37 results about "Left curve" patented technology

An improved stand-up pouch and blank for constructing the same. The stand-up pouch comprises a front panel, a back panel, and a bottom gusset provide between the front panel and the back panel. The bottom side of each panel may comprise a left curved section and a right curved section. The front panel, back panel, and bottom gusset are sealed to one another such that the stand-up pouch is configured to move between a substantially flat state and a stand-up state. According to some aspects, the stand-up pouch is configured such that, when in the stand-up state, a portion of the pouch where the left curved sections of the bottom sides of each panel are sealed together and a portion of the pouch where the right curved sections of the bottom sides of each panel are sealed together do not contact a support surface, thus providing increased stability.

The invention discloses a crossway free-flowing type road structure and a traffic route thereof with urban traffic lights decontrolled, comprising the road structure and the traffic route. The invention is characterized in that: the ground traffic lanes which are adjacent and in opposite directions in the crossroad section are set as the straight traffic lanes in the direction, wherein a two-way straight viaduct which steps over the ground straight traffic lane of another intersected direction is set in the middle of one direction and is connected with the ground road in the direction. A motor vehicle left-face arcuate viaduct which takes the crossing centre axis of the crossroads as the circle center is set at the road intersection in all directions of the crossroads. Non-motor vehicles and pedestrian footbridges are arranged side by side on the lateral side of the motor vehicle left-face arcuate viaduct. The ground traffic lanes which are adjacent or in opposite directions in the crossroad section is set as the right curve, the left curve, the non-motor vehicle road and the sidewalk which are arranged successively towards the outside of the straight traffic lanes in all directions. The traffic routes within the section of the crossway free-flowing type road structure are set as follows: the straight moving vehicles travel on respective straight traffic lanes, the vehicles turning right travel on the right curve in all directions, the vehicles turning left travel along the right curve firstly, and travels along the right curve after passing through the left curve viaduct in the right direction, and then travels along the right curve after passing through the left curve viaduct in the opposite side to realize the left curve travelling by moving along the right curve.

The invention discloses a head support device for neurological surgery patients. The head support device comprises an operating table mounting surface. A cross movement device is arranged at the frontof the operating table mounting surface, a support device is arranged at the front of the cross movement device, a left fixing device is arranged on the left side of a position above the support device and comprises a mounting slide groove, a left slider, a left curved bar, a left slide groove, a left rotary slider, left threaded holes, a left ejector rod and a left turntable, the mounting slidegroove is formed in the middle of the upper surface of a mounting rod, the left slider is positioned in the mounting slide groove and is slidably connected with the mounting rod, the left curved bar is positioned on the upper side of the left slider and is fixedly connected with the upper surface of the left slider, the left slide groove is formed in the middle of the front surface of the left curved bar, the left rotary slider is positioned in the left slide groove and is slidably connected with the left curved bar, the left threaded holes are formed in the middles of the left side surface and the right side surface of the left rotary slider, the left ejector rod is nested in the left threaded holes and is rotationally connected with the left rotary slider, and the left turntable is positioned on the right side of the left ejector rod and is fixedly connected with the right surface of the left ejector rod. The head support device has the advantages of simple structure and high practicality.

Embodiments of the invention disclose a feature road section extraction method and system and a dangerous road section judging method and system. The extraction method comprises the following steps of: measuring a to-be-measured road by adoption of an inertia measurement instrument, so as to pose parameters, corresponding to each continuous sampling point of the to-be-measured road, acquired by the inertia measurement instrument, wherein a mounting surface of the inertia measurement instrument is parallel to a road surface of the to-be-measured road, and the pose parameters comprises a pitch angle and a course angle; determining shape parameters included by the to-be-measured road according to the pose parameters, wherein the shape parameters comprise a vertical curve radius and a horizontal curve radius; and extracting feature road sections included by the to-be-measured road according to the shape parameters of interval road sections included by the to-be-measured road, wherein the feature road sections comprise convex curve road sections, concave curve road sections, longitudinal slope road sections, left curve road sections, right curve road sections and straight road sections.The extraction method is relatively high in efficiency and has relatively good stability.

