61results about How to "Adjust extension length" patented technology

The invention relates to a power connection fitting for a high-voltage overhead transmission line, which comprises fixing frames, connecting frames and a connecting device, and the fixing frames are of annular structures, the connecting frames are uniformly mounted on the outer sides of the fixing frames, the connecting frames are of cylindrical hollow structures, and the connecting device is mounted between the outer sides of the connecting frames. The problems are solved that when an existing connection fitting is used, the connection effect is poor, use is inconvenient, the extension lengthof an adjusting rod cannot be effectively adjusted, then power transmission lines with different intervals cannot be used, the adaptation effect of the connection fitting is poor, and when the existing connection fitting is used, the connection fitting is poor in buffering effect and cannot effectively buffer vibration generated by a wire, so that a power transmission line is prone to generate alarge damping effect, and the conveying effect of the power transmission line is affected.

The invention discloses a special medical facility for ophthalmological treatment, which comprises a support table, a limited slot, a first support pillar, a first electric drive pusher, a second electric drive pusher, a liquid pump, a disinfectant tank, a support plate, a magnifying lens, an infusion hose, a washing head, a cover plate, an extension support plate, a limited block, a tool drawer,a handle, a second support pillar, a threaded hole, a limited slot, a limited gate road, a first limited through hole, a second limited through hole and a limited slot hole. According to the special medical facility for ophthalmological treatment, the cover plate is firstly opened, a patient to be treated lies in the limited slot, and the extension elongation of the extension support plate is appropriately adjusted according to the height of the patient to be treated; then the first electric drive pusher and the second electric drive pusher are started to adjust the height and the extension elongation of the magnifying lens until the magnifying lens is adjusted to be in a position up-and-down vertical to an eye of the patient to be treated; finally, the tool drawer is pulled out through the handle, a corresponding treatment tool is taken out from the tool drawer, and a therapist can smoothly get the washing head and start the liquid pump.

The invention discloses an oil pollution clearing device for mechanical equipment. The oil pollution clearing device comprises a handle; a through hole is formed in one end of the handle; an air box is slidably mounted in the through hole; a cavity is formed in the air box; a rotating hole is formed in the inner wall of one side of the cavity; a sleeve is rotatably mounted in the rotating hole, and one end of the sleeve extends to the outer side of the handle and is arranged to be in a closed state; a plurality of brush bristles are fixedly mounted on the outer side of the sleeve; a pluralityof communicating holes are formed in the inner wall of the sleeve; mounting rods are welded to the inner walls of the top and the bottom of the through hole correspondingly; motors are mounted on onesides of the mounting rods, and gears are fixedly mounted on output shafts of the motors; and a rack is arranged on the outer side of the sleeve, and the two gears are engaged with the rack. The oil pollution clearing device is reasonable in design and high in practicability, the distance between the brush bristles and the handle is convenient to adjust, the to-be-washed part of the mechanical equipment can be dried, sewage at the to-be-washed part can be cleared, various clearing functions are achieved, and using is facilitated.

The invention discloses an emergency stretcher for an ambulance, which comprises a stretcher main body, wherein a platform for carrying a patient is arranged on the stretcher main body, folding support leg devices are arranged at the periphery of the bottom of the stretcher main body, upper wheel devices are respectively arranged at the front and rear ends of the bottom of the stretcher main body,the two sides of the stretcher main body are provided with foldable guardrail devices, the stretcher main body is provided with an adjustable waistband device, one side of the front end of the stretcher main body is provided with a telescopic transfusion frame device, and the front and rear ends of the stretcher main body are respectively provided with a stretcher handle. The stretcher has the advantages that the structure is simple and the practicability is strong.

