A combined damper

Abstract

The present invention discloses a combined damper, comprising: a damper body, the damper body comprising an upper steel plate, a lower steel plate, and a combined damping mechanism, the combined damping mechanism being installed between the upper steel plate and the lower steel plate, the combined damping mechanism comprising a shape memory alloy outer ring and a mild steel inner ring, and the mild steel inner ring being installed inside the shape memory alloy outer ring. When an earthquake causes a horizontal displacement of the bridge body and the bridge, the shape memory alloy outer ring and the mild steel inner ring are arranged, and the mild steel inner ring is arranged inside the shape memory alloy outer ring. The plastic deformation of the mild steel inner ring itself may cause residual displacement of the structure, thereby affecting the post-earthquake function and post-earthquake recovery of the structure. The shape memory alloy outer ring can limit the residual deformation of the mild steel inner ring under strong earthquake action, thereby improving the self-resetting ability of the damper and the seismic toughness of the structure. The present invention can dissipate earthquake energy in stages and provide a self-resetting function, thereby limiting the horizontal displacement of the bridge structure and improving the ability of the bridge structure to resist earthquakes.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge dampers, and more particularly to a combined damper. Background Art

[0002] my country is located between the Pacific Rim and the Eurasian Seismic Belt. Most of the country is seismically active, especially in western my country, where strong earthquakes are common and seismic activity is frequent. In 2015, my country released the next-generation "China Earthquake Motion Parameter Zoning Map" (GB 18306-2015), which sets higher seismic fortification standards for most regions. This demonstrates the country's increased emphasis on earthquake fortification and disaster prevention and mitigation, and places higher demands on the seismic performance of engineering structures. Dampers are flexible and widely applicable in the seismic protection of engineering structures, making them a relatively reasonable method for improving seismic performance. Metal dampers are considered one of the most effective energy dissipation devices. While conventional metal dampers have good energy dissipation and vibration reduction capabilities, their inherent plastic deformation can cause residual displacement in the structure, which in turn affects the structure's post-earthquake function and recovery. Therefore, it is necessary to propose a combined damper to at least partially address the problems existing in the existing technology. Summary of the Invention

[0003] The Summary of the Invention introduces a series of simplified concepts that will be further explained in the Detailed Description of the Invention. The Summary of the Invention does not intend to define the key features and essential technical features of the claimed technical solution, nor does it intend to determine the scope of protection of the claimed technical solution.

[0004] In order to at least partially solve the above problems, the present invention provides a combined damper, comprising: a damper body, the damper body comprising an upper steel plate, a lower steel plate, and a combined damping mechanism, the combined damping mechanism being arranged between the upper steel plate and the lower steel plate, the combined damping mechanism comprising a shape memory alloy outer ring and a mild steel inner ring, the mild steel inner ring being arranged inside the shape memory alloy outer ring.

[0005] According to the combined damper of an embodiment of the present invention, a first reciprocating mechanism is arranged between the upper steel plate and the shape memory alloy outer ring, and the first reciprocating mechanism includes a first upper concave block and a second upper concave block. The first upper concave block is arranged at the bottom of the upper steel plate, and the second upper concave block is arranged at the outer top of the shape memory alloy outer ring. The second upper concave block is located inside the first upper concave block.

[0006] According to the combined damper of an embodiment of the present invention, a second reciprocating mechanism is arranged between the shape memory alloy outer ring and the mild steel inner ring. The second reciprocating mechanism includes a third upper concave block and a fourth upper concave block. The third upper concave block is arranged on the inner top of the shape memory alloy outer ring, and the fourth upper concave block is arranged on the outer top of the mild steel inner ring. The fourth upper concave block is located inside the third upper concave block.

[0007] According to the combined damper of an embodiment of the present invention, the bottom of the shape memory alloy outer ring has a first opening, the bottom of the mild steel inner ring has a second opening, the second opening corresponds to the first opening, and the end of the shape memory alloy outer ring is fixedly connected to the end of the mild steel inner ring.

[0008] According to the combined damper of an embodiment of the present invention, it also includes: an auxiliary reset mechanism, which includes a plurality of first vertical rods, a plurality of second vertical rods, and a reset disk group. The plurality of first vertical rods are all arranged at the bottom of the upper steel plate and are located around the first upper concave block. The plurality of second vertical rods are all arranged at the bottom of the lower steel plate and are located around the first upper concave block. The reset disk group is sleeved on the outside of the first upper concave block through a plurality of horizontal support rods and is respectively connected to the plurality of first vertical rods and the plurality of second vertical rods. A plurality of moving bead modules are arranged in the circumferential cavity of the reset disk group.

