Displacement damper based on double-order yield section and mounting method thereof

Abstract

The invention relates to the technical field of dampers, in particular to a displacement damper based on a double-step yield section and an installation method thereof.The displacement damper comprises two first installation plates and further comprises a damping assembly, the damping assembly comprises a first core plate symmetrically installed between the two first installation plates, and two first side plates are symmetrically installed on the two sides of the first core plate; a second core plate is fixedly mounted on the side, away from the first core plate, of the first mounting plate, and two second side plates are symmetrically mounted on the two sides of the second core plate; and the connecting assembly is used for installing the damping assembly between two wall bodies. The damper yield section is divided into two sections, the part with the small section yields under small earthquakes, large rigidity can be achieved, the large section also enters the yield stage under large earthquakes, and second-order yield and large design displacement are achieved. And secondly, the connecting assembly is arranged between the node plate and the lug plate, rapid connection is conducted through the locking block on the insertion pipe, the installation distance is adjusted through rotation, and meanwhile disassembly is convenient.

Description

Technical Field

[0001] This invention relates to the field of damper technology, specifically to a displacement damper based on a double-yield section and its installation method. Background Technology

[0002] Building dampers are safety devices installed on buildings to mitigate earthquake damage. They are widely used in civil buildings, industrial buildings, and bridges. When an earthquake occurs, the damping wall absorbs and dissipates the impact energy of the earthquake on the building structure to the maximum extent, greatly mitigating the impact and damage of the earthquake on the building structure.

[0003] However, the installation of existing building dampers still has many defects. For example, the existing displacement dampers are connected to the embedded parts by welding, which makes it more troublesome to replace the dampers after an earthquake. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a displacement damper based on a double-yield section and its installation method, which can effectively solve the problem that the damper in the existing technology is not easy to replace.

[0005] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a displacement damper based on a double-yield section, comprising two first mounting plates, and further comprising: The damping assembly includes a first core plate symmetrically installed between two first mounting plates, two first side plates symmetrically installed on both sides of the first core plate, and the upper and lower sides of the first side plates are respectively fixedly connected to the two first mounting plates. A second core plate is fixedly installed on the side of the first mounting plate away from the first core plate, two second side plates are symmetrically installed on both sides of the second core plate, and a second mounting plate is fixedly installed on the top wall of the second core plate. A connecting assembly for mounting the damping assembly between two walls.

[0006] Furthermore, node plates are installed on the outer walls of the first and second mounting plates, which are far apart, on the side away from each other. Ear plates are rotatably connected to both node plates, and fixed plates are fixedly installed on the ear plates. Embedded parts are provided on the fixed plates.

[0007] Furthermore, the first mounting plate is larger than the second mounting plate, and the first core plate, the second core plate, the first side plate, and the second side plate are all made of shape memory metal.

[0008] Furthermore, the first core plate and the two first side plates form an I-shape, and the second core plate and the two second side plates form an I-shape.

[0009] Furthermore, the connecting assembly includes a first mounting hole on the node plate and a second mounting hole on the ear plate. A tube is inserted between the first and second mounting holes. Multiple locking holes are provided on the side wall of the tube. A locking block is slidably installed in each locking hole, and a return spring is provided at the sliding connection. The locking block extends out of the locking hole to make the node plate and the ear plate stick together.

[0010] Furthermore, a disc is fixedly installed on the inner wall of the insertion tube, and a telescopic rod is rotatably installed on the disc. A transmission frame is fixedly installed on one end of the telescopic rod near the locking block. The locking block is pushed out of the locking hole by rotating the transmission frame.

[0011] Furthermore, a fixed cover is movably installed at the end of the insertion tube away from the locking block, and an external threaded tube is rotatably inserted through the fixed cover. The inner wall of the insertion tube is provided with an internal thread that matches the external threaded tube, and a first turntable is fixedly installed on the external threaded tube.

[0012] Furthermore, a rotating rod is fixedly installed at the end of the telescopic rod away from the transmission frame. The rotating rod rotates through the first turntable, and a second turntable is fixedly installed at the end of the rotating rod.

[0013] Furthermore, the inner diameter of the first mounting hole is larger than the outer diameter of the insertion tube, and multiple auxiliary strips are slidably installed at equal intervals on the outer wall of the insertion tube. Multiple buffer pieces are provided between two adjacent auxiliary strips, and multiple extrusion strips are fixedly installed at equal intervals on the inner wall of the first mounting hole.

