JP2017125585A - Through hole decorative cover, and method for installing air conditioning system piping - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a through hole decorative cover which can facilitate piping work and improve aesthetics around a through hole, and a method for installing piping using the through hole decorative cover.SOLUTION: A through hole decorative cover includes an insertion part 30 inserted into a through sleeve, a cover part 20 covering an end face of the through sleeve, and a fixation part 10 which protrudes from the cover part and is for fixing a piping by a fixing belt being wound around itself.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a through-hole decorative cover and a pipe installation method using the through-hole decorative cover, for example, a technique for installing a pipe of an air conditioner.

  When the air conditioning system, so-called air conditioner, is cooled, the evaporator (aluminum fin) inside the indoor unit becomes low temperature and water droplets adhere. This water is received by a tray called a drain pan and drained outside through a hose called a drain pipe. Furthermore, air conditioners use refrigerant such as chlorofluorocarbon (CFC) and hydrofluorocarbon (HFC) to move back and forth between indoor units and outdoor units. It is necessary to pipe between the machines. In addition, a control cable or the like must be connected so that the outdoor unit operates in conjunction with the operation of the indoor unit. Thus, when installing an air conditioner, in order to connect the outdoor unit and indoor unit which comprise an air-conditioning system, generally piping work which penetrates a wall is performed.

  FIG. 5A shows conventional outdoor piping of an indoor unit and an outdoor unit in an air conditioner. The air conditioner indoor unit 150 and the air conditioner outdoor unit 160 are connected to each other by a pipe 140 in which a drain pipe 110, a refrigerant pipe 120, a control cable, and the like are wound around a protective tape 130. The pipe 140 is led indoors from the outside through a through hole 200 formed in a wall, and a cylindrical jig called a through sleeve (wall sleeve) 100 is installed in the through hole 200. Then, a decorative cover 170 that covers the end of the through-hole 200 is attached to each of the indoor and outdoor openings, and a gap 95 formed between the decorative cover 170 and the pipe 140 is filled with a clay-like putty 90 (FIG. 5A). FIG. 5B).

JP 2008-291899 A

  FIG. 6A shows a wall on which conventional piping work is performed in an air conditioner. A through sleeve 100 is installed in the through hole 200 formed in the wall 180, and a drain pipe 110, a refrigerant pipe 120, and the like are passed through the through sleeve 100. Here, the liquid pipe and the gas pipe are drawn together as one pipe. A decorative cover 170 is attached to both ends of the penetrating sleeve 100 in order to improve the appearance. Since the refrigerant pipe 120 needs to be kept warm, a heat insulating material made of foamed polyethylene or the like is wound, and all the pipes including the drain pipe 110 are collected together with a protective tape 130 called a canvas tape to form a pipe 140. . At this time, in order to prevent rainwater, dust, insects such as mosquitoes and the like from entering through the gap 95 between the opening of the decorative cover 170 and the pipe 140, the gap 95 is filled with a sealing filler, for example, putty 90.

  However, the conventional method of filling the gap 95 with the putty 90 as shown in FIG. 6B showing the vicinity of the through-hole 200 in the case of performing conventional air conditioning piping work greatly impairs the beauty. Further, since the surface of the putty 90 is sticky, there is a problem in that dust or the like adheres and becomes black and dirty. Furthermore, since it is exposed to wind and rain and sunlight outdoors, it may deteriorate several years after the oil content of the putty 90 is removed, and the sealing of the gap 95 may be broken. In order to make up for the above-mentioned drawbacks, there is a construction method in which the part buried with the putty 90 is further covered with another decorative cover, but the increase in the number of parts is unavoidable, and the piping work itself becomes troublesome (for example, patent document) 1).

  In view of such circumstances, the present invention intends to provide a through-hole decorative cover that facilitates piping work and improves the aesthetic appearance of the vicinity of the through-hole 200, and an air-conditioning system piping method using the same.

