103results about How to "Won't come off" patented technology

The invention relates to a structure and a method for welding a target material and a backboard, wherein the method for welding the target material and the backboard comprises the following steps: providing a tantalum target material; forming an intermediate layer on the welding surface of the tantalum target material; and performing welding operations on the intermediate layer through a hot isostatic pressing method so as to weld a copper or copper alloy backboard to the tantalum target material. The method can perform extensive welding to effectively prevent metals form being oxidized and improve the bonding strength between the tantalum target material and the copper or the copper alloy backboard, thus the tantalum target material cannot break away in the sputtering process so as to perform sputter coating normally.

The invention discloses a self-locking rail clamping device. The self-locking rail clamping device comprises a base, a pair of clamping pliers and a telescopic device, wherein the pair of clamping pliers is hinged to the base and is provided with a clamping chuck, and the telescopic device drives the pair of clamping pliers to rotate; a guiding sleeve is fixed on the base, a guiding rod is arranged in the guiding sleeve, a blocking ring is fixed at the upper end part of the guiding rod, a fastening nut is arranged at the lower end part of the guiding rod, the blocking ring is hinged to the clamping pliers through a pair of link rods, and a compression spring which is located between the blocking ring and the guiding sleeve is sleeved on the guiding rod. The self-locking rail clamping device is simple in structure and easy in production and can guarantee that the rail clamping device is firmly clamped on a rail and can not be disengaged under unexpected conditions, such as power outage and the like.

The invention relates to a power conversion device of a mechanical transmission system, more particularly to a shifting system of an automobile transfer case. In the shifting system, drive pinion external splines, input shaft shifting external splines, shifting engagement sleeve internal splines and drive gearwheel external splines all employ the splines with the same modulus and teeth number, tooth crests of the engagement sleeve internal splines, the drive pinion external splines and the drive gearwheel external splines shrink inwards, the end face line, from the tooth crest to tooth root, of each spline positioned on the end face is processed from a shape of minus sign into a shape of reversed V, and the shifting engagement sleeve internal splines, the drive pinion shifting external splines, the input shaft shifting external splines and the drive gearwheel shifting external splines are regulated in the thickness of tooth thereof in the direction of axis. The head of the spline is designed with particular angle and shape, which can ensure fast positioning during the bonding of the splines, without the phenomenon of 'gear sliding' and 'out of gear'.

The invention provides a movable combination pin which comprises a columnar pin shaft. One end of the pin shaft is provided with a boss, the boss is provided with two holes, the holes are located at opposite two sides of the boss respectively, and axes of the two holes are not on one identical straight line; the movable combination pin further comprises an elastic ring which is in the shape of a loop with an opening, and two ends of the elastic ring are inserted into the two holes respectively. According to the movable combination pin provided by the invention, the columnar pin shaft of which one end is provided with the boss, the opposite two sides of the boss are provided with the two holes of which the axes are not on one identical straight line and the elastic ring is inserted into the two holes; as two hinge points of the elastic ring are not on one identical straight line, an elastic force is generated after the elastic ring is buckled on the pin shaft to lock, so as to realize self locking of the movable combination pin, and guarantee that the movable combination pin does not fall off when vibrating and rotating along with a locking shaft.

The invention provides a metal non-woven fabric composite board and a processing method thereof. The metal non-woven fabric composite board comprises a metal material layer on the surface layer, a non-woven fabric layer at the bottom layer and a binding material layer in the middle, wherein the metal material layer and the non-woven fabric layer are bonded together in a high temperature compounding or cold compounding manner by virtue of the binding material layer. The binding material layer comprises a macromolecule coating and an adhesive, wherein the metal material layer and the non-woven fabric layer are bonded together through high temperature rolling by virtue of the macromolecule coating, and the metal material layer and the non-woven fabric layer are bonded together through rolling by virtue of the adhesive. The metal non-woven fabric composite board has the advantages of light weight, heat resistance and low manufacturing cost, and construction is simple and bonding is firm when the metal non-woven fabric composite board is applied to the external wall of a building.

