and the inner diameter (CID) of the extension portion 110 is formed to be the same size as the inner diameter (PID) of the inflow pipe 10.

[0059] That is, the construction can be performed in a simple manner of fastening the joint 100 to the inlet pipe 10, so the assembly man-hours can be reduced and the construction cost can be saved.

[0060] In addition, according to the UL (Underwriters Laboratories Inc.) standard, in order to use the branch pipe 20 having the same inner diameter as the inflow pipe 10, the inner diameter of the portion where the inflow pipe 10 branches should be the same as the inner diameter of the inflow pipe 10. As described above, the inner diameter (CID) of the extension portion 110 formed in the joint 100 is the same as the inner diameter (PID) of the inflow pipe 10, so the branch pipe 20 having the same inner diameter as the inflow pipe 10 can be used.

[0061] The joint 100 has a first portion and a second portion. The first portion is disposed at the upper portion of the inflow pipe 10 with the inflow pipe 10 as the center to connect the branch pipe 20 , and the second portion is disposed at the lower portion of the inflow pipe 10 to be fastened to the first portion.

[0062] In order to fix the first part and the second part to each other in the state of being arranged at the upper part and the lower part of the inflow pipe 10, a flange 130 is formed through which a fixing member passes. The fixing member can use a fixing member such as a nut or a bolt, but any structure can be used as long as it can fix the first part and the second part to each other.

[0063] Meanwhile, a support protrusion 140 may be formed on the second portion to pressurize the outer circumferential surface of the inflow pipe 10, and the support protrusion 140 may also support the joint 100 when an external force is applied after the joint 100 is installed, thereby preventing the joint 100 from rotating along the circumferential direction of the inflow pipe 10. The support protrusion 140 may be composed of a plurality of support protrusions 140 separated from each other along the circumferential direction of the inflow pipe 10 or the axial direction of the inflow pipe 10.

[0064] A gasket made of elastic material may be disposed between the inflow pipe 10 and the joint 100 . When the joint 100 is installed, the gasket is pressurized by the tightening force generated by the fixing component and effectively prevents fluid leakage.

[0065] At this time, a support surface 111 may be formed on the outer circumference of the extension portion 110, and the support surface 111 is supported by the inner circumference of the inflow pipe 10. That is, when the joint 100 is installed, the extension portion 110 is disposed inside the inflow pipe 10 through the branch hole 11. If the support surface 111 is formed on the outer circumference of the extension portion 110, the inner circumference of the inflow pipe 10 and the outer circumference of the extension portion 110 are supported closely to each other.

[0066] That is, a fluid flow along the axial direction of the inflow pipe 10 and a fluid flow along the radial direction of the inflow pipe 10 to be branched by the branch pipe 20 are formed in the portion where the joint 100 is installed. As described above, if a support surface 111 is formed on the outer peripheral surface of the extension portion 110, the inner peripheral surface of the inflow pipe 10 and the outer peripheral surface of the extension portion 110 are closely supported to each other without hindering the flow of these fluids, thereby allowing the fluid to flow smoothly.

[0067] At this time, the outer diameter (COD) of the extension portion 110 is larger than the inner diameter (PID) of the inflow pipe 10. As described above, the inner diameter (CID) of the extension portion 110 is the same as the inner diameter (PID) of the inflow pipe 10, and such an extension portion 110 has a predetermined thickness so as to effectively support the external force when an external force is applied to the joint 100, so the outer diameter (COD) of the extension portion 110 is larger than the inner diameter (PID) of the inflow pipe 10.

[0068] In addition, the inner diameter (HID) of the branch hole 11 can be formed to be the same size as the outer diameter (COD) of the extension 110. With such a configuration, when the extension 110 is inserted into the branch hole 11, the outer circumferential surface of the extension 110 and the inner circumferential surface of the branch hole 11 are closely supported to each other, and fluid leakage therebetween can be effectively prevented. Moreover, the staff can simply set the extension 110 and the branch hole at an accurate position by inserting the extension 110 into the branch hole 11, so that easy and quick setting can be achieved.

[0069] As described above, in order to make the inner diameter (HID) of the branch hole 11 the same size as the outer diameter (COD) of the extension portion 110, the staff forms the branch hole 11 by punching a hole into the outer circumferential surface of the pipe 10 using a tool having the same size as the outer diameter (COD) of the extension portion 110.

