A two-stage metal shear damper

Abstract

The utility model discloses a double -step metal shearing damper belongs to building damper technical field, it includes bottom plate, the bottom plate top is fixedly connected with a pair of one -step metal sheet, a pair of one -step metal sheet top is fixedly connected with the top plate, the top plate bottom is fixedly connected with a pair of two -step metal sheet, a pair of two -step metal sheet bottom is fixedly connected with the contact plate, the bottom plate top is provided with a plurality of spacers, the bottom plate top is fixedly connected with a pair of limit block and a pair of support respectively. The utility model sets up limit block, support, fixed component and spacer, and the spacer is stacked in the specific area of the bottom plate top, through increasing or reducing the number of spacer, can change the clearance of the contact plate of two -step metal sheet bottom and bottom plate, adapts the start threshold value of two -step metal sheet under different working conditions, promotes energy -consumption efficiency, and limit block cooperates the fixed component on the support and can quickly limit the spacer and fix, prevents the spacer and shifts.

Description

Technical Field

[0001] This utility model belongs to the field of building damper technology, specifically a two-stage metal shear damper. Background Technology

[0002] A two-stage metal shear damper is a type of graded energy dissipation vibration reduction device, commonly used in the seismic design of buildings, bridges, and other structures. Its core consists of first-stage and second-stage metal plates, usually arranged in parallel. It achieves graded yielding energy dissipation through preset stiffness differences. During operation, the first-stage metal plate yields and dissipates energy first during minor earthquakes, while the second-stage metal plate activates during major earthquakes, working together to exert their effects. It features stable hysteretic performance, high energy dissipation efficiency, and good durability, effectively reducing the seismic response of structures and improving safety performance.

[0003] The existing two-stage metal shear dampers still have the following shortcomings: the gap between the second-stage metal plate and the base plate of the existing two-stage metal shear damper is a fixed value that cannot be adjusted, and cannot adapt to the damping requirements under different working conditions. The preset gap may cause the second-stage metal plate to start too early or too late, weakening the energy dissipation effect. Utility Model Content

[0004] To overcome the above-mentioned defects, this utility model provides a two-stage metal shear damper, which solves the problems existing in the current two-stage metal shear damper.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a two-stage metal shear damper, comprising a base plate, a pair of first-stage metal plates fixedly connected to the top of the base plate, a top plate fixedly connected to the top of the pair of first-stage metal plates, a pair of second-stage metal plates fixedly connected to the bottom of the top plate, a contact plate fixedly connected to the bottom of the pair of second-stage metal plates, multiple pads provided on the top of the base plate, a pair of limiting blocks and a pair of brackets fixedly connected to the top of the base plate respectively, an ejection assembly provided between the pair of limiting blocks, and a fixing assembly provided on each of the brackets.

[0006] As a further embodiment of this utility model: the ejection assembly includes a rotating rod, which is rotatably connected between a pair of limiting blocks. A push plate is coaxially fixedly connected to the rotating rod, and a pair of connecting blocks are fixedly connected to one side of the push plate. A handle is fixedly connected between the pair of connecting blocks.

[0007] As a further embodiment of this utility model: the fixing component includes a threaded rod, which is threadedly connected to the corresponding bracket. A knob is coaxially fixedly connected to the top of the threaded rod, and an L-shaped fixing block is rotatably connected to the bottom of the threaded rod. A pair of guide rods are fixedly connected to the top of the L-shaped fixing block, and the top of each guide rod passes through the bracket and is slidably connected to it.

[0008] As a further embodiment of this utility model: the fixing component includes a threaded rod, which is threadedly connected to the corresponding bracket. A knob is coaxially fixedly connected to the top of the threaded rod, and an L-shaped fixing block is rotatably connected to the bottom of the threaded rod. A pair of guide rods are fixedly connected to the top of the L-shaped fixing block, and the top of each guide rod passes through the bracket and is slidably connected to it.

[0009] As a further embodiment of this utility model: a placement block is fixedly connected to the top of the base plate, an installation groove is provided on the placement block, and a magnetic plate is fixedly connected in the installation groove.

[0010] As a further embodiment of this utility model: the push plate is made of low carbon steel, and the pad is made of stainless steel.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This utility model is equipped with a limiting block, a bracket, a fixing component, and a pad. The pad is stacked in a specific area on the top of the base plate. By increasing or decreasing the number of pads, the gap between the contact plate at the bottom of the second-order metal plate and the base plate can be changed to adapt to the starting threshold of the second-order metal plate under different working conditions and improve energy consumption efficiency. The limiting block, together with the fixing component on the bracket, can quickly limit and fix the pad to prevent the pad from shifting.

