125results about How to "Close contact" patented technology

The application provides a high-nickel ternary material modification method and a high-nickel positive electrode material with a nitrogen-oxygen coating layer, and relates to the field of lithium ion batteries. In the high-nickel ternary material, surface lattice oxygen is gradually replaced by nitrogen atoms in a high-temperature long-time calcination process in a nitrogen-oxygen mixed atmosphere, so that a nitrogen-oxygen layer is formed on the surface, which is beneficial to the delocalization of electrons, thereby endowing the material with excellent electronic conductivity; meanwhile, the presence of the nitrogen-oxygen layer inhibits the transformation of the surface layer structure into a rock salt phase structure, which is beneficial to realizing efficient ion transport. The formation of the nitrogen-oxygen layer on the surface of the high-nickel ternary material can simultaneously improve the electronic and ionic conduction of the surface of the high-nickel positive electrode material, inhibit the interface side reaction, relieve the volume change, and thereby improve the cycle stability of the battery.

This invention relates to the field of solid-state battery technology, and particularly to a composite solid-state electrolyte material, its preparation method, and its application. The composite solid-state electrolyte material contains a crystalline phase substance with the general chemical formula: B%A a RE b X 1 c D g +C%A d M e X 2 f D h Where A represents charge carriers; RE represents rare earth elements; M represents metallic elements; X represents... 1 X 2 D is a halide anion; A is an anion doping element or group; a RE b X 1 c D g and A d M e X 2 f D h It is a crystalline phase substance; B% is A a RE b X 1 c D g The mass fraction of the composite solid electrolyte material; C% is A d M e X 2 f D h The mass fraction of the composite solid electrolyte material is defined as follows: 0 ≤ a ≤ 3, 0 < b ≤ 1, 0.5 < c ≤ 12, 0 < d ≤ 5, 0 < e ≤ 2, 1 < f ≤ 20, 0 ≤ g ≤ 4, 0 ≤ h ≤ 5; 85 < B + C < 98, 10% < B% ≤ 85%; 10% < C% ≤ 85%, 0.2 ≤ C / B ≤ 10. The composite solid electrolyte material of this invention includes crystalline and amorphous phase components, giving it high ionic conductivity. The use of moisture-resistant non-metallic halide components instead of traditional halides and oxyhalides in the raw materials also provides it with good air stability.

The application discloses a preparation method of a graphene / hexagonal boron nitride heterojunction. The target substrate is subjected to cleaning treatment, and then the surface of the cleaned target substrate is changed into hydrophilicity, so that the film can be well laid on the surface of the substrate, and the wrinkles are reduced. A layer of hexagonal boron nitride is arranged on the surface of the hydrophilic target substrate. A layer of PMMA is spin-coated on the surface of the graphene film to be transferred, and then the graphene film is floated in deionized water. Under the surface force of the deionized water, the graphene film can be stretched based on the PMMA. Then, the target substrate with the surface provided with the hexagonal boron nitride is used to be combined with the graphene film with the PMMA layer spin-coated on the surface in the deionized water, so that the target substrate and the graphene film are combined flatly. Then, drying and heating are carried out at a stepped temperature, the distance between the substrate and the sample is shortened, and the crack area is reduced. Finally, through annealing treatment, not only the PMMA residue is reduced, but also the film can be more closely contacted with the substrate.

The utility model provides a walking type movable hopper for loading and unloading, and belongs to the technical field of walking type hoppers. Comprising a hollow column, a lifting column is slidably inserted into the bottom of the hollow column, a powerful suction cup is arranged at the bottom of the lifting column, transverse plates are symmetrically arranged on the lower portions of the two side walls of the lifting column, and the ends, away from the lifting column, of the tops of the transverse plates are in threaded connection with screws; the bottom of the screw rod is rotationally connected with a supporting disc arranged below the transverse plate. Rapid switching between the moving state and the fixed state can be achieved through the limiting supporting assembly, in the fixed state, the lifting column is released to the set height through the locking bolt, the powerful suction cup is firmly adsorbed to the ground and matched with the moving wheel provided with the brake pad to form double fixing, and meanwhile the hand wheel is operated to drive the screw to press the supporting disc downwards. And the non-slip mat is in close contact with the ground, so that the device can be limited and prevented from deviating and moving during loading and unloading, and the unloading effect is prevented from being influenced.

