46 results about "Pneumatic pressure" patented technology

This utility model discloses a pneumatic pressure balancing device for laser shutters, belonging to the field of laser shutters. This pneumatic pressure balancing device connects a flexible hose to a hollow connector through a through-hole in the outer wall of the laser shutter housing. This isolates the internal chamber of the housing from the external environment. While achieving chamber sealing, the hose can adaptively expand or contract based on its elasticity, achieving internal and external pressure balance. This pneumatic pressure balancing device also has the advantages of simple structure, low cost, and small footprint.

This utility model discloses a cylinder self-locking mechanism and a vacuum cover device for food processing equipment. It includes a cylinder connected to a solenoid valve for controlling the cylinder's lifting and lowering; it also includes an electrically controlled valve; the cylinder has a self-locking structure for locking its lifting and lowering position, and the electrically controlled valve is electrically connected to the self-locking structure; the electrically controlled valve has a pneumatic control structure for controlling the self-locking structure by sensing the pneumatic pressure state of the cylinder; the electrically controlled valve and pneumatic control system ensure that during operation, it senses whether air is supplied or whether the pneumatic pressure is within a preset working range, thereby preventing changes in the cylinder's height position during operation and thus avoiding impact on production activities.

An automotive generator electric vehicle platform. The platform includes an on-board generator operable to be driven by hydraulic pressure and pneumatic pressure to provide power production on-demand against conditions causing deceleration or being affected by resistance. The hydraulic pressure is applied by a hydraulic impeller operably associated with the on-board generator. The pneumatic pressure is applied by a pneumatic impeller operably associated with a pulley drive system configured with a reverse skew bevel gear tilt ratio.

This invention proposes a device and method for detecting the dewatering effect of pneumatic pressure slurry containing residual foam in tunnel boring machine (TBM) slurry, relating to the field of slurry dewatering treatment and detection technology. It includes a support frame, a lower pressure chamber, and an upper pressure chamber. The upper pressure chamber is equipped with an air inlet, an exhaust valve, and a feed pipe; the air inlet is connected to an air compressor via the air inlet pipe. The lower pressure chamber is equipped with a drain outlet and a second exhaust valve. A filter structure is installed between the upper and lower pressure chambers. Below the drain outlet, a liquid receiving container and a mass measuring device are installed, which is connected to a data acquisition and processing device. This invention integrates the entire process of defoaming, flocculation, and pressure filtration of TBM slurry. It is convenient to operate, provides precise pressure control, and allows for real-time monitoring. It is suitable for complex slurry systems containing residual foaming agents, achieving rapid dewatering, convenient sample loading, and real-time accurate monitoring of the dewatering process. It provides reliable data for reagent selection and process optimization under different working conditions and a reliable detection platform for the resource utilization of TBM slurry.

This invention relates to the field of conveying equipment technology and discloses a machine tool conveying assembly for connector cutting and processing. The assembly includes an outer frame, with a conveying device fixedly connected to the top of the outer frame. The outer frame provides an installation position, and the conveying device, mounted on the top of the outer frame, conveys connectors. A pneumatic pressure generating mechanism is located at one end of the top of the outer frame to generate and store gas. A conversion coating mechanism is located at the top of the outer frame, and a feeding mechanism is located at the middle of the top of the outer frame. Multiple solid lubricating rods are internally arranged in the conversion coating mechanism and the feeding mechanism. The feeding mechanism automatically replenishes the lubricating rods, powered by the kinetic energy recovery from the conveying device's own operation. Therefore, no additional power source or control system is required, reducing equipment costs. Furthermore, the simple structure results in low maintenance costs, further reducing overall maintenance expenses.

This invention discloses a high-pressure nozzle mechanism for a photovoltaic cleaning robot with a telescopic adjustment structure. The mechanism includes a support structure comprising a square frame supported by the ground. First access bases are respectively provided on the top two sides of the square frame. A vertical column is installed at the top center of the first access base. Force-bearing support bars are installed on the side walls of the vertical column. A hydraulic lifting cylinder is provided at the top center of the vertical column. Liquid is piped through a spray head and a suitable sleeve with water at one end. The output end of the start-up pressure cylinder extends, and the output end of the adjustment sleeve extends as well. An L-shaped lifting bracket and spray head are used to spray pressurized cleaning agent from this point. The output end of the pneumatic pressure cylinder changes the distance between the spray head and the photovoltaic panel, ensuring that water pressure is not lost due to excessive distance between the spray head and the photovoltaic panel.

