97 results about "Mechanical assistance" patented technology

The invention relates to the field of mechanical power assisting devices, in particular to a power assisting regulation and control method and system of a walker, a barrier-free walking process under the condition that a user wears the walker is detected, walking gait characteristics and muscle activity characteristics of the user are obtained, and a leg muscle activity state model of the user is constructed; detecting an obstacle avoidance walking process when the user wears the walker, and obtaining leg pressure characteristics of the user, so as to predict leg action information about to occur by the user; and based on the leg muscle activity state model and the leg action information, determining assistance demand information of the legs of the user so as to adjust the assistance effect provided by the walker to the legs of the user. According to the walking device, the leg assisting requirement can be accurately determined, multi-directional assisting support is provided for leg muscles, walking rehabilitation training is strengthened, and the assisting accuracy and reliability of the walking device are improved.

An automatic door opener, more particularly for use in a motor vehicle, has a housing, a plunger mounted to be longitudinally movable in the housing, and an electric plunger drive that is designed to move the plunger forward and back between a resting position, in which it is withdrawn into the housing, and an actuation position, in which it protrudes out of the housing. In addition to the electric plunger drive, a mechanical auxiliary drive, is provided that is designed, in the event of actuation, to be able to move the plunger from the resting position to the actuation position.

The invention provides a self-adaptive assistance system and method for adjusting an exoskeleton based on a sweat sensor, and the system comprises a sweat amount detection chip which is embedded into the surface of wearable flexible clothes, is in contact with the skin of a human body, and is used for converting the detected sweat amount into an electric signal, and further converting the electric signal into a control signal; the knapsack comprises a control system, a driving system and a sensing system, and is worn on the trunk of the human body after being connected with the wearable flexible clothing; the power assisting device comprises a power assisting boot which is worn on the foot of the human body and connected with the driving system through a Bowden cable; and the specific output value of the power assisting device is controlled through the control signal. Dynamic matching of exercise intensity and mechanical assistance is achieved through an amplification control mechanism driven by sweat amount, gait phase compensation fed back by plantar pressure is combined, the energy utilization efficiency is improved by 20% or above, the problem that a traditional exoskeleton physiological-physical interface is disjointed is effectively solved, and the energy utilization rate is increased by 20% or above. The assisting synchronism is improved, and meanwhile the wearing comfort degree and the motion freedom degree are remarkably improved.

The invention relates to the technical field of fabric detection, in particular to a fabric breathability detection device based on an intelligent sensor, which comprises a production line support, a regulation and control assembly and a mechanical auxiliary butt joint assembly, a plurality of fabric guide rollers are horizontally and rotatably arranged on the production line support, and two control boxes are horizontally and symmetrically arranged on one side of the production line support. A detection assembly capable of moving horizontally is arranged on a production line path for continuous production and rolling of the fabric, when the fabric passes through an autorotation sleeve of the detection assembly, the passing fabric can be clamped by moving a second supporting beam, then adaptive horizontal movement is conducted along with rolling movement of the fabric, and during the movement, the detection assembly is not prone to falling off. According to the fabric air permeability detection device, air permeability detection of fabric is completed, multi-point-position selective detection can be conducted on the fabric under the cooperation effect of the regulation and control assembly and the intelligent sensor, in addition, the mechanical auxiliary butt joint assembly can conduct auxiliary positioning on an air supply detection groove, a detection air groove and an air hole for air permeability detection, and it is ensured that detection is conducted stably.

The application relates to the field of computer-aided technology and specifically discloses a vision-impaired drawing assistance system based on physiological signals and behavior analysis, aiming to solve the problems of mechanical assistance process and poor interactive experience in the prior art. The system comprises a physiological signal acquisition module for acquiring user concentration and emotion, a drawing behavior perception module for capturing brush pressure and trajectory, a multi-modal data fusion and intention analysis module for fusing data and analyzing creation intention, an adaptive guidance strategy generation module for generating personalized guidance strategies, and a multi-channel feedback execution module for providing voice, tactile and sound feedback. Through the cooperative work of the above modules, the system can realize real-time perception of user state and intention, dynamically adjust multi-sensory assistance guidance, and thus improve the naturalness of interaction and the assistance effect.

