268results about How to "Cutting stability" patented technology

The invention discloses a welding clamp for a multifunctional electric welding machine, and relates to the technical field of welding clamps, the welding clamp comprises a supporting seat and a clamping size adjusting mechanism, first sliding rail sets are symmetrically arranged on the top wall of the supporting seat left and right, and sliding seats are connected to the first sliding rail sets of the supporting seat through first electric sliding blocks in a left-right sliding mode; an adapting mechanism is arranged on the sliding seat, a clamping size adjusting mechanism is arranged on the adapting mechanism, a driving mechanism is arranged on the clamping size adjusting mechanism, and an accurate butt joint mechanism is arranged in the middle of the top wall of the supporting seat. The welding fixture has the advantages that the sliding seat, the adaptive mechanism and the clamping size adjusting mechanism are matched, adaptive adjustment is performed according to the length and size of a to-be-welded pipe fitting, the limiting space is flexibly changed, and the practicability of the fixture is improved; and through cooperation of the adaptation mechanism and the accurate butt joint mechanism, the welding end of the pipe fitting can be further stably clamped conveniently, circumferential continuous welding is facilitated, and the continuity of the welding process is improved.

The utility model discloses a galvanized pipe cutting device, and relates to the technical field of galvanized pipe machining. The device comprises a bottom plate, supporting columns are fixedly installed at the four corners of the bottom end of the bottom plate, sliding plates which are symmetrically distributed are arranged on the two sides of the top end of the bottom plate in a sliding mode, fixing discs are fixedly installed at the top ends of the sliding plates, and rotating discs are rotatably installed on the sides, close to each other, of the two fixing discs. A first fixing block is fixedly installed at the top end of the rotating disc, and a second fixing block is fixedly installed on the side, close to the first fixing block, of the fixing disc. The connecting ring rotates to drive the rotating rod and the fixing sleeve to move, so that the fixing sleeve moves to the bottom from the middle of the connecting rod, and therefore the three connecting rods get close to one another; according to the galvanized pipe cutting device, a galvanized pipe is clamped through the arranged fixing rollers, so that the galvanized pipe can be more stable during cutting and cannot deviate during cutting, the quality of the galvanized pipe after cutting is guaranteed, and the elimination rate is reduced.

The utility model discloses an accurate positioning trimming device for broken bridge door and window processing, and relates to the technical field of door and window processing, the accurate positioning trimming device for broken bridge door and window processing comprises a trimming platform, four corners of the lower surface of the trimming platform are all fixedly provided with support legs, the upper surface of the trimming platform is provided with a first rectangular groove, and the upper surface of the trimming platform is provided with a second rectangular groove; rectangular sliding grooves are formed in the front side and the rear side of the interior of the first rectangular groove correspondingly, sliding plates are slidably installed in the two rectangular sliding grooves, clamping devices are arranged on the sliding plates, and under driving of a driving motor, a threaded rod rotates to drive a moving plate to move. The movable plate moves to drive the two T-shaped sliding blocks to slide in the corresponding T-shaped sliding grooves through the supporting plate and the connecting plate, the T-shaped sliding grooves, the T-shaped sliding blocks and the connecting plate are arranged, the limiting effect on movement of the supporting plate is achieved, the cutting blade is more stable during cutting through the arrangement of the double sliding rails, and the cutting precision and practicability of the device are improved.

The utility model discloses laser cutting fixing equipment for sheet metal machining, and relates to the field of sheet metal machining equipment. The laser cutting fixing equipment for sheet metal machining comprises a machining equipment base, a first guide rail is arranged at the top of the machining equipment base, a sliding frame is slidably connected to the first guide rail, a second guide rail is arranged on the sliding frame, a laser cutting head is slidably connected to the second guide rail, and two sets of supporting fixing plates are fixedly connected to the top of the machining equipment base; the tops of the two supporting and fixing plates are fixedly connected with a fixing plate, the fixing plate is fixedly connected with a fixing baffle, and the supporting and fixing plates are provided with clamping assemblies. According to the laser cutting fixing equipment for sheet metal machining, power is provided by the motor during fixing of the clamping assembly, sheet metal parts are clamped and fixed through the clamping blocks and the fixing baffles, the clamping and fixing effect is good, and operation is easy.