Disclosed is a double-shaft-end electric trencher. A double-shaft-end motor is arranged in the middle of the trencher, the left end of the double-shaft-end motor is fixed to a left supporting beam while the right end of the same is fixed to a right supporting beam, an upper eccentric shaft is fixed at an upper-end rotating shaft end of the double-shaft-end motor and hinged at the upper end of a right inclined pipe through an upper connecting rod, the middle of the right inclined pipe is hinged to the right supporting beam, the lower end of the right inclined pipe is fixed in the middle of a right curved pipe, a lower eccentric shaft is fixed at a lower-end rotating shaft end of the double-shaft-end motor and hinged to the middle of a left inclined pipe through a lower connecting rod, the upper end of the left inclined pipe is hinged to the left supporting beam, the lower end of the left inclined pipe is fixed in the middle of a left curved pipe, multiple drilling teeth are uniformly distributed on the left curved pipe and the right curved pipe respectively, and a slurry outgoing nozzle is arranged between each two drilling teeth. Earth excavation is realized by swinging the drilling teeth, punching and replacing are realized through high-pressure water jetting, and trenching efficiency is high.

The invention discloses a connecting rod type eagle claw climber. The invention adopts the following technical scheme: a connecting rod frame and a connecting rod track frame are respectively welded at the lower sides of the pedal plates of the climber; a left curved claw, a right curved claw, a left connecting rod, a right connecting rod and a crescent claw are correspondingly riveted and assembled by a pin shaft to be inserted into the connecting rod frame and the connecting rod track frame, and the left connecting rod and the right connecting rod are correspondingly riveted and connected on a circular hole of the connecting rod frame by the pin shaft; a left tension spring is hung on a spring hanging ring of the left connecting rod and a spring hanging ring in the middle of the connecting rod frame, and a right tension spring is hung on a spring hanging ring of the right connecting rod and the spring hanging ring in the middle of the connecting rod frame; and a protecting cover is arranged on each of all components. Thus, by using the crescent claw of the climber fastened on both feet to strike the rod body with a slight force, under the action of the connecting rods, the left curved claw and the right curved claw encircle the rod body at the same time, so that three positions at different heights are buckled stably and firmly. The climber disclosed by the invention has the advantages of simple structure, good non-skid property and good anti-falling stability, can be operated and used flexibly and freely, can automatically extend and shrink to fasten rod bodies with various thicknesses, and can be used as an updated climbing tool for replacing the existing pole climber which has the defects that the caliber needs to be adjusted by pushing and pulling a moving rod by hand and the like.

The invention relates to a gunsight which comprises a front sight and a rear sight that are arranged on a gun. The gunsight is characterized in that the front sight is provided with a field lens used for aiming and shooting, the field lens is symmetrically provided with a left curve sign and a right curve sign along the direction vertical to a gun barrel, a clearance used for aiming is formed between the left curve sign and the right curve sign; a curve marked on the left curve sign meets the following condition on a coordinate axis: X is equal to minus fb/a, Y is equal to f (h1+h2)/2; a curvemarked on the right curve sign meets the following condition on the coordinate axis: X is equal to fb/a, Y is equal to f (h1+h2)/2, wherein h2 expresses alignment height, b expresses mean value of widths of special shooting target, a expresses the distance from the front sight to the special target, f expresses the focus of the field lens, h1 expresses the corresponding trajectory altitude valueof a special gun to shoot the special target from different distances a. The invention aims at providing the gunsight which can rapidly aim and has simple structure.

A neck massager with a pain relief function comprises a left curved bar and a right curved bar, wherein the left curved bar and the right curved bar are fixedly connected with support bars on their inner surfaces, the two supporting rods are fixedly connected with a motor box on one side opposite to the left-curved rod and the right-curved rod, the inner surface of the motor box is fixedly connected with a motor, and the other side of the supporting rod is fixedly connected with a gearbox. The invention relates to the technical field of medical auxiliary equipment. According to the neck massager, through arrangement of the left curved bar, right curved lever, motor, first rotating column, first bevel gear, the second rotating column, the second bevel gear, the third rotating column and thethird bevel gear , the massage roller can massage the user according to different directions, which is comfortable, interesting and convenient to control, and the massager solves the problem that themassage mode of the existing neck massage device is single, and the user can not freely adjust and control, thus causing the user to have irritable mood.

The invention discloses a municipal road foundation pit safety protection device, which comprises a support box, a motor base is fixedly connected to the right side inside the support box, a motor is fixedly connected above the motor base, and a lead screw is fixedly connected to the output end of the motor. The center of the bottom of the supporting box is fixedly connected with a bearing seat, the upper part of the bearing seat is rotatably connected with a longitudinal rotating shaft, the middle part of the longitudinal rotating shaft is fixedly connected with a driven gear, the driven gear meshes with the lead screw, and the longitudinal rotating shaft passes through the supporting box and is connected with a A crankshaft, the crankshaft includes a number of right cranks and left cranks, the right cranks and left cranks are alternately connected, and the right sides of the right cranks are connected with first connecting rods in rotation. Compared with the prior art, the beneficial effects of the present invention are: the present invention is simple in structure and easy to use, and the reciprocating movement makes the warning effect better when performing the warning function, and is easier to be noticed by passers-by. Sometimes it can also be used as a ladder, which is convenient to use and worthy of popularization.

