30results about How to "Reduce the difficulty of design and processing" patented technology

The invention provides a digital isothermal nucleic acid detecting device which comprises a micro-fluidic chip, a temperature control system and a pressure driving system. A microfluidic channel for microsphere forming and a reaction section for nucleic acid amplification are formed by the micro-fluidic chip through sequential laminating of a substrate layer, a channel layer arranged on the substrate layer and a cover plate layer arranged on the channel layer. The temperature control system comprises a lower press plate for applying pressure to the substrate from bottom to top and an upper press plate for applying pressure to the cover plate layer from top to bottom, and temperature sensing chips and temperature control heating elements for heating the reaction section are arranged in the upper press plate and the lower press plate. The pressure driving system is connected to the micro-fluidic chip and used for applying pressure to the channel layer in the micro-fluidic chip so that liquid to be detected can flow into the reaction section from the inflow end. According to the scheme, microsphere preparation and nucleic acid amplification and detection are integrated through the digital isothermal nucleic acid detecting device and the detection method, and the advantages of being high in sensitivity and the like are achieved.

The invention discloses a multichannel microdroplet detection chip for nucleic acid detection, which is successively provided with a cover plate layer, a channel layer and a substrate layer from top to bottom, wherein the channel layer is internally provided with a plurality of independent detecting units; each detecting unit comprises a dispersion phase hole, a sample adding hole, a reaction cavity and a reaction cavity hole; the dispersion phase holes and the sample adding holes are respectively converged through a first micro-channel and a second micro-channel, then are communicated to the reaction cavity through a third micro-channel; the other end, opposite to the third micro-channel, in the reaction cavity is communicated with the reaction cavity hole through a forth micro-channel. According to the multichannel microdroplet detection chip, a chip structure of a plurality of parallel detecting units is adopted to improve the reaction flux; a buckle is used for connecting different chips, the different chips can be detected in a combining manner, the flux is flexible and adjustable, and the detection efficiency is improved; the multichannel microdroplet detection chip is simple in structure, the application cost is greatly reduced compared with the present digital PCR instrument, and can be applied to the primary clinical detection.

The invention discloses a one-dimensional non-focused and focused ultrasonic double array scanning imaging device and method. The relative positions of a non-focused ultrasonic transducer linear array and an ultrasonic array are fixed and arranged front to back side by side; laser stimulates to-be-tested tissue to generate a photoacoustic signal, the non-focused ultrasonic transducer linear array collects the photoacoustic signal and ultrasonic imaging is carried out on the ultrasonic array at an interval of a laser pulse; the one-dimensional non-focused ultrasonic transducer linear array is scanned and is equivalent to a two-dimensional photoacoustic detection area array, so that the one-dimensional non-focused ultrasonic transducer linear array has a wider receiving angle than a focused linear array; meanwhile, the design and processing difficulty is greatly reduced in comparison with a two-dimensional surface, and the one-dimensional non-focused ultrasonic transducer linear array has great value in animal and photoacoustic tomographic imaging; the image contrast sources of two modes are different and information is complementary, a photoacoustic image and an ultrasonic image are registered and rebuilt to obtain a double-mode three-dimensional imaging result, and can be applied to small animal imaging or tumor disease examination and post-treatment evaluation of a breast cancer and the like.

A multiple-in-multiple-out pressure exchanger, the pressure exchanger is used for transferring pressure energy from a high-pressure first fluid to a low-pressure second fluid to provide a pressurized second fluid, the pressure exchanger is characterized by comprising: a body , a sleeve disposed within the body and a rotor rotating within the sleeve; the rotor having a plurality of passages extending generally axially through the rotor, the passages having a first opening at one end of the rotor , having a second opening at the other end of the rotor, the openings being spaced apart from each other along the length of the rotor; the sleeve having four or more internally distorted inlet passages and four or more a discharge passage, the sleeve passage is arranged such that when the end opening of the first passage of the rotor is aligned with the inlet passage on one of the sleeves, the other end opening of the passage is also aligned with the discharge passage on the sleeve allow.

