1438results about How to "Not easy to shift" patented technology

The invention discloses a power inductance element formed by molding. The power inductance element comprises a prefabricated magnetic core, a coil and a magnetic plastic package layer, wherein the coil is placed on the prefabricated magnetic core; the magnetic plastic package layer is formed by molding and is used for covering the magnetic core and the coil; and an electrode connected with the coil is exposed. The invention also discloses a method for manufacturing the power inductance element formed by molding. The method comprises the following steps of: a, prefabricating the magnetic core and placing the coil on the prefabricated core; and b, covering the magnetic plastic package layer on the magnetic core and the coil by virtue of molding and exposing the electrode connected with the coil. The power inductance product has the advantages of thinning, miniaturization and high reliability.

The invention relates to a degradable human body stent capable of effectively preventing transposition and reducing hyperplasia. The degradable human body stent is characterized by comprising a reticulate body structure, a skirt stacking type degradable laminating membrane, at least one developing sign and a covering membrane. The skirt stacking type degradable laminating membrane and the developing sign are additionally arranged on multiple sections of reticulate bodies to be used for identifying the human body implantation position of the human body stent during human body developing. The reticulate body structure is composed of the multiple sections of reticulate bodies, and the multiple sections of reticulate bodies are connected in series, so that the multiple sections of reticulate bodies are bent to a certain degree relative to others under the stress effect, and a channel is formed between the multiple sections of reticulate bodies. The multiple sections of reticulate bodies are formed by degradable materials. The peripheries of the multiple sections of reticulate bodies are covered by the covering membrane, the membranes of the whole stent are like fish scales, and one section of skirt is stacked below a next section of skirt. The one or more developing signs are additionally arranged on the multiple sections of reticulate bodies to be used for identifying the human body implantation position of the human body stent during human body developing.

The invention discloses a welding device for a special-shaped bent pipe. The special-shaped bent pipe is installed on a working platform. The special-shaped bent pipe comprises a plurality of horizontal sections and a plurality of oblique sections. The horizontal sections are parallel to the working platform. An included angle is formed between each oblique section and the working platform. The welding device for the special-shaped bent pipe comprises at least one first supporting mechanism used for supporting the horizontal sections, at least one second supporting mechanism for supporting the oblique sections, a limiting mechanism used for limiting the movable end of the special-shaped bent pipe, at least one first clamping mechanism for clamping the special-shaped bent pipe, and a second clamping mechanism for clamping the middle portion of the special-shaped bent pipe. The welding device is simple in structure, the special-shaped bent pipe is clamped and positioned, looseness and displacement are not likely to happen, the welding precision of the special-shaped bent pipe is effectively guaranteed, welding application of a welding machine is facilitated, the welding and assembling efficiency is improved, welding errors are reduced, and the welding quality of products is improved.

The invention discloses an anti-restenosis digestive tract stent which is characterized in that a main body (1) is formed by connecting a plurality of stent units (2) and an easily-bent connecting part (3), wherein two ends of the connecting part (3) are respectively connected with the corresponding stent unit (2), the main body (1) is of a right circular cylinder structure which is easy to bend or a composite structure which is easy to bend and consists of a cylinder and a cone; and each stent unit (2) is of an integral structure formed by carving a metal pipe material or a structure formed by weaving a silk material, and the connecting part (3) is formed by weaving a metal line material or plastic line material with good flexibility. The anti-restenosis digestive tract stent has better radial supporting strength and better compliance, and ensures that the stent has the advantages of more accuracy of positioning, difficulty in translocation, low restenosis incidence and the like.

The invention discloses an involvement type prosthetic heart valve stent with barbs and a preparation method thereof, and belongs to the technical field of involvement type medical devices. The stent is an elastic stent which can stretch or retract in a radial direction, and comprises a tubular structural part and a skirt-shaped open structural part; the diameter of the skirt-shaped open structural part is greater than that of the tubular structural part; the tubular structural part and the skirt-shaped open structural part are coaxially and fixedly connected; barks are also arranged in the stent; the barbs extend from the tubular structural structure to the skirt-shaped open structural part and are tilted to the outer side of the stent. The stent can extend and retract in the radial direction so as to facilitate the mounting, the transporting and the releasing in involvement treatment; the stent structure is matched with the physiological structure of a natural valve, has a certain self-positioning function, and is convenient to position and release quickly and accurately; the barbs can penetrate into the tissues around the valve after the heart valve is planted into a specific position so as to achieve a positioning effect; displacement and perivalvular leakage are not easily caused after the valve is released.

