29results about How to "Solve complex structures" patented technology

The invention discloses a large-scale point cloud registration method, system and device based on a power grid power transmission line and a storage medium, and the method comprises the steps: collecting point cloud data of the power transmission line under different visual angles, and forming a source point cloud set and a target point cloud set; down-sampling point cloud data in the source point cloud set and the target point cloud set, dynamically adjusting the sampling granularity of different density regions, and obtaining representative point cloud data from the source point cloud set and the target point cloud set; extracting point cloud feature points, accelerating neighborhood search through a KD-Tree structure, and adaptively adjusting a neighborhood search radius; constructing a geometric topology model; performing coarse registration based on an improved RANSAC algorithm, selecting non-collinear feature points, and optimizing a transformation model; an improved ICP algorithm is adopted to carry out fine registration, and normal vector features are utilized to introduce weighting factors to optimize registration precision. According to the invention, large-scale power transmission line point cloud data can be efficiently and accurately processed, and the method is especially suitable for power inspection, three-dimensional modeling and maintenance scenes.

The utility model discloses a password padlock which comprises a lock shell with a lock hole and a lock rope, one end of the lock rope is fixed in the lock shell, the other end of the lock rope is inserted into the lock hole, and the lock rope can slide along the lock hole. A lock cylinder assembly, a code wheel assembly and a lock block are arranged in the lock shell, the lock block is located on the lower side of the lock hole and abuts against the end of the lock rope to limit sliding of the end of the lock rope, and the lock block can slide and rotate relative to the lock shell. During locking, the lock cylinder assembly abuts against the lock block to limit sliding of the lock block relative to the lock shell, or the code wheel assembly abuts against the lock block to limit rotation of the lock block relative to the lock shell. During unlocking, the lock rope is shifted to enable the lock block to relieve sliding limitation on the lock rope, and the end of the lock rope can be pulled out of the lock hole, so that the lock can be unlocked, the conventional structure with a button is replaced, the problem of complicated structure in the prior art is solved, the unlocking mode is more convenient and quicker, and the operation is simpler.

This utility model relates to an enhanced air mixing device for mixing hot and cold air in scenarios where fresh air is introduced into a mine. It is characterized by comprising: a shaft inlet house, located at the mine's air intake, for mixing the hot and cold air; a cold air inlet unit, located on one side wall of the shaft inlet house, for introducing external cold air into the shaft inlet house; and a hot air inlet unit, located on the other side wall of the shaft inlet house, for introducing hot air into the shaft inlet house. The hot air inlet unit includes: a shaft inlet heating device capable of heating the external atmosphere to generate hot air; and a hot air channel extending into the shaft inlet house, with protrusions on the inner surface of the hot air channel to generate turbulence in the hot air. According to this enhanced air mixing device, cold and hot air in the shaft inlet house can be thoroughly mixed without increasing the number of components, avoiding structural complexity, and preventing increased costs.

The utility model provides an ice maker and a refrigerator. The ice maker comprises a first shell, an ice making module, an ice storage box, a controller, a first water path and a second water path. The first waterway comprises a first power pump, and the second waterway comprises a second power pump; and the ice making module, the first power pump and the second power pump are electrically connected with the controller. The first waterway is connected with the water intake and the second waterway is connected with the ice-making module. The first air inlet and the first air return opening in one side of the first shell are overlapped with the second air inlet and the second air return opening in the compartment correspondingly. When ice making is needed, a refrigeration mode is started to provide cooling capacity for ice making, and meanwhile, a second power pump is started to provide ice water for ice making; when water needs to be taken, the first power pump is started; when ice needs to be taken out, the ice making module is controlled to turn over, the ice storage box is taken out, and ice blocks are poured out. According to the ice maker, water and ice can be taken separately without using a distributor with a complex structure, the structure is simple, the occupied internal space of the refrigerator is small, and the problem that the ice maker is complex in structure can be solved.

