318results about How to "Less consumables" patented technology

The invention provides a K-band broadband dual circularly polarized antenna applied to the satellite internet, and belongs to the field of circularly polarized antennae, the K-band broadband dual circularly polarized antenna comprises a radiation unit, a first dielectric layer, a metal ground layer, a bonding layer, a second dielectric layer and a feed network which are stacked from top to bottom, the radiation unit comprises two first radiation patches and two second radiation patches, the first radiation patch is provided with two long rectangular grooves which are vertically intersected, the second radiation patch is provided with two short rectangular grooves which are vertically not intersected, the first radiation patch and the second radiation patch are respectively connected to the metal ground layer through metal columns, and the metal ground layer is provided with a first coupling gap and a second coupling gap. A first rectangular groove, a second rectangular groove, a third rectangular groove and a fourth rectangular groove are formed in the metal ground layer, and the feeder network comprises a first microstrip feeder and a second microstrip feeder; the antenna structure is low in profile, wide impedance bandwidth can be achieved, and the two feed ports can work in the same frequency range.

The invention relates to the technical field of hygienic products, in particular to a manufacturing method of a fine-denier rubber string waistline elastic body component and the waistline elastic body component. The manufacturing method of the fine-denier rubber string waistline elastic body component comprises the steps that 180-260 70-280 denier rubber strings are conveyed at the stretching ratio of 2.0-2.5, and when the rubber strings are conveyed to a laying procedure, the elastic strings are arranged at the stretching ratio of 2.0-2.5; the lower-layer non-woven fabric is laid with the stretching ratio of 2.5-3.0, then glue is sprayed to the rubber band, and the rubber band and the upper-layer non-woven fabric are compounded and bonded to obtain the waistline elastic body component. The invention aims to overcome the defect that the manufacturing cost is increased due to high defective product rate in the production process caused by high possibility of breakage of the thin rubber band in waistline layout in the prior art, and provides the manufacturing method of the fine denier rubber band waistline elastomer component and the waistline elastomer component, so that the occurrence of breakage of the thin rubber band in the production process can be reduced, and the manufacturing cost is reduced.

The invention discloses a multistage fine-adjustable modular coaxial capillary micro-fluidic chip and an emulsion preparation method, and belongs to the technical field of micro-fluidic chips. The chip comprises a focusing capillary tube, a collecting capillary tube, a square capillary tube, a sliding rail base module, a feeding module and a liquid inlet platform module. Focusing capillary tubes are inserted into the first and second side connectors of the liquid inlet platform, square capillary tubes are inserted into the second and third side connectors of the liquid inlet platform, and a collecting capillary tube is inserted into the right connector of the third liquid inlet platform; and the focusing capillary tube and the collecting capillary tube jointly extend into the square capillary tube. The whole forms a single-stage chip module, and a plurality of single-stage modules are connected in series through a rubber hose to form a multi-stage chip which is used for preparing complex micro-droplets and the like. The device adopts a split type modular structural design, and has the advantages that the assembly is convenient, the standardization can be realized, and the preparation efficiency of complex micro-droplets is improved. And the precise 3D printing technology is combined, mold opening is not needed, flexible machining of parts is achieved, and cost is reduced.

The invention provides a razor head with a 360-degree follow-up razor net and a shaver, the razor head with the 360-degree follow-up razor net comprises a combined razor net, the combined razor net is formed by connecting and assembling three or more razor nets, each razor net can float or tilt after being stressed, and the razor net on the inner side can float or tilt after being stressed along with the razor net on the adjacent outer side. According to the shaver, the shaver nets can float independently, can also float in a linkage mode, can flexibly rotate in all directions, can be tightly attached to the facial contours including the cheeks, the jaw, the neck and other parts, can easily adapt to different facial contours without moving the shaver body in a large range during shaving, and effectively improves the attaching degree and comfort degree of shaving.

