40 results about "Universal design" patented technology

The invention relates to the technical field of design examination architecture, in particular to a general design examination architecture method for comprehensively scheduling small models based on AI large models. Comprising the following steps: constructing an intelligent scheduling system which takes a general AI large model as a core and comprises a visual analysis model, a text understanding and segmentation conversion model and a rule generation model, enabling a user to submit a design review task through a dialogue interface or a file uploading mode, receiving a task request through a large language model, and carrying out preliminary analysis; through multi-module cooperation and intelligent scheduling, the automation degree of design drawing review is greatly improved, the overall review efficiency is improved, visual analysis, text processing and rule generation technologies are fused, compared with a rule-based drawing review system, wider review content can be covered, and the design drawing review efficiency is improved. The versatility of the architecture enables the architecture to rapidly adapt to new rules and standards, and enables the iteration updating of the drawing checking system to be faster.

The utility model relates to the field of embedded sleeve installation, in particular to an embedded sleeve positioning device. The positioning device aims at solving the technical problems that in the prior art, the field installation procedure is tedious, and the positioning efficiency of the embedded sleeve is low. A pre-embedded sleeve positioning device comprises a mounting frame, an adjusting assembly, a bottom plate and a separation groove. The positioning device adopts a universal design, can be flexibly folded and unfolded and is convenient to transport, meanwhile, during site construction, a worker can fix the mounting frame on a wall surface or the ground, the positioning device is suitable for various construction scenes, mounting is convenient and fast, the mounting efficiency of the positioning support is greatly improved, and the inclination of the bottom plate is adjusted through the adjusting assembly; according to the embedded sleeve positioning device, multiple requirements of embedded sleeve positioning are met, one or more embedded sleeves placed on the inner side of the positioning assembly are positioned at intervals, in this way, positioning is stable, the embedded sleeves are not prone to displacement in the separation grooves, and ventilation and heat dissipation are facilitated when other pipes or cables are installed in the sleeves later.

The invention discloses an MEMS sensor intelligent design method and system oriented to a universal design scene. The method comprises the steps that a large number of structural parameter-performance parameter data pairs of MEMS sensors are obtained based on finite element simulation; constructing and training a verification network to establish a mapping relation from structure parameters to performance parameters; the fuzzy range, the accurate numerical value and the unconstrained three different design demands are converted into unified interval representation, and a reverse generation strategy is used to construct a data set containing the design demands; constructing and training a search network to realize a mapping relation from a design demand to a feasible structure; and a precision optimizer is constructed to improve the quality of a feasible solution output by the search network. Compared with a traditional intelligent design model, the model expansibility is high, multiple design requirement types can be supported without retraining, the capability of automatically iterating and optimizing precision is achieved, and therefore high-precision and rapid MEMS sensor design is achieved.

We provide an invention creation system and program that can systematically analyze technical and market information, accurately identify unexplored areas, and efficiently create and evaluate novel solutions for those areas. The invention creation system creates new inventions by analyzing a database containing technical literature, patent information, and market information. This invention creation system is characterized by comprising: a technology space modeling unit that analyzes the database, classifies technical elements into functional features and structural features, and maps the relationships between them onto a multidimensional technology space; a white space identification unit that identifies, as technological blank areas, areas in the multidimensional technology space where the combination density of existing technologies is low or areas where no structural features corresponding to specific functional features exist; a general-purpose design knowledge base that systematizes the mapping relationship between the functional space and the structural space and technological principles; and an automatic invention creation unit that sets required functions in the technological blank areas, searches for structural combinations that realize the required functions based on the general-purpose design knowledge base, and generates design solutions.

The invention discloses a universal design method suitable for centrifugal compressor model stages with different flow coefficients, and belongs to the technical field of centrifugal compressor design. The method mainly relates to establishment of three-dimensional models of an impeller, a vaneless diffuser, a curve and a backflow device and comprises a rotor part and a stator part, and design parameters of the centrifugal compressor model stage are finally obtained according to a series of calculation results and given parameters. The method is a universal method suitable for centrifugal compressor model stages with different flow coefficients, and the design efficiency and the aerodynamic performance of the compressor are improved. According to the method, the structure compactness of the model stage is ensured, the performance is more potential, and the thermodynamic cycle efficiency is high.

