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242 results about "Space frame" patented technology

In architecture and structural engineering, a space frame or space structure (3D truss) is a rigid, lightweight, truss-like structure constructed from interlocking struts in a geometric pattern. Space frames can be used to span large areas with few interior supports. Like the truss, a space frame is strong because of the inherent rigidity of the triangle; flexing loads (bending moments) are transmitted as tension and compression loads along the length of each strut.

Semi-submersible floating platform based on eddy current damping effect

According to the semi-submersible floating platform based on the eddy current damping effect, the multiple buoyancy units and the multiple sets of supporting mechanisms are sequentially and alternately arranged to form an annular space frame structure, and the whole platform has good stability and rigidity. In each buoyancy unit, a heaving plate is mounted at the bottom of the buoy, meanwhile, dampers are innovatively arranged on the edges of the heaving plates, reserved spaces capable of exciting fluid vortexes are formed among the dampers, the buoys and the heaving plates, upwelling water flow of the heaving plates is actively guided through a unique structure, and the effect of generating fluid vortexes is achieved. And a reserved space is utilized to forcibly convert the eddy current into a high-strength and ordered eddy current field. Through the arrangement, the semi-submersible floating platform not only obviously enhances the eddy current dissipation effect and the additional mass effect of the platform to multiply the heaving damping performance, but also forms a synergistic effect with the main heaving plate, so that the vertical movement stability, the storm resistance and the operation safety of the platform in severe sea conditions are effectively improved.
Owner:CRRC TECH INNOVATION (BEIJING) CO LTD +1

Detachable geared-motor assembly for motorizing a strut in a spatial frame

A geared-motor assembly for use in a spatial frame is disclosed. Each of the geared-motor assemblies being selectively attachable and detachable from a manually adjustable strut in a spatial frame. In use, with the geared-motor assemblies detached, the struts can be manually adjusted (e.g., rotated) to, for example, facilitate initial construction of the spatial frame in the operating room, to allow patients to manually adjust the struts if desired, etc. Thereafter, with the geared-motor assemblies coupled to the struts, motorized and / or automated adjustment of the struts according to a treatment plan can be achieved. In use, each of the geared-motor assemblies is configured as a stand-alone device including all of the needed intelligence (e.g., microprocessor, printed-circuit board, etc.) and power supply to control and power the geared-motor assembly so that no external wires or centralized controller is required.
Owner:SMITH & NEPHEW INC +2

All-terrain vehicle packaging structure

The utility model relates to the technical field of vehicles, in particular to an all-terrain vehicle packaging structure which comprises a frame, the frame forms a packaging space and comprises a first top beam, a first supporting frame, a second top beam and a second supporting frame, the first top beam is located at the top of the frame, and the first supporting frame is arranged on the side, facing the interior of the packaging space, of the first top beam; a first containing space is formed between the first supporting frame and the first top beam, the second top beam is located on the top of the frame and basically parallel to the first top beam, the second top beam is provided with a notch, the second supporting frame is arranged on the side, facing the interior of the packaging space, of the second top beam, and a second containing space is formed between the second supporting frame and the notch. The top cover does not occupy the space of the bottom or the side portion in the all-terrain vehicle packaging structure, so that the space utilization rate is increased, and the risk that the top cover scratches other parts can be reduced.
Owner:ZHEJIANG CFMOTO POWER CO LTD

Method for compensating influence of net rack deformation on inner molded surface precision

