Ceiling earthquake-resistant and shock-absorbing devices
By installing damping devices and support devices on the roof of the building, steel plates, rubber plates and springs are used to absorb seismic energy, the problem of ceiling panels falling off in natural disasters is solved, and the seismic performance and construction convenience are improved.
Patent Information
- Application Number
- CN202111558005.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2021-11-05
- Filing Date
- 2021-12-16
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2041-12-16
AI Technical Summary
The ceiling panels of existing buildings are prone to fall off in natural disasters such as earthquakes or typhoons due to the failure to consider the earthquake resistance design, resulting in damage to life and property, and the existing technology lacks effective seismic measures.
The damping device and support device are adopted, including a damping unit and a support unit, and the earthquake energy is absorbed through the damping device composed of steel plates, rubber plates and springs, thereby increasing the bonding force and preventing the ceiling system from falling off.
Effectively absorb seismic load energy, improve the seismic resistance of the ceiling system, prevent falling off, and enhance construction convenience and connection stability.
Smart Images

Figure CN115961708B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a ceiling earthquake-proof and vibration-damping device, and more particularly, to a ceiling earthquake-proof and vibration-damping device with an improved structure. Background Art
[0002] Typically, various wiring, ventilation ducts, and other installations generated by electrical construction are built on the ceilings of buildings, factories, and the like, which makes the appearance unsightly. Therefore, people build ceiling panels to hide these facilities.
[0003] The ceiling panels constructed on the ceiling in this manner are mostly constructed by providing support rods at anchor insertion portions fixed to the ceiling slab and placing the ceiling panels on the support rods.
[0004] However, when constructing ceiling panels on indoor ceilings, since earthquake-resistant design is not considered at all during construction, when a natural disaster such as an earthquake or a typhoon occurs and the vibration or strong impact caused by the natural disaster is directly transmitted to the entire building, the vibration or strong impact directly acts on the constructed ceiling panels, causing the components fixing the ceiling panels to separate from the ceiling slab, thereby posing a problem of causing a major accident that may lead to the destruction of the ceiling panels.
[0005] Furthermore, roof collapse in such buildings is a major cause of loss of life and property. To mitigate the damage caused by roof collapse, existing technologies have focused on simply securing the components that make up the roof. These technologies suffer from a lack of energy absorption from earthquakes, and in particular, lack substantial seismic protection from the main components against lateral movement. Summary of the Invention
[0006] Technical issues
[0007] One aspect of the present invention provides a ceiling earthquake resistance and vibration reduction device with improved structure.
[0008] One aspect of the present invention provides a ceiling earthquake-resistant and vibration-damping device capable of effectively absorbing external forces.
[0009] On one hand, the present invention provides a roof anti-seismic and vibration-damping device capable of effectively absorbing lateral and longitudinal external forces.
[0010] One aspect of the present invention provides a ceiling earthquake-proof and vibration-damping device that absorbs energy introduced from earthquake loads and improves the bonding strength of accessories to prevent the ceiling system from falling off.
[0011] Technical Solution
[0012] According to the concept of the present invention, a ceiling seismic and vibration-proofing and damping device is provided, which connects a ceiling flat plate and a ceiling structure spaced apart from the ceiling flat plate, the ceiling seismic and vibration-proofing and damping device comprising: a damping device fixed to the ceiling flat plate to absorb vibration, the damping device comprising: a shell having an upper shell and a lower shell; and a damping unit having at least one elastic damping component, and arranged between the upper shell and the lower shell, the elastic damping component comprising: an elastic plate arranged between the upper shell and the lower shell; and a plurality of elastic protrusions protruding from the elastic plate and elastically supporting the shell.
[0013] The elastic plate may be spaced apart from the housing by a predetermined distance so as to form a separation space, and the plurality of elastic protrusions may be arranged in the separation space so as to elastically support the housing relative to the elastic plate.
[0014] The plurality of elastic protrusions may be formed to protrude from the elastic plate at the same height in such a manner that the elastic plate and the housing are spaced apart by the prescribed interval.
[0015] The plurality of elastic protrusions may be arranged on the elastic plate in a manner of being spaced apart from each other.
[0016] The plurality of elastic protrusions may be arranged in a plurality of rows to form concentric circles on the elastic plate.
[0017] The plurality of elastic protrusions may include a first elastic protrusion and a second elastic protrusion, and the first elastic protrusion and the second elastic protrusion may be respectively formed on one side surface and the other side surface of the elastic plate.
[0018] The damping device may include at least one pressurization adjusting unit that adjusts a distance between the upper housing and the lower housing in such a manner that the damping unit maintains a compressed state more compressed than an initial state.
[0019] The pressure adjustment unit may include: a coupling shaft having one side fixedly disposed on one of the upper shell and the lower shell; and a pressurizing member disposed on the other side of the coupling shaft and pressurizing the other shell toward the one shell.
[0020] The pressing member may be configured to be movable along the coupling axis.
[0021] The damping unit may include a hollow portion formed in an up-down direction, and the damping unit may further include an elastic unit disposed in the hollow portion and elastically supporting the upper and lower housings at both ends.
[0022] The elastic unit may be arranged along a first axial direction of the damping unit, and the at least one pressure adjustment unit may include a plurality of pressure adjustment units respectively arranged along a plurality of second axial directions spaced apart in parallel with the first axial direction.
[0023] The plurality of pressure adjustment units may be arranged spaced apart from each other around the first axis.
[0024] The damping device may include an anchoring insertion portion provided on the upper shell in a manner fixed to the ceiling plate, and the elastic unit and the anchoring insertion portion may be arranged on the same line.
[0025] A plurality of the elastic damping components may be provided, and the damping unit may include a supporting damping component interposed between the plurality of elastic damping components.
[0026] The elastic protrusions of the plurality of elastic damping members may elastically support the housing and the supporting damping member, respectively.
[0027] The elastic damping component may include rubber, and the supporting damping component may include a steel plate.
[0028] The damping device may include a contact member interposed between the ceiling plate and the upper shell, and an upper surface and a lower surface of the contact member may be configured to elastically contact the ceiling plate and the upper shell, respectively.
[0029] The roof anti-seismic and vibration-damping device may further include: a supporting device connecting the damping device and the roof structure.
[0030] The supporting device may include: a supporting shaft fixedly coupled to the damping device; and a supporting unit connected to the supporting shaft and supporting the roof structure.
