A retractable seismic gap cover device

Abstract

The application relates to the field of building structure anti-seismic technology, and particularly discloses a telescopic isolation joint cover plate device, which comprises a telescopic component and a connecting piece, the connecting piece comprises a strip plate or a displacement box; the connecting piece is used for being connected with building components on both sides of the isolation joint; the telescopic component is arranged between two symmetrically arranged connecting pieces; when the telescopic cover plate is not subjected to external force, the plane where the telescopic component is located is a horizontal plane; the two ends of the telescopic component are rotationally connected with the two connecting pieces respectively; when the telescopic cover plate is subjected to external force, the telescopic component rotates to make the plane where the telescopic component is located be an inclined plane or a vertical plane; and the telescopic component can be telescopically expanded in the length direction and the width direction of the plane where the telescopic component is located. The telescopic isolation joint cover plate device can produce telescopic expansion and rotational deformation in the horizontal plane and can also produce telescopic expansion and rotational deformation on the inclined plane outside the horizontal plane, so that the problem that the isolation joint is blocked and cannot freely move due to the damage of the cover plate in the earthquake is reduced.

Description

Technical Field

[0001] This invention relates to the field of seismic resistance technology for building structures, and specifically to a retractable seismic isolation joint cover device. Background Technology

[0002] Seismic isolation technology is one of the most effective techniques for enhancing the seismic performance of building structures and mitigating earthquake damage. Seismic isolation technology in earthquake-resistant buildings ensures the normal functioning of the structure during an earthquake by using pre-reserved spaces in the seismic isolation joints. These joints are vertical seams installed within building components, and a cover plate is required at the top to seal the joint and allow for passage and other normal functional uses. However, earthquake damage results indicate that, especially in seismically isolated buildings in medium- to high-intensity seismic zones, the cover plates on the seismic isolation joints or trenches often have significant impacts on the normal seismic performance of the isolated structure.

[0003] The reason why the cover plates of existing seismic isolation joints can easily affect the seismic performance of seismic isolation structures is as follows:

[0004] 1) The vertical bearing capacity of the cover plate spanning the seismic isolation joint or trench is insufficient due to its large width. Currently, there are no cover plates specifically designed to match the width of seismic isolation joints or trenches. For these wider joints or trenches, existing cover plates suitable for narrower joints or trenches are still used. The width difference between wider and narrower seismic isolation joints or trenches can reach 500mm or more. In seismic isolation buildings in medium-to-high seismic intensity zones, the width of the seismic isolation joint can even reach 800mm or more, while the maximum joint width applicable to building expansion joint designs is only 300mm. Therefore, when existing cover plates are used for wider seismic isolation joints or trenches, the increased span leads to insufficient vertical bearing capacity of the cover plate.

[0005] 2) During an earthquake, the cover plate on the seismic isolation joint may be damaged or damaged along with other components, causing the seismic isolation joint to be blocked and unable to move freely. Consequently, the seismic isolation structure cannot deform normally, resulting in damage and destruction of the superstructure. At the same time, it can prevent the cover plate from falling off or bulging, thus maintaining the normal use of the building function.

[0006] In summary, domestic seismic joints primarily utilize steel cap plate structures, resulting in relatively small displacements. However, in high-intensity seismic zones, earthquake-induced displacements are often substantial and occur in multiple directions. Therefore, researching a horizontal seismic expansion joint suitable for high-intensity seismic zones and large-displacement buildings to address these challenges is essential. Summary of the Invention

[0007] The purpose of this invention is to provide a retractable seismic isolation joint cover plate device. The retractable cover plate can expand, contract, and rotate in a horizontal plane, and can also expand, contract, and rotate on an inclined plane outside the horizontal plane, so as to reduce the problem of the seismic isolation joint being blocked and unable to move freely due to the damage of the cover plate during an earthquake.

