104results about How to "Good streamline" patented technology

Described herein are devices and methods which incorporate a surface mounted “base structure” for use with one or more components allowing various resistance-based exercises to be performed, for example, exercises incorporating bars, benches, handles and resistance bands. The device can be made modular such that an intermediate structure can interchangeably cooperate with various components allowing a myriad of different exercises to be performed, utilizing the same single intermediate structure. The device can comprise additional designs and features to enhance the safety and stability of the device and the connections of the various components to the device.

The invention discloses a multistage electric pump for improving coarse-particle solid-liquid two-phase slurry. The multistage electric pump comprises an electric pump outer shell, a dual-output-shaft submersible motor with a thrust bearing, an upper pump and a lower pump, wherein the dual-output-shaft submersible motor, the upper pump and the lower pump are arranged inside the electric pump outer shell, the upper pump and the lower pump are respectively arranged on an upper-end output shaft and a lower-end output shaft of the submersible motor, a two-channel annular runner is arranged between the electric pump outer shell and an outer shell of the submersible motor, two ends of the two-channel annular runner are in seamless connection with a runner of the upper pump and a runner of the lower pump through an upper suction shell and a lower suction shell so as to form an integral runner of the electric pump, and the coarse-particle slurry can smoothly flow through the runner or flow back. According to the invention, the problem of runner blockage of coarse particles caused by detainment or backflow in the runner is solved, and the multistage electric pump has the characteristics of reasonable structure, simplicity for operation, capability of allowing the large coarse particles to flow through and flow back, high lift and the like.

The invention aims at a multipath power distribution branch circuit with an intelligent breaker and provides a ship power distribution monitoring information acquisition system which is characterized by comprising a main control box and N subcontrol boxes, wherein each subcontrol box is independently connected with the main control box; the main control box comprises a field acquisition and communication module, a data processing module and a network communication module, wherein the field acquisition and communication module in the main control box is directly connected with the intelligent breaker arranged on the required monitored power distribution branch circuit in parallel and is used for collecting data, the input end of the data processing module is connected with the field acquisition and communication module in the main control box and the subcontrol boxes, the data processing module is used for processing all data collected by the main control box and the subcontrol boxes and reporting a result to the network communication module, and the result is transmitted to an upper-layer monitoring network by a two-way CAN bus; and each subcontrol box comprises a field acquisition and communication module and a retransmission unit, wherein the field acquisition and communication module is connected with the intelligent breaker arranged on the required monitored power distribution branch circuit and is used for transmitting the collected data to the main control box from the retransmission unit.

The invention relates to the detection of infectious diseases. A system for automatic detection of infectious diseases is disclosed. The system comprises an input unit for receiving a blood sample, a lysis unit, a PCR unit, a sample unit and a detection unit. The systemmay based on an inputted blood sample generate an output signal that isindicative of the presence of pathogen DNA in the blood sample.

The invention provides a method for detecting a bin level in an image processing mode based on a digital camera and auxiliary lighting equipment. The method provided by the invention comprises the following steps of: grading the range of a bin by summarizing the characteristics of an image environment of the bin and analyzing the distribution law of the image entropy of defocused images within the full range of the bin in the environment of the bin; controlling the lens focus of the digital camera by a program so that the camera captures images based on grades; preprocessing the images firstly, and extracting feature textures of materials; and calculating the image entropy of the processed images, and finally obtaining a bin level value through analysis and calculation.

Disclosed herein are methods for mutagenizing a mammalian gene, the methods involving introducing into a mammalian cell a retroviral vector which includes a splice acceptor sequence, a transcription termination sequence, and retroviral packaging and integration sequences, the introducing step being carried out under conditions which allow the vector to integrate into the genome of the cell. Also disclosed are retroviral vectors for use in these methods as well as methods for the use of mutagenized cells.

The present invention relates to a device for measuring flow rate of fluid, in particular, it is an even-speed flow rate measuring device with the function of raising speed. Said device includes measuring rod and connection joint, and said measuring rod consists of total pressure tube and static pressure tube, the widths of the total pressure tube and satic pressure tube in the shared diaphragm position are widest, and the width of said total pressure tube is greater than that of static pressure tube; on the measuring rod several groups of total pressure and static pressure pressure-extracting points are set, and the total prssure pressure-extracting hole is set in the connected position of symmetrical arc lines of tube wall of total pressure tube, and the static pressure pressure-extracting hole is set on the tube wall of static pressure tube closed to diaphragm, and on the outside of the above-mentioned measuring rod two parallel speed-raising plates are symmetrically placed along the axial direction of measuring rod.

