202results about How to "Reduce radial size" patented technology

The invention discloses a coaxial superconducting joint structure suitable for a CICC conductor and a preparation method, and belongs to the technical field of superconducting magnet joint design and manufacturing. The two stainless steel tubes are respectively arranged at the tail end core parts of the two CICC conductors, the tail end axes of the two stainless steel tubes are aligned, and the end parts are tightly attached; the two copper pipes sleeve the peripheries of the two CICC conductor tail end superconducting cables, the tail end axes of the two copper pipes are aligned, and the end parts of the two copper pipes are tightly attached; the indium conducting layer is wound on the peripheries of the two copper pipes; the four fan-shaped copper sheets jointly wrap the periphery of the indium conducting layer; the two stainless steel shells wrap the peripheries of the four fan-shaped copper sheets, and the two ends of the two stainless steel shells are connected with the stainless steel armors at the tail ends of the two CICC conductors respectively. The CICC coaxial connector has the advantages that coaxial connection between the two CICC conductors is achieved, the occupied radial space is small, and the arrangement requirement of a narrow space is met. The superconducting joint structure has excellent resistance characteristics and low alternating current loss.

The invention is suitable for the technical field of optical distance measuring devices, and provides an optical distance measuring device and a mobile robotic.The optical distance measuring device comprises a shell part, a bearing part and a driving part, the shell part comprises a base and a rotating middle shell, the rotating middle shell comprises an annular structure and a clamping hook structure, and the annular structure is provided with a hollow part; the clamping hook structure is at least partially arranged in the hollow part; an inner ring of the bearing part is mounted on the base, and the rotating middle shell is mounted on the bearing part through matching of a clamping hook structure and an outer ring of the bearing part; the driving part is installed on the base, a transmission structure is arranged on the outer side wall of the annular structure, and the driving part can drive the rotating middle shell through the transmission structure. According to the optical distance measuring device provided by the invention, a radial gap between the mounting structure of the bearing part outer ring and the transmission structure is omitted, a part of radial space occupied by the mounting structure of the bearing part outer ring and the transmission structure is also omitted, the radial size of the rotating middle shell is reduced, and the miniaturization design of the optical distance measuring device is facilitated.

The invention relates to the technical field of robots, and discloses an actuator, a joint module, a biped robot, a quadruped robot, a four-wheeled robot, a mechanical arm and a robot. The actuator mainly comprises a first-stage planet carrier, a first bearing, a gear ring and a supporting frame, the first-stage planet carrier enables the first bearing to be installed between a first supporting part and a second supporting part of the supporting frame so as to provide support for the first-stage planet carrier, the requirement for the size of the first bearing is reduced through the supporting mode, the outer diameter of the planet carrier does not need to be matched, and the supporting effect is good. The structure is more compact, and the weight and cost of the actuator can be reduced by reducing the size of the first bearing.

The utility model discloses an electrode pair, a shock wave balloon catheter and a shock wave balloon catheter system. The insulating part is arranged on the periphery of the inner electrode in a sleeving mode, and the insulating part is provided with a first opening penetrating through the space between the two ends of the insulating part; the outer electrode is arranged on the periphery of the insulating part in a sleeving mode, and the outer electrode is provided with a second opening penetrating through the portion between the two ends of the outer electrode. By improving the structures of the insulating part and the outer electrode, gaps between the insulating part and the inner electrode as well as between the outer electrode and the insulating part are eliminated, the radial size of the electrode pair is reduced, and when the electrode is correspondingly applied to the shock wave balloon catheter, the outer diameter of the shock wave balloon catheter corresponding to the electrode pair can be reduced; and the ability of the shock wave balloon catheter to pass through a narrow tortuous blood vessel is improved. The insulating part and the outer electrode are circumferential non-closed parts, only the wall thickness of the insulating part and the wall thickness of the outer electrode need to be controlled, the precision requirement for the inner diameter and the outer diameter of the insulating part and the outer electrode is low, and therefore the machining difficulty and the machining cost are reduced.