[0070] At this time, an insertion groove 12 is formed on the inner circumference of the inflow pipe 10, and the insertion groove 12 is formed in the insertion direction of the extension 110 and has the same inner diameter as the branch hole 11. In order to form the branch hole 11, the worker punches the outer circumference of the inflow pipe 10 using a tool having the same size as the outer diameter (COD) of the extension 110, and continues to punch even if the branch hole 11 has been formed on the upper surface of the inflow pipe 10, and punches until the insertion groove 12 for inserting the extension 110 is finally formed on the inner circumference portion arranged on the side of the inflow pipe 10.

[0071] That is, Figure 5 As shown, the inner diameter (PID) of the inlet pipe 10 and the inner diameter (CID) of the extension portion 110 form the same size, so the instantaneous flow rate of the fluid flowing inside the inlet pipe 10 at the extension portion 110, that is, the part branched by the branch pipe 20, is the same as the instantaneous flow rate of the fluid flowing in the inlet pipe 10. Accordingly, in order to use the branch pipe 20 having the same inner diameter as the inlet pipe 10, the conditions required by the UL standard will be met.

[0072] In addition, since the extension part 110 having an inner diameter larger than the inner diameter (PID) of the inflow pipe 10 is inserted, fluid leakage is effectively prevented, and in order to ensure a stable support structure, the extension part 110 is installed in the insertion groove 12 formed on the side of the inflow pipe 10 in a state of penetrating the upper surface of the inflow pipe 10. That is, the support surface 111 formed on the extension part 110 is inserted and supported in the insertion groove 12.

[0073] At this time, the cross-sectional shape of the extension portion 110 is formed into a shape in which a part is removed from a shape having the same circular circumference as the inflow pipe 10. That is, the cross-sectional shape of the extension portion 110 is preferably formed into a shape that does not act as a resistance to the fluid flowing along the axial direction of the inflow pipe 10 when the extension portion 110 is inserted into the inflow pipe 10, such as Figure 5 As shown, the remaining portion except for the portion inserted into the insertion groove 12 of the inlet pipe 10 is removed.

[0074] With such a configuration, the fluid flowing into the pipe 10 can flow smoothly. Moreover, the extension portion 110 is supported by the insertion groove 12 formed in the pipe 10 , so the joint 100 can be stably supported.

[0075] At this time, a reinforcing member 120 may be formed on the joint 100 to pressurize the circumference of the outer peripheral surface of the inflow pipe 10. An extension rib is formed on the gasket, and the extension rib extends along the axial direction of the inflow pipe 10 to increase the area close to the outer peripheral surface of the inflow pipe 10, and the reinforcing member 120 formed on the joint 100 pressurizes the extension rib to effectively prevent fluid leakage.

[0076] To this end, a pressurizing surface 121 is formed on the reinforcing member 120 to pressurize the circumference of the outer circumference of the inflow pipe 10, thereby pressurizing the above-mentioned extended ribs. At the same time, support walls 121a protruding in the radial direction of the inflow pipe 10 may be formed on both sides of the pressurizing surface 121 formed on the reinforcing member 120. That is, as Figure 7 As shown, since the support wall 121a is not formed on the upper part of the pressurizing surface 121, the gasket can be pressurized when the joint 100 is installed until the upper part of the pressurizing surface 121 contacts the outer peripheral surface of the inlet pipe 10. Therefore, even if the size of the branch hole 11 is larger than the inner diameter (PID) of the inlet pipe 10, fluid leakage can be effectively prevented.

[0077] Support walls 121a protruding in the radial direction of the inflow pipe 10 may be formed on both sides of the pressurizing surface 121. That is, when the joint 100 is installed, the support wall 121a is formed to partially pressurize the gasket until the support wall 121a contacts the outer peripheral surface of the inflow pipe 10. At this time, the support wall 121a also supports the extension rib of the gasket when pressure is applied due to the flow of fluid, thereby preventing the gasket from falling off to the outside, and not only that, but also preventing the extension rib from being exposed to the outside, thereby effectively preventing the gasket from being reduced in durability.

