15results about How to "No bending" patented technology

The utility model discloses an extrusion die for copper bar production, which belongs to the technical field of extrusion dies and is characterized in that one end of an extrusion die body is fixedly connected with a mounting plate, the surface of the mounting plate is provided with mounting holes which are annularly distributed at equal intervals, one end of the extrusion die body is provided with a die hole, and one end of the die hole is provided with a working tape; according to the extrusion die for copper bar production, a flow guide nozzle can be additionally arranged at the discharging end of the extrusion die body through the connecting part arranged on the extrusion die body, and the stroke of a working belt is increased through a flow guide hole, so that the copper bar subjected to extrusion molding cannot be bent and wavy; and the flow guide coating is arranged on the inner wall of the die hole, the flow guide coating is a DLC coating, the hardness of the inner wall of the die hole can be greatly improved, meanwhile, the friction coefficient of the inner wall of the die hole is extremely low, deformation, abrasion and metal filing remaining of the die hole are avoided, and then the surface of the copper rod is prevented from being scratched and bruised.

This application belongs to the field of workpiece processing, specifically an inner circumferential surface grinding device, including a grinding mechanism, a cylindrical workpiece rotation mechanism, and a cylindrical workpiece fixing mechanism. The cylindrical workpiece rotation mechanism is located on the lower side within the stroke range of the grinding mechanism, and there is a preset distance between the cylindrical workpiece rotation mechanism and the grinding mechanism. The cylindrical workpiece fixing mechanism is located above the cylindrical workpiece rotation mechanism, and there is a preset distance between the cylindrical workpiece fixing mechanism and the cylindrical workpiece rotation mechanism. The grinding mechanism includes a motor, a left support plate, a right support plate, a rotating rod, a mounting wheel, a grinding wheel, an electric push rod, and a right-side support assembly. This application uses a rotating rod and a mounting wheel to support the inner side of the grinding wheel, and the left support plate, right support plate, left support plate, and right support plate limit the height of the fixing component, thereby ensuring that the supporting component supporting the grinding block will not bend during the grinding process, achieving a stable grinding effect.

The present application relates to the technical field of cardiac pacing electrode, in particular to a telescopic cardiac pacing electrode, which comprises a pulse pacemaker and an electrode lead, the electrode lead comprises an insertion end, a connecting sleeve, a conductive core wire and an electrode end, the insertion end, the connecting sleeve and the electrode end are sequentially fixedly connected, the insertion end is insertedly matched with the pulse pacemaker, the connecting sleeve is internally provided with the conductive core wire, the two ends of the conductive core wire are respectively connected with the insertion end and the electrode end, and the pulse pacemaker generates a pulse electric signal which is transmitted to the inside of an organ through the electrode end; in the present application, the telescopic members and the fixing members are staggered in the subcutaneous section, the initial length is the shortest, the spacing of the fixing members anchored in the subcutaneous tissue is increased with the growth of the patient's trunk, the telescopic members are axially stretched, the length adjustment range covers the entire growth period from childhood to adulthood, the risk of electrode lead tightness, electrode displacement or breakage is fundamentally eliminated, and secondary surgery is avoided.

The utility model belongs to the technical field of excavators, and particularly relates to an oil cylinder limiting and protecting cover for an excavator accessory, which comprises a clamping jaw support, a clamping jaw seat arranged on the clamping jaw support and a protecting and limiting component arranged on the clamping jaw support. A hinge shaft is arranged on the clamping jaw support through an oil cylinder fixing pin, an oil cylinder is movably arranged on the hinge shaft, the oil cylinder is connected to the periphery of the oil cylinder in a covering mode through an oil cylinder limiting protection cover, the oil cylinder is directly protected and is prevented from being collided by external force, and when the oil cylinder drives the clamping jaw head, the hinge shaft at the tail end of the oil cylinder is supported by two forces at the moment, so that the clamping jaw head is driven by the oil cylinder. One force is the supporting force of the oil cylinder fixing pin, and the other force is the supporting force of the oil cylinder limiting protection cover, so that the oil cylinder fixing pin is protected from being bent when being subjected to the counter-acting force of the oil cylinder, the oil cylinder can be protected from being damaged by external force, one side of the oil cylinder can be limited, and the service life of the oil cylinder is prolonged. And the oil cylinder fixing pin is prevented from being bent and damaged due to overlarge stress.

