77results about How to "Improve retracting efficiency" patented technology

The invention discloses an automatic agricultural spraying machine which comprises a transport unit, a spraying device and a water pipe reeling-unreeling device; the spraying device comprises a spraying base, a column, a spraying support, two pipe arms, two spraying pipes, a flow splitting pipe and a water inlet pipe, wherein the spraying base is installed on the transport unit so as to be carried by the transport unit to travel, the water pipe reeling-unreeling device comprises a reeling-unreeling base, a water pipe reeling-unreeling shaft and a water inlet connector; the water inlet connector is communicated with a water guide chamber of the water pipe reeling-unreeling shaft, the water guide chamber is connected with the other end of a water pipe through a water pipe connector, the water pipe is reeled on the water pipe reeling-unreeling shaft, and the other end of the water pipe is connected with the water inlet pipe of the spraying device. According to the automatic agricultural spraying machine, the transport unit is used for delivering the spraying device, the water pipe reeling-unreeling device is used for automatically controlling reeling and unreeling of the water pipe, and the spraying device is used for automatically controlling the spraying pipes to rotate and sway vertically and laterally, thus the automatic agricultural spraying machine can spray liquid in all directions to crops, and high automation level and a good spraying effect can be achieved.

The invention relates to a rocking arm-type undercarriage, which belongs to the technical field of aviation helicopter and undercarriage. The rocking arm-type undercarriage is characterized by comprising a folding and unfolding mechanism (4) capable of being a linkage mechanism with a folding and unfolding actuator cylinder or the folding and unfolding actuator cylinder; a circular tube joint (5) hinged to an undercarriage body through a fork-form joint; and a buffer (2) having an active telescoping function. The undercarriage can realize bidirectional folding and unfolding. The rocking arm-type undercarriage has the characteristics that 1)through the contraction motion of the buffer having the active telescoping function, a rocking arm is driven for winding around a transverse tube of the circular tube joint to rotate, the undercarriage is upwardly folded; in addition, the circular tube joint and the rocking arm are driven through the motion of the folding and unfolding mechanism for winding around the undercarriage body to rotate, and the undercarriage is inwardly folded, and the folding process and unfolding process are opposite. The rocking arm-type undercarriage can realize a folding and unfolding design of a toe out-shaped large structural size rocking arm type undercarriage in a small folding and unfolding space, structure is compact, requirements for folding and unfolding space are low, folding and unfolding efficiency is high, rotation of the rocking arm at two directions can be realized by a circular tube joint design, and the transverse tube is not required, so that weight is conveniently controlled.

The invention provides a conveyer with a stretchable and retractable conveying arm. The conveyer with the stretchable and retractable conveying arm comprises a hull base, a portal frame, a winch and the stretchable and retractable conveying arm. The conveyer with the stretchable and retractable conveying arm is characterized in that steel wire rope lantern rings are arranged on the two sides of the top end of the portal frame, each lantern ring is connected with steel wire rope lifting points on the two sides of the stretchable and retractable conveying arm through fixing steel wire ropes, the stretchable and retractable conveying arm conducts stretching and retracting through a scissor fork hydraulic stretching and retracting mechanism, scissor fork mechanisms are arranged on the two sides of a scissor fork arm rack, hinge joint of each scissor fork mechanism is achieved through steel plates and shafts, one end of a tail fixing device is connected with the scissor fork arm rack and multi-level hydraulic oil cylinders, and the multi-level hydraulic oil cylinders are assembled in an arm rack frame. The conveyer with the stretchable and retractable conveying arm has the characteristic that the conveying arm can be retracted. Besides, when the conveying arm is stretched and retracted, the influence on the balance performance of a hull is little, the dead load of the conveying arm is small, the stretching distance is long, the transmission efficiency is high, and the space occupied by the conveying arm is small after the conveying arm is retracted; the conveyer with the stretchable and retractable conveying arm is stable in work and high in safety; and the conveying angle of the conveyer can be adjusted, and therefore the conveyer with the stretchable and retractable conveying arm is suitable for sand discharge on different working conditions.

The invention discloses a water pipe retractable device, which comprises: a base; a water pipe retractable shaft, which is erected on the base and driven to rotate by a retractable driving mechanism; The water chamber is provided with a water pipe joint connected to one end of the water pipe; the water inlet joint, the end of the water pipe retracting shaft provided with the water guide chamber is connected to the water inlet joint in a rotatable manner; and the swing pipe device includes: a bracket, which erected on the base; the swing tube guide rail, which is erected on the bracket; the sliding seat, which is arranged on the swing tube guide rail and driven by a swing tube driving mechanism to slide; and two guide rollers, the two guide rollers are erected in parallel on the sliding seat. The invention can automatically realize the retracting and unwinding of the water pipe, and the pipe swing device can make the water pipe neatly rolled up on the water pipe retracting shaft or neatly released in layers, so as to effectively improve the retracting efficiency of the water pipe and reduce the labor of workers. strength.

