20results about How to "Guaranteed self-locking" patented technology

The invention discloses an alloy die casting ultrasonic flaw detection device which comprises an operation table and an ultrasonic flaw detection host, the ultrasonic flaw detection host is fixed on the operation table, a flaw detection assembly is arranged above the operation table, and the flaw detection assembly comprises a movable frame, a mounting frame, an inclined plate, a detection probe, a ball, a cross rod and a second spring. And a mounting frame is arranged on the front side of the movable frame. According to the ultrasonic flaw detection device for the alloy die casting, in the using process of the device, when a movable frame moves downwards to drive an ejector block to move downwards to make contact with a workpiece, a coating roller makes contact with the workpiece at the moment, and the ejector block is stressed to move relative to a fixed frame and cooperates with the effects of a piston, a cylinder, a one-way air inlet valve, a one-way air outlet valve and a guide pipe; according to the coupling agent coating device, air in the cylinder can enter the coupling agent storage barrel, a coupling agent in the coupling agent storage barrel can be discharged to the coating roller under the action of air pressure, and the coating roller rolls through downward movement of the device, so that the coating effect of the coupling agent can be realized, and detection is facilitated.

The utility model provides a cable braiding machine capable of laying cables synchronously, which comprises a machine table, four corners of the lower surface of the machine table are provided with support legs, the front side of the machine table is slidably provided with two sliding doors which are staggered front and back, the upper surface of the machine table is provided with a mounting seat, and the upper surface of the mounting seat is provided with a support frame. First rotating cylinders are rotationally arranged on the upper sides of the inner walls of the left side and the right side of the supporting frame correspondingly, winding rollers are fixedly connected to the interiors of the first rotating cylinders through bolts correspondingly, and driving motors, electric control modules and wire modules are arranged on the upper sides of the left side and the right side of the supporting frame correspondingly. According to the cable braiding machine capable of synchronously laying the cable, the cable laying roller rotates in the process that the rotating frame drives the cable laying roller to rotate around the vertical center of the rotating frame, self-locking of the rotating state of the rotating frame and the cable laying roller on the rotating frame is guaranteed in the rotating process, and the cable can be rapidly and stably braided.

The invention relates to the technical field of recombined bamboo preparation, and discloses a high-toughness bamboo fiber composite recombined bamboo standby automatic drying machine which comprises a drying box, a supporting plate is fixedly connected to the interior of the drying box, a rotating ring is rotatably connected to the interior of the supporting plate, and a containing frame is fixedly connected to the inner side of the rotating ring. A drying assembly used for drying bamboo in multiple directions to improve the drying effect of the bamboo is arranged in the drying box, and a scraping assembly used for automatically scraping water in the bamboo in a reciprocating mode to improve the drying efficiency is arranged in the drying box. Through the drying assembly, under the action of swinging centrifugal force and hot air drying, the situation that multiple long-strip-shaped bamboo wood are stacked due to position movement under the conditions of rotation and hot air blowing can be effectively prevented, the long-strip-shaped bamboo wood can be better kept not to move under the action of rotation and hot air blowing drying, stacking of the long-strip-shaped bamboo wood is avoided, and the drying efficiency of the long-strip-shaped bamboo wood is improved. And the long-strip-shaped bamboos are dried more uniformly.

The utility model discloses a flour mill cover plate movable connecting device which comprises a raw material tank, one side of the raw material tank is fixedly connected with a fixing frame, the side, close to the raw material tank, of the fixing frame is provided with a first sliding groove, and a cover plate is connected into the first sliding groove in a sliding mode. A traction mechanism used for moving and dragging the cover plate is arranged on the side wall, opposite to the cover plate, of the raw material tank, a sealing ring is arranged on the side, close to the fixing frame, of the raw material tank, and an abutting mechanism used for abutting against the sealing ring is arranged on the side wall of the raw material tank. The fixing frame, the first sliding groove, the sealing ring, the clamping frames and other structures are arranged, the fixing frame and the first sliding groove are connected with the cover plate in a sliding mode, the multiple clamping frames are matched to abut against and fix the sealing ring, abutting sealing of the contact portion of the cover plate and the raw material tank can be achieved, the cover plate is convenient to install, and meanwhile the sealing effect is good. And the sealing ring can ensure the sealing of the fitting part of the cover plate and the raw material tank, so that the problem of powder leakage is avoided.