The invention provides a method for compensating influence of net rack deformation on inner profile precision, and belongs to the technical field of wind tunnel body inner profile construction. A minimum dominating set algorithm is adopted to optimize sensor layout to construct a three-dimensional deformation monitoring network, and a pre-arching compensation optimization function is used to calculate a preset elevation compensation value; in the net rack splicing process, splicing errors are corrected in real time through a structural deformation self-adaptive compensation model, displacement synchronization in the lifting process is ensured through a synchronous hydraulic lifting system and a lifting deformation control algorithm, and after a net rack is in place, the actual geometrical shape of an inner molded surface is obtained through a three-dimensional laser scanning technology. According to the deviation value, comprehensive compensation measures of supporting jig frame elevation adjustment, temporary supporting structure arrangement, follow-up construction load distribution control and net rack node position fine adjustment are adopted for deformation compensation, and the technical problem that due to net rack deformation, the geometric accuracy of the inner profile of the lower hanging cast-in-place slab is difficult to control is solved.
Owner:CHINA CONSTR EIGHT ENG DIV CORP LTD

Programmer for use in a motorized spatial frame

A detachable programmer arranged and configured to be selectively coupled to a motorized strut in an automated and / or motorized spatial frame is disclosed. In some examples, a plurality of detachable programmers are provided, one for each of the plurality of motorized struts in the spatial frame. Thus arranged, each of the plurality of detachable programmers can be configured to supply power and / or control the motorized strut to which it is connected to actuate the motorized strut according to a treatment plan negating, or at least minimizing, the need for any complex, sensitive circuitry housed within the motorized strut. In some examples, the detachable programmer is configured to magnetically couple to the motorized strut via a magnetic or bayonet-style connector.
Owner:SMITH & NEPHEW INC +2

Adjustable shear plate angle locking mechanism

The utility model discloses an adjustable shear plate angle locking mechanism, which belongs to the technical field of shear plates and comprises a machine body, supports are fixedly mounted on the inner walls of two sides of a vertical section of the machine body, lower blades are fixedly mounted at the top ends of the two supports, and a discharge port is formed in the lower end of the outer wall of the vertical section of the machine body. And the support and the lower blade are both located at the upper end of the top end of the discharging opening, and a rotating plate is rotationally installed at the top end of the machine body. After the shearing angles of the rotating plate, the mounting seat and the upper blade are reached, the second driving motor works, so that the two I-shaped frames are far away from each other and extrude the inner walls of the upper end and the lower end of the limiting frame, the inclination angle of the upper blade is locked, and the inclination stability of the upper blade during shearing is ensured; and a plurality of locking blocks are arranged on the outer walls of the opposite ends of the two I-shaped frames of each set and the inner walls of the upper end and the lower end of the limiting frame, the two sets of locking blocks are connected in a clamped mode, the locking effect on the rotating plate after rotation is further enhanced, and then the inclination stability of the upper blade is guaranteed.
Owner:SHANGHAI BINCHEN PRECISION SHEET METAL CO LTD

New hub type connecting joint structure of steel structure net rack

This invention discloses a novel hub-type connection node structure for a steel space frame, comprising: a node disk disposed at the connection node of the steel space frame, wherein the outer edge of the node disk extends outward along the disk surface direction to form multiple first ear plates, and the node disk is coaxially connected to a hub shaft; multiple wing plates connected to the disk surface of the node disk and the circumferential surface of the hub shaft, the wing plates forming second ear plates; and end plates, wherein the end faces of the horizontal members and web members of the steel space frame are respectively connected to the end plates, and the side of the end plates away from the horizontal members and web members respectively forms a third ear plate, the third ear plate of the horizontal member being detachably connected to the first ear plate, and the third ear plate of the web member being detachably connected to the second ear plate. This invention solves the problems of complex welding processes, large node self-weight, and difficulty in aligning members in existing welded hollow sphere nodes of space frame structures.
Owner:CHINA CONSTR EIGHT ENG DIV CORP LTD

