1284 results about "Set screw" patented technology

The present disclosure provides for spinal implants configured for lateral insertion techniques deployable between a contracted position and an expanded position. The spinal implant may include a first endplate and a second endplate, each having a plurality of guide walls and inclined ramps. The spinal implant may further include a moving mechanism having first and second trolleys configured to act against the first and second plurality of ramps. The moving mechanism may further include a first set screw and a second set screw opposite the first set screw. The moving mechanism may be configured to operably adjust a spacing between the first and second endplates upon simultaneous rotation of the first and second set screws along a rotation axis, and may also operably adjust an angle of inclination between the first and second endplates upon rotating the first set screw or second set screw along the rotation axis.

The invention belongs to the technical field of valve maintenance, and particularly relates to a lifting device for a leakage guide ring of a nuclear island gate valve. The upper end of the supporting screw rod is arranged on a valve yoke frame, the lower end of the supporting screw rod is arranged on the drawing support, the drawing support is installed on a valve rod, the half-and-half type lifting nut is installed at the position of a threaded sleeve at the bottom end of the drawing support in a spliced mode and connected with the threaded sleeve through the set screw, and the half-and-half type lifting loop is connected to the lower end of the lifting nut in a hung mode. The lower end of the lifting screw rod is screwed into the original lifting hole and the new lifting hole of the leakage guiding ring, the height of the lifting loop is adjusted in a rotating mode, the upper end of the lifting screw rod is arranged in a screw hole of the lifting loop and is screwed and fixed through a nut, and the operating handle and the rotation preventing handle are arranged in the lifting nut and operating holes in the periphery of the lifting loop respectively. And the drawing bracket is fixed by connecting the original bolt hole of the valve with the supporting screw rod. On the premise of fully considering the limited operation space, the leakage guiding ring is efficiently detached, meanwhile, the complete effect of the leakage guiding ring is guaranteed, and the leakage guiding ring can be repeatedly used.

The invention relates to the technical field of meat drip loss measurement, in particular to a method and equipment for automatically measuring meat drip loss. Comprising a bottom plate, the top end of the bottom plate is fixedly connected with a constant-temperature box, the top of the constant-temperature box is provided with a cover plate through an up-down adjusting assembly, one end of the bottom of the cover plate is fixedly connected with a hollow shaft, the outer side of the hollow shaft is provided with a multi-layer draining frame, and the bottom of the draining frame is provided with a plurality of hanging rods in parallel at intervals; a weighing sensor is arranged between the top of the hanging rod and the draining frame. According to the method and device for automatically measuring the water drop loss of the meat quality, the cover plate is moved upwards, the cover plate can drive the hollow shaft, the draining frame and the drained water collecting device to move upwards to the position above the constant-temperature box in the upward moving process, then positioning screws are unscrewed, the draining frame and the draining frame rotate around the hollow shaft, and the water drop loss of the meat quality is measured. The draining rack, the hanging rod and the hooks are moved to the outer side, meat hanging operation can be flexibly carried out, the safety is good, and the meat hanging efficiency is higher.

An expandable interbody with a modular endplate has an outer column, an inner column threadedly coupled and translatable relative to the outer column along the longitudinal axis, and an expansion ring to adjust a body length of the expandable interbody. The expansion ring has a plurality of teeth, and the outer column has at least one arm for engaging a tooth of the plurality of teeth to lock the expansion ring. The inner column and / or outer column can include a connector for connection to a modular endplate that has a substantially hollow core. The modular endplate includes a plate with a set screw entrapped therein. The modular endplate has an aperture to receive the connector of the inner and / or outer column.

The utility model discloses a welding device for processing an automobile exhaust converter pipe, which comprises a rack, one side of the rack is rotatably connected with a through mounting cylinder, one side of the mounting cylinder is slidably connected with a plurality of clamping frames for clamping a pipeline, the clamping frames are L-shaped, the bottom of one clamping frame is slidably connected with a through limiting frame, and the bottom of the other clamping frame is slidably connected with a clamping plate. The limiting frame is L-shaped and used for limiting a pipeline, a sliding way is formed in the top of the clamping frame provided with the limiting frame, a threaded hole is formed in the side face of the clamping frame, the top of the limiting frame is fixedly connected with a push block, the push block is slidably connected with the sliding way, and a jackscrew is in threaded connection with the interior of the threaded hole. According to the pipeline fixing device, a pipeline can be clamped and fixed by rotating the rotating ring, use is convenient and fast, the pipeline can be limited through the limiting frame, welding and operation of workers are facilitated, the position of the pipeline can be confirmed by observing the pointer and the scale marks, and the adjusting accuracy is improved.

