Ceiling earthquake resistance and vibration isolation devices

Abstract

Provision of earthquake-proof ceiling and seismic isolation devices. [Solution] This ceiling earthquake resistance and vibration isolation device includes an anchor module fixed to a ceiling slab, a hanger module supporting a ceiling structure spaced apart from the ceiling slab, a damping unit that absorbs vibrations transmitted through the anchor module or the hanger module, and a housing module that connects the anchor module and the hanger module and provides a compressive force so that the damping unit maintains a compressed state compressed from its initial state.

Description

Technical Field

[0001] The present invention relates to a ceiling seismic and shock isolation device, and more particularly to a ceiling seismic and shock isolation device with an improved structure.

Background Art

[0002] Generally, various wirings for electrical work and various installations such as ventilation ducts are constructed on the ceilings of buildings, factories, etc., so the aesthetics are poor in appearance, and ceiling panels that block various facilities are to be constructed.

[0003] Most of the ceiling panels constructed in this way are constructed by installing support bars in anchor insertion parts fixed to the ceiling slab and placing the ceiling panels on the support bars.

[0004] However, in the case of ceiling panels constructed on indoor ceilings, they are constructed without considering seismic design at all. Therefore, when natural disasters such as earthquakes or typhoons occur and vibrations or strong impacts caused by the natural disasters are directly transmitted to the entire building, the vibrations or strong impacts directly act on the ceiling panels constructed, and the structure fixing the ceiling panels is separated from the ceiling slab, resulting in a problem of causing a major accident that collapses the ceiling panels.

[0005] In addition, the falling off of the ceilings of such buildings is a major cause of casualties and property damage. In order to reduce the damage caused by such falling off, the existing technology has been carried out at the level of simply fixing the accessories constituting the ceiling. This technology has no energy absorption ability against introduced earthquakes, and there is no substantial seismic resistance effect of the main accessories particularly against lateral movement, so it becomes a problem.

Summary of the Invention

Problems to be Solved by the Invention

[0006] One aspect of the present invention is to provide a ceiling seismic and shock isolation device with an improved structure.

[0007] One aspect of the present invention provides a ceiling seismic and vibration isolation device that can effectively absorb external forces.

[0008] One aspect of the present invention provides a ceiling seismic and vibration isolation device that can effectively absorb external forces in the horizontal and vertical directions.

[0009] One aspect of the present invention provides a ceiling seismic and vibration isolation device that absorbs energy introduced from seismic loads, improves the binding force of accessories, and prevents the ceiling system from falling off.

Means for Solving the Problems

[0010] The ceiling seismic and vibration isolation device according to the idea of the present invention includes an anchor module fixed to a ceiling slab; a hanger module that supports a ceiling structure separated from the ceiling slab; a damping unit that absorbs vibrations transmitted through the anchor module or the hanger module; and a housing module that connects the anchor module and the hanger module, and the housing module provides a compressive force so that the damping unit maintains a compressed state from an initial state.

[0011] The housing module can be configured to maintain the damping unit in the compressed state together with the restraint on the anchor module and the hanger module.

[0012] The housing module includes a housing body; first and second housing covers disposed on the upper and lower portions of the housing body, and the first and second housing covers form an arrangement space together with the housing body. The anchor module and the hanger module include an anchor bolt and a hanger bolt that penetrate the first and second housing covers; and first and second mounting portions respectively connected to the anchor bolt and the hanger bolt, and the first and second mounting portions are disposed in the arrangement space.

[0013] At least one of the first and second housing covers is detachably coupled to the housing body, and a preset compressive force can be provided to the damping unit through the coupling of the at least one housing cover to the housing body.

[0014] The housing body may include an insertion groove formed to be recessed on its inner surface so that the at least one housing cover is detachably coupled.

[0015] The first housing cover is coupled to the housing body such that the isolation distance from the second housing cover is variable, and the damping unit may be configured such that the compressive force is adjusted according to the coupling position of the first housing cover with respect to the housing body.

[0016] The housing body may include a pressure adjustment portion formed along the housing body so that the coupling position of the first housing cover is variable.

[0017] The pressure adjustment portion includes a plurality of insertion grooves formed to be recessed along the inner surface of the housing body and spaced apart from each other along the length direction of the housing body, and the first housing cover may be selectively inserted and coupled to any one of the plurality of insertion grooves so that the compressive force of the damping unit is adjusted.

[0018] The pressure adjustment portion includes a thread groove formed along the inner surface of the housing body, and the first housing cover may include a coupling protrusion formed in a shape of a thread protrusion whose circumference corresponds to the thread groove so as to be movable in the pressure adjustment portion.

[0019] The damping unit may further include a contact damping member interposed between the anchor module and the hanger module.

[0020] Although the contact damping member is interposed between the first and second mounting portions, it can be configured to cover the contact surfaces of the opposing first and second mounting portions.

[0021] The anchor module and the hanger module can be connected to the housing module such that the anchor bolt and the hanger bolt have the same center line.

[0022] The anchor module and the hanger module can be connected to the housing module such that the periphery of the first and second mounting portions is spaced apart from the inner surface of the housing body.

[0023] The damping unit includes a damping member that elastically supports the hanger module with respect to the housing module; the damping member includes an elastic plate disposed between the second mounting portion of the hanger module and the second housing cover disposed at the lower part of the housing body; and a plurality of elastic protrusions protruding from the elastic plate to elastically support the hanger module and the second housing cover.

[0024] The elastic plate is disposed at a certain distance from the second mounting portion and the second housing cover so as to form a separation space, and the plurality of elastic protrusions can be disposed in the separation space such that the second mounting portion and the second housing cover are elastically supported.

[0025] The plurality of elastic protrusions can be formed to protrude from the elastic plate at the same height such that the second mounting portion and the second housing cover are separated from the elastic plate by the certain distance.

[0026] The plurality of elastic protrusions can be arranged to be separated from each other by the elastic plate.

[0027] The plurality of elastic protrusions can be arranged to be separated at the same radius distance from the center of the elastic plate.

[0028] The housing module may further include a stopper configured to be fixed to the inner surface of the housing body to limit excessive movement of the hanger module.

[0029] The ceiling seismic and anti-vibration device according to the idea of the present invention includes an anchor module fixed to a ceiling slab; a hanger module supporting a ceiling structure separated from the ceiling slab; a damping unit that absorbs vibrations transmitted through the anchor module or the hanger module; and a housing module that connects the anchor module and the hanger module. The housing module includes a housing body; first and second housing covers disposed on the upper and lower portions of the housing body and forming an arrangement space together with the housing body, and at least one of the housing covers is detachably coupled to the housing body. The at least one housing cover is configured to provide a compressive force to the damping unit through connection to the housing body.

