18results about How to "Offset stress" patented technology

The invention relates to a low-temperature liquid medium storage container and a construction and arrangement method of a metal film on the inner wall of the low-temperature liquid medium storage container, and belongs to the technical field of low-temperature liquid medium storage. The structure of the metal film comprises a top surface film, a right side surface film, a bottom surface film, a left side surface film, four transition surface films, a front surface film and a back surface film which are respectively arranged on the top surface, the right side surface, the bottom surface, the left side surface, four transition surfaces, the front surface and the back surface of the annular side surface of the low-temperature liquid medium storage container, the top surface film, the right side surface film, the bottom surface film and the left side surface film are respectively connected with the four transition surface films to form an annular side surface film; and the front film and the back film are connected through the annular side film to form a totally-closed three-dimensional film.

The invention discloses a battery module, which comprises a battery cell group, the battery management system is positioned on the side surface of one end of the battery cell group and is fixedly connected with the battery cell group; the flexible circuit board is positioned at the top of the battery cell group and extends along the length direction of the battery cell group, and a plug electrically connected with a battery management system is arranged at one end of the flexible circuit board; a plurality of L-shaped connecting pieces are arranged on the two sides of the flexible circuit board at intervals, and each connecting piece comprises a first section which extends in the length direction of the battery cell group and is located in the edge of the flexible circuit board, and a second section which extends out of the edge of the flexible circuit board in the width direction of the battery cell group; and a gap is formed between the first section and the flexible circuit board. Compared with the prior art, the flexible circuit board is directly connected with the corresponding socket of the battery management system in an inserted mode through the plug, wire harness collection is omitted, wire harness switching is reduced, the risk of collection loss is reduced, the connection reliability and the collection stability are improved, the manufacturing efficiency is improved, and the production cost is reduced.

The invention relates to the technical field of settlement post-cast strips, in particular to a pre-closed advanced water stop grouting device and method.The pre-closed advanced water stop grouting device comprises a basement top plate, a bottom plate, a cover plate and a grouting sleeve and further comprises a self-adaptive adjusting assembly; the self-adaptive adjusting assembly comprises an inner cylinder, an outer cylinder, a spring, a sealing ring and a pre-tightening force adjusting component, and when the building body settles, the cover plate descends to drive the outer cylinder to descend, and then the spring is extruded; the springs on the two sides generate reverse buffering force after being compressed, the force is transmitted to the cover plate through the outer cylinder, the internal stress of the cover plate caused by differential settlement is effectively counteracted, and it is avoided that a sealing structure at the joint of the cover plate and a basement top plate cracks due to rigid pulling; and after the settlement is stable, pressure grouting is performed through the grouting sleeve, so that the problems of cracking of the cover plate and failure of sealing structures such as a sealant and a waterproof coiled material due to rigid pulling are solved.

The utility model provides a fisheye terminal, which comprises a connecting part, an elastic plugging part and an inserting part which are sequentially arranged, the upper side and the lower side of the elastic plugging part are provided with two surfaces which correspond to each other and are parallel to each other, the two surfaces are respectively concavely provided with blind holes towards the opposite directions, a horizontal connecting wall is formed between the two blind holes, and the horizontal connecting wall is connected with the elastic plugging part. An arc-shaped part bent towards the blind hole in one side is arranged on the horizontal connecting wall in the length direction of the horizontal connecting wall, and the front end and the rear end of the arc-shaped part are disconnected from the horizontal connecting wall. The fisheye terminal provided by the utility model adopts a symmetrical structure, which is more favorable for processing and forming, and the material flow is relatively stable during forming, so that the product is more stable; the terminal is convenient to process on the basis of realizing the functions of the terminal; according to the fisheye terminal with the shape, the elastic contraction and elastic recovery capabilities of the elastic plugging part are increased by using the arc-shaped part, and a supporting block used for supporting the horizontal connecting wall can be arranged during stamping, so that the problem of deformation of the horizontal connecting wall and the side wall of the blind hole is solved.