[0008] This invention is achieved through the following technical solution:

[0009] A retractable seismic isolation joint cover device includes a telescopic component and a connector, wherein the connector includes a strip or a displacement box;

[0010] The strip or displacement box is used to connect with the building components on both sides of the seismic isolation joint;

[0011] The telescopic assembly is disposed between two symmetrically arranged strips or displacement boxes. When the telescopic cover is not subjected to external force, the plane on which the telescopic assembly is located is a horizontal plane. The two ends of the telescopic assembly are rotatably connected to the two strips or displacement boxes respectively. When the telescopic cover is subjected to external force, the telescopic assembly rotates so that its plane is an inclined plane or a vertical plane.

[0012] The telescopic component is capable of telescopic extension and retraction along the length of its plane, and rotation or extension and retraction along the width.

[0013] In this invention, the length direction specifically refers to the gap width direction between two embedded parts or displacement boxes, and the width direction is a direction perpendicular to the length direction in the same plane.

[0014] The telescopic component of the present invention can extend and retract along the length direction of its plane, and rotate or extend and retract along the width direction. The two ends of the telescopic component are respectively rotatably connected to two strips or displacement boxes, that is, the telescopic component can rotate. Rotation refers to movement along the width direction and the height direction (gravity direction) under the action of an earthquake, so that the plane on which the telescopic component is located is a horizontal plane, an inclined plane, or a vertical plane.

[0015] This invention achieves free displacement and automatic reset of the telescopic component by extending and retracting along its length and width in the plane, as well as rotating it. This avoids collisions between adjacent building units or units on both sides of the seismic isolation joint due to excessive deformation. Furthermore, because the telescopic component of this invention can extend and retract along its length, it can adapt to vertical deformation joints (seismic isolation joints) of different widths. Due to the extension, rotation, and automatic reset of the telescopic component, the entire telescopic seismic isolation joint cover plate device has a large deformation capacity. At the same time, the telescopic component itself has a large out-of-plane stiffness, ensuring that the entire telescopic cover plate has a large load-bearing capacity.

[0016] In summary, the telescopic seismic isolation joint cover plate device of the present invention can generate telescopic and rotational deformation in the horizontal plane, and can also generate telescopic and rotational deformation on the inclined plane outside the horizontal plane, so as to reduce the problems of the seismic isolation joint being blocked and unable to move freely due to the damage of the cover plate during the earthquake, as well as the problems of the cover plate falling off and bulging.

[0017] Furthermore, the telescopic assembly includes one or more telescopic mechanisms;

[0018] When the telescopic assembly includes a telescopic mechanism, the telescopic mechanism is composed of multiple telescopic units, which are arranged in parallel in the width direction of the telescopic assembly, and adjacent two telescopic units are hinged to each other in the width direction of the telescopic assembly.

[0019] When a telescopic assembly includes multiple telescopic mechanisms, each telescopic mechanism includes at least one telescopic unit, and in each telescopic mechanism, two adjacent telescopic units are hinged to each other in the width direction of the telescopic assembly.

[0020] The telescopic unit is capable of extending and retracting along the length of its plane, and rotating or extending and retracting along its width.

[0021] Furthermore, the telescopic unit is composed of several rhomboid units connected in series, with adjacent rhomboid units hinged to each other to enable the telescopic unit to extend and retract in its length direction; the four sides of the rhomboid units are hinged to each other to enable the telescopic unit to extend and retract in its width direction.

[0022] Furthermore, the connection between two adjacent rhomboid units is detachable.

[0023] Furthermore, the telescopic unit includes several first links and four second links;

[0024] Several first links are hinged in pairs to form an X-shaped structure. Several X-shaped structures are arranged in a row. The ends of two adjacent X-shaped structures are hinged to each other to form several hinged rhombuses. The two ends of the X-shaped structure at the end are respectively connected to two second links. The ends of the two second links away from the X-shaped structure are hinged to each other, and the hinge is rotatably connected to the strip or displacement box.

[0025] Furthermore, all hinges are connected using pins.

