352 results about "Viscous damper" patented technology

The invention relates to an anti-seismic structure of a building, and particularly discloses an anti-seismic masonry filler wall, a construction method thereof and a buckling restrained brace structure. The anti-seismic masonry filling wall comprises a masonry filling frame jointly defined by a left column body, a right column body, an upper-layer beam body and a lower-layer beam body, and two sets of viscous dampers arranged in the masonry filling frame in a splayed mode. A lower wall body is built in the inner side frame space of the two groups of viscous dampers through bricks; concrete slab strips and upper wall bodies built on the corresponding concrete slab strips through bricks are arranged in outer frame spaces of the two groups of viscous dampers respectively; the middle of each concrete slab strip is connected with the upper-layer beam body through a second concrete constructional column, and the two ends of each concrete slab strip are fixed to the beam side gusset plate assembly and the corresponding column side gusset plate assembly through internally-arranged main reinforcements. The technical difficulty of integral connection of the viscous damper between the beam side gusset plate assembly and the corresponding column side gusset plate assembly is effectively reduced, and the operation efficiency and the anti-seismic quality are improved.

The invention discloses a prestress-free multistage stress self-resetting rotary viscous damper in the field of energy dissipation and shock absorption, which comprises an outer sleeve internally provided with a cavity, a guide rod capable of linearly moving along the axis direction of the outer sleeve, and a primary spring sleeved outside the guide rod, a first partition plate and a second partition plate are arranged in the outer sleeve to divide the cavity into a first cavity, a second cavity and a third cavity, a second-stage stress mechanism is arranged in the first cavity corresponding to the guide rod, a rotary conversion mechanism is arranged in the second cavity, and a rotary viscous energy dissipation mechanism is arranged in the third cavity. The guide rod penetrates through the outer sleeve and the first partition plate and is fixedly connected with the rotation switching mechanism, one end of the first-level spring is connected with the first partition plate, and the other end of the first-level spring is connected with the rotation switching mechanism which is used for converting linear motion of the guide rod into rotation motion to be output. The rotary viscous energy dissipation mechanism is used for dissipating energy generated by the input end of the rotary viscous energy dissipation mechanism due to rotary motion. The anti-seismic self-resetting device has symmetrical tensile and compressive properties, and can realize self-resetting after an earthquake.

The invention discloses a high-performance sealed viscous damping wall. The high-performance sealed viscous damping wall comprises a viscous damper, the steel frames are symmetrically arranged at the two ends of the viscous damper, and the outer side of each steel frame is fixedly connected with a lug plate; the embedded part is arranged on the wall body, a setting hole is formed in the lug plate, and the inner wall of the top hole is connected with the outer wall of the embedded part in a sliding mode and is fixed to the embedded part through a fixing cap in a threaded mode; the gapless spherical hinges are arranged at the joints of the two ends of the viscous damper and the steel frame, and hinge joint of the viscous damper and the steel frame is achieved; the invention belongs to the technical field of civil engineering structure damping walls, and achieves the technical effects that vibration mechanical energy is efficiently converted into heat energy to be dissipated through nonlinear damping force generated when damping liquid in the viscous damper flows through a piston throttling hole, the acceleration and displacement response of the structure are greatly reduced, and the damping effect is good. And the hot zinc spraying and paint anti-corrosion layer ensures long-acting service in a severe environment.

The invention provides a shock insulation tensile device working in the whole process of an earthquake, and relates to the technical field of building earthquake resistance. The vibration isolation device comprises a vibration isolation support fixedly installed between an upper buttress and a lower buttress and further comprises a plurality of tensile viscous dampers, the two ends of each tensile viscous damper are connected with the upper buttress and the lower buttress through universal hinges correspondingly, a C-shaped plate is arranged on one side of each tensile viscous damper, four fixing arms are fixedly installed on each C-shaped plate, and each C-shaped plate is connected with the corresponding fixing arm. The ends, away from the C-shaped plate, of the four fixing arms are connected with a cylinder body of the tensile viscous damper, and two scale plates are installed in the C-shaped plate in a sliding mode. The shock insulation tensile device working in the whole process of the earthquake has the advantages that the shock insulation support can be effectively prevented from being damaged due to the fact that the shock insulation support bears too large tensile force, related personnel can conveniently measure the maximum extension and retraction amplitude of the piston rod of the tensile viscous damper in the earthquake after the earthquake, detection components are flexible to install, and data recording reliability is high.