The invention relates to a vacuum-assisted compression molding method and mold for a nano microporous insulation panel, and the method comprises the following specific steps: S1, preparing a composite glass fiber cloth bag: uniformly mixing organosilicon modified epoxy resin, hydrophobic nano silicon dioxide, diethylenetriamine, an amino silane coupling agent, polyethylene glycol and acetone to prepare coating slurry, and carrying out vacuum compression molding on the composite glass fiber cloth bag to prepare the composite glass fiber cloth bag; dipping a glass fiber cloth bag in the coating slurry to obtain a composite glass fiber cloth bag; s2, preparing composite powder: mixing and stirring fumed silica, an opacifying agent and high silica fibers to obtain nano-microporous composite powder; s3, the pressing forming mold is positioned and overturned; s4, vertically and flatly spreading the cloth bag; s5, charging and sealing; s6, the mold frame is overturned; and S7, compression molding. Through the synergistic effect of the microporous coating structure of the composite glass fiber cloth bag and the vacuum-assisted compression molding process, the nano microporous heat insulation plate which is high in flatness, free of wrinkles, uniform in edge core density and excellent in heat insulation performance is prepared.

The utility model relates to door and window technical field, concretely is the plastic steel door and window with the reinforcing rib in the inside, including the window frame, the inside installation of window frame has the window sash, the window sash is connected with the inside glass through the antiskid batten and installs, the inside of window frame is provided with the reinforcing rib net, the inside wall of window frame is connected with the outside wall of steel lining and installs, the inside of window frame is placed with the reinforcing angle steel. The improved plastic steel door and window, through the inside layer of window frame and add the reinforcing rib net, make the window frame outer frame and the reinforcing rib net in the inside form the overall structure, can effectively prevent the frame body to crack phenomenon, and in the inside of window frame and the window frame corner place are provided with the steel lining and the reinforcing angle steel, can effectively promote the structure strength of window frame whole, solved the existing plastic steel door and window window frame corner place easy to crack, the overall structure strength is low and the problem that easy window frame is received temperature change frame body expansion and contraction, is applicable to the climate changeable area building.

The utility model discloses a hydraulic uncoiler, which comprises a structure main body, the structure main body comprises a bottom plate, one side of the bottom plate is fixedly connected with a back plate, the back plate is provided with a fixed seat, the fixed seat is fixedly connected with the back plate and the bottom plate, a movable part is movably connected in the fixed seat, one side of the movable part is connected with a bearing shaft, and the bearing shaft is fixedly connected with the bottom plate. One end of the pressure wheel is fixedly connected with a bearing shaft, the other end of the bearing shaft is fixedly connected with an uncoiling disc, the uncoiling disc is provided with a collapsible shaft, the collapsible shaft is coaxially and fixedly connected with the uncoiling disc, a plurality of hydraulic columns are arranged on the side face of the collapsible shaft, and the other end of each hydraulic column is fixedly connected with an arc-shaped contact piece. And steel coil pressure data are obtained from the steel coil pressure data and are transmitted back to the controller for processing, the pressure in the hydraulic cylinder is automatically adjusted, real-time adjustment is achieved according to the steel coil condition, and practicability is high.

The present application provides an aluminum-plastic composite film and a preparation method thereof. The aluminum-plastic composite film comprises an aluminum foil layer, a protective layer on one side of the aluminum foil layer, and a heat-seal layer on the other side of the aluminum foil layer. The heat-seal layer is made of a thermoplastic resin material, and the protective layer is made of a heat-resistant resin material. The protective layer comprises a nylon layer close to the aluminum foil layer and a polyethylene terephthalate layer away from the aluminum foil layer. The thickness ratio of the heat-seal layer to the protective layer is less than 2.5, and the thickness ratio of the nylon layer to the polyethylene terephthalate layer in the protective layer is 3-6. The aluminum-plastic composite film of the present application controls the thickness ratio of each layer made of a heat-resistant resin material and a thermoplastic resin material in a specific way, so that the stress on the side of the heat-resistant resin material can offset the stress on the side of the thermoplastic resin material, and the thickness ratio of the nylon layer to the polyethylene terephthalate layer is controlled to ensure the punching performance, thereby realizing an aluminum-plastic composite film with low curling.

