CN111550521A

CN111550521A - Three-way shock isolation device for cultural relics and display cabinet

Info

Publication number: CN111550521A
Application number: CN202010516172.XA
Authority: CN
Inventors: 盛鹰; 贾彬; 吴时程; 刘彤; 王汝恒
Original assignee: Southwest University of Science and Technology
Current assignee: Southwest University of Science and Technology
Priority date: 2020-06-09
Filing date: 2020-06-09
Publication date: 2020-08-18

Abstract

The invention discloses a three-way shock isolation device for cultural relics and a display cabinet, which belongs to a shock isolation device and comprises an upper supporting plate, wherein the upper supporting plate is fixed on a sleeve; a friction support pad is arranged below the sleeve, and the annular disc and the rubber ring are both surrounded on the periphery of the friction support pad; through with arch form rubber spare suit on the sleeve for sleeve and last supporting plate are supported by arch form rubber spare, utilize the material toughness of arch form rubber spare, can effectively reduce last supporting plate vibrations, and carry out relative displacement through sleeve lower extreme and friction supporting pad and produce the friction power consumption, thereby consume vibrations amplitude and frequency, thereby no matter be horizontal vibration wave or vertical vibration wave, all can be by the sleeve, arch form rubber spare realizes the shock insulation with the structure of friction supporting pad combination.

Description

Three-way shock isolation device for cultural relics and display cabinet

Technical Field

The invention relates to a vibration isolation device, in particular to a three-way vibration isolation device which can be used for cultural relics and display cabinets.

Background

Museum collections of cultural relics are often stored in "floating" fashion in a cultural relic storage cabinet. When an earthquake occurs, earthquake waves are transmitted to the building of the museum from the ground, transmitted to the cultural relic storage cabinet through floors of all layers of the museum and transmitted to the cultural relics. A large number of cultural relics storage cabinets are all floated on the floor surface, and the cultural relics storage cabinets and the cultural relics floated in the cultural relics storage cabinets are damaged due to shaking, jumping, slipping, twisting, collision and the like caused by three-dimensional earthquake acceleration transmitted by the floor surface. When the center of gravity of the storage cabinet exceeds the overturning critical state, the cabinet body can also be overturned integrally, so that the cultural relics in the interior of the cabinet are destroyed. The traditional cultural relics are usually earthquake-resistant by adopting a specific fixed connecting device to fix the cultural relics, and the fixed connecting device is usually used for connecting the cultural relics with the surface of the cabinet body in a mechanical engagement mode according to the structural characteristics of different cultural relics, so that the earthquake-resistant purpose is achieved by utilizing a certain earthquake-resistant capacity of the cultural relics, such as a gravity center reduction method, a side branch method, an adhesive method, a suspension method and the like. Although the methods can reduce the damage of earthquake action to cultural relics to a certain extent, the methods have the following problems:

firstly, the exhibition effect is influenced by adopting a method for limiting the displacement of the cultural relics. Secondly, the integrity of the cultural relics is affected by the gluing method. Thirdly, when an earthquake happens, as the wall body and the floor slab vibrate, rock and even generate larger displacement, the cultural relics rack, the showcase and the exhibition stand in the museum storehouse and the exhibition hall can be moved, rocked and overturned. The modes of gravity center lowering, side supporting, hanging and the like can still cause the cultural relics to overturn or fall and break, and even some movable display cabinets move and collide with walls, columns and other display cabinets due to the shaking of the ground, so that the cultural relics are overturned, damaged and even fly out.

Modern shock insulation method of historical relic mainly adopts the shock insulation device of different principles to carry out the shock insulation, and its main shock insulation mode utilizes the thought of "keeping apart", uses shock insulation device to keep apart historical relic and storage cabinet surface, and the device itself has damping characteristic and the characteristic of increase cycle, and when applying external excitation to the structure, shock insulation device can carry out the consumption of energy and the extension of natural vibration cycle passively, avoids the upper portion to take place to destroy because of resonating. The modern cultural relic shock insulation method mainly comprises the following steps: ball type vibration isolation devices, roller type vibration isolation devices and the like. For example, the chinese utility model patent with publication number CN208096552U proposes a rigidity-variable museum cultural relic vibration-isolating support. The shock insulation principle is mainly that the roller horizontally moves in a rail way along the direction of X, Y, the period of the system is prolonged, and meanwhile, the sliding rail and the roller generate friction to consume energy, so that the shock absorption effect is achieved. The device needs a spring for resetting, and the variable stiffness characteristic of the device can avoid the generation of resonance effect, but the cultural relic shock isolation device has the defects that: the shock insulation device does not have a vertical shock insulation function and only can realize the horizontal shock insulation of cultural relics. And the floor waves are three-way waves, and the vertical waves can cause the cultural relics to jump and be damaged. And deformation reset needs to set up the spring, and the restoring force is provided by the gravity of device and above-mentioned historical relic, and damping force is little, and some components are comparatively complicated. And the shock insulation device is only used for shock insulation of a single cultural relic and cannot carry out integral shock insulation on the cultural relic storage cabinet. Therefore, further research and improvement on the structure of the seismic isolation device for the cultural relics are needed.