The invention discloses a laser-phosphorescence coupling type optical path system for a two-dimensional phosphorescence temperature measurement optical fiber probe, and relates to the field of non-contact solid surface temperature measurement, and the laser-phosphorescence coupling type optical path system is characterized in that an object to be measured is coated with a phosphorescence material coating; the laser light source generates laser capable of exciting the phosphorescent material coating; the laser transmission module is located on a light path of laser emitted by the laser light source; the light splitting module is positioned on a laser emergent light path of the laser transmission module and is also positioned on a phosphorescence emergent light path of the coupling transmission module; the coupling transmission module is positioned on a laser emergent light path which is turned back by the light splitting module and is also positioned on a phosphorescence emergent light path of the object to be measured; the image decomposition module is located on a phosphorescence emergent light path of the light splitting module; the image receiving module is located on a phosphorescence emergent light path of the image decomposition module. On the basis of realizing two-dimensional phosphorescence image acquisition, the laser and phosphorescence transmission efficiency is improved, the size of the probe is reduced, and the problem of high-efficiency transmission of two-dimensional phosphorescence signals in a narrow space is solved.

The invention relates to the technical field of robots, in particular to a joint module and a robot, and solves the problem that the torque of the joint module is still small under certain size limitation. The joint module comprises a motor shell, a center shaft, a first sun gear, a plurality of first planet gears, an inner gear ring, a first planet carrier, a rotor, a connecting sleeve and a stator. The rotor is arranged on the inner ring of the stator, the stator is fixedly connected with the motor shell, only a gap needs to be reserved between the rotor and the stator, and the radial size of the joint module is reduced. In addition, the rotor is arranged on the outer sides of the first sun gear and the first planet gear in a sleeving mode, the rotor and the first sun gear are connected through the connecting sleeve, and the axial size of the joint module is reduced. Namely, the radial size and the axial size of the joint module are reduced, and the torque capable of being borne by the joint module can be increased under the condition that the space of the joint position of the humanoid robot is limited.

The invention relates to a vacuum microcavity interferometer chip, a manufacturing method and an ultra-high precision optical pressure sensor, the lower surface of a first substrate is etched to form a concave cavity, after the first substrate and a second substrate are bonded, the concave cavity forms an F-P interference cavity, and the F-P interference cavity forms an F-P cavity; a first reflecting surface is arranged on the surface of the first substrate in the F-P interference cavity, a second reflecting surface is arranged on the surface of the second substrate in the F-P interference cavity, an annular cavity is formed in the upper surface of the third substrate, and the getter film is deposited on at least one surface in the annular cavity. The second substrate is provided with at least one vent hole, and the vent hole is communicated with the F-P interference cavity and the annular cavity; the projections of the annular cavity and the F-P interference cavity on the horizontal plane at least partially coincide.

The invention discloses a porous static pressure gas radial bearing based on piezoelectric shunt damping, and belongs to the technical field of static pressure gas bearings. Comprising a bearing shell, a bearing sleeve and a porous throttler which are arranged in the bearing shell in the axial direction, and a piezoelectric shunt damping module which is arranged between the bearing shell and the bearing sleeve and is axially fixed through a check ring. Wherein the piezoelectric shunt damping module is formed by connecting a force amplifier, a piezoelectric ceramic stack, a pre-tightening pressing block, a pre-tightening screw, a steel ball and a locking nut; the force amplifier is of an axisymmetric structure composed of two trapezoidal connectors, four thin-wall beams and two end plates. The piezoelectric shunt damping module is arranged in the bearing, vibration mechanical energy of the bearing sleeve is converted into electric energy through the piezoelectric ceramic stack, and net damping is provided for the bearing by consuming the electric energy generated by the piezoelectric ceramic stack through the external shunt resonance circuit, so that the amplitude of the rotor relative to the bearing at a high rotating speed is reduced; the high-speed stability of the bearing is improved.

The invention relates to the technical field of fluid connectors, in particular to a floating plug and a fluid connector assembly. The floating plug comprises the plug shell, the plug shell is internally provided with the mounting inner cavity extending front and back, the transmission core tube can radially float and deflect relative to the plug shell through the radial gap and the centering elastic structure arranged in the mounting inner cavity, and the plugging tube can be centered after the plug and the socket are separated. The fluid connector assembly comprises the floating plug and the socket, the problem that the whole floating plug occupies a large space due to the fact that a floating module is added for giving consideration to large radial floating tolerance and angle floating tolerance is solved, and miniaturization of the fluid connector assembly is further ensured; and the structural precision and the aesthetic degree of the server are improved.