[0030] The housing body may include an insertion groove formed to be recessed in its inner surface so that the at least one housing cover is detachably coupled thereto.

[0031] The first housing cover is coupled to the housing body such that the isolation distance from the second housing cover is variable, and the damping unit may be configured such that the compressive force is adjusted according to the coupling position of the first housing cover with respect to the housing body.

[0032] The housing body may include a pressure adjustment portion formed along the housing body so that the coupling position of the first housing cover is variable.

[0033] The pressure adjustment part is formed to be recessed along the inner surface of the housing body, and includes a plurality of insertion grooves that are spaced apart from each other along the length direction of the housing body; The first housing cover can be selectively inserted and coupled to any one of the plurality of insertion grooves so that the compression force of the damping unit is adjusted.

[0034] The pressure adjustment part includes a thread groove formed along the inner surface of the housing body; The first housing cover can include a coupling protrusion formed in a shape of a thread protrusion whose circumference corresponds to the thread groove so that the pressure adjustment part can be moved.

Advantages of the Invention

[0035] According to one aspect of the present invention, the energy absorption ability can be maximized by using a damping unit.

[0036] According to one aspect of the present invention, it can have effective resistance to vibration and lateral deformation by improving the coupling force of each unit through elastic force.

[0037] According to one aspect of the present invention, the ceiling seismic and anti-seismic devices can be modularized to minimize on-site installation and improve constructability with simple connection details.

[0038] According to one aspect of the present invention, the energy introduced from seismic loads can be absorbed by using a damping unit that absorbs energy, and the coupling force of accessories can be improved to prevent the ceiling system from falling off.

[0039] According to one aspect of the present invention, a set anchor with high shear resistance is applied to the ceiling seismic and anti-seismic devices, and it can be stably installed in a long-term environment.

Brief Description of the Drawings

[0040]

Figure 1

Figure 2a

Figure 2b

Figure 3

Figure 4

Figure 5

Figure 6a

Figure 6b

Figure 7a

Figure 7b

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Best Mode for Carrying Out the Invention

[0041] The embodiments described in this specification and the configurations illustrated in the drawings are merely a preferred example of the disclosed invention, and there can be various modifications that can replace the embodiments and drawings of this specification at the time of filing this application.

[0042] Also, the same reference numbers or symbols presented in each drawing of this specification indicate components or constituent elements that perform substantially the same function.

[0043] Also, the terms used in this specification are used to explain the embodiments and are not intended to limit and / or restrict the disclosed invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as "including" or "having" are intended to specify the presence of the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, and do not preclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0044] Also, terms including ordinal numbers such as "first", "second", etc. used in this specification can be used to describe various components, but the components are not limited by the terms, and the terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the rights of the present invention, the first component can be named the second component, and similarly, the second component can also be named the first component. The term "and / or" includes combinations of a plurality of related described items or any one of a plurality of related described items.

[0045] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the following drawings attached to this specification illustrate preferred embodiments of the present invention and serve to further understand the technical idea of the present invention together with the content of the invention described above. Therefore, the present invention should not be construed as being limited only to the matters described in such drawings.

[0046] FIG. 1 is a drawing in which a ceiling seismic and vibration isolation device according to an embodiment of the present invention is installed on a ceiling.

[0047] The ceiling seismic and vibration isolation device (1, hereinafter referred to as "ceiling device 1") can be configured to connect the ceiling slab S and the ceiling structure P. In this embodiment, the ceiling device 1 is fixed to the ceiling slab S, and an example is given of supporting the ceiling panel, but it is not limited thereto. The ceiling structure P can include structures arranged adjacent to slabs and beams such as ceiling panels, ceiling-mounted air conditioners, and pipes. Further, the ceiling structure P can include a carrying channel (refer to FIGS. 10 and 11, 92), a minor channel (refer to FIGS. 10 and 11, 94), etc. that support the corresponding structure.

[0048] In this embodiment, for convenience of explanation, it is described that the ceiling device 1 is installed on the ceiling slab S and the ceiling structure P supported by the ceiling device 1 is a ceiling panel. The ceiling device 1 is arranged between the ceiling slab S and the ceiling structure P and can absorb vibration or external force or support both components. A plurality of ceiling devices 1 can be provided and arranged at intervals from each other between the ceiling slab S and the ceiling structure P. The plurality of ceiling devices 1 can be arranged so as to have an interval of 600 to 900 mm from each other between the ceiling slab S and the ceiling structure P. However, the arrangement interval and arrangement method of the ceiling devices 1 are not limited and can be appropriately deformed in consideration of the installation environment or the weight of the ceiling panel.

[0049] In the installation of the ceiling device 1, the detailed configuration described later can be pre-manufactured and assembled. That is, the ceiling device 1 can be manufactured as one module by combining the anchor module 10, the hanger module 20, the damping member 42, and the housing module 30.

[0050] By modularizing the ceiling device 1 in this way, when installing the ceiling seismic and shock isolation device, the pre-manufactured ceiling device 1 can be assembled or combined to improve the convenience of construction.

[0051] Figures 2a, 2b, and 3 are cross-sectional views of the ceiling seismic and shock isolation device according to an embodiment of the present invention, and Figure 4 is an exploded perspective view of the ceiling seismic and shock isolation device according to an embodiment of the present invention.

[0052] The ceiling device 1 can be configured to connect the ceiling slab S and the ceiling structure P separated from the ceiling slab S. The ceiling device 1 is disposed between the ceiling slab S and the ceiling structure P and can effectively absorb vibrations or external forces. Further, the ceiling device 1 can absorb lateral vibrations or external forces and vertical vibrations or external forces.

[0053] The ceiling device 1 can include an anchor module 10, a hanger module 20, a damping unit 40, and a housing module 30.

[0054] The housing module 30 is configured to form an arrangement space 33 inside, and the anchor module 10 described later, the mounting portion of the hanger module 20, and the damping unit 40 can be disposed in the arrangement space 33. The housing module 30 can include a housing body 32 and first and second housing covers 34 and 36.