The invention discloses a reinforcement cage machining die, and relates to the technical field of reinforcement cage machining. The reinforcement cage machining die comprises a base, two supporting blocks are fixedly connected to a top surface of the base, an electric control cabinet is fixedly connected to the side walls of the supporting blocks, arc-shaped sliding rails are fixedly connected tothe tops of the supporting blocks, rotating rings are rotationally connected to inner surfaces of the arc-shaped sliding rails, four connecting rods are fixedly connected to inner surfaces of the rotating rings, a center block is fixedly connected to one end of each of the four connecting rods, drive rods are fixedly connected to inner surfaces of two center blocks, and side walls of the arc-shaped slide rails are fixedly connected with an adjusting mechanism. By arranging a stretching mechanism, an inner sliding block pushes an outer sliding block to pull fixed rings when a main reinforcementmoves to the top of the rotating ring, the fixed rings are two ends of the main reinforcement are far away from each other to realize the stretching effect, the main reinforcement is prevented from bending, the adjusting mechanism can realize the effect of adjusting the amplitude of stretching the main reinforcement so as to be suitable for the main reinforcements of different specifications.

The invention relates to the field of child safety seats for automobiles, and especially relates to a 360-degree rotating child safety seat for an automobile. The 360-degree rotating child safety seatfor the automobile includes a seat body and a base. The seat body is disposed above the base; a rotation regulation mechanism is disposed between the seat body and the base; the rotation regulation mechanism includes a rotating shaft and a rotating disc; the rotating disc and the seat body are fixed to the rotating shaft; the lower end of the rotating shaft is rotatably connected to the base to allow the seat body to rotate on the base; and a locking device used for locking a position of the seat body is disposed between the rotating disc and the base. The 360-degree rotating child safety seat for the automobile provided by the invention can simply and reliably achieve 360-degree rotation of the seat body by the rotation regulation mechanism, can be stopped and locked at a suitable position by the locking device, and is convenient for parents to face a child and take out the child from and put the child in the child safety seat beside an automobile door, or to take care of the child in the child safety seat in the next seat.

The invention provides a double-station small-sized transformer tape winding machine and an operation method thereof. The machine comprises a winding machine casing, a rotating disk is installed on the front end surface of the winding machine casing, and the rotating disk is connected with a main motor arranged inside the winding machine casing. A first mounting seat and a second mounting seat aremounted on the rotating disk, wherein the first mounting seat is mounted with a first rotating shaft seat for mounting a transformer, and the second mounting seat is mounted with a second rotating shaft seat for mounting the transformer; A tape winding device for supplying adhesive tape is arranged at the top of one side of the rotating disk. The other side of the rotating disk is provided with an adhesive tape cutting device. The winding machine adopts the way of double-station operation, alternately realizes the automatic feeding of transformer components, and automatically realizes the conversion of station, and realizes the automatic cutting of adhesive tape, thus greatly improves the winding efficiency of transformer adhesive tape.

The invention discloses a building outer wall surface drilling device for constructional engineering. The building outer wall surface perforating device comprises a base and a drilling machine body, moving wheels are arranged at the bottom of the base, supporting stabilizing mechanisms are arranged on the two sides of the base, a fixing cylinder is fixedly connected to the upper end of the base, a threaded lifting sleeve is slidably inserted into the inner side of the fixing cylinder, a lifting mechanism used for driving the threaded lifting sleeve to ascend and descend is arranged on the inner side of the fixing cylinder, a fixing frame is fixedly connected to the upper end of the threaded lifting sleeve, a fixing disc is fixedly connected to the upper end of the fixing frame, a rotating top seat is arranged above the fixing disc, a rotating groove matched with the fixing disc is formed in the lower end of the rotating top seat, and the fixing disc is rotationally connected into the rotating groove. The building outer wall surface drilling device is simple in structure, convenient to implement, capable of greatly improving the working efficiency of drilling, capable of adjusting the drilling height, direction, angle and depth, high in applicability and flexible and convenient to use.

