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197 results about "Folded structure" patented technology

A thin-walled building structure of the shell type. Folded plate structures consist of flat components, or plates, that are interconnected at some dihedral angle. Structures composed of rectangular plates are said to be prismatic.

Folding display rack

The present application belongs to the field of exhibition display, and particularly relates to a foldable exhibition stand, which comprises corner connecting pieces and middle connecting pieces. The corner connecting pieces comprise upper corner connecting pieces and lower corner connecting pieces, and the long side frame is connected with the upper and lower short side frames through the upper and lower corner connecting pieces at both ends. The middle connecting pieces are located at the middle position of the long side frame and divide the long side frame into two parts. The long side frame can be folded from the middle to the inner side direction of the exhibition frame through the middle connecting pieces. The two long side frames can be folded and stored on the lower short side frame through the corner connecting pieces after being folded from the middle. The present application can directly form one or more folding structures for the overall structure of the exhibition stand, greatly reducing the volume of the product and facilitating transportation. The length of the two long side frames is not limited by the length of the lower frame through the folding function. The present application does not need to be built on site, and can be folded and unfolded as a whole, greatly improving the installation efficiency and being convenient and fast.
Owner:CHANGZHOU LINTEL DISPLAY

Buffering and energy-absorbing ducted fan shell structure

The invention discloses a buffering and energy-absorbing ducted fan shell structure which comprises a paper folding structure, an elastic hinge, a sliding rail, a supporting plate, a ducted outer wall, a ducted inner wall, an inner energy-absorbing layer and an outer energy-absorbing layer. The duct outer wall firstly deforms and absorbs energy; then the internal energy absorption unit, the inner energy absorption layer and the outer energy absorption layer further absorb energy and disperse loads; the inner wall of the duct provides support; wherein the paper folding structure provides rigid support and load dispersion, and the elastic hinge coordinates deformation of the paper folding structure, so that the elastic hinge can drive the paper folding structure to deform, a load transmission path is optimized, and the problem that load transmission is discontinuous when the paper folding structure impacts is solved; the inner energy absorption layer and the outer energy absorption layer are filled with TPU foam materials and PMI foam materials respectively, so that the energy absorption effect is enhanced, and the structural stability can be maintained to a certain extent.
Owner:NANCHANG HANGKONG UNIVERSITY

Bistable origami python-like wave energy power generation device

The utility model discloses a bistable origami python-like wave energy power generation device which comprises an anchoring part, and the anchoring part comprises a buoy. The device head is connected with the anchoring part through an anchoring line; one end of the energy storage part is connected with the device head; one end of the body part is connected with the other end of the energy storage part; wherein the body part is formed by connecting a plurality of sections of Kresling paper folding structures in series, and friction nanometer power generation devices are arranged on the paper folding structures. The friction nanometer power generation device has the advantages that the effective contact area of two different friction layers of the friction nanometer power generation device can be increased, the problem of converting unstable wave energy into stably output electric energy is effectively solved, and the power generation efficiency is improved.
Owner:HUNAN UNIV +1

Integrated quick-mounting and dismounting drilling and repairing machine base and using method thereof

The invention discloses an integrated drilling and workover rig base capable of being rapidly disassembled and assembled and a using method thereof.The base can serve as an integral structure to be loaded on a flat plate transport vehicle for road transportation in the transportation state and comprises a bottom assembly; a top assembly; the front stand column, the rear stand column, the bottom assembly and the top assembly jointly form a parallelogram folding mechanism; the base lifting cylinder is connected between the bottom assembly and the top assembly; in the transportation state, the parallelogram folding mechanism is in the folded state, so that the top assembly is close to the bottom assembly in the height direction, and the overall appearance size of the base meets the height limiting and width limiting requirements of highway transportation. Through the parallelogram folding structure and the integral transportation design, the integral transportation of the base and the accessories in one train is realized. The two-stage hoisting mechanism is used for guaranteeing safe and stable hoisting, the transportation height is remarkably reduced, the road transportation standard is met, and finally the effects of improving the moving efficiency and reducing the operation cost and the safety risk are achieved.
Owner:中石化四机石油机械有限公司 +1

