27results about How to "Stitched tightly" patented technology

The invention relates to the technical field of lighting lamps, and discloses a modular line lamp easy to disassemble and assemble, the modular line lamp comprises at least one lamp body, the lamp body comprises a shell, a lower light-emitting module and end covers, and the lower light-emitting module is integrally and detachably hung in a cavity defined by the shell and the two end covers; the LED lamp further comprises splicing pieces, the splicing pieces are used for linearly splicing the two lamp bodies, the splicing pieces can be detachably installed on the inner sides of the two ends of shells of the lamp bodies through threaded fasteners, and when the two lamp bodies are spliced, the shells at the adjacent ends of the two lamp bodies and the lower light-emitting modules are tightly spliced respectively. According to the line lamp, the light-emitting areas of the spliced lamp bodies can be tightly spliced in a mode of internally arranging the splicing pieces, so that dark areas are effectively prevented from being generated at the spliced positions of the lamp bodies of the line lamp, and the light-emitting effect is good; the lower light-emitting module which is composed of the main light-emitting components and can be independently assembled in advance and integrally disassembled and assembled is integrally and detachably hung in the shell in a hanging installation mode, assembly is easy, disassembly and assembly are convenient, and disassembly, assembly and maintenance are convenient.

The invention discloses a welding device and a welding method for controller metal shell machining, and relates to the field of metal shell machining. The welding device comprises a bottom plate and a vertical plate, two fixing mechanisms and a welding mechanism are arranged on the bottom plate, the vertical plate is fixedly connected to the top face of the bottom plate, and the two fixing mechanisms are symmetrically arranged with the vertical plate as the center axis. By arranging the fixing mechanism and the first positioning assembly, before welding, when a first driving hydraulic cylinder drives a supporting plate to move downwards, a hinge plate can drive a first hinge rod to vertically move downwards on a first sliding rod, and a first fixing rod on the first hinge rod and an L-shaped positioning plate synchronously move downwards; by arranging the L-shaped positioning plate on the top surface of the fixing frame, the L-shaped positioning plate extrudes and fixes the metal shell plates on the top surface of the fixing frame, dislocation of the two metal shell plates during welding is avoided, the stability in the welding process is improved, the welding accuracy and consistency are ensured, and therefore the strength and durability of the whole structure are enhanced.

The present invention relates to a partition welding method, which belongs to the field of welding technology, and includes the following steps: preparing tooling; assembling an outer ring plate, an inner ring plate and blades; a red sleeve positioning sleeve; welding; welding a cover plate; welding a radial steam seal body; heat treatment; removing the cover plate and the positioning sleeve; separating the partition along the center dividing surface; performing surfacing welding on the center dividing surface; post-heat treatment and the like. The present invention welds two semicircular partitions together to obtain a partition with better integrity, avoids error accumulation caused by separate welding, and has a higher matching accuracy after being installed in a steam turbine. The present invention uses a positioning sleeve to position the two semicircular outer ring plate bodies, so that the outer ring plate bodies are tightly spliced ​​together as a whole, with better integrity, and the outer ring plate is not easily deformed during the welding process. When welding the radial steam seal ring, the cover plate is used to completely cover the blade to effectively prevent welding slag from splashing onto the blade surface and causing damage to the blade.

The utility model discloses a modular composite material splicing structural member, which relates to the technical field of splicing structures and comprises a composite plate, a connecting piece is mounted at one end of the composite plate, a bottom plate is arranged at one end of the connecting piece, a first splicing piece is arranged on the back of the bottom plate, and a second splicing piece is arranged on one side of the first splicing piece. The distance between the clamping blocks and the bottom plate can be adjusted through sliding of the sliding blocks in the sliding grooves, the device can be suitable for connection of materials with different thicknesses, the applicability of the device can be improved, the connection strength of the device can be greatly improved, the protruding blocks of the composite plate are aligned to the clamping grooves of another composite plate, and the protruding blocks are not prone to deformation due to the trapezoidal section. Therefore, the connection strength of the composite material is greatly enhanced.

