62results about How to "Not easy to fail" patented technology

The utility model discloses a photovoltaic system and a buckle cover type waterproof structure thereof, which belong to the field of photovoltaic technology and comprise a waterproof buckle cover arranged at a gap between two adjacent photovoltaic assembly frames. The waterproof buckle cover comprises a water retaining part which shields right above the gap, a buckle part which extends downwards from the water retaining part and is inserted into the gap, and a sealing part which extends from the water retaining part to two opposite sides of the gap and covers the A surface of the photovoltaic module frame, and the buckle part is buckled and fixed with the B surface of the photovoltaic module frame. And a sealing rubber strip is arranged between the sealing part and the A surface of the photovoltaic module frame. According to the waterproof cover plate, a small gap between the sealing part and the A surface is secondarily blocked through the sealing rubber strip, the waterproof reliability is improved, and therefore compared with a conventional waterproof cover plate, the waterproof cover plate can greatly improve the waterproof effect.

The utility model relates to the technical field of automobile awning sunshade curtains, and discloses a clip for an automobile awning sunshade curtain, which comprises an inner support arm, the anti-falling part is positioned at the root part of the inner supporting arm; the supporting part is connected with the anti-falling part; the magnet mounting part is positioned below the supporting part, and a magnet is arranged in the magnet mounting part; and the outer supporting arm is connected with the magnet mounting part. The utility model has the beneficial effects that the structure is more symmetrical, and the stress is easier to balance.

The utility model discloses a two -dimensional code protection device, it includes the fixed plate, the fixed plate one side is provided with the flip, the fixed plate with the hinge between the flip is hinged, the fixed plate inside is provided with two -dimensional code inlay groove, the fixed plate inside is provided with one number and places the groove, the fixed plate with the inside four corners symmetry of flip is provided with a plurality of limit hole, the limit hole inside all are fixedly connected with magnet, one number and places the groove inside fixed connection one rubber strip, the two -dimensional code inlay groove with limit hole between being provided with the protection groove, the protection groove inside fixed connection has no.

This invention discloses a vertical cylinder double eccentric ball joint linkage vacuum check valve and method. The check valve includes a valve body, double eccentric valve discs, a valve stem, a valve cover, a vertical cylinder, and a valve disc shaft support. The valve body has a valve seat hole, and the double eccentric valve discs are rotatably mounted on the valve body via the valve disc shaft. An arc-shaped contact surface is integrally formed on the outer side of the valve discs. Balls are embedded at the bottom of the vertically arranged valve stem, and the balls roll in contact with the arc-shaped contact surface. The valve cover is sealed and fixed to the upper end of the valve body. The vertical cylinder is vertically mounted on the valve cover, and its piston rod is rigidly connected to the valve stem coaxially. The valve disc shaft support is symmetrically fixed to the valve body and supports the valve disc shaft. This solution uses a vertical cylinder coaxial drive combined with ball rolling transmission, eliminating the traditional hard top pressure friction and significantly reducing the opening and closing resistance. The double eccentric valve discs rotate stably, and the closing response speed is faster, effectively solving the defects of slow valve closing and severe seal wear in traditional check valves. The overall assembly is stable and suitable for the long-term airtight operation requirements of industrial negative pressure vacuum systems.

The invention discloses a four-step-in-one negative pressure oil-carrying shutdown method for a styrene dehydrogenation reaction system, and relates to the technical field of styrene dehydrogenation. A negative-pressure steam oil-carrying mode is adopted for the first time, after feeding of the dehydrogenation reaction system is cut off, operation of a tail gas compressor is still maintained, the normal negative-pressure working condition of the reaction system is maintained, and steam oil-carrying under the negative-pressure working condition is carried out; after oil carrying is finished, the tail gas compressor still keeps running, the pressure is gradually increased to micro-positive pressure, and catalyst scorching is conducted; and after scorching is finished, the tail gas compressor is still maintained to operate in the steam cooling and nitrogen cooling processes until nitrogen cooling is finished, the tail gas compressor is stopped, and meanwhile multiple times of starting and stopping of the tail gas compressor are optimized into one-time stopping operation in the stages of steam oil carrying, catalyst scorching, steam cooling and nitrogen circulating cooling. One-time shutdown operation of the tail gas compressor is achieved through negative pressure shutdown, the shutdown operation step sequence of the reaction system is greatly simplified, and the shutdown disposal difficulty of the dehydrogenation reaction system is reduced.

