25results about How to "Embedded firmly" patented technology

The invention discloses a three-dimensional grid robust watermarking method and system based on spherical coordinate statistical characteristics, and the method comprises a watermark embedding stage and a watermark extraction stage, in the watermark embedding stage, three-dimensional grid vertexes are converted to a spherical coordinate space, a stable equivalent binning structure is constructed, and statistical characteristics are extracted, so that the three-dimensional grid robust watermarking is realized. And frequency domain transformation is carried out. In combination with a quantization domain binary mapping mode of quantization index modulation, watermark information is embedded into a frequency domain coefficient, and then a three-dimensional model carrying a watermark is generated through inverse transformation and coordinate reduction. The system comprises a coordinate conversion module, a binning module, a feature extraction module, a frequency domain transformation module, a watermark embedding module, an inverse transformation module, a vertex updating module and a model output module. The method provided by the invention has a large capacity up to 256 bits, and has significant robustness under rotation, scaling, translation, smoothing, simplification, vertex reordering and noise attack. The method can be widely applied to the technical field of three-dimensional data processing.

The application relates to the technical field of wear resistance of metallurgical equipment, and provides an easy-to-maintain wear-resistant device for a sintering rubber belt machine discharging chute, which comprises a chute body, a baffle arranged on both sides of a material impact surface of the chute body, a plurality of steel bars, the plurality of steel bars being arranged in parallel and at intervals on the material impact surface of the chute body and used for bearing direct impact and wear of the material, a U-shaped clamping groove fixedly arranged on the material impact surface of the chute body and having an opening upward, a rod body of the steel bar being embedded in the U-shaped clamping groove so as to realize quick positioning and supporting of the steel bar, and a fastening nut in threaded connection with the end of the steel bar and used for axially pressing and fixing the steel bar between the baffles of the chute body by being screwed. The steel bar, the U-shaped clamping groove and the fastening nut constitute an independent wear-resistant module, and can be separately disassembled and replaced. The device solves the problems of poor wear resistance and inconvenient maintenance of the discharging chute in the prior art.

The utility model discloses a hoisting type heat recovery fresh air machine which comprises a machine shell, an outdoor air inlet and an outdoor air outlet are formed in the side wall of the machine shell, and a first inserting groove and a second inserting groove are formed in the machine shell. The first inserting groove is located in the inner side of the outdoor air inlet and communicated with the outdoor air inlet. The second inserting groove is positioned on the inner side of the outdoor air outlet and is communicated with the outdoor air outlet; a first filter element and a second filter element are respectively inserted into the first inserting groove and the second inserting groove; outdoor fresh air passes through the outdoor air inlet and the first filter element and then enters the machine shell. And indoor air in the machine shell passes through the second filter element and then is exhausted from the outdoor air outlet. The hoisting type heat recovery fresh air machine can solve the problems that when the filter element of the hoisting type fresh air machine is replaced, the cover plate needs to be dismantled, and operation is inconvenient, and the filter element replacement process is simpler, more convenient and faster.

The invention discloses a high-robustness lossless high-capacity audio watermark embedding method based on deep learning, and relates to the technical field of digital watermarking. The method comprises the following steps of audio-watermark information preprocessing, watermark information embedding and watermark embedding detection and judgment. According to the method, the original audio and the watermark information to be embedded are correspondingly preprocessed, so that the quality of the original audio and the watermark information is effectively improved, the subsequent embedding process is more efficient and accurate, then the preprocessed audio and watermark information are input into the audio embedding network to output the watermark audio, and the watermark embedding efficiency is improved. According to the method, high-capacity watermark information is embedded, audio distortion in the embedding process is effectively avoided, the quality of the embedded audio is guaranteed, finally, the stability and the anti-jamming capability of the embedded watermark can be effectively detected by introducing adversarial training attack simulation, the audio distortion is reduced to the maximum extent while the watermark capacity is guaranteed, and the watermark quality is improved. And the anti-interference capability of the watermark is improved.

This invention relates to the field of catalyst preparation technology, and more specifically, to the preparation and application of a metal catalyst for the production of the rubber antioxidant 6PPD. Copper nitrate and zinc nitrate compounds are dissolved in deionized water, and silicate esters are added and mixed in a water bath. The pH is adjusted, the mixture is aged, filtered, and washed with water to obtain the catalyst precursor. Copper halide is added and stirred until homogeneous, then dried in an oven, ground, and calcined to obtain the metal catalyst for the production of the rubber antioxidant 6PPD. This invention's metal catalyst maintains high activity and selectivity while also being low in cost, exhibiting excellent stability and environmental friendliness. The preparation process is simple, reproducible, and suitable for large-scale production, providing a novel catalytic solution with high industrial application value for the efficient and green synthesis of p-phenylenediamine antioxidants.