The utility model relates to nitrogen seal valve technical field, concretely for a kind of high-performance stable opening and closing nitrogen seal valve, including valve body, valve cover, valve rod, valve seat, valve flap and actuating mechanism, valve rod includes upper valve rod and lower valve rod, by setting up middle cavity sealing mechanism in upper and lower valve rod connecting part, double sealing guarantee is provided for actuating mechanism, when the sliding seal of valve rod and actuating mechanism appears wear and causes sealing failure, sealing diaphragm still can guarantee sealing effect, make lower membrane chamber be in stable operation state, guarantee the normal operation of actuating mechanism;Lower spring is set at bottom cover, by the collaborative work of lower spring and upper spring, make valve rod produce more linear, more accurate displacement response to slight pressure change, to improve overall control precision, make valve operation more stable.

This utility model discloses a testing device for quick replacement of composite electrodes, relating to the field of composite electrode technology. It includes a workbench with a detection mechanism in the center. The detection mechanism comprises a fixed plate, a test cylinder, and a limiting plate. The surface of the fixed plate is provided with circumferentially arranged fixing mechanisms, each including a clamping frame and a detection connector. A connecting rod and a sliding rod are fixedly connected to the surface of the clamping frame, and a locking block is engaged at the top of the connecting rod. This testing device facilitates quick replacement of composite electrodes by positioning and fixing the composite electrode using the fixed plate and limiting plate, testing the composite electrode using the test cylinder, improving the convenience of composite electrode testing, enhancing the stability of the electrical connection between the detection connector and the composite electrode's contact point using the connecting rod and limiting plate, and analyzing and transmitting test data from the composite electrode through the detection connector, thus improving the accuracy of composite electrode testing.

The utility model discloses lithium battery mixer rotary inner tube sealing structure relates to sealing structure technical field, including the inner tube body of setting in the inner wall of outer tube, the top of outer tube is provided with the sealing cover, the inner wall of outer tube is provided with the annular plate, in the utility model, through setting up annular plate in the inner wall of outer tube, and install first rotary axle sealing piece with inner tube body surface contact, can effectively prevent the dust, liquid and so on produced in the mixing process material leakage to the outside of outer tube, has guaranteed the clean and safety of mixing environment, has reduced raw material waste and environmental pollution, and first rotary axle sealing piece surface is provided with helical spring, and helical spring can provide certain elasticity, makes sealing piece always with inner tube body surface keep close contact, even in the case where sealing piece has certain abrasion, can guarantee better sealing effect, prolongs the service life of sealing piece, and the maintenance cost of equipment is reduced.

This invention discloses a bridge pot bearing and control system based on system conversion. A first bearing body and a second bearing body are stacked from top to bottom. The first bearing body has a first mounting plate, and an adjustment component is installed below the first mounting plate. The second bearing body has a second mounting plate, and a test component is installed on the second mounting plate. The test component connects with the adjustment component. While performing pressure testing, the test component, in conjunction with the adjustment component, enables the conversion between three states: fixed pot bearing, unidirectional movable pot bearing, and bidirectional movable pot bearing. This invention monitors the stress on the bearing in real time, calculates the bridge shear force based on the reaction force, and derives the bridge shear force amplification factor under dynamic loads, thus improving bridge design methods and making bridge design safer and more reliable. It can realize the functions of a fixed bearing, a unidirectional movable bearing, or a bidirectional movable bearing, and achieve mutual conversion between bearing types.