A lid for a container with a flip-straw (or spout) detachable from the lid to for user access to and cleaning of the lid. A pivotable spout is located on and detachable from the lid top. A set screw is located on and detachable from the lid bottom. The set screw is configured to engage and releasably attach the spout to the lid. Attachment may be facilitated by spout insertion into curved tracks with a terminal end in a lid recess. Another straw may be releasably attached to the lid bottom and extend downward into a drinking container. The set screw member may have a channel that passes through it, and that forms a continuous channel (together with the spout and / or other straw) when the spout is flipped up for the fluid passage from the container.

The utility model discloses a heat exchanger tube bundle with adjustable baffle plate spacing, which comprises a tube plate, one side of the tube plate is provided with a plurality of heat exchange tubes, the plurality of heat exchange tubes are provided with baffle plates which are alternately distributed up and down at equal intervals, and the joints of the two sides of the baffle plates and the heat exchange tubes are provided with adjusting locking components. The baffle plate heat exchanger is provided with the threaded chucks, the locking nuts, the set screws and the screw holes, the distance between the baffle plates is adjusted by adjusting the locking assemblies, the distance between the baffle plates is convenient to adjust, and the heat exchange efficiency is improved by adjusting the distance between the baffle plates and increasing the flow speed.

The invention discloses a fine gap-adjustable tilting pad bearing and a control method, and belongs to the technical field of bearings, and the fine gap-adjustable tilting pad bearing comprises a bearing body, pads, pre-tightening screws, set screws, a cover plate, a displacement amplification structure, pre-tightening bolts, elastic gaskets and piezoelectric ceramic stacks. A plurality of tilting pads are arranged on the inner arc surface of the bearing body and are matched with the bearing body through a spherical support; four radial grooves are formed in the outer arc face in the circumferential direction and are opposite to the centers of the four tile blocks respectively. A notch of the radial groove is connected with a cover plate, is internally provided with a piezoelectric ceramic displacement amplification mechanism and is connected with the spherical support through a positioning pin; a piezoelectric ceramic stack is arranged between a left boss and a right boss of the mechanism and is pre-tightened by a pre-tightening bolt and an elastic gasket. According to the invention, the inverse piezoelectric effect of piezoelectric ceramics is utilized, a vibration and non-linear suppression method is provided, an advanced control algorithm is matched, the piezoelectric ceramics stack is electrified and contracted, a displacement amplification effect is generated through a displacement amplification mechanism, the tile gap is finely adjusted, and the high-performance requirement of modern rotating machinery is met.

The utility model relates to an explosion-proof photoelectric sealing connector for an oil detection robot, which adopts a photoelectric mixed transmission principle and combines a sealing principle and an explosion-proof principle to realize the functions of photoelectric mixed transmission, oil sealing, explosion prevention and the like of the connector. Comprising a plug and a socket, the plug is composed of a screw sleeve, a plug shell, a connecting shell, a glue pouring shell, a filler sealing type cable lead-in device A, a plug insulation part, a vulcanization tail sleeve, a cable lead-in device with an elastic sealing ring, a gasket, a pressing screw tail, a set screw, a photoelectric composite cable and a sealing ring. The socket is composed of a sealing ring, a socket shell, a socket sealing insulation part, a filler sealing type cable lead-in device B, a thread locking screw ring and a photoelectric lead. The utility model provides an explosion-proof photoelectric sealing connector for an in-oil detection robot. The explosion-proof photoelectric sealing connector has the functions of photoelectric mixed transmission, oil sealing, explosion prevention and the like.

