185results about How to "Avoid indentation" patented technology

The invention discloses a fused quartz plate welding machine with a clamping effect, and relates to the technical field of fused quartz plate welding, the fused quartz plate welding machine comprises a threaded sleeve plate, and a fillet pressing plate is arranged on one side of the threaded sleeve plate; according to the fused quartz plate welding machine with the clamping effect, the hollow air cushion is arranged to be a square rubber body which is internally provided with a hollow area and provided with filleted corners, and a hollow cylinder is fixedly connected to the inner wall of the hollow air cushion, and the hollow air cushion is arranged on one side of the filleted corner pressing plate to make elastic contact with a fused quartz plate; the pre-tightening force is adjusted to be proper force for clamping the fused quartz plate by compressing the reset spring, so that the surface of the fused quartz plate is prevented from being affected by the material of the quartz plate and being easily impressed or even damaged when the quartz plate is rigidly clamped; and the situation that when the fused quartz plate is directly clamped by the fillet pressing plate, the force is difficult to control, excessive clamping is likely to happen, and the fused quartz plate is damaged is prevented.

The invention belongs to the technical field of machine tool machining, and particularly relates to a multi-axis vertical numerical control machine tool which comprises a machine tool outer box, a cutting component is arranged at the top of the inner wall of the machine tool outer box, clamping equipment is arranged at the axis of the bottom of the inner wall of the machine tool outer box, and a cutting blank is arranged in the middle of the clamping equipment; the machine tool outer box comprises an outer protection shell, and side baffles are rotationally connected to the left side and the right side of the inner wall of the outer protection shell correspondingly. In order to solve the problems that a part of residues separated from a cutting blank are diffused into air and then gradually attached to a rotating joint of a cutting part, after long-time work, the joint is seriously abraded, and even the joint is blocked due to excessive accumulated residues, an adsorption sliding rod used for guiding airflow is arranged around the cutting blank, so that the problem that the joint is blocked due to the fact that the adsorption sliding rod is used for guiding the airflow is solved; chippings falling off from the cutting blank are precipitated downwards along with airflow, the amount of the chippings floating in the area above the outer protective shell is greatly reduced, and therefore the effect of protecting the rotating joint of the cutting component is achieved.

The invention relates to the technical field of transfer line carrying machinery, and discloses an automobile hub coating transfer line carrying mechanical gripper and a using method thereof.The automobile hub coating transfer line carrying mechanical gripper comprises a connecting block, a mounting frame is fixedly connected to the bottom of the connecting block, a hydraulic pipe is fixedly connected to the inner wall of the mounting frame, and before use, the hydraulic pipe is conveyed into a center hole of an automobile hub through a mechanical arm; a power source of an electric telescopic rod is switched on, the electric telescopic rod drives a piston block to slide downwards along the inner wall of a hydraulic pipe through an L-shaped push rod, the downwards-moving piston block forces a plurality of pressed sliding blocks to slide outwards along the inner wall of a sliding through groove, and the outwards-moving pressed sliding blocks drive a hydraulic box and a contact sliding plate to slide outwards through a supporting square rod; the side walls of the multiple contact sliding plates are forced to make contact with the inner wall of the center through hole of the hub, the multiple externally-supported hydraulic boxes and the contact sliding plates form clamping force on the hub, and the phenomenon that indentations appear on a non-dry paint layer on the outer wall of the hub in a conventional external clamping mode is avoided.

The invention relates to spline housing cold heading forming equipment, and relates to the technical field of spline housing machining equipment, the spline housing cold heading forming equipment comprises a workbench, a fixed die holder mounted on the workbench and a movable die holder matched with the fixed die holder, and further comprises a demolding mechanism mounted on the workbench and used for demolding a formed spline housing; the demolding mechanism comprises a driving box installed on the workbench, a lifting assembly installed in the driving box and used for driving the fixed mold base to vertically move, a first threaded rod driven by the lifting assembly to rotate, and an oil storage box installed in the driving box. The driving and conveying assembly is driven by the first threaded rod and sprays lubricating oil stored in the oil storage tank to the fixed mold base and the spline housing; and the overturning assembly is mounted in the driving box and is used for driving the fixed mold base to overturn when the fixed mold base vertically moves. The spline housing demolding device has the effect that indentation and deformation cannot be caused to the surface when the spline housing is demolded.