The invention herein relates to a method and device for sharpening the protrusion elements, or teeth, of a serrated blade, specifically that of a motorized hedge-trimmer device. A plurality of teeth of a serrated blade may be sharpened continuously by the mechanical assistance of this invention. This method and device of this invention utilize pre-adjustment features that achieve consistent, accurate results.

The utility model discloses a hair curler accessory applied to handheld hot air outlet equipment, and relates to the technical field of living electric appliances and parts thereof. A plurality of air outlet channels penetrating through the inner side and the outer side of the outer air outlet cylinder component are formed in the outer air outlet cylinder component in the circumferential direction, and the air outlet channels are located on the outer side of the outer air outlet cylinder component and provided with strip-shaped air outlets. The strip-shaped air outlets are configured to be inclined to the axial direction of the outer air outlet cylinder component; a plurality of air guiding-combing composite teeth are arranged at the positions, at the strip-shaped air outlets, of the outer air outlet cylinder component, and the air guiding-combing composite teeth are arranged to be inclined to the radial direction of the outer air outlet cylinder component. The utility model mainly solves the problem of how to provide a hair curler accessory with a more optimized structure for handheld hot air outlet equipment. The hair curler accessory applied to the handheld hot air outlet equipment is provided with a more reasonable and efficient fluid mechanics structure and a more reasonable and efficient mechanical auxiliary structure, and better hair curling modeling capacity and hair care performance can be obtained.

According to the multi-angle adjustable embroidery positioning clamp, a user places embroidery cloth in the positioning clamp assembly, the positioning clamp provides clamping force, a clamping space is formed, and the cloth is reliably fixed. A user can adjust the angle of the positioning clamp assembly by rotating the rotating piece, and due to the fact that the rotating piece is arranged in the rotating groove and rotationally connected with the rotating part, the rotating angle of the rotating piece is stable and controllable. After the cloth embroidery angle is adjusted to an ideal angle, the rotating piece is locked relative to the rotating part by screwing the locking piece, so that the cloth embroidery angle is accurately and stably kept. A worker does not need to frequently rotate cloth with hands and only needs to properly adjust the angle in the clamp, hand holding is replaced with the clamp, mechanical assistance is achieved, and the physical burden of the embroidery worker is remarkably relieved. By means of the structure of the rotating piece and the rotating groove, 360-degree adjustment of the angle of cloth can be achieved, the locking piece is matched, the angle is stable and reliable after being fixed, and the phenomenon that the embroidery quality is affected by angle deviation is avoided.

The invention belongs to the technical field of nuclear power station pre-service and in-service inspection, and particularly relates to a multi-joint type main pump television inspection device. Comprising a mechanical device, a control system and a mobile power supply. The mechanical device comprises a lifting main body, a translation assembly and a visual assembly, the mobile power supply adopts a 220V-20AH standard high-power storage battery, and the control system performs motion control on the mechanical device. The method has the beneficial effects that the workload is greatly reduced, the foreign matter risk and the foreign matter prevention registration time are reduced, and the working efficiency is improved; the inspection device is light in weight and detachable, so that the inspection device is convenient to transfer and install, and auxiliary installation of other personnel and large machinery is not needed any more; the telescopic arm of the equipment can rotate by 90 degrees, so that the inner wall and the pipeline of the main pump can be inspected at the same time; and an image recognition algorithm realizes automatic detection of foreign matters and defects, and reduces and makes up errors caused by human factors.

