Hinge and hinge opening and closing method

Abstract

The invention discloses a hinge and a hinge opening and closing method, the hinge adopts a first chain body and a second chain body which are arranged in a sliding manner, so that a first fixed seat is turned over and extends out relative to a chain seat due to the sliding speed difference between the first chain body and the second chain body in the turning process, and when the hinge is assembled on a cabinet, the first fixed seat is fixed on the chain seat; the cabinet door can avoid the cabinet body on the rear side and the adjacent cabinet door and can turn over by a larger angle.

Description

Technical Field

[0001] The invention belongs to the field of hinges, and in particular relates to a hinge and a hinge opening and closing method. Background Art

[0002] A hinge is a mechanical device used to connect two solid bodies and allow them to rotate relative to each other.

[0003] Hinges are commonly used to connect doors, windows, etc. For existing hinges, reference can be made to a parent-child hinge disclosed in Chinese Patent No. CN202323125488.4, which realizes the flip connection of the child hinge and the parent hinge by passing through a connecting piece. When used specifically, if installed on a cabinet, the child hinge and the parent hinge are fixed to the cabinet body and the cabinet door respectively, and the cabinet door can be flipped relative to the cabinet body to open or close the cabinet cavity. In addition, the cabinet is usually a multi-grid structure, that is, there are multiple cabinet doors arranged horizontally on the cabinet body, and each cabinet door flips relative to the cabinet body to open the corresponding cabinet cavity.

[0004] When the existing hinges are used, the cabinet door can usually be flipped at an angle of 90° relative to the cabinet body. Specifically, after the cabinet door is flipped outward from a state in which it is parallel to the cabinet body to close the cabinet cavity to a state in which it is perpendicular to the cabinet body to open the cabinet cavity, the outer peripheral side edges of the cabinet door are resisted by the cabinet body and / or one surface of the cabinet door is resisted by the outer peripheral side edges of an adjacent cabinet door to be positioned.

[0005] Therefore, when operating inside the cabinet cavity with the cabinet cavity open, the cabinet door in the vertical state blocks the operator at the side of the operator, which is easy to interfere with the operator's movements and greatly affects the comfort of use. Summary of the invention

[0006] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a hinge and a hinge opening and closing method, which adopts a first chain body and a second chain body that are slidingly arranged, so that the first fixed seat is flipped and extended relative to the chain seat due to the sliding speed difference between the first chain body and the second chain body during the flipping process, so that when assembled on the cabinet, the cabinet door can avoid the cabinet body and adjacent cabinet doors at the rear side and flip at a larger angle.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] As a first aspect of the present invention, a hinge is provided, which includes a chain seat, a first fixed seat, a first chain body, a second chain body and a linkage; the first chain body and the second chain body are slidably installed on the chain seat along a first direction, the front end of the first chain body is hinged on the first fixed seat to form a first pivot, a first rack is provided on the first chain body, and the first pivot is non-movably arranged relative to the first rack; one end of the linkage is hinged on the first fixed seat to form a second pivot, the other end of the linkage is hinged with the second chain body to form a third pivot, and the second chain body has a second rack; the first pivot, the second pivot and the third pivot are non-coaxial. The three pivots are arranged in a straight line and in parallel, and the three pivots are arranged perpendicular to the first direction; a gear assembly is rotatably provided on the chain seat, and the gear assembly is meshed between the first rack and the second rack, and the displacement speed ratio N of the first chain body and the second chain body along the first direction is greater than 1; the setting orientation of the second pivot relative to the first pivot, and the setting position of the third pivot relative to the first pivot are adapted to the displacement speed ratio N of the first chain body and the second chain body along the first direction, wherein the adaptation means that when the hinge is transformed between the open state and the closed state, the displacement speed difference between the first chain body and the second chain body is adapted to the rotation activity of the linkage, and the components will not be stuck in movement or damaged.

[0009] The present invention is further configured such that: the gear assembly is configured to mesh the first rack with the second rack in a same-direction displacement manner, so that the first chain body and the second chain body always move in the same-direction displacement manner.

[0010] The present invention is further configured as follows: the gear assembly includes a speed change gear set and a bridge gear, and the speed change gear set and the bridge gear are respectively rotatably arranged on the chain seat; the speed change gear set includes a first gear and a second gear, and the ratio of the radius of the first gear to the second gear is N, the first gear is meshed with the first rack, and the second gear is meshed with the second rack via the bridge gear.

[0011] The present invention is further configured such that the angle at which the first fixing seat turns from the closed state to the open state is 180°.

[0012] The present invention is further configured as follows: a mounting groove extending along a first direction is provided on one side of the chain seat, and the gear assembly is installed on a side wall of the mounting groove.

[0013] Preferably, a second slide groove is provided on the chain seat, second sliders are provided on both sides of the second chain body, the second chain body is inserted into the assembly groove, and the second slide groove and the second slider are engaged with each other.

[0014] Preferably, the chain seat is provided with first slide grooves on both sides of the assembly groove, and the first chain body is provided with first sliders on both sides, and the first slide grooves and the first sliders are engaged with each other. More preferably, the first chain body also covers the assembly groove.

[0015] The present invention is further configured as follows: a connecting groove is provided on the first fixing seat, and a first hole group and a second hole group are provided in the connecting groove.

