94results about How to "Convenient distance" patented technology

The invention discloses a photonic integrated circuit chip and a silicon optical integration platform, and aims to provide a specific waveguide structure on the photonic integrated circuit chip to realize efficient coupling with a common single-mode fiber, and meanwhile, a suspended structure is not introduced, so that the overall structure has relatively high mechanical stability. The method can pass high-temperature and high-humidity reliability test conditions of the photon integrated circuit chip, and is compatible with reflow soldering, silicon through hole and other processes.

The multifunctional lawn mower comprises an oil tank, a first needle bed and a second needle bed, tufting needles are detachably installed at the bottom of the first needle bed and the bottom of the second needle bed, the first needle bed and the second needle bed are arranged in parallel in a front-back spaced mode in the front-back direction of the lawn mower, and a first needle seat is detachably installed on the rear side of the first needle bed; the front side of the first needle bed is detachably provided with a first needle bed, the front side of the second needle bed is detachably provided with a second needle bed, each first needle bed and each second needle bed are provided with a vertically-arranged tufting needle, the tufting needles on the first needle beds and the tufting needles on the second needle beds are arranged in a staggered mode in the width direction, and the first needle bed is driven by a third driving mechanism to do reciprocating transverse movement in the width direction; the second needle bed is driven by a fourth driving mechanism to do reciprocating transverse movement in the radial direction, and the oil tank is driven by an oil tank transverse movement mechanism to do reciprocating transverse movement in the front-back direction. Products with rectangular long-strip-shaped and square blocky lawn patterns can be produced, products with rhombus-shaped, heart-shaped and more lawn patterns in different shapes can also be produced, and the multi-pattern fancy lawn requirements of users can be met.

The present invention discloses a robot path planning method based on an improved RRT algorithm. First, nodes are generated in the form of resultant vectors, which is conducive to quickly finding a path. Secondly, the use of dynamic step size allows the algorithm to avoid the problem of difficulty in finding a path in a complex obstacle environment to a certain extent, and the anti-random tree reverse growth avoids a large amount of calculation caused by too many nodes in the later stage. Further, based on the triangle pruning strategy, the path cost is effectively reduced on the basis of the initial path, and the pruned path is smoothed using a cubic B-spline curve, which reduces the jitter of the robot and reduces the wear and tear caused by the movement of the robot. By improving the RRT algorithm, the path distance is reduced and the path quality is optimized, and blind sampling is avoided while improving the planning efficiency.

The invention belongs to the technical field of agricultural biology, and discloses a method for inducing curcuma wenyujin tissue culture seedling test-tube micro rootstocks, which comprises the following steps: inoculating terminal bud cluster proliferation buds of curcuma wenyujin obtained by conventional tissue culture into a rootstock induction culture medium for rooting culture for 30 days to obtain tissue culture seedlings with rootstocks, the rhizome induction culture medium is prepared from 1 / 2MS, 0.1-1.0 mg / L of NAA, 30 g / L of cane sugar, 1-3 mg / L of choline chloride and 1-3 mg / L of compound sodium nitrophenolate, the pH is 5.8, and the weight ratio of choline chloride to compound sodium nitrophenolate is 1: (0.3-2). According to the method, the formation of the curcuma wenyujin test-tube micro rhizomes is induced in vitro, the sterile micro rhizomes are directly transplanted, and the micro rhizome artificial seeds are manufactured for sowing, so that a green seedling hardening and temporary planting link is omitted, and the seedling loss caused by strict requirements of green seedlings on humidity is reduced, and the test-tube micro rhizome seedlings are beneficial to storage and long-distance transportation; therefore, the seedling breeding efficiency of the rhizome plants is improved.

According to the efficient multi-wire gas shielded welding gun, three auxiliary gun bodies are integrated in a main gun body shell through a welding gun base, included angles are designed between the axes of the three auxiliary gun bodies and the axis of a main gun body, three electric arcs generated by the three auxiliary gun bodies during welding can be gathered, and welding bead separation generated under small welding parameters is effectively prevented; when the three sublance bodies ignite arcs at the same time, mutual interference among three arcs under large welding parameters is effectively reduced, and stability of the welding process is facilitated; the upper end structure of the welding gun base is designed to be of a hollow structure, circulating cooling of the three sub-gun bodies can be enhanced through external cooling water during welding, meanwhile, the three sub-gun bodies are internally provided with respective water cooling systems, and the water cooling effect of the whole gun body is remarkably improved through the cooling mode, so that large-current and large-voltage welding is achieved.