The invention discloses a wound healing degree evaluation method and system based on multiple models, and relates to the technical field of medical treatment. According to the method, the wound edge, the wound color, the wound type and the outer layer dressing color of the patient are combined, the multiple neural network models are used for comprehensively detecting the wound, intelligent detection of the wound of the patient is achieved, medical staff are assisted in treatment management of the wound of the patient, the burden of the medical staff is relieved, and the infection risk of the wound of the patient is reduced.

The utility model discloses a multifunctional drainage tube joint protective sleeve in the field of drainage tube joint protective sleeves, which comprises a protective sleeve cap, a thread is arranged at the bottom of the inner wall of the protective sleeve cap, a connecting tube is arranged at the bottom of the left side of the protective sleeve cap, and a sealing rubber ring is arranged on one side, far away from the protective sleeve cap, of the connecting tube. A drainage tube is arranged in an inner cavity of the rubber ring in a sleeved mode. According to the utility model, the thread arranged on the inner wall of the protective sleeve cap is fixed with the top thread of the drainage tube, so that the protective sleeve cap and the drainage tube are tightly connected and are not easy to loosen, and the sealing rubber ring is sleeved on the surface of the drainage tube, so that the protective sleeve cap is prevented from falling off due to accidental touch; the drainage tube is bent and then placed in the protective sleeve cap, so that the drainage tube is closed and can be used as a drainage tube clamp, pressure injury to the skin of a patient is avoided, material consumption is reduced, and cost is lowered.

The present invention discloses a method for preparing kiwifruit root tissue nuclei suitable for single-cell sequencing. The nuclei are prepared with high quality through an original lysate formula and a nucleus suspension optimization method. Compared with the lysate formula of 6 to 7 components in the prior art, the lysate formula of the present invention is significantly reduced; the experimental process can complete the preparation of nuclei within 30 minutes. The method of the present invention avoids steps such as sucrose deposition, saves reagents and consumables, reduces costs, and greatly shortens time, improves efficiency, and facilitates the development of experiments with a large number of samples. The present invention also discloses a KR lysate, a reagent / kit, and its use in a method for preparing kiwifruit root tissue nuclei suitable for single-cell sequencing.

The present invention discloses a roller-type high-pressure injector, which relates to a high-pressure injector and solves the technical problems that the injection method using an electric pusher has many consumables, high equipment costs, and is easy to affect the stability of the injection. It includes a shell and a base; a support plate is installed on one side of the shell, and a plurality of medicine bottle fixing seats are installed above the support plate, and a switch structure with the same number as the medicine bottle fixing seats is provided below the medicine bottle fixing seats; an extrusion roller is provided below the switch structure, and an extrusion plate is slidably installed on the support plate below the extrusion roller, and a locking mechanism is provided below the extrusion plate, and a positioning protection mechanism is provided on the outside of the locking mechanism. The present invention is simple to operate, safe and reliable, greatly reduces consumables and costs, and also avoids the problem of large vibrations to which the high-pressure injector is subjected when the injection is pushed by an electric injection syringe.

The invention provides a shaver head with a modular combined floating knife net and a shaver, the shaver head with the modular combined floating knife net comprises the modular combined knife net, the modular combined knife net is formed by connecting and assembling a plurality of mesh modules and a plurality of functional modules, each mesh module and each functional module can float or tilt under stress, and the modular combined knife net is arranged on the modular combined knife net. The mesh modules or function modules on the inner side can float or tilt along with the adjacent mesh modules or function modules on the outer side after being stressed, and each mesh module is provided with a movable cutter set. According to the modular design, mesh modules with different thicknesses and different groove types are formed, and functional modules with different functions can also be combined, such as an antibacterial module, a heating module, a cleaning module, a skin detection module and an odor module. Combination is carried out according to requirements, the requirements of different customers are met, the product development frequency and time can be reduced, the production efficiency is improved, and the cost is reduced.

