65results about How to "Not easy to insert" patented technology

The invention discloses a slow-release polycarboxylate superplasticizer and a preparation method thereof. The preparation method comprises specific steps as follows: firstly, small unsaturated carboxylic acid monomers and diphenylphosphinyl chloride are subjected to a partial reaction, and small unsaturated monomers containing phosphate ester groups are obtained; then 2-phenylethylamine and phosphate ester groups are added to a reaction system and subjected to a reaction, and small unsaturated monomers containing amide groups are obtained; the small unsaturated monomers containing the amide groups are subjected to an oxidation-reduction free radical polymerization reaction with unsaturated polyether macromonomers under the action of an initiating agent, a reducing agent and a chain transfer agent, and a copolymerization product is obtained; pH value is adjusted to 6-7 after the reaction, water is added, and the polycarboxylate superplasticizer is obtained. The amide groups containing benzene rings are introduced to side chains of the prepared polycarboxylate superplasticizer, so that the dispersibility of the polycarboxylate superplasticizer for cement is improved, the polycarboxylate superplasticizer has good slump retaining performance on the premise of water reduction, and besides, the yield of the polycarboxylate superplasticizer containing the amide groups can reach 94% or higher.

The invention relates to an assembled buckle structure which comprises a substrate (2) to be inserted in a decorative strip (1). The lower end surface of the substrate (2) is provided with a clamping part which is clamped in a mounting hole (31) of a counterpart piece (3). The assembled buckle structure is characterized in that the clamping part comprises a plurality of elastic strips (4) which extend downwards and are arranged at intervals, the elastic strips are encircled into a loop matched with the shape of the mounting hole on the counterpart piece, and the lower part at the outer side of each elastic strip is provided with clamping pins (41) which protrude outwards and gradually expand from bottom to top; and a bolt (5) is inserted from bottom to top in the space encircled by the elastic strips, and the peripheral surface of the bolt acts on the inner end surfaces of the elastic strips so that the elastic strips keep the outwards bracing trend. Because of the favorable elasticity of the elastic strips, the interference between the clamping pin size and the mounting hole is smaller, the elastic strips can be inserted in the mounting hole by only needing small inserting force, and the peripheral surface of the bolt can brace the elastic strips outwards so that the elastic strips are clamped in the mounting hole and hardly drawn out.

The invention discloses a steel-wood combining constructional column formwork and a construction method thereof. The steel-wood combining constructional column formwork comprises a constructional column wood formwork and a steel formwork arranged on the constructional column wood formwork, the constructional column wood formwork is fixed to the outer side of a constructional column through doublesteel pipes and split bolts, and wall bodies are arranged on the two sides of the constructional column. The steel formwork comprises a steel formwork body, two parallelly-arranged triangular bafflesand a supporting plate fixed to the steel formwork body through hinges; the steel formwork body is of a U-shaped axis symmetric structure, the two vertical parts are two lug plates, and the transversepart is a connecting plate; the supporting plate is arranged in a groove of the steel formwork body; the supporting plate and the connecting plate are connected and fixed through hinges; the supporting plate has the same thickness as the steel formwork body; openings are formed in the positions, closely attached to the upper corners in the two corners of the lug plates, of the two triangular baffles; blocking rod clamping grooves are formed through enclosing and fixing of the openings and the lug plates; and a blocking rod for blocking and fixing of the supporting plate is erected between thetwo blocking rod clamping grooves. The steel-wood combining constructional column formwork and the construction method thereof have good practical and popularization value, and can generate good economic benefits after extensive application and popularization.

The invention discloses a cold-rolling strip steel threading method, which belongs to the field of strip steel rolling. The cold-rolling strip steel threading method comprises the steps of (1) being in no hurry to pull a strip tail over a rolling mill after the rolling of a previous strip steel is completed and the strip tail is separated from a jaw; (2) carrying out feeding operation of a next strip steel by an uncoiling worker, and feeding the head part of the next strip steel to the outer side of an inlet oil scraper roller of the rolling mill; (3) enabling the uncoiler running speed V (uncoiling) to be equal to the rolling mill running speed V (rolling mill) after the tail part of the previous strip steel and the head part of the next strip steel are in up-and-down lap joint; (4) stopping the feeding by the uncoiling worker when the head part of the next strip steel reaches to the position of an outlet guide roller of the rolling mill by successfully penetrating through the rolling mill along with the tail part of the previous strip steel; and (5) coiling the tail part of the previous strip steel, and coiling the tail part of the previous strip steel to a steel coil. According to the cold-rolling strip steel threading method disclosed by the invention, a cold-rolling strip steel is prevented from being firstly inserted in a roller seam clearance between a working roller of the rolling mill and an intermediate roller or under an oil spray guide plate during a twenty-high rolling mill threading process, and successful threading operation is realized.