The utility model relates to stainless steel grating plate welding technical field discloses a kind of stainless steel grating plate anti-deformation welding devices, including base, the inner wall of base is equipped with clamping mechanism, the clamping mechanism is used to clamp grid plate, the top of the clamping mechanism is equipped with support mechanism, and the support mechanism is used to support grid plate;The clamping mechanism includes fixed plate, and the fixed plate is fixedly connected in the inner wall of base upper portion.In the utility model, motor rotation drives connecting block rotation, connecting block rotation pulls connecting plate, connecting plate pulls slider to thereby drive long plate to move left and right in the outer wall of slide rail, long plate moves and pulls support arm, so that support arm drives rotation of pivot, pivot rotation makes the clamping plate of support arm top gather in the middle, so that the outer wall of clamping plate is always attached to the both sides of grid plate, prevent grid plate position deviation from leading to deformation when welding, fixed rod can adapt to grid plate of different height, improve use range.

The present invention discloses a nanoimprint template and a method for manufacturing the same. The nanoimprint template comprises a substrate and a unit structure formed on the substrate. The substrate comprises: a base (1), a first microstructure array layer (2), a first bonding layer (4), a first flexible layer (11) and a base layer (13). The first microstructure array layer comprises a plurality of first microstructures, and the plurality of first microstructures are separated by first cavities (3). The first bonding layer (4) is arranged above the first microstructure array layer (2) and is bonded to the upper surface of the first microstructure array layer (2) at low temperature. The first insertion layer (5) is arranged on the first bonding layer. The first flexible layer (11) is arranged above the first insertion layer. The base layer (13) is arranged above the first flexible layer (11). The nanoimprint template of the present invention can effectively reduce stress problems generated during the template manufacturing process and the use process.

This invention discloses a black radiation-cooling thin film and its preparation method. The thin film comprises, from bottom to top, a substrate Sub, a black reflective module, and a radiation module. The structure of the black reflective module, from bottom to top, is MD1AD2, where M is a metal layer, D1 is a first dielectric layer, A is a visible light absorption layer, and D2 is a second dielectric layer. The structure of the radiation module, from bottom to top, is (A'1A'2A'3). s L, where A'1, A'2, and A'3 are the first, second, and third absorption layers, respectively, which have absorption in the 8μm-13μm band and high transmission in the 0.3μm-2.5μm band; L is a low refractive index protective layer; and s is the number of stacked periods, s≥1. This invention achieves good cooling performance while maintaining a black color.

The utility model relates to the technical field of batteries, in particular to a battery core central tube, battery core winding equipment, a battery and electric equipment. The battery cell central tube is used for supporting a battery cell of a winding structure, the battery cell central tube comprises a tube body, a mounting hole is formed in the tube body in the first direction, a first threaded section is arranged on the hole wall surface of the mounting hole, and the first threaded section is used for being in threaded connection with a winding needle in the winding process of the battery cell. According to the battery cell central tube, the battery cell winding equipment, the battery and the electric equipment disclosed by the utility model, the phenomena of core pulling and collapse can be effectively prevented, the yield is improved, and the cost is saved.

The invention provides a wafer-level PCB (Printed Circuit Board) packaging structure and a PCB packaging method. The wafer-level PCB packaging structure comprises a packaging wafer and a PCB carrier plate, a metal connecting terminal is arranged on the upper surface of the PCB carrier plate, and the packaging wafer is connected with the PCB carrier plate through the metal connecting terminal; a plurality of pressure sensors are arranged in the packaging wafer and are used for monitoring stress generated in the wafer; a plurality of piezoelectric ceramic units are embedded in the PCB support plate, and the piezoelectric ceramic units are electrically connected with the metal connecting terminals; a controller is arranged in the functional chip in the packaging wafer, is electrically connected with the plurality of pressure sensors and the plurality of piezoelectric ceramic units, and is used for controlling the voltage of the piezoelectric ceramic units according to the stress monitored by each pressure sensor; therefore, the piezoelectric ceramic unit generates deformation compensation to counteract the stress inside the wafer. According to the invention, the structure risk caused by stress can be eliminated while high integration, shorter interconnection and thinner packaging are realized.