This utility model discloses an all-terrain mobile equipment transport flatbed vehicle adapted to complex terrain, relating to the field of transport flatbed vehicle technology. This all-terrain mobile equipment transport flatbed vehicle includes a flatbed vehicle with a cargo box mounted on its upper end and a drive box mounted on its rear side. The loading and unloading assembly includes a first tailplate, a first hydraulic rod hinged inside the drive box, a through groove on the rear surface of the drive box, and the output end of the first hydraulic rod hinged to the first tailplate. A tailplate connecting block is fixedly connected to the upper end of the first tailplate. A second tailplate is provided above the first tailplate and hinged to the tailplate connecting block. A second hydraulic rod is hinged to the rear side of the first tailplate, and the output end of the second hydraulic rod is hinged to the lower end of the second tailplate. The tailplate, controlled by the hydraulic rod, can flexibly adjust its angle, and the guide block assists in the sliding of the equipment. A single person can complete the loading and unloading of the equipment, improving efficiency compared to traditional manual loading and unloading, and is especially suitable for outdoor scenarios without mechanical assistance.

The invention relates to the technical field of dredging for blocked sewage pipelines, and discloses a dredging method for blocked sewage pipelines. The pipe diameter, the blocking length and the circumferential thickness are sequentially and accurately measured, and the volume is calculated through numerical integration; calibrating the pH sensor, and preparing a strong acid and strong alkali reagent; carrying out experiment calibration on dissolution kinetic parameters and constructing a model; establishing a pH oscillation dredging model to determine the optimal frequency and duration; a multi-stage acid-base flow and proportion injection plan is made, and accurate injection is monitored in real time in combination with discrete pump control; after chemical cleaning, clean water is used for flushing and residual volume is measured, and automatic mechanical assistance or manual treatment is carried out during overrun. According to the scheme, blockages are quantified, and sensing and dispensing precision is guaranteed; the passivation layer is broken through dynamic prediction and oscillation injection, and the dissolution efficiency is improved; closed-loop verification and remediation ensure thorough dredging, the dosage of chemical agents and secondary pollution are remarkably reduced, and the operation reliability and maintenance convenience of the pipeline are improved.

The utility model discloses a car frame number carving jig which comprises a pneumatic carving assembly, supporting plates are symmetrically fixed to the bottoms of the left side and the right side of the pneumatic carving assembly, the bottoms of the supporting plates are fixedly connected with pedestals, and cushion plates are arranged under the pedestals. L-shaped grips are symmetrically fixed to the tops of the left side and the right side of the pneumatic carving assembly, first air cylinders are symmetrically fixed to the rear side of the top of the pneumatic carving assembly left and right, second air cylinders are fixedly connected to the output ends of the rear sides of the first air cylinders correspondingly, and L-shaped frame rods are fixedly connected to the output ends of the bottoms of the second air cylinders correspondingly; a clamping plate is fixedly connected to the upper side of the front end of the L-shaped frame rod, a first control button and a second control button are assembled on the left side and the right side of the rear side of the top of the L-shaped grip correspondingly, mechanical auxiliary fixing is completed, manpower consumption is reduced, a more stable and continuous fixing effect is provided, and more frequent and accurate carving operation of the pneumatic carving assembly is facilitated.

The mechanical auxiliary teaching aid comprises a rack, a simulation feeding mechanism and a stamping mechanism, the rack is of a rack structure, an opening is formed in the front side of the rack, visual windows are arranged on the periphery of the outer side of the rack, and a visual control host is arranged on the side edge of the opening in the front side of the rack; the simulation feeding mechanisms and the stamping mechanism are arranged in the height direction of a step plate on the inner side of the rack in the conveying and machining direction, the number of the simulation feeding mechanisms is at least two, and each simulation feeding mechanism comprises a material library and a feeding mechanical arm; the stamping mechanism comprises a pedestal, a stamping electric cylinder, an upper template, a lower template, a damping guide column and a multi-parameter sensor acquisition module, the stamping electric cylinder is arranged on the top side of the pedestal, and the shaft end of the stamping electric cylinder is connected with the upper template. According to the invention, through the ingenious combination of the simulated feeding mechanism and the stamping mechanism, the highly-simulated stamping process simulation is realized, and the authenticity and effectiveness of teaching are greatly improved.

