174results about How to "Easy to observe directly" patented technology

The invention discloses a sunk duct piece test platform which comprises a soil pit, a duct piece, a loading system and a control system, wherein the soil pit is an open-ended cylindrical concave pit dug and constructed underground; the duct piece is placed in the middle of the soil pit in a manner that the axis of the duct piece is vertical; the loading system comprises a string ring structure, a hydraulic cylinder group and two tensile hydraulic cylinders; the string ring structure is embedded into the internal wall of the soil pit; the hydraulic cylinder group comprises three rows of loading cylinders; each row of loading cylinders is provided with 16 hydraulic cylinders; one end of each hydraulic cylinder is connected with the external wall of the duct piece; the other end of each hydraulic cylinder is fixedly connected with the internal wall of the string ring structure; the hydraulic cylinder group loads the duct piece; one end of each tensile hydraulic cylinder is fixedly connected with the internal wall of the string ring structure; the other end of each tensile hydraulic cylinder is connected with the internal wall of the duct piece by an anchor rod and loaded on an anti-floating point of the duct piece; and the control system comprises a pump station, an upper and lower half-ring control component, a middle whole ring control component and an anti-floating point control component, is connected with the loading system and controls the loading system to load the duct piece. The platform saves the space, is easy and simple to operate, and can simulate an anti-floating condition of the duct piece, and a test result accords with the engineering practice.

A dual container-type balanced lavage apparatus of a thrombus remover. The apparatus comprises a liquid inlet pipe (1), a liquid outlet pipe (2), pump number one (3), pump number two (4), container number one (5), and container number two (6). Container number one (5) is connected to a high-pressure cavity (7) of a debris aspiration apparatus in the thrombus remover via the liquid inlet pipe (1) and pump number one (3), while a low-pressure cavity (8) of the debris aspiration apparatus is connected to container number two (6) via the liquid outlet pipe (2) and pump number two (4). Arranged on the liquid inlet pipe (1) between pump number one (3) and the high-pressure cavity (7) of the debris aspiration apparatus is flexible pipe section number one (101) for use in cushioning pressure waves generated by pump number one (3). Arranged on the liquid outlet pipe (2) between the low-pressure cavity (8) of the debris aspiration apparatus and pump number two (4) is flexible pipe section number two (201) for use in cushioning pressure waves generated by pump number two (4). The arrangement of flexible pipe sections number one and two (101 and 201) respectively on the liquid inlet pipe (1) and on the liquid outlet pipe (2) allows for use of the flexible pipe walls of each to cushion the pressure waves generated by pumps number one and two (3 and 4), thus facilitating increased operation stability of the entire apparatus.

The invention discloses a method for testing CVT (continuously variable transmission) slope-starting performance, comprising: step (a) tests on slope-starting capability respectively comprise: firstly testing starting performance respectively at D gear and R gear on flat road; then testing starting at slope with various gradients; testing forward starting performance and backward starting performance after halting the vehicle; test on slope practicality comprises: test for maximal halting gradient, idle vibration test for slope halting at D gear, test for impact and collision noise occurring during forward starting and backward starting at slope with various gradients; test on outdoor running; test to judge whether the speed ratio transformation works smoothly, whether the gear shifting position malfunction or disengagement occurs, whether the oil leakage occurs on air plug and whether the oil pump pressure reduces when normally running on outdoor long range slope; step (b) comparing recorded data with designed theoretical value of CVT in order to judge whether it meets the requirement. The invention has advantages of simple, rapid, compact, reasonable and convenient.

The invention relates to the field of animal medical experiment instruments, in particular to an adjustable fixator for mouse tail-vein injection, comprising a base, a tail-holding slider, a cold light, a fixing barrel, an adjusting cover, a connection device and a retainer; the base is provided with a rectangular groove; the tail-holding slider is arranged in the rectangular groove; the cold light is mounted on the tail-holding slider; the fixing barrel is mounted on the upper surface of the base; the adjusting cover is mounted in the front of the fixing barrel through the connection device;the retainer is mounted at the rear end of the fixing barrel. The adjustable fixator for mouse tail-vein injection allows a mouse to be precisely fixed, allows its size to be adjusted according to thebody size of the mouse, and allows the mouse state to be observed to ensure injection precision.