The utility model discloses a viscous damper, belongs to the technical field of dampers, and particularly relates to a variable index protection damper which comprises an outer cylinder, an overflow valve assembly, a piston, a connecting lug seat and a damping medium. The overflow valve assembly is installed in the piston, the piston is installed in the outer cylinder, the number of the connecting lugs is two, the connecting lugs are fixedly connected with the two ends of the outer cylinder respectively, and the damping medium is filled in the outer cylinder; the overflow valve assembly is composed of a sealing gasket, a pressing spring, a locking nut and a pressing steel ball. The overflow valve assembly starts to take effect at a specific speed through a specific spring structure, compared with a previous structure, the production cost and the construction cost are greatly reduced, a so-called protection type damper cannot be effectively protected on site, meanwhile, the index of the damper is a value before the valve is opened, and the safety of the valve is improved. When the set speed is reached, the index of the damper begins to change, and the variable index is achieved.

The invention provides a performance failure experiment device for a gapless viscous damper, and relates to the technical field of viscous damper performance failure experiments. A control panel is mounted on the front side of the top of the damper positioning part; a damper supporting part is mounted in the center of the top of the damper positioning part; the right side of the damper positioning part is provided with the performance experiment part. A liquid leakage detection part is mounted on the damper positioning part; an extrusion moving part is mounted on the damper positioning part; two groups of movable limiting parts are mounted at the top of the liquid leakage detection part; the viscous damper is supported, and continuous friction between the outer wall of the viscous damper and the experimental device is avoided; the problems that the service life of the experimental device is affected and the outer wall of the viscous damper is abraded due to continuous friction between the outer wall of the viscous damper and the experimental device when a performance failure experiment is carried out due to lack of a supporting structure generally are solved.

The double-step high-performance sealed viscous damping wall comprises a viscous damper and steel frames installed at the two ends of the viscous damper, the outer sides of the steel frames are fixedly connected with lug plates, embedded parts are arranged on the side walls of the lug plates, and the two ends of the viscous damper are hinged to the steel frames through gapless spherical hinges; the viscous damper comprises an oil cylinder, a piston and a piston rod, and the oil cylinder is filled with damping liquid; a variable cross-section structure is arranged on the inner wall of the oil cylinder, so that the middle circulation cross section is larger than the cross sections at two ends, and intelligent grading regulation of damping force along with piston displacement is realized; the invention belongs to the technical field of civil engineering damping walls, and achieves the technical effects that the groove is machined in the middle of the oil cylinder, a double-step energy dissipation mechanism is constructed, when a piston moves in the range of the groove, silicone oil can flow through double channels of the enlarged radial gap and the communicating hole, the piston moves to break through the boundary of the groove due to an earthquake, and the damping effect is achieved. And the gap between the piston and the oil cylinder is compressed instantly, so that the comfort under small earthquakes is guaranteed, and high-efficiency dissipation of pulse energy during large earthquakes is ensured.

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.

The invention discloses a damper anti-seismic system and method based on torsional energy dissipation of hollow round pipes. The damper anti-seismic system comprises a frame beam, a frame column, a cantilever wall and a torsional energy dissipation damper. The frame beams and the frame columns are connected with a building, the cantilever walls are connected with the frame beams, and the torsional energy dissipation dampers are arranged between the paired cantilever walls and connected with the cantilever walls to dissipate energy transmitted by the cantilever walls. According to the damper anti-seismic system, the torsional energy dissipation damper is arranged, a metal structure system is adopted, the liquid leakage risk of a traditional viscous damper is avoided, building vibration energy is evenly consumed through ingenious cooperation of a metal structure, and the anti-seismic performance of a building structure is improved. Due to the arrangement of the multi-section type hollow energy dissipation pipe fittings and the paired energy dissipation pipe fittings, the energy dissipation effect of the torsional energy dissipation damper is improved, the stability of the torsional energy dissipation damper is improved, fatigue fracture at the connecting position is avoided, and the service life of the torsional energy dissipation damper is prolonged.

