Swimming pool groove with improved binding force and water tightness

Abstract

The present invention relates to a groove for a swimming pool having improved binding force and water tightness. The purpose of the present invention is to provide a pipe expander in which a pipe expanding section having a coupling groove is integrally formed at one end of a groove, and a coupling protrusion is formed so as to protrude from the other end of the groove. Therefore, a plurality of grooves can be connected into a row through the embedding of the combination protruding parts and the combination grooves without a separate fixing device, and the combination force and the water tightness are improved. The present invention comprises: a main body part having a drainage channel having an upper opening therein; a tube expanding part integrally formed at one end of the body part and having a coupling groove of a predetermined depth along the inner circumference; and a coupling protrusion portion integrally formed at the other end of the body portion so as to protrude along the outer periphery, the coupling protrusion portion of the other groove being fitted into the coupling groove in the expanded tube portion while seating and supporting the other side of the other groove in the expanded tube portion of the one groove.

Description

Technical Field

[0001] The present invention relates to a swimming pool groove with improved bonding strength and water tightness, and relates to a swimming pool groove that can quickly realize the connection of a drainage groove installed on the upper edge of a swimming pool, and has improved bonding strength and water tightness, so that drainage and circulation can be smoothly completed through a drainage channel without water leakage. Background Art

[0002] Generally, a swimming pool is used to provide fresh water. It is not just a place for swimming. It can be used not only for playing in the water, but also for aerobic exercise, water aerobics, water walking for patient treatment, etc. It can be used for various public purposes by men, women, old and young through various projects.

[0003] The swimming pool comprises a water tank space portion which is opened at the top and filled with water inside, and a groove portion which is installed at the upper edge of the water tank space portion.

[0004] The groove portion is used to discharge water overflowing from the water tank space portion to the outside or to allow it to flow into the water tank space portion again through a certain purification process, and the groove is constructed after pouring finished concrete (mortar, etc.) along the upper edge of the water tank space portion, and a cover with a grating is placed and installed on the upper part of the groove, so that water can flow into the drainage channel of the groove.

[0005] However, the grooves used in existing swimming pools are made of metal materials, which will corrode due to the chemically treated swimming pool water. This corrosion causes the grooves to lift up from the finished concrete, making it impossible to achieve drainage and circulation.

[0006] In particular, the end portions of existing metal grooves are connected by simple overlap, and the overlapping portions are connected by components, so that not only water leaks through the overlapping portions, but also water flows into the finished concrete through the fastening portions of the components, thereby further accelerating the warping of the grooves.

[0007] (Prior art literature)

[0008] (Patent Document)

[0009] (Patent Document 1) Registered Patent Gazette Registration No. 10-2399479 (2022.05.13) Summary of the invention

[0010] Technical issues to be solved

[0011] The object of the present invention is to provide a swimming pool groove having an expanded pipe portion integrally formed with a coupling groove at one end of the groove, and a coupling protrusion protruding from the other end, so that a plurality of grooves can be connected in a row by the engagement of the coupling protrusion and the coupling groove without a separate fixing device, thereby improving the coupling force and water tightness.

[0012] The object of the present invention is to provide a swimming pool groove which improves the bonding strength and water tightness by double tight bonding by tightly accommodating and supporting the end portion of another groove in the expanded pipe portion of one groove and simultaneously fitting the bonding protrusion provided at the end portion of the other groove in the bonding groove of one groove.

[0013] Solutions to the problem

[0014] The present invention comprises: a main body portion, which has a drainage channel with an upper opening inside; an expansion portion, which is integrally formed at one end of the main body portion and has a coupling groove of a predetermined depth along the inner circumference; and a coupling protrusion portion, which is integrally protruded along the outer circumference at the other end of the main body portion, and while the other side of the other groove is placed and supported in the expansion portion of the groove on one side, the coupling protrusion of the other groove is embedded in the coupling groove in the expansion portion.