Disclosure of Invention

One of the objectives of the present invention is to provide a three-way shock isolation device for cultural relics and display cabinets, so as to solve the technical problems that the displacement of the cultural relics is limited by the similar shock isolation devices in the prior art, the exhibition effect is affected, the display cabinets, the prices of the cultural relics, etc. are easy to shake or turn over when large shock occurs, the cultural relics fall or fall, and the vertical shock isolation function is not provided.

In order to solve the technical problems, the invention adopts the following technical scheme:

the invention provides a three-way shock isolation device for cultural relics and display cabinets, which comprises an upper support plate, wherein the upper support plate is fixed on a sleeve, an arch-shaped rubber piece is sleeved outside the sleeve, the lower part of the arch-shaped rubber piece is arranged in a tray body, the tray body is arranged on a rubber disc, the rubber disc is arranged on an upper bottom plate, and the upper bottom plate is arranged on a lower bottom plate through an adjustable piece. A friction supporting pad is installed below the sleeve, and the lower portion of the friction supporting pad is flush with the tray body and the rubber disc. The friction support pad comprises a pad body, a pad body is fixed on the upper portion of the pad body, a spherical lining plate is arranged on the upper portion of the pad body, the lower end of the sleeve is matched with the spherical lining plate, and the pad plate is detachably mounted on the upper base plate.

Preferably, the further technical scheme is as follows: and a spherical sliding plate is arranged on the contact surface of the upper part of the spherical lining plate and the lower end of the sleeve.

The further technical scheme is as follows: the sleeve is of a hollow structure and supported by the arch-shaped rubber piece, and a gap is kept between the lower end of the sleeve and the spherical lining plate in a normal state.

The further technical scheme is as follows: the contact surface of the upper part of the arch-shaped rubber part and the upper part of the sleeve is an arc surface.

The further technical scheme is as follows: the upper supporting plate, the sleeve, the arch-shaped rubber piece, the tray body, the rubber disc and the central axis of the friction supporting pad are all overlapped with each other.

The further technical scheme is as follows: the outer border of the tray body is provided with an annular blocking edge, and the outer side of the lower portion of the arch-shaped rubber part is inconsistent with the blocking edge.

The further technical scheme is as follows: the cushion plate body is installed on the upper base plate through bolts, and the edges of the upper base plate and the cushion plate body are provided with step surfaces which are matched with each other.

The further technical scheme is as follows: the upper bottom plate is also mounted on the lower bottom plate through bolts.

The further technical scheme is as follows: the material of the cushion block body is rubber, the tray body and the rubber disc are both annular, and a gap is kept between the cushion block body and the annular inner edge of the tray body and the annular inner edge of the rubber disc.

Compared with the prior art, the invention has the following beneficial effects: the arch-shaped rubber part is sleeved on the sleeve, so that the sleeve and the upper supporting plate are supported by the arch-shaped rubber part, the vibration of the upper supporting plate can be effectively reduced by utilizing the material toughness of the arch-shaped rubber part, and the lower end of the sleeve and the friction supporting pad are subjected to relative displacement to generate friction energy consumption, so that the vibration amplitude and frequency are consumed, and the vibration of the upper supporting plate is further reduced, so that the vibration isolation can be realized by the combined structure of the sleeve, the arch-shaped rubber part and the friction supporting pad no matter horizontal vibration waves or vertical vibration waves.

Drawings

Fig. 1 is a schematic structural diagram for explaining an embodiment of the present invention.

Fig. 2 is a schematic view of the friction support pad structure of fig. 1.

Fig. 3 is a usage state diagram for explaining one embodiment of the present invention.

Fig. 4 is a use state diagram for explaining another embodiment of the present invention.

