38results about How to "Adjust the length of use" patented technology

The invention relates to a thin-wall thread bushing machining tool. A top cover is connected with an end cover through a mandrel, the outer wall of the top cover is provided with a first top cover outer circle wall used for being clamped by a three-jaw chuck, a second top cover outer circle wall used for being matched with the inner wall of a workpiece and a top cover bench used for abutting against the end face of the workpiece, a top cover through hole is further formed in the axis of the top cover, a locking key is arranged between the top cover through hole and the mandrel, the end cover outer wall is provided with an end cover outer circle wall matched with the inner wall of the workpiece and an end cover bench used for abutting against the end face of the workpiece, an end cover blind hole is further formed in the axis of the end cover, and the blind hole end of the end cover blind hole is connected with the end face of the mandrel through a first fastening bolt and a limiting pin. Threads are further arranged on the end cover outer circle wall of the end cover. By the adoption of the structure of the thin-wall thread bushing machining tool, it is guaranteed that the workpiece can not be deformed in the machining process, the one-time inspection application pass percent of the workpiece reaches about 98%, and the aim of machining nylon-material thin-wall thread bushing parts is fundamentally achieved.

The invention relates to the technical field of ornament and decoration and discloses a wall painting roller brush convenient to use. The wall painting roller brush convenient to use comprises a brushcavity rotating wheel, evenly-distributed brushing holes are formed in the inner wall of the brush cavity rotating wheel, and brushing seat rods are fixedly connected to the interior of the brushingholes. The sides, away from a cavity of the brush cavity rotating wheel, of the brushing seat rods are fixedly connected with bristles, a roller cavity rotating wheel is arranged on the right side ofthe brush cavity rotating wheel, and evenly-distributed tube holes are formed in the inner wall of the roller cavity rotating wheel. According to the wall painting roller brush convenient to use, wallbrushing and rolling can be conducted simultaneously, a large amount of manpower is saved, wall painting by workers is more accurate, and the condition of wasting or disorderly brushing due to splashing in paining and the condition that the ground or the workers are messy due to dropping of coating are avoided; and meanwhile the using length of the roller brush can be adjusted, using by the workers is greatly facilitated, a large quantity of manpower and materials are saved, and the using rapidness and convenience of the roller brush and the efficiency of wall painting are improved.

The invention discloses a pediatric internal medicine intelligent breathing apparatus, and belongs to the field of medical instruments. The breathing apparatus comprises a breathing mask, an air inletcover, a jaw fixed tray and 'Y'-shaped fixed belts, fixed rings are uniformly mounted at two outer side ends and the bottom of the breathing mask, the 'Y'-shaped fixed belts are mounted on the fixedrings of two ends of the breathing mask, a connecting belt is fixed onto the fixed ring of the bottom of the breathing mask, and the jaw fixed tray is connected at one end of the connecting belt. Thebreathing apparatus is provided with the breathing mask, the jaw fixed tray, a tray fixed belt, the connecting belt, an elastic belt, the 'Y'-shaped fixed belts, the fixed rings and a silicon rubber case, so that the breathing mask conveniently covers a mouth and a nose of a child, the elastic belt id fixed into the rear of the child, the jaw fixed tray is fixed at the bottom of a jaw of the childand fixed with the elastic belt through the tray fixed belt, the device is sufficiently fixed onto the face of the child, and falling-off in the use process is avoided.

The invention relates to a length-adjustable yoga rod. The length-adjustable yoga rod comprises a plurality of rolling wheels (1), an intermediate shaft (2), a first handle (3) and a second handle (5), wherein the first handle (3) and the second handle (5) are arranged at the two ends of the intermediate shaft (2) respectively; the rolling wheels (1) are arranged on the intermediate shaft (2) in a rolling mode; one end of the intermediate shaft (2) is fixedly connected with the first handle (3), the other end of the intermediate shaft (2) is movably connected with the second handle (5), and the intermediate shaft (2) is composed of a plurality of short shafts (4) in a sleeving mode. The length-adjustable yoga rod is simple in structure and convenient to use and install, the short shafts are arranged and detachably connected through spring balls, we can adjust the using length of the yoga rod, the length-adjustable yoga rod is suitable for people in different groups to use, and the length-adjustable yoga rod is convenient to carry while storage is convenient.

