Cap member for wall penetration member and wall penetration hole closure structure

Abstract

To provide a cap member for a wall penetration member which enables easy installation of piping such as drain piping and ensures superior watertightness, and a wall penetration hole closure structure using the cap member.SOLUTION: A main body 3 is substantially disk-shaped and is provided, at its center portion, with a circular hole 7 to be passed by a long member such as piping. On a front surface of the main body 3, a front recess 9 is provided concentrically around the hole 7. The front recess 9 is a portion where a lid portion 5 is attached. On a rear surface of the main body 3, at a position corresponding to the front recess 9, a plurality of locking portions are arranged. The locking portions serve as portions for mounting to a wall penetration member. On the rear surface side of the main body 3, a ring-shaped portion 11 is provided. The ring-shaped portion 11 is arranged outward in a radial direction relative to the lid portion 5. At a position more central than the locking portions in the radial direction of the main body 3, the main body 3 is formed in a substantially flat plate shape without forming a cylindrical portion protruding toward the rear side.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a cap member for a wall penetration member for closing a wall penetration member attached to a through hole in a wall portion, and the like.

Background Art

[0002] Conventionally, for example, when installing an air conditioner indoors, in order to drain water from the indoor unit indoors to the outside, it is necessary to insert a drain pipe through a wall portion that divides the outdoors and indoors. In this case, a wall penetration member for inserting the drain pipe is provided in the through hole of the wall portion.

[0003] As such a wall penetration member, for example, a resin pipe, a first plate and a second plate provided substantially perpendicular to the pipe, a screw penetrating the first plate and the second plate, a locking portion screwed to a portion protruding from the second plate side of the screw, and a backstop portion formed in the vicinity of the axis of the screw on the outer periphery of the pipe and restricting the rotation of the locking portion are provided (Patent Document 1).

[0004] In Patent Document 1, when the screw is rotated from the first plate side, the locking portion rotates together with the screw until it contacts the backstop portion, and when the locking portion contacts the backstop portion, the locking portion moves in the axial direction of the screw as the screw rotates. By doing so, the plate-shaped locking portion protrudes to the outer peripheral side of the through hole, and the wall portion can be sandwiched between the first plate and the locking portion.

[0005] At this time, an elastic member and a water-swellable nonwoven fabric are arranged on the back side of the first plate. By arranging the elastic member between the first plate and the wall portion and arranging the water-swellable nonwoven fabric between the inner surface of the through hole and the outer surface of the pipe, it is possible to suppress water from entering from the outside of the wall portion into the indoor side.

Prior Art Documents

Patent Documents

[0006] [Patent Document 1] Japanese Unexamined Patent Application Publication No. 2013-057406 [Summary of the Invention] [Problems to be Solved by the Invention]

[0007] On the other hand, for example, when a new house is built or renovated and an air conditioner is not installed at the time of handing over the house, and the air conditioner is installed at a later date as needed. Even in such a case, by providing a through hole in advance in the installation part of the air conditioner and arranging a wall-penetrating member, when installing the air conditioner, it is not necessary to newly provide a through hole in the wall and install a wall-penetrating member or the like, and the work can be done only by an air conditioner installer.

[0008] However, in such a case, it is necessary to block the insertion hole for piping or the like in the wall-penetrating member. Fig. 9(a) is a schematic view showing a wall-penetrating member 105 installed in a wall portion 101 (outer wall) and a cap member 100 for the wall-penetrating member for closing the same. In the illustrated example, an extension pipe is attached to the rear of the wall-penetrating member 105 and is arranged up to an indoor wall portion (inner wall) not shown in the figure.

[0009] The wall-penetrating member 105 is substantially cylindrical and has an insertion hole 107 into which a long member such as a pipe is inserted. The wall-penetrating member 105 is fixed to a through hole 103 provided in the wall portion 101. Although details are omitted, a water-stop structure is provided between the wall-penetrating member 105 and the through hole 103 to prevent water from entering between the wall-penetrating member 105 and the through hole 103.

[0010] When no piping or the like is inserted through the wall-penetrating member 105, a cap member 100 for the wall-penetrating member is used to block the insertion hole 107. The cap member 100 for the wall-penetrating member consists of a main body portion 109 and a lid portion 111. The main body portion 109 is provided with a cylindrical portion 113 that is open at both ends on the back side (the side of the wall-penetrating member 105). That is, the main body portion 109 is open in the front-rear direction. The front end portion (the left side in the figure) of the cylindrical portion 113 is formed to have a diameter that expands in the radial direction, and the outer edge portion of the main body portion 109 is bent substantially perpendicularly to the rear side.

