69results about How to "Reduce the angle" patented technology

The utility model provides a satellite antenna structure and a satellite communication device, and relates to the technical field of satellite communication. The satellite antenna structure provided by the utility model comprises a plurality of antenna array surfaces, the angles of the plurality of antenna array surfaces are different, and the plurality of antenna array surfaces can work independently; each antenna array surface is used for forming a beam coverage area; according to the invention, the corresponding wave beam coverage areas are respectively formed at different angles through the plurality of antenna array planes, so that the whole airspace is correspondingly divided into the plurality of sub airspaces, the coverage of the whole airspace is realized, the scanning range is improved, the angle required by each antenna array plane during scanning is reduced, the scanning loss generated during large-angle scanning is reduced, and the scanning efficiency is improved. The antenna gain is improved; and secondly, the plurality of antenna array surfaces can independently work to generate wave beams, so that the satellite antenna structure can generate a plurality of wave beams at the same time, thereby obtaining a wider wave beam coverage range at the same time, and improving the scanning efficiency.

The utility model discloses a wire guide mechanism capable of reducing a wire outlet angle and a fishing reel thereof. The wire guide mechanism comprises a wire guide and a transmission lead screw, a wire guide hole is formed in the wire guide gauge; the transmission lead screw comprises a screw rod and a nut capable of translating along the screw rod in a reciprocating manner; the device further comprises a swing arm and a swing support, the tail end of the swing arm is rotationally connected with the nut, the lead gauge is connected to the upper side of the head end of the swing arm, and a hinge point is further arranged between the head end and the tail end of the swing arm. The swing support is fixedly arranged relative to the position of the transmission lead screw, and the swing arm is rotationally connected with the swing support through a hinge point. When the nut of the transmission lead screw moves along the screw rod, the swing arm can be driven to rotate around the circle center of the hinge point, so that the wire guide can swing. According to the fishing reel, the swinging arm is arranged, the position of the guide wire gauge can be extended through the swinging arm, the guide wire gauge is made to be far away from a wire cup of the fishing reel, and therefore the angle of appearance and take-up of the fishing reel is effectively reduced, and the possibility that a fishing wire is broken in the using process of the fishing reel is reduced.

The invention relates to the technical field of automobile coating testing, in particular to an automobile coating adhesion performance testing machine and a testing method.The automobile coating adhesion performance testing machine comprises a base, a limiting block used for limiting a sample plate is fixedly installed on the upper end face of the base, an n-shaped frame located above the limiting block is fixedly installed on the upper end face of the base, and a downward pressing mechanism is arranged on the n-shaped frame. A limiting, cutting and adhering integrated operation model is adopted to complete cross-grid testing of different intervals of the automobile coating sample plate, an efficient, accurate and standardized testing process is achieved, uniform pressure control ensures that the cutting depth and force of grids with different intervals on the surface of the sample plate are consistent, and a base material is prevented from being damaged; the testing efficiency is greatly improved through cross-shaped limiting and synchronous cutting, it is ensured that the angle of each grid is accurate to be 90 degrees, meanwhile, coatings with different hardness and thicknesses can be easily coped with only by adjusting the pressure, the operation consistency is remarkably enhanced in the automatic adhesive tape adhering and tearing process, and the testing quality and efficiency are comprehensively improved.

The invention relates to an ultra-wideband flexible transparent ultra-thin metamaterial wave absorber, which solves the problems of low profile, wide bandwidth and insensitive polarization and angle of the wave absorber, and belongs to the field of electromagnetic metamaterials. The antenna comprises a first dielectric layer, a second dielectric layer and a third dielectric layer which are sequentially arranged from bottom to top, the first dielectric layer and the third dielectric layer are PET substrates; the second dielectric layer is a PVC layer; the upper surface of the third dielectric layer is provided with conductive film units which are arranged periodically, and the lower surface of the first dielectric layer is covered with a conductive film. The upper surface of the third dielectric layer is provided with four conductive thin film units which are periodically arranged, and each conductive thin film unit is an ITO resistive thin film with a cross-shaped pattern. According to the invention, the flexible PVC is used as the dielectric substrate, the PET is used as the reflection bottom plate and the resonance layer, and the conductive film pattern of the resonance layer is optimally designed, so that the absorption performance of which the absorption rate is greater than 90% is realized within the frequency range of 12.02-102.91 GHz, and the relative absorption bandwidth can reach 158.1%.

