36 results about "Single area" patented technology

The invention relates to the technical field of punching machine control, in particular to a punching machine control method based on complex blanking, which comprises the following steps of: dividing a punching part into a plurality of areas according to an initial contact area of a male die, and determining a transition area for a single area so as to determine the qualification of a die gap of a punching machine; a height stability characterization value is determined based on the judgment result that the die gap is qualified so as to adjust the pressure gradient of a punching machine, or the thickness of an equal-height gasket is adjusted according to the root circle radius of burrs on the cut surface based on the judgment result that the die gap is unqualified; determining a fillet curvature mean value based on the adjusted punching process to determine whether the rate gradient of the punching machine is qualified; adjusting a first rate at the initial stage of stamping or a second rate at the middle stage of stamping based on the judgment result that the rate is unqualified; and flaw detection is conducted on the stamped workpiece, and the optimized gradient adjustment coefficient or the rate correction coefficient is determined according to the feather degree. The machining precision of the stamping part is improved.

The invention relates to an intelligent cutting method and system based on foam board machining, and relates to the field of intelligent production technology.The method comprises the steps that the machining demand capacity of current machining areas is obtained; defining a cutting head of which the working effective capacity comprises the machining demand capacity as an effective cutting device of the machining area; an effective cutting device is randomly selected from each machining area to serve as a simulation use device, and a simulation use scheme is constructed; performing combination according to the processing areas corresponding to the same simulation use device in the simulation use scheme to construct a monomer area set; according to each processing area in the monomer area set and the corresponding simulation use device, determining monomer processing duration; defining the monomer processing duration with the maximum value as scheme processing duration; and defining the simulation use scheme corresponding to the scheme processing duration with the minimum numerical value as an efficiency use scheme, and carrying out cutting operation according to the efficiency use scheme. The cutting device has the effect of improving the overall cutting efficiency of the foam board.

The utility model relates to the technical field of beam and slab wedge block adjustment, in particular to a beam and slab wedge block adjusting plate which comprises an adjusting supporting plate, a plurality of adjusting pieces and rigidity balls are installed at the bottom of the adjusting supporting plate, the adjusting pieces are installed at the bottom of the adjusting supporting plate, and the rigidity balls are also installed at the bottom of the adjusting supporting plate. According to the adjustable supporting plate, when an operator installs the wedge-shaped adjusting plate, the initial levelness of the adjusting supporting plate can be adjusted by adjusting the adjusting piece, the adaptability of the wedge-shaped adjusting plate to gaps with different heights and angles is improved, in addition, the rigidity ball is arranged to serve as a firm supporting point, the overall rigidity of the adjusting supporting plate is improved, and therefore the adjusting supporting plate can be adjusted more stably. The situation that the adjusting supporting plate is bent or deformed is reduced, the load of the adjusting supporting plate can be dispersed through the rigidity balls, the pressure on a single area is reduced, and the service life of the adjusting supporting plate is prolonged.

The utility model relates to the technical field of high-temperature drying, in particular to a high-temperature curing drying chamber which comprises a drying box, fixing plates are fixedly connected to the two sides of the inner wall of the drying box, a supporting disc is fixedly connected between the two fixing plates, a motor is fixedly connected to the bottom of the drying box, and an output shaft of the motor extends into the supporting disc and is fixedly connected with a triangular rotating plate. The top of the triangular rotating plate is rotationally connected with three gears, the inner wall of the supporting disc is fixedly connected with a gear ring, and the gears are all connected with the gear ring in an engaged mode. The utility model has the beneficial effects that a workpiece can be uniformly heated and dried in multiple directions through revolution and white rotation, so that the uniformity and the drying of the whole workpiece are ensured, the consistency and the quality of products are favorably improved, and the continuous rotation prevents any single area from being exposed to extremely high temperature for a long time, so that the product quality is improved. Therefore, the possibility of local overheating is reduced, the performance and the structural integrity of materials are protected, and compared with a traditional device, the operation quality and the use efficiency are greatly improved.

