50results about How to "Consistent resistance" patented technology

A current sensing circuit for a switched mode power converter employs a passive current sensing network coupled in parallel with the switched inductor. The passive current sensing network is impedance matched to the inductance its inherent resistance, and provides a current sensing node for single wire current sensing by a current sensing circuit. The passive current sensing network can be employed in each of a plurality of phased switching circuits that each contribute to an output of the power converter.

The invention relates to a die for controlling forming of an asymmetric complex-curved rebar forge piece by using a movable damping block, in particular to a forming die of an asymmetric complex-curved rebar forge piece, which solves the problem that the junction of the curved surface of an asymmetric complex-curved bar component is easily folded and not fully filled in the existing forming process. A male die (13) is provided with two pressure relief discharge openings (14), and the setting position of each pressure relief discharge opening (14) is positioned right above the corresponding side-ear connecting rib (17-1) of the asymmetric complex-curved rebar forge piece (17); the male die (13) is provided with a minor segment stepped hole (16); a movable damping block (24) is arranged in the lower end hole (16-2) of the minor segment stepped hole (16); a male die heating plate (10) is provided with a through hole (10-1) of a small punch (12) of a hydraulic press; and the through hole (10-1) of the small punch (12) of the hydraulic press corresponds to the minor segment stepped hole (16). The die is applicable to forming the asymmetric complex-curved rebar forge piece.

A road safety barrier having a plurality of ropes supported by posts rigidly mounted on or in the ground is described. Each rope is held in tension against the posts and supported in a notch or groove in a side of the posts. The ropes are released from a post and the post is not pulled from the ground when a vertical force is exerted on the rope. The ropes when weaved are tensioned against the posts and this gives rise to a combined frictional resistance to displacement of the ropes relative to each post along the length of the safety barrier. The structure of at least some of the posts and / or their mounting with respect to the ground defines a minimum bending yield strength in a direction along the length of the barrier. This minimum bending yield strength is greater than the bending moment resulting from the combined frictional resistance forces acting on the post.

A fitness device includes a strap, a handle, and a plate. The strap is substantially inelastic and flexible. The plate is substantially rigid. The handle at least partially envelopes the strap.

The present invention includes a rehabilitation apparatus that can assist a patient that has been impaired, injured / traumatized, or subject to degenerative conditions in his or her lower limbs. The apparatus may be designed to exercise the extension and flexion movements for a patient's leg after knee surgery. A thigh support link may be connected to an upper leg link, which is connected to a lower leg link for supporting the patient's leg during the extension and flexion range of movements. A foot plate with wheels may be connected to the lower leg link, and the wheels enable the foot plate to slide along a base as the patient moves in both directions. A sled or connector provides a flexible connection between the thigh support link and the base, which allows the thigh support link to travel along the base in conjunction with the foot plate wheels. The present invention provides adjustable, constant resistance as the extension and flexion exercises are done. In some embodiments, the resistance may be different for the extension and flexion ranges of motion. The resistance may be applied through the connection of the sled or connector to the base. This can be done with direct or magnetic resistance mechanisms. In one embodiment, one or more b-motors or magnetic clutches are used to provide magnetic resistance.

A recumbent exerciser includes a base, a right link and a left link are pivotably connected to the base and a right cam and a left cam are connected to the right link and the left link respectively. A right pedal and a left pedal are connected to two respective top ends of the right link and the left link, and a right swinging arm and a left swinging arm are connected to the right link and the left link. A resistance unit provides resistance to the right and left pedals and the right left swinging arms when the right and left cams are driven by operation of the user so as to exercise the user's hands and legs. The resistance unit is located remote from the seat so that the seat does not need to remove to maintain the resistance unit and the cams.