[0014] An installation method for a displacement damper based on a double-yield section includes the following steps: S1: Align the first mounting holes on the two node plates and the second mounting holes on the two ear plates one by one, and insert the two tubes through the two first mounting holes and through the second mounting holes respectively; S2: Rotate the second turntable, which drives the transmission frame to rotate through the rotating rod and the telescopic rod. The transmission frame simultaneously squeezes multiple locking blocks out of the locking holes, and the locking blocks are attached to the outer wall of the ear plate. S3: Then rotate the first turntable to drive the external threaded tube to rotate, and make the insertion tube and the fixed cover slide relative to each other through the thread transmission. Adjust the distance between the locking block and the fixed cover, and clamp the node plate and the ear plate through the locking block and the fixed cover.

[0015] The technical solution provided by this invention has the following advantages compared with the known prior art: The damper has two yielding sections. The smaller section yields under minor earthquakes, achieving relatively high stiffness. Under major earthquakes, the larger section also enters the yielding stage, achieving second-order yielding and relatively large design displacement. Secondly, a connecting component is set between the node plate and the ear plate, which is quickly connected using the locking block on the insertion tube. The installation distance is adjusted by rotation, and disassembly is also convenient. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an overall schematic diagram of the present invention; Figure 2 This is a cross-sectional view of the connecting component section; Figure 3 for Figure 2 Enlarged view of the structure of part A in the middle; Figure 4 This is a structural diagram of the connecting component. Figure 5 This is a structural schematic diagram of the locking block and transmission frame. Figure 6 This is a schematic diagram of the damper being installed on the wall via a node plate and a lug plate. Figure 7 This is a schematic diagram of a damper being installed directly on a wall.

[0018] The labels in the diagram represent: 1. First core plate; 2. First mounting plate; 3. First side plate; 4. Second core plate; 5. Second side plate; 6. Second mounting plate; 7. Node plate; 8. Ear plate; 9. Fixing plate; 10. Embedded part; 11. Inserted tube; 12. Fixing cover; 13. External threaded tube; 14. First turntable; 15. Rotating rod; 16. Telescopic rod; 17. Disc; 18. Transmission frame; 19. Locking block; 20. Second turntable; 21. Auxiliary strip; 22. Buffer plate. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are all within the scope of protection of the present invention.

[0020] The present invention will be further described below in conjunction with embodiments.

[0021] Embodiment 1: Refer to Figure 1 , a displacement damper based on a two-stage yield section, comprising two first mounting plates 2, and further comprising a damping component, including a first core plate 1 symmetrically mounted between the two first mounting plates 2, two first side plates 3 symmetrically mounted on both sides of the first core plate 1, and the upper and lower sides of the first side plates 3 are respectively fixedly connected to the two first mounting plates 2. A second core plate 4 is fixedly mounted on the side of the first mounting plate 2 away from the first core plate 1, two second side plates 5 are symmetrically mounted on both sides of the second core plate 4, a second mounting plate 6 is fixedly mounted on the top wall of the second core plate 4, the size of the first mounting plate 2 is larger than that of the second mounting plate 6, the first core plate 1, the second core plate 4, the first side plates 3 and the second side plates 5 are all made of shape memory metal, the first core plate 1 and the two first side plates 3 form an I-shaped structure, and the second core plate 4 and the two second side plates 5 form an I-shaped structure.

[0022] The appearance of the above damper product is as shown in Figure 1 and Figure 6 . The overall shape is like a "Lv" character. The yield section of the damper has two segments. The part with a smaller cross-section yields under small earthquakes, achieving a relatively large stiffness. Under large earthquakes, the larger cross-section also enters the yield stage, realizing second-order yield and a relatively large design displacement. When vibrations occur, the first core plate 1, the second core plate 4, the first side plates 3 and the second side plates 5 all deform, and the shape memory metal can self-recover, having good seismic damping capacity.