The invention discloses a coaxial planet row driving device for a vehicle. The coaxial planet row driving device comprises a shell, a power motor, a planetary reducer gear mechanism and a planet row differential mechanism. The power motor comprises a rotor assembly, a stator assembly and a rotor shaft; the planetary reducer gear mechanism comprises a first sun gear connected with the rotor shaft, a first planet carrier and a gear ring which are arranged in the shell, and a first duplex planetary gear set arranged on the first planet carrier; the rotor shaft, the planetary reducer gear mechanism and the planet row differential mechanism are coaxially arranged, a first output part and a second output part at the two ends of the rotor shaft are connected to the driving wheel, and the first sun wheel is in meshed connection with the first duplex planetary gear set. By designing the planetary reducer gear mechanism with coaxial input and output and the planetary row differential mechanism with parallel axis design, the axial and radial sizes of the driving device are shortened to the maximum extent on the basis of ensuring the gear performance, the miniaturization and light weight of the driving device are facilitated, and the applicability is greatly improved.

A mixed connector plug and socket capable of preventing mistaken touch are characterized in that a plurality of conductive rings of the plug are respectively sleeved on different outer supporting surfaces, a high-frequency insertion piece and the plurality of conductive rings are arranged at intervals along the axial direction, and the convex parts of a high-frequency contact piece and a plurality of low-frequency contact pieces of the socket are also sequentially distributed along the axial direction; therefore, the high-frequency connector and the low-frequency connector can respectively realize contact transmission at different axial positions, so that the radial size of the mixed connector is effectively reduced; the outer diameter of the conducting ring farthest away from the high-frequency insertion piece is larger than the outer diameter of the conducting ring adjacent to the high-frequency insertion piece, the diameter of the inner supporting faces of the multiple low-frequency contact pieces is matched with the outer circumferential faces of the multiple conducting rings, a multi-layer cylindrical stepped structure is formed on the plug and the socket, all layers can make direct contact in the inserting process, and therefore the plug and the socket are not prone to being damaged. The low-frequency contact piece does not need to slide over the conducting rings of other levels, so that wrong contact between non-corresponding levels is avoided, meanwhile, friction loss in the sliding plugging process is reduced, and the service life of the product is prolonged.

The utility model relates to a squeezing and expanding branch pile which comprises a pile foundation hole, a reinforcement cage and a vertically-arranged driving rod, the driving rod is located on the inner side of a vertical reinforcement, the driving rod is in running fit with the upper end of the reinforcement cage, an upper side nut and a lower side nut are connected to the driving rod in a threaded mode, and the thread turning directions of the upper side nut and the lower side nut are opposite. A connecting rod mechanism corresponding to the position of the annular groove of the supporting disc is arranged between the upper side nut and the lower side nut and comprises an upper side connecting rod and a lower side connecting rod, the adjacent ends of the upper side connecting rod and the lower side connecting rod are hinged, the upper side connecting rod and the lower side connecting rod are metal connecting rods, the upper side connecting rod is hinged to the upper side nut, and the lower side connecting rod is hinged to the lower side nut. The connecting rod mechanism is located between the two corresponding adjacent vertical steel bars so as to limit rotation of the upper side nut and the lower side nut when the driving rod rotates, and the two adjacent vertical steel bars are called the first vertical steel bar and the second vertical steel bar. The utility model provides a squeezing and expanding branch pile capable of adding a metal support to a branch part.

The present application belongs to the technical field of medical apparatus and instruments, and particularly relates to a four-direction transmission bronchoscope. The present application comprises a shell, a rocker transmission assembly installed at the rear end of the shell, and a flexible insertion part installed at the front end of the shell. The rocker transmission mechanism comprises a cross rocker frame, a rocker, and four driving ropes. One end of the driving ropes is in transmission connection with the rocker through the transmission assembly, and the other end is fixedly arranged at the tail end of the flexible insertion part. The rocker is configured to, under the action of an external force, pull the corresponding driving ropes through the transmission assembly to drive the tail end of the flexible insertion part to continuously deflect and adjust in four directions, i.e. up, down, left and right. The present application integrates the rocker, the cross rocker frame and the four driving ropes in the shell, and adopts a single rocker linkage four-rope layout to replace the split layout transmission mode of the traditional multiple independent steel wire cooperating with independent transmission wheel sets, thereby significantly simplifying the transmission structure and improving the integration degree and space utilization rate of the rear end transmission assembly.

