42results about How to "Guaranteed normal displacement" patented technology

The invention discloses a packaging device for nano-silver paste IGBT processing, which comprises an outer bearing platform, a telescopic rod, an L-shaped fixing plate and a packaging base, a fixing platform is welded to the top of the upper end of the outer bearing platform, a pre-opening hole is formed in the inner wall of one side of the fixing platform, inner bearing platforms are distributed on the inner wall side of the outer bearing platform, the inner bearing platforms are distributed in a split manner, and the outer bearing platform is connected with the telescopic rod. A telescopic air cylinder is fastened to the upper end of the fixing table through a bolt, and a sliding rail is arranged on the outer wall of the upper end of the telescopic air cylinder. When the packaging device for nano-silver paste IGBT processing is used, the paste storage box is used for storing redundant nano-silver paste, meanwhile, the bearing platform and the outer bearing platform are designed in a split mode, the connection mode is easy to operate and convenient to use, the telescopic rod serves as a telescopic component and drives the lower pressing head to conduct telescopic operation, and the packaging device is convenient to use. And the pressing head presses the L-shaped fixing plate to perform synchronous pressing operation, so that the plurality of limiting heads perform synchronous pressing, and the requirement of performing multi-point synchronous pressing operation on the to-be-packaged semiconductor device plate body is met.

The invention provides a containment high-energy penetration assembly and a concrete containment, and the containment high-energy penetration assembly comprises: an inner pipeline; the end socket assembly is arranged on the inner pipeline; the protective sleeve is arranged on the outer side of the inner pipeline in a sleeving mode, and the end socket assembly is plugged in the middle of the protective sleeve; the inner sleeve and the outer sleeve are arranged on the outer side of the protective sleeve in a sleeving mode, one end of the inner pipeline and one end of the corresponding protective sleeve extend to the end, away from the end socket assembly, of the inner sleeve, and the other end of the inner pipeline and the other end of the corresponding protective sleeve extend to the outer sleeve; wherein the protective sleeve is connected with the inner sleeve, the end socket assembly is flexibly connected with the inner sleeve, and the outer sleeve is flexibly and hermetically connected with the protective sleeve on one side of the end socket assembly. The concrete containment high-energy penetration piece design structure provided by the invention is beneficial to crevasse assumption and design of a high-energy pipeline in a containment penetration piece area, simplifies the design of the penetration piece pipeline and a containment sleeve, and is convenient for subsequent construction, in-service inspection and other work.

The utility model relates to the technical field of tripods, and discloses a measuring tripod which comprises a machine body and three sets of frame bodies hinged to the outer side of the machine body, three sets of fixing blocks are fastened to the outer side of the machine body, the frame bodies are movably connected to the outer sides of the fixing blocks in a clamped mode, and fixing holes are formed in the left side and the right side of each fixing block. A bearing is fastened to the front side of the frame body, a threaded pipe is fastened to the middle of the bearing, a handle is fastened to the top end of the threaded pipe, and a sleeve is installed on the outer side of the threaded pipe in a screwed mode. According to the measuring tripod, through the matching of the diameters of the clamping sticks and the fixing holes, when the tripod body is stored, the clamping sticks are clamped into the fixing holes, so that the tripod body is stabilized and fixed with the fixing blocks, the tripod body is fixed in the device, the situation that the tripod body is misplaced due to shaking or collision is avoided, an operator can stably store the device, and the working efficiency is improved. And convenience is provided for work of operators, the use range of the device is widened, and the device is suitable for popularization.

