JP2006017206A - Pipe protector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pipe protector, corresponding to the thickness of a wide-range wall by simple means. <P>SOLUTION: This pipe protector A includes: a sleeve cylinder 9 made of synthetic resin, which is provided with a flange part 7 formed integrally with the base end part, and a male screw part 8 formed at least in the outer periphery of the tip part; and a nut body 10 engaged with the male screw part 8 of the sleeve cylinder. The nut body 10 is engaged with the male screw part 8 of the sleeve cylinder 9, and the sleeve cylinder 9 is inserted and fixed by the nut body 10 and the flange part 7. The sleeve cylinder 9 is provided with a plurality of connector insert holes 11, 12 formed in two or more parts at predetermined spaces in the longitudinal direction with dimensions to insert the connectors. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a pipe protection device that protects a pipe of a separation-type air conditioner or the like that is inserted into a wall hole of a house, and in particular, the wall has a normal thickness such as a private house, or a thickness in an apartment house. The present invention relates to a pipe protection device that can be attached to a wide range of wall thicknesses such as walls.

  Conventionally, as a pipe protection device of this type, for example, as described in Patent Document 1, a sleeve tube, a tube portion that is externally fitted to one end portion on the indoor side of the sleeve tube, and a periphery of a wall hole What is comprised with the protection member which has the collar part applied to is integrated is known.

And a sleeve made of a synthetic resin having a flange portion integrally formed at the base end portion and a male screw portion formed on the outer periphery, and a nut body screwed into the male screw portion of the sleeve tube. A device in which a nut body is screwed into a male screw portion of a cylinder and the sleeve cylinder is inserted into a wall hole and fixed by the nut body and a flange portion of the sleeve cylinder has been developed previously.
JP-A-5-26378

  By the way, in the thing of the said patent document 1, and the thing of prior development technology, since the length of the sleeve cylinder was preset, it was difficult to adapt to the thickness of the wall in a wide range.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a pipe protection device capable of dealing with a wide range of wall thicknesses with simple means.

  According to the first aspect of the present invention, the synthetic resin sleeve cylinder in which the flange portion is integrally molded at the base end portion and the male screw portion is formed at least on the outer periphery of the distal end portion, and the male screw portion of the sleeve cylinder is screwed. A pipe having a structure in which the nut body is screwed into a male screw portion of the sleeve cylinder, and the sleeve cylinder is inserted into a wall hole and fixed by the nut body and the flange portion. In the protective device, the sleeve tube is provided with a plurality of connecting tool insertion holes each having a size capable of inserting a connecting tool at a plurality of positions at predetermined intervals in the length direction. To do.

  According to a second aspect of the present invention, in the pipe protection device according to the first aspect, the sleeve tube is provided between one connector insertion hole and the other connector insertion hole in the length direction thereof. A cutting position indication display indicating a cutting position when cutting the middle of the sleeve is provided on the outer surface of the sleeve.

  According to a third aspect of the present invention, in the pipe protection device according to the second aspect, the cutting position instruction display is a cutting instruction line provided in a circumferential direction.

  According to a fourth aspect of the present invention, in the pipe protection device according to the first aspect, the connector insertion hole is a circular hole having a diameter set to about 3 to 7 mm.

  According to the pipe protection device of the first aspect, the sleeve portion made of synthetic resin in which the flange portion is integrally formed at the base end portion and the male screw portion is formed at least on the outer periphery of the tip end portion, and the male sleeve of the sleeve tube A nut body that is screwed into the screw portion, the nut body is screwed into the male screw portion of the sleeve cylinder, and the sleeve cylinder is inserted into the wall hole and fixed by the nut body and the flange portion. The sleeve cylinder is provided with a plurality of connector insertion holes each having a size that allows a connector to be inserted at a plurality of locations at predetermined intervals in the length direction. Since it is a structure, it becomes possible to use the sleeve cylinder as it is, or to cut the middle of the sleeve cylinder and use it as two divided sleeve cylinders, and to open a plurality of connector insertion holes in the sleep cylinder Mounting by simple means It is possible to cope with a wide range of wall thicknesses, and it is fixed to the wall by a screwing method using a flange part of the sleeve cylinder and a nut body screwed into the male screw part of the sleeve cylinder. The fixing work can be simplified.

  According to the pipe protection device of the second aspect, the sleeve is provided on the outer surface between the one connector insertion hole and the other connector insertion hole in the length direction of the sleeve cylinder. Since the indication for cutting position indication that shows the cutting position when cutting the middle of the cylinder is made, when cutting the sleeve cylinder to correspond to the thick wall, it is possible to clearly notify the installation operator of the cutting location become.

