89results about How to "Increase structural flexibility" patented technology

The invention discloses a novel flexible ecological drainage ditch structure and a construction method thereof, belongs to the technical field of drainage ditch construction, and solves the problems of serious deformation and cracking of a traditional concrete drainage ditch. The structure specifically comprises an anti-corrosion layer, a drainage layer and an anti-seepage layer. The seepage prevention layer is arranged at the bottom of the drainage ditch, the drainage layer is laid on the seepage prevention layer, and the anti-corrosion layer is laid on the drainage layer. According to the drainage ditch, the innovative design of combining the anti-corrosion layer, the drainage layer and the anti-seepage layer is adopted, so that a lower seepage body is effectively drained, the ditch body strength is improved, the basic requirements of confluence, quick drainage and seepage prevention of the drainage ditch are met, and the overall shear resistance and erosion resistance of the drainage ditch are improved; the construction method is suitable for construction of loose accumulation body slopes such as slide slag accumulation body slopes, waste slag accumulation bodies and mine dumping sites; the method has the advantages of being high in plasticity, high in terrain adaptability, high in environment flexibility, good in structure flexibility and the like.

The invention discloses a monitorable smoke dust treatment device for steel plate numerical control cutting, and relates to the technical field of steel plate numerical control cutting machining, the monitorable smoke dust treatment device comprises a numerical control table and a dust collection assembly, a portal frame is horizontally erected above the numerical control table, and driving tables are installed at the bottoms of the left side and the right side of the portal frame; the dust collection assemblies are installed on the side edges of the portal frame in a bilateral symmetry mode. According to the monitorable smoke treatment device for numerical control cutting of the steel plate, the dust collection assembly is installed on one side of the portal frame, smoke generated by machining the surface of the steel plate through numerical control cutting equipment can be monitored and sensed in real time through a smoke sensor installed at the bottom of a pneumatic sliding block, and therefore the pneumatic sliding block drives a dust collection cover at one end of an adjustable hose; according to the dust collection device for the numerical control cutting equipment, the effect of tracking operation is achieved by cooperating with the operation of the numerical control cutting equipment, synchronously and horizontally and simultaneously cooperating with the combined operation of the driving table and the portal frame, and therefore smoke generated during cutting is synchronously sucked and collected in the dust collection assembly in a centralized mode.

The utility model relates to the technical field of clamps, in particular to a metal mechanical property testing machine clamp tool which comprises a base, two supports are fixedly installed on the top side of the base, a bidirectional lead screw adjusting structure is arranged on the two supports, and two T-shaped moving seats are arranged on the bidirectional lead screw adjusting structure. The clamping device has the advantages that the bidirectional lead screw adjusting structure, the T-shaped moving seat, the workpiece lifting structure, the first supporting plate, the second supporting plate, the fixing bolt, the rotating disc, the fixing inserting hole, the first clamping block, the second clamping block, the pressing hole and the pressing groove are arranged in a matched mode; according to the clamp tool, the first clamping block and the second clamping block with proper sizes can be selected according to the shape and the size of a workpiece, so that the clamp tool can clamp cylindrical and rectangular metal materials with staggered sizes, the application range of the clamp tool is expanded, and the practicability and the structural flexibility of the clamp tool are improved.

The utility model discloses an intelligent energy consumption acquisition device comprising a housing, and an inner cavity of the housing is provided with an energy consumption acquisition mechanism. The protective shell is arranged at the front end of the outer shell, the protective shell and the outer shell are fixed through screws, an inwards-sunken storage groove is formed in the upper portion of the protective shell, guide grooves are formed in the two sides of the storage groove correspondingly, and rotating grooves are formed in the front end and the rear end of each guide groove correspondingly; the protection plate is arranged on the upper end face of the storage groove, movable rotating shafts are fixedly arranged on the two sides of the protection plate, the movable rotating shafts extend into the guide grooves, the movable rotating shafts are located in the guide grooves and are in sliding limiting with the guide grooves, and the movable rotating shafts are located in the rotating grooves and are in rotating fit with the rotating grooves. The operation is inconvenient; and the heat dissipation performance is poor.