Intelligent edge film folding structure for sofa packaging

The invention provides an intelligent edge film folding structure for sofa packaging, and belongs to the technical field of packaging equipment.The intelligent edge film folding structure comprises a conveying assembly used for conveying a sofa, the conveying assembly is provided with a conveying channel, the intelligent edge film folding structure further comprises a folding assembly, the folding assembly comprises folding grooves, and the two sides of the conveying channel are each symmetrically provided with one folding groove; the folding groove comprises a bottom plate, a folding plate is integrally formed on one side of the bottom plate, the bottom plate is in a right triangle shape, one right-angle side of the bottom plate is perpendicular to the conveying direction and located on the upstream side of the conveying direction, and the folding plate is in a conical cambered surface shape. The inner diameter of the folding plate is gradually reduced towards the downstream side of the conveying direction and is transited into a flat plate shape, and the folding assemblies in specific shapes are arranged on the two sides of the conveying channel, so that various problems caused by film edge extension in sofa sponge packaging are effectively solved.
Owner:NAIJU (HUZHOU) INTELLIGENT MACHINERY EQUIPMENT CO LTD

Portable advertising board

The utility model discloses a portable advertising board, which relates to the technical field of advertising boards and comprises an upper fixing frame, two sides of the top wall of the upper fixing frame are symmetrically provided with positioning holes, two inner side walls of the upper fixing frame are symmetrically and rotatably connected with torsion spring rotating shafts, and the torsion spring rotating shafts are fixedly sleeved with advertising reels; receding grooves are symmetrically formed in the two side walls of the interior of the tensioning supporting frame, spring telescopic rods are fixedly installed on the inner bottom walls of the receding grooves, and inserting plates correspondingly matched with the positioning holes in an inserted mode are fixedly installed on the bottom walls of the two ends of the tensioning supporting frame. The two ends of the tensioning rotating shaft are fixedly installed at the telescopic ends of the two spring telescopic rods correspondingly, and the outer wall face of the tensioning rotating shaft is rotationally connected with a reel induction roller; the folding advertising board is rapidly unfolded through the hinge folding structure, the spring telescopic rod automatically tensions the advertising cloth, the water tank balance weight enhances stability, the problems that a traditional advertising board is tedious in unfolding, wrinkled in picture and prone to toppling over are solved, and the folding advertising board is suitable for outdoor temporary advertising scenes.
Owner:LIAONING UNIVERSITY

A folding active tile hole positioning tool

This utility model discloses a foldable, movable tile drilling and positioning tool, belonging to the technical field of positioning tools. The tool uses pre-laid tiles as a reference, and its components can be freely adjusted according to the site conditions. When the desired position is reached, it is tightened with a fixing nut. A clamp is used to fix the thickened stainless steel base plate and the tile to be drilled together. An oil-based drawing pen is used to draw lines around the stainless steel switch positioning plate or inside the water pipe positioning hole, achieving accurate and rapid drilling. A suitable drilling bit is selected, and the hole is drilled along the drawn lines. After drilling, the tile can be laid. After use, the tool can be folded and stored. Because this device has a modular folding structure, it is convenient to use, does not occupy space, and can be reused multiple times, improving drilling speed and accuracy, resulting in better tile adhesion and aesthetics, reducing tile waste and material waste, achieving material conservation and efficiency, and fully meeting the requirements of homeowners.
Owner:CHINA CONSTR FOURTH ENG DIV CORP LTD +1

