Quakeproof protection device for cultural relics

Abstract

The invention discloses a shockproof protection device for cultural relics. The shockproof protection device comprises an abutting device and a circular opening and closing mechanism. The abutting device is used for making contact with and fixing cultural relics. The abutting device is composed of a plurality of unit abutting structures, and each unit abutting structure comprises an abutting part, a supporting rod and a sliding piece arranged on the supporting rod. The abutting part is in linkage connection with the supporting rod so as to be pushed by the supporting rod to abut against or be away from the cultural relics. The circular opening and closing mechanism adaptively adjusts the accommodating size of the cultural relics through radial telescopic motion; the circular opening and closing mechanism comprises a first limiting piece, a plurality of arc-shaped limiting grooves are formed in the first limiting piece, the arc-shaped limiting grooves are distributed at intervals in the circumferential direction of the first limiting piece, and the arc-shaped limiting grooves extend from inside to outside in the circumferential direction of the first limiting piece and in the radial direction of the first limiting piece. The invention aims to provide the shockproof protection device for the cultural relics. The shockproof protection device effectively solves the problem that a traditional cultural relic protection device is insufficient in adaptability.

Description

Technical Field

[0001] The invention relates to the technical field of shockproof protection devices for cultural relics, and in particular to a shockproof protection device for cultural relics. Background Art

[0002] As museums and archaeology pay more and more attention to the protection of cultural relics, earthquake protection devices have become key equipment to ensure the safety of fragile cultural relics during transportation, exhibition and storage. However, the existing cultural relic earthquake protection devices generally have the problem of insufficient earthquake resistance. Traditional buffer structures mostly use a single spring or fixed support, which is difficult to effectively absorb and disperse multi-dimensional vibration energy, resulting in cultural relics still being easily damaged under sudden vibration or impact.

[0003] In addition, the existing devices have poor adaptive adjustment capabilities and cannot flexibly adapt to cultural relics of different sizes and shapes. They often require repeated manual adjustments of the fixed structure, which is not only cumbersome to operate, but may also cause secondary damage to the surface of the cultural relics due to uneven contact pressure. Therefore, there is an urgent need for a cultural relic anti-seismic protection device with adaptive adjustment capabilities to solve the core defect of insufficient adaptability in the existing technology. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a cultural relic shockproof protection device, which effectively solves the problem of insufficient adaptability of traditional cultural relic protection devices.

[0005] The purpose of the present invention is achieved by the following technical solutions:

[0006] A cultural relic earthquake protection device, comprising:

[0007] The abutment device is used to contact and fix the cultural relic; the abutment device is composed of a plurality of unit abutment structures, each of which includes an abutment portion, a support rod and a sliding member arranged on the support rod; the abutment portion is linked to the support rod so as to be pushed by the support rod to abut against or away from the cultural relic;

[0008] A circular opening and closing mechanism, which adaptively adjusts the accommodation size of cultural relics through radial telescopic movement; the circular opening and closing mechanism includes a first limiting member, on which a plurality of arc-shaped limiting grooves are provided, the plurality of arc-shaped limiting grooves are distributed at intervals around the circumference of the first limiting member, and the arc-shaped limiting grooves extend from the inside to the outside along the circumference of the first limiting member and along the radial direction of the first limiting member; each arc-shaped limiting groove is slidably matched with a sliding member of one of the unit abutment structures.

[0009] Preferably, the circular opening and closing mechanism further comprises a second limiting member, the second limiting member is provided with a guide cavity for movement of the support rod, and the guide cavity extends along the length direction of the support rod.

[0010] Preferably, the circular opening and closing mechanism is a gear-driven telescopic mechanism; the gear-driven telescopic mechanism includes a driving gear and a driven gear that mesh with each other; the driven gear is connected to the first limiting member to drive the first limiting member to rotate.

[0011] Preferably, the unit abutting structure includes a plurality of hierarchical buffer devices; each hierarchical buffer device includes at least two buffer layers, and adjacent two buffer layers belonging to the same hierarchical buffer device abut against each other in sequence along the radial direction of the first limiting member.

[0012] Preferably, the two buffer layers are an inner buffer unit and an outer buffer unit respectively; the inner buffer unit includes a spiral spring and an inner core rod; the outer buffer unit includes a disc spring and an outer sleeve; the inner core rod is nested inside the outer sleeve; the inner core rod, the spiral spring and the disc spring abut against each other in sequence along the buffer direction.

[0013] Preferably, the inner core rod is sleeved outside the spiral spring; the outer sleeve is sleeved outside the disc spring.

[0014] Preferably, the inner buffer unit further includes a first guiding block, and the first guiding block is arranged between the spiral spring and the inner core rod; the inner core rod, the first guiding block and the end of the spiral spring abut against each other in sequence, and the first guiding block is movably sleeved on the inner wall of the outer sleeve; the outer buffer unit includes a second guiding block, and the two opposite ends of the second guiding block abut against the spiral spring and the disc spring respectively, and the second guiding block is movably sleeved on the inner wall of the outer sleeve.

