JP2012002434A - Ventilation sleeve - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ventilation sleeve that is easily mounted to a wall of a building to form a ventilation path communicating between the inside and the outside of the building.SOLUTION: The ventilation sleeve includes a first sleeve 6 and a second sleeve 7, each having a cylindrical shape and a flange (a first flange 6b, a second flange 7b) formed on an end thereof. The ventilation sleeve is configured such that a threaded portion 6c is formed on the cylindrical outer peripheral surface of the first sleeve 6, and a threaded portion 7c, which is to be screw-engaged with the threaded portion 6c, is formed on the cylindrical inner peripheral surface of the second sleeve 7. This configuration enables the first sleeve 6 to be inserted into the second sleeve 7 as being screwed in the second sleeve 7, thus allowing the ventilation path communicating between the inside and the outside of the building to be formed without cutting a pipe.

Description

  The present invention relates to a ventilation sleeve that is constructed on a wall of a building and forms a ventilation path that connects an indoor side and an outdoor side.

  For example, this type of ventilation sleeve has the following configuration.

  That is, it is composed of a ventilation pipe provided with a flange portion extending in a substantially vertical direction at one end of a resin pipe such as a hard vinyl chloride pipe and an airtight rubber inserted into the pipe. In this construction method, the ventilation pipe is inserted into the ventilation opening opened in the wall of the building, the flange portion is fixed to the wall, and then the airtight rubber is inserted from the opposite side to form a ventilation sleeve (patent) Reference 1).

JP-A-9-177299

  The problem with such ventilation sleeves is that the length of the sleeve must be adjusted to the wall thickness. That is, the thickness of the wall varies depending on the building, and the thickness of the building may vary depending on the location of the wall. Therefore, the pipe must be cut in advance by measuring the thickness of the wall of the ventilation opening of the construction part, or the pipe protruding from the wall must be cut after fixing the flange part at one end.

  Accordingly, the present invention solves the above-mentioned conventional problems, and provides a ventilation sleeve that forms a ventilation path that connects the indoor side and the outdoor side, which can reduce the number of pipe cutting steps and can be easily constructed on the wall of a building. It is to provide.

  In order to solve this object, the present invention is composed of a first sleeve and a second sleeve, both of which are cylindrical and have a flange formed at the end, and a screw is attached to the cylindrical outer peripheral surface of the first sleeve. And a threaded portion that is threadedly engaged with the threaded portion is formed on the inner circumferential surface of the cylinder of the second sleeve, thereby achieving the intended purpose.

  According to the present invention, the first sleeve and the second sleeve are formed with flanges at the end portions, the thread portion is formed on the cylindrical outer peripheral surface of the first sleeve, and the cylindrical inner periphery of the second sleeve is formed. By forming a threaded portion to be screwed into the threaded portion on the surface, when the first sleeve and the second sleeve are screwed together, the sleeve is inserted inside the second sleeve, so that the pipe is cut. As a result, a ventilation path that connects the indoor side and the outdoor side is formed, and the effect that the sleeve for ventilation can be easily constructed on the wall of the building can be obtained.

The perspective view of the ventilation apparatus of the 1st Embodiment of this invention Exploded perspective view of the ventilation device Cross section of the ventilation system The perspective view which shows the cylindrical part of the 2nd sleeve of the ventilation apparatus Sectional drawing of the ventilation apparatus of the 2nd Embodiment of this invention The perspective view of the ventilation apparatus of the 3rd Embodiment of this invention Cross section of the ventilation system

  The ventilation sleeve according to claim 1 of the present invention is composed of a first sleeve and a second sleeve, both of which are cylindrical and have a flange formed at the end, and a threaded portion on the cylindrical outer peripheral surface of the first sleeve. And a threaded portion that is screwed into the threaded portion is formed on the cylindrical inner peripheral surface of the second sleeve. As a result, when the first sleeve and the second sleeve are screwed together, the sleeve is inserted inside the second sleeve to form a ventilation path that connects the indoor side and the outdoor side. There is an effect that it can be applied to the wall.

  Further, a handle for rotating the sleeve by hand is provided on the flange side of at least one of the first sleeve and the second sleeve. As a result, when the first sleeve and the second sleeve are screwed together, the handle can be held and the sleeve can be rotated, so that the ventilation sleeve can be easily installed in the ventilation port, and the ventilation sleeve can be easily There is an effect that it can be applied to the wall of the building.

