187results about How to "Reduce the angle" patented technology

A leakage-proof vibration harvester comprises a crawler-type walking mechanism, a fruit output mechanism, a chassis which is installed at the front end of the fruit output mechanism and provided with a U-shaped opening, and a clamping jaw vibration assembly which can clamp a tree trunk and vibrate, and the clamping jaw vibration assembly is hung on a machine frame, extending forwards, of the fruit output mechanism through a spring. The left half umbrella assembly is installed on the left side of the chassis and is in seamless connection with the left side of the fruit output mechanism, the right half umbrella assembly is installed on the right side of the chassis and is in seamless connection with the right side of the fruit output mechanism, and after the right half umbrella assembly and the left half umbrella assembly are opened, the ends of the right half umbrella assembly and the left half umbrella assembly intersect to form a closed collecting umbrella; the base plate closes the U-shaped opening to surround the trunk along with opening of the right half umbrella assembly and the left half umbrella assembly, or opens the U-shaped opening along with folding of the right half umbrella assembly and the left half umbrella assembly. The fruit collecting efficiency is improved, the harvesting efficiency is improved, and damage to trunks is reduced. The invention further provides a harvesting method of the leakage-proof vibration harvester.

The utility model discloses a cross-flow air duct structure and a cabinet type air conditioner indoor unit in the technical field of air conditioner products. The portions, where airflow passes through, of the two sides of the rear volute structure are segmentation flow guide structures, the front ends of the segmentation flow guide structures are fluctuant, the flow guide plates are arranged on the sides, away from the cross-flow fan, of the segmentation flow guide structures, and gaps exist between the front ends and the rear ends of the flow guide plates and the segmentation flow guide structures so that air can flow through the rear ends of the segmentation flow guide structures to move towards the front ends. The size of a gap between the front end of the flow guide plate and the dividing flow guide structure is larger than or equal to 1.5 mm, and the size of a gap between the rear end of the flow guide plate and the dividing flow guide structure is larger than or equal to the size of a gap between the front end of the flow guide plate and the dividing flow guide structure. The flow guide plate is additionally arranged, so that an air flow direction is added to the front end of the division flow guide structure, the air flow direction is forward along the division flow guide structure, the state of the air flow directly entering the cross-flow fan can be changed, the state energy of the air flow entering the cross-flow fan is dispersed, the impact on the cross-flow fan is reduced, and then the noise is reduced.

The invention discloses an optical lens and electronic equipment. The optical lens sequentially comprises a first lens with negative focal power, a second lens with negative focal power, a third lens with negative focal power, a fourth lens with positive focal power, a fifth lens with focal power and a sixth lens with focal power from a first side to a second side along an optical axis. The first side surface of the fourth lens is a convex surface, the first side surfaces of the fifth lens and the sixth lens are convex surfaces, and the second side surfaces are concave surfaces. The first lens, the second lens and the third lens are all meniscus lenses; the optical lens satisfies the following conditions: 0.15 < = R12 / TTL < = 0.3 and-0.6 < = (1 / F1 + 1 / F2 + 1 / F3) / (1 / F) < =-0.1, where R12 is the radius of curvature of the second side surface of the sixth lens, TTL is the distance from the center of the first side surface of the first lens to the imaging surface of the optical lens on the optical axis, F1 is the effective focal length of the first lens, F2 is the effective focal length of the second lens, F3 is the effective focal length of the third lens, and F is the effective focal length of the optical lens.

The invention provides a shifting assembly, an endoscope handle and an endoscope, and relates to the technical field of endoscopes, the shifting assembly comprises a shifting rod, the shifting rod comprises a swing part and an operation part which are connected with each other, the swing part is used for being connected with a transmission part to control a traction rope, and the connecting position between the swing part and the transmission part is a connecting node; a moving stroke is formed between the operating part and the connecting node; the guide part is provided with a first preset path, and the guide part is used for adjusting the distance between the operation part and the connecting node so that the operation part can move along a second preset path. Compared with the prior art, the endoscope driving lever has the advantages that the operation comfort of the endoscope driving lever is improved, and meanwhile, the hand fatigue during long-time operation is reduced.

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 cross-flow air duct structure and a cabinet type air conditioner indoor unit in the technical field of air conditioner products. The portions, where airflow passes through, of the two sides of the rear volute structure are segmentation flow guide structures, the front ends of the segmentation flow guide structures are kept unchanged along the axis of the cross-flow fan, the flow guide plates are arranged on the sides, away from the cross-flow fan, of the segmentation flow guide structures, and gaps exist between the front ends and the rear ends of the flow guide plates and the segmentation flow guide structures. The size of a gap between the front end of the flow guide plate and the segmentation flow guide structure is larger than or equal to 1.5 mm, and the size of a gap between the rear end of the flow guide plate and the segmentation flow guide structure is larger than or equal to the size of a gap between the front end of the flow guide plate and the segmentation flow guide structure. The flow guide plate enables an airflow direction to be added at the front end of the division flow guide structure, the airflow direction is forward along the division flow guide structure, the state of the airflow directly entering the cross-flow fan can be changed, the state energy of the airflow entering the cross-flow fan is dispersed, impact on the cross-flow fan is small, and then noise is reduced.

