67results about How to "Resolve the break" patented technology

The invention provides a self-adaptive vacuum defoaming process optimization method based on an intelligent control system, and aims to solve the problems of micro-bubble residue, too high energy consumption and the like caused by the fact that a traditional defoaming technology cannot adapt to liquids with different viscosities, and accurate defoaming is realized through a multi-dimensional sensing technology and strategy generation and regulation. Presetting a high-precision vacuum parameter and a viscosity grading strategy; establishing a liquid characteristic vector model by adopting a YOLOv7 and Hough transformation algorithm, and matching a historical optimal strategy in combination with weighted cosine similarity; generating a defoaming strategy based on the pre-training network and a multi-objective optimization algorithm, and verifying the defoaming strategy in the virtual environment; defoaming is carried out in four stages, and efficient foam breaking is achieved through sectional PID control, resonance vibration and cooperation of a two-stage pump; a Kalman filtering algorithm is integrated, pressure, temperature and vibration data are fused, and vacuum pump power and a heating strategy are adjusted; and constructing a multi-index evaluation system, and driving strategy iterative optimization through a reward signal.

The utility model relates to an anti -fatigue antiskid floor mat, including floor mat body, floor mat body includes upper surface layer and lower surface layer, the upper surface layer with the lower surface layer between foaming fills setting PU foaming layer, the lower surface layer is away from the upper surface layer one side surface is provided with antiskid structure, the antiskid structure includes the antiskid sheet of bonding agent and the lower surface layer sticking, the antiskid sheet from top to bottom includes the sticking layer, reinforcing layer and antiskid layer in proper order, the sticking layer with the antiskid layer all acrylic resin material is made, the sticking layer is in flat state and is pasted through the adhesive and is set in the surface of the lower surface layer away from the upper surface layer side, the cross section of antiskid layer is as a whole in whole wave -shaped, the reinforcing layer is pasted through the adhesive with the sticking layer and the antiskid layer sticking respectively. The utility model is better than ordinary anti -fatigue floor mat antiskid effect, and is easier to place and is favorable to cleaning and airing.

The utility model belongs to the technical field of lithium ion batteries, and particularly relates to an invisible aluminum-to-nickel tab structure, which comprises an aluminum tab and a nickel connecting piece, the connecting area of the aluminum tab and the nickel connecting piece is provided with mutually matched embossing structures, and the embossing structures enable the aluminum tab and the nickel connecting piece to form mechanical interlocking. And an interface of the connecting area is provided with a tab glue anti-breaking layer. According to the utility model, the mechanical strength and the shock resistance of an aluminum-nickel interface are remarkably improved through the composite structure design of embossing interlocking, tab glue breakage prevention and welding reinforcement.

The utility model relates to sanitary towel technical field provides a sanitary towel of wing reinforcing type, solves the problem that the existing sanitary towel wing is easy to have structural breakage when taking down, the utility model discloses sanitary towel main part and the wing of symmetry that is equipped with sanitary towel main part both sides, each sanitary towel main part includes the flexible surface layer, the flow guide layer, the absorption layer and the bottom mould that set gradually from top to bottom, the absorption layer includes the absorption core and the wrapping layer that is wrapped in the absorption core outside, the flexible surface layer and the bottom mould extend to both sides and hold the reinforcing part, the reinforcing part and flexible surface layer, the bottom mould compound form each wing, and the sandwich wing is formed through the reinforcing part of flexible surface layer and bottom mould extension part direct clamping, solves the problem of traditional wing fracture.

The embodiment of the invention provides a quartz tube spray cleaning machine which comprises a bearing platform used for receiving and bearing a horizontally placed quartz tube; the driving device is in transmission connection with the bearing platform and is used for driving the bearing platform to rotate so as to rotate the horizontally placed quartz tube into a vertical state; and the spraying device is used for spraying cleaning liquid to the quartz tube in the vertical state so as to clean the quartz tube. The spraying cleaning machine for the quartz tube can prevent the quartz tube from being broken in the cleaning process.

