64 results about "Shape space" patented technology

The invention discloses a skylight front and rear column foam automatic profiling attachment optimization method based on data modeling, and relates to the technical field of column foam attachment, and the method comprises the steps: obtaining a three-dimensional shape data set of a target skylight front and rear column under multiple view angles, and carrying out the denoising processing and coordinate conversion, and obtaining a skylight front and rear column shape space data set; carrying out three-dimensional reconstruction and grading optimization, and building a skylight front and rear column space model; performing profiling attachment simulation on the skylight front and rear column space model based on foam material information and thickness information according to a skylight foam attachment standard to generate a front and rear column foam attachment model; surface feature recognition and attachment path planning are carried out, and a target foam attachment path is determined; and executing the target foam attachment path and performing foam attachment monitoring through the automatic attachment equipment to obtain an attachment monitoring data stream, and introducing a closed-loop feedback mechanism to perform foam attachment optimization. The technical problem that in the prior art, the foam attaching precision is low is solved, and the technical effect of improving the foam attaching precision is achieved.

The invention provides a multi-sensor fusion detection method and system for the tail end of a mechanical arm, and belongs to the technical field of robots, and the method comprises the steps: carrying out the environment monitoring of a region to form a three-dimensional grid space, and obtaining the coordinate information of the mechanical arm, a to-be-detected target and an obstacle; planning a mechanical arm path by referring to the shapes and spatial position parameters of a to-be-detected target and an obstacle; the multiple sensors are all moved outwards from the interior of the mechanical arm, and the positions and angles of the multiple sensors are independently controlled, so that the multiple sensors act on the to-be-detected target for detection; adjusting the angle and position of the tail end of the mechanical arm to compensate the detection deviation according to the characteristics of the to-be-detected target in the grid space; and the tail end of the mechanical arm is controlled to move according to the shape of the to-be-detected target, so that the plurality of sensors sequentially act on each detection position of the to-be-detected target. According to the multi-sensor fusion detection method for the tail end of the mechanical arm, the dimensionality and accuracy of detection data are improved, and the detection difficulty is reduced.

The invention relates to the technical field of data processing, and discloses a shape space-based face continuous expression migration method and system. The method comprises the following steps: obtaining shape space representation data through Kendall shape space transformation, generating a source face continuous expression curve by using a spherical B-spline interpolation algorithm, constructing a two-parameter geodesic mapping function, calculating a target face interpolation point by using a De Boor recursive algorithm, obtaining a deformation sequence through Riemannian manifold parallel transmission, and obtaining the shape space representation data through the deformation sequence. And finally, performing Kendall shape space inverse transformation to obtain expression migration data. According to the method, continuous and natural expression migration is realized, and meanwhile, the workload of manual adjustment is reduced.

The invention discloses an automatic recognition and track planning grinding system and method for a special-shaped space complex component. The system mainly comprises the steps that a workpiece is fixed through a fixing tool workpiece; the visual scanning and feature extraction system performs automatic scanning and feature extraction on all welding seams on a workpiece, and plans a polishing path and a polishing posture; according to different process treatment requirements of welding seams, the tool magazine system can automatically replace tool bits; according to the task collaborative planning algorithm, effective task distribution of online operation is guaranteed for multiple welding seams, and calculation of the grinding amount, uniform distribution of grinding tasks and interference prevention are achieved. And the robot works cooperatively according to the scanned welding seam position. According to the method, the optimal polishing path is determined through laser vision; according to the shape and size of the welding seam and a planned path, a proper grinding tool bit is configured; and the grinding tools are rapidly and automatically replaced through the tool magazine, and the working efficiency is improved.

The invention relates to a ship encountering sector space risk degree space analysis method, which comprises the following steps of: establishing a ship encountering sector space model by taking a ship as a center and taking a detection distance R set by a ship-borne radar as a radius; according to the time gradient range, a sea area space, threatening the main ship, of the target ship is established, judgment is carried out according to the approaching coefficient when the two ship fields are tangent, namely the scaling multiple when the distance is closest, and the scaling multiple lt when the distance is closest; 1, continuing the following steps; determining an encounter fan-shaped space set GP after the target ship G is segmented and an encounter fan-shaped space set QP after the main ship Q is segmented; preliminarily judging the relative positions of the two ships according to the DCPA of the ship and the target ship; the minimum vector distance of the two ships is determined according to the relative heading of the two ships, and the space approaching degree of the combined sector GP is calculated. The method is an analysis method which can simplify a ship encounter space vector structure and accurately excavate and extract encounter space situations and space features of ships in different directions.

