321 results about "Head moving" patented technology

The invention discloses a mahjong machine and a slope tile playing device thereof, which are characterized in that a planet carrier and a planet wheel which rotate actively rotate around a fixed sun wheel, and a tile feeding push rod is driven by the planet carrier, the planet wheel and a turntable to rotate to push and feed tiles; a mahjong lifting swing arm is driven by a planet carrier, a swing rod, a rack and a mahjong lifting gear to swing to drive a mahjong lifting supporting plate to lift mahjong; two transmission paths of a planet carrier and a planet wheel are ingeniously utilized, so that a mahjong feeding push head does not push mahjong tiles when a mahjong tile lifting supporting plate is controlled to descend only through mechanical transmission cooperation by a motor, and the mahjong tile lifting supporting plate does not move when the mahjong tile feeding push head pushes the mahjong tiles; when the tile lifting supporting plate is lifted, the tile feeding pushing head does not push tiles, after the tile lifting supporting plate is lifted, the tile feeding pushing head moves out of the tile storage groove, the lifting action of the tile lifting supporting plate and the tile pushing action of the tile feeding pushing head do not interfere with each other, the structure is simple and reasonable, action connection is good, operation is stable and reliable, the mahjong machine is coherent and smooth in action, noise is low, and the user experience is good.

The invention discloses a concentration training method and system based on multi-modal fusion, and the method comprises the steps: collecting an electroencephalogram signal, an eye movement signal and a head movement signal through a wearable device in a concentration training process, and calculating an electroencephalogram frequency characteristic parameter, an eye movement parameter and a head movement modal parameter in a one-to-one correspondence manner; calculating a concentration score according to the electroencephalogram frequency characteristic parameters, the eye movement parameters and the head movement modal parameters so as to evaluate the concentration; and adjusting a concentration training strategy according to a concentration evaluation result. According to the method, the electroencephalogram, eye movement and head movement signals are collected at the same time through the wearable device, the corresponding characteristic parameters are calculated, the concentration score is comprehensively evaluated, and a comprehensive, accurate and stable evaluation result is provided. On the basis of real-time evaluation, task difficulty and types are dynamically adjusted, challenging and interestingness are ensured, the user participation degree and the training effect are improved, and concentration research and technical progress are promoted.

The invention belongs to the technical field of laser cutting, and particularly relates to a numerical control laser cutting machine for metal material machining, which comprises a machine body, a moving frame is fixedly connected to the upper part of the machine body, a sliding table is slidably connected to the upper surface of the moving frame, and a laser cutting head is arranged on one side of the sliding table. The laser cutting head moves along with the sliding table to conduct movable cutting work, a limiting assembly is arranged on the upper surface of the machine body and comprises a reciprocating screw rotationally arranged on the upper surface of the machine body, a sliding rod is slidably connected to the circumferential face of the reciprocating screw, and a plurality of sliding plates are arranged on the surface of the sliding rod. The plurality of sliding plates are used for limiting the metal plate; and rotating gears are fixedly connected to the two ends of the reciprocating screw correspondingly, one side of one rotating gear is fixedly connected with a motor, and the limiting assembly and the lifting assembly are arranged, so that the problem that dislocation and deviation are likely to happen in the laser cutting process is solved.

The invention relates to the technical field of electroencephalogram monitoring, in particular to a non-contact electroencephalogram monitoring method and system, and the method comprises the steps: obtaining a corresponding head image of a target user at a current moment; determining a corresponding head pose of the target user at the current moment based on the head image corresponding to the current moment; based on the head pose at the current moment and the head pose corresponding to the previous moment, the pose of an electroencephalogram cap is determined, the electroencephalogram cap comprises a plurality of brain electrodes, and the brain electrodes monitor electroencephalogram data of the target user under the pose corresponding to the electroencephalogram cap. The problems that in the non-contact electroencephalogram collecting process, when the head moves, the collecting position deviates, and signals are not stable can be solved.

