132results about How to "Improve elastic deformation ability" patented technology

The invention belongs to the field of petrochemical engineering, and particularly relates to a litchi-shaped hollow polymer microsphere as well as a preparation method and application thereof. The preparation method comprises the following steps: preparing litchi-shaped polymer hollow microspheres by adopting an inverse emulsion polymerization method, uniformly dispersing a water-soluble initiator and a water-soluble monomer solution in an oil-phase continuous phase under the emulsification action of a surfactant, and initiating polymerization in a water-in-oil reaction system through modified mesoporous microspheres loaded with metal copper quantum dots. Because the initiation rates of the water-soluble initiator and the metal copper quantum dots are different, a litchi-shaped structure is presented on the surface of the microsphere, and then the template is etched to form the litchi-shaped hollow-structure microsphere. The hollow structure in the microsphere improves the elastic deformation capacity of the microsphere, and the litchi-shaped appearance of the microsphere can play a better plugging effect, so that the dual functions of'displacement 'and'plugging' of the microsphere are really realized.

The invention belongs to the field of petrochemical engineering, and particularly relates to a temperature-resistant salt-resistant hollow polymer microsphere as well as a preparation method and application thereof. The preparation method comprises the following steps: preparing polymer hollow microspheres by adopting an inverse emulsion polymerization method, initiating polymerization in a water-in-oil reaction system through modified mesoporous microspheres loaded with metal copper quantum dots, and selectively etching off a template by utilizing hydrofluoric acid, so as to form a hollow structure. The elastic deformation capacity of the microspheres is greatly improved through the hollow structure, when the pressure in front of the blocked pore throat is increased to a certain value, the polymer microspheres can be easily extruded and deformed due to the extrusion effect, so that the polymer microspheres break through the pore throat like an amoeboid, certain negative pressure can be formed between the pore throat and surrounding rocks at the moment, and the pore throat is blocked. The injected water can carry the remaining oil to quickly pass through the small pore throats, and the microspheres can recover the form after passing through the pore throats and continue to move forwards, so that the oil displacement rate is increased.

In order to solve the technical problem that an existing mechanical auxiliary support cannot achieve elastic deformation control in the milling machining process of a thin-wall annular part, the invention provides an active control device and method for machining elastic deformation of the thin-wall annular part. The clamping module is set up, and positioning and clamping of the thin-wall annular part are achieved; an active supporting module is designed, controllable supporting force is applied to the inner molded surface of the thin-wall annular part through a plurality of independent supporting devices with the controllable supporting force, and a foundation is provided for active control over elastic deformation in the milling machining process; the deformation monitoring module and the regulation and control module are combined, active control over elastic deformation in the machining process of the thin-wall annular part is achieved for the first time, and the problem of elastic deformation caused by introduction of milling force in the machining process of the thin-wall annular part is solved.

The invention discloses a cable interface bonding modified material and a preparation method thereof, and the cable interface bonding modified material comprises the following components in percentage by mass: 50-60% of matrix resin, 15-20% of a modifier and 25-30% of a conductive filler, wherein the matrix resin is composed of polypropylene and an elastomer, and the mass ratio of the polypropylene to the elastomer is (2.2-2.8): 1; the modifier is a hyperbranched polyester polyfunctional group modifier, the molecular weight of the hyperbranched polyester polyfunctional group modifier is 9000-11000, and the density of polar groups in the hyperbranched polyester polyfunctional group modifier is 2.5-3.5 mmol / g. According to the technical scheme, the interface bonding stability of the semi-conductive shielding layer and the insulating layer of the cable can be improved.

The invention provides a floating radio frequency connector and an elastic body thereof, and belongs to the technical field of coaxial connectors. The floating radio frequency connector comprises a fixed outer conductor, a floating outer conductor, a floating insulator and a floating inner conductor, the floating inner conductor comprises a contact body and an elastic body, the contact body is fixedly installed in the floating insulator, the elastic body comprises a welding foot part and a deformation part, at least part of the deformation part is of a spiral structure, and the welding foot part is located at one axial end of the deformation part. The contact body is located at the end, axially away from the welding foot part, of the deformation part, and the contact body and the elastic body are of a split structure or an integrated structure. The elastic body of the floating radio frequency connector comprises the elastic body. According to the invention, the deformation part of the floating inner conductor is designed into a spiral structure, so that the elastic deformation capability of the deformation part in each direction is enhanced, and the problems of fatigue fracture and connection failure of a welding pin and a substrate are avoided.