The invention discloses a smooth type cross road in cities. The smooth type cross road is characterized in that a left curved side lane is arranged on the outer side of a left curved lane on the ground of a straight high-level bridge, and the front end of the left curved side lane is connected with a left curved lane along the road; the entrance end and the exit end of a motor-vehicle left curved high-level bridge in the opposite directions of the arc shape and an arc opening of a bridge main body are respectively provided with an inner branch bridge section and an outer branch bridge section, and the tail ends of all branch bridge sections are respectively set as slope openings which are connected with the corresponding ground roads in sequence; an inner branch bridge section slope opening in the entrance direction of the left curved high-level bridge is connected with the left curved lane in the cross road section, and an outer branch bridge section slope opening is connected with an arc of a left curved lane in the adjacent direction in the cross road section; and a slope opening of the inner branch bridge section in the exit direction of the left curved high-level bridge is connected with the left curved side lane in the cross road section and passes through under the entrance branch bridge section of the opposite left curved bridge, and an outer branch bridge section slope opening is connected with an arc of the left curved lane in the adjacent direction in the cross road section. According to the smooth type cross road in the cities, the structure is simple and the passing route is intuitive and clear.

The invention relates to a curved pipe press-fitting welding auxiliary device. The curved pipe press-fitting welding auxiliary device comprises a curved pipe auxiliary fixing device installing plate,a left curved pipe auxiliary fixing device, a right curved pipe auxiliary fixing device and a swing rod installing seat, wherein the left curved pipe auxiliary fixing device and the right curved pipeauxiliary fixing device are symmetrically installed on the left side and the right side of the curved pipe auxiliary fixing device installing plate, and the swing rod installing seat is installed at the middle section of the upper portion of the front side face of the curved pipe auxiliary fixing device installing plate. The invention further discloses a method for conducting press-fitting weldingof curved pipes through the curved pipe press-fitting welding auxiliary device. The curved pipe press-fitting welding auxiliary device and the curved pipe press-fitting welding auxiliary method havethe beneficial effects that the output force of the curved pipe press-fitting welding auxiliary device is large, maintenance is simple, the performance cost ratio is high, and the curved pipe press-fitting welding auxiliary device is suitable for short-distance press-fitting work with a short press-fitting force stroke, replaces workers to conduct the work of press-fitting of two curved pipes located on the same circle, is high in efficiency, good in installation parallelism, and high in assembling accuracy.

The invention relates to a traffic regulating facility used at a crossroad and a traffic rule. A left curve is arranged at the left side of a right curve; a transition way for a car to turn left close to the right is additionally arranged between a straight going way and the left curve. The car to turn left drives to the transition way firstly, and then passes through a running-through way arranged on the straight-going way to enter into a normal way by utilizing the waiting period that the car parks on the straight-going way. In the traffic rule, the car to run straightly along the opposite direction and the car to turn left along the cross direction can run at the same time without mutual interference.

The invention provides a deceleration strip capable of achieving clear punishment on different vehicle speeds. The upper end and the lower end of the cross section of the deceleration strip are provided with horizontal straight lines, and the two sides of the cross section are provided with a left curve and a right curve which are symmetrical; each curve is composed of a first cosine curve section (1) and a second cosine curve section (2), the first cosine curve section (1) is tangent to the lower-end horizontal straight line, the second cosine curve section (2) is tangent to the upper-end horizontal straight line, and the first cosine curve section (1) is tangent to the second cosine curve section (2). The deceleration strip has the advantages that strong bumping vibration punishment is applied to high-speed vehicles, the higher the vehicle speed is, the higher the punishment intensity is, and therefore a driver is reminded to learn a lesson and dares not to overspeed next time; low-speed vehicles can flatly drive through, and the riding comfort of the driver and passengers is better; the condition that an existing deceleration strip uniformly generates boring vehicle jumping bump and vibration impact no matter the vehicle speed is high or low is changed, induced noise is low, and the service life of vehicle parts and the deceleration strip is prolonged.

A traffic light luminaire includes at least one light source, a collimating device for collimating light emitted by the at least one light source, and a light distribution device for spreading the collimated light within a specific solid angle with a specific luminous intensity distribution. The light source is a high brightness light source, and the light distribution device is a microstructured distributor having a micro-structured surface, wherein each equal-sized macroscopic section of the microstructured distributor contributes to the luminous intensity distribution in the same way within said whole specified solid angle. Thereby a low maintenance traffic light luminaire is provided which generates a homogeneous light distribution for a variety of trail arrangements (right curve, left curve, straight line) independent of the distance of the viewer.