The utility model discloses a lithium battery with a flame-retardant structure, which comprises a first shell, a second shell and a built-in flame-retardant structure, and the first shell and the second shell can be buckled along a second direction to define an accommodating space for placing a plurality of groups of battery cells. The multiple groups of battery cells are arranged at intervals along the first direction. The built-in flame-retardant structure comprises a flame-retardant inner shell, first flame-retardant rubber and second flame-retardant rubber. The side, facing the second shell, of the first shell and the side, facing the first shell, of the second shell are each provided with a flame-retardant inner shell. And the first flame-retardant rubber is arranged on one side, facing the multiple groups of battery cells, of the flame-retardant inner shell. The second flame-retardant rubber is arranged between every two adjacent groups of battery cells, so that high temperature and flame between the batteries can be blocked when an accident occurs, and fire can be effectively prevented from spreading to the outside through the laid first flame-retardant rubber and the flame-retardant inner shell when the batteries are in thermal runaway or a fire disaster, so that the safety of the batteries and surrounding equipment is protected.

The utility model provides a backlight module and display equipment, relates to the technical field of display, and aims to solve the problem that black lines appear due to alternate flat and curved display of the backlight module. The backlight module comprises a back plate which is provided with a length direction and is provided with a first side and a second side which are oppositely arranged in the length direction; the lamp panel splicing module is arranged on the back plate, the splicing direction of the lamp panel splicing module is the length direction, and the lamp panel splicing module is provided with a first extrusion side and a second extrusion side which are oppositely arranged in the length direction; the two ends of the first elastic assembly are connected with the first side and the first extrusion side respectively, the two ends of the second elastic assembly are connected with the second side and the second extrusion side respectively, and the first elastic assembly and the second elastic assembly are both in a compressed state in the length direction. According to the backlight module, splicing seams caused by repeated switching of splicing and flat-curved display of the backlight module can be effectively reduced.

The utility model discloses an assembly type light steel keel gypsum board wall body structure, a plurality of wall bodies are arranged, each wall body comprises a support and gypsum boards fixedly installed on the outer portions of the two sides of the support, each wall body further comprises sound insulation pads fixedly bonded on the side walls of the two sides of the wall body, the support comprises a pair of channel steel vertical keels, and the channel steel vertical keels are arranged on the support. A transverse supporting keel and a sound insulation pad are fixedly installed at the top and the bottom between the pair of channel steel vertical keels respectively, and a plurality of through keels are installed on the channel steel vertical keels in a series connection mode. A corner supplementing assembly is fixedly installed between the exteriors of the two mutually perpendicular wall bodies, and the corner supplementing assembly comprises an internal corner plate and an external corner plate. The splicing structure has the advantage of being rapid and stable in splicing.

The present technical scheme belongs to the technical field of sewing machines, and specifically relates to a thread trimming device with a double movable knife mechanism and a sewing machine, comprising a first movable knife mechanism, which comprises a first driving member and a first movable knife blade, the first movable knife blade is provided with a needle hole, the needle hole is used for the sewing needle to pass through in the sewing starting stage, and is used for stretching the sewing thread to a specified position; a second movable knife mechanism, which comprises a second driving member and a second movable knife blade, and is used for cooperating with the first movable knife blade to cut the thread; wherein the output ends of the first movable knife mechanism and the second movable knife mechanism are coaxially arranged, the blade of the second movable knife blade is movably fitted on the upper surface of the first movable knife blade, and the blade of the second movable knife blade cuts the thread when it slides over the cutting edge of the front part of the thread guide groove of the first movable knife blade; and further comprising: a thread clamping piece, which is arranged on the sewing machine frame and is located on the inner side of the movement path of the first movable knife blade; the thread is clamped when the needle hole of the first movable knife blade moves to the thread clamping piece position.

The invention relates to a thread take-up mechanism of a sewing machine, a driving guide groove is formed in the middle of a thread take-up lever, the driving guide groove is a long-strip-shaped driving guide groove in the length direction of the thread take-up lever, a roller at the output end of a driving cam is contained in the driving guide groove, and the roller can roll in the driving guide groove in the length direction of the driving guide groove; one end part of the take-up lever is pivoted on the machine head shell through a pivoting part, the free end of the take-up lever penetrates out of a guide groove in the machine head shell, a thread guide hole is formed in the part, on the outer side of the machine head shell, of the free end, and the driving cam is connected with a needle bar driving device through a transmission mechanism; under the condition that the speed of the driving mechanism and the speed of the needle rod are not changed, the take-up and pay-off speed of the take-up mechanism can change along with the height change of the needle rod, especially the speed is gradually increased during final take-up, and equivalently, a tensioning action is generated on an upper thread, so that the stitched stitch is tight and more attractive.