This utility model discloses a quick-release assembly for pipeline flanges, applicable to the field of mechanical auxiliary tools. Through the coordinated arrangement of an mounting ring, a transmission mechanism, and multiple fastening components, the transmission mechanism enables multiple telescopic parts to extend and retract synchronously, thereby causing the corresponding fastening parts to move synchronously closer to or further away from the flange. This allows two fastening wedges in the fastening parts to clamp or loosen the two flanges, achieving quick assembly and disassembly between them. Compared to sequentially tightening or loosening multiple bolts surrounding the flange, this quick-release assembly is much more convenient to operate. By integrating a limiting slider on the fastening wedge and allowing it to slide along the axial direction of the mounting ring inside the mounting base, combined with a bidirectional threaded rod, the distance between the two fastening wedges can be adjusted by rotating the bidirectional threaded rod, accommodating flanges of different thicknesses and making the quick-release assembly more versatile.

The utility model discloses a kind of yaks fattening and shipping mechanical auxiliary devices, it is related to yak shipping technical field, including loading and unloading platform, the top end of loading and unloading platform is fixedly connected with extension plate, and extension plate is overlapped on the bottom wall of carriage, the inside of extension plate is inserted with insert plate, and the end of insert plate is fixedly connected with U block, the inside of U block is distributed with moving plate. The utility model is provided with U block and moving plate, i.

The present invention discloses a detachable air suspension fan bearing, which relates to the technical field of bearings and includes four base foil parts. A wave foil part is provided on the inner surface wall of each base foil part. A top foil body is arranged between the inner surface walls of the four wave foil parts. A notch is formed on the inner surface wall of the top foil body. An extended top foil part is fixedly installed at one end of the top foil body. The extended top foil part is movably placed inside the notch. A plurality of gas guiding joints are fixedly communicated with the outer surface wall of the extended top foil part. A plurality of holes are formed inside the four wave foil parts. A group of exhaust air bins are fixedly installed on the inner surface walls of the top foil body and the extended top foil part. A group of air inlet holes are formed inside each exhaust air bin. By adopting a combination of information monitoring and mechanical assistance, the bearing is enabled to have the ability of intermittent air guiding, avoiding the wave foil parts being in a squeezed state for a long time, preventing the generation of unidirectional external force impact, reducing the deformation probability of the wave foil parts, and prolonging the service life of the bearing.

The invention discloses a mechanical auxiliary device for a new energy automobile charging pile, and relates to the technical field of charging piles, the mechanical auxiliary device comprises a shell, a door is installed on the shell, the mechanical auxiliary device further comprises an electric power bin and a rotating pipe, the electric power bin is integrally formed on the door and is electrically connected with a charging wire, and the rotating pipe is rotatably connected to the top of the shell; the end, away from the power bin, of the charging wire penetrates through the interior of the rotating pipe and is electrically connected with a gun head. And the protection assembly comprises a suction pump mounted in the shell. The rotatable and telescopic rotating pipe is arranged in an overhead mode, the cable is prevented from hindering passing of people, convenience and the space utilization rate are both considered, the cable is arranged in the rotating pipe in a penetrating mode, the cable is effectively prevented from being dragged on the ground or suspended at a low position, people nearby are prevented from stumbling when crossing the cable at the low position, the people nearby are protected, and the gun head is prevented from being pulled; a pet is prevented from biting the cable; by arranging the air bag, the gun head is shielded after the air bag is inflated and expanded, and children are effectively prevented from being scalded when touching the gun head.

