49 results about "Projected area" patented technology

The invention is suitable for the technical field of geological exploration, and provides a method for calculating the occurrence of a certain drill hole in a concealed ore body at an ore finding position, and the method comprises the following steps: obtaining the space coordinates of a target drill hole and a plurality of adjacent drill holes at the ore finding position; calculating a spatial distance and an azimuth angle; determining a weighting function adaptively changing along with the distance, and generating a group of space coordinates of virtual points corresponding to the adjacent drill holes; connecting the virtual points in sequence to form a polygonal curved surface, calculating the horizontal projection area of the curved surface, and calculating the vertical longitudinal projection areas of the curved surface in different directions; obtaining an inclination angle according to the ratio of the maximum vertical longitudinal projection area to the horizontal projection area; and determining the direction corresponding to the maximum vertical longitudinal projection area and the opposite direction, and determining the tendency by comparing the elevation values of the virtual points closest to the two directions. According to the method, the virtual points are connected into the polygonal curved surface, the form change of the ore body in the three-dimensional space is considered, and the method can better adapt to the concealed ore body in the complex form.

The invention discloses a ROS2-based surface exposure rapid prototyping method, device and system and a medium, and relates to the technical field of additive manufacturing. The method comprises the steps that all hardware nodes are reset and initialized, a forming platform is flush with a powder laying plane, powder is supplemented, and a scraper is reset. And importing the three-dimensional model of the part to be formed into ROS2-based slicing software, generating a support structure after attitude optimization, slicing according to a preset layer thickness to obtain a slice layer, and performing rasterization processing to generate a black and white mask image. And circulating subsequent steps for each slice layer until all slice layers are completed: descending a servo motor of a forming bin according to a preset layer thickness, providing powder by a powder supply bin, and then spreading and slicking the powder. And sending the black and white mask image corresponding to the current slice layer to the DLP to execute projection. The SLM laser node performs selective laser melting according to the projected area. And a molten pool image is captured in real time and analyzed, an analysis result is input to an ROS2 decision node to dynamically adjust process parameters, and closed-loop control is achieved.

The application discloses a kind of five-axis six-face precision machining process and equipment, belong to the field of precision machining, a kind of five-axis six-face precision machining equipment, including machine table, adjusting base, Z-axis moving module, machine head, first rotating component, second rotating component, mounting plate and clamp, the adjusting end of adjusting base is fixed with first rotating component, mounting plate is fixed in the rotating end of first rotating component, so that mounting plate is rotated around X axis under the drive of first rotating component, second rotating component is fixed to mounting plate, the rotating end of second rotating component is fixed with clamp, the rotation center of second rotating component is located at the center line of mounting plate length direction one side, so that the projection of mounting plate on clamp deviates from the central position of clamp, the projection area of mounting plate on clamp is less than the area of clamp.The application realizes five-axis six-face machining operation, and only needs once clamping, there is no cumulative error and coaxiality difficult to guarantee problem, and machining precision is extremely high.

This invention discloses a rapid calculation method for the rearward infrared radiation intensity of an S-curve nozzle, belonging to the field of infrared radiation characteristic simulation of aero-engine exhaust systems. The method comprises the following steps: determining the design parameters of the S-curve nozzle and exhaust mixer components; establishing projection models of the key shielding sections of the exhaust mixer and S-curve nozzle; calculating the projected area of ​​each component after shielding by the S-curve nozzle using an image method; calculating the flow field parameter distribution and component surface temperature of the S-curve nozzle; calculating the axial length and volume of the visible region of the exhaust gas in the S-curve nozzle; calculating the spectral transmittance and spectral radiance of the exhaust gas along the nozzle outlet centerline within the visible region of the exhaust gas, as well as the spectral radiance intensity of the exhaust gas; calculating the infrared spectral radiance intensity of the wall surface; and integrating the spectral radiance to obtain the total infrared radiation intensity. This method solves the problems of existing technologies where the simulation calculation of the infrared radiation characteristics of S-curve nozzles is complex and time-consuming, and rapid calculation methods are only applicable to axisymmetric nozzles and cannot simulate the shielding structural characteristics of S-curve nozzles.