[0013] This utility model is equipped with a push-out component. When it is necessary to reduce the number of pads, the fixing component is first loosened to release the pads, and then the push-out component can push the stacked pads so that the stacked pads are in an inverted stepped shape, with the edges of each layer of pads staggered, which makes it easy to quickly grab and remove them, greatly reducing the difficulty of operation and shortening the adjustment time. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0016] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 This is a schematic diagram of the ejection component structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the base plate structure of this utility model;

[0019] Figure 6 This is a schematic diagram of the fixing component structure of this utility model;

[0020] Figure 7 For the present utility model Figure 5 Enlarged view of point B in the middle;

[0021] Figure 8 This is a schematic diagram of the placement block structure of this utility model;

[0022] Figure 9 This is a schematic diagram of the pad of this utility model in the pushed-open state.

[0023] In the diagram: 1. Base plate; 2. First-stage metal plate; 3. Top plate; 4. Second-stage metal plate; 5. Contact plate; 6. Pad plate; 7. Limiting block; 8. Bracket; 9. Rotating rod; 10. Push plate; 11. Connecting block; 12. Handle; 13. Threaded rod; 14. L-shaped fixing block; 15. Guide rod; 16. Receiving groove; 17. Reinforcing rod; 18. Placement block; 19. Magnetic plate. Detailed Implementation

[0024] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0025] like Figures 1-9 As shown, this utility model provides a technical solution:

[0026] A two-stage metal shear damper includes a base plate 1, a pair of first-stage metal plates 2 fixedly connected to the top of the base plate 1, a top plate 3 fixedly connected to the top of the pair of first-stage metal plates 2, a pair of second-stage metal plates 4 fixedly connected to the bottom of the top plate 3, a contact plate 5 fixedly connected to the bottom of the pair of second-stage metal plates 4, multiple pads 6 provided on the top of the base plate 1, a pair of limiting blocks 7 and a pair of brackets 8 fixedly connected to the top of the base plate 1 respectively, an ejection component provided between the pair of limiting blocks 7, and a fixing component provided on each bracket 8;

[0027] Specifically, the pads 6 are stacked on a specific area on top of the base plate 1. The height of the stacked pads 6 will not exceed the height of the limiting block 7. By increasing or decreasing the number of pads 6, the gap between the contact plate 5 at the bottom of the second-order metal plate 4 and the base plate 1 can be changed to adapt to the starting threshold of the second-order metal plate 4 under different working conditions and improve energy efficiency. The limiting block 7, together with the fixing component on the bracket 8, can quickly limit and fix the pads 6 to prevent the pads 6 from shifting. When it is necessary to reduce the number of pads 6, the fixing component is first loosened, and then the push component can push the stacked pads 6 so that the stacked pads 6 present an inverted stepped shape, with the edges of each layer of pads 6 staggered, which makes it easy to quickly grab and remove, greatly reducing the difficulty of operation and shortening the adjustment time.

[0028] The ejection assembly includes a rotating rod 9, which is rotatably connected between a pair of limiting blocks 7. A push plate 10 is coaxially fixedly connected to the rotating rod 9. A pair of connecting blocks 11 are fixedly connected to one side of the push plate 10. A handle 12 is fixedly connected between the pair of connecting blocks 11.

[0029] Specifically, the push plate 10 is rotated by the handle 12 and a pair of connecting blocks 11. The push plate 10 drives the rotating rod 9 between a pair of limiting blocks 7. The push plate 10 pushes the stacked pads 6, causing the pads 6 to be in the position shown. Figure 9 The state shown;

[0030] The fixing component includes a threaded rod 13, which is threadedly connected to the corresponding bracket 8. A knob is coaxially fixedly connected to the top of the threaded rod 13, and an L-shaped fixing block 14 is rotatably connected to the bottom of the threaded rod 13. A pair of guide rods 15 are fixedly connected to the top of the L-shaped fixing block 14. The top of each guide rod 15 passes through the bracket 8 and is slidably connected to it.

[0031] Specifically, the L-shaped fixing block 14 consists of two parts: a vertical plate and a horizontal plate. The threaded rod 13 can be rotated and raised by a knob. The threaded rod 13 drives the L-shaped fixing block 14 to rise and fall together. The guide rod 15 slides along the bracket 8. The guide rod 15 can prevent the L-shaped fixing block 14 from rotating. When the horizontal plate of the L-shaped fixing block 14 descends and presses against the pad 6, one side of the vertical plate of the L-shaped fixing block 14 is just in contact with the pad 6. The vertical plate of the L-shaped fixing block 14 can cooperate with the bracket 8 and the limiting block 7 to limit and fix the pad 6. When the horizontal plate of the L-shaped fixing block 14 rises to the limit, the vertical plate of the L-shaped fixing block 14 separates from the pad 6, and there is a sufficient gap between the bottom of the vertical plate of the L-shaped fixing block 14 and the pad 6 for the pad 6 to be put in and taken out.

[0032] A pair of receiving slots 16 are provided on the top of the base plate 1. Each receiving slot 16 is adapted to the corresponding L-shaped fixing block 14. A reinforcing rod 17 is fixedly connected to one side of the bracket 8. One end of the reinforcing rod 17 is fixedly connected to the base plate 1.