The invention relates to the technical field of digital product renting, in particular to a renting method for electronic digital products, which comprises the following steps: periodically counting the renting quantity, the returning quantity and the damaged quantity of products in each area; determining a fluctuation parameter for the single region; determining whether the lease management of each region is qualified one by one; according to the lease management judgment result of each region, whether various types in each region are subjected to product scheduling or not is determined, the fluctuation state of lease and return conditions in the lease management process is monitored, and when it is determined that lease management of a single region is unqualified, product scheduling is performed on a single type, so that the lease management efficiency is improved.

The invention provides a method for controlling the wall thickness of a large-diameter conical high-density grid. The method comprises the following steps: sensing initial static deviation; initial static deviation elimination: executing a measurement program based on a measurement compensation device, and controlling each point location to carry out space translation along the direction of the cutter shaft according to a preset thickness so as to obtain a new milling track; process static deviation sensing is carried out, milling is carried out according to a new milling track, and a single area is divided into a plurality of areas again by executing clustering operation; and process static deviation elimination: performing layered milling on the plurality of divided areas, measuring the grid wall thickness during milling of each layer, comparing the generated wall thickness deviation with a first process static deviation elimination threshold value, and judging whether to trigger an intervention process static deviation elimination program or not according to a comparison result until the target wall thickness is met. According to the method, the deviation between most of the reference and the milling track in the high-density grid milling procedure can be realized, so that the wall thickness precision of the high-density grid is greatly improved.

The invention provides an intelligent building integrated construction platform and a construction method thereof. The intelligent building integrated construction platform comprises a movable platform, an auxiliary guide rail and a lifting mechanism. The mobile platform comprises a bottom plate and a guardrail, and the guardrail is arranged on the bottom plate; the top of the bottom plate comprises two cargo carrying areas and a manned area, and the two cargo carrying areas are located on the left side and the right side of the manned area correspondingly. Each cargo carrying area comprises four vertically-telescopic top supporting structures and a first top plate, the four vertically-telescopic top supporting structures are arranged on the bottom plate at intervals, the first top plates are fixedly connected between the tops of the top supporting structures, and the first top plates are made of flexible materials; according to the intelligent building integrated construction platform, local point loads of goods can be converted into surface loads, one first top plate is transmitted to a plurality of first top plates through hinging, and overload of a single area is avoided.

The utility model relates to the technical field of hermetia illucens breeding, and discloses a feeding mechanism for hermetia illucens breeding, which comprises a feeding frame and a breeding disc, a feeding frame is fixedly mounted at the top of the feeding frame, a mounting frame is fixedly mounted on the front side of the feeding frame, a movable feeding assembly is fixedly mounted on the front side of the mounting frame, and a feeding hopper is fixedly mounted on the feeding frame. A conveying assembly is fixedly installed at the top of the throwing frame, a groove is formed in the top of the throwing frame, and a limiting assembly is fixedly installed at the top of the throwing frame. According to the throwing mechanism for hermetia illucens breeding, through cooperation of a lead screw and a sliding seat, when moving is needed, a first motor can be started to enable the lead screw to rotate, then the sliding seat moves left and right above a limiting rod, an upper assembly can be driven to move left and right, and raw materials or feed can be thrown into hermetia illucens in a breeding disc; and internal uniform feeding can be achieved, waste of raw materials or feed caused by too much feed or raw materials in a single area is avoided, practicability is high, and application and popularization are convenient.

The utility model discloses a toy for children. Comprising a base, a colored ball group and at least two clamping plates, the base is provided with a blanking groove, the blanking groove is located at the front end of the base to form an exposed discharge port, the upper end of the base is provided with a wobble plate, the wobble plate is provided with a hole site, the hole site is communicated with the blanking groove, and the colored ball group is composed of balls of different colors. Each clamping plate is provided with color blocks with different colors and area blocks drawn with an X shape, the color blocks and the area blocks on each clamping plate are different in layout, and the clamping plates are inserted into the bottom of the wobble plate, so that each hole site in the wobble plate corresponds to a single color block or a single area block on the clamping plate. According to the utility model, different color layouts can be changed according to the replacement of the clamping plates, so that the interestingness of games is effectively increased, and the advantage of lasting playing is achieved; and meanwhile, the balls can be recycled in one step by directly pulling out the clamping plate, and the overall operation is very simple.

