175results about How to "Prevent shaking up and down" patented technology

The invention discloses a method for shooting panoramic photos or videos based on a mobile terminal. The method includes the steps a vibration motor drives the mobile terminal to rotate according to shooting starting instructions; whether a rotating angle is equal to a preset angle is judged; the mobile terminal stops rotating and shooting according to the judgment result. Compared with the prior art, the motor of the mobile terminal drives the mobile terminal to rotate, vertical swaying generated when the terminal is moved by hand in the shooting process is avoided, the mobile terminal can be effectively rotated at constant speed, and therefore the quality of the shot panoramic photos or videos is guaranteed. The invention further discloses the mobile terminal for shooting the panoramic photos or videos.

A battery mounting device for electric vehicle disclosed in the invention includes a first motor, Second motor, Fan body, fixing bar, Installation box, screw, Nut holder, lifting box, Battery case, mounting bracket and seal support plate. A first motor is installed at four corner positions on the bottom surface of the top plate of the mounting box, the rotating shaft of the first motor is fixedlyconnected with one end of the screw rod by a coupling. As that screw rod is driven to rotate by the first motor. As that screw rod transmission principle is use for controlling the rise or fall of thenut seat, so as to control the rise or fall of the lifting box, so as to control the ascending and descending of the battery box in the lifting box. The battery box can be self-unloaded, and the installation, disassembly and maintenance of the battery box are more convenient. The sealing support plate is fixed and stable by using the mounting bracket, the battery box is avoided to sway up and down when the vehicle is bumpy by using the fixing bracket, and the fan body is driven to rotate by the second motor, so as to cool the battery.

The invention provides a flag-shaped and clamp-shaped self locking terminal, which comprises a cable connecting part and a female wiring terminal, wherein the female wiring terminal comprises an insertion groove, two elastic planes which respectively extend towards the middle and are used for covering a male wiring terminal are connected with the upper parts of vertical side walls at the two sides of the insertion groove, a seam is formed between the two elastic planes, an elastic sheet is formed on the bottom of the insertion groove, one end of the elastic sheet is connected with the bottom of a notch, the other end of the elastic sheet upwards extends, and the outline of the elastic sheet is smaller than a cavity formed at the bottom of the insertion groove, so the elastic sheet cannot generate the friction with a peripheral cut in the extruded moving process, in addition, the friction cannot be generated after an electric plating layer is plated on the elastic sheet, in addition, when the electric plating process is carried out, the plating layer at the peripheral cut part of the elastic sheet is more uniform, and the flag-shaped and clamp-shaped self locking terminal solves the problems that in the prior art, the gap with the bottom of the insertion groove is small, so the coating layer is not uniform, and the 24-hour salt spray test standard cannot be met.

The invention discloses a method for two-for-one twisting vehicle web break alarm, which is characterized in that a rotatable guide wheel on a principal shaft supports yarn and rotates with the action of self weight, tensile force and frictional force of the yarn; light through holes on the principal shaft and the guide wheel coincide once when the guide wheel rotates for a circle, which means the principal shaft let light in once; when web break happens to the yarn, the guide wheel stops revolving, light-in-light-shading cycle process in the principal shaft stops; whether web break happens to the yarn is confirmed by detecting whether the light-in-light-shading cycle process in the principal shaft stops or not and a combined aural and visual alarm is initiated when web break is confirmed. In the invention, on the precondition of not increasing the risk of yarn web break, break point and break point position of the yarn can be found in time, manual handling can be prompted in time and product quality can be ensured; in addition, working stress and labor intensity can be reduced and production efficiency can be improved.

The invention belongs to the technical field of automobile parts, and particularly relates to a vehicle-mounted clamping device. The vehicle-mounted clamping device comprises a base, a longitudinal plate and arc-shaped clamping jaws, wherein the longitudinal plate is arranged at the side edge of the base, and the arc-shaped clamping jaws are arranged on the upper portion of the base; the base is provided with an air cavity and a piston, the piston can move in the vertical direction, and a wedge block is arranged in the air cavity and can move in the horizontal direction along with movement ofthe piston; the inner sides of the two arc-shaped clamping jaws are opposite, and the arc-shaped clamping jaws can get close to each other in the horizontal direction along with movement of the wedgeblock; a baffle is arranged at the upper end of the longitudinal plate and is perpendicular to the longitudinal plate, and the baffle can move forwards in the direction perpendicular to the longitudinal plate along with downward movement of the piston; air channels are formed in the inner side of the longitudinal plate, one ends of the air channels are connected with the air cavity, and the otherends of the air channels are connected with the arc-shaped clamping jaws and the baffle. The clamping device can clamp bottles with different weights, and the problems of an existing clamping device that bottles cannot be taken out easily and jolt up and down are solved.