The utility model relates to the technical field of sintering furnaces, in particular to a silicon carbide valve plate sintering furnace which comprises a sintering furnace body, an inner container is arranged in the sintering furnace body, a plurality of heating rods are arranged on the three side faces of the inner container, a positioning clamping groove is formed in the bottom side in the inner container, a positioning clamping block is connected to the inner wall of the positioning clamping groove in a clamped mode, and the inner wall of the positioning clamping block is provided with a clamping groove. The top side of the positioning clamping block is fixedly connected with a storage plate, and the middle of the top side of the storage plate is fixedly connected with a mounting frame. The silicon carbide valve block placing device has the advantages that through the matched arrangement of the heating rods, the positioning clamping grooves, the positioning clamping blocks, the object placing plates, the mounting frames, the fixing insertion holes, the positioning grooves, the positioning plates, the isolation plates, the isolation plate fixing structures, the air holes and the limiting structures, a plurality of silicon carbide valve blocks can be vertically and independently placed, and the situation that the silicon carbide valve blocks are stacked is avoided; therefore, the silicon carbide valve plates are uniformly heated, and the qualified rate of sintered finished products is greatly improved.

The utility model relates to the technical field of building engineering construction, and particularly provides a good-quality formwork for a silo slip form. The template comprises an inner sliding and lifting template and an outer sliding and lifting template, dovetail grooves are formed in one side of the inner sliding and lifting template and one side of the outer sliding and lifting template respectively, a plurality of inner wall plates are arranged in the dovetail grooves in a clamped and sliding mode, each inner wall plate is of an arc-shaped structure, the inner wall plates abut against one another, and the inner wall plates are connected with the dovetail grooves in a clamped and sliding mode. Due to the arrangement of the inner sliding and lifting formworks, the outer sliding and lifting formworks and the inner wall plate, when sliding and lifting are not smooth due to expansion of concrete, a constructor can easily adjust the position of the limiting plate on the guide block, and rapid unlocking of the inner wall plate and the inner sliding and lifting formworks is achieved; the inner wall plate can be conveniently taken down and reinstalled by a constructor so as to adapt to the height change in the sliding and lifting process, the operation difficulty is reduced, and meanwhile the construction safety and quality are guaranteed.

The adjustable supporting rod comprises a supporting rod body, a threaded rod is movably connected to the lower portion of the interior of the supporting rod body, a cushion block is movably installed below the threaded rod, a supporting piece is fixed to one side of the cushion block, an installation hole is formed in the upper surface of the supporting piece, and the threaded rod is movably connected to the lower portion of the supporting rod body. Connecting pieces are fixed to the two sides of the supporting rod body, and fixing bolts penetrate through one sides of the connecting pieces. According to the adjustable supporting rod for handrail shutter installation, the threaded rod, the cushion blocks, the supporting pieces and the installation holes are used in cooperation, the threaded rod is rotated to stretch out and draw back in the supporting rod body, the cushion blocks stretch out downwards, and therefore the supporting height of the cushion blocks to the supporting rod body is adjusted; the height of the supporting rod body can be conveniently adjusted by a worker according to installation requirements, the fence range of the handrail is wider, the cushion block can be fixed to the ground through the installation holes and the supporting pieces after adjustment is completed, the stability after installation is ensured, and practicability is high.

The invention discloses a metasurface structure for reducing normal incident scattering of an antenna, and the metasurface structure employs a double-layer design, combines an absorption layer and a frequency selection surface layer, and achieves broadband absorption through a periodically two-dimensional unfolded microstrip patch unit and a three-layer resistor loading metal ring. Ansys electromagnetic field simulation software verifies that the structure effectively reduces the radar cross section of the microstrip antenna within the frequency band of 3-10 GHz, and ensures the normal work of the antenna at the same time. Through deep analysis and simulation optimization, key factors influencing the performance are determined, and the balance between the wave permeability and the wave absorbing property is realized. Besides, an adjustable resistance circuit, a reconfigurable mechanism, an intelligent algorithm and a sensor technology are integrated, the stability and the automation level of the antenna performance are further improved, and an effective solution is provided for improving the scattering reduction effect during forward incidence of radar waves.

The bearing bracket comprises a base, shock absorption seats are fixedly installed at the four corners of the upper end of the base, installation frames are installed at the upper ends of the shock absorption seats, and a top plate is installed between the upper ends of the installation frames. The device further comprises a plurality of brackets which are arranged among the four mounting frames, sliding cavities are formed in the two sides of the front end and the rear end in each bracket, inserting rods are mounted in the sliding cavities, inserting grooves are formed in the inner sides of the mounting frames, the number of the inserting grooves is a plurality, and the inserting grooves are sequentially distributed at equal intervals. The inserting rods are matched with the inserting grooves in an inserting manner; and the protection plates are arranged on the periphery of the bracket, the protection plates are connected with the bracket through rotating shafts, movable baffles are installed in the protection plates, the protection plates are connected with the movable baffles in a sliding mode, and the bearing bracket can be suitable for placement of castings of different sizes and specifications on the premise that the utilization rate of the internal space is guaranteed.