The utility model relates to the field of the stepped sealing ring industry, in particular to a clamping mechanism for a stepped sealing ring. The technical problems that in the prior art, a conventional clamping mechanism is difficult to achieve convenient installation of a sealing ring, and meanwhile stable clamping of a solid or hollow stepped sealing ring is difficult to achieve through one mechanism are solved. According to the technical scheme, the clamping mechanism for the stepped sealing ring comprises a bearing assembly, a limiting assembly, an outer clamping assembly, a jacking assembly, a pressing assembly and an inner clamping assembly. The outer clamping assembly is arranged at the upper end of the bearing assembly, so that the outer part of the solid step sealing ring can be clamped, the inner clamping assembly is arranged at the lower end of the bearing assembly, so that the inner part of the hollow step sealing ring can be clamped, and the inner part of the hollow step sealing ring can be clamped through the jacking assembly and the pressing assembly. The stepped sealing ring can be stably clamped, meanwhile, the sealing ring can be conveniently installed in a corresponding hole, and the problem is solved.

The invention discloses an adjustable main buckling integrated type section steel tower cable wind connecting structure and a construction method thereof. The cable wind connecting structure comprises a tower side cable wind buckling and hanging connecting structure, a tower waist cable wind hanging connecting structure and a tower top cable wind connecting structure, and corresponding cable wind ropes, tensioning end universal joints and cable wind ground anchors matched with the cable wind connecting structure, the tower waist cable wind hanging connecting structure and the tower top cable wind connecting structure. The construction method comprises the following construction steps: step 1, calculating the stress of the section steel tower wind cable system; 2, a tower mooring rope anchoring device and a tensioning end are installed before the tower is installed; 3, a tower wind cable system is installed in the tower installation process; 4, the tower wind cable system is tensioned step by step; and 5, in the tower dismantling process, the wind cable system is released, pulled and dismantled step by step. The structure of the technology has the advantages of being simple in structure, safe, reliable, clear in stress, small in steel consumption and capable of adjusting the angle of the cable rope, meanwhile, the method is convenient to assemble and disassemble and high in construction efficiency, it can be guaranteed that the displacement of the section steel tower is within the allowable range when the section steel tower works, and the construction safety risk of tower cable hoisting and cable-stayed buckling operation is reduced.

The utility model relates to the technical field of agricultural planting, and discloses an agricultural spraying device in agricultural planting, which comprises a machine body and a water tank arranged at the top of the machine body, two groups of fixing columns are fastened at the top of the machine body, connecting rods are rotatably connected in the fixing columns, and mounting discs are fastened at the top ends of the connecting rods. And a spray head communicating with the water tank is arranged at the top of the mounting disc, a gear is fastened to the outer side of the connecting rod, and a bidirectional motor and two sets of center shafts are fastened to the top of the machine body. According to the agricultural spraying device in agricultural planting, through cooperation of a swing plate and a transverse plate, when the swing plate pushes the transverse plate, a rack drives a spray head to rotate in a manner of pushing a gear to rotate, so that the spraying range of the spray head is changed, and the spray head can spray soil in different ranges; the spraying range of the device is increased, and the device is easy to operate and provides convenience for work of operators.

The utility model relates to the technical field of forestry planning, and discloses a measuring ground-pricking marker post which comprises a base and a post body fastened at the top of the base, transverse plates are fastened on the left side and the right side of the base respectively, two sets of sliding blocks are connected in the transverse plates in a sliding mode, and limiting rods are fastened on the front side and the rear side of each transverse plate respectively. A movable block is fastened to the left side of the sliding block, the movable block is slidably connected to the outer side of the limiting rod, and fixing rods are fastened to the bottom of the transverse plate and the bottom of the sliding block. According to the ground pricking measuring marker post, through cooperation between the swing plate and the fixed plate, when the swing plate pushes the fixed plate to move, the sliding block can drive the fixed rods to move, so that the multiple sets of fixed rods can be located at different positions, and after the fixed rods are inserted into the ground, the device can be firmly fixed to the current position; and the overall stability of the device is improved, the problems that the rod body is not straight and unstable in fixation are prevented, and normal use of the device is guaranteed.

