16results about How to "Guaranteed adjustability" patented technology

This utility model discloses a precision-drilled multilayer circuit board, belonging to the field of multilayer circuit boards. It includes a circuit board and rivets. Each rivet comprises a linkage structure, a clearance groove, a limiting ring, a riveting groove, an outer protective ring, an assembly ring, a riveting plate, a riveting connecting rod, an inner pressure ring, a snap-fit ​​groove, and a through groove. Through the combination of the outer protective ring and the limiting ring, and the inner riveting groove and the riveting plate, stacked rivets can be achieved. Each rivet can independently press the circuit board through the limiting ring, ensuring the stability between circuit board layers and improving interlayer positioning accuracy. Simultaneously, it reduces the pressure difference between layers, thereby reducing deformation caused by uneven interlayer stress, ensuring the accuracy of subsequent drilling, etc. It is not limited by the number or thickness of layers, allows for convenient assembly, and eliminates the need for multiple sets of riveting holes, saving circuit board space. During riveting, a single riveting connecting rod can drive all assembled rivets to be riveted simultaneously, eliminating the need for multiple riveting operations, ensuring stability while improving production efficiency.

The utility model discloses a kind of multi-grade adjusting back buckle assemblies, the utility model relates to the technical field of clothing accessories, the multi-grade adjusting back buckle assembly, including first strap, the first strap is flexible structure, and the left side of first strap is fixedly connected with connecting piece, the inside of connecting piece is linear array and is provided with two connecting holes, the utility model is formed rigid locking by the tooth slot of screw subassembly and step groove, compared with the friction force fixing mode of traditional buckle type back buckle, can bear greater tension without sliding, ensure that the length of braces is constant in the process of movement, limit band cooperates with lead-in groove, guide first strap moves along axial direction, prevent lateral deviation or distortion when adjusting, improve use stability, the elastic support of rubber side plate subassembly reduces mechanical wear, prolongs back buckle assembly service life, while knob component ergonomics design makes adjusting operation more labor-saving, single hand can be completed, significantly improve user experience.

The utility model relates to printer technical field discloses printer paper feed paper position adjusting mechanism, including the support fixed assembly for supporting firm, the inside of support fixed assembly is provided with the transmission assembly for driving, transmission assembly is used for adjusting the circumferential relative position of transmission bull gear and heaven and earth main gear in position adjusting assembly, outside transmission assembly is engaged with rack through change -speed gear group, drives fixed base one and drives adjusting swing board action, makes double gear wheel rotation, double gear wheel is engaged with transmission bull gear, heaven and earth main gear, drives rotating shaft rotation, thus adjusting swing board, fixed base one and the movement of the tab to sensor assembly, the circumferential relative position of transmission bull gear and heaven and earth main gear decides subsequent execution component synchronous accuracy, position adjusting assembly offsets assembly error through the dynamic change of two gear engagement phase, ensures transmission precision, the swing of adjusting swing board can fine adjustment two gear angle, adapts working condition, compensates wear and tear, prolongs life.

The application relates to the technical field of ultrasonic transducers, in particular to an ultrasonic transducer signal anti-interference transmission method and device, which comprises a signal preprocessing unit, an anti-interference unit, an isolation driving unit and a receiving demodulation and decoding unit; the signal preprocessing unit receives original electric signals and differentially amplifies to generate differential signals; the anti-interference unit collects the working environment temperature in real time through a temperature monitoring module, an encoding strategy selection module and a modulation parameter control module dynamically select optimal encoding rules and adjust modulation parameters according to the working environment temperature, and a signal processing module converts the differential signals into digital signals and completes encoding modulation; the isolation driving unit isolates the signals and power amplifies; the receiving demodulation and decoding unit demodulates and decodes according to corresponding rules and restores ultrasonic signals; the application dynamically adapts the encoding rules, the modulation parameters and the heat dissipation strategy through temperature monitoring, suppresses the high-temperature performance drift of the anti-interference unit and guarantees reliable transmission of the ultrasonic transducer signals.

The utility model discloses a quick positioning structure, including the top post, the top post sets up one side at spring upper board, the other side of spring upper board is linked with the one end of straight line guide pillar, the other end of straight line guide pillar is in proper order through spring, guide pillar cover, spring lower board and straight line bearing and is linked with guide pillar connecting plate, the guide pillar cover is connected on spring lower board through fastener, the spring is established on the straight line guide pillar between spring upper board and guide pillar cover, straight line bearing is connected on spring lower board through fastener. The quick positioning structure in the utility model can realize the accurate quick positioning of pneumatic scissors and plastic part gate, avoids the problems of too deep, too high etc. in the process of shearing of gate, satisfies the product quality requirement.