[0009] According to the combined damper of an embodiment of the present invention, the reset disk group includes a first circumferential ring disk and a second circumferential ring disk, the first circumferential ring disk is sleeved on the outside of the first upper concave block through a plurality of horizontal support rods, the second circumferential ring disk is docked at the bottom of the first circumferential ring disk, the first circumferential ring disk is connected to a plurality of first vertical rods, the second circumferential ring disk is connected to a plurality of second vertical rods, and the first circumferential ring disk and the second circumferential ring disk are movably connected.

[0010] According to the combined damper of an embodiment of the present invention, a first circumferential groove is provided at the bottom of the first circumferential ring disk, a second circumferential groove is provided at the top of the second circumferential ring disk, the second circumferential groove is located inside the first circumferential ring disk, a plurality of composite telescopic parts are provided between the inner wall of the first circumferential ring disk and the outer wall of the second circumferential ring disk, and a plurality of the movable bead modules are evenly distributed in the first circumferential groove.

[0011] According to the combined damper of an embodiment of the present invention, the moving bead module includes an upper fixed seat plate, an upper outer cover, a lower outer cover, an inner moving bead, an outer clamping sleeve and a displacement monitoring cover. The upper fixed seat plate is arranged on the inner top wall of the circumferential cavity, the upper outer cover is arranged at the bottom of the upper fixed seat plate, the lower outer cover is arranged at the bottom of the upper outer cover through the outer clamping sleeve, the upper outer cover has an accommodating cavity, the inner moving bead is arranged in the accommodating cavity and extends out of the lower outer cover, and the displacement monitoring cover is arranged above the upper outer cover and below the upper fixed seat plate.

[0012] According to the combined damper of an embodiment of the present invention, the bottom of the upper outer cover is provided with a first circumferential outer eaves, the upper end of the lower outer cover is provided with a second circumferential outer eaves, a first circumferential leakage-proof pad is provided between the first circumferential outer eaves and the second circumferential outer eaves, the bottom of the lower outer cover is provided with a circumferential inner support eaves, and a second circumferential leakage-proof pad is provided on the inner wall of the circumferential inner support eaves, a cross-shaped inner groove is provided on the inner wall of the upper outer cover, and an arc-shaped blind groove corresponding to the cross-shaped inner groove is provided on the inner wall of the lower outer cover, a plurality of auxiliary inner beads are provided in the cross-shaped inner groove and the arc-shaped blind groove, and the plurality of auxiliary inner beads are slidably connected with the inner moving beads, and the cross-shaped inner groove and the arc-shaped blind groove are also provided with anti-rust paste wrapping the auxiliary inner beads, and the bottom of the lower outer cover is provided with a circumferential leakage-proof disc seat, and an inner leakage-proof wear-resistant pad is provided in the circumferential leakage-proof disc seat.

[0013] According to the combined damper of an embodiment of the present invention, a plurality of elastic inner support frames are provided in the displacement monitoring cover, and the plurality of elastic inner support frames are sleeved on the upper extension tube of the upper outer cover body. A plurality of inner fixing holes are provided on the displacement monitoring cover, and an inner fixing block is provided in the inner fixing hole. A displacement monitoring module is provided at the lower end of the inner fixing block. The displacement monitoring module is passed through the displacement detection hole of the upper outer cover body. The displacement monitoring module includes a displacement sensor and a control support rod portion. The displacement sensor is provided at the lower end of the control support rod portion and moves the bead inward.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects:

