10results about How to "Reduce impact sound" patented technology

The invention discloses an industrial target recognition device based on image processing, and relates to the technical field of industrial machinery equipment.The industrial target recognition device comprises a mobile robot chassis, protection frames are fixedly connected to the two sides of the mobile robot chassis, a fixing block is fixedly connected to the top end of the mobile robot chassis, and a robot body is fixedly installed at the top end of the fixing block; a circuit main board is fixedly installed in the robot body, a single chip microcomputer is fixedly installed on the circuit main board, an image recognition sensor is fixedly installed at the top end of the robot body, two buffer rods are driven by a protection plate to drive two limiting discs to extrude two pressure springs, and then the two pressure springs are driven by cooperation with the effect of a damper body. And the impact force borne by the protection plate can be damped and buffered, so that the electric devices and the image recognition sensor in the robot body are not prone to impact damage, and the practicability of the recognition device is further improved.

The invention relates to the technical field of vehicle chassis, in particular to a ball screw assembly and an electronic mechanical braking system, the circumferential inner wall of a nut is provided with a first threaded raceway, the circumferential outer wall of a screw is provided with a second threaded raceway, and a plurality of balls are arranged in the first threaded raceway and the second threaded raceway in a rolling manner; a plurality of commutators are uniformly and fixedly arranged on the circumferential inner wall of the nut; a through hole is formed in the inner side of the lead screw, an inner convex ring is fixedly arranged on the inner wall of the through hole, a center hole is formed in the inner side of the inner convex ring, and one end of the driving shaft is fixedly connected with the inner wall of the center hole; a piston end cover is fixedly arranged at one end of the nut, an anti-collision pin is fixedly arranged on the side face, facing the piston end cover, of the inner protruding ring, and a stop block matched with the anti-collision pin is fixedly arranged on the inner side face of the piston end cover. The anti-collision device plays a role in rotating and stopping, when the nut axially returns, the nut drives the piston end cover to return until the anti-collision pin collides with the stop block and then stops, and the lead screw or the driving shaft is prevented from axially impacting the piston end cover.

The application discloses a mute door lock assembly and belongs to the technical field of locks. The mute door lock assembly comprises a lock body, a slanting lock tongue and a main lock column which are arranged on the lock body in an extendable mode, and a lock cylinder hole is formed in the lock body. The lock body comprises a lock body and a lock cover, the lock body and the lock cover are fixedly connected through screws, mounting holes are formed in the lock body and the lock cover, a mounting column is arranged between the lock body and the lock cover, screw holes are formed in the mounting column, the mounting column is opposite to the mounting holes, the screws are connected with the screw holes through the mounting holes, and the mounting of the lock body and the lock cover is realized. A mute structure is further arranged in the lock body. The mute door lock assembly has the beneficial effects that the first magnet and the second magnet are arranged, the second magnet generates a certain repulsive force on the first magnet when the first magnet moves to the limit position, the push plate is prevented from impacting the limiting structure, i.e., the lock body, and the impact sound is reduced.

The utility model discloses a door lock. The door lock comprises a lock body and a striker which are matched with each other, the lock body comprises an installation assembly and a locking assembly arranged in the installation assembly. The locking assembly comprises a rotor arranged in the mounting assembly, a release rotor matched with the rotor, a connecting handle arranged on the release rotor and a recovery part which is arranged in the mounting assembly and can recover the rotor and the release rotor; the striker comprises an inverted U-shaped striker plate and a striker shaft which is horizontally arranged between two vertical parts of the striker plate; the striker shaft is perpendicular to the plane where the rotor and the release rotor are located. The collision bolt shaft is stabilized through the locking assembly composed of the rotor, the release rotor, the connecting handle and the restoring piece, and the purposes of reducing shaking of the door plate and improving the stability of the door plate after locking are achieved.

