71results about How to "Simplify mechanical design" patented technology

An injection device that is used with a syringe, wherein the injection needle of the syringe is initially introduced into the skin and the injection fluid is injected afterwards. The injection device is essentially driven and controlled by a control sleeve (6) which can be displaced and/or rotated in relation to the housing (7) and which can be moved between a closing and functional position (P1) and an open and safety position (P2). In the closing and functional position, the control sleeve prevents access to the syringe and activates a release device for the injection process. In the open and safety position, a syringe (1) can be removed or inserted. A plurality of components carrying out the injection process (a slide (2) in which the syringe (1) is placed and a plunger (4) that impinges upon the syringe piston) are moved or controlled depending on the movement and position of the control sleeve or supported (for example, an ejection device for the syringe or a signaling device informing that injection has been completed). The device enables full-automatic injection that can be reliably carried out by patients themselves with few handling procedures.

An injection device for holding and activating a two-chamber ampulla has components whose relative movement causes the pistons of the two-chamber ampulla to be moved in order to mix the substances, as well as devices for injecting the product which is mixed in this way. For this purpose, a receptacle (103) into which the two-chamber ampulla (111) can be inserted and secured is held in a housing (101), and the receptacle (103) can be displaced by means of a carriage (108). A tappet (104) which acts on the pistons (111A, 111B) is movably held in the receptacle (103). A traction cable (114) which is deflected by means of a roller (109) which is mounted on the carriage (108) and one of whose ends is connected to the receptacle (103) and the other end of which is connected to a tension spring (110) which is held on the housing (101) is provided in order to carry out a mixing stroke, insertion stroke, injection stroke and a return stroke. Devices which can be activated automatically and/or manually between the housing (101), receptacle (103), tappet (104) and carriage (108) control their alternating coupling to the traction cable (114) and thus the sequence of the mixing stroke, insertion stroke, injection stroke and return stroke. The invention thus provides a partially automatic injection device for two-chamber ampullas whose handling comfort and safety for the patient are substantially improved.

A video endoscopic device has a camera head and two parallel optical arrangements, each with optical components, arranged coaxially with one another along a common first optical axis of the optical components of a respective optical arrangement and in the interior of an endoscope shaft. The optical components transmit an optical image from a distal end of the respective optical arrangement to a proximal end of the respective optical arrangement. The camera head contains at least one image sensor comprising a recording plane and at least two projection objectives, each having a second optical axis and arranged to project an image onto the image sensor. The optical arrangements comprise a collimating optical unit for generating an at least approximately parallel beam path at the outlet of the respective optical arrangement. The respective collimating optical unit has a third optical axis arranged coaxially with the optical components of the optical arrangements.

The invention provides a tilting plate cutter storage servo absolute value motor control method. Because a absolute position encoder motor, after a servo driving system is power off, the position of the servo motor is still memorized, even if the motor position is changed, corresponding encoder data are changed as follow. Initialization detection is conducted on the servo motor after power on, themotor position is read and compared with a target position before power on, if the read motor position during power on is not in the target position range, the motor is triggered to operate to the target position before power off, when the operation is in place, the cutter number coding and a cutter replacement finish signal are outputted. The method has the advantages of simple structure and high reliability.

The invention provides a non-excavation correction method and apparatus of pipeline center line deviation after pipe-jacking construction. The apparatus comprises a front case, a back case and an elevation adjusting apparatus. Both the front cast and the back case are cylindrical objects. The front part of the front case is connected with a deviation pipeline to be corrected, and a supporting opening is made in the back part of the front case. The front part of the back case is provided with a fixing stand that protrudes out from the end face, the back part of the back case is connected with the to-be-corrected pipeline that is to be connected, and the back case is connected with the front cast by enabling the fixing stand stretch into the supporting opening. The bottom of the elevation adjusting apparatus is placed in the front cast, and the top is connected with the fixing stand that stretches into the supporting opening. The invention further provides a pipe-jacking construction method applied to the center line deviation correction apparatus. The apparatus and method provided in the above scheme can solve the deviation problem of a pipeline center line relative to the designed center line, and the scheme has the advantages of simple mechanical design, low cost and less resource consumption.