[0026] Furthermore, two layers of telescopic components are arranged from top to bottom between the two symmetrically arranged strips or displacement boxes. The two layers of telescopic components are hinged to each other in the height direction, which specifically refers to the direction of gravity, that is, the direction perpendicular to the horizontal plane.

[0027] Furthermore, a sliding shaft joint is provided inside the displacement box. Both ends of the telescopic component are connected to the sliding shaft joint via connecting plates, or both ends of the telescopic component are directly welded to the strip via connecting plates. One end of the connecting plate is connected to the telescopic component via a pin, and the other end is fixedly connected to the sliding shaft joint.

[0028] Furthermore, the displacement box has a hollow structure, the sliding shaft joint is fixed inside the displacement box, and the side wall of the displacement box is provided with a through groove for the connecting plate to pass through.

[0029] Furthermore, a support assembly is provided above the telescopic component, the support assembly including a support body, a support panel, and a support frame;

[0030] The supporting frame is a foldable structure made of multiple thin steel plates that are sequentially hinged together, with a gap at the hinge point of two adjacent thin steel plates; the thin steel plates are 4-6mm thick patterned steel plates.

[0031] The support is a plastic structure and is placed within the support framework.

[0032] The support panel is a foldable plate-like structure along its length; the support panel is disposed on the support and is bonded to the support frame.

[0033] The retractable seismic isolation joint cover plate device of the present invention can be applied to various scenarios where there are deformation requirements for the plate structure, and is not limited to seismic isolation structures.

[0034] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0035] This invention achieves free displacement and automatic reset of the telescopic component through its telescopic functions in the length and width directions of its plane, as well as its rotation function. It can generate telescopic and rotational deformation in the horizontal plane and rotational deformation outside the horizontal plane. When the telescopic seismic isolation joint cover plate device is fixed on the building components on both sides of the seismic isolation joint, it can be used to cross passages with different joint widths of the seismic isolation joint. It can solve the problem that the cover plate on the existing seismic isolation joint is damaged during an earthquake and cannot move freely, resulting in the seismic isolation structure not being able to deform normally. Attached Figure Description

[0036] The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0037] Figure 1 This is a cross-sectional view of the retractable vibration isolation joint cover plate device of the present invention.

[0038] Figure 2 This is a bottom view of the retractable seismic isolation joint cover plate device of the present invention.

[0039] Figure 3 This is a top view of the retractable seismic isolation joint cover plate device of the present invention.

[0040] Figure 4 This is a schematic diagram of the structure of the support assembly described in this invention.

[0041] Figure 5 This is a schematic diagram of the structure of the telescopic unit described in this invention.

[0042] The attached diagram shows the markings and corresponding component names:

[0043] 1-Displacement box, 2-Telescopic assembly, 3-Support assembly, 4-Support body, 5-Support panel, 6-Support frame, 7-Connecting plate, 8-First connecting rod, 9-Pin, 10-Sliding joint, 11-Building component, 12-Telescopic unit. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0045] Example 1:

[0046] like Figures 1-5 As shown, a retractable seismic isolation joint cover device includes a telescopic component 2 and a connector;

[0047] Two connectors are symmetrically arranged, forming a horizontal plane between them. The connectors are used to connect with building components 11, which include shear walls, wall columns, or beams.

[0048] The connector can be a displacement box 1, a strip, or other structures that can be connected to the embedded parts in the building component 11.

[0049] The strip plate has the same function as the displacement box 1. The following description only uses the connector as the displacement box 1. When the connector is a strip plate, the strip plate is connected to the embedded part in the building component 11 and the end of the expansion component 2 respectively.

[0050] The telescopic component 2 is disposed between two symmetrically arranged displacement boxes 1. When the telescopic cover is not subjected to external force, the plane on which the telescopic component 2 is located is a horizontal plane. The two ends of the telescopic component 2 are rotatably connected to the two displacement boxes 1 respectively. When the telescopic cover is subjected to external force, the telescopic component 2 rotates so that its plane is an inclined plane or a vertical plane.

