309results about How to "Avoid dents" patented technology

The invention provides a four-way pipe fitting multi-direction charging hydraulic forming method and device, and relates to the technical field of pipe fitting forming. The four-way pipe fitting multi-direction charging hydraulic forming method comprises the steps that the diameter of an initial pipe blank and the size of a variable-diameter area of a variable-diameter pipe blank are determined according to the size of a target pipe; internal pressure p1, axial rolling reduction delta 1 and supporting internal pressure p2 are calculated; determining an initial tube blank length; preparing an initial pipe blank; the initial pipe blank is put into an axial charging hydraulic pressing mold for axial pressing, and a variable-diameter pipe blank is obtained; the variable-diameter pipe blank is put into a circumferential charging hydraulic pressing mold for circumferential pressing, and a double-protrusion pipe blank is obtained; and the ends of the protruding parts of the double-protruding pipe blank are removed, and the target pipe is obtained. The forming load is remarkably reduced, the problems that the high-pressure forming pressure in the four-way pipe fitting is high, material supplementing in a middle deformation area is difficult, and the fracture defect is likely to be generated are effectively solved, the situation that branch pipes and a connecting area are thinned and fractured is avoided, and the obtained four-way pipe fitting is uniform in wall thickness, complete in structure and excellent in performance.

The invention relates to the technical field of ship berthing, and discloses a ship unberthing and berthing device and a using method thereof.The ship unberthing and berthing device comprises a pressed mechanism, the pressed mechanism further comprises a mounting plate, a fixing support is fixedly connected to the side wall of the mounting plate, before use, the whole device is mounted on the outer wall of a ship, and a pressed sliding frame is influenced by pushing of a spring telescopic rod and is fixed to the outer wall of the ship; the angle between the rotating frame and the mounting plate is reduced along with the reduction of the distance between the port and the ship, and the force applied to the rotating wheel by the rotating frame is continuously increased along with the reduction of the angle of the rotating frame, so that the rotating wheel is forced to slide along the outer wall of the rotating frame; the rotating wheel drives the pressed sliding frame to slide along the inner wall of the mounting plate through the rotating column, in the process, the pressed sliding frame is pushed by the spring telescopic rod to force the rotating frame to expand outwards, the expanding force offsets the transverse force of the feet for the ship to get close to the port, and the situation that friction is too large, and the berthing efficiency of the ship is affected is avoided.

The invention belongs to the technical field of soil layer drilling, and particularly relates to a construction drilling device and a supporting structure construction method.The device comprises a control mechanism, a bearing mechanism, a drilling mechanism, a dustproof mechanism and a backflow mechanism; the drilling mechanism comprises a drilling machine and a connector; the connector is used for connecting a drill bit and an output shaft of the drilling machine; the bearing mechanism comprises a bearing plate and a mounting plate for mounting a drilling machine, and the mounting plate is movably arranged on the side wall of the bearing plate; the movement of the bearing plate and the mounting plate is controlled by a control mechanism; the dustproof mechanism comprises a water curtain nozzle and a cooling nozzle; the water curtain nozzle and the cooling nozzle are annularly and uniformly arranged on the mounting plate along the axis of the connector; nozzles of the water curtain sprayers are obliquely arranged; through the cooperation of the structure, a cylindrical water curtain can be formed when the device drills a soil layer, the generated water curtain makes contact with a rock wall in real time, and dust is prevented from flying out as much as possible. By means of the device, efficient construction is conducted on a soil layer or a rock wall, and installation of a follow-up supporting structure is facilitated.

The invention discloses a forming process and forming equipment of a disposable dinner plate. The forming process comprises the following steps: S01, material preparation: drying a sheet for 1-2 hours in a dehumidification environment at 125-130 DEG C; s02, preheating is conducted, specifically, the dried sheet is flatly laid and subjected to double-face preheating, and then the sheet is conveyed to heating equipment; s03, heating is conducted, specifically, the preheated sheet is heated and softened through double-face hot air and conveyed to a mold; and S04, shaping is conducted, specifically, the bearing mold is preheated in advance, and after preheating, the bearing mold and the gas conveying mold are closed to form a closed space. According to the plastic forming equipment, a sheet is preheated to reduce humidity, so that bubbles generated by water evaporation in the heating process are reduced, the situation that when fillets are attached and separated, tearing occurs due to the fact that the bubbles are weak is avoided, the sheet is softened through double-face hot air, the fillets are attached, and sinking is avoided.