Folding structure and display device

The application discloses a folding structure and a display device. The folding structure comprises a frame, a hinge and a sandproof structure. The frame is provided with a plurality of accommodation grooves along a first direction, and the first direction is the axial direction of the folding axis of the folding structure. The hinge is arranged in at least one of the accommodation grooves. The sandproof structure is arranged in at least one of the accommodation grooves, and the sandproof structure is provided with an accommodation space capable of accommodating sand and dust, and the accommodation space is in communication with the space outside the sandproof structure. The sandproof structure is arranged in the folding structure, and the sandproof structure has the accommodation space capable of accommodating sand and dust. When sand and dust enter the folding structure, the sandproof structure can absorb and store the sand and dust in the structure, so that the sand and dust do not interfere with the normal operation of the hinge and the display screen.
Owner:BOE TECHNOLOGY GROUP CO LTD +1

Folding structure of newly-added structural main beam crossing original structural floor slab and newly-added structural interlayer floor slab

The utility model provides a folding structure of a newly-added structural main beam spanning an original structural floor slab and a newly-added structural interlayer floor slab, a reinforcing layer is vertically arranged and wraps the outer side face of an original frame column, and a bottom structural beam and a top heightening beam of the newly-added structural main beam are vertically arranged in the left-right direction. The top heightening beam is arranged on the bottom structural beam, the bottom structural beam and the top heightening beam are both located on the left side of the original frame column and located on the left side of the reinforcing layer and connected with the reinforcing layer, and the right end of the top main rib, the right end of the front waist rib and the right end of the rear waist rib are inserted into the reinforcing layer in the left-right direction. And the lower end of the left main reinforcement, the lower ends of the front and rear stirrups of the U-shaped stirrup, the lower end of the front middle stirrup and the lower end of the rear middle stirrup are vertically inserted into the bottom structural beam. The folding beam structure can solve the problem that the newly-added structural main beam in the newly-added structural interlayer crosses two folding beams with different elevations of the original structural floor slab and the newly-added structural interlayer floor slab, and the economical efficiency and the safety are improved.
Owner:CHINA CONSTR EIGHTH ENG BUREAU TECH CONSTR CO LTD

A semi-holding forming device

The application discloses a half-support forming device and relates to the technical field of packaging machinery equipment. The half-support forming device comprises a rack, a moving assembly and a side folding structure. The moving assembly comprises a rotating shaft, a first moving piece and a first folding piece. The rotating shaft is rotationally arranged on the rack. The first moving piece is in transmission cooperation with the rotating shaft. The first folding piece is arranged on the first moving piece. The first moving piece is used for moving along the conveying direction of paperboards. The first folding piece can move with the first moving piece and is used for folding the front page and / or the back page of the paperboard. The side folding structure is in transmission cooperation with the rotating shaft. The rotating shaft can drive the side folding structure to move. The side folding structure comprises a second folding piece. The second folding piece is arranged on one side of the first moving piece. The second folding piece is used for folding the side page of the paperboard. The side folding structure is continuously driven by the rotating shaft and can adapt to the demand of high-speed continuous production.
Owner:GUANGZHOU NOVA INTELLIGENT EQUIP CO LTD

Cold storage assembly for a cold storage box and cold storage device

PendingCN122650592ACold airRotational axis
The application discloses a cold storage assembly and a cold storage device, comprising a cold storage frame, a cold storage plate and a rotating component; the cold storage frame comprises a plurality of frame units arranged in a horizontal direction, each frame unit is provided with a plurality of mounting grooves, and the cold storage plate is mounted in the mounting grooves; adjacent frame units are hingedly connected through the rotating component, the rotating axis of the rotating component is a vertical axis, and the cold storage frame can be switched to at least a first state and a second state; when the cold storage frame is in the first state, the frame units are distributed in a straight line direction and are aligned, the cold storage frame has a flat structure, and is adapted to be mounted on the side wall of the cold storage box; when the cold storage frame is in the second state, the frame units are relatively rotated and are distributed along a broken line, the cold storage frame has a folded structure, and there is a spacing between adjacent cold storage plates after folding, so as to form a cold air duct for the circulation of cold air, and the cold storage frame is adapted to be mounted in the cold air room of the cold storage box. The cold storage assembly in the application can be flexibly adjusted in structure according to the installation conditions in the cold storage box, and is flexible to use.
Owner:SINO-EUROPEAN AOK-PRS COLD CHAIN EQUIP CO LTD

