93results about How to "Improve the righting effect" patented technology

The invention relates to a sugarcane whole stem leaf-peeling device, a harvester with the same, and a leaf-peeling method thereof. The harvester comprises a harvesting device, a power device, a chassis, a side conveying device, a leaf-peeling device and a sugarcane collecting device, wherein the leaf-peeling device comprises a guide cover plate, a pair of tip-cutting rolls, a traverse leaf-peeling roll, a vertical leaf-peeling roll, a speed-limit roll and a power transmission system. A sugarcane is firstly fed into the guide cover plate in a tip-first way, the tip-cutting rolls are oppositely arranged for crushing a growing point of the sugarcane to remove the tip and then fed into the traverse leaf-peeling roll, the transverse leaf-peeling roll and the vertical leaf-peeling roll are fixed with a plurality of rows of lead-peeling brushes, when the sugarcane passes through, leaf-peeling in an upper direction, a lower direction, a left direction and a right direction is completed, and the sugarcane does a certain axial rotation under the drive of the tip-cutting rolls and the speed-limit roll so as to achieve full-direction leaf-peeling. The invention reduces the power consumption, improves the sugarcane whole stem leaf-peeling rate, and can complete integration operations of whole stem buried cutting, transverse and vertical conveying, longitudinal conveying, tip crushing, leaf peeling and pilling placement by one-stop operation.

The invention relates to the technical field of oil-gas field down-hole tools and provides a hydraulic type sleeve pipe centralizer. The hydraulic type sleeve pipe centralizer comprises a core shaft, a hydraulic cylinder sleeve, a shearing dowel, an expanding assisting block and a centralizer plate spring; the upper portion of the hydraulic cylinder sleeve is mounted on the upper portion of the core shaft through a first fixing assembly, a liquid inflow hole is formed in the side wall of the core shaft, and a piston cylinder is mounted in a second annular cavity; a piston rod is mounted at the lower end of the piston cylinder; the lower end of the piston rod is mounted on the outer wall of the core shaft through the shearing dowel; the upper end of the centralizer plate spring is fixedly connected with the lower end of the piston rod through a second fixing assembly; the expanding assisting block is fixedly mounted on the outer wall of the middle of the core shaft; and the lower end of the centralizer plate spring is fixedly mounted on the outer wall of the lower portion of the core shaft through a third fixing assembly. The hydraulic type sleeve pipe centralizer is compact in structure, and stabbing and scraping over the well wall cannot be caused when the device is placed into a drill hole; hydraulic expanding seal is adopted, the outer diameter after expanding seal is large, the centering effect is better, center of a down-hole horizontal-section sleeve pipe is achieved, a cement loop is uniform, and improvement of the well cementation quality is facilitated.

The invention discloses a position fixing frame for transplanting trees, which comprises a trunk and a ground, the trunk grows on the upper part of the ground, the outer wall of the upper part of the trunk is wrapped with a first fixing device, and the first fixing device includes a first arc-shaped plate , the second arc-shaped plate, the third arc-shaped plate and the fourth arc-shaped plate, the first arc-shaped plate is hinged to the second arc-shaped plate through a rotating shaft, the first fixing device of the present invention includes the first arc-shaped plate, the second arc-shaped plate The second arc-shaped plate, the third arc-shaped plate and the fourth arc-shaped plate can be movably connected through the setting of the rotating shaft, and the setting of the cavity, spring and pull rod not only facilitates the second arc-shaped plate One arc-shaped plate is connected with the fourth arc-shaped plate, the second arc-shaped plate is connected with the third arc-shaped plate, and the first arc-shaped plate and the fourth arc-shaped plate and the second arc-shaped plate and the third arc-shaped plate can be adjusted The distance between the boards, so as not to hinder the growth of trees, can also accommodate trees of different diameters.