The invention relates to the technical field of photovoltaic panels, in particular to an automatic cleaning device for a solar photovoltaic panel. According to the technical scheme, the electromagnetic attraction assembly comprises a protective shell, an iron column, a coil, a hydraulic assembly, a magnetic metal block, an annular magnet and a hydraulic telescopic rod, the protective shell is fixedly installed on the side of an upper expansion plate, the iron column is fixedly installed in the protective shell, and the coil electrically connected with a solar panel is wound around the cambered surface of the iron column; a hydraulic assembly is fixedly installed in the protective shell and located at the end of the iron column, and an annular magnet is fixedly installed at the end of the hydraulic assembly. After the surface of the solar panel is covered with dust, the power generation efficiency of the solar panel is reduced, and the current flowing in the coil is reduced, so that the hydraulic telescopic rod extends out to enable the cleaning piece to move on the surface of the solar panel, the dust on the surface of the solar panel is scraped, and the influence of dust covering on power generation of the solar panel is avoided.

The utility model provides a hold-down device for cutting plastic pipes, which belongs to the technical field of pipe fittings and comprises a vertical frame, a pair of hold-down rollers and a distance adjusting piece, the pair of hold-down rollers are rotatably arranged on the vertical frame in the vertical direction, a pipe clamping channel is reserved between the pair of hold-down rollers, and the distance adjusting piece is arranged between the pair of hold-down rollers. The pressing rollers are arranged on the vertical frame, arc-shaped concave faces are arranged on the roller faces of the pressing rollers, flexible sleeves are arranged on the pressing rollers, the arc-shaped concave faces are sleeved with the flexible sleeves, the flexible sleeves are attached to the arc-shaped concave faces, and the distance adjusting pieces are arranged on the vertical frame, connected with the pressing rollers and used for adjusting the distance between the pair of pressing rollers. Due to the fact that the flexible sleeve is soft and rich in elasticity, deep indentations can be effectively prevented from being generated on the contact surface of the plastic pipe in the pipe pressing process, meanwhile, the friction force between the flexible sleeve and the contact surface of the plastic pipe can be increased, and the pipe can be prevented from deviating.

The invention provides an etching solution capable of forming molybdenum trailing with high uniformity for a Mo / Al / Mo / MoOx laminated metal film layer. The etching solution contains phosphoric acid, nitric acid, acetic acid, an additive and ultrapure water. The invention provides a scheme for solving the problem that the molybdenum etching rate is higher than the aluminum etching rate in the transverse etching of laminated metal structures such as molybdenum-aluminum, molybdenum-aluminum-molybdenum and the like, the etching precision is improved, and the product yield is improved.

This invention relates to the field of arch breaker shell welding technology, and specifically discloses an automated welding device for arch breaker shells. A welding component is fixedly connected to the center of the top of the workbench, and positioning components are slidably connected to both sides of the top of the workbench. Placement seats are symmetrically arranged on the top of the workbench, with their bottoms slidably connected to the top of the workbench. One end of a lead screw is rotatably connected to the inner side of the workbench. This automated welding device for arch breaker shells can pre-adjust the extension position of the support frame according to the outer diameter of the flange matching different specifications of the arch breaker cylinder, so as to adapt to the flange outer diameter. When welding the cylinder and flange, the weld area continuously experiences high temperature, resulting in thermal expansion. After cooling, it contracts, which can easily cause the flange to shift axially and radially, leading to misalignment of the circumferential seam and uneven gaps. The support frame closely adheres to the edge of the flange end face, forming a circumferential limiting constraint to prevent movement during welding.

