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 invention discloses a ceramic-based pyramid lattice structure type composite material preparation mold, which relates to a preparation mold and solves the problems that an existing ceramic-based pyramid lattice structure type composite material is not easy to form by one step, a prepared ceramic-based pyramid lattice structure type composite material panel is collapsed and uneven, a broach is not straight and the demolding is difficult. The preparation mold comprises a hollow frame, two trapezoid inserting strips, two press plates, two side plates and a plurality of triangular inserting strips, wherein two ends of the hollow frame are respectively provided with a first through hole with the trapezoid section along the width direction of a horizontal arm, the trapezoid inserting strips are inserted into and matched with the first through holes, the triangular inserting strips are inserted into and matched with second through holes, the two side plates, capable of covering the first and second through holes, are installed on the outer sides of two parallel vertical arms of the hollow frame, respectively, and the two press plates are embedded in an upper groove and a lower groove of the hollow frame, respectively. The preparation mold is used for preparing the Cf/SiC ceramic-based pyramid lattice structure type composite material.

The invention provides a locking device for a foldable draw gear, the foldable draw gear and a locking method of the foldable draw gear. The locking device is used for locking a front pull rod and a rear pull rod of the foldable draw gear in a straightened state. The locking device comprises a locking check block. A spring sleeve is hinged to the end portion of the end, far away from the rear pull rod, of the locking check block, and the spring sleeve is in a tube shape with one end being closed and the other end being open. The closed end of the spring sleeve is hinged to the locking check block, a spring shaft is sleeved with the other end of the spring sleeve, a transversal limiting unit is arranged at the other end of the spring shaft in a hinged mode and fixed to the two sides of the front pull rod, and the spring shaft (5) can rotate around the transversal limiting unit. The spring shaft (5) and the spring sleeve (4) are sleeved with a spring (6) capable of keeping the locked state of the front pull rod and the rear pull rod. The locking device solves the problem that a locking device in the prior art occupies too much space.

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.

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 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 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 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 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.