The invention provides a process for making welding pad on a substrate, the substrate includes a first dielectric layer and a first conducting layer, first forming a second conductive layer on the substrate surface, then proceeding a heat treatment process, to form a third conductive layer in the first and second conductive layer, at the same time oxygenizing completely the residual second conductive layer to form a second dielectric layer, lastly forming a third dielectric layer, and removing each of the dielectric layer above the first conductive layer.

The invention discloses a heating device of an electronic cigarette atomizing head. The heating device comprises a sleeve-shaped heating piece and a liquid adsorbing absorbing piece which is wrappesd at the outer surface of the heating piece, wherein the liquid adsorbing absorbing piece is formed by mutually jointing at least two liquid adsorbing absorbing parts; in such a way, when assembling is performed, the liquid adsorbing absorbing piece can be used for wrapping ed at the outer surface of the heating piece only by placing the liquid adsorbing absorbing parts of the liquid adsorbing absorbing piece at the outer part of the heating piece and jointing the liquid adsorbing absorbing parts together, so that the assembling is performed fast and simply.

The invention discloses a high-impedance coaxial connector for a sensor. One end of a main seat is matched with a glass tube in a locked mode, the other end of the main seat is matched with a contact connecting cap in a locked mode, a contact outer ring comprises a male contact outer ring butt-joint seat and a male contact outer ring body which are arranged in sequence from outside to inside in a coaxial mode, the glass tube is sleeved with and coaxial with the male contact outer ring butt-joint seat, a wire passing hole is formed in the axis of the male contact outer ring body, a male contact inner core is located inside the male contact outer ring body, a first tin inlet is formed in the side wall, corresponding to the wire passing hole, of the male contact inner core, the first tin inlet is communicated with the wire passing hole, a reference lead is fixedly connected with the inner wall of the male contact outer ring butt-joint seat, and a measurement lead extends into the wire passing hole and is connected with the male contact inner core. After being assembled, the glass tube and a male contact form a coaxial assembly, angular defection cannot occur, after the high-impedance coaxial connector is connected, the waterproof and dustproof performance can reach level IP168, and the connector is convenient and fast to disassemble and assemble. The reference lead does not need to be bent, and the service life of the sensor is prolonged.

The invention provides a low-temperature electronic cigarette heating pipe and a preparation method thereof. The electronic cigarette heating pipe comprises a heating piece, a heat insulation piece and a base, wherein the bottom of the heat insulation piece is fixedly connected with the base, the heat insulation piece is of a tube body structure provided with a closed cavity, the heating piece comprises a heating piece base material and a heating circuit, and the heating circuit is fixedly arranged on the heating piece base material; and the base is made of an insulation material, a power supply device is arranged in the base, and the heating piece is electrically connected with the power supply device. The preparation method comprises the steps of slurrying, vacuum defoaming, tape casting, heating circuit printing, heat insulation piece green body preparation, winding forming, isostatic pressing, glue discharging and sintering, lead bonding and assembling. The heating pipe has a goodheat insulation effect, the energy utilization rate of the heating pipe is greatly improved, the product structure and the preparation method are very simple, the product manufacturing cost is low, and the user experience comfort is greatly improved.

The invention relates to a multi-core writing tool, wherein a plurality of writing cores are accommodated in a shaft sleeve and are convenient in replacement. Meanwhile, the outer peripheral surface of the rear portions of the shaft sleeve (12) is equipped with a vertical hole (16a) and the rear end of the vertical hole is closed. An operation body (24) connected with the rear portions of the writing cores (20) can freely enter and exit in the radial direction of the vertical hole (16a). Therefore, when replacing the writing cores (20), the operation body (24) and the writing cores (20) connected with the operation body can be taken out in the radial direction thereof. Meanwhile, the operation body (24) and the writing cores (20) can also be inserted via the vertical hole (16a).