The key groove milling tool is provided with a V-shaped block, a check block is installed at one end of a V-shaped sinking groove of the V-shaped block, and a flat position positioning block is installed at the other end of the V-shaped sinking groove of the V-shaped block; axial positioning screws are rotationally mounted on the stop blocks, and the axial positioning screws abut against the shaft end faces of the shaft parts to be used for axial positioning of the shaft parts with different lengths; the upper end face of the flat position positioning block is provided with a flat position positioning inclined face, the inclination angle alpha of the flat position positioning inclined face is equal to the included angle between a shaft part key groove and a flat position, and the flat position positioning inclined face makes contact with and is attached to the flat position of the shaft part. The V-shaped block is provided with a pressing plate, and the pressing plate downwards presses the shaft part and tightly presses and fixes the shaft part on the V-shaped block. The technical problem that the machining efficiency is low when a three-axis machining center is used for machining a shaft key groove and a milling key groove with the angle relation between the flat position and the shaft key groove is solved, the structure is simple and compact, economical and practical, clamping is convenient, the machining difficulty is reduced, the machining efficiency is improved, and universality is high.

Expandable spinal implants, systems and methods are disclosed. An expandable spinal implant may include a first endplate, a second endplate, and a moving mechanism that is operably coupled to the first and second endplates. The moving mechanism may include a wedge, a first sliding frame and a second sliding frame disposed on opposite sides of the wedge, a screw guide housing a rotatable first set screw and a rotatable second set screw opposite the first set screw. The first set screw may be operably coupled to the second sliding frame and the second set screw may be operably coupled to the wedge. The moving mechanism may operably adjust a spacing between the first and second endplates upon simultaneous rotation of the first and second set screws and operably adjust an angle of inclination between the first and second endplates upon translating the first set screw or second set screw.

The utility model relates to the technical field of road well lid installation, in particular to a road well lid installation leveling device. In order to solve the problems that a traditional road well lid mounting and leveling method wastes time and labor and is poor in leveling precision, the novel road well lid mounting and leveling device is provided and comprises a cross-shaped rod, supporting legs are arranged at the four free ends of the cross-shaped rod, limiting sleeves are fixed to the side faces of four rod pieces of the cross-shaped rod, and the cross-shaped rod is connected with the supporting legs. A positioning ruler rod is installed in each limiting sleeve in an up-down sliding mode, a limiting threaded hole is formed in the circumferential wall of each limiting sleeve, each limiting threaded hole is matched with a limiting jackscrew, a base plate is fixed to the bottom end of each positioning ruler rod, and each positioning ruler rod is further sleeved with a leveling sleeve in an up-down sliding mode. Leveling threaded holes are formed in the peripheral walls of the leveling sleeves, leveling jackscrews are arranged on the leveling threaded holes in a matched mode, and leveling needles are further fixed to the peripheral faces of the leveling sleeves. The device is simple in structure, accurate in measurement, convenient to manufacture, reusable, convenient to operate and labor-saving.

The utility model relates to a multi-beam laser deposition printing head device. The multi-beam laser deposition printing head device comprises a printing head base, a plurality of shaping optical lens sets, a plurality of mounting bases, a plurality of optical fiber connectors, a plurality of laser position adjusting jackscrews, a plurality of printing head guide nozzles, a feeding pipe and a feeding guide nozzle. By screwing one or more laser position adjusting jackscrews on the mounting seats, the laser position adjusting jackscrews move back and forth in respective laser position adjusting screw holes, the positions of the optical fiber connectors mounted on the mounting seats can be adjusted, and the positions of the optical fiber connectors mounted on the mounting seats can be adjusted by adjusting the positions of the optical fiber connectors on one or more mounting seats. Focusing light spots of multiple light beams are aligned with the feeding position of a coaxial material, and a complex adjusting mechanism does not need to be additionally designed in the whole process for secondary adjustment of the light spot position. Therefore, the multi-beam laser deposition printing head device has the advantages of being simple in structure, small in size and low in manufacturing cost while ensuring that the multi-beam focusing light spots can be accurately aligned with the feeding position of the coaxial material.

Disclosed are reducer instrument locking mechanisms. They can be located near a center pivot joint of the reducer, thereby eliminating a ratchet at the reducer proximal end. The locking mechanisms can include a pawl or latch that travels with one handle from an open position to a closed position. The pawl can fall into a groove formed in an opposing handle such that handles of the reducer can be locked relative to one another, at least with regard to movement of the handles away from one another. When falling into the groove, the pawl can create an auditory and / or tactile indication that a sufficient amount of rod reduction has been achieved to allow for set screw insertion. After set screw insertion, the reducer locking mechanisms can be released to clear it of the groove and allow the reducer to return to its open position.