The Peltier effect is combined with the shape memory material and the thermal expansion and cold contraction phenomenon, the bionic muscle is provided, the bionic muscle can move according to the command of an electric signal, the length of the bionic muscle can be stretched and contracted under the control of the electric signal, so that thrust or tension is provided for a moving part, the size can be infinitely small, and the bionic muscle is suitable for being used in the field of medical instruments. Movement is free of noise, control is flexible, convenience is provided for miniaturization, intellectualization and sensitization of equipment, the robot can act more naturally and smoothly, expressions are richer and more colorful, infinite possibility is provided for the broken limb reconstruction technology, and the robot can serve as a power element and can be used for bionic manufacturing, mechanical manufacturing and the like. The method is applied to the fields of intelligent manufacturing, high-end equipment manufacturing, robot expression muscle manufacturing, broken limb reconstruction and the like.

The utility model provides a sealing structure, a container and a vehicle, the sealing structure comprises a sealing strip, and the sealing strip is provided with a mounting part, a bubble tube part and a supporting part arranged between the mounting part and the bubble tube part. The installation part is used for being installed on one of a cabinet body and a cabinet door, a cavity is formed in the supporting part, a magnetic attraction piece is arranged in the cavity, the cavity extends in the length direction of the sealing strip, the magnetic attraction piece is used for attracting the other one of the cabinet body and the cabinet door, and the bubble pipe part abuts against the other one of the cabinet body and the cabinet door. According to the sealing structure, the installation part, the supporting part and the bubble pipe part are sequentially arranged on the sealing strip, so that the installation part is extruded to generate elastic deformation, and extrusion force is transmitted to the supporting part; the supporting part can transmit extrusion force, the magnetic attraction part can be connected with the cabinet body or the cabinet door, it is guaranteed that the bubble pipe part is subjected to sufficient extrusion force, and therefore the sealing effect of the sealing structure on the cabinet door and the cabinet body can be effectively guaranteed.

The invention discloses a preparation method of an elastic warm-keeping woolen fabric, and relates to the technical field of fabrics. Disulfide bonds among wool fabric fiber peptide chains are opened by utilizing hydrothioacetic acid under the assistance of high temperature, so that binding force among molecules is reduced, then the disulfide bonds are randomly combined under the action of an oxidizing agent to form a curled state, the fabric is indirectly endowed with the elastic property, and the warm-keeping and breathable effects are achieved; then, plasma is used for generating an etching effect on the fiber surface, scales are stripped, oxygen-containing and nitrogen-containing polar groups are introduced, so that the elastic deformation capacity of the fiber is improved, more grooves are formed in the fiber surface along with the increase of the pressure intensity, then nano-zinc oxide is used for filling, and a soybean hollow fiber membrane is compounded, so that the elastic deformation capacity of the fiber is improved. Meanwhile, the zinc oxide particles are fixed on the woolen cloth fibers, infrared rays of a human body are shielded, heat loss is reduced, and therefore the heat retention property of the fabric is improved.

The utility model relates to the field of a windshield structure of a track model, and discloses a sealed connection type simulation windshield of a track model, which comprises a fixed frame door, a connecting frame and an elastic sheet which are arranged at the end part of a carriage or the end part of a locomotive reconnection, and the connecting frame is positioned on one side of the fixed frame door facing the outside; a connecting buckle is arranged on the side, facing the fixed frame door, of the connecting frame, a hook claw is arranged at the tail end of the connecting buckle, the hook claw penetrates through an avoiding notch formed in the fixed frame door and then hooks the fixed frame door, the connecting buckle is limited by the avoiding notch to move in the vertical direction, and the connecting buckle can deflect in the horizontal direction. The elastic piece is located on the side, facing the interior of the compartment or the locomotive reconnection unit, of the fixed frame door, at the beginning, the hook claw hooks the fixed frame door, the elastic piece makes contact with the hook claw, the windshield is arranged on the side, facing the outside, of the connecting frame, the windshields on the two adjacent compartment or locomotive reconnection units make contact with each other, close contact is still kept during turning, and no gap is generated. And the simulation degree is higher.