The invention relates to a constant-pressure variable radial plunger pump. The inner bore of a pump case is a long circle; an annular stator is in sliding fit with the pump case, two sides of the inner circle of the stator are in movable fit with a return stroke ring respectively, and the return stroke ring adopts ZQA19-4 albronze; a rotor is freely sleeved on a pintle valve, plungers are evenly distributed in the radial direction of the rotor, inner bores of the plungers are provided with wide annular grooves with the width of 2.2 mm, and clamp springs with the diameter of 2.1 mm are arranged in the grooves, so as to increase locking force to a connecting rod ball; a cambered disc surface of a connecting rod is additionally provided with an annular groove B for storing oil, and oil film is generated when the annular groove B rotates at a high speed, so as to improve the lubricating performance and have good wearing resistance; the pintle valve is provided with a sealed annular groove A in the axial direction and provided with five oil storage holes respectively on the side of a V-shaped groove, and oil film is generated when the annular groove A rotates, so as to improve the lubricating performance. The constant-pressure variable radial plunger pump has the advantages of simple structure, small volume, low noise, large locking force of the clamp springs, no disengagement of the plungers and the connecting rod, and high lubricating performance and wearing resistance of parts; and the return stroke ring adopts the ZQA19-4 albronze and has strong wearing resistance, so the whole service life is long.

The invention discloses a double-layer car pallet, which comprises a bottom pallet component, an upper pallet component, a small frame, a big frame component, a front roof box device, a rear roof box device and a roof support device. A side wheel is arranged at the end part of the side surface of a bottom main beam of the bottom pallet component; multiple bearing wheels are arranged on the bottom surface; the bottom main beam and a bottom auxiliary beam of the bottom pallet component are correspondingly provided with bolt pin holes for mounting bottom lane rods; lane boards with equal space are arranged between the bottom main beam of the bottom pallet component as well as the bottom auxiliary beam and a forklift sleeve, and form car carrying lanes in pairs with the lane rods; and oblique guide boards are also fixed on the car carrying lanes at one end close to the big frame component, of the bottom pallet component. The double-layer car pallet disclosed by the invention has the advantages that: the product is lighter, the production organization is convenient, the appearance quality is consistent, the shortcomings of high possibility of loosening and rusting of threads are overcome, the pallet assembly/disassembly operation is quick, the complete functions of the double-layer car pallet can be maintained, and the functions of a conveyor are exerted furthest.

The invention belongs to the technical field of barbells, and in particular relates to a self-generating shared barbell, which includes a counterweight drive plate, a barbell counterweight plate, a first barbell bar, a second barbell bar, a trigger mechanism, and a coil ring. When people use the present invention When the barbell is designed; when the user wants to use the barbell designed by the present invention without scanning the code, the two-dimensional code sensor will make the trigger handle in the closed state; under the reuse of the barbell's own gravity, the first barbell on both sides The bar is disengaged from the corresponding barbell weight plate; so the user cannot perform normal exercises; when the user uses the barbell designed by the present invention after scanning the code; at this time, the two-dimensional code sensor will make the trigger handle in the In the open state; the user first lifts the barbell with both hands; lifts the barbell and reverses the barbell; makes the whole barbell on the upper side of both hands; finally lifts the barbell upwards.

The invention discloses a peristaltic pump structure which comprises a motor, a pump body, an upper cover, a rolling component and a hose, wherein the motor is fixedly connected with one end of the pump body, an extrusion cavity is arranged at the other end of the pump body, the rolling component and the hose are both arranged in the extrusion cavity, the hose surrounds the rolling component, the motor is in transmission connection with the rolling component, the upper cover is fixedly connected with the other end of the pump body, the inlet end and the outlet end of the hose extend out of the pump body, the rolling component comprises a rolling roller and a bracket, radial convex wings are respectively arranged at the upper end and the lower end of the bracket, the upper end of the rolling component is connected to the radial convex wing arranged at the upper end of the bracket, the lower end of the rolling component is connected to the radial convex wing arranged at the lower end of the bracket, and fixing joints are respectively arranged at the inlet end and the outlet end of the hose and are installed in a locking installation groove of the pump body in a locking way. The invention has good extrusion effect and long service life.

