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32results about How to "With anti-off function" patented technology

Double-nut anti-off sucker rod string in thick oil horizontal well

The invention relates to an anti-off sucker rod string in a thick oil horizontal well, which is a double-nut anti-off sucker rod string of the thick oil horizontal well. The double-nut anti-off suckerrod string of the thick oil horizontal well comprises a tubing pump plunger, a sucker rod adapter, an anti-off sucker rod centralizer, an anti-off sucker rod anti-off device, an anti-off weighted lever, an anti-off sucker rod, a polished rod, a coupling, lock nuts and an annular groove. The anti-off sucker rod, the anti-off sucker rod anti-off device, the anti-off sucker rod centralizer and a weighted lever adapter are connected with one another in turn through embedded type anti-off structures and are fixed by the lock nuts. When the coupling is screwed up with a lock screw cap, threads arepulled in a screwing section and the nuts are pressed to form a threaded connection pair compressed horizontally; besides, the lock screw cap is designed with the annular groove which plays a role oflocking by means of the generated pretightening force elastic deformation. The structure of the anti-off sucker rod string allows the entire anti-off sucker rod string to have the anti-off function toensure the overall anti-off reliability of the sucker rod string in the horizontal well, and the anti-off sucker rod string has the advantages of reasonable and compact structure, convenient use, safety and reliability.
Owner:中国石油新疆油田分公司采油工艺研究院

Novel hand-slip preventive brake pull rod for railway truck

The invention discloses a novel hand-slip preventive brake pull rod for a railway truck. The novel hand-slip preventive brake pull rod comprises a hand-slip preventive guide frame, a pull rod head and a pull rod. Guide grooves are formed in the hand-slip preventive frame along the vertical direction of the hand-slip preventive frame, a carrier roll is arranged on the lower portion of the hand-slip preventive frame, a hand-slip preventive groove is formed in the pull rod head along the horizontal direction of the pull rod head, the pull rod head is arranged on the carrier roll and is connected with the hand-slip preventive guide frame by a hand-slip preventive pin which penetrates the guide grooves and the hand-slip preventive groove, and an end of the pull rod is fixedly connected with a tail groove of the pull rod head. The novel hand-slip preventive brake pull rod has the advantages that problems of clamping stagnation due to the fact that an existing hand brake pull rod for a railway truck slips out of an existing carrier roll at a sudden sectional change position of round steel and breakage of the existing hand brake pull rod due to fatigue and stress concentration at a sectional sudden change position of the tail of the existing hand brake pull rod can be effectively solved by the aid of the novel hand-slip preventive brake pull rod; the pull rod head still can be fixed onto the hand-slip preventive guide frame by the aid of the hand-slip preventive pin even if the tail of the pull rod is accidentally broken, a rod body of the integral pull rod head can be supported by the carrier roll without falling off, and accordingly the driving safety can be guaranteed.
Owner:CRRC MEISHAN

Novel scroll winding and unwinding device for advertisement design

InactiveCN112037693ASmall footprintEasy to carry and moveFlags/bannersCoil springIndustrial engineering
The invention discloses a novel scroll winding and unwinding device for advertisement design, and belongs to the technical field of advertisement design. A storage groove is formed in a left shell, openings communicating with each other are formed in one side face of the storage groove, a lower cover is fixedly connected to one end of the left shell in a sleeving mode, a coil spring is arranged inthe lower cover, and a shaft rod is fixedly connected to the center of the coil spring; and the surface of the shaft rod is sleeved with a lower bearing, the left shell and the right shell of the scroll winding and unwinding device for advertising design have the automatic scroll winding and unwinding function, so that the scroll winding and unwinding device for advertising design is small in occupied space and convenient to carry and move, the scroll can be kept in a tensioned state all the time through the winding and unwinding elastic force of the coil spring in the display process, the scroll content can be conveniently displayed, a user can conveniently and rapidly complete assembling between the scroll and the left shell and between the scroll and the right shell through the shaft rod and an anti-disengaging strip, different scrolls can be conveniently replaced, and the use convenience of the scroll winding and unwinding device is improved.
Owner:WUHAN TECHN COLLEGE OF COMM

