2065 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 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 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 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 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 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 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 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.

A belt conveyor for a coal mine belongs to the technical field of belt conveyors and comprises a rack and a belt arranged on the rack, a tensioning mechanism, a guide mechanism and a driving mechanism are arranged in the middle area of the rack, and the tensioning mechanism, the guide mechanism and the driving mechanism are sequentially arranged in the length direction of the belt conveyor. The belt of the return section sequentially bypasses the driving mechanism, the tensioning mechanism and the guiding mechanism, the driving mechanism is of a double-roller structure, standby application of driving rollers is achieved, driving power is increased, the conveying capacity and the conveying reliability are improved, the driving mechanism, the guiding mechanism and the tensioning mechanism are all arranged in the middle area of the conveyor, and the conveying efficiency is improved. Installation of a driving device, a tensioning device and a belt storage device at the machine head and the machine tail is omitted, the requirement for the installation space is low, the device is more suitable for short-distance conveying, the length of the machine tail is obviously reduced, and lap joint transshipment of the on-site belt conveyor is better facilitated.

The utility model discloses a dual-function material C-FRCM prefabricated slab system easy for circuit and structure lap joint. The C-FRCM prefabricated slab system comprises at least two prefabricated lap joint units, a plurality of prefabricated connecting units and a plurality of prefabricated connecting units, each prefabricated lap joint unit comprises a prefabricated conductive cement base, a flexible conductive fiber grid and rigid conductive grids at the two ends. A first part of the rigid conductive grid is embedded into the prefabricated conductive cement base and is in circuit connection with the flexible conductive fiber grid, and a second part of the rigid conductive grid is located outside the prefabricated conductive cement base; the second parts of the rigid conductive grids of every two adjacent prefabricated lap joint units are in lap joint with each other, circuit and structure connection is completed, and the second parts are wrapped by the cast-in-place conductive cement base. The size of the prefabricated lap joint units can be adjusted according to needs, the prefabricated lap joint units can be in lap joint with one another, circuit lap joint and structure lap joint can be achieved through the rigid conductive grids, and reliability is high; the prefabricated lap joint units are convenient to transport and use, construction is convenient and fast, and the advantages of the ICCP-SS technology can be brought into full play.

The invention relates to the technical field of solar cells, in particular to a solar cell and a photovoltaic module. The solar cell comprises a cell body, a bus grid line, a current collection grid line and a lap joint section. The battery body has a battery surface; the bus grid line is arranged on the surface of the battery, and the length direction of the bus grid line is a first direction; the lap joint section is intersected with the bus grid line; the lap joint sections are connected to the current collection grid lines; wherein one side, deviating from the battery body, of the lap joint section is provided with a plurality of raised parts, the raised parts are raised along the direction away from the battery body, the plurality of raised parts are arranged at intervals along a second direction, and the second direction is intersected with the first direction. According to the solar cell, the plurality of raised parts are arranged on the lap joint section, so that welding pulling-out force which is large enough can be formed between the welding strip and the solar cell during welding, the reliability requirement of a photovoltaic module is further met, and the welding yield and the reliability of the photovoltaic module are improved.

The utility model discloses a coining press for contact lens production, and relates to the technical field of contact lenses. The device comprises a workbench, the top of the workbench is fixedly connected with a vertical plate, the top of the vertical plate is fixedly connected with a plurality of hydraulic telescopic rods at equal intervals, the output ends of the hydraulic telescopic rods penetrate through the vertical plate and are fixedly connected with an upper die, and the top of the workbench is in lap joint with a placing base. And a plurality of lower molds are fixedly connected to the top of the containing base at equal intervals, fixing mechanisms are symmetrically arranged on the top of the workbench, a handle is rotated to drive a clamping block to clamp and fix the containing base, and the risk that the containing base shifts during working is reduced.

The utility model relates to the technical field of railway construction, and provides a drilling-free supporting template adjusting and fixing device which is used for locking supporting templates and a protective wall, the number of the supporting templates is two, the two supporting templates are arranged on the same side of the protective wall in parallel, the length direction of the supporting templates is the same as that of the protective wall, and each supporting template comprises a connecting beam, a limiting plate and a hanging piece, the connecting beam is used for being placed between the two supporting formworks in a lap joint mode. The limiting plates are arranged below the ends of the connecting beams and located on the outer sides of the supporting formworks, and the limiting plates are used for being locked with the supporting formworks. One end of the hanging piece is used for being hooked on the protective wall, and the other end of the hanging piece is connected with the limiting plate close to the protective wall. According to the technical scheme, the problems that in the prior art, when a railway line is laid on the bridge base, positioning holes are generally drilled in the bridge base, the supporting formwork is fixed to the bridge base through cooperation of locking pieces and the positioning holes, construction wastes time and labor, and the construction efficiency is low are solved.

The utility model provides a luminescent glass assembly and a vehicle. The light-emitting glass assembly comprises a glass substrate, a light-emitting component and a cover plate, a containing cavity is formed between the glass substrate and the cover plate, and the light-emitting component is arranged in the containing cavity; the cover plate comprises a lap joint part arranged at the end of the cover plate and a first bonding part adjacent to the lap joint part, the lap joint part abuts against the glass substrate in a sealed mode, and the first bonding part is connected to the glass substrate in a bonded mode. According to the invention, the lap joint part is arranged at the edge of the cover plate and is matched with the first bonding part, the first bonding part can fix the cover plate on the glass substrate and block at least part of light of the self-luminous assembly, and the lap joint part can abut against and seal the glass substrate to further block the light of the self-luminous assembly, so that light leakage of the cover plate is avoided; the local light leakage phenomenon is avoided, the light-emitting uniformity of the light-emitting assembly is improved, and the light-emitting effect of the light-emitting assembly is improved.