The application discloses a pneumatic damping cylinder, which realizes precise pressure control by dividing walking stages and cooperating with air path switching and valve adjustment. The walking process of a knee joint is divided into seven stages, including the initial stage of the support phase, the middle stage of the support phase, the final stage of the support phase, the early stage of the swing phase flexion, the late stage of the swing phase flexion, the early stage of the swing phase extension, and the late stage of the swing phase extension. According to the damping requirements of different stages, the gas pressure of the corresponding air chamber is changed by switching the air path channel, adjusting the opening degree of the adjustable stop valve, and utilizing the one-way conduction characteristics of the one-way valve, so as to adjust the damping force. The application subdivides the walking stage, accurately controls the air path, dynamically adapts the pressure of the damping knee joint, realizes the double optimization of the damping performance and the natural gait, significantly improves the safety, flexibility and application range of the knee joint prosthesis, and has high clinical conversion value and market application prospect.

This invention relates to the field of cold storage insulated doors, specifically disclosing a high-sealing, anti-frost self-locking insulated door for marine cold storage, comprising: a door frame, a labyrinth-type sealing groove, an insulated door, a sliding groove, and a storage groove. The inner wall of the door frame has a labyrinth-type sealing groove circumferentially formed, and the insulated door is rotatably mounted within the inner cavity of the door frame via hinges. This device fundamentally prevents cold air leakage to eliminate frost formation on the sealing surface, uses pneumatic pressure instead of rubber elasticity to achieve lifelong self-compensation of the sealing pressure, provides auxiliary self-locking and vibration damping effects through the interlocking of an inflatable sealing gasket and the labyrinth-type sealing groove, utilizes pressure difference drive to achieve automatic air replenishment compensation of the sealing pressure, and provides a purely mechanical visual monitoring method for the sealing status. It solves the prominent problems of frost formation on the sealing surface, aging and failure of the sealing strip, wear during closing, and lack of coordinated sealing and locking under vibration conditions in existing marine cold storage insulated doors.

The automobile instrument pointer pressing needle detection method belongs to the field of pneumatic pressure pointer. The existing pressing needle detection method has the problems of low accuracy of maximum pressure value acquisition, inability to accurately determine whether the pressing needle process is abnormal, and inability to accurately determine whether the automobile instrument is damaged after pressing. The present application first obtains the demarcation time by using the first pressure curve, divides the second pressure curve at the demarcation time, forms the joint stage and the pressing stage, obtains the maximum pressure value of each stage, and performs abnormality judgment and instrument damage judgment. The present application is mainly used for detecting the pressing needle process of the automobile instrument pointer.

This invention discloses a pneumatic-wire hybrid driven artificial muscle, comprising a pneumatic actuator, a pneumatic pressure regulating component, and a wire drive component. The pneumatic pressure regulating component is connected to the pneumatic actuator and is used to regulate the air pressure in the pneumatic actuator to control its extension or compression. The telescopic end of the wire drive component is fixedly connected to the telescopic end of the pneumatic actuator and is used only to control the actuator's compression. The artificial muscle in this invention employs both pneumatic and wire drive. By utilizing the high rigidity of the pneumatic actuator, it can provide a large driving thrust for joint movement. Simultaneously, the wire drive component enables the artificial muscle to provide a large driving pull. The flexible structure effectively ensures the safety of human-machine interaction, providing sufficient bidirectional assistance for disabled individuals wearing this artificial muscle as a drive device.

A molding device according to an embodiment of the present invention may mold an accommodation portion into a pouch film. The molding device may comprise: a die in which a molding space and an additional space located outside the molding space and partitioned from the molding space are recessed from an upper surface thereof; a stripper disposed above the die to fix the pouch film; a punch for pressing a target area of the pouch film and stretching same into the molding space; and a pressing unit communicating with the additional space and applying pneumatic pressure to a peripheral area located around the target area of the pouch film through the additional space.

