253 results about "Volute spring" patented technology

The present invention discloses a cable reel, which comprises a casing, a movable latch member pivotally coupled into the casing, a protrusion disposed at one end of the latch member, a turntable disposed under the latch member and pivotally coupled into the casing, a volute spring disposed on a turntable, a cable disposed in the in the turntable, and an adapter can be connected to one end or both ends of the cable. Further, the turntable has a groove, and an inclined guide groove and an arc indented groove are disposed proximate to the groove such that the protrusion on the latch member in conjunction with the inclined guide groove and the arc indented groove can fix the cable at the currently located position and will not retract the cable into the cable reel when the cable is pulled. On the other hand, the cable is pulled gently again if it is necessary to rewind the cable. The protrusion of the latch member will then be released and the cable around the turntable will be retracted automatically to the turntable. The present invention not only is simple to use, but also is easy to carry.

The invention relates to a driving device for a reconfigurable cable-driven parallel manipulator. The device comprises a motor, a drive module box body, a winding device, a pressure axis, a tensioning device, a spring spool, a plane volute spring, a spring catch, a split pin, a driving device, a driving slide block, an inner spherical guide hole and an outer spherical guide hole, wherein the drive module box body is connected with the motor; the winding device comprises a cable reel which is connected with the drive module box body; the pressure axis is fixed in a groove on two sides of the drive module box body, and is positioned above the cable reel; the tensioning device comprises a spring scroll; the spring spool is connected with the spring scroll; the spring catch is coaxially connected with the spring scroll; the driving device comprises a linear guide rail; the driving slide block is fixed on a slide block of the linear guide rail; the inner spherical guide hole is fixed on the slide block of the guide rail; and the outer spherical guide hole is arranged on the outer wall of the drive module box body. The reconfigurable cable-driven parallel manipulator comprises a manipulator body frame, a drive module connected with the manipulator body frame and a manipulator movable platform.

The invention provides an underwater releaser, consisting of an electromotion part, a trigger mechanism, an energy storage mechanism, a speed reduction mechanism, a bidirectional overflow mechanism, a dynamic sealing transmission mechanism and a releasing arm, wherein the electromotion part is positioned inside a pressure-resistant cabin; a lower bottom plate of the pressure-resistant cabin is connected with an isolating cabin so as to jointly form a seawater isolating cabin segment in a circle; the seawater isolating cabin segment is provided with the bidirectional overflow mechanism; and the trigger mechanism, the energy storage mechanism and the speed reduction mechanism are all arranged inside the seawater isolating cabin segment. The underwater releaser adopts the design of combining two blocks of U-shaped magnetic steel, ensuring that the maximum trigger power is close to the scalar sum of the gravitational force and repulsive force between the U-shaped magnetic steel; by using a plane volute spring to store energy and using a gear set to reduce speed, the underwater releaser can provide great releasing power; a seawater isolating cabin is built through the bidirectional overflow design, which avoids seawater impact and the adverse effect of marine organisms; through a rotary unhooking mechanism, the releaser can have greater bearing capacity. The underwater releaser is not only better in watertight reliability, but also can work underwater for a long period of time without replacing components.

A cable reel mechanism includes a main body, a cable reel, a cable, a volute spring and a switching element. The main body has a receiving room defined therein and a limiting groove. The cable reel is turnably disposed in the receiving room of the main body and has a track groove in which a ball bearing is disposed. One portion of the ball bearing engages with the limiting groove of the main body. The cable is reeled on the cable reel. The switching element is disposed on the main body and has a pressing portion which detachably presses the ball bearing. The cable reel mechanism can be switched to different operation modes via the switching element, so that users can pull then retract the cable rapidly and directly to adjust the length of the cable, therefore the operation is easier and more convenient.

