95results about How to "Avoid force deformation" patented technology

The invention relates to the field of sampling, in particular to a drilling and sampling device for road construction. The sampler comprises a frame and a sampling assembly arranged on the frame, the sampling assembly comprises a drilling cylinder and an inner cylinder, a plurality of drilling tools are hinged to the lower end of the drilling cylinder, the inner cylinder is coaxially inserted into the drilling cylinder, the inner cylinder is of a grating structure and comprises a first cylinder body and a second cylinder body, and a film is arranged in the inner cylinder. When a road surface part is drilled, the drilling tool is in a horizontal state, the contact area between the drilling tool and the road surface is large, large cutting supporting force can be kept, a drilling barrel is prevented from being stressed and deformed, when a roadbed part is drilled, the drilling tool is in an upright state, the contact area between the drilling tool and the roadbed is small, the cutting speed is increased, and the cutting efficiency is improved, so that different drilling requirements are met; meanwhile, when the roadbed part is cut, the inner cylinder is inserted into the roadbed in advance to support the roadbed, after drilling is finished, the thin film is pulled open to wrap the sample core, it is guaranteed that the distribution state of all layers of structures of the sample core is accurate, and the authenticity of the sample is guaranteed.

The invention provides an adjusting mechanism and semiconductor process equipment, and the adjusting mechanism comprises a mounting flange which is fixedly disposed in a reaction chamber; the movable flange is arranged on the mounting flange and is connected with the gas spraying head; the locking piece is connected with the mounting flange and the movable flange and can realize locking and unlocking between the mounting flange and the movable flange; the adjusting part is movably connected with the mounting flange and the movable flange and is used for adjusting the position of the movable flange relative to the mounting flange; one of the locking piece and the adjusting piece is of a hollow structure, and the other one of the locking piece and the adjusting piece is sleeved with the locking piece and the adjusting piece. According to the adjusting mechanism, as the locking piece is used for locking the gas spraying head, fluctuation of the distance and the levelness between the gas spraying head and the silicon wafer is avoided, and the adjusting piece and the locking piece which are arranged in a sleeved mode can balance stress of the movable flange and the installation flange so as to eliminate bending moment and avoid stress deformation.

The invention provides automatic punching equipment for cooling fins, and relates to the technical field of punching equipment.The automatic punching equipment comprises a punching machine, a die frame and a punching die, a motor used for driving the die frame to rotate is fixedly installed in the punching machine, a die outlet is formed in a punching table top of the punching machine, and cavities are formed in the two sides of the die outlet; the multiple punching dies are annularly arranged on the die frame, a first limiting groove is formed in the rear side wall in the punching machine, a second limiting groove is formed in the front side wall in the punching machine, and the dustproof assembly is installed in the punching machine and used for preventing dust during shutdown; by means of the technical scheme, the purpose of die internal line switching of stamping equipment is achieved, the integral die mode is adopted, the problem of stress of a shaft rod of the die frame is solved through linkage of the bearing assemblies, the dustproof assembly and the die frame, and the die frame is convenient to use and high in practicability. Meanwhile, the dustproof function is achieved.

The invention discloses a winding body of a high-voltage winding, and the winding body comprises a plurality of winding plates which are distributed along the circumferential direction of the winding body, the length directions of the plurality of winding plates are arranged along the axial direction of the winding body, and the winding plates are provided with a plurality of winding grooves, so that the winding plates form a plurality of comb teeth; the auxiliary parts are annular and are arranged at intervals in the axial direction of the winding body, and the winding plates are fixedly arranged on the inner peripheries of the auxiliary parts. The invention further discloses the high-voltage winding. The winding plates are fixed to the inner periphery of the auxiliary part, all the winding plates can be tightened to the theoretical position through the tension force of wire winding, labor is greatly saved, and the assembling efficiency is improved.