This invention belongs to the field of image processing technology, specifically relating to an automatic measurement method and system for material quantity in a silo based on machine vision. The method includes: acquiring depth and infrared intensity images of the silo; preprocessing these images to generate a valid binary mask; determining a geometric confidence factor based on the deviation between the depth gradient and the natural angle of repose of the material being measured, as well as local curvature; and determining an environmental confidence factor by combining infrared intensity and measurement distance; repairing invalid pixels using anisotropic diffusion; predicting depth values ​​based on first-order Taylor expansion and multi-dimensional confidence weighting; converting the repaired depth image into physical height and projected area; and obtaining the total volume of material in the silo through infinitesimal element accumulation. This invention solves the problem of data loss in complex environments and improves measurement accuracy.

The invention relates to the technical field of computer aided design (CAD), in particular to an indicating surface switching method and system, and the method comprises the steps: displaying a three-dimensional model in a three-dimensional scene, and displaying an indicator used for indicating the three-dimensional model, the indicator comprises a plurality of indicating surfaces, and one indicating surface corresponds to one observation visual angle of the three-dimensional model; identifying a projection area of an orthogonal surface, facing the user, of the indicator in the current observation direction; the projection area refers to an image area formed when the orthogonal surface is projected on the projection plane along the projection direction; when the projection area is greater than or equal to a set area threshold value, newly adding an expansion surface at a position adjacent to the orthogonal surface; and when the projection area is smaller than a set area threshold value, hiding the expansion surface. Therefore, under the condition that the options are relatively limited, the number of the options can be expanded to a certain degree, and meanwhile the situation that the space is disordered due to the fact that the expansion surface is increased can be avoided.

This invention provides a method for determining the size of a pulse wind tunnel test model, comprising: determining the flow field of the nozzle and test section using numerical simulation to obtain a uniform flow field region S1 in the wind tunnel; then calibrating the uniform flow field region S2 of the nozzle and test section using a cross-shaped frame, comparing the sizes of the two uniform flow fields S1 and S2, and selecting the smaller uniform flow field region S0 as the uniform flow field region S0; scaling down the selected model under the condition of maximum test angle, with the maximum projected area M1 of the model in the direction perpendicular to the airflow occupying 60% to 65% of the cross-sectional area of ​​the uniform flow field S0; integrating the scaled-down model with the nozzle and test section into a single model, numerically simulating the entire flow process under the condition of maximum angle of attack and / or sideslip angle test angle, redetermining the model scale based on the model installation position, the shock wave position at the leading edge of the model, and the coverage of the uniform flow field, and determining the upper limit of the model length through the effective test time and the velocity of the flow field in the test section.

This invention discloses a method and system for correcting the attitude of an airborne transient electromagnetic pod coil, belonging to the field of airborne geophysical exploration. It includes: a surface-scanning industrial camera module for real-time acquisition of image information of the suspended coil; an industrial-grade integrated navigation module for outputting inertial navigation data; a time synchronization and data acquisition module for establishing a time unification mechanism; a vision processing module for extracting visual features from the images processed by the time unification mechanism; an inertial navigation calculation module for obtaining the inertial navigation state of the coil attitude angle through angular velocity integration; a data fusion and attitude estimation module for performing fusion calculations based on the combined visual features and inertial navigation state to obtain the fusion result; and a projected area and magnetic moment calculation module for calculating the coil's projected area to the ground and the effective emitted magnetic moment component based on the fusion result. This invention reduces the system complexity and electromagnetic interference risk caused by multiple inertial navigation systems, and improves the detection accuracy and stability of airborne transient electromagnetic data.

The invention relates to the technical field of hardness detection, in particular to a wear-resistant material hardness detection method and system. The method comprises the following steps: in a loading and pressure maintaining stage, irradiating an indentation area by using a multi-angle discrete spectrum light source and synchronously acquiring an image sequence; identifying a microstructure heterogeneous area based on the reflectivity difference of the image to obtain a material microstructure heterogeneous degree parameter; reconstructing the three-dimensional surface topography of the indentation area, calculating the spatial deviation between the three-dimensional surface topography and the ideal indenter model so as to determine an asymmetric distortion parameter, and obtaining a corrected indentation projection area considering the influence of the heaving or sinking of the material; a hardness value is calculated by using a hardness calculation model, a weight coefficient of the model is adjusted according to a heterogeneity parameter, and input comprises correction of an indentation projection area and an asymmetric distortion parameter. According to the scheme provided by the invention, the accuracy and representativeness of hardness detection can be improved by comprehensively quantifying the three-dimensional shape distortion and the microscopic heterogeneity.

