23results about How to "Large locking force" patented technology

The utility model discloses a self-locking spring, and belongs to the technical field of springs. Aiming at the problem that a spring in the prior art is not easy to self-lock, the self-locking spring disclosed by the utility model greatly breaks through the limitation of a traditional spring through collaborative innovation of a built-in hinge type locking mechanism and traction unlocking: firstly, a movable rod realizes full-angle unfolding by virtue of gravity or a manual push rod, so that the problem of locking failure in a non-vertical state is thoroughly solved; the movable rod can be folded in a linkage mode only by slightly pressing the spring and then lifting the pull wire, and unlocking operation is obviously simplified; thirdly, the steel multi-hinge structure keeps strong locking force in a vibration environment, and the vibration resistance stability is comprehensively improved; a locking mechanism is completely arranged in a spring cavity, the space utilization rate is increased, the whole device is lighter and more compact, and revolutionary technical support is provided for medical and vehicle-mounted dynamic scenes and the like.

The utility model provides a kind of door bar structure for crane, including pedestal, stand, door bar main part and lock connection component.Pedestal is fixed in maintenance passageway, stand is vertically arranged on pedestal, door bar main part is hinged with stand by hinge, and passageway can be rotated to open and close.Lock connection component includes lock block that is rotatably connected in the top of stand by pin shaft, lock block is equipped with the slot of the notch of down, and door bar main part is correspondingly equipped with clamping portion.Close when rotating lock block to make clamping portion enter notch, and lock block is compressed tightly door bar main part to realize locking under the action of gravity;When opening, reverse rotation lock block makes clamping portion to be out of.The structure solves the problem that traditional door bar lock tongue and lock hole are difficult to align, locking is reliable, has good fault tolerance and security, and is suitable for the protection of crane maintenance passageway.

The utility model discloses a swing type rotating gun welding machine which comprises a supporting frame, a swing mechanism is arranged on the supporting frame, the swing mechanism comprises a rotating shaft, an installation frame, a swing frame, a sliding sleeve, a large rack, an air cylinder and a large gear, and a bunching mechanism is arranged on the swing frame. The bunching mechanism comprises a connecting seat, a bunching sleeve, a screw sleeve, screws, bunching clamps, a tension spring, a push plate, a pinion, a transmission sleeve, a pinion rack and a limiting mechanism, the connecting seat is fixed in the swing frame, the combined design of the connecting seat, the bunching sleeve and the screw sleeve is adopted, the distribution of the screws and the bunching clamps is matched, a reliable cable management system is formed, and the service life of the cable management system is prolonged. Through meshing transmission of the small gear, the transmission sleeve and the small rack, synchronous movement of the multiple sets of bunching clamps is achieved, the surface of the air pipe is protected through the design of the soft cushion, the limiting plate provides a stable movement track for the bunching clamps, and the whole bunching system can effectively manage various cables and prevent winding and damage.

This invention relates to the field of assembly equipment technology, and more particularly to a rapid positioning assembly device for precision stamping dies. The technical solution includes a pair of mounting plates and a fixing column, the fixing column being disposed between the mounting plates. The top mounting plate is slidably connected to the fixing column, and the bottom mounting plate is fixedly connected to the fixing column. An mounting block is fixedly mounted on the bottom of each mounting plate. A guide groove is formed on each mounting plate, and a guide block is slidably mounted on the guide groove. An assembly block is fixedly mounted on the top of the guide block, and a connecting block is fixedly mounted on the guide block. An upper die is fixedly mounted on one of the connecting blocks. This invention improves assembly efficiency, reduces operational difficulty, ensures positioning accuracy, increases product qualification rate, strengthens safety protection, and extends the service life of equipment and dies.

