Graded cushioning intelligent viscous damper

Abstract

The utility model discloses a graded cushioning intelligent viscous damper. The graded cushioning intelligent viscous damper comprises a supporting assembly, a direction limiting stopper, a base and a viscous damper body. The upper steel beam, the lower steel beam, the left steel column and the right steel column are connected to form a frame-shaped structure, the supporting assembly is installed in the frame-shaped structure between the steel beams and the steel columns, and the direction limiting stopper is installed between the bottom of the upper steel beam and the top of the supporting assembly. The pair of bases are installed at the two corners of the top of the frame-shaped structure respectively, one ends of the pair of viscous dampers are correspondingly hinged to the pair of bases respectively, the other ends of the pair of viscous dampers are correspondingly hinged to the two sides of the top of the supporting assembly respectively, and the pair of viscous dampers are symmetrically arranged about the center line of the frame-shaped structure; and data monitors are arranged on the pair of viscous dampers. The utility model relates to the technical field of constructional engineering, and can solve the problems that in the prior art, viscous dampers of corresponding specifications are inconvenient to select according to needs, and the cushioning performance of the viscous dampers cannot be known after long-term use.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to a graded shock-absorbing intelligent viscous damper. Background Art

[0002] In recent years, the construction of high-rise buildings and steel structures has increased significantly. Earthquakes and wind loads can be highly destructive to these structures, easily causing severe economic losses and casualties. Building dampers convert the relative displacement and velocity of a vibrating structure into other energy, reducing the vibration response and achieving the purpose of shock absorption. Therefore, seismic dampers play an extremely important role in buildings.

[0003] Viscous dampers are a type of passive velocity damper. Their principle is to utilize the movement of a piston in a damping medium when the structure vibrates, offsetting the energy generated by the structural vibration with the force generated by the piston's movement, thereby achieving structural vibration reduction. In recent years, viscous dampers have been widely used in steel structures.

[0004] In actual use, different earthquake levels and wind loads have different impacts on buildings. This often requires selecting different viscous dampers based on geographical and meteorological factors, which is inconvenient. Furthermore, viscous dampers often need to operate within buildings for extended periods of time, making their damping performance unknown after long-term use. Therefore, a graded intelligent viscous damper is needed to address the existing inconvenience of requiring specific viscous dampers to be selected on demand, as well as the difficulty in determining their performance after long-term use. Summary of the Invention

[0005] The purpose of the utility model is to provide a graded shock-absorbing intelligent viscous damper, which can solve the problem in the prior art of needing to select viscous dampers of corresponding specifications as needed and being unable to understand their shock-absorbing performance after long-term use.

[0006] The utility model is achieved in this way:

[0007] A graded shock-absorbing intelligent viscous damper comprises a support assembly, a direction limiter, a base and a viscous damper; an upper and lower steel beams are connected to a left and right steel column to form a frame structure, the support assembly is installed in the frame structure between the steel beams and the steel columns, and the direction limiter is installed between the bottom of the upper steel beam and the top of the support assembly; a pair of bases are respectively installed at the two corners of the top of the frame structure, one end of a pair of viscous dampers is respectively hinged to the pair of bases, and the other ends of the pair of viscous dampers are respectively hinged to the two sides of the top of the support assembly, so that the pair of viscous dampers are symmetrically arranged about the center line of the frame structure; a data monitor is provided on each of the pair of viscous dampers.

[0008] Each of the viscous dampers includes a piston rod, a first sealing cover, a second sealing cover, a second cylinder body, a damping medium, a first piston, a second piston, a return spring and a first cylinder body; the second piston is slidably arranged in the second cylinder body, one end of the second cylinder body is open and sealed by the second sealing cover, and the other end of the second cylinder body is closed; the first piston is slidably arranged in the first cylinder body, one end of the first cylinder body is sealed through the second sealing cover and is fixedly connected to the second piston, and the other end of the first cylinder body is open and sealed through the first sealing cover; one end of the piston rod is sealed through the first sealing cover and is fixedly connected to the first piston, and the other end of the piston rod is hinged to the base; the return spring is arranged in the first cylinder body and abuts between the first piston and the second piston, and the damping medium is filled between the closed end of the second cylinder body and the second piston.

