Fixing device of an insulating material for construction

Abstract

The present invention relates to a fixing device for interior materials used in construction, which enables the convenient installation of multiple interior materials on the front surface of a building wall, allows for flexible adaptation to changes in the thickness or number of interior materials to be installed, and ensures stable installation and use. Its characteristic configuration comprises: an installation plate that is fixedly installed on the front surface of a building wall where interior materials are to be installed, having a first adhesive plate on the rear surface corresponding to the wall and a second adhesive plate on the front surface, and having a pair of facing fastening protrusions protruding from the upper and lower portions of the front surface; a fastening member that is fixedly coupled to the front surface of the installation plate, having a pair of fastening holes formed in the portion corresponding to the fastening protrusions, having an open front surface and an installation groove formed on the inner side of the front center portion, having a pair of facing guide grooves formed on the upper and lower portions of the inner diameter of the installation groove, forming a downward slope from the front surface to the rear surface and having a locking groove formed in the portion adjacent to the rear surface, and having a contact plate connected by an elastic spring protruding from the inner rear surface, and the interior material's A wall fixing plate having a plurality of protruding connecting pins coupled to the rear surface; a bar-shaped structure detachably coupled to the installation groove, wherein a pair of facing locking protrusions that engage with the locking groove and are fixed are protruded from the rear edge portion, and a cut groove is formed in the rear center portion to extend in the front direction, with a plurality of supporting springs connecting the cut portions formed in the cut portion, and a plurality of seating holes formed at regular intervals, penetrating the upper and lower portions in the longitudinal direction and having a plurality of seating grooves formed in the inner diameter length direction, and after being inserted into the installation groove, the locking protrusions engage with the locking grooves and are fixed; and a plurality of interior material fixing bars having a plurality of seating balls coupled to the seating groove in the longitudinal center portion and a plurality of fixing pins coupled to the rear surface of the interior material on the front surface and coupled to the seating holes, wherein after the installation plate, wall fixing plate, and connecting bar are installed on the front surface of the wall,When interior materials are installed on the front surface of the above-mentioned wall fixing plate, the connection position and number of connection bars of the interior material fixing bars connected to the above-mentioned mounting holes are configured to change according to changes in the thickness or number of the installed interior materials.

Description

Technology Field

[0001] The present invention relates to a fixing device for interior materials used in construction, and more specifically, to a fixing device for interior materials used in construction that allows for the convenient installation of multiple interior materials on the front surface of a wall of a building, and enables stable installation and use by flexibly responding to changes in the thickness or number of interior materials to be installed. Background Technology

[0003] A building refers to a structure constructed on the ground using a framework and concrete, etc., designed to allow people to live inside.

[0004] Such buildings are constructed on the ground in various forms to accommodate societal changes and the intended use of indoor living, and they are equipped with and utilized various types of materials and mechanical structures to enable people living inside to lead comfortable lives.

[0005] At this time, various types of interior materials are installed and used on the walls of buildings to prevent people living inside the building from experiencing difficulties in their indoor lives due to changes in the external environment.

[0006] These interior materials are installed by being attached to or coated onto the walls of a building, thereby preventing the indoor temperature from easily changing in response to changes in the external environment.

[0007] The installation of such interior materials is generally achieved by applying adhesive or similar materials to the surface of a building wall to form a panel-shaped interior material. However, this method has the problem that the installation position of the interior material installed on the wall can be easily changed. Recently, however, a method of installing the interior material on the wall using a structure such as a fixing device installed on the building wall has been proposed, as described in document (1).

[0008] However, methods using conventional fixing devices such as those described in document (1) can install interior materials on the wall, but it is difficult to install interior materials while responding flexibly to changes in the number or thickness of the interior materials to be installed. When the number or thickness of the interior materials to be installed changes, problems may arise such as having to reinstall the fixing device installed on the wall of the building or being unable to install the interior materials. Prior art literature

[0010] (1) Republic of Korea registered patent number 10-1587163 (2016.01.14) The problem to be solved

[0011] The present invention has been devised to solve the aforementioned problems, and the objectives of the present invention are as follows.

