A dual cam lever hose clamp may comprise: first and second cam lever clamps and upper and lower clamp halves. The cam lever clamps may move between a retaining position and release position. The upper and lower clamp halves may form a collar when opposing ends of the clamp halves fasten together via the cam lever clamps. The first cam lever clamp may comprise a first linkage pivotally coupled to a first end of the lower clamp half and a first cam lever pivotally coupled to the first linkage. The second cam lever clamp may comprise a second linkage pivotally coupled to a second end of the lower clamp half and a second cam lever pivotally coupled to the second linkage. The first and second cam lever clamps may comprise cam levers that cammingly engage cam locking surfaces on the upper clamp half to fasten and tighten the collar.

A dual cam lever hose clamp may comprise: first and second cam lever clamps and upper and lower clamp halves. The cam lever clamps may move between a retaining position and release position. The upper and lower clamp halves may form a collar when opposing ends of the clamp halves fasten together via the cam lever clamps. The first cam lever clamp may comprise a first linkage pivotally coupled to a first end of the lower clamp half and a first cam lever pivotally coupled to the first linkage. The second cam lever clamp may comprise a second linkage pivotally coupled to a second end of the lower clamp half and a second cam lever pivotally coupled to the second linkage. The first and second cam lever clamps may comprise cam levers that cammingly engage cam locking surfaces on the upper clamp half to fasten and tighten the collar.

An example band winding type hose clamp may include: a body part engaged with and fixed to one end of a band; a winding part which is rotatably coupled to the body part, into which the other end of the band surrounding the outer periphery of the hose is inserted, and which is rotated by an external force to wind the other end of the band, whereby the band presses and closely contacts the outer periphery of the hose; and a cover part which is hingedly coupled to the body part spaced apart from the winding part while one end of the cover part is engaged with the winding part, and which selectively restrains the rotation of the winding part so as to maintain the elastic force of the band pressing the outer periphery of the hose.

An example band winding type hose clamp may include: a body part engaged with and fixed to one end of a band; a winding part which is rotatably coupled to the body part, into which the other end of the band surrounding the outer periphery of the hose is inserted, and which is rotated by an external force to wind the other end of the band, whereby the band presses and closely contacts the outer periphery of the hose; and a cover part which is hingedly coupled to the body part spaced apart from the winding part while one end of the cover part is engaged with the winding part, and which selectively restrains the rotation of the winding part so as to maintain the elastic force of the band pressing the outer periphery of the hose.

A piping joint connects a resin tube to a connection pipe having a protrusion formed on an outer peripheral surface of a distal end portion of the connection pipe. The piping joint includes a housing press-fitted into the resin tube and an elastically extendable and contractible seal member into which the connection pipe is inserted such that sealing is performed between the connection pipe and the seal member. The housing has a first housing portion positioned in one end portion and having an outer peripheral surface side press-fitted into the resin tube and a second housing portion positioned in the other end portion. The seal member has a first seal portion inserted on an inner peripheral surface side of the second housing portion.

A quick connector coupling for making a severable connection with a male member and a female tube in a fluid line includes a connector body having a through bore for receiving the male member having a tubular shape sized to extend into the through bore of the connector body and having an upset, a retainer releasably securing the male member within the connector body, and a verifier including an antenna having a contact point and moving between a latched position and an unlatched position inside the connector body. The connector body includes a radio frequency identification (RFID) chip having a signal, which is enabled to read through the antenna when the contact point of the antenna contacts the RFID chip of the connector body in the latched position of the verifier.

A quick connector coupling for making a severable connection with a male member and a female tube in a fluid line includes a connector body having a through bore for receiving the male member having a tubular shape sized to extend into the through bore of the connector body and having an upset, a retainer releasably securing the male member within the connector body, and a verifier including an antenna having a contact point and moving between a latched position and an unlatched position inside the connector body. The connector body includes a radio frequency identification (RFID) chip having a signal, which is enabled to read through the antenna when the contact point of the antenna contacts the RFID chip of the connector body in the latched position of the verifier.

A pipe joint with which loss of rotational force added by electric tools or man power is made remarkably small, and a fastening ring can be diminished with small torque, plural fastening rings 6 vertically wound for a predetermined center angle of 360° to 480°, a guiding member 8 holding the fastening rings 6 as to restrict falling of the fastening rings 6 and allow diminishing deformation, an approximately triangular toggle member 11 disposed to protrude in a radial outer direction from the fastening rings 6 in a pipe unconnected state, and a bolt-nut connection X for moving a central peak portion of a toggle member 11 in a radial inner direction as to reduce a height dimension of the toggle member 11, are provided.

A pipe joint with which loss of rotational force added by electric tools or man power is made remarkably small, and a fastening ring can be diminished with small torque, plural fastening rings 6 vertically wound for a predetermined center angle of 360° to 480°, a guiding member 8 holding the fastening rings 6 as to restrict falling of the fastening rings 6 and allow diminishing deformation, an approximately triangular toggle member 11 disposed to protrude in a radial outer direction from the fastening rings 6 in a pipe unconnected state, and a bolt-nut connection X for moving a central peak portion of a toggle member 11 in a radial inner direction as to reduce a height dimension of the toggle member 11, are provided.

The present invention discloses a sleeve for sleeving on an object, which includes: a first body portion, a second body portion, and a first groove. The first body portion has a first reception portion, and the first reception portion has a first notch, and the first notch is provided with a first fastening member. The second body portion is coupled to the first body portion. One end of the first groove is disposed at an adjacent position between the first notch and the second body portion, and the other end of the first groove extends to an appropriate position along an outer edge of a connection between the first body portion and the second body portion. The first groove is separated from the first reception portion by a first thin wall. One end of the object penetrates through the first reception portion, and the first notch is pressed by the first fastening member so that the first groove is broken along the first thin wall to form a first broken opening. The first notch is pressed and tightened by the first fastening member so that the first body portion and the object are fixed to each other.