1. The name of this design product: industrial remote control. 2. Purpose of this design product: used for remote control of industrial equipment. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the key points of the design: a reference diagram of the design 4 in use. 5. The right view of component 1 of design 1 is symmetrical with the left view of component 1 of design 1, and the right view of component 1 of design 1 is omitted; the main, rear, left, top and bottom views of component 1 of design 2‑4 are the same as the main, rear, left, top and bottom views of component 1 of design 1, and the main, rear, left, top and bottom views of component 1 of design 2‑4 are omitted; the right view of component 1 of design 2‑4 is symmetrical with the left view of component 1 of design 1, and the right view of component 1 of design 2‑4 is omitted. 6. Designate Design 1 as the base design. 7. Other situations that require explanation: Other explanations: Design 1 component 1 is a universal design, which is also applicable to Design 1 component 2, Design 2 component 2, Design 3 component 2, and Design 4 component 2, and they are used in conjunction with each other. Please refer to the Design 4 usage status reference diagram for details.

The utility model provides a hanging basket device for an inclined parapet wall. The hanging basket device comprises a hanging basket support assembly and an installation auxiliary device. The hanging basket support assembly comprises a hanging basket rear support, a hanging basket front support and a hanging basket cross arm assembly. The mounting auxiliary device horizontally supports the front bracket of the hanging basket to be positioned on the slope surface of the inclined parapet wall; the installation auxiliary device comprises a first fixing plate, a second fixing plate and a third fixing plate. The second fixing plate is provided with a rubber pad in frictional contact with the bottom end of the hanging basket front support, and an anti-skid baffle is arranged at the position, located at the front end of the hanging basket front support, of the second fixing plate. In the application, the hanging basket front bracket is horizontally supported by the mounting auxiliary device, so that the hanging basket front bracket is stably positioned on the slope surface of the inclined parapet wall, the extension distance of the hanging basket front arm does not need to be changed and adjusted, and the universal design is kept; no fixed connection relation exists between the hanging basket front support and the installation auxiliary device, installation and disassembly are convenient and fast, and high flexible turnover performance is achieved.

According to the extensible universal hoisting tool, modular design is adopted, a main beam of a main frame serves as a core, size extension is achieved through flexible connection of a lengthened beam, free assembly can be conducted according to the size of a hoisted part, and the structural stability is ensured through cooperation with an adjustable supporting rod; therefore, the hoisting tool meets the hoisting requirements of various parts with different shapes and sizes in the antenna framework, has high universality, can hoist all the parts of the antenna framework through one set of hoisting tool, greatly reduces the manufacturing cost and the tool management complexity, reduces confusion of constructors caused by various types of tools, and improves the construction efficiency. Compared with the prior art, the method has the advantages that the operation error risk is reduced, the construction quality and safety level are improved, meanwhile, the field tool replacement frequency is reduced, the overall erection efficiency is improved, generally, through the extensible and universal design, the problems of tool diversification, low efficiency and high cost in the antenna framework hoisting process are effectively solved, and the practicability is high. Economical, efficient and safe on-site erection is realized.

This invention relates to the field of door sills, specifically a door sill assembly, a body assembly incorporating the door sill assembly, and a platform-based and universal design method for the door sill assembly. The assembly includes a door sill reinforcement plate, with a rear door sill connecting plate at its end. The door sill reinforcement plate and the rear door sill connecting plate are separate designs. In use, the rear door sill connecting plate is connected to the end of the door sill reinforcement plate. This invention discloses a door sill assembly. Because the door sill reinforcement plate and the rear door sill connecting plate are separate designs, it facilitates the reuse of the door sill assembly in different vehicle models. Furthermore, the reuse of the door sill reinforcement plate assembly improves production efficiency, reduces costs, and saves manpower. The door sill reinforcement plate itself can be modified and reused according to changes in wheelbase length. By reusing the door sill assembly, manpower is saved, and development and per-vehicle costs are reduced.

The utility model discloses a fixing bracket for a vibration test of a hoisting double-sided screen, which comprises a bracket structure for supporting and fixing, and the bracket structure comprises an upper part and a lower part; the upper portion and the lower portion are of an integrated structure, and the fixing support is installed on a vibration table through the lower portion. The upper part is provided with a fixing part, and a to-be-tested double-sided screen is installed through the fixing part. The fixing part can adapt to installation of various double-sided screen products, hoisting is stable, the defect that in the prior art, only one fixing support can be used by a manufacturer corresponding to one double-sided screen for production is overcome, and the production cost generated by customized production is reduced through the universal design mode.

