702 results about "Conical tube" patented technology

A device and method for loading an implant into a delivery system are disclose which are capable of simplifying operations required in interventional surgery using the implant. The device includes a guide cap (1), a guider (2) and a guiding tube (3). The guide cap (1) has a conical section (101) and a straight or conical tube (103) in communication with a small open end (102) of the conical section, and the conical section has a large open end (104) that flares outward, thereby forming a flange (105) facing the tube (103). The guider (2) has tapered sections (9, 10) that are tapered along an axis of the guider and thus form large and small open ends (8, 11). The small open end (11) has a diameter greater than a diameter of the small open end (102) of the conical section of the guide cap (1). The guide cap (1) and the guider (2) are so sized that the flange (105) can cover and be locked to the guider (2), with an end portion of the straight or conical tube (103) protruding from the small open end (11) of the guider (2). The guiding tube (3) is a round tube with two open ends, in which the first open end has a diameter greater than the diameter of the small open end (102) of the conical section of the guide cap and smaller than the diameter of the small open end (11) of the guider.

Solid phase extraction devices for sample preparation are disclosed, comprising a hollow conical tube having one narrower opening and one broader opening, wherein the narrower opening of the tube contains a solid phase extraction material comprising a functionalized monolithic sorbent, and wherein the solid phase extraction device is prepared by a combination of reduced pressure, positive pressure and mechanical compaction. The solid phase extraction devices are adapted for preparation of small sample volumes, and provide excellent recovery of analytes and good flow characteristics. Methods for preparing and using the solid phase extraction devices are disclosed.

A toothbrush attached to a tube of toothpaste that includes a dispenser and means for stemming the flow of the toothpaste. The toothbrush has a toothbrush head with bristles and the head further includes a toothpaste-dispensing aperture through which toothpaste is dispensed. Extending back from the head is the toothpaste dispenser which includes a conical toothpaste tube attachment member with the point of the cone adjacent to and connected to the head of the toothbrush. At the tip of the cone is an aperture to dispense toothpaste which communicates with the aperture on the head. Extending back from the conical tube attachment member is an elongated, tapering gripping portion that extends over the toothpaste tube to assist the user in controlling and squeezing the tube. A tube of toothpaste is securely attached to a circular back edge of the toothpaste tube attachment member. A switch is positioned into a switch receiving slot, which switch is utilized to stop the flow of toothpaste out of the toothpaste aperture in the head.

A device (1) is proposed which consists of a pouring nozzle (2) with a cylindrical circumferential wall (20) and with an internal thread (21) and a terminal flange (22), into which an adapter (3) can be screwed. The adapter (3) has an inlet end (30) with an external thread (32) and an outlet end (31) with a conical tube attachment (35). At least one combined perforating and cutting tooth (34) is formed integrally on its lower edge in the screwing-on direction. In order to achieve as high a sealing force as possible between the tubular bag (4) and the adapter (3), a special seal is proposed. To this end, the cylindrical circumferential wall (20) above the terminal flange (22) is guided into a double-walled region. The outer region forms an obliquely outwardly directed conical supporting-wall region (24) and the inner double-walled region (23) is formed by a likewise slightly conically designed but inwardly directed sealing skirt (25). Liquid which possibly tends to penetrate into the thread region while the sealing film is cut open is thus held back.

Silicon single crystals are prepared from molten granules, by

producing a first volume of molten silicon between a growing single crystal and the lower end of a silicon conical tube which is closed at its lower end, and encloses a central opening of a rotating silicon plate below which the tube extends, by means of a first induction heating coil arranged below the plate;

producing a second volume of molten silicon by a second induction heating coil arranged above the plate;

melting the lower end of the tube to form a passage for the second volume of molten silicon, the passage produced at a point in time when the second volume is not yet present or is less than double the volume of the first volume; and

crystallizing monocrystalline silicon on the growing single crystal with consumption of molten silicon from the first and the second volume.

The invention relates to a solid oxide fuel battery of taper-pipe anode support and battery group. Wherein, said battery comprises a porous anode support, a dense electrolyte film, and a porous cathode film. The porous anode support is in taper pipe shape whose one end mouth is large and another is small while the edge of small mouth is arc; the dense electrolyte film covers the outer edge of porous anode support; the cathode layer is at the upper layer of dense electrolyte between the arc edge of small mouth and the edge of large mouth. The battery group is formed by the outer edge of small mouth of said battery and the inner edge of big mouth of another inventive battery via the sealing material. The inventive battery has small size, high output power, easy production and the application of small SOFC electric pile. The cathode of said battery can be connected to the anode of another battery in series via sheathing one taper pipe on another taper pipe, with easy sealing.