The invention discloses a modular assembly type intelligent building method for a 3D printing space special-shaped reinforced wall, and belongs to the technical field of civil construction. The 3D printing space special-shaped reinforced wall modular assembly type intelligent construction method comprises the following steps that a special-shaped wall is manufactured through 3D printing, and the space special-shaped wall serves as a module unit to be assembled to form a building body. According to the method, intelligent additive construction of a space structure is achieved through digital design 3D printing special-shaped wall module die-free construction and industrial assembly, compared with a traditional building, the method can adapt to special-shaped space body type design, die-free manufacturing integrated digital forming and high-efficiency modular industrial assembly, the complicated repairing and assembling procedure of traditional construction is omitted, and the construction efficiency is improved. The system has the remarkable advantages of high precision, high efficiency, few procedures, low emission, high energy conservation and low cost, can adapt to the unfavorable situation of shortage of construction workers in China, and improves the digital and intelligent level of the construction industry.

The invention relates to the field of building design, in particular to a special-shaped curtain wall structure layout optimization method and system. A target special-shaped space to be subjected to curtain wall structure layout is obtained, first curtain wall layout information is randomly generated, and the first curtain wall layout information comprises curtain wall structure information; according to the first curtain wall layout information and the target special-shaped space, a first special-shaped space approximation degree is obtained through calculation; performing cleaning feasibility analysis according to the first curtain wall layout information and the first special-shaped space approximation degree to obtain a first cleaning feasibility parameter and a second cleaning feasibility parameter; according to the first special-shaped space approximation degree, the first cleaning feasibility parameter and the second cleaning feasibility parameter, a first layout score is calculated, curtain wall layout information is optimized, and optimal curtain wall layout information is obtained. The problems that layout optimization is difficult, and later cleaning cost is high due to the fact that the special-shaped curtain wall is complex in shape are solved.

The utility model discloses a parallel self-locking tolerance clamping cylinder, which relates to the field of clamping devices, and comprises a shell, the top of the shell is fixedly connected with a supporting block, the bottom of the shell is fixedly connected with a lower cover, the outer wall of the shell is fixedly connected with a sensor support, the sensor support is fixedly connected with a sensor, and the sensor is fixedly connected with the supporting block. A sleeve is fixedly connected to the inner side of the shell, a pin is arranged in the sleeve in a penetrating mode, a second piston is arranged at the bottom of the pin, a piston rod is fixedly connected to the interior of the pin, and the piston rod is fixedly connected with the first piston and penetrates through the second piston to reach the interior of the pin. According to the utility model, the overall shape space size of the clamp and the gripper is reduced, so that the overall size is smaller, and the occupied space is smaller; the precision is high, the clamping and positioning precision of the tool on the workpiece is guaranteed, and the precision of the welding process is greatly guaranteed; the self-locking function is achieved, and the tool failure under the conditions of power failure and gas failure is effectively prevented; and due to the tolerance function, the workpiece can be effectively clamped within the thickness range of 0-10 mm.

The invention relates to a disc-shaped suspension type reverse umbrella disc insulator and a manufacturing method. According to the novel technical scheme, the technical standard (figure 7) of the overall structure height H value is not changed, the limitation of the structural shape space of an existing disc-shaped suspension insulator (figure 2) is broken through, all umbrella discs of the umbrella disc face (1), the middle umbrella disc (2) and the lower umbrella disc (3) are changed into reverse umbrella discs, the height (figure 3) of the umbrella disc + column head (5) is 36%-40% lower than that of an existing umbrella disc + column head (figure 4), and the column head (5) of the umbrella disc is installed in a steel cap (10) to be connected. The steel foot (7) with the zinc sleeve (8) is inserted into the steel foot hole (6) of the umbrella disc face (1) to be connected, the connection relation is formed through solidification of the cement adhesive (4), the connection portion (12) of the steel cap (10), the steel foot (7) and the locking pin (9) is exposed, a novel specific structural shape (figure 1) is created, the technical effect of no shielding obstacles (figure 8) is achieved, technical defects are eliminated, the practical requirement is met, and the space margin of technical performance improvement is expanded.