  (1) The present invention is a through-hole decorative cover that covers an end of a through-hole that is opened in a wall for allowing piping to pass therethrough, and has a flange-shaped and annular cover portion that expands in the radial direction, and fixes the piping In order to fix the entire through hole decorative cover by inserting into the through hole and a cylindrical fixing portion provided to protrude in the axial direction of the cover portion continuously with the opening of the cover portion A through hole decorative cover comprising: a cylindrical insertion portion provided to protrude in a direction opposite to the fixing portion in the axial direction continuously with the opening portion of the cover portion. .

  According to the invention described in (1) above, the gap formed between the through-hole decorative cover that covers the end of the through-hole and the pipe that connects the indoor unit and the outdoor unit of the air conditioner continues from the flange-shaped cover unit. It is possible to fix and seal by wrapping a protective tape so as to straddle the fixed part provided and the tube extending from it, and the sealing filler such as putty is exposed and the aesthetic appearance is impaired In addition, the piping work itself can be easily performed.

  (2) The present invention provides the through-hole decorative cover according to (1), wherein the fixing portion has a length in the axial direction of 40 mm or more.

  According to the invention described in (2) above, the width of the protective tape used in the piping work is often 50 mm or more. Therefore, when winding the fixed portion and the pipe extending from the fixed portion together, the width sufficient for the fixed portion The length for winding the tape can be secured and can be securely fixed.

  (3) The present invention provides the through-hole decorative cover described in (1) or (2) above, wherein at least one circumferential notch is provided on the outer peripheral surface of the fixed portion. .

  According to the invention described in the above (3), since it becomes easy to cut the fixing portion using the notch as a guide, the fixing portion has an optimal length according to the flexibility of the pipe to be constructed and the construction place. The through-hole decorative cover can be easily and neatly created on site. Further, since there is a notch in the circumferential shape, an anti-slip effect can be expected when a drain pipe or a refrigerant pipe wrapped with a heat insulating material is bundled and fixed to a fixing portion with a protective tape.

  (4) The present invention is characterized in that the insertion portion side of the cover portion is provided with a concave portion for filling with a sealing filler that closes a gap generated between the cover portion and the wall. A through-hole decorative cover according to any one of the above (1) to (3) is provided.

  According to the invention described in the above (4), the seal filled in the recess is formed even in a slight gap generated between the penetration sleeve and the insertion portion provided in the through-hole decorative cover inserted into the penetration sleeve. It can be sealed with a filler, and the sealing filler is hidden from the outside by the cover part, so that it does not impair the aesthetics and improves durability. Invasion of dust, insects, etc. can be prevented.

  (5) The present invention provides the through-hole decorative cover described in (4) above, wherein the inner peripheral wall of the recess is constituted by the outer peripheral surface of the insertion portion.

  According to the invention described in (5) above, when the sealing filler is filled in the recess and the insertion portion is inserted into the through sleeve, one of the escape directions of the sealing filler is the insertion portion outer peripheral surface and the insertion portion. This is in the direction of the gap with the inner wall surface of the penetrating sleeve into which is inserted, and there is an effect that a seal corresponding to the axial length of the insertion portion can be obtained at the maximum.

  (6) The present invention provides the through-hole decorative cover according to (4) or (5), wherein the recess has a depth in the axial direction of 5 mm or more.

  According to the invention described in (6) above, it is possible to fill the concave portion with an amount of a sealing filler necessary for filling a gap generated between the end portion of the insertion portion and the through sleeve.

  (7) The present invention is described in any one of (4) to (6) above, wherein the distance between the inner peripheral wall and the outer peripheral wall is 10 mm or more in the recess. A through-hole decorative cover is provided.

  According to the invention described in the above (7), it is possible to fill the concave portion with an amount of sealing filler necessary for filling a gap generated between the end portion of the insertion portion and the through sleeve.

  (8) The present invention provides the through-hole decorative cover according to any one of (1) to (7), wherein the fixing portion is cylindrical.

