KR100810504B1 - Implement for guiding crevice of plaster layer in floor heating system - Google Patents

Abstract

A crack guide device for a plaster layer of an ondol floor is provided to prevent the formation of cracks on a plaster layer of an ondol floor by guiding the concentration of cracks in a crack guide device, to improve constructability by connecting a first member and a second member using coupling pieces, and to prevent the environmental pollution caused by construction waste disposal by cutting into the appointed length in a factory and connecting easily according to the conditions of an installation site and reusing the remnants. A crack guide device for a plaster layer of an ondol floor comprises a first member(10) and a second member(20) placed to be opposite to each other and coupled with each other, and a connecting piece(30) connecting the first and second member integrally, wherein the first member is composed of a vertical section(11), an anchoring piece(12) extended from the bottom of the vertical section, and top and middle coupling pieces(13,14) extended inward from the top and the middle of the vertical section, the second member is composed of a vertical section(21) formed parallel to the vertical section of the first member, an anchoring piece(22) extended from the bottom of the vertical section, and top and middle coupling grooves(24) formed to the top and the middle of the vertical section and inserted/coupled to the top and middle coupling pieces, and the connecting piece is formed to the appointed thickness to be bendable. If a crack is formed in a plaster layer according to the contraction of cement mortar of the plaster layer, a gap is formed between the first member and the second member as much as the contraction of the cement mortar to prevent the propagation of cracks in the plaster layer, and a crack formed on a surface layer of the plaster layer is cut off by the connecting piece to prevent the discoloration or separation of flooring due to air circulation. In addition, a connector(40) is installed to connect two crack guide devices when an installation section is longer than 2m or the remnants of the crack guide device is used in an installation site after cutting into a length of 2m in a factory.

Description

Isolation for guiding crevice of plaster layer in floor heating system

1 to 5 show the plaster layer crack induction mechanism of the ondol floor according to the present invention,

1 and 2 are exploded perspective views and cross-sectional views of the first member and the second member,

3 and 4 are a perspective view and a cross-sectional view of the combined state of the first member and the second member,

5 is a cross-sectional view showing a state in which the first member and the second member are opened in accordance with the shrinkage of the plastering layer,

6 is a longitudinal cross-sectional view showing a state in which the plaster layer crack induction mechanism of the ondol floor according to the present invention is embedded in the plaster layer;

7A is an enlarged longitudinal sectional view showing an initial state in which a plaster layer crack induction mechanism of an ondol floor according to the present invention is embedded in a plaster layer;

Figure 7b is an enlarged longitudinal cross-sectional view showing a state that the plaster layer crack induction mechanism of the underfloor floor according to the present invention is opened by the dry shrinkage of the plaster layer;

7C is an enlarged longitudinal sectional view showing a state in which a sealing material is filled in the gaps of the plaster layer crack induction mechanism of the underfloor according to the present invention;

8 and 9 are an exploded perspective view and a longitudinal cross-sectional view showing a state of connecting the plaster layer crack induction mechanism of the ondol floor according to the present invention by a connecting rod.

<Description of the symbols for the main parts of the drawings>

10: first member 20: second member

11,21: vertical part 12,22: fixing piece

13,14: coupling piece 23,24: coupling groove

30: connecting piece 40: connecting table

The present invention relates to a crack induction mechanism of the on-floor plastering layer to induce cracks occurring in the on-floor plastering layer finished with cement mortar only at a predetermined position, and in particular, the workability is improved, and the manufacturing cost is improved by improving the production productivity. This invention relates to a mechanism for inducing cracking of a plaster layer on an on-floor floor, which can reduce costs and prevent environmental pollution due to material disposal.

In general, the underfloor is formed with Styrofoam and foam concrete in order to insulate and heat the concrete slab in order to form a heat insulation and heat storage layer, and after fixing the heating coil on the heat insulation and heat storage layer, the cement mortar higher than the heating coil. Install through the process of forming a plaster layer.

In this way, the plaster layer of the ondol floor finished with cement mortar is cracked in various places due to the drying shrinkage during curing. Especially, the plaster layer of the ondol floor adjacent to the edge of the wall causes the crack cracking due to the concentration of stress. As these cracks are generated, the cracks cause the discoloration or excitement of flooring materials such as carpets covered on the flooring layer of the ondol floor, causing a great deterioration of the aesthetics. It will repair the cracks generated in the floor, but after the repair, the cracks will progress to the plastering layer of the ondol floor, which will cause the trouble such as the need for repairing and excessive cost of the repair. It became.

In order to solve the above problems, conventionally, when constructing a plastering layer of an ondol floor, a metal lath is buried in a cracking prospective portion of the plastering layer, or a method of digging into the plastering surface of the cracking prospective portion is used.