The utility model discloses a straightening device for wire processing, which comprises a straightening mechanism, one end of the straightening mechanism is connected to a support, the straightening mechanism comprises a transverse plate, a first shaft rod, a lower straightening roller, a guide rod, a movable plate, a second shaft rod and an upper straightening roller, the first shaft rod is installed inside one end of the transverse plate, the lower straightening roller is movably sleeved on the outer side of the first shaft rod, and the guide rod is installed on the lower straightening roller. The guide rod is fixed to the upper side of one end of the transverse plate, the movable plate is connected with the guide rod in a sliding and sleeved mode, the second shaft rod is installed in the movable plate, and the upper straightening roller is movably connected with the outer side of the second shaft rod in a sleeved mode. According to the straightening device, the distance between the upper straightening rollers and the lower straightening rollers can be adjusted, so that the straightening device is suitable for straightening wire rods with different thicknesses, and when the wire rods on the reel are pulled, the wound wire rods can be straightened through a plurality of groups of upper straightening rollers and lower straightening rollers.

The present invention relates to a production method of a thin-walled low-smoke and halogen-free dry loose tube. This technical solution optimizes the die drawing ratio, reduces the head pressure, and makes the discharging uniform and balanced. When producing a large number of cores, through the methods of optical fiber segmentation and decreasing tension, the loose tube does not bend or twist, avoiding the situations of snake shape, S shape, and inconsistent extra length. The loose tube produced by this technical solution has good molding, smooth appearance, uniform wall thickness, thin tube wall, and small shrinkage of the tube sheath. Moreover, it is a dry structure without grease filling, the tube wall thickness is very thin, with a minimum of 0.13 mm. This technical solution has a large optical fiber capacity, low cost, and is convenient for large-scale popularization and application.

The utility model relates to a windproof iron wedge technical field, concretely is a kind of wharf portal crane windproof iron wedge, including iron wedge body, the inside of iron wedge body is equipped with through-hole, the left and right sides of iron wedge body side are all clamped with clamping plate, the top of clamping plate is fixedly connected with fixed frame, the inside of clamping plate is equipped with insertion hole, the inside of insertion hole is inserted with plug shaft, the one end of plug shaft is equipped with slot, the side of clamping plate close to slot is equipped with sliding slot.The utility model has the advantages of: when using, after pulling plate is pulled to right, again, plug shaft is penetrated clamping plate and iron wedge body, when plug shaft is penetrated clamping plate, spring after hand release can be pushed to left with plug plate and complete reset, and the plug plate after reset is inserted into the slot of plug shaft, the fixation of plug shaft can be quickly completed, reach the purpose of being convenient for installation and disassembly plug shaft;The setting of positioning rod can avoid bending when spring compression, can assist spring more stable contraction and unfolding.

The utility model discloses a kind of needle-in-needle puncture devices for ultrasound imaging enhanced minimally invasive lumbar puncture, the needle-in-needle puncture device includes guide needle, lumbar puncture needle and lumbar puncture auxiliary needle;The guide needle tube is hollow structure;The outer surface of one end of the guide needle tube is equipped with the first coating area of enhanced ultrasound imaging;The lumbar puncture needle includes lumbar puncture needle tube, and the lumbar puncture needle tube is located in the guide needle tube;The inside of the lumbar puncture needle tube is hollow structure;The outer surface of one end of the lumbar puncture needle tube is equipped with the second coating area of enhanced ultrasound imaging;The lumbar puncture auxiliary needle includes needle core, and the needle core is located in the lumbar puncture needle tube, and the needle core structure is compatible with the lumbar puncture needle tube structure.Compared with prior art, the needle-in-needle puncture device for ultrasound imaging enhanced minimally invasive lumbar puncture of the utility model improves the visual effect and operation accuracy under ultrasound guidance in puncture process.

The utility model provides a refrigerator which comprises a refrigerator body and a refrigerator body wiring channel arranged on the upper portion of the refrigerator body. The door body is connected with the box body through a hinge, and a door body wiring groove is formed in the upper portion of the door body; the wiring assembly is connected between the box body wiring groove and the door body wiring groove; the wiring assembly comprises a box body leading-out part and a door body leading-out part, the box body leading-out part is connected to the box body wiring groove and fixed to the box body, and a first wiring space is formed in the box body leading-out part; the door body leading-out part is connected to the door body wiring groove and is fixed with the door body, and a second wiring space is formed in the door body leading-out part; the box body leading-out part is connected with a first conductive disc, the door body leading-out part is connected with a second conductive disc, the first conductive disc is in conductive contact with the second conductive disc, and the second conductive disc can rotate around the axis of the hinge relative to the first conductive disc. According to the utility model, the electrical signal connection between the door body and the box body can be realized, the wire can not be twisted, bent, worn and even broken when the door body is opened and closed, and the replacement and maintenance are convenient when a fault occurs.