  In addition, the screw portion of either the first sleeve or the second sleeve is formed with several peaks at the tip portion. As a result, the first sleeve and the second sleeve have the same length of the screw part to be screwed at all times, so that the rotating force is constant, and the ventilation sleeve can be easily constructed on the wall of the building. Play.

  Further, the thread of the threaded portion provided in the second sleeve has a configuration in which the threaded portion is discontinuous so that the threaded portion does not overlap when viewed from the axial direction. As a result, the mold for molding the screw on the inner cylinder side can be created without providing a slide structure, the second sleeve can be molded with a simple mold, and the ventilation sleeve can be easily formed in the building. There is an effect that it can be applied to the wall.

  Moreover, it has the structure which provided the mark which the starting position of each screw thread corresponds in each sleeve part edge part of a 1st sleeve and a 2nd sleeve. As a result, if the first mark at the end of the sleeve portion of the first sleeve is aligned with the second mark at the end of the sleeve portion of the second sleeve, and the sleeve is rotated, the respective screws will be smoothly screwed together. The ventilation sleeve can be easily installed on the ventilation opening, and the ventilation sleeve can be easily installed on the wall of the building.

  Moreover, it has the structure which provided the circular groove | channel which makes the axis | shaft of a sleeve the center in the flange part of the sleeve which becomes the outdoor side of either the 1st sleeve or the 2nd sleeve. As a result, even if there is a hanging part in the ventilation opening that opens in the wall, if the part is small, the size of the flange can be changed along the circular groove and covered with the flange of the smallest area And the ventilation sleeve can be easily constructed on the wall of the building.

  Moreover, it has the structure which provided the notch which connects the said circular groove and an outer peripheral side in the flange part which provided the said circular groove. As a result, when changing the size of the flange on the outdoor side, the flange can be easily cut along the circular groove, and the ventilation sleeve can be easily constructed on the wall of the building. Play.

  Also, an annular hood that protrudes to the outdoor side is provided on the flange of the sleeve on the outdoor side of either the first sleeve or the second sleeve, and an outdoor hood that can be rotated by engaging with the annular part is provided. It has a configuration. As a result, after installing the ventilation sleeve on the ventilation opening, if the outdoor hood is engaged with the flange on the wall on the outdoor side, the outdoor hood will block rain and rainwater from the outside will enter the ventilation sleeve. And the ventilation sleeve can be easily constructed on the wall of the building.

  Moreover, it has the structure which provided the draining part which protruded from the wall surface in the collar part of the said outdoor hood. As a result, when the drainer is constructed so that it is located on the lower side, rainwater that travels through the outdoor hood is transferred to the drainer and drops away from the wall surface, thus reducing dirt on the wall surface due to dirty water. The ventilation sleeve can be easily constructed on the wall of the building.

  Moreover, it has the structure which made the outdoor hood or the outdoor hood and the sleeve on the outdoor side made of metal. Thereby, strength deterioration due to ultraviolet rays is prevented, strength against external loads such as screwing at the time of construction is improved, and the ventilation sleeve can be easily constructed on the wall of the building.

  In addition, the first sleeve is disposed on the indoor side of the ventilation opening opened in the wall, and the lower portions of the inner peripheral surfaces of the first sleeve and the second sleeve are provided with a slope that is inclined downward toward the outdoor side. As a result, the water that has entered the first sleeve from the indoor side or the outdoor side flows into the second sleeve from the end of the first sleeve due to the downward slope toward the outdoor side, and is also provided in the second sleeve. Due to the downward slope toward the outdoor side, the second sleeve end is drained to the outside, and the ventilation sleeve can be easily constructed on the wall of the building.

  In addition, a hole rib is provided on the outer circumference of the cylinder on the flange side of the first sleeve. As a result, when the first sleeve is inserted, the hole for ribs hits the ventilation port opened in the wall so that the first sleeve is positioned, and the cylindrical portion is located at the center of the ventilation port, and the second sleeve is placed around it. A gap for screwing can be ensured, and the ventilation sleeve can be easily constructed on the wall of the building.

