102 results about "Bending joint" patented technology

The invention provides an endoscope anastomat stroke compensation method which can be applied to the technical field of medical instruments. A deflection system of the endoscope anastomat comprises a first stroke sensor, a percussion system of the endoscope anastomat comprises a second stroke sensor, and the method comprises the steps that the first stroke sensor is used for detecting the bending angle of a flexible knife handle in a bending joint in the cutting process; based on the bending angle, the change of the length of the flexible knife handle in the bending joint is calculated, and the forward moving amount of the cutting knife is obtained; a second stroke sensor is used for detecting the current stroke of a driving device at the rear end of the anastomat; and based on the cutting knife forward movement amount and the preset stroke of the anastomat rear-end driving device, the current stroke of the anastomat rear-end driving device is adjusted so as to compensate the stroke of the endoscope anastomat. By arranging the stroke sensor, measuring the forward moving amount of the cutting knife and the current stroke of the driving device at the rear end of the anastomat, and compensating the stroke of the endoscope anastomat, the anastomosis length of the anastomat at various bending angles is stable and consistent, the anastomosis frequency is reduced, and the use cost is reduced.

The invention discloses a forming injection molding device for a medical polymer puncture frame, relates to the technical field of forming injection molding, and aims to solve the technical problem that a traditional guide channel is of an equal-diameter straight pipe structure, and the puncture precision is insufficient. According to the invention, the stepped inner cavity is matched with the embossed concave plate, so that the precise stepped reducing and low-friction inner wall is formed at one time, and the puncture precision is improved; the extrusion mechanism is bidirectionally driven to ensure complete molding and lossless demolding of the convex patterns, so that the product qualification rate is improved; the pressure buffering mechanism reduces micro-convex pattern gaps through pressure regulation and control, so that the integrity and the injection molding quality are improved; the reverse mold mechanism realizes automatic demolding through elastic deformation, the demolding time is shortened, and structural damage is avoided; the bending joints optimize the performance of the embossed concave plate, prolong the service life of the embossed concave plate and reduce the damage rate of the micro-embossed concave plate; through the design, the problems that precision and functionality of traditional equipment are difficult to consider, demolding is prone to damage and the like are solved, production efficiency and product stability are improved, and reliable structural guarantee is provided for puncture operation.

The invention relates to the technical field of medical apparatuses and instruments, and provides a portable electric vibration micro fracture device which comprises a holding part, one end of the connecting rod assembly is connected with the holding part; the first end of the bent connector is detachably connected with the end, away from the holding part, of the connecting rod assembly, the second end of the bent connector is provided with an execution piece used for bone tissue punching, the interior of the bent connector is detachably connected with an axial vibration driving piece, and the axial vibration driving piece acts on the execution piece and is used for driving the execution piece to reciprocate in the axial direction of the axial vibration driving piece; the power supply assembly is embedded in the holding part and is electrically connected with the vibration driving assembly; the elbow connector and the connecting rod assembly are detachably connected, elbow connectors with different bending angles can be rapidly and conveniently replaced, and the operation requirements of different crowds are met; the axial vibration driving part can drive the executing part to do reciprocating motion in the axial direction, progressive punching is achieved through stable axial vibration, the risk caused by out-of-control operation force can be greatly reduced, and the operation safety is improved.

The utility model discloses a hydraulic drive hard connection follow-up device for aerial oil supply, which comprises an oil passing shaft joint, a rotating sleeve joint and a mounting shaft, a mounting cavity is arranged in the middle of the rotating sleeve joint, one end of the oil passing shaft joint extends into the mounting cavity and is fixedly connected with the mounting shaft, and the other end of the oil passing shaft joint is fixedly connected with the mounting shaft. The oil passing shaft joint and the mounting shaft are rotationally connected with the mounting cavity respectively; the other end of the mounting shaft extends out of the mounting cavity and is coaxially mounted with the rotating center of the hydraulic drive; the other end of the oil passing shaft connector is provided with a bent connector and a straight connector which are connected with two hydraulic oil ways of the aircraft end respectively, and one side of the rotating sleeve connector is provided with a flaring combined guide pipe and a branch pipe which are connected with oil ports of the releasing end and the withdrawing end of the hydraulic drive respectively. The mounting shaft is coaxial with the rotating center of the hydraulic drive, and the mounting shaft is fixedly connected with the oil passing shaft joint, so that the oil passing shaft joint connected with an airplane does not displace, and the rotating sleeve joint connected with the hydraulic drive synchronously rotates around the axis of the oil passing shaft joint along with the hydraulic drive; the follow-up function of the hydraulic hard connection mechanism in a narrow space is achieved, and good practicability is achieved.