  According to the pipe protection device of the third aspect, since the indication for cutting position instruction is a cutting instruction line provided in the circumferential direction, the installation operator can connect the sleeve cylinder along the cutting instruction line. The sleeve can be cut with less failure.

  Further, according to the pipe protection device of the fourth aspect, the connecting tool insertion hole is a circular hole having a diameter set to about 3 to 7 mm. Suitable for insertion.

  Next, an embodiment of the pipe protection device according to the present invention will be described with reference to FIGS. In the figure, reference numeral 1 denotes a wall of an air-conditioned room in which an indoor unit 2 of a separation type air conditioner that air-conditions the room is installed. The wall 1 includes a refrigerant pipe 3, a drain pipe (not shown), and A wall hole 5 through which various pipes such as a ventilation pipe 4 used for ventilating (supplying / exhausting) the room is provided, and the pipe protection device A according to the present invention is attached to the wall hole 5. It is done.

  As shown in FIG. 3, the indoor unit 2 has a back plate 2A fixed to a wall surface near the ceiling in the room, and a wall 1 (the wall is not shown in FIG. 3) through the back plate 2A. Installed. Further, notches 6 and 6 are formed in the lower left and right corners of the back plate 2A, and the wall hole 5 is formed near one of the notches 6 and 6. It is to be provided.

  The wall hole 5 is generally opened by setting its diameter to about 65 mm. And as shown in FIG. 4, the said wall hole 5 is made to incline with an inclination angle of about 5 degree | times with respect to a horizontal direction so that it may become a downward gradient toward the outdoor side (outdoor side) from an indoor side. It is good to open it, but you can open it horizontally without tilting. Further, the wall hole 5 is pre-drilled depending on the form of the house, or when the protective cylinder H is attached in advance to the perforated wall hole 5 as shown in FIG. There are many.

  As shown in FIGS. 1 to 4, the pipe protection device A is made of a synthetic resin in which an outward flange portion 7 is integrally formed at the base end portion and a male screw portion 8 is formed on the outer periphery of the distal end portion. This is a schematic configuration including a sleeve cylinder 9 and a synthetic resin nut body 10 that is screwed into the male screw portion 8 of the sleeve cylinder 9.

  As shown in FIG. 4, the collar portion 7 is provided in a slightly inclined state with respect to the sleeve tube 9, and as shown in FIGS. A cut portion 7A indicating a lower position when the sleeve cylinder 9 is inserted and attached to the wall hole 5 is provided, and the sleeve cylinder 9 is directed from the indoor side toward the outdoor side with the cut portion 7A facing downward. By inserting the nut body 10 into the male screw portion 8 projecting to the outdoor side and tightening the nut body 10 and tightening, the flange portion 7 is directly or directly attached to the wall surface around the wall hole 5 (see FIG. 8). Contact).

  The sleeve cylinder 9 has an overall length of about 220 mm, an inner diameter of about 59 mm, and an outer diameter of about 64 mm. The male screw portion 8 is formed on the outer periphery of a portion corresponding to about 1/2 to 2/5 on the tip end side in the length direction from the flange portion 7 to the tip end. No screw portion is formed on the outer periphery on the base end portion side from the end position to the flange portion 7, and the outer diameter dimension of the cylindrical portion without the screw portion is the male screw portion 8. It is formed to have a diameter of about 62 mm, which is smaller than the outer diameter of the portion.

  Then, as shown in FIG. 2, the sleeve cylinder 9 can be inserted with a connector, which will be described later, in the circumferential direction of the first location B and the second location C which are provided with a predetermined interval in the length direction. The first connector insertion holes 11 and 11 and the second connector insertion holes 12 and 12 having a size set to about 3 to 7 mm (in the embodiment, about 5 mm). Are provided in plural (for example, 2 to 4). Further, the sleeve tube 9 is provided with a single hole 13 having a diameter set to about 3 to 7 mm at an appropriate position closer to the tip than the second connector insertion hole 12. Yes.

  1, 2, and 4 is a cutting instruction line as a cutting position instruction display, and this cutting instruction line 14 is a first connector insertion hole in the length direction of the sleeve tube 9. 11 is provided in the circumferential direction of the outer surface between the second connector insertion hole 12 and the second connector insertion hole 12, and shows a cutting position when cutting the middle of the sleeve tube 9.