  The hole rib has a structure in which a cut is provided on the flange side. Thereby, the outer peripheral side of the hole rib can be folded or cut, and the distance from the apex on the outer peripheral side and the central axis of the first cylindrical portion can be changed. Therefore, even if the opening size of the hole serving as the ventilation opening provided on the wall of the building is slightly deviated, it is possible to construct the ventilation sleeve without rattling.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
As shown in FIG. 1, a hole 2 serving as a ventilation opening is opened in the wall 1 of the building, and the indoor 3 and the outdoor 4 communicate with each other through the hole 2. A ventilation sleeve 5 is installed in the hole 2.

  As shown in FIGS. 2, 3, and 4, the ventilation sleeve 5 includes a first sleeve 6 having a first flange 6b formed at an end of the first cylindrical portion 6a, a second cylindrical portion 7a, and a second cylindrical portion 6a. It is comprised with the 2nd sleeve 7 comprised with the flange 7b. In this embodiment, the second sleeve 7 is provided on the outdoor side. And in the 2nd flange 7b used as the outdoor side, while forming the annular part 8 which protrudes toward the outdoor side, the handle 9 is formed.

  A screw portion 6c is formed on the outer peripheral surface of the first cylindrical portion 6a, and a screw portion 7c is formed on the inner peripheral surface of the second cylindrical portion 7a. The threaded portion 6c and the threaded portion 7c are screwed together so that the first sleeve 6 is on the inside and the second sleeve 7 is on the outside. The screw portion 6c is formed on the outer peripheral surface of the first cylindrical portion 6a over the length L1, but the screw portion 7c is formed at one end of the inner peripheral surface of the second cylindrical portion 7a with a pitch of about 1 to 5 thread threads. The thread length L2 is formed.

  The thread 10 that forms the threaded portion 7c is lacking so that the threads 10 do not overlap each other when viewed from the direction of the axis 11 of the second cylindrical portion 7a. It has become.

  The first mark 12 and the second mark 13 are located at positions where the thread start position of the first cylindrical portion 6a of the first sleeve 6 and the thread thread 10 start position of the second cylindrical portion 7a of the second sleeve 7 coincide. Are provided to match.

  The inner peripheral portion of the first cylindrical portion 6a has a gentle conical shape, and the lower portion 14 has an inclination of a downward gradient θ toward the outdoor side. Similarly, the inner peripheral portion of the second cylindrical portion 7a has a gentle conical shape and has an inclination equivalent to the downward gradient θ toward the outdoor side.

  Hole ribs 15 are provided on the outer periphery of the first flange 6b. The hole ribs 15 are formed almost uniformly on the outer periphery of the first cylindrical portion 6a, and the outer peripheral dimension D1 of the hole rib 15 is larger than the outer peripheral dimension D2 of the second cylindrical portion 7a. Further, the first flange 6b is provided with a screw hole 16 for screwing to the wall 1.

  The construction of the ventilation sleeve 5 having such a configuration will be described. First, the first sleeve 6 is inserted from the indoor side, and the second sleeve 7 is inserted from the outside. At this time, the second mark 13 of the second sleeve 7 is inserted so as to coincide with the first mark 12 of the first sleeve 6, and the second sleeve 7 is rotated using the handle 9. Then, the starting position of the screw thread 10 of the second cylindrical part 7a and the screw thread starting position of the first cylindrical part 6a coincide with each other and are screwed together with the rotation. That is, the 2nd mark 13 and the 1st mark 12 match the position of a screw, and can be screwed together without making it idle. A space portion corresponding to the height of the hole rib 15 is formed between the outer periphery of the first cylindrical portion 6 a and the inner peripheral surface of the hole 2. When the second sleeve 7 continues to rotate, the second sleeve 7 is inserted into the space between the outer periphery of the first cylindrical portion 6 a and the inner peripheral surface of the hole 2. That is, the second sleeve 7 is stored without hitting the hole 2. If the 2nd flange 7b is hold | maintained in the wall 1, the ventilation path which connects the indoor 3 side and the outdoor 4 side will be formed, and the sleeve for ventilation can be easily constructed in the wall of a building.

