A viscous damping device based on displacement amplification

Abstract

The present invention provides a viscous damping device based on displacement amplification. It belongs to the technical field of building seismic equipment, and includes: a lower mounting plate, an upper mounting plate and a viscous damper. The viscous damper is installed between the lower mounting plate and the upper mounting plate. Two lower node plates are fixedly installed on the top of the lower mounting plate, and two upper node plates are fixedly installed on the bottom of the upper mounting plate. A first fixed plate is rotatably installed between the two lower node plates. The viscous damper is rotatably installed on the first fixed plate, and a connecting arm located above the viscous damper is fixedly installed on the first fixed plate. The viscous damping device based on displacement amplification provided by the present invention has the advantages that the viscous damper can obtain an enhanced energy dissipation effect even under a relatively small displacement condition, improves the shock absorption performance of the building under the action of an earthquake, facilitates relevant personnel to obtain the operating conditions of the viscous damper at the epicenter, and is reliable to use.

Description

Technical Field

[0001] The invention relates to the technical field of building earthquake-resistant equipment, and in particular to a viscous damping device based on displacement amplification. Background Art

[0002] With the rapid advancement of global urbanization, the seismic performance design of buildings has received great attention, especially in earthquake-prone areas. Improving the seismic resistance of buildings is crucial to protecting people's lives and property. With the increase in building height and the complexity of structural design, traditional rigid seismic resistance methods are difficult to meet safety and economic requirements in some building structures, especially the inability to effectively eliminate the interaction between the infill wall and the main structure, resulting in easy damage or even failure of beams and columns after the earthquake, affecting the overall structural stability. In order to overcome the limitations of traditional seismic design, various types of shock-absorbing devices have begun to be used in the construction field in recent years, among which shock-absorbing devices such as viscous dampers have become an effective means to improve the seismic resistance and comfort of buildings.

[0003] At present, viscous dampers are widely used to dissipate seismic energy to reduce the vibration amplitude of building structures. Viscous dampers produce energy dissipation effects through the viscous flow of damping media, and mainly respond to the relative displacement and relative velocity between the upper cantilever wall and the lower cantilever wall. In the design of traditional viscous dampers, their response displacement and velocity are directly related to the relative displacement and relative velocity between the cantilever walls. For example, when the relative displacement between the cantilever walls is X 0 When the viscous damper has the same response displacement as X 0 ; When the relative speed is V 0 When V 0 Therefore, the energy dissipation capacity of the viscous damper is largely subject to the displacement and velocity between the cantilever walls, which limits its shock absorption effect under certain earthquake effects.

[0004] Therefore, it is necessary to provide a viscous damping device based on displacement amplification to solve the above technical problems. Summary of the invention

[0005] The technical problem solved by the present invention is to provide a viscous damper that can achieve enhanced energy dissipation effect under smaller displacement conditions, thereby improving the shock absorption performance of buildings under earthquakes, making it convenient for relevant personnel to obtain the operating conditions of the viscous damper at the epicenter, and using a reliable viscous damping device based on displacement amplification.

[0006] In order to solve the above technical problems, the present invention provides a viscous damping device based on displacement amplification, comprising: a lower mounting plate, an upper mounting plate and a viscous damper, the viscous damper is installed between the lower mounting plate and the upper mounting plate, two lower node plates are fixedly installed on the top of the lower mounting plate, two upper node plates are fixedly installed on the bottom of the upper mounting plate, a first fixing plate is rotatably installed between the two lower node plates, the viscous damper is rotatably installed on the first fixing plate, a connecting arm located above the viscous damper is fixedly installed on the first fixing plate, an amplifying arm is rotatably installed on one end of the connecting arm away from the first fixing plate through a pin, the top end of the amplifying arm extends between the two upper node plates and is rotatably connected to the two upper node plates, and the bottom end of the amplifying arm is rotatably connected to one end of the viscous damper away from the first fixing plate;

[0007] The pin shaft divides the magnifying arm into an upper half and a lower half, and the length of the upper half is smaller than that of the lower half.

[0008] Furthermore, a support rod is fixedly installed on the piston rod of the viscous damper, a triangular long block is fixedly installed on the end of the support rod away from the piston rod, a support arm is fixedly installed on the cylinder body of the viscous damper, a support frame is fixedly installed on the support arm, a plurality of triangular short blocks and a plurality of trigger mechanisms are installed on the support frame, and the plurality of trigger mechanisms are respectively connected to the plurality of triangular short blocks.

[0009] Preferably, any one of the trigger mechanisms includes a hexagonal slide bar, a first set of plates, a first spring, a contact head and a travel switch, the hexagonal slide bar is slidably mounted on the support frame, the first set of plates is fixedly mounted on the hexagonal slide bar, the first spring is mounted on the hexagonal slide bar, one end of the first spring is fixedly connected to the support frame, and the other end is fixedly connected to the first set of plates, the triangular short block is fixedly mounted on one end of the hexagonal slide bar close to the viscous damper, the contact head is fixedly mounted on one end of the hexagonal slide bar away from the viscous damper, the travel switch is fixedly mounted on the support frame, and the contact head is in contact with the top rod of the travel switch.