The invention relates to the technical field of aero-engine welding, in particular to a welding device and method for a thick plate installation supporting point assembly. The welding device comprises a front face device and a back face device, and during front face welding and back face welding, when the flange edge is placed on the positioning assembly, the flange edge is in butt joint with a pre-placed to-be-welded supporting point welding seam to form an X groove. An X groove is subjected to pre-welding cleaning, positioned welding and backing welding through manual argon arc welding and wire filling through automatic argon arc welding, and the complete welding process is achieved. Compared with manual argon arc welding, the reasonable machining method and suitable welding parameters are adopted, the appearance quality of welding seams of automatic argon arc welding is remarkably improved, and the welding deformation control effect on the titanium alloy X-shaped groove assembly is good.

The utility model discloses an installation positioning device for building electromechanical intelligent construction, which comprises two clamping plates, synchronous seats are fixedly installed on the opposite sides of the two clamping plates, air cavities are formed in the synchronous seats, uniformly distributed movable grooves are formed in the outer sides of the synchronous seats, and the air cavities are communicated with the air cavities. The interior of the movable groove communicates with the interior of the air cavity. According to the utility model, the contact area with the building electromechanical equipment can be increased through the cooperation of a plurality of groups of limiting rods connected by springs on the synchronous seat and the suction cups, concave or convex parts on the surface of the electromechanical equipment are avoided, and the suction cups generate suction force to adsorb the building electromechanical equipment through vacuum subsequently, so that the stability is further improved; and meanwhile, the adjustable bearing plate in the auxiliary assembly is used for supporting the bottom of the electromechanical equipment, a good supporting effect is achieved, the adjustable bearing plate can be flexibly used, and the compatibility of the mounting and positioning device is improved.

The utility model provides an organ type protective structure which comprises a first connecting plate and a second connecting plate. The back face of the first connecting plate is fixedly connected with a flexible protective cover, the other end of the flexible protective cover is fixedly connected with a second connecting plate, the second connecting plate and the flexible protective cover are the same in structure, and a first sliding groove is formed in the front face of the first connecting plate in a penetrating mode. According to the organ type protection structure, the flexible protection cover can be supported through the supporting effect of the sliding frame so that the middle of the flexible protection cover can be prevented from being sunken, the sliding frame can be limited through the sliding rod, and meanwhile the sliding frame can slide conveniently when the flexible protection cover shrinks; the position, located on the peripheral side face of the lead screw, of the side plate can be adjusted by rotating the nut, so that the distance between the first connecting plate and the second connecting plate can be adjusted, when the distance between the first connecting plate and the second connecting plate is shortened, the flexible protective cover can be tightened through the pulling force of the elastic rope, and therefore the flexible protective cover can be shrunk conveniently.

The invention discloses a method for reducing basement peripheral pipe piles to resist peripheral soil settlement, and relates to the technical field of buildings, and the method comprises a peripheral soil settlement reducing and resisting mechanism and waste pipe piles; the mechanism for reducing and resisting surrounding soil settlement is composed of a prefabricated concrete pipe, a prefabricated reinforced concrete plate and foundation sand. The ground is recovered by finding piles, filling sand, pressing in the prefabricated concrete pipe, backfilling earthwork to stabilize the prefabricated concrete pipe, plastering, covering the prefabricated concrete pipe with the prefabricated reinforced concrete plate and finally backfilling the earthwork to the ground surface; a mechanism for reducing and resisting surrounding soil settlement is arranged, so that the settlement speed of the ground above the waste pipe pile can be effectively controlled, the settlement speed of the ground above the waste pipe pile is kept consistent with that of the surrounding ground, and ground cracking caused by settlement difference is avoided; the problem that the ground of municipal and garden supporting facilities is prone to damage due to the fact that the settling velocity of the ground above foundation pipe piles of waste tower cranes, people and goods elevators and other structures is inconsistent with that of the surrounding ground is solved.