[0015] Preferably, the inner wall of the outer sleeve is provided with an axially extending guiding groove; the first guiding block is provided with a first protrusion that slidably cooperates with the guiding groove; the second guiding block is provided with a second protrusion that slidably cooperates with the guiding groove.

[0016] Preferably, the inner core rod is provided with a silica gel contact head, and the silica gel contact head is provided with an anti-slip texture structure.

[0017] Preferably, the cultural relic shock-proof protection device further includes a polygonal outer shell, and the number of sides of the polygonal outer shell is adapted to the number of unit abutting structures; a handle is provided on the outer side of the polygonal outer shell, and the handle is drivingly connected to the driving gear.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. Intelligent circular opening and closing mechanism design: The first limiting member adopts an arc-shaped limiting groove with an involute shape, which forms a dynamic cooperation with the sliding members of each unit abutting structure. The abutting part is connected to the support rod in a linkage manner, so as to be pushed by the support rod to abut against or move away from the cultural relic, and make each unit abutting structure approach and clamp the cultural relic more smoothly. The arc-shaped limiting groove ensures that each support rod moves along a radial track, realizing uniform adjustment radiating from the center to the outside.

[0020] 2. Hierarchical buffer array design: The inner buffer unit consists of a helical spring and an inner core rod, responsible for absorbing high-frequency micro-vibrations; the outer buffer unit contains a disc spring and an outer casing, dealing with strong impacts. The two-level buffer layers are connected by a guiding structure to ensure the accuracy of force transmission. When vibrations occur, the two-level springs can work together according to the magnitude of external vibrations. This design effectively improves the buffer efficiency, and the array layout significantly enhances the flexibility and accuracy of cultural relic adaptation.

[0021] 3. Composite design of guiding groove and guiding block: Through the abutting structure of the first guiding block against the end parts of the inner core rod and the helical spring, and in cooperation with the constraint of the guiding groove on the first protrusion, the inner buffer unit forms an accurate axial motion chain, ensuring the linear compression of the helical spring; the second guiding block abuts against the disc spring and the helical spring bidirectionally, and under the sliding fit of the guiding groove and the second protrusion, realizes the multi-level force transmission of the outer buffer unit, making the outer buffer unit form an accurate axial motion chain; this design avoids the problem of motion misalignment of multi-level buffer units under complex loads. Brief Description of the Drawings

[0022] Figure 1 is a schematic structural diagram of an anti-seismic protection device for cultural relics of the present invention;

[0023] Figure 2 is Figure 1 a bottom view of an anti-seismic protection device for cultural relics shown in the figure;

[0024] Figure 3 is Figure 1 a cross-sectional view of the hierarchical buffer device of an anti-seismic protection device for cultural relics shown in the figure.

[0025] In the figure: 1. Abutting device; 2. Unit abutting structure; 3. Abutting part; 4. Support rod; 5. Sliding part; 6. Hierarchical buffer device; 7. Inner buffer unit; 711. Helical spring; 712. Inner core rod; 713. First guiding block; 714. Silicone contact head; 8. Outer buffer unit; 811. Disc spring; 812. Outer casing; 813. Second guiding block; 814. Guiding groove; 9. Circular opening and closing mechanism; 10. First limiting part; 11. Arc-shaped limiting groove; 12. Second limiting part; 13. Guiding cavity; 14. Driving gear; 15. Driven gear; 16. Polygonal outer shell; 17. Handle. Detailed Embodiments

[0026] Next, in combination with the drawings and specific embodiments, the present invention will be further described. It should be noted that on the premise of no conflict, the following described embodiments or technical features can be combined arbitrarily to form new embodiments.

[0027] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this invention belongs. The terms used in the specification of the invention herein are only for the purpose of describing specific embodiments and are not intended to limit the invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0029] See Figure 1 , which shows the specific implementation of a preferred embodiment of the present invention.

[0030] An anti-seismic protection device for cultural relics, comprising: an abutting device 1 and a circular opening and closing mechanism 9; the abutting device 1 is used to contact and fix the cultural relic; the abutting device 1 is composed of a plurality of unit abutting structures 2, and each unit abutting structure 2 includes an abutting part 3, a support rod 4 and a sliding member 5 arranged on the support rod 4; the abutting part 3 is connected to the support rod 4 in a linkage manner so as to be pushed by the support rod 4 to abut against or move away from the cultural relic; the circular opening and closing mechanism 9 adaptively adjusts the accommodation size of the cultural relic through radial telescopic movement; the circular opening and closing mechanism 9 includes a first limiting member 10, and a plurality of arc-shaped limiting grooves 11 are arranged on the first limiting member 10, and the plurality of arc-shaped limiting grooves 11 are circumferentially and spacedly distributed around the circumference of the first limiting member 10, and the arc-shaped limiting grooves 11 extend from the inside to the outside along the circumference and the radius of the first limiting member 10; each arc-shaped limiting groove 11 is slidably matched with the sliding member 5 of one of the unit abutting structures 2. This anti-seismic protection device for cultural relics adopts a modular design and is mainly composed of an abutting device 1 and a circular opening and closing mechanism 9. The abutting device 1 includes a plurality of unit abutting structures 2, and each unit abutting structure 2 includes an abutting part 3, a support rod 4 and a sliding member 5. The abutting part 3 is wrapped with a flexible material to avoid damaging the surface of the cultural relic, and is connected to the support rod 4 in a linkage manner through hinge connection, fixed connection or elastic connection; a sliding member 5 (such as a roller or a slider) is arranged at the end of the support rod 4, and the sliding member 5 is matched with the arc-shaped limiting groove 11 of the circular opening and closing mechanism 9. The core of the circular opening and closing mechanism 9 is the first limiting member 10, and a plurality of arc-shaped limiting grooves 11 are circumferentially distributed on it, and the arc-shaped limiting grooves 11 extend from the inside to the outside along the radius to form an involute layout. In addition, an elastic reset element (such as a spring or a driving motor) can be added to the device to realize an automatic adjustment function, and the overall structure is compact and suitable for cultural relics of different sizes and shapes.