The present invention proposes a backlight constant current control circuit, which relates to the field of electronic display and power supply technology, including: a power management module, a mainboard module and a voltage conversion module respectively connected to the power management module, a constant current drive module connected to the voltage conversion module, the power management module is also connected to the power supply, and the constant current drive module is also connected to the mainboard module and the backlight module; the power management module converts the output voltage of the power supply into a first power supply voltage and a second power supply voltage; the voltage conversion module converts the first power supply voltage into a backlight module voltage; the mainboard module works according to the second power supply voltage to generate a backlight drive signal; the constant current drive module outputs the backlight module voltage to the backlight module when receiving the backlight drive signal. The present invention forms a TV split box system through the power management module and the mainboard module, simplifies the structure of the backlight constant current control circuit on the traditional TV screen, and realizes a slim design on the TV screen.

The utility model provides a kind of pan body assembly and cooking utensil, wherein, pan body assembly, comprising: pan body, the sidewall of pan body is spaced apart and is provided with driving shaft and support shaft;Stirring structure is rotatably arranged in pan body and can be contacted with the inner wall of pan body, stirring structure includes oppositely arranged first end and second end, driving shaft is driven connection with first end, support shaft is pivotally connected with second end, driving shaft with stirring structure rotates on support shaft;Wherein, first movable gap is arranged between driving shaft and first end, second movable gap is arranged between support shaft and second end, to make stirring structure in the process of rotation, first end is relative to driving shaft and slides along the normal direction of driving shaft, second end is relative to support shaft and slides along the normal direction of support shaft.The technical scheme of the application effectively solves the problem of complex structure of stirring structure in related technology.

Embodiments of the present disclosure provide a bidirectional holding module for a double power transfer switch and the double power transfer switch. The bidirectional holding module comprises a driving member, a pair of tripping members, a resetting member and an electromagnet. The driving member is adapted to switch between a closing preparation position and an opening preparation position. The pair of tripping members are each adapted to switch between a blocking position and an avoiding position. In the blocking position, the corresponding tripping member of the pair of tripping members abuts the driving member. In the avoiding position, the corresponding tripping member of the pair of tripping members is disengaged from the driving member. The resetting member is adapted to reset the pair of tripping members from the avoiding position to the blocking position and comprises a first spiral portion and a second spiral portion connected to each other, the first spiral portion and the second spiral portion are arranged around the corresponding tripping member respectively. The electromagnet comprises a push rod, the pair of tripping members are located on the moving path of the push rod and are adapted to switch from the blocking position to the avoiding position under the pushing of the push rod.

The utility model discloses a kind of puncture type welding-free joints, it is related to welding-free joint technical field, to solve the problems of existing puncture type welding-free joint complex structure, accessory, high cost. The puncture type welding-free joint includes joint shell and puncture type conducting sheet, joint shell is equipped with containing cavity, containing cavity both ends open, puncture type conducting sheet is installed in containing cavity, and one end of puncture type conducting sheet is equipped with puncture convex tooth;The joint shell on the side of puncture convex tooth is reversely connected with gland. The utility model only includes joint shell and puncture type conducting sheet two core components, simple structure, substantially reduce the number of accessories and production process, reduce production cost;Convenient to operate simultaneously, without professional tool and skill, can quickly complete light bar connection, and connection stability is high, effectively improve use experience, suitable for various connection scenarios of LED soft light bar.

The present application provides a beyond-horizon self-organizing network communication system and method, by extracting the communication link set of the beyond-horizon self-organizing network from the node topology map of the beyond-horizon self-organizing network, selecting a link in the communication link set as the selected link, determining the transmission feasibility of the selected link when transmitting signals according to the signal strength threshold preset by the beyond-horizon self-organizing network and the node topology map, determining the node influence factor of the selected link according to the transmission feasibility of the selected link and the distance between each group of adjacent signal transmission nodes in the selected link, continuing to determine the node influence factors of the remaining links, determining the trusted link in the beyond-horizon self-organizing network according to the interference level of all links and the node influence factors of all links, and performing self-organizing network communication based on the trusted link. The scheme of the present application can reduce the energy attenuation of the signal radio frequency energy caused by long-distance transmission during signal transmission.

