31results about How to "With locking effect" patented technology

The invention belongs to the field of motor production equipment, in particular to a multi-station shaft compressing machine used for performing piece twisting and compression on a rotor. The multi-station shaft compressing machine comprises a bearing support and is characterized in that a working platform is disposed on the support, a multi-station rotary platform is disposed on the working platform, a mounting support is further disposed on the working platform, a pressure device for riveting the rotor is disposed on the mounting support and located above the rotary platform, and a hydraulic unit for powering the pressure device is further disposed above the support. The multi-station shaft compressing machine further comprises a power device which is disposed on the support and connected with the multi-station rotary platform. The multi-station shaft compressing machine is capable of performing twisting on the steel pieces of the motor rotor so as to satisfy various chute rates of design and performing riveting fixation and automatic discharge on the steel pieces after the twisting.

The invention discloses a 360-degree hinge and a mobile terminal. The hinge comprises a hinge mechanism, and the hinge mechanism comprises eight outer wrapping steel bars which are horizontally arranged; four synchronous folding mechanisms for realizing smooth synchronous rotation of the terminal shell at 0-360 degrees and performing constant-length supporting on the flexible screen in cooperationwith the first back glue plate are mounted on the inner sides of the eight outer wrapping steel bars; the damping mechanism is provided with a guide mechanism used for conducting folding distance compensation on a gum base plate of the hinge mechanism and providing the hinge rotation damping effect when the hinge rotates, and the guide mechanism is provided with a connecting end used for being connected with a terminal shell. The hinge structure disclosed by the invention is simple in structure, relatively low in manufacturing cost and relatively long in service life, so that the hinge structure can be better adapted to various mobile terminals (mobile phones, laptops, tablet personal computers and the like) or other terminals with folding display requirements, and is relatively good in adaptability.

The invention discloses an anti-loosening mechanism for a quick release component. The anti-loosening mechanism is mounted between an upper wrench and an upper cover plate of the quick release component; the quick release component comprises a lower cover plate, a bolt and a rotary shaft, wherein the lower cover plate is fixedly connected with one side of the upper cover plate in a rotating manner; the bolt movably penetrates through the other sides of the upper and lower cover plates to be screwed by a nut; the rotary shaft movably passes through the root part of the bolt; a pair of support legs in U-shape are formed at the end parts of the wrench; the end parts of the pair of support legs are sleeved on the two ends of the rotary shaft; the end parts of the support legs are provided with eccentric edges respectively; the anti-loosening mechanism comprises an anti-loosening wrench positioned in the U-shaped opening; the anti-loosening wrench forms a pair of anti-loosening support legs side by side; the end parts of the pair of anti-loosening support legs are rotationally fixed on the upper cover plate through an anti-loosening fixed rotary shaft; a clamping shaft is fixedly arranged between the support legs in a penetrating manner; the anti-loosening wrench is provided with a clamping slot for the clamping shaft to be buckled, corresponding to the clamping shaft. The anti-loosening mechanism for the quick release component can effectively prevent the quick release component from loosening when the wrench is clamped, and also can facilitate the opening of the quick release component.

The invention discloses an anti-seismic signal tower capable of realizing illumination, provided with a photovoltaic structure and used for communication. The anti-seismic signal tower comprises a tower body and an wind discharging plate; a tower footing is fixedly welded to the bottom end of the tower body, and a settling disc is arranged inside the lower portion of the tower body; the settling disc and the tower body are in injection molding connection, a reinforcing bottom frame is mounted in the middle of the tower body, and the reinforcing bottom frame and the tower body are fixedly welded; and an inclined rod and a climbing frame are fixed to the side edges of the reinforcing bottom frame correspondingly and arranged in a spaced mode, ventilating nets are mounted on the left and right sides of the surface of the wind discharging plate in an embedded mode correspondingly, and the wind discharging plate is located on the outer side of the inclined rod. According to the anti-seismicsignal tower capable of realizing illumination, provided with the photovoltaic structure and used for communication, by arranging the wind discharging plate, the reinforcing bottom frame has the winddischarging ability, the wind discharging plate is of a curved surface structure with the double inwards-concave surfaces and can alleviate wind impact, and after being subjected to the wind action,the wind discharging plate rotates obliquely on the basis of the inclined rod to alleviate the wind action.

