31results about How to "Strong self-locking function" patented technology

The invention provides an all-weather outdoor window shutter and a slat driving method thereof. The all-weather outdoor window shutter comprises a plurality of slats with each having a rotary shaft, and a hinge mechanism formed by connecting a plurality of hinges. The rotary shafts of the slats are respectively connected to the hinge mechanism. The all-weather outdoor window shutter further comprises a drive mechanism connected with a drive hinge set. The drive mechanism comprises a slat shift driving mechanism driving the slats to shift and a slat turn driving mechanism driving the rotary shafts of the slats to rotate. A drive process includes: driving the rotary shafts of the slats to rotate by the slat turn driving mechanism. The slat shift driving mechanism and the slat turn driving mechanism in the drive mechanism need not be connected through a gear clutch mechanism. Therefore, the overall structure of the outdoor window shutter is simplified. The all-weather outdoor window shutter is simpler in structure, easier to make, compacter in space, higher in transmission efficiency and more convenient to repair.

An upright lever-type self-locked clamping peanut plant pulling device comprises a walking support, a lever lifting mechanism and a self-locked clamping mechanism. The walking support surrounds the lever lifting mechanism and the self-locked clamping mechanism, and the self-locked clamping mechanism is arranged uprightly. The lever lifting mechanism is characterized by taking a supporting point fixed to a frame as a pivot point, taking a force applied to pedals from feet as power, and taking a force for lifting a lift bar as resistance, thereby forming a lever mechanism for realizing pulling of peanut plants. The self-locked clamping mechanism is characterized in that a screw is utilized to drive two first cross plates so that the included angle of the two cross plates is changed, and the peanut plant is clamped closely by self-locking effect of the screw, which is favorable for pulling of the whole peanut plant. The upright lever-type self-locked clamping peanut plant pulling device is simple and practical, reduces labor intensity of farmers, and meets requirement for most pulling operation of peanut plants.

The invention relates to a waterproof type optical fiber connector. The waterproof type optical fiber connector comprises an adapter assembly and a connector assembly and is characterized in that theadapter assembly comprises an adapter drum body; the front and the back of the periphery of the front end of the adapter drum body are respectively provided with a sealing ring and a clamping groove;an embedding sleeve is mounted in an inner hole of the back end of the adapter drum body; the connector assembly comprises a connector drum body; the front part of the connector drum body is sleeved with an elastic sheath; a hook is arranged at the periphery of the connector drum body in the elastic sheath; a buckle at the front end of the hook is positioned in a lateral through hole formed in theside wall of the connector drum body and enters the inner hole of the connector drum body so as to be matched with the clamping groove in the front end of the adapter drum body inserted into the inner hole of the connector drum body; a core insert assembly is mounted in the inner hole of the connector drum body; and the front end of the core insert assembly is matched with the inner hole in the front end of the adapter drum body. The waterproof type optical fiber connector provided by the invention is reasonable and compact in structural design, good in waterproof performance, convenient to insert and plug out and use, good in self-locking function, reliable in connection performance, capable of realizing firm connection between a connector and an adapter, convenient to construct and drag, and capable of bearing larger pull force.

The invention provides a zipper puller with an independent locking mechanism. The zipper puller comprises a zipper puller body and a pull tab, the zipper puller body is provided with an upper wing plate and a lower wing plate, a sliding groove is formed in the small end of the upper wing plate, a sliding block is installed in the sliding groove through a limiting groove formed in the side wall of the sliding groove, and a through hole penetrating through the upper wing plate is formed in one end of the bottom of the sliding groove; a groove denting upwards is formed in the bottom face of the sliding block, an elastic piece is fixed in the groove, one end of the elastic piece is fixed to the sliding block, and the other end of the elastic piece stretches out of the bottom face of the sliding block in a natural state; when the sliding block slides to the through hole end of the sliding groove, and the free end of the elastic piece is located above the through hole, the free end of the elastic piece can penetrate through the through hole and abut against zipper teeth, and when the sliding block slides away from the through hole end, the elastic piece breaks out of the through hole and retracts into the groove of the sliding block. The zipper puller is provided with the independent locking mechanism and is simple in structure and low in manufacturing cost, the self-locking and unlocking functions of the zipper puller are reliable and stable, and the zipper puller is not prone to sliding down.