[0012] First, it allows for the convenient installation of multiple interior materials on the walls of a building, and enables the installation of interior materials by flexibly responding to changes in the number of interior materials to be installed.

[0013] Second, it enables the convenient installation of multiple interior materials on the walls of a building and allows for the installation of interior materials by flexibly responding even when the thickness of the interior materials to be installed changes.

[0014] Third, even when multiple interior materials are installed on the walls of a building, the installation and use of the interior materials can be achieved by flexibly responding to changes in the number or thickness of the interior materials without the need for reinstallation of the fixing device to install the interior materials.

[0015] Fourth, even during the process of installing multiple interior materials on the walls of a building, it is possible to flexibly respond to changes in the thickness or number of interior materials and achieve stable installation and use, thereby enabling stable installation of interior materials in response to changes in the shape of the building or the work site where the interior materials are to be installed, and through this, the overall work time and cost reduction effect for installing interior materials can be achieved. means of solving the problem

[0017] To achieve the above objective, the present invention comprises: an installation plate that is fixedly installed on the front surface of a wall of a building where an interior material is to be installed, wherein a first adhesive plate is provided on the rear surface corresponding to the wall and a second adhesive plate is provided on the front surface, and a pair of facing fastening protrusions are provided protruding from the upper and lower portions of the front surface; a wall fixing plate that is fixedly coupled to the front surface of the installation plate, wherein a pair of fastening holes are formed in the portion corresponding to the fastening protrusions, and an installation groove is formed on the inner side with the front surface open at the center of the front surface, and a pair of facing guide grooves are formed on the upper and lower portions of the inner diameter of the installation groove, forming a downward slope from the front surface to the rear surface and having a locking groove formed in the portion adjacent to the rear surface, and a fastening hole protruding from the inner rear surface having a contact plate connected by an elastic spring is provided, and a plurality of coupling pins that are coupled to the rear surface of the interior material are provided protruding from the upper and lower portions of the front surface; and a bar-shaped plate that is detachably coupled to the installation groove, wherein a pair of facing locking protrusions that are fixed by being caught in the locking groove are provided protruding from the rear edge portion. A cut groove is formed in the rear central portion, extending in the front direction, and a plurality of support springs connecting the cut portion are provided in the cut portion. A plurality of seating holes are formed at regular intervals, penetrating the upper and lower portions in the longitudinal direction and having a plurality of seating grooves in the inner diameter length direction. A connecting bar is inserted into the installation groove, and a locking projection is caught and fixed in the locking groove. A plurality of seating balls that are seated and coupled to the seating groove are provided in the longitudinal central portion, and a plurality of fixing pins that are coupled to the rear of the interior material are provided in the front, and a plurality of interior material fixing bars coupled to the seating holes are provided. After the installation plate, wall fixing plate, and connecting bar are installed on the front of the wall, when the interior material is installed on the front of the wall fixing plate, the coupling position and number of coupling bars coupled to the seating holes may be configured to change according to changes in the thickness or number of the interior materials being installed.

[0018] At this time, a coupling hole having a coupling groove in the inner diameter adjacent to the rear is further formed on the front of the connecting bar, and an interior material support plate is further coupled to the coupling hole to surround the front of the interior material installed to surround the connecting bar, and the interior material support plate may be configured in a plate shape having a coupling projection that is coupled to the coupling groove provided on the rear edge portion, a coupling bar coupled to the coupling hole protruding from the rear, and a plurality of support pins coupled to the front of the interior material provided on the upper and lower portions of the rear adjacent to the coupling bar.

[0019] In addition, the connecting bar may further have a fitting hole formed on the longitudinal inner side adjacent to the seating hole, and a pair of incision lines formed on the outer edge portion of the fitting hole and the connecting bar, and when the connecting bar is separated by cutting the incision lines to separate the fitting hole, a fitting bar may be further coupled to the fitting hole to connect the separated portion of the connecting bar by pressing it against the fitting hole. Effects of the invention

[0021] The present invention as described above can achieve the following effects.

