40results about How to "Good reset function" patented technology

The invention relates to an annular frictional rotating shockproof supporting base. The annular frictional rotating shockproof supporting base comprises an upper cover plate, a rotating rigid body, an annular frictional wall, a buffer spring, a suspending steel block, and a base; the lower part of the upper cover plate is provided with a convex hemispheroid, the upper part of the rotating rigid body is provided with a groove, and the convex hemispheroid is meshed and contacted with the groove; the center of the lower part of the rotating rigid body is provided with a spherical groove, and the spherical groove is in supporting connection with the hemispheroid to form rotating contact in every direction; the overall side face of the rotating rigid body is provided with a spherical face and forms a frictional contact with the annular frictional wall; when the rotating rigid body is rotated, the rotating rigid body rubs the annular frictional wall to dissipate the earthquake energy; one ring at the bottom part of the rotating rigid body is provided with a vertical buffer spring, and the other end of the buffer spring is connected with the suspending steel block; the suspending steel block is placed in a block opening of the base, and the thickness of the suspending steel block is less than the height of the block opening; when the rotating rigid body is rotated to a certain position, the buffer spring can upwards raise up so as to drive the suspending steel block to upwards move; when the buffer spring is contacted with the block opening, the buffer spring is stretched to limit the movement of the rotating rigid body.

The invention relates to a multifunctional external sealing device for a medical operation puncturing device. The multifunctional external sealing device for the medical operation puncturing device comprises an upper pressing cover, a lower pressing cover, a base, a supporting base, a top base, a sealing film assembly, a supporting piece assembly and a sealing cushion assembly, wherein the upper pressing cover is fixed with the lower pressing cover, the sealing film assembly is installed between the base and the supporting base, the supporting piece assembly is installed between the supporting base and the sealing cushion assembly, the sealing cushion assembly is installed between the supporting piece assembly and the top base, the base, the supporting base, the top base, the sealing film assembly, the supporting piece assembly and the sealing cushion assembly are installed in the upper pressing cover and the lower pressing cover, and the sealing cushion assembly and the lower pressing cover are fixed. The multifunctional external sealing device for the medical operation puncturing device is reasonable in design, good in sealing effect, long in service life, and suitable for instruments with different external diameters and specifications, ensures that an operation is more conveniently and simply and faster conducted, and effectively shortens operation time.

The invention relates to a reset circuit, which comprises a power-on reset circuit and a power-off reset circuit, wherein the power-on reset circuit comprises a first field-effect tube, a second field-effect tube, a third field-effect tube, a first two-input NAND gate, a second two-input NAND gate, a first NOT gate, a second NOT gate, a third NOT gate, a fourth NOT gate, an OR gate, a first capacitor, a second capacitor and a buffering delay module; and the power-off reset circuit comprises fourth to tenth field-effect tubes, a fifth NOT gate and a buffering module. The reset circuit can well execute a reset function, is simple, low in cost and high in electro magnetic compatibility (EMC), can be widely used in integrated circuits, particularly integrated circuits with strict requirements on cost control such as infrared circuits, as well as most microprogrammed control units (MCUs) and circuits with high requirements on anti-interference performance and EMC performance.

The invention relates to a self-reset anti-buckling supporting device which comprises an external constraint unit, an inner core and a reset device. The reset device is a reset spring component. The external constraint unit is used for containing the bending deformation of the inner core. The reset spring component is used for recovering the stretch or compression deformation of the inner core. The reset spring component can generate reactive force to conduct resetting without exerting prestressing force after a spring bears force and deforms, the residual deformation of the device under great shock can be reduced while the good energy consumption capacity of anti-buckling supporting is ensured, and then the preset resetting effect is achieved. Compared with prestress type self-reset anti-buckling supporting, the resetting function during supporting pull and press can be more conveniently achieved. The self-reset anti-buckling supporting device is simple in structure, low in price, convenient to machine and manufacture and beneficial to engineering application and popularization.

The invention provides a large-span grid structure multidirectional bearing and anti-seismic spherical hinge support joint, comprising an upper support, a lower support and a flexible steel bar group.An upper support base is located at the lower end of the upper support, and a lower support supporting seat is located at the upper end of the lower support. The spherical convex face of the upper support base and the spherical concave face of the lower support supporting seat are connected in an embedded fit mode. The upper support and the lower support are connected through the flexible steel bar group. Micro vertical, horizontal and rotary displacements can be allowed, the stability of the structure out of the plane is limited, and the load effects of bearing vertical pressure, stirring force, horizontal force, bending moment, earthquake force, temperature stress and the like are achieved. The structure is used for absorbing and consuming loads caused by earthquakes, the form of support nodes is simplified, good anti-seismic and damping effects on the upper grid structure are achieved, the influence of complex loads on deformation of the lower structure is reduced, and the overallanti-seismic performance of the structure is improved. The manufacturing is simple, the development of an assembly type space structure is promoted, and engineering popularization and application arefacilitated.