[0011] On the front side (the left side in the figure) of the main body portion 109, the lid portion 111 is screwed on, and the opening on the front side of the cylindrical portion 113 is blocked. Further, locking claws 115 project from the outer peripheral surface of the cylindrical portion 113 at a plurality of locations in the circumferential direction. The locking claws 115 are formed so as to have a diameter that expands toward the front side.

[0012] Fig. 9(b) is a view showing a state in which the cap member 100 for the wall-penetrating member is fixed to the wall-penetrating member 105. With the lid portion 111 fixed to the main body portion 109, the cylindrical portion 113 of the main body portion 109 is inserted into the insertion hole 107 of the wall-penetrating member 105 from the outer surface side (the left side in the figure) of the wall portion 101. At this time, the outer diameter of the cylindrical portion 113 is smaller than the inner diameter of the insertion hole 107 of the wall-penetrating member 105, but the maximum outer diameter of the locking claws 115 is larger than the inner diameter of the insertion hole 107 of the wall-penetrating member 105. For this reason, the cylindrical portion 113 is inserted into the insertion hole 107 with the locking claws 115 being pushed in the central direction due to elastic deformation.

[0013] When the cylindrical portion 113 is completely pushed into the wall-penetrating member 105, a sealing material 117 is disposed between the outer edge portion of the main body portion 109 and the wall portion 101 to perform water stoppage. In this way, in a state where no piping or the like is inserted, the opening of the wall-penetrating member 105 is blocked by the cap member 100 for the wall-penetrating member.

[0014] Next, the process of inserting pipes and the like will be described. First, as shown in Fig. 10(a), the lid portion 111 is removed from the main body portion 109. That is, only the main body portion 109 is attached to the front end portion of the wall portion penetrating member 105. Further, since the front and rear ends of the cylindrical portion 113 of the main body portion 109 are open, the inside and outside of the wall portion 101 communicate with each other through the wall portion penetrating member 105.

[0015] Fig. 10(b) is a diagram showing a state in which the long member 119 is inserted through the wall portion penetrating member 105. When the long member 119 is the drain pipe of the air conditioner, in order to prevent the water discharged from the indoor unit of the air conditioner from flowing back into the indoor unit and causing a failure, it is desirable that the drain pipe be arranged to incline downward as it goes outward so that the water discharged from the indoor unit of the air conditioner can be discharged outside. However, as described above, the main body portion 109 of the cap member 100 for the wall portion penetrating member is inserted into the insertion hole 107 of the wall portion penetrating member 105. For this reason, it becomes difficult to arrange the long member 119 at a sufficient inclination angle due to interference between the long member 119 and the main body portion 109 (cylindrical portion 113).

[0016] Also, when the pipe is not inserted (Fig. 9(b)), if the water tightness between the lid portion 111 and the main body portion 109 is not sufficient, there is a risk that water may enter the inside of the main body portion 109 through the gap between the lid portion 111 and the main body portion 109. In this way, when water enters the inside of the main body portion 109, since the cylindrical portion 113 is inserted into the wall portion penetrating member 105 by a predetermined depth, there is a risk that water may flow through the inside of the cylindrical portion 113 and enter the deep portion of the wall portion penetrating member 105. As a result, there is a possibility that water may enter the indoor side.

[0017] The present invention has been made in view of such problems, and an object thereof is to provide a cap member for a wall portion penetrating member that is easy to install pipes such as drain pipes and has excellent water tightness, and a wall portion through hole closing structure using the same.

Means for Solving the Problems

[0018] In order to achieve the above-described object, a first invention is a cap member for a wall-penetrating member, which is attached to the wall-penetrating member and includes a main body portion having a hole through which a long member penetrates, and a lid portion that closes the hole of the main body portion. On the back side of the main body portion, a locking portion for attachment to the wall-penetrating member is provided. In the radial direction of the main body portion, on the central side of the locking portion of the main body portion, a cylindrical portion protruding to the back side is not formed and is substantially flat. It is a cap member for a wall-penetrating member characterized by this.

[0019] It is desirable that a ring-shaped portion protruding to the back side of the main body portion is formed on the outer peripheral side of the lid portion.

[0020] The lid portion is preferably fixed to the main body portion with a screw, and an O-ring is arranged between the lid portion and the main body portion on the outer peripheral portion of the screw.