[0022] First, it is possible to conveniently install multiple interior materials on the walls of a building and to flexibly respond to changes in the number of interior materials to be installed.

[0023] Second, it is possible to conveniently install multiple interior materials on the walls of a building and to flexibly respond to changes in the thickness of the interior materials to be installed.

[0024] Third, even when multiple interior materials are installed on the walls of a building, the installation and use of the interior materials can be achieved by flexibly responding to changes in the number or thickness of the interior materials without the need for reinstallation of the fixing device to install the interior materials.

[0025] Fourth, even in the process of installing multiple interior materials on the walls of a building, it is possible to achieve stable installation and use by flexibly responding to changes in the thickness or number of interior materials, thereby enabling stable installation of interior materials in response to changes in the shape of the building or the work site where the interior materials are to be installed, and through this, the overall work time and cost reduction effect for installing the interior materials can be obtained. Brief explanation of the drawing

[0027] FIG. 1 is a cross-sectional view illustrating the state in which the fixing device for building interior materials according to the present invention is coupled to a wall. FIG. 2 is another cross-sectional view illustrating the state in which the fixing device for building interior materials according to the present invention is coupled to a wall. FIG. 3 is another cross-sectional view illustrating the state in which the fixing device for building interior materials according to the present invention is coupled to a wall. FIG. 4 is another cross-sectional view illustrating the state in which the fixing device for building interior materials according to the present invention is coupled to a wall. FIG. 5 is a cross-sectional view illustrating the state in which the interior material is installed by connecting the interior material fixing device for construction according to the present invention to a wall. FIG. 6 is another cross-sectional view illustrating the state in which the interior material is installed by connecting the interior material fixing device for construction according to the present invention to a wall. FIG. 7 is another cross-sectional view illustrating the state in which the interior material is installed with the interior material being connected to a wall by the fixing device for building interior materials according to the present invention. Specific details for implementing the invention

[0028] Terms and words used in this specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings, but rather should be interpreted in a sense and concept consistent with the technical spirit of the invention, based on the principle that "the inventor may appropriately define the concept of a term to best describe his invention."

[0029] In addition, the embodiments described in this specification and the configurations illustrated in the drawings are merely preferred embodiments of the present invention and do not represent all technical concepts of the present invention; therefore, it should be understood that various equivalents and modifications that can replace them may exist at the time of filing this application.

[0030] In addition, prior to describing the present invention, the area where the connection is made from the direction of the wall to the direction of the interior material will be referred to as the front, and the area where the connection is made from the interior material to the direction of the wall will be referred to as the rear.

[0031] Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the attached drawings.

[0032] The present invention comprises an installation plate (10) which is fixedly installed on the front surface of a wall (1) of a building to which an interior material (2) is to be installed, and which has a first adhesive plate (11) on the rear surface corresponding to the wall (1) and a second adhesive plate (12) on the front surface, and has a pair of connecting protrusions (13) protruding from the upper and lower portions of the front surface facing each other, and a fixing plate (22d) which is fixedly coupled to the front surface of the installation plate (10), and which has a pair of connecting holes (21) formed in the portion corresponding to the connecting protrusions (13), and which has an installation groove (22a) formed on the inner side with the front surface open at the center of the front surface, and a pair of connecting grooves (22b) formed facing each other on the upper and lower portions of the inner diameter of the installation groove (22a), which form a downward slope from the front surface to the rear surface and have a locking groove (22b-1) formed in the portion adjacent to the rear surface, and which has a contact plate (22d) connected by an elastic spring (22c) on the inner rear surface. A wall fixing plate (20) having a protruding fastener (22) and a plurality of connecting pins (23) protruding from the upper and lower front portions to be coupled to the rear surface of the interior material (2); a connecting bar (30) having a bar shape that is detachably coupled to the installation groove (22a), having a pair of facing hooking protrusions (31) protruding from the rear edge portion to be fixed by hooking into the hooking groove (22b-1), a cut groove (32) formed in the rear center portion to be extended in the front direction and having a plurality of supporting springs (32a) connecting the cut portions formed in the cut portion, and a plurality of seating holes (33) formed at regular intervals, penetrating the upper and lower portions in the longitudinal direction and having a plurality of seating grooves (33a) formed in the inner diameter length direction, and inserted into the installation groove (22a) and fixed by the hooking protrusions (31) hooking into the hooking groove (22b-1); and the A plurality of mounting balls (41) that are mounted and coupled to the mounting groove (33a) are provided in a plurality of longitudinal central portions, and a plurality of fixing pins (42) that are coupled to the rear surface of the interior material (2) are provided on the front surface, and a plurality of interior material fixing bars (40) that are coupled to the mounting hole (33) are included, and the mounting plate (10), wall fixing plate (20),After the connecting bar (30) is installed on the front of the wall (1), when the interior material (2) is installed on the front of the wall fixing plate (20), the connection position and number of connection bars (40) connected to the seating hole (33) are configured to change according to changes in the thickness or number of the interior material (2) being installed.

