40results about How to "Easy to drill out" patented technology

The invention discloses a bridge plug with a large drift diameter. The bridge plug comprises an upper joint, a central tube, a guiding shoe head and a bridge plug assembly; the upper joint is an annular part and is fixedly connected with the outer side of one end of the central tube in a sleeving mode; the central tube is a metal central tube, a soluble ball base is arranged at the end, close to the upper joint, of the central tube, and the central tube is a drillable metal part; the guiding shoe head is an annular part, is fixedly connected with the outer side of the other end of the central tube in a sleeving mode and is provided with a device used for being fixedly connected with a pull rod which is arranged in the bridge plug in a sleeved mode; the middle section of the central tube is sleeved with the bridge plug assembly which is located between the upper joint and the guiding shoe head. The invention further discloses a setting method of the bridge plug with the large drift diameter. The drilling polishing procedure of the bridge plug with the large drift diameter can be omitted, the problems of a long construction period, high operation cost and high construction risk brought by drilling polishing are solved, and the bridge plug is easier and more convenient to use and faster to construct.

Provided are a tool and a method for injecting cement into the top of a horizontal well screen pipe without drilling and plugging. The tool for injecting the cement into the top of the horizontal well screen pipe without drilling and plugging is composed of a drilling-free and plugging-free tool, a bumping pressing rubber plug and a fishing tool. During construction, the drilling-free tool is lowered to the well along with a sleeve bunch. A well mouth is pressurized, a packer is sealed through expansion, pressurization is continued, a starting piston is opened, circulation is built, and well cementation is conducted normally. The bumping pressing rubber plug is added for bumping pressing at the later stage of the well cementation, the piston is closed simultaneously, a circulation channel is closed, and the well cementation is finished. After cement curing is finished, fishing is conducted through a small drill pipe connected with a fishing anchor, the small drill pipe and the fishing anchor are lifted after being in place, slips are opened, a fishing drum is blocked, an internal structure of the drilling-free tool is lifted together, and construction is finished. During a working process, a well completion accessory used in the process is not affected by drilling and grinding, service life is greatly prolonged, diameter in a well completion pipe column is large, the inner surface of the well completion pipe column is smooth, and smooth implementation of acid washing and gravel packing is guaranteed. Well completion working time of a single well is reduced by 24 hours on average, and well completion cost is greatly saved.

The invention discloses an agricultural automatic digging and fertilizing seeder. The agricultural automatic digging and fertilizing seeder comprises supporting rods arranged at the bottom of a base; wheels are arranged at the bottoms of the supporting rods; the upper end of the base is connected with an upper seat board by support rods; secondary oil cylinders are arranged on the bottom surface of the upper seat board; a lifting plate is arranged on telescopic shafts of the secondary oil cylinders; a rotational drill bit is arranged at the center of the lifting plate; a fixed barrel is arranged at the bottom center of the lifting plate; a telescopic cylinder is arranged in the fixed barrel; a material storing box is arranged on the upper end face of the lifting plate; a lower end opening of the material storing box is communicated with a material guiding sleeve; the material guiding sleeve sleeves a material spreading box; material spreading holes are formed in the material spreading box; the lower end of the material spreading box is fixed in the telescopic cylinder; the drill bit is located in the fixed barrel; the drill bit sleeves a quill shaft; the upper end of the quill shaft is connected with a mounting plate; the mounting plate is connected with the secondary oil cylinders; the secondary oil cylinders are vertically arranged at the bottom of the upper seat board; an opening/closing head is arranged at the lower end of the drill bit; a working hole is formed in the base. According to the agricultural automatic digging and fertilizing seeder disclosed by the invention, automatic digging, planting and fertilizing as well as earthing can be realized, so that the agricultural planting efficiency is greatly improved.

The invention discloses an automatic material mixing, processing, fertilization and planting device for agriculture. The upper end of a base is connected to an upper seat plate, the bottom surface of the upper seat plate is connected to a lifting plate through an auxiliary oil cylinder, the center of the lifting plate is provided with a drill bit, the bottom of the lifting plate is provided with a fixed cylinder, a telescopic cylinder is arranged in the fixed cylinder, the drill bit sleeves a casing pipe shaft, the casing pipe shaft is connected to the auxiliary oil cylinder, the lower end of the drill bit is provided with an opening/closing head, the upper end of the upper seat plate is provided with a material guide cylinder, the upper end of the material guide cylinder is provided with the fixed cylinder, the front end of the fixed cylinder is provided with a stirring cylinder, spiral blades are arranged in the stirring cylinder, the tail end of the stirring cylinder is provided with filter holes, the front end of the stirring cylinder is provided with a digging groove, the lower end of the stirring cylinder is provided with a farm chemical box, the casing pipe shaft is arranged in the material guide cylinder, a feeding plate is arranged in the material guide cylinder, the feeding plate is provided with a material blocking plate and a sliding hole, the casing pipe shaft is provided with a pull rod, the lifting plate is provided with a material storage box, the material storage box is communicated with a material guide sleeve, the material guide sleeve sleeves a material scattering box and the material scattering box is fixed in the telescopic cylinder. The device realizes automatic material mixing and burrowing, mass planting and soil covering and improves the efficiency of crop planting.

