CN-224228453-U - Hidden hinge capable of positioning stop door

CN224228453UCN 224228453 UCN224228453 UCN 224228453UCN-224228453-U

Abstract

The hidden hinge capable of positioning the door can be stopped, and further comprises a third shaft arm and an elastic piece, wherein the third shaft arm and the elastic piece are positioned between the first shaft arm and the first box body, one end of the first shaft arm is in pivot connection with the third shaft arm, the other end of the first shaft arm is in pivot connection with the second box body through a fixed shaft, one end of the second shaft arm is in pivot connection with the first box body, the other end of the third shaft arm, which is opposite to the first shaft arm, is in pivot connection with the first box body, the elastic piece is used for driving the sliding shaft to move in the direction of the connecting shaft, the fixed shaft is positioned between the sliding shaft and the connecting shaft, the sliding shaft axis A moves to the left side of the plane M from the right side of the plane M where the fixed shaft axis B and the connecting shaft axis C are positioned in the door opening process, the elastic piece extrudes the sliding shaft when the fixed shaft axis B is positioned on the right side of the plane M, the second shaft arm rotates in the door opening direction, and the elastic piece extrudes the sliding shaft when the axis A is positioned on the left side of the plane M.

Inventors

ZHANG FEIFEI
ZHANG JING
LAI MINGLIANG

Assignees

宁波市五角阻尼股份有限公司

Dates

Publication Date: 20260512
Application Date: 20250414

Claims (10)

1. The hidden hinge capable of positioning the door comprises a first box body, a second box body, a first shaft arm and a second shaft arm, wherein the middle parts of the first shaft arm and the second shaft arm are rotationally connected through a connecting shaft; One end of the first shaft arm is in pivot connection with the third shaft arm, the other end of the first shaft arm is in pivot connection with the second box body through a fixed shaft, one end of the second shaft arm is in pivot connection with the first box body, the other end of the second shaft arm is in sliding connection with the second box body through a sliding shaft, the other end of the third shaft arm, which is away from the first shaft arm, is in pivot connection with the first box body, the elastic piece is used for driving the sliding shaft to move away from the direction of the connecting shaft, and the fixed shaft is positioned between the sliding shaft and the connecting shaft; In the door opening process, the axis A of the sliding shaft moves from the right side of a plane M where the axis B of the fixed shaft and the axis C of the connecting shaft are located to the left side of the plane M, the axis B of the fixed shaft is pressed by the elastic piece when the axis A is located on the right side of the plane M so that the second shaft arm rotates towards the door closing direction, and when the axis A is located on the left side of the plane M, the sliding shaft is pressed by the elastic piece so that the second shaft arm rotates towards the door opening direction.
2. The hidden hinge for positioning a door according to claim 1, wherein the sliding shaft is rotatably connected with a slider, the second box body is provided with a sliding groove matched with the slider, and the sliding groove is provided with a first limiting part abutting against the slider in a door opening state.
3. The hidden hinge for positioning a door according to claim 2, wherein the sliding shaft is rotatably connected to a pull rod, the pull rod is rotatably connected to a transverse shaft, and the elastic member is located between the transverse shaft and the second case.
4. A hidden hinge for a stoppable door according to claim 3 wherein the resilient member is a compression spring.
5. The hidden hinge for positioning a door according to claim 4, wherein the second case is fixed with a hydraulic buffer device, a piston rod of the hydraulic buffer device extends toward the second shaft arm, and the second shaft arm is provided with a buffer curved surface matched with the piston rod.
6. The hidden hinge for use in a door-to-door positioning according to claim 5, wherein said second arm progressively increases pressure on said piston rod during rotation of said second arm in a door-closing direction.
7. The hidden door-positioning hinge of claim 6, wherein the hydraulic damping device is configured to slow the closing speed of the second arm.
8. The hidden hinge for positioning a door according to claim 7, wherein the second box body is fixed with a mounting frame, the mounting frame is provided with a first through hole for accommodating the hydraulic buffer device, two ends of the first through hole are connected with a front plug and a rear plug in a threaded manner, and the piston rod penetrates through the front plug.
9. The hidden hinge for positioning a door according to claim 8, wherein the mounting frame is provided with a second through hole for accommodating the compression spring, the second through hole is in threaded connection with a spring plug, the second box body and the mounting frame are fixed by a screw connection penetrating through the spring plug, and the second box body is in threaded connection with the screw.
10. The hidden hinge for positioning a door according to claim 9, wherein the number of the pull rods is one, the pair of pull rods is located at two sides of the second box body, the mounting frame is provided with an open slot for accommodating the transverse shaft, the mounting frame is sleeved with a cover body, and the first shaft arm is provided with a second limiting part which abuts against the second shaft arm when the door is opened.