The utility model discloses a numerical control double-shaft drilling and milling tapping device, which relates to the field of numerical control machine tools, and comprises a workbench, the lower surface of the workbench is fixedly connected with a support column, one end of the support column far away from the workbench is fixedly connected with a moving wheel, the upper surface of the workbench is fixedly connected with a protective cover, and a transmission mechanism is arranged in the workbench; a connecting seat is fixedly connected to the lower surface of the fixed seat, a connecting rod is connected to the lower surface of the connecting seat, a drilling and milling head is fixedly connected to the end, away from the connecting seat, of the connecting rod, an electric push rod is fixedly connected to the interior of the drilling and milling head, and a moving piece is fixedly connected to the output end of the electric push rod; the transmission mechanism is embedded in the side wall of the workbench, the connecting base is connected with the connecting rod through the magnetic locking mechanism, the drilling and milling head is made of a carbon fiber composite material and internally provided with a cooling channel, and the effects of the numerical control double-shaft drilling, milling and tapping device which improves the machining precision of the drilling and milling device and is simple in structure and good in heat dissipation are achieved.

The invention discloses a double-pin-bush sealing system lubrication crawler belt and an assembling method thereof in the technical field of bulldozer chassis systems, and aims to solve the technical problems of abrasion of pin bushes and short service life of the crawler belt. The lubricating track comprises a driving wheel, a track link, a pin shaft, an inner pin sleeve, a lining and a track shoe, the track shoe is fixed to the track link, the track link is connected with the pin shaft in an interference fit mode, the pin shaft is in clearance fit with the inner pin sleeve, the inner pin sleeve is further sleeved with an outer pin sleeve, the outer pin sleeve rotates around the inner pin sleeve, and the lining is arranged on the outer pin sleeve. And one end of the lining is in close contact with the outer pin sleeve, and the other end of the lining is in interference fit with a track link section through a sealing assembly, so that a sealing system is formed. The performance of the crawler belt can be improved, the service life of the crawler belt can be prolonged, meanwhile, the maintenance cost is reduced, and the overall working efficiency of engineering mechanical equipment is improved.

The invention discloses an improved centrifugal fan blade in the technical field of fan blades, comprising a mounting block, a center hole is provided in the middle of the mounting block, a clamping groove is symmetrically provided on the inner wall of the center hole, a main shaft is clamped and arranged inside the center hole, a cavity is provided inside the main shaft, limiting sliding holes and fine holes are symmetrically provided on the inner wall of the cavity, a main shaft clamping mechanism is connected inside the cavity, a plurality of mounting grooves are evenly provided on the outer side of the mounting block, two slots are provided on the inner wall of the mounting groove, a connecting block is provided inside the mounting groove, two through holes are provided on the connecting block, a blade is connected to the outer end of the connecting block, and a connecting block limiting mechanism is provided in the mounting groove; the invention drives the screw to rotate by rotating a turning handle, drives the U-shaped threaded block to move, separates it from the through hole and the slot, and can rotate the rotating plate and the U-shaped mounting block, so as to facilitate the removal of the connecting block from the mounting groove, realize the disassembly of the blade, and facilitate the cleaning and maintenance thereof.

The utility model discloses a cleaning and descaling device for lens production, which comprises a shell, a cleaning cavity is arranged in the shell, and an upper cover is mounted at the upper end of the shell; the cleaning device further comprises a placing frame arranged in the cleaning cavity, limiting cavities are formed in the middle positions of the two sides of the inner wall of the shell, sliding blocks are fixedly arranged on the two sides of the placing frame, and one ends of the sliding blocks are located in the limiting cavities. The metal oscillation sheets are fixedly mounted at the top of the cleaning cavity, the number of the metal oscillation sheets is three, and transducers are mounted at the lower ends of the metal oscillation sheets; the cleaning pipe is arranged at the upper end of the cleaning cavity, five nozzles distributed at equal intervals are installed at the bottom of the cleaning pipe, a conveying pipe is installed at one end of the cleaning pipe, one end of the conveying pipe extends to the outside of the shell, and a three-way valve is installed at one end of the conveying pipe; the problem that stubborn dirt on the surface is difficult to clean due to a single cleaning structure of a cleaning device is solved.

