CN112555319A - Cultural relic shock isolation device suitable for whole-body showcase - Google Patents

Abstract

The invention discloses a cultural relic shock isolation device suitable for a full-body showcase, and belongs to the technical field of engineering structure shock isolation and shock absorption. The device mainly comprises a cover plate, a shock insulation support and a damping mechanism, wherein the shock insulation support and the damping mechanism are arranged on a base in the showcase along the length direction of the showcase; the lower part of the cover plate is fixedly connected with a shock insulation support and a damping mechanism, and the length direction of the cover plate is consistent with that of the display cabinet; the shock insulation support provides vertical support and has the functions of motion resetting and horizontal decoupling; the damping mechanism provides damping for relative motion between the cover plate and the base in the showcase. The invention integrates the functions of shock insulation and damping along the length direction of the showcase, and a plurality of cultural relics can be intensively placed above the device, thereby avoiding configuring independent shock insulation supports for a single cultural relic, reducing the exhibition cost and improving the space utilization rate of the showcase.

Description

Cultural relic shock isolation device suitable for whole-body showcase

Technical Field

The invention belongs to the technical field of engineering structure shock insulation and shock absorption, and particularly relates to a cultural relic shock insulation device used in a whole-body showcase.

Background

The seismic isolation technology is characterized in that a seismic isolation layer is arranged between a foundation and an upper structure, a frequency section which is close to the natural vibration frequency of the structure in input seismic waves is filtered, and the transmission of seismic energy to the upper structure is controlled, so that the purposes of seismic isolation and shock absorption are achieved.

With the continuous progress of the research of the technology in the museum cultural relic protection field, the quakeproof device for floating cultural relics in the collection of the museum can be developed and perfected in succession. The shock insulation support is arranged at the bottom of the showcase or the cultural relics and generates a shock insulation effect through a mechanical motion principle. Because they have the advantages of low cost, practicality, convenience, good shockproof effect, no influence on the appearance of the cultural relics, etc., they are widely applied in the museum field. In the museum exhibition hall, besides the independent showcase, a whole showcase is provided. The size of the showcase is long, the showcase is usually arranged along a wall, so that shock insulation measures at the bottom of the showcase are limited, shock insulation in the showcase is generally adopted, namely a shock insulation support is arranged on a base in the showcase, cultural relics are placed on the shock insulation support, and the shock insulation support and the cultural relics are displayed together. The space in the cabinet is narrow and cannot influence the display effect, and the volume of the shock insulation support at the bottom of the cultural relic needs to be as small as possible, so that the layout design of each functional component in the support is not facilitated; and if every historical relic bottom installation isolation bearing, all need to leave the migration distance between the support, neither economical, space utilization in the cabinet is also low.

Disclosure of Invention

In view of the above, the invention provides a cultural relic vibration isolation device suitable for a whole showcase, the device integrates the vibration isolation and damping functions along the length direction of the showcase, a plurality of cultural relics can be intensively placed above the device, an independent vibration isolation support is prevented from being configured on a single cultural relic, the exhibition cost is reduced, and the space utilization rate of the showcase is improved.

A cultural relic shock isolation device suitable for a whole-body showcase comprises a cover plate, a shock isolation support and a damping mechanism; the shock insulation support and the damping mechanism are arranged on a base in the showcase along the length direction of the showcase; the lower part of the cover plate is fixedly connected with a shock insulation support and a damping mechanism, and the length direction of the cover plate is consistent with that of the display cabinet; the shock insulation support provides vertical support and has the functions of motion resetting and horizontal decoupling; damping mechanism provides the damping for the relative motion between apron and the showcase inner base.

Further, the shock insulation support comprises a top plate layer, a roller layer, a middle conversion layer and a bottom plate layer; the structure of the top plate layer is the same as that of the bottom plate layer, the roller layers are two-layer, and the upper surface and the lower surface of the middle conversion layer are movably connected with the top plate layer and the bottom plate layer through the roller layers.

Further, the top plate layer comprises a shock insulation mounting plate, a curved surface track, a linear sliding rail, a sliding block, a guide shaft and a limit screw; the linear slide rail and the curved surface rail are fixed on the surface of the shock insulation mounting plate in a bilateral symmetry mode, the sliding block is in sliding fit with the linear slide rail, the sliding block is fixedly connected with a guide shaft, the guide shaft is used for being matched and connected with a lifting seat in the roller layer, and the limiting screw is connected to the top end of the guide shaft and used for axially limiting the lifting seat.

