75results about How to "Increase contact pressure" patented technology

The utility model discloses a split type generator, which comprises a rotor, a stator and an end cover, the rotor is fixed on a rotating shaft through a flange and an expansion sleeve, the flange comprises a flange edge, the rotor is at least divided into three sections, the stator and the end cover are respectively at least divided into two sections, the flange and the expansion sleeve are respectively at least divided into two sections, and the expansion sleeve is fixed on the rotating shaft. A gap is formed between the inner surface of the expansion sleeve and the rotating shaft, the outer surface of the expansion sleeve is in contact with the inner surface of the flange, conical surfaces matched with each other are arranged at the contact parts of the expansion sleeve and the flange, and the generator tightens the expansion sleeve by connecting the split flanges, so that the rotating shaft is clasped. The flanges and the expansion sleeve are combined through conical surface nesting matching contact, tightening operation is conducted on the expansion sleeve through the connecting and fastening effect between the split flanges, and the purpose that the expansion sleeve tightly holds the rotating shaft is achieved. The contact area and the contact surface pressure of the expansion sleeve and the flange are large, the positive pressure of friction force generated on the contact surface is large, and the expansion sleeve and the rotating shaft can be clamped more tightly.

The invention belongs to the technical field of grinding equipment, and discloses a high-energy jet mill with a pressurizing structure, the high-energy jet mill comprises a base and a fixing plate, the fixing plate is fixedly mounted at the top of the base, a grinding bin is fixedly mounted in the fixing plate, and a first ventilation pipe is fixedly mounted on the outer wall of the grinding bin; and a main airflow pipe is fixedly mounted on the inner wall of the grinding bin. When the two sets of pressurizing bins conduct airflow supply operation, the other two sets of pressurizing bins can compress air in the pressurizing bins through piston movement of piston rods, so that when a pressurizing airflow pipe is aligned with the pressurizing bins, the compressed air can improve the contact pressure between airflow grinding materials and the surface of a machined material, the speed of pressurized airflow is higher, and the working efficiency is improved. Compared with the prior art, the impact frequency on the surface of the machined material is larger, the machining time can be remarkably shortened, the production efficiency is improved, the production cost is reduced, and more importantly, the grinding effect of the material is better, and grinding is more thorough.

The invention provides a gluing method for gluing a cork board and a base material, which comprises the following steps of: 1, brushing glue on the gluing surface of the cork board and the base material, and adhering the cork board and the base material; 2, the airtight bag film is pasted to the base material through a sealing rubber strip, the cork board pasted to the base material is covered with the airtight bag film, and an airtight area is formed at the glue joint position of the cork board; and 3, an opening is formed in the airtight bag film, a suction head communicated with a vacuum pump is placed in the airtight bag film, the airtight area in the airtight bag film is pressurized through the vacuum pump, negative pressure is formed in the airtight area, and gluing of the cork board and the base material is achieved. Large and uniform contact pressure is provided for the glue joint area of the cork board in a vacuum pressing mode, and the glue joint strength and the glue joint quality between the cork board and the base material are improved.

The invention discloses a radio frequency coaxial switch, and relates to the technical field of radio frequency connectors, and the switch comprises a switch body, the bottom of the switch body is fixedly connected with an installation butt joint structure, the installation butt joint structure is used for guaranteeing that an internal microstrip transmission line carries out signal transmission on a circuit board through a shielding cover, and a dynamic contact point regulation and control assembly is matched with a dynamic regulation and control assembly. Contact pressure can be automatically adjusted, it is ensured that communication signals are accurate, the contact pressure can be integrally and effectively adjusted automatically according to high-frequency signals or low-frequency signals, error codes of the communication signals caused by poor contact are reduced, the overall operation performance is improved, magnetic particles are gathered in the flexible superconducting contact points in the specific direction, and the contact quality is improved. The contact pressure is increased or reduced, so that the overall signal transmission performance can be improved, the signal loss and reflection can be reduced, and the reliability and efficiency of the radio frequency coaxial switch in different frequency signal processing can be improved.

