34results about How to "Small corner" patented technology

The invention relates to an active headrest with a hinge structure, which comprises a front cover of the headrest and a rear cover of the headrest. The middle upper part of the front cover of the headrest and the rear cover of the headrest is equipped with a hinge ejection system; A pole fixing and activating system is provided under the ejection system; a rack locking system is provided between the hinge ejection system and the pole fixing and activating system; the pole fixing and activating system is composed of a pole and a cable; The cable is located between the seat back and the hinge ejection system; the strut is fixed on the seat frame; the rack locking system is composed of a fixed rack and a movable rack; the The headrest front cover is made of energy-absorbing material. The invention makes it possible for the active headrest to instantly rise and tilt forward in order to protect the head when the passenger car collides, and the distance between the occupant's head and the headrest is reduced at the moment of collision, thereby greatly reducing the The turning angle of the head of the small occupant reduces or eliminates whiplash on the occupant's neck.

The invention relates to a marine single pile foundation with a sand pile reinforcement foundation, and belongs to the field of pile foundations of ocean engineering. The technical scheme adopted by the invention is that a steel pipe pile is sunken in a seabed, the seabed is a soft soil foundation, a reinforcement foundation with a sand pile process is arranged in a local area of the soft soil foundation, and the steel pipe pile is inserted in and penetrates through the reinforcement foundation and is sunken in the soft soil foundation; the reinforcement foundation comprises sand piles and soft soil among the sand piles; the sand piles are uniformly arranged at intervals; and the center longitudinal axis of the reinforcement foundation is consistent with that of the steel pipe pile. Each sand pile comprises a compaction sand pile. With the characteristics of high horizontal bearing capacity, small horizontal displacement of a pile top, small inclination angle of a pile body, high foundation stiffness, and adaption to large horizontal load of an offshore wind turbine, the marine single pile foundation meets the strict requirements of the offshore wind turbine on the foundation horizontal displacement and the pile body inclination angle, and meets the requirement of 'structure+foundation" overall natural vibration frequency.

The invention discloses a spiral double-rocker composite hinge groove cam combination space mechanism for a sliding-plug door, and relates to a sliding and plug, sealing, opening and closing mechanism for the sliding-plug door of a vehicle, in particular to a spiral double-rocker composite hinge groove cam combination space mechanism for the sliding-plug door of high-speed rail or other railway vehicles. The mechanism comprises a motor, a coupler, a screw, a bearing shaft, a shaft sleeve, a nut, a short rocker, a door carrying rocker (a rocker for short), a connection rod, a door handle, a roller, a roller shaft, a groove cam, a door leaf and a door frame, wherein a spiral mechanism consists of the screw, the nut and the door frame; a double-rocker mechanism consists of the bearing shaft, the shaft sleeve, the short rocker, the rocker, and the connection rod; a groove cam mechanism consists of the bearing shaft, the rocker, the roller, the roller shaft, the groove cam, the door handle, the door leaf, and the door frame; a rotation pair consists of the upper end of the connection rod and the short rocker; a composite hinge consists of the lower end of the connection rod, the rocker and the door handle; and the spiral mechanism, the double-rocker mechanism and the groove cam mechanism are connected to form the spiral double-rocker composite hinge groove cam combination space mechanism.

A wholly automatic decelerating clutch and a washing machine thereof pertain to washing machine technical field; an output shaft of the wholly automatic decelerating clutch consists of a small whirlpool agitator shaft, a large whirlpool agitator shaft and a dewatering shaft that are sleeved concentrically; the whirlpool agitator of the washing machine adopting the wholly automatic decelerating clutch is a small whirlpool agitator and a large whirlpool agitator, wherein the small whirlpool agitator is fixedly arranged on the small whirlpool agitator shaft and in the center part of the large whirlpool agitator, and the large whirlpool agitator is fixedly arranged on the large whirlpool agitator shaft, and an inner bucket is fixedly arranged on the dewatering shaft. The washing manner of thewashing machine adopting the wholly automatic decelerating clutch is that: the small whirlpool agitator, the large whirlpool agitator and the inner bucket are mutually, reversely and bidirectionally rotated to and fro at a certain ratio, different speeds and different rotating angles, to produce complicated, vertically and horizontally crossed impacting water flow, to strike and rinse clothes, and fully roll, strongly rub and sway the clothes, thus improving the cleanness rate of clothes and not twisting the clothes; when the clothes are dewatered, a torsional spring automatically integrates the decelerating clutch into a whole, and decenters and dewater the clothes in high speed, without needing a whole set of clutch parts and operating mechanisms of the normal decelerating clutch.