The invention discloses a bidirectional gravity-balanced energy-saving ship lift, comprising a ship lift main body, a second ship lift support is arranged in the middle of the ship lift main body, a first ship lift support is arranged on one side of the second ship lift support, a third ship lift support is arranged on the other side of the second ship lift support, a first vertical shaft is arranged in the middle of the first ship lift support and the second ship lift support, a second vertical shaft is arranged in the middle of the second ship lift support and the third ship lift support, a first ship holding box is arranged inside the first vertical shaft, and a second ship holding box is arranged inside the second vertical shaft. In this scheme, by symmetrically arranging the first ship holding box and the second ship holding box in the middle of the first vertical shaft and the second vertical shaft, two ships can pass through the ship lift at the same time, thereby improving the efficiency of ships passing the dam, and the weight of the ship holding box can be dynamically adjusted by the inlet water tank and the outlet water tank arranged on both sides of the ship holding box, and the gravity potential energy is used to drive the ship holding box to move, so as to achieve the purpose of lifting and lowering the ship and save energy.

The invention relates to the technical field of bolts, in particular to an anti-loose self-locking type fastening bolt which comprises a bolt body, a fastening nut, a locking nut set and a locking assembly. The fastening nut is connected with the bolt; the locking nut group comprises a lower locking nut and an upper locking nut; the lower locking nut is mounted above the fastening nut; the upper locking nut is mounted above the lower locking nut; the locking assembly is connected between the fastening nut and the upper locking nut; the three nuts are arranged, every two adjacent nuts are opposite in screwing direction, the upper nut, the lower nut and the middle nut move in the opposite directions to complete interlocking, the rotating groove and the telescopic locking claw are arranged between every two adjacent nuts, the screwing direction of the rotating groove is opposite to the screwing direction of the unscrewing nut, and the locking claw is clamped with the rotating groove after screwing is conducted. Each nut cannot rotate, so that self-locking and looseness prevention are realized; the problem that the whole bidirectional bolt is loosened due to the fact that a loosening space is generated between an upper nut and a lower nut under the working condition of long-term vibration is solved.

A ship provided with solar panels capable of projecting at night belongs to the field of shipborne equipment and comprises a plurality of solar panel components, projectors and a ship body, the solar panel components are fixed together in the same direction and fixedly mounted on the ship body, the projectors are fixedly mounted on two sides of the ship body, and each projector is aligned with the center of the corresponding solar panel component. The solar panel can serve as a projection curtain of the projector when being vertical, the solar panel assembly is composed of the solar panel, a stand column, an upper supporting pulley, a linear guide rail, a lead screw, a lower supporting pulley, a stepping motor and a plummer block, the linear guide rail is composed of a rail and a sliding block, and the linear guide rail and the lead screw are installed on different faces of the inner side of the stand column. A sliding block of the linear guide rail and a nut of the lead screw are fixed together through a connecting piece, an installation shaft of the solar panel is installed on an inner ring of the plummer block, and the stepping motor is installed on the motor support and connected with the lead screw. The application range of the solar panel serving as a projection curtain is expanded.

The utility model relates to the technical field of cooling water pump assembly tools, and discloses an automatically-adjusted double-point floating supporting device which comprises an installation plate, a bottom plate is installed at the bottom end of the installation plate, a plurality of clamping plates are installed on the end face of the installation plate, and water pump blanking caps are installed between the clamping plates and the installation plate. The groove of the guide block is used for installing the semicircular protrusion, the supporting seat is connected with the arc face of the semicircular protrusion through the groove, meanwhile, the cylindrical pin serves as a fulcrum of the semicircular protrusion, the semicircular protrusion rotates around the cylindrical pin, automatic alignment and simultaneous supporting are achieved, and the water pump blanking cap can be conveniently and rapidly assembled and disassembled. And the machining precision and the assembly precision are high.