The present application provides a transition path planning method, device, electronic device and storage medium, which relate to the field of path planning technology. The method includes: determining transition related information, the transition related information including the area map, area size and door frame information of two adjacent areas; based on the transition related information, determining the transition path from the previous area of ​​the two adjacent areas to the next area; based on the machine operation posture in the two adjacent areas and the transition related information, determining the transition posture of the two adjacent areas; determining the area path in the next area to complete the transition path planning of the two adjacent areas. According to the structural characteristics of the robot and the characteristics of the transition area, the method plans the optimal path and the posture of the robot for transitioning between the two areas, connects the paths of the front and back areas, and combines the single area automatic path planning algorithm to realize the transition operation in the user-specified area, thereby improving the transition efficiency.

The utility model discloses an anti -extruding round -hole plastic board structure, including the substrate, its inside is provided with several groups of round holes, several groups all present the aperture setting of gradual change, and the stress distribution of base material is effectively optimized through the gradient structure design of gradual change aperture, avoid the problem that stress concentrates in single area in traditional uniform aperture design, the risk of deformation because of partial stress is too big is reduced significantly, the anti -extruding stability of base material whole is promoted, secondly, the integral forming setting of round hole edge reinforcing structure and the substrate, the structure intensity of this stress sensitive area of round hole periphery is directly enhanced, in addition, through the staggered reinforcing rib of integral forming of the top and bottom of the substrate, the stress support system of all -round is constructed, when facing the concentrated load or uneven extrusion, the force can be passed to the more extensive area through the reinforcing rib, and the overall anti -deformation ability and structure rigidity of the substrate are further improved.

The utility model discloses a wear-resistant lining plate protection assembly which comprises a protection plate, the top of the protection plate is fixedly connected with a supporting plate, the top of the supporting plate is provided with a fixing assembly, and the top of the fixing assembly is provided with a lining plate assembly. The lining plate assembly comprises a lining plate body; a first lining plate is connected into the lining plate in a clamped mode. And one side of the first lining plate is fixedly connected with a convex plate. The wear-resistant lining plate protection assembly is provided with the nuts, when the surface of the lining plate body is damaged and the lining plates need to be replaced, the nuts can be unscrewed and detached, so that the side plates can be separated from the lining plate body, and at the moment, the first lining plate can slide out of the second lining plate through the convex plates; and the first lining plate can be taken out from the lining plate body, the lining plate in a single area can be taken out and replaced conveniently, the situation that the whole lining plate is disassembled can be reduced, and the practicability of the lining plate is improved.

The invention discloses a machining method for a multi-stage air seal chute of a large pressure end sealing cover, which improves the machining efficiency and the machining quality of the chute. Selecting a model of a standard hard alloy blade; cutter body machining; the hard alloy blade and the cutter body are welded, and the alpha-angle welding type special cutter is obtained; the straight wall end of a to-be-machined chute of a workpiece blank is taken as an extension line, a vertical line is taken at the inflection point of the inclined wall end of the chute towards the extension line, the extension line and the vertical line are connected to form a boundary line, the boundary line and the outer chute wall of the to-be-machined chute define an area A, the boundary line and the inner chute wall of the to-be-machined chute define an area B, the area A is an axial machining area, and the area B is an axial machining area. The area B is an inclined machining area; selecting an end face ring groove cutter; according to the divided machining areas, the selected standard end face ring groove cutter and the manufactured alpha-angle welding type special cutter, overall machining programming of a workpiece chute is completed, and a feeding method of symmetry from the middle to the two sides is adopted for a single area; and turning the workpiece.