The invention discloses a lithium battery fixing frame with high-strength vibration prevention function and a mounting method of the lithium battery fixing frame. The lithium battery fixing frame comprises a shell plate fixedly mounted at the tail of an excavator, the top of the shell plate is fixedly connected with a placement plate through a mounting assembly, and the left side and the right side of the top of the placement plate are both fixedly connected with supporting plates, and a limiting mechanism is arranged between the opposite sides of the two supporting plates, and the limiting mechanism comprises a pressing plate and a driving motor. The invention belongs to the technical field of lithium batteries. According to the lithium battery fixing frame with the high-strength vibration prevention function and the mounting method of the lithium battery fixing frame, the limiting mechanism is arranged, and the driving motor is used for driving a driving rotating shaft to rotate, so that a transmission gear drives a transmission rack to move to be matched with movement of an upper fastening plate, and thus the front side and the rear side of a lithium battery can be fixed, and adjustment can be carried out according to the sizes of different batteries, so that installation is more stable, and the situation that the lithium batteries are damaged due to too large vibration strength of the excavator is avoided.

The invention discloses a direct insertion clip-shaped self-locking terminal which comprises a cable connecting part and a female wiring terminal, wherein the female wiring terminal comprises a slot, the upper parts of the vertical lateral walls at the two sides of the slot are connected with two elastic planes which respectively extend to the middle to coat a male wiring terminal, a gap is formed between the two elastic planes, an elastic flake is shaped at the bottom of the slot, one end of the elastic flake is connected with the bottom of a notch, and the other end of the elastic flake extends upwards. The contour of the elastic flake is smaller than the cavity formed at the bottom of the slot such that the elastic flake does not generate friction with surrounding incisions in the course that the elastic flake is extruded to move, the friction is not generated after an electroplated layer is plated on the elastic flake, when an electroplating process is performed, the plating layer at the surrounding incisions of the elastic flake is more uniform, therefore plating layer nonuniformity caused by small gap between the bottom of the slot in the prior art is avoided, and the problem that the standard of salt spray test for 24 hours can not be satisfied is solved.

The invention discloses a buckle type automobile instrument structure and a mounting method thereof. The buckle type automobile instrument structure comprises an instrument body; a plurality of clamplegs are arranged at the lower surface of the instrument body; the tops of the clamp legs are hinged to the lower surface of the instrument body by pin shafts; and the inner sides of the clamp legs are connected to bottoms of first push rods in a rotating manner by lug plates fixed by welding; and the tops of the first push rods are connected to the bottom of the instrument body by the other lug plates. The bottoms of the clamp holes are inserted into insertion holes formed in a console and are clamped with the console. A connecting sleeve is connected to the periphery of the bottom of the instrument body in a rotating manner. According to the invention, when the connecting sleeve rotates, the clamp legs are pushed to be contracted inwardly by the mutual effect of the top block at the connecting sleeve and limiting blocks at the clamp legs, so that the clamp legs are loosened from the insertion holes in the console. With a gasket plate, the instrument body is pushed out automatically in dismounting and thus the instrument is dismounted externally. The buckle type automobile instrument structure is convenient to install and repaired and is installed firmly.

The invention discloses a novel structure of metal curtain walls. The novel structure comprises a curtain wall and a keel, wherein the curtain wall comprises an upper side wall, a lower side wall, a left side wall and a right side wall; the keel is connected with the curtain wall; the four corners, near the side walls of the keel, of the curtain wall are fixedly connected with the keel through locking mechanisms; a first convex block is fixedly connected to the center of the left side wall, a first groove is formed in the center of the right side wall, and the first convex block is matched with the first groove; first clamping grooves are symmetrically formed in the two corresponding ends of the first convex block, and the first clamping grooves are internally and slidably connected with first clamping blocks which are matched with the first clamping grooves; first springs are fixedly connected to the side, close to the groove bottoms of the first clamping grooves, of the first clamping blocks, and the ends, away from the first clamping blocks, of the first springs are fixedly connected with the groove bottoms of the first clamping grooves; and first mounting grooves correspondingto the first clamping blocks are formed in the side wall of the first groove. The novel structure has simple structure and convenient operation, ensures the connection relationship between the metal curtain walls and improves the strength of the whole curtain wall.

