120results about How to "Keep straight" patented technology

The invention discloses a proportional electromagnetic valve for an electrically controlled high-pressure common-rail fuel injection system of a diesel engine and relates to an electromagnetic valve. A position at which a fixed iron core (8) and a movable iron core (3) of the electromagnetic valve attract each other is a conical polar plane. The fixed iron core (8), the movable iron core (3), a guide pipe (18), a spiral spring (15), an electromagnetic coil (4), a square iron core (19), a shell (14) and a valve body (1) jointly form the electromagnetic valve in an assembling way. When driving current is input into the electromagnetic coil, a magnetic field is generated through a magnetic path in the valve, electromagnetic force with magnitude which is in proportion with the magnitude of the driving current and is not related to a stroke is generated relative to the movable iron core, the movable iron core is enabled to overcome spring force to move, the movable iron core stops moving at a balance point of the two kinds of force and therefore is kept at a stable position, and the movable iron core can proportionally and continuously move according to the magnitude of the driving current to control the opening of the valve. Under complex working conditions under which the diesel engine works, the electromagnetic valve not only can stably control the on / off of a fuel path, but also can accurately and proportionally control the flow of the fuel path according to the driving current.

An electrostatic fluid accelerator includes an electrode array including an array of corona discharge electrodes and an array of accelerating electrodes. A detector is configured to sense a constituent component of the fluid as present in an output from the electrode array. A control circuit supplies power to the electrode array, the control circuit being responsive to an output from the detector for operating the electrode array responsive a level of the constituent component.

The present invention provides a curtain plate type rolling shutter, capable of quickly processing open-close action to the decreasing mobile force application, and capable of easing the pressing against fault when the grounding part presses against the jointing object. The invention relates to the improvement of the curtain plate type rolling shutter, characterized in that the grounding part setting of the curtain plate has flexible core material having flexibility and processing elasticity deformation, the upper of the flexible core material partitioning a pressing against buffer interval shorter than the core material configuration is parallelly mounted with a counterweight core material approximately which is more weight than the flexible core material and having rigidity. And the whole length of the counterweight core material is shorter than the core material inserting in and supporting the groove and the flexible core material, the two ends of the curtain plate of the two sides of the counterweight core material of the curtain plate is provided with a side part having flexibility and supporting width of the core material, the side part in inserted in the groove to liftedly support and guide.

The invention discloses a protein encoded by a rice leaf-shaped regulatory gene NRL1, which has an amino acid sequence shown in SEQ ID NO:2. The invention also discloses a gene for encoding the protein, which has a nucleotide sequence shown in SEQ ID NO:1. The rice leaf-shaped regulatory gene NRL1 can be used for improving the width or the crimpness of rice leaves.

A bicycle transmission system is provided herein. The bicycle transmission system includes a sprocket or ring that is capable of sliding amongst an infinite number of lateral positions relative to a crank arm. The movement of the sprocket or ring facilitates an optimal chain path from the sprocket or ring to another sprocket or ring in the transmission system and, therefore, increases the efficiency with which power is transferred through the system.

The invention discloses a vertebral column auxiliary rehabilitation device which comprises a tank. A chair plate which is horizontally arranged is fixed onto the tank, a telescopic rod which is arranged along the vertical direction is further fixed onto the tank, a transverse rod mechanism is arranged on the top of the telescopic rod and at least comprises a hook, a wire spool is further fixed to the surface of the telescopic rod, one end of a guy wire is wound on the wire spool, and the other end of the guy wire penetrates the hook and is connected with a head fixing device; a back plate is further fixed onto the chair plate, a slide rail which is horizontally arranged is fixed onto the back plate, slide bars are slidably arranged on the slide rail, and a stopping plate is fixed to an end of each slide bar; a plurality of massage mechanisms are further fixed onto a surface of the back plate. The vertebral column auxiliary rehabilitation device has the advantages that the problems that ordinary vertebral column rehabilitation devices are not suitable to be used for a long time and the backs of patients are vulnerable to aching pain if the patients use the ordinary vertebral column rehabilitation devices for a long time can be solved; the vertebral column auxiliary rehabilitation device has back meridian and collateral massage functions, and accordingly rehabilitation of vertebral columns can be accelerated.

