A crank connection structure includes a crank and a connection pipe. The crank and the connection pipe are connected in a plug-in manner and are rotatable relative to each other. A sealing ring is provided between the crank and the connection pipe. A faucet includes a body and the crank connection structure. The connection pipe is connected to the body. For the crank connection structure and the faucet using the structure, during the installation, only the angle relationship between the crank and the connection pipe needs to be adjusted, and the sealing ring is used for sealing the crank and the connection pipe without requiring raw material belt. The angles between the faucet body and the two cranks can be simultaneously adjusted to be at same level by rotating the faucet body, which abandons the traditional way of separately adjusting the cranks for leveling, achieving faster installation and adjustment.

An injection port for a spray gun includes a first end and a second end disposed opposite the first end along a longitudinal axis. The injection port also includes an interior passage extending between the first end and the second end along the longitudinal axis, and a plurality of blind bores disposed at the first end, each blind bore extending perpendicular to the longitudinal axis.

A pivotable spray head for connection to a faucet for expelling water is described herein. The spray head includes a spray head top portion having an inlet to receive water from the faucet and a spray head bottom portion having an outlet to expel water. The spray head further includes a pivoting joint mechanism structured to pivot the spray head relative to the faucet about a pivot axis.

An assembly for connecting a sprinkler to a branch line of a fire suppression system includes a flexible conduit having one end attached to the branch line. The opposite end is attached to the sprinkler. An adapter may be positioned between the conduit and the sprinkler, between the conduit and the branch line, or between the conduit and both the branch line and the sprinkler. The adapter contains a rotating joint which prevents torque from being applied to the conduit. The adapter between the conduit and the sprinkler is received within a bracket. The bracket also receives a cross beam for securing the sprinkler relatively to the branch line.

A swivel connector for a spray gun includes a first portion, the first portion including a first interior passage that extends entirely through the first portion along a longitudinal axis and a second a second interior passage that extends along a first axis perpendicular to the longitudinal axis. The swivel connector also includes a second portion coupled to the first portion, the second portion including a third interior passage that extends entirely through the second portion along the longitudinal axis, and a fourth interior passage that extends along a second axis perpendicular to the longitudinal axis. The swivel connector also includes a connector pin coupled to both the first portion and the second portion, wherein the connector pin includes a fifth interior passage that extends along the longitudinal axis.

The present disclosure relates to free rotating hydraulic joint apparatuses and systems for a vehicle attachment. One apparatus includes a swivel component and a coupler wherein the swivel component can freely rotate through 360 degrees with respect to the coupler around one rotational axis and wherein the joint formed by the swivel component and the fluid block component is fluid tight. The fluid block component has a body with two fluid passageways therein, each passageway has an aperture for affixing vehicle-side hose ends, a second end of each passageway having an aperture on a side surface of the fluid block component and an annular passageway portion, each annular portion in fluid communication with a port provided for affixing attachment-side hose ends thereto.

A swivel connector for a spray gun includes a first portion, the first portion including a first interior passage that extends entirely through the first portion along a longitudinal axis and a second a second interior passage that extends along a first axis perpendicular to the longitudinal axis. The swivel connector also includes a second portion coupled to the first portion, the second portion including a third interior passage that extends entirely through the second portion along the longitudinal axis, and a fourth interior passage that extends along a second axis perpendicular to the longitudinal axis. The swivel connector also includes a connector pin coupled to both the first portion and the second portion, wherein the connector pin includes a fifth interior passage that extends along the longitudinal axis.

A pivotable spray head for connection to a faucet for expelling water is described herein. The spray head includes a spray head top portion having an inlet to receive water from the faucet and a spray head bottom portion having an outlet to expel water. The spray head further includes a pivoting joint mechanism structured to pivot the spray head relative to the faucet about a pivot axis.

A high-pressure rotating sealing coupling with continuous expandable ring (1) including a male hydraulic connector (2) rotating in a female hydraulic connector (4), the connectors (2, 4) including an inner duct leading into a communication chamber (10), a non-expandable sealing ring (42) being mounted freely about the male hydraulic connector (2) and being accommodated with little play in the female hydraulic connector (4), while a non-expandable ring spring (20) tends to draw the sealing ring (42) close to a ring annular bearing shoulder (14) connected to the male hydraulic connector (2) and to axially compress a continuous expandable ring (13) inserted axially between the non-expandable sealing ring (42) and the ring annular bearing shoulder (14) and having an expandable ring inner cylindrical face (15) placed in communication with the communication chamber (10).

An expansion joint for a solids return system includes a female joint portion, a male joint portion received by the female joint portion, the male joint portion and the female joint portion forming a lateral breach therebetween, a double rope seal positioned within the lateral breach, the double rope seal being configured to accommodate relative lateral movement between the female joint portion and the male joint portion, and an insulating pillow received about the male joint portion and abutting a distal end surface of the female joint portion, the insulating pillow being configured to accommodate relative axial movement between the female joint portion and the male joint portion.