The invention relates to the technical field of pipeline detection, and proposes a pipeline pressure test device, comprising a support plate, a docking nozzle, a supporting mechanism, a protective mechanism and a buffer mechanism, wherein two support plates are arranged opposite to each other, two docking nozzles are provided, and the two docking nozzles are respectively detachably arranged on both ends of a pipeline, a supporting mechanism is connected to the two support plates, the supporting mechanism is arranged between the two support plates, the supporting mechanism is used to support the pipeline, two protective mechanisms are provided, the two protective mechanisms are respectively rotatably arranged on the two support plates, the protective mechanisms are in contact with the docking nozzles, the protective mechanisms are used to support and protect the pipeline, a plurality of buffer mechanisms are provided, the buffer mechanisms are rotatably connected to the support plates, and the buffer mechanisms are used to buffer and support the protective mechanisms. Through the above technical scheme, the problem that it is difficult to support, fix and protect the pipeline when performing a pressure test on the pipeline in the prior art is solved.

The invention relates to a carbon fiber composite material large-scale frame structural member layering design method which is characterized by comprising the following steps: step 1, structure splitting design: splitting a large-scale frame structural member into four layering structures including an inner layering area, a middle layering area, an outer layering area and a bending reinforcing area, the four-part layering structure is specifically designed as follows: in an inner layering area, the layering area is an inner side annular layering area, namely, a structure whole continuous and through layering related to the innermost side surface of the large frame structural part, so that loading force borne by all positions can be dispersed and transmitted to the whole structure in the fiber direction; through strict and ingenious design, the layering design method of the carbon fiber composite large-scale frame structural member is changed from original rough design and manual on-site modification and cutting into a machine cutting one-cutting type, so that secondary cutting of the carbon fiber prepreg is not needed in the laying process, and the precision of a finished product is guaranteed.

The utility model belongs to the technical field of packaging mechanical equipment, and relates to a bag feeding mechanism which comprises a bag feeding swing arm, the upper portion of the bag feeding swing arm is rotationally connected with a rack, and the two ends of a mounting rod on the lower portion of the bag feeding swing arm are each provided with a clamping jaw assembly. The clamping jaw assembly comprises a clamping jaw mounting seat, a driving gear and a driven gear are rotationally arranged on the clamping jaw mounting seat, the driving gear is meshed with the driven gear, the driving gear drives the front bag clamping jaw to rotate synchronously, the driven gear drives the rear bag clamping jaw to rotate synchronously, and the front bag clamping jaw and the rear bag clamping jaw are matched with each other to clamp a bag; and the driving gear is driven by a driving component mounted on the clamping jaw mounting seat to operate. The bag feeding mechanism is reasonable and ingenious in structure, a bag can be reliably clamped through the front bag clamping claw and the rear bag clamping claw which are matched with each other, the front bag clamping claw and the rear bag clamping claw are matched with each other, and action is reliable and accurate; and the swing amplitude of the swing arm can be effectively reduced by matching with the bag feeding swing arm with a special structure.

The invention discloses a hawthorn medicine wastewater treatment device and a comprehensive treatment method thereof, and relates to the technical field of wastewater treatment.The hawthorn medicine wastewater treatment device comprises a wastewater treatment pond, and a flocculation impact mechanism is arranged at the top of the wastewater treatment pond; by arranging a flocculation impact mechanism and adopting an inclined and inclined lower columnar high-pressure spraying mode, when a large amount of flocculating agent is flushed into wastewater in a wastewater treatment tank, the wastewater is fully scattered and rapidly flows by utilizing high pressure, and meanwhile, the wastewater is rapidly diffused in a mode of flushing away from the center of the wastewater treatment tank to the periphery of the wastewater treatment tank; the waste water diffused to the periphery of the waste water treatment tank is turned over to the upper layer and flows back to the center of the waste water treatment tank through the upper layer, so that a flocculating agent is automatically sprayed, the mixing effect in the waste water treatment tank is completed, and the function of turning over and circulating is achieved through spraying in the inclined lower direction; the problem that part of wastewater dirt deposited at the bottom cannot be in full contact with the flocculating agent is effectively prevented.

