66results about How to "Effective fixation" patented technology

The invention relates to a single-action double-pipe coring overburden drill tool for an air down-the-hole hammer. The single-action double-pipe coring overburden drill tool comprises a central coring drill tool and an overburden drill tool. The central coring drill tool is a single-action double-pipe coring drill tool and comprises a single-action vibration reduction mechanism, an inner pipe adjusting mechanism and a coring mechanism with a bayonet device; the single-action vibration reduction mechanism comprises an impact connector, a disc spring, a bearing block, a connecting shaft, a thrust ball bearing and a radial ball bearing; the inner pipe adjusting mechanism comprises a connecting shaft, a core pipe connector, an inner pipe and a nut; the coring mechanism with the bayonet device comprises an outer pipe, an inner pipe, a connecting shaft, a core pipe connector, a coring drill bit, a rolling needle, a pawl spring seat and a pawl spring; the overburden drill tool comprises a casing, a casing connector, a casing shoe, a clamp ring and a casing drill bit. The single-action double-pipe coring overburden drill tool for the air down-the-hole hammer is applicable to relevant fields such as geological mineral exploration and engineering geological survey for complex formation with loose sand, cobbles, gravel, fracture, breakage and the like.

The invention belongs to the technical field of metal pipe machining, particularly relates to a pipe orifice grinding device for metal pipe machining. Aiming at the problems that a fixing mechanism ofa traditional pipe grinding device is simple and the fixing effect is general, the following scheme is provided, the pipe orifice grinding device comprises a workbench with legs welded at four corners at the bottom, a pipe fixing mechanism and an adjusting polishing mechanism are mounted on the two sides of the top end of the workbench correspondingly, the pipe fixing mechanism comprises a sliding plate slidably connected to the workbench and second stand columns welded to the two ends of the top of the sliding plate, a first stand column is welded to the other side of the workbench, and fixing supporting rings are welded to the top end of the first stand column and the top end of one of the second stand columns and rotationally connected with extending ends. Through mutual cooperation among the arranged fixing ring, the arranged threaded abutting rod and the arranged arc-shaped pressing plate, the metal pipe can be effectively fixedly grinding, and the situation that the grinding quality is affected due to shaking in the grinding process is prevented.

The invention provides a sargassum horneri seaweed bed human-induced restoration device which comprises a secondary reef, an intermediate incubator and a primary reef, wherein the intermediate incubator comprises a protection body and a base; a cylindrical groove is formed in the center of the top surface of a base; the diameter of the protection body is the same as the diameter of the secondary reef and the inner diameter of the groove of the base; the secondary reef is arranged between the protection body and the base by virtue of the intermediate incubator; and the shape of the primary reef refers to two asymmetric triangular inclined surfaces which are connected with each other and are provided with connecting bolts and permeable holes. The invention also provides a sargassum horneri seaweed bed human-induced restoration method. The method comprises the following steps: performing seedling collection on the secondary reef, performing workshop cultivation, then cultivating in the intermediate incubator with a low tidal region between tides, fixing the secondary reef on the primary reef, and throwing into the seabed target restoration position. According to the device and method disclosed by the invention, the healthy and strong degree of seedlings can be enhanced, the probability of seedling removal is effectively reduced after the seedlings are put into the sea, and the survival rate of the seedlings at the seabed is improved; and moreover, the secondary reef is convenient to mount and detach, and even if the secondary reef is put into the seabed along with the primary reef, the secondary reef can be manually taken down, and later tracing observation is conveniently realized.

The invention provides a machine tool for pipe body tapping, which relates to the electromechanical field. The machine tool for pipe body tapping includes a bed body, the bottom of the bed body is fixedly connected with support legs, the top of the bed body is fixedly connected with two fixed blocks, and the sides of the two fixed blocks are provided with push screws The threaded ends of the two push screw rods both pass through the fixed block and extend between the two fixed blocks. Two clamping blocks are arranged between the two fixing blocks, and the sides of the two clamping blocks that are far away from each other are fixed The first bearing is connected, and the threaded ends of the two push screw rods are located between the two fixing blocks and are fixedly sleeved with the first bearing. This machine tool is convenient for pipe body tapping. The transmission motor drives the rotation of the main gear and the transmission gear, so that the slider can move horizontally to the left inside the chute. Carry out positioning tapping, effectively improve the accuracy of tapping and improve the tapping efficiency.