[0078] That is, since no support wall 121a is formed on the upper portion of the pressurized surface 121, the gasket is fully pressurized to effectively prevent fluid leakage around the branch hole 11, and support walls 121a are formed on both sides of the pressurized surface 121, so that the pressurization degree of the gasket can be reduced to a certain extent. However, this is a portion that is separated from the branch hole 11 by a predetermined distance, so that fluid leakage can be effectively prevented even in such a state of reduced pressurization. Not only that, it is also possible to effectively prevent the gasket from falling off and being exposed to the outside.

[0079] Figure 8 is a perspective view showing an inflow pipe fastened with a joint assembly according to another embodiment of the present invention; Fig. 9 is a front view of a joint assembly according to another embodiment of the present invention; Fig.10 is an exploded perspective view of a connector assembly according to another embodiment of the present invention; Fig.11 is a cross-sectional view showing a state where a joint assembly according to another embodiment of the present invention is cut along a radial direction of an inflow pipe; Fig.12 This is a cross-sectional view showing a state where a joint assembly according to another embodiment of the present invention is cut along the axial direction of an inflow pipe.

[0080] like Figure 1 As shown, the joint assembly of the present invention includes: an inflow pipe 10, into which fluid flows; a branch pipe 20, which is connected to the inflow pipe 10 to allow the branched fluid to flow; and a joint 100, which connects the inflow pipe 10 and the branch pipe 20 to each other. Figure 8 As shown, a branch hole 11 is formed in the inflow pipe 10 for branching the inflow fluid.

[0081] That is, the fluid flowing into the inlet pipe 10 passes through the joint 100 through the branch hole 11 and then flows into the branch pipe 20 .

[0082] like Fig. 9 and Fig.10 As shown, an extension portion 110 is formed on the joint 100 , and the extension portion 110 passes through the branch hole 11 and is inserted into the interior of the inflow pipe 10 .

[0083] At this time, the inner diameter (CID) of the extension portion 110 is the same as the inner diameter (PID) of the inflow pipe 10, or Fig.11 As shown, it may be larger than the inner diameter (PID) of the inflow conduit 10 .

[0084] That is, the construction can be performed in a simple manner of fastening the joint 100 to the inlet pipe 10, so the assembly man-hours can be reduced and the construction cost can be saved.

[0085] In addition, according to the UL (Underwriters Laboratories Inc.) standard, in order to use the branch pipe 20 having the same inner diameter as the inflow pipe 10, the inner diameter of the portion branched from the inflow pipe 10 should be the same as the inner diameter of the inflow pipe 10, and as described above, the inner diameter (CID) of the extension portion 110 formed in the joint 100 is formed to be the same size as the inner diameter (PID) of the inflow pipe 10, so that the branch pipe 20 having the same size as the inner diameter of the inflow pipe 10 can be used.

[0086] At the same time, if Fig.11 As shown, the inner diameter (CID) of the extension portion 110 can also be formed to be larger than the inner diameter (PID) of the inflow pipe 10. Such a structure can not only meet the UL standard, but also allow the branch fluid to flow more smoothly, thereby ensuring sufficient flow inside the branch pipe 20.

[0087] In order to fix the first part and the second part to each other in the state of being arranged at the upper part and the lower part of the inflow pipe 10, a flange 130 is formed through which a fixing member passes. The fixing member can be a fixing member such as a nut or a bolt, but any structure can be used as long as it can fix the first part and the second part to each other. Alternatively, Fig. 9 As shown, the first part may be arranged at the upper part of the inflow pipe 10 and fixed at the lower part of the inflow pipe 10 by using a fixing member such as a U bolt.

[0088] Meanwhile, a support protrusion may be formed on the second portion to pressurize the outer circumferential surface of the inflow pipe 10, and the support protrusion also supports the joint 100 when an external force is applied after the joint 100 is installed, thereby preventing the joint 100 from rotating along the circumferential direction of the inflow pipe 10. The support protrusion may be composed of a plurality of support protrusions separated from each other along the circumferential direction of the inflow pipe 10 or the axial direction of the inflow pipe 10.

[0089] A gasket made of elastic material may be provided between the inflow pipe 10 and the joint 100 , and the gasket is pressurized by the tightening force generated by the fixing member when the joint 100 is installed, and effectively prevents fluid leakage.