The utility model relates to the technical field of steel structure machining, in particular to a steel structure welding device for housing construction, which comprises an operation table, a left base is welded on the surface of the operation table, a right base is arranged on the opposite side of the left base, and the right base is slidably connected to the surface of the operation table through a movable base arranged on the rear wall of the right base. And a servo motor is mounted on the rear wall of the left base through a bolt. According to the improved steel structure welding device for housing construction, one end of the right base is driven through the rotating base on the surface of the left base, overturning operation is completed in the welding process, manual overturning is avoided, and steel structure elements are fixed under various adjusting structures of the height and the width in the limiting assembly; the problem of displacement in the welding process is effectively solved, the welding quality is effectively guaranteed, the right base is of a movable structure through transmission of a gear and a rack, limitation of specifications of steel parts in the machining process is avoided, and beneficial conditions in the maximum range are provided for the welding technology of the steel structure.

The present invention relates to the technical field of medical robot mechanical arms, and in particular to a pitch mechanical arm for a medical robot, wherein the first and last ends of a driving arm are respectively hinged with the end and the first end of a moving and fixed arm through a hinge assembly; a main driving assembly and a first crank-connecting rod mechanism are installed in the fixed arm, and the main driving assembly drives the first crank-connecting rod mechanism to rotate the driving arm relative to the fixed arm; a second crank-connecting rod mechanism is arranged in the driving arm, and the driving arm rotates and drives the second crank-connecting rod mechanism to rotate the driven arm relative to the driving arm, so that the moving and fixed arms are always kept parallel; the driven arm rotates and drives the third crank-connecting rod mechanism arranged in the driven arm to work, and the third crank-connecting rod mechanism drives the auxiliary driving assembly arranged at the head end of the driven arm to work synchronously. The present invention has a high degree of stability and can effectively ensure the safety of medical surgical operations.

The utility model relates to the field of drainage, in particular to a roof drainage floor drain anti-blocking device which comprises a water collecting pipe, a flexible annular blocking net and an impeller. A cap-shaped bracket is arranged at the top of the water collecting pipe and is arranged at the top of the water collecting pipe; the flexible annular baffle net is arranged on the inner side of the cap-shaped bracket; the impeller is arranged in the water collecting pipe, a wheel shaft is fixed to the top of the impeller and rotationally connected to the top plate, a connecting disc is fixed to the wheel shaft, a plurality of extending rods are annularly arranged on the periphery of the connecting disc, and balls are fixed to the outer ends of the extending rods and make contact with the flexible annular blocking net. Rainwater washes the impeller to drive the ball to continuously push the flexible annular baffle net outwards, so that sundries attached to the outer side of the flexible annular baffle net fall off, gaps among the sundries are enlarged, the water discharge amount of the floor drain is guaranteed, and the floor drain is prevented from being blocked.

According to the adjustable large plastic uptake production line positioning technology, material conveying rows are arranged among a heating part taking and plastic uptake mold assembly, a discharging and cutting assembly and a finished product discharging table in a penetrating mode, the material conveying rows are double-row mirror image type independent material conveying rows, and a plurality of material row supporting assemblies are arranged on the outer sides of the material conveying rows; the material row supporting assembly is longitudinally arranged between the double-row material conveying rows, through the adjustable raw material conveying rows and the discharging and cutting assembly, adjustment can be conveniently carried out according to the size of a blister part needing to be produced, different widths of various raw material rollers and different finished product distances after blister are completed are adapted, and the production efficiency is improved. And it is guaranteed that the discharging and cutting assembly can be matched with the displacement amount of a blister finished product, so that the complete blister production process can be matched with various blister parts of different sizes, adjustment is convenient, the degree of freedom is high, and the blister production process can be matched with various forms.