The present disclosure relates to an absorbent article including a first belt and a second belt having a weak path. An accessible opening may also be positioned within the first and / or second belt, and a fastening component may be connected to the belt adjacent to the accessible opening. Such a weak path configuration provides a mechanism that allows the elastic belt of the diaper pants to be relatively easily torn along the weak path when removing the diaper pants from the wearer, and the fastening component may provide a mechanism that helps to maintain the used diaper pants in a disposal configuration. The absorbent article may also include an opening facilitation mechanism, such as an opening operation display and an opening mechanical assistance, and combinations thereof. Such an opening facilitation mechanism may help the user to successfully determine the position and / or function of the fastening component and the weak path, and / or to successfully complete the pants opening operation.

The invention discloses tire dismounting and mounting equipment for a loader. The tire dismounting and mounting equipment comprises a hydraulic system, a tire dismounting and mounting mechanism and a rim clamping device, the hydraulic system comprises a hydraulic cylinder, a hydraulic station and an electrical control system; the tire dismounting mechanism comprises a fixed support, a fixed bracket, a steel ring dismounting head, a movable bracket and a U-shaped tire fixture; the rim clamping device comprises a lead screw, a nut, a connecting rod, a clamping tongue and a support. Through cooperation of the hydraulic system, the tire dismounting and mounting mechanism and the rim clamping device, the tire dismounting and mounting equipment has the following advantages that (1) the equipment can be operated by a single person, other mechanical assistance is not needed, a single person of an operator can complete tire dismounting and mounting, and time and labor are saved; safety and controllability are achieved, all parts are matched accurately in the operation process, potential risks such as easy falling of steel wire rope binding are avoided, and personnel safety is guaranteed; and (3) the efficiency is improved: the disassembly and assembly time of the loader tire is obviously shortened, and the labor intensity of maintenance operation is reduced.

This invention relates to the field of nursing rehabilitation technology, and in particular provides a rehabilitation device for stroke hemiplegia care. This rehabilitation device includes a rehabilitation bed frame, a massage adjustment component, a lower limb adjustment component, and a lower limb training component. This invention enables mechanically assisted adjustment for stroke patients to smoothly transition from a supine position to a sitting and standing position, effectively reducing the workload of rehabilitation technicians, providing patients with self-rehabilitation training methods, and providing massage rehabilitation for the back and buttocks. It also allows for precise adjustment of massage intensity to help promote blood circulation, relieve muscle stiffness, reduce pain, and promote rehabilitation. Furthermore, it provides mechanical assistance for rehabilitation training such as bridging exercises, lower body abduction training, standing training, and plantar flexion training, thereby ensuring the accuracy of the patient's movements, avoiding distorted movements, and maximizing the rehabilitation effect.

The utility model discloses a pipe fitting drilling auxiliary positioning mechanism for a lathe, and relates to the technical field of pipe fitting processing, the middle parts of supports of two groups of side supporting frames are symmetrically provided with propelling position correction assemblies in a penetrating manner, the top end of a propelling rod of each propelling position correction mechanism is provided with a clamping seat, the upper end of a support of a tool frame is provided with a bottom supporting position correction assembly, and the bottom supporting position correction assembly is provided with a clamping seat. And a bottom support seat horizontally opposite to the clamping seat is mounted at the top end of a lifting rod of the bottom support correcting assembly. According to the design, on the basis of mechanical telescopic butt-clamping correction of the propelling correction assembly, horizontally opposite clamping seats are pushed to mechanically butt-clamp and fix a pipe fitting in a butt-clamping displacement mode, and when drilling is carried out after butt-clamping, the pipe fitting is subjected to mechanical horizontal displacement correction on the basis of the bottom support correction assembly and under the top support of the bottom support seat pushed by the electric push rod; the horizontal jacking and supporting device has the advantages that the mechanical auxiliary positioning performance is good, the efficiency is higher, and the auxiliary positioning is more stable.