The utility model discloses an interior top structure of a rail transit vehicle, which comprises a vehicle body, the top of the vehicle body is provided with a hanging arm, the bottom of the hanging arm is connected with a passenger room wire duct and a cross beam, the bottom of the cross beam is provided with an air outlet framework, and the bottom of the air outlet framework is provided with a lamp. The universal design of carriages of different grades is compatible, the design and development cost is reduced, and the assembly efficiency is improved.

The application provides a design method and system for a multi-component controllable thermal expansion connection and an integrated support lattice structure, and belongs to the field of controllable thermal expansion structures. In order to solve the problems that the mapping relationship between macroscopic thermal expansion performance and lattice structure materials is not clear, there is a lack of universal design method, and the structure is relatively complex and difficult to process, the tooling support structure is decomposed into a deformation structure and a tooling structure, the target thermal expansion coefficient is substituted into a triangular lattice structure equivalent thermal expansion coefficient calculation model, the bottom length, that is, the structure material, is constrained to obtain the initial parameters of the lattice structure; then the structure is fine-tuned through finite element simulation, the influence of the actual wall thickness is eliminated and adaptive processing is performed, and finally the lattice structure design meeting the use requirements is completed. The structure thermal expansion precision obtained by the method is high, the lightweight rate is high, the cost is low, and the tooling connection demand with specific thermal expansion demand between multiple mechanisms can be effectively adapted.

The invention relates to a design method for an integrated system of a manned spacecraft assembly. The design method comprises the steps that a system and cabin section two-stage assembly is set up; the system generally unifies construction specifications, development processes and production and insurance requirements, and puts forward universal design requirements of each cabin section; according to the system, the top layer design and the system function design of a manned spacecraft assembly are integrally completed, task functions and an index system are decomposed into cabin sections, and interfaces between the cabin sections are defined; overall decomposition of the cabin sections is carried out, functional and technical requirements on subsystems are issued, and interfaces between the subsystems are defined; the subsystem completes subsystem-level design, decomposes and issues function and technical requirements for single machines, and defines interfaces between the single machines; a single machine completes design and development of products according to unified construction specifications and technical requirements. The method can be popularized and applied to design of complex system spacecraft assemblies in various fields, and it is ensured that functions of all cabin sections are fused and coordinated, the product generalization rate is high, the technical state convergence speed is high, and the product maturity is high.

The present invention provides a universal design method, device and server for industrial applications of thermal insulation performance simulation, which relates to the technical field of universal development of simulation applications, including: determining the external flow field of the model to be simulated and the effective fluid domain in the external flow field based on the interactive information between the user end and the external flow field component and the Boolean operation component, and performing grid division processing and model segmentation processing on the effective fluid domain to determine the target effective fluid domain; by combining the nonlinear segmentation component and the thermal boundary configuration component, configuring corresponding thermal boundary conditions for each area of ​​the target effective fluid domain to determine the target simulation model; using a preset solver to perform simulation calculation processing on the target simulation model, and performing temperature field rendering processing on the output result to determine the target thermal insulation performance simulation result. The present invention can significantly improve the simulation efficiency of thermal insulation performance simulation and the accuracy of simulation results.

The utility model relates to the technical field of machining, in particular to a self-adaptive three-jaw chuck floating clamping jaw which comprises connecting discs, self-adaptive rotating blocks, steel jaws and a chuck, the three connecting discs of sector plate-shaped structures are fixedly connected to the three jaws of the chuck respectively, a plurality of mounting positions of the self-adaptive rotating blocks are arranged on the connecting discs from inside to outside, and the steel jaws are arranged on the steel jaws of the chuck. The self-adaptive rotating block is of an arc-shaped block structure, and steel claws are installed at the two ends of the inner arc face and the two ends of the outer arc face of the self-adaptive rotating block respectively. According to the floating clamping jaw of the self-adaptive three-jaw chuck, the universal design concept is adopted, the non-roundness characteristic of a disc part blank and an annular part blank is combined, the clamping jaw capable of changing and clamping along with the outline of the part is designed, the tool cost is reduced, manual operation is reduced, the production efficiency is improved, and the equipment utilization rate is increased.