The invention discloses an adjustable three-jaw chuck type gradiograph strengthening device. The strengthening device comprises an upper end cover, a lower end cover, a plurality of strengthening blocks, a big bevel gear and a small bevel gear, wherein the big bevel gear and the small bevel gear are fixedly arranged on the lower end cover; the strengthening blocks are arranged on the big bevel gear; the upper end cover is fixedly arranged on the lower end cover. The strengthening device provided by the invention mainly utilizes the clamping principle of a three-jaw chuck for machining, the small bevel gear is rotated for driving the big bevel gear to rotate so as to cause the strengthening blocks to simultaneously outward expand or shrink at same speed, so that the change in circumscribed circle diameters on the end faces of the strengthening blocks is realized, the strengthening blocks are in contact with the inner walls of drill hole, drill rod or sleeve and the axis of the gradiograph is almost consistent with the axis of the drilling hole. The adjustable three-jaw chuck type gradiograph strengthening device is simple in structure, convenient in mounting and dismounting, excellent in strengthening effect and suitable for drilling holes with different diameters; stepless adjustment is realized; the device is portable; a mud flow path is difficult to be blocked; the cost is saved; the service life of the strengthening device is prolonged; the strengthening device is also applicable to the strengthening of other tubing gradiographs.

The invention relates to the technical field of casing centralizing devices and discloses a hydraulic casing centralizer with double hydraulic cylinders. The hydraulic casing centralizer comprises a casing nipple, an upper hydraulic cylinder barrel, a lower hydraulic cylinder barrel, an upper backstop shaft sleeve, a lower backstop shaft sleeve, a first limiting device, a second limiting device, a third limiting device, a fourth limiting device and at least one spring plate, wherein the first limiting device is fixedly arranged at the outer side of the upper part of the casing nipple; the outer side of the upper part of the casing nipple is sleeved by the upper backstop shaft sleeve; and the outer side of the upper part of the upper backstop shaft sleeve is fixed together with the inner side of the lower part of the first limiting device. The hydraulic casing centralizer is reasonable and compact in structure, and convenient to use; both the upper hydraulic cylinder barrel and the lower hydraulic cylinder barrel can push the spring plate to expand, so that the centering effect of a casing connected with the hydraulic casing centralizer in a well can be improved, and the centralizing effect of the hydraulic casing centralizer to the casing is improved; and meanwhile, the formed cement sheath is uniform in thickness, the well cementation quality is improved, and risks existing in later-period production and oil and gas invasion in operation are reduced.

The embodiment of the invention discloses an oil pipe type centralizer and belongs to the technical field of oil exploitation. The oil pipe type centralizer comprises a first fixed ring, a second fixed ring, a sliding mechanism, an installation pipe and diameter changing mechanisms. The first fixed ring and the second fixed ring are arranged above and below the installation pipe correspondingly and are both connected with the installation pipe through the sliding mechanism. The multiple diameter changing mechanisms are evenly arranged on the outer wall of the installation pipe. The oil pipe type centralizer further comprises an installation cavity, an annular airbag and an extrusion friction piece. The annular installation cavity is formed in the installation pipe and is filled with the annular airbag. The installation cavity communicates with the second end of a sliding groove. A slider abuts against the annular airbag. The extrusion friction piece is arranged in the position, towardthe installation pipe inner cavity, of the inner wall of the installation cavity. The extrusion friction piece abuts against the annular airbag. The oil pipe type centralizer is ingenious in structuredesign, good in centralizing effect, axial rotation of the installation pipe can be limited along with the change of the inner diameter of a casing, and adaptability and stability of an existing centralizer are improved significantly.

The invention discloses a horizontal well thermal recovery full well section prestress safe completion pipe string and a method. The horizontal well thermal recovery full well section prestress safe completion pipe string comprises a hollow prestress ground anchor, a hydraulic centralizer, a drill-plug-free grading hoop and a sand screening pipe assembly which are sequentially connected from front to back. The sand screening pipe assembly comprises at least two sand screening pipes and thermosensitive compensators, and the thermosensitive compensators are connected between every two sand screening pipes. The rearmost end of the sand screening pipe assembly is connected with a well washing valve. The upper end of the hollow prestress ground anchor is connected with a casing pipe. According to the horizontal well thermal recovery full well section prestress safe completion string and the method, the problems that at present, prestress cannot be pulled during horizontal well thermal recovery completion, and effective compensation does not exist in a horizontal section are solved; and pipe string thermal stress protection of a full well section is achieved, the influence brought by high-temperature steam injection is counteracted, and safe production of the completion pipe string is ensured.