The invention relates to the technical field of press-fitting equipment, in particular to an automatic press-fitting device for a brake caliper assembly production line, which comprises a press-fitting rack, a press-fitting lifting unit, a multi-head press-fitting unit and an adjustable positioning unit, the press-fitting lifting unit controls the multi-head press-fitting unit to ascend and descend, the multi-head press-fitting unit integrates a plurality of switchable press-fitting heads, the position of the multi-head press-fitting unit is adjusted through the press-fitting head moving assembly, and the adjusting type positioning unit automatically adjusts the three-dimensional angle of a brake caliper through the supporting and adjusting assembly, so that the position to be press-fitted corresponds to the press-fitting heads accurately. The problem that an existing clamp needs to frequently adjust the angle of a brake caliper is solved, efficient and automatic press fitting of multiple parts is achieved, and the production efficiency and flexibility are improved.

The utility model provides a multifunctional rolling production line for domestic ceramics, which comprises a circulating line, a variable-diameter mud throwing machine with two sets of mud cutting platforms is arranged on the starting side of the circulating line, and mud strips with different diameters conveyed on the two platforms are quantitatively cut off by a mud cutting assembly and then conveyed to a mold on the circulating line by a feeding assembly. A tool changing platform is erected at the head end of the circulation line, a rotary disc in the tool changing platform clamps a plurality of rolling heads, the rotary disc moves the corresponding rolling heads to the position below a rolling head base under driving of a pushing air cylinder, a tool beating air cylinder on the rolling head base drives a built-in grabbing hook to clamp the rolling heads, the rolling head base is hinged to a clamping plate of a roller press, and the included angle is adjusted through a push-pull assembly. A transfer manipulator is arranged at the outlet of the drying room; according to the production line, mud strips with proper diameters and lengths are put into molds according to the types of the molds, corresponding rolling heads can be automatically replaced, parameters such as inclination angles and rotating speeds can be automatically adjusted, non-stop continuous production of different types of ceramics is achieved, and the production line is suitable for production of various types of small-batch domestic ceramics.

The invention discloses an ultrasonic transcranial detection system, method and device based on the virtual reality technology, and relates to the technical field of ultrasonic detection.The system comprises a pose measuring component and a virtual reality component, the pose measuring component measures pose related parameters in the real ultrasonic detection head moving process, and the virtual reality component measures the pose related parameters in the real ultrasonic detection head moving process; the virtual reality part determines the position and the angle of the real ultrasonic probe when the movement is stopped based on the pose related parameters in the movement process, and moves the virtual ultrasonic probe based on the position and the angle of the real ultrasonic probe when the movement is stopped; the pose of the virtual ultrasonic detection head relative to the virtual head is made to be the same as the pose of the real ultrasonic detection head relative to the real head, when the virtual ultrasonic detection head stops moving, the virtual ultrasonic detection head is used for detecting the virtual head, the detection result is displayed, and a virtual blood vessel is arranged in the virtual head. The diagnosis accuracy and efficiency of doctors can be improved.

The invention relates to the technical field of leather production, in particular to a perforating device for leather production, which comprises a worktable and guide frames symmetrically and fixedly connected to the top of the worktable, an electric lifting plate is mounted between the guide frames, a fixed frame is fixedly connected to the bottom of the electric lifting plate, and a rotating frame sleeving the fixed frame is rotatably connected to the bottom of the electric lifting plate. Leather penetrates through the space between a pressing roller and an electric conveying roller, so that the leather is located on a workbench, then an electric rotating cylinder is started to enable a punching head to rotate and rotate, then an electric lifting plate is started to move downwards to enable the punching head to move downwards to punch the leather, and meanwhile an electric screw is started to rotate to drive a fixing frame to move forwards; the fixing frame drives the punching head to move forwards through the fixing shell, the punching head moves forwards and rotates to expand the hole diameter for punching the leather, in this way, the hole diameter for punching the leather can be automatically adjusted, punching heads of different sizes do not need to be replaced by machine halt, and therefore the overall production efficiency is improved.

