Composite multi-dimensional shock insulation device

Abstract

The invention discloses a composite multi-dimensional shock isolation device, belongs to the technical field of building shock isolation, and aims to solve the problem that an existing multi-dimensional shock isolation device is difficult to comprehensively isolate shock with different amplitudes and frequencies. Comprising a spherical main damper, the spherical main damper is connected with a cylindrical base through a plurality of horizontal damping springs, the spherical main damper comprises a plurality of spring steel plates and elastic rubber balls, the spring steel plates are arranged around the circumference of a vertical shaft, and the upper ends of the spring steel plates are clamped between an upper pressing plate and an upper clamping plate which are arranged up and down; the lower ends of the spring steel plates are clamped between the lower clamping plate and the lower bottom plate which are vertically arranged, the inner waist ring and the outer waist ring are clamped on the inner sides and the outer sides of the spring steel plates, the spring steel plates form an elastic ball cage, a plurality of elastic steel wire rope balls are arranged in the elastic rubber balls, and the elastic ball cage is filled with the elastic rubber balls. Due to the fact that the inherent frequencies of the spring steel plate, the elastic steel wire rope small ball and the elastic rubber ball are different, the resonance phenomenon can be effectively avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of building seismic isolation, and in particular relates to a seismic isolation device for a building and equipment inside the building. Background Art

[0002] Earthquakes, air currents, vehicles, machines, etc. can all cause vibrations in buildings and the equipment inside them. On the one hand, vibrations are everywhere and at all times. On the other hand, vibrations are harmful in most cases. For example, earthquakes can cause houses to collapse and a large number of casualties. Although other types of vibrations are not as severe as earthquakes, they can also cause varying degrees of damage to buildings. While vibrations greatly reduce the service life of buildings, they can also have a chain reaction on the equipment inside the buildings. First, they cause the equipment inside the buildings to vibrate accordingly, and second, they cause the equipment inside the buildings to lose their due accuracy.

[0003] The traditional earthquake-proof method is to increase the cross-sectional size of building components or improve the standard grade of building materials. These methods will greatly increase the construction cost and will not isolate vibration. Therefore, under the premise of maintaining the original plastic deformation capacity of the building, setting up an isolation layer between the building foundation and the main body of the building, and setting up an isolation layer between the equipment and the building floor, becomes an economical and practical earthquake-proof measure.

[0004] Whether it is an earthquake or other forms of vibration, it is generally a combination of multi-dimensional space vibration, including horizontal movement, vertical movement, and vibration in other directions. Therefore, seismic isolation from only one direction will not fundamentally achieve seismic isolation. Therefore, there is an urgent need to develop safe and reliable multi-dimensional seismic isolation devices.

[0005] There are relatively few multi-dimensional seismic isolation devices currently available. Even if some seismic isolation devices have achieved multi-dimensional seismic isolation in terms of function, since the structure and materials used in the seismic isolation devices are relatively simple and their natural frequencies are certain, it is difficult to achieve comprehensive seismic isolation for vibrations of different amplitudes, frequencies, and energies. Summary of the invention

[0006] The purpose of the present invention is to solve the problem that the existing multi-dimensional seismic isolation device is difficult to achieve comprehensive seismic isolation for vibrations of different amplitudes, different frequencies, and different energies. The technical solution adopted by the present invention is as follows:

[0007] A composite multi-dimensional seismic isolation device comprises a spherical main shock absorber, a cylindrical base and a plurality of horizontal shock absorbing springs;

[0008] The spherical main shock absorber comprises an upper clamping plate, an upper pressure plate, a lower bottom plate, a lower clamping plate, a spring steel plate, an elastic rubber ball, an inner waist ring and an outer waist ring. A plurality of spring steel plates are arranged around the circumference of a vertical axis. The spring steel plates are arc-shaped, and the middle part of the spring steel plates arches outward. The upper ends of a plurality of spring steel plates are clamped between the upper pressure plate and the upper clamping plate arranged up and down, and the lower ends of a plurality of spring steel plates are clamped between the lower clamping plate and the lower bottom plate arranged up and down. The inner waist ring and the outer waist ring are clamped between the inner and outer sides of the plurality of spring steel plates. The upper clamping plate, the upper pressure plate, the lower bottom plate, the lower clamping plate, a plurality of spring steel plates, the inner waist ring and the outer waist ring form a spherical elastic ball cage. A plurality of elastic steel wire rope balls are arranged in the elastic rubber ball. The plurality of elastic steel wire rope balls and the elastic rubber ball are vulcanized to form an integrated structure, and the elastic rubber ball fills the elastic ball cage.