[0010] Preferably, a limit sleeve is fixedly mounted on the hexagonal slide rod, and the limit sleeve is in contact with the support frame.

[0011] Furthermore, a supporting sub-rod is fixedly installed at the bottom of the supporting rod, a marking pen is installed on the supporting sub-rod, a square box is fixedly installed at the bottom of the supporting arm, cardboard is fixedly installed in the square box, and an avoidance strip is opened on the outer wall of the square box on one side close to the supporting sub-rod, and the pen tip of the marking pen extends through the avoidance strip into the square box and contacts the cardboard.

[0012] Furthermore, a sleeve is slidably sleeved on the supporting sub-rod, an installation groove is opened on the end of the sleeve away from the supporting sub-rod, the marking pen is fixedly installed in the installation groove, a second set plate is fixedly sleeved on the supporting sub-rod, a second spring is sleeved on the supporting sub-rod, one end of the second spring is fixedly connected to the sleeve, and the other end is fixedly connected to the second set plate.

[0013] Furthermore, a paper strip insertion opening is provided at the bottom of the square box, the paper board passes through the paper strip insertion opening and is movably connected to the paper strip insertion opening, a paper pressing board is slidably installed in the square box, a second fixing plate is fixedly installed on the outer wall of the square box on the side away from the supporting sub-rod, an adjusting screw passes through and is threadedly installed on the second fixing plate, and one end of the adjusting screw away from the second fixing plate extends into the square box and is rotatably connected to the paper pressing board.

[0014] Preferably, a plurality of anti-slip convex patterns are integrally formed on the outer wall of the sleeve.

[0015] Furthermore, two blocking covers are slidably installed on the square box, and a semicircular opening is opened on the side where the two blocking covers are close to each other, and the pen tip of the marker passes through the two semicircular openings. Two first fixed blocks are fixedly installed on the top of the square box, and second fixed blocks are fixedly installed on both ends of the square box. Two long rods are arranged above the square box, and the two long rods are fixedly installed between the corresponding first fixed blocks and second fixed blocks. A connecting slider is fixedly installed on the top of the two blocking covers, and the two long rods pass through the corresponding connecting sliders and are slidably connected to the corresponding connecting sliders. A third spring is sleeved on the long rod, and one end of the third spring is fixedly connected to the connecting slider, and the other end is fixedly connected to the second fixed block.

[0016] Preferably, limiting slides are provided on the top inner wall and the bottom inner wall of the baffle, and limiting slides are fixedly installed on the top and bottom of the square box. The two limiting slides are respectively located in the corresponding limiting slides and are slidably connected to the corresponding inner walls of the limiting slides.

[0017] Compared with the related art, the viscous damping device based on displacement amplification provided by the present invention has the following beneficial effects:

[0018] The present invention provides a viscous damping device based on displacement amplification, which realizes the response to the vibration displacement of the building by fixing the upper mounting plate and the lower mounting plate on the upper cantilever wall and the lower cantilever wall of the building body respectively. One end of the viscous damper is connected to the lower mounting plate, and the other end is connected to the upper mounting plate through a displacement amplification mechanism. The relative displacement between the upper and lower cantilever walls is amplified by multiples through the displacement amplification mechanism, thereby increasing the response displacement and speed of the viscous damper, so that the viscous damper can also obtain enhanced energy dissipation effect under small displacement conditions. This amplification mechanism effectively solves the problem of insufficient energy dissipation of traditional viscous dampers under small vibration displacement conditions, thereby improving the shock absorption performance of buildings under earthquakes;

[0019] The present invention provides a viscous damping device based on displacement amplification. Through the arrangement of a support rod, a support arm, a triangular long block, a support frame, a plurality of triangular short blocks and a plurality of triggering mechanisms, the action signal output by the travel switch on each triggering mechanism can be collected by a counter when in use. After the viscous damper is actuated, its piston rod drives the triangular long block to move. The triangular long block will contact the corresponding triangular short block in the process of moving to the left or right, so that the triangular short block retreats. After the triangular short block retreats a certain distance, the travel switch on the corresponding triggering mechanism will be triggered to act. The external counter can record the number position corresponding to the travel switch and the time of each triggering, so that relevant personnel can determine whether the viscous damper is working by querying the data recorded in the counter, and roughly obtain the maximum extension and contraction amplitude of the piston rod when the viscous damper is working in the earthquake, and the extension or retraction amplitude of the piston rod at some time nodes in the earthquake process, that is, it is convenient for relevant personnel to obtain some operating conditions of the viscous damper in the earthquake process, and it is convenient for relevant personnel to make corresponding improvements to the viscous damping device based on displacement amplification according to the query results.