The invention provides a woven stent, a delivery system and a stent system.The woven stent is formed by weaving a plurality of weaving wires in a staggered mode, the end portions of all the weaving wires at at least one end of the woven stent are provided with preset structures, the preset structures are smooth structures, all the preset structures at at least one end of the woven stent are distributed on different circumferential faces, and the preset structures are smooth structures. The conveying system comprises a conveying guide wire, a plurality of friction pads are arranged at the far end of the conveying guide wire at intervals in the axial direction, and the woven stent is used for being loaded on the friction pads. The preset structure at the at least one end of the woven stent is used for being clamped and matched with the gap between the friction pads, so that the probability of stent deloading and withdrawing failure in the conveying process can be reduced, and scratching of the stent to the microcatheter and stimulation of the stent to the blood vessel wall can be reduced.

The invention discloses a direct injection type high-heat-intensity blue light infrared gas appliance which comprises a combustion part, the combustion part comprises a furnace body and an injection pipe which are communicated with each other, a premixing adjusting plate matched with the furnace body is fixedly connected in the furnace body, and the premixing adjusting plate is arranged above the injection pipe; the flame stabilizing piece is arranged at the end, away from the injection pipe, of the furnace body. The ignition part is arranged in the furnace body, and an ignition positive electrode of the ignition part penetrates through and is exposed out of the flame stabilizing part; the nozzle piece is connected with one end of the injection pipe away from the furnace body. According to the gas appliance provided by the invention, the premixing adjusting plate can prolong the premixing path and adjust the distribution effect of the mixed gas, so that the axial length of the injection pipe and the radial size of the furnace chamber are effectively shortened, and uniform combustible mixed gas is efficiently formed; the built-in ignition part distributes most of fuel gas in most area of the middle area of the flame stabilizing part to form infrared combustion, and the outer edge part forms atmospheric combustion of blue flame and micro flame, so that efficient combustion and high heat intensity of the combustor are realized, the size of a gas appliance is effectively reduced, and the gas appliance is more portable.

The blood pressure measuring device comprises a base, an arc-shaped bearing part, a fixed air bag cuff, a movable air bag cuff and a combined telescopic mechanism, the arc-shaped bearing part is arranged in the base, the fixed air bag cuff is fixed in the arc-shaped bearing part, one end of the movable air bag cuff is fixed at a fixed position in the base, and the other end of the movable air bag cuff is fixed at a fixed position in the base. The power mechanism and the execution mechanism of the second extension mechanism are separately arranged, the heavy power mechanism is allowed to be installed on the base, and the load of the first extension arm can be reduced.

The utility model discloses an integrated joint module and robot relates to motor technical field, and the integrated joint module includes: casing, motor, planetary gear reduction box, encoder and drive control board, the casing is the tubular structure, the motor is used to provide power, and the motor includes stator, rotor and rotation axis, and the stator is hoisted in the top inside casing, and the rotor rotatably sets up inside casing, and is located stator outside, and rotation axis is connected with the rotor, and its outer periphery is provided with the tooth, the planetary gear reduction box sets up in stator inside, and including fixedly installed inside stator's inner tooth ring, the planetary wheel that engages in the inner tooth ring with rotation axis between and the planetary wheel connection's planet carrier, the encoder includes the first encoder for monitoring rotation axis and the second encoder for monitoring planet carrier, and drive control board is located in casing, and is connected with motor. Such setting, can reduce the size of joint structure, realizes double magnetic encoder output configuration simultaneously, improves its output accuracy.