However, the conventional metal lath filling method and the grooving method do not completely control the cracks in the plaster layer of the ondol floor due to dry shrinkage or stress concentration. Due to the limitations not known, there was a defect that could not be reliably prevented from causing cracks in the plaster layer of the ondol floor.

Accordingly, the present inventors have developed an expansion mechanism for preventing cracks in the underfloor plastering layer, such as 2004 Patent Application No. 107866.

The ondol-floor plaster layer crack prevention expansion and contraction mechanism of the present invention has a channel-like cross-sectional shape that has an elastic coupling member in which a guide groove is formed in the longitudinal direction on the inner side thereof, and a cross-sectional shape corresponding to the elastic coupling member material, the length of which is inside thereof. It is configured as an elastic fitting member in which the fitting jaw protrudes in the direction, and the fitting jaw of the elastic fitting member is elastically inserted into the guide groove of the elastic coupling member so as to expand and contract. It is configured to induce expansion and contraction to the phenomenon, and prevents the occurrence of cracks in the plastering layer of the ondol floor, eliminating the need for repairing the plastering layer of the ondol floor, thereby reducing the inconvenience of residents and reducing the economic burden. There are advantages such as letting.

However, the ondol-floor plaster layer crack prevention expansion and contraction mechanism of the present invention has a problem in that the production process and the increase in manufacturing cost, as well as the construction process, in addition to the extrusion molding of the two members of the elastic coupling member and the elastic fitting member separately, as well as the construction process There is a problem in that the workability is deteriorated because the two members must be paired in construction, and there is a lot of effort and hassle to install so that the upper surface is horizontal and coincides with the dressing surface of the ondol floor.

Accordingly, an object of the present invention is to allow the plastering layer of the ondol floor to be stretched and contracted to dry shrinkage and stress concentration by the first member and the second member, thereby inducing cracks to concentrate, thereby causing ondol other than the crack induction mechanism. The first floor and the second member are connected to each other by connecting pieces, and thus the plastering layer on the floor can be completely prevented from cracking. It is to provide a plaster layer crack induction mechanism.

Another object of the present invention is that the first member and the second member are connected by a connecting piece and are integrally formed so that they can be manufactured by one extrusion molding, and thus the plastering layer crack induction mechanism of the on-floor floor can be manufactured by improving production productivity. Is to provide.

Another object of the present invention is to be able to easily respond to the on-site conditions by using a plurality of connection when it is to be cut at the factory to be installed in a long portion compared to the length, and also by reconnecting the remaining cut after use in the field The purpose of the present invention is to provide a crack-inducing mechanism for plastering on the underfloor that can be used without disposing of the material, thereby preventing environmental pollution caused by the disposal of the material.

The present invention includes a first member having a vertical portion, a fixing piece extending from the lower end of the vertical portion, and an upper end and a middle engaging piece formed at the upper end and the middle portion of the vertical portion to achieve the above object; An upper portion and a disengagement groove formed on the upper portion and the distal portion of the vertical portion corresponding to the upper and the disengagement pieces; 2 members and; It provides a plastering layer crack induction mechanism of the ondol floor comprising a connecting piece that connects and integrates the fixing portions of the first and second members.

Hereinafter, the plaster layer crack induction mechanism of the ondol floor according to the present invention will be described in detail according to the embodiment shown in the accompanying drawings.

1 to 5 show a plaster layer crack induction mechanism of the ondol floor according to the present invention, Figures 1 and 2 are exploded perspective views and cross-sectional views of the first member and the second member, Figures 3 and 4 are the first A perspective view and a cross-sectional view of a combined state of the member and the second member, FIG. 5 is a cross-sectional view showing a state in which the first member and the second member are opened according to the shrinkage of the plastering layer, and FIG. 6 is a plaster layer crack induction mechanism of the ondol floor according to the present invention. Figure 7a is an enlarged longitudinal sectional view showing an initial state in which the plaster layer crack induction mechanism of the ondol floor according to the present invention buried in the plaster layer, Figure 7b is an ondol floor according to the present invention 7C is an enlarged longitudinal sectional view showing a state in which a plaster layer is contracted after a plaster layer crack induction mechanism is buried in the plaster layer, and FIG. 7C shows a state in which a sealing material is filled in the gaps of the plaster layer crack induction mechanism of the underfloor according to the present invention. Zoomed In Profile A.

Plastering layer crack induction mechanism of the ondol floor according to the present invention, as shown in Figure 1, the first and second members 10, 20, which are disposed opposite to each other and coupled to each other, and the first and second members It comprises a connecting piece (30) for connecting and integrating (10) and (20).