[0016] The present invention is further configured as follows: the front end of the second chain body is bent toward the first chain body to form a curved end, and the linkage member is hinged to the curved end.

[0017] The present invention is further configured as follows: a space region is provided at the front end of the first chain body, and the space region is for the linkage member to move into, that is, the linkage member is assembled in the space region.

[0018] As a second aspect of the present invention, a hinge is provided, which includes a chain seat, a first fixed seat, a first chain body, a second chain body and a linkage member; the first chain body and the second chain body are slidably mounted on the chain seat along a first direction, the front end of the first chain body is hinged on the first fixed seat to form a first pivot, a first rack is provided on the first chain body, and the first pivot is non-movably arranged relative to the first rack; one end of the linkage member is hinged on the first fixed seat to form a second pivot, and the other end of the linkage member is hinged with the second chain body to form a third pivot; a second rack is provided on the chain seat, and a transmission gear is rotatably mounted on the second chain body, and the transmission gear is meshed between the first rack and the second rack; the first pivot, the second pivot and the third pivot are non-colinear and parallel, and the three pivots are all arranged perpendicular to the first direction; the setting orientation of the second pivot relative to the first pivot, and the setting position of the third pivot relative to the first pivot are adapted to the displacement speed ratio N of the first chain body and the second chain body along the first direction, that is, they are not stuck and will not cause damage to parts.

[0019] The present invention is further configured such that: when the hinge is in a closed state, the second pivot and the third pivot are respectively arranged on both sides of the first pivot.

[0020] Preferably, the plane where the second pivot and the third pivot are located is perpendicular to the first direction.

[0021] Preferably, the straight-line distance between the second pivot and the first pivot is smaller than the straight-line distance between the third pivot and the first pivot.

[0022] The present invention is further configured as follows: a mounting groove extending along a first direction is provided on one side of the chain seat.

[0023] Preferably, a second slide groove is provided on the chain seat, second sliders are provided on both sides of the second chain body, the second chain body is inserted into the assembly groove, and the second slide groove is engaged with the second slider;

[0024] Preferably, the chain seat is provided with first slide grooves on both sides of the assembly groove, and the first chain body is provided with first sliders on both sides, and the first slide grooves and the first sliders are engaged with each other. More preferably, the first chain body covers the assembly groove.

[0025] The present invention is further configured such that: the transmission gear is rotatably arranged at the end of the second chain body.

[0026] The present invention is further configured as follows: the linkage member is a bending member, the linkage member includes a first arm, a second arm and a third arm, the two ends of the second arm are respectively connected to the first arm and the third arm, the first arm is hinged to the first fixed seat, and the third arm is hinged to the second chain body.

[0027] The present invention is further configured as follows: a space area is provided at the front end of the first chain body, and the space area is for the linkage member to move into.

[0028] The present invention is further configured such that the angle of the first fixing seat when the hinge turns from a closed state to an open state is 115°-175°.

[0029] As a third aspect of the present invention, a hinge opening and closing method is provided, which comprises: providing a hinge, wherein the link comprises a chain seat, a first fixed seat, a first chain body, a second chain body and a linkage member, wherein the first fixed seat is used to be fastened to a cabinet door, and the chain seat is used to be fastened to a cabinet body, and the first chain body, the second chain body and the linkage member constitute a hinge body and are connected between the first fixed seat and the chain seat; when opening, the cabinet door rotates around the first pivot with the first fixed seat, so that the second pivot rotates around the first pivot to drive the second chain body to move forward, and the first chain body is driven to move forward at a displacement speed ratio N by engaging between the first rack of the first chain body and the second rack of the second chain body through the rotation of a gear assembly arranged on the chain seat; when closing, the cabinet door rotates in the opposite direction around the first pivot with the first fixed seat, so that the third pivot rotates around the first pivot to drive the second chain body to move backward, and the first chain body is driven to move backward at a displacement speed ratio N through the gear assembly.

[0030] Preferably, the rotation angle of the first fixed seat is 180° when the hinge changes from a closed state to an open state. In addition, the cabinet door is arranged in close contact with the cabinet body when in the open state. The close contact means that the cabinet door connected by the hinge in the open state is parallel to the other cabinet door next to it and the gap is very small.

[0031] As a fourth aspect of the present invention, a hinge opening and closing method is provided, which comprises: providing a hinge, wherein the link comprises a chain seat, a first fixed seat, a first chain body, a second chain body and a linkage member, wherein the first fixed seat is used to be fastened to a cabinet door, and the chain seat is used to be fastened to a cabinet body, and the first chain body, the second chain body and the linkage member constitute a hinge body and are connected between the first fixed seat and the chain seat; when opening, the cabinet door rotates around the first pivot with the first fixed seat, so that the second pivot rotates around the first pivot to drive the second chain body to move forward, and the first chain body is driven to move forward at a displacement speed ratio N through the engagement between the first rack of the first chain body and the second rack of the chain seat by rotating the transmission gear arranged on the second chain body; when closing, the cabinet door rotates in the opposite direction around the first pivot with the first fixed seat, so that the third pivot rotates around the first pivot to drive the second chain body to move backward, and the first chain body is driven to move backward at a displacement speed ratio N through the engagement of the transmission gear.