The invention discloses a river and lake water quality ecological purification device and method, and belongs to the technical field of water ecological protection, the river and lake water quality ecological purification device comprises a water quality purification mechanism, and the water quality purification mechanism is provided with two adjusting type putting mechanisms; through telescopic movement of the adjusting assembly, translation adjustment of the spraying assembly can be achieved, the transverse pesticide spraying area is increased, the adjusting assembly stretches out and draws back, the pressurization connecting assembly can be driven to rotate through the rope control assembly, the spraying assembly rotates to conduct spraying, and spraying uniformity is kept; the stirring blades can stir the medicament sinking into the water body from the water surface, the diffusion speed is increased, the spray head set drives the convex balls and the moving wheels to reciprocate to generate extrusion force, the shell and the piston move relatively, and therefore the purpose of pressurization can be achieved, the spraying effect is improved, the spraying assembly can move up and down, and the spraying effect is improved. The medicament feeding operation at different depths is further met, so that the medicament can be quickly and uniformly distributed in the whole polluted area, and the purification effect is improved.

The utility model relates to the technical field of diving accessories, and discloses a Hall switch type underwater photography light supplementing device, which comprises a main shell provided with an opening, an accommodating cavity arranged in an area far away from the opening, and a first transparent plate mounted at the opening; the cover body is fixedly connected with the main shell, the cover body is provided with a second transparent plate, and a sealing ring is arranged between the cover plate and the main shell; the light supplementing lamps are arranged around the opening; the power source is installed in the containing cavity, and the light supplementing lamp is electrically connected with the power source; the Hall switch assembly is installed on the side portion of the main shell and used for controlling the light supplementing lamp to be turned on or turned off. The device has the advantages of being simple in structure, convenient to operate and high in stability, effective control over the light supplementing device and the shooting device is achieved through the Hall sensor, the device is not affected by the water depth, and the device can be applied to various complex diving environments.

The invention provides a method, a device and equipment for detecting a travelable area of a limited space and a storage medium, and the method comprises the steps: receiving an RGB image and a depth point cloud when an unmanned vehicle travels in the limited space; performing image analysis on the RGB image to obtain feature parameters; converting the depth point cloud into a depth map, and performing mask processing on the depth map to obtain a depth validity mask and the distance confidence of each point cloud in the depth map; calculating the corresponding RGB reliability of the RGB image under the N scales according to the feature parameters, and calculating the corresponding depth reliability of the depth map under the N scales according to the depth validity mask and the distance confidence; inputting the RGB image, the depth map, the RGB reliability and the depth reliability into a pre-trained network model to obtain a drivable area probability graph; and determining the drivable area of the unmanned vehicle according to the drivable area probability graph. The detection precision of the drivable area of the unmanned vehicle in the limited space can be improved, and the real-time sensing requirement of the unmanned vehicle can be met.

This invention discloses a hydraulic power module, its application, a hydraulic system, a fire truck, and a method. The hydraulic power module, used in the hydraulic system of a fire truck, is suitable for adjusting various hydraulic components. It includes a pressure signal pipeline for monitoring the pressure values ​​of the hydraulic system and controlling the hydraulic output. The pressure signal pipeline collects dynamic pressure values ​​of the hydraulic system in real time, forming a continuous pressure feedback signal. The pressure feedback signal is compared in real time with a preset target pressure value. If the pressure feedback signal continuously deviates from the target pressure value, a fault signal is issued. This hydraulic power module, by setting multiple hydraulic power sources, allows other hydraulic power sources to provide emergency hydraulic power when one source fails, preventing loss of hydraulic power, improving the stability of the hydraulic system, and providing emergency hydraulic power support. The accumulator absorbs pressure signal peaks, stabilizing the pressure signal.