The invention discloses a passive robot joint with adjustable rigidity elasticity, comprising a spring reel and a joint rigidity elasticity adjustment device arranged inside the spring reel, wherein the spring reel is connected with thigh support seats; an extended end of the joint rigidity elasticity adjustment device is connected with crus support seats by crus support plates; the joint rigidity elasticity adjustment device comprises a non-contact plane volute spring of which the inner end is connected with a spring scroll and the outer end is connected with the spring reel; the middle of the spring scroll is hollow and is internally provided with a rigidity adjustment motor; one end of the spring scroll is connected with the rigidity adjustment motor; and the middle of the non-contact plane volute spring pitch is supported by a bracing piece which is connected with a rigidity adjustment reducer by a transmission gear. The bracing piece and the transmission gear perform radial motion, thus improving motion energy efficiency of the robot, realizing dynamically high-speed motion, and having good performance, compact structure and reliable operation.

The invention relates to a highway deceleration strip generating set comprising a road surface part and a host part, wherein the road surface part comprises a deceleration strip and a cylinder group in the deceleration strip. A piston of the cylinder group is connected with a pressed body, the pressed body is higher than the deceleration strip, and the cylinder group is also connected with an airinlet pipeline and an air outlet pipeline; the air outlet pipeline is connected to a single-action cylinder of the host part; the single-action cylinder drives a rack, and the rack is joggled with a unidirectional force transferring gear sleeved on a first shaft; the first shaft is also provided with an unidirectional clutch and a pair of joggled reduction gears; reduction gear shafts are connected with a pair of bevel gears joggled in 90 degrees, and bevel gear shafts are connected with a cam; the first shaft is connected with a second shaft through a spline and a spring, and the second shaftis sheathed with a push disc touching the cam; the second shaft is connected with a third shaft through a jack clutch mechanism; the third shaft is sheathed with a plane volute spring and a unidirectional force transferring acceleration gear; the unidirectional acceleration gear is connected to a generator through a multiple-stage acceleration gear; and the generator is connected to a storage battery. The generating set occupies small area of a road surface and can continuously store energy.

A wire-winding device for two kinds of cables is described. The device has a base, two winding plates, two communication cables and a volute spring. The two winding plates are arranged inside the base, the two communication cables are rolled around the two winding plates, respectively, and the volute spring is connected between the two winding plates. The wire-winding device can be used with various plugs and earphones for broad application.

The invention discloses a control surface longitudinal folding mechanism. According to the control surface longitudinal folding mechanism, a steering engine (4) and a pin puller (5) are mounted in a tail bin (6); an in-place lock (7) is mounted in an inner hole of a fixed control surface (2); a bearing (3) is mounted in a rotary shaft hole of a folding control surface (1) in an interference fit manner; the two sides of a tiller of the folding control surface (1) are each connected with one end of a volute spring (9); the folding control surface (1) provided with the bearing (3) and the volute springs (9) is placed in an inner groove of the fixed control surface (2); the other ends of the volute springs (9) are connected to the fixed control surface (2) in a hooked manner; a rotary shaft (11) sequentially penetrates in the inner hole of the fixed control surface (2) and an inner hole of the bearing (3) to connect the fixed control surface (2) with the bearing (3); and the fixed control surface (2) and the steering engine (4) are connected, then the folding control surface (1) is rotated to a folding position, a lock pin of the pin puller (5) is embedded in a square groove (8) of the folding control surface (1), and the folding control surface (1) is locked.

A cord reel box with recharging unit has a housing, a rotating plate, a volute spring, a communication cord, a recharging unit, and a pressing device. The gear mechanism is assembled between the rotating plate and the regenerator. The pressing device is pivotally mounted on one side of the housing. The gear mechanism is assembled between the pressing device and the regenerator. An AC plug is mounted on the housing and electrically connecting with the PCB. The PCB has a transformer mounted thereon, and the communication cord electrically connects with the PCB. The cord reel box can recharge a cell phone via the recharging unit or plug with the AC plug.