The invention discloses a multifunctional test bench for a chip. The multifunctional test bench comprises a test bench and an extrusion plate, wherein a groove is formed in the middle of the upper surface of the top of the test bench; a detection plate is arranged in the groove; an insertion rod is arranged in the middle of the bottom surface of the test bench; a connection ring is arranged at thebottom end of the insertion rod; a connection block is mounted in the middle of the bottom surface of the extrusion plate; and limiting plates are arranged at positions, close to two sides, in the extrusion plate; and a detector is mounted on the rear surface of the extrusion plate. According to the multifunctional test bench for the chip, the chip can be limited through the limiting plates, so that the chip is prevented from being cracked by the extrusion plate due to a mechanical error; through springs and the insertion rod, the chip can be separated and taken out from the test bench; and the whole test bench is simple in structure, relatively practical and suitable for popularization.

The invention discloses a working method of a reinforcement cage machining die, and relates to the technical field of reinforcement cage machining. A base is included. The top face of the base is fixedly connected with two supporting blocks, the side walls of the supporting blocks are fixedly connected with an electric cabinet, the tops of the supporting blocks are fixedly connected with arc-shaped sliding rails, the inner surfaces of the arc-shaped sliding rails are rotationally connected with rotary rings, the inner surface of each rotary ring is fixedly connected with four connecting rods,one ends of the four connecting rods are fixedly connected with center blocks, the inner surfaces of the two center blocks are fixedly connected with a transmission rod, and the side walls of the arc-shaped sliding rails are fixedly connected with adjusting mechanisms. Through the arrangement of stretching mechanisms, when main ribs move to the tops of the rotary rings, inner sliding blocks push outer sliding blocks to pull fixing rings based on the lever principle, the fixing rings at the two ends of the main ribs are away from each other to achieve a stretching effect, the main ribs are prevented from being bent, the adjusting mechanisms can adjust and stretch the amplitude of the main ribs, and adaptation to main ribs of different specifications is facilitated.

A rock shearing fracture surface boundary depicting device and a method are disclosed. A support cylinder, a rotation sleeve and a support seat are included. The support cylinder is installed on the support seat. An operation platform bottom is connected to the support seat. A rock sample is located on an operation platform. A center section of the rotation sleeve is fixedly connected to a vertical rod. The vertical rod is inserted into and is installed on a bearing in the support cylinder. An upper portion of the support cylinder is provided with a rotation bearing. One end of a diagonal rod is connected to the rotation bearing. The other end of the diagonal rod is connected to the rotation sleeve. A horizontal interlocking bar is movably installed in an internal portion of the rotation sleeve. A depicting probe body is connected to a left end of the horizontal interlocking bar. A rotation handle is connected to the rotation bearing of the depicting probe body. An outer cylinder of a paintbrush is connected to a right end of the horizontal interlocking bar. An electronic paintbrush is inserted into the outer cylinder of the paintbrush and is fixed through a rotary knob. An electronic drawing board is arranged below the electronic paintbrush. The electronic drawing board is connected to a computer. By using the device and the method, problems that a personal error of rock shearing surface area calculation is large, operation is difficult and so on can be solved; and procedural depicting of a rock shearing fracture surface is realized.

The invention discloses a rebar height adjustment device for submerged arc stud welding. The rebar height adjustment device comprises a submerged arc stud welding welding gun and a height adjustment box, wherein the submerged arc stud welding welding gun is provided with a height adjustment sliding block; a rebar clamping device is mounted at the front end of the welding gun and comprises a pressure spring, a pressure adjustment block, an insulating spacer, a chuck screw, the height adjustment sliding block and a rebar chuck; the pressure spring, the pressure adjustment block, and the insulating spacer are sequentially connected with the front end of the welding gun; a gland nut is mounted on the chuck screw in a spiral manner; the height adjustment sliding block can be adjusted in a length telescopic manner to drive up-down displacement of the rebar chuck so as to enable the clamped rebar to move up and down; the depth of the cavity of the height adjustment box is greater than the height of a submerged arc stud welding soldering flux box, and the difference value between the depth and the height is equal to the rebar stretching length required by the welding technology. With adoption of the rebar height adjustment device, the step of adjusting the rebar stretching length is simplified, the process of adjusting the rebar hoisting height is eliminated, and the submerged arc stud welding welding efficiency is remarkably improved.