The invention belongs to the field of petroleum and natural gas resource development, particularly relates to a multifunctional integrated multilateral well service tool, and aims to solve the problems of complex operation and low timeliness of the whole process. The tubular column comprises an inner tubular column body and an outer tubular column body which are connected together. The inner tubular column comprises an upper joint, a runner sleeve, a drawing sleeve, an upper connecting sleeve, a lower connecting sleeve, a rotating shaft sleeve, a tubular column reducing sleeve, an inner central tube, a pressure isolation sleeve, a sealing insertion tube, an extension tube and a central tube ball seat; the outer tubular column is used for being connected with the outer tubular column function module. Modular and universal design is adopted, connectors can be reserved for connecting well completion tools such as hangers and packers of different types and different purposes, feeding, setting and hydraulic back-off double-releasing functions are provided for the tools, the universality of the tools is improved, the modular and universal design is achieved, meanwhile, the structural optimization design is adopted, and the construction cost is reduced. The service tool assembly is integrated with a press-down rotating jam releasing function and a circulating jam releasing function, so that the tool tripping-in reliability is enhanced.

The application discloses a segmented rigidity coordination design method for an underwater suspended tunnel and relates to the technical field of civil engineering. The method disclosed by the application fills the technical blank of the rigidity design of the underwater suspended tunnel structure, promotes the development of the underwater suspended tunnel, provides a more controllable and more universal design method, and solves the problem that the joint structure of the suspended tunnel is not researched and designed by anyone at the present stage. The joint rigidity design is a brand-new design concept. The anchor cable rigidity design method in the application adopts an innovative segmented method, decouples the coupling effect between multiple pipe sections, and achieves good effect after design, and generates a better structure response and a moderated displacement curve compared with the existing pre-tightening force optimization design. In addition, the method can also be used for cable adjustment of a cable-stayed bridge, also adopts a segmented method, and finally, according to the stress and displacement requirements of each section, the vertical rigidity of each cable is designed to obtain the total rigidity.

A kind of general design and manufacturing method and device of bottom guard plate belong to new energy vehicle chassis protection field, including obtaining the vehicle bottom information of multiple preset vehicle models;According to the vehicle bottom information of each preset vehicle model, the second structure information of corresponding bottom guard plate is generated respectively;First structure information and second structure information include boundary information of contour boundary and point information of fastening point;All second structure information is fused to obtain third structure information, and third structure information includes all second structure information;According to third structure information, generate basic structure;According to the second structure information of each preset vehicle model, the basic structure is punched respectively to obtain corresponding bottom guard plate.The application can generate the basic structure suitable for processing all preset vehicle models in advance, improve the universality of the basic structure obtained by preliminary processing, and improve the processing efficiency when producing the bottom guard plate of each preset vehicle model.

The invention discloses a lathe tool with the pitch circle diameter adjustable and an adjusting method. The lathe tool comprises a tool body, a pitch circle adjusting rail groove is formed in the tool body, and a replaceable movable positioning piece is arranged in the pitch circle adjusting rail groove; the tool body comprises a tool base and an adjusting positioning cover rotating relative to the tool base, and the pitch circle adjusting rail groove comprises a linear guide rail groove formed in the tool base and an arc-shaped adjusting groove formed in the adjusting positioning cover. According to the lathe tool, the pitch circle diameter of the position, where the movable positioning piece is located, of the tool body can be adjusted, the clamping requirements of different workpieces can be met, and the universal design of the tool body is achieved. According to the lathe tool, only different movable positioning pieces need to be replaced according to the sizes of threaded holes or counter bores in different workpieces, material loss is reduced, and resources are saved. And the tool application range and the tool utilization rate are improved. And the tool is convenient to disassemble and assemble, simple to manufacture and low in cost.

The invention relates to the technical field of software, in particular to a Bluetooth voice remote controller generalization method and system, and the method comprises the steps: constructing a heterogeneous remote controller feature model; designing a private feature set pre-compiling framework of the remote controller combination based on the heterogeneous remote controller feature model; decoupling of the business module and the remote controller feature set is realized based on a private feature set pre-compiling framework; connection of different hosts is realized based on a carousel method of a backoff strategy; and discriminating models of the remote controllers and loading feature sets and resources of the target remote controllers. The invention provides a universal design method which does not depend on additional hardware, and the compatibility of different remote controllers, the flexibility of functions and the efficient utilization of system resources are ensured.

The methods and systems described herein may provide an architecture design for high performance, language-agnostic software automation pipelines that provide software automation tasks, such as Continuous Integration / Continuous Delivery (CI / CD) tasks, for execution in a pipeline session that supports various technology stacks. The pipeline session may be configured in a manner that is customized to meet the requirements of the client project, such as the technology stack used by the client project. For example, the pipeline session may be configured through the use of a universal design that reduces duplication and proliferation of project-specific pipelines and configurations.