The application discloses a CAD track turnout multi-stage intelligent linkage connection and adjustment method, comprising the following steps: S1, integrating structured parameters of various turnout types, generating a turnout basic parameter library, and generating an association mapping table recording the logical relationship between turnouts; S2, automatically calling the turnout basic parameter library, calculating the optimal turnout angle and endpoint coordinates, and automatically generating a connecting line; S3, when the position or angle of the reference turnout is adjusted, based on the association mapping table, the adjustment information is transmitted to all associated secondary turnouts, and the secondary turnouts and their connecting lines are driven to be synchronously adapted; S4, real-time collection of the adjusted data, combination of the turnout parameter threshold and the association mapping relationship, recalculation of the optimal connecting path, and generation of a new connecting line. The application can greatly shorten the time consumption of single-group turnout docking, solve the problems of line mispositioning and fracture, guarantee engineering safety, reduce the dependence on the experience of designers, greatly shorten the design cycle and reduce the rework rate.

The present application relates to a kind of support positioning assembly for printed circuit board laser processing equipment to solve the problem of printed circuit board fracture caused by hard support pressing under high temperature condition, it relates to electric vehicle circuit board laser welding support technical field, including four groups of welding magnetic support column, welding magnetic support column includes in turn from top to bottom needle, upper fixed section, middle fixed section and magnetic component;Middle fixed section bottom side is equipped with fixed column and first spring, first spring is integrated compound spring structure;The present application can realize flexible damping, offset impact load in operation process, avoid rigid extrusion and lead to plate cracking, pad drop;First spring can be independently telescopic, adapt to workbench surface concave-convex and printed circuit board itself warping, ensure that four corners are uniformly stressed, simultaneously utilize high temperature deformation characteristics and realize high temperature automatic pressure release, printed circuit board is heated and expands, warping when actively retreat, solve the problem of printed circuit board fracture caused by hard support pressing under high temperature condition.

The utility model discloses an air door of a mine return air duct, which belongs to the technical field of non-pressure air doors, solves the problems that the existing air door of the mine return air duct is short in service life and difficult to disassemble and assemble, and comprises a crank arm door leaf and a connecting door leaf which are connected through a locking bolt. Inclined pull reinforcing ribs and transverse lining ribs are arranged on the leeward sides of the crank arm door leaf and the connecting door leaf, a reinforcing rib plate is arranged at the joint of the crank arm door leaf and the outside, a connecting sleeve is arranged on the reinforcing rib plate, and connecting positioning cylinders are arranged on the windward sides of the crank arm door leaf and the connecting door leaf and are connected through Z-shaped pins. The utility model has the characteristics of strong bearing capacity, long service life and easiness in disassembly and assembly, and can adapt to complex working conditions of the mine return air duct.

This application relates to the field of computer technology and discloses an image-based test item segmentation method, apparatus, device, and storage medium. The method includes extracting text blocks and their bounding box coordinates from a target test item image; sorting the text blocks according to their bounding box coordinates to obtain a first sorting queue; adjusting the order of the text blocks according to their semantic relationships to obtain a second sorting queue; loading the text blocks in the second sorting queue into a cache queue of a grouping model, whereby the grouping model groups text blocks belonging to the same test item in the cache queue and outputs a first grouping result; retaining the text blocks in the last group in the cache queue; loading the text blocks extracted from the next test item image into the cache queue so that the grouping model outputs a second grouping result; and obtaining the test item segmentation result based on the grouping result. The method of this application achieves the technical effect of improving the accuracy of test item segmentation.