[0015] Effects of the Invention

[0016] In the present invention, an expanded tube portion having a coupling groove is integrally formed at one side end of the groove, and a coupling protrusion portion corresponding to the coupling groove is protrudingly formed at the other side end, thereby achieving smooth connection of multiple grooves through the engagement of the coupling protrusion portion and the coupling groove, thereby improving the watertightness and coupling between the grooves.

[0017] In particular, in the present invention, the combining protrusion provided at the end of the other side of the groove is embedded in the combining groove provided at the end of one side of the groove, so that not only is there no gap between the drainage channel of the groove on one side and the drainage channel of the other groove connected thereto, but the water tightness is enhanced by the embedding of the combining protrusion and the combining groove, thereby preventing water leakage.

[0018] In addition, in the present invention, the mutually engaged coupling protrusions and coupling grooves are formed into a "U"-shaped cross-sectional structure, so that the entire drainage channel arranged in adjacent grooves, that is, the bottom plate of the drainage channel and the side wall plates on both sides are tightly connected to each other without gaps, thereby achieving the effect of smoothly realizing the flow of water through the drainage channel without water leakage.

[0019] In the present invention, no separate fixing device or connecting device is required when connecting a plurality of grooves, thereby having the effects of improving operability and shortening operation time.

[0020] In the present invention, two adjacent grooves are connected by a double tight combination in which the other end surface of the other groove is contacted and embedded in the expanded tube portion of the groove, so that the watertightness between the grooves is further improved by the adhesion based on the surface contact and the bonding force based on the embedding, thereby achieving a firm connection effect.

[0021] In particular, in the present invention, the connection between the grooves is achieved by a dual combination of tight force and bonding force. Therefore, not only is it easy to achieve a straight line connection for multiple grooves, but even when loads occur in the up and down directions and the left and right directions, deformation and movement such as twisting and warping will not occur at the connection parts between the grooves, thereby having the effect of extending the service life.

[0022] Furthermore, in the present invention, water leakage is prevented by double tight bonding, so there is an effect that loss or damage of the finished concrete due to water leakage does not occur.

[0023] Furthermore, in the present invention, since the connection between the grooves is achieved by surface contact and fitting, there is an effect that maintenance of the grooves can be easily achieved.

[0024] The present invention has a simple structure in which a pipe expansion portion is integrally formed at one side end of a groove and a coupling protrusion is protrudingly formed at the other side end, thereby having the effect of enabling injection molding, thereby improving productivity and manufacturability.

[0025] In particular, as an example of a material capable of injection molding, the present invention can be made of synthetic resin, thereby not only having excellent durability, reducing production costs, and being easy to transport and install, but also not being corroded by water in a swimming pool, thereby having the effect of achieving a semi-permanent life.

[0026] The present invention has a drainage channel and a step at one end of the groove and forms an expanded pipe portion, so that when the grooves are connected, no step will be generated in the drainage channel, and no foreign matter will be stuck in the connection part, and the drainage operation through the drainage channel can be achieved quickly and smoothly.

[0027] The invention has a plurality of belt-shaped supporting protrusions, wing plates and supporting plates, so that not only will the phenomenon of pushing and moving of the grooves against the finished concrete not occur, but also the effect of smoothly adjusting the height and slope between the grooves can be achieved.

[0028] In particular, in the present invention, the strip-shaped support protrusion and the support plate are formed to protrude downward and have different heights from each other, and the strip-shaped support protrusion and the interlocking portion are formed to protrude downward and have different heights from each other, thereby effectively preventing the grooves from pushing against the poured finished concrete when the grooves are connected in a row, thereby achieving the effect of stable connection of the grooves.

[0029] In the present invention, when the connection step portion of the expanded pipe portion is also provided with a fastening protrusion provided with a fastening hole, the fasteners can achieve connection between the grooves while maintaining double tight connection without water leakage, thereby having many effects such as further improving the bonding force and water tightness between the grooves. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a diagram showing an example of a structure according to the present invention.

[0031] Figure 2 is another exemplary diagram showing a structure according to the present invention.

[0032] Figure 3 is a diagram showing an example of a lower structure according to the present invention.

