231results about How to "Fasten" patented technology

The invention aims at providing an airborne blow-shooting type seed direct seeding device with seeding concentration, adjustable seeding speed and simple structure and a seeding unmanned aerial vehicle thereof. The direct seeding device comprises a bracket (1), a seed box (2), a seed discharging wheel (3) and an air duct (4), wherein the seed box (2) is arranged on the upper part of the bracket; the seed discharging wheel (3) is arranged at the lower side of the seed box (2) and the periphery of the seed discharging wheel (3) is provided with a surrounding disc (5); the air duct (4) is arranged on one side of the seed discharging wheel (3), the outer wall of the seed discharging wheel (3) is provided with a plurality of seed grooves (6), the position of the seed discharging wheel (3) in contact with the air duct (4) is provided with a seed discharging port (7), the seeds in the seed box (2) fall into the seed groove (6), the seed discharging wheel rotates in the surrounding disc and drives the seeds to the seed discharging port, and the airflow inside the air duct (4) blows out the seeds downwards; the seeding unmanned aerial vehicle comprises the equipment described above. The seeding unmanned aerial vehicle is applied in the field of agricultural aviation equipment.

The invention discloses a connecting device for lengthening a handle. The connecting device comprises a fixing sleeve and two connecting sleeves, the fixing sleeve is a hollow cylinder, a retaining plate is respectively arranged at two axial ends of the fixing sleeve, a fixing hole is arranged on each retaining plate, the connecting sleeves are cylinder, and the connecting sleeves can be inserted in the fixing holes of the fixing sleeve. Taper holes are axially arranged at one ends of the connecting sleeves to be used for fixing a rod to be connected, and two rectangular grooves are radially arranged at the other ends of the connecting sleeves and respectively arranged on two sides of the connecting sleeves. Snap joint blocks are arranged in the rectangular grooves, the snap joint blocks are fixed in the rectangular grooves through springs at the bottom, buttons are arranged on one sides of the snap joint blocks close to taper holes, ladder-shaped clamping blocks are arranged on the other sides of the snap joint blocks, and the snap joint blocks, the buttons and the ladder-shaped clamping blocks are integrated. The ladder-shaped clamping blocks can clamp the retaining plates on the fixing sleeve, slope angles of the ladder-shaped clamping blocks are 20 degrees or 30 degrees. The connecting device can be applicable to handles and rods to be connected in various types and sizes, and is simple in structure, convenient to manufacture and strong in applicability.

The invention discloses an electrical cabinet wire duct which comprises a U-shaped wire duct body. The electrical cabinet wire duct is characterized in that a sliding pressure plate is arranged in the wore duct body, a plurality of pull rods are connected to the bottom of the pressure plate, a locking block is connected to one side of the wire duct body and provided with through holes which correspond to the pull rods and allow the pull rods to pass through, the through holes penetrate through the wire duct body, the pull rods slide in the wire duct and the through holes of the locking block, and a protecting soft plate of a U shape is arranged between the pressure plate and the inner side wall of the wire duct body. In the wiring process, a wire is distributed on the protecting soft plate of the U shape, and when the wire is pressed, the pull rods are fixed through the locking block after being tensioned. A claw groove is formed in the end of each pull rod. A handle for pulling the corresponding pull rod is arranged at the end of each pull rod. The pressure plate can be utilized for pressing and fixing the wire in the wire duct, the wire duct can be used repeatedly, the waste of wire ties is avoided, and then waste of time for threading the wire ties is avoided.

The invention belongs to clamping devices and particularly discloses a clamping device convenient to adjust. The clamping device comprises pressing plates, threaded shafts, upper nuts, lower nuts, elastic pieces and a supporting plate. A plurality of position adjusting holes are formed in the pressing plates so that the clamping width of a pressing disc can be adjusted conveniently. Each threaded shaft is provided with a baffle used for preventing the threaded shaft from falling. A lead screw is arranged at the upper end of each threaded shaft, so that the lower end of the threaded shaft is a fixed end, and the upper end of the threaded shaft is an adjusting end. The elastic pieces are located between the supporting plate and the pressing plates in a sleeving mode. A groove is formed in the lower end of the supporting plate. The threaded shafts sequentially penetrate through the groove, the position adjusting holes, the lower nuts and the upper nuts from bottom to top. The lower ends of the threaded shafts can move in the groove. By means of the clamping device, the problems that a pressing disc clamping device is large in size and inconvenient to adjust are solved. Compared with an existing pressing disc clamping device, the clamping device convenient to adjust is small in size, simple in structure and firm in clamping, the transverse position and the longitudinal position are convenient to adjust, and the clamping process is simple and fast.

