14results about How to "Reduce mechanical structure" patented technology

A partition plate is integrally formed between an acting side wall and a connecting boss, so that an air inlet area and an air outlet area which are located on the two sides of the partition plate and isolated from each other are formed in a rotor, and a plurality of supercharging fan blades are arranged in the air inlet area and used for centrifugal rotation to achieve air flow supercharging; the roots of the plurality of pressurizing fan blades are connected with the circumferential surface of the connecting boss and are arranged around the autorotation center at equal angles, so that gradually-expanded channels are formed among the pressurizing fan blades, a circle of confluence channels are arranged in the air inlet area along the inner side edge of the acting side wall, and the confluence channels are communicated with the gradually-expanded channels; the two sides of the rotor of the rotor engine are partitioned through the partition plates, normal air inlet and exhaust functions are guaranteed, the air inlet side of the rotor is provided with the supercharging fan blades rotating synchronously with the rotor, air in the air inlet area is entrained through rotation of the rotor, centrifugal supercharging airflow is formed through driving, the air inlet pressure is effectively increased, and then the air inlet amount of a combustion chamber is increased.

The utility model discloses a nanosecond electromagnetic pulse source high-voltage trigger switch, which comprises an insulating shell, and a push-pull electromagnet and an elastic electrode are arranged in the insulating shell. The push-pull electromagnet is electrically connected with the control power supply port; the elastic electrode is electrically connected with the input electrode; the output electrode is fixed on the insulating shell, one end is inserted into the insulating shell and positioned in front of the elastic electrode, and the other end extends out of the insulating shell and is connected with the resistor element; and the output end of the push-pull electromagnet is insulated from the elastic electrode, and pushes the elastic electrode to move towards the output electrode, so that non-contact discharge is realized. The fast leading edge high-voltage electromagnetic pulse trigger circuit has the advantages of being fast in response, high in reliability, easy to control and maintain and the like, has the advantages of being low in cost and high in adaptability economically, and is very suitable for being applied to occasions where fast leading edge high-voltage electromagnetic pulses are needed to be triggered.

The utility model discloses a high-temperature flue gas circulation ejector for a waste incineration system, which comprises a machine base, a driving mechanism, an ejector shell and a conical shrinkage pipe are arranged on the machine base, and a flue gas inlet and a flue gas outlet are arranged on the ejector shell; the conical shrinkage pipe is connected with the ejector shell, the large-caliber end of the conical shrinkage pipe is communicated with the flue gas outlet, and the small-caliber end of the conical shrinkage pipe is provided with a flue gas injection pipe; a rotatable driving main shaft is arranged in the ejector shell, the output end of the driving mechanism is connected with the driving main shaft, the driving mechanism can drive the driving main shaft to rotate, the driving main shaft is sleeved with spiral fan blades, and the spiral fan blades are used for blowing air towards the smoke outlet. According to the utility model, the residence time of flue gas in the furnace can be prolonged, so that harmful substances in the flue gas can be fully decomposed; flue gas is injected, turbulent mixing of the flue gas and oxygen in the combustion chamber is enhanced, and decomposition of harmful substances is accelerated; the whole structure is compact, and placing, carrying and maintaining are convenient.

The utility model relates to a kind of medical mechanical claw hand, including handle, the left side rotation of handle is equipped with clamping finger, the top of handle is equipped with transition connecting box, the top of transition connecting box is fixedly installed with bent pole, the inside of transition connecting box is provided with locking assembly, the side fixedly installed with extension rod of bent pole away from transition connecting box.This medical mechanical claw hand, by setting transmission work component, cooperate with finger shaft and winding wheel etc., only need to be by thumb and index finger to be inserted into the clamping finger on handle, control the opening and closing of clamping finger, it can be controlled by finger shaft etc. Structure to control clamping tooth plate work, by the above setting, not only the required mechanical structure is less, and operation is simple, reduce its upper hand threshold, reduce minimally invasive surgery training cost, improve surgical efficiency, with practicality, by setting locking assembly, realize the locking and relaxation of left and right swing and pitch angle during the operation of the device.