[0015] The present invention provides a combined damper, which includes a damper body, which includes an upper steel plate, a lower steel plate, and a combined damping mechanism. The upper steel plate is connected to the bottom of the bridge body, and the lower steel plate is fixed to the upper end of the bridge. The combined damping mechanism is installed between the upper and lower steel plates. The combined damping mechanism includes a shape memory alloy outer ring and a mild steel inner ring. The shape memory alloy outer ring is installed between the upper and lower steel plates, and the mild steel inner ring is installed inside the shape memory alloy outer ring. Therefore, after an earthquake, the bridge body and the bridge are horizontally displaced. Due to the arrangement of the shape memory alloy outer ring and the mild steel inner ring, a mild steel inner ring is arranged inside the shape memory alloy outer ring. The plastic deformation of the mild steel inner ring itself may cause residual displacement of the structure, thereby affecting the post-earthquake function and post-earthquake recovery of the structure. Therefore, the shape memory alloy outer ring can limit the residual deformation of the mild steel inner ring under strong earthquake action, thereby improving the self-resetting ability of the damper and the seismic toughness of the structure. Therefore, the present invention can dissipate earthquake energy in stages and provide a self-resetting function, thereby limiting the horizontal displacement of the bridge structure and improving the ability of the bridge structure to resist earthquakes.

[0016] The combined damper of the present invention and other advantages, objectives and features of the present invention will be reflected in part through the following description, and will also be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

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

[0019] Figure 2 It is the structural front view of the present invention.

[0020] Figure 3 It is a structural schematic diagram of the auxiliary reset mechanism in the present invention.

[0021] Figure 4 Schematic diagram of the internal structure of the auxiliary reset mechanism in the present invention.

[0022] Figure 5 It is a top view of the structure of the composite telescopic member in the present invention.

[0023] Figure 6 It is a structural diagram of the movable bead module in the present invention.

[0024] Figure 7 Schematic diagram of part of the internal structure of the movable bead module in the present invention.

[0025] Figure 8 This is a front view of the internal structure of the movable bead module in the present invention.

[0026] Figure 9 It is a structural schematic diagram of the upper outer cover in the present invention.

[0027] Figure 10 Schematic diagram of the internal structure of the upper outer cover in the present invention.

[0028] Figure 11 It is a structural schematic diagram of the lower outer cover in the present invention.

[0029] Figure 12 It is a structural schematic diagram of the displacement monitoring cover in the present invention.

[0030] Figure 13 It is a structural diagram of the displacement monitoring module in the present invention. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the description.

[0032] It should be understood that terms such as “having”, “including” and “comprising” used herein do not preclude the existence or addition of one or more other elements or combinations thereof.

[0033] like Figure 1-Figure 2 As shown, the present invention provides a combined damper, comprising: a damper body 100, wherein the damper body 100 is installed between the bridge body and the bridge, and supports the bridge body on the bridge, wherein the damper body 100 comprises an upper steel plate 1, a lower steel plate 2, and a combined damping mechanism 3, specifically, the upper steel plate 1 is connected to the bottom of the bridge body, the lower steel plate 2 is fixed on the upper end of the bridge, and the combined damping mechanism 3 is installed between the upper steel plate 1 and the lower steel plate 2, and the combined damping mechanism 3 comprises a shape memory alloy outer ring 31 and a mild steel inner ring 32, wherein the shape memory alloy outer ring 31 is installed between the upper steel plate 1 and the lower steel plate 2, and the mild steel inner ring 32 is installed on the shape memory alloy. The shape memory alloy outer ring 31 is inside, so after an earthquake, the bridge body and the bridge will undergo horizontal displacement. Due to the arrangement of the above-mentioned shape memory alloy outer ring 31 and the mild steel inner ring 32, a mild steel inner ring 32 is arranged inside the shape memory alloy outer ring 31. The plastic deformation of the mild steel inner ring 32 itself may cause residual displacement of the structure, thereby affecting the post-earthquake function and post-earthquake recovery of the structure. Therefore, the shape memory alloy outer ring 31 can limit the residual deformation of the mild steel inner ring 32 under strong earthquakes, thereby improving the self-resetting ability of the damper and the seismic toughness of the structure. Therefore, the present invention can dissipate earthquake energy in stages and provide a self-resetting function, thereby limiting the horizontal displacement of the bridge structure and improving the ability of the bridge structure to resist earthquakes.

[0034] Furthermore, in some embodiments of the present invention, a first reciprocating mechanism 33 is installed between the upper steel plate 1 and the shape memory alloy outer ring 31. Specifically, the first reciprocating mechanism 33 of the structure includes a first upper concave block 331 and a second upper concave block 332. Here, the first upper concave block 331 is installed at the bottom of the upper steel plate 1, and the second upper concave block 332 is installed at the outer top of the shape memory alloy outer ring 31. The second upper concave block 332 is located inside the first upper concave block 331, and there is a horizontal left-right gap between the second upper concave block 332 and the first upper concave block 331.