  The handle 9 is formed so that several prisms protrude from the annular portion 8, but may be a columnar shape as long as the second sleeve 7 can be easily rotated by hand. Alternatively, a rotating jig that fits into the second sleeve 7 may be prepared as a separate product, and this rotating jig may be fitted into the second sleeve 7 and rotated.

  What is necessary is just to set the length of the 1st sleeve 6 and the 2nd sleeve 7 so that it can construct according to the width dimension of the thinnest wall among wall thickness generally assumed. If it does so, even if it is a wall thicker than it, it can respond to the thickness to the range which the 2nd sleeve 7 can screw together. Specifically, when the dimension of the first sleeve 6 and the second sleeve 7 (the length of the cylindrical portion) is about 90 mm, the wall thickness of 100 to 150 mm can be handled.

  The lengths of the first sleeve 6 and the second sleeve 7 do not have to be the same, but the range corresponding to the wall thickness is reduced. However, if it can be determined that the number of cases installed on the thin wall is small, the length of the first sleeve 6 is made longer than the width dimension of the thinnest wall among the generally assumed wall thicknesses, and the second sleeve 7 It is preferable that the length dimension of is substantially the same as the wall thickness. When constructing on a few thin walls, the construction can be performed in the same manner by cutting the first sleeve 6 on site.

  The length L2 of the threaded portion 7c of the second sleeve 7 is formed at one end of the inner peripheral surface of the second cylindrical portion 7a with a pitch of about 1 to 5 thread. Accordingly, the second sleeve 7 moves within the range of the screw portion 6c formed on the outer peripheral surface of the first cylindrical portion 6a of the first sleeve 6 over the length L1, but the length of the screw portion to be screwed is the same. Therefore, the rotating force is constant and the workability is good.

  Further, the screw thread 10 forming the screw part 7c is formed of a screw part discontinuous with the screw threads 10a, 10b,..., And the screw threads 10a, 10b,. Since they do not overlap, when the second cylindrical portion 7a is molded with a mold, if the mold slide direction is the direction of the axis 11, it is not necessary to provide a complicated mold configuration such as a slide core, and the cost is low. The second cylindrical portion 7a can be formed.

  Further, in the above configuration, the lower portion 14 of the inner peripheral portion of the first cylindrical portion 6a has an inclination of a downward gradient θ toward the outdoor side, and similarly, the inner peripheral portion of the second cylindrical portion 7a of the second sleeve 7 Has an inclination equivalent to the downward gradient θ toward the outdoor side. Thereby, the water that has entered the first sleeve 6 from the indoor 3 side or the outdoor 4 side flows into the second sleeve 7 from the end of the first sleeve 6. Further, due to the gradient provided in the inner peripheral portion of the second cylindrical portion 7a of the second sleeve 7, the water is drained from the end of the second sleeve to the outside.

  Further, the hole diameter of the hole 2 serving as a ventilation opening opened in the wall 1 is the outer peripheral dimension D1 of the hole rib 15. In the present embodiment, the first sleeve 6 is inserted into the hole 2 from the indoor side, the screw hole 16 provided in the first flange 6b is used, and the first flange 6b is fixed to the wall 1 with a screw (not shown). In this state, the first cylindrical portion 6 a of the first sleeve 6 is positioned substantially at the center of the hole 2 without being biased to one of the holes 2 by the hole ribs 15 formed on the outer periphery thereof. That is, a space corresponding to the height of the hole rib 15 is formed in the outer periphery of the first cylindrical portion 6 a and the hole 2.

  In addition, it is preferable to provide a cut (cut 24) on the first flange 6b side of the hole rib 15 so that the radial height of the hole rib 15 can be adjusted. That is, the hole rib 15 is provided so as to be in contact with the first flange 6b and the first cylindrical portion 6a, but a notch 24 is made from the outer peripheral direction in a portion in contact with the first flange 6b. If it is such a structure, the outer peripheral side of the rib 15 for holes can be bent or cut off, and the distance from the vertex of the outer peripheral side and the central axis of the 1st cylindrical part 6a can be changed. Therefore, even if the opening dimension of the hole 2 provided in the wall 1 of the building is somewhat out of order, the ventilation sleeve 5 can be constructed without any backlash.