[0032] The present invention is further configured such that: when the hinge is changed from a closed state to an open state, the rotation angle of the first fixing seat is 115°-175°.

[0033] The hinge of the present invention is structurally designed so that the relative movement between the first chain body and the second chain body is configured as a straight reciprocating displacement along a first direction parallel to the cabinet side wall, thereby reducing the range of the activity space of the sub-hinge, and through the settings on the internal structure of the hinge, the displacement speed ratio of the two chain bodies is adapted to the rotational movement of the linkage, and the structure will not get stuck or parts will be damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 This is an assembly diagram of the first embodiment of the present invention in a closed state;

[0036] Figure 2 It is a cross-sectional view of the first embodiment of the present invention in a closed state;

[0037] Figure 3 This is an assembly diagram of the first embodiment of the present invention in an open state;

[0038] Figure 4 It is a cross-sectional view of the first embodiment of the present invention in an open state;

[0039] Figure 5 It is an exploded view of the first embodiment of the present invention;

[0040] Figure 6 An exploded view of a part of the structure in the first embodiment of the present invention;

[0041] Figure 7 This is a usage state diagram of the first embodiment of the present invention;

[0042] Figure 8 This is a usage state diagram of the first embodiment of the present invention;

[0043] Fig. 9 This is an assembly diagram of the second embodiment of the present invention in a closed state;

[0044] Fig.10 It is a cross-sectional view of the second embodiment of the present invention in a closed state;

[0045] Fig.11 This is an assembly diagram of the second embodiment of the present invention in an open state;

[0046] Fig.12 It is a cross-sectional view of the second embodiment of the present invention in an open state;

[0047] Fig.13 It is an exploded diagram of the second embodiment of the present invention;

[0048] Fig.14 This is a usage state diagram of the second embodiment of the present invention;

[0049] Fig.15 This is a usage status diagram of the second embodiment of the present invention.

[0050] Description of reference numerals:

[0051] 1. Chain seat;

[0052] 11. Assembly groove; 12. First slide groove; 13. Second slide groove;

[0053] 2. The first fixed seat;

[0054] 21. connecting groove; 22. first hole group; 23. second hole group;

[0055] 3. The first chain;

[0056] 31. first slider; 32. space area;

[0057] 4. The second chain;

[0058] 41. Second slider;

[0059] 5. Linkage parts;

[0060] 51, first arm; 52, second arm; 53, third arm;

[0061] 61, first pivot; 62, second pivot; 63, third pivot;

[0062] 71. first rack; 72. second rack; 73. gear assembly; 74. transmission gear;

[0063] 731, first gear; 732, second gear; 733, bridge gear;

[0064] 91. Cabinet body; 92. Cabinet door. DETAILED DESCRIPTION

[0065] In order to enable those skilled in the art to better understand the present invention, and thus to more clearly define the scope of the present invention, the present invention is described in detail with respect to some specific embodiments of the present invention. It should be noted that the following are only some specific implementation methods of the present invention, which are only part of the embodiments of the present invention, wherein the specific and direct description of the relevant structure is only for the convenience of understanding the present invention, and each specific feature does not naturally and directly limit the scope of implementation of the present invention. The conventional selection and replacement made by those skilled in the art under the guidance of the present invention should be regarded as within the scope of the present invention.

[0066] Embodiment 1:

[0067] like Figure 1-Figure 6 As shown, the present invention discloses a hinge for hingedly connecting two structures that need to be hinged. The two structures can be a cabinet body 91 and a cabinet door 92, or other structures adapted to the hinge. The following is explained using the cabinet body 91 and the cabinet door 92.

[0068] Specifically, the hinge includes a chain seat 1, a first fixed seat 2, a first chain body 3, a second chain body 4 and a linkage member 5;

[0069] The first fixed seat 2 is located at the front side of the chain seat 1, the first chain body 3 and the second chain body 4 are movably installed on the chain seat 1 in the front-to-back direction, and extend forward from the chain seat 1. In addition, the front end of the first chain body 3 is hinged to the first fixed seat 2 by means of an insertion rod to form a first pivot 61, one end of the linkage member 5 is hinged to the front end of the second chain body 4 by means of an insertion rod to form a third pivot 63, and the other end of the linkage member 5 is hinged to the first fixed seat 2 to form a second pivot 62; wherein the first pivot 61, the second pivot 62 and the third pivot 63 are non-colinearly arranged in parallel, and are all oriented in the vertical direction;

[0070] In addition, a first rack 71 is provided on the first chain body 3, and the first pivot 61 is non-movably arranged relative to the first rack 71. In this embodiment, the first pivot 61 and the first rack 71 are both fixed to the first chain body 3, and correspondingly, the second chain body 4 is fixed with a second rack 72. In addition, a gear assembly 73 is provided on the chain seat 1, and the gear assembly 73 is engaged with the first rack 71 and the second rack 72, and the displacement speed ratio N of the first chain body 3 and the second chain body 4 along the front-to-back direction is greater than 1, that is, the first chain body 3 and the second chain body 4 move differentially while moving synchronously; thereby, during the flipping process of the first fixed seat 2, the setting orientation of the second pivot 62 relative to the first pivot 61, and the setting position of the third pivot 63 relative to the first pivot 61 are adapted to the displacement speed ratio N of the first chain body 3 and the second chain body 4 along the front-to-back direction.