The present invention discloses a lifting and positioning device and an assembly method for a special-shaped thick-walled stainless steel head, wherein the lifting and positioning device comprises a hanger, a cushion block assembly and an adjustable pull rod; the lifting and positioning device of the present invention can prevent the flange surface of the head from being deformed by force and can achieve the purpose of adjusting the horizontality of the head during the lifting and lifting process; the head assembly method of the present invention can make the horizontality of the head and the coaxiality of the head and the lower supporting plate meet the requirements by adopting the lifting and positioning device and the guide member, thereby improving the assembly efficiency and assembly accuracy.

The utility model discloses an adjustable saddle tool of a reaction kettle, which belongs to the technical field of tool equipment and comprises a base, two groups of support components are arranged on the base, and a support space is formed between the two groups of support components; the base comprises an adjustable connecting plate, and a plurality of first adjusting holes are formed in the adjustable connecting plate; each supporting assembly comprises a plurality of adjusting supporting mechanisms, and each adjusting supporting mechanism comprises an upper connecting plate, a lower connecting plate and a reaction kettle supporting plate; the reaction kettle supporting plate is provided with an arc-shaped supporting face facing the supporting space, the upper connecting plate is located on the upper side of the lower connecting plate and connected with the reaction kettle supporting plate, the upper connecting plate is provided with a second adjusting hole, the lower connecting plate is provided with a connecting hole, and the connecting hole corresponds to the first adjusting hole and the second adjusting hole in position; the adjusting supporting mechanisms in the same supporting assembly are overlapped up and down and are adjustably connected, and the lowest adjusting supporting mechanism is adjustably connected with the adjustable connecting plate so as to adapt to the reaction kettles with different diameters.

The laser cutting machine beam comprises a body and a base, the body comprises an outer wall, a circular ring is arranged in the center of the outer wall, the circular ring is hollow and extends to the two ends communicated with the outer wall in the axial direction of the body, the beam is provided with a guide rail and a rack, and the outer wall is provided with a guide rail groove matched with the guide rail and a rack groove matched with the rack; reinforcing ribs are arranged between the circular ring and the outer wall, and projections of the reinforcing ribs in the radial direction of the circular ring fall into the guide rail groove and / or the rack groove. Through the internally hollow circular ring, on one hand, the overall weight of the cross beam is reduced, on the other hand, the circular ring in the center of the main body can enhance the internal structural strength of the main body, through arrangement of the reinforcing ribs, the overall structural strength of the cross beam is improved, and the projections of the reinforcing ribs in the radial direction of the circular ring fall into the guide rail groove and / or the rack groove to share stress from the rack and the guide rail; the supporting stability of the cross beam in the moving process of the laser head is enhanced, and the good cutting precision of the laser cutting machine during high-speed operation is met.

The utility model discloses a leaky bucket for cleaning vegetables and fruits. The leaky bucket comprises a bucket body, a handle and a fixing piece, a first reinforcing rib is arranged on the opening edge of the bucket body, a second reinforcing rib is arranged below the first reinforcing rib, handle inserting grooves are integrally connected to the positions, located on the two sides of the bucket body, of the second reinforcing rib, handle inserting holes are formed in the middles of the handle inserting grooves, and the handle inserting holes comprise limiting inserting holes and embedding inserting holes. A mounting hole is formed in the bottom of the handle slot; the lifting handle comprises a lifting part and end buckling parts located at the two ends of the lifting part, the end buckling parts can be inserted into the lifting handle insertion holes, the fixing piece is provided with an embedded protrusion matched with the embedded insertion hole, and therefore when the fixing piece can be inserted into the lifting handle insertion groove through the installation hole, the fixing piece can be inserted into the lifting handle insertion groove. The embedded protrusions can be clamped into the embedded insertion holes so that the upper edges of the embedded protrusions can be matched with the limiting insertion holes and limit the end buckling parts. The bucket has the advantages that the bucket body is high in structural strength and not prone to deformation, and the handle and the bucket body are connected and not prone to falling off.