The invention relates to a communication cabinet with good ventilating and dust-removing effects, which can effectively solve the problem that the stability of the communication cabinet is affected due to bad radiating and dust-removing effect of the existing communication cabinet. A plurality of gas inlet boxes are arranged on outer side surfaces of the left, the right and the rear side plates of a cabinet body, wherein the gas inlet boxes are hollow rectangular box bodies; a gas inlet fan is arranged on one side surface of each of the gas inlet boxes; a plurality of tapered tubes are arranged on the other side surface of each of the gas inlet boxes; tapered holes corresponding to the tapered tubes are arranged in the tapered tubes; one end with a greater diameter, of each of the tapered tubes is arranged inside a cavity of each of the gas inlet boxes, and one end with a smaller diameter, of each of the tapered tubes is arranged outside each of the gas inlet boxes; a plurality of tapered through holes are formed in the side plates of the cabinet body; one end with the smaller diameter, of each of the tapered tubes is arranged in the corresponding tapered through hole; two dust-absorbing barrels which are vertically arranged are arranged in the cabinet body; a plurality of gas inlets are formed in the dust-absorbing barrels; the dust-absorbing barrels are filled with dust-absorbing materials; air-exhausting fans are arranged at the upper ends of the cavities of the dust-absorbing barrels; an air outlet is formed in a cover plate at the upper end of the cabinet body; a ventilating way is active, so that dust in the cabinet body can be timely adsorbed, and therefore, the communication cabinet is innovation of communication cabinet.

The invention discloses a method used for processing a large-diameter conical pipe internal thread, comprising the steps as follows: a numerical control machine tool mainshaft is provided with a thread milling cutter; a screw pitch of the internal thread of the conical pipe on the workpiece is divided into a plurality of equal sections in the axis line direction; the internal wall arc of the workpiece corresponding to each equal section is executed according to the processing type of cylindrical thread; after the cylindrical thread of one equal section is processed, the Z-axis of the machine tools feeds by a screw pitch; meanwhile, X and Y coordinate axis synthesis arc processing diameter corresponding to the thread milling cutter is reduced correspondingly; the workpiece internal wall arc corresponding to each equal section is executed according to the processing type of the cylindrical thread, and the like; a plurality of cylindrical threads of different diameters are communicated end to end till that the required conical pipe internal thread depth is processed. The internal thread of the conical pipe processed by the method can completely meet the precision and the usage requirement and reduce the production cost.

The invention relates to a wedge-block-type unwinding shaft used in a production line of disposable hygienic products. In the invention, a fixed shaft is a stepped shaft, a small-diameter section of the fixed shaft is sequentially sheathed with two guide sleeves, a spacer bush and a compression spring, and an end part of the small-diameter section of the fixed shaft is in threaded connection witha hand wheel; one end of the compression spring is positioned in a circular groove of the hand wheel, and the other end of the compression spring is in contact with an end face of the spacer bush; locking sleeves are sheathed on small-diameter sections of the two guide sleeves, sleeves are sheathed outside the locking sleeves, four axial expansion pin grooves are uniformly distributed on each sleeve, and each expansion pin groove is internally equipped with an expansion pin; each expansion pin is in the shape of a wedge block, and an oblique plane of each expansion pin corresponds to each locking sleeve; and a taper sleeve is inserted between the locking sleeve and the sleeve which are positioned at one end adjacent to the spacer bush, a conical tube is arranged at one side of the taper sleeve, a cylindrical tube is arranged at the other side of the taper sleeve, and the conical surface of the conical tube of the taper sleeve is in contact with the oblique planes of the four expansionpins in a fit manner. The wedge-block-type unwinding shaft has the advantages of compact and delicate structure and reasonable design, and is convenient in use; unwinding resistance can be controlledby adjusting the hand wheel; and material coils can be fixed, assembled and disassembled quickly through the expansion pins.

