24 results about "Ring mode" patented technology

The utility model relates to an IEPE type vibration sensor, and specifically relates to an IEPE type vibration sensor comprising a pedestal; the shell pipe is fixedly connected to the outer side of the top end of the base; the core body assembly is arranged on the inner side of the shell tube, is connected with the base through an insulation pad, and is used for converting the vibration signal into a charge signal; the charge amplification assembly is connected with the output end of the core body assembly; the connector is connected with the other end of the shell tube; according to the utility model, the manufacturing is simple and fast, the design is realized by adopting a pressing ring mode, the yield is high, the cost is low, the applicable working environment temperature range is wide, the design of a double-layer shielding structure is realized, the anti-interference capability is strong, and the insulation and voltage endurance capability is strong.

The application discloses a coreless ring-shaped heat uniformizing plate, which comprises two housings arranged in an upper and lower mode, the two housings are connected to form a sealed cavity, a central region of the sealed cavity is an evaporation region, and a surrounding region of the sealed cavity is a condensation heat exchange region; a plurality of groove structures are arranged in a ring mode in the sealed cavity, a unidirectional valve system is arranged between two adjacent groove structures, an inlet of the unidirectional valve system is communicated with a tail end of a previous-stage groove structure located in the condensation heat exchange region, and an outlet of the unidirectional valve system is communicated with a head end of a next-stage groove structure located in the evaporation region, so that liquid working medium of the previous-stage groove structure flows to the next-stage groove structure, the groove structures are sequentially connected in a head-to-tail mode through the adjacent unidirectional valve systems, and an internal flow channel located in the sealed cavity is formed to supply unidirectional circulation of working medium. The application can solve the problems of manufacturing difficulty, insufficient capillary force, increased flow resistance and low heat transfer limit caused by a liquid absorbing core of a traditional heat uniformizing plate.

The invention discloses a rapid energy dissipation protection system and method for TBM tunnel rockburst under high ground stress. The open type TBM tunnel is located in an incomplete supporting area in the front supporting operation L1 area. A steel arch frame is installed in a surrounding rock exposed area behind a shield, and the steel arch frame is arranged in a ring mode; a high-toughness energy dissipation net is laid on the surface of the steel arch frame, the high-toughness energy dissipation net is arranged between a surrounding rock exposed area and a guniting bridge in the longitudinal direction of the tunnel, and the annular arrangement range of the high-toughness energy dissipation net is an arch protection area; and the high-toughness energy dissipation net is fixed on the steel arch frame through a plurality of door-shaped clamps. The temporary energy dissipation net and the permanent steel frame are connected and formed, the energy dissipation net is circularly and inversely used for construction, and safe construction of the tunnel in an unfavorable geological section is guaranteed.

The utility model provides a dismounting and mounting structure for a vertical multi-stage pump opening ring of a PDH device, and relates to the technical field of multi-stage pumps. The structure comprises a placing hole, the placing hole is formed in the center of the pump body, and the peripheral side of the wear ring is arranged in the placing hole in a matched mode; the two sets of threaded holes are symmetrically formed in the wear ring and the pump body and located in the connecting position of the wear ring and the pump body, and fastening bolts are installed in the threaded holes. A plurality of dismounting holes are formed in the impeller ring and the pump body in the circumferential direction and located in the connecting position of the impeller ring and the pump body, dismounting bolts are screwed into all the dismounting holes, and the impeller ring is ejected through threads of all the dismounting bolts; the dismounting hole comprises a first half hole, a second half hole and a third half hole, wherein the first half hole is axially formed in the pump body and is a blind hole; the second half-open hole is axially formed in the peripheral side of the wear ring and corresponds to the first half-open hole, and threads are arranged on the inner side wall of the second half-open hole. In the application, the wear ring dismounting mode is simple, the maintenance process is simplified, and the wear ring is effectively prevented from being damaged.

The application discloses a high-bearing broadband vibration isolation device and system based on a spider-web-imitating metamaterial structure, which comprises a central bearing pedestal, a radial bearing assembly and a circumferential vibration suppression structure assembly; the radial bearing assembly comprises a plurality of radial support structures arranged in a ring direction periodically around the central bearing pedestal; the circumferential vibration suppression structure assembly is arranged in a net ring mode along the central bearing pedestal, and the circumference increases in a preset mode; each circumferential vibration suppression structure assembly comprises a plurality of linear strip-shaped vibration suppression units; the two ends of each linear strip-shaped vibration suppression unit are connected with two adjacent radial support structures respectively, and the connecting points are located between the first end and the second end of the corresponding radial support structure. The application is applied to the technical field of new materials and new structures for vibration and noise control, can realize low-frequency broadband vibration isolation effect under high bearing / small size, is convenient to process, and can be quickly adjusted and improved according to actual control requirements.

