A hinge integrating buffering and silencing functions

Abstract

The present invention relates to a hinge integrating buffering and silencing functions, which includes a fixed seat assembly and a hinge cup connected to the fixed seat assembly through a first swing arm, a second swing arm, and a hinge arm assembly. A cavity for installing a damping mechanism is provided on the second swing arm. A positioning sliding fit portion cooperating with the damping mechanism is provided between the cavities of the first swing arm and the second swing arm. The damping mechanism is slidably arranged on the cavity through the positioning sliding fit portion. The damping mechanism includes a buffer guide and a pre-buffer arranged on the buffer guide. Before the buffer guide acts on the first swing arm, the closing force of the hinge is pre-buffered to prevent noise from being generated when the buffer guide acts on the first swing arm, thereby achieving a silencing effect. That is, even when the user closes the door body with a relatively large force, when the hinge closes, no noise will be generated when the buffer guide acts on the first swing arm, truly eliminating the noise generated when the door body closes, and no noise will be generated when the door body is closed on the cabinet body, achieving a noise elimination effect.

Description

Technical Field

[0001] The present invention relates to the technical field of furniture hardware, and specifically relates to a hinge integrating buffering and silencing functions. Background Art

[0002] The applicant submitted a hinge with a buffering function on June 12, 2023, and its application number is 2023106918726. The hinge includes a fixed seat assembly, a movable seat assembly, a first connecting rod, a second connecting rod, and a connecting rod assembly. The first connecting rod is respectively hinged to the fixed seat assembly and the second connecting rod, the second connecting rod is respectively hinged to the movable seat assembly and the connecting rod assembly, the connecting rod assembly is connected to the movable seat assembly, and further includes a damping device. The damping device is arranged in the inner cavity of the second connecting rod, and one end of the damping device acts on the second connecting rod; when the hinge is closed, the first connecting rod and the second connecting rod perform a mutually closing movement, and when the hinge is closed to a corresponding angle, the other end of the damping device acts on the first connecting rod, so that the damping device is linearly movable up, down, left, and right in the inner cavity of the second connecting rod to realize the damping closing of the hinge; when the hinge is closed to a corresponding angle, the damping device acts on the rolling member of the first connecting rod through an acting portion; an inclined surface in contact with the rolling member is arranged on the acting portion. Noise is generated when the acting portion contacts the rolling member; especially when the user closes the door with great force, during the closing process of the hinge, when the acting portion is subjected to a large external force and acts on the rolling member, alternating noise will be generated.

[0003] Therefore, further improvement is needed. Summary of the Invention

[0004] The purpose of the present invention is to provide a hinge integrating buffering and silencing functions. The damping mechanism includes a buffer guide and a pre-buffer. The buffer guide and the pre-buffer act on the first swing arm in an orderly manner during the closing process of the hinge, and the pre-buffer acts on the first swing arm in advance to pre-buffer the closing force of the hinge before the buffer guide acts on the first swing arm, preventing noise from being generated when the buffer guide acts on the first swing arm, thereby achieving a silencing effect. That is, even when the user closes the door with a relatively large force, no noise will be generated when the buffer guide acts on the first swing arm of the hinge, truly eliminating the noise generated when the door is closed, and no noise will be generated when the door is closed on the cabinet body, achieving a noise elimination effect.

[0005] The purpose of the present invention is achieved as follows:

[0006] A hinge integrating buffering and silencing functions includes a fixed seat assembly, a hinge cup connected to the fixed seat assembly through a first swing arm, a second swing arm, and a hinge arm assembly. A cavity for installing a damping mechanism is provided on the second swing arm, and a positioning sliding fit portion cooperating with the damping mechanism is provided between the cavity of the first swing arm and the second swing arm. The damping mechanism is slidably arranged on the cavity through the positioning sliding fit portion;

[0007] The damping mechanism includes a buffer guide and a pre-buffer provided on the buffer guide;

[0008] The first swing arm and the second swing arm perform a closing movement in the hinge closed state and drive the damping mechanism to be positioned and move on the cavity. One end of the damping mechanism acts on the second swing arm. The buffer guide and the pre-buffer act on the first swing arm in an orderly manner when the damping mechanism moves. The pre-buffer acts on the first swing arm in advance and forms a buffer contact to achieve the damping and silent closing of the hinge. Before the buffer guide acts on the first swing arm, the closing force of the hinge is pre-buffered to prevent noise from being generated when the buffer guide acts on the first swing arm, thereby achieving a silent effect. That is, even when the user closes the door body with a relatively large force, when the hinge is closed and the buffer guide acts on the first swing arm, no noise will be generated, truly eliminating the noise generated when the door body is closed, and no noise will be generated when the door body is closed on the cabinet body, achieving a noise elimination effect.