The invention discloses an intelligent construction site detection equipment adjusting structure. The structure comprises a round seat and a rotating assembly, wherein a mounting seat is arranged on the surface of the round seat, a theodolite host is arranged on the surface of the mounting seat, side grooves are uniformly formed in the circumferential side surface of the round seat, adjusting assemblies are arranged in the side grooves, detection assemblies are arranged on the adjusting assemblies, and a stretching assembly is arranged at the bottom of the round seat; the rotating assembly comprises a mounting groove, a first motor, a bevel gear, a bevel fluted disc and a rotating shaft, the mounting groove is formed in one side of the surface of the round seat, the first motor is arranged on the inner side face of the mounting groove, an output shaft of the first motor is fixedly sleeved with the bevel gear, the bevel fluted disc is arranged on the bottom face of the mounting seat, and meshing teeth uniformly distributed on the bevel surface of the bevel tooth disc barrel mesh with the bevel gear. According to the intelligent construction site detection equipment adjusting structure, automatic adjustment can be achieved, meanwhile, whether the intelligent construction site detection equipment adjusting structure is in a horizontal state or not can be automatically detected, the intelligent degree is high, and the practicability is high.

The invention discloses an electric power construction cable laying pipeline dredging device, and relates to the technical field of electric power construction. The electric power construction cable laying pipeline dredging device comprises a dredging rod, cylindrical containing grooves are formed in one end face of the dredging rod, first threaded rings are fixedly installed at openings of the cylindrical containing grooves, second threaded rings are fixedly installed in the middles of the interiors of the cylindrical containing grooves, a threaded rod is in threaded connection with the interiors of the first threaded rings and the second threaded rings, and a disc is fixedly installed on the end face, located on the outer sides of the cylindrical containing grooves, of the threaded rod.According to the electric power construction cable laying pipeline dredging device, through arrangement of a conical drill bit, some high-hardness blockages can be drilled and dredged from the middle,through arrangement of an inclined cutter plate, some high-hardness blockages can be scraped and dredged from the surface, through combined use of a hemispheroid and alloy rods, the blockages can bedredged in a large area, and moreover, the soft blockages on the inner wall of a cable laying pipeline can be cleaned through a scraping plate.

The invention discloses a rebar height adjustment device for submerged arc stud welding. The rebar height adjustment device comprises a submerged arc stud welding welding gun and a height adjustment box, wherein the submerged arc stud welding welding gun is provided with a height adjustment sliding block; a rebar clamping device is mounted at the front end of the welding gun and comprises a pressure spring, a pressure adjustment block, an insulating spacer, a chuck screw, the height adjustment sliding block and a rebar chuck; the pressure spring, the pressure adjustment block, and the insulating spacer are sequentially connected with the front end of the welding gun; a gland nut is mounted on the chuck screw in a spiral manner; the height adjustment sliding block can be adjusted in a length telescopic manner to drive up-down displacement of the rebar chuck so as to enable the clamped rebar to move up and down; the depth of the cavity of the height adjustment box is greater than the height of a submerged arc stud welding soldering flux box, and the difference value between the depth and the height is equal to the rebar stretching length required by the welding technology. With adoption of the rebar height adjustment device, the step of adjusting the rebar stretching length is simplified, the process of adjusting the rebar hoisting height is eliminated, and the submerged arc stud welding welding efficiency is remarkably improved.

The invention discloses a conveniently-used tripod applied to exploration and measurement. The tripod comprises a worktable, wherein the bottom of the worktable is fixedly connected with a columnar support pillar; three grooves arranged at equal distances are formed in the outer surface of the support pillar; the middle part of each groove is fixedly connected with a pin shaft; a sleeve is arranged in each groove; the top end of each sleeve is articulated with each pin shaft; a support rod is arranged in the bottom end of each sleeve; a junction between each sleeve and each support rod is in threaded connection with a screw rod; a columnar containing groove is formed in the top of the worktable; a first through hole is formed in the middle of the inner bottom wall of the containing groove. Through the conveniently-used tripod applied to exploration and measurement, exploration equipment can be effectively placed; the containing groove can be effectively sealed; the pollution of dust and debris to the worktable is effectively avoided; the exploration equipment can be stably placed; the stability is high; the corresponding adjustment can be carried out according to the actual requirements; the tripod is more convenient to use.