The utility model discloses a paperboard transmission device is used in packing carton processing, include: conveyer, the inside rotation of conveyer is connected with conveyer belt, the top right -hand member fixed connection of conveyer has fixed frame, auxiliary assembly, the auxiliary assembly includes screw rod. The utility model discloses, through pressing air bag can make outside air through telescopic pipe from the air inlet pipe into the inside of sleeve, when the gas in the sleeve enters the air pressure and rises, the piston rod will be subjected to the reverse thrust and make the sliding frame push the limit wheel always with the outside elastic of paperboard and fit, further can make paperboard and conveyer belt between the close contact and improve the friction, realize the purpose of stable conveying can also avoid the limit wheel and paperboard rigidly and fit, improve the protection of paperboard, and through the rotation screw rod can make it along the internal thread of fixed frame and lift, further can realize the height of adjusting limit wheel, finally realize the flexible limit of paperboard of different thickness, the effect of stable conveying.

The application relates to a rectangular furnace bottom structure in the technical field of pyrometallurgical furnace equipment, and in particular to a rectangular furnace bottom structure. The rectangular furnace bottom structure comprises, from bottom to top, a heat preservation layer, a ramming layer, a safety layer and a working layer in sequence. The lower half of the heat preservation layer is filled horizontally, the upper half of the heat preservation layer is a structure symmetrically retreating to both sides, forming an arc-shaped surface, an arc-shaped ramming layer with a high middle and a low both ends is filled above the heat preservation layer, the safety layer and the working layer are sequentially built on the ramming layer, the upper surface of the working layer is arc-shaped with a high middle and a low both ends, a molten metal copper jacket is arranged on the adjacent furnace wall of the safety layer and the working layer, and a molten metal outlet is arranged in the molten metal copper jacket. The straight surface of the furnace bottom structure is changed into an arc surface, the structural strength and stability are high, the heat preservation layer and the working layer are closely contacted, the molten body leakage is prevented, the brick body expansion can be absorbed, the construction is convenient, the cost is low, and the rectangular furnace bottom structure is suitable for furnaces of different sizes.

This utility model relates to the field of lawn laying technology, and more particularly to a lawn laying device, including a supporting base plate. A traction head is provided on one side of the supporting base plate, a fixed bracket is fixedly connected to the top surface of the supporting base plate, a movable wheel is fixedly connected to the bottom surface of the supporting base plate near the traction head, a guide roller is provided on the other side of the supporting base plate, a rolling frame is fixedly connected to the bottom surface of the supporting base plate near the guide roller, and a rolling roller is provided on the side of the rolling frame. This utility model achieves stable feeding of the lawn roll by engaging and fixing the supporting shaft with the limiting teeth. The elasticity of the limiting spring keeps the limiting roller continuously pressing against the lawn roll to prevent loosening. During the laying process, the rolling roller compacts the lawn to ensure full contact with the ground. Simultaneously, automatic spraying is achieved through the diversion pipe and nozzles to promote the rooting of new lawn roots, effectively improving laying efficiency and quality, preventing lawn rolls from loosening, and ensuring a high survival rate.

This utility model discloses an anchoring structure for a gantry crane, including a base, a hydraulic anchoring mechanism, an anchor plate clamping mechanism, and a clamping auxiliary mechanism. The hydraulic anchoring mechanism includes a hydraulic cylinder, a support arm, a connecting frame, a rotating frame, a rotating rod, and an anchoring plate. The anchor plate clamping mechanism includes a clamping pipe, a clamping rod, a clamping groove, a transverse rod, a slope plate, a rotating block, and a slope groove. Hydraulic control provides strong support, ensuring the anchoring plate can make tight contact with the ground, thus improving the crane's stability. The clamping pipe, clamping rod, and other structures enable the anchoring plate to connect to the ground quickly and stably, and can be flexibly adjusted under different ground conditions. The design of the clamping mechanism improves the accuracy and efficiency of the clamping process. Components such as threaded rings and directional rings reduce friction between components, ensuring smooth operation of the clamping mechanism and enhancing the durability of the entire anchoring system.

