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68results about How to "Prevent accidental unlocking" patented technology

Powerful and mechanical automatic-locking hydraulic cylinder

The invention discloses a powerful and mechanical automatic-locking hydraulic cylinder, and belongs to the technical field of hydraulic cylinders. The two ends of a cylinder barrel are sealed by a cylinder cover and a cylinder bottom respectively. A guiding column of the cylinder cover is sleeved with a spring. The spring is sleeved with a brake block. The two ends of the spring abut against the cylinder cover and the brake block respectively. The outer circumferential face of the large diameter of the brake block is in sealing fit with the inner circumferential face of the cylinder cover. The end face of the end, with a large-diameter hole, of a locking block abuts against the end face of the step of an inner hole of the cylinder barrel, and the other end face of the locking block abuts against the end face, located at the portion of the cylinder barrel, of the cylinder cover. After a steel ball is put into a steel ball installation hole of a piston, the steel ball installation hole of the piston is matched with an inner hole of the cylinder barrel, and an annular groove of the piston corresponds to a rodless cavity oil port in the cylinder barrel. One end of a piston rod is fixed to a piston rod installation hole of the piston, and the other end of the piston rod penetrates through the cylinder bottom to be located outside the cylinder barrel. According to the powerful and mechanical automatic-locking hydraulic cylinder, the requirement for automatic locking after the piston rod is completely retracted can be met, and the locking state can be kept for a long time under the situation that pressure relief of a hydraulic system is completed or leakage happens until unlocking is actively achieved.
Owner:CSIC ZHONGNAN EQUIP

Pull rope type automatic cylinder locking mechanism with self-locking function

The invention provides a pull rope type automatic cylinder locking mechanism with a self-locking function, and relates to an automatic cylinder locking mechanism used for locking a launching cylinder. The pull rope type automatic cylinder locking mechanism can automatically achieve the locking action and the unlocking action and can prevent unlocking happening by mistake in the locking process. The pull rope type automatic cylinder locking mechanism comprises a hollow lock sleeve. A limiting hole is formed in the outer wall of the lock sleeve. A tapered end is arranged in the lock sleeve. The outer surface of the tapered head is attached to the inner surface of the lock sleeve. A counterbore is formed in the longitudinal center of the left end of the tapered end. A pull rod with the stair-shaped outer surface is arranged in the counterbore. The middle of the pull rod is sleeved with a pull rod spring. The left end of the pull rod extends out of the left end face of a gland fixedly connected with the left end of the tapered end, and is connected with one end of a pull rope. A tapered end spring is arranged on the left side of the tapered end. The other end of the pull rope sequentially penetrates through the tapered end spring and a lock sleeve end cover fixedly connected with the lock sleeve, and is connected with a cylinder. A transverse guide hole is formed in the tapered end and is a through hole. A limiting block is arranged in the guide hole. A guide pin is fixed to the middle of the limiting block in the front and back direction. An inclined face groove is formed in the right end of the pull rod and is a through hole inclining towards the lower left portion from the right end face of the pull rod. The guide pin can slide in the inclined face groove.
Owner:BEIJING INST OF SPACE LAUNCH TECH +1

Locking and unlocking control method of safe smart lock

The invention discloses a locking and unlocking control method of a safe smart lock. The method is based on a safe smart lock system, the safe smart lock comprises a lock head, a key, a portable electronic product and a remote master station, wherein the portable electronic product is in communication connection with the remote master station; the key is in communication connection with the portable electronic product through Bluetooth, and is in communication connection with the lock head; the portable electronic product is provided with a Bluetooth module; according to communication connection of the lock head, the key, the portable electronic product and the remote master station, the unlocking action and a series of information verification and password verification before unlocking are achieved, so that safe unlocking is guaranteed. The lock system is low in cost, intelligent, convenient to operate, safe and reliable, and unlocking by mistake is avoided. Meanwhile, with adoption of comprehensive management and information storage functions of a communication network and the master station, information such as operation objects, operators, object states and operation time for locking and unlocking can be effectively recorded and managed, and a management system of the electric field is completed.
Owner:XIAMEN HUASHU ELECTRIC POWER SCI & TECH CO LTD

Electronic locking device

The invention discloses an electronic locking device. The electronic locking device comprises a shell, a power mechanism arranged in the shell, a transmission mechanism, a spring bolt sliding block, afeeding screw rod, a self-locking elastic piece, a reset mechanism and an unlocking action mechanism, wherein the power mechanism, the transmission mechanism, the spring bolt sliding block, the feeding screw rod, the self-locking elastic piece, the reset mechanism and the unlocking action mechanism are arranged in the shell. A locking mechanism provided by the invention is ingenious in concept, the transmission mechanism is ingenious in matching, the safety in a normal state is high, manual unlocking can be effectively prevented, and when emergency manual unlocking is needed, the transmissionmechanism of the electronic locking device can be safely and reliably unlocked; the electronic locking device is high in process integration level, higher in process automation degree, low in cost and higher in protection grade, compared with an former similar product, the structure is simple, the appearance size is small, the cost is low, and a high protection grade can be met; according to theelectronic locking device, the problems that a spring bolt is easily pulled out and the manual unlocking operation is partially followed are solved, and the system misjudgment probability in the charging and locking process is reduced, and the problem that manual unlocking mechanism with internal parts of an automobile body is interfered due to the rotation of an operation handle at the tail end of the manual unlocking mechanism when electric locking and unlocking at each time is avoided.
Owner:宁波均胜新能源汽车技术有限公司 +1