The utility model discloses a kind of plastic pallets with limiting function, including tray body, detachable limit frame is equipped on the tray body upper end face, the limit frame is provided with multiple, multiple detachable settings are between the limit frame, multiple limit frame lower end face four corners are equipped with mounting block, the tray body and multiple limit frame upper end face four corners are all opened with mounting groove corresponding the mounting block, the tray body left and right end face front and back sides are all opened with locking hole corresponding the mounting groove, multiple locking hole interiors are all detachably equipped with locking rod, same side two locking rods outer end are connected with locking plate, multiple mounting blocks are all opened with through hole corresponding locking rod, by the design of limit frame, different specifications of stacking can provide firm lateral support and fence protection, guarantee the stability and security of goods stacking.

The utility model discloses inspection tool equipment for bending a steel pipe, which comprises an inspection platform, a first inspection assembly and a second inspection assembly, and is characterized in that the first inspection assembly comprises a first guide rail which is horizontally arranged on the inspection platform in an extending manner, and a first sliding group and a first positioning block which are connected and arranged on the first guide rail in a sliding manner; the second inspection assembly comprises a second guide rail which is vertically arranged on the inspection platform in an extending manner, a second sliding group and a second positioning block, the second sliding group and the second positioning block are connected and arranged on the second guide rail in a sliding manner, and scales are respectively arranged on the first guide rail and the second guide rail. Angle and length determination can be synchronously completed, abstract angle verification is converted into visual physical fitting determination by using an orthogonal rigid structure of the horizontal slide rail and the vertical slide rail, one-button rapid detection of a bent steel pipe product is realized, human factors are reduced, detection time is greatly shortened, and working efficiency is improved.

An anti-falling solid sucker rod special for a spiral guiding and centralizing screw pump relates to the technical field of sucker rods and comprises a sucker rod body, a plurality of paraffin scrapers are rotatably arranged on the sucker rod body in parallel in the axial direction, lining tile sleeves corresponding to the paraffin scrapers are fixed on the sucker rod body, and the paraffin scrapers are rotatably mounted on the lining tile sleeves. An embedded concave rod head is arranged at the upper end part of the sucker rod body, an embedded convex rod head is arranged at the lower end part of the sucker rod body, the embedded concave rod head and the embedded convex rod head on the adjacent sucker rod body are fixed through a coupling, and the sucker rod body is also provided with an opposite jacking type locking structure for restraining the axial position of the coupling. The sucker rod solves the problems that when a wax scraper on a sucker rod in the prior art is used, the rod body is abraded due to the fact that the wax scraper rotates in the circumferential direction, and the working stability is affected due to the fact that the wax scraper moves in the axial direction of the rod body along with rotation of the wax scraper.

The present application relates to a kind of helical stepless rotary locking mechanism, including screw nut, screw rod assembly and lock, screw nut can rotate around its axis;Screw rod assembly is installed at one end of screw nut, it is coaxial with screw nut distribution, and its one end is threadedly connected with screw nut;Lock is installed at the other end of screw rod assembly, for locking or loosening screw rod assembly.The beneficial effects of the present application are to provide a kind of simple structure, reliable, small locking force stepless rotary locking mechanism, for stepless locking to rotating component, locking driving force is small, can realize stepless locking to rotating piece.

The utility model provides a kind of high-low beam car light radiator with positioning structure, it is related to heat dissipation device field, the high-low beam car light radiator with positioning structure, including mounting bracket, the inboard of mounting bracket is slidably connected with connecting seat, the inner chamber top and bottom between connecting seat are fixedly connected with fixed plate in intermediate position, the both sides of fixed plate are fixedly connected with three limit rods, the outer side of limit rod is sleeved with compression spring, the high-low beam car light radiator with positioning structure can significantly improve installation efficiency, operator does not need to repeatedly align screw hole, adjust position when installing, clamping block locking mechanism can be tightly engaged with radiator and car light installation part, provide strong locking force, prevent radiator from loosening, displacement phenomenon due to factors such as vibration, jolt in the process of vehicle driving, effectively improve the reliability of radiator installation.