The invention discloses agricultural automatic mixing and planting equipment. An upper seat board is connected to the upper end of a base; the bottom surface of the upper seat board is connected with a lifting plate by secondary oil cylinders; a drill bit is arranged at the center of the lifting plate; a fixed barrel is arranged at the bottom of the lifting plate; a telescopic cylinder is arranged in the fixed barrel; the drill bit sleeves a quill shaft; the quill shaft is connected with the secondary oil cylinders; an opening/closing head is arranged at the lower end of the drill bit; a material guiding cylinder is arranged at the upper end of the upper seat board; the fixed barrel is arranged at the upper end of the material guiding cylinder; a stirring barrel is arranged at the front end of the fixed barrel; spiral blades are arranged in the stirring barrel; filtering holes are formed in the tail end of the stirring barrel; material digging grooves are formed in the front end of the stirring barrel; a pesticide box is arranged at the lower end of the stirring barrel; the quill shaft is arranged in the material guiding cylinder; feeding plates are arranged in the material guiding cylinder; material stopping plates are arranged on the corresponding feeding plates; a sliding hole is formed in each feeding plate; a pull rod is arranged on the quill shaft. According to the agricultural automatic mixing and planting equipment, automatic mixing and drilling, automatic batch planting and automatic earthing can be realized, so that the planting efficiency of crops is greatly improved.

The invention relates to the technical field of fruit tree cultivation, and discloses a method for treating walnut seeds before sowing. The method comprises the following steps that walnut seeds are placed in a seed soaking barrel to be soaked with hot water, fishes out to be dried at the shady, cool and ventilated place for 1-2 d, soaked with warm water, fished out and dried for 2-3 d; the walnut seeds are stored with wet river sand layer by layer, 7-9 layers are laid all together, and the uppermost layer is the sand layer; a container is placed in a greenhouse, hothouse or plastic house, the walnut seeds are sprayed with water one time every 12 h, and sand storage is kept for 3-7d. According to the walnut seeds treated through the method, at the eighth day, the germination rate reaches 80%; at the fourteenth day, the germination rate reaches 85% or more, operation time is short, the effect is achieved rapidly, the germination rate is high, operation is convenient, and the method is suitable for being applied and popularized.

The invention relates to a well cementation rubber plug used for a seabed oil well. The seabed oil well is connected to a marine riser extending to the sea surface, a casing pipe is arranged in the seabed oil well, a hollow drill pipe communicated with the casing pipe is arranged in the marine riser, and the well cementation rubber plug is arranged in the casing pipe. The well cementation rubber plug comprise a basal plug and a top plug, wherein the basal plug and the top plug can be connected in series with each other in a separated mode, both the basal plug and the top plug comprise a perforative cavity, the cavity of the basal plug is provided with a radial-shrinkage part and a downstream area of the radial-shrinkage part is provided with a through-hole which can be opened and closed and an entitative type basal plug opening tool, the basal plug opening tool can penetrate through the cavity of the top plug and is jointed with the radial-shrinkage part of the basal plug, both the basal plug and the basal plug opening tool are provided with a plug wing of which the radial direction extends outwards, the plug wing of the basal plug can be in close contact with the inner wall of the casing pipe, and the plug wing of the basal plug opening tool can be in close contact with the inner wall of the drill pipe. When the well cementation rubber plug used for the seabed oil well is used, mud in the casing pipe and the drill pipe can be discharged, thus the quality of the well cementation is improved.

The invention relates to a welding method of a composite copper bar conducting layer. A welding part of a lead workpiece is positioned on a mounting part of a copper bar substrate by a positioning structure, so that next welding is facilitated. After positioning, a resistance soldering technology instead of chamfering is adopted, so that the mounting part can be arranged in any position of the copper bar substrate, the lead workpiece can be welded on the mounting part, a complicated composite copper bar product comprising a small forming part structure is obtained, and the welding strength and the connection reliability are improved. A non-welding part of the lead workpiece is placed in a heat-dissipation mold, so that heat of the non-welding part of the lead workpiece conducted by welding can be dissipated by the heat-dissipation mold, the non-welding part of the lead workpiece can avoid softening deformation and hardness and strength reduction due to overheating, the hardness and the strength of the non-welding part are ensured, and torsion resistance of riveting a nut in a non-welding area is ensured. In addition, the invention further relates to a composite copper bar.

The invention discloses perforating equipment convenient to pick and place an electronic component. The perforating equipment comprises a supporting rack, a first slide rail, a placing table and a base, wherein a hydraulic cylinder is arranged on the upper side face of the supporting rack and is connected to a top plate through a hydraulic rod; the hydraulic rod and the top plate are arranged on the inner side of the supporting rack; chutes are formed in the left and right inner side walls of the supporting rack, and the left and right ends of the top plate are arranged on the inner sides of the chutes; a motor is arranged on the lower side face of the top plate, and a drill bit is arranged on the lower side of the motor; the first slide rail and a second slide rail are fixed between the left and right inner side walls of the supporting rack, the first slide rail is arranged on the lower side of the top plate, and meanwhile, the second slide rail is arranged on the lower side of the first slide rail. As a baffle plate is arranged, the baffle plate penetrates a proper first empty slot by a user as needed, so that a roller is fixed to a proper position.

