Adjustable fixing device for blood sampling of rats and mice

The utility model discloses an adjustable rat and mouse blood sampling fixator which comprises a base, an adjusting rod, a supporting rod and a fixing support. The adjusting rod is connected to the base, and the adjusting rod is arranged in the vertical direction. The supporting rod is connected to the adjusting rod in a sliding mode. The fixing support is connected to the supporting rod, the fixing support is of a large-grid-shaped structure, the fixing support comprises a head fixing part, a trunk fixing part and a supporting plate which are sequentially arranged from top to bottom, the head fixing part is of a conical structure, the trunk fixing part is of a cylindrical structure, and the supporting plate is of a cylindrical structure. The supporting plate is connected to the bottom of the trunk and is in a disc shape, and the trunk fixing part is connected with a first adjusting knob so as to adjust the inner diameter of the trunk fixing part. The adjustable fixing support can be suitable for large and sm