8results about How to "Good locking function" patented technology

The utility model provides a novel air energy locking conversion device, which relates to the technical field of air energy locking, and comprises a door frame, door plates are symmetrically arranged on the inner side of the door frame, a side mounting plate is arranged on the side surface of the door frame, the top of the side mounting plate is connected with a rotating seat, and the side surface of the rotating seat is connected with an air cylinder. The side mounting plate is matched with the rotating seat to provide rotating connection for the air cylinder and realize mounting support, one end of the air cylinder is connected with the telescopic rod to realize a rotating connection effect, the connecting shaft is connected with the connecting rod, and the linkage effect is conveniently realized by utilizing telescopic adjustment of the air cylinder and the telescopic rod; meanwhile, in the stretching and retracting process, a communicating pipe can convey internal air pressure to the position of a locking converter conveniently, so that the locking converter achieves stretching and retracting adjustment, then the locking function is completed, a mounting rod is matched with a mounting ring to provide a mounting and supporting position, the two splicing sleeves are spliced, and the cleaning sleeves are arranged on the inner sides of the splicing sleeves; and the cleaning sleeve is attached to the outer wall of the telescopic rod, and the cleaning effect is achieved.

The utility model discloses a straightening roll locking device, which belongs to the technical field of straightening machines, and comprises a jacking mechanism arranged at the end part of a straightening roll, the straightening roll comprises a roll shaft, a roll sleeve sleeved outside the roll shaft and a roll ring sleeved outside the roll sleeve, the jacking mechanism comprises an annular limiting component arranged at the end of the roller sleeve in a sleeving mode and used for axially fixing the roller ring, a hydraulic locking cylinder connected with the roller shaft through a shaft rod, a bolt arranged at the tail end of the hydraulic locking cylinder and a C-shaped annular plate arranged between the annular limiting component and the hydraulic locking cylinder. A stepped groove is formed in the circle center position of the C-shaped circular ring plate on the face, making contact with the hydraulic locking cylinder, of the C-shaped circular ring plate, and second grooves communicated with the first grooves in the top layer of the stepped groove are formed in the two ends of an opening of the C-shaped circular ring plate. And the quality of straightened products is ensured.

This utility model relates to the technical field of injection molds, and in particular to an injection molding structure combining a sliding block and a slanted ejector. It includes a front mold assembly, a rear mold assembly, a sliding block mechanism, and a slanted ejector mechanism. The front mold assembly has a front mold core, the rear mold assembly has a rear mold core, and the sliding block mechanism has a sliding block insert. The front mold core, rear mold core, and sliding block insert cooperate to form an injection cavity. The sliding block insert is located on the side of the injection cavity and is used to injection mold the side wall of the plastic part. The slanted ejector mechanism has a slanted ejector rod, and the sliding block insert has a guide slanted hole. The slanted ejector rod passes through the guide slanted hole, thereby cooperating with the sliding block insert to injection mold the undercut on the side of the plastic part. In summary, this design effectively handles the undercut on the side of the plastic part, while simplifying the mold structure, reducing manufacturing costs, and improving demolding reliability.

This disclosure provides an armrest structure and a wheelchair. The armrest structure includes a mounting mechanism; one bottom end of a protective plate is hinged to the mounting mechanism so that the protective plate can rotate relative to the mounting mechanism, and the protective plate has an open state and a latched state; a locking mechanism is rotatably disposed at the other bottom end of the protective plate, used to lock the protective plate to the mounting mechanism when it is in the latched state, and to allow the protective plate to rotate to the open state when unlocked; the armrest mechanism is slidably connected to the protective plate and can be raised and lowered relative to the height of the protective plate. The armrest structure and wheelchair of this disclosure can switch between the open and latched states of the protective plate, making it much easier for users to enter and exit the device when the protective plate is open; the armrest mechanism can slide and rise and fall along the height of the protective plate, and users can adjust the position of the armrest mechanism according to their height, body shape, or specific posture needs, improving the versatility of the product and the user experience.

The utility model discloses a safety belt retractor with an emergency locking effect, and relates to the technical field of safety belts, the safety belt retractor comprises a retractor body and a mounting seat mounted on the upper surface of the retractor body, the upper surface of the mounting seat is fixedly connected with a clamping seat, a brushing rod is arranged in the clamping seat, and the brushing rod is fixedly connected with the clamping seat. And two groups of clamping mechanisms are arranged in the clamping seat. Compared with an existing common safety belt retractor with the emergency locking effect, the safety belt retractor with the emergency locking effect has the advantages that sundries and dust on the surface of a safety belt can be cleaned away through the cleaning rod, the attaching roller can be attached to the surface of the safety belt, the cleaning rod is prevented from excessively attaching and cleaning, and the safety belt retractor with the emergency locking effect is safe and reliable. The surface of the safety belt or the brushing rod is damaged, the good attaching and brushing effect is achieved, an anti-disengaging block can prevent the attaching frame from sliding out of the interior of the clamping base, in addition, the attaching frame can slide out of a clamping strip in the clamping base, in the maintenance or replacement and sliding process of the brushing rod, a limiting strip can slide in a limiting groove, and the limiting function is provided.

The utility model discloses a steel structure civil air defense door which comprises a round door frame and a round door cover, a frame edge is arranged at the end, facing the round door cover, of the round door frame, an annular groove is formed in the inner side of the frame edge, a multi-leaf cam is rotationally connected to the end, facing the round door frame, of the round door cover, and locking assemblies are distributed on the periphery of the multi-leaf cam. The locking assembly comprises a guide sleeve extending in the radial direction of the round door cover, a guide column is slidably connected into the guide sleeve, one end of the guide column can be inserted into the annular groove, the other end of the guide column is rotationally connected with a guide wheel with the wheel face tightly attached to the multi-blade cam, and a limiting hole extending in the length direction of the guide sleeve is formed in the guide sleeve. A movable spring pin arranged on the guide column is connected into the limiting hole in a sliding mode, a fixed spring pin arranged on the guide sleeve is arranged at the end, facing the multi-blade cam, of the movable spring pin, and an extension spring is connected between the fixed spring pin and the movable spring pin. A driving assembly is further included. The civil air defense door has the advantages of being labor-saving in opening and closing and convenient to lock, and is complete in overall function and high in practicability.