[0033] The above-mentioned installation plate (10) is installed in multiple numbers to be fixed to the front of the wall (1) of a building where the interior material (2) is to be installed, and is installed on the front of the wall (1) of the building so that the wall fixing plate (20), which will be described in detail below, can be easily installed.

[0034] At this time, the above-mentioned mounting plate (10) is configured such that a first adhesive plate (11) is provided on the rear side so that the first adhesive plate (11) is firmly attached to the front side of the wall (1), and a second adhesive plate (12) is provided on the front side so that the rear side of the above-mentioned wall fixing plate (20) is firmly attached to the second adhesive plate (12).

[0035] In addition, the above-described mounting plate (10) is configured to have a pair of fastening protrusions (13) protruding from the upper and lower front portions so as to face each other based on the longitudinal center portion, so that the wall fixing plate (20) can be fixedly installed on the front of the mounting plate (10).

[0036] In addition, the wall fixing plate (20) is fixedly installed on the front surface of the installation plate (10) as shown in FIGS. 1 to 4, and is configured to be attached to the rear surface of the second adhesive plate (12) provided on the front surface of the installation plate (10) as described above.

[0037] At this time, the wall fixing plate (20) is configured such that a pair of fastening holes (21) are formed in a portion corresponding to the fastening projection (13), and the fastening projection (13) provided on the front of the installation plate (10) is coupled to the fastening holes (21), thereby preventing the installation position of the wall fixing plate (20) installed on the front of the installation plate (10) from being changed.

[0038] In addition, the wall fixing plate (20) is configured such that a fastener (22) protrudes from the front center portion, and a connecting bar (30), which will be described in detail below, is detachably connected to the fastener (22).

[0039] To explain the configuration of the above-mentioned fastener (22) in detail, the fastener (22) is formed in a tubular shape with an open front and an installation groove (22a) formed in the inner center portion. A pair of guide grooves (22b) are formed facing each other, with the upper and lower portions of the inner diameter of the installation groove (22a) forming a downward slope from the front direction to the rear direction, and the portion adjacent to the rear having a locking groove (22b-1) formed therein.

[0040] This configuration is such that an installation groove (22a) with an open front is formed in the inner center portion of the fastener (22), and the rear surface of the connecting bar (30), which will be described below, is configured to be coupled to the installation groove (22a); a guide groove (22b) is formed extending from the front direction to the rear direction of the fastener (22) in the upper and lower portions of the inner diameter of the installation groove (22a), and the portion of the guide groove (22b) extending to the rear direction is formed to have a downward slope toward the inner center portion of the installation groove (22a); and a catch groove (22b-1) is formed in the rear portion of the guide groove (22b) so that the rear surface of the connecting bar (30) can be easily coupled to the installation groove (22a).