The present invention discloses a mending joint of photoelectric complex of submarine cable, which comprises a barrel and cover plates arranged on two ends of barrel. The submarine cable passes through the cover plates and is jointed in the barrel. Each cover plate is provided with a sealing fixing piece. A group of conductive tension rods which is electrically connected with the sealing fixing piece is installed between the sealing fixing piece and the barrel. The submarine cable in the barrel is provided with two inner barrels which cooperate with each other. A two-component resin is provided in the two inner barrels. The external surface of barrel is provided with an optical cable joint package. The optical cable is connected with the optical cable joint package through the barrel. The two-component resin is provided in the optical cable joint package. The mending joint according to the invention has the advantage that two ends of submarine cable are fixed as the sealing fixing piece is installed. The disconnection of joint of submarine cable under external force function is prevented. The electric connection between the armoured steel wires at two ends of submarine cable is ensured through the installation of conductive tension rod. As an optical cable joint package is provided, the optical fiber is connected with the joint package through the barrel and guarantees the electric connection of optical cable. The installation of double-component resin has the functions of corrosion prevention and waterproof sealing.

The invention belongs to the technical field of optical fiber testing, and particularly relates to an optical fiber strength testing method which comprises a bottom plate with supporting legs welded to the four corners of the outer wall of the bottom, side plates welded to the outer walls of the two sides of the bottom plate, a table plate welded to the outer walls of the opposite sides of the side plates, and a limiting end plate fixedly installed at the middle end of the table plate, the two ends of the limiting end plate are slidably connected with a fixed end block and a pulling block correspondingly, arc-bottom notches and arc-bottom short grooves which are distributed at equal intervals are formed in the top end of the fixed end block and the top end of the pulling block correspondingly, and the arc-bottom notches and the arc-bottom short grooves are distributed in a staggered mode. According to the invention, through the arrangement of the arc bottom notch, the arc bottom short groove, the arc bottom insertion end and the short insertion pin, effective fixation processing of an optical fiber is realized in the mutual matching process; through the trapezoidal auxiliary blocks arranged on the sides, opposite to the arc bottom notch and the arc bottom short groove, of the arc bottom insertion end and the short insertion pin, the optical fiber fixing stability can be effectively improved, and therefore it is guaranteed that testing operation is conducted smoothly.

The invention provides a light emitting diode and a preparation method thereof. A circuit board and a heat conducting seat are provided. The circuit board comprises an insulating plate, a metal layer arranged on the lower surface of the insulating plate, at least one electrode layer arranged on the upper surface of the insulating plate and a through hole passing through the circuit board. The metal layer of the circuit board or the heat conducting seat is provided with solder, and the circuit board and the metal layer thereof are welded on the heat conducting seat; and a light emitting diode chip is arranged on the heat conducting seat through the through hole of the circuit board, and the light emitting diode chip is electrically connected to the electrode layer of the circuit board by a metal wire. By taking advantage of the fact that the heat expansion coefficient of the solder is similar to the heat expansion coefficients of the circuit board and the heat conducting seat and that the solder is not easily worsened to lose adhesion effect, the circuit board and the heat conducting seat can be effectively fixed.

The invention discloses a tree seedling fixing and correcting device with an irregular watering function and used for tree planting. Aiming at the problem that tree seedlings have dependence on watering due to regular and quantitative watering every day, thus being extremely not conducive to the growth of the tree seedlings, the invention proposes the following scheme that the tree seedling fixingand correcting device comprises a fixing frame; a fixing plate is connected onto each of the outer walls of two sides of the fixing frame in a snap manner; the top end of each of the two fixing plates is fixedly connected with a transverse plate; the outer wall of one side of each transverse plate is fixedly connected with a spraying box; the outer wall of one side of each spraying box is fixedlyconnected with spraying pipes distributed equidistantly; and the outer wall of the top part of each transverse plate is fixedly connected with a water storage tank. According to the tree seedling fixing and correcting device, under pushing of a piston plate, the air pressure of one end of a connecting pipe is reduced; the atmospheric pressure presses water stored in the water storage tank into the spraying boxes; such irregular watering simulates raining of nature, so that trees seeking out water sources in uncertainty and trying hard to take root are likely to cultivate, and such trees can adapt to severe environments, and thus, the trees grow better.