The invention discloses a drug packaging material bursting strength detection device, and belongs to the technical field of bursting strength detection. The device mainly comprises a base; the unwinding unit is composed of an unwinding roller and two sets of placing supports, a glue film is wound on the unwinding roller, and motors are installed on the side faces of the placing supports; the winding unit and the unwinding unit are of similar structures; fixing seats are mounted at the two ends of the sliding seat plate; spiral grooves are formed in the lead screw, and connecting rods are in transmission connection with the two sets of spiral grooves; limiting grooves are formed in the movable rods and the connecting rods, side protruding blocks are installed on the movable rods, and a pressing roller is installed between the two sets of movable rods. And a first rack is mounted on the protruding part of the first gear. According to the bursting strength detection device for the medicine packaging material, the flattening mechanism is used for flattening and wrinkle removing operation on the adhesive film, and the subsequent half pressing ring is used for preliminarily fixing the flattened adhesive film under the action of the second spring, so that the pressing roller is prevented from crossing the adhesive film, the adhesive film is prevented from being wrinkled after being recovered to the initial state.

The utility model discloses a mulberry leaf cutting machine which comprises a machine frame, and a transmission mechanism, a cutting mechanism, a belt conveyor and a spray washing mechanism are arranged in the machine frame. The belt conveyor is arranged above the cutting mechanism, the transmission mechanism is in transmission connection with the cutting mechanism, and the transmission mechanism is in transmission connection with the belt conveyor; the cutting mechanism comprises a transverse cutter set and a longitudinal cutter set, and the transverse cutter set and the longitudinal cutter set are meshed with each other. And the spray-washing mechanism comprises an air compressor, an external spray-washing mechanism and an internal spray-washing mechanism. The transverse cutter set and the longitudinal cutter set are matched with each other for simultaneous cutting, secondary cutting is not needed, meanwhile, the blade distance can be adjusted, and therefore cutting of mulberry leaves of different sizes is achieved, and the mulberry leaf cutting efficiency is high; cutting is relatively stable, loss of the mulberry leaves is reduced, nutrition of the mulberry leaves is effectively reserved, and water loss is reduced.

The utility model relates to the technical field of cutting equipment, and discloses a cutting device for aluminum alloy door and window machining, which comprises a machining table, the top of the machining table is fixedly connected with a supporting plate, and the top of the machining table is fixedly connected with an electric push rod. An output shaft of the electric push rod is fixedly connected with a supporting column slidably connected with the interior of the machining table, the top of the supporting column is fixedly connected with a supporting frame, the top of the supporting frame is fixedly connected with a hydraulic rod, and an output shaft of the hydraulic rod extends into the supporting frame. A hydraulic rod is fixedly connected to the top of the machining table, a pressing disc is fixedly connected to an output shaft of the hydraulic rod, a cutting table is fixedly connected to the top of the machining table, a cutting machine is installed on the outer side of the cutting table, and the number of the supporting columns is two. The cutting device for aluminum alloy door and window machining has the beneficial effects that aluminum alloy profiles needing to be cut are lifted and cut, and the influence on the cutting table is prevented.

The invention discloses a forming device for manufacturing a reinforced concrete prefabricated frame, and relates to the technical field of reinforced concrete prefabricated frames, the forming device comprises an electric telescopic rod, a cutting table, a supporting rod and a connecting frame, the electric telescopic rod is fixedly mounted at the top of the cutting table, an extension plate is fixedly connected to the side wall of the cutting table, and a positioning groove is formed in the extension plate; the supporting rod is fixedly connected to the bottom of the electric telescopic rod. The supporting rod drives the shell to move upwards through the connecting frame, the shell drives the adjusting assembly to synchronously move upwards through the conveying assembly, the adjusting assembly can drive the prefabricated steel bar frames fixed by the fixing assembly to move upwards, clamping and hoisting of the prefabricated steel bar frames are achieved, and it can be ensured that the multiple prefabricated steel bar frames are in the clamped and fixed state; and the situation that the cutting positions of the multiple steel bar frames of the same concrete prefabricated frame are unequal can be avoided, and the effect that the multiple steel bar frames are cut at the same position in the same batch is achieved.