The invention discloses a long rubber barrel packer for oil field water exclusion production. The long rubber barrel packer at least comprises a central pipe, wherein the upper end of the central pipe is connected with an upper connector and the lower end of the central pipe is connected with a lower connector; a connecting sleeve, a connector, a spring seat sleeve, a middle rubber barrel assembly and a sliding sleeve sleeves the central pipe in sequence from top to bottom; the upper end of the connecting sleeve is connected with the upper connector and the lower end of the connecting sleeve is connected with the upper end of the connector; the inner circular surface of the lower end of the connector is connected with a piston switch; the outer circular surface of the lower end of the connector is connected with the upper end of the spring seat sleeve; the lower end of the spring seat sleeve is connected with the upper end of the middle rubber barrel assembly; the lower end of the middle rubber barrel assembly is connected with a sliding sleeve; the lower connector is internally provided with a positioning step; the positioning step is fixedly provided with a ball seat through an unpacking shear pin; the packer is combined with an oil field rod type oil pump oil production technology, and seat packing and production can be realized through a one-trip string; meanwhile, unpacking fishing can be carried out by lifting a pipe column and an expansion type packer is applied to the water exclusion production for the first time; the long rubber barrel packer has a longer effective packing surface and the packing success rate is improved.

The invention discloses air vortex tube refrigeration shaft rotation environment test equipment which is simple and convenient to rotate, is not easy to be interfered and can meet different rotation requirements. The test equipment comprises a Z-axis rotating mechanism, an X-axis rotating mechanism, a test box body, a refrigeration mechanism and a control device, wherein the control device controls the Z-axis rotating mechanism, the X-axis rotating mechanism, the test box body and the refrigeration mechanism to operate. According to the invention, the X-axis rotating mechanism is arranged on the Z-axis rotating mechanism to drive the test box body to rotate, so that the requirement of three-axis rotation is met, and the rotation is not interfered; the mechanical structure of the test box body is simplified, so that the obstruction of the mechanical structure of the test box body on the pipeline arrangement is reduced, the operation reliability and the accuracy of each index detection in the test process are improved on the premise of ensuring that the size of the test area of the rotary test box is unchanged, the test technical condition is met, the convenience in maintenance and operation is improved, the applicability is wide, the air vortex tube refrigeration shaft rotation environment test equipment can be independently used as a one-shaft or two-shaft rotary test equipmentsystem, and different test requirements of users are met.

The invention discloses a propellant combustion smoke concentration testing device. The device is mainly composed of a closed combustion chamber, a pressure adjusting module, a test chamber, light sources, light intensity detection sensors, an ignition power source, a high-pressure gas source and a data acquisition and processing module. The pressure adjusting module adjusts the pressure in the closed combustion chamber and controls connection and disconnection of the closed combustion chamber and the test chamber. Symmetrical detection windows are arranged on the test cavity, and the light sources and the light intensity detection sensors are arranged on the two sides of the detection windows of the test cavity respectively; light intensity change when smoke passes through the test cavity is detected. Compared with a traditional smoke concentration testing device, the combustion chamber is separated from the test cavity, so that on the one hand, the structure of the closed combustionchamber is simple, and the difficulty of design and processing of the device is reduced; on the other hand, the requirement on the pressure resistance strength of the test cavity is low by dynamically testing smoke, and meanwhile, the test cavity is easy to clean and maintain. The device can be used for testing the combustion smoke concentration of propellants in a small dosage.

The invention belongs to a petroleum seismic prospecting device, that is, a plunger type controllable seismic-source vibrator. The device comprises a gland bush1, a copper sheathing2, a top-chamber oil duct3, a top oil chamber4, a plunger5, a down oil chamber6, a down-chamber oil duct7, and a rammer8, wherein the rammer8 is fixed by the gland bush1, the rammer8 comprises the top oil chamber4 and the down oil chamber6 covered by the copper sheathing2, the top-chamber oil duct3 communicates with the top oil chamber4, the down oil chamber6 communicates with down-chamber oil duct7, and the plunger5 is arranged in the dead hole of rammer8. The oil duct capacity of the vibrator is reduced for improving vibratility of vibrator and the stress force of gland bush does not increase when the output force of vibrator is increased for reducing processing difficulty and improving manufacturability.

A dual-piston vibrator vibrator related to petroleum seismic exploration equipment, comprising a gland 1, a wear-resistant sleeve 2, a piston 3, an upper oil chamber 4, an upper oil passage 5, a lower oil passage 6, a hammer body 8, a lower Oil chamber 7, oil drain port 9, piston 3 is installed in the upper and lower blind holes of hammer body 8 respectively, upper oil passage 5 and lower oil passage 6 are opened on hammer body 8, upper oil chamber 4 is connected with oil The channel 5 is connected, the lower oil chamber 7 is connected with the lower oil channel 6, and the hammer body 8 is fixed by the gland 1, which can effectively improve the pressure on the piston gland, reduce the difficulty of design, improve the processability, and reduce the volume of the working oil channel , so as to achieve a dual-piston vibrator vibrator that improves the vibration performance of the vibrator.