The utility model discloses a cold rolling mill with an adjusting mechanism, which belongs to the technical field of cold rolling mills and comprises a bottom shell, the top of the bottom shell is fixedly connected with a top shell, the top of the top shell is fixedly connected with an electric hydraulic push rod, and the bottom end of the electric hydraulic push rod is fixedly connected with a U-shaped fixing shell. First bearings are arranged on the opposite inner walls of the U-shaped fixing shell, first rotating shafts are arranged in the two first bearings in a penetrating mode, the opposite ends of the two first rotating shafts are fixedly connected with first rotating rollers, and second bearings are arranged on the opposite inner walls of the top shell. The cold-rolling mill has the beneficial effects that the electric hydraulic push rod is arranged and drives the U-shaped fixing shell to ascend and descend, so that the U-shaped fixing shell drives the first rotating roller to be away from or close to the second rotating roller, the distance between the first rotating roller and the second rotating roller is conveniently adjusted, and the cold-rolling mill is conveniently adjusted according to use requirements; and steel bars with different diameters can be conveniently machined.

The invention belongs to the technical field of carbon dioxide capture low-energy-consumption safe storage methods, and discloses a marine diesel engine tail gas carbon dioxide capture low-energy-consumption safe storage method which comprises a carbon dioxide capture system, a low-energy-consumption system and a safe storage system. The carbon dioxide trapping system is mainly used for separating carbon dioxide from tail gas of a marine diesel engine for subsequent sealing or utilization, the carbon dioxide trapping system is divided into a pretreatment unit and a carbon trapping unit, and the carbon dioxide can be conveniently transported and sealed through liquefaction storage; the volume of the liquefied carbon dioxide is greatly reduced, long-distance transportation and storage are facilitated, the transportation cost is reduced, the liquefied carbon dioxide can also be used as a resource, for example, the liquefied carbon dioxide can be used in the fields of industrial raw materials, refrigerants, food preservation and the like, sustainable utilization of the resource is achieved, and the energy storage mode has the advantages of low cost, high efficiency, long service life and the like. And the energy utilization efficiency can be improved.

The utility model provides a testing device for a train brake pad friction block texture structure, belongs to the technical field of brake pad friction blocks, and aims to solve the stick-slip vibration phenomenon occurring when a high-speed train is braked. In the prior art, a large number of tests and debugging are needed and wide popularization is difficult to realize when the stick-slip vibration is inhibited by integrally changing the property of a friction block or installing a viscoelastic damper and the like. In the utility model, different textures are designed on the surface of the brake pad friction block; the surface texture design based on the friction blocks is adopted to restrain the stick-slip vibration phenomenon of the train braking system, the method is a method for actively restraining the stick-slip vibration from the source, the structure of the braking system does not need to be modified or increased or decreased, and therefore the operation and maintenance cost of a train is not increased, and popularization is easier to achieve.

The invention discloses a vehicle and pedestrian tracking algorithm recommendation method based on Deep-sort improvement. Relates to the field of recommendation methods, an improved Deep-Sort serves as a tracker, due to the fact that a tracking object of a Deep-Sort algorithm is a person, a research object of the invention is a vehicle and an appearance model is not applicable, the improved Deep-Sort improves a feature extraction network of the Deep-Sort in three aspects: the feature extraction network is rebuilt based on ResNet-34, so that the feature extraction network is more suitable for extraction of vehicle features; a center loss function and a triple loss function are introduced and are combined with a Softmax loss function for use, so that intra-class and inter-class distances of the network are better optimized; and a cosine annealing learning rate attenuation method is used, so that the final convergence effect of the network training model is better. The improved feature extraction network is trained, and experimental results show that the vehicle appearance model obtained through training has good classification capability, and the recognition capability of vehicle features is improved compared with an original model. In a multi-moving vehicle tracking experiment, the D-MMVT algorithm is tested by using an OTB-100 data set and a daily monitoring road video, the accuracy rate MOTA, the precision rate MOTP and the ID switching frequency are used as evaluation standards, a comparison experiment is performed with other tracking algorithms, and an experiment result shows that the D-MMVT algorithm has a better tracking effect on a severely shielded target and a small target; and the tracking accuracy and precision are improved.