[0009] A first annular limiter is formed on the inner wall of the first cylinder body, and the first annular limiter is located between the first sealing cover and the first piston.

[0010] An annular friction device is formed on the inner wall of the first cylinder body. The edge of the first piston is in sealing and sliding contact with the inner wall of the annular friction device. The annular friction device is located between the first annular limiter and the second piston.

[0011] A plurality of damping channels are formed at intervals in the second piston. The plurality of damping channels penetrate the second piston along the thickness direction of the second piston, and the plurality of damping channels are located outside the first cylinder body.

[0012] A second annular stopper is formed on the inner wall of the second cylinder body, and the second annular stopper is located on the inner side of the second sealing cover.

[0013] The other end of the piston rod is provided with a front earring, which is hinged to the base through a hinge; a rear earring is formed on the outer wall of the closed end of the second cylinder body, which is hinged to the support assembly through a hinge.

[0014] The support assembly includes an oblique support and a horizontal support; the oblique support is an inverted V-shaped axially symmetrical structure, and the two ends of the bottom of the oblique support are respectively installed at the two corners of the bottom of the frame structure, the bottom of the horizontal support is connected to the top of the oblique support, and the top of the horizontal support is connected to the steel beam located above through a direction limiter; the two ends of the horizontal support are respectively hinged to a pair of rear earrings of the viscous damper through hinges.

[0015] The data monitor comprises a displacement sensor, a force sensor and a data transmitter; the output ends of the displacement sensor and the force sensor are connected to an external data terminal through the data transmitter.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. Since the utility model is provided with a viscous damper, a multi-level shock absorption effect is achieved through the first-level return spring shock absorption and the second-level damping medium shock absorption, which effectively ensures the shock absorption effect and structural safety of the building structure under different earthquake magnitudes and wind loads. There is no need to select different shock absorption dampers according to shock absorption requirements, and the installation is more convenient through the hinged manner.

[0018] 2. Since the utility model is provided with a data monitor, it can monitor displacement and pressure through displacement sensors and force sensors, thereby understanding the working performance of the return spring and damping medium of the viscous damper, and can transmit the monitored data to an external terminal, thereby achieving comprehensive control of the working status of the viscous damper and preventing the viscous damper from failing after long-term use and affecting the safety of the building structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the main view of the utility model's graded shock-absorbing intelligent viscous damper;

[0020] Figure 2 It is a cross-sectional view of the viscous damper in the utility model of the graded shock-absorbing intelligent viscous damper.

[0021] In the figure, 1 steel column, 2 steel beam, 3 oblique support, 4 horizontal support, 5 directional limiter, 6 base, 7 viscous damper, 701 front earring, 702 rear earring, 703 piston rod, 704 first sealing cover, 705 second sealing cover, 706 second cylinder body, 707 damping medium, 708 first piston, 709 second piston, 710 return spring, 711 damping channel, 712 first annular limiter, 713 second annular limiter, 714 annular friction device, 715 first cylinder body, 716 data monitor, 7161 displacement sensor, 7162 force sensor, 7163 data transmitter. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] Please see the attached Figure 1 and attached Figure 2A graded shock-absorbing intelligent viscous damper includes a support assembly, a direction limiter 5, a base 6 and a viscous damper 7; the upper and lower steel beams 2 are connected to the left and right steel columns 1 to form a frame structure, the support assembly is installed in the frame structure between the steel beams 2 and the steel columns 1, and the direction limiter 5 is installed between the bottom of the upper steel beam 2 and the top of the support assembly; a pair of bases 6 are respectively installed at the two corners of the top of the frame structure, one end of a pair of viscous dampers 7 is respectively hinged to the pair of bases 6, and the other ends of the pair of viscous dampers 7 are respectively hinged to the two sides of the top of the support assembly, so that the pair of viscous dampers 7 are symmetrically arranged about the center line of the frame structure; a data monitor 716 is provided on each of the pair of viscous dampers 7.