The utility model relates to a locking device of a spare tire cover lock. The locking device comprises a sliding piece, a connecting plate, a bolt and a nut. The sliding part comprises a sliding plate, upper side plates and a rear side plate, a hook body is arranged at the front end of the sliding plate, the upper side plates are arranged on the two sides of the surface of the sliding plate respectively to form spring bolt grooves, inlets of the spring bolt grooves are formed between the tops of the upper side plates, and the size of the inlets of the spring bolt grooves is smaller than that of inner cavities of the spring bolt grooves. The rear side plate is arranged at the rear end of the sliding plate, and a second through hole is formed in the rear side plate; according to the locking device, the sliding piece is matched with the bolt, the nut and the connecting plate, the position of the sliding piece is accurately adjusted, the structure is compact, and reliability is high. The sliding piece is fixedly connected to the support through the bolt, a user only needs to rotate the nut, the bolt can be controlled to move front and back, and therefore the sliding piece is driven to achieve linear adjustment, the hook body accurately enters or retreats from the locking groove, and the locking or unlocking efficiency and stability are effectively improved.

The invention discloses a cross-browser window adaptation and cutting method for a Web browser plug-in of a domestic system, and belongs to the technical field of security and protection video playing. The method aims at solving the problems that plug-ins are instable in cross-browser embedding and dynamic display crosses the boundary in a localized system. According to the method, firstly, through multi-dimensional browser environment recognition and dynamic parent window binding, it is ensured that a plug-in accurately belongs to multiple browsers; and then, on the basis of visual area boundary parameters dynamically issued by the browser, performing successive dependent collaborative clipping on the plug-in main window and the floating layer window on the plug-in main window: firstly performing first clipping on the boundary-crossing main window, and then performing secondary constraint clipping on the floating layer window according to a clipping result. According to the method, stable embedding of the plug-in in a multi-browser environment and accurate display control under dynamic interaction are achieved, and visual errors and interface shielding are effectively eliminated.

The utility model relates to soft package wall body installation technical field especially is a kind of soft package wall body internal support reinforcing structure, including mounting plate, the back surface of mounting plate is fixed with several installation keel, installation keel is fixed with wall body by expansion bolt, the utility model is adapted to by the special structural design of the occlusion groove and occlusion block, so that occlusion block can be stably embedded in occlusion groove, while occlusion groove longitudinal surface is equipped with several limit slots, occlusion block surface is fixed with several limit convex edges corresponding and adapting with limit slot, the cooperation of limit slot and limit convex edge, further enhanced the connection stability between occlusion groove and occlusion block, prevent occlusion block to appear transverse slackening or displacement in installation process, this close occlusion relation greatly enhanced the connection strength between soft package wallboard and support structure, ensure that soft package wallboard remains stable in long-term use process, will not appear to shake or fall off phenomenon.

The utility model relates to the technical field of HDPE water drainage pipes, in particular to a connecting structure of an HDPE water drainage pipe, which comprises an HDPE water drainage pipe body and an assembling mechanism, the assembling mechanism comprises a fixing head, an installing head and a positioning mechanism, a fixing box is arranged between one end of the fixing head and the HDPE water drainage pipe body, the other end of the fixing head is provided with a threaded groove, and the positioning mechanism is arranged in the threaded groove. The fixing device comprises a fixing box, a fastening ring groove is formed in the fixing box, an elastic component and an annular plate are arranged on the fastening ring groove, and an adjusting mechanism is arranged between the annular plate and the fixing box. Good connection stability can be kept under the condition of water pressure change or external vibration, and the service life of the drainage system is prolonged.

The invention discloses an automatic assembly machine for filter screen component production. The automatic assembly machine comprises a rotary disc and a fixed disc in the center of the rotary disc. A mesh placing seat and a component placing seat are annularly distributed on the rotary disc, and a mesh feeding mechanism, a component feeding mechanism, a detection mechanism, a mesh placing mechanism, a mesh pressing mechanism and a discharging mechanism are sequentially arranged on the rotary disc in the circumferential direction. The net piece feeding mechanism achieves automatic feeding by punching a net piece belt stretching across the containing base. The component feeding mechanism automatically places the component on the component placing seat; the detection mechanism detects component postures; the net piece placing and pressing mechanism is matched to finish accurate placing and pressing of the net piece in a component assembling hole; the discharging mechanism automatically completes sorting and discharging of finished products. Full-process automation from material rolling to finished products is achieved, and production efficiency and product consistency are remarkably improved through multi-process synchronous continuous operation.