The utility model discloses an assembly type steel structure beam column connecting piece which comprises a fixing base, the fixing base is connected with a stand column through a plurality of connecting bolts, an upper cover plate is arranged at the upper end of the fixing base, a lower cover plate is arranged at the lower end of the fixing base, a screw rod is rotationally connected between the upper cover plate and the lower cover plate, and a sliding base is connected into the fixing base in a sliding mode. One side of the sliding seat is in threaded connection with the screw rod; a connecting base is arranged on one side of the fixing base and comprises two sets of symmetrically-arranged connecting plates, a clamping groove is formed between the two sets of connecting plates, a web of the cross beam is placed in the clamping groove, a plurality of first connecting holes corresponding in position and size are formed in the connecting plates and the cross beam, and the cross beam is connected with the connecting plates through connecting bolts. The height deviation of the connecting pieces on the two stand columns is compensated through movement of the sliding seats, it is ensured that connection between the cross beam and the stand columns can reach the accurate position required by design, the problem of stress concentration caused by connection deviation is effectively avoided, and the reliability and stability of connecting nodes are improved.

The utility model relates to the technical field of water heaters, in particular to a water tank device and a water heater, the water tank device comprises a tank body, a supporting assembly and a limiting assembly, the supporting assembly is fixedly arranged on a wall body, and the supporting assembly is used for supporting the bottom of the tank body; according to the water tank device, the limiting assembly is fixedly arranged on the wall, the limiting assembly is connected with one side of the tank body and used for limiting the tank body in the direction perpendicular to the wall, the situation that the tank body deforms due to shearing force can be effectively avoided, and the service life of the water heater is guaranteed.

The application belongs to the technical field of intelligent wheelchair and discloses a wheelchair integrated double-arm old-age assisting robot, which comprises a wheelchair body, a load-bearing mounting frame, a mechanical arm assembly and a visual perception assembly; the wheelchair body comprises a seat, a chassis load-bearing crossbeam and a handle, the chassis load-bearing crossbeam is arranged below the seat and is in an integrated structure with the handle; the load-bearing mounting frame is a symmetrical U-shaped frame with an opening upward, comprising a fixed base, vertical load-bearing column groups and a top bearing platform, the fixed base is located between the seat and the chassis load-bearing crossbeam and is rigidly connected with the chassis load-bearing crossbeam, two vertical load-bearing column groups are respectively fixed above both sides of the fixed base, the top bearing platform is arranged on the vertical load-bearing column groups and is used for mounting the mechanical arm assembly; the visual perception assembly is used for acquiring visual information of the overall environment and the operation area. The application can solve the problems of insufficient structural strength, large power supply interference and limited visual perception capacity in the existing wheelchair mechanical arm system.

The invention discloses a thin-wall aluminum shell machining device and method.The machining device is characterized in that the fixed end of a floating positioning disc is connected with a lathe rotating spindle, the floating end of the floating positioning disc is provided with a limiting groove matched with a workpiece, a sliding positioning disc comprises a sliding part and a rotating part, and the sliding part is slidably connected to a lathe rail; and the rotating part is of an annular structure coaxial with the rotating main shaft, the rotating part is rotationally connected to the sliding part, an extrusion part is arranged at one end of the rotating part, and the extrusion part is used for being matched with the limiting groove to fix the workpiece and extrude and position the floating end. The axis of the workpiece is coaxial with the axis of the lathe rotating shaft, the workpiece is positioned and supported by matching with the limiting groove formed along with the shape, the thin-wall workpiece is prevented from being stressed and deformed in the machining process, and meanwhile, compared with a machining center, machining of peripheral grooves, inner holes and the like is faster, and secondary positioning is not needed.

The utility model relates to electronic product assembly technical field discloses a kind of electrically-conductive parts mounting equipment, comprising: bearing, including insertion section and exposed section, insertion section is connected with exposed section and is equipped with via, bearing is equipped with cavity and bearing surface, bearing surface is at least partially located insertion section, for bearing electrically-conductive parts, via is through bearing surface, cavity is communicated with via and is through the surface of exposed section;Limit protrusion, be located at the outer circumferential surface of exposed section;Jacking part, insert in cavity, and from exposed section, jacking part has jacking protrusion, jacking protrusion is movably inserted in via.The electrically-conductive parts mounting equipment of the utility model has the advantages of simple operation, electrically-conductive parts is not easy to deviate, yield and production efficiency is high.