The invention relates to a liquid-liquid heterogeneous mixing-reaction-separation integrated short-contact cyclone reactor, belongs the field of liquid-liquid heterogeneous mixing equipment, and particularly relates to a short-contact cyclone reactor integrating mixed reaction and separation. The reactor is characterized in that a light phase liquid inlet pipe (3) is arranged at one side of an outer barrel (4), a material circulating structure (9) for communicating an inner cavity of an inner barrel (5) with an annular cavity is arranged on the wall of the inner barrel (5); a light phase overflow outlet pipe (1) is arranged on the inner upper part of the inner barrel (5) in a sleeving manner, an annular mixing cavity is formed between the light phase overflow outlet pipe (1) and the inner barrel (5), the upper part of the light phase overflow outlet pipe (1) extends out of the inner barrel (5), and a heavy phase underflow out pipe (7) is fixedly arranged on the lower part of the inner barrel (5) in a sleeving manner by a conical pipe (6). According to the invention, the integrated process of quick mixing, quick reaction and quick separation of heterogeneous liquid is realized, the equipment structure is compact, the handling capacity is large, continuous operation is realized, and the reactor has the advantages of being low in maintenance cost and strong in adaptability.

The invention discloses an axial flow pump guide vane body with high specific speed, overcoming the deficiencies that the traditional axial flow pump guide vane body with high specific speed has larger hydraulic loss, resulting in lower efficiency of a water pump. In the invention, a diffusion angle of a conical tube of the guide vane body is enlarged to enable a single-edge diffusion angle thereof to be ranged from 6 degrees to 10 degrees; because the diffusion degree of the guide vane body is increased, the flow rate is lowered on the basis of ensuring not to cause side wall flow separation, thereby efficiently lowering the hydraulic loss of the guide vane body and enhancing the efficiency of the pump; and also because the diffusion angle of the guide vane body is enlarged and the outlet diameter is increased, a flowing space of a latter water outlet channel is also increased, the hydraulic loss of the water outlet channel is lowered, and the pump device efficiency is further improved.

The invention discloses a vortex mass flow meter, comprising a measuring tube, a vortex generating body arranged in the measuring tube and a flow detection element. The measuring tube is composed of an inlet section, a contraction section, a throat part, an extension section and an outlet section which are connected in sequence, the inlet section and the outlet section are straight round tubes with the same diameters, the contraction section and the extension section are conical tubes with the same conical degrees, and the throat part is a straight round tube the inner diameter of which is smaller than that of the inlet section; and the vortex generating body and the flow detection element are both arranged on the throat part of the measuring tube. In the invention, the contraction section is used for adjusting flow field and improving flow speed, the extension section is used for restoring the tube diameter contracted by the contraction section, and the contraction section and the extension section can improve the pressure loss of the measuring loss. By installing the vortex generating body and the flow detection element on the throat part of the measuring tube, due to the acceleration action when flow passes through the contraction section, the lower limit flow value of a meter can be greatly reduced and the measuring range of the meter can be improved by measuring the flow at the throat part.

Disclosed are an automobile front anti-collision beam structure and application thereof to automobiles. The automobile front anti-collision beam structure is composed of a main beam, an inner plate and an energy absorbing device, wherein the inner plate is fixedly connected to the main beam; the energy absorbing device is fixedly connected to the inner plate and at least composed of a bottom plate, a first conical tube, a second conical tube and a third conical tube; the bottom ends of the first conical tube, the second conical tube and the third conical tube are fixedly mounted onto the bottom plate, and the first conical tube, the second conical tube and the third conical tube are gradually nested from inside to outside; the heights of the three conical tubes are gradually reduced from inside to outside, the diameters of the bottom ends of the three conical tubes are gradually increased from inside to outside, the thicknesses of the three conical tubes are gradually increased from inside to outside, and the tapers of the three conical tubes are gradually increased from inside to outside. According to the automobile front anti-collision beam, when collision deformation occurs, crumple of a single stage gradually develops into simultaneous crumple of two stages and then into simultaneous crumple of three stages, plastic deformation can be gradually increased, a regular and stable deformation mode and significant buffer effects can be achieved, and energy absorption can be gradually increased. Therefore, the automobile front anti-collision beam can enhance structural stability and crashworthiness and meanwhile improve the collision angle adaptability.

The invention relates to a tube orifice diameter variable plug-in sampling instrument which structurally comprises conical tubes, straight bobbins, a steady flow buffer tube, a core tube, a diversion pressure regulating valve, a pressure gauge, a sampling hose, a concentric flow regulator and the like. The instrument changes the composition, the structure and the operating principle of the original organic polluted water sampling device, has the characteristics of small size, light weight, wide application scope, convenience in carrying and mounting, simplicity in operation, safety in use, prevention of a pollution link in a collection process of the sample and the like, improves the fidelity of the collected sample, lowers the collecting cost of the sample, and ensures the safety of personnel and equipment, and the universality of the sampling instrument is improved.