The embodiments of the present application disclose a path planning method, device, equipment and storage medium to solve the problem that the traditional path planning method cannot consider the influence of special areas and traverses many nodes and turning points during path planning. The present application improves the A* algorithm based on the regular hexagonal grid map modeling, optimizes the calculation method of the mobile cost, so that the environmental information can be fully considered during the search, the mobile cost of the node can be flexibly set, and the optimality of the planned path can be maintained. By introducing an adaptive heuristic, the number of traversed nodes is reduced and the search speed is increased; by designing a turning penalty measure, the number of turning points in the planned path is reduced to avoid unnecessary turns. Therefore, the present application can not only ensure the accuracy of path planning in complex scenarios, but also realize the flexible setting of the mobile cost, improve the search efficiency, reduce the number of turns, and meet the requirements of high-quality path planning of robots.

This utility model discloses a multi-axis automatic positioning mechanism for an electro-hydraulic bending machine, belonging to the technical field of bending machines. The multi-axis automatic positioning mechanism for an electro-hydraulic bending machine includes a base, a limiting mechanism on the base for positioning the sheet metal, a fixed seat fixed to the top of the base, two bearing seats mounted on the fixed seat, a drive shaft rotatably connected between the two bearing seats, two connecting seats fixed to the outside of the drive shaft, a flipping plate fixed to the connecting seats, a rubber pad connected to the top of the flipping plate, a drive mechanism on the fixed seat for driving the drive shaft to rotate, and a buffer assembly on the base. This utility model solves the problem that existing automatic positioning mechanisms for bending machines cannot dynamically support the sheet metal. By setting a flipping support structure, this utility model provides real-time support to the bottom of the sheet metal during bending, effectively preventing sagging, displacement, or deformation of the sheet metal due to its own weight or uneven force.

The invention relates to a spacer knit, comprising two knit layers (1) and spacer yarns (2) connecting the knit layers (1), the knit layers (1) having loops following one another in the production direction (P), the loops having an average loop spacing of a, the knit layers (1) having openings (3) which extend in the production direction (P) by a length l, the length l being greater than 2*a, and the openings (3) of the two knit layers (1) being arranged substantially overlapping one another and forming opening pairs (4) accordingly. At least at some of the opening pairs (4), at least one pair (5) of crossing spacer yarn sections (6) is arranged respectively, which extend in the transverse direction (Q) of the openings (3), wherein at these opening pairs (4) the number of pairs (5) of crossing spacer yarn sections (6) is less than l / 2a.

The utility model discloses a pumpkin seed processing screening device with an angle convenient to adjust, and relates to the technical field of screening devices. The device comprises a rectangular bottom plate, wherein an adjusting mechanism and a self-locking mechanism are arranged on the rectangular bottom plate; two rectangular supporting plates are arranged above the rectangular bottom plate, two screening plates are arranged between the two rectangular supporting plates in a hinged mode, two second rectangular supporting plates are fixedly connected to the sides, away from each other, of the two rectangular supporting plates correspondingly, and first springs are fixedly connected to the bottoms of the multiple second rectangular supporting plates correspondingly. The bottoms of the first springs are fixedly connected with the rectangular bottom plate. According to the pumpkin seed processing screening device, the adjusting mechanism is arranged, so that the problem that in the using process of an existing pumpkin seed processing screening device convenient to adjust the angle, the angles of a plurality of filter screens are inconvenient to adjust at the same time, so that more time needs to be spent to find the optimal working angle of each filter screen, and the production period is prolonged is solved.

