2416 results about "Lap joint" patented technology

The invention discloses an electric power distribution method convenient for maintenance. By arranging a second threaded column (21) and an extrusion plate (22), when the second threaded column (21) rotates, the extrusion plate (22) can be driven to rotate, then the extrusion plate (22) can drive a friction pad (27) to rotate, and when the friction pad (27) is connected with the lower surface of the inner wall of a shell (1) in a lap joint mode, a support plate (17) can be fixed; and by arranging a stop block (28), when the back face of a second protection plate (10) is connected with the front face of the stop block (28) in a lap joint mode, a first threaded column (13) can be more conveniently connected with a second threaded sleeve (14), and therefore the second protection plate (10) can be better fixed. The electric power distribution method convenient for maintenance has the advantages that the structure is compact, the design is reasonable, and the practicability is high.

The automatic production equipment for the U-shaped reinforcing mesh in the box girder comprises a straightening structure, a bending structure and a welding assembly, the straightening structure is arranged on the upstream portion of the bending structure, and the welding assembly is arranged on the downstream portion of the bending structure; the reinforcing steel bars sequentially pass through the straightening structures, the bending structures and the welding assemblies to form an inner U-shaped reinforcing steel bar net. Steel bars are automatically produced to form inner U-shaped steel bars, then the inner U-shaped steel bars are in lap joint with longitudinal steel bars conveyed in the limiting holes, a plurality of lap joint welding spots are welded and fixed through the first welding gun and the second welding gun, the inner U-shaped steel bar mesh with the stable structure is formed, automatic control is achieved in the whole process, and the production efficiency is high; meanwhile, manual intervention is avoided, and the formed inner U-shaped reinforcing mesh is good in consistency, high in strength and suitable for continuous large-scale production.

The invention discloses an I-shaped column-full dry type connection RC beam column joint and a connection method, and belongs to the technical field of building structure engineering. The joint comprises a prefabricated I-shaped column, a stepped beam, a shear connector and a U-shaped connecting steel plate. A long bracket and a short bracket are respectively arranged at the top and the bottom of the I-shaped column; the end part of the step-shaped beam is in an inverted step shape and is provided with an extending section; the shear connector is a long-strip-shaped steel member provided with a screw rod; and the U-shaped steel plate is provided with screw holes which are respectively matched with the shear connector and the beam end screw. During connection, rapid assembly is achieved in the mode that the brackets of the upper column and the lower column are in lap joint, shear key grooves are interlocked, the shear connectors penetrate into the square holes, the beam bodies are supported on the combined brackets, and finally the U-shaped steel plates are used for anchoring. According to the joint, complete dry type operation is achieved, cast-in-place concrete and steel bar welding are not needed, the construction efficiency is remarkably improved, wet operation is reduced, loads can be borne after installation, the overall performance is reliable, and the development requirement of fabricated buildings is met.

The container comprises a container body, top covers and a sealing structure, the container body comprises a top plate, a feeding port is formed in the top plate, the top covers are connected to the top plate in a pivoted mode, the top covers can be closed to the feeding port in an openable mode, the number of the top covers is at least two in the first direction, and the pivoting directions of all the top covers are the same. The top cover comprises a cover plate body and a frame structure arranged on the outer periphery of the cover plate body. The frame structure comprises two transverse parts arranged in the first direction and two longitudinal parts arranged in the second direction. Sealing lap joint between the top covers and the top plate is achieved through the transverse parts, sealing lap joint between the adjacent top covers is achieved through the longitudinal parts, a sealing waterproof area is formed, the sealing waterproof structure is simplified, water can be rapidly drained, rainwater is prevented from flowing into the box body along the joints of the adjacent top covers, goods are prevented from being affected with damp or damaged by water, and the service life of the box body is prolonged. And the sealing performance of the top cover is ensured.