The invention belongs to the technical field of navel orange planting, and particularly relates to weeding equipment for navel orange planting, which comprises a movable frame, a cutting assembly connected to the front end of the frame and a collecting device connected to the rear end of the frame, the cutting assembly comprises a cutting tool capable of rotating horizontally and a driving motor for driving the cutting tool to rotate, and the cutting tool is in transmission connection with the cutting tool through a transmission part; the collecting device comprises a rotating roller and a collecting box, a grass raking roller is arranged on the rotating roller, the rotating axis of the rotating roller is perpendicular to the rotating axis of the cutting tool in the space, and the driving motor is in transmission connection with the rotating roller through a transmission component to drive the rotating roller to rotate to drive the grass raking roller to rotate so as to rake grass into the collecting box. The weeds do not need to be manually collected, so that the weeding efficiency is improved.

The invention relates to the technical field of hemodialysis, in particular to a hemodialysis filter and a filtering system.The hemodialysis filter comprises a tube body, end covers are detachably installed at the two ends of the tube body, and a liquid inlet and a liquid outlet which are communicated with the interior of the tube body are formed in the two ends of the tube body; the filter element is coaxial with a concentric structure arranged between the pipe body and the end cover; the one-way valve body is mounted on the liquid inlet; the compression pipe fitting and the plugging structure are communicated with the liquid outlet, and the compression pipe fitting and the plugging structure are linked, so that when the compression pipe fitting acts, the plugging structure can plug the liquid outlet; the storage assembly is connected with the pipe body and the compression pipe fitting, the storage assembly has two states of being combined with and separated from the compression pipe fitting, and when the storage assembly is separated from the compression pipe fitting, the compression pipe fitting can enable blood in the liquid outlet to flow back, and the situation that the filtering effect is reduced due to the fact that the filter element is blocked is avoided.

The invention relates to the technical field of rock-soil anchoring engineering, in particular to a variable-diameter tension-compression composite anti-floating anchor rod which comprises a water stop ring, a spiral bar, a spherical bearing body, an assembly type support, an end cap, a threaded steel bar and an isolation sleeve, and the threaded steel bar is sequentially connected with the spherical bearing body, the assembly type support and the end cap from top to bottom; an isolation sleeve is sleeved outside the twisted steel from the spherical bearing body to the orifice end of the drilling hole; the spherical bearing body comprises a ball head, a ball plate and a ball nut, the ball head is spherical, the bottom of the ball head is connected with the upper surface of the ball plate, the bottom of the ball plate is connected with the ball nut, and the spherical bearing body is provided with a rib penetrating hole penetrating through the ball head, the ball plate and the ball nut. The spherical bearing body can slide coarse particles in a drill hole or muck falling from a hole opening in time through the arc line of the ball head, the muck accumulation phenomenon on a traditional plate type bearing body is eliminated, the situation that the compression bearing capacity of a grouting body at the position of the spherical bearing body is not affected is avoided, and then cooperative bearing of the pressure-bearing anchoring section and the tension anchoring section is guaranteed in a high-quality mode.

The invention discloses a wafer cutting method, and relates to the technical field of wafer cutting processing. The wafer comprises a front face and a back face which are oppositely arranged, the front face is provided with a plurality of chip function areas and cutting channel areas located between every two adjacent chip function areas, and the wafer cutting method comprises the steps that a front face protection film is attached to the front face of the wafer; carrying out thinning processing on the back surface of the wafer so that the wafer is thinned to a preset thickness; removing the protective film on the front surface, and pasting a through cutting film on the back surface of the wafer; performing laser grooving treatment on the front surface of the wafer corresponding to the cutting channel region; performing back laser transmission invisible cutting on the wafer subjected to the laser slotting treatment corresponding to the cutting channel region, so that the wafer is divided into a plurality of core particles; and stretching the through cutting film so as to enable two adjacent core particles in the wafer to generate an interval, and carrying out material taking treatment on the core particles. According to the method, the steps are few, the film reversing process from grooving to hidden cutting is omitted, the wafer cutting efficiency can be improved, the fragment rate is reduced, the number of core particles is increased, and the machining cost of a single core particle is reduced.

