# US 12,006,752 B1 · Door limiting mechanism and electric appliance cabinet > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,006,752 B1 - Document ID: US12006752B1 - Status: Granted - Kind: B1 - Application number: 18/111,935 - Filed: 2023-02-21 - Granted: 2024-06-11 - Earliest claimed: 2023-02-21 - Assignees: Hangzhou Jinsong Euna Electrical Appliances Co., Ltd. - Applicants: Hangzhou Jinsong Euna Electrical Appliances Co., Ltd. - Inventors: Zheng Wu; Xianshan Liu; Jianchun Wu; Chaoyang Tang; Genji Chen - Web page: https://patentgrep.com/patent/US12006752B1 ## CPC - E05D 7/02: for use on the right-hand as well as the left-hand side; Convertible right-hand or left-hand hinges - E05D 11/1007: {with positive locking} - E05D 15/505: {by radial separation of the hinge parts at the hinge axis} - F25D 23/028: {Details} - E05Y 2201/624: Arms - E05Y 2900/30: for domestic appliances - E05Y 2900/31: for refrigerators - F25D 2323/022: Doors that can be pivoted either left-handed or right-handed - E05D: HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS (pivotal connections in general F16C11/00) - F25D: REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR (refrigerated showcases A47F3/04; thermally-insulated vessels for domestic use A47J41/00; refrigerated vehicles, see the appropriate subclasses of classes B60 - B64; containers with thermal insulation in general B65D81/38; heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants, or materials for the production of heat or cold by chemical reactions other than by combustion C09K5/00; thermally-insulated vessels for liquefied or solidified gases F17C; air-conditioning or air-humidification F24F; refrigeration machines, plants, or systems F25B; cooling of instruments or comparable apparatus without refrigeration G12B) - E05Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF ## Abstract The present application relates to a door limiting mechanism and electric appliance cabinet. The door limiting mechanism includes a connecting assembly, a locking assembly and an abutting assembly, in which the connecting assembly includes a fixed member, a locking groove is provided in the fixed member, the locking assembly includes a rotatable member and a locking member, the locking member is fixedly connected to the rotatable member for passing through the locking groove to form a locking structure, and the abutting assembly is configured to lock the locking member in the locking groove. An electric appliance includes a cabinet body and a door body, in which the door limiting mechanism is provided in the door body, there are two locking assemblies, each of the locking assemblies is connected to the cabinet body by one connecting assembly, and two locking assemblies are symmetrically arranged. ## Claims ### Claim 1 A door limiting mechanism for a door body, comprising: a connecting assembly, a locking assembly and an abutting assembly, wherein: the connecting assembly is configured to connect the door body to another structure, the connecting assembly comprises a fixed member fixedly connected to the door body, and a locking groove is defined in the fixed member, the locking assembly comprises a rotatable member and a locking member, the rotatable member is rotatably connected to the door body, and the locking member is fixedly connected to the rotatable member for passing through the locking groove to form a locking structure, the abutting assembly is configured to lock the locking member in the locking groove, and an oblong groove is defined in the rotatable member, the locking assembly further comprises a driving member rotatably connected to the door body, a driving protrusion is fixedly connected to the driving member, the driving protrusion is slidably connected in the oblong groove, wherein the driving member is driven to rotate, so that the driving protrusion is slid in the oblong groove to drive the rotatable member to rotate, thereby disengaging the locking member from the locking groove to open the door body. ### Claim 2 (depends on 1) The door limiting mechanism according to claim 1, wherein the locking assembly further comprises an elastic returning member, the elastic returning member is connected to the rotatable member, and the elastic returning member is configured to be deformed under a force when the locking member is disengaged from the locking groove. ### Claim 3 (depends on 1) The door limiting mechanism according to claim 1, wherein the abutting assembly comprises a transmission member and an abutting member, an inclined surface is provided in the transmission member, the transmission member is slidably connected to the door body in a first direction, the abutting member is configured to abut against the inclined surface, the abutting member is slidably connected to the door body in a second direction, and the transmission member is slid for driving the abutting member to slide, so that the locking member is locked in the locking groove. ### Claim 4 (depends on 3) The door limiting mechanism according to claim 3, wherein the abutting assembly further comprises a pushing member and an elastic driving member, the pushing member is fixedly connected to the transmission member and protrudes from the door body, a first end of the elastic driving member is connected to the transmission member, and a second end of the elastic driving member is connected to the door body. ### Claim 5 (depends on 3) The door limiting mechanism according to claim 3, wherein the connecting assembly further comprises a rotatable shaft, the rotatable shaft is connected to another mechanism, a disengaging groove in communication with the locking groove is defined in the fixed member, the disengaging groove comprises a rotating portion and a sliding portion, the rotatable shaft is rotatable in the rotating portion and is slidable in the sliding portion, and an end of the sliding portion is in communication with an external environment. ### Claim 6 (depends on 5) The door limiting mechanism according to claim 5, wherein the locking assembly further comprises a locking protrusion, the locking protrusion is fixedly connected to the rotatable member, and the abutting member is configured to drive the locking member to abut against the rotatable shaft. ### Claim 7 (depends on 1) An electric appliance cabinet comprising a cabinet body and a door body, wherein the door limiting mechanism according to claim 1 is provided on the door body, there are two locking assemblies, each of the locking assemblies is connected to the cabinet body by one connecting assembly, and two locking assemblies are symmetrically arranged.