A gable frame construction method

This invention discloses a construction method for a gable wall space frame. The middle unit space frame is hoisted onto pre-set concrete columns for positioning, and then guy ropes are installed for temporary support. The positioned middle unit space frame serves as the starting support, and smaller unit space frames are installed laterally using a piecemeal method. The hoisted three-sided gable wall space frame is then connected to the arched portion of the space frame via the piecemeal method, forming a U-shape, resulting in higher structural stability. This combination of hoisting and piecemeal assembly reduces the frequency and risk of high-altitude work for construction personnel. While hoisting is difficult for large-span doorways, combining it with the piecemeal method facilitates crossing doorways and ensures stability. Hoisting large middle units reduces the number of cranes required. Furthermore, the space frame assembled using this method ensures a high stability coefficient and spatial stiffness, exhibiting good seismic performance.
Owner:ZHEJIANG ZHONGNAN CONSTR GRP STEEL STRUCTURE CO LTD +1

Pouring deformation resistant net rack laminated wall structure

The utility model belongs to the technical field of buildings, and particularly relates to a pouring-deformation-resistant net rack laminated wall structure which comprises a prefabricated concrete layer, a heat preservation layer and a cast-in-place layer, a connecting assembly is arranged in the heat preservation layer, a fixing part of the connecting assembly is connected with the prefabricated concrete layer, and the fixing part of the connecting assembly is connected with the cast-in-place layer. A fixing hole in the vertical direction is formed in the hooking portion of the connecting assembly, the first reinforcing steel bar net rack is connected with the hooking portion of the connecting assembly through the connecting reinforcing steel bar, the connecting reinforcing steel bar is of an L-shaped structure, the horizontal end of the connecting reinforcing steel bar is connected with the first reinforcing steel bar net rack in a binding mode, and the vertical end of the connecting reinforcing steel bar penetrates through the fixing hole of the connecting assembly to form hooking fit. The connecting assemblies and the connecting steel bars are additionally arranged, so that transverse bars do not need to be additionally arranged on the laminated slab, the laminated slab is more convenient to store and transport, meanwhile, the first steel bar net rack can be rapidly positioned and form a whole with the prefabricated concrete layer through matching of the connecting assemblies and the connecting steel bars, and the building efficiency is improved.
Owner:BEIJING SHUANGSAI PHARM CO LTD

Determining the energy dissipation mechanism and method of a square steel tube concrete column-composite beam space frame

PendingCN122088173AFully tap into energy consumption potentialGive full play to the advantages of material performanceGeometric CADDesign optimisation/simulationBeam energyRebar
This invention relates to the field of seismic resistance technology for spatial frame structures, and discloses a method for determining the energy dissipation mechanism of a steel-concrete composite column-composite beam spatial frame. The energy dissipation mechanism includes steel beams, steel-concrete composite columns, and reinforced concrete slabs. The steel beams are welded and fixed to the steel-concrete composite columns via reinforcing rings, and the steel beams are fixedly connected to the reinforced concrete slabs via studs. Tie bars are provided at the ends of the steel-concrete composite columns. The ratio of the flexural bearing capacity of the steel beams to that of the steel-concrete composite columns is within the range of 0.42 to 1.05. By introducing the ductile damage parameter of the steel, combined with the inter-story drift angle, cumulative energy dissipation, beam-column energy dissipation ratio curve, and finite element calculation results of stiffness damage of the spatial frame, the energy dissipation characteristics and energy dissipation mechanism type of the structure are determined. This invention aims to solve the technical problems in the prior art where the steel-concrete composite columns do not form sufficient compression-bending hinges for energy dissipation during seismic resistance, easily leading to collapse, and the technical problems of using beam energy dissipation mechanisms in seismic design while rarely considering column energy dissipation.
Owner:CENT SOUTH UNIV +3

Foldable and adjustable photovoltaic engineering cast-in-place pile embedded bolt positioning tool