  Further, as shown in FIG. 1, the nut body 10 has a concavo-convex portion that is continuous with the entire outer periphery of the sleeve tube 9 so as to be easily tightened by screwing with the male screw portion 8 of the sleeve cylinder 9. 15 is formed.

  Here, as shown in FIG. 5, the first support plate 17 of the air supply unit 16 is arranged in contact with the wall 1 on the wall surface around the wall hole 5 on the outdoor side. The air supply unit 16 is for forcibly introducing outside air into the indoor unit 2 through the ventilation pipe 4.

  An annular second support plate 18 is screwed to the first support plate 17 (not shown). The male screw portion 8 of the sleeve cylinder 6 is passed through the first support plate 17 and the second support plate 18, and the male screw portion that passes through the first support plate 17 and the second support plate 18. 8, the nut body 10 is screwed together.

  The nut body 10 and the flange 7 sandwich the wall 1, the first support plate 17 and the second support plate 18 from both the outdoor side and the indoor side. The first support plate 17 and the second support plate 18 of the air supply unit 16 are also fixed to the wall 1 while being fixed to the wall 1 while being inserted into the hole 5.

  FIG. 4 shows a state before the annular second support plate 18 is screwed to the first support plate 17 and before the nut body 10 is tightened to the back of the male screw portion 8. Therefore, although the second support plate 18 and the nut body 10 are illustrated apart from each other with respect to the first support plate 17, the second support plate 18 is screwed to the first support plate 17. When the tightening of the nut body 10 is completed, the nut body 10 comes into contact with the wall surface around the wall hole 5 on the outdoor side via the first and second support plates 17 and 18. .

  As shown in FIGS. 3 and 5, the air supply unit 16 has an outer cover 19, and the outer cover 19 is inserted into the sleeve tube 9 and led to the outside of the refrigerant pipe 3 led out to the room. The air supply blower 20 for ventilation and the assembly base 21 of the air supply blower 20 are incorporated in the interior, and the assembly base 21 is configured to cover the first support plate 17. The ventilation pipe 4 is connected to the suction port 23 of the air supply fan 20.

  The pipe protection device A of the present invention according to the above description is inserted and fixed to the wall hole 5 in accordance with the wall 1 of a general house, that is, the wall 1 having a wall thickness T of about 190 mm. Shows the case.

  Next, the case where the pipe protection device A of the present invention is attached to a wall 1 having a wall thickness T of, for example, about 190 to 480 mm and a wall hole 5 of about 65 mm or more in an apartment house such as an apartment will be described. .

  As shown in FIGS. 6 to 9, when the wall thickness T is about 190 to 300 mm, first, the sleeve tube 9 is moved along a cutting instruction line 14 as a cutting position instruction display such as a gold saw. Cut using a cutting tool (not shown), and divided into two parts, a first divided sleeve cylinder 9A provided with the flange 7 and a second divided sleeve cylinder 9B formed with a male screw part 8. .

  Then, as shown in FIG. 6, the first divided sleeve cylinder 9A and the second divided sleeve cylinder 9B divided into two parts are connected to the first and second connector insertion holes 11 and 12 in the form of strips. The binding bands 25, 25 made of synthetic resin as a tool are passed through the binding bands 25, 25, and the binding bands 25, 25 are bound to each other so as to be connected to each other.

  Next, as shown in FIG. 7, the first and second divided sleeve cylinders 9A and 9B connected through the binding band 25 are used as a pull string in the hole 13 of the second divided sleeve cylinder 9B. Another binding band 26 is passed through, and this binding band 26 is pulled out of the wall hole 5 from the outdoor side. Thus, the first divided sleeve cylinder 9A and the second divided sleeve cylinder 9B are inserted into the wall hole 5, and the male screw portion 8 of the second divided sleeve cylinder 9B protrudes from the wall hole 5 to the outdoor side. .

  Then, after the male screw portion 8 of the second divided sleeve cylinder 9B protruding to the outdoor side is passed through the first and second support plates 17 and 18, the nut body 10 is inserted into the male screw portion 8. Then, the binding band 26 is removed from the hole 13.

  Thus, when the nut body 10 is tightened, the nut body 10 and the flange portion 7 of the first divided sleeve cylinder 9A bring the wall 1 and the first and second support plates 17 and 18 into the chamber. It is sandwiched from both the outside and the indoor side. Thus, the first and second divided sleeve cylinders 9A and 9B connected by the binding bands 25 and 25 are fixed to the wall 1 while being inserted into the wall hole 5, and the air supply unit 16 The first support plate 17 and the second support plate 18 are also fixed to the wall 1.