The invention discloses a building pile.The building pile comprises a pile head, a pile body and a bearing mechanism which are connected in sequence.A ground holding mechanism is arranged on the side wall of the bottom of the pile body, a damping pipe and two connecting anchor pipes are arranged in the pile body, a reinforcing column is arranged between the two connecting anchor pipes, a support is arranged at the top of the pile body, a bearing table is arranged above the support and connected with the support through springs, a top column is arranged on the bearing table, a top plate is arranged at the top of the top column, and rib plates are arranged on the two sides of the top column.The building pile is simple in design, safe and high in stability and has shock resistance.

The invention belongs to the technical field of multiple-axis aircrafts, and specifically relates to a four-axis aircraft easy to assemble. A square-frame-shaped structure used for installing a main machine is formed by four machine arms; and the main machine is fixedly installed by banana plugs, banana connectors, a shrapnel locking part and the like, so that a structure is very firm when the main machine is installed in the square-frame-shaped structure, operating processes are easy when the four-axis aircraft capable of being easily assembled is assembled and disassembled, requirement for operation is low, and disassembled parts are convenient to accommodate and damping effect is improved after accommodation. Meanwhile, a connecting mode that the banana plugs are inserted into the banana connectors between the main machine and a motor is adopted, so that assembly is more convenient and faster, and installing of an electric wire between the machine and the motor is not needed.

The invention discloses a mechanical drilling machine with a fixing device. The mechanical drilling machine comprises a base plate, a drilling machine body and a fixed plate are fixedly connected to the upper surface of the base plate, and a first baffle is fixedly connected to the upper surface of the fixed plate. A first snap-gauge is fixedly connected to one side surface of the first baffle, sliding grooves are formed in the supper surface of the base plate, and a sliding block and a connecting block are movably connected inside each sliding groove. The upper surface of each sliding block is fixedly connected with the bottom of the corresponding connecting block, a movable plate is fixedly connected to the tops of the connecting blocks, and a second baffle is fixedly connected to one end of the movable plate. According to the mechanical drilling machine with the fixing device, through arrangement of the first baffle, the movable plate, the second baffle and screws, the problems that manual work is adopted for fixing the plates when plates are machined, thus the labor intensity of workers is large, the conditions of unstable fixing exist, hole diameters are easily enlarged, accordingly, the plates are caused to be scrapped, and business burden is increased are solved.

The invention discloses an assembling method of climbing type side slope small-sized drilling equipment. The equipment comprises a climbing walking trolley, an operation platform arranged on the climbing walking trolley, and an anchor drilling rig arranged above the operation platform. The assembling method of the climbing type side slope small-sized drilling equipment comprises the following steps of (1) installing a front connecting shaft wheel and a rear connecting shaft wheel at the end parts of a car frame; (2) splicing steel pipe components so as to form a fence, laying a panel on the car frame, and forming the operation platform; (3) installing a hauling device on the car frame; (4) installing a braking system; and (5) fixing the anchor drilling rig 1 above the operation platform 2by using a U-shaped connecting piece. According to the assembling method of the climbing type side slope small-sized drilling equipment provided by the invention, different rod pieces can be selectedto be freely assembled according to different inclination angles of a side slope, so that the need of practical engineering is met. The special braking system is arranged, so that the problem that theplatform swings up and down during drilling so as to cause the shaking and the breaking of a drill rod is effectively solved. The assembling method of the climbing type side slope small-sized drilling equipment provided by the invention is particularly suitable for emergency rescue work after mountain landslide and foundation pit collapse, and is convenient, rapid, and easy to operate.