A synthetic aperture laser imaging radar optical processor based on band-pass filter conducts imaging process on target echoed data of a synthetic aperture laser imaging radar through an optical imaging processing method. The synthetic aperture laser imaging radar optical processor based on the band-pass filter comprises an optical master, a collimation beam expanding unit, a synthetic aperture laser imaging radar echoed data storage unit, a transmission-type and intensity-type liquid crystal spatial light modulator, a first spherical lens, a slit, a second spherical lens, a cylindrical lens, a third spherical lens and an optical screen. According to the rationale, the target echoed data received by the synthetic aperture laser imaging radar echoed data storage unit is loaded onto the intensity-type liquid crystal spatial light modulator and conducts modulation on incident planar optical waves; after emergent optical waves pass through the band-pass filter, the focusing of the range direction and the azimuth direction can be achieved simultaneously, and an imaging result is amplified and displayed on the optical screen. By means of the synthetic aperture laser imaging radar optical processor based on the band-pass filter, the band-pass filter of a synthetic aperture imaging laser radar intensity-type echoed signal is achieved, the imaging result is easy to observe, and the synthetic aperture laser imaging radar optical processor based on the band-pass filter has an extensive application prospect in the future airborne and satellite borne synthetic aperture laser imaging radar systems.

The invention discloses fusion protein for screening and evaluating an anti-enterovirus 71 (EV 71) medicine and application of the fusion protein. According to the fusion protein, firefly luciferase (Fluc) is used as a reporter gene, two micromolecule polypeptides which can be bonded tightly pepA and pepB are bonded with the N end and the C end of the firefly luciferase respectively, the middles of the firefly luciferase are connected by an EV713C protease effect substrate, and a fusion gene is inserted into an eukaryotic expression vector and is expressed to generate the fusion protein. Simultaneously, enhanced green fluorescent protein (EGFP) which is inserted reversely can indicate the transfection efficiency of the EGFP in cells which are transfected in vitro by observing the condition of green fluorescence. By utilizing an indication vector provided by the fusion protein, the reproduction condition of EV 71 can be indicated simply, quickly, flexibly and quantitatively, and the indication vector also can be applied to the screening and evaluation of the anti-EV 71 medicine, has high actual application value and has a broad application prospect in the field of medical science.

The invention discloses plastic vibration processing and sample molding integration test equipment and a method. The equipment comprises a hydraulic power system, a vibration power driving system, a test platform, a piston assembly, a central mould, a visualization device, a controlling system and the like. The equipment and the method combine vibration field quantity with mould sample molding, combine cutting, pressing, vibration and sample processing molding function into a whole, are different from rheological property research limited by polymer of a traditional rheometer, avoid form change of plastic mixture structures when materials in a test cavity are taken out, monitor a microstructure online directly or directly mold and obtain detecting samples. The plastic vibration processing and sample molding integration test equipment and the method can not only achieve the rheological property test of moving state and steady state of the polymer, but also be used for microstructure form research of a plurality of polymer systems under multi-element field quantity and influence rule research between processing performance and technological conditions. The plastic vibration processing and sample molding integration test equipment and the method can be widely applied to industries of material, chemistry, pharmacy, coating, food, building and the like.

This invention relates to a kind of light switch, it includes a base, a fiber conversion setting, fixed in one end of the base, a output fiber fixed platform, fixed in the other end of the base, face to the fiber conversion setting, a input fiber fixed bushing take in a input fiber, fixed in the fiber conversion setting; and two output fiber, fixed partly in the flute of output fiber fixed platform. The end of the input fiber protrudes the input fiber fixed bushing and reaches the flute to contrapose with the output fiber end. Comparing with exist technology, because the light switch in this invention has fiber contraposition character that beeline to beeline and fiber to fiber. The end of input fiber and the output fiber are in beeline to beeline contraposition, it can reduce the contraposition error; and the end of input fiber and the output fiber of the light switch are open, it is convenient to span optical test instrument to observe the contraposition situation of the fiber end.

The invention discloses a multifunctional modularization blood flow dynamics analog device. The device comprises a plurality of detachable and assembled modules with different functions. Each module possesses at least one channel. The plurality of modules can be connected with each other through the at least one channel so as to form a fluid of fluency circulation. One module of the plurality of modules is a pump module which is arranged on the fluid and possesses a linear motor. The pump module simulates contraction and diastole of a ventricle through a mode of driving the fluid based on waveform driving. The plurality of modules can be split into many free and independent modules, or be rearranged via different simple sequences or can realize different functions through accessing one or more additional modules. Through at least one channel, mutual connection is achieved and a new fluid is formed. The additional modules possess at least one channel. Each module provides a specific function and the above functions can be integrated into one multifunctional module.