The utility model relates to the technical field of medical instruments, in particular to a handheld coil module for a pelvic floor magnetic stimulation therapeutic instrument, which comprises a shell and is characterized in that a boss is fixedly connected to the surface of the shell, a support column is fixedly connected to the surface of the shell, a coil is connected to the surface of the boss in an abutting mode, pouring sealant is filled in the shell, and the coil is arranged on the support column. A cover plate is fixedly connected to the top of the shell, a fixing block is fixedly connected to the surface of the cover plate, an inserting plate is connected to the bottom of the fixing block in an inserted mode, and a supporting rod is fixedly connected to the surface of the inserting plate. The inner diameter of the copper pipe used by the coil is obtained through calculation, the impedance is not obviously increased under the working frequency, cooling liquid is poured into the coil through the water pipe connector to take away Joule heat generated in the coil, the inner space of the shell is completely sealed and isolated through the pouring sealant, and the cooling effect is good. Coil mechanical deformation and impact sound caused by Ampere force can be effectively reduced.

The purpose of the present disclosure is to provide an impact rotary tool that can reduce impact sound. An impact rotary tool according to the present disclosure includes a motor (10), an output shaft (30), an impact mechanism (4), an inner cover unit (3), and a main body housing. The impact mechanism (4) is configured to apply an impact force to the output shaft (30) in response to rotation of the motor (10). The main body case accommodates the motor (10), the impact mechanism (4), and the inner cover unit (3). The impact mechanism (4) includes hammer members (40A, 40B) that strike impact receiving portions (32, 33) provided for the output shaft (30) in response to rotation of the motor (10). The inner cover unit (3) covers at least the impact mechanism (4).

The utility model relates to a key structure. The key structure comprises a seat body; the pressing part is arranged on the seat body and is used for bearing external force; the movable part is connected with the pressing part so as to be linked with the pressing part; the feedback component is coupled with the movable component, and the feedback component and the pressing component are respectively arranged on two opposite sides of the movable component; when external force is applied to the pressing part, the pressing part drives the movable part to move, so that the movable part and the feedback part are coupled to the first position and move to the second position, and pressing feedback is provided. According to the key structure, clear paragraph sense pressing feedback is provided for a user when the user presses the key through the feedback component, the impact force is further reduced through the elastic element, the impact sound is further reduced, and meanwhile the mute effect is provided.

The utility model discloses an anti-falling back row safety belt mortise lock mounting plate which comprises a connecting rod, a connecting seat piece is arranged at the bottom of the connecting rod, the rear end of the connecting seat piece is in contact with a connecting groove block, a mounting plate body is mounted at the rear end of the connecting groove block, a rubber insertion block is mounted at the front end of the connecting groove block, and the rubber insertion block is connected with the connecting seat piece. A clamping block is arranged at the front end of the bottom of the connecting groove block, a mounting nut is inserted into the connecting seat piece, and a clamping hole and a positioning hole are formed in the connecting seat piece. Through the arrangement of the anti-falling structure, the connecting seat piece at the bottom of the connecting rod is inserted between the connecting groove block and the clamping block in the mounting plate body, the clamping block is clamped with the clamping hole formed in the connecting seat piece, and the rubber insertion block at the front end of the connecting groove piece penetrates through the positioning hole formed in the connecting seat piece; and then the mounting nut is inserted from the front end of the connecting seat sheet to be connected with the mounting plate body and the connecting groove block, so that the anti-falling function is realized.

The invention relates to a novel high-strength noise-reduction water cup holder assembly which comprises a water cup holder shell installed on a handrail and a telescopic cup holder panel connected to the interior of the water cup holder shell in a telescopic mode, two cup holder holes are formed in the telescopic cup holder panel, and a cup holder bottom support is hinged to the lower portion of the telescopic cup holder panel. The cup holder bottom support is used for bearing the bottom of a water cup placed in the cup holder hole, metal plates are embedded in the telescopic cup holder panel and the cup holder bottom support, the cup holder bottom support is formed by thermoplastic rubber and plastic alloy in a double-shot molding mode, and a noise reduction cotton block is embedded in the end, away from the hinge shaft, of the cup holder bottom support. The telescopic cup holder has the advantages that the injection molding metal plates are embedded in the telescopic cup holder panel and the cup holder bottom support, and the strength of the whole cup holder is improved. The cup holder bottom support is made of TPE + PC / ABS double-shot molding, namely the upper end face of the cup holder bottom support is made of soft thermoplastic rubber, the lower end face of the cup holder bottom support is made of plastic alloy, and the impact sound of placed objects and the bottom plate is reduced through the soft thermoplastic rubber. The bearing capacity is improved through the plastic alloy.