1020results about How to "Play a shock absorbing effect" patented technology

The invention discloses a track walking device having an independent damping function. The track walking device comprises a track frame, a driving wheel, a guide wheel, a plurality of supporting wheels and a track. The driving wheel is rotatably arranged on the track frame and is in transmission connection with the track, and the track is sleeved outside the driving wheel, the guide wheel and the plurality of supporting wheels. The guide wheel is rotatably arranged on the track frame, the plurality of supporting wheels are located below the track frame and are arranged at intervals along the front and back walking directions of the track walking device, and each supporting wheel is connected with the track frame through a supporting wheel shaft, an oscillating rod and an oscillating shaft. One ends of the oscillating rods are rotatably connected with the track frame through the oscillating shafts, and the other ends of the oscillating rods are rotatably connected with the supporting wheels through the supporting wheel shafts. The track walking device is further provided with a plurality of damping units, and each damping unit corresponds to one oscillating shaft. Accordingly, compared with the prior art, the track walking device has good damping performance and terrain self-adaption capability.

The invention relates to an ultra high speed test CRH train bogie and belongs to the field of railway vehicle bogie devices with elastic deformation buffering capacity, the problem of welding stress centralization is solved by a horizontal and longitudinal beam integrated type tray frame, and a wing-shaped elastic support arm of an elastic frame can have a damping effect by own elastic deformation. According to the novel bogie, by the aid of matching usage of the elastic frame and motor suspension devices with vibration absorption functions, high cut-down and inhibition effects can be realized on motor vibration, and accordingly, the vibration frequency control difficulty of a power system is reduced greatly and surplus vibration damping buffering components can be effectively cut down, so that redundant components can be simplified greatly, the structure dimension is shortened, and the weight is reduced. Master pin backward titling structures of traction wheel sets can swing consistently in S shapes. The ultra high speed test CRH train bogie can overcome inherent mutual contradiction of dual requirements on two aspects of lightweight design and speed lifting of a 500km / h ultra high speed train and is a novel breakthrough in the field of localization ultra high speed bogies.

The invention relates to the technical field of mechanical equipment, and discloses a grinding machine with the dust removal function. The grinding machine comprises a grinding box, a motor is fixedlyarranged on the inner top wall of the grinding box, the output end of the motor is fixedly connected with a transmission shaft, the end, away from the motor, of the transmission shaft is fixedly provided with a grinding wheel, and a worktable is fixedly connected to the middle of the inner bottom wall of the grinding box. According to the grinding machine with the dust removal function, through an air inlet pipe, under the effect of an air blower, dust in the grinding box can be blown, through the effect of an exhaust fan, the dust enters a dust collection box through a dust suction pipe anda connecting pipe, through a sliding plate, under the effect of a connecting rod, a sliding block is pushed to move towards the two sides, under the effect of a spring, a supporting column can be reset, noise generated during work can be avoided, it is ensured that the work environment is better, and work fatigue of a worker is reduced.

The invention discloses a positioning device for pipeline blockage points. The positioning device for the pipeline blockage points comprises a spherical pig, a GPS positioner, an elastic storage type claw, a fiber optic sensor, a signal collection device and a computer display device. The GPS positioner and the fiber optic sensor are arranged on the spherical pig, the elastic storage type claw is arranged in a hole in the spherical pig, the fiber optic sensor is connected with the computer display device through the signal collection device, the inner end of the elastic storage type claw is connected with the inner wall of the spherical pig through a spring, the outer end of the elastic storage type claw is locked with the outer wall of the spherical pig through a buckle, the GPS positioner comprises a shell, and a GPS chip, a RFID chip, an electronic compass chip, a control circuit board and a lithium battery are arranged in the shell. The positioning device for the pipeline blockage points is simple in structure, convenient to use, reliable in use, accurate in positioning and strong in practicability, and capable of positioning in time and performing breakover.