Unlocking method and apparatus

The invention discloses an unlocking method and apparatus, and belongs to the technical field of a mobile terminal. The unlocking method comprises the steps of detecting whether the mobile terminal is hand-held by a user or not when the mobile terminal is in a sleeping state; detecting whether the face of the user is opposite to a touch screen of the mobile terminal or not when the mobile terminal is in the sleeping state; and unlocking the mobile terminal when the mobile terminal is hand-held by the user and when the face of the user is opposite to the touch screen. According to the unlocking method, the following steps are performed: detecting whether the mobile terminal is hand-held by the user or not when the mobile terminal is in the sleeping state; detecting whether the face of the user is opposite to the touch screen of the mobile terminal or not when the mobile terminal is in the sleeping state; and unlocking the mobile terminal when the mobile terminal is hand-held by the user and when the face of the user is opposite to the touch screen. Two conditions are detected at the same time, and only when the two conditions are both satisfied, unlocking is performed, so that wrong unlocking of the mobile terminal is avoided; and in addition, an independent operation by the user is not required in the whole process, so that convenience is brought to the use of the user, and the user experience is improved.
Owner:XIAOMI INC

Pull-tab-shaped bayonet lock self-locking type lead end grounding clamp

InactiveCN104393430AAvoid automatic disengagementTo achieve the purpose of safety and reliabilityElectric connection basesClip conductor connectionEngineeringSelf locking
A pull-tab-shaped bayonet lock self-locking type lead end grounding clamp comprises an operation rod, a Y-shaped connecting rod, an L-shaped clamp, a falling-prevention mechanism, a T-shaped stop block and a second compression spring, wherein the operation rod and the Y-shaped connecting rod are connected in a hung manner through connecting holes; the Y-shaped connecting rod comprises left and right bent plates, the upper part of the Y-shaped connecting rod is connected with the operation rod in the hung manner through the connecting holes, and the lower part of the Y-shaped connecting rod is connected with the L-shaped clamp through a bolt; the upper part of the L-shaped clamp is connected with the Y-shaped connecting rod through the bolt, and a groove and the falling-prevention mechanism are arranged in the L-shaped clamp; the falling-prevention mechanism comprises a pull-tab-shaped bayonet lock and a first compression spring, the first compression spring is embedded in the L-shaped clamp, and the pull-tab-shaped bayonet lock is contacted with the T-shaped stop block under the action of the first compression spring; the T-shaped stop block is sleeved with the second compression spring, the upper end of the second compression spring is contacted with the T-shaped stop block, and the lower end of the second compression spring is contacted with the L-shaped clamp. With the adoption of the grounding clamp, problems that existing grounding clamps are complex in structure, easy to fall and the like can be solved, and the grounding clamp has the broad market prospect and the high business value.
Owner:GUANGXI UNIV

Electrical connector and assembly therewith having a spring-apart function

The present invention relates to an electrical connector (2), in particular for establishing an electrical connection with a squib of an airbag arrangement in a vehicle, the connector (2) being adapted to be mated with a mating connector (3) along a plug direction (P). Further, the invention relates to an electrical plug-in connector assembly (1), in particular for establishing an electrical connection with a squib of an airbag arrangement in a vehicle, comprising a connector (2), a mating connector (3) adapted to be mated with the connector (2) along a plug direction (P), via a spring-apart position (N), in which the connector (2) is at the most partly mated with the mating connector (3). In order to indicate that the connector (2) and/or the plug-in connector assembly (1) have not yet properly reached a fully mated position (M), the present invention provides a spring arrangement (5) providing a spring-apart face (52) facing into the plug direction (P) and being displaceable at the connector (2) against a spring-apart force (FA) acting in the plug direction (P), and/or a spring arrangement (5) exerting a spring-apart force (FA)) between the connector (2) and the mating connector (3) at least in the spring-apart position (N), the spring-apart force (FA) acting on the connector (2) in a direction opposite to the plug direction (P), respectively. In an advantageous embodiment, the spring-apart function can be disengaged by means of a locking member (4).
Owner:TYCO ELECTRONICS (UK) LTD +1