The invention relates to the technical field of oil production engineering machinery in oil fields, in particular to a hollow sucker rod. The technical proposal is that the hollow sucker rod comprises a hollow joint and a rod body, wherein the rod body is provided with a hollow cavity and is fixedly connected with one end of the hollow joint, a centralizer is arranged on the rod body, and the outside diameter of the centralizer is larger than that of the rod body and the hollow joint. As an improvement, the centralizer is a carbon fiber centralizer. As a further improvement, the other end of the hollow joint is provided with a threaded connecting part which is provided with a thrust bearing surface and a sealing device. The hollow sucker rod has reasonable structure and reliable sealing, not only can play good centralizing effect, but also has high precision, reduces eccentric wears during oil pumping, reduces the machine halt frequency caused by the eccentric wear, greatly improves the service life of the hollow sucker rod, prolongs the working cycle, and reduces the oil production cost.

The invention discloses an under-well cable wet type butt-joint device for an oil well. The under-well cable wet type butt-joint device comprises a cable butt-joint male connector and a release joint.When the cable butt-joint male connector is carried by a pipe column to be guided into the release joint of a well, an upper insulation sleeve is arranged on an upper insulation ring in a sleeving mode, thus sealing is achieved between the upper insulation sleeve and the upper insulation ring, a lower insulation sleeve is arranged on a lower insulation ring in a sleeving mode, thus sealing is achieved between the lower insulation sleeve and the lower insulation ring, a conductive sleeve is arranged on a conductive ring in a sleeving mode to form conductive connection, and thus an upper data cable L1 communicates with a lower data cable L2. A locking ball with a spring is inserted into a butt-joint guide head annular groove of a middle hole penetrating through a locking ball seat, and butt-joint locking is achieved. A limiting basket is supported on a receiving basket. The under-well cable wet type butt-joint device has the advantages that the under-well cable wet type butt-joint device has repeated butt-joint ability, long-term stable power supply and communication can be kept after successful butt-joint connection, only the cable butt-joint male connector is pulled out and maintenance is conducted during pump inspection operation, and field operation is facilitated.

The invention provides an offset-bow centralizer device. The offset-bow centralizer device comprises a centralizer body, wherein stop rings are arranged at two ends of the centralizer body, the centralizer body is in a hollow structure, and comprises a plurality of support ribs arranged uniformly circumferentially, a gap is formed between every two adjacent support ribs, the support ribs are in a structure of asymmetrical offset bow, and bow parts of every two adjacent asymmetrical offset bow structures are staggered. An offset-bow support device is added to a traditional centralizer, welding points are reduced, and an overall structure is adopted, so that the centralizer device has a high casing centralizing effect and large annulus flow area, and displacement efficiency of circulating drilling fluid can be effectively improved; when a casing enters an inclined shaft section or a horizontal section, a casing body cannot be closely attached to the bottom of a borehole, the centralizing effect is good, a friction area is reduced, and accordingly, a frictional resistance coefficient between the casing and the well wall is reduced, frictional resistance is greatly reduced, and the casing is fed into a shaft smoothly.

The invention relates to a sucker rod centralizer. The sucker rod centralizer consists of a main body and a wedged body, and is characterized in that: the main body and the wedged body are provided with a plurality of deflector holes along the moving direction of the sucker rod; and the cross sections of the deflector holes are elliptical, and elliptical minor axes are arranged along the axial direction of the cross sections. The contact surfaces of the main body and the wedged body have the same shapes, the size of the wedged body is equal to that of a vacant part of the main body; and a key and a key slot, which are coupled with each other, are arranged between the outer surface of the wedged body and the inner surface of the vacant part of the main body. The novel sucker rod centralizer has the advantages of good diversion effect, large wear-resisting area, good centralizing effect, high wax resistance and the like, and is convenient to maintain.

The invention provides an elbow-type dual-thrust hydraulic centralizer. The elbow-type dual-thrust hydraulic centralizer comprises a hydraulic thrust system and a centering system, wherein the hydraulic thrust system comprises a main body, hydraulic cylinders and a retaining system; the hydraulic cylinders are arranged on the main body; a piston is arranged in each hydraulic cylinder; the hydraulic cylinders and the pistons act on the centering system through in-pipe pressure building to realize centering; the retaining system can realize permanent centering after in-pipe pressure relief; the centering system comprises a push ring, a positioning block and at least four groups of elbows uniformly distributed on the circumference of the main body; the push ring is connected with the pistons; the positioning block is fixed to the middle of the main body; one end of each elbow is fixed on the push ring, and the other end of each elbow is fixed on the positioning block; an included angle is formed between each elbow and the main body; and the centering system can be started up by an extremely small starting force. The bidirectional hydraulic system ensures no axial displacement of the centering system; owing to the unique pre-bending structural design, the starting force of the centering system becomes smaller; and the elbow-type dual-thrust hydraulic centralizer is suitable for centering casings of both horizontal wells and highly-deviated wells.