[0051] One way to achieve the rotation of the telescopic component 2 is as follows:

[0052] The displacement chamber 1 is equipped with a sliding joint 10. Both ends of the telescopic assembly 2 are connected to the sliding joint 10 via connecting plates 7. One end of the connecting plate 7 is connected to the telescopic assembly 2 via a pin 9, and the other end is fixedly connected to the sliding joint 10. The connecting plate 7 serves as a support for the telescopic assembly 2, allowing the telescopic assembly 2 to undergo expansion and contraction deformation between supports, thus meeting the deformation requirements under seismic loading. The connecting plate 7 and the sliding joint 10 are welded together to form a single unit, which is placed inside the displacement chamber 1.

[0053] Specifically, the displacement box 1 has a hollow structure, the sliding shaft joint 10 is fixed inside the displacement box 1, and the inner side wall of the displacement box 1 is provided with a through groove for the connecting plate 7 to pass through. The inner side wall of the displacement box 1 specifically refers to the side opposite to the two displacement boxes 1.

[0054] The telescopic component 2 is capable of telescopic extension and retraction in the length direction of its plane, and rotation or extension and retraction in the width direction.

[0055] The telescopic component 2 includes one or more telescopic mechanisms;

[0056] When the telescopic component 2 includes a telescopic mechanism, the telescopic mechanism is composed of multiple telescopic units 12, which are arranged in parallel in the width direction of the telescopic component 2, and adjacent telescopic units 12 are hinged to each other in the width direction of the telescopic component 2.

[0057] When the telescopic assembly 2 includes a telescopic mechanism, the telescopic assembly 2 is an integral structure formed by multiple telescopic units 12 hinged together in its width direction. The multiple telescopic units 12 are located on the same plane. When the telescopic cover is not subjected to external force, the multiple telescopic units 12 are located on the same horizontal plane. When the telescopic cover is subjected to external force, the telescopic assembly 2 rotates together along the horizontal axis. The horizontal axis can be understood as the horizontal line connecting the connecting parts (strips or displacement boxes 1), so that the plane where the telescopic assembly 2 is located is an inclined plane or a vertical plane. When the overall rotation angle of the telescopic assembly 2 is less than or greater than 90°, the plane where the telescopic assembly 2 is located is an inclined plane. When the overall rotation angle of the telescopic assembly 2 is equal to 90°, the plane where the telescopic assembly 2 is located is a vertical plane.

[0058] When the telescopic assembly 2 includes multiple telescopic mechanisms, each telescopic mechanism includes at least one telescopic unit 12. When the telescopic mechanism contains multiple telescopic units 12, adjacent telescopic units 12 in the telescopic mechanism are hinged to each other in the width direction of the telescopic assembly 2. For example: Figure 2 The two telescopic units 12 are hinged together in their width direction to form a telescopic mechanism, or the two telescopic units 12 are hinged together in their width direction to form a telescopic mechanism. Figure 2 The three telescopic units 12 are hinged together in their width direction to form a telescopic mechanism. When the telescopic mechanism contains one telescopic unit 12, such as... Figure 2As shown, each telescopic component 2 consists of 4 telescopic mechanisms, each of which is a telescopic unit 12. Each telescopic unit 12 is independent of each other, and both ends of each telescopic unit 12 are respectively hinged to two strips or displacement boxes 1.

[0059] The telescopic unit 12 is capable of extending and retracting along its length in the plane of its location, and rotating or extending and retracting along its width. One specific structure of the telescopic unit 12 is as follows:

[0060] The telescopic unit 12 is composed of several rhomboid units connected in series. Adjacent rhomboid units are hinged to each other to allow the telescopic unit 12 to extend or retract in its length direction. The four sides of the rhomboid units are hinged to each other to allow the telescopic unit 12 to extend or retract in its width direction. Preferably, adjacent rhomboid units are detachably connected to adjust the length of the telescopic unit 12 so as to use seismic isolation joints with different joint widths.