[0020] The present invention provides a viscous damping device based on displacement amplification. By arranging a supporting auxiliary rod, a marking pen, a square box and a paperboard, after the viscous damper is actuated in an earthquake, the marking pen can leave a horizontal line mark on the paperboard driven by the piston rod of the viscous damper. Even in the case of a power outage and a disconnection between a travel switch and a counter during an earthquake, information on whether the viscous damper is actuated and the maximum amplitude of the actuation can still be obtained, thereby providing multiple guarantees for relevant personnel to record the operation information of the viscous damper in the epicenter and improving the reliability of the use of the device. By arranging components such as a sleeve, a second set plate and a second spring, it is convenient to replace the marking pen. By arranging components such as a second fixing plate, an adjusting screw rod and a pressing paperboard, it is convenient to replace the paperboard, thereby having the advantage of being easy to use.

[0021] The present invention provides a viscous damping device based on displacement amplification. Through the arrangement of two shields, two first fixed blocks, two second fixed blocks, two long rods, two third springs and other components, under normal conditions, the avoidance strip opening can be well shielded to prevent excessive dust from accumulating on the cardboard and affecting the marking of the horizontal line by the marker pen, thereby further improving the reliability of the use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic structural diagram of a first embodiment of a viscous damping device based on displacement amplification provided by the present invention;

[0023] Figure 2 for Figure 1 The schematic diagram of the installation of the viscous damping device based on displacement amplification in actual application is shown;

[0024] Figure 3 A schematic structural diagram of a second embodiment of a viscous damping device based on displacement amplification provided by the present invention;

[0025] Figure 4 for Figure 3 An enlarged schematic diagram of section A is shown;

[0026] Figure 5 for Figure 4 The schematic diagram of the assembly of multiple short triangular blocks and long triangular blocks in a side view is shown;

[0027] Figure 6 for Figure 4 The schematic diagram of the assembly of multiple short triangular blocks and long triangular blocks in a top view is shown;

[0028] Figure 7 for Figure 4 A schematic diagram of the structure of the support frame shown;

[0029] Figure 8 A schematic structural diagram of a third embodiment of a viscous damping device based on displacement amplification provided by the present invention;

[0030] Fig. 9 for Figure 8 The schematic diagram of the assembly of the supporting auxiliary rod and the square box shown;

[0031] Fig.10 for Fig. 9 A schematic diagram of the structure of the sleeve shown;

[0032] Fig.11 for Fig. 9 The schematic diagram of the structure of the square box shown;

[0033] Fig.12A schematic diagram of the assembly of a square box and a marker pen in a fourth embodiment of a viscous damping device based on displacement amplification provided by the present invention;

[0034] Fig.13 for Fig.12 The schematic diagram of the structure of the square box shown;

[0035] Fig.14 for Fig.13 An enlarged schematic diagram of portion B is shown;

[0036] Fig.15 for Fig.13 An enlarged schematic diagram of part C is shown.

[0037] Numbers in the figure: 1, lower node plate; 2, upper node plate; 3, first fixed plate; 4, connecting arm; 5, magnifying arm; 6, support rod; 7, support arm; 8, triangular long block; 9, support frame; 10, hexagonal slide bar; 11, triangular short block; 12, first set of plates; 13, first spring; 14, contact head; 15, travel switch; 16, supporting auxiliary rod; 17, sleeve; 18, marking pen; 19, second set of plates; 20, second spring; 21. Square box; 22. Cardboard; 23. Second fixed plate; 24. Adjusting screw; 25. Cardboard pressing plate; 26. Shield; 27. First fixed block; 28. Second fixed block; 29. ​​Long rod; 30. Connecting slider; 31. Third spring; 100. Lower mounting plate; 200. Upper mounting plate; 300. Viscous damper; 1701. Mounting groove; 2101. Avoidance strip opening; 2102. Paper strip insertion opening; 2601. Semicircular opening. DETAILED DESCRIPTION

[0038] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0039] First embodiment:

[0040] Please refer to Figure 1-Figure 2 In the first embodiment of the present invention, the displacement amplification-based viscous damping device can amplify the relative displacement between the upper and lower cantilever walls by multiples through the displacement amplification mechanism, thereby increasing the response displacement and speed of the viscous damper 300. Assuming that the displacement amplification factor is N, when the relative displacement is X 0 When the viscous damper 300 has a response displacement of N×X 0 ; Similarly, at a relative speed of V 0 When the viscous damper 300 is 0 Through displacement amplification, the viscous damper 300 can respond more effectively and dissipate more energy during an earthquake, thereby improving its overall shock absorption effect under the action of an earthquake;

