56results about How to "Won't loosen and fall off" patented technology

The invention discloses a mechanical anti-loose compacting device, which mainly consists of a pressing block (1), an anti-loose plate (2), a compacting screw (3), a compacting nut (4) and the like, and is characterized in that the middle part of the pressing block (1) is provided with a threaded hole, the outer edge of the pressing block (1) is fixedly provided with the anti-loose plate (2), and the compacting screw (3) is used for compacting a compacted object (5) and the pressing block (1) through the anti-loose plate (2) via the compacting nut (4). Due to the adoption of the structure, an anti-loose goal is achieved due to the fact that the part, contacted with the threaded hole in the anti-loose plate, of the compacting nut and the compacting screw is processed into a thread-free cylindrical surface, and the compacting screw is prevented from loosening and falling off through two anti-loose insurance measures, so that the technical goals of convenience, safety and reliability are realized.

The invention discloses an intelligent grouting sleeve which comprises a first sleeve and a second sleeve. A first clamping pipe is mounted at one end of the first sleeve, a second clamping pipe is mounted at the other end of the first sleeve, a first connecting pipe is mounted at the top of the first sleeve, a first inserting rod is mounted at the bottom of the first sleeve, a first slurry port is mounted on one side of the first connecting pipe, a first anti-shedding rod is rotatably connected on each of two sides of the inner wall of the first connecting pipe through a hinge, a first springis mounted between each first anti-shedding rod and the first connecting pipe, and a first clamping head is mounted at the bottom of the first inserting rod. By arranging the first clamping pipe, a first positioning rod, a first tension spring, a second positioning rod, a second clamping pipe, a second tension spring, a third positioning rod, a third clamping pipe, a third tension spring, a fourth positioning rod, a fourth clamping pipe and a fourth tension spring, when a user adds concrete grout, rebar displacement is prevented, wrong processing is avoided, and device scrappage rate is lowered.

The invention relates to a novel pressure enclosing nut device which comprises a pressure enclosing nut and screws, wherein the pressure enclosing nut is provided with grooves in the circumference direction; and the end surface of the pressure enclosing nut is provided with two screw holes. Compared with the prior art, the pressure enclosing nut device has the advantages of bearing certain pressure in a long time and maintaining not to be loose and the like.

The invention provides lifting hooks for a plate type catalyst unit block, belonging to the mechanical field and relating to a lifting tool. The aim of the invention is that hook tongues are inserted in spaces among catalyst plates arranged in a unit frame and are used for clamping the folding edges at the end part of the unit frame for lifting. A lifting beam is fixedly arranged on a lifting frame; the lifting hooks are connected onto the lifting frame by shafts; the outer sides of the lifting hooks are provided with lifting hook body protection grooves fixedly arranged on the lifting frame; the bottom ends of the lifting hooks are provided with the hook tongues; a rope wheel is connected on a protection frame by a shaft; the protection frame is fixedly arranged on the lifting beam; the lifting hooks are provided with lock sleeve clamping grooves; a return spring is hung on a hook seat on the lifting hooks by hangers; and the lifting hooks and the lifting hook body protection grooves are sleeved with hook tongue locking sleeves. According to the lifting hooks for the plate type catalyst unit block provided by the invention, the lifting process is stable, firm and safe; as a reserved space is omitted, the detention vortex of smoke in the reserved space is reduced, and the blockage caused by dust accumulation is avoided; the lifting hooks for the plate type catalyst unit block also can be applied to lifting of special articles with limited overall sizes; in the past, when being lifted in a workshop, barrel-shaped articles with smooth outlines are frequently bound by ropes for horizontal lifting or oblique lifting, so that the traditional operation is time-consuming and unsafe; however, the lifting hooks of such a structure are safe and fast to apply.

The invention discloses a large damping spring vibration isolator, comprising a base, a bottom plate, a connecting plate and a butt-jointing plate. A connecting rod is fixedly connected to the inside of the base, and a support plate is connected through the surface of the connecting rod. An adjusting rod is connected through the inside of one end of the adjusting rod, a rotating block is fixedly connected to the bottom of the adjusting rod, a base is movably connected to the surface of the rotating block, and a support plate is connected to the bottom of the bottom plate. For the large damping spring vibration isolator, during the use of the device, after the device is installed in the corresponding position, the adjusting rod is rotated, and the threaded connection structure between the adjusting rod and the supporting plate makes the supporting plate slide on the connecting rod, and at the same time The vertical height of the bottom plate is changed, so that the overall vertical vertical height of the device is changed, so that the device can be more conveniently adjusted according to the installation scene of the device, avoiding the traditional staff inserting the steel sheet into the bottom of the device to increase the size of the device.