40results about How to "Overcoming tension" patented technology

The invention relates to a bionic filter screen applied to a range hood. The bionic filter screen is arranged at a smoke cage hood at the lower end of a main engine of the range hood, and positioned at an air inlet at the upper end of an oil cup; a draught fan system provided with an air outlet is mounted in the main engine; the bionic filter screen is served as a big-end-up or big-end-down conical, rectangular conical or tetragonal conical metal thin shell; oil guide stems, oil trap stems and meshes are arranged on the bionic filter screen; the meshes take the shapes of parallelograms and are distributed with the oil guide stems with included angles; a plurality of the meshes are orderly and parallelly arranged at the upper and lower positions of the oil guide stems as well as symmetrically arranged at the left and right positions of the oil guide stems; the oil guide stems and the meshes are assembled as units and orderly distributed around the conical body of the bionic filter screen completely or partially; and the oil guide stems are parallel to the height h of the conical body of the bionic filter screen. The bionic filter screen provided by the invention is excellent in oil smoke trap, oil guide, resistance to oil dropping, resistance to oil hanging, and processing economy.

The invention discloses a gait rehabilitation training robot. The robot is characterized by comprising a weight reduction device, a gait simulative generator, a given motion trail and a personal computer. The weight reduction device and the gait simulative generator are installed on a pedal lever through a pair of protective boots worn by a trainer, and the pedal lever operates according to the given motion trail at a set speed in a set training pattern; the center line of the given motion trail is a closed curved trail fitting the walking of lower limbs of people, which is obtained by projecting the motion trail of an ankle joint in a three-dimensional space during normal walking into a two-dimensional space plane; and the personal computer is used for controlling the real-time speed of the gait simulative generator and selecting different training modes. By the adoption of the gait rehabilitation training robot disclosed by the invention, the problem of the consistency between the rehabilitation training gait trail and naturally walking gait trail of people can be solved.

The invention discloses a pressure limiting, safety and pressure relief integrated valve of a pressure cooker. The pressure limiting, safety and pressure relief integrated valve comprises a pressure limiting exhaust pipe, an upper threaded connector, a lower threaded connector, a safety pressure spring, a relief pressure spring, a sealing ring, a pressure limiting valve, an anti-blocking cover and a clamping structure. The pressure limiting exhaust pipe, the upper threaded connector, the lower threaded connector, the safety pressure spring, the relief pressure spring, the sealing ring, the pressure limiting valve, the anti-blocking cover and the clamping structure are combined with one another and are mounted on a lid of the pressure cooker. The working pressure of the pressure cooker is controlled by the exhaust pipe and the pressure limiting valve, the safety exhaust pressure of the pressure cooker is controlled under the matched effect of the exhaust pipe and the safety pressure spring, and the relief pressure of the pressure cooker is controlled under the matched effect of the threaded connectors and the relief pressure spring. Compared with a conventional safety valve of a pressure cooker, the pressure limiting, safety and pressure relief integrated valve has the advantages that a narrow inner cavity can be omitted, and blocking or failure can be prevented. Besides, the basic difference between the pressure limiting, safety and pressure relief integrated valve and a conventional pressure relief structure is that the relief pressure of the pressure cooker can be precisely designed and controlled by the pressure limiting, safety and pressure relief integrated valve, injury to people due to high-temperature food which is ejected out of the pressure cooker during pressure relief can be completely eradicated, a protective cover can be omitted during detection, and safety can be completely guaranteed during operation.

The invention discloses a fixed-range pulling device for textile yarns, and belongs to the field of textile processing machinery and equipment. The outer side of a pulling belt is provided with a pulling rack, a pulling motor is in transmission connection with the pulling belt by adopting a transmission belt, a reciprocating guide plate is slidably arranged in a reciprocating guide rod, a pullingplate gear is in engaged connection with the pulling rack, a backward tension spring is horizontally connected between the reciprocating guide plate and a reciprocating base, the side, along a forwardstop lever, above the reciprocating guide plate is fixedly provided with a yarn supporting connecting plate, the ends of the upper and lower sides of a pulling bracket are horizontally and rotationally connected with a yarn inlet rotating roller and a yarn outlet rotating roller respectively, and a drafting assistance rotating roller is horizontally arranged between an upper drafting rotating roller and a lower drafting rotating roller. The fixed-range pulling device for the textile yarns has the advantages that the structural design is reasonable, pulling processing can be conducted on the textile yarns rapidly and stably, the horizontal pulling amplitude can be adjusted according to the types and specifications of the textile yarns, the automation degree of yarn pulling processing is improved, and the processing and use needs are met.