[0009] The cylindrical base includes a barrel portion and a base portion, wherein the base portion is located at the lower end of the barrel portion, and the base portion is connected to the building foundation. A plurality of first guide columns are arranged on the upper circumference of the barrel portion, and a spherical main shock absorber is located in the barrel portion, and the spherical main shock absorber is abutted against the base portion up and down. A plurality of second guide columns are arranged on the upper circumference of the outer waist ring, and the plurality of second guide columns are coaxially arranged with the plurality of first guide columns in a one-to-one correspondence. One ends of a plurality of horizontal shock-absorbing springs are correspondingly sleeved on the plurality of first guide columns, and the other ends of the plurality of horizontal shock-absorbing springs are correspondingly sleeved on the plurality of second guide columns, and the two ends of the horizontal shock-absorbing springs are respectively abutted against the outer waist ring and the barrel portion, and the upper splint is connected to the main body of the building.

[0010] Furthermore, the number of the spring steel plates is eight.

[0011] Furthermore, the number of the horizontal shock absorbing springs is eight.

[0012] Furthermore, the inner waist ring and the outer waist ring are clamped in the horizontal radial direction of a plurality of spring steel plates.

[0013] Furthermore, the volume of the plurality of elastic steel wire rope balls accounts for more than three fifths of the elastic ball cage.

[0014] Furthermore, the spherical main shock absorber and the base portion are butted against each other via a polytetrafluoroethylene pad.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. If the main body of the building vibrates in the vertical direction, the vibration can be absorbed by the several spring steel plates, several elastic steel wire rope balls and elastic rubber balls in the spherical main shock absorber. If the main body of the building vibrates in the horizontal direction, since the spherical main shock absorber is connected to the cylindrical base through several circumferentially arranged horizontal shock absorbing springs, any horizontal vibration is transmitted to the horizontal shock absorbing spring, and the energy generated by the horizontal vibration can be absorbed by the horizontal shock absorbing spring and the spherical main shock absorber. If the external load vibrates in a composite manner, such as the superposition of the above-mentioned vertical vibration and horizontal vibration, the vibration energy transmitted from any direction can be absorbed by the spherical main shock absorber and several horizontal shock absorbing springs. The purpose of the present invention is to provide a seismic isolation device that can be used for various vibration damping in view of the uncertainty of the source direction, frequency, amplitude, energy, etc. The device can be installed between the main body of the building and the building foundation to reduce the transmission of vibration to the main body of the building, and is used for the seismic isolation of the entire building; it can also be installed between the equipment in the building and the floors or walls of the building to reduce the transmission of vibration to the equipment, and is used for the seismic isolation of the equipment in the building. Since the natural frequencies of the spring steel plate, the elastic steel wire rope ball and the elastic rubber ball are different, the spherical main shock absorber can have a shock absorbing effect on vibrations of different frequencies.

[0017] 2. Since the natural frequencies of the spring steel plate, elastic steel wire rope ball and elastic rubber ball are different, the resonance phenomenon can be effectively avoided. The seismic isolation capacity of the seismic isolation device can be adjusted by changing the curvature, width, thickness or quantity of the spring steel plate, as well as the relevant performance parameters of the elastic steel wire rope ball and elastic rubber ball. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 for Figure 1 AA section view;

[0020] Figure 3 It is a K-direction view of the present invention;

[0021] Figure 4 It is a structural schematic diagram of a spherical main shock absorber;

[0022] Figure 5 This is the assembly drawing of the elastic ball cage;

[0023] Figure 6 for Figure 5 BB cross-sectional view;

[0024] Figure 7 is a cross-sectional view of the upper pressing plate;

[0025] Figure 8 is a top view of the upper pressing plate;

[0026] Fig. 9 is a cross-sectional view of the upper splint;