The invention discloses a glass board carrying frame. The glass board carrying frame comprises a base, a vertical support mounted on the base and a plurality of movable flat plates hinged to the vertical support. The movable flat plates are arranged in the height direction in a layered mode. The topmost flat plate also has a cover plate function to protect a glass board against scratches, and the top faces of the other movable flat plates are used for stacking of the glass boards. The free ends of the movable flat plates are provided with a plurality of downwards supporting columns used for supporting the movable flat plates layer by layer. Besides the base and the topmost movable flat plate, the other movable flat plates are provided with a plurality of locating grooves. When the movable flat plates are located in a horizontal state, the supporting columns on the movable flat plates can be inserted into the corresponding locating grooves to achieve located supporting. The glass board carrying frame has the beneficial effects that the glass boards can be stacked on the different movable flat plates in a layered mode; each layer of the movable flat plate achieves overturning through a pin shaft to meet the requirements for picking and stacking the glass board; and the glass boards are effectively protected against contamination and damage, and the yield is improved.

The invention discloses a locking device applied to a window. The locking device applied to the window comprises a working block; driving space is formed in the working block; a rotating groove whoseright end wall communicates with the driving space is formed in a rotating shaft; a trapezoidal locking groove whose upper end wall communicates with the rotating groove is formed in a slide block; return space is formed in the upper end wall of the rotating groove; pushing space whose left end wall communicates with transmission space is formed in the lower end wall of the driving space; a trapezoidal blockage groove whose lower end wall communicates with the pushing space is formed in the upper end wall of the pushing space; and a second spring groove whose upper end wall communicates with the pushing space is formed in a push rod at the lower end of the trapezoidal blockage groove. The device is simple in mechanism and convenient for operation, can adjust the window opening degree according to actual conditions in the opening and closing process, achieves a locking effect, can realize automatic locking after closing of the window, and achieves high stability and higher practicability.

The invention discloses an intelligent nursing device for psychiatric nursing, and mainly relates to the field of psychiatric restraint tools. The nursing device comprises a restraint ring, a rotatingring, a restraint rod and an air bag, wherein the restraint ring and the rotating ring are rotationally connected on a circumferential end face; sliding blocks which are in sliding fit in the axial direction of the restraint ring are arranged on the inner wall of the restraint ring; first ball joint seats are arranged on the sliding blocks; second ball joint seats with the same number as the sliding blocks are arrayed on the inner wall of the rotating ring in the circumferential direction; the two ends of the restraint rod are matched with the first ball joint seats and the second ball jointseats respectively; the air bag is fixed to an inner ring of the restraint ring; inflation and deflation of the air bag are achieved through a medical air source; a pulse detection piece is fixed to the air bag; the pulse detection piece is in signal connection with a stepping motor; and the stepping motor is triggered to be started by setting a lower limit threshold value of the heart rate. The nursing device has the beneficial effects that the locking is timely, constraint is fast, the four-limb behavior of a patient in a mania state is fast responded and constrained, limitation is reliableand safe, and the injury to the patient is greatly reduced.

The invention discloses an ice machine for a refrigerator and the refrigerator with the ice machine. The ice machine comprises an ice machine body, an ice cube tray and an ice storage box. Elastic protrusions are arranged on the inner wall face of the left side wall and / or the inner wall face of the right side wall of the ice machine body, the ice cube tray is arranged in the ice machine body, the ice storage box is arranged inside the ice machine body in a drawing mode and is located below the ice cube tray, protruding block structures are arranged on the outer wall face of the left side wall and / or the outer wall face of the right side wall of the ice storage box, and concave portions are formed on the protruding block structures. According to the ice machine, the ice storage box is convenient to draw, when the ice storage box is contained in the ice machine, the elastic protrusions can limit the ice storage box well, the ice storage box is prevented from swinging and shocking, a certain locking function on the ice storage box is achieved, the situation that the ice storage box generates high noise due to collision, vibration and the like in the process of transporting and using the refrigerator with the ice machine is avoided, and meanwhile the ice storage box is prevented from falling off.