The invention discloses a water loss and soil erosion measurement device. A bottom hole (4) is formed in the bottom of a soil container (1); a flange (5) is arranged at the edge of the top of the soil container (1); an edge hole (6) is formed in one side of the top of the side wall of the soil container (1); the interior of a bottom collector (2) is divided into at least two independent compartments (7); a convex edge (8) is arranged at the edge of the top of the bottom collector (2); the bottom collector (2) is connected to the lower side of the soil container (1); an external collection tank (3) is connected to the bottom side wall of the bottom collector (2) and corresponds to the edge hole (6) in the soil container (1). The water loss and soil erosion measurement device can comprehensively detect the water loss and soil erosion situation above and under the ground simultaneously, so that a monitoring result of water loss and soil erosion can better meet the actual water loss and soil erosion; the water loss and soil erosion measurement device is simple in structure and easy and convenient to operate, and is more convenient and direct to observe; the workload of a worker can be greatly reduced, and the water loss and soil erosion measurement device has outstanding practical significance.

The invention provides a lagging jack mounting arm. The lagging jack mounting arm comprises a telescopic arm rack; the rear end of the telescopic arm rack is articulated to a rotary pedestal; the rotary pedestal is arranged on a rotating device; the rotating device is used for driving the rotary pedestal to rotate; an arm rack pitching mechanism is arranged between the telescopic arm rack and therotary pedestal; the arm rack pitching mechanism is used for regulating the pitching angle of the telescopic arm rack; the front end of the telescopic arm rack is articulated with an operation basketmounting arm; the operation basket mounting arm is provided with an operation basket and an angle regulating telescopic arm; the angle regulating telescopic arm is provided with a gripper mechanism used for gripping a steel lagging jack; a leveling mechanism is arranged between the operation basket mounting arm and the telescopic arm rack; and the leveling mechanism is used for regulating the operation basket so that the operation basket is kept in a horizontal state. The lagging jack mounting arm can be used for automatically erecting a lagging jack inside a tunnel, can move the lagging jackto a specific position inside the tunnel, can also conveniently regulate the height, angle and direction of the lagging jack and the like.

The invention discloses a water-saving type high-pressure water steel sheet cutting machine for engineering machinery. The water-saving type high-pressure water steel sheet cutting machine comprises abase; a water collecting tank is arranged on one side of the outer wall of the top of the base, and a water guide plate is arranged at the inner bottom of the water collecting tank; supporting columns are arranged at four corners of the outer wall of the top of the water guide plate, and the outer walls of the tops of the supporting columns are provided with the same containing plate; water leakage holes are formed in the inner bottom of the containing plate at equal intervals, protrusions are arranged on the inner bottom of the containing plate at equal intervals, and each of the two ends ofthe outer wall of the containing plate is connected to a threaded pressing rod through threads; and each of the two sides of the outer wall of the top of the base is provided with a supporting plate,and an electric guide rail is arranged on the outer wall of the top of each of the two supporting plates. According to the water-saving type high-pressure water steel sheet cutting machine, water generated in the high-pressure water cutting process can be collected, moreover, the water is filtered through a water purification tank, then the water is discharged into a water storage tank again through a water supply pump to be recycled, so that water resources are saved, and the utilization rate of the water resources is improved.

The invention provides a device and method for achieving preoperative assessment of a congenital heart disease operation plan based on 3D printing. The method comprises the steps that normal person chest CT information is acquired, a normal person heart and lateral branch blood vessel stereo structure model is printed in a 3D mode, a normal person model is connected with an extracorporeal circulation machine to obtain normal person heart and lateral branch blood vessel physiological parameters, and then a standard contrast table is established; the normal person chest CT information is acquired, a doctor conducts simulated operation on a patient CT image, the normal person heart and lateral branch blood vessel stereo structure model after simulated operation is printed in a 3D mode, and the normal person model is connected with the extracorporeal circulation machine to obtain patient lateral branch blood vessel physiological parameters; the standard contrast table shows that the physiological parameter differences of a patient and a normal person are acceptable by the doctor. The risk brought by direct operative treatment performed by the doctor based on experiences is avoided, simulation of operative operation performed by the doctor is promoted, and the survival probability of the patient is improved.

The invention discloses a teaching model of an automobile automatic transmission. An outer clutch passes through a large bracket. An inner clutch is put into the outer clutch. A linear guide protrusion matches a linear guide groove. A left shaft sleeve passes through a left bracket. A left sun wheel shaft passes through the left shaft sleeve. A plug on the right end of the outer clutch is inserted into a groove on the left end of a left gear ring left shaft sleeve. A left planet carrier sleeves the left sun wheel shaft. Two planet wheels are arranged on both ends of the left planet carrier. The planet wheels are engaged with a left gear ring and a left sun wheel. The left planet carrier is fixedly connected with a connection frame. The connection frame is fixedly connected with a right gear ring. A cross flange on the right end of the left sun wheel shaft passes through the connection frame, and is inserted into a cross hole in the left end face of a right sun wheel. A right sun wheel shaft passes through a right shaft sleeve and a right sun wheel seat. The right shaft sleeve passes through a right planet carrier seat. Two planet wheels are arranged on both ends of a right planet carrier. The planet wheels are engaged with a right gear ring and a right sun wheel. The teaching model provided by the invention has the advantages of simple structure connection, easy assembling and disassembling and easy direct observation.