[0027] Fig.10 is a top view of the upper splint;

[0028] Fig.11 It is a structural schematic diagram of a spring steel plate;

[0029] Fig.12 is a cross-sectional view of the inner waist ring;

[0030] Fig.13 It is a top view of the inner waist circle;

[0031] Fig.14 is a cross-sectional view of the outer waist ring;

[0032] Fig.15 It is a top view of the outer waist circle;

[0033] Fig.16 is a cross-sectional view of the lower splint;

[0034] Fig.17 is a bottom view of the lower splint;

[0035] Fig.18 is a cross-sectional view of the lower base plate;

[0036] Fig.19 is a top view of the lower base plate;

[0037] Fig. 20 It is a schematic diagram of the elastic steel wire rope ball and the elastic rubber ball being vulcanized into one.

[0038] In the figure, 1. building foundation, 2. building body, 3. first guide column, 4. horizontal shock-absorbing spring, 5. cylindrical base, 6. spherical main shock absorber, 7. polytetrafluoroethylene pad, 8. elastic steel wire rope ball, 9. elastic rubber ball, 10. upper pressure plate, 11. inner waist ring, 12. upper splint, 13. spring steel plate, 14. lower bottom plate, 15. lower splint, 16. outer waist ring, 17. second guide column, 18. groove. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is described below by the specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0040] The connection mentioned in the present invention is divided into fixed connection and detachable connection. The fixed connection is a non-detachable connection including but not limited to conventional fixed connection methods such as folding connection, rivet connection, bonding connection and welding connection. The detachable connection includes but not limited to conventional detachable methods such as bolt connection, snap connection, pin connection and hinge connection. When the specific connection method is not clearly defined, it is assumed that at least one connection method can be found in the existing connection methods to achieve the function, and those skilled in the art can choose according to their needs. For example: welding connection is selected for fixed connection, and bolt connection is selected for detachable connection.

[0041] The present invention will be further described in detail below in conjunction with the accompanying drawings. The following embodiments are provided to explain the present invention, but the present invention is not limited to the following embodiments.

[0042] Example: Figures 1 to 20 As shown, a composite multi-dimensional seismic isolation device includes a spherical main shock absorber 6, a cylindrical base 5 and a plurality of horizontal shock absorbing springs 4;

[0043] The ball-type main shock absorber 6 includes an upper clamping plate 12, an upper pressure plate 10, a lower bottom plate 14, a lower clamping plate 15, a spring steel plate 13, an elastic rubber ball 9, an inner waist ring 11 and an outer waist ring 16. A plurality of spring steel plates 13 are arranged circumferentially around the vertical axis. The spring steel plates 13 are arc-shaped, and the middle part of the spring steel plates 13 is arched outward. The upper ends of the plurality of spring steel plates 13 are clamped between the upper pressure plate 10 and the upper clamping plate 12 arranged up and down, and the lower ends of the plurality of spring steel plates 13 are clamped between the lower clamping plate 15 and the lower bottom plate 14 arranged up and down. A plurality of grooves 18 are circumferentially arranged on the upper end surface of the upper clamping plate 12 and the lower end surface of the lower clamping plate 15. The width of the groove 18 is the same as that of the spring steel plate 13. The width of the plate 13 is consistent, and the two side ends of the spring steel plate 13 are respectively inserted into the grooves 18 of the upper clamping plate 12 and the lower clamping plate 15 in a one-to-one manner, so that a plurality of spring steel plates 13 can be circumferentially limited. The inner waist ring 11 and the outer waist ring 16 are clamped on the inner and outer sides of a plurality of spring steel plates 13. The upper clamping plate 12, the upper pressure plate 10, the lower bottom plate 14, the lower clamping plate 15, a plurality of spring steel plates 13, the inner waist ring 11 and the outer waist ring 16 form a spherical elastic ball cage, and a plurality of elastic steel wire rope balls 8 are arranged in the elastic rubber ball 9. The plurality of elastic steel wire rope balls 8 and the elastic rubber ball 9 are vulcanized to form an integrated structure, and the elastic rubber ball 9 fills the elastic ball cage;