The invention relates to electromagnetic exploration equipment, and particularly discloses a ground transient electromagnetic exploration device which comprises a movable frame (1), a receiving and transmitting coil (2), a transient electromagnetic instrument (3) electrically connected with the receiving and transmitting coil (2) and an adjusting mechanism, and the receiving and transmitting coil (2) is connected with the movable frame (1) through the adjusting mechanism. The adjusting mechanism comprises a horizontal angle adjusting mechanism (6) used for adjusting the horizontal angle of the transmitting-receiving coil (2), a pitching angle adjusting mechanism (5) used for adjusting the pitching angle of the transmitting-receiving coil (2) and a coil lifting mechanism (7) used for adjusting the relative height between the transmitting-receiving coil (2) and the ground. According to the ground transient electromagnetic exploration device, a worker can be mechanically assisted to move and adjust the receiving and transmitting coil, the working intensity of transient electromagnetic exploration of the worker is reduced, the working efficiency is improved, the exploration error is reduced, and the data comparability and the accuracy of an explanation result are improved.

The invention relates to the technical field of feed mixing, and discloses a feed mixing assembly for sugar-reducing egg production and a mixing technology thereof.The feed mixing assembly comprises a feed mixing device, a rack is arranged on one side of the feed mixing device, two feeding rods capable of moving up and down are arranged on the rack, and the two feeding rods are each of a hollow structure; a feeding mechanism is arranged on the rack and comprises a lifting assembly, a rotating assembly and a swinging assembly. Wherein the lifting assembly is arranged on the rack and used for lifting the two feeding rods. The feeding mechanism is used for carrying out auxiliary feeding on blocky feed, the working efficiency can be greatly improved through mechanical auxiliary feeding, compared with manual carrying and mechanical equipment, the feeding process can be completed more rapidly and accurately, a large amount of manpower and time are saved, the production efficiency can be improved, and larger-scale feed production is achieved.

This utility model discloses an upper limb exoskeleton, relating to the field of industrial assistive device structural design technology. The upper limb exoskeleton includes: a shoulder restraint, a waist restraint, an upper arm fixation, a shoulder rotation mechanism, and an assist mechanism. The lower side of the shoulder restraint is connected to the waist restraint, and an assist mechanism is provided below the shoulder restraint. The lower end of the assist mechanism is fixedly connected to the waist restraint, and the upper side of the assist mechanism is fixedly connected to the shoulder rotation mechanism, which is connected to the upper arm fixation. This upper limb exoskeleton provides support and fixation for the user's upper body through the shoulder and waist restraints. To achieve a lightweight design, assist mechanisms are provided on both sides of the shoulder restraint. The rotation of the shoulder rotation mechanism causes the internal tension springs of the assist mechanism to elastically deform and return to their original position, providing mechanical assistance for shoulder movement and ensuring the stability of the assist mechanism. It is adaptable to users of different body types, ensuring flexible movement with multiple degrees of freedom.

The embodiment of the invention discloses an integrated spinal cord electrical stimulation system, a spinal cord electrical stimulation method, a medium and a product. According to one specific embodiment, the system comprises a brain-computer device, a spinal cord stimulation device, an exoskeleton device and a main control unit, the brain-computer device is configured to collect electroencephalogram signals; the spinal cord stimulation device is configured to generate an electric pulse and transmit the electric pulse to a target spinal cord segment through the spinal cord stimulation electrode; the exoskeleton device is configured to start a motor of a corresponding joint to execute a preset action; the main control unit is configured to obtain an electroencephalogram signal; generating motion intention information; generating control parameter information; controlling a spinal cord stimulation device to execute spinal cord electrical stimulation operation according to the spinal cord electrical stimulation parameter information; according to the exoskeleton action parameter information, the exoskeleton device is controlled to execute exoskeleton driving operation. According to the embodiment, parameter adjustment can be carried out by utilizing the motion intention of the user, mechanical assistance of the exoskeleton is well coordinated, the applicability and experience of the user are improved, and user operation is simplified.