[0024] A viscous damper 7 is installed in the frame structure formed by connecting the upper and lower steel beams 2 of the building steel structure and the left and right steel columns 1 to play a damping and shock-absorbing role. The base 6 can be made of angle steel and welded to the top of the left and right steel columns 1 to hinge the viscous damper 7. The direction limiter 5 can be used to position the support assembly, and the support assembly is used to hinge the viscous damper 7.

[0025] When the building structure is subjected to vibration, the vibration force is transmitted to the viscous damper 7 through the steel columns 1 and steel beams 2 of the steel structure. While the viscous damper 7 acts as a vibration damper, the data monitor 716 on the viscous damper 7 also monitors the viscous damper 7, facilitating understanding of the performance status of the viscous damper 7 and preventing failure of the viscous damper 7. The data monitor 716 can be adaptively set according to the location where the viscous damper 7 is displaced and subjected to greater force.

[0026] Please see the attached Figure 2 Each of the viscous dampers 7 includes a piston rod 703, a first sealing cover 704, a second sealing cover 705, a second cylinder 706, a damping medium 707, a first piston 708, a second piston 709, a return spring 710 and a first cylinder 715; the second piston 709 is slidably arranged in the second cylinder 706, one end of the second cylinder 706 is open and sealed by the second sealing cover 705, and the other end of the second cylinder 706 is closed; the first piston 708 is slidably arranged in the first cylinder 715, one end of the first cylinder 715 is open and sealed by the second sealing cover 705, and the other end of the second cylinder 706 is closed; The first cylinder body 715 is sealed through the second sealing cover 705 and is fixedly connected to the second piston 709. The other end of the first cylinder body 715 is open and sealed through the first sealing cover 704. One end of the piston rod 703 is sealed through the first sealing cover 704 and is fixedly connected to the first piston 708. The other end of the piston rod 703 is hinged to the base 6. The return spring 710 is arranged in the first cylinder body 715 and abuts between the first piston 708 and the second piston 709. The damping medium 707 is filled between the closed end of the second cylinder body 706 and the second piston 709.

[0027] In the first cylinder 715, the vibration force is transmitted to the piston rod 703, which pushes the first piston 708 toward the second piston 709, compressing the return spring 710 and providing a primary shock absorber. If the vibration force is high, the return spring 710, after being compressed to its limit, can be pushed toward the closed end by the second piston 709 in the second cylinder 706, squeezing the damping medium 707 and providing a secondary shock absorber.

[0028] Two different forms of cushioning structures are used to achieve a secondary cushioning effect. The elastic coefficient of the return spring 710 and the density of the damping medium 707 can be adaptively selected according to actual cushioning requirements. At the same time, more levels of cushioning structures can be set according to actual needs, which is flexible and highly versatile.

[0029] Please see the attached Figure 2 A first annular limiter 712 is formed on the inner wall of the first cylinder body 715 , and the first annular limiter 712 is located between the first sealing cover 704 and the first piston 708 .

[0030] The first annular limiter 712 can be used to limit the range of motion of the first piston 708 to prevent the first piston 708 from squeezing the first sealing cover 704 or escaping from the first cylinder 715 .

[0031] Please see the attached Figure 2 An annular friction device 714 is formed on the inner wall of the first cylinder body 715 , and the edge of the first piston 708 is in sealing sliding contact with the inner wall of the annular friction device 714 , and the annular friction device 714 is located between the first annular limiter 712 and the second piston 709 .

[0032] The annular friction device 714 can be used to increase the sliding resistance of the first piston 708, so that the first-stage shock absorbing structure has a better shock absorbing effect.

[0033] Please see the attached Figure 2 A plurality of damping channels 711 are formed at intervals inside the second piston 709 . The plurality of damping channels 711 penetrate the second piston 709 along the thickness direction of the second piston 709 , and the plurality of damping channels 711 are located outside the first cylinder body 715 .

[0034] The damping medium 707 can enhance flow within the chambers of the plurality of damping channels 711 on both sides of the second piston 709. A medium with high flow resistance can be used for the damping medium 707; the greater the flow resistance, the better the shock absorption effect. The aperture and number of the damping channels 711, as well as the material of the damping medium 707, can be adjusted adaptively based on the shock absorption requirements.