One end of a linear rotating shaft is fixedly connected with a grinding head, the other end of the linear rotating shaft is fixedly connected with a driving connecting shaft, the linear rotating shaft is sleeved with a wear-resistant guide sleeve, the wear-resistant guide sleeve is sleeved with an inner guide pipe, the inner guide pipe is installed in a fixed outer pipe, at least one axial liquid inlet plane is arranged on the outer circle of the inner guide pipe, and the outer circle of the inner guide pipe is provided with an axial liquid outlet plane. An axial liquid injection channel is formed between the axial liquid inlet plane and an inner hole of the fixed outer pipe, the liquid injection pipe is communicated with the axial liquid injection channel, and a protection plate is arranged at the end, close to the grinding head, of the fixed outer pipe. According to the structure, the rotating friction resistance and temperature rise of the linear rotating shaft can be reduced. A liquid injection pipe does not need to be additionally arranged, so that the product structure and the radial size of the product are simplified, and the requirements of minimally invasive surgery can be better met. The protective plate not only can prevent the cooling liquid from splashing when the grinding head rotates, but also can prevent damage to extraterritorial tissues caused by accidental movement in operation, and can provide a more focused visual range for precise operation, so that the accuracy of the grinding and drilling operation is improved.

The utility model discloses an upper cross beam structure of a closed four-point high-speed precision press, which comprises an upper cross beam, the upper cross beam is of a symmetrical structure, two ends of the upper cross beam are respectively provided with a mounting hole, each mounting hole is respectively provided with a first sliding bearing seat, and at least one mounting hole is provided with a flywheel seat; a first installation seat is arranged in the middle of the upper cross beam, a second installation seat is detachably arranged on the first installation seat, lower bearing seats are arranged at the two ends of the first installation seat respectively, upper bearing seats are arranged at the two ends of the second installation seat respectively, and each upper bearing seat and the corresponding lower bearing seat form a second sliding bearing seat. According to the technical scheme, the upper cross beam is of a unique split type structure, and the first installation base and the second installation base are connected through the attached installation planes and the bolts. On one hand, machining is facilitated, and the overall machining difficulty is reduced; and on the other hand, when the precision deviation of the hole system is detected, fine adjustment can be carried out by repairing the mounting plane.

This invention discloses a coaxial dual-cavity optical detection system, relating to the field of gas detection, which solves the problems of poor portability and low laser utilization in existing equipment. The system includes an air inlet, two coaxially arranged cavities with the inner cavity located inside the outer cavity, a vent, an outlet, a plano-concave mirror, and symmetrical window mirrors. The two cavities are interconnected through the vent, allowing for gas filling and exhaust with a single gas path. Coaxial parallel plano-concave mirrors are installed within the cavities, working in conjunction with an external reflector, convex lens, and detector to guide refracted light incident on the inner cavity into the outer cavity for utilization, forming a closed loop in the optical path of the two cavities. This system significantly reduces longitudinal and lateral dimensions, improving portability; simultaneous dual-cavity detection improves detection accuracy; the utilization of refracted light enhances laser utilization and sensing efficiency; and the increased effective optical path within a limited volume improves gas detection sensitivity, making it suitable for trace gas detection.

The invention relates to a high-precision photoelectric load servo stabilization system which is characterized in that an outer frame is connected with a carrier, and an inner frame is connected with a load supporting platform; the rotary biprism light beam pointing control module is installed on the load supporting platform and provides a light beam pointing adjusting function. The outer frame and the inner frame are connected through a passive vibration reduction and isolation array, and the passive vibration reduction and isolation array is composed of a plurality of sets of cross-shaped flexible parts which are symmetrically arranged, supports the inner frame and achieves passive high-frequency vibration isolation. The active vibration reduction and isolation array is connected between the outer frame and the inner frame through a coil component support and a permanent magnet component support, and the active vibration reduction and isolation array is composed of a plurality of sets of symmetrically-arranged voice coil motors and used for actively restraining six-degree-of-freedom low-frequency vibration of the inner frame. The system is used for providing a stable working environment and a light beam pointing control function for a photoelectric load carried on a carrier, and has the advantages of being good in vibration reduction and isolation effect, low in friction resistance, high in space utilization rate and good in light beam pointing control dynamic performance.