[0041] It specifically includes: a lower mounting plate 100, an upper mounting plate 200 and a viscous damper 300, the viscous damper 300 is installed between the lower mounting plate 100 and the upper mounting plate 200, in actual installation, embedded components are pre-embedded in the upper cantilever wall and the lower cantilever wall, the upper mounting plate 200 and the lower mounting plate 100 are respectively fixedly installed on the corresponding embedded components by nuts, two lower node plates 1 are fixedly installed on the top of the lower mounting plate 100, two upper node plates 2 are fixedly installed on the bottom of the upper mounting plate 200, a first fixed plate 3 is rotatably installed between the two lower node plates 1, and the first fixed plate 3 comprises a vertical plate and an ear plate, the ear plate is vertically fixedly connected to the outer side surface of the vertical plate, the ear plate is rotatably installed between the two lower node plates 1, the viscous damper 300 is rotatably installed on the vertical plate on the first fixed plate 3, a connecting arm 4 located above the viscous damper 300 is fixedly installed on the vertical plate of the first fixed plate 3, an amplifying arm 5 is rotatably installed on the end of the connecting arm 4 away from the first fixed plate 3 through a pin, the top end of the amplifying arm 5 extends between the two upper node plates 2 and is rotatably connected to the two upper node plates 2, and the bottom end of the amplifying arm 5 is rotatably connected to the end of the viscous damper 300 away from the first fixed plate 3;

[0042] The pin shaft divides the magnifying arm 5 into an upper half and a lower half, and the length of the upper half is smaller than that of the lower half;

[0043] The connecting arm 4 acts as a connecting bridge in the displacement amplification mechanism under the action of an earthquake. Its connection design allows the amplification arm 5 to achieve a certain range of rotation during the vibration transmission process, thereby improving the overall amplification effect. When the connecting arm 4 pushes the amplification arm 5, due to the lever structure with a short upper half and a long lower half, the original displacement can be proportionally amplified and transmitted to the viscous damper 300. The length of the upper half is L1 and the length of the lower half is L2, then the amplification factor N=L2 / L1;

[0044] Under the action of earthquake or vibration, the displacement of the lower node plate 1 is transmitted to the connecting arm 4 through the first fixed plate 3, and the connecting arm 4 drives the amplifying arm 5 to rotate. Due to the lever design of the amplifying arm 5 (the upper half is shorter and the lower half is longer), the initial displacement between the cantilever walls is amplified and transmitted to the viscous damper 300. The viscous damper 300 further absorbs the amplified displacement and velocity through the viscous fluid resistance inside it, thereby efficiently dissipating energy and achieving a shock absorption effect.

[0045] In this embodiment:

[0046] The lower node plate 1, the upper node plate 2, the amplifying arm 5, the connecting arm 4 and the first fixed plate 3 constitute a displacement amplifying mechanism. Under the action of an earthquake, a relative displacement is generated between the upper cantilever wall and the lower cantilever wall. The displacement is transmitted to the displacement amplifying mechanism through the upper and lower embedded components, and is amplified in the mechanism at a certain ratio. The amplified displacement and velocity are further transmitted to the viscous damper 300. The viscous damper 300 uses the amplified displacement and velocity to generate greater resistance, thereby dissipating earthquake energy more efficiently and reducing the vibration amplitude of the building structure. This amplification and transmission process enables the device to achieve an ideal energy dissipation effect even under a smaller vibration displacement.

[0047] Compared with the related art, the viscous damping device based on displacement amplification provided by the present invention has the following beneficial effects:

[0048] The upper mounting plate 200 and the lower mounting plate 100 are respectively fixed on the upper cantilever wall and the lower cantilever wall of the building body to achieve the response to the vibration displacement of the building. One end of the viscous damper 300 is connected to the lower mounting plate 100, and the other end is connected to the upper mounting plate 200 through a displacement amplification mechanism. The relative displacement between the upper and lower cantilever walls is amplified by the displacement amplification mechanism, thereby increasing the response displacement and speed of the viscous damper 300, so that the viscous damper 300 can also obtain an enhanced energy dissipation effect under small displacement conditions. This amplification mechanism effectively solves the problem of insufficient energy dissipation of the traditional viscous damper 300 under small vibration displacement conditions, thereby improving the shock absorption performance of the building under earthquake action.

[0049] Second embodiment:

[0050] Based on the viscous damping device based on displacement amplification provided in the first embodiment of the present application, the second embodiment of the present application proposes another viscous damping device based on displacement amplification. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0051] The second embodiment of the present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0052] Please refer to Figure 3-Figure 7In the viscous damping device based on displacement amplification proposed in this embodiment, a support rod 6 is fixedly installed on the piston rod of the viscous damper 300, and the support rod 6 moves with the piston rod. A triangular long block 8 is fixedly installed on the end of the support rod 6 away from the piston rod. A support arm 7 is fixedly installed on the cylinder body of the viscous damper 300, and a support frame 9 is fixedly installed on the support arm 7. A plurality of triangular short blocks 11 and a plurality of trigger mechanisms are installed on the support frame 9. The plurality of trigger mechanisms are respectively connected to the plurality of triangular short blocks 11. The triangular long block 8 moves under the drive of the support rod 6. After contacting the triangular short block 11, the trigger mechanism connected to the triangular short block 11 is actuated, thereby outputting a closing signal to the external monitoring device.