The invention discloses a full-automatic method for processing leaf-removed needle bud-shaped tea and belongs to the technical field of tea processing. The method comprises the following steps: tedding fresh leaves, deactivating enzyme, roasting, blowing tea pieces through a winnowing machine, performing primary softening treatment, tidying tea strips with hands, performing secondary softening treatment, performing secondary tea strip tidying treatment with hands, performing third-time softening treatment and roasting. The accurately controlled fresh leaves are tedded so as to obtain the most suitable fresh leaf enzyme-deactivated moisture content, the activity of fresh leaf enzymes is deactivated by contacting a heat-conducting roller for deactivation of enzymes, the moisture content of leaves needing to be removed in the fresh tea leaves is lower than the moisture content of buds needing to be preserved, the tea leaves immediately enter a needle-shaped tea roasting machine, the leaves needing to be removed are broken under the conditions of specific time, pressure and temperature and are blown by air, and the buds need to be kept perfectly; due to the dampening, softening and strip making process twice, straightness of tea buds can be preserved; and finally, due to roasting of a roasting unit, aroma of the tea leaves is generated, and the needed moisture content for refreshing the tea leaves is achieved.

The invention discloses an elastic and extrusion-resistant power cable. A first elastic tube is arranged in the center of the power cable, multiple first conductors are evenly arrayed outside the first elastic tube, and long shafts of the first conductors are placed in the radial direction of the power cable. The first conductors are wrapped with an inner flame retardant tape winding-wrapping layer, multiple second conductors are evenly arrayed outside the inner flame retardant tape winding-wrapping layer, short shafts of the second conductors are placed in the radial direction of the power cable, multiple second elastic tubes are sequentially arranged between every two adjacent second conductors, and the second conductors are sequentially wrapped with an outer flame retardant tape winding-wrapping layer and an outer protective sleeve layer. According to the power cable, the first elastic tube and the second elastic tubes are adopted for protecting the first conductors and the second conductors, the power cable is excellent in elasticity and extrusion-resistant performance, and when extruded, the power cable buffers extrusion through elastic deformation, so that service life of the power cable is prolonged in a complex working environment.

The invention discloses a turning plate sorting machine, a turning plate sorting system, a sorting method of the turning plate sorting machine and a supporting guide rail. The turning plate sorting machine is characterized in that a guide wheel is arranged on a transmission belt of a turning plate sorting trolley, and a guide groove, left sorting driving grooves, right sorting driving grooves, left straightening guide grooves and right straightening guide grooves are formed in the supporting guide rail; and a route switching block is arranged at the connecting position of the left sorting driving grooves and the guide groove and the connecting position of the right sorting driving grooves and the guide groove to switch the moving route of the guide wheel, when the guide wheel is located inthe guide groove in a carrying table, the carrying table can be effectively kept in a straightened state, and the situation that the carrying table is driven to deflect due to the weight of an objectis avoided. The requirements for conveying and sorting objects of various weights can be effectively met, and sorting is guaranteed to be achieved.

The invention discloses a multicore composite shield cable. The multicore composite shield cable comprises a central unshielded conductor, internal shield conductors, internal unshielded conductors and external shield wires. The central unshielded conductor is located at the center of the cable. The multiple internal shield conductors are evenly distributed outside the central unshielded conductor, and the long axes of the internal shield conductors are distributed in the radial direction of the cable. The multiple internal unshielded conductors are sequentially arranged between any two adjacent internal shield conductors and are located on the same circumference. The multiple external shield wires are evenly distributed outside a flame retarding taped covering layer. An elastic non-woven fabric taped covering layer and an outer sheath layer are sequentially wrapped on the external shield wires. According to the multicore composite shield cable, since the multiple internal unshielded conductors are arranged between any two adjacent internal shield conductors, filling of gap padding is reduced, and the roundness of the cable is guaranteed; meanwhile, the unshielded conductors are encircled by the shield conductors and the shield wires, so the requirement for shielding the unshielded conductors is met, shield layers and filling materials are reduced, and the production cost is reduced.

The invention proposes a power cable for new energy vehicles, which includes an elastic skeleton, a plurality of first cable cores and a plurality of second cable cores; sleeve, shielding layer, and outer sheath; multiple first cable cores are arranged parallel to each other between the elastic skeleton and the refractory layer, and the multiple first cable cores are evenly distributed around the elastic skeleton as the center, and the multiple first cable cores The core is against the elastic skeleton and the refractory layer; the number of the second core is the same as the number of the first core, and there is a second core against it between any two adjacent first cores , a plurality of second cable cores abut against the elastic skeleton and the refractory layer. The present invention supports the first cable core and the second cable core by setting an elastic skeleton at the center of the cable. When the cable is extruded, the elastic deformation of the elastic skeleton can buffer the extrusion force, avoiding the first cable core and the second cable core. crushed and destroyed.