The application provides a pole piece manufacturing system, a pole piece manufacturing method and a secondary battery. The pole piece manufacturing system comprises a piece manufacturing mechanism, a vibration mechanism and a rolling mechanism. The piece manufacturing mechanism is configured to form a pre-drying pole piece. The vibration mechanism is arranged downstream of the piece manufacturing mechanism. The vibration mechanism is configured to perform vibration treatment on the pre-drying pole piece. The rolling mechanism is arranged downstream of the vibration mechanism. The rolling mechanism is configured to perform rolling on the pre-drying pole piece after the vibration treatment. The application effectively improves the packing density of the particles in the pre-drying pole piece through the vibration treatment on the pre-drying pole piece, thereby effectively improving the ultimate compaction density of the pole piece.

The utility model discloses a processing device for a surface decoration material coated with a wood veneer, which comprises a fixed box, a clamping plate arranged above the fixed box, a coating head arranged above the clamping plate, and a cleaning device arranged at the bottom of the inner wall of the fixed box, the turnover device is mounted on the outer wall of the clamping plate; and the smearing device is mounted on the outer wall of the coating head. The utility model relates to the technical field of wood veneer coating, through the cooperation of the cleaning belt, the driving wheel and the electric sliding block, the driving wheel is used for driving the cleaning belt to rotate to clean the surface of a wood veneer plate, and through the cooperation of the electric sliding rod and the electric sliding block, the whole wood veneer plate is uniform in thickness during cleaning and is directly coated after being cleaned. And cleaning and spraying are integrated, and the problem that the working efficiency is reduced due to the fact that a worker controls multiple devices to treat wood boards is solved.

This invention discloses a method for reverse material transport via a feed belt for ore powder silos across a grinding and flotation workshop. It relates to the field of feed belt technology for ore powder silos and includes a main body comprising a first conveyor belt and a second conveyor belt. The first conveyor belt is located between the bottom discharge end of the ore powder silo and the grinding and flotation workshop. A separator is installed at the end of the first conveyor belt that passes through the grinding and flotation workshop. Through the coordinated arrangement of the first conveyor belt, the second conveyor belt, and the separator, an integrated connection is achieved between the forward transport of ore powder and the reverse transport of substandard ore powder. The first conveyor belt ensures stable forward transport from the ore powder silo to the grinding and flotation workshop. The separator separates substandard ore powder from qualified material. The second conveyor belt then transports the separated substandard ore powder back to the ore powder silo. This automatic separation and reverse transport of substandard ore powder can be completed without manual intervention, avoiding production stoppages caused by the accumulation of substandard material and ensuring the convenience of ore powder allocation and reprocessing.

An air heat exchanger and its manufacturing method are disclosed. The air heat exchanger includes a honeycomb panel and heat exchange tubes. The honeycomb panel includes a plurality of pores extending along a first direction. The heat exchange tubes include an inlet pipe, an outlet pipe, and heat exchange tubes connected in series or parallel between the inlet pipe and the outlet pipe. The heat exchange tubes are disposed within the honeycomb panel and extend along a second direction perpendicular to the first direction. The air heat exchanger of this invention comprises a honeycomb panel and heat exchange tubes, with some heat exchange tubes disposed within the honeycomb panel and in close contact with it. The honeycomb panel provides a large heat exchange area per unit volume. Combined with the vertical through-hole design of the heat exchange tubes, an extremely short heat conduction path is created, enabling the heat exchanger to reduce its volume by more than 30% compared to traditional finned tube heat exchangers for the same heat exchange capacity, achieving true high efficiency and compactness.