  FIG. 8 illustrates a state before the annular second support plate 18 is screwed to the first support plate 17 and before the nut body 10 is tightened to the inner portion of the male screw portion 8. Therefore, the second support plate 18 and the nut body 10 are illustrated apart from each other with respect to the first support plate 17, but the second support plate 18 is screwed to the first support plate 17. When the nut body 10 is tightened and the tightening of the nut body 10 is completed, the nut body 10 abuts against the wall surface around the wall hole 5 on the outdoor side via the first and second support plates 17 and 18. It is.

  8 indicates a packing interposed between the flange portion 7 of the first divided sleeve cylinder 9A and the wall 1, and 29 is interposed between the first support plate 17 and the wall 1. The packing is shown. These packings 28 and 29 are used for adjustment with respect to the thickness of the wall 1 or used as necessary to enhance the sealing performance.

  FIG. 9 shows a case where the pipe protection device A of the present invention is attached to the wall 1 having a wall thickness T of about 300 to 480 mm. In this case, the first divided sleeve cylinder 9A and the second divided sleeve cylinder 9A are shown. The sleeve cylinder 9B is connected via two binding bands 25, 25 (using four binding bands).

  FIG. 10 shows a case where the pipe protection device A of the present invention is attached to the wall 1 having a wall thickness T of about 300 to 480 mm and a wall hole 5 having a diameter of about 60 to 64 mm. In this case, the first split sleeve cylinder 9A and the second split sleeve cylinder 9B are connected via three binding bands 25, 25, 25 (using six binding bands), For the split sleeve 9B of No. 2, only the portion without the male screw part 8 having an outer diameter of about 62 mm is inserted into the wall hole 5, and the first split sleeve 9A has an outer diameter of about 62 mm. Therefore, the whole is inserted into the wall hole 5.

  Further, FIG. 11 shows that the first divided sleeve cylinder 9A and the second divided sleeve cylinder 9B in the pipe protection apparatus A of the present invention are replaced with the above-described binding band, and the surface is covered with a colored film. The case where it connects using the one metal wire 30, such as another color wire, is shown.

  In this case, the first connector insertion holes 11 and 11 provided in the first divided sleeve cylinder 9A are provided close to the collar portion 7 as shown in FIG.

  That is, after passing both ends of one metal wire 30 from the outside to the inside of the second connector insertion holes 12 and 12 provided in the second split sleeve cylinder 9B, the metal wire After both ends of 30 are passed from the inside through the two first connector insertion holes 11 and 11 provided in the first divided sleeve cylinder 9A, the first connector insertion holes 11 and 11 are inserted. From both ends, the both ends of the metal wire rod 30 that protrudes to the outside of the first divided sleeve cylinder 9A are twisted and fixed.

  When the metal wire 30 shown in FIG. 11 is used as a connecting tool, even if the wall thickness T of the wall 1 with the wall hole 5 is about 400 mm, for example, it is easy to use one metal wire. Is possible.

  As described above, in the pipe protection device A of the present invention, the flange portion 7 is integrally formed at the base end portion, and the male screw portion 8 is formed on the outer periphery of at least the distal end portion in the length direction. A sleeve portion 9 made of a synthetic resin, in which no screw portion is formed on the outer periphery on the base end side from the starting end portion to the flange portion 7 and the overall length is set to about 220 mm; And a nut body 10 that is screwed into the male screw portion 8 of the sleeve cylinder 9. The sleeve cylinder 9 has a first location B and a second location C that are spaced apart in the length direction. The first connector insertion holes 11 and 11 and the second connector insertion holes 12 and 12 each having a diameter set to about 3 to 7 mm so that the connectors can be inserted respectively. This is a configuration in which 2 to 4 pieces are provided in the circumferential direction.

  Therefore, when the sleeve tube 9 is used as it is without being cut, or in the middle of the sleeve tube 9 using a cutting tool such as a gold saw, it can be used as two divided sleeve tubes 9A and 9B. The pipe protection device A can be obtained by connecting the split sleeve cylinders 9A and 9B using the binding band 25 and the metal wire 30 using the connector insertion holes 11 and 12 of the split sleeve cylinders 9A and 9B. The thickness of the wall 1 to be attached (wall thickness T) can correspond to a wide range of about 160 to 400 mm.

