49results about How to "Easy to fold" patented technology

The utility model provides a kind of foldable stainless steel turnover box, comprising: top frame, first hollow groove is arranged on the top frame through slide bar, hinged seat and support rod, the bottom end of the support rod bottom is rotatably connected with bottom frame through mounting shaft, the second hollow groove that is used in cooperation with support rod is set on the bottom frame, metal guard plate is set on the bottom of the top frame through hinge, metal guard plate is rotatably connected in vertical direction, bottom metal guard plate bottom is connected with bottom frame through hinge, slide plate and plug rod are set in the cavity in the inside of the top frame, the plug hole that is used in cooperation with plug rod is set on the hinged seat. The utility model under the action of hinged seat and slide bar sliding connection and support rod and bottom frame rotatable connection, the convenient folding and unfolding of turnover box is realized, storage space is greatly saved;The cooperation of plug rod and plug hole, in combination with the elastic effect of reset spring, the stability of support rod support state is guaranteed, and the use reliability of box body is improved.

The application belongs to the technical field of folding ladders and discloses a high-strength light-weight composite profile folding ladder with a mistaken touch locking structure, which comprises a base plate, a fixed supporting plate, a stable jacking assembly, a locking and adjusting assembly, a width adjusting assembly and an automatic folding connecting assembly. The stable jacking assembly comprises a sliding plate, and the upper surface of the sliding plate is fixedly connected with a mounting plate at one end. When a better height is needed, the automatic folding connecting assembly can be used for secondary folding, the whole folding ladder can form an inverted V shape, and the height can be temporarily adjusted to better adapt to the working environment. When the width of the working environment is limited, the width adjusting assembly can be used to adjust the width of the folding ladder, thereby greatly improving the practical value of the folding ladder. In the use process of the folding ladder, the stable jacking assembly can be used to support the folding ladder, thereby ensuring the stability of the folding ladder in the working process and improving the safety of the folding ladder.

This utility model provides a steel formwork construction platform for concrete retaining walls, including a platform base plate, a guardrail assembly, and a diagonal bracing assembly. The platform base plate has a bottom frame, with a mesh panel at the top and connecting plates at both ends. The guardrail assembly has side support frames, with L-shaped connecting rods fixedly installed on both sides of the side support frames, the L-shaped connecting rods being rotatably connected to the sides of the bottom frame. The diagonal bracing assembly has a threaded rod, with support tubes threaded to both ends. A hinge is fixedly installed at the end of one support tube, and a mounting seat is fixedly installed at the end of the other support tube, the hinge being rotatably connected to the sides of the bottom frame. A locking mechanism is provided on the inner side of the bottom frame. When the side support frames are perpendicular to the bottom frame, the locking mechanism locks or releases the L-shaped connecting rods from the bottom frame. This utility model saves installation time, has a high space utilization rate due to its foldable design, and is convenient for transportation and storage.

The present application relates to the field of biosynthesis and microbial fermentation engineering technology, in particular to a kind of secretion expression human lactoferrin Yarrowia lipolytica and its construction method and application.The present application provides a kind of secretion expression human lactoferrin recombinant Yarrowia lipolytica, the secretion expression of human lactoferrin in the recombinant Yarrowia lipolytica is guided by secretion signal peptide;The expression of chaperone HAC1, Cne and Pdi1 is simultaneously enhanced.The present application realizes the secretion expression of human lactoferrin in Yarrowia lipolytica, effectively promotes the folding and secretion expression of human lactoferrin by the cooperation of chaperone, significantly improves the yield of human lactoferrin, and has important application value in the industrial scale production of human lactoferrin.

This utility model discloses a dual-motor folding bed, comprising: a backrest board, a first hiprest board, a second hiprest board, a legrest board, a footrest board, a back frame, a leg frame, a back motor, and a leg motor; the backrest board and the first hiprest board are rotatably connected by hinges, and the second hiprest board, the legrest board, and the footrest board are sequentially rotatably connected by hinges; the back frame is disposed on the back of the backrest board and the first hiprest board, and the back motor is disposed within the back frame for driving the backrest board to lift or lower; the leg frame is disposed on the back of the second hiprest board, the legrest board, and the footrest board, and the leg motor is disposed within the leg frame for driving the legrest board to lift or lower; the back frame and the leg frame are rotatably connected.