To provide a projection system capable of improving ease of use.SOLUTION: A projection system 100 is used at construction sites. The projection system 100 includes: a tripod 3, a first case 10, a projection unit, a second case 20, and a projection control unit. The tripod 3 has a tripod body 30. The tripod body 30 includes a first leg 31, a second leg 32, a third leg 33, and a pedestal 34. The first case 10 is supported by the pedestal 34 of the tripod body 30. The projection unit is held or housed by the first case 10. The projection unit projects images onto a projected surface of a construction site. The projection control unit is held or housed by the second case 20. The projection control unit controls the operation of the projection unit. The tripod 3 also has a support part 35. The support part 35 is held by the tripod body 30. The support part 35 supports the second case 20 so that at least a part of the second case 20 is located within the triangular pyramid-shaped space S1 formed by the tripod body 30.SELECTED DRAWING: Figure 2

The present invention discloses a shape space experimental design method for aerodynamic shape optimization, which includes the following steps: Step 1, given the calculation conditions for experimental design, including the number of sampling points in each experimental design matrix, the dimension of design variables, geometric constraint conditions, and the shape parameterization method; Step 2, construct a multi-objective optimization model with the sample point set as the design variable and the number of feasible solutions and the spatial uniformity evaluation index as the objective function; Step 3, use the non-dominated sorting genetic algorithm to iteratively solve the multi-objective optimization model to obtain the optimal experimental design scheme. The method of the present invention considers the uniformity of the distribution of the aerodynamic geometric shapes generated by the sample point set in the shape space and the feasibility of geometric constraints, making the initial sample point set more reasonable, obtaining more comprehensive spatial information, and having a higher quality of the initial surrogate model, thereby improving the efficiency of optimization design and analysis. The present invention is applied to the field of aerodynamic optimization technology for aircraft design.

The utility model relates to a high-frequency vibration type financial voucher automatic arranging and aligning device which comprises a shell which is installed on a base and is integrally directional, a seat plate is arranged in a square hole in the middle of an inclined table on the front portion of the shell, two baffles are vertically arranged on the seat plate side by side, and a supporting bottom plate is connected between the lower ends of the two baffles. A vibration plate is arranged above the supporting bottom plate, a vibration gap is formed between the vibration plate and the supporting bottom plate, the inner end of the vibration plate penetrates through a square hole in the bottom of the base plate and extends into the shell, a pin shaft transversely penetrating through the vibration plate is arranged in the square hole, and the size of the square hole is larger than that of the cross section of the vibration plate. A high-frequency vibration mechanism connected with the vibration plate is arranged in the shell; the inclined groove-shaped space formed by the two baffles and the supporting bottom plate is used for containing voucher files with a certain thickness, the vibration plate at the bottom supports and drags the bottom faces of financial vouchers, the vibration plate is driven by the vibration mechanism to vibrate, high-frequency vibration force is generated at the bottoms of the voucher files, friction force between the voucher files can be efficiently overcome, and the voucher files are prevented from being damaged. And rapid alignment is realized.

The present application relates to the gradual formation and the same profile combination tenon and slot cutter blade shape space curve parameterization design method, including the following steps: step one, shooting tenon and slot image; Step two, tenon and slot shape curve is discrete; Step three, calculate control point and fit approximation curve; Step four, the same profile cutter tooth space curve design: step five, gradual formation type cutter tooth space curve design; Step six, tenon and slot broach cutter tooth space curve output. The present application reduces the difficulty of tenon and slot broaching cutter space curve parameterization design; The parameterization of the cutter blade space curve realizes the unity of parameter selection, improves the stability of the broach design, and proposes the transition boundary and method of the gradual formation and the same profile combination, solves the problem of difficult to determine the gradual formation and the same profile transition method, reduces the design difficulty; At the same time, the parameterization design solves the long cycle and low efficiency problem of the traditional design method, improves the design efficiency of the broach, and reduces the cost of broach design and manufacturing.

The invention provides a test processor and a control method thereof. The test processor comprises a main body part; the bag-shaped frame is detachably combined with the main body part, and a bag-shaped space capable of placing an electronic component is formed in the bag-shaped frame; and a support member sandwiched between the pouch-shaped frame and the main body portion, the electronic component being seated in the support member, a first opening hole and a plurality of second opening holes being formed in the support member, the first opening hole and the plurality of second opening holes being formed in the support member when the electronic component is seated on the support member. One part of the terminals of the electronic component can penetrate through the first open hole, the other part of the terminals of the electronic component can penetrate through the plurality of second open holes, and the plurality of second open holes can be formed along the periphery of the first open hole.