The utility model relates to the field of electric contact elements, in particular to a solid fisheye terminal, and aims to solve the technical problem that the conventional solid fisheye terminal is high in processing cost due to complex structure. The solid fisheye terminal provided by the utility model comprises a flat main body. A fisheye groove is dug in the flat body, so that the flat body is provided with a connecting wall and side walls located on the two sides of the connecting wall. The flat main body comprises a large-diameter holding part and a sharp corner guide part extending from one end, facing the printed board, of the large-diameter holding part, and a deformation groove extending in the same direction as the large-diameter holding part is formed in one side, facing the connecting wall, of the side wall; and the extension range of the deformation groove along the length direction of the terminal does not exceed the length range of the large-diameter holding part along the length direction of the terminal. In this way, the side wall located at the sharp corner guide part can be still kept original, the number of structures on the stamping head during stamping machining is reduced, and the machining cost and machining difficulty of the solid fisheye terminal are reduced.

The invention provides a roll core and a battery, and relates to the technical field of energy storage. The roll core provided by the invention comprises a first pole piece, a diaphragm and a second pole piece, the first pole piece, the diaphragm and the second pole piece are laminated and wound to form a winding core; the diaphragm comprises a first diaphragm layer and a second diaphragm layer; the first diaphragm layer comprises a first part exceeding the first pole piece, the second diaphragm layer comprises a second part exceeding the first pole piece, and the first part and the second part are adhered; the first diaphragm layer, the first pole piece and the second diaphragm layer form a composite part; the composite part comprises a first surface close to the center of the roll core and a second surface deviating from the center of the roll core; a plurality of convex parts are arranged on the composite part, and the convex parts are bent and protrude from the first surface to the second surface. The roll core provided by the invention has excellent obdurability, and can improve the problems of cracks and powder falling of the pole piece and easy stress thinning of the diaphragm.

The utility model relates to the technical field of audio equipment, and discloses an ear clamping type earphone, which comprises a first ear clamping part, a second ear clamping part and a connecting part, wherein a loudspeaker is arranged in the first ear clamping part; the connecting part is connected with the first clamping lug part and the second clamping lug part and comprises a first arm beam and a second arm beam which are arranged side by side, and the first arm beam and the second arm beam are bent and extend in the direction from the first clamping lug part to the second clamping lug part; in the wearing state, the first ear clamping part is located in the ear cavity, the second ear clamping part is located on the rear side of the ear part, and the first ear clamping part and the second ear clamping part clamp the ear part together. According to the embodiment of the invention, the ear clip structure of the double-arm beam is formed by the first arm beam and the second arm beam, and the double-arm beam can realize mutual compensation of clamping force in a wearing state to achieve better elastic deformation capability, so that the relatively stable clamping performance can be kept even under the long-term or excessive opening use condition, and the wearing stability can be improved.

The utility model relates to a rubber tapping equipment technical field, especially in kind of tree -hugging guide rail for rubber tapping machine. The prior art has solved the problem of unstable adhesion limit, big feeding resistance and inadaptability of working condition and easy to wear and tear and breakage of insufficient elasticity of tree -hugging guide rail caused by irregular surface of the trunk. Including: guide rail body, the arc structure of adapting the circumference of rubber tree, the tooth, the tooth is along the outer periphery of guide rail body setting, is used for with the gear of rubber tapping machine drive part engages, realizes the circumferential feeding movement of guide rail, limiting portion, limiting portion is along the inner periphery of guide rail body interval distribution, limiting portion forms and protrudes the protruding piece of the direction of rubber tree by guide rail body, and the protruding piece is used for with rubber tree surface abutment limit, top retreats the boss, top retreats the boss setting in adjacent limiting portion between, is used for pushing the irregular recess of tree body. Have realized "stable adhesion, smooth feeding, self -adaptation regulation's " effect.