The utility model relates to drawing equipment technical field discloses a kind of engineering cost drawing equipment, including shell, the inside fixedly connected with baffle of shell, the inside rotationally connected with screw rod of baffle, the top of screw rod is provided with driving mechanism, the outer wall of screw rod is threadedly connected with lifting support, the outer wall fixedly connected with push block of lifting support, the outer wall slidingly connected with of lifting support, the outer wall fixedly connected in the inside of shell, the inside of shell is provided with pivot one, the outer wall of pivot one is provided with torsion spring, one end of torsion spring is arranged in the inside of shell.In the utility model, driving mechanism drives screw rod rotation to promote lifting support sliding lifting, equipment drawing height flexible adjustment is realized;Further, when folding equipment, top plate is closed by connecting rod pulling, when lifting support rises, torsion spring rebound drives top plate to open, to realize the beneficial effect that equipment is conveniently rolled up and moves.

The utility model belongs to deck chair technical field, especially relates to a support foot linkage of folding deck chair and support mechanism, including bed body and be used for supporting the support frame of bed body, the bed body includes the seat frame and backrest that can be relatively folded, and the support frame is arranged on the seat frame, and the support foot is rotationally arranged on the backrest, and the transmission connecting rod is between the support foot and the seat frame, and the transmission connecting rod is rotationally connected with the support foot and the seat frame respectively, the backrest is controlled and is unfolded with the seat frame, and the transmission connecting rod can drive the support foot and the backrest to unfold oppositely, thereby making the support foot can support the backrest, the backrest is controlled and is folded with the seat frame, and the transmission connecting rod can drive the support foot and the backrest to fold oppositely and draw together, the transmission connecting rod is telescopic link, or, a plurality of installation sites are set up on the transmission connecting rod and are connected with the support foot and the seat frame, the utility model's purpose lies in providing a support foot linkage of folding deck chair and support mechanism that is stable in structure and is convenient to store and transport.

This utility model provides a height-adjustable and folding integrated conference chair structure, relating to the field of conference chair technology. It includes a conference chair assembly with a flipping component and an installation / removal component. The assembly includes a seat cushion, with a hydraulic lifting column connected to the bottom of the cushion. A support frame is mounted on the bottom of the hydraulic lifting column, and casters are mounted on the bottom of the support frame. This utility model utilizes a rotating shaft to drive the connecting component to rotate, connecting the backrest to the seat cushion. A limiting rod passes through the connecting component and one of the limiting holes, facilitating positioning and enabling easy folding of the backrest. This facilitates the transport and movement of the conference chair assembly. Furthermore, controlling the hydraulic lifting column to raise and lower the seat cushion facilitates the integrated height-adjustable and folding design of the conference chair assembly, improving its flexibility and practicality.

The utility model discloses a foldable fabric box which comprises a box body, an observation window is fixed to the side wall of the box body, supporting rods are symmetrically fixed to the top end and the bottom end of the inner wall of the box body, sleeves are connected to the outer walls of the supporting rods in a sliding mode, polish rods are rotationally connected to the inner sides of the sleeves, and the inner sides of the polish rods on the two sides are rotationally connected. A groove block is fixed to the outer wall of the polished rod, and a fixing piece is arranged in the groove block. Through the sliding fit design of the polished rod, the sleeve and the supporting rod, convenient folding and rapid unfolding of the box body are achieved, when the box body is unfolded, the polished rod drives the supporting rod to open the top end and the bottom end of the box body, a clamping plate is matched for limiting and fixing the rotating shaft of the polished rod, and a top block is matched for clamping and fixing a groove block, so that the box body has reliable structural stability in the using state; deformation or collapse is effectively avoided, the storage requirement is met, storage, carrying and storage are facilitated, and the space utilization rate and use scene adaptability of the product are greatly improved.