The embodiment of the invention provides a display module and a preparation method thereof, a display device and a tiled display device, relates to the technical field of display, and is used for improving the display stability of the display device. The substrate comprises a first surface and a second surface which are opposite to each other, and a plurality of side surfaces connected between the first surface and the second surface, and at least one of the plurality of side surfaces is a selected side surface; the driving circuit layer is arranged on the first surface; the binding pattern is arranged on the second surface; the circuit board is arranged on the second surface; the circuit board comprises a third surface and a fourth surface which are oppositely arranged; the circuit board further comprises a binding terminal arranged on the third surface and a plurality of conductive terminals arranged on the fourth surface, and the binding terminal is connected with the binding pattern; the connecting wire extends from the first surface to the second surface through the selected side surface; the plurality of connecting wires are arranged corresponding to the plurality of conductive terminals, one end of each connecting wire is electrically connected with the corresponding conductive terminal, and the other end of each connecting wire is electrically connected with the driving circuit layer. The display module is used for displaying images.

The utility model discloses a transformer coil winding mechanism relates to transformer coil winding field, the utility model discloses a coil main body, both ends of coil main body all are provided with the pivot, the lower portion of pivot is provided with the guide rod, the one end of guide rod is provided with the abutment ring, the utility model discloses a guide rod, because the guide rod is in the inclined state, the pivot will along its downward rolling, and when reaching certain position is limited by the limiting block, at this moment, the operator can carry out careful check to transformer coil, after checking, the staff only needs to push the pivot simply, makes it continue to slide down along the guide rod through the limiting block, until the position of abutment ring, avoided the cumbersome that traditional winding mechanism needs to use hoisting mechanism to carry in the transportation process, reduced the binding, the hook and the control hoisting angle etc. Step, the working efficiency has been improved significantly, and the use convenience of transformer coil winding mechanism has been enhanced.

The utility model provides a rice cleaning machine for rice production, which belongs to the technical field of cleaning machines and comprises a water tank, pin shafts are rotatably arranged on the left side and the right side in the water tank through bearings, a cleaning cylinder is fixedly arranged between the two pin shafts, water leakage holes are formed in the inner side surface of the cleaning cylinder in a penetrating manner, and a drainage valve is arranged at the left end of the outer side surface of the water tank in a penetrating manner. The left end pin shaft penetrates through the left side surface of the water tank, a gear is fixedly arranged on the left end pin shaft, and a gear transmission assembly is fixedly arranged on the left side surface of the water tank; when the rice washing machine is used for washing rice, the rice is put into the washing barrel from the opening in the upper portion of the washing barrel, then water is added into the water tank, the water enters the washing barrel through the water leakage holes, the water submerges the rice in the washing barrel, and the rice swings left and right in the water tank along the water tank through the pin shaft through the washing barrel. And the rice in the cleaning barrel swings back and forth in the cleaning barrel, the effect of cleaning the rice is achieved, it is guaranteed that the rice makes full contact with water, and the cleaning effect is guaranteed.

The utility model provides an explosion-proof valve battery core shell and a battery, which belong to the technical field of batteries, and comprise a shell which is arranged in a frame-shaped structure, an explosion-proof valve mounting hole is arranged on the side surface of the shell, a reinforcing part which is integrally arranged with the side surface of the explosion-proof valve mounting hole is arranged along the edge of the explosion-proof valve mounting hole, and the explosion-proof valve mounting hole is arranged in the shell. The inner side surface of the reinforcing part is arranged in a step shape; and the anti-explosion valve is embedded in the anti-explosion valve mounting hole, and the anti-explosion valve is connected with the shell in a welding mode. According to the utility model, the reinforcing part is arranged at the edge of the explosion-proof valve mounting hole, so that the strength of the explosion-proof valve mounting area is improved, the thickness of the side surface on which the explosion-proof valve is positioned does not need to be integrally increased, and the processing difficulty and the material cost of the whole battery cell shell are reduced.

