71results about How to "Limit length" patented technology

The invention discloses an electronic cigarette case, which comprises a cigarette case main body, an electronic cigarette groove, a circuit control device and a power supply, wherein an opening is arranged at one end of the cigarette case; the electronic cigarette groove is arranged in the cigarette main body; the circuit control device is arranged in the cigarette case main body; the power supply is electrically connected with the circuit control device; a guide rail is arranged on the electronic cigarette groove and is connected with a slide block; the slide block is used for fixing electronic cigarettes; a first power device is arranged in the cigarette main body; a rotary shaft of the first power device is connected with the slide block; and a sterilization device is also installed in the cigarette main body. The electronic cigarette case provided by the invention has the effect of sterilizing the electronic cigarettes and controlling the electronic cigarettes to go up and down in an electric control way.

The invention relates to the field of testing technology of upper computers, and in particular relates to a multi-way waveform acquiring and displaying and data analyzing and processing system based on a universal serial. The system comprises a waveform acquiring and displaying part and a data analyzing and processing part; the system has a multi-threading framework; the waveform acquiring and displaying part is used for obtaining and processing multi-path waveform data uploaded by a lower computer from an RS232 universal serial interface of a PC (Personal Computer), and then displaying the multi-path waveform data in forms of text and oscillogram; and meanwhile, the data analyzing and processing part is used for acquiring, processing and displaying the waveform data, as well as displaying the continuous real-time variation of the waveform. The multi-way waveform acquiring and displaying and data analyzing and processing system has the advantages that a multi-way (4 ways at the maximum) waveform data real-time transmission and shunting displaying system based on the RS232 serial interface is achieved by using a simple and novel method on the PC in which a windows operating system runs; and moreover, the system also merges a data analyzing function, and therefore the system can be used for processing the waveform in each way through the spectrum analysis and a plurality of filtering algorithm methods.

The invention discloses an overlapping self-centering frictional energy-dissipating brace. The overlapping self-centering frictional energy-dissipating brace comprises an inner rectangular sleeve, an outer rectangular sleeve, a frictional energy-dissipating component, a first end plate, a second end plate and a pre-tension rod, wherein the frictional energy-dissipating component connects an inner sleeve bottom plate with an outer sleeve bottom plate, the first end plate is arranged in the inner sleeve, the second end plate is arranged in the outer sleeve, the pre-tension rod is arranged in the inner sleeve, and two ends of the pre-tension rod are anchored to the first end plate and the second end plate respectively. One part of the inner sleeve is inserted into the outer sleeve and overlaps with the outer sleeve, one end, inserted into the outer sleeve, of the inner sleeve contacts with the second end plate, and the first end plate contacts with one end of the outer sleeve. A top plate and the bottom plate at the non-overlapping end of the inner sleeve are connected with first connecting plates respectively, a top plate and the bottom plate at the non-overlapping end of the outer sleeve are connected with second connecting plates respectively, the first end plate contacts with inner sleeve push plates through a first end plate rubber pad, and the second end plate contacts with the inner sleeve push plates through a second end plate rubber pad.

The invention relates to the technical field of sludge treatment, and particularly relates to an anti-blocking aeration head. The anti-blocking aeration head comprises a cylinder body, a piston and areset spring, wherein the piston is arranged in the cylinder body and divides the cylinder body into a cavity A and a cavity B, the cavity A communicates with an air inlet hole of the cylinder body, and the reset spring is arranged in the cavity B; the anti-blocking aeration head further comprises a piston rod arranged in the cavity B, wherein a mounting hole used for installing the piston rod isformed in one end, opposite to the air inlet hole, of the cylinder body, one end of the piston rod is connected with the piston, and the other end of the piston rod penetrates through the mounting hole; and a blind hole channel is formed from one end of the piston to the other end of the piston rod, wherein the open end of the blind hole channel is located at one end where the cavity A is located,exhaust holes communicating with the blind hole channel are formed in the piston rod, and the exhaust holes are located in the mounting hole of the cylinder body. According to the anti-blocking aeration head, sludge can be effectively prevented from entering the exhaust holes, so that the aeration head is prevented from being blocked.