The utility model discloses belong to the warehouse technical field, concretely is a kind of foldable clamping groove structure, including stacking foot, the top fixed mounting of stacking foot has sheet metal U type fastener, the inner chamber of sheet metal U type fastener is rotatably connected with folding pipe by connecting assembly, the inner chamber fixed mounting of sheet metal U type fastener has bearing pipe.The utility model is through the setting of folding pipe and sheet metal U type fastener, not only can make folding storage of goods shelf, reduce the space occupied, facilitate transportation, also can make staff in actual operation can be more convenient, simultaneously still through upper and lower limit stopper, and screw fixed etc., the folding and opening of goods shelf are convenient, convenient operation, firm structure, strong operability.

The utility model discloses a spiral rope woven carpet, including from below to above set bottom antiskid cloth layer, lower braided rope layer and upper braided rope layer in proper order, lower braided rope layer and upper braided rope layer all include the braided rope of continuation, the braided rope includes the braided rope unit of continuation, the braided rope unit is spirally arranged, the bottom antiskid cloth layer, lower braided rope layer and upper braided rope layer are connected through the suture line, the braided rope unit of lower braided rope layer is staggered and is pressed line sewing in the braided rope unit of upper braided rope layer, the spiral rope woven carpet is circular, the braided rope unit is spirally arranged, and the braided rope is flat braided rope. The utility model discloses simple structure adopts two layers of rope to overlap on antiskid cloth, and spiral pattern is formed by sewing, double -layer sewing, and it is not easy to break the line, and it is not easy to scatter the mouth, anti -skid, convenient folding, simple and light, portable, machine washable, good use experience, high production efficiency, stable and durable, and it is beneficial to mass production.

The utility model relates to a leg massage device relates to health care product technical field, its main structure is: massage layer inside has oil storage cavity, a plurality of massage ball is rotatably installed on one side of massage layer body, the other side of massage layer body is fixedly installed in the inner side of bandage, one end of oil injection pipe is connected oil storage cavity through the hole on massage layer body, the other end passes through the bandage and is used as oil injection mouth, and the oil injection mouth is sealed through the detachable sealing plug, the outer side of bandage is fixedly installed with two handles, the outer side of one end of bandage is installed with magic tape hook face, and the inner side of the other end is installed with magic tape nap surface, the utility model discloses through enlarging massage range realizes leg full package massage, can use the essential oil to promote massage efficiency and comfort, and simultaneously need not power drive, ensures the safety of massage process.

This utility model discloses an easy-to-fold high and low dumbbell rowing machine, relating to the field of fitness equipment technology. It includes: a dumbbell rowing machine body; a slide rail assembly for mounting a hip support assembly and a locking folding mechanism; a hip support assembly for supporting the exerciser's hips; and a locking folding mechanism comprising a sliding channel inside the slide rail and a sliding groove at the top of the slide rail and connected to the sliding channel. A locking rod is slidably disposed inside the sliding channel, and an adjusting rod is fixedly disposed on the top right side of the locking rod and slidably disposed inside the sliding groove. A clearance groove for avoiding a pin is provided at the left end of the locking rod. This utility model eliminates the need for multiple standing and squatting movements when folding and unfolding, reducing the difficulty of folding and unfolding and making it more convenient in actual use.

This invention discloses a packaging bag folding mechanism, comprising a frame with a support mechanism for supporting the packaging bag and being retractable to avoid obstruction; a bag ear folding mechanism including a translation worktable, ear plates, and a pressure plate; the translation worktable moving along the length of the frame, with two sets of ear plates arranged along the length of the translation worktable; the pressure plate located above the ear plates; and a pressing component on the translation worktable that drives the pressure plate to move vertically; and a bag body folding mechanism including a positioning block, a stacking plate, and a fixing plate. The positioning block is located at one end of the frame and has a discharge port opened laterally; the fixing plate is located directly above the positioning block; a second moving component on the frame that drives the fixing plate to move; the stacking plate located on the side of the positioning block near the lifting support platform; a third moving component on the frame that drives the stacking plate; and a pusher plate adapted to the discharge port on the side of the stacking plate near the positioning block. This application facilitates the folding of packaging bags of different sizes.