[0041] In addition, the above fastening member (22) is configured such that a contact plate (22d) connected by an elastic spring (22c) is fixed to a portion adjacent to the rear of the fastening groove (22a), and as shown in FIG. 4, the rear of the connecting bar (30) is in close contact with the contact plate (22d), and the rear of the connecting bar (30) can be coupled to the installation groove (22a).

[0042] And, as shown in FIGS. 1 to 4, the connecting bar (30) is configured in a bar shape that is detachably coupled to the installation groove (22a), and a pair of facing hooking protrusions (31) are provided on the rear edge portion to be fixed by being caught in the hooking groove (22b-1). When the rear surface of the connecting bar (30) is coupled to the installation groove (22a), the hooking protrusions (31) are coupled along the guide groove (22b) of the fastener (22), and then the hooking protrusions (31) are coupled to the hooking groove (22b-1), thereby firmly coupling the rear surface of the connecting bar (30) to the installation groove (22a) of the fastener (22). Through the elastic force of the elastic spring (22c), the front surface of the contact plate (22d) presses against the rear surface of the connecting bar (30), thereby coupling so as to be caught in the hooking groove (22b-1). The locking projection (31) is configured to maintain a solid connection with the locking groove (22b-1), thereby ensuring that the connection between the installation groove (22a) of the fastener (22) and the connecting bar (30) is maintained more securely.

[0043] In addition, as described above, a cut groove (32) is formed in the rear center portion of the connecting bar (30) so that the position of a pair of facing locking protrusions (31) can be adjusted, so that the locking protrusion (31) of the connecting bar (30) can be connected to the locking groove (22b-1) after being guided into the guide groove (22b), and a plurality of support springs (32a) connecting the cut portions are provided on the inner side of the cut groove (32).

[0044] This configuration is such that the position of a pair of locking projections (31) positioned facing each other around the cut groove (32) can be adjusted, thereby allowing the locking projection (31) to be moved along the formation direction of the guide groove (22b) and then connected to the locking groove (22b-1). After the locking projection (31) is connected to the locking groove (22b-1), the connection between the locking groove (22b-1) and the locking projection (31) can be firmly maintained through the elastic force of the support spring (32a).

[0045] In addition, as shown in FIGS. 1 to 4, the connecting bar (30) is configured with a plurality of seating holes (33) formed at regular intervals in the longitudinal direction, and the seating holes (33) are formed with a plurality of seating grooves (33a) in the inner diameter longitudinal direction to penetrate the upper and lower parts of the connecting bar (30).

[0046] The above configuration of the mounting hole (33) is such that the mounting bar (40) described below is coupled to the mounting hole (33), thereby facilitating the installation of multiple mounting materials (2) on the front surface of the wall (1).

[0047] In addition, as shown in FIGS. 1 to 4, the above-mentioned interior material fixing bar (40) is coupled to the seating hole (33) of the connecting bar (30), and the user can change the number and position of coupling to the seating hole (33) depending on the change in thickness or number of interior materials installed on the front of the wall (1).

[0048] In addition, the internal material fixing bar (40) is provided with a plurality of mounting balls (41) that are mounted and coupled to the mounting groove (33a) at the longitudinal center portion, so that when the internal material fixing bar (40) is coupled to the mounting hole (33), the mounting balls (41) are coupled to the mounting groove (33a), thereby ensuring that the coupling between the mounting hole (33) and the internal material fixing bar (40) is firmly maintained.

[0049] In addition, the above-mentioned interior material fixing bar (40) is provided with a plurality of fixing pins (42) protruding from the front surface, and as shown in FIGS. 5 to 7, when a plurality of interior materials (2) are installed on the front surface of the wall (1), the fixing pins (42) are connected to the rear surface of the interior materials (2) to firmly maintain the installation position of the interior materials (2).

[0050] Through the above configuration, as shown in FIG. 5, it is possible to conveniently install multiple interior materials (2) on the front surface of the wall (1). As shown in FIG. 6, the user can adjust the number of interior material fixing bars (40) connected to the seating hole (33) of the connecting bar (30), thereby enabling flexible response to changes in the thickness of the interior materials (2) to be installed on the front surface of the wall (1) or changes in the number of interior materials (2) to be installed. Furthermore, through the configuration of the fixing pin (42) of the interior material fixing bar (40), the installation position of the installed interior materials (2) can be firmly maintained.