The utility model provides a variable damping force viscous damper which comprises a cylinder barrel, bushings connected to the two ends of the cylinder barrel, a piston movably arranged in the cylinder barrel, a piston rod penetrating through the center of the piston, with the two ends penetrating through center holes of the bushings and extending outwards, and damping fluid filled in a closed cavity defined by the cylinder barrel, the bushings, the piston and the piston rod. An annular outer gap is formed between the outer wall of the piston and the inner wall of the cylinder barrel, the variable-diameter guide rod is arranged in an open hole of the piston in a penetrating mode, and the two ends of the variable-diameter guide rod are fixedly arranged on the lining in an inserted mode. The inner diameter of the open hole is larger than the outer diameter of the first rod body and the outer diameter of the second rod body, and when the piston moves to the first rod body and the second rod body, a first annular inner gap and a second annular inner gap which are different in width can be formed between the inner wall of the open hole and the outer wall of the variable-diameter guide rod, so that the overflowing area of a damping liquid flowing channel is changed, and the variable damping force effect is achieved.

The invention discloses a wall type Z-shaped metal torsion tube damper anti-seismic system and method. The wall type Z-shaped metal torsion tube damper anti-seismic system comprises a frame beam, a frame column, a cantilever wall and a Z-shaped metal torsion tube damper. The frame beams and the frame columns are connected with a building, the cantilever walls are connected with the frame beams, and the Z-shaped metal torsion tube dampers are arranged between the paired cantilever walls and connected with the cantilever walls so as to dissipate energy transmitted by the cantilever walls. According to the damper anti-seismic system, the Z-shaped metal torsion tube damper is arranged to replace a traditional mild steel metal damper and a viscous damper to conduct damping design of a building structure, the problem that the low-cycle fatigue performance of the traditional metal damper is poor is solved, the oil leakage risk of the viscous damper is avoided, and the anti-seismic performance of the building structure is improved. Moreover, due to the structural design in the damper, the influence of the bending and shearing effect on the deformation of the torsion tube under the action of an axial load is eliminated, so that the section of the torsion tube is always kept a stable circular section in the hysteresis energy consumption period of the torsion tube, and the energy consumption efficiency is ensured.

The utility model relates to the technical field of power transmission lines of a power grid, and provides a vibration attenuation suppression device for connecting a power transmission tower and an insulator, which comprises a friction damping box, a friction damping fin, a connecting hook, a first mounting hook, a second mounting hook, a plurality of springs, a viscous damper, a universal support, a hook support and a mounting support, the friction damping box is provided with a mounting cavity and a receding opening. The friction damping fin is mounted in the mounting cavity; the hook supports and the friction damping fins are arranged at intervals; a connecting hook is arranged on the hook support; a plurality of universal supports are mounted on the hook support; a plurality of mounting supports are mounted on the friction damping fin; a plurality of viscous dampers are connected in parallel between the universal support and the mounting support; the plurality of first mounting hooks are arranged on the friction damping fin; a plurality of second mounting hooks are arranged on the friction damping box; and a spring is hung between the first mounting hook and the second mounting hook. According to the utility model, the structure of the vibration reduction suppression device is optimally designed, so that the vibration reduction effect is better.