The invention discloses a stable oscillating stirring kettle which comprises a kettle body, a sliding toothed plate and a sliding sleeve, wherein an upper cover is arranged at the upper end of the kettle body; a strip-type hole, a sliding groove, the sliding toothed plate and sliding bars are formed in and arranged on the upper cover; a placement plate is arranged on the rear side above the kettle body; a rotating shaft, a rotating disc, a sliding square rod, the sliding sleeve, a first motor, a driving rotating rod and a transmission connecting rod are arranged on the front surface of the placement plate; and a second motor, a stirring shaft, stirring fan blades, vertical cleaning blades, a support rod, a rotating support block, a rotating steel ball and an extension spring are arranged at the lower end of the sliding toothed plate. According to the stable oscillating stirring kettle, the motor drives the rotating disc to perform reciprocating oscillation, so that the second motor and the stirring shaft are driven to perform horizontal oscillation and perform material stirring by matching of the sliding sleeve and the sliding toothed plate; and the support rod, the rotating support block, the rotating steel ball and the extension spring are additionally arranged, so that the stability can be improved, and better stirring efficiency can be obtained.

The invention relates to the technical field of forklift batteries, and discloses an anti-shock and anti-falling forklift battery. The forklift battery comprises a protective box, wherein the bottom wall of an inner cavity of the protective box is fixedly equipped with two supporting legs. The anti-shock and anti-falling forklift battery is provided with pulling springs and sliding blocks, the battery will press a second U-shaped block and limit blocks when there is a shock so as to enable the second U-shaped block to drive supporting rods to press the sliding blocks downward, and then the sliding blocks move towards the left and right, so that the pulling springs are driven to stretch, the pulling springs can play a role of shock absorption, the battery is prevented from being contacted with the bottom wall of the inner cavity of the protective box to result in great shock and collision. The downward movement of the limit blocks will press fixing blocks to move downward, and the pulling springs will also be pressed to move downward, thereby being capable of playing a good anti-collision and shock absorption effect on the battery, preventing the bottom of the battery from resultingin collision and shock with the bottom wall of the protective box, playing a good role of shock absorption and shock resistance, and enabling the service life of the battery to be longer.

The invention discloses a UAV landing shock absorbing device, which includes a turntable, and the center of the upper end surface of the turntable is connected to the UAV body through a second spring. Inside, oil is installed under the first piston. When the drone body lands on the ground from the air, the sixth spring is stretched, converting the kinetic energy into the internal energy of the sixth spring, which has a shock absorption effect, and inserts The rod moves downward relative to the sleeve, and the oil is poured into the cylinder through the first through pipe, so that the second piston moves downward to inflate the air bag, which further acts as a buffer. The drone body and multiple first springs The connection, the connection between the first pipe and the third spring, also converts the kinetic energy of the drone body when it lands, protecting the drone body from damage and improving the service life of the drone body.

The invention belongs to the technical field of pipeline detection, and discloses a natural gas pipeline quality detection device. The natural gas pipeline quality detection device comprises an annular block, wherein an annular groove is formed in the front of the annular block, a rotating motor is fixedly mounted in the annular groove, and the rotating motor extends to the outer side of the annular groove. While in use, according to the inner diameter of a natural gas pipeline to be detected, the lengths of four second telescopic members are simultaneously adjusted through an adjusting assembly, so that four travelling wheels can be in contact with the inner wall of the natural gas pipeline, and the length of a first telescopic member is adjusted, so that a miniature high definition digital camera is close to the inner wall of the pipeline; and through cooperation of a driving motor, a walking shaft and the travelling wheels, the entire device is driven to move in the pipeline, and atthis time, the motor rotates to drive the rotating shaft, the first telescopic member and a mounting block to rotate so as to drive the miniature high definition digital camera to shoot the inner wall of the pipeline, and perform comprehensive detection on the quality of the inner wall of the pipeline. The natural gas pipeline quality detection device is simple to operate, and good in effects, and can be suitable for detection of the inner walls of pipelines of different sizes.