The invention discloses a marine gangway ladder preset time autonomous lap joint control system and a working method thereof. The system comprises an inertial measurement unit and a main control computer; the binocular camera is adopted, multi-sensor fusion is not needed, accurate lap joint point position information is directly obtained, and the method is simple and easy to implement; according to the provided preset-time autonomous lap joint control method, the system adjusting time can be set in advance, and operation and maintenance ship movement caused by waves is efficiently compensated by driving the swing mechanism, the pitching mechanism and the telescopic mechanism to cooperatively move, so that the front end of the offshore gangway ladder accurately follows the expected position of an upper lap joint point in time; the offshore accommodation ladder is lapped to the offshore wind turbine platform within the set lapping time, so that efficient and autonomous lapping of the offshore accommodation ladder and the offshore fixed or floating wind turbine platform is ensured, and the lapping efficiency is improved; the front end of the offshore gangway ladder is in non-contact lap joint with the lap joint point of the offshore wind turbine platform, no special requirement for the lap joint point exists, a landing device does not need to be built, and the maintenance and manufacturing cost of the gangway ladder is reduced.

The invention discloses a method for predicting the mechanical property of a dissimilar metal friction stir lap joint welded joint by fusing physical information, and belongs to the technical field of crossing of material processing and artificial intelligence. The method comprises the following steps that firstly, welding samples under different technological parameters are prepared through experiments, and the mechanical properties of the welding samples are tested; meanwhile, establishing a finite element simulation model, and extracting physical field data such as a temperature field and a stress-strain field; fusing the process parameters and the physical field data to serve as input features, taking the measured mechanical property data as output features, and forming a machine learning training data set; a prediction model is trained by adopting algorithms such as a gradient lifting decision tree and limit gradient lifting; and finally, new process parameters and physical field data obtained through finite element simulation are input, and the mechanical property of the joint can be efficiently and precisely predicted through the model. According to the method, the defects that a traditional trial and error method is high in cost and long in period are overcome, and key technical support is provided for optimization and intelligent design of the dissimilar metal friction stir lap welding process.

The invention relates to the technical field of soft package power batteries, and discloses a soft package module tab automatic bending and leveling device and method.The soft package module tab automatic bending and leveling device comprises a main body support serving as a device bearing framework; the bending assembly comprises a shifting piece, a servo driving unit and a first visual detection unit, the shifting piece is in transmission connection with the servo driving unit, and the signal output end of the first visual detection unit is in communication connection with the control end of the servo driving unit; the leveling assembly comprises a transverse rolling wheel and a longitudinal rolling wheel which are sequentially arranged in the flowing direction of the tabs, and the transverse rolling wheel and the longitudinal rolling wheel are each provided with an elastic pressing unit; and the second visual detection unit is arranged at the downstream station of the longitudinal roller, and the detection area of the second visual detection unit corresponds to the lap joint area of the tab. The defect that the bending effect is influenced due to product difference is compensated according to visual compensation, the tab is prevented from being pressed and deformed in the stretching and retracting process of the shifting piece, the tab is leveled in the transverse direction and the longitudinal direction, the tab is prevented from rebounding after being bent, and therefore it is guaranteed that the tab can achieve the smoother effect.

The utility model discloses a double-track type carrier track transfer device which solves the problem that a swing head of an existing double-track type track transfer device is affected due to the fact that the swing head cannot swing in place in time. The rail transfer device is arranged between a main rail and a branch rail of a work station, the main rail comprises two main rails which are arranged in parallel, the main rails on the inner side are continuously arranged, fractures are formed in the positions, at the inlet end and the outlet end of the work station, of the main rails on the outer side respectively, and the branch rail comprises two branch rails which are arranged in parallel. A channel for a carrier to pass through is formed between the two branch rails; wherein the outer side branch rail and the outer side main rail are connected together through a curved connecting part; comprising a swing head arranged at the outlet end of the work station, one end of the swing head is pivoted to the outlet end of an inner side branch rail, and the other end of the swing head is lapped to an inner side main rail. A pushing piece is arranged at one end of the swing head, extends into the channel towards the outer side and is used for receiving the abutting of the carrier so that the other end of the swing head can be connected to the inner side main rail in a lap joint mode.