[0021] A water-stop member is arranged over the entire circumference on the outer peripheral side of the screw of the lid portion, and it is desirable that the water-stop member is sandwiched between the lid portion and the main body portion.

[0022] The locking portion is preferably formed by bending an elastically deformable plate-like member. In this case, in the vicinity of the tip of the locking portion, it is desirable to have a protruding portion protruding toward the center or outward of the main body portion, and a slanting surface portion that slopes so that the protruding height decreases as it moves away from the protruding portion in each direction.

[0023] According to the first invention, a locking portion for attachment to the wall-penetrating member is provided on the back side of the main body portion. In the radial direction of the main body portion, on the central side of the locking portion of the main body portion, a cylindrical portion protruding to the back side is not formed and is formed in a substantially flat plate shape. That is, there is no cylindrical portion inserted into the wall-penetrating member. For this reason, even if a long body such as a pipe is arranged obliquely in the wall-penetrating member, there is no interference between the long body and the main body portion. Therefore, the main body portion does not interfere with the installation of the long body obliquely.

[0024] Moreover, since there is no cylindrical portion, even if water accidentally enters through the gap between the lid portion and the main body portion, the water will flow downward along the flat main body portion. Therefore, it is possible to prevent water from entering to the back side of the wall portion penetrating member.

[0025] In addition, by forming a ring-shaped portion that protrudes on the back side of the main body portion on the outer peripheral side of the lid portion, it can function as a rib that suppresses deformation of the main body portion. Also, it can function as a sealing material regulating portion when arranging the sealing material.

[0026] In addition, by arranging an O-ring on the outer peripheral portion of the screw of the lid portion and sandwiching the O-ring between the lid portion and the main body portion, it is possible to prevent water from entering through the screw hole of the lid portion.

[0027] In addition, by arranging a water stop member over the entire circumference on the outer peripheral side of the screw of the lid portion and sandwiching the O-ring between the lid portion and the main body portion, it is possible to prevent water from entering from the outer periphery of the lid portion.

[0028] In addition, the locking portion is formed by bending an elastically deformable plate-like member, and is formed in a substantially triangular shape so as to form a protruding portion that protrudes toward the center direction or outward in the vicinity of the tip of the locking portion. When it is necessary to remove the main body portion from the wall portion penetrating member, it is possible to remove it without damaging the attachment portion of the wall portion penetrating member. Note that the fixing force of the main body portion can be adjusted by adjusting the material of the locking portion and the amount of deformation when attached to the wall portion penetrating member.

[0029] A second invention is a closing structure for a wall portion through hole using the cap member for a wall portion penetrating member according to the first invention, including a wall portion penetrating member having an insertion hole through which a long member is inserted and penetrating the wall portion, and on the outer surface side of the wall portion, the cap member for the wall portion penetrating member arranged so as to close the insertion hole of the wall portion penetrating member. On the outer peripheral portion of the insertion hole, a plurality of recesses are formed on the front surface of the wall portion penetrating member, and the locking portion of the cap member for the wall portion penetrating member is inserted into the recesses, and the cap member for the wall portion penetrating member is fixed to the wall portion penetrating member. It is a wall portion through hole closing structure characterized by this.

[0030] On the outer peripheral side of the lid portion, a ring-shaped portion protruding toward the back side of the main body portion is formed, and a sealing material is preferably filled in a region having a substantially rectangular cross section surrounded by the vicinity of the outer edge portion of the main body portion protruding to the outer peripheral side of the ring-shaped portion, the ring-shaped portion, and the outer surface of the wall portion.

[0031] A drainage portion where the sealing material is not disposed may be provided below the cap member for the wall portion penetrating member in a state where the wall portion penetrating member is installed on the wall portion.

[0032] A gap may be formed between the back surface of the main body portion and the front surface of the wall portion penetrating member.

[0033] According to the second invention, since the locking portion of the cap member for the wall portion penetrating member is inserted into the recess provided on the outer peripheral portion of the insertion hole of the wall portion penetrating member, a part of the main body portion is not inserted into the insertion hole, and the cap member for the wall portion penetrating member can be attached to the wall portion penetrating member. For this reason, a part of the insertion hole of the wall portion penetrating member is not blocked. Therefore, the operation of removing the lid portion and installing a long member such as a pipe becomes easy.