The application provides a polyquinopamine positive electrode material and a preparation method and application thereof. The polyquinopamine positive electrode material has a specific microstructure, can stably embed multivalent ions, is suitable for being used as a positive electrode material of a multivalent ion battery, and is hardly soluble in an electrolyte, so that application of the polyquinopamine positive electrode material to an ion battery can effectively inhibit loss of an active material. The preparation method comprises the following steps: dissolving 2,3,4,6-tetrachlorobenzoquinone and 1,2-cyclohexanediamine in a reaction solvent, and performing a condensation reaction under heating in inert gas protection; performing suction filtration after the reaction is completed to obtain a filter cake; performing washing on the filter cake with a washing solvent and then drying to obtain the polyquinopamine positive electrode material. The polyquinopamine positive electrode material is applied to a zinc ion battery, and the highest discharge specific capacity can reach 187 mAh g ‑1 at a current density of 0.02 Ag ‑1 , and the discharge specific capacity can be maintained at 90 mAh g ‑1 after 200 charge-discharge cycles.

This utility model relates to the field of sealing technology, specifically to a wear-resistant packing for a pumping unit. It includes a rubber substrate, with an anti-corrosion layer and a wear-resistant layer sequentially arranged from the inside out on the outer side of the rubber substrate. An upper rubber layer is bonded and sealed to the upper end of the wear-resistant layer, and an upper adhesive layer is coated on the upper end of the upper rubber layer. A lower rubber layer is bonded and sealed to the lower end of the wear-resistant layer, and a lower adhesive layer is coated on the lower end of the lower rubber layer. An insert rod is fixed inside the lower end of the rubber substrate, with its lower end penetrating the anti-corrosion layer and the wear-resistant layer and extending into the lower rubber layer. Multiple support frames are arranged inside the rubber substrate, and the support frames are fixedly connected to an elastic steel strip. The wear-resistant layer, anti-corrosion layer, and rubber substrate of this utility model form a gradient protection system. Combined with the flexible wrapping of the bonding interface by the upper and lower rubber layers, it achieves dual isolation from chemical corrosion and mechanical wear, ensuring long-term sealing integrity.

The utility model provides a kind of concrete pre-buried anchor bolt, belong to engineering installation component technical field, including the expansion hammer head of anchor bolt lower part setting, the anchor sleeve of expansion hammer head surface setting, the light rod section of anchor bolt middle part setting, the threaded section of anchor bolt upper part setting, the nut of threaded section setting, the storage sleeve of anchor sleeve inner wall setting, storage sleeve is filled with adhesive, the storage cylinder of light rod section upper surface setting, storage cylinder is filled with adhesive, the flat pad of nut lower part setting, the recess of several of flat pad bottom setting, the utility model breaks through ring cover by hammering and makes expansion hammer head, so that ring cover is divided into arc piece and is embedded in concrete with reverse buckling, storage sleeve breaks at this time and makes adhesive fill the lower half of anchor hole along the gap on anchor bolt, simultaneously, storage cylinder breaks and makes adhesive in it fill anchor hole, so that the installation of anchor bolt is facilitated, the installation time of anchor bolt is saved, recess on flat pad can also collect adhesive, prevent adhesive overflow waste.

This utility model discloses a drift window with a four-layer sealing structure, including a first main frame and a second main frame. A first sub-frame is installed on the top of the second main frame, and a second sub-frame is installed on the top of the first main frame. A first glass sash is installed on one side of the first sub-frame, and a second glass sash is installed on the top of the first main frame and the second sub-frame. A first sealing strip is installed on the top of the first sub-frame, and the first sealing strip is movably connected to one side of the first glass sash. This utility model has the advantage of good sealing performance, solving the problem that existing drift windows have poor sealing between the glass sash and the frame during use. In rainy or snowy weather, gaps in the poorly sealed areas can easily allow rainwater to seep into the room, affecting the comfort of the living environment and the durability of the building.