The utility model discloses an assembly type waterproof overhead ground design structure which comprises an assembly base layer. The side surfaces of the plurality of overhead panels are mutually spliced, a waterproof external member is arranged at the splicing part of the overhead panels, and a plurality of sleeve openings in the side direction of the waterproof external member are correspondingly arranged on the overhead panels in a sleeving manner; and the panel support comprises a mounting seat and a mounting side edge which is positioned at the edge of the bottom of the mounting seat and is fixed with the assembly base layer through a bolt, and the mounting seat is fixed on the overhead panel through a bolt. According to the assembly type overhead ground structure, the overhead panels on the side faces of the assembly type overhead ground structure are connected in a linkage and sleeving mode through the waterproof suites, tight splicing and smoothness of the overhead ground structure are guaranteed, and structural components are fast in positioning and convenient and stable to install through a mortise and tenon installation structure that the panel supports, the overhead panels and the waterproof suites are mutually embedded; based on the structure, the waterproof performance of the structure is improved through the application of the wedge-shaped water blocking surface and the hydrophobic material of the waterproof external member.

The utility model relates to the technical field of insulation boards, and discloses a splicable extrusion molding composite insulation board which comprises an insulation board body, a connecting block is fixedly installed on the front face of the insulation board body, and a connecting groove is formed in the back face of the insulation board body. By arranging the first connector, the inserting groove, the second connector and the plug pin, two same insulation board bodies can be transversely spliced, by arranging the connecting block and the first connector, the two same insulation board bodies can be longitudinally spliced, and therefore the insulation board bodies can be conveniently spliced; the insulation board main body is composed of the protective layer, the functional layer and the base plate, the protective layer is composed of the flame-retardant layer and the reinforcing layer, and the functional layer is composed of the heat insulation layer, the sound insulation layer, the sound absorption layer and the insulation layer, so that the heat insulation performance and the heat preservation performance of the insulation board main body are guaranteed, and the sound insulation performance is good; and the cable is not easy to damage and has good flame resistance.

The invention relates to the technical field of photovoltaic modules, and discloses a photovoltaic module with a condensation structure, which comprises a first photovoltaic panel mounting rack and a second photovoltaic panel mounting rack. According to the invention, light rays can be refracted and condensed to the first photovoltaic panel mounting rack by installing the first condensation refraction plate and the second condensation refraction plate, so that the heat transfer performance of the first photovoltaic panel mounting rack is effectively improved, the service life is prolonged, and the use value is increased; meanwhile, a motor is started to drive a worm to rotate, under the action of meshing connection, a worm gear drives a rotating shaft on the inner side to rotate, and the rotating shaft further drives a connecting frame on the outer side and a first condensation refraction plate and a second condensation refraction plate at the top end to start to swing left and right; the angles of the first condensation refraction plate and the second condensation refraction plate can be adjusted according to the trend of the sun, and the refraction angles are continuously changed, so that light rays can be refracted on the photovoltaic panel body at any time, and the photovoltaic panel body is always in a heat transfer operation state.

The invention discloses a modular prefabricated basement exterior wall protection brick and a construction method thereof, and relates to the technical field of building construction. The prefabricated protection brick is composed of a fine aggregate concrete layer and an extruded sheet in the height direction, and a reinforcing mesh is embedded in the fine aggregate concrete layer or between the fine aggregate concrete layer and the extruded sheet. The four side wall surfaces of the prefabricated protection brick are composed of a first group of adjacent side wall surfaces of one two adjacent side wall surfaces and a second group of adjacent side wall surfaces of the other two adjacent side wall surfaces, mortises are formed in the first group of adjacent side wall surfaces of the prefabricated protection brick, and tenons matched with the mortises are arranged on the second group of adjacent side wall surfaces of the prefabricated protection brick. The size precision and quality are better controlled through factory prefabrication, so that the prefabricated protection brick is more tightly attached to the basement outer wall; and high strength and impact resistance of the prefabricated protective brick are ensured. Due to the design of the mortises and the tenons, mortise and tenon joints are arranged on the edges of the prefabricated protection bricks according to modulus, and it is ensured that every two adjacent prefabricated protection bricks are tightly combined after being spliced through the mortise and tenon joints.