The utility model provides a fast turnover tunnel lining trolley which comprises an installation base, two guide rails which are symmetrically distributed left and right are arranged between the top ends of the installation base, a plurality of sliding frames which are evenly distributed are arranged between the two guide rails in a sliding mode, and an installation frame is arranged between the upper surfaces of the sliding frames. A plurality of first auxiliary rods which are evenly distributed are arranged on the upper surface of the mounting frame, a plurality of second auxiliary rods which are evenly distributed are arranged in the middle of the upper surface of the mounting frame, a mold plate is arranged between the top ends of the first auxiliary rods and the top ends of the second auxiliary rods, and an electric control module used for driving the sliding frame to move is further arranged on the sliding frame. According to the tunnel lining trolley capable of achieving rapid turnover, the rollers can be rapidly and stably driven to rotate, meanwhile, self-locking of the positions of the rollers when the rollers stop is guaranteed, and then rapid and stable turnover of the tunnel lining trolley can be achieved.

The invention discloses an electric power tool anti-falling device for high-altitude electric power maintenance, and belongs to the technical field of electric power equipment maintenance, the electric power tool anti-falling device mainly comprises a pair of clamping assemblies, an adjusting assembly is arranged between the pair of clamping assemblies, and the adjusting assembly comprises a connecting arm fixedly connected to one side of the clamping assembly; a connecting block is fixedly connected to one side of the outer wall of the connecting arm, a sliding block is fixedly connected to one side of the outer wall of the connecting block, the two clamping assemblies move oppositely by rotating the adjusting rod, then the telegraph pole can be clamped, and the telegraph pole is connected with a safety belt worn by a maintainer through a connecting belt. The clamping assembly and the yoke plate are connected only through the connecting arm to form a semicircular structure, so that obstacles such as a support can be avoided, a maintainer can climb to a higher position, and the problem that in the prior art, the maintainer is blocked by obstacles such as a support hoop, and it cannot be guaranteed that the maintainer climbs to the higher position while the elastic rope is arranged on a telegraph pole in a sleeving mode is solved.

The invention belongs to the field of food air tightness detection, and is a canned food air tightness detection device. The canned food air tightness detection device includes a base, characterized in that a detection platform is fixedly provided on the upper side wall of the base, two columns are fixedly provided on the upper side wall of the base, a lifting device is provided on the columns, and the lifting device is used to drive the device to slide up and down, and a detection cavity is slidably provided between the columns, and a detection device is provided in the detection cavity, and the detection device is used to detect the sealing of canned food. The detection cavity is provided with a rotating cavity fixedly provided inside, and a rotating device is provided in the rotating cavity, and the rotating device is used to unscrew the canned bottle cap with poor sealing and wait for resealing. The canned food air tightness detection device can detect the canned food by forming a sealed cavity to determine whether the sealing is good. If it is determined that the sealing is poor, the canned bottle cap will be automatically unscrewed to facilitate subsequent packaging.

The invention discloses a self-locking screw, which belongs to the technical field of screws and comprises a bolt and a nut, threads are arranged on the outer side of the bolt and the inner side of the nut, the bolt is connected with the nut through the threads, a self-locking device is arranged at the bottom of the bolt, and the self-locking device comprises a fixing frame and a holding frame; the fixing frame is arranged at the bottom of the bolt. The holder is arranged outside the fixing frame. A limiting structure is arranged on the outer side of the fixing frame and can limit the moving direction of the retainer on the fixing frame, the retainer can limit movement of the nut, and it is guaranteed that the nut and the bolt are not loosened in connection. According to the self-locking screw, under the condition that the overall structure and the connecting mode of the bolt and the nut are not changed, the self-locking device is arranged at the bottom of the bolt, and the screw cannot be loosened due to vibration or external force in the using process. And the situation that the self-locking screw needs to be installed through large torque in the installation process, and the self-locking screw is prone to slipping in the disassembly process is avoided.