The invention relates to a test probe arrangement (1) for making electrical contact of, in particular, multi-pole contacts, comprising a carrier part (2) having at least one guide opening (4), in which the test probe is mounted in a longitudinally displaceable manner, and comprising at least one test probe (5), the test probe (5) having a cylindrical housing (6), one or more, in particular pin-shaped contact elements (7) are arranged in the housing, each having a contact end (8) for contacting a contact piece, the housing (6) having a guide section (11) movably mounted in the guide opening (4) and a contact section (9) spaced apart from the guide section, and the contact end (8) being assigned to the contact section (9), wherein a spring element (810) is preloaded between the contact section (9) and the carrier part (2) and the spring element (810) adjoins the guide section (11) on the housing (6), an axial stop (12) is formed on the side of the carrier part (2) facing away from the spring element (10), which axial stop interacts with the carrier part (2) against the spring force of the spring element (10), wherein the maximum rotation and / or inclination angle of the test probe (5) relative to the carrier part (2) is defined by a guide opening (4) and a guide section (11), for which purpose the guide opening (4) and the guide section (11) each have a cross-section with at least one straight line, in particular a polygonal cross-section, and wherein the guide section (11) and the guide opening (4) are designed such that the test pin (5) can be pivoted in at least one sliding position relative to the carrier part (2). According to the invention, a transition section (17) is formed between the guide section (11) and the axial stop (12), said transition section (17) having a circular cross-section, the diameter of which on the one hand is at most as large as the minimum diagonal of the cross-section of the guide opening (4) and on the other hand is at most as large as the minimum diagonal of the cross-section of the axial stop (12). And on the other hand is smaller than the maximum diagonal of the cross section of the guide section (11) and larger than the minimum diagonal of the cross section of the guide section (11), so that the transition section (17) only partially radially protrudes beyond the guide section (11) when viewed from the periphery thereof.

This utility model relates to vehicles, specifically providing a differential, a vehicle transmission assembly, and a vehicle, aiming to solve the problem of excessive internal oil pressure affecting the sealing effect of the oil seal in the differential. To this end, the differential of this utility model includes: a support base with a first through hole, the inner wall of which has an annular groove; an input shaft; and an adjusting ring disposed within the annular groove, with a clearance fit between the adjusting ring and the inner wall of the annular groove, allowing oil to flow through the gap on both sides of the adjusting ring. This utility model, by setting an adjusting ring within the through hole of the differential support base and ensuring a clearance fit between it and the inner wall of the annular groove, achieves free flow of oil under normal operating conditions; when a large oil pressure difference occurs on both sides of the adjusting ring, the adjusting ring automatically adheres to the inner wall of the annular groove under pressure, promptly sealing the gap and effectively isolating the oil flow. This structure can dynamically adjust the internal oil pressure of the differential without changing the original arrangement.

This invention belongs to the field of foundation pit support technology, specifically relating to an adjustable foundation pit engineering support structure. It includes support units, each comprising a support base plate and a support frame plate. The support base plate rests against the foundation pit wall, and the support frame plate is connected to the support base plate via an adjustable support. A cross bracing device supports the support frame plates of two support units in opposite directions, and the two support units are mutually supported by the cross bracing device, with the adjustable support buffering the deformation pressure of the foundation pit wall. Support units in the same direction are spliced ​​together. This invention provides an adjustable foundation pit engineering support structure, employing an adjustable support structure that forms a recoverable elastic support system between the support base plate and the support frame plate. After pressure is unloaded, it can return to its original shape, improving the durability and reusability of the support structure.