A device for wall mounting a display including a mount assembly and a swivel mechanism assembly. The mount assembly includes a television mounting portion and an extending / contracting portion and the swivel mechanism assembly moveable between a first and a second configuration and including a biasing component. The extending / contracting portion includes a lower arm, an upper arm, a front bracket, a wall mounting bracket, one or more gas springs, and a linear actuator. The one or more gas springs and the linear actuator may lower and raise the television mounting portion. The biasing component is configured to bias the television mounting portion to swivel in a first or a second direction when the swivel mechanism assembly is in the first configuration when the display mounting portion is lowered. The mount assembly may include a set screw to set a swivel stop for the first and the second swivel directions.

The utility model relates to the technical field of turbine mechanical sealing, and discloses a double-end-face brush type-labyrinth combined sealing structure, which comprises a shaft sleeve connected with a rotor through a shaft sleeve fastening screw; a sealing seat; the double-end-face brush type sealing ring is fixedly arranged with the sealing seat through a brush ring set screw; the double-end-face brush type sealing ring comprises a first brush wire bundle, a front baffle, a first fusion welding area, a middle baffle, a second fusion welding area, a rear baffle and a second brush wire bundle. The labyrinth sealing ring is arranged on the back face of the double-end-face brush type sealing ring, an O-shaped ring is arranged between the labyrinth sealing ring and the sealing seat, the labyrinth sealing ring is fixed to the shell through a check ring, and the shell is connected with the sealing seat through a screw. The double-end-face brush type seal and the labyrinth seal are combined, the double-end-face brush type seal ring saves more materials and space compared with a conventional two-stage end face brush type seal in series connection, the throttling effect of the labyrinth seal plays an auxiliary sealing role, and therefore the sealing effect is better.

The present invention provides knotless suture anchor systems and devices for attaching soft tissue to bone. The systems and devices include suture anchors configured to engage and fasten sutures using set screws such that the locked sutures are free from frictional engagement with bone, screw threading, or internal walls of the anchors and set screws. Fastened sutures may also be re-tensioned by loosening a set screw to unfasten the sutures, adjusting the positioning of the sutures, and tightening the set screw to refasten the sutures. In some embodiments, the systems and devices enable the insertion of a suture anchor without preloading sutures, such that one or more sutures may be fastened to the suture anchor after implanting the suture anchor into a subject.

The utility model belongs to the technical field of a main shaft brake disc of a wind generating set, and provides a device for quickly positioning and installing the main shaft brake disc of the wind generating set. The whole device is in a cylinder shape and is divided into a left tool and a right tool, the left tool and the right tool are connected through threads, and the overall length of the tool is changed by rotating the threads. The left tool is provided with a magnet base, the magnet base and the left tool are bonded into a whole through glue, the whole tool can be attracted to a mounting platform, the left tool is provided with a set screw penetrating through the internal threads, relative movement of threaded connection parts can be locked, and it is guaranteed that the overall length of the tool is not changed when the tool is used. A fixed pointer scale is arranged on the cylindrical side face of the right tool and can indicate the current rotating position of the tool. The utility model can effectively solve the problems of quick positioning and mounting of the main shaft brake disc of the wind generating set.

An adjustable support arm capable of providing users with a wide range of height, depth, tilt, and swivel options. The adjustable support arm may comprise an arm assembly releasably mounted to a base assembly. In further embodiments, the adjustable support arm may also comprise an articulating joint connected to the arm assembly, and an accessory bracket assembly connected to the articulating joint. A quick-release joint comprising a spring-loaded pivot latch may be utilized to releasably connect the arm assembly to the base assembly. To dampen side-to-side movement of the arm assembly, the adjustable support arm may also comprise a friction cartridge assembly comprising a taper-lock bushing and one or more set screws. A ring-shaped, adjustable panning insert can be coupled to the arm assembly to restrict the range of side-to-side motion of the support arm. The adjustable arm can further comprise a quick-release accessory fastening mechanism for easy removal and attachment of a mounted object (e.g., an electronic display, keyboard, or other item) to the support arm.