The utility model discloses a table type taping machine, and relates to a taping machine. Comprising a working table top, a tool box, a tape wrapping head, a constant tension tape wrapping disc, an electric cabinet box, a pedal plate, a pedal switch, a feeding servo structure, a clamping roller structure and a rack, the working table top is arranged at the top of the rack, the tool box and the electric cabinet box are arranged on the left side and the right side of the rack respectively, the pedal plate is arranged at the bottom between the racks, and the pedal switch is arranged on the pedal plate. A taping head is arranged on one side of the middle of the working table, a constant-tension taping disc is arranged on the right side of the taping head and is in transmission connection with the feeding servo structure, and the foot switch and the feeding servo structure are both connected with the electric cabinet box. The coil winding device is reasonable in structural design, long in service life, convenient and reliable to maintain and suitable for coils of more specifications, and the problem of interference with taped coils is solved.

The invention discloses an ineffective potential suppression structure for a small inductosyn, and belongs to the technical field of inductosyn. The invention aims at the application requirements of high precision and small size of the inductosyn. A stator effective conductor of the inductosyn is arranged on the front surface of the stator substrate and is arranged along the whole circumference of the stator substrate; a stator substrate and a rotor substrate of the inductosyn are made of ferromagnetic materials. Stator ineffective conductors of the inductosyn are arranged on the back face of a stator substrate and are arranged along the whole circumference. The stator non-effective conductor and the stator effective conductor are connected through dense via holes; a stator effective conductor and a rotor conductor of the inductosyn are arranged in a radial alignment manner. According to the stator design scheme based on the double-layer metal-based MCPCB, the ferromagnetic material is used for improving the signal strength and shielding the ineffective potential, the precision and the signal-to-noise ratio are improved, meanwhile, the radial and axial space occupation is reduced, and the application requirement of the induction synchronizer in a small precise servo system is met.

This application relates to the field of machining technology, and discloses an ultrasonic tool holder, ultrasonic machining equipment, and machine tool. The ultrasonic tool holder includes: a tool body and a connecting sleeve. The tool body has a second end and a first end arranged opposite to each other in a front-rear direction. The first end is adapted to be connected and fitted with a spindle, and the second end has a mounting cavity for accommodating a transducer. A wireless receiving unit is provided on the outer periphery of the tool body. The connecting sleeve is connected to the second end and arranged coaxially with the tool body. An outer shell is fitted onto the outer periphery of the connecting sleeve through a bearing, wherein the inner diameter of the bearing is less than or equal to the outer diameter of the second end. Therefore, by placing the bearing between the connecting sleeve and the outer shell, the bearing does not occupy the outer periphery space of the tool body, which reduces the axial dimension of the tool body, thereby improving the rigidity of the tool body and reducing the overall axial dimension of the ultrasonic tool holder. It also increases the structural dimensions of the transducer and reduces the radial dimension of the bearing, thereby improving ultrasonic machining performance.

The invention discloses a double-gear double-output integrated electric drive axle speed reduction transmission device which comprises a motor output shaft, the motor output shaft is connected with a gear shaft through a first-stage duplicate gear set spline, and the gear shaft is connected with an input shaft through a second-stage duplicate gear set spline. A low-gear gear set and a high-gear gear set are arranged on the outer side wall of the input shaft. According to the gear-shifting speed reducer, the structural design of the gear-shifting speed reducer is achieved through engagement of the spline housing, the problem that a traditional single-gear new energy light truck can maintain efficient area work only under few working conditions is solved, it is guaranteed that a motor can continuously work in the efficient area under various working conditions, and the working efficiency of the motor is improved. The speed reducer and the motor are coaxially designed, a duplex gear mechanism is selected, the radial size is greatly reduced, the radial size is shortened by 30% compared with an electric drive axle product of the same grade, the design is more compact, the speed reducer is more compact in size and more convenient to install, the efficient working area of the motor is wider, the power performance of a vehicle is better, and the endurance mileage of the vehicle is increased.