The utility model discloses a kind of multi-cavity injection molding components for motor heat dissipation, including motor component one and motor component two, and the outer surface of motor component one and motor component two is equipped with heat dissipation fin assembly. The utility model distributes multiple ventilation chambers in motor component one and motor component two, and three-dimensional heat dissipation path is formed by multi-cavity design, avoids heat concentration by partition design, increases heat dissipation area, motor component one and motor component two are integrally injection molded using carbon fiber composite material, reduce production cost and reduce weight, the positioning boss set ensures close contact with motor, accelerates heat dissipation, the heat conduction plate set on the outside of motor component one and motor component two penetrates ventilation chamber, can quickly conduct the heat of motor heat source to each cavity, avoid local overheating, and the heat dissipation fin set increases surface area to improve heat dissipation efficiency.

The utility model relates to a kind of external heat dissipation device for light storage product, including fin, fin is connected with heat dissipation substrate, and multiple fixing holes and multiple placement grooves are equipped on heat dissipation substrate;Heat dissipation substrate edge is equipped with sealing groove;Sealing groove is installed with sealing rubber strip.By the device, heat dissipation substrate is fixed to product using screw, and double-fixed mode of sealing groove and sealing rubber strip is used, and it is convenient, stable to install and fix;It is convenient and stable to install: the fixing hole of the radiator of reasonable layout, so that the installation process of radiator on equipment is simple and easy to operate, and it is firm and reliable after installation, and can adapt to the installation needs of different types of equipment;Sealing rubber strip is placed in radiator sealing groove, and radiator is fixed in the corresponding position of product shell using screw through radiator surface mounting hole, the installation of radiator is completed, so that it is put into use for equipment heat dissipation.

This utility model discloses a fastening device for precast PC components, relating to the field of building industry technology. It includes two sets of PC component bodies. Each PC component body has a pair of symmetrically arranged mounting seats fixedly connected to one end of its outer wall, and a pair of symmetrically arranged fixing blocks fixedly connected to the other end of its outer wall. Each fixing block has an mounting block fixedly connected to its other end. Both the fixing blocks and mounting blocks are aligned with their corresponding mounting seats on the same horizontal line. A snap-fit ​​mechanism and a fastening mechanism are provided between the fixing blocks and the mounting seats. The pre-snap-fit ​​ensures precise alignment of the mounting blocks and fixing blocks of the two sets of PC component bodies, providing a precise positioning basis for subsequent screw fixing. This avoids misalignment or instability during final fixing, ensuring the stability and robustness of the overall structure. Through the pre-snap-fit, installers no longer need to manually adjust and align the PC components, reducing the complexity of manual operation.

The utility model provides a kind of track inertial navigation measurement system, including track detection car, two wireless digital display displacement meters are symmetrically arranged and are installed in the downside of track detection car horizontal axis by connecting seat, and the mobile measuring end of one wireless digital display displacement meter is slidably connected to the downside of track detection car by sliding piece, the bottom of sliding piece is connected with first rolling piece, and the mobile measuring end of another wireless digital display displacement meter is connected with second rolling piece, and first rolling piece and second rolling piece are respectively rollingly connected to the inside standard track gauge of left and right tracks, and automatic leveling base is connected to the upper side of middle part of track detection car by fixing part and is built-in with multi-axis sensor.The utility model can directly measure track gauge value by two wireless digital display displacement meters, three-dimensional coordinate measurement component can obtain the three-dimensional coordinates of the center of automatic leveling base, then according to the azimuth angle, inclination and track gauge value measured by multi-axis sensor, the three-dimensional coordinate values of left and right tracks are calculated, so that the space attitude of track can be quickly measured for the initial adjustment of track.