The utility model discloses an automatic cylindrical material feeding device which comprises an integral machine frame and further comprises a feeding groove used for containing cylindrical materials, side walls are arranged on the two sides of the feeding groove, and a bottom plate of the feeding groove inclines downwards in the feeding direction. The pushing mechanism is arranged at the end, away from the feeding port, of the feeding groove and used for pushing the cylindrical materials upwards to the discharging platform; the discharging mechanism is arranged on the discharging platform, comprises an inductor and a discharging baffle and controls the cylindrical materials to enter the next station. According to the automatic feeding device for the cylindrical materials, the cylindrical materials can roll to the next mechanism along the inclined bottom plate after being placed in the feeding groove, manpower or other mechanical assistance is not needed, automatic feeding is achieved through the material pushing mechanism, manual operation is not needed, the structure is simple, feeding is stable, and the automatic feeding device is suitable for materials of various sizes and specifications; after the materials reach the discharging mechanism, discharging is controlled through an inductor and a baffle, and automation of conveying and machining of the cylindrical materials is achieved.

The mechanical auxiliary clamp for the polishing machine belongs to the technical field of clamps and comprises a mounting plate, a transmission mechanism and a fixing mechanism, mounting grooves are symmetrically formed in the upper surface of the mounting plate, mounting blocks are movably arranged in the mounting grooves, the fixing mechanism is arranged at the bottoms of the mounting blocks, and a supporting plate is fixedly connected to the tops of the mounting blocks. Fixing plates are fixedly connected to the two sides of the top of the supporting plate, and transmission mechanisms are arranged in the fixing plates. Through the structural design of the transmission plate, the clamping block and the transmission mechanism, a sample can be conveniently clamped and fixed, the operation is simple, the fixing effect is good, the polishing efficiency of the polishing machine can be improved, the problem that the sample is clamped through mutual matching of a fastening bolt and a fastening nut is solved, and although the operation is simple, the clamping effect is good. However, fastening bolts and fastening nuts need to be frequently disassembled and assembled for fixing each sample, the operation is troublesome, and the polishing efficiency of the polishing machine is reduced.

The application provides an angle-adjustable interventional puncture auxiliary support, and relates to the technical field of puncture auxiliary supports.The support comprises a sliding rail, a sliding block, an adjusting mechanism and a puncture mechanism.The adjusting mechanism is composed of a linear component and a circumferential component.The linear component is connected with an inner sleeve, a reverse sleeve, a horizontal rod, a bidirectional rod, a round head, a vertical rod, a stop sleeve and a lifting plate to realize linear adjustment and linkage locking in the horizontal and vertical directions.The circumferential component is connected with a circular rod, a follow-up sleeve, a circular ring, a screw sleeve, a compression spring, a bottom disc, a top disc and a push spring to realize adjustment and synchronous locking of the angle and position in the circumferential direction.The puncture mechanism is connected with an intermediate sleeve, an extension rod, a double-sided sleeve, a center sleeve, a matching sleeve and a laser lamp to provide puncture needle matching and light path guiding.The support can realize multi-degree-of-freedom accurate setting, combined quick locking and visual calibration of the puncture angle and position, and provides stable, accurate and quantifiable mechanical assistance for interventional puncture operation.

The disclosed technology relates to a passive ventilation system for buildings, designed to enhance air circulation and reduce reliance on mechanical ventilation systems. The system features a hollow central column with air outlets on its outer surface to capture air from the building interior. An air nozzle within the column accelerates the airflow, directing it through an upper and lower panel that form an air passage, creating a low-pressure zone to expel air passively. The system integrates seamlessly into buildings, with a central column foundation, a base platform, and parallel floor slabs. The air outlets are strategically located between the slabs, enabling air circulation from multiple floors through the central column, which expels it to the exterior without mechanical assistance. This innovative design ensures improved thermal comfort and energy efficiency, making it ideal for use in commercial, residential, and office buildings.