[0090] At this time, if Fig.10 As shown, a support surface 111 may be formed on the outer circumference of the extension portion 110, and the support surface 111 is supported by the inner circumference of the branch hole 11. That is, the fluid flow along the axial direction of the inflow pipe 10 and the fluid flow along the radial direction of the inflow pipe 10 to be branched by the branch pipe 20 are formed in the portion where the joint 100 is installed. As described above, if the support surface 111 is formed on the outer circumference of the extension portion 110, the support surface 111 and the inner circumference of the branch hole 11 are closely supported to each other, and leakage of the branched fluid can be effectively prevented.

[0091] At this time, the outer diameter (COD) of the extension portion 110 is larger than the inner diameter (PID) of the inflow pipe 10. As described above, the inner diameter (CID) of the extension portion 110 is the same as or larger than the inner diameter (PID) of the inflow pipe 10, and such an extension portion 110 has a predetermined thickness so as to effectively support the external force when an external force is applied to the joint 100, so the outer diameter (COD) of the extension portion 110 is larger than the inner diameter (PID) of the inflow pipe 10.

[0092] In addition, the inner diameter (HID) of the branch hole 11 can be formed to be the same size as the outer diameter (COD) of the extension 110. With such a configuration, when the extension 110 is inserted into the branch hole 11, the outer circumferential surface of the extension 110 and the inner circumferential surface of the branch hole 11 are closely supported to each other, and fluid leakage therebetween can be effectively prevented. Moreover, the staff can simply set the extension 110 and the branch hole at an accurate position by inserting the extension 110 into the branch hole 11, so that easy and quick setting can be achieved.

[0093] As described above, in order to make the inner diameter (HID) of the branch hole 11 the same size as the outer diameter (COD) of the extension portion 110, the staff forms the branch hole 11 by punching a hole into the outer circumferential surface of the pipe 10 using a tool having the same size as the outer diameter (COD) of the extension portion 110.

[0094] At this time, an insertion groove 12 is formed on the inner circumference of the inflow pipe 10, and the insertion groove 12 is formed in the insertion direction of the extension 110 and has the same inner diameter as the branch hole 11. In order to form the branch hole 11, the worker punches the outer circumference of the inflow pipe 10 using a tool having the same size as the outer diameter (COD) of the extension 110, and continues to punch even if the branch hole 11 has been formed on the upper surface of the inflow pipe 10, and punches until the insertion groove 12 for inserting the extension 110 is finally formed on the inner circumference portion arranged on the side of the inflow pipe 10. At this time, the punching is performed in a state where the central axis of the punching tool is arranged to intersect with the central axis of the inflow pipe 10, and in the punching process, in order to keep the arrangement state stable, the inflow pipe 10 is punched in a state where both ends of the inflow pipe 10 are firmly fastened.

[0095] That is, since the inner diameter (CID) of the extension portion 110 is the same as the inner diameter (PID) of the inflow pipe 10, or as Fig.11 As shown, it is larger than the inner diameter (PID) of the inlet pipe 10, so the instantaneous flow rate of the fluid flowing inside the inlet pipe 10 in the extension portion 110, that is, the part branched by the branch pipe 20, is the same as or larger than the instantaneous flow rate of the fluid flowing in the inlet pipe 10 according to the situation. In order to use the branch pipe 20 with an inner diameter of the same size as the inlet pipe 10, the conditions required by the UL standard will be met.

[0096] In addition, the extension portion 110 is inserted into the insertion groove 12 and supported in a state of penetrating the branch hole 11 formed in the inflow pipe 10 , thereby effectively preventing fluid leakage and ensuring a stable supporting structure.

[0097] At this time, the cross-sectional shape of the extension portion 110 is formed into a shape in which a part is removed from a shape having the same circular circumference as the inflow pipe 10. That is, the cross-sectional shape of the extension portion 110 is preferably formed into a shape that does not act as a resistance to the fluid flowing along the axial direction of the inflow pipe 10 when the extension portion 110 is inserted into the inflow pipe 10, such as Fig.11 As shown, the remaining portion except for the portion inserted into the insertion groove 12 of the inlet pipe 10 is removed.

