22results about How to "Avoid structural failure" patented technology

The utility model relates to the technical field of house building, and provides a modular integrated box house roof convenient to disassemble and assemble, which comprises a main frame, a plurality of reinforcing cross rods which are distributed at equal intervals along the width direction of the main frame are fixedly connected to the inner side of the main frame, a placing groove is formed in the top surface of the main frame, and a top plate assembly is placed on the inner side of the placing groove. The top of the main frame is fixedly connected with a first pressing piece used for pressing the top plate assembly, the two ends of the bottom face of the main frame are fixedly connected with guide rails, a bottom plate assembly is arranged between the two guide rails, one end of each guide rail is provided with an assembling groove, and the inner side of each assembling groove is provided with a second pressing piece used for pressing the bottom plate assembly. Traditional bolt connection is replaced by sliding fit of the clamping strips and the clamping grooves, installation steps are simplified, dependence on hole site precision is reduced, the problem of looseness caused by abrasion of bolt holes after repeated disassembly and assembly is effectively solved, and construction efficiency is remarkably improved.

The utility model provides a kind of charging base of magnetic attraction lamp, belong to lamp holder technical field, including base, the upper center of base is equipped with docking groove, still including the lamp body of being inserted in docking groove, it is characterized by: the bottom two sides of lamp body are equipped with two insertion rods, and positioning hole is opened on the circumferential side wall of insertion rod, and the upper two sides of base are equipped with positioning mechanism, when lamp body is inserted in docking groove, positioning mechanism can be inserted into positioning hole, realize the limiting of insertion rod and the plug direction of lamp body;The utility model can limit the plug direction after lamp panel installation, realize double fixing by magnetic attraction and positioning mechanism, improve the stability of lamp panel and charging base connection, prevent lamp panel from appearing loose and falling off.

This invention discloses a core structure for a highly reliable electronic gear shifter, including a bracket, side plates, a toothed plate, and a shifting assembly. The shifting assembly includes a left shift block, a shift lever, a right shift block, steel balls, a locking plate, a locking spring, a gear position spring, and a sleeve. The shift lever is clamped and fixed by the left and right shift blocks. The cylindrical boss of the left shift block is tightly fitted with the inner hole of the large bearing, and the pin hole of the right shift block is tightly fitted with a pin, which is also tightly fitted with the inner hole of the small bearing. The locking spring and locking plate slide within the inner cavities of the left and right shift blocks, the steel balls and gear position spring move within the inner hole of the sleeve, and the steel balls and locking plates are slidably connected to the toothed plate. The unlocking lever slides within the shift lever. This invention enhances the shifting operation feel, increases the service life of the gear shifter, improves the strength and structural reliability of the gear shifter, and the locking function avoids the risk of misoperation.

This invention relates to an embedded, transparent protective structure resistant to repeated impacts. It comprises a transparent ceramic curved armor plate, a transparent fiber-reinforced skeleton, a polycarbonate curved backplate, an epoxy resin coating, and an STF shear-thickening coating. The polycarbonate curved backplate has a central groove with a concave bottom. Each polygonal unit of the transparent fiber-reinforced skeleton contains a transparent ceramic curved armor plate. The gaps between the transparent ceramic curved armor plates and the transparent fiber-reinforced skeleton are filled with the STF shear-thickening coating. The bottom of the overall structure formed by the transparent ceramic curved armor plates, the transparent fiber-reinforced skeleton, and the STF shear-thickening coating is a convex curved surface, and the upper part of the overall structure is also a convex curved surface coated with an epoxy resin coating. This invention uses segmented, interlocking fibers in the armor plates to inhibit the propagation of crack damage, ensuring that the protective capabilities and visibility of other areas are not affected after an impact. Combined with the function of the curved structure, the overall structure is embedded in the curved backplate, forming an embedded structure.