The utility model provides a kind of building insulation board with noise-proof function, it is related to building insulation board technical field, comprising: two insulation board bodies, two insulation board bodies are separately provided with insulation layer and sound-absorbing layer, sound-absorbing layer inside is set to honeycomb structure, this kind of building insulation board can be quickly spliced together by splicing assembly, and the process is simple and fast, without manual calibration repeatedly, save a lot of time and energy, and make the splicing between insulation board compact, second, the connection between insulation board body is strengthened by connecting assembly, avoid folding between two insulation board bodies, cause the problem of bulging when using subsequent insulation board wall.

The invention relates to a partition plate welding method, and belongs to the technical field of welding. The outer ring plate, the inner ring plate and the blades are assembled; performing shrinkage fit on the positioning sleeve; welding is conducted; welding a cover plate; welding a radial steam seal body; heat treatment; removing the cover plate and the positioning sleeve; the partition plate is separated along the split surface; surfacing is conducted on the split; post-heat treatment and the like. The two semicircular partition plates are welded after being spliced into a whole, the integrity of the manufactured partition plate is better, error accumulation caused by respective welding is avoided, and the partition plate has higher matching precision after being installed in a steam turbine. The two semicircular outer ring plate bodies are positioned through the positioning sleeve, so that the outer ring plate bodies are tightly spliced into a whole, the integrity is better, and the outer ring plates are not prone to deformation in the welding process. When the radial steam seal ring is welded, the blades are completely covered by the cover plate, so that welding slag is effectively prevented from splashing to the surfaces of the blades to cause damage to the blades.

The utility model relates to cable protection assembly technical field, concretely relates to a battery electric wire protection assembly, including protection assembly, top ring and connecting assembly, including two groups of frames in protection assembly, the outer ring fixed in frame one side and set up in the side ring of frame other side, including the locking bolt of locating piece and the plug -in in locating piece in connecting assembly, the top of each group of frames is fixed with locating piece, and the locking bolt is fixedly connected through two groups of locating pieces between, and the top of both sides side ring is fixed with two groups of straight flute ring, and the outer ring and the side ring in the protection assembly are set up and form the three -dimensional protection structure, the circular ring design of outer ring can all -round cable, and the mechanical collision and friction of outside are resisted, and the straight flute mouth structure of side ring is adapted cable to go in and out, prevents the cable and breaks because of excessive wear and tear at the bending, and the L type air gap and the fillet structure in cooperation frame, the service life of battery cable is prolonged significantly, and the stable connection between the battery and the electric equipment is guaranteed.

This utility model relates to a visual simulation training platform for flexor tendon suturing. Its overall shape is a human hand model, including fingers, palm, and wrist. It also includes: a simulated skin layer mounted on the outer surface of the hand model; grooves on the palm-facing side of the fingers; a bone layer mounted in the grooves of the fingers to simulate the five digits of the human hand; and a tendon mounted in the grooves of the fingers on the surface of the bone layer. The tendon includes a fingertip segment and a root segment, with the fingertip segment connected to the fingertip and the root segment connected to a spring-loaded capacitive pressure sensor via a spring. A certain gap is maintained between the fingertip and root segments. The operation process and results are visualized, enabling effective real-time monitoring of the tension received by the simulated tendon during suturing, and allowing assessment of any defects in the suturing process and the stability of the suturing result based on the tension.

The utility model provides a placing device for a laboratory slant culture medium, which relates to the technical field of edible mushroom culture and comprises a first bottom plate (1), a second bottom plate (2) and a baffle (3), one end of the first bottom plate (1) is fixedly connected with the baffle (3), the other end of the first bottom plate (1) is hinged with the second bottom plate (2) through a hinge (5), and a plurality of test tube limiting grooves (4) are arranged on the upper surface of the second bottom plate (2). The placing device is simple in structure and ingenious in design, stable placing of the test tube slant culture medium is achieved through cooperation of the first bottom plate, the second bottom plate and the baffle, the gradient is convenient to adjust, and operation is easy.

