KR100739657B1 - Sleeve for protecting pipe in building - Google Patents

Abstract

A sleeve structure for protecting a pipe of a building is provided to shorten working hours by connecting pipes without crossing each other by positioning a pipeline to the center of a sleeve quickly and exactly. The sleeve structure for protecting a pipe of a building capable of positioning a pipe inserted through the inside of a sleeve to the center of the sleeve quickly and exactly includes a sleeve(100) of a hollow structure installed to penetrate the bottom of a building, a clamp member(300) holding a pipe(P) installed via the sleeve to locate to the center of the sleeve and provided with a cutting portion(310), a wedge member(500) of a hollow structure installed between the inside of the sleeve and the outside of the clamp member and provided with a cutting portion(510) and a ring groove(530), and a clamping nut(700) tightening the cutting portion of the clamp member and pressurizing the clamp member to adhere closely to the pipe, and pressurizing the wedge member and widening the cutting portion of the wedge member by interference with the clamp member to make the wedge member adhered closely to the sleeve.

Description

Sleeve for protecting pipe in building

1 is an exploded perspective view showing a sleeve structure of the present invention

2 is a longitudinal cross sectional view of the sleeve structure of FIG. 1;

3a to 3e is a cross-sectional view showing a pipe fixing process according to the sleeve structure of the present invention,

Figure 3a is a cross-sectional view showing that only the sleeve is fixed to the concrete

Figure 3b is a cross-sectional view showing a state in which the pipe is located inside the sleeve

Figure 3c is a cross-sectional view showing a state in which the clamp member is coupled to the upper inner sleeve

Figure 3d is a cross-sectional view showing the coupling of the wedge member between the inside of the sleeve and the clamp member while the packing is coupled to the upper sleeve

Figure 3e is a cross-sectional view showing a part of the tightening nut is coupled to the upper clamp member

Figure 3f is a cross-sectional view showing that the tightening nut is completely coupled to the upper clamp member so that the pipe is fixed to the center of the sleeve

4 is a cross-sectional view showing the line I-I of FIG. 3C.

Figure 5 is a cross sectional view taken along the line II-II of Figure 3d

FIG. 6 is a cross sectional view taken along line III-III of FIG. 3E;

FIG. 7 is a cross sectional view taken along the line IV-IV of FIG. 3F.

8 is a cross sectional view taken along the line VV of FIG. 3F;

* Explanation of symbols for main parts of the drawings

100: Sleeve 110: Unevenness

120: protrusion 200: packing

300: clamp member 310: incision

330: inserting part 350: fastening part

370: cutting groove 500: the wedge member

510: Incision 530: Ring groove

550: jam 600: O-ring

700: Tightening nut 710: Pushing part

The present invention relates to a sleeve for protecting a pipe of a building, and more particularly to a pipe protection sleeve structure and a construction method of the building to hold the pipe inserted through the sleeve accurately positioned in the center of the sleeve. To provide.

In general, the sleeve (Sleeve) has a preliminary meaning of "metal fittings such as long shafts," and in the construction field, the sleeve is used to fix the pipes such as sewage pipes, air pipes, drain pipes and water supply pipes installed in the building. .

That is, in the construction method of the conventional sleeve formwork for forming the building floor surface is installed on each floor of the building. At this time, the bottom surface of the formwork is to make a centerline (cross state is formed around the circle) in order to ensure that the sleeve is installed in the correct position. Meanwhile, the sleeve is aligned and fixed to a centerline formed on the bottom surface of the formwork, and then the sleeve is fixed with a fixing nail. At this time, the upper part of the sleeve is covered with a cap for preventing foreign matter inflow, and in the state where the cap is covered on the sleeve after pouring concrete to the upper part of the form after a certain curing period, while removing the formwork from the concrete The pipe is inserted into the sleeve embedded in concrete, and then a separate fixing means is installed on top of the sleeve to fix and finish the pipe. However, the conventional sleeve has the following problems in fixing the pipe.