The invention belongs to the technical field of workpiece clamping devices, and particularly discloses a generator end cover clamping device. The generator end cover clamping device comprises a base,a supporting mechanism, a rest mechanism and a limiting mechanism. The base comprises a pedestal, and the pedestal is provided with a supporting cylinder. The supporting mechanism includes a supporting disk, and the supporting disk is slidably connected with the inner cavity of the supporting cylinder. The reset mechanism comprises a supporting column, and the circumferential side wall of the supporting column extends outwards to form pushing pawls. The limiting mechanism includes a plurality of limiting plates, limiting blocks and limiting rods, wherein the limiting plates are uniformly arranged on the periphery of a cylinder in an array mode. One ends of the limiting rods are fixedly connected to the outer wall of the supporting column, and the other ends of the limiting rods are slidably connected to inner cavities of the limiting plates. The generator end cover clamping device solves the problem of complex fixation mode.

The invention relates to a leakage test clamp for an exhausting manifold. The leakage test clamp comprises a clamp body, the middle portion of the clamp body is provided with a cushion block, four sealing rings are mounted on the cushion block, cylindrical pins are mounted in the upper left and right ends of the cushion block respectively, and the rear end of the cushion block is provided with a pipe joint; the upper rear part of the clamp body is provided with two No.1 clamping and fixing devices, and the upper front part of the clamp body is provided with a No.1 clamping and fixing device and a No.2 clamping and fixing device; and a shoe plate is arranged beside the rear side of the cushion block, the shoe plate is provided with jack screws in a threaded manner, a support is arranged beside the front side of the cushion block, the support is provided with a screw in a threaded manner, and the rear end of the screw is provided with a plug. On the basis that the exhausting manifold is positioned in two points, the exhausting manifold is fixed and compressed, and the is sealed via the sealing rings and the glug. further, ventilation and leakage test can be realized conveniently. In addition, the leakage test clamp is convenient to use and adjust, and the airtightness detecting effect is better.

The invention discloses a warp knitting transverse moving device and a warp knitting machine. The warp knitting transverse moving device comprises a faceplate and guide bars, the cross section of the faceplate is in a ring shape with different outer diameters, the ring shape is evenly divided into x transverse rows in the circumferential direction, and x is larger than or equal to 2 and smaller than or equal to 8; and at least two slopes are formed between the adjacent transverse rows on the outer surface of the faceplate. By adopting the structural design, a gradually gentle slope is designed and used for buffering and enabling the guide bar to move step by step, instability caused by the large span can be avoided, high precision and stability of the warp knitting machine in the fabric production process can be achieved easily, continuous production of the machine can be protected easily, and high speed of the machine can be realized.

The invention belongs to the technical field of road construction, and particularly relates to a foundation pit support device for road construction. Based on the problems that most traditional foundation pit support devices are simple in structure and common in support effect, the following scheme is proposed: the foundation pit support device comprises a mounting base; a main box body is fixed to the outer wall of the top of the mounting base through bolts; a material opening is formed in one side of the main box body; a servo motor is fixed to the outer wall of the top of the main box bodythrough bolts; and an output shaft of the servo motor is connected with a rotating column through a coupler and the rotating column is rotationally connected with the main box body. The warning effectof the device at night can be effectively improved, and the warning and protection effects of the device are improved; through the arrangement of a rocker, a threaded rod can be driven to rotate, andunder the limiting effect of a limiting sliding groove and a sliding block, a moving block is driven to effectively fix the device through a needle inserting rod; and inverted fork thorn rods distributed at equal intervals are arranged on the needle inserting rod, so that the fixing effect of a tube can be effectively improved.

The invention relates to the technical field of PVA (polyvinyl alcohol) composite films, particularly a PVA-base medical antibacterial composite film. The PVA-base medical antibacterial composite film comprises a PVA film layer and a PVA nonwoven fabric layer which are mutually compounded, wherein the PVA film layer is a blown film. According to the PVA-base medical antibacterial composite film, the PVA nonwoven fabric layer is compounded outside the PVA film layer; and the PVA nonwoven fabric is utilized to effectively fix the liquid pollutants by utilizing the characteristic of high porosity, thereby effectively protecting the PVA film layer from being dissolved by the liquid pollutants.

The invention belongs to the technical field of electromechanical engineering, and specially relates to a fixed base for electromechanical engineering. Most of traditional electromechanical fixed bases are simple in structure and poor in flexibility in use; presented here are solutions, the fixed base comprises a fixed round seat and a cylinder seat; a fixed cylinder rotationally connected with the cylinder seat through a bearing is welded to the top end of the fixed round seat, a cavity is formed in the bottom end of the fixed round seat, a lifting moving mechanism is installed in the cavity,a fixed mechanism is installed on the cylinder seat, and the lifting moving mechanism comprises a rotating plate and a fixed annular plate welded to the circumferential inner wall of the cavity. According to the invention, the conical teeth can be driven to rotate through a turntable; through speed reduction transmission, an operator can easily drive a threaded cylinder to rotate, and due to thefact that the lifting plate cannot rotate under the limiting effect of a limiting rod, the lifting plate can only move up and down, then a steering wheel can be conveniently retracted and released, and the fixed base can be conveniently fixed.