An auxiliary device for hoisting a graphite crucible relates to the technical field of graphite crucible hoisting assistance, and comprises a graphite crucible and a base, the base is in threaded connection with a screw rod, the top of the screw rod is rotatably connected with a hoisting ring through a rotary joint, and the top of the base is provided with a screw rod driving mechanism for driving the screw rod to rotate. The bottom of the base is provided with a fixing mechanism used for supporting the end opening position of the inner wall of the graphite crucible, the top of the graphite crucible is provided with a threaded hole, and the screw rod is in threaded connection with the threaded hole, the auxiliary device for hoisting the graphite crucible is convenient to connect and separate, the trouble that a worker needs to wind a hoisting rope on the graphite crucible is avoided, and the hoisting efficiency is improved. The device is simple in structure, convenient to operate, time-saving and labor-saving, and meanwhile, the trouble of burning out the lifting rope subsequently is avoided, so that consumables are saved, and the production cost is reduced.

The invention provides a rapidly-installed BIPV system, and the system comprises a water guide beam assembly which comprises a W-shaped water guide beam and a T-shaped pedestal. The W-shaped water guide beam comprises a bottom wall, a first side wall and a second side wall, the first side wall and the second side wall extend upwards along the two sides of the bottom wall respectively and incline outwards, and a water guide groove is defined by the first side wall, the bottom wall and the second side wall; a fixed convex cavity is formed upwards in the middle of the bottom wall, the fixed convex cavity comprises a strip cavity body and a round cavity body which are communicated with each other, the round cavity body is located above the strip cavity body, and the diameter of the round cavity body is larger than the inner diameter of the strip cavity body; the T-shaped base comprises a bottom plate and a fixing rod, and the fixing rod is vertically and fixedly connected to the middle of the bottom plate; through holes used for fixing the base to the purline are formed in the positions, located on the two sides of the fixing rod, of the bottom plate. The fixing rod comprises a strip rod and a round rod, the round rod is located above the strip rod, and the diameter of the round rod is larger than that of the strip rod. According to the BIPV system capable of being rapidly installed, the using number of self-tapping screws can be reduced, so that the assembling efficiency is improved, and the construction period is shortened.

The invention provides a high-pressure air storage hole model test device and method, and belongs to the technical field of new energy compressed air energy storage. The test device comprises a test module, a confining pressure module, an integral foundation and a pressurization module; the test module is of a cylindrical structure, a closed cavity is formed in the middle of the test module, a sealing layer, a lining layer and a rock surrounding layer are sequentially arranged from inside to outside, and the test module is provided with a monitoring sensor; the confining pressure module comprises a plurality of confining pressure devices annularly arranged between the test module and the overall foundation, each confining pressure device comprises an elastic element and a pressure applying device, the pressure applying devices are connected with the overall foundation, and the elastic elements are located between the pressure applying devices and the test module and apply external loads to the test module; the pressurizing module is communicated with the closed cavity, high-pressure gas is introduced into the closed cavity, and an internal load is applied to the test module. The high-pressure gas storage model test device can truly reflect the conditions of internal and external loads borne by the high-pressure gas storage, adopts a modular thought in the design scheme, is suitable for multiple test working condition types, and is simple and convenient to operate and low in test cost.

The utility model belongs to the technical field of make-up tools, and particularly relates to a make-up practice board which comprises a base board. The base plate comprises a bottom lining used for supporting and a make-up layer covering the top face of the bottom lining, and a make-up area is arranged on the make-up layer. The eyebrow exercising device further comprises an eyebrow exercising piece. Eye parts are arranged on the base plate, and the eyebrow makeup exercising piece is arranged above the eye parts and detachably connected with the base plate in a clamped mode. A convex area and a concave area imitating the eyebrows of a human body are arranged on the eyebrow exercising piece; during use, a user can practice make-up in the make-up area and practice eyebrow tattoo on the eyebrow make-up piece; after the eyebrow makeup practicing device is used, the makeup area can be cleaned through makeup remover, and the eyebrow makeup practicing piece can be detached from the base plate to be replaced. According to the utility model, through the detachable clamping connection between the base plate and the eyebrow makeup exercising piece, after the eyebrow makeup exercising piece is used, the whole base plate does not need to be replaced as a consumable, so that the consumable is reduced, the cost is reduced, and environmental protection is facilitated.