[0055] The housing body 32 can be formed in a substantially cylindrical shape, and openings 32a and 32b that are open for mounting the anchor module 10 and the hanger module 20 can be formed at the top and bottom, respectively. The first and second housing covers 34 and 36 can be respectively arranged on the upper opening 32a and the lower opening 32b of the housing body 32, and through this, the external space and the arrangement space 33 of the housing module 30 can be partitioned. The arrangement space 33 can be formed by the housing module 30 and the first and second housing covers 34 and 36 described later. Also, through the first and second housing covers 34 and 36 fixed to the housing body 32, a compressive force can be provided to the damping unit 40 as described later. In this embodiment, the first and second housing covers 34 and 36 are taken as an example of being detachably coupled to the housing body 32, but it is not limited thereto. At least one of the first and second housing covers 34 and 36 may be integrally formed with the housing body 32. In this embodiment, the first and second housing covers 34 and 36 are taken as an example of performing both the function of covering the housing module 30 and the function of compressing the damping unit 40, but this is not limited. The first and second housing covers 34 and 36 only need to perform the function of compressing the damping unit 40, and the function of forming the arrangement space 33 may be performed through a separate configuration.

[0056] The first housing cover 34 and the second housing cover 36 can be formed to be spaced apart at a certain interval. In this embodiment, the first housing cover 34 and the second housing cover 36 are fixedly coupled to the housing body 32, and the spaced interval is constant as an example, but it is not limited thereto. For adjusting the arrangement space 33 or adjusting the compressive force of the damping unit 40, the mounting position of either one of the first housing cover 34 and the second housing cover 36 with respect to the housing body 32 may be configured to be variable.

[0057] The first housing cover 34 and the second housing cover 36 can be configured to have a ring shape. The first housing cover 34 and the second housing cover 36 can be configured such that their outer diameters are elastically variable for connection to the housing body 32. Specifically, the first housing cover 34 and the second housing cover 36 are formed in a ring shape with one side open, and the gripping holes 34d and 36d formed at both ends can be gripped through a separate mechanism to vary the outer diameters of the first housing cover 34 and the second housing cover 36. Through this, the first housing cover 34 and the second housing cover 36 can be respectively inserted into the insertion grooves 34c and 36c formed in the housing body 32. After the first housing cover 34 and the second housing cover 36 are inserted, they can elastically return and be inserted and fixed around the insertion grooves 34c and 36c. However, the specific shapes of the first housing cover 34 and the second housing cover 36 are not limited, and any configuration that can be coupled to be fixed on the housing body 32 will satisfy this. The materials of the first housing cover 34 and the second housing cover 36 are not limited. As an example, they may be formed of a steel plate or may be formed of an elastic material. The diameters of the first and second housing covers 34 and 36 can be 10 to 110 mm. Also, the thickness of the housing body 32 is formed to be 2 to 5 mm, and the insertion grooves 34c and 36c into which the first and second housing covers 34 and 36 are inserted are smaller than the thickness of the housing body 32 but can be formed to have a depth of 1 to 3 mm. However, their dimensions are not limited.

[0058] The first and second housing covers 34 and 36 can respectively include first and second through holes 34a and 36a formed such that the anchor bolts 12 of the anchor module 10 and the hanger bolts 22 of the hanger module 20, which will be described later, can pass through. Also, the first and second housing covers 34 and 36 can include first and second pressing surfaces 34b and 36b that are arranged to face the first mounting portion 14 of the anchor module 10, which will be described later, and the damping unit 40, and are in close contact with and press the corresponding configuration. The first pressing surface 34b can mean the lower surface of the first housing cover 34, and the second pressing surface 36b can mean the upper surface of the second housing cover 36.

[0059] The anchor module 10 can be configured such that the ceiling device 1 is fixed to the ceiling slab S. The anchor module 10 can include an anchor bolt 12 and a first mounting portion 14 formed at one end of the anchor bolt 12. The anchor bolt 12 can be configured to be exposed at the upper part of the housing module 30 and installed in the ceiling hole Sa. For this purpose, a thread can be formed on the outer surface of the anchor bolt 12. The anchor bolt 12 can be arranged on the center line c of the ceiling device 1 so that no lateral eccentricity acts on the device. At least one anchor bolt 12 can be configured, and when a plurality of anchor bolts 12 are configured, the centers of the plurality of anchor bolts 12 can be configured to be arranged on the center line c. The diameter of the anchor bolt 12 can be 8 to 16 mm. However, its dimensions are not limited.

[0060] As shown in FIG. 2a, a high-shear resistance set anchor 12a may be applied to the anchor bolt 12, or as shown in FIG. 2b, a chemical anchor (registered trademark) 12b may be applied. For the drawings not separately distinguished, the chemical anchor (registered trademark) 12b will be taken as an example.

[0061] For the high-shear resistance set anchor 12a in FIG. 2a, a diameter of 8 to 24 mm and a length of 25 to 200 mm can be applied. The high-shear resistance set anchor 12a can include a bolt 12aa, a nut 12ab, and an anchor clip 12ac formed on the bolt 12aa. After the set anchor 12a is inserted into the ceiling hole Sa, the anchor clip 12ac can be expanded to fix the ceiling seismic and anti-vibration device to the ceiling slab S. Also, by such expansion, the shear resistance performance of the ceiling seismic and anti-vibration device against the ceiling slab S can be significantly improved.

[0062] The chemical anchor (registered trademark) 12b in Fig. 2b can have a diameter of 8 to 24 mm and a length of 25 to 200 mm. The chemical anchor (registered trademark) 12b can be arranged to be embedded in the ceiling slab S. The chemical anchor (registered trademark) 12b can include a bolt 12ba and a nut 12bb. The chemical anchor (registered trademark) 12b can be fixed by inserting it after injecting epoxy mortar with excellent adhesion performance into the ceiling hole Sa of the ceiling slab S.

[0063] The first mounting part 14 can be arranged at the end of the anchor bolt 12. The first mounting part 14 can be formed in a plate shape and can be configured to have a larger circumference than around the anchor bolt 12. As an example, the first mounting part 14 can be configured in a plate shape perpendicular to the anchor bolt 12. The first mounting part 14 can be detachably coupled to the anchor bolt 12 or may be integrally formed with the anchor bolt 12. Specifically, the first mounting part 14 may be coupled to be fixed to the anchor bolt 12 through a nut as shown in Fig. 2, may engage the anchor bolt 12 as shown in Fig. 3, or may be integrally formed with the anchor bolt 12. The nut in Fig. 2 can be a configuration of the first mounting part 14.