The invention discloses a novel rail clamping device. The rail clamping device comprises a base, a pair of clamping pliers with chucks, a connecting rod and a hydraulic motor, wherein the pair of clamping pliers is hinged on the base, the connecting rod is installed on the base in a rotatable manner and comprises a lower connecting shaft, a worm and an external thread section, the lower connecting shaft is connected with the base, the worm is arranged at the upper end of the lower connecting shaft, the external thread section is arranged at the upper end of the worm and is screwed with a rotating nut, a lantern ring is sleeved on the rotating nut and is hinged with the upper ends of the pair of clamping pliers by a pair of link rods, and a worm gear meshed with the worm is fixed on an output shaft of the hydraulic motor. The rail clamping device has a simple structure, is easy to manufacture, can clamp rails firmly under the unforeseen circumstances such as power failure and the like, and can not come away.

The invention relates to a polypropylene plastic water pipe for a shower room backboard. The water pipe of the shower room backboard is respectively provided with a top-spray shower head pipeline, a movable shower head pipeline, a massage spray nozzle pipeline and a foot massage spray head pipeline. Connecting pipelines and each functional component are connected by various joints, and splicing joints of all assemblies are of thread type. Polypropylene plastic water pipes are connected in a hot melt way. A polypropylene movable joint is conveniently connected with a water faucet, a shower head, spray nozzle threads or other pipes with threads. When connected, the water-spray massage spray nozzle is connected by a movable joint from the water faucet, then the polypropylene plastic water pipe is connected with the spray nozzles of the shower room, and the quantity of spray nozzles is a plurality. A three-way and a four-way of the polypropylene plastic joint are connected by branch pipes in the hot melt way, and each branch pipe is connected with one spray nozzle. A water inlet of the spray nozzle is made into a screw rod and matched with a nut of the polypropylene movable joint, the massage spray nozzles are respectively inserted into spray nozzle holes of the shower room backboard, a tightening washer is fastened, a rubber washer is lined, and the movable nut is sleeved into the screw rod of the spray nozzle and tightened.

The invention relates to a building material conveying device which comprises a conveying unit and a collecting unit connected with the conveying unit, wherein the conveying unit comprises multiple layers of stacked push-pull plates which can be pushed and pulled layer by layer from the inner layer to the outer layer in a top to down direction, wherein the inner surface of a push-pull plate on the innermost layer is smooth, and a sliding push-pull raised ridge is formed on the outer surface in the vertical direction; a sliding push-pull groove is formed in the inner surface of a push-pull plate on the outermost layer in the vertical direction, and the outer surface is smooth; and sliding push-pull raised ridges are formed on the outer surfaces of the rest push-pull plates on the middle layer in the vertical direction, and sliding push-pull grooves are formed in the inner surfaces of the push-pull plates in the vertical direction. The problems of time consumption, labor consumption and lower efficiency of a conventional building material conveying method can be solved, the defects of complicated structure, larger energy consumption and high construction cost are overcome, and the building material conveying device has the advantages of simple and ingenious structure, convenience and safety in use and capability of improving construction efficiency and safety, and can meet requirements of actual construction conditions.

The invention discloses an electronic steering gear which comprises a motor. A ball screw is arranged below the motor, a fixing seat is arranged on the ball seat, a first belt wheel is arranged on a rotating shaft of the motor, a second belt wheel is arranged at one end, close to the rotating shaft, of the ball screw, and the first belt wheel and the second belt wheel are connected through a belt. The electronic steering gear is simple in structure, ingenious in design, free of causing disconnection of a motor shaft and the ball screw and convenient to maintain.

