267results about How to "Small installation size" patented technology

The present invention relates to dialysis devices comprising peristaltic pumps of linear build with piezoelectric actuators.

The invention discloses a steering engine for an underwater vehicle. A speed reducer, a lead screw nut, a resistive position sensor and a connector are located on one side of the speed reducer; a lead screw and a nut are coaxially arranged; the steering engine has a compact structure, and the mounting size of the steering engine is reduced. A travel insert block is embedded into the middle part of the lead screw; when the lead screw extends out for a certain distance, the travel insert block is tightly attached to the inner wall of an outer end cover to limit the extension distance of the lead screw; at one end of the lead screw matched with a drive nut, a blind hole in the drive nut has certain depth; and when the lead screw retreats, a travel boss at the end of the lead screw close to the nut is tightly attached to the end surface of the inner hole of the drive nut to limit the retreat distance of the lead screw. According to the invention, through a reverse travel self-locking of a lead screw nut mechanism, the steering engine realizes firm mechanical self-locking to maintain the stability of a rudder surface. The adopted hollow cup DC (direct current) motor has small rotational inertia, the lead screw nut mechanism is supported and guided by a deep groove ball bearing, a ball and a linear bearing, the frictional resistance is reduced, and the response speed of the steering engine is increased.

The invention discloses an infrared touching screen to realize scanning driving through bus structure, which is characterized by the following: setting a serial code coder of infrared launching and receiving pipe address scanning code in the micro-controller system; inserting decoding chip of decoder corresponding to the coder and address comparing unit of each address value corresponding to scanning address of infrared launching and receiving pipe in the infrared element; connecting address line, driving line or signal line system bus between coder and infrared launching and receiving pipe array; the serial code coder connects the circuit board with infrared launching pipe array and infrared receiving pipe array through connector. The invention reduces the breadth of frame to the maximum degree, which can be assembled on random display for kinds of occasion.

The invention proposes a mechanical roller tappet (1a, 1b) comprising a tappet housing (2a, 2b) shaped out of sheet metal, a drive roller (3) actuable by a cam (9) and an axle (5a, 5b) on which the drive roller (3) is mounted, end portions (24) of the axle (5a, 5b) being supported in axle eyes (23) of the tappet housing (2a, 2b), said tappet housing (2a, 2b) comprising a tappet skirt (10a, 10b) and a tappet bottom (16) possessing a contact surface (21) for an adjacent engine component on a power take-off side. At an end of the tappet skirt facing the cam, the tappet bottom is connected to the tappet skirt and is shaped into the interior of the tappet skirt while forming a pocket for receiving the drive roller, the axle eyes being arranged in first sections (18) of the tappet bottom while being spaced from an inner peripheral surface (19) of the tappet skirt and extending substantially parallel to the longitudinal direction of the tappet skirt, the contact surface being arranged on a second section (20) of the tappet bottom connecting the first sections to each other.

The invention discloses an electric dynamometer, which comprises a mechanical transmission system and a frequency conversion control system. The mechanical transmission system comprises two sets of transmission subsystems. The two sets of transmission subsystems are symmetrically arranged and connected in a way of rotating in the same direction, and forwards and backwards drive each other. Each set of transmission subsystem comprises a variable frequency motor and a speed reducer or an accelerator. The speed reducer or accelerator of one set of transmission subsystem is connected with a tested rotating part, and the speed reducer or accelerator of the other set of transmission subsystem is connected with an accompanying-tested rotating part. The tested rotating part and the accompanying-tested rotating part are flexibly connected, and synchronously rotate. The frequency conversion control system comprises two frequency converters. A frequency converter is connected with the variable frequency motor of each set of transmission subsystem. The two frequency converters are connected through a direct current bus. The frequency conversion control system performs closed loop control on the variable frequency motors through the frequency converters. The electric dynamometer is used for solving the problems of high cost, incapability of realizing forward and backward driving, low energy utilization rate and the like.

The invention discloses an air conditioner frequency-conversion driving control system and an air conditioner using the same. The air conditioner frequency-conversion driving control system comprises a compressor motor, a fan motor and a single frequency-conversion driver. An output shaft of the frequency-conversion driver is simultaneously connected with the compressor motor and the fan motor, so that the compressor motor and the fan motor are simultaneously controlled. The control cost is greatly reduced on the premise that the running efficiency and the energy efficiency ratio of the air conditioner frequency-conversion driving control system are equivalent to those of a double-frequency-conversion air conditioner driving system, and the mounting size of the air conditioner frequency conversion system is effectively reduced.