[0064] The first mounting part 14 can be arranged in the arrangement space 33 such that one surface thereof faces the first pressing surface 34b of the first housing cover 34. That is, one surface of the first mounting part 14 can be brought into close contact with and pressed against the first pressing surface 34b. Further, the first mounting part 14 can be configured such that its periphery is larger than the first through hole 34a of the first housing cover 34 so that it can be stably positioned inside the first housing cover 34. In this embodiment, the first through hole 34a and the first mounting part 14 are formed in a circular shape, and the first mounting part 14 can be formed with a diameter larger than that of the first through hole 34a. However, the shape of the first through hole 34a and the first mounting part 14 is not limited, and any configuration that prevents the first mounting part 14 from detaching to the outside through the first through hole 34a satisfies this requirement. The thickness of the first mounting part 14 can be 2 to 30 mm, and its diameter can be 10 to 110 mm. However, its dimensions are not limited. The anchor bolt 12 can be coupled to a hole formed in the first mounting part 14, and a thickness of 2 to 30 mm and a diameter of 8 to 24 mm can be applied to the hole. Threads for coupling the anchor bolt 12 can be formed on the inner surface of the hole.

[0065] The hanger module 20 can be configured such that the ceiling device 1 supports the ceiling structure P. The hanger module 20 can include a hanger bolt 22 and a second mounting part 24 formed at one end of the hanger bolt 22. The hanger bolt 22 is exposed at the lower part of the housing module 30, and the ceiling structure P can be placed or supported through a separate structure. The hanger bolt 22 can be arranged on the center line c of the ceiling device 1 so that lateral eccentricity of the ceiling device 1 does not act. That is, the anchor module 10 and the hanger module 20 can be configured such that their center lines c coincide with each other. Specifically, the anchor bolt 12 of the anchor module 10 and the hanger bolt 22 of the hanger module 20 can be arranged on the same line. Through this, the ceiling device 1 can minimize eccentricity generation with respect to vibration or external force transmitted from the outside, and can effectively reduce or absorb it.

[0066] The second mounting part 24 can be arranged at the end of the hanger bolt 22. The second mounting part 24 can be formed in a plate shape and can be configured to have a larger circumference than around the hanger bolt 22. As an example, the second mounting part 24 can be configured in a plate shape perpendicular to the hanger bolt 22. The second mounting part 24 can be detachably coupled to the hanger bolt 22 or may be integrally formed with the hanger bolt 22. Specifically, the second mounting part 24 may be coupled to be fixed to the hanger bolt 22 through a nut as shown in FIG. 2, or may be integrally formed with the hanger bolt 22 as shown in FIG. 3. The nut in FIG. 2 can be a configuration of the second mounting part 24.

[0067] The second mounting part 24 is arranged in the arrangement space 33 and can be configured such that one surface thereof corresponds to one surface of the first mounting part 14. The second mounting part 24 may be configured to be in direct contact with the first mounting part 14, or may be configured such that a contact damping member 50 described later is arranged therebetween as shown in FIGS. 2 and 3. The second mounting part 24 is formed in a circular shape corresponding to the shape of the first mounting part 14, but its shape is not limited. The thickness of the second mounting part 24 can be 2 to 10 mm, and its diameter can be 10 to 110 mm. However, its dimensions are not limited.

[0068] The first and second mounting parts 14 and 24 can be configured such that their circumferences are separated from the inner surface of the housing body 32. That is, the outer diameters of the first and second mounting parts 14 and 24 can be configured to be smaller than the inner diameter of the housing body 32. In this way, the first and second mounting parts 14 and 24 and the housing body 32 can form a clearance space therebetween. Through this, even when lateral movement of the first and second mounting parts 14 and 24 occurs due to an external force or vibration in the ceiling device 1, the first and second mounting parts 14 and 24 can not affect the housing body 32, and a clearance space for the movement of the corresponding configuration can be formed.

[0069] The damping unit 40 can be configured to absorb an external force transmitted from outside the ceiling unit 1. For this purpose, the damping unit 40 can be formed of an elastic material. The damping unit 40 can be arranged on the arrangement space 33 of the housing module 30 to absorb vibrations or external forces transmitted between the components of the ceiling unit 1.

[0070] The damping unit 40 can include a damping member 42. The damping member 42 can include a substantially plate-shaped rubber material. The damping member 42 can be arranged between the second mounting portion 24 and the second housing cover 36. However, the arrangement of the damping member 42 is not limited. As an example, it may be arranged between the first mounting portion 14 and the first housing cover 34, or may be arranged between the first and second mounting portions 14 and 24.

[0071] Since the damping member 42 is made of an elastic material, stable adhesion to the second mounting portion 24 and the second housing cover 36 is possible as described later, and it can have a stable resistance effect against vibrations.

[0072] The damping member 42 can include an elastic plate 44 and at least one elastic protrusion 46. The elastic plate 44 can be configured to correspond to the second mounting portion 24 and the second housing cover 36. Although the elastic plate 44 is arranged between the lower surface of the second mounting portion 24 and the upper surface of the second housing cover 36, it can be configured to be spaced apart from these components by a certain distance. The shape and size of the elastic plate 44 can be configured to correspond to the lower surface of the second mounting portion 24 and the upper surface of the second housing cover 36. The elastic plate 44 can be configured in the form of a plate with a certain thickness.

[0073] At least one elastic protrusion 46 is formed to protrude from the elastic plate 44 and can be configured to elastically support at least one of the second mounting portion 24 and the second housing cover 36. The elastic protrusion 46 can be configured on the elastic plate 44 so that the elastic plate 44 and the second mounting portion 24 or the elastic plate 44 and the second housing cover 36 maintain a separated state from each other. That is, the elastic plate 44 and the second mounting portion 24 or the elastic plate 44 and the second housing cover 36 form a separation space therebetween, and the elastic protrusion 46 can be configured to be disposed in the separation space.

[0074] The elastic protrusion 46 can include a first elastic protrusion 46a protruding from one side surface of the elastic plate 44 and a second elastic protrusion 46b protruding from the other side surface of the elastic plate 44.