  Moreover, since the fixing to the wall 1 is performed by the screwing method using the nut body 10 screwed to the flange portion 7 of the sleeve tube 9 and the male screw portion 8 of the sleeve tube 9, the fixing operation can be simplified.

  The sleeve tube 9 is formed by cutting the sleeve tube 9 halfway on the outer surface between the first connector insertion hole 11 and the second connector insertion hole 12 in the length direction thereof. Since the cutting instruction line 14 is provided as a cutting position instruction display indicating the cutting position, when the sleeve tube 9 is cut to correspond to a thick wall of, for example, about 160 mm or more, the cutting position is clearly indicated to the installation operator. It becomes possible to inform.

  Further, since the cutting instruction line 14 is provided in the circumferential direction of the sleeve cylinder 9, it is only necessary to cut the sleeve cylinder 9 along the cutting instruction line 14, and it is possible to cut the sleeve cylinder 9 with few failures. Become.

  Further, since the first and second connector insertion holes 11 and 12 are circular holes having a diameter set to about 3 to 7 mm, the bundling band 25 and the metal wire 30 can be easily drilled. The size is also suitable for insertion of a connector including

  Further, as described above, by connecting the split sleeve cylinders 9A and 9B using a single metal wire 30 such as a color wire as a connecting tool, the connection workability of the split sleeve cylinders 9A and 9B can be improved. In addition, it is effective in terms of cost and number of parts.

FIG. 1 is an exploded perspective view showing an embodiment of a pipe protection device according to the present invention. FIG. 2 is a perspective view of the sleeve cylinder alone. FIG. 3 is an explanatory view for explaining the use state of the pipe protection device according to the present invention with the wall removed. FIG. 4 is an explanatory diagram for explaining a state in which the pipe protection device according to the present invention is attached to the wall. FIG. 5 is an explanatory view for explaining the assembly of the air supply unit assembled in the pipe protection device according to the present invention. FIG. 6 is an explanatory view for explaining a case where the divided sleeve cylinders divided into two are connected by a binding band. FIG. 7 is an explanatory view for explaining a state in which the divided sleeve cylinder shown in FIG. 6 is inserted into the wall hole. FIG. 8 is an explanatory view for explaining a state in which the pipe protection device using the divided sleeve cylinder shown in FIG. 6 is attached to the wall. FIG. 9 is an explanatory view for explaining the attachment of the pipe protection device when the male screw portion of the split sleeve cylinder can be inserted into the wall hole. FIG. 10 is an explanatory view for explaining the attachment of the pipe protection device when the male screw portion of the split sleeve cylinder cannot be inserted into the wall hole. FIG. 11 is an explanatory view for explaining a case where the divided sleeve cylinders divided into two are connected by a metal wire.

Explanation of symbols

A Piping protection device T Wall thickness 1 Wall 3 Refrigerant piping (piping)
4 Ventilation piping (piping)
DESCRIPTION OF SYMBOLS 5 Wall hole 7 Eight part 8 Male screw part 9 Sleeve cylinder 9A 1st division | segmentation sleeve cylinder 9B 2nd division | segmentation sleeve cylinder 10 Nut body 11 1st connector insertion hole (connector insertion hole)
12 Second connector insertion hole (connector insertion hole)
13 Male screw hole 14 Cutting instruction line (cutting position indication display)
25 Cable tie (connector)
30 metal wire (connector)

Claims (4)

A sleeve part made of a synthetic resin in which a flange part is integrally formed at the base end part and a male screw part is formed at least on the outer periphery of the tip part, and a nut body screwed into the male screw part of the sleeve cylinder, A pipe protection device having a structure in which the nut body is screwed into a male screw portion of a sleeve cylinder, and the sleeve body is inserted into a wall hole and fixed by the nut body and the flange portion,
The pipe cylinder according to claim 1, wherein the sleeve cylinder is provided with a plurality of connector insertion holes each having a size allowing the connector to be inserted at a plurality of locations at predetermined intervals in the length direction. The sleeve cylinder is provided with a cutting position indication on the outer surface between one connector insertion hole and the other connector insertion hole in the length direction of the sleeve cylinder to indicate a cutting position when cutting the middle of the sleeve cylinder. The pipe protection device according to claim 1, wherein a display for use is provided. The pipe protection device according to claim 2, wherein the cutting position instruction display is a cutting instruction line provided in a circumferential direction. 2. The pipe protection device according to claim 1, wherein the connector insertion hole is a circular hole having a diameter of about 3 to 7 mm.

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