The first members 10 and 20 and the connecting piece 30 are manufactured by synthetic resin extrusion, and are used by cutting to a required length.

The first member 10 has a vertical portion 11, a fixing piece 12 extending from the lower end of the vertical portion 11, and horizontally extended inward from the upper end and the middle of the vertical portion 11 It consists of the upper and the stop engaging pieces 13, 14,

The second member 20 may include a vertical portion 21 parallel to the vertical portion 11 of the first member 10, a fixing piece 22 extending from a lower end of the vertical portion 11, and It is formed on the upper end and the middle of the vertical portion 21 is composed of the upper and middle engaging grooves 23 and 24 into which the upper and middle engaging pieces 13 and 14 are inserted.

The connecting piece 30 is formed to a thickness that can be easily bent while connecting the first member 10 and the second member 20 integrally.

The first member 10, the second member 20, and the connecting piece 30 are integrally formed at a time by extrusion molding.

Plastering layer crack induction mechanism of the ondol floor according to the present invention is the first member 10 and the second member 20 is not coupled to each other, as shown in Figure 1 and 2 when extrusion molding, When the coupling pieces 13 and 14 of the first member 10 are inserted into the coupling grooves 23 and 24 of the second member 20 to couple the first member 10 and the second member 20 to each other. As shown in FIGS. 3 and 4, the connecting piece 30 is bent.

The coupling grooves 23 and 24 of the second member 20 are formed between each pair of extension pieces 25a and 25b and 26a and 26b extending from the vertical portion 21.

The upper end of the vertical portion (11) 21 is composed of curved surfaces (11a) (21a) formed in a downward curved shape from the outside, even if the crack induction mechanism embedded in the plastering layer is not vertically erect vertically due to construction errors It is desirable to avoid exposure to the top of the plaster.

Guides that guide the insertion of the upper coupling piece 13 of the first member 10 by being bent upwards and downwards in the distal ends of the extension pieces 25a and 25b forming the upper coupling groove 23. The end portions of the extension pieces 26a and 26b forming the curved surfaces 25c and 25d and forming the lower coupling groove 24 are bent in a direction that is open to each other, that is, bent upwards and downwards to lower ends of the first member 10. It is preferable to form guide bends 26c and 26d for guiding the insertion of the engaging pieces 14.

In order to increase the coupling force when the upper coupling piece 13 of the first member 10 is inserted into and coupled to the upper coupling groove 23 on the upper surface of the lower extension piece 25b forming the upper coupling groove 23. It is preferable to form the uneven portion 27.

Hereinafter, the construction process of the plaster layer crack induction mechanism of the ondol floor according to the present invention will be described.

Laying a heat insulating material (2) such as styrofoam on the concrete slab (1), placing the foamed concrete (3) thereon, and after curing of the foamed concrete (3) is completed, the heating coil (4) is piped thereon, After filling the cement mortar with the above, install the crack induction layer of the underfloor floor according to the present invention on the site of the crack generation, and then flattening with a pusher, and after the first 4 to 6 hours, the first iron soiling, and then again After 2 to 3 hours, the second iron soil treatment, and after 2-3 hours to the third iron soil finish to complete the plaster layer (5). As described above, after 1 to 1.5 months have elapsed, cracks in the plastering layer 5 proceed.

Plastering layer crack induction mechanism of the ondol floor according to the present invention, as shown in Figs. 1 and 2, the upper end of the first member 10 and the upper end of the interruption engaging pieces (13, 14) and the second member (20) And the stop coupling grooves 23 and 24 are produced in a non-coupled state. The first member 10 and the second member 20 are connected by the connecting piece 30 to form a single member. This is very easy.

At this time, the connecting piece 30 connecting the first member 10 and the second member 20 is maintained in a flat unfolded state.

In installing the plaster layer crack induction mechanism of the ondol floor according to the present invention, as shown in Figs. 3 and 4, the upper end and the interruption engaging pieces (13, 14) of the first member 10, the second member 20 Inserted into the upper and middle coupling grooves (23, 24) of the) to store, transport and install the first member 10 and the second member 20 in a combined state.

At this time, the upper coupling piece 13 of the first member 10 is guide bent portion 25c, 25d formed at the tip of the extension piece (25a, 25b) forming the upper coupling groove 23 of the second member (20) Guide guide bend formed at the tip of the extension piece (26a, 26b) that forms the interruption engaging groove 24 of the second member 20 is guided by the lower member (14) of the first member (10) Guided by the portions 26c and 26d, the first member 10 and the second member 20 are smoothly coupled.