The utility model relates to the technical field of photovoltaic engineering cast-in-place pile bolt positioning, in particular to a folding adjustable photovoltaic engineering cast-in-place pile embedded bolt positioning tool which comprises a U-shaped bolt, a spacing frame and a fixing assembly. Two sets of spacing frames are arranged on the outer side of the U-shaped bolt, a connecting rod is arranged on one side of each spacing frame, a screw is arranged above the spacing frames, a rocking handle is arranged on one side of the screw, a fixing frame is arranged on the outer side of the screw, a limiting shaft is arranged on one side of the fixing frame, scales are arranged on the surface of the limiting shaft, and a sliding block is arranged on the outer side of the screw. The sliding block is located at the upper end of the spacing frame. The limiting shaft penetrates through the sliding block. According to the utility model, the universality is high aiming at different pile types, and the parallelism and spacing of the embedded parts can be controlled, so that in the working process, an operator does not need to continuously measure and adjust the angle and spacing of the embedded bolts by using a measuring tape, the construction quality of the embedded bolts is ensured, the construction efficiency is greatly improved, and the consumption of human resources is reduced.
Owner:NORTHWEST ENGINEERING CORPORATION LIMITED +1

Anti-seismic environment-friendly packaging box

The anti-seismic environment-friendly packaging box comprises a packaging box body, an outer protection anti-seismic frame is nested outside the packaging box body, and a plurality of folding anti-seismic pads are installed on the inner wall of the outer protection anti-seismic frame; a plurality of limiting frames are arranged in the outer protection anti-seismic frame, a plurality of sets of side fixing beams are installed between the limiting frames, nesting bases are installed below the side fixing beams, folding plates are installed at one ends of the side fixing beams, detachable folding plates are installed at the other ends of the side fixing beams, locking pieces are installed on the side fixing beams, and rubber mats are fixedly embedded in the limiting frames. One end of the side fixing beam is provided with an upper beam clamping groove. The packaging box is embedded into the limiting frame, the four faces are matched with the folding anti-vibration pads, vibration in the transportation process is counteracted by the folding plates and the detachable folding plates on the two sides in advance, meanwhile, the packaging box is protected in cooperation with the folding anti-vibration pads arranged on the four faces, and then vehicle-mounted vibration of the packaging box in the transportation process is eliminated; the shock resistance of the packaging box is indirectly improved, and the stability of the packaging box in the transportation process is ensured.
Owner:LINGHANG (TIANJIN) PACKAGING CO LTD

Space frame climbing tools

This invention provides a climbing tool for a space frame, comprising: a climbing pole, which includes a hook portion and a pull rod portion; a self-locking semi-ring, the middle of which is rotatably connected to the hook portion via a pivot point. When the climbing tool is hung on a space frame member and subjected to force, the self-locking semi-ring and the hook portion together form an open ring to accommodate the space frame member. The inner surface of the open ring is a continuous arc-shaped surface, and the angle at which the open ring encloses the space frame member is greater than 270°; and a handle connected to the pull rod portion. This invention effectively prevents slippage of the hook portion during climbing, even if the hook portion wobbles, due to the self-locking semi-ring, ensuring the safety of the worker.
Owner:CHINA COAL TIANJIN DESIGN ENG CO LTD +1

Fuselage for an aircraft or spacecraft, and aircraft or spacecraft

A fuselage for an aircraft or spacecraft includes a first fuselage section having a support structure with a load bearing outer skin, and a second fuselage section having a non-load bearing outer skin and a space frame structure for supporting the non-load bearing outer skin, wherein the non-load bearing outer skin includes at least one skin area, which is configured to be openable for venting a compartment, which is at least sectionwise enclosed by the at least one skin area. An aircraft or spacecraft is disclosed including the a fuselage.
Owner:AIRBUS OPERATIONS GMBH

A device for positioning the angle of a ball node in a net frame

This utility model discloses a ball node angle positioning device for a space frame, including a placement frame, a fixing frame, and a connector. The ball node of the space frame is placed on the placement frame, and the fixing frame is snapped into place with the placement frame. The ball node is limited and snapped into the fixing frame by the connector, thus realizing the placement of the ball node. The connector includes a handle and a connecting rod, which are detachably connected. This utility model has a compact structure, is easy to use, and has high assembly efficiency, making it convenient for users. The ball node of the space frame is pre-rotated to the designed angle, and then leveled during hoisting and flipping of the space frame, eliminating the need for further adjustment of the hoisting angle, greatly improving assembly efficiency and reducing workload. The angle adjustment of the ball node is easy, requiring minimal additional equipment, further improving assembly efficiency.
Owner:ZHEJIANG ZHONGNAN CONSTR GRP STEEL STRUCTURE CO LTD