Description

Hidden hinge capable of positioning stop door Technical Field The utility model relates to the field of furniture hardware, in particular to a hidden hinge capable of positioning a door in a stopping manner. Background The hinge is an assembly hardware for performing rotational connection between movable members, and generally comprises two parts rotating with each other, and the two parts are respectively mounted on two relatively movable workpieces, so that the rotational connection is realized by using the hinge, and the strength of the rotational connection and the precision in the opening and closing process are improved. Please refer to fig. 1 and 2, publication number CN 119266653A, which discloses a hinge with a line structure, specifically, 11, a first box body, 12, a second box body, 2, a rotary connection part, 21, an H-shaped shaft arm (first shaft arm), 22, a C-shaped shaft arm (second shaft arm), 23, a connection shaft, 24, and a rotation shaft. In the prior art, the hidden hinge cannot be kept in the door opening position. Disclosure of utility model The utility model aims to provide a hidden hinge capable of positioning a door. The hidden hinge comprises a first box body, a second box body, a first shaft arm, a second shaft arm, a third shaft arm and an elastic piece, wherein the first shaft arm and the middle part of the second shaft arm are connected in a rotating mode through a connecting shaft, the third shaft arm and the elastic piece are positioned between the first shaft arm and the first box body, one end of the first shaft arm is connected with the third shaft arm in a pivot mode, the other end of the first shaft arm is connected with the second box body in a pivot mode through a fixed shaft, one end of the second shaft arm is connected with the other end of the first box body in a pivot mode through a sliding shaft in a sliding mode, the other end of the third shaft arm, which faces away from the first shaft arm, is connected with the first box body in a pivot mode, the elastic piece is used for driving the sliding shaft to move away from the connecting shaft, the fixed shaft is positioned between the sliding shaft and the connecting shaft, the sliding shaft axis A moves to the left side of a plane M where the fixed shaft axis B is located in the opening process, the connecting shaft axis C is positioned, the sliding shaft axis B is positioned on the right side of the plane M, the elastic piece is pressed towards the right side of the sliding shaft axis M when the sliding shaft axis A is positioned towards the direction of the sliding shaft axis M, and the elastic piece is pressed towards the right side of the sliding shaft axis M in the direction when the sliding shaft axis A is rotated towards the direction of the sliding shaft. In one embodiment of the utility model, the sliding shaft is rotatably connected with a sliding block, the second box body is provided with a sliding groove matched with the sliding block, and the sliding groove is provided with a first limiting part which abuts against the sliding block in a door opening state. In one embodiment of the utility model, the sliding shaft is rotatably connected with a pull rod, the pull rod is rotatably connected with a transverse shaft, and the elastic piece is positioned between the transverse shaft and the second box body. In one embodiment of the utility model, the elastic member is a compression spring. In one embodiment of the utility model, the second box body is fixed with a hydraulic buffer device, a piston rod of the hydraulic buffer device extends towards the second shaft arm, and the second shaft arm is provided with a buffer curved surface matched with the piston rod. In one embodiment of the utility model, the pressure on the piston rod is gradually increased during rotation of the second arm in the door closing direction. In one embodiment of the utility model, the hydraulic damping device is used to slow the closing speed of the second arm. In one embodiment of the utility model, the second box body is fixed with a mounting frame, a first through hole for accommodating the hydraulic buffer device is formed in the mounting frame, a front plug and a rear plug are connected to two ends of the first through hole in a threaded manner, and the piston rod penetrates through the front plug. In one embodiment of the utility model, the mounting frame is provided with a second through hole for accommodating the compression spring, the second through hole is in threaded connection with a spring plug, the second box body and the mounting frame are fixedly connected through a screw penetrating through the spring plug, and the second box body is in threaded connection with the screw. In one embodiment of the utility model, the number of the pull rods is one, the pair of the pull rods is positioned at two sides of the second box body, the mounting frame is provided with an open slot for accommodating the transverse shaft, an