43results about How to "Fixed and stable" patented technology

The invention discloses an adjustable multimedia teaching auxiliary device, which comprises a support frame, a storage battery is fixedly connected to the middle position of the inner bottom of the support frame, chute is opened on the bottom of the inner wall on both sides of the support frame, and the inner walls of the two chute A sliding block is movably connected, and a movable plate is fixedly connected between the opposite sides of the two sliding blocks. The invention provides an adjustable multimedia teaching auxiliary device. By setting an electric push rod and universal wheels, it has the advantages of being convenient to move and fix. By setting a buffer device, it has the advantage of shock absorption. By setting a driving motor, a screw rod, The adjustment block and the top plate have the advantage of adjusting the projection height of the multimedia setting, the advantages of adjusting the projection direction of the multimedia equipment by setting the rotating disk and the fixed shaft, and the adjustment of the projection angle of the multimedia equipment by setting the adjustment seat, the pin shaft and the adjustment bolt Advantages, it solves the problem that multimedia equipment is not easy to adjust in teaching.

Disclosed is an inner circuit grinder of an inner bore. The inner circuit grinder of the inner bore comprises an automatic walking mechanism arranged on a bed body of a machine tool, wherein a motor which controls walking of the automatic walking mechanism is arranged on the side face of the automatic walking mechanism, a bottom seat is arranged on the upper portion of the automatic walking mechanism, a shaft is arranged on the bottom shaft, a first belt pulley is installed at one end of the shaft, close to the motor, the first belt pulley and a second belt pulley installed on the motor are connected through a belt, a grinding wheel blade is installed at the other end of the shaft, the shaft is aligned to the inner bore of a work piece fixed at the end of the machine tool, the motor drives the automatic walking mechanism and the shaft fixed on the bottom seat to move by driving the first belt pulley and the second belt pulley, and the motor starts to grind the inner bore of the work piece when the grinding wheel blade located at the end of the shaft is located in the inner bore of the work piece. The inner circuit grinder of the inner bore has the advantages of being stable and reliable in bore grinding, small in size, low in weight, superior in performance and easy to install.

The invention belongs to the technical field of concrete water reducing agents, and particularly relates to a production method of a polycarboxylic acid high-performance water reducing agent for a concrete tubular pile. Theproduction method comprises the following steps: S1, adding water, methyl allyl alcohol polyoxyethylene ether and isopentenol polyoxyethylene ether into a reaction kettle, stirring by using a stirring device to dissolve, regulating the temperature to 50-65 DEG C, and reacting for 2-3 hours, wherein the ratio of n(methylallyl alcohol polyoxyethylene ether) to n(isopentenolpolyoxyethylene ether) is 1:1.5-1:2. According to the production method, the reaction kettle is divided into the upper kettle body and the lower kettle body, which are fixedly connected through the heat-resistant folding rubber pipe, so that when the pressure in the reaction kettle is too high, the electromagnet is powered off, the L-shaped clamping rod is separated from the interior of the limitingassembly, then the upper kettle body and the lower kettle body are separated, and the upper kettle body moves upwards at the moment; therefore, the inner space of the reaction kettle is increased, thepressure is reduced and explosion is avoided; in addition, the heat-resistant folding rubber pipe used for connecting the upper kettle body and the lower kettle body can be used as a space for releasing heat and pressure.

The invention discloses a welding nut and a method for connecting the welding nut with objects. The welding nut comprises a nut body and an extending part which are arranged coaxially, the extending part is fixedly connected with one end of the nut body and is larger than the nut body in diameter, and at least the other end face of the nut body is provided with a threaded through hole extending axially. The method for connecting the welding nut and the objects comprises the following steps that the nut body is inserted into a welding hole of the first object, the extending part is clamped and stopped outside the welding hole, then the welding nut is welded and fixed to the first object, and a threaded piece matched with the welding nut penetrates through the second object and is inserted into the threaded through hole in the welding nut until the second object is in fastened connection with the first object. By the adoption of the welding nut and the method for connecting the welding nut and the objects, the welding nut can be combined with the objects more firmly and will not disengage off.