A structural member comprising a steel plate, the structural member having a flat plate section (10a) and a bent section (10b), the bent section (10b) satisfying the following formulae (1), (2), and (3). 28 < = [square root of] area < = 45 (1) 0.17 < = r / t < = 6.90 (2) 0.22 < = n '(3) where [square root of] area is the square root [mu] m of the projected area of a minute defect on the inside of the bend of the bend section (10b), r is the minimum value [mm] of the radius of curvature on the inside of the bend of the bend section (10b), t is the thickness [mm] of the flat plate section (10a), and n' is the quartile range / average nano-hardness of the nano-hardness of the flat plate section (10a).

This invention relates to an inner ring guided tapered roller bearing (1), wherein the small-diameter side annular portion (6) and / or the large-diameter side annular portion (7) of the retainer (5) have flange-like portions (6a, 7a) extending from the column portion (8) via arc-shaped curved portions (6b, 7b) towards the inner diameter side, and have slit-like oil passages (10, 11) at multiple locations on the inner periphery of the flange-like portions (6a, 7a); and the dimensionless number Z, determined by the following formula, is 1.55 or more and 2.66 or less, in which the projected area of ​​the oil passages (10, 11) in the bearing axial direction is represented by (A), the radius of curvature at the center of the width direction of the oil passages (10, 11) is represented by (r), and the inner diameter of the flange-like portions (6a, 7a) is represented by (D). I This indicates that the outer diameter of the curved portions (6b, 7b) is determined by (D). O This means: Z = AD I 2 / π(D O 2 -D I 2 )r 2 .

This invention relates to the field of new materials technology, specifically to a low-optical-distortion, spotless, large-curvature tempered glass and its forming method. The glass substrate includes a glass matrix with a preset curvature and a large projected area. The surface physical tempering stress value of the glass substrate is 90MPa~150MPa, and the stress difference between different areas of its surface is controlled within 5MPa. Under anisotropic observation conditions, the glass substrate has no visible stress marks on its surface, and its transmitted optical distortion intensity is no greater than 0.05 diopter, with reflection waviness controlled within a preset extremely low threshold. By precisely controlling the surface physical tempering stress value between 90MPa and 150MPa, and creatively controlling the stress difference between different areas of its surface within 5MPa, the stress gradient approaches zero. This extreme stress uniformity fundamentally eliminates the optical birefringence phenomenon caused by local stress abrupt changes, resulting in completely no visible stress marks on the glass under anisotropic observation conditions.

A gas turbine combustor includes a plurality of narrowing parts that protrude toward the inside of a combustion liner. The center axis of the combustion liner includes an upstream center axis, which linearly extends in an upstream region of the combustion liner, and extends in an ejection part in a direction that is different from the extension direction of the upstream center axis. The combustion liner includes a first region and a second region, the first region and the second region being divided by a virtual plane which includes the center axis from the upstream region to the ejection part, and the virtual plane is orthogonal to a virtual flat plane that includes the center axis. A straight line obtained by extending the upstream center axis passes through the first region in the ejection part. The total value of projected areas of the narrowing parts present in the second region as viewed from the extension direction of the center axis is larger than the total value of projected areas of the narrowing parts present in the first region as viewed from the extension direction of the center axis.

This invention discloses a method for rapidly calculating engineering quantities using BIM modeling with standard steel structure component families. It relates to the field of steel structure BIM quantity calculation technology, including the use of part families for steel structure component families; binding relevant parameters with relevant parameters of the part families; and creating project template files. This invention achieves precise binding of part-level parameters and, ultimately, relies on preset detail tables in the integrated project template file to realize automated and standardized output from the BIM model to the bill of quantities. This ensures that key quantity calculation data such as projected area and gross weight / volume are automatically generated and updated in real time during the modeling process, avoiding manual intervention and secondary processing, and significantly improving the accuracy and efficiency of quantity calculation. The output detail tables have unified fields, standardized formats, and clear semantics, and can be directly used by cost estimators for cost accounting and bidding, effectively breaking down the data barriers between BIM design and engineering cost.

The application relates to a 3D grid model projection area calculation method, device and storage medium, the method comprising: obtaining bounding box data of a 3D grid model; calculating a set-precision projection maximum area PA on a preset projection plane according to the bounding box data of the 3D grid model; obtaining the bounding box of a 3D primitive on the projection plane according to the vertexes of the 3D primitive in the 3D grid model; obtaining the coordinates PP of the vertex on the projection plane according to the centroid coordinates and the vertex coordinates of the triangle; obtaining the offset coordinates OPP of the coordinates PP relative to the minimum value of the bounding box of the 3D grid model; calculating an actual projection maximum area A according to the bounding box data of the 3D grid model; and calculating the projection area of the 3D grid model according to the offset coordinates OPP, the actual projection maximum area A and the set-precision projection maximum area PA. Through the application, the technical problem of low accuracy of projection area calculation in the prior art is solved.

