7results about How to "Fast fastening" patented technology

This utility model relates to the field of solenoid valve testing technology and discloses a solenoid valve life test bench that is easy to fix. It includes a bench body, a vertical plate fixedly mounted on the upper end of the bench body, a groove formed at the upper end of the vertical plate, a movable component slidably mounted inside the groove, and a mounting groove formed at the upper end of the movable component. A test probe connected to a multimeter is mounted inside the mounting groove. A placement plate is fixedly mounted on the upper end of the bench body, and a fastening structure is provided on the upper end of the placement plate. The fastening structure includes a fastening seat fixedly mounted on the upper end of the placement plate, a fixing plate fixedly mounted on the rear side of the upper end of the fastening seat, a movable rod movably mounted inside the front end of the fastening seat, a movable plate fixedly mounted on the rear end of the movable rod, and a spring mounted on the outer wall of the movable rod. A solenoid valve body is positioned between the movable plate and the fixing plate. This utility model discloses a solenoid valve life test bench that is easy to fix, which can speed up the fastening of the solenoid valve and accelerate the energization test of the solenoid valve.

The utility model relates to an assembly type box column and beam connecting structure, and relates to the technical field of steel structures, the assembly type box column and beam connecting structure comprises a box column and an integrally formed connecting beam assembly, and the connecting beam assembly is connected with the box column; the connecting beam assembly comprises a positioning rod, a limiting frame and a first beam, the positioning rod is arranged on one face of the limiting frame, the other face of the limiting frame is connected with the first beam, positioning holes for the positioning rod to be inserted are formed in the box-shaped column in an arrayed mode, the box-shaped column is inserted into the connecting frame, and a locking piece is connected to the connecting frame. The box-type column and beam connecting structure has the effects that connection is rapid, beam end bending moment, shearing force and axial force are effectively transmitted, rigid connection or semi-rigid connection joints are formed, a traditional welding connection mode is replaced, and the integrity and stability of box-type columns and beams in a building structure are guaranteed.

The utility model discloses detachable glass stirrer thermometer mounting structure relates to thermometer installation technical field. The utility model discloses including the reaction kettle cover, stirring subassembly, temperature measuring sleeve and temperature measuring component, still including support outer tube, first limit piece, second limit piece, outer positioning frame and inner positioning frame. The utility model discloses through the axial movement of moving ring along the guide rod of screwing limit screw rod, control first limit piece and second limit piece go up and down and move, cooperate and push the inside sliding of outer slide groove and make the push plate drive the synchronous rotation of multiple groups of rotating parts meshed with it to the inside of inner slide groove, and the top pressing of outer positioning frame is pressed to rotating part conveniently, thereby fastening temperature measuring sleeve to the temperature measuring mouth department of reaction kettle cover, and when second limit piece rotates to the perpendicular state, and the top pressing of inner positioning frame is pressed to sliding part by screwing limit bolt and going down, thereby fastening temperature measuring component to the inside of temperature measuring sleeve.

The utility model relates to the technical field of generator, and disclose a kind of wiring terminal applied to generator temperature element lead-out wire, including fixed structure, the outer wall of fixed structure is connected with assembly structure, the inside of assembly structure top is clamped with fastening structure, the fixed structure includes fixed wallboard, the inside of fixed wallboard is installed with bolt, the top of bolt outer wall is equipped with wire slot, the assembly structure includes nut, by simplifying installation into two-step operation of "thread connection+clamping pressing".First, the basic assembly is completed by the thread rotation of nut and bolt, then press down the pressing cylinder after inserting the wire end into the placement hole, fastening can be realized;When disassembling, only need to press down the pressing ring, the clamping block can be separated from the snap ring without additional tool assistance.This design greatly shortens the installation time, significantly reduces the operation difficulty, even non-professionals can quickly get started, effectively improves the efficiency and convenience of wiring work.

The locking hoop is made of a zinc-plated steel or stainless steel flat belt with the thickness of 1mm and the width of 12mm, two ends of the locking hoop are semicircular hoops, the diameter of each semicircle is the same as that of a locked pipe, the middle of the locking hoop is a straight hoop, the length of the straight hoop is equal to the center distance of the two locked pipes, and the locking hoop and the straight hoop are connected into a whole to form the long elliptical locking hoop. The bolt base is arranged at the joint of the straight hoop and the semicircular hoop, an adjusting bolt is arranged in the bolt base, a cross-shaped and straight-line-shaped groove is formed in the head portion of the bolt, a pressed threaded groove is formed in the tail portion of the flat belt and the section of the bolt base, threads of the bolt are clamped in the threaded groove, and the flat belt of the locking hoop can be tightened or loosened by rotating the bolt left and right through the screw. The two pipes can be conveniently, rapidly and reliably fastened together by clamping the two pipes through the edges of the semicircular hoops, and can also be conveniently and rapidly disassembled, and a reliable accessory is provided for mechanical assembly.

The utility model belongs to the technical field of building temporary support fixing, and particularly relates to a building temporary support adjustable fixing device which comprises two cross-shaped fasteners, each cross-shaped fastener comprises an upper half portion and a lower half portion, and the other end of each upper half portion and the other end of each lower half portion are connected with a first connecting piece and a second connecting piece respectively. Fasteners are arranged in the first connecting piece and the second connecting piece; the fastener comprises a threaded column, four movable arms are hinged to the lower end of the threaded column, barbs are arranged at the lower ends of the four movable arms, first threads are arranged on the outer wall of the threaded column, a circular through hole is formed in the middle of the threaded column, second threads are arranged in the circular through hole, the outer wall of the threaded column is in threaded connection with a first nut, and a bolt is in threaded connection with the interior of the threaded column. A pushing block is movably arranged at the lower end of the bolt and provided with a second nut. According to the cross fastener, the locking piece can be directly inserted into the round holes in the upper half part and the lower half part, and then the cross fastener can be fastened by directly using an electric wrench.

The application belongs to the technical field of fabricated building structures, and particularly discloses a fabricated system based on FRP-concrete-steel double-wall hollow components and a construction method. The system comprises a plurality of FRP-concrete-steel double-wall hollow components assembled together. The hollow component comprises, from outside to inside, an FRP pipe, a steel pipe, and a sandwiched concrete arranged between the FRP pipe and the steel pipe. The end of the hollow component is in a stepped structure with the steel pipe extending out of the FRP pipe. The extending part of the steel pipe is provided with a first connecting plate, a second connecting plate, and a T-shaped connecting plate arranged at intervals between the first connecting plate and the second connecting plate. The second connecting plates on the two fixedly connected hollow components abut against each other, and the first connecting plates or the second connecting plates on the two fixedly connected hollow components are connected by prestressed tendons. The fabricated system of the application realizes dry assembly without wet operation, significantly improves the construction efficiency, and has excellent bearing capacity, seismic performance, and structural stability.