The invention relates to the technical field of membrane attachment, and provides a ceramic membrane coating, bonding and attaching device which comprises a basic rack, a first driving part, a pressing assembly, a second driving part, a vacuum adsorption assembly and a visual assembly, a top rack is fixedly installed on the upper portion of the basic rack through a supporting rack, and the first driving part is installed on the basic rack; a bearing frame is fixedly installed at the output end of the first driving part, a lower press-fit mold is arranged at the top of the bearing frame, a press-fit assembly is installed on the lower press-fit mold, the second driving part is installed on the top rack, a lifting frame is fixedly installed at the output end of the second driving part, and an upper press-fit mold is arranged at the bottom of the lifting frame. A vacuum adsorption assembly is installed at the bottom of the upper pressing mold, and a visual assembly is installed on the top rack and used for solving the technical problems that in the related technology, when multiple layers of diaphragms are pressed, local stress concentration can be formed on the surfaces of the ceramic diaphragms through adsorption holes, then indentations are generated, and the surface quality of finished products is reduced.

The invention discloses a high-weather-resistance ultraviolet infrared barrier EVA optical adhesive film and a preparation method thereof, and the optical adhesive film is prepared from the following raw materials by weight: 100 parts of an ethylene-vinyl acetate copolymer; 1-20 parts of an acrylate monomer; 2-5 parts of a photoinitiator; 0.1-2 parts of an ultraviolet light absorber; 0.1 to 10 parts of a coupling agent; 0.1-2 parts of a light stabilizer; and 10-40 parts of heat insulation slurry. The ultraviolet light absorber can absorb ultraviolet light in a certain interval, the photoinitiator can absorb ultraviolet light in another interval to initiate a curing reaction, through the synergistic effect of the ultraviolet light absorber and the photoinitiator, ultraviolet light in a full wave band can be absorbed, and meanwhile ultraviolet absorption of the photoinitiator is not affected; according to the EVA optical adhesive film, the curing reaction is ensured, the aging problem caused by long-term irradiation of ultraviolet rays can be resisted, inward shrinkage of the EVA optical adhesive film can be prevented by adopting the heat insulation slurry with specific components, so that the EVA optical adhesive film is excellent and lasting in heat insulation performance and good in appearance, and the EVA optical adhesive film can block ultraviolet light and infrared light at the same time, and has a good application prospect. The weather resistance and the heat insulation durability are high.

The invention relates to a welding center and method for platform machining, and belongs to the technical field of welding equipment. The device comprises a rack, a gantry frame is slidably mounted on the upper surface of the rack, an air cylinder is slidably arranged at the bottom of a cross beam of the gantry frame, a mounting plate is fixed to the telescopic end of the air cylinder, and a welding head is mounted on the lower surface of the mounting plate; and fixing cylinders are further included, the two fixing cylinders are fixed to the left side and the right side of the lower surface of the mounting plate, and moving plates are slidably connected to the opposite faces of the two supporting vertical plates. According to the device, a single honeycomb platform is automatically clamped through a motor and a wedge block, a guide plate is matched for abutting, an elastic floating roller is matched for pressing, positioning is stable, a workpiece is not damaged, full-area cleaning and negative-pressure synchronous impurity removal are adopted before welding, welding defects are effectively avoided, initial pre-stretching is conducted in the welding process, and the welding efficiency is improved. And then the progressive secondary stretching is realized along with the linkage of the welding machine head, the stress is dynamically eliminated, the deformation is inhibited, and the flatness and the welding precision are greatly improved.

The present application provides a machining tool path control method, including: obtaining a 3D model; extracting a curve of the final profile in the 3D model as a driving curve; obtaining the feed direction of the tool as a guide curve; determining the initial path curve of the tool according to the driving curve, the guide curve, and the initial profile; generating a universal direction with the driving curve as a generatrix point; obtaining a unique direction set and a feed amount selected in the universal direction; determining the machining end curve of the tool; using the machining end curve as a new initial path curve, repeating the steps of determining the machining end curve of the tool according to the initial path curve, the unique direction set, and the feed amount until the driving curve coincides with the machining end curve; combining all initial path curves into a continuous tool path curve, and controlling the tool to move according to the tool path curve. The present application can improve the surface finish of the special-shaped surface after machining.