This invention provides a method for preparing military-grade transparent glass membrane materials, belonging to the field of high-performance composite membrane technology. The invention includes the following steps: S1 heat treatment of the base fabric, S2 coating preparation, and S3 post-treatment. In the coating preparation process, the raw materials used include PTFE emulsion, fluorinated ethylene propylene copolymer, silane coupling agent, glass microspheres, and nonionic fluorinated surfactants. The PTFE coating is prepared through impregnation, drying, baking, sintering, and cooling processes. This invention overcomes the limitation of existing PTFE membrane strength enhancement relying on the addition of a single component through synergistic innovation in formulation and process. By precisely proportioning PTFE emulsion, glass microspheres, and additives, and synergistically optimizing process parameters, a balance of multiple properties—mechanical strength, flame retardancy, flexibility, and environmental adaptability—is achieved, solving the technical pain points in existing technologies such as the incompatibility between high strength and high peelability, and the contradiction between flame retardancy and processability.

The utility model discloses a kind of safety devices of windproof pull rod with pull solid, including first pull rod, the both sides of the bottom of the outer surface of first pull rod are uniformly connected with first connecting piece by first bolt fixed connection, the top of first connecting piece inner side is rotatably connected with second connecting piece by second bolt.The safety device of windproof pull rod with pull solid, by the setting of first pull rod, second pull rod and third pull rod, first pull rod is connected with second pull rod by first connecting piece and second connecting piece, third pull rod is connected with first pull rod and second pull rod by third connecting piece and connecting ring, when three, can form stable triangle structure, to enhance the wind resistance of scaffold, second pull rod is arranged in parallel after rotating with first pull rod, third pull rod is housed to the middle of two, collapsible operation, can significantly reduce the space occupation of device in non-use state, avoid the mess caused by pull rod too long, reduce transportation volume, reduce transportation cost.

This invention discloses a design method for a Fresnel-type composite parabolic cylindrical reflector antenna, applicable to the field of microwave energy space transmission, and particularly suitable for use as a large-size antenna operating at a fixed point frequency. The antenna utilizes a parabolic segment between the origin and point B0, and point B... n With point D n The straight line segment between them, and point D n With point B n+1 The parabola segment between and point B N‑1 The straight line segment between point E and point D and point E and point D N The straight segments between them form a composite curve. Extending along the curve's normal with the composite curve as the generatrix, a Fresnel-type composite parabolic cylindrical reflector antenna is obtained. When it needs to be used in an offset-feed mode, a portion of the surface can be truncated according to actual needs. By replacing the ordinary parabolic cylinder with a Fresnel composite parabolic cylinder, the overall thickness of the parabolic cylindrical reflector antenna is reduced, enabling the segmentation, splicing, and folding of large-size parabolic reflector cylinders. This significantly reduces the processing difficulty and cost of large-size parabolic cylindrical reflector antennas, while also facilitating transportation, assembly, debugging, and adjustment.

The utility model relates to a kind of foldable atmosphere control shockproof astringency-removing fresh-keeping box, box and upper cover are provided with fold; Box is provided with vent hole;Upper cover is provided with atmosphere control film;First baffle, second baffle and shock pad are arranged in box;First baffle and second baffle are cross-connected;Integrated atmosphere control, shockproof, astringency-removing function in one, and foldable, suitable for the transportation fresh-keeping box of fruit such as persimmon etc.;It can minimize the extrusion, knock of fruit such as persimmon in storage and transportation process;And inhibit the respiration of fruit by atmosphere control technology, reduce the consumption of nutrient substance;While inhibiting the growth and reproduction of microorganism on the surface and inside of fruit, and reduce the tannin content in fruit such as persimmon, to achieve astringency-removing effect;Further realize the purpose of prolonging the storage period of fruit such as persimmon and improving fruit quality, improve the economic value of fruit such as persimmon;Its box and upper cover are folded, reduce transportation cost, reduce space occupation in transportation process, improve logistics efficiency.

