24results about How to "Achieve damping" patented technology

The utility model discloses a table plate hinge device which comprises hinge bases, a connecting plate and hinge shafts, the two hinge bases are rotationally connected with the connecting plate through the corresponding hinge shafts, friction structures are arranged between the hinge shafts and the connecting plate, and the hinge bases are provided with abutting parts. When the two hinge bases are in an unfolded state, the friction structure is used for keeping the two hinge bases relatively static; when the two hinge bases are in a flattened state, the abutting parts of the two hinge bases abut against each other. Rotation after the table board is assembled can be achieved through the hinge bases and the connecting plate which are connected in a rotating fit mode, and flattening and supporting of the two hinge bases can be guaranteed through the abutting parts. The arranged friction structure can guarantee that enough friction force exists between the two hinge bases and the connecting plate after assembly during overturning, so that the damping effect is achieved, and the overturning stability is guaranteed. And through the arrangement of the connecting plate, the assembled table plate can be reliably folded, and the hinge device cannot be seen from the front side of the table plate in an unfolded state.

The utility model provides an H-gear shifting gear seat, and relates to the technical field of game simulation equipment. The device comprises a gear seat body and seven sets of proximity switches installed in the gear seat body, and further comprises gear shifting grooves, and the seven sets of gear shifting grooves are formed in the top face of the gear seat body and correspond to the seven sets of proximity switches in sequence by driving a magnetic gear shifting rod; and the plurality of gear bosses are respectively arranged at the edge parts of all the gear shifting grooves. The magnetic gear shifting rods are driven to move in different gear shifting grooves, so that the corresponding proximity switches are triggered, and forward movement and backward movement are achieved. The gear boss is mainly used for achieving the damping effect when the magnetic gear shifting rod enters different gear shifting grooves, perfect balance between the damping feeling and the suction feeling is achieved in the gear shifting process, and better operation hand feeling is brought. On the whole, the structure is simple, the failure rate is low, and the gear shifting hand feeling and the game experience feeling are effectively improved.

The present invention provides a centrifugal self-locking damping mechanism and a photovoltaic device, which relate to the photovoltaic field and include a locking body and a cylindrical rotating body. A cylindrical slot matching the rotating body is provided in the middle of the locking body, one end of the rotating body is inserted into the cylindrical slot and is rotatably connected to the cylindrical slot, a locking pin portion that can slide outward is buried in the rotating body, at least one group of card slots matching the locking pin portion is provided in the upper part of the cylindrical slot, the front end portion of the locking pin portion slides out and is inserted into the card slot to brake the rotating body, and when there is a sudden external force applied to the photovoltaic panel, the photovoltaic panel pulls the rotating body to rotate through the steel wire rope, and the locking pin portion buried in the rotating body slides outward under the action of centrifugal force until the front end portion of the locking pin portion slides out and is inserted into the card slot, thereby braking the rotating body to achieve a damping effect, which not only has a wide range of applications but also has low subsequent maintenance costs.

The present invention discloses an automatic adjustment device for the lifting center of gravity for a micro crane, and relates to the technical field of high-altitude engineering operations. This solution adopts a combination of a passive damper and an active regulator, which can automatically match the optimal damping force according to the weight of the hoisted object, and realize dynamic adjustment of the damping force. Through the design of the bottom retaining frame and energy absorber of the load-bearing steel cable, the device can effectively reduce the center of gravity offset and swaying caused by the inertial force during lifting, and improve the safety and efficiency of the lifting operation. In addition, the device also specially considers the impact of strong winds or rapid movement on the lifting stability, and effectively absorbs and slows down the drastic changes in the center of gravity through the liquid viscosity damping mechanism of the active regulator. The implementation of this solution not only improves the operating performance of the micro crane, but also provides an innovative solution for the stability control of the lifting equipment.