The quick-change connector convenient to disassemble comprises an elbow joint, a quick-change head is arranged at one end of the elbow joint, a hexagonal ring is arranged on the outer side of the other end of the elbow joint in a sleeved mode, a power assisting component is arranged on the edge side of the top of the hexagonal ring and comprises a fixing clamping groove formed in the top of the hexagonal ring, and a telescopic part is arranged in an inner cavity of the fixing clamping groove. Fixed parts are symmetrically arranged on the outer side of the fixed clamping groove, and each telescopic part comprises a sleeve and a movable rod; according to the utility model, the top of the hexagonal ring of the elbow joint is provided with the power-assisted component for assisting the elbow joint in rotating and fixing, so that an operator can unfold the elbow joint by utilizing the telescopic part hinged with the inner cavity of the fixed clamping groove in the power-assisted component, and rotate the elbow joint by utilizing the sleeve and the movable rod in the telescopic part; and the telescopic part is limited by the fixing part arranged on the outer side of the fixing clamping groove, and by means of the design, installation personnel can conveniently rotate and disassemble the elbow joint when the outer side of the hexagonal ring is damaged due to thread slipping and cannot be disassembled through a wrench.

The invention discloses an ultra-short radius directional horizontal well windowing sidetrack drill and a drilling construction method thereof, and relates to the field of drilling construction. According to the ultra-short radius directional horizontal well windowing sidetrack drill and the drilling construction method thereof, a titanium alloy drill rod and a flexible drill rod are connected, a flexible universal joint is arranged between the titanium alloy drill rod and the flexible drill rod, a non-magnetic flexible drill rod is connected with the flexible drill rod, a flexible screw motor is connected with the non-magnetic flexible drill rod, and a centralizer is connected with the flexible screw motor. According to the well drilling construction method, horizontal well drilling is carried out after the bottom of a lateral window is drilled through a drill bit along a whipstock, a new operation instruction is transmitted into an MWD wireless orientator while drilling in a flexible screw motor through a drill bit track adjusting system, and the drill bit is controlled through a bent connector to change the moving track. According to the method, in the horizontal drilling process, the moving track of the drill bit can be changed according to the requirements of customers.

The present application relates to the technical fields of ship engineering, in particular to a wrenching tool for n-bend joint and a using method thereof, the wrenching tool for n-bend joint comprises a sleeve ring and a wrenching rod, the sleeve ring is detachably sleeved on the outside of the locking sleeve, the circumferential side of the sleeve ring is provided with sleeves at positions opposite to each lug, the first end of each sleeve is arranged towards the center of the sleeve ring, and the first end of each sleeve is sleeved on the outside of each lug; the position of the circumferential side of the sleeve ring provided with the sleeve is connected with a locking mechanism for fixing the sleeve at the position; the first end of the wrenching rod is inserted into the second end of one of the sleeves, and the second end of the wrenching rod extends away from the sleeve ring; when in use, the lugs do not need to be knocked, the vibration generated by knocking the lugs is avoided, and the adverse effects of the n-bend joint on the stability of the pipeline caused by the way of installing or dismounting the lugs by knocking are avoided.

