JP3435090B2 - Closure support - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a structure (for example,
An obstruction material (having a thermal expansion property) that is loaded into the space around the insertion portion of the long body (for example, air conditioning pipe, water supply / drainage pipe, electric wire, etc.) in the long body insertion through hole of the floor, wall, ceiling, etc. An annular support body having a support part capable of receiving and supporting fire-resistant putty, mortar, concrete, etc. on the front side in the loading direction and a locking part capable of locking around the opening of the through hole. The present invention relates to an occluding member support tool.

[0002]

2. Description of the Related Art Conventionally, as this kind of occluding material support,
As shown in FIG. 8, even when the elongated body P is inserted and installed in the through hole H in advance, the occluding material support tool 3 is provided.
There is one in which the support main body 31 is divided into two along the circumferential direction so that 0 can be installed later, and the support is provided so as to sandwich the elongated body P from both sides above the through hole H. The divided main bodies 31A and 31B of the main body 31 are connected together, and the support main body 31 is shifted in the axial direction of the through hole H so that the support portion 7 enters the through hole H in this state, and the locking is performed. The portion 9 is installed by being locked around the opening 8 of the through hole H.

[0003]

According to the above-mentioned conventional obturator support, the through hole H is required for installation as described above.
Since the two divided main bodies 31A and 31B are aligned above each other, a space therefor is required above the through hole H. For example, as shown in FIG. When there is an obstacle around the opening 8 (for example, a branch of a long body, another long body, etc.), it becomes difficult to fit the two divided main bodies 31A and 31B to the through hole H. There is a problem that installation becomes difficult. In addition, since the support body is formed by connecting both separate bodies of separate members, it is troublesome to install, and the number of parts is large and handling of transportation and storage is troublesome. .

Therefore, the object of the present invention is to solve the above-mentioned problems and to install the elongated body even if there is an obstacle around the opening in retrofitting the elongated body through the through hole. The purpose of the present invention is to provide an occluding material support tool that is easy to install and handle.

[0005]

The characteristic configuration of the invention of claim 1 is, as illustrated in FIGS. 3 to 7, a portion through which the elongated body P is inserted in the through hole H for inserting the elongated body of the structure S. A support portion 7 that can receive and support the blocking member 1 loaded in the surrounding space V on the front side in the loading direction, and a locking portion 9 that can lock around the opening 8 of the through hole H. In the occluding material support tool provided with the annular support tool body G, the support tool body G is composed of a plurality of divided members G1 and G2 connected in the circumferential direction, and the divided members G1 and G2 are At least one of the divided members G2 is formed to be retractable along the circumferential direction of the support body G. According to the characterizing feature of the invention of claim 1, the notch is formed in a part of the annular support body G by retracting the retractable split member along the circumferential direction of the support body. The support body can be C-shaped. Therefore, at the time of installation in the through hole, it is possible to place the support body in a posture in which the obstacle is located in the cutout portion with the split member retracted, and insert the support body as it is into the through hole. Becomes Then, after being inserted into the through hole, the supporting member main body becomes annular by returning (projecting) the dividing member to the original position along the circumferential direction of the supporting member main body G, and the blocking member is provided with the through hole. It can be received by the support part inside,
It is possible to install in a state where the locking portion is locked in a wide range of the entire circumference of the opening of the through hole. This is because the extending and retracting direction of the dividing member is along the circumferential direction of the support body, so that when the supporting member is inserted into the through hole or when the dividing member is returned to the original position, the penetrating This can be performed in a state in which the peripheral wall of the hole and the dividing member are less likely to interfere with each other, and the installation work can be performed extremely efficiently. For example, as a comparative example,
Even in the case where the support body is divided into two in the circumferential direction, and one end of each of the divided members is hinge-connected so that they can swing together, in this case, Along with the swinging operation of the dividing members, the supporting portions that need to be inserted into the through holes also spread by the swinging operation, and as a result, they cannot be installed when there are obstacles around the openings. Thus, according to the occluding material support of the present invention, even if there is an obstacle around the opening of the through hole, the notch portion is temporarily formed in the support body, A state in which the support body can be inserted into the through hole while avoiding the obstacle, and the support body is returned so as to close the notch after insertion, and the locking portion extends along the entire circumference around the opening. Can be installed in Therefore, regardless of the presence or absence of an obstacle around the opening of the through hole, the occluding material can be stably and efficiently installed in a state in which it can be supported in the through hole.

