CN-116517416-B - Cabinet with large-angle opening and closing device

CN116517416BCN 116517416 BCN116517416 BCN 116517416BCN-116517416-B

Abstract

The invention discloses a cabinet with a large-angle opening and closing device, which comprises a cabinet body, a door frame and an opening and closing device for connecting the cabinet body and the door frame, wherein the opening and closing device comprises a top-bottom hinge and a pin connected with the top-bottom hinge in a rotating way. The fixed part of pin is connected with door frame, and the fixed part periphery is equipped with a plurality of barbs that protrude in the pin, prevents that the relative position of door frame and pin from sliding. Limiting check rings are arranged between the upper hinges to limit the upper pins, so that the door frame is prevented from falling off from the upper hinges when the lower hinges are loose. When the cabinet is opened, the top-bottom hinge is fixed with the cabinet body, the door frame rotates with the central shaft of the upper pin and the lower pin as the shaft, the maximum included angle between the upper transverse frame and the top plate is larger than 180 degrees, and the maximum included angle between the lower transverse frame and the bottom plate is larger than the degree. In the opening process of the door frame, only the door frame and the pin rotate without any limitation, so that the opening angle of the door frame is increased.

Inventors

CAI MING
CAI XINGGUO
WANG QINGYAN
LEI CHANGCHENG
LV QING

Assignees

博洛尼智能科技(衡水)有限公司

Dates

Publication Date: 20260508
Application Date: 20230519

Claims (3)

1. The cabinet with the large-angle opening and closing device is characterized by comprising a cabinet body, a door frame and an opening and closing device connected with the cabinet body and the door frame; The cabinet body comprises a top plate, a left side plate, a bottom plate and a right side plate which are sequentially connected; The door frame comprises an upper transverse frame, a hinge vertical frame, a lower transverse frame and a handle vertical frame which are sequentially connected, wherein in the direction perpendicular to the plane of the door frame, the hinge vertical frame is also provided with a edging strip protruding out of the hinge vertical frame; the opening and closing device comprises a top-bottom hinge and a pin which is rotationally connected with the top-bottom hinge; The top-bottom hinge comprises a fixed base, a connecting strip and a hinged base, wherein the fixed base, the connecting strip and the hinged base are sequentially connected, the fixed base and the hinged base are arranged in parallel, and the connecting strip is used for connecting the fixed base and the hinged base; The pin comprises a fixed part, a switching part and a separation ring, wherein the fixed part and the switching part are oppositely arranged, the outer periphery of the fixed part is provided with a plurality of barbs protruding out of the pin, the fixed part is inserted into the cylindrical groove to be fixedly connected with the edge folding strip, and the switching part is inserted into the mounting groove to be rotationally connected with the hinge base so as to rotationally connect the edge folding strip with the hinge base; The top-bottom hinge comprises an upper hinge, wherein a mounting groove of the upper hinge penetrates through the hinge base, a limiting groove connected with the mounting groove is further formed in the top of the hinge base, the inner diameter of the mounting groove is smaller than that of the limiting groove, the pin comprises an upper pin, a circle of clamping groove recessed towards the inside of the pin is formed in the outer periphery of an upper pin switching part, the limiting groove and the clamping groove are provided with limiting check rings so as to limit the upper pin, the length of the clamping groove is larger than the thickness of the limiting check rings along the extending direction of the upper pin, a door plate sinking space is reserved so as to prevent the upper pin from directly rubbing with the limiting check rings, the switching part of the upper pin is inserted into the mounting groove to be connected with the upper hinge in a rotating mode, and the fixing part of the upper pin is inserted into a cylindrical groove at the top of the edge folding strip to be fixedly connected with the edge folding strip, so that the edge folding strip is connected with the upper hinge in a rotating mode; The top-bottom hinge further comprises a lower hinge, the pin also comprises a lower pin, the switching part of the lower pin is inserted into the mounting groove of the lower hinge to be rotationally connected with the lower hinge, the fixing part of the lower pin is inserted into the cylindrical groove at the bottom of the edge folding strip to be fixedly connected with the edge folding strip, so that the edge folding strip is rotationally connected with the lower hinge; The cabinet is characterized in that the upper transverse frame is attached to the top plate in a closed state, the lower transverse frame is attached to the bottom plate in an open state, the door frame rotates with the upper pin and the lower pin by taking the central shaft of the pin as an axis, the maximum included angle between the upper transverse frame and the top plate is larger than 180 degrees, and the maximum included angle between the lower transverse frame and the bottom plate is larger than 180 degrees.
2. The cabinet with the large-angle opening and closing device according to claim 1, wherein one side of the fixed base far away from the hinged base comprises a protruding portion protruding out of the fixed base, at least one through hole is formed in the protruding portion, the protruding portion is fixedly connected with the top plate and the bottom plate through the through hole through a screw, a hollowed-out area is further formed in the fixed base, and projection of the hollowed-out area along the direction of the hinged base pointing to the fixed base is at least partially overlapped with the protruding portion.
3. The cabinet with the large-angle opening and closing device according to claim 1, wherein the handle vertical frame is provided with an L-shaped handle bar protruding out of the handle vertical frame in a direction perpendicular to a plane where the door frame is located.