The invention provides a fastener opened from a single side. The fastener comprises a fastener frame, a fastener tongue pivotally jointed with the fastener frame, a relief cover movably arranged on the fastener tongue, and an elastic piece arranged between the relief cover and the fastener tongue, wherein the fastener frame is provided with a first hook block; the relief cover is provided with a second hook block corresponding to the first hook block; one end of the elastic piece pushes against the fastener tongue, while the other end of the elastic piece pushes against the relief cover, and when the fastener tongue is fastened to the fastener frame, the relief cover is pushed by the elastic piece, so that the second hook block is fastened to the first hook block; and the movement strokes of the relief cover comprises a position enabling the second hook block to be fastened to the first hook block and a position enabling the second hook block to be separated from the first hook block. The invention also provides a watch with the fastener. The relief cover is pushed by the elastic piece, so that a second component on the relief cover is fastened to a second component of the fastener frame, and therefore, the fastening of the fastener tongue and the fastener frame is realized; unfastening can be realized just by pushing the relief cover to move towards one side; and both wearing and unfastening are convenient.

The invention discloses a novel electromagnetic die which comprises an upper die, a lower die, an ejection device and a mode locking device. The upper die is arranged on the upper side of the lower die, the ejection device comprises an electromagnet I, a magnet I, an ejection rod, a switch I and a supporting plate, the mode locking device comprises an electromagnet II, a magnet II, a supporting base and a switch II, the ejection device uses repulsive force generated by the electromagnet I and the magnet I, and the mode locking device uses magnetic force generated by the electromagnet II and the magnet II. The novel electromagnetic die has the beneficial effects that the electromagnetic strong attraction capacity is used, buckling of the upper die and the lower die is achieved, teeth arranged on the upper die and grooves arranged in the lower die are matched, and transverse displacement between the dies is avoided; and through simple mechanical matching, the magnetic force generated bythe electromagnets and the magnets are subject to mutual exclusion, workpieces are ejected out further, deformation and die damage are avoided, the die accuracy is guaranteed, and the production requirement is met.

The invention discloses a flood control box for a water conservancy project, and particularly relates to the technical field of water conservancy projects. The flood control box comprises a box body,four clamping holes are formed in the top of the box body, the four clamping holes are formed in the four corners of the top of the box body, a first rubber pad layer is fixedly arranged on the bottomwall of the box body, supporting feet are connected to the bottom of the box body, threads are arranged on the top ends of the supporting feet, the top ends of the supporting feet are inserted into the box body, the supporting feet are detachably connected with the box body through threads, a clamping groove is formed in one side of the box body, a second rubber pad layer is arranged on the otherside of the box body, and clamping blocks are arranged on the second rubber pad layer. Seal of transverse and longitudinal connection of the flood control box can be reinforced at the same time, theclamping blocks and the clamping grooves are matched, the supporting feet and the clamping holes are matched, the gap of the connection between box bodies can be small, matching is fastened, the floodcontrol box is not prone to sweeping down, a built flood control dike is not prone to collapsing, and safety is improved.

The invention belongs to the technical field of forestry planting, and specifically discloses a high-efficiency grafting method for torreya grandis. The method comprises the following steps: (1) performing preparation: selecting seedlings of 2-3-year-old torreya grandis at late February to late March, and cutting off parts located 5-10 cm above rhizomes of the seedlings of the torreya grandis to obtain a rootstock; and cutting 1-1.5-year-old tender branches from an excellent-quality mother tree as scions, wherein a length of each scion is 6-10 cm; (2) treating the rootstock: performing vertically-downward chopping from the middle part of a cross section of the rootstock by using a cleft grafting knife, wherein a length of a chopped opening is 4-5 cm; (3) treating the scions: reserving 6-8leaves of the top of each scion, removing the rest, and cutting the lower part of each scion into a wedge shape; (4) binding up the scions: inserting the scions into the chopped openings of the rootstock, fastening the scions and the rootstock by using a clamping binding device, and performing winding by using a film; and (5) performing management after grafting: performing fertilization on grafted seedlings every 3-4 days, applying a long-acting insecticide and bactericide, and building a sunshade shed with light transmittance of 20%-30%. The method disclosed by the invention has high efficiency of grafting, and the grafted torreya grandis has a higher survival rate.

