18results about How to "Avoid deformation failure" patented technology

The utility model discloses a flood-proof roller shutter door. The flood-proof roller shutter door comprises a roller shutter assembly, the roller shutter assembly comprises a plurality of roller shutter pieces and a plurality of flood-proof baffles which are connected in sequence, the roller shutter pieces are hinged, the flood-proof baffles are hinged, the roller shutter pieces and the flood-proof baffles are hinged, and the roller shutter pieces and the flood-proof baffles are detachably connected; the roller shutter mechanism is connected with the roller shutter pieces located at the head end of the roller shutter assembly and used for driving the multiple roller shutter pieces and the multiple flood-proof baffles to be rolled or stretched. The pressing mechanism comprises a first pressing assembly and a second pressing assembly, the first pressing assembly comprises a first driving part and a pressing plate, and the first driving part is connected with the pressing plate and used for driving the pressing plate to press the multiple flood-proof baffles in the horizontal direction; the second pressing assembly is used for pressing the multiple flood-proof baffles on the supporting face in the vertical direction. By means of the mode, the flood-proof rolling shutter door can efficiently and conveniently achieve the water retaining effect.

The utility model relates to a kind of fireproof bridge temperature regulation telescopic device, it includes telescopic joint subassembly and cover plate subassembly constitute, telescopic joint subassembly contains symmetrically set in the telescopic section of middle section both sides, two sliding fit, telescopic section top wall's limiting bolt is embedded in the waist type slot of middle section, realize sliding guide and stroke control, cover plate subassembly includes fixed cover plate, movable cover plate and piano key telescopic sealing cover, fixed cover plate is fixedly connected telescopic section, movable cover plate buckling middle section, three are through piano key telescopic sealing cover telescopic cooperation, and device uses double fireproof structure of outer spraying fireproof coating and inner pasting nonmetal fireproof lining, when working, device can adapt to bridge thermal expansion and contraction, length is adjusted by telescopic joint subassembly, piano key telescopic sealing cover guarantees airtightness, have telescopic adjustment and long-term airtightness, fireproof performance is stable, structure is stable and installation maintenance is convenient.

The utility model discloses a handheld part and pruning machine, wherein the handheld part comprises a main machine, a main handle and a battery pack, the main handle is detachably installed at the rear end of the main machine, and the battery pack is detachably installed at the main handle. The utility model changes the inseparable installation mode of the main handle with relatively large space occupation on the handheld part and the main machine in the traditional structure, the main handle is designed to be detachably installed on the main machine, so that the main handle is removed during packaging and transportation, thereby effectively reducing the size of the handheld part, laying a foundation for optimizing the packaging size of the pruning machine, thereby saving the transportation cost. In addition, the battery pack is detachably installed on the main handle, which can ensure the continuous operation of the main machine by replacing the battery pack, and further saves the packaging space. The battery pack is disassembled and packaged, making the transportation and packaging design more flexible.

The valve comprises a valve body, a valve element and a driving assembly, a sealing cavity is formed in the valve body, an opening is formed in one end of the sealing cavity, an inner sealing face is arranged in the sealing cavity, the valve element is connected into the sealing cavity in a rotating mode, an outer sealing face is arranged on the valve element, a liquid inlet and a first liquid outlet are formed in the valve body, and a liquid passing channel is formed in the valve element. The liquid passing channel can be communicated with the liquid inlet, the liquid passing channel is provided with a containing groove, an annular sealing piece is arranged in the containing groove, a switching hole is formed in the annular sealing piece, and a contact sealing face is arranged on the annular sealing piece; the containing groove is formed in the other end of the liquid passing channel of the valve element, the annular sealing piece made of the material with the low friction coefficient is arranged in the containing groove, and the contact sealing face of the annular sealing piece and the inner sealing face of the valve element are in sealing and sliding fit, so that friction between the valve element and the valve body can be reduced, and durability is improved; the containing groove can maintain the overall shape of the annular sealing piece, and the annular sealing piece is prevented from deforming and losing efficacy due to pressure.

