13results about How to "Guaranteed locking effect" patented technology

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.

A hinge cup for metal hinges includes a panel and a recessed pocket portion located in the middle of the panel. A hinge seat for hinged connection with the hinge body is provided on one side of the panel and pocket. Several outwardly protruding anti-detachment devices are integrally formed on the outer cylindrical surface of the pocket, serving to engage with the inner wall of the mounting holes after the hinge cup is installed into the plate. The beneficial effects of this invention are: the anti-detachment devices effectively resist external axial pull-out forces and radial wobbling, directly enhancing the bonding force between the hinge cup and the plate, fundamentally improving the anti-detachment performance of the hinge cup, and significantly enhancing the locking force.

The drawing hose comprises a corrugated pipe, the corrugated pipe is arranged in a supporting pipe in a penetrating mode, a water outlet assembly is connected to the corrugated pipe, the outer side of the corrugated pipe is sleeved with a locking sleeve and a releasing sleeve, the locking sleeve is connected with the supporting pipe, one end of the locking sleeve extends into the supporting pipe, and a fixing part is arranged at the end of the locking sleeve; the fixing part can be connected with the outer side of the corrugated pipe in a clamped mode, the release sleeve is located between the corrugated pipe and the locking sleeve, and the release sleeve can be inserted into the locking sleeve and can open the fixing part. The locking sleeve and the releasing sleeve are arranged on the corrugated pipe, the fixing part is arranged at the end, inserted into the supporting pipe, of the locking sleeve, and the fixing part can be connected with the outer side of the corrugated pipe in a clamped mode, so that the drawing length of the corrugated pipe is fixed, and flushing operation is facilitated; and meanwhile, the release sleeve can be inserted into the locking sleeve to open the fixing part so as to unlock the corrugated pipe, so that the corrugated pipe is convenient to retract, and the use is convenient.

This utility model provides an angle-adjustable curved lock for LED displays, comprising a housing, an angle adjustment mechanism, and a side-locking mechanism. A rotating base is disposed within the housing. The angle adjustment mechanism includes an angle adjustment component, an angle adjustment disc, and a knob. The angle adjustment disc is located at the top of the angle adjustment component, and the bottom of the angle adjustment component is located within the housing. The angle adjustment component is mounted on the rotating base. The knob passes through the angle adjustment disc and is located within the angle adjustment component. Multiple sets of protrusions are evenly distributed around the periphery of the angle adjustment component, each set of protrusions having a locking hole. The side-locking mechanism includes a fixing sleeve and a handle. One end of the handle is connected to the fixing sleeve, and a limiting pin passes through the fixing sleeve. The top of the limiting pin passes through one set of locking holes in the angle adjustment component. Through the cooperation of the angle adjustment mechanism and the side-locking mechanism, multi-angle splicing can be achieved, meeting the installation requirements of curved surfaces and irregularly shaped spaces, improving installation flexibility and adaptability, and broadening application scenarios.

The invention relates to the technical field of pressure transmission, in particular to a pressure assembly and a vehicle. A pressure assembly includes: a decelerator housing; the first lug is arranged on the peripheral side, away from the frame body, of the speed reducer shell; one side, far away from the speed reducer shell, of the first lug is connected with the frame body; the second lug is arranged on the peripheral side, away from the frame body, of the speed reducer shell; one side, far away from the speed reducer shell, of the second lug is connected with the frame body; wherein the first convex lug and the second convex lug are arranged on the peripheral side of the speed reducer shell at an interval; the included angle between the center line of the first lug in the circumferential direction of the speed reducer shell and the center line of the second lug in the circumferential direction of the speed reducer shell has a first preset range. Therefore, the problem of how to ensure the locking effect of the pressure assembly and the frame body when the distance between the frame body and the pressure assembly is narrow is solved.

The utility model provides a universal circuit breaker key locking device and a circuit breaker. The universal circuit breaker key locking device comprises a first key locking mechanism, a second key locking mechanism and a mounting bracket, the first key locking mechanism and the second key locking mechanism are installed on the installation support side by side, and a first lock rod of the first key locking mechanism is located at a first locking position and used for rotating relative to the installation support under driving of a first key and switching between a locking state and an unlocking state; and a second lock rod of the second key locking mechanism is positioned at a second locking position and is used for rotating relative to the mounting bracket under the driving of a second key and switching between a locking state and an unlocking state. According to the utility model, the two key locking mechanisms are arranged, opening locking can be carried out at different locking positions, and when one key locking mechanism has a mechanical fault, the other key locking mechanism can be used as a standby to ensure the locking capability of the system, so that the operation and maintenance safety is improved, and meanwhile, the function of a single key locking mechanism is also considered.

The utility model discloses a threaded sleeve with an expansion function, relates to the technical field of threaded sleeves, and aims to solve the problems that threaded connection between the threaded sleeve and a base material possibly becomes loose gradually and even the threaded sleeve falls off from a prefabricated hole when the threaded sleeve is affected by factors such as vibration, impact load, severe temperature change or material creep for a long time. Comprising a screw sleeve body, the screw sleeve body comprises a self-tapping section and an expansion section, the top surface of the self-tapping section is provided with the expansion section for preventing falling and loosening, and the outer wall of the expansion section is provided with a plurality of groups of notches for assisting the expansion section to change the radius; according to the design of the expansion section, the inner groove in the inner wall and the notches in the screw flights are matched with the effect of a subsequent installation tool, radial expansion of the expansion section can be achieved, and the expansion section is in tight interference fit with the inner wall of a screw hole after the thread sleeve body is completely installed in place.