The invention belongs to the technical field of gas production well mouths, and particularly relates to a sand-prevention filtering gas production well mouth device and a Christmas tree, the sand-prevention filtering gas production well mouth device comprises a shell, supporting plates are symmetrically arranged on the inner wall of the shell, the supporting plates are attached to the shell, and an annular filtering plate is fixedly installed between the supporting plates; a plurality of partition plates are evenly arranged on the outer side of the annular filter plate and attached to the inner wall of the shell, and a driving assembly is arranged on one side of the shell. Natural gas must penetrate through the annular filter plate in the process of entering from the bottom of the shell and discharging from the top of the shell, sand and impurities in the natural gas can be fully intercepted through the design, the annular filter plate is divided into a plurality of independent areas by the partition plates, and the driving assembly drives the annular filter plate to rotate, so that all the areas participate in filtering work in sequence; according to the circulating filtering mode, the situation that a single area bears filtering pressure for a long time is avoided, the local blocking phenomenon is effectively prevented, and filtering is conducted in each area in a relatively easy state.

The invention provides a fireproof partition design method suitable for a continuous space in a public building. The fireproof partition design method comprises the following steps that S1, the boundary range of the continuous space in the public building is recognized; s2, combustible parameters in the boundary range are determined; s3, counting the total fire load in the continuous space according to the combustible parameters; s4, according to the space clear height and the total fire load, determining the division number of fire partitions; s5, calculating a fire numerical value of the divided fireproof subareas; s6, determining the fireproof level of the divided fireproof subareas according to the fire numerical value; s7, providing fireproof measures corresponding to different fireproof levels of the fireproof subareas according to the different fireproof levels of the fireproof subareas; s8, verifying the effectiveness of the fireproof partitions and the fireproof measures thereof through numerical simulation; according to the method, the space clear height and the total fire load are selected as design indexes, compared with a single area index, the fire risk in the building can be directly and accurately represented, and more scientific and reasonable technical guidance can be provided for building fire partition division.

The utility model relates to the technical field of concrete, and discloses an intermittent concrete mixing plant which comprises a base body, a mixing barrel is arranged above the base body, a rotating column is arranged in the mixing barrel, a plurality of baffles distributed circumferentially are fixedly connected to the outer surface of the rotating column, a rotating disc is rotationally connected to the front face of the mixing barrel, and the rotating disc is fixedly connected with the base body. The rotating column is fixedly connected with a rotating disc, and the inner wall of the rotating disc is rotationally connected with a plurality of rotating rods distributed in the circumferential direction. According to the intermittent concrete mixing plant, a plurality of baffles are arranged, so that a mixed material fed into the mixing barrel can be independently distributed, the mixed material flows in the mixing barrel under the pushing of the baffles, and the mixed material in an area can be independently stirred by matching with a stirring rod; and the mixed liquid is sprayed into the single area, so that the mixed materials in the stirring barrel can be quickly mixed, the mixing speed is increased, and the mixing can be more uniform.

The invention discloses a rapid organization construction method for small units in a limited space, which comprises the following steps of: S1, adjusting an original through cabin pouring scheme of a water turbine layer and a generator layer into separated cabin pouring, and preferentially and independently pouring a No.1 unit area and a No.2 unit area; s2, performing structure review calculation on the basis of the original design, and compiling a calculation report; a regional construction mode is adopted, a supporting column strengthening structure is additionally arranged, the single-time concrete pouring amount is reduced, the large-size concrete construction difficulty is lowered, the quality problems such as cracks are reduced, resource allocation is more flexible, waste caused by concentrated input is avoided, the resource utilization rate and the structure construction quality can be improved, and the construction cost is reduced. Construction risks are dispersed to a plurality of independent areas, the problem of a single area does not affect the overall project progress, the project risk resistance is improved by combining real-time monitoring of structural deformation in the construction process, and the project reliability is superior to that of a traditional construction method.