The invention relates to the technical field of frequency conversion cabinet protection, and provides a frequency conversion cabinet with a multi-layer supporting mechanism, which comprises a base, a protection frame is fixedly mounted at the top of the base, damping rods I are hinged to four corners of the inner wall of the protection frame, and a frequency conversion cabinet body is hinged to the inner wall of the protection frame through the damping rods I; a top plate is fixedly mounted at the top of the protection frame, and a transfer plate is hinged to the bottom of the top plate. According to the device, through redesign, the protection structure is greatly simplified, meanwhile, the situation that the device bears pressure from the horizontal direction, and consequently materials are pressed, deform and lose efficacy is avoided, and in order to achieve the purpose, a multi-layer supporting structure is readjusted through the device, specifically, according to the device, a lever with a transfer plate as a force arm is adopted; therefore, the stone breaking pressure borne by the outer protection plate is reduced to the maximum extent and then acts on the second damping rod, the pressure borne by the second damping rod is reduced, and the horizontal pressure of the second damping rod and the transmission plate on the base and the protection frame is reduced.

The groove-adjustable supporting device comprises seat bodies, a connecting mother rod and two adjusting supporting rods, the seat bodies are arranged at intervals, spherical mounting holes are formed in the seat bodies, one ends of the adjusting supporting rods are provided with spherical hinge seats which are arranged in the spherical mounting holes, and the spherical hinge seats are connected with the connecting mother rod. And the other end of the adjusting support rod is connected with the other adjusting support rod through a connecting mother rod. According to the groove-adjustable supporting device, the design that the spherical hinge seat is arranged in the groove-adjustable supporting device, the connecting nut and the adjusting supporting rod are combined is adopted, the groove with the uneven surface can be used for supporting, and the groove-adjustable supporting device can rotate freely to adapt to the perpendicularity of the surface of a crown beam or an enclosing purlin; the connecting mother rod and the adjusting supporting rod are stressed in a balanced and axial mode, and the supporting device is prevented from sliding or deforming and losing efficacy.

The utility model provides a kind of external hexagonal bolt of anti-loosening, including stud, screw head, nut, inner inflation hole, internal thread, inner inflation head and deformation groove, the stud and screw head are integrally set together, the stud is threadedly installed with nut, one end is provided with inner inflation hole, internal thread and deformation groove, the inner inflation head is threadedly connected with the internal thread of stud setting;The utility model improves strength by solid stud (no through hole);Circular array deformation groove cooperates conical inner inflation head, evenly expands to form stable interference when screwing, and the anti-loosening is superior to traditional;Inner inflation head integrally designed, screw rod is directly connected with internal thread, and installation is simple, stress is uniform.

The application relates to a low-temperature vacuumizing device and method for a vacuum cup with a temperature control component, wherein the device is provided with a vacuumizing box body; the vacuumizing box body is internally provided with a first heating module, a fixing tool for fixing and placing the vacuum cup with the temperature control component, and a second heating module for heating the sealing position of the bottom of the vacuum cup; the fixing tool comprises a support; the support is provided with a mounting station for fixing and placing the vacuum cup; the support is further provided with a temperature control plate; the temperature control plate is internally provided with a heat exchange channel for the flow of a heat exchange medium; the temperature control plate is provided with a penetrating hole through which the bottom of the vacuum cup can pass and form heat transfer contact with the vacuum cup; when the vacuum cup is placed on the mounting station, the temperature control component on the vacuum cup is not located between the bottom of the vacuum cup and the temperature control plate; and the temperature control device in communication with the heat exchange channel is further included. The application can meet the vacuumizing of the vacuum cup and effectively prevent the deformation and failure of the temperature control component on the vacuum cup.

This utility model discloses a planar linear bearing, including a base, rollers, and an end cap. The base has a groove, and the rollers are disposed within the groove. The groove includes a first groove, a second groove, and a transition groove. The second groove is deeper than the first groove. The first and second grooves are smoothly connected via the transition groove to form a loop. An exposure window is provided on the first groove. The end cap covers the base, shielding the groove. The end cap includes a support portion and a connecting portion. The support portion is positioned corresponding to the first groove, and the connecting portion is positioned corresponding to the second groove. The connecting portion is higher than the support portion, and the connecting portion and the support portion are connected by a transition slope. The base also has a positioning component for positioning the end cap. Its structure is simple, increases bearing load, ensures structural strength, and possesses good toughness, thus improving structural performance.