[0031] The support shaft may be arranged in an axial direction passing through a center in a width direction of the damping unit.
[0032] The lower housing may include a coupling portion formed on a lower surface thereof, and the support device may be fixed to the damping device by coupling the support shaft to the coupling portion.
[0033] The support unit may include a retainer detachably coupled to a locking portion formed on the ceiling structure, and a coupling boss configured to elastically support the retainer on the support shaft.
[0034] The supporting unit may further include a fixing nut which pressurizes the retainer and the coupling boss to a compressed state that is more compressed than an initial state.
[0035] The supporting unit may further include side elastic units formed at both ends of the retainer and elastically supporting the retainer relative to the wall.
[0036] Effects of the Invention
[0037] According to an aspect of the present invention, it is possible to maximize earthquake energy absorption capability using a steel plate, an anti-vibration rubber plate, and a spring.
[0038] According to an aspect of the present invention, the bonding force of each unit is improved by the elastic force of the rubber, thereby having effective resistance to vibration and lateral deformation.
[0039] According to an aspect of the present invention, by modularizing the ceiling earthquake-resistant and vibration-damping device, constructability can be improved through minimization of on-site settings and simple connection details.
[0040] According to one aspect of the present invention, an energy-absorbing damping device composed of rubber, steel plates and springs and a supporting device for connecting roof materials are used to absorb energy introduced from earthquake loads and improve the bonding strength of accessories to prevent the roof system from falling off. BRIEF DESCRIPTION OF THE DRAWINGS
[0041] Figure 1 This is a diagram showing a ceiling earthquake-resistant and vibration-damping device installed on a ceiling according to an embodiment of the present invention.
[0042] Figure 2 It is a cross-sectional view of a ceiling earthquake-resistant and vibration-damping device according to one embodiment of the present invention.
[0043] Figure 3 It is a cross-sectional view of an enlarged view of a damping device of a ceiling earthquake-resistant and vibration-absorbing device according to one embodiment of the present invention.
[0044] Figure 4 This is a diagram showing a ceiling earthquake-resistant and vibration-damping device according to an embodiment of the present invention as viewed from above.
[0045] Figure 5 It is an exploded perspective view of a damping device of a ceiling earthquake-resistant and vibration-absorbing device according to one embodiment of the present invention.
[0046] Figure 6 This is a diagram of a damping device of a ceiling earthquake-resistant and vibration-absorbing device according to one embodiment of the present invention.
[0047] Figures 7 to 10 This is a diagram showing the combination of a supporting device for a ceiling earthquake-resistant and vibration-damping device according to an embodiment of the present invention.
[0048] Figures 11 to 15 This is a diagram illustrating a method for constructing a ceiling earthquake-resistant and vibration-damping device according to an embodiment of the present invention.
[0049] Reference numerals
[0050] S: Ceiling flat plate, P: Ceiling panel, 1: Ceiling seismic and vibration-absorbing device, 10: Damping device, 30: Damping unit, 22: Upper shell, 24: Lower shell, 30: Damping unit, 31: Elastic damping component, 32: Support damping component, 40: Pressurization adjustment unit, 50: Elastic unit, 60: Support device, 62: Support shaft, 70: Support unit, 72: Retainer, 80: Combining boss. DETAILED DESCRIPTION
[0051] The embodiments described in this specification and the components shown in the drawings are merely preferred examples of the disclosed invention, and at the time of filing this application, various modifications that can replace the embodiments and drawings in this specification may exist.
[0052] Furthermore, the same reference numerals or symbols shown in each of the drawings in this specification represent components or constituent elements that perform substantially the same function.
[0053] In addition, the terms used in this specification are used to describe the embodiments and are not intended to limit and / or define the disclosed invention. Unless otherwise clearly defined in the context, singular expressions include plural expressions. In this specification, terms such as "including" or "having" are intended to specify the presence of features, numbers, steps, actions, constituent elements, components, or combinations thereof described in the specification, and do not preclude the presence or addibility of one or more other features or numbers, steps, actions, constituent elements, components, or combinations thereof.
[0054] In addition, terms including ordinal numbers such as "first" and "second" used in this specification may be used to describe various components, but these components are not limited by these terms. These terms are used only to distinguish one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component. The term "and / or" includes a combination of multiple related items or any one of the multiple related items.
[0055] In addition, terms such as "unit," "device," "block," "component," and "module" may refer to a unit that processes at least one function or action. For example, these terms may refer to at least one process processed by at least one piece of software stored in at least one piece of hardware such as an FPGA (field-programmable gate array) or an ASIC (application specific integrated circuit), a memory, or a processor.
[0056] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. It should be noted that the following drawings attached to this specification illustrate preferred embodiments of the present invention and, together with the aforementioned summary of the invention, serve to further understand the technical concept of the present invention. Therefore, the present invention should not be interpreted solely based on the matters described in such drawings.
[0057] Figure 1 This is a diagram showing that the ceiling earthquake-resistant and vibration-damping device according to one embodiment of the present invention is installed on the ceiling.
[0058] The ceiling anti-vibration and vibration damping device 1 can be configured to connect a ceiling slab S and ceiling panels P. While this embodiment illustrates the ceiling anti-vibration and vibration damping device 1 being fixed to the ceiling slab S to support the ceiling panels P, the present invention is not limited thereto. For example, the ceiling anti-vibration and vibration damping device 1 can be installed on a slab or beam of a building and configured to support ceiling structures such as ceiling panels, ceiling air conditioners, and pipes located adjacent to the slab or beam. In this embodiment, for ease of description, the ceiling anti-vibration and vibration damping device 1 is described as being installed on the ceiling slab S, with the ceiling panels P being the ceiling structures supported by the ceiling anti-vibration device 1. The ceiling anti-vibration and vibration damping device 1 can be installed between the ceiling slab S and the ceiling panels P to absorb vibration or external forces, or to support both structures. Multiple ceiling anti-vibration and vibration damping devices 1 can be provided and spaced apart and arranged between the ceiling slab S and the ceiling panels P. Multiple ceiling anti-vibration and vibration damping devices 1 can be arranged between the ceiling slab S and the ceiling panels P at intervals of 600 to 900 mm. However, the arrangement pitch and arrangement method of the ceiling anti-vibration and vibration damping devices 1 are not limited and can be appropriately modified in consideration of the installation environment and the weight of the ceiling panels P.