The utility model provides a chain guide of a loop chain elevator, and belongs to the technical field of loop chain elevators. The technical problem that an existing chain guide vibrates is solved. The chain guide of the loop chain elevator comprises an integrally-formed chain guide body, the chain guide body comprises a round part and a square part, the width of the square part is larger than that of the round part, and a mounting hole and a chain guide channel are formed in the chain guide body. The guide chain channel comprises an arc channel, a first inlet-outlet channel and a second inlet-outlet channel, the first inlet-outlet channel and the second inlet-outlet channel are in smooth direct connection with the two ends of the arc channel, the mounting hole and the arc channel are located in the circular part and are coaxially arranged, and the first inlet-outlet channel and the second inlet-outlet channel are located in the square part. The positioning cylinder is arranged on the upper portion of the mounting hole, a guide protruding block protrudes from the lower end, located on the first inlet-outlet channel, of the square part, and a chain wheel is arranged in the mounting hole. The chain guide has the advantage of being capable of reducing vibration and abrasion of the chain guide.

The utility model discloses a double-cabin noise reduction device which comprises a shell, a top cover and a partition plate assembly arranged in the shell, the partition plate assembly is matched with the top of a pot cover to form a first noise reduction cabin, and a second noise reduction cabin which is located above the first noise reduction cabin and communicated with the first noise reduction cabin is further arranged in the shell. The top cover is arranged at the top of the shell, an assembly gap is formed between the top cover and the shell, and the assembly gap communicates with the second noise reduction cabin to form an exhaust gap, so that airflow sequentially flows through the first noise reduction cabin and the second noise reduction cabin to be exhausted from the exhaust gap. According to the noise reduction device, the top cover of the noise reduction device is arranged at the top of the shell, and the exhaust gap is formed between the top cover and the shell through assembly, so that airflow in the noise reduction device is exhausted through the exhaust gap. Therefore, a hole does not need to be formed in the top cover or the shell of the noise reduction device, the hidden design of the exhaust port is achieved, the exhaust efficiency is guaranteed, a user cannot see the internal structure of the noise reduction device from the outer side, and the appearance quality of the cooking utensil is improved.

The utility model relates to the technical field of dust collectors, and discloses a novel portable brushless dust collector which comprises a machine body and a base fixedly arranged at the bottom of the machine body, four sets of universal wheels are arranged at the bottom of the base, two sets of moving grooves are formed in the left side and the right side of the base respectively, and sliding blocks are connected into the moving grooves in a sliding mode. The left sides of the two sets of sliding blocks are fastened to a transverse plate on the outer side of the base. According to the novel portable brushless dust collector, through the cooperation between the top rod and the supporting plate, the transverse plate is driven to move by pushing the supporting plate when the top rod moves, the transverse plate moves to drive the supporting legs to move downwards and make contact with the ground, the supporting legs make contact with the ground to support the dust collector, and at the moment, the dust collector can be stably fixed to the current position; and the situation that the device is prone to displacement during use is avoided, normal use of the device is guaranteed, potential safety hazards are avoided, and the device is suitable for popularization.

The invention relates to the field of multiphase flow meters, and particularly discloses a high-precision gas-liquid multiphase flow meter which comprises a gas-liquid cyclone separator, a gas outlet formed in the upper end of the gas-liquid cyclone separator, a liquid outlet formed in the bottom of the gas-liquid cyclone separator and an inlet formed in one side of the gas-liquid cyclone separator. A pressurizing mechanism is arranged on the inner side of the gas-liquid cyclone separator and comprises a first fixing frame fixedly arranged on the inner wall of the gas outlet and the inner wall of the liquid outlet. According to the high-precision gas-liquid multiphase flow meter, through the pressurization mechanism arranged in the gas-liquid cyclone separator, gas and liquid to be discharged can be pressurized after gas-liquid separation, so that the gas and the liquid can be rapidly discharged, the gas-liquid separation and metering efficiency is improved, and the gas-liquid separation and metering efficiency is improved; and moreover, liquid drops carried by gas due to overlong retention time in the gas-liquid cyclone separator can be reduced.