The invention relates to the technical field of landscaping engineering, in particular to a tree windproof device for municipal landscaping. The device comprises an outer lantern ring, inner lantern rings, a steel wire rope and a fixing base, the outer lantern ring is formed by combining two semi-circular rings, one ends of the two semi-circular rings are connected through a hinge, connecting plates are welded to the other ends, and the two connecting plates are fixed through bolts; the inner lantern rings are mounted on the inner walls of the two semicircular rings through limiting structuresand springs, each inner lantern ring is composed of two arc-shaped clamping rings, and the two arc-shaped clamping rings are symmetrically arranged; and a plurality of fixing rings are fixed on the outer wall of the outer lantern ring, and screw rod ends are hung on the fixing rings. The use length of the steel wire rope can be adjusted, and the device can be used in different environments and isalso suitable for fixing and preventing wind for trees with different heights; and after the rope winding disc stops rotating, fixing threaded sleeves can be further screwed on the outer walls of thescrew rod ends, the steel wire rope can be tightened in an auxiliary mode, and the stability and the windproof effect of the device are improved.

The invention discloses a control device of a split type minimally invasive surgery robot. The control device comprises a base, a telescopic column and adjusting mechanisms, wherein rollers are arranged at the lower parts of two ends of the base, and stop blocks are distributed on the inner sides of the rollers; an inner frame is arranged in a cross beam, and a threaded rod is distributed in the middle of the inner frame; a sliding block is connected to the middle of the threaded rod, and a connecting rod is fixed to the lower end of the sliding block; a connecting frame is arranged at the lower end of the connecting rod, and a probe lamp is distributed at the lower end of the connecting frame; and the adjusting mechanisms are arranged at the lower parts of two ends of the connecting frame, and minimally invasive surgery cutters are distributed at the other ends of the adjusting mechanisms. The control device of the split type minimally invasive surgery robot is provided with a hydraulic rod, a transmission motor and the threaded rod, the overall height of the device can be adjusted through the hydraulic rod, the transverse positions of the cutters can be adjusted through the threaded rod, and different cutters can be adjusted and replaced through the adjusting mechanisms, so that convenience is brought to workers.

The invention relates to a shovel, in particular to a labor-saving shovel with a quickly replaceable shovel head. The technical problem is to how to design the labor-saving shovel with the quickly replaceable shovel head, the shovel head can be conveniently replaced, and people of different heights can use the shovel in a labor-saving mode. The labor-saving shovel with the quickly replaceable shovel head comprises a supporting rod provided with the detachable shovel head at one end, and an anti-skid holding sleeve fixedly arranged on the periphery of the outer side, far away from the detachable shovel head, of the supporting rod in a sleeving mode. The detachable shovel head makes contact with soil, a lever force application mechanism is treaded to move downwards, the lever force application mechanism moves downwards to drive the supporting rod to move downwards, the supporting rod moves downwards to drive the detachable shovel head to move downwards to be inserted into the soil, then the supporting rod is pulled to swing, so that the soil is shoveled out through the detachable shovel head; and through the effect of a clamping mechanism, the detachable shovel head is convenient to replace.

The invention discloses portable wearable equipment for reflecting human body preference to environment in real time based on eye movement data, which comprises a helmet main body, a liquid crystal display screen, an infrared camera and a second elastic bandage, and is characterized in that the liquid crystal display screen is mounted on one side of the helmet main body. By installing an reserved insertion block, a reserved insertion groove, a connecting clamping block and an overhaul cover plate, when the device is actually used, on one hand, a user can use a clamping connection structure formed by the connecting clamping block and a clamping groove to be matched with the locking and fixing effect of a screw, the infrared camera can be disassembled, assembled and maintained on the helmet body, on the other hand, the user can use an insertion connection structure formed by the reserved insertion block and the reserved insertion groove to be matched with the locking and fixing effect of screws, the overhaul cover plate can be disassembled or assembled on the helmet body, and then the user can overhaul and maintain the electronic elements in a containing groove conveniently.

The invention discloses a light reinforced concrete pipe gallery which comprises a first pipe gallery, a concrete wall, a base and a second pipe gallery. The second pipe gallery is mounted on one sideof the first pipe gallery. The base is arranged at the bottom end of the first pipe gallery and the bottom end of the second pipe gallery. A partition plate is mounted in the middle of the top of thebase. A water stop baffle is mounted at the top of the partition plate, and the concrete wall is cast at the position, between the water stop baffle and the partition plate, of the top of the base. Air grooves are mounted at the top end in the concrete wall, and a fan is mounted at the bottom of each air groove. According to the light reinforced concrete pipe gallery, through mounting of the first pipe gallery, the concrete wall, the base and the second pipe gallery, first fixed steel bars and second fixed steel bars are evenly mounted in the concrete wall and the base, first reinforcing barsare evenly mounted on the two sides of the partition plate, second reinforcing ribs are evenly mounted on one sides of third reinforcing ribs evenly mounted on the two sides of the water stop baffle,the rigidity and strength of the whole pipe gallery can be increased conveniently, and the situation that concrete cracking is caused due to the fact that the device is affected with external force is avoided.