The invention discloses a waveguide welding fixture which comprises a supporting platform and a plurality of sets of clamping assemblies arranged in the length direction of the supporting platform. Each clamping assembly comprises two supporting bases and two swing blocks, wherein the two supporting bases are symmetrically fixed to the two ends of the supporting platform, and the two supporting bases are arranged on the two sides of the supporting platform in the width direction; each swing block comprises a swing block body and a rotating base, wherein the swing block body and the rotating base form the whole of the swing block, the lower end of the rotating base is connected with the corresponding supporting base through a rotating shaft, the lower end face of each swing block body is incontact with the upper end face of the supporting platform, and the opposite inner side faces of every two corresponding swing blocks are provided with protrusions with semicircular cross sections; and the length direction of the protrusions is the same as the length direction of the supporting platform, and the center lines of the protrusions are parallel to the upper end face of the supportingplatform. The waveguide welding fixture solves the problems that during second-time vacuum brazing of a waveguide antenna, first-time-welding welding line comes away, and the direct size accuracy is difficult to guarantee.

The invention discloses a heating electrode for a reinforcement heated and upset end. The heating electrode comprises an electrode bracket; a power device and a heating electrode are arranged on the electrode bracket; the power device pushes the heating electrode to move, or pushes the electrode bracket to drive the heating electrode to move; a slide column is arranged on the electrode bracket, and is provided with a spring; the front end of the spring is arranged at the back end of the heating electrode; the back end of the spring is fixed; and a spring located in a compression state applies the spring acting force to the heating electrode. The heating electrode is a floating form, continuously generates the thrust in the heating process, guarantees no release between the electrode and the end surface of a reinforcement due to heating softness of the reinforcement, is uniform and fast in heating, can prevent generation of electric sparks, is high in heating efficiency, only needs the time of about 2 seconds, and improves the machining efficiency.

The invention discloses an integral hydraulic rail clamping device. The rail clamping device comprises a base, a hydraulic station, travelling wheels and a clamping device, wherein the hydraulic station is mounted on the base; the travelling wheels are arranged on the base; the clamping device is arranged on the base; a mounting plane is arranged on the base; the clamping device comprises a base, a pair of clamping pliers with chucks and a telescopic device; the clamping pliers are hinged on the base; the telescopic device drives the pair of clamping pliers to rotate; a guide sleeve is fixed on the base; a guide rod is arranged in the guide sleeve; a blocking ring is fixed at the upper end of the guide rod; a clamp nut is arranged at the lower end of the guide rod; the blocking ring is hinged with the clamping pliers by a pair of link rods; a compression spring arranged between the blocking ring and the guide sleeve is sleeved on the guide rod. The integral hydraulic rail clamping device has a simple structure, is easy to manufacture, can clamp rails firmly under the unforeseen circumstances such as power failure and the like, and can not come away.

The invention discloses a steering gear with a buffer effect. The steering gear comprises a base, a motor and a ball screw. The base is provided with a base plate with a retainer plate at the end. The motor is fixed to the outer side surface of the retainer plate through a motor holder. The ball screw is arranged at the position, corresponding to a motor revolving shaft, in the retainer plate, and is connected with the motor revolving shaft through a coupler. The steering gear is simple in structure and skillful in design. As the flexible coupler has certain capacity of compensating relative deviation between two axes of the coupled two shafts, and particularly, the flexible coupler with metal elastic elements has good buffering and damping performance and high bearing capacity and is adaptable to occasions with high changes of speed and load and with high temperature or low temperature, separation of the motor shaft and the ball screw is avoided and maintenance is facilitated.

The invention discloses a coat suitable for children with autism. The coat comprises a coat body, a placket, internal buckles and external buckles; each internal buckle includes a buckle body and a push button arranged inside the buckle body, and the buckle body is internally provided with a stepped hole with an upper larger diameter hole end face and a lower smaller diameter hole end face; the buckle body is internally provided with a spring, and the push button is fixed on the top of the spring; the inter wall of the push button is provided with at least a pair of sliding chutes arranged oppositely, and a sliding block pin is arranged between the limiting chutes and slidably matched with the limiting chutes; each external buckle includes a limiting part and a plug fixed on the surface of the limiting part, and the upper part of the plug is provided with an annular neck; the plug passes through the stepped hole, and the annular neck is positioned above the smaller diameter hole of the stepped hole; when the spring is in a natural state, the sliding block pin slides to the lower parts of the sliding chutes and is matched with the annular neck in a clamping mode, and the plug is matched with the annular neck in a clamping mode; when the spring is in a compression state, the sliding block pin slides to the upper parts of the sliding chutes and is separated from the annular neck. The coat suitable for children with autism has the advantages of being novel in structure and convenient to wear, can exercise the coordination of two hands and the flexibility of the coordination of hands and eyes at the same time, and therefore is suitable for children with autism to wear.

