76results about How to "Obvious and Understandable Features" patented technology

The invention provides a peristaltic pump which comprises a rack, a rocker assembly, a pressing block, a pump pipe fixing assembly, a driving motor and a roller assembly, the driving motor is installed in the rack, an output shaft of the driving motor is sleeved with the roller assembly, a pump pipe is placed on the roller assembly, and the rocker assembly is connected with the roller assembly. The roller assembly is used for pushing the pump pipe to creep for liquid supply under the driving of the driving motor, the pump pipe fixing assembly is fixedly connected to the rack and used for fixing the two ends of the pump pipe, the rocker assembly is rotationally arranged on the rack, the pressing block is arranged on the rocker assembly, and the pump pipe fixing assembly is used for fixing the two ends of the pump pipe. And the rocker assembly can drive the pressing block to be close to the rolling wheel assembly so as to be matched with the rolling wheel assembly to press the pump pipe on the rolling wheel assembly. The two ends of the pump pipe are fixed through the pump pipe fixing assembly, it is guaranteed that the pump pipe is not prone to moving and falling off, and the pressing block is tightly attached to the pump pipe to prevent liquid in the pump pipe from flowing back.

The invention provides a composite material winding regenerative cooling thrust chamber and a machining process, and relates to the field of liquid rocket engines. The composite material winding regeneration cooling thrust chamber comprises a thrust chamber body and a composite material layer. A cooling groove is formed in the outer side wall of the thrust chamber body; the composite material layer is arranged on the thrust chamber body in a sleeving mode, the composite material layer wraps the cooling groove to form a cooling channel, and the composite material layer is formed by winding composite fibers on the thrust chamber body. The outer side wall of the thrust chamber body provided with the cooling groove is equivalent to an inner shell of a sandwich structure, and the composite material layer arranged on the thrust chamber body in a sleeving mode is equivalent to an outer shell of the sandwich structure. Due to the fact that the composite material layer is formed by winding the composite fibers on the thrust chamber body, a brazing process is not adopted in the machining process, the wall thickness of the thrust chamber body and the height of the cooling channel are not limited by brazing technical conditions, the wall thickness of the thrust chamber body can be smaller, the height of the cooling channel can be lower, and therefore the cooling effect of the cooling channel is improved.

The invention provides a waterproof internal and external corner prefabrication construction method, and belongs to the field of building construction. The waterproof internal and external corner prefabrication construction method comprises the following steps of obtaining a construction drawing of a construction site; according to the size, recorded in the construction drawing, of the construction site, calculating the size and the number of the internal corner prefabricated blocks, the vertical face external corner prefabricated blocks and the top external corner prefabricated blocks; manufacturing internal corner prefabricated blocks, vertical face external corner prefabricated blocks and top external corner prefabricated blocks; constructing a foundation, and building a brick blank film; plastering the surface of the brick wall to form a plaster layer; and pouring a cushion layer. The facade internal corner precast block, the bottom internal corner precast block, the brick wall, the facade external corner precast block and the top external corner precast block are built on the foundation, and the brick blank film is formed on the foundation, so that waterproof hollowing at internal and external corner parts of the foundation is avoided, the waterproof quality of the foundation is improved, the construction difficulty of the internal and external corners is greatly reduced, and the construction efficiency is improved.

The invention provides a rotary cut guide wire and a calcification lesion tearing device. The rotary cut guide wire comprises a guide wire body, a plurality of cutting pieces and at least one attaching piece, wherein the cutting pieces and the attaching piece are arranged on the guide wire body. The multiple cutting pieces are arranged in the circumferential direction of the guide wire body, one side of each cutting piece is rotationally connected with the guide wire body, the other side of each cutting piece is provided with a cutting edge, and the cutting edges are away from the guide wire body when the cutting pieces rotate relative to the guide wire body. The attaching piece enables multiple cutting pieces to be gathered on the surface of the guide wire body, the cutting pieces are not prone to scratching blood vessels when entering the blood vessels along with the guide wire body, and safety is high. A medical worker conveys the cutting pieces to the calcification lesion position through the guide wire body, then the guide wire body is further rotated, the side, connected to the guide wire body, of the cutting pieces is driven to rotate, and the cutting edges of the cutting pieces are blocked by the calcification lesion and do not rotate along with the guide wire body. The cutting pieces overcome the acting force of the attaching piece and rotates relative to the guide wire body, the cutting pieces are gradually unfolded from the folded state, and the cutting edges are gradually away from the guide wire body and cut into the calcification lesion.

The invention provides a preparation method of a Micro-LED display module, the display module and a display device, and belongs to the field of LED display. The preparation method of the Micro-LED display module comprises the following steps: obtaining or preparing a Micro-LED array; designing a micro-lens array structure diagram according to the Micro-LED array, and preparing a micro-lens array model according to the micro-lens array structure diagram; obtaining the thickness and the light transmittance of the micro-lens structure, selecting a light-transmitting material, and preparing the micro-lens structure through the micro-lens array model; and the micro lens structure is bonded with the Micro-LED array, so that the Micro-LED display module can be formed. According to the Micro-LED module, the light emitting angles of the LED pixel units are shrunk through the micro lenses, the light emitting collimation is improved, the light crosstalk effect of light emitting of the adjacent LED pixel units is effectively avoided, the light emitting loss of the LED pixel units is reduced, and therefore the light emitting brightness of the Micro-LED module is improved.