The utility model relates to a kind of roll bending machine plate material feeding scratch-proof surface treatment device, the utility model effectively solves that plate bottom is easily scratched, the granular matter on the surface of plate is easily formed dent when rolling, plate cannot be accurately aligned with roll bending machine entrance, is prone to the problem of indentation.The roll bending machine plate material feeding scratch-proof surface treatment device can simultaneously carry out physical cleaning to the upper and lower surfaces of plate by the upper and lower symmetrical active cleaning mechanism, effectively remove the metal scraps and dust and other impurities adsorbed on the surface, simultaneously cooperate with dust extraction mechanism can suction impurities cleaned in real time, significantly reduce the scratch or indentation risk caused by impurities pressed into by plate;Second electric push rod can coarsely adjust the height of flexible support module, flexible support module can fine tune itself, ensure that plate is smoothly fed, and flexible support module can disperse concentrated pressure into uniform surface support, prevent indentation caused by uneven support, more conducive to using when roll bending processing is carried out to plate.

The utility model discloses a cloth supporting and spreading device relates to cloth winding device. Including winding mechanism and supporting and spreading mechanism, winding mechanism rotatory connection is in the frame, its characterized in that: supporting and spreading mechanism is located the front of winding mechanism, the cloth is wound on winding mechanism after supporting and spreading behind supporting and spreading mechanism, supporting and spreading mechanism includes the suction assembly and a pair of unfolding assembly of being located on the frame, the unfolding assembly reciprocating movement along the width direction of cloth, every unfolding assembly all is equipped with a suction assembly, and the suction assembly moves with the unfolding assembly synchronization, two unfolding assembly alternate movement and the corresponding suction assembly stops suction cloth when unfolding assembly reset. This application has avoided the appearance of cloth surface indentation as far as possible, and because the whole flattening process is through the mode of negative pressure suction, the advantage that the surface coating of cloth is more destroyed.

The utility model provides an adjustable glasses nose pad, which relates to the technical field of glasses, and is characterized in that the adjustable glasses nose pad comprises a nose pad fixing frame, a rotating piece and a nose pad body, the rotating piece is rotatably arranged on the nose pad fixing frame, the nose pad body is fixedly arranged on the rotating piece, and the nose pad body is fixedly arranged on the rotating piece. And clamping groove and clamping block structures which are clamped with each other are arranged on the nose pad fixing frame and the rotating piece. Through the multi-gear clamping groove and clamping block structure between the rotating piece and the nose pad fixing frame, stepped adjustment of the angle of the nose pad is achieved. The clamping blocks can be embedded into the clamping grooves in different positions, so that the silica gel nose pad body forms multi-angle support, the individual requirements of different nose bridge heights and widths are met, and the wearing adaptability is remarkably improved.

The utility model discloses a textile fabric wetting device for spinning, which relates to the technical field of textile machinery, and comprises a shell and a textile fabric body, and further comprises an upper roller, the upper roller is movably sleeved on the surface of a rotating shaft fixed on the inner wall of the shell, a lower roller is movably sleeved on the surface of a circular shaft fixed on the inner wall of the shell, and the lower roller is sleeved on the surface of the circular shaft fixed on the inner wall of the shell. The upper roller and the lower roller are movably connected with the surface of the textile fabric body; and the heating water tank is arranged at the top of the shell and used for heating water. Through the arrangement of the upper roller, the lower rollers and the water outlet roller, a textile fabric body passes through the positions of the upper roller and the lower rollers, the two lower rollers prevent the textile fabric body from making contact with the water outlet roller, hot water flows out of the water outlet holes in the bottom of the water outlet roller to wet the textile fabric, and the textile fabric body can make full contact with the hot water; the textile fabric body is wetted more comprehensively, and indentations are prevented from being formed on the surface of the textile fabric body.

The application discloses a permanent magnet electric drive aluminum strip tension leveling machine process parameter optimization method and system, and belongs to the technical field of metal material finishing. The method comprises the following steps: system initialization is performed, and a coupling mathematical model between process parameters and electromagnetic drive control variables is established; based on the established model, a hierarchical strategy including process parameter pre-selection, drive parameter multi-objective optimization and online fine adjustment is adopted, and an optimal process parameter set is dynamically solved; heat compensation is performed on the current instruction output by the optimization according to the real-time temperature of the permanent magnet motor, so as to offset the torque attenuation caused by temperature rise; and case data of each successful tension leveling is stored in a knowledge base, so that online self-learning and inheritance of experience are realized. The application solves the problems of straightening quality fluctuation, high energy consumption and short service life of components caused by mismatching of the permanent magnet direct drive system and traditional process parameters, and significantly improves the elongation control precision, surface quality and energy efficiency.