This invention discloses a traditional Chinese medicine composition for replenishing qi and nourishing blood, and its preparation method, belonging to the technical field of food-medicine homology traditional Chinese medicine health care preparations. The composition of this invention uses oyster peptide powder, compound amino acid powder, polygonatum powder, maca powder, eucommia male flower powder, ginseng powder, cordyceps powder, and earthworm protein peptide powder as core active ingredients, supplemented with deer antler powder, deer tendon powder, and deer blood peptide powder to enhance the effects of strengthening the body and nourishing blood. It is combined with xylitol, corn starch, maltodextrin, magnesium stearate, and caramel color as molding excipients. The dosage of each component is precisely controlled. Through a proprietary preparation process involving raw material pretreatment, segmented gradient mixing, and refined post-processing, a 1g / tablet formulation is prepared. The formulation of this invention is rigorously formulated, with clear distinctions between principal, assistant, and adjuvant ingredients, and each component synergistically enhances its effect. It can fundamentally improve problems such as qi and blood deficiency, insufficient vital energy, fatigue, and physical weakness. It has comprehensive efficacy, rapid onset of action, and wide applicability, possessing extremely high industrial promotion and health care application value.

The utility model provides a kind of machining center contact type mechanical tool changing structure, it is related to mechanical tool changing structure technical field, including stand mechanism, the front of the stand mechanism is equipped with main shaft box, the front of the stand mechanism is close to top end place, and punch arm mechanism is installed in the inside of main shaft box, the stand mechanism includes stand main body, the top end of the stand main body is equipped with motor with output end towards bottom, the front of the stand main body is close to top end place and is equipped with punch block, the inside of main shaft box is close to the front place and is equipped with main shaft body, the top end of the main shaft box is close to left side place and is screw-connected with first fastening screw, the periphery of the first fastening screw is equipped with tension spring, the top end of the main shaft box is close to the front place and is screw-connected with second fastening screw, mechanical quick tool changing can be realized, additional transmission device is not needed, with the advantages, such as quick tool changing efficiency, small size, cost saving.

The invention discloses a haplotype molecular marker related to cotton fiber strength and application of a detection primer of the haplotype molecular marker, and relates to the technical field of plant molecular biology and genetic breeding. The haplotype molecular marker is located in 112, 985, 431-112, 990 and 059bp regions of A06 chromosome of a cotton reference genome, a haplotype block is formed by nine closely linked SNP (Single Nucleotide Polymorphism) sites, the incidence relation between three haplotypes Hap1, Hap2 and Hap3 in the block and fiber strength is defined, and a new molecular target is provided for cotton fiber quality breeding. Compared with a single SNP marker, the haplotype molecular marker provided by the invention has higher stability and phenotype prediction accuracy under a complex genetic background. Genetic typing can be carried out in the cotton seedling stage based on the marker, fiber maturation does not need to be waited, the breeding period is greatly shortened, and the field screening cost is reduced.

The utility model discloses a glass fiber reinforced plastic anti-static pipeline which comprises a pipe wall and conductive connecting pieces, the pipe wall is composed of a glass fiber reinforced resin matrix and comprises a corrosion-resistant lining layer, an anti-static function layer and a structural strength layer from inside to outside, and the conductive connecting pieces are arranged at the two ends of the pipe wall. And the anti-static functional layer is reliably and electrically connected with the conductive connecting pieces at the two ends of the pipe wall. According to the glass fiber reinforced plastic anti-static pipeline, the anti-static functional layer serves as an independent and key structural layer of the pipe wall instead of a surface coating, the anti-static functional layer is not prone to losing efficacy due to abrasion and corrosion, the service life is long, the anti-static capacity is high, meanwhile, the anti-static functional layer is reliably and electrically connected with the end flanges, it is ensured that static electricity is effectively guided out, and the service life is prolonged. Therefore, the anti-static performance of the glass fiber reinforced plastic pipeline is stable and reliable.