The utility model discloses a precast concrete anti-seismic frame structure, and relates to the technical field of constructional engineering. Comprising a frame body and a supporting column, a plurality of top connecting assemblies are arranged at the bottom end of the frame body, a plurality of bottom connecting assemblies are arranged at the top end of the supporting column, and the bottom connecting assemblies and the top connecting assemblies are equal in number and are in one-to-one correspondence; connection between the frame body and the supporting columns is achieved through mutual cooperation of the bottom connecting assemblies and the top connecting assemblies. According to the anti-seismic frame structure, the top connecting assembly and the bottom connecting assembly are arranged, when large vibration exists outside, the vibration possibly enables concrete at the connecting position to crack or peel off, when the frame body and the inserting shaft move downwards, vertical vibration can be buffered through spring deformation, and therefore the anti-seismic performance of the frame structure is achieved.

The utility model discloses a kind of salve tubes of improving rotary hand feeling, comprising: base;Spiral seat, it is positioned on base, wherein middle part is axially spaced several first guide rings, and damping ring is set between adjacent first guide ring, and its top is provided with internal thread;Middle beam tube, it is coaxially rotationally arranged on base, and the inner wall bottom of its is circumferentially provided with second guide ring, and second guide ring is abutted on the surface of spiral seat, damping ring, and first guide ring is abutted on the annular recess of middle beam tube inner wall, and the inner wall middle part of middle beam tube is provided with guide plate, and the central part of guide plate is provided with guide port;Lifting bead, its top is provided with the positioning seat for salve placement, and its bottom can be vertically moved through guide port and is provided with stud screwing with internal thread;Cover, it is sleeved and positioned on base.The utility model can solve the problem of poor hand feeling and unstable structure positioning of existing salve tube.

The utility model discloses a train derailment rotary anti-collision device which comprises an anti-collision barrel body, a stand column is fixedly connected to the inner wall of the anti-collision barrel body, a cylinder body is fixedly connected to the side, close to the anti-collision barrel body, of the stand column, an oil storage cylinder barrel is arranged in the cylinder body, a working cylinder barrel is arranged in the cylinder body, and a hydraulic cylinder barrel is arranged in the working cylinder barrel. A base is arranged at the bottom of the cylinder body, a piston is slidably connected into the working cylinder barrel, and a rod body is fixedly connected to the side, away from the base, of the piston. When a train derails, the train collides with the anti-collision barrel body due to kinetic energy and extrudes the anti-collision barrel body to deform the anti-collision barrel body, the connecting spring is extruded and contracted, so that the kinetic energy of the train is absorbed, meanwhile, the rod body drives the piston to slide in the working cylinder barrel, and hydraulic oil enters the oil storage cylinder barrel under the action of pressure, so that the anti-collision barrel body derails. And in the moving process of the hydraulic oil, the hydraulic oil is throttled through the piston and the valve on the base, so that damping is achieved, and the anti-collision effect is improved.

The embodiment of the utility model discloses a damper, a base station and a cleaning system.The damper comprises a first connecting piece, a second connecting piece and a reset piece, a first guide face and a second guide face are formed on the first connecting piece and the second connecting piece correspondingly, in the using process, if the damper is applied to the base station, the first connecting piece is connected to a cabin door, and the second connecting piece is connected to the cabin door; the second connecting piece is connected to the base station body, when the cabin door rotates relative to the base station body, the first connecting piece rotates relative to the second connecting piece, and in the process, the first guide face and the second guide face guide movement between the first connecting piece and the second connecting piece, so that the second connecting piece compresses the reset piece. Under the condition, the reset piece can exert stress in the reverse direction, then resistance is provided for opening of the cabin door, and the damping effect can be achieved. The damper is simple in structure and convenient to assemble.

A lithium battery pruning shears shearing strength test platform disclosed by the present invention comprises an outer frame assembly, a tension tester and a lithium battery pruning shears assembly, the outer frame assembly comprises a bottom frame and a main frame, the corners of the bottom frame and the main frame are mutually fixed through a sliding rod, the surface of the sliding rod is slidably connected with a mounting seat, the tension tester is fixed on one side of the mounting seat, and the tension tester is fixed on the other side of the mounting seat. The opposite sides, close to the main frame and the mounting base, of the surfaces of the sliding rods are sleeved with damping springs, and the mounting base is elastically connected with the main frame through the damping springs. The bottom of one side of the main frame is fixedly connected with a base, a fixing assembly is arranged on the top of the base in a longitudinal sliding mode and comprises a placement base and a reset spring, the bottom of the placement base is elastically connected with the base through the reset spring, and the lithium battery pruning shear assembly comprises a lithium battery handle, a movable cutter and a fixed cutter. According to the invention, a better testing environment can be effectively provided for the tester and the cutter, the phenomenon that the steel wire rope is broken is prevented, and the testing precision can be effectively improved.