The invention discloses a medical beauty treatment operating table comprising a table body; the table body bottom center is connected with a movable seat; the bottom of a damping spring is connected with a support plate; the support plate top center is connected with a sleeve; a slide groove is respectively arranged on two sides in a through pipe; a stop plate is arranged in the through pipe cavity; two sides of the stop plate are respectively provided with a connecting rod; the outer side of a bead is movably connected with the inner side of the slide groove; the stop plate top is connected with a second support spring; the second support spring top is connected with the bottom of the table body; the stop plate bottom is connected with an electric push rod; the left side of the support plate bottom is connected with a fixed block; a nut seat is movably clamped in a card slot; the inner side of the nut seat is screwed with a thread rod; the right side of the thread rod is connected with an electric motor. The medical beauty treatment operating table has cost advantages, thus solving the problems that a high cost operating table will reduce the operating table practicality.

The invention discloses a red phosphorus dipping device for match production, and relates to the technical field of match processing. With the device, the problem that a common dipping device in the prior art is simple in working mode, mainly completes the dipping action through power, does not have the function of guaranteeing the uniformity of dipping, and does not have the structure or functionof leveling a dipping material, and therefore it is not beneficial for quickly making matches is solved. The red phosphorus dipping device for match production comprises a base. A vertical plate is fixedly arranged on the rear side of the base through bolts, and the vertical plate is of an L-shaped structure and is arranged inverted. Two guide rails are fixedly arranged on the two sides of the inner side of the vertical plate through bolts, and a sliding block is arranged on the rear side of each of the two ends of the driving plate and is in sliding connection with the corresponding guide rail. Because a rack, a gear, a ratchet and a winding mechanism are arranged, the dipping device can have the function of carrying out one-way force accumulation to overturn an oscillation mechanism; and in the process that the gear goes up, the winding mechanism and the ratchet are of a forward structure and do not move synchronously with a barb, and it is guaranteed that no influence is caused tothe winding mechanism in the ascent process.

The invention discloses a support for chemical pipelines, which comprises a first fixing groove, a second fixing groove and a shock absorbing device, a second fixing groove is arranged below the first fixing groove, the bottom end of the first fixing groove and the second The top of the groove is connected by bolts, and the outer wall of the bottom of the second fixed groove is equipped with a shock absorbing device, which can play a shock absorbing effect when the pipeline shakes due to pressure changes or vibration of the connected equipment. The lower end of the shock absorbing device is connected with a base , the inner wall of the first fixing groove is connected with a worm through a bearing, the side wall of the worm is keyed with a worm wheel, the bottom side wall of the worm wheel is rotatably connected with a support rod, the lower end of the support rod is welded with a fixed block, and the inner wall of the fixed block is glued with a pad Sheets and gaskets can play the role of anti-slip and shock absorption. The lower end of the worm is equipped with a baffle, which can prevent the support rod from rotating with the rotation of the worm wheel. When using it, the inner diameter of the support frame can be adjusted according to different pipe diameters. It is suitable for many Various types of chemical pipelines.

The invention discloses a punching machine with a shock absorption function. The punching machine comprises a workbench. The bottom part of the workbench is fixedly connected with a rubber column; the bottom part of the rubber column is fixedly connected with a shock absorption device; the shock absorption device comprises a shock absorption plate, rubber balls, springs and a groove base plate; the bottom part of the groove base plate is fixedly connected with a base; the left side of the top part of the base is fixedly connected with a rack; and a controller is arranged on the front surface of the rack, and is electrically connected with a motor and an air cylinder. According to the punching machine with the shock absorption function, through arranging the shock absorption device and the rubber column, when the punching machine is operated, the shock absorption device and the rubber column can play a good shock absorption role in the whole shock-absorption punching machine, the stable operation of the machine is ensured, the physical and psychological health of a user is protected, and in addition, the service life of the shock-absorption punching machine can be also prolonged; and through arranging a layer of sound absorption sponge in a machine box, the noise produced when the machine is working can be reduced.