For example, the pipes installed through the inside of the sleeve are installed in a state not exactly positioned at the center of the sleeve, so that when connecting the pipes and the pipes installed through the inside of the sleeve, there is a problem that the connection position is difficult to connect. have.

In other words, if the pipe is installed in a high-rise building, not a single-story building, the installation work is required at the correct location. It is difficult to connect the pipe and the pipe when the pipes continuously installed between the floors are separated from the exact position or are inclined, and the pipes of the pipes are blocked by the contents discharged through the pipes. Will be created.

The present invention is to solve the above-mentioned problems, an object of the present invention is to provide a sleeve structure for protecting the pipe structure of the structure which is installed on the upper sleeve to hold the pipe inserted through the inside of the sleeve quickly and accurately positioned in the center of the sleeve The purpose is to provide.

In order to achieve the above object, the present invention provides a hollow structure sleeve that is installed through the building floor; A clamp member configured to hold the pipe installed through the sleeve so as to be positioned at the center of the sleeve and having a cutout portion formed at one side thereof; A hollow wedge member installed between the inner side of the sleeve and the outer surface of the clamp member and having a cutout portion formed at one side thereof; When fastening to the upper end of the clamp member, by tightening the cut portions of the clamp member in a direction to be in contact with each other to press the clamp member in close contact with the pipe, while pressing the wedge member by the interference with the clamp member Provided is a sleeve structure for protecting the pipe, characterized in that it comprises a; a tightening nut for making the wedge member in close contact with the sleeve by opening the cut incision of the wedge member.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 8.

1 is an exploded perspective view showing a sleeve structure of the present invention, Figure 2 is a longitudinal cross-sectional view of the coupling of the sleeve structure of Figure 1, Figures 3a to 3e is a cross-sectional view showing a pipe fixing process according to the sleeve structure of the present invention, 4 is a cross-sectional view showing the line I-I of FIG. 3C, FIG. 5 is a cross-sectional view showing the II-II line of FIG. 3D, FIG. 6 is a cross-sectional view showing the III-III line of FIG. 3E, and FIG. It is a cross-sectional view which shows the IV-IV line, and FIG. 8 is a cross-sectional view which shows the VV line of FIG. 3F.

Referring to these drawings, the sleeve 100 of the hollow structure is installed through the building floor; A clamp member 300 which holds the pipe P installed through the sleeve 100 so as to be positioned at the center of the sleeve 100 and has an incision 310 cut at one side thereof; It is installed between the inner side of the sleeve 100 and the outer surface of the clamp member 300, the incision 510 is formed on one side is formed, the wedge member of the hollow structure in which the annular ring groove 530 is formed on the outer peripheral surface ( 500); When fastening to the upper end of the clamp member 300, by tightening the cut portions 310 of the clamp member 300 in a direction to abut each other to press the clamp member 300 in close contact with the pipe (P) By pressing the wedge member 500, the wedge member 500 is placed on the sleeve 100 by opening the cutout 510 of the wedge member 500 by the interference with the clamp member 300. It is configured to include; tightening nut 700 to be in close contact with.

On the other hand, the sleeve 100 is a hollow structure through which the inside of the plastic or PVC material, the outer diameter of the intermediate portion in the axial direction of the sleeve 100 is the sleeve 100 in order to increase the bonding force with the concrete (CON) It is formed to achieve an outer diameter smaller than the outer diameter of both ends.

In addition, the middle portion of the sleeve 100 formed as described above is formed with fine concavo-convex 110 on the surface to further increase the bonding force with the concrete (CON) that is poured to form the building floor surface.

In addition, the protrusion 130 is preferably formed in an annular or arc shape along the circumferential direction on the outer circumferential surface of the middle portion of the sleeve 100.