[0009] The material hardness of the pre-buffer is less than that of the buffer guide. The pre-buffer is made of a soft material, and the buffer guide material is a hard material such as plastic. Because it makes frictional contact with the acting part of the first swing arm, a material with better wear resistance and hardness than the pre-buffer is selected. When the soft pre-buffer contacts the acting part of the first swing arm during the hinge closing process, due to the action of the soft material, the closing external force of the hinge is buffered. The pre-buffer is fixedly arranged on the buffer guide; alternatively, the pre-buffer is detachably and fixedly arranged on the buffer guide. When the pre-buffer fails, the pre-buffer can be disassembled and replaced.

[0010] The positioning sliding fit part includes an acting part provided on the first swing arm. The pre-buffer and the buffer guide form a point contact, or a line contact, or a surface contact with the acting part in sequence during the hinge closing process. The outer surface of the acting part is arc-shaped. When the acting part contacts the buffer guide, the friction force between the two is effectively reduced, and wear is reduced. On the one hand, it facilitates the movement of the damping mechanism, and on the other hand, it helps to avoid generating noise.

[0011] The acting part is rotatably arranged on the first swing arm. The buffer guide and the pre-buffer form a rolling contact with the acting part. In addition, the damping mechanism is front-line limited by the acting part and the cavity to move on the second swing arm, preventing the damping mechanism from disengaging from the hinge outward.

[0012] The buffer guide is provided with a guiding inclined surface that cooperates with the acting part, and the guiding inclined surface has the function of guiding the movement of the damping mechanism.

[0013] The positioning sliding fit part includes a first positioning side surface and a second positioning side surface provided on the cavity of the second swing arm. The buffer guide of the damping mechanism is positioned left and right between the first positioning side surface and the second positioning side surface; and the buffer guide is linearly positioned left and right through the first positioning side surface and the second positioning side surface to move on the cavity when the damping mechanism moves.

[0014] The positioning sliding fit part includes a positioning surface and a supporting part arranged on the cavity of the second swing arm, and the buffer guide is positioned up and down between the positioning surface and the supporting part; and the buffer guide linearly moves up and down on the cavity through the positioning surface and the supporting part when the damping mechanism moves.

[0015] An avoidance notch part and a bending part are arranged on the cavity of the second swing arm, one end of the damping mechanism acts on the bending part, and the pre-buffer part and the buffer guide act on the first swing arm through the avoidance notch part successively during the closing process of the hinge.

[0016] The damping mechanism further includes a damper arranged on the buffer guide, and a first elastic part is arranged on the damper. The damping mechanism performs a reset movement through the first elastic part during the opening process of the hinge.

[0017] The hinge arm assembly includes a first hinge arm and a second hinge arm. The fixed seat assembly, the first swing arm, the second hinge arm are hinged to the first hinge arm; the second hinge arm is hinged to the hinge cup; a second elastic part is arranged between the first hinge arm and the second hinge arm, and the second elastic part is positioned between the first hinge arm and the second hinge arm, so that the hinge realizes elastic opening and damping closing through the second elastic part and the damping mechanism during the opening and closing process. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the open state of the hinge according to an embodiment of the present invention.

[0019] Figure 2 It is a schematic diagram of the state where the pre-buffer part acts on the first swing arm in advance when the hinge is in the closed state according to an embodiment of the present invention.

[0020] Figure 3 It is a schematic diagram of the state where the buffer guide acts on the first swing arm when the hinge is in the closed state according to an embodiment of the present invention.

[0021] Figure 4 It is a schematic diagram of the structure where the damping mechanism is limited left and right and up and down on the cavity according to an embodiment of the present invention.

[0022] Figure 5 It is a schematic diagram of the disassembled assembly structure of the hinge according to an embodiment of the present invention.