The present invention belongs to the field of data processing and automatic control technology, and proposes an adaptive flip control method and system for an incubator, which is specifically as follows: firstly, an egg tray is identified in the incubator, and each egg tray is marked as a flip position, and an air source sensor and a flip sensor are arranged at the flip position, and the relative flip amount and air source pressure are read in real time, and then a flip derivation model is constructed through the relative flip amount and air source pressure to obtain the flip failure risk, and finally the flip machine flow valve is adaptively controlled according to the flip failure risk. The adaptability of each flip position in the incubator rack and the current incubation flip action configuration of the incubator rack is effectively quantified, so as to reflect the difference accumulation problem of the actual flip effect, reduce the risk of the flip angle of the incubator egg being too large or too small, avoid the internal damage of the incubator egg, and greatly improve the incubation quality and energy utilization rate of the incubator.

The present invention discloses an intelligent material feeding device for an unwinding and leveling machine, comprising a base, the base having a clamping base, and a fixed clamping frame installed on the outer walls on both sides of the base, a grab frame fixedly connected to the top of the base, and a conveyor belt fixedly connected to the bottom of the inner walls on both sides of the grab frame; a feeding roller, the feeding roller having a rotating motor, and mounting plates arranged at both ends of the feeding roller and adapted to the grab frame, the mounting plates extending to the outside of the grab frame, and the bottom of the mounting plates installed on the base, the present invention relates to the technical field of unwinding and leveling machines. The intelligent material feeding device for an unwinding and leveling machine makes it difficult to affect the movement of the raw material when a gap appears between the raw material and the conveyor belt, thereby improving the overall processing efficiency of the device, the collection box is slidably connected to the base, so that the collection box can clean the collected impurities after the processing is completed, thereby increasing the bearing capacity of the collection device, thereby improving the overall processing efficiency of the device.

The utility model discloses production equipment for an electronic-grade polycrystalline silicon packaging protective film, belongs to the technical field of film processing, and aims to solve the technical problems that the angles among multiple layers of raw material films are too large before the protective film is compounded, the preheating of the multiple layers of raw material films is not facilitated, and the compounding effect is reduced in the prior art. The production equipment of the electronic-grade polycrystalline silicon packaging protective film comprises a fixed shell, the raw material film rollers are arranged at one end in the fixed shell; the number of the raw material film rollers is at least two; the finished product film roller is arranged at one end, far away from the raw material film roller, in the fixed shell; the positioning pressing roller and the movable pressing roller are arranged at the position, close to the finished product film roller, in the fixed shell, and a driving mechanism used for driving the movable pressing roller to be close to the positioning pressing roller is arranged on the fixed shell; the guide rollers are arranged in the fixed shell and close to the raw material film roller; and a pair of guide rollers are arranged. The production equipment for the electronic-grade polycrystalline silicon packaging protective film has a relatively high pressing effect and is high in adaptability.

A heterodyne interferometer device and method based on wavefront regulation target mirror belong to laser interferometer measurement technical field, the present application solves the problem of insufficient system interference keeping ability under the condition of large angle deflection of target mirror. The device comprises a heterodyne interference mirror group and a wavefront regulation target mirror, the heterodyne interference mirror group separates a bundle of input light beams into a first measurement light beam and a first reference light beam, and separates another bundle of input light beams into a second measurement light beam and a second reference light beam, the wavefront regulation target mirror is installed on the measured object, and the second measurement light beam is reflected to form a return measurement light beam and returns to the heterodyne interference mirror group, when the measured object occurs angle deflection such as pitching or yawing in the movement process, the wavefront regulation target mirror deflects synchronously with the measured object, the return measurement light beam is parallel to the second measurement light beam, the change of the return measurement light beam caused by large angle deflection of the wavefront regulation target mirror is more manifested as the position translation of the optical axis, thereby weakening the angle mismatch and wavefront mismatch.