The invention relates to the technical field of mortar preparation, in particular to high-performance waterproof dry-mixed mortar and a preparation method thereof. The high-performance waterproof dry-mixed mortar is prepared from the following raw materials in parts by weight: 300 to 400 parts of cement, 550 to 650 parts of quartz sand, 1.5 to 3.0 parts of silane waterproof agent, 15 to 25 parts of hydrophobic redispersible latex powder, 0.2 to 0.5 part of water-retaining thickening agent, 0.5 to 1.5 parts of polycarboxylic acid water reducing agent, 3 to 8 parts of thixotropic lubricant, 0.3 to 1 part of coagulation accelerator, 20 to 50 parts of superfine filler and 0.5 to 1.5 parts of polypropylene fiber. The technical problem of non-uniform dispersion of trace components in high-performance mortar production is solved through the process combination of premixing the water-retaining thickening agent, the polycarboxylate superplasticizer, the thixotropic lubricant and the coagulant and then performing staged low-speed main mixing on the mixture and other raw materials; the effects of excellent waterproof and anti-seepage performance, excellent mechanical property and bonding strength, excellent crack resistance and high durability are achieved.

This utility model belongs to the field of carton opening machine technology, and in particular to an opening device, including a guide rail and a connecting plate. The guide rail is connected to the frame of the carton opening machine. A connecting plate is installed on one side of the guide rail, and a support plate is fixed on the side of the connecting plate away from the guide rail. When the guide rail is activated, it moves the connecting plate, causing the connecting rope to pull the support rod. This causes the rotating rod to rotate the push plate upwards, allowing the push plate to automatically fold the short side of the carton bottom horizontally. After the push plate folds the short side, the guide rail moves the opening device back to its original position. At this time, the connecting spring contracts, pulling the rotating rod back to its original position, keeping the support rod vertical, and allowing the push plate to return to its original position. Operators only need to periodically replace the connecting spring to maintain the stable operation of the opening device, reducing the risk of malfunction, minimizing carton wear, and improving production efficiency.

The utility model discloses an axial flow water turbine water guide mechanism which comprises an upper ring seat (1) and a lower ring seat (2), a plurality of guide vanes (3) are arranged between the upper ring seat (1) and the lower ring seat (2), rotating shafts (4) are arranged in the middles of the upper ends and the lower ends of the guide vanes (3), driving rings (5) are connected to the upper ring seat (1) in a rotating mode, servomotors (6) are connected to the driving rings (5), and the servomotors (6) are connected to the driving rings (5). The upper ends of the rotating shafts (4) are connected with the driving ring (5) through a first connecting rod (7) and a second connecting rod (8), and a linkage mechanism connected with the lower ends of all the rotating shafts (4) is arranged at the bottom of the lower ring seat (2); the linkage mechanism comprises a plurality of adapter plates (9), the adapter plates (9) are fixed to the lower ends of the rotating shafts (4) respectively, third connecting rods (10) are arranged between the adjacent adapter plates (9), and the third connecting rods (10) are hinged to the adapter plates (9). The utility model has the advantage of low maintenance frequency.

The invention relates to the technical field of photovoltaic devices, in particular to a composite electrode, a flexible perovskite photovoltaic device thereof and a packaging method. According to the technical scheme, the composite electrode is of a multi-layer structure and sequentially comprises a stress buffering and interface bonding layer, a conductive grid layer and a self-repairing functional layer from bottom to top. A buffer interface with modulus gradient transition is constructed, a three-dimensional composite conductive network is formed by reducing graphene through a silver nanowire / carbon nanotube / chemical vapor deposition method, a self-repairing functional layer integrating a dynamic disulfide bond and microcapsule dual mechanism is combined with an atomic layer deposition inorganic layer and an organic buffer layer for composite packaging, and the three-dimensional composite conductive network and the self-repairing functional layer are formed. The key problems of mechanical mismatch between an electrode and a substrate in a flexible perovskite photovoltaic device, easy damage of a conductive network under bending and stability reduction caused by water and oxygen invasion are systematically solved, so that high photoelectric efficiency is ensured, and repeated bending resistance, damage self-repairing capability and long-term environmental stability of the device are remarkably improved.

