32results about How to "Protective thread" patented technology

A method and apparatus for running tubular(s) into a well bore for use with a top drive or power swivel comprising a make-up assembly with inner and outer members, one of which has an array of ramped or inclined surface(s) while the other is an inner or outer cage with rolling support(s) with or without a central spindle and openings which may also be referred to as tubular engagement apparatus wherein relative movement of the members urges the rolling support(s) to protrude radially through the openings to engage a tubular internally or externally. Also provided is an elevator assembly with elevator links and transfer elevators to position tubular for engagement by the make-up assembly.

A steering head that comprises a forward pivot block and a rearward pivot block. The forward pivot block is attached to a leading edge of a casing. The rearward pivot block is attached to a trailing portion of the casing, the leading edge being separated from the trailing portion by a gap in the casing. Extending between the forward and rearward pivot blocks is a central drive shaft. The central drive shaft includes a threaded portion and is rotatable to move a drive nut away from or towards the rearward pivot block. The central drive shaft, to either side of the drive nut, is covered by a cylindrical sleeve. A second internal sleeve extends between the rearward pivot block and the drive nut to protect the threads of the drive shaft from earthen debris when the casing is being advanced or reversed to steer the forward-most casing portion during operation.

Disclosed is a building material transporting device. The building material transporting device comprises a base plate and a top plate, wherein the base plate is fixedly installed on the ground, and the top plate is fixedly installed on the roof of a building. Two guide rods and a lifting threaded rod are fixedly installed between the base plate and the top plate, wherein the guide rods are symmetrical in a left-and-right mode, and the lifting threaded rod is located between the guide rods. A lifting frame is installed on the lifting threaded rod, and guide holes are symmetrically formed in the left side and the right side of the lifting frame, and matched with the guide rods. Guide sleeves are further installed on the guide rods in a sliding mode, and the upper ends of the guide sleeves are fixedly connected with the lower end of the lifting frame. A triangular plate is further fixedly installed between the front ends of the guide sleeves and the bottom end of the lifting frame, and a transverse groove and a longitudinal groove which is communicated with the transverse groove are formed in the triangular plate. A sliding plate is installed in a cavity of the lifting frame in the mode that the sliding plate can slide up and down. Sliding grooves which extend in a front-and-rear mode are formed in the guide sleeves, sliding frames are installed in the sliding grooves in a sliding mode, empty grooves which allow the guide rods to pass through are formed in the sliding frames, the rear end wall of each empty groove is set to be an arc-shaped surface, and arc-shaped friction plates are fixedly installed on the arc-shaped surfaces.

The invention belongs to the field of mechanical design, and relates to a floatable drill rod connecting device. The floatable drill rod connecting device is installed on a power head spindle and comprises a connector body connected with the power head spindle in a matched mode and a limiting device arranged outside the connector body and the power head spindle. An elastic piece with a floating positioning function is further arranged between the connector body and the power head spindle. The floatable drill rod connecting device has an axial floating function, rigid extrusion and friction between the connector body and threads of a front end drill rod are changed into an elastic gradual change process, the threads of the connector body are effectively protected, and the service life of the connector body is prolonged. By arranging a connecting sleeve, dynamic connection which generates impact for a long time is transferred between the connector body and the connecting sleeve, and thespindle and the connecting sleeve are in pin connection without impact, so that the probability that the spindle is directly damaged is greatly reduced, the maintenance cost is reduced, and the maintenance time is shortened.

The invention discloses a demoulding mechanism for an inner screw with an undercut, comprising a spring plate, a top plate, a main shaft, a threaded shaft, an inner rod and a mounting plate; the mounting plate, the spring plate and the top plate are from top to bottom. They are arranged in front of each other and there is a gap between them. The bottom four corners of the elastic plate are provided with top extension springs; the main shaft passes through the top plate and the elastic plate from the bottom to the top of the mounting plate and is connected with a driving gear; the threaded shaft There are two symmetrically arranged on both sides of the driving gear. The top of the threaded shaft is installed with a driven gear that meshes with the driving gear. The inner rod vertically passes through the threaded shaft and extends downward. The inner rod includes a core rod and a sleeve. On the sleeve rod around the core rod, a slope block is installed on the core rod, and a slider on the sleeve rod is clamped with the slope block. The invention effectively protects the inner thread and the undercut of the product through the step-by-step demolding design, and at the same time has a simple structure and is worthy of popularization and use.