[0098] With such a configuration, the fluid flowing into the pipe 10 can flow smoothly. Moreover, the extension portion 110 is supported by the insertion groove 12 formed in the pipe 10 , so the joint 100 can be stably supported.

[0099] At this time, the supporting surface 111 may include a first supporting surface and a second supporting surface. The first supporting surface is arranged to face each other in the radial direction of the flow-in pipe 10 to be inserted into the insertion groove 12 and supported, and the second supporting surface is arranged to face each other in the axial direction of the flow-in pipe to be tightly supported by the inner circumferential surface of the branch hole 11.

[0100] That is, after the inflow pipe 10 and the branch pipe 20 are fixed to each other by the joint 100, external force is applied to the branch pipe 20 in various directions. In particular, in the UL certification process, the external force is applied to the branch pipe 20, and the external force is applied to the branch pipe 20 in the same direction as the axial direction of the inflow pipe 10, or in the tangential direction in contact with the outer peripheral surface of the inflow pipe 10. As described above, if a first support surface is formed to be arranged in a radial direction opposite to the inflow pipe 10 and inserted into the insertion groove 12 and supported, the branch pipe 20 can be stably supported even when an external force is applied to the branch pipe 20 in a tangential direction in contact with the outer peripheral surface of the inflow pipe 10. If a second support surface is formed to be arranged in a radial direction opposite to the inflow pipe and supported by the inner peripheral surface of the branch hole 11, the branch pipe 20 can be stably supported even when an external force is applied to the branch pipe 20 in the same direction as the axial direction of the inflow pipe 10.

[0101] The first supporting surface and the second supporting surface can be extended into one body. In this way, the first supporting surface and the second supporting surface are continuously and tightly attached to the inner circumference of the branch hole 11 and the insertion groove 12, thereby effectively preventing fluid leakage during branching.

[0102] At this time, if Fig.12 As shown, a reinforcing member 120 may be formed on the joint 100 to pressurize the circumference of the outer circumference of the inflow pipe 10. An extension rib is formed on the gasket, and the extension rib extends along the axial direction of the inflow pipe 10 to increase the area close to the outer circumference of the inflow pipe 10. The reinforcing member 120 formed on the joint 100 pressurizes the extension rib to effectively prevent fluid leakage. The detailed structure of the reinforcing member 120 will be described later.

[0103] Fig.13 is a front view of a joint assembly according to another embodiment of the present invention; Fig.14 is an exploded perspective view of a connector assembly according to another embodiment of the present invention; Fig.15 and Fig.16 is a cross-sectional view showing a state where a joint assembly according to another embodiment of the present invention is cut along a radial direction of an inflow pipe; Fig.17 This is a cross-sectional view showing a state where a joint assembly according to another embodiment of the present invention is cut along the axial direction of the inflow pipe.

[0104] like Fig.13 and Fig.14 As shown, an extension portion 110 is formed on the joint 100 , and the extension portion 110 passes through the branch hole 11 and is inserted into the interior of the inflow pipe 10 .

[0105] At this time, if Fig.15As shown, the inner diameter (CID) of the extension 110 is the same as the inner diameter (PID) of the inlet pipe 10, or, as shown in FIG. Fig.16 As shown, it may be larger than the inner diameter (PID) of the inflow conduit 10 .

[0106] That is, the construction can be carried out in a simple manner of fastening the joint 100 to the inflow pipe 10, thereby reducing the assembly time and saving the construction cost. In addition, according to the UL (Underwriters Laboratories, Inc.) standard, in order to use the branch pipe 20 having the same inner diameter as the inflow pipe 10, the inner diameter of the portion branching from the inflow pipe 10 should be the same as the inner diameter of the inflow pipe 10, and the inner diameter (CID) of the extension portion 110 formed at the joint 100 is the same as or larger than the inner diameter (PID) of the inflow pipe 10. Therefore, even if the branch pipe 20 having the same inner diameter as the inflow pipe 10 is used, the UL standard can be met. Not only that, the branched fluid can flow more smoothly, so a sufficient flow rate can be ensured inside the branch pipe 20.