[0033] Figure 4 It is a diagram showing an example of a cross-sectional structure of the present invention.

[0034] Figure 5 It is a diagram showing an example of the connection relationship of the present invention.

[0035] Figure 6 is an exemplary diagram showing a bonding state according to the present invention.

[0036] Figure 7 is another exemplary diagram showing a bonding state according to the present invention.

[0037] Figure 8 1 is a diagram showing an example of an installation state of the present invention.

[0038] (Explanation of Reference Numerals)

[0039] 10: Main body 10a: Through hole

[0040] 11: Main frame 11a: Bottom plate

[0041] 11b: Side wall panel 12: Mounting frame

[0042] 12a: First frame 12b: Second frame

[0043] 13: Drainage channel 14: Strip support protrusion

[0044] 15: Support plate 16: Wing plate

[0045] 20: Expanded tube 21: Joint groove

[0046] 21a: Auxiliary coupling groove 22: Connecting step portion

[0047] 22a: first connection base 22b: second connection base

[0048] 23: Fitting portion 24: Fastening protrusion

[0049] 24a: Fastening hole 30: Connecting protrusion

[0050] 30a: auxiliary protrusion 40: fastener

[0051] 100: Groove 110: Cover

[0052] 200: Swimming pool 210: Swimming pool upper surface

[0053] 220: Finished concrete DETAILED DESCRIPTION

[0054] Figure 1 is an exemplary diagram showing a structure according to the present invention, Figure 2 is another exemplary diagram showing a structure according to the present invention, Figure 3 is an exemplary diagram showing a lower structure according to the present invention, Figure 4 is an exemplary diagram showing a cross-sectional structure of the present invention, Figure 5 is an example diagram showing the combination relationship of the present invention, Figure 6 is an exemplary diagram showing a combined state according to the present invention, Figure 7 is another exemplary diagram showing a combined state according to the present invention, Figure 8 1 is a diagram showing an example of an installation state of the present invention.

[0055] The present invention relates to a groove 100 for a swimming pool, wherein an expanded pipe portion is integrally formed at one end of the groove, a coupling protrusion portion is protruding along the outer circumference at the other end, and a coupling groove is integrally formed along the inner circumference of the expanded pipe portion, the coupling groove having a predetermined depth and the coupling protrusion portion of another adjacent groove is embedded therein.

[0056] That is, the swimming pool groove 100 according to the present invention includes: a main body 10, which has a drainage channel with an upper opening inside; an expanded pipe portion 20, which is integrally formed at one end of the main body 10 and has a coupling groove 21 of a predetermined depth along the inner circumference; and a coupling protrusion 30, which is integrally protruded along the outer circumference at the other end of the main body.

[0057] The swimming pool gutter 100 according to the present invention has a simple structure that can be injection molded. That is, as an example of a material that can be injection molded, the swimming pool gutter 100 according to the present invention is preferably made of synthetic resin.

[0058] like Figures 1 to 5As shown, the main body 10 includes: a main body frame 11 having a predetermined length and having a drainage channel 13; and a mounting frame 12 integrally formed along both upper ends of the main body frame.

[0059] The main body frame 11 has a U-shaped cross-sectional structure and is formed with a predetermined length and has a drainage channel 13 with an upper opening therein.

[0060] In addition, one or more belt-shaped supporting protrusions 14 are protrudingly formed along the outer circumference of the main body frame 11 .

[0061] The strip-shaped support protrusion 14 has the function of strengthening the rigidity of the main frame 11, while preventing the swimming pool groove 100 from being pushed in the length direction, and at the same time has the function of improving the adhesion between the groove 100 and the upper ground of the swimming pool, that is, improving the adhesion between the groove 100 and the finished concrete 220 poured on the upper ground of the swimming pool.

[0062] In addition, the main body frame 11 has one or more support plates 15 protruding downwardly formed on the outer side surface of the bottom plate 11 a.