The invention discloses a polishing device with high safety for industrial design, and relates to the technical field of industrial design. The polishing device with high safety for industrial designcomprises a box; a support table is fixedly connected to the bottom of the box; two support legs are fixedly mounted at two ends of the bottom surface of the support table; an inlet is formed in the center of the front surface of the box; a cylinder is fixedly mounted in the center of the top surface of an inner cavity of the box; and a piston rod is mounted at the bottom end of the cylinder. In the polishing device with high safety for industrial design, through improvement of an element polishing device, the cylinder and a speed reducing motor are cooperatively used to conveniently polish elements, so that the labor intensity of workers can be reduced to a greater extent; and an exhaust fan and a filter box are cooperatively used to finish filtration of element polishing dust, so that the harm to workers by the dust is reduced to a greater extent, and the personal safety of the workers is improved.

The invention discloses a deformation adaptive macromolecule bearing composite material and a preparation method and application thereof, and belongs to the technical field of sliding bearings. The problems that a rubber sliding bearing friction layer in the prior art is large in low-speed friction coefficient and has stick slip noise, and a resin sliding bearing friction layer cannot adapt to stress concentration and bearing damage caused by shaft deformation are solved. A backing enhancement layer, an elastic middle layer and a friction surface layer are tightly arranged from outside to inside in sequence according to the composite material. The backing enhancement layer is prepared from fiber reinforced resin composite materials, the elastic middle layer is prepared from flexible polyurethane, the hardness value of the elastic middle layer is Shaw 70-85 A, the friction surface layer is prepared from the composite material of rigid polyurethane and lubricating agent, and the hardness value of the friction surface layer is Shaw 50-80 D. The composite material can produce adaptivity for deformation of a shaft, has low water lubrication and dry friction coefficients, produces no stick slip noise under low-speed conditions, and is applicable to being used as the sliding bearing friction layer material.

The invention relates to the technical field of building device damping, and discloses a building device with an efficient damping function. The building device with the efficient damping function comprises a mounting bottom frame, wherein a device body is arranged inside the mounting bottom frame; and buffering cylinders are fixedly connected to the left side and the right side of the inner bottom wall of the mounting bottom frame, a buffering plate is arranged in the two buffering cylinders respectively, a buffering rod is fixedly connected to the tops of the two buffering plates respectively, and both the top ends of the two buffering rods penetrate through and extend to the tops of the buffering cylinders. According to the building device with the efficient damping function, when the device body is vibrated, buffering springs and compression springs can effectively play a role in buffering through the buffering cylinders; and when the device body is vibrated, connecting cylinders can be pressed downwards, the friction force between bearing blocks and vertical rods can be reduced through first pulleys, and extrusion springs can well play a role in buffering so that the buildingdevice can be more efficiently subjected to vibration reduction.

The invention relates to a full-automatic building indoor floor tile laying machine which comprises a crawler traveling device, wheeled traveling devices, an electric turntable, a redundancy parallelization mechanism, a suction device and a tile seam putty filling device. The wheeled traveling devices are symmetrically arranged on the left side and the right side of the crawler traveling device respectively, the electric turntable is positioned at the center of the upper end of the crawler traveling device and fixedly connected with the crawler traveling device, the redundancy parallelization mechanism is positioned between the electric turntable and the suction device, the lower end of the redundancy parallelization mechanism is connected with the electric turntable while the lower end of the same is connected with the suction device, and the tile seam putty filling device is positioned right above the suction device. The full-automatic building indoor floor tile laying machine integrates various functions of compound traveling, multi-degree-of-freedom direction adjusting, floor tile sucking and tile seam puffy filling fixing, can be used for laying floor tiles for municipal sidewalks and is high in automation level, laying speed and laying attractiveness, and the problem that existing floor tile laying is large in occupied space, low in laying efficiency and high in laying cost is solved.

The invention discloses a shock absorption and heat dissipation power cabinet for power engineering, which belongs to the technical field of power cabinets, and comprises a cabinet body, a cooling liquid box, a liquid changing assembly, a machine base, a reciprocating screw rod, a cleaning assembly and a shock absorption spring, wherein a cabinet door is hinged to the exterior of the machine base through a hinge, and a driving motor and the cooling liquid box are fixedly installed on the outer walls of the two sides of the machine base respectively; an inner cabinet base is fixedly installed in the machine base. The cooling liquid pipe is mounted inside, and the cleaning assembly capable of reciprocating is mounted in the power cabinet base, so that when the power cabinet is used in ordinary times, the driving motor can be started and can drive the mounting shaft to rotate, thereby driving the reciprocating lead screw to rotate and driving the cleaning assembly to move; the cleaning brush of the cleaning assembly can effectively clean the heat dissipation opening of the power cabinet, the cleanliness of the power cabinet is kept, meanwhile, the heat dissipation opening can be effectively prevented from being blocked by dust or dirt, and the heat dissipation effect of the power cabinet is guaranteed.