The utility model relates to the technical field of epoxy plates, in particular to a high-wear-resistance and high-strength epoxy plate which comprises a fixing seat, the section of the fixing seat is in an L shape, a rubber pad is embedded in the top of the fixing seat, an epoxy plate body is in lap joint with the top end of the rubber pad, threaded holes are formed in the two sides of one end in the fixing seat, and threaded holes are formed in the two sides of the other end in the fixing seat. The epoxy board body is connected with the fixing base in a clamped mode through the connecting mechanism. The connecting mechanism comprises a lap joint assembly, an extrusion fitting assembly, a dragging assembly and a protection assembly, the lap joint assembly is used for enabling the epoxy board main body to be in butt joint with the fixing base, and the extrusion fitting assembly is used for locking the position of the epoxy board main body; according to the utility model, the structure is simple, the operation is convenient, the epoxy board main body can be quickly disassembled and assembled by pressing and then buckling and pulling the epoxy board main body by a worker, no extra structure forms a barrier at the edge of the epoxy board main body, the adjacent epoxy board main bodies can be completely attached together, and the protection effect and the aesthetic property after assembly are ensured.

The invention discloses a construction method of a self-adhesive coiled material in a low-temperature environment, which comprises the following steps: S1, base layer treatment: cleaning the surface of a base layer to ensure that no water, frost and sundries exist; s2, node part treatment: carrying out additional layer treatment on internal and external corners and pipe root parts; s3, adhesive brushing: uniformly brushing the matched adhesive on the surface of the base layer, wherein the coating dosage is 0.4-0.5 kg / m; s4, waiting for curing: standing the base layer coated with the adhesive until the adhesive is cured to a surface dry state, that is, the adhesive touches sticky but no colloid is transferred; the construction method provided by the invention has the beneficial effects that the self-adhesive coiled material can still keep better bonding performance in a low-temperature environment, test data shows that the peel strength of the self-adhesive coiled material and a cement base surface in the environment of-5 DEG C reaches 1.1 N / mm or above, the lasting bonding time exceeds 72 hours, the shear strength of a lap joint of the coiled material in the environment of-10 DEG C reaches 1.6 N / mm, and the self-adhesive coiled material can still keep better bonding performance in the environment of-10 DEG C. The requirement on a base layer is reduced, and the construction quality can still be ensured under the condition that the base layer contains water.

The utility model provides an aluminum sheet surface phosphoric acid anodizing treatment device for a single-lap tensile shear test of an adhesive film, which comprises a reaction tank filled with phosphoric acid electrolyte; the aluminum sheet is arranged at one end in the reaction tank in a hanging manner and is connected with the positive electrode of the power supply; the lead plate is arranged at the other end in the reaction tank in a hanging manner and is connected with the negative electrode of the power supply; the heater is arranged in the reaction tank and is used for heating the phosphoric acid electrolyte; the areas of the lead plate and the aluminum sheet immersed in the phosphoric acid electrolyte are set as S1 and S2 respectively; the range of S1 to S2 is 1: 1-1: 10. By designing the special aluminum sheet surface phosphoric acid anodizing treatment device, instant and small-batch phosphoric acid anodizing treatment on aluminum sheets in a laboratory environment is realized, and the problem that the existing industrial batch production mode is difficult to meet small-scale and high-frequency flexible requirements is solved; and the rapid verification requirement on a small amount and multiple batches of samples in the adhesive film research and development stage is met.

The utility model belongs to the field of cement fluidity detection, and discloses a cement mortar fluidity detection device which comprises a measuring disc, and a vibration mechanism is arranged at the bottom of the measuring disc; the inner side of the outer circular ring is matched with the measuring disc, an inner circular ring is fixed to the inner side of the outer circular ring, and the bottom surface of the inner circular ring abuts against the measuring disc; the measuring mechanism comprises a movable unit and a measuring scale, the movable unit is movably installed on the outer circular ring and located above the inner circular ring, and the measuring scale is installed on the movable unit. Through the arrangement of the outer circular ring and the inner circular ring, the outer circular ring, the inner circular ring and the measuring mechanism can be integrally placed on the measuring disc in a hanging and overlapping manner, so that when the measuring disc needs to be cleaned, loaded and unloaded, the outer circular ring and the like do not interfere with the work of a worker, and the worker can better control the measuring disc.

The utility model relates to the technical field of one-way membrane application suites, in particular to a portable one-way membrane application suite which comprises a cover body and a cover plate used for pressing a one-way breathable membrane into the cover body, a breathable groove is formed in the cover plate, a through hole is formed in the cover body, and a step frame used for being in lap joint with the cover plate is arranged in the through hole. A mounting groove for mounting the one-way breathable film is formed in the side face, facing the cover plate, of the step frame; clamping pieces are arranged on the two sides of the cover plate, clamping grooves allowing the corresponding clamping pieces to be clamped therein are formed in the step frame, pressing pieces are arranged on the two sides of the cover body, and the pressing pieces are used for driving the clamping pieces to deform so as to relieve clamping and fixing of the clamping pieces in the clamping grooves. Through the arrangement of the cover body, the cover plate, the step frame and the mounting groove, when the cover plate is mounted on the step frame, press fitting of the one-way breathable film on the mounting groove can be achieved, and therefore detachable mounting of the one-way breathable film in the application kit is achieved, and the one-way breathable film can be detached and replaced conveniently.