31results about How to "Solve the difficulty of taking out" patented technology

The invention discloses an easily-removing implant device and a screwing-out tool thereof. The easily-removing implant device comprises an implant, a base station and a central bolt; the easily-removing implant device is characterized in that the implant comprises a gum-penetrating neck part and a head part, wherein a thread is formed on the outer surface of the head part, at least two spiral self-tapping grooves are also formed in the outer surface of the head part, a connecting hole coaxial with the implant is formed in the implant, the connecting hole comprises a tapered hole, an anti-rotation hole, an implant taking-out section and a blind threaded hole, which are sequentially connected coaxially, the base station comprises a dental crown connecting section and an implant connecting section, the implant connecting section comprises a conical table and an anti-rotation column, a stepped hole matched with the central bolt is formed in the base station, and the central bolt penetrates through the stepped hole to be connected with the blind threaded hole, so that the base station and the implant are fixed integrally. According to the easily-removing implant device, the implant taking-out section with a reverse thread is additionally arranged in the implant, the problem that a part of the implant, which is remained in dentale due to fracture of the implant, is difficult to take out is solved, and the easily-removing implant device has the advantages of simple structure, strong practicability, and the like.

The invention relates to a concrete drilling and sampling machine. The concrete drilling and sampling machine comprises a drill. The concrete drilling and sampling machine is characterized by further comprising a platform, wherein an inner cavity is arranged in the middle of the platform; the drill is arranged on the platform and is fixedly connected; the upper end of a drill bit is fixedly connected with a power output shaft of the drill; a coring device is arranged in the drill bit; one end of the coring device protrudes out of the drill bit; the lower end of a cooling circulation device is arranged in the inner cavity of the platform, the upper end is arranged in the drill bit and is fixedly connected with the drill bit, and the middle is fixedly connected with the drill; and a splash guard is sleeved on the drill bit and forms a slip connection. The drilling and sampling operation can be performed by injecting cooling water into a water tank, placing the sampling machine on a concrete slab, regulating and fixing the coring device to the upper end of a sliding chute, and sleeving the splash guard on the drill bit; and a sample can be taken out from the drill bit by stopping the drill after drilling to a predetermined depth, loosening a nut of the coring device and pressing a horizontal lever downwards.

The invention discloses an injection mold with a water blowing device. The mold comprises a mold body, an injection molding groove is formed in the upper end of the mold body, a round groove is formedin the inner bottom of the injection molding groove, a disc is in sliding connection with the inner wall of the round groove, the lower end of the disc is fixedly connected with a vertical rod, a groove is formed in the side wall of the mold body, a screw is rotatably connected to the inner wall of the groove, a jacking mechanism for jacking the disc is mounted on the screw, a sliding groove is formed in the side wall of the mold body, a first driving mechanism used for driving the vertical rod to rotate is mounted in the sliding groove, the screw rotates to enable a sliding block to slide, through a connecting rod, the vertical rod is pushed to move upwards, the disc is further pushed to move upwards, a product on the disc is jacked out, the product can be conveniently taken out, when asingle-way sliding plate slides back and forth on the inner wall of a water storage box, water in the water storage box is continuously extruded to enter a cooling pipeline, continuous circulation ofthe water in the cooling pipeline can be achieved, and product cooling is quickened.

The invention relates to the technical field of medical materials and provides a degradable biliary stent. The degradable biliary stent is a magnesium alloy degradable biliary stent. The magnesium alloy degradable biliary stent comprises a plurality of ring-shaped supporting parts distributed in the radial direction and used for radial supporting during ball expansion and a plurality of connectingparts distributed in the axial direction and used for axial connection with the adjacent ring-shaped supporting parts to form a net-like structure. The magnesium alloy degradable biliary stent replaces a non-degradable biliary stent, serves as a ball expansion stent to be implanted at the narrow part of biliary lesion and plays a drainage effect in a support, and the phenomenon can be avoided that the limitations of a stent tube cause complications or the non-degradable biliary stent is difficult to take out. Different from a covered stent, the stent is difficult to displace and has a wider lesion position application range. It is proved through animal experiments that the biliary tracts at the suture parts of experimented animals in an experimental group are smooth and free of biliary sludge or lithogenesis by applying the magnesium alloy degradable biliary stent, and the stent is completely degraded in the eighth week.