The invention relates to a regulating intracranial intravascular thrombus extraction device. The thrombus extraction device is provided with an adjusting guide wire, a thrombus extractor and an outer fixing sheath, wherein one end of the thrombus extractor is fixedly connected with the outer fixing sheath through a fixer, and the other end of the thrombus extractor is fixedly connected with a head-end developer through a fixer; the adjusting guide wire is also fixedly connected to the head-end developer, penetrates through the outer fixing sheath and the thrombus extractor, and is fixedly connected with a handle; a knob and a graduated scale are arranged on the handle. The thrombus extraction device has the advantages that the operability is high, the position of the thrombus extractor can be accurately regulated, the diameter of the thrombus extractor can be intuitively controlled, and thrombus can be completely captured and prevented from falling off; the thrombus can be firmly fixed, and compared with a conventional self-expanding thrombus extractor, the thrombus extraction device is higher in controllability and safety; the adjusting guide wire is controlled to accurately control the position, extension position and withdrawal position of the thrombus extractor by the knob and the graduated scale, and errors are small.

The invention relates to the field of building material processing equipment, in particular to a wood cutting device for forestry engineering. A rectangular through slot is formed in the middle end ofthe right end of a base; an L-shaped seat plate is fixedly connected into the rectangular through slot; a wood collecting box is placed onto the L-shaped seat plate; a feeding slide base is fixedly connected onto the base; the wood collecting box is positioned below the right end of the feeding slide base; a wood fixed slide base is connected on the feeding slide base; a power device is fixedly connected to the front end of the base; the power device is in transmission connection to a cutting assembly through a belt; and the cutting assembly is fixedly connected to the right end of the base.The wood cutting device can fix wood, and the fixed wood is not liable to deviate, so that wood cutting is more smooth, wood scrap is avoided, and waste of wood resources is avoided; and an intermittent feeding mechanism can automatically feed the fixed wood to cut, so that a constructor is prevented from risk during operation.

The invention relates to the field of equipment for a casting technique, in particular to a cold iron and core rod combining device for casting of a sand core of a generator cylinder block and a manufacturing method. The cold iron and core rod combining device for casting of the sand core of the generator cylinder block comprises a core box which is used for forming the semi-cylindrical sand core, wherein an arc-shaped inner molded surface is formed in the bottom of the core box, and a cold iron and core rod combining device body which is connected fixedly and used for core manufacture is arranged in the core box. According to a cold iron and core rod structure, cold iron 4 and a core rod framework can be fixedly connected firstly before sand filling, complicated work of manual placement of the cold iron is avoided during sand filling, and the positioning accuracy of the cold iron 4 and the sand filling efficiency are improved; the cold iron and core rods are fixed through welding and the like, mechanical compaction can be performed after sand filling, and the compactness of the sand core is improved.

The invention discloses a blade spraying protective fixture which is used for being connected to spraying equipment so as to protect the lower surface of a blade edge plate and a tenon. The blade spraying protective fixture comprises a fixture body, a first stopping block, a second stopping block and locking pieces, wherein the fixture body is used for being connected with the spraying equipment and provided with a containing groove used for containing the tenon; the containing groove penetrates through the two side walls of the fixture body and communicates with the upper end surface of the fixture body; outwards convex positioning flanges extending in the length direction of the containing groove are symmetrically arranged on the two side walls of the containing groove so as to be used for supporting and positioning the long edges of the blade edge plate and enabling the upper surface of the blade edge plate to be exposed out of the upper end surface of the fixture body; the first stopping block and the second stopping block are arranged at the two ends in the length direction of the containing groove correspondingly so as to be used for blocking the two ends of the containing groove and being matched with the positioning flanges to support and position the short edges of the blade edge plate; the first stopping block and the second stopping block are both partially embedded in the containing groove and abut against the tenon located in the containing groove so as to clamp and fix the tenon; and the locking pieces are used for locking the first stopping block and the second stopping block with the fixture body.