The invention relates to a pressure balancing device in a petroleum drilling downhole instrument or tool in the field of downhole operation tools. The technical scheme is that a wiring pipe is arranged in a hollow joint, the upper end and the lower end of an annular cavity of the wiring pipe and the joint are respectively plugged by an oil passage plug and a plug, a floating piston together with a spring is sheathed outside the wiring pipe between the oil passage plug and the plug, one or a plurality of oil passages are axially arranged in the oil passage plug, the inner wall and the outer wall of the floating piston are respectively in sliding seal fit with the wiring pipe and the joint, and one or a plurality of liquid passages are radially arranged in the annular cavity section of the middle part of the joint. The pressure balancing device has the advantages that the required hydraulic oil can be provided for the rotating seal of the downhole instrument or tool, the reliability and the service life of a sealing system are improved, and the downhole normal operation of the downhole instrument or tool is guaranteed.

The invention discloses a self-righting abrasion-proof hollow sucker rod which comprises a hollow sucker rod body. A centralizer and an abrasion-proof device are arranged on the inner sides of tube rod joints at two ends of the sucker rod body respectively, the distance between the centralizer and the abrasion-proof device is longer than 2 meters, and both the centralizer and the abrasion-proof device can freely rotate on the sucker rod body. The freely rotatable centralizer and the freely rotatable abrasion-proof device are arranged on the rod body, so that fine righting effect can be achieved, accuracy is high, eccentric abrasion is decreased when oil is sucked, the stop frequency caused by the eccentric abrasion is reduced, the service life of the hollow sucker rod is greatly prolonged, and operation cycle is prolonged, so that oil production cost is reduced. The self-righting abrasion-proof hollow sucker rod has the advantages of reasonable structure, reliability in sealing, low cost and the like.

The invention discloses a two-way thrust universal coupling for a high-stability screw pump and belongs to the technical field of submersible machinery. An upper gear sleeve (9) and a lower gear sleeve (17) are fixedly arranged at the upper end and the lower end of a connecting pipe (11); the lower end of an upper gear shaft (4) is meshed with inner teeth of the upper gear sleeve (9) through an upper zero-tooth-difference inner-meshing drum gear (8); the upper end of a lower gear shaft (21) is meshed with the inner teeth of the lower gear sleeve (17) through a lower zero-tooth-difference inner-meshing drum gear (13); knuckle bearings comprise a first knuckle bearing (6), a second knuckle bearing (10), a third knuckle bearing (16) and a fourth knuckle bearing (18); the first knuckle bearing (6) and the second knuckle bearing (10) are oppositely arranged at the two ends of the upper zero-tooth-difference inner-meshing drum gear (8); the third knuckle bearing (16) and the fourth knuckle bearing (18) are oppositely arranged at the two ends of the lower zero-tooth-difference inner-meshing drum gear (13). The two-way thrust universal coupling for the high-stability screw pump has the advantages that the carrying capacity is high, and the two-way axial force can be borne.

The invention provides a sucker rod centering device capable of being conveniently dismounted and mounted and belongs to the technical field of fastening members. The sucker rod centering device is composed of a rod frame and a wing barrel, wherein the rod frame is of a cylindrical pipe section formed by longitudinally inserting two pieces of semicircular slip barrels; a sucker rod channel is arranged in the barrel, the middle section is a frame rod of the diameter-reducing wing barrel, the lower end is a diameter-expanding wing barrel seat platform and the upper end of a diameter-expanding wing barrel limiting pressing platform; the wing barrel is composed of two pieces of slip barrels which are in relative clamping joint and a longitudinal wing sheet is arranged on an outer wall of eachslip barrel; the wing barrel sleeves a sleeve groove located at the middle section of the a cylindrical pipe section of the rod frame. According to the sucker rod centering device capable of being conveniently dismounted and mounted, provided by the invention, the whole mechanical strength of the centering device is effectively improved; a texture type surface at the inner side enables the installation to be firmer and the sucker rod centering device does not slip and does not fall off. A retracting and clamping joint structure is adopted, the design structure is simple and the installation isconvenient; a very good centering effect on a sucker rod is realized and a rod pipe can be prevented from being effectively eccentrically abraded, so that the service life of the sucker rod is prolonged and the reliability of a rod pumping well oil production system is improved.