The utility model relates to the technical field of bamboo product processing, in particular to an anti-loosening shaping device which comprises an upper disc, a first hydraulic cylinder is installed on the top of the upper disc, a lower disc is arranged below the upper disc, and the bottom of the lower disc is connected with the output end of a low-speed motor through an installation frame. The lower disc is rotationally connected to the surface of the operation table through a low-speed motor, a bracket installed on the surface of the operation table is connected to the bottom of the lower disc in an attached mode, a side disc is arranged on the surface of the lower disc, and a second hydraulic cylinder is installed on one side of the outer wall of the side disc. According to the improved anti-loosening shaping device, the side discs can be attached to the outer wall of a raw material in an opening and closing mode and are not limited by the specification of a machined product, glue activates bamboo strips to be heated and softened in a hot-pressing mode, the bonding aging between the bamboo strips and the glue is accelerated, and then the working efficiency is improved; and the problem that displacement is generated during glue coating is solved.

The utility model relates to the technical field of wire cutting equipment, in particular to double-stand-column multi-wire cutting equipment. The double-stand-column multi-wire cutting equipment aims at solving the problem that when a left motor and a right motor are not synchronous in operation, the connecting point between the left support and the right support is large in stress and prone to being damaged due to the fact that an existing large-scale cutting machine is connected through the left support and the right support at present. Comprising an equipment body, a roller support, a lifting mechanism, a take-up assembly, a pay-off assembly and a guide wheel assembly, the equipment body comprises two stand columns and an upper cross beam, the roller support is arranged between the two stand columns, the lifting mechanism is arranged on the two stand columns in a mirror image mode, and the roller support comprises an upper roller support and a lower roller support. According to the scheme, the roller support is of an up-and-down split structure, a whole is formed through the wedge blocks, compared with a left-and-right split structure connected through a connecting plate, the up-and-down structure is better in integrity and parallelism, smooth cutting and precision can be guaranteed, deformation and displacement are not prone to occurring, and precision is guaranteed.

The utility model relates to the technical field of vegetable planting, and discloses a soilless culture vegetable planting device which comprises a machine body, a cavity formed in the machine body, two sets of containing boxes rotationally connected to the interior of the cavity and a base fastened to the bottom of the machine body. The center shaft is rotationally connected into the machine body, two sets of grooves are formed in the machine body, and a gear is fastened to the outer side of the center shaft. According to the soilless culture vegetable planting device, through cooperation between pulleys and convex blocks, when the pulleys move, racks are jacked to move in a manner of jacking the convex blocks, and the racks move to drive placing boxes to rotate in a manner of jacking gears, so that the placing boxes drive vegetables in the placing boxes to incline; the vegetables in the placing box are not shielded any more and can receive sufficient illumination, and the situation that the illumination effect of the vegetables in local positions is not uniform and insufficient is prevented.

The utility model discloses a pipe production offline quality detection device, which belongs to the technical field of pipe detection and comprises an equipment bottom plate, a pair of hexagonal mounting frames are arranged on one side of the top of the equipment bottom plate, and adjustable limiting components are arranged on the two hexagonal mounting frames in a circumferential array manner. Fixing seats distributed in a circumferential array mode are installed between the two hexagonal installation frames, visual cameras are fixedly installed on the fixing seats, the bottoms of the two hexagonal installation frames are each fixedly connected with a pair of supporting rods, and one end of each supporting rod is fixed to the top of the equipment bottom plate. A lifting bearing assembly is connected to the position, located on one side of the hexagonal mounting frame, of the top of the equipment bottom plate, a to-be-detected pipe is arranged on the lifting bearing assembly, and one end of the to-be-detected pipe is arranged in the adjustable limiting assembly in a penetrating mode. And meanwhile, the pipes with different diameters can be conveyed in a limited mode, and practicability is high.

The invention discloses a self-adaptive reverse clearance active boundary control method for a marine flexible riser, and relates to the field of marine oil and gas development, and the method comprises the following steps: obtaining a control equation of a marine flexible riser system, and determining boundary conditions of the marine flexible riser system; updating boundary conditions; a barrier Lyapunov function is constructed; proposing a designed expected vibration control strategy, and designing an adaptive law based on the expected vibration control strategy; verifying that the system stability is bounded based on a barrier Lyapunov function; and acquiring the actual vibration offset of the marine flexible riser system, substituting the actual vibration offset into the adaptive law to obtain actual control output, and applying a control acting force to the top end of the marine flexible riser. The method is used for solving the problem that in the prior art, input nonlinearity caused by an input gap cannot be overcome in the control process of the marine flexible riser, the defect of an unknown input gap is overcome, and the purpose of compensating the input nonlinearity through a self-adaptive reverse gap algorithm is achieved.