The invention discloses an antitheft and anti-demolition diaphragm gas meter corrugated pipe connector, which comprises a corrugated pipe, a connector, a nut sleeve, a snap spring ring, a sealing gasket, a shell and a flat gasket. The inner cavity of the shell is provided with the nut sleeve, an annular groove and the snap spring ring for axial limitation are arranged between the inner cavity of the shell and the nut sleeve, and the joint end faces of the inner cavity of the shell and the nut sleeve are provided with wedge slots so as to form a screwing linkage structure. The pipe connector forms a bearing structure through the cooperation between an outer ring sleeve and steel balls and a pipe sleeve, and the left and right end faces of the pipe connector are parallel with each other. The pipe connector is arranged in an inner hole of the nut sleeve, the left pipe wall is sleeved with the sealing gasket, and the right pipe orifice exposed from the shell is in seal connection with the corrugated pipe. With the formed a self-locking structure, the corrugated pipe connector can only be screwed in one direction to be installed and can prevent free detachment except for destructive detachment. The self-locking structure prevents privately detachment to a maximum degree, effectively avoids leakage and gas steal, and provides effective technical guarantee of public security.

The invention discloses an infrared double-view-field quickly-switched camera lens which comprises a base plate, a front fixed lens set, an overturnable lens set, a rear fixed lens set, a non-refrigerating infrared movement, an eyepiece assembly, a groove wheel mechanism, a bevel gear set and a driving assembly. The overturnable lens set and the groove wheel mechanism are connected with a mountingseat through a connecting shaft, and the mounting seat is fixed to the base plate. The bevel gear set consists of a bevel gear I and a bevel gear II which are meshed with each other, wherein the bevel gear I is fixed to the end of the groove wheel mechanism through a connecting shaft, the bevel gear II is installed at the end of the driving assembly through a transmission shaft, and the driving assembly is fixed to the base plate and drives the groove wheel mechanism to operate through the bevel gear set. The infrared double-view-field quickly-switched camera lens utilizes the groove wheel mechanism to drive the overturnable lens set to achieve overturning in the range from 0 degree to 90 degrees, the switching time is short, a self-locking function is strong, and the camera lens can resist outside violent vibration and is high in use reliability.

The invention discloses a mechanical self-locking oil cylinder which comprises a cylinder body. A piston rod is mounted in the cylinder body. A self-locking cylinder barrel is mounted on the lower portion of the cylinder body. A cover plate is mounted at the lower end of the self-locking cylinder. A self-locking spring is mounted on the inner side of the cover plate. The lower end of the self-locking spring is connected with the cover plate. A self-locking piston is mounted on the lower portion of the inner side of the self-locking cylinder barrel. The lower end of the self-locking piston is connected with a self-locking spring. A fixing seat is mounted on the lower portion of the cylinder body. The fixing seat is located on the upper side of the self-locking cylinder barrel. The lower end of the fixing seat is matched with the self-locking cylinder barrel. Multiple self-locking sheets are mounted on the inner side of the self-locking cylinder barrel and located between the fixing seat and the self-locking cylinder barrel. The upper portion of the piston rod is matched with the cylinder body. The middle portion of the piston rod is matched with the fixing seat. The lower end of the piston rod is matched with the self-locking piston. According to the mechanical self-locking oil cylinder, on the premise that the oil channels of the oil cylinder are not changed, automatic mechanical self locking of the oil cylinder is achieved, pressing force is generated on a workpiece, and the mechanical self-locking oil cylinder is compact in structure, small in size and reliable and stable in self-locking function.