The invention relates to a labyrinth seal structure used for a bearing pedestal. The bearing pedestal is used for rotation movement of a main shaft. The labyrinth seal structure comprises a movable ring, an oil scraper plate and a labyrinth static ring; the movable ring is fixed to the main shaft; the oil scraper plate is fixed to the peripheral face of the movable ring; a sealing lip is arranged on one side of the movable ring; the sealing lip and the oil scraper plate abut against the outer surface of an outer blocking ring of the bearing pedestal; the oil scraper plate is fixed to the movable ring; the labyrinth static ring is fixed to the outer blocking ring of the bearing pedestal and internally provided with a static ring isolation tooth; and an oil drain hole is formed in the lower end of the labyrinth static ring. The airtightness of the labyrinth seal structure is improved, and the situation that much lubricating grease inside the bearing pedestal is leaked so as to affect normal operation of the bearing pedestal is prevented; as the static ring isolation tooth is arranged inside the labyrinth static ring, direct overflowing of the grease from the static ring is further avoided, the grease is not thrown around along with the shaft, and cleanliness of a machine body is ensured; and the oil drain hole can drain a small amount of leaked grease to an oil collection box, so that the functions of directional collection and recycling are achieved.

The invention discloses a universal-angle lorry-mounted crane telescopic boom, and belongs to the field of lorry-mounted hoisting. The universal-angle lorry-mounted crane telescopic boom comprises a main boom main body and a telescopic assembly, the telescopic assembly is mounted on the main boom main body, the telescopic assembly is suitable for moving in the extension direction along the axis of the main boom main body, a hand pulling arm is mounted on the side, back to the main boom main body, of the telescopic assembly, the hand pulling arm is detachably connected with the telescopic assembly, a rotating arm is installed on the side, back to the telescopic assembly, of the hand pulling arm, a center hole and circumferential holes are formed in the rotating arm, a positioning hole is formed in the telescopic assembly, and the center hole and the circumferential holes are suitable for installation of positioning pieces and penetrate through the positioning hole to be locked, multiple sets of circumferential holes are formed; and the multiple sets of circumferential holes are suitable for being distributed in the circumferential direction of the center of the center hole and are suitable for being detachably connected with the positioning piece and rotationally adjusting the rotating arm. The technical problems that the rotating arm cannot be adjusted at multiple angles to adapt to different working environments, and the angle needs to be completely detached and adjusted can be solved.

The invention discloses an automatic angle adjusting and self-locking structure of a photovoltaic support, and belongs to the technical field of photovoltaic power generation. Comprising a base, a main support, an auxiliary support and a lifting device. A main support is rotationally mounted at the upper end of the main bracket, and a mounting plate is fixed on the main support; a guide slide rail is fixed at one end of the mounting plate, a roller is slidably mounted on the guide slide rail, and the upper end of the lifting device is connected with the roller; a row of sliding rods are hinged to the mounting plate far away from the guide sliding rails; a rotating shaft is rotationally mounted at the upper end of the auxiliary support and provided with radial through holes in one-to-one correspondence with the sliding rods, and the sliding rods are mounted in the corresponding radial through holes of the rotating shaft in a sliding fit mode; and a locker is arranged between one end of the rotating shaft and the auxiliary support. The inclination angle of the mounting plate is adjusted through the lifting device, the lifting device is provided with a displacement sensor, and the actual inclination angle of the mounting plate can be determined and adjusted; locking of the mounting plate is achieved through the locker, the lifting device and the auxiliary support are arranged on the two sides of the main support and both have the locking effect, and the stability of the mounting plate is improved.