An installation and construction device for electromechanical pipelines in irregular spaces includes a chassis. A lifting assembly is located on top of the chassis, a support plate is located on top of the lifting assembly, an adjustment assembly is located on the top left side of the support plate, a swing rod is located on top of the adjustment assembly, a horizontal plate is located on top of the swing rod, a control assembly is located on the bottom right side of the horizontal plate, and a ring is located on top of the horizontal plate. A clamping assembly is located inside the ring. This device solves the prominent problems of existing electromechanical pipeline installation and construction devices when operating in irregular spaces, such as the difficulty in adjusting the installation angle due to the fixed structure, affecting connection and transportation; the inflexible adaptation due to the fixed height, increasing cost and risk; lack of auxiliary material feeding; poor layout leading to easy interference; and simple clamping structure, cumbersome operation, and easy damage to pipelines.

The present application relates to a kind of based on shape-space joint feature's curved surface profile monitoring method, comprising obtaining point cloud data, the Laplace-Beltrami spectrum of workpiece is calculated as curved surface feature data, point cloud data is segmented into block point cloud with several different sizes, the minimum geodesic distance of any two point groups in block point cloud is calculated, space geodesic distance matrix is constructed, the statistical size is selected as the lowest Greary's G index by calculating, the clustering degree of each block point cloud is calculated according to statistical size;According to the Hotelling's T 2 statistic of each block point cloud is calculated according to clustering degree and Laplace-Beltrami spectrum, to detect abnormal curved surface.The method of the present application detects the slight change of workpiece surface by using the rich information in point cloud, and realizes the monitoring of workpiece surface quality change.

This invention discloses an embodied data generation method for category generalization operations, belonging to the field of embodied operation technology. The method includes: constructing a shape library containing warp mappings between templates and target shape spaces; acquiring the 3D model, pose trajectory, and function point annotations of source demonstration data; generating a new shape model through the shape library mapping; calculating the geometric deviation of key points; solving for the optimal alignment transformation sequence and correcting the robotic arm's motion trajectory; integrating the new model into the scene point cloud; and driving the virtual robotic arm to synthesize a new sequence of observation action pairs. This invention achieves function-aware nonlinear warp mapping, solves the function alignment problem under complex geometric deformations, and improves the generalization ability of embodied operations; it adopts a reality-to-reality paradigm, completing efficient data augmentation with a small number of annotations, significantly reducing data collection costs.

In some examples, a computing system generates a linear model representing an estimate of a shape space using a first set of registered 3D digital shapes registered to a shape template. The computing system determines a nonlinear deformation model for the shape space using a second set of registered 3D digital shapes registered to the shape template. The computing system creates an initial registration to the shape space for an unregistered shape using the linear model. The computing system predicts an updated registration based on the initial registration using the nonlinear deformation model. In response to determining a shape distance between the updated registration and the unregistered shape being below a threshold value, the computing system adds the updated registration to the first set of registered 3D digital shapes to obtain an updated first set of registered 3D digital shapes.

The invention provides a spacecraft overall structure suitable for expansion of a T-shaped assembly of a space station. The spacecraft overall structure comprises a working cabin, a multi-purpose cabin, a node cabin and a non-bearing propulsion cabin. On the basis of the configuration scheme, layout area planning of large outboard equipment is provided, and installation of functional equipment such as a large-area semi-rigid plate solar cell wing, a thermal control fluid loop, a radiator and a propelling device can be supported. The configuration enables the spacecraft to fully use the uplink envelope space of a carrier rocket, supports in-cabin carrying of large-scale equipment, and has autonomous flight and active rendezvous and docking capabilities; in the assembly stage, the T-shaped space station assembly forms a cross-shaped structure through the structure, sufficient sealed cabins, energy, heat dissipation and other resources are provided for the whole station, and butt joint and parking support is provided for visiting aircrafts and subsequent cabin sections. A large opening is formed in the radial direction of the multipurpose cabin to the ground, large equipment in the cabin is supported to be deployed out of the cabin, double inner pressure-bearing cabin doors are adopted, and the sealing safety of the space in the cabin is improved; by arranging the large observation window on the inner layer bearing cabin door, the space station has the safe direct ground observation capability.