A building material transport device comprises a base board fixedly installed on the ground, and a top board fixedly installed on a roof; two guide rods in bilateral symmetry and a lifting threaded rod located between the two guide rods are fixedly installed between the base board and the top board; a lifting frame is installed on the lifting threaded rod; guide holes are formed in the left and right sides of the lifting frame symmetrically; the guide holes and the guide rods are matched; guide sleeves are installed on the guide rods in a sliding mode; the upper end faces of the guide sleeves and the lower end face of the lifting frame are fixedly connected; a triangular board is fixedly installed between the front end of each guide sleeve and the bottom end of the lifting frame and internally provided with a transverse groove and a longitudinal groove communicating with the transverse groove; a sliding board is installed in a cavity of the lifting frame in a vertical sliding mode; the guide sleeves are internally provided with sliding grooves extending front and back; a sliding frame is installed inside each sliding groove in a sliding mode and internally provided with a groove allowing the corresponding guide rod to penetrate through; the rear end wall of each groove is an arc face; and each arc face is fixedly provided with an arc friction plate.

The invention discloses an efficient screw cleaning and drying all-in-one machine which comprises a tank and a screw containing frame. An ultrasonic generator, a liquid drainage pipe and a liquid outlet pipe are installed at the bottom of the tank. An air outlet pipe and a check ring are installed in the tank. The screw containing frame is installed on the check ring. A plurality of through holes are formed in the side walls and the bottom of the screw containing frame. A plurality of first grooves are formed in the inner walls of the screw containing frame. A plurality of partition plates are arranged in the screw containing frame, and one sides of the partition plates are provided with multiple second grooves. The partition plates are provided with multiple baffles. A tank cover is arranged on the top of the tank. A plurality of air blowing branch pipes are arranged at the bottom of the tank cover, and an air blowing header pipe is arranged on the top of the tank cover. The tail end of the air blowing header pipe is connected with an air blower. A heater is installed in the air blower. Due to the fact that the air blowing header pipe is arranged above the screw containing frame, the efficient screw cleaning and drying all-in-one machine can be used for directly drying cleaned screw rods without the need of transferring the screw rods, and the working efficiency is improved.

An electrically adjustable lifting seat, comprising: a seat surface (91), a base (90), a housing (3) fixedly mounted on the base (90), and an upper end of the housing (3) The end cover (96), the center of the end cover (96) is provided with a through groove, and the guide block (97) protruding inward is arranged in the through groove, and the electric motor is installed in the base (90). The motor (94) and the lifting threaded rod (93) connected with the electric motor (94) are threaded and installed with an upper and lower telescopic rod (92). The guide groove (95) matched with the guide block (97), the upper end of the upper and lower telescopic rods (92) passes through the through groove and is fixed with the bottom end of the chair surface (91), so that the electric motor ( 94) The driving can drive the chair surface (91) to carry out lifting motion.

The invention discloses a device and a method for a detachable manual assembling steel column, and relates to the field of building equipment. A technical scheme is that the device comprises a steel column base used to place a steel column and a support, and the middle part of the steel column is bound with one end of a sling. The sling crosses the top of the support. A free end of the sling is held by hand of a constructor. The steel column base is fixedly provided with a base. One end of the base, far away from the support, is hinged with one end of a connecting component. The other end of the connecting component is fixedly connected with the lower outer side of the steel column. An included angle between the side surface of steel column, facing the steel column, and a horizontal planeis larger than or equal to 30 DEG and is smaller than or equal to 90 DEG. Beneficial effects are that the structure connection form is used in the device, and the device is suitable for assembly of steel columns in different specifications and shapes. The steel column is hinged and connected with the base through the connecting component. Using the structure ensures structural mechanical properties of a connection position, and related standards and use requirement are satisfied.

An electric lift seat, comprising: a seat surface (91), a base (90), a housing (3) fixedly mounted on the base (90), and an end cover arranged at the upper end of the housing (3) (96), the center of the end cover (96) is provided with a through groove, and the guide block (97) protruding inward is arranged in the through groove, and the electric motor (94) is installed in the base (90) ), and the upper and lower telescopic rods (92) are threaded on the lifting threaded rod (93) connected with the electric motor (94). (97) matching guide groove (95), the upper end of the upper and lower telescopic rods (92) passes through the through groove and is fixed with the bottom end of the chair surface (91), so as to be driven by the electric motor (94) It can drive the chair surface (91) to carry out lifting motion.