The invention discloses a method and instrument for controllable source neutron logging during drilling. The method comprises the steps that a pulse neutron source on a drill collar is started and quantitative high-energy neutrons are emitted to a stratum in a pulse mode; the number of thermal neutrons with the speed reduced by the stratum is measured through a long spacing detector and a short spacing detector which are arranged on the drill collar respectively, wherein the thermal neutrons are scattered back to a well hole; according to the number, measured through the two spacing detectors, of the thermal neutrons, the macroscopic capture cross section sigma of the thermal neutrons and the porosity phi of the stratum are obtained; the stratum water saturation Sw is obtained according to the macroscopic capture cross section of the thermal neutrons and the porosity phi. The instrument comprises the pulse neutron source, a detection unit, a signal processing and data analyzing unit and a power module used for supplying power for the detection unit and the signal processing and data analyzing unit. The thermal neutrons are detected through the long spacing <3>He thermal neutron detector and the short spacing <3>He thermal neutron detector, two sets of parameters including the porosity and the macroscopic capture cross section of the thermal neutrons and are obtained, and therefore the measurement of the water saturation and the porosity of the stratum with a relatively low degree of mineralization is achieved. Due to the use of the pulse neutron source, damage, caused by a radioactive source, to human and the environment is eliminated.

The invention belongs to the technical field of microimaging, in particular to a lighting path of a plate lighting microscope and provides a lighting system of a plate lighting microscope with variable thickness and length of a plate. The system successively comprises a laser light source, a four-component mechanical compensation afocal zooming beam expanding system of a full spherical mirror, a cylindrical lens and a microobjective arranged along the optical axis from the object side to the image side; light emitted by the laser light source changes in aperture of a laser beam by means of theafocal zooming beam expanding system and then passes through the cylindrical lens rotating at 90 degrees by taking the optical axis as the rotating axis to form the plate light. The plate light undergoes subduction of spherical aberration generated by the afocal zooming beam expanding system and the cylindrical lens through a spherical aberration subduction microobjective, and the light intensityof the whole plate is more uniform; the plate lighting microscope can be used for observing biological samples in a certain dimensional range under the circumstance of not replacing the plate lighting system.

The invention relates to a rocking bed, and in particular to a pedal-type rocking bed device. The invention aims at solving the technical problem of providing the pedal-type rocking bed device. In order to solve the technical problem, the pedal-type rocking bed device provided by the invention comprises a bottom bracket, a large rocking seat I, a rocking rod I, a large rocking seat II, a rocking rod II, a sliding block, a long nut I, a screw rod, a long nut II, a connecting rod, a small chain plate and the like; the large rocking seat I and the large rocking seat II are welded on the bottom bracket; the large rocking seat I is arranged at the right side of the large rocking seat II; the rocking rod I and the large rocking seat I are movably connected; the rocking rod II and the large rocking seat II are movably connected; a straight groove is formed in the rocking rod II; the sliding block is arranged on the straight groove; the long nut I is welded on the sliding block; and the screw rod and the long nut I are matched. With the application of the pedal-type rocking bed device provided by the invention, a function of conducting a pedal motion and caring a baby simultaneously can be achieved.

The invention discloses an automatic wire feeding device with a fault self-diagnostic function and a diagnostic method. The automatic wire feeding device with the fault self-diagnostic function comprises an automatic wire feeding device, an alarm device and a control unit; the automatic wire feeding device comprises a base, a wire feeding guide pipe, a spring, a spring fixing cavity, a gear, a wire feeding stepping motor, a driven wheel, a movable bottom plate, a cross beam, a long bolt and a wire winding wheel; the wire feeding guide pipe is relatively fixed to the spring, and the spring fixing cavity is fixed at the bottom of the base; the gear is located at the output shaft of the stepping motor, the driven wheel and the cross beam are located on the movable bottom plate, and the gear is matched with the driven wheel to clamp wire-shaped materials; the long bolt abuts against the cross beam, and the long bolt is rotated to enable the bottom plate to slide left and right; the windingwheel is fixed at the top end of the base through a support; the alarm device comprises two micro-switches and two acousto-optic alarms, the micro-switches detect the wire shortage and the wire blockage respectively, and the alarms are used for giving out alarms of corresponding faults; and the control unit is used for circularly detecting the states of the two micro-switches in real time, and the corresponding alarms are started when faults occur.

The invention relates to a focusing optical system (20) for material machining with laser radiation. The system includes a collimator optical device (21) for collimating a divergent working laser beam(121) and a focusing optical device (22) for focusing a working laser beam (12) onto a workpiece (14) to be machined, wherein the collimator optical device (21) comprises a first moving lens or lensgroup (211) having a positive focal length for focusing a working laser beam source (18) into a virtual intermediate focus, and a second moving lens or lens group (212) having a negative focal lengthfor focusing the virtual intermediate focus to infinity. A laser machining head (1) with a housing (10) is also provided, and a working laser beam (12) can be guided to pass through the housing. The focusing optical system (20) according to the invention functions to generate a working focus (15).