This application relates to the technical field of temperature and humidity environment chamber equipment, and in particular to a temperature and humidity environment chamber with adjustable air inlets and outlets. The chamber includes a chassis, within which a ventilation box is installed. The ventilation box has an air outlet panel and a return air panel mounted on it, arranged opposite to each other. The chassis is equipped with an air exchange component for controlling the flow of gas within the ventilation box, and the ventilation box contains an adjustment component for regulating the airflow direction. This application improves the ease of operation of the temperature and humidity environment chamber with adjustable air inlets and outlets.

The invention discloses a high-strength trampoline protective net machining device, and relates to the technical field of trampoline protective net machining. The high-strength trampoline protective net machining device comprises a base, supporting legs are fixedly connected to the bottom of the base, and a cutting mechanism is fixedly connected to the top of the base. According to the high-strength trampoline protective net machining device, the electric sliding block drives the cutting knife to reciprocate along the sliding rail, and continuous cutting of the protective net is achieved. A telescopic machine in the auxiliary mechanism is matched to drive a cross rod to rotate, a round roller is driven to periodically press a lantern ring downwards, the cutting force of a cutter to the protective net is enhanced, the cutter clamping stagnation phenomenon caused by material toughness is effectively reduced, and the stability and efficiency of the cutting process are improved; the meshing transmission of a gear and a toothed plate in the auxiliary mechanism drives two guide plates to intermittently move towards each other or away from each other, the protective net can be timely stirred outwards after cutting is completed, and the cut net pieces are prevented from being mutually stacked or wound.

This invention discloses an optimization device and method for laser spot edge diffraction, relating to the field of optical instrument technology. The optimization device includes two sets of guiding mechanisms, two sets of driving mechanisms, and two sets of aperture pairs. Each aperture pair includes two opposing aperture plates, the edges of which are used to define the light transmission boundary and have a serrated structure. The driving mechanisms drive the two aperture plates in the same set to move synchronously in opposite directions along the guiding direction. The positions of the two aperture pairs are independently controlled to combine and form different light transmission boundaries. In the optimization method, the positions of the two aperture pairs are adjusted according to the edge morphology of the laser beam to be optimized, and the laser beam is made to pass through the target light transmission boundary for edge intensity modulation. Through the technical solution of this invention, the edge diffraction caused by traditional straight-edge apertures is reduced, and the edge smoothness of the laser beam, the flexibility of light transmission boundary adjustment, the adaptability to different spot morphologies, the shaping consistency, and the processing stability are improved.

This application discloses an adjustable extra-large door system, comprising: a doorpost, the two ends of which are respectively installed in a top groove and a bottom groove via connectors; a door frame, which is snapped onto the doorpost; and a door leaf, which is connected to the door frame via hinges. The bottom of the door frame is provided with a roller device, which includes: a roller mechanism, a roller device bracket, and an adjusting device. The roller mechanism is mounted on the adjusting device, the adjusting device is fixed to the roller device bracket, and the roller device bracket is installed at the bottom of the door frame. The roller system at the bottom of the door leaf allows for height adjustment and can also serve as a support system. It ensures door leaf height adjustment while preventing sagging caused by the door's own weight and structural deformation. Adjusting the bottom adjusting bolts of the door leaf adjusts the height of the rollers to support the weight of the door leaf. The system is simple to install, has a convenient structure, and is easy to operate.

The utility model provides a kind of variable luggage placing rack, comprising: cushion block and positioning moving groove, the cushion block upper end left and right sides are respectively equipped with a group of side support frame for supporting several groups of luggage stop frame, the side support frame is concave structure distribution, the side support frame upper end is equipped with a group of luggage stop frame for shielding luggage outside, compared with prior art, the utility model has the beneficial effects as follows: first, the cushion block is fixed in target position, to ensure that the side support frame is concave structure distribution to stabilize the support of luggage stop frame, by adjusting the telescopic length of lifting rod, the height of luggage stop frame can be flexibly adjusted to adapt to different size luggage, prevent it from toppling or extrusion deformation, the front moving plate is embedded with the positioning moving groove by the hinged lug and realizes left-right translation, expands or reduces bearing area, to load different size luggage in this way.