The utility model discloses a trundle and panel fixing structure using a single screw, which comprises a roller carrier, a screw rod and a panel, the first bearing disc and the second bearing disc are arranged at the bottom and the top of the mounting ring, and the balls are located in ball cavities formed by splicing the mounting ring, the first bearing disc and the second bearing disc. The positioning suite is embedded in the roller carrier and the ball assembly, a counterbore is formed in the positioning suite, an annular clamping groove is formed in the outer side of the positioning suite, and the inner side of the ball assembly is clamped in the annular clamping groove; and the screw is arranged in the counterbore of the positioning sleeve piece and the mounting hole of the panel in a penetrating manner and is screwed and positioned, and a groove is formed in the top surface of the panel. The mounting structure can solve the problems that a common mounting structure for the trundle and the top cart panel is complex in assembling operation, long in consumed time, low in efficiency and inconvenient to assemble in mass production, and the universal design of the mounting structure enables the trundle and the panel to be connected only through a rotating shaft, so that the structural stability and strength are not high.

The invention discloses a subway station entrance and exit digital collaborative design method and system.The method constructs a subway station entrance and exit collaborative design system, and the subway station entrance and exit collaborative design system comprises building major-structure major collaborative design of a scheme design stage, a preliminary design stage and a construction drawing design stage; according to the general design platform Revit, establishing a building specialty-structure specialty data model collaborative interaction strategy under the subway station entrance and exit collaborative design system; based on a data model collaborative interaction strategy between the building specialty and the structure specialty, a subway station entrance and exit design tool is developed; functional components of the subway station entrance and exit design tool are defined, wherein the functional components of the subway station entrance and exit design tool comprise a volume creating component, a model creating component, a model changing and updating component, a structure slotting component and a drawing designing component. According to the method, the high requirements of modern urban rail transit engineering on design precision, efficiency and comprehensive performance are met.

The utility model provides a light-emitting component with a light channeling prevention function, which comprises a light-emitting substrate, a light-emitting layer and a light-emitting layer, inner cavities with the same number as the luminous points are formed in the silica gel button, the positions of the inner cavities correspond to the positions of the luminous points, and light isolation is achieved between the adjacent inner cavities through partition plates; the clamping piece is light-proof and is provided with at least one clamping groove, the clamping groove is used for being connected to the partition plate in a clamped mode and blocking light of the inner cavities on the two corresponding sides through structures on the two sides of the clamping groove, the bottom face of the clamping groove abuts against the light-emitting substrate, and at least one part of the top face of the clamping groove abuts against the inner wall of the silica gel button. The clamping groove in the clamping piece is clamped at the position of the partition plate between the two inner cavities, when a light emitting point emits light, the light emitting point can only emit light in the corresponding inner cavity, the structures on the two sides of the clamping groove are used for shielding the light in the inner cavities on the two corresponding sides, the light channeling prevention function is achieved, universal design is carried out according to the structural size of the partition plate, and universality is high.

The utility model relates to the technical field of part transfer in the machining process, in particular to a self-adaptive universal lifting appliance which comprises an execution end, a sliding fixing end and a sliding driving end, the sliding driving end comprises a sliding guide rod with a vertical center, a moving block and three groups of bridging sliding frames, and the bridging sliding frames are hinged to the edge of the moving block; the lower part of the sliding guide rod is a thin end; the sliding guide rod slides through a center hole of the sliding fixed end, so that the execution end is driven to move, the universal hoisting function is achieved, and the hoisting tool is always kept in an open state in a static state through the compression spring. The utility model provides a self-adaptive universal lifting appliance, which adopts a universal design concept, so that a clamping interval can be freely changed along with the size change of parts, and three clamping parts are designed to be telescopic so as to achieve certain universal performance, so that the carrying is safe, and the labor cost is reduced.