The invention discloses a replaceable energy dissipation type prestress assembly type beam-column joint and a construction method thereof. The replaceable energy dissipation type prestress assembly type beam-column joint comprises a prefabricated column, a prefabricated beam, an angle steel connecting piece, a viscous damper, FRP cloth and a prestress tensioning piece. The FRP cloth is pasted to the joint of the prefabricated beam and the prefabricated column, angle steel connecting pieces fixed to the prefabricated beam and the prefabricated column are arranged on the outer side of the FRP cloth, and the two angle steel connecting pieces on the upper side are provided with viscous dampers arranged in the inclined direction. The prestressed tensioning part is of a downwards-protruding arc-shaped structure, a first hole channel and a second hole channel which are matched with the prestressed tensioning part are formed in the prefabricated beam and the prefabricated column respectively, anchoring blocks are arranged at the positions, corresponding to the first hole channel, of the upper end face of the prefabricated beam, the prestressed tensioning part is arranged in the hole channels in a penetrating mode, and the two ends of the prestressed tensioning part are anchored to the corresponding anchoring blocks respectively. The FRP cloth is adopted to enhance the integrity and durability of the joint, the downwards-protruding prestress tensioning piece can resist the sagging moment of the joint and cooperates with the viscous damper to efficiently dissipate energy, and rapid repairing is achieved by replacing the energy dissipation connecting piece.

The utility model provides a kind of viscous damper mounting structure, including first mounting beam and second mounting beam, the first mounting beam is equipped with accommodating space, the inboard of accommodating space is equipped with viscous damper, the upper of second mounting beam is provided with first embedded part, the bottom of first embedded part is fixedly installed with fixed frame.The utility model is through the setting of first connecting rod, mounting sleeve, second connecting plate and connecting mechanism, when using, the cylinder barrel of viscous damper and fixed frame branch can be movably connected, the movable connection of both can also realize the movable connection of cylinder barrel of viscous damper and mounting beam, allow cylinder barrel to be multi-directional displacement with building structure in earthquake and not be restrained, while avoiding that cylinder barrel bears too large bending moment and torque, reduce the problem that cylinder barrel appears deformation or damage, to effectively guarantee the performance and durability of viscous damper.

This utility model discloses an anti-loosening fastening device for tractor units, belonging to the field of tractor unit technology. The anti-loosening fastening device includes a front connecting plate and a rear connecting plate. A movable combined arm is installed at the rear end of an adjusting frame, and a viscous damper is installed between the two movable combined arms. Hydraulic dampers are installed between the front and rear connecting plates and the adjusting frame. This utility model solves the problem that existing tractor unit fastening devices become loose due to vehicle vibrations, failing to maintain a stable working state. By connecting the hydraulic damper and the viscous damper, this utility model achieves a good connection between the front and rear connecting plates. During tractor turning, the front and rear connecting plates are subjected to tension and traction forces, causing movement. During this movement, the hydraulic damper and the viscous damper limit movement and reduce vibration, effectively achieving an anti-loosening effect.

The utility model relates to the technical field of dampers, and discloses a viscous damper which comprises bases, the tops of the two bases are fixedly connected with a supporting plate, a limiting mechanism is arranged in the supporting plate, the adjacent side of the outer portion of the limiting mechanism is rotationally connected with a damping body, the tops of the bases are provided with cleaning mechanisms, and the cleaning mechanisms are arranged on the bases. And the cleaning mechanism comprises two supporting blocks, connecting blocks are fixedly connected to the exteriors of the two reset springs, sliding rings are fixedly connected to the adjacent sides of the exteriors of the two connecting blocks, and cleaning brushes are fixedly connected to the interiors of the sliding rings. When the damping body is not used, dust and impurities are prone to being accumulated on the surface of the damping body, the performance of the damper is affected, at the moment, movement of the damping body drives the sliding ring and the cleaning brush to move synchronously, the cleaning brush is tightly attached to the surface of the damping body, the cleaning efficiency is improved through the design, and the stability and reliability of the damper are enhanced; and long-term high-efficiency operation is ensured.

The invention relates to an adjustable negative stiffness damping vibration attenuation device and a mounting method thereof, and belongs to the field of structural vibration control. Comprising an adjustable negative stiffness component and a viscous damper component. The adjustable negative stiffness component comprises a connecting plate, a movable shaft, a fixed rod, a fixed plate, a sleeve, a connecting piece, a roller, a cam structure, a movable bedplate, an outer annular magnet, an inner annular magnet, a precision gasket and a shaft check ring; the viscous damper component comprises a front lug ring, a damper main body and a rear lug ring; according to the wide-displacement-domain magnetostriction-cam roller type adjustable negative stiffness damping vibration attenuation device, the dual advantages of a magnetostriction negative stiffness mechanism and a cam roller negative stiffness mechanism are creatively fused, stable negative stiffness can be achieved in a wide displacement domain, the negative stiffness characteristic is adjustable, different working condition requirements can be met, and the vibration attenuation effect is good. Due to the unique negative stiffness damping characteristic, the vibration damper has a wide application prospect in vibration control of structures such as buildings and bridges.