The invention discloses a multi-unmanned aerial vehicle target searching method and device fusing eye movement and head movement signals, and particularly relates to the field of unmanned aerial vehicle control. Comprising the following steps: acquiring field-of-view images of a plurality of unmanned aerial vehicles, and displaying the field-of-view image of each unmanned aerial vehicle through a corresponding display; acquiring a head image of an operator, and determining a display towards which the head in the head image faces; determining the rotation direction of the head of the operator in the current display; controlling search equipment of the unmanned aerial vehicle corresponding to the current display to rotate according to the rotation direction; acquiring an eye movement signal of an operator, and determining the sight position of the operator on the current display according to the eye movement signal; eye movement locking behavior recognition is carried out according to the variable quantity of the sight line position; and when the identification result is the eye movement locking behavior, determining a locked target position. The man-machine interaction efficiency of task control of multiple unmanned aerial vehicles can be improved, and then the searching efficiency is improved.

The invention discloses a collaborative method and device for laser-assisted three-rotating-shaft six-linkage milling of blade disc parts. According to the technical scheme, the overall layout of the machine tool is the overall layout of mature flat machine tool body and stand column movement, a movable column linear guide rail is provided with six sliding blocks, a sliding table moves left and right along a machine tool body (X axis), the stand column moves front and back along the sliding table (Z axis), a swing head moves up and down along the stand column (Y axis), and the swing head is installed on a sliding saddle at the horizontal angle of 45 degrees and can rotate around the A axis of the swing head. A rotary table B shaft is installed on the sliding table, and a workpiece shaft C shaft is vertically installed on the workpiece shaft. The double-beam collaborative laser auxiliary device adopts a symmetrical layout, positioning devices are mounted on two sides of a swinging head, and real-time dynamic compensation of a laser incident angle is realized by combining an electric push rod adjusting mechanism, so that a to-be-processed area can be fully covered by double-beam collaboration. The milling cutter has the advantages that the swinging head can rotate, so that transition is smoother when the milling cutter works, and meanwhile, the machining performance of blade disc type materials is improved under laser cooperative machining.

The utility model discloses a double-station dispensing and wiping mechanism which comprises a double-station dispensing mechanism and a wiping mechanism, the double-station dispensing mechanism comprises two groups of dispensing heads, the wiping mechanism comprises a frame plate and wiping assemblies, and the two groups of wiping assemblies respectively correspond to the two groups of dispensing heads of the double-station dispensing mechanism. The wiping assembly comprises a clamping jaw air cylinder and a cleaning wheel, and the clamping jaw air cylinder drives the cleaning wheel to movably clamp the dispensing head. According to the dispensing head cleaning device, the clamping jaw air cylinder is started, the dispensing head is clamped through the cleaning wheel, and the dispensing head moves up and down at the clamping position of the cleaning wheel, so that the dispensing head is cleaned. After the dispensing heads of different specifications are adopted for dispensing work, the cleaning wheel can be driven by the clamping jaw air cylinder to clamp and wipe the dispensing heads, the wiping effect on the dispensing heads is guaranteed, and universality is improved. Or the cleaning wheels with different specifications can be replaced according to the shape of the needle head of the dispensing head or the size of the nozzle, so that the corresponding wiping work requirements are met.

The invention discloses an intelligent cooperative control system and method for vestibular function inspection. The invention discloses an intelligent cooperative control system and method for vestibular function examination, and belongs to the technical field of medical instruments. The system comprises a cold and hot air perfusion module, a dynamic visual target module, a head posture detection module, a sight distance detection module, an eye movement acquisition module, a voice interaction module, an adjustable examination chair and a central controller. The central controller realizes closed-loop control based on multi-source sensing data: during a cold and hot test, if the elevation angle of the head deviates from 30 degrees + / -2 degrees, stimulation is paused and voice prompt is performed; during visual target testing, visual target parameters are automatically compensated according to the actually measured sight distance of 1.5 m + / -0.1 m so as to maintain a constant visual angle, and the upright state (90 degrees + / -2 degrees) of the head is verified; abnormities such as eye closing more than or equal to 2 seconds or head movement more than or equal to 5 degrees per second are monitored in the whole process, graded voice intervention is implemented, and the abnormities are paused. Body position conversion is guided by voice, multi-source data are synchronously stored, and peripheral and central function correlation analysis is supported. According to the invention, the accuracy and compliance of inspection can be improved.