The utility model discloses an umbrella support rib group and an umbrella. The umbrella support rib group comprises an upper nest, a lower nest, long support ribs and short support ribs, the long branch bones and the short branch bones are arranged in pairs, and a plurality of pairs of long branch bones and short branch bones are arranged; a first bending joint is arranged at the first end of the long supporting rib; a second bending joint is arranged at the first end of the short supporting rib, and a third bending joint is arranged at the second end of the short supporting rib; the first bending connector is provided with a first clamping hook groove, the second bending connector is provided with a second clamping hook groove, the upper nest is provided with a first clamping hook, the lower nest is provided with a second clamping hook, the first clamping hook is matched with the first clamping hook groove in a clamping mode, and the second clamping hook is matched with the second clamping hook groove in a clamping mode. The second end of the short supporting rib is connected with the middle section of the long supporting rib through a third bent connector. According to the umbrella supporting rib set, reliable connection is achieved through matching of the specific clamping hooks and the clamping hook grooves and the structure of the bent connectors, and the stability of the umbrella is improved; the structure is simple and light, assembling is easy, and practicability is high.

The invention discloses a water expansion forming device and an elbow joint machining method. The water expansion forming device comprises an upper die, a lower die and a water expansion forming device, the lower die and the upper die are combined to form a water expansion forming cavity, a first clearance position and a second clearance position, the first clearance position and the second clearance position are communicated with openings in the two sides of the water expansion forming cavity respectively, and a containing space capable of containing a screw head is formed in the position, close to the water expansion forming cavity, of the first clearance position; the first punching needle extends into the containing space through the first clearance position, an injection channel is formed in the first punching needle, a first near-end shaft shoulder is arranged at the end of the first punching needle, a far-end shaft shoulder is arranged at the position, away from the end, of the first punching needle, and the size of the far-end shaft shoulder is larger than that of the first near-end shaft shoulder; and the second punching needle extends into the water expansion forming cavity through the second clearance position, and a second near-end shaft shoulder is arranged at the end of the second punching needle. By means of the water expansion forming device, the stainless steel pipe joint with the screw head can be directly machined, and the requirement of an engineering project is met.

The present invention discloses an epicyclic gear system housing assembly. A planetary gear housing assembly in an epicyclic gear system of a gas turbine engine, the planetary gear housing assembly comprising: a rear planetary gear carrier assembly; a front planetary gear carrier assembly; and a plurality of planetary gears. The planetary gear housing assembly comprises one or more of the following features: a strengthening member positioned between the front planetary gear carrier assembly and the rear planetary gear carrier assembly; a static bending joint that couples the front planetary gear carrier assembly and the rear planetary gear carrier assembly; a plurality of roller element bearings for supporting the plurality of planetary gears; and one or more bearing springs disposed between the bearings and the gear carrier housing to accommodate relative movement.

The utility model discloses a two-wheeled vehicle backrest assembly which comprises a backrest body, bent joints, connecting pipes and a connecting assembly, the two sides of the backrest body are connected with the connecting pipes through the bent joints, and the lower ends of the connecting pipes are connected with the connecting assembly. The problems that in the prior art, a backrest of a two-wheeled vehicle is unreasonable in structural design and particularly inconvenient to install, and the use comfort of a user is affected are solved; especially for vehicle types of different models, backrests installed at the back cannot be well matched, and the installation strength and the attractiveness are seriously affected. The backrest assembly of the two-wheeled vehicle is simple in overall structural design and can be conveniently connected with the two-wheeled vehicle in a matched mode. Through the connection of the bending joint, the backrest body can rotate adaptively, so that the requirement of improving the comfort of a user is met, and the stability of supporting the back of a rider is improved.

The utility model discloses a two-wheeled vehicle backrest which comprises a backrest body, bending joints, connecting pipes, adjusting rods and connecting arms, the two sides of the backrest body are connected with the connecting pipes through the bending joints, the lower ends of the connecting pipes are adjustably connected with the adjusting rods, and the other ends of the adjusting rods are bent, extend out and are adjustably connected with the connecting arms. The problems that in the prior art, a two-wheeled vehicle backrest is unreasonable in structural design, the height and the front-back position of the backrest cannot be conveniently adjusted according to the personalized backrest requirements of different heights and weights and different riders, and the use comfort of a user is affected are solved. According to the two-wheeled vehicle backrest, the height of the connecting pipe can be adjusted through the bent two ends of the adjusting rod, so that the height of the backrest body is adjusted; by adjusting the connecting position of the adjusting rod and the connecting arm, the front-back position of the backrest body can be adjusted, so that the personalized requirements of drivers with different heights and weights and liking different riding positions are met, and the comfort degree of the backrest to a user is improved.