The utility model belongs to the technical field of mulching film laying, and particularly relates to a mulching film laying device for tobacco planting, which comprises a film laying machine frame, and a mulching film roll is rotatably mounted on the lower portion of the advancing end of the film laying machine frame. A tension adjusting and opening assembly used for opening a mulching film to prevent wrinkles when the mulching film is laid on the mulching film roll is arranged on the side, opposite to the advancing end, of the mulching film roll and located in the middle of the film laying machine frame. The tension adjusting opening assembly comprises an inverted U-shaped lifting plate installed on the lower portion of the film laying machine frame in a lifting mode, a guide roller rotationally installed on the lower middle portion of the U-shaped lifting plate and tension adjusting mulching film opening rollers transversely installed on the outer walls of the two sides of the U-shaped lifting plate in a telescopic mode. The periphery of the guide roller is sleeved with a foam compacting sleeve for compacting a mulching film to cover different concave-convex planting land parcels of tobacco, and the periphery of the tension adjusting mulching film opening roller is sleeved with an anti-skid rubber sleeve for opening the mulching film in a back-to-back and outward mode. The mulching effect of the plastic film is improved and wrinkles are prevented.

The invention relates to the technical field of gypsum board production, and discloses a gypsum board cutting device for gypsum board production and processing, which comprises a cutting table, the top of the cutting table is fixedly connected with a fixing frame, the top of the cutting table is slidably connected with two roller frames, and a motor is started to drive a first connecting rod to rotate and enable a second connecting rod to rotate; when the second connecting rod rotates, a sliding block can be pushed to move up and down, when the sliding block moves downwards, a fixing rod moves downwards, a cut-off tool descends, the cut-off tool makes contact with a gypsum board, a first connecting rod is driven to descend and slide on the side wall of a concave-convex block, and then the first connecting rod is squeezed; the gypsum board cutting device moves towards the first fixing plate to drive the cut-off tool to move, the cut-off tool moves transversely while extruding a gypsum board, and when the cut-off tool conducts transverse cutting, the cutting force is small, tearing of surface layer paper of the gypsum board is reduced, and burrs are effectively prevented from occurring after the surface layer paper of the gypsum board is cut.

The present invention belongs to the field of mechanical design technology, and particularly relates to an Ω-shaped metal ring for connecting composite thin-walled circular tubes, an Ω-shaped metal ring and a composite thin-walled circular tube assembly and a molding method thereof, the Ω-shaped metal ring comprising an Ω-shaped metal ring body, the Ω-shaped metal ring body comprising an Ω-shaped corrugated portion and a circular tube portion extending outward along the outer edge of the Ω-shaped corrugated portion, the wall thickness of the circular tube portion being greater than the wall thickness of the Ω-shaped corrugated portion, the connection between the circular tube portion and the Ω-shaped corrugated portion being formed with a chamfered portion forming a continuous arc transition, and the outer edge end of the circular tube portion being formed with a shoulder whose wall thickness is thicker than that of the circular tube portion. In the present invention, the Ω-shaped metal ring structure can reduce the problems of low strength and large deformation of traditional U-shaped or V-shaped metal ring structures, and provide a connection structure solution for multi-component modular mechanical equipment that simultaneously meets multi-dimensional requirements such as strength, vibration, deformation control, and connection sealing.

The utility model provides a moving contact system and a circuit breaker comprising the same. The moving contact system comprises a plurality of contact fingers which are arranged in parallel; the contact supporting piece comprises a supporting plate and a pair of supporting arms arranged on the two sides of the supporting plate, and the first ends of the plurality of contact fingers are pivotally installed between the pair of supporting arms; the plurality of springs are arranged corresponding to the plurality of contact fingers and are positioned between the plurality of contact fingers and the supporting plate of the contact supporting piece; and the insulating grating comprises a connecting part which is arranged between the contact finger and the spring. According to the moving contact system, the insulating grating is arranged between the contact finger and the corresponding spring, so that the spring can provide larger contact pressure for overcoming electro-dynamic repulsive force during short-time tolerance, the tolerance performance is improved, meanwhile, the insulating grating and the contact finger can keep synchronous movement, friction force is reduced in the switching-on / switching-off process, and the service life of the moving contact system is prolonged. And the mechanical performance of the circuit breaker is improved.