[0075] A plurality of elastic protrusions 46 are configured and can be arranged at regular intervals from each other on the elastic plate 44 as shown in FIG. 4. That is, a plurality of first elastic protrusions 46a and a plurality of second elastic protrusions 46b can be configured respectively. The plurality of elastic protrusions 46 and the elastic plate 44 can reduce vibrations transmitted from the outside of the ceiling device 1 to the ceiling structure P. The plurality of elastic protrusions 46 can be arranged in a substantially circular array around the center line c on the elastic plate 44. The plurality of elastic protrusions 46 may be configured in a single row arrangement as shown in FIG. 4, or may be configured in a plurality of rows. When the plurality of elastic protrusions 46 are arranged in a plurality of rows, it can include a first row formed at the same radius distance from the center of the elastic plate 44 and a second row formed outside thereof. By arranging the plurality of elastic protrusions 46 in a circular array around the center line c, stable reduction is possible even for deflected vibrations separated from the center line, and a structure such as a ceiling panel can be stably supported. The thicknesses of the elastic plate 44 and the plurality of elastic protrusions 46 are not limited, and the thicknesses of the plurality of elastic protrusions 46 and the elastic plate 44 can be, for example, 10 to 40 mm.

[0076] The damping member 42 can include an elastic holder 45.

[0077] The elastic holder 45 can be formed on the elastic plate 44. The elastic plate 44 can form a hole having a diameter of 5 to 90 mm at its central portion, and the elastic holder 45 can be coupled to the hole. The elastic holder 45 may be integrally formed with the elastic plate 44 or may be separably coupled.

[0078] A hollow portion passing through the center of the elastic holder 45 may be formed so that the hanger bolt 22 passes through it. When the damping member 42 supports the hanger module 20 through this, the plurality of elastic protrusions 46 may elastically support the second mounting portion 24, and the elastic holder 45 may be configured to elastically support the hanger bolt 22. The elastic holder 45 can be formed long in the longitudinal direction of the hanger bolt 22, thereby achieving stable support of the hanger bolt 22.

[0079] The damping unit 40 can include a mounting plate 48. The mounting plate 48 may be a component of the damping member 42. The mounting plate 48 can be configured to be interposed between the elastic protrusions 46 of the damping member 42 and the second housing cover 36. Specifically, one surface of the mounting plate 48 can be in close contact with at least one elastic protrusion 46 formed at the lower part of the damping member 42, and the other surface can be configured to be in close contact with and pressed against the second pressing surface 36b of the second housing cover 36. The mounting plate 48 can make the external force applied to the damping member 42 through the second housing cover 36 or transmitted to the second housing cover 36 through the damping member 42 be uniformly dispersed and transmitted. Also, the mounting plate 48 can be configured such that its periphery is larger than the second through hole 36a of the second housing cover 36 so that it can be stably positioned inside the second housing cover 36. In this embodiment, the second through hole 36a and the mounting plate 48 are formed circularly, and the mounting plate 48 can be formed with a diameter larger than that of the second through hole 36a. However, the shapes of the second through hole 36a and the mounting plate 48 are not limited, and any configuration that prevents the mounting plate 48 from detaching outside through the second through hole 36a satisfies this requirement. In this embodiment, the damping member 42 of the damping unit 40 is illustrated and described as being supported by the second housing cover 36 through the mounting plate 48. However, it is not limited to this, and the mounting plate 48 can be omitted. In this case, at least one second elastic protrusion 46 of the damping member 42 can be directly in close contact with and pressed against the second pressing surface 36b of the second housing cover 36.

[0080] The ceiling device 1 can include a contact damping member 50. The contact damping member 50 can be a component of the damping unit 40. The contact damping member 50 can be formed of a plate-shaped elastic material. The contact damping member 50 can be arranged to be interposed between the first mounting portion 14 of the anchor module 10 and the second mounting portion 24 of the hanger module 20. That is, one surface of the contact damping member 50 can be configured to contact the lower surface of the first mounting portion 14, and the other surface of the contact damping member 50 can be configured to contact the upper surface of the second mounting portion 24. Also, one surface and the other surface of the contact damping member 50 can be configured to cover the contact surfaces of the first and second mounting portions 14 and 24 that face each other. Through this, the contact damping member 50 can stably and elastically support the first and second mounting portions 14 and 24. Since the contact damping member 50 is made of an elastic material, stable adhesion to the first and second mounting portions 14 and 24 is possible, and it can have a stable resistance effect against vibration. Since the shape and size of the contact damping member 50 are configured to correspond to the first and second mounting portions 14 and 24, wear or damage due to friction between the first and second mounting portions 14 and 24 can be prevented, and a stable vibration reduction effect can be achieved. The damping member 42 described above may be defined as the first damping member, and the contact damping member 50 may be defined as the second damping member. In this embodiment, for the sake of convenience of explanation, the damping member 42 and the arrangement of the contact damping member 50 have been described, but their arrangements and configurations are not limited. As an example, the contact damping member 50 may be arranged between the second mounting portion 24 and the second housing cover 36, and the damping member 42 may be arranged between the first and second mounting portions 14 and 24. Also, all the damping configurations may be composed of only the damping member 42 or only the contact damping member 50. Also, although an example is given where one damping member 42 or one contact damping member 50 is arranged in the arrangement space 33, the number is not limited, and a plurality of damping members 42 or contact damping members 50 may be configured and arranged to be laminated with each other, or they may be laminated alternately with different types.When the damping member 42 and the contact damping member 50 are arranged to be laminated in this way, a composite elastic force corresponding to vibration or seismic force can be imparted, and the durability against external forces in the horizontal and vertical directions of the damping member 42 can be improved through the frictional force between them, and the absorption of external forces can be effectively achieved. The thickness of the contact damping member 50 can be 2 to 10 mm, and its dimensions are not limited.

[0081] The ceiling device 1 can include a stopper 38. The stopper 38 can be configured to limit excessive movement of the hanger module 20. The stopper 38 can be configured to prevent the hanger module 20 from falling off the housing module 30 due to the complete combustion of the damping unit 40 during a fire. The stopper 38 can be inserted and fixed into a coupling groove c formed on the inner surface of the housing body 32. The upper surface of the stopper 38 can be configured to be spaced apart from the second mounting portion 24 by a certain distance. Through this, during the process of compressing the damping unit 40, the movement of the second mounting portion 24 is not interfered with, and when the damping unit 40 supporting the second mounting portion 24 is completely burned and the hanger module 20 moves downward, the second mounting portion 24 of the hanger module 20 can be supported. The stopper 38 can be coupled to the housing body 32 through a gripping hole 38d in the same manner as the first and second housing covers 34 and 36. However, its shape is not limited, and it is satisfied as long as it is arranged on the housing body 32 and configured to limit excessive movement of the hanger module 20.

[0082] FIG. 5 is a drawing related to the assembly of the ceiling seismic and anti-vibration device according to an embodiment of the present invention.