The invention provides a rapid cleaning device of a cement barrel for a building. The device comprises a base, a cement barrel fixing assembly, a cleaning fluid storage tank, a storage cavity, and a storage battery pack; and a universal wheel is arranged at the bottom of the base, a traction hook is welded to the surface of one side of the base, the cleaning fluid storage tank is arranged on one side above the base, a conveying belt is arranged at the position, on one side of the cleaning fluid storage tank, above the base through a mounting frame, the surface of the conveying belt is providedwith the cement barrel fixing assembly through bolts, a first installation support column, a second installation support column, and a third installation support column are sequentially arranged at the positions, on one side of the conveying belt, above the base, and sliding rails are arranged on the surfaces of the first installation support column and the third installation support column respectively. According to the device, through arranging a series of structures, the device has the characteristics of being automatic in operation, high in cleaning efficiency, good in cleaning effect andthe like.

The invention discloses a filter plate cleaning device with a good cleaning effect. The filter plate cleaning device with the good cleaning effect comprises a baseplate, wherein a groove is formed inthe upper surface of the baseplate; a sliding bar is arranged inside the groove; the left end and right end of the sliding bar are respectively fixed and connected to the left side surface and right side surface of the inner wall of the groove; the surface of the sliding bar is in sleeve connection with a sliding sleeve; and the upper surface of the sliding sleeve is fixedly connected to a connecting block. The filter plate cleaning device with the good cleaning effect has the beneficial effects that a motor and a first elastic device are arranged; an output shaft of the motor rotates to drivea half gear to rotate; when the half gear rotates to be engaged with a toothed bar, the toothed bar pushes a box to move toward the left; when the half gear rotates to be separated from the toothed bar, a first spring in the first elastic device pushes the box to move toward the right by utilizing per se elastic force, therefore, the box can be directly driven to move circularly left and right and shake, and a filter plate in the box shakes in a cleaning solution to be cleaned; and the filter plate cleaning device with the good cleaning effect has a relatively good cleaning effect on the filter plate and brings convenience to people when a purifier is in use.

The invention relates to the technical field of lightgage steel joist packaging equipment, in particular to a lightgage steel joist fastening mechanism, a control method and a packaging machine. The lightgage steel joist fastening mechanism comprises a first conveying device, a hooking assembly, and a blocking device; the blocking device and an execution part are sequentially spaced in the conveying direction of the first conveying device, when the blocking device is in the avoiding state, the first conveying device conveys a first steel joist to the position of the execution part, the fallingexecution part can block the steel joist, when the blocking device is in the blocking state, the work end of the blocking device can block the second steel joist, and when the execution part rises, the first steel joist is lifted towards the side of the execution part, the first steel joist is turned over and buckled on the second steel joist. The control method is applied to the lightgage steeljoist fastening mechanism; the packaging machine comprises the lightgage steel joist fastening mechanism; and according to the lightgage steel joist fastening mechanism, the control method and the packaging machine, labor intensity is reduced, manpower is saved, and efficiency is higher.

The invention provides a connection device with adjustable length, which includes two sets of clamps and an adjusting device, the adjusting device is arranged on the opposite inner side of the two sets of clamps, and the clamps include a clamping plate, an adjusting bolt and a fixing plate. The adjusting bolt is placed on the outer panel of the clamping plate, and the fixing plate is arranged on the top of the adjusting bolt. The side is provided with an accommodating hole, and a spring is arranged in the accommodating hole, and the spring is connected to the telescopic mandrel, and the extension direction of the opposite side of the fixed rod is provided with a structural hole cooperating with the telescopic mandrel. The invention has the beneficial effects of simple structure and convenient operation, which not only saves cost, but also has relatively high connection strength.

The invention provides a multifunctional electric rail. The multifunctional electric rail comprises vertical rails, a transverse rail, a slide way rail, stand columns, rotary shafts, diagonal draw bars, bases, clamping frames, light reflection strips, caution lamps, lead wires, photovoltaic plates, supporting rods, ventilation grooves and water leaking holes, wherein the vertical rails are fixed between the stand columns by the transverse rail and the slide way rails; the vertical rails are reinforced and fixed by the diagonal draw bars connected with the rotary shafts; the stand columns are mounted in the bases at the upper part of the ground; the clamping frames are used for fixedly connecting the slide way rail and the stand columns; the light reflection strips are adhered to the outer side surfaces of the vertical rails; and the caution lamps are connected with the bases and the photovoltaic plates by the lead wires. The bases, the clamping frames, the photovoltaic plates and the caution lamps are arranged so that the multifunctional property of the electric rail is easy to realize; and the multifunctional electric rail is simple and convenient to mount and convenient to adjust, has a strong caution effect and a long service life, and is convenient for market popularization and application.