Quick tapping tool with gradual change section chip removal combined structure

The utility model discloses a quick tapping tool with a gradual change section chip removal combined structure, and relates to the technical field of tapping tools. The rapid tapping tool with the gradual change amount section chip removal combined structure comprises a limiting frame, a tapping mechanism is arranged above the limiting frame, a limiting assembly comprises a movable frame movably installed below the limiting frame, a connecting rod is movably installed below the movable frame, a limiting rod is movably installed at the bottom end of the connecting rod, and a tapping mechanism is arranged above the limiting frame. A transmission ring is movably installed below the limiting rod, a pressure bearing separates rotation of the screw tap from static monitoring of a pressure sensor, the screw tap can rotate freely, axial pressure can be effectively transmitted to the sensor, the situation that rotation interferes with pressure monitoring is avoided, meanwhile, the linear bearing limits the screw tap to move only in the axial direction, pressure abnormity caused by deviation is avoided, and the service life of the screw tap is prolonged. The grip is matched with the ratchet and the ratchet wheel, so that rotation action and pressure application are separated, the influence of manual force application fluctuation is structurally eradicated, and pressure stability and controllability are achieved through cooperation of multiple components.
Owner:HANGZHOU JUGONG TOOLS CO LTD

Portable railway maintenance crossing device

The utility model discloses a portable railway work uses cross line device relates to railway work technical field, including fixed bottom plate, the top of fixed bottom plate is provided with cross line mechanism, the cross line mechanism includes spacing frame, the bottom surface of spacing frame is connected with fixed bottom plate slidingly, the inner wall rotationally connected with carousel of spacing frame, the inner wall slidingly connected with driven slide bar of carousel, one end of driven slide bar is fixedly connected with driven sleeve pipe, and the cooperation of parts in cross line mechanism is set up, realizes the cross line operation of steel rail automatically, guarantees the safety of steel rail lifting in the cross line process simultaneously, compared with traditional device, the applicant makes the operator not repeatedly bend the waist to complete the whole process operation, reduces the lumbar professional injury risk caused by the bending labor, and replaces the many people cooperative operation mode through the mechanical automation in heavy load, thereby making the device more have practical value.
Owner:闫凯龙

Safety ladder for sand box

The utility model provides a sand box safety ladder which comprises a main body assembly, a first fixing assembly, a second fixing assembly and a supporting assembly, the main body assembly comprises a standing frame, a descending ladder and a fence, the standing frame is connected with the descending ladder, and the fence is arranged on the standing frame and the descending ladder; the first fixing assembly comprises a fixing plate and a positioning pin, the fixing plate is connected with the standing frame, a through hole is formed in the fixing plate, and the positioning pin is inserted into the through hole; the second fixing assembly comprises a limiting frame, a limiting frame and a fixing bolt, the limiting frame is connected with the standing frame, the limiting frame is slidably connected with the limiting frame, and the fixing bolt is arranged on the limiting frame. According to the sand box safety ladder disclosed by the embodiment of the utility model, the main body assembly and the sand box are stably connected by utilizing the first fixing assembly, the second fixing assembly and the supporting assembly, so that personnel can conveniently enter and exit from the sand box, and the purpose of safety production is realized while the product quality is ensured.
Owner:BOTU NEW ENERGY (XUZHOU) CO LTD