The invention provides an air-conditioner and a control method thereof. The air-conditioner comprises a first compressor and a second compressor which are arranged in parallel. The air-conditioner further comprises a first air suction pipe, a first air exhaust pipe, a second air suction pipe and a second air exhaust pipe, wherein the first air suction pipe and the first air exhaust pipe are connected to the first compressor, and the second air suction pipe and the second air exhaust pipe are connected to the second compressor. The air-conditioner further comprises a first temperature sensor, a second temperature sensor, a first regulating valve and a second regulating valve. The first temperature sensor is arranged on the first air exhaust pipe and used for acquiring the first air exhaust temperature of the first compressor, and the second temperature sensor is arranged on the second air exhaust pipe and used for acquiring the second air exhaust temperature of the second compressor. The first regulating valve is used for controlling the refrigerant suction volume of the first compressor, the second regulating valve is used for controlling the refrigerant suction volume of the second compressor, and the opening degree of the first regulating valve and / or the opening degree of the second regulating valve are / is determined through the difference value of the first air exhaust temperature and the second air exhaust temperature. According to the technical scheme, the problem that the refrigerant suction volumes of all the compressors in a parallel connection compressor set in an air-conditioner cannot be controlled easily in the prior art is effectively solved.

A tool bit storage and retrieval device includes a housing, a caddy configured to slideably engage an interior of the housing and to removeably receive a plurality of tool bits, and a magnet affixed to the caddy and configured to attract the plurality of tool bits. The caddy is moveable between an open position and a closed position. The closed position is defined by the caddy being substantially contained by the housing. The open position is defined by the caddy being translated outwardly from the housing. The plurality of tool bits are moveable between a first position when the caddy is in the open position, and a second position when the caddy is in the closed position.

A fitness device contains a strap, a handle, and a plate. The strap is substantially inelastic and flexible. The plate is substantially rigid. The handle at least partially envelopes the strap. A method of exercising with such a fitness device is also described herein. Other fitness devices and other methods of use are also described herein.

The invention discloses a strip-shaped traditional Chinese medicinal material cutting device and system and a cutting method. The cutting device comprises a shell, a first driving device is arranged on the shell, the lower end of the first driving device is connected with a connecting plate positioned in the shell, the first driving device is used for driving the connecting plate to move in the vertical direction, and the lower surface of the connecting plate is provided with an extrusion mechanism and a pre-cutting mechanism; when the connecting plate vertically moves downwards, the extrudingmechanism makes contact with strip-shaped Chinese medicinal materials earlier than the pre-cutting mechanism, the connecting plate continuously moves downwards after making contact, the length of theextruding mechanism is shortened, the strip-shaped Chinese medicinal materials are extruded, and meanwhile the pre-cutting mechanism penetrates and / or cuts the outer skin of the strip-shaped Chinesemedicinal materials. According to the strip-shaped traditional Chinese medicinal material cutting device and system and the cutting method, a plurality of puncture holes and / or cutting lines are formed in the outer skin through the pre-cutting mechanism so as to damage the integrity of the outer skin, the resistance of the outer skin and the inner core to a blade tends to be consistent, the bladeshaking caused by uneven stress is remarkably reduced, the cutting quality is improved, and the blade and a driving mechanism are protected.

The invention discloses a dust collector floor brush and a dust collector using the same. The dust collector floor brush comprises two wiping rollers which are arranged in parallel front and back, thewiping rollers are controlled by a one-way locking mechanism and can only rotate unidirectionally, the locking directions of the two wiping rollers are opposite, when the front wiping roller rolls forwards, the rear wiping roller is locked, and when the rear wiping roller rolls backwards, the front wiping roller is locked, a dust collection head is arranged between the two wiping rollers, the dust collector floor brush and the dust collector can achieve sweeping, mopping and sucking integration, dry and wet dual purposes are achieved, power consumption of the dust collector is reduced, and the beneficial effects of good cleaning effect, high cleaning efficiency and the like are achieved.