The present application relates to the field of architectural design, and particularly relates to a special-shaped curtain wall structure layout optimization method and system. A target special-shaped space to be subjected to curtain wall structure layout is acquired, and first curtain wall layout information is randomly generated, wherein the first curtain wall layout information comprises curtain wall structure information; a first special-shaped space approximation degree is calculated and acquired according to the first curtain wall layout information and the target special-shaped space; a first cleaning feasibility parameter and a second cleaning feasibility parameter are acquired by performing cleaning feasibility analysis according to the first curtain wall layout information and the first special-shaped space approximation degree; a first layout score is calculated according to the first special-shaped space approximation degree, the first cleaning feasibility parameter and the second cleaning feasibility parameter, and optimization of the curtain wall layout information is performed to acquire optimal curtain wall layout information. The problems of difficult layout optimization and high later cleaning cost of the special-shaped curtain wall caused by the complex shape are solved.

This utility model discloses an integrated tunnel demolition trolley, including a movable frame and wheels located at the bottom of both sides of the movable frame. A portal-shaped space is formed between the wheels. A first lifting mechanism is located at the top of the portal-shaped space. First load-bearing platforms are located on both sides of the portal-shaped space, and a second load-bearing platform is located above the portal-shaped space. A cantilever that can extend to one side of the movable frame is slidably mounted above the second load-bearing platform. A second lifting mechanism is located at the extended end of the cantilever. A third load-bearing platform is located at the top of the movable frame. This integrated tunnel demolition trolley has a reasonable overall layout, can meet the demolition requirements of pipes, cables, and other components at various locations within the tunnel, has strong adaptability, and helps improve work efficiency.

The invention discloses a suspension device for a BOP trolley, which belongs to the technical field of ocean platform deck equipment and comprises a trolley adapter with openings on two sides, a support plate is arranged at the bottom of the trolley adapter, an adapter central sleeve is arranged in the middle of the trolley adapter, and a pipe string nipple is arranged in the adapter central sleeve in a replaceable manner. The mud recovery pipe string or the casing pipe string can be hung and moved on the deck surface of the moon pool, operation is easy, and reliability is high; one side of the trolley adapter is provided with a [-shaped space for accommodating the subsea pump, and the [-shaped space can be used for storing and transporting the subsea pump or other underwater equipment with the same size; after the walking board is installed on the U-shaped space, the adapter can be used as an operation platform, manual operation in a moon pool deck area can be facilitated, the suspension device is simple in overall structure, easy to operate and suitable for various operation working conditions, the equipment utilization rate of the BOP trolley is improved, and the drilling operation time is saved.

The present invention proposes a parallel fixture design shape generation method based on the DDPG reinforcement learning algorithm, which belongs to the field of parallel fixture shape generation for robot grasping tasks. The present invention uses a reinforcement learning method to automatically generate lightweight parallel fixture shapes, specifically including the design of parallel fixture shape space, state representation and action space design, the setting of grasping reward mechanism, the construction of fixture shape generation network, the update and training of generation network, etc., to achieve action selection based on a given object and a trained strategy network, thereby automatically generating a practical fixture shape. The present invention uses a parallel fixture shape automatic generation method using a reinforcement learning algorithm, which can achieve the goals of automated, generalizable, and lightweight parallel fixture shape generation.

The utility model relates to the related technical field of indoor decoration, in particular to an indoor decoration plate with multiple splicing modes, which comprises a decoration plate, an arc-shaped strip is arranged on the surface of the decoration plate, a transverse splicing component is arranged on the transverse side edge of the decoration plate, and a vertical splicing component is arranged on the vertical side edge of the decoration plate. According to the indoor decoration plate with the multiple splicing modes, the transverse splicing assemblies are combined through connecting grooves and positioning blocks, rapid horizontal butt joint is achieved, transverse displacement is effectively prevented, and the vertical splicing assemblies ensure accurate positioning and firm connection of the plates in the vertical direction through clamping strips and wedge-shaped locking structures; the decoration plate is simple in structure and convenient to use, falling caused by gravity or external force pulling is avoided, the decoration plate can easily meet the splicing requirement of a complex space under the synergistic effect of the two parts, seamless splicing can be achieved no matter a regular rectangular area or a special-shaped space with a corner and a concave-convex face, and the practicability and application scene adaptability of the decoration plate are greatly improved.