The invention provides a split type floating fan base and a floating fan. The split type floating fan base comprises a first buoy, a plurality of second buoys, a connecting rod, a plurality of suspension cables and a balance weight part. The volume of the first buoy is greater than that of the second buoy; the first buoy is provided with a connecting assembly used for being connected with a draught fan. The second buoys are connected with the first buoy through connecting rods; the plurality of second buoys are distributed at equal intervals and are rotationally and symmetrically distributed, and the first buoy is located at the central position of the plurality of second buoys; and each second buoy is connected with the counter weight through a suspension cable. According to the split type floating fan base, on the basis of the configuration of the large first buoy and the multiple small second buoys and the structure that the bottoms of the multiple second buoys are connected with the balance weight pieces, the effect that the waterline area is small but large restoring torque can be provided is achieved, the whole split type floating fan base has excellent stability, small enough pitching and rolling freedom degree dynamic response can be kept, and arrangement of the floating fan is facilitated.

The invention provides a storage sowing method and a sowing system, and belongs to the field of logistics. The warehousing and sowing method comprises the following steps: feeding goods to be sown to a goods storage rack of a sorting machine; the sorting machine moves to the seeding wall according to the planned path; the to-be-sown material bearing bodies on the sowing wall are taken out and placed on a cargo carrying table of the sorting machine through a cargo taking and placing mechanism on the sorting machine; sowing the goods in the goods storage rack into the material bearing body; the sown material bearing body is transferred to a sowing wall through the goods taking and placing mechanism, and racking is completed. By sharing the seeding wall and the storage area, the utilization rate of space is improved, the number of the storage grids of the seeding wall can be increased according to actual conditions, so that super-large-scale immediate seeding and immediate storage are realized, each cargo is seeded into the corresponding material bearing body through the sorting machine, and the seeding efficiency and the seeding accuracy of the cargo are improved.

The improved centerless indentation cutting device comprises a mounting frame, a cutting mechanism and an indentation mechanism, and the indentation mechanism comprises a plurality of rolling wheels and indentation wheels; the two indentation wheels are annularly arranged at intervals, and the rolling wheels can abut against the inner rings of the indentation wheels. The cutting mechanism comprises a cutting movable seat and a cutting saw wheel mounted on the cutting movable seat; the cutting saw wheel is located between the interval grooves of the two indentation wheels. And the cutting movable seat can move relative to the indentation wheel, so that the cutting saw wheel extends out of the outer ring of the indentation wheel. A large-size centerless annular excircle structure is replaced by the indentation wheel, and the indentation wheel is in rolling contact with a carton, so that the indentation wheel is not easy to wear; the cutting saw wheel is replaced by a small saw blade structure, cutting can be carried out by extending the movably mounted cutting movable seat out of the outer ring of the indentation wheel, the manufacturing cost of a single part of the small saw blade is low, and the production and maintenance cost is effectively reduced.

The invention provides a welding seam automatic identification anti-bending device. The welding seam automatic identification anti-bending device comprises: at least one bending machine; a visual identification system; a conveying system; a grabbing robot; and a control system. After a steel plate sample is conveyed to a recognition area of the visual recognition system through the conveying system, the visual recognition system can recognize welding seams on the steel plate sample, and then the grabbing robot transfers the steel plate sample to the bending machine from the conveying system according to the recognition result of the visual recognition system; and finally, the steel plate sample is bent for multiple times by a bending machine, and it is judged whether the weld strength meets requirements according to whether the steel plate sample is broken. In the process, the recognition of the visual recognition system on the welding seam is not influenced by the shape of the steel plate sample, the position of the welding seam on the steel plate sample and other factors, so that the bending machine can bend by taking the welding seam as a reference, and the accuracy of a detection result is ensured.

The invention provides a photography light supplement lamp and a light supplement control method. The photography light supplement lamp comprises a lamp shell, a camera support, a lens and a plurality of light plates. Wherein the centers of the lamp shell, the lens and the lamplight plates are the same; a lens through hole is formed in the center of the lamp shell; the camera support is arranged on the back face of the lamp shell and used for being connected with external shooting equipment and enabling a lens light path of the external shooting equipment to penetrate through the lens via hole. The light plates are arranged on the front surface of the lamp shell; the lens is detachably connected with the edge of the lamp shell, the focal length can be adjusted according to the shooting distance to change the size of light spots, and a plurality of lamplight plates are covered. According to the scheme, the light-emitting areas are multiple in shape, the situations that in the prior art, the center area is overexposed and the edge area is too dark can be avoided by controlling the lamplight plates, shooting equipment conducts shooting through the lens via hole through the lens via hole, light rays are more uniform, and clearer images can be generated easily.