This invention belongs to the field of protective coating technology and discloses an environmentally friendly ceramic-graphene composite insulating protective coating and its preparation method. The coating comprises an aqueous epoxy resin, an inorganic ceramic precursor film-forming component, a core-shell-interface modified insulating graphene functional filler, an aqueous curing agent, and additives. The functional filler includes a graphene core, an Al2O3 insulating shell continuously coated on its surface, and an epoxy reactive organosilicon interface layer grafted onto the outer surface of the Al2O3 insulating shell. By first preparing the functional filler and then compounding it with the aqueous epoxy resin and the inorganic ceramic precursor film-forming component to form a film, the resulting coating possesses excellent insulation, protection, and adhesion stability, making it suitable for insulating and protecting metal substrate surfaces.

This invention provides an intelligent art hanging device for art design, comprising: a parallel plate, a partition screen, a support column, a slide rail, and a hanging structure. The partition screen on the upper edge of the parallel plate is spaced to the support column. The support column determines the position of the hanging structure via the slide rail, and the hanging structure is positioned above the parallel plate via the slide rail of the support column. This invention improves the hanging structure by using two sets of adjusting components that pass through the slide rail of the support column and are fixed to the locking slots at both ends of the balance bar. This allows for direct manual adjustment of the height of the hanging body, improving the convenience of height adjustment for the artwork. Furthermore, the lower force-bearing structure of the welded plate of the hanging body allows the artwork to be directly embedded in the hanging structure, replacing the original bolt locking process. This avoids deformation of the artwork caused by continuous pressure on the hanging position, thus effectively improving the practical performance of the hanging device.

The utility model relates to the field of fasteners, in particular to a multi-edge anti-pulling fastener which comprises a fixing ring, a screw, a second mounting column and a conical head, the lower end of the fixing ring is fixedly provided with first mounting columns distributed in an annular array mode, the lower ends of the first mounting columns are fixedly connected with the second mounting columns, the second mounting columns protrude outwards in an arc shape, and the conical head is fixedly connected with the screw. A third mounting column is fixedly connected to the lower end of the second mounting column, a conical head is fixed to the lower end of the third mounting column, and embedded blocks distributed in an annular array are arranged in the conical head. According to the device, the fastening effect of the device can be guaranteed by utilizing a two-section installation method and cooperating with a deformation mode after embedding, and the problem that an existing fastener lacks an effective fastening effect, so that looseness is likely to occur due to fierce shaking after fastening is solved.

The utility model discloses an exterior facade dimension measuring device for outdoor decoration, which comprises a bracket, wherein the upper end of the bracket is provided with a mounting frame, the inner wall of the mounting frame is internally provided with a total station, the side wall of the total station is provided with a connecting groove, the inner wall of the mounting frame is provided with an embedded block, and the embedded block is movably inserted into the connecting groove. According to the utility model, when the external facade dimension measuring device for outdoor decoration is used, a linkage mechanism of the movable block and the embedded rod is pushed by the screw rod, so that the total station can be quickly embedded and firmly locked in the mounting rack, the tedious steps of traditional bolt fixation are omitted, and the mounting and dismounting time is greatly shortened. And secondly, the core of the device is linkage of angle adjustment and height compensation. When the electric rotating shaft drives the embedded block to rotate so as to adjust the measurement angle of the total station, the built-in sensor can sense the rotation angle in real time and synchronously control the electric threaded rod to work so as to drive the support leg to stretch, retract, ascend and descend in the positioning column.

The utility model relates to the technical field of revetment structure, especially an old ground recycling revetment, including revetment main part structure, its characterized in that: the revetment main part structure is formed by old ground concrete block and cement base cementitious material mixed pouring, one side of the revetment main part structure is equipped with ecological retaining wall module and is in water, the ecological retaining wall module material is concrete block, one side of ecological retaining wall module is equipped with ground layer, be equipped with river course on the ground layer, the application with cement base cementitious material mixed pouring main part structure with waste concrete block, realizes the resource utilization of construction waste, ecological retaining wall module is constituted by the earth retaining unit of transverse connection, the side wall hydrophobic hole strengthens water exchange, avoids water pressure accumulation, the bottom sharp wedge shape structure promotes the anti -slip ability, the outer wall hydrophobic groove reduces the soil scouring, hollow cavity and planting groove support the vegetation growth, promote ecological restoration, top floating type anti -collision module buffer impact.