[0035] Therefore, when an earthquake causes the bridge body and the bridge to be horizontally displaced, the upper steel plate 1 tends to move left and right in the horizontal direction, and then the first upper concave block 331 can move left and right relative to the second upper concave block 332. Due to the design of the above-mentioned shape memory alloy outer ring 31, the second upper concave block 332 prevents the first upper concave block 331 from moving left and right, so that the shape memory alloy outer ring 31 can resist the earthquake for the bridge body.

[0036] Furthermore, in some embodiments of the present invention, a second reciprocating mechanism 34 is installed between the shape memory alloy outer ring 31 and the mild steel inner ring 32. The second reciprocating mechanism 34 includes a third upper concave block 341 and a fourth upper concave block 342. Specifically, the third upper concave block 341 is installed on the inner top of the shape memory alloy outer ring 31, while the fourth upper concave block 342 is installed on the outer top of the mild steel inner ring 32. The fourth upper concave block 342 is located inside the third upper concave block 341, and a horizontal gap is also formed between the fourth upper concave block 342 and the third upper concave block 341.

[0037] Therefore, after an earthquake, the bridge body and the bridge undergo horizontal displacement. Under the action of the upper steel plate 1, the shape memory alloy outer ring 31 also has a tendency to move left and right. Since the soft steel inner ring 32 is located inside the shape memory alloy outer ring 31, it also has a tendency to resist left and right movement of the shape memory alloy outer ring 31. That is, the fourth upper concave block 342 will further prevent the left and right movement of the third upper concave block 341, so that the shape memory alloy outer ring 31 resists the earthquake for the bridge body, and the shape memory alloy outer ring 31 can limit the residual deformation of the soft steel inner ring 32 under the action of strong earthquakes, thereby improving the self-resetting ability of the damper and the seismic toughness of the structure. Therefore, the present invention can dissipate earthquake energy in stages and provide a self-resetting function, thereby limiting the horizontal displacement of the bridge structure and improving the ability of the bridge structure to resist earthquakes.

[0038] Furthermore, in some embodiments of the present invention, the bottom of the shape memory alloy outer ring 31 has a first opening 310, and the bottom of the mild steel inner ring 32 has a second opening 320, which corresponds to the first opening 310. The ends of the shape memory alloy outer ring 31 and the mild steel inner ring 32 are fixedly connected by fasteners 321 (screws and nuts). By designing the first opening 310 and second opening 320 on the shape memory alloy outer ring 31 and the mild steel inner ring 32, respectively, both can be installed at the upper end of the bridge.

[0039] like Figure 3-Figure 4 As shown, further, in order to further increase the seismic reset capability of the damper body 100, some embodiments of the present invention provide a specific structure of an auxiliary reset mechanism 4, which is installed around the damper body 100 to support the first upper recessed block 331 in the damper body 100 in the horizontal direction. In this way, even if the bridge body has a tendency to move left and right relative to the bridge after an earthquake, the auxiliary reset mechanism 4 provides corresponding support to the first upper recessed block 331, and is used in conjunction with the designed combined damping mechanism 3, which greatly improves the seismic effect of the combined damping mechanism 3, thereby limiting the horizontal displacement of the bridge structure and improving the ability of the bridge structure to resist earthquakes.

[0040] Specifically, the auxiliary reset mechanism 4 includes a plurality of first vertical rods 41, a plurality of second vertical rods 42, and a reset disk group 43. Here, the plurality of first vertical rods 41 are installed at the bottom of the upper steel plate 1 and are located around the first upper concave block 331. The plurality of second vertical rods 42 are installed at the bottom of the lower steel plate 2 and are located around the first upper concave block 331. The reset disk group 43 is sleeved on the outside of the first upper concave block 331 through a plurality of horizontal support rods 430, and is respectively connected to the plurality of first vertical rods 41 and the plurality of second vertical rods 42. Further, a plurality of movable rods are provided in the circumferential cavity of the reset disk group 43. The movable ball module 47 makes the reset disk assembly 43 located between the first vertical rod 41 and the second vertical rod 42. Therefore, when the first upper concave block 331 moves left and right, the reset disk assembly 43 is also driven to move left and right. Due to the reset disk assembly 43's own resistance to earthquakes, the movement of the first upper concave block 331 can be offset, and the left and right movement stroke of the first upper concave block 331 can be reduced, so that the corresponding stroke of the shape memory alloy outer ring 31 is also reduced, thereby improving the ability to limit the residual deformation of the mild steel inner ring 32 under strong earthquakes, and improving the self-resetting ability of the damper and the seismic toughness of the structure.