(Embodiment 2)
As shown in FIG. 5, a hole 2 serving as a ventilation opening is opened in the wall 1 of the building, and the indoor 3 and the outdoor 4 communicate with each other through the hole 2. A ventilation sleeve 5 is installed in the hole 2.

  The ventilation sleeve 5 includes a first sleeve 18 having a first flange 18b formed at an end of the first cylindrical portion 18a, and a second sleeve 19 including a second cylindrical portion 19a and a second flange 19b. Composed. A screw portion 18c is formed on the inner peripheral surface of the first cylindrical portion 18a, and a screw portion 19c is formed on the outer peripheral surface of the second cylindrical portion 19a. The threaded portion 18c and the threaded portion 19c are screwed together to form a ventilation sleeve 5 in which the first sleeve 6 is the outer side and the second sleeve 7 is the inner side. The first flange 18 b is fixed to the wall 1 with a screw 22.

  In the above configuration, a hole 2 serving as a ventilation opening is formed in the wall 1 in accordance with the outer diameter D3 of the first cylindrical portion 18a, and the first flange 18b is fixed to the wall 1 with a screw 22. In this way, since the outer diameter D4 of the second cylindrical portion 19a is smaller than the outer diameter D3 of the first cylindrical portion 18a, the second sleeve 19 can be easily removed from the wall surface on the opposite side of the wall surface that fixes the first flange 18b. Can be constructed. That is, there is an effect that the ventilation sleeve 5 can be easily constructed on the wall of the building. Furthermore, even if falling objects such as dust and concrete particles are generated from the hole 2 when the first sleeve 18 is fixed to the wall, the falling parts are screwed because the screw part 18c is covered with the first cylindrical part 18a. Since it does not adhere to the portion 18c, there is an effect that troubles caused by falling objects are less likely to occur when the screw portion 19c of the second cylindrical portion 19a of the second sleeve 19 is screwed together.

(Embodiment 3)
6 and 7, the same components as those in FIGS. 2 and 3 are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 6, the second flange 7b is provided with a circular groove 23 having the center axis of the second cylindrical portion 7a as a center. Furthermore, the notch 24 is provided so that the outer peripheral side of the 2nd flange 7b and the circular groove 23 may be connected.

  As shown in FIG. 7, the second flange 7b on the outdoor side is provided with an annular portion 8 that protrudes toward the outdoor side. The outdoor hood 25 has a flange portion 26 that is substantially the same size as the annular portion 8, and an opening 27 is provided at the center of the flange portion 26. The opening 27 is provided with a lattice-like net or a lattice-like crosspiece. Further, the opening 27 is covered with the round cover portion 28 on the outdoor side 4, and the horizontal opening 27 and the vertical lower opening 29 communicate with each other.

  In addition, the hood portion 26 is provided with an outdoor hood fitting claw 30 that protrudes toward the center of the circle. A hood groove 31 for engaging the outdoor hood fitting claw 30 is provided on the outer peripheral side of the annular portion 8.

  In the above configuration, when the second sleeve 7 is rotated so that the first sleeve 6 is inserted inside the second cylindrical portion 7 a and the second sleeve 7 is held against the wall 1, the indoor side and the outdoor side communicate with each other. A path is formed. The second flange 7b has a function of concealing and covering the ventilation opening opened in the wall. However, when the hanger portion is small, the size of the second flange 7b can be reduced along the circular groove 23. . That is, it can cover with the 2nd flange 7b of the minimum area. In addition, since the notch 24 that connects the outer periphery of the second flange 7b and the circular groove 23 serves as a guide for cutting the circular groove 23, the second flange 7b can be easily cut.

  Moreover, the outdoor hood 25 can be rotated around the opening of the second cylindrical portion 7a by being attached to the outer periphery of the annular portion 8 so as to be hooked by the flange portion 26 of the outdoor hood 25. Accordingly, the outdoor hood 25 can be fixed at a desired position regardless of the position at which the second sleeve 7 is fixed. That is, since the lower opening 29 opens downward, the round cover portion 28 blocks rain, and rainwater from the outdoors 4 can be prevented from entering the ventilation sleeve 5.

  Moreover, since the draining part 32 which protruded from the wall surface to the collar part 26 of an outdoor hood is constructed so that it may be located in the lower side, the rain water which propagates the collar part 26 of the outdoor hood 25 flows along the draining part 32, flows, Since it drops from the lowermost part of the draining part 32 away from the first surface, there is an effect of reducing dirt on the wall surface due to the rainwater flowing by concentrating on the lower side of the second flange 7b.

