A fluid injector for connecting a connection port of a container or tank includes a housing and a transmission mechanism disposed in the housing. The housing has a fluid inlet and a fluid outlet surrounded by an annular wall. A control valve is provided in the housing for opening and closing the fluid inlet. One end of the transmission mechanism is connected to the control valve, and another end of the transmission mechanism is connected to a movable post passing through the annular wall. When the control valve opens or closes the fluid inlet, the transmission mechanism is driven by the control valve, and the movable post extends out of the annular wall to be engaged with the connection port or retracts into the annular wall, thereby determining the connection state of the fluid injector and the connection port and ensuring that the movable post is exactly controlled.

A quick connect fluid connector that is provided with sealing and gripping feature that are able to tolerate variations in a tube of a second fluid system to which the fluid connector connects. The fluid connector tolerates the variations while maintaining the sealing and gripping at high fluid pressures through the fluid connector. In one embodiment, the fluid connector may also be provided with an RFID tag to verify that the fluid connector is properly connected to the tube.

A diesel fuel cross-drop prevention kit that provides a multitude of couplings and fittings designed only for a single type of fuel. The kit includes a drop-elbow coupler, a storage-tank inlet tube, a primary key slot, a primary key protrusion, a retractable pull pin, a hose, a gravity-drop tube fitting, a secondary key slot, and a secondary key protrusion. The primary key slot traverses into an internal surface of the drop-elbow coupler. The primary key protrusion is externally and laterally connected to the storage-tank inlet tube. The storage-tank inlet tube is positioned within the drop-elbow coupler with the primary key protrusion being positioned within the primary key slot. The secondary key slot traverses into a first female coupler tube of the hose. The secondary key protrusion is externally connected to the gravity-drop tube fitting. This allows the first female coupler tube to fit over the gravity-drop tube fitting.

A quick connect fluid connector that is provided with sealing and gripping feature that are able to tolerate variations in a tube of a second fluid system to which the fluid connector connects. The fluid connector tolerates the variations while maintaining the sealing and gripping at high fluid pressures through the fluid connector. In one embodiment, the fluid connector may also be provided with an RFID tag to verify that the fluid connector is properly connected to the tube.

This disclosure relates to an irrigation system pipe joint or span coupling, which can connect a span of an irrigation system to another structure. In examples, the joint can include various components that attach an end of a first pipe or joint to an end of a second pipe or joint. For example, the end of the first joint can include a receiver plate, which can include a recess with a bushing. In addition, the end of the second joint can include a post, hook, or other elongated member that, in order to connect the first joint to the second joint, is insertable into the bushing.

A diesel fuel cross-drop prevention kit that provides a multitude of couplings and fittings designed only for a single type of fuel. The kit includes a drop-elbow coupler, a storage-tank inlet tube, a primary key slot, a primary key protrusion, a retractable pull pin, a hose, a gravity-drop tube fitting, a secondary key slot, and a secondary key protrusion. The primary key slot traverses into an internal surface of the drop-elbow coupler. The primary key protrusion is externally and laterally connected to the storage-tank inlet tube. The storage-tank inlet tube is positioned within the drop-elbow coupler with the primary key protrusion being positioned within the primary key slot. The secondary key slot traverses into a first female coupler tube of the hose. The secondary key protrusion is externally connected to the gravity-drop tube fitting. This allows the first female coupler tube to fit over the gravity-drop tube fitting.

A quick connect fluid connector that acts as the connection between a filling line and a gas cylinder for use in gas filling and/or evacuation processes. The fluid connector supplies a gas or vacuum to one or more typical sealing zones of the fluid connector to create one or more pressure differential zones having a pressure that is greater than ambient pressure to act as a barrier to prevent ingress of contaminants into the primary flow of gas through the fluid connector or less than ambient pressure to prevent egress of gas from the primary flow of gas into the surrounding environment.

A rotate-to-press inflation adaptor is provided for use with an English valve and includes a valve connector having a side surface recessed inwardly to form a positioning cavity having an inside surface in which slide channels are formed and two opposite ends respectively forming a valve opening and a coupler opening in communication with the positioning cavity. The coupler includes an air charging hole extending axially therethrough and an outer surface on which an external thread and two slide blocks are formed for being slidably received in the slide channels for reciprocal movement. The rotary knob has a through hole in which an internal thread is formed and the knob body is fit over and combinable with the valve connector in a rotatable manner with the internal and external threads engaging each other. An air tube is connected to the coupler.

A rotate-to-press inflation adaptor is provided for use with an English valve and includes a valve connector having a side surface recessed inwardly to form a positioning cavity having an inside surface in which slide channels are formed and two opposite ends respectively forming a valve opening and a coupler opening in communication with the positioning cavity. The coupler includes an air charging hole extending axially therethrough and an outer surface on which an external thread and two slide blocks are formed for being slidably received in the slide channels for reciprocal movement. The rotary knob has a through hole in which an internal thread is formed and the knob body is fit over and combinable with the valve connector in a rotatable manner with the internal and external threads engaging each other. An air tube is connected to the coupler.

The present disclosure relates to a connecting apparatus for connecting fluid-conducting lines comprising a first fluid-conducting line having a first connecting section, a second fluid-conducting line having a second connecting section, and a retention collar for fixing the connecting sections together. The second connecting section can be introduced axially into the first connecting section to provide a fluidic connection between the first and second fluid-conducting line. The retention collar has first retaining projections designed to engage into a first locking contour on the outer surface of the first fluid-conducting line. The retention collar has second retaining projections designed to engage into a second locking contour on the outer surface of the second fluid-conducting line. The first retaining projections engage into the first locking contour. The second retaining projections engage into the second locking contour to limit an axial displacement of the first connecting section relative to the second connecting section.