The utility model relates to the technical field of cutting devices, and discloses an engineering material cutting device which comprises a base, a plurality of supporting legs are fixedly connected to the periphery of the bottom of the base, an operation table is fixedly connected to the top of the base, limiting grooves are formed in the front end and the rear end of the operation table, and sliding grooves are formed in the tops and the bottoms of inner cavities of the limiting grooves. Two sliding blocks are slidably connected into the sliding groove, a connecting rod is fixedly connected to one side of each sliding block, a fixing plate is fixedly connected to the inner side of each connecting rod, and a pin hole is formed in the surface of the rear end of an inner cavity of the limiting groove. According to the engineering material cutting device, when a worker pushes a fixing plate inwards, the two sides of the fixing plate are connected with connecting rods, meanwhile, the inner sides of the bottoms of the connecting rods are connected with sliding blocks, and the sliding blocks slide in limiting grooves formed in the front side and the rear side of a base; and therefore, a worker can push the two fixing plates to fix the sizes of cutting materials with different widths, so that the worker can use the cutting device more conveniently.

The utility model provides an adjustable rotary box dumping device capable of automatically distributing boxes, the rotary box dumping device is arranged in the middle of a packaging box conveying belt, packaging boxes are sequentially pushed into the front end of a movable overturning groove in a clinging manner through the conveying belt, and the rotary box dumping device comprises the movable overturning groove and an adjustable overturning slope; an adjustable overturning slope is transversely arranged on the bottom face of the inner side of the movable overturning groove, a translation motor is arranged at the bottom of the translation guide groove, an adjustable overturning slope is vertically arranged above the translation guide groove, the adjustable overturning slope is a multi-section chain shaft type slope, and the adjustable overturning slope comprises a gradient multi-section guide plate and a leading-out linear plate. The gradient multi-section guide plate is formed by connecting a plurality of slope blocks through pin shafts, through the adjustable overturning slope capable of moving in a multi-section mode, one end of a packaging box can be lifted to be vertical through the slope surface, it is guaranteed that the packaging box can be stably vertical after being overturned, and toppling is prevented; and the gradient multi-section guide plate capable of being freely adjusted can adapt to the packaging boxes with various thicknesses, a set of rotary box dumping device does not need to be independently customized for the specification of one packaging box, the utilization rate of the device is increased, and the cost is reduced.

The utility model discloses a thickness tester for engineering materials in the technical field of thickness testers, which comprises a detection mechanism and a supporting and limiting assembly, the supporting and limiting assembly is mounted at the top of the detection mechanism, and the detection mechanism comprises a mounting base for testing the thickness of the engineering materials and a detection part. The detection component is arranged on one side of the exterior of the mounting base, the supporting and limiting assembly comprises a supporting component and a limiting component which are used for testing the thickness of the engineering material, and the limiting component is connected to the two sides of the top of the supporting component. Different assemblies can be rapidly disassembled, maintained or replaced according to different use requirements, the maintenance efficiency of the tester is improved, the service life of the tester is prolonged, the tester can adapt to engineering materials of various widths, the universality of the tester is improved, the thickness tester can be rapidly and accurately adjusted through the design, and high efficiency and accuracy of measurement are ensured.

The utility model discloses a portable loose tooth fixing oral cavity teaching model, which belongs to the field of oral cavity teaching models and comprises a lower oral cavity base and an upper oral cavity base, the upper oral cavity base is positioned at the upper end of the lower oral cavity base, and the lower oral cavity base is fixedly hinged with the upper oral cavity base. The inner sides of the lower oral cavity base and the upper oral cavity base are both fixedly provided with simulated gingiva, and the simulated gingiva is internally provided with a plurality of cavities, so that limiting blocks can be fixedly arranged at the bottoms of teeth, and a limiting assembly and a control rod are arranged at the bottom in a wall body for fixing the teeth; the control rod is used for controlling the limiting assembly to fix and separate the limiting blocks at the bottoms of the teeth, fixing and loosening control over the teeth is achieved, medical students can automatically select gomphiasis at different positions for simulation training, the practicability and functionality of the oral cavity teaching model can be effectively improved through the structure, and the teaching operation quality is improved.

