Rotary evaporator having a fastening device with clamping elements
First Claim
1. A rotary evaporator comprising a rotary drive and a fastening device attached to the rotary drive and having a receiving space for receiving an evaporator flask rotatable by the rotary drive, wherein the fastening device comprises a connector section at the rotary drive side and a retainer element at the evaporator flask side that is coupled to the connector section and that is rotatable relative to the connector section between a starting position and an end position,wherein the fastening device comprises at least one clamping element that is moved, on the rotation of the retainer element relative to the connector section from the starting position into the end position, from a release position radially inwardly into a holding position in which the respective clamping element projects into the receiving space to hold a flange-shaped connection region of an evaporator flask received in the receiving space of the fastening device in a form-fitting and/or force-fitting manner and to secure it against a removal from the receiving space,the rotary evaporator further comprising means that convert a rotation of the retainer element relative to the connector section from the starting position into the end position into an axial movement of the retainer element relative to the connector section, with further means being provided that convert the axial movement of the retainer element into the radial movement and simultaneously the axial movement of the respective clamping element,wherein the further means comprise the respective clamping element being chamfered at its radially outer edge facing the connector section and the connector section having a chamfer corresponding hereto, andwherein the respective clamping element is moved, on a rotation of the retainer element relative to the connector section from the starting position into the end position, radially inwardly and simultaneously axially toward the connector section.
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Accused Products
Abstract
The invention relates to a rotary evaporator comprising a rotary drive and a fastening device attached to the rotary drive and having a receiving space for receiving an evaporator flask rotatable by the rotary drive, wherein the fastening device comprises a connector section, in particular a ring-shaped connector section, at the rotary drive side and a retainer element, in particular a ring-shaped retainer element, at the evaporator flask side that coupled to the connector section and that is rotatable relative to the connector section between a starting position and an end position. The fastening device comprises at least one clamping element that is moved, on the rotation of the retainer element relative to the connector section from the starting position into the end position, from a release position radially inwardly into a holding position in which the respective clamping element projects into the receiving space to hold a flange-shaped connection region of an evaporator flask received in the receiving space of the fastening device in a form-fitting and/or force-fitting manner and to secure it against a removal from the receiving space.
8 Citations
36 Claims
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1. A rotary evaporator comprising a rotary drive and a fastening device attached to the rotary drive and having a receiving space for receiving an evaporator flask rotatable by the rotary drive, wherein the fastening device comprises a connector section at the rotary drive side and a retainer element at the evaporator flask side that is coupled to the connector section and that is rotatable relative to the connector section between a starting position and an end position,
wherein the fastening device comprises at least one clamping element that is moved, on the rotation of the retainer element relative to the connector section from the starting position into the end position, from a release position radially inwardly into a holding position in which the respective clamping element projects into the receiving space to hold a flange-shaped connection region of an evaporator flask received in the receiving space of the fastening device in a form-fitting and/or force-fitting manner and to secure it against a removal from the receiving space, the rotary evaporator further comprising means that convert a rotation of the retainer element relative to the connector section from the starting position into the end position into an axial movement of the retainer element relative to the connector section, with further means being provided that convert the axial movement of the retainer element into the radial movement and simultaneously the axial movement of the respective clamping element, wherein the further means comprise the respective clamping element being chamfered at its radially outer edge facing the connector section and the connector section having a chamfer corresponding hereto, and wherein the respective clamping element is moved, on a rotation of the retainer element relative to the connector section from the starting position into the end position, radially inwardly and simultaneously axially toward the connector section.
Specification