The invention discloses a subwoofer for a matrix audio system, and a positioning method, relating to the loudspeaker box field. The subwoofer includes a sound box shell, a closed groove is formed inthe outer side wall, close to the edge, of the sound box shell in a rectangular manner; LED marquee lamps are evenly installed in the groove, a woofer is installed at the position, located on the inner side of the groove, of the outer side wall of the sound box shell, a fluorescent powder coating is arranged at the position, located on the edge of the woofer, of the outer surface of the sound boxshell, and wheels are installed at the positions, close to the four corners, of the bottom of the sound box shell. The attractive appearance of the sound box shell is improved; the subwoofer is morecool while being used at night; meanwhile, when the subwoofer is not used at night, light can be emitted through the fluorescent powder coating to be easily found, the problem that the subwoofer is damaged due to collision at night is avoided, the extension length of the lifting rod can be conveniently adjusted according to the requirements of different users, movement and stable placement of thesound box are facilitated, and then the subwoofer is convenient to carry by the users.

The invention discloses a clitoris adhesion removal surgery operation device and a control method, and relates to the field of surgeries, the clitoris adhesion removal surgery operation device comprises a shell, the left side of the shell is in threaded connection with a screw rod, the outer side of the screw rod is fixedly connected with a knob, the outer side of the knob is provided with antiskid lines, the right end of the screw is rotationally connected with a driving rack, the driving rack is connected with the shell in a left-right sliding manner, gear shafts are symmetrically and fixedly connected to the upper portion and the lower portion in the shell, gears are rotationally connected to the outer sides of the gear shafts and engaged with the driving rack, a lower swing rod is fixedly connected to the right side of the upper gear, and an upper swing rod is fixedly connected to the right side of the lower gear. During use, the extension length of the scalpel can be well adjusted, the adhesion position of the clitoris can be better cut and separated conveniently, in addition, the lips on the two sides of the clitoris can be well clamped through the upper auxiliary device andthe lower auxiliary device, then the skin is separated, the clitoris can be exposed more sufficiently and thoroughly, and the operation is convenient. Great convenience is provided for the operation process, and the use experience is greatly improved.

The invention discloses an intelligent device for ring-groove cutting and stripping of fruit tree epidermis. The device includes a transverse plate, wherein the left and right ends of the upper surface of the transverse plate are all fixed with rotating plates through fastening bolts, and the upper surfaces of the rotating plates are provided with blades; by adjusting the meshing area between an upper insection and a lower insection to adjust the stretching length of the blades, the depth of the fruit tree girdling is adjusted. When the girdling operation on the fruit tree is conducted, a baffle is squeezed to move, so that the edge of the blade is exposed; meanwhile, after the girdling operation on the fruit tree, the baffle is reset under the influence of a spring of a adjusting device of the clapboard, thereby improving the safety of the device for ring-groove cutting and stripping of the fruit tree epidermis. On the basis of different fruit trees, the intersection angle between a rotating plate and the transverse plate is adjusted, therefore the device for ring-groove cutting and stripping of the fruit tree epidermis has a strong adaptability. The side of a handle is provided with an antiskid rubber pad which can increases the comfort of the user. The device for ring-groove cutting and stripping of the fruit tree epidermis has the advantages of a simple structure, low costs and convenient operation, thereby improving the efficiency of ring-groove cutting and stripping of fruit tree epidermis.