The invention discloses a two-stage process for preparing powdery quality-improving fuel through biomass baking, which comprises the following steps: S1, a drying procedure: carrying out coarse crushing on biomass to form biomass particles, and screening and drying the biomass particles; s2, a low-temperature baking and powdering process: baking the dried biomass particles, and performing multi-stage fine crushing and grinding on the biomass particles in the baking process to form biomass powder; and S3, cyclic utilization of the baking gas: circularly inputting one part of the baking gas generated in the biomass particle baking process in the step S2 into the step S2 to provide heat for the baking process, and returning the other part of the baking gas to the step 1 to provide heat for the drying process. According to the technology for preparing the powdery upgrading fuel through two-section type biomass baking, powder preparation is completed while baking is conducted through the stirring unit, the baking powder preparation time is greatly saved, and compared with three-section type baking powder preparation, the production efficiency is greatly improved, and the baking efficiency is greatly improved.

The invention belongs to the technical field of metal welding, and particularly relates to a special-shaped metal sealing element welding forming machining device which comprises a base, two second mounting seats arranged oppositely are fixedly connected to the upper surface of the base, a bearing seat for placing a metal sealing element is rotationally connected between the two second mounting seats, and a welding mechanism is arranged on one side of the outer wall of the base; through cooperation of the welding mechanism and the cleaning mechanism, the welding angle of the metal sealing element is conveniently adjusted, the welding position and angle are adjustable under different welding requirements so as to improve the welding quality and efficiency, a cleaning brush and a cleaning rod are combined, automatic cleaning of a welding part is achieved, the cleaning efficiency is improved, and the welding quality is improved. The cleaning thoroughness and uniformity are ensured, impurities such as oxides, grease and welding slag are effectively removed, good surface conditions are provided for subsequent welding or processing, and the cleaning requirements of special-shaped metal sealing elements with different sizes and shapes can be met.

The invention discloses a scrubbing machine for preserved meat processing and a preserved meat processing system, and relates to the technical field of preserved meat processing. The scrubbing machine for preserved meat processing and the preserved meat processing system comprise a water receiving tank, distance adjusting mechanisms, a driving mechanism and a cleaning mechanism, the distance adjusting mechanisms are arranged on the two sides of the water receiving tank, each distance adjusting mechanism comprises an arc-shaped opening, an I-shaped sliding block, a first rotating rod and a movable plate, and the two sides of the water receiving tank are provided with two sets of arc-shaped openings which are symmetrical front and back; an I-shaped sliding block is slidably mounted on the inner wall of each arc-shaped opening, one side of the water receiving tank is rotationally connected with one ends of two first rotating rods, the outer walls of the two first rotating rods are fixedly connected with the interiors of a movable plate, and the tops of the movable plates are fixedly connected with one sides of the I-shaped sliding blocks. The distance between the two sets of cleaning rolling brushes is adjusted, it is guaranteed that bristles on the cleaning rolling brushes make contact with preserved meat to the maximum extent, sufficient friction force is provided for brushing of the preserved meat, the cleaning effect of the preserved meat is guaranteed, and the cleaning device can be suitable for different types of preserved meat.

The invention relates to a high-integration-level silicon optical module which comprises a bearing frame, the bearing frame comprises an upper surface and a lower surface, the upper surface is concavely arranged towards the lower surface to form an upper step, the lower surface is concavely arranged towards the upper surface to form a lower step, and the upper step and the lower step are spaced to form a containing space; the light emitting structure comprises a PCB arranged on the lower step and a laser assembly arranged on the PCB, and the laser assembly is located in the containing space; the silicon optical assembly is arranged on the upper step, the silicon optical assembly comprises a silicon substrate, and an optical waveguide and a micro lens located at the end of the optical waveguide are formed on the surface of the silicon substrate; and the optical fiber assembly comprises a clamping main body and a plurality of optical fibers arranged side by side, each optical fiber comprises a coupling surface arranged opposite to the micro lens, and the laser beams emitted by the light emitting assembly are coupled into the optical fibers through guiding of the micro lens and the optical waveguide.