The invention discloses a storage cabinet structure which comprises a storage cabinet rack, wherein a holding cavity which passes through front and back is formed in the middle point of the storage cabinet rack; a holding plate is arranged on the lower end surface of the holding cavity; a plurality groups of drawing boxes are distributed at equal intervals up, down, left and right at the lower end of the holding plate; a plurality groups of hung cabinets are arranged at the upper end of the holding cavity; handles are respectively arranged at the hung cabinets and the front end surfaces of the drawing boxes; a rollover prevention device is arranged on the upper side of the hung cabinets in a storage cabinet rack top base; the rollover prevention device comprises a fixing rack which is fixedly mounted in a holding well and a left fastening arm and a right fastening arm which are moveably mounted in sinking grooves in the rear end of the storage cabinet rack top base in a left and right symmetric manner; a guide groove which extends front and back and is communicated with the sinking grooves is further formed in the storage cabinet top base; a guide rod is mounted inside the guide groove in a sliding manner. The storage cabinet structure is simple in structure, convenient to use, stable to operate and high in security.

A process for manufacturing products made of composite materials, is disclosed which includes the steps:screwing at least one insert provided with a threaded hole on the outer thread of at least one pin partially inserted in a removable manner in a mold;arranging on the mold one or more fiber layers provided with at least one opening in which the insert is arranged;curing resin with the layers arranged on the mold, so as to obtain a product made of a composite material which incorporates the insert and the layers; androtating the pin in the insert for removing it from the mold.The present invention also relates to a mold, devices and a kit which can be employed for carrying out said process, as well as to products manufactured with this process and / or these means.

Disclosed are a hydraulic drill rig bit assembling and disassembling rotation and pushing self-adaptive hydraulic loop and a control method thereof. According to the hydraulic drill rig bit assembling and disassembling rotation and pushing self-adaptive hydraulic loop and the control method thereof, a loading sensitive variable pump, a loading sensitive proportional multi-way valve, a jackdrill, a pushing motor or oil cylinder and the like compose a jackdrill rotation and pushing main oil way; a bit assembling and disassembling pilot valve, a logic control module, an adjusting valve group, a pushing assembly, a rotating assembly and the like compose a bit assembling and disassembling self-adaptive control oil way. During bit assembly, the positive rotation speed is adjusted and determined by controlling the flow of the rotating assembly through the first pressure reducing valve of the adjusting valve group, the first hydraulic control reversing valve of the logic control module controls the loading sensitive external control interface LsA1 of the pushing assembly to be connected with the first overflow valve of the adjusting valve group, and the downwards-pushing force is adjusted and determined by the first overflow valve; during bit disassembling, the reverse rotation speed is adjusted and determined by controlling the flow of the rotating assembly through the second reducing valve of the adjusting valve group, the second hydraulic control reversing valve of the logic control module controls the loading sensitive external control interface LsB1 of the pushing assembly to be connected with a second overflow valve, and the upwards-pushing force is adjusted and determined by the second overflow valve. By synchronously coupling pushing pressure control and rotation speed regulation, the hydraulic drill rig bit assembling and disassembling rotation and pushing self-adaptive hydraulic loop and the control method thereof can achieve bit assembling and disassembling rotation and pushing self-adaption and bit achieve smooth and reliable bit assembling and disassembling.

The invention relates to a high pressure kettle switching device system and method, and belongs to the field of hydrothermal / solvothermal high-temperature and high-pressure devices used for laboratories. The high pressure kettle switching device system comprises a hollow hydraulic wrench, a hydraulic wrench workbench and a manual high pressure oil pump, a sleeve of the hollow hydraulic wrench is directly nested in an high pressure kettle cover (11), and a high pressure kettle is fixedly placed in block holes (4) of the hydraulic wrench workbench. The system and the method realize sealing or opening of the high pressure kettle through a quantified controllable super-large twist moment, so the screw thread of the high pressure kettle is well protected, and the sealing and opening operations of the high pressure kettle are quantified, thereby the reappearance, the efficiency and the success rate of hydrothermal / solvothermal high-temperature and high-pressure kettle are greatly improved.