Lifting hook and crane provided with same

The invention belongs to the field of machine manufacturing of cranes, and particularly relates to a lifting hook and a crane provided with the lifting hook. The lifting hook is characterized in that a groove is formed in a lower position, relative to a baffle installation base, of a lifting hook body; the lifting hook further comprises a baffle which consists of a pivot end and a free end, wherein the pivot end is pivoted with the baffle installation base, the pivot end is hollow and is internally provided with parallel channels, a backstop bump is arranged at an opening of each channel, and at least one spring is arranged at the pivot end close to the baffle installation base; one end of the free end is sleeved with the pivot end and is connected with the springs, locking baffles are arranged on both sides of the free end and are matched with the parallel channels, and a through hole is formed in the other end of the free end; a slot is formed outside the hook part of the lifting hook body and is matched with the through hole in the free end. The lifting hook provided by the invention has the advantages that the lifting hook is novel in concept and compact and reasonable in structure, and the free end of the baffle can slide in the pivot end; the baffle has the anti-skid function; a lifting rope is convenient to be hoisted into the lifting hook or taken from the lifting hook, so that the time and labor are saved, and the work efficiency is improved.
Owner:ANHUI TECHN COLLEGE OF MECHANICAL & ELECTRICAL ENG

Ultra-thin glass bracket

The invention discloses an ultra-thin glass bracket used for stacking ultra-thin glass of 0.33 mm-2 mm. The bracket comprises a base, a detachable movable frame, rotatable frames, lower positioning rods, top positioning rods, pressing plates and locking blocks. One side of the base is fixedly connected with a backrest, and the other side of the base is provided with the movable frame. The backrest and the movable frame are equal in height. The top of the backrest and the top of the movable frame are fixedly connected through the two top positioning rods, and the two sides of the backrest and the two sides of the movable frame are all provided with the rotatable frames. Concealed buttons are arranged on the lower portions of the outer sides of the rotatable frames. The bottom of the backrest and the bottom of the movable frame are connected through the two lower positioning rods arranged in the concealed buttons. Two vertical supporting beams are welded into the movable frame and provided with the locking blocks with handles. The locking blocks are connected with the pressing plates through transmission levers to fix the glass inside the bracket. The ultra-thin glass bracket is reasonable in structural design, comprehensive in function, safe, convenient and easy to use and high in generality of all parts.
Owner:BENGBU TRIUMPH ENG TECH CO LTD

Wafer adsorption device with anti-falling function

The invention relates to a wafer adsorption device with an anti-falling function. The wafer adsorption device comprises a connecting pipe and a suction nozzle, wherein the connecting pipe is vertically arranged; the suction nozzle is arranged at the bottom end of the connecting pipe; an executing mechanism and an auxiliary mechanism are arranged on the connecting pipe; the executing mechanism comprises an executing assembly and two locking assemblies, the executing assembly is arranged in the connecting pipe, and the two locking assemblies are evenly distributed in a circumferential directionwith the axis of the connecting pipe as a center; the executing assembly comprises a magnet disc, a first electromagnet, a connecting rod, a supporting ring, an auxiliary block and two first springs;and each locking assembly comprises a guide hole, a moving rod, a second spring, a rolling wheel and at least two second electromagnets. According to the wafer adsorption device with the anti-fallingfunction, the function that the suction nozzle adsorbs the wafer is achieved through the executing mechanism; in addition, the situation that the wafer falls off from the suction nozzle due to too large wind resistance in the process that the suction nozzle drives the wafer to move can be prevented through the auxiliary mechanism, so the stability of the device is improved.
Owner:江苏直播时代科技有限公司