[0063] The support plates 15 are formed in a plurality of protruding sections with a predetermined length and at predetermined intervals along the length direction of the main frame 11, so as to be inserted into the finished concrete 220 poured around the groove, thereby preventing the main frame 11 from moving in the length direction and the left-right direction, and at the same time having the function of improving the bonding strength between the main frame 11 and the finished concrete 220.

[0064] Furthermore, when the support plate 15 is inserted into the finished concrete 220 poured around the groove, it produces an effect of clamping the finished concrete 220, thereby maximally preventing cracking when the finished concrete 220 subsequently shrinks during drying and hardening.

[0065] Preferably, the support plates 15 as described above are formed in pairs of two, and a plurality of pairs of support plates 15 are formed in a manner of protruding downward at predetermined intervals.

[0066] In addition, preferably, the support plate 15 is formed in a manner of protruding further downward than the belt-shaped support protrusion 14 .

[0067] That is, when the strip-shaped support protrusion 14 is arranged on the main body frame 11 in a manner of protruding downward more than the main body frame 11, the support plate 15 is inserted into the finished concrete 220 located between the strip-shaped support protrusion 14 on one side and the other strip-shaped support protrusion 14 adjacent thereto, so that the amount of finished concrete used to bury the support plate 15 is limited, thereby, there may be a phenomenon in which sufficient supporting force cannot be ensured to prevent the main body frame 11 from moving in the left-right direction.

[0068] Therefore, in the present invention, the support plate 15 is formed in a manner that protrudes downward more than the strip-shaped support protrusion 14, thereby maximizing the function of the support plate 15 to prevent the main body frame 11 from moving in the left and right directions, and the function of the strip-shaped support protrusion 14 to strengthen the rigidity of the main body frame 11 and prevent movement in the length direction.

[0069] like Figures 1 to 3 As shown, the mounting frame 12 is used to place and install the cover 110 with a grille, and has an "L"-shaped cross-sectional structure including a first frame 12a and a second frame 12b, and is integrally formed on both sides of the upper end of the main body frame 11 in a mutually symmetrical manner, wherein the first frame 12a is integrally connected to the main body frame 11, and the second frame 12b has a structure bent at the end of the first frame 12a and is integrally formed along the upper side direction.

[0070] In addition, a plurality of wing plates 16 are formed to protrude downward from the installation frame 12. In addition, the wing plates 16 are formed in a manner of protruding downward from the end of the first frame 12a of the installation frame.

[0071] At this time, the wing plate 16 is spaced a predetermined distance from the main frame 11 , that is, a space is provided between the main frame 11 and the wing plate 16 , so that the wing plate 16 is protruded and formed in a manner that the finished concrete 220 can be sufficiently inserted / filled.

[0072] The wing plates 16 are formed to protrude in a plurality at predetermined intervals so as to have a predetermined length in the longitudinal direction of the installation frame 12. The wing plates 16 formed in this way are inserted into the finished concrete 220 poured around the groove when the groove is installed, thereby preventing the installation frame 12 from moving in the longitudinal direction and the left-right direction, and at the same time, have the function of improving the bonding force between the installation frame 12 and the finished concrete 220.

[0073] Furthermore, when the wing plate 16 is inserted into the poured finished concrete 220, it produces an effect of clamping the finished concrete 220, thereby minimizing cracking when the concrete subsequently shrinks during drying and hardening.

[0074] The wing panels 16 described above may be formed by a plurality of wing panels 16 arranged in a row and protruding downward at predetermined intervals, or may be formed by a plurality of wing panels 16 arranged in two or more rows and protruding downward at predetermined intervals.

[0075] 22 In addition, preferably, the wing plate 16 is formed to protrude in a manner staggered with the support plate 15 relative to the length direction of the groove 100. That is, when viewed from the side, the wing plate 16 provided on the mounting frame and the support plate 15 provided on the main body frame are preferably formed to protrude downward in a manner staggered with each other. As described above, when the wing plate 16 and the support plate 15 are formed to protrude downward from the mounting frame 12 and the main body frame 11 in a manner staggered with each other, the effect of preventing the groove from moving in the left-right direction without causing a distortion phenomenon is improved.