The application discloses a kind of associated multi-intersection traffic flow prediction methods.The steps of the present application are as follows:1, collect the traffic flow data of associated intersections, and divide the intersection traffic data into training set, validation set and test set after preprocessing;2, use CNN to extract spatial features from the input intersection traffic data;3, use Transformer to extract time features by inputting spatial features;4, after the Decoder layer is fully executed, the three time window data are finally input into three vectors, and the three vectors are stacked and input into the average pooling layer;5, set the model parameters;6, train the model until the maximum training period, and use the final model to predict the traffic flow of associated multi-intersections.The application uses CNN and Transformer to extract the spatial and temporal features of associated multi-intersections.Learning time encoding is used to embed the position encoding of Transformer, which injects position information and time information into the model together, helping the model to better learn the time features of traffic volume.

A road and bridge construction safety protection device comprises a protective fence, a position control shaft rod, a fixed baffle, a pull ring, a positioning lock sleeve, a driving gear disc, a driven gear disc and a fixed cover plate, a protective net is connected into the protective fence, a connecting lug is arranged on one side of the protective fence, a connecting block is arranged on the other side of the protective fence, and the connecting lug is connected with the connecting block through the position control shaft rod. The position control shaft rod is sequentially connected with the connecting lug and the connecting block, the connecting block is provided with a position control protruding block, the position control shaft rod is provided with a position control groove, the position control protruding block is matched with the position control groove, the position control protruding block is connected with the position control groove, the position control shaft rod is provided with a movable pressing plate, the lower portion of the movable pressing plate is attached to the connecting lug, the connecting lug is provided with a sliding way, and the sliding way is matched with the movable pressing plate. A movable pull rod is arranged on the upper portion of the movable pressing plate and sequentially penetrates through a spring strip, the fixed baffle and the fixed cover plate, the lower end of the spring strip is connected with the movable pressing plate, and the upper end of the spring strip is connected with the fixed baffle.

The utility model relates to the technical field of clamps, in particular to a fixing clamp for testing and detecting a high-frequency transformer, which comprises a base, a supporting seat is fixedly mounted on the top side of the base, an electric push rod is fixedly mounted in the middle of the bottom side of the supporting seat, and the output end of the electric push rod is fixedly connected with a movable disc seat. The high-frequency transformer clamping and fixing device has the advantages that through matched arrangement of the electric push rod, the movable disc base, the hinge base, the connecting rod, the movable base, the clamping and fixing structure, the guide sliding groove and the guide rod, the four side faces of a high-frequency transformer can be clamped and fixed at the same time, and the situation that the high-frequency transformer deviates is avoided; according to the fixing clamp for testing and detecting the high-frequency transformer, normal proceeding of the detection process and the detection efficiency are guaranteed, high-frequency transformers of multiple sizes can be pressed and fixed, the application range of the fixing clamp for testing and detecting the high-frequency transformer is expanded, and the practicability and the structural flexibility of the fixing clamp for testing and detecting the high-frequency transformer are improved.

The invention discloses an organic liquid hydrogen storage tank assembling shell structure which comprises an inner tank, an inner support is fixedly connected to the outer surface of the inner tank, the inner support is annular, an outer tank is fixedly connected to the outer surface of the inner support, and the outer tank is composed of a first tank shell and a second tank shell. The fabricated hydrogen storage tank has the advantages that all parts of the fabricated hydrogen storage tank are prefabricated and assembled in a factory, the field installation workload is small, construction is easy, and the installation period can be greatly shortened. The assembly type hydrogen storage tank adopts an advanced sealing technology and a high-strength material, so that the sealing performance and the safety of hydrogen can be ensured. The assembly type hydrogen storage tank can be customized according to actual requirements, the size and the capacity can be adjusted according to requirements, and the requirements of different users are met. The manufacturing cost of the assembled hydrogen storage tank is lower, and meanwhile, due to the characteristics of high efficiency and energy conservation, the operation cost can be reduced in the use process, and the economic benefit is improved.

The invention discloses a shock absorber technology and aims to provide an anti-collision cover for a split type shock absorber and a manufacturing method of the anti-collision cover, the anti-collision cover is characterized by comprising a fixed part and a movable part, the fixed part comprises a flange part and a barrel part which are integrally formed, the flange part is connected with a shock absorber body in a close fit mode, and the barrel part is connected with the fixed part in a close fit mode. The movable part can freely slide along the cylinder body of the shock absorber through a sliding structure and the cylinder body part of the fixed part; the anti-collision cover for the split type shock absorber has remarkable structural flexibility, the fixed part is connected with the shock absorber body in a close fit mode, the stability, the protection performance and the dustproof characteristic of the anti-collision cover are ensured, the movable part is connected with the fixed part through the sliding structure, free sliding along a shock absorber barrel can be achieved, and the anti-collision cover is convenient to use. By means of the design, the anti-collision cover has high adaptability in the using process and can be effectively adjusted according to changes of the working state of the vibrator. The damper is suitable for the technical field of dampers.