The invention discloses a paper folding type underwater gripper based on HASEL drivers and a parameter design method.The paper folding type underwater gripper comprises a driver set and a gripper body, the gripper body comprises a connecting plate, bending joints, bearing frameworks and gripping fingertips, the bearing frameworks are connected through the bending joints to form a Z-shaped gripper framework, and the included angle of the bending joints is adjustable; the driver group comprises a plurality of single drivers, each single driver comprises a strain film and an electrified electrode, the single drivers are connected through a folding film, and the driver group is folded at the folding film to form a Z-shaped paper folding structure; the driver sets are installed on the inner side and the outer side of a gripper framework of the gripper, and the strain film is located in an included angle space formed by the bearing framework and the bending joint. When the driver set on the outer side is started, the strain film on the outer side expands, the included angle on the outer side of the gripper framework becomes large, and the grippers are bent inwards to enter the grabbing state; similarly, when the driver group on the inner side is started, the gripper is bent outwards and enters a loosening state.

The utility model discloses a nodular cast iron pipe fitting elbow joint suitable for complex terrains, which comprises an elbow joint, a pipeline, locking rings and a connecting ring, two ends of the elbow joint are respectively connected with the pipeline through the locking rings, and the locking rings are fixed on the elbow joint through mounting sleeves and locking screws. The connecting ring is connected with the connecting rod in a hanging mode through the hanging groove and matched with the connecting sleeve on the pipeline in a clamped mode, and the connecting rod tensions the connecting ring and the locking ring through the adjusting sleeve and the nut so as to achieve rapid locking. The limiting groove is clamped with a clamping rib on the outer side of the connecting sleeve to limit rotation of the connecting ring, a check ring is arranged on the outer side of the connecting sleeve and used for limiting longitudinal sliding of the connecting ring, the two ends of the bent connector are in sealing fit with a sealing ring through clamping rings to improve the sealing performance, and a reinforced fiber layer is embedded in the sealing ring to enhance the pressure resistance. The bent connector is simple in structure and convenient to install, can achieve rapid locking and efficient sealing of the bent connector and a pipeline, meets the use requirements under the complex terrain environment, and solves the problems that a traditional pipe fitting is loose in connection and poor in sealing performance.

The application provides a self-adaptive grasping dexterous hand thumb, which comprises a side swing joint, a bending joint and a fingertip, the side swing joint comprises a fixed base, a side swing driver and a first reversing transmission assembly; the bending joint comprises a connecting base, a finger joint linkage assembly, a bending driver and a second reversing transmission assembly. The application realizes the three-joint structure of the bionic thumb, can realize multi-directional rotation and bending actions, improves the degree of freedom and action accuracy, realizes the double driving function of side swing and bending through the built-in driving structure, thereby expanding the movable range. The self-adaptive assembly can dynamically adjust the relative position and clamping force of each finger joint of the thumb in real time, so as to realize the self-adaptive enveloping of the object, and further significantly improve the grasping stability of the dexterous hand thumb for objects of different shapes and sizes, effectively expand the application scene, and the application has the advantages of high flexibility, strong grasping adaptability, high action accuracy, fast response speed, high degree of freedom, high space utilization and the like.

The utility model discloses an elbow joint which comprises a first straight pipe and a second straight pipe, threads are arranged on the inner wall of the first straight pipe and the inner wall of the second straight pipe, the first straight pipe and the second straight pipe are connected with two first pipelines needing to be in butt joint respectively, and the elbow joint further comprises a spiral corrugated elbow. The two ends of the spiral corrugated bent pipe are fixedly connected with a first straight pipe and a second straight pipe respectively, reinforcing ribs are arranged on the first straight pipe and the second straight pipe, a first partial pressure pipe is arranged on one side of the first straight pipe, the first partial pressure pipe comprises a corrugated pipe section, and the first partial pressure pipe is connected with a second pipeline needing to be in butt joint or one first pipeline. The threaded corrugated bent pipe is arranged between the first straight pipe and the second straight pipe, so that the threaded corrugated bent pipe can be deformed or bent to a certain extent according to the actual direction condition of the first pipelines when the threaded corrugated bent pipe is in butt joint with the two first pipelines, the butt joint is more flexible, the overall manufacturing precision can be reduced, and the manufacturing cost can be reduced; and the condition that the device cannot be butted with the first pipeline is reduced or avoided.