The invention discloses a rapid contrast adjusting mechanism. The rapid contrast adjusting mechanism comprises a base plate, a first light blocking sheet and a second light blocking sheet. The base plate is provided with three base plate axle holes in the same straight line. A crescent base plate limiting groove is formed between every two adjacent base plate shaft holes. A transmission shaft of a transmission gear penetrates through the base plate axle hole in the middle and then is connected with one end of a compression spring, and the other end of the compression spring is connected with a control frame. The transmission gear is connected with a motor. A light blocking sheet center shaft and a light blocking sheet limiting shaft are arranged at the lower portion of the first light blocking sheet, a light blocking sheet center shaft and a light blocking sheet limiting shaft are arranged at the lower portion of the second light blocking sheet, the light blocking sheet center shafts penetrate through the base plate axle holes in the edges respectively, the light blocking sheet limiting shafts penetrate through the base plate limiting grooves, the two light blocking sheet center shafts are connected with a second return spring and a third return spring respectively after penetrating through the base plate, and the other end of the second return spring and the other end of the third return spring are fixed to the base plate.

The invention discloses a pneumatic hydraulic jack which comprises a jacking oil cylinder, an oil tank, a transiting plate and a pneumatic booster, wherein the oil tank is connected with the jacking oil cylinder through an oil supply channel on the transiting plate and is used for pumping hydraulic oil into the jacking oil cylinder through the pneumatic booster connected with the oil supply channel; an oil passing interface, a first one-way valve, a plunger pump interface and a second one-way valve are arranged in the oil supply channel; the oil passing interface, the first one-way valve and the plunger pump interface are communicated with each other in turn; the second one-way valve is communicated with the jacking oil cylinder; the second one-way valve is vertically arranged and is in a same axis with the plunger pump interface; the first one-way valve is arranged in the oil supply channel between the plunger pump interface and the second one-way valve; a third one-way valve is arranged in an oil return channel; the jacking oil cylinder is communicated with one end of the third one-way valve; the oil passing interface is communicated with the other end of the third one-way valve; and a pressure-relieving component for controlling the switch-on / off of the third one-way valve is arranged in the transiting plate. The pneumatic hydraulic jack provided by the invention has the advantages that the structure is simple, the oil-way corner is few, the friction of hydraulic oil is reduced, the temperature rise and pressure loss of the hydraulic oil are reduced and the jacking tonnage of the jack is increased.

The invention relates to a wedge-block type one-way clutch. The surface of a star wheel inner hole is a smooth cylindrical face. A drive gear in a drive gear assembly is arranged in the star wheel inner hole, and the peripheral surface of the drive gear is a smooth cylindrical face. A plurality of wedge blocks are arranged between the star wheel inner hole and the periphery of the drive gear, and the multiple wedge blocks are tightly arranged to form a circle in a surrounding manner in the circumferential direction. Each wedge block is provided with a slotted groove with an opening located in the outer end of the wedge block. The bottom faces of the slotted grooves are inclining faces, and the inclining directions of the bottom faces of the slotted grooves of all the wedge blocks are the same. Elastic rings are embedded in the slotted grooves of the wedge blocks forming one circle in the surrounding manner and have inward tightening force for the wedge blocks forming one circle in the surrounding manner. Under the action of the tightening force of the elastic rings, the outer ends of the wedge blocks conduct wedge-caulking on the surface of the star wheel inner hole, and the inner ends of the wedge blocks conduct wedge-caulking on the surface of the periphery of the drive gear. The wedge-block type one-way clutch is compact in structure, ingenious in design, small in size, small in weight, large in transmission power and high in machining precision, and the one-way clutch can have more stable work performance, higher reliability and longer service life.

A motor-car type pure electric BRT road train structure, which is composed of a guiding locomotive (1) and one or more pairs of power carriages (2), each pair of power carriages (2) is composed of two sections of single carriages; The guiding headstock (1) has a double-bridge structure, and each pair of power carriages (2) has two axles, which are respectively arranged in the middle of the two sections of single carriages. The front axle (4) of the guiding headstock is a steering The rear axle (5) is a drive axle, and at least one of the two axles of each pair of power carriages (2) is a drive axle; between the guide head (1) and the pair of power carriages (2), two groups Adjacent pairs of power carriages (2) are connected by a single ordinary traction hinge (9), and the middle of each pair of power carriages (2) is connected by an upper hinge (10) and a lower hinge (11); the power carriages The paired structure forms a central symmetry and can travel in both directions. The length of the structure can be adjusted according to the needs of different transportation volumes, the circle width of the turning channel is greatly reduced, and the wheel tracks are consistent when turning.