[0083] As shown in FIG. 5(a), the second housing cover 36 can be fixedly coupled to the insertion groove 36c by being elastically compressed and elastically restored in the housing body 32. Thereafter, as shown in FIG. 5(b), the mounting plate 48 and the damping member 42 can be arranged on the upper surface of the second housing cover 36.

[0084] As shown in Fig. 5(c), a stopper 38 can be installed on the housing body 32 where the damping member 42 is disposed. The stopper 38 can be installed to prevent the hanger bolt 22 from falling off due to the complete combustion of the damping member 42 during a fire.

[0085] Thereafter, as shown in Fig. 5(d), the hanger module 20, the contact damping member 50, and the anchor module 10 can be sequentially coupled.

[0086] Thereafter, as shown in Fig. 5(e), the first housing cover 34 can be fixedly coupled to the insertion groove 34c through elastic compression and elastic restoration to the housing body 32. The first housing cover 34 can be configured to apply a pressing force to the damping unit 40 in the process of coupling the first housing cover 34 to the housing body 32. That is, although the housing module 30 connects the anchor module 10 and the hanger module 20, a compressive force can be provided so that the compressed state in which the damping unit 40 of the ceiling device 1 is compressed from the initial state is maintained. That is, the housing module 30 can be configured to maintain the compressed state of the damping unit 40 of the ceiling device 1 while restraining the anchor module 10 and the hanger module 20.

[0087] The first housing cover 34 and the second housing cover 36 are coupled and attached to insertion grooves 34c and 36c formed in the housing body 32, and can connect the anchor module 10 and the hanger module 20 to the housing module 30, and can pressurize the damping unit 40 disposed therein. In FIGS. 2 and 3, since the first housing cover 34 and the second housing cover 36 are coupled and fixed to the insertion grooves 34c and 36c at preset positions in the housing body 32, the damping unit 40 can be configured to provide a preset compressive force. The preset compressive force can be 5 to 30% of the tensile force of the damping unit 40. However, it is not limited thereto, and the compressive force may be configured to be variable as in the embodiments described later. The compressive force applied to the damping unit 40 in this way can improve the lateral resistance and energy dissipation ability of the damping unit 40 to effectively resist seismic loads. Also, through such a configuration, the damping unit 40 can increase the frictional force with adjacent components and improve the shear elasticity of the damping unit 40. As a result, by maintaining the damping unit 40 in a compressed state, the seismic performance of the ceiling device 1 can be improved. The assembly order of the ceiling device 1 in FIG. 5 is merely an example, and it goes without saying that the order may be different.

[0088] Hereinafter, the design of the ceiling seismic and shock isolation device of the present invention will be described.

[0089] The endurance (T sd ) of the damping unit 40 is based on elastic design, but the tensile load (T sa ) of the anchor bolt 12 is designed to be within 40% of T sd . Also, the connection parts of the housing body 32 and the first and second housing covers 34 and 36 must ensure safety against deformation due to the tensile load of the anchor bolt 12. As a result, T sa can be shown as follows according to the design standard code KDS 41 31 00 (2019).

[0090]

Equation

[0091] Here, A a represents the total cross-sectional area of the anchor bolts, and f ya represents the yield strength of the anchor bolts. The first and second housing covers 34 and 36 fixed to the housing body 32 are designed to satisfy a bending deformation of 1 mm or less due to the tensile force generated by the formula (1) converted by the uniformly distributed load, and can be shown as follows.

[0092]

Equation

[0093] Here, Δc is the sag amount of the snap ring protruding from the unit case, W sa is the value obtained by converting T sa to the uniformly distributed load with respect to the diameters of the first and second housing covers 34 and 36, l is the protruding length from the inner surface of the housing body 32 of the first and second housing covers 34 and 36 toward the center line c, b is the width of the first and second housing covers 34 and 36, t is the thickness of the first and second housing covers 34 and 36, and E represents the elastic modulus of the first and second housing covers 34 and 36. The anchor module 10 is coupled to the housing body 32 using the first and second housing covers 34 and 36, and the tensile force (T c ) of the housing body 32 must also be larger than T sa , so it can be shown as follows.

[0094]

Equation

[0095] Here, A c represents the cross-sectional area of the housing body 32, and f yc represents the yield strength of the housing body 32. Since the hanger bolt 22 is designed to have the same details as the anchor bolt 12 inserted into the slab, the tensile force (T hb) can be shown as follows.

[0096]

Number

[0097] Here, A hb is the total cross-sectional area of the hanger bolt, and f yhb means the yield strength of the hanger bolt.

[0098] Through such a design, a stable design of the anchor module 10, hanger module 20, damping unit 40, and housing module 30 is possible.

[0099] Hereinafter, the connection or installation of the ceiling seismic and vibration isolation device of the present invention will be described.

[0100] Figs. 6a to 11 are drawings related to the construction method of the ceiling seismic and vibration isolation device according to an embodiment of the present invention.

[0101] The ceiling device 1 can be configured to be pre-manufactured and modularized and only installed on-site as shown in Fig. 5.

[0102] As shown in Figs. 6a and 6b, anchor holes Sa can be formed so that the anchor bolts 12 can be inserted into the ceiling slab S. As shown in Fig. 6b, when the chemical anchor (registered trademark) 12b is applied, epoxy mortar can be injected into the anchor holes Sa for the anchor bolts 12.

[0103] As shown in Figs. 7a and 7b, the pre-manufactured anchor bolts 12 of the ceiling device 1 can be inserted into the anchor holes Sa to fix the ceiling device 1 to the ceiling slab S.

[0104] Specifically, as shown in Fig. 7a, when the set anchor 12a is applied, after the anchor bolt 12 is inserted into the anchor hole Sa, the anchor clip 12c can be expanded through the nut 12ab to be fixed to the ceiling slab S.

[0105] Also, as shown in FIG. 7b, when the chemical anchor (registered trademark) 12b is applied, the anchor bolt 12 can be inserted with the injected epoxy mortar and fixed to the ceiling slab S through the chemical anchor (registered trademark) 12b and the nut 12ab.

[0106] The method of inserting the anchor bolt 12 into the anchor hole Sa is not limited, and it is satisfied as long as the anchor bolt 12 is inserted and fixed into the anchor hole Sa and the ceiling device 1 is fixed to the ceiling slab S.

[0107] As shown in FIGS. 8 to 11, after fixing the ceiling device 1 to the ceiling slab, the ceiling structure can be installed.