The application discloses a large-mass heaven-side slider anti-falling self-locking mechanism in an injection mold, relates to the technical field of mold slider anti-falling, and has the technical scheme as follows: a front mold plate, an inclined guide column, a rear mold plate and a slider are included; stop blocks are embedded and fixed on the left and right sides of the slider on the rear mold plate; a clamping groove is arranged on the slider; a lock block is slidably connected to the clamping groove on the stop block; the lock block comprises a driving block and a lock tongue fixed on the driving block; the lock tongue can extend into the clamping groove; a supporting block is fixed on the stop block; a through groove is arranged through the supporting block and the driving block; a driving rod is slidably connected in the through groove; one end of the driving rod is fixedly connected with the front mold; and a guide driving part for driving the driving block to move towards or away from the clamping groove is arranged at the other end of the driving rod. The application adopts a mechanical component to rigidly lock and release, is not prone to failure, has good stability, can be applied to a large-mass heaven-side slider, and has good use safety.

The application discloses a top sealing device of a shot blasting chamber and the shot blasting chamber. The top sealing device of the shot blasting chamber comprises a guard plate, a drive device and a driving arm. The guard plate is provided with a guide inlet which is open to the side where the first long plate edge is located at a predetermined position of the first long plate edge. The drive device is located at the second side of the outer opening of the shot blasting chamber. The end of the driving arm is hinged to the back side of the guard plate. The hinged position of the guard plate and the driving arm is offset to the second long plate edge. The driving arm is a rocker arm which is hinged to the predetermined position of the second side of the opening. The top sealing device of the shot blasting chamber according to the embodiment of the application has relatively good sealing performance and relatively compact structure.

This invention discloses a casement window locking system with a concealed handle, comprising a concealed handle, a transmission lock box, two first transmission rods, two connecting block components, and two lock seats. The concealed handle is connected to the lock seats, and the lock seats are respectively connected to the two first transmission rods. One first transmission rod is connected to a connecting block component, and one connecting block component is connected to a lock seat. The lock box, by incorporating the concealed handle, transmission lock box, two first transmission rods, two connecting block components, and two lock seats, allows the concealed handle to connect to the transmission lock box. The handle, in conjunction with a gear and rack mechanism, drives a sliding block to move. The sliding block then moves components inside the transmission lock box, which in turn, via the first transmission rods, moves the connecting block components, causing the connecting block components to lock or unlock the lock seats, thereby opening or locking the window sash. The overall structure is simple, practical, and reliable. The handle can be concealed within the window sash profile, resulting in a good overall viewing angle.

The application discloses a thermochromic coating of a single-component discoloring system, and belongs to the field of fine chemical industry and material science and technology. In the application, fluorane oxaspiro lactone is modified into an azaspiro lactam skeleton, a hydrogen bond construction group is introduced, and a single-component fluorane dye capable of self-assembling hydrogen bond dimers is synthesized. The dye can realize thermochromism by means of intermolecular hydrogen bond regulation of reversible opening and closing of the spiro ring, and has double output performances of color and fluorescence without an additional electron acceptor and phase change solvent. The dye is compounded with a thickening agent, a water-based adhesive and water to obtain the thermochromic coating, and a thermovariable fabric is directly prepared by screen printing, and the thermovariable fabric does not need to be encapsulated.

The invention provides cooking equipment, and relates to the technical field of kitchen appliances. The cooking equipment comprises a cover body assembly, a container assembly, an induction assembly and an inducted part, an opening is formed in the container assembly, and the cover body assembly is used for covering the opening; one of the cover body assembly and the container assembly is provided with an induction assembly, the other one of the cover body assembly and the container assembly is provided with an inducted part, the inducted part is used for entering the induction range of the induction assembly when the cover body assembly covers the opening in place, and the induction assembly is used for sending out an assembly in-place signal when the inducted part enters the induction range of the induction assembly. According to the cooking equipment, through mutual cooperation of the sensing assembly and the sensed part, the in-place assembly signal can be sent out when the cover body assembly covers in place, so that the process of detecting whether the cover body assembly is assembled in place or not is achieved, a coupler does not need to be adopted, and therefore the phenomenon of poor contact between a pin and a jack is avoided; and the phenomena that oil and water enter the jacks and oil stains and impurities are attached to the pins are avoided.