The invention discloses copper bar calendaring auxiliary equipment for non-ferrous metal processing, and relates to the technical field of copper bar calendaring auxiliary equipment.The copper bar calendaring auxiliary equipment comprises a supporting base, an aligning assembly is used, a driving shaft drives a conveying roller to rotate, and a sliding frame drives an aligning block to enable an aligning roller to be close to a copper bar; the alignment roller extrudes the copper bar to enable the copper bar to be parallel to the alignment block, the alignment roller stops moving due to blocking of the copper bar, the alignment roller is driven to rotate when the copper bar is conveyed, the situation that the copper bar is clamped by the alignment roller to affect conveying of the copper bar and reciprocating motion of the alignment roller is avoided, and the effect of automatically correcting the angle of the copper bar is achieved. Compared with a traditional guide device, the guide device has the advantages that the alignment roller can automatically adapt to the width of the copper bar to correct the direction of the copper bar, so that the copper bar is prevented from inclining during extrusion due to the fact that the copper bar enters the space between the lower roller and the upper roller in the inclined direction, and the problem of unqualified inclination of the copper bar formed by rolling is solved; and therefore, the device has a correction function on copper bars with different widths.

The utility model discloses a photovoltaic junction box, which comprises a box body and a cover plate clamped on the box body, a current-conducting plate is arranged in the box body, a diode is arranged on the current-conducting plate, a guide groove used for placing a bus bar is formed at the bottom of the box body, the guide groove is provided with a guide section which is folded upwards, and the guide section is provided with a guide hole. And the guide section extends upwards to form a supporting part for supporting the conductive plate.

The utility model is suitable for the technical field of wafer packaging, and provides an anti-sinking type wafer packaging box which comprises a box body, a box cover is arranged at the top end of the box body, connecting columns are fixed to the two sides of the bottom end of the box cover, clamping grooves are formed in the two sides of the interior of the box body, reserved grooves are formed in the clamping blocks, and the reserved grooves are communicated with the box body. A compression-resistant piece is fixed to the outer side wall of the reserved groove, and a reinforcing piece is fixed to the outer side wall of the compression-resistant piece. Through the arrangement of the protection structure, a plurality of reserved grooves are fixed to one sides of the compression-resistant pieces at equal intervals, the reserved grooves are correspondingly limited in clamping blocks through the clamping structures of the clamping blocks and the reserved grooves, and the two sets of compression-resistant pieces can be symmetrically limited to the outer side wall of the box body; the reinforcing pieces can be symmetrically limited on the outer side wall of the box body, and the outer side wall of the box body is protected through the reinforcing pieces and the compression-resistant pieces, so that the packaging box is firmer during use, and recesses are avoided.

The utility model discloses a planetary gear transmission which comprises a transmission shell, a protective shell is arranged on the outer surface of the transmission shell in a wrapping mode, a gap is formed between the inner surface of the protective shell and the outer surface of the transmission shell to form a sealed cavity, and a flow guide assembly is arranged in the cavity. The flow guide assembly abuts against the position between the transmission shell and the inner surface of the protective shell, the portion, located at the bottom of the transmission shell, of the protective shell is connected with a base, a cooling cavity is formed in the base, a water supply pipe is communicated with the interior of one end of the cooling cavity and the sealing cavity, and a water return pipe is communicated with the interior of the other end of the cooling cavity and the sealing cavity. A water pump is mounted at the tail end of the water supply pipe in the cooling cavity; the water pump pumps the cooling liquid into the cavity formed between the protective shell and the transmission shell through the water supply pipe, heat exchange is carried out to take away heat generated in the operation process of the transmission, the cooling liquid is evenly dispersed in the cavity through the flow guide assembly, and heat dissipation and cooling are carried out on the transmission more comprehensively.

The utility model discloses a punching device for producing a motor shell, which belongs to the technical field of motor production and comprises a U-shaped box frame, a motor shell main body is arranged in the U-shaped box frame, and clamping components are arranged on two sides of the motor shell main body. A movable supporting block is arranged in the motor shell body, a movable vertical drill bit is arranged on the surface of the top of the motor shell body, and the positions of the supporting block and the vertical drill bit can be adjusted through the moving mechanism and the clamping assembly so that the vertical drill bit can punch the outer side of the motor shell body. According to the motor shell punching device, a motor shell body can be clamped and can rotate, the punching angle of the motor shell body can be adjusted, the interior of the punching position is supported through the arrangement of a vertical drill bit, and the sinking phenomenon of the surface of a shell is effectively prevented.