The utility model discloses a stainless steel pot trimming equipment, including machine table, rotation device, hold-down gear and cutting device, rotation device includes first frame, driving spindle, driven spindle and first drive mechanism, first frame is fixed connection on machine table, driving spindle is horizontally arranged and rotatablely connected on first frame, driven spindle is fixed on first drive mechanism. One end of the driving rotating shaft is fixedly connected with a first flange plate, the first driving mechanism is connected with the other end of the driving rotating shaft and can drive the driving rotating shaft to rotate, and the driven rotating shafts are used for sleeving stainless steel kettles and have different specifications; the first flange plate and the second flange plate are detachably and fixedly connected through bolts; the pressing device is used for pressing the stainless steel kettle onto the driven rotating shaft; the cutting device is used for cutting stainless steel kettles. The embodiment of the utility model can quickly adapt to the machining requirements of workpieces with different sizes.

The utility model belongs to the technical field of pull rod cutting machines, and particularly relates to a pull rod cutting machine with a clamping structure, which comprises a base for placing a pull rod, the top of the base is connected with a movable frame through a rotating shaft, a knife rest is mounted on one side of the movable frame, and a cutting knife is mounted in the middle of the knife rest. And the cutting knife is fixed in the middle of the knife rest through bolts. When the pull rod cutting device is used, a pull rod to be cut can penetrate through the fixing base, the position of the pull rod to be cut is adjusted, the pull rod is placed on the fixing base, then the worm is rotated to drive the connecting shaft to rotate through the worm gear, the guide block is extruded through the cam, and the guide block drives the pressing block through the guide rod to clamp the pull rod in the fixing base. And the two ends of the pull rod are clamped through the pressing blocks in the two sets of fixing bases, so that the pull rod is more stable during cutting, and the pull rod is prevented from shaking during cutting.

The utility model relates to the technical field of color master batch production, and discloses a color master batch production cutting device which comprises a bottom plate, L-shaped supporting plates are fixed to the two sides of the bottom of the bottom plate, a plurality of cutting grooves are formed in the upper portion of the bottom plate at intervals, positioning mechanisms are arranged on the two sides of the upper portion of the bottom plate, and side plates are fixed to the side walls of the bottom plate. An upper plate is fixed to one side of the upper portion of the side plate, a lower plate is arranged between the lower portion of the upper plate and the bottom plate, and a pushing mechanism is connected between the lower plate and the upper plate. According to the color master batch cutting device, long-strip color master batches needing to be cut are placed above the bottom plate, then the lower plate is pushed to move downwards through the pushing mechanism, the lower plate moves downwards to drive the multiple cutting knives to move downwards, and when the multiple cutting knives are inserted into the cutting grooves, the long-strip color master batches can be cut into multiple sections at the same time; therefore, the cutting efficiency of workers can be improved.

The double-edge sawtooth bone knife comprises a knife rod, the knife rod is connected with a blade, and the section, away from the knife rod, of the blade is provided with a cutting part; the cutting part comprises a first sawtooth part arranged at the end of the blade, a second sawtooth part and a third sawtooth part, the second sawtooth part and the third sawtooth part are arranged on the two sides of the blade respectively, the second sawtooth part and the third sawtooth part are connected to the two ends of the first sawtooth part respectively, and each of the second sawtooth part and the third sawtooth part comprises a plurality of convex back teeth. The cutting part has the advantages that the tooth-shaped structural design of the cutting part is optimized, vibration and noise during use are reduced, and the cutting quality can be improved.

The utility model relates to the technical field of trolleys, and discloses a foldable three-side trolley convenient to use, which comprises a bottom frame, angle iron fixedly welded in the bottom frame, a bottom plate arranged on the bottom frame, and a lock arranged at the bottom of the bottom plate. The second protective fence is folded towards the interior of the first protective fence through the hinges arranged between the second protective fence and the first protective fence, so that the space occupied by products when the products are stacked is reduced, and then the two rear trundle plates are additionally arranged on the left side and the right side of the bottom of the first protective fence; the caster plate can be connected with the bottom frame during assembly while the first universal wheel is installed, so that connection between the first protective fence and the bottom frame is achieved, and product assembly is facilitated; therefore, the inserting rods at the bottom of the second protective fence can be well inserted into the second protective fence to limit the second protective fence and keep the second protective fence stable.