Further, the roller layer comprises a frame, rollers and a lifting seat; the left side and the right side of the frame are provided with rollers through roller mounting shafts, the inner side and the outer side of the position of the roller mounted on the frame are respectively provided with a lifting seat, and round holes in the lifting seats are in sliding fit with guide shafts in the top plate layer, the middle conversion layer and the bottom plate layer.

Furthermore, the middle conversion layer comprises a middle plate, a curved track, a linear slide rail, a slide block, a guide shaft and a limit screw; the upper surface and the lower surface of the middle plate are provided with a curved track, a linear slide rail, a matched slide block, a guide shaft and a limit screw, and the upper surface and the lower surface are arranged in a cross-shaped orthogonal manner; the installation relation of the curved surface track, the linear slide rail, the slide block, the guide shaft and the limiting screw on the middle plate is consistent with that of the top plate layer.

Furthermore, the top plate layer and the middle conversion layer are connected with the roller layer lifting seat in a matched mode through self guide shafts, rollers on the roller layer are matched with the curved surface rails on the top plate layer and the middle conversion layer respectively, and the curved surface rails are matched with the rollers to provide vertical support for the adjacent layers and provide restoring force for the adjacent layers to return to the initial positions; the slide block is matched with the linear slide rail to provide guiding and lateral supporting force for the movement of the roller layer, and the matching of the guide shaft and the lifting seat can adapt to the height change of the roller layer in the movement process along the curved track; the backplane layer and the intermediate conversion layer are connected in the same manner.

Furthermore, locating parts are installed on the installation plates of the top plate layer, the middle conversion layer and the bottom plate layer, and the locating parts are used for limiting the horizontal limit positions of all layers of movement.

Furthermore, the damping mechanism comprises an upper damping component and a lower damping component which have the same structure, the upper damping component and the lower damping component are connected together in a cross-orthogonal mode through a limiting pin and a limiting connecting plate, the limiting connecting plate is provided with four ends, two opposite ends are planes, the other two opposite ends are bent at 90 degrees, and a linear guide groove is machined on the bent surface; the upper damping assembly and the lower damping assembly are respectively fixedly connected with a limiting connecting plate, after the upper damping assembly and the lower damping assembly are placed in a cross mode, bending surfaces of the upper limiting connecting plate and the lower limiting connecting plate are opposite to a plane end, a limiting pin penetrates through a linear guide groove of the bending surfaces and then is fixed on the end surface of the plane end, therefore, the upper damping assembly and the lower damping assembly are connected together, and the upper damping assembly and the lower damping assembly adapt to height change through the linear guide groove.

Furthermore, go up damping subassembly and lower damping subassembly and all include damping mounting panel, lead screw, attenuator mount pad, rotary damper, slide rail, nut and slider.

The screw rod is supported on the damping mounting plates through the damper mounting seats at two ends, the rotary damper is fixed on the damper mounting seats, and a rotary shaft of the rotary damper is connected with the end part of the screw rod; the nut is sleeved on the screw rod, sliding rails fixed on the damping mounting plate are arranged on two sides of the screw rod, sliding blocks are arranged on the sliding rails and matched with the sliding rails, and the nut and the sliding blocks are fixedly connected with the limiting connecting plate.

Has the advantages that:

1. according to the invention, a plurality of shock insulation supports and damping mechanisms can be arranged below the cover plate as required, wherein the shock insulation supports provide supporting force and have the functions of movement resetting and horizontal decoupling, and the damping mechanisms apply damping to relative movement, so that the above components form a complete strip-shaped shock isolator, a plurality of cultural relics can be intensively placed above the cover plate, the configuration of independent shock insulation supports for a single cultural relic is avoided, the exhibition cost is reduced, and the space utilization rate of the exhibition cabinet is improved.

2. According to the shock insulation support, the top plate layer, the middle conversion layer, the bottom plate layer and the roller layer are connected after hole-shaft matching is carried out through the guide shaft and the lifting seat, the top end of the guide shaft is provided with the limiting screw, so that the layers are prevented from being separated from each other, and the integrity of the shock insulation device is enhanced.