The invention discloses a motor-driven adjustable centralizer used in petroleum development industry. The motor-driven adjustable centralizer comprises a center tube (1), motors (3), motor shafts (4),threaded columns (5), synchronous rings (7), pushing rods (9), thread arc pieces (10), track arc pieces (11), centralizing rods (12) and slotted cylindrical head screws (17). Power is energized to the motors (3) in an underground casing centralizer, the motors (3) drive the threaded columns (5) to rotate, the threaded columns (5) rotate on adjacent pair of side threads (19), thus rotation motionof the threaded columns (5) is converted into linear motion, linear motion converted from the threaded columns (5) can push the centralizing rods (12) to rotate outwards to realize casing centralizing. The motor-driven adjustable centralizer has the advantages of simple structure, low cost and novel idea, the synchronous rings (7) ensure the central position of the casing, the centralizing effectis better, and the well cementation quality is improved advantageously.

The invention relates to a Chinese composition for treating urinary tract infection, which comprises the following components in part by weight: 10 to 40 parts of giant knotweed, 5 to 55 parts of heartleaf houttuynia herb, 8 to 35 parts of dahurian patrinia herb, 10 to 60 parts of raw crataegus pinnatifida, 1 to 30 parts of dogwood fruit, 10 to 60 parts of parslane herb, 5 to 35 parts of white paeony root and 10 to 65 parts of raw raidx astragali. Compared with the prior art, the Chinese composition has the advantages of clearing away heat, promoting diuresis, tonifying qi and the kidney, along with reliable treatment effect and the like.

The invention belongs to the field of oil exploitation, and particularly discloses a self-adaptive casing pipe centralizer for oilfield exploitation. The self-adaptive casing pipe centralizer comprises a locking limiting unit, a shaping limiting unit and two end fixing units. A centralizing mechanism is arranged between one side of each of the two end fixing units and the locking limiting unit. Each end fixing unit comprises two semi-ring mechanisms which are in sliding connection with each other, the semi-ring mechanism comprise end plates, one end of each end plate is fixedly connected withan adjusting plate, cavities are formed in the inner walls of the end plates, and locking grooves are formed in the bottoms of the inner walls of the cavities. According to the self-adaptive casing pipe centralizer for oilfield exploitation, centralizing operation on casing pipes of multiple diameters can be achieved, and the device using flexibility is improved; and by arranging the two end fixing units, the locking limiting unit and the shaping limiting unit, centralizing operation is carried out on the casing pipes at multiple positions, the supporting force is high, and the centralizing effect is good.

The invention discloses a power pole righting sleeve. The sleeve body is composed of a left centralizer and a right centralizer. The outer rings of the left centralizer and the right centralizer are provided with a centralizer bar, and the central part of the centralizer bar is provided with an elastic connector. Both ends of the centralizer bar are provided with bases, and the inner ring of eachbase is provided with a correcting sleeve. The upper end of the sleeve body is provided with a mounting seat, the mounting seat is assembled by a left mounting seat and a right mounting seat, and theleft mounting seat is detachably arranged through a fixing screw and the right mounting seat. The inner ring of the mounting seat is provided with a silicone pad, and the inner ring of the silicone pad is provided with a power pole. The mounting seat and the sleeve body are easy to operate, easy to install, and can be used repeatedly. The power pole righting sleeve has high practicability and wideapplication range. The left stabilizer and the right stabilizer are collectively covered on the outer surface of the power pole, thereby avoiding deviation and skew of the power pole, and the power pole tends to be stationary and in a relatively vertical status.

The invention provides an elastic ball centralizer, which is mainly used to ensure the centering degree of the casing, reduce the running friction resistance of the casing, and improve the running smoothness of the casing. The fixing ribs are spirally arranged on the outer wall of the centralizer body to facilitate the rotation of the casing downhole. The centralizer includes a fixed rib, a centralizer body, leaf springs and balls. A leaf spring with multiple middle holes is arranged inside each fixed rib near the outer wall of the centralizer body to provide support for each ball. Each ball corresponds to a center hole. The hole surface of each middle hole is ground into a concave spherical surface consistent with the ball. The elastic coefficient of the leaf spring is set according to the different inclination angles to give the casing the best elastic support.