The invention relates to a tongue-and-groove-steel sleeve-prestress connection anti-bending joint for a full-fabricated concrete beam. The tongue-and-groove-steel sleeve-prestress connection anti-bending joint comprises a prefabricated concrete notch beam section, an externally-wrapped thin steel sleeve and post-tensioned prestressed steel bars. The two sections of precast beams are connected into a whole through transverse rabbets at the ends of the beam sections, steel-encased sleeves arranged at the end connecting areas, prestressed steel bars in prestressed ducts and the like to form the node overall connecting rigidity, and the rigidity of the whole-span beam structure and the continuity of internal force transmission are achieved. The technical advantages of flexibility, repeatability, replaceability and the like of tongue-and-groove structures, bolt joints, steel-encased sleeves and prestress connection construction are fully utilized, the comprehensive performance is good, longitudinal stressed steel bars at the beam end of the vertical joint face of the tongue-and-groove are discontinuous and do not appear or are embedded or overlapped, and the problems that in the prior art, the standardization degree is low, the structure is complex, and the construction cost is high can be effectively solved. The problems of low bearing capacity, high assembly precision requirement, high quality control difficulty, poor recoverability, repeatability and replaceability, incapability of adapting to extreme weather conditions and the like are solved.

An augment device includes a hollow sleeve surrounding a channel extending through the hollow sleeve from a top to a bottom of the hollow sleeve, the hollow sleeve comprising a wall having an inner face and an outer face. The hollow sleeve includes at least one bending joint, the bending joint being configured for compressing the channel. Thereby the hollow sleeve may be compressed under an external force, leading to a decreased circumference and width of the hollow sleeve. This leads to a gap between the perimeter of the augment device and surrounding bone material, breaking any connections. By virtue of this, a much facilitated removal of the augment device can be achieved. Further, an extraction tool includes grippers for engaging and compressing the augment device, and further instruments, particularly a jig, for achieving an effective removal.

The invention relates to a static pressure rear-mounted electric spindle assembly method, and relates to the technical field of machine tool spindle assembly. Comprising the following steps: mounting a static-pressure front bearing and a static-pressure rear bearing in body shell holes; the spindle is installed in the front bearing hole and the rear bearing hole, and a check ring, a space ring, a static pressure end face bearing and a sealing ring are installed at the rear end of the spindle; guide sleeves are mounted on the rear end surfaces of the spindles; a pressing sleeve is sleeved outside the guide sleeve, a screw rod is upwards connected in the guide sleeve, a gland is arranged on the outer side of the screw rod and above the pressing sleeve, and a thrust bearing, a spherical washer and a flange nut are sequentially arranged above the gland; pressure oil is input into the rotor oil cavity hole; the flange nut is rotated to push the motor rotor to move downwards; the pressure pump releases pressure, and the motor rotor shrinks; removing a flange nut, a spherical washer, a thrust bearing, a gland, a pressing sleeve, a screw and a bent joint from the rear end of the main shaft; and the motor shell, the motor stator and the rear end cover are sequentially mounted. The assembly precision of the motor rotor and the main shaft can be improved, and the dynamic balance performance of a main shaft system is prevented from being affected by main shaft bending.

The utility model relates to a bending assembly applied to a surgical instrument anastomat, in particular to a bending assembly based on double flexible sheets, which comprises a bending joint assembly, a first flexible sheet (713) and a second flexible sheet (7713), the near end of the bending joint assembly is connected with a transmission base (701), and the far end of the bending joint assembly is connected with a nail bin device (4). A driving rack (702) and an auxiliary rack (704) are installed on the side walls of the two sides of the transmission base (701) respectively, the far end of the driving rack (702) is connected with the near end of the first flexible piece (713), the first flexible piece (713) penetrates through the transmission base (701) and the bending joint assembly and then is connected with the rear end of the bending joint assembly, and the auxiliary rack (704) is connected with the rear end of the transmission base (701). The far end of the auxiliary rack (704) is connected with the near end of the second flexible piece (7713), and the second flexible piece (7713) penetrates through the transmission base (701) and the bending joint assembly and then is connected with the rear end of the bending joint assembly. The utility model has the advantages of simple structure, good effect, low cost and easiness in process realization.