The invention belongs to the field of hydrogen storage materials, and provides a hydride hydrogen storage material and a preparation method thereof. According to the preparation method, a block material is prepared through discharge plasma sintering forming by adopting a multi-level collaborative design of a reactive composite hydride phase formed by magnesium hydride and lithium borohydride, an ordered mesoporous carbon and hexagonal boron nitride composite carrier structure, an atomic layer deposition oxide coating layer, a niobium pentoxide and titanium hydride catalyst and a heat-conducting outer coating; the comprehensive performance that the reversible hydrogen storage mass fraction is 5.5-7.0 wt%, the capacity retention ratio after 50 times of circulation is larger than or equal to 90%, and the temperature gradient in the block is smaller than or equal to 10 DEG C / cm is achieved, and the multiple contradictions between the high hydrogen storage capacity and the block mechanical strength, between the oxide coating layer stability and the hydrogen diffusion rate and between the heat conduction uniformity and the structural integrity are solved. The method has a wide application value in a solid hydrogen storage system.

The application relates to the technical field of batteries and discloses a battery cell and a battery pack. The battery cell comprises a shell, an open end of the shell, a pole group arranged in the shell, the pole group comprising a positive pole sheet, a diaphragm and a negative pole sheet arranged in layers, the diaphragm extending out of the upper side walls of the positive pole sheet and the negative pole sheet, a battery cell cover plate assembly comprising a cover plate and a lower plastic, the cover plate being arranged on the open end, the lower plastic being arranged on the lower surface of the cover plate and in the shell, the lower surface of the lower plastic being provided with a separation part and a pair of limiting parts, the pair of limiting parts being respectively arranged at opposite ends of the lower surface of the lower plastic, the separation part being arranged between the pair of limiting parts, the end area of the separation part away from the cover plate being smaller than the end area of the limiting part away from the cover plate, the length of the separation part being smaller than the length of the limiting part, and the separation part and the limiting part both abutting against the part of the diaphragm extending out of the positive pole sheet and the negative pole sheet. The compression amount of the separation part on the diaphragm is reduced, and the possibility of damage of the separation part to the pole group is reduced.

According to the micro-focus X-ray tube anode target rod and the micro-focus X-ray tube, the anode target rod comprises the metal target rod seat, the diamond rod, the metal target rod head and the spring, the axial thermal expansion amount of the target rod can be reduced, the focus drift phenomenon is further reduced, the focus offset correction difficulty of a system algorithm is reduced, and the service life of the system is prolonged. The reconstruction image quality and the spatial resolution can be improved; the springs can relieve the situation that the target rod base and the target rod head pull welding seams at the two ends of the diamond rod during thermal expansion, and structural failure caused by breakage of the welding seams at the two ends of the diamond rod is avoided.

The invention relates to the technical field of radiators, in particular to a 3DVC radiator with an independent working medium backflow channel. The 3DVC radiator comprises a hot plate and at least one cooling piece with a condensation cavity, a connector and a flow guide piece are arranged in the hot plate, the cooling piece is communicated with a cavity of the hot plate through the connector, the cavity and the condensation cavity form a vacuum cavity, the connector is provided with a flow guide groove, the flow guide groove is connected with the opening end of the condensation cavity, and the flow guide piece is connected with the flow guide groove. A liquid storage capillary structure is arranged on the inner bottom face of the hot plate, and the drainage groove and the liquid storage capillary structure form a working medium circulation channel through a flow guide piece. The scheme provided by the invention has the advantages of optimizing the flow path of the working medium, reducing the accumulation of the working medium, avoiding deformation and structural damage caused by icing expansion, and improving the reliability and the temperature cycle test capability.

The invention relates to a foundation pit slope supporting structure capable of being completely recycled and reused and a construction method. The foundation pit slope supporting structure comprises a plurality of supporting units and ground anchors used for fixing the supporting units to a foundation pit slope. The supporting unit comprises a supporting bottom plate; an assembly structure is arranged on the supporting bottom plate; the assembling structure comprises a buckle plate arranged opposite to one side face of the supporting bottom plate and a baffle arranged on the side, opposite to the buckle plate, of the supporting bottom plate. The baffle and the supporting bottom plate are arranged at intervals, and a drainage groove is formed between the baffle and the supporting bottom plate. Mounting grooves are formed between the buckle plate and the supporting bottom plate at intervals; when the adjacent supporting units are assembled, the baffles are arranged in the mounting grooves to form non-fixed connection; the middle of the supporting bottom plate is further provided with a rivet receding hole used for installing a rivet. Through the recoverable design of the supporting units and the anchor nails, materials are recycled, water pressure generated by rainwater is dredged in time through the drainage grooves in the assembly structure, and the situation that a supporting system is damaged due to water pressure accumulation of a supported soil slope is avoided.