[0034] Also, on the outer peripheral side of the lid portion, a ring-shaped portion protruding toward the back side of the main body portion is formed, and by filling a sealing material in a region surrounded by the vicinity of the outer edge portion of the main body portion protruding to the outer peripheral side of the ring-shaped portion, the ring-shaped portion, and the outer surface of the wall portion, the cross-sectional shape of the region of the filled portion of the sealing material can be made substantially rectangular. In this way, by making the filling form of the sealing material substantially rectangular, the sealing material is not exposed on the front side, and the state where the sealing material is pressed against the front surface of the wall portion is maintained, and higher water tightness can be ensured.

[0035] Also, by providing a drainage portion where the sealing material is not disposed below the cap member for the wall portion penetrating member in a state where the wall portion penetrating member is installed on the wall portion, even if water infiltrates from the gap between the lid portion and the main body portion, the water can be discharged to the outside from the lower drainage portion.

[0036] Further, by forming a gap between the rear surface of the main body portion and the front surface of the wall penetration member, it is possible to suppress water flowing down along the rear surface of the main body portion from entering the inside of the wall penetration member.

Advantages of the Invention

[0037] According to the present invention, it is possible to provide a cap member for a wall penetration member that is easy to install piping such as a drain pipe and has excellent water stoppage performance, and a wall penetration hole closing structure using the same.

Brief Description of the Drawings

[0038]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Embodiments for Carrying Out the Invention

[0039] Hereinafter, the cap member for the wall penetration member according to the present invention will be described. FIG. 1 is an exploded perspective view of the cap member 1 for the wall penetration member. The cap member 1 for the wall penetration member is a cap member for the wall penetration member, and is composed of a main body part 3, a lid part 5, etc.

[0040] The main body part 3 is, for example, a member made of metal, and is attached to and used with the wall penetration member. The main body part 3 has a substantially disk shape, and a circular hole 7 through which a long member such as a pipe penetrates is provided at the central part. On the front surface of the main body part 3, a front concave part 9 is provided concentrically with the hole 7 around the hole 7 (including the formation part of the hole 7). The front concave part 9 is a part that is slightly recessed backward with respect to the outer peripheral part of the main body part 3 (front concave part 9) on the front surface side of the main body part 3, and is a part to which the lid part 5 is attached. Note that the side where the lid part 5 of the main body part 3 is arranged (the front side of the paper surface) is defined as the front surface side, and the opposite side (the back side of the paper surface) is defined as the back surface side.

[0041] A plurality of screw holes 13 are provided in the front concave part 9. The screw holes 13 are parts where screws 14 for fixing the lid part 5 described later are screwed. The screw holes 13 are formed, for example, so as to protrude from the front side to the back side by burring, and are subjected to female screw processing.

[0042] As described above, the lid part 5 is arranged so as to fit into the front concave part 9 of the main body part 3, and the lid part 5 can be fixed to the main body part 3 by screwing the screw 14 into the screw hole 13 of the main body part 3. That is, the screw (screw through hole not shown) of the lid part 5 is formed at a position corresponding to the screw hole 13 of the main body part 3. By attaching the lid part 5 to the main body part 3, the hole 7 of the main body part 3 can be closed.

[0043] Fig. 2(a) is a rear-side perspective view of the main body 3. On the rear side of the main body 3, at a position corresponding to the front concave portion 9, a plurality of locking portions 19 are arranged. In the illustrated example, a pair of locking portions 19 are arranged on the outer peripheral side of the hole 7 and at circumferential positions different from those of the screw holes 13, facing each other with the hole 7 therebetween. The locking portion 19 serves as a portion for attachment to the wall portion penetrating member. Note that the position and number of the locking portions 19 are not limited to the illustrated example.

[0044] Fig. 2(b) is a cross-sectional view of the locking portion 19. The locking portion 19 is formed by bending an elastically deformable plate-like member. More specifically, the plate-like member protrudes rearward (upward in Fig. 2(b)) of the main body 3, is bent slightly (obtuse angle) in the central direction (right side in Fig. 2(b)) near the tip, and at its tip, the plate-like member is bent (acute angle) so as to be folded back in the same direction, and at its tip, the plate-like member is bent slightly (obtuse angle) in the same direction.