[0023] Figure 6 It is a schematic diagram of the structure of the damping mechanism according to an embodiment of the present invention. Detailed Embodiments

[0024] The present invention will be further described below in conjunction with the drawings and embodiments.

[0025] See Figures 1-6, A hinge integrating buffering and silencing functions, comprising a fixed seat assembly 1, and a hinge cup 2 which is cooperatively connected with the fixed seat assembly 1 through a first swing arm 3, a second swing arm 4, and a hinge arm assembly 5. A cavity 7 for installing a damping mechanism 6 is provided on the second swing arm 4. A positioning sliding fit portion cooperating with the damping mechanism 6 is provided between the first swing arm 3 and the cavity 7 of the second swing arm 4. The damping mechanism 6 is slidably arranged on the cavity 7 through the positioning sliding fit portion;

[0026] The damping mechanism 6 includes a buffering guide member 8 and a pre-buffering member 9 arranged on the buffering guide member 8;

[0027] When the hinge is in the closed state, the first swing arm 3 and the second swing arm 4 perform a closing movement and drive the damping mechanism 6 to be positioned and move on the cavity 7. One end of the damping mechanism 6 acts on the second swing arm 4. When the damping mechanism 6 moves, the buffering guide member 8 and the pre-buffering member 9 act on the first swing arm 3 in an orderly manner, and the pre-buffering member 9 acts on the first swing arm 3 in advance and forms a buffering contact to achieve the damping and silent closing of the hinge.

[0028] The material hardness of the pre-buffering member 9 is less than that of the buffering guide member 8. The pre-buffering member 9 is fixedly arranged on the buffering guide member 8; or, the pre-buffering member 9 is detachably and fixedly arranged on the buffering guide member 8.

[0029] In this embodiment, the pre-buffering member 9 and the buffering guide member 8 are integrally formed by secondary injection molding; or, an installation position is provided on the buffering guide member 8, and one end of the pre-buffering member 9 is detachably fixed to the installation position by a buckle or a thread.

[0030] The positioning sliding fit portion includes an acting member 10 arranged on the first swing arm 3. The pre-buffering member 9 and the buffering guide member 8 form a point contact, or a line contact, or a surface contact with the acting member 10 successively during the closing process of the hinge.

[0031] The acting member 10 is rotatably arranged on the first swing arm 3. The buffering guide member 8 and the pre-buffering member 9 form a rolling contact with the acting member 10.

[0032] In this embodiment, the acting member 10 is arranged on the first swing arm 3 through a rotating shaft. The acting member 10 can be a rolling wheel, or the acting member 10 is a rubber sleeve, and the acting member 10 is sleeved on the rotating shaft.

[0033] A guiding inclined surface 11 cooperating with the acting member 10 is provided on the buffering guide member 8. During the closing process of the hinge, the acting member 10 rolls on the guiding inclined surface 11.

[0034] The positioning and sliding fit portion includes a first positioning side surface 12 and a second positioning side surface 13 provided on the cavity 7 of the second swing arm 4. The buffer guide member 8 of the damping mechanism 6 is positioned left and right between the first positioning side surface 12 and the second positioning side surface 13; and the buffer guide member 8 linearly moves left and right on the cavity 7 through the first positioning side surface 12 and the second positioning side surface 13 during the movement of the damping mechanism 6.

[0035] The positioning and sliding fit portion includes a positioning surface 14 and a supporting portion 15 provided on the cavity 7 of the second swing arm 4. The buffer guide member 8 is positioned up and down between the positioning surface 14 and the supporting portion 15; and the buffer guide member 8 linearly moves up and down on the cavity 7 through the positioning surface 14 and the supporting portion 15 during the movement of the damping mechanism 6.

[0036] An avoidance notch portion 16 and a bending portion 17 are provided on the cavity 7 of the second swing arm 4. One end of the damping mechanism 6 acts on the bending portion 17, and the pre-buffer member 9 and the buffer guide member 8 act on the first swing arm 3 through the avoidance notch portion 16 in sequence during the closing process of the hinge.

[0037] The damping mechanism 6 further includes a damper 18 provided on the buffer guide member 8. A first elastic member 19 is provided on the damper 18, and the damping mechanism 6 performs a reset movement through the first elastic member 19 during the opening process of the hinge.