Meanwhile, the clamp member 300 is inserted in the upper portion of the sleeve 100 and is located between the sleeve 100 and the pipe P. In addition, the clamp member 300 has an insertion portion 330 formed on the lower side to be coupled to the upper portion of the sleeve 100, and is coupled to the tightening nut 700 as a diameter smaller than the diameter of the insertion portion 330. A fastening portion 350 having a thread formed on an outer circumferential surface thereof is integrally formed on the insertion portion 330, and an incision groove 370 is formed in a vertical direction on the opposite outer circumferential surface on which the cut portion 310 is formed.

At this time, the insertion portion 330 of the clamp member 300 is tapered from the bottom up.

In addition, the inside of the wedge member 500 is tapered to conform to the inserting portion 330 of the clamp member 300, the engaging piece 550 to be caught on the upper end of the sleeve 100 to the upper end of the wedge member 500. ) Is formed.

Meanwhile, a packing 200 is further provided at an upper end of the sleeve 100 to prevent noise due to mutual friction with the engaging piece 550 of the wedge member 500 and to seal the wedge member 500 and the sleeve 100. It is provided.

In addition, the outer circumferential surface of the tightening nut 700 forms a rough surface so as not to slip when loosening or tightening the tightening nut 700, and a pressing part 710 having a large diameter is formed to increase the press area outside the lower end thereof. do.

On the other hand, the overall profile of the tightening nut 700 may have a polygonal shape.

Therefore, the clamp member 300 and the in the state in which only the sleeve 100 remains on the building bottom surface through the concrete (CON) curing process during the fixing process of the pipe (P) using the sleeve structure (M) of the present invention. 3A to 3F will be described with reference to FIGS. 3A to 3F as the effect of the coupling between the wedge member 500 and the tightening nut 700 is as follows.

First, referring to FIG. 3A, only the sleeve 100 is embedded and fixed in the concrete CON.

Next, referring to FIGS. 3B and 3C, the pipe P is positioned inside the sleeve 100, and the clamp member 300 is coupled to the upper portion of the sleeve 100.

That is, the pipe P is installed inside the sleeve 100 and is inserted between the outside of the pipe P and the inside of the sleeve 100 so that the pipe P is positioned at the center of the sleeve 100. The clamp member 300 is inserted into the upper portion of the sleeve 100 to give.

At this time, the clamp member 300 is a state in which the clamp member 300 is spaced apart from the predetermined distance (l1) not in close contact with the pipe (P), the cutout 310 of the clamp member 300 is a predetermined interval ( ℓ2) It is open. This is as shown in FIG.

Next, referring to FIG. 3D, the wedge member 500 is inserted between the inside of the sleeve 100 and the outside of the clamp member 300 while the packing 200 is positioned above the sleeve 100.

That is, the wedge member 500 is inserted between the outside of the clamp member 300 and the inside of the sleeve 100 spaced apart from the pipe P by a predetermined distance l1. At this time, the wedge member 500 is inserted in a state where the predetermined distance (l3) (l4) is spaced apart from the outer peripheral surface of the clamp member 300 and the inner peripheral surface of the sleeve 100, and the clamp member ( 300 and the cutouts 310 and 510 of the wedge member 500 are in a state of being spaced apart (L5). This is as shown in FIG.

Next, referring to FIG. 3E, the tightening nut 700 is coupled to the clamp member 300 in a state where the tightening nut 700 is partially fastened.

That is, when a part of the tightening nut 700 is fastened to the fastening part 350 of the clamp member 300, a portion of the cutout 310 which is opened at a predetermined interval ℓ 5 of the clamp member 300 is shown in FIG. 7. As described above, the clamp member 300 is in close contact with the pipe P by tightening in a direction in which the members abut each other. At this time, since the wedge member 500 is not in the state of interference with the clamp member 300, the wedge member 500 is in a state in which the wedge member 500 is not in close contact with the sleeve 100. This is as shown in FIG.

Here, when the cutout portion 310 of the clamp member 300 is tightened or opened in a direction in which they are in contact with each other, the cutout groove 370 is narrowed or unfolded around the cutout groove 370 of the clamp member 300. While giving elasticity to the clamp member 300, the cutout 310 of the clamp member 300 is flexible when tightened or spread in a direction in which they are in contact with each other.