[0108] Specifically, as shown in FIG. 8, in order to limit the lateral movement of the ceiling structure, the molding 90 can be installed on the wall surface. The hanger module 20 can include a hanger unit 26 formed in a hook shape on the hanger bolt 22 for placing the ceiling structure. The hanger unit 26 can be fixed on the hanger bolt 22 as shown in FIG. 9.

[0109] Thereafter, as shown in FIGS. 10 and 11, ceiling structures such as the carrying channel 92, the minor channel 94, the minor channel clip 94a, the M bar 96, the M bar clip 96a, and the ceiling panel 97 can be connected to the hanger unit 26 of the hanger module 20. FIGS. 6 to 11 illustrate an example in which the ceiling structure is fixedly placed on the ceiling device 1, and the ceiling structure can include structures such as piping and lighting fixtures as required.

[0110] Hereinafter, other embodiments of the ceiling seismic and anti-vibration device of the present invention will be described.

[0111] FIG. 12 is a cross-sectional view of a ceiling seismic and anti-vibration device according to another embodiment of the present invention.

[0112] Either one of the first and second housing covers 34 and 36 may be integrally formed with the housing body 32. In FIG. 12, the second housing cover 36 is shown as being integrally formed with the housing body 32, but the first housing cover 34 may be integrally formed with the housing body 32.

[0113] Through this, the damping unit 40 disposed inside the housing module 30, the hanger module 20, and the anchor module 10 can be supported more firmly. Further, in the process of coupling the first housing cover 34 to the housing body 32 while pressing the damping unit 40, the hanger module 20, and the anchor module 10, it is possible to prevent the corresponding components from falling outside the housing module 30, enabling stable manufacturing.

[0114] Hereinafter, further other embodiments of the ceiling seismic and shock isolation device of the present invention will be described.

[0115] FIG. 13 is a cross-sectional view of a ceiling seismic and shock isolation device according to still another embodiment of the present invention.

[0116] The housing body 32 of the housing module 30 can include a pressure adjustment portion 135 to which the first housing cover 34 is coupled. The pressure adjustment portion 135 can include a plurality of insertion grooves 134c. In the above-described embodiment, the housing body 32 is provided with one insertion groove 34c to which the first housing cover 34 is coupled and one insertion groove 36c to which the second housing cover 36 is coupled. Different from this embodiment, a plurality of insertion grooves 134c to which the first housing cover 34 is coupled can be provided. The first housing cover 34 can be configured to be selectively inserted and coupled to any one of the plurality of insertion grooves 134c. For the sake of convenience of explanation, the plurality of insertion grooves 134c to which the first housing cover 34 with a variable coupling position is coupled can be defined as a plurality of first insertion grooves 134c, and the insertion groove 136c to which the second housing cover 36 is coupled can be defined as a second insertion groove 136c. Through the above-described configuration, the first housing cover 34 can be coupled to the housing body 32 such that the isolation distance from the second housing cover 36 is variable.

[0117] As shown in FIG. 13, the plurality of first insertion grooves 134c can be configured to be spaced apart from each other along the length direction of the housing body 32. That is, when the first housing cover 34 is inserted into the first insertion groove closest to the second housing cover 36 among the plurality of first insertion grooves 134c as shown in FIG. 13, the largest compressive force can be provided to the damping unit 40, and when inserted into the first insertion groove disposed farthest, the smallest compressive force can be provided to the damping unit 40.

[0118] By varying the coupling position of the first housing cover 34 with respect to the housing body 32 through such a configuration, the compressive force applied to the damping unit 40 inside the housing module 30 can be adjusted to meet the required compressive force.

[0119] In this embodiment, a plurality of first insertion grooves 134c corresponding to the first housing cover 34 are provided, and it has been illustrated and described that the compressive force applied to the damping unit 40 is adjusted by varying the coupling position of the first housing cover 34, but it is not limited thereto. As an example, a plurality of second insertion grooves 136c to which the second housing cover 36 is coupled may be configured to vary the coupling position of the second housing cover 36, or a plurality of all of the first and second insertion grooves 134c and 136c to which the first and second housing covers 34 and 36 are coupled may be configured.

[0120] Hereinafter, still other embodiments of the ceiling seismic and vibration isolation device of the present invention will be described.

[0121] FIG. 14 is a cross-sectional view of a ceiling seismic and vibration isolation device according to still another embodiment of the present invention.

[0122] The housing body 32 of the housing module 30 may include a pressure adjustment portion 235 to which the first housing cover 34 is coupled. The pressure adjustment portion 235 may be formed of a screw groove. Correspondingly, the first housing cover 34 may include a coupling protrusion 234e in the shape of a screw protrusion around it. The pressure adjustment portion 235 may be formed in a certain section on the inner surface of the housing body 32 from the upper opening 32a.

[0123] Through such a configuration, the first housing cover 34 can adjust the compressive force applied to the damping unit 40 inside the housing module 30 to match the required compressive force by varying the coupling position through screw movement with respect to the housing body 32. Since the first housing cover 34 in this embodiment is not configured to be inserted into the insertion groove through elastic compression and elastic return, it may be configured in a closed-loop ring shape.

[0124] In this embodiment, a pressure adjustment section corresponding to the first housing cover 34 is provided, and by varying the connection position of the first housing cover 34, the compression force applied to the damping unit 40 is adjusted as illustrated and described, but it is not limited thereto. As an example, a pressure adjustment section 235 to which the second housing cover 36 is connected may be configured so that the connection position of the second housing cover 36 is varied, or the entire portion where the first and second housing covers 34 and 36 are connected may be configured by the pressure adjustment section 235.

[0125] The above has illustrated and described specific embodiments. However, it is not limited only to the above embodiments, and those having ordinary knowledge in the technical field to which the invention pertains can make various modifications and implementations without departing from the gist of the technical idea of the invention described in the following claims.

Explanation of Reference Numerals

[0126] S: Ceiling slab P: Ceiling structure 1: Ceiling device 10: Anchor module 12: Anchor bolt 14: First mounting portion 20: Hanger module 22: Hanger bolt 24: Second mounting portion 30: Housing module 32: Housing body 34: First housing cover 36: Second housing cover 38: Stopper 40: Damping unit 42: Damping member 50: Contact damping member

Claims

1. an anchor module fixed to the ceiling slab; A hanger module supporting a ceiling structure spaced apart from the ceiling slab; a damping unit for absorbing vibrations transmitted through the anchor module or the hanger module; A ceiling seismic resistance and isolation device comprising: a housing module that connects the anchor module and the hanger module, the housing module providing a compressive force so that the damping unit maintains a compressed state compressed from an initial state.