The present application relates to the technical field of large-span steel structure installation, and discloses a special-shaped space truss installation method. The special-shaped space truss is divided into a support area truss, a plurality of lifting area trusses and a plurality of embedded area trusses. The support area truss and the lifting area trusses are connected through the embedded area trusses. A temporary support system is built on the existing support structure. The support area truss is installed in parts on the temporary support system. A single lifting area truss is assembled in parts in the original position and original posture. The single lifting area truss is lifted to a preset height. The installation of the embedded area trusses around the lifting area trusses is completed. Then, the lifting point of the single lifting area truss is unloaded. The lifting of all the lifting area trusses and the installation of the embedded area trusses are sequentially completed. The present application successfully realizes the installation of the large-span folded line-shaped super-high heavy special-shaped space truss with high work efficiency, high precision and low cost.

This utility model provides an angle-adjustable curved lock for LED displays, comprising a housing, an angle adjustment mechanism, and a side-locking mechanism. A rotating base is disposed within the housing. The angle adjustment mechanism includes an angle adjustment component, an angle adjustment disc, and a knob. The angle adjustment disc is located at the top of the angle adjustment component, and the bottom of the angle adjustment component is located within the housing. The angle adjustment component is mounted on the rotating base. The knob passes through the angle adjustment disc and is located within the angle adjustment component. Multiple sets of protrusions are evenly distributed around the periphery of the angle adjustment component, each set of protrusions having a locking hole. The side-locking mechanism includes a fixing sleeve and a handle. One end of the handle is connected to the fixing sleeve, and a limiting pin passes through the fixing sleeve. The top of the limiting pin passes through one set of locking holes in the angle adjustment component. Through the cooperation of the angle adjustment mechanism and the side-locking mechanism, multi-angle splicing can be achieved, meeting the installation requirements of curved surfaces and irregularly shaped spaces, improving installation flexibility and adaptability, and broadening application scenarios.

The invention relates to the technical field of aviation pipeline testing tools, in particular to a fixing device for an S-shaped space torsion pipeline vibration impact test. The fixing device comprises a rectangular bottom frame, a first supporting frame, a second supporting frame and a top end supporting frame. A rigid three-dimensional framework is formed by combining a modularized rectangular bottom frame, a first supporting frame, a second supporting frame, a top end supporting frame and a plurality of fixing pieces together. According to the framework, the corresponding fixing pieces are arranged at the multiple key point positions in the space respectively to fix the S-shaped space torsion pipeline, and all-dimensional and multi-point-position accurate clamping and fixing of the ends and the arm sections of the S-shaped space torsion pipeline are achieved. The real installation boundary of the S-shaped space torsion pipeline is perfectly reproduced, unexpected shaking and harmful local resonance of the S-shaped space torsion pipeline in the vibration impact test process are fundamentally restrained, and the authenticity of a vibration excitation transmission path and the accuracy of test boundary conditions are ensured.

The utility model relates to the technical field of guide rail disassembling, in particular to a combined tool for disassembling a guide rail in a special-shaped space, which is characterized in that a linear head disassembling cutter is mounted on a ratchet wrench, so that the ratchet wrench can extend into a narrow area of a screw in the guide rail, and the screw with larger tightening torque can be disassembled in the special-shaped space; and meanwhile, all the components are convenient and fast to obtain, convenient and fast to assemble, easy to machine, low in cost, high in expansibility and suitable for assembly of other similar parts.

The utility model discloses an installation sliding track structure for a special-shaped space truss, and relates to the technical field of sliding tracks, which comprises a track body, a cleaning mechanism, an oil injection assembly, an oil supply mechanism and a control mechanism, and the cleaning mechanism is arranged on the outer wall of the track body and used for cleaning the sliding track for installation of the special-shaped space truss. The sliding rail installation structure for the special-shaped space truss is arranged on the outer wall of the rail body and used for conducting oil injection lubrication on the sliding rail for installation of the special-shaped space truss, the cleaning mechanism is arranged, the cleaning mechanism can clean the rail groove in real time or at regular intervals, dust, sundries and the like in the rail groove can be effectively removed, and the service life of the sliding rail is prolonged. The cleaning brush is convenient to replace by means of the connecting assembly, when the cleaning brush is abraded or dirty to a certain degree, the cleaning brush can be rapidly and conveniently replaced, the continuity of the cleaning effect is guaranteed, and meanwhile the maintenance time and the labor cost are reduced.