The utility model relates to a powdery material discharging device which comprises a scraping mechanism, a material bin and a discharging pipe connected to the bottom of the material bin. The scraping mechanism comprises a scraping plate, a connecting ring and a driving assembly, the connecting ring is arranged in a butt joint gap between the material bin and the discharging pipe, the inner ring of the connecting ring is connected with the scraping plate, and the driving assembly drives the connecting ring to drive the scraping plate to rotate by being attached to the inner wall of the discharging pipe. The discharging device has the advantages that the scraping plate is arranged inside the discharging pipe, the driving assembly is arranged outside the discharging pipe, the scraping plate and the driving assembly are connected through the connecting ring, the connecting ring plays a sealing role, the purpose of driving the scraping plate to rotate to scrape materials can be achieved, only the scraping plate of the discharging device is arranged inside the discharging pipe, and the discharging device is simple in structure and convenient to use. Mechanical structures in the discharging pipe are reduced, and unsmooth discharging caused by excessive mechanical structures is avoided.

The utility model discloses a kind of car wiper of easy installation, it includes: quick-release wiper support rod and support rod connecting block, the quick-release wiper support rod lower end inner wall is fixedly connected with support rod connecting block, the support rod connecting block inside is hollowed out and is equipped with drainage facility, support rod connecting block middle lower end is fixedly connected with connecting bearing, the connecting bearing lower end is fixedly connected with car wiper, by: quick-release wiper support rod upper end setting press and anti-escape buckle device, portable quick removal and installation operation to support rod connecting block are realized, support rod connecting block is provided with elastic buckle device, integrated connection design saves the installation of component, help machine automation production, reduce manufacturing cost and maintenance cost, and support rod slide rail inside is made to reduce hollowing and internal drainage processing, reduce motor operation load, simultaneously avoid internal waterlogged rust problem.

The invention discloses a gas turbine aero-engine guider blade length adjusting device and a test method, and belongs to the technical field of variable cycle engines. The adjusting device comprises a driving wheel disc, an inner ring frame, an outer ring sealing frame, guider blades, a transmission connecting rod, a sliding sealing piece and other structures, and the driving wheel disc rotates to pull the transmission connecting rod and the guider blades, so that the guider blades slide in the inner ring hollowed-out holes and the outer ring hollowed-out holes. Length adjustment of the guider blade in the radius direction of the inner ring and the outer ring can be achieved, self-locking of other degrees of freedom is completed through the structure, the minimum stroke and the maximum stroke of the guider blade are limited through cooperation of the guider blade margin plate base and the inner ring and the outer ring, and interference clamping stagnation does not exist in the working process of all parts of the adjusting mechanism. The section area of the turbine runner is changed by adjusting the extending length of the guider blade, so that the gas flow rate in the runner is changed, the rotating speed of the turbine rotor is controlled, and the purpose of variable working condition adjustment is achieved.

The application provides a variable dihedral angle inflatable folding wing based on an electric response shape memory polymer and a control method, which comprises a wing shell, a control system and a pump; the wing shell comprises a framework, an elastic body electrothermal layer and a flexible skin, the framework comprises a wing rib and a spar, and the spar is provided with an electric response shape memory polymer; an upper air bag and a lower air bag which are not conductive to each other are symmetrically installed inside the wing contour between adjacent wing ribs; adjacent upper air bags are connected to each other, and adjacent lower air bags are connected to each other; the upper air bag and the lower air bag at one end of the wing contour are connected with the pump respectively; the control system controls the electric response shape memory polymer to conduct electricity, so that the spar generates thermal deformation; and the control system controls the pump to make the upper air bag or the lower air bag negative pressure, so as to change the upper or lower dihedral angle of the wing. The application can realize variable dihedral angle under different flight requirements.

A portable stray light elimination multi-spectral fundus camera device comprises an illumination system, an imaging system and an image acquisition device located on the same optical axis; the illumination system comprises a light source, a scattering plate, a light collecting lens, a first polarizing plate, a condensing lens and a beam splitter arranged in sequence; the imaging system comprises a front objective lens, a second polarizing plate and a relay lens arranged in sequence; the first polarizing plate and the second polarizing plate are arranged for vertical polarization; the beam splitter is located between the second polarizing plate and the front objective lens, and the image acquisition device is located outside the front objective lens; the light source emits initial light, which passes through the scattering plate, the light collecting lens, the first polarizing plate and the condensing lens in sequence, reaches the beam splitter, and then reflects to the front objective lens, and then enters the fundus; the reflected light of the fundus reaches the beam splitter through the front objective lens, and then is transmitted to the second polarizing plate, and then enters the image acquisition device through the relay lens. The overall structure of the present invention is simple and the size is small, and the cost is low, which is suitable for promotion.

