Vertical shock isolation device for engineering structure

Abstract

The utility model provides an engineering structure vertical shock isolation device, relates to anti-seismic equipment technical field, including bottom plate and top plate, the outer surface of top block is in sliding connection with carriage, the inside of carriage is provided with first rubber block, the inner side of second rubber block is provided with contraction groove, the inner wall of slide way is in sliding connection with footstock, and the top seat is in sliding connection with the inner wall of slide way. According to the vertical seismic isolation device of the engineering structure, through cooperation of the sliding frame, the first connecting rod, the second connecting rod and the top seat, the distance between the bottom plate and the top plate is shrunk, the first rubber block is compressed, the second rubber block is compressed, and therefore the vertical seismic isolation device of the engineering structure is formed. The vertical thrust is converted into the horizontal thrust through the first connecting rod and the second connecting rod, the second rubber block is compressed by the top seat, the vertical vibration force of an earthquake is dispersed, absorbed and consumed by vertically compressing the first rubber block and the second rubber block up and down, and the earthquake isolation function is improved.

Description

Technical Field

[0001] This utility model relates to a vertical seismic isolation device, specifically a vertical seismic isolation device for engineering structures, belonging to the field of seismic equipment technology. Background Technology

[0002] Vertical seismic isolation devices are technical devices used to reduce or isolate vertical seismic vibrations. They are mainly used in building structures, bridge structures, underground structures, and other engineering projects to protect the structure from the influence of the vertical component of earthquakes. Vertical seismic isolation devices extend the natural period of the structure by setting a seismic isolation layer between the foundation and the superstructure, reducing the transmission of seismic energy to the superstructure, thereby reducing the seismic response of the superstructure. By absorbing and dissipating the vertical vibration force of the earthquake, vertical seismic isolation devices reduce the vertical vibration of the structure and improve the safety of the building.

[0003] While existing seismic isolation technologies can reduce the horizontal seismic load on structures, their effectiveness in reducing vertical seismic loads is poor. When existing rubber bearings are used to provide vertical support for buildings, the range of reduction in vertical stiffness is very limited, resulting in poor vertical seismic isolation performance. To address these issues, we provide a vertical seismic isolation device for engineering structures. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a vertical seismic isolation device for engineering structures. The specific technical solution is as follows:

[0005] A vertical seismic isolation device for an engineering structure includes a base plate and a top plate. A top block is connected to the upper surface of the base plate, and a slide is slidably connected to the outer surface of the top block. A first rubber block is disposed inside the slide, and an expansion groove is formed on the inner side of the slide. A pressure block is connected to the lower surface of the top plate, and the outer surface of the pressure block is slidably connected to the inner wall of the slide. A slide rail is formed on the inner side of the slide, and a second rubber block is disposed inside the slide rail. A contraction groove is formed on the inner side of the second rubber block. A top seat is slidably connected to the inner wall of the slide rail, and a first spring is disposed inside the slide rail. The inner wall of the top seat contacts the outer surface of the second rubber block, and a first connecting rod and a second connecting rod are disposed outside the top seat.

[0006] Preferably, the number of slides is four, and the four slides are located at the four corners of the carriage. The number of second rubber blocks and top seats is the same as the number of slides.

[0007] Preferably, a support shaft is connected to the outer surface of the top seat, a base one is connected to the lower surface of the top plate, one end of the first connecting rod is rotatably connected to the inner wall of the base one, and the other end of the first connecting rod is rotatably connected to the outer surface of the support shaft, a base two is connected to the upper surface of the bottom plate, one end of the second connecting rod is rotatably connected to the inner wall of the base two, and the other end of the second connecting rod is rotatably connected to the outer surface of the support shaft.

[0008] Preferably, one end of the first spring is connected to the inner wall of the slide, and the other end of the first spring is connected to one side of the top seat.

[0009] Preferably, a sliding sleeve is connected to the upper surface of the base plate, and a guide rod is connected to the lower surface of the top plate, with the outer surface of the guide rod slidably connected to the inner wall of the sliding sleeve.

[0010] Preferably, a second spring is connected to the inner bottom wall of the sliding sleeve, and the end of the second spring away from the inner bottom wall of the sliding sleeve is connected to one end of the guide rod.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The vertical seismic isolation device of this engineering structure, through the cooperation between the slide, the first connecting rod, the second connecting rod and the top seat, uses the cavity inside the slide to provide space for installing the first rubber block. When vibration pushes the bottom plate to move upward, the gap between the bottom plate and the top plate narrows and compresses the first rubber block. The top plate and the bottom plate drive the connecting rod to push the top seat to move. The first connecting rod and the second connecting rod convert the vertical thrust into a horizontal thrust. The top seat compresses the second rubber block. By vertically compressing the first and second rubber blocks, the vertical vibration force of the earthquake is dispersed, absorbed and consumed, thus improving the seismic isolation function.