[0044] The cylindrical base 5 includes a barrel portion and a base portion, wherein the base portion is located at the lower end of the barrel portion, and the base portion is connected to the building foundation 1. A plurality of first guide columns 3 are arranged on the upper circumference of the barrel portion, and a spherical main shock absorber 6 is located in the barrel portion, and the spherical main shock absorber 6 is abutted against the base portion up and down. A plurality of second guide columns 17 are arranged on the upper circumference of the outer waist ring 16, and the plurality of second guide columns 17 are coaxially arranged with the plurality of first guide columns 3 in a one-to-one correspondence. One ends of a plurality of horizontal shock-absorbing springs 4 are sleeved on the plurality of first guide columns 3 in a one-to-one correspondence, and the other ends of a plurality of horizontal shock-absorbing springs 4 are sleeved on the plurality of second guide columns 17 in a one-to-one correspondence. The two ends of the horizontal shock-absorbing springs 4 are respectively abutted against the outer waist ring 16 and the barrel portion, and the upper splint 12 is connected to the building main body 2.

[0045] If the building main body 2 vibrates in the vertical direction, the vibration can be absorbed by the plurality of spring steel plates 13, the plurality of elastic steel wire rope balls 8 and the elastic rubber balls 9 in the spherical main shock absorber 6.

[0046] If the building body 2 vibrates in the horizontal direction, since the spherical main shock absorber 6 is connected to the cylindrical base 5 through a number of circumferentially arranged horizontal shock absorbing springs 4, any horizontal vibration can be transmitted to the horizontal shock absorbing spring 4, and the energy generated by the horizontal vibration can be absorbed by the horizontal shock absorbing spring 4 and the spherical main shock absorber 6.

[0047] If a composite vibration occurs in the external load, such as the superposition of the vertical vibration and the horizontal vibration, the vibration energy transmitted from any direction can be absorbed by the spherical main shock absorber 6 and a plurality of horizontal shock absorbing springs 4.

[0048] By adjusting the relevant performance parameters of the spring steel plate 13, the elastic steel wire rope ball 8 and the elastic rubber ball 9, the comprehensive seismic isolation capacity of the seismic isolation device can be adjusted.

[0049] The purpose of the present invention is to provide a seismic isolation device that can be used for various vibration damping in view of the uncertainty of earthquake source direction, frequency, amplitude, energy, etc. The device can be installed between the main body of the building and the foundation of the building to reduce the transmission of vibration to the main body of the building, and is used for the seismic isolation of the entire building; it can also be installed between the equipment in the building and the floors or walls of the building to reduce the transmission of vibration to the equipment, and is used for the seismic isolation of the equipment in the building. Since the natural frequencies of the spring steel plate 13, the elastic steel wire rope ball 8, and the elastic rubber ball 9 are different, the spherical main shock absorber can have a shock absorbing effect on vibrations of different frequencies.

[0050] The number of spring steel plates 13 is eight.

[0051] The number of the horizontal damping springs 4 is eight.

[0052] The inner waist ring 11 and the outer waist ring 16 are clamped in the horizontal radial direction of a plurality of spring steel plates 13 .

[0053] The volume of the plurality of elastic steel wire rope balls 8 accounts for more than three fifths of the elastic ball cage.

[0054] Several elastic steel balls 8 are bundled together by fine steel wires or iron wires so that they can be placed in a spherical mold, and then rubber fillers are filled into the mold for vulcanization, so that the granular plastic rubber is converted into elastic rubber and integrated with the elastic steel balls 8, and then placed in the elastic ball cage. The elastic ball cage, elastic rubber balls 9, and elastic steel wire rope balls 8 form a shock-absorbing body with composite material characteristics. In addition to having an elastic function, the elastic steel wire rope balls 8 can also enhance the supporting stiffness of the core of the elastic rubber balls 9. Installing elastic rubber balls 9 and elastic steel wire rope balls 8 that are filled and vulcanized as one inside the elastic ball cage can enhance the seismic performance of the multi-dimensional seismic isolation device. In addition, the elastic rubber ball 9 itself is an elastomer and can also play a good seismic role. Its elasticity, hardness, and the size and number of pores inside the structure can be adjusted by changing the ingredients, thereby effectively limiting and controlling vibration.