The utility model relates to the technical field of frame support, concretely is the light weight anticollision support subassembly of frame assembly, including the support beam of installing in the side surface of longitudinal beam, and the both ends of longitudinal beam are connected with the crossbeam for fixing longitudinal beam, the outer surface of support beam is equipped with through -hole, the upper surface of support beam is equipped with guide slot, in the utility model, the plug -in column is inserted with the side surface of longitudinal beam, ensures that support beam can be connected to the longitudinal beam quickly and firmly, through this mode, the assembly personnel can complete the installation of support beam in short time, lay the foundation for the subsequent fastening work, the guide rod penetrates support beam, plays the guiding role in the installation process, ensures that support beam can move to the predetermined position, through the electric wrench screwing screw column, can adjust the interval between extruding seat and support beam, makes the angle between articulated rod and support beam reduce, namely can make the plug -in column of socket outward slide and complete, complete the quick -mounting of device.

The invention relates to the technical field of etching solutions, in particular to a low-angle aluminum etching solution composition which comprises the following components in percentage by mass: phosphoric acid, nitric acid, acetic acid, 6-nitrourea pyrimidine, 3-amino-1, 2, 4-triazole and the balance of deionized water. According to the method, nitric acid is used for oxidation, phosphoric acid is used for etching, acetic acid is used for adjusting the pH value of etching liquid, 6-nitrourea pyrimidine and 3-amino-1, 2, 4-triazole are jointly matched to reduce aluminum etching, the etching speed of Al is reduced while the etching speed of a Mo layer is slightly high through combination with Al, the angle is controlled by controlling the etching speed of Mo and Al, and the etching speed of Mo and Al is greatly improved while the Al is effectively etched. The Al angle is reduced as much as possible, and the method has important significance in improving the fineness and the product yield of a panel manufacturing process.

The utility model discloses a sheet metal part positioning bending device, including device main part, setting on the bending assembly and positioning assembly of device main part, the bending assembly includes the bending groove and with the lower pressure mechanism of bending groove correspondence, and the positioning assembly includes the positioning baffle and support plate respectively setting in the both sides of bending groove, and the end surface of support plate is flush with the end surface of bending groove, and the both sides of support plate are provided with two sets of positioning shafts, and the positioning shaft is swing setting. The positioning baffle in scheme ensures the sheet metal part end positioning precision, avoids the sheet metal part along the length direction deviation when bending. The support plate is flush with the end surface of bending groove, eliminates the height difference of both junctions, prevents the partial deformation or surface indentation of sheet metal part after placing. The swing setting positioning shaft replaces the traditional manual holding positioning mode, reduces the safety risk of the hand of operating personnel being injured by the lower pressure mechanism, can continuously limit the top surface of sheet metal part, reduces the bending position deviation and angle fluctuation, and improves the bending precision.

This utility model discloses a light source module, comprising: a light-emitting unit, which includes four LEDs arranged in two columns along a first direction and in two rows along a second direction perpendicular to the first direction; the four chips in each LED emit different colors; for two adjacent LEDs in the first direction, the two adjacent chips in the first direction emit different colors; for two adjacent LEDs in the second direction, the two adjacent chips in the second direction emit different colors; and a lens, which includes an incident end, with LEDs disposed at the incident end. The light-emitting unit of this utility model can achieve a light-emitting surface with four colors evenly distributed; and the lens concentrates the light emitted by the LEDs into a smaller angle beam, while the light spots formed by the light-emitting units overlap, thereby obtaining a high-brightness light spot with uniform color.

The invention relates to the technical field of laser welding and discloses laser welding equipment and a welding technology.The laser welding equipment comprises a supporting base, a supporting positioning mechanism is connected to the top end of the supporting base, an auxiliary positioning mechanism and an auxiliary butt joint mechanism are connected to one end of the top of the supporting positioning mechanism, and the auxiliary positioning mechanism comprises two supporting positioning frames; according to the auxiliary positioning mechanism, through the positioning lead screw, the movable base, the clamping frame and other assemblies in the auxiliary positioning mechanism, precise positioning and stable clamping of a strip-shaped workpiece are achieved, the precision problem of manual butt joint is avoided, the working efficiency is improved, and the working efficiency is improved. The butt joint precision of the workpieces before welding is obviously improved; a driving wheel and an anti-skid ring in the auxiliary butt joint mechanism are used for driving the strip-shaped workpieces to move slowly, stable butt joint of the two strip-shaped workpieces is achieved, position deviation and angle deviation are reduced, and guarantee is provided for high-quality welding; and the long-strip-shaped workpiece is stably controlled during laser welding.