The utility model relates to a lightning arrester counter convenient to install belongs to lightning arrester counter technical field, including backplate, two connecting plates and quick locking assembly, the quick locking assembly includes the first locking block of installing on backplate rear side wall upper end and lower end position, the quick locking assembly still includes the second locking block of installing respectively in two connecting plates front side wall, two second locking blocks and two first locking blocks staggered distribution, the second locking block of upper end and the first locking block of upper end are connected, adopt the unique quick locking assembly, through the meshing drive of the incomplete tooth disc and the incomplete gear ring with the elastic force action of cooperation torsional -tensile composite spring, realize the quick connection and separation of backplate and connecting plate, whole installation process does not need complicated tool, greatly reduced manpower cost and time cost.

The utility model discloses a quick connector mechanism which comprises an aluminum connector body and an air pipe connector installed at one end of the aluminum connector body, and a boss used for fixing the air pipe connector is arranged at the end of the aluminum connector body. And the gas pipe joint is provided with a special-shaped groove for disconnecting the gas pipe joint. The boss is arranged at one end of the aluminum connector body and can be used for fixing the air pipe connector, and it can be guaranteed that the aluminum connector body is connected with the air pipe connector without independently adding a connector plastic plug; meanwhile, the special-shaped grooves are formed in the air pipe joints, mutual winding and huddling of the multiple air pipe joints in the stacking process can be avoided, the opening sectional area of the novel air pipe joints is larger than that of an original linear C shape, and force is smaller when a pipeline is inserted in the follow-up process; when the pipeline is pulled out, the novel air pipe connector makes contact with the periphery of the pipeline, and the locking force is more stable.

The application discloses a spring operating mechanism and method for a circuit breaker, and belongs to the technical field of circuit breakers, which comprises a clamp plate type frame, an energy storage to position clutch, a closing holding and a manual closing soft interlocking device, the clamp plate type frame is fixedly connected by opposite first and second side plates through a supporting piece; an energy storage motor of an energy storage transmission device is connected with an energy storage shaft through a transmission assembly, a cam is arranged on the shaft, and an energy storage holding buckle is arranged; the energy storage to position clutch device is a one-way clutch assembly connecting the transmission assembly and the energy storage shaft; the closing holding device comprises a hinged opening release assembly, a reset elastic piece and a linked output shaft; the manual closing soft interlocking device comprises a sliding manual operating assembly, a closing trigger piece and an interlocking assembly, and is matched with the energy storage holding buckle; the problems of the existing spring operating mechanism for the circuit breaker, such as the reliability, structure, cost or precision related defects of the energy storage clutch device, the manual closing mechanical interlocking, the closing holding structure and the modular mechanism cooperation are solved.

This utility model relates to the field of electromagnetic shielding door technology and discloses a manual electromagnetic shielding door, including a door frame, a door leaf located in the middle of the front side of the door frame, a locking device located at the top of the left front end of the door frame, an upper locking rod located at the left front end of the door leaf, a limit seat located on the bottom left side of the upper locking rod, a lower locking rod rotatably connected to the bottom of the limit seat, a connecting piece rotatably connected to the bottom end of the lower locking rod, and a drive shaft rotatably connected to the inner side of the connecting piece. In this utility model, the locking device and hinge device are installed on the vertical beam of the shielding door frame, and the locking head fixed wheel moves in a triangular pattern to achieve the purpose of opening and locking. Therefore, the manual locking electromagnetic shielding door does not affect its effectiveness in the absence of power or power outages, has strong locking force, high stability, low maintenance costs, high safety protection performance, is not affected by voltage instability and power outages, and improves usage efficiency.

This application discloses a bone plate, including an inner surface facing the bone, an outer surface opposite to the inner surface, and an inner surface extending between the inner and outer surfaces. The inner surface forms a locking hole, which includes a locking segment. The locking segment includes a first sub-hole segment and a second sub-hole segment sequentially distributed along the direction from the outer surface to the inner surface. The first and second sub-hole segments are conical holes with gradually increasing diameters along the direction from the inner surface to the outer surface. The inner surface includes a first surface forming the first sub-hole segment and a second surface forming the second sub-hole segment. The first surface includes a plurality of sub-surfaces sequentially distributed along the circumference of the first sub-hole segment and spaced apart by grooves. The second surface has a first internal thread continuously distributed along the circumference of the second sub-hole segment. By providing a continuously distributed first internal thread on the first surface, this application increases the locking force of the first internal thread on the screw, preventing the screw from loosening and coming out of the bone plate.