The utility model belongs to the technical field of laser processing, and relates to a laser cutting machine tool. The laser cutting machine tool comprises a tool body and a dust extraction system, the tool body comprises an inner supporting plate, an outer supporting plate and a bottom plate, the outer supporting plate is fixed to the bottom plate, reinforcing ribs are arranged between the inner supporting plate and the outer supporting plate, the inner supporting plate and the outer supporting plate are fixedly connected with the reinforcing ribs respectively, and the dust extraction system is installed on the tool body and comprises a dust extraction pipeline. A part of the dust suction pipeline is embedded into the bed body, the top face of the dust suction pipeline is fixedly connected with the inner supporting plate, one side face of the dust suction pipeline is fixedly connected with the reinforcing ribs, and the side face, away from the reinforcing ribs, of the dust suction pipeline is provided with a suction opening and protrudes out of the inner supporting plate. According to the technical scheme provided by the invention, the laser cutting machine tool can have higher dust extraction efficiency.

The utility model discloses a straight-through type cable management rack and a cabinet, the cable management rack comprises a cable management rack body, the interior of the cable management rack body is provided with a plurality of through cable passing channels, the front end of the cable management rack body is provided with a metal panel, the metal panel is provided with a plurality of openings for cables to pass through, and the openings are communicated with the cable passing channels. A plurality of detachable threading frames are arranged at the rear end of the wire arrangement frame body; limiting parts are arranged on the two sides of the wire arrangement frame body. Limiting clamping plates matched with the limiting parts are arranged on the two sides of the metal panel, and the limiting clamping plates can be embedded into the limiting parts and are fixed through fixing pieces. A plurality of threading channels penetrating through the threading frame in the length direction of the threading frame are formed in the threading frame, and the threading channels of the threading frame are correspondingly communicated with the wire passing channels of the wire arranging frame body. The straight-through type wire arrangement frame can greatly facilitate arrangement of network cables, not only improves attractiveness, but also is high in practicability and long in service life.

The utility model relates to the technical field of gate valve discloses a kind of isolation gate valves for nuclear power, comprising: valve body, valve stem, gate structure and hydraulic structure, and flow-through passage is opened in valve body, and flow-through passage includes liquid inlet passage, middle cavity and liquid outlet passage;Valve stem is installed in valve body;Gate structure is installed on valve stem, and valve stem drives gate structure to lift to connect or cut off liquid inlet passage and liquid outlet passage;Pressure relief structure is communicated with liquid inlet passage, middle cavity and liquid outlet passage, and pressure relief structure is used to make middle cavity and liquid inlet passage or liquid outlet passage side with higher pressure communicate, to balance middle cavity pressure. When gate valve needs to be from cut-off medium flow-through state, lift gate structure becomes the process of realizing medium flow-through state, and middle cavity pressure abnormally rises, at this time, pressure relief structure is self-started, high-pressure medium can flow into liquid inlet passage or liquid outlet passage by pressure relief structure, and pressure is automatically balanced, reduce the risk of valve damage.

The application provides a supporting structure for landslide emergency treatment and a use method, and belongs to the technical field of landslide emergency treatment. The supporting structure comprises an anchor rod, a connecting mechanism is arranged on the anchor rod, the connecting mechanism comprises hollowed-out discs one, two and three which are fixedly sleeved on the anchor rod, the diameters of the hollowed-out discs one, two and three are sequentially reduced, a plurality of connecting rings are fixedly sleeved on the anchor rod, and grooves are arranged on the anchor rod corresponding to the connecting rings. The hollowed-out discs one, two and three and the connecting rings are fixedly sleeved on the anchor rod, the contact area of the anchor rod and the grouting body is increased through the hollowed-out discs one, two and three and the connecting rings, the connecting strength of the anchor rod and the grouting body is improved, the pull-out resistance of the anchor rod is increased, and therefore the support of the side slope is more stable and reliable.