This invention relates to the field of micro-liquid dispensing technology, and discloses a sampling device and method thereof. The invention includes a sampling needle, a high-speed solenoid valve, an injection pump, and a pressure stabilizing structure. The sampling needle is used for directional spraying of micro-sample droplets. The high-speed solenoid valve, installed at the sampling needle, has millisecond-level on / off capability, precisely controlling the start and stop of spraying. The injection pump is connected to the high-speed solenoid valve through a first pipeline to pre-pressurize the liquid in the pipeline, establishing a stable high-pressure liquid environment. This invention, through the cooperation of the pressure stabilizing structure and the injection pump, dynamically compensates for pressure loss during the spraying process in real time, maintaining a constant steady-state pressure throughout the pipeline. Combined with the high-speed solenoid valve's precise timing control, it fundamentally eliminates the shortcomings of traditional pneumatic pressure fluctuations, high cost of piezoelectric systems, and easy drift, achieving high-precision and high-consistency spraying of micro-droplets, significantly improving sampling stability and batch repeatability.

This invention discloses a pneumatic sweeping linkage-type borehole cleaning device, belonging to the field of mining blasting construction technology. It includes a traveling vehicle body, a multi-link structure, and a cleaning structure. The cleaning structure utilizes a high-pressure air pump, a nozzle moving assembly, and a pneumatic cleaning assembly working in tandem. An elastic membrane expands under pneumatic pressure to form a barrier, and the airflow from the side pipe acts synchronously with the elastic membrane to sweep and guide debris. This device can adapt to the inner walls of boreholes of different diameters, completing thorough cleaning of debris at the bottom of the hole in a single operation, effectively solving the problems of incomplete cleaning and low efficiency associated with traditional methods. Its main purpose is to ensure the cleanliness of blasting boreholes, improve the borehole formation rate, and enhance blasting safety.

The utility model discloses a stable office chair relates to office supplies technical field, the adjusting part includes the hinge between the seat board and backrest installation, the side surface of pneumatic cylinder adjusting seat is fixed with the wing plate, the first electric push -rod is rotatably installed between the wing plate and backrest, the support piece includes seven support bars of the lower end side edge array distribution of pneumatic pressure lifting rod, the lower surface of support bar is installed with two universal wheel, the second electric push -rod is fixed in the support bar, and the telescopic end of second electric push -rod is fixed in the lower end of pneumatic pressure lifting rod, the lower end of pneumatic pressure lifting rod still is fixed with the guide rod, the telescopic end of first electric push -rod is with backrest around the hinge rotation, realizes the purpose of adjusting backrest angle, and the support area of support piece is adjusted through telescopic after the power of support bar, the problem that office chair can appear gravity rear shift after the backrest angle adjustment degree number is too big is solved, and the stability of office chair adjustment backrest inclination angle is improved.

The invention is directed to a method for magnetically separating target and non-target cells from a cell suspension by eluding the target cell suspension and / or the non-target cell suspension by providing a first pneumatic pressure to the separation column, detecting the decline of the pneumatic pressure over time due to elude the cell suspension and removing the remaining pneumatic pressure when a non-linear decline of the pneumatic pressure over time is detected.

This invention provides a pilot-operated pneumatic pressure regulating valve, belonging to the field of safety valve technology. It includes a valve body and a valve cover. A valve cavity is formed within the valve body, with an inlet chamber connected to one side and an exhaust chamber connected to the other. A valve core is inserted into the valve cavity, and a guide surface is provided on the outer circumference of the valve core. The valve core's position within the valve cavity controls the actual opening of the valve body. High-pressure gas is sequentially output through the inlet chamber, valve cavity, and exhaust chamber. Both the upper end of the valve body and the lower end of the valve cover have connecting interfaces, which are sealed together by flanges and form a pressure regulating cavity. A partition is fixedly installed within the pressure regulating cavity, dividing it into a lower main pressure regulating cavity and an upper damping cavity. An elastic element and a piston are provided within the main pressure regulating cavity. One end of the elastic element abuts against the partition, and the other end abuts against the piston. The piston and valve core are fixedly connected. The main pressure regulating cavity is connected to the inlet chamber via a plug-in inlet pipe, and a first electrically controlled flow valve is connected in series on the inlet pipe.

The application relates to the technical field of quick-change devices, in particular to a flexible quick-change device which comprises a quick-change disc body and a tool disc, the quick-change disc body is provided with a first cavity, a pneumatic ejector rod is slidably arranged in the first cavity, a hole is formed in the upper portion of the pneumatic ejector rod, a buffer assembly is fixedly arranged in the through hole, a steel ball is rotatably arranged at the lower portion of the quick-change disc body, a second cavity is arranged in the middle portion of the tool disc, and a buffer gasket is fixedly arranged on the inner wall of the second cavity in the circumferential direction; the buffer assembly arranged in the pneumatic ejector rod can effectively reduce the abrasion of the contact position of the pneumatic ejector rod and the quick-change disc body and avoid loosening of the connecting position during the frequent connection-disconnection-connection process of the quick-change device, reduce the rigid impact of the contact position of the pneumatic ejector rod and the quick-change disc body, effectively slow down the instantaneous impact force caused by the pneumatic pressure, and ensure the air tightness of the whole quick-change device.