The invention relates to a ventilation nozzle (1) which can be adjusted manually and with an actuator. The ventilation nozzle (1) has a first outer spherical crown (29) which can be pivoted about a first axis (8) and a second inner spherical crown (30) which can be pivoted about a second axis (10). By means of the first electric actuator (21), the second inner spherical crown (30) can be adjusted independently of the first outer spherical crown (29) by means of an actuator (16) arranged on the control rod (13). The manipulator (16) is formed by a first fork (25) and a second fork (26), wherein the forks form a bending joint on the control rod (13).

A method for assembling pipe joints in an aircraft actuator hydraulic system assembly block is disclosed to achieve precise assembly between the bent pipe joint and the assembly block base. First, a measurement reference conversion component is used to derive the vertical distance from the intersection of the two central axes of the first and second bent joints to the upper reference plane of the assembly block base. Then, based on the derived values, a measurable assembly dimension B is determined. This measurable assembly dimension B is then used as the reference dimension, and the assembly of the upper bent joint of the assembly block is completed using an aircraft actuator hydraulic system assembly block assembly fixture. This method for assembling pipe joints in an aircraft actuator hydraulic system assembly block meets the assembly dimension requirements for upper bent pipe joints during aircraft maintenance, thus ensuring aircraft maintenance quality and safe flight.

The application provides a kind of elbow joint turning equipment, including workbench, processing chamber, numerical control turning assembly, holder and stopper, processing chamber is fixed on the upper side of workbench, numerical control turning assembly and stopper are fixed at the opposite ends of processing chamber respectively, holder is installed in the middle of processing chamber and is coaxially arranged with stopper, for clamping workpiece, adjusting the inclination angle of workpiece and driving workpiece to rotate;The stopper includes a limiting ring, a plurality of arc-shaped push plates and an adjuster, the push plates are placed in the limiting ring and are coaxially arranged with the limiting ring, a plurality of elastic plates are fixed on the concave surface of the push plates along the radial direction, the adjuster is fixed in the middle of the convex surface of the push plate, the free end of the adjuster penetrates through the inside and outside of the limiting ring, for adjusting the distance between the push plate and the limiting ring.The application solves the problem that it is difficult to overcome centrifugal force in the prior art, which leads to unstable clamping.

The application relates to the technical field of submarine optical cable connection, and discloses an injection-molding top-pressing type submarine optical cable joint box, which comprises a cable rubber anti-bending device, one end of the cable rubber anti-bending device is fixedly connected with a metal anti-bending device adapter, one end of the cable rubber anti-bending device is fixedly installed with a metal anti-bending joint through the metal anti-bending device adapter, one end of the metal anti-bending joint is fixedly installed with an injection-molding cable joint insert, the inside of the injection-molding cable joint insert is fixedly provided with an injection-molding joint, the inner wall of the cable rubber anti-bending device is fixedly installed with a PU pipe body, and one end of the PU pipe body is sleeved with one end of the injection-molding joint. The injection-molding process is used to inject an injection-molding colloid to the connection interface, the colloid is filled and solidified in a No.1 annular groove, a No.2 annular groove and a thread groove of a submarine cable outer sheath, and a connection structure with mechanical interlocking and sealing integration is formed. Meanwhile, the anti-bending chain formed by the cable rubber anti-bending device and the metal anti-bending joint and the weight-reducing framework jointly improve the anti-bending capacity and the structural stability of the joint box.