The present invention discloses a method for harmonic current compensation and feeder resonance damping of a microgrid load, the method comprising: performing power control through a DG unit to obtain an instantaneous base current reference value of a connection point POC; adopting a selective harmonic detection strategy to suppress harmonic current components to obtain a harmonic current reference value for local load current compensation; calculating a reference current reference value for feeder reference active damping according to the harmonic components of the POC voltage and the active damping resistor; realizing closed-loop current tracking, and adding the instantaneous base current reference value, the harmonic current reference value for local load current compensation, and the reference current reference value for active damping to obtain a current reference value of the DG unit. The method realizes compensation for local load harmonic current and damping of feeder resonance propagation, and reduces grid current and node voltage distortion.

The utility model relates to the technical field of cushion protective covers, in particular to an electric vehicle cushion protective cover which comprises a cover body, a rotating assembly and a fastening assembly, the rotating assembly comprises two parts capable of rotating relatively, and the two parts capable of rotating relatively are arranged on the fastening assembly in a limited mode and fixed to the two ends of the cover body respectively. The fastening assembly comprises a fixing piece and a fixing column, an annular groove is formed in the fixing piece, and the first end of the fixing column extends outwards in the radial direction of the fixing column and is limited in the annular groove of the fixing piece. The fixing piece and the nut are arranged at the two ends of the fixing column correspondingly, limiting of the first rotating piece and the second rotating piece is achieved, and when the first rotating piece and the second rotating piece rotate to the supporting framework, the limiting sleeve and the supporting framework are pushed to continue rotating, so that damping in the rotating process is achieved, and the protective cover is prevented from being lifted to lose protection.

The present invention discloses a power supply device for auxiliary equipment of new energy vehicles, which relates to the field related to new energy vehicles, including a box installed at the installation position of the auxiliary equipment of the new energy vehicle, a battery assembly is installed at the top internal position of the box, and the power connection position of the battery assembly is connected to the power supply of the auxiliary equipment of the new energy vehicle through the power transmission assembly; and also includes: a placement plate for placing the battery assembly is arranged inside the box, and a limiting mechanism is arranged at the bottom of the placement plate, and the linkage work of the limiting mechanism drives the interference mechanism to act on the damping spring to prevent the elastic force of the damping spring from causing the battery assembly to move. The power supply device for auxiliary equipment of new energy vehicles is provided with an interference mechanism. Through the auxiliary setting of the interference mechanism, the damping effect of the damping spring can be changed, resulting in the box and the battery assembly being effectively prevented from being worn at the bottom of the battery assembly during the stabilization process.

The embodiment of the present application provides a fitness puller, including: a shell, a tension rope, a rope wheel and a damping return mechanism; the tension rope is passed through the shell, the first end of the tension rope is located outside the shell, the second end of the tension rope is located inside the shell, and the second end of the tension rope is wound around the rope wheel; the rope wheel is rotatably connected to the inside of the shell, and is connected to the damping return mechanism through a linkage member; the damping return mechanism is arranged inside the shell, including a webbing wheel, a webbing and an elastic member, the webbing wheel is linked to the rope wheel through a linkage member, the first end of the webbing is wound around the webbing wheel, the second end of the webbing is connected to the elastic member, and the elastic member is arranged inside the shell; when the tension rope is pulled out toward the outside of the shell, the rope wheel releases the tension rope, the linkage webbing wheel retracts the webbing, and the elastic member undergoes elastic deformation, so that the webbing has a movement tendency to leave the webbing wheel.