The invention discloses a composite spring structure realizing equal offset frequency of variable stiffness. The composite spring structure comprises a main spring, an auxiliary spring and buffer blocks, wherein two ends of the main spring are bent upwards, the middle part of the main spring is connected with the auxiliary spring, and the buffer blocks are arranged at two ends of the auxiliary spring. Therefore, the problems that stiffness abrupt change of a composite plate spring with two-stage stiffness is produced and noise is generated when the auxiliary spring participates in loading are solved; the ideal non-linear elastic characteristic is achieved, little flexible change and little offset frequency change of the plate spring of a passenger car under any loading are guaranteed, and the equal offset frequency of variable stiffness in a use section is basically realized.

The invention belongs to the technical field of aerospace spaceborne antennas and particularly relates to an unfolding release device of a rod antenna. According to the technical scheme, the unfolding release device comprises the rod antenna (3), a compression release mechanism (2) and an unfolding locking mechanism (1); the compression release mechanism (2) comprises an installation base (201), a compression base assembly (202), a swing frame (203), an installation frame (204), a limiting supporting plate (205), a locking reed (206), a compression screw (207) and a pyrotechnic cutter (209); the unfolding locking mechanism (1) comprises an installation frame (101), a fixed hinge support (102), a volute spring (103), a limiting block (104), a locking leaf spring (105) and a rotating hinged head (106). According to the unfolding release device of the rod antenna, the rod antenna (3) can be unfolded to a fixed angle and can be effectively locked before and after the release.

The invention relates to a power generation device for a highway deceleration strip. The power generation device comprises the deceleration strip, a first straight rod connected with the deceleration strip, a second straight rod hinged to the first straight rod, a first shaft, a second shaft, a third shaft, a hydraulic cylinder, an energy accumulator, a pressure sensor, an electromagnetic flow control valve and a hydraulic oil tank; the second shaft is sequentially provided with a first ratchet wheel, a first gear, a second detent and a second ratchet wheel, and the first shaft is provided with a first detent which is internally meshed with the first ratchet wheel and a second gear which is externally meshed with the first gear; a clutch is arranged between the second shaft and the third shaft, and the third shaft is provided with a planar volute spring, a one-way gear and a rotation speed sensor; the one-way gear is meshed with a third gear which is connected with an electric generator; the pressure sensor and the rotation speed sensor are electrically connected with the clutch, and the rotation speed sensor is electrically connected with the electromagnetic flow control valve. According to the power generation device for the highway deceleration strip, energy of the deceleration strip is bidirectionally recovered by applying the one-way driving characteristic of the ratchet wheels, a hydraulic system is utilized to control the energy releasing time of the volute spring, and the purpose of saving the energy is achieved.

A blind which is provided with adjustable feedback energy to roll up a curtain autonomously is disclosed. The blind uses primarily a worm-gear pressure regulation device which can be adjusted manually, is assembled at a side of the blind and is exposed outward. The pressure regulation device acts indirectly onto a volute spring of a rolling system to determine a degree of winding of the curtain by the feedback energy. In addition, using introduction of feedback interference, a working speed at the maximum feedback energy can be damped effectively and a speed of rolling back the curtain can be moderated.

The invention relates to a multi-buffering energy storage device and application thereof. The multi-buffering energy storage device comprises an energy storage cylinder, an oil tank, a first volute spring mechanism, a second volute spring mechanism, a hydraulic motor, a differential planetary gear train and a generator; the energy storage cylinder comprises a closed cylinder body, an elastic moving device is arranged at one end of the closed cylinder body, an energy transmitting device is arranged at the other end of the closed cylinder body, and hydraulic oil fills the space between the elastic moving device and the energy transmitting device; and the closed cylinder body, the hydraulic motor and the oil tank are connected through an oil way to form a hydraulic loop, the energy transmitting device is connected with the first volute spring mechanism, the hydraulic motor is connected with the second volute spring mechanism, and the first volute spring mechanism and the second volute spring mechanism are connected with the generator through the differential planetary gear train. According to the multi-buffering energy storage device, by means of the energy storage cylinder, redundant energy can be converted and stored, energy waste is reduced, and resources are saved. The energy storage device is ingenious in structural design, convenient to install and use, and high in energy conversion rate and storage rate.