[0041] Furthermore, the above-mentioned reset disk group 43 includes a first circumferential ring disk 44 and a second circumferential ring disk 45, and the first circumferential ring disk 44 is sleeved on the outside of the first upper recess 331 through a plurality of horizontal support rods 430, wherein the second circumferential ring disk 45 is docked at the bottom of the first circumferential ring disk 44, the first circumferential ring disk 44 is connected to a plurality of first vertical rods 41, and the second circumferential ring disk 45 is connected to a plurality of second vertical rods 42, thereby movably connecting the first circumferential ring disk 44 and the second circumferential ring disk 45. Therefore, when the first circumferential ring disk 44 and the bridge body move left and right synchronously in the horizontal direction, the second circumferential ring disk 45 does not move left and right. Therefore, the second circumferential ring disk 45 has a blocking effect on the left and right movement of the first circumferential ring disk 44, thereby reducing the left and right movement stroke of the first upper recess 331.

[0042] Furthermore, a first circumferential groove 441 is provided at the bottom of the above-mentioned first circumferential ring disk 44, and a second circumferential groove 451 is provided at the top of the second circumferential ring disk 45, and the second circumferential groove 451 is docked in the first circumferential ring disk 44, and a moving bead module 47 is installed in the first circumferential groove 441, so the first circumferential groove 441 can move left and right in the second circumferential groove 451 through the above-mentioned moving bead module 47, and a plurality of composite telescopic parts 46 are installed between the inner wall of the first circumferential ring disk 44 and the outer wall of the second circumferential ring disk 45, and the plurality of composite telescopic parts 46 are used to limit the horizontal travel of the first circumferential ring disk 44 when it moves left and right, thereby playing a role in resisting earthquakes.

[0043] like Figure 5As shown, further, the above-mentioned composite telescopic member 46 includes a reset cylinder 461, a reset rod 462 and a reset spring 463. Here, the reset cylinder 461 is installed on the inner wall of the first circumferential groove 441, the reset rod 462 is installed on the outer wall of the second circumferential ring disk 45, and one end of the reset rod 462 extends into the reset cylinder 461. Here, the reset spring 463 is sleeved on the reset cylinder 461 and the reset rod 462, and abuts between the first circumferential groove 441 and the second circumferential ring disk 45. Therefore, when the first upper concave block 331 moves left and right, the first circumferential ring disk 44 can also be driven to move left and right, so that the composite telescopic members 46 on the left and right sides are After being squeezed accordingly, the reset rod 462 moves into the reset cylinder 461, thereby squeezing the reset spring 463. In this way, the reset spring 463 can provide elastic force for the first circumferential ring disk 44 to offset the left and right movement stroke of the first circumferential ring disk 44, thereby reducing the left and right movement stroke of the first upper recessed block 331, so that the shape memory alloy outer ring 31 can limit the residual deformation of the mild steel inner ring 32 under the action of strong earthquakes, thereby improving the self-resetting ability of the damper and the seismic toughness of the structure. Therefore, the present invention can dissipate earthquake energy in stages and provide a self-resetting function, thereby limiting the horizontal displacement of the bridge structure and improving the ability of the bridge structure to resist earthquakes.