The invention relates to a locknut shim insert combination external member which comprises a nut body. The external member is structurally characterized by also being provided with a gasket body, wherein the gasket body is provided with a flange insetting body; the nut body is provided with a nut groove and an axial protruding body; the flange insetting body is embedded in the nut groove; and the gasket body is covered on the axial protruding body. The external member provided by the invention has the advantages of reasonable and simple structure design, good anti-loosing effect, long service life, safety and reliability; and the thread is free from being damaged.

The invention relates to a chuck for remedial work, in particular to a rotary chuck for remedial work, and the rotary chuck solves the technical problems that an existing remedial work anti-jacking chuck and an existing remedial work anti-dropping chuck cannot meet rotary operation requirements of screw-off on under-pressure remedial work, a conventional remedial work grinding and milling process,and the like while not rotating along with an oil tube or a down-hole tool cannot rotate along with the oil tube. According to the technical scheme adopted by the invention, the rotary chuck for remedial work comprises a middle through housing which is formed by connecting an upper flange, a middle housing and a lower flange in series, wherein an upper rotary body, at least two dovetail-shaped guide keys, a blocking tile body assembly, a lower rotary body and a piston are sequentially arranged in the housing from top to bottom; the upper rotary body is supported on the upper flange through abearing; the dovetail-shaped guide keys are fixedly arranged on the inner conical surface of the upper rotary body; the blocking tile body assembly is in sliding connection to the dovetail-shaped guide keys; the blocking tile body assembly is placed on the lower rotary body; and the lower rotary body is supported on the piston through a bearing.

The invention discloses a cold-proof glove used during cycling in winter. The cold-proof glove comprises a fixed cotton cover, a windproof cotton cover, a first elastic cloth, a tightening bar, a buckle, a sealing cover, a bayonet, a cotton glove body, a second elastic cloth, an adjusting mechanism, a clasp, a spring, a catch, a pull rod, a thin hose, and an outer sleeve. The cold-proof glove hasthe beneficial effects that a ring whose diameter is the same as that of the thin hose is arranged at the inner end of the outer sleeve, a disk whose diameter is the same as that of the outer sleeve is arranged at one end of the thin hose, so that the thin hose does not disengage while moving in the outer sleeve, and accordingly, the cotton glove body is effectively prevented from disengaging fromthe windproof cotton cover; the two ends of the spring are fixedly connected with the catch and the inner side wall of the clasp respectively, and the pull rod passes through the clasp to form a liveconnection structure with the clasp, so that the pull rod can never be pulled out of the clasp, and when the pull rod is released, the pull rod will not be separated from the clasp due to the limitation of the spring.

The invention relates to a detachable quick connecting device. The detachable quick connecting device comprises a connecting part, an elastic locking plate and an unlocking part, wherein one part of the elastic locking plate is fixed on a mounting main body; a hole for allowing the connecting part to pass through is formed in the mounting main body; the end part, extending out of the outer surface of the mounting main body, of the connecting part is equipped with a limiting structure; the bottom and / or the top of a mounted product are / is equipped with blocking slots adaptive to the limiting structure; an inclined slot is formed in the connecting part; the inclined slot comprises a first slot hole and a second slot hole; the first slot hole is positioned in the end side surface, extending out of the outer surface of the mounting main body, of the connecting part; the second slot hole is positioned in the surface, close to the elastic locking plate, of the connecting part; when the other part of the elastic locking plate extends into the inclined slot from the second slot hole and abuts against the inclined slot, the locking purpose is realized; and when the unlocking part extends into the inclined slot from the first slot hole and pushes part of the elastic locking plate out of the inclined slot, the unlocking purpose is realized. The detachable quick connecting device has the following expectable technical effects that: the structure is detachable, accessories can be dismounted and replaced freely, and a recycling rate is high.

