The present disclosure discloses a threaded nut. The threaded nut comprises a body, a plurality of threaded blocks, and a pushing cover. The body comprises a first through hole and a mounting cavity connected to the first through hole. The plurality of threaded blocks is configured to move in the mounting cavity in a radial direction. An inner wall of each of the plurality of threaded blocks is disposed with an internal thread, and an outer wall of each of the plurality of threaded blocks is disposed with a first inclined surface and a first straight surface. The pushing cover is disposed with a second through hole, at least one second straight surface, and at least one second inclined surface.

The present disclosure disclosures a mounting and dismounting nut structure. The mounting and dismounting nut structure comprises a first body, a second body, a plurality of threaded blocks, and a limiting member. Inner walls of the plurality of threaded blocks comprise internal threads, and outer walls of the plurality of threaded blocks comprise second inclined surfaces. When the mounting and dismounting nut structure surrounds the threaded rod and is pushed towards a countertop, the plurality of threaded blocks move toward a center axis of the plurality of threaded blocks, and the second body rotates to drive the plurality of threaded blocks to be locked with the threaded rod. When the plurality of threaded blocks is locked with the threaded rod, the limiting member supports the plurality of threaded blocks in an axial direction of the plurality of threaded blocks.

A nut assembly is disclosed, including: a first nut provided with an accommodating cavity; a second nut provided with a collar portion at one end, where the collar portion is movably inserted in the accommodating cavity, and at least one notch is formed on a side wall of the collar portion; an squeezing structure, where when the first nut and the second nut move close to each other, the extrusion structure is capable of squeezing the collar portion to shrink and close; and an anti-dropping structure, where the anti-dropping structure is capable of restricting the collar portion from dropping out of the accommodating cavity.

A device for securing threaded rod relative to concrete and plywood forms is provided. The device can include a housing with a securement portion and a plurality of plungers to engage with the threaded rod. The securement portion can be slidably received in a base configured to be seated on a setting structure. Fasteners can secure the device to the setting structure. A tapered portion of the housing can engage the plungers to secure a threaded rod.

A separation device for a spacecraft or launcher comprising a nut divided into at least two nut portions locked to each other by a locking device in a locking position. A releasing device is arranged to switch the locking device from the locking position to a releasing position. The separation device comprises at least two bearing elements arranged between the locking device and the nut. The nut comprises an outer envelope surface which comprises as many indentations as the number of bearing elements and locking surfaces between the indentations. In the locked state each bearing element is jammed between the locking surface and an inner envelope surface of the locking device and in the released state each bearing element is positioned facing the indentations.

A faucet fixation system includes a fastener configured to couple to a faucet, and a connector. The connector includes a base and a nut assembly. The base includes a bore. The nut assembly is disposed in the bore around a portion of the fastener, and includes a first locking member, which has a first threaded portion and a first actuating portion, and a second locking member, which has a second threaded portion and a second actuating portion. In a locking position of the connector, the first and second threaded portions engage threads of the fastener to prohibit relative translational movement between the connector and the fastener while allowing the connector to rotate along the threads of the fastener. In a non-locking position of the connector, the first and second threaded portions disengage the threads of the fastener to allow translational movement of the connector relative to the fastener.

A quick action nut and a threaded fastener assembly including the quick action nut are proposed in the present invention. The quick action nut includes a nut housing, a control operating member, and at least two moving blocks movably connected inside the nut housing. A first through hole having a first hole axis is provided on the nut housing for a screw to pass through. Radial slide ways are provided on the nut housing for the moving blocks to move in a direction perpendicular to the first hole axis. The radial slide ways and the moving blocks have the same quantity, are matched in a one-to-one correspondence, and are distributed around the first hole axis. Threads are provided on the moving block to form or not form a threaded hole structure that is matched with the screw.

Fluid product dispenser having a reservoir (R) with a threaded neck (R1) forming an external helical thread (R2), a closure element (T) having a threaded skirt (F1) forming an internal helical thread (F2), and a band (H) engaging around the threaded skirt (F1). The skirt has tabs (F11), each forming a segment (F21) of the internal helical thread (F2). The fastening member (F) has an angular indexing mechanism for positioning it with respect to the external helical thread (R2) with a determined angular orientation, and the segments (F21) of the internal helical thread (F2) of the threaded skirt (F1) come into corresponding threaded contact with the external helical thread (R2) of the neck (R1) in the final assembly position.

A separation device for a spacecraft or launcher, separation device being movable from a locked state, in which the separation device is arranged to lock onto a component of a spacecraft or launcher, to a released state, in which component is released, separation device including: an inner housing divided into at least two portions for locking onto component of spacecraft or launcher, and a locking arrangement arranged to move between a locking configuration and a releasing configuration, wherein the locking configuration is such that said at least two portions of inner housing are prevented from separating, wherein said locking arrangement includes: a first part arranged to at least partially enclose said at least two portions of inner housing when locking arrangement is in the locking configuration.

A device for securing threaded rod relative to concrete and plywood forms is provided. The device can include a housing with a securement portion and a plurality of plungers to engage with the threaded rod. The securement portion can be slidably received in a base configured to be seated on a setting structure. Fasteners can secure the device to the setting structure. A tapered portion of the housing can engage the plungers to secure a threaded rod.