71results about How to "Avoid accidental sliding" patented technology

The invention discloses a side-core-pulling injection mold. The side-core-pulling injection mold comprises a fixed mold body and a movable mold body; the movable mold body is provided with a horizontal sliding groove, the interior of the horizontal sliding groove is in sliding fit with a core-pulling sliding block, and an inserting block pointing to the side face of a mold core is arranged on theinner side of the core-pulling sliding block; a hinged shaft is arranged on the outer side of the core-pulling sliding block, the hinged shaft is in clearance fit with a swing rod in a sleeved mode, and a damping ring used for enabling the swing rod to overcome the gravity to keep a swing angle is arranged between the hinged shaft and the swing rod; linkage pins are arranged at the end, away fromthe hinged shaft, of the swing rod; one side of the fixed mold body is connected with vertical rectangular frames through outwards-protruded mounting blocks, and the linkage pins are in sliding fit with the interiors of the vertical rectangular frames; and each vertical rectangular frame is composed of a T-shaped jacking plate and a U-shaped frame, and adjusting screws used for changing the distance between outer transverse plates of the T-shaped jacking plates and the mounting blocks to clamp or loosen the U-shaped frames are arranged between inner vertical plates of the T-shaped jacking plates and the mounting blocks. According to the side-core-pulling injection mold, the side-core-pulling distance can be adjusted, and the time interval between two actions of side-core-pulling and mold opening can be adjusted.

The invention provides a detection device for fan-head mechanisms. The detection device comprises a positioning unit and a push-and-pull component; the positioning unit is used for fixing a support of each fan-head mechanism, the push-and-pull component having a reciprocating state is disposed on one side of the positioning unit, and an operating end of the push-and-pull component is connected with a fan head of the fan-head mechanism. By the aid of the positioning unit, the support of the fan-head mechanism is fixed during testing, the fan-head mechanism is prevented from sliding accidentally during testing, and test reliability is guaranteed. Since the operating end of the push-and-pull component is connected with the fan head of the fan-head mechanism, the fan head is driven to move along with reciprocation of the push-and-pull mechanism and do pitching motion continuously, and accordingly, labor is saved, labor intensity of work staff is reduced, test cost is lowered, and uniformity and accuracy in testing are guaranteed. The detection device has the advantages of simple structure and low manufacturing cost.

The conveying belt lifting and swinging mechanism comprises a bottom plate, anti-skid devices, a positioner, an anti-falling device and a cleaner, the bottom of the bottom plate is provided with a plurality of sets of anti-skid devices, the bottoms of the anti-skid devices are provided with supports, the outer wall of a rotating rod is provided with a pressing block, and the inner wall of each anti-skid device is provided with a motor. And two groups of positioners are mounted at the top of the bottom plate. A protector is installed to prevent the equipment from accidentally sliding during working, firstly, after the equipment is moved to a preset position through universal wheels, the output end of a motor rotates to drive a rotating rod to rotate, the rotating rod rotates to drive a pressure applying block to move, and after the pressure applying block moves to a certain position, a first connecting plate is pushed to move; the first connecting plate moves to drive the first positioning plate to move, the bottom of the first positioning plate makes contact with the ground to limit the position of the bottom plate, the equipment can be prevented from sliding accidentally, and the purpose of preventing the equipment from sliding is achieved.

The invention discloses a wheelchair brake. The wheelchair brake comprises a shell and a handle, wherein a rotatable pull disc and a lock disc are arranged in the shell; a plurality of slide tooth heads are arranged on the edge of the lower surface of the pull disc in the peripheral direction; a Z-shaped wiring notch is formed inside a pulling main body; a plurality of lock tooth heads are arranged on the edge of the upper surface of the lock disc in the peripheral direction; and the lock tooth heads are matched with the slide tooth heads. After a user releases the handle, the pull disc cannotbe rotated and restored since the slide tooth heads are clamped in the lock tooth heads, and the handle is clamped in the current locking position. The wheelchair brake is safe and reliable, and caneffectively prevent a wheelchair from sliding unexpectedly.