The invention belongs to the technical field of antibacterial fabrics, and particularly relates to a high-breathability antibacterial fabric preparation device and process, the high-breathability antibacterial fabric preparation device comprises two side locking housings, a sliding groove is formed in the middle of the surface of one side of each side locking housing, rollers are slidably connected in the sliding grooves, one end of each roller is movably connected with a supporting cylindrical plate, and the other end of each roller is movably connected with a pressing plate; the two sides of the supporting barrel-shaped plate are fixedly provided with pressurizing plates, grooves are formed in the middle portions of the lower surfaces of the pressurizing plates, the roller coating in the padding pool can not only press and guide the fabric, but also stir the antibacterial agent in the padding pool under rotation, and when the roller coating presses the fabric, the antibacterial agent in the padding pool can be stirred, so that the antibacterial effect is improved. The antibacterial finishing agent and other coating materials can better permeate into fiber gaps of the fabric, the antibacterial agent is in full contact with the fibers under the compression effect, the adhesion rate of the antibacterial agent on the fabric is increased, it is like that tiny particles are squeezed into the gaps between the fibers, the particles are more firmly attached to the fabric, and therefore the durability of the finishing effect is improved.

The utility model belongs to the technical field of processing equipment, particularly relates to a high-efficiency mechanism for overturning a product, and aims to solve the problems that an existing common overturning mechanism needs to return to an initial position in the overturning process, extra time is consumed, an extra power mechanism is needed for grasping the product, and the like. Comprising a first supporting frame and a second supporting frame, driving cams are fixedly installed on the sides, close to each other, of the first supporting frame and the second supporting frame, a first rotating shaft rotationally penetrates through one side of the first supporting frame through a bearing, and a second rotating shaft rotationally penetrates through one side of the second supporting frame through a bearing. The turnover mechanism does not need to be reset after turnover is completed, the next cycle of machining can be directly carried out, and the production efficiency is remarkably improved; and the mechanism does not need an additional grasping device, stable supporting and limiting in the product overturning process can be achieved through cooperation of the telescopic assembly and the overturning assembly, the structure is simplified, cost is reduced, and product damage is avoided.

The utility model discloses a drive module includes two cylinders of symmetrical setting at cylinder cover both sides, two cylinders can guarantee that cylinder cover stress is even, and the lift movement of cylinder cover is driven through cylinder, and the opening and closing of cylinder cover can be realized without manual force, and the labor intensity is reduced, the stability of the lift process of cylinder cover can be guaranteed through the cooperation of the guide column and the guide sleeve of guide module, avoids the tilting or the collision of cylinder cover because of uneven stress and leads to the damage of equipment, the sealing module can guarantee that cylinder cover and knead cylinder body's sealing fit, prevents material leakage, and the adaptive adjustment module can dynamically adjust the lift speed of cylinder cover according to the pressure in knead cylinder body, when the pressure in knead cylinder body is too big, the lift speed of cylinder cover reduces, avoids the material splashing under high pressure working condition, the intelligent monitoring module can real -time monitoring equipment state, and early warning failure avoids the accident, and the quick cleaning module can carry out the automatic cleaning to the material of remaining in the inside of cylinder cover, reduces manual operation.

The utility model discloses a continuous transformer paperboard blanking machine which comprises a machine frame, the top of the machine frame is fixedly connected with a left supporting frame and a right supporting frame, a transverse pressing assembly is arranged between the two supporting frames, a longitudinal pressing assembly is arranged on the right supporting frame, a longitudinal feeding assembly and a transverse feeding seat assembly are arranged above the machine frame, and the transverse feeding seat assembly is arranged above the machine frame. The longitudinal feeding assembly is used for clamping a transformer paperboard in the longitudinal direction and adjusting the transverse cutting position of the paperboard, and the transverse feeding seat assembly is used for clamping the transformer paperboard in the transverse direction and adjusting the longitudinal cutting position of the paperboard. According to the continuous transformer paperboard blanking machine, when transformer paperboards are blanked, cutting is completed while the paperboards are blanked through cooperation of the longitudinal cutting assembly, the transverse cutting assembly, the longitudinal feeding assembly and the transverse feeding assembly, and the transformer paperboard machining procedure continuity is high.