  Moreover, when the outdoor hood 25 exposed to the outdoor 4 or the outdoor hood 25 and the second sleeve 7 are made of iron, deterioration of the material due to ultraviolet rays can be further reduced, and weather resistance is improved. The outdoor hood 25 and the second sleeve 7 can be easily made even if they are made of metal.

  According to the present invention, the first sleeve and the second sleeve, both of which are cylindrical and formed with flanges at the ends, are formed with a threaded portion on the cylindrical outer peripheral surface of the first sleeve, and the first sleeve Since the threaded portion that is screwed into the threaded portion is formed on the inner circumferential surface of the two sleeves, when the first sleeve and the second sleeve are screwed together, the sleeve is inserted inside the second sleeve. The ventilation path that connects the indoor side and the outdoor side without cutting the pipe is formed, and the effect that the ventilation sleeve can be easily installed on the wall of the building can be obtained. It can be used not only for equipment but also for duct construction and piping construction for air conditioners.

DESCRIPTION OF SYMBOLS 1 Wall 3 Indoor 4 Outdoor 5 Ventilation sleeve 6 1st sleeve 6a 1st cylindrical part 6b 1st flange 6c Thread part 7 2nd sleeve 7a 2nd cylindrical part 7b 2nd flange 7c Thread part 8 Ring part 9 Handle 12 1st 1 mark 13 2nd mark 14 lower part 15 hole rib 16 screw hole 18 1st sleeve 18a 1st cylindrical part 18b 1st flange 18c screw part 19 2nd sleeve 19a 2nd cylindrical part 19b 2nd flange 19c screw part 23 circular groove 24 cutting 25 outdoor hood 31 hood groove 32 draining part

Claims (13)

Both are formed of a first sleeve and a second sleeve, both of which are cylindrical and have a flange formed at the end thereof, and a threaded portion is formed on the cylindrical outer peripheral surface of the first sleeve, and the cylindrical inner periphery of the second sleeve A ventilation sleeve having a threaded portion threaded onto the threaded portion. The ventilation sleeve according to claim 1, wherein a handle for rotating the sleeve by hand is provided on a flange side of at least one of the first sleeve and the second sleeve. The ventilation sleeve according to claim 1 or 2, wherein the thread portion of either the first sleeve or the second sleeve is formed by a plurality of peaks at the tip portion. The ventilation sleeve according to claim 3, wherein the thread of the thread portion provided on the second sleeve is a discontinuous screw that lacks the thread so that the thread portions do not overlap when viewed in the axial direction. The ventilation sleeve according to claim 1, wherein marks at which the start positions of the respective screw threads coincide with each other are provided at the end portions of the first sleeve and the second sleeve. The ventilation sleeve according to any one of claims 1 to 5, wherein a circular groove is provided around the axis of the sleeve in the flange portion of the sleeve on the outdoor side of either the first sleeve or the second sleeve. The ventilation sleeve according to claim 6, wherein a notch is provided in a flange portion of the second sleeve provided with the circular groove. The flange of the sleeve on the outdoor side of either the first sleeve or the second sleeve is provided with an annular portion protruding to the outdoor side,
The ventilation sleeve according to any one of claims 1 to 7, further comprising an outdoor hood that is provided with a collar portion that engages with the annular portion and is rotatable. The ventilation sleeve according to claim 8, wherein a draining portion projecting from the wall surface is provided on a collar portion of the outdoor hood. The ventilation sleeve according to claim 8 or 9, wherein the outdoor hood, or the outdoor hood and the second sleeve are made of metal. The first sleeve is arranged on the indoor side of a ventilation opening opened in the wall, and the lower part of the inner peripheral surface of the first sleeve and the second sleeve is provided with an inclination that becomes a downward slope toward the outdoor side. The ventilation sleeve according to one. The ventilation sleeve according to any one of claims 1 to 11, wherein a hole rib is provided on the outer circumference of the cylinder on the flange side of the first sleeve. The ventilation sleeve according to claim 12, wherein the hole rib is provided with a cut on the flange side.

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