The invention discloses a three-dimensional unsteady slurry grouting test device. The three-dimensional unsteady slurry grouting test device comprises a fixing and loading system for accommodating a rock mass sample in a closing mode and a grouting system, wherein the grouting system is matched with the fixing and loading system and provides slurry for the rock mass sample. The rock mass sample isprovided with cracks, and the internal rock mass sample can be directly observed by the fixing and loading system. The invention further provides a method of observing the three-dimensional unsteadyslurry grouting process. The three-dimensional unsteady slurry grouting test device and the method of observing the three-dimensional unsteady slurry grouting process have the advantages of simple structure, convenient assembly, convenient direct observation of slurry flow characteristics and good promotion prospects.

The invention relates to the field of medical instruments, in particular to an assembled multi-section telescopic skin retractor. The assembled multi-section telescopic skin retractor is suitable forbeing fixed to the defect skin and closing the wound surface by means of traction force with certain strength. The device comprises two traction parts penetrating through the two longitudinal sides ofthe defect skin respectively and two adjusting parts used for adjusting the distance between the traction parts. Each adjusting part comprises (1) two traction bases located on the edge of the defectskin, two connecting parts arranged on the traction bases and used for fixing the traction parts, (2) a transverse adjusting rod arranged on the two traction bases and crossing the defect skin and anadjusting device arranged at one end of the adjusting rod and used for adjusting the effective length of the adjusting rod. The skin retractor is simple in structure and easy to install, the stretching amount of the skin near the soft tissue defect position of a patient can be accurately adjusted, and the operation process is simple, convenient and easy to implement; all the components of the device are located around the wound surface of the patient, the wound surface cannot be shielded, and the change of the wound surface and the tissue around the wound surface can be conveniently and directly observed.

The invention belongs to the technical field of hydrogel, and discloses transparent conductive hydrogel with single-sided self-adhesion as well as a preparation method and application thereof. The method comprises the following steps: adding an anionic surfactant into deionized water, conducting stirring at 30-80 DEG C, then adding methacrylic acid long-chain alkyl ester, conducting stirring at 10-40 DEG C, then adding acrylic acid, conducting magnetic stirring until the acrylic acid is completely dissolved, adding an initiator and acrylic acid short-chain alkyl ester, continuing stirring to realize uniform mixing, carrying out ultrasonic defoaming on an obtained solution, pouring the solution into a glass mold, carrying out reacting at a temperature of 50 to 70 DEG C to obtain the transparent hydrogel with single-sided self-adhesion, completely soaking the hydrogel in a mixed solution of ferric chloride and citric acid, taking out the hydrogel and washing the hydrogel. The hydrogel has unique single-sided self-adhesion, high strength, large deformability and good conductivity and transparency, can be used as a strain sensor, and has wide application prospects in the fields of electronic skin, intelligent wearable equipment and the like.

The invention discloses a printing and dyeing cloth water squeezing device. The device comprises a supporting frame, a first cloth pressing mechanism and a second cloth pressing mechanism; the first cloth pressing mechanism comprises a cloth feeding assembly for initially squeezing water from cloth and a cloth expanding assembly which cooperates with the cloth feeding assembly; the second cloth pressing mechanism includes a drive roller assembly, a driven roller assembly and a driving member for driving rotation of the drive roller assembly, and the drive roller assembly and the driven rollerassembly cooperate to each other for squeezing water from the cloth for the second time.

The invention discloses a cloth printing and dyeing device comprising a support frame, a detecting mechanism and a cloth bucket mechanism; the device is characterized in that the detecting mechanism comprises a cloth feeding assembly for extruding cloth and a cloth support assembly installed on the support frame; the cloth support assembly is cooperated with the cloth feeding assembly. According to the invention, by means of the cloth feeding assembly, most printing and dyeing waste water in cloth can be removed; and cloth can also be spread out and the effective squeezing is achieved; cloth can be spread out by the cloth support assembly so as to be convenient for workers to directly observe the state of the cloth after primary treatment; the cloth can also be straightened by the cloth support assembly to avoid overlap of cloth.