This invention discloses a basket frame with a lower left frame rotatably connected to the left side of the middle frame and a lower right frame rotatably connected to the right side. The upper end of a left linkage rod is rotatably connected to the upper left frame, and the lower end is rotatably connected to the left side of the middle frame. The upper end of a right linkage rod is rotatably connected to the upper right frame, and the lower end is rotatably connected to the right side of the middle frame. A left sliding sleeve is provided on the left linkage rod, and a first left connecting rod is provided between the left sliding sleeve and the lower left frame. A second left connecting rod is provided between the left sliding sleeve and the right linkage rod. A right sliding sleeve is provided on the right linkage rod, and a first right connecting rod is provided between the right sliding sleeve and the lower right frame. A second right connecting rod is also provided between the right sliding sleeve and the left linkage rod. When the upper left and upper right frames rotate relative to each other at their connection point and move closer to the middle frame, the lower left and lower right frames rotate and move closer to the middle frame. This invention also discloses an infant carrier using the aforementioned basket frame. This invention is easy to fold, has strong load-bearing capacity, and has a small folded size.

The utility model discloses a transfer trolley for automobile parts, and aims to solve the problems that an existing transfer trolley is poor in adaptability and large in occupied space, and the parts are prone to damage. Universal wheels are arranged at the bottom of the support frame, and a support rod and a support piece are arranged in an inner cavity of the support frame. Two ends of the frame top are hinged with the first side fence and the second side fence, and a cross beam is detachably connected between the two side fences and is adaptively connected with the side fences through special-shaped connectors. Connecting pieces are arranged between the side fences and the supporting frames, and inclined grooves are formed in the top faces of the supporting frames and matched with the ejector rods. During use, the side fences are turned up, one end of the cross beam is connected, sheet metal parts are placed, and the second stand columns are turned over to support the other end of the cross beam after filling. Different parts can be adapted by adjusting the height of the cross beam, and the side fences can be folded, so that the occupied storage space is reduced. Meanwhile, the supporting pieces are made of elastic materials, the sheet metal parts are effectively protected against damage in the transfer process, and the universality and practicability of the transfer trolley are improved.

The application discloses a foldable water area rescue floating stretcher and relates to the technical field of rescue equipment. The foldable water area rescue floating stretcher comprises a main rod, two support plates, two groups of support assemblies, a folding adjusting assembly, an inflatable float and a safety belt. The two support plates are hingedly connected to the two sides of the main rod through hinges and can rotate around the long axis of the main rod to realize folding or unfolding. Each group of support assemblies comprises a supporting leg, a horizontal rod, a propeller assembly and a universal wheel arranged on the two sides of the horizontal rod. The folding adjusting assembly is arranged between the supporting leg and the support plate and is used for supporting locking when unfolding and limiting when folding. The inflatable float is arranged at the bottom of each support plate. The safety belt is arranged at the corresponding position of the edge of the support plate. The foldable water area rescue floating stretcher has the functions of land pushing, water floating and active propulsion, has a small volume after folding, can be quickly unfolded, is suitable for water area rescue in floods, near seas and the like, effectively reduces physical consumption of rescuers and improves rescue efficiency.

The utility model discloses a kind of boiler reheater pipeline fixing mechanism, including lower mounting seat and upper mounting seat, the bottom of the inside one side of lower mounting seat is equipped with threaded rod, the outside of threaded rod is equipped with the inner thread sleeve of adaptation, the one side of lower mounting seat one end is equipped with handle, and the one end of handle extends to the inside of lower mounting seat and is equipped with the tooth plate of being interlocked with threaded rod, the inner thread sleeve is connected with upper mounting seat each other;The utility model is through the splicing structure of lower mounting seat and upper mounting seat, it is easy to separate and fold during assembly, promote two groups of first clamping seat and second clamping seat away or close, so as to adjust first and then fix according to assembly requirement, and using the sliding arrangement of guide rod and guide pipe, promote the position activity between first clamping seat and second clamping seat, to adjust quickly according to the spacing of U-shaped reheater pipeline, reach the installation and fixed operation of accurate pipe.