The glass-metal sealing process for vacuum heat collecting tube includes the following steps: pre-oxidizing the part of the sealing metal workpiece, pre-vitrifying the part of the sealing metal workpiece, and sealing the glass and the pre-vitrified part of the sealing metal workpiece through heating. The glass-metal sealing process of the present invention has greatly lowered sealing temperature, greatly shortened sealing time, raised sealing quality, simplified sealing equipment and lowered production cost.

The invention discloses a contact system of a circuit breaker; the contact system comprises a contact support mechanism; the front end of the contact support mechanism is connected with a spring bracket; the back of the contact support mechanism is connected with a linkage mechanism; a movable contact unit is arranged on the front side of the contact terminal support mechanism; the back of the front end of the movable contact unit is in contact with primary and secondary springs in the spring bracket; and a contact blade on the front side of the front end of the movable contact unit is in contact connection with a static contact unit. By adopting the structure, the increasing of the length of a contact line of the movable and static contacts is realized, the heating radiating area is increased, the electric stability of the circuit breaker is improved and the purposes of reducing temperature rising and improving short-time endurance capacity are achieved; meanwhile, the breaking capacity and the short-time endurance capacity of the short-circuit current of the circuit breaker are improved, the working over-travel of the contact system is extended and the electrical endurance of the circuit breaker is prolonged.

A method for delaminating PIM-SM domain includes using edge node as candidate RP of multicast set served by local domain in global domain and using it as candidate RP of multicast set served by global domain in local domain, repositioning access of said RP in global domain to RP of said multicast set in local domain on edge node when edge node in global domain becomes RP of multicast set served by local domain and repositioning access of said RP in local domain to RP of said multicast set in global domain on edge node when edge node in local domain becomes RP of multicast set served by global domain.

The invention discloses a spot coupling and conversion device. The spot coupling and conversion device comprises a semiconductor laser, a lens, a fiber core insert, and a single-mode fiber, which are sequentially connected and coupled in series, wherein the fiber core insert is a multi-mode fiber core insert. The multi-mode fiber core insert used as the substitute of the existing single-mode fiber core insert has a larger optical aperture, which can improve the tolerance degree when the beam and the optical fiber are mismatched so as to ensure constant output power when the coupling of the beam and the fiber core insert has little mismatch. Meanwhile, the length of the multi-mode fiber core insert is limited to ensure the minimum coupling loss between the multi-mode fiber core insert and the single-mode fiber. The spot coupling and conversion device can improve the yield, save the energy and lower the cost.

An apparatus and method for treating a mammal or other organism having a heart and peripheral vascular system to relieve cardiac stress, said organism having a pulse rate and systolic blood pressure resulting from cardiac activity, the method and apparatus comprising the steps of: measuring heart rhythm, generating pressure pulses in the peripheral vasculature by non-invasive or invasive means in counter-pulse mode and synchronized with the heart rhythm, and changing at least one parameter of an input system that generates said pressure pulses to optimally reduce said pulse rate and the systolic blood pressure, thereby ultimately reducing the cardiac workload, which is a parameter of the pulse rate and the systolic blood pressure.

The invention discloses a circular arc cutting tool with a nano cutter head, which comprises a fixed base, four corners of the fixed base are provided with pressure columns for fixing a plate to be cut, and a limit is fixed between the pressure columns on one side. plate, a fixed column is fixed on the fixed base, the fixed column is provided with a first horizontal connecting arm arranged horizontally, the end of the first horizontal connecting arm is connected with a second horizontal connecting arm through a movable rotating shaft, and the end of the second horizontal connecting arm is A vertical downward cutting mechanism is installed at the end, and the cutting mechanism includes a downward pressing screw rod, a fixed sleeve and a nano cutter head. The fixed sleeve is fixed at the end of the second horizontal connecting arm, and the downward pressing screw rod is screwed into the fixed sleeve. And through the fixing sleeve, the nano cutter head is fixed on the lower end of the pressing screw rod, and the nano cutter head is used for arc cutting the plate to be cut. The invention can limit the length of the cutting arc, which is convenient for adjustment, and is provided with a nanometer cutter head, which is wear-resistant, does not need to be replaced, and has a long service life.