The invention provides an electro-hydraulic hybrid power drive system of a tunneling machine and a control method and belongs to the field of tunneling machinery. The system comprises a main motor, the main motor is connected with a cutting head through a speed reducer and a cutting arm and is connected with a hydraulic pump / motor, an oil supplement motor is connected with an oil supplement pump, and the oil supplement pump is communicated with an energy accumulator, an overflow valve and a pressure sensor; an oil tank passes a first one-way valve and then is connected with an oil inlet of the oil supplement pump and an oil inlet of a two-position two-way electromagnetic reversing valve through pipelines, the two-position two-way electromagnetic reversing valve is communicated with the energy accumulator, the overflow valve and the pressure sensor, and an oil outlet of the overflow valve is communicated with the oil tank; the pressure sensor detects pressure of the energy accumulator and transmits an output signal to a controller; a rotation speed sensor detects the rotation speed of the main motor and transmits a rotation speed signal to the controller and a frequency changer. The tunneling machine can overcome a peak load smoothly during working if the tunneling machine runs across a barrier in the tunneling process, and the reliability of the tunneling machine is improved.

The invention discloses a feeding port of a cement clinker crusher. The feeding port comprises a shell. A feeding port body is formed in the upper side wall of the shell, the inner wall of one side ofthe feeding port body is connected with a baffle through a reset device, and the baffle is rotationally connected with the side wall of the feeding port body. An obliquely-arranged material sliding plate is arranged on the side wall of the feeding port body, and a discharging port is further formed in the lower side wall of the shell. A vibration motor is arranged in the shell, and the output endof the vibration motor is connected with a pulverizer. The shell is internally further provided with a beam arm matched with the pulverizer. The side wall of the side, away from the beam arm, of thepulverizer is rotationally connected with a connecting rod. The feeding port is high in practicability, the baffle arranged at the position of the feeding port body can effectively prevent cement clinker from being splashed out from the position of the feeding port body in the device running process; a dust suction device in the device can suck dust generated in the crusher running process, the situation that the dust overflows out of the device and pollutes the environment is prevented, vibration reduction can also be effectively conducted on the device, and potential safety hazards are reduced.

The invention discloses a respiratory medicine clinical atomizing oxygen generation device which comprises an oxygenator, a medicine box, an atomizing heater, an atomizing hose and an atomizing mask.A mounting cavity is arranged inside the oxygenator, a mounting plate is movably mounted in the mounting cavity, two sides of the mounting plate are slidably mounted on inner walls on two sides of themounting cavity respectively, an oxygen generation compressor is fixedly mounted at the top of the mounting plate, and a damping box is fixedly mounted on the bottom inner wall of the mounting cavity. The device can reduce vibration force generated when the oxygen generation compressor works, so that the oxygen generation compressor has good damping effect; the vibration force is reduced, so thatnoise generated by vibration of the oxygen generation compressor is reduced, discomfort of a patient due to huge noise can be avoided, physical and mental health of people are benefitted, and a comparatively quiet treatment environment can be provided for the patient; the device is suitable for popularization and use.

The invention discloses a shock-absorbing metal pipe drilling device. The device comprises a hollow rack and is characterized in that a groove is formed in the top of the rack, a rack conveyor is horizontally arranged in the groove and comprises rotary shafts arranged on two sides of the rack and a conveying belt arranged on the rotary shafts, a plurality of connectors at equal intervals are correspondingly arranged at two side ends of the conveying belt, a metal pipe fixing base is connected between every two connectors and crosses over the conveying belt, a strip-shaped groove used for accommodating a to-be-machined metal pipe is formed in each metal pipe fixing base, a plurality of round holes are formed in the bottom of each strip-shaped groove at equal intervals, a high-pressure spring is correspondingly and perpendicularly arranged in each hole, a vertical spiral rod is perpendicularly arranged on each of two side surfaces of the rack, a transverse spiral rod is horizontally connected between the two vertical spiral rods, multiple fixing plates are perpendicularly arranged on the transverse spiral rod, and multiple drilling devices are arranged on the fixing plates. The shock-absorbing metal pipe drilling device has the advantages of convenience in use, high efficiency, high precision and the like.