[0059] In the installation of the ceiling anti-seismic and vibration-damping device 1, the damping device 10 and the supporting device 60 described later can be prefabricated and assembled. That is, the damping device 10 can be manufactured as a module by combining the housings 22 and 24, the damping unit 30, the pressure adjustment unit 40, and the elastic unit 50. In addition, the supporting device 60 can be manufactured as a module by combining the support shaft 62 and the supporting unit 70. In this way, by modularizing the damping device 10 and the supporting device 60, when installing the ceiling anti-seismic and vibration-damping device 1, the prefabricated damping device 10 and the supporting device 60 can be assembled or combined to improve the convenience of construction.
[0060] Figure 2 is a cross-sectional view of a ceiling earthquake-resistant and shock-absorbing device according to an embodiment of the present invention. Figure 3 This is an enlarged cross-sectional view of the damping device of the ceiling anti-vibration and vibration-control device according to one embodiment of the present invention. Figure 4 This is a diagram of a ceiling earthquake-proof and vibration-damping device according to an embodiment of the present invention as viewed from above. Figure 5 It is an exploded perspective view of a damping device of a ceiling earthquake-resistant and vibration-absorbing device according to one embodiment of the present invention.
[0061] The ceiling anti-seismic and vibration-absorbing device 1 may include a damping device 10 .
[0062] The damping device 10 may be elastically configured to effectively absorb vibration or external force. The damping device 10 may absorb vibration or external force in the lateral direction as well as in the longitudinal direction.
[0063] The damping device 10 may be fixedly formed on the ceiling flat plate S, and the supporting device 60 described later may be configured to be connected to the damping device 10 to support a ceiling structure such as the ceiling panel P. However, the damping device 10 is not limited thereto, and may also be configured to directly support a ceiling structure such as the ceiling panel P. In other words, the damping device 10 may also be configured so that both ends are supported or fixed to the ceiling flat plate S and the ceiling panel P, respectively.
[0064] The damping device 10 may include housings 22 , 24 and a damping unit 30 .
[0065] The housings 22 and 24 may include an upper housing 22 and a lower housing 24. The upper housing 22 and the lower housing 24 may be formed in the shape of plates. The upper housing 22 and the lower housing 24 may be formed from steel plates. The upper housing 22 and the lower housing 24 may be spaced a predetermined distance apart by the pressure adjustment unit 40, and the damping unit 30 may be arranged within the spaced-apart space. The upper housing 22 and the lower housing 24 may be formed in a generally circular plate shape. However, the shape of the housing is not limited.
[0066] The damping device 10 may include an anchoring insert 23. The anchoring insert 23 may be connected to the upper housing 22 and inserted and fixed to the ceiling plate S. The anchoring insert 23 may be formed in the shape of a bolt having a thread formed on the outer surface so as to be able to be set in the ceiling hole Sa (refer to FIG. Figure 11 、 12 ) sleeve Sb (reference Figure 3 、 11 , 12). The anchoring insert 23 may be a component of the upper shell 22. The upper shell 22 may include a through-connecting hole 22c for the anchoring insert 23. The anchoring insert 23 may be configured to pass through the center line C of the damping device 10. That is, the anchoring insert 23 may be arranged on the center line C of the damping device 10 to prevent lateral eccentricity from acting on the damping device 10. At least one anchoring insert 23 may be configured, and when a plurality of anchoring inserts 23 are configured, the centers of the plurality of anchoring inserts 23 may be configured on the center line C. The diameter of the anchoring insert 23 may be 8 to 15 mm, and the upper shell 22 may be formed to a thickness of 5 to 20 mm. However, its size is not limited.
[0067] The lower housing 24 may include an insertion hole 24c so that a tool can be inserted into the anchor insertion portion 23 for coupling the damping device 10 with respect to the ceiling slab S. Figure 12 As shown, the insertion hole 24c may be formed in the center of the lower housing 24 so that a screwdriver can be inserted and aligned with the screwdriver groove 23a (refer to FIG. Figure 12 The insertion hole 24c may be formed in the main body of the lower housing 24, or may be formed in the coupling portion 25 of the lower housing 24 as described later.
[0068] The damping unit 30 may be disposed between the upper housing 22 and the lower housing 24. The damping unit 30 may form a hollow portion 34. The damping unit 30 may be made of an elastic material in order to absorb external forces.
[0069] The damping unit 30 may include at least one damping component 31, 32. When multiple damping components 31, 32 are provided, they may be stacked in the vertical direction. The damping components 31, 32 may be configured to correspond to the areas of the upper housing 22 and the lower housing 24. That is, the upper surfaces of the damping components 31, 32 may correspond to the lower surface 22b of the upper housing 22, and the lower surfaces of the damping components 31, 32 may correspond to the upper surface 24b of the lower housing 24. In other words, the damping unit 30 may be formed to correspond to the shape and area of the upper housing 22 and the lower housing 24. However, the area and shape of the damping components 31, 32 are not limited.
[0070] The damping components 31 and 32 can be configured to have axial holes 36a and 36b formed therein, through which the coupling shaft 41 of the pressure adjustment unit 40 connecting the upper housing 22 and the lower housing 24 passes. Thus, the coupling shaft 41 can be configured to be supported by the upper housing 22 and the lower housing 24, respectively, through the axial holes 36a and 36b. Multiple damping components 31 and 32 can each have a central hole formed therein to form the hollow portion 34 of the damping unit 30. When multiple coupling shafts 41 are provided, multiple axial holes 36a and 36b can be formed therein to correspond thereto.
[0071] The damping component may include an elastic damping component 31. In addition, the damping component may also include a supporting damping component 32. The elastic damping component 31 and the supporting damping component 32 may be respectively named as a first damping component and a second damping component. The damping component may include only the elastic damping component 31 or both the elastic damping component 31 and the supporting damping component 32. In this embodiment, an example is illustrated and described in which a pair of elastic damping components 31 and a supporting damping component 32 disposed between the pair of elastic damping components 31 are configured. However, the damping component may also include only one elastic damping component 31 without the supporting damping component 32, and the number of each component is not limited.
[0072] The elastic damping components 31 and the supporting damping components 32 may have different elastic coefficients and may be alternately stacked. That is, at least one elastic damping component 31 and at least one supporting damping component 32 may be stacked in the vertical direction. The elastic damping components 31 and the supporting damping components 32 may be made of different materials and may have different thicknesses.