As shown in FIG. 5, the characterizing feature of the invention of claim 2 is that the at least one dividing member is maximally pulled.
Dimension between ends of notch formed when retracted (max.
The important notch dimension) is set to be equal to or larger than the outer diameter dimension of the elongated body P. According to the characterizing feature of the invention of claim 2, in addition to being able to achieve the effect of the invention of claim 1, the maximum notch dimension is set to be equal to or greater than the outer diameter dimension of the elongated body. Thus, when the obstacle around the opening is a branch portion provided in a part of a long body, the notch portion can be worked in a state in which it is widened beyond a size that allows the branch portion to pass, and the branch It becomes possible to more reliably carry out the installation work in a state where the part (a part of the long body) is passed.

As shown in FIGS. 3 to 7, the characterizing feature of the invention of claim 3 is that the support body G is expanded and contracted in the circumferential direction at positions facing each other along the radial direction of the support body G. Each is provided with a free slide mechanism L1. According to the characterizing feature of the invention of claim 3, in addition to being able to achieve the effect of the invention of claim 1 or 2, the corresponding supporting member main body can be obtained by sliding the corresponding dividing members by the slide mechanism. The outer diameter of the through hole can be increased or decreased and can be set according to the inner diameter of the through hole. Therefore, it becomes possible to install the through holes having various inner diameters, and the dimensional adaptability and versatility are improved.

As mentioned above, the reference numerals are given for the sake of convenience in comparison with the drawings, but the present invention is not limited to the constructions of the accompanying drawings by the entry.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the parts indicated by the same reference numerals as those in the conventional example indicate the same or corresponding parts.

This embodiment is an embodiment of the occluding member support of the present invention. As shown in FIG. 2, a drain pipe insertion through hole (a long body insertion penetration) of a slab (an example of a structure) S is formed. An example of a hole) A occluder support capable of supporting a thermally expandable fireproof putty (an example of an occluder) 1 that is loaded in a peripheral space V of an insertion portion of a drainage pipe (an example of a long body) P in H An example in which the tool 2 is installed in the through hole H to form the refractory penetration part 3 will be described.

As shown in FIG. 1, the slab S is made of reinforced concrete, and a floor plate 4 is installed above the slab S with a space. And the floor board 4
In the underfloor space 5 between the slab S and the slab S, the first drainage pipe P1 from the drainage device (for example, washbasin, sink, etc.) 6 installed on the floorboard 4 is arranged so as to have a gradient necessary as a drainage pipe. I am doing it. Then, the first drainage pipe P1 is communicatively connected to a second drainage pipe P2 vertically passing through the through hole H of the slab S via a branch joint P3. Therefore, in the through hole H, a part of the branch joint P3 and the second drain pipe P2 are provided.
Part of is located. The lower surface of the outer peripheral surface of the branch joint P3 on the first drain pipe P1 side is the upper surface of the slab S,
It is arranged with a slight gap. Therefore, the height of the underfloor space 5 is set to a minimum value within a range in which the minimum gradient required for the function of the first drain pipe P1 can be secured. Incidentally, the first drain pipe P1, the second drain pipe P2, and the branch joint P3 are collectively referred to as the drain pipe P. Further, since each drain pipe P uses a pipe made of vinyl chloride, when a fire occurs on one of the upper and lower floors with the slab in between, there is a concern that the fire will burn from the burnt hole of the pipe. In order to prevent this, the surrounding space V is filled with a refractory putty 1 having a thermal expansion property. That is, the fireproof putty 1 expands due to the heat of fire to close the burnt hole of the pipe to prevent burning.