The invention discloses a flowmeter based on engineering mechanics. The flowmeter comprises a flow detecting device and a data collecting system, one end of the data collecting system is connected with the flow detecting device, the flow detecting device comprises a middle straight pipe, a left curved pipe, a right curved pipe, an ultrasonic transducer A and an ultrasonic transducer B, he left curved pipe and the right curved pipe are respectively disposed at the left and right ends of the middle straight pipe, a connection head A is arranged at the joint between the left curved pipe and the left end of the middle straight pipe, a connection head B is arranged between the right curved pipe and the right end of the middle straight pipe, the ultrasonic transducer A and the ultrasonic transducer B are respectively disposed outside the connection head A and the connection head B, and the ultrasonic transducer A and the ultrasonic transducer B are arranged on the same horizontal line; the flowmeter solves the problem of refractive attenuation and beam offset of ultrasonic waves during propagation, achieves a high-precision and high-efficiency fluid measurement function, and ensures accurate and reliable measurement results.

A foldable bag (10) for a camera or the like is disclosed. The bag (10) comprises: (a) a foldable sheet material (12) forming into an upper section (30) and a lower section (40), having a T-shaped contour with a plurality of valley folds (20-26) formed thereon, said sheet material (12) having an inner side (40) and an outer side (50), wherein the inner side is provided with a plurality of pockets made; (b) a plurality of zippers (52,54) formed along the perimeter of the sheet material (12) allowing the foldable sheet (12) be zipped along the edge; (c) a left curving flap (32) and curving flap (34) being formed along the upper section of the foldable sheet material (12); and (d) a holding means (70) for holding the bag (10) while the bag (10) is being unfolded to contain camera and the accessories thereof.

The invention provides a space curved-surface conformal health pillow. Projections of the outer surface curved-surface of a pillow body on a section of a vertical plane and on a horizontal plane are compound curves which are formed by smoothly connecting multiple segments of curves, the front curve segments in the projection on the section of the vertical plane are arranged according to requirements for coinciding with the natural bending degree of the neck of the human body, the vertical middle curve segments are arranged according to requirements for naturally coinciding with the afterbrainportion of the human body, the horizontal middle curve segments are arranged according to requirements for coinciding with the outer surface of the horizontal plane parallel to the neck of the human body when a person sleeps on the back, and the left curve segments and the right curve segments are arranged according to the requirements that the heights of the left curve segments and the right curve segments to the horizontal plane are the vertical height from the side surface of the head to the outer side of the shoulder on the same side when the person lies on one side. Meanwhile, through cooperation of appropriate elasticity of a pillow interior and adjustment of a height adjustment device, the space curved-surface conformal health pillow adapts to the health requirements of specific users and has the advantages of improving efficiency, saving cost and improving health protection.

The invention discloses a normal projection method applied to battery piece black corner detection. The method specifically comprises the steps of eliminating other interferences and carrying out normal projection, wherein the step of eliminating other interferences comprises the following sub-steps of: D1) taking four corners at the ends; D2) projecting each corner into an image in a normal direction along 45 degrees or 135 degrees; D3) normalization: normalizing curves by using an effective pixel number as effective pixels in each normal direction are not completely the same; and D4) enabling the upper left curve and the upper right curve to go upward slowly from lower parts, and enabling the lower left curve and the lower right curve to be located at the upper parts without obvious laws. According to the method, contents of images can be reflected via normal projection.

The present invention relates to the partition board structure of closed compressor. After the upper dead point and the lower dead point, in which the partition board is contacted with guide board, are connected to the connection center, the right and the left curved surfaces have different length, the suction regions are longer than the exhaust regions, and if the upper dead point is 0 deg, the lower dead point the lower dead point is in 180-360 deg referring to the direction of the first and the second guide boards. The partition board may be formed to have different functions in the right and the left curved surfaces. The present invention is superior in that the suction region is longer than the exhaust region and this results in relatively long medium gas sucking time, increased medium sucking amount and raised compressor efficiency.

The present invention is one kind of luggage box for curved beam motorcycle, which includes one right curved beam frame, one left curved beam frame, one box body, one box cover and one lock. The luggage box for curved beam motorcycle features the box body between the right curved beam frame and the left curved beam frame, and the box cover with the back end connected movably to the box body and the front end provided with one lock. The luggage box for curved beam motorcycle can well meet the use requirement of the rider.