A process for manufacturing products made of composite materials, is disclosed which includes the steps:screwing at least one insert provided with a threaded hole on the outer thread of at least one pin partially inserted in a removable manner in a mold;arranging on the mold one or more fiber layers provided with at least one opening in which the insert is arranged;curing resin with the layers arranged on the mold, so as to obtain a product made of a composite material which incorporates the insert and the layers; androtating the pin in the insert for removing it from the mold.The present invention also relates to a mold, devices and a kit which can be employed for carrying out said process, as well as to products manufactured with this process and / or these means.

The invention relates to the field of electronic wire machinery, and in particular to a stamping terminal crimping mechanism. The mechanism comprises a frame, a die head, a die head upper adjusting block, a die head torsion adjusting bar, a stamping head and two die head guiding columns, wherein a threaded hole for the matching of the die head upper adjusting block and the die head torsion adjusting bar is provided with an opening along the axial direction, a certain distance exists between two sides of the opening in a natural state, and screws are arranged in the vertical direction of the opening surface. The scheme of the invention adopts the above structure, a tension adjusting mechanism is arranged between the die head upper adjusting block and the die head torsion adjusting bar, whenusers need to adjust the height of the stamping head by rotating the die head torsion adjusting bar, the tension adjusting mechanism is first loosened, and then the tension adjusting mechanism is tightened after the height of the stamping head is determined, and thus threads of the die head torsion adjusting bar can be protected, and damages can be reduced.

The invention discloses a high-strength screw rod dedicated hoisting tool of a tension-free cast-in-place pile fan foundation, which solves the problems that the working efficiency of hoisting a high-strength screw rod of an existing tension-free cast-in-place pile wind power generator foundation is low and a screw buckle of the high-strength screw rod is easy to damage. The high-strength screw rod dedicated hoisting tool comprises a rectangular hoisting plate base (9); the high-strength screw rod dedicated hoisting tool is characterized in that the front side edge of the rectangular hoisting plate base (9) is provided with U-shaped grooves (8) at intervals, the front side of the top surface of the rectangular hoisting plate base (9) is provided with an inserting plate (2) with an inserting hole, the rear side of the top surface of the rectangular hoisting plate base (9) is provided with a high-strength screw rod nut supporting plate (5), the rectangular hoisting plate base (9) is provided with two hoisting lug plates (1) and two hoisting rings (7), the front side edge at the right end of the rectangular hoisting plate base (9) is provided with a plug pin locking groove (10), and a pin shaft of an L-shaped plug pin (6) is movably inserted in the inserting hole of the inserting plate (2). The high-strength screw rod dedicated hoisting tool disclosed by the invention has the advantages that the construction is simple, and the use is convenient; and the working efficiency of hoisting is increased.

The invention discloses a motor capable of adjusting any arc surface of a terminal box through a rubber pad. The motor comprises a motor shell, a motor rubber pad and a motor terminal box, wherein themotor shell is cylindrical, the motor terminal box comprises a round angle rectangular panel and a wire box with a right-angled triangular section, the slope of the wire box is connected with the panel, the right-angled surface of the wire box is connected with the motor rubber pad, the edge of the right-angled surface of the wire box is provided with a group of opposite parallel chutes, a groupof opposite round angle rectangular holes is arranged in the center of the right-angled surface of the wire box, one side of the motor rubber pad is a plane fitted with the right-angled surface of thewire box, the other side thereof is an arc surface fitted with the motor shell, and two sides of the motor rubber pad are provided with insertion sheets fitted with the chutes. The rubber material helps changing the angle of the arc due to the elasticity, so as to adjust the arc surface, thereby being suitable for various motors, and reducing production cost.

The invention relates to a drilling tool adapter, which comprises a connector, a small core tube and a core tube, wherein one end of the small core tube is positioned in the inner part at one end of the core tube, the other end of the small core tube is provided with an inner rubber spring and an outer rubber spring, the small core tube and the core tube are both arranged in the connector, a clamping key is arranged between the connector and the core tube, the top upper end of the connector is provided with a rear pressing cover which is fixed on the connector through a fastening piece, and one end of the core tube, which is positioned at the outer part of the connector is provided with a spring. In the invention, when the drilling tool adapter is rotated tightly with a drilling tool, larger impact force of the drilling tool adapter with motive power can be acted on the drilling tool, the impact to the drilling tool can be effectively reduced through a rubber spring assembly, and thus the threads of the drilling tool and the connector can be protected; and when the drilling tool adapter and the drilling tool are unscrewed to separate, the unscrewing and the separating can be processed at the same time depending on the acting force of the spring, thus the threads are protected, and the threads of the drilling tool are prevented from being drilled by the drilling tool adapter on site. According to the drilling tool adapter, the protection for the drilling tool during an idle motion is effectively realized, and the drilling tool is prevented from being damaged when shackling.