The application provides a passive array antenna and a wireless access device, and relates to the technical field of communication. The passive array antenna comprises a plurality of antenna units and a feed network. The plurality of antenna units are arranged in an array. The feed network feeds the plurality of antenna units in a staggered coupling mode, so that the feed levels of the plurality of antenna units decrease from the center of the array to the periphery. The application feeds the antenna units in the staggered coupling mode, so that the passive array antenna can be realized, and the passive array antenna is convenient to arrange. In addition, the feed levels of the plurality of antenna units decrease from the center of the array to the periphery, so that the energy of the central region is high, and the energy of the periphery is low, thereby realizing the effect of low side lobes of the passive array antenna.

The utility model relates to the technical field of circuit breakers, in particular to a contact spring protection device of an air circuit breaker, which comprises a static contact and a contact support, a moving contact fixing plate is arranged between the static contact and the contact support, and when the circuit breaker is in a closed state, a surrounding plate is connected to the inner side of a groove in a sliding manner. The moving contact fixing plate, the surrounding plate and the contact support integrally surround the contact spring body, when the circuit breaker is in an opening state, the spring force of the contact spring body abuts against the moving contact body, the moving contact body pushes the moving contact fixing plate to integrally slide through the guide rod and finally make contact with the limiting piece, at the moment, the surrounding plate slides out of the interior of the groove by more than half, and the moving contact spring body is in a closed state. When the contact spring body is not separated from the groove, the moving contact fixing plate, the surrounding plate and the contact support surround the contact spring body to prevent the particles from contacting with the contact spring body, so that an all-around protection effect is achieved, and the problem that the contact spring body is not comprehensively protected by the existing device is solved.

The invention discloses a quick-mounting nut structure, which relates to the field of mounting parts and comprises a bottom plate (1), and a threaded hole (2) is formed in the middle of the bottom plate (1); the bottom plate (1) is provided with an anti-falling structure (3); a thread column (4) is arranged on the thread hole (2); the bottom plate (1) is a flat plate, and an extension plate (5) is arranged at one end of the bottom plate (1) and located between the anti-disengaging structures (3). The fast-assembly nut solves the problem that a traditional fast-assembly nut is complex in structure, the fast-assembly nut is tightly matched with the shell, and compared with the traditional fast-assembly nut, the fast-assembly nut is simple in structure, simple in manufacturing process, lower in cost and convenient to install.

The application relates to the medical field and discloses a turnover device and a detection equipment, which comprises a stock bin, a mounting piece, a material rotating assembly, a turnover driving assembly and a turnover bin. The stock bin is provided with a bin cavity. The mounting piece is arranged at the outlet of the bin cavity. The mounting piece is provided with a feeding cavity. The feeding cavity is communicated with the bin cavity. A feeding channel communicated with the feeding cavity is arranged on one side of the mounting piece. The mounting piece comprises a plurality of blocking pieces. The blocking pieces are used for opening or closing the feeding channel. The material rotating assembly is arranged on the mounting piece. The material rotating assembly is used for outputting products in the feeding cavity from the feeding channel. The turnover bin is arranged at the rotating end of the turnover driving assembly. The turnover bin is provided with a containing bin. The application stores horizontal test tubes in the stock bin. The material rotating assembly automatically feeds the test tubes to the feeding channel through the feeding cavity. The turnover driving assembly drives the turnover bin to rotate. When the containing bin is docked with the feeding channel, the blocking pieces are triggered to open the channel. After the test tubes enter the containing bin, the turnover bin is rotated by 90 degrees to realize vertical output of the test tubes. Manual intervention is not needed in the whole process.

The present invention provides a needle-free syringe and a method of using the same, including a disposable sterile ampoule, an injection pen and a reset box; the disposable sterile ampoule includes: a bottle body, a push-pull rod, a piston head and a protective member; holes are opened at both ends of the bottle body, and an injection liquid spray hole is set at one end; a through hole is set on the protective member, and the size and shape of the through hole match the size and shape of the outer wall of the bottle body, and the protective member can be sleeved on the outside of the bottle body when injecting liquid medicine; the injection pen is placed in the reset box. The present invention can use the existing syringe production line to mass produce ampoules and realize the automatic assembly of the push-pull rod and the bottle body, which greatly improves the production efficiency and reduces the user's use cost. At the same time, the reset box of the present invention can directly accommodate the injection pen in a non-pressurized state, and can be easily inverted in the reset box to realize the reset function of the injection pen, without the need to prepare an assembly box.