The invention discloses an anti-collision automobile charging pile. A main housing is internally provided with a power supply terminal, and the power supply terminal is connected with a power supply;the tip end of a charging gun extends to the outside of the main housing, and a connection of the charging gun protrudes into the main housing and is electrically connected with the power supply terminal; the connection is wound on an automatic take-up device in the main housing through an extension cord, and then is electrically connected with the power supply terminal; the bottom of the main housing is evenly provided with multiple telescopic support feet in the circumferential direction, and the bottom ends of the telescopic support feet are connected with self-locking wheels, and the tailends of rotating shafts of the self-locking wheels are hinged to the bottom ends of the telescopic supporting feet in a folding way and fastened by locking members; and transparent anti-collision barsare arranged on the outsides of the multiple edges of the main housing, contour lamps are embedded in the interiors of the anti-collision bars, and stripe reflective strips are adhered on multiple surfaces of the main housing. The anti-collision automobile charging pile has a simple structure, is convenient to use, can effectively contour to alert a driver to avoid, is prevented from being damaged, and reduces the maintenance cost.

The invention relates to the field of a motor, and specifically relates to a high-rotation speed and rapid heat-conduction motor. The motor comprises a stator, a rotor sleeved in the stator and a rotation shaft penetrating the rotor. The motor also comprises a shell and a base which fit with each other. The shell sleevesthe stator. Vent holes are arranged on a shell end face. A positioning and installing hole post is arranged at the center of the base. A circuit board is arranged on an outer side frame of the base. A drainage fan is fixedly arranged on the rotation shaft and is located at the outer side of the shell end face. A plastic package body is packaged out of the stator. A plastic package reinforcing connection ring is integrally connected with the end face of one side of the plastic package body facing towards the base. The plastic package reinforcing connection ring is arranged against the side wall face of the shell. Airflow at the rear end of the circuit board is sent in the motor through the circuit board and the vent holes on a base plate. Equally, the airflow between the circuit board and the base plate is sent in the motor through the vent holes on the base plate, then the heat in the motor is absorbed by the airflow, and then the airflow is rapidly exported out of the motor through vent holes on an incline reinforced hole slot wall. The whole motor has the advantages of high integrity, compact structure, convenient disassembly, low cost, high strength, high stability and low noise.

The invention provides a thermoplastic package cooling and shaping workpiece conveying slideway, relates to the technical field of conveying slideways, and aims to solve the problems that when an existing workpiece conveying slideway is used, if an article falls from a high position, the existing workpiece conveying slideway can neither assist in receiving the article nor assist in pushing the article to be quickly slid and conveyed. The thermoplastic package cooling and shaping workpiece conveying slideway comprises a main body, a guide plate, a connecting piece and a mobbing block, wherein the main body is a conveying slideway body; moving wheels are installed at the bottom of the main body; a rotating head with a convex cylindrical structure in the middle is arranged in the middle of the right end of the main body; and the guide plate is installed at the right end of the main body. According to the thermoplastic package cooling and shaping workpiece conveying slideway, the guide plate is installed at the right end of the main body, so that when an article falls from a high position and needs to be conveyed, the guide plate is controlled to rotate through the rotating head so asto face upwards, thus when the workpiece falls down, the workpiece is in contact with the inner side of the top end of the guide plate, the workpiece is received, and the falling impact force of the workpiece is further buffered.

The present invention belongs to the technical field of preparation technologies of moxifloxacin hydrochloride sodium chloride injections and particularly relates to a preparation technology of a moxifloxacin hydrochloride sodium chloride injection. The preparation technology comprises the following steps: S1, adding sodium hydroxide powder into a sterilized and disinfected stirring tank, then adding 50% by volume of water for injection into the stirring tank, conducting full stirring to fully dissolve the sodium hydroxide powder to form a uniform solution; and S2, raising a temperature in thestirring tank to 90 DEG C, then adding moxifloxacin hydrochloride, and conducting uniform stirring. The preparation technology can accelerate filtration of the solution containing activated carbon powder, thus saves filtration time, improves filtration efficiency, can extract out the solution adsorbed inside the medicinal activated carbon powder and thus improves a generation rate of the solution; and meanwhile, a coarse sieve plate and a fine sieve plate are convenient to clean, the coarse sieve plate and the fine sieve plate can be beaten through a beating mechanism while cleaning is conducted, particles clamped in pores of the coarse sieve plate and the fine sieve plate are vibrated out, and the cleaning is more thorough.