The present invention belongs to the technical field of laser cutting, and specifically relates to a numerically controlled laser cutting machine for metal material processing, including a machine body. A moving frame is fixedly connected above the machine body. A sliding table is slidably connected to the upper surface of the moving frame. A laser cutting head is arranged on one side of the sliding table. The laser cutting head moves for cutting work along with the movement of the sliding table. A limiting component is arranged on the upper surface of the machine body. The limiting component includes a reciprocating screw rod rotatably arranged on the upper surface of the machine body. A sliding rod is slidably connected to the circumferential surface of the reciprocating screw rod. A plurality of sliding plates are arranged on the surface of the sliding rod. The plurality of sliding plates perform a limiting function on the metal plate. Rotating gears are fixedly connected to both ends of the reciprocating screw rod. One of the rotating gears is fixedly connected to a motor. By arranging the limiting component and the lifting component, the problem of easy misalignment and offset during the laser cutting process is solved.

The embodiment of the invention discloses a dispensing path planning method, a network training method, dispensing equipment and a medium. The method comprises the following steps: acquiring a current position of a dispensing head in a dispensing task and an access state of each to-be-dispensed point position; inputting the current position and each access state into a main network of a pre-trained deep Q network, and determining a next dispensing point according to an output main network Q value; in the depth Q network, when the dispensing head moves from the current position to the next position, the dispensing movement time is determined according to the acceleration, deceleration and uniform speed movement process of dispensing equipment; determining a reward function according to the glue dispensing movement time, and taking the reward function as an optimization target; and updating the current position and each access state of the dispensing head according to the next dispensing point location, and returning to the step of determining the next dispensing point location through the main network until all dispensing point locations are accessed to obtain a dispensing path planning result. The influence of the actual acceleration and deceleration process on the motion time is considered in the dispensing path planning, and the timeliness of the dispensing path planning is improved.

The utility model relates to the technical field of drop hammer impact testing machines, and discloses a mechanical lifting appliance for a drop hammer impact testing machine, which comprises a base, a support frame and a storage table. Through the arrangement of the base, the supporting frame, the storage table, the vertical rod, the testing mechanism, the hoisting mechanism, the winding mechanism, the driving mechanism and the mounting structure, firstly, a sample is placed on the storage table, the driving mechanism drives the winding wheel to rotate, the twisted rope drives the mounting frame to move upwards, the testing head moves to a designated position, and the hoisting mechanism is opened; and the test head is replaced through the mounting structure, so that the problems that in the prior art, the test head of a traditional drop hammer impact testing machine cannot be quickly replaced, the connection between a lifting appliance and a test mechanism is relatively complicated, the lifting appliance and the test mechanism cannot be quickly separated in the test process, and the test efficiency is low are solved. And the test efficiency is reduced.

The application provides a magnetic resonance motion tracking method based on a head-mounted in-situ calibration electromagnetic coil, and relates to the field of magnetic resonance motion tracking.The method of the application comprises the following steps: wearing a coil cap to a patient's head for positioning pre-scanning to obtain initial position parameters and initial direction parameters of coils in the coil cap; the coil cap comprises M coils located at different positions; wearing the coil cap to the patient's head for formal scanning to obtain head motion parameters; in the process of the formal scanning, N linearly uncorrelated magnetic fields are sequentially applied after the end of one repetition period of a scanning sequence; T represents the number of head motion parameters, N, M and T satisfy N*M>=T, and N, M and T are all natural numbers greater than zero.The application has the characteristics of in-situ calibration, high time resolution and strong adaptability, and is suitable for magnetic resonance imaging in fast or continuous motion scenarios.

The utility model belongs to the technical field of pull heads, and particularly relates to a detachable pull head assembly which comprises a lower wing plate, an upper wing plate and a cap arranged on the upper wing plate, a pull piece is arranged on the cap, an assembly convenient to disassemble is arranged between the lower wing plate and the upper wing plate, an insertion hole is formed in the lower wing plate, an insertion column is fixed to the bottom of the upper wing plate, and the insertion column is fixed to the bottom of the upper wing plate. When the pull rod is pulled outwards, the pull rod drives the limiting sliding disc to slide in the limiting sliding cavity and compresses the spring, the limiting head moves along with the limiting sliding disc, at the moment, the limiting head is separated from the limiting hole, limiting between the limiting head and the inserting column is relieved, then the inserting column is pulled outwards and pulled out of the inserting hole, and disassembling of the pull head is completed. When the puller is damaged, the puller does not need to be integrally replaced, only damaged parts need to be independently replaced, and the disassembly process is convenient and fast.