The invention provides a surface contact rectifying diode. The surface contact rectifying diode comprises an anode lead (1), a cathode lead (2), an aluminum alloy electrode (3), a PN junction (4), a silicon N type crystal (5), a gold-antimony alloy layer (6) and a bracket (7), wherein the anode lead (1) is connected with the aluminum alloy electrode (3); the aluminum alloy electrode (3) is connected with the PN junction (4); the PN junction (4) is connected with the silicon N type crystal (5); the silicon N type crystal (5) is connected with the gold-antimony alloy layer (6); the gold-antimony alloy layer (6) is connected to the bracket (7); the cathode lead (2) is also connected to the bracket (7); and the anode lead (1) and the cathode lead (2) are coated with an adhesive layer (8) and a copper-nickel alloy layer (9) in sequence. The surface contact rectifying diode has the technical effects that (1) a pin is prevented from being bent or fractured; and (2) the pin is prevented from being inserted too deeply during embedding, and unstable welding is avoided.

The invention discloses an optical-fibre-embedded glass plate and a manufacturing method thereof. The optical-fibre-embedded glass plate comprises a glass plate having an upper surface and a lower surface, wherein at least one optical fibre is vertical to a surface of the glass plate and embedded into the glass plate; and at least one end of the optical fibre is exposed out of the upper surface or the lower surface of the glass plate. The optical-fibre-embedded glass plate can realize vertical transmission of a high-speed light signal between chips. The optical-fibre-embedded glass plate is simple in manufacturing process and low in cost and solves the problems that the glass substrate is difficult to hole and has a complicated hole-filling process.

A long-tail clamp comprises a clamp body, wherein the clamp body comprises clamping edges and a ridge portion, a clamping groove is formed in the ridge portion, one face of the clamping groove is open, and the opening of the clamping groove points to the clamping edges. The clamping groove comprises a first straight baffle and first transverse baffles, wherein the first straight baffle is fixed to the ridge portion, the first transverse baffles are connected to the first straight baffle in a lap joint mode, a strip-shaped protrusion is arranged on the portion, located on the opening of the clamping groove, of the ridge portion, and the height of the strip-shaped protrusion is smaller than the height of the first straight baffle. A label is arranged in the clamping groove, and the label is matched with the clamping groove. The label is arranged on the long-tail clamp, the label is well combined with the clamping groove and is not prone to falling, files are convenient to find, time is saved, and daily working efficiency is improved.

The invention belongs to the technical field of injection, and discloses an injection needle. The needle comprises an injection end, a connection end and a pressing end which are integrally connected,and the pressing end, the connecting end and the injection end are sequentially communicated; an inflating valve is arranged in a pressurizing end, only when a valve core of the inflating valve is pressed toward an injection end, the pressurizing end is communicated with outer environment fluid, a sharp portion inserting into a tree is formed on the front end of the injection end, the front end of the injection end is also provided with at least one injection hole, and the injection hole is located at the rear side of the sharp portion. The invention also discloses an injection method for injecting by using the above-mentioned injection needle. By directly inserting the injection needle into a tree for injection operation, the wound of the tree can be minimized, and the mold, bacteria andinsects do not easily enter.

The invention provides an optical module which comprises an upper shell, a lower shell, an optical engine, an optical port bracket and an optical fiber adapter, the upper shell covers the lower shell, the upper shell and the lower shell form a containing cavity, and the optical engine is arranged in the containing cavity; first limiting pieces are symmetrically arranged at one end of the upper shell, and second limiting pieces are symmetrically arranged at one end of the lower shell; the side face, facing the upper shell, of the optical port bracket is in press fit connection with the upper shell, and the two opposite side faces of the optical port bracket abut against and are fixedly connected with the first limiting pieces. Limiting bosses are arranged on the two side faces, connected with the first limiting piece, of the optical port bracket respectively, and the limiting bosses abut against the second limiting piece. One end of the fiber adapter is connected with the optical engine, and the other end is inserted into the optical port bracket. The optical port bracket is separated from the lower shell, and the optical port bracket is fixedly installed on the upper shell through the first limiting piece, so that the installation tolerance of the optical engine is absorbed when the optical port bracket is installed on the upper shell, and the problem that the installation tolerance of the optical engine is complex is solved.