The invention relates to a rotation type demolding mechanism for a J-shaped drain trap. The mechanism comprises a lower compound plate, wherein mold feet are mounted on the lower compound plate, a thimble base plate and a thimble panel are arranged among the mold feet, and an ejector rod is mounted between the thimble base plate and the thimble panel; a movable mold frame is mounted on the mold feet, a movable model cavity is formed in the movable mold frame, a fixed model cavity is formed in the movable model cavity, mold cores are arranged in the model cavities, and J-shaped drain traps are arranged among the model cavities and the mold cores in an injection molding manner. The mechanism is characterized in that left and right lengthened type chutes are respectively arranged on the left and right sides of the movable mold frame, and left and right depression bars are respectively arranged on the left and right chutes; left and right sliding block seats are arranged among the left and right depression bars, and the left and right chutes, and straightly-drawn mold cores are mounted on the left and right sliding block seats; connecting plates are mounted below the left and right sliding block seats; guide troughs are formed in the left and right lengthened type chutes and are matched with the connecting plates; a reverse-pushing oil cylinder is mounted below the left and right lengthened type chutes; fixed plates are mounted on the front and rear sides of the movable mold frame, and front and rear oil cylinders are mounted on the fixed plates and are connected with racks; rotating gears are mounted in the movable mold frame and are meshed with the racks; rotating plates are arranged on the rotating gears, rotating mold core sliding blocks are mounted on the rotating plates, and rotating mold cores are mounted on the rotating mold core sliding blocks and are matched with bent pipe parts of the J-shaped drain traps.

The invention relates to the technical field of drilling clamps, in particular to a drilling machine for a special-shaped workpiece. The drilling machine comprises a supporting mechanism, a clamping mechanism and a movable drilling mechanism, wherein the supporting mechanism comprises a supporting table and supporting columns, supporting legs are fixedly connected to the four end corners of the bottom face of the supporting table, a first rectangular groove is formed in the middle of the top face of the supporting table, a second rectangular groove is formed in the middle of one short side wall of the supporting table, and sliding grooves are formed in the top face of the supporting table by facing four diagonal lines with the middle of the supporting table serving as the center point. According to the drilling machine for the special-shaped workpiece, a first two-way lead screw and a second two-way lead screw are rotationally connected into the first rectangular groove and the second rectangular groove, a first connecting lug and a second connecting lug drive the clamp to clamp the special-shaped workpiece by rotating the first two-way lead screw and the second two-way lead screw, so that the surface of the special-shaped workpiece cannot be damaged, the whole fixing process is more time-saving and labor-saving, and the fixing efficiency of the special-shaped workpiece is greatly improved.

The invention discloses a plate overturning machine and relates to plate machining equipment. According to the main points of the technical scheme, the plate overturning machine comprises a support frame and a rotary frame rotationally connected with the support frame. The rotary frame comprises a rotary shell for holding a plate. Two layers of feed rollers are rotationally connected in the rotaryshell. A gap is reserved between the two layers of feed rollers, and the plate can pass through the gap. The two side faces of the rotary shell are provided with clamping devices for clamping the plate. The clamping devices comprise clamping rods slidably connected with the rotary shell, and driving parts driving the clamping rods to move in the direction close to or away from the rotary shell, and the clamping rods are located in the gap of the two layers of feed rollers. The plate enters the rotary shell from the gap of the upper layer and lower layer of rotary rollers, the driving parts drive the clamping rods to clamp raw materials in the rotary shell, thus the plate is kept stable in the rotation process, and damage to the plate is reduced.

The invention discloses a computer case stamping and feeding device and an operation method. The computer case stamping and feeding device comprises a stamping machine tool, a punch, a connecting arm,a machine frame, a sliding groove, a rack, a gear, a one-way bearing, a crank, a sliding block and a feeding disc; a mold seat is arranged at the upper part of the stamping machine tool; a positioning pin is connected to one side of the mold seat; the machine frame is connected to the middle of the stamping machine tool; a stand column is arranged at the upper part of the machine frame; a fixinghole is formed in the upper part of the stand column; a sliding block seat is arranged on the back side of the fixing hole; a sliding groove is formed in the middle of the sliding block seat; the crank is arranged in the middle of the fixing hole; a crank rotating shaft is arranged on the back side of the crank; the crank rotating shaft is rotationally connected with the fixing hole; the crank rotating shaft rotates in the fixing hole; a crank arm is arranged on the left side of the crank; a connecting rod shaft is arranged on the left side of the crank arm; a second hole is formed in the right side of a connecting rod and is rotationally connected with the connecting rod shaft; and the connecting rod shaft rotates in the second hole.