The utility model relates to a welding tool, in particular to a welding tool for gas turbine flame tube assembly welding. The utility model aims to solve the problem that the use performance of a flame tube is affected due to the fact that the flame tube is not concentric after being installed and welded in the prior art. The flame tube welding fixture is simple in structure and convenient to operate, the supporting base, the first supporting unit, the second supporting unit and the top cover play a role in positioning and shaping all components of a flame tube, the concentricity of the flame tube is guaranteed, stress in the welding process is effectively counteracted, and welding deformation in the welding process is reduced; the inner circumferential face of the flame tube, the top cover and the supporting base form a cavity, argon is filled into the cavity, the effect of protecting a welding seam is achieved in the welding process, the overall manufacturing precision of the flame tube is further guaranteed, and the use performance of the flame tube is guaranteed. The utility model belongs to the technical field of flame tube welding.

This application relates to the field of pouch battery manufacturing technology and provides a restraining separator, a restraining pressurization device, and a pouch battery production method. The restraining separator of this application includes a separator body. At least one side of the separator body in the thickness direction has a groove, which is adapted to the large surface of the pouch battery. The groove has a connected planar portion and a concave arc portion, with the concave arc portion surrounding the circumference of the planar portion and smoothly transitioning to the planar portion. Along a first direction of the separator body, one side of the concave arc portion corresponds to the electrode thinning area in the pouch battery. When the pouch battery is restrained and pressurized, the restraining separator of this application ensures that the planar portion and the concave arc portion are in full contact with the large surface of the battery. The structure of the concave arc portion effectively suppresses the expansion of the electrode thinning area, counteracts the stress generated by the central area of ​​the large surface on the edges, and ensures uniform stress on the edges of the pouch battery, thereby helping to prevent electrode edge cracking.

The embodiment of the present invention provides a connecting bracket and a wall connecting structure, wherein the connecting bracket includes: a through wire, the through wire includes a fixed section and an adjusting section, a first nut threadedly connected to the through wire is provided between the fixed section and the adjusting section; a pre-tightening member, the pre-tightening member is located between the first nut and the fixed section, one end of the pre-tightening member is fixed, and the other end is in contact with the first nut; a connecting member, the connecting member is connected to the adjusting section. The technical solution provided by the embodiment of the present invention is to tighten the first nut in the direction of the fixed section of the through wire, and the pre-tightening member prevents the first nut from continuing to move, so that a pre-tightening force is generated between the first nut and the pre-tightening member, so that a pre-tensioning force is generated inside the through wire through the pre-tightening member to offset the stress of the through wire in the vertical direction, so that the through wire is in a zero-stress working state, thereby reducing the stress complexity of the connecting bracket and improving the connection safety.

The utility model relates to the technical field of scaffolds, in particular to a socket type ring lock scaffold supporting device which is provided with a ring lock vertical rod, a supporting cross beam and a first pin shaft, the ring lock vertical rod is provided with a first ring lock and a second ring lock, and the supporting cross beam is provided with a supporting cross rod and a bolt shaft sleeve. The bolt shaft sleeve is placed between the first disc buckle and the second disc buckle and fixed through the first pin shaft, and the design of the double disc buckles is adopted in the scheme, so that the installation stability of the bolt shaft sleeve can be improved; according to the design of the structure, when the height difference of the disc buckle vertical rods on the two sides of the supporting cross beam is large, stress generated by deformation of the supporting cross rod can be counteracted through the mode that the supporting cross rod and the bolt shaft sleeve are rotationally connected, the flexibility of the supporting cross beam is improved, and then the overall bearing capacity is improved.

The present invention discloses an intelligent multi-modal bionic interactive wound repair device and a preparation method thereof, and relates to the technical field of medical devices. The device includes a highly adaptable flexible structure, a multi-level gel dressing layer, and a tearable anti-adhesive layer. The highly adaptable flexible structure is made of a flexible material, and is designed with a cross-groove structure on both sides, which is ergonomic, laser-engraved on the surface, and can connect, fix and protect the device architecture; the multi-level gel dressing layer is composed of a bionic three-layer hydrogel embedded with different sensors and indicators, wherein the top layer achieves antibacterial while forming a micromagnetic field to promote absorption and synergistic repair; the middle layer is embedded with drug-loaded microspheres, and the drug is released on demand, and the ultrasonic magnetic field interaction is used for the acute phase, and the sustained release is used for the middle and late phases when there is no intervention; the bottom layer is dual antibacterial, and can be seamlessly adhered to and non-invasively separated from the wound skin; the early infection alarm of the wound can identify, integrate and feedback wound information to achieve functional treatment.