The utility model discloses a sampling and post-processing integrated acquisition device and a sample detection device. The sampling and post-processing integrated collecting device comprises a hollow holding part and a sampling part. One end of the hollow holding part is open, and the other end of the hollow holding part is closed. The sampling part is arranged at the open end of the hollow holding part. The hollow holding part is provided with a weak part which can form an opening through bending, extruding or puncturing. The hollow holding part is filled with a diluent, a lysis solution or a buffer solution. The hollow holding part of the sampling and post-processing integrated collecting device is filled with diluent (or lysate or buffer solution), and the closed tail end of the swab is provided with the weak part; by breaking off the weak part, the diluent can flow out to wash a sample in the sampling part, dilution or splitting decomposition of the sample and output of the sample are automatically completed, the operation steps of sample detection are simplified, and meanwhile, detection consumables are saved.

The invention discloses an analysis method for high blank value of metal sample element detection, and relates to the field of metal sample detection and analys.The analysis method comprises the steps that initial measurement parameters of X-ray fluorescence spectrometry are set; the method comprises the following steps: processing metal sample detection data by adopting corrected experimental parameters of instrument correction data, acquiring component content according to the metal sample detection data to set next detection time, adjusting measurement parameter setting according to the processed metal sample detection data, carrying out multi-group multi-time detection on the same metal sample again, and analyzing the metal sample data. By reasonably distributing time and instrument occupation, the efficiency of measurement, acquisition, statistics and analysis is improved.

The utility model discloses a stainless steel and stone combined cupboard table top, which relates to the field of cupboards, and comprises a stone base plate and an operating device, the operating device is fixed on the stone base plate, the operating device comprises a stainless steel panel and a main body part, the main body part is used for kitchen work activities of users, and the stainless steel panel is fixed on the stone base plate. The stainless steel panel is connected to the main body part and extends in parallel to the stone base plate, the stainless steel panel is fixed on the upper side of the stone base plate, and the stainless steel panel is exposed out of the upper surface of the stone base plate; in the length direction of the stone base plate, the ratio of the length of the main body part to the length of the operation equipment is not larger than 1 / 2, and the length of the stone base plate is larger than that of the operation equipment. The device has the advantages of being convenient to install, easy to clean, low in cost and the like.

The utility model discloses a kind of water culture devices for yunnan rhizoma polygonati breeding, it is related to yunnan rhizoma polygonati cultivation technical field, including culture rack, the culture rack is slidably connected with multiple water storage channels, and the water storage channel upper end is provided with culture plate;Multiple planting holes are evenly provided in the culture plate, and the culture plate upper end is connected with multiple fixed components, and fixed component is located planting hole outer end.The utility model design structure is reasonable, it can simultaneously carry different batches, different genotypes yunnan rhizoma polygonati breeding material, while independent water supply head, gate plate can individually adjust the water supply of each water storage channel, water supply frequency, realize the accurate management of "one tank one strategy", satisfy the individualized demand of different breeding material, to improve the success rate of breeding, can avoid the problem of "excessive supply" or "insufficient supply" caused by unified water supply, accurately match the demand of each growth stage of yunnan rhizoma polygonati, save water resource, nutrient solution and other consumables, reduce breeding cost.

The present invention discloses a positioning structure for a stiffened steel plate shear wall panel and an installation method thereof, the structure comprising a positioning alarm device for positioning the shear wall panel, an adjustable support device, a vertical detection device, and a wall panel clamping device, a plurality of touch alarm positioning blocks of the positioning alarm device are respectively arranged at positions deviating from the installation position of the floor panel when the shear wall panel is hoisted, the adjustable support device comprises a tension rod and two movable arms respectively hinged with the shear wall panel and the floor panel, and the vertical detection device checks the vertical state by emitting a laser line to see whether it is emitted through a designated outlet of a prism reflection device. The beneficial effects of the present invention are: simple structure, wide application range, low cost, high manufacturing precision, etc., and successfully solves the problem of deviation in alignment and verticality during the manufacturing and installation of wall panels due to the structural characteristics of assembled box plate steel structure buildings.