The utility model discloses a shockproof damping device for a bridge, and relates to the technical field of bridge damping. The damping device comprises two mounting plates, a mounting seat is fixedly connected between the two mounting plates, a viscous damper is movably connected to the inner side of the mounting seat through a rotating shaft, and a damping support is fixedly connected to one side of each mounting plate; a main buffering assembly is arranged on one side of the mounting plate and comprises a supporting ring fixedly connected to one side of the damping support. Through the coupling effect of the friction dampers of the main buffering assembly and the first springs, dual energy consumption of coulomb friction and elastic deformation is generated in the initial vibration stage, the peak acceleration is effectively reduced, the eight friction dampers distributed at equal angles form an annular buffering array, omni-directional dissipation of horizontal vibration in any direction is achieved, and the vibration damping effect is improved. The three-dimensional supporting structure of the damping support is matched, and the stress concentration phenomenon of a traditional one-way damper is eliminated.

The utility model provides an integrated viscous damper mounting device, which belongs to the technical field of building damping equipment and comprises a viscous damper, connecting devices are arranged at the left end and the right end of the viscous damper, the connecting devices are fixedly connected with the viscous damper, and the connecting devices are fixedly connected with the viscous damper. The sides, away from the viscous dampers, of the connecting devices are fixedly connected with embedded parts, and prefabricated frames are arranged on the outer sides of the connecting devices. According to the integrated viscous damper installation device, the problem that when a viscous damper is constructed, the positioning and paying-off precision cannot be guaranteed is solved, the problem that the viscous damper is assembled in the middle of a cantilever wall in the later period is solved through early-stage assembly and installation, and compared with a traditional installation mode, the device is assembled in advance and installed at a time, and the installation efficiency is greatly improved. The tedious steps of sequential assembly in the later period are omitted, the prefabricated frame is directly placed in the middle of the viscous damper wall, secondary positioning and paying-off on the viscous damper wall are omitted, manpower and material resources are greatly saved, and the construction efficiency is improved.

The utility model discloses a viscous damper installation platform which comprises a chassis, a vertical rod fixedly connected to the right end of the chassis, an inclined strut fixedly connected to the left side of the chassis, a steel wire rope and a supporting plate, the steel wire rope is connected with a winch and fixedly connected with a transverse sleeve, the supporting plate is arranged at the right end of the vertical rod, and the inclined strut is fixedly connected with the left side of the chassis. The supporting plate is inserted into the middle of the transverse sleeve, and the supporting plate forms a telescopic structure at the right end of the vertical rod. According to the viscous damper mounting platform, the transverse sleeve can be driven to ascend and descend at the upper end of the chassis through the steel wire rope according to actual mounting requirements, then the mounting height of the viscous damper can be adjusted conveniently, the transverse sleeve is combined to drive the vertical sleeve and the vertical rod to slide, and the stability of the lifting process is improved; and the lead screw is combined to drive the supporting plate to stretch out and draw back at the right end of the vertical rod, and the viscous damper is conveniently driven to stretch into the wall to reach the corresponding position to be welded and fixed.

The utility model relates to damper support technical field discloses a viscous damper support structure for public building shock absorption, including sliding frame, the inside sliding connection of sliding frame has sliding block no.