The invention discloses a transportation device for physical education instruments, relating to the technical field of physical education. The transportation device comprises a large-sized ball placement tank, a racket placement tank and a small-sized ball placement tank, wherein universal wheels are arranged at the bottoms of the three placement tanks, and the three placement tanks are detachablyconnected; the large-sized ball placement tank comprises a first tank body and a plurality of ball body channels, ball body inlets and ball body outlets are formed in two sides of the first tank body, and a cover plate is arranged at each ball body outlet; the racket placement tank comprises a second tank body, a lifting mechanism, a supporting box and a lifting mechanism controller are arrangedin the second tank body, the lifting mechanism is mounted at the bottom of the second tank body, the supporting box is mounted at the upper end of the lifting mechanism, and a plurality of adjustableracket sleeves are arranged in the supporting box; and the small-sized ball placement tank comprises a third tank body, and a plurality of small-sized ball placement cylinders are arranged in the third tank body. The transportation device can be used for conveniently and simultaneously placing different types of physical instruments in different sites, so that the placing efficiency is improved; and different types of rackets can be conveniently placed.

The invention discloses a retractable CT (Computerized Tomography) measuring rod and a measuring method thereof. The measuring rod comprises an outer rod body, a middle rod body and an inner rod body;a motor is fixed on a bottom surface at the interior of the outer rod body; a bevel gear I is fixed on an end part of an output shaft of the motor; the bevel gear I is meshed with a bevel gear II; the bevel gear II is fixedly sleeved on a middle end of a rotating shaft; both ends of the rotating shaft are rotatably connected with a bearing seat I; the bearing seat I is fixed on an inner wall of the outer rod body; a bevel gear III is fixed on an end part of the rotating shaft; the bevel gear III is meshed with a bevel gear IV; the bevel gear IV is fixedly sleeved on a bottom end of a lead screw; two ends of the lead screw are respectively and rotatably disposed on a bearing seat II; and the bearing seat II is further fixed on the inner wall of the outer rod body. According to the retractable CT (Computerized Tomography) measuring rod and the measuring method thereof disclosed by the invention, by disposing the lead screw, a lead screw sleeve, a guide rail, a roller, a pulley I, a pulley II, a pothook and a steel wire rope, the problems that the rods are easy to incline and low in retraction efficiency when the conventional CT measuring rods are spliced are solved.

The invention relates to a sectional rolling curtain type internal heat preservation device for solar greenhouse.The sectional rolling curtain type internal heat preservation device includes a motor Iand a motor II.When a curtain is unrolled, the motor I drives a rope-coilling shaft to rotate through the transmission of a motor main belt I; a traction rope is twined on the rope-coiling shaft; thetraction rope pulls a heat preservation quilt II and a heat preservation quilt III twined on an upper scroll so that the heat preservation quilt II and the heat preservation quilt III spread; the spreading of the heat preservation quilt II and the heat preservation quilt III spread drives the upper scroll to rotate; the rotation of the rope-coilling shaft and the upper scroll are driven through aside main belt, and a side scroll I and a side scroll II are respectively driven to rotate; a heat preservation quilt I and a heat preservation quilt IV twined on the side scroll I and the side scroll II are gradually spread; when the heat preservation quilt I, the heat preservation quilt II, the heat preservation quilt III and the heat preservation quilt IV are completely spread, the curtain isunrolled; when the curtain is unrolled, the motor II is started and the motor I is turned off.The device provided by the invention has the advantages of reducing influence of external factors such asthe environment, reducing the load of an active shaft of traditional internal heat preservation quilts through dividing a heat preservation quilt into four parts, improving retracting and releasing efficiency, being good in transmitting capability of a power device and realizing synchronous transmission.

The invention discloses a cable reeling device. The cable reeling device comprises a fixing mechanism, a wire spool disposed on the fixing mechanism, and a cable reeled on the wire spool orderly along one direction. The fixing mechanism comprises a bottom plate, two supporting plates, and a spring winding device. The wire spool is disposed between the two supporting plates, and the central position of the wire spool is provided with an inner shaft, which penetrates the two ends of the wire spool. The wire spool is disposed on the spring winding device in a sleeved manner, and the inner shaft passes through the spring winding device, and the inner side is provided with a rotating joint, and in addition, the inner end of the cable is electrically connected with one end of the rotating joint. The invention also provides an elevating antenna system provided with the cable reeling device. The function of the automatic folding and unfolding of the cable is realized, and therefore operation is simple, and the folding and unfolding efficiency is high.