The present application relates to the technical field of intelligent blasting in laneway and tunnel, and discloses a method for determining blast hole positions with proportionally changed new area of blasting cavity, which comprises the following steps: determining the value range of the orifice distance and the hole bottom distance of the auxiliary holes on both sides and above the undercutting area; designing corresponding section size and design footage to determine the hole position parameters of the peripheral holes and the undercutting holes; establishing horizontal and vertical sections through the geometric center of the undercutting area to determine the projected area of the planned blasting cavity in the two sections and the row number of the auxiliary holes on both sides and above the undercutting area; setting the incremental ratio of the blasting cavity area row by row, and sequentially calculating the total new ratio of the blasting cavity area borne by the auxiliary holes of each row and the blasting cavity area borne by the auxiliary holes of each row; setting the distribution rule of the blast hole position at any one end, calculating the row distance of the blast hole orifice and the hole bottom of each row, and obtaining the position information of the auxiliary holes of each row.

This invention discloses a machining center control method and system based on artificial intelligence, belonging to the field of intelligent control technology. The method includes: creating a simulation model to generate a first trajectory of the milling head; optimizing the machining sequence and corresponding switching trajectory based on the path location and shortest distance principle of the milling head switching between different machining positions; real-time acquisition of sensing information, wear information, workpiece material, and cutting speed of the milling head, inputting cutting parameters into the cutting model, and generating a predicted cutting trajectory based on the simulation model; selecting a representative position in the predicted cutting trajectory and determining whether correction is needed; if correction is needed, calculating the correction position based on the principle of maximizing the projected area, and generating a second trajectory based on the correction position, the predicted cutting trajectory, and the optimized switching trajectory; and driving machining based on the control parameters of the second trajectory. This system effectively improves machining accuracy and efficiency through dynamic prediction and local trajectory correction.

The invention relates to the technical field of equipment analysis, and discloses a processing capacity estimation method and device of mineral processing equipment, electronic equipment and a medium, the method comprises the following steps: calculating an effective projection area in unit time according to a product result of a transverse width of an ore imaging area and a moving speed of ore passing through the imaging area in combination with a space utilization rate; calculating the area expectation under the current size fraction distribution and the quantity of ores processed by the mineral processing equipment in unit time by combining the probability density function of the size fraction; calculating the volume expectation under the current size fraction distribution; calculating the ore volume total amount and the ore weight treated by the ore preparation equipment in unit time; according to the method, image information and equipment physical parameters are fused, a visually measurable projection area and a physically computable weight are combined, the method does not depend on weighing equipment, a size fraction probability density function is introduced, area and volume expectations under current size fraction distribution are calculated, and the influence of a size fraction structure on the equipment processing capacity is reflected; and the universality is improved.

To exhibit excellent siphon performance with a simple structure having excellent workability while suppressing cost.SOLUTION: A drain member includes a lid member 21 installed at a position separated upward from a bottom surface side 10a inside an eaves gutter 10 and forming an inflow opening side 10a between the lid member 21 and the bottom surface side 2A to allow rainwater in the eaves gutter 10 to flow into a chute, the lid member 21 is disposed to close an opening of a chute portion 20 when viewed from a vertical direction, a projected area of the lid member 21 with respect to a surface orthogonal to the vertical direction is set to be larger than a projected area of the opening of the chute portion 20, and the lid member 21 is provided at a position of a height H of 10 to 50mm upward from the bottom surface side 10a.SELECTED DRAWING: Figure 5

Methods and devices for sorting silicon fragments. The method includes the steps of singulating the chunks in a singulating region and recording the projected area of a chunk in a 2D profile plane with at least one first measuring device. Recording at least one height information item above and / or below the 2D profile plane with at least one further measuring device. Calculating the size of the chunk from the projected area and the height information item and controlling at least one deflecting device as a function of the calculated size.