[0053] Specifically, any trigger mechanism includes a hexagonal slide bar 10, a first set of plates 12, a first spring 13, a contact head 14 and a travel switch 15. The hexagonal slide bar 10 is slidably mounted on the support frame 9, the first set of plates 12 is fixedly mounted on the hexagonal slide bar 10, the first spring 13 is mounted on the hexagonal slide bar 10, one end of the first spring 13 is fixedly connected to the support frame 9, and the other end is fixedly connected to the first set of plates 12, the triangular short block 11 is fixedly mounted on the end of the hexagonal slide bar 10 close to the viscous damper 300, the contact head 14 is fixedly mounted on the end of the hexagonal slide bar 10 away from the viscous damper 300, the travel switch 15 is fixedly mounted on the support frame 9, and the contact head 14 is connected to the travel switch 15. 5, and when the triangular long block 8 contacts the triangular short block 11 during the movement, the triangular short block 11 will retreat (away from the direction of the viscous damper 300), and the triangular short block 11 drives the hexagonal slide bar 10 to slide backward, so that the first spring 13 will be compressed, and at the same time, the hexagonal slide bar 10 pushes the contact head 14 to move backward, pushing the top rod on the travel switch 15 to retract, so that the travel switch 15 is actuated, and the two ends of the normally open point on the travel switch 15 are connected to an external counter with a power-off memory function (as a monitoring device), and each travel switch 15 is marked with a number position. Each time the travel switch 15 is actuated, the counter can record the action and the corresponding time;

[0054] In the initial state, if Figure 4As shown, the triangular long block 8 is located between the two uppermost triangular short blocks 11. The multiple trigger mechanisms on the left side of the triangular long block 8 are used to record the amplitude of the piston rod of the viscous damper 300 extending outward, and the multiple trigger mechanisms on the right side of the triangular long block 8 are used to record the amplitude of the piston rod of the viscous damper 300 retracting inward. The longer the triangular short block 11 is from the triangular long block 8, the larger the amplitude corresponding to it is, that is, the larger the number of digits, the larger the corresponding amplitude is. In this way, during an earthquake, the triangular long block 8 will trigger the corresponding travel switch 15 to act in the process of reciprocating extension and contraction following the piston rod of the viscous damper 300, and the counter records the number of the travel switch 15 that acts and the corresponding time. In this way, after the earthquake, relevant personnel can determine whether the viscous damper 300 has been working through the data recorded in the counter, and roughly obtain the maximum extension and contraction amplitude of the piston rod when the viscous damper 300 is working, as well as the extension or retraction amplitude of the piston rod at some time points during the earthquake.

[0055] In this embodiment, in order to limit the normal position of the triangular short block 11 , a limit sleeve is fixedly sleeved on the hexagonal slide bar 10 , and the limit sleeve is in contact with the support frame 9 .

[0056] In this embodiment:

[0057] Through the arrangement of the support rod 6, the support arm 7, the triangular long block 8, the support frame 9, the plurality of triangular short blocks 11 and the plurality of trigger mechanisms, the action signal output by the travel switch 15 on each trigger mechanism can be collected by the counter when in use. After the viscous damper 300 is actuated, its piston rod will drive the triangular long block 8 to move. In the process of moving to the left or right, the triangular long block 8 will contact the corresponding triangular short block 11, causing the triangular short block 11 to retreat. After the triangular short block 11 retreats a certain distance, the travel switch 15 on the corresponding trigger mechanism will be triggered to act. The external counter can set the travel switch 15 to the corresponding position. The number corresponding to switch 15 and the time of each triggering are recorded, so that relevant personnel can determine whether the viscous damper 300 has worked by querying the data recorded in the counter, and roughly obtain the maximum extension and contraction range of the piston rod when the viscous damper 300 is working in the earthquake, as well as the extension or retraction range of the piston rod at some time points during the earthquake. This makes it convenient for relevant personnel to obtain some operating conditions of the viscous damper 300 during the earthquake, and to make corresponding improvements to the viscous damping device based on displacement amplification according to the query results.

[0058] Third embodiment:

[0059] Based on the viscous damping device based on displacement amplification provided by the second embodiment of the present application, the third embodiment of the present application proposes another viscous damping device based on displacement amplification. The third embodiment is only a preferred embodiment of the second embodiment, and the implementation of the third embodiment will not affect the independent implementation of the second embodiment.