The utility model relates to a clamp spring assembling tool. The press-fitting device comprises a press-fitting base used for placing a workpiece to be assembled; the pressing assembly is used for limiting the snap spring mounting groove of the workpiece to be assembled in an assembling area; the material placing assembly comprises a vertical guide block, to-be-assembled clamp springs and a pressing block, wherein the to-be-assembled clamp springs are arranged on the vertical guide block in a sliding and stacked mode, and the pressing block is arranged on the vertical guide block in a sliding mode and abuts against the tops of the stacked to-be-assembled clamp springs in a pressing mode; and the pushing assembly comprises a telescopic pushing plate, a pushing channel is formed between the bottom of the vertical guide block and the assembling area, and the pushing plate can push the assembling snap spring at the bottommost part into the snap spring mounting groove along the pushing channel. The utility model provides a clamp spring assembly tool which can reduce the cost of clamp spring assembly, improve the assembly efficiency and reduce potential safety hazards.

The present invention provides a bidirectional powder spreading device, method and 3D printing equipment based on a single powder bin, comprising: a powder bin capable of causing a portion of powder to overflow under the action of a powder supply lifting device; a powder spreading part that transports the overflowed powder in a direction away from the powder bin; a forming bin composed of a powder storage part and a forming platform arranged in the middle of the powder storage part, the powder spreading part being capable of conveying the powder to the forming platform through the powder storage part close to the side of the powder bin in the powder spreading direction and continuously conveying a portion of the powder to the powder storage part away from the side of the powder bin, and reversely conveying the powder formed on the powder storage part away from the side of the powder bin to the forming platform in the opposite direction of the powder spreading direction. The powder spreading device of the present application realizes bidirectional powder spreading in the case of a single powder bin, while further reducing the distance of reverse powder spreading, improving the efficiency of powder spreading, and greatly reducing the mechanical structure of multiple powder bins.

The invention discloses a lithium battery cell thermal runaway detection device, and belongs to the technical field of power battery thermal runaway prediction. A row channel control circuit and a column channel control circuit are arranged at the row channel of the adjacent battery cells, and the row channel control circuit and the column channel control circuit comprise a gas sensor; the U-shaped sliding rail is arranged on one side of all the battery cells distributed in rows and is provided with a movable fan; the first movable wind shield is mounted at one corner, close to a battery tab, of each battery cell except the last column of battery cells; the second movable wind shield is mounted at one corner, opposite to the first movable wind shield, of each battery cell except the first column of battery cells, and a reflector is embedded on the surface of the second movable wind shield; the third movable wind shield is mounted at one corner, close to the battery tab, of the last column of battery cells, and a reflector is embedded on the surface; the LED lamps are mounted on the side walls of the lithium batteries opposite to the channels in each row, and a photodiode is mounted below each LED lamp. According to the invention, rapid detection and accurate positioning of the out-of-control battery cell are realized.

The utility model discloses a turnover structure for packaging bag processing, which relates to the technical field of packaging bag production and comprises a belt conveyor, a driving mechanism is arranged in the middle of the belt conveyor, a turnover mechanism is connected above the belt conveyor through the driving mechanism, and the belt conveyor is formed by combining a rack and a conveying belt. The driving mechanism comprises a motor arranged on one side of the belt conveyor, through the combined design of the driving mechanism and the turnover mechanism, the structure can continuously turn over packaging bags in the conveying process, the continuity and efficiency of turnover operation are greatly improved, the turnover mechanism can achieve 360-degree circular motion, and the turnover mechanism can achieve 360-degree circular motion. The packaging bag turnover device is simple in structure and convenient to maintain, packaging bags can be effectively turned over, all parts on a conveying line can keep efficient operation, simple elements such as the driving rods, the mounting bases and the clamping strips are adopted, complex pneumatic or mechanical structures are reduced, and the whole turnover device is simple in structure and convenient to maintain.

This utility model relates to a scraper unloading device for a centrifuge. The technical solution is as follows: A centrifuge is included, and a fixed block inclined to the left is installed on the top cover of the left side of the feeding cylinder of the centrifuge. A scraper mechanism is rotatably inserted into the middle opening of the fixed block through a built-in bearing. The scraper mechanism includes a rotating tube extending into the inner side of the left side wall of the rotating drum. A scraper is fixedly connected to the left side wall of the rotating tube. Several spray holes are evenly opened from top to bottom on both sides of the connection between the rotating tube and the scraper. A rotating sealing joint is connected to the top end of the rotating tube. The liquid inlet pipe on the left side of the rotating sealing joint is connected to the liquid outlet of a water pump. The lower part of the water pump is mounted on the fixed block through a first U-shaped bracket. The rotating tube is driven by a drive mechanism mounted on the right side of the fixed block. The beneficial effects of this utility model are: reduced scraping blind spots and residue, automatic rinsing, and improved unloading efficiency.