The utility model relates to the technical field of refrigerated compartments, in particular to a modularized refrigerated compartment plate mounting structure which comprises a connecting block, a spherical spring clamping lock is arranged on the outer side of the connecting block, an upper side plate and a lower side plate are arranged at the two ends of the connecting block, a ball groove is formed in the upper side plate, and a sliding groove is formed in the outer side of the upper side plate. A mounting cavity is formed in the sliding groove, and a mounting block is arranged in the mounting cavity. According to the modularized refrigerated cabin compartment plate mounting structure, the effect of mounting a top plate is achieved through matched use of sliding grooves and sliding blocks, the effect of pushing limiting blocks is achieved through matched use of sliding rods and supporting springs, and the effect of clamping and fixing the top plate is achieved through matched use of limiting blocks and limiting grooves; and the top plate is convenient to disassemble by forming the threaded holes, the situation that a cabin is damaged due to the fact that a large amount of glue is used is avoided, and the effect of independently disassembling and assembling the single area is achieved through modular installation.

The application discloses a kind of multi-area fault processing method, system, program, equipment and storage medium based on shared control resource, method includes: control main station handles single area fault, calculates the control amount of each type of control resource according to single area fault strategy;Control substation calculates the remaining controllable amount of each type of control resource according to the total amount of each type of control resource locked before failure minus the control amount of each type of control resource allocated by single area fault;After the information of multi-area combination fault is obtained by coordination control master station, wait for delay, so that the remaining amount of each type of control resource is refreshed to current state based on the remaining controllable amount of each type of control resource;The control amount of each type of control resource is calculated according to multi-area combination fault strategy, and the remaining amount of each type of control resource is used as current controllable amount, which is allocated from it, to complete multi-area fault processing;The application comprehensively considers the scene of multi-area fault decentralized decision from the perspective of control resource remaining power and feedback time, with the characteristics of overall, accurate and easy to implement.

The utility model belongs to the technical field of marine deposition dynamics in-situ monitoring, and particularly relates to a portable coral reef site sediment flux monitoring device which comprises a support, a turbidity monitoring mechanism, a wave tide monitoring mechanism, a flow velocity monitoring mechanism and a collecting mechanism. The frame is of a cuboid frame structure. The side plates are fixedly arranged on the front and rear sides of the frame; the turbidity monitoring mechanism is fixedly arranged at the top of the frame; the wave tide monitoring mechanism is fixedly arranged at the bottom in the frame; the flow velocity monitoring mechanism is arranged on the top of the frame. The collecting mechanisms are arranged on the front side and the rear side of the support respectively and comprise outer sleeves, inner sleeves, connectors, collecting bottles and connecting assemblies. The device is used for sediment capture and hydrodynamic parameter synchronous observation, can solve the technical problems that an existing monitoring device is difficult to arrange, single in function and has errors in spatio-temporal data registration, is easy to arrange and recycle and convenient to carry, can achieve multi-data collection in a single area, and improves spatio-temporal data matching performance and precision.

The fabric comprises an inner layer and a surface layer from inside to outside, the surface layer comprises a first area and a second area, the first area and the second area are distributed in a shape like a Chinese character'tian ', the inner layer comprises a third area and a fourth area, the third area and the fourth area are distributed in a shape like a Chinese character'tian', and the first area corresponds to the third area up and down. The second area corresponds to the fourth area vertically, and the surface layer and the inner layer are connected through sewing. The nano fibers and the polyester fibers are interwoven to form the two areas, the two areas intersect with each other, so that the area of a single area is reduced, the surface tension of the whole fabric is reduced due to the fact that the two areas intersect with each other and are combined with the organization structure of the fabric, permeation and attachment of stains are facilitated, and the fabric is comfortable to wear. Two areas are formed on the surface layer through the loofah fibers, so that gaps between the yarns in the two areas are different, the nanofibers are protected, and primary decontamination is formed at the same time.