Steel structure plate hoisting device

The utility model discloses a steel structure board hoist device, including mobile base, the mobile base upper end one side is equipped with the hoist frame that has the folding structure, be equipped with height adjusting board on the hoist frame, the height adjusting board is adjusted hoist height through height adjusting structure, the mobile base other side is equipped with handle frame, the handle frame upper end rotatory mounting has the winding drum, the winding drum is wound and has the steel wire rope, the height adjusting board upper end one side is equipped with the pulley frame, the pulley frame is rotatory mounting and has the pulley block, the steel wire rope is to the steel structure board and is hoisted upward through the pulley block. The utility model discloses through the folding structure can fold and unfold to hoist frame, can reduce the overall volume of device, convenient transportation and storage, through height adjusting structure can realize the lifting and fixed of height adjusting board to satisfy the hoisting demand of different height.
Owner:HUBEI CHUHAO STEEL STRUCTURE ENGINEERING CO LTD

Folding structure of water scraping mop

The utility model belongs to the technical field of cleaning supplies, in particular to a folding structure of a water scraping mop, which comprises a scraping strip fixing seat used for fixing a scraping strip and a connecting rod used for connecting a handle rod, and the connecting rod is connected with the scraping strip fixing seat through a connecting seat. The scraping strip fixing seat is rotationally connected with the lower end of the connecting seat; the upper end of the connecting seat is rotationally connected with the connecting rod; the rotating direction of the connecting base relative to the scraping strip fixing base is perpendicular to the rotating direction of the connecting rod relative to the connecting base. A locking device is not arranged at the hinged position of the upper end of the connecting base, and the connecting rod can rotate relative to the connecting base. A locking device is arranged at the hinged position of the lower end of the connecting base and can limit the rotating angle between the connecting base and the scraping strip fixing base and enable the connecting base and the scraping strip fixing base to be kept at the needed angle. The utility model provides a folding structure of a water scraping mop, which is high in degree of freedom.
Owner:郎桂英

Decorative door plate adjusting mechanism

The utility model relates to the field of indoor decoration, and discloses a decorative door plate adjusting mechanism which comprises a door plate adjusting support, a pressing piece and an adjusting screw rod. The door plate adjusting support is composed of a fixing area and an adjusting area, the fixing area is a mounting plate, and the adjusting area forms an edge folding structure at the top end of the fixing area. A transverse rectangular hole is formed in the adjusting area; the adjusting screw rod is mounted in the rectangular hole; an upper pressing piece and a lower pressing piece are installed on the adjusting screw rod, the two pressing pieces are located on the upper side and the lower side of the adjusting area respectively, and longitudinal strip-shaped holes are formed in the pressing pieces. And a flange nut is mounted at the upper end of the adjusting screw rod. The product door body is connected with the decorative door plate through the decorative door plate adjusting mechanism assembly, the position of the decorative door plate can be adjusted by adjusting the adjusting screw rod, the flat and attractive household integrated cabinet is obtained after the product is embedded, and the problem of product installation environment and product tolerance is solved. The device is simple in structure and convenient to adjust.
Owner:VII PROD LTD