The utility model belongs to the technical field of truck fuel tanks, and particularly relates to a truck fuel tank protection device which comprises a transverse supporting component, a longitudinal supporting component, a first buffering structure and a second buffering structure. A truck body is arranged on the rear side of the transverse supporting component, and a fuel tank is arranged on the front side of the truck body and located on the inner side of the transverse supporting component. The first buffering structure and the second buffering structure each comprise a sliding rod, a supporting plate is arranged on one side of each sliding rod, a sponge pad is arranged on one side of each supporting plate, and a limiting plate is arranged on the other side of each sliding rod. The first buffering structure slides on the outer side of the transverse supporting component, the second buffering structure slides on the outer side of the longitudinal supporting component, external collision is buffered, the oil tank is prevented from being stressed and deformed due to the fact that the outside is collided, the first buffering structure and the second buffering structure rebound after stress is finished, and the oil tank can be protected again. The service life of the oil tank protection device is prolonged.

The utility model provides surface deburring equipment for steel ball manufacturing, and belongs to the technical field of steel ball machining. The surface deburring equipment for steel ball manufacturing comprises a barrel and a grinding and impurity removing mechanism, supporting legs are installed at the bottom of the barrel, a motor is installed at the top of the barrel, a grinding shaft is installed at the output end of the motor, a grinding roller is installed at the bottom of the grinding shaft, impurity removing openings are formed in the two sides of the bottom of the inner wall of the barrel, and impurity removing nets are installed in the impurity removing openings. The impurity removal connecting mechanism is movably connected to the top of the interior of the impurity removal opening, by arranging the grinding and impurity removal mechanism, the steel ball workpiece can be ground, meanwhile, burr impurities separated and falling in the grinding process of the steel ball workpiece can be provided and discharged out of the space of the cylinder, and therefore the burr impurities in the cylinder can be removed when the cylinder works; and the situation that internal burrs and impurities are difficult to discharge and treat when the cylinder works is avoided, so that the impurity removal convenience and the operation efficiency of the cylinder are improved.

The invention provides assembly type curtain wall hoisting equipment and a curtain wall hoisting method, and relates to the field of curtain wall equipment.The assembly type curtain wall hoisting equipment is used for hoisting a curtain wall after fixing the curtain wall and comprises a base, the bottom of the base is connected with four positioning discs, the left side and the right side of the base are both connected with air exhaust modules, and the positioning discs are inversely buckled on the curtain wall in a bowl cover shape; the working end of the air exhaust module communicates with the inner side of the positioning disc. According to the assembly type curtain wall hoisting equipment, the sleeve is driven by the driving part to ascend, the bottom plate continuously gets close to the top plate, negative pressure exists between the bottom plate and a curtain wall in an air exhaust mode, and the effect of adsorbing the curtain wall is achieved. An electromagnet module is arranged in the positioning disc, a magnet disc is arranged on the back face of the curtain wall, and magnets are embedded in the magnet disc. And the curtain wall is clamped between the magnet disc and the positioning disc through magnetic attraction, so that the curtain wall fixing effect is further improved. And traditional ropes and temporary fasteners are replaced to be matched with and bind the curtain wall for hoisting, the curtain wall is more convenient and faster to disassemble, and certain safety is improved.

The invention discloses a tunnel model mold device and a using method, and relates to the technical field of tunnel model molds, the tunnel model mold device comprises a base, and an inner mold, an outer mold, a reinforcement cage assembly, a front cover plate and a rear cover plate which are arranged on the base; the inner mold is formed by splicing at least two sub inner molds, the driving assembly for driving the sub inner molds to extend outwards for mold closing or contract inwards for mold releasing is arranged in the inner mold, and compared with an existing mold releasing mode, the damage probability of the inner wall of the mold is reduced, and the forming quality is improved; the outer mold and the steel reinforcement framework assembly are arranged at one end of the inner mold and can linearly move along the axis of the inner mold, the outer mold can be arranged outside the inner mold in a sleeving mode to form a mold forming cavity, the steel reinforcement framework assembly can be inserted into the mold forming cavity, and a grouting hole communicated with the mold forming cavity is formed in the side wall of the outer mold; the front cover plate and the rear cover plate are arranged at the two ends of the inner mold correspondingly and used for blocking the two ends of the mold forming cavity, so that the workload of mold disassembly and assembly is reduced, operation convenience is improved, and working efficiency is improved.

