A kind of anti-pollution paper apparatus for automatic change,Be before bed body,Hou side be respectively provided with anti-pollution paper fixator,Anti-pollution paper coiler,Control anti-pollution paper coiler is equipped in bed body again and detects the retracting switch structure of the dynamic length of anti-pollution paper roll,Anti-pollution paper roll can be gripped with anti-pollution paper fixator,The expanding plate that can change urgent discharge end anti-pollution paper roll degree via hand wheel rotating is then equipped in anti-pollution paper coiler,Again anti-pollution paper coiler be equipped with motor can drive retracting end anti-pollution paper roll rotation to furl,Replace anti-pollution paper； When this creation in use,It is the control button for pressing retracting switch structure,The anti-pollution paper being laid in bed body is updated in an automated manner through anti-pollution paper coiler scrolling anti-pollution paper,Therefore can reach it is easy to use,The time saving effect that need not manually replace.一種抗污紙自動更換裝置，是在床體的前、後側各設有抗污紙固定器、抗污紙捲收器，又在床體設有控制抗污紙捲收器以及偵測抗污紙捲動長度的捲收開關構造，以抗污紙固定器可緊夾抗污紙捲，在抗污紙捲收器則設有可經由手輪轉動而改變緊迫放出端抗污紙捲程度的擴張片，又在抗污紙捲收器設有馬達能帶動捲收端抗污紙捲轉動以捲收、更換抗污紙；當本創作使用時，是按下捲收開關構造的控制按鈕，透過抗污紙捲收器捲動抗污紙來以自動化的方式更新鋪設在床體上的抗污紙，因此能達到使用方便、無須人工更換的省時功效。