The invention discloses automatic feed subpackage equipment. Feed in a stock bin falls into a separating cylinder after flowing through a hopper, the accommodated feed content of each separating cylinder is equal, when the hopper rotates to abut against a second cylindrical pin, the stock bin is closed by a valve plate, and the feed in the stock bin is not scattered on the periphery the equipment;and after the hopper rotates, the feed in the hopper can automatically flow through a first discharge hole and a second discharge hole and fall into the separating cylinder, while the arrangement ofa transmission plate, a sliding sleeve and a sliding block can ensure that each time the feed in the hopper is completely discharged into the separating cylinder, and the automation level of the wholeworking process is improved. According to the automatic feed subpackage equipment, the feed does not scatter, and the subpackage structure is more automated in the process of subpackage.

The invention discloses an anti-seismic bracket with the bump damping adjusting function. The anti-seismic bracket comprises a supporting cross beam, traction end parts and traction parts; an ejectorrod assembly is upwards connected to each traction end part at the two ends of the supporting cross beam along the dead center; the upper ends of the ejector rod assemblies are connected to a ceiling;the traction end parts are supported by utilizing the ejector rod assemblies; the traction parts are hinged to the symmetric positions of the left sides and the right sides of the ejector rod assemblies and the positions right behind the ejector rod assemblies; and the upper ends of the traction parts are fixed to the ceiling through hinge bases. According to the anti-seismic bracket, the bump damping adjusting function is achieved, in addition, after thrust is applied to the centers of the traction end parts at the two ends of the supporting cross beam and balance tensile force is simultaneously applied on the periphery of the thrust, prestress thrust can be added to the ejector rod assembly providing the thrust by utilizing the interaction between the thrust and the tensile force, pre-stress tensile force is provided for the traction parts providing the tensile force, so that the traction end parts at the two ends of the supporting cross beam can be in a stress state, the stabilityof the supporting cross beam can be well improved, and therefore the stability of a pipeline component is improved.

The invention provides a single-freedom rehabilitation mechanical hand driving device, and relates to a mechanical hand driving device. The single-freedom rehabilitation mechanical hand driving device solves the problems that the existing rehabilitation finger driving device uses rope driving; the rope friction and deformation exist in the rope driving; the rope tension is caused. An output shaft of a driving motor passes through one end of the first section of connecting rod to be fixedly connected with a first joint shaft; a synchronous belt is arranged on a first synchronous belt wheel and a second synchronous belt wheel; a gear is fixedly arranged on the other end of the first section of connecting rod through a first convex sleeve; the upper part of the second section of connecting rod is rotationally connected with the other end of the first section of connecting rod through a second joint shaft; a third joint shaft is arranged at the lower part of the second section of connecting rod; a half gear is fixedly sleeved on the third joint shaft; the gear and the half gear are mutually engaged; the second convex sleeve and the upper end of the third section of connecting rod are sleeved on the third joint shaft; a locking clamp groove is positioned in a position of being rotationally connected with the third section of connecting rod through a pin shaft; one end of the driving rod passes through the fixing block to be arranged in a through hole in a penetrating way. The single-freedom rehabilitation mechanical hand driving device is used for driving a mechanical hand.

The invention discloses an anti-seismic bracket early warning system and an early warning pull rod. Traction end parts located at the two ends of a supporting transverse beam are respectively articulated with a middle pull rod, a left pull rod, a right pull rod and a rear pull rod; one end of a jointed pipe of each pull rod is a swivel nut, and the other end of the jointed pipe is a supporting wall; side holes are symmetrically formed in the two ends of each jointed pipe, and thus, the structural body that the two ends of a jointed rod are connected to the swivel nut and the supporting wall isformed; the swivel nut is internally connected to a threaded rod; the two sides of the supporting wall are fixedly connected to sliding sleeves; sliding rods are respectively arranged in the slidingsleeves at the two sides in a sleeving manner; an inner sliding block is arranged in the jointed pipe in a sleeving pipe; the inner ends of the two side sliding rods are respectively fixed to the twosides of the inner sliding block; the outer ends of the two side sliding rods are respectively fixed to the two sides of an outer sliding block; a strong spring is connected between the inner slidingblock and the supporting wall; and a pressure sensor is arranged at the inner side of the supporting wall in a sleeving manner. The anti-seismic bracket early warning system can monitor the pressure change of each pressure part in real time through a control system, and even monitors the displacement change of each rod piece. When the variation range is greater than the set threshold value, a warning signal is sent out through a controller or a cloud monitoring system, and thus, an automatic early warning function can be provided.