The present invention relates to a breach cut-off device. One or a plurality of water-absorption leakage-blocking bags which are connected in parallel with a rope are filled with high-water-absorption resin. The two ends of the leakage-blocking bag connection rope are connected with a hollow steel pile fixed on the dam. The cut-off method comprises the following steps: A. respectively fixing four hollow steel piles on two ends of the breach, and fixing two hollow steel piles on each end; B. mounting the breach leakage-blocking bags which are connected in parallel above the water surface of the breach, and suspending on the links of four hollow steel piles at both ends, straining and hitting the breach leakage-blocking bags into the water with the steel bars; and C. placing the next group of breach leakage-blocking bags into the water with a same method until the last group of breach leakage-blocking bags exceeds the water surface for blocking the breach through the water-absorption expansion of the breach cut-off device. The leakage-blocking bag designed by the invention has better streamline property, bears less impact force of the breach current in entering the water, has more regular shape after water-absorption expansion and facilitates the compact arrangement between the bags. The transportation and field installation is convenient and quick. The breach cut-off device and the cut-off method according to the invention have more practical value in flood emergency fighting.

The invention discloses a drug-mixing connector, in particular relates to a drug-mixing connector for a plastic infusion soft bag, belonging to the technical field of medical device manufacturing. The drug-mixing connector is characterized in that, during the drug mixing process, when an easy-to-break handle is broken, the infusion soft bag is not damaged, and the broken handle segment of the easy-to-break handle does not drop into a plastic infusion soft bag. The drug-mixing connector comprises the easy-to-break handle, the infusion soft bag and a hard dual connector which is connected with the infusion soft bag and comprises a drug-mixing channel and an infusion channel; the drug-mixing channel is connected with a drug-mixing mouth which comprises a drug-mixing clamping body and a needle cylinder body; the drug-mixing connector further comprises a sealed rubber hose, and the drug-mixing mouth is connected with the drug-mixing channel through the needle cylinder body and the sealed rubber hose; and the easy-to-break handle is sheathed at the tail end of the needle cylinder body in the sealed rubber hose.

Apparatus and method are provided for teaching and/or improving upon the mechanics of the whip kick that may be used while performing the breaststroke and training the competitive breaststroker. The tool includes a fin that is configured to receive a swimmer's foot and a propulsive blade that engages the water at the beginning of the propulsive phase of the kick, such as when the swimmer's legs have reached maximum flexion at the knees, with feet positioned slightly wider than the knees, heels turned in while the toes are turned out and ankles flexed. As the swimmer initiates the power phase of the kick, the propulsive blade achieves maximum purchase of the water. As execution of the power phase continues, the propulsive blade channels the captured water backward and away from the swimmer, remaining stiff enough to hold onto the water while force is applied, yet sufficiently flexible enough to recover or flip downward as the swimmer extends the ankles and rolls the outer edges of his/her feet over and inward, snapping the soles together.

The invention discloses a combined type circular pipe pipe-fin heat exchanger, relating to the technical field of heat exchangers. The combined type circular pipe pipe-fin heat exchanger comprises circular pipes arranged along a flow direction of gas and fins sleeved on the circular pipes, wherein the fins are provided with holes used for being sleeved with the circular pipes, a flanging boss is arranged on the edge of each hole, a pair of rectangular small wing plane vortex generators is punched at the rear part of each hole, and an oval convex hull is punched at the front part of the hole. The oval convex hulls have better streamline, and when flowing through the oval convex hulls, a fluid changes a flow direction and flows along the convex hulls, thereby the loss of flow resistance caused by directly and vertically washing the circular pipes with the fluid is reduced. Meanwhile, after the fluid flows through the rectangular vortex generators, secondary flow following a mainstream is generated in the fluid. When a part of the fluid flows through the vortex generators, a fluid channel is formed between each circular pipe and each vortex generator and is led to a recirculation region of the circular pipes, thereby the size of the recirculation region at the downstream of the circular pipes is reduced, the heat exchanging performance between the pipe wall at the downstream of the circular pipes as well as the surface of adjacent fins and the fluid is improved, and the consumption of the mechanical energy in the recirculation region is reduced.