According to the full-automatic large feeding and discharging plastic suction machine, a heating machine, a plastic suction pressing machine and a cutting machine are all connected in series through a conveyor, a feeding roller is arranged at the outer end of the heating machine, a discharging table is arranged at the outer end of the cutting machine, the two ends of the conveyor are connected with the feeding roller and the discharging roller through automatic extending material plates respectively, and the feeding roller and the discharging roller are arranged on the conveying machine. A discharging pressing machine is arranged above the rear end of the discharging table, a stacking machine is arranged above the front end of the discharging table, automatic production of the whole plastic vacuum forming machine is achieved in a full-automatic mode regardless of feeding, discharging and piece arranging, the automatic extending material plate is arranged, and the automatic production efficiency is improved. According to the blister packaging machine, automatic feeding and unwinding and discharging and winding can be conveniently and directly achieved during feeding and discharging, a discharging pressing machine and a stacking machine are further arranged on the discharging table, and therefore blister finished products can be completely separated from a conveying belt and finally stacked, personnel operation is reduced to the maximum extent, and the production efficiency is improved. And large-scale high-efficiency automatic blister production is realized.

The invention relates to a vibration energy collector for power supply of an electric toothbrush, comprising a vibration beam (1) and a vibration amplification device, the vibration beam (1) is an arched iron sheet with MFC sheet (2) pasted on the inner side of several concaves, the vibration amplification device comprises an iron ball (3) and a spring (4). Compared with the prior art, the invention has the advantages of high system output power, long service life, stable work and the like.

The invention relates to the field of multi-wire cutting machines, and provides a multi-wire cutting machine with a safety protection function, the multi-wire cutting machine comprises a rack, a multi-wire cutting unit and lifting devices, and the two sides of the multi-wire cutting unit are connected with the rack through the lifting devices; the lifting device comprises a lead screw, a first driving assembly, a main nut, an auxiliary nut, a connecting piece and a displacement detection assembly. The main nut and the auxiliary nut are both in threaded connection with the lead screw, the pitch of the auxiliary nut is larger than that of the main nut, and the main nut is connected with the rack. A gap is reserved between the main nut and the auxiliary nut, one end of the connecting piece is fixedly connected with the main nut, and the other end of the connecting piece is movably connected with the auxiliary nut. The displacement detection assembly is arranged between the main nut and the auxiliary nut. The first driving assembly is arranged on the rack and connected with one end of the lead screw. The multi-wire cutting unit has the advantages that the main nut can be replaced in time according to the detected displacement, so that the multi-wire cutting unit can be prevented from falling off due to excessive abrasion of the main nut, and the use safety can be greatly improved.

The invention provides an anti-backflow intercepting system and a control method, and relates to the technical field of city pipe discharge. The method comprises the following steps: firstly, carrying out single-intercepting-well strategy regulation and control through environmental parameters of each intercepting well, and determining a single-strategy state of each intercepting well; afterwards, on the basis of the environmental parameters and the current state of each intercepting well and the single-strategy state of each intercepting well, state compounding is carried out on each intercepting well, and the compound regulation and control state of each intercepting well is determined, so that regulation and control of each intercepting well meet the requirements of environmental parameter changes of each intercepting well; and the requirements of water discharge and stability among a plurality of catch basins are met. Compared with a manual regulation and control operation mode, rapid response of the urban intercepting system is achieved, the accuracy of intercepting well control is guaranteed, the intelligent degree of the intercepting system is improved, and urban drainage is prevented from flowing backwards.