The invention proposes an anti-extruding stretch-proof power cable, and the cable comprises a first elastic tube, a second elastic tube, a plurality of first conductors, and a plurality of second conductors. The first elastic tube is disposed at an inner side of the second elastic tube, and the plurality of first conductors are disposed in the first elastic tube in a parallel manner. The second conductors have the elliptical sections, and the short axis of each second conductor is set in the radial direction of the cable. Two ends of each second conductor in each arc-shaped elastic part in the long-axis direction respectively abut against the arc-shaped elastic parts. Moreover, the plurality of second conductors abut against the outer wall of the first elastic tube. The first elastic tube and the second elastic tube are employed for respectively protecting the first conductors and the second conductors, and the interior of the first elastic tube and the interior of the second elastic tube are filled with gas. When the cable is extruded, the extruding force can be buffered through the elastic deformation of the first and second elastic tubes, thereby protecting the first and second conductors from being damaged by extruding, improving the application performance of the cable in a severe environment, and prolonging the service life of the cable.

The invention relates to the field of clothing care machines, in particular to a clothing care machine with a movable drying function. The clothing care machine comprises a supporting rack and a drying machine which is arranged at the upper end of the supporting rack, and the drying machine blows air downwards to dry clothing under the drying machine; the drying machine comprises a machine hood, ablower, a heating device and a driving mechanism. The driving mechanism drives the blower to do reciprocating translation movement in the machine hood; a clearance hole is formed in the bottom of themachine hood so as to avoid the air flow which the blower blows downwards; the heating device is fixedly arranged at the air inlet end or an air outlet of the blower. By means of the clothing care machine, it is avoided that hot air is blown to the same position of clothing all the time, it is avoided that the clothing is deformed even damaged due to long-time heating, in the moving process of the blower, after the hot air leaves, part heat of the clothing can be dispersed into air, and the protection effect on the clothing is achieved.

The invention relates to the technical field of a wire, and discloses an auxiliary mechanism for wire winding tension adjustment. The auxiliary mechanism comprises a supporting rod, a driving machineis arranged on the side face of the supporting rod, and a bevel gear set is arranged on the surface of the driving machine. A rotation shaft is arranged in the bevel gear set, and a winding coil is arranged on the surface of the rotation shaft. A connecting rod is arranged on the surface of the supporting rod, and a guide block is arranged on the surface of the connecting rod. A sliding rod is arranged in the guide block, and a sliding block is arranged on the surface of the sliding rod. By the match usage of the sliding block and an auxiliary spring, the match usage of a sliding needle and aresistance coil, the match usage of an electromagnet and a magnetic block and the match usage of a brake pad and an abrasive disc, the auxiliary mechanism for wire winding tension adjustment can automatically adjust the winding speed of the winding coil and reduce the tension of the wire when the wire has too much tension, so that the winding coil cannot affect the quality of the wire during winding, and the wire winding quality and effect are improved.

The invention discloses a leveling keel and a leveling framework. The leveling keel comprises a vertical keel and leveling assemblies. A plurality of mounting holes are formed in the vertical keel; the leveling assemblies are mounted in corresponding positions of the mounting holes; each leveling assembly comprises a supporting seat and a leveling screw, the supporting seat is detachably connectedto the vertical keel, a first through hole is formed in the supporting seat, and the first through holes are formed opposite to the mounting holes; a plurality of first thread sections which are spaced circumferentially and distributed uniformly are arranged on the inner wall of the first through hole, and a leveling prompting part is arranged between adjacent two first thread sections; a secondthrough hole is formed in the leveling screw, and a plurality of second thread sections which are spaced circumferentially and distributed uniformly and are matched with the first thread sections arearranged on the outer wall of the leveling screw; the leveling screw can move along with the first through hole, and the end surface of the end, in the first through hole, of the leveling screw is aligned with the leveling prompting part. The invention provides the leveling keel and the leveling framework to align a wall.

The invention belongs to the technical field of bridge engineering, and relates to a positioning control method for discontinuous multi-beam concentric pre-buried pipelines. The method comprises the following steps of measuring a center point of a hole channel of an anchor end of an external cable, and measuring and installing the position of the pre-buried pipeline in an arch capping beam when structural steel of the arch capping beam is installed and before a template is installed; erecting a laser pointing instrument in a beam box chamber at one end of the hole channel in order to pass through the center positions of anchoring points of cross beams at two ends, wherein a projection position of a laser beam passing through each cross beam is a position of a to-be-installed pre-buried hole channel steel tube; manufacturing a circle center target for receiving a laser projection point at a laser beam position for installing the pre-buried pipeline of each capping beam; and after all preformed hole channel steel tubes of each anchor cable are adjusted and reach the standard after re-inspection, carrying out positioning welding and template positioning. According to the method, the disturbance to the pipeline position is avoided during fixation, the deviation and dislocation are avoided, the centering effect is rechecked when necessary, and then fine adjustment and welding fixation are carried out; and the method is simple in process, economical, applicable, safe and reliable.