The invention discloses a multipurpose fructus aurantii picking machine. The multipurpose fructus aurantii picking machine comprises a picking mechanism, a lifting mechanism and a transportation control mechanism, the picking mechanism is connected to the surface of an upper bottom plate of the lifting mechanism, and the lifting mechanism is detachably arranged on the surface of a bearing platform at the front end of the transportation control mechanism; the picking mechanism comprises a handheld moving rod, a collecting sub-mechanism, a camera shooting sub-mechanism and a rotary connecting sub-mechanism; the lifting mechanism comprises an upper bottom plate, a lower bottom plate, a connecting assembly and an air cylinder assembly. The transportation control mechanism comprises a front end bearing platform, a transportation platform, a collecting basket, a displayer, a control table, an air source assembly, a seat, a pneumatic foot switch, a storage battery and a power chassis. The fructus aurantii picking machine solves the technical problems that in the prior art, a fructus aurantii picking machine is single in function, low in picking efficiency and frequent in missing picking.

The utility model provides a simple test tube photocatalytic reaction device which comprises a plurality of test tubes, gaskets are connected to the test tubes, sleeve holes are formed in the gaskets, six test tube sleeve holes are further formed in the centers of the gaskets, each test tube sleeve hole is fixedly connected with the corresponding test tube in a clamped mode, and the bottoms of the test tubes are suspended. The annular wall of the outer edge of the gasket is attached to the light-transmitting wall, the light-transmitting wall is attached to the first lamp strip, and the other side of the first lamp strip is attached to the wall of the connector. A shading cover is arranged at the top end of the device wall, an outlet hole is formed in the shading cover, a power line is connected into the outlet hole, and the power line is connected with the second lamp strip.

This invention concerns an intravascular blood pump for percutaneous insertion into a patient's blood vessel. The blood pump comprises a pump casing (2) having a blood flow inlet (21) and a blood flow outlet (22), and an impeller (3) arranged in said pump casing (2) so as to be rotatable about an axis of rotation (10). The impeller (3) has blades (31) sized and shaped for conveying blood from the blood flow inlet (21) to the blood flow outlet (22). The blood pump comprises a drive unit (4) for rotating the impeller (3), the drive unit (4) comprising a plurality of posts (40) arranged about the axis of rotation (10). Each of the posts (40) has a longitudinal axis (LA) and an impeller-side end (420) pointing towards the impeller (3). A coil winding (44) is disposed around each of the posts (40) and has an impeller-side end pointing towards the impeller. The coil windings (44) are controllable so as to create a rotating magnetic field, wherein the impeller (3) comprises a magnetic structure (32) arranged to interact with the rotating magnetic field so as to cause rotation of the impeller (3). The posts (40) do not extend with their impeller-side ends (420) radially over the impeller-side ends of the coil winding (44) disposed around the respective posts (40), wherein the term radially relates to the longitudinal axis (LA) of the posts (40).

The application provides a vehicle path optimization method based on a dynamic constraint evaluation strategy multi-objective ant colony algorithm, and aims at a multi-constraint multi-objective vehicle path optimization problem. The application takes the number of vehicle uses and total driving distance as optimization targets, adopts a dynamic constraint evaluation strategy, divides a population into two sub-populations, uses a sub-population with evolution advantages to guide an ant colony to search, improves the convergence of a solution set, designs an evolution strategy based on Gaussian variation to search for a sub-population with strong constraint violation degrees, improves the diversity of optimal solutions, obtains an optimal vehicle path optimization scheme, reduces enterprise transportation costs, and increases logistics distribution benefits.

The utility model relates to welding equipment technical field, concretely relates to a kind of intelligent gantry submerged arc automatic welding machine, it includes: piece platform, top is equipped with multiple piece grooves along length direction, and both sides are equipped with machine tool track respectively;Welding machine tool, welding machine tool is transversely placed above piece platform, and two ends are respectively equipped with with machine tool track cooperation walking mechanism, welding machine tool top is respectively equipped with welding machine power supply corresponding each piece groove;Movable crossbeam, movable crossbeam is horizontally arranged in welding machine tool middle part, and movable crossbeam is equipped with with each piece groove corresponding cross slide;Telescopic arm, respectively with each cross slide corresponding each cross slide connection, bottom end is respectively equipped with welding torch, welding torch is connected with corresponding welding machine power supply;Controller, controller is set in one side of welding machine tool, and walking mechanism, telescopic arm, welding machine power supply and welding torch are respectively electrically connected with controller.The utility model is integrated, and automation design has significantly improved the efficiency and quality of I-shaped steel structure welding.