The invention discloses a power distribution network fault positioning method based on intelligent monitoring terminal topology, and belongs to the technical field of power distribution network fault positioning. The method is characterized by comprising the following steps: step 1, an intelligent monitoring terminal constructs a unified information model; 2, the intelligent monitoring terminal completes an equipment registration process; 3, the master station automatically constructs a topology model reflecting the actual connection relation of the intelligent monitoring terminal; step 4, when a fault occurs, the intelligent monitoring terminal actively reports fault information to the master station; and step 5, the master station determines a fault section. In the power distribution network fault positioning method based on the topology of the intelligent monitoring terminal, the fault section in the power distribution network is judged based on the topology network of the intelligent monitoring terminal, so that the problem that the fault positioning of the power distribution network in the prior art is highly dependent on the primary topology information of the power distribution network line and the switch state of the feeder line is solved. The circuit topology configuration is tedious, the change is frequent, and the main station cannot be updated in time, so that the positioning is inaccurate.

This invention discloses a clamping pliers, comprising a clamping chamber, a jaw assembly, and a transmission mechanism. The clamping chamber has a clamp, and the transmission mechanism includes a clamping drive mechanism and a jaw drive mechanism. The transmission mechanism selectively has a first state and a second state. In the first state, the clamping drive mechanism drives the clamp in the clamping chamber to move to the jaw assembly. In the second state, the jaw drive mechanism drives the jaw assembly to move. This invention's clamping pliers incorporate a clamping drive mechanism to perform the clamping action and a jaw drive mechanism to perform the jaw closing action, eliminating the need for a pushing action, reducing the probability of malfunctions during the clamping process, and improving the stability of the clamping action.

The utility model provides a disposable nucleic acid detection device which comprises a reagent tube and a nucleic acid detection device, and a shell part of the nucleic acid detection device is formed by splicing an upper shell, a lower shell and a rear cover plate which are buckled in sequence; a reagent tube placement groove is formed in the top of the upper shell, a nucleic acid detection mechanism is placed in the upper shell, and the lower shell is used for placing a circuit board and a power supply device; the nucleic acid detection mechanism comprises a reagent tube positioning frame, a puncture frame and a reaction cup which are sequentially assembled from top to bottom. The problems that an existing nucleic acid amplification and detection device for nucleic acid detection is complex in structure, large in size and inconvenient to move and take and place samples are solved; nucleic acid detection experiments are generally carried out in hospitals, but kits are generally high in flux and need to be operated by professionals; and meanwhile, the problem of inaccurate test caused by improper storage or carrying of the portable test paper and misoperation or incapability of seeing an indication strip by older people is solved.

The utility model discloses a water level water temperature detection device, including the casing, heat conduction spare and detection structure, the part of heat conduction spare is located the casing outside, another part of heat conduction spare is installed in the casing, and heat conduction spare is non -metal insulator, detection structure includes water level detection element and water temperature detection element, and water level detection element and water temperature detection element all are located the side of heat conduction spare far from the casing outside, and water temperature detection element is close to or contacts heat conduction spare, the utility model makes water level detection element and water temperature detection element all be located the side of another part of heat conduction spare, and then water level detection element can detect the water level of liquid in product through heat conduction spare, and water temperature detection element can detect the temperature of liquid through heat conduction spare, realize the detection of water level and water temperature simultaneously, because heat conduction spare is non -metal insulator, although heat conduction spare contacts product outside also can not leak electricity, and then avoid water level water temperature detection device ground wire, thereby avoiding the complicated structure in the casing, reduce manufacturing cost.

The utility model belongs to the technical field of ceramic tile production equipment, disclose a kind of green body slurry heating device using kiln waste heat, including kiln, slurry heating tank, slurry coil pipe, return pipe group, water outlet main pipe and heat exchange tube.The return pipe group is connected with the water inlet of slurry heating tank;The water outlet main pipe is connected with the water outlet of slurry heating tank;Two ends of the heat exchange tube are connected with return pipe group and water outlet main pipe respectively.The utility model directly forms heat exchange tube part by making heat exchange tube directly into kiln interior, so that the heat in the interior of kiln can be directly transferred to water by heat exchange tube part, the water in heat exchange tube can be elevated to higher temperature, so as to not only can greatly improve heat recovery efficiency, but also can shorten the heating time of green body slurry, improve the production efficiency of green powder.In addition, the utility model can build heat exchange loop by the connection of heat exchange tube, return pipe group and water outlet main pipe, avoid the internal structure of pipeline complex, thus can reduce the difficulty of pipeline layout.