The invention discloses a grooving device for a cement concrete road pavement for highway engineering. The grooving device comprises an outer casing, a drive shaft, a dustproof cover, a bottom plate,a back wheel, a drive box, a connecting plate, a push rod, a rotary disc, a rocking handle, a steering shaft, a fixed plate, a fixed rod, a pedal plate, a first motor, a drive gear, a chain, a steering wheel, a first rotary shaft, a drive gear, a lifting plate, a drive belt wheel, a piston, a hydraulic cylinder, a steering joint, a saw disc, a fixed disc, a transition gear, a support rod, a rectangular box, a blocking plate, a compression spring, a second motor and a drive belt wheel, wherein the outer casing is arranged at the left side of the top part of the bottom plate; the drive box is arranged at the right side of the outer casing; a hydraulic cylinder is fixedly arranged at the left side of the bottom surface of the interior of the outer casing; the piston is arranged in the hydraulic cylinder; the lifting plate is fixedly welded under the piston; the first rotary shaft is arranged at the bottom part of the lifting plate. The grooving device has the advantages that the groovingdepth can be adjusted, and the straightness of the grooving line is guaranteed.

The invention provides a twisting-resisting and anti-deformation power cable. The power cable comprises a center conductor, multiple outer conductors and an elastic protective tube, wherein multiple outer conductors are longitudinally arranged at the outside of the center conductor in parallel, and two ends of any outer conductor are respectively contacted with the center conductor and the elastic protective tube; an inner sheath, a total shielding layer and an outer sheath are orderly covered out of the elastic protective tube; the elastic bracket with the number same as the number of the outer conductor is arranged between the elastic protective tube and the inner sheath, and one elastic bracket is arranged between any two adjacent outer conductors; one end of the elastic bracket is connected with the inner wall of the inner sheath, and the other end of the elastic bracket is connected with the elastic protective tube and the elastic protective tube is pressed between any two adjacent outer conductors; and the elastic buffer material is filled in a gap between the elastic protective tube and the inner sheath. The cable provided by the invention can buffer the extrusion force through the elastic deformation of the elastic protective tube, the elastic brackets and the elastic buffer material in the extrusion, thereby preventing the center conductor and the outer conductors from being damaged by extrusion, and the use performance of the cable is improved.

The invention relates to a dismounting-welding integrated hot wind head comprising a fixed seat, a sucker rod, a main shaft, an air cover, a hot air pipe and a cold air pipe, wherein the main shaft comprises a hollow shaft rod and a connecting disc positioned at the lower part of the shaft rod, the shaft rod of the main shaft is rotationally installed in the fixed seat, the air cover is fixedly arranged below the connecting disc, the hot air pipe and the cold air pipe are installed on the connecting disc, and air passages of outlets of the hot air pipe and the cold air pipe are communicated with an air chamber on the air cover; and the sucker rod is installed in an inner hole of the shaft rod of the main shaft and synchronously rotates with the shaft rod of the main shaft, and the outer wall of the sucker rod is matched with the inner hole of the shaft rod in a sliding mode. The dismounting-welding integrated hot wind head is mainly used for automatically assembling, producing and repairing circuit boards. Compared with the prior art, the dismounting-welding integrated hot wind head has the advantages of convenient temperature control, good welding quality, high production efficiency and long service life.

The invention discloses a tensioning device for an end beam of a crane. The tensioning device comprises a support frame, a bidirectional screw rod, a left clamp block and a right clamp block, wherein the bidirectional screw rod is provided with a left threaded section and a right threaded section, and the thread direction of the left threaded section is opposite to that of the right threaded section; two ends of the bidirectional screw rod are respectively supported on the support frame; the left clamp block and the right clamp block are respectively screwed on the left threaded section and right threaded section of the bidirectional screw rod; the left clamp block and the right clamp block are circumferentially limited by the support frame; the left clamp block and the right clamp block move close to or away from each other when being driven by the clockwise rotation or anticlockwise rotation of the bidirectional screw rod; clamping parts for being clamped on side plates of the end beam of the crane are arranged on the left clamp block and the right clamp block; a connecting head for connecting the driving device is arranged at one end of the bidirectional screw rod. By utilizing the tensioning device, the interval between the two side plates of the end beam of the crane can be accurately regulated, the time and the labor are saved, and no noise is generated.

