Desk frame for a desk and such a desk

A desk frame for a desk, comprising two leg assemblies and a telescopic crossbar connected therebetween, an upper portion of each of the two leg assemblies being provided with a support portion configured to support a desktop, the support portions of the two leg assemblies being located in a same horizontal plane, the telescopic crossbar comprising a first crossbar and a second crossbar which are fitted one inside the other and are extendable/retractable relative to each other so that the telescopic crossbar is switchable between a retracted state and an extended state with a length greater than the retracted state, wherein a partition groove is provided on the first crossbar along an extension/retraction direction of the first crossbar, the partition groove being configured to divide the first crossbar into an upper crossbar and a lower crossbar;

• when the telescopic crossbar is in the retracted state, an upper end surface of the upper crossbar and an upper end surface of the second crossbar are lower than or flush with the support portions;
• when the telescopic crossbar is in the extended state, a fitted section of the second crossbar is lifted by the lower crossbar so that the upper end surface of the second crossbar is higher than the support portions, and a fitted section of the upper crossbar is lifted by the second crossbar so that the upper end surface of the upper crossbar is higher than the support portions, whereby the desk frame, when being connected to the desktop, presses against the desktop to provide a support.