The utility model discloses a kind of taper bearing pre-tightening force selected pad adjusting tools, including the detection seat of metal material, the detection seat lower end side is equidistantly provided with weight-reducing hole, outer ring press sleeve is nested and installed in the detection seat interior, and the outer ring press sleeve upper portion is provided with spacer, and the spacer and outer ring press sleeve between installation is used for keeping the relative rotation of both plane bearings, the detection seat upper surface is installed with the thread seat concentric with it, and the thread seat is fixedly installed between detection seat by the inner hexagon screw of its side penetration installation. This taper bearing pre-tightening force selected pad adjusting tool, adopt novel structure design, rotate by pressure rod link rod drive threaded pressure head, utilize the screw thread structure in threaded pressure head and thread seat to make threaded pressure head move downwards, so that threaded pressure head extrude spacer downwards, finally make spacer push outer ring press sleeve and pad piece are pressed tightly, staff can handheld operating device in this process, increase overall use applicability.

The utility model discloses an ironing head moving mechanism of a packing machine, which comprises a supporting mechanism, a pressing mechanism and a moving mechanism, the driving mechanism is connected with the supporting mechanism; the sliding mechanism is connected with the driving mechanism; the ironing head is arranged on the sliding mechanism; the driving mechanism comprises a driving motor connected with the supporting mechanism; the driving wheel is connected with a driving shaft of the driving motor; the rolling shaft is arranged at the non-circle-center position of the end face of the driving wheel; the sliding mechanism comprises a sliding seat connected with the rolling shaft; the sliding groove is formed in the sliding seat, and the rolling shaft is located in the sliding groove; the linear bearing is arranged in the moving direction of the ironing head, and the sliding base is connected to the supporting mechanism in a sliding mode through the linear bearing. In the utility model, the driving motor drives the driving wheel to rotate, so that the rolling shaft on the end face of the driving wheel applies force to the sliding chute, the sliding seat moves on the linear bearing, the ironing head moves back and forth, the structure is simple, the failure rate is low, and the cost is low.

A head assembly and a robot relate to the field of robot motion control. The head assembly comprises a bearing part, a first connecting rod and a head body, and the first end of the first connecting rod is rotationally connected with the bearing part; the head body comprises a head support, a first motor and a connecting piece. The head support is rotationally connected with the bearing piece. The first motor is fixedly connected with the head bracket; the connecting piece is fixedly connected with the driving end of the first motor and rotationally connected with the second end of the first connecting rod. The driving end of the first motor and the second end of the first connecting rod are connected to different positions of the connecting piece, and the head support and the second end of the first connecting rod are rotationally connected to different positions of the bearing piece. According to the head assembly and the robot, mechanical interference between the head and the neck structure during large-angle motion can be avoided while the neck space can be released, the maximum motion angle of the head nodding motion is increased, and therefore the sensing range and the motion expressive force of the robot are increased.

The utility model relates to a three -axis sample preparation device with grading limiting function relates to geotechnical mechanics experimental equipment technical field, it includes with centering the lock base for fixed three -piece mould of clamping groove, with the tamping hammer subassembly for tamping treatment to soil material in three -piece mould of hammer head and with the limiting component for the limiting of hammer head moving path of limiting disc and is used to three -piece mould's direction of moving away or close, limiting disc is along the moving direction of hammer head and adjusts position and restricts the moving end position of hammer head in stages, tamping hammer subassembly still includes the guide rod for connecting hammer head of wearing in limiting disc and the limiting baffle ring of setting at the side of guide rod away from hammer head, limiting baffle ring and limiting disc abut and are used for the downstroke of rigid locking hammer head. The utility model has the effect that improves the precision of actual compaction thickness in compaction process.