The present invention relates to a motor, comprising a stator and a rotor arranged in the stator, wherein the rotor comprises a rotor core and a plurality of permanent magnets, the rotor core comprises a plurality of magnetic pole units uniformly distributed around the center of the rotor core, the magnetic pole unit comprises a first slot distributed in a V-shape, a permanent magnet is arranged in the first slot, and the first slot is symmetrical about the direct axis; the magnetic pole unit comprises a groove radially recessed inward from the outer peripheral surface of the rotor core, the groove comprises two opposite first surfaces and a bottom surface connecting the two first surfaces, the first slot is located between the center and the bottom surface of the rotor core in the radial direction of the rotor core, the planes where the two first surfaces are located intersect outside the rotor core, and the angle θ of the two first surfaces satisfies 40°≤θ≤55°. The motor of the present invention has excellent performance in heat dissipation performance, torque improvement, cost control, inductance characteristics, magnetic line transmission and weak magnetic speed expansion capability, and is suitable for a wide range of fields such as electric tools, air conditioning compressors, and electric vehicles.

The utility model relates to the technical field of water conservancy construction equipment, in particular to a flow guide device for water conservancy construction, which comprises an L-shaped pipe, a garbage filtering structure is arranged in the L-shaped pipe, a corrugated pipe is fixedly mounted at one end of the L-shaped pipe, and a rotating pipe is fixedly connected to one end, far away from the L-shaped pipe, of the corrugated pipe. The flow guiding device has the advantages that the L-shaped pipe, the corrugated pipe, the rotating pipe, the U-shaped adjusting seat, the adjusting bolt, the rotating disc, the adjusting inserting hole, the rotating rod, the fixing bolt, the extending rod and the fixing inserting hole are arranged in a matched mode, the rotating pipe can be adjusted to a proper angle according to the actual situation in the using process, and therefore the direction of the water outlet of the flow guiding device can be adjusted; the flow guide device is simple in structure, water can be sprayed to a farther position, the whole flow guide device does not need to be adjusted when the water outlet of the flow guide device is adjusted, operation of adjusting the direction of the water outlet of the flow guide device is simple and convenient, and practicability and structural flexibility of adjusting the flow guide device are improved.

This application relates to the field of footwear accessories technology, and provides a cushioning insole, comprising: a fabric layer for contacting the foot; a cushioning layer disposed beneath the fabric layer, the bottom surface of which has a plurality of grooves in the arch region, the grooves providing cushioning through structural deformation when the foot is subjected to force; and a patch layer disposed on the bottom surface of the cushioning layer, the patch layer including two patches disposed in the forefoot region and the heel region respectively, the grooves being exposed between the two patches. By setting the grooves in the arch region of the bottom surface of the cushioning layer and exposing them between the front and rear patches, the insole has good structural elasticity in the arch region. When the foot strikes the ground, the grooves deform in a controllable manner, effectively absorbing and dispersing impact force. Combined with the performance of the cushioning layer itself and the support of the front and rear patches, this significantly improves the overall cushioning performance and wearing comfort of the insole.

The utility model provides an angle-opening branch stabilizing device for landscaping engineering, which comprises a positioning component, elastic clamping mechanisms are arranged on the inner walls of the two ends of the positioning component and used for elastically clamping the positioning component, sliding adjusting structures are arranged at the tops of the two ends of the positioning component, and horizontal adjusting components are arranged at the tops of the sliding adjusting structures and used for adjusting the horizontal adjusting components. The horizontal adjusting assembly is used for horizontally adjusting the garden branches, and a clamping structure is arranged on the inner wall of the horizontal adjusting assembly and used for clamping and fixing the garden branches. According to the open-angle branch stabilizing device for the landscaping engineering, the horizontal adjusting assembly is used in cooperation with the clamping structure, so that an operator can control and adjust the open angle of a branch more visually and accurately, the structure is adjusted to be parallel to the horizontal direction of the branch, applied force is evenly distributed on the surface of the branch, and the branch stabilizing effect is improved. And the fitting degree between the device and the branches is higher. In addition, the device is high in structural flexibility, and the position can be flexibly adjusted in the using process, so that the damage phenomenon to the branches is reduced.