[0045] That is, near the tip of the locking portion 19, a protruding portion 19a protruding in the central direction of the main body 3 (hole 7) is provided, and inclined surfaces 19b that gradually incline outward in the radial direction are formed as they separate from the protruding portion 19a in respective directions (vertical direction in the figure, i.e., the axial direction of the hole 7). In this way, near the tip of the locking portion 19, the plate-like member is bent into a substantially triangular shape (substantially triangular shape formed by the respective ends of the protruding portion 19a and the inclined surfaces 19b) so as to protrude in the central direction of the main body 3. Note that the form of the locking portion 19 is not limited to the illustrated example, but it may have a shape that can be deformed by a spring force in a direction perpendicular to the standing direction from the main body 3 (vertical direction in Fig. 2(b)) (horizontal direction in Fig. 2(b)), and the tip of the plate-like member may be bent so as not to face the central direction (right direction in the figure). Also, in the illustrated example, the protruding portion 19a protrudes in the central direction of the main body 3, but it may protrude in the opposite direction, i.e., outward of the main body 3. In this case, inclined surfaces 19b may be formed so that the protruding height gradually decreases as they separate from the protruding portion 19a in respective directions (vertical direction in the figure, i.e., the axial direction of the hole 7).

[0046] As shown in FIG. 2(a), a ring-shaped portion 11 is provided on the back side of the main body portion 3. The ring-shaped portion 11 is formed in a substantially cylindrical shape so as to project on the back side of the main body portion 3. The ring-shaped portion 11 is arranged concentrically with the hole 7 and on the outer peripheral side of the formation range of the front concave portion 9. That is, the ring-shaped portion 11 is arranged on the outer peripheral side of the lid portion 5. In this way, on the radial direction of the main body portion 3, on the center side of the locking portion 19 of the main body portion 3, a cylindrical portion projecting on the back side is not formed and is formed in a substantially flat plate shape.

[0047] Note that the outer peripheral portion of the main body portion 3 projects to the outer peripheral side of the ring-shaped portion 11 to form a flange portion 17. That is, the ring-shaped portion 11 is not arranged at the outer edge portion of the main body portion 3, but is arranged at a position slightly offset to the center side from the outer edge portion.

[0048] Note that the main body portion 3 can be formed, for example, by configuring each portion with a plate-shaped member and joining the locking portion 19 and the ring-shaped portion 11 to the disk-shaped portion of the main body portion 3 by spot welding or the like.

[0049] FIG. 3 is a rear perspective view of the lid portion 5. A water stop member 15 is arranged over the entire circumference on the outer peripheral side of the screw 14 of the lid portion 5. The water stop member 15 is a deformable member such as made of urethane foam, for example. Also, an O-ring 21 made of rubber is arranged on the outer periphery of the screw 14 attached to the lid portion 5.

[0050] Next, the fixed state of the main body portion 3 and the lid portion 5 will be described. FIG. 4(a) is an exploded cross-sectional view of the main body portion 3 and the lid portion 5, and FIG. 4(b) is an enlarged view of part B in FIG. 4(a). Note that in FIGS. 4 to 5, cross-sectional views of the main body portion 3 and the lid portion 5 in the cross-section along the line A-A in FIG. 1 are shown.

[0051] As described above, an annular water stop member 15 is arranged near the edge on the back side of the lid portion 5. Also, on the center side of the water stop member 15, an O-ring 21 is arranged on the outer periphery of the screw 14 at the portion where the screw 14 is inserted.

[0052] Fig. 5(a) is a cross-sectional view of the state where the lid portion 5 is fixed to the main body portion 3, and Fig. 5(b) is an enlarged view of part C in Fig. 5(a). The lid portion 5 is arranged to fit into the front recess 9 of the main body portion 3, and the lid portion 5 is fixed to the main body portion 3 by screwing the screw 14 into the screw hole 13. Here, as described above, since the screw hole 13 is formed to protrude rearward of the main body portion 3 by burring, a sufficient thread (screw engagement length) for screwing with the screw 14 can be formed.

[0053] When the lid portion 5 is arranged in the front recess 9 of the main body portion 3, the O-ring arranged on the outer peripheral portion of the screw 14 is arranged between the lid portion 5 and the main body portion 3, and the water stop member 15 is sandwiched between the lid portion 5 and the main body portion 3 on the outer peripheral side in the radial direction with respect to the screw 14. Therefore, when the screw 14 is tightened, the water stop member 15 is deformed and closely adheres to the back surface of the lid portion 5 and the front surface of the main body portion 3, so that the water tightness at the outer peripheral portion of the lid portion 5 can be ensured. Similarly, the O-ring 21 closely adheres to the back surface of the lid portion 5, the front surface of the main body portion 3, and the outer peripheral surface of the screw 14, so that the water tightness in the through hole of the screw 14 can be ensured. In this way, the water tightness between the lid portion 5 and the main body portion 3 can be ensured. Further, by providing the O-ring 21 on the outer peripheral portion of the screw 14, it is possible to suppress the screw 14 from falling off the lid portion 5 when the lid portion 5 is removed.