This utility model discloses a nut size sorting machine, relating to the field of nut size sorting technology. It includes a support box, a first conveyor belt, a second conveyor belt, a conveying channel, and a dispersing component. The outer wall of the support box has a first opening, and the inner wall of the first opening is through which the first conveyor belt is installed. Three second conveyor belts are installed on the inner wall of the support box, arranged in a stepped manner. This utility model utilizes a first motor that rotates while the nuts are being sorted, driving a striking head to rotate. The rotating striking head moves a baffle, which in turn moves a first sliding cylinder. The first sliding cylinder moves a connecting rod, which in turn moves a first spring. The movement of the first spring causes the connecting rod to move through a third opening, driving a dispersing rod. The dispersing rod disperses the nuts, preventing clumping, thus improving the sorting efficiency of the nut size sorting machine.

The invention discloses a dispensing machine and a dispensing method, and belongs to the technical field of dispensing. According to the scheme, in the initial calibration stage of the dispensing machine, the position of the dispensing machine is accurately adjusted through the micrometer of the left-right adjusting assembly and the micrometer of the up-down adjusting assembly, and the dispensing machine is moved to the dispensing preparation position; a mode of fixing a dispensing head and rotating a product is adopted, a rotation angle is set in a control system before dispensing, a controller automatically controls movement of a dispensing assembly and rotation of the product, and multiple circumferential dispensing is carried out on the product at a time through a plurality of glue outlet holes formed in the dispensing head; and after the product rotates to the preset rotation angle, the controller judges that dispensing is finished, the dispensing assembly is controlled to return towards the center of the product, and glue is prevented from forming drawn wires when the dispensing head moves upwards. According to the scheme, full-automatic one-time multi-circle dispensing can be achieved, the dispensing position is precisely controlled through the micrometer and the controller, automatic dispensing is achieved, the positioning precision is high, the glue amount is uniform, no wiredrawing exists at the sealing position, and the dispensing efficiency is high.

A liquid ejection device includes: a head including a nozzle surface in which a nozzle is opened, the head being configured to eject liquid from the nozzle; a standby cap that covers the nozzle by coming into contact with the head; a receiving unit that receives the liquid ejected from the nozzle; and a maintenance unit that performs maintenance of the head. The head moves in a first area, a second area, and a printing area by moving in a scanning direction, and performs printing on a medium by ejecting the liquid onto the medium while moving in the printing area. The printing area is located between the first area and the second area in the scanning direction. The standby cap and the accommodation unit are located in the first area. The maintenance unit is located in the second area.

The utility model discloses an online ultrasonic detection device for defect expansion of a bearing hole, and relates to the technical field of ultrasonic detection devices. Comprising a workbench, a detection frame is fixed to the top end of the workbench, a rotating frame is rotatably connected to the inner wall of the top end of the detection frame, a first motor is fixed to the top end of the detection frame, the output end of the first motor penetrates through the detection frame and then is fixed to the rotating frame, a second lead screw is rotatably connected between the inner walls of the two sides of the rotating frame, and a second motor is fixed to one side of the rotating frame; the output end of the second motor penetrates through the rotating frame and then is fixed to a second lead screw, and the outer wall of the second lead screw is in threaded connection with a second sliding block. According to the utility model, the cylinder drives the ultrasonic detection head to move downwards to enter a bearing hole for detection, when a problem is detected, the ultrasonic detection head moves upwards, the second rack drives the gear to rotate, the gear rotates to drive the first rack to move downwards, and when the cylinder drives the ultrasonic detection head to move upwards to a position above the bearing hole, the ultrasonic detection head continues to move.

The invention discloses a diamond arrangement machine facilitating diamond arrangement of special-shaped diamonds and a diamond arrangement method thereof.The diamond arrangement machine executes the following steps according to prefabricated patterns: a machine head selects the special-shaped diamonds needing to be sucked according to pattern design and moves the special-shaped diamonds to the position above a vibration tray of a diamond feeding device used for achieving feeding of the special-shaped diamonds; a camera on the machine head collects images of the special-shaped drills in the vibration charging tray; the machine head moves relative to the vibration tray, so that a suction head of the drill suction mechanism moves to the position of the special-shaped drill to be sucked, and the special-shaped drill is sucked; the machine head is designed according to patterns and moves above the platen, and the special-shaped drill is placed on the transfer paper with the glue to set point positions. No matter the orientation of the special-shaped drill is in any direction before the special-shaped drill is sucked by the suction head, the suction head can be driven by the angle adjusting motor to rotate by a corresponding angle, so that the orientation of the special-shaped drill after pattern arrangement is consistent with that of pattern design finally.