The utility model discloses a compressor and refrigeration equipment. The compressor comprises a shell, a motor assembly, a supporting assembly, a crankshaft and a spring. The supporting assembly comprises a motor bearing which is provided with a shaft hole. The crankshaft comprises an assembling part which is rotationally arranged in the shaft hole, the crankshaft is provided with an oil supply channel, the assembling part is provided with an oil outlet hole, and the two ends of the oil outlet hole communicate with the oil supply channel and the shaft hole correspondingly; the spring is arranged in the oil supply channel and located above the oil outlet hole. In the direction of the central axis of the crankshaft, the maximum distance between the upper end face of the crankshaft and the lower end of the spring is H1, the minimum distance between the center of an outlet of the oil outlet hole and the lower end of the spring is H2, and H2 / (H1 + H2) is larger than or equal to 0.1 and smaller than or equal to 0.5. By arranging the oil outlet hole and optimizing the distance between the spring and the oil outlet hole, more refrigerant oil is output to the shaft hole through the oil outlet hole, the lubricating performance between the crankshaft and the motor bearing is greatly improved, and the reliability of the compressor is improved.

This utility model relates to the field of gypsum dewatering technology and discloses a device for uniformly distributing concentrated desulfurization wastewater onto a gypsum dewatering belt conveyor. The device includes a belt dewatering machine body and a distributor. A mounting plate is symmetrically fixed to the belt dewatering machine body. The distributor includes two symmetrically arranged locking blocks, both of which are engaged with the mounting plate. A support column is fixed to the top of each locking block, and a lifting column slides within the support column. A cloth frame is fixed to the top surface of the lifting column, and an adjusting component is installed on the cloth frame. The adjusting component includes a rotating rod, on which multiple rotating seats are mounted. A buckle is fixed to the side wall of each rotating seat, and a nozzle is engaged with the buckle. This utility model enables the spacing between multiple nozzles to vary uniformly, adapting to gypsum dewatering belts of different widths. It also effectively adjusts the nozzle spray angle according to requirements, ensuring that the concentrated desulfurization wastewater is sprayed at the optimal angle, resulting in a uniform distribution of the concentrated liquid on the surface of the gypsum filter cake.

A supporting clamp comprises a base and a clamp body, a plurality of universal wheels which are evenly distributed are arranged at the bottom of the base, the clamp body used for clamping and supporting the end of the H-shaped steel and a hydraulic cylinder used for driving the clamp body to conduct lifting adjustment are arranged on the upper portion of the base, and the clamp body comprises a vertical plate, a top plate and a supporting piece. The vertical plate is vertically arranged on one side of the upper surface of the base, a supporting piece perpendicular to the vertical plate and extending out of the base is arranged on the lower side of the plate face, facing the H-shaped steel, of the vertical plate, and a top plate perpendicular to the vertical plate is arranged on the upper side of the plate face, back to the H-shaped steel, of the vertical plate. According to the H-shaped steel transferring device, short-distance pushing and rotating operation of H-shaped steel can be achieved by jacking and supporting the two ends of the H-shaped steel, the operation difficulty of short-distance transferring of the H-shaped steel is effectively reduced, and the transferring efficiency of the H-shaped steel is improved; and the two ends of the H-shaped steel can be clamped and fixed, so that the H-shaped steel can be efficiently and conveniently hoisted and transferred.