The present application relates to the technical field of charging and replacing cabinets, in particular to an electric vehicle charging and replacing cabinet with multiple battery compartments, which comprises a charging and replacing cabinet shell, a heat dissipation channel is arranged in the vertical direction inside the charging and replacing cabinet shell, and L-shaped shunt channels are symmetrically arranged inside the charging and replacing cabinet shell, and the heat dissipation channel is in communication with the bottom of the L-shaped shunt channels. The double air duct structure of the heat dissipation channel and the L-shaped shunt channels can flexibly adjust the operating state according to the season: in high temperature, the air flow efficiency can be improved by reducing the angle of the drainage plate and increasing the area of the external air outlet to quickly lead out the heat of the dense batteries in the multiple charging compartments; in low temperature, the air can be preheated and dehumidified by the electric heater of the preheating assembly and the multi-tooth plate of the moisture-absorbing resin, and the action of increasing the angle of the drainage plate and reducing the area of the external air outlet of the adjusting assembly can lead the residual heat in the heat dissipation channel into the charging compartment, which can maintain the activity of the uncharged batteries and avoid local overheating of the charging components.

The utility model provides a kind of construction engineering protective screen, it is related to protective screen technical field, the utility model includes protective screen body, protective screen body is installed and fixed on ground by connecting column and provides protection for personnel, wherein protective screen body is combined by first protective screen and second protective screen;Adjusting component, wherein adjusting component is arranged between first protective screen and second protective screen, the length and size of protective screen body are adjusted by changing the spacing between first protective screen and second protective screen, the length and angle of protective screen body can be flexibly changed by setting adjusting component, so that protective screen body can be adapted to a variety of ground and scene use, reduce the length of protective screen body after installation or angle is not adapted, cause the gap between protective screen body and building or another protective screen body, so that gap area is not protected, affect the situation of the effect of personnel protection, improve the installation flexibility and use convenience of protective screen body.

The utility model provides efficient Chinese wolfberry impurity screening and separating equipment, and relates to the technical field of Chinese wolfberry separating equipment, the efficient Chinese wolfberry impurity screening and separating equipment comprises a screening box, the lower end face of the screening box is fixedly provided with four walking wheels, the right side of the upper end face of the screening box is provided with a feeding port, and the lower portion of a left side plate of the screening box is provided with a discharging plate. Firstly, an air suction pipe on the surface of a partition plate is externally connected with a fan, the air suction range is enlarged through an umbrella-shaped structure at the lower end of the air suction pipe, light impurities such as leaves are sucked out of a screening box, and meanwhile, a filter plate achieves separation of the Chinese wolfberry and small impurities through filter holes in the surface of the filter plate; the problems that existing screening equipment still has defects in the screening effect, the speed of the Chinese wolfberries entering a screening box cannot be controlled, and if the Chinese wolfberries contain many impurities and the speed of the Chinese wolfberries entering the screening box is high, the impurities in the Chinese wolfberries cannot be cleaned up are solved.

The present invention relates to a heat dissipation power distribution system, and relates to the technical field of power distribution systems, including a power distribution room, a plurality of power distribution cabinets arranged in the power distribution room, and a heat dissipation duct, one end of the heat dissipation duct extends out of the power distribution room, and a heat dissipation fan for discharging hot air out of the power distribution room is arranged on the heat dissipation duct; the heat dissipation duct is connected with a plurality of vertically arranged branch pipes, and one end of the branch pipe away from the heat dissipation duct is connected with the heat dissipation hole of the power distribution cabinet; an inclined air guide plate is arranged at one end of the branch pipe close to the heat dissipation duct, one end of the air guide plate extends into the heat dissipation duct, and the air guide plate is inclined toward the gas flow direction in the heat dissipation duct. The hot air generated by the power distribution cabinet does not need to be directly heat exchanged with the air in the power distribution room through the heat dissipation duct, thereby reducing the power required for cooling the power distribution room.