The invention relates to the technical field of high-pressure cleaning machines, and discloses a labor-saving high-pressure cleaning machine spray gun which comprises a gun barrel and a gun handle, and is characterized in that the gun handle comprises a locking block, a gun valve, a first trigger and a second trigger, the gun valve is connected with a valve rod, and the first trigger pushes the valve rod to open the gun valve through a first pivot lever rotating fulcrum; a second pivot is arranged at the end, far away from the first pivot, of the first trigger and serves as a lever rotating fulcrum of the second trigger, the locking block rotates around the rotating shaft under the action of the spring, a sliding face and a limiting face are arranged on the locking block, a buckle is arranged on the second trigger, and a stress face corresponding to the limiting face is arranged on the buckle. According to the auxiliary trigger, the supporting effect of the locking block is very firm due to the rotating supporting design of the locking block, the buckle and the locking block are separated in two directions, the position size of the buckle is not limited by the rotating space of the auxiliary trigger any more, supporting and tripping of the buckle are very effective and reliable, and the auxiliary trigger is convenient to use. And the device is also suitable for higher-pressure high-pressure cleaning machines.

This application discloses a pre-embedded sleeve connector, including a connecting screw, a first sleeve, and a second sleeve. The connecting screw includes a first threaded section, which is connected to a second threaded section. A limiting structure is provided between the second threaded section and the first threaded section. The limiting structure includes: the thread pitch of the second threaded section is different from that of the first threaded section; or, the diameter of the second threaded section is larger than the diameter of the first threaded section. One end of the first sleeve is open, and the second threaded section is threadedly connected inside the first sleeve. The second sleeve is threadedly fitted onto the first threaded section, and the second sleeve is located between the inner wall of the first sleeve and the outer wall of the first threaded section. This application has the advantages of strong self-locking force, high reliability, and prevention of loosening due to environmental forces.

This utility model discloses an anti-deflection quick-release plate structure and photographic equipment, both comprising: a quick-release plate, wherein a fastening screw is inserted through the center of the quick-release plate along its thickness direction, the fastening screw being rotatable relative to the quick-release plate around its axial direction, the head of the fastening screw facing the lower surface of the quick-release plate, and the threaded shank of the fastening screw extending out of the upper surface of the quick-release plate for connecting photographic equipment; the quick-release plate is provided with a positioning anti-deflection mechanism to prevent the fastening screw from rotating relative to it. When the photographic equipment is threaded onto the threaded shank, the photographic equipment and the head of the fastening screw together clamp the quick-release plate, and the positioning anti-deflection mechanism contacts the fastening screw to prevent the fastening screw from rotating relative to the quick-release plate, thereby increasing the locking force between the fastening screw and the quick-release plate, preventing the photographic equipment from deflecting or loosening relative to the quick-release plate, and thus ensuring the stability of photographic and video recording operations.

The utility model discloses a visual intercom device, which comprises an interphone body for bidirectional visual conversation, an installation assembly used for installation and fixation is arranged between the interphone body and a wall surface, and a quick disassembly assembly used for realizing quick disassembly and assembly is arranged between the installation assembly and the interphone body. And an adjusting assembly for adjusting the height and angle of the interphone body is arranged between the quick release assembly and the mounting assembly. According to the utility model, through cooperative use of the housing, the jack and the hook, plugging and limiting operation of the interphone body and the adjusting assembly is realized, through cooperative use of the iron plate and the electromagnetic lock, electromagnetic locking operation of the interphone body is realized, the structure is simple and exquisite, the interphone body can be rapidly disassembled and assembled conveniently, and the interphone body can be conveniently and rapidly assembled and disassembled. And the locking force and the impact resistance are higher, so that random disassembly and assembly by people without miscellaneous things are effectively prevented, and the safe and reliable effects are further achieved.