The invention relates to the technical field of tactile perception, in particular to a multi-dimensional tactile perception sensing unit, a tactile perception system and a manufacturing method. Comprising the steps that a piezoresistive layer is evaporated on the first surface of the elastic cantilever beam, and a first electrode layer is evaporated on the surface of the piezoresistive layer; the insulating layer is evaporated on the second surface of the elastic cantilever beam, the first bonding layer is evaporated on the surface of the insulating layer, and the first surface of the super-smooth layer is bonded on the surface of the first bonding layer; a second electrode layer is evaporated on the first surface of the supporting substrate, the first surface of the dielectric layer is deposited on the first surface and the peripheral side surface of the second electrode layer, and the second surface of the super-smooth layer is in contact with the second surface of the dielectric layer; butt-joint anchor points corresponding to the elastic cantilevers one by one are arranged on the peripheral side of the second surface of the dielectric layer, and each butt-joint anchor point is elastically connected with one elastic cantilever. According to the invention, the interface super-slippery slip is used as a mechanical information carrier to be applied to tactile perception, so that the perception sensitivity, the multi-dimensional decoupling capability and the sensing life are improved.

An anti-siphon anti-backflow drainage system of a dish-washing machine comprises a drainage pipeline connected with an inner container and a drainer, a drainage channel is arranged in the drainer, a respirator is arranged on the drainer, and an air inlet communicated with the outside atmosphere, a first air inlet channel and a first steam channel are formed in the respirator. The drainage pipeline, the first steam channel and the drainage channel are sequentially communicated to form a drainage water channel, and the air inlet, the first air inlet channel and the first steam channel are sequentially communicated to form a first air suction channel; when the drainage waterway drains water, external atmosphere reaches the drainage waterway through the first suction air path. According to the anti-siphon and anti-backflow drainage system, the air inlet communicated with the outside atmosphere, the first air inlet channel and the first water and air channel are formed in the respirator, the first air suction channel is formed, when the drainage waterway drains water, the outside atmosphere reaches the drainage waterway through the first air suction channel, namely air suction is carried out when drainage is carried out; and air pressure balance communicated with the atmosphere is ensured, so that a siphoning effect is prevented.

The invention discloses a high-temperature-resistant metal casting demolding coating and a preparation method thereof, and belongs to the technical field of coatings. The components of the coating are optimized, the composite binder formed by compounding the organic binder and the inorganic binder is adopted, and the high-temperature-resistant auxiliary agent composed of the zirconite powder, the corundum powder and the nano cerium oxide is combined, so that the temperature tolerance of the coating is remarkably improved, and the service life of the coating is remarkably prolonged; the added hexagonal boron nitride can form a compact and smooth coating surface, the adhesion between a metal melt and a mold can be effectively reduced by combining the high-temperature-resistant auxiliary agents of different grades and utilizing the filling-supporting-lubricating synergistic effect and synergistic effect of particles of different sizes, and efficient and stable demolding performance is achieved; and the nano aluminum oxide can form chemical bonding with hexagonal boron nitride and the composite binder, so that the interface bonding force is further enhanced, the coating is prevented from being layered and peeled off under high-temperature impact, the thermal impact of molten metal on the mold is effectively buffered, and the service life of the mold is prolonged.

This invention belongs to the field of nano-coating technology, specifically a self-cleaning nano-coating for photovoltaic panels in high-altitude and cold regions and its preparation method. The coating includes a base layer and a superhydrophobic photothermal layer covering the base layer. The base layer includes a silane coupling agent and nano-titanium dioxide sol. The superhydrophobic photothermal layer includes multi-level micro / nano-roughened silica modified with low surface energy materials and near-infrared absorbing tungsten bronze nanoparticles. The multi-level micro / nano-roughened silica includes silica microspheres with a particle size of 200-500 nm, and silica nanospheres with a particle size of 50-80 nm are attached to the surface of the silica microspheres. In this invention, the multi-level micro / nano-roughened silica has higher mechanical stability and is less prone to overall failure under stress. When subjected to ice crystal compression, each silica nanosphere undergoes slight displacement and deformation to dissipate stress, rather than completely rigidly resisting fracture. The near-infrared absorbing tungsten bronze nanoparticles generate heat, increasing the thickness of the water film between the ice and the coating, and reducing the adhesion of the ice layer.