[0044] like Figure 4 、 Figures 6-11As shown, further, some embodiments of the present invention provide a specific structure of the above-mentioned moving bead module 47, which provides a moving assist between the first circumferential ring disk 44 and the second circumferential ring disk 45, so that the two can move relative to each other to resist the vibration of the earthquake. Specifically, the moving bead module 47 includes an upper fixed seat plate 471, an upper outer cover 472, a lower outer cover 473, an inner moving bead 474, an outer clamping sleeve 475 and a positioning The monitoring cover 476 is moved. Here, the upper fixed seat plate 471 is installed on the inner top wall of the above-mentioned circumferential cavity. It can be understood that since the first circumferential groove 441 and the second circumferential groove 451 are respectively opened on the above-mentioned first circumferential ring disk 44 and the second circumferential ring disk 45, the circumferential cavity here is composed of the first circumferential groove 441 and the second circumferential groove 451, and the upper outer cover body 472 is installed at the bottom of the upper fixed seat plate 471, and the lower outer cover body 473 is installed on the upper outer cover by the outer clamping sleeve 475. At the bottom of the body 472, in order to install the above-mentioned inner moving bead 474, the upper outer cover 472 has an accommodating cavity 477, and the inner moving bead 474 is installed in the accommodating cavity 477 and extends out of the lower outer cover 473. Therefore, when an earthquake causes movement between the first circumferential ring disk 44 and the second circumferential ring disk 45, the inner moving bead 474 installed inside the upper outer cover 472 provides assistance for the movement of the first circumferential ring disk 44, reducing the movement resistance between the first circumferential ring disk 44 and the second circumferential ring disk 45, and then cooperates with the composite telescopic member 46 to reduce the left and right movement stroke of the first upper concave block 331 through the expansion and contraction of the composite telescopic member 46, so that the shape memory alloy outer ring 31 can limit the residual deformation of the mild steel inner ring 32 under strong earthquake action, thereby improving the self-resetting ability of the damper and the seismic toughness of the structure. Therefore, the present invention can dissipate earthquake energy in a graded manner and provide a self-resetting function, thereby limiting the horizontal displacement of the bridge structure and improving the ability of the bridge structure to resist earthquakes.

[0045] Furthermore, the above-mentioned displacement monitoring cover 476 is installed above the upper outer cover body 472 and is located below the upper fixed seat plate 471. Here, the displacement monitoring cover 476 is used to detect the inner moving beads 474 installed in the upper outer cover body 472. The displacement of the bridge can be detected by the movement of the inner moving beads 474, so that people can monitor the bridge in real time, which greatly improves the safety of the bridge.

[0046] Furthermore, a cross-shaped inner groove 483 is provided on the inner wall of the upper outer cover 472, and an arc-shaped blind groove 484 corresponding to the cross-shaped inner groove 483 is provided on the inner wall of the lower outer cover 473, wherein a plurality of auxiliary inner beads 485 are installed in the cross-shaped inner groove 483 and the arc-shaped blind groove 484, and the plurality of auxiliary inner beads 485 are slidingly connected with the inner movable beads 474. Furthermore, the cross-shaped inner groove 483 and the arc-shaped blind groove 484 are also coated with anti-rust paste (not shown) that wraps the auxiliary inner beads 485, and a circumferential leak-proof disc seat 486 is installed at the bottom of the lower outer cover 473, and an inner leak-proof wear-resistant pad 487 is installed in the circumferential leak-proof disc seat 486. Therefore, when the inner moving bead 474 moves, it drives the multiple auxiliary inner beads 485 inside to move, thus avoiding friction between the inner moving bead 474 and the upper outer cover 472 and the lower outer cover 473 after long-term use. Since the auxiliary inner beads 485 have anti-rust paste, rust on the surface of the auxiliary inner beads 485 is also avoided. In this way, they can be installed in the upper outer cover 472 and the outer cover 473 for a long time to contact with the inner moving bead 474, providing assistance for the movement of the inner moving bead 474.

[0047] Furthermore, a first circumferential outer eaves 478 is installed at the bottom of the upper outer cover 472, a second circumferential outer eaves 479 is installed at the upper end of the lower outer cover 473, and a first circumferential anti-leakage pad 480 is installed between the first circumferential outer eaves 478 and the second circumferential outer eaves 479. It can be understood that, in order to install the first circumferential anti-leakage pad 480, a first circumferential inner groove 4781 is opened at the bottom of the first circumferential outer eaves 478, and a second circumferential inner groove 4791 is opened at the upper end of the second circumferential outer eaves 479. In this way, the first circumferential anti-leakage pad 480 can be clamped between the first circumferential inner groove 4781 and the second circumferential inner groove 4791, and the upper outer cover 472 and the lower outer cover 473 are further blocked by the first circumferential anti-leakage pad 480.

[0048] Furthermore, in order to fix the first circumferential outer eaves 478 and the second circumferential outer eaves 479, the first circumferential outer eaves 478 and the second circumferential outer eaves 479 are wrapped by an outer clamping sleeve 475, wherein the outer clamping sleeve 475 includes two C-shaped sleeves 4751, and the two C-shaped sleeves 4751 are installed around the first circumferential outer eaves 478 and the second circumferential outer eaves 479, and the ends of the two C-shaped sleeves 4751 are detachably connected, so the first circumferential outer eaves 478 and the second circumferential outer eaves 479 can be fixed by the above-mentioned outer clamping sleeve 475, which is convenient for installation.