[0038] In this embodiment, a cavity for inserting the damper 18 is provided on the buffer guide member 8. Positioning guide ears 29 are provided on both sides of the buffer guide member 8, and the positioning guide ears 29 on both sides of the buffer guide member 8 are in limit fit with the first positioning side surface 12 and the second positioning side surface 13.

[0039] The positioning guide ears 29 on both sides of the buffer guide member 8 are positioned up and down between the positioning surface 14 and the supporting portion 15.

[0040] The hinge arm assembly 5 includes a first hinge arm 20 and a second hinge arm 21. The fixed seat assembly 1, the first swing arm 3, the second hinge arm 21 and the first hinge arm 20 are hinged; the second hinge arm 21 is hinged to the hinge cup 2; a second elastic member 22 is provided between the first hinge arm 20 and the second hinge arm 21, and the second elastic member 22 is positioned between the first hinge arm 20 and the second hinge arm 21, so that the hinge realizes elastic opening and damping closing through the second elastic member 22 and the damping mechanism 6 during the opening and closing process.

[0041] In this embodiment, the first hinge arm 20 is provided with a receiving cavity. A hinge seat 23 is provided on the receiving cavity, and the hinge seat 23 is hinged to the first hinge arm 20; the second elastic member 22 is supported on the hinge seat 23. Plugs 24 are respectively provided at both ends of the second elastic member 22. An inner hinge arm 25 is provided on the second hinge arm 21. One end of the second elastic member 22 acts on the inner hinge arm 25 through the plug 24, and the other end of the second elastic member 22 acts on the hinge seat 23 through the plug 24.

[0042] During the hinge closing process, the first hinge arm 20 and the second hinge arm 21 close and compress the second elastic member 22, and the second elastic member 22 undergoes compressive deformation. The first swing arm 3 and the second swing arm 4 close and drive the damping mechanism 6 to be positioned and move on the cavity 7. When the hinge is closed to a corresponding angular position, the buffer guide member 8 and the pre-buffer member 9 move along the direction approaching the acting member 10 of the first swing arm 3. Since the pre-buffer member 9 is located below the guiding inclined surface 11 of the buffer guide member 8, the pre-buffer member 9 first comes into contact with the rotating acting member 10. Since the pre-buffer member 9 is made of a soft material, when the pre-buffer member 9 contacts the acting member 10, it buffers the closing force of the hinge. When the first swing arm 3 and the second swing arm 4 of the hinge continue to perform the closing movement, the pre-buffer member 9 disengages from the acting member 10 along with the movement of the damping mechanism 6, and the guiding inclined surface 11 of the buffer guide member 8 contacts the acting member 10 along with the movement of the damping mechanism 6 until the hinge is completely closed, and the first elastic member 19 on the damper 18 is in a compressed state.

[0043] After the hinge is closed and opened, the elastic force of the second elastic member 22 is released, the first hinge arm 20 and the second hinge arm 21 open, the damping mechanism 6 is reset by the release of the elastic force of the first elastic member 19 of the damper 18, the first swing arm 3 and the second swing arm 4 open, and the guiding inclined surface 11 of the buffer guide member 8 separates from the acting member 10.

[0044] In this embodiment, the fixed seat assembly 1 includes an outer frame member 26 and an inner frame member 27, and the outer frame member 26 and the inner frame member 27 can be fixedly connected in the form of screws and / or buckles; a bottom plate 28 is provided at the bottom of the inner frame member 27, insertion ribs are provided on the inner frame member 27, and insertion openings are provided on the bottom plate 28, and the insertion ribs are inserted into the insertion openings.

[0045] In this embodiment, the hinging is realized by rivets, connecting shaft pins, pin nails, etc., and how the two parts are hinged will not be elaborated one by one here.

[0046] For the connection relationships of other components of the hinge, please refer to Chinese Patent Publication No. CN101806182A, which will not be elaborated here.