The obturator support 2 will be described. As shown in FIGS. 2 to 5, the occluding member support tool 2 has the through hole H.
A supporting portion 7 that can receive the refractory putty 1 loaded therein at the front side in the loading direction, a locking portion 9 that can be locked around the opening 8 of the through hole H, and the supporting portion 7 It is constituted by a support body G including a connecting portion 10 for integrally connecting the lock portion 9 and the locking portion 9. The support portion 7 is formed of a plate-like member so as to be located between the inner peripheral wall of the through hole H and the outer periphery of the drain pipe P in the state of being arranged in the through hole H, and the plan view shape is It is formed in an arc plate shape along the peripheral wall of the through hole.
The connecting portion 10 is formed in a curved shape along the peripheral wall of the through hole H, and is provided with a plurality of windows 10a (see FIG. 3). This window portion 10a can improve the hermeticity of the through hole H by directly contacting the peripheral wall of the through hole H through the window portion 10a when the refractory putty 1 arranged in the surrounding space V thermally expands. It is provided. The support portion 7 is integrally provided on the lower end portion of the connecting portion 10, and the locking portion 9 is integrally provided on the upper end portion of the connecting portion 10.
When the locking portion 9 has a brim shape along the peripheral edge of the opening 8 and is installed in the through hole H, normally,
The opening 8 is formed in an annular shape along the entire circumference (see FIGS. 4 and 5).

Further, as shown in FIGS. 3 and 4, the support tool main body G includes two first main bodies (corresponding to dividing members) which are slidably fitted relative to each other around the longitudinal axis of the support tool main body G. G1 and a second main body (corresponding to a dividing member) G2,
Each of the first main body G1 and the second main body G2 is provided with the supporting portion 7, the engaging portion 9, and the connecting portion 10. Then, the second main body G2 is assembled so as to overlap the first main body G1.

The first main body G1 includes the support portion 7,
The first support portion 7A set in a range of about 180 degrees around the vertical axis of the support body G, and the first support portion 7A set in a range of about 180 degrees around the vertical axis in the locking portion 9. One locking part 9A
And a first connecting portion 10A connecting them together. In addition, the first support portion 7A is the first connecting portion 10
With the partition surface portion 11 protruding from A toward the vertical axis,
It is partitioned into a short support portion 7Aa set in a range of about 50 degrees around the vertical axis and a long support section 7Ab set in a range of about 130 degrees around the vertical axis. As described above, the first connecting portion 10A has the partition surface portions 11 formed at the left and right ends of the short support portion 7Aa. An outer peripheral edge portion of the first locking portion 9A is bent downward, and a lower end portion of the bending portion 9a is in contact with an upper surface of the slab S in a state in which the obstruction material support tool 2 is installed in the through hole H. It hits and locks. Further, a screw 12 having a diameter-expanding head is attached to one end of the first locking portion 9A in the longitudinal direction. The screws 12 are the first main body G1 and the second main body G2.
It has a function of connecting the first main body G1 and the second main body G2 and defining the start point and the end point of the relative slide position between the first main body G1 and the second main body G2. In addition, at an intermediate portion in the longitudinal direction of the first locking portion 9A, the screw 12 is spaced apart,
A screw insertion hole 13 for fixing the blocker support tool 2 to the slab with a screw is formed, and the blocker support tool 2 can be fixed to the slab with a screw by using the screw insertion hole 13. .

The second main body G2 is a part of the support portion 7,
The second support portion 7B set in the range of about 130 degrees around the vertical axis of the support body G, and the second support portion 7B set in the range of about 190 degrees around the vertical axis of the locking portion 9 Two locking parts 9B
And a second connecting portion 10B connecting them. In addition, the second support portion 7B is the second connecting portion 10
The partition surface portions 14 projecting from the left and right ends of B toward the vertical axis are formed as one supporting portion. The second connecting portion 10B is, as described above, the second supporting portion 7B.
Partition surfaces 14 are formed so as to partition the left and right ends of the partition surface. Like the first locking portion 9B, the second locking portion 9B is provided with a bent portion 9b by bending the outer peripheral edge portion downward, and in a state of being overlapped on the first locking portion 9B, First locking part 9
It has the same height as the lower end of the bent portion 9a of B, and is configured so as to come into contact with the upper surface of the slab S to be locked. Further, the slit 1 is formed along the longitudinal direction in the second locking portion 9B.
5 is formed, and the screw portion of the screw 12 of the first locking portion 9A is provided so as to penetrate the slit 15. Therefore, the bent portions 9 of both the locking portions 9A and 9B are
The a and 9b contact each other to serve as slide guides for each other, and the screw 12 penetrates into the slit 15 to serve as slide guides.
It becomes possible to relatively slide the first body G1 and the second body G2 along the longitudinal direction within a predetermined range.
That is, considering the first body G1 as a reference, the second body G2
Is formed so as to be able to extend and retract along the circumferential direction of the support body G, and when the second body G2 is projected to the maximum extent, the second locking portion 9
The protruding end portion of B can contact the first locking portion 9A to form the annular locking portion 9, while the second main body G2 can be retracted to the maximum extent to form the C annular locking portion 9. can do. When the overlap between the two main bodies G1 and G2 is maximized, the locking portion 9 has a C ring shape, and the opening size (notch size) between the ends at that time is the branch joint. It is set to be larger than the outer diameter dimension of P3.
A slide mechanism L is configured by the bent portions 9a and 9b, the slit 15 and the screw 12.