The utility model discloses a bottleneck mould orienting device and processing equipment, and belongs to the field of automatic processing, an upper plate of a positioning tray is fixed on a lower plate, the lower plate is fixed on a supporting plate, the lower plate is located between the upper plate and the supporting plate, the upper plate is provided with a plurality of positioning holes, the lower plate is provided with a plurality of positioning grooves, and the positions of the positioning grooves correspond to the positions of the positioning holes. The projection area of the positioning groove on the supporting plate is smaller than the projection area of the positioning hole on the supporting plate, the projection of the positioning groove on the supporting plate partially coincides with the projection of the positioning hole on the supporting plate, the positioning groove is communicated with the outside through the positioning hole, and the upper surface of the supporting plate and the edge of the positioning groove form a first positioning part. A part of the edge of the positioning hole and the upper surface of the lower plate form a second positioning part, the first positioning part is communicated with the second positioning part, through the design, the first positioning part is used for positioning the second semi-cylindrical mold, the second positioning part is used for positioning the first semi-cylindrical mold, and the bottle opening mold can be automatically oriented and aligned.

The invention provides a concrete slump detection method and system for a discharge port of a concrete mixer, and the method comprises the steps: obtaining a video image sequence of a discharge port region, extracting spatial-temporal feature points from continuous video frames, carrying out the matching of a feature descriptor fusing local binary pattern texture and motion historical information, and generating an initial displacement vector field; local decomposition is carried out on the initial displacement vector field, abnormal matching points are eliminated according to a hydrodynamic incompatibility threshold value of velocity divergence and rotation, and a sparse matching flow field is obtained; constructing a geodesic line active contour model guided by the sparse matching flow field, and iteratively segmenting a concrete edge contour; taking the edge contour as a boundary, taking a velocity vector of the sparse matching flow field as a surface gradient, adopting a Poisson reconstruction algorithm to construct a three-dimensional surface model of the concrete accumulation body, and based on the projection area, the centroid height and the volume of the three-dimensional surface model, and combining a pre-calibrated mapping relation between geometric characteristics and slump, calculating the slump of the concrete accumulation body. And determining the concrete slump value.

This application discloses a fatigue life prediction method for single-crystal superalloys based on wear mark features, aiming to provide more accurate fatigue life prediction for single-crystal materials. The method includes: acquiring three-dimensional surface morphology data of the target single-crystal material to generate a two-dimensional pseudo-color planar image; extracting wear mark features from the two-dimensional pseudo-color planar image to calculate the surface wear mark equivalent damage factor value, and substituting it into a preset fatigue failure correction equation to calculate the initial fatigue life prediction result; the preset fatigue failure correction equation is obtained by introducing the surface wear mark equivalent damage factor into the Paris equation, where the surface wear mark equivalent damage factor is used to correct the surface defect equivalent projected area of ​​the stress intensity factor in the Paris equation; if the initial fatigue life prediction result is normal, it is taken as the true fatigue life prediction result; if the initial fatigue life prediction result is abnormal, it is processed using a preset compensation learning model to obtain the true fatigue life prediction result.

The invention discloses a method for closing a discharge port of a waste rock leakage filling hydraulic support. The method comprises the following steps that 1, images of waste rock falling from the discharge port are collected; 2, segmenting the falling gangue image, and calculating the projection area of the gangue in the image; 3, according to the projection area, the actual area of gangue falling from the discharging opening is converted; 4, according to the actual area of the falling gangue, the accumulated mass of the falling gangue at the discharging opening is measured and calculated; 5, calculating a filling gangue mass threshold value; 6, according to the filling gangue mass threshold value and the falling gangue accumulated mass, whether the falling gangue mass of the discharging opening meets the requirement or not is judged; and 7, when the quality of the gangue falling from the discharging opening meets the requirement, the discharging opening of the hydraulic support is closed. According to the method for closing the discharging opening of the waste rock leakage filling hydraulic support, the problems that in the filling control process of an existing waste rock leakage filling hydraulic support, the manual judgment error is large, and the filling amount cannot be monitored in real time are solved.

The present invention pertains to a structural member comprising a steel plate and having a flat plate section (10a) and a bent section (10b), the bent section (10b) satisfying the following formulae (1) and (2). 25 < = square root of area < = 40 (1) 0.17 < = r / t < = 6.90 (2) where square root of area is the square root [[mu] m] of the projected area of a minute defect on the inner side of the bend of the bend section (10b), r is the minimum value [mm] of the radius of curvature on the inner side of the bend of the bend section (10b), and t is the plate thickness [mm] of the flat plate section (10a).