Cuboid columnar filter element with I-shaped section supporting framework

The invention provides a cuboid columnar filter element with a supporting framework with an I-shaped cross section, and belongs to the technical field of filtering and separating equipment, the cuboid columnar filter element comprises a shell, the shell comprises a hollow pipe body structure with a plurality of through holes in the side wall, and the cross section of the hollow pipe body structure is rectangular; the filter membrane is folded and accommodated in the hollow part of the shell; the cross section of the supporting framework is I-shaped, a plurality of through holes are formed in the surface of the supporting framework, and the supporting framework comprises an upper flange plate, a lower flange plate and a vertical web connected between the two flange plates; the supporting framework is arranged in the shell and is used for supporting the filter membrane; the shell with the rectangular section and the I-shaped supporting framework are in nested fit, pipe body deformation is avoided through rigid supporting, the overall rigidity is improved, and therefore the service life is prolonged; the stability of the folding structure of the filter membrane is maintained through the limiting and supporting effects of the flange plates and the web plates of the supporting framework on the filter membrane, so that the filtering effect is ensured, and the situation that the filtering capacity is reduced due to deformation or breakage of the filter membrane is avoided.
Owner:WUHAN TEXTILE UNIV +1

Folding structure and bearing device

The utility model belongs to the technical field of folding carts, and discloses a folding structure and a bearing device, the folding structure comprises a connecting assembly and the bearing device, the connecting assembly comprises a pair of connecting pieces rotationally connected through a rotating shaft, and the connecting assembly has a folding state and an unfolding state; the adjusting assembly is movably connected to the connecting assembly and is provided with a first position and a second position relative to the connecting assembly. When the adjusting assembly is located at the first position, the connecting assembly can be switched between the unfolding state and the folding state, and when the adjusting assembly is located at the second position, the center line of the adjusting assembly intersects with the axis of the rotating shaft so that the connecting assembly can be limited in the unfolding state. According to the folding structure and the bearing device provided by the utility model, the size is smaller, the occupied space is smaller, and the folding structure and the bearing device are convenient to store and transport.
Owner:GOODBABY CHILD PROD CO LTD

Box body and battle table

The utility model relates to the technical field of paper boxes, and discloses a box body and a battle table, comprising: a side frame, two opposite inner walls of which are respectively provided with a first folding line; a second folding line is arranged at the bottom of the top plate, the second folding line extends from one side of the top plate to the other side of the top plate, the second folding line and the first folding line are coplanar, and the two sides, not provided with the second folding line, of the top plate are connected with the inner walls of the side frames correspondingly; when the side frames and the top plate are unfolded, an unfolded structure of the box body is formed; when the side frame is folded along the first folding line and the top plate is folded along the second folding line, a folded structure of the box body is formed. According to the box body, the second folding line and the first folding line are coplanar, the two sides, not provided with the second folding line, of the top plate are connected with the inner walls of the side frames correspondingly, then the top plate can be synchronously folded along with the side frames, the unfolded top plate is in a flat plate shape, and sealing is formed between the top plate and the side frames; and the unfolded top plate and the side frame do not need to be fixed by adhesive tapes or nails, so that the box body is very convenient to assemble.
Owner:ALPHA GROUP CO LTD +2

Systems and Methods for Controlled Deployment of Elastically Foldable Arrays

Systems and methods for elastically foldable structures are described. The high-strain composite thin-shell structures offer high stiffness to mass ratio and increased packaging efficiency, with the additional advantage that their deployment is aided by releasing the strain energy stored in the elastic folds in a controlled quasistatic manner.
Owner:CALIFORNIA INST OF TECH

A size-adaptive folding structure

The utility model provides a size self -adaptation folding structure belongs to paperboard folding device field. It includes frame, the bottom of frame is equipped with bottom plate, the top of bottom plate has the pressing plate that can along vertical direction lift, the side of bottom plate is equipped with paperboard alignment tensile structure, paperboard alignment tensile structure can remove setting on frame, the top of bottom plate still is equipped with the folding pressure equipment structure that can along vertical direction lift and can carry out transverse extension, through paperboard alignment tensile structure adaptation different cross paperboard needs folding part's width and length, through the extension of folding pressure equipment structure adaptation different folding line's length.
Owner:HANGZHOU TIANSHI PRINTING CO LTD