The invention belongs to the technical field of aviation high-speed transmission, and provides a bevel gear wheel disk which is characterized in that a wheel disk part comprises a first ring plate part and a second ring plate part which are arranged in an inner-outer ring mode, the first ring plate part and the second ring plate part are arranged in an up-down mode, and the thickness of the first ring plate part is smaller than that of the second ring plate part; the width of the first annular plate part is smaller than that of the second annular plate part; the second annular plate part is provided with an annular cavity and an annular groove. According to the bevel gear wheel disk, the design of inner side thinning and outer edge thickening is completed through combined application, high and low pitch diameter resonance frequencies are separated on the basis of the first ring plate part and the second ring plate part which are arranged up and down, and therefore the pitch diameter resonance problem of equipment within the working rotating speed range is avoided, and the service life of the equipment is prolonged on the basis that the thickness of the first ring plate part is reduced. And the runway-shaped annular cavity is formed in the second annular plate part, so that the weight is further reduced, and the light weight is realized.

The invention discloses an anti-falling flat-plate-type workpiece grabbing clamping jaw and a using method, and relates to the field of assembly, the anti-falling flat-plate-type workpiece grabbing clamping jaw can serve as a robot quick-change tail end and is used for sucking flat-plate-type workpieces or cuboid box-type workpieces, the clamping jaw is opened when an air cylinder acts and retracts, and after a suction cup sucks the workpieces, the clamping jaw is closed. The air cylinder acts and stretches out to drive the clamping jaw to be closed to the position below the workpiece to achieve the supporting effect, the proximity switch can sense the state of the clamping jaw, the uniqueness of the grabbed workpiece can be guaranteed after the clamping jaw is in place, and it is guaranteed that the uppermost workpiece is grabbed. When the workpiece loses the adsorption force of the vacuum chuck, the anti-falling effect can be achieved; due to the fact that main transmission parts are fastened in an embracing ring mode, the angle of the transmission rod can be adjusted to enable the mechanism to form a dead point when the gravity of the workpiece acts on the clamping jaw, the workpiece is further prevented from falling off and being damaged, and safety of operators and equipment is guaranteed.

The invention is applicable to the technical field of optical biosensors, and provides an optical biosensor with a single ring-double ring mode switching function, which comprises a broadband light source, an optical signal is transmitted to an optical switch I, an optical sensing chip is respectively connected with the optical switch I and an optical switch II through an optical fiber array, and the optical switch II is connected with a spectrum analyzer. The optical fiber array is connected with the optical sensing chip and the optical switch and used for controlling switching and detection of a single-ring mode or a double-ring mode, when liquid to be detected causes high absorption of the sensing ring, the single-ring sensing mode is adopted, otherwise, the double-ring sensing mode is adopted, and when double-ring sensing is adopted, the single-ring sensing mode is adopted. The reference ring is tuned at the two ends of the thermode of the reference ring, the effective refractive index of the reference ring is changed, when the change of the refractive index is small, characterization of a to-be-measured substance is achieved through the spectral envelope drift distance, when the change of the refractive index is large, characterization of the to-be-measured substance is conducted through the change of FSR, and high-sensitivity and large-range sensing is achieved.

The utility model provides an antenna module and an intelligent terminal. The antenna module comprises a common radiation branch, a tuning circuit, a first feed source, a compensation circuit and a second feed source, the first feed source is connected with the common radiation branch through the tuning circuit; the second feed source is connected with the common radiation branch; and the compensation circuit is connected to a connecting line between the second feed source and the common radiation branch and is used for compensating high-order mode interference on one side of the common radiation branch. According to the technical scheme, the additional compensation circuit can be arranged in the antenna module, and the influence of the compensation circuit on the high-order mode is compensated, so that the influence of the high-order mode close to the lambda ring mode is reduced, and the radiation efficiency of the second antenna is effectively improved.