The invention discloses a power transmission line external damage hidden danger early warning method based on a visual device. The method comprises the following steps: S1, obtaining and preprocessing a power transmission line image containing a large construction machine; s2, performing shadow synthesis on the preprocessed image to obtain an enhanced image, reducing the enhanced image, and fusing the features of the three to obtain a fused feature map; s3, constructing and training a target recognition model by using the fused feature map, and optimizing parameters by using an optimization algorithm to obtain an optimal model; s4, the visualization device obtains a real-time image, optimal model recognition is carried out, and if a machine is recognized, S5 is carried out; s5, scanning the three-dimensional point cloud data by the millimeter wave radar, comparing the projected two-dimensional point cloud data with an identification result, and if the projected two-dimensional point cloud data are And S6, presetting a safe distance, combining the point cloud data and the projection area to calculate the mechanical height, and giving an alarm if the safe distance is exceeded. According to the invention, all-weather unattended operation can be realized, machinery can be accurately identified, invalid early warning can be filtered, leak detection can be reduced, early warning failure risks can be reduced, accidents such as line tripping can be avoided, and the safety of power transmission lines can be guaranteed.

The application discloses a lock-preventing plug rod combination and a rotary discharging container, and belongs to the field of cosmetic packaging materials. The lock-preventing plug rod combination comprises a piston, a screw rod and a lock-preventing structure. The piston is connected with the screw rod through screw threads, and the piston is sleeved on the screw rod. Therefore, the piston can rotate relative to the screw rod, and the function of the piston extruding a material body is realized. The lock-preventing structure is used for controlling the contact area S1 between the piston and the screw rod to be less than the projection area S2. The projection area S2 is used for indicating the projection area of the contact end surface between the piston and the screw rod on a reference plane. The reference plane is perpendicular to the axis of the screw rod. The application reduces the contact area between the piston and the screw rod, avoids the locking problem between the piston and the screw rod during assembly of the plug rod combination, reduces the defective rate of the plug rod combination in industrial production, and reduces material waste.

The present application is suitable for the geological exploration technical field, and provides a method for calculating the occurrence of a certain drill hole ore position of a concealed ore body, comprising the following steps: obtaining the spatial coordinates of the target drill hole and a plurality of adjacent drill holes at the ore position; calculating the spatial distance and azimuth; determining the weight function that changes adaptively with the distance, generating a set of spatial coordinates of virtual points corresponding to each adjacent drill hole; connecting the virtual points into a polygonal surface in order, calculating the horizontal projection area of the surface, and calculating the vertical longitudinal projection area of the surface in different directions; obtaining the dip angle according to the ratio of the maximum vertical longitudinal projection area to the horizontal projection area; determining the direction corresponding to the maximum vertical longitudinal projection area and the opposite direction, and determining the trend by comparing the elevation values of the virtual points closest to the two directions. The present application connects the virtual points into a polygonal surface, considers the morphological changes of the ore body in three-dimensional space, and can better adapt to the complex morphology of the concealed ore body.

The utility model discloses a rotary angle measurement teaching aid which comprises a main frame body and an angle measurement assembly. The connecting assembly is used for connecting the first semicircular ruler and the second semicircular ruler, so that the main frame body has an unfolded state and a folded state; in the unfolded state, the first semicircular ruler and the second semicircular ruler are arranged in an overlapping manner, so that the projection area of the main frame body is reduced; the angle measuring assembly comprises an angle mark which is used for being matched with the main frame body to observe a numerical value corresponding to the measured angle. According to the utility model, the main frame body adopts the folding structure design, so that the technical problems of overlarge axial projection area and inconvenience in carrying of the traditional angle measurement teaching aid are effectively solved. The device is simple in structure, easy to manufacture and use and suitable for large-scale production and popularization.

This invention discloses a pressure-equalizing three-position disconnect switch for environmentally friendly gas cabinets, including a stationary contact base with a V-shaped structure. The stationary contact base is mounted on an insulating beam, and the V-shaped opening of the stationary contact base is adapted to the V-shaped tip of the insulating beam. A moving contact is slidably assembled inside the stationary contact base. A linkage assembly is driven by an insulating shaft. In the linkage assembly, two moving contacts (isolation moving contact and grounding moving contact) move simultaneously through the same insulating shaft, and can be quickly switched mutually exclusive, eliminating the possibility of simultaneous closing of isolation and grounding due to misoperation. The V-shaped overlapping combination of the insulating beam and the stationary contact base can significantly improve the performance and reliability of the equipment. The natural geometric stability of the V-shaped structure (triangle principle) combined with the stacked design forms a three-dimensional support frame, reducing local stress concentration. The modular installation of the V-shape is stacked vertically, reducing the horizontal projected area, reducing the volume, and adapting to space-constrained scenarios such as underground substations.