The utility model discloses a fisheye needle applied to a welding-free terminal, which comprises a functional area, and the fisheye needle is sequentially divided into a terminal strength area, a retention area, a transition area, an insertion area and a pre-insertion area by the functional area along the insertion direction of the fisheye needle; the surface of the fisheye needle is concaved to form the inner concave pits, the inner concave pits span the transition area and the insertion area, the two inner concave pits extend in opposite directions, and a central rib sheet is formed between the bottom surfaces of the two inner concave pits; the width of the fisheye needle is gradually reduced from the transition area to the retention area; the width of the fisheye needle is gradually reduced from the insertion area to the pre-insertion area; and the width of the central rib sheet is gradually reduced from the center to the two ends. According to the fisheye needle, the design that the two oppositely-sunken inner pits are separated by the central rib sheet is adopted, so that the fisheye needle has both hardness and elasticity.

The utility model relates to a sun visor restorer, a sun visor assembly and an automobile. The sun visor restorer comprises a sun visor restorer rotating shaft, a sun visor framework body, a contact piece, a cam and an elastic piece, and the sun visor framework body rotates around the rotating shaft; the contact piece is movably installed on the sun shield framework body. The cam is installed on the rotating shaft, the cam is provided with a positioning working face and a reset working face which are used for abutting against the contact piece and are connected with each other, the reset working face sinks towards one side away from the contact piece, and the contact piece can be switched between the positioning working face and the reset working face; the elastic piece is used for driving the contact piece to abut against the cam. According to the technical scheme, when the contact piece moves to the positioning working face under the action of the elastic piece, the elastic potential energy is large at the moment, and the sun shield can be stably suspended at any adjusting angle within the adjusting range; and during upward resetting, the contact piece moves to the resetting working surface at a specific angle, and the elastic piece pushes the contact piece to continuously move on the resetting working surface, so that an automatic resetting function is realized.

The invention belongs to the technical field of umbrella-shaped vacuum ceramic tube shells, and particularly relates to a preparation process of an umbrella-shaped vacuum ceramic tube shell, which comprises the following steps: firstly, designing a die sleeve; the die sleeve is made of an organic elastic material, and corrugations are prefabricated on the inner circular surface of the die sleeve; the steel mold core is arranged in the mold sleeve, and a cavity area formed by the steel mold core and the mold sleeve is filled with aluminum oxide powder; covering a steel plug on the upper side of the alumina powder to form a to-be-pressed whole; the whole to be pressed is subjected to isostatic pressing forming, the die sleeve and the aluminum oxide powder are compressed and formed towards the center of the steel die core at the same time through the corrugated shape of an inner cavity of the die sleeve under the applied pressure, and a blank piece is formed; after isostatic pressing is finished, pressure relief is started, and the steel mold core, the blank piece and the mold sleeve rebound; and removing the steel plug, and taking out the formed aluminum oxide blank to obtain the umbrella-shaped vacuum ceramic tube shell. The problem that in existing machining, turning is needed, and the quality of finished products cannot be guaranteed is solved.

The invention discloses a high-precision six-degree-of-freedom platform adopting flexible hinges, and relates to the technical field of six-degree-of-freedom platforms, the high-precision six-degree-of-freedom platform comprises an experiment table, a fixed rod and a top platform, a magnetic encoder is installed on the fixed rod, a hinge part is arranged in the top platform, and the hinge part comprises two flexible hinges. And a hooke joint fixing seat is connected between the two flexible hinges. Through the arrangement of the magnetic encoder, the strain gauge and the hinge part, the flexible hinge can generate obvious elastic deformation under the action of torque, and can play a role of a hinge in a mechanical structure, so that the flexible hinge is fused into the top platform, and the mechanical structure is more flexible. The friction force between the rigid connecting block and the bearing and the friction force between the bearing and the pin shaft can be converted into elastic deformation in the flexible hinge, so that the influence caused by the friction force of all parts is isolated, energy storage and conversion are facilitated, and the driving and transmission efficiency can be improved; the positioning precision of the system can be effectively improved, and the positioning influence caused by friction is isolated.