The invention discloses a disc-type extension socket and belongs to the electric power equipment technology field. The extension socket comprises a plug, a power supply line, a box body, a coiling unit, a timing unit and a socket unit. A three-pin plug on the extension socket can be used for a three-hole power socket and can be also used for a two-hole power socket. A power line is in a flat and arc shape and is easy to wind so that a space is saved, and the power line can only be wound unidirectionally so that the power line is not easy to twist. The coiling unit is arranged, can automatically gather a power line and can adjust the usage length of the power line according to an actual condition. The timing unit is arranged to effectively prevent an overcharge accident and can be used to set power utilization in a low price time period. The sockets are rotatably connected to a box body. Socket directions can be arbitrarily adjusted. The sockets comprise a timing socket, a untimed socket and a USB interface socket and a plurality of different demands can be satisfied. The structure is reasonable and compact, the size is small, an appearance is beautiful, there are many functions, practicality is good and safety is high.

The invention discloses a special laparoscope aspirator with gripping tongs for hepatobiliary surgery, and the special laparoscope aspirator comprises an outer sleeve; the interior of the outer sleeveis of a hollow structure, an outer telescopic pipe is slidably mounted in the middle of the left end of the outer sleeve, threaded fixing pins are in threaded connection with the outer surfaces of the upper side and the lower side of the outer sleeve, and the outer sleeve is fixed to the outer telescopic pipe through the threaded fixing pins; the periphery of the outer surface of the middle of the outer telescopic pipe is fixedly sleeved with a mounting block, fixing grooves are fixedly connected to the outer surfaces of the front and rear sides and the upper and lower sides of the mounting block correspondingly, the interiors of the surfaces of the fixing grooves are of hollow groove structures, and rotating shafts are rotatably connected to the front and rear sides of the fixing grooves. Opening and closing of the grasping forceps are controlled by controlling the electric push rod, so that the aspirator can be well fixed in the using process, it is guaranteed that the aspirator canconduct aspiration at the accurate position, the situation that the aspiration effect is affected due to the fact that the aspirator is manually supported and tired is prevented, and it is guaranteedthat an operation can be smoothly completed; and the operation is simpler.

The invention belongs to the technical field of intelligent fixed telephones, and particularly relates to an intelligent fixed telephone with a Bluetooth headset, which comprises a fixed telephone body, the two sides of the fixed telephone body are provided with storage holes, one side adjacent to the storage holes is fixedly provided with a take-up plate, and the top of the fixed telephone body is provided with an indicator light, a Bluetooth module and a dialing keyboard. Two movable rods are slidably installed between the inner walls of the two sides, adjacent to the storage hole, of the fixed-line telephone body, racks are fixedly installed on the sides, close to each other, of the two movable rods, storage boxes are fixedly installed on the sides, away from each other, of the two movable rods, and Bluetooth earphones are arranged in the two storage boxes; and a rotating groove is formed in the inner wall of the bottom of the fixed-line telephone body. The intelligent fixed telephone is simple in structure and convenient to use, the intelligent fixed telephone is provided with the Bluetooth headset and is convenient to store, the use length of the data line can be adjusted according to the actual use condition, and the disorder phenomenon is avoided.

A belt head has a belt head, the belt head has a belt head body, the belt head body is connected with a belt connecting piece, and the belt connecting piece has a belt fixing screw hole. The belt head can be used to connect the belt body with ≥ 2 level belt length adjustment holes in the front part of the belt body, so that one kind of belt can adapt to the needs of users with different waist circumferences in a wide range, can adjust the specific use length of the belt, and improve the use of the belt. It has the advantages of improving the comfort of the belt, improving the convenience of using the belt, avoiding frequent replacement of the belt, and saving the number of belts used.

A belt head, a belt head, the belt head has a belt head body, the belt head body is connected with a belt connecting piece, the belt connecting piece has a belt passing opening, the belt connecting piece is opposite to the belt passing opening, there is another belt passing opening, and the belt is connected Pieces have belt fixing screws. The invention has the advantages that a belt can be adapted to the needs of users with different waists in a large range, the specific use length of the belt can be adjusted, the comfort of the belt can be improved, the convenience of the belt can be improved, frequent replacement of the belt can be avoided, and the use of the belt can be saved. Quantity and other advantages.