The application relates to a bag-in-bag-out filtering device, which relates to the technical field of biological safety and comprises the following: a ventilation duct is arranged in a box body; an air inlet and an air outlet are arranged on the box body and communicate with the ventilation duct; one or more filters are movably arranged in the ventilation duct; an opening is arranged on the box body and communicates with the ventilation duct; a sealing door is detachably arranged on the opening; a detection piece is arranged on one side of the box body close to the sealing door; and a frame body is arranged in the box body and abuts against the filter; the box body comprises a main body, an air inlet shell, an air outlet shell and a cover plate, and the ventilation duct is formed between the main body and the cover plate; the frame body and the main body are integrally bent and formed, one end of the frame body is embedded in the main body, and the other end of the frame body is bent and connected with the end of the main body. Compared with a traditional filtering box, the filtering device is integrally formed, welding leakage is avoided, the filtering device is not easy to deform, good sealing performance and pressure bearing strength are maintained, and the cost is reduced.

The present invention discloses a valve expansion device with a reinforcement and a valve expansion system. The valve expansion device with a reinforcement includes a stent and at least one reinforcement. The stent includes a proximal end and a distal end that are arranged opposite to each other in the axial direction, and at least two expansion arms connected between the proximal end and the distal end. Each expansion arm can be expanded or compressed along the radial direction of the stent, and at least one expansion arm is provided with a cutting portion on the side away from the other expansion arms. The reinforcement is fixedly connected between two adjacent expansion arms, and the reinforcement and the expansion arm are synchronously expanded or compressed along the radial direction of the stent. The valve expansion device with a reinforcement provided in an embodiment of the present invention connects the expansion arms in pairs by arranging reinforcements so that the expansion arms are indirectly fixedly connected together, which can prevent the expansion arms from being deformed by external forces and concave radially inward during radial expansion, so that the expansion arms can continue to expand outward to ensure the expansion effect.

The utility model relates to an air conditioner indoor unit and an air conditioner, and belongs to the technical field of air treatment equipment. The utility model provides an air conditioner indoor unit and an air conditioner. The air conditioner indoor unit comprises a front panel, a rear panel and a handle assembly. Mounting grooves are formed in the side walls of the two opposite sides of the front panel, and the handle assembly is rotationally arranged in the mounting grooves so that the handle assembly can be switched between the storage position and the operation position; the handle assembly is configured in the mode that when the handle assembly rotates to the storage position, the handle assembly is completely located in the installation groove, when the handle assembly rotates to the operation position, at least part of the handle assembly is located outside the installation groove, and the handle assembly located outside the installation groove is grabbed to drive the front panel to move so that the front panel can be connected with the rear panel in a clamped mode. An acting point is provided for moving the front panel through the handle assembly, the front panel is prevented from sinking, and the assembly difficulty is reduced.

The utility model discloses a heat preservation air pipe which comprises a pipe body, a heat preservation mechanism is arranged on the pipe body, the heat preservation mechanism comprises an inserting plate and a fixing base, and a first heat preservation shell is inserted into the inserting plate. The heat preservation shell containing the heat preservation cotton is arranged on the outer wall of the pipe body, the heat preservation effect of the air pipe can be improved, due to the fact that the heat preservation cotton is arranged in the first heat preservation shell, the aging time of heat preservation materials can be shortened, and when the first heat preservation shell needs to be detached, a worker pushes the grip to enable the clamping rod to be separated from the groove in the clamping base, and the heat preservation effect is improved. Then the clamping rod is turned over with the connecting base as the axis, the clamping rod is made to be away from the clamping base, at the moment, the first heat preservation shell is not limited by the clamping rod and can be taken down from the pipe body, the first heat preservation shell can be rapidly detached and replaced, the air pipe can be protected through the first heat preservation shell, and the problem that the pipe body is sunken due to collision can be solved; and the service life of the air pipe is further prolonged.