[0073] The elastic damping member 31 may be made of a generally plate-shaped rubber material. Because the elastic damping member 31 is made of an elastic material, as described below, it can be stably attached to the housing 22, 24 or the supporting damping member 32 and provide a stable vibration resistance effect. The elastic damping member 31 may include an elastic plate 31a and at least one elastic protrusion 31b.
[0074] The elastic plate 31a can be configured to correspond to the upper housing 22 and the lower housing 24. The elastic plate 31a can be positioned between the lower surface 22b of the upper housing 22 and the upper surface 24b of the lower housing 24, and spaced a predetermined distance apart from these components. The elastic plate 31a can be configured to have a shape and area corresponding to the lower surface 22b of the upper housing 22 or the upper surface 24b of the lower housing 24. The elastic plate 31a can be configured in the shape of a plate of a predetermined thickness. The thickness of the elastic plate 31a is not limited and can be, for example, 5 to 10 mm.
[0075] At least one elastic protrusion 31b can be formed to protrude from the elastic plate 31a to elastically support at least one of the upper housing 22 and the lower housing 24. Furthermore, the elastic protrusion 31b can also be configured to elastically support one side of the support and damping member 32. The elastic protrusion 31b can be formed on the elastic plate 31a so that the elastic plate 31a and the housing, or the elastic plate 31a and the support and damping member 32, are spaced apart from each other. Specifically, the elastic plate 31a and the housing, or the elastic plate 31a and the support and damping member 32, can be configured to form a space therebetween, and the elastic protrusion 31b can be disposed in the space.
[0076] The elastic protrusion 31 b may include a first elastic protrusion 31 ba protruding from one side of the elastic plate 31 a and a second elastic protrusion 31 bb protruding from the other side of the elastic plate 31 a .
[0077] A plurality of elastic protrusions 31b may be formed, and these elastic protrusions 31b may be as follows Figure 5 As shown, the elastic plate 31a is configured to be spaced apart from each other by a predetermined distance. That is, a plurality of first elastic protrusions 31ba and a second elastic protrusion 31bb can be respectively configured. The plurality of elastic protrusions 31b and the elastic plate 31a can reduce the vibration transmitted from the outside of the seismic device 1 to the lower shell 24 and the ceiling panel and other structures. The plurality of elastic protrusions 31b can be arranged in a roughly circular shape with the center line as the center on the elastic plate 31a. The plurality of elastic protrusions 31b can be arranged in a row or as shown in FIG. Figure 5 As shown, the plurality of columns are formed. The plurality of columns may include a first column A1 formed around the inner surface of the elastic plate 31a forming the hollow portion, and a second column A2 formed outside the first column A2. The plurality of elastic protrusions 31b are arranged in a circular pattern centered on the centerline, thereby stably reducing vibration caused by deflections spaced apart from the centerline and stably supporting structures such as ceiling panels P.
[0078] The supporting damping component 32 may include a plate-shaped steel plate material. However, the thickness and material of the first and second damping components are not limited. For example, the first and second damping components may also be formed with the same thickness. A plurality of damping components are stacked to provide horizontal friction between each other and to impart a composite elastic force corresponding to vibration or seismic force. In addition, by imparting friction through the stacked structure of a plurality of damping components, the durability of the damping unit 30 against external forces in the horizontal and vertical directions can be improved, and the external force can be effectively absorbed.
[0079] The elastic plate 31a of the elastic damping component 31 can have a diameter of 25 to 50 mm and a thickness of 5 to 10 mm. The upper shell 22 and the lower shell 24 can also have a diameter of 25 to 50 mm in a manner corresponding to the diameter of the elastic damping component 31. In addition, the height of the elastic protrusion 31b can be formed to be, for example, 5 to 10 mm. The thickness of the supporting damping component 32 can be 2 to 5 mm, and the diameter can be the same as that of the elastic plate 31a. The diameter of the hollow portion 34 can be formed to be 10 to 30 mm. However, the size and diameter of the elastic damping component 31 and the supporting damping component 32 are not limited and can be appropriately deformed according to the required environment.
[0080] The damping device 10 may include an elastic unit 50. The elastic unit 50 may be disposed in the hollow portion 34 formed in the damping unit 30. The elastic unit 50 may be configured to be disposed in the hollow portion 34 and to support the upper shell 22 and the lower shell 24. The ends of the elastic unit 50 may support the upper shell 22 and the lower shell 24, respectively. That is, one end of the elastic unit 50 may support the inner surface 22b of the upper shell 22, and the other end may support the inner surface 24b of the lower shell 24. The elastic unit 50 may be configured so that its ends are fixed to the upper shell 22 and the lower shell 24, respectively. The elastic unit 50 may include a spring having elastic force in the vertical direction. The outer diameter of the spring may be 8 to 25 mm.
[0081] The elastic unit 50 can be arranged on the centerline C of the damping device 10. That is, the elastic unit 50 can be arranged so that its center passes through the centerline C of the damping device 10, just like the anchoring insertion portion 23. In other words, the elastic unit 50 can be arranged on the same line as the anchoring insertion portion 23. The elastic unit 50 can be arranged on the centerline C of the damping device 10 to prevent lateral eccentricity from acting on the damping device 10.
[0082] When the centerline C is defined as the first axis X1, the elastic unit 50 is configured to exert an elastic force along the first axis X1. Furthermore, at least one pressure adjustment unit 40 may be spaced from the first axis X1 and arranged along a second axis X2 parallel to the first axis X1. If multiple pressure adjustment units 40 are provided, they may be arranged along the second axis X2, spaced from one another with the first axis X1 as the center. The multiple second axes X2 of the pressure adjustment units 40 may be configured to have the same spacing as the first axis X1.
[0083] With this structure, when external forces acting in the same direction along the first axis X1 and the multiple second axes X2 of the ceiling anti-vibration and vibration-damping device 1 are applied, the elastic unit 50 and the damping unit 30 can be compressed or stretched in the same direction to absorb the external forces. Furthermore, when external forces acting in a direction biased toward a portion of the first axis X1 and the multiple second axes X2 act on the ceiling anti-vibration and vibration-damping device 1, portions of the elastic unit 50 and the damping unit 30 are compressed while the remaining portions are stretched, effectively absorbing the external forces.
[0084] The damping device 10 may include a contact member 21. The contact member 21 may be formed of a material having elasticity and may be formed in a plate shape.