This invention relates to a connector, comprising an inner housing and an outer housing movably fitted onto the inner housing in a front-to-back direction. A ferrule is disposed within the inner cavity of the inner housing, and an optical fiber is mounted within the ferrule in the front-to-back direction. A positioning seat is located at the rear end of the ferrule, and a push spring is located at the rear end of the positioning seat to provide a forward pushing force to the ferrule. A limiting seat is inserted at the rear end of the inner housing to limit the push spring within the inner housing. The connector has a rear housing at its rear end, connected to the inner housing and for the optical fiber to pass through. The rear housing contains a cavity for accommodating the optical fiber and allowing the optical fiber to bend during connector mating. The connector of this invention has a rear housing with a cavity at its tail end. When the number of optical fiber cores inserted inside the connector is large or the bending space inside the connector is small, the optical fiber can bend and retract within the cavity of the rear housing, ensuring the reliability of connector mating.

The utility model relates to a crusher tooth convenient to install, which comprises a blocky crusher tooth body, the crusher tooth body consists of a working part and an installing part which are integrally formed, and the area of one side, far away from the installing part, of the working part is gradually reduced, so that the whole working part is of a trapezoidal structure with a wide lower part and a narrow upper part. At least one mounting hole is formed in the upper end of the working part, a hard alloy block is embedded and welded in each mounting hole to serve as a working head to conduct crushing operation, the lower end of the working part is in transition connection with the mounting part through a transition edge, and the middle position of the mounting part in the vertical direction is concaved inwards to form an assembling through hole. And after the mounting seat of the crusher is inserted into the assembly through hole of the mounting part and is fixed through a fastener, the crusher and the crusher tooth body are connected and fixed. The utility model has the advantages of simple and reasonable structure, convenience in mounting and dismounting, good overall firmness, reduced cost, improved working efficiency and the like.

The utility model discloses a kind of rotary yarn guide mechanism, including the mounting frame connected with external device, the first roller for yarn guidance is symmetrically rotated on the mounting frame, the second roller for yarn guidance is slidably connected on the mounting frame by driving element, two groups of the first roller and single group second roller form triangular guide area on mounting frame, the mounting frame is symmetrically provided with connecting seat, two groups of the connecting seat are respectively arranged at the corresponding hypotenuse of triangular guide area.The utility model forms triangular guide area by two groups of first roller and second roller, and utilizes motorized rail to drive second roller vertically adjustable, cooperates with cross plate, gasket and rectangular plate, and forms two-way stroke limiting structure with abutting bar, can flexibly adjust yarn routing corner and overall tension, simultaneously can accurately constrain component sliding stroke, avoid overtravel collision and yarn rigidly pull fracture, greatly improve the regularity and operating stability of yarn conveying routing.

This utility model relates to the field of brake calipers, and discloses a built-in brake clamping force transmission module assembly and its brake motor assembly. The clamping force transmission module includes an upper module and a lower module, with upper and lower pins respectively injection-molded in the upper and lower modules. The upper and lower pins are electrically connected via a flexible flat cable. Several PCBA elastic contact pins are mounted on the PCBA board, and a pin module is provided on the force sensor. The pin module includes several sensor elastic pins for transmitting brake clamping force signals. The sensor elastic pins are connected to the lower pins, and the PCBA elastic contact pins are connected to the upper pins, so that the signal emitted by the force sensor is transmitted to the PCBA through the clamping force transmission module. In this utility model, the clamping force transmission module, PCBA, and force sensor are all connected by elastic pin contacts. When the elastic pin contacts are connected, precise alignment is not required during assembly, reducing the requirements for the production and assembly accuracy of related components, simplifying the assembly process, and avoiding losses caused by improper assembly.