The refractory putty 1 arranged in the surrounding space V will be described. As described above, the refractory putty 1 is made of a refractory substance (main component is an inorganic filler / expansion agent), and has a property of expanding to a volume of about 3 to 4 times when receiving heat, and Occasionally, even if the drain pipe P disappears, the drain hole P fills the through-hole H, so that the through-hole H is blocked. Further, in this embodiment, as shown in FIG.
A sheet-shaped one having a thickness dimension substantially the same as the width dimension of the support portion 7 is used. And fireproof putty 1
Has a shape corresponding to each support portion, and is fitted into the short support portion 7Aa of the first support portion 7A and is provided in the first fireproof putty 1A and the second support portion 7B. The second refractory putty 1B provided in a closed state and the obstruction material support tool 2 are installed in the through hole H, and then the long support portion 7A.
It is composed of an insert refractory putty 1C that is inserted into the putty accommodating space above b. The first refractory putty 1A and the second refractory putty 1
When the sheet-shaped member B is inserted while being curved and deformed between the pair of partition surface portions 11 and the pair of partition surface portions 14, the left and right end surface portions are pressed against the partition surface portions 11 and 14 by the restoring force of the putty. It can be attached while being held in a curved shape. The insert refractory putty 1C is previously fitted into a metal frame F as shown in FIG. 4 and is retained in a curved shape. And
The metal frame F is a lower end surface portion of the insert fireproof putty 1C.
A plurality of hooking portions 16 for hooking to the connecting portion 10 are provided on the upper edge portion of the metal frame F so as to come into contact with substantially the entire side edge portions and a part of the outer peripheral portion. There is.

Next, the procedure for forming the refractory penetration part 3 using the occluding member support tool 2 will be described. [1] A drainage pipe P is installed in the through hole H as shown in FIG. [2] The occluding material support tool 2 is prepared. At this time, the support body G is moved by the slide mechanism L to the first body G1.
The second main body G2 and the second main body G2 are positioned so that the overlap therebetween becomes maximum. That is, a compact state is made in which the cutout dimension between the ends of the locking portion 9 is the largest. Incidentally, a first fire resistant putty 1A and a second fire resistant putty 1B are attached to the short support portion 7Aa of the first support portion 7A and the second support portion 7B, respectively. [3] Insert the occluder supporter 2 in the most compact state into the through hole H (see FIG. 4). That is, the support portion 7 and the connecting portion 10 are set in a state of being located between the peripheral wall of the through hole H and the drain pipe P. [4] The first main body G1 and the second main body G2 are relatively slid in the spreading direction (see FIG. 4) so that the ends of the locking portion 9 come into contact with each other, and the branch joint P3 and the slab S are connected. Place it so that it enters the gap. By this sliding movement, the locking portion 9 becomes annular, and the second refractory putty 1B on the second support portion 7B is fed into the space below the branch joint P3 of the drain pipe P. That is, the branch joint P3 allows the putty to be smoothly positioned even though it is difficult to put the putty. [5] Next, the insertion refractory putty 1C is inserted into the long support portion 7Ab from above. In this state, the long support portion 7
The metal frame F of the insert fireproof putty 1C is in contact with the Ab, and the metal frame hooking portion 16 is hooked on the second connecting portion 10B. Then, the surrounding space V is filled with the fireproof putty 1 over the entire circumference (see FIGS. 4 and 5). [6] The screw 12 is tightened to fix the first main body G1 and the second main body G2, and the occluder supporter 2 is screw-fixed to the slab S using the screw insertion hole 13. [7] If necessary, the recessed portion of the opening 8 is filled with a blind filler (see FIG. 2).