The invention discloses a load capacity self-measuring transducer of a freight vehicle. The transducer comprises a transducer shell body, hydraulic medium, a pressure transducer, a n-shaped fixed steel tube, a guide wire and a piston device, wherein the piston device is respectively formed by two piston rods and two piston plates and the upper portion and the lower portion of the piston device are symmetrical, the hydraulic medium is filled between the upper portion of the piston device and the lower portion of the piston device, the pressure transducer is installed on a fixed steel plate and converts a pressure value to an electrical signal, the middle section of the fixed steel tube bypasses an axle, the right end and the left end of the fixed steel tube penetrate through the fixed steel plate, the shape of the fixed steel tube is n-shaped, and the guide wire is used for transmitting the signal output by the pressure transducer to a cab and showing in a form of a weight numerical value finally. The transducer has the advantages of being simple in structure, stable in operation and accurate in measurement, and not damaging the structure of an original car body because the whole device is installed on the bottom portion of a steel plate spring of the original car body. Through the hydraulic medium, the pressure is distributed uniformly to be passed on conveniently and the device is also good in reset function and with the change of load weight, the piston device changes in real-time mode under an effect of the hydraulic medium and the steel plate spring.

The invention discloses a shock-insulating elastic returning mechanism with the preset starting load. The shock-insulating elastic returning mechanism comprises a guide rod, at least two stopping blocks and a preset starting load elastic unit; the stopping blocks are arranged on the guide rod in a sleeving manner; and the preset starting load elastic unit comprises a spiral steel spring, the spiral steel spring is arranged on the guide rod in the sleeving manner and between the stopping blocks, and the spiral steel spring is a pre-pressed spiral steel spring and has a pre-pressed length and the preset starting load. When an external load generated by shock is larger than the preset starting load, the spiral steel spring is started; thus, the shock-insulating elastic returning mechanism has the preset starting load function. The invention also discloses start-control shock insulating equipment with the preset starting load.

The invention discloses a load capacity self-measuring system of a freight vehicle. The transducer comprises a self-measuring transducer device installed on the bottom portion of a steel plate spring of the freight vehicle, medium pipelines drawn forth from the bottom portion of the self-measuring transducer device, a pipeline connecting device used for enabling the tail ends of a plurality of the medium pipelines to be connected, a gathering device which is connected with the pipeline connecting device through a gathering pipeline and guide wires used for sending all signals sent by the gathering device to a cab and showing in a form of a weight numerical value finally. The load capacity self-measuring system has the advantages of being simple in structure, stable in operation and accurate in measurement, and avoiding damaging the structure of an original car body because the whole device is installed on the bottom portion of the steel plate spring of the original car body. Through hydraulic medium, not only is pressure transmitted in an even distributing mode conveniently, but also a good resetting function is achieved, and with the change of load capacities, a piston device changes in real time under the effects of the hydraulic medium and the steel plate spring.

The invention discloses a friction pendulum type shock absorption and isolation support seat, which comprises an upper seat plate, a lower seat plate, a double-spherical-surface rotating block and position limiting blocks, wherein the double-spherical-surface rotating block is arranged between the upper seat plate and the lower seat plate, the position limiting blocks are respectively and fixedly arranged on the lower surfaces of the left end part and the right end part of the upper seat plate in the transverse axial direction, one ends of the position limiting blocks are in contact with the side surface of the double-spherical-surface rotating block, the upper surface and the lower surface of the double-spherical-surface rotating block are respectively spherical surfaces, and the lower surface of the upper seat plate and the upper surface of the lower seat plate are provided with recessed spherical surfaces matched with the upper seat plate and the lower seat plate. The friction pendulum type shock absorption and isolation support seat has the beneficial effects that the friction energy consumption is obvious, the resetting function and the durability are good, the fireproof and wear-resistant functions are realized, the period is fixed, the structure is simple, the size is small, and the cost is low.

The invention discloses a connecting device of a USB plug. The connecting device of the USB plug comprises a support and a connecting device body. A first pin shaft and a second pin shaft are formed at the two ends of the connecting device body respectively and are rotatably mounted at the two ends of the support respectively, and a reset spring used for driving the connecting device body to reset is arranged between the support and the connecting device body. The connecting device has the function of reciprocating swing, the function of flexible contact is achieved when the connecting device is plugged or unplugged in a computer, damage caused by improper force exertion to welding pins of the connecting device is avoided, and an auxiliary circuit board on the connecting device is also protected. Furthermore, due to the fact that the connecting device has the automatic reset function, the alignment action can be more accurate and faster when the connecting device is plugged or unplugged.

The invention discloses a special type protection mask, which comprises a mask body and a tying belt which is connected to the mask body, wherein a static filter cotton layer, an activated carbon layer, a visco-elastic layer and a medical absorbent gauze wrapping sleeve are contained in the mask body; the static filter cotton layer, the activated carbon layer and the visco-elastic layer are put in the medical absorbent gauze wrapping sleeve in sequence and are sewn and connected into a whole. The special type protection mask has the advantages that a plurality of protection layers are contained in the special type protection mask, the protection mask is tightly fitted to the face during use, can effectively filter particulate matter, toxic substances and dust, and the special type protection mask has an excellent protection effect for people who work and live under special environments and special weather.