The invention relates to an apparatus for drying hearing aids. According to the invention, the drying apparatus includes a housing and in the housing a hearing aid shell for inserting the hearing aid and a fan, with the fan accelerating air by means of an electro-aerodynamic pump. The electro-aerodynamic pump is advantageously embodied to generate gas ions and to accelerate the gas ions through an electrical field. The electro-aerodynamic fan is advantageous in that it requires little space and, except for the air flow, operates at a low noise level.

The invention relates to a bulk material distributing device. The device comprises a reducing motor (1), a gearbox (2), a rotatably driven gearbox (3), an outer ring (4), an inner ring (5), a shell (6), an upper fixed chute (7), a gear A (8), a cross blanking tube (11) and a lower fixed chute (12), wherein the lower fixed chute (12) is mounted at the lower end of the cross blanking tube (11) which is mounted on the inner ring (5) and the outer ring (4); the inner ring (5) is fixed on the upper fixed chute (7); and the outer ring (4) is fixed on the shell (6). The bulk material distributing device in the structure can realize the self rotation and tilting of the lower fixed chute (12) and has simple structure and low manufacture cost.

The invention discloses an impeller allowing fan blades to be firmly clamped in wheel hub discs at different angles, which comprises a pair of wheel hub discs and at least two fan blades, wherein each fan blade comprises a blade and a blade stem; each blade stem comprises a cylindrical supporting arm, a positioning edge and a positioning seat; the outer edge of the inner end face of each positioning disc is provided with at least two equant inner semi-cylindrical grooves; the outer end faces of the positioning discs are provided with positioning keys; the positioning discs are arranged in accommodating cavities on the end face of the positioning seats; the circumferential walls of the accommodating cavities are provided with outer semi-cylindrical grooves corresponding to the inner semi-cylindrical grooves one by one; one positioning seat and one positioning disc are closed together by cylindrical pins arranged in one pair of inner and outer semi-cylindrical grooves; each wheel hub is provided with front semi-cylindrical grooves which are used for mounting the supporting arms and the same as the fan blades in number and rear semi-cylindrical grooves which are used for mounting the positioning seats and the positioning discs and the same as the fan blades in number; and the rear walls of the rear semi-cylindrical grooves are provided with key slots of the positioning keys. The impeller is mainly used in axial flow fans.

The invention relates to a lifting device and a stage structure using the same. The lifting device comprises a fixing support for being connected with an operating platform, a guide frame, a chain wheel assembly and a drive unit, wherein, the chain wheel assembly comprises a chain wheel and a chain wound on the chain wheel, one end of the chain is fixedly connected with the fixing support, the other end of the chain is fixedly connected on the guide frame, and the chain wheel is arranged on the guide frame in relative slip and relative rotation manners; and the drive unit drives the chain wheel to rise and fall along the guide frame so that the chain drives the fixing support to rise and fall so as to realize lifting operation of the operating platform. The lifting device has the advantages that motion stroke of an oil cylinder is increased by means of the chain wheel and the chain, thus reducing installation size of the lifting device; and the operating platform can stably rise and fall under guidance of guide shoes and guide rails.

The invention discloses a unidirectional output conversion device, and aims to provide a unidirectional output conversion device which has the advantages of simple structure and low manufacture cost, is convenient to arrange and is flexible to install. The unidirectional output conversion device provided by the invention comprises an input shaft, an output shaft, a first spin wheel, a second spin wheel, a third spin wheel, a first overrun clutch and a second overrun clutch, wherein the third spin wheel is externally meshed with the first spin wheel and is internally meshed with the second pin wheel; the first spin wheel and the second spin wheel are connected with a respective rotation shaft respectively by the first overrun clutch and the second overrun clutch; and the clutching directions of the first overrun clutch and the second overrun clutch are opposite. Therefore, according to the unidirectional output conversion device, back-and-forth swinging and continuous rotation are converted into fixed-direction output.