The utility model discloses corner cutting equipment for home furnishing manufacturing, which comprises a mounting rack, two pressure bearings are fixedly embedded in the inner side wall of the mounting rack, the inner rings of the two pressure bearings are fixedly connected with a rotating screw rod together, and the right side surface of the mounting rack is fixedly connected with a rotating motor. According to the device, a sealing bearing, an L-shaped fixing rod and an electric hydraulic rod are arranged, the pushing force of the electric hydraulic rod is utilized, a plate can be conveniently fixed, meanwhile, the electric hydraulic rod can be conveniently and randomly moved to a designated position, and an L-shaped fixing frame can conveniently drive the plate to move; by arranging the L-shaped mounting plate, the pin shaft, the mounting hole, the connecting plate and the positioning screw, the positioning screw is matched with the positioning hole, and the connecting plate is in sliding connection with the inner wall of the mounting hole, the connecting plate can be conveniently and randomly adjusted, so that the angle of the cutting disc can be changed according to different requirements; and therefore, a user can conveniently cut the oblique angle of the plate.

An adjustable ball joint which is infinitesimally adjustable using a jam nut wherein no set screws are used. A kit for constructing an adjustable ball joint which is infinitesimally adjustable using a jam nut wherein no set screws are used. A method of assembling an adjustable ball joint which is infinitesimally adjustable using a jam nut wherein no set screws are used.

Implantable devices and assemblies that provide a friction fit between a receiver and a fastener, such as a bone screw. A frictional force is applied between the screw head and both a retention ring and a pressure insert, maintaining and stabilizing the orientation of the receiver relative to the screw head before being fixed by a set screw. This mechanism prevents drooping or slipping of the receiver out of alignment when implanted. Additionally, the devices allow for modular assembly before or during spinal fixation, enabling bottom-side loading of the screw head into the receiver. Various screws with different characteristics can be coupled to the receiver body before or after implantation. The frictional force may be facilitated by one or more ridges on the receiver body that engage the pressure insert, which is resiliently urged against the screw head, providing a spring-like compression force.

A bone fixation system comprises a first fastener configured to anchor into a first vertebrae, a second fastener configured to anchor into a second vertebrae, and a set screw to retain the second fastener to the first fastener. The first fastener includes a shaft extending along a longitudinal axis and a head. The shaft includes a first cylindrical body. The head of the first fastener includes a second cylindrical body defining a passageway having an interior surface. The passageway defines a longitudinal axis that is different than the longitudinal axis of the shaft. The first cylindrical body of the shaft and the second cylindrical body of the head are angled relative to each other. A head of the second fastener is configured to engage the interior surface of the passageway of the head of the first fastener. The set screw retains the head of the second fastener in the passageway.

Disclosed in the present invention is a pull-in rotatable elastic casing centralizer, comprising an upper end ring. A plurality of working rib plates are connected to the bottom of the upper end ring. The sides of the plurality of working rib plates away from the upper end ring are jointly connected to a lower end ring. A stop ring is sleeved on the outer wall of the lower end ring. Also disclosed in the present invention is a centralizing method based on a pull-in rotatable elastic casing centralizer. Before entering a wellbore, the centralizer is sleeved on the outer side of a casing, the lower end ring is mounted in a direction toward a wellhead, set screws distributed on the outer side of the stop ring are tightened, and the entire centralizer is fixed to the casing, thereby completing centralization. After the mounting is completed, the stop ring of the centralizer and the casing are fixed relative to each other, and the entire centralizer is pulled into the wellbore along with the casing, so that the resistance during entering is relatively small, and no destructive impact is caused to rib plates of the centralizer due to difficulty in entering. In addition, even if the centralizer encounters resistance in the wellbore, the pull-in design will not cause destructive compression of the rib plates of the centralizer, allowing the centralizer to more easily pass.

There is provided a terminal for an electrical power cable that includes a conductive clip, a terminal block, and a set screw. The clip resides in the terminal block and includes a plurality of openings sized to receive low voltage connectors, such as spade connectors. The openings in the clip are arranged to organize the spade connectors and their respective pigtail connections. The location and orientation of the clip and the spade connectors is such that, when the set screw is installed in the terminal block, force is applied by the set screw onto the clip. The clip compresses and secures the spade connectors to the terminal block.