The invention discloses an assembly type efficient sound insulation cover convenient to install, and relates to the technical field of sound insulation covers. Comprising a plurality of pieces of main body square steel, the main body square steel are linearly and evenly distributed at equal intervals, jacking mechanisms used for improving the bottom supporting strength are arranged on the inner walls of the main body square steel correspondingly, and assembly type connecting mechanisms used for improving the connecting strength and stability are installed in the main body square steel correspondingly; according to the assembly type efficient sound insulation cover convenient to install, main body square steel is inserted and limited in a penetrating and inserting mode through the assembly type connecting mechanism, the defect that limiting performance is insufficient due to the fact that a lap joint mode is directly used in a traditional structure is overcome, the whole assembly process is simpler and more convenient, rubber pads and expansion water stop strips are arranged at splicing joints, and the assembly efficiency is improved. The vibration transmission of equipment can be blocked, the inherent frequency is kept away from the vibration frequency of the equipment, secondary noise caused by resonance is avoided, meanwhile, through gaps are reduced, the noise is prevented from leaking from the insertion hole position, and the problem of noise leakage is solved.

The invention discloses a loading lap joint device for cold chain transportation and sorting and a using method thereof, and relates to the technical field of cold chain transportation, the loading lap joint device comprises a drawing cold storage module, a cold storage module, a cold storage module, a cold storage module, a cold storage module, a cold storage module and a cold storage module, the drawing cold storage module is slidably mounted on a sliding groove in the bottom of a cold chain vehicle compartment, and a cold storage cavity is formed in the drawing cold storage module; the linkage defrosting mechanism comprises a frame type defrosting scraping plate arranged above the drawing cold storage module, a frost collecting groove is formed in the side edge of the cold storage cavity, and scraped frost water is guided into the frost collecting groove through the defrosting scraping plate; the lap joint interface module is arranged at the front end of the drawing cold storage module and comprises a conveying plate and a temperature adjusting air curtain which are movably hinged, and the temperature adjusting air curtain communicates with the cold storage cavity and the frost collecting groove through an air duct and releases cold air; the control unit is used for monitoring the temperature in the compartment and the platform position and adjusting the air speed of the air curtain to control the cold air circulation amount. The system not only can automatically remove the frost layer in the carriage and effectively reduce the environment temperature during loading, but also can be flexibly butted with a sorting line, so that energy conservation, high efficiency and temperature control guarantee of a cold chain loading link are realized.

The invention belongs to the technical field of water conservancy projects and pumped storage projects, and discloses a layered injection construction method of a micro-stress ECC parting-free hydraulic anti-seepage panel. Aiming at anti-cracking and anti-seepage challenges of a large-scale seamless hydraulic panel, micro-stress high-ductility injection ECC is injected for multiple times in the thickness direction of the micro-stress ECC parting-free hydraulic panel to form a multi-layer composite integral panel, and transverse and longitudinal joints are not arranged; construction cold joints existing in each spraying layer are covered by the subsequent spraying layers, and the construction cold joints of the adjacent spraying layers do not coincide; and the integral micro-stress ECC joint-free hydraulic panel structure is formed by staggering and overlapping. And by means of the crack control design of staggered joint lap joint and twisting-capturing of the ECC layer face, cooperative improvement of structural bearing and crack resistance and seepage resistance is achieved. Compared with a traditional steel-concrete panel and a traditional asphalt concrete panel, the concrete panel has the advantages of being rigid and flexible, high in construction speed, economical, practical, high in deformation adaptability, resistant to void, resistant to freezing, durable and the like, and the problem that a traditional hydraulic panel gives consideration to crack resistance, seepage resistance and safe service is solved.

The invention discloses a pile head treatment method applied to a static load test, and relates to the technical field of prestressed pipe pile static load tests, and the pile head treatment method comprises the following steps: step 1, pile head treatment: carrying out muck cleaning work on a cut pile head; secondly, a buffer protection structure is poured on the pile head through the multifunctional pile head processing device; the multifunctional pile head processing device comprises a diagonal bracing structure in lap joint with the upper opening edge of an inner cavity of a pile head, a baffle falling on the diagonal bracing structure, an inner formwork surrounding the baffle and an outer formwork surrounding the outer edge of the pile head, and the portion between the inner formwork and the outer formwork and the portion above the baffle are used for pouring to form buffer layers; the multifunctional pile head device further comprises arc-shaped steel pile hoops, the two steel pile hoops are spliced and then arranged on one section of the pile head pouring buffer layer of the pipe pile in a sleeving mode, and the steel pile hoops are matched with the buffer layer to form a buffer protection structure. The method has the effect of reducing the probability that the static load test is influenced by the damage of the pile head of the prestressed pipe pile.