The invention relates to the field of heat treatment furnaces, in particular to a heat treatment equipment anti-toppling vertical tube furnace which comprises a furnace body and further comprises an anti-toppling mechanism fixedly installed on the outer wall of the furnace body, the anti-toppling mechanism comprises a groove box fixedly connected with the outer wall of the furnace body, the groove box is vertically arranged, a rectangular groove opening of the groove box is formed towards the outer side of the furnace body, and the groove box is fixedly connected with the outer wall of the furnace body. A groove box is arranged in the furnace body, an inclined plate is arranged at the bottom of the groove box in the inclined lower direction away from the furnace body, an outer sleeve is connected into the groove box in a sleeved mode, the top end of the outer sleeve is hinged to the top of the groove box, an inner sleeve is connected into the outer sleeve in a sleeved mode, and the bottom end of the inner sleeve communicates with the atmosphere. According to the device, when the vertical furnace topples over, the inclination angle of the vertical tube furnace is taken as a triggering condition, and the anti-inclination mechanism can timely pop out to a set angle and is supported on the ground, so that the purpose of supporting and protecting the vertical tube furnace during toppling over is achieved; the problem that in the prior art, collision and toppling risks exist during special operation due to the thin and high appearance structure characteristic of a vertical tube furnace is effectively solved.

The invention belongs to the technical field of blast furnace hot blast stove safety control, and particularly relates to a blast furnace hot blast stove safety optimization method based on multi-valve cooperation, which comprises the following steps: (1) safety optimization of a gas combustion valve: 1, double valves are closed in place for interlocking protection; 2, the temperature between the valves is monitored in real time; and 3, key valve signal interlocking upgrading. (2) safety optimization and opening in-place signal dual detection of the hot blast valve; (3) safety optimization of the cold air valve and a cold air valve opening in-place signal dual verification structure; (4) multi-valve cooperative interlocking logic upgrading; and (5) test and verification: 1, signal distortion simulation test; 2, temperature alarm test; and 3, carrying out a delay verification test. According to the method, by means of double-signal series verification, temperature threshold alarm setting, delay verification and multi-link interlocking protection, misoperation caused by signal distortion is completely eradicated, immediate response is achieved, blast furnace wind interruption and slag pouring caused by false in-place opening signals are prevented, normal production is ensured, and economic losses are avoided.

This utility model discloses a concealed microphone with a protective structure, belonging to the technical field of audio acquisition equipment, aiming to solve the problems of insufficient protection and inconvenient installation and maintenance of existing concealed microphones. It includes a microphone body with a head and a threaded shell. A first fixing plate with an annular mounting groove, a limiting groove, and a rotating plate is provided between the head and the shell. A thickened nut is fitted onto the shell. A protective assembly including multiple sleeve-type multi-section telescopic rods, springs, and magnets is installed between the two. One end of the telescopic rod is connected to the rotating plate, and the other end is magnetically attracted to the nut via a magnet. An internal spring assists in its extension and retraction. The length of the telescopic rod can be adjusted by rotating the nut. The storage annular groove and the mounting groove are compatible, achieving all-round buffer protection, balancing installation concealment and maintenance convenience, ensuring microphone structure and sound pickup stability, and is suitable for scenarios requiring concealed audio acquisition.

The utility model discloses a fireproof sealing device for a compression door of a delivery window. The fireproof sealing device comprises a circle of front sealing groove formed along the inner wall of a front delivery window, a circle of rear sealing groove formed along the inner wall of a rear delivery window, a front fireproof sealing gasket matched with the front sealing groove in shape and a rear fireproof sealing gasket matched with the rear sealing groove in shape. The front fireproof sealing gasket and the rear fireproof sealing gasket each comprise an m-shaped soft sealing gasket body and a rectangular soft sealing gasket body, the bottoms of the m-shaped soft sealing gasket bodies are fixed to the tops of the rectangular soft sealing gasket bodies, hard fireproof inner cores are plugged in the rectangular soft sealing gasket bodies, the front fireproof sealing gasket is embedded in the front sealing groove, and the rear fireproof sealing gasket is embedded in the rear sealing groove. The m-shaped soft sealing gasket body is attached to the front pressing door, the rectangular soft sealing gasket body of the front fireproof sealing gasket is attached to the inner bottom of the front sealing groove, the rear fireproof sealing gasket is embedded in the rear sealing groove, the m-shaped soft sealing gasket body is attached to the rear pressing door, and the rectangular soft sealing gasket body of the rear fireproof sealing gasket is attached to the inner bottom of the rear sealing groove.