The invention discloses a method and a percussion bit for drilling a back taper hole in a concrete wall. The method includes adding a ball on a handle of the percussion bit, clamping a spherical clamp seat onto the ball of the handle which rotates, with the center of the ball as the support, within the clamp seat; during drilling, subjecting the percussion bit perpendicular to the wall to drilling downwards, and after the clamp seat is abutted against the wall, shaking the handle to drill with the center of the ball with the support, allowing the bottom of the bit to rotate at the bottom of the hole, in this way, a big-end-down back taper hole is formed. The method is simple and practical and convenient to drill the back taper hole in the wall. Through the back taper hole, the bottom of an expansion bolt is fully expanded, and friction between the expansion bole and the wall of the back taper hole is greatly improved, so that pull force applied to the expansion bolt is more than doubled. By the use of the method easy to handle, safety is improved after construction site supports or pipelines assembly, and construction is convenient.

A bi-directional eccentric crankshaft center hole processing clamp is mainly composed of a center hole processing guide plate, a connecting rod, a flat cushion, an elastic cushion and a nut and the like. A bi-directional eccentric crankshaft is placed between two center hole processing guide plates to be connected to be an integrated body by utilizing the connecting rod, the flat cushion, the elastic cushion and the nut, the integrated body is clamped on a drilling machine, and three center holes are drilled in the end face of the crankshaft by rapid and accurate positioning through the center hole processing guide plates.

The invention discloses an intelligent multidirectional synchronous punching device for a vehicle-mounted brake pump shell. The device comprises a clamping and feeding device and a multidirectional angle adjusting device, the clamping and feeding device comprises a three-axis moving part, an L-shaped bottom plate arranged at the execution end of the three-axis moving part, an inclination angle adjusting part arranged on one side of the L-shaped bottom plate, and a clamping part is arranged at the execution end of the inclination angle adjusting part. The multidirectional angle adjusting device comprises a vertical plate, a transverse moving part arranged on one side of the vertical plate, a rotating part arranged at the execution end of the transverse moving part, a U-shaped supporting frame arranged at the execution end of the rotating part, L-shaped supporting frames rotationally connected with the U-shaped supporting frame, and included angle adjusting parts arranged between the U-shaped supporting frame and the L-shaped supporting frames. Fixing frames are arranged at one ends of the L-shaped supporting frame and the U-shaped supporting frame, drill bit switching parts are arranged at the bottoms of the fixing frames, and intelligent drill bit driving parts are arranged at the tops of the fixing frames. The punching device can synchronously punch workpieces at multiple angles and in multiple directions.

The invention provides an oil hole drilling tool. The oil hole drilling tool comprises a rotating frame, a tool body and a cylinder. The rotating frame comprises a handle, a rotating rod and a gun frame. The handle is fixedly connected with the rotating rod connected with the gun frame. The tool body comprises a bottom support and a supporting plate. The bottom support comprises a bottom plate, a left supporting plate and a right supporting plate, wherein the length of the left supporting plate and the length of the right supporting plate are respectively larger than the length of the bottom plate. The cylinder is arranged on the front of the bottom plate and is arranged on the tail portion of one end of the bottom plate, and the left supporting plate is fixed to the left edge of the back of the bottom plate. The right supporting plate is fixed to the right edge of the back of the bottom plate. One end of the left supporting plate and one end of the right supporting plate are aligned with the end, provided with the cylinder, of the tail portion of the bottom plate. The oil hole drilling tool can be used for fixing a lug plate and precisely drilling holes, can guarantee that same oil holes meeting precision requirements can be drilled in the same portions of products respectively, has practicability, and can be used for easily and conveniently drilling qualified oil holes.

The invention discloses an ecological restoration device for acid soil in a mining area. The ecological restoration device comprises a restoration base, a power column and a stabilizing column are arranged on the upper portion of the restoration base, and a lifting plate is arranged between the power column and the stabilizing column; a lifting motor is arranged on the lower portion of the lifting plate, an output shaft of the lifting motor is connected with an assembly part, and a spiral lifting blade is detachably installed on the assembly part. A positive and negative rotation motor is started, a driving bevel gear rotates, a driven bevel gear rotates, a power rotating shaft rotates, a threaded area rotates, the threaded area is in threaded connection with a screw block, the screw block moves to drive a through rod to move, and then a lifting plate is driven to move; the stabilizing column is sleeved with a stabilizing sleeve, and the stabilizing sleeve moves, so that the moving stability of the lifting plate is improved; by driving the spiral lifting blade to move downwards and starting the lifting motor at the same time, the spiral lifting blade can be conveniently drilled out, then soil is dug out, sampling is facilitated, and the working efficiency is improved compared with manual work.