The invention relates to garden greening floor tile construction intelligent equipment. The garden greening floor tile construction intelligent equipment comprises a crawler walking device, wheeled walking devices, an electric rotating platform, a hybrid mechanism, a suction device and a tile seam mud filling device. The wheeled walking devices are symmetrically arranged on the left side and the right side of the crawler walking device correspondingly. The electric rotating platform is located in the center of the upper end of the crawler walking device and fixedly connected with the crawler walking device. The hybrid mechanism is located between the electric rotating platform and the suction device. The lower end of the hybrid mechanism is connected with the electric rotating platform. The upper end of the hybrid mechanism is connected with the suction device. The tile seam mud filling device is located over the suction device. According to the garden greening floor tile construction intelligent equipment, the multiple functions of composite walking, multi-freedom-degree direction adjustment, floor tile suction, tile seam mud filling fixing and the like are integrated, and thus floor tile laying operation can be conducted on municipal sidewalks; and in addition, the automation degree is high, the laying speed is high, and the laying aesthetics is good, so that the problems that existing floor tile laying is large in occupied labor force, low in laying efficiency, large in laying cost and the like are solved.

The invention discloses a GPS positioning device. The GPS positioning device comprises a shell, a GPS chip, an RFID chip, an electronic compass chip and a lithium battery are arranged inside the shell, a solar cell panel is arranged on the outer side of the shell, and the solar panel cell is connected with the lithium battery; the GPS chip structurally comprises a central processing module, GPS input signals enter the central processing module through a noise suppression module and a gain amplification module, GPS output signals are output by a modulation module, and the RFID chip and the electronic chip are connected with the central processing module. The GPS positioning device can overcome the defects in the prior art, due to the fact that the module with the signal filtering enhancing function is designed, the disturbing-resisting capability of the GPS positioning device is improved, the RFID chip identifies the identity of a user, the electronic compass chip provides the moving direction of the user when the GPS signals cannot be received temporarily, a solar cell can charge the lithium battery in real time, and the GPS positioning device is convenient to use and practical.

The invention relates to a novel communication wire cable fire extinguishing unmanned plane. The unmanned plane comprises an unmanned plane main body, supporting columns, a connecting disc, a redundancy parallel mechanism and a fire extinguishing device; the quantity of the supporting columns is 4, the supporting columns are respectively positioned in four vertex angles of the fire extinguishing device, the bottom ends of the supporting columns are connected with the fire extinguishing device, the top ends of the supporting columns are connected with the connecting disc, the redundancy parallel mechanism is positioned between the connecting disc and the unmanned plane main body, the lower end of the redundancy parallel mechanism is connected with the upper end surface of the connecting disc, and the upper end of the redundancy parallel mechanism is connected with the unmanned plane main body. The novel communication wire cable fire extinguishing unmanned plane carries out high-altitude fire fighting and fire extinguishing work on communication wire cables when a fire hazard occurs, and has the advantages of high automatic degree, stable and flexible flight in the fire extinguishing process, large fire extinguishing injection range, high fire extinguishing efficiency, high safety, and solving of the problem of large danger of artificial fire fighting and fire extinguishing of the communication wire cables.