The invention provides a floating type wind turbine generator steel-concrete platform design method. The method comprises the steps that S1, a universal design assembly is constructed based on the structural configuration of a four-main-column steel-concrete floating type wind turbine platform; s2, obtaining structural parameters of a wind turbine generator to be used to obtain design parameters meeting platform stability; s3, establishing a platform physical model and carrying out sensitivity analysis to obtain a main scale sensitivity analysis result; s4, analyzing the motion response change trend of the platform physical model in each motion direction under different main scales according to the main scale sensitivity analysis result, and obtaining an optimization scheme by taking economical efficiency or stability as an optimization target; s5, establishing a finite element model based on the optimization scheme, and checking the structural strength to obtain a structural strength analysis result; and S6, performing reliability analysis on the finite element model based on the structural strength analysis result to obtain a stability analysis result. The method has the beneficial effect that the safety, the stability and the economical efficiency of the steel-concrete floating type wind power platform can be improved.

The invention relates to the technical field of vehicles, in particular to a frame longitudinal beam with matrix type mounting holes, a modular frame assembly and a dump truck. The groove type longitudinal beam body comprises a longitudinal beam web panel, a longitudinal beam upper wing panel connected to the upper end of the longitudinal beam web panel and a longitudinal beam lower wing panel connected to the lower end of the longitudinal beam web panel, a plurality of standard mounting holes are formed in the longitudinal beam web panel in a matrix mode, and the standard mounting holes are used for being detachably connected with other components of a frame assembly. Uniform interfaces are provided for chassis mounting parts of the frame assembly, the modular design of the modular frame assembly can be realized by adjusting the mounting positions and the number of the chassis mounting parts when the length of the frame assembly is changed, and the universal design requirements of different variable vehicles can be met based on the standard mounting holes distributed in a matrix manner; the modularization level of the whole vehicle is greatly improved, the universality of various chassis accessories on different variable vehicles is improved, and the research and development, manufacturing and after-sales costs are reduced.

The utility model discloses a combined type high-voltage electric device fixing platform in the technical field of electric vehicles, which comprises two supporting structures, a rectangular plate, a concentric-square-shaped frame, a first L-shaped batten and a plurality of first reinforcing plates. A bearing top plate; a middle-layer bearing frame; a bottom bearing frame; combination and assembly and connection with the welding beam are completed through bolt connection, disassembly and reassembly are easy, replacement or repair is convenient, the maintenance cost and time are reduced, the production process is simplified, the production cost is reduced, the production efficiency is improved, and universal design is achieved, so that repeated design is avoided, the development cost is reduced, and the production efficiency is improved. According to the invention, the development efficiency of a new vehicle model is improved, the weight reduction effect is achieved through a plurality of pre-formed mounting hole sites, the lightweight design is realized, and the simplification of a fixed size is ensured, so that the floating of a mounting gap is avoided, the structural strength after assembly is improved, and through reasonable layout of the hole sites, the production cost is reduced. And the installation reliability and the stability of the whole structure are improved.

The utility model relates to the technical field of garden sign production, and discloses a telescopic garden sign which comprises an advertising board, a first sliding rod is fixedly connected to the left side of the advertising board, teeth are arranged on the back face of the first sliding rod, a first support is arranged below the advertising board, and the first sliding rod is slidably connected to the inner wall in a cavity of the first support. A gear assembly is arranged on the outer wall of the left side of the first support and comprises a gear, a handle and supporting plates, the supporting plates are arranged on the two sides of the gear, the handle penetrates through the supporting plate on the front side of the gear to be fixedly connected with the gear, the handle is rotationally connected with the supporting plate on the front side of the gear, and a clamping block is arranged on the outer wall of the front side of the first support and slidably connected with the first support. The clamping block can clamp the handle, the lifting function of the garden sign is achieved, the height can be freely adjusted for people with different heights to browse the garden sign, the requirement of ergonomics is met, and the universal design is effectively achieved.

The application relates to the technical field of spacecraft assembly, in particular to a spacecraft assembly operation platform, which comprises a base frame, a support frame, a lifting mechanism and a flexible envelope mechanism, the support frame is arranged on the base frame and comprises at least one support frame which are sequentially connected in the vertical direction; the lifting mechanism is arranged in each support frame and is used for adjusting the height of each support frame; the flexible envelope mechanism is arranged between the base frame and the adjacent support frame and between the adjacent two layers of support frames, and comprises a plurality of envelope units, each envelope unit can move along a preset direction to adjust the edge shape of an envelope area formed by the flexible envelope mechanism. The application can adjust the height of the whole operation platform and the edge shape of the envelope area, thereby meeting the multiple adjustment process equipment of various spacecraft out-of-vehicle assembly and test experiments, and realizing the universal design suitable for various spacecraft and different working condition test requirements.