The utility model discloses a wire core stabilizing guide wheel of a wrapping head for cable production, and belongs to the technical field of wire and cable production auxiliary equipment. Comprising an end cap, a connecting column, a seat ring and a guide wheel, an inner cavity with a left opening is formed in the end cap, threads are arranged on the side wall of the inner cavity, threading holes are formed in the end face center of the end cap and the center of the seat ring, threaded blind holes are formed in the right end face of the end cap and the left end face of the seat ring, and threaded heads are arranged at the two ends of the connecting column. Threaded heads at the two ends of the connecting column are connected with threaded blind holes in the end cap and the seat ring respectively, a strip-shaped hole is formed in the seat ring, and a guide wheel shaft at the left end of the guide wheel is assembled in the strip-shaped hole through a nut. The utility model can be conveniently added to the existing concentric lapping head; the position of the guide wheel is adjustable, so that the device is suitable for wrapping wire cores with different wire diameters; the radial force applied by the wrapping tape to the wire core can be completely balanced, the wire core is not bent, and the wrapping tape is wound flatly; and wire core twisting and core jumping caused by unstable pay-off tension can be effectively avoided.

The utility model relates to a plunger cylinder technical field, especially a compact plunger cylinder of back and forth action, including cylinder body, plunger rod and guide sleeve, the head end of cylinder body is covered in guide sleeve, plunger rod is located in the cylinder body, and plunger rod stretches out from the guide hole of guide sleeve, its characterized by: still including piston rod, the tail end of plunger rod in cylinder body has piston hole, and the piston end of piston rod inserts piston hole, and the inner chamber of piston hole is divided into rod cavity and rodless cavity by the piston of piston end, and the opening of piston hole is covered with cylinder cover, and one piston oil cylinder is formed on plunger rod, and the rod end of piston rod is connected with the bottom end of cylinder body. The utility model has the beneficial effects that: through inlaying piston oil cylinder in plunger cylinder, the self-limiting and back and forth action of plunger cylinder are realized while not increasing the volume of plunger rod, and moreover, plunger cylinder and piston oil cylinder can work simultaneously, and plunger cylinder will not cause the decrease of thrust because of inner chamber piston oil cylinder.

This application relates to the field of biomedical sensing and wearable health monitoring technology, and discloses a photoelectrochemical sensing microneedle and its preparation method, monitoring system, and detection method. The sensing microneedle comprises a swellable dual-network hydrogel microneedle matrix, a three-dimensional conductive network composed of high aspect ratio metal nanowires with localized surface plasmon resonance effect, and a semiconductor nanostructure composited on the surface of the metal nanowires to form a Schottky heterojunction. The mechanical constraint of the rigid polymer framework and the high aspect ratio of the metal nanowires synergistically ensure the continuity of the conductive network in the swelled state. Under excitation light irradiation, hot electrons migrate through the built-in electric field of the Schottky junction to the semiconductor surface to generate reactive oxygen free radicals. These free radicals then non-enzymatically catalyze the oxidation of target analytes in the interstitial fluid under zero or low bias voltage, generating a photocurrent signal, thus integrating minimally invasive sampling with in-situ highly selective detection.

The present invention relates to the technical field of metal tube bending processing, and discloses a metal tube bending device, including a bottom plate, a support column is provided on the left side of the bottom plate, a placing table is provided on the upper end of the support column, a driving roller is provided on the right end of the placing table, a support plate is provided at the front and rear ends of the right side of the bottom plate, a first slide is provided in the middle of the support plate, the first slide is slidably connected to the two sides of the sliding seat, a fixed plate is provided at the front and rear ends of the sliding seat, a rotating shaft is provided at the bottom of the fixed plate, a second slide is evenly distributed on the outer side of the fixed plate relative to the axis of the rotating shaft, the middle of the second slide is slidably connected to the second slider, the second slider is rotatably connected to the two ends of the supporting roller on the side close to the center of the device, and a third spring is provided between the second slider and the second slide. The present invention is applicable to a metal tube bending device, when the fixed plate moves up and down, the pressure rod can push the supporting roller to move, so that the radius of the arc composed of multiple supporting rollers changes, thereby achieving the effect of adjusting the bending radius.

The utility model relates to medical instrument technical field provides a kind of intelligent flushing catheter device. Device includes catheter main body, heating device and anti-pulling device. Heating device adjusts the temperature of physiological saline in real time through intelligent temperature control module, keeps flushing liquid constant temperature, avoids patient to cause discomfort due to low temperature liquid. Anti-pulling device is composed of chute, slider, spring and sensor group, can buffer external force and pull, protect catheter from bending or damaging. Sensor group real-time monitoring external force and slider displacement, intelligent feedback system can trigger alarm and remote notify medical staff when abnormal situation. Catheter main body surface is equipped with support device, prevent bedding compression, ensure catheter unobstructed. The device has constant temperature heating, anti-external force and intelligent monitoring function, applicable to a variety of medical scenarios, significantly improve patient safety and operation convenience, with wide application prospect.