The application relates to a bridge damping tenon device, which comprises a lower mounting base, a lower bottom plate fixed at the top of a lower embedded plate, an upper mounting base, a fixed guide piece fixed at the bottom of an upper embedded plate and formed with a longitudinal sliding groove, an energy consumption component and a plurality of damping tenons which are respectively penetrated into the movable guide piece and the lower bottom plate at the upper and lower ends of the energy consumption component. The energy consumption component of the application can resist horizontal shear force during an earthquake by penetrating the movable guide piece and the lower bottom plate at the two ends of the plurality of damping tenons, so that the fracture caused by stress concentration at the end is avoided. A rubber connecting piece is arranged in the movable guide piece of the damping tenon to adapt to deformation, which is beneficial to the bending energy consumption of the whole damping tenon. The damping tenon is connected through a sleeve thread, so that the normal use of the bottom plate is not affected after damage, and the overall damping effect and structural reliability are better.

The application relates to the technical field of power system data analysis and artificial intelligence, and discloses a decision target and multi-source heterogeneous data auxiliary decision report generation method and system; the generation method realizes the automatic generation of the power auxiliary decision report through decision target driven information dimension analysis, multi-source text standardization processing, long text global semantic coding, key information screening, small sample driven optimization and structured rule mapping; the extraction result is highly matched with specific decision targets such as dispatching and fault disposal, and the decision adaptability is strong; the method can be migrated across scenes with few labeled samples, has strong generalization ability, and has low adaptation iteration cost; in combination with secondary error correction and semantic filtering, the method effectively resists the interference caused by oralization and non-standard format, is stable in extraction precision, retains the cross-paragraph correlation information in the long text through semantic blocking and cross-block attention fusion, and significantly improves the efficiency of power text analysis and the objectivity and timeliness of the decision report.

The invention relates to the technical field of automatic detection of optical fiber preforms, and discloses automatic detection equipment for lathe traction of optical fiber preforms, which comprises a bracket, a melting furnace fixedly connected to the top of the bracket, a clamping system fixedly connected to the top of the bracket, and a traction system slidably connected to the bottom of the bracket, the glass bead falls under gravity to push the sliding block to slide along the sliding groove and drive the moving block to move downwards to stretch the spring, the moving block moves downwards to push the triangular block and the moving rod to move downwards, and the protruding block and the limiting groove are matched to enable the two gears to rotate reversely, drive the gear ring to rotate and drive the connecting rod to open for the glass bead to pass through. The problems that in the falling stage of the generated glass bead, the diameter of the optical fiber is far smaller than that of the glass bead, and the glass bead cannot penetrate through a centering hole of the optical fiber, so that the optical fiber is accumulated and cannot be detected are solved.

The application provides a compression structure and a compressor, and the compression structure comprises: a cylinder, which has a compression cavity inside; the compression cavity is a cylindrical cavity; a roller component, which is movably arranged in the compression cavity; and a sliding vane, which is movably arranged in the compression cavity and connected with the roller component to divide the compression cavity into an air inlet cavity and an air outlet cavity; wherein the cylinder comprises a first inner wall surface surrounding the compression cavity and a second inner wall surface connected with the first inner wall surface, the second inner wall surface has an exhaust groove in communication with the air outlet cavity between the second inner wall surface and the compression cavity, and the second inner wall surface is an arc surface; along the extending direction of the second inner wall surface, the shortest distance between the second inner wall surface and the axis of the compression cavity gradually increases. The compression structure of the application makes the discharge of liquid more smooth, and ensures that the compressor will not be over-compressed, and the timely discharge of liquid during the compression process can effectively avoid the damage of the pump body caused by the over-compression impact of the compressor pump body.

This utility model relates to the field of electricity and discloses a high-elasticity plug-in electricity meter, including an electricity meter with a plug fixedly connected to one side of the meter. It also includes a back plate, which is fixedly disposed on one side of the electricity meter. Multiple rotating grooves are formed on the outer periphery of the back plate, and a fixed shaft is fixedly connected to the opposing sides of the multiple rotating grooves. A protective component is fixedly connected to the outer periphery of the fixed shaft. A support plate is fixedly disposed on one side of the back plate, and a spring plate is slidably connected to the outer periphery of the support plate. A base plate is fixedly connected to one end of the support plate. In this utility model, the storage component consisting of the spring plate, spring, and protective plate enables orderly storage of the electricity meter wiring, avoiding problems such as wire surface wear, insulation layer cracking, and internal copper core breakage caused by random placement. Simultaneously, the wire at the plug-meter interface can be placed inside the fixed groove on the side connected to the elastic band, effectively distributing the weight of the plug end and extending the service life of the electricity meter wiring.

