Telescopic jacking stepwise rollback-type reel sprinkling irrigation machine

A telescopic jacking stepwise rollback-type reel sprinkling irrigation machine comprising:

• a chassis and a sprinkling irrigation apparatus, wherein the chassis is a box-shaped support frame structure with a top portion, a bottom portion, and a rear portion open, a support wheel is provided at a rear end of the bottom portion of the chassis, front supports that incline toward a lower forward direction are respectively disposed on left and right sides of a front end of the bottom portion of the chassis, and a holding beam that is disposed in a horizontal direction and fixedly connected to the two front supports is disposed between the two front supports;
• and the sprinkling irrigation apparatus comprises a sprinkling irrigation PE hose, a pressurized water axial end input joint, a sprinkler support mechanism, and a sprinkler, wherein
• the telescopic jacking stepwise rollback-type reel sprinkling irrigation machine further comprises a locking-type reel and a stepwise driving apparatus;
• the locking-type reel comprises a cylinder, wing plates, and reel rotation shafts;
• the cylinder is a hollow cylindrical structure;
• the wing plates have a disk-shaped structure, a quantity of the wing plates is set to two, the two wing plates are coaxial with the cylinder respectively and fixedly disposed at two ends of the cylinder, a size of an outer diameter of the wing plates is greater than a size of an outer diameter of the cylinder, opposite inner surfaces of the two wing plates and an outer surface of the cylinder together form an accommodating space for a sprinkling irrigation PE hose, an outer surface of at least one wing plate further has a locking channel protruding from an outer surface of the wing plate, the locking channel is set to be a sealed ring structure along a circumferential edge position of the wing plate, and the ring structure is disposed concentrically with the wing plate;
• a quantity of the reel rotation shafts is set to two, the reel rotation shafts are coaxially disposed at the central positions of the two wing plates in a left-to-right symmetric mode, the reel rotation shafts have a hollow sleeve structure, and the locking-type reel is set to roll back and forth and is mounted on the chassis through the reel rotation shafts;
• the pressurized water axial end input joint is a three-way structure that comprises an input end and two output ends, one output end of the pressurized water axial end input joint is coaxially fixed and mounted at an axial end of one reel rotation shaft of the locking-type reel;
• the sprinkling irrigation PE hose is wound on the cylinder of the locking-type reel, an input end of the sprinkling irrigation PE hose penetrates into the cylinder of the locking-type reel and is connected to and is in communication with an output end of the pressurized water axial end input joint, and the output end of the sprinkling irrigation PE hose extends out from a top of the holding beam of the chassis;
• the sprinkler comprises a sprinkler connection hose mounted on the sprinkler support mechanism in a vertical direction and a sprinkler head mounted at a top of the sprinkler connection hose, and a bottom end of the sprinkler connection hose of the sprinkler is connected to and is in communication with the output end of the sprinkling irrigation PE hose;
• the stepwise driving apparatus comprises a lifting cylinder, an upper caliper, and a lower caliper;
• the lifting cylinder is fixedly mounted at a rear end of the chassis at a position corresponding to the locking channel, and the lifting cylinder comprises a cylinder body and a piston rod;
• a piston integrally formed with the piston rod is disposed at a bottom end of the piston rod, a size of an outer diameter of the piston fits in with a size of an inner diameter of the cylinder body, a rod body of the piston rod fits in with a size of a cylinder mouth at a top end of the cylinder body, the piston rod is mounted inside the cylinder body and divides a cavity of the cylinder body into an upper small cavity and a lower large cavity, a water inlet opening penetrating through an outer wall of the cylinder body is formed at the top of the small cavity in a radial direction of the cylinder body, the water inlet opening is connected to and is in communication with the other output end of the pressurized water axial end input joint through a pipeline;
• a cylinder bottom water release seat that extends downwards is disposed on a cylinder bottom base plane of the cylinder body, a cylinder bottom water release hole that penetrates through the cylinder bottom water release seat and is in communication with the large cavity is disposed on the cylinder bottom water release seat;
• a pallet is disposed at a top end of the rod body of the piston rod, and a channel I that penetrates the rod body in a radial direction is disposed under the rod body of the piston rod and above the piston;
• a valve rod penetrates through and is disposed inside the piston rod in an axial direction of the piston rod at a position corresponding to the cylinder bottom water release hole, and the valve rod penetrates through the channel I, a guiding boss of which a size of an outer diameter is greater than that of a rod body of the valve rod is disposed at a top end of the valve rod, the guiding boss of the valve rod fits in with a size of an inner diameter of a valve rod guiding hole located above the channel I and disposed along an axial direction of the piston rod, the valve rod slidably fits in with a valve rod guiding hole through the guiding boss, a blocking member is coaxially mounted at a bottom end of the valve rod, and a size of an outer diameter of a base plane of the blocking member is greater than a size of an inner diameter of the cylinder bottom water release hole;
• a force accumulating spring is further disposed in the valve rod guiding hole, a top end of the force accumulating spring presses against the guiding boss of the valve rod, and a bottom end presses inside the rod body of the piston rod;
• a large cavity water inlet opening is further disposed in a base plane of the piston at a position corresponding to the cylinder bottom water release hole, the large cavity water inlet opening is in communication with the small cavity through a channel II, a size of an inner diameter of the large cavity water inlet opening is less than a size of an outer diameter of a top plane of the blocking member, and the large cavity water inlet opening, the valve rod, and the cylinder bottom water release hole are disposed coaxially;
• the upper caliper is disposed in a front-to-back direction and mounted between the lifting cylinder and the locking channel, the upper caliper comprises a bayonet portion and a pallet portion, the bayonet portion comprises a bayonet that is disposed along a left-to-right opening and clamped in the locking channel, a width size of the bayonet is in clearance fit with a thickness size of the locking channel, the pallet portion is a lengthwise plank structure disposed in a back-to-forth direction, a front end of the pallet portion is fixedly connected to the bayonet portion, and a rear end is in butt joint of the pallet of the piston rod;
• and
• a structure of the lower caliper is the same as a structure of the upper caliper and the lower caliper is located exactly below the upper caliper, a bayonet of the bayonet portion of the lower caliper is clamped on the locking channel, and a rear end of the pallet portion of the lower caliper is in butt joint of the chassis.