The invention belongs to the technical field of mounting boxes, in particular to an electronic communication equipment mounting box, which includes a support base, a mounting box, a support bar; underthe normal condition, that the support rod and the mounting box can keep the stable state without being impacted by the triggering mechanism, the limiting disk, the universal joint and the limiting mechanism, but the ordinary mounting box may be damaged when being impacted, and the signal transmission line in the mounting box is pulled out; When the mounting box is impacted, the mounting box andthe support rod will move horizontally in the impacted direction; As that support rod is disengage from the inner re of the universal joint under the action of the impact force, the mounting box is prevented from being damaged by the large impact force directly, the mounting box is protected, and the mounting box can be prevented from moving under the driving of the impact object, and the signal transmission line in the mounting box is pulled out; At that same time, the universal joint swing with the support rod so as to facilitate the support rod to smoothly disengage from the base.

The invention relates to an anti-dropping sealing structure connected between corrugated pipes. The anti-dropping sealing structure comprises a spigot section, a socket section, a sealing ring and ananti-dropping part; a corrugated structure in which the peaks and troughs are alternately arranged in the axial direction is formed in the outer peripheral wall of the spigot section, the sealing ringis arranged in a wave trough at the front end of the spigot section, the anti-dropping part is arranged in a wave trough at the rear end of the spigot section, the socket section comprises a limitingsection, a receiving section and a clamping section, and the inner peripheral wall of the limiting section and the inner peripheral wall of the receiving section are both in a big-end-front conical shape; and the shapes of the front side wall, the rear side wall and the inner peripheral wall of the sealing ring are matched with the shapes of the wave troughs, the outer circumferential wall of thesealing ring is tightly matched with the inner circumferential wall of the receiving section, the lower end of the anti-dropping part is fixedly connected into the wave trough, the spigot section isinserted into the socket section, and the upper end of the anti-dropping part abuts against the clamping section. According to the corrugated pipe assembly, the sealing ring is effectively prevented from driving the pipe to axially rebound, so that not only the installation is convenient, but also the sealing effect is ensured, even the later geological sedimentation is not separated, and the service life is long.

The invention discloses a conical roller bearing. At the large-diameter end of an outer ring rollway of the conical roller bearing, a floating check ring is arranged on an outer ring, a flange protruding out of an inner ring rollway is formed on the small-diameter end of the inner ring rollway, and the large-diameter end of the inner ring rollway does not protrude out of the inner ring rollway; when the bearing is subjected to reversed axial force, the large end face of a conical roller contacts the floating check ring, the small end face of the conical roller contacts the flange on an inner ring, the reversed axial force is transferred by the flange on the inner ring, the conical roller and the floating check ring, the bearing is not released, so that one conical roller bearing can be subjected to two-way axial force; and the same effect can be achieved without using the two conical roller bearings, so the use of the conical roller bearing is prevented from being influenced due to the release of the conical roller bearing, and the space of installing the conical roller bearing is saved.

The invention discloses a bracket conveying system with a retraction function. The bracket conveying system comprises a soft head, a developing ring, an inner pipe, a back fixer, a middle pipe, an outer pipe, a connecting piece, a stainless steel push rod, a push handle and a bracket, wherein the soft head, the developing ring, the inner pipe, the back fixer, the middle pipe, the stainless steel push rod and the push handle are connected integrally to form an inner pipe assembly; the connecting piece, the developing ring and the outer pipe are connected integrally to form an outer pipe assembly; the bracket is nested in a cavity between the inner pipe assembly and the outer pipe assembly; a supporting leg at the near end of the bracket is clamped on the back fixer; and after the inner pipe assembly is fixed, the bracket can be pushed and pulled to release and retract by pushing and pulling the outer pipe assembly.