The application belongs to the technical field of fuel cells, and particularly relates to a mechanism constraint double-time-domain self-evolution optimization control method for an air compressor, obtaining multi-working-condition operation data, establishing a coupling simulation model of the compressor, the motor, the air pipeline and the load end, generating a sample data set and constructing a mechanism constraint set, determining a control action feasible region, fusing current state, historical state sequence and mechanism constraint information, extracting mechanism consistent state features, establishing a control model, generating a candidate control action and projecting it to the feasible region to obtain a control instruction, constructing a comprehensive evaluation model combining a short-time domain and a long-time domain based on the control instruction, and updating and adaptively correcting the control model in combination with long-term operation data, outputting a final control instruction and sending it to a high-speed driving motor and variable-geometry adjusting mechanisms at all levels to control the operation of the multi-stage centrifugal air compressor. The application improves the dynamic response performance, operation stability, gas supply matching capability and long-term robustness of the air compressor under wide working conditions.

The present application relates to the field of communication, and particularly relates to an antenna weight determination method and device, wherein the method is applied to a base station and comprises the following steps: determining a plurality of target beams from a plurality of beams according to user throughput of the beams; determining a first horizontal lobe angle according to coverage range of the target beams in a horizontal direction; determining a first vertical lobe angle according to coverage range of the target beams in a vertical direction; and screening a configurable target horizontal lobe angle and a target vertical lobe angle from a lobe angle configuration set according to the first horizontal lobe angle and the first vertical lobe angle. The antenna weight determination method provided by the embodiment of the present application can save manpower and ensure adjustment effect compared with a method of simply relying on artificial experience to adjust antenna weight.

This invention discloses a data storage device ribbon cable assembly, relating to the field of ribbon cable devices. It includes a mounting plate with a sealing strip on its surface, a fixing plate on its front side, a screw threaded to the inner wall of the fixing plate, a positioning block on the front side of the mounting plate, threaded heat dissipation holes and clearance holes on the front side of the mounting plate, a bundling ring at the front of the mounting plate, and a positioning bundling mechanism on the inner wall of the clearance holes. This invention facilitates installation by using a sealing strip that mates with the inner wall of the external surface; by using a screw, it secures the entire mounting plate; by using threaded heat dissipation holes, it facilitates heat dissipation; and by using a positioning bundling mechanism, it maintains the stability of the data cables and facilitates the bundling of multiple data cables. Through the above structure, it avoids obstruction of the RJ45 connector while maintaining the stability of the data cables and facilitating the bundling of multiple data cables.

The utility model relates to agricultural implement technical field, a movable farmland information real -time monitoring device, including installation groove shell body, mobile subassembly includes servo motor, rotation axis is installed with servo motor rotation, driving wheel group fixed mounting is at both ends of rotation axis, the bottom of U type mounting bracket rotation installation is driven, the bottom wall fixed mounting of installation groove shell body has the obstacle removing subassembly, the obstacle removing subassembly includes the scraper and the support inclined plate, the scraper bolt mounting is at the front end of installation groove shell body, the support inclined plate fixed mounting is at the bottom wall one side of first support base, the front end fixed mounting of installation groove shell body has the blowing apart subassembly, the upper surface fixed mounting of installation groove shell body has monitoring device. The utility model discloses through driving wheel group and driven wheel cooperation, makes the device on the complex terrain of farmland can be stable and moves, the combination of obstacle removing subassembly and blowing apart subassembly, removes different types and the sundries of farmland of size, has reduced the device failure and downtime because of sundry obstruction.

The application belongs to the field of processing equipment, and discloses a man-machine cooperation hole making equipment and method suitable for portable processing equipment. The man-machine cooperation hole making equipment is mainly composed of a power-assisted mechanical arm, a portable processing equipment, a suction fixing module and a fine adjustment module. The power-assisted mechanical arm provides assistance for workers to move the portable processing equipment. The suction fixing module is tightly connected with a workpiece through a suction cup to provide holding force for the portable processing equipment during hole making. The fine adjustment module controls the fixing and movement of the equipment position through the switching of an electromagnet, so that the equipment realizes position adjustment in a small range. The device can provide the required support force when the worker is making holes, thereby effectively reducing the labor intensity of the worker and improving the processing flexibility of the portable processing equipment.

This utility model discloses a shot peening strengthening device for cold work die steel surfaces, specifically relating to the field of metal surface treatment technology. It includes a workbench with a protective shot peening mechanism on top. The protective shot peening mechanism includes an electric slide table fixedly installed on the top of the workbench, with a protective cover slidably connected to one side of the slide table. A transparent observation window is fixedly installed inside the protective cover. This utility model creates a closed shot peening space by the falling protective cover, effectively preventing shot splashing and fully separating the shot from impurities of varying sizes. A second motor drives a rotating disk, which, in conjunction with a rotating rod, hinge column, and spring, causes the filter screen to vibrate up and down, achieving efficient separation of the shot from fine impurities. The separated pure shot can be discharged through a discharge pipe and collected for reuse, greatly reducing shot loss, production costs, and improving resource utilization.