A removable orthopedic protective sleeve adapted to be applied over the male Morse taper of modular orthopedic implants thereby preventing contamination of the taper contact surface from blood, body fluid or tissue particles responsible for electrochemical corrosion and fretting at the level of Morse taper. Said sleeve having a conical tube shape and a rim at its upper narrow end. A plurality of vertical grooves situated on the outer surface of the protective sleeve will split open as the female Morse taper of the articular ball is slidingly pushed downward and seated over the male taper. The split sleeve is then removed after the male and female tapers are assembled in-situ.

The invention discloses a leaky cable longitudinally-wrapped cavity forming platform which comprises a longitudinal-packaged platform. A first longitudinally-wrapped forming die, a second longitudinally-wrapped forming die, a longitudinally-wrapped forming conical tube, an overlapping die, a first sizing die and a second sizing die which are coaxial are installed on the longitudinally-wrapped platform in sequence, wherein die cavities of the first longitudinal-wrapped forming die and the second longitudinally-wrapped forming die are connected into a wholly streamline-shaped die cavity; a core shaft bracket is installed on the longitudinally-wrapped platform; and a core shaft is installed on the core shaft bracket, is positioned in the streamline-shaped die cavity and is matched with the first longitudinally-wrapped forming die and the second longitudinal-wrapped forming die to form a longitudinally-wrapped cavity. The leaky cable longitudinal-wrapped cavity forming platform has the beneficial effects that as a copper strip can not transversely swing in the forming process, the problems of slot deformation, copper strip breaking and position change of the copper belt are completely solved, so that the product quality is improved, and the higher uniformity is achieved; and under the existence of a furred tongue, the two sides of the copper strip are always positioned at the same position, so that the crossed turnover and folding is avoided, and the qualified rate of products is improved.

The invention provides a method for preparing Co3O4 (tricobalt tetreoxide) powder with high density and equipment thereof. Anhydrous CoCl2 is taken as raw material, the granularity of which is 100 to 400 meshes, and added into a reaction furnace to be fully mixed with oxidizing gas that contains water vapour at a motion state under 500 to 1000 DEG C for reaction so as to generate the Co3O4 powder. The equipment comprises a furnace body, the upper part of which is a drum body provided with a feeding tube and a discharging tube of airflow and products; the lower part of the furnace body is a conical tube, the bottom end of which is provided with a slag discharging tube, and the conical surface of the lower end of the conical tube is connected with a warm-air tube. The technique process of the method and the equipment of the invention are simple, the process system of the invention is convenient for controlling and regulating, reaction products only contain two phases of gas and solid, which are easy to be separated, then treatment procedures are carried out, namely, separation of the gas and the solid, washing, drying and classification of the powder, recovery of HCl gas, etc. are connected with the prior art, therefore, the quality of the products is high and no pollution is caused in the production process.

A digital metal flow meter of float - type based on proportional capacity angle measurement principle consists of floater flow rate transducer including conical tube and floater with internal magnetic steel set in conical tube; converter including mechanical link set outside of conical tube, rotary shaft and capacity angle displacement transducer with sensitive element; and intelligent signal processor including selection unit, exciting source, electric charge detection circuit and intelligent component.

In a condenser microphone having a battery holder and a battery cover therefor, one part is used as a member for grounding the battery cover and as a member for preventing the battery cover from coming off. In a condenser microphone 1 including a microphone housing 2 formed of a metallic cylindrical body; an output connector 4 provided with a predetermined number of terminal pins 43 in a metallic connector sleeve 41; a battery holder 3 provided between the microphone housing 2 and the output connector 4; and a battery cover 5 formed of a metallic cylindrical body for opening/closing the battery holder 3 by sliding, a first ring-shaped groove 41a is formed in the outer peripheral surface of the connector sleeve 41; in the first ring-shaped groove 41a, there is disposed a conductive member 6 consisting of a circular conical tube body in which one end thereof on the battery holder 3 side is in elastic contact with the inner peripheral surface of the battery cover 5, and the other end thereof on the opposite side has a diameter approximately equal to the diameter of the groove bottom of the first ring-shaped groove 41a; and in the inner peripheral surface of the battery cover 5, there is formed a second ring-shaped groove 52 with which the one end of the conductive member 6 increases in diameter and engages.