The utility model relates to a kind of fire-resistant sodium-calcium glass heat-insulating frame positioning structure, belong to fireproof glass mounting structure technical field, including frame body and the glass and fire-retardant adhesive tape embedded in the frame body inside, the frame body inside is equipped with mounting groove and sliding mouth, the mounting groove inside is provided with the positioning structure that fixes glass;The positioning structure is composed of positioning member and adjusting member, the positioning member includes first clamping plate and second clamping plate, the first clamping plate side is fixed with the first top block that is in abutment with glass, the second clamping plate side is fixed with the second top block that is in abutment with glass.The fire-resistant sodium-calcium glass heat-insulating frame positioning structure, by adjusting bidirectional screw rod, can easily adapt to glass of different sizes and shapes, improve the flexibility and versatility of installation, the close contact of first clamping plate and second clamping plate with glass, and the use of fire-retardant adhesive tape, provide good stability and heat insulation performance.

This utility model relates to the field of transmission shaft press fitting technology, and discloses a transmission shaft press fitting with an elastic positioning structure, including a column, two limiting plates, a limiting pin, a cylindrical fork, and a transmission shaft. The transmission shaft is inserted into the column, and the top surface of the column is connected to the two limiting plates. The cylindrical fork is disposed between the two limiting plates and inserted into the top surface of the column. The cylindrical fork has an ear hole, and the limiting pin is inserted into the positioning hole and the ear hole of the limiting plate in sequence. This utility model effectively eliminates the phase angle error caused by the welding angle deviation of the anti-rotation plate in the traditional positioning method by precisely matching the spline positioning sleeve in the elastic positioning component with the external spline of the transmission shaft, greatly improving the phase angle accuracy of the transmission shaft and cylindrical fork assembly. The design of the buffer spring ensures that the spline positioning sleeve maintains close contact with the external spline of the transmission shaft during the press fitting process, while providing a certain buffering force, reducing the impact and vibration during the press fitting process, and enhancing the stability of the assembly.

Disclosed are a solid-state electrolyte-lithium assembly, a preparation method thereof, and a solid-state lithium battery comprising the same. The solid-state electrolyte-lithium assembly comprises: a solid-state electrolyte having a first major surface and an opposite second major surface, wherein at least the first major surface has a plurality of uniformly sized holes arranged in an array form, the spacing between adjacent holes is no more than 10 microns, the distribution density of the holes is 10 5 ‑10 9 cm 2 −1, and the depth of the holes does not penetrate to the opposite surface; and a layer of metallic lithium or lithium alloy compounded on the first major surface, the metallic lithium or lithium alloy filling the holes on the first major surface and forming a layer with a thickness of 1-100 microns on the first major surface. The solid-state electrolyte-lithium assembly of the present application can greatly reduce the interface impedance between the solid-state electrolyte and the metallic lithium.

This utility model relates to the field of wireless earphone technology, specifically to a quick-plug wireless earphone charging PIN pin structure. It mainly includes an outer cavity, with a piston cylinder connected to the inner side of the outer cavity, and a PIN pin body slidably connected to the inner side of the piston cylinder. The insertion / removal protection component includes a trapezoidal retaining ring, with a guide rod disposed on the inner side of the trapezoidal retaining ring, and a PIN pin tip disposed at the front end of the guide rod. The installation adjustment component includes an installation ring. This quick-plug wireless earphone charging PIN pin structure achieves unidirectional position adjustment by setting a foolproof structure on the inner side of the PIN pin body. The elastic connection of the conductive spring improves the buffer protection performance and increases the contact range. The elastic compression also ensures a tighter contact during charging. The dispersed PIN pin tips at the end of the PIN pin body increase the probability of contact with the earphone's metal contacts, reduce the probability of poor charging contact, and improve the efficiency of the PIN pin structure.

This invention relates to an ultra-thin flooring for cold storage with an internal insulation structure and its construction method. The construction method includes the following specific steps: S1: Casting a reinforced concrete floor slab; S2: Sequentially laying a vapor barrier layer, an insulation layer, a waterproof and breathable layer, and a geotextile layer on the reinforced concrete floor slab; S3: Pouring a concrete surface layer on the waterproof and breathable layer. The advantages of this invention are its simple process and convenient construction. Addressing the characteristics of large-area ultra-thin flooring in large concrete cold storage structures—prone to cracking, peeling, and poor flatness—this invention develops an internal insulation structure for ultra-thin cold storage room flooring and its construction method, solving the technical problems of difficult repair after cracking of ultra-thin flooring in low-temperature cold storage, impacting cold storage operation, and low construction efficiency.