Description

Cabinet with large-angle opening and closing device Technical Field The invention relates to the technical field of furniture, in particular to a cabinet with a large-angle opening and closing device. Background Currently, conventional hinges for aluminum framed door fittings are limited by the opening angle, typically a maximum opening angle of 120 degrees. The prior art (CN 216240203U) discloses a vertical hinged door hinge capable of being opened at 180 degrees, but the vertical hinged door occupies indoor movable space in the door opening state no matter the vertical hinged door hinge is opened at 120 degrees or the vertical hinged door hinge at 180 degrees, the door is easy to collide with a door panel after being opened for a long time, in addition, the hidden danger of a clamping hand exists when the hinge is exposed, and the hidden danger is very dangerous for children. When the ground hinge is assembled with the heavy aluminum frame door, the large-breadth door plate is large in size and heavy, the upper hinge is only responsible for limiting the door plate, no bearing effect exists, all weight of the door plate falls on the lower hinge, if the lower hinge is loose and sinks due to the weight of the door plate, and then the pin on the door plate is separated from the upper hinge, so that the door plate falls off and hurts people easily. Therefore, it is desirable to provide a cabinet with a large-angle opening and closing device that can limit the pin connecting the hinge and the door panel. Disclosure of Invention In view of the above, the invention provides a cabinet with a large-angle opening and closing device, which comprises a cabinet body, a door frame and an opening and closing device connected with the cabinet body and the door frame; The cabinet body comprises a top plate, a left side plate, a bottom plate and a right side plate which are sequentially connected; The door frame comprises an upper transverse frame, a hinge vertical frame, a lower transverse frame and a handle vertical frame which are sequentially connected, wherein in the direction perpendicular to the plane of the door frame, the hinge vertical frame is also provided with a edging strip protruding out of the hinge vertical frame; the opening and closing device comprises a top-bottom hinge and a pin which is rotationally connected with the top-bottom hinge; The top-bottom hinge comprises a fixed base, a connecting strip and a hinged base, wherein the fixed base, the connecting strip and the hinged base are sequentially connected, the fixed base and the hinged base are arranged in parallel, and the connecting strip is used for connecting the fixed base and the hinged base; The pin comprises a fixed part, a switching part and a separation ring, wherein the fixed part and the switching part are oppositely arranged, the outer periphery of the fixed part is provided with a plurality of barbs protruding out of the pin, the fixed part is inserted into the cylindrical groove to be fixedly connected with the edge folding strip, and the switching part is inserted into the mounting groove to be rotationally connected with the hinge base so as to rotationally connect the edge folding strip with the hinge base; The top-bottom hinge comprises an upper hinge, wherein a mounting groove of the upper hinge penetrates through the hinge base, a limit groove connected with the mounting groove is further formed in the top of the hinge base, the inner diameter of the mounting groove is smaller than that of the limit groove, the pin comprises an upper pin, a circle of clamping groove recessed towards the inside of the pin is formed in the outer periphery of an upper pin switching part, and a limit retainer ring is arranged between the limit groove and the clamping groove so as to limit the upper pin; the top-bottom hinge further comprises a lower hinge, the pin also comprises a lower pin, the switching part of the lower pin is inserted into the mounting groove of the lower hinge to be rotationally connected with the lower hinge, and the fixing part of the lower pin is inserted into the cylindrical groove at the bottom of the edge folding strip to be fixedly connected with the edge folding strip, so that the edge folding strip is rotationally connected with the lower hinge; The cabinet is characterized in that the upper transverse frame is attached to the top plate in a closed state, the lower transverse frame is attached to the bottom plate in an open state, the door frame rotates with the upper pin and the lower pin by taking the central shaft of the pin as an axis, the maximum included angle between the upper transverse frame and the top plate is larger than 180 degrees, and the maximum included angle between the lower transverse frame and the bottom plate is larger than 180 degrees. Optionally, a steel ball is further arranged between the mounting groove of the lower hinge and the lower pin. Optionally, one end of the lower pin adapting part fa