The utility model discloses a detachable maintenance platform for photovoltaic panel relates to the technical field of maintenance, including base, the upper end surface of base is provided with maintenance subassembly and adjusting assembly, and maintenance subassembly includes recess, boss, maintenance board and support block, and the side surface of support block is connected with the lower end surface of maintenance board, and the side surface of boss is connected with the inner wall of recess, and the side surface of boss is connected with the side surface of maintenance board, and recess is set up in the side surface of maintenance board, and two maintenance boards are connected with recess through boss, the utility model has the advantages of: maintenance board realizes quick joint or split through the boss and recess of side surface, can according to the size of photovoltaic panel, arrangement mode flexible adjustment platform length, adapts to the photovoltaic array maintenance demand of different scale, simultaneously, the volume reduces after splitting, is convenient for transportation and storage, especially suitable for the scene such as outdoor photovoltaic power station needing mobile operation.

The utility model belongs to the technical field of air valves, and discloses a seat air valve control device which comprises a shell and a circuit board, the shell comprises an upper cover and a bottom shell, the upper cover covers the bottom shell, the circuit board is arranged in the middle of the upper cover, a massage air valve cavity and a waist support air valve cavity are formed in the bottom shell, a massage air valve is arranged in the massage air valve cavity, and a waist support air valve is arranged in the waist support air valve cavity. A massage air valve is arranged in the massage air valve cavity, a waist support air valve is arranged in the waist support air valve cavity, clamping grooves are formed in the massage air valve cavity and the waist support air valve cavity, clamping pieces are arranged on the massage air valve and the waist support air valve, the clamping pieces are fixed in the clamping grooves, and the massage air valve and the waist support air valve are electrically connected with the circuit board through the clamping pieces; according to the seat air valve control device, an original copper needle and a middle shell are replaced by the ingenious clamping piece, the internal structure of the seat air valve control device is optimized, the clamping piece can clamp the memory metal wire and can be electrically connected with the circuit board, structural faults of the conductive metal piece are prevented, the fault rate of internal components is greatly reduced, cost is saved, and the service life of the seat air valve control device is prolonged. Certainly, due to the special design of the clamping piece, the clamping piece is prevented from moving in the seat air valve control device, a circuit can be connected, and a waist supporting air valve and a massage air valve can be directly controlled conveniently.

The application discloses a kind of adjustable orientation multi-channel plasma discharge device, it is related to multi-channel plasma discharge equipment technical field, including substrate frame, the substrate frame is equipped with discharge channel, the discharge channel is equipped with discharge device, the discharge channel one side is equipped with gas supply device, the gas supply device transports the gas to be ionized to the discharge device, the discharge device is used to ionize the gas provided by the gas supply device into plasma, the discharge channel is rotationally connected with plasma guide plate at the end away from the gas supply device, the plasma guide plate is used to guide the plasma that flows out from the discharge channel.The application can adjust the delivery angle of the plasma that flows out from discharge channel, so as to meet the diversified angle requirement of plasma.

The utility model relates to the technical field of ship collision prevention, in particular to a berthing parking anti-collision assembly for ship traffic, which comprises a fixing mechanism, an anti-collision mechanism and an anti-collision mechanism, the fixing mechanism comprises a fixing plate, a plurality of bolt holes are formed in the outer surface of the fixing plate in an array mode, and hanging rings are symmetrically fixed to the fixing plate. Through a multi-layer buffering structure of the rubber protection frame, the protection plate, the buffering cone barrel, the air bag and the protection air bag frame, step-by-step absorption of impact force is achieved, when a ship makes contact, the rubber protection frame firstly absorbs initial impact force through self deformation, residual impact force is transmitted to the buffering cone barrel through the protection plate, the air bag in the buffering cone barrel is pressed to be shrunk, and therefore the ship is protected. Meanwhile, air pressure is transmitted to the protective air bag frame through the hose, so that the protective air bag frame expands synchronously, and further buffering is achieved through the compressibility of air. The rigid contact risk is remarkably reduced through the multi-stage synergistic effect, and ships and wharf facilities are effectively protected.