[0031] When the cultural relic is placed into the anti-vibration protection device for cultural relics, the circular opening and closing mechanism 9 drives the rotation of the first limiting member 10 by means of gear transmission or motor drive, etc., so that the internal arc-shaped limiting groove 11 rotates synchronously. Due to the radially involute design of the arc-shaped limiting groove 11, its inner wall contacts the sliding member 5 and applies a sliding force, pushing the sliding member 5 to move along the extending direction of the arc-shaped limiting groove 11. This movement is converted into a radial displacement through the support rod 4 and may be accompanied by a small rotation, thereby driving each abutting portion 3 to move closer to or expand outward from the center synchronously until all the abutting portions 3 uniformly fit the surface of the cultural relic, forming an adaptive wrapping. When external vibration occurs, the flexible material of the abutting portion 3 can effectively absorb the vibration energy, and the dynamic cooperation between the arc-shaped limiting groove 11 and the sliding member 5 forms a mechanical constraint to inhibit the displacement of the cultural relic. The user can achieve precise adjustment through manual rotation or motor control to ensure that cultural relics of different sizes and shapes can obtain stable protection.

[0032] Obviously, through the design of the circular opening and closing mechanism 9, the first limiting member 10 of the anti-vibration protection device for cultural relics adopts an arc-shaped limiting groove 11 with an involute shape, forms a dynamic cooperation with the sliding member 5 of each unit abutting structure 2, and the abutting portion 3 is connected to the support rod 4 in a linkage manner to be pushed by the support rod 4 to abut against or move away from the cultural relic, and enables each unit abutting structure 2 to approach and clamp the cultural relic more smoothly. The arc-shaped limiting groove 11 ensures that each support rod 4 moves along a radial trajectory, realizing uniform adjustment radiating from the center to the outside.

[0033] In addition, the design of the arc-shaped limiting groove 11 can adopt two optimization schemes to adapt to different adaptation requirements of cultural relics: Preferably, an equidistant involute configuration is adopted to enable each unit abutting structure 2 to achieve synchronous and equal-displacement expansion, ensuring uniform coating of the cultural relic; a non-equidistant variable curvature configuration can also be adopted. Through the design of the differential arc-shaped limiting groove 11, each unit abutting structure 2 generates an asymmetric displacement, which is generally applicable to special-shaped cultural relics with irregular shapes and requiring customized protection.

[0034] In specific implementation, first place the cultural relic at the center of the device. Start the motor or manually rotate the driving gear to drive the first limiting member 10 to rotate, causing the arc-shaped limiting groove 11 to rotate synchronously. Since the limiting groove adopts a radially involute layout, the sliding member 5 (such as a roller or a slider) slides within the arc-shaped limiting groove 11, pushing the support rod 4 to move radially, and may be accompanied by a slight self-rotation at the same time, causing each abutting portion 3 to contract towards the center or expand outwards synchronously. The abutting portion 3 is wrapped with a flexible material such as silica gel or memory foam to ensure close fitting with the surface of the cultural relic without damaging the cultural relic. When all the abutting portions 3 uniformly contact the cultural relic, the motor can automatically stop (or be manually locked) to complete the adaptive fixation. When external vibration occurs, the flexible material of the abutting portion 3 absorbs the impact energy, and the mechanical cooperation between the limiting groove and the sliding member 5 provides dynamic restraint to prevent the displacement of the cultural relic. If adjustment is required, the motor can be controlled to reverse or the limiting member can be finely adjusted manually to make the abutting portion 3 re-adapt to the cultural relic. In addition, the device can be integrated with a pressure sensor to monitor the abutting force in real time to ensure stable protection effect. This implementation method is applicable to cultural relics of different sizes and shapes, with simple operation and reliable protection.