The present application relates to the technical field of machining, especially to an oil cylinder body positioning and locking tool clamp, comprising a support base, a limiting unit fixedly installed on the support base, and a clamping unit slidably installed on the limiting unit and slidably connected with the support base. First, the oil cylinder is placed on the limiting assembly, the clamping assembly and the extrusion assembly on both sides are driven to move towards each other, the tail end of the oil cylinder is clamped into the clamping assembly, and the output end is inserted into the extrusion assembly; the driving part in the clamping assembly drives the clamping part to segmentally hold the tail part of the oil cylinder, cooperates with the limiting assembly to push, and in combination with the multi-stage segmented clamping of the extrusion assembly, the reliable positioning of the workpiece can be realized. After clamping is completed, the clamping assembly can drive the oil cylinder to rotate, the posture of the workpiece can be flexibly adjusted, multiple processing procedures can be adapted, the defect of poor universality of traditional positioning tools is avoided, the clamping of oil cylinders of multiple specifications and special shapes can be compatible, special clamps do not need to be frequently replaced, the replacement time is shortened, and the processing efficiency is improved.

The utility model relates to the technical field of mobile power supplies, in particular to a mobile power supply with detachable loudspeakers, which comprises a power supply main body and two loudspeakers, the loudspeakers are symmetrically arranged on two sides of the power supply main body along the central axis of the power supply main body, and a connecting part is fixedly arranged on the power supply main body; a charging part corresponding to a mobile phone charging port and a charging port are fixedly arranged on the connecting part, and two sides of the power supply main body are connected with the sound equipment through connecting structures; the power supply main body is fixedly provided with a convex part, the sound equipment is fixedly provided with a positioning ring corresponding to the convex part, and the sound equipment is magnetically connected with the power supply main body through two magnets, so that the difficulty of taking out the sound equipment is reduced while the connection tightness is ensured; when charging is not carried out, the charging part can be partially retracted into the connecting part to be protected, the position of the charging part is limited by arranging the positioning structure, and the charging part is prevented from being separated from the connecting part in a staggered mode.

The invention relates to the technical field of battery heat insulation films, in particular to a hot-pressing vulcanization and film covering all-in-one machine for battery heat insulation films, which comprises a base, a processing box is fixedly mounted on the base, a silica gel frame is placed in the processing box, conveying mechanisms are symmetrically arranged on the inner wall of the processing box, and a film covering mechanism is arranged in the processing box. A pre-pressing mechanism and a vulcanizing mechanism are arranged on the outer side of the processing box, and the upper end of the processing box communicates with a rectangular material pipe used for feeding aerogel pieces. The film laminating mechanism is arranged, a horizontal sliding rail and a driving lead screw are used for driving a sliding platform and a silica gel frame to move synchronously, a rectangular pressing head is driven by an electric telescopic rod to complete jacking, cutting and hot-pressing attaching, the silica gel frame does not need to be stopped in the whole process, it can be guaranteed that a film and a window are accurately aligned, and the efficiency bottleneck of a traditional attaching stopping technology is avoided; in addition, cutting and attaching are integrated, the equipment structure is effectively simplified, and the production continuity and the automation degree are improved.

The invention discloses a chained electromagnetic iron oxide scale adsorption device and a chained electromagnetic iron oxide scale adsorption method. The device comprises two electromagnet chains which are mounted on a stepped rubber wheel, and the rubber wheel is driven by a motor to rotate; each electromagnet chain is composed of a wear-resistant rubber belt, an electrified electric brush and a plurality of electromagnets. When the electromagnet chain moves, the upper half circle of electromagnet makes contact with the electrified electric brush to generate electromagnetism, and oxide scales on the surface of strip steel are attracted. And when rotating to the lower half circle, the electromagnet is not in contact with the electric brush, so that the electromagnet is powered off and demagnetized, the oxide scale automatically falls off, and finally, the oxide scale is recovered by the collecting device. The device has the beneficial effects that scales on the upper and lower surfaces of strip steel are effectively removed, and the steel surface quality is improved; dust pollution is reduced; and the scale can be continuously adsorbed and collected, so that the cleaning efficiency is improved.