[0054] Next, the closing structure of the wall penetration member using the cap member 1 for the wall penetration member will be described. Fig. 6(a) is a front view of the wall penetration member 23 (viewed from the outer surface side of the wall portion 28), and Fig. 6(b) is a cross-sectional view taken along line D-D in Fig. 6(a).

[0055] The wall penetration member 23 is arranged in the through hole 29 formed in the wall portion 28 (outer wall) and penetrates the wall portion 28. The wall penetration member 23 has a substantially cylindrical shape having an insertion hole 27 through which a long member is inserted, and the wall penetration member 23 is fixed in a state where water tightness is ensured with respect to the wall portion 28. Note that a conventionally known wall penetration member 23 can be used, and the fixing structure to the wall portion 28, the cross-sectional shape, the water stop structure, etc. are not particularly limited as long as they have a fixing portion with the locking portion described later.

[0056] In the illustrated example, the wall-penetrating member 23 is made of resin, and due to its moldability, a cutout portion is formed in the portion that becomes the thick portion. For this reason, a plurality of recesses 25 as cutout portions are formed on the front side of the wall-penetrating member 23. In the illustrated example, the recesses 25 are formed at predetermined intervals around the insertion hole 27 on the outer peripheral side in the radial direction of the insertion hole 27. The recess 25 opens to the front side and has a predetermined depth.

[0057] FIG. 7(a) is a view showing a state before attaching the cap member 1 for the wall-penetrating member to the wall-penetrating member 23, and FIG. 7(b) is a view showing the wall-penetrating member closing structure 30 in which the cap member 1 for the wall-penetrating member is attached to the wall-penetrating member 23.

[0058] As described above, the locking portion 19 protrudes on the back side of the cap member 1 for the wall-penetrating member. The locking portion 19 is disposed at a position corresponding to the recess 25 of the wall-penetrating member 23. By inserting the locking portion 19 into the recess 25, the cap member 1 for the wall-penetrating member can be attached to the wall-penetrating member 23. At this time, as described above, the locking portion 19 is elastically deformable, and by inserting it into the recess 25, the protruding portion 19a (see FIG. 2(b)) of the locking portion 19 is pressed against the inner surface of the recess 25 and deformed, and the wall-penetrating member 23 is fixed by being sandwiched between the pair of locking portions 19.

[0059] As described above, the cap member 1 for the wall-penetrating member has a ring-shaped portion 11 that protrudes on the back side of the main body portion 3 on the outer peripheral side of the lid portion 5. In this case, the tip of the ring-shaped portion 11 is arranged to contact the outer peripheral surface of the wall portion 28. Further, a flange portion 17 projects on the outer peripheral side of the ring-shaped portion 11. A sealing material 31 is filled in the region surrounded by the flange portion 17 near the outer edge portion of the main body portion 3, the ring-shaped portion 11, and the outer surface of the wall portion 28.

[0060] FIG. 8(a) is an enlarged view of part F in FIG. 7(b). Since the ring-shaped part 11 and the flange part 17 are substantially orthogonal, the region surrounded by the back surface of the flange part 17, the outer surface of the ring-shaped part 11, and the outer surface of the wall part 28 has a substantially rectangular cross-section. By filling the sealing material 31 in this rectangular region, the sealing material 31 can be more reliably brought into close contact with the surface of the wall part 28 to enhance the water-stopping property. For example, since the flange part 17 is formed substantially parallel to the outer surface of the wall part 28, the effect of pressing the sealing material 31 against the outer surface side of the wall part 28 can be obtained during and after filling, and the exposure of the sealing material 31 on the front surface can be suppressed after filling.

[0061] On the other hand, FIG. 8(b) is a view (an enlarged view of part G in FIG. 9(b)) showing a state in which a sealing material 117 is applied to a conventional cap member. A flange part 17 such as that of the wall-penetrating member cap part 1 is not provided at the outer edge part of the main body part 109 of the conventional cap member. For this reason, the sealing material 117 is applied in a substantially triangular cross-sectional shape so as to span between the edge part of the main body part 109 and the wall part 101. Therefore, there is a risk that the application amount of the sealing material 117 is insufficient during application, or that the sealing material 117 peels off after application. In addition, since the sealing material 117 is exposed on the front surface side, there is a risk of damage to the sealing material.