The invention discloses a rainproof and sunproof automobile charging pile. A power supply terminal is arranged in a main shell, and the power supply terminal is connected with a power supply; the gunhead end of a charging gun extends to the outside of the main shell, and the wiring end extends into the main shell and is electrically connected with the power supply terminal, the wiring end is wound around an automatic take-up device in the main shell through an extension line, and is electrically connected with the power supply terminal. A plurality of telescopic supporting feet are circumferentially evenly arranged at the bottom of the main shell, the bottom ends of the telescopic supporting feet are connected with self-locking wheels, and the tail ends of rotating shafts of the self-locking wheels are foldably hinged to the bottom ends of the telescopic supporting feet and are fastened through locking parts. A blocking cover horizontally extends outwards at the top of the main shell,one end of the blocking cover is overturnably hinged to the main shell, and the other end of the blocking cover extends downwards and covers the front of the charging gun. The blocking cover is madeof transparent plastic, and a sunscreen mesh layer is detachably laid on the surface of the blocking cover. The rainproof and sunproof automobile charging pile is simple in structure and convenient touse and can effectively prevent rain and sun, the service life is greatly prolonged, and the charging cost is reduced.

The invention discloses a soil heavy metal pollution immobilization reagent and a preparation method thereof. Nano zero-valent iron is loaded on the crystal lattice and the surface of the base material, and then the nano-zero-valent iron on the surface of the base material is removed by acid solution treatment, and remains in the crystal lattice of the base material. The nanometer zero-valent iron immobilized in the grid is washed and dried to obtain an immobilized reagent. The immobilization reagent of the invention can efficiently, permanently and stably fix heavy metals in residue state.

Provided is an oil seal configured so that the sealing ability of the oil seal is improved by preventing muddy water from accumulating on the upper part of a dust lip disposed on the side which faces the outside of the machine. To obtain such an oil seal, a second seal member is provided on the side of a first seal member which faces the outside of the machine, the first seal member having a main lip, a first dust lip, and an affixation section affixed to a housing. The second seal member integrally has: an end surface covering section for covering an end surface of the housing; an outer peripheral engagement section fitted over the outer peripheral surface of the housing from one side in the axial direction and engaged with a stepped engagement section provided on the outer peripheral surface of the housing to retain the second seal member at the housing; an inner peripheral engagement section fitted to the inner peripheral surface of the shaft hole in the housing from the one side in the axial direction; and a second dust lip in close contact with the shaft on the side of the first dust lip which faces the outside of the machine.

The invention belongs to the technical field of mechanical operation, in particular to a mechanical automatic machine tool console. The mechanical automatic machine tool console comprises a lifting frame, a base and an operation table slidably connected into the lifting frame, a bearing is rotationally connected to the lower surface of the operation table, and a lifting lead screw is rotationallyconnected to the operation table through the bearing; a motor is fixed into the base through a bolt, a second bevel gear is rotationally connected to the output end of the motor, a screwing channel pipe is integrally formed in the base, and a rotating screwing ring is rotationally connected to the lower surface of the screwing channel pipe so that the rotating screwing ring rotationally connectedto the lower surface of the screwing channel pipe and a rotating screwing ring screwed to the outer surface of the lifting lead screw can drive the lifting lead screw to ascend in a screwing mode; andmeanwhile the inner wall of the screwing channel pipe is arranged to be connected with the lifting lead screw in a screwing mode, so that the lifting lead screw is stably fixed and used after drivingthe operation table to be lifted and adjusted, and therefore, the operating table can meet the using habit of an operator conveniently.

The invention belongs to the technical field of integrated display devices, and particularly relates to a data extraction integrated display device convenient to maintain, which comprises a main body, a bracket and a keyboard; a first rotating shaft is arranged at the top of the main body, a fixing groove penetrates through the outer side of the first rotating shaft, a sliding rod is arranged in the fixing groove, and a sliding block penetrates through the outer side of the sliding rod; a connecting piece is arranged on the side of the fixing groove, the fixing groove is fixedly connected with the connecting piece, the bracket penetrates through the interior of the connecting piece, a movable strip is connected to the end of the bracket, the bracket is movably connected with the movable strip, a sliding strip is arranged at the bottom of the movable strip, and a buckle is connected to the bottom of the sliding strip. According to the data extraction integrated display device based on the database, the display screen and the keyboard are arranged and can be conveniently unfolded and stored, the occupied space is reduced, meanwhile, the display screen and the keyboard can be better protected, the access door on the side of the device can be rapidly disassembled and assembled, and inspection and maintenance of the interior of the device are facilitated.