The utility model relates to the technical field of coal conveying equipment, and discloses a raw coal bunker separating structure capable of increasing peak regulation flexibility, which comprises a coal bunker body, a plurality of separating beams are arranged in the coal bunker body at intervals along the vertical direction, each separating beam is arranged along the radial direction of the coal bunker body, and two ends of each separating beam are fixedly connected with the inner wall of the coal bunker body; a partition plate is arranged between every two adjacent partition beams. The interior of the coal bunker body is divided into two storage spaces through the partition beam and the partition plate. According to the utility model, through the modular arrangement of the separation beams and the separation plates, the stress strength of the internal bunker structure of the coal bunker can be improved, targeted replacement can be realized during subsequent damage, the maintenance cost and maintenance difficulty are reduced, the shutdown time is shortened, and the coal conveying efficiency is ensured.

The invention belongs to the technical field of composite material repairing, and discloses a repairing method and a repairing device for edge penetration damage of a composite honeycomb sandwich structure, and the repairing method for the edge penetration damage of the composite honeycomb sandwich structure comprises the following steps: firstly, recovering the shape of a lower panel of a to-be-repaired cavity by using an adhesive, and replacing a removed honeycomb core in the to-be-repaired cavity with a replacement core; the upper wet laying layer group is solidified to the replacement core and the upper panel, and the lower wet laying layer group is solidified to the lower panel, so that repairing of the edge penetrating damage of the composite sandwich structure is completed, and repairing of the edge penetrating damage composite sandwich structure is achieved; the core performance of the composite sandwich structure is recovered, due to the fact that the wet laying layer set does not need to be fixed additionally, the edge penetrating damage repairing efficiency and stability are improved, deviation or deflection of the replacement core during installation is avoided, the installation positioning precision of the replacement core in the cavity to be repaired is guaranteed, and the overall performance of the composite sandwich structure after repairing is guaranteed.

The utility model belongs to the technical field of air valves, and discloses a seat air valve control device which comprises a shell and a circuit board, the shell comprises an upper cover and a bottom shell, the upper cover covers the bottom shell, the circuit board is arranged in the middle of the upper cover, a waist support air valve is arranged on the bottom shell, and the waist support air valve is arranged on the waist support air valve. The waist support air valve comprises a single rocker arm, a plug, a reset elastic piece, a memory metal wire and a clamping piece; a plug is arranged at one end of the single rocker arm, and a forward inclined part is arranged close to the plug; the memory metal wire is sleeved on the forward inclined part of the single rocker arm; the reset elastic piece is located on one side of the single rocker arm, and the clamping piece clamps the two ends of the memory metal wire and is connected with the circuit board. The waist support air valve is used for controlling air to pass through the waist support inflation air channel and the waist support deflation air channel, and the waist support service is provided for a seat user.

The present application relates to the technical field of auscultation equipment, and discloses a wearable closed bronchiolitis auscultation detector, which comprises a binding belt and a display controller, further comprises a detector fixedly connected with the binding belt, a clamping sleeve clamped above the detector, four sound collectors arranged on the outer side of the detector, a receiver for collecting connecting lines, a splicing sleeve comprising a set position, when the splicing sleeve is not located at the set position, the two sides of the splicing sleeve are slidingly connected in the interior of the slot shell, when the splicing sleeve is located at the set position, the receiver adjusts the length of the connecting line through the splicing sleeve and the adjusting piece. Through line dynamic adjustment, the rotator of the receiver automatically collects and releases the connecting line with the activity of children, the sleeve block is slidingly arranged outside the straight rod, so that line winding or breakage is avoided, when the splicing sleeve slides to the set position, the sleeve block is connected with the arc block, the length of the line is accurately fine-adjusted through the adjusting piece, different children's chest circumferences are adapted, the skin is neither tightly compressed nor relaxed to cause the displacement of the collector.