[0035] The circular opening and closing mechanism 9 further includes a second limiting member 12, and the second limiting member 12 is provided with a guiding cavity 13 for the movement of the support rod 4, and the guiding cavity 13 extends along the length direction of the support rod 4. Through the collaborative cooperation of the innovative circular opening and closing mechanism 9 and the multiple unit abutting structures 2, the device effectively solves the problem of insufficient adaptability of traditional cultural relic protection devices. Among them, the design of the guiding cavity 13 of the second limiting member 12 provides an accurate linear movement track for the support rod 4, enabling each unit abutting structure 2 to smoothly expand and contract along a fixed track, ensuring that cultural relics of different sizes and shapes can obtain a tight and uniform wrapping and fixation. This structure breaks through the defects of limited adjustment range and poor adaptability of traditional devices.

[0036] The device adopts a double-layer limiting structure design: the first limiting member 10 controls the radial movement track of the sliding member 5 through the circumferentially distributed arc-shaped limiting groove 11, while the second limiting member 12 is provided with a guiding cavity 13 matching the support rod 4, and the cavity extends along the axial direction of the support rod 4 to form a guiding channel. The support rod 4 penetrates through the guiding cavity 13, with its front end connected to the abutting portion 3 and the rear end fixed to the sliding member 5. This double-track restraint mechanism (the arc-shaped limiting groove 11 combined with the guiding cavity 13) not only ensures the linear movement accuracy of the support rod 4 but also avoids deviation or jamming during the adjustment process. The overall structure is compact and highly reliable.

[0037] When the circular opening and closing mechanism 9 rotates, the arc-shaped limiting groove 11 of the first limiting member 10 pushes the sliding member 5 to move. At this time, the support rod 4 slides linearly in the guiding cavity 13 of the second limiting member 12, converting the rotational motion into a pure radial displacement. The guiding cavity 13 effectively inhibits the swinging or twisting of the support rod 4, ensuring that all the abutting parts 3 synchronously move towards the center or expand outwards until the flexible abutting parts 3 evenly fit the surface of the cultural relic. When vibration occurs, the cooperation between the guiding cavity 13 and the support rod 4 further enhances the structural stability and prevents the cultural relic from being damaged due to inertial displacement.

[0038] In practical applications, first place the cultural relic at the center of the device, and rotate the first limiting member 10 manually or by a motor. The sliding member 5 is guided by the arc-shaped limiting groove 11 to generate displacement, driving the support rod 4 to move linearly along the guiding cavity 13 of the second limiting member 12, so that the abutting parts 3 adaptively wrap the cultural relic. The size of the guiding cavity 13 has a clearance fit with the support rod 4 to ensure smooth movement without shaking. After the adjustment is completed, the position of the limiting member can be fixed through the locking mechanism. This design can adapt to various cultural relics with different diameters without complex debugging, significantly improving the protection efficiency.

[0039] The circular opening and closing mechanism 9 is a gear-driven telescopic mechanism; the gear-driven telescopic mechanism includes a driving gear 14 and a driven gear 15 that mesh with each other; the driven gear 15 is connected to the first limiting member 10 to drive the first limiting member 10 to rotate. Through the innovative gear-driven telescopic mechanism, the device realizes the precise and controllable movement of the circular opening and closing mechanism 9. The gear meshing transmission method ensures the synchronism and stability of the rotation of the first limiting member 10, enabling each unit of the abutting structure 2 to be accurately adjusted according to the predetermined trajectory, thereby providing just the right wrapping force for cultural relics of different sizes and avoiding the risk of damage to cultural relics caused by inaccurate adjustment of traditional devices.

[0040] The gear-driven telescopic mechanism consists of a driving gear 14 and a driven gear 15 that form a meshing system. The driving gear 14 is connected to a drive shaft and can be driven by a manual knob or a motor; the driven gear 15 is coaxially fixed to the first limiting member 10 and directly transmits the rotational motion to the limiting member. The gears are designed with helical teeth to improve the meshing smoothness, and the module is optimized to ensure the transmission accuracy. The entire gear set is installed in a sealed cavity to avoid the influence of dust on the meshing effect. At the same time, a flange connection is used between the first limiting member 10 and the gear set to ensure the reliability of power transmission.

[0041] When the driving gear 14 rotates, it drives the driven gear 15 to rotate synchronously through gear meshing, and then drives the first limiting member 10 to rotate precisely. The gear transmission ratio is carefully designed so that the operator can achieve smooth rotation of the limiting member with a relatively small input torque. The rotational motion of the first limiting member 10 is converted into the radial displacement of the sliding member 5 through the arc-shaped limiting groove 11, and finally drives the respective abutting portions 3 to move coordinately. The self-locking characteristic of gear transmission can automatically maintain the current position when the operation stops, preventing accidental loosening.

[0042] During implementation, the operator rotates the driving handle (or starts the motor) of the driving gear 14, and the power is transmitted through the gear set to make the first limiting member 10 rotate. According to the size of the cultural relic, usually rotating a certain angle can complete the adjustment process from full expansion to tight wrapping. After the adjustment is in place, the natural self-locking characteristic of gear meshing can maintain a fixed state without an additional locking device. This design enables a single person to complete precise adjustment, greatly improving the efficiency and quality of cultural relic protection operations.