[0107] At this time, the outer diameter (COD) of the extension portion 110 is larger than the inner diameter (PID) of the inflow pipe 10, and the inner diameter (HID) of the branch hole 11 is formed to be the same size as the outer diameter (COD) of the extension portion 110, which is the same as the above embodiment.

[0108] In addition, as described above, an insertion groove 12 is formed on the inner circumferential surface of the inflow pipe 10. The insertion groove 12 is formed in the insertion direction of the extension portion 110 and has an inner diameter of the same size as the branch hole 11. When the extension portion 110 passes through the branch hole 11 formed in the inflow pipe 10, it is inserted into the insertion groove 12 and supported, thereby effectively preventing fluid leakage and ensuring a stable support structure.

[0109] At this time, the support surface 111 may include a first support surface and a second support surface, wherein the first support surface is arranged to face each other in the radial direction of the inflow pipe 10 to be inserted into the insertion groove 12 and supported, and the second support surface is arranged to face each other in the axial direction of the inflow pipe to be closely supported by the inner circumference of the branch hole 11. The first support surface and the second support surface may be arranged to be spaced apart from each other, and in this configuration, even if external forces are applied to the branch pipe 20 in various directions, the branch pipe 20 can be stably supported, and the weight of the extension portion 110 is reduced, thereby achieving lightweight.

[0110] At the same time, if Fig.17 As shown, the structure of the reinforcing member 120 forming the circumference of the outer circumference of the pressurized flow-in pipe 10 on the joint 100 is the same as that of the above-mentioned embodiment.

[0111] Fig.18 is a front view of a joint assembly according to another embodiment of the present invention; Fig.19is an exploded perspective view of a connector assembly according to another embodiment of the present invention; Fig. 20 and Fig.21 is a cross-sectional view showing a state where a joint assembly according to another embodiment of the present invention is cut along a radial direction of an inflow pipe; Fig. 22 This is a cross-sectional view showing a state where a joint assembly according to another embodiment of the present invention is cut along the axial direction of the inflow pipe.

[0112] like Fig.18 and Fig.19 As shown, an extension portion 110 is formed on the joint 100 , and the extension portion 110 passes through the branch hole 11 and is inserted into the interior of the inflow pipe 10 .

[0113] At this time, if Fig. 20 As shown, the inner diameter (CID) of the extension 110 is the same as the inner diameter (PID) of the inlet pipe 10, or, as shown in FIG. Fig.21 As shown, it may be larger than the inner diameter (PID) of the inflow conduit 10 .

[0114] That is, as described above, construction can be performed in a simple manner of fastening the joint 100 to the inflow pipe 10, thereby reducing assembly time and saving construction costs; in addition, according to the UL (Underwriters Laboratories, Inc.) standard, in order to use a branch pipe 20 having the same inner diameter as the inflow pipe 10, the inner diameter of the portion branching from the inflow pipe 10 should be the same as the inner diameter of the inflow pipe 10, and the inner diameter (CID) of the extension portion 110 formed at the joint 100 is the same as or larger than the inner diameter (PID) of the inflow pipe 10. Therefore, even if a branch pipe 20 having the same inner diameter as the inflow pipe 10 is used, the UL standard can be met. Not only that, the branched fluid can flow more smoothly, so a sufficient flow rate can be ensured inside the branch pipe 20.

[0115] At this time, the outer diameter (COD) of the extension portion 110 is larger than the inner diameter (PID) of the inflow pipe 10, and the inner diameter (HID) of the branch hole 11 is formed to be the same size as the outer diameter (COD) of the extension portion 110, which is the same as the above embodiment.

[0116] In addition, as described above, an insertion groove 12 is formed on the inner circumferential surface of the inflow pipe 10. The insertion groove 12 is formed in the insertion direction of the extension portion 110 and has an inner diameter of the same size as the branch hole 11. When the extension portion 110 passes through the branch hole 11 formed in the inflow pipe 10, it is inserted into the insertion groove 12 for support, thereby effectively preventing fluid leakage and ensuring a stable support structure.

[0117] At this time, the support surface 111 may include a first support surface and a second support surface, wherein the first support surface is arranged to face each other in the radial direction of the flow-in pipe 10 to be inserted into the insertion groove 12 and supported, and the second support surface is arranged to face each other in the axial direction of the flow-in pipe to be closely supported by the inner circumference of the branch hole 11. The first support surface and the second support surface may extend into one piece, and in such a configuration, the first support surface and the second support surface are continuously closely attached to the inner circumference of the branch hole 11 and the insertion groove 12, thereby effectively preventing fluid leakage during branching.