[0060] The third embodiment of the present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0061] Please refer to Figure 8-Figure 11 In the viscous damping device based on displacement amplification provided in this embodiment, a supporting auxiliary rod 16 is fixedly installed at the bottom of the supporting rod 6, and the supporting auxiliary rod is "L"-shaped. A marking pen 18 is installed on the supporting auxiliary rod 16. The refill of the marking pen 18 is a ballpoint pen refill, which has the advantages that the ink is not easy to evaporate and is not easy to break. A square box 21 is fixedly installed at the bottom of the supporting arm 7, and a cardboard 22 is fixedly installed in the square box 21. The cardboard 22 is fixed in the square box 21 by clamping and placing. An avoidance strip 2101 is opened on the outer wall of the square box 21 on one side close to the supporting auxiliary rod 16. The pen tip of the marking pen 18 passes through the avoidance strip 2101 and extends into the square box 21 and contacts the cardboard 22. The pen tip of the marking pen 18 is in contact with the longitudinal center line of the cardboard 22 in the initial state.

[0062] In this embodiment, in order to facilitate the replacement of the marker pen 18, a sleeve 17 is slidably sleeved on the support sub-rod 16, and two limit sliders are fixedly installed on the outer wall of the support sub-rod 16. Two long sliding openings are provided on the outer wall of the sleeve 17, and the two limit sliders are respectively located in the corresponding long sliding openings and are slidably connected with the inner walls of the corresponding long sliding openings. An installation groove 1701 is provided at one end of the sleeve 17 away from the support sub-rod 16, and the marker pen 18 is fixedly installed in the installation groove 1701. A tightening screw is threadedly installed on the bottom of the sleeve 17, and the top of the tightening screw conflicts with the pen shell of the marker pen 18, supporting A second set plate 19 is fixedly sleeved on the auxiliary rod 16, and a second spring 20 is sleeved on the supporting auxiliary rod 16. One end of the second spring 20 is fixedly connected to the sleeve 17, and the other end is fixedly connected to the second set plate 19. When the marker pen 18 needs to be replaced, the sleeve 17 is lowered and dragged in the direction away from the square box 21 to increase the distance between the sleeve 17 and the square box 21, so that there is enough space to insert the marker pen 18 into the installation groove 1701. In addition, under normal conditions, since the second spring 20 gives the sleeve 17 an initial elastic force, it can ensure that the pen tip of the marker pen 18 maintains close contact with the cardboard 22.

[0063] In this embodiment, in order to facilitate the replacement of the marked cardboard 22, a paper strip insertion port 2102 is opened at the bottom of the square box 21. The cardboard 22 passes through the paper strip insertion port 2102 and is movably connected to the paper strip insertion port 2102. The cardboard 22 can be inserted into the square box 21 through the paper strip insertion port 2102. A cardboard pressing paper 25 is slidably installed in the square box 21. A second fixing plate 23 is fixedly installed on the outer wall of the square box 21 on the side away from the supporting auxiliary rod 16. An adjusting screw 24 is penetrated and threadedly installed on the second fixing plate 23. One end of the adjusting screw 24 away from the second fixing plate 23 extends into the square box 21 and is rotatably connected to the cardboard pressing paper 25. A knob is fixedly installed on the end of the adjusting screw 24 away from the cardboard pressing paper 25 to facilitate user operation.

[0064] In order to prevent the hand from slipping when dragging the sleeve 17 , a plurality of anti-slip convex patterns are integrally formed on the outer wall of the sleeve 17 .

[0065] In this embodiment:

[0066] When the support rod 6 moves with the viscous damper 300, the support sub-rod 16 is also driven to move. The support sub-rod 16 drives the sleeve 17, the marker pen 18, etc. to move, so that the marker pen 18 can draw a horizontal line on the cardboard 22. In the process of rotating the adjusting screw 24 counterclockwise, it can move backward. Driven by the adjusting screw 24, the cardboard 25 is separated from the cardboard 22, so that the cardboard 22 loses its fixation. Then the cardboard 22 can be taken out. Relevant personnel can observe whether there is a horizontal line on the cardboard 22 to determine whether the viscous damper 300 is broken. After drawing the longitudinal center line of the paperboard 22, the length of the horizontal lines on the left and right sides of the center line can be measured with a ruler with the center line as the zero point. The measured length is the maximum extension and contraction amplitude of the piston rod of the viscous damper 300 during the earthquake. In this way, during the earthquake, if a power failure occurs, or the connection line between the travel switch 15 and the counter is disconnected, the relevant personnel can at least obtain information on whether the viscous damper 300 is activated and the maximum amplitude of the viscous damper 300 by observing the paperboard 22 after the earthquake.