In the figure, 1 is an upper supporting plate, 2 is a sleeve, 3 is an arch-shaped rubber piece, 4 is a tray body, 41 is an annular retaining edge, 5 is a rubber disc, 6 is an upper bottom plate, 7 is a lower bottom plate, 8 is a friction supporting pad, 81 is a cushion body, 82 is a cushion body, 83 is a spherical lining plate, 84 is a spherical sliding plate, 9 is a bolt, 10 is a shock isolation device, 11 is a cultural relic, and 12 is a cultural relic cabinet.

Detailed Description

The invention is further elucidated with reference to the drawing.

Referring to fig. 1, an embodiment of the present invention is a three-way seismic isolation device for cultural relics and display cabinets, and fig. 1 is a schematic longitudinal sectional view of the device, the device includes an upper supporting plate 1, the upper supporting plate 1 is fixed on a sleeve 2, the upper supporting plate 1 and the sleeve 2 can be welded and fixed, and the two are welded and need to be centered, the upper part of the upper supporting plate 1 can be used for placing a cultural relic or a cultural relic tray. Importantly, the outer side of the sleeve 2 is sleeved with the arch-shaped rubber part 3, the arch-shaped rubber part 3 can be designed into a cylindrical or annular structure so as to surround the outer side of the sleeve 2, the upper part of the arch-shaped rubber part 3 can be in close contact with the outer side of the sleeve 2, and the function of cushioning or shock insulation can be achieved by utilizing the toughness of the rubber material. The lower part of the aforementioned arch-shaped rubber member 3 is placed in a tray body 4, and the lower part of the tray body 4 is padded with a rubber pan 5, that is, the tray body 4 is mounted on the rubber pan 5, and the rubber pan 5 is mounted on an upper base plate 6, and the upper base plate 6 is mounted on a lower base plate 7 through an adjustable member, so that the distance between the upper base plate 6 and the lower base plate 7 is adjusted, thereby adjusting the overall height of the device.

Based on the above structure, it is more important to install a friction support pad 8 under the sleeve 2, and to make the lower part of the friction support pad 8 flush with the tray body 4 and the rubber disc 5, that is, the friction support pad 8 can be placed at the center position of the tray body 4 and the rubber disc 5 as shown in fig. 1. The friction support pad 8 is a combined structure, and as shown in fig. 2, it includes a pad body 81, a pad body 82 is fixed on the upper portion of the pad body 81, and a spherical lining board 83 is fixed on the upper portion of the pad body 82, and correspondingly, the lower end of the sleeve 2 needs to be designed to be matched with the spherical lining board 83, so that the two can be rubbed, thereby consuming the vibration energy caused by three-way vibration waves. The friction support pad 8 can be mounted with its pad body 81 detachably mounted directly on the upper plate 6, as shown in fig. 1, the pad body 81 can be designed flush with the upper plate 6. Simultaneously this friction support pad 8 is removable, also can design the thickness of plate body 81 according to required actual height, also can change when the frictional force of friction support pad 8 and sleeve 2 lower extreme reduces or loses efficacy to guarantee the validity of device shock insulation.

In order to facilitate disassembly, the pad body 81 can be directly installed on the upper base plate 6 in a detachable mode such as a bolt 9, and the edges of the upper base plate 6 and the pad body 81 are provided with mutually matched step surfaces, so that the matching degree of the upper base plate and the pad body is increased, and the shock insulation function is prevented from being influenced due to the existence of a gap. In addition, for assisting the shock insulation, the pad body 82 is made of rubber, and in order to make the lower portion of the friction support pad 8 flush with the tray body 4 and the rubber disc 5, the tray body 4 and the rubber disc 5 can be designed into a ring shape, and a gap is kept between the pad body 82 and the inner edges of the tray body 4 and the rubber disc 5. Preferably, based on the same idea of detachably fixing the cushion body 81 on the upper bottom plate 6, the upper bottom plate 6 can also be mounted on the lower bottom plate 7 through the bolt 9, and the distance between the upper bottom plate 6 and the lower bottom plate 7 can be adjusted through the bolt 9, so as to adjust the overall height of the shock isolation device, so as to adapt to different cultural relics and cultural relic cabinets/racks.

Based on the structure described in the above embodiments, the inventor considers the supporting strength of the three-way seismic isolation device, adopts a material of a combination of steel and rubber, realizes the seismic isolation effect of supporting and buffering the steel parts by the toughness of the rubber, and can also improve the supporting strength of the device by the steel. The backing plate 81 and the spherical backing plate 83, such as the upper supporting plate 1, the sleeve 2, the tray body 4 and the friction supporting pad 8, can be made of metal steel, and each steel part and the rubber can be fixedly connected by gluing.

