20results about How to "Improve location accuracy" patented technology

The utility model relates to the technical field of die frame switching, in particular to efficient switching equipment for a double-guide-rail linkage type die quick-change die frame. The device comprises a limiting assembly, the limiting assembly comprises side plates, sliding blocks are arranged on the sides, close to each other, of the two side plates in a sliding mode, first guide rails are fixedly arranged on the sides, away from the side plates, of the sliding blocks, and pressing assemblies are arranged on the sides, away from the sliding blocks, of the side plates. According to the device, the mold frame penetrates through the two first guide rails, then a user presses the mold frame downwards till the mold frame is attached to the surface of the supporting block, then the user tightens the fixing screws to fix the two side plates, and when the mold frame is switched, the positions of the two first guide rails can be adjusted according to the size of the mold frame; and the situation that the installation position of the mold frame deviates due to the fact that the two first guide rails cannot be in accurate butt joint with the mold frame is prevented, and the position accuracy of the device for installing the mold frame is improved.

The utility model discloses a mobile phone antenna convenient to assemble, which comprises a mobile phone rear cover, an antenna body is arranged on one side of the top end of the mobile phone rear cover, a positioning arc edge matched with the mobile phone rear cover is arranged on the edge of one side above the antenna body, and four arc-shaped clamping edges are arranged on the upper outer side and the lower outer side of the middle end of the antenna body. The antenna body is provided with four sleeving holes, the edge of one side of the mobile phone rear cover is provided with limiting columns and sleeving columns which are matched with the arc-shaped clamping edges and the sleeving holes, and the posture of the antenna body can be effectively limited and fixed through the limiting columns and the sleeving columns, so that the antenna is prevented from moving during assembly; the multi-point limiting device has the actual using effect of multi-point limiting, attitude positioning can be effectively conducted on the antenna, inclined movement is avoided, therefore, the position accuracy during antenna assembling can be effectively improved, position deviation during antenna assembling can be prevented, the overall quality and efficiency of antenna assembling can be effectively improved during actual assembling operation, and the assembling efficiency of the antenna can be effectively improved. And a good actual use effect is achieved.

The parallel road generation method, system and terminal provided by the application obtain bus trajectories, perform kernel density estimation according to the bus trajectories, and generate a road center line according to the kernel density. The parallel road generation method, system and terminal provided by the application can filter most of the urban GPS drift, and can improve the information precision and position accuracy of road generation, because the global nature of the bus trajectories is used.

The invention relates to the technical field of electric power energy storage, and discloses a GIS-based mountain compressed air energy storage power station site selection method and system, and the method comprises the steps: obtaining first-stage data, second-stage data and third-stage data in a target mountain region; obtaining an alternative region based on the first-level data; obtaining a geological available area based on the secondary data; screening out mountains meeting conditions based on the secondary data, and constructing contours and main ridge lines of the mountains meeting the requirements; determining a mountain reference region, and calculating the area of the reference region; solving an optimal internal rectangle of the mountain reference area, judging whether the mountain reference area meets the requirements of the optimal internal rectangle or not, and determining a target available mountain; the score of the target available mountain is determined by integrating the second-level data and the third-level data, and the area with the high score is used as the final site selection; according to the method, the problems of insufficient accuracy, low timeliness and poor visualization of an existing site selection method are solved.

The application relates to a push button structure and an energy storage device. A damping assembly comprises a first elastic member and a clamping hole. The first elastic member is close to the clamping hole. The first elastic member comprises at least two first recesses and at least two second recesses. The at least two first recesses are arranged between the at least two second recesses. The at least two first recesses are connected to form a first sliding track. A push button assembly is arranged in the first sliding track. The push button assembly comprises a push button cap and a sliding block base. A surface of the sliding block base facing the first sliding track is provided with a first arc-shaped protrusion. The first arc-shaped protrusion is used for sliding between the first recesses of the first sliding track. The push button cap is arranged on a side of the sliding block base away from the damping assembly. A first recess is arranged in an end of the push button cap facing the damping assembly. A conductive assembly is arranged in the clamping hole. The conductive assembly partially extends out of the clamping hole and is clamped with the first recess. The depth of the first recess is D1, the depth of the second recess is D2, and D1 < D2. A user can clearly feel the feedback of gear shifting, and the experience is improved.