2. The housing module comprises: The ceiling seismic resistance and isolation device of claim 1 , configured to maintain the damping unit in the compressed state with restraints against the anchor module and the hanger module.

3. The housing module comprises: A housing body; a first housing cover and a second housing cover disposed on upper and lower portions of the housing body, the first housing cover and the second housing cover forming an arrangement space together with the housing body, The anchor module and the hanger module are an anchor bolt penetrating the first housing cover and the second housing cover; and a hanger bolt. The ceiling seismic resistance and seismic isolation device according to claim 1 , further comprising a first mounting portion and a second mounting portion which are respectively connected to the anchor bolt and the hanger bolt and which are arranged in the arrangement space.

4. At least one of the first and second housing covers is detachably coupled to the housing body; The ceiling seismic resistance and isolation device according to claim 3 , further comprising a predetermined compressive force provided to the damping unit through coupling of the at least one housing cover to the housing body.

5. The housing body is The ceiling seismic resistance and isolation device according to claim 4 , wherein the at least one housing cover includes an insertion groove formed to be recessed on its inner surface so as to be detachably coupled.

6. the first housing cover is coupled to the housing body such that a separation distance between the first housing cover and the second housing cover is variable; The damping unit includes: The ceiling seismic resistance and isolation device according to claim 3 , wherein the compressive force is adjusted according to a coupling position of the first housing cover with respect to the housing body.

7. The housing body is 7. The ceiling seismic resistance and isolation device according to claim 6, further comprising a pressure adjusting portion formed along the housing body so that the coupling position of the first housing cover can be varied.

8. The pressure adjustment unit is The housing body includes a plurality of insertion grooves that are recessed along an inner surface of the housing body and spaced apart from each other along a longitudinal direction of the housing body, The first housing cover includes: The seismic resistance and isolation device for a ceiling according to claim 7 , wherein the damping unit is selectively inserted and coupled to any one of the plurality of insertion grooves so that the compressive force of the damping unit can be adjusted.

9. The pressure adjustment unit is a thread groove formed along an inner surface of the housing body; The first housing cover includes: The ceiling seismic resistance and seismic isolation device according to claim 7, further comprising a coupling protrusion formed in the shape of a thread protrusion around the coupling protrusion so as to correspond to the thread groove, so that the pressure adjustment part can be moved.

10. The damping unit includes:

4. The ceiling seismic resistance and isolation apparatus of claim 3, further comprising a contact damping member interposed between said anchor module and said hanger module.

11. The contact damping member is The ceiling seismic resistance and isolation device according to claim 10 , which is interposed between the first mounting portion and the second mounting portion but is configured to cover the contact surfaces of the opposing first mounting portion and second mounting portion.

12. The anchor module and the hanger module are The ceiling seismic resistance and isolation device according to claim 3 , wherein the anchor bolt and the hanger bolt are connected to the housing module so as to have the same centerline.

13. The anchor module and the hanger module are The ceiling seismic resistance and isolation device according to claim 3 , wherein the first mounting portion and the second mounting portion are connected to the housing module such that their peripheries are spaced apart from the inner surface of the housing body.

14. The damping unit includes: a damping member for elastically supporting the hanger module relative to the housing module; The damping member is an elastic plate disposed between the second mounting portion of the hanger module and the second housing cover disposed on a lower portion of the housing body; The ceiling seismic resistance and isolation device according to claim 3 , further comprising: a plurality of elastic protrusions protruding from the elastic plate for elastically supporting the hanger module and the second housing cover.

15. the elastic plate is disposed at a predetermined distance from the second mounting portion and the second housing cover to form a space; The plurality of elastic protrusions include The ceiling seismic resistance and isolation device according to claim 14 , wherein the second mounting portion and the second housing cover are disposed in the separated space so as to be elastically supported.

16. The plurality of elastic protrusions include The ceiling seismic resistance and isolation device according to claim 15, wherein the second mounting portion and the second housing cover are formed to protrude from the elastic plate at the same height so as to be spaced apart from the elastic plate by the predetermined distance.

17. The plurality of elastic protrusions include The ceiling seismic resistance and isolation device according to claim 14, wherein the elastic plates are arranged to be spaced apart from each other.

18. The plurality of elastic protrusions include 15. The ceiling seismic resistance and isolation system of claim 14, wherein said resilient plates are spaced at equal radial distances from each other with respect to the center of said resilient plate.

19. The housing module comprises: The ceiling seismic resistance and isolation apparatus of claim 14, further comprising a stopper configured to be secured to an inner surface of the housing body to limit excessive movement of the hanger module.

20. an anchor module fixed to the ceiling slab; A hanger module supporting a ceiling structure spaced apart from the ceiling slab; a damping unit for absorbing vibrations transmitted through the anchor module or the hanger module; a housing module connecting the anchor module and the hanger module; The housing module comprises: A housing body; a housing body including a first housing cover and a second housing cover disposed at upper and lower portions of the housing body and forming an arrangement space together with the housing body, at least one of the housing covers being detachably coupled to the housing body; The at least one housing cover is configured to provide a compressive force to the damping unit through coupling to the housing body.

21. The housing body is The ceiling seismic resistance and isolation device according to claim 20, wherein the at least one housing cover includes an insertion groove formed recessedly on an inner surface thereof so as to be separably coupled.

22. the first housing cover is coupled to the housing body such that a separation distance between the first housing cover and the second housing cover is variable; The damping unit includes: The ceiling seismic resistance and isolation device according to claim 20, configured so that the compressive force is adjusted according to a coupling position of the first housing cover to the housing body.

23. The housing body is The ceiling seismic resistance and isolation device according to claim 22, further comprising a pressure adjusting portion formed along the housing body so that the coupling position of the first housing cover can be varied.

24. The pressure adjustment unit is The housing body includes a plurality of insertion grooves that are recessed along an inner surface of the housing body and spaced apart from each other along a longitudinal direction of the housing body, The first housing cover includes: The ceiling seismic resistance and isolation device according to claim 23, wherein the damping unit is selectively inserted into and coupled to any one of the plurality of insertion grooves so that the compression force of the damping unit can be adjusted.

25. The pressure adjustment unit is a thread groove formed along an inner surface of the housing body; The first housing cover includes: The ceiling seismic resistance and isolation device according to claim 23, further comprising a coupling protrusion formed in the shape of a thread protrusion around which the pressure adjustment part is movable and which corresponds to the thread groove.

Images