The utility model discloses a steel pipe derusting device relates to steel pipe processing technical field, the utility model discloses a rack is provided with two support rollers on the rotation of the rack, the first positioning block of adjustable position, second positioning block, limit support and mounting bracket are configured to the rack, the first positioning block is provided with the first positioning wheel of contact with the inner wall of steel pipe on the rotation, the second positioning block is provided with the second positioning wheel of contact with one end of steel pipe on the rotation, the limit support is provided with the tower wheel on the rotation, the utility model discloses when rusting to the outer surface of steel pipe, can carry out axial positioning and radial positioning to steel pipe, avoid the axial excursion and radial jounce of steel pipe rotation, improve the stability of steel pipe and rusting evenness, keep the contact pressure stability of steel wire wheel and steel pipe, avoid the steel pipe from the support roller, reduce the potential safety hazard, can also adapt to the steel pipe of different size simultaneously, improve the use flexibility and applicability, therefore have more practicality.

The invention discloses a vibration feeder for producing and processing Jincherry sealing rings, relates to the technical field of feeders, and aims to solve the problems that in the process of material vibration leading-out and conveying, the phenomenon of staggered stacking is likely to occur under vibration, material blocking occurs during conveying after stacking, and normal operation of material conveying is affected. According to the vibration feeder for producing and processing the golden cherry sealing rings, through cooperation of the pressing wheel and the rubber rings, when the pressing wheel is driven by the conveying mechanism to rotate, the rubber rings are driven to rotate, through protrusions on the surfaces of the rubber rings, materials reaching the positions are driven to move and enter the conveying mechanism in the rotating process, and meanwhile when the materials guided out through vibration are stacked, the materials are conveyed to the conveying mechanism. The rubber ring better drives the material at the top to move through deformation and friction force increase under contact pressure, the material guided out through vibration is convenient to convey, meanwhile, material clamping is avoided, meanwhile, the material reaching the position is independently brought in and conveyed, and material stacking is avoided.

The invention discloses an efficient soil sampling mechanism for mountain geological survey, which relates to the technical field of geological sampling and comprises a supporting assembly, a sampling assembly and a pressing assembly. The supporting assembly comprises a supporting table and a side supporting frame with an adjustable inclination angle, and the lower end of the side supporting frame is connected with a supporting seat with a groove through a rotatable connecting seat, so that stable supporting is achieved, and the supporting assembly is matched with the irregular earth surface; the sampling assembly is in threaded connection with the sampling tube and the extension rods through the top cover and is fixed through short bolts, so that the multiple extension rods can be spliced to adapt to deep sampling; the downward pressing assembly applies downward pressure through a U-shaped downward pressing plate and a pedal and is matched with a supporting rod protection part, a driving ring and a rotating disc to drive a sampling pipe to rotate and drill into a soil layer. The mechanism can avoid sampling deviation, improves supporting stability and operation labor-saving performance, is convenient for component maintenance, effectively solves the problems of low mountain soil sampling efficiency and poor stability, and is suitable for mountain geological survey scenes.

The utility model relates to a high-voltage direct-current relay with a double-moving-contact-piece structure, which comprises a shell, an electromagnetic driving mechanism, a ceramic cover, two leading-out terminals and a moving contact piece assembly, the moving contact piece assembly comprises a driving frame, a driving contact piece, a driving contact spring, a driven contact piece, a driven contact spring and a lower short circuit ring, and the lower short circuit ring is arranged on the driving contact piece and the driven contact piece. The two leading-out terminals are provided with two circular static contact planes extending in the ceramic cover, and two ends of the driving contact piece are provided with two driving contact planes matched with the two circular static contact planes. The two ends of the driven contact piece are provided with two driven contact planes matched with the two circular static contact planes. The utility model has the advantages of simple structure, stable and reliable performance, small contact resistance and strong short-circuit current resistance.

