Thick door three-section force small-angle buffer hinge

Abstract

The utility model discloses a thick door three-section force small-angle buffer hinge which is characterized in that a connecting arm of the thick door buffer hinge is matched with a buffer damper through a transmission arm, a swing part is rotatably arranged on the connecting arm, one end part of the swing part is hinged with the transmission arm, and the other end part of the swing part is hinged with the buffer damper; the hinge arm extends outwards to be provided with an extending end used for installing the transmission arm, namely after the hinge arm extends outwards, the cabinet door plate provided with the hinge cup can be opened and closed at a large angle, and interference between the cabinet door plate and a cabinet body side plate is avoided. Meanwhile, the buffer damper is matched with the connecting arm through the transmission arm and the swing piece, so that when the thick door buffer hinge is opened and closed at a large angle, interference between the connecting arm and the buffer damper is effectively avoided; the opening and closing radian of the hinge is ensured, so that the hinge can be better suitable for installation and use of a thick door plate; and the situation that parts in the hinge are damaged due to distortion caused by inapplicability can be avoided.

Description

Technical Field

[0001] The utility model relates to a hinge, and more particularly to a three-section force and small-angle buffer hinge for thick doors. Background Art

[0002] A hinge, also known as a hinge, is a mechanical device used to connect two solid bodies and allow relative rotation between them; hinges are mainly installed on doors and windows, while hinges are more often installed on cabinets; in order to give people a better enjoyment, hydraulic hinges (also known as damping hinges) have emerged. Their characteristic is that they provide a buffering function when the cabinet door is closed, minimizing the noise caused by the collision between the cabinet door and the cabinet body when closing; they use a damper to slow down the rotation speed of the connecting arm hinged to the hinge cup, so as to achieve the purpose of slowing down the closing speed.

[0003] However, the existing buffer hinge is only suitable for installation and use on thinner cabinet door panels. When the existing buffer hinge is used on thick door panels, the outer side of the door panel where the hinge cup is installed will interfere with the cabinet side panel where the hinge body is installed, resulting in a limited opening angle of the cabinet door. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a three-stage force and small-angle buffer hinge for thick doors.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A three-stage force and small-angle buffer hinge for thick doors, comprising a hinge body mounted on a cabinet side panel and a hinge cup mounted on the cabinet door, the hinge body comprising a hinge seat mounted with a buffer damper and a hinge arm mounted on the hinge seat, an upper connecting arm being hingedly connected above one end of the hinge arm facing the hinge cup, and a lower connecting arm being hingedly connected below, the front ends of the upper and lower connecting arms being hingedly connected to the hinge cup;

[0007] A rebound torsion spring is provided between the upper connecting arm and the lower connecting arm, and the rebound torsion spring is sleeved on the front hinge shaft of the hinge arm and the upper connecting arm, and the end of the rebound torsion spring abuts against the lower connecting arm;

[0008] A transmission arm is provided between the lower connecting arm and the buffer damper, wherein the front end of the transmission arm is hinged to the lower connecting arm, and the rear end thereof is hinged to the buffer damper via a swing member;

[0009] The swing member is rotatably mounted on the hinged arm, one end of the swing member is hinged to the transmission arm, and the other end is hinged to the buffer damper;

[0010] The hinge arm is provided with an extension end at one end facing the lower connecting arm, and a mounting groove for mounting the transmission arm is provided on the lower end surface of the extension end, and the transmission arm is slidably arranged in the mounting groove;

[0011] When the hinge cup rotates, it drives the connecting arm to move backward, and the rear end of the transmission arm drives the swing member to swing, so that the swing member presses the buffer damper backward.

[0012] The utility model is further configured as follows: guide convex plates are provided on the left and right sides of the transmission arm, and the guide convex plates abut against the corresponding side walls of the mounting slot to guide the transmission arm to move forward and backward.

[0013] The utility model is further configured that: the transmission arm is in an H-shape.

[0014] The utility model is further provided with: the connecting arm includes a connecting arm body and a mounting plate formed by bending one end of the connecting arm body to one side; the mounting plate is hinged to the hinge arm through a first rotating shaft and is hinged to the transmission arm through a second rotating shaft.

[0015] The utility model is further provided with: a lower hinge shaft is rotatably provided on the mounting plate, and the end of the rebound torsion spring abuts against the hinge shaft.

[0016] The utility model is further configured that: the mounting plate forms an angle of 90 degrees with the connecting arm body.