The invention discloses a multiple combination energy-dissipating damper, comprising an auto-adjustable frictional energy-dissipating device and a shape memory alloy energy-dissipating self-restoring device; the auto-adjustable frictional energy-dissipating device comprises a main plate, an upper auxiliary plate and a lower auxiliary plate, the main plate is connected to the upper auxiliary plate and the lower auxiliary plate through high-strength bolts, and friction sheets are penetrated by the high-strength bolts and clamped between the main plate and the upper auxiliary plate as well as between the main plate and the lower auxiliary plate; the shape memory alloy energy-dissipating self-restoring device comprises a rocking plate, a left slide rod, a right slide rod and shape memory alloy wires, the head of the rocking plate is hinged to the main plate, the upper and lower auxiliary plates are each provided with a left slide hole and a right slide hole, the left slide rod and the right slide rod are arranged in the left slide hole and the right slide hole respectively, and the ends of the left and right slide rods are wound with the shape memory alloy wires. The shape memory alloy energy-dissipation and frictional energy-dissipation are combined in the multiple combination energy-dissipating damper; the multiple combination energy-dissipating damper has good energy-dissipating shock reduction and restoring functions; a displacement amplifier is provided, so that the shape memory alloy wires are more value in use and the cost is low.

The invention relates to a traditional Chinese medicine raw material slicing device. The traditional Chinese medicine raw material slicing device comprises a rack. A conveying belt is arranged on therack. The feeding end of the conveying belt is provided with a hopper used for restraining medicinal materials to horizontally move. An opening allowing the medicinal materials to descend is formed inthe lower end of the hopper. A slicing knife and a material supporting surface which are arranged at intervals up and down are arranged at the lower end of the hopper and are horizontally arranged. The distance between the slicing knife and the material supporting surface is consistent with the slice thickness of the medicinal materials. The material supporting surface is used for supporting themedical materials. The slicing knife and the material supporting surface are connected with a driving mechanism. The driving mechanism is used for driving the slicing knife and the material supportingsurface to horizontally move. The slicing knife horizontally moves to slice the medicinal materials. The material supporting surface horizontally moves to transfer the sliced medicinal materials to the conveying belt. The traditional Chinese medicine raw material slicing device is stable in structure, reasonable in layout, stable in operation, high in slicing efficiency, low in slicing crushing rate and capable of realizing automatic slicing processing and meeting existing use requirements.

The invention provides a framework type buffer device and a setting method thereof. A plurality of height adjusting devices which are connected with an upper framework and can make the upper frameworkor a lower framework freely ascend and descend up and down are fixed to the lower framework; a plurality of combined type elastic buffer pieces are arranged between every two adjacent height adjusting devices; and the upper ends and the lower ends of the combined type elastic buffer pieces are fixedly connected with the upper framework and the lower framework respectively. Due to the fact that the plurality of height adjusting devices are arranged between the upper framework and the lower framework, the upper framework or the lower framework can ascend and descend freely up and down, and a guide basis is provided for downward movement under pressure and movement after pressure relief; and due to the fact that the plurality of combined type elastic buffer pieces are arranged between everytwo adjacent height adjusting devices, the device can achieve the function of quickly absorbing and slowly dissipating impact energy, effectively reduces the impact force to protect a moving body, hasa reset function, is good in corrosion resistance and fatigue resistance, can be repeatedly used to reduce the application cost, can adapt to application environments with different buffer space scales, and is wide in application range.

The invention belongs to the technical field of structural seismic safety, and provides an unidirectional large damping friction pendulum supporting seat. The unidirectional large damping friction pendulum supporting seat comprises an upper seat plate, an upper super-high pressure wear plate, a double convex curved surface ball core, a lower super-high pressure wear plate and a lower seat plate arranged from top to bottom in sequence; unidirectional point-like textured structures are arranged on the end surface of a unidirectional damping plate, the unidirectional point-like textured structures are concentrically and finely distributed, and are in the radial direction of a concentric circle, the point-like textured structures corresponding to the center of a circle are of symmetrical barbed structures, and tips of the barbed structures faces the center of the circle. According to the unidirectional large damping friction pendulum supporting seat, the function of unidirectional dampingis realized and excellent hysteresis performance is achieved; fine unidirectional point-like protruding textures are distributed on the unidirectional damping plate, large unidirectional friction coefficient in the single direction and small friction coefficient in the return direction can be realized, and the function of support resetting is facilitated; and the point-like texture protruding structures are finely distributed in a discontinuous concentric circle, so that fine wear particles generated under the action of friction can be cleaned out through intervals of the point-like texture protruding structures, and the smooth work of the supporting seat is ensured.