The utility model relates to an intelligent safety electricity meter terminal, which comprises a shell, an electricity meter management terminal and at least one group of safety electricity meters, the safety electricity meters are connected with a data interface of the electricity meter management terminal, and data transmission and safety verification of the safety electricity meters are respectively managed through the electricity meter management terminal; in the electric meter terminal, a plurality of safe electric meters can share one electric meter management terminal, and safety certification management and communication management are respectively carried out on the safe electric meters through the electric meter management terminal, so that the size of the electric meters is reduced, and the occupied space of a single electric meter is reduced; as long as the newly added safe ammeter is connected to the data interface of the ammeter management terminal, and the ammeter management terminal manages the data transmission process of the safe ammeter in a unified manner, safe data transmission can be realized, and ammeter installation and management are facilitated.

The invention discloses a steel wire rope end self-locking device, which belongs to the technical field of steel wire rope joints, and comprises a sliding guide embedding block, a fastening screw, a petal-shaped conical expansion sleeve and a conical fixing seat, one end of a steel wire rope is fixedly connected with the sliding guide embedding block, and the other end of the steel wire rope penetrates through the petal-shaped conical expansion sleeve and the conical fixing seat; the sliding guide embedding block is used for fixing the end part of a steel wire rope through the plurality of fastening screws and is connected with the conical fixing seat; and the petal-shaped conical expansion sleeve is inserted into the conical fixing seat after the steel wire rope is stressed. The long end of the steel wire rope sequentially penetrates through the petal-shaped conical expansion sleeve and the conical fixing base, under the condition that the long end of the steel wire rope is pulled, the petal-shaped conical expansion sleeve is pressed into the conical fixing base through the sliding guide embedding block, and the outer side of the petal-shaped conical expansion sleeve is squeezed and then contracts inwards to lock the steel wire rope. The effect that the steel wire rope is tensioned more and more tightly under the external force stretching condition is achieved. The steel wire rope has the advantages that the end of the steel wire rope is pulled tighter and tighter when being stretched by external force, and the work is stable.

The utility model belongs to the field of circuit breakers, and particularly relates to an isolation circuit breaker which comprises a mechanism frame, a circuit breaker unit and an isolation switch unit, the isolation switch unit comprises an isolation shaft, an isolation knife and a static contact, the isolation knife is in linkage fit with the isolation shaft, the isolation knife acts along with the isolation shaft, and connection or disconnection of the isolation knife and the static contact is achieved. Two cooling fins are arranged at the positions, corresponding to the two sides of the isolation knife, of the static contact, one end of each cooling fin is provided with a contact part extending in the direction of the isolation knife, and when the isolation knife is connected with the static contact, the contact parts of the two cooling fins are attached to the two sides of the isolation knife respectively; the two cooling fins are additionally arranged on the static contact, when the isolation knife is connected with the static contact, the contact portions of the two cooling fins are attached to the two sides of the isolation knife, the cooling fins can conduct heat of the isolation knife, heat dissipation of the isolation knife is facilitated, and therefore temperature rise can be reduced.

The utility model discloses a rubber diaphragm which comprises a diaphragm body, the diaphragm body is formed by compositing an elastic layer and a tensile reinforcing layer arranged on one side of the elastic layer, an annular sealing flange is arranged on the edge of the elastic layer, a plurality of reinforcing ribs are embedded in the tensile reinforcing layer, and the annular sealing flange is provided with an annular sealing groove. The plurality of reinforcing ribs are radially distributed from the center of the elastic layer to the edge of the elastic layer, and through the composite structure of the elastic layer and the tensile reinforcing layer, both flexibility and tensile property are considered; the sealing flange enhances the edge sealing performance, and the radial reinforcing ribs prevent the diaphragm from being pressed and deformed.

This application relates to an oil collecting plate for a high-pressure fuel pump. The oil collecting plate has a protrusion extending from both sides, located on the side edges. This protrusion increases the thread depth of the high-pressure fuel outlet connector, thereby increasing the effective number of thread turns and also increasing the thickness of the high-pressure sealing area, effectively blocking the impact of high-pressure fuel. To avoid stress concentration at the contact point between the high-pressure fuel outlet connector and the oil collecting plate, the original planar seal is replaced with a conical seal, improving the sealing performance of the oil collecting plate and reducing stress concentration within it. This application is applicable to the high-pressure sealing of diesel engine oil collecting plates.