The invention discloses a special self-locking lifting appliance for a steel structure. The special self-locking lifting appliance comprises a lifting appliance body, a fixing structure, a lifting locking mechanism and a pull rope, wherein the lifting appliance body comprises a connecting block and a first sleeve, an inserting hole and a connecting hole are formed in the connecting block, and a first sliding groove and a first locking groove which communicate with each other are formed in the side wall of the first sleeve; the fixing structure comprises a fixing bolt, a first pull rod and a first telescopic spring, and the fixing bolt is arranged in the first sleeve and is in sliding connection with the first sleeve; the lifting locking mechanism comprises a sliding block, a third telescopic spring and an extension block, the sliding block is in sliding connection with the connecting block, one end of the extension block is fixed to the sliding block, the other end of the extension block is provided with a first locking block, and the first locking block makes contact with the first pull rod; and the first pull rod is connected with the pull rope. According to the special self-locking lifting appliance for the steel structure, the risk that a constructor climbs up and down is avoided, meanwhile, the lifting locking mechanism has a locking effect on the fixing bolt, and then the phenomenon that the first pull rod is unhooked due to manual misoperation of the pull rope is avoided.

The invention discloses a special sling for a steel structure which is easy to disassemble, comprising: a sling body, a fixing structure, a locking structure and a pulling rope; There is an insertion hole on it, and the side wall of the first sleeve is provided with a first sliding slot and a first locking slot that communicate with each other; the fixing structure includes a fixed pin, a first pull rod and a first telescopic spring, and the fixed pin is connected to the first sleeve. The pipes are slidably connected, one end of the fixed bolt passes through the jack, and the other end of the first pull rod passes through the first lock slot; the locking structure includes a locking bolt and a second telescopic spring, and the locking bolt is slidably connected with the second sleeve, One end of the locking bolt is in contact with the first pull rod; the first pull rod and the locking bolt are respectively connected with the pull rope. The invention provides a special hanger for a steel structure that is easy to disassemble, which avoids the risk of construction personnel climbing up and down, and at the same time, the locking structure has a locking effect on the fixed bolt to form an insurance effect.

The invention discloses an anti-theft device for a solar cell panel, and an anti-theft method thereof, and belongs to the technical field of solar cell panel theft prevention. The anti-theft device for the solar cell panel comprises a base, a first threaded hole is formed in the base, a first bolt is in threaded connection with the interior of the first threaded hole, an alarm mechanism is arranged in the first threaded hole, and a contact plate matched with the alarm mechanism is fixedly connected to the outer wall of the first bolt. A supporting rod is fixedly connected to the top of the base, a connecting plate is fixedly connected to the top of the supporting rod, an outer frame is fixedly connected to the top of the connecting plate, a solar cell panel body is fixedly connected to the outer frame, a connecting box is fixedly connected to the bottom of the outer frame, and a locking mechanism is arranged in the connecting box. The device can give an alarm in time when the device is stolen, and can lock the solar cell panel body in the stealing process, thereby reducing the probability that the solar cell panel body is stolen.

The invention provides a rotary-extrusion-type intelligent tourniquet. The rotary-extrusion-type intelligent tourniquet comprises a display and main control unit, a force application and unloading unit, a sensor and power supply unit and a wear unit. An LCD display module and a main control circuit board are arranged inside a shell body of the display and main control unit, and function buttons are arranged at the outer side of the shell body. The force application and unloading unit mainly comprises a ratchet handle and a base, an unhooking turn block and a synchronous limiting block are arranged at one side of the handle, and a twisting rope sleeve is arranged in an upper chamber of the base. The sensor and power supply unit mainly comprises a pressure sensor module, a pulse sensor module and a power supply module. The wear unit mainly comprises a twisting rope, a bandage, a sticky hook integrated hook & loop fastener and a stretching band. The rotary-extrusion-type intelligent tourniquet can act on four limbs of a wounded person, and the functions of real-time displaying of a bleeding arresting pressure size and distal-end pulse strength, automatic-timing displaying of buttons and locking of a force application process, and the like are achieved; and unhooking is simple and convenient, so that portability and reliability are guaranteed, and meanwhile, the wounded person or medical personnel is assisted to more correctly and effectively implement bleeding arresting first-aid.

