7results about How to "Safe and reliable locking" patented technology

The present invention discloses a tipping guardrail, comprising an auxiliary rotating arm, an active rotating arm and a fixed connecting frame, wherein the auxiliary rotating arm and the active rotating arm are both connected to the fixed connecting frame through a rotating assembly; a second limiting slide is provided on one side of the fixed connecting frame close to the auxiliary rotating arm, a sliding plate is provided on one side of the auxiliary rotating arm, and the auxiliary rotating arm can rotate along the arc slideway of the second limiting slide with the sliding plate; a first limiting slide is provided on one side of the other fixed connecting frame close to the active rotating arm, and a rotating plate is connected to the lower part of the active rotating arm. The beneficial effect is that the tipping guardrail can adjust the height of the guardrail by sliding on the second limiting slide, has a simple and practical structure, is reliable and quick to unlock, is convenient for patients to get on and off the bed, and is safe and reliable to lock, and can protect the safety of patients.

The utility model provides a narrowing spring locking excitation mechanism for an automatic injection pen, which comprises a push rod, a retraction sleeve, a narrowing spring base, a narrowing spring and the like, and is arranged around the narrowing spring, so that the locking can be ensured to be safe and cannot be easily triggered and unlocked; unlocking excitation can be achieved only when the push rod pushes medicine to complete injection, pushing force is automatically provided by the needle retracting spring in the unlocking excitation process, dependence on the elastic force of the tail section of the injection spring can be eliminated, and the unlocking excitation process is convenient and rapid.

The utility model discloses a wire coil locking device for an enamelling machine, which comprises a rotation driving mechanism, a pneumatic pull rod mechanism and a clamping mechanism, and is characterized in that the rotation driving mechanism comprises a bearing seat, a main rotating shaft movably arranged in the bearing seat in a penetrating manner, and a transmission mechanism arranged on the main rotating shaft and used for driving the main rotating shaft to rotate; the pneumatic pull rod mechanism comprises an air cylinder coaxial with the main rotating shaft and a pneumatic pull rod fixedly installed at the output end of the air cylinder, and the pneumatic pull rod movably penetrates through the main rotating shaft. The clamping mechanism is arranged at the end, away from the direction of the air cylinder, of the main rotating shaft and comprises a positioning piece and a tensioning piece which are coaxial with the main rotating shaft, the tensioning piece is arranged at the end of the main rotating shaft and used for tensioning a center hole of the wire coil, and the positioning piece is fixed to the portion, between the tensioning piece and the bearing seat, of the main rotating shaft and used for being matched with the wire coil in an inserted mode so as to limit the wire coil. According to the device, the clamping mechanism is matched with the pneumatic pull rod mechanism, so that the wire coil can be automatically locked or released, the operation is simple and quick, the coil replacement difficulty is low, and the efficiency is high.

The application discloses a house car lock clutch assembly, which comprises a latch pull plate, a shaft core shift fork, a clutch block pull plate, a clutch block, a spring and a shift plate. The clutch block pull plate is provided with a clutch block groove body, the spring and the clutch block are installed in the clutch block groove body, and the spring, the clutch block and the shaft core shift fork are sequentially contacted. The latch pull plate is connected with the shaft core shift fork in linkage, the clutch block pull plate is provided with a clamping position, the latch pull plate is dynamically matched with the clamping position, and the clutch block is dynamically contacted with the shift plate. The house car lock clutch assembly has the function of cutting off or transmitting the external force of an inner handle or an outer handle to a lock catch linkage assembly.

The invention belongs to the technical field of aircraft cabin lock mechanism design, and particularly relates to a collision lock type uplock installed on the upper portion of a fuselage and a transmission system. The collision lock type uplock comprises a lock body, a transmission shaft set, a driving device and a monitoring device; the lock body comprises a lock clamping plate, a lock key retaining spring, a lock hook reset spring, a limiting pin shaft, a lock hook and a lock key, the lock clamping plate is fixed to the machine body, one end of the lock hook is hinged to the lock clamping plate, the other end of the lock hook is connected with the lock hook reset spring, and the lock hook reset spring enables the lock hook to abut against the limiting pin shaft; one end of the lock key is hinged to the lock clamping plate and driven by the transmission shaft set to rotate, the other end of the lock key abuts against the lock hook through the lock key maintaining spring, during locking, the lock hook is pushed by the lock ring to rotate to hook the lock ring, the lock key slides along the surface of the lock hook and enters the locking curved surface of the lock hook, and the lock ring is prevented from disengaging from the lock hook. During unlocking, the transmission shaft drives the lock key to rotate to be separated from the locking curved surface of the lock hook, and the lock ring is separated from the lock hook.

The present invention provides a locking mechanism for an emergency handle of a cabin door of a civil aircraft, and belongs to the field of cabin door mechanisms of civil aircraft. The present invention takes into account the movement logic relationship between the emergency handle and the external handle in various states, realizes posture control according to the movement trajectory of the mechanism, integrates and simplifies multiple functional parts, improves the transmission efficiency of the mechanism, and locks the roller through the groove cam arc slideway, thereby realizing the locking of the emergency handle. The mechanism is safe and reliable, has excellent anti-reverse drive performance, and can reliably lock the pre-positioning rod. The mechanism of the present invention is compact and has good applicability. It can be widely applied to various types of cabin doors and has good practical value.

This invention belongs to the field of smart wearable device technology and discloses an orientation adjustment mechanism, including a support base, a movable base, a locking component, and an adjusting base. The movable base is rotatably mounted on the support base and has a supporting protrusion. The locking component is located between the support base and the movable base and includes two rollers and two elastic elements. In the circumferential direction of the movable base, the supporting protrusion is located between the two rollers, and an elastic element is sandwiched between each roller and the supporting protrusion. When the rollers abut against the support base and the movable base under the support of the elastic elements, they are in a locked state. The adjusting base is rotatably mounted on the support base and has an adjusting protrusion. When the adjusting base rotates relative to the support base, the adjusting protrusion can push the roller on one side of the supporting protrusion to move towards the supporting protrusion. In this invention, the two rollers and two elastic elements in the locking component cooperate with each other, enabling orientation adjustment and automatic locking when the adjusting base rotates relative to the support base clockwise and counterclockwise.