The utility model discloses a kind of deep-sea camera convenient maintenance cabin structure, it is related to deep-sea equipment technical field, including outer cabin and spiral power assembly, the inside of outer cabin is equipped with maintenance mechanism, one end of outer cabin is equipped with spiral power assembly, in the utility model, through sealing ring is connected in outer cabin outside, the inner ring surface of threaded compensating pipe is attached with sealing ring, ensure preliminary sealing, external water pressure is passed through observation window and outer cabin and is passed to first gasbag, first gasbag is compressed and passes through connecting channel and is passed to compensating gasbag with pressure, compensating gasbag is compressed and drives push plate movement, telescopic link moves on fixed sleeve plate, dynamically adjust push plate position to compensate internal and external pressure difference, further seal the junction of outer cabin and connecting cover, enhance the contact pressure of sealing surface, the linkage design of gasbag and compression spring can respond to deep-sea water pressure change in real time, avoid high pressure to cause cabin deformation or sealing failure.

The invention discloses a polyethylene polyamine derivative synthesis reactor, relates to the technical field of reactors, and aims to solve the problem that heavy solid materials are accumulated at the bottom of the periphery and are heated unevenly under the action of stirring centrifugal force when the materials are stirred through stirring blades and are solid-liquid mixtures in the material reaction process. According to the polyethylene polyamine derivative synthesis reactor, the separation barrel is matched with the auger plate, so that materials on the inner side and the outer side of the separation barrel circularly flow in the rotating process, and the materials with moderate solid and liquid can drive the solid materials to flow along with the materials in the circular flowing process of the liquid, so that the solid materials are uniformly contacted with heat transferred by the heat conduction mechanism; and the situation that the materials are directly driven to rotate for stirring and mixing, so that the solid materials with increased mass are accumulated at the bottoms of the peripheries of the materials under the action of centrifugal force, and the materials are heated unevenly is avoided.

The cold-proof walking structure comprises a robot body, a track groove, walking wheels, a first monitoring probe, a second monitoring probe, a deicing plate and an oil bin, a sealing plate is clamped to one side of the robot body, a driving gear is rotationally connected into the robot body, and an auxiliary gear is meshed with one side of the driving gear; heat pipes are evenly and fixedly connected to the upper side and the lower side in the oil bin, a heating plate is fixedly connected to the side, close to the track groove, of the robot body, connecting pipes are in contact with the two sides of the oil bin, vibrating plates are fixedly connected to one sides of the connecting pipes, and the vibrating plates are located in the oil bin; the lubricating device has the beneficial effects that the heat pipe is arranged to heat the oil bin, vibration generated when the extending brush makes contact with the rotating driving gear is conducted to the connecting pipe and the vibration plate, the vibration plate rapidly moves in the oil bin within a small range, lubricating oil in the oil bin is rapidly melted, and therefore the lubricating efficiency is improved.

The present invention proposes a shock absorber, wherein a damping friction cylinder is coaxially inserted into a lower support cylinder, a second flange is provided on the outer wall of the bottom end of the damping friction cylinder, the damping friction cylinder is installed through the upper cover, the second flange is located below the first flange and blocks each other; the damping friction cylinder is open at the bottom end and sealed at the top end, and a compressor spring is provided in the damping friction cylinder, one end of the compressor spring is connected to the bottom plate, and the other end is connected to the inner top end surface of the damping friction cylinder; a damping pressure ring and a damping washer are provided in the cavity enclosed by the outer wall of the damping friction cylinder, the inner wall of the lower support cylinder, the top end surface of the first flange and the bottom end surface of the upper support cylinder, and the damping pressure ring and the damping washer are coaxially sleeved on the outer wall of the damping friction cylinder. The shock absorber enhances the shock absorption effect by designing the existing damping washer in the lower support cylinder and installing it through a specific structure, and the damage problem caused by hard contact of components in the prior art will not occur when the shock absorber is tilted.