[0049] Furthermore, a circumferential inner support eave 481 is installed at the bottom of the lower outer cover body 473, and a second circumferential anti-leakage pad 482 is provided on the inner wall of the circumferential inner support eave 481. Here, the second circumferential anti-leakage pad 482 is sleeved on the outer surface of the inner movable bead 474 to prevent the internal anti-rust paste from leaking to the outside.

[0050] like Figure 12-13 As shown, further, the above-mentioned displacement monitoring cover 476 has multiple elastic inner support frames 488, and is mounted on the upper extension tube 489 of the upper outer cover body 472 through multiple elastic inner support frames 488, so as to achieve fixation between the displacement monitoring cover 476 and the upper outer cover body 472, and through the above-mentioned structural design, it is also convenient to install the displacement monitoring cover 476 on the upper extension tube 489, which greatly improves the installation efficiency.

[0051] Specifically, a plurality of internal fixing holes 490 are provided on the displacement monitoring cover 476, and the internal fixing holes 490 are used to install and fix the internal fixing block 491. A displacement monitoring module is installed at the lower end of the internal fixing block 491, and the displacement monitoring module is passed through the displacement detection hole 4722 of the upper outer cover 472. The displacement monitoring module includes a displacement sensor 492 and a control support rod 493. The displacement sensor 492 is installed at the lower end of the control support rod 493 and moves toward the inward moving bead 474. The control support rod 493 is used to provide power to the displacement sensor 492. It can be understood that the control support rod 493 has components such as a communication module, a control module, a power module, and a wireless communication connection between the displacement sensor 492 and the remote control center. In this way, the displacement sensor 492 can monitor the movement of the internal moving bead 474 in real time, so that the remote control center can obtain the displacement information of the internal moving bead 474 in real time, thereby realizing remote monitoring of the bridge displacement, improving the practicality of the auxiliary reset mechanism 4 and the safety of the bridge.

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0053] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0054] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A combined damper, characterized in that: include: A damper body (100), the damper body (100) comprising an upper steel plate (1), a lower steel plate (2), and a combined damping mechanism (3), the combined damping mechanism (3) being arranged between the upper steel plate (1) and the lower steel plate (2), the combined damping mechanism (3) comprising a shape memory alloy outer ring (31) and a mild steel inner ring (32), the mild steel inner ring (32) being arranged inside the shape memory alloy outer ring (31); A first reciprocating mechanism (33) is arranged between the upper steel plate (1) and the shape memory alloy outer ring (31), and the first reciprocating mechanism (33) includes a first upper concave block (331) and a second upper concave block (332), wherein the first upper concave block (331) is arranged at the bottom of the upper steel plate (1), and the second upper concave block (332) is arranged at the outer top of the shape memory alloy outer ring (31), and the second upper concave block (332) is located inside the first upper concave block (331).

2. The combined damper according to claim 1, characterized in that: A second reciprocating mechanism (34) is provided between the shape memory alloy outer ring (31) and the mild steel inner ring (32), and the second reciprocating mechanism (34) includes a third upper concave block (341) and a fourth upper concave block (342), wherein the third upper concave block (341) is provided at the inner top of the shape memory alloy outer ring (31), and the fourth upper concave block (342) is provided at the outer top of the mild steel inner ring (32), and the fourth upper concave block (342) is located inside the third upper concave block (341).

3. The combined damper according to claim 1, characterized in that: The bottom of the shape memory alloy outer ring (31) has a first opening (310), the bottom of the mild steel inner ring (32) has a second opening (320), the second opening (320) corresponds to the first opening (310), and the end of the shape memory alloy outer ring (31) is fixedly connected to the end of the mild steel inner ring (32).

4. The combined damper according to claim 1, characterized in that: Also includes: An auxiliary reset mechanism (4), the auxiliary reset mechanism (4) includes a plurality of first vertical rods (41), a plurality of second vertical rods (42), and a reset disk group (43), the plurality of first vertical rods (41) are all arranged at the bottom of the upper steel plate (1) and are located around the first upper concave block (331), the plurality of second vertical rods (42) are all arranged at the bottom of the lower steel plate (2) and are located around the first upper concave block (331), the reset disk group (43) is sleeved on the outside of the first upper concave block (331) through a plurality of horizontal support rods (430), and is respectively connected to the plurality of first vertical rods (41) and the plurality of second vertical rods (42), and a plurality of movable bead modules (47) are arranged in the circumferential cavity of the reset disk group (43).