The invention relates to the field of electronic wire machinery, in particular to a punching end mechanism, including: frame, die head, die head upper adjustment block, die head torsion bar, punching head, two die head guide columns, die head upper adjustment block An opening is arranged in the axial direction on the threaded hole matched by the block and the torsion bar of the die head. In the natural state, there is a certain distance between the two sides of the opening, and a screw is arranged on the vertical direction of the opening surface. The present invention adopts the above-mentioned structure, and an elastic adjustment mechanism is provided between the adjusting block on the die head and the torsion rod of the die head. When it is necessary to rotate the torsion rod of the die head to adjust the height of the stamping head, loosen the tension adjustment mechanism first, and then the height of the punching head is determined. Tighten the tightness adjustment mechanism to protect the thread of the torsion rod of the die head and reduce damage.

The invention relates to an afforestation tool for a region of a difficult-site type. The afforestation tool comprises a handle, a nursery-grown plant root pitting device, a digging device and a locating device, wherein the two ends of the handle separately comprise a first end and a second end, the nursery-grown plant root pitting device is detachably connected to the first end of the handle, and the middle part of the digging device is rotatably connected to the second end of the handle; and the locating device is mounted on the handle and is used for locating the digging device when the digging device is rotated to a preset position. According to the afforestation tool, the nursery-grown plant root pitting device and the digging device are separately arranged at the two ends of the handle, so that the afforestation tool has a pitting function and also has a digging function, the digging of nursery-grown plant planting platforms and planting holes in slopes of arsenic rock is facilitated, and the survival rate and working efficiency of afforestation are increased.

The invention discloses a storage cabinet structure which comprises a storage cabinet rack, wherein a holding cavity which passes through front and back is formed in the middle point of the storage cabinet rack; a holding plate is arranged on the lower end surface of the holding cavity; a plurality groups of drawing boxes are distributed at equal intervals up, down, left and right at the lower end of the holding plate; a plurality groups of hung cabinets are arranged at the upper end of the holding cavity; handles are respectively arranged at the hung cabinets and the front end surfaces of the drawing boxes; a rollover prevention device is arranged on the upper side of the hung cabinets in a storage cabinet rack top base; the rollover prevention device comprises a fixing rack which is fixedly mounted in a holding well and a left fastening arm and a right fastening arm which are moveably mounted in sinking grooves in the rear end of the storage cabinet rack top base in a left and right symmetric manner; a guide groove which extends front and back and is communicated with the sinking grooves is further formed in the storage cabinet top base; a guide rod is mounted inside the guide groove in a sliding manner. The storage cabinet structure is simple in structure, convenient to use, stable to operate and high in security.

The invention provides a functional spraying and combustion visualization measuring constant volume bomb. The constant volume bomb includes a bomb body and 6 windows provided on the bomb body. The axes of all windows intersect at the center of the constant volume bomb so as to form a measurement region. The windows can be provided with adaptive covers having different functions. The constant volume bomb is designed to have multiple sealing, such that the constant volume bomb can withstand extreme pressure and temperature loads, and the large range of warm pressing can be adjusted. The constant volume bomb is designed to have adaptors which ensure the constant volume bomb can use various types of sensors. The bomb body is provided with a plurality of air inlet guide holes thereon, which can ensure stabilization of air inlet pressure and keep the measurement region unaffected, and also keep quartz windows from being polluted by oil mist and combustion products, thus achieving on-going measurement. According to the invention, the constant volume bomb can provide flexible light path arrangement for one or a group of multiple measurement technologies of shadow / schlieren, laser induced flourescense, particle imaging velocity measurement and spectrum temperature measurement, etc. The constant volume bomb has tight structure, can research spray atomization, evaporation, air blending, gas mixture distribution, combustion and process product characteristics, etc, has a wide range of measurement parameters, and has universality.