[0062] Further, FIG. 8(c) is a view showing a method of sticking a backup material 121 to the back surface of the main body part 109 and floating the bent part from the wall part 101 in order to enhance the water-stopping property with respect to the conventional cap member. By doing so, it is possible to suppress the insufficient application amount of the sealing material 117 and suppress the peeling of the sealing material 117. However, since the main body part 109 is installed in a state of being floated from the wall part 101, there is a risk that the main body part 109 may tilt, and it takes time to adjust the main body part 109 to be perpendicular to the wall part 101.

[0063] As described above, the lid portion 5 is made water-tight with respect to the main body portion 3 by the water-stop member 15 and the O-ring 21. However, due to insufficient tightening force or inclination of the lid portion 5, water may enter through the gap between the lid portion 5 and the main body portion 3. However, even in this case, since the cylindrical portion is not inserted into the insertion hole 27 of the wall portion penetrating member 23 as in the prior art, water does not flow through the cylindrical portion and reach the back of the wall portion penetrating member 23. Further, as shown in the drawing, a gap is formed between the back side of the main body portion 3 and the front surface of the wall portion penetrating member 23 in a state where the main body portion 3 is attached to the wall portion penetrating member 23. Thus, since a gap is formed between the back surface of the main body portion 3 and the front surface of the wall portion penetrating member 23, the infiltrated water flows down along the back surface of the main body portion 3 and does not enter the inside of the wall portion penetrating member 23.

[0064] In addition, in order to discharge the water that has flowed downwards, a drainage portion where the sealing material 31 is not arranged may be provided below the wall portion penetrating member cap member 1 in a state where it is installed on the wall portion 28. For example, after filling the entire circumference of the main body portion 3 with the sealing material 31, a part of the sealing material 31 below may be removed (for example, a cut may be made).

[0065] Thus, in a state where no long member is arranged in the wall portion penetrating member 23, the hole 7 of the main body portion 3 of the wall portion penetrating member cap member 1 is closed by the lid portion 5, and on the outer surface side of the wall portion 28, the wall portion penetrating member cap member 1 is arranged so as to close the insertion hole 27 of the wall portion penetrating member 23. Therefore, a wall portion penetrating member closing structure 30 in which the wall portion penetrating member 23 is completely closed can be obtained.

[0066] Further, when inserting a pipe or the like through the wall portion penetrating member 23, the same operation can be performed by removing the lid portion 5 as in the prior art. At this time, if the inner diameter of the hole 7 of the main body portion 3 is equal to or larger than the inner diameter of the insertion hole 27 of the wall portion penetrating member 23, the entire inner diameter of the insertion hole 27 of the wall portion penetrating member 23 can be used for installing a pipe or the like. Therefore, for example, it becomes easy to install a drain pipe or the like obliquely.

[0067] As described above, according to the present embodiment, by providing the locking portion 19 on the back side of the main body portion 3 and inserting the locking portion 19 into the recess 25 formed on the outer peripheral portion of the insertion hole 27 of the wall penetration member 23, the cap member 1 for the wall penetration member is fixed to the wall penetration member 23. Therefore, it is not necessary to insert a cylindrical portion into the insertion hole 27 of the wall penetration member 23 as in the conventional case. For this reason, the internal space of the insertion hole 27 can be fully utilized, and laying of piping or the like is easy.

[0068] Further, since there is no cylindrical portion inside the lid portion 5 of the main body portion 3, even if water temporarily enters from the gap between the lid portion 5 and the main body portion 3, the water can flow downward along the flat main body portion 3, and it is possible to suppress the water from entering up to the back side of the wall penetration member 23. At this time, by providing a gap between the main body portion 3 and the wall penetration member 23, the water can be efficiently made to flow downward of the main body portion 3. Also, by providing a discharge portion in a part of the lower sealing material 31, the water can be discharged to the outside.

[0069] Further, by forming the locking portion 19 by bending an elastically deformable plate-like member into a shape such that the tip of the plate-like member does not contact the wall penetration member 23, even if it becomes necessary to remove the main body portion 3, the wall penetration member 23 will not be damaged. For example, in the conventional structure as shown in Fig. 9(b), when trying to pull out the main body portion 109 from the insertion hole 107, the tip of the locking claw 115 bites into the inner surface of the insertion hole 107, thus damaging the inner surface. However, such damage is suppressed in the locking portion 19.

[0070] Also, on the outer peripheral side rather than the lid portion 5, a ring-shaped portion 11 protruding from the back side of the main body portion 3 is formed, and the sealing material 31 is filled in the region surrounded by the back surface of the flange portion 17 protruding to the outer peripheral side of the ring-shaped portion 11, the outer surface of the ring-shaped portion 11, and the outer surface of the wall portion 28, so that the cross-sectional shape of the region of the filled portion of the sealing material 31 can be made substantially rectangular. In this way, by making the filling form of the sealing material 31 substantially rectangular, higher water stoppage performance can be ensured as compared with the case of a conventional sealing material having a substantially triangular cross section.