The compressor capable of improving the energy efficiency ratio comprises a compressor shell and a compressor body installed in the compressor shell, the compressor body is located on one side of the compressor shell, an oil storage cavity is formed in the other side of the compressor shell, the upper portion of the oil storage cavity is communicated with an exhaust pipe, and the exhaust pipe penetrates through the compressor shell upwards; the lower end of the piston extends into the oil storage chamber and is close to the exhaust end of the compressor body; a buffer oil baffle chamber is arranged at the part, positioned in the oil storage chamber, of the exhaust pipe; the lower end of the exhaust pipe is provided with a trumpet-shaped outer edge part, a flow guide oil baffle plate is arranged at one end, with a larger trumpet opening, of the outer edge part, the flow guide oil baffle plate is arranged over against the exhaust end of the compressor body, and the flow guide oil baffle plate and the exhaust end of the compressor body are respectively arranged on two opposite sides of the lower end of the exhaust pipe. The possibility of oil shortage of the compressor is reduced by reducing the refrigerant oil carried by the refrigerant, so that the operation efficiency of the compressor is improved to a certain extent, and the energy efficiency ratio of the compressor is further improved.

The utility model relates to the technical field of clamps, and discloses an automobile D column inner plate left sub-assembly welding clamp which comprises a machine body and a clamping structure connected to the top of the machine body in a sliding mode, a sliding groove is formed in the machine body, and the bottom of the clamping structure is fastened with a sliding block connected to the interior of the sliding groove in a sliding mode. And a groove communicating with the sliding groove is formed in the machine body, the bottom of the sliding block is fastened to a moving block slidably connected into the groove, and a fixing shaft is fastened to the inner wall of the groove. According to the D-column inner plate left sub-assembly welding clamp for the automobile, through cooperation between a top roller and a connecting rope, when the top roller jacks the connecting rope, one end of the connecting rope drives a sliding block and a clamping structure to move by dragging a moving block to move, and therefore the position of an inner plate assembly on the clamping structure can be conveniently adjusted; and welding work of different positions of the inner plate is facilitated, convenience is brought to work of operators, and the device is suitable for popularization.

The utility model relates to the technical field of hydraulic engineering equipment, and discloses a small hydraulic engineering gate which comprises a gate body and a gate plate arranged in the gate body, two sets of filter screens are movably clamped in the gate body, two sets of grooves are formed in the front side and the rear side of the gate body respectively, clamping blocks are fastened to the left side and the right side of each filter screen, and the gate plate is arranged in the gate body. The clamping blocks are slidably connected into the grooves, two movable grooves are formed in the door body and communicate with the grooves, and transverse plates are slidably connected into the movable grooves. According to the small water conservancy gate, through cooperation of the baffle and the clamping block, the filter screen can be stably installed in the gate body when the baffle blocks the clamping block, and when the baffle moves back and does not block the clamping block any more, an operator can conveniently detach the filter screen to clean or replace the filter screen, so that the operator can conveniently clean or replace the filter screen; the working efficiency is improved, the application range of the device is widened, and the device is suitable for popularization.

The utility model relates to the technical field of magnetic force detection, and discloses a magnet magnetic force detection device, which comprises a machine body and a fixed block fastened at the top of the machine body, electric push rods are fixedly arranged on the left side and the right side of the fixed block, and the output ends of the electric push rods are in key connection with a connecting frame. The left side of the connecting frame extends into the fixing block and is fastened with the sliding blocks, the outer sides of the two sets of sliding blocks are slidably connected with two sets of testing blocks, and the tops of the testing blocks are fastened with a supporting plate slidably connected to the top of the fixing block. According to the magnet magnetic force detection device, through cooperation between the pulley and the convex block, the convex block is pushed to move when the pulley moves, and the displacement of the convex block drives the test block to move through the supporting plate, so that the test position of the magnet can be changed by changing the position of the test block; therefore, the device can be used for testing different positions of the magnet, the application range of the device is widened, and convenience is brought to work of operators.