The invention provides a Reynolds protection pad filling auxiliary device for hydraulic engineering and a method thereof, and belongs to the technical field of hydraulic engineering, the Reynolds protection pad filling auxiliary device comprises a cart and a buffer assembly, four symmetrical elastic telescopic rods are fixed to the cart, a bottom plate is fixed to the tops of the elastic telescopic rods, a rectangular groove is formed in the upper surface of the bottom plate, and the buffer assembly is arranged in the rectangular groove; a rectangular groove is formed in the bottom plate, a fixing frame is slidably connected into the rectangular groove, the buffering assembly comprises four connecting rods rotationally connected to the bottom plate and a buffering box fixed to the cart, a movable rod is slidably connected into the buffering box, a plurality of baffles are rotationally connected to the side wall of the buffering box through torsional springs, and a fixing plate is fixedly connected to the movable rod. According to the device, the good buffering effect is achieved, the situation that stones and gabions are impacted multiple times due to the fact that the stones are toggled up can be effectively avoided, the service life of the device is prolonged, splashing dust can be adsorbed during filling, and manual leveling operation is not needed after filling.

This utility model relates to the field of electronic control device technology, specifically to a relay. The relay includes a magnetic rotating component and an auxiliary moving contact. The magnetic rotating component has an assembly structure, which includes a connecting section and a limiting part. One end of the connecting section is connected to the magnetic rotating component, and the other end is connected to the limiting part, with a gap between the limiting part and the magnetic rotating component. The auxiliary moving contact has an assembly hole, including a first through hole and a second through hole, which communicate with each other. The limiting part can pass through the first through hole, allowing the connecting section to move relative to the auxiliary moving contact in a direction away from the first through hole to the second through hole, and confining the auxiliary moving contact between the limiting part and the magnetic rotating component. The assembly process is simple and improves assembly efficiency.

The utility model discloses a kind of silver-plated ring package's FFC flat cable, belong to FFC flat cable technical field.This kind of silver-plated ring package's FFC flat cable, including flat cable body and prevent loss subassembly, flat cable body includes upper insulating layer, the lower side of upper insulating layer is provided with lower insulating layer, wire rod is installed between upper insulating layer and lower insulating layer, the inside of the two ends of upper insulating layer and lower insulating layer is all set with slot, the inside of four slots is all provided with silver-plated layer;Prevent loss subassembly includes top bellow and bottom bellow, top bellow is set in the top surface of upper insulating layer, bottom bellow is set in the bottom surface of lower insulating layer, top bellow and bottom bellow are all in organ style, top bellow and bottom bellow are PTFE material or PP material, the maximum tensile length of top bellow and bottom bellow is greater than the length of flat cable body, the utility model can effectively prevent bending and prevent loss protection to FFC flat cable, with higher practical value.

The invention relates to the technical field of lithium ion storage battery processing, and provides an anti-deviation conveying device for processing a lithium ion storage battery, the anti-deviation conveying device comprises a base, a conveying belt is mounted at the top end of the base, the conveying belt is connected with the output end of a driving motor through a transmission assembly, and guide plates are mounted at the two ends of the top of the conveying belt; a guide plate is arranged on the base, the guide plate is connected with an adjusting mechanism, vertical plates are installed at the two ends of the top of the base, a deviation rectifying mechanism is arranged on the vertical plates, and the deviation rectifying mechanism comprises a support installed on the vertical plates and a laser displacement sensor installed on the support. According to the lithium ion storage battery deviation correcting device, the laser displacement sensor is arranged, the position of a lithium ion storage battery is detected through the laser displacement sensor, information is transmitted to the single-chip microcomputer, during deviation, the single-chip microcomputer processes the information and transmits the information to the fixed motor, the fixed motor is started, the threaded rod rotates, and the movable frame drives the deviation correcting plate to move; and the aim of rectifying the deviation of the lithium ion storage battery is fulfilled.

The utility model discloses a power terminal and power connector, this power terminal includes main part and integrative forming in the first contact arm and second contact arm of main part both sides and the distribution of facing, the first contact arm and second contact arm between form have clamping guide space, the main part is flat, the first contact arm is from the side of main part and extends and is bent to form to the upside, the second contact arm is from the other side of main part and extends and is bent to form to the upside. The utility model sets up the main part of power terminal into flat, and the root of first contact arm and second contact arm respectively extends to the both sides of main part, makes the force arm support point distribution of first contact arm and second contact arm in the both sides of main part, can make the force arm of first contact arm and second contact arm be long enough to have better elastic deformation ability under the condition that the total height of power terminal is limited, satisfies the customer use requirement.