A novel space frame node device

This application discloses a novel space frame node device, belonging to the technical field of space frame components. It provides a space frame node device that can stably connect to purlins and the outer frame. The device includes hemispheres that can be used individually or in pairs. Each hemisphere has a large end face and a small end face, with at least two inclined surfaces between them. The hemispheres have internal threaded holes within the inclined surfaces and recessed grooves between the inclined surfaces. A through-hole penetrating the large end face is formed within the recessed groove. A stud is also fixedly connected to the large end face, with the stud of one hemisphere suitable for passing through the through-hole of the other hemisphere. This application, by designing hemispheres that can be used independently or in pairs, enables the node device to not only stably connect to purlins inside the space frame but also to achieve full contact and stable connection with the planar frame at the edge of the space frame using the large end face of the hemisphere and the unfitted stud. By opening an insertion channel in the middle of the hemisphere, it can cooperate with a positioning rod to achieve positioning during construction.
Owner:ZHONGKE SUNBROAD CONSTR GRP CO LTD

Three-rail sliding door structure with gauze

The utility model discloses a three-rail sliding door structure with gauze, which comprises a door body, an upper rail piece, a lower rail piece and an auxiliary piece, the top and the bottom of the door body are provided with pushing and hanging pieces, the upper rail piece is positioned above the door body, the lower rail piece is positioned below the door body, the auxiliary piece is positioned on the side part of the door body, the auxiliary piece comprises the gauze and a gauze leaf, the gauze is positioned on the side part of the door body, and the gauze leaf is positioned on the side part of the door body. The gauze fan is located on the side portion of the gauze element and used for enabling the gauze element to be connected with the pushing and hanging piece. According to the three-rail sliding door, the gauze element, the gauze sash, the auxiliary column, the limiting frame, the limiting frame and the fixing block are matched with one another, the gauze element enables air to circulate, the gauze sash supports the gauze element, the limiting frame is used for connecting and limiting the gauze element, the limiting frame is used for fixing the limiting frame and the auxiliary column in an inserted mode, and therefore when the door body of the three-rail sliding door is closed, the three-rail sliding door is not prone to falling off. The gauze element is used for ventilation operation so as to adapt to various ventilation use occasions, meanwhile, the gauze element can be conveniently inserted and fixed, and the gauze element can be conveniently taken down and cleaned.
Owner:HUBEI JIAKAI CURTAIN WALL TECH CO LTD

Cutting device for light steel keel

The invention discloses a cutting device for a light steel keel, and relates to the technical field of building decoration construction equipment, the cutting device comprises a mounting base, a fixing frame, a cutting mechanism and a driving mechanism; the fixing frame is arranged on the mounting base, and the cutting mechanism is arranged in a space frame formed by the fixing frame and the mounting base; the driving mechanism drives the lifting module and the movable die of the cutting die to move downwards, so that the lifting module and the movable die are matched with the limiting block and the cutting groove which are fixed to the second mounting plate, one-time punching of the light steel keel is achieved, and the free cutting mode of a handheld tool is thoroughly replaced. Positioning, fixing and cutting of a workpiece are all accurately completed by the device, so that traditional cutting operation depending on hand-eye coordination and experience of an operator is standardized into simple and reliable mechanical operation, the operation efficiency and the consistency of notch quality are greatly improved, and potential safety hazards caused by operation of a handheld electric tool are fundamentally eliminated.
Owner:2ND CONSTR CO LTD OF CHINA CONSTR 5TH ENG BUREAU