The invention discloses a circulating fluidized bed combustion device with an internal double-inlet cyclone separator. The combustion device comprises a furnace chamber body (1), the double-inlet cyclone separator (2), a refeed downcomer (3) and a gas-water separator (10), wherein the inner wall of the vertically arranged furnace chamber body (1) is provided with a water wall; the furnace chamber body (1) comprises a furnace chamber dense-phase area (A), a furnace chamber lifting area (B) and a furnace chamber separating area (C) that are sequentially arranged from the bottom to up; the double-inlet cyclone separator (2) is coaxially arranged with a bed body in the furnace chamber separating area (C); the upper part of the flue gas inlet of the double-inlet cyclone separator (2) is arranged at the upper part of the furnace chamber separating area (C). According to the invention, gas-solid separating efficiency is improved, heat loss is reduced and boiler heat efficiency is improved.

A system for determining an analyte in a body fluid includes a magazine comprising two partial magazines, one including chambers containing analysis elements having a sample contact zone and a reagent system containing a reagent, whose reaction with the body fluid results in a change of a variable, and another including chambers containing puncturing elements having a tip having a capillary channel, which forms a fluid connection between the tip and a sample transfer zone of the puncturing element. The system may also include an analysis instrument having a puncturing drive for driving a puncturing element on a movement path, a mounting for receiving the magazine such that one chamber of the magazine at a time is located in a functional position, in which a puncturing element in the chamber can be moved by the puncturing drive, and a measuring and evaluation apparatus for measuring the change of the variable.

The invention discloses an active security check instrument based on a terahertz and millimeter wave arc-shaped antenna array and belongs to the technical field of security check instruments. The active security check instrument comprises a structural assembly, an imaging processing assembly, a servo driving assembly and a connecting assembly; the structural assembly comprises a top frame, a bottom frame and at least four support columns; every two support columns are symmetrically arranged. When the active security check instrument based on the terahertz and millimeter wave arc-shaped antennaarray is compared with the terahertz and millimeter wave human body security inspection equipment adopting a plane scanning mode, a horizontal direction angle covered by the arc-shaped antenna arrayis large enough, so that detection blind areas on the two sides of a human body during human body security inspection are avoided; when the active security check instrument based on a terahertz and millimeter wave arc-shaped antenna array is compared with terahertz and millimeter wave human body security inspection equipment adopting a cylindrical scanning mode, the number of transceiving antennaunits is reduced, the cost and weight of the instrument are reduced, and the instrument better conforms to the ellipsoidal appearance of the human body; and meanwhile, a first terahertz/millimeter wave band transceiver and a second terahertz/millimeter wave band transceiver do linear motion, and while, such transceivers do circular motion in cylindrical scanning equipment, and therefore, the mechanical design of the instrument is simpler, and the stability of the system is higher.

A rotating power transformer has a stationary and a rotating part. At least one of these parts comprises a plurality of transformer segments which are preferably of plastic material. Rectangular shaped soft magnetic cores are held with within the transformer segments together with at least one winding located in the soft magnetic cores. This allows for a simple and efficient assembly of the rotating power transformer.

The invention relates to a panel detection device used in the manufacture field of flat-panel displays and includes a part for taking up and down and a detection part, wherein, the part for taking up and down is arranged with a reading and cleaning module which comprises a reading and cleaning unit, the reading and cleaning unit comprises a code reading mechanism and a cleaning mechanism, the code reading mechanism is used to read codes on a panel to be detected, and the cleaning mechanism is used to clean metal electrode on the panel to be detected; a first transport mechanism which is used to drive the reading and cleaning unit to move along a first direction; and a second transport mechanism which is used to drive the reading and cleaning unit and the first transport mechanism to move along a second direction which is vertical to the first direction.

The invention relates to the technical field of electric vehicle warning tone systems, in particular to an electric vehicle low speed warning tone system based on a vehicle-mounted acoustic navigationsystem. The electric vehicle low speed warning tone system comprises a CAN circuit, an MCU circuit and a DSP circuit; the CAN circuit is used for real-time acquisition of an electric vehicle traveling speed, the MCU circuit is used for determining that when the driving speed is lower than preset speed, a control signal is output, and the DSP circuit performs audio decoding processing on pre-stored warning tone data according to the control signal, and outputs a warning audio signal. According to the electric vehicle low speed warning tone system based on the vehicle-mounted acoustic navigation system, the electric vehicle low speed warning tone system is integrated into a conventional vehicle-mounted acoustic navigation system, compared with an existing independently arranged low speed warning tone system, the integration level is higher, cost is lower, complexity in system design is reduced, and more energy conservation is achieved.