[0085] The contact member 21 can be arranged on the upper surface of the upper shell 22. The contact member 21 can be configured to cover the entire upper surface of the upper shell 22. When the ceiling earthquake-proof and vibration-damping device 1 is provided on the ceiling flat plate S and the ceiling panel P, the contact member 21 can be configured to be located between the upper surface of the upper shell 22 and the lower surface of the ceiling flat plate S. The contact member 21 can be arranged to be closely attached between the upper shell 22 and the ceiling flat plate S. Thus, the contact member 21 can also prevent concentrated loads from being generated in specific portions due to surface unevenness, and can effectively transmit external forces transmitted through the ceiling flat plate S to the damping unit 30. In addition, since the contact member 21 is made of an elastic material, it can be stably attached to the upper shell 22 and the ceiling flat plate S, and can have a stable resistance effect to vibration.
[0086] Figure 6 This is a diagram of a damping device for a roof anti-vibration and vibration-control device according to an embodiment of the present invention. Figure 1 And describe it.
[0087] The damping device 10 may include a pressure adjustment unit 40. The pressure adjustment unit 40 may be disposed at the upper housing 22 and the lower housing 24 and configured to apply pressure to the damping unit 30 between the upper housing 22 and the lower housing 24. The pressure adjustment unit 40 may include at least one coupling shaft 41.
[0088] At least one coupling shaft 41 may be disposed between the upper housing 22 and the lower housing 24, interposed between the damping unit 30. The coupling shaft 41 may be configured to span the upper housing 22, the damping unit 30, and the lower housing 24, and to be supported or fixed to the upper housing 22 and the lower housing 24, respectively. To allow the coupling shaft 41 to pass through, the damping unit 30 may include a shaft hole 36, and the upper housing 22 and the lower housing 24 may include housing holes 22a and 24a. The coupling shaft 41 may include a bolt-shaped steel rod.
[0089] The coupling shaft 41 may include a pressurizing component 42. The coupling shaft 41 may apply a compressive force between the upper housing 22 and the lower housing 24 through the pressurizing component 42. One side of the coupling shaft 41 may be fixed to one of the upper housing 22 and the lower housing 24, and the other side may be fixed to the other housing through the pressurizing component 42. A shaft head is provided on one side of the coupling shaft 41 so that it can be configured to be fixed to one of the housings. In this embodiment, the shaft head of the coupling shaft 41 can be configured to be fixed to the upper housing 22. The pressurizing component 42 may be configured in the shape of a nut and may be moved axially along the coupling shaft 41 formed in the shape of a bolt by rotating it using a tool such as pliers. However, the shape of the pressurizing component 42 is not limited, as long as it is a component that can pressurize the damping unit 30. The pressurizing component 42 may also be a component of the coupling shaft 41, and the coupling shaft 41 and the pressurizing component 42 may also be components of the pressure adjustment unit 40.
[0090] The pressurizing component 42 can be located on the other side of the coupling shaft 41, maintaining a state in which the other housing is pressurized toward one of the housings, thereby configuring the damping unit 30 to be in a compressed state that is more compressed than the initial state. That is, the pressurizing component 42 compresses the damping unit 30 into a compressed state by moving relative to the coupling shaft 41, and can maintain the compressed state. In detail, the pressurizing component 42 can move between a first position and a second position, the first position being the first position in the initial state in which the damping unit 30 is not compressed, and the second position being a position moved toward one side of the coupling shaft 41 relative to the first position, wherein the second position is a position in which the damping unit 30 is compressed into a compressed state. By maintaining the second position, the pressurizing component 42 can maintain the compressed state of the damping unit 30.
[0091] In more detail, when the pressing member 42 moves along the coupling shaft 41 and as shown in FIG. Figure 6 When a tension of 5 to 40% of the yield strength of the coupling shaft 41 is applied to the coupling shaft 41 as shown by the arrow in FIG. Figure 6 The compression force is introduced into the damping unit 30 and the elastic unit 50 as shown by the arrows of the damping unit 30 and the elastic unit 50. The compression force applied to the damping unit 30 and the elastic unit 50 can improve the lateral resistance and energy dissipation capacity of the damping device 10 to effectively resist the earthquake load.
[0092] Furthermore, with such a structure, the plurality of damping members 31 and 32 of the damping device 10 can increase friction between each other and improve the shear elasticity of the damping device 10. Furthermore, as the damping unit 30 maintains a compressed state, the shock resistance of the damping device 10 can be improved.
[0093] In this embodiment, the pressurizing member 42 may be disposed at the lower portion of the lower housing 24 and pressurize the lower housing 24 toward the upper housing 22, thereby compressing the damping unit 30. Conversely, however, the pressurizing member 42 may be disposed at the upper portion of the upper housing 22 and pressurize the upper housing 22 toward the lower housing 24, thereby compressing the damping unit 30.
[0094] The diameter of the coupling shaft 41 may be 4 to 8 mm, and the inner diameter of the pressurizing member 42 may be configured to correspond to the diameter of the coupling shaft 41. However, the sizes and diameters of the coupling shaft 41 and the pressurizing member 42 are not limited.
[0095] Figures 7 to 10 This is a diagram of the combination of the support device of the ceiling earthquake-proof and vibration-damping device according to one embodiment of the present invention. Figure 2 Describe them together.
[0096] The ceiling anti-seismic and vibration-absorbing device 1 may include a supporting device 60 .
[0097] The supporting device 60 may be configured to be connected to the damping device 10 and to support the ceiling panel P.
[0098] The supporting device 60 may include a supporting shaft 62 fixedly coupled to the damping device 10 , and a supporting unit 70 connected to the supporting shaft 62 and supporting the ceiling panel P.
[0099] The support shaft 62 can be detachably coupled to the lower housing 24. The lower housing 24 may include a nut-shaped coupling portion 25, and the support shaft 62 may be configured so that one end is inserted into and fixed to the coupling portion 25. The coupling portion 25 may be configured to have a diameter of 8 to 15 mm, and the lower housing 24 may be configured to have a thickness of 5 to 20 mm. The support shaft 62 may be formed with a diameter of 8 to 15 mm. The coupling portion 25 may be as Figure 2 、 3 6 and is formed integrally with the lower housing 24, or can be separably coupled.
[0100] The support shaft 62 may be disposed to have the same center line C as the elastic unit 50 . That is, the support shaft 62 may be disposed on the same line as the center line C of the damping device 10 .