The invention discloses a gas generator forming device. The gas generator forming device comprises an ignition body forming device and a finished product forming device which are used for closing of a die and a positioning base. The positioning base is used for fixing a base or a semi-finished product. The die is of a cylindrical structure provided with a hollow structure and provided with an opening in one end, the die can vertically move relative to the positioning base, and an annular concave face is arranged at the position of the opening of the die and used for extrusion closing of the base or a product. The invention further discloses a gas generator forming method. An electric ignition pipe or an ignition body is fixed to the base, a press is started, the die vertically moves relative to the positioning base, the base or the product is extruded through the annular concave face of the die, pressure maintaining is conducted for a certain time, and the assembled product is taken out. The gas generator forming device is high in automation degree and simple in structure, forming of a gas generator can be efficiently conducted with the high quality, and the burden of manpower is relieved. According to the device, automatic product taking out is achieved by further utilizing elasticity of elastic components.

The invention discloses a full-automatic optical lens polishing and cleaning production line which comprises a feeding device, a polishing device, a transferring and conveying device, a cleaning device and a drying device, the feeding device is arranged on one side of the polishing device, and the transferring and conveying device is arranged between the discharging end of the polishing device and the feeding end of the cleaning device; the drying device is arranged at the discharging end of the cleaning device. The lens polishing, cleaning and drying device can realize polishing, cleaning and drying of a lens together, the whole process is automatically carried out, the working intensity of workers is greatly relieved, the production efficiency is improved, and the production cost is reduced.

The invention discloses a basket welding tool, which includes a handle, an arc guide rail, four product brackets, a rotating shaft disc, four linear slide rails, four connecting rods, four fixing seats and a base: the base is a cuboid, The four product brackets are respectively fixed on the four corners of the base, the arc guide rail is fixed on one side of the base, the handle is on the same side as the arc guide rail and there is a positioning device on the handle that restricts the movement in the arc guide rail, turning the handle drives the rotating shaft When the disc rotates, the connecting rod connecting one end to the quarter point of the rotating shaft and the other end to the fixed seat rotates, driving the fixed seat to advance and retreat on the linear slide rails, and the four linear slide rails are respectively fixed on the four sides of the base . The invention realizes the positioning of parts to be welded in place at one time, solves the problems of difficult removal and high deformation rate of basket products after welding, and improves production efficiency.

The invention provides a bone filling bag and a preparation method thereof, the bag is provided with a plurality of layers of net structures from inside to outside, each layer of net structure comprises a first balloon, a second balloon and a waist tightening structure connected with the first balloon and the second balloon; a plurality of eyelets are formed in each layer of net-shaped structure, and the apertures of the eyelets in the net-shaped structure are sequentially decreased from the inner layer to the outer layer. The bone filling bag is of a multi-layer waisted structure, the problem of stress concentration of a circular structure is effectively relieved, the mechanical property of the bag is improved, leakage of a bone filling material caused by breakage of the bag is prevented, surrounding non-treated tissue cannot bear compression of overlarge stress, the bag is easy to take out, and the bone filling bag is convenient to use. The problem that the bag is difficult to take out after an operation is solved, the hole diameters of the multiple layers of net structures of the bag are sequentially decreased from the inner layer to the outer layer, bone cement can be filtered layer by layer, the dispersing force and injection force of the bone cement are improved, and the bone cement is evenly dispersed in the designated position.

The invention discloses a double-ejection mechanism of a mold. The double-ejection mechanism of the mold comprises a lower fixing plate, mold legs and a movable mold plate. A first ejector plate is arranged on the lower fixing plate. A second ejector plate is arranged on the first ejector plate. An ejection rod which penetrates through the first ejector plate is arranged on the lower fixing plate in a penetrating mode. The ejection rod makes contact with the second ejector plate. A first ejector is arranged on the first ejector plate. A second ejector is arranged on the second ejector plate. A first limiting column is arranged on the first ejector plate. A second limiting column is arranged on the second ejector plate. A resin opening and closing device is arranged at the upper end of the first ejector plate. An insertion hole is formed in the second ejector plate. The resin opening and closing device is inserted into the insertion hole. A return pin which penetrates through the movable mold plate upwards is arranged on the second ejector plate. According to the double-ejection mechanism, through double ejection, a product is ejected out and separated from a mold core and the ejectors of the mold, and accordingly the product can fall automatically or be taken out easily; and the product quality is improved, the efficiency is improved, and the cost is reduced. In addition, the two ejector plates can be pressed back and restored through the return pin.