A full-tooth-height super-large-modulus straight gear forge piece comprises a half-tooth-height step and full-tooth-height steps, and the thickness of the half-tooth-height step is not smaller than the height of a transition arc between every two adjacent full-tooth-height steps. The difference value between the tooth profile contour line of the full-tooth-height super-large-modulus gear forge piece of the full-tooth-height step and the tooth profile contour line of the machined super-large-modulus gear part is uniform, and the tooth profile metal streamlines of the full-tooth-height step are continuously distributed along the tooth profile contour; an upper tooth-shaped punch of the forming device is connected with an upper sliding block of a pressing machine through a switching mechanism, the upper tooth-shaped punch is used for extruding a metal blank in a lower die assembly, and in the extrusion process, forging preparation is achieved through left-right movement of a left die assembly and a right die assembly which are symmetrically arranged. According to the forged piece manufactured through the method, after machining, it can be guaranteed that a metal flow line is distributed along the profile of a part, the metal flow line is basically free of cutting and outcrop phenomena, the strength of the gear is well improved, and the requirements for high-load large-modulus gears in the fields of engineering machinery, ocean equipment and aerospace equipment can be met.

The utility model discloses a swing ring box device which comprises a box body, a swing shaft and a swing arm, the swing shaft comprises a front section, a middle section and a rear section, the rear section is a swing ring of an annular structure, a rotating shaft is arranged in the center of the tail end of the swing ring, the swing shaft is installed in the box body, the middle section and the rear end of the swing shaft are located in the box body, the front section of the swing shaft extends out of the box body, and a groove is formed in the bottom face in the box body. The rotating shaft is installed in the groove through a bearing, the swing ring is installed on the swing ring base through a bearing, the front section of the swing shaft is sleeved with the upper section of the swing arm, the swing ring base is connected with a transmission structure, the transmission structure is used for driving the swing ring shaft to rotate, and a cutter assembly is arranged at the lower end of the swing arm.

The invention provides an industrial pipeline bearing hanging bracket. The industrial pipeline bearing hanging bracket comprises a cross beam, a lifting lug, a first hanging rod, a fastening piece, a connecting piece, a second hanging rod and a pipe support used for limiting an industrial pipeline. The lifting lugs are connected to the lower ends of the two sides of the cross beam in the X direction, through holes allowing the first lifting rods to penetrate through are formed in the lifting lugs, sliding blocks are arranged at the upper ends of the first lifting rods and make contact with the upper surfaces of the lifting lugs, the through holes are through in the first direction X, and the sliding blocks extend in the second direction Y; the first direction X and the second direction Y are perpendicular to each other on the same overlook projection plane; the lower end of the first lifting rod is connected with the upper end of the connecting piece through a fastening piece; the upper ends of the second hanging rods are connected with the lower end of the connecting piece through fasteners, and the lower ends of the two second hanging rods are connected with the pipe support. Flexible connection of the lifting lug and the first lifting rod is achieved, deformation and failure of the lifting frame are avoided, and the service life of the lifting frame is prolonged.

A male terminal of the wire-to-board small-space connector is provided with a plugging part at the front end and a riveting part at the rear end, the plugging part is provided with a contact main body, a contact pressurization part and a posture control part, the contact pressurization part is used for enhancing the contact conduction state of the contact main body, and the posture control part limits the contact pressurization part in a certain space. The contact pressurizing part is kept in a set posture and has a pressurizing property; the female terminal is provided with a slot defined by a bottom plate, a left side plate, a right side plate and a top plate, the slot is matched with the insertion part of the male terminal for insertion connection, and the contact relationship between the contact main body and the inner wall of the slot is enhanced through the stress of the contact pressurization part in the slot; and the female terminal is provided with a stop part for limiting the insertion depth of the insertion part and a clamping part for limiting the insertion and retreat of the insertion part. According to the utility model, close contact connection of the male terminal and the female terminal is ensured, a large contact area is obtained, the conductivity is stronger, deformation and failure of the contact pressurization part can be prevented, and the service life is prolonged.

This invention relates to the field of cementing equipment technology in oil extraction, specifically a casing centralizer for oil extraction cementing. It includes two identical centralizer mounting bases, a first centralizer mounting base and a second centralizer mounting base. Multiple inner constraint spring plates are distributed between the two bases and combined to form a cylindrical frame. Outer main spring plates are correspondingly located on the outer sides of the inner constraint spring plates. The centralizer also includes a curvature adjustment mechanism and wellbore inner diameter detection and control equipment. The curvature adjustment mechanism drives a sliding column via a hydraulic system, pulling a curvature adjustment rope to adjust the distance between the outer main spring plates and the inner constraint spring plates. This centralizer can dynamically adapt to the outer diameter according to the wellbore inner diameter, providing precise and stable adjustment. It reduces downhole movement friction and component wear, ensuring the casing remains centered, effectively improving cementing construction quality and equipment operational reliability, and adapting to complex and harsh downhole conditions.