The utility model discloses an easily detachable low-friction wire guiding device which comprises a support and a wire guiding wheel assembly, the wire guiding wheel assembly is installed on the support, the wire guiding wheel assembly comprises a wire guiding wheel, an installation shaft and a bearing, the wire guiding wheel is installed on the installation shaft through the bearing, the installation shaft is fixed on the support, the support is provided with an installation notch, and the installation notch is arranged on the support. The mounting shaft is arranged in the mounting notch, the mounting shaft is fixed in the mounting notch through a set screw, and a plurality of arc-shaped bulges are uniformly distributed on the wire guide wheel. The mounting shaft is a stepped shaft with a large middle and two small ends, a shaft shoulder is arranged in the middle, one side of the bearing is close to the shaft shoulder, and a retainer ring is arranged on the other side of the bearing. A right dustproof cover is arranged on the right side of the wire guide wheel, and one end of the right dustproof cover abuts against the bearing. A left dustproof cover is arranged on the left side of the guide wheel. The problems that an existing wire guiding device is inconvenient to use and disassemble, and wires are prone to being abraded are solved.

The present invention relates to a split steel plate end-fixed and embracing spinal canal shaping internal fixation device, comprising a straight-edge steel plate and a beveled steel plate distributed on the left and right sides of the spinous process, wherein the straight-edge steel plate has a decompression groove straight edge extending from one side close to the spinous process, a straight-edge guide rail in contact with the spinous process is provided on the outer side of the decompression groove straight edge, and a plurality of positioning screws are provided on the straight-edge steel plate; the beveled steel plate has a decompression groove bevel extending from one side close to the spinous process, a beveled guide rail in contact with the spinous process is provided on the outer side of the beveled steel plate, and a plurality of positioning screws are provided on the beveled steel plate. Thus, the reliability of use and coordination can be effectively improved, the difficulty of use can be reduced, and the labor intensity of medical staff can be reduced. The overall structure is simple and easy to manufacture. A corresponding accommodating cavity can be added to achieve drug delivery, further reducing the number of operating steps.

A set screw for use in an intramedullary fracture fixation device having a longitudinal axis includes a housing and a set screw. The set screw may include a body with an external thread and an elastic member extending from the body, the elastic member having an uncompressed condition and a compressed condition. The housing may include a sidewall partially surrounding the longitudinal axis that defines a cavity for receiving the set screw such that when the set screw is at least partially disposed within the cavity and in the uncompressed condition, the set screw is secured to the housing and rotatable relative to the housing.

The utility model discloses a supporting tool convenient for preparing a surface coating of a ball core piece, which belongs to the field of alloy coating preparation and is characterized in that a supporting sleeve is sleeved on a working connecting rod, an adjusting screw hole and a positioning screw hole are arranged on the supporting sleeve, and a positioning screw is used for connecting the supporting sleeve with the working connecting rod through the positioning screw hole; the adjusting screw is detachably connected into the adjusting screw hole through a thread; the operation ball core piece is arranged on the supporting sleeve in a sleeving mode, and the inner surface of the operation ball core piece abuts against the top end of the adjusting screw. According to the utility model, two line supports are matched with one central point support and conform to the equilateral triangle design principle, so that the gravity center of the tool and the gravity center of a working piece are ingeniously overlapped together, and the eccentricity ratio is reduced, thereby reducing the coating defects caused by eccentricity and jumping in the coating preparation process and improving the coating quality of products.

The invention relates to a double-clamp-spring locking structure, a pipeline connecting device and a dismounting and mounting method.The double-clamp-spring locking structure comprises a pipe fitting, the pipe fitting is provided with a plurality of connectors which are communicated with one another, each connector is correspondingly connected with a pipeline, the outer wall of each pipeline is provided with a clamping groove A, each clamping groove A is provided with a clamp spring A, and the inner wall of each connector is provided with a limiting groove and a clamping groove B; the clamping groove A is provided with a clamping spring A, the limiting groove limits the clamping spring A to move inwards, the clamping groove B is provided with a clamping spring B, the clamping spring B limits the clamping spring A to move outwards, the pipe fitting is provided with a set screw, and the set screw locks the pipeline. The pipeline connecting device comprises the double-clamp-spring locking structure, a sealing groove is formed in the inner wall of the connector, a sealing ring is arranged on the sealing groove, and the sealing ring is used for sealing under the action of liquid. An existing single-clamp-spring design thought is overturned, a double-clamp-spring locking structure is innovatively designed, pipeline locking connection can be achieved only through one screw in cooperation with the double-clamp-spring locking structure, and the double-clamp-spring locking structure has the advantages of being reasonable in structural design, high in machining efficiency, convenient and efficient to install, reliable in locking and the like.