This invention relates to a residual current module for a miniature residual current circuit breaker, comprising a handle, a latch, a trip latch, a torsion spring, a contact frame rotatably disposed within a housing, a spring disposed between the contact frame and the housing, a neutral (N) linear contact that is linked to the contact frame, and a residual current tripping assembly disposed within the housing and cooperating with the trip latch. The handle is connected to the latch via a connecting rod, and one end of the latch is connected to the contact frame via a U-shaped connecting rod. The residual current tripping assembly includes an electromagnetic trip unit, a linkage rod slidably disposed within the housing and linked to the electromagnetic trip unit, and a push rod rotatably disposed within the housing and linked to the linkage rod. The push rod has a driving plane that abuts against one end of the trip latch. The driving plane moves with the push rod, causing the trip latch to move and unlocking the latch and the latch. This invention has the advantages of simple structure, stable and reliable performance, fast opening and closing speed, flexible operation, and sensitive tripping action.

The double-screw extruder comprises an extruder body, the input end of the extruder body is communicated with a conveying pipe used for conveying raw materials for producing the grass-proof cloth, the top of the conveying pipe is communicated with a feeding hopper, and the top of one side of the feeding hopper is fixedly connected with a semicircular disc. A cleaning assembly used for cleaning the inner wall of the feeding hopper is arranged at the top of the semicircular disc, and a sealing assembly used for sealing the opening of the feeding hopper is arranged on one side of the semicircular disc. Through the arrangement of the cleaning assembly, the scraping plate can continuously scrape the inner wall of the feeding hopper, attached raw materials are removed in time, raw material accumulation is avoided, and the service life of the feeding hopper is prolonged. Meanwhile, through the cooperation of the spring, the sliding disc and the push rod, the position of the scraper blade can be adjusted in a self-adaptive mode according to the actual situation of the inner wall of the feeding hopper, the scraper blade is always in close contact with the inner wall, cleaning can be effectively conducted, and the stripping effect on raw materials attached to the inner wall of the feeding hopper is guaranteed.

The utility model belongs to the technical field of connectors, in particular to a high-stability connector terminal, which comprises a male terminal and a female terminal, and the connecting end of the male terminal and the inserting end of the female terminal are electrically connected through the elastic matching of a first bending part at the top end and a second bending part at the bottom end. The two bending parts are designed to be in an arc shape and are bent towards the interior of the insertion end, the effective contact area is increased through the staggered contact faces, the contact resistance is reduced, and the inclined chamfers and the arc-shaped grooves at the inlets form a double-guiding system, so that through the innovative double-section type elastic contact structure, the connection stability is improved, and the service life of the connector is prolonged. The connector is suitable for scenes such as new energy automobiles and rail transit with strict reliability requirements, and has the remarkable advantages of stable connection, efficient conduction, convenient operation and the like.

The invention discloses a culture device for preparing immune cells, relates to the technical field of cell culture, and aims to solve the problems that in the shaking process, due to shaking inertia, the shaking amplitude of a material is too large, the material is excessively splashed, or a culture material is damaged in the shaking process generated by shaking. According to the culture device for preparing the immune cells, a rubber ring is matched with a grooved wheel, the grooved wheel rotates in a wheel groove of a grooved block in the process of moving up and down on a connecting plate and rotating, a rubber pad is tightly attached to the surface of the grooved wheel, friction force generated when the grooved wheel rotates is increased, and in the process that the grooved wheel is driven to rotate without external force, the friction force is increased; rotation of the grooved wheel and the connecting plate is limited, and the situation that in the process of shaking the culture material, due to shaking inertia, the vibration amplitude of the material is too large, the material is excessively splashed, or the culture material is damaged in the vibration process generated by shaking is prevented.

The present invention discloses a needle selection device for a circular weft jacquard machine, belonging to the technical field of jacquard machines, comprising a needle cylinder and a bottom ring 1 and a bottom ring 2 fixed to each other, the bottom ring 1 being fixedly mounted with a connecting seat, the connecting seat being mounted with a cam assembly, the needle cylinder being formed with a needle slot, the needle slot being mounted with knitting needles, intermediate needles and jacquard pieces from top to bottom, the knitting needles, intermediate needles and jacquard pieces being matched with each other, the bottom ring 2 being mounted with a needle selector and an auxiliary cam connected to the jacquard piece, the side wall of the needle slot being provided with and connected with a receiving slot, the receiving slot being connected with a resistance member for increasing the resistance of the jacquard piece, the resistance member being slidably connected with the receiving slot through a control member, the control member being used to change the corresponding area of ​​the resistance member and the jacquard piece. The needle selection device for a circular weft jacquard machine of the present invention ensures stability and accuracy during needle selection, while reducing the probability of accidental needle removal caused by vibration actuating the jacquard piece.