The utility model provides a kind of PE cloth leftover material recycling and smashing device, it is related to cloth production technical field, including diversion bin, the upper end of the diversion bin is fixedly connected with pre-extrusion assembly, the pre-extrusion assembly includes the extrusion bin fixedly connected in the upper end of diversion bin, the inside of the extrusion bin is rotatably connected with extrusion roller, the lower end of the diversion bin is welded with smashing bin, the front side surface of the smashing bin is equipped with chute, the below of the chute is provided with fixed plate, the surface of the fixed plate is installed with slide;By setting pre-extrusion assembly, by driving motor, sleeve wheel, belt drive two parallel extrusion roller rotation, can be flattened and exhaust treatment to PE cloth leftover material, effectively reduce material volume, avoid "aerial" or "stuck" when smashing, improve subsequent smashing efficiency, reduce energy consumption, material form can also be more regular, reduce the jamming situation of diversion bin and smashing bin entrance, ensure that equipment continuous stable operation.

The utility model relates to an extrusion forming device of special-shaped rubber sealing ring, including frame and horizontal setting shell on the frame, be provided with conveying extrusion subassembly on the shell, the other end of shell is provided with forming assembly, forming assembly can switch to two kinds of forms, and cooperate conveying extrusion subassembly and make the raw material of conveying into O shape sealing ring or the deep groove ball bearing sealing ring with notch, be provided with adjusting assembly on the frame, and adjusting assembly and forming assembly cooperate with each other, the utility model, conveying extrusion subassembly can convey raw materials from the one end of shell to the other end, provide stable raw material flow for subsequent forming, forming assembly can switch two kinds of forms flexibly, cooperate conveying extrusion subassembly can make O shape sealing ring or the deep groove ball bearing sealing ring with notch respectively, satisfy different sealing demand, the adjusting assembly on the frame and forming assembly cooperate with each other, realize the accurate switching of forming assembly form and can keep self -locking after switching, ensure that the forming process is stable and reliable.

The utility model relates to the technical field of railway vehicle manufacturing and maintenance equipment, in particular to bogie frame turnover equipment with a positioning function, which comprises a support frame, a height adjusting device, a position adjusting device, a clamping device, a turnover device, a positioning device and a control system. Fixing bases are installed in the supporting frame through the two height adjusting devices and the position adjusting device, rotating discs are installed on the two fixing bases through the overturning devices, the clamping devices are installed on the side walls of the rotating discs, the position of a framework is preliminarily detected through a visual recognition system, namely a camera, and the clamping devices are installed on the side walls of the rotating discs. The control system adjusts the distance between the two sets of laser range finders according to deviation information, the position of the framework is further accurately positioned, light beams emitted by the laser range finders are used for auxiliary calibration, it is ensured that the deviation of the framework in the horizontal direction and the vertical direction is controlled within + / -1 mm, and in the overturning process, the positioning device continuously monitors the position of the framework, and the positioning accuracy is improved. And the stability is always kept.

The application discloses a dynamic shaft self-locking nut, which comprises a screwing part and a locking part connected with each other, and a bevel cut is formed between the screwing part and the locking part; when the dynamic shaft self-locking nut is screwed and fastened with a bolt, the locking part is in interference fit with the bolt in a closing direction of the bevel cut to realize self-locking. Compared with a traditional self-locking nut, the dynamic shaft self-locking nut does not need to be provided with an elastic member, and the self-locking effect can be effectively improved. The application further discloses a processing method of the dynamic shaft self-locking nut, which comprises the following steps: S100, selecting a nut blank with a proper length and completing basic processing; S200, calculating an interference amount e of the dynamic shaft self-locking nut and the bolt; S300, according to the interference amount e and proper bevel cut quantity, the depth and the included angle of the required bevel cut are obtained; and S400, cutting the nut blank to obtain the required dynamic shaft self-locking nut. Through the above method, the processing of the nut blank can be simply and accurately realized, and the dynamic shaft self-locking nut meeting the requirements can be obtained.