Compressed air release device (1) for a pneumatic system, in particular for an air suspension system of a motor vehicle, comprising an inlet (2) at which a first pneumatic pressure (p sys ) and an outlet (3), wherein an elastically adjustable closing element (5) is arranged pneumatically between the inlet (2) and the outlet (3), which is configured to close or open a passage opening (12) on the outlet (3) side of a counterpart (7), additionally comprising a through-opening (11) which is pneumatically effective parallel to the passage opening (12) and effects a pneumatic, in particular throttled, connection from the inlet (2) to the outlet (3), wherein the closing element is adjustable such that it remains closed below a predetermined pressure value of the first pneumatic pressure (p sys) is in contact with the counterpart (7) so that the passage opening (12) is closed, and above the predetermined pressure value of the first pneumatic pressure (p sys ) is lifted from the counterpart (7) so that the passage opening (12) is open.

This invention discloses a panel saw for fragile materials and its adaptive clamping control method. The panel saw includes a frame, a clamping feeding mechanism, a clamping plate mechanism, and a control system. The clamping feeding mechanism includes a clamping part, a first pneumatic actuator, and a first electric pneumatic pressure regulating device. The clamping plate mechanism includes a pressure beam, a first clamping drive unit, and a second clamping drive unit. The control system includes a control unit, a storage unit, and an input unit. The control unit is configured to: receive a material selection command through the input unit; retrieve a processing parameter group corresponding to the selected material type from the storage unit; based on the retrieved parameters, output a first control signal to the first electric pneumatic pressure regulating device to set the clamping pressure, and output a second control signal to the first and second clamping drive units to achieve coordinated control of the clamping force on both sides of the pressure beam. This invention solves the problem that existing panel saws cannot meet the requirements for automated non-destructive processing of fragile materials and require repeated manual adjustment of clamping and clamping forces.

A test device for an injection nozzle of a nuclear power plant emergency generator that operates in an emergency situation of nuclear power generation includes a support table, a test body slidably installed on the support table and configured to slide between an inspection position and a storage position, a hydraulic pump arranged within the test body and configured to operate by pneumatic pressure, a first pneumatic line connecting an air inlet portion to the hydraulic pump and configured to supply air at a predetermined pressure to the hydraulic pump, a relief valve arranged on the first pneumatic line and configured to control a maximum pressure of the air, a hydraulic line configured to supply oil supplied by the hydraulic pump to an injection nozzle, and an oil pressure measuring portion configured to measure a pressure of oil flowing within the hydraulic line, wherein the oil pressure measuring portion comprises a digital display portion configured to measure a real-time pressure of the oil and digitally display a peak value of the oil pressure supplied to the injection nozzle.

This invention belongs to the field of blowout preventer (BOP) control technology, and specifically relates to a BOP control system and method. A wellhead pressure monitoring module monitors the wellhead pressure in real time using a wellhead pressure sensor. A BOP control module monitors and adjusts the BOP pressure in real time. The controller outputs corresponding pressure control signals based on the real-time received wellhead and BOP pressures. A hydraulic power module provides low-pressure adjustment power to the BOP pressure via hydraulic pressure. A pneumatic power module provides high-pressure adjustment power to the BOP pressure via pneumatic pressure. Power is provided to the BOP through the hydraulic and pneumatic power modules. The hydraulic pump enables low-pressure adjustment, and the pneumatic pump enables high-pressure adjustment, thus expanding the pressure adjustment range of the BOP.