The invention relates to the field of hard surface photomask base plate manufacture and the field of optical glass finishing, in particular to a bearing cleaning apparatus and an assembling method applied to the process of manufacturing a hard surface photomask base plate. The bearing cleaning apparatus is manufactured by assembling a notch frame (a1) and guiding positioning rods (a2), wherein the notch frame (a1) is formed by positioning and connecting a notch plate (b1) and a rib plate (b3) through a fixing piece, and the left side and the right side of the notch plate (b1) are provided with a mirror symmetrical slot (c1) and a bottom strip slot (c2) vertically running through the symmetrical slot (c1); and the ends of the left side and the right side of the notch plate (b1) are provided with guide holes (k1) for positioning and mounting the guide positioning rods (a2). The bearing cleaning apparatus has good universality and is flexible and convenient, the whole body is difficult to deform, the phenomenon of water flow blockage cannot appear in the cleaning process, and the cleanliness and the operation efficacy of workpieces can be improved effectively.

A vehicle front portion structure having a storage portion for facilitating maintenance for a vehicle front portion includes a first storage portion that includes a bottom portion extending in the longitudinal direction of a vehicle body, left and right walls extending upwardly from the bottom portion, a ceiling portion connecting the left and right walls and a back wall closing the respective backs of the bottom portion, left and right walls and ceiling portion. The first storage portion is provided with a maintenance opening formed to be spanned among the back wall, a left wall continuous with the back wall and the bottom portion continuous with the back wall, and with the lid body which covers the maintenance opening in an attachable and detachable manner. A key cylinder arrangement structure for a vehicle is provided that can significantly enhance operability of a key cylinder while preventing tampering or theft.

The invention relates to a bookshelf capable of airing books. The bookshelf comprises a bookshelf main body, the bookshelf main body comprises horizontal plates and vertical plates, each two adjacentvertical plates and horizontal plates form a book airing space with the cross section being triangular, a book page separator is arranged on the side wall of each book airing space, each book page separator comprises a fixing block, a connecting plate and a cross rod, the cross rod is coupled to the connecting plate through a short shaft and can be rotatably adjusted along the vertical direction of the short shaft, separating rods are arranged on the cross rod at intervals, the separating rods can be rotatably stirred by adopting the cross rod as an axis, the pages of a new book can be separated by adjusting the cross rod and the separating rods, so that the contact area between the pages of the new book and air can be increased, and thus the purpose of accelerating the volatilization of the new book and removing the odor is achieved.

The invention provides a planar rectification diode. The planar rectification diode comprises an anode leading wire (1), a cathode leading wire (2), a silicon dioxide protective layer (3) and a positive-negative (PN) junction (4), wherein the anode leading wire (1) is connected with the silicon dioxide protective layer (3), the silicon dioxide protective layer (3) is connected with the PN junction (4), and an adhesive layer (5) and a copper-nickel alloy layer (6) are sequentially coated outside the anode leading wire (1) and the cathode leading wire (2). The planar rectification diode provided by the invention has the following technical effects: 1) a pin is difficult to be bent or broken; and 2) the pin is difficult to be inserted deeply during embedment, and welding instability is prevented.

The invention provides a device for preventing from building a bird nest. The device for preventing from building the bird nest comprises a building-proof part (10) and a fastening assembly, wherein the building-proof part (10) is erected on a cross arm (51); a concave opening (11) matched with the outer surface of a wire pole (52) is formed in one side facing towards the a wire pole (52) of the building-proof part (10); the building-proof part (10) is fixedly arranged on the cross arm (51) through the fastening assembly. With the adoption of the device provided by the invention, the problem that bird damage of electric power circuits cannot be fundamentally solved through anti-bird equipment in the prior art can be effectively solved.