The utility model relates to the technical field of deaerators, in particular to a starting heating steam pipe row for a deaerator, and aims to solve the problem that after starting steam flows in the pipe row, the uniformity of the steam in the pipe row is poor, and the starting effect of a unit is directly influenced. The device comprises a steam main pipe, a steam guide pipe, a flow distribution pipe, a pipeline support hanger and a boiling pipe, the steam main pipe is vertically arranged, the steam guide pipe and the steam main pipe are crossed, the middle parts of the steam guide pipe and the steam main pipe are communicated with each other, each end of the steam guide pipe is communicated with one flow distribution pipe, a plurality of pipeline support hangers are connected outside each flow distribution pipe, and the pipeline support hangers are used for being fixed with the inner wall of the deaerator; according to the starting heating steam pipe row, through matching of the calibers of all levels of pipelines, the steam flow speed can be controlled, vibration of equipment is reduced, noise is low, and safety and stability of the equipment are easily guaranteed.

The utility model relates to the technical field of equipment for anti-corrosion construction of high-altitude buildings. The anti-corrosion tool for the boundary area of the helicopter deck comprises a support, the support comprises a front frame body and a rear frame body, the front frame body and the rear frame body are each formed by detachably splicing a plurality of square steel, a flat plate is horizontally installed on the front frame body through bolts, a plurality of universal wheels are arranged at the bottom of the front frame body, and the universal wheels are arranged at the bottom of the rear frame body. The hanging basket is arranged at the bottom of the rear frame body, a groove allowing the top of the hanging basket to be inserted is formed in the bottom of the rear frame body, and the side face of the groove and the side face of the top of the hanging basket are fixed together through bolts. The utility model has the beneficial effects that the anti-corrosion maintenance requirement of the helicopter deck boundary area can be met, the maintenance efficiency is improved, the maintenance cost is reduced, and the construction period is shortened.

The utility model relates to a manual demoulding tool which comprises four first angle steels which are arranged at four corners, can be attached to the outer side surface of a concrete test block quadrilateral mould and are used for the concrete test block quadrilateral mould to slide up and down; the bottom reinforcing steel bars are arranged at the bottoms of the first angle steel and located on the back faces of the first angle steel, and every two adjacent first angle steel are connected through the bottom reinforcing steel bars to form a quadrangle; the middle reinforcing steel bars are arranged in the middles of the first angle steel and located on the inner side faces of the first angle steel, the two adjacent first angle steel are connected through the middle reinforcing steel bars to form a quadrangle in a surrounding mode, and the middle reinforcing steel bars limit the concrete test block quadrangle mold to pass through but can allow concrete test blocks to pass through. The concrete test mold can be used for a plurality of concrete test molds one by one, and is convenient to transfer, low in material consumption and favorable for demolding.

The utility model relates to a kind of roadway top anchor rod self-adapting protection devices;The roadway top anchor rod self-adapting protection device is set between the anchor rod of the top of hydraulic support and roadway top;Including soft box body and graded gravel;The soft box body includes bottom plate and soft side wall, side wall is vertically connected in the edge of bottom plate, side wall is connected head to tail;The top of soft box body is open, and graded gravel is contained in soft box body.In the utility model, the roadway top anchor rod self-adapting protection device is set between the anchor rod of the top of hydraulic support and roadway top, can contact the graded gravel inside anchor rod and box body, the deformation of soft side wall is connected with anchor rod, device is set in the top of hydraulic device, so not only guarantee the load-carrying capacity of hydraulic support to roadway top is not lost, also protect the anchor rod of roadway top not to be damaged by hydraulic support.