[0017] The beneficial effects of the utility model are as follows: the connecting arm of the thick door buffer hinge cooperates with the buffer damper through the transmission arm, the front end of the transmission arm is hinged to the lower connecting arm, and the rear end thereof is hinged to the buffer damper through a swinging piece; the swinging piece is rotatably arranged on the hinge arm, one end of which is hinged to the transmission arm, and the other end is hinged to the buffer damper; in order to extend the distance between the connecting arm and the buffer damper, the corresponding hinge arm extends outward toward one end of the lower connecting arm and is provided with an extended end for installing the transmission arm, that is, the hinge After the chain arm extends outward, the cabinet door panel on which the hinge cup is installed can be opened and closed at a large angle, avoiding interference between the cabinet door panel and the cabinet side panel; at the same time, the buffer damper cooperates with the lower connecting arm through the transmission arm and the swing member, so that when the thick door buffer hinge is opened and closed at a large angle, interference between the lower connecting arm and the buffer damper is effectively avoided; the opening and closing arc of the hinge is guaranteed, so that the hinge can be better suitable for the installation and use of thick door panels; it can also avoid the distortion and damage of the internal components of the hinge due to incompatibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a three-stage force and small-angle buffer hinge for thick doors according to the present invention;

[0019] Figure 2 This is a schematic structural diagram of a three-stage force and small angle buffer hinge for thick doors without the hinge arm;

[0020] Figure 3 It is a structure schematic view of the hinge arm of the thick door three-segment force small angle buffer hinge;

[0021] Figure 4 It is a cooperation view of the lower connecting arm and the buffer damper of the thick door three-segment force small angle buffer hinge;

[0022] Figure 5 It is a structure schematic view of the transmission arm of the thick door three-segment force small angle buffer hinge;

[0023] Figure 6 It is a structure schematic view of the lower connecting arm of the thick door three-segment force small angle buffer hinge;

[0024] The figure mark explanation: 1, hinge main body;11, hinge seat;12, hinge arm;121, extension end;1211, installation groove;122, mounting plate;1221, first rotating shaft;1222, second rotating shaft;1223, lower hinge shaft;13, upper connecting arm;14, lower connecting arm;141, connecting arm body;2, hinge cup;3, buffer damper;4, transmission arm;41, swing piece;42, guide lug;5, rebound torsional spring. Specific implementation

[0025] Refer to the attached Figures 1 to 6 The thick door three-segment force small angle buffer hinge embodiment of the utility model is further explained in detail.

[0026] A thick door three-segment force small angle buffer hinge, including the hinge main body 1 installed on the side plate of cabinet body and the hinge cup 2 installed on the cabinet door, the hinge main body 1 includes the hinge seat 11 installed with buffer damper 3 and the hinge arm 12 installed on the hinge seat 11, the upper connecting arm 13 is hinged to the upper side of the one end of the hinge arm 12 towards the hinge cup 2, and the lower connecting arm 14 is hinged to the lower side, the front end of the upper connecting arm 13 and the lower connecting arm 14 is hinged to the hinge cup 2;

[0027] The rebound torsional spring 5 is arranged between the upper connecting arm 13 and the lower connecting arm 14, the rebound torsional spring 5 is sleeved on the front hinge shaft 131 of the hinge arm 12 and the upper connecting arm 13, and the end of the rebound torsional spring 5 abuts against the lower connecting arm 14;

[0028] The transmission arm 4 is arranged between the lower connecting arm 14 and the buffer damper 3, the transmission arm 4 is H-shaped, the front end of the transmission arm 4 is hinged to the lower connecting arm 14, and the rear end is hinged to the buffer damper 3 through the swing piece 41;

[0029] The swing piece 41 is rotationally arranged on the hinge arm 12, one end is hinged to the transmission arm 4, and the other end is hinged to the buffer damper 3.

[0030] The hinge arm 12 is provided with an extension end 121 at one end of the lower connecting arm 14, and the lower end surface of the extension end 121 is provided with a mounting groove 1211 for mounting the transmission arm 4, and the transmission arm 4 is slidingly arranged in the mounting groove 1211;

[0031] When the hinge cup 2 rotates, it drives the lower connecting arm 14 to move backward, and drives the transmission arm 4 to move backward, and the rear end of the transmission arm 4 drives the swing piece 41 to swing, so that the swing piece 41 presses the buffer damper 3 backward; wherein the buffer damper 3 reacts on the swing piece 41 and the transmission arm 4, thereby preventing the rotation of the lower connecting arm 14 and playing a buffering role;