The invention relates to a device for determining the pomegranate freezing point. The device comprises a freezing chamber, a copper-constantan thermal couple, a 0-degree constant-temperature device, a multi-channel microvolt-level data collecting and processing device, a computer and a concave groove, wherein the copper-constantan thermal couple is provided with a measuring head; the concave groove is put into the freezing chamber; the measuring head penetrates through the bottom of the concave groove; the rear end of the measuring head is wrapped by a tubular column which is movably arranged on the bottom of the concave groove via a connecting element and enables the measuring head to be smoothly inserted into pomegranate fruit. According to the invention, the arrangement of the concave groove is beneficial to the fixing of the pomegranate fruit, so that the measurement result is relatively precise; the arrangement of the tubular column is beneficial to the insertion of the measuring head into the pomegranate fruit; the measuring head is very small, is extremely low in thermal inertia, is flexible in response, and damages the original state of a tested tissue minimally, so that the measuring head measures temperature accurately, and has the advantage of simplicity, convenience, rapidness and accuracy.

Provided in the invention is a point contact type rectifier diode comprising an anode lead wire (1), a cathode lead wire (2), a PN junction (3), an N type germanium slice (4), a bracket (5), a metal whisker (6) and a shell (7). The anode lead wire (1) and the N type germanium slice (4) are connected to the two ends of the metal whisker (6); the N type germanium slice (4) and the bracket (5) are connected to the two ends of the PN junction (3); the cathode lead wire (2) and the bracket (5) are connected; and the PN junction (3), the N type germanium slice (4), the bracket (5), and the metal whisker (6) are arranged in the shell (7). Adhesive layers and albata layers coat the outsides of the anode lead wire (1) and the cathode lead wire (2) successively. According to the invention, the point contact type rectifier diode has the following technical effects: firstly, pins are not easy to fold or break; and secondly, when the pins are embedded, deep insertion can be prevented and thus instable welding can be avoided.

The invention discloses a tool bit of a pen-shaped eyebrow shaping tool. The tool bit comprises a columnar tool bit body, a blade is arranged on the tool bit body, the tool bit and a handle can form the eyebrow shaping tool of a pen-shaped structure, the blade is of a bent arc-shaped structure, and a cutting edge at the upper end of the blade corresponds to an arc shape. Therefore, on the premisethat the safety is ensured, compared with an existing straight eyebrow shaping blade, the blade can be very small and is not prone to being inserted into flesh; the upper end of the blade is arrangedon the upper end face of the tool bit body, the tool bit can move perpendicular to the skin or move by inclining by a certain angle in the direction perpendicular to the skin during dehairing, an inclined cutting angle is formed by obliquely arranging the blade relative to the axis L of the tool bit body, the cutting sharpness is guaranteed, eyebrows can be effectively cut off by holding the pen-shaped eyebrow shaping tool to operate like a pen, eyebrow shaping flexibility and controllability are improved, the blade of the arc-shaped structure can effectively control scraping and planing of concave-convex parts, and therefore eyebrow shaping and molding can be accurately achieved.

The invention provides a Schottky diode which comprises anode metal, an N epitaxial layer, an N-type semiconductor substrate, an N cathode layer, cathode metal and three pins. The anode metal is arranged at the top, the N epitaxial layer is arranged below the anode metal and connected with the same, the N-type semiconductor substrate is arranged below the N epitaxial layer and connected with the same, the N cathode layer is arranged below the N-type semiconductor substrate and connected with the same, the cathode metal is arranged below the N cathode layer and connected with the same, the three pins are arranged on the cathode metal and include an anode pin in the middle and cathode pins on two sides, the anode metal is molybdenum, each of the N epitaxial layer, the N-type semiconductor substrate and the N cathode layer is a silicon wafer, silica oxidized insulating layers are arranged on two sides of the anode metal, and a limiting block is arranged on the anode pin and the cathode pins. The Schottky diode has the advantages that the pins are less prone to being bent or broken, less prone to being inserted too deeply when being embedded and free of causing instability in welding.