The utility model relates to the technical field of clamp, disclose a quick clamping fixture with self -locking function, including base, the top of base is provided with clamping mechanism, the top of base is provided with self -locking mechanism, the clamping mechanism includes fixed block a, the inside sliding connection of fixed block a has push rod, the top left side fixed connection of push rod has fixed block b, the outside both sides fixed connection of fixed block a has linkage swing arm rod, the inner wall both sides fixed connection of linkage swing arm rod has hinged pin axle ring, the top of hinged pin axle ring is provided with adjusting assembly. In the utility model, through manual wrenching operation handle can realize the clamping and loosening of work piece, and the action is simple and direct, can let the operator fast on hand, effectively reduced the operation threshold, promoted the convenience of operation, ensured that work piece was not prone to displacement in the processing or processing process, and the precision and stability of operation were guaranteed.

The utility model relates to the technical field of assembly type building construction, concretely is a kind of assembly type building wall body anti-seismic connecting node structure, including pedestal and the L-shaped structure on the pedestal, and the L-shaped structure is connected with the damper between the pedestal;The bottom end of the pedestal is provided with embedded part, the L-shaped structure includes horizontal L-shaped plate and vertical L-shaped plate that is vertically arranged on the horizontal L-shaped plate;The vertical L-shaped plate includes two fixed plates connected in right angle, the outside of two the fixed plate is respectively fixed with assembly box, each the fixed plate is all provided with the threaded hole that is connected with the inside of assembly box, threaded column is arranged on the threaded hole, and the threaded column is located on the end in the inside of assembly box and is equipped with handle and gear, the inside of assembly box is also provided with lifting plate, locking mechanism, damping spring and guide mechanism. Through the energy dissipation effect of damper, wall body can consume energy by displacement and deformation in earthquake, rather than directly transmitting rigid impact.

The utility model discloses an advertisement design drawing equipment relates to advertisement drawing technical field, including the bottom plate, the surface symmetry of bottom plate is provided with adjusting assembly, and the upper portion of adjusting assembly is provided with support assembly, and one end of fixed plate is provided with fixed component, the utility model discloses one end of fixed plate is provided with fixed component, and the drawing board is firmly fixed through friction and wedge self -lock effect, and the height of fixed plate is adjusted through the telescopic link, ensures that the card board is always closely contacted with the drawing board surface, makes the card board can be according to the flatness of drawing board surface self -adaptation deformation, reduces the local gap, promotes the evenness of overall clamping, ensures that the elasticity always acts along the vertical direction of card board, avoids the fixed loosening due to the elasticity dispersion, and draws the operation to the inboard of fixed frame with drawing board fixed, thereby not only can avoid the drawing board in the process of using the loose situation, and can improve the applicability of device to a certain extent.

The utility model relates to mechanical engineering technical field discloses a gear structure with self -adaptation floating function, including input cover, the outer wall of input cover is installed with floating mechanism, the outer wall detachable connection of input cover has the fixing frame, the inner wall of fixing frame is installed with sealing mechanism, the inner wall of fixing frame all screw thread connection has a plurality of bolts, the inner wall of fixing frame all is set up a plurality of thread holes, the floating mechanism includes gear shaft subassembly, the inner wall sliding connection of gear shaft subassembly has a small cover, the outer wall sliding connection of small cover has a medium cover, in the utility model, the gap between input gear and medium cover is reserved, provides the self -adaptation space for motor shaft to extend into, offsets the processing deviation, the motor shaft contact medium cover right end surface will move left after, this structure increases the adaptability of motor shaft and input component, simple structure, obvious noise reduction.