The application discloses a kind of pneumatic pressure and pneumatic hot environment simulation test device and test method thereof, high-temperature high-pressure gas is generated by fuel and air premixed combustion, after gas compression nozzle, release into test chamber, the test projectile of the position posture of test chamber center is pre-adjusted, erosion is carried out, and the environment of aerodynamic pressure field and aerodynamic heat temperature field is formed on the surface of test projectile, while heating coil is arranged around test projectile, and local heating is carried out to realize the temperature gradient distribution around projectile, test chamber is provided with observation window, and the temperature field distribution of projectile is obtained by infrared camera, and multiple columns of patch type pressure sensors are distributed on the surface of test projectile along axial direction, and the aerodynamic pressure suffered by each part of test projectile is collected.The application can simultaneously load the aerodynamic pressure and pneumatic hot environment of test projectile in laboratory environment, and the dynamic test range of aerodynamic pressure and pneumatic hot environment is wide, and the controllability of test process is strong.

The present application relates to the technical fields of pressure cylinder, and discloses a speed-adjustable and fast-positioning pneumatic pressure cylinder, which comprises a cylinder body assembly, the inside of one end of the cylinder body assembly is internally provided with a pressure-assembly movable rod, the inside of the bottom of the cylinder body assembly is internally provided with a threaded rod, the inside of the middle of the cylinder body assembly is internally provided with a positioning assembly, the inside of the other end of the cylinder body assembly is internally provided with a piston assembly, the bottom of the cylinder body assembly is internally provided with a pneumatic assembly, the inside of the cylinder body assembly is internally provided with a pre-pressing area, the side of the threaded rod is internally provided with a threaded sleeve, the pneumatic assembly injects air into the pre-pressing area, so that the threaded rod rotates, the speed of the threaded rod is adjusted by adjusting the air speed, the speed of the pressure-assembly movable rod is adjusted under the cooperation of the threaded sleeve, and then the air injected by the pneumatic assembly pushes the piston assembly, so that the piston assembly compresses hydraulic oil, under the pushing of the hydraulic oil, the problem that the movable rod of the pneumatic pressure cylinder impacts parts at a fixed maximum speed and causes damage to the parts is avoided.

This utility model relates to the field of biopharmaceutical polypeptide raw material processing technology, specifically a raw material separation device for biopharmaceutical polypeptides. It includes a base, a vibrating motor, and a pneumatic telescopic rod. A combined base plate is fixedly installed on the center of the top surface of the base. Support frames are fixedly installed on the top surfaces of the four corners of the combined base plate, and a vibrating motor is fixedly installed in the middle partition of the support frame. A sealed protective frame is fixedly installed at the top of the support frame. This utility model allows for sealed collection of qualified particles separated from the filter screen into the particle guiding chamber via an external pneumatic conveying device after a sealed connection to an external pipeline through a discharge pipe. The width of the particle guiding chamber gradually decreases to improve collection efficiency. During the collection process using pneumatic pressure, the vibrating motor simultaneously drives the filter screen to vibrate and separate, further improving the efficiency of qualified particles passing through the filter screen for separation.

This invention provides an automatic positioning and drilling device and method for metal castings, comprising: a frame with a worktable at its bottom and a support column extending above the worktable connected to the top of the frame; a drilling assembly mounted on the support column for drilling holes in the casting; and a linear adjustment assembly mounted on the worktable for positioning the casting. This disclosure belongs to the technical field of drilling equipment. Through its clamping assembly, this invention allows for continuous drilling operations on multiple different planes of the metal casting using pneumatic pressure after clamping it. The forward movement of the rotating component drives the adjustment shaft to rotate, thereby causing the chuck to rotate with the metal casting. This allows for continuous drilling operations on multiple different planes of the metal casting with a single clamping, significantly improving the drilling efficiency of metal castings.

This invention discloses a high-angle belt conveyor for mining, relating to the technical field of mining material transportation equipment. The conveyor includes an upper conveying mechanism and a lower conveying mechanism arranged vertically. The upper conveying mechanism includes an upper conveyor frame, a transmission device mounted on the upper conveyor frame, an annular membrane driven by the transmission device, and a pressure sealing mechanism located inside the annular membrane. The pressure sealing mechanism extends along the conveying direction and forms a pneumatic chamber with the transmission device and the section covered by the annular membrane above the lower conveying mechanism. An air inlet and an air outlet communicating with the pneumatic chamber are provided on the outer side of the upper conveyor frame. A fan is installed on the outer side of the upper conveyor frame and is connected to the air inlet. By using a flexible annular membrane combined with the pneumatic pressure sealing mechanism, air pressure is used to actively deform the flexible membrane, tightly adhering to and wrapping the surface of the stacked material. This eliminates gaps formed by large particles, achieving overall wrapping and compression of the material, preventing the material from slipping along the lower conveyor's carrying belt.