[0043] See Figure 3 , the unit abutting structure 2 includes a plurality of hierarchical buffer devices 6; each hierarchical buffer device 6 includes at least two buffer layers, and the adjacent two buffer layers belonging to the same hierarchical buffer device 6 abut against each other in sequence along the radial direction of the first limiting member 10. This device solves the problems of single shock absorption performance and inability to adapt to different intensities of vibration of traditional cultural relic protection devices through the innovative design of the hierarchical buffer device 6. The progressive structure of the multi-layer buffer layer can automatically trigger different levels of buffer mechanisms according to the vibration intensity, providing hierarchical protection for cultural relics, and effectively avoiding the defects of insufficient buffering of traditional devices during strong earthquakes or excessive restraint during weak earthquakes.

[0044] Each unit abutting structure 2 integrates a multi-stage buffer device, adopting a superposition design of at least two buffer layers. The buffer layers are arranged in sequence along the radial direction. The inner layer uses materials with a high elastic modulus (such as soft spiral springs 711 or silica gel) to absorb high-frequency micro-vibrations, and the outer layer uses materials with a low elastic modulus (such as hard spiral springs 711 or disc springs 811) to buffer strong vibrations. The buffer layers are connected through a limiting structure to ensure that each layer can work independently and cooperate with each other. The overall structure is compact, and the thickness is optimized to achieve the maximum buffer efficiency within a limited space.

[0045] According to different vibration intensities, the buffer device will activate corresponding protection mechanisms: slight vibrations are only absorbed by the inner buffer material; during strong vibrations, the inner buffer material and the outer buffer material achieve the synergistic effect of multi-layer buffering. This progressive buffering method can not only effectively dissipate the vibration energy of different intensities, but also avoid the premature failure of a single buffer layer. Each level of buffer layer ensures a smooth transition of energy absorption through a carefully designed stiffness gradient.

[0046] The two-layer buffer layer is respectively an inner buffer unit 7 and an outer buffer unit 8; the inner buffer unit 7 includes a helical spring 711 and an inner core rod 712; the outer buffer unit 8 includes a disc spring 811 and an outer sleeve 812; the inner core rod 712 is nested inside the outer sleeve 812; the inner core rod 712, the helical spring 711 and the disc spring 811 are sequentially abutted along the buffer direction. Through the innovative double-layer composite buffer structure design, this device solves the problems of inaccurate response and insufficient energy absorption of traditional cultural relic protection devices when dealing with vibrations of different intensities. The collaborative work of the helical spring 711 and the disc spring 811 realizes the hierarchical absorption of vibration energy, and the nested structure of the inner core rod 712 and the outer sleeve 812 ensures the stability of the buffering process, enabling the cultural relic to obtain flexible protection and avoid excessive displacement, significantly improving the accuracy and reliability of protection.

[0047] The hierarchical buffer device 6 adopts a mechanical structure design: the inner buffer unit 7 is composed of a helical spring 711 and an inner core rod 712, and the helical spring 711 is sleeved around or inside the inner wall of the core rod; the outer buffer unit 8 includes a disc spring 811 and a sleeve structure, and the disc spring 811 is arranged in multiple superimposed layers. The disc spring 811 can be sleeved around or on the inner arm of the outer sleeve 812. The inner core rod 712 is precisely nested inside the outer sleeve 812 to form a coaxial double-buffer system. The helical spring 711 is responsible for elastic buffering in the initial stage, and the disc spring 811 provides progressive damping. The sizes of each component are calculated to ensure smooth movement without interference.

[0048] When vibration occurs, the inner helical spring 711 first compresses to absorb the initial impact energy; when the impact force reaches the threshold, the inner core rod 712 begins to push the disc spring 811 to deform, entering the second buffer stage. The linear characteristic of the helical spring 711 and the non-linear characteristic of the disc spring 811 complement each other, ensuring a smooth buffer transition from slight vibration to strong impact. The coaxial design of the double-layer structure enables the buffer force to be transmitted along the axial direction, avoiding damage to cultural relics caused by lateral offset.

[0049] It can be understood that the buffer device adopts a layered buffer array design, that is, the inner buffer unit 7 is composed of a helical spring 711 and an inner core rod 712, which is responsible for absorbing high-frequency micro-vibrations; the outer buffer unit 8 includes a disc spring 811 and an outer sleeve 812, which responds to strong impacts. The two-stage buffer layers are connected by a guiding structure to ensure the accuracy of force transmission. When vibration occurs, the two-stage springs can work together according to the magnitude of the external vibration.

[0050] During implementation, the helical spring 711 is pre-compressively installed on the inner core rod 712, and the whole is installed in the outer sleeve 812. The pre-tightening force of the disc spring 811 group is set within a certain safe range to ensure connection with the buffering threshold of the helical spring 711. The post-assembly test shows that: under a small load, the helical spring 711 mainly works; under a medium or large load, the disc spring 811 starts to participate; when the load is large, the double springs buffer in cooperation. This structure can automatically adapt to vibrations of different intensities without external adjustment, effectively improving the protection performance.