The utility model relates to the technical field of linear cutting, in particular to a bidirectional clamping and fixing device for linear cutting. The top of the mounting plate is fixed to a rack, the clamping parts are arranged on the two sides of the mounting plate in a mirror image mode with the central axis of the mounting plate as the reference, each clamping part comprises an upper supporting rod, a middle supporting rod and a lower supporting rod, and the two ends of the upper supporting rod, the two ends of the middle supporting rod and the two ends of the lower supporting rod are movably installed on corner-shaped supporting arms through shafts. The upper ends of the supporting arms are movably installed on the upper supporting rods, the corner points of the supporting arms are movably installed on the middle supporting rods, the lower ends of the supporting arms are movably installed on the lower supporting rods, and pressing plates used for clamping are arranged on the inner sides of the lower supporting rods. An installation plate is adopted as a base body, the top of the installation plate is fixed to a rack, clamping parts are symmetrically arranged on the two sides of the central axis of the bottom of the installation plate, each clamping part is composed of an upper supporting rod, a middle supporting rod and a lower supporting rod, and the two ends of the upper supporting rod, the middle supporting rod and the lower supporting rod are movably connected with corner-shaped supporting arms through shafts to form a four-connecting-rod linkage mechanism, and bidirectional symmetrical clamping is achieved.

This utility model provides a cable fixing structure for the handover test of a photovoltaic power station transformer substation, belonging to the technical field of cable fixing structures. The cable fixing structure includes: a wedge-shaped metal ring assembly divided into at least three circumferential segments, each segment having a spiral groove on its outer surface; a high-friction flexible pad tightly fitted to the inner circumferential surface of each segment; and an integral elastic steel ring surrounding the outer side of the metal ring assembly, the inner circumferential surface of which has a protruding ridge that engages with the spiral groove. When the elastic steel ring rotates relative to the metal ring assembly, the protruding ridge slides along the spiral groove, driving each wedge-shaped metal ring segment to synchronously contract radially and synchronously generate axial displacement, thus forming a self-tensioning clamp. This solves the problem of loose cable joints and uneven stress during the handover test caused by the inability of traditional fixing structures to adaptively clamp according to changes in cable tension.

The utility model relates to massage product technical field, concretely is a kind of neck protection instrument. Including shoulder strap main part, shoulder massage device and hot compress device;Shoulder strap main part includes outer side band and skin-friendly band, and the outer periphery of outer side band is provided with convex rib, and the inside of convex rib is surrounded and has installation cavity;Skin-friendly band is detachably installed in the inside of convex rib;The both ends of shoulder strap main part are respectively installed with first magic tape hair surface band and first magic tape thorn surface band;Shoulder massage device is movably arranged in the inside of installation cavity, and shoulder massage device includes massage head mounting and the multiple electric massage head installed on massage head mounting;The both ends of massage head mounting are connected with pull rope, and two perforations for the pull rope of two sides to be penetrated are set up on skin-friendly band;Hot compress device is installed on skin-friendly band.The utility model has the advantages of good wearing comfort, and massage range is extensive.

The utility model discloses an anti-impact spring ejector pin which comprises a pipe fitting, the lower end of the pipe fitting is provided with a connecting part, the connecting part is used for being electrically connected with a wire, and the outer side wall of the pipe fitting is provided with a limiting lap joint piece; a first step is arranged on the outer side wall of the movable ejector pin, one end of the movable ejector pin is installed in the pipe fitting in a sliding mode, the limiting lap joint piece is connected with the first step in a clamped mode, and the limiting lap joint piece and the first step limit the extending stroke of the movable ejector pin; the limiting lap joint sheet is in lap joint with the outer side wall of the movable ejector pin; a reset spring is arranged between the movable ejector pin and the pipe fitting, the lower end of the reset spring is connected with the pipe fitting, and the upper end of the reset spring is connected with the movable ejector pin. The shock resistance of the spring ejector pin is improved, and the reliability of electric connection between the pipe fitting and the movable ejector pin is guaranteed.