An efficient wall drilling machine comprises a base, a first cylinder is arranged on the base, and a piston rod of the first air cylinder is fixedly connected to the lower side of a rotating device; fixing frames are arranged on the two sides of the rotating device, and a telescopic scale rod is fixedly connected between each fixing frame and the base; the upper end of the rotating device is connected with a fixing base, and a sliding groove is formed in the horizontal direction of the fixing base; a drilling device is slidably connected with the interior of the sliding groove, and a damping device is connected to the vertical direction of the fixing base; the damping device is connected with a second cylinder, and a piston rod of the second cylinder is connected with the drilling device;a hollow connecting pipe is fixedly connected to the upper end of the fixing base, and a scale rod is inserted into the front end of the connecting pipe; the scale rod is fixed into the connecting pipe through a locking bolt, and a vacuum suction cup is arranged at the front end of the scale rod. The drilling machine is reasonable in design, the working efficiency can be effectively improved, thedrilling positioning precision and quality are improved, and the flexibility and the safety are achieved.

The invention relates to a wheel profile laser measurement device. An electromotor is fixed on one end of a base, and is connected with a drive screw, and an incremental photoelectric encoder is mounted on the other end of the drive screw; a guide rod which is parallel with the drive screw is arranged on the base as well, and the bottom of the base is fixed on a rail through supporting blocks; a movable slider is sleeved on the guide rod, and also cooperates with the drive screw by means of screw threads; a movable rod is fixed on the movable slider, a laser head of a laser displacement sensor is fixed on the top of the movable rod, the serial port and the USB port of the laser displacement sensor are respectively connected with the serial port and the USB port of a computer, and the signal output end of the incremental photoelectric encoder is connected with the control signal input end of the laser displacement sensor. The test device can conveniently measure the abrasion change of a wheel profile on the spot; moreover, the device is convenient to carry and easy and convenient to operate, the measurement precision is high, and the repeatability of test data is good.

The invention discloses an optical cable splice box, and aims at providing a splice box which is good in matching and low in accuracy requirement and can ensure a sealing effect during bearing and heating. The optical cable splice box comprises an upper half box and a lower half box, wherein the upper half box and the lower half box are connected to forma box body; at least two optical fiber hole frames are arranged at the two ends of the box body respectively; each optical fiber hole frame comprises an outer section and an inner section; optical fiber inlet sleeves are arranged in the outer sections; the inner sections consist of half slots in the lower half box and half slots in the upper half box; corresponding elastic clamp sleeves are arranged in the half slots; sealing grooves are formed in the upper half box and the lower half box; sealing strips are arranged in the sealing grooves; the sealing strips and the elastic clamp sleeves are connected to form sealing rings; each sealing strip is 0.5-1mm higher than an opening of each sealing groove; and cross sections of the sealing strips are trapezoids with outward large bottom edges. The optical cable splice box has the benefits that an assembling accuracy requirement is low; the cost is saved; displacement is not easy to generateat butting parts of the sealing rings; the sealability is good; and a reinforcing structure is arranged in the box body, so that the compressive capacity and the overall strength are high.

The invention discloses a sanitary napkin cutting machine. According to the technical scheme, the sanitary napkin cutting machine comprises a frame, a napkin cutting mechanism, a conveying mechanism used for conveying the sanitary napkins, a drive mechanism driving the conveying mechanism to convey the sanitary napkins, and a control device used for controlling the napkin cutting mechanism, the conveying mechanism and the drive mechanism to operate; the napkin cutting mechanism comprises a rotary cutter used for cutting the sanitary napkins, a first motor driving the rotary cutter to rotate, and a swinging device driving the rotary cutter to swing in a reciprocating manner; the conveying mechanism comprises an input component and a output component; the rotary cutter is placed between the input component and the output component. The rotary cutter swings adjacent to or far from the sanitary napkins in a reciprocating manner, efficient cutting can be implemented by matching with the conveying mechanism, the notches are smooth after cutting, structure is simple, space required by the rotary cutter is small, and the size of the cutting machine can be reduced effectively.