Tunneling angle measuring device for underground tunnel construction

The invention relates to the technical field of mine tunnel engineering measurement, discloses a tunneling angle measuring device for underground tunnel construction, and solves the problems in the prior art. The device comprises a ruler frame and a tripod support, the measuring mechanism comprises a first supporting arm I and a second supporting arm I which are rotationally connected to the inner wall of the ruler frame, telescopic grooves are formed in one side wall of the first supporting arm I and one side wall of the second supporting arm, T-shaped grooves are formed in the inner walls of the telescopic grooves, the arc-shaped ruler is designed to be of a three-section type folding structure, and the folding grooves are used for nesting and storage; the overall length can be shortened by about two thirds after folding, the longitudinal space occupation is greatly reduced, meanwhile, the long supporting arms are designed in a telescopic and rotary fit mode and can be attached to each other in parallel after being contracted, so that the whole device forms a compact and regular wrapping form in a non-working state, and the folding function is achieved. By means of the folding type main body structure, the carrying difficulty in a narrow underground channel is greatly reduced, a single person can carry the folding type main body structure conveniently, and the transition efficiency is improved.
Owner:FUJIAN ZHENGHE HONGKUN MINING CO LTD

Folding structure of bidet

The utility model discloses a bidet folding structure which is arranged on a fixing plate of a bidet, the fixing plate comprises a first plate piece, a second plate piece, a turnover connecting block, a first rotating shaft and a second rotating shaft, and the end faces of the first plate piece and the second plate piece are matched in an inserted mode. The first plate and the second plate are both provided with mounting holes used for assembling the bidet to a pedestal pan, and the inserting face of the first plate and the inserting face of the second plate are provided with a first groove and a second groove respectively. A first shaft hole and a second shaft hole which are parallel to each other are formed in the turnover connecting block, one of the sections of the first shaft hole and the second shaft hole is a round hole, the other section is a kidney-shaped hole, and the direction of the kidney-shaped hole is the same as the inserting direction of the first plate and the second plate; the first rotating shaft and the second rotating shaft penetrate through the first shaft hole and the second shaft hole respectively and are installed on the end walls of the first groove and the second groove respectively. According to the utility model, the split design of the fixing plate of the bidet can be realized, and the fixing plate can be folded into a plurality of parts so as to achieve the purposes of reducing the length and reducing the packaging volume.
Owner:XIAMEN SHENGBORUI TECH CO LTD

Folding C-shaped clamp and using method

The invention discloses a folding C-shaped clamp and a using method, belongs to the technical field of hardware tools, and solves the problems that an existing integrated C-shaped clamp is poor in portability and large in storage occupied space and does not have a folding structure with the clamping performance. The folding C-shaped clamp comprises a left main frame and a right main frame which are the same in specification and are both in an L shape, the lower ends of the left main frame and the right main frame are hinged through a folding joint, four sets of connecting chains and rivets to form a split type main frame structure capable of being folded, and the total length of the folded C-shaped clamp is 1 / 2 of the unfolded state. The right main frame folding joint is provided with a limiting check block, the left main frame folding joint is provided with a matched limiting ring groove, and the limiting check block and the left main frame folding joint are attached to form circumferential limiting after being unfolded. The invention further discloses a using method of the device. The using method comprises the three steps of unfolding and limiting, double-lead-screw clamping and locking and folding and storing. According to the C-shaped clamp, the portability is greatly improved on the premise that the clamping range and stability are guaranteed, the structure is simple, operation is convenient, connection is firm, the machining technology is simple, and batch production is facilitated.
Owner:WEIHAISHIWEILI TOP GRADE TOOL CO

Folding structure of a mirror

Folding structure of a mirror, comprising a cover (300), an electric motor (110), and an axle (201) coupled to the electric motor (110) and configured to rotate the cover (300) relative to a base (20) based on a driving force from the electric motor (110), wherein the axle (201) has a locking ring (220) coupled to the cover (300) and configured to support a load generated when the cover (300) moves upwards or downwards based on a rotation relative to the base (20).
Owner:HYUNDAI MOTOR CO LTD +2