The utility model discloses a special composite ejection device for a forging press, which comprises a forging press body, a supporting mechanism arranged in the forging press body, a placing mechanism arranged above the supporting mechanism, an ejection mechanism arranged below the supporting mechanism, the supporting mechanism comprises a first supporting plate, a first groove is arranged on the surface of the first supporting plate, and a second groove is arranged on the surface of the first supporting plate. The placing mechanism comprises two sets of placing plates which are symmetrically arranged, the two outer side faces, forming an included angle, of each placing plate are each provided with a second groove, the ejection mechanism comprises a cross ejection plate, and the shape of the cross ejection plate corresponds to that of the first cross through groove. According to the forging and pressing device, a section of forging and pressing buffering distance is provided for the first supporting plate through the first spring, a workpiece can bear more uniform pressure, and therefore the better forming effect is achieved, in addition, the surface of the workpiece can be smoother through descending of the first supporting plate, and the defects of pits or protrusions and the like are avoided.

The utility model discloses a high-strength thermal insulation pipe reinforcing device, which relates to the technical field of thermal insulation pipes and comprises an inner pipe, a thermal insulation layer is arranged outside the inner pipe, an outer pipe is sleeved on the surface of the thermal insulation layer in a sliding manner, one end of the inner pipe is fixedly sleeved with a fixing ring, and the other end of the inner pipe is sleeved with an outer pipe. An inserting rod is fixedly mounted on the side, close to the outer pipe, of the fixing ring, an inserting hole matched with the inserting rod is formed in the side, close to the fixing ring, of the outer pipe, two fixing blocks are fixedly mounted on the surface of the inner pipe, threaded rods are rotationally connected into the two fixing blocks, and the supporting plate is pushed to move and enters the groove; the outer pipe can be conveniently supported, the phenomenon that after the outer pipe is externally extruded, the outer pipe is sunken is prevented, the strength of the heat preservation pipe is improved, damage is prevented, the bearing capacity of the heat preservation pipe is improved to the maximum extent, meanwhile, the outer pipe is conveniently fixed, the phenomenon that the outer pipe slides is prevented, and convenience of installation of the heat preservation pipe is guaranteed.

The utility model relates to the technical field of detection tools, in particular to a box body detection tool. The box body detection tool comprises a workbench and a positioning frame. The positioning frame is arranged on the workbench; a positioning plate is arranged on the inner side of one border of the positioning frame; the positioning frame and the positioning plate are both provided with a plurality of positioning holes, and the first go-no go gauges can be inserted into the positioning holes. The plurality of supporting columns are arranged in the positioning frame; a plurality of first quick clamps are arranged on the outer side of the positioning frame, and the first quick clamps can press the box body on the positioning frame; the detection beam is arranged on the upper side of the positioning frame in an opening and closing manner, and the second go-no go gauge can penetrate through a gap between the detection beam and the box body. The box body is placed on the positioning frame, and the first rapid clamp tightly presses the box body on the positioning frame. The first go-no go gauge is inserted into each positioning hole to detect whether each aperture is qualified. The second go-no go gauge moves back and forth in the gap between the detection beam and the box body to detect whether the top of the box body is flat. The detection tool not only can detect each aperture, but also can detect the flatness, and the detection efficiency is higher.

The utility model relates to a window cleaning machine plane walking mechanism which comprises a window cleaning hanging basket, a plurality of hanging rings are evenly and fixedly connected to the upper surface of the window cleaning hanging basket, mounting grooves are symmetrically formed in one side of the window cleaning hanging basket, conveying assemblies are arranged in the symmetrically-formed mounting grooves correspondingly, and a plurality of mounting heads are evenly and fixedly connected to the outer walls of the conveying assemblies; a suction cup is fixedly connected to the side, away from the conveying assembly, of the mounting head, a mini air pump is fixedly connected into the mounting head, and one end of the mini air pump communicates with the suction cup. According to the scheme, when the window cleaning hanging basket is used, a cleaner stands in the window cleaning hanging basket to clean building outer wall glass, a mini air pump is started to suck air to control suction cups to be adsorbed to the glass, the stability of the window cleaning hanging basket can be enhanced through the suction cups in windy weather, and therefore the situation that the window cleaning hanging basket shakes can be avoided as much as possible; and the safety risk of cleaning personnel during operation can be reduced, so that the device is more beneficial to actual use.