[0118] At the same time, if Fig. 22 As shown, the structure of the reinforcing member 120 forming the circumference of the outer circumference of the pressurized flow-in pipe 10 on the joint 100 is the same as that of the above-mentioned embodiment.

[0119] Fig.23 is a front view of a joint assembly according to another embodiment of the present invention; Fig.24 is an exploded perspective view of a connector assembly according to another embodiment of the present invention; Fig.25 and Fig.26 is a cross-sectional view showing a state where a joint assembly according to another embodiment of the present invention is cut along a radial direction of an inflow pipe; Fig. 27 This is a cross-sectional view showing a state where a joint assembly according to another embodiment of the present invention is cut along the axial direction of the inflow pipe.

[0120] like Fig.23 and Fig.24 As shown, an extension portion 110 is formed on the joint 100 , and the extension portion 110 passes through the branch hole 11 and is inserted into the interior of the inflow pipe 10 .

[0121] At this time, if Fig.25 As shown, the inner diameter (CID) of the extension 110 is the same as the inner diameter (PID) of the inlet pipe 10, or, as shown in FIG. Fig.26 As shown, it may be larger than the inner diameter (PID) of the inflow conduit 10 .

[0122] That is, as described above, construction can be performed in a simple manner of fastening the joint 100 to the inflow pipe 10, thereby reducing assembly time and saving construction costs; in addition, according to the UL (Underwriters Laboratories, Inc.) standard, in order to use a branch pipe 20 having the same inner diameter as the inflow pipe 10, the inner diameter of the portion branching from the inflow pipe 10 should be the same as the inner diameter of the inflow pipe 10, and the inner diameter (CID) of the extension portion 110 formed in the joint 100 is the same as or larger than the inner diameter (PID) of the inflow pipe 10, so even if a branch pipe 20 having the same inner diameter as the inflow pipe 10 is used, the UL standard can be met, and not only that, the branched fluid can flow more smoothly, so a sufficient flow rate can be ensured inside the branch pipe 20.

[0123] At this time, the outer diameter (COD) of the extension portion 110 is larger than the inner diameter (PID) of the inflow pipe 10, and the inner diameter (HID) of the branch hole 11 is formed to be the same size as the outer diameter (COD) of the extension portion 110, which is the same as the structure of the above embodiment.

[0124] In addition, as described above, an insertion groove 12 is formed on the inner circumferential surface of the inflow pipe 10. The insertion groove 12 is formed in the insertion direction of the extension portion 110 and has an inner diameter of the same size as the branch hole 11. When the extension portion 110 passes through the branch hole 11 formed in the inflow pipe 10, it is inserted into the insertion groove 12 and supported, thereby effectively preventing fluid leakage and ensuring a stable support structure.

[0125] At this time, the support surface 111 may include a first support surface and a second support surface, wherein the first support surface is arranged to face each other in the radial direction of the flow into the pipe 10 to be inserted into the insertion groove 12 and supported, and the second support surface is arranged to face each other in the axial direction of the flow into the pipe to be tightly supported by the inner circumference of the branch hole 11. The first support surface is formed to have a minimum size to prevent leakage of the branched fluid and to support external forces, and the second support surface can be formed to have a sufficient size. The first support surface and the second support surface can be extended into one body, and in such a configuration, the first support surface and the second support surface are continuously and tightly attached to the inner circumference of the branch hole 11 and the insertion groove 12, thereby effectively preventing leakage of the fluid during branching, and not only that, but also reducing the weight of the extension portion 110, thereby achieving lightweighting.

[0126] At the same time, if Fig. 27 As shown, the structure of the reinforcing member 120 forming the circumference of the outer circumference of the pressurized flow-in pipe 10 on the joint 100 is the same as that of the above-mentioned embodiment.

[0127] Fig.28 It is a cross-sectional view of a reinforcement member of a joint assembly according to another embodiment of the present invention.