The application discloses a smart power network distribution cabinet, which comprises a cabinet body for being installed on a base, a cabinet door is hingedly arranged on one side of the cabinet body, a protection frame is arranged on the outer periphery of the cabinet body, the protection frame wraps at least three sides of the cabinet body, a protection door is arranged on the side of the cabinet body close to the cabinet door, and the protection door is slidably arranged on the protection frame in a horizontal direction and opposite to the cabinet door; a containing groove is formed in the base and adapted to contain the cabinet body, the protection frame and the protection door, a sliding mechanism is slidably arranged on the outer wall of each of the two sides of the cabinet body adjacent to the cabinet door in a vertical direction, the bottom of the sliding mechanism is in sliding contact with the surface of the base, the application further comprises a jacking mechanism for driving the cabinet body to move in a vertical direction relative to the sliding mechanism; the sliding mechanism enables the cabinet body to slide during transportation and installation, thereby facilitating position fine adjustment during the installation and positioning of the distribution cabinet, and the protection frame and the protection door can be limited after being embedded into the containing groove of the base, thereby realizing integrated operation of the distribution cabinet from mobile positioning to stable installation.

The application discloses a kind of high-dispersion cobalt-based catalyst and its preparation method and application, belong to cobalt-based catalyst technical field, the present application with four carboxyl phthalocyanine cobalt and nitrogen defect carbon nanotube as raw material, through molecular self-assembly in organic solvent and form pre-assembly complex, then the pre-assembly complex is programmed microwave heating, obtain the high-dispersion cobalt-based catalyst, the present application utilizes the means that specificity molecular precursor and carrier defect engineering are combined, by liquid phase pre-assembly constructs "molecular anchor-anchor position" pre-connection system, again with the principle of programmed microwave energy precise input, successfully solve the key technical problems that existing microwave method preparation cobalt-based catalyst when metal atom is easy to gather, active site structure is uncontrollable and catalytic performance is mediocre etc..

The invention discloses a fluorine filler modified polymer electrolyte and a preparation method thereof, and belongs to the field of new energy battery electrolytes.According to the polymer electrolyte, on one hand, dissociation of lithium salt is promoted through the Lewis acidity of fluorine filler, and high room-temperature ionic conductivity is achieved; and on the other hand, a stable interface layer is constructed through metal elements and fluorine elements in the filler, stable long circulation of the symmetric battery is realized, and stable operation of the conversion type positive electrode material ferric fluoride at room temperature is realized. According to the polymer electrolyte prepared by the scheme, the defects of a conversion type positive electrode material can be overcome, so that system construction of a lithium ion battery with higher energy density is realized, and the polymer electrolyte is expected to become an ideal choice for high value-added scenes such as flexible electronics and wearable equipment.

This utility model discloses a new energy vehicle battery testing device, including a testing platform, a moving frame, a spatial clamping mechanism, a support replacement mechanism, and a snap-fit ​​auxiliary mechanism. The spatial clamping mechanism includes a lifting hydraulic cylinder, a clamping assembly, a push-pull hydraulic cylinder, a push-pull frame, and a support base. The support replacement mechanism includes a snap-fit ​​tube, a snap-fit ​​rod, an embedding groove, an outer rotating plate, an embedding ring, a push-pull rod, and an embedding plate. The spatial clamping mechanism achieves precise positioning of the battery in three-dimensional space through the coordinated work of the push-pull hydraulic cylinder and the lifting hydraulic cylinder. The placement groove on the support base further enhances the stability of the battery. The support replacement mechanism adopts a clever cooperation between the snap-fit ​​rod and the embedding plate. Through the rotation drive of the outer rotating plate and the embedding ring, the support base can be quickly disassembled and installed. This design overcomes the shortcomings of traditional devices that lack a quick replacement method, and greatly improves the flexibility and efficiency of adapting to different battery models.

The utility model relates to a height adjustable scaffold belongs to the field of construction, solve the problem that traditional scaffold height adjustment is complicated, the convenient height adjustment of support plate is realized through setting up screw rod, first lock ring, second lock ring and nut, support plate is installed on the stand by connecting device, and the connecting device includes first lock ring and second lock ring articulated on the support plate, and the end away from the support plate of second lock ring is equipped with the mounting block with screw rod, and two nuts are screwed on the screw rod, when adjusting, the lock ring is loosened or clamped the stand by rotating nut, and the support plate is moved to the required height and is fixed, in addition, the both ends of support plate are equipped with guide rail, and the sliding rail is driven through the screw rod and hand wheel, can adjust the position of tool box flexibly, and the utility model discloses simple operation, can conveniently adjust the height of scaffold, improves the construction efficiency, guarantees the structure stability and safety simultaneously, is applicable to a variety of construction scenes.