[0067] By supporting the auxiliary rod 16, the marking pen 18, the square box 21 and the cardboard 22, after the viscous damper 300 is actuated in an earthquake, the marking pen 18 can leave a horizontal line mark on the cardboard 22 driven by the piston rod of the viscous damper 300. Even if there is a power outage and the connection between the travel switch 15 and the counter is disconnected during the earthquake, it is still possible to obtain information on whether the viscous damper 300 is actuated and the maximum amplitude of the actuation, which provides multiple guarantees for relevant personnel to record the operating information of the viscous damper 300 in the epicenter and improves the reliability of the device. By arranging the sleeve 17, the second set plate 19, the second spring 20 and other components, it is convenient to replace the marking pen 18. By arranging the second fixing plate 23, the adjusting screw 24, the pressing paper board 25 and other components, it is convenient to replace the cardboard 22, which has the advantage of being easy to use.

[0068] Fourth embodiment:

[0069] Based on the viscous damping device based on displacement amplification provided in the third embodiment of the present application, the fourth embodiment of the present application proposes another viscous damping device based on displacement amplification. The fourth embodiment is only a preferred embodiment of the third embodiment, and the implementation of the fourth embodiment will not affect the independent implementation of the third embodiment.

[0070] The fourth embodiment of the present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0071] Please refer to Figure 12-Figure 15 In the viscous damping device based on displacement amplification provided in this embodiment, two shields 26 are slidably installed on the square box 21. The shields 26 are "C"-shaped. The top inner wall and the bottom inner wall of the shield 26 are both provided with limited slideways. The top and bottom of the square box 21 are both fixedly installed with limited slide bars. The two limited slide bars are respectively located in the corresponding limited slideways and are slidably connected to the inner walls of the corresponding limited slideways. The two shields 26 are used to cover the avoidance strip opening 2101 under normal conditions to prevent dust in the environment from accumulating on the front side of the cardboard 22 and affecting the marker 18 from drawing horizontal lines on its front side. The two shields 26 are both provided with semicircular openings 2601 on the sides close to each other. The tip of the marker pen 18 passes through two semicircular openings 2601, two first fixed blocks 27 are fixedly installed on the top of the square box 21, and second fixed blocks 28 are fixedly installed at both ends of the square box 21. Two long rods 29 are arranged above the square box 21, and the two long rods 29 are fixedly installed between the corresponding first fixed blocks 27 and the second fixed blocks 28. A connecting slider 30 is fixedly installed on the top of the two baffle covers 26, and the two long rods 29 pass through the corresponding connecting slider 30 and are slidably connected with the corresponding connecting slider 30. A third spring 31 is sleeved on the long rod 29, and one end of the third spring 31 is fixedly connected to the connecting slider 30, and the other end is fixedly connected to the second fixed block 28.

[0072] In this embodiment:

[0073] In the normal state, the two third springs 31 respectively give an elastic force to the corresponding connecting slider 30, so that the two shields 26 merge together, and the marker pen 18 passes through the two semicircular openings 2601. In this state, the two shields 26 completely cover the avoidance strip openings 2101, thereby preventing dust in the environment from passing through the avoidance strip openings 2101 and adhering to the paperboard 22, and maintaining the cleanliness of the front side of the paperboard 22 for a long time. When the viscous damper 300 is in action, the supporting auxiliary rod 16 drives the marker pen 18 to move horizontally through the sleeve 17, and the marker pen 18 pushes the shield 26 to move. During the movement of the shield 26, the third spring 31 will be compressed by the connecting slider 30 to store elastic potential energy. When the marker pen 18 moves in the opposite direction, the shield 26 will eventually reset under the push of the third spring 31;

[0074] By arranging two shields 26, two first fixed blocks 27, two second fixed blocks 28, two long rods 29, two third springs 31 and other components, under normal conditions, the avoidance strip 2101 can be well shielded to prevent excessive dust from accumulating on the cardboard 22 and affecting the marking of the horizontal line by the marker pen 18, thereby further improving the reliability of the use of the device.

[0075] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A viscous damping device based on displacement amplification, comprising a lower mounting plate (100), an upper mounting plate (200) and a viscous damper (300), wherein the viscous damper (300) is mounted between the lower mounting plate (100) and the upper mounting plate (200), and characterized in that: Two lower node plates (1) are fixedly mounted on the top of the lower mounting plate (100), and two upper node plates (2) are fixedly mounted on the bottom of the upper mounting plate (200); a first fixing plate (3) is rotatably mounted between the two lower node plates (1); the viscous damper (300) is rotatably mounted on the first fixing plate (3); a connecting arm (4) located above the viscous damper (300) is fixedly mounted on the first fixing plate (3); an amplifying arm (5) is rotatably mounted on one end of the connecting arm (4) away from the first fixing plate (3) via a pin; the top end of the amplifying arm (5) extends between the two upper node plates (2) and is rotatably connected to the two upper node plates (2); and the bottom end of the amplifying arm (5) is rotatably connected to one end of the viscous damper (300) away from the first fixing plate (3); The pin shaft divides the magnifying arm (5) into an upper half and a lower half, and the length of the upper half is smaller than the length of the lower half; A support rod (6) is fixedly mounted on the piston rod of the viscous damper (300); a triangular long block (8) is fixedly mounted on one end of the support rod (6) away from the piston rod; a support arm (7) is fixedly mounted on the cylinder body of the viscous damper (300); a support frame (9) is fixedly mounted on the support arm (7); a plurality of triangular short blocks (11) and a plurality of trigger mechanisms are mounted on the support frame (9); and the plurality of trigger mechanisms are respectively connected to the plurality of triangular short blocks (11).