Highway engineering potting detection test device

The utility model discloses a highway engineering potting detection test device, which relates to the technical field of highway engineering, and comprises a fixed seat, a detection device arranged above the fixed seat, a disassembly and assembly structure arranged on the fixed seat and used for switching the storage position of a potting adhesive, and a control device arranged on the fixed seat and used for controlling the detection device and the disassembly and assembly structure, the detection device comprises two sets of fixing plates, the fixing plates are fixed to the two sides of the top of a fixing base, a connecting frame is fixed between the two sets of fixing plates, a sliding block is slidably connected to the inner side of the connecting frame, a hydraulic cylinder is fixed to the top of the sliding block, rolling wheels are fixed to the bottom end of the hydraulic cylinder, and a driving motor is fixed to one side of each fixing plate. Through cooperation between the limiting frame and the first fixing shaft, when the limiting piece is separated from the limiting frame, the limiting frame is driven to be separated from the baffle, so that the storage shell can be detached from the fixing base, the baffle is controlled to be separated from the storage shell, and therefore when different pouring sealants are detected, only one set of storage shell needs to be replaced, and the detection efficiency is improved.
Owner:HEILONGJIANG LONGGE INSPECTION & TESTING CO LTD

Hazardous chemical substance storage tank composite material winding core mold

The invention discloses a composite material winding core mold for a hazardous chemical substance storage tank, and relates to the field of manufacturing of large hazardous chemical substance composite material storage tanks, the whole structure adopts an annular-longitudinal reinforcing system to form a space frame of a cylinder inner wall supporting assembly, diagonal draw bars and a center shaft, and the whole core mold adopts a through shaft to penetrate through the whole core mold. The cylinder inner wall supporting assemblies are internally designed to support a PE layer of a tank body and are in a clamping shape with the wave-proof plates, the wave-proof plate jacking blocks provide radial support for the wave-proof plates, the adjacent cylinder inner wall supporting assemblies are connected through the diagonal draw bars, the stability of the structure is guaranteed, core mold structural parts are mostly built through aluminum profiles, the overall weight of the core mold is reduced, and the cost is reduced. The stability of the core mold in the product machining process is guaranteed, the modular design can effectively adapt to various similar products, and the core mold has the advantages of being convenient and fast to disassemble, high in positioning precision and long in service life and can meet the technical requirements of winding and curing of large composite storage tanks.
Owner:西安科为智通复合材料技术有限公司

Butterfly-shaped connection node structure for grid structure of composite material

The invention discloses a butterfly-shaped connecting node structure for a grid structure of a composite material, which comprises a connecting disc, a plurality of first lug plates, a plurality of second lug plates and a plurality of connecting plates, and is characterized in that the outer edge of the connecting disc extends along the disc surface of the connecting disc to form the plurality of first lug plates; the two fin plates are oppositely arranged, the lower sides of the two fin plates are connected to the plate face of the connecting plate, the fin plates are obliquely arranged, the distance between the two fin plates is gradually increased in the direction from the lower sides of the fin plates to the upper sides of the fin plates, and the two opposite ends of the fin plates extend in the plate face direction of the fin plates to form second lug plates; a third lug plate is formed at one end of the inserting plate, bearing and inserting grooves are formed in the end face of one end of the horizontal rod piece and the end face of one end of the web member of the grid structure respectively, the horizontal rod piece and the web member are made of FRP materials, the other end of the inserting plate is detachably inserted into the bearing and inserting grooves, and the third lug plate is detachably connected to the first lug plate or the second lug plate. According to the invention, the problem that a grid structure adopts a glass fiber reinforced polyurethane composite material rod piece and lacks a connection node with reliable connection is solved.
Owner:CHINA CONSTR EIGHT ENG DIV CORP LTD

Construction method for installing tower crane by using cable crane

The invention discloses a construction method for installing a tower crane by using a cable crane, which comprises the following steps: S1, on a curved surface structure of a main limb of an arch bridge, a steel platform foundation adapted to the radian of an arch body is constructed through a rigid connection node where a tubular support member is attached to the curved surface, and the steel platform foundation transmits the load of the tower crane to the main limb of the arch bridge through a space frame structure; s2, a large-tonnage hoisting device with the span covering the arch span is adopted, tower crane components are sequentially hoisted from the two sides of the arch bridge to the midspan direction, and the hoisting path crosses the complex terrain of the canyon or the river surface; s3, in the multi-tower-crane cross operation area, the height difference and the horizontal operation area interval between the multiple tower cranes are controlled, and a three-dimensional space anti-collision system is constructed in combination with environmental parameter monitoring; and S4, the tower body is jacked in stages, and installation precision control is achieved through real-time perpendicularity monitoring. The advantage that the span of the cable crane is large is utilized, and on-site assembling links are reduced.
Owner:ROAD & BRIDGE SOUTH CHINA ENG CO LTD +1