The invention discloses a hydrostatic testing machine for a connecting piece and a pipe of a pipeline heat tracing band, and relates to the technical field of pipe testing. The connecting piece of the pipeline heat tracing band is used for facilitating technical reconstruction of a pipe hydrostatic testing machine and comprises an inner ring and an outer ring, the outer ring is arranged on the outer circle of the inner ring in a sleeving mode, the inner ring is formed by splicing a first inner ring unit and a second inner ring unit, the first inner ring unit and the second inner ring unit are each in a semi-circular shape, and the first inner ring unit and the second inner ring unit are each in a semi-circular shape. The first inner ring unit and the second inner ring unit are detachably connected, the outer ring is formed by splicing a first outer ring unit and a second outer ring unit, the first outer ring unit and the second outer ring unit are detachably connected, and the inner side of the first outer ring unit and/or the inner side of the second outer ring are/is provided with a pay-off opening. And the inner ring and the outer ring can rotate relatively. The pipe hydrostatic testing machine comprises the pipeline heat tracing band connecting piece.

The invention belongs to the technical field of new energy and energy conservation, and particularly discloses a fabricated building embedded part which comprises an embedded part body and is characterized in that the embedded part body comprises an embedded part main body and an embedded part auxiliary body matched with the embedded part main body; an embedded part anti-seismic mechanism matched with the embedded part auxiliary body is arranged on the embedded part main body; embedded part fixing mechanisms are arranged on the embedded part main body and the embedded part auxiliary body; the embedded part body is redesigned, and through the embedded part anti-seismic mechanism, the embedded part fixing mechanism and the anti-seismic adjusting structure which are matched with one another, the embedded part body can counteract and reduce longitudinal vibration, transverse vibration and the like borne by the fabricated building in time; the connecting stability of the component accessories and the fabricated building is greatly improved, the possibility that the component accessories fall off and break is reduced, the overall anti-seismic performance of the fabricated building is improved, the damage of the fabricated building to escaping people when natural disasters happen is reduced, and the escaping probability of the people is improved.

The invention relates to the technical field of pediatric medical treatment, and discloses a pediatric nursing special electrocardiograph monitor which comprises a main body, a mounting part is fixedly mounted on the right side of the main body, a transmission line is fixedly mounted on the right side of the mounting part, and an electrocardiograph monitoring fingerstall is fixedly mounted at the lower end of the transmission line. An electrocardiograph monitoring part is arranged in the electrocardiograph monitoring fingerstall, linkage assemblies are arranged on the left side and the right side of the electrocardiograph monitoring part, and fixing parts are installed on the lower sides of the linkage assemblies and located on the inner wall of the electrocardiograph monitoring fingerstall. According to the electrocardiograph monitor special for pediatric nursing, the lower end of a second connecting rod drives a fixing connecting rod to move relatively, the fixing connecting rod drives a fixing plate to make contact with the outer side of a finger of a child in an attached mode, and therefore the finger of the child is fixed, and meanwhile the problem that an electrocardiograph monitoring fingerstall falls off due to the fact that the child is active is solved; the fixing is firm and stable, and the practicability of the device is further improved.

The invention provides a main electrode water cooling mechanism of a mesh enclosure tool, and belongs to the technical field of machinery. The problem of poor stability in the prior art is solved. The main electrode water cooling mechanism of the mesh enclosure tool comprises a fixing plate, an electrode block, a base, a base plate and an insulating plate, wherein the fixing plate is in an lengthened plate shape, a concave connecting groove is formed in the fixing plate, the electrode block is fixedly connected to the base, the base plate is located between the electrode block and the base, the base matches the connecting groove, the base is connected to the connecting groove, and the insulating plate is positioned between the base and the fixing plate. The main electrode water cooling mechanism of the mesh enclosure tool is high in stability.

The invention provides a combined truss node structure, a bridge and a construction method, and relates to the technical field of bridge engineering. According to the method, aiming at the problem that a combined node position of a steel web member and a concrete inner chord member at a node position is easy to damage at present, arrangement of shear keys in a node structure is reduced through an integrated node; wherein through hole structures reserved on the joints are combined with steel bars to connect a bridge steel bar framework structure on one hand, and a pin structure is formed by concrete filled with the through holes on the other hand, so that the connection strength of the joints and a bridge concrete main body structure is improved; The structure comprises an integrated node, wherein the node comprises a chord member and a web member of which the end part is butted with the chord member; the chord member is circumferentially coated with a concrete layer, and the chord member is connected with a shear nail embedded in the concrete layer; a plurality of first through holes perpendicular to the axial direction of the chord members are formed in the positions, connected with the chord members, of the chord members and the web members, and the first through holes are matched with first steel bars penetrating through the joints and embedded in the concrete layer; the chord member is also provided with a second through hole, wherein the axis of the second through hole is vertical to the axis of the first through hole.