The utility model discloses a guide cutting device of a handheld electric pipe cutting machine, which relates to the field of handheld electric pipe cutting machines and is characterized in that a reduction gear box and a machine body are arranged on a power device, the guide cutting device is arranged in the machine body, a cutter is arranged on the guide cutting device, and a knife edge cutting seat is integrally arranged at the front end of the machine body. The power device pushes the transmission screw to rotate so as to drive the driving seat to move forwards, so that the triangular cutter on the driving seat moves forwards to push the cutter head to move forwards linearly and push the cutter tip to cut into the water pipe, the other force perpendicular to the cutting surface enables the cutter head to be tightly pressed on the surface of the water pipe, and large pressure can be generated due to the small area of the tip. The water pipe material can be effectively wedged in, the water pipe material is split in the cutting direction through the blades on the two sides of the rear tool nose, the output shaft of the motor and the tool are designed according to the linear running principle, cutting is more stable, and time and labor are saved during operation.

The invention discloses a square tube type protective barrier and a using method thereof, and relates to the field of protective barriers, the square tube type protective barrier comprises a stand column, a cross rod, a positioning mechanism, a fixing mechanism and a splicing mechanism, the positioning mechanism is used for supporting and positioning the cross rod, the fixing mechanism is used for limiting and fixing the top of one end of the cross rod, and the splicing mechanism is arranged between the stand column and the cross rod; the connecting device is used for installing and connecting the stand column and the cross rod. By rotating a rotating rod, a nut seat drives a supporting block to move upwards together, the height of a cross rod is adjusted, a connecting rod is pulled to rotate, the connecting rod pulls a sliding block and a limiting block to move towards the back face and extrudes the front face of the cross rod, and then a movable block is rotated upwards around a mounting shaft; the inner walls of the movable blocks are attached to the upper surfaces of the transverse rods, the transverse rods are positioned and fixed, the stability of the transverse rods is improved, the transverse rods and the stand columns are conveniently installed and connected, and the installation efficiency of the protective handrail is improved.

A wheeled vehicle limiting device belongs to the technical field of industrial peripheral vehicles, including a track carrier, a track carrier is provided on the track carrier, a connecting rod device is provided in the track groove, the connecting rod device includes a movable limiting member and a track connecting plate, one end of the movable limiting member is elastically hingedly connected to the track end, and the other end of the movable limiting member is elastically hingedly connected to the track connecting plate; the movable limiting member can be sunk into a slot, and the track connecting plate moves toward the front wheel under the drive of the movable limiting member, and the rear end of the track connecting plate forms a rear wheel slot with the track. The present invention sets a connecting rod device in the track, and uses movable limiting blocks and track connecting plates to cover the slots above the track positions corresponding to the front and rear wheel slots, respectively, to limit the entire vehicle, and the track connecting plate can automatically return to its original position through a connecting spring.

This utility model discloses a building construction material processing and cutting mechanism, comprising: an operating table with a fixed groove, a lifting transmission box fixedly connected to the upper surface of the operating table, a lifting threaded rod movably connected to the upper surface of the lifting transmission box, a lifting plate threadedly connected to the side surface of the lifting threaded rod, and a pressure plate fixedly connected to the lower surface of the lifting plate; and a fixed plate with a movable threaded rod movably connected to its side surface, a movable plate threadedly connected to the side surface of the movable threaded rod, a clamping plate fixedly connected to the lower surface of the movable plate, and a cutting blade movably connected to the side surface of the clamping plate. Through this structure, automated fixing and cutting of building construction materials are achieved, keeping the material stable during cutting and preventing it from moving or popping out. It can meet the cutting requirements of materials of different shapes and sizes, ensures consistent cutting accuracy, and improves the cutting efficiency and applicability of the cutting mechanism.