3. The shock insulation support of the invention adopts the curved surface track for supporting, and the roller can generate vertical supporting force and horizontal restoring force in the motion process of the curved surface track, thereby realizing the automatic reset of the bearing object. Because the curved surface track and the roller only play a supporting role, the function is simplified, and the processing difficulty of the curved surface track and the roller is reduced.

4. The invention has an independent damping mechanism, and the shock insulation support does not need to be designed with damping, and only measures are taken to reduce the friction force between parts in the shock insulation support, thereby reducing the design and processing difficulty of the support and ensuring that the damping of the whole device is easy to adjust and control.

5. The damping mechanism provided by the invention has the advantages that the limiting connecting plate is matched with the limiting pin, so that the rotating motion of the upper damping component and the lower damping component is limited, the vertical movement of the upper damping component and the lower damping component is also limited, and the integral anti-torsion and anti-pulling capacity of the device is enhanced.

Drawings

FIG. 1 is a schematic view of the overall structure of the seismic isolation device for cultural relics of the present invention;

FIG. 2 is an isometric view of the seismic isolation bearing structure of the present invention;

FIG. 3 is a side view of the seismic isolation bearing structure of the present invention;

FIG. 4 is an exploded view of the seismic isolation bearing of the present invention;

FIG. 5 is a schematic structural view of a top sheet layer and a bottom sheet layer;

FIG. 6 is a schematic structural diagram of a roller layer;

FIG. 7 is a schematic diagram of an intermediate conversion layer;

FIG. 8 is a schematic view of the fitting relationship between the guide shaft and the lifting seat;

FIG. 9 is a schematic view of the relationship between the rollers and the curved tracks;

FIG. 10 is a schematic view of a spacing screw;

FIG. 11 is a schematic structural view of the lifting base;

FIG. 12 is a schematic view of the construction of the guide shaft;

FIG. 13 is a schematic view of the roller mounting shaft;

FIG. 14 is a schematic structural view of a damping mechanism;

FIG. 15 is an assembled relationship view of the upper damping assembly;

FIG. 16 is an exploded view of the upper damping assembly;

FIG. 17 is a schematic view showing the fitting relationship of the guide connecting plates;

FIG. 18 is a schematic view of a damper mount;

fig. 19 is a schematic view of the structure of the rotary damper.

Wherein, 1-cover plate, 2-vibration isolation support, 3-damping mechanism, 4-top plate layer, 5-roller layer, 6-middle conversion layer, 7-bottom plate layer, 8-vibration isolation mounting plate, 9-curved track, 10-linear slide rail, 11-slide block, 12-guide shaft, 13-limit screw, 14-frame, 15-roller, 16-lifting seat, 17-intermediate plate, 18-limiting piece, 19-upper damping component, 20-lower damping component, 21-damping mounting plate, 22-lead screw, 23-damper mounting seat, 24-rotary damper, 25-slide rail, 26-nut, 27-slide block, 28-limiting pin, 29-limiting connecting plate and 30-roller mounting shaft.

Detailed Description

The invention is described in detail below by way of example with reference to the accompanying drawings.

As shown in the attached figure 1, the invention provides a cultural relic shock isolation device suitable for a whole-body showcase, the shock isolation device comprises a strip-shaped cover plate 1, two shock isolation supports 2 and a damping mechanism 3, the two shock isolation supports 2 are fixed below the cover plate 1 and positioned at the left end and the right end, the damping mechanism 3 is also fixed below the cover plate 1 and positioned in the middle of the two shock isolation supports 2, the shock isolation supports 2 have the functions of motion resetting and horizontal decoupling, and the damping mechanism 3 provides damping for the relative motion between the cover plate 1 and a base in the showcase.

As shown in fig. 2, 3 and 4, the seismic isolation bearing 2 has five layers in total, which are respectively from top to bottom: the device comprises a top plate layer 4, a roller layer 5, a middle conversion layer 6, a roller layer 5 and a bottom plate layer 7; wherein: the top plate layer 4 and the bottom plate layer 7 are identical in structure, and the upper surface and the lower surface of the middle conversion layer 6 are movably connected with the top plate layer 4 and the bottom plate layer 7 through the roller layer 5 respectively.