This utility model discloses a convenient gas pipeline support, specifically relating to the field of support technology. It includes a stamped, one-piece base and a support arm. The support arm is fixedly installed with a cross-shaped sliding groove, and a slider is slidably connected inside the cross-shaped sliding groove. Fixing holes are provided on both sides of the outer surface of the slider. In practical operation, the slider can move within the cross-shaped sliding groove. After movement, external bolts are inserted into the overlapping positioning and fixing holes to fix the moved slider. This allows for fine-tuning of the support ring's position after the base is installed. The angle of the support ring can be fine-tuned by the ball head moving within the ball seat and being fixed with fastening bolts. The support ring supports the gas pipeline, facilitating fine-tuning of its position and angle after installation for quick adaptation to subsequent pipeline connections.

The application discloses a silo device with a vacuum arch breaking function, which comprises a silo body, a discharge channel, a vacuum arch breaking mechanism and a gate valve; the silo body is used for storing materials and is provided with a feeding port, a discharging port and a ventilation opening communicated with the atmosphere; the upper end of the discharge channel is communicated with the discharging port of the silo body, and the lower end of the discharge channel is connected with the gate valve; an opening is arranged on the side of the discharge channel and is connected with the vacuum arch breaking mechanism; the vacuum arch breaking mechanism comprises a vacuum cylinder and a vacuum sealing head installed in the vacuum cylinder; when no material passes through the discharge channel, the gate valve is closed, the vacuum arch breaking mechanism is actuated, and the vacuum sealing head moves away from the discharge channel; compared with the stirring arch breaking, the core arch breaking mechanism of the application is driven by hydraulic pressure and will not be stuck due to insufficient driving force to drive rotation; the vacuum sealing head moves in a straight line and the friction force is constant, thereby avoiding vibration or shaking caused by transverse stress.

The invention relates to the technical field of defect detection, and discloses machined finished product surface defect detection equipment which comprises a detection table and a mounting seat fixedly mounted on the detection table, and a positioning sleeve is fixed to the outer wall of the mounting seat; the detection core rod is mounted in the positioning sleeve, and a detection head for defect detection is mounted at the end part of the detection core rod; the butt joint seat is fixedly installed at the end of the detection core rod, the outer wall of the butt joint seat is fixedly connected with a limiting protrusion, a spiral groove used for driving the detection core rod to rotate is jointly formed in the installation seat and the positioning sleeve, and the limiting protrusion is arranged in the spiral groove in a sliding mode. Through the arrangement of the spiral groove, the detection head on the detection core rod gradually goes deep into the interior of the tubular workpiece, and the detection core rod drives the detection head to rotate, so that the detection head moves forwards to detect the inner surface of the tubular workpiece, and the detection head rotates to realize the whole detection of the inner surface of the tubular workpiece.

This invention specifically relates to a double-sealed irregular-shaped ball valve, comprising a valve body, a valve stem rotation and lifting mechanism movably mounted on the top of the valve body, and a connector located at the bottom of the valve stem rotation and lifting mechanism. The irregular-shaped ball valve disc movably mounted within the valve body has a notch at the top for tensioning, a slotted plate at the bottom for easier deformation, and a side opening in the middle for rapid water flow switching. This results in an overall C-shaped irregular-shaped ball structure, giving it strong opening and closing capabilities. When the connector moves upward, the irregular-shaped ball valve disc contracts and deforms towards the center on both sides, and two inclined holes close the notch at the top of the irregular-shaped ball valve disc, thereby separating the second sealing gasket from the first sealing gasket. During the entire valve rotation and opening / closing process, there is no friction between the second sealing gasket of the irregular-shaped ball valve disc and the first sealing gasket of the connecting pipe, resulting in a long service life.