The invention discloses an antitheft and anti-demolition diaphragm gas meter corrugated pipe connector, which comprises a corrugated pipe, a connecting pipe, a nut sleeve, a snap spring ring, a sealing gasket, a shell and a flat gasket. The inner cavity of the shell is provided with the nut sleeve, an annular groove and the snap spring ring for axial limitation are arranged between the inner cavity of the shell and the nut sleeve, and the joint end faces of the inner cavity of the shell and the nut sleeve are provided with wedge slots so as to form a screwing linkage structure. The connecting pipe forms a bearing structure through the cooperation between an outer ring sleeve and steel balls and a pipe sleeve, and the left and right end faces of the connecting pipe are parallel with each other. The connecting pipe is arranged in an inner hole of the nut sleeve, the left pipe wall is sleeved with the sealing gasket, and the right pipe orifice exposed from the shell is in seal connection with the corrugated pipe. With the formed a self-locking structure, the corrugated pipe connector can only be screwed in one direction to be installed and can prevent free detachment except for destructive detachment. The self-locking structure prevents privately detachment to a maximum degree, effectively avoids leakage and gas steal, and provides effective technical guarantee of public security.

The invention provides an electromechanical self-locking clamping peanut pulling-up device. The device is characterized in that a walking support encircles a lifting mechanism and a self-locking clamping mechanism; the walking support is connected together with the lifting mechanism via bearings; the lifting mechanism is connected together with the self-locking clamping mechanism via bolts and a first motor; in the self-locking clamping mechanism, a first screw is utilized to drive two first scissors fork plates so that the included angle formed by the first scissors fork plates changes, and clamp blocks can clamp peanut pods and tightly clamp the peanut pods under the self-locking action of the screw at the same time to clamp the peanut pods; by utilizing connection action of a second screw and a thread on a first baffle, the lifting mechanism can carry out lifting motion on a predetermined track to pull up peanuts. The device can satisfy most peanut pulling-up operations and has the effect of reducing the labor intensity of farmers.

The invention provides a zipper puller with an independent locking mechanism. The zipper puller comprises a zipper puller body and a pull tab, the zipper puller body is provided with an upper wing plate and a lower wing plate, a sliding groove is formed in the small end of the upper wing plate, a sliding block is installed in the sliding groove through a limiting groove formed in the side wall of the sliding groove, and a through hole penetrating through the upper wing plate is formed in one end of the bottom of the sliding groove; a groove denting upwards is formed in the bottom face of the sliding block, an elastic piece is fixed in the groove, one end of the elastic piece is fixed to the sliding block, and the other end of the elastic piece stretches out of the bottom face of the sliding block in a natural state; when the sliding block slides to the through hole end of the sliding groove, and the free end of the elastic piece is located above the through hole, the free end of the elastic piece can penetrate through the through hole and abut against zipper teeth, and when the sliding block slides away from the through hole end, the elastic piece breaks out of the through hole and retracts into the groove of the sliding block. The zipper puller is provided with the independent locking mechanism and is simple in structure and low in manufacturing cost, the self-locking and unlocking functions of the zipper puller are reliable and stable, and the zipper puller is not prone to sliding down.

The invention relates to a clamping device which at least comprises a shell, a rotating disc, a shaft sleeve, a clamping mechanism and a first driving mechanism, wherein the clamping mechanism at least comprises a set of clamping assemblies, and the clamping assemblies are installed on the rotating disc in a sliding mode and matched with a to-be-clamped piece; the first driving mechanism is matched with the clamping mechanism; the first driving mechanism at least comprises a first driving assembly; each first driving assembly comprises a first driving part, a rotating plate, push rods and movable blocks, the rotating plate sleeves the periphery of the shaft sleeve and can rotate relative to the shaft sleeve, the push rods are mounted on the rotating plate, the movable blocks are movably mounted on the rotating disc, one end of each movable block movably sleeves the corresponding push rod, and the other ends of the movable blocks sequentially penetrate through the rotating plate and the rotating disc to be connected with the corresponding clamping assembly; and the first driving parts can drive the rotating plates to rotate, the rotating plates rotate to drive the push rods to push the movable blocks, and the movable blocks push the clamping assemblies to slide. The clamping device is simple in overall structure, low in cost, good in stability, high in self-locking function and convenient to maintain and use.