The utility model relates to the related technical field of data transmission docking stations, in particular to a data transmission docking station with an anti-falling function, which is characterized in that a transverse buffer pad and a mounting plate are arranged on the surface of an impact-resistant shell, a limiting groove is formed in the impact-resistant shell, and a side end buffer pad is arranged on the surface of the mounting plate; positioning columns and springs are arranged on the surface of the data transmission docking station, sliding grooves are formed in the surfaces of the positioning columns, sliding holes are formed in the sliding columns, and limiting plates are arranged on the surfaces of the sliding columns; the device has the beneficial effects that the effect of buffering the impact-resistant shell for the first time is achieved through a transverse buffering pad, impact force transmitted into the impact-resistant shell is reduced, the effect of damping a spring is achieved through a sliding column, therefore, the impact force is converted into heat energy to be dissipated, meanwhile, the sliding column achieves the effect of supporting a limiting plate, and the service life of the limiting plate is prolonged. The effect of buffering the impact force is achieved through the springs, and therefore the situation that the impact force is transmitted to the data transmission docking station to cause damage is avoided.

The shock absorber comprises a piston assembly, and a control oil cavity, an overflow block, a valve element and an oil discharging channel are arranged in the piston assembly; valves are arranged between the control oil cavity and the rod cavity and between the control oil cavity and the rodless cavity; the valve element is sequentially provided with a large-diameter section and a small-diameter section in the axial direction of the valve element. The overflow block is of an annular structure with a hollow part, the valve element is arranged in the hollow part of the overflow block in the mode of being capable of moving in the axial direction, a first oil channel is formed between the small-diameter section and the side wall of the hollow part, and a first overflow hole communicating with the first oil channel and the control oil cavity is formed in the side wall of the overflow block. A second overflow hole communicated with the oil discharge channel is further formed in the side wall of the overflow block; the valve element can be switched between a first position and a second position in a sliding mode in the axial direction. According to the shock absorber provided by the invention, the problem of pollution caused by easy leakage of oil can be avoided.

The present application relates to a household air conditioner installation structure and an installation method thereof, which relates to the field of air conditioner installation, and comprises a column and a cross bracket, wherein the column is vertically arranged, and the two ends of the column are connected to the wall through expansion bolts, and the cross bracket is horizontally arranged on the column, and a mounting bracket for positioning and installing an external unit is arranged between the column and the cross bracket, and the mounting bracket is arranged on the column through a connecting piece, and a placement space for placing the external unit is formed between the column, the cross bracket and the mounting bracket, and a first binding strap for suspending and positioning the external unit is arranged in the placement space, and a circumferential shock-absorbing component for circumferentially shock-absorbing the external unit is arranged on the cross bracket. The present application has the effect of reducing the noise caused by the vibration of the external unit.

The present invention provides a valve actuator. One side of the valve actuator of the present specification includes: a housing; a motor configured in the housing; a drive gear combined to a motor shaft of the motor; a transmission gear externally tangent to the drive gear, which rotates according to a predetermined gear ratio when the drive gear rotates; an output gear combined to an output shaft and externally tangent to the transmission gear; and a stopper configured in the housing to limit the rotational radius of the output gear. The transmission gear includes: an outer side portion; an inner side portion configured inside the outer side portion; a first magnet configured in the outer side portion; and a second magnet configured in the inner side portion and opposite the first magnet. Thus, gear damage caused by excessive torque can be prevented, and gear damage caused when the output gear contacts the stopper can be prevented.

The utility model belongs to the technical field of child scooters and discloses a novel child scooter which comprises a scooter plate, a seat is fixedly mounted in the middle of the top of the scooter plate, a fixing rod is fixedly mounted on the left side of the top of the scooter plate, a rotating shaft is rotatably mounted on the left side of the fixing rod, and a rotating disc is fixedly mounted on the top of the rotating shaft. When the rolling wheel crosses an obstacle or an uneven base plane, the rolling wheel instantly loses upward extrusion force, at the moment, nitrogen at the bottom of the second piston expands, a damping spring on the periphery of the push rod rebounds and resets, all the components can return to the original positions, and the rolling wheel is driven to rotate. At the moment, hydraulic oil in the nitrogen cylinder reversely penetrates through the branch and flows back into the hydraulic cylinder, in the process, the inverted-trapezoid sealing plug is tightly connected to the lower portion of the flow cavity in an abutting mode under extrusion force of backflow hydraulic oil to seal the flow cavity, the hydraulic oil can flow back only through the two flow pipes, and therefore the backflow speed is reduced, and the damping effect is achieved; and the roller is slowly released to return to the original position, so that the springback vibration is reduced.