The utility model discloses a split type quick-release mudguard, and particularly relates to the technical field of mudguards, the split type quick-release mudguard comprises an upper fixing structure, a protection plate and a lower baffle structure which are sequentially arranged from top to bottom, the upper fixing structure comprises a fixing transverse plate and a connecting plate connected to the bottom end of the fixing transverse plate, a sleeving plate is fixedly installed at the bottom end of the connecting plate, and the lower baffle structure is connected with the sleeving plate. An inserting groove extending upwards is formed in the bottom end of the sleeving plate, the top end of the protection plate is inserted into the inserting groove, limiting pieces moving back and forth are embedded in the two sides of the sleeving plate and penetrate through the sleeving plate to be inserted into the two sides of the protection plate, and a T-shaped sliding groove penetrating through the two sides is formed in the bottom end of the protection plate. According to the fender, the wedge-shaped block is matched with the limiting rod and other structures to achieve installation of the protection plate and the sleeving plate, the spring buckle and the connecting ring are used for achieving connection and disassembly of the lower baffle and the protection plate, the installation efficiency is improved, the whole fender component does not need to be replaced when the fender component is damaged and replaced, the use cost is reduced, and adaptability is improved.

This invention discloses an isotropic metasurface for ultrasensitive detection of extracellular vesicles. The square unit cell of the isotropic metasurface consists of a pair of orthogonal I-shaped protrusions and four C-shaped open-ring resonators. The optical metasurface of this invention employs an isotropic metasurface structure design, which exhibits the same response to x- and y-polarized incident light, generating an isotropic resonance response. The interaction between induced magnetic dipoles generates a ring dipole with a characteristic head-and-tail configuration, significantly enhancing the ring mode. This optical metasurface enables ultrasensitive detection of extracellular vesicles, with a correlation R... 2 The value was 0.962, and the LoD of extracellular vesicles was 5 / μL.

The invention provides an FPGA-based EtherCAT master station topology dynamic control system, and the system comprises an EtherCAT master station which is integrated with an FPGA chip, and is provided with a main network port and a redundant network port; a plurality of EtherCAT slave stations, the EtherCAT slave stations are connected in sequence, and the main network port of the EtherCAT master station is connected to the head end slave stations of the plurality of EtherCAT slave stations; the FPGA chip is used for confirming that a network topology structure formed by the EtherCAT master station and the EtherCAT slave station is in a linear mode or an annular mode according to the connection state of the redundant network port; wherein in the linear mode, the redundant network port is in a forbidden state, and in the annular mode, the redundant network port is connected to a tail end slave station in the plurality of EtherCAT slave stations; and the FPGA chip is also used for controlling the connection state of the redundant network port so as to switch the network topology structure between a linear mode and an annular mode.

The utility model relates to a sample reagent management device, which relates to the technical field of medical instruments, and comprises a support base, a sample management unit, a reagent management unit, a cleaning fluid management unit, a diluent management unit, an emergency treatment position unit and a radio frequency identification unit, the diluent management unit is used for diluting a reagent in a kit or a sample tube, and the cleaning fluid management unit is used for cleaning a sample and a reagent injector. According to the scheme, reagent management, sample management, emergency treatment sample management and system liquid management can be highly integrated, the functions are guaranteed, various costs can be effectively reduced, and the size is reduced; moreover, reagent management, sample management, emergency treatment sample management and system liquid (cleaning liquid / diluent) management are all in a disc / circular ring mode, the management efficiency is high, and the size is reduced to the maximum extent.

The utility model discloses a USB integrally formed waterproof and USB spring contact type charging device, which comprises a shell and a machine board, the shell is provided with a USB part, the shell and the USB part are integrally formed by injection molding, the USB part is integrally formed with the shell after being subjected to a plastic coating process, and waterproof treatment is performed between the shell and the USB part. The technical problems that a traditional mode of adopting glue or a sealing ring is complex in manufacturing process and poor in long-term reliability are solved. The USB part comprises a USB plug interface and a USB circuit board, the USB circuit board is provided with a contact finger, the machine board is provided with an electric connection elastic sheet, and the electric connection elastic sheet and the contact finger form an elastic sheet contact type electric conduction mode, so that the problems of high labor cost and high reliability caused by manual welding between the USB plug interface of a traditional charging device and a main PCB (Printed Circuit Board) through a wire rod are solved; and the method has the beneficial effects of intelligent manufacturing feasibility, cost reduction and efficiency improvement accessibility, waterproof effect durability and reliability.