The invention provides a heat dissipation structure of a computed tomography (CT) device. Due to the structural design of an air duct and fans, fans do not interfere with each other. The fans and the air duct are fixed on a support plate, the rear space of the support plate is fully used, and the fans and the air duct are not directly installed over a heat dissipation component, so that the installation size above a CT device rack can be effectively reduced, and the overall height of the rack is lowered. Due to cooperation of the air duct and the support plate, the impact of the fans on the air of the rear space of the support plate is effectively prevented, independence of the front space and the rear space of the support plate is realized, worn scraps of a transmitting belt at the rear side of the support plate and carbon powder on a slide ring carbon brush are prevented from blowing up and flying around so as not to pollute the whole rack system, the rotation noise of a rotation component at the front side of the support plate is lowered, and the heat dissipation efficiency is improved. Through adoption of the structural design of the air duct, inlet air resistance in the heat dissipation structure can be reduced obviously, the heat dissipation efficiency of the heat dissipation structure is greatly improved, and the working noise of the heat dissipation structure is lowered remarkably.

The invention discloses an intelligent management monitoring system for convenient parking in urban areas. The intelligent management monitoring system comprises a sensing and induction system installed on a parking lot, an induction system installed on a vehicle and a big data server, wherein the big data server stores and analyzes parking lot information in an entire city area, and stores and analyzes vehicle and vehicle owner information. The intelligent management monitoring system provides data interface for combing parking information and map navigation, and provides data and interface for paying parking fees to a bank. Garages and parking lot information in the urban areas can be collected by the sensing and induction system and fed back to the big data server through a network. In this way, parking stall information in all parking lots in an urban area can be obtained. The parking information is pushed to map navigation in combination with the map navigation, so that a driver can rapidly find an appropriate parking place. Automatic parking charging can be realized by binding a parking stall and a vehicle one by one through the induction system on the vehicle.

The invention discloses a bionic underwater vehicle flapping wing propulsion device. An underwater vehicle comprises a drive motor assembly, a transmission gear set, a ball screw, a steering engine, asteering shaft, an adaptive under-actuated flexible wing framework, a single-sliding block and double-rocker mechanism, and a fixing seat, the drive motor assembly, the ball screw and the fixing seatare connected with an underwater vehicle body separately, the drive motor assembly is composed of a motor, a speed reducer and an encoder, the ball screw is composed of a screw rod, a screw nut and ascrew fixing seat, and an output shaft of the speed reducer is connected with a driving gear of the transmission gear set; a driven gear of the transmission gear set is connected with the screw rod of the ball screw, and the motor drives the screw rod to rotate through the transmission gear set. The bionic underwater vehicle flapping wing propulsion device has the advantages that the integral structure is provided with a front end swing and a rear end swing, the whole device has two degrees of freedom, and propulsion, turning, floating, submergence and other movements of the underwater vehicle can be achieved.

What is disclosed is a device for providing radiofrequency signal connections for users, wherein the device comprises a plurality of access points which transmit or receive radiofrequency signals in different predetermined radiofrequency bands and are each connected via a transmission and reception signal path to at least one shared transmitting and receiving antenna, filter means being provided in the transmission and reception signal paths respectively and isolating the radiofrequency bands sufficiently from one another and from predetermined mobile radio frequency bands.

The invention relates to an electromechanical cylinder lock that interacts with evaluation electronics for identifying access authorizations and has a housing that includes two opposing cylinder receptacles (12) in which each is rotatably accommodated A key-operated lock cylinder or a knob-shaped door handle shaft (11) connected in a rotationally fixed manner to the knob, wherein the lock cylinder and/or the knob-shaped shaft (11) is in particular connected to the bolt or to the actuating door lock The lock noses (13) of the lock lock work together, and when the key is engaged or the access authorization authentication is completed, the lock or connecting part (14) of the electromechanical transmission moves from the rest position into the effective position and produces the key or ball. Torsion-resistant connection between the door handle and the lock nose (13), characterized in that the lock nose (13) can be locked relative to the two lock cylinders or the two spherical door handles in the rest position of the locking or connecting piece (14) The shaft (11) rotates freely.