The utility model relates to a cabin door self-locking mechanism which comprises a machine body, a front shell, a cabin door, a driving assembly, a cabin opening assembly and a self-locking assembly, the cabin opening assembly is in transmission connection with the driving assembly, and the lower edge of the cabin door is provided with a barrier strip; the cabin opening assembly comprises a rotating seat, a first driving end and a second driving end, and the first driving end and the second driving end are arranged on the two sides of the rotating seat respectively; the self-locking assembly comprises a first self-locking end, a second self-locking end and a reset tension spring, the middle of a whole formed by the first self-locking end and the second self-locking end is hinged to the inner side of the machine body, one end of the reset tension spring is connected with the second self-locking end, and the other end of the reset tension spring is connected with the machine body; the first driving end can drive the first self-locking end to rotate; the second driving end can drive the cabin door to open and close; and the second self-locking end can limit the rotation of the barrier strip in a reset state. A special cabin door opening structure is used, mechanical locking of the cabin door is unlocked while the cabin door is opened, and opening and closing actions and mechanical unlocking actions of the cabin door are simultaneously performed by using one driving motor.

The invention discloses a novel coupling and installation method, belonging to the technical field of automobile parts, which includes an output shaft arranged on a rotary transformer; a worm gear set including a worm gear and a worm gear connecting part, the worm gear and the worm gear connecting part are fixedly connected; the worm gear and the worm gear connecting part are both installed on the output shaft; the worm gear cover is located on one side of the worm gear connecting part; the worm connecting seat is located on the side of the worm gear away from the worm gear cover, and cooperates with the worm gear cover to clamp the worm gear to form a whole; the other end of the worm connecting seat is provided with an extension shaft; the worm is rotatably arranged in the worm connecting seat and meshes with the worm gear; the docking shaft is arranged on the side of the worm connecting seat away from the worm gear; the elastic coupling is located between the extension shaft and the docking shaft, and is used for connecting the extension shaft and the docking shaft. The invention controls the adjustment angle through the worm gear, the worm gear has a self-locking function, and the transmission ratio is relatively large, which can meet the possibility of fine-tuning the angle of the rotary transformer.

This utility model relates to the field of gear processing technology, and in particular to a cold forging forming device for locking differential connecting gears. The technical solution includes: a gear-cutting head movably mounted on a base, with a cutting head mounted at its output end; an indexing plate movably mounted below the gear-cutting head on the base; a Y-axis moving module mounted on the base, connected to an X-axis moving frame via a Y-axis moving frame and an X-axis moving module; a Z-axis moving module and a limiting module mounted on the X-axis moving frame; the gear-cutting head mounted on the Z-axis moving module via the Z-axis moving frame; a sliding groove and a first locking tooth on the X-axis moving frame, through which the limiting module is positioned; and a baffle on the Z-axis moving frame cooperating with the limiting module to restrict the movement distance of the gear-cutting head. This utility model, through the cooperation of a spring rod and the locking tooth, can quickly adjust the limiting position according to gears of different thicknesses, making the gear-cutting head suitable for processing gears of different specifications, thus possessing greater versatility and flexibility.

The utility model relates to the technical field of bridge gap monitoring, and discloses a millimeter-wave radar monitoring bridge gap alarm device, which comprises a fixed base, a millimeter-wave radar monitoring device is arranged on the fixed base, the millimeter-wave radar monitoring device is used for monitoring the change of a bridge gap, and an alarm system is arranged in the millimeter-wave radar monitoring device. According to the millimeter-wave radar monitoring device, the pitching adjusting assembly is arranged on the fixed base, and the detection range of the millimeter-wave radar monitoring device can be stably adjusted through the left-right adjusting assembly and the pitching adjusting assembly, so that a user can flexibly adjust the detection range of the radar according to actual requirements; due to the flexibility, the device can adapt to different bridge structures, different gap positions and different monitoring requirements, it is ensured that radar beams can be accurately aligned with bridge gaps, and therefore the problem of monitoring blind areas or misinformation caused by inaccurate installation positions in a traditional mode is solved.