The invention relates to an electric push rod drive controlled flexible gripper with plate spring frameworks. The gripper comprises a palm and three flexible fingers, wherein one flexible finger 1 is installed in the left symcenter of a rectangular palm 2 and the other two flexible fingers 1 are respectively installed on the two sides of the right symcenter of the rectangular palm 2; the three flexible fingers 1 are respectively installed on three corresponding edges of a hexagonal palm 3; each flexible finger has the same structure and mainly comprises an electric push rod and a plate spring; the plate spring as a framework is divided into a deformation section and a gripping section; the lengths of the two sections can be adjusted relatively. The multi-finger gripper is applied to gripping fragile objects or special-shaped objects with shapes and sizes varying and belongs to the technical fields of applications of robots and mechatronics. The gripper is connected with a robot body and is especially suitable for the production and logistics places for gripping, sorting and packaging food, agricultural products and light industrial products.

The present invention relates to a medical delivery device comprising a housing (10); a medicament container (16) arranged to be placed in said housing; a stopper (18) movable within said container; a medicament dispensing means attachable to said housing and to said container through which medicament can be expelled; characterized in that the device further comprises a power unit (22) comprising a cover (24), a volute spring (26) arranged within said cover, and a pressure member (28) having a pressure pad (30) in contact with the stopper, a guide rod (34) extending into the volute spring and an annular ledge (32) in contact with the edges of the volute spring; activation means (36) mechanically connected to the cover and to the housing; and a spring locking means mechanically connected to said activation means, wherein said spring locking means (39) comprises a deformable ring-shaped member having (40) an inner diameter somewhat larger than the annular ledge, such that said ring-shaped member presents an oval shape when it is in contact with the annular ledge for locking the volute spring in a tensioned state.

The invention provides an actuator, in which an output shaft applied with elasticity in protruding direction is supported axially in reciprocating action mode on a casing with a motor and a power conversion unit between the motor and the output shaft stored therein. The actuator has adequate sealing, easy assembly of lead screw shaft, casing miniaturization and reduction of component number. The lead screw shaft is a part of the power conversion unit, and the side wall of a first half-casing is provided with a through hole penetrated by the output shaft which is provided with a screwing part screwed with the lead screw shaft at the axial inner end side and a long hole extending axially. A stopper limiting the axial moving end of the output shaft penetrates into the long hole between the inner surface of the side wall and the screwing part, fitted with and supported on the first half-casing, and a volute spring is arranged between the other end of the lead screw shaft and the first half-casing.

The invention relates to a constant tension compensating mechanism which comprises a shell, a main shaft that can rotate correspondingly to the shell, a plane volute spring arranged between the shell and the main shaft, and an involute compensating scored pulley; the constant tension compensating mechanism is characterized in that the compensating scored pulley is fixedly installed at the end part of the shell and is simultaneously taken as a close end cover of the shell, and a wire rope is wound on the involute compensating scored pulley. The scored pulley is installed on the shell and is not fixed with the main shaft, so that the main shaft and the scored pulley are not needed to be provided with key slots, thus guaranteeing the strength of the structures of the main shaft and the scored pulley; at the same time, as a bolt is adopted to connected the scored pulley and the shell, the installation is convenient, and the reliability is high. As scored pulley is simultaneously taken as the end cover, the special end cover can be left out, thus saving the materials and the processing cost.

The invention relates to a compensation device of a spring with constant tension, which essentially comprises a grooved pulley, a compensation rope, a left end plate, a main shaft, an oil seal, a bearing, a right end plate, a contact plane volute spring, an external cover, a fixed angle iron, an installation bottom plate, a hinge pin and a broken wire stopping device; wherein, the grooved pulley is fixed on the main shaft; the compensation rope is coiled and has an end fixed on the grooved pulley and the other end connected with an external contact net; the main shaft is supported on the left end plate and the right end plates by the oil seal and the bearing; the left end plate and the right end plate, the external cover, the fixed angle iron and the installation bottom plate form an enclosed box base; the hinge pin is connected to one side on the installation bottom plate far from the box base which is internally provided with the contact plane volute spring with an inner end bent hook connected with the main shaft and an outer end bent hook connected with the fixed angle iron on the box base. The compensation device of the spring with constant tension provided by the invention is compact in structure, small in size and light in weight. The invention can cause an electrified railway network to keep certain tension and reduce the loss catenary rate of the pantagraphs.