The invention relates to the technical field of automobile transportation and particularly relates to a folding cover plate of a pickup truck container. The folding cover plate comprises a folding plate and a driving assembly, wherein the folding plate comprises a plurality of folding battens and a plurality of connecting battens, the driving assembly comprises a driving motor, a lead screw and atelescopic mechanism, all the connecting battens are fixed on the telescopic mechanism, an output end of the driving motor is in transmission fit with a speed reducer, a screw rod is fixed on an output shaft of the speed reducer, and the telescopic mechanism is in transmission fit with the screw rod through a threaded connection seat. The folding cover plate is advantaged in that automatic foldingand unfolding of the folding cover plate can be realized, steps of binding and unbinding the cover plate in the loading and unloading process are reduced, cargo loading and unloading efficiency is improved, the unnecessary labor force is reduced, the foldable cover plate is folded and unfolded, the occupied area of the cover plate is reduced, convenience is brought to workers, and the telescopicmechanism can improve folding and unfolding efficiency of the foldable cover plate and improve use efficiency of the foldable cover plate.

The invention relates to the field of road traffic management, and provides an automatic retractable equipment for traffic cones, which mainly comprises a suspension device and a retractable device, wherein the suspension device comprises a first fixed rod and a second fixed rod, wherein a supporting rod is fixed on the second fixed rod, and the retractable device comprises a base, a first rotating shaft, a second rotating shaft, a sprocket, a drive sprocket, a chain, a motor, a sprocket cover, a sliding board, shaft seats, rolling pull rods, a retaining arm structure and a positioning device; one end of the base is obliquely hung on the first fixed rod, and the bottom of the first fixed rod is fixedly connected with the supporting rod; the first rotating shaft and the second rotating shaft are erected at the two ends of the base through the shaft seats, and the two ends of the first rotating shaft and the second rotating shaft are respectively provided with sprockets; the sprockets arranged at the same end are connected by a chain, and the plurality of rolling pull rods are arranged between the two chains in parallel; and the sliding board is connected with the sprocket cover through hinges. The equipment has the function of automatically retracting the traffic cones, simple structure, convenient operation and high performance-price ratio.

The invention relates to the technical field of production and packaging equipment, and concretely relates to an integrated diving bell retracting and releasing system. The system comprises a movabletrolley assembly, a retracting and releasing support arranged on the movable trolley assembly, a first hydraulic rod, a diving bell connecting frame fixed to the retracting and releasing support, a balance weight frame, a diving bell winch, a balance weight winch and an umbilical cord winch, wherein the diving bell winch, the balance weight winch and the umbilical cord winch are fixed to the movable trolley assembly. The movable trolley assembly comprises a base, a platform frame fixed to the base and a driving device for driving the base to move horizontally, and a high-pressure cabin is arranged in the platform frame. One end of the retracting and releasing support is hinged to the base, one end of the first hydraulic rod is rotationally connected with the retracting and releasing support, the other end of the first hydraulic rod is rotationally connected with the base, and a diving bell pulley, a balance weight pulley and an umbilical cord roller device are arranged on the upper portion of the retracting and releasing support. The retracting and releasing system does not need to modify a ship body, is very convenient to install and use, can realize underwater continuous operation, and is high in retracting and releasing efficiency and good in safety.

The invention discloses a transportation device for physical education instruments, relating to the technical field of physical education. The transportation device comprises a large-sized ball placement tank, a racket placement tank and a small-sized ball placement tank, wherein universal wheels are arranged at the bottoms of the three placement tanks, and the three placement tanks are detachablyconnected; the large-sized ball placement tank comprises a first tank body and a plurality of ball body channels, ball body inlets and ball body outlets are formed in two sides of the first tank body, and a cover plate is arranged at each ball body outlet; the racket placement tank comprises a second tank body, a lifting mechanism, a supporting box and a lifting mechanism controller are arrangedin the second tank body, the lifting mechanism is mounted at the bottom of the second tank body, the supporting box is mounted at the upper end of the lifting mechanism, and a plurality of adjustableracket sleeves are arranged in the supporting box; and the small-sized ball placement tank comprises a third tank body, and a plurality of small-sized ball placement cylinders are arranged in the third tank body. The transportation device can be used for conveniently and simultaneously placing different types of physical instruments in different sites, so that the placing efficiency is improved; and different types of rackets can be conveniently placed.

The invention discloses a novel traffic cone and a collecting and placing system thereof. The novel traffic cone comprises a traffic cone body which is internally hollow, and light reflecting materialbelts, wherein the edge of the upper end part of the traffic cone body is provided with cone edges; the lower end of the traffic cone body is hemispheric and is in contact with the ground; a balanceweight body is arranged in the lower end of the traffic cone body; the traffic cone body above the balance weight body is provided with drain holes, wherein the diameter of the upper end of the traffic cone body is greater than the diameter of the lower end; and the light reflecting material belts are arranged on the outer wall of the traffic cone body at equal intervals. The collecting and placing system for the novel traffic cone fully utilizes a tumbler property of the novel traffic cone, so that the overall structure of the system is simple, the complexity of the collecting and placing system for the traffic cone is lowered, and collecting and placing efficiency can be improved.