This application discloses a floating marine production platform, comprising: a main floating platform; a fisheries system, located on top of a pontoon, including a vertically spaced base and frame connected by a retractable drive column, with a mesh component inside the frame that moves synchronously with the frame; a wave energy capture system, including several energy capture modules evenly arranged along the circumference of the pontoon; a tidal energy capture system, including a turbine located at the bottom of the wave energy capture system; an energy management and storage system, located in a containment cavity, which rectifies and stabilizes the AC power generated by the wave and tidal energy capture systems and feeds it into a DC bus connected to a lithium-ion battery pack; and a collaborative control system that dynamically adjusts the energy storage charging and discharging strategy, calculates the optimal aquaculture depth, and provides feedback to drive the column to move synchronously. This application, through multi-system collaborative design, achieves an organic integration of marine energy development and aquaculture, significantly improving the efficiency of the production platform.

The utility model discloses a portable anti-toppling foldable ladder which comprises two rod bodies, a protection assembly is arranged on one side of each rod body, a folding assembly is arranged between the two rod bodies, and the problems that an existing ladder is insufficient in stability and inconvenient to store are effectively solved through mutual matching of the protection assemblies and the folding assemblies. The protection assembly adopts a meshing self-locking structure of a ratchet wheel, a pawl and an extension spring, automatic limiting can be achieved when the ladder is unfolded, the toppling risk caused by external force or operation shaking is prevented, the use safety is remarkably improved, meanwhile, the adjustable design of a first movable plate and a second movable plate is matched with limiting screw holes, the supporting stability is further enhanced, and the safety of the ladder is improved. The folding assembly is connected with the folding plate in a hinged mode through the rotating rod, the ladder is rapidly folded to be in an attached state, the occupied space is greatly reduced, carrying and storage are convenient, unfolding and folding operation is simplified through cooperation of a limiting bolt and an adjusting opening, and it is ensured that the folding process is smooth and the ladder is firm and reliable after being unfolded.

A folding ladder with handrails comprises a ladder body and a handrail structure. The ladder body comprises two front leg tubes, two rear leg tubes, a folding step structure, an inverted U-shaped support and several rear cross beams. The handrail structure comprises two handrail components. The two handrail components are symmetrically arranged on the left and right sides of the ladder body. The handrail component comprises a fixed rod, a rotating rod and a handrail rod. One end of the fixed rod is fixedly connected with the outer side wall of the rear leg tube. The other end of the fixed rod extends upward and the extending direction is consistent with the rear leg tube. One end of the rotating rod is hingedly connected with the outer side wall of the front leg tube. The handrail rod is hingedly connected between the fixed rod and the rotating rod. When the ladder body is completely unfolded, the handrail rod is parallel to the front leg tube, and the rotating rod is parallel to the fixed rod. The handrail structure of the utility model can be automatically folded and unfolded with the ladder body, and the user does not need to manually operate the handrail structure, so that the folding and unfolding process of the handrail structure is more quick and convenient.

A linear motor inverted pendulum experiment box, including experiment box body and box cover, the box cover is hinged to install in experiment box one side, in the experiment box body respectively is provided with control mainboard device, data interface assembly and movement track assembly, the movement track assembly is installed with sliding seat structure, the support vertical tube is detachably or foldably installed in the middle of the sliding seat structure, at least one side of the sliding seat structure is provided with driving device for driving the sliding seat structure to move on the movement track assembly, an angle encoder is installed on the top of the support vertical tube, and the angle encoder is connected with a swing rod. The utility model manufacturing and use cost is lower, use is not limited by site condition, is convenient for experiment demonstration and observation, and is easy to move to different experiment places and demonstrates, and the reuse effect is good.

The application relates to the field of farmland irrigation technology, in particular to a farmland irrigation rainfall measuring device which comprises a base and a collecting assembly. A water flow channel is arranged in the base, and a flowmeter is arranged on the water flow channel. The collecting assembly comprises a mounting ring and a conical collecting cover. One end of the mounting ring is mounted on the base and communicates with the water flow channel. The end of the collecting cover with a smaller diameter is fixedly connected to the end of the mounting ring away from the base, and the flared end of the collecting cover faces upwards. The device collects rainwater through the collecting cover, measures the water flow through the flowmeter, and obtains the rainfall per unit area by dividing the area of the collecting cover, so that the device has the advantages of simple structure, easy use and scientific basis for farmland irrigation.