Further, the friction support pad 8 is an energy consuming part of the entire three-way seismic isolation device, so that in order to increase the friction force, a layer of spherical sliding plate 84 may be further fixed on the upper portion of the spherical liner plate 83, the spherical sliding plate 84 may be made of an energy consuming damping material, so as to ensure the friction force between the spherical sliding plate 84 and the lower end of the sleeve 2, and the spherical sliding plate 84 may be fixed on the spherical liner plate 83 by gluing or the like, so as to facilitate the replacement of the spherical sliding plate 84. On the other hand, the sleeve 2 may be designed as a hollow structure to reduce the mass of the sleeve 2 itself without affecting its strength. And as mentioned above, the sleeve 2 is supported by the annular arcuate rubber member 3 for keeping a certain clearance between the lower end of the sleeve 2 and the spherical liner 83 in a normal state. Simultaneously for increasing the coincide nature between arch form rubber spare 3 and the sleeve 2, can all set up the contact surface between the two to the arcwall face as shown in fig. 1 to utilize the quality of upper supporting plate 1 and sleeve 2, avoid arch form rubber spare 3 and sleeve 2 to produce the clearance, and then promote the stability that arch form rubber spare 3 supported sleeve 2.

In this embodiment, through 3 suits of arch type rubber spare on sleeve 2, make sleeve 2 and upper supporting plate 1 support by arch type rubber spare 3, utilize arch type rubber spare 3's material toughness, can effectively reduce upper supporting plate 1 vibrations, and carry out relative displacement through 2 lower extremes of sleeve and friction supporting pad 8 and produce the friction power consumption, thereby consume vibrations range and frequency, further reduce the vibrations of upper supporting plate, thereby no matter be horizontal vibrations ripples or vertical vibrations ripples, all can be by arch type rubber spare, the shock insulation is realized to the structure of sleeve and friction supporting pad combination, and through the three-dimensional seismic isolation device structure in this embodiment, make seismic isolation device no longer confine the shock insulation to historical relic itself, also can directly regard as the strutting arrangement of historical relic showcase/exhibition frame, realize three-dimensional seismic isolation with same mode.

According to another embodiment of the present invention, as shown in fig. 1, in order to ensure that the force from the upper supporting plate 1 does not deteriorate and prevent the pressure applied by the cultural relics or the cultural relic exhibition shelf from affecting the shock insulation effect of the device, it is preferable to center the components of the device from top to bottom, that is, the central axes of the upper supporting plate 1, the sleeve 2, the arched rubber member 3, the tray body 4, the rubber disc 5 and the friction supporting pad 8 are all designed to coincide with each other. Meanwhile, in order to prevent the lower part of the arched rubber part 3 from displacing after being pressed, the outer edge of the tray body 4 is provided with an annular retaining edge 41, so that the outer side of the lower part of the arched rubber part 3 can be abutted against the annular retaining edge 41.

Referring to fig. 1 to 4, in practical use, the above preferred embodiment of the present invention is assembled with the components of the apparatus as shown in fig. 1, the relative positions of the components are finely adjusted by the bolts 9 on the upper and

lower plates

6 and 7 and the friction support pad 8, and then the cultural relic or cultural relic tray is directly placed on the support plate 1 to be in the state shown in fig. 3, or the apparatus can be used as the support component of the cultural relic rack/cultural relic cabinet to be placed at the lower part of the cultural relic rack/cultural relic cabinet to be in the state shown in fig. 4 based on the same manner. When an earthquake occurs, the seismic waves are transmitted to the arch-shaped rubber part 3 through the lower bottom plate 7 and the upper bottom plate 6 through the tray body 4, in the process, the vibration caused by the seismic waves is buffered to a certain extent through the toughness of the rubber tray 5, then the vibration is transmitted to the sleeve 2 and the bearing plate 1 through the arch-shaped rubber part 3, the sleeve 2 is completely supported through the arch-shaped rubber part 3, the vertical vibration caused by the vertical seismic waves is further reduced through the toughness of the arch-shaped rubber part 3, meanwhile, the spherical sliding plate 84 at the lower end of the sleeve on the friction supporting pad 8 is subjected to reciprocating friction under the vibration effect, the energy caused by the seismic waves is consumed through friction, and therefore the vertical seismic waves are relieved and blocked, the blocking of the seismic waves from XYZ three directions is realized, and the stability of the bearing objects on the bearing plate 1 during the earthquake is further ensured.