The invention discloses a ball bearing with a sealing ring. The ball baring comprises an inner ring, an outer ring, a roll ball, a holder and a sealing ring and is characterized in that the outer ring is provided with a sealing groove I, the inner ring is provided with multiple stepped arc-shaped sealing grooves II, and the top end of the sealing ring is arranged in the sealing groove I; multiple sealing lips with different heights are extended from the bottom end of the sealing ring, the multiple sealing lips are respectively and correspondingly arranged in the arc-shaped sealing grooves II of the inner ring, the sealing slip on the outer side is in interference fit with the corresponding arc-shaped sealing grooves II, and fit clearances between the other sealing lips and the arc-shaped sealing grooves II increase successively from outside to inside. The ball bearing with the sealing ring is good in sealing effect, long in service life of bearing, and easy to install.

The invention belongs to the technical field of injection molds, and particularly relates to an integrated lifting ring bottle blank forming mold which comprises a front mold frame and a rear mold frame. The front mold frame is sequentially provided with an injection plate, first forming plates and second forming plates. First cavities are formed in the side ends, close to each other, of the two first forming plates, and lifting ring forming cavities are formed between the first cavities and the injection plate during mold closing. The injection plate is provided with an injection port communicating with the lifting ring forming cavities. The second forming plates are provided with second forming cavities, and the second cavities communicate with the first cavities. The rear mold frame isprovided with two third forming plates. Third cavity pieces are arranged on the two third forming plates. A third cavity is formed between the two third cavity pieces when the two third cavity piecesare close to each other, and a mold core is arranged in the third cavity. The second cavities are provided with third conical grooves. Third conical parts are arranged at the same ends of the two third cavity pieces. The two third cavity pieces are close to each other during mold closing, the two third conical parts are contained in the third conical grooves in a matched mode, and a bottle blank body forming cavity is formed among the second cavities, the third cavity and the mold core.

The invention belongs to the field of electrical contact and relates to a lockable large current pin jack assembly. A lockable high current pin socket assembly of the present invention includes a socket with an annular projection and a pin with an annular slot. The needle end of the pin is provided with an annular groove, the left side surface of the groove and the right side surface of the grooveare conical surfaces; The insertion end of the insertion hole of the invention is slotted to open the insertion end of the insertion hole into n lobes, and the inner hole of the insertion end is provided with an inward annular protrusion, which is in contact with the annular groove arranged on the pin head to form the contact of the conical surface of the 2n lobes. When the socket assembly of theinvention is in use, the socket and the pin are inserted into the position to have a feeling of hand and have a locking function; and when the socket assembly of the invention is in use, the socket and the pin are inserted into the position. The inner hole of the socket is provided with an inward annular protrusion, which is in contact with the outer diameter annular groove arranged on the pin head to form surface contact, has large contact area and strong through-load capacity, solves the problem of large current load, and is suitable for operation of narrow space due to short separation distance when pulling out.

The invention discloses a special lifting appliance convenient to disassemble for a steel structure. The special lifting appliance comprises a lifting appliance body, a fixing structure, a locking structure and a pull rope, the lifting appliance body comprises a connecting block, a first sleeve and a second sleeve, the connecting block is provided with an insertion hole, and the side wall of the first sleeve is provided with a first sliding groove and a first locking groove which communicate with each other; The fixing structure comprises a fixing bolt, a first pull rod and a first telescopic spring, the fixing bolt is slidably connected with the first sleeve, one end of the fixing bolt penetrates through the insertion hole, and the other end of the first pull rod penetrates through the first locking groove. The locking structure comprises a locking bolt and a second telescopic spring, the locking bolt is in sliding connection with the second sleeve, and one end of the locking bolt is in contact with the first pull rod. The first pull rod and the locking bolt are respectively connected with the pull rope. The special lifting appliance for the steel structure is convenient to disassemble, the risk that constructors climb up and down is avoided, and meanwhile, the locking structure has a locking effect on the fixing bolt, so that a safety effect is achieved.