The invention discloses a sulfur dioxide converter gas outlet device which comprises a converter shell, an air outlet pipe cover plate, an air outlet pipe side plate and an air outlet pipe bottom plate and an air outlet pipe cover plate. The interior of the converter shell is provided with a first containing cavity. The air outlet pipe cover plate, the air outlet pipe side plate and the air outletpipe bottom plate are hermetically connected to form an air outlet pipe; a second containing cavity is formed in the air outlet pipe; the air outlet pipe cover plate, the air outlet pipe side plate and the air outlet pipe bottom plate penetrate through the converter shell in a sealed mode and horizontally extend inwards to the position near the center of the first containing cavity, and the air outlet pipe communicates with the first containing cavity and the outside. The part, located in the first containing cavity, of the air outlet pipe cover plate is provided with a plurality of open holes. A gas in the first containing cavity can enter the second containing cavity through the end circulation section, close to the center of the first containing cavity, of the gas outlet pipe, and thegas in the first containing cavity can enter the second containing cavity through the holes of the gas outlet pipe cover plate. The problem that in the prior art, the speed of airflow in a catalyst layer is not uniform can be solved.

A recumbent exerciser includes a base, a right link and a left link are pivotably connected to the base and a right cam and a left cam are connected to the right link and the left link respectively. A right pedal and a left pedal are connected to two respective top ends of the right link and the left link, and a right swinging arm and a left swinging arm are connected to the right link and the left link. A resistance unit provides resistance to the right and left pedals and the right left swinging arms when the right and left cams are driven by operation of the user so as to exercise the user's hands and legs. The resistance unit is located remote from the seat so that the seat does not need to remove to maintain the resistance unit and the cams.

A tool bit storage and retrieval device includes a housing, a caddy configured to slideably engage an interior of the housing and to removeably receive a plurality of tool bits, and a magnet affixed to the caddy and configured to attract the plurality of tool bits. The caddy is moveable between an open position and a closed position. The closed position is defined by the caddy being substantially contained by the housing. The open position is defined by the caddy being translated outwardly from the housing. The plurality of tool bits are moveable between a first position when the caddy is in the open position, and a second position when the caddy is in the closed position.

The invention provides a compound efficient cleaning method for a marine water-yielding stone cultural relic. The compound efficient cleaning method includes the following steps that a to-be-cleaned stone relic is placed in deionized water to be soaked for 24h-96h; after softening, scale formed products with the thicknesses no more than 2mm are cleaned by using a steam cleaning machine, and the injection distance is 2-10cm; scale formed products with the thicknesses being 2-4mm are cleaned by using a laser cleaning machine, and the scanning distance is 10-15cm; as for scale formed products with the thicknesses no less than 4mm, degreasing cotton is soaked by using a composite reagent prepared by mixing ethylenediaminetetraacetic acid disodium salt and diethylenetriaminepentaacetic acid, and cleaning is carried out in a surface wrapping and covering mode; and after cleaning the scale formed products on the surface, the salt of the stone cultural relic is removed by using an ultrasonic circulating water desalting method. According to the compound efficient cleaning method for the marine water-yielding stone cultural relic, the cleaning effect on marine water-yielding stone cultural relics is good, the scale formed products and salt on the surface of the cultural relic can be well removed, and the original appearance of the relics is preserved.

The invention discloses a non-resistance drying method and device for forming a rice-grade silicon carbide ceramic green body by gel injection molding. The method includes: providing a drying tool, including a panel, an outer frame and a back support plate; Assemble, and fill with silica gel between the two; use the drying tool to turn over the part placed on the bottom surface of the silicon carbide ceramic green body during the drying process and place it on the top, remove the back support plate, and remove the silicon carbide ceramic green body and the back support plate. Silica gel in between; reinstall the back support plate, fix the universal ball to the back support plate, adjust the height to make it contact with the silicon carbide ceramic green body, and apply pre-tightening force; use the drying tool to dry the silicon carbide ceramic green body The part placed on the bottom surface is turned over and placed below, so that all universal balls bear the gravity of the silicon carbide ceramic green body evenly; remove the panel; hang the outer frame, back support plate and silicon carbide ceramic green body into the drying liquid, and the silicon carbide ceramic green body The biscuit is dried.