Assembled oat bran PDQ display box

The utility model discloses an assembly style oat bran PDQ display box, including support unit, backing plate, cover plate and angle bead, the support unit can unfold from three-dimensional form into plane mechanism, the support unit includes support bottom plate, support side plate is provided on the side face of support bottom plate, and the support bottom plate is provided with the support side plate. Bearing plates capable of being folded inwards are arranged at the corners of the supporting bottom plate, the multiple supporting units are stacked, and the cover plate comprises a top plate and a surrounding plate arranged on the side face of the top plate which are integrally connected. The display box is scientific and reasonable in structural design, the problem that a traditional display box is complex to assemble is solved through the folding structures of the supporting units and the glue joint design of the corner protectors, the effects of rapid bare-handed assembly and efficiency improvement are achieved, and assembly and rapid deployment are facilitated; the foldable supporting units greatly reduce the transportation size, and the problem that a traditional display box is high in transportation cost is solved.
Owner:INT PAPER (TIANJIN) PACKAGING CO LTD

Shape memory foldable lattice sandwich board satellite structure

The invention relates to a shape memory foldable lattice sandwich panel satellite structure, and belongs to the technical field of design and manufacturing of foldable structures. The structure is composed of a plurality of modular units, and each unit generates a corresponding three-dimensional geometric structure through an algorithm based on a two-dimensional crease pattern. Each structure is integrally formed by a memory alloy material and is connected through a predefined crease, and flexible folding and reliable unfolding are achieved around the crease. The core adopts a classic folding principle, shows obvious lateral compression capacity, can be compactly stored in a folded state, and has good rigidity and bearing capacity after being unfolded. The stacking layout of different units can be optimized in different directions of the space to form multi-layer stacking or complex space combination so as to meet different space constraint and load requirements.
Owner:BEIJING INST OF TECH

Protective shed for constructional engineering

The utility model provides a protective shed for constructional engineering, which relates to the technical field of protective sheds for constructional engineering, and comprises two shed plates, two support legs are arranged on the shed plates, a folding structure is arranged on the two shed plates, and the folding structure mainly comprises connecting plates. The connecting plate is rotationally connected with the two shed plates, two storage grooves are formed in the shed plates, the storage grooves are rotationally connected with the supporting legs, two connecting blocks are arranged on the connecting plate, connecting rods are rotationally connected to the two sides of each connecting block respectively, and the connecting rods are rotationally connected with the shed plates. The protective shed solves the problems that an existing protective shed for constructional engineering is composed of a plurality of metal rods, the metal rods are mostly connected together in a welding mode, and due to the fact that the number of welding positions is large, the process of building the protective shed is complex, and the protective shed is inconvenient to dismantle and reuse.
Owner:HEBEI XIONGAN HENGWEN SUPPLY CHAIN MANAGEMENT CO LTD

Fan cover structure

The utility model discloses a fan cover structure which comprises a front cover, a rear cover and an annular installation sleeve frame, and installation screw holes are formed in a first flat ring of the front cover and a second flat ring of the rear cover. The front side edge and the rear side edge of the annular mounting sleeve frame are both of an infolding structure, the front side edge is of a front infolding structure, and the rear side edge is of a rear infolding structure; the front infolding structure is a three-folding structure, and the transition surface of each folding part is an arc transition surface; the rear infolding structure is a two-fold structure, and the transition surface of each bend is an arc transition surface; mounting convex edges are formed on the front infolding structure and the rear infolding structure; and auxiliary mounting screw holes are formed in the mounting convex edges. The front side edge and the rear side edge of the annular mounting sleeve frame are both of the infolding structures, so that the structural strength can be improved, the used screws and bolts can be hidden, and compared with the mode that the bolts are combined with an annular strap or the bolts are directly used for connection and fixation, the annular mounting sleeve frame is more convenient to use and attractive in appearance.
Owner:FOSHAN JIAOFENGDA ELECTRICAL APPLIANCES CO LTD