The invention relates to a movement mechanism on a machine tool, in particular to a Y-axis mechanism of a turning and milling composite machine tool. The Y-axis mechanism of the turning and milling composite machine tool comprises a Y-axis upright post and a knife rest, wherein the Y-axis upright post is vertically and fixedly arranged on an X-axis sliding plate. The Y-axis mechanism of the turning and milling composite machine tool is characterized in that a Y-axis sliding plate capable of sliding in the Y direction is arranged on the left side of the Y-axis upright post; a knife rest is arranged on the Y-axis sliding plate; a vertical auxiliary guide rail is further arranged on the X-axis sliding plate; the left side of the knife rest is slidably connected with the auxiliary guide rail;and a locking oil cylinder is arranged between the knife rest and the auxiliary guide rail. According to the Y-axis mechanism of the turning and milling composite machine tool provided by the invention, by means of the structure, the rigidity of the Y-axis sliding plate is improved, the Y-axis sliding plate and the knife rest are stressed well, the cutting performance is good, the anti-backlash effect can be achieved, and the precision of a machine tool is high.

The invention discloses a special self-locking spreader for steel structures, comprising: a spreader body, a fixing structure, a lifting lock mechanism and a pull rope. The spreader body includes a connecting block and a first sleeve, and the connecting block is provided with a jack and a connecting hole, the side wall of the first sleeve is provided with a first sliding groove and a first locking groove that communicate with each other; the fixing structure includes a fixed latch, a first pull rod and a first telescopic spring, and the fixed latch is arranged in the first sleeve and It is slidably connected with the first sleeve; the locking mechanism includes a sliding block, a third telescopic spring and an extension block, the sliding block is slidably connected with the connecting block, one end of the extension block is fixed with the sliding block, and the other end of the extension block is provided with a first locking The first locking block is in contact with the first pull rod; the first pull rod is connected with the pull rope. The invention provides a special self-locking hanger for steel structure, which avoids the risk of construction personnel climbing up and down, and the hanging lock mechanism has a locking effect on the fixed bolt, so that the first pull rod will not be unhooked due to human misoperation of the pull rope .

The invention discloses a fishing rod handle mechanism which comprises a handle part for a hand to grasp. The quick mounting mechanism comprises a central column located at the top of the handle part, a pressing ring and a sleeve cover; a plurality of through grooves and a plurality of blind grooves are annularly arrayed in the circumferential surface of the central column, and the blind grooves are only communicated with the same shaft end of the central column; a containing hole fixed to a fishing rod is formed in the axis of the center column. The pressing ring is provided with a through cavity for the central column to penetrate through, a plurality of convex ribs are annularly arrayed on the inner wall of the through cavity, and the convex ribs are selectively assembled with the through groove or the blind groove; the outer ring of the pressing ring is provided with a conical surface; and the sleeve cover is in contact with the outer ring of the pressing ring, applies thrust to the conical surface of the pressing ring, and is in threaded connection with the handle piece. The handle and the fishing rod can be disassembled and assembled through simple insertion and extraction and the small-angle rotary knob, the stability and the service life are high after assembly, and the handle is suitable for combination and replacement of multifunctional fishing rods and is low in disassembly and assembly difficulty and high in universality.

The invention discloses a novel plug connection structure. The novel plug connection structure comprises a plug, a cylindrical socket, at least two fixing claws used for limiting the main body on thesocket, and an annular ring which can move along the axial direction of the main body. Each fixing claw is provided with a horizontal part and a stretching part, wherein the horizontal part and the stretching part are successively arranged along the axial direction of the main body. Each horizontal part is fixedly connected with the side wall of the main body. Each stretching part tilts and extends outward in a direction away from the circumferential side of the main body. The annular ring sleeves the circumferential side of the main body. Each horizontal part is located between the inner wallof the annular ring and the circumferential side wall of the main body. Buckles which are buckled with the end parts of the stretching parts are arranged on the peripheral side wall of the socket. Compared with the prior art, the novel plug connection structure provided by the invention has the advantages of simple and convenient insertion process and good release effect.