The invention relates to the technical field of heat preservation pipes, in particular to a polyurethane heat preservation pipe heat preservation layer manufacturing process which comprises the following steps that S1, a conveying pipe penetrates through a protection pipe, the two ends of the protection pipe are connected with the conveying pipe through a support, and the protection pipe and the two ends of the conveying pipe are in a concentric state; the material injection opening is formed in the protection pipe, and then the fixing frame is arranged on the conveying pipe. The outer wall of the protection pipe is fixed after pipe penetrating, so that the problem that the thickness of a manufactured heat preservation layer is not uniform due to the fact that the protection pipe is eccentric due to the fact that the protection pipe collapses under the action of gravity is avoided, and therefore on the premise that the use of a wood block support is reduced, the concentricity of the protection pipe and the conveying pipe can still be guaranteed, and the uniformity of the heat preservation layer is guaranteed; in this way, the service life of the polyurethane thermal insulation pipe is prolonged, use of wood block supports is reduced, pipe penetrating can be more convenient, and the manufacturing efficiency of a thermal insulation layer of the polyurethane thermal insulation pipe is effectively improved.

The invention relates to the technical field of semiconductor manufacturing, and discloses a chemical mechanical planarization method and a chemical mechanical planarization device.The chemical mechanical planarization method comprises the steps that a to-be-planarized structure is provided, the to-be-planarized structure comprises a substrate layer and a sacrificial layer, a groove is formed in the substrate layer, the sacrificial layer is located on the surface of one side of the substrate layer, and the sacrificial layer is located on the surface of the other side of the substrate layer; the sacrificial layer fills the groove; performing a chemical mechanical planarization step on the surface of one side, deviating from the substrate layer, of the sacrificial layer according to the first process parameter; performing a chemical mechanical planarization step on the surface of one side, deviating from the substrate layer, of the sacrificial layer according to a second process parameter; and when the thickness of any area of the sacrificial layer located on the substrate layer is reduced to zero, the polishing head sets the pressure value applied to the corresponding area of the sacrificial layer to be zero. And when the thickness of any area of the sacrificial layer located on the substrate layer is reduced to zero, the polishing head sets the pressure value applied to the corresponding area of the sacrificial layer to be zero, and the situation that the polishing head continues to polish the area is avoided.

The utility model discloses a chlorine liquefier tube head welding structure which comprises a tube plate and a plurality of heat exchange tubes, and the heat exchange tubes are arranged on the tube plate in a penetrating mode. The length of the part, extending out of the tube plate, of the tube head of the heat exchange tube is 0-1mm; the tube plate is provided with a groove used for being connected with a heat exchange tube, and the angle of the groove ranges from 45 degrees to 60 degrees. The heat exchange tube is in interference fit with the hole wall of the tube plate through expanded connection, and the groove is filled with a welding seam to fixedly connect the heat exchange tube with the tube plate. According to the chlorine liquefier pipe head welding structure, the welding quality of the chlorine liquefier pipe head can be improved, the connection reliability is enhanced, and leakage is effectively prevented.

The utility model relates to PE film processing technical field, concretely is a kind of PE winding film cutting device, including machine plate, the side surface fixed mounting of machine plate has roll stock frame, feeding frame and shearing bin, by setting control distance screw rod, control distance plate, spring, shearing frame, cutting knife, utilize the synergies of these structures, control distance screw rod cooperation control distance slide bar, make control distance plate can accurate lift, to control the cutting depth of cutting knife, satisfy half cut or complete cut two kinds of needs, pressing plate provides pressure by spring, ensure the flatness of cutting edge, by the sliding connection of pressing plate side surface and shearing frame inner side, the movement trajectory of cutting knife is restricted, guarantee the perpendicularity of cutting process, when cutting knife cuts into film, the fitting structure of control distance plate and cutting knife seat provides additional rigid support, reduce the deformation risk of cutting knife, prolong tool life, realize the control of PE winding film cutting depth, stability and precision, improve the efficiency and quality of packaging operation.