The utility model belongs to the technical field of plate glass processing, and particularly relates to a planeness milling and grinding tool. The device comprises an upper-layer support, a lower-layer support and a lower-layer support, the lower-layer support is arranged below the upper-layer support, and the upper-layer support is connected with the lower-layer support through a plurality of supporting columns; the plurality of micro-distance adjusting rods are arranged in the accommodating holes in a one-to-one correspondence manner, and the ends of the micro-distance adjusting rods can extend out of the top surface of the upper-layer bracket. The utility model is used for solving the technical problems in the prior art that the production efficiency is not high due to the fact that qualified plate glass needs to be milled and ground through multiple operation steps, and materials are wasted due to the fact that large machining allowance needs to be reserved on the plate glass.

This utility model discloses an extended inner sleeve for connecting the inner shaft of a printing press, belonging to the field of printing machinery equipment. The technical solution adopted by this utility model is an extended inner sleeve for connecting the inner shaft of a printing press, including a shaft support and a transmission shaft rotatably connected to the shaft support. An installation seam is provided between the shaft support and the outer wall of the transmission shaft to prevent contact and friction between the outer wall of the transmission shaft and the shaft support. A guide sliding support assembly is provided within the installation seam to support the transmission shaft while reducing frictional resistance during its rotation. This utility model isolates the shaft support from direct contact with the transmission shaft through the installation seam and reduces frictional resistance using the guide sliding support assembly, effectively solving the problems of wear, vibration, and high maintenance costs caused by friction in traditional structures. It has the advantages of reducing frictional resistance, reducing component wear, extending service life, reducing maintenance costs, and improving transmission stability.

The utility model relates to the technical field of punching devices, in particular to a frame punching device for solar cell panel production, and aims to solve the technical problems that when a plate on a punching surface of a workpiece is thin, the rotation of a drill bit easily causes a cutter vibration phenomenon of the workpiece, so that the plate vibrates, and the punching efficiency of the frame punching device for solar cell panel production is improved. Normal punching is affected, the precision of holes is reduced, and a drill bit is damaged; according to the technical scheme, the frame punching device for solar cell panel production comprises a punching assembly, a supporting assembly, an adjusting assembly, a transverse moving assembly, a fixing assembly and a collecting assembly; compared with a traditional frame punching device for solar cell panel production, the frame punching device for solar cell panel production has the advantages that the situation that when a drill bit machines a thin workpiece, the workpiece is prone to vibrating, and the precision of a hole is affected is avoided, the area, needing to be punched, of the thin workpiece is punched, sheared and removed in a punching mode, and the situation that the drill bit is used for punching, so that the workpiece vibrates, and machining is affected is avoided.

The utility model discloses a commercial display cabinet finned condenser which comprises a finned condenser body, the finned condenser body is installed on the lower side of the interior of a display cabinet body, the finned condenser body comprises a condensation pipe, one end of the condensation pipe is fixed to a pipe inlet end, and meanwhile the other end of the condensation pipe is fixed to a pipe outlet end. A plurality of groups of radiating fins are uniformly mounted on the condensing pipe, and a plurality of groups of holes are uniformly formed in the surfaces of the radiating fins. According to the finned condenser for the commercial display cabinet, the protective grids are installed on the front face and the back face of the outer frame, the two sides of the cooling fins can be protected through the two sets of protective grids, in the process of transporting or carrying the cooling fins, the cooling fins in the condenser are prevented from being collided or extruded or impacted by other forms of external force, and the service life of the condenser is prolonged. And meanwhile, the stress deformation of the radiating fins is avoided.