[0076] In addition, the pair of mounting frames 12 may be formed in such a manner that the wing plate 16 is provided on both mounting frames 12 , or may be formed in such a manner that the wing plate 16 is provided on only one mounting frame.

[0077] The main body 10 constructed as described above is formed of a main body frame 11 having a drain channel 13 and a pair of mounting frames 12 connected thereto, and is formed in a manner that both sides have mutually symmetrical structures.

[0078] The expansion part 20 is used to connect a plurality of grooves 100 into a row. Figures 1 to 5 As shown, a step is provided at one end of the groove, that is, at one end of the main body 10 , and is integrally protruded and formed along the length direction of the main body 10 .

[0079] That is, the expansion tube portion 20 includes: a connecting step portion 22, which is formed at one end of the main body portion 10 in a stepped manner with the main body portion 10; and a fitting portion 23, which is formed between the main body portion 10 and the connecting step portion 22 and has a coupling groove 21 of a predetermined depth.

[0080] The connecting step portion 22 includes: a first connecting base 22a, which is formed in a "U" shape so as to have a step relative to the drain channel 13 arranged on the main frame 11; and a second connecting base 22b, which is formed on the upper ends of both sides of the first connecting base 22a so as to have a step relative to the first frame 12a of the mounting frame.

[0081] At this time, if Figure 4 As shown, the first connection base 22a has a step d1 of the thickness t1 of the main body frame, and the second connection base 22b has a step d2 of the first frame thickness t2 of the mounting frame.

[0082] That is, the main body frame 10 of another groove and the first frame 12a of the mounting frame are respectively placed and supported on the first connecting base 22a and the second connecting base 22b of one side groove, so that the drainage channels 13 arranged in the two connected grooves are connected to each other along the length direction without steps.

[0083] At this time, when the main body frame 11 is formed with various thicknesses, that is, the thicknesses of the main body frame bottom plate 11a forming the drain channel 13 and a pair of side wall plates 11b connected thereto are different from each other, the first connecting base 22a has a step relative to the drain channel 13 and is formed integrally so that the drain channels 13 arranged in the two connected grooves are connected to each other in the length direction without steps.

[0084] like Figures 1 to 4 As shown, the engaging portion 23 integrally connects the main body 10 and the connecting step portion 22 , and forms a coupling groove 21 in which the coupling protrusion 30 is embedded and engaged.

[0085] The coupling groove 21 has a U-shaped structure opened upward so as to be disposed at one end of the main body 10 and formed in the fitting portion 23 .

[0086] At this time, the engaging portion 23 is not separately molded / manufactured to be combined with the connecting step portion 22 and the main body 10 , but is formed integrally with the connecting step portion 22 and the main body 10 so as to have a coupling groove 21 between the main body 10 and the connecting step portion 22 .

[0087] In addition, preferably, the engaging portion 23 is formed to protrude downward so as to have the same protruding height as the wing plate 16 provided on the body portion. As described above, when the engaging portion 23 has the coupling groove 21 and is formed to protrude downward, the engaging portion 23 is inserted into the finished concrete 220 when the groove is installed, thereby further improving the supporting force of the groove connection portion.

[0088] The coupling protrusion 30 is engaged with the coupling groove 21 of the expansion part of the adjacent groove, and is formed to protrude downward along the outer circumference at the other end of the main body so as to have a predetermined length. That is, the coupling protrusion 30 is formed to protrude integrally at the other end of the main body so as to have a "U"-shaped structure.

[0089] like Figure 5 and Figure 6 As shown, in the swimming pool groove according to the present invention constructed as described above, the coupling protrusion of the other groove is fitted into the coupling groove of the expanded pipe portion of one groove to be connected in a row.

[0090] That is, in the swimming pool groove according to the present invention, by repeatedly performing the operations of placing and supporting the other side of another groove on the connecting step portion of the expanded pipe portion provided in one groove and fitting the coupling protrusion portion in the coupling groove of the expanded pipe portion provided in one groove, a plurality of grooves are connected in a row, thereby forming a connected drainage channel.