The utility model discloses a piston type ship ballast water self -balancing device, including ship body, one side of the inside of ship body is equipped with ballast A, and its other side is equipped with ballast B, is equipped with the communicating pipe between ballast A and ballast B, and the inside of ballast A is provided with multiple groups of negative pressure passage, the inside of negative pressure passage is inserted with piston, and the piston end is fixed with the connecting column, the transmission plate is fixed to the connecting column end. The piston type ship ballast water self -balancing device, the output end of cylinder drives the fixed drive seat and does linear motion, the movement of piston changes the air pressure in ballast A, and then realizes the quick transfer of fluid in ballast A and ballast B by the connection effect of communicating pipe, adjusts the weight distribution of both sides of ship body to offset the inclination force, can respond to the inclination of ship body in real time, effectively avoids the risk of rollover, and the compact structure design, movement steady, guarantee the safety and the comfort of pleasure boat navigation.

The utility model relates to the technical field of oil cylinder, especially to an anti-deformation oil cylinder body. The anti-deformation oil cylinder body comprises an oil cylinder body, a cast carbon steel layer is fixedly embedded on a high manganese steel layer, and a hot strength steel layer is fixedly embedded on the cast carbon steel layer; a plurality of rotatingly connected steel balls are sleeved on the steel ring between adjacent middle connecting plates. When external falling objects hit the steel balls, the steel balls can rotate flexibly along the arc-shaped ball grooves, on the one hand, the falling objects can quickly roll along the surface of the steel balls, avoiding the impact force acting on the cylinder wall of the oil cylinder body for a long time, on the other hand, the curved surface structure of the arc-shaped ball grooves can disperse the concentrated impact force to a larger area of the oil cylinder body, reducing local stress concentration and avoiding cylinder wall depression or cracking.

The utility model relates to the technical field of medical instruments, in particular to a peritoneal dialysis catheter fixing device which comprises a base connected with an external supporting face. A supporting rod is fixed to the middle of the upper side face of the base, a combined spherical shell is fixed to the top of the supporting rod, a ball head is embedded into the combined spherical shell, a fastening rotary knob is arranged on the side face of the combined spherical shell, a connecting rod is fixed to the peripheral side of the ball head, and an arc-shaped piece is fixed to the end of the connecting rod. According to the dialysis tube fixing device, the dialysis tube is limited through a wrapping damping face through the air bag, a traditional clamping and extruding type fixing structure is replaced, the deformation degree of the dialysis tube can be reduced, meanwhile, the dialysis tube fixing device is suitable for fixing and limiting dialysis tubes of multiple sizes, and the dialysis tube fixing device is convenient to use and high in practicability. Under the matching action of the ball head and the combined ball shell, the dialysis tube can move in multiple directions, and the problem that a traditional fixing structure cannot be adjusted is solved.

The invention relates to the technical field of printing machines, in particular to a screen printing machine with positioning and drying functions, the screen printing machine comprises a base, a sealing cover, a lifting moving mechanism and a fixing seat, and the sealing cover and the lifting moving mechanism are oppositely arranged above the base; compared with an existing screen printing machine, the screen printing machine is provided with the sealing frame, so that the steps of pretreatment, printing, drying and the like can be synchronously carried out, and then the working efficiency is improved. By means of the suction holes, the area, close to the suction holes, of the materials can be prevented from being sunken, and therefore it is guaranteed that ink can be evenly and completely conveyed to the surfaces of the materials; the materials printed with the ink can be dried through the fixing bases on the basis that it is guaranteed that the materials do not make contact with the external environment; and hot air after the ink is dried and waste gas generated when the ink is dried are continuously exhausted.

The utility model provides a stub bar pushing-in and collecting device for a cut-off machine, which comprises a support body, one side of the upper part of the support body is connected with transmission wheels, one side of the support body is connected with a cut-off piece, workpieces are connected among the plurality of transmission wheels, one side of the support body is connected with a classification mechanism, the classification mechanism comprises a chute channel, and the chute channel is connected with the cut-off piece. The sliding groove channel is formed in one side of the supporting body, a discharging channel is formed in the middle of the sliding groove channel, a fixing plate is connected to one side of the discharging channel, and a motor is fixed to one side of the fixing plate. Due to the arrangement of the sorting mechanism, after the third collecting box is filled with the workpieces, a transmission plate can slide downwards in a second sliding groove, a protection plate at the lower end of the third collecting box is made to make contact with the ground, then a handle is used for pulling a baffle to slide upwards in a first sliding groove, and the workpieces can roll out of the third collecting box.