  According to the invention described in (8) above, when the drain pipe or the refrigerant pipe is wound with the protective tape and fixed to the through-hole decorative cover, the protective tape is evenly distributed in the circumferential direction of the cylindrical fixing portion. Since it is possible to wrap and fix with force, it is possible to reliably seal the gap formed between the decorative cover for penetration and the drain pipe or refrigerant pipe

  (9) The present invention provides the through-hole decorative cover described in any one of (1) to (8) above, wherein the insertion portion is cylindrical.

  According to the invention described in (9) above, a circular insertion portion whose outer periphery is perpendicular to the axis of the cover portion is realized in accordance with the standard of the cylindrical through sleeve installed in the through hole formed in the wall. And the gap formed between the penetration sleeve and the insertion portion can be made uniform and minimal.

  (10) The present invention is a method of installing a pipe of an air conditioning system for a through hole opened in a wall for passing a pipe, and a gap generated between the through hole decorative cover having a flange-shaped cover portion and the wall Filling the recess provided in the cover part with a sealing filler, inserting a cylindrical insertion part protruding from the wall side of the cover part into the through hole, and Fixing the pipe for the air conditioning system inserted into the cover part, the insertion part, and the fixing part to a cylindrical fixing part protruding from the cover part to the opposite side of the wall. Provide a method for installing air conditioning system piping.

  According to the installation method of the air conditioning system pipe described in (10) above, the piping work is facilitated, and an excellent effect of improving the aesthetic appearance in the vicinity of the through hole is achieved as compared with the conventional construction method.

  According to the through hole decorative cover and the air conditioning system piping installation method according to the above (1) to (10) of the present invention, the piping work is facilitated and the aesthetics in the vicinity of the through hole are improved more than the conventional construction method. Has an effect.

It is a perspective view of the through-hole decorative cover which concerns on embodiment of this invention. (A) It is a front view of a through-hole decorative cover. (B) It is a top view of a through-hole decorative cover. (C) It is a bottom view of a through-hole decorative cover. It is AA arrow sectional drawing of a through-hole decorative cover. (A) It is sectional drawing of the wall which performed the piping construction for air conditioning using the through-hole decorative cover. (B) It is a front view of the through-hole vicinity at the time of using a through-hole decorative cover. (A) It is the conceptual diagram which looked at the conventional piping of the indoor unit and outdoor unit in an air conditioner from the outdoors. (B) It is the conceptual diagram which looked at the conventional piping of the indoor unit and outdoor unit in an air conditioner from the room. (A) It is sectional drawing of the wall which performed the conventional piping construction in an air conditioner. (B) It is a front view of the through-hole vicinity at the time of performing the piping construction for the conventional air conditioning.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 4 are examples of embodiments for carrying out the invention, and in the drawings, the same reference numerals denote the same components. In addition, a part of the configuration is omitted as appropriate in each drawing to simplify the drawing. The size, shape, thickness, etc. of the members are exaggerated as appropriate.

  FIG. 1 is a through-hole decorative cover 1 according to an embodiment of the present invention. The through-hole decorative cover 1 is a through-hole decorative cover 1 that covers an end portion of the through-hole 200 that is opened in the wall so as to allow piping to pass therethrough, and includes a cover portion 20, a fixing portion 10, and an insertion portion 30. . It is desirable that the fixed portion 10 and the insertion portion 30 are formed on the same axis. The through-hole decorative cover 1 is integrally formed of synthetic resin such as polyethylene or hard plastic. The through-hole decorative cover 1 may be made of a combination of metal or a synthetic resin and metal.

  The cover portion 20 has a flange shape extending in the radial direction so as to cover the end portion of the through hole 200, and has an annular shape by having an opening at the center thereof.

  The insertion portion 30 is provided on the insertion portion side surface 21 </ b> A of the cover portion 20, and the fixing portion 10 is provided on the fixing portion side surface 21 </ b> B of the cover portion 20. The outer edge in the radial direction of the cover portion 20 having a flange shape has a larger diameter than the fixed portion and the insertion portion described later.