The invention discloses a winding wheel disc which is used for winding and bundling a steel rope for an elevator and comprises a winding shaft of which a center shaft is rotatably fixed to a bracket, as well as a first rope blocking disc and a second rope blocking disc which are arranged at the two ends of the winding shaft respectively, wherein the winding shaft is driven by a drive device to rotate for winding the rope; the outer diameter of the winding shaft is gradually reduced in a direction from the first rope blocking disc to the second rope blocking disc; the second rope blocking disc is detachably mounted at the end part of the winding shaft. During rope winding, the outer diameter of the winding shaft is reduced from one end to the other end, so that the inner circle of a wound steel rope loop keeps the gradient as well and the wound steel rope loop can be taken out from the winding shaft in a relatively easy manner by the gradient; the second rope blocking disc at the corresponding end of the winding shaft is removable and can be removed when the steel rope loop needs to be dismounted, and the steel rope loop is dismounted from the second rope blocking disc, so that the takeout difficulty of the steel rope loop is greatly lowered.

The invention discloses a method for replacing a pre-embedded anchor bolt of a concrete tower drum. The method comprises the following steps of 1, taking out an upper section of the pre-embedded bolt, and inserting a conductive tube (7) into a preformed hole and contacting with the top of a lower section (6) of the pre-embedded bolt; 2, electroslag welding flux (8) is poured into the conductive tube; 3, connecting an electroslag welding machine (9), the conductive tube, the lower section of the pre-embedded bolt, a lower anchor plate (3) and the intact pre-embedded bolt (5) to form a current loop; 4, the electroslag welding machine is powered on to melt the electroslag welding flux, and the conductive tube is welded to the lower section of the pre-embedded bolt; 5, after the electroslag welding flux is cooled, the conductive tube and the lower section of the pre-embedded bolt are connected into a whole, and the conductive tube is rotated to drive the lower section of the pre-embedded bolt to be synchronously rotated and disassembled; and 6, taking out the conductive tube and the lower section of the pre-embedded bolt, and installing a new embedded bolt. According to the method, the lower section of the pre-embedded bolt fractured in the preformed hole of the concrete shell ring can be quickly taken out, so that the convenient replacement of the pre-embedded anchor bolt is realized.

The invention provides a full-film-coated self-expanding recyclable biliary tract metal stent. The stent comprises a stent body, a recycling line and an assembly line. The stent body is formed by weaving nickel-titanium alloy wires and is in a grid shape. The two ends of the stent body are spherical, and the stent body is cylindrical. The inner surface and the outer surface of the stent body are both coated with silica gel films. The recycling line is an annular metal wire, one end of the recycling line penetrates through and winds around the alloy wire at the head end of the stent body, and the other end of the recycling line is led out of a cavity of the stent body. The assembly line is an annular metal wire and penetrates through and winds around the alloy wire at the tail end of the stent body. The stent can be completely placed in the common bile duct and used for supporting the common bile duct of benign and malignant stenosis without damaging the leakproofness of the common bileduct, and the probability of stent blockage and reflux cholangitis after an operation is low. The completely exposed head end of the stent body is spherical and can prevent the stent from shifting. By pulling the recycling line exposed out of the duodenum cavity, the head end of the stent body is tightened and enters the cavity of the stent body, the stent is gradually separated from the bile duct mucosa, and therefore the resistance of taking out the stent is greatly reduced.