The invention discloses a full-automatic trace element analyzer, which relates to the technical field of trace element detection. The full-automatic trace element analyzer mainly comprises a fixed disk, a rotating disk, a driving shaft, a cleaner, a sample adding device, a test electrode, a liftable cleaning platform and the like. A slide rail and a slide way which cooperate with each other are arranged between the rotating disk and the fixed disk to prevent the rotating disk from vibrating up and down during rotation; contact sensors cooperate with balls, an audible and visual alarm gives analarm to remind an operator to replace or adjust the instrument in time when the rotating disk does not rotate in place, the cooperation between triangular fastening blocks and slots can prevent the rotary shaft from slightly rotating when the rotating disk rotates in place, and thereby the accuracy of measurement is ensured; and the number of measuring cup holes in the rotating disk can be permanently designed as six. The practicability is high.

The invention discloses a coiling frame with high stability. The coiling frame comprises a baseplate and a coiling cylinder; the baseplate is positioned below the coiling cylinder; two sides of the top of the baseplate are fixedly connected with support plates; the tops of the support plates are fixedly connected with fixed plates; chutes are formed in the tops of the fixed plates; the inner walls of the chutes are fixedly connected with first springs; one ends, far from the inner walls of the chutes, of the first springs are fixedly connected with slide plates; the tops of the slide plates are fixedly connected with short rods; and the tops of the short rods extend to the externals of the chutes. A sleeve is movably connected with a vertical plate through a bearing, and is convenient to rotate; a thread sleeve is rotated to drive transverse movement of a round pipe; the round pipe and a guide rod are extruded; and the guide rod pushes a clamping ring to vertically move to fix the coiling cylinder, so that the coiling cylinder is prevented from shaking up and down in the rotating process, stable conveying of cloth by the coiling cylinder can be guaranteed, and the cloth processing quality is improved.

Provided is a dental chair provided with a first-aid supporting device. The back portion of a backrest of the dental chair is provided with the first-aid supporting device capable of stably supporting the backrest of the dental chair when a patient needs first-aid treatment and after the backrest of the dental chair is laid flat. The first-aid supporting device can stably support the backrest of the dental chair, prevent the dental chair from vertically shaking during first-aid treatment and ensure smooth performing of the first-aid treatment.

The invention discloses a dust-proof charging pile display screen. The dust-proof charging pile display screen comprises a charging pile body, wherein the charging pile body is fixedly provided with two arc-shaped connection boards, end portions of the connection boards are connected with an extension portion A and an extension portion B, a spherical clamping space is formed between the extension portion A and the extension portion B, two ends of a display panel are provided with a clamping portion in matching with the spherical clamping space, a charging interface comprises a casing and an arc-shaped cover board, two ends of the cover board are fixed with clamping columns, the casing is correspondingly provided with a clamping seat in matching with the clamping column and a rectangular groove in matching with a baffle board, and an inner wall of a spherical chamber is provided with a fan-shaped groove. The spherical clamping space is in matching with the clamping portions of the end portions of the display panel, multiple engaging-tooth-shaped sealing faces are formed at connection portions, so seamless connection between the display panel and the connection boards is realized, and thereby a display screen of the charging pile on a severely-dusted road is prevented from generating a fuzzy interface.

The invention relates to a portable anti-collision test-tube rack for soil restoration test. The portable anti-collision test-tube rack comprises a main box, a limit plate and an internal telescopic grab bar, a sliding groove is fixedly formed in the outer side of the main box, the outer side of the sliding groove is connected with a closing plate, the sliding groove is movably connected with theclosing plate, a retaining ring is fixed to the outer side of the closing plate, the limit plate is mounted at the top of the inner wall of the main box, a storage rack is placed on the lower portionof the limit plate, the limit plate is movably connected with the main box, the storage rack is movably connected with the main box, the internal telescopic grab bar is mounted inside the storage rack, and the bottom of the internal telescopic grab bar is connected with the storage rack through screws. The portable anti-collision test-tube rack for soil restoration test has the advantages that theportable anti-collision test-tube rack for soil restoration test is provided with a movable ring capable of fixing a test-tube, the possibility of collision between the test-tube and the main box inmovement of the portable anti-collision test-tube rack is prevented, and test-tube breakage is avoided.