  The fixed portion 10 is cylindrical and is provided so as to protrude in the axial direction of the cover portion 20 continuously with the opening portion of the cover portion 20. The fixing portion 10 has an axial length of the cover portion 20 of 40 mm or more. As will be described later, the protective tape 130 is wound around the fixing portion 10 so that the gap 125 between the pipe 140 and the through-hole decorative cover 1 is formed. It is used for sealing and fixing the piping 140. The fixing part 10 is preferably cylindrical. When the drain pipe 110 or the refrigerant pipe 120 is wound with the protective tape 130 and fixed to the through-hole decorative cover 1, the protective tape 130 is wound around and fixed to the circumferential direction of the cylindrical fixing portion 10 with a uniform force. This is because the gap 125 formed between the penetration decorative cover 1 and the drain pipe 110 or the refrigerant pipe 120 can be reliably sealed.

  At least one circumferential notch 40 is provided on the outer peripheral surface of the fixed portion 10 as a cut line in the circumferential direction. Since it becomes easy to cut the fixing portion 10 using the notch 40 as a guide, the through-hole decorative cover 1 having the fixing portion 10 having the optimal length according to the flexibility of the pipe to be constructed and the construction place can be easily obtained. In addition, it can be neatly created on site. In addition, since there are notches 40 in the circumferential shape, the anti-slip effect is also expected when the drain pipe 110, the refrigerant pipe 120 wrapped with a heat insulating material, and the like are bundled and fixed to the fixing portion 110 with the protective tape 130. it can.

  The insertion part 30 has a cylindrical shape, and is provided so as to protrude in the direction opposite to the fixed part 10 in the axial direction of the cover part 20 continuously with the opening part of the cover part 20. The insertion portion 30 is used to insert the through hole 200 and fix the entire through hole decorative cover 1. The insertion part 30 is preferably cylindrical. In accordance with the standard of the cylindrical through sleeve 100 installed in the through hole 200 formed in the wall, the insertion portion 30 having a circular cross section outer periphery perpendicular to the axis of the cover portion 20 can be realized. It is possible to make the gap 115 generated during 30 uniform and minimal.

  FIG. 1A shows the through-hole decorative cover 1 as viewed from the fixed portion 10 side. A plurality of screw hole recesses 50 are provided on the outer peripheral edge of the cover portion 20 in the radial direction. If necessary, the cover portion 20 is fixed to the wall 180 (see FIG. 4) with screws through the screw hole recesses 50. be able to. A pipe 140 composed of a drain pipe 110 or the like connects the indoor unit 150 and the outdoor unit 160 through the pipe hole 60.

  FIG. 1B shows the through-hole decorative cover 1 viewed from the insertion portion 30 side. A concave portion 70 having a depth of 5 mm or more in the axial direction of the cover portion 20 is provided on the insertion portion side surface 21A of the cover portion 20 in a circumferential shape. The wall 71 on the inner peripheral side of the recess 70 is constituted by the outer peripheral surface of the insertion part 30. However, this invention is not limited to this, You may form the recessed part 70 in the place away from the insertion part 30 in radial direction. The concave portion 70 is used for filling a sealing filler that closes a gap 115 formed between the cover portion 20 and the wall 180. In the recess 70, the distance W between the inner peripheral wall 71 and the outer peripheral wall 72 in a cross section perpendicular to the axis of the cover portion 20 is 10 mm or more. A caulking (sealing) material such as putty 90 or silicone can be considered as the sealing filler.

  The convex portion 80 in FIG. 1A corresponds to the back side of the concave portion 70.