The invention belongs to the technical field of block chains and specifically relates to a block chain network node service device oriented to a multi-block-chain platform. The block chain network node service device oriented to the multi-block-chain platform comprises a tower frame, a base, a clamping cap and a controller; multiple solar panels are fixedly connected to the surface of the tower frame; the base is fixedly connected to the top of the tower frame through a bolt; the upper surface of the base protrudes outwards and is designed in an arc shape; a connecting groove is formed in themiddle part of the upper surface of the base; the upper surface of a first contact is designed to protrude outwards; the lower surface of the clamping cap is concave and designed in the form of an arcsurface; a clamping column is fixedly connected to the middle part of the lower surface of the clamping cap; a second contact is fixedly connected to the lower surface of the clamping column; a clamping ring is fixedly connected to the lower surface of the clamping cap; the clamping ring is positioned on one side, far away from the clamping column, of a first extruding groove; and a second clamping groove is formed in the upper surface of the base. According to the block chain network node service device oriented to the multi-block-chain platform, the problem that equipment is damaged, the manual conveying cost is time wasting and labor wasting and the danger coefficient in the manual overhauling process is high in the manual conveying process are effectively solved; and the service lifeof the block chain network node is long.

The invention discloses a lifting type ultrasonic cleaning machine. The lifting type ultrasonic cleaning machine comprises a machine shell and a cleaning tank arranged in the machine shell. Lifting supports are arranged on the two sides of the cleaning tank. The top ends of the lifting supports are connected with an upper cover. The upper cover ascends and descends along with the lifting supports. A connecting frame is arranged below the upper cover and provided with a cleaning basket placing opening. Each lifting support comprises a supporting rod, an outer guide rail, an inner guide rail and a lead screw, wherein the supporting rod is arranged in the outer guide rail, the lead screw is arranged in the inner guide rail, the upper end of the outer guide rail and the upper end of the supporting rod are fixed to the upper cover, the lower end of the supporting rod is connected with a lead screw nut on the lead screw, and the lower end of the lead screw is connected with a servo motor. According to the lifting type ultrasonic cleaning machine, a lifting frame is adopted for lifting the upper cover, a cleaning basket ascends along with the connecting frame, after cleaning is finished, the upper cover can move upwards by a small distance firstly, and after cleaning water vapor is released, the upper cover is completely lifted to drain water of the cleaning basket and then the cleaning basket is taken out. The lifting type ultrasonic cleaning machine is simple in structure, and the problems that the upper cover is hard to open, the cleaning basket is hard to take out, and the water vapor is emitted when the upper cover is opened can be effectively solved.

The invention provides a lock clamp extractor, which comprises a base body, which comprises an insertion part and a connection part forming an angle with the insertion part, and the insertion part can be inserted and fixed in a fixing groove for placing a lock clamp; the first operating handle comprises a first handle body and a force application straight section connected with the end of the first handle body, and the force application straight section abuts against the connecting part; the second operating handle comprises a second handle body hinged to the first handle body through a hinged shaft, a guide section connected with the end of the second handle body and a horizontal force application section connected with the guide section, the horizontal force application section can apply thrust to the end of the lock clamp, and the guide section is in horizontal guide fit with the connecting part; the horizontal force application section protrudes out of the insertion part in the insertion direction of the insertion part. According to the technical scheme, the problem that in the prior art, it is difficult to take out the locking device from the fixing groove is effectively solved.

The invention discloses a mold capable of achieving double ejection of a B plate. The mold comprises a front mold body and a rear mold body. The front mold body comprises a panel and an A plate. The rear mold body comprises a lower fixing plate, an insert fixing plate and the B plate arranged on the insert fixing plate. An insert is fixed to the insert fixing plate, and the insert penetrates into the A plate and the B plate forwards. A nylon opening and closing device is connected between the A plate and the B plate. A first control screw penetrating into the A plate is arranged on the B plate. A compression spring is arranged on the first control screw. A second control screw is arranged at the bottom of the A plate. A third control screw is arranged behind the second control screw. A center hole is formed in the second control screw. The third control screw can move along the center hole. An ejector roller is connected to the bottom of the third control screw. According to the mold, through double ejection of the B plate, the problems that a plastic product cannot be taken out easily due to the ejection, the product is prone to scratches when taken out, and the forming cycle is long are well solved, the product quality is remarkably improved, the efficiency is improved, and the labor cost is reduced.