The invention discloses a plating hanger with equalizing resistance values. The plating hanger comprises a hanger body consisting of a connector, an adapter, a connecting plate and a hook which are sequentially connected, the adapter is connected with the connecting plate through a load resistor, resistors of the hanger body include a body resistor, a contact resistor and the load resistor, and the resistance value of the load resistor is higher than that of the contact resistor. The plating hanger with the equalizing resistance values solves the problem of plating thickness inconformity caused by different resistance values of contact resistors of existing hangers. The plating hanger with the equalizing resistance values has the advantages that the hanger body is serially connected with the load resistor, the resistance value of the load resistor is far higher than that of the contact resistor, so that the influence of the contact resistor of the hanger is reduced and even can be ignored in plating, inconformity of the resistance values of hangers is changed, the resistance values of the hangers tend to be consistent, and current is equalized, so that plating thickness uniformity in plating is greatly improved.

The invention discloses a winding device of an activated carbon fiber filter, comprising a left side frame body and a right side frame body. The left side frame body and the right side frame body are connected through a bracket, a support arm used for supporting activated carbon fiber materials and a tension tube used for regulating the tautness of the activated carbon fiber materials are installed between the left side frame body and the right side frame body, a rotary disc used for driving a filter core to rotate is installed on one side frame body of the left side frame body and the right side frame body, and a rocker regulation type thimble used for tightly propping the filter core is installed on the other side frame body. The invention has reasonable structure, adopts the tension tube to regulate the tautness, can carry out regulation according to the thickness of the materials and the requirements of winding. After the activated carbon fibers are wound by adopting the invention, the relative consistence of tightness and fluid resistance is ensured, and the labor efficiency of winding is improved.

The invention discloses a resistance-free drying method and device for gelcasting of a meter degree silicon carbide ceramic biscuit. The method comprises the following steps that a drying tool is provided and comprises a panel, an outer frame and a back supporting plate; the drying tool and the silicon carbide ceramic biscuit are assembled, and silica gel is filled between the drying tool and thesilicon carbide ceramic biscuit; and the part, placed on the bottom surface, of the silicon carbide ceramic biscuit during the drying process of the silicon carbide ceramic biscuit is turned over andplaced on the above, the back support plate is disassembled, and silica gel between the silicon carbide ceramic biscuit and the back support plate is taken down; the back supporting plate is reinstalled, universal balls are fixed to the back supporting plate, the height is adjusted to enable the height to be in contact with the silicon carbide ceramic biscuit, and pre-tightening force is applied;the drying tool is used for overturning the part, placed on the bottom surface, of the silicon carbide ceramic biscuit in the drying process to be placed on the below, all the universal balls evenly bear the gravity of the silicon carbide ceramic biscuit; the panel is disassembled; and the outer frame, the back support plate and the silicon carbide ceramic biscuit are lifted into a drying liquid,and the silicon carbide ceramic biscuit is dried.

The invention discloses an intelligent table tennis serving machine, which comprises a table tennis serving machine head capable of rotating around a Y axle, wherein the front end of the table tennisserving machine head is provided with table tennis serving wheels and motors driving the table tennis serving wheels to rotate; the back end of the table tennis serving machine head is provided with abalancing weight; and the gravity center of the table tennis serving machine head and a rotating center line of the Y axle are positioned on the same vertical plane. Under the effect of the balancingweight, the gravity center of the whole table tennis serving machine head is regulated again, so that the gravity center of the table tennis serving machine head and the rotating center line of the Yaxle are positioned in the same vertical plane; the resistance required to be overcome by a driving motor is enabled to be consistent when the table tennis serving machine head does positive rotationand reverse rotation around the Y axle; on one hand, the service life of the motor is favorably prolonged; on the other hand, the rotating speed when the table tennis serving machine head does positive rotation and reverse rotation around the Y axle is enabled to be consistent as much as possible; and good experience is brought to users.