[0101] The support shaft 62 may include a pair of threaded portions 63 formed at both ends and a corner portion 64 formed between the pair of threaded portions 63. One side of the pair of threaded portions 63 may be coupled to the coupling portion 25 of the lower housing 24, while the other side may be coupled to a coupling boss 80 and a retainer 72 described later.
[0102] The corner portion 64 may be disposed between a pair of threaded portions 63 and configured as in Figure 15 The ceiling anti-vibration and vibration damping device 1 can be gripped by a tool such as a wrench during installation.
[0103] The support unit 70 may be configured to be coupled to the support shaft 62 and support the ceiling panel P. The support unit 70 may be detachably coupled to the support shaft 62 .
[0104] The supporting unit 70 may include a holder 72 and a coupling boss 80 .
[0105] The retainer 72 can be connected to the frame Pa (refer to Figure 2 ) can be detachably coupled. The frame Pa can be formed on the upper surface of the ceiling panel P and can be formed long in one direction. The frame Pa is a component of the ceiling panel P and can be formed integrally with the ceiling panel P or can be detachably coupled. The retainer 72 can be formed long in the same direction as the one direction and can be slidably coupled or insertedly coupled to the frame Pa, thereby enabling detachable coupling.
[0106] The retainer 72 may be formed substantially The retainer 72 may include a retainer body 74 having a through hole 74b through which the support shaft 62 passes, and retainer side portions 76 extending from both sides of the retainer body 74 and having side protrusions 76a formed thereon in a manner that is locked to the frame insertion portion Pb of the frame Pa. The retainer body 74 may be arranged at a predetermined interval from the side protrusions 76a in a manner that forms an insertion space with the frame Pa. In a pair of retainer side portions 76, the side protrusions 76a are respectively locked to the frame insertion portions Pb formed on both sides of the frame Pa (refer to Figure 2 、 11 , 12), so that the retainer 72 can restrain the frame Pa and support the ceiling panel P. The side protrusions 76a formed on the pair of retainer side portions 76 are members that protrude toward the inside of the insertion space. Their shape is not limited as long as they are members that can support a structure such as the ceiling panel P by being locked to the frame Pa. The side protrusions 76a can also be as Figure 2 While shown as a hook shape, it can also be a protruding shape bent from the side protrusion 76a. The shape of the side protrusion 76a is not limited. Furthermore, the width of the retainer body 74 can be 25 to 50 mm, and the height of the retainer side portion 76 can be 19 to 25 mm. Furthermore, the cross-sectional width of the frame Pa can be 25 to 50 mm, and the height can be 19 to 25 mm. However, the size and shape of the retainer 72 and frame Pa are not limited, and can be varied depending on the weight, shape, size, and application environment of the ceiling panel P to be connected.
[0107] The support unit 70 may include fixing nuts 66a and 66b that are movably disposed along the support shaft 62. The fixing nuts 66a and 66b may be configured to constrain the retainer 72 and the engaging boss 80. The retainer body 74 and the engaging boss 80 of the retainer 72 may be disposed between the pair of fixing nuts 66a and 66b. The retainer 72 may be fixedly disposed on the support shaft 62 by being constrained from movement relative to the support shaft 62 by the fixing nuts 66a and 66b and the engaging boss 80.
[0108] The support unit 70 may include an auxiliary plate 66c between the retainer 72 and the fixing nut 66a located at the upper portion of the retainer 72. The auxiliary plate 66c may be configured to fit tightly between the upper fixing nut 66a and the retainer 72. The auxiliary plate 66c may be interposed between the fixing nut 66a and the retainer 72 to prevent damage between the fixing nut 66a and the retainer 72. The auxiliary plate 66c may be formed of a steel plate. The auxiliary plate 66c may have a horizontal and vertical width of 19 to 50 mm and a thickness of 5 to 20 mm. The size and thickness of the auxiliary plate 66c are not limited and may be appropriately deformed according to the size of the retainer 72. The auxiliary plate 66c may also be formed of an elastic material to increase the adhesion. When the auxiliary plate 66c is formed of an elastic material, it may be configured to elastically support the retainer 72 similarly to the coupling boss 80 described later.
[0109] The coupling boss 80 may be configured to elastically support the retainer 72 on the support shaft 62. The coupling boss 80 may include a through portion 84 (see FIG. 1 ) through which the support shaft 62 passes. Figure 2 、 10 , 12). The support shaft 62 can pass through the coupling boss 80 via the through portion 84, and a fixing nut 66b can be disposed at its lower portion to support the coupling boss 80. With this structure, the coupling boss 80 can be configured to be in close contact with the lower surface 74a of the retainer body 74 of the retainer 72. The coupling boss 80 can be configured to elastically support the retainer 72 relative to the support shaft 62.
[0110] The coupling boss 80 may include an elastic material. The coupling boss 80 may be made of an elastic material so that the retainer body 74 of the retainer 72 can be elastically supported relative to the support shaft 62. In addition, since the boss upper surface 82a of the coupling boss 80 is in surface contact with the inner surface 74a of the retainer body 74, in addition to the external force transmitted in the axial direction of the support shaft 62, it can also elastically support external forces in an eccentric direction relative to the axial direction. In addition, since the coupling boss 80 is made of an elastic material, it can be stably adhered to the retainer 72 and can have a stable resistance to vibration.
[0111] The coupling boss 80 can be configured so that the boss upper surface 82a and the boss lower surface 82b can be pressurized by the inner surface 74a of the retainer body 74 and the fixing nut 66b, respectively, to a compressed state relative to their initial state. This structure can improve the contact and frictional force of the coupling boss 80 relative to the retainer body 74, and can also increase the elastic force relative to the retainer body 74. The coupling boss 80 can have a diameter of 10 to 40 mm and can be formed with a thickness of 5 to 10 mm. However, the size and shape of the coupling boss 80 are not limited.
[0112] The fixing nuts 66a and 66b can pressurize the coupling boss 80 so that it is compressed further than its initial state. The fixing nuts 66a and 66b can also be defined as boss pressurizing portions. Specifically, the fixing nuts 66a and 66b can be moved along the support shaft 62 to pressurize the coupling boss 80 coupled to the end of the support shaft 62 while maintaining the compressed state of the coupling boss 80.
[0113] Thus, the engaging boss 80 can improve the adhesion between the retainer 72 and the support shaft 62 and can effectively resist vibration and lateral deformation caused by earthquake loads.
[0114] The supporting device 60 may include a side elastic unit 90. Figures 8 to 10 Provide a description.