The invention relates to a mode body used for PET imaging system detector normalization correction, and relates to the technical field of medical imaging. The mode body comprises a cylinder, the cylinder and a PET detector are coaxial in the axial direction, spiral grooves are formed in the outer surface of the cylinder in an equal-distance mode, guide pipes which are wound outside the cylinder in an equal-distance mode are arranged in each spiral groove, and opening ends are arranged at the two ends of each guide pipe respectively. According to the mode body, on one hand, an even stick source which is expensive does not need to be customized; on the other hand, the mechanical design requirement is simplified, and the requirement that all detection units are evenly irradiated in normalization correction is easily met.

The invention discloses a device and a method for preparing propylene oxide. The device sequentially comprises a bubble tower slurry column reactor, a settling separation unit and a stirred tank slurry column reactor. According to the method, the bubble tower slurry column reactor and the stirred tank slurry column reactor are combined for epoxidation reaction under the reaction conditions of reaction pressure of 0.1 to 0.6MPa and reaction temperature of 40 to 70 DEG C. Local hot spots generated by strong reaction heat in a reaction process can be effectively avoided, and generation of a byproduct by back mixing of a liquid phase can also be effectively avoided. The advantages of high hydrogen peroxide conversion rate (more than or equal to 99 percent), high hydrogen peroxide effective utilization rate (more than or equal to 95 percent) and high propylene oxide product selectivity (more than or equal to 98 percent) are achieved.

The invention relates to a lancing device (1) for taking blood samples. The device comprises a housing (2), an axially displaceable lancet holder element (32) for holding a lancet (12), a driving unit (30) including at least one piercing spring element (31) and used for driving the axially displaceable lancet holder element (32), and a tension carrying element (26) that can be fixed to a tension position (36) and is used for tensioning the piercing spring element (31). According to the invention, the fixable tension carrying element (26) is temporarily and axially fixed to the tension position (36) via a lock device (35) that can be locked to the axially displaceable lancet holder element (32).

The invention relates to a DC electrical source power system which is used for tilting converter accident and promoting oxygen sublance accident. The power system adopts an AC frequency conversion speed regulating device and is connected with a rectifier to convert the alternating current into direct current by a public DC bus; a plurality of inverters are hung under the DC bus and respectively drive motors connected with the inverters. A DC electrical source is connected with the DC bus of the inverters by a high-power diode. When the electrical source is normal, the DC electrical source does not discharge towards the DC bus; when the normal electrical source is in failure, the voltage of the DC bus is reduced to be lower than the design voltage of the DC electrical source, the diode is conducted, and the DC electrical source discharges towards the DC bus; when the voltage of the DC bus is maintained to be constant, the inverters still work normally, thus tilting converter accident and promoting oxygen sublance accident. The invention adopts the DC electrical source as a power source when the accidents happen, so as to simplify the mechanical design, lower the price and reduce the maintaining workload.

The present invention describes a fiber based milling device for milling particles. The fiber based milling device includes a milling chamber with an inlet and an outlet, and also at least one fiber assembly. The fiber assembly contacts a particle to be milled in the milling chamber. Also disclosed is a method for milling particles by contacting the particles to be milled with a fiber assembly.

The invention relates to a device for improving working frequency of lamp pump laser amplifiers. The device comprises a plurality of lamp pump laser amplifiers, a fixed reflection mirror and a rotary reflection mirror, wherein the rotary reflection mirror is in light connection with the fixed reflection mirror by rotation; the rotary reflection mirror receives input light, and reflects the light to the fixed reflection mirror by rotation; the fixed reflection mirror is located in front of the lamp pump laser amplifiers; the fixed reflection mirror receives the reflected light from the rotary reflection mirror, and reflects the light to a corresponding lamp pump laser amplifier; and by the matching of the rotary reflection mirror and the fixed reflection mirror, the laser sequentially enters the plurality of lamp pump laser amplifiers so as to improve the working frequency. According to the device and method provided by the invention, the lamp pump laser amplifiers can be moved without complicated mechanical design and ponderous rotating wheel type devices like the traditional method, thus the mechanical design is simplified, mechanical devices are reduced, the occupied space of the integral device is small, and the cost is lowered due to reduction of mechanical material use.