The invention belongs to the technical field of mechanical timing, and particularly relates to a hydraulic gravity type clocked flip-flop which comprises a magnetic clamp ring, a vibrating ring, a casing, a trigger spring, a trigger ring, a magnetic conductive ring, a gravity plug and an impact ring, wherein a liquid medium is in the casing; and the gravity plug moves from the upper end of the casing to the lower end. After a timer is subjected to vibration, during movement, magnetic force of the vibrating ring and a first magnetic ring is reduced, the vibrating ring collides with the lower side of the magnetic clamp ring through the impact ring, magnetic force which the gravity plug is subjected to is reduced, the gravity plug begins to move downwards, and timing starts. When the gravity plug moves to be near a base plate, the gravity plug drives the trigger ring to move, the trigger ring collides with the magnetic conductive ring, and the impact force can trigger an external device. The gravity plug is subjected to lubricating and air insulating effects of hydraulic oil, the contact wall between the gravity plug and the casing is not oxidized, so that the timer has the advantages of being long in service life; due to no participation of electric power, the use range is very wide; and the hydraulic gravity type clocked flip-flop has a good use effect.

The invention discloses a coffee bean grinding and filtering device. The coffee bean grinding and filtering device comprises a shell, grinding rods, a base plate mechanism and a filtering mechanism, wherein the filtering mechanism is located in the shell and comprises a pair of second fixed pulleys, a second rubber ring, a pair of stay cords, an inner cylinder, a third rubber ring, a plurality ofpairs of springs, a first electric cylinder and a second electric cylinder; the outer side of the second rubber ring makes contact with the side wall of the shell in the circumferential direction, anda screen mesh is fixedly connected to the inner side of the second rubber ring in the circumferential direction; the upper ends of the pair of stay cords are separately fixed to the pair of second fixed pulleys, and the lower ends of the pair of stay cords are symmetrically fixed to the second rubber ring; an annular cavity is defined by the inner cylinder and the shell; the outer side of the third rubber ring is fixed to the side wall of the inner cylinder in the circumferential direction, a vibrating screen is fixed to the inner side of the third rubber ring in the circumferential direction, and the upper surface of the vibrating screen makes contact with the lower surface of the screen mesh; the multiple pairs of springs are fixed between the cavity and the second rubber ring; and thefirst electric cylinder and the second electric cylinder are symmetrically fixed to the bottom of the cavity, and the movable ends of the first electric cylinder and the second electric cylinder are fixed to the second rubber ring. The coffee beam grinding and filtering device has the beneficial effects that coffee beam powder meeting the granularity requirement can be rapidly separated out beforethe temperature is too high, and the uniform fineness and quality of the coffee beam powder are ensured.

The invention discloses a demonstration teaching aid for computer principle teaching, relates to the technical field of demonstration teaching aids for teaching, and solves the problem that the process of detaching a whole computer type touch screen by a worker is relatively slow. A demonstration teaching aid for computer principle teaching comprises a computer type touch screen, an L-shaped clamping plate B is arranged at the upper end of the computer type touch screen in a clamped mode, an L-shaped clamping plate A is arranged at the lower end of the computer type touch screen in a clamped mode, and a connecting rod is fixedly welded to the middle of the lower end of the L-shaped clamping plate A; and an angle adjusting mechanism is movably arranged at the lower end of the connecting rod, a supporting rod is fixedly welded to the lower end of the angle adjusting mechanism, and a plug-in mounting type fixing plate is fixedly connected to the rear end of the computer type touch screen in a fusion mode. The extension spring is arranged in the cylindrical shell, so that the interior of the cylindrical shell is elastically connected with the U-shaped clamping groove through the extension spring.

The invention discloses a silencer structure with damping structures. The silencer structure comprises a smoke inlet pipe and a sealed casing, wherein one end of the smoke inlet pipe is located in thecasing, and the other end of the smoke inlet pipe is located outside the casing; one end, located in the casing, of the smoke inlet pipe is connected and communicated with a first silencing pipe, andsilencing holes are formed in the first silencing pipe; one end of the first silencing pipe is communicated with the smoke inlet pipe, and a first damping structure is arranged at the other end of the first silencing pipe; the first damping structure comprises a first outer sleeve and a first inner sleeve, one end of the first outer sleeve is fixed on the first silencing pipe, the other end of the first outer sleeve is sealed, and the first inner sleeve is sleeved with the first outer sleeve; and an opening is formed in one end, close to the first silencing pipe, of the first inner sleeve, and the other end of the first inner sleeve is sealed. The damping structures are arranged in the silencer and the noise reducing effect of the silencer can be improved.

The invention relates to a device for clamping flexible pressure plates by means of lifting elements (39, 40) which are in the form of a knee lifting drive and arranged in a manner parallel to an axison a lower rail (43). In order to improve the clamping effect, the lower rail (43) is mounted so that it can be moved linearly and radially with respect to the plate cylinder (1) and with respect toan upper rail (44). One or more spring elements (47) acting upon the lifting elements (39, 40) are provided for moving the lower rail into a clamping position by displacing the lifting element (39, 40) into a working position. One or more expandable pneumatic or hydraulic elements (50) for moving the lower rail (43) into an open position by moving the lifting elements (39, 40) from the working position are provided.