Frame for a pushchair or buggy, comprising: a lower frame part provided with at least one rear wheel and at least one front wheel; an upper frame part which is mounted tiltably on the lower frame part on a front side of the lower frame part, the upper frame part comprising: a lower tube; an upper tube which is connected tiltably to the lower tube; a push bar which can move telescopically in the upper tube; locking means for locking the push bar in the height in the upper tube; and first blocking means (240, 241) for blocking the relative tilting of the upper tube and the lower tube; characterized in that, at least during use, the lower tube and upper tube lie in one line, and wherein the upper tube can be tilted by being moved forward in the direction of the front wheels; and in that the frame further comprises: limiting means for limiting a penetration depth of an outer end of the push bar into the upper tube to a predetermined depth limit; and an operating element for operating the limiting means; wherein the outer end of the push bar can be pushed beyond the depth limit into the upper tube after operation of the operating element for the purpose of engaging the first blocking means, and wherein the first blocking means are configured to release the relative tilting of the upper tube and the lower tube when engaging with the outer end of the push bar. a lower frame part provided with at least one rear wheel and at least one front wheel; an upper frame part which is mounted tiltably on the lower frame part on a front side of the lower frame part, the upper frame part comprising: a lower tube; an upper tube which is connected tiltably to the lower tube; a push bar which can move telescopically in the upper tube; locking means for locking the push bar in the height in the upper tube; and first blocking means (240, 241) for blocking the relative tilting of the upper tube and the lower tube; a lower tube; an upper tube which is connected tiltably to the lower tube; a push bar which can move telescopically in the upper tube; locking means for locking the push bar in the height in the upper tube; and first blocking means (240, 241) for blocking the relative tilting of the upper tube and the lower tube; characterized in that, at least during use, the lower tube and upper tube lie in one line, and wherein the upper tube can be tilted by being moved forward in the direction of the front wheels; and in that the frame further comprises: limiting means for limiting a penetration depth of an outer end of the push bar into the upper tube to a predetermined depth limit; and an operating element for operating the limiting means; limiting means for limiting a penetration depth of an outer end of the push bar into the upper tube to a predetermined depth limit; and an operating element for operating the limiting means; wherein the outer end of the push bar can be pushed beyond the depth limit into the upper tube after operation of the operating element for the purpose of engaging the first blocking means, and wherein the first blocking means are configured to release the relative tilting of the upper tube and the lower tube when engaging with the outer end of the push bar.