[0032] The connecting arm of the thick door buffer hinge cooperates with the buffer damper 3 through the transmission arm 4, the front end of the transmission arm 4 is hinged to the lower connecting arm 14, and the rear end is hinged to the buffer damper 3 through the swing piece 41; the swing piece 41 is rotatably arranged on the hinge arm 12, one end thereof is hinged to the transmission arm 4, and the other end is hinged to the buffer damper 3; the distance between the lower connecting arm 14 and the buffer damper 3 is extended, and the extension end 121 for mounting the transmission arm 4 is provided at one end of the hinge arm 12 extending outwardly towards the lower connecting arm 14, that is, after the hinge arm 12 extends outwardly, the cabinet door panel mounting the hinge cup 2 can be opened and closed at a large angle, avoiding interference between the cabinet door panel and the cabinet side plate; at the same time, the buffer damper 3 cooperates with the lower connecting arm 14 through the transmission arm 4 and the swing piece 41, so that when the thick door buffer hinge is opened and closed at a large angle, interference between the lower connecting arm 14 and the buffer damper 3 is effectively avoided; the opening and closing arc of the hinge is ensured, so that the hinge can be better applied to the installation and use of thick door panels; and the situation of twisting and damaging internal parts of the hinge due to inapplicability can be avoided.

[0033] In order to better guide the movement of the transmission arm 4, guide protrusions 42 are arranged on the left and right sides of the transmission arm 4, the guide protrusions 42 abut against the corresponding side walls of the mounting groove 1211, guiding the transmission arm 4 to move forward and backward, so that the hinge structure is more stable.

[0034] The lower connecting arm 14 includes a connecting arm body 141 and a mounting plate 122 bent to one side from one end of the connecting arm body 141, the mounting plate 122 is hinged to the hinge arm 12 through a first rotating shaft 1221 and hinged to the transmission arm 4 through a second rotating shaft 1222; a lower hinge shaft 1223 is rotatably arranged on the mounting plate 122, and the end of the rebound torsional spring 5 abuts against the hinge shaft; the mounting plate 122 and the connecting arm body form a 90-degree included angle, the connecting arm body and the mounting plate 122 of the lower connecting arm 14 are arranged at a 90-degree included angle, the rotating arc of the hinge cup 2 relative to the lower connecting arm 14 is expanded, so that the hinge can be further applied to the installation and use of thick doors.

[0035] The above merely describes preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary skilled persons in the art, some improvements and refinements without departing from the principles of the present application shall also be considered as falling within the protection scope of the present application.

Claims

1. A three-stage, low-angle buffer hinge for thick doors, comprising a hinge body mounted on a cabinet side panel and a hinge cup mounted on the cabinet door. The hinge body comprises a hinge base mounted with a buffer damper and a hinge arm mounted on the hinge base. The hinge arm has an upper connecting arm hingedly connected above one end facing the hinge cup and a lower connecting arm hingedly connected below. The front ends of the upper and lower connecting arms are both hingedly connected to the hinge cup. A rebound torsion spring is provided between the upper connecting arm and the lower connecting arm, and the rebound torsion spring is sleeved on the front hinge shaft of the hinge arm and the upper connecting arm, and the end of the rebound torsion spring abuts against the lower connecting arm; Its characteristics are: A transmission arm is provided between the lower connecting arm and the buffer damper, wherein the front end of the transmission arm is hinged to the lower connecting arm, and the rear end thereof is hinged to the buffer damper via a swing member; The swing member is rotatably mounted on the hinge arm, one end of the swing member is hinged to the transmission arm, and the other end is hinged to the buffer damper; The hinge arm is provided with an extension end at one end facing the lower connecting arm, and a mounting groove for mounting the transmission arm is provided on the lower end surface of the extension end, and the transmission arm is slidably arranged in the mounting groove; When the hinge cup rotates, it drives the lower connecting arm to move backward, and the rear end of the transmission arm drives the swing member to swing, so that the swing member presses the buffer damper backward.

2. The three-stage force and small angle buffer hinge for thick doors according to claim 1 is characterized by: Guide convex plates are provided on the left and right sides of the transmission arm, and the guide convex plates abut against the corresponding side walls of the installation slot to guide the transmission arm to move forward and backward.

3. The three-stage force and small angle buffer hinge for thick doors according to claim 2 is characterized by: The transmission arm is in an H-shape.

4. A three-stage force and small angle buffer hinge for thick doors according to claim 1, 2 or 3, characterized in that: The lower connecting arm includes a connecting arm body and a mounting plate formed by bending one end of the connecting arm body to one side. The mounting plate is hinged to the hinge arm through a first rotating shaft and is hinged to the transmission arm through a second rotating shaft.

5. The three-stage force and small angle buffer hinge for thick doors according to claim 4 is characterized by: A lower hinge shaft is rotatably provided on the mounting plate, and the end of the rebound torsion spring abuts against the hinge shaft.

6. The three-stage force and small angle buffer hinge for thick doors according to claim 4 is characterized by: The mounting plate forms an angle of 90 degrees with the connecting arm body.

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