The utility model relates to the technical field of heat preservation, in particular to a heat preservation sleeve which comprises a heat preservation sleeve body, a first hook-and-loop fastener and first caulking filler. The first Velcro comprises a first Velcro hook surface, a first lap joint block and a first Velcro rough surface; the hook face of the first hook-and-loop fastener is fixed to the outer side of the first splicing end of the heat preservation sleeve body. The first lap joint block comprises a first fixing part and a first lap joint part, the first fixing part is fixed to the outer side of the second splicing end, and the first lap joint part extends out of the second splicing end; the first Velcro rough surface is arranged on the side, close to the first Velcro hook surface, of the first lap joint part; and the first caulking filler is arranged on the first lap joint part and is located at the seam of the first splicing end and the second splicing end when the rough surface of the first magic tape is adhered to the hook surface of the first magic tape. The problems that in the prior art, when a seam of a heat preservation pipe sleeve is fixed in a sewing thread or hook-and-loop fastener mode, the sealing effect of the seam is poor, and a large amount of heat is exchanged between the seam and the outside can be solved.

The utility model belongs to the technical field of batteries, and discloses a battery shell and a battery cell. The battery shell comprises a cover plate and a shell, the cover plate comprises a body and a lap joint convex part, and the lap joint convex part is convexly arranged at the top of the peripheral side of the body; a containing cavity is formed in the shell and provided with an opening, the cover plate blocks the opening, the lap joint protruding part abuts against the top of the shell, the body is suspended in the containing cavity, the lap joint protruding part is connected with the top of the shell in a welded mode, and the outer edge of the lap joint protruding part is inwards staggered by a preset distance H relative to the outer edge of the side wall of the shell. According to the battery shell and the battery cell provided by the utility model, the outward protruding height of the molten pool can be reduced, and the external dimension of the battery shell is ensured to be within a tolerance range.

The invention discloses an intermediate layer for resistance spot welding of aluminum / steel dissimilar metals and a resistance spot welding method, the intermediate layer is a FeMnCuNi medium-entropy alloy, and the intermediate layer comprises the following components by atomic percent: 20-30% of Fe, 20-30% of Cu, 5-10% of Ni, 5-10% of Ni, and the balance of Fe and inevitable impurities. 20%-30% of Mn; 20%-30% of Cu; the sum of the atomic percentages of all the components is 100%. The method comprises the steps that (1) the aluminum alloy plate and the steel plate serve as welding base materials to be assembled in a lap joint mode, and the middle layer is added to the lap joint area; and (2) through resistance spot welding, a part of the middle layer and the base metal are melted through resistance heat at the lap joint interface, high entropy of nuggets is achieved through atomic diffusion and the high entropy effect, a welding joint with a solid solution as the main part is formed, and the aluminum / steel dissimilar metal composite structure is obtained. Compared with an existing aluminum / steel resistance spot welding technology, high entropy of nuggets is achieved by applying the high entropy effect, generation of brittle-hard phase intermetallic compounds in a welding joint is remarkably reduced, and a high-performance aluminum-steel composite structure is easily obtained.

A unique modified shiplap joint with matching or corresponding reverse curves on opposing edges or ends of a piece of siding, each forming one-half of the joint: an underlap edge, and an overlap edge. The respective curves engage and resist or prevent separation of the edges, particularly under a pre-determined wind load. A fastener channel in the underlap section allows for a nail or fastener to be used, while the nail head is then covered by the adjacent overlap section. The respective edges form an angled gap, which is configured to prevent water or rain from entering.