This utility model relates to the field of electric curtain technology, specifically to an electric curtain guide rail, including a guide rail body, multiple mounting mechanisms, multiple recessed plates, and multiple connecting plates. The interior of the guide rail body has a corrugated texture. In use, a slider is placed inside the guide rail body and fixed in place by the multiple connecting plates. The added recessed plates make it easier and tighter to assemble the guide rail body, solving the problem of guide rail jamming and excessive noise caused by improper assembly after transporting in sections. The innovative symmetrical design of the guide rail body allows the motor to be installed vertically or upside down, meeting personalized installation needs. Furthermore, the corrugated texture inside the guide rail body reduces the contact area between the transmission belt and the guide rail body during sliding, reducing friction and noise.

This utility model discloses a high thermal conductivity refractory ceramic plate for kilns, comprising a ceramic plate body, an installation mechanism on the outer surface of the ceramic plate body, and a heat-conducting mechanism fixedly connected to the inner wall of the ceramic plate body. The heat-conducting mechanism includes a fixed frame fixedly connected to the inner wall of the ceramic plate body, and multiple sets of silicon carbide crystal blocks fixedly connected to the outer surface of the fixed frame. This invention relates to the technical field of ceramic plates for kilns. The high thermal conductivity refractory ceramic plate for kilns expands the heat absorption area through the hexagonal silicon carbide crystal blocks outside the fixed frame, rapidly transferring heat. Copper-nickel alloy metal heat-conducting sheets conduct heat to the inner wall of the ceramic plate. Adjacent plates are connected to high-temperature resistant silicone heat-conducting pads via heat-conducting rods, reducing thermal resistance and achieving multi-plate collaborative heat conduction. Combined with a tightly spliced ​​limiting structure, heat is evenly distributed between the plates, improving overall heat conduction efficiency.

The utility model provides a prefabricated concrete member fast assembling mould with prevent leaking pulp structure belongs to prefabricated concrete member technical field, bolt loosening is easy to leak pulp, component and side plate adhesion cause demoulding difficult problem. Including bottom plate, right angle fixed plate, guide cylinder, mould side plate, clamping block, prevent leaking subassembly and demoulding subassembly, the right angle fixed plate is provided with four groups, four groups right angle fixed plate bolt connection in bottom plate four corners, the guide cylinder is provided with a plurality of groups, and a plurality of guide cylinders are fixedly installed outside four right angle fixed plates, the mould side plate is provided with four groups, and every group mould side plate is clamped in the intermediate position of adjacent two right angle fixed plates, the clamping block is provided with eight groups, and every two clamping blocks are fixedly connected on one group mould side plate left and right sides, the prevent leaking subassembly sets up on the bottom plate upper portion, the demoulding subassembly sets up in the right angle fixed plate inside. The utility model has the advantages of preventing leaking pulp, demoulding convenient, reducing component damage etc.

The utility model belongs to the technical field of copper plate wall surface construction, and particularly provides a seamless splicing art copper plate etching wall surface decoration structure which comprises a fixing assembly and a dry hanging piece assembly, the fixing assembly is fixedly installed at the position of a wall surface ring beam, and every two adjacent art copper plates are connected through the dry hanging piece assembly and the fixing assembly. The dry hanging piece assembly comprises a dry hanging piece bottom plate, a double-thread screw and two sectional material dry hanging pieces, the dry hanging piece bottom plate is connected with the fixing assembly through screws, the two sectional material dry hanging pieces are fixedly connected with the two adjacent art copper plates respectively, and the two sectional material dry hanging pieces are connected with the end, close to the bottom, of the dry hanging piece bottom plate through the double-thread screw and locked through nuts. The sides, close to each other, of every two adjacent art copper plates are tightly attached through nuts. According to the utility model, the art copper plate can be conveniently installed and fixed, meanwhile, the safety problems of corrosion and falling of the art copper plate caused by traditional gluing can be avoided, in addition, tight splicing of the art copper plate can be ensured, and the seamless effect is achieved.