The invention discloses a wheelchair, which comprises a main body frame, a chair back mechanism, a lifting mechanism and a belt conveying mechanism, wherein the chair back mechanism, the lifting mechanism and the belt conveying mechanism are arranged on the main body frame; the chair back mechanism comprises installation seats fixed with the main body frame; and the installation seats are symmetrically arranged on two sides of the main body frame. The wheelchair also comprises chair back rods, wherein the chair back rods are rotatably connected with the installation seats through rotary shaftsarranged on the lower ends of the chair back rods; each rotary shaft is fixedly provided with a driven gear; the main body frame is fixedly provided with self-locking motors; the output shaft of eachself-locking motor is fixedly provided with a driving gear; each driven gear and each driving gear are meshed; a belt-shaped backrest belt is tensioned between the two chair back rods; and a path onthe conveying mechanism is also provided with a scraper blade mechanism. The lifting strength of the lifting mechanism of the wheelchair is higher, the wheelchair has an extremely good self-locking function to avoid a defect of falling, and the chair back can slowly incline before conveying belt is started so as to assist a patient in lying on the conveying belt. In addition, the scraper blade mechanism is arranged so as to effectively remove dirt on the surface of the conveying belt.

The invention relates to an automobile combination switch having a fog lamp self-locking function. The automobile combination switch is characterized by comprising a stop pushing post, a pressure spring, a slide block, a slide block pressure spring and a pushing rod arranged in a light rotation block, wherein a fixing seat is internally provided with a stop locus groove in matching with the slide block, the slide block is arranged in the stop locus groove, two ends of the slide block pressure spring respectively press against the slide block and the fixing seat, a fog lamp turn button is internally provided with a disposing groove in matching with the stop pushing post, the pressure spring is arranged in the disposing groove, the other end of the pressure spring presses against the stop pushing post, two ends of the stop pushing post respectively press against the slide block and the pressure spring, two ends of the slide block respectively press against the pushing rod and the stop pushing post, one end of the slide block which contacts the pushing rod is provided with a stop step, and the stop pushing post is telescopic in the stop locus groove. The automobile combination switch can effectively solve problems that a back fog lamp function of a fog lamp in the prior art can not realize large-small lamp control and the fog lamp in the prior art can not realize the self-locking function, the automobile combination switch has properties of reasonable structure and reliable function and can be widely applied to the automobile combination switch field having the fog lamp self-locking function.

The invention relates to a multi-core optical fiber connector. The multi-core optical fiber connector comprises an adapter assembly and a connector assembly. The connector is characterized in that the adapter assembly comprises an adapter cylinder; a front cavity and a rear cavity are arranged in the adapter cylinder; an inner connecting cylinder is arranged in the front cavity; a clamping jaw is arranged between the inner connecting cylinder and the inner wall of the adapter cylinder; a butt joint cavity is arranged in the rear cavity; the butt joint cavity is provided with clamping hooks; the butt joint cavity is communicated with the inner connecting cylinder; the connector assembly comprises a connector cylinder; the front portion of the connector cylinder is connected with the front cavity of the cylinder barrel in a matched mode; the middle front portion of the connector cylinder is sleeved with an elastic outer sleeve; the periphery of the connector cylinder in the elastic outer sleeve is provided with clamping grooves connected with adapter clamping jaw in a clamped mode; and the inner hole of the connector cylinder is provided with a multi-core insertion core assembly; the front end of the multi-core insertion core assembly is connected with the butt joint cavity of the adapter cylinder. Parallel butt joint of multiple optical fibers can be achieved. The multi-core optical fiber connector has the advantages of reasonable and compact structure, good waterproof performance, easiness and convenience in plugging and using and reliable connection.