The invention discloses a surrounding rock information cross-regional long-distance automatic recording system, which is characterized in that tunnel surrounding rock characteristics are calibrated through a laser calibration device, images with laser calibration information are acquired by using a surrounding rock information acquisition sensor, distortion correction is performed on the surrounding rock images by means of the laser calibration information, and corresponding correction matrixes are obtained; splicing is completed on the middle plane; position information of surrounding rock image splicing is automatically recorded, and automatic correction of tunnel surrounding rock specified mileage images and tunnel direction splicing are achieved by means of relative fixing characteristics of a surrounding rock information acquisition sensor and a tunnel shooting area; automatically starting a surrounding rock integrity classification function, and performing crushing, jointing and integrity judgment on the surrounding rock image through an integrity classification algorithm; after image data of a specific mileage is accumulated, joint feature recognition is automatically performed on a joint image, and information such as the number of joints and the direction of the joints is obtained.

The application discloses a kind of acupuncture flexible mechanical arm and its using method, belong to intelligent medical treatment technical field, acupuncture flexible mechanical arm includes control system and with the wire driving device electrically connected with control system, wire driving device includes installation fixed base disk and multiple wire driving components;Installation fixed base disk is provided with flexible hose, multiple support discs are provided on the outer wall of flexible hose, multiple through holes are provided on each support disc, the execution end of flexible hose is provided with needle and depth camera;Acupuncture flexible mechanical arm realizes the execution end of flexible hose and needle and depth camera on it according to predetermined trajectory movement by using wire driving mode, drives needle to be inserted into human acupoint to achieve the purpose of acupuncture treatment, more safe on man-machine interaction, solve the problem that the safety hidden danger that robot acupuncture system exists and is easily collided with patient body because of using rigid multi-axis mechanical arm to realize driving needle movement.

This invention discloses a rotating shaft connector, comprising: a housing, a first rotating shaft, a second rotating shaft, a third helical gear, and a wire. The first rotating shaft has a first connecting section extending from a first through hole, and the outer peripheral wall of the first rotating shaft is provided with a first helical gear. The end face of the first connecting section is provided with a first wire-passing hole, and the first rotating shaft is provided with a first notch communicating with the first wire-passing hole. The second rotating shaft has a second connecting section extending from a second through hole, and the outer peripheral wall of the second rotating shaft is provided with a second helical gear. The end face of the second connecting section is provided with a second wire-passing hole, and the second rotating shaft is provided with a second notch communicating with the second wire-passing hole. The third helical gear meshes with the teeth of the first helical gear and the second helical gear respectively. The wire extends into the first wire-passing hole, passes through the first notch and the second notch, and extends out to the second wire-passing hole. In this way, the part of the wire located inside the rotating shaft connector always remains straight during rotation, which can fundamentally solve the problem of wire breakage.

This application relates to the field of semiconductor technology, specifically to a MEMS piezoelectric loudspeaker and acoustic device, including a substrate and a piezoelectric stack disposed on the substrate; the piezoelectric stack has multiple tangents extending from the geometric center of the piezoelectric stack to the edge of the piezoelectric stack, forming multiple cantilever beams arranged rotationally symmetrically about the geometric center; each cantilever beam has a fixed edge away from the geometric center; at least two of the cantilever beams have trench structures on the substrate, the trench structures being located close to the fixed edge of the cantilever beam. This application can reduce peaks at resonant frequencies and effectively expand the frequency bandwidth, improving overall audio performance; in addition, this application can also reduce diaphragm stiffness, thereby significantly enhancing its low-frequency deformation capability and optimizing the low-frequency sound pressure level curve.