[0051] Additionally, as shown in FIGS. 1 to 7, the front of the connecting bar (30) is configured with a coupling hole (34) having a coupling groove (34a) in the inner diameter adjacent to the rear, and the coupling hole (34) is further configured with an interior material support plate (50) that surrounds the front of the interior material (2) installed to surround the connecting bar (30). The interior material support plate (50) is configured in the shape of a plate in which a coupling projection (51a) that is coupled to the coupling groove (34a) is provided on the rear edge portion, a coupling bar (51) that is coupled to the coupling hole (34) is provided protruding from the rear, and a plurality of support pins (52) that are coupled to the front of the interior material (2) are provided on the upper and lower portions of the rear adjacent to the coupling bar (51).

[0052] The above configuration is configured such that when the installation plate (10), wall fixing plate (20), connecting bar (30), and interior material fixing bar (40) are installed on the front surface of the wall (1) to install multiple interior materials (2), the connecting bar (51) of the interior material support plate (50) is connected to the connecting hole (34), and then the connecting groove (34a) and the connecting projection (51a) are connected. As a result, the rear surface of the interior material support plate (50) presses against and adheres to the front surface of the interior material (2) installed through the configuration of the connecting bar (30) and the interior material fixing bar (40), thereby enabling the installation position of the interior material (2) installed on the front surface of the wall (1) to be firmly maintained.

[0053] Additionally, as shown in FIGS. 1 to 7, the connecting bar (30) is configured such that a fitting hole (35) is further formed on the longitudinal inner side adjacent to the seating hole (33), and a pair of cut lines (36) are further formed on the outer edge portion of the fitting hole (35) and the connecting bar (30). When the connecting bar (30) is separated by cutting the cut lines (36) to separate the fitting hole (35), a fitting bar (60) is further coupled to the fitting hole (35) to connect the separated portion of the connecting bar (30) by pressing it against the fitting hole (35).

[0054] To explain this configuration in detail, as shown in FIGS. 5 to 7, when installing multiple interior materials (2) on the front surface of the wall (1), depending on the shape of the building or the shape of the building wall, the number or thickness of the interior materials (2) to be installed and the installation of the interior materials (2) must be adjusted. In this case, the user cuts the connecting bar (30) around the cut line (36) so that the cut portion of the fitting groove (35) formed in the inner center of the connecting bar (30) is exposed to the outside, and then the fitting hole (35) of the cut and separated connecting bar (30) is connected to the fitting bar (60) so that the length of the connecting bar (30) to be installed can be adjusted and the installation of the interior materials (2) can be achieved.

[0055] In addition, although the present invention is illustrated and described as having three mounting holes (33) formed in the connecting bar (30), the connecting bar (30) may be configured to have three or more mounting holes (33) formed and a plurality of cut lines (36) and fitting holes (35) formed according to the user's choice, and then the connecting bar (30) may be configured to be used with adjustable length by cutting along the cut lines (36) and then fitting a bar (60) connected to the fitting holes (35).

[0056] Through the above configuration, multiple interior materials can be installed on the front of the wall (1) of the building in a convenient and efficient manner.

[0057] Although the present invention has been illustrated and described in relation to specific embodiments, it will be obvious to those skilled in the art that the present invention can be variously modified and changed without departing from the gist or scope of the invention as provided by the following claims. Explanation of the symbols

[0059] 1: Wall 2: Interior material 10: Installation plate 11: First adhesive plate 12: Second adhesive plate 13: Fastening projection 20: Wall fixing plate 21: Fastener hole 22: Fastener 22a: Installation groove 22b-1: Locking groove 22b: Guide groove 22c: Elastic spring 22d: Contact plate 23: Connecting pin 30: Connecting bar 31: Locking projection 32: Incision groove 32a: Support spring 33: Seating hole 33a: Seating groove 34: Connecting hole 34a: Connecting groove 35: Insertion hole 36: Cut line 40: Interior material fixing bar 41: Seating ball 42: Fixing pin 50: Interior material support plate 51: Connecting bar 51a: Connecting projection 52: Support pin 60: Kiumba