The invention relates to a bending die. The bending die comprises a convex die, concave dies which are correspondingly distributed at two sides of the convex die, a convex die fixing device, combinedconcave die fixing devices, a spring-back stopping element and a guide device. According to the bending die, the spring-back stopping element is used for controlling the spring-back angle of a workingworkpiece after forming, and the spring-back stopping element is positioned right above a positon where a horizontal working part of each concave die is in transition connection with a second circular arc working part, and thus the bending workpiece can be formed in one time, and as a result, the defect of modifying and debugging the bending workpiece in a plurality of times after forming can beavoided; an adjusting gasket is arranged between each concave die and the corresponding combined concave die fixing device, and thus the bending part can be formed by different forming angles withoutintegrally replacing the die, and as a result, the cost is decreased, and an existing die is utilized to the maximum; the combined concave die fixing devices are adopted, so that the overall weight ofthe die is decreased, and moreover, the die is conveniently and quickly mounted and dismounted.

The invention relates to a watt-hour meter calibration device and a method outputting current under 1mA, which are used to accurately output 0.3mA test current during start test of a tested watt-hour meter in the process of alternating-current watt-hour meter calibration. The device comprises a current power source, a to-be-detected meter position, a current transformer, and a double-pole double-throw relay. The current power source, the primary side of the current transformer, the secondary side of the current transformer, the double-pole double-throw relay and the to-be-detected meter position are connected in sequence. The output current of the current power source is 180mA, and the magnification range of the current transformer is 180-600. Compared with the prior art, the device and the method are advantageous in that the device and the method are applicable to start test, the electromagnetic noise is reduced, the current is stable, and the like.

The invention discloses an efficient MSK direct spread communication detecting method. The method comprises the steps that firstly, a non-cooperative receiver searches for, monitors and samples related frequency bands, an internal high-speed processing chip carries out segmentation self-correlation and square operation on sampling data, the processed sampling data are accumulated to reduce the adverse effect of noise, and the value of a symbol period Ts is estimated by searching for peak values of an accumulation sequence and calculating the interval between adjacent peak values; secondly, delay multiplying, high pass, fast Fourier transform and other processing are carried out on a receiving signal to estimate the time width Tc of an MSK spread spectrum system chip; thirdly, on the basis of the analysis and process, the Tc delay multiplying, low pass, Hilbert transform, Ts window sliding observing and other analyzing processing are carried out on the receiving signal, and a spread spectrum pseudorandom sequence of the spread spectrum system can be estimated. The needed operations are easy to process, detecting speed is high, and the method can meet the requirement for non-cooperative communication detecting.

The invention discloses a medical endoscope and an assembly thereof. The medical endoscope comprises a detection apparatus, a connecting tube, a clamping member, a drying apparatus and a display device, wherein one end of the detection apparatus is connected with the connecting tube; one end, away from the detection apparatus, of the connecting tube successively passes through the clamping memberand the drying apparatus to be connected with the display device; the detection apparatus comprises a protective shell, springs, a probe and LED lamps; two groups of movable plates are arranged on aninner wall of the protective shell; and the probe is arranged between the two groups of movable plates, the drying apparatus comprises a box body, ultraviolet lamp tubes, a fan and a waste liquid box,the ultraviolet lamp tubes and the fan are fixed in one group of chamber of the box body, two groups of buttons and absorbent cotton are arranged in the other group of chamber, and the box body is communicated with the waste liquid box by virtue of a hose. The medical endoscope and the assembly thereof can effectively protect the probe, are convenient for adjusting the position of the connectingtube in the body, and can dry and sterilize the connecting tube.