The utility model relates to the technical field of lip balm tube processing equipment, in particular to a thread screwing device for lip balm tube production, which comprises a conveying belt and a cap screwing device assembled above the conveying belt, the conveying belt is respectively provided with a feeding end and a discharging end in the X-axis direction, the cap screwing device is arranged between the feeding end and the discharging end, and the feeding end and the discharging end are arranged on the conveying belt. The cap screwing device comprises a first fixing mechanism used for clamping the bottom of a pipe body and a second fixing mechanism used for abutting against and rotating a cap body, and the first fixing mechanism and the second fixing mechanism are arranged on the left side and the right side of the conveying belt in the Z-axis direction correspondingly. The first fixing mechanism and the second fixing mechanism are arranged on the left side and the right side of the advancing direction of the conveying belt correspondingly, the bottoms of a cover body and a pipe body are limited, cap screwing operation is carried out, buffering force is provided through the telescopic design of an outer fixing piece and a spring in the cap screwing process, clamping stability is ensured, and the clamping efficiency is improved. And the risk of tube body damage caused by improper clamping force adjustment is reduced, and the machining quality of the lip balm tube screw cap is improved.

The utility model relates to EMU slide valve detection technical field, this EMU group is with slide valve test mechanism, including test bench body, the top of test bench body is provided with test chassis, is provided with the fixed subassembly of pressing down on test chassis, is provided with one way locking assembly on the fixed subassembly of pressing down, the fixed subassembly of placing of pressing down has slide valve body, the utility model, by one way locking assembly cooperation fixed subassembly of pressing down formed the one way rotation type clamping fixed structure to fix the slide valve, before testing through the fixed slide valve can realize to the slide valve, the antiskid pad on the whole fixed clamping plate always keeps surface contact with the slide valve in the whole fixing process, avoids the slide valve on the indentation while guaranteeing the clamping force degree, disconnects the gas path and electric connection joint after testing, pulls the locking block and separates the lateral clamping slot, can take down slide valve body through the support spring release elastic potential energy, one step operation can release the fixing of slide valve body, improves the test efficiency.

The invention belongs to the technical field of mechanical detection, and particularly relates to an overturning force detection device for an automobile sun shield. The invention provides the automobile sun shield overturning force detection device with safety protection and comprehensive detection functions. The device comprises a moving seat, a longitudinal turnover mechanism, a clamping protection assembly and the like. A transverse turnover mechanism and a longitudinal turnover mechanism which are used for detecting the turnover strength of the sun shield are arranged on the moving seat, and clamping protection assemblies used for clamping and fixing the sun shield are arranged on the transverse turnover mechanism and the longitudinal turnover mechanism. By means of the transverse turnover mechanism and the longitudinal turnover mechanism, manual work can be conveniently simulated to conduct transverse and longitudinal turnover on the sun shield, and the force value of each time of turnover is recorded in time; and through the dual protection effects of a protection sleeve and an elastic rubber strip on the clamping protection assembly, the purpose of buffering protection is achieved in the overturning force detection process of the sun shield, and abrasion or indentation on the surface of the sun shield is avoided.

This invention discloses a beam formwork installation and reinforcement device for confined spaces, comprising a disc-lock frame. An aluminum alloy beam bottom horizontal plate is mounted on top of the disc-lock frame, and a beam bottom support formwork is installed above it. A first timber beam is installed between the two. The inner side of the formwork is a concrete beam with integrated columns. Irregularly shaped metal rods with steel plates and clearance grooves are installed on the outer sides of the formwork on both sides of the columns. These irregularly shaped metal rods are connected by a connecting assembly. A second timber beam is installed between the two columns, with both ends contacting small channel steel. L-shaped fixing clips are fixed to the small channel steel. The connecting assembly replaces the original first nut with an end assembly, which includes a magnetic end plate, a square-section threaded sleeve, and a limiting nut. This invention adapts to confined space layouts through a modular aluminum alloy beam bottom horizontal plate and achieves precise reinforcement of the beam formwork while being suitable for operation in confined spaces using irregularly shaped metal rods with clearance grooves and a connecting assembly containing end assemblies.