A two-side visual detection robot and a detection method thereof are disclosed. The robot at least includes turnover devices accommodating and fixing LED backlight sheets, driving the LED backlight sheets to turn over, and allowing a zone to be detected of at least one surface of the LED backlight sheets on the turnover devices to be exposed; image collection devices movably arranged on the turnover devices to collect images of the exposed zones to be detected of the LED backlight sheets on the turnover devices; and a control device connected to the turnover devices and the image collection devices. The robot is exquisite in design and simple in structure, and two surfaces to be detected of each LED backlight sheet can be pointed at a camera lens respectively through turnover to achieve image collection, and therefore, automatic two-side defect detection of LED backlight sheets can be performed by utilizing a visual recognition technique, manual intervention on a detection process is low, problems of detection leakage and a low detection precision are solved, the speed and accuracy of detection with machine vision are far higher than those of detection with human eyes, and good detection precision and a high efficiency are effectively achieved.

The invention relates to a lighting device (100), comprising a first light-emitting component (1), a second light-emitting component (1`) and a heat radiating device (2), wherein the heat radiating device (2) is provided with a first heat radiating body (21) and a second heat radiating body (22) arranged around the first heat radiating body (21), the first light-emitting component (1) and the second light-emitting component (1`) are respectively arranged on the top surface (23) and the bottom surface (24) of the second heat radiating body (22), and reflectors used for the first light-emitting component (1) and the second light-emitting component (1`) are arranged on the first heat radiating body (21). According to the lighting device disclosed by the invention, the lighting effect is good, and the omni-directional lighting is specifically realized; and the lighting device and the lamp provided with the lighting device have the advantages that the manufacturing technique is simple, the cost is low, and the heat radiating capability is remarkably improved.

The invention discloses a sterilizing mechanism and a humidifier thereof. The sterilizing mechanism comprises a wet curtain and an ultraviolet radiator, the wet curtain is in the shape of a verticallyarranged barrel, and a cavity is defined in the middle of the wet curtain. The rod-shaped ultraviolet radiator is located in the cavity, and the axis of the ultraviolet radiator coincides with the axis of the barrel-shaped wet curtain. The ultraviolet radiator emits ultraviolet rays to sterilize water on the wet curtain and air in the cavity. The top of the wet curtain is connected with a water trough, and the bottom of the water trough communicates with the wet curtain through a water seepage opening. The bottom of the wet curtain is connected with a water tank, the water tank is connected with a water pump, and the water pump and the water trough are connected through a vertical guide pipe. The water trough and the water tank are made from a transparent material, or the faces, towards the cavity, of the water trough and the water tank are mirror surfaces. The ultraviolet rays are adopted for sterilizing the water on the wet curtain, the air in the cavity and even water in the watertrough and the water tank, and are high in utilization rate and good in sterilizing effect.

The invention provides a marine vehicle like flying fish and mainly applies to the field of ships. The marine vehicle like flying fish comprises a propeller providing the power effect, a guide tube, a ship hull like the flying fish, a rotary support pillar and tail vanes. The whole device is pushed to move with the propeller as power, the ship hull like the flying fish floats on the water surface during low-speed movement, and the movement state of the whole device is adjusted by the aid of the rotary support pillar; the ship hull like the flying fish leaves the water surface during high-speed movement, and the movement state of the whole device is adjusted by the aid of the tail vanes mounted at the rear of the ship hull like the flying fish and having a function of an air rudder and in combination with the rotary support pillar.

The invention discloses a plate twisting formation device and method. The formation device comprises a hydraulic base station, a gantry type press machine connected with the hydraulic base station, a twisting device arranged on the gantry type press machine and a fastening device for fixing plates, wherein the gantry type press machine comprises a platform, a U-shaped gantry arranged on the platform and a hydraulic cylinder arranged on the U-shaped gantry and connected with the hydraulic base station through a hydraulic pipe, and a clamp clamped with the twisting device is arranged at one end of the hydraulic cylinder. The twisting device comprises two twisting plates, wherein each twisting plate comprises small oval connecting ends and large oval twisting ends, a vertical tube is arranged between the small oval connecting ends, the small oval connecting ends are connected through a connecting shaft, and a concave plate is arranged on the vertical tube and is rightly clamped with the clamp. The large oval twisting ends are fixed through a connecting plate. A rectangular feeding port is further formed in each large oval twisting end and is used for placing the plates. The formation device is simple in structure and convenient to use.