Based on the above embodiment, the invention also has the following characteristics compared with the similar vibration isolation device:

firstly, the device can isolate the cultural relics and the cultural relic storage cabinet in three directions in the horizontal, two-way and vertical directions.

Secondly, the main body design of the hemispherical circular arc shown in the figure 1 can ensure that the horizontal all directions have equal rigidity, and the vibration type of the device is reduced.

And thirdly, by utilizing the property of the rubber deformation resettable material, a resetting part is not required to be arranged in the device, and the effect of prolonging the structural period is achieved by meeting the requirement of the deformation of the device in the horizontal direction.

Fourthly, in the device, the friction support pad 8 and the arch-shaped rubber piece 3 have vertical shock absorption effect. The radian and the material characteristics of the arch-shaped rubber piece 3 ensure that the arch-shaped rubber piece 3 is just attached to the friction support pad 8 while the upper load is transmitted to the metal tray body 4. Frictional energy dissipation is generated by displacement of the hollow steel sleeve 2. The friction support pad 8 can be matched with a certain number of devices through adjusting the height through bolts, so that cultural relics or showcases with different qualities can be met, energy consumption conditions and shock insulation requirements can be met simultaneously, and loss of friction materials of the spherical sliding plate 84 can be replaced. After the three-dimensional shock isolation device for cultural relics and display cabinets is used for producing the die, the three-dimensional shock isolation device is convenient to assemble, and each part can be independently produced.

In addition to the foregoing, it should be noted that reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally throughout this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. The utility model provides a three-dimensional shock isolation device that can be used to historical relic and show cupboard which characterized in that: the device comprises an upper supporting plate (1), wherein the upper supporting plate (1) is fixed on a sleeve (2), an arch-shaped rubber part (3) is sleeved outside the sleeve (2), the lower part of the arch-shaped rubber part (3) is arranged in a tray body (4), the tray body (4) is installed on a rubber disc (5), the rubber disc (5) is installed on an upper bottom plate (6), and the upper bottom plate (6) is installed on a lower bottom plate (7) through an adjustable part;

a friction supporting pad (8) is arranged below the sleeve (2), and the lower part of the friction supporting pad (8) is flush with the tray body (4) and the rubber disc (5);

friction support pad (8) are including the plate body (81), plate body (81) upper portion is fixed with the block body (82) that fills up, the upper portion of the block body (82) that fills up is equipped with sphere welt (83), the lower extreme of sleeve (2) with sphere welt (83) are identical, the detachable installation of the plate body that fills up (81) is on upper plate (6).

2. The three-way seismic isolation device for cultural relics and display cabinets as claimed in claim 1, wherein: and a spherical sliding plate (84) is arranged on the contact surface of the upper part of the spherical lining plate (83) and the lower end of the sleeve (2).

3. The three-way seismic isolation device for cultural relics and display cabinets as claimed in claim 1 or 2, wherein: the sleeve (2) is of a hollow structure, and the sleeve (2) is supported by the arch-shaped rubber part (3) and is used for keeping a gap between the lower end of the sleeve (2) and the spherical lining plate (83) in a normal state.

4. The three-way seismic isolation device for cultural relics and display cabinets as claimed in claim 3, wherein: the contact surface of the upper part of the arch-shaped rubber part (3) and the upper part of the sleeve (2) is an arc surface.

5. The three-way seismic isolation device for cultural relics and display cabinets as claimed in claim 1, wherein: the middle axes of the upper supporting plate (1), the sleeve (2), the arch-shaped rubber piece (3), the tray body (4), the rubber disc (5) and the friction supporting pad (8) are all overlapped with each other.

6. The three-way seismic isolation device for cultural relics and display cabinets as claimed in claim 1, wherein: the outer border of tray body (4) is equipped with annular fender border (41), the outside of arch form rubber spare (3) lower part with annular fender border (41) are inconsistent.

7. The three-way seismic isolation device for cultural relics and display cabinets as claimed in claim 1, wherein: the cushion plate body (81) is installed on the upper base plate (6) through bolts (9), and the edges of the upper base plate (6) and the cushion plate body (81) are provided with mutually matched step surfaces.

8. The three-way seismic isolation device for cultural relics and display cabinets as claimed in claim 1 or 7, wherein: the upper bottom plate (6) is also mounted on the lower bottom plate (7) through bolts (9).

9. The three-way seismic isolation device for cultural relics and display cabinets as claimed in claim 1, wherein: the material of the gasket body (82) is rubber, the tray body (4) all is the annular with rubber dish (5), just keep the clearance between the annular interior border of gasket body (82) and tray body (4), rubber dish (5).