[0055] This composite material-based shock-absorbing device can effectively avoid resonance due to the different natural frequencies of the materials. The shock-isolating capacity of the shock-isolating device can be adjusted by changing the curvature, width, thickness or quantity of the spring steel plate, as well as the relevant performance parameters of the elastic steel wire rope ball 8 and the elastic rubber ball 9.

[0056] The spherical main shock absorber 6 is abutted against the base portion via a polytetrafluoroethylene pad 7 , and the spherical main shock absorber 6 can slide in any horizontal direction on the polytetrafluoroethylene pad 7 .

[0057] The above embodiments are merely exemplary descriptions of the present invention and do not limit its protection scope. Those skilled in the art may also make partial changes thereto, which are within the protection scope of the present invention as long as they do not exceed the spirit of the present invention.

Claims

1. A composite multi-dimensional seismic isolation device, characterized in that: It comprises a spherical main shock absorber (6), a cylindrical base (5) and a plurality of horizontal shock absorbing springs (4); The ball-type main shock absorber (6) comprises an upper clamping plate (12), an upper pressure plate (10), a lower bottom plate (14), a lower clamping plate (15), a spring steel plate (13), an elastic rubber ball (9), an inner waist ring (11) and an outer waist ring (16). A plurality of spring steel plates (13) are arranged around the circumference of a vertical axis. The spring steel plates (13) are arc-shaped. The middle part of the spring steel plates (13) is arched outward. The upper ends of the plurality of spring steel plates (13) are clamped between the upper pressure plate (10) and the upper clamping plate (12) arranged above and below. The lower ends of the plurality of spring steel plates (13) are clamped between the lower clamping plates (15) arranged above and below. ) and the lower bottom plate (14), the inner waist ring (11) and the outer waist ring (16) are clamped on the inner and outer sides of the plurality of spring steel plates (13), the upper clamping plate (12), the upper pressure plate (10), the lower bottom plate (14), the lower clamping plate (15), the plurality of spring steel plates (13), the inner waist ring (11) and the outer waist ring (16) form a spherical elastic ball cage, the elastic rubber ball (9) is provided with a plurality of elastic steel wire rope balls (8), the plurality of elastic steel wire rope balls (8) and the elastic rubber ball (9) are vulcanized to form an integrated structure, and the elastic rubber ball (9) fills the elastic ball cage; The cylindrical base (5) comprises a barrel portion and a base portion, wherein the base portion is located at the lower end of the barrel portion and is connected to a building foundation (1). A plurality of first guide columns (3) are arranged on the upper circumference of the barrel portion. A spherical main shock absorber (6) is located in the barrel portion and is abutted against the base portion up and down. A plurality of second guide columns (17) are arranged on the upper circumference of an outer waist ring (16). The plurality of second guide columns (17) are coaxially arranged with the plurality of first guide columns (3) in a one-to-one correspondence. One ends of the plurality of horizontal shock absorbing springs (4) are sleeved on the plurality of first guide columns (3) in a one-to-one correspondence, and the other ends of the plurality of horizontal shock absorbing springs (4) are sleeved on the plurality of second guide columns (17) in a one-to-one correspondence. The two ends of the horizontal shock absorbing springs (4) are respectively abutted against the outer waist ring (16) and the barrel portion. An upper clamping plate (12) is connected to a building main body (2).

2. A composite multi-dimensional seismic isolation device according to claim 1, characterized in that: The number of spring steel plates (13) is eight.

3. A composite multi-dimensional seismic isolation device according to claim 1, characterized in that: The number of the horizontal shock absorbing springs (4) is eight.

4. The composite multi-dimensional seismic isolation device according to claim 1, characterized in that: The inner waist ring (11) and the outer waist ring (16) are clamped in the horizontal radial direction of a plurality of spring steel plates (13).

5. The composite multi-dimensional seismic isolation device according to claim 1, characterized in that: The volume of the plurality of elastic steel wire rope balls (8) accounts for more than three fifths of the elastic ball cage.

6. A composite multi-dimensional seismic isolation device according to any one of claims 1 to 5, characterized in that: The spherical main shock absorber (6) and the base portion are abutted against each other via a polytetrafluoroethylene pad (7).

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