  FIG. 2A is a front view of the through-hole decorative cover 1. Since the through-hole decorative cover 1 is formed symmetrically, the front view, the rear view, the right side view, and the left side view are the same. In FIG. 2A, the outer peripheral diameter of the cross section perpendicular to the axis of the cover portion 20 of the fixing portion 10 is slightly smaller than the outer peripheral diameter of the insertion portion 30, but conversely, the outer peripheral diameter of the fixing portion 10 is the outer periphery of the insertion portion 30. It may be larger than the diameter or the same.

  FIG. 2B is a top view of the through-hole decorative cover 1. The cover portion 20 is provided with a plurality of screw hole recesses 50. If necessary, the through hole decorative cover 1 is fixed to the wall with screws through the screw hole recesses 50.

  FIG. 2C is a bottom view of the through-hole decorative cover 1. A recess 70 is provided along the outer periphery of the insertion part 30. Since the outer diameter of the insertion portion 30 is designed to be slightly smaller than the inner diameter of the penetration sleeve 100, the gap 115 between the insertion portion 30 and the penetration sleeve 100 is small, and the outer periphery of the insertion portion 30 is pushed by pushing the insertion portion 30. The gaps 115 between the insertion part 30 and the penetration sleeve 100 and the gaps 116 between the cover part 20 and the wall 180 are effectively filled with the putty 90 or caulking material of the recess 70 provided along (See FIG. 4).

  FIG. 3 is a cross-sectional view of the through-hole decorative cover 1 in FIG. The inner diameter of the insertion part 30 is slightly larger than the inner diameter of the fixing part 10, and the outer diameter of the insertion part 30 is slightly larger than the outer diameter of the fixing part 10. However, the inner diameter and the outer diameter of the insertion part 30 and the fixing part 10 may be arbitrary as long as the drain pipe 110 or the like can be inserted. The putty 90 or the like is filled in the concave portion 70 and fills the gap 115 generated between the insertion portion 30 and the through sleeve 100.

  Next, the usage method in the piping construction of the through-hole decorative cover 1 according to the above-described embodiment will be described with reference to FIG.

  First, the through sleeve 100 is installed in the through hole 200, and the drain pipe 110, the refrigerant pipe 120, and the like, which are pipes for the air conditioning system, are led to the outside from the air conditioner indoor unit 150 through the through sleeve 100. Here, the liquid pipe and the gas pipe are drawn together as one pipe. At this time, the drain pipe 110 and the refrigerant pipe 120 are also passed through the pipe hole 60 (see FIG. 1) of the through hole decorative cover 1. That is, the drain pipe 110, the refrigerant pipe 120, etc. are inserted into the openings of the fixing part 10, the cover part 20, and the insertion part 30 constituting the through-hole decorative cover 1. Specific examples of the refrigerant pipe 120 include a liquid pipe (not shown) and a gas pipe (not shown). After appropriately processing these lengths, the pipe is connected to an outdoor unit, evacuated, airtight test, Perform refrigerant gas leak inspection, etc. Then, the recess 70 provided on the wall side of the through hole decorative cover 1 is filled with the putty 90, and the insertion portion 30 is inserted into the through sleeve 100. A gap 115 generated between the penetration sleeve 100 and the insertion portion 30 inserted into the penetration sleeve 100 can be sealed with a sealing filler such as a putty 90 filled in the recess 70. Since the sealing filler is hidden from the outside by the cover portion 20, the durability is improved without impairing the aesthetic appearance, and the gap formed between the through-hole decorative cover 1 and the wall 180 is closed. It has the effect of preventing rainwater, dust, insects, etc. from entering the room.

  If necessary, the through hole decorative cover 1 is fixed to the wall 180 with a stainless steel screw or the like through the screw hole recess 50.

  Heat insulation is wound around each of the liquid pipe and gas pipe, and the drain pipe 110 is guided to the drain hole etc., and then the drain pipe 110, the refrigerant pipe 120, the control cable, etc. are used for protecting the adhesive or non-adhesive called canvas tape. Wind and fix with tape 130. A gap 125 formed between the through-hole decorative cover 1 covering the end of the through-hole 200 and the pipe connecting the indoor unit 150 and the outdoor unit 160 from the fixed part 10 provided continuously from the through-hole decorative cover 1 Since the sealing tape 130 can be fixed and sealed by winding the protective tape 130, the sealing filler such as the putty 90 is not exposed and the appearance is not impaired, and the piping work itself can be easily performed.