[0115] The side elastic unit 90 may be configured to be connected between a ceiling structure such as a ceiling panel P and a wall W (see FIG. Figure 10 The side elastic unit 90 may include a first side unit 92 and a second side unit 94.
[0116] The first side unit 92 may be configured to elastically support the retainer 72 between the wall W. The retainer 72 may include a retainer body 74 and a retainer facing member 78 formed at an end of a retainer side portion 76 , and one side of the first side unit 92 may be connected to the retainer member 78 .
[0117] The first side unit 92 can be connected to the retainer 72 and configured to elastically support the ceiling structure relative to the wall W. To this end, the first side unit 92 can be formed in the same direction as the length of the retainer 72 so that its elastic force is generated in the horizontal direction. The first side unit 92 can include a head 92a that contacts the wall W to reduce damage to the wall W, and an elastic member 92b connected to the head 92a. The head 92a can be formed of an elastic material, and the elastic member 92b can be formed of a spring.
[0118] The second side unit 94 can be configured to elastically support the wall W and the ceiling structure. The wall W can include a receiving frame Wa for receiving the second side unit 94. The receiving frame Wa can be configured as follows: The second side unit 94 is shaped and accommodates the second side unit 94. One end of the second side unit 94 can be fixed to the accommodation frame Wa or the wall W, and the other end can be configured to elastically support the side of the ceiling structure.
[0119] The elastic member 92b of the first side unit 92 and the second side unit 94 can be formed with a diameter of 8 to 25 mm. The cross-section of the head 92a of the first side unit 92 can have a horizontal and vertical width of 10 to 50 mm and a thickness of 10 to 20 mm. In addition, the retainer facing member 78 supporting the first side unit 92 can be configured to correspond to the size of the retainer body 74 and the retainer side portion 76.
[0120] In this manner, since the side elastic units 90 elastically support the ceiling structure, such as the ceiling panel P, and the wall W, even if vibrations or external forces are generated in the ceiling structure and wall W, these vibrations or external forces can be reduced, and damage between the two can be prevented. Although the present embodiment illustrates the side elastic units 90 as being separated into a first side unit 92 and a second side unit 94, it is also possible to use only one of the side units, or to use both in combination. Furthermore, while the first side unit 92 is described as being disposed on the retainer 72 and elastically supporting the wall W, the first side unit 92 can also be disposed on the ceiling structure and elastically supporting the wall W. Furthermore, while the second side unit 94 is described as being disposed on the wall W or the receiving frame Wa and elastically supporting the ceiling structure, the second side unit 94 can also be disposed on the wall W or the receiving frame Wa and elastically supporting the retainer 72.
[0121] The structure of the ceiling anti-seismic and vibration-damping device 1 maximizes its seismic energy absorption capacity. Furthermore, the damping unit 30 and the coupling boss 80 enhance the bonding strength of the various components, effectively resisting vibration and lateral deformation. Furthermore, the prefabricated ceiling anti-seismic and vibration-damping device 1 only requires installation on site, maximizing construction efficiency.
[0122] The following describes the construction method of the earthquake-resistant and vibration-damping device for the ceiling of the above structure.
[0123] Figures 11 to 15 This is a diagram illustrating a method for constructing a ceiling earthquake-resistant and vibration-damping device according to an embodiment of the present invention.
[0124] In setting up the ceiling anti-seismic and vibration-damping device 1 , the damping device 10 and the supporting device 60 may be manufactured first.
[0125] The damping device 10 may be manufactured by combining the upper housing 22, the lower housing 24, and the damping unit 30 disposed therebetween using the pressurization adjustment unit 40. An anchoring insertion portion 23 may be formed at the upper housing 22 of the damping device 10.
[0126] The support device 60 can be manufactured by combining the support shaft 62 and the support unit 70. Specifically, the support device 60 can be constructed by mounting and supporting the retainer 72 at one end of the support shaft 62 via the boss 80 and the fixing nuts 66a and 66b. The side elastic unit 90 can be configured as being attached to the retainer 72 of the support device 60, or it can be installed after the retainer 72 is attached to the ceiling structure during the construction of the ceiling anti-seismic and vibration-damping device.
[0127] In this way, the damping device 10 and the supporting device 60 can be prefabricated as a module respectively.
[0128] like Figure 11 As shown, an anchor hole Sa may be formed so that the anchor insertion portion 23 can be inserted into the ceiling plate S. A sleeve Sb having a thread formed thereon for increasing friction between the anchor hole Sa and the anchor insertion portion 23 may be inserted.
[0129] like Figure 12 As shown, the damping device 10 can be secured to the ceiling slab S by inserting the prefabricated anchoring insert 23 of the damping device 10 into a sleeve Sb or anchor hole Sa formed in the ceiling slab S. Specifically, the anchoring insert 23 is positioned so that one end is inserted into the anchor hole Sa, and then rotated using a tool such as an electric screwdriver through a screwdriver groove 23a formed at the other end to insert and secure the anchoring insert 23 into the anchor hole Sa. However, the method of inserting the anchoring insert 23 into the anchor hole Sa is not limited; any method of inserting and securing the anchoring insert 23 into the anchor hole Sa to secure the damping device 10 to the ceiling slab S is sufficient.
[0130] The support shaft 62 of the prefabricated support device 60 can be fixed to the joint 25 of the damping device 10. In detail, Figure 13 As shown in (a), the support shaft 62 can be positioned in such a way that one end thereof is inserted into the joint 25. Figure 13 As shown in (b), the support shaft 62 can be inserted and fixed to the coupling portion 25 by rotating it through the screwdriver groove 62a formed at the other end using a tool such as an electric screwdriver. However, the method of inserting the support shaft 62 into the coupling portion 25 is not limited, and any method that fixes the support device 60 to the damping device 10 is sufficient.
[0131] In addition, if Figure 13As shown in (c), the retainer 72 and the coupling boss 80 can be brought into close contact. Specifically, the retainer 72 and the coupling boss 80 can be brought into close contact by moving the fixing nuts 66a and 66b. Furthermore, the fixing nuts 66a and 66b can be moved in a direction that presses the retainer 72 and the coupling boss 80 so as to generate a predetermined compressive force on the coupling boss 80.
[0132] like Figure 14 As shown, the frame Pa of the ceiling panel P may be coupled to the support unit 70 of the support device 60. Specifically, the ceiling panel P may be moved in such a manner that the frame Pa of the ceiling panel P is slidably coupled or insertedly coupled to the holder 72 of the support unit 70.