The utility model relates to a skeleton partition wall board and a partition wall, the skeleton partition wall board comprises a partition wall board body, the partition wall board body comprises a filling board and skeletons, the skeletons are arranged on the front surface and the rear surface of the filling board, and the filling board is clamped and fixed between the two skeletons; pipeline grooves for accommodating pipelines are formed in the left side and the right side or the left side, the right side, the upper end and the lower end of the filling plate; at least one of the front surface and the rear surface of the filling plate is provided with a bottom box reserved block, the framework is provided with a bottom box reserved frame used for containing the bottom box reserved block, and after the framework clamps the filling plate, the bottom box reserved block is contained in the bottom box reserved frame. According to the framework partition wall board and the partition wall, the overall thickness and self weight of the partition wall board and the partition wall can be reduced, and the use amount of keel steel can be reduced.

The utility model discloses desktop temperature control laser tin soldering equipment, which belongs to the field of electronic detonator manufacturing equipment and comprises a welding workbench (1), a conveying channel (2) arranged on the welding workbench (1), a conveying tool (3) arranged on the conveying channel (2), a laser welding unit arranged on one side above the conveying channel (2), and a temperature control unit arranged on the other side above the conveying channel (2). The laser welding unit comprises a laser transmitter (6), an infrared temperature sensor (7) and a lighting unit (8), and a tin welding station (4) is arranged on the other side of the laser welding unit; the tin soldering machine is not contacted with a workpiece in the tin soldering process, so that no contact stress is generated; heat radiation is small, and no static electricity is generated; the laser heating speed is high, and the welding speed is high; narrow areas and micro elements can be welded, and the space limitation is small; consumables are few, and more cost is saved; preferably, a CCD visual system is adopted, visual programming is achieved, and operation and control are easy; the system is smaller in size, simple to operate and more flexible to use; the device is suitable for being combined with various assembly lines.

The utility model discloses a building integrated photovoltaics (BIPV) guide rail type water guide groove connecting structure and a water guide assembly, the connecting structure comprises a supporting groove and a limiting piece, the limiting piece is located on the inner bottom wall of the supporting groove and longitudinally extends along the supporting groove, the cross section of the limiting piece is T-shaped, the limiting piece is used for being embedded with a guide groove in the outer bottom wall of the water guide groove, and the two ends of the supporting groove are open. The supporting groove is used for being inserted into the ends of the two water guiding grooves, the inner wall of the supporting groove can be attached to the outer walls of the water guiding grooves, first flat edges are arranged at openings in the two sides of the supporting groove, second flat edges are arranged at openings in the two sides of the water guiding grooves, the first flat edges are attached to the second flat edges, and locking pieces are arranged on the first flat edges and the second flat edges. The connecting structure is used for limiting the relative displacement of the supporting groove and the water guiding groove in the longitudinal direction and is good in waterproofness, good in wind uplift resistance and easy to install. The water guide assembly has long-acting water resistance and structural stability in a complex environment, and is simple in structure, convenient to disassemble and assemble, convenient to machine, low in material consumption and large in water guide amount.

The utility model relates to the technical field of industrial robots, and discloses a rotary joint structure of a robotic arm and the robotic arm.The rotary joint structure comprises a first shell, a driving assembly, a first synchronous wheel, a second synchronous wheel, a synchronous belt and a speed reducer assembly, the first synchronous wheel is fixedly connected with the output end of the driving assembly, the second synchronous wheel is fixedly connected with the input end of the speed reducer assembly, the synchronous belt is diffracted on the first synchronous wheel and the second synchronous wheel, and the speed reducer assembly is connected with the first shell and a second shell or a mounting base of the other rotary joint structure. And the first shell can rotate relative to the other rotary joint structure or the mounting base through the speed reducer assembly. According to the rotary joint structure, the driving assembly with the first synchronizing wheel is adopted to drive the second synchronizing wheel to force the speed reducer assembly to work, 360-degree rotation of the rotary joint structure is achieved, and the operation braking performance and the braking effect are better.