Vehicle and parking braking pull handle device thereof

InactiveCN106553627APrevent disengagementRealize the function of preventing accidental unlockingHand actuated initiationsFriction torqueEngineering
The invention discloses a parking braking pull handle device. The parking braking pull handle device comprises a push rod, a toothed plate and a toothed claw with the lower end engaged with the toothed plate; the middle of the toothed claw is hinged to a handle; an unlocking button is arranged at the upper end of the push rod; the toothed plate is hinged to the handle so that the toothed claw can be engaged with or disengaged from the toothed plate along with rotation of the handle; the upper end of the toothed claw is sleeved between two limiting parts of the push rod in a movable mode, and the push rod is provided with a toothed claw elastic part used for pushing the toothed claw to the bottom end of the push rod; the torque of the toothed claw elastic part to push the toothed claw is smaller than the torque of ratchets of the toothed plate to lock the toothed claw so that the toothed claw can keep engaged with the toothed plate when the unlocking button is touched by mistake; and the torque of the toothed claw elastic part to push the toothed claw is greater than the friction torque of a toothed claw rotary shaft so that unlocking can be achieved by pressing the unlocking button after the toothed claw is disengaged from the toothed plate by lifting the handle. The invention further discloses a vehicle comprising the parking braking pull handle device, and the parking safety performance of the vehicle is good.
Owner:BEIJING BORGWARD AUTOMOBILE CO LTD

Door lock

The invention relates to a door lock. The door lock comprises a lock cover assembly and a linkage mechanism, wherein the lock cover assembly is arranged on a door structure; the linkage mechanism is arranged inside the door structure; the lock cover assembly comprises a lock seat, as well as a lock cover plate and a lock box which are matched with the lock seat; the lock seat is fixed on one side surface of the door structure; the lock cover plate is arranged on the lock seat and can slide on the lock seat; a sliding lock used for locking the lock cover plate to slide is arranged in an area between the lock seat and the lock cover plate; the lock box is arranged inside the door structure and fixedly connected with the surface of the side, far away from the lock cover plate, of the lock seat; through holes are formed in all of the lock seat, the lock box and the door structure, and arranged in an aligned manner; and the lock cover plate can slide until the through hole in the lock seat is completely blocked or completely exposed. The door lock provided by the invention is simple in structure, firm and reliable, simple to operate, and applicable to high-strength door plates and door plate sealing; by adoption of an adjustable mounting mode, the door lock is convenient and rapid to mount, overhaul and replace; and the lock cover assembly and the linkage mechanism are adopted for double locking, thereby greatly improving the safety performance of the door lock.
Owner:WUHAN ZHONGZHI ELECTRIC

Bluetooth-based safety intelligent lock system with attendance checking function, attendance checking method and unlocking and locking method

The invention discloses a Bluetooth-based safety intelligent lock system with an attendance checking function, an attendance checking method and an unlocking and locking method. The safety intelligent lock system comprises a portable electronic device with a first Bluetooth module and a communication function, a lock body and a main station, wherein the lock body comprises a main control module, a storage module, a communication module and a second Bluetooth module; the portable electronic device is provided with a software module; the portable electronic device is in communication connection with the lock body through the Bluetooth; the lock body is in communication connection with the main station; the portable electronic device is in communication connection with the main station. The attendance personnel is distinguished according to whether the address of the first Bluetooth module of the portable electronic device is matched with the information stored in the lock body or not, and the unlocking and locking signal control as well as a series of information verification before the unlocking and locking can be realized through the communication connection among the portable electronic device, the lock body and the main station so as to guarantee the safety in unlocking and locking; meanwhile, the safety intelligent lock system has an attendance checking function and a safety unlocking and locking function, and the unlocking and locking information can be effectively recorded so as to be inquired and managed conveniently.
Owner:XIAMEN HUASHU ELECTRIC POWER SCI & TECH CO LTD

High-voltage connector assembly with triple lock

The invention discloses a high-voltage connector assembly with a three-time lock. The high-voltage connector assembly comprises a connector male end, a connector shell, an unlocking sliding block anda spring bolt, according to the three-time locking mechanism, two-section type unlocking between the connector male end and the connector shell is achieved, the requirements of the market for distributed unlocking and mistaken unlocking prevention are met, the sliding type unlocking sliding block is adopted, and the hanging buckle boss of the spring bolt is prevented from being pressed under the condition of misoperation through the protection part of the sliding type unlocking sliding block; and during locking, the hanging buckle boss is lower than the second hanging buckle position, so thatmisoperation is further prevented. Compared with an existing secondary lock structure, the secondary lock structure has the advantage that unlocking can be completed only by adjusting the position ofthe unlocking sliding block without the help of extra tools. A protrusion is arranged in the middle of the spring bolt, the middle of the spring bolt is limited up and down through the connector shell, rear-end operation is prevented from affecting the front end, and locking reliability is improved.
Owner:AUTO KABEL TAICANG HARDNESS
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