The invention relates to the field of depth detection, in particular to a matching device for improving sonar sounding precision and a high-precision sonar sounding method.The matching device comprises a rod body assembly, a connecting base, a mooring rope assembly, a rod body stabilizing piece, a mounting frame and a rotating holder; the rod body assembly is arranged in a vertical state, is fixedly connected with a surveying vessel through a connecting seat and is arranged at the side part of the surveying vessel, the sonar detector is mounted at the bottom of the rod body assembly, the antenna is mounted at the top of the rod body assembly, and the angle attitude instrument is mounted at the middle-upper section position of the rod body assembly and is close to the antenna. The distance between the angle attitude instrument and the sonar detector is more convenient, and the error of sonar measurement is reduced. The stability of the sonar detector in the dynamic sailing process is guaranteed through the cable assembly, shaking caused by scouring of ocean current to the sonar detector is reduced, and the stability of sonar measurement is improved. Multi-degree-of-freedom rotation of the sonar detector is realized through the rotating holder, and a vertical face scanning function can be realized on the premise of satisfying depth measurement.

The present invention relates to a display device comprising: a display unit on which an image is displayed; a mount bracket which is formed to be couplable to the rear surface of the display unit; a first arm which is connected to the mount bracket to be vertically tiltable with respect thereto; a second arm which is connected to an end of the first arm to be rotatable relative thereto about a vertically arranged axis; a third arm which is connected to an end of the second arm to be rotatable relative thereto about a vertically arranged axis; a pillar on which the third arm is provided to be movable up and down; and a clamping unit which is fixed to an object to which the display device is to be fixed, the pillar being connected to the upper surface of the clamping unit to be rotatable relative thereto about a vertically arranged axis. Accordingly, the height and distance of the display unit to a user's eyes can be easily controlled.

The utility model discloses an electromagnetic cooking utensil, and belongs to the technical field of kitchen utensils, the cooking utensil comprises a shell and an electromagnetic wire coil arranged in the shell, and further comprises a nonmetal first wave-absorbing shielding piece located between the shell and the electromagnetic wire coil, the first wave-absorbing shielding member is pasted and fixed on one side, facing the electromagnetic wire coil, of the housing. According to the application, an additional space for accommodating a fastener and a mechanical fixing structure is not needed in a sticking and fixing mode, so that the internal space of the cooking utensil can be more effectively utilized, reasonable utilization of the space is realized, on one hand, miniaturization of the whole cooking utensil is facilitated, on the other hand, the distance between the magnetic isolation sheet and the electromagnetic wire coil can be optimized, and the service life of the electromagnetic wire coil is prolonged. The probability of resonance of the magnetism isolating sheet under the action of magnetic field force is reduced, the mounting position of the magnetism isolating sheet is guaranteed, and therefore the magnetism isolating effect is guaranteed.

The invention discloses a silicon wafer, a solar cell, a photovoltaic module and a processing method of the silicon wafer, which are used for ensuring the uniformity of the mechanical strength of the silicon wafer and reducing the fragment rate of the silicon wafer and the module end. At least one side of the silicon wafer is provided with a groove, the surface of the silicon wafer is provided with a plurality of cutting line marks, the cutting line marks extend along a group of opposite sides of the silicon wafer, and the groove is located on at least one side of the other group of opposite sides of the silicon wafer. According to the silicon wafer, stress superposition of the groove and the cutting line marks in the direction perpendicular to the edge where the groove is located is avoided, the pressure borne by the surface of the silicon wafer in the direction parallel to the edge where the groove is located is basically not affected by the groove, and therefore it is guaranteed that the overall mechanical strength uniformity of the silicon wafer is good; according to the invention, the fragmentation rate of the battery assembly end manufacturing process can be reduced, the stability and reliability of the assembly end are improved, the production cost is reduced, and the product quality and working safety are improved.

The utility model discloses a transmission device for a pulsator washing machine. The transmission device comprises a supporting frame. One end of the support frame is fixedly connected with a clutch, and the other end is movably provided with a driving motor; the outer side of the driving motor is sleeved with a locking assembly, one end of the locking assembly is provided with an adjusting assembly, and the adjusting assembly penetrates through the supporting frame. According to the utility model, the adjusting assembly drives the locking assembly sleeved on the outer side of the driving motor to move, so that when the adjusting assembly drives the driving motor to move, the locking assembly is separated from the supporting frame, and the driving motor is driven by the adjusting assembly to move. And after the driving motor stops moving, the adjusting assembly enables the locking assembly to lock the supporting frame, so that the distance between the clutch and the driving motor is adjusted more conveniently and more flexibly, the transmission belt of the device is replaced or detached more flexibly, and the service life of the device is prolonged. The wide popularization is worthy.

