41results about How to "Realize reverse self-locking" patented technology

The invention provides an adjustable tray warehouse which comprises a tray frame (1), a width adjustment mechanism and a depth adjustment mechanism, wherein the tray frame (1) comprises a left side wall (2), a right side wall (3) and a rear side wall (4); the width adjustment mechanism is used to adjust the distance between the left side wall (2) and the right side wall (3); and the depth adjustment mechanism is used to adjust the depth of the tray frame (1). The width and the depth of the adjustable tray warehouse are adjustable, and the warehouse can be used to store trays with different specifications.

The invention relates to a manual and automatic dual-mode rotating device and computer equipment. The manual and automatic dual-mode rotating device comprises a center shaft driving an object to rotate, a compound worm gear sleeving an excircle of the center shaft and capable of adjusting holding force, a self-locking worm meshed with the worm gear, and a motor driving the self-locking worm to rotate. The device solves the problem that when external torsion (a manual rotating mode) is applied onto the motor with a workload (an automatic rotating mode), the motor is not influenced by the external torsion, so that the motor is avoided from damage in the manual rotating mode. The manual and automatic dual-mode rotating device and computer equipment are applied to the field of rotating devices.

The invention discloses a fixed-caliper disc type electronic parking brake, which comprises a sequentially connected driving motor, a first deceleration mechanism, a second deceleration mechanism and a third deceleration mechanism, and the output torque of the driving motor is amplified after three stages of deceleration. The three-stage reduction mechanism is connected with a motion conversion mechanism, which converts the circular motion output by the third reduction mechanism into a linear motion. The motion conversion mechanism is provided with two sets, and each set of motion conversion mechanism is connected to a friction plate. Driven by the motion conversion mechanism, the sheet can move linearly to clamp the brake disc. The fixed caliper disc type electronic parking brake provided by the present invention has the advantages of simple structure, small space occupation, easy arrangement, short braking response time, little physical exertion for the driver, simple start-up operation on a slope, and high safety. The invention also discloses an automobile, a motorcycle, a modified car and a racing car with an internal combustion engine as a power source.

The invention discloses a goods delivery device of a vending machine goods channel.The goods delivery device comprises a drive motor, a worm, a worm gear, a cylindrical gear, an output gear, a circuit board, a main control panel and a block piece; a motor shaft of the drive motor is connected with the worm, the worm is meshed with the worm gear, a coaxial gear on the worm gear is meshed with the cylindrical gear, a coaxial gear on the cylindrical gear is meshed with the output gear, and the output gear is provided with a gear connecting piece; the main control panel is connected with the circuit board, the circuit board is connected with a microswitch and the drive motor, and the microswitch is provided with an elastic sheet; the block piece is arranged on the plane of the output gear, and the position of the elastic sheet and the position of the block piece meet the requirement that a rotating circle formed by the rotating center of the block piece and the rotating center of the output gear intersects with the elastic sheet.According to the goods delivery device, the structure is small and exquisite, a gear box is small in size, the occupied space is small, the goods storage space of the goods channel is increased, disassembly and assembly are convenient, the resource utilization rate of the gear box is increased, and the maintenance cost is reduced.

The invention discloses a thin-walled parts turning fixture, which comprises a cylindrical clamping body. The clamping body includes an intermediate clamping body, a rear cover plate fixed on the rear end surface of the intermediate clamping body, and a front cover fixed on the front end surface of the intermediate clamping body plate, a stepped surface is provided between the front outer peripheral surface of the intermediate folder body and the rear outer peripheral surface of the intermediate folder body, and cylindrical positioning pins and diamond-shaped positioning pins are arranged on the stepped surface; the front part of the intermediate folder body passes through After the annular chassis of the thin-walled parts is to be processed, the annular chassis is matched with the step surface, and the cylindrical positioning pin and the diamond-shaped positioning pin on the step surface are respectively inserted into two of the three holes on the annular chassis; It is provided with an inner support mechanism and a pressing plate mechanism that cooperate with each other to realize the fixing of the thin-walled parts to be processed. The invention can well solve the positioning or clamping of the thin-walled parts to be processed and the deformation in the processing process, thereby ensuring the processing accuracy requirements of the thin-walled parts to be processed.

The invention discloses a multilateral well completion pipe string reentry leader which relates to the technical field of manufacturing of downhole tools of the petroleum and natural gas industries. The multilateral well completion pipe string reentry leader comprises a central pipe, an upper body, an elastic claw, a lower body, a horse tooth-shaped ring and an adjustment ring, wherein the upper body is sleeved outside the central pipe and connected with the central pipe together, and the lower body is sleeved outside the central pipe and connected with the central pipe together; the upper end of the elastic claw is of a conical elastic claw structure, and the elastic claw is positioned between the upper body and the lower body and can be axially slid between the upper body and the lower body; the horse tooth-shaped ring is arranged between the elastic claw and the central pipe; and the adjustment ring is arranged between the elastic claw and the central pipe below the horse tooth-shaped ring. The multilateral well completion pipe string reentry leader has the advantages of novel conception and simple structure, and the technical problem in the prior art that when the multilateral well completion pipe string is sent into a multilateral well hole, the completion pipe string cannot be correctly judged whether to pass through a multilateral well window in real time through the change of the suspending weight of the pipe string is solved.

The invention relates to a stepless telescopic mechanism and a stepless telescopic screwdriver. Firstly, a containing cavity is formed in a connecting rod and a connecting handle is arranged in the containing cavity so as to form the telescopic mechanism, the connecting handle is arranged in different depth of the containing cavity, so that the overall length adjustment can be realized; secondly,a self-locking body and a self-locking part are arranged, the self-locking body is arranged between the self-locking part and the connecting handle, an inclined abutting surface is arranged on the self-locking body, so that the single-direction pulling can be realized, and meanwhile, in the direction opposite to the pulling direction, the self-locking body is driven by the friction force of the connecting handle, the self-locking body abuts against the inclined and narrowed abutting surface, the reverse self-locking is realized, so that a single-direction locking action force is provided.

The invention relates to the technical field of face recognition machines, and discloses a convenient face recognition device, which includes a box, the inner wall of the box is provided with a vertical T-shaped slot, and the inner wall of the T-shaped slot is slidably connected with a T-shaped block. , one end of the T-shaped block located outside the T-shaped slot is fixedly connected with a mounting plate, the top of the mounting plate is provided with a rotating hole arranged in a vertical direction, the bottom of the rotating hole is provided with a mounting hole, and the inside of the rotating hole is provided with a worm. The top is located outside the rotating hole, and is fixedly connected with a knob. The bottom of the worm is connected to the inner bottom of the mounting hole through the rotating shaft. The inner wall of the mounting hole is connected to the rotating rod arranged in the horizontal direction through the rotating shaft. A worm gear is connected, and the worm gear is meshed with the worm, the spur gear is fixedly sleeved on the side wall of the rotating rod, and the top of the mounting plate is provided with a chute communicating with the mounting hole. This convenient face recognition device can provide identity verification in any public place at will, and is convenient for mobile transportation.