A table top can include a first table leaf and a second table leaf configured to define a half-lap joint with the first table leaf. The first table leaf and the second table leaf can be configured to form a planar top surface of the table top when coupled to form the half-lap joint. Each one of the first table leaf and the second table leaf can include an upper lobe, a lower lobe, and a pin rotatably connecting the upper lobe and the lower lobe.

The invention belongs to the technical field of powder metallurgy, and provides a laser cladding-based tin-based babbitt metal preparation method which comprises the following steps: preparing a tin-based babbitt metal by adopting laser cladding to obtain a tin-based babbitt metal with determined process parameters; carrying out an orthogonal experiment under the condition of determining the process parameters, and determining the optimal process parameters; and the tin-based babbitt metal is prepared under the condition of optimal process parameters, and the preparation is completed by determining the lap joint rate. By determining the optimal process parameters of the laser power, the scanning rate and the lap joint rate, the tin-based babbitt metal is suitable for laser deposition forming and repairing.

The utility model discloses a non-contact type cell co-culture device, which relates to the technical field of cell culture and comprises an upper-layer frame body and a lower-layer culture dish for arranging lower-layer cells, upper-layer cells planted on a climbing slide are arranged on the upper-layer frame body, the upper-layer frame body is arranged in the lower-layer culture dish in a lap joint mode, and the upper-layer cells and the lower-layer cells are arranged in a non-contact mode. The upper layer frame body comprises an upper surrounding support, a lower surrounding support and an inner side flange, the upper end of the lower surrounding support is connected with the lower end of the upper surrounding support, the lower end of the lower surrounding support is connected with the inner side flange, and an annular frame body with the hollow middle is formed; the inner side flange is arranged on the inner side edge of the bottom of the annular frame body; according to the cell co-culture device, double-layer cells can be effectively observed, and the double-layer cells can be efficiently utilized.

The invention relates to a test tool and method for testing the shear strength of a material interface. The tool comprises a chuck, a fixing block, a base and a sliding block, a guide rail groove is formed in the base, one side of the guide rail groove is connected with the sliding block, and the other side of the guide rail groove is connected with the fixing block; the fixing block is provided with a fixing hole and a fixing block threaded hole, a pin penetrates through the fixing hole, the sample hole and the sliding block hole to fix the sample, and a bolt is fixed to the base through the fixing block threaded hole. The sliding block is provided with a sliding block sliding rail, a sliding block threaded hole and a sliding block hole, and the sliding block sliding rail is arranged in the guide rail groove of the base and fixed through a bolt; the chuck is located on the lower side of the base and serves as a device for connecting the base and the stretcher. According to the invention, the interface shear strength performance test can be carried out on the sample with any thickness, the bonding surface of the sample is always kept parallel to the axial force line in the initial sample mounting process and the tensile test process, and the bonding surface of the sample base material and the lap joint material in the initial test state is prevented from being abnormally damaged.

The invention discloses a corrosion-resistant and wear-resistant composite metal plate, which relates to the technical field of composite metal materials, and is technically characterized by comprising the following steps: firstly, preparing a flux-cored wire, and preparing deposited metal components according to mass percent by using a specific low-carbon steel strip; then, a thick low-carbon steel plate or a low-alloy steel plate serves as a base plate, a double-layer structure is formed through a gradient surfacing technology, a transition layer is prepared according to the proportion, a main wear-resisting layer is formed by fusing and diffusing flux-cored wires and contains various high-hardness wear-resisting phases, the lap joint width is controlled, cooling is conducted, and a surfacing composite layer is formed; the surfacing composite layer is integrally leveled through a press machine, and a semi-finished product is obtained; and finally, mixing organic silicon modified polyester resin and the like to prepare a joint sealing agent, coating the semi-finished product for 3-4 layers, and curing to obtain a finished product. The wear-resistant layer is free of cracks, and the corrosion resistance of the base body is improved.