The invention discloses an adjustable tension and compression rigidity simulator and a mechanical drive link; the adjustable tension and compression rigidity simulator comprises the following elements: two elastic plates; a connecting assembly enabling the two elastic plates to be parallelly arranged and fixedly connected; lug assemblies used for being respectively arranged between the two elastic plates. The connecting assembly is connected in the mechanical drive link and used for transmitting the force in the mechanical drive link to the two elastic plates; the two elastic plates receive the force, so a connecting portion between the elastic plates and the connecting assembly and connecting portions between the elastic plates and the two lug assemblies elastically deform; elastic deformation amount of the elastic plates receiving the force can be changed through adjusting the positions of the two lug assemblies arranged on the two elastic plates. By employing the structure, other parts in the mechanical drive link can be designed in rigidity so as to reduce design and processing difficulty of other parts in the mechanical drive link, and design is simple.

The invention provides an image identification and pre-warning device for a power transmission line. The device comprises a left box assembly, a right box assembly and a screw transmission hinge mechanism. The left box assembly and the right box assembly are arranged oppositely to form a screw transmission hinge mechanism mounting cavity. The screw transmission hinge mechanism is arranged at the inner side of the screw transmission hinge mechanism mounting cavity. One side end of the screw transmission hinge mechanism is connected with the left box assembly, and the other side end is connected with the right box assembly. The screw transmission hinge mechanism drives the left box assembly and the right box assembly to open or close to form a box. According to the device, a mounting tool body matches the screw transmission hinge mechanism; when the left box assembly and the right box assembly are opened and closed, the action is concise and the mounting is convenient; and when the device is mounted, a worker does not need to directly contact the power transmission line, namely an operator does not need to climb up the power transmission line for working, and the mounting is more convenient and safer.

The invention discloses a glue dipping head for conductive glue coating. The glue dipping head comprises a connecting shaft, a rotating body, a glue dipping head base, glue dipping salient points and glue dipping shrinkage salient points, wherein the rotating body is fixedly arranged on the connecting shaft; the glue dipping head base is arranged at the bottom of the connecting shaft; the glue dipping salient points and the glue dipping shrinkage salient points are arranged on the glue dipping head base in matrix arrangement; and the glue dipping shrinkage salient points are positioned on the outermost side of the glue dipping head base. The glue dipping head has the advantages that the space layout of the glue dipping salient points is optimized, and the size and structure of the glue dipping salient points of a bonding pad of a chip are optimally designed, so that the ideal condition that effective overflow of the conductive glue on non-bonding pad parts of the chip and proper overflow of the conductive glue on the bonding pad parts of the chip is achieved; and according to the glue dipping head, the production efficiency and the quality of the conductive glue coating are improved, the viscosity change of the conductive glue and the height of the conductive glue in a glue dipping disc are less affected, and the glue dipping head is beneficial to large-scale production.

The invention belongs to the field of flutter model design and particularly relates to a buckle type model skin. The buckle type model skin comprises a model skeleton (1) and a variable skin (3). Themodel skeleton (1) is provided with buckle grooves (2). The inner walls of the buckle grooves (2) are provided with notches. The edge of the variable skin (3) is provided with buckles (4). The cross section of each buckle (4) is in a U shape. The buckles (4) are clamped to the corresponding buckle grooves (2) through elastic restoring force of the buckles (4) when mounted into the buckle grooves (2). The notches on the inner walls of the buckle grooves (2) can prevent the buckles (4) from coming out. The buckle type model skin provided by the invention has the advantages of being high in aerodynamic shape simulation precision, small in design and processing difficulty, short in cycle, convenient to disassemble and assemble, capable of realizing local or integral variable stiffness design and the like.

The invention provides a dual-beam large-spot collimated irradiation implementation method used in a special environment. A collimating mirror and a rotating platform are arranged in the special environment, and the collimating mirror is loaded on the rotating platform; and two laser beams are coupled to the surface of the collimating mirror in different positions and different directions through a telescope-type collimation system secondary mirror or a plurality of planar reflecting mirrors and the telescope-type collimation system secondary mirror, emitted out in a collimated manner as large-size spots through the collimating mirror and sequentially irradiated on a fixed target. The special environment is a closed space different from the atmospheric environment, such as a sealed tank body, an airtight space, a vacuum tight space and the like. The two laser beams penetrate different sealed optical windows of the special environment, and then are coupled to the surface of the collimating mirror. The method provided by the invention is simple, feasible, convenient and fast, the manufacturing cost is low and the technical effect is good.