Disclosed are scissors for preventing crooked cutting of cloth, which relates to scissors, in particular to scissors for preventing crooked cutting of cloth. It includes an infrared lamp (1), a fixing nut (2) and a main handle (3); the top protruding position of the main handle (3) of the infrared lamp (1), and the fixing nut (2) is locked between the infrared lamp (1) and the The junction of the main handle (3). It cuts standard straight seams without drawing lines when cutting fabric and paper.

The invention provides a wall building machine for a building. The wall building machine for the building comprises a sliding box, a sliding rail, first fixing plates, a first sliding plate, ascendingand descending mechanisms, a reciprocating mechanism and a feeding mechanism, wherein the sliding rail is fixedly arranged at one side of the sliding box; the two first fixing plates are fixedly arranged at the side, near the sliding rail, of the sliding box; one side of the first sliding plate is fixedly connected with the sides, far away from the sliding box, of the two first fixing plates; oneside of the first sliding plate is glidingly connected with the sliding rail; the two ascending and descending mechanisms are fixedly arranged at the side, near the sliding rail, of the sliding box;the reciprocating mechanism is in threaded connection with the ascending and descending mechanisms; and the feeding mechanism is glidingly connected with the side, far away from the sliding rail, of the reciprocating mechanism. The sliding rail is fixed; a walking building type wall building method is used, and a wall body is enabled to be tidy and straight in the wall building process; the feeding mechanism is used for replacing a manual brick conveying process, so that the labor intensity of workers is reduced, and the wall building efficiency is improved; and the wall building machine for the building is simple in structure and low in production cost.

The invention discloses a vehicle wheel hub packaging cover. The packaging cover comprises a cover body, the cover body comprises four side walls and a top wall, the cover body comprises an outer side plastic layer, an inner side non-woven fabric layer and a middle anti-collision cotton layer which are arranged in an overlapped manner, the anti-collision cotton layer comprises two gauze element layers and a plurality of square foaming plastics clamped between the two gauze element layers, and fixing blocks used for fixing the two gauze element layers are arranged on the outer sides of the four corners of each piece of square foaming plastic. By the adoption of the technical scheme, when the aluminum alloy wheel hub packaging waterproof cover is used, the cover directly covers a hub, the waterproof effect is achieved, the anti-collision effect is achieved, meanwhile, a plurality of cylindrical metal strips which are arranged in parallel are fixedly arranged between the outer side plastic layer and the anti-collision cotton layer, strength of the cover body can be improved, the cover body cannot deform after small impact, and the cover body is kept straight and upright all the time.

The invention relates to the technical field of bridges, particularly relates to a bridge. The bridge comprises at least two bases and a plurality of fixing pieces, the adjacent bases are connected through the fixing pieces; each fixing piece comprises a connecting end and a fixing end; the connecting ends and the fixing ends are respectively arranged on the adjacent bases; a bending part is arranged between every two adjacent bases; the bending part comprises a plurality of connecting pieces and telescopic brackets; the adjacent connecting pieces of the telescopic brackets are rotationally connected through the telescopic brackets; the telescopic brackets at the head end and the tail end are detachably arranged on the adjacent bases respectively, the multiple connecting pieces are attached to one another under the condition that the connecting ends and the fixed ends are connected, and movable gaps are formed between the adjacent connecting pieces under the condition that the connecting ends and the fixed ends are not connected. By arranging the multiple connecting pieces, the bridge can be freely bent without additionally arranging bending pieces, and the stability of the bridgewhen the bridge is used as a straight line is guaranteed through the arrangement of the fixing pieces.

The invention provides a disposable vertebral balloon type cervical dilator comprising a deepened and extended main channel pipe, wherein a suction hole is formed in the drainage end of the deepened and extended main channel pipe; the deepened and extended main channel pipe comprises a water and gas injection channel, a local anesthesia drug channel and a straight operating channel; a water and gas injection sealing balloon injection outlet is formed in the top of the water and gas injection channel; the bottom of the water and gas injection channel is communicated with a water and gas injection inlet; a water and gas injection sealing balloon is arranged outside the water and gas injection sealing balloon injection outlet; a front end local anesthesia drug outlet is formed in the top of the local anesthesia drug channel and is located between the suction hole and the top of the water and gas injection sealing balloon; and a local anesthesia drug inlet is formed in the bottom of the local anesthesia drug channel. By using the disposable vertebral balloon type cervical dilator, the dilating process can be finished at one step in the local anesthesia drug administration process, the pain of a patient can be relieved, cervical laceration can be avoided, secretions can be sucked through negative-pressure suction while cervical dilating, and infection is not easily caused.