A syringe plunger clamping device (100) for syringe pumps comprises a housing (110), a lever (120), a connecting rod (130), a limiting member (140), an elastic member (150), a clamping jaw (160), and a button (170). The middle part of the lever (120) is rotatably connected to the housing (110), the connecting rod (130) slidably runs through the housing (110), and one end of the connecting rod (130) is movably connected to one end of the lever (120). The limiting member (140) is secured on the connecting rod (130), the elastic member (150) is sleeved on the connecting rod, and two ends of the elastic member respectively abut against the inner wall of the housing (110) and the limiting member (140). The clamping jaw (160) is provided on the housing (110) and is fixedly connected to the end of the connecting rod that is far away from the lever, and the clamping jaw is engaged with the outer surface of the housing so as to clamp the plunger of a syringe. The button (170) slidably runs through the housing (110), and is in contact with the end of the lever that is far away from the connecting rod. The button can slide towards the inside of the housing to push the lever to rotate, so as to drive the connecting rod to slide towards the outside of the housing. The syringe plunger clamping device is easy to operate.La présente invention concerne un dispositif de serrage de piston de seringue (100) pour des pompes-seringues qui comprend un boîtier (110), un levier (120), une tige de raccordement (130), un composant limitant (140), un composant élastique (150), une mâchoire de serrage (160), et un bouton (170). La partie centrale du levier (120) est raccordée de façon rotative au boîtier (110), la tige de raccordement (130) sétend de façon coulissante à travers le boîtier (110), et une extrémité de la tige de raccordement (130) est raccordée de façon mobile à une extrémité du levier (120). Le composant limitant (140) est fixé sur la tige de raccordement (130), le composant élas