[0071] In addition, since the main body 3 does not need to be arranged floating from the wall portion 28 at regular intervals while taking into account the unevenness of the outer surface of the wall portion 28, the workability is good, and the main body 3 is not installed inclined.

[0072] Although the embodiments of the present invention have been described with reference to the accompanying drawings, the technical scope of the present invention is not limited by the above-described embodiments. It is obvious that those skilled in the art can conceive of various modification examples or correction examples within the scope of the technical idea described in the claims, and it is naturally understood that those also belong to the technical scope of the present invention.

Explanation of reference numerals

[0073] 1………Cap member for wall penetration member 3………Main body 5………Cover 7………Hole 9………Front recess 11……Ring-shaped part 13………Threaded hole 14………Screw 15………Sealing member 17………Flange part 19………Locking part 19a………Protrusion 19b………Slant surface 21………O-ring 23………Wall penetration member 25………Recess 27………Insertion hole 28………Wall 29………Through hole 30………Wall penetration member closing structure 31………Sealing material 100………Cap member for wall penetration member 101………Wall 103………Through hole 105………Wall penetration member 107………Insertion hole 109………Main body 111………Cover 113………Cylindrical part 115………Locking claw 117………Sealing material 119………Long body 121………Backup material

Claims

1. A cap member for a wall-penetrating member, comprising: a main body portion attached to the wall-penetrating member and having a hole through which a long member penetrates; a lid portion closing the hole of the main body portion; and a locking portion for attachment to the wall-penetrating member is provided on the back side of the main body portion; a cap member for a wall-penetrating member, characterized in that, in the radial direction of the main body portion, a cylindrical portion protruding to the back side is not formed on the central side of the locking portion of the main body portion, and the main body portion is substantially flat.

2. The cap member for a wall-penetrating member according to claim 1, wherein a ring-shaped portion protruding to the back side of the main body portion is formed on the outer peripheral side of the lid portion.

3. The lid portion is fixed to the main body portion by a screw, and an O-ring is disposed between the lid portion and the main body portion on the outer peripheral portion of the screw. The cap member for a wall-penetrating member according to claim 1 is characterized in that.

4. A water-stop member is disposed over the entire circumference on the outer peripheral side of the screw of the lid portion, and the cap member for a wall-penetrating member according to claim 3, wherein the water-stop member is sandwiched between the lid portion and the main body portion.

5. The locking portion is formed by bending an elastically deformable plate-like member. The cap member for a wall-penetrating member according to claim 1 is characterized in that.

6. Near the tip of the locking portion, there are a protruding portion protruding toward the center or outward of the main body portion, and a slanted surface portion that slopes so that the protruding height gradually decreases as it moves away from the protruding portion in each direction. The cap member for a wall-penetrating member according to claim 5 is characterized in that.

7. A closing structure for a wall-penetrating hole using the cap member for a wall-penetrating member according to any one of claims 1 to 6, comprising: a wall-penetrating member having an insertion hole that penetrates a wall portion and through which a long member is inserted; the cap member for a wall-penetrating member disposed on the outer surface side of the wall portion so as to close the insertion hole of the wall-penetrating member; and a plurality of recesses are formed on the front surface of the wall-penetrating member on the outer peripheral portion of the hole; A closing structure for a wall-penetrating hole, characterized in that the locking portion of the cap member for a wall-penetrating member is inserted into the recess, and the cap member for a wall-penetrating member is fixed to the wall-penetrating member.

8. A ring-shaped portion protruding to the back side of the main body portion is formed on the outer peripheral side of the lid portion. The wall through-hole closing structure according to claim 7, wherein a sealing material is filled in a region having a substantially rectangular cross-section surrounded by the vicinity of the outer edge of the main body portion projecting to the outer peripheral side of the ring-shaped portion, the ring-shaped portion, and the outer surface of the wall portion.

9. The wall through-hole closing structure according to claim 8, wherein a drainage portion where the sealing material is not disposed is provided below the cap member for the wall through-hole member in a state where the wall through-hole member is installed on the wall portion.

10. The wall through-hole closing structure according to claim 9, wherein a gap is formed between the rear surface of the main body portion and the front surface of the wall through-hole member.

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