The present application relates to a kind of fuel cell stack structure, including stack core and the first current collector plate and the second current collector plate being closely arranged on the upper and lower surfaces of the stack core respectively, the stack structure further includes the disc spring end plate and the stack back end plate being sequentially arranged above the first current collector plate from bottom to top, disc spring is arranged in the disc spring end plate;When the stack back end plate is applied to the lower pressure, the stack back end plate applies the stack force to the stack spring, in turn, the stack force is applied to the stack core.Compared with prior art, the present application can solve the problem of uneven stress of stack core during compression, and solve the problem of end plate stress deformation caused by the original force applied to the end plate outside in prior art.

The utility model relates to the technical field of marine ranches, and discloses an automatic netting covering system which comprises a net cage frame and further comprises a covering module, the covering module is composed of a covering assembly and a control rope, and the control rope is divided into a covering part, a rotating part, a covering connecting part and a rotating connecting part through a direction adjusting roller set. The sealing cover connecting part and the rotary connecting part are independently dragged through a winding module A and a winding module B. The top face of the net cage frame is fixedly connected with two end frames, and the sealing cover part penetrates through hole bodies in the side faces of the end frames and is in sliding connection with the end frames. By means of the mode that the lifting tractor drives the net cage frame to descend, by means of the distance change between the net cage frame and the rolling module, the net cage frame drives the cover net to move according to the control track to achieve closing, the movement track of the net cage frame and the movement track of the cover net are coupled, and the control mode is simplified; and the problem of traction fracture caused by insufficient control precision due to speed difference adjustment is avoided.

This invention relates to a connector, comprising an inner housing and an outer housing movably fitted onto the inner housing in a front-to-back direction. A ferrule is disposed within the inner cavity of the inner housing, and a positioning seat is provided at the rear end of the ferrule. A push spring for providing a forward pushing force to the ferrule is provided at the rear end of the positioning seat. A limiting seat for limiting the push spring within the inner housing is inserted at the rear end of the inner housing. The connector also includes a rear housing, which has a connecting feature, and the inner housing has an adapting connecting feature. The connecting feature and the adapting connecting feature cooperate to allow the inner housing to be inserted into the rear housing in a direction perpendicular to the front-to-back direction, with the rear housing abutting against the limiting seat to fix the limiting seat within the inner cavity of the inner housing. In this invention, the inner housing and the rear housing adopt a radially interlocking installation method, eliminating the need for a cantilever beam structure. The limiting seat is entirely placed within the inner cavity of the inner housing and fixed by the rear housing, thus external forces are no longer transmitted to the limiting seat, fundamentally solving the problems of snap-fit ​​failure and cantilever breakage.

The invention discloses an engineering innovation practical ability cultivation method and system based on a domestic EDA platform and AI-PBL, and belongs to the field of engineering education and intelligent teaching. A domestic EDA tool is taken as an engineering practice carrier, real engineering problems and subject competition tasks are taken as driving, and a stepped progressive project system driven by an ability matrix is constructed, so that the engineering innovation practical ability is cultivated. And systematic fusion of professional knowledge learning, engineering practice training and innovative design capability cultivation is realized. In the implementation process, an artificial intelligence technology is introduced to carry out intelligent support, design assistance, debugging analysis and engineering practice behavior data processing on the learning process, and the engineering practice ability, team cooperation ability and innovative design ability of students are comprehensively evaluated based on a multi-dimensional ability evaluation index system. According to the method, the problems of course content splitting, discontinuous ability cultivation chain and single evaluation mode in existing EDA practical teaching are solved, and the engineering practice task implementation efficiency and ability evaluation consistency are improved.