This invention relates to the field of shoe sole technology, specifically to a multi-color, multi-density shoe sole. The sole is formed by molding foam beads A, B, and C using a shoe sole mold. Magnetic responsive fibers are dispersed within foam beads B and C. A first foaming agent is dispersed within foam beads B, and color-developing microparticles are dispersed within foam beads C. These color-developing microparticles are composed of a mixture of photochromic material and pigment. Magnetic responsive fibers are distributed within the color-developing microparticles, and a second foaming agent is distributed within the magnetic responsive fibers. Through a combination of physical and chemical foaming, under the influence of an external magnetic field, different areas of the shoe sole exhibit regular density changes, allowing the sole to better conform to the foot and improve wearing comfort. Furthermore, based on the penetration of magnetic responsive fibers into adjacent foam beads, combined with the three-stage foaming process, the bonding strength between adjacent foam beads is improved, effectively solving the technical problems of existing bead-foamed shoe soles being prone to tearing along the weld interface and having low tear resistance.

A non-adhesive housing for a data cable, the data cable itself, and an assembly method thereof are disclosed, belonging to the field of data cables. The non-adhesive housing includes: a metal shielding shell for housing the internal structure of the data cable connector; an outer protective shell fitted over the metal shielding shell; a one-way locking structure disposed between the metal shielding shell and the outer protective shell for forming a mechanical lock that prevents the outer protective shell from detaching in the reverse direction when it is fitted over the metal shielding shell in the assembly direction; and an elastic sealing sleeve fitted over one end of the metal shielding shell, wherein the elastic sealing sleeve and the inner wall surface of the outer protective shell form a detachable adsorption fit. The assembly process is simple and quick, requiring no waiting for adhesive curing, thus improving production efficiency and ensuring reliable connection.

This invention relates to the field of geophysical exploration technology, and particularly to a method, apparatus, electronic device, and computer-readable storage medium for inverting borehole transient electromagnetic pseudo-3D data from multi-point joint detection. The method includes: emitting a pulsed magnetic field at the borehole opening to acquire an observation dataset; constructing an initial inversion model and pre-setting values ​​for model parameters; based on the equivalent eddy current principle, constructing a functional relationship between the model parameters and the forward modeling theoretical data to obtain the inversion objective function; using a simulated annealing algorithm, with the initial inversion model as the initial iteration condition, iteratively optimizing the inversion objective function to obtain the electrical parameters corresponding to the minimum value of the inversion objective function, and reconstructing the model parameters based on the electrical parameters. Introducing the equivalent eddy current principle and the simulated annealing algorithm into the transient electromagnetic forward modeling calculation of the entire mine space ensures the accuracy and practicality of the final inversion results.

The application provides a battery cell, a battery device and a power utilization device. The battery cell comprises a shell and a pressure relief mechanism, the shell has a wall portion, and the pressure relief mechanism is arranged on the wall portion. The pressure relief mechanism is provided with a weak portion configured to be at least partially destroyed when the pressure or temperature in the battery cell reaches a threshold value. The pressure relief mechanism is provided with a plurality of grooves, the plurality of grooves comprises a first groove and a second groove, the weak portion is arranged outside the first groove, and the second groove is arranged outside the weak portion. When a part of the pressure relief mechanism located in the area surrounded by the first groove is subjected to an external force, the position of the pressure relief mechanism provided with the first groove is prone to deformation and absorption of the external force; when a part of the pressure relief mechanism located outside the area surrounded by the second groove is subjected to an external force, the position of the pressure relief mechanism provided with the second groove is prone to deformation and absorption of the external force, thereby reducing the stress transmitted to the weak portion, reducing the risk of premature cracking of the weak portion, and being beneficial to improving the service life of the battery cell.