Shock isolation device for data center equipment

Abstract

The invention relates to the technical field of seismic isolation, in particular to a seismic isolation device for data center equipment. The upper seat plate and the lower seat plate are arranged in a mirror image mode, the upper seat plate is movably installed above the lower seat plate, and the upper seat plate is used for placing equipment; the plurality of spherical crown bodies are arranged in the concave spherical surface between the upper seat plate and the lower seat plate; friction plates are embedded in the top end and the bottom end of the spherical crown body, concave spherical surfaces with the same curvature radius as the spherical crown body are arranged on the lower surface of the upper seat plate and the upper surface of the lower seat plate, and the spherical crown body can slide in the corresponding concave spherical surfaces. A plurality of spherical crown bodies are arranged between the upper base and the lower base, the upper base plate can freely slide in any horizontal direction to reduce adverse effects caused by vibration, and the upper base plate has certain rotating capacity and can automatically reset; therefore, the purpose of continuously and stably isolating shock in all directions is achieved.

Description

Technical Field

[0001] The present application relates to the field of seismic isolation technology, and in particular to a seismic isolation device for data center equipment. Background Art

[0002] The friction pendulum isolation bearing is a kind of isolation bearing that realizes the isolation function by extending the structural vibration period through spherical swing and consuming seismic energy through friction on the sliding interface. The friction pendulum isolation bearing is widely used in bridges, buildings and other related industries due to its high vertical bearing capacity, controllable processing accuracy, and self-reset after earthquake.

[0003] Since equipment protection has high requirements for seismic isolation capabilities, the current structure of the equipment seismic isolation device is mainly composed of a cross slide rail, which combines a cross slide rail mechanism between the upper and lower connecting plates. The two slide rails move in coordination to achieve horizontal displacement of the seismic isolation device in any direction, thereby achieving a seismic isolation effect.

[0004] However, when using cross-slide type bearings for seismic isolation, the movements of the cross-slide in two directions may interfere with each other, and when vibrations occur in the pitch direction during an earthquake, the cross-slide may become "stuck" and lose its displacement isolation function.

[0005] In addition, this type of structure is difficult to automatically reset after an earthquake. When vibrations occur multiple times in a short period of time, its self-adjustment ability is poor, making it difficult to continue normal use and its seismic isolation ability is poor. Summary of the invention

[0006] The present invention provides a seismic isolation device for data center equipment. By arranging multiple spherical crown bodies with friction plates embedded at both ends between an upper base and a lower base, the upper seat plate can slide freely with the spherical crown bodies in any horizontal direction to reduce the adverse effects caused by vibration, and has a certain rotation ability and can automatically reset to achieve the purpose of continuous and stable seismic isolation in all directions.

[0007] The present invention provides a seismic isolation device for data center equipment, comprising:

[0008] lower seat panel;

[0009] An upper seat plate is arranged in a mirror image with the lower seat plate and can be movably installed above the lower seat plate, and the upper seat plate is used to place equipment;

[0010] A plurality of spherical crowns are arranged in the seismic isolation area between the upper seat plate and the lower seat plate;

[0011] The top and bottom ends of the spherical crown are both embedded with friction plates, and the lower surface of the upper seat plate and the upper surface of the lower seat plate are both embedded with concave spherical surfaces corresponding to the friction plates, and the friction plates can slide in the corresponding concave spherical surfaces;

[0012] The multiple spherical crowns are symmetrically distributed relative to the vertical symmetry plane of the lower seat plate; the multiple spherical crowns are distributed in a circular array relative to the center position of the seat plate portion.

[0013] Preferably, the friction plate and the concave spherical surface have the same curvature radius.

[0014] Preferably, the friction material used for the friction plate is polytetrafluoroethylene, modified polytetrafluoroethylene or modified ultra-high molecular weight polyethylene.

[0015] Preferably, a spherical stainless steel plate is provided at the concave spherical surface.

[0016] Preferably, the surface of the stainless steel plate has a coating with a low friction coefficient, and the friction plate is in contact with the coating.

[0017] Preferably, the spherical stainless steel plate is embedded in the lower surface of the upper seat plate and the upper surface of the lower seat plate.

[0018] Preferably, the number of the spherical crowns is four or more, which can be flexibly adjusted according to the quality and size of the equipment.

