14results about How to "Avoid load" patented technology

This invention provides a porous piston body for an air compressor cylinder, specifically a piston head in an air compressor cylinder with at least one fixing pin on its top surface to position at least one intake baffle. The intake baffle has at least one bent section adjacent to its positioning area, and the other side of the intake baffle on the bent section is an operating area. This operating area can cover at least one air hole on the top surface of the piston head. An annular groove is recessed on the piston head surrounding the air hole, in which a spring can be housed. The other end of the spring extends upward along the annular groove and abuts against the back of the aforementioned intake baffle. The operating area forms a slightly open ventilation space with the top surface of the piston head on the back side facing away from the cylinder top, so that the pressure inside the cylinder is balanced with the external atmospheric pressure.

This utility model discloses a circular wire winding structure, including a support, a processing platform mounted on the support, a wire guide seat at one end of the top surface of the processing platform, and a winding and binding structure at the other end of the processing platform; a servo wire laying structure is located in the middle of the processing platform, and the winding and binding structure includes a servo automatic winding structure and a servo automatic wire binding mechanism; the servo automatic winding structure includes a left support, a right support, a servo drive motor, a planetary reducer, a winding shaft with a stop plate, a telescopic cylinder, and a limit plate. This utility model has a reasonable structural design, improving the efficiency of wire laying and the tightness and effectiveness of winding. The planetary reducer amplifies the torque of the servo drive motor, improving the rotational accuracy during product winding. It avoids the load and vibration caused by the direct connection of the servo drive motor to the drive shaft during transmission, extending the service life of the servo drive motor and improving winding efficiency.

This application discloses a liquid level control device and a liquid cooling cabinet for automatically adjusting the liquid level inside the liquid cooling cabinet to prevent the liquid level from being too high or too low. The liquid level control device is applied to a liquid cooling cabinet, which includes a cabinet body, a first inlet pipe connected to a liquid supply pipe, and a first outlet pipe connected to a return pipe. The device includes: a liquid level monitoring device installed inside the cabinet body, a control valve installed on at least one of the first inlet pipe and the first outlet pipe, and a controller. The controller is used to acquire liquid level detection data from the liquid level monitoring device and adjust the opening of the control valve according to the liquid level detection data.

The application discloses a contaminated soil replacement method and a light replacement structure, and belongs to the technical field of building replacement, which solves the problems of the existing technology, such as treating the symptoms but not the root cause, large amount of concrete, and poor durability of the protective layer. The method comprises the following steps: contaminated soil treatment, frame assembly (integral type / modularization), block component installation (integral / layering), concrete pouring (layering / integral), and subsequent treatment. The frame and the block component form a protective barrier. Layered pouring requires rough surface treatment, and integral pouring is provided with anchoring components. The structure comprises a frame, a block component (light filling block combined with a U-shaped hook connecting piece), and optional anchoring components (two-way expansion anchor rods). The application replaces 30%-50% of the concrete with light blocks, reduces the load and cost, and improves the durability of the protective layer by more than 20%. The application can block pollution and erosion, is suitable for different construction scenes, and is convenient to operate.

This invention relates to the field of byte processing technology, providing a method and apparatus for accelerating byte encryption and decryption. The invention adds operation bits to bitwise operation instructions; uses corresponding operation bits to perform byte selection, endianness conversion, single-input multiple shift processing, and / or efficient table lookup operations. Specifically, byte selection avoids invalid bit calculations, improving instruction utilization. Endianness conversion ensures correct data order, minimizing duplicate data requests due to order errors, thus reducing the need for bitwise operations and improving GPU bandwidth utilization. Single-input multiple shift processing reduces the number of shift instructions, increasing throughput and avoiding repeated loading of the same data; efficient table lookup operations improve bitwise computation throughput, significantly reducing bandwidth pressure. This invention optimizes the granularity of bitwise operations, enabling encryption and decryption algorithms to efficiently utilize computing resources on the GPU while minimizing bandwidth consumption.

