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The present invention relates to dining car technology field, it provides a collapsible buffet vehicle comprising a panel and a plurality of support feet, wherein the panel is detachably mounted on the plurality of support feet. A cross-bar is provided between at least a pair of opposite feet, both

The present invention relates to dining car technology field, it provides a collapsible buffet vehicle comprising a panel and a plurality of support feet, wherein the panel is detachably mounted on the plurality of support feet. A cross-bar is provided between at least a pair of opposite feet, both ends of the cross-bar being rotatably connected with the pair of opposite feet respectively, the cross-bar comprising at least two motion bars, a joint structure being provided between two neighboring motion bars to make these two motion bars foldable towards each other. The buffet vehicle of according to the present invention can be folded and unfolded by rotating the motion bars in the horizontal plane.

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1. A collapsible buffet vehicle comprising a panel and a plurality of support feet, wherein the panel is detachably mounted onto the plurality of support feet, a cross-bar is provided between at least one pair of feet opposite to each other, both ends of the cross-bar being rotatably connected with

1. A collapsible buffet vehicle comprising a panel and a plurality of support feet, wherein the panel is detachably mounted onto the plurality of support feet, a cross-bar is provided between at least one pair of feet opposite to each other, both ends of the cross-bar being rotatably connected with the pair of feet respectively, the cross-bar comprising at least two motion bars, and a joint structure being provided between two neighboring motion bars to make the two motion bars foldable towards each other; wherein the joint structure comprises a connector, a first joint head and a second joint head, each of the first and second joint heads is provided with a hinge part and a connection part, each of the connection parts of the first and second joint heads is fixedly connected with one of the motion bars, and both the hinge parts of the first and second joint heads are hinged onto the connector; andwherein an open slot is defined in the connector, and the hinge parts of the first and second joint heads are embedded into the open slot opposite to each other, the opening direction of the open slot facing the outside of the buffet vehicle, the hinge parts rotating relative to the connecter towards a center of the open slot to fold the buffet vehicle. 2. The collapsible buffet vehicle of claim 1, wherein the joint structure further comprises two pin shafts, each of a top and a bottom of the open slot has two spaced pin holes, the two pin holes on the top are aligned with the corresponding two pin holes on the bottom in vertical direction respectively, each of the first and second joint heads has a pin hole, and each of the first and second joint heads is hinged onto the connector by means of one pin shaft. 3. The collapsible buffet vehicle of claim 1, wherein the buffet vehicle further comprises a hinge structure, both ends of the cross-bar are rotatably connected with a pair of support feet by means of the hinge structure, the hinge structure comprises a hinge base, a hinge head and a pin shaft, the hinge base is fixed to the support feet, the hinge head has a connection part at one end, and a hinge part with a pin hole at the other end, the connection part is connected with the motion bar and fixed thereto, the pin shaft passes through the pin hole and arranged therein, an open slot is arranged on the hinge base, the hinge part of the hinge head is embedded in the open slot, and the hinge part of the hinge head is hinged onto the hinge base by means of the pin shaft. 4. The collapsible buffet vehicle of claim 3, wherein the buffet vehicle further comprises a baffle which is fixed onto the support feet, the baffle is disposed close to the outside of the collapsible buffet vehicle relative to the hinge base, and a retaining wall extends from a place corresponding to the open slot to restrict the rotation of the hinge part towards inside of the collapsible buffet vehicle. 5. The collapsible buffet vehicle of claim 1, wherein the buffet vehicle further comprises a movable laminate, a support bar is provided on each of opposite two pairs of support feet respectively, and the movable laminate is detachably disposed on the support bar. 6. A collapsible buffet comprising a panel and a plurality of support feet; wherein the panel is detachably mounted onto the plurality of support feet, a cross-bar is provided between at least one pair of feet opposite to each other, both ends of the cross-bar being rotatably connected with the pair of feet respectively, the cross-bar comprising at least two motion bars, and a joint structure being provided between two neighboring motion bars to make the two motion bars foldable towards each other;wherein the joint structure comprises a first hinge component, a second hinge component and a pin shaft, each of the first and second hinge components is provided with a hinge part and a connection part, both the connection parts of the first and second hinge components are fixedly connected with one of the motion bars respectively, and the hinge parts of the first and second hinge component are hinged with each other via the pin shaft; andwherein an open slot is defined in the hinge part of one of the first and second hinge components to receiving the hinge part of the other one of the first and second hinge components, the pin shaft extending the hinge parts of the first and second hinge components to rotatably connect the first and second hinge components.