When the coupling pieces 13 and 14 are inserted into the coupling grooves 23 and 24 so that the coupling pieces 13 and 14 of the first member 10 are coupled, the connecting piece 30 is shown in FIGS. 3, 4 and 7A. As shown in FIG. 1, the state is bent.

When the crack progresses in the plaster layer 5 in accordance with the shrinkage of the cement mortar constituting the plaster layer 5, as shown in Figs. 5 and 7b, the plaster layer crack induction mechanism of the underfloor floor according to the present invention is constituted. The first member 10 and the second member 20 are formed with a gap C according to the degree of shrinkage of the cement mortar.

Therefore, the crack of the plastering layer 5 due to the shrinkage of the cement mortar does not occur in any of several places, but concentrates on the plastering layer crack induction mechanism of the ondol floor of the present invention, and the cracking by the amount of shrinkage occurs.

In addition, the cracks generated in the surface layer of the plastering layer 5 is blocked by the plastering layer crack induction mechanism connecting piece 30 of the ondol floor according to the present invention, it is possible to prevent the discoloration of the flooring material due to the flow of air or to lift the flaw. .

Subsequently, as shown in FIG. 7C, the sealing material S is filled in the gap C between the first member 10 and the upper end of the second member 20, which are separated from each other according to the shrinkage of the cement mortar. Construction is completed by making it coplanar with the surface of).

On the other hand, the plaster layer induction mechanism of the underfloor floor of the present invention is preferably used in the construction by cutting the length of 2m in the factory to be carried out on-site, for example, when the length of the installation section is 2m or more, or when using a cut after use The connecting table 40 is further provided as shown in FIGS. 8 and 9 in order to be able to connect the plaster layer crack induction mechanism of the two ondol floors.

The connecting table 40 includes a lower extension piece 25b and an interruption coupling piece 24 that form an upper coupling groove 23 between the vertical portions 11 and 21 of the first and second members 10 and 20. It is formed in a cross-sectional shape that can be inserted into the space formed by the upper extension piece (26a) to form a.

The connecting table 40 is preferably formed in a length of about 10cm, it can be changed in length if necessary.

In addition, when the guide bent portion 26c is formed on the extension piece 26a on the lower end surface of the connecting table 40, a recessed portion 41 corresponding to the guide bent portion 26c is formed.

The connecting table 40 is preferably formed in the right and left symmetric cross section for the convenience of operation.

When the connection table 40 is to be installed in a part longer than the length of the plaster floor crack induction mechanism of the ondol floor which was cut at the factory and brought into the site, it is used by connecting several plaster floor crack induction mechanisms of the ondol floor or cutting at the site. By connecting the left and right pieces of waste after use, you can not only save materials, but also prevent the environmental pollution caused by the disposal of waste materials.

As described above, according to the plaster layer induction mechanism of the ondol floor of the present invention, the first and second members allow the plaster layer of the ondol floor to be stretched and contracted to conform to dry shrinkage and stress concentration. By concentrating, it is possible to completely prevent the occurrence of cracks in the plastering layer of the underfloor floor other than the crack-inducing furniture, while the first member and the second member are connected to each other by a connecting piece and are easily formed. The workability is improved.

In addition, according to the plaster layer induction mechanism of the ondol floor of the present invention, since the first member and the second member are connected by a connecting piece and integrally formed, they can be manufactured by one extrusion molding, thereby reducing manufacturing cost by improving production productivity. There is.

In addition, according to the plaster layer crack induction mechanism of the ondol floor of the present invention, when it is to be installed in a part longer than the length of the plaster layer crack induction mechanism of the ondol floor which is cut at the factory and brought into the site, the plaster layer crack induction mechanism of the multiple floors Can be easily connected to site conditions by connecting and using it as a connecting rod, and the remaining edges cut and used at the site can also be used by connecting by using the connecting rod to prevent the environmental pollution due to the disposal of materials. There is an effect that can be done.

Claims (3)

A first member having a vertical portion, a fixing piece extending from a lower end of the vertical portion, and a top and middle engaging piece formed at an upper end and a middle portion of the vertical portion; An upper portion and a disengagement groove formed on the upper portion and the distal portion of the vertical portion corresponding to the upper and the disengagement pieces; 2 members and; Plastering layer crack induction mechanism of the ondol floor comprising a connecting piece for connecting and fixing the fixing portions of the first and second members to each other. The plaster layer crack induction mechanism of the ondol floor according to claim 1, wherein upper ends of the vertical parts of the first and second members are formed in a curved surface formed downwardly from the outside. The plaster layer crack induction mechanism of the ondol floor according to claim 1, wherein the upper end and the stop coupling groove are formed between each pair of extension pieces extending from the vertical portion.

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