The invention relates to the technical field of fire rescue, and discloses a super high-rise building facade fire unmanned aerial vehicle cooperative auxiliary fire extinguishing system which comprises a task layer, a control layer, an execution layer and a guarantee layer. According to the system, an in-building water taking-floor relaying-window guiding-unmanned aerial vehicle short-range external spraying technical route is adopted, a fire-fighting vertical pipe and an indoor fire hydrant in a building are used as main water supply links, and floor relaying platforms are arranged on the first floor to the third floor below a firing floor. According to the super high-rise building facade fire unmanned aerial vehicle cooperative auxiliary fire extinguishing system, the long-distance vertical water delivery task is borne by an existing fire-fighting vertical pipe in a building, and the unmanned aerial vehicle only needs to bear the load of a short overhanging water hose outside a window and the near-wall spraying task; the on-way loss of the water hose, shimmy impact and the coupling degree of jet reaction force and a flight control system are effectively reduced, the core defects of heavy load, high coupling and poor stability of a traditional ground long-distance water hose pulling-up mode are overcome, and meanwhile the problems of insufficient load and endurance of an airborne fire extinguishing agent mode are avoided.

The application discloses a GPU-based multi-client real-time spectrum monitoring system and a method thereof, and belongs to the technical field of spectrum analysis.The method comprises the following steps: acquiring the spectrum state, behavior information, host state and service quality requirement of a client; calculating the interference intensity coefficient, behavior state coefficient, host state coefficient and service quality coefficient of the client through a corresponding model; dynamically allocating the computing power of each client by using a power distribution model based on the above coefficients; and finally outputting the target refresh rate of each client by a refresh rate optimization model in combination with the allocated power and service quality coefficient.The application solves the problem that the resource allocation in the prior art is rigid and cannot adapt to the differentiated requirements of multi-clients by multi-dimensional state sensing and modeling, realizes intelligent, dynamic and efficient allocation of system computing resources, guarantees the service quality of multi-services, and improves the overall energy efficiency and stability of the system.

Provided is an integrated and compact fluid control valve that corresponds to different fluid pressures, controls fluid at high speed with high accuracy in the case of low-pressure fluid flow, also exhibits high sealing force at the time of valve closure in the case of high-pressure fluid flow to reliably prevent leakage, can suppress a decrease in sealing performance to improve durability, and at the same time, can suppress the consumption of compressed air for driving while flowing fluid with a stable Cv value to prevent changes in flow rate. The divided pistons (23) are arranged in series with respect to the valve seat (13) in a resilient state by a plurality of spring members (24) that differ in spring load, an air supply port (25) is formed in the actuator (11), each piston is independently raised and lowered in the actuator with a predetermined stroke (Y1, Y2) by the compressed air from each air supply port or the resilient force of each spring member, and the valve body can be provided to seal the flow path with different sealing forces corresponding to the lowered state of each piston.

This application relates to the field of motor control technology and provides a method, device, and medium for positionless control of an air conditioning compressor. The method includes: acquiring the three-phase current of a permanent magnet synchronous motor in the air conditioning compressor and transforming it to an α-β coordinate system to obtain α-axis current components and β-axis current components; inputting the α-axis current components, β-axis current components, and the first α-axis control voltage and the first β-axis control voltage of the previous cycle to a back EMF observer based on an extended state observer to determine the rotor angle of the permanent magnet synchronous motor; determining the second α-axis control voltage and the second β-axis control voltage based on the α-axis current components, β-axis current components, and rotor angle; determining the three-phase duty cycle based on the second α-axis control voltage and the second β-axis control voltage; and driving the permanent magnet synchronous motor to run by controlling an IGBT inverter, thereby improving the robustness and position estimation accuracy of the positionless control of the air conditioning compressor.