[0035] Please see the attached Figure 2A second annular limiter 713 is formed on the inner wall of the second cylinder body 706 , and the second annular limiter 713 is located on the inner side of the second sealing cover 705 .

[0036] The second annular limiter 713 can be used to limit the range of movement of the second piston 709 to prevent the second piston 709 from squeezing the second sealing cover 705 or escaping from the second cylinder 706 .

[0037] Please see the attached Figure 2 The other end of the piston rod 703 is provided with a front earring 701, which is hinged to the base 6 through a hinge; a rear earring 702 is formed on the outer wall of the closed end of the second cylinder body 706, and the rear earring 702 is hinged to the support assembly through a hinge.

[0038] The front earring 701 and the rear earring 702 can be made of steel to ensure that the hinge point of the hinge shaft is connected reliably.

[0039] Please see the attached Figure 1 The support assembly includes an oblique support 3 and a horizontal support 4; the oblique support 3 is an inverted V-shaped axially symmetrical structure, and the two ends of the bottom of the oblique support 3 are respectively installed at the two corners of the bottom of the frame structure, the bottom of the horizontal support 4 is connected to the top of the oblique support 3, and the top of the horizontal support 4 is connected to the steel beam 2 located above through a direction limiter 5; the two ends of the horizontal support 4 are respectively hinged to the rear earrings 702 of a pair of viscous dampers 7 through hinges such as pins.

[0040] The diagonal supports 3 and horizontal supports 4 can be made of square steel and welded together into a single unit. The inverted V-shaped diagonal supports 3 transmit vibration forces downward to the steel beam 2 below. The horizontal supports 4 are used to mount a pair of viscous dampers 7, which are simultaneously secured coaxially by a direction limiter 5.

[0041] Please see the attached Figure 2 The data monitor 716 includes a displacement sensor 7161, a force sensor 7162 and a data transmitter 7163; the output ends of the displacement sensor 7161 and the force sensor 7162 are connected to a data terminal such as a computer or a smart phone through the data transmitter 7163.

[0042] Preferably, the displacement sensor 7161 can adopt the millimeter-level displacement sensor of the existing technology to collect displacement data, the force sensor 7162 can adopt the pressure sensor of the existing technology to collect pressure data, and the data transmitter 7163 can adopt the communication chip based on 5G communication technology of the existing technology to remotely send displacement data and pressure data.

[0043] Preferably, the piston rod 703, the first sealing cover 704, the second sealing cover 705, the second cylinder body 706, the first piston 708, the second piston 709, the return spring 710, the first annular limiter 712, the second annular limiter 713, the annular friction device 714 and the first cylinder body 715 are coaxially arranged to ensure the secondary shock-absorbing effect to the greatest extent.

[0044] Please see the attached Figure 1 and attached Figure 2 , the working process and working principle of the utility model are:

[0045] When the building is subjected to less vibration, the first piston 708 pushes the return spring 710 to move between the first annular limiter 712 and the second piston 709 inside the first cylinder 715, and rubs against the annular friction device 714. The expansion and contraction of the return spring 710 can achieve the purpose of shock absorption, and the return spring 710 can produce a reset effect.

[0046] When the building vibrates violently, the first piston 708 pushes the return spring 710 to be compressed to the minimum, and pushes the second piston 709 to move between the second annular limiter 713 and the closed end of the second cylinder 706. The damping medium 707 flows between the two chambers in the second cylinder 706 through the damping channel 711, which can produce a further shock-absorbing effect.

[0047] The data monitor 716 is installed on the first sealing cover 704 at the front end of the first cylinder body 715. When the building vibration causes the piston to move, the displacement sensor 7161 and the force sensor 7162 can collect the force and displacement information of the viscous damper 7 and transmit it to the data terminal through the data transmitter 7163 to achieve the purpose of real-time monitoring of the performance of the viscous damper 7.