Novel walking aid for orthopedics nursing

The invention discloses a novel walking aid for orthopedics nursing, and belongs to the technical field of medical apparatus and instruments. An upper main rod is fixedly connected to a lower main rodthrough vertical rods; the surface of the upper main rod is provided with through holes, and the through holes slidingly sleeve supporting rods; one ends of the supporting rods are slidingly sleevedby sleeve rods, and the surfaces of the sleeve rods are provided with external threads; the supporting rods are connected to upper nuts and lower nuts through the threads; the other ends of the supporting rods are fixedly connected to supporting blocks; and the surface of the lower main rod is fixedly sleeved by non-slip coats. The walking aid is provided with the supporting blocks, so that the walking aid can be supported under the armpits of a patient, therefore, the needs for the strength of arms required when the patient uses the walking aid can be reduced, and the use safety of the walking aid can be enhanced; the supporting rods connected with the supporting blocks, the supporting heights of the supporting blocks can be adjusted to move up and down, so that the application ranges ofthe walking aid can be increased; and non-slip pads can be rapidly removed from the lower ends of supporting legs through arranged connectors, so that convenient changing of the non-slip pads can be realized.
Owner:司佳亚

Thumb wheel device capable of preventing dialing wheel from dropping

The invention discloses a thumb wheel device capable of preventing a dialing wheel from dropping, which comprises a potentiometer with a switch, a panel, a dialing wheel, locking screws, a locking plate, fastening screws and a chassis, wherein the potentiometer with a switch is arranged on the side wall of the chassis by the fastening screws, a rotating shaft of a semicircular section of the potentiometer with the switch is used for being inserted into an inner semicircular hole at the center of the dialing wheel, the shaft is tightly locked with the dialing wheel through the locking screws, the locking plate is fixed to the dialing plate by fastening screws, the panel is provided with a slot, and the locking plate is embedded in the slot so as to prevent the dialing wheel from dropping from the rotating shaft of the potentiometer with the switch. According to the invention, the dropping problem of the dialing wheel of the thumb wheel device can be favorably solved, and the safe and reliable application of the thumb wheel device can be ensured. The thumb wheel device is suitable for controller products with harsh requirements to the dimension of the panel.
Owner:CHINESE AERONAUTICAL RADIO ELECTRONICS RES INST

Cable winding device with cable cutting-off function

The invention discloses a cable winding device with a cable cutting-off function, and belongs to the technical field of electric devices. The cable winding device is characterized in that a supportingplate is fixedly connected to the surface of a bottom plate, a winding wheel is rotatably connected to the side surface of the supporting plate, the surface of the winding wheel is bundled with a cable, a fixing plate is fixedly connected to the surface of the bottom plate, a connecting rod is slidably connected to the side surface of the fixing plate, an extruding roller is rotatably arranged atthe surface of the connecting rod in a sleeving mode, and an adjusting hole is formed in one end surface of the fixing plate. A shearing seat arranged by the cable winding device with the cable cutting-off function has the function of horizontal movement, winding and unwinding of the cable cannot be influenced, and a motor and a cutting piece are arranged, so that a worker can easily and quicklycut the cable off, the arranged extruding roller has the function of moving up and down, the cable can be extruded, cutting-off of the cutting piece is facilitated, guiding can be carried out when thecable is wound and unwound, and the use convenience of the cable winding device is improved.
Owner:STATE GRID SHANDONG ELECTRIC POWER CO LONGKOU POWER SUPPLY CO

Oral cavity spray-washing equipment

The invention discloses oral cavity spray-washing equipment, and belongs to the technical field of medical instruments. One end of a storage bottle is fixedly connected with a connecting part; the surface of the connecting part is in threaded connection with a sealing cover; the inner wall of the sealing cover is divided into a sealing groove and a transfer groove through a partition plate; a liquid suction pipe is fixedly connected to the centre of one surface of the partition plate; the side surface of the transfer tank is fixedly sleeved with a liquid outlet pipe; one end of the liquid outlet pipe is provided with a short pipe; the surface of the short pipe is sleeved with a spray-washing pipe in a sealed mode; one end of the spray-washing pipe is provided with a sealing part; and the inner wall of the sealing part is fixedly sleeved with a sealing sleeve. The spray-washing pipe of the oral cavity spray-washing equipment has a function of rotationally adjusting the spray-washing angle, and is convenient to disassemble and disinfect; furthermore, the storage bottle and the sealing cover are arranged, so that the medical staff can quickly and accurately add oral cavity cleaning liquid medicine conveniently; the storage bottle is convenient for the medical staff to directly extrude and spray the oral cavity cleaning liquid medicine; and the use convenience of the oral cavity spray-washing equipment is greatly improved.
Owner:王丽丽

