10results about How to "Prevent roundabout" patented technology

The invention relates to the technical field of safety protection appliances, in particular to a speed difference automatic controller which comprises a shell, a steel wire rope is wound on a rope winding disc, the speed difference automatic controller further comprises a limiting head fixedly connected to one end of the steel wire rope, a limiting groove is formed in the rope winding disc, and a locking bolt is connected to the limiting groove through threads. The limiting head is located in the limiting groove and is limited and fixed through a locking bolt. The device is provided with the replacement opening in the shell, the limiting head on the steel wire rope can be conveniently and rapidly disassembled, the whole shell does not need to be disassembled, meanwhile, when the steel wire rope is completely pulled out of the shell, the hexagonal protrusion can be driven to be inserted into the cylinder through reset of the tension spring, then the rope winding disc is locked, and the rope winding disc is prevented from rotating under the action of the clockwork spring; meanwhile, when the limiting head on the steel wire rope is pulled out of the shell, the traction rope can be synchronously pulled out, and therefore when a new steel wire rope is installed subsequently, the limiting head on the new steel wire rope can be rapidly and conveniently pulled into the limiting groove through the traction rope.

The invention discloses a round fiber-reinforced thermoplastic rib bending reinforcing device and method, and belongs to the technical field of thermoplastic rib bending reinforcing, a heating mechanism is arranged between a fixed clamping mechanism and a rotary clamping mechanism, an infusion pipe is arranged on the inner side of the heating mechanism, a round fiber-reinforced thermoplastic rib penetrates through the infusion pipe, and the round fiber-reinforced thermoplastic rib is arranged in the rotary clamping mechanism. The melting point of the filling pipe is larger than that of the circular fiber-reinforced thermoplastic rib, the inner diameter of the filling pipe is larger than the outer diameter of the circular fiber-reinforced thermoplastic rib, the fixed clamping mechanism and the rotary clamping mechanism are used for fixing one end of the circular fiber-reinforced thermoplastic rib respectively, a guide rail groove is formed in the platform, scales are arranged on the guide rail groove, and a pressing mechanism is slidably arranged in the guide rail groove. According to the circular fiber reinforced thermoplastic rib bending device, the strength is enhanced and deformation is reduced when a circular fiber reinforced thermoplastic rib is heated and bent, the cross section of the bent part cannot be flattened, and the inner diameter of the bent part can be controlled at will.

This utility model discloses a fresh-mixed beverage bottle cap, comprising an upper cap, a middle cap, and a lower cap. The upper cap includes a top cap and an anti-theft ring connected below the top cap. The inner wall of the top cap has internal threads that mate with the middle cap. The anti-theft ring is fitted around the middle cap, with one part connected to the top cap via a point connection and the other part connected to the top cap via a pull strip. The two sides of the pull strip are respectively connected to the top cap and the anti-theft ring via point connections. The lower cap is inserted into the beverage bottle and screwed onto the bottle neck. The middle cap is inserted into the lower cap, and the upper cap is screwed onto the middle cap, sealing the top of the middle cap to form a cavity for storing honey. Through the cooperation of a guide post and a guide groove, the middle cap moves downward within the lower cap, puncturing the bottom of the lower cap, allowing the honey in the cavity to flow into the beverage bottle through the puncture. The upper, middle, and lower caps employ a multi-stage sealing system. Through a precision sealing structure, the pre-treated honey meets the colony count requirements, with a residual crystal nucleus content of ≤2%, preventing damage to the seal due to crystal expansion during storage.

The utility model belongs to the technical field of battery production and manufacturing, and particularly relates to a sealing structure for a top cover, which comprises a main body and a liquid injection hole sealed by a sealing nail, the sealing nail comprises a sealing nail cover and a sealing rubber nail, and the sealing structure also comprises a sealing piece and a limiting piece, the sealing piece is arranged between the sealing nail cover and the main body in contact with the sealing nail cover; the limiting piece penetrates through the first mounting hole and the second mounting hole to be fixedly mounted in the mounting groove, and the limiting piece is used for fixing the sealing rubber nail; the sealing rubber nail and the inner wall, making contact with the sealing rubber nail, of the liquid injection hole are provided with thread structures matched with each other. The sealing performance of the sealing rubber nail is improved by using the limiting piece and the threaded structure, and meanwhile, the sealing performance of the sealing nail cover is improved by using the sealing piece, so that the condition that electrolyte overflows from the liquid injection hole is avoided. In addition, the utility model also discloses a battery top cover comprising the sealing structure, a battery and an electric device.

The application relates to the technical field of battery packs, in particular to an anti-loose electrical connection battery pack. The technical scheme comprises a shell, an internal battery pack and a liquid cooling channel. The innovation is that a hydraulic locking module is integrated into the connecting part of the copper bar leading out of the shell. The module fills transmission medium in the flow cavity of the limiting ring, and controls the in-out of the plug by using a driving mechanism, so as to block or release the rotating path of the blocking block linked with the nut. When the plug blocks the flow cavity, a hydraulic lock is formed, and the nut is completely prevented from loosening; when the plug exits, the nut can be normally screwed. The application fundamentally solves the problem that the electrical connection is prone to loosening in a vibrating environment, is high in safety and convenient in operation and maintenance.