The embodiment of the invention relates to the field of photovoltaic cells, and provides a photovoltaic module, and the photovoltaic module comprises a back contact cell which comprises a cell sheet body, a fine grid, a welding part, and a lap joint part. The plurality of fine grids are positioned on the battery piece body and extend along a first direction; the welding part is located on the battery piece body, and the welding part is electrically connected with the fine grid; the lap joint part is arranged on at least one side of the welding part relative to the second direction, and the lap joint part is in contact connection with the welding part and the fine grid; the width of the lap joint part in the second direction is gradually reduced in the direction away from the welding part. The embodiment of the invention is at least beneficial to solving the problem that the fine grid is broken due to abutting against the welding strip.

The embodiment of the invention relates to the field of photovoltaic cells, and provides a photovoltaic cell and a manufacturing method thereof, a laminated cell and a photovoltaic module. The grid lines are located on the cell body; the welding part is positioned on the grid line; the lapping part is arranged on one side, close to the grid line, of the welding part, and is in contact connection with the grid line and the welding part; the width of the lap joint part is gradually reduced along the extension direction of the grid line deviating from the welding part; the grid lines, the welding parts and the lap joint parts are of an integrated structure. The embodiment of the invention at least can solve the problem of grid line breakage.

The invention relates to the technical field of photovoltaics, and aims to solve the problems of battery piece warping, welding spot failure, appearance scratching, difficulty in high-density packaging and the like in existing BC battery packaging. Therefore, the photovoltaic module is provided, the photovoltaic module is formed by laminating a front cover plate, a front packaging adhesive film, a plurality of battery pieces, a back packaging adhesive film and a back cover plate which are sequentially stacked, the adjacent battery pieces are in lap joint with each other, the front surfaces of the battery pieces are coated with insulating protective films, electric isolation layers are formed at the lap joint parts of the battery pieces, and the back surfaces of the adjacent battery pieces are connected through welding strips. According to the invention, the isolation and appearance protection of the overlapping part are realized through the front insulating protective film, and the effects of reducing the hidden crack risk and improving the power and appearance quality of the module are realized by combining the imbricated overlapping design.

The invention belongs to the technical field of power grounding, and discloses a safety grounding device for a power system, which comprises an unmanned aerial vehicle body, and a suspension positioning mechanism is mounted at the lower end of the unmanned aerial vehicle body; the multi-point self-locking hanging grounding mechanism comprises a conductive caliper body, a self-locking assembly and an overturning lap joint assembly. The left side of the conductive caliper body is provided with a limiting clamping groove which is clamped with a first cable. The lower side of the conductive caliper body is provided with a synchronous folding and unfolding mechanism. By means of the mode, when the unmanned aerial vehicle body lifts the self-locking assembly through the suspension positioning mechanism to drive the conductive caliper body to conduct lifting operation, the self-locking assembly can drive the left overturning lap joint assembly and the right overturning lap joint assembly to overturn upwards at the same time; and the overturning lap joint assemblies on the left side and the right side can automatically reset downwards to be in lap joint with the second cable and the third cable, and the situation that the unmanned aerial vehicle body needs to drive multiple grounding wires to frequently ascend and descend for hooking operation is avoided.

The invention discloses a full-automatic metal coiled material packaging machine, and belongs to the field of metal coiled materials. Comprising a machining platform and a winding machine body, a first hydraulic rod used for supporting the winding machine body is fixedly connected to the upper surface of the machining platform, and a film covering mechanism used for conducting multi-layer composite wrapping on a coiled material is arranged in the middle of the upper surface of the machining platform; adjusting assemblies used for adjusting the position of the film covering mechanism are fixedly connected to the two sides of the upper surface of the machining platform. Through the arrangement of the film covering mechanism and the wrapping mechanism, when the coiled material is packaged, the to-be-packaged copper foil coiled material is arranged on the bearing cylinder wrapped with the buffer material in a sleeving mode, the first covering assembly is precisely controlled through the adjusting assembly so that the damp-proof film can be attached to the side end face of the coiled material, and two adsorption plates work cooperatively; the film material is tightly attached to the two end faces of the coiled material to form the lap joint area, then the abutting assembly pushes away the redundant film material towards the outer edge, accurate edge alignment and heat sealing reinforcement are achieved, and the problem of surface damage caused by a traditional packaging mode is solved.