The utility model discloses a cabin door damping connecting rod device which comprises a connecting rod mechanism, the two ends of the connecting rod mechanism are in shaft connection with a cabin and a cabin door respectively, the connecting rod mechanism comprises a driving rod and a driven rod, one end of the driving rod is in shaft connection with the cabin, the other end of the driving rod is in shaft connection with the driven rod, and the other end of the driven rod is in shaft connection with the cabin door. And a damper is arranged on the driven rod close to the cabin door shaft connection point. A damping effect is provided for the whole opening process of the cabin door through reasonable arrangement of the damper.

The utility model discloses a damping bowl set which comprises an inner ball plug and a steel ball bowl arranged outside the inner ball plug in a sleeved mode, a gap is formed between the steel ball bowl and the inner ball plug, and a damping piece is arranged at the position, close to the bottom, of the gap between the steel ball bowl and the inner ball plug. A steel ball is arranged in a gap between the steel ball bowl and the inner ball plug and close to the top; the damping device has the advantages that through the steel ball bowl, the inner ball plug, the damping piece and the steel ball, when the inner ball plug rotates, due to the fact that the inner ball plug is attached to the damping piece, the inner ball plug slides on the damping piece, the vibration reduction and damping effects are achieved, in other words, after the inner ball plug is pushed, the inner ball plug can move upwards, and therefore the damping effect is achieved. The steel ball bowl and the inner ball plug generate mutual pushing force, so that the inner ball plug is tightly attached to the damping piece, meanwhile, the inner ball plug is attached to the steel ball to rotate, the clamping condition is avoided, and the vibration reduction and damping effects can be achieved.

The utility model discloses an electric device and a damper thereof, the electric device comprises a shell and a core body arranged in the shell, the core body comprises a first inner core and a second inner core, the first inner core is provided with a shaft hole used for being fixedly connected with a motor shaft or a spline shaft, and the first inner core and the second inner core are arranged in a relative rotation mode to form a damping cavity. The damping cavity is filled with damping oil. The connecting cover can be detachably connected with the motor shell or the machine head shell, when the connecting cover is connected with the motor shell, the first inner core is fixedly connected with the motor shaft, the motor shaft drives the first inner core to rotate synchronously, when the connecting cover is connected with the machine head shell, the first inner core is fixedly connected with a spline shaft of the machine head, and when the spline shaft rotates along with the input shaft, the first inner core rotates synchronously. The spline shaft drives the first inner core to rotate synchronously, and the damping oil and the second inner core rub against the first inner core to generate resistance, so that constant load can be provided, stability in the testing process is ensured, and the requirement of an electromagnetic compatibility test of a motor or a machine head is met.

The invention discloses a hydraulic cylinder for a hydraulic active suspension, which is characterized by comprising a liquid storage barrel, a hydraulic cylinder and a hydraulic cylinder, the working cylinder is arranged in the liquid storage barrel and fixedly connected with the liquid storage barrel, a liquid storage cavity is formed by the working cylinder and the liquid storage barrel, a working cylinder one-way valve is installed at the end of the working cylinder, a third oil hole is formed in the working cylinder one-way valve, the working cylinder one-way valve is matched with the liquid storage barrel, and a barrel cylinder oil hole is formed in the working cylinder; the piston rod is arranged in the working cylinder, the working cylinder is fixedly connected with a fixed sealing piston, the piston rod penetrates through the fixed sealing piston, the piston rod is fixedly connected with a sealing piston, and the sealing piston is matched with the working cylinder. The invention relates to the technical field of hydraulic cylinders, in particular to a hydraulic cylinder for a hydraulic active suspension. The technical problem to be solved by the invention is to provide the hydraulic cylinder for the hydraulic active suspension, which is convenient for the hydraulic active suspension to use.