[0019] Preferably, the curvature radius of the concave spherical surface can be flexibly adjusted according to the seismic isolation effect;

[0020] Preferably, the chord length of the concave spherical surface can be flexibly adjusted according to the displacement size of the spherical crown;

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention arranges a plurality of spherical crowns between the upper base and the lower base, so that the upper base plate can slide freely in any horizontal direction to reduce the adverse effects caused by vibration, and has a certain rotation ability and can automatically reset; so as to achieve the purpose of continuous and stable seismic isolation in all directions.

[0023] 2. In the present invention, the friction plate and the concave spherical surface cooperate to achieve movement in any horizontal direction, and have a certain rotation ability to avoid jamming when the seismic isolation device slides in any direction.

[0024] 3. The friction plates of the multiple spherical crowns in the present invention are all in contact with the same coating and friction material, with little sliding interference between them, and they can cooperate with each other to cope with vibrations in the horizontal and pitch directions.

[0025] 4. In the present invention, multiple spherical crowns are symmetrically arranged, and the friction plates at the ends of the multiple spherical crowns can cooperate to support the upper seat plate and the equipment during horizontal vibration to improve the seismic isolation performance and stability in any horizontal direction.

[0026] 5. In the present invention, when the multiple spherical crowns in a circular array vibrate in pitch in all directions, there are always corresponding friction plates as pitch supports to improve the seismic isolation performance and stability in the pitch direction; and they can automatically reset after the pitch vibration to cope with subsequent vibrations that may occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0028] Figure 1 It is a structural schematic diagram of the seismic isolation device in the present invention;

[0029] Figure 2 for Figure 1 A top view and a cross-sectional view;

[0030] Figure 3 for Figure 2 A partial section view of the mid-section view;

[0031] Figure 4 for Figure 1 The schematic diagram of the structure after removing the upper seat plate;

[0032] Figure 5 for Figure 4 Schematic diagram of the structure of the mesosphere crown. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are for making the present application better understood. However, those skilled in the art can easily recognize that some features can be omitted in different situations, or can be replaced by other elements, materials, methods. In some cases, some operations related to the present application are not shown or described in the specification, and this is to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations according to the description in the specification and the general technical knowledge in the art.

[0034] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations. At the same time, the steps or actions in the method description can also be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a required sequence, unless otherwise specified that a certain sequence must be followed.

[0035] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0036] The technical solutions provided by various embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0037] This embodiment provides a seismic isolation device for data center equipment, comprising:

[0038] The lower seat plate 110 is placed on a display plane, such as a display stand for equipment;

[0039] The upper seat plate 120 is arranged in a mirror image with the lower seat plate 110 and is movably installed above the lower seat plate 110. The upper seat plate 120 is used to place equipment;

[0040] A plurality of spherical crown bodies 310 are provided in the seismic isolation area between the upper seat plate 120 and the lower seat plate 110; since the upper seat plate 120 and the lower seat plate 110 are mirror-imaged and the plurality of spherical crown bodies 310 are symmetrically arranged, the force and motion states of each spherical crown body 310 when vibrated are closer, so as to facilitate coordinated seismic resistance and improve the stability of the seismic isolation device.

[0041] This embodiment uses multiple spherical crowns 310 supported between the upper seat plate 120 and the lower seat plate 110. The isolation range is large. The upper seat plate 120 can be suitable for isolation scenarios of single or multiple devices, and the specific size of the spherical crown 310 can be flexibly adjusted according to the quality and size of the equipment.

[0042] In this embodiment, friction plates 320 are embedded in the top and bottom ends of the spherical crown 310, and the embedded steps can limit the friction plates 320 to prevent them from falling off; the friction material used for the friction plates 320 is polytetrafluoroethylene, modified polytetrafluoroethylene or modified ultra-high molecular weight polyethylene.

[0043] The seismic isolation device in this embodiment can extend the natural vibration period of the upper device (equipment), and the friction material can consume a part of the seismic energy to achieve the seismic isolation effect.