As shown in fig. 5, the top plate layer 4 comprises a shock insulation mounting plate 8, four curved surface rails 9, two linear slide rails 10, a slide block 11, a guide shaft 12 and a limit screw 13; the linear slide rail 10 and the curved surface rail 9 are fixed on the surface of the shock insulation mounting plate 8 in a bilateral symmetry manner, the two linear slide rails 10 are fixed on the surface of the shock insulation mounting plate 8 in a bilateral symmetry manner, a set of four curved surface rails 9 are fixed on the outer side of the linear slide rail 10 respectively in a pairwise manner, the slide block 11 is in sliding fit with the linear slide rail 10, the slide block 11 is fixedly connected with the guide shaft 12, the guide shaft 12 is used for being matched and connected with the lifting seat 16 in the roller layer 5, the limiting screw 13 is connected to the top end of the guide shaft and used for axially limiting the lifting seat 16, and the matching.

Wherein, the structure of the limiting screw is shown in figure 10; the structure of the guide shaft 12 is as shown in fig. 12, the guide shaft 12 is composed of an upper part and a lower part, the upper part is cylindrical and is used for being matched with a round hole on the lifting seat 16 in a hole-shaft mode, a screw hole is formed in the top surface of the cylindrical and is used for being connected with a limiting screw 13, and the lower part is of a flange structure and is used for being fixedly connected with the sliding block 11.

As shown in fig. 6, the roller layer 5 includes a frame 14, rollers 15 and a lifting base 16; the left side and the right side of the frame 14 are provided with rollers 15 through roller mounting shafts 30, the inner side and the outer side of the position of the frame 14 where the rollers are mounted are respectively provided with a lifting seat 16, the structure of the lifting seat 16 is shown in figure 11, the lifting seat 16 is composed of two rectangular blocks, one rectangular block is used for being connected with the frame 14, the other rectangular block is provided with a circular through hole, the through hole is matched with the guide shaft 12, the matching relation is shown in figure 8, and the structure of the roller mounting shafts 30 is shown in figure 13.

As shown in fig. 7, the intermediate conversion layer 6 includes an intermediate plate 17, a curved track 9, a linear slide rail 10, a slider 11, a guide shaft 12, a limit screw 13, and a limit member 18; the upper surface and the lower surface of the middle plate 17 are provided with a curved track 9, a linear slide rail 10, a slide block 11, a guide shaft 12 and a limit screw 13, and the upper surface and the lower surface are orthogonally arranged. The installation relation of the curved track 9, the linear slide rail 10, the slide block 11, the guide shaft 12 and the limit screw 13 on the middle plate 17 is consistent with that of the top plate layer 4.

The top plate layer 4 and the middle conversion layer 6 are connected after being matched with the lifting seat 16 of the roller layer 5 through the self guide shaft 12, and the rollers on the roller layer 5 are respectively matched with the curved surface tracks on the top plate layer 4 and the middle conversion layer 6 at the same time, as shown in fig. 9. The curved surface track is matched with the roller to provide vertical support for each adjacent layer and provide restoring force for returning to the initial position; the slide block 11 is matched with the linear slide rail 10 to provide guiding and lateral supporting force for the movement of the roller layer 5, and the matching of the guide shaft 12 and the lifting seat 16 can adapt to the height change of the roller layer 5 in the movement process along the curved track; the floor layer 7 and the intermediate conversion layer 6 are connected in the same manner.

As shown in fig. 14, the damping mechanism 3 includes an upper damping member 19 and a lower damping member 20 which are identical in structure, and the upper damping member 19 and the lower damping member 20 are connected to each other in a cross-orthogonal manner by a stopper pin 28 and a stopper link plate 29. As shown in fig. 17, the restraining connection plate 29 is cross-shaped, and the restraining connection plate 29 has a total of four ends, two opposite ends of which are flat surfaces having holes therein. The other two opposite ends are bent at 90 degrees, and a linear guide groove is processed on the bending surface; the upper damping component and the lower damping component are respectively fixedly connected with a limiting connecting plate, after the upper damping component and the lower damping component are arranged in a cross manner, the bending surfaces of the upper limiting connecting plate 29 and the lower limiting connecting plate 29 are opposite to the plane end, and a limiting pin 28 penetrates through the linear guide groove of the bending surface and then is fixed in the hole of the plane end, so that the upper damping component 19 and the lower damping component 20 are connected together, the upper damping component 19 and the lower damping component 20 adapt to the change of height through the linear guide groove, and the matching relation is shown in figure 16.

