43results about How to "Restricted Escape" patented technology

A variable valve device of the invention has a structure in which, as connecting means for connecting a movable cam 22 located in an outer periphery of an outer camshaft 17a and an inner camshaft 17b located inside the outer camshaft 17a, there are provided a pin-like member 24 that is movably inserted so as to penetrate the movable cam 22, the outer camshaft 17a and the inner camshaft 17b along a diametrical direction of a shaft member 17 that is formed by turnably encasing the inner camshaft 17b in the outer camshaft 17a, and an escape-preventing portion 50 disposed in the end portion of the pin-like member 24. The movable cam 22 and the inner camshaft 17b are thus connected together while preventing large press-fit load and axial force from acting on components.

The invention relates to a full-automatic lock for container securing and belongs to the technical field of container securing and locking. The full-automatic lock is characterized in that a lock head is formed by embedding a cone in a middle notch of a hook; a longitudinal section of the hook is connected with a hook head body through a thick hook shaft, the hook head body is in the shape of an approximate equilateral triangle with a fillet, the hook head body is connected with the thick hook shaft at the position approximately two thirds of the side length, a hook head and an X-direction self-locking surface are formed by the reserved part of one third of the side length, an outward protrusion in the shape of an obtuse triangle is arranged at the back of the hook shaft, and holes allowing a load-bearing pin shaft to penetrate are formed in the end portions of the hook shaft. The cone is of an upper bird head-lower bird head structure, an upper bird head is broad in mouth and large in eyes, a lower bird head is small in eyes and sharp in mouth, the upper bird head and the lower bird head share a rectangular tail parallel to the bottom surface, a groove capable of allowing a limit block to be inserted in is formed in the back of each bird head, and a return spring is arranged. The full-automatic lock has the advantages that leftward-rightward or frontward-backward movement of a container is prevented; the container is prevented from rolling over; the full-automatic lock is quite convenient to mount and use; besides, the full-automatic lock is simple in structure and low in cost, and can be widely applied to vehicle-mounted and ship containers.

The invention discloses a novel automatic-positioning pipe-sleeved-pipe connection structure and an assembling method thereof. According to the structure, by cooperating an elastic buckle on an end plug of a buffer pipe with a slot on an end plug of a guide pipe, the buffer pipe can be automatically positioned in the guide pipe when being inserted into the guide pipe, and then shrinkage of the elastic buckle is limited by a screw, so that limiting of the elastic buckle on the end plug of the buffer pipe is realized, the buffer-pipe end plug is prevented from being out of the guide-pipe end plug, and finally the expanded connection between the guide pipe and the buffer pipe prevents the relative rotation of the guide pipe and the buffer pipe. The structure realizes automatic positioning of the buffer pipe in the guide pipe, the assembling operation is simplified, and production efficiency is improved.

The invention discloses a carrier device and method for wave soldering of bulb components, and relates to the technical field of bulb component welding. The carrier device includes a bottom plate, a cover plate and a frame, the frame is fixedly connected to the bottom plate, the frame surrounds the bottom plate, and a plurality of welding holes for welding the bulb assembly are opened on the bottom plate, the shape of the welding hole matches the light bulb assembly, and the frame A snap ring assembly is arranged on the top, and the cover plate is covered on the bottom plate through the snap ring assembly. The method includes the following steps: S1, putting the contact piece and the PCB board into a plastic seat to form a light bulb assembly; S2, putting the light bulb assembly into the welding hole on the bottom plate, covering the cover plate, and pressing the cover plate tightly through the clamp spring assembly ; S3, placing the carrier device on the conveyor belt, and transferring the carrier device to the wave soldering machine for automatic wave soldering. The invention adopts the carrier device to carry out wave soldering on the light bulb assembly, which can improve the welding quality, has a high welding yield, and thus improves the welding efficiency.

The present application discloses an assembled steel structure node, which includes a node short column and a box-shaped column. The node short column is connected with a node flange, and the box-shaped column is connected with a column flange. The node method There is a waist-shaped hole on the flange, and bolts are arranged on the joint flange, and the stem of the bolt is slidably arranged in the waist-shaped hole. The stem of the bolt is threaded with a nut, and the nut is located The flange is far away from the side of the bolt head, and the side wall of the column flange is provided with a connection groove for the bolt shank to extend into. The application has the effect of improving the safety performance of steel structure nodes during installation.

The invention discloses a mowing table transmission device of a pedestrian-controlled lawn mower. The mowing table transmission device comprises a flat belt, an engine belt pulley, two cutter belt pulleys and a tensioning wheel mechanism, wherein a mechanism for preventing the flat belt from falling out of grooves is arranged on the outer side of the flat belt between the engine belt pulley and the other cutter belt pulley, and belt blocking hoods are respectively arranged on the outer sides of the two cutter belt pulleys; the upper and lower sides of the flat belt are located between the upper and lower horizontal rods of a belt support rack; the groove width of the engine belt pulley is larger than the width of the flat belt. The mowing table transmission device has the advantages that the device is simple in structure, low in cost and high in use efficiency; when the terrain clearance of a mowing table is adjusted, the flat belt can move vertically to adapt to the height change of the mowing table, and the service life of the flat belt is prolonged; the mechanism for preventing the flat belt from falling out of the grooves uses the belt support rack to prevent the flat belt from falling out of the grooves and can drive the flat belt to move up and down so as to adjust the terrain clearance of the mowing table.

This application relates to a prefabricated building, and discloses a light steel floor structure of a prefabricated building, which includes support beams for vertical load-bearing and joists for horizontal load-bearing, and an assembly opening is opened on the support beams. The joist is provided with an assembly block, and the connection between the joist and the support beam is formed by inserting the assembly block into the assembly opening, and the support beam is provided with a connecting mechanism for restricting the assembly block from coming out of the assembly opening . The supporting beams and joists of the overlapping joint of the present application can be locked during the splicing process without using fasteners to fix them one by one, which has the effect of reducing construction steps, shortening the construction period, and improving construction efficiency.

The invention discloses a friction reducing and buffering structure for a contactor. The structure comprises a contact support, a buffering piece is arranged on a collision face, the contact support makes contact with a shell on the collision face, and an elastic buffering face is formed on the buffering piece. The friction reducing and buffering structure can buffer the collision between the contact support and the shell, and reduce the friction between the contact support and the shell.