The invention relates to the field of sand casting, and discloses a molding sand collecting and cooling device. The molding sand collecting and cooling device comprises a sand bin, a sand conveying pipe and a sand conveying fan. A feeding hopper is arranged on the sand conveying pipe. An air outlet is formed in the top of the sand bin. A feeding device is arranged between the feeding hopper and the sand conveying pipe and comprises a shell and a sand conveying wheel. The sand conveying wheel comprises a rotating shaft and sand conveying blades. A sand conveying channel is arranged at the bottom of the sand conveying wheel and the bottom of the shell. The sand conveying fan and the sand conveying pipe are connected to the two ends of the sand conveying channel correspondingly. The molding sand collecting and cooling device has the following advantages and effects that high-pressure air generated by the sand conveying fan pushes molding sand to enter the sand bin at the high position through the sand conveying pipe to be stored, the conveying height of the molding sand is increased, and heat exchange cooling and dust removal are carried out on the molding sand while cost is reduced; and the sand conveying fan pushes the sand conveying wheel to rotate while conveying the molding sand, the molding sand enters the sand conveying pipe in one direction, splashing of the molding sand at a sand inlet is avoided, and the conveying stability and safety of the molding sand are improved.

The invention discloses a drilling tool with a forcible entry function. The drilling tool comprises a power source, a drill rod, a positioning disc, a drill bit body and an impact rod body, the drill rod is installed at the output end of the power source, the positioning disc is installed at the tail of the drill rod, a positioning column is installed at the center of the lower surface of the positioning disc in a locking mode, a bearing assembly is installed at the bottom of the side wall of the periphery of the positioning column, and a positioning assembly is installed in the middle of the peripheral side wall of the positioning column. The drill bit body and the impact rod body can be quickly mounted and dismounted through the bearing assembly and the positioning assembly, subsequent quick dismounting is facilitated while stable operation of the drill bit body and the impact rod body is guaranteed, the overall machining range of equipment is enlarged, when forcible entry is needed, the impact rod body can be quickly replaced, auxiliary operation can be conducted without the help of external tools, meanwhile, under the cooperation of a diameter expanding assembly, the drilling diameter can be expanded later, the rapid diameter expanding effect is achieved, and the drilling efficiency of the drilling tool is improved.

The invention discloses a contact pressure type disposable hemostix with a spring guide structure, which comprises a blood sampling barrel, a puncture structure, a guide structure and a contact pressure structure, a plurality of through grooves are sequentially formed in the side wall of a guide barrel in the direction away from an opening of the blood sampling barrel, a baffle movably penetrates through any through groove, an extrusion cylinder is movably arranged on the outer side of the guide cylinder in a sleeving mode, and presses the baffles into the guide cylinder and blocks an ejection spring, and extending grooves matched with the baffle is formed in the side wall of the extrusion cylinder. In use, the contact pressure type disposable hemostix realizes the segmented release of the ejection spring through the arrangement of the baffles, the guide cylinder and the extrusion cylinder, so that the ejection spring is released more uniformly and controllably, the extension length of the ejection spring is controlled by selecting different adjusting holes, and different puncture depths can be adjusted according to personal needs, so that the applicability of the whole device is wider.

The invention discloses a backstepping fruit bagging device, and relates to the technical field of agricultural machinery. The backstepping fruit bagging device comprises a first rotating rod, a second rotating rod and a bag, wherein the first rotating rod is rotatably connected with the second rotating rod through a pin, mounting plates are fixedly connected to the top of the first rotating rod and the top of the second rotating rod, and mounting blocks are fixedly connected to the sides, close to each other, of the two mounting plates; and pressure plates are fixedly connected to the bottomsof the two mounting blocks through compression spring rods, and the sides, away from each other, of the two pressure plates are slidably connected to the sides, close to each other, of the two mounting plates. According to the backstepping fruit bagging device, the bag can be positioned through cooperation of the first rotating rod, the second rotating rod, the compression spring rods, the pressure plates, sliding grooves, fixing plates, magnetic plates and magnetic belts, and bagging can be performed conveniently; and the bagging effect can be better through arrangement of adhesive tapes, and good sealing performance, a simple structure and convenient bagging are achieved.

