11results about How to "Safe and reliable locking" patented technology

The invention discloses a disc tool magazine tool-turning device, which relates to the technical field of disc tool magazines in machining centers, and includes a tool-turning cylinder, a tool-turning support block, a self-locking female buckle and a self-locking male buckle. The tool-turning support block is fixedly connected to the piston rod end of the tool-turning cylinder, and the piston rod can be extended and retracted to enable the tool-turning support block to move up and down. The self-locking female buckle is fixedly connected to the front end cover end surface of the tool-turning cylinder, and the self-locking male buckle is fixedly connected to the tool-turning support block. The upward movement of the tool-turning support block can drive the tool sleeve to flip upward to realize the knife collection and make the self-locking male buckle and the self-locking female buckle engage to realize the locking of the tool sleeve. The downward movement of the tool-turning support block can separate the self-locking male buckle from the self-locking female buckle to unlock and drive the tool sleeve to flip downward to realize the tool-turning. A disc tool magazine is also disclosed, including the above-mentioned disc tool magazine tool-turning device. The disc tool magazine tool-turning device and the disc tool magazine provided by the invention have reliable locking and improve the service life of the tool-turning cylinder.

The invention discloses a folding seat for an electric leisure vehicle for the elderly, including a backrest frame, a cushion frame, and a seat folding device. The seat folding device includes left and right main brackets, an upper bracket, left and right lower brackets, and a shock absorber. The two ends of the left and right main brackets are hinged on the front supports on both sides of the cushion frame and the frame. The upper parts of the left and right lower brackets are rotatably connected to the upper bracket, and the lower parts are hinged on the rear supports on both sides of the frame. The shock absorber is hinged between the cushion frame and the upper bracket. The left and right main brackets are provided with inner lock holes and track grooves respectively. The central tube of the upper bracket is provided with a spring and spring pins on both sides of the spring. The spring pins are provided with lock column sections that match the inner lock holes and guide column sections that match the track grooves respectively. The guide column sections extend out of the track grooves and are connected to the locking mechanism. After adopting the above structure, it has the advantages of reasonable structural design, simple operation, fast and convenient folding, reliable connection, and small folding volume.

The utility model relates to a jacking and sliding construction device for a large-section double-layer cantilever steel box girder. The jacking and sliding construction device comprises a sliding shoe and a hydraulic crawler, wherein the sliding shoe is arranged in a sliding shoe distribution girder structure and used for providing jacking and lifting power for the steel box girder, and the hydraulic crawler is arranged on a sliding rail and used for providing sliding advancing power for the sliding shoe. The position control device can effectively achieve the effect of accurately controlling the position of the jacked and slipped steel box girder, so that the operation flexibility is improved, the construction period is shortened, the economic benefit is high, and the construction cost is effectively reduced.

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 provides a backrest supporting leg mechanism of a child safety seat. The child safety seat backrest supporting leg mechanism comprises an outer pipe, an inner pipe is arranged in the outer pipe, the outer pipe moves along the inner pipe, an adjusting seat assembly is fixed to the lower end of the outer pipe and comprises a clamping jaw and a button, the clamping jaw and the button are fixedly connected and arranged on the outer side of the outer pipe, and the clamping jaw is used for fixing the outer pipe and the inner pipe. The structure is simple and compact, and operation is easy.

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.