[0051] The inner core rod 712 is sleeved outside the helical spring 711; the outer sleeve 812 is sleeved outside the disc spring 811. Through the innovative design of the internal and external nested buffering structure, this device effectively solves the problems of easy deflection and low energy absorption efficiency of the buffering components of traditional cultural relic protection devices. The layout of the helical spring 711 outside the inner core rod 712 and the disc spring 811 inside the outer sleeve 812 not only ensures the coaxial accuracy of the movement of each buffering component, but also realizes double buffering protection in a compact space, enabling the cultural relic to obtain more stable and reliable multi-stage protection in a vibrating environment.

[0052] This buffering device adopts an internal and external double sleeve nested structure: the inner core rod 712 serves as the installation reference axis of the helical spring 711, and the helical spring 711 is firmly sleeved on the inner surface of the inner core rod 712; the outer sleeve 812 serves as the constraint housing of the disc spring 811 group, and there is an appropriate gap between its inner diameter and the outer diameter of the disc spring 811 group to facilitate the pre-installation positioning of the spring group. During assembly, first pre-install the disc spring 811 group into the inner cavity of the sleeve, and then insert the core rod assembly with the helical spring 711 press-fitted axially into the sleeve, so that the limiting flange at the end of the core rod forms an accurate fit with the disc spring 811 group. After completion of the assembly, the helical spring 711 is located in the annular space between the core rod and the sleeve, and the disc spring 811 group is constrained in the inner cavity of the sleeve, forming a compact double-layer buffering system.

[0053] When subjected to a vibration shock, the inner helical spring 711 first compresses and deforms axially along the core rod to absorb the initial kinetic energy; as the impact force increases, the core rod limiting flange contacts and compresses the disc spring 811 group, entering the second buffering stage. The cooperation between the core rod and the sleeve ensures that the impact force is transmitted axially. The outer sleeve installation of the helical spring 711 effectively prevents the spring from buckling, and the internal layout of the disc spring 811 optimizes the space utilization rate. This design makes the buffering process smoother and more controllable.

[0054] The buffer device adopts an inside-out sequential assembly method: First, the spiral spring 711 is press-fitted into the inner surface of the inner core rod 712 to ensure a tight fit between the spring and the core rod; then, the set of disc springs 811 is pre-loaded into the inner cavity of the outer sleeve 812; finally, the core rod assembly with the spiral spring 711 is integrally inserted into the sleeve already installed with the disc spring 811, so that the limit flange at the end of the core rod is aligned with the set of disc springs 811. Through this three-step assembly process, a double-layer nested buffer structure composed of the inner core rod 712 and the spiral spring 711, the outer sleeve 812 and the set of disc springs 811 is finally formed. Installing the components in this order not only ensures the assembly accuracy but also guarantees the integrity and stability of the buffer system.

[0055] The inner buffer unit 7 further includes a first guide block 713, which is arranged between the spiral spring 711 and the inner core rod 712; the inner core rod 712, the first guide block 713, and the end of the spiral spring 711 are sequentially abutted, and the first guide block 713 is movably sleeved on the inner wall of the outer sleeve 812; the outer buffer unit 8 includes a second guide block 813, and the opposite ends of the second guide block 813 are respectively abutted against the spiral spring 711 and the disc spring 811, and the second guide block 813 is movably sleeved on the inner wall of the outer sleeve 812. Through the innovative double-guide-block buffer structure design, the device effectively solves the problems of non-coaxial movement of components and easy eccentric wear during the buffering process of traditional cultural relic protection devices. The introduction of the first guide block 713 and the second guide block 813 not only ensures the precise centering of the inner core rod 712 and the spiral spring 711 but also realizes the smooth movement of the components inside the outer sleeve 812, making the buffering process more stable and reliable, and significantly improving the adaptability of the device to vibrations of different intensities.

[0056] The buffer device adopts a guiding structure: In the inner buffer unit 7, the first guide block 713 is sleeved on the inner core rod 712, located between the end of the spiral spring 711 and the core rod, and its outer diameter is matched with the inner wall of the outer sleeve 812; in the outer buffer unit 8, the second guide block 813 is arranged between the spiral spring 711 and the disc spring 811 and also maintains a sliding fit with the inner wall of the outer sleeve 812. Both guide blocks are made of materials with low friction coefficients, which not only ensure smooth movement but also avoid wear. This double-guide-block design forms an inner and outer two-stage movement guiding system.

[0057] It can be understood that through the combined design of the guiding groove 814 and the guiding block, both ends of the first guiding block 713 are respectively in contact with the end parts of the inner core rod 712 and the helical spring 711. With the cooperation of the guiding groove 814 to constrain the first protrusion, the inner buffer unit 7 forms an accurate axial motion chain, ensuring the linear compression of the helical spring 711. The second guiding block 813 is in contact with the disc spring 811 and the helical spring 711 in a two-way manner. Under the sliding fit of the guiding groove 814 and the second protrusion, the multi-stage force transmission of the outer buffer unit 8 is realized, and the outer buffer unit 8 forms an accurate axial motion chain. This design avoids the problem of motion misalignment of the multi-stage buffer unit under complex loads.