The invention relates to the technical field of ultrasonic detection, and provides a controllable ultrasonic detection device which comprises a handle, a bendable sheathing canal, a straight sheathing canal, a controllable bending connector, an ultrasonic probe, an intra-sheath control kit and a quick release base, the handle is connected with the bendable sheathing canal, the bendable sheathing canal is connected with the straight sheathing canal, the straight sheathing canal is connected with the controllable bending connector, and the controllable bending connector is connected with the ultrasonic probe. A bendable sleeve is arranged outside the controllable bending joint and is controlled by the intrathecal control kit, and meanwhile, the controllable bending joint can be connected with the ultrasonic probe through the quick release base. The angle of the ultrasonic probe is controlled through the control suite so that the ultrasonic probe can be attached to the surface of a detected organ, and effectiveness and accuracy of ultrasonic detection in minimally invasive surgery are improved. The bendable sheathing canal is connected with the straight sheathing canal and the handle, the bendable sheathing canal is manually controlled to adapt to different surgical operations, the operation difficulty is reduced, and the surgical efficiency is improved. The ultrasonic probe is designed to be of a quick release structure, the probe can be controlled through the device, and the ultrasonic probe can be quickly installed on the robot to achieve robot control.

The present application provides a kind of elastic bending section type coal mine casing device underground, comprising: a plurality of head-to-tail connection casing body, each casing body includes elastic member, sealing portion, first joint, second joint, first joint, second joint is located at the both ends of elastic member, sealing portion is arranged on the surface of elastic member and covers elastic member, the both ends of sealing portion are connected with first joint and second joint respectively, two casing bodies connected adjacently are connected by first joint and second joint, elastic member 2 is used as the framework structure of casing body, sealing portion 3 is arranged on the surface of elastic member 2 to seal elastic member 2, which plays the role of water isolation and pressure resistance, the casing body has certain flexibility in axial direction, and can be lowered into along the long distance of curved borehole;It has enough compressive strength in radial direction, can withstand hole wall surrounding rock stress, water pressure, gas pressure and the like, the elastic members of the casing bodies arranged adjacently are connected by first joint 1 and second joint 5, and the working efficiency of casing in raise hole is improved.

The invention discloses a quick dismounting device for an elbow joint of a directional coring drilling tool, and relates to the technical field of drilling tool dismounting. The quick dismounting device for the elbow joint of the directional coring drilling tool comprises a drilling tool horizontal adjusting assembly, a drilling tool dismounting assembly and a drilling tool fixing assembly. The horizontal adjusting assembly comprises a track, a moving trolley, a first conveying roller and a second conveying roller. The moving trolley is arranged on the track and can move along the track; the first conveying roller is rotationally arranged at one end of the track, the second conveying roller is rotationally arranged on the moving trolley, and the two conveying rollers are collinear in conveying direction and identical in height; and the second conveying roller is connected with a driving mechanism. The dismounting assembly comprises a mounting seat, a telescopic piece and a holding piece; the mounting base is arranged on the moving trolley, the fixed end of the telescopic piece is hinged to the mounting base, and the holding piece is hinged to the telescopic end of the telescopic piece. The drilling tool fixing assembly is arranged on the moving trolley and located between the enclasping piece and the second conveying roller. The device can be rapidly deployed in complex terrains, the bent connector is rapidly disassembled, the labor intensity is reduced, and the operation efficiency is improved.

The utility model discloses a charging tube guiding device which comprises a rotating mechanism, a continuous bending joint and a bending driving mechanism, the rotating mechanism comprises a fixing plate, a rotating disc and a rotating driving piece, the rotating disc is arranged on the fixing plate in a rotating mode, and the rotating driving piece is used for driving the rotating disc to rotate; the continuous bending joint comprises a plurality of fixed frames which are hinged in sequence, and the fixed frame on the outermost side is fixed on the turntable; the bending driving mechanism is connected with the continuous bending joint and used for driving the continuous bending joint to bend. The charging pipe guiding device has the advantages that the continuous bending joint is driven by the bending driving mechanism to bend, the rotary disc is driven by the rotary driving part to rotate, the rotary disc drives all the fixing frames to rotate, the head end of the charging pipe is aligned to a blast hole, and therefore mechanization of the charging pipe aligning to the blast hole is achieved, and production efficiency is improved. And manual alignment of the blast hole is not needed, so that the safety is improved, and the labor intensity of workers is reduced.