[0044] A concave spherical surface 330 corresponding to the friction plate 320 is embedded in the lower surface of the upper seat plate 120 and the upper surface of the lower seat plate 110, and the embedded step can limit the friction plate 320 to slide in the concave spherical surface 330; a spherical stainless steel plate is embedded in the concave spherical surface 330 through a countersunk screw, and a coating with an ultra-low friction coefficient is sprayed on the surface of the stainless steel plate, which has the characteristics of ultra-high wear resistance, ultra-low friction coefficient, etc.; the coating can adopt polyurethane coating, polyester coating, etc. in the existing technology.

[0045] The friction plate 320 at the end of the spherical crown 310 and the concave spherical surface 330 have the same curvature radius; the friction plate 320 can slide in the corresponding concave spherical surface 330; this embodiment first uses spherical sliding instead of rail sliding, and the movement of the upper seat plate 120 is more flexible and smooth, and is not prone to jamming, which is conducive to seismic isolation. In addition, the coating with a low friction coefficient can reduce the friction force when the spherical crown 310 is started and slides relative to the seat plate, so as to ensure that the sliding friction of multiple friction plates 320 remains consistent as much as possible, thereby avoiding sliding jams in the parts with greater friction due to different friction forces, thereby maximizing the coordinated seismic isolation effect of multiple spherical crowns 310 during vibration and reducing vibration damage.

[0046] Specifically, the multiple spherical crowns 310 are symmetrically distributed relative to the vertical symmetry plane of the lower seat plate 110, and the four friction plates 320 slide in the concave spherical surface 330. The friction plates 320 and the upper and lower seat plates 110 have the same radius of curvature; thus, the friction plates 320 at the top of the multiple spherical crowns 310 together form a horizontal supporting surface, and the upper seat plate 120 can move in any horizontal direction in such a supporting surface, and the movements in different horizontal directions will not interfere with each other, so as to achieve a shock absorbing effect in the horizontal direction.

[0047] The multiple spherical crowns 310 are distributed in a circular array relative to the center position of the seat plate. When an earthquake causes the upper seat plate 120 to rotate in the pitch direction, the upper seat plate 120 can rotate with the friction plate 320 at the end of the corresponding spherical crown 310 as the pitch rotation surface, and automatically reset after the vibration to continue to maintain normal seismic isolation function.

[0048] Since devices (equipment) of different masses and sizes are different, in actual application, the effective area of ​​the friction plate 320 and the number of the spherical cap bodies 310 can be adjusted to adapt to devices (equipment) of different masses and sizes.

[0049] In addition, the seismic isolation effect of the seismic isolation device can be adjusted by adjusting the curvature radius of the concave spherical surface 330 and using friction plates 320 with different friction coefficients.

[0050] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A seismic isolation device for data center equipment, characterized in that: include: lower seat panel; An upper seat plate is arranged in a mirror image with the lower seat plate and can be movably installed above the lower seat plate, and the upper seat plate is used to place equipment; A plurality of spherical crowns are arranged in the seismic isolation area between the upper seat plate and the lower seat plate; The top and bottom ends of the spherical crown are both embedded with friction plates, and the lower surface of the upper seat plate and the upper surface of the lower seat plate are both embedded with concave spherical surfaces corresponding to the friction plates, and the friction plates can slide in the corresponding concave spherical surfaces; The multiple spherical crowns are symmetrically distributed relative to the vertical symmetry plane of the lower seat plate; the multiple spherical crowns are distributed in a circular array relative to the center position of the seat plate portion.

2. A seismic isolation device for data center equipment according to claim 1, characterized in that: The friction plate and the concave spherical surface have the same curvature radius.

3. The seismic isolation device for data center equipment according to claim 1, characterized in that: The friction material used in the friction plate is polytetrafluoroethylene, modified polytetrafluoroethylene or modified ultra-high molecular weight polyethylene.

4. The seismic isolation device for data center equipment according to claim 1, characterized in that: A spherical stainless steel plate is arranged on the concave spherical surface.

5. The seismic isolation device for data center equipment according to claim 1, characterized in that: The surface of the stainless steel plate is provided with a coating with a low friction coefficient, and the friction plate is in contact with the coating.

6. The seismic isolation device for data center equipment according to claim 5, characterized in that: The spherical stainless steel plate is embedded in the lower surface of the upper seat plate and the upper surface of the lower seat plate.

7. The seismic isolation device for data center equipment according to claim 1, characterized in that: The number of the spherical crowns is four or more.

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