The invention provides an airborne wireless channel simulator for typhoon detection application, which is realized based on CPU+FPGA architecture, and belongs to the field of wireless communication. The airborne wireless channel simulator comprises an initialization configuration part, a parameter calculation part, a data communication part and a channel generation part, wherein the parameter calculation part comprises a system initialization module, a transmitter state module, a receiver state module, a channel parameter calculation module and a channel parameter generation module; the data communication part comprises a data issuing module, an interrupt control module, a data receiving module and a data analysis and storage module; and the channel generation part comprises a channel generation module, a chip management module and an interrupt generation module. The airborne wireless channel simulator provided by the invention can realize simulation of multiple motion modes of a transmitter and an airborne receiver on a sonde in a typhoon environment, provides a channel environment as close as possible to reality, is based on modular development, has good upgrade and expansion space, and is wide in application range.

The invention discloses a novel camshaft bearing seat which comprises an upper bearing seat framework (1), an upper bearing seat (8) arranged on the upper bearing seat framework (1), a cylinder cover (2), a lower bearing seat (9) arranged on the cylinder cover (2), bearing seat tightening bolts (4) for fixing the upper bearing seat (8) and the lower bearing seat (9), a first bearing upper bearing seat (3), a first bearing lower bearing seat (6) and a first bearing seat tightening bolt (10), wherein the first bearing upper bearing seat (3) is arranged on the upper bearing seat framework (1), and the first bearing lower bearing seat (6) is fixed on the first bearing upper bearing seat (3) through the first bearing seat tightening bolt (10). The novel camshaft bearing seat can abandon the structural design of arranging the bearing seats and the cylinder cover into a whole through the way of arranging the camshaft lower bearing seat alone, thereby effectively limiting the length of the cylinder cover, reducing the weight of the cylinder cover and being conductive to reducing the weight of an engine.

A clamp specially used for a low-frequency electro-hydraulic servo fatigue testing machine is disclosed. The clamp comprises a clamping head (1), a clamping cylinder (2) and a jacket (3). The external cylindrical diameter of the jacket is 1 mm smaller than the external cylindrical diameter of the clamping cylinder, so that the clamp is provided with directivity and is convenient to install. The surface of the clamping head is evenly provided with four open slots by adopting the 90 degrees as a boundary, and therefore the clamp has elasticity, and a steel wire in the clamp can be tightly clamped when the clamp clamps the steel wire. The clamping head and the cylinder are provided with through holes and the jacket is free of through holes, thus limiting the length of the steel wire extending inside so as to perform spacing. The clamp has characteristics of simple configuration, using convenience and low manufacturing cost.

The invention discloses a novel insect expelling lamp which comprises a lamp base, wherein heat-dissipation fins are fixed on the lamp base; a lamp cover is buckled on the lower end of the lamp base; a light source module is installed between the lamp base and the lamp cover; a rechargeable battery electrically connected to the light source module is installed on the lamp base; the rechargeable battery is electrically connected to an ultrasonic generator and a buzzer; the ultrasonic generator and the buzzer are separately fixed on the lamp base; and a waterproof cover is also buckled on the lamp base, and a hook for hanging is installed on the top part of the waterproof cover. By the ultrasonic generator and the buzzer, mosquitoes and flies can be expelled effectively. Use of the lamp is safe. In addition, the ultrasonic generator and the buzzer are driven by the rechargeable battery, so that the lamp can be used and carried conveniently and gets rid of limitations from socket rows and a wire length; and the waterproof cover can prevent rainwater, so that the lamp can be used in rainy days.