The invention discloses a pneumatic hydraulic jack which comprises a jacking oil cylinder, an oil tank, a transiting plate and a pneumatic booster, wherein the oil tank is connected with the jacking oil cylinder through an oil supply channel on the transiting plate and is used for pumping hydraulic oil into the jacking oil cylinder through the pneumatic booster connected with the oil supply channel; an oil passing interface, a first one-way valve, a plunger pump interface and a second one-way valve are arranged in the oil supply channel; the oil passing interface, the first one-way valve and the plunger pump interface are communicated with each other in turn; the second one-way valve is communicated with the jacking oil cylinder; the second one-way valve is vertically arranged and is in a same axis with the plunger pump interface; the first one-way valve is arranged in the oil supply channel between the plunger pump interface and the second one-way valve; a third one-way valve is arranged in an oil return channel; the jacking oil cylinder is communicated with one end of the third one-way valve; the oil passing interface is communicated with the other end of the third one-way valve; and a pressure-relieving component for controlling the switch-on / off of the third one-way valve is arranged in the transiting plate. The pneumatic hydraulic jack provided by the invention has the advantages that the structure is simple, the oil-way corner is few, the friction of hydraulic oil is reduced, the temperature rise and pressure loss of the hydraulic oil are reduced and the jacking tonnage of the jack is increased.

The invention discloses a hypersonic mach-number-variable wind tunnel nozzle which comprises two opposite pneumatic panels and two opposite lateral straight panels. A two-dimensional contracting-expanding passage is formed by the pneumatic panels and the lateral straight panels, and the two or one of the two pneumatic panels can rotate with outlet ends as shafts. The upper pneumatic panel and the lower pneumatic panel are used, so that airflow rotation angles of outlets are smaller, flow fields are symmetric, and proportion of an airflow core area is larger. In addition, without a complex control mechanism, the rotary nozzle is simpler in structure, and a sealing space and a cooling space are added. The hypersonic mach-number-variable wind tunnel nozzle has the advantages that mach-number variable range is wide, structure is simple, the flow fields are high-quality, the sealing space and the cooling space of the nozzle can be both considered, and the nozzle is high in adaptability, process and economy.

The invention relates to a wedge-block type one-way clutch. The surface of a star wheel inner hole is a smooth cylindrical face. A drive gear in a drive gear assembly is arranged in the star wheel inner hole, and the peripheral surface of the drive gear is a smooth cylindrical face. A plurality of wedge blocks are arranged between the star wheel inner hole and the periphery of the drive gear, and the multiple wedge blocks are tightly arranged to form a circle in a surrounding manner in the circumferential direction. Each wedge block is provided with a slotted groove with an opening located in the outer end of the wedge block. The bottom faces of the slotted grooves are inclining faces, and the inclining directions of the bottom faces of the slotted grooves of all the wedge blocks are the same. Elastic rings are embedded in the slotted grooves of the wedge blocks forming one circle in the surrounding manner and have inward tightening force for the wedge blocks forming one circle in the surrounding manner. Under the action of the tightening force of the elastic rings, the outer ends of the wedge blocks conduct wedge-caulking on the surface of the star wheel inner hole, and the inner ends of the wedge blocks conduct wedge-caulking on the surface of the periphery of the drive gear. The wedge-block type one-way clutch is compact in structure, ingenious in design, small in size, small in weight, large in transmission power and high in machining precision, and the one-way clutch can have more stable work performance, higher reliability and longer service life.

The vehicle is structured so that a steering shaft 12 is installed rotatably on a body frame, a tie rod and a knuckle arm are installed in the lower part of the steering shaft 12 through a steering arm 66, and wheels are mounted on the knuckle arm rotatably, wherein the steering shaft 12 is divided into a plurality of shaft sections (an upper shaft 71, a middle shaft 73, and a lower shaft 75), which are coupled together by hook type joints (a first hook joint 72 and a second hook joint 74).