The application provides a semi-assembled safety early-release building formwork structure, which comprises a plurality of early-release floor formworks sequentially spliced together through early-release strip-shaped support plates, a plate rail assembly supported below the early-release floor formworks and the early-release strip-shaped support plates, a jacking support device supported below the plate rail assembly, and a wall formwork assembly connected with the outermost early-release floor formwork through a internal corner C groove. The spliced floor formworks and early-release strip-shaped support plates are clamped and supported by the clamp and the joint square tube assembly, so that the floor formworks and the early-release strip-shaped support plates can be more closely spliced together, and the risk of slurry leakage is reduced. The clamp tightly jacks up the joint square tube assembly at the splicing gap between the floor formwork and the early-release strip-shaped support plate, prevents the early-release floor formwork and the early-release strip-shaped support plate from deforming and affecting the flatness after the floor concrete pouring is completed, and avoids problems such as joint misalignment.

The utility model provides a splicing type cable bus duct, which belongs to the technical field of bus ducts and comprises a bus duct body and a splicing cover arranged on one side of the bus duct body. The supporting and guiding ribs are arranged on the outer wall of one side of the bus duct body; the positioning holes are formed in the outer wall of one side of the bus duct body and are close to the vertical direction of the supporting and guiding ribs; the through groove is formed in the splicing cover; the guide groove is formed in the inner side wall of the through groove; the through groove is formed in the outer side wall of the penetrating groove and is close to the vertical direction of the guide groove; according to the utility model, the splicing cover carries out linear guiding movement at the splicing and plugging part of the adjacent bus duct bodies, the plugging part can be limited and corrected, the butt joint tightness and the butt joint precision of the splicing part are ensured, the two positioning blocks are controlled to be close to each other, and the two bus duct bodies move in opposite directions by utilizing thrust, so that the butt joint precision is improved. And the splicing position is inserted more tightly.

The invention discloses a structure of a prefabricated and assembled cable-stayed bridge concrete cable bent tower and a construction method. The problems that a traditional concrete cable bent tower structure is large in cast-in-place workload and long in construction period, and the quality is not easy to guarantee are solved. According to the technical scheme, a cable bent tower foundation, a cable bent tower bearing platform and a cable bent tower body are sequentially arranged from bottom to top; the cable bent tower body is composed of a lower tower column, a middle tower column and an upper tower column. A tower bottom cast-in-place section is arranged between the bottom of the lower tower column and the cable bent tower bearing platform, the lower tower column and the middle tower column are each composed of a plurality of tower column sections, and the upper tower column is composed of a plurality of anchoring sections. A main beam is arranged in the middle of the middle tower column; each tower column section is composed of two first precast block sections and two second precast block sections; the first precast block sections and the second precast block sections are alternately arranged and spliced into a quadrangular frustum pyramid-shaped structure; the anchoring section is of a quadrangular frustum pyramid structure formed by splicing a third prefabricated block section and a fourth prefabricated block section. Stay cables are arranged on the two sides, adjacent to the splicing seam, of the anchoring section.

The invention discloses an assembly type waterproof photovoltaic integrated roof which is formed by splicing a plurality of photovoltaic unit modules arranged in a matrix, each photovoltaic unit module is of a U-shaped plate structure with a U-shaped notch facing backwards, a strip-shaped water guiding groove, an upper inserting groove and a lower inserting groove are formed in the parallel portion of the right side of each photovoltaic unit module, and the upper inserting groove and the lower inserting groove are communicated with each other through the strip-shaped water guiding groove. When a plurality of photovoltaic unit modules are spliced, the bottom of the upper-layer photovoltaic unit module completely covers the top of the lower-layer photovoltaic unit module, the strip-shaped water guiding grooves of the upper-layer photovoltaic unit module and the lower-layer photovoltaic unit module are partially overlapped, and the lower inserting grooves and the upper inserting grooves of the upper-layer photovoltaic unit module and the lower-layer photovoltaic unit module are mutually inserted. And the left side parallel part of the right side photovoltaic unit module extends into the strip-shaped water guide groove of the left side photovoltaic unit module, so that the right side photovoltaic unit module seals and covers the groove opening of the strip-shaped water guide groove of the left side photovoltaic unit module. After a plurality of photovoltaic unit modules are spliced, the strip-shaped water guide grooves are hidden, attractive and tidy, the problems of water leakage and against water are effectively avoided, and the photovoltaic unit module has good wind uplift resistance.