The invention discloses an expansion bolt convenient to use. The expansion bolt comprises a bolt body, a lower sleeve, an upper sleeve and a bolt tail body, wherein the top of the bolt body is connected with a bolt tail joint; the bolt tail body is welded at the top of the bolt tail joint; the top of the bolt tail body is connected with a bolt tail; a nut sleeves on the front end of the bolt body; the upper sleeve and the lower sleeve are respectively mounted at the middle part of the bolt body; the middle parts of the upper and lower sleeves are fixed through spring washers; forked plates are respectively arranged at the tail parts of the upper and lower sleeves. The expansion bolt convenient to use is simple in structure and convenient to install; the expansion bolt is integrally provided with separated sleeves which are respectively the upper sleeve and the lower sleeve; therefore, on one hand, a stabilization effect can be effectively played; on the other hand, by the separated sleeves, a user can easily expand the sleeves by just simply screwing the bolt, so that the sleeves can be inserted into a wall and the bolt can be fixed more firmly.

The invention discloses a cable joint and a connecting method thereof. The cable joint comprises an eccentric pipe and a sealing portion, wherein oil pipes are fixedly connected to two ends of the eccentric pipe respectively, and a U-shaped notch is arranged in a side surface of the eccentric pipe; the sealing portion is fixedly connected into the U-shaped notch, cables penetrate into the two sides of the sealing portion respectively, and cable cores of the cables are hinged in an internal portion of the sealing portion. The sealing portion comprises a sealing short section, a joint, a card sleeve and a pressing head, wherein a cavity is arranged in the sealing short section, and internal threads are processed at two ends of the cavity respectively; a through hole is arranged in the joint, and the joint is connected to two ends of the sealing short section through threads; the card sleeve is conical, one end with a smaller diameter of the card sleeve is clamped into the through hole,and one end with the larger diameter is exposed out of a portion, away from a sealing short section end surface, of the joint; and the pressing head is in threaded connection with the joint. The invention aims at solving problems of easy collision, easy disconnection, poor sealing performance, a complex binding process and the like during connection of cables used in oil field wells at present.

The invention belongs to the technical field of hygienic products, and particularly relates to a recyclable environment-friendly diaper. The diaper comprises a diaper body, and the diaper body comprises a urine groove, an excrement groove in the rear side of the urine groove, a urine storage layer below the urine groove and the excrement groove, waist surrounding fixing belts and a fixing waistband; the waist surrounding fixing belts are arranged on the front side and the rear side of the urine storage layer, and the fixing waistband is used for fixing the waist surrounding fixing belts; a urine leakage opening is formed in the bottom of the urine groove, the urine leakage opening is communicated with the urine storage layer, and a urine discharging channel is formed in the lower side of the urine storage layer; a toilet paper fixing belt used for fixing disposable toilet paper is arranged in the excrement groove. The diaper can solve the problems that an existing diaper needs to be frequently replaced, the air permeability is not good, the environment is polluted, the cost is high, and excrement is not easy to clean away.

The invention discloses a battery charging device of a new energy electric car, which comprises a pile body and a charging gun; one side of the pile body is fixed with an insert opening, and an outputend of the charging gun is plugged in the insert opening; outside of the insert opening is provided with a fixing device, and the fixing device comprises an installing frame, a switch device, an installing plate, an adjusting device and a fixing plate; the installing frame is located at outside of the insert opening, and the installing frame is fixed with the inner wall of the pile body; the switch device is fixed at one side of the installing frame, the output end of the switch device is fixed with the installing plate; the adjusting device is fixed with one side of the installing plate closing to the installing frame; the adjusting device comprises an adjusting motor, a connecting shaft, a buffer device and a fixing head; the adjusting motor is fixed on the installing plate. Through thefixing device, the charging gun and the insert opening can be stably fixed, so as to prevent the charging gun from dropping from the insert opening; the charging gun can be well protected.

The invention discloses a cotton water-cultivating device. The device comprises a cultivation basin, and the cultivation basin is filled with a cultivation solution; a basin cover covers a basin opening of the cultivation basin; the basin cover is provided with a cotton seedling placing hole and a vent hole which are communicated with the cultivation basin, the placing hole is internally detachably provided with a fixed cover in an inserted mode, and a fixed cover detachably covers stems of cotton seedlings; the basin cover is further provided with a crack, and the crack is communicated with the placing hole and the edge of the basin cover. Through the arrangement of the crack, the cotton seedling placing hole is communicated with the edge of the basin cover, the damage of the basin cover to root systems is avoided, the basin cover is provided with the vent hole, the purpose that a nutrition solution is communicated with outside air is guaranteed, oxygen in the nutrition solution can be supplemented, and the problems that the root systems are ageing and discolored due to poor ventilation are solved. The fixed cover used for fixing the cotton seedlings is arranged in the placing hole, and the fixed cover can firmly fix the cotton seedlings to solve the problem that the water-cultivating cotton seedlings are prone to lodging, and further the consistency of the growth of the cotton seedlings is guaranteed.