The utility model relates to ball valve technical field, concretely, it relates to a kind of slurry ball valve based on multistage sealing, including valve body, the both sides symmetry fixed connection of valve body have connecting body, the inside of valve body is provided with ball, the lower end of ball is rotatably connected with fixed shaft, the upper end of inside fixed shaft and ball contact position is provided with steel ball, in the process of frequently opening and closing or adjusting valve, effectively avoid the sealing failure caused by ball and upper valve shaft deviation, increase the positional accuracy of ball, the upper end of ball is fixedly provided with upper valve shaft, the outside of upper valve shaft is provided with packing gland, effectively prevent slurry along valve shaft leakage, the packing gland and upper valve shaft between are provided with sealing packing, the valve seat is arranged between the connecting body and ball, the valve seat one end and connecting body between are provided with baffle ring, form the first core sealing defense line of valve flow channel, improve sealing reliability.

The present disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. The disclosure relates to a method and system for managing location history by a service providing entity. The method comprises: receiving a first request comprising configuration information, the configuration information being used for configuring a location history service for one or more target UEs associated with the service providing entity; enabling the location history service for the one or more target UEs based on the configuration information; upon enabling the location history service, receiving location information associated with the configuration information, where the location information is stored as location history information by the service providing entity; receiving a second request including query information related to location history information of the one or more target UEs; and sending the location history information of the one or more target UEs based on the query information.

This utility model discloses a laser marking device suitable for marking aluminum profiles, including a table, a conveyor belt, a column, and a sliding support. The conveyor belt is located on the right side of the table, and the column above it has a slide rail. A slip ring connects to the support to fix the laser machine body. The laser emitter is mounted on the machine head via a connector, and it also includes a camera, a control computer, a temperature probe, and an alarm. A feeding plate and a movable storage box are located at the end of the conveyor belt. The machine body has heat dissipation holes, and the bottom of the table has a rubber base. This utility model achieves automatic conveying and positioning of aluminum profiles through the conveyor belt, adjusts the laser head height to adapt to different specifications through the slide rail, assists in precise marking through the camera, monitors the material temperature in real time through the temperature probe, and activates an alarm to ensure safety when the temperature exceeds the limit. A cooling fan prevents the laser components from overheating, the feeding plate and storage box enable automated material receiving and handling, and the rubber pad on the base provides anti-slip protection, thus improving overall marking efficiency, accuracy, and safety.

The invention provides a button cell and electric equipment. The button cell comprises a first cover, a second cover, a sealing ring and an electrode assembly, the second cover sleeves one end of the first cover so as to define an accommodating cavity with the first cover; the sealing ring is annularly arranged between the first cover and the second cover; the electrode assembly is arranged in the containing cavity, and the two ends of the electrode assembly are connected with the first cover and the second cover respectively; the sealing ring is provided with an inner ring body located on the inner side of the first cover, the surface, facing the electrode assembly, of the inner ring body is provided with a protruding structure, and the protruding structure extends towards an electrode, connected with the second cover, in the electrode assembly. According to the technical scheme, the gap around the electrode assembly can be reduced through the protruding structure so that the electrode assembly can be limited in the radial direction, the position accuracy of the electrode assembly can be effectively improved, and the conductive area between the conductive parts can be guaranteed. Therefore, the effective over-current area between the conductive parts can be ensured, so that the internal resistance of the button cell can be effectively controlled, and the reliability of the button cell is improved.