The utility model discloses a fingerprint unlocking cup which comprises a cup body with a containing cavity, a cup cover capable of tightly covering the cup body is arranged on the cup body, a fingerprint unlocking mechanism is arranged on the cup cover, a driving mechanism and a transmission mechanism are arranged in the cup body, a locking piece capable of expanding outwards and contracting inwards is arranged on the cup body, and a fingerprint unlocking mechanism is arranged on the locking piece. And a groove matched with the locking piece is formed in the inner side wall of the opening of the cup body. Thread design is effectively eliminated, necessary thread production and manufacturing are better reduced, production and manufacturing cost is further reduced, and requirements of production and manufacturing enterprises are met.

This invention provides a solid welding wire and method for welding ultra-high strength steel of grade 1650MPa and above, to solve the technical problem that the tensile strength of the weld metal is insufficient to reach 1650MPa or above when welding 30CrMnSiA ultra-high strength steel with existing welding wires, while ensuring that the weld has sufficient impact toughness, that is, the weld impact toughness KU2 is maintained above 45J. The invention is characterized by the following chemical composition and its wt% content: C=0.38~0.45, Si=0.20~1.20, Mn=0.20~0.70, Cr=0.25~1.25, Ni=0.20~1.20, Mo=0.10~1.00, V=0.05~0.07, Al=0.02~0.05, Cu≤0.1, S≤0.005, P≤0.012, Fe=balance.

The utility model discloses a card separating device based on a spring clamping hand, which comprises a mechanical arm, the spring clamping hand, a test card and a pre-tightening clamping groove, the test card is placed in the pre-tightening clamping groove, the spring clamping hand is mounted at the tail end of the mechanical arm, and the spring clamping hand clamps and releases the test card through the movement of the mechanical arm; and an anti-skid gasket is arranged on the contact surface of the spring clip and the test card. By means of the innovative design of the mechanical arm and the spring clamping hand, the card processing device has the advantages of being easy and convenient to operate, capable of improving efficiency, high in reliability and high in adaptability, effectively solves the problems that a traditional card processing device is complex in structure and inconvenient to operate, and improves card processing efficiency and reliability.

The utility model relates to the technical field of electric cylinders, in particular to an integrated electric cylinder which comprises a cylinder body, a power driving unit, a supporting and detecting unit and a transmission unit are arranged in the cylinder body, the transmission unit comprises a reverse planetary roller lead screw, the output end of the reverse planetary roller lead screw is driven by the driving unit to do linear reciprocating motion, and the output end of the reverse planetary roller lead screw is driven by the supporting and detecting unit to do linear reciprocating motion. The supporting and detecting unit comprises a displacement sensor and a temperature sensor, the displacement sensor is installed in the reverse planetary roller screw and used for monitoring the position of the reverse planetary roller screw doing linear reciprocating motion, and the temperature sensor is arranged on the outer surface of the cylinder body and the connecting face between the reverse planetary roller screw and the driving unit and used for monitoring the position of the reverse planetary roller screw doing linear reciprocating motion. According to the utility model, the graphene distributed sensor arrays are arranged on the outer surface of the cylinder body of the electric cylinder and the connecting surface between the reverse planetary roller screw and the driving unit, so that the temperature of the whole outer surface and the interior of the electric cylinder can be comprehensively monitored.

The utility model discloses a motor stator outgoing line busbar structure, which comprises a support, a plurality of copper bars and a plurality of pins, the support is annular, the support is coaxially sleeved outside a motor stator, one surface of the support is used for being detachably connected with a coil holder of the motor stator, the support is provided with a plurality of first positioning holes, and the plurality of first positioning holes are annularly distributed on the support; the copper bar is formed by bending a flat copper wire for multiple times, the copper bar is provided with a plurality of second positioning holes, the second positioning holes are in one-to-one correspondence with the first positioning holes, the copper bar is arranged on the support so that the second positioning holes can be aligned with the corresponding first positioning holes, the copper bar is provided with one or more wire outlet terminals, and the wire outlet terminals are used for being connected with wire outlet heads of the windings; each pin corresponds to and is connected with one copper bar, one end, far away from the corresponding copper bar, of the pin is provided with a pin terminal, and one end, far away from the pin terminal, of the pin is fixedly connected with the support. The motor stator outgoing line busbar structure can solve the problems that an existing motor stator outgoing line busbar structure is complex in structure and high in preparation cost.