The invention provides a non-linear spring device based on a shear thickening adhesive. The non-linear spring device comprises a support and a fixing clamp. The support is fixedly connected with the fixing clamp. Multiple sets of composite spring pieces are fixed to the support, each set of composite spring piece is composed of an upper piece and a lower piece, the lower ends of the upper pieces and the upper ends of the lower pieces are aligned and then fixedly connected with a middle force-bearing plate, the free ends of the upper pieces and the free ends of the lower pieces are fixedly connected with the support, and a force-bearing rod is fixed to the vertical direction of the middle force-bearing plate. Each composite spring piece comprises an inner layer, a middle layer and an outer layer, wherein the inner layer and the outer layer are metal layers, and the middle layer is the shear thickening adhesive. The non-linear spring device is reasonable in structure, and has the following advantages that the rigidity non-linear characteristic is obvious, and the gradual-increase rigidness characteristic change trend is obvious within a certain condition range; the damping characteristic is obvious, redundant energy can be dissipated in time through the special mechanical performance of the shear thickening adhesive, the excellent damping performance is shown, and the damping effect is achieved.

The invention discloses a stay cable structure for a cable-stayed bridge, comprising stay cables and dampers, every three stay cables form a stay cable group and the three stay cables of each stay cable group are arranged according to a triangular space, the top ends of the stay cables are fixed on a bridge tower, and the lower ends are fixed on a main beam; each damper is installed between two stay cables of each stay cable group, each stay cable is connected with the other two stay cables in the same stay cable group via the damper, making the damper form a spatial arrangement with respective to the stay cables. The stay cable structure in the invention realizes spatial arrangement of three stay cables of each group, after the damper is connected with every two stay cables, when the stay cable group is under the effect of outside excitation, the three stay cables are in a spatial arrangement, and vibration characteristics are different, therefore, vibration of every stay cable in any direction is restricted by the other two stay cables, thereby realizing purpose of vibration damping. Since the installation positions of the dampers are determined by requirement of the vibration damping design, damping effect of the dampers can be developed to the greatest extent.

The invention relates to the technical field of computer accessories, in particular to a waterproof heat dissipation base for a computer. The waterproof heat dissipation base comprises a base body; asupporting plate used for placing a host computer is arranged on the upper side of the base body; a lifting mechanism is arranged between the supporting plate and the base body; a clamping mechanism is arranged on the top of the supporting plate; and a heat dissipation mechanism is arranged on the inner side of the supporting plate. By arranging the lifting mechanism, a motor drives a rotating rodto rotate; the rotating rod drives a threaded rod to rotate through a bevel gear; the threaded rod drives a movable block to move to change the height of the supporting plate, so that water is prevented from soaking the bottom of a computer case, and the service life of equipment can be prolonged; and a spring arranged between a connecting rod and a fixed rod can achieve the damping effect to lower influnence of vibrationto the host computer and improve the device stability; and the heat dissipation mechanism is arranged, heat in the case can be absorbed through flowing of water flow, heat dissipation of the case is achieved, and the heat dissipation efficiency of the device is improved.

The invention relates to the technical field of tea machines, in particular to a tea screening device. According to the tea screening device, the technical problems that the screening effect is not ideal, and stability is poor are solved. The tea screening device comprises a mounting seat. The top of the mounting seat is fixedly connected with a base, a first vertical column and a second verticalcolumn sequentially from right to left; the top of the base is fixedly connected with a motor; an output shaft of the motor is fixedly connected with a rotating shaft through a coupler; and the rotating shaft is fixedly sleeved with a driving wheel. The motor works and operates to enable the rotating shaft to rotate, the rotating shaft rotates to enable a first swing device and a second swing device to rotate, accordingly, a swing frame can be made to swing leftwards and rightwards, impurities and crushed residues in tea fall off from a sieve, the screening effect is better through the swing frame swinging leftwards and rightwards, and the tea screening quality is improved.

The invention discloses an inflatable chair. The inflatable chair comprises a chair body and is characterized by also comprising an air sac (1) and a power accumulator (2), wherein the power accumulator (2) is a sealed box body; a piston (8) and a compression spring (4) are arranged in the power accumulator; the left side of the piston (8) is communicated with the air sac (1) through an air pipeline (3); the compression spring (4) is arranged on the right side of the piston (8); and the left side of the piston (8) is also communicated with an air inflation nozzle (5). The inflatable chair has high shock absorption performance, low cost and a simple structure and is good in comfort when people sit on the chair and is convenient to maintain.