As shown in fig. 15, each of the upper damping assembly 19 and the lower damping assembly 20 includes a damping mounting plate 21, a lead screw 22, a damper mounting seat 23, a rotary damper 24, a slide rail 25, a nut 26 and a slider 27;

the screw 22 is supported on the damping mounting plate 21 through a damper mounting seat 23, the end part of the screw 22 is connected with a rotating shaft of a rotary damper 24, and a nut 26 is sleeved on the screw 22; the two sides of the screw 22 are fixed with slide rails 25, the slide rails 25 are provided with slide blocks 27 for matching, the nut 26 and the slide block 27 are simultaneously fixed with a limit connecting plate 29, and the structures of the damper mounting seat 23 and the rotary damper 24 are shown in fig. 18 and fig. 19.

When the upper damping component 19 and the lower damping component 20 have a tendency of relative movement, the limiting connection plate 29 simultaneously drives the nut 26 and the slider 27 to do linear motion, because the nut 26 is in threaded fit with the lead screw 22, the nut 26 drives the lead screw 22 to rotate, and further drives the rotary damper 24 at the end part to rotate, and the magnitude of the damping force can be adjusted by the thread pitch of the lead screw 22 and the rotary damper 24.

The working principle is as follows: the whole device is fixed on a base in a display cabinet through a shock insulation mounting plate 8 at the bottom layer of a shock insulation support 2 and a damping mounting plate 21 at the bottom layer of a damping mechanism 3, correspondingly, mounting plates at the top layers are connected with a cover plate 1, and protected cultural relics are placed on the cover plate 1; in the initial state, under the action of gravity, the rollers 15 on the roller layer 5 are all located at the lowest point of the curved track 9. When earthquake happens, earthquake waves are transmitted to the base in the showcase firstly, the rollers 15 roll on the curved surface rails 9, and the guide shafts 12 and the lifting seats 16 are matched to provide guidance for movement and play a role in adapting to high change of each layer in the movement process. The damping mechanism 3 is used for absorbing vibration energy during the reciprocating motion of the roller layer 5 on the curved track 9. When the cover plate 1 moves towards a certain direction, the damping mechanism 3 can decompose any horizontal movement of the cover plate 1 into two orthogonal linear movements, at this time, the sliders 27 in the upper damping component 19 and the lower damping component 20 respectively slide relative to the corresponding slide rails 25 to drive the nuts 26 to move horizontally, so as to drive the screw rod 22 to rotate around the axis of the screw rod, and the rotating energy is absorbed by the rotary dampers 24 at the end parts. The upper damping assembly 19 and the lower damping assembly 20 are matched with the linear guide groove on the limit connecting plate 29 and the limit pin 28 to adapt to height change generated in the movement process of the vibration isolation support 2.

In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. A cultural relic shock isolation device suitable for a whole-body showcase is characterized by comprising a cover plate, a shock isolation support and a damping mechanism; the shock insulation support and the damping mechanism are arranged on a base in the showcase along the length direction of the showcase; the lower part of the cover plate is fixedly connected with a shock insulation support and a damping mechanism, and the length direction of the cover plate is consistent with that of the display cabinet; the shock insulation support provides vertical support and has the functions of motion resetting and horizontal decoupling; damping mechanism provides the damping for the relative motion between apron and the showcase inner base.

2. The cultural relic isolation device suitable for the whole body showcase as claimed in claim 1, wherein the isolation bearing comprises a top plate layer, a roller layer, an intermediate conversion layer and a bottom plate layer; the structure of the top plate layer is the same as that of the bottom plate layer, the roller layers are two-layer, and the upper surface and the lower surface of the middle conversion layer are movably connected with the top plate layer and the bottom plate layer through the roller layers.