This utility model discloses a traction device for garden engineering, including a guide rail, which is arranged on the outside of the plant's roots and fixed to the ground; a sliding member, which slides along the guide rail to select a suitable traction position according to the plant's branches; a traction member, which is installed through the sliding member; and a traction rope, one end of which is wrapped around the traction member and the other end is wrapped around and fixed to the branch being tractioned. This device can achieve multi-dimensional flexible adjustment, is easy to operate, is reliable in fixation, and can adapt to the dynamic growth needs of plants.

This utility model relates to an easy-to-install car door sill protector, belonging to the technical field of car door sill protectors. It includes a frame and a door sill protector body. The frame has fixing grooves on both the left and right sides of its upper surface, and the door sill protector body has fixing holes on both the left and right sides of its upper surface. Fixing mechanisms are installed inside the fixing holes on both sides, and each fixing mechanism includes a fixing plate fixed inside the fixing holes on both sides. This easy-to-install car door sill protector achieves high-precision fixing through the cooperation of the clip and the slot, ensuring that the door sill protector body will not loosen during vehicle operation. The spring telescopic rod's reset function provides stable locking force. The entire operation is completed by simply pushing, rotating, and releasing the handle, making it simple and quick. The use of rubber plugs further simplifies the installation steps and prevents dust accumulation inside the fixing holes. The structure is relatively simple and easy to install.

This utility model relates to the field of sealed door lock technology, and discloses a sealed door lock structure for a pet spa machine that is easy to open and close. The structure includes a spa machine housing, a housing frame, and a door hinged to the housing frame. It also includes: a lock body, fixedly mounted on the housing frame, with a mounting cavity inside the housing frame for mounting the lock body, and a rotating pressing assembly inside the mounting cavity; a pressing actuator including eccentric wheels mounted on a rotating shaft, with a flange above each of the two eccentric wheels, and an opening groove at the farthest end of the flange near the rotating shaft core; and a lock, fixed to the door, which cooperates with the pressing actuator to lock and seal the door. This ingenious design is convenient and labor-saving to operate, provides a stable and reliable seal, and significantly improves the performance, safety, and durability of the pet spa machine.

The utility model discloses a reinforced eddy current sensor relates to eddy current sensor technical field, including signal processor, sensor probe and positioning adjusting mechanism, the signal processor is connected with sensor probe through the connecting cable, the utility model adopts servo motor drive ball screw to adjust sensor probe, has reduced the complexity of manual operation, and because ball screw has smaller friction coefficient and lower wear, the return gap is smaller in the adjustment process, and the error is smaller when repeating positioning, and, after adjusting, lock through the band brake function of servo motor, compares traditional double nut locking, servo motor initiative lock axle, locking force is big, and the anti -vibration and impact performance is excellent, even in complex environment also can keep stable, thereby can keep the positioning performance of stable, has greatly promoted the precision and reliability of equipment, is applicable to the occasion that sensor probe needs frequently adjusting or precision adjustment.

The utility model relates to the technical field of air pipe connecting devices, and discloses a preheater air pipe connecting device for cement production, which comprises a first high-temperature-resistant alloy steel flange plate, a connecting sealing mechanism is arranged outside the first high-temperature-resistant alloy steel flange plate, and a metal corrugated pipe expansion joint is arranged on the right side of the first high-temperature-resistant alloy steel flange plate. A second high-temperature-resistant alloy steel flange plate is arranged on the right side of the metal corrugated pipe expansion joint. According to the preheater air pipe connecting device for cement production, through the sealing layer arranged in the inner-layer lining, by means of the high-temperature-resistant property of the expanded graphite composite strip, sealing of the flange connecting position can be achieved under matched installation of the first fixing lantern ring, the second fixing lantern ring and the inner-layer lining, meanwhile, when the expanded graphite composite strip is replaced, the sealing effect is good, and the sealing effect is good. And the flange does not need to be disassembled, replacement can be carried out only by disassembling the bolt and disassembling the first fixing lantern ring and the second fixing lantern ring, and the convenience of installing and replacing the sealing element is improved.