The invention provides a reverse circulation channel-type double stage reamer comprising a reverse circulation assembly. The reverse circulation channel-type double stage reamer is characterized in that the reverse circulation assembly comprises a mandrel whose inner portion is provided with a reverse circulation structure; both ends of the mandrel are internal thread joints; a front centralizer,a first level reaming base, a second level reaming base, a rear centralizer and a slag suction bucket are welded on the shell of the mandrel; a front spiral blade is welded on the shell of the front centralizer while a rear spiral blade is welded on the shell of the rear centralizer; the slag suction bucket is welded on the shell of the mandrel and located between the first level reaming base andthe second reaming base; the slag suction bucket is communicated with the mandrel through a slag suction pipe; a reinforcing rib is respectively welded on the shell of the mandrel and the end surfaceof the rear centralizer; tooth palms and double rows of PDC (polycrystalline diamond compact) blades are respectively fixed on the first level reaming base and the second level reaming base; the end portion of the tooth palms is connected with a cone. The reverse circulation channel-type double stage reamer has the advantages of being applicable to different geology, having large cross section insingle reaming and high reaming efficiency, and achieving the effects of quick replacement of cutting edges, reducing costs and prolonging service life.

The invention provides a measurement-while-drilling exploring tube device used for mining. The exploring tube device comprises an end cap part, a supporting assembly, a damping body assembly, a base body assembly, an outer tube and a top pillar assembly; the end cap part is connected with the front end of the supporting assembly; the damping body assembly is installed at the position of a threaded hole in the supporting assembly along the center axis; one end of the outer tube is installed at the rear end of the supporting assembly; the top pillar assembly is installed at the other end of the outer tube; the base body assembly is installed on a connector on the core part at the rear end of the damping body assembly. In the measurement-while-drilling exploring tube device, a four-wing centering guide is added, it can be achieved that the damping and righting effects are enhanced, the coaxial precision of an exploring tube and a non-magnetic bin is improved, and the exploring tube device is not prone to erosion; a seven-core connector socket is added so that it can be achieved that the Baud rate of a sensor is adjusted in real time and the measurement-while-drilling data of the sensor is detected in real time; when a sliding ring connector plug of the top pillar assembly is connected with a sliding ring connector socket of the base body assembly, simple installation and disassembly and reliable connection can be achieved, the insulativity between a shell and an inner core of the exploring tube is improved, and the length of the exploring tube is shortened, so that the cost is reduced.

The invention relates to a drilling device used in oil gas drilling, in particular to a clinometer centralizer. The clinometer centralizer comprises a base body, wherein an upper end and a lower end are mounted on the base body, and a centralizer body is further arranged on the base body. A rubber sleeve is sleeved on the outer portion of the centralizer body, and a ring-shaped arc protrusion is arranged in the middle of the rubber sleeve. Countersinks are formed in the upper portion and the lower portion of the rubber sleeve, and fastening bolts are mounted in the countersinks and fix the rubber sleeve on the centralizer body. An abrasion resistant layer is arranged on the outer portion of the rubber sleeve, and retaining rings are arranged at the connection position of the upper end and the base body and the connection position of the lower end and the base body. The clinometer centralizer is simple in structure, reasonable in design and good in the centralizing effect; the arc protrusion is arranged in the middle of the rubber sleeve and the abrasion resistant layer is arranged on the outer portion of the arc protrusion, so the inclinometer can stay at the center constantly. In addition, the clinometer centralizer is small in friction so that eccentric wear of the centralizer can be prevented.