2. The viscous damping device based on displacement amplification according to claim 1 is characterized in that: Any of the trigger mechanisms comprises a hexagonal slide bar (10), a first set plate (12), a first spring (13), a contact head (14) and a travel switch (15); the hexagonal slide bar (10) is slidably mounted on the support frame (9); the first set plate (12) is fixedly mounted on the hexagonal slide bar (10); the first spring (13) is mounted on the hexagonal slide bar (10); one end of the first spring (13) is fixedly connected to the support frame (9); and the other end of the first spring (13) is fixedly connected to the first set plate (12); the triangular short block (11) is fixedly mounted on one end of the hexagonal slide bar (10) close to the viscous damper (300); the contact head (14) is fixedly mounted on one end of the hexagonal slide bar (10) away from the viscous damper (300); and the travel switch (15) is fixedly mounted on the support frame (9); and the contact head (14) contacts the top rod of the travel switch (15).

3. The viscous damping device based on displacement amplification according to claim 2 is characterized in that: A limit sleeve is fixedly sleeved on the hexagonal slide bar (10), and the limit sleeve is in contact with the support frame (9).

4. The viscous damping device based on displacement amplification according to claim 2 is characterized in that: A supporting auxiliary rod (16) is fixedly mounted on the bottom of the supporting rod (6), a marking pen (18) is mounted on the supporting auxiliary rod (16), a square box (21) is fixedly mounted on the bottom of the supporting arm (7), a paperboard (22) is fixedly mounted inside the square box (21), an escape slot (2101) is provided on an outer wall of a side of the square box (21) close to the supporting auxiliary rod (16), and a tip of the marking pen (18) passes through the escape slot (2101) and extends into the square box (21) and contacts the paperboard (22).

5. The viscous damping device based on displacement amplification according to claim 4 is characterized in that: A sleeve (17) is slidably sleeved on the supporting auxiliary rod (16); an installation groove (1701) is provided at one end of the sleeve (17) away from the supporting auxiliary rod (16); the marking pen (18) is fixedly installed in the installation groove (1701); a second sleeve plate (19) is fixedly sleeved on the supporting auxiliary rod (16); a second spring (20) is sleeved on the supporting auxiliary rod (16); one end of the second spring (20) is fixedly connected to the sleeve (17), and the other end is fixedly connected to the second sleeve plate (19).

6. The viscous damping device based on displacement amplification according to claim 5 is characterized in that: The bottom of the square box (21) is provided with a paper strip insertion opening (2102), the paper board (22) passes through the paper strip insertion opening (2102) and is movably connected to the paper strip insertion opening (2102), a paper pressing board (25) is slidably installed in the square box (21), a second fixing plate (23) is fixedly installed on the outer wall of the square box (21) on the side away from the supporting auxiliary rod (16), an adjusting screw (24) passes through and is threadedly installed on the second fixing plate (23), and one end of the adjusting screw (24) away from the second fixing plate (23) extends into the square box (21) and is rotatably connected to the paper pressing board (25).

7. The viscous damping device based on displacement amplification according to claim 6 is characterized in that: The outer wall of the sleeve (17) is integrally formed with a plurality of anti-slip convex patterns.

8. The viscous damping device based on displacement amplification according to claim 5, characterized in that: Two shields (26) are slidably mounted on the square box (21), and semicircular openings (2601) are provided on the sides of the two shields (26) close to each other. The tip of the marker pen (18) passes through the two semicircular openings (2601). Two first fixing blocks (27) are fixedly mounted on the top of the square box (21), and second fixing blocks (28) are fixedly mounted on both ends of the square box (21). Two long rods (29) are arranged above the square box (21), and the two long rods (29) are fixedly mounted on the top of the square box (21). The two baffles (26) are fixedly mounted between the corresponding first fixed block (27) and the second fixed block (28); a connecting slider (30) is fixedly mounted on the top of each of the two baffles (26); the two long rods (29) penetrate the corresponding connecting slider (30) and are slidably connected to the corresponding connecting slider (30); a third spring (31) is sleeved on the long rod (29); one end of the third spring (31) is fixedly connected to the connecting slider (30), and the other end is fixedly connected to the second fixed block (28).

9. The viscous damping device based on displacement amplification according to claim 8, characterized in that: The top inner wall and the bottom inner wall of the baffle (26) are both provided with limit slides, and the top and the bottom of the square box (21) are both fixedly mounted with limit slides, and the two limit slides are respectively located in the corresponding limit slides and are slidably connected to the inner walls of the corresponding limit slides.

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