5. The combined damper according to claim 4, characterized in that: The reset disk assembly (43) includes a first circumferential ring disk (44) and a second circumferential ring disk (45). The first circumferential ring disk (44) is sleeved on the outside of the first upper concave block (331) through a plurality of horizontal support rods (430). The second circumferential ring disk (45) is docked at the bottom of the first circumferential ring disk (44). The first circumferential ring disk (44) is connected to a plurality of first vertical rods (41). The second circumferential ring disk (45) is connected to a plurality of second vertical rods (42). The first circumferential ring disk (44) and the second circumferential ring disk (45) are movably connected.

6. The combined damper according to claim 5, characterized in that: A first circumferential groove (441) is provided at the bottom of the first circumferential ring disk (44), a second circumferential groove (451) is provided at the top of the second circumferential ring disk (45), the second circumferential groove (451) is located in the first circumferential ring disk (44), a plurality of composite telescopic parts (46) are provided between the inner wall of the first circumferential ring disk (44) and the outer wall of the second circumferential ring disk (45), and a plurality of movable bead modules (47) are evenly distributed in the first circumferential groove (441).

7. The combined damper according to claim 4, characterized in that: The movable bead module (47) comprises an upper fixed seat plate (471), an upper outer cover (472), a lower outer cover (473), an inner movable bead (474), an outer clamping sleeve (475) and a displacement monitoring cover (476); the upper fixed seat plate (471) is arranged on the inner top wall of the circumferential cavity; the upper outer cover (472) is arranged at the bottom of the upper fixed seat plate (471); the lower outer cover (473) is arranged at the bottom of the upper outer cover (472) through the outer clamping sleeve (475); the upper outer cover (472) has an accommodating cavity (477); the inner movable bead (474) is arranged in the accommodating cavity (477) and extends out of the lower outer cover (473); the displacement monitoring cover (476) is arranged above the upper outer cover (472) and below the upper fixed seat plate (471).

8. The combined damper according to claim 7, characterized in that: The bottom of the upper outer cover (472) is provided with a first circumferential outer eave (478), the upper end of the lower outer cover (473) is provided with a second circumferential outer eave (479), a first circumferential leak-proof pad (480) is provided between the first circumferential outer eave (478) and the second circumferential outer eave (479), the bottom of the lower outer cover (473) is provided with a circumferential inner support eave (481), the inner wall of the circumferential inner support eave (481) is provided with a second circumferential leak-proof pad (482), the inner wall of the upper outer cover (472) is provided with a cross-shaped inner groove (483), the lower outer cover (473) is provided with a cross-shaped inner groove (483), and the inner wall of the lower outer cover (473) is provided with a cross-shaped inner groove (483). An arc-shaped blind groove (484) corresponding to the cross-shaped inner groove (483) is provided on the inner wall, and a plurality of auxiliary inner beads (485) are provided in the cross-shaped inner groove (483) and the arc-shaped blind groove (484). The plurality of auxiliary inner beads (485) are slidably connected with the inner movable bead (474), and the cross-shaped inner groove (483) and the arc-shaped blind groove (484) are also provided with anti-rust paste for wrapping the auxiliary inner beads (485). A circumferential leak-proof disc seat (486) is provided at the bottom of the lower outer cover (473), and an inner leak-proof wear-resistant pad (487) is provided in the circumferential leak-proof disc seat (486).

9. The combined damper according to claim 8, characterized in that: The displacement monitoring cover (476) is provided with a plurality of elastic inner support frames (488) and is sleeved on the upper extension tube (489) of the upper outer cover (472) through the plurality of elastic inner support frames (488). The displacement monitoring cover (476) is provided with a plurality of inner fixing holes (490). An inner fixing block (491) is provided in each of the inner fixing holes (490). A displacement monitoring module is provided at the lower end of the inner fixing block (491). The displacement monitoring module is inserted into the displacement detection hole of the upper outer cover (472). The displacement monitoring module includes a displacement sensor (492) and a control support rod (493). The displacement sensor (492) is provided at the lower end of the control support rod (493) and moves toward the inwardly moving bead (474).

Images