[0071] Among them, the adaptation is that when the first fixed seat 2 rotates with the opening of the pivot door, the linkage member 5 will rotate around the first pivot 61 as the rotation center and around the straight-line distance between the first pivot 61 and the second pivot 62 as the radius, so that the third pivot 63 rotates accordingly, and the movement of the third pivot 63 is synchronized with the sliding speed ratio N between the first chain body 3 and the second chain body 4 (if synchronized, the parts will conflict with each other and get stuck / locked, or be relatively stretched and damage the parts. They will only move synchronously when their movement speeds / programs are almost equal).

[0072] When in use, the hinge is fixed to the inner wall of the cabinet 91, the first fixing seat 2 is fixed to a surface of the cabinet door 92, the first chain body 3, the second chain body 4 and the linkage 5 constitute the hinge body and are connected between the first fixing seat 2 and the chain seat 1.

[0073] Therefore, 1. when the cabinet door 92 is opened, the cabinet door 92 rotates with the first fixed seat 2 around the first pivot 61, so that the second pivot 62 rotates around the first pivot 61 to drive the second chain body 4 to move forward, and the first chain body 3 is driven to move forward according to the displacement speed ratio N by rotating the gear assembly 73 arranged on the chain seat 1. The first rack 71 of the first chain body 3 and the second rack 72 of the second chain body 4 engage with each other, so that the cabinet door 92 will move away from the cabinet body 91, so that when the cabinet door 92 is turned over to 90 degrees, a distance is formed between the outer periphery of the cabinet door 92 and the cabinet body 91, so that the cabinet body 91 will not prevent the cabinet door 92 from continuing to turn over. Similarly, the cabinet When the door 92 is flipped to 90°, the distance between the cabinet door 92 and the cabinet body 91 is greater than the thickness of the adjacent cabinet door 92, and the limit of the adjacent cabinet door 92 can also be released, so that the cabinet door 92 can continue to flip and open at a larger angle, so that when the operator operates in the cabinet cavity, the cabinet door 92 is not easy to interfere with the operator's actions, making the operation more comfortable; 2. When closing the cabinet door 92, the cabinet door 92 rotates in the opposite direction around the first pivot 61 with the first fixed seat 2, so that the second pivot 62 rotates around the first pivot 61 to drive the second chain body 4 to move backward, and drives the first chain body 3 to move backward according to the displacement speed ratio N via the gear assembly 73.

[0074] Among them, the gear assembly 73 is configured to displace the first rack 71 and the second rack 72 in the same direction and engage them. Specifically, the gear assembly 73 includes a speed change gear set and a bridge gear 733, and the speed change gear set and the bridge gear 733 are respectively rotatably arranged on the chain seat 1; wherein the speed change gear set includes a first gear 731 and a second gear 732, and the ratio of the radius of the first gear 731 to the second gear 732 is N, the first gear 731 and the second gear 732 are connected by integral molding or coaxial fixing so that the first gear 731 and the second gear 722 rotate synchronously, the first gear 731 is meshed with the first rack 71, and the second gear 732 is meshed with the second rack 72 via the bridge gear 733.

[0075] Preferably, in this embodiment, the angle at which the first fixing seat 2 turns from the closed state to the open state is 180°, so that the cabinet door 92 is flipped and parallel to the adjacent cabinet door 92 to improve the operator's comfort in operating in the cabinet cavity.

[0076] Among them, the left and right sides of the chain seat 1 are provided with an assembly groove 11 extending in the front-to-back direction, and the gear assembly 73 is connected to the side wall of the assembly groove 11 by means of a vertically extending plug rod; the upper and lower side walls of the assembly groove 11 are recessed with a trapezoidal second slide groove 13, and the upper and lower sides of the second chain body 4 are provided with a matching second slider 41, so that the second chain body 4 can be inserted into the assembly groove 11 and fit through the second slide groove 13 and the second slider 41; it should be noted that the second chain body 4 is located on the side of the gear assembly 73 close to the bottom wall of the assembly groove 11. In addition, the chain seat 1 is provided with a first slide groove 12 on the upper and lower sides of the assembly groove 11, and the upper and lower sides of the first chain body 3 are provided with a matching first slider 31, the first slide groove 12 and the first slider 31 are fit, and the first chain body 3 covers the assembly groove 11.

[0077] Among them, the linkage part 5 is a bending part, and the linkage part 5 includes a first arm 51, a second arm 52 and a third arm 53. The two ends of the second arm 52 are respectively connected to the first arm 51 and the third arm 53. The first arm 51 is hinged on the first fixed seat 2, and the third arm 53 is hinged on the second chain body 4, so that the third arm 53 can be flipped to the side of the cabinet door 92 after the cabinet door 92 is flipped more than 90° through the bent linkage part 5, making the structure more compact.