Next, referring to Figure 3f, the clamping member 300, the upper tightening nut 700 is coupled in a fully fastened state.

That is, when the tightening nut 700 coupled to the fastening portion 350 of the clamp member 300 is completely fastened, the clamp member 300 is moved in the direction of the arrow shown in FIG. 3E, and the wedge member ( The pressurizing member 500 opens the cutout portion 510 of the wedge member 500 by a predetermined distance (L6) by the interference with the clamp member 300, so that the wedge member 500 has the arrow shown in FIG. 3E. The wedge member 500 is strongly adhered to the sleeve 100 by moving in a direction. This is as shown in FIG.

In other words, in the process of fully fastening the tightening nut 700 to the fastening part 350 of the clamp member 300, the calling part 710 of the tightening nut 700 is caught by the wedge member 500. Pressurize 550. At this time, the wedge member 500 is caught by the locking piece 550 of the wedge member 500 on the sleeve 100 so that it can no longer be lowered. On the other hand, the clamp member 300 is raised by the tightening force of the tightening nut 700, the wedge member 500 is subjected to the interference of the tapered insertion portion 330 of the clamp member 300 the wedge member ( The cutout 510 of 500 is in close contact with the inner circumferential surface of the sleeve 100 while opening a predetermined interval (l6).

Through the above process it is possible to more securely secure the pipe (P) located in the center of the sleeve (100).

On the other hand, when removing the pipe (P) is fixed to the center of the sleeve 100, when loosening the tightening nut 700 in the direction in which the tightening force is released, the tightening nut 700 of the clamp member 300 It is removed from the fastening part 350.

Accordingly, the wedge member 500, which is in close contact with the sleeve 100, is narrowed in the gap between the cutout portion 510 of the wedge member 500, which is released by the interference with the clamp member 300, and thus the sleeve 100. ) The adhesion that comes in close contact with

In addition, the clamp member 300 which is in close contact with the pipe P is widened and the gap between the cutout portions 310 of the clamp member 300 is narrowed, and the tightening force of the clamp member 300 is released to thereby release the pipe P. It can be removed from the inside of the sleeve (100).

On the other hand, if the overall profile of the tightening nut 700 is a polygon can be more easily released using a dedicated tool (for example, monkey spanner, pipe wrench, etc.).

Reference numeral 600 is an O-ring coupled to the ring groove 530 of the wedge member 500 to seal a gap between the wedge member 500 and the sleeve 100.

The present invention as described above has the following effects.

That is, when the pipe (P) is installed in the upper portion of the sleeve 100 is inserted into the sleeve 100 to be quickly and accurately positioned in the center of the sleeve 100 to be connected between the pipe (P) and the pipe, Since it can be connected without shifting each other, the working time can be shortened.

Claims (4)

A sleeve having a hollow structure installed through the building bottom surface; A clamp member configured to hold the pipe installed through the sleeve so as to be positioned at the center of the sleeve and having a cutout portion formed at one side thereof; A hollow wedge member installed between the inner side of the sleeve and the outer surface of the clamp member and having a cutout portion formed at one side thereof; When fastening to the upper end of the clamp member, by tightening the cut portions of the clamp member in a direction to be in contact with each other to press the clamp member in close contact with the pipe, while pressing the wedge member by the interference with the clamp member And a tightening nut for making the wedge member adhere to the sleeve while opening the cut portion of the wedge member. The method of claim 1, The sleeve structure for protecting the pipe of the building, characterized in that the inner surface of the wedge member is tapered to correspond to the outer peripheral surface of the clamp member. The method of claim 1, The upper end of the wedge member is a sleeve structure for protecting the piping of the building, characterized in that the hook piece is further provided on the upper end of the sleeve. The method of claim 1, The outer circumferential surface of the tightening nut is a sleeve structure for protecting the piping of the building, characterized in that the surface is further provided.

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