A cord controlling device is used in conjunction with a game racket and is composed essentially of a housing formed of a base and an upper cover. The base is provided with a fastening portion by which the device is fastened with the head frame network of the game racket. The base is provided at the center of the upper side thereof with a shaft on which a rotary seat is rotatably mounted. The rotary seat is provided with a receiving chamber in which a volute spring is located such that the volute spring is fastened at one end thereof with the rotary, seat, and at other end thereof with the shaft of the base. A cord reel is mounted on the rotary seat for winding up or letting out a cord which is wound on the cord reel such that the cord is fastened at one end thereof with the cord reel, and that other end of the cord is let out via a cord outlet of the housing for fastening with a ball.

A brush board assembly for a DC or AC motor employs a spool-shaped frame unitarily formed of a mounting plate, a series of support members that extend axially and define the brush holders, and an outer support plate that is generally parallel to the mounting plate. This frame may be molded of a high strength, high temperature resin for heavy duty motor use. Brush hold down springs are mounted onto push-in carriers that fit into receptacles on the support members. Preferably, scroll or volute springs are employed, and a stop arm on the carrier allows the free end of the spring to be held out of the way for installation or brush change out.

The present invention relates to a medical delivery device comprising a housing (10); a medicament container (16) arranged to be placed in said housing; a stopper (18) movable within said container; a medicament dispensing means attachable to said housing and to said container through which medicament can be expelled; characterized in that the device further comprises a power unit (22) comprising a cover (24), a volute spring (26) arranged within said cover, and a pressure member (28) having a pressure pad (30) in contact with the stopper, a guide rod (34) extending into the volute spring and an annular ledge (32) in contact with the edges of the volute spring; activation means (36) mechanically connected to the cover and to the housing; and a spring locking means mechanically connected to said activation means, wherein said spring locking means (39) comprises a deformable ring-shaped member having (40) an inner diameter somewhat larger than the annular ledge, such that said ring-shaped member presents an oval shape when it is in contact with the annular ledge for locking the volute spring in a tensioned state.

The invention relates to a swing axial-flow safety shut-off valve for natural gas. The shut-off valve comprises a hand wheel, a valve seat, a planar volute spring, a sealed turning plate, a rotating shaft of the sealed turning plate, and a safety shut-off valve director, wherein the sealed turning plate and the rotating shaft of the sealed turning plate are arranged on a valve body. The swing axial flow safe shut-off valve is characterized in that the sealed turning plate comprises a sealed turning plate connecting plate, a buffer spring, a connecting bolt for the sealed turning plate, a buffer spring seat and a connecting base plate, wherein the sealed turning plate is connected with the connecting base plate through a bolt, a threaded hole is formed in the centre of the connecting base plate and is connected with the sealed turning plate connecting bolt, and the sealed turning plate connecting bolt is in a stepped shaft shape; the left end of the sealed turning plate connecting bolt is connected with the buffer spring seat, the buffer spring is sleeved on the buffer spring seat, and the sealed turning plate is connected with the sealed turning plate connecting plate through the sealed turning plate connecting bolt. The swing axial-flow safety shut-off valve has the beneficial effects of integrating overpressure, underpressure, manual operation and long-distance control function together, and realizing four control effects by respectively trigging the different displacement directions of a runner.