The invention discloses an optical lens, a camera module and terminal equipment, the optical lens comprises six lenses with refractive power, the first lens has positive refractive power, and the object side surface and the image side surface of the first lens are respectively a convex surface and a concave surface; the second lens has negative refractive power, and the object side surface and the image side surface of the second lens are concave surfaces; the object side surface and the image side surface of the third lens are respectively a concave surface and a convex surface; the fourth lens has positive refractive power, and the object side surface and the image side surface of the fourth lens are convex surfaces; the fifth lens has positive refractive power, and the object side surface of the fifth lens is a convex surface; the sixth lens has negative refractive power, and the object side surface and the image side surface of the sixth lens are concave surfaces; the optical lens satisfies the following relational expressions: 15 default; hFOVlt, HFOVt; 20deg, FNOlt, 20deg, FNOlt; 2.1. According to the optical lens, the camera module and the terminal equipment, the miniaturization design requirement can be met, and meanwhile the optical lens has the good imaging quality.

The embodiment of the invention discloses a braking method, device and equipment of a heavy-load truck, a medium and a vehicle, and the method comprises the steps that according to the current motion state of the current heavy-load truck and the distance between the current heavy-load truck and a collision risk object, the expected speed of the current heavy-load truck is estimated; at each moment in the lane changing process, the inner side maximum braking force of inner side wheels of the semitrailer and the outer side maximum braking force of outer side wheels of the semitrailer are determined according to the current motion state and the dynamic model of the current heavy-load truck; according to the magnitude relation among the inner side maximum braking force, the outer side maximum braking force and expected braking force corresponding to the expected speed, the first target braking force of the inner side wheel and the second target braking force of the outer side wheel at the next moment are determined; and the inner side wheels and the outer side wheels are controlled to decelerate at the next moment according to the first target braking force and the second target braking force correspondingly. By the adoption of the technical scheme, the safety of the heavy-duty truck during emergency lane changing can be improved.

The utility model discloses a rhododendron lapponicum seedling cultivation device, and mainly relates to the technical field of seedling cultivation. Comprising a seedling raising plate detachably arranged on a first bottom plate, a plurality of seedling raising cups are arranged on the seedling raising plate, a water storage chamber is formed among the first bottom plate, a second bottom plate and a seedling raising box, and a plurality of filter plates used in cooperation with the water storage chamber are arranged on the seedling raising cups; a plurality of atomizing nozzles used in cooperation with the seedling raising cups and spraying pipes communicated with the atomizing nozzles are arranged on the seedling raising box, a cover plate is arranged at the top of the seedling raising box, a shading plate is rotationally connected to the cover plate, and a drainage pipe communicated with the water storage cavity is arranged at the bottom of the seedling raising box. The Rhododendron lapponicum seedling raising device has the advantages that the problems that artificial seedling raising seeds are prone to loss, and seedlings are uneven and grow in a piled mode are solved, and the effect of planting Rhododendron lapponicum seedlings in batches is improved.

The utility model particularly relates to a novel automobile anti-roll bar damper which can effectively reduce side roll when an automobile turns and improve the linear driving quality. The damper comprises a damping spring, a left end fixing hoop and a right end fixing hoop, and dynamic damping is adjusted through stretching out and drawing back. The damper is directly connected with a chassis anti-roll bar through the damping spring and one end of the fixing hoop, the other end of the damper is directly connected with an anti-roll bar suspender or connected with a lower straight arm or a lower bent arm or a nearby fixing point, and the angle change and vibration of the anti-roll bar are reduced when a vehicle moves by reinforcing the connection damping of the anti-roll bar and the anti-roll bar suspender or the lower swing arm; the stability of the anti-roll rod during movement is improved on the whole, the purpose of reducing side roll of the vehicle during turning is achieved, and meanwhile the comfort of the vehicle during straight driving is improved.