The application provides a double-sided electroplating tool suitable for rotary sputtering, which comprises a lower ring body, an upper ring body and an upper cover connected in a matching mode, a conductive ring with a group of lower conductive comb teeth is arranged on the lower ring body, an upper conductive ring with a group of upper conductive comb teeth is arranged on the upper ring body, a group of supporting cylinders in contact with the upper cover are uniformly distributed on the upper ring body, a conductive column connected with the upper conductive ring is arranged in the supporting cylinder, a conductive disc is arranged in the upper cover, a group of conductive guide columns corresponding to the conductive column are uniformly distributed on the conductive disc, a conductive shaft extending out of the upper cover is arranged on the conductive disc, and a group of electroplating liquid exchange holes penetrating through the upper cover and the conductive disc are uniformly distributed on the upper cover. The application has the advantages of simple structure, convenient use, realization of double-sided electroplating of a wafer on the basis of a tilted rotary sputtering electroplating process cavity structure, small difference between double-sided electroplating rates, high uniformity, simple operation, strong applicability and the like.

The utility model relates to the technical field of cylinder cover sealing, and discloses a reinforced sealing structure for a cylinder cover, which comprises a cylinder body, an insertion channel is arranged on the top surface of the cylinder body, a silica gel sealing gasket is fixedly arranged on the inner wall of the insertion channel, a plurality of cavities are arranged in the silica gel sealing gasket, and the cavities are communicated with the insertion channel. A titanium alloy memory spring piece is fixedly arranged in the cavity, a connecting cover assembly is inserted into the inserting channel, and a cylinder cover is fixedly arranged at the top of the connecting cover assembly. According to the reinforced sealing structure for the cylinder cover, the silica gel sealing gasket, the titanium alloy memory spring piece and the connecting cover assembly are arranged, the connecting cover assembly is inserted into the inserting channel, the contact area between the main sealing cover and the silica gel sealing gasket and the contact area between the main sealing cover and the sealing strip and the silica gel sealing gasket are increased, multiple sealing lines are formed, a redundant sealing path still exists even if local failure occurs, and the sealing effect is good; the titanium alloy memory spring piece increases the contact pressure between the silica gel sealing gasket and the connecting cover assembly, and the sealing performance is further enhanced.

The application relates to a defective product detection paper shell paste box machine and relates to the technical field of paper shell detection. The machine comprises a paper drawing mechanism, a paper conveying mechanism and a detection mechanism which are sequentially connected. The paper drawing mechanism and the paper conveying mechanism are arranged on a workbench. The paper drawing mechanism is used for sequentially conveying paper shells to the paper conveying mechanism. The paper conveying mechanism is used for conveying the paper shells to the detection mechanism. The detection mechanism comprises a detection assembly and a kick-off assembly which are arranged on the workbench. The detection assembly is used for detecting the quality of the paper shells and conveying the paper shells to the kick-off assembly. The kick-off assembly is used for separating the unqualified paper shells. The application has the effects of automatically separating defective products and improving production efficiency.

This invention discloses a safety airbag and a pipeline sealing device. The airbag includes a cylindrical body and multiple seals located inside the cylindrical body and sequentially connected to it. It also includes an inflation / deflation device located on the multiple seals. Multiple annular sealing rings are provided on the outer surface of the cylindrical body. The multiple seals include a front seal, a first middle seal, a second middle seal, and a rear seal. The front seal and the first middle seal, the first middle seal and the second middle seal, and the second middle seal and the rear seal respectively enclose the cylindrical body to form a first independent compartment, a second independent compartment, and a third independent compartment. This invention solves the problem of water leakage caused by contact between the airbag and the pipeline wall.