[0078] In addition, the first fixed seat 2 is provided with a connecting groove 21 that runs through the front and back, and a first hole group 22 and a second hole group 23 arranged in the connecting groove 21, wherein the first hole group 22 provides a mounting position for the first chain body 3, so that the insertion rod is respectively inserted into the first hole group 22 and the first chain body 3 to form a first pivot 61. Similarly, the second hole group 23 provides a mounting position for the linkage member 5, so that the insertion rod is respectively inserted into the second hole group 23 and the linkage member 5 to form a second pivot 62, so that the first chain body 3 and the linkage member 5 can be built into the connecting groove 21 when flipped to the closed position, and leave the connecting groove 21 when flipped to the open position.

[0079] The front end of the second chain body 4 is bent toward the first chain body 3 to form a curved end, and the linkage member 5 is hinged to the curved end.

[0080] Preferably, a space area 32 is provided at the front end of the first chain body 3 , and the space area 32 is for the linkage member 5 to move into.

[0081] In this embodiment, the front-to-back direction is defined as the first direction, and the first direction may also be a direction with an appropriate front-to-back deviation.

[0082] Preferably, in the present embodiment, during the opening process, the first fixing member first extends out and then retracts relative to the chain seat 1, wherein the extension to the longest position is the critical position, so that the first fixing member is first extended as much as possible before the closing position to ensure a distance from the adjacent cabinet door 92 to prevent interference, and then retracts close to the adjacent cabinet door 92 to make the structure more compact.

[0083] The present embodiment also provides a hinge opening and closing method, which adopts the above-mentioned hinge, wherein the first fixed seat 2 is used to be fastened to the cabinet door 92, the chain seat 1 is used to be fastened to the cabinet body 91, the first chain body 3, the second chain body 4 and the linkage member 5 constitute the hinge body and are connected between the first fixed seat 2 and the chain seat 1; when opening, the cabinet door 92 rotates around the first pivot 61 with the first fixed seat 2, so that the third pivot 63 rotates around the first pivot 61 to drive the second chain body 4 to move forward, and the first chain body 3 is driven to move forward at a displacement speed ratio N by engaging between the first rack 71 of the first chain body 3 and the second rack 72 of the second chain body 4 through the rotation of the gear assembly 73 arranged on the chain seat 1; when closing, the cabinet door 92 rotates in the opposite direction around the first pivot 61 with the first fixed seat 2, so that the third pivot 63 rotates around the first pivot 61 to drive the second chain body 4 to move backward, and the first chain body 3 is driven to move backward at a displacement speed ratio N through the gear assembly 73.

[0084] Preferably, the rotation angle from the closed state to the open state is 180°, and the cabinet door 92 is arranged in close contact with the cabinet body 91 in the open state.

[0085] In addition, the hinge passes through a critical state during the flipping process, and the critical state is that the first pivot 61, the second pivot 62, and the third pivot 63 are arranged in the same plane. At this time, the third pivot 63 and the first pivot 61 reach the maximum distance position, so that no matter in which direction the second pivot 62 rotates, the distance between the first pivot 61 and the third pivot 63 will be reduced, so that this position is the maximum position where the cabinet door 92 can be extended, so that when the flipping process passes through this critical position, the cabinet door first extends and then retracts.

[0086] Embodiment 2:

[0087] like Figure 1-Figure 6 As shown, the present invention discloses a hinge for hingedly connecting two structures that need to be hinged. The two structures can be a cabinet body 91 and a cabinet door 92, or other structures adapted to the hinge. The following is explained using the cabinet body 91 and the cabinet door 92.

[0088] Specifically, the hinge includes a chain seat 1, a first fixed seat 2, a first chain body 3, a second chain body 4 and a linkage member 5;

[0089] The first fixed seat 2 is located at the front side of the chain seat 1, the first chain body 3 and the second chain body 4 are movably installed on the chain seat 1 in the front-to-back direction, and extend forward from the chain seat 1. In addition, the front end of the first chain body 3 is hinged to the first fixed seat 2 by means of an insertion rod to form a first pivot 61, one end of the linkage member 5 is hinged to the front end of the second chain body 4 by means of an insertion rod to form a third pivot 63, and the other end of the linkage member 5 is hinged to the first fixed seat 2 to form a second pivot 62; wherein the first pivot 61, the second pivot 62 and the third pivot 63 are non-colinearly arranged in parallel, and are all oriented in the vertical direction;

[0090] In addition, a first rack 71 is provided on the first chain body 3, and the first pivot 61 is non-movably arranged relative to the first rack 71. In this embodiment, the first pivot 61 and the first rack 71 are both fixed to the first chain body 3. Correspondingly, a second rack 72 is fixed on the chain seat 1. In addition, a transmission gear 74 is provided on the second chain body 4. The transmission gear 74 is located between the first rack 71 and the second rack 72, and is respectively engaged with the first rack 71 and the second rack 72, so that the first chain body 3 and the second chain body 4 can form a differential motion with a displacement speed ratio of N while moving synchronously; thereby, during the flipping process of the first fixed seat 2, the setting position of the second pivot 62 relative to the first pivot 61 and the setting position of the third pivot 63 relative to the first pivot 61 are adapted to the displacement speed ratio N of the first chain body 3 and the second chain body 4 along the front-to-back direction. In this embodiment, N is 2.

[0091] When in use, the hinge is fixed to the inner wall of the cabinet 91, the first fixing seat 2 is fixed to a surface of the cabinet door 92, the first chain body 3, the second chain body 4 and the linkage 5 constitute the hinge body and are connected between the first fixing seat 2 and the chain seat 1.