The invention belongs to the technical field of medical instruments, and particularly relates to an endoscope and a traction mechanism and an operation handle thereof. The traction mechanism is used for pulling a traction rope and comprises a traction wheel, a fixing seat and a winding piece, the traction wheel can rotate relative to the fixing seat, the fixing seat is used for being connected with the near end of the traction rope, and the winding piece is used for winding the traction rope; the traction wheel is connected with the winding piece, and the winding piece can move in the direction close to or away from the fixing base along with rotation of the traction wheel so as to adjust the tension degree of the traction rope. The winding piece can further move in the direction close to or away from the rotating axis of the traction wheel relative to the traction wheel. When the traction mechanism is used, under the same rotation angle, the tension degree change of the traction rope is larger, so that the active bending section and other target parts rapidly reach the target position, that is, the rotation angle of the traction wheel when the target parts reach the target position can be reduced, and then finger fatigue of a surgeon and a doctor is relieved.

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 utility model belongs to the technical field of yarn guide needles, and particularly relates to a yarn guide needle with high tensile strength, which comprises a base and further comprises a moving groove fixedly arranged at the top end in the base, a rubber gasket fixedly arranged on the inner wall of the moving groove, a clamping seat arranged on one side of the moving groove in a penetrating manner, clamping grooves arranged on the surface of the clamping seat at equal intervals, and a clamping groove arranged on the other side of the clamping seat. Clamping blocks are installed on the surfaces of the clamping grooves in a penetrating mode, threaded rods are fixedly installed on the tops of the clamping blocks, the tops of the threaded rods are sleeved with outer cylinders, yarn is guided through the needle body, then the angle of guiding the yarn is reduced through a notch, and then the pressure of the yarn on the needle body is reduced through a buffer layer; the toughness of the needle body is improved through the tensile layer, so that the needle body has the anti-pressure capability, the corrosion of heat generated by friction between yarns and the needle body to the needle body is reduced through the high-temperature-resistant layer, and the wear of the yarns to the needle body is reduced through the wear-resistant sleeve, so that the service life of the needle body is prolonged.

The invention discloses a display device. The display device comprises a liquid crystal display panel; the backlight assembly is located on the non-display side of the liquid crystal display panel and provides backlight for the liquid crystal display panel, the backlight assembly comprises a first backlight assembly, the first backlight assembly comprises at least one first light guide type light guide film assembly, and emergent light of the first backlight assembly has a first beam angle; wherein the angle of the emergent light of the first light guide type light guide film assembly can be realized by controlling the shape and the angle of a light feature extract in the first light guide type light guide film and / or the refractive index difference between different light guide film layers, so that the angle of a first beam angle can be relatively small; for example, emergent light of the first backlight assembly is collimated light, so that the display device can be applied to a privacy display scene, a collimating lens and a light absorption layer do not need to be introduced, and the display device is simple in structure, small in thickness, low in power consumption and high in yield.

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 relates to the technical field of boring machines, in particular to a floor type boring machine with a protection structure. Comprising a machine tool, a lifting table is slidably arranged on the machine tool, a protective cover is fixedly connected to the lifting table, a vertical plate is fixedly connected to the lifting table, an air cylinder is fixedly connected to the vertical plate, a first guide column is fixedly connected to the lifting table, a cooling box is fixedly connected to the telescopic end of the air cylinder, and a machining motor is fixedly connected to the cooling box; the output end of the machining motor is fixedly connected with a rotating shaft, a heat dissipation structure is arranged in the cooling box, and a cleaning structure is arranged on the machine tool. A cooling fan is started to drive air flow to enter a cooling box through a dustproof net, a rotating plate rotates, the air flow flows out of an adjusting groove, the size of the adjusting groove is adjusted, and therefore the flowing speed of the air flow is increased, heat accumulated between a rotating shaft and a machining motor is reduced, and damage caused by too high temperature is reduced; and therefore, the use safety of the device is improved.

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 utility model belongs to the technical field of experimental equipment, and provides an adjustable connecting device for connecting a Suma tank and an automatic sampler, which comprises a sleeving seat, the sleeving seat is provided with an opening which is communicated up and down, and the front and rear side walls of the sleeving seat are provided with sleeving through holes; the plate sleeve is arranged on at least one of the left side and the right side of the sleeving seat and fixedly connected with the sleeving seat, and a longitudinal through groove is formed in the plate sleeve; the clamping top plate is movably arranged in the longitudinal through groove in a penetrating mode, and clamping top grooves are formed in the two ends of the clamping top plate. The adjustable connecting device for connecting the Suma tank and the automatic sample injector is simple in structure, convenient and fast to use and capable of being matched with the Suma tanks of various different sizes and specifications so that the Suma tank can be stably and reliably fixed to the automatic sample injector, the position of the Suma tank can be changed by moving the clamping top plate up and down, and the automatic sample injector is convenient to use. Therefore, the sample inlet of the Suma tank and the interface of the automatic sample injector are close to each other and are butted, so that large dislocation of the two is avoided, and the connection difficulty is reduced.