The invention discloses a handrail for a tractor with a position-limiting function, comprising a first socket, a second socket, a first support rod and a second support rod, and the first support rod is fixedly sleeved on the first socket The outer surface of one side of the first support rod is fixedly sleeved on the outer surface of the other side of the first socket, the second socket is arranged at one end of the first socket, and one end of the first socket The outer surface is fixedly equipped with a first card holder, and the outer surface of one end of the second socket is fixedly installed with a second card holder, and the first socket and the second socket are connected by the first card holder and the second card holder. The seats are docked and fixed, two groups of rotating grooves are provided on the inner side of the first card seat, and two groups of rotating snap rings are fixedly installed on the outer surface of the side of the second card seat; so that the tractor handrail has a limit locking structure, and the lifting Its own functionality also makes it have a rotary angle adjustment structure, which improves the flexibility of tractor handrail operation.

An orthopedic reduction nail locking device disclosed in the invention comprises a fixing plate, a sliding groove is fixed to the inner side face of the fixing plate, a sliding block is slidably installed on the inner side face of the sliding groove, a threaded through hole is formed in the inner side face of the sliding block, the inner side face of the threaded through hole is in threaded connection with a bone nail, a blind hole is formed in the inner side face of the bone nail, and a column tube is fixed to the upper end face of the bone nail; and the outer surface of the column tube is in threaded connection with a gasket, a convex nut and a concave nut, the rear end face of the fixing plate is in threaded connection with a cover plate, the two sides of the fixing plate are in threaded connection with fixing blocks, buckles shaped like a Chinese character 'ri' are sewn to one sides of the fixing blocks, and bandages are sewn to the lower end faces of the fixing blocks. Medical staff can conveniently move bone nails, alignment of the fracture ends of the bones of a patient is facilitated, the upper ends of the bone nails can be firmly fixed and are not prone to loosening, the surface of the fixing plate is not prone to being scratched, meanwhile, the situation that the bone nails pull the bones of the patient, and consequently the patient feels painful can be avoided, rehabilitation of the patient is facilitated, and the applicability is high.

A belt head has a belt head, the belt head has a belt head body, the belt head body is connected with a belt connecting piece, the belt connecting piece has a belt passing opening, the belt connecting piece is opposite to the belt passing opening, and there is another belt passing opening, the belt The connecting part has a belt fixing rod, the belt fixing rod is connected with a belt fixing rod shaft, and the belt fixing rod is connected with a belt fixing rod handle. The invention has the advantages that a belt can be adapted to the needs of users with different waists in a large range, the specific use length of the belt can be adjusted, the comfort of the belt can be improved, the convenience of the belt can be improved, frequent replacement of the belt can be avoided, and the use of the belt can be saved. Quantity and other advantages.

The invention discloses inner diameter synchronous measuring equipment for bearing inner ring processing, which comprises a first mounting rack and a second mounting rack, and is characterized in that the first mounting rack is arranged on one side of the second mounting rack, and the first mounting rack and the second mounting rack are movably connected through a telescopic rod; the inner side of the first mounting frame and the inner side of the second mounting frame are sleeved with first telescopic plates, a butt joint plug is arranged on one side of the first mounting frame, an electric push column is arranged on one side of a telescopic rod, a rotary clamping piece is arranged at one end of the electric push column, and a buffer sleeve is arranged at the other end of the electric push column; three groups of splicing probes are mounted on one side of the rotary clamping piece in a splicing manner, and a supporting plate is arranged at the lower part of the second mounting frame; the inner diameter synchronous measurement equipment for bearing inner ring processing is provided with a rotary probe adjusting structure by utilizing the arrangement of the rotary clamping piece and matching the use of the large, medium and small spliced probes, so that the use flexibility of the inner diameter synchronous measurement equipment for bearing inner ring processing is improved.