The invention provides a method for evaluating stratum working parameters applicable to a radial well through jet flow drillability. The method comprises the steps that step 10, a stratum rock sampleis divided into a loose stratum, a medium-hard stratum and a hard stratum; step 20, when the stratum is the loose stratumm, a self-traction deepening drilling tool is adopted for drilling, the self-traction deepening drilling tool is connected with the coiled tubing, the coiled tubing is lowered and fed in, and a first spraying hose is arranged on the self-traction deepening drilling tool; when the stratum is a medium-hard stratum, a stepping type deepening drilling tool is adopted for drilling, the stepping type deepening drilling tool comprises a hydraulic cylinder piston rod and a crawlingmechanism, the stepping type deepening drilling tool conducts feeding through the hydraulic cylinder piston rod and the crawling mechanism, and a second spraying hose is further connected to the stepping type deepening drilling tool; when the stratum is a hard stratum, the near-wellbore zone drilling tool is adopted for drilling, the near-wellbore zone drilling tool is provided with a hydraulic cylinder piston rod, the near-wellbore zone drilling tool is fed in through the hydraulic cylinder piston rod, and the near-wellbore zone drilling tool is provided with a third injection hose.

The invention discloses an ornamental tree and shrub efficient centering device capable of preventing damage. The device comprises a fixing base, a movable plate, a movable frame and a fixing belt, wherein the two sides of the lower portion of the fixing base stretch out to form a rectangular solid cast iron structure for positioning a ribbed plate, the movable plate is arranged above the fixing base and is in sliding fit with the fixing base through a sliding groove, an arc groove structure is formed in the middle of the movable frame, the movable frame is in sliding fit with a steering wheelthrough an arc groove, the fixing belt is flat nylon tape with the width larger than 5 cm, and the fixing belt is arranged over the center of the steering wheel. A take-up reel and an anti-inversiondevice can stably tension the fixing belt through a steel wire rope, the fixing belt is wound around the upper end of an ornamental tree and shrub, yawing force is applied to the ornamental tree and shrub, a fertilization frame is used for adding fertilizer and auxin to the ornamental tree and shrub, self-centering of the ornamental tree and shrub is promoted, and the damage caused by external force application is reduced.

The invention relates to a structure for connecting a wearing ring and a joint in a drill machine. The structure comprises the wearing ring and the joint and is characterized in that the wearing ring is in threaded connection with the joint; multiple grooves are evenly distributed in the outer wall of the wearing ring. The wearing ring and the joint are fixed in the threaded connection mode and the effects of aligning the drill rod and chambering with the wear-resisting ring are greatly enhanced. Due to the grooves in the outer wall of the wear-resisting ring, friction between the structure and the ground is facilitated and the chambering effect is further improved.

The invention discloses a traditional Chinese medicine composition toothpaste containing functional oligosaccharides. The toothpaste comprises the following raw material components in percentage by weight: 0.5-10% of functional oligosaccharides, 0.1-5% of common anemarrhena rhizome extract, 0.1-5% of senna leaf extract, 0.1-5% of hemp seed extract, 0.1-5% of Chinese dwarf cherry seed extract, 20-50% of a moisturizing agent, 15-45% of an abrasive, 0.8-1.5% of a thickener, 1.8-2.5% of a surfactant, 0.15-0.3% of a sweetener, 0.1-0.3% of a preservative, 0.8-1.5% of essence, and deionized water which is added until 100%. Specifically, the functional oligosaccharides are uses as probiotics (bifidobacterium / lactobacillus) proliferation factor; common anemarrhena rhizomes, senna leaves, hemp seedsand Chinese dwarf cherry seeds are used as a regulator for clearing heat and moistening intestines; a toothpaste is taken as a carrier; and the invention provides the traditional Chinese medicine composition toothpaste which has the functions of cleaning oral cavity, regulating intestinal microecology and clearing heat to eliminate stagnation.

The invention discloses an elastic alignment pipe component for the perforation of oil and gas wells, thus solving the problem of the existing hardwired alignment pipe that in the actual assembly process, the control of the accumulative error of the system is difficult. The elastic alignment pipe component is formed by splicing a first alignment pipe and a second alignment pipe, the inner cavity diameters of the first alignment pipe and the second alignment pipe are the same, the first alignment pipe comprises a first alignment pipe seat and an alignment pipe joint; and the second alignment pipe comprises a second alignment pipe seat and an alignment pipe plug, the alignment pipe plug is inserted in the alignment pipe joint, the first alignment pipe seat is connected with the alignment pipe joint through an elastic part, and the second alignment pipe seat is connected with the alignment pipe plug through another elastic part. As the alignment pipes are guided mutually and connected in a matched mode, the field assembly of the alignment pipes is particularly easy and the destructive effect of top extrusion can not appear. The phenomena that irregular nested sediments are formed in the pipe cavity and the gun barrel is blocked can be avoided and reduced after operations.