[0061] Specifically, such as Figure 5 As shown, the shrinking unit 12 includes several first links 8 and four second links;

[0062] Several first connecting rods 8 are hinged in pairs to form an X-shaped structure. Several X-shaped structures are arranged in a row. The ends of two adjacent X-shaped structures are hinged to each other to form several hinged rhombuses. The two ends of the X-shaped structures at the ends are respectively connected to two second connecting rods. The ends of the two second connecting rods away from the X-shaped structures are hinged to each other, and the hinge point is rotatably connected to the strip plate or displacement box 1. All hinge points are connected by pins 9.

[0063] In a preferred embodiment, two layers of telescopic components 2 are arranged from top to bottom between two symmetrically positioned strips or displacement boxes 1. The two layers of telescopic components 2 are hinged to each other in the height direction, such as... Figure 1 As shown, the two-layer telescopic assembly 2 is similar to a truss to improve out-of-plane stiffness.

[0064] In this embodiment, the telescopic unit 12 is connected by the pin 9 to form an in-plane rhomboid unit. The displacement box 1 has a built-in sliding shaft joint 10 and is connected to the telescopic unit 12 through the connecting plate 7 to form an integrated system. Alternatively, the connecting plate 7 can be directly welded to the strip to form an integrated system. This mainly solves the problems of small displacement, poor bearing capacity, and inability to adapt to large deformations in multiple directions in seismic isolation buildings.

[0065] In a preferred embodiment, a support assembly 3 is disposed above the telescopic component 2. The support assembly 3 is capable of telescoping along its length and sliding along its width. The support assembly 3 acts as a rigid cover plate, protecting the telescopic component 2 without affecting its folding, telescoping, and sliding. The support assembly 3 is connected to the telescopic component 2 via a pin 9 to form a single unit. The entire unit can meet the deformation requirements in multiple directions under seismic loading.

[0066] Specifically, such as Figure 3 , Figure 4 As shown, the support assembly 3 includes a support body 4, a support body panel 5, and a support frame 6;

[0067] The support frame 6 is a foldable structure formed by sequentially hinged multiple thin steel plates, similar to forming a "hing". There is a gap at the hinge of two adjacent thin steel plates, which ensures that the support frame 6 can be folded in the length direction and slid in the width direction.

[0068] The support 4 is a plastic structure, meaning it is made of a plastic material and is placed within the support frame 6, such as... Figure 1 , Figure 4 As shown, the support 4 can be V-shaped and placed directly into the upward-facing V-groove within the folded structure formed by the support frame 6. The support 4 is plastic, allowing for folding, stretching, and sliding of the support frame 6 in its length direction and width direction.

[0069] The support panel 5 is a foldable plate-like structure along its length. Specifically, the support panel 5 can be a soft material similar to a "carpet" that can adapt to deformation and folding in multiple directions. The support panel 5 is set on the support 4 and bonded to the support frame 6.

[0070] The support body 4, the support panel 5, and the support frame 6 together form a "structural plate".

[0071] This embodiment achieves free displacement and automatic reset of the telescopic component 2 by extending and rotating in the length and width directions of its plane, thereby avoiding the problem of collision between adjacent building components 11 or units on both sides of the seismic isolation joint due to excessive deformation. Since the telescopic component 2 of this embodiment can extend and retract in its length direction, it can adapt to vertical seismic isolation joints of different widths. Furthermore, due to the extension, rotation, and automatic reset of the telescopic component 2, the entire telescopic seismic isolation joint cover plate device has a large load-bearing capacity to meet seismic requirements.