[0048] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A graded shock-absorbing intelligent viscous damper, characterized by: The invention comprises a support assembly, a direction limiter (5), a base (6) and a viscous damper (7); an upper and lower steel beam (2) and a left and right steel column (1) are connected to form a frame structure, the support assembly is installed in the frame structure between the steel beam (2) and the steel column (1), and the direction limiter (5) is installed between the bottom of the upper steel beam (2) and the top of the support assembly; a pair of bases (6) are respectively installed at two corners of the top of the frame structure, one end of a pair of viscous dampers (7) is respectively hinged to the pair of bases (6), and the other end of a pair of viscous dampers (7) is respectively hinged to the two sides of the top of the support assembly, so that the pair of viscous dampers (7) are symmetrically arranged about the center line of the frame structure; a data monitor (716) is provided on each of the pair of viscous dampers (7).

2. The hierarchical shock-absorbing intelligent viscous damper according to claim 1 is characterized in that: Each of the viscous dampers (7) comprises a piston rod (703), a first sealing cover (704), a second sealing cover (705), a second cylinder (706), a damping medium (707), a first piston (708), a second piston (709), a return spring (710) and a first cylinder (715); the second piston (709) is slidably arranged in the second cylinder (706), one end of the second cylinder (706) is open and sealed by the second sealing cover (705), and the other end of the second cylinder (706) is closed; the first piston (708) is slidably arranged in the first cylinder (715), and the first cylinder (715) is 5), one end of the first cylinder body (715) is sealed and passes through the second sealing cover (705) and is fixedly connected to the second piston (709), and the other end of the first cylinder body (715) is open and sealed by the first sealing cover (704); one end of the piston rod (703) is sealed and passes through the first sealing cover (704) and is fixedly connected to the first piston (708), and the other end of the piston rod (703) is hinged to the base (6); the return spring (710) is arranged in the first cylinder body (715) and abuts between the first piston (708) and the second piston (709), and the damping medium (707) is filled between the closed end of the second cylinder body (706) and the second piston (709).

3. The hierarchical shock-absorbing intelligent viscous damper according to claim 2 is characterized in that: A first annular stopper (712) is formed on the inner wall of the first cylinder body (715), and the first annular stopper (712) is located between the first sealing cover (704) and the first piston (708).

4. The hierarchical shock-absorbing intelligent viscous damper according to claim 2 is characterized in that: An annular friction device (714) is formed on the inner wall of the first cylinder body (715), and the edge of the first piston (708) is in sealing sliding contact with the inner wall of the annular friction device (714), and the annular friction device (714) is located between the first annular limiter (712) and the second piston (709).

5. The hierarchical shock-absorbing intelligent viscous damper according to claim 4 is characterized in that: A plurality of damping channels (711) are formed at intervals in the second piston (709), the plurality of damping channels (711) penetrate the second piston (709) along the thickness direction of the second piston (709), and the plurality of damping channels (711) are located outside the first cylinder body (715).

6. The hierarchical shock-absorbing intelligent viscous damper according to claim 2 is characterized in that: A second annular stopper (713) is formed on the inner wall of the second cylinder body (706), and the second annular stopper (713) is located on the inner side of the second sealing cover (705).

7. The hierarchical shock-absorbing intelligent viscous damper according to claim 2 is characterized in that: The other end of the piston rod (703) is provided with a front earring (701), which is hinged to the base (6) through a hinge; a rear earring (702) is formed on the outer wall of the closed end of the second cylinder body (706), and the rear earring (702) is hinged to the support assembly through a hinge.

8. The hierarchical shock-absorbing intelligent viscous damper according to claim 7 is characterized in that: The support assembly comprises an oblique support (3) and a horizontal support (4); the oblique support (3) is an inverted V-shaped axially symmetrical structure, the two ends of the bottom of the oblique support (3) are respectively installed at the two corners of the bottom of the frame structure, the bottom of the horizontal support (4) is connected to the top of the oblique support (3), and the top of the horizontal support (4) is connected to the steel beam (2) located above through a direction limiter (5); the two ends of the horizontal support (4) are respectively hinged to the rear earrings (702) of a pair of viscous dampers (7) through hinges.

9. The hierarchical shock-absorbing intelligent viscous damper according to claim 1 is characterized in that: The data monitor (716) comprises a displacement sensor (7161), a force sensor (7162) and a data transmitter (7163); the output ends of the displacement sensor (7161) and the force sensor (7162) are connected to an external data terminal via the data transmitter (7163).

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