The invention discloses a stringer assembly, a stiffened wall plate, a stiffened wall plate assembling method and an aircraft, and belongs to the technical field of aircraft manufacturing. The stringer assembly comprises a cap-shaped stringer and a forming die, the cap-shaped stringer comprises a stringer main body and a lap joint part, the stringer main body extends in the first direction and is provided with a cavity, the forming die comprises a containing part extending in the first direction, the containing part is provided with a containing groove, and the lap joint part is provided with a lap joint part. The containing groove extends in the first direction and is opened in one side of the second direction, the containing groove and the opening of the cavity face the same direction, the stringer body penetrates through the opening of the containing groove and is installed in the containing groove, the end, in the first direction, of the containing groove is closed, and the lap joint part is in lap joint with the forming mold. The cap-shaped stringer is blocked by the closed end of the containing groove of the containing part, it is guaranteed that the cap-shaped stringer cannot penetrate through the containing part and pass through the net size area in the skin, the influence on the surface quality of the skin is reduced, and the forming die cost is reduced.

The invention provides a composite material oil tank and a manufacturing method thereof, relates to the technical field of composite material oil tanks, and greatly simplifies the mold manufacturing and assembling process through the integrated design of a modular numerical control mold and a three-dimensional digital model. The die purchasing and processing cost is greatly reduced through partition die assembly and reuse of the supporting prosthesis, repeated investment of a special core die is avoided through accurate matching of the silicone rubber soft die and the air bag, and the laying quality of corners and narrow parts is improved. Through cooperation of two times of curing and a stepped lap joint structure, defects of fiber wrinkles, cavities, bridging and the like are effectively eliminated, and fiber continuity and resin bonding strength of a complex curved surface area are ensured. The finally formed composite material oil tank shell not only has excellent mechanical properties of high strength, high rigidity and light weight, but also has excellent sealing performance and durability, and an efficient and reliable solution is provided for large-scale application of a composite material oil tank with a complex structure.

The invention relates to the technical field of vehicles, in particular to a front cabin structure assembly and a vehicle. The front cabin structure assembly comprises a front cabin body, the front cabin body comprises a torsion box, a front longitudinal beam and a wheel cover panel, the torsion box comprises a first main body part and second main body parts arranged at the two ends of the first main body part, and the two second main body parts are arranged on the two sides of a vehicle body in the width direction; front longitudinal beams are arranged on the front sides of the two ends of the first main body part in the length direction of the vehicle body, the front longitudinal beams extend towards the front end of the vehicle body, and wheel cover panels are arranged between the second main body part and the front longitudinal beams on the corresponding sides; the torsion box, the front longitudinal beam and the wheel cover panel are of an integrated structure. According to the front cabin structure assembly, the torsion boxes directly extend to the two sides of the vehicle body, transverse collision energy and forward collision energy can be absorbed at the same time so as to adapt to various collision working conditions, and the safety performance of the vehicle is improved; and the use of overlapping edges and connecting pieces is reduced, and the assembly steps are simplified.

The utility model provides a prefabricated assembly type notch plate connecting joint based on a concrete modular integrated building. The prefabricated assembly type notch plate connecting joint comprises a first prefabricated floor slab and a second prefabricated floor slab which are both provided with notches. A transverse main reinforcement of the first prefabricated floor extends out of the left side face towards the left end to form a first connection reinforcement. The stirrups at the notches form connection reinforcing steel bars II; the cross section of the prefabricated floor slab II is L-shaped; the right end of a transverse main reinforcement of the second prefabricated floor extends out of the right side face to form a third connection reinforcement, and a reserved L-shaped notch is formed in the splicing position of the first prefabricated floor and the second prefabricated floor; and through post-pouring of the L-shaped notches, mutual consolidation of the first prefabricated floor slab and the second prefabricated floor slab is achieved, so that the structure has good integrity and anti-seismic performance. According to the MIC box body structure, the L-shaped notches are reserved between the prefabricated floor slabs of the box body, and the connecting steel bars are in lap joint at the notches, so that reliable connection is formed between the two prefabricated floor slabs and the MIC box body through post-pouring concrete at the notches, and the structure has good integrity and excellent anti-seismic performance.