The invention relates to a wide-width high-speed printing machine for woodgrained paper. The machine comprises an uncoiling unit, an uncoiling traction system, a plurality of printing units, a coiling traction mechanism and a coiling unit which are sequentially arranged based on the process; each printing unit comprises a printing body; a drying structure is arranged at a subsequent station of each printing body, comprising a bullet-shaped supporting frame, wherein the bullet-shaped supporting frame is composed of two arc-shaped surfaces; a plurality of positioning guide rollers for fixing paper tapes are arranged on the outer surfaces of the supporting frames; an air box which is in a shape matched with the arc shape of the outer surface of each supporting frame 33 is arranged at the outside of the outer surface of each supporting frame. According to the machine, a paper coil is supported by hydraulic propping and a variable width discharging and coiling mechanism is utilized for coiling and uncoiling; the width ranges from 1,210 to 2,150mm; compared with the traditional expansion shaft chuck, the machine has the advantages that the labor intensity in material replacement is reduced, the time of material replacement can be decreased, and the production can be performed at a high speed.

The embodiment of the invention discloses a cleaning device and a cleaning robot. The cleaning device comprises a recycling device, a spraying washing device, an adjusting device and a limiting device; the recycling device is connected to the work face in a sealed manner; the spraying washing device is installed on the inner side of the recycling device; the adjusting device is movably connected with the recycling device through an adjusting connection piece; the recycling device can perform the rotational movement around the adjusting connection piece relative to the adjusting device; and thelimiting device is installed on the outer side of the recycling device, and used for controlling the movement amplitude of the recycling device. According to the cleaning device and the cleaning robot, due to the fact that the limiting device is arranged on the cleaning device, the movement amplitude of the control device can be effectively controlled, and then the safety of the cleaning device is guaranteed.

The invention discloses a rapid contrast adjusting mechanism. The rapid contrast adjusting mechanism comprises a base plate, a first light blocking sheet and a second light blocking sheet. The base plate is provided with three base plate axle holes in the same straight line. A crescent base plate limiting groove is formed between every two adjacent base plate shaft holes. A transmission shaft of a transmission gear penetrates through the base plate axle hole in the middle and then is connected with one end of a compression spring, and the other end of the compression spring is connected with a control frame. The transmission gear is connected with a motor. A light blocking sheet center shaft and a light blocking sheet limiting shaft are arranged at the lower portion of the first light blocking sheet, a light blocking sheet center shaft and a light blocking sheet limiting shaft are arranged at the lower portion of the second light blocking sheet, the light blocking sheet center shafts penetrate through the base plate axle holes in the edges respectively, the light blocking sheet limiting shafts penetrate through the base plate limiting grooves, the two light blocking sheet center shafts are connected with a second return spring and a third return spring respectively after penetrating through the base plate, and the other end of the second return spring and the other end of the third return spring are fixed to the base plate.

The invention relates to the technical field of automobile suspensions, and discloses a double-fork-arm suspension which comprises a steering knuckle, a first fork arm, a second fork arm and a linkage assembly. The first fork arm comprises a first fork arm body and a first connecting part arranged on the first fork arm body, and one end of the first fork arm body is connected with the upper end of the steering knuckle; the second fork arm comprises a second fork arm body and a second connecting part arranged on the second fork arm body, the second connecting part corresponds to the first connecting part, and one end of the second fork arm body is connected with the lower end of the steering knuckle; one end of the linkage assembly is connected with the first connecting part, and the other end of the linkage assembly is connected with the second connecting part. According to the invention, the rigidity of the suspension in the X-axis direction is reduced without reducing or even improving the backward tilting towing torque rigidity, so that the performance of the whole vehicle is improved, and the linear braking stability and the curve braking safety are ensured.

The invention relates to the technical field of pipeline hangers, in particular to an in-service rigid hanger load measurement method. The method comprises the following steps: the hanging rod of therigid hanger is simplified to simply supported beams at two ends; assuming the axial tension borne by the hanging rod is T0, a transverse shear force F is applied to the midpoint of the hanging rod, the hanging rod is bent and deformed under the joint action of the T0 and the F, the deflection curve equation of the hanging rod after deformation is represented by w(x), the deflection of any point on the hanging rod is obtained, the deflection corresponding to the midpoint of the hanging rod is obtained, the influences of the axial tension T0 on bending and deformation of the hanging rod are quantized, a corresponding influence factor is deduced, the axial tension T0 of the hanging rod is deduced backwardly through measuring the transverse shear force F and the deflection at the action point, and the T0 is the rigid hanger load which needs to be measured. The method is simple and easy to operate, the measurement precision is high enough, in-service measurement can be realized, and the pipeline is not influenced during the measurement process.