Mounting device for hanging type 120-type air control valve

ActiveCN113428126AImprove rainwater corrosion resistanceExtended maintenance cycleAerodynamic brakesPiping arrangementsControl valvesChassis
The invention discloses a mounting device for a hanging type 120-type air control valve. The device comprises a mounting seat which comprises a lifting plate, an outer side plate and an inner side plate, the lifting plate, the outer side plate and the inner side plate are connected to form a U shape, the lower end of the mounting seat and a chassis of a vehicle form a floor, the lifting plate is used for mounting the hanging type 120-type air control valve, a first opening is formed in the inner side plate, and two sides of the mounting seat are open; the device further comprises a front protective cover and a rear protective cover which are detachably connected with the mounting seat, wherein the front protective cover and the rear protective cover can block the two open sides of the mounting seat respectively, and clamping hook structures are arranged on the front protective cover and the rear protective cover; the device further comprises locking mechanisms which are arranged on the two sides of the mounting seat, the locking mechanisms are matched with the clamping hook structures, the locking mechanisms can lock the clamping hook structures, and the front protective cover and the rear protective cover are fixed to the mounting seat; the mounting seat, the detachable front protective cover and the detachable rear protective cover are adopted to form a mounting and protecting structure, so that reliable mounting of the hanging type 120-type air control valve can be guaranteed, and the hanging type 120-type air control valve can be conveniently disassembled.
Owner:CRRC TAIYUAN CO LTD

A kind of ultra-thin glass bracket

The invention discloses an ultra-thin glass bracket used for stacking ultra-thin glass of 0.33 mm-2 mm. The bracket comprises a base, a detachable movable frame, rotatable frames, lower positioning rods, top positioning rods, pressing plates and locking blocks. One side of the base is fixedly connected with a backrest, and the other side of the base is provided with the movable frame. The backrest and the movable frame are equal in height. The top of the backrest and the top of the movable frame are fixedly connected through the two top positioning rods, and the two sides of the backrest and the two sides of the movable frame are all provided with the rotatable frames. Concealed buttons are arranged on the lower portions of the outer sides of the rotatable frames. The bottom of the backrest and the bottom of the movable frame are connected through the two lower positioning rods arranged in the concealed buttons. Two vertical supporting beams are welded into the movable frame and provided with the locking blocks with handles. The locking blocks are connected with the pressing plates through transmission levers to fix the glass inside the bracket. The ultra-thin glass bracket is reasonable in structural design, comprehensive in function, safe, convenient and easy to use and high in generality of all parts.
Owner:BENGBU TRIUMPH ENG TECH CO LTD

A new anti-hand brake lever for railway wagons

The invention discloses a novel hand-slip preventive brake pull rod for a railway truck. The novel hand-slip preventive brake pull rod comprises a hand-slip preventive guide frame, a pull rod head and a pull rod. Guide grooves are formed in the hand-slip preventive frame along the vertical direction of the hand-slip preventive frame, a carrier roll is arranged on the lower portion of the hand-slip preventive frame, a hand-slip preventive groove is formed in the pull rod head along the horizontal direction of the pull rod head, the pull rod head is arranged on the carrier roll and is connected with the hand-slip preventive guide frame by a hand-slip preventive pin which penetrates the guide grooves and the hand-slip preventive groove, and an end of the pull rod is fixedly connected with a tail groove of the pull rod head. The novel hand-slip preventive brake pull rod has the advantages that problems of clamping stagnation due to the fact that an existing hand brake pull rod for a railway truck slips out of an existing carrier roll at a sudden sectional change position of round steel and breakage of the existing hand brake pull rod due to fatigue and stress concentration at a sectional sudden change position of the tail of the existing hand brake pull rod can be effectively solved by the aid of the novel hand-slip preventive brake pull rod; the pull rod head still can be fixed onto the hand-slip preventive guide frame by the aid of the hand-slip preventive pin even if the tail of the pull rod is accidentally broken, a rod body of the integral pull rod head can be supported by the carrier roll without falling off, and accordingly the driving safety can be guaranteed.
Owner:CRRC MEISHAN