3. The cultural relic vibration isolation device suitable for the whole body showcase as claimed in claim 2, wherein the top plate layer comprises a vibration isolation mounting plate, a curved surface track, a linear slide rail, a slide block, a guide shaft and a limit screw; the linear slide rail and the curved surface rail are fixed on the surface of the shock insulation mounting plate in a bilateral symmetry mode, the sliding block is in sliding fit with the linear slide rail, the sliding block is fixedly connected with a guide shaft, the guide shaft is used for being matched and connected with a lifting seat in the roller layer, and the limiting screw is connected to the top end of the guide shaft and used for axially limiting the lifting seat.

4. The cultural relic isolation device suitable for the whole body showcase as claimed in claim 3, wherein the roller layer comprises a frame, rollers and a lifting seat; the left and right sides of the frame are provided with rollers through roller mounting shafts, the frame is further provided with a lifting seat, and round holes in the lifting seat are in sliding fit with guide shafts in the top plate layer, the middle conversion layer and the bottom plate layer.

5. The cultural relic vibration isolation device suitable for the whole body showcase as claimed in claim 4, wherein the middle conversion layer comprises a middle plate, a curved surface track, a linear sliding rail, a sliding block, a guide shaft and a limit screw; the upper surface and the lower surface of the middle plate are provided with a curved track, a linear slide rail, a matched slide block, a guide shaft and a limit screw, and the upper surface and the lower surface are arranged in a cross-shaped orthogonal manner; the installation relation of the curved surface track, the linear slide rail, the slide block, the guide shaft and the limiting screw on the middle plate is consistent with that of the top plate layer.

6. The cultural relic isolation device suitable for the whole body showcase as claimed in claim 5, wherein the top plate layer and the middle conversion layer are in fit connection with the roller layer lifting seat through self-guide shafts, the rollers on the roller layer are respectively matched with the curved surface tracks on the top plate layer and the middle conversion layer at the same time, and the matching of the curved surface tracks and the rollers provides vertical support for the adjacent layers and provides restoring force for the adjacent layers to return to the initial position; the slide block is matched with the linear slide rail to provide guiding and lateral supporting force for the movement of the roller layer, and the matching of the guide shaft and the lifting seat can adapt to the height change of the roller layer in the movement process along the curved track; the backplane layer and the intermediate conversion layer are connected in the same manner.

7. The cultural relic vibration isolation device suitable for the whole body showcase as claimed in claim 6, wherein limiting members are arranged on the mounting plates of the top plate layer, the middle conversion layer and the bottom plate layer, and the limiting members limit the limit positions of the movement of each layer.

8. The cultural relic vibration isolation device suitable for the whole body showcase as claimed in claim 7, wherein the damping mechanism comprises an upper damping component and a lower damping component which have the same structure, the upper damping component and the lower damping component are connected together in a cross orthogonal mode through a spacing pin and a spacing connecting plate, the spacing connecting plate is provided with four ends, two opposite ends are planes, the other two opposite ends are bent at 90 degrees, and a straight guide groove is processed on the bent surface; the upper damping assembly and the lower damping assembly are respectively fixedly connected with a limiting connecting plate, after the upper damping assembly and the lower damping assembly are placed in a cross mode, bending surfaces of the upper limiting connecting plate and the lower limiting connecting plate are opposite to a plane end, a limiting pin penetrates through a linear guide groove of the bending surfaces and then is fixed on the end surface of the plane end, therefore, the upper damping assembly and the lower damping assembly are connected together, and the upper damping assembly and the lower damping assembly adapt to height change through the linear guide groove.

9. The cultural relic vibration isolation device suitable for the whole body showcase as claimed in claim 8, wherein the upper damping assembly and the lower damping assembly respectively comprise a damping mounting plate, a screw rod, a damper mounting seat, a rotary damper, a slide rail, a nut and a slide block;

the screw rod is supported on the damping mounting plates through the damper mounting seats at two ends, the rotary damper is fixed on the damper mounting seats, and a rotary shaft of the rotary damper is connected with the end part of the screw rod; the nut is sleeved on the screw rod, sliding rails fixed on the damping mounting plate are arranged on two sides of the screw rod, sliding blocks are arranged on the sliding rails and matched with the sliding rails, and the nut and the sliding blocks are fixedly connected with the limiting connecting plate.

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