[0058] During specific assembly, first, the first guiding block 713 is sleeved on the inner core rod 712, and then the helical spring 711 is installed. Then, the second guiding block 813 is placed at the other end of the helical spring 711. Finally, the disc spring 811 group and the outer sleeve 812 are assembled in sequence. The fitting clearance between the two guiding blocks and the outer sleeve 812 needs to be controlled within a reasonable range, which should not only ensure smooth movement but also avoid excessive clearance causing skew. After installation, the entire buffer system forms a multi-stage guiding structure to ensure that each component remains centered during movement.

[0059] The inner wall of the outer sleeve 812 is provided with an axially extending guiding groove 814; the first guiding block 713 is provided with a first protrusion that is in sliding fit with the guiding groove 814; the second guiding block 813 is provided with a second protrusion that is in sliding fit with the guiding groove 814. Through the innovative matching structure of the guiding groove 814 and the protrusion, this device solves the problem that components of traditional buffer devices are prone to rotational misalignment in a complex vibration environment. The matching of the guiding groove 814 and the protrusion provides a strict axial motion trajectory for the buffer components, effectively reducing the circumferential rotation during movement, ensuring that the buffer force is transmitted along a predetermined direction, and significantly improving the stability and reliability of the device under variable vibration conditions.

[0060] Several axially guiding grooves 814 are machined on the inner wall of the outer sleeve 812, and the guiding grooves 814 run through the entire length of the sleeve; the first guiding block 713 and the second guiding block 813 are respectively provided with protrusion structures that match the guiding grooves 814. The guiding groove 814 adopts a dovetail groove or T-shaped groove design, and the protrusion shape matches it to form an anti-rotation sliding pair. While maintaining the axial movement freedom to a certain extent, this structure restricts the circumferential rotation of the guiding block, ensuring that each buffer component moves along the designed trajectory.

[0061] When the buffer system is working, the guide block protrusion slides strictly along the sleeve guide groove 814, forcing all moving parts to move linearly along the radial direction of the first limiting member 10. The first guide block 713 drives the inner buffer assembly to compress along a fixed trajectory, and the second guide block 813 ensures the precise transmission of the outer buffer force. The clearance between the guide groove 814 and the protrusion ensures smooth movement without wobbling, avoiding the common torsion and eccentric loading phenomena in the traditional structure during the entire buffering process.

[0062] A silica gel contact head 714 is provided on the inner core rod 712, and an anti-slip texture structure is provided on the silica gel contact head 714. By setting the silica gel contact head 714 with anti-slip texture at the end of the inner core rod 712, the device effectively solves the problems of easy slipping and local stress concentration on the contact surface between the traditional buffer device and the cultural relic.

[0063] The silica gel contact head 714 is fixed at the end of the inner core rod 712 by a molding process, and its material is selected as silica gel with high elasticity and aging resistance. The contact surface is designed with radial or grid-shaped anti-slip textures, and the texture depth and spacing are optimized to provide the best friction effect. The silica gel contact head 714 and the core rod adopt an embedded connection structure to ensure that it will not fall off during repeated buffering processes. The shape of the contact head is an arc surface to increase the contact area with the cultural relic.

[0064] When the device is working, the silica gel contact head 714 first contacts the surface of the cultural relic, and its flexible characteristics can adapt to the surfaces of cultural relics with different shapes. The anti-slip textures produce microscopic deformations under pressure, which not only increases the effective contact area but also forms multiple anti-slip barriers through the edges of the textures. When vibration occurs, the elastic deformation of the silica gel material absorbs the impact energy, and at the same time, the friction force provided by the anti-slip textures effectively inhibits the displacement of the cultural relic, achieving dynamic and stable protection.

[0065] See Figure 2 As shown in the figure, the cultural relic shock protection device further includes a polygonal outer shell 16, and the number of sides of the polygonal outer shell 16 is adapted to the number of unit abutting structures 2; a handle 17 is provided on the outer side of the polygonal outer shell 16, and the handle 17 is drivingly connected to the driving gear 14. Through the innovative integrated design of the polygonal outer shell 16 and the handle 17, the device solves the problems of inconvenient operation and poor structural stability of the traditional cultural relic protection device. The number of sides of the polygonal outer shell 16 is precisely matched with the number of unit abutting structures 2 to ensure the uniform distribution of each buffer assembly; the direct connection between the handle 17 and the driving mechanism enables the adjustment operation to be completed with one hand.

[0066] When the handle 17 is rotated, the driving force is directly transmitted to the driving gear 14 through the transmission shaft, driving the driven gear 15 and the first limiting member 10 to rotate. The polygonal housing 16 provides a stable installation foundation for each unit abutting structure 2, ensuring the synchronous movement of all abutting portions 3. The rigid structure of the housing effectively disperses the vibration energy and prevents local stress concentration. The anti-slip design of the handle 17 ensures stable operation even in emergency situations, enabling rapid adjustment.