The utility model relates to the technical field of sewing equipment, and discloses a cloth displacement prevention bag opening limiting piece which comprises a pressing piece, a fixed cutter frame, a fixed cutter blade and a cloth bag displacement prevention limiting piece body. The cloth bag opening prevention displacement limiting piece comprises a positioning clamping and fixing assembly, a positioning pressure adjusting assembly for adjusting clamping and fixing pressure according to the thickness of cloth and a controller, positioning clamping and fixing grooves are sequentially formed in the tops of the two sides of the fixed cutter frame in a staggered mode, the fixed blade is installed in the fixed cutter frame, and a bag opening groove is formed in the fixed blade in a linear mode. Bolt fixing grooves connected with the output end of an external bag opening air cylinder are formed in the top of the periphery of the fixed cutter frame, the pressing piece is located at the top of the cloth bag opening operation table under the fixed cutter blade, the pressing piece is a rectangular structure frame, and the positioning pressure adjusting assembly can adjust clamping positioning pressure according to the thickness of cloth. The bag opening limiting piece is simple in structure, convenient to operate and capable of effectively preventing cloth from displacing, and the requirements of modern textile production for the efficient and accurate bag opening process are met.

The application discloses a multi-station positioning device and a positioning method, which comprises a first conveying device and a second conveying device arranged in front of and behind each other and conveying glass in the same direction, a feeding area for placing glass is arranged on the first conveying device, a positioning swing piece mechanism for conveying glass along the width direction of the first conveying device is further arranged on the first conveying device, a positioning printing mechanism for printing glass is arranged on the second conveying device, and the first conveying device, the second conveying device, the positioning swing piece mechanism and the positioning printing mechanism are electrically connected with a controller. The application can simultaneously print multiple glasses in multiple stations, and can accurately position each glass, so that the printing effect is good.

This invention provides a dual-end pipe processing device, including a frame, a composite clamping mechanism mounted on the frame, a first punching die mechanism and a second punching die mechanism disposed on both sides of the composite clamping mechanism, and a positioning component for positioning the pipe fitting. The composite clamping mechanism includes a main clamping die and a movable secondary clamping die disposed inside the main clamping die. The secondary clamping die has a circumferential groove on the side of the pipe fitting closer to the main clamping die. The first punching die mechanism and the second punching die mechanism have the same structure, and each of the first punching die mechanism and the second punching die mechanism is equipped with a plurality of punches. After the positioning component positions the pipe fitting, the positioned pipe fitting is transported to the composite clamping mechanism for clamping. One of the punches in the first punching die mechanism abuts against one end of the pipe fitting, and one of the punches in the second punching die mechanism punches the other end of the pipe fitting and pushes the secondary clamping die to move. This invention can process both ends of the pipe fitting simultaneously, fully ensuring the efficiency and stability of processing both ends of the pipe fitting.

This invention discloses a sewing fixture for multi-layer bag straps, comprising an upper groove, a middle groove, and a lower groove arranged sequentially. The front ends of the upper and lower grooves are output ports, and the rear ends are input ports, with the output ports of the upper and lower grooves centrally aligned. Similarly, the front end of the middle groove is also an output port, and the rear end is an input port. The output ports of the upper, middle, and lower grooves are arranged vertically, close together. The middle groove includes a left groove and a right groove arranged symmetrically, equidistant from the sides of the upper and lower grooves. Both the left and right grooves include C-shaped guide grooves. The C-shaped openings of the two C-shaped guide grooves are positioned opposite each other, with the width of the C-shaped opening gradually decreasing from back to front. Each C-shaped guide groove contains a C-shaped channel that extends from back to front, with the width of the C-shaped channel also gradually decreasing from back to front. This allows for precise automatic alignment of the layers in a three-layer structure.

The application relates to a sheet bonding alignment system, comprising an alignment mechanism, the alignment mechanism comprising a supporting platform and at least one pressing head; the supporting platform comprises a supporting end face and a rotating motor, a plurality of first vacuum adsorption holes are arranged on the supporting end face, and the rotating motor is used for driving the supporting end face to rotate relative to the pressing head; the pressing head is provided with a pressing surface, the pressing surface faces the supporting end face, and the distance between the pressing surface and the supporting end face is adjustable; the first vacuum adsorption holes are used for pre-adsorbing sheets to be bonded, the rotating motor drives the supporting end face to rotate, and the pressing head is used for pressing the sheets to be bonded adsorbed by the plurality of first vacuum adsorption holes respectively. The first vacuum adsorption holes increase the bonding alignment precision. The pressing head and the supporting end face automatically move, and the bonding efficiency is improved.