Claims

Claim 1 An installation plate (10) is fixedly installed on the front surface of a wall (1) of a building to which an interior material (2) is to be installed, and is provided with a first adhesive plate (11) on the rear surface corresponding to the wall (1) and a second adhesive plate (12) on the front surface, and has a pair of connecting protrusions (13) protruding from the upper and lower front surfaces facing each other, and a connecting member (22) is fixedly coupled to the front surface of the installation plate (10), and has a pair of connecting holes (21) formed in the portion corresponding to the connecting protrusions (13), and has an installation groove (22a) formed on the inner side with the front surface open at the center of the front surface, and a pair of connecting grooves (22b) are formed facing each other on the upper and lower inner surfaces of the installation groove (22a), with a downward slope from the front surface to the rear surface and a locking groove (22b-1) formed in the portion adjacent to the rear surface, and has a contact plate (22d) connected by an elastic spring (22c) protruding from the inner rear surface. A wall fixing plate (20) is provided with a plurality of connecting pins (23) protruding from the upper and lower front portions to be coupled to the rear surface of the interior material (2); a connecting bar (30) is formed in a bar shape that is detachably coupled to the installation groove (22a), with a pair of facing hooking protrusions (31) protruding from the rear edge portion to be fixed by being caught in the hooking groove (22b-1); a cut groove (32) is formed in the rear center portion to be extended in the front direction, and a plurality of supporting springs (32a) connecting the cut portions are provided in the cut portion; a plurality of seating holes (33) are formed at regular intervals, penetrating the upper and lower portions in the longitudinal direction and having a plurality of seating grooves (33a) formed in the inner diameter length direction, and after being inserted into the installation groove (22a), the hooking protrusions (31) are fixed by being caught in the hooking groove (22b-1); and a connecting bar (30) is seated in the seating groove (33a). A plurality of mounting balls (41) that are coupled are provided in a plurality of longitudinal center portions, and a plurality of fixing pins (42) that are coupled to the rear surface of the interior material (2) are provided on the front surface, and a plurality of interior material fixing bars (40) that are coupled to the mounting hole (33) are included, and after the installation plate (10), wall fixing plate (20), and connecting bar (30) are installed on the front surface of the wall (1),A fixing device for building interior materials, characterized in that when an interior material (2) is installed on the front surface of the wall fixing plate (20), the connection position and number of connection bars (40) connected to the mounting hole (33) are configured to change according to changes in the thickness or number of the interior material (2) installed. Claim 2 A fixing device for building interior materials according to claim 1, wherein a coupling hole (34) having a coupling groove (34a) is further formed on the front of the connecting bar (30) and in the inner diameter adjacent to the rear, and an interior material support plate (50) is further coupled to the coupling hole (34) to surround the front of the interior material (2) installed to surround the connecting bar (30), and the interior material support plate (50) is configured in a plate shape such that a coupling projection (51a) that is coupled to the coupling groove (34a) is provided on the rear edge portion, a coupling bar (51) that is coupled to the coupling hole (34) is provided protruding from the rear, and a plurality of support pins (52) that are coupled to the front of the interior material (2) are provided on the upper and lower portions of the rear adjacent to the coupling bar (51). Claim 3 A fixing device for interior building materials according to claim 1, wherein the connecting bar (30) further has a fitting hole (35) formed on the longitudinal inner side adjacent to the seating hole (33), a pair of cut lines (36) further formed on the outer edge portion adjacent to the fitting hole (35), and when the connecting bar (30) is separated by cutting the cut lines (36) so that the fitting hole (35) is separated, a fitting bar (60) that connects the separated portion of the connecting bar (30) by pressing it against the fitting hole (35) is further coupled thereto.

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