  FIG. 4B shows the pipe 140 fixed to the through-hole decorative cover 1. As shown in FIG. 4B, since the putty 90 is not provided from the outside, the aesthetic appearance is not impaired. Since the back surface of the cover portion 20 is filled with the putty 90 to fill the gap 115 between the insertion portion 30 and the penetration sleeve 100, rainwater and the like can be prevented from entering the room through the gap 115. In addition, at the time of piping work, when the pipe 140 is fixed to the fixing portion 10, the protective tape 130 is only wrapped and fixed, so that the construction itself is simple and there is a gap between the pipe 140 and the through hole decorative cover 1. Hard to occur.

  As mentioned above, although the embodiment in the through-hole decorative cover of the present invention has been described, the present invention is not limited to the described embodiment, and various modifications can be made within the scope described in each claim. .

DESCRIPTION OF SYMBOLS 1 Through-hole decorative cover 10 Fixed part 20 Cover part 30 Insertion part 40 Notch 50 Recess 50 for screw holes
60 Piping hole 70 Concave 80 Convex 90 Putty 95 Clearance 100 Through sleeve 110 Drain pipe 115 Clearance 116 Clearance 120 Refrigerant pipe 125 Clearance 130 Protection tape 140 Piping 150 Air conditioner indoor unit 160 Air conditioner outdoor unit 170 Cosmetic cover 180 Wall 200 Through hole

Claims (10)

A through-hole decorative cover that covers the end of the through-hole opened in the wall to allow piping to pass through,
A flange portion that expands in the radial direction, and a cover portion that has an annular shape by having an opening,
In order to fix the pipe, a cylindrical fixing part provided to protrude in the axial direction of the cover part continuously with the opening of the cover part;
In order to fix the through hole decorative cover by inserting it into the through hole, a cylindrical insertion provided in the axial direction and projecting in the opposite direction to the fixing part is continuous with the opening of the cover part. And
A through-hole decorative cover comprising:   The through hole decorative cover according to claim 1, wherein the fixing portion has a length in the axial direction of 40 mm or more.   The through-hole decorative cover according to claim 1 or 2, wherein at least one circumferential notch is provided on an outer peripheral surface of the fixing portion.   The annular recess for filling the sealing filler which closes the clearance gap produced between the said cover part and the said wall is provided in the said insertion part side surface of the said cover part from Claim 1 characterized by the above-mentioned. The through-hole decorative cover according to claim 1.   The through-hole decorative cover according to claim 4, wherein an inner peripheral wall of the concave portion is formed by an outer peripheral surface of the insertion portion.   The through hole decorative cover according to claim 4 or 5, wherein the recess has a depth in the axial direction of 5 mm or more.   The through hole decorative cover according to any one of claims 4 to 6, wherein a distance between the inner peripheral wall and the outer peripheral wall is 10 mm or more in the recess. .   The through hole decorative cover according to any one of claims 1 to 7, wherein the fixing portion has a cylindrical shape.   The through hole decorative cover according to any one of claims 1 to 8, wherein the insertion portion has a cylindrical shape. An air conditioning system piping installation method for a through-hole opened in a wall for passing piping,
Filling a concave portion provided on the wall side of the cover portion with a sealing filler in order to close a gap formed between the through-hole decorative cover having a flange-shaped cover portion and the wall;
Inserting a cylindrical insertion portion provided to protrude on the wall side of the cover portion into the through hole;
Fixing the pipe for the air conditioning system inserted into the cover part, the insertion part, and the fixing part to a cylindrical fixing part protruding from the cover part to the opposite side of the wall;
A method for installing an air conditioning system piping, comprising:

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