The invention belongs to the technical field of environmental protection equipment, and particularly relates to a shock-resistant vehicle-mounted air purifier. The shock-resistant vehicle-mounted air purifier comprises an air purifier body and a base, wherein a rotating column is fixedly connected to the center of the bottom end of the air purifier body, the bottom end of the rotating column extends into the base and is connected with a bottom plate through a rotating piece; a first push rod is fixedly connected to the center of the bottom end of the bottom plate, a fixed box is fixedly connected to the center of the bottom end of the base, a first push plate is connected to the inner wall of the fixed box in a sealing and sliding mode, and the bottom end of the base is fixedly connected with a set of suction discs. The invention provides a shock-resistant vehicle-mounted air purifier, and the air purifier aims to solve the problems that the vehicle-mounted air purifier is not firmly fixed, the vehicle-mounted air purifier slides under the inertia effect when an automobile is suddenly braked during driving, the vehicle-mounted air purifier collides with an automobile trim and is damaged, the economic loss of a user is increased, and the practicability of an existing vehicle-mounted air purifier is reduced.

The invention discloses a steel pipe stamping and punching machine. The steel pipe stamping and punching machine comprises a workbench. A fixed frame is arranged on the upper portion of the workbench.A first cylinder arranged vertically downwards is inlaid in the fixed frame. A locating frame is arranged below the first cylinder. The extension end of the first cylinder is provided with a stampingplate. The bottom of the stamping plate is provided with a punching tool. The stamping plate extends into an inner cavity of the locating frame. One side of the locating frame is provided with a U-shaped guide plate. A sliding frame is erected above the U-shaped guide plate. The sliding frame is provided with a sliding mechanism. The bottom of the sliding mechanism is connected with a push rod extending into an inner cavity of the U-shaped guide plate. The end of the push rod is connected with a push block. A pipe feeding device is arranged on one side of the U-shaped guide plate. A laser displacement sensor is inlaid in the position, located above the U-shaped guide plate, of the fixed frame. The steel pipe stamping and punching machine has the advantages of being high in machining efficiency and automation degree, facilitating control and adjustment on the punching distance, saving a great deal of labor force and ensuring the punching efficiency and the qualified rate.

The invention discloses a dedusting mechanism of a transverse cutting machine used for production of crush-resistant corrugated base paper. The dedusting mechanism comprises a transverse cutting machine body. Supporting columns are fixedly connected to the two sides of the top of the transverse cutting machine body. A transverse plate is fixedly connected to the tops of the supporting columns. A transmission mechanism is fixedly connected to the left side of the top of the transverse plate. A transmission roller is arranged on the inner sides of the supporting columns. Limiting bearings are fixedly connected to the two sides of the transmission roller. A limiting box is fixedly connected to the outer side of each limiting bearing. According to the dedusting mechanism, an air draft head isarranged to drive a wiping plate to move rightwards to wipe blades, removed scraps are collected by the air draft head and are transferred into a hose, the hose transfers the scraps into an exhaust fan, the exhaust fan transfers the scraps into an exhaust pipe, the exhaust pipe transfers the scraps into a dedusting box, the scraps are filtered through a filter screen in the dedusting box, and thus, an automatic dedusting effect is achieved.

The invention relates to a novel impingement plate structure for a heat exchanger. The novel impingement plate structure comprises an inverse V-shaped impingement plate, a rib plate and a stiffener, wherein the inverse V-shaped impingement plate is in a flat plate structure with a V-shaped bulge, and is welded at the lower end of a gas inlet of the heat exchanger through the rib plate; the rib plate is in bar-shaped structure; one end of the rib plate is welded to the inner wall of a shell, and the other end of the rib plate is welded to the horizontal section of the inverse V-shaped impingement plate; the stiffener is welded between the inverse V-shaped impingement plate and the rib plate, so as to realize secondary fixing of the inverse V-shaped impingement plate. When incoming fluid firstly flows into the inverse V-shaped impingement plate, airflow is dispersed by an inverse V-shaped face of the bulge, so that the impact effect on the impingement plate by the airflow is reduced; the inverse V-shaped impingement plate is fixed below the inner wall of the heat exchanger by means of welding the rib plate; the inverse V-shaped impingement plate is fixed by the stiffener for the second time, so that the inverse V-shaped impingement plate is prevented from shaking up and down with pressure vibration, and the concentrated stress at the welding position between the rib plate and the inverse V-shaped impingement plate can be reduced at the same time. Therefore, the impingement plate is prevented from dropping off. The novel impingement plate structure provided by the invention has the advantages of simple structure and convenience for manufacturing.