Aluminum plate curtain wall structure with grid arch and suspended truss

This invention discloses an aluminum panel curtain wall structure with a space frame arch and a suspended truss, comprising steel tube concrete columns, an arched space frame, a beam-type space frame, a suspended truss, and an aluminum panel curtain wall. Spherical bases are provided at the support points of the arched and beam-type space frames, and these spherical bases are mounted on the steel tube concrete columns. The beam-type and arched space frames are welded together, and a suspended truss is welded below the beam-type and arched space frames. The outer surface of the suspended truss is covered with an aluminum panel curtain wall. This invention's aluminum panel curtain wall structure with a space frame arch and suspended truss is ingeniously designed, easy to construct, and aesthetically pleasing, effectively meeting the needs of high-speed railway stations for large spaces, wide spans, evacuation routes, and architectural aesthetics.
Owner:CHINA TIESIJU CIVIL ENGINEERING GROUP CO LTD +2

Chair back frame (7221 space frame)

1. Name of the product in this design: Chair back frame (7221 space frame). 2. Intended use of this design: furniture. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D rendering 2.
Owner:张杏芳

Automatic stacking and arranging device for easily-wrapped sanitary towel finished products

The utility model discloses an easily packed sanitary napkin finished product automatic stacking arrangement device, including stacking equipment, spacing subassembly and pushing subassembly, spacing subassembly includes multilayer moving rack, multilayer moving rack is provided in the front side of stacking equipment, the top of multilayer moving rack is fixedly connected with spacing frame, and the spacing frame is provided with the pushing subassembly. A baffle plate is movably connected to the front side of the limiting frame, a right-angle plate is arranged on the front side of the baffle plate and located on the front side of the multi-layer moving frame, an elastic plate is fixedly connected to the bottom of the right-angle plate, a short plate is fixedly connected to the bottom of the elastic plate, and the rear side of the short plate is fixedly connected to the front side of the multi-layer moving frame. And the bottom of the right-angle plate is fixedly connected with a traction rope. The finished products are limited through the limiting assembly, when the finished products are moved at a high speed, the finished products are prevented from sliding on the top of the moving assembly under the influence of inertia, the stacked finished products are prevented from inclining, and the stacking stability is improved.
Owner:QUANZHOU ZHIGAO MASCH MFG CO LTD

Novel full-automatic vertical film laminating machine

The utility model relates to the technical field of film laminating machines, in particular to a novel full-automatic vertical film laminating machine which comprises an operation table and a film plating device, the film plating device is installed at the left end of the interior of the operation table, an auxiliary feeding frame is installed on the bottom side of the right end of the operation table, a discharging port is formed in the left end of the film plating device, and a moving mechanism is installed at the top end of the auxiliary feeding frame. The moving mechanism comprises a moving assembly and a driving assembly, a moving frame is fixedly arranged at the bottom end of the moving assembly, the driving assembly is installed at the rear end of the moving frame, a limiting frame is installed on the bottom side of the front end of the moving frame, and a coating material is installed at the center of the limiting frame and the center of the driving assembly; and air outlets in the front ends of the flow dividing boxes are connected with the air pipes to be conveyed into the hollow rotating rollers, through the design, the materials can be extruded while drying is accelerated, material bubbles are reduced, the quality of the materials is improved, the coating materials can be rapidly installed through the limiting frames, time is shortened, and the workload is reduced.
Owner:SHANGHAI TONGDA COLOR PRINTING FACTORY