The utility model relates to the technical field of shock resistance, and discloses a prestress viscous damper which comprises a cylinder body, a first piston is connected inside the cylinder body in a sliding mode, a guide rod is fixedly connected inside the first piston, a second piston is fixedly connected outside the guide rod, and a fixing ring is fixedly connected outside the guide rod. The left sides of the fixing rings are fixedly connected with supporting rods, the supporting rods are sleeved with telescopic springs, the left sides of the multiple supporting rods are fixedly connected with moving rings, the multiple supporting rods are slidably connected with supporting rings, the outer portion of the cylinder body is fixedly connected with a cooling assembly, and the cooling assembly comprises a hollow ring. An inner cavity is formed in the hollow ring, and a heat conduction plate is fixedly connected to the outer portion of the hollow ring. According to the viscous damper, the prestress of the viscous damper is improved, then the displacement response of the structure is effectively restrained, and the risks of cracking of a building wall and damage to beam-column joints are greatly reduced.

The present application provides an anti-seismic explosion-proof type pry dress refueling device, including a refueling machine, an oil unloading pump and a barrier explosion-proof double-layer oil storage tank, the refueling machine and the oil unloading pump are arranged at one end of the inside of the anti-seismic frame, the outside of the barrier explosion-proof double-layer oil storage tank is arranged in the inside of the anti-seismic frame through a plurality of oil tank anti-seismic units, the bottom surface of the anti-seismic frame is arranged on the top surface of the shock isolation base, the bottom surface of the shock isolation base is arranged on the top surface of the main base in the middle, the outside of the shock isolation base and the top surface of the main base are provided with a protective weir, a plurality of lead core rubber shock isolation supports in the shock isolation base are deformed to isolate a large amount of seismic energy, only a small part of the seismic energy is transmitted to the anti-seismic frame; the remaining seismic energy on the anti-seismic frame is absorbed by the viscous damper in the frame anti-seismic unit; when the anti-seismic frame shakes, the plurality of oil tank anti-seismic units reduce the shaking of the barrier explosion-proof double-layer oil storage tank, thereby further reducing the risk of tank explosion.

This invention discloses a longitudinal electromagnetic-viscous composite damping system for long-span bridges, comprising electromagnetic dampers and viscous dampers arranged in parallel with the vibration reduction / shock direction along the longitudinal direction of the bridge. One end of the viscous damper is connected to a first bridge structure, and the other end is connected to a second bridge structure via a fusible-locking device. The fusible-locking device includes a mounting base, a lower toothed plate, and an upper toothed plate. The mounting base is fixedly installed on the first bridge structure and has a sliding groove extending longitudinally along the bridge. The lower toothed plate is installed in the sliding groove, and the other end of the viscous damper is connected to the lower toothed plate. The upper toothed plate has positioning teeth, and the lower toothed plate has positioning grooves. A lifting mechanism is connected between the upper toothed plate and the mounting base to move the upper toothed plate up and down to insert or remove the positioning teeth from the positioning grooves. This system can achieve integrated vibration and shock control by switching between different damper operating states, and has the advantage of strong load adaptability.

The utility model discloses a pore type viscous damper which comprises a cylinder barrel, sealing end covers, pistons and a piston rod, the sealing end covers and the pistons are arranged at the two ends of the cylinder barrel, the piston rod is installed in the cylinder barrel and penetrates through the two sealing end covers and the pistons, and the pistons comprise three sub-pistons which are the first piston, the second piston and the third piston. The piston divides the cylinder barrel filled with the damping liquid into a first cavity and a second cavity, a damping hole extension pipe is arranged between the first piston and the second piston, the third piston is arranged between the first piston and the second piston, the damping hole extension pipe penetrates through the third piston, and the third piston is fixedly connected with the damping hole extension pipe. The length of the damping hole can be effectively increased, the length of the damping hole can be self-adaptively adjusted, and the damper is prevented from being damaged.

The present application relates to building energy dissipation and shock absorption technical field, disclose a kind of based on optimal additional damping ratio viscous damper parameter design method, including the following steps: the first-order natural frequency of non-damping structure is calculated;The vertex displacement amplitude of structure under the action of frequently occurring earthquake is calculated;The inter-story displacement amplitude of the i floor of structure arranged with damper and the corresponding inter-story displacement amplitude average are calculated;The first-order equivalent modal stiffness of viscous damper connecting component is calculated;The traversal numerical solution of damper damping index is calculated;The value of damping coefficient when additional damping ratio obtains maximum is calculated and so on step.The present application can calculate the specific value of viscous damper damping coefficient and damping index when additional damping ratio obtains maximum according to the basic parameter of structure, and the corresponding maximum value of additional damping ratio is calculated, and it has important significance to damage control and optimization design of damper parameter of viscous damper shock absorption structure under the action of earthquake.