[0091] At this time, if Figure 4As shown, the coupling groove 21 is formed into a tapered groove structure whose width gradually narrows toward the downward direction, and the coupling protrusion 30 is formed into a structure tightly fitted into the coupling groove 21 of the tapered groove structure, thereby easily achieving the coupling of the coupling groove 21 and the coupling protrusion 30, and maintaining water tightness by mutual fitting (tight fitting).

[0092] As described above, in the groove 100 according to the present invention, the other side of another groove having a coupling protrusion is arranged and supported on the connecting step portion of the expanded pipe portion provided on one side of the groove so that the coupling protrusion is embedded in the coupling groove of the expanded pipe portion. Therefore, the water leakage between adjacent grooves is prevented in two stages by the embedding of the coupling groove and the coupling protrusion and the surface contact force between the outer surface of the other side of the groove arranged and supported and the connecting step portion.

[0093] That is, in the grooves 100 according to the present invention, when connected in a row, a double watertight structure is formed at the connection parts between the grooves, thereby blocking the water leakage phenomenon.

[0094] In addition, if Figures 1 to 3 , Figure 5 and Figure 6 As shown, in the present invention, the expanded tube portion 20 of one side groove is combined with the other side of the other groove (the other side with the coupling protrusion) by means of fasteners 40 such as screws, thereby increasing the coupling force between the coupling groove 21 of the expanded tube portion and the coupling protrusion 30 and the surface contact force with the other side of the groove of the connecting step portion placed and supported on the expanded tube portion, thereby further improving the water tightness.

[0095] That is, in the present invention, a fastening protrusion 24 having a fastening hole 24a is formed on the connection step portion 22 of the expanded tube portion 20 to protrude downward, and the other side of another groove on the connection step portion 22 of the expanded tube portion, that is, a through hole 10a connected to the fastening hole 24a is formed on the other side of the groove having the coupling protrusion 30, so that the other side of the other groove is arranged and supported on the connection step portion of the expanded tube portion provided with the groove on one side, and a fastener 40 such as a screw is fastened to the through hole and the fastening hole, so that the two adjacent grooves are firmly connected by the double connection formed by the engagement of the coupling groove and the coupling protrusion and the fastening connection of the fastener 40.

[0096] In addition, if Figure 7 As shown, in the present invention, an auxiliary coupling groove 21a separated from the coupling groove 21 is formed on the connecting step portion 22 of one side groove, and an auxiliary protrusion portion 30a separated from the coupling protrusion portion 30 is protrudingly formed on the other side of the other groove, thereby forming a double fit formed by the coupling protrusion portion 30 and the auxiliary coupling groove 21a and the auxiliary protrusion portion 30a and the coupling groove 21.

[0097] As described above, when double fitting is formed between the grooves 100, the water tightness of the connection parts between the grooves is further improved, thereby achieving drainage through the drainage channel without water leakage.

[0098] In particular, the auxiliary combining groove 21a and the combining groove 21 and the combining protrusion 30 and the auxiliary protrusion 30a are formed in a manner of being spaced apart from each other, and a portion of the connecting step portion between the auxiliary combining groove 21a and the combining groove 21 and a portion of the other side of the groove between the combining protrusion 30 and the auxiliary protrusion 30a are closely arranged and supported with each other, thereby forming a double interlocking and double watertight structure, thereby further improving the watertightness.

[0099] Furthermore, the swimming pool gutter 100 according to the present invention constructed as described above is preferably made of synthetic resin materials including fiber reinforced plastics, engineering plastics, etc., but may also be made of materials such as stainless steel or rubber as an example of corrosion-resistant materials.

[0100] In addition, if Figure 8 As shown, the swimming pool ditch 100 according to the present invention is constructed after pouring finished concrete along the upper edge of the swimming pool ditch space 220, and a cover 110 with a grating is placed and installed on the upper part of the ditch to enable water to flow into the drainage channel of the ditch.