The invention relates to the field of heat storage and solar photo-thermal clean energy plus heat supply, in particular to a high-efficiency heat-exchange cross-season heat storage way for soil. The high-efficiency heat-exchange cross-season heat storage way comprises a solar double-shaft groove type heat collector, a solar soil heat-exchange cross-season heat storage unit and a heat energy transformation control unit, wherein the solar double-shaft groove type heat collector comprises a base, a height angle drive mechanism, an azimuth angle drive mechanism, a medium hose, a vacuum heat collecting tube, an upright post and a parabolic heat collection mirror field; the parabolic heat collection mirror field is fixed to the upper end of the upright post; the lower end of the upright post isfixed to the base; the vacuum heat collecting tube is fixed to the axis of the parabolic heat collection mirror field; the parabolic heat collection mirror field is respectively connected with the height angle drive mechanism and the azimuth angle drive mechanism; and the heat energy transformation control unit is electrically connected with the height angle drive mechanism and the azimuth angle drive mechanism. The high-efficiency heat-exchange cross-season heat storage way for soil is utilized to realize large-scale cross-season heat storage, increases the thermal utilization rate of solar light and improves the using efficiency of solar energy.

The invention relates to an optimum design method of a hydraulic ship lifter valve system with an anti-vibration performance. In order to reduce the vibration of the hydraulic ship lifter water delivery valve system generated under a high water head condition, the optimum design method provided by the invention is characterized by combining manners of 'optimizing a spatial arrangement type of three valves and improving a valve back pipeline shape', changing the original parallel arrangement of the three valves located at the same height into the spatial arrangement in a shape of the Chinese character 'Pin', and meanwhile, replacing a valve back multi-branch pipe joining section with an anti-vibration body with a 'cylindrical' shape, so that a valve back low-pressure vortex area is eliminated, the pulsating pressure is reduced, the flow velocity is reduced, and thus the aim of vibration resistance is achieved. According to the optimum design method of the hydraulic ship lifter valve system with the anti-vibration performance provided by the invention, the optimally designed anti-vibration body is provided with a circular flow section, so that the problem of stress concentration of vertex angles of a square structure is avoided, and design and construction can be carried out conveniently. A model test proves that the pulsating pressure of a valve back water flow and the vibration amplitude of a side wall of a pipeline can be effectively reduced, the valve back multi-branch pipe shape is simplified, and the safe operation of the hydraulic ship lifter water delivery valve system is ensured.

The invention discloses an intelligent electric screwdriver device and a control method thereof. The intelligent electric screwdriver device comprises an electric screwdriver head device, a resistance detection device and a central control unit, and the electric screwdriver head device is used for adjusting screw locking torsion on a pole piece of a to-be-detected object and collecting torsion information. The resistance detection device is provided with a first electrode electrically connected with the electric screwdriver head device and a second electrode electrically connected with the first electrode and can be used for detecting the resistance value of a resistor of a circuit between two screws at a first end and a second end of the to-be-detected object when the second electrode and the electric screwdriver head device are in corresponding contact with the screws at the first end and the second end of the to-be-detected object correspondingly. The central control unit is electrically connected with the electric screwdriver head device and the resistance detection module, and is used for collecting the torsion information and the resistance value of the resistor of the to-be-detected object and controlling the electric screwdriver head device to work on the basis of the torsion information and the resistance value of the resistor. The service life of a battery system is greatly prolonged, the capacity of the battery system is greatly improved, the verification link is simplified, the screw locking efficiency and the connection reliability are improved, and the workload of production workers is reduced.

The invention provides a circulating fluidized bed boiler with independent double flues. The circulating fluidized bed boiler comprises a hearth with N outlets, wherein N represents an even number andis greater than or equal to 4, N / 2 cyclone separators arranged on the outer side of the left wall of the hearth, N / 2 cyclone separators arranged on the outer side of the right wall of the hearth, wherein inlets of the cyclone separators are communicated with the outlets of the hearth, and two tail flues arranged on the outer sides of the left and right walls, wherein inlets of the tail flues arerespectively communicated with upstream gas outlets of the N cyclone separators. Through use of the two independent tail flues on the outer sides of the left and right walls, it is solved that gas-solid flowing nonuniformity caused by different flue structures at the outlets of the cyclone separators, high temperature level and low temperature level metal connection pipes are effectively reduced,the boiler thermal efficiency is improved and the boiler manufacturing cost is reduced.