The utility model relates to fruit picking technical field, and disclose a kind of high fruit picker, including annular, the inside one side of annular is fixedly connected with mounting bracket, the one side of mounting bracket is equipped with threaded hole, the top of mounting bracket is threadedly connected with blade, the bottom of annular is fixedly connected with anti-falling net, the bottom of anti-falling net is fixedly connected with air bag, the one side of air bag is fixedly connected with inflation port, the one side of inflation port is fixedly connected with plug, one end of anti-falling net is fixedly connected with circular support, the bottom of circular support is fixedly connected with base, the bottom of base is fixedly connected with ground insertion.This high fruit picker is set by setting anti-falling net, air bag, plug, circular support and ground insertion, without picking one fruit each time to be picked down and placed fruit picker, avoid the time wasted by frequent lifting picker, greatly improve picking efficiency, more fruit picking work can be completed in shorter time, satisfy the demand of large-scale fruit picking of agriculture.

The utility model provides a head and neck fixing pillow which comprises a head pillow body, a pillow cover, a pillow cover, a pillow cover, a pillow cover and a pillow cover, the head pillow body is provided with a groove, and the shape of the groove is matched with that of the head of a child patient; the supporting frame is connected to the bottom of the headrest; the limiting frame is connected to one side of the headrest, a plurality of limiting grooves are formed in the limiting frame, and the angle of the headrest is changed by changing the position of the supporting frame in the limiting grooves. The problem that a fixing pillow in the prior art lacks an angle-adjustable structure and cannot adapt to physiological characteristics of heads and necks of different child patients is solved.

The utility model discloses a stainless steel pipe fitting bending device which comprises a supporting clamping base used for supporting, a servo motor used for transmission is arranged at the bottom of the inner end face of the supporting clamping base, and a two-way lead screw is fixedly arranged at the output end of the servo motor. The V-shaped guide grooves and the two-way lead screws in the pipeline conveying rollers are in threaded connection with the two sets of ball sliding seats, stainless steel pipes with different diameters can be conveniently and stably conveyed and limited by equipment, meanwhile, the stepping motor can drive the guide lead screws to rotate through the driving bevel gear and the driven bevel gear, and the stainless steel pipes with different diameters can be conveniently conveyed and limited. And the guide screw rod can regulate and control the bending radius of the bending guide roller according to the bending requirements of different pipelines, and meanwhile, the bending angle of the stainless steel pipe fitting can be precisely regulated and controlled according to the requirements, so that the stainless steel pipeline bending device can be conveniently adapted to stainless steel pipelines of different models subsequently, and the practical performance of the device is effectively improved.

The utility model discloses a kind of agricultural product rapid detection sample fixing devices, it is related to agricultural product detection technical field, including main fixed seat and limiting component, the main fixed seat is integrated structure, and the protruding vertical plate is set in main fixed seat upper and lower ends, and limiting component includes micropore groove, negative pressure air suction pipe, mute vortex pump, lower electric push rod, lower arc limiting piece, upper electric push rod and upper arc limiting piece.The agricultural product rapid detection sample fixing device, limiting component makes the device can be realized to the agricultural product sample needing entire detection stable limit, ensure the stability of sample in detection process, avoid the detection error caused by moving or rolling, also can prevent sample from being contaminated or damaged in detection process, ensure the reliability and accuracy of detection data, by movable assembly, so that the device can limit and fix the agricultural product sample of local sampling, also can be automatically rotated, convenient for detecting multiple samples.

The utility model relates to the field of laser cutting, and discloses a limiting mechanism for a laser cutting machine, which comprises a mounting seat, an electric telescopic rod is fixedly connected to the outer wall of the upper end of the mounting seat, a first fixing block is fixedly connected to the outer wall of the right side of the electric telescopic rod, and a first limiting block is fixedly connected to the outer wall of the front side of the first fixing block. The outer wall of the front side of the first fixing block is elastically connected with a clamping block through a torsional spring, the edge of the outer wall of the upper end of the first fixing block is rotationally connected with a rotating plate, the outer wall of the front side of the rotating plate is fixedly connected with a second limiting block, and the inner wall of the upper end of the rotating plate penetrates through and is in threaded connection with a threaded rod. According to the metal plate limiting device, the metal plate is limited through the pressing plate, after machining, the clamping block is rotated to relieve limiting of the rotating plate, the rotating plate is rotated to drive the pressing plate to leave the outer wall of the metal plate, then the metal plate of the same specification is placed on the first fixing block, the rotating plate and the pressing plate are rotated to the original position again, and therefore the metal plate can be limited, and time is saved.