[0013] 2. The vertical vibration isolation device of this engineering structure uses the groove between the expansion groove and the contraction groove. When the first rubber block is squeezed by the top block and the pressure block, it will deform. The expansion groove accommodates the extended shape of the first rubber block after deformation, providing space for the extension deformation of the first rubber block. When the second rubber block is compressed, it will extend and deform. The contraction groove inside itself absorbs the extended shape after deformation, preventing the first and second rubber blocks from having nowhere to release their deformed shapes and maintaining the stability of the first and second rubber blocks. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional schematic diagram of the internal structure of the carriage in this utility model;

[0016] Figure 3This is a cross-sectional schematic diagram of the internal structure of the sliding sleeve in this utility model;

[0017] Figure 4 This is a schematic diagram of the overall three-dimensional structure of the carriage in this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the second rubber block in this utility model.

[0019] Figure descriptions: 1. Base plate; 2. Top plate; 3. Top block; 4. Slide; 5. First rubber block; 6. Expansion groove; 7. Pressure block; 8. Slide track; 9. Second rubber block; 10. Contraction groove; 11. Top seat; 12. First connecting rod; 13. Second connecting rod; 14. Support shaft; 15. Base one; 16. Base two; 17. First spring; 18. Sliding sleeve; 19. Guide rod; 20. Second spring. Detailed Implementation

[0020] The present invention will now be further described with reference to the accompanying drawings.

[0021] Please see Figures 1-5 A vertical seismic isolation device for an engineering structure includes a base plate 1 and a top plate 2, which are connected to the building. A top block 3 is connected to the upper surface of the base plate 1, providing support for a first rubber block 5. A slide 4 is slidably connected to the outer surface of the top block 3. The first rubber block 5 is housed inside the slide 4, which has a cavity to provide space for the first rubber block 5. An expansion groove 6 is formed on the inner side of the slide 4. When the first rubber block 5 is compressed by the top block 3 and the pressure block 7, it deforms. The expansion groove 6 accommodates the deformed shape of the first rubber block 5, maintaining the stability of the first rubber block 5 and preventing it from detaching from the top block 3 and the pressure block 7. A pressure block 7 is connected to the lower surface of the top plate 2. Block 7, the outer surface of the pressure block 7 is slidably connected to the inner wall of the slide 4. The inner side of the slide 4 is provided with a slide 8, and the interior of the slide 8 is provided with a second rubber block 9. The inner side of the second rubber block 9 is provided with a shrinkage groove 10. After the second rubber block 9 is compressed, it will produce an extension deformation. The shrinkage groove 10 inside itself absorbs the deformation and extension. The inner wall of the slide 8 is slidably connected with a top seat 11. The inner wall of the top seat 11 is in contact with the outer surface of the second rubber block 9. The top seat 11 wraps around the second rubber block 9 to improve the stability of the second rubber block 9. The first rubber block 5 and the second rubber block 9 are both made of natural rubber. Natural rubber has high elasticity, tensile strength, strong wear resistance, heat resistance, cold resistance, water resistance and oil resistance, and has good physical and mechanical properties.

[0022] The top seat 11 is externally equipped with a first connecting rod 12 and a second connecting rod 13. There are four slides 8, located at the four corners of the carriage 4. The number of second rubber blocks 9, top seat 11, and slides 8 is the same. A support shaft 14 is connected to the outer surface of the top seat 11. A base 15 is connected to the lower surface of the top plate 2. One end of the first connecting rod 12 is rotatably connected to the inner wall of the base 15, and the other end of the first connecting rod 12 is rotatably connected to the outer surface of the support shaft 14. A base 2 16 is connected to the upper surface of the bottom plate 1. One end of the second connecting rod is rotatably connected to the inner wall of the base 2 16. The other end of the connecting rod is rotatably connected to the outer surface of the support shaft 14. The top seat 11 receives the pushing force of the first connecting rod 12 and the second connecting rod 13 through the support shaft 14. When the top plate 2 and the bottom plate 1 contract, the first connecting rod 12 and the second connecting rod 13 are pushed to move their positions. At the same time, the angle between the first connecting rod 12 and the second connecting rod 13 changes. The first connecting rod 12 and the second connecting rod 13 push the top seat 11 to move its position. While the top seat 11 is moving its position, it compresses the second rubber block 9. The second rubber block 9 absorbs and disperses the thrust transmitted from the first connecting rod 12 and the second connecting rod 13.

[0023] The slide 8 is equipped with a first spring 17. One end of the first spring 17 is connected to the inner wall of the slide 8, and the other end of the first spring 17 is connected to one side of the top seat 11. The first spring 17 provides elastic support for the top seat 11. When the top plate 2 contracts between the two plates, it pushes the first connecting rod 12 and the second connecting rod 13 to move. The first connecting rod 12 and the second connecting rod 13 will push the top seat 11 to compress the second rubber block 9. When the second rubber block 9 pushes the top seat 11 to reset, in order to prevent the reset force of the top seat 11 from being too large, the first spring 17 provides support behind the top seat 11, which plays a buffering role and improves the stability of the top seat 11 during reset movement.