The invention relates to the technical field of automobiles, in particular to a battery pack battery replacement locking mechanism and an automobile. The battery pack battery replacement locking mechanism comprises a shell, a rack, a gear, a driving part, a fixing part and a locking pin, the shell is provided with a connecting hole, the rack is arranged in the shell, the gear is in meshing transmission with the rack, the driving part is used for driving the rack to do linear reciprocating motion, the fixing part is arranged in the center of the gear, and the locking pin is arranged in the fixing part. A locking pin is in threaded connection with the fixing part in a sleeving manner, and the locking pin is telescopically arranged in the connecting hole so as to be inserted into or separated from the mounting hole of the battery pack. According to the battery pack battery replacement locking mechanism and the automobile, locking and unlocking of the battery pack can be achieved only by driving the rack to do linear reciprocating motion, and efficiency is greatly improved.

The invention relates to an easy-plug waterproof optical fiber connector, which includes an adapter assembly and a connector assembly. Connecting tube, claws are set between the inner tube and the inner wall of the adapter tube, the rear cavity is provided with a hook, the rear end of the inner hole of the inner tube is provided with a nest, the nest extends to the rear cavity, and the nest is installed A ceramic sleeve is provided, the connector assembly includes a connector cylinder, the outer periphery of the front end of the connector cylinder is provided with a sealing ring that is configured with the inner hole of the front cavity of the adapter, and the middle and front part of the connector cylinder is covered with an elastic jacket , the outer periphery of the connector cylinder in the elastic jacket is provided with a card slot that is configured with the adapter claws, the inner hole of the connector cylinder is provided with a ferrule assembly, and the front end of the ferrule assembly is connected to the inner surface of the front part of the adapter cylinder. The inner hole of the cylinder is configured. The invention not only has compact structure, reasonable setting and good waterproof performance, but also is easy to plug and use and reliable to connect.

An economical elevator additionally arranged outside a building comprises an old building, an old stair, an elevator shaft, a shaft door, a car, a car door, an elevator door platform, a newly-built walkway, a newly-built stair, an elevator machine room, a harmonic speed reduction traction machine, a traction wheel, a traction guide wheel, a steel wire rope, a car guide wheel, a car guide rail, counterweight iron plates, counterweight guide wheels, counterweight guide rails, Hall sensors, strip-shaped permanent magnets, an intelligent controller and operating buttons; the harmonic speed reduction traction machine is a hub type traction machine integrating a harmonic speed reducer, a two-pole outer rotor brushless permanent magnet direct current motor and the traction wheel; when the two-pole outer rotor brushless permanent magnet direct current motor is shut down, large magnetic resistance exists between a rotor and a stator, a speed reduction ratio of the harmonic speed reducer is large; when the harmonic speed reduction traction machine is shut down, the harmonic speed reduction traction machine has a strong self-locking function which is equivalent to a braking state, a braking system of the traction machine is omitted, the harmonic speed reduction traction machine is simple and cheap, and the safety and the reliability meet the standard requirements.

The invention provides a self-locking orthodontic bracket, which comprises a bottom plate used for being matched with the surface radian of a dental crown and being adhered to the surface of the dental crown; a main body is provided with a groove and a clamping hole, the groove is used for accommodating an orthodontic wire and transmitting the orthodontic wire to apply orthodontic force to the surface of the dental crown, and the clamping hole is used for placing a clamping piece; one surface, deviating from the dental crown, of the bottom plate is welded on the bottom end surface of the main body; a locking plate is clamped on the upper end surface of the main body in a sliding manner so as to be connected with the clamping piece on the main body in a sliding manner; and the opening direction of the groove is upward. Theself-locking orthodontic bracket has the advantages that the defect that locking between the locking plate and the main body is not firm can be effectively overcome, the self-locking function is strong, and due to the structural characteristics of the self-locking orthodontic bracket, automatic unlocking cannot occur when hard food is eaten in the using process, so that the situation that human bodies are injured due to separation of the locking plate is avoided, and the safety and the stability of the structure protected by the invention are improved while the functionality of the structure is ensured.