The utility model relates to the technical field of lamps, and discloses an adjustable embedded line lamp which comprises a lampshade and a lamp body installed in the lampshade, expansion plates are detachably installed on the left side and the right side of the lampshade, and adjusting assemblies are arranged between the expansion plates and the lampshade. A positioning assembly is further arranged between the expansion plate and the lampshade. The adjusting assembly comprises an adjusting rod fixedly connected to the outer wall of the expansion plate and inserted into the inner side of the lampshade, a limiting block fixedly connected to the end face of the adjusting rod, a spring connected to the outer wall of the adjusting rod in a sleeving mode and an outer threaded sleeve connected to the outer wall of the adjusting rod in a sleeving mode and connected to the inner side of the lampshade in a threaded mode. According to the adjustable embedded line lamp, the width of the lampshade is conveniently expanded through the arranged expansion plate, the distance between the expansion plate and the lampshade is conveniently adjusted through the arranged adjusting assembly, the overall width of the lampshade is conveniently adjusted, and the lampshade can adapt to building covered channels with different widths.

The utility model discloses a screening device with an anti-blocking function, and particularly relates to the technical field of medicine screening, the screening device comprises a barrel body and a closing door hinged to the outer wall of the barrel body, and a screening groove is formed in the barrel body. A rotating block is arranged on the outer wall of a driving shaft, a first rotating plate is arranged on the outer wall of the rotating block, a second rotating plate is arranged on the outer wall of the first rotating plate, a second magnet is arranged on the outer wall of the first rotating plate, a third magnet is arranged on the outer wall of the second rotating plate, a moving rod is arranged in a fixed plate, and a knocking plate is arranged at the top of the moving rod. According to the medicine raw material screening device, when the screening device conducts screening treatment on medicine raw materials, most of the medicine raw materials are screened through the screening net, and when the screening net is used for a long time, screening meshes in the screening net are prone to being blocked by the medicine raw materials; the equipment can perform vibration cleaning on the screening meshes in real time, so that the subsequent filtering and screening efficiency of the screening meshes cannot be reduced.

The auscultation system comprises a pickup collection and signal processing system, a heart and lung sound intelligent detection system and a remote cloud server system, the pickup collection and signal processing system comprises a wearable device and a main control computer, and the wearable device is provided with a plurality of pickup sensors; the plurality of pickup sensors are arranged on the wearable equipment in an array mode and are used for collecting heart and lung sound data of different areas at the same time; and the main control computer is used for filtering the collected heart and lung sound data, transmitting the processed heart and lung sound data to the intelligent terminal so as to carry out identification and diagnosis on the intelligent terminal and display a result, and transmitting the processed heart and lung sound data to the remote cloud server system through a network function of the intelligent terminal. The telescopic part is additionally arranged on the pickup sensor, automatic adjustment of the telescopic part is achieved through air pressure control, it is ensured that the pickup sensor can be close to the bodies of users with different figures, therefore, more accurate heart and lung sound signals are captured, and the accuracy and reliability of the auscultation system are improved.

The utility model relates to the technical field of plastic film winding drums, and discloses plastic film winding drum quick replacement equipment which comprises a base and a winding drum, a supporting table is fixedly connected to the upper end of the right side of the base, and a first supporting pile is fixedly connected to the upper end of the left side of the base. A servo motor drives a shifting block to horizontally reciprocate along a strip-shaped opening under the limiting effect of a limiting sliding groove, the relative distance between a second supporting pile and a first supporting pile can be conveniently adjusted, winding drums of different specifications can be conveniently positioned, the structure is simple and practical, drum shafts at the two ends of the winding drums are inserted into cylindrical inserting grooves, and the winding drums can be conveniently and rapidly positioned. A conical protrusion is inserted into a conical clamping groove, a winding drum shaft is effectively clamped and fixed into a rectangular groove, at the moment, a movable plate is stressed to move in a rectangular opening and compress a plurality of first springs, so that the first springs are matched with the movable plate to clamp and position a winding drum, the structural stability is good, and rapid replacement is convenient; and the film winding efficiency is improved.