The utility model discloses a novel rotary pipeline robot structure relates to robot technical field, including initiative knot, the initiative knot is provided with battery knot and control knot, the initiative knot, battery knot and control knot are connected through the connector between, initiative knot: contain initiative knot mounting bracket, first locking screw, initiative wheel frame, initiative wheel, initiative knot shell, second locking screw, rear initiative wheel frame, rear initiative wheel, third locking screw and double -output shaft drive motor, the surface of initiative knot mounting bracket is sleeved with initiative knot shell, the left and right two ends of initiative knot shell are fixed in the left and right two ends of initiative knot mounting bracket surface through the second locking screw of uniform distribution, the inside installation of mounting bracket has double -output shaft drive motor, the left and right sides of initiative knot mounting bracket inside are provided with initiative wheel frame and rear initiative wheel frame respectively, simple and reliable structure, and the two functions of equipment walking and shock attenuation are realized simultaneously to all -in -one wheel frame.

The present invention relates to an anti-shake camera module, which includes: a lens assembly and a chip anti-shake photosensitive assembly. The chip anti-shake photosensitive assembly includes: a cover body, a chip assembly, a lead frame, a chip OIS ball and a driving element; wherein the chip OIS ball is arranged between the cover body and the chip assembly and supports the cover body and the chip assembly in the z-axis direction. The lens assembly includes a lens driving assembly and an optical lens, wherein the lens driving assembly includes a second driving structure, which is used to drive the optical lens to move along the xoy plane to achieve shake correction, and the second driving structure drives the optical lens to move in a direction opposite to the direction of movement of the chip assembly. The present invention adopts a dual OIS solution to expand the anti-shake stroke without increasing the radial size of the camera module, and is particularly suitable for large-chip camera modules.

The invention discloses a center shaft treading force detection mechanism based on center shaft radial strain tension detection, which comprises a center shaft which penetrates through two ends in a five-way pipe and is used for mounting a crank, and a chain wheel is fixed at one end of the center shaft and is connected with a chain wheel of a rear wheel through a chain; the center shaft is supported in the bowl piece through a center shaft bearing, the end, close to the center shaft fixing crankset, of the bowl piece extends out of the bottom bracket and is provided with an expanded bowl opening, an eccentric ring is embedded in the bowl piece, and an inner ring of the eccentric ring is rotationally assembled on the center shaft through an eccentric ring bearing; the center of the outer ring is eccentrically arranged relative to the axis of the middle shaft, a spring piece fixed to the eccentric ring and the bowl piece is further embedded in the bowl opening, a strain gauge is attached to the spring piece, radial tension transmitted to the middle shaft through the chain wheel by the chain is used for driving the eccentric ring to rotate relative to the center of the eccentric ring, and the eccentric ring drives the spring piece to generate micro deformation. And the strain gauge induces to output a treading force signal. According to the mechanism, the pedal force detection precision is higher, the problem of false detection of the strain gauges is solved, the structure is simpler, and assembly is easier.

The utility model discloses a front end seat, a front end assembly, an insertion part and an endoscope, and relates to the technical field of medical instruments. The front end seat disclosed by the utility model is applied to the front end assembly of the endoscope. The front end base is provided with an inner cavity and an instrument opening formed in the far end face of the front end base, the inner cavity is used for installing a functional device and an instrument tube of the front end assembly, and the instrument opening is communicated with the inner cavity and used for being matched with the instrument tube to form an instrument channel outlet; the front end base is further provided with an insertion protruding part arranged on the far end face of the front end base, and the orthographic projection of the insertion protruding part on the plane where the far end face is located is located in the far end face in the axial direction of the front end base and avoids the instrument opening. According to the scheme, the problem that the insertion action of the insertion part is not smooth enough in the prior art can be at least solved.

Conducting rings and insulating spacers of the plug are sequentially and alternately arranged in the axial direction to form a cylinder shape, and an insulating plug installed on a high-frequency insertion piece is located on one side, in the axial direction, of the cylinder shape where the conducting rings are located, namely the high-frequency insertion piece and the conducting rings are sequentially distributed in the axial direction. The projections of the high-frequency contact element and the plurality of low-frequency contact elements of the socket are sequentially distributed along the axial direction, so that the high-frequency connector and the low-frequency connector can respectively realize contact transmission at different positions in the axial direction, and the radial size of the mixed connector is effectively reduced; the outer peripheral surfaces of the plurality of conducting rings and the insulating spacers form the same outer cylindrical surface, so that the radial sizes of the plug and the socket can be reduced to the maximum extent, and the miniaturization of the mixed connector is greatly facilitated.