The invention discloses a vehicle mechanical self-locking oil cylinder. The vehicle mechanical self-locking oil cylinder comprises a cylinder body, wherein a piston rod is mounted at the inner side of the cylinder body; a self-locking cylinder barrel is mounted at the lower part of the cylinder body; a cover plate is mounted at the lower end of the self-locking cylinder barrel; a self-locking spring is mounted at the inner side of the cover plate; the lower end of the self-locking spring is connected with the cover plate; a self-locking piston is mounted at the lower part of the inner side of the self-locking cylinder barrel; the lower end of the self-locking piston is connected with the self-locking spring; a fixed base is mounted at the lower part of the cylinder body, and is positioned at the upper side of the self-locking cylinder barrel; the lower side end part of the fixed base fits the self-locking cylinder barrel; multiple self-locking pieces are mounted at the inner side of the self-locking cylinder barrel, and are positioned between the fixed base and the self-locking cylinder barrel; the upper part of the piston rod fits the cylinder body; the middle part of the piston rod fits the fixed base; and the lower end of the piston rod fits the self-locking piston. The vehicle mechanical self-locking oil cylinder realizes automatic mechanical self-locking of the oil cylinder under the precondition of not changing an oil way of the oil cylinder, generates pressing force to workpieces, and is compact in structure, small in volume and reliable and stable in self-locking function.

The invention discloses a curtain brake head comprising a brake head seat and a brake head cover connected with the brake head seat. A cavity is formed in the brake head seat; a chain wheel is arranged in the inner cavity, one end of the chain wheel is rotationally connected with the brake head cover, and a central gear is arranged at the other end of the chain wheel and connected with a planet gear system; the other end, opposite to the chain wheel, of the planet gear system is connected with a clutch cover, and a clutch shaft is arranged at the other end of the clutch cover; a rotating shaft is arranged at the end, away from the clutch cover, of the clutch shaft, and penetrates through the inner cavity through the brake head seat; a plurality of gaps are reserved between the clutch cover and the clutch shaft as well as between the clutch shaft and the rotating shaft, and rollers are arranged in the gaps. According to the curtain brake head, in working, the chain wheel drives the planet gear system to rotate, accordingly a clutch drives a curtain to rise and fall; stable braking and self-locking functions are achieved; all the parts are in clearance fit, the requirement for precision is reduced, and the production efficiency is improved; and the curtain brake head is used for the field of curtain brake heads.

The invention relates to a multi-core optical fiber connector, which includes an adapter assembly and a connector assembly, and is characterized in that the adapter assembly includes an adapter cylinder, and the adapter cylinder is divided into a front cavity and a rear cavity, and the front cavity is provided with an inner sleeve. Claws are provided between the inner barrel and the inner wall of the adapter barrel, the rear cavity is provided with a docking cavity, and is equipped with a hook, the docking cavity communicates with the inner hole of the inner barrel, and the connector assembly includes a connection The head cylinder, the front part of the connector cylinder is matched with the front cavity of the adapter cylinder, the middle and front part of the connector cylinder is covered with an elastic jacket, and the outer periphery of the connector cylinder in the elastic jacket is provided with a claw corresponding to the adapter. The clamping slot for clamping, the inner hole of the connector cylinder is provided with a multi-core ferrule assembly, and the front end of the multi-core ferrule assembly is connected with the docking cavity of the adapter cylinder. The invention can realize the parallel docking of multiple optical fibers, not only has a reasonable and compact structure, good waterproof performance, but also is easy to plug and use and reliable to connect.