The invention provides a preparation method of an electrochemical micro-detection system based on a disposable pipette tip and a lead core electrode array and relates to the preparation method of the electrochemical micro-detection system, aiming at solving the technical problems that a conventional electrochemical detection system is high in preparation cost, and complicated and strict in process, only can be circularly utilized, easily causes secondary pollution and needs more samples to be detected, and an existing electrochemical micro-detection system commonly has a plane structure so that a real reference electrode is difficult to arrange and the accuracy and sensitivity are relatively poor. The preparation method comprises the following steps of: 1, preparing a lead core array; 2, decorating the lead core electrode array; 3, assembling a three-electrode system; 4, preparing an electrolytic cell; and 5, assembling the electrochemical micro-detection system. The invention designs the simple and novel three-dimensional electrochemical micro-detection system based on the disposable pipette tip and a lead core, and the system is uniquely combined with the structure advantages of the real reference electrode; the sensitive detection of micro samples is realized and the accuracy and sensitivity of the electrochemical detection are effectively improved.

The invention discloses a precise and intelligent needle-type water light meter for deep hydration and anti-aging, which includes a water light meter body. And the storage shelf is provided with a fixed shell between the inner and outer walls, the upper surface of the fixed shell is rotatably connected with a transparent cover, the right end of the transparent cover is fixedly connected with a suction head, and one end of the suction head is provided with a filter tube, which is driven by the rotation of the rotating motor. The fixed wheel rotates, so that the driving wheel drives the adjustment rod to rotate, so that the moving tube moves in the connecting tube and pushes the push rod, so that the installation plate and the needle slide on the support rod, so as to realize the function of adjusting the use length of the needle, which can be used on different parts of the skin. Through the fixing of the first fixed cover and the second fixed cover, and then turning the first threaded rod and the second threaded rod, the first push plate and the second push plate can be driven to fix the needle tube and the adjustment mechanism, which can be easily disassembled by the user Cannula and needles.

The invention provides a preparation method of an electrochemical micro-detection system based on a disposable pipette tip and a lead core electrode array and relates to the preparation method of the electrochemical micro-detection system, aiming at solving the technical problems that a conventional electrochemical detection system is high in preparation cost, and complicated and strict in process, only can be circularly utilized, easily causes secondary pollution and needs more samples to be detected, and an existing electrochemical micro-detection system commonly has a plane structure so that a real reference electrode is difficult to arrange and the accuracy and sensitivity are relatively poor. The preparation method comprises the following steps of: 1, preparing a lead core array; 2, decorating the lead core electrode array; 3, assembling a three-electrode system; 4, preparing an electrolytic cell; and 5, assembling the electrochemical micro-detection system. The invention designs the simple and novel three-dimensional electrochemical micro-detection system based on the disposable pipette tip and a lead core, and the system is uniquely combined with the structure advantages of the real reference electrode; the sensitive detection of micro samples is realized and the accuracy and sensitivity of the electrochemical detection are effectively improved.

The invention relates to the technical field of logistics, and especially relates to a portable express packaging device for cross-border logistics. The portable express packaging device for the cross-border logistics comprises an installation support, wherein a second rotary shaft is rotationally arranged at the bottom of the installation support; a roller is coaxially arranged on the second rotary shaft; a packaging bag in the shape of a long barrel is connected to the roller in a winding manner; a battery box is fixedly installed at one side of the installation support; a storage battery isarranged in the battery box; a switch and a conductive wire are connected to the storage battery; a pair of first rotary shafts is symmetrically arranged at the other side of the installation support; a clamping plate is fixedly installed on one rotary shaft; a clamping plate is rotationally connected to the other clamping plate; the packaging bag penetrates through a crack between the pair of clamping plates; and a U-shaped fixed support is fixedly installed on the upper end surface of the installation support. The portable express packaging device for the cross-border logistics is capable of effectively storing the packaging bag, simple and convenient in use process, and compact in structure, occupies less space, and is capable of adjusting the use length of the packaging bag accordingto the size of an object, and more green and environment-friendly.

The invention discloses a hydraulic pulse fatigue test device for an axle comprises a supporting seat and a pulse head, the pulse head is movably installed on the upper portion of the supporting seat, the upper portion of the supporting seat is fixedly sleeved with a gantry fixing frame, the supporting seat comprises a first clamping seat and a second clamping seat, the second clamping seat is movably installed on one side of the first clamping seat, a first telescopic plate is movably connected between the first clamping seat and the second clamping seat in a sleeved mode. Two shaft head clamps are fixedly installed on the upper portion of the supporting seat. A lifting frame is used for driving the pulse head to move downwards, the pulse head is inserted into a circular notch of a gantry fixing frame, one end of the pulse head abuts against an axle, a hydraulic cylinder is matched with an oil pipe to drive the pulse head, and the pulse head conducts testing operation on the axle; by means of the arrangement of the supporting seat and the first telescopic plate, the hydraulic pulsation fatigue test device for the axle is provided with a fixed adjusting structure, so that the hydraulic pulsation fatigue test device is suitable for axles of different models, and the application range is widened.