The invention discloses a helicobacter pylori rapid detection test bar which comprises a base box, a first cavity is formed in the right side of the base box, a second cavity is formed in the left side of the base box, a sliding cover is arranged at the front end of the second cavity and arranged in the left side of the front end wall of the base box in a limited sliding mode, and a top plate is installed at the top end of the base box. Mounting boxes are arranged in the base box at equal intervals, a third cavity is formed in the left side of each mounting box, a fourth cavity is formed in the right side of each mounting box, a liquid box is vertically and slidably connected to the inner side of each third cavity through a first spring, a sealing plate is mounted at the top of each liquid box, and a pressing block is slidably arranged at the upper end of each sealing plate in a limiting mode; by arranging the paper placing assembly, the rotating assembly and the paper placing assembly are matched and linked, so that samples on sampling labels can be uniformly smeared on test paper, and by arranging a plurality of mounting boxes in the base box, single-time single-area detection of multiple persons can be realized during use.

The utility model discloses a flame -retardant prevents the leakage's phase change constant temperature blanket, including bottom layer, the bottom layer is by the aluminium foil of outer layer and the high molecule film of inner layer compositely bonded and is formed, the four around of bottom layer is equipped with the edge pressing, and inside is formed with the packing space, be equipped with the phase change layer in the packing space, the surface layer is equipped with one side to bottom layer of phase change layer back, bottom layer, phase change layer with surface layer between form a constant temperature blanket, outer frame, the outer frame sets up in the outer periphery of constant temperature blanket, and the corner of outer frame all is equipped with the notch, any one the notch all is equipped with the locating post, between adjacent outer frame. The utility model has the beneficial effect of: solve the phase change constant temperature blanket in the prior art, all adopt the overall structure, and the installation process is more complicated, and after cutting, easy to influence the leakproofness, after the installation is completed, subsequent also inconveniently replaces or maintains to the single area, in the virtual, reduced the constant temperature blanket work efficiency's technical problem.

To provide a field registration method, a field registration system and a field registration program, capable of managing a work area where work is performed by dividing into a plurality of discontinuous periods as a single area.SOLUTION: The field registering method includes extracting (S504), as an extracted work region (81), a work region satisfying a predetermined extraction condition among work regions which are represented by work region information stored in a work region information storage portion (432) and in which a working device (2) performing work while moving is estimated to have performed the work, receiving (S506) an operation of selecting at least a part of the extracted work region (81) as a selected work region (82) by a user, and registering (S404), as a registered field (85), a registered candidate field (84) whose position and range are calculated based on a set of the selected work region (82) in a registered field information storage portion (433).SELECTED DRAWING: Figure 4

The utility model belongs to the technical field of medical instruments, and discloses a closing clamp and an installation device thereof, the closing clamp comprises a plastic hinge, the plastic hinge is provided with a small window and through holes, and the through holes are arranged at the folding positions of the two ends of the small window, in the embodiment of the utility model, the plastic hinge of the closing clamp is provided with the small window, and the folding positions of the two sides of the small window are hollowed through the through holes. The design of the small window aims to provide additional structural support and flexibility, and especially when the closing clamp needs to adapt to tissues of different shapes and sizes, the small window can enable the closing clamp to be more flexible in the closing process, and direct pressure on the plastic hinge is reduced. Through holes are dug in the closing positions of the two ends of the small window so as to reduce stress concentration generated on the plastic hinge when the closing clamp is closed, stress can be effectively dispersed through the design, too large stress is prevented from being generated in a single area, and therefore the risk that the closing clamp is broken in the operation process or after implantation is reduced.

The utility model is suitable for gravity material rack technical field provides a kind of gravity material rack structure with process state partition, it includes: bottom plate, the top of bottom plate is fixedly installed with first support plate and second support plate, the first support plate and the second support plate are respectively fixedly installed with second material rack and fourth material rack, the side of fourth material rack is fixedly installed with the first baffle for blocking material box.This scheme provides the gravity material rack structure with process state partition solves the technical problem that current gravity material rack can only transport goods to single area, and then when material box needs to circulate between three processes, at least two gravity material racks are used, leading to the technical problem that empty material box cannot be transported back at one time.