The utility model relates to the field of injection molding machines, and discloses an electric injection moving structure of an injection molding machine, which comprises a glue injection mechanism, a mold locking mechanism, an elastic piece and a first ball screw, the glue injection mechanism is provided with a first driving device with a band-type brake function, and the first ball screw comprises a lead screw and a lead screw nut. The lead screw nut sleeves the lead screw and axially moves along the lead screw, the first driving device is connected with the lead screw and drives the lead screw to rotate, the mold locking mechanism is provided with a connecting rod, the end part of the connecting rod is provided with a limiting plate, the connecting rod penetrates through the outer wall of the lead screw nut and limits the rotation of the lead screw nut, and two ends of the elastic piece respectively abut against the lead screw nut and the limiting plate. According to the scheme that the driving mechanism outputs power to compensate displacement and achieve the locking effect, after successful butt joint, the glue injection mechanism is pushed to move forwards through the elastic force of the elastic piece, so that the locking effect is kept, energy consumption is saved, elastic deformation of the elastic piece can absorb part of impact force, the driving device is prevented from directly bearing extreme loads, and the service life of the driving device is prolonged. And motor life is prolonged.

The utility model relates to the technical field of photovoltaic single crystal thermal fields, in particular to a single crystal furnace heat preservation cylinder clamping and lifting tool which comprises a supporting ring, a plurality of anti-skid plates are detachably installed on the inner side of the supporting ring, and a tightening bolt used for adjusting the clamping range is arranged at the connecting end of one side of the supporting ring. A movable buckle assembly used for locking the supporting ring is arranged at the connecting end of the other side of the supporting ring, and a plurality of handrails are fixedly installed on the outer side of the supporting ring. The inner diameter of the supporting ring can be adjusted by rotating the tightening bolt, and after the inner diameter is adjusted, the polished rod can be controlled to slide towards one side by arranging the movable buckle assembly, adjusting the position of the locking nut and driving the first hinge block to rotate through the handle, so that the first clamping ring and the second clamping ring are in a locked state; and it is guaranteed that when facing heat preservation barrels of different sizes, the heat preservation barrels can be locked through the device, the clamping effect is guaranteed, subsequent lifting through a handrail is facilitated, and damage to the heat preservation barrels is avoided.

The utility model relates to the technical field of elevator car locking, and discloses an elevator car locking device which comprises a device base, a locking frame is installed on the upper surface of the device base, a locking mechanism used for locking a car is arranged on one side of the locking frame, a driving mechanism used for driving the car is arranged on the side wall of the locking frame, and the driving mechanism is arranged on the side wall of the locking frame. A quick release mechanism for replacing the locking mechanism is arranged on one side of the driving mechanism; the locking mechanism comprises an electromagnet, the electromagnet is fixed to one side of the locking frame, and the two ends of the electromagnet are both connected with fixing blocks. The electromagnet on the locking frame stops electrifying, so that the fixed block loses external thrust, under the action of the pressure spring, the fixed block is pushed to move inwards, under the action of the rotating shaft, the friction block in the movable piece is in contact with the outer surface of the fixed wheel, the fixed wheel is fixedly locked, and then the lift car is locked.

The hand-tight drill chuck with the locking function comprises a locking piece and an inner gear ring, the locking piece is provided with an elastic piece, the elastic piece is provided with a locking end warped outwards, the inner gear ring comprises a first ring-shaped base body, the first ring-shaped base body is provided with an inner gear piece which can elastically deform towards the outer side in the radial direction to be matched with a rotating sleeve in an extrusion mode, and the inner gear piece is provided with a second ring-shaped base body. The outer side face of the inner tooth piece is provided with wave-shaped arc-shaped protrusions in the circumferential direction, the inner tooth piece is provided with inner ratchets facing the radial inner side, the inner ratchets are matched with the lock end, the rotating sleeve is provided with a structure for controlling the lock end, and an extrusion structure is arranged between the nut and the step. The extrusion structure extrudes the inner gear ring backwards and towards the radial outer side based on reverse thrust borne by the nut, the inner tooth pieces are pushed and extruded to be elastically deformed and opened towards the radial outer side, and therefore the wave-shaped arc-shaped protrusions and the inner wall of the rotating sleeve are tightly extruded. The anti-inertia self-loosening unlocking performance of the hand-tight drill chuck with the locking function is improved, and abrasion of the rotating sleeve can be reduced while the anti-inertia self-loosening performance is high.

The utility model discloses a kind of workbench quick positioning device and trolley, including positioning support, pedestal, rotary block and lock bar, pedestal is installed on positioning support, the circumferential groove of several continuous arrangements is equipped on the upper end of pedestal, the rotary block is equipped in the upper portion of pedestal, the handle is equipped in the one side of rotary block, the pressing plate is equipped in the upper portion of rotary block, the convex platform of several continuous arrangements is equipped in the lower end axial of rotary block;Pedestal inside is equipped with sleeve, sleeve upper end is connected with rotary block, lock bar is fixedly connected in the inside of sleeve, the lower end of lock bar is connected with T type sliding block by passing through pedestal and positioning support, T type sliding block is installed in the T type sliding slot of workbench surface.This utility model is by rotating handle, using the matching surface of rotary block and pedestal, drive lock bar and T type sliding block to rise, reduce the gap between T type sliding block and positioning support, realized the quick clamping of quick positioning device on workbench surface, without repeatedly screwing bolt, improve the efficiency of quick positioning device dismounting, adjustment.