The invention belongs to the technical field of data closed loop systems, and particularly relates to an equipment display device convenient to suspend based on a data closed loop. The device comprises a supporting mechanism, an extension block and a suspension mechanism. An adjusting mechanism is mounted above the supporting mechanism, a shell is fixed to the rear portion of the extension block,and the extension block is located on the outer portion of a rotating groove. A positioning mechanism is arranged on the right side of the suspension mechanism, an outer frame is fixed to the rear portion of the shell, a protective shell is arranged on the left side of the rotating groove, a rotating shaft is connected to the left side of a motor, fan blades are fixed to the lower portion of the rotating shaft, and through holes are formed in the left sides of the fan blades. The equipment display device convenient to suspend based on the data closed loop can bear large impact force and is notprone to being damaged, the height and angle can be adjusted conveniently according to conditions, the structure is flexible, the device can be selected to be placed on a plane or suspended conveniently, use is convenient, little time is consumed for suspending the device, blue light can be blocked, and the body of a user is not prone to being influenced.

The invention relates to chamfering equipment convenient for multi-surface machining for piston machining. The equipment comprises a water containing box body, a base and a threaded fixing block, a water flowing inclined plate is fixed in the water containing box body, a water conveying pipe is arranged below the water flowing inclined plate, the base is located on one side of a water pump, a connecting block is connected to the upper portion of a first fixed-distance rotating mechanism, and a connecting plate is connected to the other end of a first spring. The beneficial effects of the invention are that: for the chamfering equipment convenient for multi-surface machining for piston machining, through the first fixed-distance rotating mechanism, the equipment can perform multi-surface machining on the piston; the equipment can adjust the angle of the grinding disc, so that the equipment can perform multi-angle processing; through the height adjusting mechanism, a worker can conveniently adjust the position of the piston, machining of the equipment is facilitated, the equipment makes continuous contact with the piston, the equipment is convenient to replace the piston, meanwhile,the functions of dust falling and heat dissipation are achieved, the equipment can also reinforce the piston, and the situation that machining is affected due to shaking of the piston in the machiningprocess is prevented.

The invention provides a novel farmland operation machine spraying device. The present invention includes a vehicle body, including a spray assembly installed on the vehicle body, the spray assembly includes a mounting base, and the mounting base is provided with a spray piece, the spray piece includes at least two spray rods, two adjacent spray rods are hinged to each other, One of the spray rods located at the end of the spray part is fixedly connected to the mounting base, and the spray part also includes a spray hose, which is distributed on the spray rod, and one end of the spray hose is used to connect to the water pump; There are spray tables, each spray table is equipped with a number of spray holes, the spray slots are equipped with spray inserts, the spray inserts are provided with control holes, and the two orifices of each control hole are equipped with O-shaped The two opposite side walls of the spray insert are provided with sealing strips, and the sealing strips surround all the O-rings. The spray assembly can adjust the extension length of the spray rod according to different spraying requirements of farmland to meet different spraying requirements.

The invention discloses a multifunctional vegetable cutter which comprises a rack main body, wherein a first gear mechanism, a second gear mechanism and a third gear mechanism are arranged on the rackmain body; a driving motor is arranged on the first gear mechanism, the driving motor is connected to a first pinion, and the first pinion is engaged to a first rack wheel; a power shaft is arrangedon the first rack wheel, and is connected to a main knife rest; a rotating assembly is arranged on the first rack wheel and the rotating assembly comprises a connecting rod, a long pull rod and a steering rod which are connected one another; a wedge plate is arranged on the rack main body, and the long pull rod is hinged to the wedge plate through a pin roll; a transmission rod is arranged on thesteering rod, and the tail end of the transmission rod is connected to a shifting fork plate; the shifting fork plate is movably connected to a linking mechanism, and the linking mechanism is connected to a second gear mechanism; and the second gear mechanism is connected to a third gear mechanism. The multifunctional vegetable cutter provided by the invention is simple in structure and convenientto clean, and can achieve the functions of stripping, shredding, slicing and rubbing and adjusting the cutting thickness degree without replacing a tool.