[0023] Embodiment 2: Refer to Figure 2 , and a connection component for installing the damping component between two walls is further provided. It includes two nodal plates 7 mounted on the outer walls of the sides of the first mounting plate 2 and the second mounting plate 6 that are far away from each other. Two ear plates 8 are rotatably connected to the two nodal plates 7, a fixing plate 9 is fixedly mounted on the ear plates 8, and an embedded part 10 is provided on the fixing plate 9. The connection component includes a first mounting hole opened on the nodal plate 7, a second mounting hole opened on the ear plate 8, a plug tube 11 is commonly inserted between the first mounting hole and the second mounting hole, a plurality of locking holes are opened on the side wall of the plug tube 11, a locking block 19 is slidably mounted in each locking hole, and a return spring is provided at the sliding connection. The nodal plate 7 and the ear plate 8 are pressed together by the locking block 19 extending out of the locking hole. A disc 17 is fixedly mounted on the inner wall of the plug tube 11, a telescopic rod 16 is rotatably mounted on the disc 17, and a transmission frame 18 is fixedly mounted at one end of the telescopic rod 16 close to the locking block 19. The locking block 19 is extruded to extend out of the locking hole by rotating the transmission frame 18.

[0024] A fixed cover 12 is movably mounted on the end of the insertion tube 11 away from the locking block 19. An externally threaded tube 13 rotatably passes through the fixed cover 12. The inner wall of the insertion tube 11 has an internal thread that matches the externally threaded tube 13. A first turntable 14 is fixedly mounted on the externally threaded tube 13. A rotating rod 15 is fixedly mounted on the end of the telescopic rod 16 away from the transmission frame 18. The rotating rod 15 rotatably passes through the first turntable 14, and a second turntable 20 is fixedly mounted on the end of the rotating rod 15. The inner diameter of the first mounting hole is larger than the outer diameter of the insertion tube 11. Multiple auxiliary strips 21 are slidably mounted at equal intervals on the outer wall of the insertion tube 11. Multiple buffer plates 22 are provided between the two auxiliary strips 21. Multiple compression strips are fixedly installed at equal intervals on the inner wall of the first mounting hole. After the insertion tube 11 is inserted into the first mounting hole, the compression strip is placed on the side of the auxiliary strip 21. After vibration occurs, the ear plate 8 and the node plate 7 rotate relative to each other. The relative rotation between the insertion tube 11 and the node plate 7 causes the compression strip to compress the auxiliary strip 21 under such rotation. The auxiliary strip 21 compresses the buffer plate 22. The buffer plate 22 is also a memory metal sheet with a wavy surface that can be compressed and has a certain elasticity, which can further improve the shock resistance effect.

[0025] To facilitate the installation of the damper between the two walls, the node plate 7 and the ear plate 8 are connected by a pin connection. Specifically: S1: Align the first mounting holes on the two node plates 7 and the second mounting holes on the two ear plates 8 one by one, and insert the two tubes 11 from the two first mounting holes and through the second mounting holes respectively. S2: Rotate the second turntable 20, which in turn drives the transmission frame 18 to rotate via the rotating rod 15 and the telescopic rod 16. Figure 5 As shown, the transmission frame 18 is provided with multiple protrusions. During the rotation of the transmission frame 18, multiple locking blocks 19 can be squeezed out of the locking holes at the same time. The locking blocks 19 are slidably mounted on the disc 17, and a return spring is provided at the sliding connection. After the locking blocks 19 extend out of the locking holes, the locking blocks 19 are attached to the outer wall of the ear plate 8. The outer diameter of the fixing cover 12 is larger than the inner diameter of the first mounting hole. That is, the node plate 7 and the ear plate 8 can be limited by the fixing cover 12 and the locking blocks 19. S3: Then rotate the first turntable 14 to drive the external threaded tube 13 to rotate. Through the threaded transmission, the insertion tube 11 and the fixed cover 12 will slide relative to each other. Adjust the distance between the locking block 19 and the fixed cover 12, and clamp the node plate 7 and the ear plate 8 through the locking block 19 and the fixed cover 12.

[0026] When the damper needs to be replaced, rotate the first turntable 14 in the opposite direction to widen the gap between the fixing cover 12 and the locking block 19, then rotate the second turntable 20 in the opposite direction to stop pressing the locking block 19. The locking block 19 retracts into the locking hole, and the insertion tube 11 can be pulled out. The gap between the fixing cover 12 and the locking block 19 is adjustable to accommodate node plates 7 and ear plates 8 of different thicknesses.

[0027] Example 3: The damper is rotated 90 degrees and directly connected to the embedded part, which is a shear connection. The specific connection method can be welding. When replacement is needed, the damper can be removed by external tapping and then replaced with a new damper.