[0092] Therefore, 1. when the cabinet door 92 is opened, the cabinet door 92 rotates with the first fixed seat 2 around the first pivot 61, so that the second pivot 62 rotates around the first pivot 61 to drive the second chain body 4 to move forward, and the first chain body 3 is driven to move forward according to the displacement speed ratio N by rotating the transmission gear 74 provided on the second chain body 4. The first rack 71 of the first chain body 3 and the second rack 72 of the chain seat 1 are engaged, so that the cabinet door 92 will move away from the cabinet body 91, so that when the cabinet door 92 is turned over to 90 degrees, a distance is formed between the outer periphery of the cabinet door 92 and the cabinet body 91, so that the cabinet body 91 will not prevent the cabinet door 92 from continuing to turn over. Similarly, the cabinet When the door 92 is flipped to 90°, the distance between the cabinet door 92 and the cabinet body 91 is greater than the thickness of the adjacent cabinet door 92, and the limit of the adjacent cabinet door 92 can also be released, so that the cabinet door 92 can continue to flip and open at a larger angle, so that when the operator operates in the cabinet cavity, the cabinet door 92 is not easy to interfere with the operator's actions, making the operation more comfortable; 2. When closing the cabinet door 92, the cabinet door 92 rotates in the opposite direction around the first pivot 61 with the first fixed seat 2, so that the second pivot 62 rotates around the first pivot 61 to drive the second chain body 4 to move backward, and drives the first chain body 3 to move backward according to the displacement speed ratio N via the transmission gear 74.

[0093] Among them, in the closed state of this embodiment, the plane where the second pivot 62 and the third pivot 63 are located is perpendicular to the front-to-back direction, and the second pivot 62, the first pivot 61 and the third pivot 63 are arranged in sequence along the left-right direction, so that the second pivot 62 and the third pivot 63 are on both sides of the first pivot 61. In addition, the straight-line distance between the second pivot 62 and the first pivot 61 is smaller than the straight-line distance between the third pivot 63 and the first pivot 61. This state makes the distance between the second pivot 62 and the third pivot 63 to the straight-line track reaches the maximum, that is, the limit position, so that the subsequent flip can be flipped at the maximum angle.

[0094] In addition, in other embodiments, in the closed state, the first pivot 61, the second pivot 62 and the third pivot 63 are arranged in sequence along the left and right directions to achieve that the second pivot 62 and the third pivot 63 are on the same side of the first pivot 61, and relative to the above structure, the flipping angle thereof is relatively small.

[0095] Preferably, the angle of the first fixing seat 2 in this embodiment when the hinge turns from the closed state to the open state is 115°-175°, and the optimal angle is 135°, so that the cabinet door 92 can be opened to a greater extent to improve the operator's comfort in operating in the cabinet cavity.

[0096] Among them, the left and right sides of the chain seat 1 are provided with a mounting groove 11 extending in the front-to-back direction, and the upper and lower opposite side walls of the mounting groove 11 are recessed with a trapezoidal second slide groove 13, and the upper and lower opposite sides of the second chain body 4 are provided with a matching second slider 41, so that the second chain body 4 is inserted into the mounting groove 11 and is engaged through the second slide groove 13 and the second slider 41; it should be noted that the second rack 72 is arranged on the bottom wall of the mounting groove 11. In addition, the chain seat 1 is provided with a first slide groove 12 on the upper and lower opposite sides of the mounting groove 11, and the upper and lower opposite sides of the first chain body 3 are provided with a matching first slider 31, the first slide groove 12 and the first slider 31 are engaged, and the first chain body 3 covers the mounting groove 11.

[0097] The transmission gear 74 is disposed at the rear end of the second chain body 4 , and the axial direction of the transmission gear 74 is disposed vertically, and the two sides of the transmission gear 74 can respectively mesh with the first rack 71 and the second rack 72 .

[0098] Among them, the linkage part 5 is a bending part, and the linkage part 5 includes a first arm 51, a second arm 52 and a third arm 53. The two ends of the second arm 52 are respectively connected to the first arm 51 and the third arm 53. The first arm 51 is hinged on the first fixed seat 2, and the third arm 53 is hinged on the second chain body 4, so that the third arm 53 can be flipped to the side of the cabinet door 92 after the cabinet door 92 is flipped more than 90° through the bent linkage part 5, making the structure more compact.

[0099] In addition, the first fixed seat 2 is provided with a connecting groove 21 that runs through the front and back, and a first hole group 22 and a second hole group 23 arranged in the connecting groove 21, wherein the first hole group 22 provides a mounting position for the first chain body 3, so that the insertion rod is respectively inserted into the first hole group 22 and the first chain body 3 to form a first pivot 61. Similarly, the second hole group 23 provides a mounting position for the linkage member 5, so that the insertion rod is respectively inserted into the second hole group 23 and the linkage member 5 to form a second pivot 62, so that the first chain body 3 and the linkage member 5 can be built into the connecting groove 21 when flipped to the closed position, and leave the connecting groove 21 when flipped to the open position.

[0100] Preferably, a space area 32 is provided at the front end of the first chain body 3 , and the space area 32 is for the linkage member 5 to move into.