The invention relates to a low-wind-resistance anemometer. The low-wind-resistance anemometer comprises a flow guide assembly, a wind pressure detection assembly and a pressure stabilizing assembly. The flow guide assembly comprises an air channel cavity composed of an upper flow guide surface and a lower flow guide surface which are parallel to each other. The wind pressure detection assembly comprises a closed cavity. The closed cavity is located at the center of the lower flow guide surface. The upper portion of the closed cavity is spherical. The spherical surface of the closed cavity is made of a soft thin film. The round bottom of the closed cavity is provided with a pressure sensor. A plurality of wind deflectors are arranged between the upper flow guide surface and the lower flow guide surface in an annular array mode. The axes of the wind deflectors are located in the diameter direction of the closed cavity. The planes where the wind deflectors are located are perpendicular to a pressure borne surface. A plurality of stand columns are arranged between the upper flow guide surface and the lower flow guide surface. The stand columns are arranged around the closed cavity. An annular trapezoidal filter screen is arranged between the edge of the upper flow guide surface and the edge of the lower flow guide surface.

The invention relates to a preparation method of paraffin particles based on CO2/N2 switch emulsion and an application of the paraffin particles, which relate to the technical field of paraffin particles. The preparation method specifically comprises the following steps: S1) preparing an oil phase; S2) preparing a water phase; S3) preparing an O/W emulsion: mixing the oil phase and the water phase, stirring and emulsifying to obtain the O/W emulsion; S4) preparing paraffin particles: introducing carbon dioxide into the O/W emulsion, separating out the paraffin particles, and centrifuging to obtain the paraffin particles and a protonated solvent; S5) performing cyclic utilization: introducing nitrogen into the protonated solvent to obtain N, N-dimethylcyclohexylamine and an emulsifier aqueous solution, and respectively recycling. The invention also discloses the application of the paraffin particles. The invention discloses the preparation method of paraffin particles with recyclable solvent and emulsifier aqueous solution, which saves raw materials, lowers the cost and reduces the environmental pollution. Meanwhile, the invention further discloses the application of the product indrilling fluid.

The invention discloses an integral propeller hub body of a marine propeller. The integral propeller hub body comprise an oil cylinder body, a spherical part and a cylindrical part which are integrally arranged in sequence, wherein inner cavities are respectively opened on the oil cylinder body, the spherical part and the cylindrical part along the axial lines; at the same time, the inner cavity opened on the spherical part is arranged in a regular prism manner; a wear-resistant ring groove and a Glyd ring groove are respectively opened at the junctions of the inner cavities of the oil cylinder body and the spherical part; a round window is opened on each side surface of the regular prism, oil grooves are opened on the internal and external end surfaces and an inner hole of each round window, and an O-shaped ring groove is opened on the external end surface of each round window; the end surface of the cylindrical part is provided with a pin hole and a thread hole; oil pressure detection ports are respectively opened on the end surface of the oil cylinder body and the outer circle of the spherical part; and three installation holes are uniformly distributed on at least circumferential direction of the outer circle of the spherical part. Therefore, by adopting the integral propeller hub body disclosed by the invention, the processing requirement is reduced, the connecting bolt is not used, the installation is convenient, and the leakage probability of hydraulic oil in the propeller hub body is reduced.

The invention discloses a projecting device for a recovery stage of an unmanned vessel, which is mounted on the unmanned boat through a support seat. The projecting device comprises a launching tube and a projectile; The projectile is shaped like a missile; Projectiles are placed in the launch tube prior to the unmanned vessel recovery phase; The projectile comprises a bullet, a high-pressure gascylinder, an elastic spiral tail mounted on the outer surface of the high-pressure gas cylinder, a counter-rotating mechanism and a traction rope fixed on the counter-rotating mechanism.- One end of the high-pressure gas cylinder is provided with a bullet head, and the other end of the high-pressure gas cylinder is provided with a reverse rotation mechanism; The rotational direction of the counter-rotating structure is opposite to that of the elastic helical tail in the process of projectile launching. The invention improves the overall streamlinearity of the projectile to adapt to better aerodynamic characteristics, further improves the projectile precision of the projectile device, and increases the safety reliability of the unmanned boat recovery stage and the success rate of the unmanned boat recovery.