[0047] The above is the preferred solution of the present invention, which shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A hinge integrating buffering and silencing functions, comprising a fixed seat assembly (1) and a hinge cup (2) which is cooperatively connected to the fixed seat assembly (1) through a first swing arm (3), a second swing arm (4), and a hinge arm assembly (5), characterized in that: A cavity (7) for mounting a damping mechanism (6) is provided on the second swing arm (4). A positioning and sliding fit portion cooperating with the damping mechanism (6) is provided between the cavity (7) of the first swing arm (3) and the second swing arm (4). The damping mechanism (6) is slidably arranged on the cavity (7) through the positioning and sliding fit portion; The damping mechanism (6) includes a buffer guide (8) and a pre-buffer member (9) arranged on the buffer guide (8); When the first swing arm (3) and the second swing arm (4) are in the hinge closed state, they perform a closing movement and drive the damping mechanism (6) to be positioned and move on the cavity (7). One end of the damping mechanism (6) acts on the second swing arm (4). The buffer guide (8) and the pre-buffer member (9) act on the first swing arm (3) in sequence when the damping mechanism (6) moves. The pre-buffer member (9) acts on the first swing arm (3) in advance and forms a buffer contact to achieve the damping and silent closing of the hinge.

2. The hinge integrating buffering and silencing functions according to claim 1, wherein: The material hardness of the pre-buffer member (9) is less than that of the buffer guide (8). The pre-buffer member (9) is fixedly arranged on the buffer guide (8); alternatively, the pre-buffer member (9) is detachably and fixedly arranged on the buffer guide (8).

3. The hinge integrating buffer and mute functions according to claim 1, characterized in that: The positioning and sliding fit portion includes an acting member (10) arranged on the first swing arm (3). The pre-buffer member (9) and the buffer guide (8) form a point contact, or a line contact, or a surface contact with the acting member (10) successively during the hinge closing process.

4. The hinge integrating buffer and mute functions according to claim 3, characterized in that: The acting member (10) is rotatably arranged on the first swing arm (3). The buffer guide (8) and the pre-buffer member (9) form a rolling contact with the acting member (10).

5. The hinge integrating buffer and mute functions according to claim 3, characterized in that: A guide inclined surface (11) cooperating with the acting member (10) is provided on the buffer guide (8).

6. The hinge integrating buffer and mute functions according to claim 1, characterized in that: The positioning and sliding fit portion includes a first positioning side surface (12) and a second positioning side surface (13) arranged on the cavity (7) of the second swing arm (4). The buffer guide (8) of the damping mechanism (6) is positioned left and right between the first positioning side surface (12) and the second positioning side surface (13); and the buffer guide (8) is linearly positioned and moves left and right on the cavity (7) through the first positioning side surface (12) and the second positioning side surface (13) when the damping mechanism (6) moves.

7. The hinge integrating buffer and mute functions according to claim 1, wherein: The positioning and sliding fit portion includes a positioning surface (14) and a supporting portion (15) arranged on the cavity (7) of the second swing arm (4). The buffer guide (8) is positioned up and down between the positioning surface (14) and the supporting portion (15); and the buffer guide (8) is linearly positioned and moves up and down on the cavity (7) through the positioning surface (14) and the supporting portion (15) when the damping mechanism (6) moves.

8. The hinge integrating buffer and mute functions according to claim 1, characterized in that: An avoidance notch portion (16) and a bending portion (17) are provided on the cavity (7) of the second swing arm (4). One end of the damping mechanism (6) acts on the bending portion (17). The pre-buffer member (9) and the buffer guide (8) act on the first swing arm (3) successively through the avoidance notch portion (16) during the hinge closing process.

9. The hinge integrating buffer and mute functions according to claim 1, wherein: The damping mechanism (6) further includes a damper (18) disposed on the buffer guide member (8). A first elastic member (19) is provided on the damper (18). The damping mechanism (6) performs a reset movement through the first elastic member (19) during the opening process of the hinge.

10. The hinge integrating buffer and mute functions according to claim 1, characterized in that: The hinge arm assembly (5) includes a first hinge arm (20) and a second hinge arm (21). The fixed seat assembly (1), the first swing arm (3), the second hinge arm (21) are hinged to the first hinge arm (20); the second hinge arm (21) is hinged to the hinge cup (2); a second elastic member (22) is provided between the first hinge arm (20) and the second hinge arm (21). The second elastic member (22) is positioned between the first hinge arm (20) and the second hinge arm (21) so that the hinge realizes elastic opening and damping closing through the second elastic member (22) and the damping mechanism (6) during the opening and closing process.

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