[0101] In this embodiment, the front-to-back direction is defined as the first direction, and the first direction may also be a direction with an appropriate front-to-back deviation.

[0102] Preferably, in the present embodiment, during the opening process, the first fixing member first extends out and then retracts relative to the chain seat 1, wherein the extension to the longest position is the critical position, so that the first fixing member is first extended as much as possible before the closing position to ensure a distance from the adjacent cabinet door 92 to prevent interference, and then retracts close to the adjacent cabinet door 92 to make the structure more compact.

[0103] The present embodiment also provides a hinge opening and closing method, using the above-mentioned hinge, the first fixed seat 2 is used to be fastened to the cabinet door 92, the chain seat 1 is used to be fastened to the cabinet body 91, the first chain body 3, the second chain body 4 and the linkage 5 constitute the hinge body and are connected between the first fixed seat 2 and the chain seat 1; when opening, the cabinet door 92 rotates around the first pivot 61 with the first fixed seat 2, so that the second pivot 62 rotates around the first pivot 61 to drive the second chain body 4 to move forward, and the first chain body 3 is driven to move forward at a displacement speed ratio N through the engagement between the first rack 71 of the first chain body 3 and the second rack 72 of the chain seat 1 by rotating the transmission gear 74 provided on the second chain body 4; when closing, the cabinet door 92 rotates in the opposite direction around the first pivot 61 with the first fixed seat 2, so that the second pivot 62 rotates around the first pivot 61 to drive the second chain body 4 to move backward, and the first chain body 3 is driven to move backward at a displacement speed ratio N through the engagement of the transmission gear 74.

[0104] In addition, the hinge passes through a critical state during the flipping process, and the critical state is that the first pivot 61, the second pivot 62, and the third pivot 63 are arranged in the same plane. At this time, the third pivot 63 and the first pivot 61 reach the maximum distance position, so that no matter in which direction the second pivot 62 rotates, the distance between the first pivot 61 and the third pivot 63 will be reduced, so that this position is the maximum position where the cabinet door 92 can be extended, so that when the flipping process passes through this critical position, the cabinet door first extends and then retracts.

[0105] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hinge, characterized in that: It comprises a chain seat (1), a first fixed seat (2), a first chain body (3), a second chain body (4) and a linkage member (5); The first chain body (3) and the second chain body (4) are movably mounted on the chain seat (1) in a sliding manner along a first direction; the front end of the first chain body (3) is hinged on the first fixed seat (2) to form a first pivot (61); a first rack (71) is provided on the first chain body (3), and the first pivot (61) is inactively arranged relative to the first rack (71); One end of the linkage member (5) is hinged on the first fixed seat (2) to form a second pivot (62), and the other end of the linkage member (5) is hinged on the second chain body (4) to form a third pivot (63), and the second chain body (4) is provided with a second rack (72); The first pivot (61), the second pivot (62) and the third pivot (63) are non-collinear and arranged in parallel, and are all arranged perpendicular to the first direction; A gear assembly (73) is rotatably provided on the chain seat (1), the gear assembly (73) is meshed between the first rack (71) and the second rack (72), and a displacement speed ratio N of the first chain body (3) and the second chain body (4) along the first direction is greater than 1; The setting orientation of the second pivot (62) relative to the first pivot (61), and the setting position of the third pivot (63) relative to the first pivot (61) are adapted to the displacement speed ratio N of the first chain body (3) and the second chain body (4) along the first direction.

2. The hinge according to claim 1, characterized in that: The gear assembly (73) is configured to mesh the first rack (71) and the second rack (72) in a co-directional manner; and / or, The gear assembly (73) comprises a speed change gear set and a bridge gear (733), and the speed change gear set and the bridge gear (733) are rotatably arranged on the chain seat (1) respectively; the speed change gear set comprises a first gear (731) and a second gear (732), and the ratio of the radius of the first gear (731) to the second gear (732) is N, the first gear (731) is meshed with the first rack (71), and the second gear (732) is meshed with the second rack (72) via the bridge gear (733).

3. The hinge according to claim 1, characterized in that: The angle at which the first fixing seat (2) turns from the closed state to the open state is 180°; and / or, A mounting groove (11) extending in a first direction is provided on one side of the chain seat (1), and the gear assembly (73) is installed on the side wall of the mounting groove (11); a first sliding groove (12) is provided on the two side walls of the mounting groove (11), and first sliding blocks (31) are provided on both sides of the first chain body (3), and the first sliding groove (12) and the first sliding block (31) are snap-fitted; a second sliding groove (13) is provided on the bottom wall of the mounting groove (11), and a second sliding block (41) is provided on the second chain body (4), and the second chain body (4) is inserted into the mounting groove (11).

4. The hinge according to claim 1, characterized in that: The first fixing seat (2) is provided with a connecting groove (21), and the connecting groove (21) is provided with a first hole group (22) and a second hole group (23); and / or, The front end of the second chain body (4) is bent toward the first chain body (3) to form a curved end, and the linkage member (5) is hinged to the curved end; and / or, A space area (32) is provided at the front end of the first chain body (3), and the linkage member (5) is assembled in the space area (32).