The invention discloses a protection device for a submersible pump. The protection device comprises a pump body, a protection mechanism, a filtering mechanism and a fixed supporting mechanism. The pump body is connected to an inner cavity of the protection mechanism, a water inlet of the pump body is connected with the filtering mechanism, and the filtering mechanism is connected with three sets of smashing mechanisms. The protection mechanism comprises an upper protection barrel, a lower protection barrel and arc plates, wherein openings are formed in the bottom end of the upper protection barrel and the top end of the lower protection barrel, and arc-shaped clamping grooves allowing the water inlet of the pump body and a water outlet pipe to penetrate through are formed in the side facesof the upper protection barrel and the lower protection barrel. The bottom end of the upper protection barrel and the periphery of the lower protection barrel are each provided with two sets of symmetrically-arranged arc plates in a welded mode, the arc plates of the upper protection barrel and the arc plates of the lower protection barrel are connected and fixed through a plurality of sets of connecting bolts with nuts, and sound absorption layers and sound insulation layers are bonded to inner cavities of the upper protection barrel and the lower protection barrel. The protection device forthe submersible pump not only has good protection and noise reduction effects, but also can perform stable supporting.

The invention discloses a liquid crystal display substrate processing gluing device which comprises a fixed base, a fixed top frame and a gluing head, the fixed top frame is arranged on the upper portion of the fixed base, the gluing head is movably installed between the fixed base and the fixed top frame, and the fixed base is fixedly connected with the fixed top frame. A fixing plate for placing a liquid crystal display substrate is arranged on the outer surface of the upper end of the fixing base, two sets of fixing clamping pieces for clamping the substrate are movably installed on the upper portion of the fixing plate, and a second side frame is installed on the outer surface of one end of the fixing top frame in a spliced mode; a user can rotate the side rotation clamping plate through the rotating cap, so that the use angle of the side rotation clamping plate is adjusted, the rotated side rotation clamping plate can be suitable for a liquid crystal display screen substrate of an arc-shaped structure, the application range of the side rotation clamping plate is widened, meanwhile, the arc-shaped structure at the end of the side rotation clamping plate is utilized, the side rotation clamping plate can be better attached to the arc-shaped liquid crystal display screen substrate, and the use effect of the side rotation clamping plate is improved. And the use effect is improved.

The invention discloses a respiratory intelligent respirator for pediatric internal medicine, which belongs to the field of medical equipment, and comprises a breathing mask, an air intake mask, a lower jaw fixing tray and a "Y"-shaped fixing belt. Both ends and the bottom of the breathing mask are evenly installed with The fixing rings, and the fixing rings at both ends of the breathing mask are equipped with "Y"-shaped fixing belts, the fixing rings at the bottom of the breathing mask are fixed with connecting belts, and one end of the connecting belts is connected with a jaw fixing tray. The invention is equipped with a breathing mask, a lower jaw fixing tray, a tray fixing belt, a connecting belt, an elastic belt, a "Y"-shaped fixing belt, a fixing ring and a silicone sleeve, so that the breathing mask is conveniently placed at the position of the child's mouth and nose, and makes The elastic belt is fixed on the back of the child's head, the chin fixing tray is fixed on the bottom of the child's chin, and the tray fixing belt and the elastic belt are fixed to fully fix the device on the child's face to avoid falling off during use.

The invention discloses a feeding mechanism for a textile machine capable of layered carding and pretreatment of cotton spun yarns, comprising a fixed frame, a first carding plate, a doubling cylinder, a telescopic cutting blade, a threaded rod and a textile machine body. A take-up roller is rotatably connected in the fixed frame, and the cotton spinning yarn body is wound on the take-up roller. The screws in the fixed frame are connected to the first carding plate, and the screws in the fixed frame are connected to the second carding plate. The drive motor is fixed by welding, and the output end of the drive motor is rotatably connected with a fixed shaft, and a transmission belt is meshed and connected with the fixed shaft. The feeding mechanism is provided with a second carding plate, under the action of the first carding plate, the cotton spinning yarn body on the winding roller can be combed in the first stage, and the cotton spinning yarn body after the primary carding passes through the second Under the action of the carding plate, the dispersed secondary carding work can be carried out, which effectively improves the carding efficiency of the cotton spinning yarn and reduces the processing cost at the same time.