The application provides an FPGA-based EtherCAT master station topology dynamic control system, comprising: an EtherCAT master station integrated with an FPGA chip, the EtherCAT master station being configured with a main network port and a redundant network port; a plurality of EtherCAT slave stations connected in sequence, the main network port of the EtherCAT master station being connected to a first end slave station of the plurality of EtherCAT slave stations; the FPGA chip being used to confirm that a network topology formed by the EtherCAT master station and the EtherCAT slave stations is in a linear mode or a ring mode according to a connection state of the redundant network port; wherein in the linear mode, the redundant network port is in a disabled state, and in the ring mode, the redundant network port is connected to a last end slave station of the plurality of EtherCAT slave stations; and the FPGA chip is further used to control the connection state of the redundant network port to switch the network topology between the linear mode and the ring mode.

Systems and methods for multi-module ring mode fiber configuration, laser powder bed melting, and fine processing control during additive manufacturing (AM) processing. A multi-mode annular laser beam is generated as a spot beam or a first annular beam having a first power distributed in the first beam and a second power distributed in a second annular beam surrounding the first beam. The multi-mode annular laser beam is applied to one or more materials to transform the materials into an AM component. An AM method includes depositing the powder first material in a powder bed, exposing the powder first material to a second material, where the second material has an absorption coefficient higher than that of the first material at the wavelength, and applying a laser beam having a wavelength onto the powder first material and the second material to produce a composite material. An AM method includes controlling optics to apply a laser beam to a region of material during AM processing, receiving sensor data regarding the region; the method further includes determining a processing characteristic of the region based on the sensor data, obtaining a comparison result by comparing the processing characteristic with a target characteristic, and modifying a variable corresponding to control of the optical device based on the comparison result, i.e., modifying a print output according to a target output.

The application belongs to the field of processing of screw sleeves, and particularly relates to a centrifugal oil throwing device and a screw sleeve processing production line. The centrifugal oil throwing device comprises a rack, a box body and a rotating centrifugal mechanism. The box body is arranged on the rack. The rotating centrifugal mechanism comprises a driver arranged on the rack, a rotating disc arranged in the box body in a rotating mode, and a plurality of positioning structures arranged on the rotating disc in a ring mode and used for supporting and limiting movement of columnar workpieces. The driver is in driving connection with the rotating disc. The centrifugal oil throwing device provided in the application drives the rotating disc to rotate to provide centrifugal force. The plurality of positioning structures dispersively position the plurality of columnar workpieces, so that the columnar workpieces are prevented from colliding with each other. The position of the positioning structure is fixed, and imbalance is not easy to occur, so that safety is improved. The attached cooling lubricating liquid and residual cutting chips are thrown into the box body under the action of the centrifugal force, so that work efficiency is improved.

The utility model discloses a seat board unit assembling mechanism, which relates to the technical field of seat board unit assembling structures and comprises a disc assembling table, and a plurality of workpiece clamping parts are arranged on the periphery of the disc assembling table at equal intervals in a surrounding manner. The lifting pressing table is used for simultaneously controlling all the workpiece clamping parts to work; the lifting pressing table drives the workpiece clamping part to be close to the assembling stations; and the workpiece discharging part is located above the workpiece clamping part, and when the workpiece clamping part flows to the position of the discharging conveying belt, the workpiece discharging part drives the workpiece clamping part to conduct discharging. According to the base plate unit assembling mechanism, all the workpiece clamping parts of the disc assembling table are driven by the lifting pressing table to work, the structure of the mechanism is greatly simplified, the operation stability of the mechanism is improved, the manufacturing cost is reduced, and later maintenance and overhaul are facilitated. The assembling stations are arranged in a circular ring mode, the occupied space of the mechanism and the circulation stroke between the stations are further reduced, and the production efficiency and stability of the growth line are improved.

The application relates to a code ring and carrier ring deep cooperation-based adaptive tracking method and system and belongs to the technical field of signal tracking. The method comprises the following steps: a code ring and carrier ring deep cooperation-based tracking loop is constructed; when encountering a weak signal / strong interference environment, the normal carrier ring assists code ring mode switching to code ring assists carrier ring mode; at this time, code frequency and pseudo-range information output by the code ring are injected into the carrier ring as prior information, so that the carrier ring does not need to search the carrier frequency in a large range; meanwhile, a pre-stored channel fixed deviation is introduced to perform ionospheric delay compensation on the carrier phase; a more accurate carrier frequency deviation can be estimated according to the deviation between the ionospheric-compensated carrier phase and the current carrier phase, the carrier ring is quickly recovered to be locked, and therefore, the dynamic tracking capability and the anti-interference performance of the carrier ring are improved without increasing the hardware complexity, and the positioning availability of the receiver is improved.