[0072] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0073] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of the invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the disclosed technical content. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

Claims

1. A retractable seismic isolation joint cover device, characterized in that, It includes a telescopic assembly (2), a support assembly (3), and a connector, the connector including a strip or a displacement box (1). The strip or displacement box (1) is used to connect with the building components (11) on both sides of the seismic isolation joint; The telescopic component (2) is set between two symmetrically arranged strips or displacement boxes (1). When the telescopic cover is not subjected to external force, the plane on which the telescopic component (2) is located is a horizontal plane. The two ends of the telescopic component (2) are rotatably connected to the two strips or displacement boxes (1) respectively. When the telescopic cover is subjected to external force, the telescopic component (2) rotates to make its plane an inclined plane or a vertical plane. The telescopic component (2) is capable of telescopic extension and retraction in the length direction of its plane, and rotation or extension and retraction in the width direction; The support assembly (3) is disposed above the telescopic assembly (2), and the support assembly (3) includes a support body (4), a support panel (5), and a support frame (6). The supporting frame (6) is a foldable structure made of multiple thin steel plates hinged together in sequence, with a gap at the hinge of two adjacent thin steel plates. The support (4) is a plastic structure and is constructed as a V-shaped structure, placed in the upward-facing V-shaped groove in the folded structure formed by the support skeleton (6); The support panel (5) is a foldable plate structure along its length; the support panel (5) is disposed on the support (4) and bonded to the support frame (6); The support assembly (3) and the telescopic assembly (2) are connected by a pin (9).

2. The retractable seismic isolation joint cover device according to claim 1, characterized in that, The telescopic assembly (2) includes one or more telescopic mechanisms; When the telescopic component (2) includes a telescopic mechanism, the telescopic mechanism is composed of multiple telescopic units (12), the multiple telescopic units (12) are arranged in parallel in the width direction of the telescopic component (2), and two adjacent telescopic units (12) are hinged to each other in the width direction of the telescopic component (2). When the telescopic assembly (2) includes multiple telescopic mechanisms, each telescopic mechanism includes at least one telescopic unit (12), and in each telescopic mechanism, two adjacent telescopic units (12) are hinged to each other in the width direction of the telescopic assembly (2); The telescopic unit (12) is capable of telescopic extension and contraction in the length direction of its plane, and rotation or extension and contraction in the width direction.

3. The retractable seismic isolation joint cover device according to claim 2, characterized in that, The telescopic unit (12) is composed of several rhomboid units connected in series. Two adjacent rhomboid units are hinged to each other to enable the telescopic unit (12) to extend and retract in its length direction. The four sides of the rhomboid unit are hinged to each other to enable the telescopic unit (12) to extend and retract in its width direction.

4. The retractable seismic isolation joint cover device according to claim 3, characterized in that, The connection between two adjacent rhomboid units is detachable.

5. The retractable seismic isolation joint cover device according to claim 3, characterized in that, The telescopic unit (12) includes several first links (8) and four second links; Several first links (8) are hinged in pairs to form an X-shaped structure. Several X-shaped structures are arranged in a row. The ends of two adjacent X-shaped structures are hinged to each other to form several hinged rhombuses. The two ends of the X-shaped structure at the end are respectively connected to two second links. The ends of the two second links away from the X-shaped structure are hinged to each other, and the hinge is rotatably connected to the strip or displacement box (1).

6. The retractable seismic isolation joint cover device according to claim 5, characterized in that, All hinges are connected by pins (9).

7. The retractable seismic isolation joint cover device according to claim 1, characterized in that, Two symmetrically arranged strips or displacement boxes (1) are provided with two layers of telescopic components (2) from top to bottom, and the two layers of telescopic components (2) are hinged to each other in the height direction.

8. The retractable seismic isolation joint cover device according to claim 1, characterized in that, The displacement box (1) is provided with a sliding shaft joint (10). The two ends of the telescopic component (2) are respectively connected to the sliding shaft joint (10) through the connecting plate (7), or the two ends of the telescopic component (2) are respectively directly welded to the strip through the connecting plate (7). One end of the connecting plate (7) is connected to the telescopic component (2) through the pin (9), and the other end is fixedly connected to the sliding shaft joint (10).

9. A retractable seismic isolation joint cover device according to claim 8, characterized in that, The displacement box (1) is a hollow structure, the sliding shaft joint (10) is fixed inside the displacement box (1), and the side wall of the displacement box (1) is provided with a through groove for the connecting plate (7) to pass through.

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