5. A hinge, characterized in that: It comprises a chain seat (1), a first fixed seat (2), a first chain body (3), a second chain body (4) and a linkage member (5); The first chain body (3) and the second chain body (4) are mounted on the chain seat (1) in a sliding manner along a first direction. The front end of the first chain body (3) is hinged on the first fixing seat (2) to form a first pivot (61), a first rack (71) is provided on the first chain body (3), and the first pivot (61) is inactively arranged relative to the first rack (71); One end of the linkage member (5) is hinged on the first fixing seat (2) to form a second pivot (62), and the other end of the linkage member (5) is hinged on the second chain body (4) to form a third pivot (63); The chain seat (1) is provided with a second rack (72), and the second chain body (4) is rotatably mounted with a transmission gear (74), and the transmission gear (74) is meshed between the first rack (71) and the second rack (72); The first pivot (61), the second pivot (62) and the third pivot (63) are non-collinear and arranged in parallel, and are all arranged perpendicular to the first direction; The setting orientation of the second pivot (62) relative to the first pivot (61), and the setting position of the third pivot (63) relative to the first pivot (61) are adapted to the displacement speed ratio N of the first chain body (3) and the second chain body (4) along the first direction.

6. The hinge according to claim 5, characterized in that: When the hinge is in a closed state, the second pivot (62) and the third pivot (63) are respectively arranged on both sides of the first pivot (61); and / or, The straight-line distance between the second pivot (62) and the first pivot (61) is smaller than the straight-line distance between the third pivot (63) and the first pivot (61).

7. The hinge according to claim 5, characterized in that: One side of the chain seat (1) is provided with an assembly groove (11) extending in a first direction; two side walls of the assembly groove (11) are provided with first slide grooves (12); two sides of the first chain body (3) are provided with first sliders (31); the first slide groove (12) and the first slider (31) are snap-fitted; a second slider (41) of the second chain body (4) is inserted into the second slide groove (13) of the assembly groove (11) and snap-fitted; and / or, The transmission gear (74) is rotatably disposed at the end of the second chain body (4); and / or, The linkage member (5) is a bent member, and comprises a first arm (51), a second arm (52) and a third arm (53), the two ends of the second arm (52) are respectively connected to the first arm (51) and the third arm (53), the first arm (51) is hinged to the first fixing seat (2), and the third arm (53) is hinged to the second chain body (4); and / or, The front end of the first chain body (3) is provided with a space area (32), and the linkage member (5) is assembled in the space area (32); and / or, The angle at which the first fixing seat (2) turns from the closed state of the hinge to the open state is 115°-175°.

8. A hinge opening and closing method, characterized in that: include: A hinge is provided, wherein the link comprises a chain seat (1), a first fixed seat (2), a first chain body (3), a second chain body (4) and a linkage member (5), wherein the first fixed seat (2) is used to be fastened to a cabinet door (92), the chain seat (1) is used to be fastened to a cabinet body (91), and the first chain body (3), the second chain body (4) and the linkage member (5) constitute a hinge body and are connected between the first fixed seat (2) and the chain seat (1); When opened, the cabinet door (92) rotates with the first fixed seat (2) around the first pivot (61), so that the second pivot (62) rotates around the first pivot (61) to drive the second chain body (4) to move forward, and the first chain body (3) is driven to move forward according to the displacement speed ratio N by rotating the gear assembly (73) arranged on the chain seat (1) to mesh between the first rack (71) of the first chain body (3) and the second rack (72) of the second chain body (4); When closed, the cabinet door (92) rotates in the opposite direction along with the first fixed seat (2) around the first pivot (61), so that the second pivot (62) rotates around the first pivot (61) to drive the second chain body (4) to move backward, and the first chain body (3) is driven to move backward at a displacement speed ratio N via the gear assembly (73); Preferably, the rotation angle of the first fixing seat (2) from the closed state to the open state of the hinge is 180°, and in the open state the cabinet door (92) is arranged to fit the cabinet body (91).

9. A hinge opening and closing method, characterized in that: include: A hinge is provided, wherein the link comprises a chain seat (1), a first fixed seat (2), a first chain body (3), a second chain body (4) and a linkage member (5), wherein the first fixed seat (2) is used to be fastened to a cabinet door (92), the chain seat (1) is used to be fastened to a cabinet body (91), and the first chain body (3), the second chain body (4) and the linkage member (5) constitute a hinge body and are connected between the first fixed seat (2) and the chain seat (1); When opened, the cabinet door (92) rotates with the first fixed seat (2) around the first pivot (61), so that the second pivot (62) rotates around the first pivot (61) to drive the second chain body (4) to move forward, and the first chain body (3) is driven to move forward according to the displacement speed ratio N by rotating the transmission gear (74) arranged on the second chain body (4) to mesh between the first rack (71) of the first chain body (3) and the second rack (72) of the chain seat (1); When closed, the cabinet door (92) rotates in the opposite direction along with the first fixed seat (2) around the first pivot (61), so that the second pivot (62) rotates around the first pivot (61) to drive the second chain body (4) to move backward, and the first chain body (3) is driven to move backward at a displacement speed ratio N through the engagement of the transmission gear (74); Preferably, the rotation angle of the first fixing seat (2) from the closed state to the open state of the hinge is 115°-175°.

Images