The invention discloses UV-moisture dual-curing liquid optical cement. The UV-moisture dual-curing liquid optical cement is prepared from, by weight, 45-80 parts of UV moisture curing matrix resin, 10-50 parts of tackifying resin, 10-35 parts of reactive diluents, 0.3-5 parts of photoinitiator and 1-5 parts of additive. The matrix resin and the tackifying resin have unique molecular structures. The invention further provides a preparation method of the UV-moisture dual-curing liquid optical cement. The preparation method comprises the following steps that the matrix resin and the tackfying resin are prepared; then all the materials are placed in a planetary vacuum mixer and are stirred and mixed to be uniform, and the finished product is obtained through filtering and defoaming. The problem of cement overflow that common liquid optical cement cannot overcome and the problem that the common liquid optical cement is not suitable for the special lamination process of UV precuring, lamination and moisture curing for cement overflow prevention are solved, a cement film formed by the UV-moisture dual-curing liquid optical cement after primary UV curing has moderate bonding strength and a good locating effect, the bonding strength is greatly improved after moisture curing, the surface of the cement film is very smooth, a certain edge shape is kept, no edge collapse phenomenon occurs, and the UV-moisture dual-curing liquid optical cement is suitable for automatic equipment coating.

The invention provides an artificial aortic valve support implanted through a guide tube. The artificial aortic valve support comprises a support and an artificial valve. The support is weaved from an elastic-fiber-shaped material, is in a dumbbell structure, and comprises a head, a waist and a tail, and a layer of biocompatible film is covered on an outer surface of the head of the support, and a mounting anchor is mounted at the tail of the support. A conveying system for conveying the support is further provided and comprises an epitheca, an inner core, a loader, a push bar and a fixed head. The mounting anchor at the tail of the support is mounted on the fixed head, and the artificial aortic valve support is conveyed to an inner body through puncturing. The support is close to physiological anatomical structure and is capable of self-expanding separation, and an artificial bio-valve is adopted and is close to the functions of the artificial valve. And the conveying system can be slightly transformed from the conveying system of a heart disease stopper, so that apparatuses used for treating structural heart disease become standard and normal gradually, and meanwhile, resources are also saved and consumption is lowered.

The present invention provides a flat silencer. In the silencer (50B), A clearance (H1) between a first bottom (144) and a second bottom (147) is configured to be less than a minimum width (W1) of a side wall portion (143) viewing from a direction orthogonal to the first bottom (144). The flat silencer (50B) is formed in the direction orthogonal to the first bottom (144). Thereby, the flat silencer (50B) is formed.

The invention relates to the technical field of building construction, in particular to a manual hole digging pile structure. The manual hole digging pile structure comprises a pile hole, a protectivewall and a steel reinforcement cage, wherein the pile hole is formed in the ground, the protective wall is fixedly connected with the hole wall of the pile hole, the steel reinforcement cage is positioned in the pile hole, the protective wall is provided with a plurality of fixing holes, the steel reinforcement cage is fixedly connected with a plurality of fixing cylinders in one-to-one correspondence with the fixing holes in position, fixing rods matched with the fixing holes in an inserted mode are matched in the fixing cylinder in a sliding mode, and a transmission mechanism for driving the fixing rods to slide along the fixing cylinders is arranged in the steel reinforcement cage. The manual hole digging pile structure has the effect that the steel reinforcement cage is not prone to shifting when concrete is poured, and accordingly has the effect of improving the forming quality of a cast-in-place pile.

The invention relates to fodder crushing equipment, in particular to fodder crushing and drying integrated equipment for raising livestock. According to the fodder crushing and drying integrated equipment for raising livestock, the equipment is good in crushing effect, the crushed fodder can be dried, the fodder is not prone to being damp and getting mildewed, and the financial loss is decreased. The fodder crushing and drying integrated equipment for raising livestock comprises a bottom plate, supports, a collecting frame, fixing columns, a fodder-stopping funnel, a fixing block, a crushing device and the like. The top of the bottom plate is vertically provided with the supports in a left-right symmetrical bolted connection. The tops of the inner side surfaces of the two supports are horizontally provided with the fixing columns in bolted connection. According to the fodder crushing and drying integrated equipment for raising livestock, the effects that the crushing effect is good, the crushed fodder can be dried, the fodder is not prone to being damp and getting mildewed, and the financial loss is decreased are achieved.