[0028] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A displacement damper based on a double-yield section, comprising two first mounting plates (2), characterized in that, Also includes: The damping assembly includes a first core plate (1) symmetrically installed between two first mounting plates (2), two first side plates (3) symmetrically installed on both sides of the first core plate (1), and the upper and lower sides of the first side plates (3) are respectively fixedly connected to the two first mounting plates (2). A second core plate (4) is fixedly installed on the side of the first mounting plate (2) away from the first core plate (1). Two second side plates (5) are symmetrically installed on both sides of the second core plate (4). A second mounting plate (6) is fixedly installed on the top wall of the second core plate (4). A connecting assembly for mounting the damping assembly between two walls.

2. A displacement damper based on a double-yield section according to claim 1, characterized in that, Node plates (7) are installed on the outer walls of the first mounting plate (2) and the second mounting plate (6) which are far apart. Ear plates (8) are rotatably connected to the two node plates (7). A fixing plate (9) is fixedly installed on the ear plate (8). An embedded part (10) is provided on the fixing plate (9).

3. A displacement damper based on a double-yield section according to claim 2, characterized in that, The first mounting plate (2) is larger than the second mounting plate (6). The first core plate (1), the second core plate (4), the first side plate (3), and the second side plate (5) are all made of shape memory metal.

4. A displacement damper based on a double-yield section according to claim 3, characterized in that, The first core plate (1) and two first side plates (3) form an I-shape, and the second core plate (4) and two second side plates (5) form an I-shape.

5. A displacement damper based on a double-yield section according to claim 4, characterized in that, The connecting assembly includes a first mounting hole on the node plate (7) and a second mounting hole on the ear plate (8). A tube (11) is inserted between the first mounting hole and the second mounting hole. Multiple locking holes are provided on the side wall of the tube (11). A locking block (19) is slidably installed in each locking hole. A return spring is provided at the sliding connection. The node plate (7) and the ear plate (8) are attached together by the locking block (19) extending out of the locking hole.

6. A displacement damper based on a double-yield section according to claim 5, characterized in that, A disc (17) is fixedly installed on the inner wall of the insertion tube (11). A telescopic rod (16) is rotatably installed on the disc (17). A transmission frame (18) is fixedly installed on one end of the telescopic rod (16) near the locking block (19). By rotating the transmission frame (18), the locking block (19) is squeezed out of the locking hole.

7. A displacement damper based on a double-yield section according to claim 6, characterized in that, A fixed cover (12) is movably installed at the end of the insertion tube (11) away from the locking block (19). An external threaded tube (13) is rotatably inserted through the fixed cover (12), and an internal thread that matches the external threaded tube (13) is provided on the inner wall of the insertion tube (11). A first turntable (14) is fixedly installed on the external threaded tube (13).

8. A displacement damper based on a double-yield section according to claim 7, characterized in that, A rotating rod (15) is fixedly installed at the end of the telescopic rod (16) away from the transmission frame (18). The rotating rod (15) rotates through the first turntable (14), and a second turntable (20) is fixedly installed at the end of the rotating rod (15).

9. A displacement damper based on a double-yield section according to claim 8, characterized in that, The inner diameter of the first mounting hole is larger than the outer diameter of the insertion tube (11). Multiple auxiliary strips (21) are slidably installed at equal distances on the outer wall of the insertion tube (11). Multiple buffer pieces (22) are provided between two adjacent auxiliary strips (21). Multiple extrusion strips are fixedly installed at equal distances on the inner wall of the first mounting hole.

10. An installation method applicable to the displacement damper based on a double-yield section as described in claim 9, characterized in that, Includes the following steps: S1: Align the first mounting holes on the two node plates (7) and the second mounting holes on the two ear plates (8) one by one, and insert the two tubes (11) through the two first mounting holes and through the second mounting holes respectively; S2: Rotate the second turntable (20), and drive the transmission frame (18) to rotate through the rotating rod (15) and the telescopic rod (16). At the same time, the transmission frame (18) squeezes multiple locking blocks (19) out of the locking holes, and the locking blocks (19) stick to the outer wall of the ear plate (8). S3: Then rotate the first turntable (14) to drive the external threaded tube (13) to rotate. Through the threaded transmission, the insertion tube (11) and the fixed cover (12) will slide relative to each other. Adjust the distance between the locking block (19) and the fixed cover (12) to clamp the node plate (7) and the ear plate (8) through the locking block (19) and the fixed cover (12).

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