[0033] Specifically, the receiving groove 16 allows the vertical plate of the L-shaped fixing block 14 to be inserted. When the pad 6 is completely removed, the bottom of the vertical plate of the L-shaped fixing block 14 contacts the bottom of the receiving groove 16. The reinforcing rod 17 is used to prevent the bracket 8 from bending laterally and to ensure the limiting effect of the fixing component on the pad 6.

[0034] A placement block 18 is fixedly connected to the top of the base plate 1. An installation groove is provided on the placement block 18. A magnetic plate 19 is fixedly connected in the installation groove. The push plate 10 is made of low carbon steel, and the pad plate 6 is made of stainless steel.

[0035] Specifically, when the push plate 10 is placed on the placement block 18, the magnetic plate 19 can magnetically fix the push plate 10 in place. The stainless steel has excellent corrosion resistance, which prevents the gap from changing due to the corrosion of the pad 6.

[0036] The working principle of this utility model is as follows:

[0037] The pad 6 is stacked on a specific area on top of the base plate 1. The stacked height of the pad 6 will not exceed the height of the limit block 7. The threaded rod 13 can be rotated and raised by the knob. The threaded rod 13 drives the L-shaped fixing block 14 to rise and fall together. The guide rod 15 slides along the bracket 8. The guide rod 15 can prevent the L-shaped fixing block 14 from rotating. When the horizontal plate of the L-shaped fixing block 14 descends and presses down on the pad 6, one side of the vertical plate of the L-shaped fixing block 14 is just in contact with the pad 6. The vertical plate of the L-shaped fixing block 14 can cooperate with the bracket 8 and the limit block 7 to limit and fix the pad 6. When the horizontal plate of the L-shaped fixing block 14 rises to the limit, the vertical plate of the L-shaped fixing block 14 separates from the pad 6. There is a sufficient gap between the bottom of the vertical plate of the L-shaped fixing block 14 and the pad 6 for the pad 6 to be put in and taken out. By increasing or decreasing the number of pads 6, the gap between the contact plate 5 at the bottom of the second-stage metal plate 4 and the base plate 1 can be changed to adapt to the starting threshold of the second-stage metal plate 4 under different working conditions and improve energy consumption efficiency.

[0038] When the number of pads 6 needs to be reduced, the push plate 10 is rotated by the handle 12 and a pair of connecting blocks 11. The push plate 10 drives the rotating rod 9 between a pair of limiting blocks 7. The push plate 10 pushes the stacked pads 6 so that the pads 6 are arranged as follows. Figure 9 As shown, the stacked pads 6 are arranged in an inverted stepped shape, with the edges of each layer of pads 6 staggered, making it easy to quickly grab and remove them, greatly reducing the difficulty of operation and shortening the adjustment time.

[0039] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A two-stage metal shear damper, comprising a base plate (1), characterized in that: The bottom plate (1) is fixedly connected to a pair of first-order metal plates (2) at the top, and a top plate (3) is fixedly connected to the top of the pair of first-order metal plates (2). The top plate (3) is fixedly connected to a pair of second-order metal plates (4) at the bottom, and a contact plate (5) is fixedly connected to the bottom of the pair of second-order metal plates (4). The bottom plate (1) is provided with multiple pads (6). The bottom plate (1) is fixedly connected to a pair of limiting blocks (7) and a pair of brackets (8) respectively. An ejection component is provided between the pair of limiting blocks (7), and a fixing component is provided on each bracket (8).

2. The two-stage metal shear damper according to claim 1, characterized in that: The ejection assembly includes a rotating rod (9), which is rotatably connected between a pair of limiting blocks (7). A push plate (10) is coaxially fixedly connected to the rotating rod (9). A pair of connecting blocks (11) are fixedly connected to one side of the push plate (10). A handle (12) is fixedly connected between the pair of connecting blocks (11).

3. A two-stage metal shear damper according to claim 1, characterized in that: The fixing component includes a threaded rod (13), which is threadedly connected to the corresponding bracket (8). A knob is coaxially fixedly connected to the top of the threaded rod (13), and an L-shaped fixing block (14) is rotatably connected to the bottom of the threaded rod (13). A pair of guide rods (15) are fixedly connected to the top of the L-shaped fixing block (14). The top of each guide rod (15) passes through the bracket (8) and is slidably connected to it.

4. A two-stage metal shear damper according to claim 3, characterized in that: The bottom plate (1) has a pair of receiving slots (16) on its top. Each receiving slot (16) is adapted to a corresponding L-shaped fixing block (14). A reinforcing rod (17) is fixedly connected to one side of the bracket (8). One end of the reinforcing rod (17) is fixedly connected to the bottom plate (1).

5. A two-stage metal shear damper according to claim 1, characterized in that: The bottom plate (1) is fixedly connected to the top of a placement block (18), and the placement block (18) has an installation groove, in which a magnetic plate (19) is fixedly connected.

6. A two-stage metal shear damper according to claim 2, characterized in that: The push plate (10) is made of low carbon steel, and the pad plate (6) is made of stainless steel.

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