The invention discloses a rubberizing device, comprising a base, a pin base, a rubberizing pin on the pin base, a fixing mechanism and a pin protecting mechanism. In an embodiment of the invention, the fixing mechanism comprises a slide block and a clamp; wherein the slide block can be arranged on a guide rail of the base in a sliding way, and drives the pin base and the rubberizing pin to lift up and down to adjust the distance between the fixing mechanism and the pin protecting mechanism; the clamp is connected with the slide block to clamp the pin base. The pin protecting mechanism comprises a conical tube; the conical tube can be separately sheathed on the outside of the rubberizing pin. During the use and maintenance of the rubberizing device, when the distance between the fixing mechanism and the pin protecting mechanism is increased, the rubberizing pin can be moved out of the pin protecting mechanism thus realizing quick replacement and improving the operation efficiency.

The invention belongs to the technical field of tunneling engineering and particularly relates to a manufacturing method for an end shield of a built-in grout block shield machine. According to the invention, grouted blocks are cut and built one by one via the fixing of adjustable inner tube flanges on a winded whole shell, thus the size precision of the end shield is well ensured, the product quality and the efficiency are improved. As for the shell blanking accuracy, the accuracy is greatly improved as compared with that of the traditional method of calculating key point by using the metal plate feeding function of software, so that the method is beneficial for achieving the conical tube mode of the end shield. Compared with the method of winding the shell section by section and then welding with the grouted blocks, the novel integral-cutting and gradual-embedding form ensures product quality better, and is more stable and more reliable. The plate is wound for one time according to the novel method, however, when the sectional winding method is adopted, the plate winding efficiency will be increased, the manufacturing cost of products is improved, and the production efficiency is reduced,.

The invention belongs to the simulation research field. A proposed wind load simulation research method for a composite material conical tube structure comprises steps as follows: firstly obtaining the distribution of the trapezoidal load on the conical tube structure, determining the load position of central concentrated load, determining the central concentrated load, the flexivity of the conical tube structure, measuring and leveling the primary standard to conduct flexivity test. Adopting a method of local load through exerting multipoint instead of wind tunnel trial to measure the flexivity of the conical tube structure under certain wind speed, the invention has the advantages of simple operation, short test period, low cost and reliable result, besides, the invention not only can be used for the wind load simulation research method for chimney, telegraph pole and antenna conical tube structure composite materials, but also can be used for the wind load simulation research method for column-shaped and beam-shaped composite material structures, having prominent military and economic benefits.

The invention relates to a multi-channel low NOx co-combustion burner. The burner comprises a tubular oil gun barrel, a primary air pipe, a combustible gas pipe, a cold air pipe, a coal flow pipe, a secondary air pipe and a tertiary air pipe, which are sleeved and fixed coaxially and sequentially. A flame detector is arranged between the combustible gas pipe and the primary air pipe. A secondary air whirling blade and a tapered secondary air baffle are arranged between the secondary air pipe and the coal flow pipe. A screw rod regulating shaft is arranged on one side of the tapered secondary air baffle. A tertiary air flow regulating tube is sleeved outside the tertiary air pipe and has the same diameter as the tertiary air pipe. A tertiary air adjustable whirling blade is arranged between a tertiary air conical tube and the secondary air pipe. A screw rod regulating shaft is arranged on one side of the tertiary air adjustable whirling blade. The burner can burn oil, combustible gas and coal independently or at the same time, has high adaptability to coal qualities, ensures stable and complete combustion of fuels, minimizes the formation of NOx and reduces the discharge of harmful substances.

The invention discloses a line simple drilling cutting ring undisturbed sample extracting device comprising a beam type opened cutting ring soil extracting device, a pressurizing lifting power assisting device matching with the beam type opened cutting ring soil extracting device and a cutting ring soil sample storing device. The beam type opened cutting ring soil extracting device comprises a fixed semi-closed sampling tube, one end of the fixed semi-closed sampling tube is provided with a sealing conical tube, the sealing conical tube is provided with a through hole, inside, communicated with the fixed semi-closed sampling tube, a ball valve is arranged in the through hole, the end of the sealing conical tube is provided with a connected hollow drill rod, and the sealing conical tube is provided with vent holes; the pressurizing lifting power assisting device is installed on the hollow drill rod.