The invention discloses a clutch relay device which comprises a driving shaft. A gear is arranged on the driving shaft, a spring box is arranged on the lateral side of the gear, a plane volute spring is arranged between the driving shaft and the spring box, the inner end of the plane volute spring is wound on the driving shaft, and the outer end of the plane volute spring is connected with the spring box. The clutch relay device uses the change of a relative angle between the driving shaft and the gear to achieve the double-clutch effects, solves the problem that a gear and a rack are meshed and demeshsed, solves the problem of collision and interference caused by desynchrony of double motors and guarantees stability of a relay process. The plane volute can achieve overrunning in a certain range, provides a certain range overrunning space, can keep pre-tightening force in an unloaded state and can restore the gear to the normal position.

An electric connector has a frame made of insulation, and a double-ended volute spring composed by an outermost base cylinder, and a pair of volute spring portions extending from the base cylinder so as to be contact with terminals of an electronic instrument. The base cylinder is secured in a hole formed in the frame.

Provided is a control method of a mechanical elastic energy storing permanent magnet motor group under various external disturbances. The permanent magnet motor group comprises a permanent magnet synchronous motor, a gear gearbox and a volute spring box used for mechanical elastic energy storing. The control method includes that a full system mathematical model including the permanent magnet synchronous motor, the gear gearbox and the volute spring box is constructed, and then non-linear internal model equations and a state feedback controller are designed aiming at various different an-harmonic cycle-bounded nonlinear external disturbances. According to the control method, the different non-linear internal model equations are designed, and the state feedback controller is designed on the basis of a nominal system control law. Test results prove that different nonlinear disturbance inputs can be completely restrained, the designed state feedback controller enables a closed loop system to fast track reference signals, angular velocity output by the permanent magnet motor group under various external disturbances is ensured to be basically stable, and high-accuracy servo control of the motor group is achieved.

The invention discloses a floating body rope wheel wave-activated generator. The floating body rope wheel wave-activated generator comprises an anchor base fixed into the seafloor, one end of a rope is fixed on the anchor base, the other end of the rope is fixedly wound on a coiling block which is of a cylinder shell structure, a mandrel is fixed below the floating body through a support, the mandrel, the motor and the coiling block are cocnetric, the motor wraps the periphery of the mandrel, and the coiling block wraps the periphery of the motor. An armature stator of the motor is fixed with the mandrel in a concentric mode, and a rotor enclosure with a permanent magnet can rotate freely on the mandrel. The two ends of the coiling block are both provided with volute springs, the inner end of each volute spring is fixed on the mandrel, and the outer end of each volute spring is fixed on the coiling block. The interior of the coiling block can drive the rotor enclosure to rotate through an overrunning coupler, and a sealing ring is sleeved on the portion, inserted into the holes formed in the two side end faces of the coiling block, of the mandrel. According to the floating body rope wheel wave-activated generator, the overrunning coupler drives the engine enclosure to rotate, rotation inertia can be reduced to the maximum extent, and core parts are all contained inside the coiling block. The floating body rope wheel wave-activated generator is compact in structure, capable of being manufactured easily in a modularized mode, low in cost, and beneficial to maintenance.

A wire coiling structure capable of locking and unlocking includes a bottom box, an inner core, a volute spring, a cover plate and a pawl assembly. The bottom part of the bottom box protrudes towards the inner side of the box and forms a protruding shaft. A first clamping groove is formed in the protruding shaft in the axial direction. The inner core is provided with a fixed board, a ratchet wheel and a wire arrangement wall body. The ratchet wheel and the wire arrangement wall body are arranged on two faces of the fixed board. A second clamp groove is arranged in the wire arrangement wall body. Two ends of the volute spring are respectively fixed in the first clamping groove and the second clamping groove. The cover board is arranged at the opening end of the bottom box in a covering manner. The pawl assembly includes a pawl, a spring and a knob. The spring sleeves the pawl. The knob is connected with one end of the pawl. The other end of the pawl extends into the bottom box to fit with the pawl. A wire coils the wire arrangement wall body of the inner core and the coiling and uncoiling of the wire are realized by utilizing the elastic potential of the volute spring. The pawl and the ratchet wheel fit with each other so as to realize locking and unlocking. At the same time, the invention also provides a charger employing the coiling structure capable of locking and unlocking.