The utility model provides a pet sports cage which is formed by assembling an inner ring cage frame, an outer ring cage frame and an annular cage cover. The inner ring cage frame is formed by splicing a plurality of vertical inner frame pieces, the outer ring cage frame is formed by splicing a plurality of vertical outer frame pieces, a cage door is further arranged in the middle of one outer frame piece, the outer ring cage frame surrounds the periphery of the inner ring cage frame, an annular interval is formed between the outer ring cage frame and the inner ring cage frame, and the annular cage cover is formed by splicing a plurality of horizontal frame plates. And the annular cage cover covers the upper part of the annular gap between the inner ring cage frame and the outer ring cage frame from the upper part, so that an annular cage body without a back cover is formed. After the pet exercise cage is buckled on the horizontal ground, an annular space for a pet to freely move can be formed, a bird can continuously fly and walk and jump in a rotating ring mode in the annular activity space after being put into the cage through the cage door, and due to the constraint of the pet exercise cage, the bird cannot fly away and be lost during flying exercise exercise, and the pet exercise cage is convenient to use. The device is very safe and convenient.

The utility model relates to the field of automatic production and application of machine tools, in particular to an efficient mute drag chain which comprises a head chain link, a plurality of main and auxiliary chain link assemblies and a tail chain link which are sequentially connected in a ring-to-ring mode. The head chain link is provided with a main rotating shaft; the main and auxiliary chain link assemblies comprise main chain links and auxiliary chain links; the first chain link is provided with a first groove; the main chain link and the auxiliary chain link are each provided with a second cylinder and a second groove. The tail chain link is provided with a first cylinder; the second cylinder on the main chain link is inserted into the first groove in a sliding manner; the second cylinders on the auxiliary chain links are inserted into the second grooves in the main chain links in a sliding mode. And the first cylinders are inserted into the second grooves in the auxiliary chain links in a sliding manner, so that the whole-course silence of the adjacent chain links in the rotating process is realized, and the noise caused by collision generated when the corresponding chain links are in place is reduced.

The invention relates to the technical field of insulators, in particular to a composite insulator wire fixing device and a manufacturing method, and the composite insulator wire fixing device comprises a composite insulator and a wire fixing device; connecting holes are symmetrically formed in the two sides of the upper end and the lower end of the composite insulator along the central axis of the composite insulator; the wire fixing device comprises a wire fixing plate, a hook-shaped screw rod and a fixing nut; the wire fixing plate is arranged on the side portion of the composite insulator, locking holes are formed in the two ends of the wire fixing plate, the wire fixing plate is connected with the composite insulator through the two hook-shaped screws, and a wire passing space is formed between the wire fixing plate and the composite insulator; the adopted composite insulator is of a multi-layer composite structure, the wire fixing plate can clasp the composite insulator in a ring mode through the hook-shaped screw, the tensile strength of the wire fixing device can be effectively improved, in addition, the composite insulator is installed on the street stack wire placing frame and can also serve as a pulley, the wire pulling process is simplified, and the construction efficiency is improved.

Measuring device (100) for determining the value of at least one environmental parameter comprising - comprising an environmental sensor (1) - a semiconductor layer sequence (2) which is designed to form laser modes within the environmental sensor (1), - a cladding (4) whose refractive index changes as a function of the environmental parameter, - a first electrical contact (5) and a second electrical contact (6) for supplying current to the semiconductor layer sequence (2), where - the semiconductor layer sequence (2) has the shape of a general cylinder with a main axis (7), - in directions perpendicular to the main axis (7), the semiconductor layer sequence (2) is at least partially covered by the cladding (4), - the semiconductor layer sequence (2) has a refractive index which is greater than the refractive index of the cladding (4), such that ring modes can form within the semiconductor layer sequence (2) by total reflection at an interface between the semiconductor layer sequence (2) and the cladding (4) by impressing a current into the semiconductor layer sequence (2), - the environmental sensor (1) is designed such that, during its intended operation, a change in the refractive index of the cladding (4) causes a change in the electrical resistance of the semiconductor layer sequence (2) due to a change in the radiation losses within the semiconductor layer sequence (2), - a current source (105) which is designed to impress a constant current into the semiconductor layer sequence (2) via the electrical contacts (5, 6), - a voltmeter (110) coupled to the environmental sensor (1) and configured to measure an electrical voltage drop across the environmental sensor (1), - an evaluation device (120) which is designed to assign the value of the environmental parameter to be determined from a voltage drop measured by the voltmeter (110).