This invention relates to the field of power distribution cabinet technology and discloses a multi-channel heat dissipation power distribution cabinet for smart grids. It includes a cabinet body with supporting legs at the bottom, a perforated grille top cover at the top of the cabinet body, symmetrically mounted frames on the inner walls of the cabinet, and several copper busbar partitions arranged sequentially from top to bottom on the rear inner walls of the two frames. Layered panels are also symmetrically mounted vertically on the inner walls of the two frames, and a base plate is also mounted on the inner walls of the two frames. This multi-channel heat dissipation power distribution cabinet for smart grids effectively solves the problems in existing technologies where the heat dissipation channels of power distribution cabinets are mostly fixed and normally open, unable to flexibly switch between open and closed states according to environmental conditions. In low-temperature and high-humidity environments, cold and humid air from the outside easily enters the power distribution cabinet, causing condensation, leading to corrosion and short circuits of electrical components, and the inability to effectively balance the contradiction between dust prevention, waterproofing, and heat dissipation.

The present invention relates to the field of sampling, and specifically to a road construction drilling sampling device. The device comprises a vehicle frame and a sampling assembly arranged on the vehicle frame, wherein the sampling assembly comprises a drill tube and an inner tube, wherein a plurality of drill bits are hinged at the lower end of the drill tube, and the inner tube is coaxially inserted into the inside of the drill tube, and the inner tube is a grid structure, and the inner tube comprises a first cylinder body and a second cylinder body, and a film is arranged inside the inner tube. When drilling the road surface part, the drill bit is in a horizontal state, and the contact area between the drill bit and the road surface is large, so that a large cutting support force can be maintained to prevent the drill tube from being deformed by force; when drilling the roadbed part, the drill bit is in an upright state, and the contact area between the drill bit and the roadbed is small, so that the cutting speed is accelerated and the cutting efficiency is improved, so as to adapt to different drilling requirements and improve the sample quality; at the same time, when cutting the roadbed part, the inner tube is inserted into the roadbed in advance to support the roadbed; after the drilling is completed, the film is pulled open to wrap the sample core, so as to ensure that the distribution state of each layer structure of the sample core is accurate and the authenticity of the sample is ensured.

The application discloses a small AI agricultural robot universal cross-ridge chassis, and belongs to the technical field of intelligent agriculture. The chassis comprises an integrated center mainframe (1), a plurality of vertical supporting legs (4), a non-powered horizontal swing arm connecting mechanism (8) and a walking wheel (6); the integrated center mainframe (1) is a rigid whole structure, is integrated with a standardized electrical interface (2) and a mechanical docking port (3), and is used for carrying an integrated agricultural operation module (9); the vertical supporting leg (4) is inclined outward to form a cross-ridge support during operation, the upper end is hinged to the non-powered horizontal swing arm connecting mechanism (8) and is provided with a pitch joint driving motor (5); the pitch joint driving motor (5) only realizes body height adjustment and wheel track unlocking, and does not participate in wheel track driving; the whole machine relies on the vertical supporting leg (4) to swing around the hinge point to adjust the wheel track, does not need a telescopic structure, and the wheel track adjustment power is provided by the differential of the walking wheel (6). The chassis is a pure bearing execution structure, does not have a built-in main control unit, and control and power supply are uniformly provided by the upper-mounted module. The application has the advantages of simple structure, strong universality, convenient maintenance, quick replacement of various agricultural operation modules and greatly reduced application cost of the small AI agricultural robot.

The utility model discloses a cutting device for vehicle seat cushion production, and belongs to the technical field of vehicle seat cushion production. The cutting machine comprises a cutting machine body provided with a cutting tool bit, two limiting assemblies are arranged on the top face of the cutting machine body, an auxiliary assembly is arranged on the cutting tool bit, each limiting assembly comprises a rotating rod and two bases, the two bases are installed on the two side walls of the cutting machine body, a limiting plate is movably arranged between the two bases, and a round hole is formed in the limiting plate. The rotating rod is movably arranged in the round hole, a mounting groove is formed in one side in the round hole, and a second spring is mounted in the mounting groove. The base and the circular ring provide a stable supporting structure, the rigidity of a moving track of the limiting plate is ensured, stress deformation is avoided, the limiting plate directly presses the side edge of a material, the material is prevented from transversely sliding during cutting, it is ensured that a notch is straight, the clamping plate is automatically embedded into the clamping groove, locking does not need additional operation, and efficiency is improved.