The utility model discloses a turbo type viscous damper, which relates to the technical field of building construction, and comprises an oil cylinder structure and turbo type piston structures, a piston rod is horizontally arranged in the oil cylinder structure, and the turbo type piston structures are arranged at one end of the piston rod and are provided with two groups. According to the turbo type viscous damper, two sets of turbo type piston structures are installed at one end of the piston rod, the structural arrangement of two sets of turbine blades is utilized, and a sealing ring is installed on the surface of a supporting ring in a matched mode; while the high-damping bearing provides axial rotation activity for the whole turbo type piston structure, sufficient structural viscous damping performance can be provided for the whole device through cooperative use of the structures, and interference protection of damping buffering can be further provided for the whole device through structural arrangement of the pressure accumulation structure and the control valve; and the stability and the service life of the device are ensured.

The utility model relates to the technical field of steel structures, and discloses a production base steel structure anti-seismic structure which comprises a plurality of steel columns and steel beams, each steel beam is connected and installed between every two adjacent steel columns, and viscous dampers are installed between every two transverse steel columns and the two ends of each steel beam. A supporting assembly is installed between every two transverse steel columns close to the top ends, a connecting assembly is installed between every two longitudinal steel columns, each supporting assembly comprises a shed frame and two fixing cylinders, and the two fixing cylinders are fixedly installed at the positions, close to the two ends, of the tops of steel beams respectively. Through the clamping seats and the fixing cylinders, rapid installation and fixation of the shed frame are facilitated, outward force can be provided for the steel beams, pressure in the middles of the steel beams is reduced, and the inner sides and the outer sides of the steel columns are evenly stressed; and through the connection of the steel core and the supporting legs, the connection and anti-seismic performance of the steel column is improved, and the fixation between the two longitudinal steel columns is enhanced.

A modularized anti-seismic system capable of enhancing the anti-seismic capacity of a cultural relic cabinet comprises a supporting connecting assembly (1), a sealing type viscous damper assembly (2), a splicable threaded galvanized pipe assembly (3) and a cultural relic cabinet body connecting assembly (4). The cultural relic cabinet group is combined into a modular structure through the cultural relic cabinet body connecting assembly (4), the modular structure is connected with a wall body or a frame column through the supporting connecting assembly (1), and an integrated modular structure of the cultural relic cabinet group and the wall body or the frame column is formed. A sealing type viscous damper assembly (2) is additionally arranged between the supporting and connecting assembly (1) and the cultural relic cabinet group. The cultural relic cabinets can be connected into a cultural relic cabinet group, an integrated modular structure of the cultural relic cabinet group and the wall body or the frame column is formed, and the better protection effect on the storage type cultural relics is achieved.

The present invention discloses a bridge vibration reduction / vibration system, comprising a viscous damper and a mild steel damper arranged in the longitudinal direction of the bridge in the vibration reduction / vibration direction. The mild steel damper is mounted on a first bridge structure, one end of the cylinder of the viscous damper is connected to the second bridge structure, a horizontal slide extending in the longitudinal direction of the bridge is mounted on the first bridge structure, a first sliding member and a second sliding member that can slide independently of each other are matched and slidably mounted in the horizontal slide, the other end of the cylinder is fixedly connected to the first sliding member, the piston rod of the viscous damper is fixedly connected to the second sliding member, the second sliding member is connected to the upper cover of the mild steel damper, and a locking assembly is further provided between the first and second sliding members to lock the relative positions of the two. The present invention uses the displacement value of the upper cover of the mild steel damper as a locking control index, and the locking timing is accurate, so that the switching of the working states of the viscous damper and the mild steel damper can be accurately achieved.