The invention relates to the field of liquefied natural gas storage, in particular to a thin-film corrugated plate, a thin-film inner tank and a thin-film tank, and aims to solve the technical problems of complex processing technology and high processing difficulty of corrugated plates in related technologies. According to the thin film corrugated plate, the transverse connecting corrugations and the longitudinal connecting corrugations are communicated through the closed corrugations, transverse and longitudinal intersection is avoided, stress concentration at the intersection of the transverse connecting corrugations and the longitudinal connecting corrugations is reduced, and the closed corrugations can counteract telescopic deformation caused by liquid inlet and outlet and temperature changes; meanwhile, the problem that the structure at the junction of longitudinal corrugations and transverse corrugations is complex is solved; in addition, by the adoption of the design, the connection corrugation and the closed corrugation are simple in structure, and the junction of the connection corrugation and the closed corrugation is communicated and not penetrated, so that the film corrugated plate can be formed through one-time punch forming.

This patent provides a height-adjustable electric posture corrector, comprising: a correction table; a drive device for providing power for bidirectional rotation around a fixed axis; a transmission device connected to the drive device for converting the bidirectional rotational motion into synchronous reverse linear motion of a first moving part and a second moving part; and a telescopic device including a first link and a second link hinged to each other at their middle portions, the lower end of the first link being hinged to the first moving part and the upper end being hinged to the correction table, and the lower end of the second link being hinged to the second moving part and the upper end being hinged to the correction table; wherein, the drive device drives the first moving part and the second moving part to move towards or away from each other through the transmission device, thereby causing the telescopic device to retract or expand to raise or lower the correction table, providing a height-adjustable electric posture corrector with a simple structure, low cost, low energy consumption, and reliable operation.

This invention relates to a flipping device and its rotating platform for an electrolyte shovel cleaning system. The rotating platform includes a fixed frame, on which a rotating frame is rotatably mounted. A transition track is provided on the rotating frame, and the transition track has a support portion for supporting a chain with a guide rod assembly and allowing the chain to roll. A reciprocating drive mechanism is provided on the fixed frame, and a transmission portion is arranged on the rotating frame. The output end of the reciprocating drive mechanism is connected to the transmission portion to drive the rotating frame to reciprocate around its own rotation axis. When the rotating frame is in a horizontal initial position, the first sidewall of the guide rod assembly faces the shoveling direction. After the shoveling work is completed, the rotating frame is driven by the reciprocating drive mechanism to rotate, causing the transition track to swing around the rotation axis, and causing the chain and the guide rod assembly to rotate by a set angle, so that the second sidewall of the guide rod assembly adjacent to the first sidewall faces the shoveling direction. This achieves shoveling and cleaning of the guide rod assembly in different orientations, with simple control and convenient drive.

This utility model provides a plastic thread spool flash removal machine, including a protective cover and a processing platform. A reducer is installed on the lower side of the processing platform, and a drive motor is mounted on the lower side of the reducer. A rotating shaft is connected to the upper side of the reducer, and a rotating base is installed at the upper end of the rotating shaft. The protective cover is fitted on the annular side of the rotating base, and a fixed baffle is installed on the right side of the protective cover. An electric push rod is installed on the right side of the fixed baffle. This design solves the problems of the original plastic thread spool flash removal machine, which has a complex structure, is difficult to manufacture, has a high operating cost, can only remove flash from one side of the plastic thread spool, requires changing the placement direction of the plastic thread spool, is not convenient to operate, and has a low flash removal efficiency. This utility model has a simple and reasonable structure, is easy to manufacture, has a low operating cost, facilitates flash removal from plastic thread spools, has a high flash removal efficiency, and can shield and protect the cleaned debris, reducing the splashing of debris.