The utility model discloses a double-layer rotor scale which comprises a scale body, the interior of the scale body is of a cavity structure and is provided with a bin partition plate, the bin partition plate divides the scale body into an upper cylinder and a lower cylinder in the vertical direction, the bin partition plate is provided with a communicating hole for communicating the upper cylinder and the lower cylinder, and the communicating hole is of a fan-shaped structure concentric with the bin partition plate. And at least two separation strips are uniformly arranged in the opening area of the communication hole and are arranged in the radius direction of the communication hole of the fan-shaped structure. According to the utility model, the separation strips are arranged on the communication holes, so that powder cannot be stacked in a single area like a single communication hole structure in the process of reaching the lower barrel from the upper barrel to the lower barrel from the communication holes, and can be stacked in each area separated by the communication holes under the action of the separation strips; the height of the highest point of the powder stacked in the lower barrel in the partitioned mode can be reduced, the risk that the powder intrudes into the upper barrel is reduced, and then the accuracy of the powder metering and conveying process is improved.

The present application relates to the technical field of workpiece clamping, and discloses a multi-specification workpiece clamping and feeding mechanical hand for a PVD nanometer coating production line, which comprises a supporting and regulating mechanism, a clamping mechanism is installed on the supporting and regulating mechanism, a plurality of clamping mechanisms constitute a first clamping group and a second clamping group, the contact positions of the first clamping group and the workpiece and the contact positions of the second clamping group and the workpiece are distributed at intervals; a first transmission mechanism is in transmission connection with the first clamping group; a second transmission mechanism is in transmission connection with the second clamping group; a variable-speed driving mechanism comprises a motor, the first transmission mechanism and the second transmission mechanism are sequentially actuated by using the variable-speed driving mechanism, the first clamping group and the second clamping group alternately clamp the workpiece in sequence, so that the clamping constraint borne by the workpiece is periodically transferred in space during the carrying process, which is beneficial to avoiding that the clamping stress is concentrated in a single area for a long time, and reducing coating cracking or workpiece creep deformation caused by local stress accumulation.

The utility model provides a pin-enhanced double-transistor packaging structure. The pin-enhanced double-transistor packaging structure comprises a double-base-island lead frame; the plurality of frame units are arranged on the surface of the double-base-island lead frame at equal intervals. The utility model provides a pin enhanced double-transistor packaging structure, which is formed by a newly designed double-base island lead frame structure which is formed by a plurality of frame unit arrays, each frame unit comprises two base islands and six pins, the base islands are respectively connected with the pins, the area of a single PIN2 pin and the area of a single PIN5 pin are increased, the areas of the two base islands are decreased accordingly, and due to the fact that the areas of the pins are increased, the area of the two base islands is increased. According to the double-transistor packaging structure, the glue locking capacity of the frame is greatly improved, the glue crack phenomenon during rib cutting can be effectively improved, and the barb-shaped glue locking structures are additionally arranged on the surfaces of the pins, so that the double-transistor packaging structure is further enhanced and stabilized, and the reliability of the double-transistor packaging structure is improved. And the pin loosening problem generated when the component is subjected to stress in each link of packaging production or application is prevented.

The utility model provides a protective device for mining machinery, which relates to the technical field of protective devices for mining machinery, and comprises a base plate, a storage groove is formed in the base plate, a fixed shaft is rotatably connected in the storage groove, a fixed frame is fixedly mounted on the outer surface of the fixed shaft, and the fixed frame is fixed on the base plate. A connecting frame is fixedly installed on the outer surface of the fixing frame, a plurality of sets of positioning holes are formed in the fixing frame, positioning blocks are slidably connected into the positioning holes, and protection plates are fixedly installed on the outer surfaces of the positioning blocks. And when the mining machinery in a single area is maintained or the protection plates are replaced, connection between the insertion rods and the connecting frames can be removed, at the moment, the protection plates at the positions where the insertion rods belong to can be removed, the function of opening the protection plates separately is achieved, and the protection plates can be operated according to the maintenance positions of different areas.