This utility model discloses a modified PVC composite hose structure, relating to the field of composite hose technology. It includes an inner layer, a reinforcing layer fixedly connected to the outer circumference of the inner layer, and an outer layer fixedly connected to the outer circumference of the reinforcing layer. A connecting reinforcement assembly is provided between the inner layer, outer layer, and reinforcing layer, and a connecting sealing assembly is provided on the inner side of the inner layer. In the technical solution provided by this utility model, by setting the connecting reinforcement assembly—specifically, by having a first convex ridge engage with a first groove in the inner layer and a second convex ridge engage with a second groove in the outer layer—it replaces simple bonding, significantly enhancing the connection force of the inner, reinforcing, and outer layers. This can resist interlayer tension caused by media pressure fluctuations, frequent bending, and temperature changes, preventing structural failure. Furthermore, the convex ridges and grooves are axially evenly distributed, ensuring balanced interlayer force. The reinforcing ring on the outer side of the outer layer corresponds to the convex ridge and groove positions, further reinforcing the overall structure, improving deformation resistance, and effectively extending the service life of the hose.

The utility model relates to the technical field of automobile auxiliary appliance, especially a parking wedge with high friction force, including wedge body, its characterized by: the upper surface of wedge body constructs and is used for increasing the texture structure of friction force, the wedge body is prepared from polyethylene, the bottom of wedge body is equipped with friction iron sheet structure, the side of wedge body is provided with reinforcing rib, reinforcing rib stretches along the length direction of wedge body, the parking wedge of the application adopts polyethylene wedge body, and is light and weather resistant, the upper surface diamond texture increases tire friction force, the bottom friction iron sheet sets up rectangular array three -dimensional convex, and the ground anchoring is strengthened by bolt fixing, the spring array between iron sheet and wedge body buffers impact, and the adaptive pressure regulating is carried out, the side reinforcing rib optimizes stress, and the compression resistance and deformation resistance are realized, and each structure cooperates to realize efficient antiskid and stable support, and the complex environment is adapted.

This invention belongs to the field of micro-weld joint strength testing technology and discloses an elastomer for push-pull testing equipment. The elastomer includes a base with a guide rail on its surface; a slider slidably mounted on the base via the guide rail; and a vent plate with an air inlet channel and several air outlets. The air inlet channel connects the air outlets to an external air supply device. An elastic element is positioned between the base and the vent plate, facing the slider. The elastic element applies a spring force to the vent plate, ensuring tight contact between the vent plate and the slider, thus fixing the slider. When the external air supply device is activated, high-pressure gas is ejected from the air outlets through the air inlet channel. The gas drives the vent plate to retract, compressing the elastic element and forming an air film between the vent plate and the slider, allowing the slider to slide freely along the guide rail. This design avoids mechanical contact between the pusher assembly and the workpiece, providing buffering and protection, reducing damage to the pusher assembly, and improving its service life.

This invention discloses an integrated mullite / rare earth silicate environmental barrier coating, its preparation method, and its application, belonging to the field of coating preparation technology. The environmental barrier coating is deposited on a C / C composite substrate, and from the surface of the C / C composite substrate outwards, consists of a SiC bonding layer, a mullite intermediate layer, and a rare earth silicate composite surface layer; the rare earth silicate composite surface layer is RE2SiO5-RE2Si2O7-RE3Al5O 12 RE can be Yb, Y, or Lu. The mullite intermediate layer and rare earth silicate composite surface layer are prepared by mixing SiC oxide powder with Al2O3 powder and RE2SiO5 powder with Al2O3 powder, respectively, into two slurries. These slurries are then applied layer by layer to the surface of the SiC bonding layer and dried, followed by in-situ heat treatment to form the composite layer. An in-situ reaction at the interface between the mullite intermediate layer and the rare earth silicate composite surface layer creates a component transition zone, exhibiting a multiphase structure where rare earth dual silicate phases are dispersed within the mullite framework. This environmental barrier coating addresses the technical problem of weak interlayer bonding and easy cracking during thermal cycling in existing coatings.