The invention discloses a self-volatilization type mosquito repelling device. The device comprises a box body, the top of the box body is in threaded connection with a cover body, and a rotating speed adjusting cavity and a volatilization cavity are arranged inside the cover body from top to bottom. A rotating speed limiting mechanism is arranged in the rotating speed adjusting cavity and comprises a first rotating shaft and an L-shaped cylinder, the first rotating shaft is coaxially and rotatably arranged in the rotating speed adjusting cavity, and oblique teeth are evenly arranged on the outer side of the first rotating shaft; and the L-shaped cylinder is arranged on one side in the rotating speed adjusting cavity and comprises a horizontal pipe section and a vertical pipe section which communicate with each other, a piston is arranged in the horizontal pipe section in a sliding mode, an abutting rod is vertically arranged on the side, close to the rotating shaft, of the piston, and the end, away from the piston, of the abutting rod extends to the position between the oblique teeth of the first rotating shaft. The mosquito-repellent liquid release time can be adjusted, after the mosquito-repellent liquid is automatically diffused for a period of time, blocking is automatically conducted to avoid waste of the mosquito-repellent liquid, in the mosquito-repellent time period, the mosquito-repellent liquid volatilization efficiency and diffusion efficiency are improved, electric energy is not needed, and energy conservation and environment protection are achieved.

The objective of the invention is to provide a high-power anti-surge alloy sheet resistor with a double-sided resistive layer structure. The high-power anti-surge alloy sheet resistor comprises a heatdissipating substrate, wherein the upper and lower sides of the heat dissipating substrate are provided with resistive layers, insulating layers are arranged between the heat dissipating substrate and the resistive layers, and protection layers are arranged out of the resistive layers. According to the high-power anti-surge alloy sheet resistor with the double-sided resistive layer structure in the invention, the resistive layers cover two surfaces of the heat dissipating substrate; when current passes through the upper and lower resistive layers, effect equivalent to the parallel connectionof two circuits is produced; since the current of the whole chip resistor is distributed to the two resistive layers, current passing through the resistive layers is reduced, the heat generation of the chip resistor is greatly lowered, and heat is directly transmitted to the heat dissipating substrate through the upper and lower resistive layers; and thus, the heat transfer of the entire resistoris improved, and heat distribution is more uniform.

An array substrate and a display device are provided. The array substrate is provided with a display area and a non-display area, and the array substrate further includes a plurality of thin film transistors, a driving circuit, a plurality of polysilicon resistors, and a plurality of fan-out wires. The thin film transistor array is arranged in the display area, and each thin film transistor is provided with an input end. The driving circuit corresponds to the non-display area, and the driving circuit is provided with an output end. The polysilicon resistors and the fanout wires correspond to the non-display area. Two ends of each polysilicon resistor are respectively connected to the input end of a corresponding thin film transistor and the output end of the driving circuit through a corresponding fanout wire.

A 2U door for intelligent parking equipment comprises an upper door frame, a left door frame, a right door frame, a lower limiting switch frame, an upper door plate set, a middle door plate set, a lower door plate set, a hanger, high-speed door tracks, steel cable wheel brackets, low-speed door plate steel cable wheels, an upper limiting bracket, hanger steel cable wheel sets, hanging rod bolt sets, a driving groove wheel set, a steel wire rope, a motor seat, a counterweight box and a counterweight guiding cabinet. All the parts are combined closely to play a role, so that in the operating process, stability is achieved, resistance is consistent, abrasion is reduced, the vehicle parking and picking-up efficiency is improved, the needs of twenty-five layers of parking equipment on the ground are met, and the problem that parking is difficult in large cities is solved.