[0067] The device housing adopts a regular polygonal structure corresponding to the number of unit abutting structures 2. For example, six unit abutting structures 2 correspond to a hexagonal housing. The housing material is selected as high-strength aluminum alloy, taking into account both lightweight and structural strength. The handle 17 is arranged on the side of the housing and is rigidly connected to the driving gear 14 through the transmission shaft. The surface of the handle 17 is coated with an anti-slip rubber layer. An installation groove is provided inside each side of the housing for fixing the components of each unit abutting structure 2, forming a uniform force distribution structure.

[0068] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0069] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined.

[0070] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present application can easily think of various changes or substitutions, and these should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An anti-seismic protection device for cultural relics, characterized in that, Including: Abutting device (1) for contacting and fixing cultural relics; the abutting device (1) is composed of a plurality of unit abutting structures (2), and each unit abutting structure (2) includes an abutting portion (3), a support rod (4) and a sliding member (5) provided on the support rod (4); the abutting portion (3) is connected to the support rod (4) in a linkage manner so as to be pushed by the support rod (4) to abut against or move away from the cultural relic. A circular opening and closing mechanism (9) for adaptively adjusting the accommodation size of cultural relics through radial telescopic movement; the circular opening and closing mechanism (9) includes a first limiting member (10), and a plurality of arc-shaped limiting grooves (11) are provided on the first limiting member (10), and the plurality of arc-shaped limiting grooves (11) are circumferentially and spacedly distributed around the circumference of the first limiting member (10), and the arc-shaped limiting grooves (11) extend from the inside to the outside along the circumference and the radius of the first limiting member (10); each arc-shaped limiting groove (11) is in sliding fit with the sliding member (5) of one of the unit abutting structures (2).

2. The anti-seismic protection device for cultural relics according to claim 1, characterized in that, The circular opening and closing mechanism (9) further includes a second limiting member (12), and the second limiting member (12) is provided with a guiding cavity (13) for the support rod (4) to move, and the guiding cavity (13) extends along the length direction of the support rod (4).

3. The anti-seismic protection device for cultural relics according to claim 2, characterized in that, The circular opening and closing mechanism (9) is a gear transmission telescopic mechanism; the gear transmission telescopic mechanism includes a driving gear (14) and a driven gear (15) that mesh with each other; the driven gear (15) is connected to the first limiting member (10) to drive the first limiting member (10) to rotate.

4. The anti-seismic protection device for cultural relics according to claim 3, wherein The unit abutting structure (2) includes a plurality of hierarchical buffer devices (6); each hierarchical buffer device (6) includes at least two buffer layers, and the adjacent two buffer layers belonging to the same hierarchical buffer device (6) abut against each other in sequence along the radius of the first limiting member (10).

5. The anti-seismic protection device for cultural relics according to claim 4, wherein, The two buffer layers are respectively an inner buffer unit (7) and an outer buffer unit (8); the inner buffer unit (7) includes a spiral spring (711) and an inner core rod (712); the outer buffer unit (8) includes a disc spring (811) and an outer sleeve (812); the inner core rod (712) is nested in the outer sleeve (812); the inner core rod (712), the spiral spring (711) and the disc spring (811) abut against each other in sequence along the buffer direction.

6. The anti-seismic protection device for cultural relics according to claim 5, wherein, The inner core rod (712) is sleeved outside the spiral spring (711); the outer sleeve (812) is sleeved outside the disc spring (811).

7. The anti-seismic protection device for cultural relics according to claim 5, characterized in that, The inner buffer unit (7) further includes a first guide block (713), and the first guide block (713) is disposed between the helical spring (711) and the inner core rod (712); the inner core rod (712), the first guide block (713), and the end of the helical spring (711) are sequentially abutted, and the first guide block (713) is movably sleeved on the inner wall of the outer sleeve (812); the outer buffer unit (8) includes a second guide block (813), and opposite ends of the second guide block (813) are respectively abutted against the helical spring (711) and the disc spring (811), and the second guide block (813) is movably sleeved on the inner wall of the outer sleeve (812).

8. The anti-seismic protection device for cultural relics according to claim 7, wherein, An axially extending guide groove (814) is provided on the inner wall of the outer sleeve (812); the first guide block (713) is provided with a first protrusion that is slidably engaged with the guide groove (814); the second guide block (813) is provided with a second protrusion that is slidably engaged with the guide groove (814).

9. The anti-seismic protection device for cultural relics according to claim 5, wherein, A silica gel contact head (714) is provided on the inner core rod (712), and an anti-slip texture structure is provided on the silica gel contact head (714).

10. The anti-seismic protection device for cultural relics according to claim 3, wherein, The cultural relic earthquake protection device further includes a polygonal outer shell (16), and the number of sides of the polygonal outer shell (16) is adapted to the number of unit abutting structures (2); a handle (17) is provided on the outer side of the polygonal outer shell (16), and the handle (17) is drivingly connected to the driving gear (14).

Images