[0101] The present invention is not limited to the above-mentioned specific preferred embodiments. Of course, those skilled in the art can implement various modifications without departing from the spirit of the present invention as claimed in the claims, and these modifications fall within the scope of the claims.

[0102] Furthermore, the terms described in the present invention are intended to distinguish one constituent element from another constituent element and to help understanding of the present invention, and thus the constituent elements of the present invention are not limited by the terms described.

Claims

1. A groove for a swimming pool, characterized in that: include: A main body portion, wherein the main body portion has a drainage channel with an upper opening inside; an expanded tube portion, the expanded tube portion being integrally formed at one end of the main body portion and having a coupling groove of a predetermined depth along the inner circumference; and A coupling protrusion is formed integrally protruding along the outer circumference at the other end of the main body. While the other side of the other groove is placed and supported in the expanded tube portion of one groove, the coupling protrusion of the other groove is engaged with the coupling groove in the expanded tube portion.

2. The swimming pool groove according to claim 1, characterized in that: The main body includes: ontology framework; and A mounting frame is integrally formed along the upper ends of both sides of the body frame, The main body frame has a U-shaped cross-sectional structure and is formed with a predetermined length and has a drainage channel with an opening on the upper side of the interior. The mounting frame has an L-shaped cross-sectional structure including a first frame and a second frame, wherein the first frame is integrally connected to the body frame, and the second frame has a structure bent at a distal end of the first frame and is integrally formed along an upper side direction.

3. The swimming pool groove according to claim 2, characterized in that: The ontology framework includes: One or more strip-shaped support protrusions, wherein the one or more strip-shaped support protrusions are formed to protrude along the outer circumference of the main body frame; and One or more support plates, wherein the one or more support plates are formed protrudingly on the outer side of the bottom plate, The mounting frame is formed with one or more wing plates protruding from the first frame. The strip-shaped support protrusion and the support plate are formed to protrude downward and have different heights from each other. The wing plates and the support plates are formed to protrude in a staggered manner relative to a length direction of the groove.

4. The swimming pool groove according to claim 1, characterized in that: The pipe expansion part comprises: a connecting step portion, the connecting step portion being formed at one end of the main body portion so as to have a step with the main body portion; and The engaging portion is formed between the main body and the connecting step portion and has a coupling groove, wherein the coupling groove has a predetermined depth and is a "U"-shaped structure. The connecting step portion comprises: A first connection base portion, the first connection base portion is formed in a "U" shape so as to have a step relative to the drainage channel of the main body portion; and a second connection base, the second connection base being formed at both upper ends of the first connection base so as to have a step relative to the mounting frame, The coupling protrusion is integrally formed on the other end of the main body and has a U-shaped structure so as to be fitted into the coupling groove.

5. The swimming pool groove according to claim 1 or claim 4, characterized in that: The coupling groove is formed into a tapered groove structure whose width gradually narrows toward the lower side, and the coupling protrusion is formed into a structure tightly fitted into the coupling groove of the tapered groove structure.

6. The swimming pool groove according to claim 4, characterized in that: A fastening protrusion having a fastening hole is formed on the connection step portion of the expanded tube portion and protrudes downward, and a through hole communicating with the fastening hole is formed on the other side of another groove arranged and supported on the connection step portion of the expanded tube portion. The fastener is fastened through the through hole and the fastening hole, so that two adjacent grooves are connected by double bonding formed by the engagement of the coupling groove and the coupling protrusion and the fastening bonding of the fastener.

7. The swimming pool groove according to claim 4, characterized in that: An auxiliary connecting groove separated from the connecting groove is also formed on the connecting step portion of one groove, and an auxiliary protrusion separated from the connecting protrusion portion is also protrudingly formed on the other side of the other groove, so that the two grooves are connected by double interlocking formed by the connecting protrusion portion and the auxiliary connecting groove, and the auxiliary protrusion portion and the connecting groove.

8. The swimming pool groove according to any one of claims 1 to 4, 6 to 7, characterized in that: The groove is made of synthetic resin material.

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