By the above procedure, it becomes possible to easily and efficiently construct the fireproof penetration portion 3 even in a place where a branch pipe exists.

[Other Embodiments] Other embodiments will be described below.

<1> The occluding material support is not limited to the usage mode in which it is installed from above in the through hole of the slab, as described in the previous embodiment. For example, from the lower side to the upper side. It is also possible to take a form of installation for installation or a form of installation for installation laterally with respect to the wall.
Therefore, the structure is not limited to the slab, but may be a wall or a ceiling. Further, the elongated body is not limited to the drain pipe described above, and may be, for example, an air conditioning pipe, a water supply pipe, a pipe such as an electric pipe, or an electric wire. Further, the plugging material is not limited to the fireproof putty described in the previous embodiment, and may be made of mortar or concrete, for example, when the long body itself has fireproof performance. <2> The support body is not limited to the one configured by the two parts (the first body G1 and the second body G2) described in the above embodiment, and may be configured by, for example, three or more members. It may be. Further, the shape, the positional relationship, and the like of each of the supporting portion, the connecting portion, and the locking portion can be changed. Further, in the above-mentioned embodiment, the case where the planar shape is installed in the through hole having a circular shape has been described. However, even when the through hole having a polygonal planar shape is targeted, the shape of each part may be changed according to the through hole. This can be carried out by carrying out, for example, as shown in FIGS. 6 and 7, it is also possible to carry out an occluding material support tool for a rectangular through hole. In the embodiment shown in FIG. 6, the support body G is divided into four along the circumferential direction, and among the respective divided members, the divided members G2 and G4 located on the sides facing each other along the radial direction. , Are formed so as to be retractable along the circumferential direction of the support body G.
The structure for sliding can be the same as that of the previous embodiment or can adopt another form. In short, each of the slide mechanisms L1 is arranged at a position facing each other along the radial direction of the support body G. It is provided separately. In the case of this embodiment, by retreating any of the split members G2 and G4 that can freely move in and out, it is possible to install while intersecting obstacles around the opening 8 as in the previous embodiment. can do. Furthermore, it becomes possible to adjust the lengths of the opposite sides by combining the both slide mechanisms L1, and it is possible to install the slide mechanisms L1 in a state in which they fit perfectly even through holes having different sizes. The slide mechanism L1 can be provided on each side as shown in FIG.

[Brief description of drawings]

[Figure 1] Explanatory diagram showing the installation status of drainage pipes

FIG. 2 is a side view explanatory diagram showing an installation state of an occluding material support tool.

FIG. 3 is an exploded perspective view showing an occluding material support tool.

FIG. 4 is a perspective view showing an occluding material support tool.

FIG. 5 is a partially cutaway perspective view showing an installation state of an occluding material support tool.

FIG. 6 is a top view showing a main part of an occluding material support according to another embodiment.

FIG. 7 is a top view showing a main part of an occluding material support according to another embodiment.

FIG. 8 is a partially cutaway perspective view showing an installation state of a conventional occluding material support tool.

FIG. 9 is an explanatory view showing a state of installation of a conventional occluding material support tool.

[Explanation of symbols]

1 Occlusion material 7 Support 8 openings 9 Locking part G support body G1 split member G2 split member H Long body insertion through hole L1 slide mechanism P long body S structure V Surrounding space

Claims (3)

(57) [Claims] 1. A support portion, which is capable of receiving and supporting an occluding material, which is loaded in the space surrounding the insertion portion of the elongated body, in a through hole for inserting the elongated body of the structure on the front side in the loading direction, An occluding material support tool having an annular support tool main body provided with a locking portion that can be locked around an opening of a through hole, wherein the support tool main body is connected in a circumferential direction. An occluding material support tool comprising a plurality of partition members, and at least one of the partition members is formed to be retractable along the circumferential direction of the support body. 2. The maximum of the at least one dividing member
Dimension between the ends of the notch formed when retired
The occlusive material support according to claim 1, wherein the (maximum notch size) is set to be equal to or larger than the outer diameter size of the elongated body. 3. The occluding material according to claim 1, wherein slide mechanisms are provided at positions facing each other along the radial direction of the support tool body, the slide mechanisms being capable of expanding and contracting the support tool body along the circumferential direction, respectively. Support.