The invention relates to the technical field of medical equipment, in particular to a full-automatic waste medical needle treatment device which comprises a treatment body, a fixing assembly used for clamping an injector is arranged at the top of the treatment body, a lifting sliding table ascending and descending in the vertical direction is arranged in the treatment body, and a hot pressing assembly and a needle winding assembly are integrated on the lifting sliding table; the hot pressing assembly is used for heating, softening and flattening a needle head, the needle winding assembly is used for winding the flattened needle head into a cluster, and a disinfection part and a stripping part are arranged on the needle winding assembly; the device further comprises a control device which is used for driving the lifting sliding table to ascend and descend and coordinating the heating flattening action of the hot-pressing assembly, the winding action of the winding needle assembly, the disinfection action of the synchronous disinfection part and the separation action of the stripping part. A clamping fixing and lifting integrated hot pressing and winding structure is adopted, and the processes of heating softening, flattening shaping, winding clustering, disinfection and stripping are combined, so that non-contact treatment of waste needles, effective killing of pathogenic microorganisms and collection of medical waste are achieved.

This utility model relates to the field of brake calipers, and discloses an electromechanical brake caliper assembly integrating a parking lock mechanism, including a brake caliper assembly and a brake motor assembly, which are fixedly connected. The brake caliper assembly includes a caliper body, a force sensor, a ball screw assembly, and a friction pad assembly. The brake motor assembly includes a PCBA, an ECU main housing, and a lower housing arranged from top to bottom. An actuator motor is installed at the bottom of the lower housing, and a gear transmission assembly and a parking lock device are installed inside the lower housing. The actuator motor and the gear transmission assembly are linked through the parking lock device. A clamping force transmission module is provided between the PCBA and the brake caliper assembly. The PCBA's elastic contact pin is connected to the upper pin, so that the force sensor sends a signal to the PCBA through the clamping force transmission module. Compared with using an external cable to connect the force sensor and the controller to transmit signals, this utility model is simpler to assemble and the signal transmission is safer and more reliable.

The utility model discloses an anti-falling grain pile height gauge, and particularly relates to the technical field of grain pile detection machinery. Comprising a head height measuring rod and a body height measuring rod which can be connected into a whole, the head height measuring rod is a hollow pipe comprising a tip section and a connecting section, the body height measuring rod is a hollow pipe comprising an inserting section and a connecting section, the outer diameter of the inserting section is the same as the inner diameter of the connecting section, and the inserting section extends into the connecting section to connect the head height measuring rod and the body height measuring rod; the inner side of the head height measuring rod is fixedly connected with a head anti-disengaging ring, the head anti-disengaging ring is connected with a head anti-disengaging rope, and the head anti-disengaging rope penetrates through the inner side of the head height measuring rod and the inner side of the body height measuring rod and extends out of the connecting section. According to the height measuring device, the head anti-falling ring and the head anti-falling rope are arranged, the head height measuring rod and the body height measuring rod are connected, the problem that parts of the height measuring device are lost due to falling of the rods of the height measuring device is solved, the efficiency of measuring work is improved, and unnecessary disturbance to grain piles and influence on the stability of grain storage are avoided.

The utility model belongs to the technical field of aerial cables, and particularly relates to a highly wear-resistant aerial cable, which comprises a conductor and an insulating layer, the insulating layer is arranged on the peripheral side of the conductor, a heat-insulating layer is arranged on the peripheral side of the insulating layer, a heat-resistant reinforcing layer is arranged on the peripheral side of the heat-insulating layer, a heat-resistant layer is arranged on the peripheral side of the heat-resistant reinforcing layer, and a flame-retardant layer is arranged on the peripheral side of the heat-resistant layer. A protective layer is arranged on the peripheral side of the flame-retardant layer, and a wear-resistant coating is arranged on the peripheral side of the protective layer. According to the utility model, the problems that when the cable is exposed in the sun for a long time, the material on the surface of the cable is possibly subjected to thermal aging and further cracks due to poor high temperature resistance of the cable are solved, and the problem that the cable is loosened or fractured due to structural damage caused by frictional wear in the long-term use process is solved.