Novel bamboo flute diaphragm protection equipment

The invention discloses a novel bamboo flute diaphragm protection equipment, belonging to the technical field of musical instruments. According to the invention, one end of a bamboo flute is provided with a through hole; the surface of the bamboo flute is provided with a blow hole, sound holes and a diaphragm hole which communicate with the through hole; an opening of one end of the diaphragm hole is covered with a flute diaphragm; the surface of the bamboo flute is in contact connection with a main protective sleeve body; one end of the main protective sleeve body is provided with a first fixing end; the end face of the first fixing end is fixedly connected with a hanging ring; and the other end of the main protective sleeve body is provided with a second fixing end. According to the novel bamboo flute diaphragm protection equipment, the flute diaphragm is prevented from being in contact with the outside through the arranged main protective sleeve body, so the flute diaphragm is protected from being damaged; the connection stability between the flute diaphragm and the diaphragm hole can be improved through an arranged pressing ring; the use condition of the flute diaphragm can be conveniently observed through an arranged transparent plate; a protective sleeve can be conveniently assembled and disassembled through an arranged hook and the arranged hanging ring, so the flute diaphragm cannot be damaged when the protective sleeve is disassembled, and use safety and convenience are improved.
Owner:SHANGLUO UNIV

Crease roller for ink-free crease exercise book production

The invention discloses a crease roller for ink-free crease exercise book production, and belongs to the technical field of exercise book production devices. A mounting base is fastened to the side face of the lower end of a rack through screws, one side face of the mounting base is rotationally connected with a shaft rod through a bearing, one end of the shaft rod is fixedly connected with a crease concave roller, a groove is formed in the surface of the crease concave roller, a transverse rod is connected to the side face of one end of the rack in a sleeved mode, a conveying roller rotationally sleeves the surface of the transverse rod, and a clamping base is connected to the surface of the transverse rod in a clamped mode. According to the crease roller for ink-free crease exercise book production, a rotating angle adjusting function is achieved between a supporting plate and the transverse rod, therefore, the function of rapidly adjusting a gap between a crease convex roller and the crease concave roller is achieved, the crease roller can be suitable for crease folding of paper of different thicknesses, the application range of the crease roller is greatly widened, the crease convex roller, the crease concave roller and a conveying roller can be independently detached from the rack, and the later maintenance efficiency is greatly improved.
Owner:丽水市新时代教育印刷有限公司

High-voltage isolating switch with anti-falling function and method

The invention provides a high-voltage isolation switch with an anti-falling function and a method, and relates to the technical field of high-voltage electrics. The technical problem that the static contact plate and the movable contact plate of the high-voltage isolation switch are not easy to combine when needing to be combined is solved. According to the technical scheme, the high-voltage isolating switch comprises a base, the base is provided with a linear manual operation structure, the base is provided with an anti-falling structure, the anti-falling structure is connected with the linear manual operation structure, the linear manual operation structure is provided with a reset structure, the reset structure is connected with the base, and the linear manual operation structure is provided with a high-voltage isolating switch assembly. The operation method comprises the following steps that firstly, the base is installed, the square frame is arranged on the outer side of the connecting rod in a sleeving mode, the manual driving rod is pulled downwards, and the manual driving rod drives the connecting rod to move downwards through the square frame; vertical operation is carried out during merging, actual operation is facilitated, the operation difficulty is reduced, and merging is facilitated.
Owner:STATE GRID JIANGSU ELECTRIC POWER CO LTD NANTONG POWER SUPPLY BRANCH
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