The utility model discloses a kind of high sealing property electric meter box, including box and door, box is provided with container groove, door is movably arranged on box, lock body structure is arranged between door and box, the circumferential direction of the inner wall of container groove is provided with baffle, baffle is close to the opening of container groove and is provided with the circumferential direction of sealing edge on baffle, sealing edge inner wall, baffle top wall and the inner wall of container groove opening are combined to form sealing groove, the circumferential direction of the inner wall of door is provided with plug for being placed into sealing groove when door cover is set on box, the clearance cooperation of the outer peripheral wall of plug and the inner wall of container groove opening forms sealing gap, sealing element is arranged in sealing gap, pre-tightening piece for being linked with sealing element to apply pre-tightening force to sealing element to make sealing element and plug seal cooperation is provided on box.The utility model solves the problem that the sealing strength between the door of traditional electric meter box and box is low, which leads to the invasion of dust, liquid and other impurities from outside into the box, causing erosion of electronic components.

The utility model relates to the technical field of conveying and supporting devices, in particular to an extrusion conveying and supporting device based on an MPP cable protection pipe, which comprises a supporting frame, a V-shaped fixing seat is fixedly connected to the top end of the supporting frame, and supporting and conveying assemblies are fixedly welded to two sides of the V-shaped fixing seat; the supporting conveying assembly comprises a supporting cylinder, supporting ribs are fixedly connected to the inner side of the supporting cylinder, a spherical seat is fixedly connected to the inner sides of the supporting ribs, a supporting ball head is rotationally connected to the center of the top of the spherical seat, a cleaning mechanism is fixedly connected to the outer side of the top of the spherical seat, and the surface of the cleaning mechanism is sleeved with a contraction ring mechanism. According to the MPP cable protection pipe conveying device, through the arrangement of the supporting conveying assembly, the cleaning mechanism and the contraction ring mechanism, sharp chippings on the surface of a supporting ball head can be effectively cleaned, abrasion is reduced, the service life of the device is prolonged, and stability and accuracy of an MPP cable protection pipe in the conveying process are guaranteed.

The utility model belongs to the technical field of rearview mirrors, and particularly relates to a driving assembly of a rearview mirror folding mechanism with a collision protection function, a foldable connecting piece comprises a supporting sleeve, a rotating disc, a connecting part, an elastic connecting piece and an elastic reset piece, the rotating disc rotationally installed in the supporting sleeve is fixed to the output end of the driving motor, the connecting part is fixed to the edge of the rotating disc, the elastic connecting piece is arranged between the connecting part and the rearview mirror body, and the elastic reset piece is fixed between the rearview mirror body and the rotating disc. Therefore, the elastic connecting piece can be conveniently connected with the rearview mirror body and the rearview mirror base, the elastic connecting piece can be conveniently separated after the rearview mirror body is subjected to overlarge external force, and the situation that the driving assembly used for driving the rearview mirror body to rotate is damaged after the rearview mirror body is impacted by the external force is avoided; therefore, the driving assembly has the collision protection performance.

The anti-cracking all-steel movable floor veneer comprises a wear-resisting layer, a supporting layer, a buffering layer and an adhesive layer which are sequentially arranged from top to bottom, the buffering layer is made of elastic materials, a plurality of meshes are formed in the buffering layer, the supporting layer is fixed to the upper side face of the buffering layer, and the adhesive layer is fixed to the supporting layer. The adhesive layer is provided with meshes identical to the buffer layer and is correspondingly attached and fixed to the lower side face of the buffer layer, and the lower end of the adhesive layer is attached and fixed to the floor. The buffering layer and the adhesive layer which are in the shape of the screen plate are arranged between the supporting layer and the floor, so that the buffering layer and the adhesive layer can generate elastic deformation to absorb stress between the supporting layer and the floor, and the cracking risk of the supporting layer and the wear-resistant layer is reduced.