A kind of pet drinking-water header assembly,Its main feature drink water described in what tube socket system include tube socket ontology,Department of assembly,Positioning edge,Pulling part,At least an amplification portion and two stop edges are formed,Wherein the system, department of assembly forms what tube socket body peripheral in undergauge kenel,The arc clamp arm for being capable of providing institute's projection in front of a fixture fixes clamping； Wherein the system, amplification portion forms region above or below the what department of assembly middle section in recess kenel,And department of assembly's extended position is defined with respect to what amplification system, portion in narrow contracting state and is formed with a narrow contracting face domain； And wherein,The arc clamp arm system of projection cooperates the amplification portion and narrow contracting face domain and is formed with a wide expansion butting section and a narrow clamping part in front of the fixture,When constituting arc clamp arm fixing clamping department of assembly,System enables width expansion butting section by covering the what department of assembly and amplification portion,And the narrow clamping part then extends by covering the what narrow contracting face domain； Thereby,So that the width of the narrow clamping part can be reduced by the space kenel in the narrow contracting face domain,To promote the pliability of the narrow clamping part structure,It can be more easy when enabling disassembly arc clamp arm,And increase by the amplification portion it is wide expand butting section contact against area,The stability of structure when promoting the clamping of arc clamp arm,Use the double effects for reaching and having both disassembly convenience and assembling stability.一種寵物用飲水管座裝置，其主要特點在於所述飲水管座係包括管座本體、裝配部、定位緣部、扳動部、至少一擴增部以及二止擋緣所組成，其中該裝配部係呈縮徑型態形成於管座本體外周，能夠提供一夾固座前方所凸設之弧形夾臂卡固夾持；其中該擴增部係呈凹陷型態形成於該裝配部中段的上方或下方區域，且使得該裝配部延伸位置相對於擴增部係呈窄縮狀態界定形成有一窄縮面域；且其中，所述夾固