The utility model relates to the technical field of trifloxystrobin production, in particular to a gas purification device for production, which comprises a shell, the shell comprises a lower shell body and an upper shell body, a purification cavity and an accessory cavity are formed in the lower shell body, a bent filter plate is fixed in the purification cavity, a through impeller is arranged below the bent filter plate and connected with a motor arranged in the accessory cavity, a panel is fixed to the upper side of the upper shell body, and the lower side of the upper shell body is connected with the through impeller. An air inlet grille is embedded in the panel, and the air inlet grille is arranged above the purification chamber. The motor is arranged to drive the through impeller to rotate, gas in a production environment is absorbed by the gas inlet grille, is deeply filtered and purified by the bent filter plate and then is exhausted, so that the air is purified, the air composition in the production environment is prevented from exceeding the standard, the harm to the body of a worker is avoided, the gas inlet grille is used for gas pretreatment, and the production efficiency is improved. The gas purifier is used for thoroughly purifying gas.

The utility model relates to a mute centrifugal fan, and belongs to the technical field of fans, the mute centrifugal fan comprises a fan shell, an air inlet cover is arranged at an air inlet of the fan shell, the air inlet cover is of a cavity structure and is filled with a sound absorbing material, and a plurality of first through holes allowing sound waves to enter the air inlet cover are formed in the air inlet cover; the air inlet cover is used for covering the air inlet so as to limit the path, perpendicular to the air inlet, of sound waves and airflow, the air inlet of the fan shell is provided with an annular sleeve along the inner wall of the air inlet, the annular sleeve is provided with a first mounting groove used for being filled with sound absorption materials along the circumferential face of the annular sleeve, and the annular sleeve is provided with a first sealing plate used for covering a notch of the first mounting groove along the circumferential face of the annular sleeve. The first sealing plate is provided with a plurality of second through holes allowing sound waves to enter the first mounting groove, the peripheral face of the air inlet cover and the first sealing plate jointly define an air inlet space, and the sound waves can be reflected between the peripheral face of the air inlet cover and the first sealing plate in a reciprocating mode. The sound energy attenuation efficiency is improved, and then the noise reduction effect is improved.

The utility model discloses an assembly type retaining wall which comprises retaining wall plates, the number of the retaining wall plates is two, and the inner sides of the retaining wall plates are all arranged on the outer side of a soil wall base body in an attached mode. Then, the fastening screw can be manually screwed clockwise, so that the fastening plate and the fixed baffle move towards the position of the soil wall base body until the multiple retaining wall plates on the rear side of the fixed baffle are tightly attached to the soil wall base body, under the action of the retaining wall plates, the soil layer of the soil wall base body can be prevented from falling off to a certain extent, and after the soil of the soil wall base body is retained, the retaining wall base body is prevented from falling off. The limiting screw can be screwed below the fastening plate, the limiting screw and the limiting pad are tightly attached to the lower surface of the fastening screw, the fastening screw is prevented from rotating under the lateral pressure effect of the earth wall base body, and therefore the reinforcing structure of the earth retaining wall is prevented from loosening.

The utility model relates to the technical field of spiral ground piles, and discloses an anti-falling type spiral ground pile, which solves the problem that the existing spiral ground pile possibly rotates or loosens, and comprises a spiral column, a mounting plate is fixedly mounted at the top end of the spiral column, a drill bit is fixedly mounted at the bottom end of the spiral column, and an anti-falling mechanism is mounted in the spiral column. A limiting mechanism is mounted on the anti-falling mechanism, the anti-falling mechanism comprises a guide column fixed in the spiral column, and two guide plates are symmetrically and movably connected to the outer side of the guide column in a sleeving manner; according to the utility model, through the cooperation between the lead screw and the lifting plate and the cooperation between the stand column and the movable rod, when the hand wheel is rotated, the two guide plates can slide along the guide columns conveniently, and through the cooperation between the guide blocks and the guide grooves, the sliding stability of the guide plates is ensured, so that the two tips can be far away from each other and inserted into soil; and therefore, the spiral column can be conveniently fixed and prevented from rotating or loosening.

The present invention discloses a supercritical CO2 fracturing test device, comprising a fracturing tube, a rock and a protective steel cylinder surrounding the rock, a data acquisition component being fixed on the rock; the fracturing tube extends into a fracturing hole inside the rock; a clamp is provided on the outer sleeve of the fracturing tube, and the clamp is connected to the protective steel cylinder through at least two iron chains. A tightener is provided on each iron chain, and the tightener comprises a box body and a brake assembly fixed inside the box body for limiting the rotation of a driving gear, a motor is fixedly connected inside the box body, and the output shaft of the motor is fixedly connected to the central axis of the driving gear; winding gears are meshed on both sides of the driving gear, and the winding gears and a winch for winding the iron chain are fixed on the same rotating shaft, and the rotating shaft is rotatably connected to the box body through a bearing. The fracturing tube can be limited by the tightener, the clamp and the iron chain to prevent it from being displaced by force and affecting the test results or causing safety hazards due to the flying tube.