[0024] A sliding sleeve 18 is connected to the upper surface of the base plate 1, and a guide rod 19 is connected to the lower surface of the top plate 2. The outer surface of the guide rod 19 is slidably connected to the inner wall of the sliding sleeve 18. The guide rod 19 is inserted into the sliding sleeve 18, which guides the movement of the guide rod 19 and maintains the stability of the guide rod 19 when it moves up and down. This allows the top plate 2 to move up and down during retraction, preventing misalignment between the top plate 2 and the base plate 1. There are four sliding sleeves 18 and four guide rods 19, located on the top plate 1. At the four corners of the base plate 1 and the bottom plate 2, the inner bottom wall of the sliding sleeve 18 is connected to a second spring 20. The end of the second spring 20 away from the inner bottom wall of the sliding sleeve 18 is connected to one end of the guide rod 19. When vibrating, the base plate 1 and the top plate 2 will contract with each other. After the guide rod 19 moves into the sliding sleeve 18, the second spring 20 provides power to reset the guide rod 19, pushing the second guide rod 19 from the inside of the sliding sleeve 18 to the outside. At the same time, the second spring 20 provides elastic support for the guide rod 19.

[0025] When this utility model is in use: First, the base plate 1 will move upward. After the base plate 1 moves upward, the distance between it and the top plate 2 will be shortened. After the distance is reduced, the top block 3 and the pressure block 7 will compress the first rubber block 5. After being compressed, the first rubber block 5 will expand outward. Then, the expanded first rubber block 5 will move into the expansion groove 6. At the same time, the top plate 2 and the base plate 1 will push the first connecting rod 12 and the second connecting rod 13 to move. At the same time, the first connecting rod 12 and the second connecting rod 13 will push the top seat 11 to compress the second rubber block 9. After being compressed, the second rubber block 9 will deform. The second rubber block 9 will absorb the expanded part through its own internal shrinkage groove 10.

[0026] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these embodiments will all fall within the protection scope of the claims of this utility model.

Claims

1. A vertical seismic isolation device for engineering structures, comprising a base plate (1) and a top plate (2), characterized in that: The upper surface of the base plate (1) is connected to a top block (3), the outer surface of the top block (3) is slidably connected to a slide (4), the interior of the slide (4) is provided with a first rubber block (5), the inner side of the slide (4) is provided with an expansion groove (6), the lower surface of the top plate (2) is connected to a pressure block (7), the outer surface of the pressure block (7) is slidably connected to the inner wall of the slide (4), the inner side of the slide (4) is provided with a slide rail (8), the interior of the slide rail (8) is provided with a second rubber block (9), the inner side of the second rubber block (9) is provided with a shrinkage groove (10), the inner wall of the slide rail (8) is slidably connected to a top seat (11), the interior of the slide rail (8) is provided with a first spring (17), the inner wall of the top seat (11) is in contact with the outer surface of the second rubber block (9), and the exterior of the top seat (11) is provided with a first connecting rod (12) and a second connecting rod (13).

2. The vertical seismic isolation device for engineering structures according to claim 1, characterized in that: The number of slides (8) is four, and the four slides (8) are located at the four corners of the carriage (4). The number of second rubber blocks (9) and top seats (11) is the same as the number of slides (8).

3. A vertical seismic isolation device for engineering structures according to claim 1, characterized in that: The outer surface of the top seat (11) is connected to a support shaft (14), the lower surface of the top plate (2) is connected to a base one (15), one end of the first connecting rod (12) is rotatably connected to the inner wall of the base one (15), the other end of the first connecting rod (12) is rotatably connected to the outer surface of the support shaft (14), the upper surface of the bottom plate (1) is connected to a base two (16), one end of the second connecting rod is rotatably connected to the inner wall of the base two (16), and the other end of the second connecting rod is rotatably connected to the outer surface of the support shaft (14).

4. A vertical seismic isolation device for engineering structures according to claim 3, characterized in that: One end of the first spring (17) is connected to the inner wall of the slide (8), and the other end of the first spring (17) is connected to one side of the top seat (11).

5. A vertical seismic isolation device for engineering structures according to claim 1, characterized in that: The upper surface of the base plate (1) is connected to a sliding sleeve (18), and the lower surface of the top plate (2) is connected to a guide rod (19). The outer surface of the guide rod (19) is slidably connected to the inner wall of the sliding sleeve (18).

6. A vertical seismic isolation device for engineering structures according to claim 5, characterized in that: The inner bottom wall of the sliding sleeve (18) is connected to a second spring (20), and the end of the second spring (20) away from the inner bottom wall of the sliding sleeve (18) is connected to one end of the guide rod (19).

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