The invention relates to a binder clip, which comprises a clip body, wherein the clip body comprises a clamping edge and a ridge part, a clamp groove is formed in the ridge part, one side of the clamp groove is provided with an opening, the opening of the clamp groove is pointed at the clamping edge, the clamp groove comprises a first vertical baffle plate and a first transverse baffle plate, the first vertical baffle plate is fixedly arranged at the ridge part, the first transverse baffle plate is in lap joint with the first vertical baffle plate, the opening side of the clamp groove is provided with a second vertical baffle plate, and the height of the second vertical baffle plate is lower than the height of the first vertical baffle plate. Labels are arranged in the clamp groove, and are matched with the clamp groove. The binder clip has the advantages that the binder clip is provided with the labels, and the labels are perfectly combined with the clamp groove, so the slide falling cannot easily occur; the file finding is convenient, the time is saved, and the daily work efficiency is improved.

The invention relates to a medical peristaltic pump tube which belongs to the field of medical devices, the technical essentials include an inlet tube with a puncture needle, an outlet tube fitted with a venous needle and an extension tube, wherein the two ends of the elongated pipe are respectively communicated with the liquid inlet pipe and the liquid outlet pipe through a connecting assembly, the connection assembly includes a threaded head fixed at one end of the discharge tube away from the venous needle and at one end of the elongated tube, and a threaded sleeve fixed on the other end ofthe elongated tube and the end of the inlet tube away from the puncture needle. A drip bucket and a flow regulator are arranged on the liquid inlet pipe, a pump pipe body made of silica gel is arranged between the extension pipe and the liquid inlet pipe, one end of the pump pipe body is threadably connected with a screw head on the extension pipe, and the other end of the pump pipe body is inserted and connected with the screw sleeve on the liquid inlet pipe through a plug and fixed by a fixing assembly. The invention has the advantages that the pump pipe body and the infusion pipe are tightly and fixedly connected, and the separation between the pump pipe body and the infusion pipe is avoided.

The invention relates to a multi-core writing tool, wherein a plurality of writing cores are accommodated in a shaft sleeve and are convenient in replacement. Meanwhile, the outer peripheral surface of the rear portions of the shaft sleeve (12) is equipped with a vertical hole (16a) and the rear end of the vertical hole is closed. An operation body (24) connected with the rear portions of the writing cores (20) can freely enter and exit in the radial direction of the vertical hole (16a). Therefore, when replacing the writing cores (20), the operation body (24) and the writing cores (20) connected with the operation body can be taken out in the radial direction thereof. Meanwhile, the operation body (24) and the writing cores (20) can also be inserted via the vertical hole (16a).

The invention provides a laser diode comprising a diode cap at the top; a radiator and a laser diode die which are disposed in the diode cap; a laser diode die pin connected with the laser diode die; a photosensitive diode connected with the laser diode die pin; a photosensitive diode pin connected with the photosensitive diode; and a diode base disposed under the diode cap and outside the photosensitive diode. The laser diode die pin and the photosensitive diode pin are equipped with stopper blocks. The laser diode has beneficial effects that 1) the pins are not prone to be bent or fractured; and 2) it is uneasy to insert the inlaid pins excessively deeply and thus infirm soldering can be prevented.

The invention discloses a cold-rolling strip steel threading method, which belongs to the field of strip steel rolling. The cold-rolling strip steel threading method comprises the steps of (1) being in no hurry to pull a strip tail over a rolling mill after the rolling of a previous strip steel is completed and the strip tail is separated from a jaw; (2) carrying out feeding operation of a next strip steel by an uncoiling worker, and feeding the head part of the next strip steel to the outer side of an inlet oil scraper roller of the rolling mill; (3) enabling the uncoiler running speed V (uncoiling) to be equal to the rolling mill running speed V (rolling mill) after the tail part of the previous strip steel and the head part of the next strip steel are in up-and-down lap joint; (4) stopping the feeding by the uncoiling worker when the head part of the next strip steel reaches to the position of an outlet guide roller of the rolling mill by successfully penetrating through the rolling mill along with the tail part of the previous strip steel; and (5) coiling the tail part of the previous strip steel, and coiling the tail part of the previous strip steel to a steel coil. According to the cold-rolling strip steel threading method disclosed by the invention, a cold-rolling strip steel is prevented from being firstly inserted in a roller seam clearance between a working roller of the rolling mill and an intermediate roller or under an oil spray guide plate during a twenty-high rolling mill threading process, and successful threading operation is realized.