The utility model relates to laboratory faucet technical field provides a kind of foldable duplex linkage structure and faucet, including three-way valve body, the communicating pipe of opposite insertion in the two sides of three-way valve body, linkage plate is inserted between two communicating pipes, and the locking assembly of locking communicating pipe and three-way valve body. Limiting portion is formed in three-way valve body, when stirring communicating pipe, the communicating pipe of two sides simultaneously rotates relative to three-way valve body, limiting portion is formed with two oppositely arranged sector grooves, the angle between two sector grooves is 90 °, limiting portion is used to limit the rotation of linkage plate in sector groove. The utility model is by being provided with linkage plate between two communicating pipes, when stirring one communicating pipe rotation, the communicating pipe of two sides simultaneously rotates 90 °, the angle between the water inlet pipe of three-way valve and two communicating pipes can be adjusted, so that faucet is adhered in sink in folding state, does not occupy experiment table space, also increases the flexibility of faucet installation time.

The utility model relates to a calcium sulfate anti-static floor anti-movement support and belongs to the field of floor supports, the calcium sulfate anti-static floor anti-movement support comprises a support and a supporting assembly, the support is connected with the supporting assembly, a positioning assembly used for positioning a floor is arranged on the side, away from the supporting assembly, of the support, and the positioning assembly comprises a positioning seat and a plurality of positioning plates; the positioning seat is detachably connected with the support, the positioning plates are arranged on the positioning seat in the circumferential direction of the positioning seat, a positioning space for positioning a floor is formed between every two adjacent positioning plates, and the thickness of each positioning plate is gradually reduced in the direction away from the positioning seat. And the positioning plate which is arranged in a gradually contracted manner is convenient for the worker to guide the floor in the process of secondarily mounting the floor, so that the floor is accurately clamped into the positioning space at the corresponding position, and the precision of secondarily mounting the floor by the worker is improved.

This invention relates to the field of oil extraction equipment technology, and discloses a clamping device and a metal drill tong. The clamping device includes: a frame assembly; two clamping components symmetrically arranged on the frame assembly, each clamping component including a connecting component and a clamping arm, the clamping arm being hinged to the frame assembly via the connecting component; and a drive component disposed on the frame assembly, the drive end of which is simultaneously drivenly connected to the connecting components of the two clamping components. This invention, by setting the clamping components and drive component on the frame assembly, allows the two clamping components to continuously move along a symmetrical clamping trajectory until they contact the workpiece when the clamping device clamps it, resulting in higher clamping accuracy. Furthermore, since the clamping center lines of the two clamping components coincide with the axis of the metal drill tong body, the clamping components can also center and straighten the workpiece during clamping, correcting any deviations in the workpiece's placement.

The application discloses an H-ADCP installation position optimization method based on cross-section traversal scanning, which comprises the following steps: 1) selecting a cross-section to be installed, using a sailing ADCP to measure flow and synchronously observing water level under different water level stages or flow velocity stages, and calculating the average flow velocity of each cross-section; 2) importing the flow velocity data into a cross-section terrain model, dividing candidate units, traversing and extracting representative flow velocities, and generating a flow field and a standard deviation distribution diagram; and 3) comprehensively analyzing and determining the final position through multi-dimensional quantitative evaluation of flow velocity standard deviation, random uncertainty and correlation coefficient, combined with on-site conditions such as terrain adaptability and interference degree. The method disclosed by the application has high site selection efficiency and is suitable for H-ADCP installation site selection in rivers, lakes and other water areas, and is helpful to improve the online monitoring accuracy of river flow.