The invention belongs to the technical field of electronic product processing, particularly relates to a paint spraying device for processing an electronic product, and aims to solve the problems thatthe traditional paint spraying device is simpler in structure and poorer in paint spraying uniformity. According to the scheme, the paint spraying device comprises a top plate and a base, wherein four corners of the bottom of the base are welded with landing legs; stand columns are welded on the four corners of one side, opposite to the top plate, of the base; a rotary bearing mechanism is mounted on the base; a feeding mechanism and a lifting mechanism are mounted on the top and the bottom of the top plate separately; the rotary bearing mechanism comprises a fixed ring and a fixed bottom ring fixed on the base through a bolt; and a ring supporting plate is welded on the annular inner wall of the bottom end of the fixed ring. Through the rotary bearing mechanism, the paint spraying devicedrives a sheet metal plate waiting for paint spraying to rotate, so that paint spraying is more uniform; and through mutual cooperation of the fixed bottom ring, the ring supporting plate, an annulargroove and balls, the rotating stability of a bearing table can be improved.

The invention relates to a melamine foam and fiber blended preparation technology which comprises the following steps that (1), melamine foam waste is smashed into melamine foam smashed materials withirregular particle sizes for standby application; (2), one layer of melamine foam smashed materials obtained in the step (1) is laid on a conveyor belt through a paving device, and a bottom layer melamine foam smashed material layer with the thickness being 1-2 cm is obtained; (3), fibers are sprayed on the bottom layer melamine foam smashed material layer obtained in the step (2) with the sprayangle being 45 degrees to serve as a bonding layer; (4), one layer of melamine foam smashed materials obtained in the step (1) is laid on the bonding layer in the step (3), and a primary sectional material with a composite layer is obtained, wherein the thickness of the layer of melamine foam smashed materials is 1-4 cm; and (5), the primary sectional material obtained in the step (4) is hot-pressed through a hot-pressing machine under the state of 200-230 DEG C and is quickly cooled, and melamine foamed plastic is obtained. The melamine foam and fiber blended preparation technology has the advantages of being capable of saving energy, environmentally friendly, high in density, good in cleaning effect, durable and high in noise reduction coefficient.

The invention discloses an adjustable dissecting table for animal experiments, and a using method thereof. The adjustable dissecting table comprises a dissecting table body and a dissecting table plate, a cavity is formed in the top end of the dissecting table body, a partition plate is fixedly installed on the inner wall of the cavity, and the partition plate and the cavity form a sewage cavity located at the top end and a driving cavity located at the bottom end respectively; and the dissecting table plate is connected with one side of the sewage cavity through a hinge. A hydraulic driving mechanism is arranged to control and start a rotating motor, the rotating motor is used for driving a threaded lead screw to rotate, then a driving rod is driven to horizontally move, a piston push disc is made to form the push-pull effect, a push-pull rod in a connecting bobbin is made to move to the proper position according to the hydraulic principle, and after the push-pull rod moves to the proper position, an operator controls and starts a small electric telescopic rod, the end of the small electric telescopic rod is folded by pulling a movable inclined rod through a transmission rod by means of withdrawing of an extension rod of the small electric telescopic rod, and four limbs of an animal are effectively fixed by means of wave-surface rubber blocks and protrusions.

The invention discloses a fiber carrier for forming a film based on microalgae adsorbed by straw as well as a preparation method and application of the fiber carrier. The straw fiber carrier is used for adsorbing the microalgae and forming a biological film. A film forming method comprises the steps of (1) preliminary culture of microalgae inoculum; (2) preparing a straw fiber carrier bed layer; (3) culturing and harvesting a microalgae biological film; and (4) regenerating the microalgae biological film. The straw biological carrier is a microalgae biological film. carrier which is low in price, durable and easy to apply in a large scale, and a biological adsorbent is environment-friendly, rough in surface, high in yield, reproducible, wide in distribution and free of biotoxicity. While supporting microalgae cells to adhere and form a film, the composite film can be further used for removing various pollutants in wastewater, and can also be used as a raw material for producing organic fertilizers, high-activity biochar, energy sources and chemicals. When the fiber carrier is partially degraded into semi-rotten straw by fungi, the semi-rotten straw can be used as an organic compound fertilizer for ecological breeding or anaerobic fermentation for biogas production.