This invention provides a method for processing database query statements and related products, relating to the field of database optimization. The method includes: obtaining the query statement to be processed; searching for the execution state corresponding to the query statement from a pre-established execution state cache record; if found, the database executor directly loads the execution state to process the query statement; if not found, obtaining the execution plan of the query statement, executing the execution plan by the executor, and saving the execution state of the executor to the execution state cache record. The solution of this invention allows the database executor to directly load the execution state to process the query statement, directly reusing the already initialized execution state, avoiding the time-consuming process of repeated initialization by the executor; it shortens the overall processing flow of the query statement, and is particularly suitable for scenarios where the same query is executed repeatedly.

The utility model discloses a kind of vegetable dehydrating packaging equipment for bag type packaging machine, including packaging machine body and hopper, the upper surface of packaging machine body is equipped with controller, encapsulator, bag holder, bag feeder and rotatable clamping and grabbing turntable by driving mechanism drive, the circumferential surface of hopper is connected with anti-blocking mechanism;Anti-blocking mechanism includes rotating shaft and turntable, the upper end of rotating shaft is fixedly connected with turntable, the circumferential surface of rotating shaft is fixedly connected with torque limiter and auxiliary gear, the upper surface of packaging machine body is equipped with slide rail and mounting plate, the surface of mounting plate is fixedly installed with motor, the output of motor is fixedly connected with rotating lever, one end of rotating lever is connected with main gear, several connecting plates and several slide rods are equipped in slide rail, the upper end of slide rod is fixedly connected with turntable, the surface of connecting plate is fixedly connected with spring, two connecting rods are fixedly connected between turntable and hopper.The utility model has the function of avoiding hopper material blocking, can effectively prevent hopper discharging blockage.

This application provides a coal seam tunneling support system and installation equipment, including a steel support structure for supporting the roof grid of the coal seam tunneling face; anchor bolt and anchor cable support devices for enhancing the stability of the support structure; a safety monitoring system for real-time monitoring of deformation of the support structure, coal seam gas concentration, and changes in ground stress; and coal seam tunneling support installation equipment, including a machine body, with an anchor bolt storage mechanism on the other side of the machine body. The anchor bolt storage mechanism includes a pair of storage trays mounted on the machine body, and the storage trays are provided with vortex clamping channels. To solve the problem of limited anchor bolt storage capacity in existing anchor bolt storage systems, this application improves the anchor bolt storage capacity by setting up an anchor bolt storage mechanism, which includes storage trays mounted on the machine body and vortex clamping channels on the storage trays.

The invention relates to an exhaust heater for an exhaust system of an internal combustion engine, comprising a carrier device (24) and a heating conductor device (18) carried on the carrier device (24), which heating conductor device has at least one heating conductor (14, 16) which is traversed by a fluid, wherein the at least one heating conductor (14, 16) is carried electrically insulated with respect to the carrier device (24) by at least one carrier device support unit (38, 40), which at least one carrier device support unit (38, 40) comprises a carrier device support element (48, 50, 60, 62) having a curved support surface (56, 58, 68, 70).

The present application relates to the technical field of screw installation, and discloses a screw machine positioning mechanism, which comprises a rack, a mounting plate two, a motion execution system, a vision system and a moving speed regulation system. The motion execution system drives the mounting plate two to translate along the XYZ axis; the vision system collects positioning images; the moving speed regulation system comprises a mechanical dynamic performance evaluation module, a motion path evaluation module, a vision system confidence evaluation module, a negative pressure state evaluation module and a moving speed regulation module. Through the collaborative work of multiple modules, the mechanical performance coefficient, the motion path coefficient, the vision confidence and the negative pressure matching coefficient are output based on the parameters of vibration acceleration, tracking error, load, path curvature, moving distance, image definition, illumination intensity, real-time negative pressure value and vacuum establishment time, and finally the moving speed is dynamically adjusted in real time through the speed regulation model. The present application realizes the intelligent balance of positioning accuracy and efficiency under high-speed operation.