The invention discloses a plug-socket integrated connector with a board-to-board butting compatibility function. The connector comprises a plug, a socket, a box body, a movable plate and a plurality of guide columns, wherein the movable plate is used for correcting a mounting position between the plug and the socket; the guide columns are symmetrically distributed and are used for guiding correction of the position between the plug and the socket; the bottom end of the plug penetrates through the box body and then is fixedly connected with the socket, and the bottom end of the socket is connected to the interior of the movable plate in a plugging way; one ends of the guide columns are fixed on the two sides of the plug, and the other ends of the guide columns sequentially penetrate the box body and through holes in the two sides of the socket and then are connected to the two sides of the movable plate in the plugging way. The position correction between the plug and the socket is guided by using the guide columns, so that guidance can be carried out in advance when the plug is plugged into the socket; meanwhile, by adding the movable plate between the plug and the socket, the mounting position between two pieces of equipment and two modules can be automatically and quickly corrected, the phenomenon of misalignment caused by vertical shifting between the two pieces of equipment and the two modules is avoided, and the two pieces of equipment or the two modules can be seamlessly connected with each other without a cable.

A display driver (200) multiplexes gray-scale data captured by a data latch (300) and outputs a data signal to a comb-tooth distributed data line. The data latch (300) includes a gray-scale bus (310) to which the gray-scale data for first to third color components is supplied corresponding to the arrangement order of the data lines. A first data latch, a second data latch, a first shift register, a second shift register, a first clock signal line, and a second clock signal line are N multiplexed. A multiplexer (380) multiplexes N sets of gray-scale data captured by the first and second data latches. The display driver (200) outputs the data signal corresponding to first or second multiplexed data to a data signal supply line.

The invention relates to a steering electrohydraulic control system for a remote control loading machine. The steering electrohydraulic control system for the remote control loading machine comprises an oil tank, a steering metering pump, a pilot pump, a solenoid directional valve, a three-way pressure compensator, an overflow valve, a throttling valve, a shuttle valve, two hydraulic directional valves, two three-way solenoid proportional reducing valves and two steering oil cylinders. An inlet of the steering metering pump is connected with an oil outlet of the oil tank, the outlet of the steering metering pump is connected with a first oil inlet of the first hydraulic directional valve, the first hydraulic directional valve is respectively connected with the three-way pressure compensator and the two three-way solenoid proportional reducing valves, and the two three-way solenoid proportional reducing valves are connected with the second hydraulic directional valve, the shuttle valve and the two steering oil cylinders in sequence. The steering electrohydraulic control system for the remote control loading machine is stable in steering and free of impact and clamping stagnation phenomena, reduces the heat emitting amount and reduces waste of power of an engine, and thus the purposes of reducing oil consumption and saving energy are achieved finally.

The invention provides a camera module and an electronic device. The camera module comprises at least one lens, at least one light guide part, at least one photosensitive chip and a base. At least one lens is obliquely arranged on the base. At least one light guide part and at least one photosensitive chip are arranged in the base. At least one light guide part is used to adjust the angle of the light incident from at least one lens, so that the light is perpendicularly introduced onto at least one photosensitive chip. According to the invention, the lens is obliquely arranged on the base, so that the base can be obliquely arranged on the electronic device; the installation size of the bottom of the base is reduced; and the screen proportion of the electronic device is improved.

The invention provides a lock ring type synchronizer and a synchronizing method thereof. The synchronizer comprises gear hubs, slide sleeves, return springs, synchronous conical rings and jointed gear rings. The slide sleeves sleeve the gear hubs, the inner walls of the synchronous conical rings are provided with a plurality of locking bosses uniformly distributed, each locking boss is provided with a first locking slope, the side walls of the jointed gear rings are provided with annular bosses extending axially, the annular bosses are provided with locking grooves matched with the locking bosses on the inner walls of the synchronous conical rings, the locking grooves are provided with second locking slopes, the slide sleeves slide from one sides of the gear hubs to the jointed gear rings so as to push the synchronous conical rings and the jointed gear rings to be matched, and the synchronous conical rings are driven to overpass the jointed gear rings by the return springs, so that internal splines of the slide sleeves are meshed with outer splines of the jointed gear rings. The lock ring type synchronizer is compact in integral structure and small in axial size, and has larger friction radius than that of conventional lock ring synchronizers due to the fact that the slide sleeves are provided with frictional conical surfaces, that is, larger capacity of the synchronizer is achieved, and a transmission is higher in operation comfortableness and reliability and lower in cost.