The invention provides a production and manufacturing method for a flange connection metal gasket. The production and manufacturing of the metal gasket are completed through cooperating a supporting frame, an auxiliary device, a stamping device and the like; the main following existing problems in the current metal gasket production process are solved: a, a round hole in the middle of the metal gasket shakes and deflects during the punching and rotary cutting process, so the size of the internal round hole of the manufactured metal gasket is irregular, the metal gasket is affected to be sleeved on the flange, so the connection strength of the flange and the part is reduced; b, when the round hole in the middle of the metal gasket is produced by a rotary cutting method, the remaining metalmaterial produced on the metal gasket remains in the interior of a rotary cutter, so the residual material blocks the rotary cutter after long-term use, the rotary cutting work cannot be performed normally, the residual metal material in the rotary cutter needs to be taken out manually, but the remaining material in the rotary cutter is difficult to be taken out manually, and a lot of working timeis required.

The invention discloses an earphone seat. The earphone seat comprises an earphone seat body and a connecting piece body, wherein a first groove and a second groove are formed in the left side of the middle rear part of the earphone seat body; a third groove and a fourth groove are formed in the right side of the middle rear part of the earphone seat body; inclined surfaces are formed on the two sides of the top end of the rear part of the earphone body; a fifth groove and a sixth groove are respectively formed in the rear ends of the inclined surfaces on the two sides; a first terminal and a first buckle are arranged on the left side of the front part of the connecting piece body; a second terminal and a second buckle are arranged on the right side of the front part of the connecting piece body; a third buckle and a fourth buckle are respectively arranged on the left side and the right side of the top end of the rear part of the connecting piece body; the first terminal and the second terminal are respectively buckled with the first groove and the second groove; the first buckle and the second buckle are respectively sleeved with the second groove and the fourth groove; the third buckle and the fourth buckle are respectively sleeved with the fifth groove and the sixth groove. The invention provides the earphone seat; the connection in the vertical direction and the connection in the horizontal direction of the earphone are both very stably and firmly; horizontal and vertical shaking can be prevented; the structure is simple; subsequent welding success rate can also be guaranteed.

The invention discloses a water-cooled dustproof cooling device for a domestic optical modem. The device comprises a fixed base, wherein a plurality of plastic sucking discs are arranged at the bottom of the fixed base; a mounting groove is arranged at the top center of the fixed base; a first permanent magnet is arranged in the mounting groove; an optical modem is arranged in the mounting groove; a second permanent magnet is arranged at the bottom end of the optical modem; the first permanent magnet is matched with the second permanent magnet; struts are both arranged at two sides of the mounting groove; a top plate is arranged at the top ends of the struts; an electric cabinet is arranged at the top center of the top plate; operating buttons are arranged on the electric cabinet; a storage battery is arranged in the electric cabinet; a circuit mainboard is arranged on the storage battery; a single-chip microcomputer is arranged on the circuit mainboard; the storage battery is connected to the single-chip microcomputer through a lead; and an electric push rod is arranged at the corner of one side of the top plate. The device has the advantages of compact structure and good dustproof and heat dissipation effects.

The invention relates to the technical field of heaters, in particular to a new energy vehicle battery box which comprises a box body. The top of the box body is connected with a cover plate which isconnected with an upper hanging lug, the upper hanging lug is connected with a locking structure which comprises a lower hanging lug, a third spring, an upper limiting block, a lower limiting block and a sliding rod, the lower hanging lug is slidably connected with the sliding rod which is connected with the upper limiting block and the lower limiting block, and the lower hanging lug is connectedwith the third spring; partitions are arranged in the box body, air holes are formed in each partition, second springs are arranged on the partitions and the box body and connected with oblique plates, first springs are arranged on the undersurface in the box body, the tops of the first springs are fixedly connected with a moving plate, the top of each of the left and right outer walls of the boxbody is fixedly connected with a lifting ring, a through hole is formed in the middle end of the left side wall of the box body, the left-side wall of the box body is fixedly connected with a mountingframe at the through hole, a motor is fixedly mounted in the mounting frame, and the output end of the motor is fixedly connected with blades uniformly. The new energy vehicle battery box has good battery fixing effect, thereby being capable of avoiding batteries from shaking during movement.