[0128] The reinforcing member 120 is formed with a pressurizing surface 121 to pressurize the outer circumference of the inflow pipe 10, thereby pressurizing the extension ribs. At the same time, support walls 121a protruding in the radial direction of the inflow pipe 10 may be formed on both sides of the pressurizing surface 121 formed on the reinforcing member 120. That is, Fig.28 As shown, since the support wall 121a is not formed on the upper portion of the pressurizing surface 121, the gasket can be pressurized until the upper portion of the pressurizing surface 121 contacts the outer peripheral surface of the inlet pipe 10 when the joint 100 is installed. Therefore, even if the size of the branch hole 11 is larger than the inner diameter (PID) of the inlet pipe 10, fluid leakage can be effectively prevented.

[0129] On the contrary, support walls 121a protruding in the radial direction of the inflow pipe 10 may be formed on both sides of the pressurizing surface 121. That is, when the joint 100 is installed, the gasket is pressurized by the portion formed with the support wall 121a until the support wall 121a contacts the outer peripheral surface of the inflow pipe 10. At this time, the support wall 121a also supports the extension rib of the gasket when pressure is applied due to the flow of fluid, thereby preventing the gasket from falling off to the outside, and not only that, but also preventing the extension rib from being exposed to the outside, thereby effectively preventing the gasket from being reduced in durability.

[0130] That is, since no support wall 121a is formed on the upper part of the pressurized surface 121, the gasket is fully pressurized to effectively prevent fluid leakage around the branch hole 11, and support walls 121a are formed on both sides of the pressurized surface 121, so the pressurization degree of the gasket can be reduced to a part, but this is a part separated from the branch hole 11 by a predetermined distance, so that fluid leakage can be effectively prevented even in the state of reduced pressurization. Not only that, it can effectively prevent the gasket from falling off and being exposed to the outside.

[0131] An embodiment of the present invention has been described, but the concept of the present invention is not limited to the embodiment presented in this specification. A technician who understands the concept of the present invention can easily propose other embodiments within the same scope of the concept by adding, changing, deleting, increasing, etc. components, and this is also included in the scope of the concept of the present invention.

Claims

1. A joint assembly, comprising: an inflow pipe formed with a branch hole for branching the inflow fluid; a branch pipe communicating with the inflow pipe so as to allow the fluid branched through the branch hole to flow; and a joint connecting the inflow pipe and the branch pipe to each other; Wherein, an extension portion is formed on the joint, and the extension portion passes through the branch hole and is inserted into the inflow pipe; The inner diameter of the extension portion is the same as the inner diameter of the inflow pipe, or is larger than the inner diameter of the inflow pipe; An insertion groove is formed on the inner peripheral surface of the inflow pipe, the insertion groove is formed in the insertion direction of the extension portion and has an inner diameter that is the same size as that of the branch hole.

2. The joint assembly according to claim 1, characterized in that: A support surface is formed on the outer circumferential surface of the extension portion, and the support surface is supported by the inner circumferential surface of the branch hole.

3. The joint assembly according to claim 2, characterized in that: The outer diameter of the extension portion is larger than the inner diameter of the inflow pipe, and the inner diameter of the branch hole is formed to have the same size as the outer diameter of the extension portion.

4. The joint assembly according to claim 2, characterized in that: The support surface is inserted into and supported by the insertion groove.

5. The joint assembly according to claim 4, characterized in that: A reinforcing member is formed at the joint to pressurize the circumference of the outer peripheral surface of the inflow pipe.

6. The joint assembly according to claim 5, characterized in that: A pressurizing surface is formed on the reinforcing member to pressurize the circumference of the outer peripheral surface of the inflow pipe, Support walls protruding in the radial direction of the inflow pipe are formed on both sides of the pressurizing surface.

7. The joint assembly according to claim 4, characterized in that: The support surface includes: a first support surface, which is arranged opposite to the radial direction of the inflow pipe and inserted into and supported in the insertion groove; and a second support surface, which is arranged opposite to the axial direction of the inflow pipe and is tightly supported by the inner circumferential surface of the branch hole.

8. The joint assembly according to claim 7, characterized in that: The first supporting surface and the second supporting surface extend integrally.

9. The joint assembly according to claim 7, characterized in that: The first supporting surface and the second supporting surface are arranged at a distance from each other.

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