The present invention relates to a bioassay device and method for detecting the sensitivity of the gypsy moth to Cry1Ab toxin, and relates to the technical field of gypsy moth control, comprising a test box, and the interior of the test box is equally divided into four test cavities with openings facing upward; a capping assembly arranged on the test box and a reagent tube group clamped on the capping assembly; a driving assembly arranged directly above the reagent tube group, the driving assembly comprising a rotating shaft and a pushing piece arranged on the rotating shaft, and the pushing piece slides with the tube wall of each reagent tube of the reagent tube group under the push of the rotating shaft; the capping assembly comprises a swing frame, a capping piece and a locking seat, and a rotating piece is arranged in the locking seat, and the locking seat is rotated so that one end of the rotating shaft is connected to the rotating piece, and the locking seat drives the swing frame to rotate to control the opening of the capping piece. The present invention can realize the batch determination of the sensitivity of the gypsy moth to Cry1Ab toxin, and the test flexibility is strong and the efficiency is high.

The utility model provides a modularized five-axis turntable. The modularized five-axis turntable comprises an A-axis turntable, an A-axis connecting plate and a C-axis turntable, the two ends of the A-axis connecting plate are installed on the A-axis rotary table and the C-axis rotary table respectively to form a single-arm structure. The A-axis rotary table is mounted on the small bottom plate; the five-axis rotary table further comprises a tailstock and a tailstock connecting plate. The two ends of the C-axis rotary table are installed on the A-axis connecting plate and the tailstock connecting plate respectively. And the other end of the tailstock connecting plate is mounted on the tailstock to form a cradle type structure. According to the modularized five-axis rotary table, the flexibility, the stability and the convenience of equipment are remarkably improved through optimization design, meanwhile, the use cost is reduced, and the modularized five-axis rotary table has obvious market competitiveness and technical advantages.

The utility model provides a welding integrated striker structure, which relates to the field of strikers, and comprises a traction beam upper cover plate and a traction beam lower cover plate, traction beam webs are welded on two sides between the traction beam upper cover plate and the traction beam lower cover plate, a chassis end beam is arranged on one side of the traction beam lower cover plate, and the chassis end beam is connected with a chassis. An upper partition plate is arranged at the bottom of the traction beam upper cover plate; the traction beam upper cover plate, the traction beam lower cover plate, the traction beam web and the underframe end frame are arranged to form the striker body, the upper partition plate, the impact plate, the reinforcing column, the coupler bracket, the reinforcing beam, the bottom partition plate and the U-shaped plate are arranged to form the whole striker structure, and all the structures are connected in a welded mode. The structure flexibility is improved, the cost is reduced, the small-batch production requirement is met, the economical efficiency is improved, meanwhile, key stress part connectors are cut based on the traction beam lower cover plate and the traction beam web, and the overall reliability of the structure is improved.

This utility model relates to the field of building formwork technology, specifically to a series of formwork installation structures, including a first formwork, a second formwork, and a third formwork. Each of the first, second, and third formworks has a top surface, a side surface, a cavity, a flange, and a mating surface. The mating surface has connecting holes. The first formwork has dimensions A*A, the second formwork has dimensions A*B, and the third formwork has dimensions B*B. The connecting holes on mating surfaces of the same side length of the first, second, and third formworks are positioned identically. This utility model achieves modularity, high compatibility, and easy assembly through standardized dimensions and hole design. Simultaneously, the scientific hole arrangement and size ratio optimize structural strength and layout flexibility, significantly reducing customization requirements, lowering manufacturing costs, and supporting efficient and reliable on-site installation.

The utility model relates to leech trapping equipment technical field, concretely is leech field trapping device, including upper and lower two section structure, upper and lower two section structure are respectively upper section cylinder and lower section cylinder, the side wall of lower section cylinder is provided with first filter screen, the mesh size of first filter screen is less than 0.1mm, leech can not pass first filter screen, the side wall of upper section cylinder is provided with second filter screen, the mesh size of second filter screen is greater than 5mm, and leech can freely pass second filter screen and enter the inside of upper section cylinder, the inside installation of lower section cylinder has decoy placing part. In this leech field trapping device, the targeted structure design is through, and the traditional capture pain point is solved efficiently, and the technical effect is remarkable. In the capture efficiency and selectivity, the upper and lower section cylinder cooperates different specifications filter screen, and the first filter screen of lower section only lets the decoy smell flow, and blocks leech.