The invention aims to solve the problems of low algorithm efficiency, local optimal path and the like in a search-based path-finding algorithm in a rapidly changing dynamic complex scene. On the basis of a jump point search (JPS) algorithm, a dynamic jump point search (DJPS) path planning method in a dynamic scene is provided, and on the basis of the JPS algorithm, the dynamic jump point search (DJPS) path planning method in the dynamic scene is provided. The DJPS algorithm is used for coping with obstacle changes in different scenes, a set of complete'jump point-path updating scheme 'is designed, meanwhile, a new'near path' possibly occurring during obstacle updating is explored, and the obtained path is optimized to ensure the optimality of the path. In order to verify the effectiveness of the DJPS algorithm, path updating experiments under various complex maps are designed. According to the method, obstacle detection is only performed on the original path and the nodes near the path, and the search length during path finding each time is limited by utilizing jump points stored in OpenList and CloseList in the original algorithm and'abandoned paths' which are obtained by mutual connection and do not finish path finding, so that the time complexity and the space complexity of the algorithm are reduced, and the path finding efficiency is improved. And a jump point searching scheme in a dynamic scene is realized.

The present invention relates to an apparatus for foam dyeing hair, comprising: a housing comprising a front housing and a rear housing coupled to the back surface of the front housing: a brush portion coupled to a predetermined area of the front housing and comprising a plurality of brushes; an application module provided at one side of the brush portion so as to discharge a hair dye; an operation portion provided at one side of the housing, operated by a user so as to allow a hair dye to be applied by releasing the pressure of a hair dye container, and comprising an integrated guide portion coupled to a guide groove provided inside the housing so as to guide the mobile range of operation; and a mesh filter which comes into contact with the output terminal of the hair dye container so as to move as one body together with the operation portion, and foams the hair dye when the pressure is released, wherein the housing is coupled to the hair dye container so as to receive the hair dye, and has a predetermined linear curvature with respect to the longitudinal direction of the hair dye container.

The invention relates to an umbrella-shaped ice blocking device preventing conductor beneath interphase short circuit caused by de-icing of a conductor above and a mounting method thereof. The umbrella-shaped ice blocking device is composed of a mandrel, an umbrella skirt, a lap joint piece, a plastic rivet and an open heat-shrinkable sleeve. According to the device, the length of an ice layer which is possibly formed by the conductor above a line corridor or in a substation can be effectively limited; and conductor beneath interphase short circuit caused by insufficient conductor beneath interphase insulation distance or long icicles which are formed by the molten ice layer, fall and are in direct lap joint with the conductor beneath interphase is prevented.

The invention discloses a medical pediatric liquid medicine atomization device. The pediatric liquid medicine atomization device comprises a bottom plate, wherein first supporting rods are fixedly arranged at the four corners of the bottom plate correspondingly; a partition plate is fixedly arranged on the first supporting rods; second supporting rods are fixedly arranged at the four corners of the partition plate correspondingly; a top plate is fixedly arranged on the second supporting rods; a compressed air storage tank is fixedly arranged on the bottom plate; and an air filtering device isfixedly arranged on the partition plate. The medical pediatric liquid medicine atomization device has the advantages that liquid medicine in a spraying pipe can be heated through hot water in a watertank in winter, so that discomfort of children due to relatively low temperature of the liquid medicine is avoided, cold and fever of the children due to liquid medicine suction are not easily caused,liquid medicine in a liquid medicine bottle can be stirred, the liquid medicine is evenly mixed. Therefore, the medicine effect of the liquid medicine can be improved, and the operation is convenient.

The invention discloses a machining process route knowledge mining method and system, and the method comprises the steps: representing a machining process card of a part in a picture form, and obtaining process data corresponding to the machining process card through adoption of an OCR (Optical Character Recognition) method; converting a process route data combination in the acquired process data into a process route data sequence form; taking the converted process route data in the sequence form of the parts of the same category as input, performing recursive mining based on an improved PrefixSpan method to obtain all frequent step sequences, and determining the occurrence probability of subsequent step sequences according to the frequent step sequences and corresponding frequencies; and outputting the subsequent process step sequence and the corresponding probability P to determine a machining process route. According to the method, acquisition of process data and mining of machining process route knowledge are realized, a technologist can be effectively helped to select a proper typical process route at the initial stage of process route design, and guidance is provided for process step modification when the process route is modified.