[0133] like Figure 15 As shown, by rotating the corner portion 64 of the support shaft 62 with a tool such as a wrench, the height of the ceiling structure such as the support unit 70 or the ceiling panel coupled to the support unit 70 can be adjusted.
[0134] Through this process, the ceiling anti-seismic and vibration-damping device 1 connecting the ceiling slab S and the ceiling panel P can be installed. The ceiling anti-seismic and vibration-damping device 1 can be constructed in a state where the damping device 10 and the supporting device 60 are prefabricated, so it can be installed more easily at the construction site.
[0135] While specific embodiments have been illustrated and described above, the present invention is not limited to the embodiments described above, and a person skilled in the art may implement various modifications without departing from the spirit of the invention as described in the claims.
Claims
1. A ceiling anti-seismic and vibration-damping device, which connects a ceiling plate and a ceiling structure spaced apart from the ceiling plate, the ceiling anti-seismic and vibration-damping device comprising: a damping device fixed to the roof plate to absorb vibrations, The damping device comprises: a housing having an upper housing and a lower housing; and a damping unit having at least one elastic damping component and arranged between the upper housing and the lower housing, The elastic damping component comprises: an elastic plate disposed between the upper shell and the lower shell and made of an elastic material; and a plurality of elastic protrusions, which protrude from the elastic plate and elastically support the housing, are arranged on the elastic plate in a manner spaced apart from each other in such a manner as to stably reduce deflected vibrations, The damping device further includes at least one pressure adjustment unit configured to adjust the distance between the upper housing and the lower housing so as to maintain the damping unit in a compressed state more compressed than an initial state, wherein the pressure adjustment unit is configured to pass through the damping unit. The pressure regulating unit comprises: a coupling shaft, one side of which is fixedly disposed on one of the upper housing and the lower housing; and The pressurizing member is disposed on the other side of the coupling shaft and pressurizes the other housing toward the one housing.
2. The ceiling earthquake-proof and vibration-damping device according to claim 1, characterized in that: The elastic plate is spaced apart from the housing by a predetermined distance in a manner of forming a separation space. The plurality of elastic protrusions are arranged in the partition space so as to elastically support the housing relative to the elastic plate.
3. The ceiling earthquake-proof and vibration-damping device according to claim 2, characterized in that: The plurality of elastic protrusions are formed to protrude from the elastic plate at the same height in such a manner that the elastic plate and the housing are spaced apart by the prescribed interval.
4. The ceiling earthquake-proof and vibration-damping device according to claim 1, characterized in that: The plurality of elastic protrusions are arranged in a plurality of rows to form concentric circles on the elastic plate.
5. The ceiling earthquake-proof and vibration-damping device according to claim 1, characterized in that: The plurality of elastic protrusions include a first elastic protrusion and a second elastic protrusion, and the first elastic protrusion and the second elastic protrusion are respectively formed on one side surface and the other side surface of the elastic plate.
6. The ceiling earthquake-proof and vibration-damping device according to claim 1, characterized in that: The pressing member is configured to be movable along the coupling axis.
7. The ceiling earthquake-proof and vibration-damping device according to claim 1, characterized in that: A hollow portion is formed in the damping unit in the up-down direction. The damping unit further includes an elastic unit that is disposed in the hollow portion and elastically supports the upper shell and the lower shell at both ends.
8. The ceiling earthquake-proof and vibration-damping device according to claim 7, characterized in that: The elastic unit is arranged along a first axial direction of the damping unit, The at least one pressure adjustment unit includes a plurality of pressure adjustment units respectively arranged along a plurality of second axial directions spaced apart in parallel with the first axial direction.
9. The ceiling earthquake-proof and vibration-damping device according to claim 8, characterized in that: The plurality of pressure adjustment units are arranged spaced apart from each other around the first axis.
10. The ceiling earthquake-proof and vibration-damping device according to claim 7, characterized in that: The damping device includes an anchoring insert provided on the upper shell in a manner fixed to the ceiling plate. The elastic unit and the anchor insertion portion are arranged on the same line.
11. The ceiling earthquake-proof and vibration-damping device according to claim 7, characterized in that: There are multiple elastic damping components. The damping unit includes a supporting damping member interposed between the plurality of elastic damping members.
12. The ceiling earthquake-proof and vibration-damping device according to claim 11, characterized in that: The elastic protrusions of the plurality of elastic damping members elastically support the housing and the supporting damping member, respectively.
13. The ceiling earthquake-proof and vibration-damping device according to claim 11, characterized in that: The elastic damping component comprises rubber, The supporting and damping component includes a steel plate.
14. The ceiling earthquake-proof and vibration-damping device according to claim 1, characterized in that: The damping device includes a contact member interposed between the ceiling plate and the upper shell, wherein an upper surface and a lower surface of the contact member elastically contact the ceiling plate and the upper shell, respectively.
15. The ceiling earthquake-proof and vibration-damping device according to claim 1, characterized in that: Also includes: A supporting device connects the damping device and the roof structure.
16. The ceiling earthquake-proof and vibration-damping device according to claim 15, characterized in that: The supporting device comprises: a support shaft fixedly coupled to the damping device; and A supporting unit is connected to the supporting shaft and supports the roof structure.
17. The ceiling earthquake-proof and vibration-damping device according to claim 16, characterized in that: The support shaft is arranged in an axial direction passing through a center in a width direction of the damper unit.
18. The ceiling earthquake-proof and vibration-damping device according to claim 16, characterized in that: The lower housing includes a joint formed on the lower side thereof, The support device is fixed to the damping device by coupling the support shaft to the coupling portion.
19. The ceiling earthquake-proof and vibration-damping device according to claim 16, characterized in that: The support unit comprises: a retainer detachably coupled to a locking portion formed on the ceiling structure; and The coupling boss is configured to elastically support the retainer on the support shaft.
20. The ceiling earthquake-proof and vibration-damping device according to claim 19, characterized in that: The supporting unit further includes a fixing nut that pressurizes the retainer and the coupling boss to a compressed state that is more compressed than an initial state.
21. The ceiling earthquake-proof and vibration-damping device according to claim 19, characterized in that: The supporting unit further includes a side elastic unit, which is formed at both ends of the retainer and elastically supports the retainer relative to the wall.
Citation Information
Patent Citations
Suspended ceiling structure system of exhibition hall
CN213233962U
A shock absorber system for the floor
KR100759110B1